Full text of "Biologia Centrali-Americana : zoology, botany and archaeology /edited by Frederick Ducane Godman and Osbert Salvin."

See other formats

ae)

THOMAS LINCOLN
CASEY
LIBRARY
1925

BIOLOGIA

CENTRALI-AMERICANA.
INSECTA.
COLEOPTERA. Vor. IV. Pant 1. _

HETEROMERA (part).

GEORGE C. CHAMPION, F.Z.S.

1884-1893.

INTRODUCTION...

EXPLANATION OF PLATES .

Errata ET CoRRIGENDA
TENEBRIONIDE . . .
CISTELIDE . . ..
OTHNIIDH . .
Ninionw# ee
MonomMIpDH. . . .

PLATES.

CONTENTS.

XXVli
XXXIV
1,477
385, 563
465

470
472, 570

INTRODUCTION.

THE Heteromera include numerous heterogeneous families of Coleoptera, which agree
inter se in having their tarsi distinctly 5-, 5-, 4-jointed * ; and in the whole of the species
here enumerated, Mophon tinctipennis, which has 4-jointed anterior tarsi in the male,
is the single exception to this formula. The only other Coleoptera likely to be
confounded with the Heteromera are certain members of the Cucujide and Crypto-
phagide, belonging to the Clavicorn-series, which have the hind tarsi 4-jointed in the
males and 5-jointed in the females. The Heteromera comprise a greater variety of
forms than any other of the main divisions of the Coleoptera, nearly all of which are,
as it were, reproduced here. As examples of this assimilation, the following genera
are especially noteworthy, viz.:—Statira (Lagriide) to various Carabide (Agra,
Calleida, &c.) ; Cuphotes (=Spheniscus) to Cypherotylus (Erotylide) ; Doliema (Tene-
brionide) to various Cucujide; Uroplatopsis (Lagriide) to various Hispide (Uroplata)
and Lycide ; Calopus (Gidemeridz) to various Longicornia; Othnius to various Cleride ;
Phrenapates (Tenebrionide) to various Passalide; Hapsida, Nautes, and Gonospa
to various Chrysomelide ; Diplectrus (Gidemeride) to Chauliognathus (Telephoride) ;
Sisenes (Ckdemeridee) to various Telephoride; Nilio to various Coccinellide and
Endomychide ; Zypetes (Tenebrionide) to Apierus (Histeride); Paratenetus (Tene-
brionide) to various Cryptophagide (Cryptophagus and Corticaria). Probably no
better cases of so-called ‘mimicry,’ or homochroism, can be found amongst the
Coleoptera than exists between certain species of Cuphotes and Cypherotylus, and
between Uroplatopsis (U. mimica) and Uroplata (U. dimidiata).

Fourteen families altogether are represented in Mexico or Central America, which
are here dealt with in two volumes: the Tenebrionide, Cistelidz, Othniide, N ilionide,
and Monommide in the first; the Lagriide, Melandryide, Pythide, Cidemeride,
Xylophilide, Anthicide, Mordellide, Rhipidophoride, and Meloide in the second

volume.

All these families are common to Central and North America, with the exception of
the Nilionide, a small group peculiar to the forest-region of Tropical America; two of

* In an aberrant Old-World genus, Heterotarsus, Latr., they are 4-, 4-, 3-jointed.

vi INTRODUCTION.

them, the Othniide and the Xylophilid, contain as yet no described species from the
South American continent, but both are certainly represented there. The Aigialitide,
Cephaloide, Pyrochroide, and Stylopide, so far as at present known, are absent from
the Central American fauna: the first two of these families contain but a single
species each, and are both confined to Boreal America. The Pyrochroide are mostly
restricted to the temperate or boreal regions of the Northern hemisphere ; four genera
are known as occurring in North America, one of which, /schalia, may, perhaps, be
found eventually in Northern Mexico. The Stylopide, parasitic upon Hymenoptera
and Homoptera, are very widely distributed, and the family can scarcely be unre-
presented within our limits; these insects, however, are everywhere very rare, and

seldom met with by ordinary collectors.

The total number of species of Heteromera here enumerated from Mexico and
Central America is 1776, belonging to 261 genera; 1295 species and 92 genera
are described as new. In Gemminger and Harold’s ‘ Catalogue’ (1870) 6827 species
are given for the whole world, and since that time nearly as many more have been
described, so that at the present time Mexico and Central America furnish about 13

per cent. of the named species of the whole world.

The following analysis shows the number of genera and species in each of the
fourteen families; and the Table (pp. vii-xvi) gives the geographical distribution of
the genera, with the number of species of each genus. The generic names printed
in “clarendon type” are new; those placed within brackets belong to genera doubt-
fully found in the Central-American Fauna. The Republics of Honduras and Salvador

are omitted from the “ Table,” as no material has come to hand from those places.

er Total number | Total number | New specie
Families. of species. of genera, described. piss:

Tenebrionids ............ eee eee - 870 145 694 49
Cistelidee .... cee cece ee ee ees 158 24 150 15
Othniide ..... eee eee eee 6 1 5 —
Nilionid®..... 0... eee eee eee eee 4 1 3 —
Monommid® ..........0c cece eeee 12 2 7 1
Lagriid®@ 1.0... cece ee cece eee 107 9 97 6
Melandryide ...............0.84. 45 20 40 9
Pythidee ..... cece eee ee 7 5 6 3
(idemeride ........... 0.2 eee eee 90 12 84 5
Xylophilide..... cee ee ee ee eee 45 2 44 1
Anthicide .......... 0c eee 93 8 69 —
Mordellide .......... 0. cc eee eee 158 12 147 3
Rhipidophoride .................. 21 3 11 —
Meloidzee 1... 0... ce ee eee eee eee 160 17 388 pan

1776 261 1295 92

Total number of species.

INTRODUCTION. vii

Geographical Distribution of the Genera of Heteromera represented within the limits of
Mexico and Central America.

Sho bo HHO toto

ORR HED HTH AWH

for)
oO

CrnTRAL AMERICA. 2
M
rd H S$ a
— fw s]
i lala ar
S El2is zZ =| 5
he Fis |S] 38 2)/48] es! s]-52/ 8a
BYE e/ 2/7 8/2) 2) 2] se 21 =
2 a}/Z2/S|/F al oSlazlolalala
TENEBRIONIDE.
1 | Pimeliopsis ............ ae *
— | Triorophus .............. * | *
2 | Trimytis...........+..5. x1] * | *
1 | [Trientoma] ............ we fee | 2? *
3 | Mesabates .............. ..[* | *
1 | Pescennius.............. Le fae | *®
1 | Soomias .............0.. Lede. | ®
2 | Mencheres.............. oe ee
1 | Posides ................ es |
1 | Eurymetopon ............ * | * |
28 | Emmenastus ............ a ee The apterous species do not extend
south of Mexico.
13 | Schoenicus .............. a
31 | Epitragus .............. xix | «ei|*«)«} «el * | *) & | «| «| * | 2? Introduced in Sandwich Islands.
3 |Tydeolus .............. . *
6 | Zopherus.............6-- Oa er ee 2
13 | Nosoderma.............. .Pwe ] el ela foe] ee dee lo. pe |... | | 2? Also Usambara, E. Africa.
1 | Areoschizus ............ * | * | *
— | Dacoderus .............. * | * *
Asida ........-2-05- . on
49 (Tisamenes, Ucalegon,Za- xl xe | x {As very numerous in species in
leucus, and Poliorcetes.) Kurope and N, Africa.
— | Microschatia ............ * | *
6 | Astrotus .............0-- * | * | *
1 | Sicharbas .............. we fe. | *
5 | Ologlyptus .............. * | * | *
— |[Psectrascelis] .......... LP 2]. peepee Peed ee fee]. Pe] ® be
1 | Branchus .............. we d.. late. le. dae] aw tee lo. Pee]... |... | Also Bahamas.
— | AmectuS ...........+.0-. es ee er ee 2
1 | Oxinthas .............. ef ee | ®
2 | Cryptoglossa ............ * | *
— | Centrioptera ............ * | *
6 | Eusattus.............06. *|]* | *
96'| Elmodes .... 2. cece eee elelal ti..ial..]../..]..]..|.. | Just reaches the Los Altos region
of Guatemala.
| Embaphion ..5......0.00. * | *
198

t Not yet recorded.

vill

INTRODUCTION.

Geographical Distribution (con.).

CrentTRAL AMERICA.

|
. 3
wm | § S =
s 2 om ie z
a oe El2/|
ae | & a}2/5
288 | 198 TENEBRIONIDE (con.).
10 7 | Argoporis ............4- * |e | x
1 | —j|[Ammophorus] ..........
1 | — | Diceroderes.............. *
1 1 | @nopion...........6.... en re
3 2 | Centronopus ............ x] * | *
1 | — | Pyres .............-06-- _ es
4 1 | Rhinandrus ............ * > * | #
11 2 | Zophobas ..........0e me re:
1 | — | Alobates............00.. * | *
1 | — | Tauroceras .............. | #®
2 1 | Nyctobates ...........5.6) 65 * | *
8 7 |Nuptis .......... ee eee. *
2 2 | Matus.......... 0c ee eee *
1 1 | Hicetaon ...........4.. *
1 1 | Sthenobma.............. . *
2 2 | Glyptotus .............. * *
3 3 |Isicerdes .............. - *
6 6 |Hesiodus .............. ? *
1 1 |Ilus oo... ce. eee eee
2 2 | Choastes..............5. .
1 | —|[Tenebrio] .............. * |...
2 2 | Rhacius................ .. *
1 | — | Eupsophus.............. wa ae
2| — | Hopatrinus.............. eo. *
1 | — | [Pedonceces] ............ |
27 22 | Blapstinus .............. a oe”
2 2 | Notibius ................ a
2 2 | Conibius .............06- *i)* *
3 3 | Ulus ........ cece ee eee *]* | *
1 1 | Penichrus .............. oe
3 2 | Trichoton .............. * | *
1 1 | Cnemeplatia ............ * ..
4 4 |Crypticus .............. eo... ®
~——_|-—-
400 | 276 |
|

a
.iele/2| 8s
EF 6) 8) &|
a= oo; g 5 3
Si/Mi si sig
3 . 3s | .2 °
Hl OoOl|aAloO

*
*
x | T |) T | *
x) * #) KR |
*)*e *l xe
a ee ee
a 2
* |
a
* | T ) xls) tT

a 2
* * *&) *
x *

*i ft ie) # | *&

.. *

* *
cele
* |.

+i) x * T

Andean and extra-tropical 8. Am.

$
o
5
<j
wo
sia
1°
aie
2? >x* |
*
* | *
1.
* | *
* | *
*
*
* | *
*x | *
*
*
? *
* | * | x
*
* | #
* 1 * | *
* [we | *

| Antilles.

Also Galapagos Is. Recorded by
mistake from Sandwich Is.

Introduced in St. Helena.

Cosmopolitan. Origin doubtful.

In Central America restricted to
Atlantic slope. :

Probably recorded from Panama by
mistake. The other described
species are from the Galapagos Is.

Atlantic and Pacific coasts; also
inland.

Also Europe, N. Africa, and Madeira.
Also Europe, Asia, Africa, Canary
Is., Australia, &c.

Tt Not yet recorded.

INTRODUCTION. ix

Geographical Distribution (con.).

CrntrAL AMERICA. 4
RM
g 8
3 | x a] |g ,| 5
ae . |B] [2 gle
«= | § ra = 5/8
x | 2 e[s/2 a 4|3
ss 2) 2 1e Rlélai¢ ai|®
a |B al2lalglZlele|2)2|el ala
a oe ria | EIB lisSisSlals Sisi|s
= 1s SIEIE/E/F |B /8leleisl|els
a | 4 fle isialalsle2is|aé]al|4)-
400 | 276 TENEBRIONIDZE (con.).
1| — | Phrenapates .......-.+.. we dee [ee dee * | * | * | ees
1 1 | Daochus .........----08> es es
1 | —|Peneta .......--seeeees Ledee dee dee fee dee Jee des | # ES
1 | — |Cleolaus .........+-s.00+ ede. | *
1 1 | Telchis ........++---0-- se Pee dee dee feeder oodles | ® Be
2 2 | Phthora ........---+ee0- *].. | * HK jee Also Europe. ? Lifu I.
1 1 | Zypotes .... .. eee eee ees ee ee ee
1 1 | Arrhabeus ............ es en ee ee
1| — | [Gnathocerus] ...... bag dew tale. bcd ae fee ]e. |.. 7. | a |. | Cosmopolitan. Origin doubtful.
3 2 | Echocerus .........- Lae dew dae dae |] tla foe | th | tp |... | | Introduced into Madeira and Ca-
nary Is.
2 2 |Sicinus ......cceeseeees a *
2 2 | Iccius........ ee cecccees .-[.. | * *
2| — |[Tribolium] ......... i * * * | Cosmopolitan. Origin doubtful
Q|} — | Alegoria...... eyeeeenats . *e|Tl*el|e felt le |e *
a3 1 | Pheres ...... eeesee esse we dee fee [ee .. *
1 1 | Uleda........-eeeeeeee: .. de. | * ws .. |
1| —|Antimachus .......-...- on ee .. | * *
Z 5 | Uloma.........008 oesees a oe ee * | Generally distributed.
1 1 | Cynwus ...... eee eens: * | x
2| — | [Alphitobius] .........-.- *]* | * | * * | * | | «| * | Cosmopolitan. Origin doubtful.
1 | — | Aphanotus .......--.---. * | * .
6 4 | Doliema .....eeeer ee eees ele lel«l «lal | t |] || * | Also Java, Manila, Batchian, and
Ceylon.
3 2 | Sitophagus ......-....--- ee ee Se x | Introduced intoEurope and Madeira.
6 3 | Ulosonia....seseeeeeeess a ee *
Q| —|Metulosonia ...........- v3 e|../* |e |e) Tle d*
1 1 | Phayllus ........ eevee - a ee
a 1 | Msymnus ........--6--- .. *
3 2|Mophis ........e.+---:: oe. ee ee *
6 4 | Corticeus (Hypophleus)....) *} tT | *) tT) * | * | * Tile|x* x | Generally distributed, including
Australia.
1 | —|{[Palorus] .....- eeeeeeis wl |..|eelee|ee fee lee fee fe) |-- |» | Cosmopolitan. Origin doubtful.
1 | — | Diaperis ........+-.+---- xl.ofaweiee| Tha le. |..].. pa |. | ® | Generally distributed, except &%.
Africa and Australia.
15 9 | Arrhenoplita (Hoplocephala)| *« | t | * | * | * | * | * + | x | | «| « | Almost universal, including many
Oceanic islands.
i 1 |Saptine ....-eeeceseeeee| eo fes | *
481 | 323

+ Not yet recorded.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, March 1893. b

xX INTRODUCTION.
Geographical Distribution (con.).
g
CuntTRAL AMERICA. <
TR
Z re} 2 8 3 S"
od o i 8 | 2
2 | = 2/212] | | {ale
=| Fle | 2) ./2/2/2/8/) 2/3181,
R e ele\/2/2/8/8/2 a | 2 g |e
$18 SIS el Sl/FBlZlelel elf 2/3
a Gq 4/42 /0;/F (H/o /A/oj;ayelsjaia
481 | 323 TENEBRIONIDZ (con.).
48 | 23 | Platydema ........-..005 wl «| «il «| «lal «l«| «| «*] «| | Generally distributed, including
_ Australia, Sandwich Is., &e.
7 2 | Liodema.............005 * *|*I TPT] ei] «| T | ep * bee
1 1 | Stenoseapha ............ ° * . *
1 1 | Paniasis.............06- . *
1 1 | Lelegeis ............-06- *
2 1 | Cosmonota ...........05- * * | *&| * ..| *
9 4 | Hapsida ..........--000- *| *| *) #) *] | RT ®
1 1 | Gonospa.......... 02.06. we . *| * Jo.
2 2 | Enneboous ...........06.- .J.. | * Le * | *|.. |. | Also Tasmania.
9 8 | Phaleria .. 1.6... ee eee «| «| «| «| «| «| *|T | *] *| *| *|Sea-coasts generally, except Aus-
.. tralia.
1| — | Byerea ...........---5: .. | # ood.
1| — | Scaptes ............-0-5 * | # ioe * *] *| ? | .*
1 1 | Xenius ...............- te lee *
2 1 | Calymmus .............-. * | * *| *]..| YT *
4 4 | Ozolais .........-00008s .. .. *¥| *| eT *
6 4|Goniadera ...........-5. *| |e) e) | Re] eT
2 2 | Xanthicles.............. . a *
1 1 | Amymone............-. a rr a
11 | 10 | Anedus ................ *)*| *| *) *| | *¥] *e] RYT *
16 | 14 | Paratenetus ............ ce ee ee ee ee
2 1 | Cyrtosoma .............. * *| *| ®] *e) REX *
1 1 | Othryoneus ............ . * .. | *
1 1 | Camaria .............5.. wees x] *| * Also ? Madagascar and China.
1 1 | Blapida ................ *| x ..| *
1 1 | Mophon ................ a * *
3 3 |Epicalla ...-.......... * * * | *
2 2|Moon...............--- we dee Ds en ee ee
1| —|Elomosda .............. . ee |
12 10 | Acropteron .............. * +l el «| «| ep *| &¥] x
1 1 | Pseudapocrypha ........ * 1. | *
1 1 | Saziches...........0.... . *
9 6 | Oxidates................ *
3 2 | Mitys..............0... *
2 2 \Isaminas .............. es a
18 | 12 | Hegemona.............. *) ei) eR] ek] eK] el RD x All the described species but one
| _. are from Central America.
665 | 448

+ Not yet recorded.

INTRODUCTION. xi

Geographical Distribution (con.).

CruntraAL AMERICA. &
wa
a $ 3
Se |< iG g | G
ae | 4 =| | £4
3 8 S = a| 8
g | 3 e1si4| |g 4| 3
a4 S1218) |f)/4lel4|] [4/3
e S8l=|a/8/E)8/P/2 es] Sl ele
ot m 5 | 4 ~ ° Oo x a : 4 3S ~/
fe E IE e (S/F leis ei el 3 |B
a | 4 Ele lS|slalole2lsliélalala4
665 | 448 TENEBRIONIDZ (con.).
t | — | Dimomus ....ececeeeees ~te.] & i.e] ee dee |e) dee fee dee |. |... | Recorded. from Mexico, but not
_ since corroborated.
90 | 18 | Nautes ........ eee eees ee ce se ee ee ee
51 | 42 | Tarpela ........20-+--6> oe ee ee ee t | Chiefly tropical.
18 | 15 | Helops .......-.-.+-+5- alae] *( Tt] ft] *| rT) rt] *p* * | Generally distributed, except Aus-
tralia and S. Africa.
3 3 |Mentes ........-0.2006- tebee tee bee tee | ® Lee dee | ® . i ee ee
13. |. 11 | Talanus ..........+-.06- ei rl] ei tT) «| *e) *] ee] eT * | Chiefly tropical.
6 3 | Pyanisia ......ee------ ee *
6 2 | Cuphotes (Spheniscus) ....| . * fl x*x| *| *] *¥>*
10 | 10 | Peecilesthus ...........-- ee ee
69 | 384 | Strongylium ...... weueee ee * | Chiefly tropical, also warmer parts
of Asia and Africa.
7 7 | Otocerus (Hoploptera) ....|.. *| * *] *
i 1 | Pseudotocerus .......... . * *
870 | 594
PAIR inn RD
CISTELID Zz.
46 | 45 | Lobopoda .......-++.+6+ xl al «il «i «| «| «| | *] «| *] * | Chiefly tropical.
1 1 | Temnes ........-.+----- we ec bee a ..| *
11 | 11 | Allecula .............- aloe d.. | ae] et toe] et tT] ep & |] 2 | Also Hurope.
8 8 | Alethia ...........-4-4- ..t «| *
1 1 | Theatetes .........---6- ..de. | ®
5 5 |Charisius ............-. ee ee
1 1 |Narses ........ .+--e-- sePee dee | eed ee | #
39 | 37 | Hymenorus............-- wll «lal tl a«lal..|..]..].-|].. | Also Europe, Asia Minor, &e.
1 1 | Manes ..........2.0-8- we * —_
1 1 |Polyidus ............6. - * | .. *
2 Q2|Menes ..........--..5> . * | *
2 2 |Meneceus ............+- * *|.. *
1 1 | Diopeonus .............-. en eee: .
1 1 | Pitholaus .............. wa Bes fee dee beef #
1 1 | Amaropsis.............. .e *
9 9 | Phedius................ a *
1 1 | Telesicles ............-- ae Oe
4s 19 | Cistela oe eee ee ee xl«l «i ti] rile} *e| «| ep t]..].. | Also Europe, &c.
5 A> | Tsomeira 2... ce ee eee es el rial ti..| *]--|--]--pe-]-- | -- | Also Europe, N. Africa, &c.
148 | 144

+ Not yet recorded.
62

INTRODUCTION.

xil
Geographical Distribution (con.).
|
CrntRAL AMERICA. <
mM as
S ‘é
& 3d 4 Ss 3 5
e | 2 s| \2 Par
«3 | 8 S| | a |
5 | 3 €/§)2 j 4} 5
—q | 8 S| Ele Elalal¢ a | =
ge | 8 el2l2/eietlel Solel elelala
z | B EVS|/E/2/8\2) 2/3) 8/2) 813
@ | eg 15/8/82 lel 8l2)81/S) E32
a | & a/42;/d/Flaelol/424islialal4]-<
148 | 144 CISTELIDZ (60. ).
Q9| 2) Erxias ............008- - * %
1 1 | Prostenus ..........006- .. e we dae x) *| x
3 3 | Lystronychus ............ * *|/ #1 PT] el] *| Tt] Px
3 | — | Xystropus .............. 2 * {| ¥| fT | ¥P x . | Doubtfully Californian. In Mexico
reaches to Isthmus of Tehuante-
pec only.
1 — | Cteilsa........6 eee eeeees . * *i] *
158 | 150
7 | iol .
OTHNIIDZ,
6 5 | Othnius (Elacatis) ........ * * Tlal Til Trl] «if? ...| Also. Borneo, Batchian, Ceylon,
| Shem nS ocsaestceste Japan, Siberia, &c.
NILIoNIDz.
4| 38) Nilio ..............-46. */ #*| T | eT x
MonoMMIDz.
11 6 | Hyporhagus ............ Pe) *) *) TT) *#) ee) Tr] ep &e] ee]
1 1 | Aspathines ............ rs ee 2 1. | *
12 7
LAGRIIDA.
83 | 75 | Statira .. 0... cc ee ee ee i * | Chiefly tropical
9 9 | Uroplatopsis ............ .e .. ee eth ita
2 2|Epicydes .............. .. * * | *
3 3 | Sphragidophorus ........ .. * * * | T
1 1 | Meniscophorus ....... eeel ee .. .. * | x
5 4 | Colparthrum ............ . * Ti *|*) & lx] x
1 1 | Othryades .............. 1 .. a *
1 |. 1 | Rhosaces ............., an 7 .. *
2 1 | Stilpnonotus ............ * * *
107 | 97 |

+ Not yet recorded.

INTRODUCTION.

Geographical Distribution (con.).

xili

-* Not yet recorded.

INTRODUCTION.

Xiv.
Geographical Distribution (con.).
z
CuntraL AMERICA, ~
mM
2 |g iG g |e
2 | 3 =| |z £\<
a i: 6 = oma ne=
S| 2 a|¢| a , g| 8
3 3 S ais Elale|é “|e
g 3) s eS -/ 53/3 3 | em > ft 4 S .
5S 3 sfeio/e¢/FBl] se) >is] stele] es
a o Stale/S]/s)s}e)/2) 878) 813
ale elEle/slHls ele) sl/l sls
2 g ° ® So . = oe fo) Gs} oS q =I
a | & “aAj2/S/F|/alsl/ajojatal|ai<
13 | 12 CEDEMERIDZE (con.).

6 6 | Ditylus .........---6.-- * * * we feed. . | Also Europe, Canary Is., &c.

6 6 | Diplectrus ............--|.. * *| *| *| *] x

2 2 | Diplectroides............ ve * *

3 3 | Vasaces .......ee00----0] 0. * * .
21 | 21 | Sisenes ..............-- * a
1 | Vodomarus ............ .. * *|.. * ao
: 8 | Copidita ........eeeeeees wx f.. | #1... * | #*#|..| ¥E + |.. | « | Probably widely distributed.
28 | 23 | Oxacis (? Ananca, Fairm.)..| x] *| *| T | *| *; «| T | *] * | *1. * | Widely distributed, _ occurring also
in many Oceanic islands, Absent
from Europe.
2 2 | Piras ...... cee ee ec eeee * *
90 84
CT XYLOPHILIDZ.
44| 43 Xylophilus.............. * * *| x * | * Generally distributed, including
Australia.
1 1 | Cnopus ...........eee ee]. *
45 | 44
ANTHICIDA.

5 5 | Hurygenius.............. x] *| * * *

1 1 | Bactrocerus .........-.. *Y.. |... .. | *

11 11 | Macratria ..........008- rae ee Se ee ee ee * | Generally distributed, including

; Australia. Absent from Europe.

16 | 14 | Notoxus ...........-..0 ee ee ee 2 * | Generally distributed, including
| Australia.

1 1 | Mecynotarsus............ * * ...| Widely distributed, including Aus-
tralia. Chiefly maritime. Not
recorded from §S. America or
Antilles.

7 7 | Tomoderus ..........+-.- * * *| x * | x | Generally distributed, including

+ Not yet recorded.

INTRODUCTION.

Geographical Distribution (con.).

CENTRAL AMERICA. §
wo
g g &
e | # a & oie
3S BR i) =| | o| =
Fa = oe 8 wh | “a . g 3
mn . Ss : °
a | 8 SIEIE| |2)4)el¢| 4/3
A | é. S]@ s/s lB) a) S/S) g]elele
eee 7) oe | fj} + S| 2 = 3 4 |
£ EB S15\% g Hise) s|a E S| |S
a | 2 a/4/S/Fialole/Si/a] 8/44
MorDELLIDz.
1 1 | Diclidia .............-.. *].. *
10 | 10 | Pentaria................ xl *| al Tl rile) «ltl * Also the warmer parts of Europe, &c.
4 4 |Naucles ..............-- fe. | * * ;
1 | —/|Amaspis ................ * | * . . | Palearctic region generally. In
America just enters Northern
Mexico.
a 1 |Cothurus .............. . *
4 4 | Tomoxia................ * *| * x|..| fe]... Also Europe, Australia, &c.
1 | — |Glipa .................. Pe ee a ee 2 Also Tropical Asia.
58 | 53 |Mordella .............. ae] ae) al Tl] «el e) el] ae] ep ael x Universal. Chiefly tropical regions.
1 | — | Glipodes ................ epee] epee | RL RL. Lee | ® .
1 1 | Conalia .............. 0.) 5. a | ® oe on Also Europe.
1 1 | Calyce ................ fee]... ]-. e * | * ; ;
75 | 72 | Mordellistena............. a Se ee Universal. Chiefly temperate regions.
158 | 147
RaIPIDOPHORID Az,
4 3 | Pelecotomoides ....... weelee * a * * | * Chiefly Tropical 8. America and
Australia.
10 2 | Emenadia .............. x] «| «| «| T | «*] «| «] &]f «| «| «| Generally distributed, including
Australia.
7 6 | Rhipidophorus (Myodites) ..| *] * | * * Widely distributed, except S,
eae: area America and Australia.
21}. il
eee | a |
MELOIDz.
4 2 | Meloe .......... ee eee e>ael al tT) Tt] &] el & * | Widely distributed, except S.
America and Australia.
3} —/|Henous ......... wb eeeee a] *] * ? Exclusively American.
1 | — | Cysteodemus ..........%. * | *
2 ao Megetra oes @ ewes en @ eoeoe ° * *
1 | —|Leonia............ ease en
2 1 | Horia.........0...0000e xi tle! titi] «| *«) «| «> *]..| * | Also tropics of Asia and Africa.
13 4 | Nemognatha ............ el «| «] «i +t] «il «| «| *]*|] *| *| Widely distributed, except Aus-
tralia.
3 | — |Gmathium .............. x1] * | * — . ;
10 4 | Zonitis ...... beccescece el tie) Tt) tp] *«) *] ti] ey t Generally distributed, including
Sanaa eae Australia.
39 11

+ Not yet recorded.

XV INTRODUCTION.

Geographical Distribution (con.).

El
CrnTRAL AMERICA. “a
{ vA)
oi 7 S .| 6
# | 3 3 = 2 | 5
en 8 = Hi
ro) a Sis ia . ®
5 oS % Sieg a : . s ce
4 | 8 Fle s/./ 2/3/21 8] ./2/ 68],
g | 2 sje ialegiSif| &le/ 41s) ela
a g, ele /£/8/5/) 8/8) 6] #121 8/8
a|2 Sle /e)/8/ 4) 8/8) 8) 8] e|2| =
& 2 “A/Z2 /O;/F/A/O 42 /O;ayTael;ais
39 | 11 MeELomz (con.).
13 | — | Tetraonyx ......--+-0+: eo ee ee ee Exclusively American,
re oe tropical.
1 — | Eupompha .......---+--- *| x
2 1 | Calospasta .......+65 eee] we PR] “|: . :
5 Macrobasis ......++++-+0 xl al «*i..|..| «| *#/|*#]..]*%]..|..| Chiefly Mexico and temperate
15 < | Ma North America.
— | Gnathospasta ........+-+> *1..| * “| aes :
5 3 Epicauta, oo econ aes ot we dae | cel oe | oe | | et & | ed oe | | | Generally distributed. In America,
. chiefly Mexico and temperate
regions northwards.
15 3 | Pyrota .... cece eee eee ala] «lt >t] «| «| «| «xf «*|..|..| Chiefly Mexico and temperate re-
gions northwards. ? Exclusively
American.
925 6 |Cantharis .......e-eeees xlael «el ti tl al tf] *) «ff «| «|... | Generally distributed. In America,
chiefly Mexico and temperate
160 | 38 . | regions northwards.

+ Not yet recorded.

The Tenebrionide, by far the most extensive of all the families of the series,
include an immense number of species from all parts of the World. ‘The total
number of species enumerated from within our limits is 870, belonging to 145 genera,
of which 49 genera and 594 species are described as new; of the 145 genera, five are
introduced and three have probably been recorded by mistake. ° The three subfamilies,
the Tentyriinee (134 species—108 new), the Asidine (93 species—64 new), and the
Tenebrionine (643 species—422 new), are represented by six, four, and twenty-one
“ eroups ” respectively. ‘The ‘ Epitragides,’ the most numerous in species of the six
“groups” of the Tentyriine, are exclusively American, and the largest and finest of
the known species, some of which exhibit a very remarkable form of the thorax in the

+ In Gemminger and Harold’s ‘ Catalogue’ 4519 species are given for the united families Tenebrionids and
Cistelidee

INTRODUCTION. XVIiT

female sex only, are peculiar to Mexico and the adjacent country to the northward ;
fifty-three species, belonging to three genera, inhabit Central America. The
‘Zopherides ’ have their head-quarters in Central America, and the genera Zopherus
and Nosoderma are amongst the most characteristic Heteromera of the region—
Zopherus, with fourteen species, ranging a little north and also a little south of our
limits; Nosoderma, with sixteen species, though more widely distributed, not extending
north of Mexico, being replaced there by the allied genera Noserus, Phlwodes, and
Phellopsis. The ‘Tentyriides, so numerous in genera and species in the Palearctic
Region, contain comparatively few representatives in the New World, and the majority
of the Central American species belong to one genus, Emmenastus. The other three
groups, the ‘ Epiphysides,’ the ‘ Stenosides,’ and the ‘ Dacoderides,’ furnish only one,
three, and one species respectively, all from Northern or Western Mexico. The sub-
family Asidine includes four “ groups,” three of which are not represented south of
Mexico ; the other group, the ‘ Nycteliides,’ is more widely distributed, being especially
numerous in Chili, and three genera (two of which form the ‘ Branchini’ of Leconte
and Horn) of somewhat uncertain affinities are referred to it—Branchus with two
species, and Anectus and Oxinthas with one each *. ‘The ‘ Asidides,’ ‘ Cryptoglossides,
and ‘ Coniontides’ are characteristic of the arid regions of the Southern and South-
western United States and of the elevated plateau of Mexico, the genus Asida possessing
fifty-five species in Mexico alone; Coniontis, with many species in California &c., is
unknown as yet from within our limits, where it appears to be replaced by Eusattus,
ten species of which occur in Mexico. The subfamily Tenebrionine includes a
multitude of species, and twenty-one of its main “ groups” are represented in Central
America; six of these “groups,” the ‘ Kutelides,’ ‘ Phrenapatides,’ ‘ Goniaderides,’
‘ Cnodalonides,’ ‘ Misolampides,’ and ‘ Amarygmides,’ all containing forest species, do
not extend north of Mexico; North America, however, has two groups, the ‘ Amphi-
dorides’ and the ‘ Meracanthides,’ which are absent from the Central American fauna.
The species of seven of the “groups” of the Tenebrionine live upon the ground,
those of all the other “ groups” being found on trees or herbage, or under bark,
in rotten wood, or in fungi attached thereto. The number of Central American
species of the subfamily amounts to 643, belonging to 115 genera, 40 genera and
422 species being described as new. Of the various “groups,” the ‘ Blaptides,’
represented within our limits by two exclusively Central and North-American genera—
Eleodes with sixty, and Embaphion with one, species in Mexico,—are characteristic

* Psectrascelis has been incorrectly recorded by Solier as from Mexico.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, March 1893. C

XVill INTRODUCTION.

of the plateau of Mexicoand the adjacent country to the northward, Eleodes extending
as far north as Hudson’s Bay and southwards to the Los Altos region of Guatemala,
where a single species occurs. The ‘Scaurides,’ with one genus, Argoporis, the
American representative of the well-known European genus Scaurus, of similar habits
to the Blaptides, include ten species, most of which are confined to Northern Mexico,
‘The ‘ Pedinides’ are chiefly represented by one genus, Blapstinus, numerous in species
(27) in Central America, as well as in other parts of America, north and south. The
* Opatrides’ have only one typical genus in Central America, and that one of the most
minute forms known, viz. Cnemeplatia, a genus also occurring in Europe, North Africa,
Madeira, and North America. The ‘ Helopides’ are represented by a large number of
species, especially in Mexico and Guatemala, belonging to the three genera Nautes (20),
Tarpela (51), and Helops (18); the majority of them are much more brightly coloured
than those inhabiting more northern regions, and the species of Nautes and Tarpela
(with one or two exceptions) are fully winged. The ‘Trachyscelides, ‘ Crypticides,’
and ‘ Apocryphides’ include but few species, all of which live on the ground; amongst
the Trachyscelides is the familiar genus Phaleria, which is represented on the
Atlantic and Pacific coasts, one species being common to both. The ‘ Misolampides’
include various conspicuous genera, all confined to the forest-region, one of which,
Hegemona, with no less than eighteen species, is characteristic of the Central-American
fauna. The‘ 'Tenebrionides,’ ‘ Ulomides,’ ‘ Diaperides,’ ‘ Cnodalonides,’ and ‘ Strongy-
liides’ are all rich in species in the forest-region, more especially in the “ tierra
caliente’: the most characteristic genera are Nyctobates—the giants of the family,—
Zophobas, and Nuptis (Tenebrionides); Ulosonia, Uloma, Sitophagus, and Doliema
(Ulomides) ; Platydema—exceedingly numerous in species,—Liodema, and Hapsida
(Diaperides); Acropteron and Cyrtosoma (Cnodalonides) ; Cuphotes (= Spheniscus),
Pecilesthus, and Strongylium—the last-mentioned with no fewer than sixty-nine species
(Strongyliides), The ‘Phrenapatides’ include the Passaliform-genus Phrenapates,
peculiar to Central America and the northern part of South America, and a few small
allied forms, all of tropical distribution. The ‘ Amarygmides,’ with a single American
genus, Pyanisia, are represented by a few species, all found in or about fungi on
rotten wood, usually in gloomy places in the forest. The remaining “groups,”
the ‘ Bolitophagides,’ ‘Goniaderides,’ ‘ Heterotarsides,’ and ‘Talanides,’ require no
special comment. Of the entire family Tenebrionide, the most characteristic genera
of the Mexican and Central-American fauna, are:—of those living upon the ground,
Asida (Mexico only), Hlwodes (Mexico and Guatemala only), Husattus and Argoporis
(Mexico only), and Blapstinus ; of those living upon trees or herbage, Zopherus, Noso-

-INTRODUCTION. xix

derma, Emmenastus (excluding the apterous species), Nyctobates, Nuptis, Phrenapates,
Platydema, Hapsida, Hegemona, Isaminas, Saziches, Oxidates (Mexico only), Nautes,
Tarpela, Talanus, Paratenetus, Acropteron, Pyanisia, and Strongylium. Zopherus,
Nosoderma, Hegemona, and Osidates, all numerous in species, have their head-
quarters within our limits. The genera with the largest number of representatives
are :—<Strongylium (69), Hiewodes (60—all but one restricted to Mexico or north
thereof), Asida (55—none of which occur south of the Isthmus of Tehuantepec),
Tarpela (51), Platydema (48), Epitragus (37), Emmenastus (29), and Blapstinus (27).
Forty-one genera are known only as yet from within the limits of Central America,
but a number of these are scarcely likely to be endemic: of those that are almost
certain to extend into the northern part of South America, the following may be
mentioned :—(@atus, Isicerdes, Daochus, Arrhabeus, Mophon, Moon, and Mentes.
Seventeen genera (mostly monotypic) are peculiar to Mexico, one to Honduras, two to
Guatemala, one to Nicaragua, two to Costa Rica, and three to the State of Panama.
Of the seventeen Mexican genera, only three or four, at most, are likely to extend into
the United States, and as they have not been found in Guatemala or southwards, it is
almost certain that the majority of them are really endemic; two of these, Oxidates
and Mitys, each contain several species of large size. ‘Twenty-seven genera are common
to North, Central, and South America, twenty-eight to North and Central America
(chiefly Mexico), and forty-two to Central and South America. One genus, Hnnebeus
(group Diaperides), has a most remarkable geographical distribution, viz. :—Central
America, Colombia, and Tasmania, with two, one, and one species respectively, all very
closely allied: the only parallel case in the Heteromera known to me being Peleco-
tomoides (Rhipid ophoride), closely allied species of which inhabit Tropical America

and Australia.

The family Cistelide, which may be described as degraded Tenebrionide with
pectinate tarsal claws, is very numerous in species in Mexico and Guatemala, but
diminishes in numbers southward. From within our limits 158 species are enumerated,
belonging to twenty-four genera, of which no fewer than fifteen genera and 150 species
are described as new. ‘This is one of the ‘neglected’ families of Heteromerous
Coleoptera, and up to the date of publication of this work not a single species had
been recorded from within our limits. No attempt had hitherto been made to deal
with the Cistelid-fauna of any region, except that of Europe and of North America,
and a large number of new generic names were required for the Central-American

species. The Cistelide, as a whole, are more numerous in temperate than in tropical
c2

xx INTRODUCTION.

regions, being especially well represented in Europe, North America, South Africa,
and Australia. Prostenus, Xystropus, Lystronychus, Cteisa, and Lobopoda are charac-
teristic of the tropical regions of America—and all are represented in the Central-
American fauna, the last-mentioned by forty-six species; and Hymenorus and Cistela
of the more northern portion of the American continent. Twelve genera are known
only as yet from within the limits of Central America, seven of which are peculiar
to Mexico, two to Guatemala, and one to the State of Panama. It is probable,
therefore, that Mexico contains at least four or five endemic genera of this family.
Of the new genera described, Diopwnus, Manes, Phedius, and Erxias are the most
interesting ; Phedius, with nine representatives in Mexico, is apterous or nearly so,
and its species live beneath stones on the ground. The males of the Lobopod@ have
the genitalia highly chitinized and complex, and these organs afford excellent corrobo-
rative specific. characters, as will be seen from our Plates XVII. and XVIII.
Hymenorus is one of the most perplexing genera of the family, its species being very
numerous and closely allied.

The family Othniide is limited to a single genus, Othnius (= Elacatis, Pascoe) ;
six species occur in Central America, of which five are described as new. The genus
is a very widely-distributed one, occurring in Borneo, New Guinea, Ceylon, Japan, and
North and Central America, but with no known representative as yet from the South

American continent. Its species are of active, predatory habits, and they are usually
found running on the bark of fallen trees in search of food.

The family Nilionide, in its true sense limited to the one genus Wilio, is confined to
‘Tropical America. It contains numerous species in South America, but has only four
representatives—three of which are described as new—within our limits, where it
ranges as far north as the Mexican State of Vera Cruz. Its species greatly resemble
various Endomychide and Coccinellide; they are found about fungoid growth on
trees and are very sluggish in their movements.

The family Monommide, formerly placed in the Serricornia between the Throscidse
and the Eucnemide, is remarkable from the compact form of the exoskeleton of its
various species, resembling in this respect the Throscide and the Histeride. Three
genera only are known as yet—one, Monomma, confined to the warmer parts of the Old
World; the other two, Hyporhagus and Aspathines, exclusively American, Aspathines

INTRODUCTION. XXxi

being characterized as new in this work. Of the twelve species occurring in Central
America, eleven belong to Hyporhagus (six new) and one to Aspathines (also new).

Both Aspathines and Hyporhagus are represented in the Antilles.

The family Lagriide, with which we commence our second volume, is a very
extensive one, represented in almost all parts of the World. It has this peculiarity,
that all the American genera appear to be endemic. Liagria, the typical genus of the
Lagriide, is distributed over the greater part of the Old World, not only in the
temperate but in the tropical regions also, and it extends to Australia and Tasmania ;
yet it is altogether absent from the American continent, where it is replaced by Statira,
the largest genus of the family, and one of the most characteristic of the American
genera of Heteromera. The Central-American Lagriide greatly resemble those of
Tropical South America, and of the new genera described, Hpicydes only is likely
to be endemic. The number of species here enumerated from within our limits is
107, belonging to nine genera, of which six genera and ninety-seven species are
described as new. The majority of the species belong to Statira, which contains
hundreds of representatives in Tropical South America and extends northward into
the United States, where a few species occur; no fewer than eighty-three inhabit
Central America, of which seventy-five are described as new. ‘The other genera
contain but few species, one only, Uroplatopsis, calling for special comment. The
different species of Lagriide are found upon herbage, and they are most abundant

in the forest region.

The family Melandryide, with which the ‘Scraptiides’ and the ‘ Mycterides’ are
here merged, contains but a limited number of repre sentatives within our limits. The
various genera belonging to it are essentially wood-feeders, yet, notwithstanding the
immense amount of forest, they are conspicuous by their absence. ‘lhe Melandryide,
however, are, no doubt, chiefly confined to the temperate regions of the globe, north
and south; they are everywhere scarce within the tropics, where they seem to be
replaced by the group ‘ Diaperides’ of the Tenebrionide. From within our limits forty-
five species only are enumerated, belonging to twenty genera, and nine genera and
forty species are described as new. The group ‘ Melandryides’ is chiefly represented
by the genera Hustrophus, Hustrophopsis, Dircwa, Cuphosis, Orchesia, and Symphora ;
of these, three genera, Hustrophus, Dircwa, and Orchesia, are of wide distribution.
The group ‘ Scraptiides,’ consisting of very fragile insects of small size, is widely distri-

buted, species even occurring in Tasmania and New Zealand ; the largest known species

Xxil INTRODUCTION.

of the group inhabits Central America. The groups * Ischyomiides,’ ‘ Osphyides,’ and
‘ Mycterides’ are represented by one, two, and one species respectively; the two last-
mentioned groups belong to a northern type. Many of the genera of this family are
very widely distributed, as Zustrophus, Orchesia, Dircea, Anisoxya, Osphya, and
Mycterus ; nine, however, are described as new, of which two are from Mexico, and
one from the State of Panama, the others being of more general distribution within
our limits, two occurring also in South America. It is probable that several of them
are really endemic. Three genera are common to North, Central, and South America,

six to North and Central America, and six to Central and South America.

The family Pythide has a similar distribution to the Melandryide, but it contains a
very limited number of species. Seven only, belonging to five genera, have as yet been
discovered in Central America; of these, three genera and six species are described as
new. Lecontia (=Crymodes, Lec.) is the largest member of the family occurring
within our limits; it is a well-known insect of the boreal region of North America,
extending southward into N.W. Mexico. The other species are of small size, one
belonging to the widely distributed genus Salpingus. Of the three genera described as
new, one only, Sosthenes, is likely to be endemic. All are found under the bark of
trees.

The family Gidemeride is of considerable extent, and some of its species inhabit
mangrove-swamps or the sea-shore, where they are found about rotten stumps, piles,
&c. The Cidemeride is perhaps the most widely distributed of all the families of
Heteromera, it being represented in many oceanic islands, as well as in continental
lands. Like the Cistelide, this is a “ neglected” family, as regards the exotic species,
and up to the date of the commencement of the publication of this work not a single
representative had been described from within our limits. Ninety species, belonging
to twelve genera, are enumerated, of which five genera and eighty-four species are
described as new. Three of the genera (one introduced) are also European, and one
is certainly represented in various other parts of the World. Ovxacis, Sisenes, Copidita
Ditylus, Diplectrus, and Microtonus are the principal genera occurring in Centra
America—Oxacis and Sisenes each with upwards of twenty species; Oxacis and Copidita
have representatives in the Antilles. The four (new) genera known only as yet from
Central America are hardly likely to prove endemic.

The family Xylophilide is probably very widely distributed, at least on continental

INTRODUCTION. Xxiil

lands, but, owing to the minute size and fragility of its species, very few have been
described, beyond those of Europe, Japan, Ceylon, and N. America; the genus Xylo-
philus, however, is represented in South America, as well as in Australia. Forty-five
species are here recorded from Central America, all belonging to Xylophilus (in its
wide sense) except one, the latter forming the type of a new genus; forty-four of
these are described as new. ‘These insects chiefly inhabit the oak-woods of the high-
lands of Mexico and Guatemala, and they are characteristic of the fauna of that region,
becoming fewer in number southward ; they live upon the leaves and branches of the
oaks, especially on those with large leaves. Notwithstanding their minute size, they
are amongst the most interesting of the Central-American Heteromera.

The family Anthicide is of world-wide distribution, and it contains an immense
number of species. From within our limits ninety-three species, belonging to eight
genera, are enumerated, and of the species sixty-nine are described as new. The group
‘ Pedilides’ (from which Scraptia and Xylophilus are here excluded) includes seventeen
species, the genera Hurygenius and Bactrocerus containing some of comparatively large
size; Macratria, represented by eleven species, is very widely distributed. The group
‘Anthicides’ furnishes seventy-six species, belonging to the familiar and almost
universally distributed genera Notorus, Mecynotarsus, Tomoderus, Formicomus, and
Anthicus—Notoxus, Tomoderus, and Anthicus with sixteen, seven, and fifty-one species
respectively, the other two with one each. A considerable number of the Central-
American species were described by La Ferté in his Monograph of the Family.
Four of the N.-American genera, Stereopalpus, Tanarthrus, Nematoplus, and Pedilus
(Corphyra), the last-ementioned with a large number of species in North America and
one or two in Europe, are absent from the Central-American fauna, Six genera
are common to North, Central, and South America, and two to North and Central

America.

The family Mordellide is of great extent, but the genera belonging to it are few in
number, the bulk of the species belonging to Mordella and Mordellistena, both widely
distributed, the former being especially numerous in Tropical America and Australia,
the latter in more temperate regions. From within our limits 158 species of Mordellidee
are enumerated, sixteen belonging to the group ‘Anaspides,’ and 142 to the group
‘Mordellides ;? three genera and 147 species are described as new. ‘The ‘Anaspides,’
with four genera, are chiefly represented by Pentaria, the familiar genus Anaspis only
just entering our northern boundary. The ‘ Mordellides’ mostly belong to Mordella

XXIV INTRODUCTION.

(58 species) and Mordellistena (75 species); Tomoxia is represented by four species,
the remaining genera by one each. Two genera are known only as yet from Central
America—Naucles (Anaspides) and Cothurus (Mordellides) ; the latter is probably
peculiar to Mexico. To the list of “neglected” families, as regards the exotic species,
the Mordellide may be added, and it will be noticed that with a few exceptions the
whole of the Central-American species are described as new. Four genera are common
to North, Central, and South America, four to North and Central America, and one
to Central and South America. ‘he peculiar shape of these insects makes them
exceedingly difficult to examine, and for this reason, and also, perhaps, from the large

number of exotic species, they have been greatly neglected by authors.

The family Rhipidophoride includes a few peculiar genera, three of which enter the
Central-American fauna; one of these, Rhipidophorus (= Myodites, Latr.), is remarkable
from having the elytra greatly abbreviated, so as to leave the wings almost entirely
exposed. The total number of species recorded from within our limits is :—Pelecoto-
moides, four—three new; Emenadia, ten—two new; and Rhipidophorus, seven—six
new. Pelecotomoides is chiefly confined to Tropical America and Australia; the other
genera are of more general distribution. These insects are chiefly found upon flowers ;

some of them are parasitic upon Hymenoptera and Orthoptera.

The family Meloide is a very extensive one, and most of its species are of large size ;
it is too well known to require any special comment here. From within the limits of
Central America 160 species are recorded, belonging to seventeen genera; and thirty-
eight species are described as new. ‘The subfamily ‘Meloine’ includes ten species,
four of which.belong to Meloe, this genus extending as far south as Costa Rica. The
three other genera of this subfamily, Henous, Cysteodemus, and Megetra, represented
by three, one, and two species respectively, appear to be peculiar to the Southern
United States and Mexico. The subfamily ‘Cantharine’ includes four groups :—the
‘Horniides,’ with one genus (Leonia) and one species; the ‘ Horiides,’ with one genus
(Horia) and two species; the ‘Nemognathides,’ with three genera (Nemognatha,
Gnathium, and Zonitis), having thirteen, three, and ten species respectively ; and the
‘Cantharides.” ‘The ‘Cantharides’ are distributed amongst eight genera—Tetraonyz,
thirteen species; Hupompha, one species; Calospasta, two species; Macrobasis, fifteen
species; Gnathospusta, one species; Epicauta, forty-nine species; Pyrota, fifteen
species; and Cantharis twenty-five species. Leonia, Gnathium, Tetraonyx, Eupompha,
Calospasta, Macrobasis, and Gnathospasta are exclusively American. Numerous North-

INTRODUCTION, | KXV

American genera of Meloide are altogether absent from the Central-American fauna,
the more. temperate northern regions furnishing a greater diversity of generic types.
The Mexican species have been twice monographed by Dr. E. Dugés, but this author
appears to have been entirely unacquainted with many of the Mexican forms. One
genus (Leonia) is known only as yet from Mexico; this, however, is a very close ally of
the North-American Hornia. Seven genera are common to North, Central, and South
America, and eight to North and Central America.

From the foregoing summary it will be seen—(1) that the Mexican and Central-
American Heteromerous fauna, except as regards those genera containing apterous
species living upon the ground (Asida, Elwodes, Argoporis, &c.) and some winged
Cistelidee (Hymenorus &c.), has little to do with that of temperate North America ;
(2) that a considerable number of genera are endemic in Mexico; (3) that the fauna of
Central America south of Mexico partakes largely of that of Tropical South America.
These conclusions nearly coincide with Mr. Bates’s remarks, ‘ Biologia Centrali-
Americana,’ Coleoptera, V. p. v, on the geographical distribution of the Longicornia
of the same region. To further illustrate the distribution of the Heteromerous
genera known only as yet from within the limits of Mexico and Central America, the
following ‘Table’ is added :-—

. Of wider
Mexico. mis Guatemala Nicaragua. | Costa Rica, | Panama. distribution Total.
America.
Tenebrionide ...... 17 1 2 1 2 3 15 41
Cistelide.......... 7 wees 2 Laas Len 1 3 13
Othniide.......... Lea cee Lee Lea wees Lees
Nilionide ........ see seca
Monommide ...... Lea Leas
Lagriide .......... Lees 2 1 3
Melandryide ...... 2 eae eae 1 4 7
Pythide .......... Lee wees 1 Lee 2 3
(Edemeride ...... wee vee sae Lee 4 4
Xylophilide ...... 1 1
Anthicide ........ wee wees Lee see wee Leese wees vee
Mordellide ........ 1 Lea vee sees seas teas 1 2
Rhipidophoride ....| .... wees wees wees eae oes whee esas
Meloide .......... 1 Leese Lees Lease eee Lee wee 1
29 1 5 ‘1 2 7 30 75

The material examined consists chiefly of the extensive Mexican collections of

M. A. Sallé and Herr Hoge, and the large number of specimens obtained by myself
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, March 1893. a

XXVi INTRODUCTION.

during a four years’ residence in Guatemala and the Colombian State of Panama,
Smaller collections have been made by Messrs. Forrer, Buchan-Hepburn, and Becker
in Northern Mexico, by Mr. and Mrs. H. H. Smith in the Mexican States of Guerrero,
Vera Cruz, and Tabasco, by Mr. Gaumer in Yucatan, by Mr. J. Flohr in various parts of
Mexico, by Mr. Conradt in Guatemala, by Messrs. Belt and Janson in Nicaragua,
by Messrs. Rogers and Van Patten in Costa Rica, and by Herr E. Trotsch in the State
of Panama: all these contributing more or less to our knowledge of the fauna under
investigation. As regards the Mexican species, we are particularly indebted to
Mr. Flohr, who, from time to time, up to the moment of going to press, has sent us
specimens of all the more interesting Mexican Heteromera he has been able to obtain.

I may here state that the collection of Mr. F. Bates, by far the best collection of
Heteromera in existence, has been of the greatest assistance to me throughout, it being
especially rich in American forms. Dr, Horn, ever ready to help, has been kind
enough to communicate authentically named examples of very many North-American
species for comparison, and also to send us specimens of various North-Mexican forms ;
and in concluding these remarks I have to tender him my grateful acknowledgments.

G. C, ©.

March 18938.

LIST OF PLATES.

Plate. Fig. Page. Plate. Fig. Page
TENEBRIONIDE Nosoderma lutosum ............ II. 8 | 46
“ore gunilense ..............0, IT. 10 46
Pimeliopsis granulata............ XXII. 1 477 guatemalense.............. Il. 11 47
Trimytis obovata .............. XXII. 2 478 Insigne ............. 0000. II. 13 48
Trientoma rugifrons ............ I. 1 2,479 sparsuM...............05. II. 12 50
Mesabates latifrons ............ I. 3 3 || Areeoschizus mexicanus.......... XXII 3 491
Pescennius villosus.............. I, 6 4 || Asida sordida, var. rugosissima .. II. 1| 53,492
Scemias minuta .............6.. I. 5 5 clathrata ............000. IIT. 2| 54, 492
Mencheres elongatus ............ I. 4 6 forreri oo... .. cee eee, III. 3 55
Posides dissidens .............. I. 2 6 geminata,Q ...........0.. XXIT 8 492
Eurymetopon brevicolle.......... I. 7 7 || ——intricata,Q ......... 2.8, XXII 9 493
Emmenastus chiriquensis ........ I. 9 9 || ——suturalis ................ III. 4] 55, 494
canaliculatus .............. I. 10 10 longipennis, S ............ ITI. 5 56
foveicollis ............0065- I. 11 14 induta ........ ee ee ee eee Il. 6 56
glabratus ..............0.4. I, 8 16 | ——spinimanus .............. XXII 11 494
Schoenicus oculatus ............ I. 14 18 tenebrosa ............000. XXIT 12 495
pamamensis .............. I. 15 18 fasciculata................ XXIT 21 495
chalybeus ................ I. 16 20 scutellaris, J............0.. III. 9} 57,496
pectoralis ................ I. 17 | 21, 485 fallax....... ee eee eee, III. 8 | 57,496
Epitragus aurulentus............ I. 19 23 || —— laticollis.................. ITT. 7 | 58,496
NigricaNS ...........0000. I. 18 24 dispar *, J... . cee eee eee, III. 10 | 59, 496
bicarinatus, Q .........-.. I. 21 25 flohri...... ee eee eee eee XXII 10 496
sae is re I. 22 25 palmeri ................4. ITI. 12 59
ornatus, 9 ............ 00 I. 20 | 26, 485 Moricoides.............04. XXIT 14 497
cristatus,2 ..........000. XXII. 4 485 || —— feeda ................000. XXIT 16 498
canus,Q «eee eee eee XXIT. 5 | 34,487 tarda... .... eee ee eee eee XXII 7 498
—— plicatus ..............0.. I. 23 31 lata... eee eee eee IT. 18 60
—— cupreus ..............00.. I. 24 | 34,487 collarisf .......... 00.08. Il. 16 | 60, 499
godmani ow... .. eee eee eee I. 25 36 furcata ........0....0000.. XXII 15 499
Tydeolus atratus .............. I. 12 37 latissima ................ XXII 18 500
singularis ................ I. 13 37 | villosa... es. eee eee eee III. 13 60
Zopherus jansoni .............. II. 2 39 horrida ............-.000. XXII 13 500
costaricensis ............. IL. 1 40 unicostata .............00. XXII 19 501
—— tuberculatus .............. Il. 3 | 41, 489 difficilis .... 2... 0. ....0.0. ITI. 11} 61,501
elegans ..........0 ee eeee XXII 7 489 rufipes ......... eee eae ITI. 14 62
angulicollis ........+..... IT. 6 42 umbrosa..........02...04. Til. 17 62
nodulosus, Var. ...........- XXII 6 489 || —— blanda ...............-.. III. 19 | 63,502
-—— haldemani, var. verrucosus .. Il. 5 | 48,490 || —— sphericollis .............. II. 15 | 64, 502
compactus ......-.. eee eee IT. + 43 | —— ingens .................. XXII 20 503
Nosoderma equale............-. II. 14 44 | —— (Tisamenes) truquii ........ II. 15 | 64,491
asperatum ......+5 eee eee IT. 9 45 | —— (Ucalegon) pulchellus ...... II. 17 | 65,491
venustum ........0002000- IT. 7 45 | —— (Zaleucus) dilatatust ...... II. 24 70, 491

* Asida dissimilis on the Plate.

+ Asida marginicollis on the Plate.

+ Zamola«is dilatatus on the Plate

d 2

XXVIIl LIST OF PLATES.
Plate. Fig. Page Plate. Fig Page.
Asida (Poliorcetes) platesthoides .. II. 25 | 71,491 || Pyres speciosust, d .....---- eae ¥. 10 | 101,521
Astrotus debilis ...........00065 Il. 22 66 || Khinandrus foveolatus, d .......- V. 11 102
limosus ..........00e eee es II. 21 66 helopioides, ¢ ......-+++-> q. 12 102, 521
seticornis .........2.eeeee IL. 20 67, 504 obsoletus, G .....0+eeeeeee ¥. 15 102
undatus ........-2.e ee eee XXII 25 504 || Zophobas pedestris, ¢ .......--- Ne 16 103
nosodermoides .......+.-+> XXII 22 505 klingelhofferi, var. signatus, ° . ¥. 13 | 104, 521
Sicharbas lobatus .........20.05- II. 23 | 67,505 laticollis, So... ee ee ee eee Le 14 | 105, 522
Ologlyptus hebes .........-++-- XXII 23 506 || Tauroceras angulatum, d .....>-- V. 17 | 106, 523
sinuaticollis ..........60-- II. 19 69 || Nyctobates procerus, J ......-+-- V. 19 107
bicarinatus ........+-+5-- II. 18] 69,506 || Nuptis inquinatus, d.........+-- y, 21 | 109, 523
planatus.........-ee ee eens II. 16 | 69, 506 caliginosus, ¢ ....--eeeeeee ¥. 20 | 109, 523
Branchus obscurus........-+++6- III. 20 | 72,507 || —— validus, J ....... eee ee eee ¥. 22 110
opatroides ............ 008 XXII 24 507 tenebrosus, G «1... eee eee ¥. 23 110
Oxinthas praocioides, Q .......- III. 23| 72,507 |) GHatus chevrolati .........+-+.- y. 18 | 111, 523
Cryptoglossa mexicana .......... III. 21 73 || Hicetaon frontalis ...........+-+ VI. 8 | 112, 524
Eusattus nitidipennis............ III. 22 75 || Sthenobcea apicalis, 9 Saiki ew cinie ce Vi. ul 113
depressus .......0.e ee eens IV. 1 75 || Glyptotus nitidus ...........6-- Vv. 24 113
Eleodes eschscholtzi, J .......... III. 24 | 77,511 || Isicerdes occultus .............. VI. 2 114
spinipes, So... eee eee eee IV. 2| 77,511 || Hesiodus longitarsis, ¢ .......... VI. i 1%
exarata, Q «1... eee eee eee IV. 3 78 debilis .......... 022 eee VI. 6 ii7
amaura™®, So... ee ee ee eee IV. 4| 81,514 || Ilus apicicornis ............. a. VI. 3 118
—— Oa IV. 5 | 81,514 || Choastes purpureus$............ VI. 4 | 119, 526
rotundicollis, ¢ ........-. IV. 6 | 82,514 angulicollis .............. Vi. 5 119
— y Qe eee e eee eens IV. 7 | 82,514 || Rhacius sulcatulus.............. Vi 9 | 121, 526
curta, Goo. e ee ee ee eee IV. 8 82 quadricollis .............. VL. 10 121
suleatula ...........00005 IV. 9 | 83,514 || Blapstinus tibialis, f............ VI. 19 125
dilaticollis, ¢ «1... eee cee IV. 10 83, 515 grandis, Gd... 1... eee eee ees VI. 18 125
ponderosa, d...... eee eee IV. 11} 84,515 fortis ||, Go... cc cee eee eee VI. 16 | 125, 526
ruida, Go .. wee ee ee eee eee III. 25 | 84,515 buqueti, Sw. eee eee eee VI. 17 128
angusta, Sw... eee eee IV. 12 | 85,515 || -—— sulcipennis............-... VI. 21 129
sonore (?= vicina, Lec.), 5 .. IV. 13 | 85,516 nitidus, Gd... . ec ee eee eee Vi. 15 130
— — chihuahuensis ............ IV. 14 86 atratuS 26... ..e eee eee eee VI. 20 | 181, 528
calcarata, S 1... eee eee ee IV. 15 86 emmenastoides ............ VI. 22 131
—— erratica, J... eee ee eee IV. 16 87 || Notibius affinis, ¢ .............. VI. 11 | 132, 529
—— longicornis, ¢ ............ IV. 17 | 87,516 || Conibius brunnipes ............ VI. 12 | 133, 530
forreri, Go... eee eee eee ee IV. 18 | 88,516 || Ulus hirsutus.................. VI. 13 133
—— levigata, S «1... eee eens IV. 19 88 lineatulus .............-.. VI. 14 134
—— solierl, ¢ ...... see ee eee IV. 20 89 || Penichrus blapstinoides, g ...... Vi, 23 135
—— sallai, G 1... see e ee eee eee IV. 21 89 || Trichoton curvipes, ¢ .......... VI. 95 136
——— impolita, d ...... eee eee IV. 22 90 || Cnemeplatia laticollis............ VI. 24 136
—— higei, dose ee eee eee eee IV. 23 91 || Crypticus maculatus ............ VII. 1 | 138, 531
—— sulcata, go... cece ee eee IV. 24 | 92,517 || Daochus mandibularis .......... VIL. 2 | 140, 531
goryi(=seriata, Lec), d....| IV. | 25 93 || Peneta obtusicornis ] .......... VIL. 3 | 142, 531
Argoporis alutaceat, d.......... V. 1| 94,518 || Cleolaus sommeri .............. VIL. 4. : 142
rufipes, do... eee ee eee eee ee V. 2; 94,518 || Telchis clavicornis .............. VIL. 5 143
crassicornis, ¢ ...+.+-+-+.+- V. 3 94 || Phthora armata, d....-......... XXIII 2 Sag
atripes, Go... . eee eee eee V. 4 | 95,519 || Zypoetes epieroides.............. XXIII 3 533
cavifroms, d ..--.e eee eee V. 5 | 95,519 || Arrhabeus convexus ............ VII. 6 145
(Enopion gibbosus .............. V. 8 99 || Echocerus analis, ¢ ............ VII. vé 146
Centronopus suppressus, gd ...... V. 9 100 || Sicinus guatemalensis, ¢ ........ VIl. 10 147
bimaculatus, ¢............ XXIII 1 521 || Iccius cephalotes, ¢ ............ VIL. 8 148

* T[leodes maura on the Plate.

+ Argoporis bicolor on the Plate.

t Pyres metallicus on the Plate.

§ Choaspes purpureus on the Plate.

|| Blapstinus interstitialis on the Plate.
{| Peneta panamensis on the Plate.

LIST OF PLATES.

Plate. Fig Page. Plate Fig Page.
Iccius cylindricus, g ............ VII. 9 | 148, 534 || Platydema concolorf............ IX. 11 | 2038, 539
Alegoria salleai, g .... ......... VII. 11 | 149, 53 venustum .............05. IX. 12 204
Pheres batesi .................. VII. 12 150 || Liodema kirschi................ IX. 13 205
Uleda grossa ...............00. VIL. 13 151 zimmermani .............. IX. 14 206
Uloma mexicana, ¢ ............ VIL. 14 152 COMNEXUM ...........0 000s IX. 15 207
retusa, var. dimidiata, ¢.... VII. 15 154 || —— , Var. cruciatum ...... IX. 16 207
armata, Ji... ee eee eee VIL. 16 154 S€ITICOING ........ 0.00 ee ee IX. 17 207
spinipes, ¢ ..........000. VIL. 17 155 flavo-variegatum .......... IX. 18 208
—— divergens, d.............. VII. 18 155 || Stenoscapha jalapensis .......... IX. 19 208
Doliema frontalis, g¢ ............ VIL. 24 159 || Paniasis dilatipes, Gg ............ IX. 22 209
angustata, d.......... 000. VII. 25 159 || Lelegeis eneipennis, ¢ .......... IX. 23 210
Sitophagus fuliginosus, ¢ ........ VIII. 1 161 || Cosmonota nigripes ..........:. IX. 20 210
dilatifrons, ¢ ............ VII. 22 162 pubescens ........-....0.. IX. 21 210
Ulosonia dejeani, ¢ ............ VIL. 19 165 || Hapsida chrysomelina, 9 ........ IX. 24 211
Metulosonia reflexa ............ VII. 20 | 166, 536 seriato-punctata, Q ........ Ix, 25 212
Phayllus minutus .............. VIL. 21 167 terebrans, Oo... see. eee IX. 26 | 214, 539
ARsymnus nitidus, d............ VIL. 23 168 boucardi, 9, var........... IX. 27 215
Mophis marginicollis ............ VIII 3 169 a IX. 28 215
cyneoides* .............. Vill 2 | 162, 536 | Gonospa phedonoides, § ........ IX. 29 217
Corticeus rufipes, ¢ ............ VIII 4 171 || Enneboeus uniformis ............ XXIII 4 540
pallidipennis .............. VIII. 5 173 | Phaleria guatemalensis .......... X. 1 | 218, 541
erassicornis .............. VIII 6 173 dytiscoides................ X. 2 | 218, 541
Arrhenoplita clavicornis, g¢ ...... VU 7 176 || -—— neotropicalis .............. X. 3 220
distans, Go... . ee eee eee VIII 8 178 inmsularis ................ X. 4 | 221, 541
cioides, ¢ ....... 0... eee VIII 9 180 || Bycrea villosa, ¢ ............4. X. 5 | 222, 541
Saptine ovata ...........0-0005. VII 10 181 || Scaptes tropicust .............. X. 6 | 223, 542
Platydema excavatum, f ........ Vill 11 | 184, 538 || Xenius scabripennis ............ X. 7 224
undatum, ¢ ..........66.. VIII 13 185 || Calymmus variegatus............ X. 8 225
9 VAT., Qo Lee eee ee VIII 14 | 185 || Ozolais verrucosa .............. X. 9 226
rodriguezi, ¢ ............ VIII 15 185 lutosa .. kee X. 19 227
—— mexicanum .............. VIII 12 187 elongata, ¢ ...... cece eee X. 11 228
diophthalmum ............ VIII 16 | 193,538 || Goniadera oculata .............. X. 12 230
transversum .............. VIII 17 194 nicaraguensis ............ X. 13 230
bisignatum .............. VIII 18 195 || —— pilosa.................05. X. 14 230
hOVeL .. eee ee eee VIII 19 | 195, 588 alternata, J... eee eee ee X. 15 | 231, 542
sexnotatum .............. VIII 20 196 || Xanthicles caraboides .......... X. 16 232
guatemalense ............ VIII 21 197 || Aimymone crenata.............. XXIII. 5 542
——ornatum ................ VIII 22 197 || Aneedus villosus...........,.... XXIII. 6 543
pretiosum ................ VIIl 23 197 mexicanus................ X. 17 234
panamense................ VIII 24 198 marginatus .............. X. 18 236
tibiale ........ 02.00.00 Vil 25 198 apicicornis................ X. 19 236
y 26, —— brevicollis, ¢ ............ X. 20 236
—— 15-maculatum ............ VIII. 2” } 198 setulosus ................ X. 21 | 237, 544
nigromaculatum .......... IX. 1,2 199 || Paratenetus tibialis, f .......... X. 22 | 239, 544
Dreve ..... cee ee ee eee Vill. 28 200 nigricornis, ¢ ..........4. XXIII. 7 544
—— versicolor ..........0 eee IX, 3 200 ruficornis, g.........0000. X. 23 239
tricolor ..............000. IX. 4 200 villosus, ww... eee ee eee X. 24 240
-—— biplagiatum .............. IX. 5,6} 201, 539 constrictus, ¢ ............ XXII. 8 546
—— dimidiatum .............. IX. 7 202 tuberculatus, ¢ .......... X. 25 242
——- elegans .................. IX. 8 202 denticulatus, Q............ X. 26 243
lucens .......-.-..0-0.-- Ix. 9 202 sexdentatus, d.........2.. XXITI 9 546
cordovense...........2000- IX, 10 | 203, 539 || Cyrtosoma denticolle ............ XI. 1 244

* Sitophagus (?) cynceoides on the Plate.

+ Platydema unicolor on the Plate.

t+ Scaptes syuamutatus on the Plate.

PLATES.

XXX
Plate
Cyrtosoma decem-lineatum ...... XI.
Othryoneus erotyloides .......... XI.
Camaria parallela, J............ XI,
Blapida neotropicalis, ¢ ........ XI.
Mophon tinctipennis, g.......... XI.
Epicalla varipes, G ....-------s XI.
we bd sipise tee eeaseens XI.
cupreo-nitens ...........- XI.
Moeon panamensis, Q .......... XI.
Acropteron belti, ¢ ....-..-.0e XI.
miklini, 6 «1... .. eee ee eee XI.
agriloides, J.......e se eee XI.
calearatum, SJ .......eeeee XI.
longipenne, ¢ ............ XI.
——- mexicanum, oO .... eee XI.
Ischyomius singularis .......... XI.
Pseudapocrypha lacordairii ...... XI.
Saziches subcaudatus, ¢ ........ XI.
Oxidates planicollis, ¢ .......... XI.
princeps, ¢ ..........000- XI.
gibbus ....... eee ee ee eee XXIII.
Mitys inflatus...............04. V.
politus* .............00. V.
Isaminas gibbipennis, Q ........ XI.
Hegemona bicaudatus, 2 .... XI.
compressus, J ........00.. XII.
lineatus, ¢ ...... ee eee eee XI.
—— niger, d .... eee ee eee eee XII.
—— zunilensis, 2 .............. XI.
—— angustatus, S .........0.. XII.
—— chiriquensis, 2............ XII.
—— guatemalensis, 2 ......... XI.
costaricensis, Q .......... XII.
interruptus, 2 ............ XII.
Nautes fervidus, Q ............ XII.
tinctus, Qo... ... eee eee XII.
belti, Doe. eee eee eee eee ee XII.
varlans, Go... . eee eee ee XII.
—— antennatus, d ............ XII.
—— breviceps ................ XII.
—— striatipennis, ¢ .......... XII.
— chrysomeloides, ¢ ........ XII.
—— versicolor, 2 ...... cece eee XII.
—— leviventris, 9 ............ XII.
nitidissimus, g............ XII.
nodulosus, ¢ .......e.00e XII.
enoplopoides, ¢ .......... XII.
Tarpela tenuicornis, 2 .......... XII.
pulchra, ¢ wwe. ee ee ee eee XXIII.
ineequalis, d..........000- XII.
torrida, S.... eee ce ee eee XII.
corpulenta.............00 XII.
—— thoracica ................ XII.

LIST OF
Fig Page.
2 244
3 246
4 246
5) 247
6 248
7 249
8 250
9 250
10 251
11 253
12 254
13 | 255, 547
14 255
15 256
16 256
17 | 259, 548
18 260
22 262
19 264
20 | 265, 548
10 548
7 97
6 {530
520
21 267
24 | 270, 549
1 271
23 271
2 271
26 272
3 272
4 | 2738, 549
25 274
5 275
6 275
7 278
8 279
9 280
10 | 281, 550
11 281
12 282
13 | 283, 551
14 234
15 284.
16 285
17 286
18 287
19 287
20 289
12 501
21 290
22 291
23 292
24 293

Plate. Fig. Page.
Tarpela catenulata, ¢ «1. ee eeee XXIII. cee 552
Gontata.. ..-4 ene a ese Gaes ss EGE i 25 293
foveipennis .....-++++-+.- XII. 26 294
exiMid, 0 .-e0e4 sean ee ees XIII 1 295
Verepacis, do... eee ee eres XIII 2 995
gtYR ices cages eeosa ees XIII é 296
sotigera, Q .... seca cerns XI 4 297
SOCIA, Go ew Ghee cere et es XIII 5 299
hispidula .......-----++5- XII 6 299
subparallela, g.....-+++.+-- XIII 7 | 300, 554
fallax, 2 occ gece dese ees XIII. 8 301
cupreo-viridis, J ....++-+.. XIII 9 | 302, 504
tropicalis, J 1... eee ee ees XIII 10 304
subvittata, Q ...-. eee eee XIII ii 305
depressa, S sss. sree eeee XIII 12 | 306, 555
——- crassipes, ow... ee ee eee ee XIII 13 306
allardi .... eee eee eee eee XIII 14 307
——amabilis ..........+----- XIII 15 308
silvicola, ¢ «1... ee eee eee XIII 16 309
fragilicornis, ¢.......+.--- XIII 17 309
cisteliformis, .........-.- XIII 18 310
totonicapamensis, Q........ XIII 19 311
docilis ....... eee ee eee eee XIII 20 312
Helops gracilicornis, 2 .......... XII 21 313
cavifrons, 2 ........++.--. XII ve 313
exsculptus, Sw... eevee. XIII 23 314
rugiceps, So .....e ee eee eee XIII 24 315
coxalis, dw... eee eee eee ee AL. 25 B17
enitesceMS ...... 0.00 ee eee XXIII. | 13 557
panamensis, J ...... esas XII 26 319
——- sumptuosus, d ....--..e ee. Aili. 27 320
Mentes ruficollis, Q ............ XXIII. | 14 599
fusiformis, Q ............ XXIII. | 15 560
Talanus neotropicalis, ¢ ........ XIV. 1 | 322, 561
laticeps, Fw. ee ee ee ee eee XIV. mS 325
guatemalensis, g .......... XIV. 3 326
apterus, Dd... .... see eee eee XIV. = 328
Pyanisia longicollis ............ XIV. 5 331
Cuphotes jansoni, 9 ............ XIY. 6 333
unicolor, G wee. e eee eee XIV. 7 334
Peecilesthus nigropunctatus, ¢ ... XTY. 8 336
variipes, Gwe ee ee eee eee XIV. 9 337
fragilicornis, Q............ XIV. 11 338
— 5 Oy VAL. fe ee eee eee ee XIV. 12 338
laticollis, Q ...........0.. AIV. . | 18 339
immaculatus, ¢ .......... XIV. 13 340
—— leviceps, 9 ...........0.. XIV. 14 340
miaklini, S «1... eee ee eee XIV. 15 341
cupripennis .............. XXIII 47 562
Strongylium maculicolle, ¢ ...... XIV. 16 342
hopfneri, ¢ ..........000, XIV. 17 343
—_—— , var. pectorale, g...... XIV, 18 343
—— chontalense, 9 ............ XIV. 19 344
gibbum, ¢ ...... eee XIV. 20 344

* Mitys levis on the Plate.

LIST OF PLATES.

Plate. Fig. Page. Plate. Fig
Strongylium clavicorne .......... XXIII. | 16 562

cine XIV. | 23 345 CIsTELIDE.
—— semistriatum.............. XV. 1 345 || Lobopoda gigantea, Q .......... XVII. 1
—— excavatum, d ............ XV. 2 | 346, 563 asperula, GS wo... ee eee eee XVII. 2
———- canaliculatum, 9 .......... XV. 3 346 || —— acutangula, § (cedeagus)... XVII. 3
—— viridipes, ¢ ...........4.. XV. 4 347 tristis, ¢ (edeagus)....-... XVII. 4
lgnitum, ¢ wo... eee eee XV. 5 348 mexicana, d....... eee eee XVII. 5
—— tinctipes, 2 .........0.... XV. 6 349 calcarata, Go... eee ee ees XXIII. 23
—— exaratum, 9 .............. XV. 7 350 || —— panamensis, S ............ XVIL.. 6
—— fossifrons, gd ..........+44. XV. 8 351 || —— mucronata, Q .......-.... _ XVII. 7
——— varlicorne, 9 .............. XV. 9 352 || —— apicalis, J (cedeagus) ...... XVII. 8
costaricense, d .........00. XY. 10 353 || —— atrata, 5 (cedeagus)........ XVII. 9
-—— conicicolle, 2 ............ XIV. 25 354 || —— subparallela, ¢ (cedeagus) XVII. 10
colombianum, 2 .......... XV. 11 354 || —— seriata, ¢ (cedeagus)........ XVII. 11
—— langurioides, 9 ............ XV, 12 355 || —— convexicollis, ¢ (cedeagus) . XVII. 12
—— ventrale, 2 .............. XVI. 1 356 || —— oblonga, ¢ (cedeagus) ...... XVII. 13
eribripes, Q ........ ce eee XIV. 24 356 puncticollis, ¢ .........0.. XVII. 14
frontale, Q .......-...... XV. 13 357 || —— yucatanica, 5 (cedeagus) ....} XVII. 15
—— gerstaeckeri, 9............ XIV. 22 357 || -—— attenuata, ¢ (cedeagus) XVII. 16
—— Viriditinctum, 9 .......... XVI. 4 359 tropicalis, ¢ (cedeagus)...... XVII. | 17
eminens, Q .... ..... cee XIV. 21 359 femoralis, J... ee ee eee eee XVII. 18
auratum, Sd ...........0.. XVI. 2 360 teapensis, ¢ (cedeagus) XXIII. | 24
——atrum, gd ....... eee ee XV. 14 360 || —— simplex, ¢ (vedeagus) ...... XVII. | 22
opacipenne, d ............ XV. 15 361 || —— opaca, Sw... ee eee eee eee XVII. 23
bivittatum, ¢ ............ XV. 16 361 || —— hirta, g (cedeagus) ........ XVII. 19
aulicum, Q oo... . cee eee XV. 17 362 || —— sculpturata, ¢ ............ XVII. 20
decoratum, 2,var. ........ XV. 18 363 || —— leevicollis, Gd .... 0... ee eee XVII. 21
panamense, 2 ............ XV. 19 363 proxima, ¢ (cedeagus) ...... XVIII. 1
nitidiceps, Q.............. XV. 20 364 jalapensis, 3 (cedeagus) ....| XVIII. 2
——— Varlans, 9................ XY. 21 365 || —— parvula, ¢ (cedeagus) ...... XVIII. 3
—— > O, Var. we. ee XV. 22 365 minuta, ¢ (ceedeagus) ...... XVIII. 4
—— misantle, dg ...........0.. XY. 23 367 tenuicurnis, ¢ ....... ee eee XVIII. 5
—— -—, d, var. ....... eee XVI. 3 367 || —— viridis, d ...... se. cee eee XVIII. 6
cinctum, Q ...........08, XV. 24 368 || —— foveata, Di... cece eee eens XVIII. 7
marginale, Q ............ XV. 25 368 || ——nitens, Q ...... ec. cee eee XVIII. 8
suturale, ¢ ........ eee eee XVI. 5 368 || —— irazuensis, ¢...-.......--- XVIII. 9
curticorne, ¢ «we. eee ee XVI. 6 369 || —— viridipennis, g ............ XVIII. 10
ramosum, ¢ ........42000. XVI. 7 369 || —— eneipennis, ¢ (edeagus)....| XVIIT. | 11
—— blandum, 2 .............. XVI. 8 370 || —— cariniventris, ¢ (cedeagus) ..| XVIII. 12
impressicolle, J .......... XVI. 9 370 || —— obsoleta, § (cedeagus) ...... XVIII. | 13
armatum, var., Q.......... XVI. 10 371 glabrata, J... eee eee eee XVIII. | 14
brevipes, GS «1... ee ee eee XVI. 11 372 || Temnes ceruleus, ¢ .........0-- XVIII. 15
gregarlum, @ ...........4. XVI. 12 373 || Allecula castaneipennis, Q ...... XVIII. | 16
carinipenne, d .........0.. XVI. 13 374 rugicollis, d ... eee ee eee XVIII. | 17
—— punctipes, J .......-...0.. XVI. 14 375 verepacis, Q...... 2. eee eee XVIII. | 18
—— subcostatum, ¢ .....-.... XVI. 15 375 ferox, So cece cece eee eens XVIII. | 19
apicicorne, Sw... ee ee eee XVI. 16 376 gaumeri, ¢ (cedeagus) ...... XVIII. | 20
fragile, G wo. eee ee ee eee XVI. 17 377 pilipes, do... eee eee eee XVIII. 21
Otocerus dilaticornis, ¢.......... XVI. 18 378 belti, Qo. cc eee ee ee eee XVIII. 22
torole, Sov... ee eee eee eee XVI. 19 378 depressa, So .... eee eee eee XIX. 1
nicaraguensis, .......... XVI. 20 379 opacipennis, ¢ (cedeagus) XIX. 2
interruptus, Q ............ XVI. 21 380 angustata, ¢ (edeagus) ....| XIX. 3
hamatus, S ........e0.0e, XVI. 22 381 laticeps, Qo... ee eee eee eee XIX. 4
MICTOPS ..... ee ee ee ee eee XVI. 23 381 || Alethia sallai, ¢ ..........080. XIX. 5
impressipennis, 9 .......... XVI. 24 382 longipennis ...........+.- XIX. 6
Pseudotocerus attenuatus, 9 ..:... XVI. 25 383 subnitida, gd .....- ee eee XIX. 7
——- azteca, J wns. cece eee eee XIX. 8

395,

400,

402,

394
394

564

396
397

398

403

412

418 |

XXXll LIST OF PLATES.
Plate Fig Page Plate. Fig Page.
Alethia lepturoides, ¢ .......--- XIX. 9 419 || Cistela decepta, 5 (cedeagus)...... XX. 23 454
hégei, 3 (cedeagus) ........ XIX. 10 420 chiriquensis, ¢.....-+++-++- XX. 24 454
Theatetes basicornis, ¢ .......+.- XIX. 11 420 delitescens, ¢ (cedeagus) .... XX. 25 455
Charisius fasciatus, 6 .......-.. XIX. 12 421 || —- occulta, GD iveee eter ence eres XX. 26 455
a LC XIX. 13 421 ovipennis, do... eee ee eee XXIII. | 19 569
picturatus, G6... ee ee eee XXIII. | 21 565 || —— alternans, d ...+-++++++++- XXI, 1 456
zunilensis, G.....-. eee eee XIX. 14 422 fragilicornis, 9 ........++-- XXI. 2 457
salvini, Go... eee ee ee ee eee XIX. 15 423 || Isomira obsoleta, ¢ ...-.--- cers XXI. 3 457
Narses subalatus, ¢ .........-.- XIX 16 424 subeenea bene e eee eens XXI. 4 458
Hymenorus occidentalis, ¢ ...... XIX. 17 425 || Erxias violaceipennis, re XXI. 5 460
brevicornis, ¢ (cedeagus) . XIX. 18 426 || Prostenus panamensis, 5 ....--.- XXI. 6 46]
tarsalis, ¢ (eedeagus) ...... XIX. 19 426 || Lystronychus piliferus .......... XXI. 7 462
oculatus, S .......- ee eee XIX. 20 427 purpureipennis ...........-- XXII. 8 463
sordidus, ¢ (cedeagus) ...... XIX. 22 427 scapularis, ¢ «1. sees sree XXI. 9 463
——- PIN], Swe. eee eee ee eee XIX. 21 428 || Xystropus californicus*.......... XXI. 10 | 464, 570
flohri .... eee eee eee XIX. 23 429 fallax... cece eee ee ee XXI. 11 464
tibialis, Go... ee eee eee eee XIX. 24 430 lebasi..... 0. ee eee eee XXI. 12 465 |
hispidulus, ¢ (cedeagus) .. XX. 1 431 || Cteisa pedinoides ...........--. XXI. 13 | 465, 570
foveiventris, ¢ (cedeagus) .. XX. 2 432
similis, j (cedeagus)........ XX. 3) 432 .
badius, ¢ (wedeagus)........ XX. 6 | 483, 566 vEENDe
longicollis, ¢ ............ XX. 3 | 434,566 |) Othnius senecionis.............. XXI. 14 467
colonoides ............2-- XX. 4 435 antennalis, ¢ ..... eee eee XXI. 15 467
brevipes, ¢ 2... ... eee eee XX. 7 435 multiguttatus ............ XXI. 16 468
ruficollis ...........-.8.. XX. 8 438 intricatus ..........0.008- XXI. 17 468
guatemalensis ............ XX. 9 439 || —— mexicanus, Q ............ XXI. 18 469
villosus, Q .....e. ee ee eee XX. 10 440 sticticopterus.............. XXI. 19 469
deplanatus, ¢ ............ XX. 11 440
Manes angusticollis ............ XXIII 20 567 Nunroxw x
Polyidus meridionalis, ¢ ........ XX. 13 442 °
Menes meridanus .............. XX, 12 442 || Nilio thomsoni ................ XXI. 20 47]
Menceceus crassicornis, d........ XX. 14 444 chiriquensis .............. XXI. 21 471
eequalis, So... eee ee eee ee XX. | 15 44d
Diopcenus compressicornis, ¢ XX. 16 445 M
Pitholaus helopioides, ¢ ........ XX, 17 446 ONOMMID 28.
Amaropsis annulicornis, Q ...... XXIII. | 18 568 | Hyporhagus opuntie ............ XXI. 22 473
Phedius chevrolati, Q .......... XX. 18 447 durangoensis.............. XXI. ao 473
hirtus, Q ..... ee eee eee XXII. | 26 568 || —— emarginatus, d............ XXI. 24 474
carbonarius, 9 ............ XX. 19 448 || —— obliteratus................ XXI. 25 475
eylindricollis, Q .......... XX. 20 449 | ——suturalis ............0... XXIII. | 22 571
Telesicles cordatus.............. XX, 21 451 ferrugineus .............. XXIII. | 25 571
Cistela nigricornis, ¢ .......... XX. 22 452 || Aspathines ovatus .............. XXI. 26 476

* Xystropus fulgidus on the Plate.

ANXIY

ERRATA ET CORRIGENDA.

Page Line

3 14 after atratus insert (Tab. I. fig. 12.)

37 37 after singularis insert (Tab. I. fig. 13.)
71 + dele the words scutellum broad, triangular.
71 24 for Ticomavaca read Tecomavaca.

83 24,35 for 2 read S.
91 28 for ii. read iii., and for 1830 read 1834.
92 22 for ii. read iii.
93 7 for Rinconado read Rinconada.
93 13 for Tempico read Tampico.
103 37 for Klingenhéffer read Klingelhéffer.

108 1 for Derilis read Deriles.

150 28 for includes read include.

158 23 for This is the smallest read This is one of the smallest.
184 26 before Horn insert Platydema excavatum.

194 5 for rather coarsely read very finely.

222 3 for Matamoras read Matamoros.

239 40 for 2 read 8.

334 36 before Lac. insert Spheniscus cinctus.

561 35 for héfpnert read hdpfnere.

494 1 for figg. 15, 3 read figg. 16, S.

458 33 for Mexico read GuaTEMALA.

496 18 for Asida dispar (p. 59) read 20. Asida dispar.
511 7 for obsoletus read obliteratus.

522 5 for Karsch read Kirsch.

543 27 for interstitialis read punctatissimus.

550 38 for incilis read stabilis,

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.,

Class INSECTA.

Order COLEOPTERA.
Tribe HETEROMERA.

Fam. TENEBRIONIDA.
Subfam. TENTY RIIN A.

Under this subfamily are included those species in which the ventral segments are
entirely corneous (without a coriaceous hind margin to the third and fourth), and the
intermediate coxee without trochantin. ‘The coriaceous hind margin to the third and
fourth ventral segments, though apparently of trivial importance, appears to be a good
character, and the different groups may be readily separated by it. The arrangement
is the same as that used by Leconte and Horn for the North-American species.

Group TENTYRIIDES.

This group will include Leconte and Horn’s tribes Gnathosiini and Thinobatini, the
former represented in our country by Zriorophus and Trientoma, the latter by Lury-
metopon and Emmenastus; and some genera of doubtful position, one or two of which
will not fall satisfactorily into any of the groups, tribes, or subfamilies proposed by
Lacordaire, Leconte, or Horn.

The Tentyriides are very poorly represented in Central America, the winged species
of Emmenastus alone being at all numerous.

TRIOROPHUS.

Triorophus, Leconte, Ann. Lyc. New York, v. p. 141 (1852) ; Lacord. Gen. Col. v. p. 34 (1859) ;
Horn, Revis. Ten. N. A. p. 258 (1870); Lec. & Horn, Class. Col. N. A. p. 362 (1883).

Four species from the Southern States of North America (from Arizona, Texas,
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1884. BB

2 HETEROMERA.

and California) constitute this genus; two of these species occur also within our
boundary. og :

They are found beneath stones in arid districts.

A closely allied genus (Stidia, Horn) is also found in California.

1. Triorophus levis.
Triorophus levis, Lec. Ann. Lyc. New York, v. p. 141'; Horn, Revis. Ten. N. A. p. 259(1870)*;

Lac. Genera, t. 48. f. 4.
Triorophus rugiceps, Lec. loc. cit. p. 142°.
Hab. North America 123%, Tejon in California to the western base of the Rocky
Mountains in Arizona.—MeExico, Northern Sonora (Morrison).

2. Triorophus nodiceps.
Triorophus nodiceps, Lec. Proc. Acad. Phil. vi. p. 447*; Horn, Rev. Ten. N. A. p. 259 (1870) ’;
Thoms. Arcana, i. t. 13. f. 7.

Hab. Norra America 12, Texas.—Mexico, Monclova in Coahuila (Dr. Palmer).

Two examples from Monclova agree fairly well with the description of 7. nodiceps,
except that they have the anterior angles of the thorax a little more acute and

swollen.

TRIENTOMA.
Trientoma, Solier, Ann. Soc. Ent. Fr. iv. p. 256, t. 5. f. 7-10 (1835) ; Lac. Gen. Col. v. p. 35 (1859).

Two species of this genus are recorded from Cuba and St. Domingo; others from the
West Indies, undescribed as yet, exist in collections, and we now have to add two from

Mexico.
Allied genera (Triphalus and Trimytis) occur in North America.

1. Trientoma mexicana.

Ovate, smooth, dull black, opaque. Head almost impunctate, coarsely wrinkled on each side; prothorax
strongly transverse, widest just before the base, slightly rounded at tho sides, narrowed in front, smooth ;
elytra with nine rows of very indistinct almost obsolete rounded punctures, the punctures a little more
distinct towards the sides, obsolete behind and towards the suture.

Length 6-7 millim.

Hab. Mexico (coll. F. Bates).

Two examples. Extremely close to T. sal/@i from St. Domingo, and only differing
therefrom by being a little more opaque, the sides of the thorax straighter, and the
antenne not quite so stout.

2. Trientoma rugifrons. (Tab. I. fig. 1.)

Black, shining. Head strongly trilobed in front (the middle lobe of the epistoma long and the lateral lobes
swollen and prominent), coarsely and closely punctured, and strongly wrinkled longitudinally on each

MESABATES.—PESCENNIUS. 3

side; prothorax strongly transverse, broadest at the base, feebly rounded at the sides, narrowed from the

base to the obtuse front angles, closely and finely punctured; elytra rather long, a little wider than the

thorax at the base, with nine rows of shallow rounded punctures distinct to the apex, the outer row

almost obsolete, the interstices very finely, closely, and almost imperceptibly punctate ; antenne stout.
Length 8 millim.

Hab. Mexico (coll. F. Bates).

One example. Closely allied to a nondescript species from St. Domingo.

MESABATES.

Mentum transverse, subangular at the sides, narrowly emarginate in front, and closely fitting to the toothed
broad side pieces of the submentum; mandibles not toothed on the upperside, bifid at the apex, promi-
nent and clasping the projecting labrum; ligula completely hidden; maxillary palpi stout, the last joint
narrowly triangular; head very broad, the central lobe of the epistoma almost truncate and slightly
deflexed in front, the lateral lobes rounded, very prominent and projecting in front as far as the central
lobe; eyes transversely oval, partly divided by the lateral lobes, sharply carinated within; prothorax
transverse, about twice as broad as long, rounded at the sides, as wide as and fitting closely to the elytra;
elytra convex, smooth, with rows of fine punctures; antenne long and stout, second and fourth joints
subequal, third half as long again as the second, fifth to tenth about equal in length, but widening out-
wardly, ninth and tenth almost transverse, eleventh smaller, rounded; legs rather short and stout; inter-
coxal process pointed in front; the tarsi with short stout, spiny, hairs beneath, not sulcate; prosternum
narrow, declivous behind; epipleure narrowing from the shoulders, distinct almost to the apex; scutellum
very small, transverse; metasternum short, impressed in the middle; middle coxal cavities closed
externally.

One species from Mexico. I know of no very near ally to this; the general form is
not unlike a small Pachychila. It may be known from its allies in the Thinobatini and
Gnathosiini, Horn, by its very broad head ; it is perhaps best placed in the latter group,
the epistoma being trilobed.

1. Mesabates latifrons. (Tab. I. fig. 3.)

Oval, rather broad, dull black, rarely reddish brown. Head closely but not very finely punctured (a little more
closely along the anterior margin), broadly impressed transversely in front, the vertex with two small
rounded tubercles ; prothorax transverse, the angles obtuse and almost rounded, narrowing from the broadest
part a little before the base to the front, slightly narrowed behind, base very feebly bisinuate and almost
straight, anterior margin broadly but feebly emarginate, closely and finely punctured, the disc with a short
impressed line in front extending to the anterior margin; elytra as wide as the thorax at the base, the
base almost straight, two and a half times as long as the thorax, slightly rounded at the sides, scarcely
widening from the base, with regular rows of very fine shallow punctures distinct to the apex. Beneath
slightly shining, closely and rather coarsely punctured, the ventral segments with longitudinal scratches
and finer punctures.

Length 7-73 millim.

Hab. Mexico, Tehuacan (Hége), Puebla (Sad/é).

Sent in some numbers by Hoge.

PESCENNIUS.

Mentum small, transverse, angular at the sides, truncate in front, fitting closely to the short triangular side
pieces of the submentum; mandibles sharply toothed on the upperside, bifid at the apex; labrum almost

BB 2

4 HETEROMERA.

hidden in repose, clasped by the mandibles; ligula scarcely visible; head broad, feebly trilobed, almost
rounded in front, the epistoma a little produced, rounded, and deflexed in the middle, the lateral lobes
rounded and a little swollen but not prominent; prothorax very short and transverse, closely fitting to the
elytra; elytra ovate, with regular rows of coarse punctures, the apices finely mucronate, villose ; antenne
long, thin, third joint about half as long again as the second, fourth to eighth decreasing in length, ninth
to eleventh larger and broader, the ninth and tenth triangular, the eleventh ovoid ; apical joint of maxillary
palpi narrowly and feebly triangular; legs short, the tarsi stout, densely clothed with short hairs beneath ;
metasternum short; intercoxal process pointed in front; prosternum very narrow, declivous behind, not
contiguous to the mesosternum ; epipleure rather broad at shoulders, narrowing behind and not reaching
the apex; eyes almost rounded; scutellum transverse, very small; intermediate coxal cavities closed
externally.

Founded upon one Mexican species. This genus is allied to Hurymetopon, Trimytis,
and Emmenastus, though differing greatly from all of them in the structure of the
antenne, and by its hairy clothing; allied also to Hdrotes and more distantly to
Amphidora &c., which are similarly clothed with long hairs. The legs are compa-
ratively short and stout. The antenne long, with the last three joints distinctly

larger.

1. Pescennius villosus. (Tab. I. fig. 6.)

Ovate, brown or brownish black, slightly shining, clothed with short yellowish decumbent hairs, and the elytra
in addition with long erect pale yellowish hairs. Head coarsely and closely punctured, the vertex longi-
tudinally rugulose; prothorax convex, with very coarse rounded impressions placed close together and
more or less confluent, strongly transverse, feebly rounded at the sides, widest just before the base, a little
narrowed anteriorly to the slightly prominent front angles, slightly impressed transversely before the
almost truncated base, the anterior margin broadly but feebly emarginate; elytra a little wider than the
thorax, rounded at the sides, widest about the middle, very convex, with rows of deep rounded impressions
distinct to the apex, the impressions close together, the first two rows turning off obliquely towards the
shoulders near the base and making room for a very short scutellar row ; interstices flat, finely and sparingly
punctured, humeral angles obtuse, base almost straight. Beneath reddish brown, shining, with large
rounded very coarse punctures, the abdomen towards the apex more sparingly and finely punctured.
Legs and antenne red.

Length 6 millim.

Hab. Mexico, Tehuacan (Hoge).
Found in plenty by Hoge.
SCEMTAS.

Mentum rather large, transverse, slightly angular at the sides, closely fitting to the short side pieces of the
. submentum, very coarsely punctured; mandibles with a strong tooth on the upperside; labrum not
prominent, almost hidden by the epistoma; maxillary palpi stout, short, last joint broad oval; ligula not
visible ; head broad, feebly trilobed in front, the central lobe of the epistoma rounded and slightly deflexed,
lateral lobes rounded, not swollen or prominent; eyes large, rounded, not carinated within; prothorax
transverse, convex, coarsely punctured, closely fitting to the elytra; elytra ovate, rounded at the sides
strongly convex, with scattered appressed hairs, and regular rows of coarse punctures; antennx short,
thickening a little outwardly, last joint oval, smaller than preceding; legs short and stout, tarsi stout,
with short spiny hairs beneath ; intercoxal process rather broad, rounded at the apex ; epipleurze distinct
throughout, narrowing from the shoulders; intermediate coxal cavities closed externally ; scutellum small,
transverse.

One inconspicuous species from Mexico. Semias is allied to Trimytis, but with the

SC@2MIAS.—MENCHERES. 5

epistoma very feebly trilobed and almost rounded in front, the elytra with scattered
rows of appressed hairs, the eyes not carinated within, &c; from Emmenastus it may be
known by the shorter and stouter legs.

1. Semias minuta. (Tab. L. fig. 5.)

Oval, convex, black, shining, slightly pubescent. Head coarsely and closely punctured; prothorax transverse,
convex, rounded at the sides, a little wider behind than in front, widest just before the base, angles
obtuse but little prominent, base feebly bisinuate, coarsely and closely punctured, indistinctly impressed
transversely behind just with the basal margin; elytra slightly wider than the thorax at the base, rounded
at the sides, widest about the middle, convex, with regular rows of coarse punctures distinct to the apex,
the interstices flat, almost impunctate, with scattered indistinct appressed greyish hairs. Legs and
antenne red. Beneath reddish brown, shining, with scattered rather coarse punctures.

Length 3-33 millim.

Hab. Muxico, Cordova (Sallé).
Five examples.

MENCHERES.

Mentum transverse, angular at the sides, truncate in front, and closely fitting to the side pieces of submentum ;
mandibles sharply toothed on the upperside, truncate at apex; maxillary palpi stout, apical joint narrowly
and feebly triangular; labrum not very prominent, clasped by the mandibles; ligula entirely concealed ;
epistoma a little produced in the middle, broadly rounded in front, the lateral lobes rounded but little
swollen; prothorax transverse, closely fitting to the elytra, lateral and basal margins a little thickened and
reflexed; elytra long, with regular rows of punctures and short appressed hairs; antenne thickening a
little towards the apex, third joint half as long again as the second, fourth to seventh decreasing a little
in length, eighth to tenth subtriangular, eleventh narrower ovoid; legs moderate; intermediate and pos-
terior tarsi long, basal joint of latter about equal in length to the fourth joint, all the tarsi beneath clothed
with short stiff hairs and the last joint feebly sulcate; metasternum long; intercoxal process acuminate
and pointed in front (elongatus), or narrow, shorter and rounded in front (ncaraguensis); prosternum
narrow, declivous behind; epipleure distinct, narrowing from the shoulders, obsolete a little before the
apex; scutellum small, transverse; eyes rounded ; intermediate coxal cavities closed externally; ventral
segments corneous.

One species from Guatemala and one from Nicaragua will constitute this genus.
Allied to Emmenastus, from which it may be known by its more strongly margined
thorax, trilobed front, the rows of short hairs on the elytra, &c.; also superficially
resembling certain Blapstinus and allies. Mencheres might be placed in either of the
groups Thinobatini or Gnathosiini. The head is feebly trilobed in front.

1. Mencheres nicaraguensis.

Oblong oval, reddish brown, convex, pubescent, slightly shining, apterous. Head coarsely and not very closely
punctured ; prothorax rather convex, somewhat coarsely and closely punctured, transverse, rounded at the
sides, widest about the middle, lateral margins a little thickened and narrowly reflexed, narrowed in front
to the slightly prominent obtuse front angles, very slightly narrowed behind, hind angles rectangular, base
strongly bisinuate, closely fitting to the elytra, and the margin a little raised, narrowly reflexed and promi-
nent in the middle, the disc slightly impressed transversely behind just in front of the basal margin ;
elytra with regular rows of rounded punctures distinct to the apex, the punctures close together and the
rows more distinct outwardly [a little indistinct towards the suture], interstices flat with fine scattered
punctures, and each with a row of short appressed yellowish hairs, long, convex, a little rounded at sides,
a little wider than the thorax at the base, humeral angles obtuse, base bisinuate. Beneath shining, with

6 HETEROMERA.

coarse rounded punctures, ventral segments sparingly but not very finely punctured; metasternum longi-
tudinally impressed in the middle. ‘
Length 8-9 millim.

Hab. Nicaracua, Chinandega (Sallé), Chontales (Beit).

Two examples. These specimens differ slightly inter se: the elytra are a little more
parallel in the Chinandega individual and the interstices more distinctly punctured.

2. Mencheres elongatus. (Tab. I. fig. 4.)

Elongate oval, convex, reddish brown, pubescent, slightly shining. Head rather convex, coarsely and sparingly
punctured in front, more finely behind; prothorax rather convex (especially in front), rounded at the
sides, transverse, very slightly narrowed and sinuate behind to the subacute hind angles, narrowed a little
in front to the rather prominent acute anterior angles, base strongly bisinuate, slightly impressed trans-
versely near the base just within the slightly raised margin, closely and finely punctured; elytra about
three times as long as the thorax, a little wider than the thorax at the base, slightly rounded at the sides,
humeral angles obtuse, with regular rows of rounded punctures (more distinct outwardly), the interstices
flat with scattered fine punctures distinct towards the suture, obsolete at the sides, and each with a row of
short appressed yellowish hairs. Beneath shining; ventral segments sparingly and finely punctured, the
rest somewhat coarsely and sparingly punctured ; metasternum faintly impressed longitudinally down the
middle.

Length 9 millim.

Hab. Guatemata, El Jicaro in Vera Paz (Champion).

Two examples. Closely allied to M. nicaraquensis, but longer, the intercoxal process
acuminate and pointed in front, the thorax a little more finely and more sparingly
punctured, &c.

POSIDES.

Mentum rather large, transverse, slightly angular at the sides, feebly emarginate in front, closely fitting to the
side pieces of the submentum; mandibles strongly toothed on the upperside, the tooth on the right side
strong and stout, that on the left short and slightly pointed, the lower longer lobes broad and truncate at
the apex; maxillary palpi stout, apical joint broad oval; labrum almost completely and mandibles in
greater part hidden by the epistoma; ligula entirely concealed; head short and broad; epistoma broad,
almost truncate in front, a little produced triangularly in the middle and deflexed, lateral lobes rounded,
not prominent, slightly impinging on the eyes behind; eyes large, rounded, carinated within; prothorax
transverse, convex, strongly margined, the front angles rather prominent, strongly bisinuate at the base,
and fitting closely to the elytra, coarsely punctured; elytra convex, oblong-ovate, with regular rows of
deep coarse punctures; antenne rather long, not very stout, third joint half as long again as the second,
fourth to eighth decreasing in length and oboval, ninth and eleventh broader, subtriangular, eleventh
rounded ; legs short, tarsi stout, densely clothed with hair beneath; intercoxal process rounded in front;
epipleuree narrow, distinct to the apex; scutellum small, transverse; intermediate coxal cavities entirely
closed externally ; prosternum narrow, decliyous behind.

One species from Mexico. Superficially resembling somewhat the genus Helops.

1. Posides dissidens. (Tab. I. fig. 2.)

Oblong oval, very convex, dark reddish brown or black, shining, apterous. Head dull, strongly impressed
transversely in front with a few scattered fine punctures; prothorax transverse, convex, impressed trans-
versely along the base, rounded at the sides, equally narrowed in front and behind, lateral and basal
margins and the slightly prominent subacute anterior angles a little raised and prominent, base strongly

POSIDES.—EURYMETOPON. 7

bisinuate, front margin broadly but feebly emarginate, hind angles rectangular, very coarsely and closely
punctured at the sides, more sparingly and finely along the middle, the spaces between the punctures very
finely and sparingly punctate; elytra long, convex, rounded at the sides, widest about the middle, scarcely
wider than the thorax at the base, with regular rows of very coarse rounded impressions distinct to the
apex, interstices flat with scattered very fine punctures. Beneath shining, with large, very coarse, rounded
impressions, the ventral segments towards the apex sparingly and finely punctured.

Length 10-11 millim.

Hab. Mexico, Puebla (Sallé), Tehuacan (Hoge).

Found in some numbers by Hoge.

EURYMETOPON.
Eurymetopon, Eschscholtz, Zool. Atl. iv. p. 8 (1831); Lac. Gen. Col. v. p. 66 (1859); Horn, Rev.
Ten. N. A. p. 267 (1870); Lec. & Horn, Class. Col. N. A. p. 363 (1883).
Cryptadius, Lec. Ann. Lye. New York, v. p. 140 (1851).

Some half-dozen North-American species constitute this genus; we have now to record
two from Mexico. The winged species of Emmenastus and Eurymetopon are stated to
occur beneath bark of Prosopis or mesquit; those without wings under stones.

1. Kurymetopon rufipes.

Eurymetopon rufipes, Eschsch. Atlas, iv. p. 8, t. 18. f. 1 (1831)*; Mann. Bull. Mose. ii. p. 264;
Horn, Rev. Ten. N. A. p. 267 (1870)’.

Eurymetopon abnorme, Lec. Ann. Lyc. New York, v. p. 138°.

Hab. NortH America, Colorado desert *, Arizona ?, California :—Muexico, Northern
Sonora (Morrison).

Apparently common in Sonora.

2. Hurymetopon brevicolle. (Tab. I. fig. 7.)

Oblong ovate, brownish black, slightly shining, winged. Head dull, the vertex sparingly and finely punctured;
the epistoma broad, truncate in front, separated on each side from the lateral lobes by an oblique impres-
sion, anterior margin reddish, a little more coarsely and closely punctured ; prothorax strongly transverse,
rounded at the sides, but little narrowed behind, widest a little behind the middle, somewhat strongly
narrowed in front, the angles sharp triangular, hind angles rectangular, base slightly bisinuate and almost
straight, finely and rather closely punctured, with an indistinct central raised line; elytra wider than the
thorax at the base, slightly rounded at the sides, three times as long as the thorax, with indistinct rows
of fine punctures, the interstices flat, with scattered very fine punctures and some slight traces of trans-
verse wrinkles. Legs and antenne red.

Length 84 millim.

Hab. Mexico, San Pedro in Coahuila (Dr. Palmer).

One example. Allied to #. sodale, Horn, and the head formed as in that species,
but larger, and the thorax broader behind, less rounded at the sides, less convex, and
yery short in proportion to the length of the elytra.

8 , HETEROMERA.

EMMENASTUS.
Emmenastus, Motschulsky, Bull. Mose. i. p. 75 (1845); Lac. Gen. Col. v. p. 59 (1859) ; Lec. Class.
Col. N. A. p. 214 (1862) ; Horn, Rev. Ten. N. A. p. 268 (1870) ; Lec. & Horn, Class. Col. N. A,
p. 862 (1883).
Eurymetopon, Eschsch., Lec. Ann. Lyc. New York, v. p. 138 (1852).
Hylocurus, Chev. MS.

Some nine or ten species of this genus have been described from the Southern States
of North America; many others are found in Central America, but none apparently
have been described from that country till now. The southern range of the genus is
probably in Colombia. Some closely allied smaller forms occur in Chili. Emmenastus,
as recognized here, will include only the New- World species; it is not unlikely that the
genus will have to be divided eventually. Some of the winged species with long meta-
sternum have the mandibles toothed above; several have the anterior margin of the
thorax slightly emarginate on each side near the angles, immediately behind the eyes,
thus allowing the head to be withdrawn still deeper into the thorax; while others from
Guatemala, southwards, are very convex, and have a distinct deep fovea on each side of
the base of the thorax. The apterous species have the base of the thorax almost
straight. ‘The head quarters of the genus will be in Central America. The winged
species are very numerous, and apparently not of wide distribution; of apterous forms
we only know as yet of some few Mexican species allied to those of North America.
While in North America the apterous species are more numerous than those with wings,
the reverse is the case in our territory.

The winged species are found by beating herbage and the leaves of fallen trees, they
also frequently come to light; the others beneath stones. The different species are
very closely allied and form a difficult study. Two winged species are recorded from
North America, one of which (£. longulus, Lec.) occurs in our country, the other
(£. texanus, Lec.) is unknown to me; besides these and those from Central America,
there are in Mr. F. Bates’s collection two undescribed winged species* labelled respec-
tively as from “ California” and “ Pensacola ;” both, I suspect, are of Mexican origin.

* Emmenastus ellipticus.—Of a different form from any other species of the genus known to me. The thorax
and elytra taken together are of a regular elliptic, oval, convex form, equally narrowed in front and behind;
reddish brown in colour, winged; the head coarsely and closely punctured; the prothorax, though broader
than long, is comparatively longer than in the allied species, strongly rounded at the sides, widest behind,
narrowed in front, anterior angles subacute and a little prominent, the base strongly bisinuate and the margin
a little raised in the middle, sparingly and rather finely punctured on the disc, the punctuation closer and
coarser at the sides, within the basal margin on each side about the middle is a short transverse impression ;
the elytra about the width of the thorax, convex, with regular rows of coarsish punctures, distinct to the apex,
the interstices finely and rather closely punctured. Length 6 millim. One specimen in Mr. F, Bates’s collection,
labelled coll. Laferte, Pensacola, Mex. (Guérin). As far as I am aware, there is no place of this name in Mexico,
though there is in Florida.

E, vicinus.—A small, convex, winged species near Z,. tenebrosus in form, but much smoother and smaller ;

EMMENASTUS. 9

Sect. 1. Winged Species.

1. Emmenastus longulus.
Eurymetopon longulum, Lec. Ann. Lyc. New York, v. p. 188°.
Emmenastus longulus, Horn, Rev. Ten. N. A. p. 269 (1870) ’.

Had. Norta America, San Diego! in California?, Arizona ?.—Mexico, Northern
Sonora (Morrison).

2. Emmenastus chiriquensis. (Tab. I. fig. 9.)

Winged, oblong ovate, convex, reddish brown or black, shining. Head coarsely and rather closely punctured ;
prothorax transverse, convex, sides almost straight behind near the base, rounded and narrowed in front,
hind angles rectangular, front angles slightly pointed and a little prominent, base strongly bisinuate and
with a short feeble shallow oblique impression on each side and rarely a slight impression in the centre in
front of the scutellum, anterior margin emarginate and sinuate on each side near the angles just behind
the eyes, rather coarsely and closely punctured along the sides, more sparingly and finely in the middle ;
elytra with regular rows of coarse punctures distinct to the apex, the interstices with scattered fine punc-
tures; intercoxal process long, acuminate at the apex, and passing beyond the hind coxe; metasternum
long; mandibles toothed on the upperside; legs and antenne red.

Length 7-8 millim.

Hab. Panama, Volcan de Chiriqui, Tolé, Taboga Island (Champion).—CoLomB1a,
Bogota (coll. Bates).

Rather common in Chiriqui at an elevation of from 2000 to 4000 feet, and found by
beating herbage.

3. Emmenastus longicornis.

Winged, elongate oval, black, shining. Head with two feeble impressions between the eyes, the front rather
coarsely and closely, the vertex a little more sparingly punctured; prothorax transverse, convex, rounded
at the sides, a little narrower in front than behind, base strongly bisinuate, coarsely and closely and almost
equally punctured, a little more sparingly punctured in the middle behind, slightly impressed transversely
in front of the scutellum; elytra long, almost parallel to beyond the middle, with regular rows of coarse
punctures distinct to the apex, the interstices with exceedingly fine scattered punctures; antenne and legs
dark reddish brown, the former rather long.

Length 8 millim.

Hab. Guatemata, San Gerénimo (Champion).

One example. Allied to E. chiriquensis, but narrower, the thorax more coarsely
punctured and more narrowed behind, and the antenne a little longer.

reddish brown in colour, slightly shining; the head closely and rather coarsely punctured; prothorax convex,
rounded at the sides, narrowed in front, the sides very feebly sinuate before the rather acute anterior angles, a
little narrowed behind, hind angles obtuse, base bisinuate, finely and closely punctured, the punctures confluent
at the sides, a small rounded impression behind in front of the scutellum; elytra convex, a little wider than the
thorax at the base, with indistinct but regular rows of fine punctures to the apex; interstices finely and rather
closely punctured. Length 53 millim. One specimen in Mr. F. Bates’s collection, labelled: Calif. ex coll.
Laferte.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1884. CC

10 HETEROMERA.

4. Emmenastus variabilis.

Winged, oblong ovate, convex, reddish brown or black, shining. Head coarsely and closely punctured; pro-
thorax transverse, convex, narrowed in front, rounded at the sides, sides nearly straight behind in front of
the rectangular hind angles, front angles slightly acute, base strongly bisinuate, anterior margin feebly
emarginate and sinuate on each side near the angles just behind the eyes, closely coarsely and almost
equally punctured, the punctures a little finer and more scattered in the middle; elytra with rows of fine
punctures distinct to the apex, the interstices finely and somewhat confusedly punctured ; legs and antenne
red; mandibles toothed above; metasternum long.

Length 7-83 millim.

Hab. Mexico (coll. F. Bates), Tuxtla, Playa Vicente (Sal/é), Almolonga (Hdége),
Presidio (Forrer) ; Honpuras (Sal/é).

Labelled Hylocurus dermestoides in the Sallé collection.

A common species in Mexico, and found by Hoge in plenty at Almolonga. Some
individuals are more coarsely and closely punctured than others; one from Presidio has
the rows of punctures on the elytra much finer. Apparently a variable species, it may
be known from £. chiriquensis by its more evenly punctured thorax, and its finer and
less regular rows of elytral punctures. :

5. Emmenastus canaliculatus. (Tab. I. fig. 10.)

Winged, oblong ovate, not very convex, reddish brown or black. Head rather coarsely and closely punctured ;
prothorax comparatively short, transverse, not very convex, narrowing from the base to the front, widest at
base, hind angles rectangular, front angles scarcely pointed and almost obtuse, base bisinuate, sides slightly
rounded, closely and somewhat coarsely and evenly punctured, the punctures a little more scattered in the
middle, with a short smooth impressed line in the middle at the base; elytra a little wider than the
thorax at the base, with rows of fine punctures distinct to the apex, the interstices with finer scattered
punctures, the punctures a little more distinct at the margins and at the apex; legs and antenne red.
Beneath rather closely punctured.

Length 8-9 millim.

Hab. Mexico, Presidio (Forrer).

Four examples. This species may be known from its allies by its less convex form,
and its comparatively short (and feebly canaliculated) thorax.

6. Emmenastus brevipennis.

Winged, oblong ovate, rather broad, not very convex, black, shining. Head coarsely and closely punctured ;
prothorax transverse, not very convex, widest just before the base, slightly rounded at the sides, but little
narrowed behind, narrowed in front to the scarcely prominent obtuse angles, hind angles obtuse, base
bisinuate, closely coarsely and almost equally punctured, the punctures a little confluent towards the
sides; elytra a little wider than the thorax, not very convex, comparatively short, with rows of rather

coarse punctures distinct to the apex, the interstices with scattered fine punctures; legs and antenne
reddish brown; intercoxal process rounded in front.

Length 7 millim.
Hab. Mexico, San Blas (forrer).

One example. ‘This species may be known from £. variabilis and allies by its shorter
form. The elytra are comparatively very short.

EMMENASTUS. 11

7. Emmenastus solitarius.

Winged, oblong ovate, convex, reddish brown, shining. Head coarsely and rather closely punctured; pro-
thorax transverse, convex, rounded at the sides, widest just before the base, scarcely narrowed behind,
hind angles subrectangular, narrowed in front to the rather sharp front angles, anterior margin feebly
emarginate and sinuate on each side near the angles just behind the eyes, base bisinuate, coarsely closely
and subequally punctured, the punctures a little confluent at the sides; elytra a little wider than the
thorax at the base, convex, with rows of coarsish punctures distinct to the apex, the interstices coarsely
punctured, the rows of punctures a little indistinct towards the suture, distinct at the sides; mandibles
toothed above; intercoxal process pointed in front.

Long. 73 millim.

Hab. Mexico, Tepanistlahuaca (Saé/é).

One example. This species may be known by its rather coarse uniform punctuation.
The punctures of the interstices of the elytra but little finer than those of the strie.

8. Emmenastus belti.

Winged, oblong ovate, dark reddish brown or black, shining. Head with the anterior margin closely, the
vertex sparingly and coarsely punctured; prothorax transverse, a little longer than in the allied species,
convex, rounded at the sides, widest just before the base, a little narrowed behind, the hind angles rect-
angular, narrowed and rounded in front to the slightly pointed front angles, anterior margin feebly
emarginate and sinuate on each side near the angles just behind the eyes, base strongly bisinuate and with a.
short oblique feeble impression on each side near the middle, unequally punctured, the sides rather coarsely
and confluently, the disc sparingly and finely; elytra a little wider than the thorax at the base, some-
what rounded at the sides, with rows of fine punctures, the interstices finely and sparingly punctured; legs

and antennw red; mandibles toothed above; intercoxal process pointed in front.

Length 7-8 millim.

Hab. Nicaracua, Granada, Chinandega (Sallé), Chontales (Be/¢).

Allied to E. variabilis, but shorter, the thorax a little less transverse, and more
unequally punctured &c.

9. Emmenastus rotundicollis.

Winged, oblong ovate, reddish brown, shining. Head coarsely and closely punctured; prothorax broad, trans-
verse, convex, strongly rounded at the sides, widest a little before the base, slightly narrowed behind to
the obtuse hind angles, narrowed in front to the subacute front angles, anterior margin on each side feebly
emarginate and sinuate near the angles just behind the eyes, base bisinuate and feebly impressed trans-
versely on each side near the middle, closely coarsely and almost equally punctured, the punctures a
little confluent at the sides; elytra the width of the thorax at the base, with rows of rather coarse
punctures (somewhat indistinct towards the suture) distinct to the apex, the interstices with scattered fine
punctures; legs and antennx red; intercoxal process pointed in front; mandibles toothed above.

Length 73 millim.

Hab. Mexico (coll. F. Bates).

One example. This species is labelled Hylocurus dermestoides, Chev.; £. variabilis
also bears the same name in the Sallé collection. E. rotundicollis may be known from
all the species here recorded by the strongly rounded sides (especially behind) of its
comparatively broad thorax.

CC 2

12 HETEROMERA.

10. Emmenastus parallelus.

Winged, elongate oval, moderately convex, reddish brown or black, rather dull. Head closely and coarsely
punctured ; prothorax transverse, not very convex, widest behind, a little narrowed in front, the anterior
angles somewhat prominent and subacute, hind angles rectangular, closely, rather coarsely, and subequally
punctured, the punctures a little confluent at the sides, the base feebly bisinuate; elytra scarcely wider
than the thorax, the sides rather straight, with rows of fine punctures distinct to the apex, the interstices
finely and sparingly punctured ; antenne and legs red; intercoxal process pointed in front.

Length 7-73 millim.

Hab. Mexico (coll. F. Bates).

Two examples. Allied to EL. longulus, Lec., but more parallel, duller, the thorax
relatively larger and broader and more evenly punctured; in one of these examples the
sides of the thorax are a little less rounded in front, and the anterior angles more acute
and prominent.

11. Emmenastus intermedius.

Winged, oblong ovate, very convex, black, shining. Head with the anterior margin closely, the vertex
sparingly and coarsely punctured; prothorax strongly convex, moderately transverse, widest before the
base, sides nearly straight just in front of the rectangular hind angles, but little narrowed behind, rounded
and narrowed in front to the slightly acute angles, anterior margin sinuate and emarginate on each side
within the angles and just behind the eyes, somewhat coarsely and confluently punctured at the sides,
more finely and widely punctured in the middle, base bisinuate and with a feeble triangular impression on
each side near the middle ; elytra convex, the width of the thorax at the base, with rows of fine punctures
distinct to the apex, the interstices with scattered not very fine punctures, the rows of punctures not so
regular or distinct towards the suture; legs and antenne red; mandibles strongly toothed above ; inter-
coxal process pointed in front.

Length 74 millim.

Hab. Guatemata, Izabal (Sallé); Honpuras (Sal/é).

Two examples. This species may be known by its comparatively long, convex, broad
thorax, its generally convex form, and the somewhat coarse punctuation of the inter-
stices of the elytra.

12. Emmenastus tenebrosus.

Winged, oblong ovate, convex, reddish brown or black, shining. Head closely and rather coarsely punctured ;
prothorax convex, rounded at the sides, transverse, widest a little behind the middle, slightly narrowed
behind to the obtuse subrectangular hind angles, narrowed in front and feebly sinuate before the rather
prominent front angles, the base bisinuate, coarsely closely and regularly punctured, the punctures
confluent at the sides, a small shallow rounded impression in the centre near the base; elytra scarcely
wider than the thorax at the base, somewhat rounded at the sides, convex, with rows of not very coarse
punctures distinct to the apex, the interstices somewhat coarsely and regularly punctured, the punctures
in rows midway between the strie; legs and antenne reddish brown ; intercoxal process slightly rounded
in front.

Length 54-6} millim.

Hab. Mexico, Guanajuato (Sal/é).

Seven examples. In one or two of these specimens the sides of the thorax are a little
more rounded towards the front and not feebly sinuate, and the anterior angles more

EMMENASTUS. 13

obtuse. Narrower and more convex than EL. solitarius, the thorax narrowed behind and
more rounded at the sides, and the elytra not nearly so coarsely punctured ; narrower,
smaller, and more convex than #. rotundicollis, the thorax especially narrower, the
rows of punctures of the elytra finer and not so distinct. .

Of the form of Eurymetopon rufipes, but smaller ; it may be known from all the species
of Emmenastus here recorded, excepting L. solitarius and E. rotundicollis, by its closely,
coarsely, and evenly punctured thorax, in which respect it resembles EF. teranus, Lec.

13. Emmenastus alatus.

Winged, oblong ovate, convex, black, shining. Head coarsely and rather closely punctured ; prothorax convex,
moderately transverse, widest behind, scarcely narrowed at the base, rounded and narrowed in front to the
subacute anterior angles, hind angles rather obtuse subrectangular, base bisinuate and feebly impressed on
each side near the middle just within the margin, coarsely closely and rather unequally punctured, the
punctures scattered in the middle, confluent at the sides, anterior margin feebly emarginate on each side
just behind the eyes; elytra a little or scarcely wider than the thorax at the base, convex, with rows of
coarsish punctures distinct to the apex, interstices closely and rather coarsely punctured; legs and antennze
red; intercoxal process rather pointed in front; mandibles toothed above.

Length 7-73 millim.

Hab. Guatemaua, near the city (Salvin).

Three examples. Larger, longer, and a little more convex than E. salvini, and with
the thorax a little longer and less transverse.
I did not myself meet with this species, nor with L. salvini.

14. Emmenastus salvini.

Winged, oblong ovate, moderately convex, black. Head closely and rather coarsely punctured; prothorax
transverse, not very convex, widest behind, narrowed and rounded in front, scarcely narrowed behind,
angles rather obtuse and not prominent, anterior margin fecbly emarginate on each side near the angles,
base bisinuate and feebly impressed on each side near the middle just within the margin, rather coarsely
and closely punctured, the punctures confluent at the sides; elytra a little wider than the thorax at the
base, with rows of fine punctures distinct to the apex, interstices rather closely and finely punctured; legs
and antennze red; mandibles toothed above; intercoxal process pointed in front.

Length 64 millim.

Hab. GUATEMALA, near the city (Salvin).

Four examples taken by Mr. Salvin near the Cerro del Carmen are all I have seen of
this species.

Of the form of E£. canaliculatus, but much smaller, the hind angles of the thorax
more obtuse, the punctuation of the elytra finer, &c.

15. Emmenastus ambiguus.

Winged, oblong ovate, very convex, black, shining. Head coarsely but sparingly punctured; prothorax trans-
verse, convex, rounded at the sides, widest behind, narrowed in front to the rather obtuse anterior angles,
hind angles rectangular, the base bisinuate and with a short oblique obsolete impression on each side about
the middle, with scattered rather coarse punctures, the punctures finer and more distant in the middle,
coarser at the base, and a little confluent at the sides; elytra convex, the width of the thorax at the base,
a little rounded at the sides, with rows of coarsish punctures distinct to the apex, the interstices flat and

14 | HETEROMERA.

finely and sparingly punctured, the punctures more numerous and distinct towards the suture at the base ;

legs and antenne reddish brown.
Length 53 millim.

Hab. Panama, La Caldera in Chiriqui (Champion).

One example. Of the convex form of the EZ. foveicollis group, but with the thoracic
fovere obsolete, and represented by short, oblique, shallow impressions; it is nearest
allied to E. confusus.

16. Emmenastus guatemalensis.

Winged, oblong ovate, very convex, dark reddish brown or black, shining. Head coarsely and closely punc-
tured; prothorax transverse, convex, widest at the base, the sides rounded and narrowed in front to the
obtuse anterior angles, the hind angles rectangular, coarsely closely and regularly punctured, the
punctures but little finer towards the middle and scarcely confluent at the sides, base bisinuate; elytra
with regular rows of coarse punctures distinct to the apex, the interstices somewhat coarsely punctured ;
antenne and legs dark reddish brown; mandibles toothed above ; intercoxal process slightly rounded
in front.

Length 5-6 millim.

Hab. Guatemata, Zapote, San Gerdnimo, Capetillo, Duefas (Champion), Izabal
(Sallé).

Resembling somewhat in its convex form E. foveicollis and allies, but without the

deep thoracic fovee.

17. Emmenastus foveicollis. (Tab. I. fig. 11.)

Winged, oblong ovate, very convex, dark reddish brown or black, shining. Head coarsely but not very closely
punctured; prothorax very convex, transverse, strongly rounded at the sides, a little narrowed behind to
the acute hind angles, narrowed in front to the rather obtuse anterior angles, base bisinuate and the margin
raised and with a deep triangular fovea on each side about the middle, the fovee sharply and abruptly
defined outwardly, more or less connected inwardly by a central transverse basal impression, closely
coarsely and unequally punctured, the punctures somewhat confluent at the sides, scattered on the disc, the
central part of the base between the fovex very sparingly punctured and almost smooth; elytra about the
width of the thorax at the base, rounded somewhat at the sides, very convex, with rows of coarse punc-
tures distinct to the apex, interstices finely and confusedly punctured; legs and antenne red; intercoxal
process pointed in front; mandibles toothed above.

Length 53-63 millim.

Hab. GuaTEMALA, near the city, Aceytuno (Salvin), Panajachel, Duefias, San Gerénimo,
Capetillo (Champion); Nicaragua, Granada (Sallé) ; Costa Rica, Irazu (Rogers).

Of a different facies from the preceding species, from all of which it may be at once
known by its convex form and deep thoracic fovee. The single example from Nicaragua
differs a little from the numerous individuals from Guatemala in having the thorax a
little smoother and longer, the elytra a little broader and a little more rounded at the
sides, and the interstices more finely punctured. The specimen from Costa Rica is
more typical, but with the rows of elytral punctures coarser. This species is rather

EMMENASTUS., 15

common in Guatemala, and found by beating herbage &c., and sometimes coming to

light at night.

18. Emmenastus confusus.

Weed, oblong ovate, convex, dark reddish brown or black, shining. Head coarsely and somewhat closely
punctured ; prothorax transverse, convex, widest behind, rounded at the sides and narrowed in front, the
anterior angles rather obtuse and scarcely prominent, hind angles rectangular, the base bisinuate, a narrow,
deep transverse triangular fovea (sharply defined outwardly) on each side about the middle just within
the raised basal margin, somewhat coarsely closely and regularly punctured, the punctures finer and more
scattered on the disc towards the base and sometimes a little confluent at the sides; elytra the width
of the thorax at the base, convex, a little rounded at the sides, with rows of punctures (coarse at the
sides, finer and closer towards the suture) distinct to the apex, interstices flat with rather regular rows of
punctures almost as coarse as those of the strize towards the suture and sparingly irregularly and very
finely punctured at the sides; legs and antenne reddish brown; mandibles sharply toothed above.

Length 6-7 millim.

Hab. GuateMaLa, Zapote, Coatepeque, Capetillo, El Tumbador (Champion).

Allied to EL. foveicollis, but less convex, a little flatter above, the elytra differently
punctured ; it may be known from both E. foveicollis and E. levicollis by its narrower
and more transverse thoracic basal foveee. Found by beating herbage.

19. Emmenastus levicollis.

Winged, oblong ovate, very convex, dark reddish brown or black, shining. Head coarsely but sparingly
punctured; prothorax convex, transverse, widest at the base, the sides rounded and narrowed in front,
anterior angles obtuse and scarcely prominent, hind angles distinct and rectangular, the base bisinuate, a
deep triangular fovea (sharply defined outwardly) on each side about the middle just within the raised
basal margin, the base between the fovese with a central shallow transverse impression, with scattered
rather coarse punctures, the disc more sparingly and finely punctured and almost smooth towards the
base, sides with larger coarser punctures which are rarely confluent; elytra convex, about as wide as the
thorax at the base, slightly rounded at the sides, with rows’ of coarse punctures distinct to the apex, the
interstices flat and sparingly and very finely punctured; legs and antenne reddish brown; mandibles
toothed above; intercoxal process pointed in front. .

Length 5-64 millim.

Hab. Panama, Tolé, Volcan de Chiriqui, Caldera, Pefia blanca (Champion).

Closely allied to E. foveicollis, but with the thorax and the interstices of the elytra
smoother and more sparingly and finely punctured; the thorax less convex, broader
behind, and less strongly rounded at the sides. On herbage.

Sect. 2. Apterous Species.
20. Emmenastus mancus.

Apterous, oblong ovate, moderately convex, dark reddish brown or black, rather dull. Head coarsely and
closely punctured; prothorax transverse, convex, widest behind before the base, narrowed in front, the
anterior angles a little prominent, hind angles rectangular, closely subequally and rather coarsely punc-
tured, the punctures a little confluent at the sides, base bisinuate, the disc slightly impressed near

16 HETEROMERA.

the base; elytra rather long, convex, a little rounded at the sides, about the width of the thorax, with

rows of very fine punctures distinct to the apex, the interstices with scattered finer punctures ; legs and

antenne red. Beneath coarsely punctured, metasternum long, intercoxal process pointed in front.
Length 63-7 millim.

Hab. Mexico, Puebla (Sallé), Tehuacan (Hége).

Three examples. Of the form of some of the winged species (E. longulus, &c.) ;
narrower and longer than any of the apterous species known to me.

21. Emmenastus glabratus. (Tab. I. fig. 8.)

Apterous, oblong ovate, convex, black, shining. Head coarsely and closely punctured; prothorax transverse,
moderately convex, widest behind, narrowed in front, anterior angles obtuse and a little prominent, hind
angles obtuse, the base nearly straight, closely evenly and rather coarsely punctured, the punctures a
little confluent at the sides; elytra convex, a little wider than the thorax at the base, with regular rows
of coarse punctures distinct to the apex, the interstices finely and sparingly punctured; legs and antennz
reddish brown.

Length 7-8 millim.

Hab. Mexico (coll. F. Bates), Tehuacan, Oaxaca (Hége).

Taken in numbers by Hoge at Tehuacan: Larger, broader, and not so closely punc-
tured as E. obesus, Lec., from New Mexico &c., the punctures of the elytral stricee much
coarser.

22. Emmenastus curtus.

Apterous, ovate, very convex, black, rather dull. Head very closely and coarsely punctured ; prothorax trans-
verse, strongly convex, rounded at the sides, widest just before the base, narrowed in front, the angles
obtuse, base nearly straight, very closely regularly and rather coarsely punctured, the punctures a little
confluent at the sides, feebly impressed transversely before the base; elytra a little wider than the thorax
at the base, very convex, rounded at the sides, somewhat closely regularly and coarsely punctured, with
rows of scarcely coarser punctures, distinct at the sides, obsolete towards the suture and not reaching the

apex. Beneath shining, coarsely punctured; intercoxal process pointed in front. Legs and antenne
reddish brown.

Length 5-6} millim.
Hab. Mexico (coll. F. Bates), Tehuacan (Hoge).

Taken in some numbers by Hoge. This species is comparatively shorter, broader,

and more convex than any of the apterous species here described. The thorax is very
closely and evenly, and almost confluently punctured.

23. Emmenastus lentus.

Apterous, oblong ovate, convex, dark reddish brown, shining. Head reddish brown, coarsely and closely
punctured, rugulose; prothorax reddish brown, convex, transverse, widest just before the base, a little
narrowed behind, narrowed in front, but little rounded at the sides, the anterior and posterior angles
obtuse, the base straight, closely regularly and somewhat finely punctured, the punctures confluent at
the sides; elytra convex, a little wider than the thorax at the base, slightly rounded at the sides,

EMMENASTUS. 17

with irregular rows of rather fine punctures, the punctures finer or indistinct towards the suture and at

the apex, the interstices finely and equally punctured.
Length 74 millim.

Hab. Mexico, Monclova in Coahuila (Dr, Palmer).

One example.

24, Emmenastus rugicollis.

Apterous, oblong ovate, convex, black, rather dull. Head closely and coarsely punctured, longitudinally
rugulose; prothorax broad, transversely convex, rounded at the sides, widest a little before the base, very
slightly narrowed behind, narrowed in front, anterior and posterior angles obtuse and not prominent, very
closely regularly and somewhat coarsely punctured, the punctures longitudinally confluent, a central
shallow impression behind near the base, the base almost straight; elytra about the width of the thorax,
convex, closely and rather coarsely punctured, with indistinct rows of coarser punctures not reaching the
apex, and distinct only at the sides, obsolete towards the suture; legs and antenne reddish brown.

Length 6 millim.

Hab. Mextco, San Luis Potosi (Dr. Palmer).

One example.

25. Emmenastus pulvinatus.

Apterous, oblong ovate, convex, dull reddish brown or black, the upper surface covered with scattered fine
powdery-like scales, rather shining. Head broadly, shallowly, and transversely impressed in front,
coarsely and closely punctured; prothorax transverse, convex, rather strongly rounded at the sides,
widest a little before the base, narrowed in front, a little narrowed behind, the angles obtuse, closely
evenly and rather finely punctured, the punctures a little confluent at the sides, base nearly straight ;
elytra about as wide as the thorax, convex, rather short, somewhat rounded at the sides, with indistinct
rows of fine punctures obsolete towards the suture and scarcely reaching the apex, the interstices closely
and finely punctured; legs and antenne red. Beneath reddish brown, shining, coarsely punctured ;
intercoxal process rounded in front.

Length 6-6} millim.

Hab. Mexico, Oaxaca (Sallé).

Three examples. Shorter than E. picipes, the thorax comparatively broader, the
strie of the elytra finer and obsolete towards the suture.

26. Emmenastus picipes.

Apterous, oblong ovate, very convex, dark reddish brown or black, shining. Head coarsely and closely punc-
tured; prothorax transverse, very convex, rounded at the sides, widest before the base, a little narrowed
behind to the obtuse hind angles, narrowed in front, anterior angles but little prominent and obtuse, rather
coarsely closely and regularly punctured, the punctures a little confluent at the sides, a small rounded
impression near the base in front of the scutellum; elytra convex, a little wider than the thorax at the
base, rounded at the sides, with distinct regular rows of coarsish punctures distinct to the apex, the rows
of punctures scarcely coarser outwardly, and equally distinct towards the suture, the interstices finely and
rather closely punctured; legs and antenne reddish brown. Beneath shining, rather coarsely punctured ;
intercoxal process slightly rounded in front.

Length 7 millim.

Hab. Mexico, Capulalpam, Oaxaca (Sallé).

Three examples. Labelled Hylocurus picipes, Chev., in the Salle collection.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1884. DD

18 HETEROMERA.

Group EPITRAGIDES. | |

This group is well represented in Central America, and the finest species of Epitragus
are found in Mexico. - .

Schenicus might with advantage be divided, but till the numerous South-American
species of Epitragides are worked out, it is better not to make new, and perhaps
unnecessary, genera. Haag and Maklin have studied this group a good deal, with,
I believe, the intention of monographing the species, but, as far as I am aware, nothing
has been published by them. Many of the species in the Sallé and in Mr. F. Bates’s
collection bear manuscript names of these authors; these names I have in most cases
adopted. The species, with a few exceptions, are not of wide distribution.

SCHCENICUS.
Schenicus, Leconte, New Species Col. p. 109 (1866); Horn, Rev. Ten. N. A. p. 265 (1870) ; Lec.
& Horn, Class. Col. N. A. p. 363 (1888).

Described from a single North-American species; numerous others occur in Central
America. Under this genus I have included, with the exception of Tydeolus, all those
species in which the prosternum is not received by the mesosternum. Three species
(S. vestetus, pectoralis, and yucatanensis) have the prosternum horizontal and a little
produced (though never very prominent as in Kpitragus); the remainder have the
prosternum rounded and declivous behind. |

Sect. 1. Prosternum rounded, declivous behind.

1. Schenicus oculatus. (Tab. I. fig. 14.)

Elongate oval, subparallel, convex, dark sneous, shining. Head short and broad, deeply impressed on each
side of the epistoma, which is a little produced and rounded, side lobes rather prominent, with scattered
coarse punctures; the eyes rounded, prominent, and coarsely granulated ; prothorax transverse, subqua-
drate, convex, slightly rounded at the sides, a little narrowed in front to the obtuse anterior angles,
widest about the middle, very slightly narrowed and sinuate behind before the somewhat prominent hind
angles, anterior margin nearly straight, base bisinuate, closely regularly and rather coarsely punctured ;
elytra long, convex, a little wider than the thorax, the sides parallel to beyond the middle, with regular
rows of punctures distinct to the apex, the interstices sparingly and finely punctured.

Length 7-73 millim.

Hab. Panama, San Feliz, San Lorenzo, Volcan de Chiriqui (Champion).

_ This species may be at once known by its long parallel form, subquadrate thorax,
short head, and coarsely granulated eyes.

2. Schenicus panamensis. (Tab. I. fig. 15.)

Oblong ovate, convex, reddish brown with an eneous tinge, or dark eeneous, shining. Head with scattered
rather coarse punctures; the eyes rather prominent and comparatively coarsely granulated; prothorax a
little broader than long, widest at the base, slightly rounded at the sides, gradually narrowed from the
base, sides feebly sinuate near the rather prominent anterior angles, feebly sinuate behind in front of the
prominent outwardly directed subacute hind angles, base strongly bisinuate, closely and rather coarsely

SCHENICUS. 19

punctured, a little more coarsely and more sparingly on the disc, especially at the base; elytra wider
than the thorax at the base, the sides rather straight and very little rounded, with regular rows of coarse
punctures distinct to the apex, the interstices each with a row of very fine punctures, the base and suture
with some scattered fine punctures.
Length 83-9 millim.
_ Hab. Costa Rica (Van Patten); Panama, Volcan de Chiriqui, Tolé, San Feliz, Peiia
blanca, David, Bugaba, La Caldera, San Lorenzo, Taboga Island (Champion).

This is not very closely allied to any of the species of Schenicus here recorded.
Larger and broader than S. oculatus; the head and thorax of a different shape; the
eyes-smoother, less prominent, and less rounded, though a little more prominent and
more coarsely granulated than in the other species of the genus. It appears to be
widely distributed in the State of Panama, and occurring also in Costa Rica.

3. Schenicus salvini.

Schenicus salvini, F. Bates in litt.

Oblong ovate, convex, brassy «neous. Head very closely and somewhat coarsely punctured; prothorax a
little broader than long, widest at the base, sides rounded and narrowed from the base forwards, anterior
angles obtuse not produced, hind angles rectangular slightly acute, anterior margin nearly straight, the
base strongly bisinuate, very closely evenly and coarsely punctured ; elytra broader than the thorax at
the base, the sides rounded, with indistinct rows of coarsish punctures, the interstices confusedly closely -
and not very finely punctured, the punctures nearly as coarse as those of the strix, towards the sides and
at the apex with fine irregular transverse wrinkles.

Length 9-104 millim.

Hab. Guatemata, Chinautla, Duefias (Salvin), Capetillo, Duefias, San Gerénimo

(Champion); Costa Rica (coll. F. Bates).

This species may be known by its brassy colour and the confused punctuation of
the elytra.

4. Schenicus viridis.

Oblong ovate, convex, rather dull, greenish or dark bronze, somewhat variable in colour. Head closely and
rather coarsely punctured, epistoma a little produced triangularly and deflexed in front; prothorax about
as long as broad, convex, the sides straight at the base and narrowed and rounded in front, broadest behind,
anterior angles obtuse, hind angles rectangular, the base strongly bisinuate, closely evenly and rather
coarsely punctured, sometimes with a smooth indistinct central line; elytra wider than the thorax, with
irregular rows of coarsish punctures, the interstices each with one or two rows of finer punctures, the
base and suture more finely and not so regularly punctured, finely wrinkled transversely at the sides.

Length 9-11 millim.

Hab. Mexico (coll. F. Bates), Yolos, Oaxaca (Sallé), Esperanza, Oaxaca (Hége) ;
GuaTEMALA, Tocoy (Champion).

Pretty common in Mexico and in most collections.

5. Schenicus rufipes.
Epitragus rufipes, Haag in litt.

Oblong ovate, convex, dark sneous, sometimes with a greenish tinge, when fresh covered with ashy efflorescence.

DD 2

20 HETEROMERA.

Head closely and somewhat coarsely punctured, the epistoma produced and a little deflexed and rounded
in front; prothorax long, about as long as broad, convex, widest at the base, sides straight behind,
rounded and narrowed in front, anterior angles obtuse not prominent, hind angles rectangular, anterior
margin nearly straight, the base strongly bisinuate, very closely evenly and somewhat coarsely punctured ;
elytra a little wider than the thorax, convex, with not very regular rows of coarsish punctures distinct to
the apex, the interstices with finer scattered punctures and towards the sides and at the apex with some
very fine indistinct transverse wrinkles. Legs red or reddish brown; the femora paler, and in some
examples bright red.

Length 83-10 millim.

Hab. Nicaracua (Sallé), Chontales (Belt, Janson).

I have only seen this species from Nicaragua. Closely allied to S. wridis, and with
the sides of the thorax straight behind as in that species; but comparatively narrower,
the rows of elytral punctures more regular and better defined, and the legs red.

6. Schenicus impressus.

Oblong oval, convex, greenish bronze, shining. Head closely and rather coarsely punctured ; prothorax a little
broader than long, the sides straight behind, rounded and narrowed in front to the obtuse anterior angles,
hind angles rectangular, the base bisinuate, closely and rather coarsely punctured, the punctuation closer,
finer, and somewhat confluent at the sides, shallowly impressed on each side near the margin a little in
front of the hind angles, with an indistinct smooth central line; elytra wider than the thorax, convex,
with regular rows of coarse punctures, the interstices with one or two rows of finer punctures, the base
and suture more closely and finely punctured, finely wrinkled transversely at the sides.

Length 93 millim.

Hab. Costa Rica (Van Patten).

One example. Very near S. viridis, but smoother, narrower, more shining, not quite
so convex, and the rows of elytral punctures more distinct.

7. Schenicus chalybeus. (Tab. I. fig. 16.)
Epitragus chalybeus, Deyr. in litt.

Oblong ovate, convex, dark greenish bronze, sometimes bronze with a bluish tint, rather shining. Head
coarsely and closely punctured; prothorax transverse, strongly convex, rounded at the sides, widest a
little before the base, scarcely narrowed behind, narrowed in front, the angles obtuse not prominent,
closely, evenly, and very coarsely punctured, the base strongly bisinuate; elytra wider than the thorax,
with regular rows of moderately coarse punctures, the interstices each with one or two rows of finer
punctures, more finely and closely punctured along the suture and at the base.

Length 8-9 millim.

Hab. Muxtco (coll. F. Bates), Esperanza, Oaxaca (Hoge), El Camaron (Sallé).

Sent by Hoge in some numbers. Near S. viridis, but more shining, the thorax
shorter, the sides more rounded and not straight behind; the punctuation of the thorax
coarser, and of the elytra coarser, more regular, and less confused.

8. Scheenicus difficilis.
Epitragus difficilis, Boucard in litt.

Oblong ovate, convex, greenish bronze. Head coarsely and closely punctured; prothorax of the same form as

. SCHGENICUS. 21

in S. chalybeus, very closely, evenly, and rather coarsely punctured; elytra wider than the thorax, con-
fusedly, rather finely, and not very closely punctured, without any rows of coarse punctures.
Length 9-10 millim.

Hab. Mexico (coll. &. Bates), El Camaron (Saldé).

Four examples, apparently all females. Very close to S. chalybeus and sent from
the same locality. The elytra, however, are so differently punctured that it seems
scarcely possible to unite them; the thorax is also more closely and finely punctured.
Labelled £. punctatissimus, Chev., in the Sallé collection.

9. Schenicus basalis.

Oblong oval, rather broad, convex, dark greenish bronze, dull. Head coarsely and closely punctured; pro-
thorax scarcely broader than long, convex, widest at the base, the sides nearly straight towards the base,
rounded and narrowed in front, the anterior angles not prominent, the hind angles rectangular, the base
strongly bisinuate, very closely and coarsely punctured, the punctures a little confluent, rounded and
shallow; elytra comparatively broad, rounded at the sides, wider than the thorax, closely finely and
shallowly punctured, the punctures indistinctly arranged in rows, finely and shallowly wrinkled trans-
versely towards the sides, the base more closely and confusedly punctured. Beneath dull, very closely
and shallowly punctured.

Length 9-94 millim.

fab. Mexico, Almolonga (Hége).

Two examples. Duller and broader than its allies, the elytra with rounded, very
shallow punctures; the thorax very closely almost confluently punctured.

10. Schenicus niger.

Oblong ovate, convex, dull bronze-black. Head closely and finely punctured; prothorax a little broader than
long, convex, widest behind, the sides rounded and narrowed in front, feebly rounded and almost straight
behind, the lateral margins a little thickened, the anterior angles obtuse, the hind angles scarcely promi-
nent, subrectangular, the base strongly bisinuate, closely evenly and coarsely punctured, with an indistinct
or obsolete smooth central line; elytra rather long, convex, somewhat pointed behind, wider than the
thorax, with irregular rows of coarsish punctures, the interstices confusedly and sparingly punctured, the
punctures scarcely finer than those of the strie, indistinctly wrinkled transversely at the sides.

Length 9-93 millim.

Hab. Guatemata (Sallé), San Joaquin (Champion).

Two examples. Labelled Hpitragus niger, Haag, in the Sallé collection. Narrower,
smaller, and more convex than S. viridis; the elytra somewhat pointed behind, almost
black in colour, and more sparingly punctured.

Sect. 2. Prosternum a little produced behind, horizontal.

11. Schenicus pectoralis. (Tab. I. fig. 17.)

Oblong ovate, convex, bright cupreous or greenish bronze. Head closely and coarsely punctured, the eyes
carinated within ; prothorax scarcely broader than long, widest at the base, the sides rounded and nar-
rowing to the front, feebly sinuate before the rather prominent outwardly directed hind angles, the
anterior angles a little produced, obtuse, the base bisinuate, closely and rather coarsely punctured, a little
more finely and closely at the sides; elytra wider than the thorax, sides rounded, widest about the

22 - HETEROMERA.

middle, rather coarsely, closely, and confusedly punctured, usual rows. of punctures obsolete ; legs rather
long ; prosternum deflexed behind and slightly produced into a short, broad, horizontal projection trun-
cated at the apex; mesosternum thickened into a rounded smooth elevation between the intermediate
cox; ventral segments very finely and confusedly punctured towards the apex, the first segment smooth

with scattered punctures.
Length 114-123 millim.

Hab. Mexico, Puebla (coll. F. Bates), Izucar and Puebla (Sailé).

Four examples. This species may be known by the differently shaped prosternum.

12. Schenicus vestitus.

Oblong ovate, convex, dull dark bronze, covered with scattered short appressed cinereous hairs, when fresh
completely clothed with a yellowish-white mealy efflorescence. Head closely and finely punctured, the
epistoma not produced and feebly rounded and emarginate in front, the labrum in consequence appearing
very prominent; prothorax broader than long, convex, widest at the base, the sides rounded and narrowing
from the base, the hind angles rectangular, front angles obtuse not prominent, the base bisinuate, a
shallow impression in the middle behind in front of the scutellum, closely and rather coarsely punctured,
the punctuation closer and finer at the sides; elytra broader than the thorax, rather closely confusedly
and somewhat coarsely punctured, and with shallow dorsal grooves, in each of which is an indistinct or
interrupted row of coarser punctures; prosternum horizontal, a little concave, produced behind into a thin
short lobe rounded at the apex; mesosternum a little thickened between the intermediate coxe, in some
examples slightly concave in front and with a short indistinct blunt tubercle on each side.

Length 9-11 millim.

Hab. Mexico, Vera Cruz (Sallé), Oaxaca (Hoge).

Found by Hége in some numbers. This species might be placed either in Schenicus
or Epitragus, having some of the characters of both.

18. Schenicus yucatanensis.
Epitragus yucatecus, Deyr. in litt.

Oblong obovate, convex, dark reddish brown, with fine scattered yellowish pubescence. Head closely and
rather coarsely punctured, the epistoma emarginate in front; prothorax a little broader than long, convex
in front, widest at the base, the sides rounded and narrowing from the base, hind angles subacute not
prominent, anterior angles not prominent, the base bisinuate, very closely equally and rather coarsely
punctured ; elytra wider than the thorax, widest behind the middle, with rows of shallow grooves obsolete
at the apex, the interstices closely finely and confusedly punctured, the dorsal grooves each with an
irregular row of slightly coarser impressions; the prosternum horizontal, a little produced behind, the
apex rounded; the mesosternum rounded and declivous in front, not ridged or formed to receive the
prosternum.

Length 10 millim.

Hab. Mexico (coll. F. Bates).

One example. The structure of the pro- and mesosternum in this species is the
same as in S. vestitus, from which, and from Epitragus emarginatus and E. salle
(apart from the differently formed mesosternum), it may be known by its almost obovate
form.

_ EPITRAGUS. 23

EPITRAGUS.

Epitragus, Latreille, Hist. Nat. Crust. et Ins. x. p. 822 (1804) ; Lec. Class. Col. N. A. part i. p. 215
(1862) ; Horn, Rev. Ten. N. A. p. 263 (1870) ; Lec. & Horn, Class. Col. N. A. p. 363 (1883).

This New-World genus, as here understood, ranges from the Southern United States
to the Argentine Republic, occurring also in the Sandwich Islands and in the West
Indies. Most of the Peruvian and all the Chilian species at present referred to Epi-
tragus will probably have to be placed in other genera. All the species here referred
to it have a prominent prosternal process received by the mesosternum, which is
furnished with a strong V-shaped elevation, concave within. The genus is readily
divided into two sections—one with the middle lobe of the epistoma emarginate in
front, EL. fuscus, Latr., from Cayenne, and the type of the genus, belongs to this group,
which ranges from Mexico to Buenos Ayres; the other, with the epistoma produced
and rounded in front (the anterior margin of the head appearing trilobed), of wider
and more northern distribution. Numerous large metallic brassy or bronze species of
the second group are peculiar to the Southern States, Mexico, and Guatemala. The
females (not the males, as stated by Leconte) of some of the species found in the
Southern States and Mexico have the disc of the thorax flattened and with a promi-
nent elevation on each side, often excavated within and enclosing a scutiform or
triangular excavation. Some allied genera (Nyctopetus and Geoborus) are peculiar to
Chili and Peru, and Chilometopon, Horn, to California. But few of the South-American
species have been described as yet, though numerous in collections. pitragus is well
represented in Central America by upwards of thirty species. ‘The different species are
found upon leaves and herbage, and, unlike the allied groups, seem to like the sun.
One species has been bred from cocoons found in the earth. These insects when
freshly emerged are, in addition to the usual pubescence, densely covered with a sort of
mealy efflorescence, which soon wears off.

Sect. 1. Epistoma emarginate in front.

1. Epitragus aurulentus. (Tab. I. fig. 19.)
Epitragus aurulentus, Kirsch, Berl. Zeit. 1866, p. 189°.
Epitragus denticulatus, Maklin in litt.
Hab. Mexico?; Costa Rica (coll. F. Bates, Van Patten), Irazu (Rogers); Panama,
Volcan de Chiriqui, La Caldera, David, Bugaba, Tolé (Champion).—CoLomBia, Bogota !;
Jamaica; BRraziu?

This is a common species in the State of Panama. It may be known from the others
of the section, in which the epistoma is emarginate in front, by the variegated golden
pubescence of the thorax; the thorax is wider behind, the hind angles more acute and
the punctuation closer and finer, and the rows of elytral punctures deeper and stronger

94 HETEROMERA.

(especially behind) than in the allied species. The long series of examples before me
vary in size from 93-14 millim.

In Mr. F. Bates’s collection there is an example of this species labelled as from
Mexico, and another Brazil (2); both localities require, I think, confirmation.

Some allied undescribed species from Venezuela, Colombia, and Brazil exist in

collections.

2. Epitragus sallei.

Epitragus sallei, Haag in litt.

Oblong ovate, convex, reddish brown or piceous, shining, with very short scattered appressed yellow hairs,
when fresh densely clothed with yellowish-white mealy efflorescence. Head closely and rather coarsely
punctured, the epistoma rounded emarginate in front; prothorax broader than long, convex in front,
widest at the base, the sides nearly straight behind, rounded and narrowing in front, hind angles subacute
not prominent, anterior angles obtuse, the base bisinuate and with a shallow oblique impression on each side
near the middle, closely and unequally punctured, the punctures fine and crowded at the sides and coarser
and more scattered along the middle, and with a smooth central line; elytra wider than the thorax, convex,
with rows of shallow grooves, in each of which are some scattered coarse punctures, the interstices very
closely finely and confusedly punctured.

Length 94-134 millim.

Hab. Mexico (coll. F. Bates), Vera Cruz, Campeachy in Yucatan (Sallé); GuaTeMaLa,

San Gerénimo, Paso Antonio (Champion); Nicaragua, Chinandega (Sallé).—Sovutu

America, Peruvian Andes (coll. P. Bates).

Narrower and a little more convex than LH. aurulentus; the thorax more convex,
more rounded at the sides, the hind angles less acute, the punctuation unequal, and
the pubescence less distinct. In some examples the thorax is a little narrower and
more rounded at the sides than in others.

3. Epitragus emarginatus.

Closely allied to E. salle, and differing as follows :—The thorax is more equally and finely punctured, more
rounded at the sides, nearly as wide at the base as the elytra, the punctures along the middle closer and
finer, the basal impression on each side shallower and less distinct; the elytral grooves deeper, the inter-
stices more finely and closely punctured.

Length 9-11 millim.

Hab. Panama, Volcan de Chiriqui, David (Champion).

Fight examples. From EF. aurulentus it may be known by the thinner and less varie-
gated pubescence of the upper surface, the narrower and more convex form, and the
thorax less finely punctured and more rounded at the sides, with the hind angles more
obtuse. An allied species from Carthagena is labelled E. lebasii, Dej., in Mr. F. Bates’s
collection; E. fuscipes, Latr., from Colombia, must also be allied to this species.

4. Epitragus nigricans. (Tab. I. fig. 18.)

Ovate, rather broad, convex, blackish bronze, clothed with very fine, short, scattered appressed cinereous hairs.
Head with the anterior margin and the vertex very finely and closely, and the space between the eyes

EPITRAGUS. 25

rather coarsely punctured, the epistoma emarginate in front and not produced ; prothorax almost as long as
broad, convex, widest at the base, the sides rounded and strongly narrowed in front, the hind angles not
acute, the front angles obtuse, finely, very closely, and equally punctured, with a smooth narrow central
line, and a shallow transverse impression near the base in front of the scutellum; elytra a little broader
than the thorax at the base, rather short, and strongly convex, with regular rows of coarsish punctures,

the interstices very closely, finely, and confusedly punctured.
Length 10 millim.

Hab. Panama, Tolé (Champion).—Cotomsta, Carthagena (coll. F. Bates).

One example from each locality. This species may be known by its short, broad,
convex form, its dark colour, and the very fine close punctuation of the thorax and of
the interstices of the elytra.

Sect. 2. Epistoma produced and rounded in front.

a, Sexes dissimilar ; the disc of the thorax in the female flattened or excavated, and
often with a ridge on each side.

5. Epitragus bicarinatus. (Tab. I. figg. 212, 22 4.)

Oblong ovate, rather broad, brassy with a cupreous tinge, somewhat densely clothed with yellowish pubescence.
Head long, closely and finely punctured, the epistoma produced and rounded in front,—in the female trans-
versely impressed behind the eyes, the vertex raised in the middle and longitudinally convex, and the
eyes feebly carinated within; prothorax—in the female smooth, shining, scarcely pubescent, very sparingly -
and finely punctured, broader than long, narrowing from the base forwards, the lateral margins thickened
and reflexed and a little sinuate towards the front, the anterior angles very prominent, acute and parallel,
the hind angles acute, prominent, and outwardly directed, the base bisinuate, the disc with a prominent
oblique ridge on each side extending to the anterior margin and enclosing a long scutiform depression, on
each side, a little before the middle, between the elevations and the lateral margin a deep rounded
impression, the anterior margin a little raised and emarginate between the elevations,—in the male
closely and finely punctured, not smoother or less pubescent than the elytra, about as long as broad, the
lateral margins not thickened, the angles acute and prominent, with an indistinct central channel, the
disc flattened in front, and with a shallow impression at the base in front of the scutellum ; elytra broader
than the thorax, scarcely narrowing behind, very closely and finely punctured.

Length 124-133 millim. (¢ 9.)

Hab. Mexico, Vera Cruz (Sallé), Almolonga and Jalapa (Hége).

Sent in plenty by Hége, and labelled E. dicarinatus, Chev., in the Sallé collection.
The sexes of this species are so dissimilar, that I, at first, felt some hesitation in
considering them as of one species; Hége sent numbers of each from both localities. I
have dissected a large number of examples, and find that those with the thorax ridged
are females, and those with the thorax simple males. The males of the allied E. acutus,
Lec., E. arundinis, Lec., and E. canaliculatus, Say, are stated by Leconte to have the
thorax ridged; but in the allied Central-American species I find the reverse to be the
case. The female of EZ. dicarinatus may be known at once from its allies by the structure
of the long exserted head, and by the smooth, shining, acute-angled and ridged
thorax.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1884. EE

26 HETEROMERA.

6. Epitragus ornatus. (Tab. I. fig. 20.)

Oblong ovate, rather broad, brassy seneous, clothed with cinereous pubescence. Head rather short, closely and
finely punctured, epistoma produced and rounded in front; prothorax—in the female broader than long,
narrowing from the base forwards, the lateral margins sinuate (not straight) thickened and reflexed and
abruptly narrowing in front, the base bisinuate, the disc with an oblique ridge on each side extending to
the anterior margin (which is a little raised and feebly emarginate between) and enclosing a large
flattened shield-shaped impression, the elevations a little thinner in front and each with a tuft of yellowish
decumbent hair, the anterior angles acute, prominent, and parallel, the hind angles thickened and subacute,
with a deep rounded excavation on each side near the base, smooth, shining, very finely and sparingly
punctured, sparingly pubescent,—in the male about as long as broad, very slightly rounded at the sides,
closely and finely punctured, with a smooth central line, and the base with a feeble oblique impression on
each side just within the margin; elytra short, broader than the thorax, scarcely narrowing behind, very
closely, finely, and equally punctured.

Length 12-123 millim. (¢ 9.)

Hab. Mexico, Matamoras, Puebla (coll. F. Bates), Izucar, Guanajuato (Sal/é).

Six examples. I have seen this species labelled E. acutus, Lec. ‘The female of
E. ornatus may be known at once by the tufts of yellow hair on the front of the thorax.

7. Epitragus hogei.

Oblong ovate, brassy with a cupreous tinge, clothed with yellowish or cinereous pubescence. Head closely and
finely punctured, the vertex in the female with two broad shallow longitudinal impressions separated in
the middle by a fine indistinct ridge, the epistoma produced and rounded in front; prothorax—in the
female transverse, the sides straight, narrowing from the base forwards, the lateral margins a little
thickened and reflexed, the front angles rather prominent, acute, and directed a little inwards, the hind
angles acute but not very prominent, the base feebly bisinuate, with a smooth shallow central line or
channel, the disc raised towards the front, flattened and excavated within, enclosing a shallow triangular
impression, closely, finely, and equally punctured, rather shining,—in the male less transverse, more
closely and distinctly punctured, the disc very slightly flattened [not excavated], and the prominent anterior
angles broader and triangular; elytra wider than the thorax, very closely and finely punctured, with
indistinct traces of shallow fine grooves.

Length 12-123 millim. (¢ 2.)

Hab. Mexico, Misantla, Jalapa, Cerro de Plumas (Hoge).

Nine examples, of which seven are females. The male of this species may be known
from that sex of FE. bicarinatus by the thorax being less widened at the base, the front
angles broad and triangular, and the hind angles less acute and not produced; the
female is abundantly distinct.

8. Epitragus angusticollis.

Oblong ovate, brassy neous, somewhat densely clothed with cinereous pubescence. Head closely and finely
punctured, the epistoma produced and rounded in front; prothorax broader than long, comparatively
narrow, Widening but little behind, the lateral margins equally thickened and reflexed from base to apex,
almost straight, the anterior angles are much produced, very prominent and acute and directed a little
outwards, the hind angles obtuse not prominent, the base feebly bisinuate, with a smooth central line, the
disc raised in front and with a rounded elevation on each side, shallowly impressed at the base and near
the anterior margin, closely and finely punctured; elytra much wider than the thorax, closely and very

EPITRAGUS. 27

finely punctured, with shallow grooves (in which the punctures are a little coarser) distinct towards the
suture and obsolete at the sides, and near the apex a few small raised points.
Length 123 millim. (9.)

Hab. Mexico, Presidio (Forrer).

One female example. Near E£. héget (2), but with the thorax proportionately
narrower, more closely and distinctly punctured, the lateral margins more strongly
thickened, the anterior angles longer and more prominent, and the hind angles obtuse,
the vertex not impressed, &c.

9. Epitragus littoralis.

Oblong ovate, rather broad, dull obscure eneous, clothed with short cinereous pubescence. Head exceedingly
closely and finely punctured, the epistoma produced and rounded in front; prothorax in the female about
as long as broad; the sides sinuate and narrowing from the base forwards, the lateral margins reflexed
and thickened, the anterior angles acute, thin, straight, and not very prominent, the hind angles
thickened, subacute, and not prominent, the disc with a very prominent, thick, longitudinal (not oblique)
elevation on each side, starting from near the base and reaching the anterior margin (which is not raised
between), the elevations rounded in front, the base very feebly bisinuate, finely and very sparingly punc-
tured, almost smooth,—in the male broader and more convex, the sides rounded, the base more strongly
bisinuate, extremely finely and closely punctured, and with a smooth central line; elytra wider than the
thorax, rather broad, scarcely narrowing behind, exceedingly finely and closely punctured.

Length 13 millim. (¢ @.)

Hab. Mexico, San Blas and Mazatlan (Forrer).

Two examples. In the female of this species the thoracic elevations are very
prominent and subparallel, not oblique; the punctuation of the elytra is exceedingly
fine and close. The male is from Mazatlan, and the female from San Blas; and
though differing considerably, I believe they belong to one and the same species,
an ally of H. arundinis, Lec.

10. Epitragus acutus.
Epitragus acutus, Lec., new sp., 373, p. 108 (1866)*; Horn, Rev. Ten. N. A. p. 264 (1870)’.

Hab. Nortu America, Kansas and Texas! 2.—Mexico 12, Monclova in Coahuila, and
Minas viejas (Dr. Palmer).

I refer with some doubt three examples to this species.

11. Epitragus rorulentus.

Oblong ovate, dull neous, clothed with very fine scattered cinereous pubescence. Head closely and finely
punctured ; prothorax broader than long, narrowing from the base, the sides a little rounded (and sinuous
near the front angles), the angles acute, but not very prominent, the base bisinuate, with a smooth central
line (sometimes a little impressed, sometimes obsolete), closely and finely punctured,—the disc in the
female raised and flattened in front, and with an elevation on each side extending to the anterior margin,
enclosing a long scutiform excavation, and the lateral margins raised and thickened; elytra wider than

EE 2

28 HETEROMERA.

the thorax, rather broad, very closely and finely punctured, with some indistinct shallow grooves towards

the suture.
Length 11-12 millim. (¢ 9.)

Hab. Mexico, Monclova, Parras, and Saltillo in Coahuila (Dr. Palmer), Guanajuato
(Sallé).

Seven examples, of which four are males. The sides of the thorax in the female of
this species are not straight, but a little rounded (especially in front), and scarcely
straighter than in the male; the angles, though somewhat acute, are not very pro-
minent. Allied to E. canaliculatus, Say. |

12. Epitragus incisus.

Oblong ovate, broad, obscure brass with a cupreous tinge, somewhat densely clothed with short cinereous
pubescence. Head closely and finely punctured, epistoma produced and rounded in front, with a short,
indistinct, longitudinal elevation; prothorax a little broader than long, the sides almost straight from
the middle nearly to the base, slightly rounded and narrowing in front, the lateral margins reflexed and
thin, the front angles a little prominent and acute, the hind angles scarcely prominent and subacute, the
base strongly bisinuate and on each side from the central lobe to the angles straight, very finely and
sparingly punctured, with a deep, broad, central channel from base to apex, the disc a little raised near the
anterior margin on each side of the central groove; elytra wider than the thorax, comparatively broad and
short, narrowing but little towards the apex, very finely and sparingly punctured, and with shallow grooves.

Length 134-15} millim. (.)

Hab. Mzxtco, Tres Marias Islands (forrer).

Three examples. This species may be known by its comparatively broad form, and
canaliculated thorax; the elytra are much broader than the thorax.

13. Epitragus canaliculatus.
Epitragus canaliculatus, Say, Long’s 2nd Exped. p. 281 (1824)’; Leconte, New Sp. p. 109 (1866) ;
Horn, Revis. Ten. N. A. p. 264 (1870).

Hab. Norta America, Pennsylvania, Missouri, and Southern States’, Colorado,
New Mexico, and Arizona 2,—Mexico, Northern Sonora (Morrison), Chihuahua (Buchan-
Hepburn).

I have not seen North-American examples of this species; the determination is, in
consequence, a little doubtful.

14. Epitragus scutatus.

Oblong ovate, rather broad, dull eneous, with fine scattered cinereous pubescence. Head rather smooth, closely
and very finely punctured, the eyes with a fine supraorbital carina above, the epistoma produced and
rounded in front; prothorax broader than long, narrowing from the base, the lateral margins thickened,
slightly rounded at the sides, and a little sinuate before the thickened, prominent, and acute front angles,
the hind angles thickened and somewhat obtuse, not prominent, the base strongly bisinuate, the disc raised
and flattened in front, and with a short elevation on each side enclosing a shallow scutiform excavation
the anterior margin between the elevations slightly raised and feebly emarginate, with an indistinct smooth

EPITRAGUS. 29

central line, and a shallow transverse impression at the base, the disc sparingly, and the sides closely and
finely punctured ; elytra wider than the thorax, rather short, closely, finely, and equally punctured.
Length 12 millim. (9.)

Hab, Muxico, Guanajuato (Sal/é).

One female example. Near E. rorulentus; the head with a fine supraorbital carina,
the hind angles of the thorax obtuse, and the anterior angles thickened and very
prominent. |

15. Epitragus foveatus.

Ovate, rather broad, obscure bronze, thinly clothed with short, fine, cinereous pubescence. Head closely and
finely punctured, the epistoma produced and rounded in front, the eyes carinated within; prothorax
broader than long, narrowing from the base forwards, the sides almost straight, or rounded a little in
front, the base bisinuate,—in the female the lateral margins are thickened and slightly reflexed, the disc
with an oblique elevation on each side extending to and connected in front by an elevation of the anterior
margin, the elevations enclosing a shield-shaped flattened space, which is sometimes feebly carinated in
the middle, the raised part of the anterior margin feebly rounded, emarginate, closely and very finely
punctured, the front angles a little prominent, subacute, the hind angles not prominent, subacute,—in the
male the thorax is a little more rounded at the sides in front, the front angles a little more acute and
prominent, the lateral margins not thickened, the elevations almost or quite obsolete, and the punctuation
is more distinct; elytra broader than the thorax, rather short, and narrowing but little behind, with in-
distinct rows of fine punctures towards the suture, the interstices very finely and closely punctured, and
with large scattered angular, or transverse, shallow, irregular wrinkles at the sides.

Length 91-12} millim. (¢ 2.)

Hab. Mexico, Parada, Las Peras, Yolos (Sallé), Cerro de Plumas, Jalapa, Oaxaca
(Hoge).

Fourteen examples, of which ten are females. This species is allied to H. acutus,
Lec., and others; from the species with similarly formed thorax, it may be known by
the elytra being irregularly and strongly wrinkled towards the sides.

16. Epitragus metallicus.

Oblong ovate, convex, very variable in colour, metallic brass, seneous, or bronze, often tinged with blue, green,
or cupreous, shining, clothed with ashy pubescence. Head somewhat coarsely and closely punctured, the
epistoma rather convex, produced, and rounded in front, the lateral lobes a little prominent and divergent,
and separated from the central lobe by a rather deep impression ; prothorax in the male about as long as
broad, in the female transverse and broader in front, narrowing from the base, the sides a little rounded,
and often a little sinuate near the angles, the base bisinuate, the lateral margins very slightly thickened,
the angles a little prominent (rarely produced) and subacute, sparingly and rather finely punctured (the
disc sometimes almost smooth) in the male, more closely and coarsely punctured in the female, the female
with a more or less distinct central channel and the disc flattened in front (sometimes with a feeble
elevation on each side); elytra wider than the thorax, closely, distinctly, and rather coarsely punctured,
with shallow grooves, which are sometimes obsolete.

Length 9-123 millim. (¢ 2.)

Hab. Mexico, Puebla, Toluca, Cuernavaca (coll. F. Bates), Cerro de Plumas, Jalapa,
Mexico city, Misantla, Almolonga, Oaxaca (Hoge), Izucar, Yolos, Juquila, Chiapas,
Oaxaca, Cordova, Cuernavaca, Capulalpam, Puebla, Toluca, Orizaba, Totosinapan,

30 HETEROMERA.

Guanajuato (Sallé), Mexico city, San Luis Potosi, Queretaro (Dr. Palmer) ; GuatE-
MALA, near the city (Salvin), Ostuncalco, Quezaltenango 7800 feet, Duefias (Champion) ;
Costa Rica (Van Patten, coll. F. Bates).

Common and widely distributed in Mexico, becoming rarer southwards. The
examination of a large number of specimens of both sexes from many localities has
convinced me that they should all be referred to one and the same species. Narrower
and more shining than E. acutus, E. canaliculatus, &c.; the disc of the thorax in the
female only slightly flattened, and with a very feeble elevation (often quite obsolete)
on each side; the lateral lobes of the front are slightly divergent, and separated by a
distinct impression from the rather convex epistoma; the prevailing colour is bright
metallic brass, varying to dark bluish bronze; in some examples the thoracic angles
are more acute than in others, and the punctuation of the upper surface varies a good
deal. A pair from Toluca have a distinct impression in the centre of the anterior
margin of the thorax, and another impression midway between the eyes. Specimens
of the dark forms denuded of pubescence are very puzzling. In Mr. F. Bates’s
collection there is an example of this species from Missouri, labelled £. canaliculatus,
Say; it is possible, however, that there is some mistake about the locality, or that two
species are confounded under this name by American entomologists. Labelled in the
Sallé and other collections under the MS. names of EH. juvencus, Dej., conicicollis,
Chev., plumbeus, Dej., niger, Sturm, angustatus, Chev., thoracicus, Sturm, angulatus,
Chev., metallicus, Haag, ahenus, Sturm, cupreus, Dej., candezet, Mak., chalybeus,
Chev., &c.

17. Epitragus chevrolati.

Ovate convex, bright brass with a cupreous tinge, densely clothed with yellowish-brown scales or hairs, and
the head and thorax, in addition, with decumbent matted hair. Head convex above, coarsely and some-
what closely punctured, the epistoma convex, broad, produced and rounded in front, the pubescence long
and matted, the labrum prominent and excavated within; prothorax broader than long, narrowing from
the base, convex in front, the sides a little rounded, the angles not very prominent and subacute, finely
and rather closely punctured, with a smooth central raised line slightly impressed at the base, and the
disc in the female with a large, shallow, rounded impression before the middle, the base strongly bisinuate,
the pubescence rather long and matted, and transversely arranged ; elytra broad, convex, exceedingly finely
and closely punctured, with shallow indistinct grooves, which are often obsolete, the apices rather blunt,
and with a short marginal tooth on each side near the suture, the base slightly flattened in the middle.

Length 13-15 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates), Cuernavaca, Puebla, Guanajuato (Sallé), Jalapa,

Misantla (Hége), Ventanas (Forrer); Guatema.a, near the city (Salvin); Nicaracua,
Chontales (Belt).

Rather common in Mexico, and labelled EF. chevrolati, Bouc., in Mr. F. Bates’s
collection. A broad, convex, large species, bright metallic brass in colour, and very
pubescent; the elytra bluntly toothed on each side near the apex. The Chontales

specimen has the thorax more finely and closely punctured, though agreeing in other
respects.

EPITRAGUS. 3l

b. Thorax similar in both sexes.

18. Epitragus grandis.

Oblong ovate, dull brass, often with a cupreous tinge, somewhat densely clothed with fine cinereous pubescence,
when fresh covered with a white mealy efflorescence. Head closely and finely punctured, the epistoma
broad and convex, produced and rounded in front, the lateral lobes divergent and prominent; prothorax
transverse, narrowing from the base, the sides a little rounded, the anterior margin nearly straight, the
anterior angles obtuse and not produced, the hind angles acute and not very prominent, finely and closely
punctured, with a smooth central line a little impressed at the base, the base bisinuate, and slightly im-
pressed obliquely on each side, just within the margin; elytra broader than the thorax, rather long,
finely, confusedly, and rather closely punctured, with shallow grooves, the apices feebly mucronate; the
prosternal process longitudinally impressed in the middle, between the coxw; the anterior tibie widened at
the apex, and the outer angles bluntly toothed.

Length 15-18 millim. (¢ 92.)

Hab. Mexico, Oaxaca (coll. Ff. Bates), Vera Cruz, Ktla, Puebla (Sadlé), Misantla,
Jalapa, Almolonga (Hége), Ventanas, Presidio (forrer).

This is the largest species of the group known to me. Labelled £. pruinosus, Chev.,
in the Sallé collection, a name used by Horn for another species.

19. Epitragus acutangulus.

Oblong ovate, convex, dark reddish-brown, inclining to bronze, sparingly clothed with fine cinereous pubescence.
Head closely punctured (the vertex rather coarsely, the front finely and more closely), the epistoma pro-
duced and rounded in front, with a fine supraorbital carina; prothorax a little broader than long, convex,
narrowing from the base, the sides rounded, the front angles acute and prominent, the hind angles acute,
very prominent, and outwardly directed, finely, equally, and not very closely punctured, with a central
line or groove [obsolete in front, distinct near the base], the base bisinuate, with an indistinct oblique
impression on each side just within the margin; elytra wider than the thorax, narrowing a little towards
the apex, closely and finely punctured, with shallow grooves.

Length 14} millim.

Hab. Guatmmaa, Paraiso (Champion).

Near £. grandis, but smaller, the thoracic angles more acute and prominent, the
lateral lobes of the front not divergent, the thorax more sparingly punctured, &c.
One example.

20. Epitragus plicatus. (Tab. I. fig. 23.)

Ovate, broad, strongly convex, bright brass with a cupreous tinge, rarely dark bronze, shining, somewhat
densely clothed with yellowish appressed hairs. Head convex, with some coarse scattered punctures
between the eyes, the anterior margin and vertex closely and more finely punctured, the epistoma broad,
convex, produced and rounded in front; prothorax broader than long, wide at the base, narrow in front,
the sides scarcely rounded, nearly straight, convex in front, the front angles a little produced and obtuse,
the hind angles acute, closely and finely punctured, the punctures more scattered on the disc, with a
smooth central line, and a shallow transverse impression near the base in front of the scutellum; elytra
broader than the thorax, rather short, convex in front, depressed in the middle at the base, the sides
sinuate, very finely and closely punctured, with large, scattered, subtriangular, shallow depressions or
wrinkles behind the middle and along the sides, near the apex on each side, a little distant from the

32 HETEROMERA.

tion forming the termination of the marginal carina, which

suture, a short, prominent, rounded eleva
th very closely and finely punctured.

turns inwards.a little before the apex. Benea
Length 121-14 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates), Capulalpam, Las Peras, Juquila (Sallé), Almolonga,
Misantla, Jalapa, and Mexico city (Hoge).

This is one of the most distinct species of the genus, and known by its short, broad,
convex form, bright metallic colour, and the strongly wrinkled elytra, the apices of
which are apparently emarginate. In most collections, and often labelled E. plicatus,
Dej., and £. apicalis, St.; it seems to be not uncommon in Mexico. £. rugosus, Cast.,
from Brazil, to judge from the description, must be allied to this.

21. Epitragus inzequalis.
Oblong ovate, convex, brassy with a cupreous tinge, clothed with short, scattered, cinereous appressed hairs.
Head finely, closely, and equally punctured, epistoma a little produced triangularly in front; prothorax
a little broader than long, the sides almost straight, obliquely narrowing from the base, the front angles
acute and prominent and directed forwards, the hind angles acute, the base bisinuate, and with a shallow
impression in front of the scutellum, and a short transverse impression in the middle on each side just
within the margin, the disc with a shallow sinuous impression on each side near the middle, very finely and
sparingly punctured; elytra convex, a little broader than the thorax, closely and finely punctured, the
sides and apical half with large irregular transverse or oblique shallow triangular impressions or wrinkles,
and near the apex on each side, a little distant from the suture, a short sinuous elevation, the space between
which and the suture concave.
Length 11-12 millim.

Hab. Mexico, Misantla and Almolonga (Hoge).

Two examples. Allied to £. plicatus, but narrower, and the margin of the elytra

not toothed near the apex.

92. Epitragus micans.

Oblong ovate, convex, bright metallic brass, the thorax cupreous, clothed with coarse, scattered, ashy pubescence.
Head closely and rather coarsely punctured, the epistoma convex, and produced and rounded in front;
prothorax transverse, convex in front, slightly rounded at the sides, narrowing from the base, the anterior
angles not prominent, obtuse, the hind angles not produced, slightly pointed, the base strongly bisinuate,
closely and somewhat coarsely punctured, with a slightly raised smooth central line, and a short longi-
tudinal impression in the middle at the base; elytra a little broader than the thorax, short, rather broad
behind, sparingly, distinctly, and somewhat coarsely punctured.

Length 12 millim.

Hab. Mexico, Chiapas (Sal/é).

One example. Of the size and general form of H. plicatus. Broader and more
convex than E. metallicus ( 2 ), the pubescence coarser and more scattered, the anterior
angles of the thorax obtuse and not prominent, &c.

23. Epitragus guatemalensis.

Oblong ovate, convex, bright brassy «neous, clothed with scattered, coarsish, ashy pubescence. Head broad,
convex, closely and rather coarsely punctured, the epistoma broad, convex, produced and rounded in front ;

EPITRAGUS. 33

prothorax transverse, convex in front, narrowing from the base, the sides a little rounded, the angles a
little prominent and subacute, the base strongly bisinuate, closely and somewhat coarsely punctured, with a
smooth, slightly raised, central line, which is slightly impressed before the base, the base with an indistinct
oblique impression (sometimes obsolete) on each side just within the margin; elytra wider than the thorax,
somewhat parallel, the sides but little rounded, finely, distinctly, but not very closely punctured, with
shallow, indistinct grooves, more distinct towards the apex than at the base.
Length 114-121 millim.
Hab. British Honpuras, Rio Sarstoon (Blancaneaux) ; Guatemata (Sallé), Chinautla,
Aceituno, Guatemala city (Salvin), Duefias, Cerro Zunil, Ostuncalco, Capetillo,

Quezaltenango, Totonicapam (Champion); Costa Rica (Van Patten).

A common species in Guatemala. Labelled EL. chevrolati, Haag, in the Sallé collec-
tion. ‘This species may be known by its bright metallic brassy colour, coarse scattered
pubescence, the short transverse thorax, the elytra but little rounded at the sides, and
the distinct punctuation. In some examples the elytra are smoother and more sparingly
punctured than in others.

24, Epitragus aurichalceus.

Ovate, bright brass with a cupreous tinge, densely clothed with brownish-yellow pubescence. Head very
closely and finely punctured (the space between the eyes smoother), the epistoma produced and rounded
in front; prothorax transverse, narrowing from the base, the sides a little sinuate and almost straight, the
anterior angles obtuse and not produced, the anterior margin almost straight, the hind angles not very
prominent, subacute, the base bisinuate, closely but not very finely punctured, with a smooth central
line; elytra much broader than the thorax, rather short, very finely and closely punctured, the apices
rounded, slightly flattened in the middle near the base.

Length 114 millim. ( 9.)

Hab. Mexico, Guanajuato, Oaxaca (Sallé).

Two examples. Labelled EZ. mus, Haag, in the Sallé collection. Allied to H. chev-
rolati, but smaller, the head smaller and more finely punctured, the epistoma less
convex, the thorax comparatively narrower, the apices of the elytra rounded. In the
example from Guanajuato (a female) the elytra are more sparingly punctured and
shallowly grooved, and the thorax is impressed in the middle at the base.

25. Epitragus eratus.

Oblong ovate, brassy with a cupreous tinge, rather dull, somewhat densely clothed with fine yellowish-brown
pubescence. Head very closely, finely, and confusedly punctured, the epistoma produced and rounded in
front; prothorax transverse, not very convex, the sides rounded and narrowing in front, widest a little
before the base, anterior margin almost straight, anterior angles subacute and scarcely produced, hind
angles rectangular, the base bisinuate, very closely, finely, and confusedly punctured, almost rugulose ;
elytra wider than the thorax, rather broad behind, very closely and finely punctured, the base, sides, and
apex still more closely and confusedly punctured, towards the apex with some fine raised points or granules.

Length 11 millim.

Hab. Mexico, Jalapa (Hoge).
One example. Near £. aurichalceus, but with the thorax more transverse, rounded

at the sides, and more closely punctured (almost rugulose).
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1884. FF

34 HETEROMERA.

26. Epitragus parviceps.

Oblong ovate, convex, bright brassy neous, densely clothed with fine cinereous pubescence. Head small,
finely and closely punctured, the epistoma produced and rounded in front 5 prothorax a little broader
than long, narrowing from the base, the sides slightly rounded, the anterior angles produced though
scarcely acute, hind angles not prominent, subrectangular, the base feebly bisinuate, feebly and very
closely punctured, with a fine smooth central line which is obsolete in front; elytra a little broader than
the thorax, convex, a little rounded at the sides, finely, evenly, and very closely punctured, with indistinct

. traces of shallow dorsal grooves.

Length 10 millim.

Hab. Mexico, Oaxaca (Sai/é).

One example. Resembling a small male £. metallicus, but more finely and closely
punctured, the head smaller, and the lateral lobes not prominent, the angles of the
thorax less prominent, &c.; narrower than E. aurichalceus, the elytra proportionately

much narrower.

27. Epitragus canus.

Oblong ovate, light «neous, densely clothed with fine cinereous pubescence. Head very closely and somewhat
coarsely punctured, the epistoma produced and rounded in front, the vertex with some coarse long hairs ;
prothorax a little broader than long, narrowing from the base, the sides nearly straight, the angles rather
prominent and subacute, the base strongly bisinuate, and the margin interrupted on each side about the
middle by an oblique impression, finely and rather closely punctured, with a smooth, distinct, central line ;
elytra broader than the thorax, extremely finely and closely punctured; the outer apical angle of the
anterior tibiee produced into a short blunt tooth.

Length 124 millim.

Hab. Mexico (Sallé, ex. coll. Sturm).
One example. Labelled E. canus, Haag (plumbeus, Dej.), in the Sallé collection.

28. Epitragus pilosus.

Oblong ovate, very convex, reddish brown with a greenish tint, densely clothed with rather long, cinereous,
appressed hairs. Head sparingly and coarsely punctured, the epistoma convex, rounded and produced in
front; prothorax transverse, convex, widest about the middle, the sides nearly straight behind and rounded
in front, the angles not prominent, though acute, rather coarsely and. closely punctured, with a smooth
central line which is slightly impressed before the base, the base bisinuate, and with a slight oblique
impression on each side just within the margin ; elytra broader than the thorax, convex, rounded at the sides,
closely and rather coarsely punctured, the apices somewhat pointed, the pubescence arranged in indistinct
rows.

Length 12 millim.

Hab. Mexico, Vera Cruz (Sail/é).

One example. Labelled E. pilosus, Chev., in the Sallé collection. Not very closely
allied to any of the other species here recorded, and known by its convex form, and
densely pubescent surface; and the pubescence of the elytra arranged in rows.

29. Epitragus cupreus. (Tab. I. fig. 24.)]

Oblong ovate, convex, varying in colour from bright brassy eneous to dark bronze, when fresh covered with
fine, scattered, cinereous pubescence. Head closely and finely punctured, the epistoma rather convex, and
produced and rounded in front; the labrum long and prominent, excavated within; prothorax a little

EPITRAGUS. 35

broader than long, convex in front, narrowing from the base, the sides rounded and a little sinuate towards
the angles, the anterior angles acute, though not prominent, the hind angles prominent and acute, some-
what coarsely and closely punctured, with a smooth central line which is slightly impressed at the base,
the base strongly bisinuate; elytra rather long and convex, somewhat pointed behind, a little wider than
the thorax, closely, confusedly, and rather coarsely punctured, with indistinct rows of coarser impressions,
the apices slightly mucronate ; femora and tibie red or reddish brown, the knees and tarsi darker, in some
examples the femora are bright red.
Length 12-15 millim.

Hab. Guatema.a, Tocoy, Cerro Zunil, San Gerdénimo, Zapote, San Isidro, Duehas,

El Reposo, Volcan de Atitlan (Champion); Nicaragua (Sallé), Chontales (Belz) ; Costa
Rica (Van Patten), San Francisco (Rogers).

A common species in Guatemala, becoming rarer southwards. Larger and longer
than EL. guatemalensis ; the thorax longer, more convex, more rounded at the sides, and
more closely and coarsely punctured; the elytra somewhat pointed behind, and the
legs red. Dark varieties occur in which the punctuation of the thorax and elytra is
finer and more scattered. Labelled EH. cupreus, Dej., in the Sallé collection.

30. Epitragus lucidus.

Oblong ovate, convex, bright brassy neous, sparingly clothed with fine cinereous pubescence. Head finely
and very closely punctured, almost rugulose, the epistoma produced and rounded in front; prothorax
broad, a little broader than long, very convex, strongly rounded at the sides, widest a little before the
base, narrowing a little in front, the anterior angles slightly produced, triangular, and scarcely acute, the
hind angles not produced, straight, and subacute, the base strongly bisinuate, closely and finely punctured,
with a fine, smooth, central line which is slightly impressed before the base; elytra broader than the
thorax, rather short, rounded at the sides, somewhat pointed behind, very closely, finely, and confusedly
punctured, with indistinct shallow dorsal grooves.

Length 12-123 millim.

Hab. Mexico, Ventanas, Presidio (forrer).

Two examples. This species may be known by its comparatively broad convex
thorax, the sides of which are strongly rounded. Allied to i. cupreus, plumbeus,
&c.

31. Epitragus obovatus.

Reversed ovate, convex, dark greenish bronze, rather dull. Head very closely and rather coarsely punctured,
almost rugulose, the epistoma convex, produced and rounded in front, the eyes with a fine supraorbital
carina, the labrum prominent, excavated within; prothorax a little broader than long, convex in front,
the sides rounded and narrowing from the base, the front angles not prominent, obtuse, the hind angles
rectangular, the base bisinuate, and with a feeble oblique impression on each side just within the margin,
closely and rather coarsely punctured, almost rugulose, with a smooth central line; elytra broader than the
thorax, broadest behind the middle, closely and rather coarsely punctured, the punctuation finer and more
scattered towards the apex, with shallow grooves.

Length 144 millim.

Hab. Mexico, Tehuantepec (Sallé).

One example. A large convex species, greenish bronze in colour, almost obovate in
form; the upper surface comparatively coarsely punctured, and scarcely pubescent.

FF 2

36 HETEROMERA.

32. Epitragus pruinosus.
Epitragus pruinosus, Horn, Revis. Ten. N. A. p. 264 (1870) ”.
Hab. Norra America, Owen’s Valley in California 1, Arizona .—Mexico, Northern

Sonora (Morrison).

33. Epitragus plumbeus. |
Epitragus plumbeus, Lec. New Sp. 375, p. 109’; Horn, Revis. Ten. N. A. p. 270 (1870)?.

Hab. Nortu AMERICA, Kansas }, Trans-Mississippi region 2 Mexico, Northern Sonora
(Morrison).

34. Epitragus godmani. (Tab. I. fig. 25.)

Oblong ovate, convex, brownish bronze, shining, scarcely pubescent. Head somewhat coarsely and sparingly
punctured, the eyes carinated within, the epistoma a little produced and rounded in front, the lateral
lobes a little divergent and prominent; the labrum long, not transverse, prominent, concave within ;
prothorax transverse, the sides rounded, a little sinuate before the angles, and narrowing a little from the
base, the angles acute though not prominent, the base bisinuate, sparingly, equally, and rather coarsely
punctured; elytra long, convex, somewhat pointed behind, wider than the thorax, with regular rows of
coarsish punctures, the interstices finely, confusedly, and not very closely punctured, the apices a little
divergent and mucronate. Beneath shining; the prosternal process pointed at apex, the sides of which
(between the coxe) are raised.

Length 10-12} millim.

Hab. Panama, Bugaba, La Caldera, Volcan de Chiriqui (Champion).

A common species in Chiriqui, and known by its shining almost glabrous surface.
Allied species occur in Colombia and Brazil.

35. Epitragus communis.

Oblong ovate, rather narrow and convex, dark brownish bronze, rather shining, with fine, scattered, cinereous
pubescence. Head with the front and vertex closely and finely, the space between the eyes sparingly and
coarsely, punctured, the epistoma produced and rounded in front, the lateral lobes divergent ; prothorax
broader than long, convex in front, the sides rounded and narrowing from the base, the anterior angles
not prominent, obtuse, the hind angles acute and outwardly directed, coarsely and not very closely punctured ;
elytra long, convex, somewhat pointed behind, the apices slightly divergent and pointed, with regular
rows of coarsish punctures, the interstices rather coarsely and closely punctured; prosternal process
impressed on each side, the apex rounded.

Length 10-114 millim.

Hab. Mexico (coll. F. Bates), Playa Vicente, Cordova (Sallé), Oaxaca, Jalapa, Cerro
de Plumas (Hége); Britisa Honpuras, Rio Hondo (Blancaneaur), Belize (coll. F.
Bates); Guatemaa, Teleman (Champion).

This appears to be a widely distributed species, and common in Mexico. It may be
known from E. godmant, by the thorax being more rounded at the sides and more
coarsely punctured, and by the rather more pubescent surface. Labelled E. communis,
Chev., in the Sallé collection.

TYDEOLUS. 37

TYDEOLUS.
Tydeolus, ¥. Bates in litt.

Closely allied to Schanicus. Head broad, short, the eyes not carinated within, front feebly trilobed, the
epistoma a litttle produced and rounded in front, labrum almost hidden; prothorax strongly rounded at
the sides, narrowed in front and behind ; elytra rather short, convex, rounded at the sides, a little more
than twice the length of the thorax; anterior tibie a little curved, widened on the inner side from the
apex to beyond the middle, then suddenly narrowed to the base, the outer apical angle not acute, almost

rounded ; legs rather short; tarsi with short spiny hairs beneath; prosternum rounded and declivous
behind ; mesosternum simple.

Three Mexican species at present constitute this genus. Of a different facies from
any of the Epitraginee known to me. May be known from Schenicus by the structure
of the anterior tibie, the strongly rounded sides of the thorax, broader head, shorter
form, and black colour; the anterior tibiz are apparently thickened in both sexes.

1. Tydeolus atratis.

Tydeolus mexicanus, F. Bates in litt.

Oblong ovate, convex, black. Head coarsely and closely punctured; prothorax transverse, convex, strongly
rounded at the sides, narrowed in front and behind, widest about the middle, front angles obtuse and not
produced, almost rounded, feebly sinuate at the sides just before the subacute hind angles, base strongly
bisinuate, very closely, evenly, and finely punctured ; elytra convex, a little wider than the thorax, rounded
at the sides, the shoulders rounded, closely, evenly, and rather coarsely punctured, with scarcely any
trace of strie.

Length 73-83 millim.

Hab. Mexico (coll. F. Bates), Puebla (Sal/é).

Four examples.

2, Tydeolus tibialis.

Oblong ovate, rather convex, black with an sneous tinge. Head coarsely and closely punctured; prothorax
transverse, convex, rounded at the sides, narrowed in front and behind, widest in the middle, anterior
angles obtuse and almost rounded, sides nearly straight (not sinuate just before the base), hind angles
rectangular, base strongly bisinuate, anterior margin almost straight, very closely, evenly, and finely
punctured; elytra wider than the thorax, rather convex, rounded at the sides, closely, evenly, and rather
coarsely punctured, with indications of obsolete strie.

Length 8-9 millim.

Hab. Mexico (coll. F. Bates).

Three examples. Closely allied to 7. atratus, but not so black, the thorax less
rounded at the sides and not sinuate just before the base, and the elytra a little more
closely punctured.

8. Tydeolus singularis. |
Oblong ovate, convex, pitchy black with an eneous tinge. Head coarsely and closely punctured ; prothorax
broad, transverse, convex, strongly rounded at the sides, narrowed in front and behind, widest in the
middle, anterior angles obtuse and almost rounded, the sides feebly sinuate before the rectangular slightly
prominent hind angles, base bisinuate, very closely, evenly, and finely punctured ; elytra a little broader

38 HETEROMERA.

than the thorax, convex, rounded at the sides, closely, evenly, and rather coarsely punctured, with shallow

but distinct grooves, the punctures not arranged in rows.
Length 94 millim.

Hab. Mexico, Tehuacan (ége).

One example. Larger, broader, and more convex than either 7. atratus or T. tibialis,

Group ZOPHERIDES.

Two genera (Zopherus and Nosoderma) represent this group in Central America; the
former is peculiar to the New World, and has no very near ally; the latter is perhaps

restricted to the Neotropical Region.

ZOPHERUS.

Zopherus, Castelnau, Hist. Nat. ii. p. 205 (1840) ; Sol. Ann. Soc. Ent. Fr. 1841, p. 39; Lac. Gen.
Col. v. p. 91; Horn, Trans. Ent. Soc. Phil. (1867) p. 159.

This genus has its head quarters in Central America, and most of the finest species
are peculiar to that country; one (Z. chiliensis) extends from Yucatan into South
America—to Colombia and Venezuela; several small black species (Z. tristis, concolor,
guttulatus, opacus, and gracilis) are found in New Mexico, Arizona, Texas, &c.; one
(Z. haldemanni, Horn) in Texas and Northern Mexico; and one (Z. elegans) of which the
locality was not mentioned by the describer. Some of the North-American species may
eventually be found in Northern Mexico. The different species frequent dry elevated
districts, and desert regions, and are found under loose bark, logs, fallen trunks of cacti,
&c. ; and sometimes crawling on stumps in the dry season. One species is known to
the natives of Guatemala by the name of “cameleon.” They are said to live a very
long time without food, and living examples have been exhibited at the meetings of the
Entomological Society in London, and also in Paris. The species are difficult to
separate, and one or two have been described on insufficient material, upon single
examples; abraded or greasy individuals are rather deceptive ; the number and arrange-
ment of the tubercles of the elytra and thorax is subject to variation, and often different
on one side from the other.

Sect. 1. Elytra bituberculate at the apex.

1. Zopherus chiliensis.
Zopherus chiliensis, Gray, Griff. Anim. Kingd. p. 796, t. 124. f. 3 (1832) ’.
Zopherus bremei, Guer. Rev. Zool. 1844, p.18; Bréme, Ann. Soc. Ent. Fr. 1844, p. 807, t. 9. f. 2”.
Hab. Mexico’, Yucatan (coll. F. Bates), Progreso in Yucatan (Hoge), Valladolid in

Yucatan (Gaumer); GuateMaua ; Satvapor; NICARAGUA (Sallé), Chontales (Belt, Janson).
—CoLomBIA?; VENEZUELA (coll. F. Bates).

ZOPHERUS. 39

This, the finest species of the genus, is found in dry elevated districts; it has not yet
been received from Costa Rica, or the State of Panama, nor has it ever been taken in

Chili.

2. Zopherus mexicanus.
Zopherus mexicanus, Sol. Ann. Ent. Soc. Fr. x. p. 44 (1841)'; Gray, Griff. Anim. Kingdom,
Append. p. 796, t. 50. f. 5 (1832)?; Hope, Dej. Cat. 3rd ed. p. 207 (descr. nulla) *.
Zopherus jourdani, Sallé, Ann. Ent. Soc. Fr. 1849, p. 301, t. 8. f. 4°.
Hab. Mexico ! 23 (coll. F. Bates), Chiapas (Sallé); British Honpuras, Rio Sarstoon
(Blancaneaux); Guatemata (Sallé)4, Aceituno (Salvin), Panajachel, Godines, Calderas,
Capetillo (Champion); Nicaragua (Sallé).

This is a pretty common species in the drier parts of the highlands of Guatemala,
and found under loose bark, &c., and often crawling on stumps during the dry season.
I adopt the name of Z. mexicanus, Sol.; the description of Z. mexicanus, Gray, would
apply equally well to any of the black and white species. Z. jourdani, Sallé, is identical
with this, and is indeed so labelled in the Sallé collection. Mexican specimens some-
times differ a little from those from Guatemala in having the rows of tubercles on the
elytra larger and more irregular; but in a long series of specimens intermediate forms
will be found.

3. Zopherus jansoni. (Tab. II. fig. 2.)

Zopherus jansoni, F. Bates in litt.

Head dull black, with a large triangular white patch extending nearly to the anterior margin and spotted with
black in the middle; prothorax convex, sides strongly trisinuate and crenulate towards the base, base
subtruncate, yellowish white spotted with black, the spots larger and often confluent on the disc and
smaller and more distinct towards the sides, with a large oblique black spot at the base on each side;
elytra moderately convex, base deeply emarginate and with the margin raised, shoulders produced in front
and the angles raised, yellowish white, with rows of large smooth flattened black elevations or spots
arranged thus—a row of about four or five very large and subtriangular in shape, a row similar of three
or four, a row (often obsolete) of two or three smaller, and a marginal row small of about five, the spaces
between the spots with scattered smaller irregular elevations, the spots along the suture more regularly
arranged and increasing in size towards the base, the large spots of the first two rows more or less
connected by a longitudinal white line or band, apex bituberculate. Beneath dull black; margins of the
head, thorax, meso- and metasternum, and ventral segments broadly marked with yellowish white spotted
with black; ventral segments with a few scattered shallow punctures, ventral callosity but little promi-
nent, the anterior margin of which bisinuate, flanks of the prothorax with a few small scattered tubercles.

Length 21-25 millim.

Hab. Nicaracva, Chontales (Belt, Janson); Costa Rica (Van Patten), Irazu (Rogers).

This species is allied to Z. meaicanus, Sol., but is smaller, narrower, and not so
convex; it is more densely clothed with white (especially beneath) than its allies; the
elytra have only two distinct rows of large spots, which are usually placed upon [or
connected by] longitudinal white lines or bands, the base is strongly emarginate, and the
shoulders very prominent.

40 HETEROMERA.

4. Zopherus costaricensis. (Tab. II. fig. 1.)

Head dull black, with a few scattered punctures, and marked with white along the sides and between the
eyes ; prothorax convex, sides strongly bisinuate and crenulate before the base, base subtruncate, yellowish
white, the disc darker, the sides sparingly, and the disc closely, covered with small flattened black tubercles
or spots, with an interrupted central white line, and the disc with a transverse or rounded spot on each side
before the middle, the anterior margin in the middle marked with black, and the base with:a large
oblique black spot on each side; elytra long, convex, base emarginate and the margin raised near the
shoulders which are a little produced, yellowish white, with rows of flattened black tubercles or spots
arranged thus—a sutural row small and pretty regular, a row of four or five rounded large and prominent, a
row of three or four similar wider apart, and a marginal row smaller of five to seven, between the rows
of large spots are rows of smaller ones closely crowded together, the spots in the second and third rows
connected by a longitudinal white band, apex bituberculate. Beneath black, slightly shining; margins
of the head, thorax, meso- and metasternum, and ventral segments marked with yellowish white spotted
with black; flanks of the thorax with numerous rounded tubercles; ventral segments with scattered
punctures; the whole of the under surface with small scattered indistinct raised spots or tubercles ;
ventral callosity prominent, emarginate, and with a protuberance in the centre in front.

Length 27-34 millim.

Hab. Costa Rica (Sallé, Van Patten), Ivazu, Cache, Rio Sucio, San Francisco
4500 feet (Rogers).

I have only seen this species as yet from Costa Rica. Larger than Z. jansoni, the
under surface and the thorax above not so smooth and more tuberculate, the shoulders
of the elytra not so prominent or produced, more convex, the longitudinal white bands
(connecting the rows of large tubercles) on the elytra more distinct, the sutural row of
elevations stronger, the flanks of the thorax much more closely and coarsely tuberculate.
From Z. mexicanus it may be known by the different arrangement of the elevations or
spots of the elytra, those of the second and third rows are stronger and less numerous,
and of the interstices smaller and more crowded and collectively arranged in three broad
rows, which are separated one from the other by the broadish white bands upon
which the larger prominent elevations are placed.

5. Zopherus levicollis.
Zopherus levicollis, Sol. Ann. Soc. Ent. Fr. (1841) p. 46°.

Hab. Mzxico! (coll. F. Bates), Mexico city (Hoge), San Antonio de Arriba (Sallé),
San Miguelito (Dr. Palmer).

Var. Venosus.

Head black, slightly shining, with scattered rather coarse punctures, and a small triangular white occipital
spot; prothorax broad, convex, sides trisinuate and crenulate before the base, white, with small flattened
black tubercles or spots, the disc with a black patch about the middle and towards the anterior margin
bare and shining leaving a broad black transverse patch in front, the base subtruncate and with a large
triangular black spot on each side, with a few scattered impressions closer and more distinct near the
anterior margin; elytra convex, base slightly emarginate, shoulders distinct, white, with rows of flattened
black tubercles arranged thus—a sutural row of about fifteen to eighteen small and rather recular, a
row large and rounded of about eight, a row similar of about seven, a row alittle smaller and wider saat a
about six, and a marginal row smaller of six or seven, between the rows are scattered smaller spots, apex

ZOPHERUS. 4]

‘bituberculate. Beneath black, shining, with scattered coarsish punctures, which are finer and closer together
towards the last ventral segments, ventral callosity emarginate and with a large rounded swelling in the
centre in front; flanks of the thorax with a few large coarse impressions.
Length 17-23 millim.
Hab. Mexico (coll. F. Bates), Juquila, Parada, Capulalpam (Sallé), Mexico city
(Hage).

This is probably not distinct from Z. levicollis, a species described by Solier from a
single worn example. The description is from a beautiful fresh specimen, in the Sallé
collection, from Juquila; others from Parada, Capulalpam, and Mexico city are inter-
mediate and with the tubercles of the elytra more irregular, but arranged in more or
less distinct rows; the sculpture of the upper surface of the thorax varies a great deal,
and cannot be relied upon as a specific character; the ventral tubercle is trilobed in
front in all the specimens I have examined. The examples I refer ta Z. levicollis are
much abraded (apparently), and almost entirely black and shining; the thorax in some
specimens is smooth, in others with small flattened tubercles and a few scattered
impressions ; the elytra with coarse irregular elevations, often more or less confluent, or
in the form of transverse wrinkles. In the long series of specimens before me
intermediate forms are to be found.

6. Zopherus tuberculatus. (Tab. II. fig. 3.)

Head dull black, with a triangular white occipital patch ; prothorax convex, the sides very feebly trisinuate
(almost rounded before the middle) and finely crenulate towards the base, white, the disc with a broad
black patch extending from the base to the anterior margin [the white colour extending a little inwards
about the middle], and some scattered black spots towards the sides, almost smooth except for a few
indistinct flattened tubercles on the disc and some scattered fine punctures, base subtruncate and the
margin punctured; elytra of an elliptic form, convex, white, with five regular rows of flattened black
tubercles arranged thus—a sutural row small running one into the other towards the base, separate at
apex, a row of about eight larger and almost touching the sutural row, a row of about seven the same
size, a row similar, and a marginal row small of about eight or nine, the third and fourth rows with the
spots wider apart and more distinct one from the other, the spaces between the tubercles with small black
spots, the shoulders prominent, apex bituberculate and the tubercles flattened and not very prominent.
Beneath black, slightly shining, with scattered punctures finer towards the last ventral segment, ventral
callosity produced in the centre of the anterior margin.

Length 20 millim.

Hab. Mexico, Tehuantepec (Sal/é).

One example. Allied to Z levicollis, but longer, not so convex, thorax proportion-
ately broader at the base; the tubercles are flatter and less raised, though prominent,
than in the allied species.

7. Zopherus maculatus.

Head dull black, with a triangular white spot between the eyes; prothorax convex, sides trisinuate and
crenulate towards the base, white, with scattered small black spots and with four ill-defined larger ones on
the disc—one at the base extending forwards, one near the anterior margin, and one on each side near the
middle; elytra rather convex, shoulders prominent, white, with rows of black tubercles arranged thus—a

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1884. GG

42 HETEROMERA.

sutural row small and crowded and distinct only towards the base, a row much larger of threo or four, a
row similar, and a marginal row small of about six pretty regular, the spots in the second and third rows
irregularly arranged, a few scattered small black spots between the larger ones, apex bituberculate,
Beneath dull black, not shining, hind margin of the ventral segments indistinctly marked with white on
each side and the surface with a few fino punctures equally distributed, ventral tubercle feebly bisinuate

in front.
Length 17-18 millim.

Hab. Mexico (coll. F. Bates).

Two examples. Allied to Z. venosus and levicollis, but shorter and more convex,
the arrangement of the tubercles of the elytra is rather different from any of the allied
species, the sutural row is distinct only in the basal half, the two rows of large
tubercles approach the suture behind, and the inner one almost takes the place of the
sutural row; the ventral tubercle (though scarcely to be depended on as a character) is

not trilobed in front as in the allied species.

8. Zopherus angulicollis. (Tab. II. fig. 6.)

Black, subopaque. Head very sparingly punctured ; thorax with fine widely scattered punctures, moderately
convex, rather depressed, with an indistinct central channel, sides trisinuate and widened out a little
before the middle into a distinct blunt tooth, midway between which and the base crenulate, narrowed
behind, base much narrower than the apex and subtruncate ; elytra oval, convex, much narrowed at base,
shoulders rather prominent, base slightly emarginate, with scattercd irregular small conical shining
tubercles more distinct at the sides and apex than at the base and an indistinct row of flattened tubercles
along the suture, the space between the tubercles dull and opaque, apex bituberculate and with the tubercles
very large and flattened. Beneath dull black, ventral segments with scattered fine punctures, the last
with a prominent transverse callosity the anterior margin of which slightly produced in the centre;
mentum with a deep transverse impression.

Length 17 millim.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).
One example only. Allied to Z. guttwlatus, Horn.

Sect. 2. Elytra 4-tuberculate at the apex.

9. Zopherus nodulosus.
Zopherus nodulosus, Sol. Ann. Soc. Ent. Fr. (1841) p. 43°.
Zopherus variolosus, Sturm, Cat. 1843, p. 349, t. 5. f.2; Hald. Stansb. Expl. p. 376 (1852).

Hab. Mexico’, Jalapa, Orizaba (Sal/é), Juquila, Jalapa (Hoge), Oaxaca (coll. F. Bates).

Var. sallei.
Zopherus sallei, Deyr. in litt.

Proportionately a little shorter and more convex than Z. nodulosus; the elytra more rounded at the sides, the

clevations more numerous and crowded, and towards the suture only separated by thin white lines.
Length 14-27 millim.

Hab, Mexico (coll. F. Bates), Orizaba, Capulalpam, Oaxaca (Sailé).

This is the commonest Zopherus in Mexico, and peculiar to that country; it has

-ZOPHERUS. 43

been recorded from Texas, but in mistake; Texan specimens are referable to Z. halde-
manni, Sallé, as pointed out by Dr. Horn (Rev. Ten. N. A. p. 27). The type of
Z. variolosus, Sturm, contained in the Sallé collection, is identical with this species.
The var. sall@i is not, I think, really distinct from Z. nodulosus; intermediate forms
occur.

10. Zopherus haldemanni.
Zopherus haldemanni, Sallé in litt.; Horn, Ten. N. A. p. 271".

Hab. Nortn America, Texas}.

Var. verrucosus. (Tab. II. fig. 5.)

Differs from Z. haldemanni in having the thoracic discal patch larger, not so well defined, and with ramifica-
tions extending in the middle nearly to the lateral margins; the clevations of the elytra less regularly
arranged, a little larger, and occupying more of the white ground-colour.

Hab. Muxtco (coll. F. Bates), Cuernavaca (Sailé).

Almost intermediate between Z. nodulosus and haldemannt.

11. Zopherus nervosus.
Zopherus nervosus, Sol. Ann. Soc. Ent. Fr. (1841) t. 2. f, 8-15".
Zopherus pectoralis, Lec. Ann. Lyc. New York, v. 1851, p. 180, nota.
Zopherus mexicanus, Buquet in litt.
Hab. Mexico 1, Tepansacualco, Orizaba, Las Peras, Cumbre del Pelado, Totosinapan

(Sallé), Oaxaca (coll. F. Bates).

Var.? reticulatus, Sallé in litt.

Closely allied to Z. nervosus, Sol., but having the spots or tubercles of the elytra less crowded, more distinct
one from the other, larger, oblong in form, less numerous, and arranged thus—a sutural row small, a
row of about five very large, a row of four about same size, a row of three smaller, and a marginal row of
five or six, scattered between these are irregular small black spots, smaller than those of the sutural row ;
the white ground-colour occupying a larger space, and the tubercules, which are oblong in form, standing
out more clearly ; beneath a little smoother and more shining.

Hab. Mexico, Juquila (Salié).

A very variable species, though it may be known from its allies in the second section,
except the following (compactus, Sallé), by the flanks of the prothorax being covered
with distinct rounded tubercles; the whole of the underside (ventral segments excepted),
and the flanks of the elytra beneath, is more or less tuberculate; the shoulders are but
little prominent; varies very much in size (18-30 millim.), some specimens are shorter

and more convex than others.

12. Zopherus compactus. (Tab. II. fig. 4.)
Broad, very convex. Head black, dull, with a few scattered fine punctures, and a yellowish-white triangular
occipital spot more or less spotted with black ; prothorax very convex, nearly as broad as long, margins

GG 2

44. HETEROMERA.

strongly crenulate near the base, closely tuberculate above, the tubercles eblaretae sea sta se
separated by fine yellowish-white veins or lines, the posterior angles and re e i. oo saree
with yellowish white; elytra short and very convex, rounded at the sides, ¢ osely men ius

black tubercles arranged thus—a sutural row regular small, a row smaller irregu ar, ne rows very
large, a row a little smaller, and a marginal row about same size, between these irregular rows are
numerous other small tubercles of the size of those of the sutural row, the spaces between the tubercles
filled up with a fine network of yellowish-white colour, shoulders not very prominent, apex quadrituber-
culate. Beneath black, margins of thorax, meso- and metasternum, and second and third ventral segments

marked with yellowish white, flanks of prothorax and elytra closely and coarsely tuberculate, the rest
(ventral segments excepted) more or less rough or tuberculate, ventral callosity deeply emarginate in

front.
Length 18-27 millim.

Hab. Mexico, Parada, Las Peras (Sallé), Oaxaca (coll. F. Bates).

Closely allied to, and probably only a form of, the preceding species (Z. nervosus,
Sol.); shorter and more convex, the thorax and elytra more closely tuberculate, and
the tubercles, though more numerous, more distinct one from another. This species
bears the name of compactus, Sallé, in the Sallé collection, the name I have adopted.

NOSODERMA.

Nosoderma, Solier, Ann. Soc, Ent. Fr. x. p. 31, t. 2. f. 1-3 (1841).
Homaloderes, Sol. loc. cit. iti. p. 502, nota.

This genus is probably confined to the Neotropical Region, ranging from Mexico to
Brazil, and occurring also in the West Indies; it is well represented in Central
America, whence three or four species have been described; one species is found
in Brazil, one in Colombia, and one in Cuba; a number of additional species (about
half of which are known in collections) are described here. Nosoderma, like Zopherus,
has its head quarters in Central America, though not occurring north of Mexico, where
it is replaced by the closely allied genera Phellopsis, Noserus, and Phiwodes. Allied
forms, probably generically distinct, are found in Japan, Siberia, and East Africa; and
also (Zopherosis) in New South Wales. ‘These insects are difficult to describe in a
satisfactory manner; like certain Aside the depressions of the upper surface are often
filled up with earthy matter, thus disguising the sculpture, and good differential
external sexual characters are apparently wanting.

The different species are found under loose bark in the forests, usually at high
elevations, and often in very dark damp places; also upon fungoid growths attached
to the bark of old stumps or dead standing trees, upon which they remain apparently
immovable, and so much do they assimilate the surface upon which they are resting
that it is often very difficult to distinguish them.

1. Nosoderma quale. (Tab. II. fig. 14.)

Elongate, depressed, dull black. Head almost smooth; prothorax much longer than broad, widest about the
middle, sides rounded and very slightly narrowed at base and in front, base truncate, and as wide as the

NOSODERMA. 45

elytra, hind angles almost rectangular, finely and equally granulated, with a distinct shallow central

channel from base to apex; elytra subtruncate at base, humeral angles rounded and not prominent, sides

almost straight to behind the middle, finely and equally granulated without any appearance of raised lines

or tubercles, with four or five indistinct rows of shallow impressions towards the base, apices a little

produced, equally rounded, and not separate at the suture. Legs black; antenne pitchy, submoniliform,

the apical joint enclosed by the tenth, which is very large and truncate at apex; last joints of palpi red.
Length 20 millim.

Hab. Mexico, Parada (Saidé).

One example. This species has quite a different facies from any of the Vosodermata
known to me.

2. Nosoderma asperatum. (Tab. II. fig. 9.)

Elongate, rather convex, black, densely clothed with dull brown scales. Head almost impunctate; prothorax
coarsely crenulate at the sides, longer than broad, base produced into a broad lohe, between which and
the obtuse hind angles strongly emarginate, anterior angles rounded and prominent, the disc with a
prominent sinuous ridge on each side, the ridges sharply defined outwardly by a deep excavation, with
scattered, shining black granules; elytra with irregular rows of very prominent scattered elevations,
which are conical in form towards the apex, and in the form of short ridges towards the base, the margins
and spaces between the elevations with scattered rounded tubercles, the margins much interrupted and
with the tubercles angular towards the apex, shoulders obliquely truncate, apices divergent, and each with
a prominent tubercle. Beneath with scattered granules or elevations. Antenne with intermediate joints
submoniliform.

Length 12-14 millim.
Hab. Muxico (Sallé, coll. F. Bates).

Four examples. Allied to V. scabrosum, but shorter in form, a little more convex,
the lateral margins of the thorax scarcely sinuous and very coarsely crenulate, the elytral
tubercles more conical; the spaces between the larger elevations with scattered, small
rounded tubercles.

3. Nosoderma scabrosum.
Nosoderma scabrosum, Sol. Ann. Soc. Ent. Fr. x. p. 36° (1841).
Nosoderma lacordairei, De Bréme in litt.

Hab. Mexico}, Orizaba (Sallé), Jalapa (Hoge), Oaxaca (coll. F. Bates).

4, Nosoderma denticulatum.
Nosoderma denticulatum, Sol. Ann. Soc. Ent. Fr. x. p. 33, t. 2. f. 7 (1841)".

Hab. Mexico}.

I cannot satisfactorily identify this species amongst the very large number of Mexican
Nosodermata contained in the Sallé and other collections; it is probable that one of the
species here described will prove eventually to be identical with it.

5. Nosoderma venustum. (Tab. II. fig. 7.)
Elongate, dull black, the dense scaly clothing above dull brown with darker brown spots or markings. Head
with the lateral margins swollen and raised ; prothorax much longer than broad, narrowed towards the

46 HETEROMERA.

base, front angles produced and rounded, hind angles obtuse, base a little produced and slightly rounded,
the dise with a prominent sinuous ridge on each side, the ridges. sharply defined outwardly by a deep
impression extending to the lateral margin, the surface with fine scattered granules; elytra abruptly
narrowed and declivous behind, and the apex produced, the base deeply rounded emarginate, the shoulders
prominent, with rows of short elevations towards the base, and some large prominent tubercles towards
the apex, the elevations arranged thus—a sutural row indistinct, a row starting from near the shoulder
continuing to beyond the middle and ending abruptly in a large rounded prominence, a short interrupted
row scarcely reaching the base, and a marginal row ending like the second, but beyond it, in a large
rounded prominence, beyond the termination of the second row but nearer the suture is another still more
prominent but less rounded prominence, the apices somewhat broadly truncate with a large rounded
tubercle on each side distant from the suture, between the elevations are irregular rows of depressions,
the surface with fine scattered shining black granules. Beneath light brown, with dark spots or markings.
and scattered granules. Antenne stout, with intermediate joints slightly transverse.
Length 20-24 miilim.

Hab. Guatemata, Zapote, Volcan de Atitlan (Champion).

Two examples. This is perhaps the finest and most distinct species of all the Central-
American Nosodermata.

6. Nosoderma lutosum. (Tab. II. fig. 8.)

Elongate, flat and depressed, dull black, densely clothed with brown earthy-looking scales. Head with the
lateral margins slightly raised; prothorax flattened, longer than broad, wide in front, narrowed and
sinuate at the sides from the middle to the base, front angles very prominent and broadly rounded, hind
angles obtuse, the base slightly rounded, with two short ridges at the base, and two similar ridges near
the anterior margin, divided by a smooth, shallow, central line or channel, the disc with a strong curved
elevation on each side well defined externally by a deep impression, the surface and lateral margins with
small, widely scattered, rounded elevations, the margins appearing coarsely crenulate; elytra for more than
half their width and for about two thirds of their length flattened and slightly concave, abruptly declivous
behind, and the apex produced, with irregular rows of elevations and depressions, a sinuous row of larger
elevations starting from the shoulder and ending some distance before the apex ina rough prominent
tubercle, and a marginal row similar, but ending before it, the apices broadly truncate, and each with two
rounded tubercles—one near the suture and the other on the margin. Beneath brown with paler markings
and some scattered shallow impressions ; ventral segments broadly flattened.and slightly concave down the
middle. Antennz with intermediate joints almost transverse.

Length 16-19 millim.

Hab. Mexico (coll. F. Bates), Orizaba (Sallé), Jalapa (Hoge).

7. Nosoderma zunilense. (Tab. II. fig. 10.)

Elongate, depressed, dull black, densely clothed with dark brown scales. Head with lateral margins raised
and prominent; prothorax much longer than broad, broad in front, narrowed from about the middle to
the base, the sides bisinuate, base broadly but feebly rounded, rather flattened, the disc longitudinall
convex and with a not very prominent sinuons ridge (sharply defined externally by a deep icopression} Bs
each side near the middle, the surface with fine scattered granules; elytra flattened for about two thirds
of their width to some distance beyond the middle, then abruptly declivous to the apex, with rows of long
deep impressions, and two interrupted raised lines or elevations—the first represented d 7 a short pountled
elevation at the base and becoming obsolete beyond the middle, the second not side the base and
terminating some distance before the apex in a very prominent rounded elevation a little beyond the
elevation terminating the second row, but on the lateral margin, is another large sisientitnn subtcancel r
elevation, shoulders obliquely truncate, apices a little produced and separately ounded the surf. a ith
small scattered granules a little more prominent than on the thorax. Beneath dull black peal?

NOSODERMA. 47

clothed with dark brown scales, and with scattered rather coarse granules; the ventral segments more
finely and sparingly granulate. Antenne with intermediate joints submoniliform.
Length 18-22 millim.

Hab. Guatemaua, El Tumbador, Cerro Zunil (Champion).

Four examples.

8. Nosoderma guatemalense. (Tab. II. fig. 11.)

Moderately elongate, depressed, dull black, clothed with dark brown scales, the surface, except the head, with
scattered shining granules. Head with the lateral margins a little raised and rounded; prothorax a little
longer than broad, widest about the middle, a little narrowed in front and behind, anterior angles not very
prominent and broadly rounded, hind angles obtuse, base subtruncate, depressed towards the sides, the disc
longitudinally convex, in some examples with a sinuous transverse elevation on each side starting from about
the middle and extending to the lateral margins, and often well defined behind by a large, deep, triangular
impression ; clytra flattened for about two thirds of their width to some distance beyond the middle, with
a series of ridges ending in more or less prominent rounded elevations towards the apex, the ridges
arranged thus—one sutural extending to the apex, one indistinct prominent only at the base, one more
distinct than the others starting from near the shoulder and ending abruptly in a rounded elevation, one
short not reaching the base, and one marginal, much interrupted, starting from the shoulder and ending
a little beyond the termination of the third in a rounded elevation, between these ridges are rows of long
deep impressions, the apices a little produced, almust equally rounded, and slightly divergent at the
suture, shoulders feebly truncated and almost rounded. Beneath sparingly clothed with dark brown scales,
somewhat closely and coarsely granulate. Antenne with intermediate joints submoniliform.

Length 16-17 millim.

Hab. British Honpvras, Rio Sarstoon (Blancaneaux); GuaTemaa (Sallé), Totoni-
capam, Purula, Chilasco, Calderas, Volcan de Fuego 6500 feet, San Gerénimo, Duefias

(Champion).

This species is not uncommon in Guatemala under loose bark of fallen timber in the
forests at elevations of from 4000 to 10,000 feet ; it is allied to Y. zunzlense, but shorter,
the thorax shorter and narrower in front, the apices of the elytra almost equally rounded
and very slightly produced, and the tubercles not nearly so prominent, &c. WV. zunilense
and guatemalense have a different facies from the other Central-American species; they
are flatter and squarer in form, and have four prominent tubercles only on the elytra
towards the apex—one on each side on the margin, and the other a little above nearer
the suture; the rows of impressions on the elytra are deeper, and the marginal elevation
before the apex prominent; the disc of the thorax is longitudinally convex in both
species.

9. Nosoderma interruptum.

Moderately elongate, rather depressed, dull black, densely clothed with dark brown earthy-looking scales.
Head almost smooth; prothorax longer than broad, almost as broad behind as in the middle, a little
sinuous before the prominent hind angles, base a little produced and subtruncate, the disc with a promi-
nent, interrupted sinuous elevation on each side, the surface with widely scattered coarse granules; elytra
with rows of shallow impressions and sinuous or curved ridges or elevations, the elevations arranged
thus—an irregular and interrupted row formed of three short ridges (one starting from the base and
curving inwards, followed by another curving outwards, and another shorter and stouter also curving

48 HETEROMERA.

outwards), a little beyond the termination of this row, but nearer the suture, is a rounded prominent

elevation, and a short interrupted marginal ridge distinct only near the base, in addition to these there are

towards the sides and apex a few other indistinct or less prominent elevations, the margins from the

middle to the apex somewhat coarsely but widely denticulate, apices a little produced and swollen,

divergent at the suture, and separately rounded. Antenne with intermediate joints broader than long.
Length 18-19 millim.

Hab. Mexico, Las Vigas (Hége).
Allied to NV. morbillosum, Sol.

10. Nosoderma insigne. (Tab. II. fig. 13.)

Moderately elongate, depressed, dull black, densely clothed with brown scales. Head impunctate ; prothorax
a little longer than broad, slightly narrowed in front and behind, feebly sinuate at the sides before the
prominent obtuse hind angles, the base a little produced and subtruncate, the disc with a not very promi-
nent sinuous ridge on each side, with a central smooth line slightly impressed at the base, the surface with
scattered shining granules which are coarser and more numerous near the anterior margin, the space between
the ridges smoother and less closely but more coarsely granulate ; elytra rather smooth, with some irregular
shallow impressions, and a row of short prominent elevations starting from near the shoulder and ending
before the apex, and consisting of—a ridge curving inwards starting from the base, another shorter curving
outwards, another similar curving inwards, and lastly a small rounded elevation, with a short marginal
elevation at the base, and the surface with scattered very fine granules, the base broadly but feebly emar-

ginate, the shoulders rounded, the apices almost rounded and scarcely divergent at the suture.
Length 17 millim.

Hab. Mexico, Capulalpam (Sal/é).

Two examples. This is allied to NV. interruptum, and with the elevations of the
elytra arranged in the same manner, but is much smoother, the elytral depressions

shallower, the elevations shorter and less connected, and the apices almost equally
rounded.

11. Nosoderma morbillosum.
Nosoderma morbillosum, Sol. Ann. Soc. Ent. Fr. x. (1841) p. 877.
Nosoderma inequale, De}. in litt.
Nosoderma regale, Klug in litt.
Nosoderma vicinum, Sol. loc. cit. p. 887.

Hab. Mexico (Lruqui, coll. F. Bates), Jacale, Las Vigas, Parada, Yolotepec, Orizaba

(Sallé), Jalapa, Mexico city, Las Vigas (Hége), Ciudad in Durango 8100 feet (forrer) ;
tGuatemata (Sallé).

This is a common species in Mexico, where Hoge found it in great plenty; one
specimen only in the Sallé collection is labelled Guatemala, perhaps erroneously. ‘The
N. vicinum, Sol., is a small and narrow form of this species.

12. Nosoderma carinatum.

Moderately elongate, rather depressed, dull black, clothed with dark brown scales. Head rather smooth;
prothorax longer than broad, narrowed in front and behind, sides slightly sinuate before the base, hind
angles prominent and obtuse, the disc with a sinuous prominent elevation on each side, the surface with

NOSODERMA. 49

coarse, shining, black granules, crowded on the elevations and at the sides and in front, the space between
the elevations usually clearer, with a central smooth line distinct at the base, the base slightly produced,
subtruncate; elytra with prominent raised lines and elevations, and rows of shallow impressions, the
raised lines arranged thus—a line distinct only towards the apex, starting from the base and ending
abruptly beyond the middle in a long, rounded elevation, a line slightly sinuous, prominent, and uninter-

rupted throughout, starting from the base and ending short of the first, a short line obsolete in front and —
not reaching the base, and a short marginal line starting from the shoulder and not reaching the middle,
some distance beyond the termination of the second line, but nearer the first, is an isolated rounded
elevation, sometimes with one or two other smaller elevations a little before the apex, base broadly
emarginate, shoulders rounded, the margins closely crenulate, apices rounded, and very slightly divergent
at the suture, the surface with coarse scattered granules. Antenne with intermediate joints longer than

broad and submoniliform. Beneath closely and coarsely granulate, fifth ventral segment smoother.
Length 15-20 millim.

Hab. Mexico (coll. F. Bates), Orizaba, Jacale (Sallé), Las Vigas, Jalapa (Hoge).

This species is labelled WV. papulosum, Chev., in the Sallé collection, and is rather
common in Mexico. Hoge found it in numbers at Jalapa.

Allied to NW. exsculptum, but with the rows of elevations on the elytra more prominent
and less interrupted, the thorax comparatively a little broader behind, and the hind
angles more prominent and less obtuse.

13. Nosoderma exsculptum.

Elongate, rather narrow and depressed, dull black, clothed with dark brown scales. Head rather smooth;
prothorax much longer than broad, narrowed and sinuate behind, hind angles obtuse, and almost rounded,
base a little produced and subtruncate, with a more or less distinct, smooth, central line or channel from
base to apex, and the disc with a sinuous (sometimes not very prominent) elevation on each side, the
elevations well defined externally by a deep impression, and internally by a smooth sinuous space, the
surface with scattered, rather coarse, smooth, black granules, the granules crowded along each side of the
central line and on the elevations; elytra with interrupted raised lines or ridges, and some rounded
elevations towards the apex, and the intervals with irregular rows of shallow impressions, the elevations
arranged thus—an indistinct ridge (more or less interrupted or obsolete towards the base) starting from
the base and ending some distance before the apex in a rounded elevation, a ridge (much interrupted
behind, but distinct towards the base) starting from near the shoulder and ending before the first in a
similar rounded elevation, a short interrupted ridge not reaching the base and ending in a line with the
first, and a marginal ridge indistinct, a little beyond the termination of the ridges and in a line with them
are one or two rounded elevations, the surface with scattered granules arranged in rows on the elevations,
less numerous and irregularly placed in the depressions, the margins towards the apex somewhat coarsely
denticulate, the base feebly emarginate, shoulders rounded, slightly impressed transversely before the
middle, the apices slightly divergent at suture and separately rounded. Antenne with intermediate
joints submoniliform.

Length 12-21 millim.

Hab. Mexico (coll. F. Bates), Jalapa (Hoge), San Antonio de Arriba, Jacale, Durasnal
(Sallé).

This is the commonest species of Nosoderma in Mexico. Hoge captured it in great
abundance at Jalapa.

Some very small examples (12 millim. in length) from Durasnal, San Antonio, and
Jalapa have the elevations of the elytra more interrupted and prominent, especially

towards the apex.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1884. HH

HETEROMERA.

14. Nosoderma anceps.

Closely allied to WV. exsculptum, but comparatively shorter and broader; the thorax shorter, less narrowed

towards the base, and the elevations stronger; the margins of the elytra more closely denticulate.

Length 15-22 millim.

Hab. Mexico, Jalapa, Mexico city (Hoge).
Probably not distinct from WV. exsculptum, and taken by Hoge at the same locality.

15. Nosoderma impressum.

Allied to WV. ewsculptum, but broader; the thorax wider in front, more narrowed and sinuous behind, the

elevations stronger, the hind angles a little more prominent, the granules coarser, more scattered, and less
regularly arranged; the elytra strongly and broadly impressed on each side before the middle, the
elevations more interrupted and irregular, those towards the apex stouter and stronger, those towards the
base curving inwardly and interrupted by the impressions, the shoulders are slightly truncated obliquely,
the apices a little divergent at the suture and separately rounded, the margins towards the apex some-
what coarsely denticulate, the granules a little coarser and more scattered. Antenne with the intermediate
joints longer than the rest and obconic.

Length 17-20 millim.

Hab. Mexico (coll. F. Bates), Jacale (Sallé).

Five examples. Sometimes labelled WV. denticulatum, Sol.,in collections; it does not

agree, however, with the description or figure of that species; it is perhaps a form of

exsculptum.

16. Nosoderma sparsum. (Tab. II. fig. 12.)

Elongate, narrow and rather depressed, dull black, sparsely clothed with dark brown scales, the surface

(except the head) with scattered, shining, rather coarse granules. Head smooth; prothorax much longer
than broad, a little narrowed towards the base, the anterior angles broadly rounded and produced, hind
angles slightly prominent and obtuse, base a little produced and subtruncate, the disc with a long sinuous
ridge on each side, between which and the lateral margins there is a large shallow impression, the granules
on the disc larger, coarser, and more scattered than on the ridges and at the sides, with a smooth central
line distinct from the middle to the base, obsolete in front; elytra broadly flattened, the suture raised and
with interrupted ridges, only one of which is at all distinct, this starting from the middle of the hase ends
some distance before the apex in a rounded but not very prominent elevation, the margins a little raised
and with a short rounded elevation a little beyond the termination of the dorsal ridge, between the eleva-
tions are irregular rows of smooth, shallow impressions, the elevations with fine shining granules closer and
more crowded along the suture than towards the sides, shoulders rounded and not prominent, base broadly
and feebly emarginate, apices not divergent at the suture, but equally rounded. Antenne with the ninth
joint much broader than the eighth, last joints very broad and rounded at the apex. The thorax beneath
coarsely, the meso- and metasternum and ventral segments more finely and closely, granulate; fifth ventral
segment smooth, and with a few fine raised points towards the hind margin,

Length 16-19 millim.

Hab. Guatemaua, Desconsuelo, Pachoc, Totonicapam (Champion).

This species is pretty common under loose bark of fallen pines at elevations of from

00 to 11,000 feet.

Proportionately longer and narrower than any of the allied species, and the elevations
the elytra less prominent.

ARZOSCHIZUS.—DACODERUS. 51

Group STENOSIDES.

A few genera of this group are found in Chili, and one in North America; the
remainder in the Old World, many species occurring in the south of Europe.

ARZZOSCHIZUS.
Areoschizus, Leconte, Ann. Lyc. New York, v. p. 188; Horn, Revis. Ten. N. A. Trans. Am. Phil.
Soc. xiv. p. 274; Lec. & Horn, Class. Col. N. A. p. 866 (1883).
This genus, recorded from California and New Mexico, has lately been received from
the north of Mexico just within our boundary; the four recorded species are stated to
occur beneath stones in hot, dry, desert regions.

1. Arzoschizus costipennis.
Areoschizus costipennis, Lec. Ann. Lyc. New York, v. p. 188*; Horn, Revis. Ten. N. A. Trans. Am.
Phil. Soe. xiv. p. 274°.

Hab. Nort America! ?.—Mexico, Northern Sonora (Morrison).

Group DACODERIDES.

This group consists of a genus peculiar to the Southern United States and to the

West Indies.
DACODERUS.

Dacoderus, Leconte, Proc. Acad. Phil. 1858, p. 74; Class. Col. N. A. 1862, p. 216; Horn, Revis.
Ten. N. A. p. 275 (1870); Lec. & Horn, Class. Col. N. A. p. 365 (1883).

Two species only are known of this genus—one found in North America, from

California to the Gila river, and just within our limits; the other in the island of

Santo Domingo.
These insects greatly resemble Rhyssodes; they are stated to occur beneath stones, or

under bark, in very dry places, and to feign death very persistently.

1. Dacoderus striaticeps.
Dacoderus striaticeps, Lec. Proc. Acad. Phil. 1858, p. 74°; Thoms. Arcana, i. t. 12. f.6; Horn,
Revis. Ten. N. A. p. 2767; Lec. & Horn, Class. Col. N. A. p. 365°.

Hab. Nortu America, Fort Yuma}, Vallecito in California to Fort Grant in Arizona?,
junction of the Colorado and Gila rivers a,

This species is found just on our northern boundary.

Subfam. ASIDIN.

This subfamily, as understood here, will include those species placed in it by Horn
and Leconte, Nyctelia and allies so numerous in South America, and others. Nearly

HH 2

52 HETEROMERA.

all the species have the intermediate coxal cavities open externally, and the trochantin
visible and usually very prominent; in Astrotus, however, the cavities are almost
closed, and the trochantin scarcely visible; the third and fourth ventral segments
without a coriaceous hind margin. Exceedingly few species of Asidinee are found in

our country south of Mexico.

Group ASIDIDES,

The species of this group are numerous in Mexico and the Southern States of North
America; none have yet been received from south of Mexico. Two or three new
genera described here are perhaps best placed in this group.

ASIDA.

Asida, Latreille, Hist. nat. Crust. et Ins. x. p. 269 (1804) ; Lac. Gen. Col. v. p. 160 (1859) ; All.
Abeille, vi. p. 159 (1869); Horn, Revis. Ten. N. A. p. 286 (1870) ; Lec. & Horn, Class. Col.
N. A. p. 370 (1883).

Stenomorpha, Sol. Ann. Soc. Ent. Fr. v. p. 487, t. 12. f. 9-14 (1836).

Pelecyphorus, Sol. loc. cit. p. 467; Lac. Gen. Col. v. p. 159; Lec. Class. Col. N. A. part 1,
p. 221 (1862).

Euschides, Lec. Ann. Lyc. New York, v. p. 127 (1852); Journ. Ac. Phil. iv. p. 19 (1858); Lac.
Gen. Col. v. p. 162 (1859).

Philolithus, Lac. Gen. Col. v. p. 157 (1859).

I have not retained Pelecyphorus, Philolithus, or Euschides as distinct from Asida; it
appears impossible to separate them satisfactorily. The New-World Astd@ are probably
confined to the southern parts of North America and to Mexico. The North-American
forms are mostly well known, but of the Mexican species few have been described till
now, though existing in many collections.

The species are numerous in Mexico, though none have yet been received from south
of that country; it is possible one or two may occur in Guatemala.

The Asida tropica, Kirsch, from Bogota, judging from the description, appears to
have little to do with Asida, the length given is 43 millim.; the locality, Chili, given
by Solier for A. asidoides is probably in error for Mexico. Some species of Asida, as
A. marginata, lirata, polita, convera, convexicollis, &c., found in Arizona and the
country adjacent to our northern limit, may yet occur in Northern Mexico.

Certain of the Huschides group have a very different facies from Asida, several super-
ficially resembling Eleodes, but species occur intermediate which might be placed in
either. Huschides is well represented in Mexico, and the species numbered 24-35

belong to it; one or two species (A. villosa and subpilosa) are covered with long, erect
or decumbent, hairs.

The different species are found beneath stones in dry arid districts.

ASIDA. 53

1. Asida mexicana.

Pelecyphorus mexicanus, Sol. Ann. Soc. Ent. Fr. 1836, p. 469, t. 11. f. 11-16"; Dupont, Dej. Cat.
ord ed. p. 207.

Pelecyphorus pistrinarius, Chev. Dej. Cat. 3rd ed. p. 207.

Hab. Mexico! (coll. F. Bates), Tehuacan (Sailé, Hoge).

Apparently a common species, and sent by Hoge in large numbers.

2. Asida rugosissima. (Tab. III. fig. 1.)

Broad, convex, black, the depressions of the surface usually filled with earthy matter. Head dull, finely but
not very closely punctured; prothorax very coarsely and closely punctured, rugulose, strongly transverse,
rounded at the sides, a little broader behind than in front, base bisinuate, hind angles broad and promi-
nent and a little produced behind; elytra short, dilated, strongly rounded at the sides, widest about the
middle, narrowed suddenly and emarginate at the shoulders just before the base, the sharply toothed
humeral angles hidden beneath the thorax, with two very prominent transversely wrinkled dorsal ridges
confluent behind before the apex, a sharp marginal ridge and a row of flattened transverse elevations
along the suture, the intervals very coarsely and transversely wrinkled; antenne with intermediate joints
scarcely longer than broad; the outer apical angle of the anterior tibiz with a short, blunt tooth.
Beneath dull, closely and finely punctured.

Length 15-20 millim.

Hab. Mexico, Hacienda de San Miguelito, Saltillo in Coahuila (Dr. Palmer).

Four examples. Allied to Asida sordida, Lec., from New Mexico, but broader and
shorter, the elytra more coarsely wrinkled, &c.

3. Asida interrupta.

Broad, convex, a little flattened above, black, the depressions usually filled with earthy matter. Prothorax
rugulose, transverse, sides rounded, a little wider at the base than at the apex, hind angles acute and pro-
duced behind, base bisinuate ; elytra short, rounded at the sides, widening a little from the base to about the
middle, emarginate at the shoulders, humeral angles acutely toothed and hidden beneath the base of the
thorax, with two transversely wrinkled dorsal ridges confluent before the apex, a sharp marginal ridge,
and the suture a little raised and wrinkled, the intervals strongly wrinkled transversely; anterior tibiz
with the outer apical angle produced into a blunt tooth. Beneath finely but not very closely punctured.

Length 17 millim.

Hab. Mexico, Ciudad in Durango 8100 feet (Forrer).

One example. Allied to A. rugosissima, but smoother and flatter, the elytra less
narrowed towards the base, the hind angles of the thorax produced and more acute,
&c.: shorter and flatter than A. sordida and its varieties.

“3

4, Asida funesta.

Oblong oval, convex, a little depressed above, black, slightly shining. Head transversely impressed in front;
prothorax coarsely and closely punctured, rugulose, transversely rugulose along the lateral margins,
rounded at the sides, narrowed in front, the anterior angles produced, narrowed and sinuate behind, the
hind angles produced and prominent, though not acute, and slightly overlapping the elytra, base bisinuate ;
elytra somewhat dilated, widened from the base to beyond the middle, rather suddenly narrowed behind,
and the apex a little produced, humeral angles rounded, with a very prominent dorsal ridge starting from

HETEROMERA.

the base and obsolete before the apex, and a sharply defined marginal ridge, midway between the marginal
and dorsal ridges there is [in some specimens] another ridge not reaching the base, the suture is indistinctly
raised and slightly punctured, the ridges are connected by raised, prominent, transverse, sinuous wrinkles,
the wrinkles finer and more numerous along the margin; outer apical angle of anterior tibiz with a sharp
tooth. Beneath with scattered, coarse punctures and short longitudinal wrinkles; epipleurse with coarse,
scattered punctures, vertical.

Length 15-19 millim.

Hab. Mexico (coll. F. Bates), Puebla (Sadié).

Six examples.

5. Asida clathrata. (Tab. III. fig. 2.)

Pelecyphorus clathratus, Sallé in litt.

Oblong oval, convex, depressed above, black with an wneous tinge, rather shining. Head transversely impressed

in front; prothorax coarsely rugulose, the disc with a more or less smooth sinuous ridge on each side, and
two rounded impressions near the centre, the ridges defined externally by an impression not reaching the
base, rounded at the sides, a little broader than long, narrowed and sinuate behind, hind angles produced
and prominent, though not acute, and overlapping the base of the elytra, narrowed in front with the angles
produced and prominent, base bisinuate; elytra flattened, dilated, widened from the base to beyond the
middle, with two flattened interrupted dorsal ridges, obsolete before the apex, and the outer of which
often indistinct and not reaching the base, a marginal ridge sharply defined and slightly reflexed, the suture
a little raised, flattened, and finely transversely strigose, the marginal and dorsal ridges and the suture
are connected by transverse wrinkles, leaving each interstice with a series of oblong impressions, the
whole surface with fine scattered punctures, humeral angles rounded; epipleure vertical, with scattered
punctures ; a sharp spine at outer apical angle of the anterior tibia. Beneath with widely scattered fine
punctures.

Length 14-17 millim. (2 9.)

Hab. Mexico (coll. F. Bates), Oaxaca (Hoge), Tehuacan, Cuernavaca (Sallé).

This fine species is not. very closely allied to any other known to me.

6. Asida morbillosa.

Pelecyphorus morbillosus, Lec. Proc. Acad. Phil. ix. p. 74 (1858) *.
Philolithus morbillosus, Lac. Gen. Col. v. p. 725.
Asida morbillosa, Horn, Revis. Ten. N. A. p. 2847.

Hab. Nortu America, Lower California ?.—Mextico, Sonora (Morrison).

7. Asida asidoides.

Pelecyphorus asidoides, Sol. Ann. Ent. Soc. Fr. 1836, p. 471, t. 11. f. 177.
Asida asidoides, Lac. Gen. Col. v. p. 161, nota.

Hab. Mexico (ex coll. Sturm).—? Cutt 1.

Three examples. This species is labelled Asida asidoides in the Sallé collection, and

agrees fairly well with Solier’s description. The locality given, Chili, is probably a
mistake.

ASIDA. 55

8. Asida forreri. (Tab. III. fig. 3.)

Broad, depressed, dull black, with scattered: brown scaly hairs. Prothorax transverse, rugulose, closely and rather
coarsely punctured, with a few, small, indistinct, smooth elevations, lateral margins thin and expanded,
wider behind than in front, rounded at the sides, narrowed and sinuate behind before the outwardly
directed subacute hind angles, narrowed and very feebly sinuate in front, the anterior angles produced and
prominent, base bisinuate; elytra broad, flattened, broader than the thorax at the base, a little widened
to about the middle, somewhat abruptly narrowed behind, and the apex a little produced, shoulders raised
and the angles obtuse, with an acute distinct marginal ridge obsolete before the apex, and three irregular
rows of large shallow impressions, the impressions separated one from another by transverse wrinkles and
some indistinct longitudinal elevations; outer apical angle of anterior tibise with a sharp tooth, femora
and tibie coarsely punctured. Beneath smooth, with a few exceedingly fine punctures or scratches.

Length 13 millim.

Hab. Mexico, Ventanas (Forrer).

One example. Allied to the North-American Asida opaca and A. mancipata, Horn’

9. Asida foveolata.
Pelecyphorus foveolatus, Sol. Ann. Soc. Ent. Fr. 1836, p. 472°.
Pelecyphorus porcatus, De}. in litt.

Hab. Mexico! (coll. F. Bates), Capulalpam, Yolos, Peras (Sallé), Jalapa, Oaxaca
(Hoge).

10. Asida tristis.

Broad, short, slightly depressed, black, scarcely shining. Prothorax transverse, very coarsely and closely
punctured, rugulose, rounded at the sides, a little narrowed and sinuate behind before the not very
prominent hind angles, base bisinuate, with an indistinct (sometimes obsolete) smooth central line;
elytra short, dilated, rounded at the sides, widest about the middle, a little broader at the base than the
thorax, humeral angles rounded, with three fine dorsal ridges (the outer not reaching the base) obsolete
behind, the suture a little raised, and a sharp well-defined marginal ridge, the interstices finely and
irregularly wrinkled transversely and with scattered fine punctures; outer apical angle of anterior tibie
with a short tooth; legs short, femora and tibie coarsely rugulose. Beneath with scattered rather coarse
punctures, the ventral segments smoother with scattered punctures and indistinct longitudinal scratches.

Length 12-14 millim.

Hab. Mexico (coll. F. Bates), San Antonio de Arriba (Sad/é), Las Vigas (Sallé, Hoge).

Labelled Asida (Pelecyphorus) tristis in the Sallé collection, the name I have adopted.
Sent in some numbers by Hoge.

11. Asida suturalis. (Tab. III. fig. 4.)

Oblong oval, rather convex, black, sometimes with an seneous tinge, with scattered light-brown scale-like
hairs, slightly shining. Head slightly impressed in front; prothorax coarsely and closely punctured,
rugulose, scarcely broader than long, slightly rounded at the sides, narrowed and feebly sinuate before
the base, the hind angles straight much produced and overlapping the elytra, a little narrowed towards tho
front, the anterior angles prominent, with a smooth raised central line and two or three indistinct smooth
irregular elevations on each side, base bisinuate ; elytra slightly rounded at the sides, widest about the
middle, but little narrowed towards the base, the base broader than the thorax, humeral angles raised
and almost rounded, with two (rarely three) indistinct interrupted flattened dorsal ridges (often obsolete)
and a sharp marginal ridge almost reaching the apex, the interstices with scattered shallow feeble longi-

56 HETEROMERA.

tudinal impressions towards the suture and fine transverse wrinkles towards the margins, the entire
surface sometimes with a few scattered indistinct punctures, the suture 1s depressed and flattened through-
out its entire length; outer apical angle of the anterior tibie with a short blunt tooth. Beneath shining,
with fine widely scattered punctures, the punctures a little coarser and closer along the sides and on the
last ventral segments.

Length 13-15 millim. (¢ 9.)
Hab. Mexico (coll. F. Bates, Sallé), Oaxaca, Almolonga (Hége).

Nine examples.

12. Asida longipennis. (Tab. III. fig. 5, ¢ -)

Elongate, rather convex, black, sparsely clothed with brown scales, Head impressed in front, and with an
indistinct impression between the eyes; prothorax scarcely broader than long, closely and coarsely punc-
tured, rugulose, rounded at the sides, the lateral margins slightly reflexed, slightly narrowed and sinuate
behind before the rectangular hind angles, narrowed in front, the anterior angles prominent and slightly
pointed, with a smooth central line, the disc with two rounded impressions on each side—one near the
middle and another a little behind and nearer the lateral margin, base feebly bisinuate almost truncate ;
elytra long, somewhat parallel, a little widened from the base to beyond the middle, narrowed rather
suddenly behind with the apex a little produced, a little wider at the base than the thorax, with three
well-defined smooth dorsal ridges (the outer short, not reaching the base) confluent behind the middle, a
marginal ridge nearly reaching the apex and connected behind by a spur from the first dorsal ridge, the
suture raised for its entire length, the interstices with scattered punctures ; antenne thin, intermediate
joints long and obovate; outer apical angle of the anterior tibia with a long sharp spine, femora and
tibie coarsely punctured. Beneath densely but not coarsely punctured.

Length 13-15 millim. (¢ @.)

Hab. Mexico, San Antonio de Arriba, San Andres (Salé).

Two examples. Labelled Pelecyphorus longipennis, Chev., in the Sallé collection.

13. Asida induta. (Tab. III. fig. 6.)

Oblong oval, dull black, clothed with ferruginous scale-like hairs. Head with a rounded impression between
the eyes, transversely impressed in front, finely and somewhat closely punctured ; prothorax transverse,
rounded at the sides, closely and rather finely punctured, margins a little raised and expanded, narrowed
and sinuate behind, the hind angles almost rectangular and not produced, narrowed and feebly sinuate in
front, the anterior angles produced and pointed, the base almost truncate; elytra rounded at the sides,
the humeral angles rounded, a little broader at the base than the thorax, widest about the middle, with
three not very prominent dorsal ridges—the first distinct only at the base, obsolete behind, the second
confluent before the apex with a marginal ridge and enclosing the shorter third dorsal ridge, interstices
with a few scattered shallow punctures, the entire surface densely clothed with scales; outer apical angle

of anterior tibia with a sharp tooth; femora and tibis coarsely punctured. Beneath coarsely and densely
punctured.

Length 12 millim.
Hab. Mexico (coll. F. Bates).

One example. I know of no near ally to this species.

14. Asida guanajuatensis.

Oblong oval, rather convex, somewhat densely clothed with light brown or ferruginous scale-like hairs. Pro-
thorax a little broader than long, closely and coarsely punctured, rugulose, the disc with two rounded

ASIDA. 57

impressions on each side towards the base and an indistinct central groove, rounded at the sides, narrowed
and sinuate towards the base, the hind angles produced and overlapping the elytra, narrowed in front and
the anterior angles somewhat prominent, base bisinuate; elytra broader than the thorax at the base,
rather short and dilated, widest behind the middle, rounded at the sides, humeral angles obtuse, with a
network of raised lines which enclose a series of three or four interrupted rows of shallow depressions, the
depressions usually filled with the scale-like hairs; antennze short, stout ; outer apical angle of the anterior

tibize with a sharp tooth. Beneath slightly shining, coarsely but not very closely punctured.
Length 12-15 millim.

Hab. Mexico (coll. F. Bates), Guanajuato (Sallé).

Six examples. Labelled Ologlyptus guanajuatensis, Dugés, in the Sallé collection.

15. Asida scutellaris. (Tab. III. fig. 9, 3.)

Oblong oval, rather convex, black, somewhat densely clothed with ferruginous or brown scales. Head trans-
versely impressed in front, finely punctured; prothorax broader than long, closely and rather coarsely
punctured, rugulose, with a distinct smooth central raised line, and an indistinct oblique impression on
each side towards the base, rounded at the sides, narrowed and sinuate behind, hind angles very promi-
nent, produced and overlapping the elytra, narrowed in front, the anterior angles a little prominent and
rounded, base slightly produced in the middle and almost rounded ; elytra broader than the thorax at the
base, sides rounded, short and dilated about the middle (?) or longer and slightly widened (3), with
three prominent rounded smooth shining ridges—the first two confluent behind, and the third not reaching
the base, and a sharp marginal ridge confluent just before the apex with the united first and second, the
suture raised and prominent, the intervals with matted light brown appressed scaly hairs and in the centre
of each a more or less distinct line dividing the scales into two rows; anterior tibiee toothed at outer
apical angle; prosternum prominent behind, scarcely declivous; scutellum with a smooth central keel.
Beneath sparingly but rather coarsely punctured.

Length 14-18 millim. (¢ @.)

Hab. Mexico (coll. F. Bates), Puebla (Sallé), Almolonga, Jalapa, Oaxaca (Hége).

16. Asida fallax. (Tab. III. fig. 8.)

Oblong oval, rather convex, black, sparingly clothed with brown scaly hairs. Head transversely impressed in
front; prothorax broader than long, closely and rather coarsely punctured, rugulose, with a smooth
central raised line, rounded at the sides, narrowed in front and behind, slightly sinuate before the base,

_ the base almost rounded in the middle, hind angles produced and overlapping the elytra; elytra broader
than the thorax at the base, rounded at the sides, widest about the middle, humeral angles obtuse and
raised, with three fine ridges—the first two confluent behind, the third not reaching the base, and a
marginal ridge confluent just before the apex with the united first and second, the suture raised and pro-
minent, the second, third, and marginal ridges sometimes connected by one or two transverse raised lines,
the interstices with matted dark-brown scaly hairs and in the centre of each indications of a darker
central band; anterior tibiee with a sharp spur at the outer apical angle; scutellum with a central keel.
Beneath with coarse or fine scattered punctures, prosternum a little prominent raised and rounded
behind.

Length 15 millim. (¢ 2.)

Hab. Mexico, Guanajuato, Toluca (Sallé), Mexico city (Dr. Palmer).

Five examples. Closely allied to A. scutellaris, but with the ridges of the elytra
much finer and less prominent &c. Labelled Asida fallax, Chev., in the Sallé

collection.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1884. II

58 HETEROMERA.

17. Asida laticollis. (Tab. III. fig. 7.) :

Oblong oval, rather convex, dull black, densely clothed with brown scaly hairs. Head transversely me ie
in front; prothorax finely and very densely punctured, rugulose, with a smooth indistinct centra raised
line, broad, transverse, rounded at the sides, very feebly sinuate and scarcely narrowed behind, hind angles
produced, prominent, straight, and overlapping the elytra, narrowed in front, the anterior angles prominent
and obtuse, base feebly bisinuate and subtruncate in middle; elytra as wide as or a little wider than the
thorax at the base, rounded at the sides, broadest about the middle, humeral angles obtuse, with three
fine ridges—the first two confluent behind, the third not reaching the base, and a marginal ridge
confluent just before the apex with the united first and second, the suture raised and prominent, the two
outer dorsal and the marginal ridges sometimes connected by one or two transverse raised lines, the
interstices with matted dark-brown scaly hairs and in the centre of each a darker line dividing the lighter
scales into two rows; anterior tibie with a sharp tooth at outer apical angle ; scutellum with a central
keel. Beneath finely and closely punctured ; prosternum produced behind and rounded, subhorizontal.

Length 17-18 millim.

Hab. Mexico (coll. F. Bates), Guanajuato (Salle).

Four examples. Closely allied to A. fallax, from which it differs in being larger,
broader, and longer, the thorax broader and more strongly transverse, more finely
and closely punctured, with the hind angles straighter and more produced, and the base
straighter; the head smoother, the antenne a little shorter, &c.

18. Asida favosa.

Oblong oval, rather convex, dull black, clothed with dark-brown scaly hairs. Head broad, transversely
impressed in front, finely and sparingly punctured ; prothorax finely and very densely punctured, rugulose,
with a smooth shining central raised line, transverse, narrowed and feebly sinuate behind, hind angles
produced, prominent, and overlapping the elytra, narrowed in front with the angles prominent but not
acute, base bisinuate and the central lobe a little produced and subtruncate; elytra broader than the
thorax at the base, sides rounded, somewhat dilated from the base to a little beyond the middle, humeral
angles a little raised and obtuse, with three smooth fine interrupted ridges (the outer not reaching the base)
and a sharp marginal ridge, these ridges unite before the apex and are more or less connected by a few raised
transverse lines, the suture raised and smooth, the interstices densely clothed with dark brown scales;
anterior tibie truncated at apex, bluntly toothed at outer apical angle; scutellum with a central keel;
antenn rather stout, intermediate joints scarcely longer than broad. Beneath slightly shining, ventral

segments sparingly and finely punctured; prosternum prominent behind, rounded at apex, subhorizontal.
Length 17 millim. ( @.)

Hab. Mexico, Guanajuato (Sal/é).

One example. Closely resembling A. /aticollis and A. fallax, and perhaps a variety
of the latter.

19. Asida similata.

Oblong ovate, rather convex, dull black, clothed with dark-brown scales. Head transversely impressed in
front; prothorax rugulose, somewhat coarsely, closely, and irregularly punctured, with a smooth central
raised line, lateral margins rather strongly rounded, a little swollen and reflexed, and sinuate and narrowed
behind, hind angles produced, outwardly directed, and overlapping the elytra, narrowed and rounded
towards the front, the anterior angles prominent and rounded, base bisinuate, the central lobe subtruncate;
elytra a little broader than the thorax at the base, strongly rounded at the sides, widest about the middle,
humeral angles obtuse and hidden by the hind angles of the thorax, with three fine ridges (the outer not

ASIDA. 59

reaching the base), the suture raised and smooth, and a marginal ridge, the dorsal and marginal ridges
confluent behind and the two outer and the marginal connected by one or two raised transverse lines, the
interstices with densely matted dark-brown scaly hairs; anterior tibiz with outer apical angle sharply
toothed; scutellum with a central keel; antenne short and stout. Beneath slightly shining, ventral

segments sparingly and finely punctured ; prosternum prominent behind, rounded at apex.
Length 18 millim. (?.) |

Hab. Mexico (coll. F. Bates).

One example. Closely allied to A. favosa, &c., but with the margins of the thorax
swollen and slightly reflexed, more strongly sinuate before the base, and the hind angles
outwardly directed.

Of the five closely allied species here described it is not unlikely that A. similata,
A. fallax, and A. favosa may eventually prove to be forms of one species; but
A. scutellaris and A. laticollis seem distinct enough—the former by its thickened
prominent elytral ridges, and the latter by its very broad transverse thorax.

20. Asida dissimilis. (Tab. III. fig. 10, ¢.)

Oblong oval, a little depressed above, dark reddish brown, densely clothed with brown scaly hairs. Head deeply
impressed in front; prothorax transverse (@), or about as long as broad (¢), closely and finely punc-
tured, rugulose, with a smooth raised central line, the disc with a rounded impression on each side near
the middle and an oblique impression on each side at the base, rounded at the sides, narrowed and sinuate
behind, the acute hind angles slightly overlapping the elytra, narrowed in front and the angles a little
prominent, the lateral margins raised and slightly reflexed, base strongly bisinuate ; elytra a little wider
than the thorax at the base, rounded at the sides and a little dilated about the middle ( @ ), subparallel
and scarcely widening from the base (<d), humeral angles obtuse and a little raised, with three fine
ridges—the first indistinct (sometimes obsolete) and second confluent a little beyond the middle, the third
short, not reaching the base, enclosed by the second and a marginal ridge, the two latter confluent before
the apex; outer apical angle of anterior tibie with a sharp tooth; legs and antenne stout, intermediate
joints of latter subtransverse ; trochantin small. Beneath coarsely and closely punctured.

Length 11-13 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates, Sallé).

Five examples. This species has much the appearance of certain Ologlypti, but
agrees better in structural characters with Asida.

21. Asida palmeri. (Tab. III. fig. 12.)

Oblong ovate, dark reddish brown, shining. Head closely and rather coarsely punctured, feebly impressed
transversely in front; prothorax transverse, wider behind than in front, narrowed and sinuate behind
just before the slightly prominent subacute outwardly directed hind angles, narrowed in front, the anterior
angles broadly triangular and prominent, base broad nearly straight and fitting close to the elytra, lateral
margins strongly reflexed and crenulate, disc sparingly and finely, and the base and sides coarsely punc-
tured or rugulose; elytra a little narrowed at the base, widest about the middle, the base broad, almost
straight, and a little wider than the thorax, with a marginal ridge [prominent at the shoulders, obsolete
before the apex], and traces of two or three obsolete ridges, the outer only of which is at all distinct, and

_ represented by a short raised line not reaching the base and close to and parallel with the margin, humeral
angles raised and prominent, obtuse, the surface with scattered fine shallow impressions ; anterior tibize

Il2

60 . HETEROMERA.

with a sharp prominent curved tooth at outer apical angle. Beneath slightly shining, very finely and

densely strigose.
Length 21 millim.

Hab. Mexico, San Luis Potosi (Dr. Palmer).

One example.

99. Asida lata. (Tab. III. fig. 18.) ,
Broad oval, convex, black, shining. Head impressed in front, finely and sparingly punctured; prothorax
transverse, the lateral margins a little dilated, broad, slightly reflexed, and swollen, the sides rounded, but
little narrowed behind, narrowed in front, with the obtuse anterior angles a little prominent, hind angles
obtuse, a little produced, and slightly overlapping the elytra, base bisinuate, and a little produced in the
middle and rounded, disc smooth, the reflexed margins rugulose and crenulate; elytra at the base broader
than the thorax, short, but little narrowed towards the base, widest about the middle, the marginal carina
represented by a short thickened ridge only at the shoulders, humeral angles obtuse, with indistinct rows
of feeble longitudinal elevations and scattered shallow punctures, or nearly smooth (the elevations obsolete)
with a few very fine scattered indistinct punctures; anterior tibie with a sharp tooth at outer apical
angle. Beneath almost smooth.
Length 15-16 millim.

Hab. Mexico, Hacienda de San Miguelito, San Luis Potosi (Dr. Palmer).

Four examples.

23. Asida marginicollis. (Tab. III. fig. 16.)

Oblong ovate, convex, black, shining. Head transversely impressed in front, sparingly and finely punctured ;
prothorax smooth or almost imperceptibly punctured, rather convex, the lateral margins swollen and
reflexed with scattered rather fine punctures, slightly rounded at the sides, but little narrowed behind,
the hind angles (formed by a continuation of the swollen margin) blunt, a little produced and slightly
overlapping the elytra, a little narrowed in front with the angles obtuse, base rounded; elytra smooth or
with a few very indistinct fine scattered punctures or scratches, broader than the thorax, the obtuse
humeral angles thickened and raised and creased within, rounded at the sides, widest a little behind the
middle, the marginal carina obsolete, apices very slightly divergent at the suture; anterior tibiz with a
short tooth at outer apical angle. Beneath smooth, almost impunctate.

Length 17-19 millim.

Hab. Muxico, Guanajuato (Sallé).

Three examples. This species may be known by its swollen reflexed thoracic
margins. A. lata and A. marginicollis differ from typical Asida (Euschides) in having
the hind angles of the thorax overlapping the elytra, and the elytra at the base wider
than the thorax.

24. Asida villosa. (Tab. III. fig. 13.)

Broad, short ovate, convex, brownish black, slightly shining, pubescent, above densely clothed with long erect
fulvous hairs. Head faintly impressed on each side in front, finely and sparingly punctured ; prothorax
transverse, the disc strongly and transversely convex and impunctate, lateral margins broad ana reflexed
crenulate, and with a few coarse scattered impressions within, broader at the base than in front, the sides
strongly rounded, narrowed and feebly sinuate in front with the anterior angles acute a a little
produced, rounded behind to the inwardly curved obtuse scarcely prominent hind angles, base trisinuate
broadly impressed in the middle and with a rather prominent tubercle on each side: elytra almost

ASIDA. 61

impunctate, short, broad, a little narrowed at the base, rounded at the sides, widest a little behind the
middle, humeral angles obtuse, with a crenulate marginal ridge starting from the shoulder and obsolete
before the apex, base emarginate and raised on each side of the large triangular scutellum, concave in the
middle; anterior tibie with a blunt tooth at outer apical angle. Beneath dull, the ventral segments
exceedingly finely transversely strigose and with a few scattered punctures along the sides and on the last
segment.

Length 15 millim.

Hab. Mexico, Puebla (Sallé), Tehuacan (Hége).

This species, which belongs to the Huschides group, has no near ally, so far as I
am aware.

25. Asida subpilosa.
Stenomorpha subpilosa, Sol. Ann. Ent. Soc. Fr. 1836, p. 490, t. 12. f. 10, 13°.

Hab. Mexico !, Puebla (Sal/é), Tehuacan (/6ge).
This fine large species was sent in plenty by Hoge.

26. Asida pubescens.

Closely allied to A. sudpilosa, and differing from it as follows:—The prothorax is a little more finely punc-
tured, the elytra, instead of being clothed with long erect fulvous hairs, are almost imperceptibly
pubescent; the femora and tibie coarsely rugulose, shining, and with scattered short fulvous hairs ;
narrower and more parallel, and the upper surface almost glabrous.

Length 25 millim.

Hab. Muxico (Saillé).

One example. This and the two following species (A. difficilis and A. thoracica) are
closely allied, and till we obtain more material it is difficult to say whether they are

really distinct.
27. Asida difficilis. (Tab. III. fig. 11.)

Oblong ovate, reddish black, shining. Head with scattered coarse punctures and an impression on each
side in front; prothorax longer than broad, the sides rounded, equally narrowed in front and behind,
anterior angles pointed, acute, and outwardly directed, hind angles rounded and almost obsolete, the
base slightly rounded, feebly emarginate, and with a rather broad triangular impression in front of the
scutellum, lateral margins crenulate, slightly reflexed and coarsely rugulose within, the disc with scattered
fine punctures, the sides with coarse scattered impressions ; elytra long, rounded at the sides, a little
narrowed towards the base, widest a little beyond the middle, base about as wide as the thorax, slightly
rounded emarginate, and the margin a little raised, humeral angles obtuse, with widely scattered fine
punctures, some very indistinct transverse scratches, and traces of two or three ridges, the usual marginal
ridge quite obsolete; legs reddish brown, the outer apical angle of anterior tibise with a sharp tooth.
Beneath shining; the ventral segments with scattered fine short transverse scratches, and a few small

punctures towards the apex.
Length 24-25 millim.

Hab. Mzxico, San Luis Potosi, Hacienda de San Miguelito (Dr. Palmer).

Var. Similar but with the thorax shorter, more convex, more rounded at the sides, and the hind angles
obsolete; the elytra widened behind, &e.

Hab. Mexico (Sail/é).

62 HETEROMERA.

98. Asida thoracica.

Oblong oval, black, shining. Head closely and very coarsely punctu
a little broader than long, the sides rounded, narrowed and sinuate just before the rectangular hind

angles, narrowed in front with the anterior angles prominent and triangular, base slightly rounded, feebly
emarginate, and with a broad impression in the middle, coarsely and rather closely punctured on the disc,
rugulose along the sides, lateral margins crenulate and reflexed ; elytra long, subtruncate at the base,
rounded at the sides, a little narrowed towards the base, base a little narrower than the thorax, humeral

angles almost rounded, a marginal ridge distinct only at the shoulder, the surface somewhat coarsely but

not very closely punctured ; anterior tibice blunt toothed at outer apical angle; femora and tibiee very
stout, coarsely rugulose. Beneath dull, finely and closely strigose ; prosternum with a prominent blunt
tubercle behind. .

Length 25 millim.

Hab. Mexico (Sallé).

One example. Closely allied to A. pubescens, but more coarsely and closely punctured,
the central basal impression of the prothorax deeper, the upper surface glabrous, &c.

red, broadly impressed in front ; prothorax

29. Asida rufipes. (Tab. III. fig. 14.)

Obovate, broad, black, shining. Head with a feeble impression on each side in front, sparingly punctured ;
prothorax not very convex, very finely and sparingly punctured on the disc, and with rather coarse
scattered punctures along the sides, transverse, the sides slightly rounded, narrowed and sinuate behind
before the subacute, but not prominent, hind angles, narrowed in front with the anterior angles acute and
prominent, base subtruncate, lateral margins narrowly expanded and reflexed; elytra broad, convex,
strongly rounded at the sides, wider at the base than the thorax, much widened behind, the basal margin
a little raised, and sinuate on each side to the humeral angles which are slightly prominent, with scarcely
any indication of a marginal ridge, and the surface coarsely and somewhat closely punctured ; scutellum
large, prominent, transversely triangular ; legs red, anterior tibiee with a sharp tooth at outer apical angle.
Beneath shining ; ventral segments with scattered, very fine, longitudinal wrinkles, and a few scattered
punctures at the apex.

Length 19 millim.

Hab. Mexico, San Luis Potosi (Dr. Palmer).

One example.

30. Asida costata.
Stenomorpha costata, Sol. Ann. Ent. Soc. Fr. 1836, p. 490°.

Hab. Mexico ! (Truqut).

I have seen but one specimen of this species contained in the Sallé collection.

31. Asida umbrosa. (Tab. III. fig. 17.)

Oblong oval, dull black, scarcely shining. Head transversely impressed in front, smooth; prothorax trans-
verse, the disc smooth and convex, the lateral margins broadly dilated, a little reflexed, and coarsely
punctured and wrinkled transversely within, the sides slightly rounded, narrowed in front, and the
anterior angles a little prominent and rounded, but little narrowed behind, the base bisinuate and a little
produced and rounded in the centre; elytra smooth, narrower than the thorax at the base, rounded at the
sides, widest behind the middle, feebly margined (almost rounded) from the shoulders to beyond the

ASIDA. 63

middle, base emarginate, humeral angles obtuse, a little raised and creased within; anterior tibiz with a
rather long tooth at outer apical angle. Beneath almost smooth.
Length 20-26 millim.

Hab. Mexico (coll. F. Bates), Guanajuato (Sallé).
Six examples. Belongs to the Huschides group.

32. Asida obovata.
Euschides obovata, Lec. Ann. Lyc. New York, v. p. 127 (1852)".
Asida obovata, Horn, Revis. Ten. N. A. p. 288 (1870).

Hab. Norta America, Gila river 1—Muxico, Alamos (Buchan-Hepburn).

Three examples taken by Mr. Hepburn agree fairly well with the description of this

species, except that the elytra are smoother and depressed along the suture, and the
thorax a little less convex.

33. Asida blapsoides.
Stenomorpha blapsoides, Sol. Ann. Ent. Soc. Fr. 1836, p. 491, t. 12. f. 12-14°.

Hab. Mexico! (coll. F. Bates, Truqui), Puebla, Guanajuato (Sallé), Mexico city,
Oaxaca, Jalapa (Hége).

Apparently common in Mexico. The examination of a considerable number of
specimens has convinced me that this is a most variable species. ‘The prothorax is
in some examples very finely, in others coarsely and closely punctured, with the
extended lateral margins raised, though scarcely reflexed, and feebly or strongly
rounded, transverse, or as long as broad; the elytra very variable in shape and
sculpture, the marginal carina obsolete, or represented by a raised line from the
shoulder to a little beyond the middle, the humeral angles usually a little prominent,
the surface finely and sparingly or closely and coarsely (rarely the punctures confluent
and almost rugulose) punctured; intermediate forms occur so that it seems impossible
to separate them. ‘Three examples from Puebla have the thorax transverse; the elytra
shorter and broader, and the marginal carina distinct towards the base ; the upper surface
closely and rather coarsely punctured. Another example has the elytra reddish brown
along the suture; others have the elytra, instead of being nearly smooth, coarsely punc-
tured and rugulose.

34. Asida blanda. (Tab. III. fig. 19.)

Closely allied to A. blapsoides, but with the lateral margins of the smooth more convex prothorax a little
narrower, reflexed, and swollen (anteriorly); the elytra smooth, less parallel, more swollen behind, and
depressed along the suture; the anterior tibiw with a short, blunt tooth at outer apical angle; with
no trace of punctuation, except along the lateral margins of the thorax and on the anterior margin of
the head.

Length 20 millim.

Hab. Mexico, Guanajuato (Sad/é).

64 HETEROMERA.

One example. From A. obovata and A. convexa, Lec., it may be known by its smoother
surface, and the slightly broader, though less reflexed, lateral thoracic margins.

35. Asida sphericollis. (Tab. III. fig. 15.)

Obovate, black, shining. Head broadly impressed in front, anterior margin finely punctured; prothorax trans-
verse, strongly and transversely convex, smooth, very narrowly margined, the sides rounded, hind angles
obsolete, front angles obtuse and scarcely prominent, the base rounded; elytra convex, about as broad as
the thorax at the base, gradually widened to beyond the middle, then narrowed, with the apex a little pro-
duced, the marginal carina obsolete, and represented only by a very short ridge at the shoulders, humeral
angles obtuse, finely and sparingly punctured, the suture depressed towards the base, and with traces
of dorsal grooves; anterior tibie with a short tooth at outer apical angle. Beneath shining, almost
impunctate ; intercoxal process raised, and level with the metasternum.

Length 13 millim.

Hab. Mexico, San Luis Potosi (Dr. Palmer).

One example. ‘This is the smallest and narrowest Asida (Euschides) I have yet seen ;
it resembles somewhat A. convexicollis from Arizona, though very much smaller than

that species.
TISAMENES.

Head deflexed, sunk into the prothorax up to the eyes; lateral margins of the front swollen and rounded;
epistoma broadly but not very deeply emarginate; labrum prominent, triangularly emarginate, clasped
by the mandibles; mentum large, transverse, fitting closely to the short bluntly toothed side pieces
of the submentum; gula deeply sunk into the prothorax, the side-pieces of the submentum alone
visible; ligula concealed; eyes transversely oval; prothorax with the lateral margins angular and greatly
expanded; elytra with prominent ridges, clothed towards the suture with rows of densely matted
decumbent hairs; antenne very short, the joints widening but little outwardly, third joint twice as
long as second, fourth to ninth decreasing in length, tenth broad, subtriangular, eleventh short, small,
and rounded at the apex, and clothed with short spiny hairs; femora, tibie (the latter truncate at
the apex, and the outer angle with a short, blunt tooth), and tarsi very stout, densely clothed with
scales, smooth, without any indication of tubercles or punctures, the tarsi with short spiny hairs, and
not sulcate beneath ; middle coxal cavities widely open externally, trochantin large and prominent; inter-
coxal process broadly rounded in front, and with the anterior margin raised; epipleure broad, vertical,
narrowed towards the base and apex.

Allied to Asida, and resembling A. elata, Lec., somewhat in the form of the thorax,
but with stouter limbs, the head deflexed, &c.
One species from Mexico.

1. Tisamenes truquii. (Tab. IT. fig. 15.)

Elongate, strongly convex, dark reddish brown, pubescent, densely clothed with scale-like hairs. Head broadly
impressed in front, indistinctly punctured; prothorax with the lateral margins raised and greatly
dilated a little before the middle, and produced into a broad, subtriangular, blunt tooth (rounded in front
narrowed and emarginate behind to the base), sinuate before the anterior angles, which are blunt,
slightly truncate, and not prominent, emarginate in front, the base almost truncate, the hind angles obtuse;
finely rugulose, the dise on each side with a sinuous fulvous band, slightly spotted or marked wath yellow:
elytra elliptic in form, convex, much narrowed towards the base, rounded at the sides, scutellum smnall,
humeral angles produced into a prominent, outwardly directed, short, blunt tooth, with a marginal and nes
dorsal ridges obsolete before the apex, the dorsal ridges clothed with densely matted dark brown hair, the
suture a little raised, bare and shining, the interval between the inner dorsal ridge and the suture with

UCALEGON. 65

yellowish white depressed hairs. Beneath dull, densely and finely punctured; prosternum declivous
behind, rounded, not prominent.
Length 18-19 millim. (¢ 9.)

Hab. Mexico (Truqui, Sallé, coll. F. Bates), Mexico city (Hége).

This fine species is labelled Philolithus truquii in the Sallé collection, but is, I believe,
still undescribed.

UCALEGON.

Mentum rather large, transverse, emarginate in front, projecting far beyond, but fitting closely to the bluntly
toothed side-pieces of the submentum; labrum prominent, deeply emarginate, clasped by the mandibles ;
ligula concealed; eyes narrow, strongly transverse; epistoma truncate in front; antenne with the
third joint more than twice as long as the second, fourth to ninth decreasing in length, obconic, tenth
broad, eleventh partly sunk in the tenth, small, short, rounded at the apex; last joint of maxillary
palpi securiform; thorax with the angles prominent, lateral margins expanded’; elytra flattened nearly
to the apex, then abruptly declivous, apex a little produced, prettily maculated with velvety spots, and
with a curved dorsal ridge; epipleure broad, vertical, separated from the elytra by a sharply defined
marginal carina; intermediate coxe widely separate, the cavities open externally, trochantin prominent ;
femora rough, shining, with irregular coarse punctures and short scattered hairs; outer apical angle of
anterior tibie produced into a long, sharp tooth; tibie and tarsi rather densely clothed with long,
depressed, bristly hairs, the tarsi not sulcate beneath; intercoxal process broad, and truncate in front ;
prosternum declivous behind, the apex a little produced and rounded; upper surface densely clothed with
scaly hairs; scutellum long, triangular.

Closely allied to Astda. Founded on one species from Mexico.

1. Ucalegon pulchellus. (Tab. II. fig. 17.)

Moderately elongate, convex, flattened above, dull black, pubescent, above densely clothed with brown scaly
hairs. Head deeply impressed in front; prothorax broader than long, the lateral margins expanded about
the middle and rounded, strongly narrowed before and behind, the hind angles rectangular, the anterior
angles prominent and produced into a large subtriangular blunt tooth, the base truncate, with a central
groove obsolete in front, the disc with a curved, feeble, smooth elevation on each side, the elevations well
defined on either side by short, matted, dark brown hair, the surface with scattered fine raised points or
granules, the disc rather smooth, the sides rugulose; elytra as wide as the thorax at the base, widened to
beyond the middle, humeral angles obtuse, the base subtruncate, with a dorsal ridge, obsolete behind the
middle, curving outwardly and parallel with the marginal ridge, and several velvety dark brown markings
or spots, a large triangular spot on each side about the middle and near the suture, from which a few large
or small spots extend parallel with the dorsal ridge to the base, enclosing a lighter brown space, towards
the apex and on each side between the finely denticulated bare dorsal and marginal ridges are a few
similar but smaller velvety spots, the suture is marked with dark brown, and a few brown spots are also
scattered over the surface. Beneath coarsely and closely punctured, ventral segments finely and closely ;
epipleure with large coarse punctures.

Length 14-16 millim.

Hab. Mexico (coll. F. Bates), Tehuantepec (Sallé).
Three examples. Labelled Philolithus sumichrasti, Dugés, in the Sallé collec-

tion.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1884. KK

66 HETEROMERA.

MICROSCHATIA.

Microschatia, Solier, Ann. Soc. Ent. Fr. 1836, p. 474, t. 11. f. 19-22; Lec. Ann. Lyc. New York, v.
p. 129; Lac. Gen. Col. v. p. 157 (1859) ; Lec. Class. Col. N. A. part 1, p. 221 (1862); Horn,
Rev. Ten. N. A. p. 281 (1870); Lec. & Horn, loc. cit. 1883, p. 369.

Three species from North America and one from Mexico constitute this genus.

1. Microschatia punctata.
Microschatia punctata, Sol. loc. cit. p. 475, t. 11. £. 22°.

- Hab. Mexico! (Sallé, coll. F. Bates).

ASTROTUS.

Astrotus, Leconte, Journ. Ac. Phil. iv. p. 19 (1858) ; Class. Col. N. A. p. 221 (1862) ; Horn, Revis.
Ten. N. A. p. 290 (1870).

Two species of this genus have been described from Texas; three others are now
added from Mexico.

1. Astrotus debilis. (Tab. IT. fig. 22.)

Oblong oval, depressed above, dull black, densely clothed with earth-like scales, slightly pubescent. Head with
the lateral margins of the front swollen and rounded; prothorax broader than long, the sides rounded,
much narrowed behind, and sinuate before the slightly prominent subrectangular hind angles, slightly
narrowed in front, and the anterior angles a little produced and prominent, base truncate, the surface
with fine raised points, closer and more distinct along each side of a central groove and on the lateral
margins; elytra flattened, a little narrower than the thorax at the base, narrowed and slightly emarginate
at the shoulders, widening gradually to beyond the middle, then suddenly narrowed, and the apex produced
and rounded, humeral angles obtuse, the base truncate, with a slightly prominent marginal ridge, curving
inwards before the apex, and a few short, oblique, or sinuous elevations.

Length 6-9 millim.

Hab. Mexico (Sallé), Tehuacan (Hoge).

Six examples.

2. Astrotus limosus. (Tab. II. fig. 21.)

Oblong oval, slightly convex, black, densely clothed with earth-like scales. Head transversely impressed
between the eyes; prothorax broader than long, narrowed in front and behind, sides rounded, hind angles
rectangular, base truncate, anterior and lateral margins slightly reflexed and swollen, disc with a few
scattered almost obsolete flattened sinuous elevations; elytra widest a little beyond the middle, base
truncate, fitting closely to and as wide as the thorax, with three (two dorsal and one marginal) serrated
ridges—the marginal starting from the shoulder and turning off obliquely before the apex to meet the
first dorsal, which starts from near the base, midway between these and parallel with them is another
shorter ridge not reaching the base, nor confluent with the others behind, the two dorsal ridges connected
a little behind the middle by a short transverse elevation.

Length 7 millim.

Hab, Mexico (Sallé).

One example. Allied to A. debdilis, but more convex, with the thorax less narrowed
behind, the elytra not suddenly narrowed at the base, &c.

ASTROTUS.—SICHARBAS. 67

3. Astrotus seticornis. (Tab. II. fig. 20.)

Oblong oval, depressed above, dark reddish brown, clothed with brown scaly hairs, pubescent. Prothorax as
long as broad, or subtransverse, the lateral margins a little reflexed and strongly rounded, and narrowed
and sinuate before the base, hind angles rather obtuse and subrectangular, narrowed and feebly sinuate in
front, the anterior angles prominent, slightly produced and triangular, base bisinuate, and the central lobe
a little produced and rounded, surface finely and very closely punctured, with an indistinct smooth central
groove, obsolete in front, and a rounded impression on each side before the middle; elytra depressed,
narrow at the base, as wide as the thorax, emarginate at the shoulders, widening a little to beyond the
middle, then abruptly narrowed, and the apex a little produced and rounded, with a sharp marginal ridge
turning inwards before the apex, a short sinuous dorsal ridge at the base, the suture a little raised, a
distinct y-shaped elevation on each side about the middle, and several curved or transverse elevations
behind, surface very finely and closely punctured; anterior tibize with a sharp tooth at outer apical angle ;
antenne long, apparently 10-jointed, the eleventh joint short, very small, sunk in the tenth, and slightly
rounded at apex, third to ninth decreasing in length, moniliform, all the joints with a few short, stout,
projecting bristly hairs. Beneath very closely and finely granulose ; epipleural fold narrow, rather distinct ;
intermediate coxal cavities almost closed externally, trochantin very small.

Length 8-9 millim.

Hab. Mexico (coll. F. Bates), Toluca (Sallé).

Var. humeralis.

Similar to A. seticornis, but a little larger, more densely clothed with (light brown) scales; the thorax more
strongly rounded and sinuate at the sides, and the hind angles and central lobe a little more prominent ;
the humeri rounded and scarcely emarginate, &c.

Hab. Mexico, Toluca (Sallé).

This species, though differing greatly from typical Astrotus in the structure of the
antenne, is perhaps better placed here for the present; it may possibly form a new

genus.

SICHARBAS.

Mentum transverse, completely filling the gular cavities, and contiguous to the mandibles ; ligula hidden; last
joint of maxillary palpi large, subtriangular; labrum transverse, prominent, passing the mandibles ;
epistoma broad, truncate in front; lateral margins of the front raised, a little swollen and rounded;
antenne with long bristly hairs, long, apparently 10-jointed, the last two joints subconnate, large, and
slightly pointed at the apex, third twice as long as the second, fourth to ninth decreasing in length, and
obconic; prothorax long, the hind angles much produced and lobiform; elytra subparallel, flattened
nearly to the apex, then abruptly declivous, with the apex produced and rounded; epipleure vertical,
broad, a little raised along the inner margin; intermediate coxal cavities open externally, trochantin
visible, small; intercoxal process broad, subtruncate in front, slightly raised in the middle; tarsi with
long silky hairs beneath, not sulcate ; anterior tibiz with a sharp tooth at outer apical angle.

Founded on a Mexican species captured long ago by Truqui. Somewhat allied to
Astrotus seticornis in the structure of the antenne, but I think generically distinct.

1. Sicharbas lobatus. (Tab. II. fig. 23.)

Elongate, rather convex, depressed above, dark reddish brown, densely clothed with light brown scales, slightly
pubescent. Head with a slight longitudinal impression between the eyes; prothorax as long as broad,
widest towards the front, widened from the anterior angles nearly to the middle, then suddenly narrowed
to the base, the hind angles much produced, lobiform, rounded at the apex, curved a little outwardly, and
overlapping the elytra, anterior angles a little produced and obtuse, base with a rounded central lobe, and

KK 2

68 HETEROMERA.

a circular emargination on each side near the angles, with an interrupted central channel, and a rounded
impression on each side about the middle, the lateral margins raised towards the front, the surface finely
rugulose and densely clothed with scales; elytra wider than the thorax, the sides almost straight, slightly
widening from the obliquely truncated shoulders nearly to the apex, with a sharp, well-defined marginal
ridge turning abruptly inwards before the apex and nearly reaching the suture, a dorsal ridge not reaching
the middle, the suture raised, and a number of short, oblique, or transverse ridges more numerous and
distinct behind, the incurved part of the marginal ridge angulate near the suture, the surface densely
clothed with scales. Beneath opaque, densely and finely punctured.
Length 11 millim.

Hab. Mexico (Truqut).

One example.
OLOGLYPTUS.
Ologlyptus, Lacordaire, Gen. Col. v. p. 158 (1859) ; Lec. Class. Col. N. A. p. 221; Horn, Rev. Ten.
N. Am. p. 289; Lec. & Horn, loc. cit. p. 870 (1883).
Pactostoma, Leconte, Journ. Acad. Phil. n. s. iv. p. 19.
Stenosides, Sol. Ann. Soc. Ent. Fr. v. p. 484 (1836).

A few species of this genus are known from the Southern United States and Mexico ;
I have followed Horn, Leconte, and others in adopting Ologlyptus in preference to
Stenosides, for reasons stated by Lacordaire.

1. Ologlyptus anastomosis.

Asida anastomosis, Say, Journ. Acad. Phil. ii. p. 256 (18238)*.

Pactostoma anastomosis, Lec. Journ. Ac. Phil. iv. p. 19 (1858) ; Col. Kansas, p. 18, t. 2. f. 11
(1859) *.

Microschatia anastomosis, Lec. Proc. Acad. Phil. vi. p. 446.

Pelecyphorus anastomosis, Lec. Ann. Lyc. Nat. Hist. N. Y. v. p. 129.

Ologiyptus anastomosis, Lac. Gen. Atl. t. 52. f.23; Gen. Col. v. p. 159° (1859) ; Horn, Rev. Ten.
N. A. p. 290°.

Hab. Norvta America®, Arkansas 1, Colorado*+, Kansas? 4, New Mexico 2.—Mexico
(Sallé, coll. F. Bates).

I have seen four examples from Mexico; these have the elevations of the elytra
irregular and interrupted.

2. Ologlyptus graciliformis.
Stenosides graciliformis, Sol. Ann. Soc. Ent. Fr. v. p. 486, t. 12. f. 5-8 (1836).

Hab. Mexico! (Sallé), Tehuacan, Oaxaca (Hoge), Guadalupe (Lohr).

3. Ologlyptus canus.

Oblong ovate, rather convex, flattened above, black, densely clothed with yellowish-brown scales, slightly
pubescent. Prothorax broader than long, strongly rounded at the sides, almost equally narrowed in front
and behind, very feebly sinuate before the obtuse hind angles, front angles obtuse, and a little produced,
base truncate, the surface with scattered punctures, and an indistinct smooth central line ; elytra widened
from the base to beyond the middle, then narrowed to apex, base narrower than the prothorax, subtruncate,

OLOGLYPTUS. 69

with scattered punctures and three ridges—a marginal and a dorsal ridge turning obliquely inwards towards
the suture behind, where they become confluent, and enclose a shorter ridge.
Length 8 millim.

Hab. Mexico (Sal/é).

One example. Labelled Philolithus canus in the Sallé collection.

4. Ologlyptus sinuaticollis. (Tab. II. fig. 19.)

Rather elongate, convex, black, densely clothed with brown earthy-looking scales, pubescent. Prothorax
transverse, sides rounded, and a little narrowed and sinuate in front before the prominent produced anterior
angles, narrowed and strongly sinuate behind before the rectangular hind angles, base subtruncate, dorsal
surface with scattered coarse punctures; elytra with the sides rounded, widest about the middle, base
almost truncate, and narrower than the thorax, humeral angles obtuse, with scattered impressions, and
three ridges—a marginal and a dorsal ridge turning obliquely inwards towards the suture behind, where
they become confluent, and enclose a shorter elevation.

Length 10 millim.

Hab. Mexico, San Luis Potosi (Dr. Palmer).

One example. Allied to O. graciliformis, but narrower, the elytra less widened
behind, &c.

5. Ologlyptus bicarinatus. (Tab. II. fig. 18.)

Oblong oval, dull black, with scattered scaly hairs, pubescent. Head finely and sparingly punctured, trans-
versely impressed in front; prothorax transverse, finely and sparingly punctured, the sides rounded,
narrowed and sinuate behind, hind angles rectangular, a little narrowed in front and sinuate, the anterior
angles rather prominent and acute, base broad, and subtruncate; elytra wider than the thorax at the
base, rounded at the sides, widest about the middle, humeral angles obsolete and rounded, with two dorsal
ridges—the first starting from near the shoulder, curving a little inwardly behind, the second shorter,
not reaching the base, and a marginal ridge, these ridges obsolete a little before the apex, separate, and not
confluent behind, between the first dorsal ridge and the suture there is a slight indication of another
obsolete ridge, the surface with a few widely scattered fine punctures; anterior tibiee with a short, blunt
tooth at outer apical angle; anterior and intermediate tibie finely denticulate externally ; femora coarsely
punctured ; tarsi with rather long hairs beneath; scutellum smooth; trochantin visible, small. Beneath
closely and rather finely punctured.

Length 14 millim.

Hab. Muxtco, Oaxaca (Hoge).

One example. A species difficult to locate satisfactorily.

6. Ologlyptus planatus. (Tab. I. fig. 16.)

Oboval, depressed above, black, densely clothed with dark brown earthy-looking scales, slightly pubescent.
Head transversely impressed towards the front ; prothorax broader than long, broadest about the middle,
the sides rounded, feebly emarginate before the obtuse hind angles, and a little narrowed in front and
behind, anterior angles a little produced, base subtruncate, the surface with scattered fine indistinct
raised points, and with a smooth central line; elytra much flattened to beyond the middle, abruptly
declivous behind, gradually widening from the base to beyond the middle, then suddenly rounded with the
apex a little produced, very feebly emarginate behind the obtuse humeral angles, base narrower than the
prothorax, and almost truncate, with a marginal ridge starting from the shoulder and turning off towards

70 HETEROMERA.

the suture before the apex, the surface flattened, with scattered shallow impressions and no trace of tubercles
or ridges ; antenne with intermediate joints a little longer than broad; trochantin distinct.
Length 8-9 millim.

Hab. Mexico, Cuernavaca (coll. Ff. Bates).

Two examples.
ZAMOLXIS.

Labrum prominent, clasped by the mandibles, transverse, emarginate in front; mentum rather small, trans-
verse, rounded at the sides in front, feebly emarginate, closely fitting into and filling up the gular
cavities ; side-pieces of the submentum produced into a long blunt tooth on each side; ligula entirely
concealed; last joint of maxillary palpi broadly triangular, subsecuriform; antenne with the third
joint twice the length of the second, fourth to ninth decreasing in length, obconic, tenth broad, subtri-
angular, eleventh small, rounded at apex; intermediate coxal cavities open externally, trochantin promi-
nent; prosternum declivous behind, rounded; intercoxal process broadly rounded in front; epipleure
suddenly narrowed at each end and with a short fold at the apex; tarsi with long stiff hairs beneath, not
sulcate; eyes transverse, short; thorax strongly dilated at the sides, hind angles quite obsolete; elytra
rounded at the sides, costate; anterior tibiz with a strong tooth at outer apical angle; scutellum subtri-
angular, coarsely punctured.

Founded on a single species from Mexico. Allied to Asida, and, like Poliorcetes,
difficult to separate therefrom by good structural characters, though at first sight
appearing very different.

1. Zamolxis dilatatus. (Tab. II. fig. 24.)

Oblong ovate, convex, somewhat depressed above, black, slightly shining. Head broad, transversely impressed
in front, the lateral margins a little swollen and prominent, very coarsely punctured ; prothorax transverse,
much dilated at the sides, widest a little bebind the middle, strongly narrowed behind, the hind angles
obsolete, narrowed in front, and the anterior angles rounded and not produced or prominent, anterior
margin slightly emarginate, base slightly rounded, the expanded lateral margins a little raised and strongly
crenulate, the disc with course scattered punctures, the sides coarsely rugulose ; elytra somewhat depressed,
rounded at the sides, gradually widened from the base to beyond the middle, the apex a little produced,
the humeral angles obtuse, the base emarginate, narrower than the thorax at the base, with three smooth
ridges—a dorsal ridge distinct towards the base, a prominent ridge confluent with the first at the base and
parallel with and confluent before the apex with the third or marginal ridge, the suture a little raised, and
the surface with scattered coarse shallow rounded impressions. Beneath shining, coarsely punctured, the
epipleuree and ventral segments sparingly, the rest closely; mentum with some very coarse rounded
impressions.

Length 17 millim.

Hab. Mexico, Puebla (Sallé).

Two examples.
POLIORCETES.

Mentum placed upon a broad peduncle, transverse, triangularly emarginate, nearly filling the gular cavities,
not contiguous to the mandibles, the sides rounded in front; side-pieces of submentum prominent and
produced into a broad triangular tooth on each side; last joint of the maxillary palpi securiform ;
labrum prominent and clasped by the mandibles; ligula almost hidden; antenne with third joint
more than twice as long as second, fourth to eighth decreasing in length, obconic, ninth larger and
subtriangular, tenth transverse, very broad, eleventh small and rounded at the apex; prothorax trans-
verse, anterior angles prominent; elytra flattened, swollen behind, with regular finely denticulated
ridges; tarsi sulcate, and with fine hairs beneath; intercoxal process broadly rounded in front, slightly

POLIORCETES.—BRANCHUS. 71

concave, and the anterior margin raised; epipleure broad, with a short distinct ridge at the apex; inter-
mediate coxal cavities open, trochantin prominent; scutellum transversely triangular, impunctate; anterior
tibie with sharp tooth at outer apical angle; meso- and metasternum broad, prosternum comparatively
narrow and slightly thickened and produced behind; scutellum broad, triangular.

I have founded this genus upon a single Mexican species. Closely allied to Asida.
The elytra are much swollen behind and flattened, giving the insect very much the
appearance of a Platesthes, from which, however, it differs in several important points;
it is also allied to Ologlyptus, but differs in the structure of the palpi and coxal cavities.

1. Poliorcetes platesthoides. (Tab. II. fig. 25.)

Ovate, rather broad, depressed, dull, dark reddish brown. Head transversely impressed in front, with some
scattered punctures, and a shallow indistinct groove between the eyes; prothorax transverse, the lateral
margins rounded and crenulate, slightly expanded and reflexed, narrowed in front and behind, the anterior
angles prominent, triangular, hind angles obtuse, the base almost truncate, the disc finely and sparingly
punctured, the sides transversely rugulose, with a shallow indistinct central groove; elytra flattened,
swollen behind, rounded at the sides, narrower than the thorax at the base, widened from the base to
beyond the middle, then narrowed and the apex a little produced, base sinuate and emarginate on each
side of the scutellum, humeral angles obsolete and rounded, with three finely denticulated prominent
ridges—a dorsal (distant from the suture, curved, and almost parallel with the margin), and a marginal
ridge, confluent before the apex, and enclosing a shorter ridge, the surface with fine widely scattered
impressions. Beneath with the thorax and mesosternum coarsely punctured, the ventral segments and
metasternum with fine widely scattered punctures, the mentum with some very coarse rounded

impressions.
Length 14-18 millim.

Hab. Mexico, Ticomavaca (Hége).
Taken in plenty by Hoge.

Group NYCTELIIDES.

This group will include Psectrascelis (a genus allied to Nyctelia), recorded from
Mexico; the tribe Branchini of Horn and Leconte; and a genus of somewhat doubtful
position.

PSECTRASCELIS.
Psectrascelis, Solier, Ann. Soc. Ent. Fr. 1836, p. 311, t. 6. f. 9-16; Lacord. Gen. Col. v. p. 170.

This is a South-American genus, found in Chili, Peru, and Bolivia; one species has
been recorded from Mexico, but, as Lacordaire says, probably erroneously.

1. Psectrascelis subdepressus.
Psectrascelis subdepressus, Sol. loc. cit. p. 318".
Hab. Mexico!?
BRANCHUS.

Branchus, Leconte, Class. Col. N. America, part 1. p. 222 (1862); Horn, Rev. Ten. N. A. p. 291;
(1870); Lec. & Horn, Class. Col. N. A. 1883, p. 371.

Three species are recorded of this genus—one from Florida, one from the island of

HETEROMERA.

New Providence (Bahamas), and a third from Nicaragua; an allied genus (Scotinus) is
found in Brazil.

1. Branchus obscurus. (Tab. III. fig. 20.)

Branchus obscurus, Horn, Proc. Acad. Phil. 1866, p. 398°.

Hab. Mexico (coll. F. Bates); GuaTEMALA, near the city (Champion); Nicaraaua?.

ANECTUS.

Anectus, Horn, Proc. Acad. Phil. 1866, p. 399; Rev. Ten. N. A. p. 291 (1870); Lec. & Horn, Class.

Col. N. A. p. 371 (1883).

This genus is unknown to me.

1. Anectus vestitus.

Anectus vestitus, Horn, loc. cit. p. 399’.

Hab. Honpvuras 1,
OXINTHAS.

Mentum broad, trapeziform, emarginate in front; gula with a distinct medial fissure; ligula not very promi-

nent, emarginate in front; the base of the maxille exposed; maxillary palpi slightly dilated, last joint
oval; labrum prominent, emarginate in front; antenne rather thin, widening outwardly; head rather
broad, sunk into the prothorax nearly to the eyes; epistoma emarginate in front; prothorax feebly
bisinuate at the base, the hind angles not prolonged, closely embracing and as wide as the elytra, without
distinct lateral margins; scutellum small; epipleure narrow, suddenly dilated at the base; intermediate
coxe with distinct trochantin, side-pieces reaching the cavities; prosternum horizontal, a little produced,
and the apex rounded; mesosternum slightly concave in front; intercoxal process of abdomen broad,
rounded in front; tibial spurs rather short and stout; anterior tibie slightly curved, outer apical angle
rounded; tarsi stout, spinous beneath; first joint of hind tarsi short; body oval, convex, somewhat
parallel ; ventral segments without coriaceous hind margin.

This genus, difficult to locate satisfactorily, is, I think, best placed near Branchus

and Nyctelia; the convex, somewhat parallel, form is suggestive of certain species of
the South-American genus Praocis (Anthrasomus); but in structure it more nearly.
approaches the former. The short basal joint of the posterior tarsi, the epipleure
dilated at the base, the less prominent ligula, &c. will separate it from the genera of
the group Coniontides ; the larger mentum and corneous hind margin to the ventral
segments, from the succeeding groups.

1. Oxinthas praocioides. (Tab. III. fig. 23, 9 .)

Oval, convex, somewhat parallel, black, shining. Head with scattered coarsish punctures, the epistoma with

a broad shallow impression; thorax a little broader than long, about as wide as the elytra, the sides
rounded and slightly sinuous before the base, the hind angles subrectangular, anterior angles not very
prominent and obtuse, with scattered fine punctures; elytra about twice the length of the thorax C2);
less than twice as long ( ¢'), scarcely wider than the thorax, the humeri slightly swollen and prominent,
with coarse scattered punctures (much coarser than those of the thorax), the suture with some finer
punctures more numerous and distinct towards the apex. Beneath with coarse scattered impressions ;

CRYPTOGLOSSA. 73

the ventral segments smoother, the sides and apex only with coarse punctures; mentum very coarsely
punctured, and with a distinct central groove.
Length 12 millim. (¢ 9.)

Hab. Muxtco, Tehuantepec (Sailé).

Two examples. The thorax in the male of this species is much longer than in the
female, and the elytra are scarcely twice the length of the thorax; the female is less
parallel in form, the thorax transverse, and the elytra twice the length of the thorax.

Group CRYPTOGLOSSIDES.

This group will contain two closely allied genera (Cryptoglossa and Centrioptera)
peculiar to the South-western United States and Mexico; another genus (Schizillus)
occurs a little to the north of our boundary.

CRYPTOGLOSSA.

Cryptoglossa, Solier, Ann. Soc. Ent. Fr. v. p. 680 (1836) ; Lac. Gen. Col. v. p. 1388; Horn, Rev.
Ten. N. A. p. 280; Lec. & Horn, Class. Col. N. A. p. 368.
Asbolus, Lec. Ann. Lyc. New York, v. p. 129.

Four species are now known of this genus, all of which inhabit Northern Mexico
and the country adjacent to our northern frontier.

1. Cryptoglossa bicostata.
Cryptoglossa bicostata, Sol. loc. cit. p. 681, t. 24. f£. 15°.

Hab. Mexico !.

I have not seen this species, described by Solier from a single mutilated example.

2. Cryptoglossa verrucosa.
Asbolus verrucosus, Lec. Ann. Lyc. New York, v. p. 1297.
Cryptoglossa verrucosa, Horn, Rey. Ten. N. A. p. 280°.

Hab. NortH America, deserts of the river Colorado }, Valley of the river Gila 2.

Found abundantly under dead Yuccas along the Rio Gila and just on our northern
boundary.

3. Cryptoglossa mexicana. (Tab. III. fig. 21.)

Opaque, black. Head with a few fine scattered punctures along the anterior margin; prothorax moderately
convex, widened towards the front, the anterior angles very prominent and triangular, the hind angles a
little produced, impunctate ; elytra a little broader than the thorax at the base, moderately convex, with
rows of shallow rounded impressions which become obsolete behind the middle, and a few scattered raised
points at the base; mentum coarsely and rather closely punctured.

Length 17-19 millim.

Hab. Muxtco, Monclova in Coahuila (Dr. Palmer).
Six examples. Near C. levis, Lec.; opaque, broader, and less convex; the thorax

broader, wider in front, flatter and less convex, and the anterior angles more produced ;
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1884. LL

74 HETEROMERA.

the elytra less convex, broader at the base and less rounded at the sides, and with rows
of shallow punctures towards the base.

CENTRIOPTERA.

Centrioptera, Mann. Bull. Mosc. ii. 1848, p. 279; id. Mag. de Zool., 1843, Ins. t. 126; Lac. Gen.
Col. v. p. 186; Horn, Rev. Ten. N. A. p. 278; Lec. & Horn, Class. Col. N. A, p. 368.
Oochila, Lec. Class. Col. N. A. p. 220.
Asbolus, Lec. (part).
Seven species are known of this North-American genus; one is also found in Mexico,
and another just on our northern boundary; the remainder are peculiar to Texas,
Lower California, and Arizona.

1. Centrioptera caraboides. |
Centrioptera caraboides, Maun. loc. cit. p. 280°; id. Mag. Zool. loc. cit.; Horn, Rev. Ten. N. A.
p. 280.

Hab. Norta America, California!.—Mexico, Puebla (Sallé).

An example in the Sallé collection agrees very well with Mannerheim’s description
and figure. C. spiculifera, if the specimens in Mr. F. Bates’s collection are correctly
named, is not identical with this species.

2. Centrioptera muricata.
Centrioptera muricata, Lec. Ann. Lyc. New York, v. p. 142’; Horn, Rev. Ten. N. A. p. 279°.

Hab. Norra America, deserts of the Colorado! ? and Gila rivers 2.

Group CONIONTIDES.

This group is represented, as yet, by one genus (Eusattus) only in Central America.
Allied genera are found in North America—Coniontis in California and Oregon, Celus
on the coast of California, and Celotasxis peculiar to Guadalupe Island west of the
peninsula of Lower California.

EUSATTUS.

Eusatius, Leconte, Ann. Lyc. New York, v. p. 131 (1852) ; Horn, Rev. Ten. N. Am. p. 292; Lec.
& Horn, Class. Col. N. A. p. 371.

Discodemus, Lec. Class. Col. N. A. p. 228.

Conipinus, Lec. loc. cit. p. 223.

A North-American genus, found in Kansas, Arizona, California, Oregon, Colorado,
New Mexico, &c., and extending also into Mexico. Four species only are known as

. BUSATTUS. 75

yet from Mexico ; others probably remain to be discovered in the northern part of that
country.

The different species are found under stones.

1. Husattus nitidipennis. (Tab. III. fig. 22.)
Eusattus nitidipennis, Lec. Ann. Lyc. New York, v. p. 188 (nota)'; New Sp. Col. p. 112; Horn,
Rev. Ten. N. A. p. 294.

Hab. Mexico, Jalapa! (Haldeman), Guanajuato (coll. Sallé).

In this species the elytra are inflated, rounded on the sides, and not margined,
broadest a little before the apex, and covered with fine shallow widely scattered punc-
tures ; the surface glabrous and slightly shining.

2. Kusattus brevis.

Smaller, shorter, and duller than Z. nitidipennis; the thorax more rounded at the sides; the elytra shorter and
less inflated, irregularly wrinkled and covered with scattered coarsish punctures, rarely obsoletely costate ;
the epipleure formed as in that species. The upper surface in fresh specimens covered with a sort of
short pubescence.

Length 10 millim.

Hab. Muxico, Esperanza (Hége).
Captured in great abundance by Hoge.

3. Husattus dubius.
Eusatius dubius, Lec. Ann. Lyc. New York, v. p. 182"; Horn, Rev. Ten. N. A. p. 2947.

Hab. Nortu Americ, deserts of the Colorado and Gila rivers! 2.

Found just on our northern boundary.

4. Kusattus depressus. (Tab. IV. fig. 1.)

Broad oval, depressed above, somewhat parallel, dull black, glabrous. Head coarsely and closely punctured,
the epistoma very feebly emarginate in front ; prothorax comparatively rather long, rather broad in front,
the anterior angles prominent but obtuse, the sides feebly sinuate before the base, smooth ; elytra some-
what parallel, the disc depressed, strongly depressed transversely at the base, rounded on the sides, the
epipleure gradually and broadly widening to, and very sharply defined at, the base, the dividing carina
meeting the hind angles of the thorax and visible from above, with a few scattered fine shallow wrinkles
or impressions, almost smooth ; anterior tibia produced into a very stout blunt tooth at the outer apical
angle, rather coarsely punctured above; prosternum coarsely punctured, horizontal, the apex broad and
rounded.

Length 13 millim.

Hab. Mexico, Alamos (Buchan-Hepburn).

One example. Ofa different facies from any other Eusattus known to me.

LL 2

16 | HETEROMERA,

Subfam. TENEBRIONINA.

With this subfamily we commence a series of species in which the hind margins of
the third and fourth ventral segments are more or less coriaceous, the intermediate
coxee usually with a distinct trochantin.

We adopt in great part, as with the Tentyriine, the arrangement used by Dr. Horn
for the North-American species, the Central-American Tenebrionide, so far as at
present treated, partaking very largely of the character of the fauna of that region.

No species of the tribe Amphidorini has yet been received from our country; the

three North-American genera (Amphidora, Cratidus, and Stenotrichus) are found in
Arizona and California.

Group BLAPTIDES.

This group will include Elwodes only. Allied genera (Embaphion, Trogloderus, and
Discogenia) are found in North America.

ELAODES.

Eleodes, Eschscholtz, Zool. Atlas, iii. p. 9 (1829) ; Solier, Studi Ent. p. 235; Lacord. Gen. Col. v.

p- 148; Lec. Class. Col. N. A. p. 225; Horn, Rev. Ten. N. A. p. 301; Lec. & Horn, Class.
Col. N. A. p. 374.

Xysta, Eschsch. loc. cit. p. 9; Guérin, Mag. Zool. 1884, Mélasomes, p. 30.
Promus, Leconte, Class. Col. N. A. p. 226.

Blapylis, Horn, Rev. Ten. N. A. p. 315.

Eleodes, Gemm. & Harold, Cat. vii. p. 168.

Upwards of 100 species are placed under this genus in Gemminger and Harold’s
catalogue—twenty-six from Mexico, the remainder from North America. Seven
Mexican species (not included in the above catalogue) were described by Say in 1835
in the ‘ Boston Journal of Natural History ;’ some of these are probably identical with
others subsequently described by Solier, and included under other names in Gemminger’s
list. Dr. Horn, in his ‘ Revision of the Tenebrionide of America north of Mexico,’ gives
forty-six species as inhabiting the United States: this author here sinks, as synonyms
or varieties, nearly one third of the previously recorded North-American species.

It is quite impossible, without comparison with the actual types, to identify many of
the Mexican species described by Say and Eschscholtz; the correct determination in
consequence, from description only, of some of the species of these authors is doubtful.
To increase the difficulty of satisfactorily determining or separating the numerous
species of this genus, the shape of the thorax, the structure of the femora, tarsi, &c. is
not always symmetrical or constant, and sometimes different on one side of the body
from the other. Aberrations of this kind are frequent in the Tenebrionide.

We have now to record fifty-two species from Central America, all from Mexico, one
only extending into the highlands of Northern Guatemala, the southern limit of the
genus; ten of these species also inhabit the country adjacent to our northern frontier.

ELAODES. 77

Allowing for some few doubtful species, to be eliminated when those described by the
older authors are properly identified, Mexico will possess about the same number of
species as the United States.

Eleodes is the representative of Blaps in North America, ranging from Hudson's Bay
and Vancouver Island to the “Los Altos” region of Guatemala; the different species.
are almost confined to the western side of the continent and to the country west of the
Rocky Mountains, extending eastward only as far as the Mississippi River. They are
found beneath stones, &c. in great abundance in the arid regions of California, Arizona,
New Mexico, Colorado, Texas, and Mexico; species are found from the sea-coast up to
an elevation. of nearly 11,000 feet.

In South America Elwodes is replaced by Mycterinus*, an allied genus found in
Chili.

1. The basal joints of the anterior tarsi in the male clothed with stout, almost spiny,
hairs beneath, and scarcely dilated. (E.EoDES, Horn.)
A. Anterior femora in the male toothed ; in the female bluntly toothed, or emarginate
near the apex.
a. Elytra in the male with long caudal appendages, in the female subcaudate.

1. Eleodes rugosa.
Eleodes rugosa, Perbosc, Rev. Zool. 1839, p. 263°.
Eleodes caudata, Sol. Studi Ent. p. 2557.
Eleodes rugipennis, Chevr. in litt.

Hab. Mexico 2, Vera Cruz! (Sallé), Jalapa (Hoge).

Sent in numbers by Hoge. These examples vary in size from 22-31 millim. A
species with long caudal appendages to the elytra in the male, the upper surface

coarsely rugulose.

2. Eleodes eschscholtzi. (Tab. III. fig. 24, ¢.)
Eleodes eschscholtzi, Sol. Studi Ent. p. 254".

Hab. Mexico 1, Alamos (Buchan-Hepburn), Presidio (forrer).
Five examples (four males, one female); the largest male measures 35 millim.

(including the caudal appendages of 6 millim.). In this species the posterior tibize of
the male are curved and thin from the base to beyond the middle, and straight and

thickened towards the apex, a character not mentioned by Solier.

b. Elytra feebly caudate in both sexes.

3. Elxodes spinipes. (Tab. IV. fig. 2, ¢.)
Eleodes spinipes, Sol. Studi Ent. p. 253°.
Eleodes blaptoides, Dupont in litt.
* Nycterinus ebeninus, Sol. (Studi Ent. p. 269), is recorded from Mexico; the locality is probably in error

for Chili.

78 HETEROMERA.

Hab. Mzxtco! (coll. F. Bates), Guanajuato (coll. Sallé); San Pedro in Coahuila,
Hacienda de Bleados, San Luis Potosi (Dr. Palmer).

The ten specimens I refer to this species differ from others I refer to #. blaptoides,
Eschsch., in having the thorax less rounded at the sides, less constricted at the base,
and less transverse. The males somewhat elongate; the elytra broader at the base and
more attenuate at the apex than in the female. The anterior femora in the male with
a strong curved tooth, in the female sinuate near the apex; the elytra obsoletely or
distinctly punctate-striate and subcaudate in both sexes. The examples from San Luis
Potosi are more shining, the striz more deeply impressed, and the interstices in some
specimens slightly convex, and each with a row of punctures.

Named £. eschscholtzi, Sol., in the Sallé collection; the elytra in the male, however,
are not strongly caudate as in that species.

4. Eleodes ventricosa.
Eleodes ventricosa, Lec. Proc. Acad. Phil. 1858, p. 186°; Horn, Rev. Ten. N. A. p. 811.

Hab. Norta America, near the Rio Grande in Texas !.—Mexico (coll. F. Bates).

5. Eleodes blaptoides.
Eleodes blapoides, Kischsch. Zool. Atlas, iii. p. 12*; Dej. Cat. 3rd ed. p. 209.

Hab. Mexico! (coll. F. Bates), Yolos (Sailé).

I refer, somewhat doubtfully, three female examples to this species. These specimens —
have the anterior femora on the inner side strongly sinuate near the apex, thus forming
a short blunt tooth; the thorax transverse, convex, strongly rounded at the sides,
somewhat constricted at the base, the anterior angles somewhat acute and projecting
forwards (the anterior margin appearing deeply emarginate), the base subtruncate and
indistinctly margined within; the elytra subcaudate at the apex, obsoletely or distinctly
punctate-striate, the interstices flat, with rows of finer muricate punctures.

6. Elzodes exarata. (Tab. IV. fig. 3, 2.)

Obovate, black, subopaque. Head with scattered fine punctures; prothorax transverse, moderately convex,
widest in the middle, about equally narrowed at the base and apex, the anterior angles prominent and
divergent though not acute, hind angles subrectangular, almost imperceptibly punctate, the base nearly
straight ; elytra rather convex, somewhat ventricose, rounded at the sides, broadest beyond the middle,
the apices feebly caudate, deeply sulcate, the strive with fine muricate punctures, the interstices with fine
scattered punctures and slightly shining, the base slightly raised and the humeri distinct. Beneath
shining; the prosternum strongly declivous behind, the apex produced into a short blunt tooth; the
anterior femora emarginate near the apex ; the spurs of the anterior tibie subequal; anterior tarsi some-
what densely clothed with hairs beneath.

Length 19-20 millim. (9?.)

Hab. Mexico, Hacienda de Bleados, San Luis Potosi (Dr. Palmer).

Two female examples. I know of no near ally to this species.

ELAODES, 79

7. Elzodes hispilabris.
Blaps hispilabris, Say, Journ. Acad. Phil. iii. p. 260'; Am. Ent. £.16; Lec. Complete Writings of
Thomas Say, ii. p. 152.
Eleodes hispilabris, Horn, Rev. Ten. N. A. p- 313%.
Eleodes sulcata, Lec. Proc. Acad. Phil. 1852, p. 67°; loc. cit. 1858, p. 181.
Eleodes convexa, Lec. Pacif. R. R. Reports, App. I. p. 49.
? Eleodes nupta, Lec. Proc. Acad. Phil. 1858, p. 183.
Eleodes lecontei, Harold, Col. Heft. vi. p. 122.
Hab. Nortn Amurica, Missouri !3, Oregon, Arizona, Kansas, Colorado, and Texas 2.
—Mexico, Northern Sonora (Morrison).

The specimens sent by Mr. Morrison have the elytra very deeply sulcate, though
otherwise agreeing with examples from Colorado, &c.

8. Elzodes gracilis.
Eleodes gracilis, Lec. Proc. Acad. Phil. 1858, p. 184+; Horn, Rev. Ten. N. A. p. 3127.
Hab. Nortn America, New Mexico, Arizona, and upper end of the peninsula of
Lower California ?.\—Mzxico, Sonora! (Morrison).

c. Hlytra rounded at the apex.

9. Elzodes obscura.

Blaps obscura, Say, Journ. Acad. Phil. i. p. 259; Lec. Complete Writings of Thomas Say, i.
p. 82°.

Eleodes obscura, Lec. Proc. Acad. Phil. 1858, p. 181; Horn, Rev. Ten. N. A. p. 305’.

Eleodes dispersa, Lec. loc. cit. p. 182°; Horn, loc. cit. p. 805%.

Eleodes deleta, Lec. loc. cit. p. 182°; Horn, loc. cit. p. 305.

Eleodes sulcipennis, Mann. Beitr. 226; Mag. Zool. 1848, Ins. f. 128; Lee. loc. cit. p. 182; Horn,

loc. cit. p. 306 °.
Eleodes arata, Lec. loc. cit. p. 1827; Horn, loc. cit. p. 306.

Hab. Norta America, river Platte}, Creek boundary 3, New Mexico 4°67, Oregon 8,
Nebraska 2, Colorado 2 6, Northern California ®, Nevada ®, Arizona °.—Mzexico, Northern
Sonora (Morrison).

The specimens recently sent by Mr. Morrison from Sonora of this, one of the largest
species of the genus, belong to the form LZ. swlcipennis.

10. Eleodes extricata.
Blaps extricata, Say, Journ. Acad. Phil. iii. p. 261°; Lec. Complete Writings of Thomas Say, ii.

p. 153. |
Eleodes extricata, Lec. Proc. Acad. Phil. 1858, p. 181; Horn, Rev. Ten. N. A. p. 8097.

Eleodes cognata, Hald. Stans. Expl., App. C, p. 876 (1852).
Hab. Nortnu America, Arkansas1, Utah, Eastern Oregon, plains of Kansas and
Nebraska 2.._Mexico, Northern Sonora (Morrison), Monclova in Coahuila (Dr. Palmer).

80 HETEROMERA.

B. Anterior femora unarmed in both sexes; elytra rounded at the apex.

* Upper spur of the anterior tibie in the female longer and stouter than the
lower spur.

11. Eleodes quadricollis.
Eleodes quadricollis, Eschsch. Zool. Atlas, iii. p. 12, t. 14. £.5*; Mann. Beitr. p. 268; Lee. Proc.
Acad. Phil. 1858, p. 181; Horn, Rev. Ten. N. A. p. 308”.
Eleodes omissa, Lec. Proc. Acad. Phil. 1858, p. 186°.
Eleodes vicina, Lec. Ann. Lyc. New York, v. p. 133%.
Hab. Norru America, California coast from San Francisco!2? to San Diego ?, and
inland from San José to Tejon 2, Rio Gila 4—Mexico, Sonora ?.

I have not seen Mexican specimens of EF. guadricollis. In this species the upper
spur of the anterior tibize of the female is in some specimens very long and very much
stouter and longer than the lower spur.

12. Elzodes humeralis.

Eleodes humeralis, Lec. Pac. R. R. Surv. 47th parallel, App. I. p.50; Proc. Acad. Phil. 1858,
p. 182 ; Horn, Rev. Ten. N. A. p. 309°.

Eleodes punctipennis, Chevy. in litt.

Hab. Norra America, Northern California and Oregon 1.—? Mexico (coll. F’. Bates, ex.
Boucard).

There is an example of this species in Mr. F. Bates’s collection labelled as from
Mexico ; possibly there is some mistake about the locality.

13. Eleodes alutacea.

Eleodes alutacea, Sol. Studi Ent. p. 240°; Klug in litt. (¢).

_ Eleodes nitidithorax, Chevy. in litt. (¢).

Eleodes maillei, Sol. loc. cit. p. 247°.

Eleodes subpunctata, Sturm, in litt. (¢ ).

Eleodes punctipennis, Sturm, in litt. (¢).

Eleodes ellipticus, Sturm, in litt. (¢).

Eleodes sommeri, De}. in litt.

Eleodes rugipennis, Chevy. in litt.

? 9 Blaps equalis, Say, Bost. Journ. Nat. Hist. i. pp. 151°-203 ; Lec. Complete Writings of Thomas
Say, ul. p. 657.

Var. ? Blaps obliterata’, Say, loc. cit. p. 657.

Hab. Mexico!?4 (coll. F. Bates), Puebla, Toluca (Sallé), Oaxaca (Hoge), Ciudad
in Durango (forrer).

Rather common in Mexico. £. maillei, Sol., is probably not really distinct from
E. alutacea; it differs in having the elytra more coarsely, confusedly, and almost

ELAODES, 81

rugulosely punctured, and the disc (sometimes) a little more depressed ; intermediate
forms occur. |

LE. equalis, E. obliterata, and E. sommeri are probably smooth forms of this variable
species.

14. Eleodes elongatula.
Eleodes elongatula, Eschsch. Zool. Atlas, iii. p. 13°; Klug, Dej. Cat. 3rd edit. p. 210 (nec Solier).

Hab. Mexico }.

This species, judging from the description (“ Atra, thorace quadrato, antice latiore
punctulato; elytris dorso deplanatis, profunde punctato-striatis; tibiis anterioribus
incurvis ; labro rotundo; long. 54 lin.”), is perhaps identical with EZ. alutacea, Sol., 3.

15. Elzodes maura. (Tab. IV. figg. 43,59.)

? Blaps maura, Say, Bost. Journ. Nat. Hist. i. pp. 151-2031; Lec. Complete Writings of Thomas
Say, i. p. 656.

Eleodes elongatula, Sol. Studi Ent. p. 242? (nec Eschsch.).

A little larger, longer, and duller than £. alutacea, the male differing as follows:—The prothorax less con-
stricted towards the base, almost equally narrowed at base and apex, widest in the middle, the base
slightly rounded, smooth, and almost impunctate ; elytra longer, a little less attenuate towards the apex,
with traces of shallow obsolete grooves, smooth, or with scattered fine punctures, sometimes finely
punctate-striate. The female larger and broader than the female of that species; legs stouter in both
sexes,

Length 14-18 millim. (¢ @.)

Hab, Mextco!”, San Antonio de Arriba, Guanajuato, Parada (Sal/é), Esperanza (Hoge).

Sent in plenty by Hoge. Labelled as above in the Sallé collection ; it is perhaps the
Blaps maura, Say. This species is also allied to L. quadricollis, but smaller, flatter,
and less convex; the thorax broader and more transverse; the female comparatively
shorter in form.

16. Elzodes scapularis.
Blaps levigata, Sturm, in litt. (3).

Oblong ovate, convex, black, shining. Head sparingly and somewhat coarsely punctured; prothorax trans-
verse, moderately convex, rounded at the sides, about equally narrowed at base and apex, widest about
or a little before the middle, feebly emarginate in front, the anterior angles rounded or obtuse, the base
rounded, hind angles obtuse, smooth or with traces of fine scattered punctures ; elytra in the male some-
what elongate, broader and more rounded at the sides in the female, feebly sinuate near the base, widest
about the middle, the base broadly emarginate, humeri prominent and almost meeting the hind angles of
the thorax, smooth or with indistinct fine scattered punctures and transverse wrinkles; anterior femora
unarmed in both sexes; upper spur of the anterior tibiee in the female longer and stouter than the lower
spur; anterior tarsi in the male clothed with short stout spiny hairs beneath; prosternum produced
behind into a short horizontal projection.

Length 13-16 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates, Sallé, ex coll. Sturm), Toluca, Guanajuato (Sallé).
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1884. MM

82 HETEROMERA.

Nine examples. This species may be known from its allies by the somewhat rounded
base of the thorax and prominent humeri ; the disc of the elytra in the male is some-
times a little depressed. . scapularis is best placed near i. maura.

17. Elwodes rotundicollis. (Tab. IV. figg. 63,72.)
? Eleodes rotundicollis, Eschsch. Zool. Atlas, iii. p. 9; Dej. Cat. 3rd edit. p. 209.
? § Blaps parva, Say, Bost. Journ. Nat. Hist. i. pp. 151-2037; Lec. Complete Writings of Thomas
Say, i. p. 658.
Eleodes picipes, Deyr. in litt.
Hab. Muxico1? (coll. F. Bates), Volcan de Orizaba (Sallé), Tehuacan, Las Vigas,
Jalapa, Esperanza (Hoge).

Sent in plenty by Hége. The specimens I refer to this species differ from E. alutacea
in having the thorax more transverse, more strongly rounded at the sides, more narrowed
towards the base, the greatest breadth a little before the middle; the elytra a little
more narrowed towards the base, more rounded at the sides, and with regular rows of
rather coarse or fine punctures, the interstices with scattered finer impressions; the
first joint of the anterior tarsi of the female produced beneath into a blunt tooth
almost as long and stout as the upper tibial spur.

18. Hlzodes connata.
Eleodes connata, Sol. Studi Ent. p. 2438.
Eleodes brevis, Sturm, in litt.
Hab. Mexico (coll. Sturm), Toluca (coll. F. Bates), San Andres, Puebla, Toluca (Sal/é),
Las Vigas (Hoge).

This distinct little species seems to be pretty common, and contained in most Mexican
collections.

19. Eleodes curta. (Tab. IV. fig. 8, ¢ .)

Short ovate, moderately convex, flattened above, black, shining. Head with some very fine scattered punctures ;
prothorax a little broader than long ( 3), transverse ( 2 ), subcordiform, flattened above, the sides rounded
from about the middle to the obtuse front angles and constricted before the base, the hind angles rectan-
gular, base truncate, with scattered exceedingly fine punctures; elytra broader than the thorax at the
base, flattened on the disc, with indistinct rows of fine distant punctures, distinct towards the base, obsolete
at the sides and before the apex, the interstices with a few scattered finer impressions; anterior tarsi of
the male with the basal joints stout and rather thickly clothed with hair beneath ; upper spur of the
anterior tibize longer and stouter than the lower; anterior femora unarmed.

Length 10-11 millim. (¢ 2.)

Hab. Mexico (coll. F. Bates), Toluca (Sadie).
Three specimens. Allied to HL. connata, Sol., but larger and broader; the thorax

more constricted behind, the upper surface much more finely punctured, the basal joints
of the anterior tarsi stouter and more thickly clothed with hair beneath.

ELAODES. 83

20. Klzodes carbonaria.

Blaps carbonaria, Say, Journ. Acad. Phil. iii. p. 260 (1828) ; Lec. Complete Writings of Thomas
Say, ii. p. 152.

Eleodes carbonaria, Lec. Proc. Acad. Phil. 1858, p. 181; Horn, Rev. Ten. N. A. p- 308’.

Eleodes soror, Lec. loc. cit. p. 185°.

Eleodes immunis, Lec. loc. cit. p. 186°.

Var. Eleodes debilis, Lec. loc. cit. p. 185 *.

Hab. Norvu America, Southern Colorado, Eastern Arizona 1, New Mexico 1, Santa
Fé‘, Texas 1?.—Mexico, Sonora? (Dr. Webb, Morrison).

21. Eleodes sulcatula. (Tab. IV. fig. 9.)

Oblong ovate, rather broad and depressed, black, shining. Head with some scattered coarsish punctures;
prothorax broad, transverse, rather flat, strongly rounded at the sides, widest a little before the middle,
slightly narrowed towards the base, feebly emarginate in front, lateral margins distinct and slightly
raised, anterior angles rounded and not prominent, hind angles obtuse, smooth and almost impunctate ;
elytra rather broad, depressed, a little wider than the thorax at the base, feebly rounded at the sides,
somewhat deeply sulcate, the striz feebly and shallowly punctate, the interstices smooth and feebly con-
vex; anterior femora swollen in the middle; anterior tibie slightly curved; spurs of all the tibizw long
and stout; tarsi clothed with stout spiny hairs beneath.

Length 18 millim.

Hab. Mexico (Sallé).

One example. £. sulcatula may be known by its depressed, broad, and somewhat
parallel form and sulcate elytra. Labelled #. melanaria, Sol., in the Sallé collection,

but not agreeing with the description of that species.

92. Eleodes dilaticollis. (Tab. IV. fig. 10, 2 .)

Oblong ovate, not very convex, black, shining. Head with fine scattered punctures, the vertex smoother, the |
epistoma separated from the front by a distinct transverse line; prothorax transverse, as broad as the
elytra, the sides somewhat dilated and strongly rounded, widest about the middle, a little narrower at the
base than at the apex, strongly emarginate in front, the anterior angles broad though not acute, hind
angles obtuse, the base nearly straight, the disc slightly raised in centre of anterior margin, smooth, with
a few scattered very fine punctures along the sides and near the anterior angles; elytra a little wider than
the thorax at the base, the sides slightly rounded, not wider in the widest part than the thorax, the
humeri indistinct, with scattered very fine punctures and no traces of strie ; anterior tibie slightly curved,
the upper spur distinctly longer than the lower; anterior femora swollen and feebly sinuate towards the
apex; anterior tarsi somewhat densely clothed with spiny hairs beneath.

Length 17 millim. ( 9.)
Hab. Mexico, Guanajuato (Sallé).

One example. This species may be known by its comparatively large and dilated

thorax.

MM 2

84 HETEROMERA.

** Anterior tibial spurs in the female subequal.

23. Elzodes longicollis.
Eleodes longicollis, Lec. Ann. Lyc. New York, v. p. 184°; Proc. Acad. Phil. 1858, p. 181; Horn,
Rev. Ten. N. A. p. 311’.
Eleodes haydenii, Lec. Proc. Acad. Phil. 1858, p. 186°. |
Hab. Norra America, river Gilat, New Mexico?, Arizona?, Kansas?, Colorado 2,
river Platte 2,—Mexico, Northern Sonora (Morrison), San Luis Potosi, Hacienda de
Bleados, Parras, and San Pedro in Coahuila (Dr. Palmer).

The specimens sent by Dr. Palmer have the elytra distinctly but finely punctate-
striate ; but intermediate forms occur, and I prefer to consider them as merely varieties
of E. longicollis.

24. Hleeodes ponderosa. (Tab. IV. fig. 11, ¢.)

Oblong ovate, very convex, black, shining. Head with some fine scattered punctures; prothorax strongly
convex, a little broader than long, widest in the middle, about equally narrowed at base and apex, the
sides rounded, feebly sinuate just behind the obtuse anterior angles, hind angles obtuse, with exceedingly
fine scattered punctures; elytra somewhat elongate and attenuate in the male, shorter and more strongly
rounded at the sides in the female, smooth or with scattered very fine punctures, sometimes with indica-
tions of shallow longitudinal grooves; legs stout in the male; anterior femora unarmed in both sexes ;
spurs of the anterior tibiee subequal; prosternum horizontal and produced behind into a short blunt tooth,
rarely rounded and declivous behind.

Length 18-28 millim. (¢ 9.)

Hab. Mexico, Oaxaca, Tehuacan (Hoge), Yolos, Oaxaca (Sallé).

Var. The thorax slightly constricted towards the base, the hind angles in consequence a little more prominent ;
the prosternum rounded and declivous behind.

Length 19-20 millim. ( 9.)
Hab. Mexico, Presidio (forrer).

A large convex species allied to H. longicollis and E. gigantea; from the former it
may be known by its differently shaped thorax and less fusiform outline; from the
latter by its comparatively shorter form and the less prominent anterior angles of the
thorax. . ponderosa varies greatly in size and even in shape; the legs are very stout,
especially in the male, in large examples, thinner in smaller specimens. Small females
are often very puzzling; the variety from Presidio is probably not distinct from
E. ponderosa. Sent in plenty by Hoge.

25. Eleeodes ruida, (Tab. IIL. fig. 25, ¢ .)

Blaps ruida, Say, Bost. Journ. Nat. Hist. i. pp. 151-203 (1835)*; Lec. Complete Writings of
Thomas Say, ii. p. 656.

Eleodes coriacea, Sol. Studi Ent. p. 2497.
Eleodes rugulosa, Dup. in litt.
Eleodes rugosa, Sturm, in litt.

ELAODES. 85

Hab. Mexico !? (Sallé, ex coll. Sturm), Puebla (coll. F. Bates, Sallé), Jalapa, Espe-
ranza (Hoge).

In most collections. This species may be known by its large size, elongate form, the

exceedingly rugulose sculpture of the upper surface, and the femora unarmed in both
sexes.

26. Elzodes glabricollis.

Of the form of ZH. coriacea, Sol., and the elytra sculptured as in that speties; the head and thorax almost
impunctate, with exceedingly fine scattered punctures.
Length 20-25 millim. (9?.)

Hab. Mexico (coll. F. Bates), San Luis Potosi (Dr. Palmer).

Two female examples. Possibly a form of E. coriacea; from E. longicollis, apart
from its rugulose elytra, it may be known by the sides of the thorax being more
equally rounded, the base and apex of equal width.

27. Elzodes angusta. (Tab. IV. fig. 12, ¢.)
Eleodes angusta, Eschsch. Zool. Atlas, iii. p. 138; Sol. Studi Ent. p. 248.
Eleodes angustata, Klug, Dej. Cat. 3rd ed. p. 209.
Eleodes elongata, Sturm, in litt. |
Eleodes cadaverina, Chevr. Dej. Cat. loc. cit.

Hab. Mexico (coll. Sturm, F. Bates), San Andres, Guanajuato, Toluca (Sa/lé),
Esperanza, Jalapa, Tehuacan, Oaxaca (Hége).

A common species in Mexico, and sent by Hoge in great numbers. Specimens
frequently occur of a reddish-brown colour and with red legs.

28. Elzeodes sonore. (Tab. IV. fig. 13, ¢.)

Oblong ovate, strongly convex, black, shining. Head sparingly and rather coarsely punctured ; prothorax as
long as broad, very convex, moderately rounded at the sides, about as wide at base as at apex, anterior
angles obtuse and slightly prominent, the sides very feebly sinuate near the base and apex, the base
slightly rounded, shining, smooth, with a few very fine scattered punctures; elytra comparatively short
(compared with the length of the thorax), a little wider than the thorax at the base, the sides slightly
rounded, widening but little from the base, the base broadly but feebly emarginate, with regular rows of

- fine approximate punctures, the interstices flat and each with a row of punctures similar to those of the
strie, duller and less shining than the thorax ; anterior femora unarmed ; anterior tibial spurs subequal ;
anterior tarsi clothed with spiny hairs beneath ; prosternum with a short horizontal projection behind.

Length 13 millim. (<¢.)
Hab. Mexico, Northern Sonora (Morrison).

One example. This small distinct species may be recognized by its comparatively
very long, smooth, shining thorax and the close and regular rows of fine punctures on
the elytra; the punctures of the interstices similar to those of the strie.

86 HETEROMERA.

29. Eleeodes chihuahuensis. (Tab. IV. fig. 14, 2 .)

Elongate oval, not very convex, subopaque, black. Head somewhat coarsely and closely punctured ; prothorax
a little broader than long, feebly convex, subquadrate, widest a little before the middle, slightly narrowed
towards the base, sides feebly rounded and slightly sinuate near the angles, distinctly margined, anterior
angles almost rounded, hind angles obtuse, with a distinct fine scattered punctuation; elytra dull, the
disc depressed, widest a little behind the middle, somewhat abruptly narrowed just before the base, the
apex slightly produced and rounded, humeri obtuse, the base raised in the middle, with rows of fine
punctures, the interstices flat and each with a row of punctures almost as coarse as those of the striz ;
anterior femora unarmed; anterior tarsi clothed with short stiff hairs beneath; spurs of the curved
anterior tibia subequal; progsternum produced behind into a short horizontal projection.

Length 184 millim. (9.)

Hab. Maxico, Pinos Altos in Chihuahua (Buchan-Hepburn).

One example. This species is not very closely allied to any other here recorded.

2. The basal joints of the anterior tarsi in the male densely clothed with finer (almost
silky) hair beneath, rarely feebly dilated. (Buapyis, Horn.)

A. Anterior femora toothed in the male.
a. Elytra feebly caudate at the apex.

80. Eleeodes spinole.
Eleodes spinola, Sol. Studi Ent. p. 2531. ;

Hab. Mexico!, Toluca (coll. F. Bates), Yolos, Puebla, Oaxaca, Cuernavaca, Guana-
juato (Sadlé), Jalapa, Oaxaca (Hoge), Monclova in Coahuila (Dr. Palmer).

31. Eleodes calcarata. (Tab. IV. fig. 15.)
Eleodes calcarata, Sturm, in litt.
Allied to E. spinole, and differing as follows:—Shining and more convex; the prothorax less transverse,
narrower, a little more convex, smooth, and almost impunctate ; the elytra more convex, with shallow or
obsolete grooves, and scattered fine punctures, sometimes finely and shallowly punctate-striate ; anterior

femora toothed in the male.
Length 18-19 millim. (¢ 2.)

Hab. Mexico, Guanajuato (Sallé, ex coll. Sturm).

Five examples.

32. Elesodes montana.

Allied to EZ. spinol, and differing as follows :—A little more shining, and more convex; the prothorax more
convex, smooth, or finely and sparingly punctured ; the elytra somewhat coarsely and shallowly punctate-
striate, the interstices rather coarsely, and sometimes muricately, punctured, the apex feebly caudate and
almost rounded; anterior femora toothed in the male.

Length 17-19 millim. (¢ 9.)
Hab. Mexico, Alvarez Mountains (Dr. Palmer).

Six examples. This is perhaps a form of EF. spinole.

ELAODES. 87

b. Elytra rounded at the apex.

33. Eleodes erratica. (Tab. IV. fig. 16, 3.)

Oblong ovate, convex, dull black. Head nearly smooth, or with fine scattered punctures ; prothorax about as
broad as long (male), a little shorter and more transverse (female), strongly convex, rounded at the sides,
the base and apex of equal width, widest in the middle, in some examples very feebly sinuate near the
obtuse anterior angles, hind angles obtuse or indistinct, with exceedingly fine scattered punctures; elytra
narrow in the male, broader in the female, convex, the sides rounded to the base, widest about the
middle, humeri obtuse, finely punctate-striate, the interstices each with a row of much finer punctures
(often obsolete), in some examples the punctures of the strie are indistinct and almost obsolete;
anterior femora in the male with a short tooth, in the female bluntly toothed; antenne in the male
long and thin, in the female shorter and stouter, the last three joints in both sexes distinctly broader
and larger than the preceding; basal joints of the anterior tarsi in the male thickly clothed with hair
beneath; anterior tibial spurs subequal; legs in the male longer and thinner than in the female; pro-
sternum with a more or less distinct blunt tooth behind.

Length 93-14 millim. (¢ 9.)

Hab. Mexico, San Blas, Mazatlan, Presidio, Tres Marias Islands (Forrer).

Twelve examples. A small, dull, convex, narrow species, not very closely allied to any
other here recorded. A male and female were sent from the Tres Marias Islands; the
former has longer and thinner antenne and legs than examples of the same sex from
the mainland ; the female is, however, identical.

B. Anterior femora unarmed in both sexes.

* Upper spur of the anterior tibie in the female longer and stouter than the
lower spur.

34, Elzodes longicornis. (Tab. IV. fig. 17,2.)

Oblong ovate, convex, smooth, dull black. Head sparingly and very finely punctured; prothorax about as
broad as long, a little more transverse in the female, convex, moderately rounded at the sides, about
equally narrowed at base and apex, widest in the middle, anterior angles obtuse and a little prominent,
hind angles obtuse, smooth and almost impunctate; elytra scarcely wider than the thorax at the base in
the male, wider in the female, slightly elongate in the male, shorter and broader and the apex broadly
rounded and scarcely attenuate in the female, widest a little behind the middle, the sides moderately
rounded and feebly sinuate a little before the base in both sexes, the humeri distinct and, in the female,
almost meeting the hind angles of the thorax, smooth and almost impunctate ; upper spur of anterior tibize
in the female much longer and stouter than the lower spur; anterior femora unarmed in both sexes ; basal
joints of the anterior tarsi in the male thickly clothed with hair beneath; antenne in the male rather
long, the last three joints broad and stout, in the female shorter and stouter and the apical joints a little
smaller than in the male.

Length 12-13 millim. (3 9.)

Hab. Mexico, Ciudad in Durango 8100 feet, Milpas 5900 feet (Forrer).

Seven examples. A small, smooth, dull species, of a somewhat different facies from
its allies.

88 HETEROMERA.

** Sours of anterior tibie in the female subequal.

35. Eleodes hepburni.

Elongate, convex, subfusiform, black, shining. Head almost smooth, with a few scattered exceedingly fine
punctures ; prothorax strongly convex, about as long as broad, widest in the middle, the base and apex
about equal in width, the lateral margins scarcely visible from above, the sides rounded, somewhat abruptly
constricted just before the base, and feebly sinuate near the obtuse anterior angles, anterior margin
nearly straight, hind angles obtuse, with traces of an obsolete central channel, almost smooth, with
exceedingly fine scattered punctures ; elytra long, convex, the sides rounded gradually to the base, widest
about the middle, the apex attenuate and broadly rounded, the humeri distinct and subacute, finely,
indistinctly, and irregularly punctate-striate, with traces of shallow fine narrow grooves, the interstices
flat and with some very fine widely scattered punctures; anterior femora unarmed; spurs of anterior
tibiee subequal; anterior tarsi from base to apex thickly clothed with hair beneath; all the tibize curved ;
prosternum horizontal,”produced behind into a short blunt tooth.

Length 21 millim. (¢.)

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

One example. Of the form of £. longicollis, but smaller, the anterior tarsi clothed
throughout with hair beneath, the sides of the thorax more strongly embracing the
flanks (the marginal carina scarcely visible from above), &c. The disc of the thorax in
the single example before me is strongly impressed on each side a little behind the
middle, and deeply impressed transversely just before the base; but this is probably
due to accidental circumstances.

36. Eleodes forreri. (Tab. IV. fig. 18, 2.) |

Elongate, dull black, subopaque. Head with some scattered fine punctures (sometimes nearly obsolete), the
vertex smoother ; prothorax subquadrate, about as long as broad (very long in the male), longitudinally
convex, narrowly margined, the angles obtuse and almost rounded (not acute or prominent), sides rounded
and narrowing a little towards the base, with scattered very fine almost obsolete punctures; elytra in the
male elongate and attenuate, and the apex broadly rounded, in the female shorter, widening from the
base to beyond the middle, the sides rounded and the apex produced and rather broad, with rows of fine
muricate punctures, the interstices flat and exceedingly finely wrinkled or smooth; the anterior femora
unarmed in both sexes, slightly swollen in the middle, and emarginate near the apex in the male; the
anterior tibie feebly emarginate on the inner side at the base, the spurs subequal; the basal joints of the
anterior tarsi in the male thickly clothed with almost spongy hair beneath.

Length, ¢ 22 millim., 9 18-20 millim.

Hab. Mexico, Ciudad in Durango, 8100 feet (Forrer).

Six examples. Allied to £. angusta and E. ruida in form; the anterior tarsi thickly
clothed with hair beneath, the upper surface dull and subopaque.

37. Eleodes levigata. (Tab. IV. fig. 19, ¢.)
Eleodes levigata, Sol. Studi Ent. p. 244,
Eleodes glaberrima, Chevr. in litt.
Hab. Mexico (coll. F. Bates), Oaxaca, Toluca, Orizaba (Sallé), Tehuacan, Oaxaca,
Jalapa (Hoge); Guaremaza (Sallé), Totonicapam 8500 to 10,500 feet (Champion),

ELAODES. 89

Under the name of Eleodes levigata, Sol., there are, I think, two species confused in
collections; Solier’s description will perhaps apply better to E. soliert. This is the
only Eleodes known, as yet, as occurring south of Mexico.

38. Eleodes solieri. (Tab. IV. fig. 20, 3.)
Eleodes levigata, Sol., var. A, Studi Ent. p. 244".
Eleodes glabrata, Sturm,-in litt.
Eleodes cylindrica, Spin. in litt. (3).
Eleodes oblonga, Sturm, in litt.
? Blaps celsa, Say, Bost. Journ. Nat. Hist. i. pp. 151-2037; Lec. Complete Writings of Thomas

Say, i. p. 657.

Smaller and a little more shining (the thorax especially) than £. levigata; the thorax strongly transverse,
more rounded at the sides, more strongly narrowed behind, and narrower at the base than at the apex ;
the elytra in the female less parallel, more narrowed towards the base.

Length 13-17 millim. (¢ 2.)

Hab. Mexico 1? (coll. F. Bates), Oaxaca, Parada, Capulalpam, Puebla, Guanajuato,

Orizaba, Durasnal (Sal/é), Tehuacan, Las Vigas, Jalapa, Oaxaca (Hoge), Alvarez Moun-

tains, Saltillo in Coahuila, San Luis Potosi (Dr. Palmer), Pinos Altos in Chihuahua

(Buchan-Hepburn).

This is the species generally known as E. levigata in collections; it is apparently
common and widely distributed in Mexico.

39. Elzodes tenebricosa.
Eleodes obscura, Sol. Studi Ent. p. 245 (nom. preoc.) *.
Eleodes tenebricosa, Harold, Col. Hefte, vi. p. 122.

Eleodes reflera, Deyr. in litt.
Eleodes chevrolati, De}. in litt.

Hab. Mexico 1, Toluca, Oaxaca (coll. F. Bates), Oaxaca, Parada, Capulalpam (Sai/é).
Duller and more convex than E. levigata and E. solieri. The thorax more convex
and more constricted towards the base than in E. /evigata; in some examples more

transverse than in others.

40. Eleodes distincta.
Eleodes distincta, Sol. Studi Ent. p. 239°.
Eleodes subrugosa, Sturm, in litt.

Hab. Mextco!, Puebla (Sallé, coll. F. Bates), San Andres, Oaxaca (Sallé), Jalapa,
Oaxaca (Hége).
41, Bleodes sallei. - (Tab. IV. fig. 21, 3.)

Eleodes sallei, Deyr. in litt.

Eleodes picea, Deyr. in litt.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1885. NN

90 HETEROMERA.

Oblong ovate, black, shining. Head with some scattered fine punctures, the vertex smooth; prothorax trans-
verse, subcordate, distinctly margined, moderately convex, strongly rounded at the sides, constricted
towards the base, feebly emarginate in front, anterior angles rounded or obtuse, hind angles obtuse and
indistinct, smooth or with very fine scattered punctures; elytra gradually widening and rounded from the
base to the widest part about the middle, somewhat convex, the humeri rounded and not prominent, the
sculpture varying very much, smooth with scattered very fine punctures and without any trace of stria,
shallowly punctate-striate and the interstices with scattered punctures, or coarsely, shallowly, and irre-
gularly punctate-striate, the interstices coarsely punctured, and the punctures often confluent ; anterior
femora unarmed in both sexes; spurs of anterior tibia subequal; the basal joints of the anterior tarsi in
the male thickly clothed with hair beneath.

Length 13-20 millim. (3 9.)

Hab. Mexico (coll. F. Bates), San Andres, Guanajuato (Sallé), Tehuacan (Hége).

Var. a. Elytra shallowly sulcate, the striz with shallow not very coarse punctures, the interstices finely and
sparingly punctured.

Hab. Mexico, San Andres (Sallé), Tehuacan, Jalapa (Hoge).

Var. b. Smaller, the thorax a little less constricted behind, the sculpture of the elytra varying as in the

type.
Length 15-16 millim.

Hab. Mexico, Las Vigas, Jalapa (Hége).

A species varying very much not only in size, but in the shape of the thorax and
elytra; the thorax is a little more convex, more strongly rounded at the sides, and
more constricted at the base, the anterior angles a little more rounded and less pro-
minent, and the anterior margin straighter than in the specimens I refer to Z. distincta,
Sol.; the elytra vary exceedingly in sculpture, in some specimens almost rugulose, the
interstices almost as coarsely punctured as the strie, and the punctures frequently
confluent, in other examples almost smooth and with the strie almost obsolete; the
interstices, however, are never transversely or obliquely wrinkled as in E. distincta, nor
the humeri so distinct as in that species.

The var. 6, though differing somewhat from £. sal/wi in the shape of the thorax, is
probably merely a form of that species.

42. Eleodes impolita. (Tab. IV. fig. 22,¢.)

? Blaps impolita, Say, Bost. Journ. Nat. Hist. i. pp. 151-203 (1835)*; Lec. Complete Writings of
Thomas Say, i. p. 656.

Eleodes aubei, Sol. Studi Ent. p. 245 ?.
Eleodes sublevis, Sturm, in litt.

Hab. Mexico *? (coll. F. Bates), Puebla, Toluca, San Andres, Oaxaca (Sallé), Tehu-
acan, Oaxaca (Hoge).

A dull subopaque species closely allied to EZ. sallei. The thoracic hind angles
acute; the elytra a little more narrowed towards the base, and the greatest breadth
behind the middle, and in this respect approaching EZ. levigata and E. tenebricosa.

ELZODES. 91

43. Elxodes coarctata.

Eleodes coarctata, Sturm, in litt.

Elongate oval, somewhat parallel, convex, black, shining. Head with some fine scattered punctures; pro-
thorax transverse, convex, strongly rounded at the sides, slightly narrowed towards the base, widest
about the middle, feebly emarginate in front, anterior angles rounded and not prominent, hind angles
obtuse, smooth or almost imperceptibly punctate; elytra narrowing but little towards the base, feebly
rounded at the sides, humeri not prominent, smooth, or with almost imperceptible fine scattered punctures,
and usually of a dark reddish-brown hue ; anterior femora unarmed in both sexes; anterior tibial spurs

subequal ; basal joints of the anterior tarsi in the male thickly clothed with hair beneath.
Length 17-19 millim. (¢ 2.)

Hab. Mexico (coll. F. Bates), Toluca, Puebla (Sailé).

Ten examples. Allied to ZH. sallwi, but smoother and more parallel; the thorax less
constricted at the base ; the elytra less rounded at the sides and broader at the base.

44, Eleodes hégei. (Tab. IV. fig. 23,6.)

Ovate convex, dull black. Head with some fine widely scattered punctures; prothorax in the male about as
broad as long, in the female transverse, convex, strongly rounded at the sides, the base and apex about
equal in width, the angles obtuse, widest in the middle, smooth or almost imperceptibly punctured ; elytra
in the male rather elongate and a little wider than the thorax, in the female broad and short and much
wider than the thorax at the base, in both sexes widest a little behind the middle, the sides rounded to
the base, humeri obtuse, shallowly and finely punctate-striate, the interstices flat and sometimes with
indistinct scattered punctures; anterior femora in both sexes very feebly emarginate near the apex; basal
joints of the anterior tarsi in the male stouter than in the female and densely clothed with hair beneath ;
spurs of the anterior tibize subequal.

Length 12-134 millim. (¢ 9.)

Hab. Mexico, Tehuacan, Esperanza (Hége), Orizaba (Sallé).
Sent in plenty by Hoge from Esperanza.

45. Hleodes gravida.
Xysta gravida, Eschsch. Zool. Atlas, ii. p.9*; Guér. Mag. Zool. 1830, p. 30, t. 116. ff. 1-6°; Dej.
Cat. 3rd ed. p. 210.

Hab. Mexico 12 (coll. F. Bates), Oaxaca (Hoge).

Females of this species resemble somewhat HE. alutacea (?); the anterior tarsi are,
however, densely clothed with hair beneath, and the anterior tibial spurs subequal,
the upper spur but little longer than the lower spur. The specimen figured by Guérin
is probably a female.

46. Eleodes angulata.
Xysta angulata, Eschsch. Zool. Atlas, iii. p. 9°.

Hab. Mexico }.

Apparently allied to and perhaps a form of EL. gravida. The following is the descrip-
tion: —“Thorace planiusculo, transverso, lateribus ante medium rotundato, basi angustato
et rectangulo; elytris obsolete sulcatis ; sulcis tenuissime rugulosis. Long. 7 lin.”

NN 2

92 HETEROMERA.

47, Eleodes sulcata. (Tab. IV. fig. 24,¢.)
? Xysta sulcata, Eschsch. Zool. Atlas, in. p. 9.

Oblong ovate, moderately convex, depressed above, dull black. Head with a few widely scattered fine punc-
tures; prothorax transverse, rather depressed above, distinctly margined, subcordiform, strongly rounded
at the sides, abruptly narrowed and sinuate before the base, the hind angles subrectangular, deeply
emarginate in front, the base nearly straight, the anterior angles obtuse but prominent, very feebly and
sparingly punctured ; elytra broader than the thorax at the base, depressed, the sides gradually rounded to
the base, widest about the middle, the humeri slightly swollen and almost meeting the hind angles of
the thorax, shallowly sulcate, the interstices flat, the entire surface transversely, finely, and irregularly
wrinkled and punctured; anterior femora unarmed ; anterior tarsi densely clothed with hair beneath ;
anterior tibial spurs subequal.

Length 14 millim. (¢.)

Hab. Mexico (coll. F. Bates).

One example. . sulcata may be known from small examples of E. distincta, &c., by
the thorax being strongly constricted towards the base and subcordiform ; in this respect
it resembles the North-American E. planata, E. consobrina, &c., but in the latter
the thorax is more convex and much more coarsely punctured. The following is the
description of X. sulcata, Eschsch.:—“Thorace cordato ; elytris punctulatis, sulcatis.
Long. 7 lin.” The present species may or may not be identical with it; if it should
prove distinct, it might be called L. batest.

43. Eleodes melanaria.
Eleodes melanaria, Eschsch. Zool. Atlas, ii. p. 13°; Sol. Studi Ent. p. 241°.
Eleodes sulcipennis, Sturm, in litt.

Hab. Mexico 12 (Sallé, ex coll. Sturm, coll. F. Bates).

A single specimen of an Elaodes in the Sallé collection, labelled £. sulcipennis,
Sturm, and another in that of Mr. F. Bates, are perhaps referable to this species.

49. Eleodes stolida.

Eleodes consobrina, Chev. in litt.

Oblong ovate, convex, dull black. Head with a few fine scattered punctures, the epistoma defined posteriorly
by an impressed transverse line; prothorax strongly transverse, moderately convex, rounded at the sides,
widest a little behind the middle, the sides feebly sinuate before the base, anterior margin nearly straight,
all the angles obtuse, smooth and almost impunctate ; elytra a little wider than the thorax at the base, the
sides equally and gradually rounded to the base, widest about the middle, humeri obtuse, indistinctly or
obsoletely punctate-striate, the interstices flat and sometimes with a few scattered punctures; anterior
femora unarmed ; anterior tarsi densely clothed with hair beneath; spurs of the anterior tibize subequal.

Length 12 millim.

Hab. Mexico (Sallé).
Three examples. A small dull species of somewhat obovate form; the thorax com-

paratively small and transverse. Labelled £. consobrina, Chevr., in the Sallé collection,
a name used by Leconte for another species.

ELAODES.—ARGOPORIS. 93

3. The basal joints of the anterior tarsi in the male dilated and thickly clothed with
spongy hair beneath. (PRomus, Horn.)

50. Hlzodes goryi. (Tab. IV. fig. 25, 3.)
Eleodes goryi, Sol. Studi Ent. p. 251, t. x. ff 14,157.
Eleodes seriata, Lec. Proc. Acad. Phil. 1858, p. 185°; Horn, Rev. Ten. N. A. p. 319.

Hab. Nort America, New Mexico, Texas 2.—Mexico 12 (ex coll. Sturm), Mirador
(Sallé), Rinconado (Hége).

Sent in some numbers by Hége. Mexican specimens are identical with those from
Texas.

The two following species are of doubtful position :—

51. Elzodes striata.
Xysta striata, Guér. Mag. Zool., Mélasomes, 1834, p. 30'; Cast. Hist. Nat. ii. p. 2022.

Hab. Mxxico 2, Tempico !.

52. Elzodes brevicollis.
Eleodes obsoleta, Sol. Studi Ent. p. 238 (nom. preoc.) ’.
Nycterinus brevicollis, Dup. in litt.

Hab. Mexico}.

I cannot identify this species amongst the vast number of Mexican Elwodes before
me.

Group SCAURIDES.

This group, numerous in species in the Mediterranean region, will include Argoporis
and Ammophorus. Two other genera (Hulabis and Cerenopus) are found in California
(chiefly on the peninsula) ; these have not yet been received from Mexico.

ARGOPORIS.
Argoporis, Horn, Rev. Ten. N. A. p. 325 (1870) ; Lec. & Horn. Class. Col. N. A. p. 375 (1888).

This genus is peculiar to Mexico and the South-western United States ; seven species
(two of which are also found north of our frontier) are now known from Mexico.
These insects are found beneath stones, &c., in dry places.

94 HETEROMERA.

1. Argoporis bicolor. (Tab. V. fig. 1, 3.)
Cerenopus bicolor, Lec. Ann. Lyc. New York, v. p. 148°.
Argoporis bicolor, Horn, Rev. Ten. N. A. p. 825°.

Hab. Norrn America, Vallecitas1, Arizona 2, Colorado desert ?.—MeExico, Sonora 2
(Morrison).

2. Argoporis rufipes. (Tab. V. fig. 2,2.)

Dull black, the front of the head reddish brown. Head finely and closely punctured; prothorax about a
broad as long, moderately convex, feebly rounded at the sides, narrowing a little towards the base, the
disc shallowly impressed before the base, closely and very finely punctured ; elytra comparatively rather
short, but little narrowed towards the base, coarsely punctate-striate, the interstices slightly raised and
costate just before the apex, flat or very feebly convex for the rest of their length, very finely and closely
punctured ; legs and antenne red or reddish brown. In the male the intermediate and posterior tibie
are finely, the anterior tibie rather coarsely and closely, denticulate within ; the anterior femora swollen,
and with a short blunt tooth near the base; the posterior femora much swollen and with three or four
stout teeth, the inner of which is the longest.

Length 103-13 millim. (3 2.)

Hab. Mexico, Hacienda de San Miguelito, San Luis Potosi, Parras, and San Pedro
in Coahuila, Valle del Maiz (Dr. Palmer).

Sent in plenty by Dr. Palmer. Allied to A. bicolor and differing as follows :—
smaller, duller, and comparatively shorter in form; the thorax closely and distinctly
punctured ; the posterior femora of the male less abruptly swollen, the teeth differently
arranged (in the same sex of A. dicolor the swollen posterior femur is produced within
into a large triangular tooth; this tooth is bifid and furnished on each side with
smaller teeth); the intermediate femora in the male unarmed.

3. Argoporis brevicollis.

Dark reddish brown, dull, subopaque. Head very closely and rather coarsely punctured, almost rugulose, the
epistoma scarcely smoother and sharply defined posteriorly ; prothorax broad, a little broader than long,
convex in front, strongly rounded at the sides, narrowed towards the base, widest about the middle ; hind
angles obtuse and almost rounded, the disc slightly flattened towards the base, almost smooth; elytra
rounded at the sides, strongly narrowed towards the base, the humeri prominent and subdentiform,
coarsely punctate-striate, the interstices slightly raised and costate just before the apex, flat and almost
impunctate for the rest of their length ; antenne and legs red.

Length 114 millim. (9.)

Hab. Muxico, Ventanas (Forrer).

Two examples. This species may be known by the close and coarse punctuation
of the head, the short thorax, and the strongly rounded sides of the thorax and elytra ;
the male has yet to be discovered.

4, Argoporis crassicornis. (Tab. V. fig. 3, ¢.)

Reddish brown or black, convex, shining. Head very coarsely and rugulosely punctured between the eyes, the
epistoma smoother and sharply defined posteriorly ; prothorax convex, about as long as broad, broad in
front, narrowed towards the base, the disc flattened or impressed before the base, smooth, almost impunc-

ARGOPORIS. _ 96

tate ; elytra rounded at the sides, rather short, a little narrowed towards the base, the humeri thickened
and prominent, rather coarsely punctate-striate, the interstices flat and almost impunctate, the sutural
distinctly, and the third feebly, raised and costate just before the apex; legs and antenne reddish brown
or black; antenne long and stout, widening outwardly, the last four joints strongly transverse. In the
male the anterior tibie are rather coarsely, and the intermediate and posterior tibie finely, denticulate
within; the anterior femora with a short stout blunt tooth near the middle, the posterior femora strongly
swollen in the middle and with about four short stout teeth.
Length 93-123 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates), Ventanas 2000 feet, Presidio, San Blas (Forrer).

Allied to A. cavifrons, which it resembles in the coarsely punctured intraocular
region of the head, but readily separated therefrom by the characters given above. A
female from Presidio and another of the same sex in Mr. F. Bates’s collection differ
from the others in being smaller, the thorax narrower, and the legs and antenne not
quite so stout.

5. Argoporis atripes. (Tab. V. fig. 4, ¢.)
Argoporis atripes, Horn, Rev. Ten. N. A. p. 325 (desc. nulla) (2).

Black, shining, moderately convex. Head closely and finely punctured, the epistoma smoother ; prothorax
about as long as broad, moderately convex, the sides feebly rounded, slightly narrowed towards the base,
widest about (or a little before) the middle, the disc flattened or impressed before the base, smooth, or
almost imperceptibly punctured ; elytra elongate, slightly flattened on the dise, feebly rounded at the
sides, a little narrowed at the base, the humeri prominent, rather coarsely punctate-striate, the interstices
slightly raised and costate just before the apex, flat for the rest of their length, almost imperceptibly
punctured, and sometimes feebly wrinkled transversely along the suture; legs and antenne black. In
the male the tibie feebly denticulate within; anterior femora much swollen, and with a feeble broad
blunt tooth on the inner side near the base; posterior femora slightly swollen in the middle, and with
about four short teeth (somewhat distantly placed one from the other), the inner one the stoutest.

Length 12-13 millim. (¢ @.)

Hab. Mexico ! (coll. F. Bates), Hacienda de Bleados, San Luis Potosi (Dr. Palmer).
Guanajuato (Sallé).

Many specimens.

6. Argoporis cavifrons. (Tab. V. fig. 5, 3.)

Dull black, convex, scarcely shining. Head coarsely and closely punctured between the eyes, the epistoma
smoother and sharply defined posteriorly; prothorax convex, rather narrow, about as long as broad, the
sides rounded and equally narrowed at the base and apex, widest in the middle, smooth or exceedingly
finely and closely punctured; elytra of an elliptic form, convex, the sides rounded and strongly narrowed
towards the base, widest in the middle, the humeri fine and dentiform, finely punctate-striate, the
interstices almost smooth, the sutural obliquely, the third feebly, and the seventh distinctly raised and
costate just before the apex, flat for the rest of their length; legs and antenne black. In the male the
tibia are very feebly denticulate within ; posterior femora slightly swollen in the middle, with three or
four short teeth ; anterior femora with a short blunt tooth near the base.

Length 11-12 millim. (¢.)

Hab. Mexico, Presidio, Ventanas (forrer).

Three male examples. Allied to A. atripes, and the posterior femora in the male

96 HETEROMERA.

formed as in that species, but duller and more convex; the thorax narrower, more
rounded at the sides, and not widened anteriorly; the elytra more narrowed towards
the base and more finely punctate-striate ; the head coarsely punctured between the eyes.

7. Argoporis costipennis.
Cerenopus costipennis, Lec. Ann. Lyc. New York, v. p. 143°.
Argoporis sulcipennis, Horn, Rev. Ten. N. A. p. 825°.

Hab. Nort America, Oregon, California, and Arizona ?, river Gila *.

Found on our northern boundary.

AMMOPHORUS.

Ammophorus, Guérin-Ménéville, Voyage Coquille, Ent. ii. p. 94 (1830); Lacord. Gen. Col. v.
pp. 132, 725.
Selenomma, Solier in Dej. Cat. 2nd edit. p. 183.
This is a genus containing some few species found in Peru, Chili, and the Galapagos
Islands; one species is recorded from Panama, and another from the Sandwich Islands.
It is probable, however, that there is some mistake about these last-named localities.

1. Ammophorus denticollis.
Ammophorus denticollis, Bohem. Res. Eugén. Ins. p. 89°.

Hab. * Panama 4,

Group EUTELIDES.

This group will contain Diceroderes, a genus peculiar to Mexico and Guatemala ;
some not very closely allied forms are found in South Africa.

DICERODERES.
Diceroderes, Solier, Ann. Soc. Ent. Fr. x. p. 46 (1841) ; Lacord. Gen. Col. v. p. 356.
Prosomenes, De}. Cat. 3rd edit. p. 216.

A single species only is known of this genus; D. elongatus, Redt., from Java belongs
to the group Boletophagides.

1. Diceroderes mexicanus.
Diceroderes mexicanus, Sol. loc. cit. p. 49, t. 2. f. 16-21; Lac. loc. cit. p. 357.

Hab. Mexico (coll. F. Bates), Orizaba (Sallé), Jalapa (Hége); GuaTemata, San
Gerénimo (Champion).

This remarkable species may be known at once by the rough upper surface, and the
thorax produced into a stout curved horn on each side in front ; it is found under loose

bark.

MITYS. 97

Group TENEBRIONIDES.

This group will include the “Ccelometopides” and the “Group I.” of the “Téné-
brionides vrais” of Lacordaire; the Group I. (Upes) and part of “Group II.”
(Tenebrionides) of the Tribe “Tenebrionini” of Leconte and Horn (Class. Col. N. A.
1883, p. 376).

Comparatively few of the species, or even of the genera, of the numerous tropical
species of this group have been worked out as yet, though many of these are represented
in collections, and are sometimes to be seen labelled as species of Vyctobates, Iphthimus,
or Upis, genera with which they have little to do. Several genera not yet detected in
our country are found in North America, two of which, Upis and Iphthimus, also occur
in Europe.

Though unwilling to make the numerous additional genera described here, it seems
to me far preferable to do so than to place these species under genera which, if we
included them, it would be almost impossible to characterize. Most of the species,
with the exception, perhaps, of those of the first two or three genera, are found beneath
bark.

MITYS.

Form of Polyplewrus. Mentum (Tab. V. fig. 7 a) trilobed, small, narrow, scarcely transverse, inflexed on each
side, longitudinally convex in the middle; inner lobe of the maxille with a short curved tooth at apex
(Tab. V. fig. 7); last joint of the maxillary palpi subsecuriform ; antenne (as in P. nitidus, Lec.) long
and thin, last joints not transverse; epistoma broad, slightly rounded and not emarginate in front ;
sides of the front swollen and slightly divergent ; the front flattened between the eyes; prothorax as in
P. nitidus ; scutellum small, transversely triangular; elytra rather short, inflated or slightly swollen,
convex, smooth, or with fine punctured strie ; epipleure wide and narrowing gradually from the base,
obsolete behind, and not reaching the apex; legs as in P. nitidus :—the tibiew curved inwardly, and clothed
with short matted hair (more distinctly in the male) on the inner side at their rounded apices (the spurs.
almost obsolete), the tarsi long and densely clothed with hair beneath; prosternum narrow, deflexed
behind, the apex produced and rounded or bluntly toothed behind, longitudinally grooved on each side,,
the margins and centre raised; posterior coxe widely separate ; intercoxal process very broad, the apex
feebly rounded and almost truncate. Apterous.

This genus will include three species from Mexico. The shape of the mentum,
head, and the elytral epipleure forbid association with the North-American genus Poly-
pleurus, though the species here described have much the general facies of P. nitidus,
Lec., an insect found in Florida. P. nitcdus itself differs greatly from the type of the
genus (P. geminatus, Sol.) in the structure of the antenne, tibie, and tarsi, and can

scarcely be considered congeneric with it.

Mitys is also allied to Chileone, Hypaulaxr, and Hipalmus, F, Bates; and may be
known from those genera by the characters given above.

1. Mitys inflatus. (Tab. V. fig. 7; 7a, mentum and labial palpi; 7 d, maxilla

and maxillary palpus.)
Ovate, convex, black, slightly shining. Head finely and rather closely punctured ; prothorax about as long as

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1885. 00

98 HETEROMERA.

broad—in the female transversely convex, strongly rounded at the sides, slightly narrowed and sinuate
just before the base, narrower at the base than at the apex, widest about the middle, anterior angles
rounded, hind angles prominent but obtuse ; in the male less convex, the sides straighter and less distinctly
sinuate before the base, the base very distinctly margined and sometimes with a shallow transverse fovea
on each side near the angles, rather closely, finely, and shallowly punctured, sometimes with traces of an

- obsolete central line or groove; elytra a little wider than the thorax at the base, rather short and inflated,
moderately rounded at the sides, widest behind the middle, transversely convex, humeri obtuse, finely and.
shallowly punctate-striate, the punctures rather distant one from the other, the interstices flat, with fine
oblique or transverse irregular scratches.

Length 14-16 millim. (d 92.)
Hab. Mexico, Parada, Yolos (Sallé), Oaxaca, Cerro de Plumas (Hége).

Seven examples.

2. Mitys levis. (Tab. V. fig. 6.)

Oblong ovate, black, shining. Head smooth or almost imperceptibly punctate ; prothorax as long as or longer
than broad, slightly rounded at the sides, widest a little behind the middle, a little narrower at the apex
than at the base, moderately convex, the base very distinctly margined, exceedingly finely and sparingly
punctured ; elytra slightly wider than the thorax at the base, feebly rounded at the sides in the male,
rounded and more narrowed towards the base in the female, the disc slightly depressed, smooth, or rarely
finely and indistinctly punctate-striate.

Length 13-16 millim. (¢ 2.)

Hab. Mexico, Tehuacan, Las Vigas, Esperanza (Hége).

Sent in numbers by Herr Hége. Comparatively longer, smoother, narrower, and less
convex than MV. inflatus; the thorax not sinuate at the sides before the base; the
elytra comparatively longer, less inflated, and nearly smooth.

3. Mitys opacus.

Ovate, dark reddish brown, subopaque. Head almost smooth ; prothorax as in M. levis; elytra short, convex,
feebly rounded at the sides, a little wider than the thorax at the base, almost smooth, with traces of
obsolete stris, the interstices flat.

Length 13 millim.

Hab. Mexico, San Antonio de Arriba (Sa//é).

One example. Smaller, and narrower, and of a different form to MW. inflatus; the
thorax and elytra longitudinally and not transversely convex; comparatively shorter
(the elytra especially) than I. levis. MM. opacus may be known from both the
preceding species by its dull opaque surface ; it is possibly a form of UW. levis.

GENOPION.

Form of Mitys. Mentum (Tab. V. fig. 8a) strongly transverse, the sides inflexed anteriorly, the anterior angles a
little produced, broadly but feebly emarginate in front, the sides rounded posteriorly, a short oblique elevation
on each side in the middle, coarsely rugulose; last joint of the maxillary palpi subtriangular; inner
lobe of the maxill furnished with coarse spiny hairs (Tab. V. fig. 86); antenne short, sixth, seventh, and
eighth joints the broadest, ninth and tenth transverse, last joint a little narrower ; labrum transverse, large,
prominent, feebly emarginate, anterior margin densely clothed with hair; epistoma broad, scarcely

CENOPION.—CENTRONOPUS. 99

emarginate, distinctly separated from the front; the sides of the front slightly divergent ; prothorax broad,
transversely convex; scutellum large, triangular; elytra about twice the length of the thorax, not
contiguous to the thorax, transversely convex, strongly rounded at the sides, the apex a little produced
and rounded, humeri obsolete, finely punctate-striate; all the femora rather coarsely punctured and
slightly swollen at their apices; tibie and tarsi as in Mitys, the tibie rather coarsely punctured ;
epipleure narrow, indistinct, confounded with and not distinctly separated by a carina from the elytra,
obsolete before the apex ; prosternum rather broad, horizontal, the apex produced and rounded, rugulose,
with a shallow groove on each side, between which convex ; posterior coxe and intercoxal process as in
Mitys. Apterous.

One species from Mexico. (nopion may be known from its allies by the structure

of the mentum and epipleure; it is nearest allied to Mitys, Hipalmus (Lobetus,
Motsch.), and Celocnemis.

1. Gnopion gibbosus. (Tab. V. fig. 8; 8a, mentum and labial palpi; 84,

maxilla and maxillary palpus.)

Oblong ovate, very convex, black, slightly shining. Head finely and sparingly punctured, the space between
the eyes flattened and shallowly impressed on each side; prothorax transverse, widest anteriorly,
narrowed from before the middle to the base, strongly and transversely convex, swollen anteriorly,
anterior angles rounded, hind angles obtuse, lateral margins scarcely visible from above, basal margin
distinct, feebly bisinuate and scarcely emarginate in front, base feebly bisinuate, with an indistinct central
channel obsolete before the middle, the disc slightly impressed on each side behind the middle, finely but
not very closely punctured; elytra a little wider than the thorax at the base, strongly rounded at the
sides, transversely convex, widest a little beyond the middle, with rows of fine distant punctures, the
interstices flat and with very fine transverse scratches or wrinkles.

Length 21 millim.

Hab. Mexico, Cerro de Plumas (Hége).

One example.

CENTRONOPUS.

Centronopus, Solier, Studi Ent. p. 258, t. 11. f.4-8 (1848) ; Lacord. Gen. Col. v. p. 360 (nec Horn).

Centronipus, De}. in litt.
Scotobenus, Lec. Proc. Acad. Phil. 1859, p. 88; Horn, Rev. Ten. N. A. p. 340.

This genus was founded by Solier upon a single species (C. suppressus, Say) from
Mexico; we have now to add another species from that country. Closely allied forms
are found in North America. Dr. Horn (Trans. Am. Ent. Soc. v. p. 15, 1875) has
proposed the name of Scotobates for two North-American species (C. calcaratus, Fabr.,
and C. opacus, Lec.) formerly referred to Centronopus; Mr. C. O. Waterhouse, however,
has pointed out (Ann. Nat. Hist. 4th ser. Xvii. p. 288) that the C. calcaratus, Fabr.,
belongs to the genus Menechides, Motsch. (Bull. Moscou, 1872, p. 23). In the male of
Centronopus the epistoma is rounded in front, the anterior margin reflexed and slightly
raised in the centre; in the same sex of Scotobenus the epistoma is, as in the female of
both, truncate, and the anterior margin not reflexed; these differences, however, are

scarcely of generic importance.

00 2

100 HETEROMERA.

1. Centronopus suppressus. (Tab. V. fig. 9, ¢.)

Tenebrio suppressus, Say, Boston Journ. Nat. Hist. i. p. 187 (1835)'; Lec. Complete Writings
of Thomas Say, i. p, 659.

Centronopus extensicollis, Sol. Studi Ent. p. 260, t. 11. f. 4-8 (1848) ; Chevr. Dej. Cat. p. 226.

Hab. Mexico ! (coll. F. Bates), San Antonio de Arriba, Orizaba (Sailé), Las Vigas,
Cordova (Hége).

Captured in great abundance by Herr Hoge. The specimen figured by Solier is
probably a female; we now figure the male.

2. Centronopus grandicollis.
Centronopus grandicollis, Sturm, in litt.

Elongate oval, depressed, black, slightly shining. Head finely and very closely punctured,—in the male the
anterior margin rounded and reflexed, in the female the epistoma is truncate in front and the anterior
margin scarcely reflexed; prothorax broad, transverse, the basal and lateral margins prominent and
reflexed, the sides rounded, slightly narrowed and sinuate before the base, the hind angles very
prominent (owing to the broad emargination of the base) and subacute, the disc broadly but feebly im-
pressed before the base, finely, closely, and shallowly punctured ; elytra long, depressed, feebly rounded
at the sides, widest about, or a little behind, the middle, the sides abruptly narrowed just before the base,
finely punctate-striate, the interstices flat and with exceedingly fine scattered shallow punctures or smooth,
the strize sometimes obsolete.

Length 144-16 millim. (¢ @.)

Hab. Mzxico (coll. F. Bates, Sallé, ex coll. Sturm), Jalapa (Hoge), Hacienda de San
Miguelito (Dr. Palmer).

Found in some numbers by Dr. Palmer. Smoother and duller than C. suppressus,
the elytra very finely or obsoletely punctate-striate.

PYRES.

Near Centronopus, Sol. Mentum (as in that genus) trilobed, small, feebly transverse, longitudinally convex and
raised in the middle infront; antenne short, joints 7-11 wide and in the form of a club, sixth and seventh
joints triangular and wider than the preceding, eighth to tenth broad and transverse, eleventh large and
broad and rounded at the apex; head much as in Centronopus but narrower, the sides of the front
less divergent, and the eyes not so widely separate, the anterior margin in the male rounded and
reflexed, in the female the epistoma truncate and the margin slightly swollen; prothorax strongly
transverse, the lateral margins reflexed and prominent, closely embracing the elytra, hind angles sub-
acute and prominent ; scutellum large, scutiform; elytra wider than the prothorax, subparallel, punctate-
striate; epipleure narrowing gradually from the base, obsolete before the apex; legs much as in
Centronopus :—in the male the anterior tibize have on the inner side a triangular tooth near the middle,
between which and the apex emarginate, the apex only (not the whole of the emargination as in
Centronopus) clothed with hair, the intermediate tibie strongly curved inwardly and swollen at their
apices, the posterior tibiee slightly swollen a little before the middle, the outer edge of all the tibie
rounded, the basal half of the posterior femora beneath not densely clothed with short hair (as in
Centronopus), almost glabrous; in the female the tibiz are simple and almost glabrous beneath;
prosternum declivous behind, longitudinally grooved on each side, the centre convex; intercoxal process
narrower than in Centronopus, pointed and not rounded in front; upper surface highly polished and of
bright metallic colours.

PYRES.—RHINANDRUS. 101

The above description has been drawn up to receive an insect discovered by the late
Mr. Belt in Nicaragua, and an allied species from Colombia *, which we think are best
separated from Centronopus; apart from the bright metallic upper surface, shorter
form, strongly transverse thorax, and different facies, the antenne are more distinctly
clubbed, the tibiz on their inner side (except at their apices) almost glabrous, the
scutellum narrower and less transverse (though large and prominent), the elytra com-
paratively shorter and distinctly broader than the thorax.

1. Pyres metallicus. (Tab. V. fig. 10, ¢.)

Centronopus metallicus, F. Bates, in litt.

Broad ovate, subparallel, convex, bright metallic purple or cupreous, often with an neous or violet tinge,
highly polished and shining. Head finely, closely, and shallowly punctured; prothorax strongly
transverse, the sides rounded, feebly sinuate before the base, anterior angles prominent, though not
acute, hind angles produced and subacute, base bisinuate and shallowly margined within (the margin not
reflexed), lateral margins prominent and reflexed, the disc with a broad and deep transverse impression
before the base, smooth or with fine scattered very shallow punctures; elytra broader than the thorax,
subparallel, rather short, punctate-striate, the punctures rather distantly placed, and deeper and coarser
(often confluent) at the sides than towards the suture or at the apex, the interstices flat and (like the
thorax) with very fine scattered shallow punctures ; legs and beneath dark bluish-violet.

Length 11-123 millim. (¢ 9.)

Hab. Nicaracua, Chontales (Belt, Janson).

Many examples.

RHINANDRUS.

Rhinandrus, Leconte, New Sp. Col. p. 119 (1866) ; Horn, Rev. Ten. N. A. p. 342; Leconte & Horn,
Class. Col. N. A. p. 377.

Ezerestus, F. Bates, Ent. Mo. Mag. vi. p. 268; ibid. ix. p. 98; Kraatz, Deutsch. ent. Zeit. 1880,
p. 182.

Proderops, Fairm. Ann. Soc. Ent. Fr. 1873, p. 393.

This genus has been described no less than three times by different authors.
Rhinandrus is closely allied to Zophobas, the epistoma deeply emarginate in the male
as in that genus, but may be known from it by the longer and more prominent
head (the space Jefore the eyes longer and more produced); the eyes distant from the
thorax, smaller, narrower, and more transverse (the intraocular space broader); the
inner lobe of the maxille without a claw; the base of the elytra straighter. In
three of the four species here recorded the base of the elytra is distinctly raised and

* Pyres batesi.

Allied to P. metallicus, and differing as follows :—upper surface deep bluish-green ; prothorax comparatively a
little less transverse, anterior margin straighter ; elytra with regular rows of deep longish impressions,
scarcely finer towards the suture, but finer and shallower towards the apex, the interstices slightly raised
and convex.

Length 11 millim. ( 2.)

Hab. Cotomsra, Bogota. A single example in Mr. F. Bates’s collection.

102 HETEROMERA.

the humeri prominent; in the remaining species (which might perhaps be placed equally
well in Zophobas) the base of the elytra is, as in Zophobas, without a raised margin, and.
the humeri rounded and almost obsolete. Five species are now known from Lower
California and Central America; two others have been described by Kraatz from South
America *. |

1. Rhinandrus elongatus.

Rhinandrus elongatus, Horn, Proc. Acad. Phil. 1866, p. 400°.

Ezerestus jansoni, F. Bates, Ent. Mo. Mag. vi. p. 269, t. 2. f. 1, la’.

Proderops foraminosus, Fairm. Ann. Soc. Ent. Fr. 1878, p. 894+; Kraatz, Deutsch. ent. Zeit. 1880,
pp. 182, 133.

Hab. Mexico (coll. F. Bates), Yucatan 1; Nicaracua +, Chontales ? (Janson, Belt).

The type described by Dr. Horn is before me ; it agrees perfectly with the Lxerestus
jansoni, F. Bates.

2. Rhinandrus foveolatus. (Tab. V. fig. 11, ¢.)
Proderops foveolatus, Kraatz, Deutsch. ent. Zeit. 1880, p. 133°.

Hab. Mexico! (Sommer), Tehuantepec (Sal/é).

8. Rhinandrus helopioides. (Tab. V. fig. 12, ¢.)
Ezerestus helopioides, Kraatz, Deutsch. ent. Zeit. 1880, p. 135°.

Hab. Muxico, Oaxaca! (Sallé, Baulny).
4. Rhinandrus obsoletus. (Tab. V. fig. 15, ¢.)

Elongate, depressed above, dull black, subopaque, winged. Head small in the female, larger and longer in the
male, shallowly, very finely, and sparingly punctured, the epistoma in the male broadly and rather
deeply emarginate ; prothorax broader than long, narrowed anteriorly, moderately convex, narrowly
margined, widest about the middle, the sides rounded and distinctly sinuate before the base, the hind angles
distinct and subacute, the anterior angles deflexed and obtuse, the disc slightly raised transversely
immediately before the base, the elevation defined anteriorly by a shallow transverse impression and limited
on each side by an oblique fovea, exceedingly finely and shallowly punctured; elytra wider than the
thorax at the base and more than three times as long, widest beyond the middle, the humeri rounded and
almost obsolete, finely or obsoletely punctate-striate, scutellar stria obsolete, interstices flat, almost smooth ;
posterior femora in the male broadly flattened and expanded, the upper face towards the base rugulose
and concave within.

Length 20-24 millim. (¢ 9.)

Hab. Mexico, Presidio and Ventanas (Forrer).

Var.? A little more convex and less depressed, the epistoma in the male more deeply emarginate, the elytra
with an indistinct fine scutellar stria.

Hab. Mexico, Alamos (Buchan-Hepburn).

* Dr. Horn has quite recently (Trans. Am. Ent. Soc. xii. p. 160, April 1885) described yet another species
from Arizona, R. sublevis; this is apparently very closely allied to &. obsoletus, but is described as having
distinct humeri to the elytra.

+ The locality given by Fairmaire is “Amérique méridionale,” but Kraatz in Ent. Zeit. (oc. cit.) gives
“ Siid-Amerika ” for the same insect. .

ZOPHOBAS. 103

This species may be known by its depressed and comparatively smooth upper surface
and almost obsolete humeri; the elytra are much more finely punctate-striate than in
the allied species ; the female has much the general facies of Alobates pennsylvanica, De
Geer. A single male only of the var. ?, several of the type.

ZOPHOBAS.

Zophobas, Blanchard, Hist. des Ins. ii. p. 15 (1845); Lacord. Gen. Col. v. p. 876; Kraatz,
Deutsch. ent. Zeit. xxiv. p. 121 (1880).

Numerous species of Zophobas are known from Tropical America, the genus ranging
from Mexico to Brazil and Peru; several species are found in the West-Indian Islands,
and one has been described from the island of Puna; one or two species from Ceylon
have been ascribed by Walker to the genus, but probably inerror. Dr. Kraatz (/oc. cit.)
enumerates twenty-one species ; others, undescribed as yet and not included in this list,
are known in collections. Ten, of which three appear to be undescribed, are now known
from Central America. The different species are exceedingly variable and difficult,
the females especially, to separate satisfactorily into species; the males, however, offer
better differential characters in the extent of the emargination of the epistoma.

These insects are mostly of large size, and some of the species are spotted or marked
with red; in the male the epistoma is more or less deeply emarginate, the posterior
femora in the same sex often swollen and flattened, and the head larger and broader
than in the female.

Many of the species are found in houses, and are nocturnal in their habits, and

frequently attracted by light.

1. Zophobas tridentatus.
Zophobas tridentatus, Dej. Cat. 1837, p. 226; Kraatz, Deutsch. ent. Zeit. 1880, p. 124.

Hab. Panama, David (Champion).—CotomBia ; GuIANA; BRAZIL.

2. Zophobas pedestris. (Tab. V. fig. 16, 3.)

Form of Z. tridentatus ; the epistoma in the male very broad in front, very distinctly tridentate (deeply
emarginate on each side, the middle produced as far as the sides); the legs and antenne longer; the
femora stouter and not so smooth; the tibise much longer, the anterior pair more distinctly curved, larger

and longer.
Length 30 millim. (¢.)

Hab. Nicaraeua, Chontales (Belt).

A single male from Nicaragua, differing as above, and probably distinct from Z. tré-

dentatus. The antenne are drawn too short and the femora too thin in our figure.

3, Zophobas klingelhofferi.
Zophobas klingelhifferi, Kraatz, Deutsch. ent. Zeit. 1880, p. 126°.

Hab. Mexico! (Klingenhéffer), Cordova (Sallé).

104 HETEROMERA.

A male and female in the Sallé collection; three females only were known to the
describer. In the male of this species the epistoma is deeply and almost triangularly
emarginate, and the sides of the head behind the eyes distinctly swollen; the thorax
in these specimens, as well as the elytra, is slightly marked with red.

4. Zophobas signatus. (Tab. V. fig. 13, 2.)

Oblong ovate, black, opaque. Head almost smooth, the space between the eyes and the vertex (in some
specimens) finely punctured; epistoma truncate in the female; prothorax transverse, the sides strongly
rounded, slightly narrowing anteriorly, widest about the middle, constricted and sinuate before the base,
the hind angles acute and prominent, lateral margins reflexed and prominent, and irregularly and coarsely
crenulate from the middle to the strongly bisinuate base, disc broadly impressed transversely before
the base, smooth or indistinctly punctured, and broadly marked with red on each side; elytra punctate-
striate, interstices almost smooth, with four large and broad red spots, one on each side, transverse a
little before the middle, and another on each side towards the apex ; legs short.

Length 173-224 millim. ( 9.)

Hab. Britise Honpuras, Belize (Blancaneaux); Nicaracua, Chontales (Belt,

Janson).

Four female examples. Closely allied to Z. klingelhéfferi; the thorax more strongly
rounded at the sides, more narrowed anteriorly, and more strongly constricted before
the base; the thorax and the elytra more distinctly marked with red.

5. Zophobas morio.

Helops morio, Fabr. Gen. Ins. Mant. p. 241. n. 45; Spec. Ins. i. p. 325; Mant. Ins. 1. p. 214;
Ent. Syst. i. p. 120; Syst. Eleuth. i. p. 160.

Helops elongatus, Beauv. Ins. Afr. et Amér. p. 164, t. 31. £.9; Chev. Ann. Soc. Ent. Fr. 1852,
p. 638.

Helops nigritus, Oliv. Ent. iii. 57, p. 5, t. 2. f. 26a, 0.
Zophobas morio, Kraatz, Deutsch. ent. Zeit. 1880, p. 128.
Zophobas domesticus, Chevr. in litt.

Hab. Mexico (coll. F. Bates), Tuxtla, Oaxaca (Sallé); GuaTemata, San Gerénimo,
Coban, Zapote (Champion); Nicaragua, Chontales (Belt, Janson); Costa Rica (Van
Patten).—CoLomBiA ; VENEZUELA; Braziu; West Inprss.

Labelled Z. domesticus, Chevr., in the Sallé collection.

Numerous species very closely allied to this have been described by Kraatz; one or
two of which, to judge from the descriptions, can scarcely be considered more than
varieties of this variable, widely distributed, and common species *.

6. Zophobas macretus.

Zophobas macretus, Kraatz, Deutsch. ent. Zeit. 1880, p. 180°.

Hab. Mexico! (Baulny); GuateMata, San Gerénimo, Las Mercedes (Champion) ;
Costa Rica (Sallé, Van Patten). -

* The greater part of the synonymy given is taken from Kraatz’s revision of the genus (Joc. cit.).

ZOPHOBAS. 105

7. Zophobas rugipes.
Zophobas rugipes, Kirsch, Deutsch. ent. Zeit. 1866, p. 197°; Kraatz, ibid. 1880, p. 130.
? Zophobas emarginatus, Dej. Cat. p. 226 (1837).

Hab. Mexico, Vera Cruz, Campeachy in Yucatan (Sallé) ; Nicaragua, Chontales (Belt,
Janson); Costa Rica, Irazu (Rogers); Panama (coll. F. Bates), Chiriqui (Ribdé),
Bugaba (Champion).—Cotompia!; Braziu; Ecuapor; West Inpies, Porto Rico,
Guadeloupe.

8. Zophobas alternans.
Zophobas alternans, Kraatz, Deutsch. ent. Zeit. 1880, p. 1811.

Hab. Mexico ! (Deyrolle).

Unknown to me.

9. Zophobas laticollis. (Tab. V. fig. 14, 3.)
Zophobas laticollis, Kraatz, Deutsch. ent. Zeit. 1880, p. 1817.
Hab. Mexico, Cordova (Sallé) ; Nicaraeua, Chontales (Belt, Janson); Panama (coll.
F. Bates), Chiriqui (Ribdé), Bugaba, David (Champion).—Gutana; Braziu! (coll. F.
Bates) ; Perv.

The numerous individuals of both sexes from Central and South America referred
by me to this species differ from the description given by Kraatz (loc. cit.) in being
larger, the epistoma in the male very deeply emarginate (sometimes with a feeble
tooth in the middle), the posterior femora in the same sex flattened and swollen, the
outer half of the upperside of which is concave and finely rugulose within. These
examples, however, vary considerably in size (19-30 millim.), and in the size of the
head in the male: fully developed males have the head long, large, and strongly
exserted ; in other smaller examples of the same sex from the same locality the head
is scarcely larger or more exserted than in the female, the epistoma less deeply emar-
ginate, and the posterior femora smoother, though always concave within. I cannot
but regard these as more than forms of one species.

Z. ambiguus, Kr., is perhaps allied to this, but the description of that species is too
short to speak with certainty.

10. Zophobas kraatzi.

Form of Z. laticollis, less opaque. The head in the male not larger or more exserted than in the female, the
epistoma broadly but not very deeply emarginate in the male, closely and rather finely punctured on each
side before the eyes; prothorax less convex, the sides straighter (less narrowed towards the base); elytra
sculptured as in that species; the posterior femora in. the male much less swollen, smoother, and not
concave within. 7

Length 214-25 millim. (3 2.)

Hab. Guatmma.a, Zapote, Pantaleon (Champion).
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, Judy 1885. pp

106 HETEROMERA.

Two male and two female examples. This and the preceding species’ have much
the form of a very large Tenebrio.

‘TAUROCERAS.
Tauroceras, Hope, Col. Man. iii. p. 180 (1840).
Bucerus, De}. Cat. 3rd edit. p. 225.
A genus peculiar to the forest-region of Tropical America; some four or five species
are known, one of which is found in our country.

1. Tauroceras angulatum. (Tab. V. fig. 17, .)
Tenebrio angulatus, Perty, Del. Anim. p. 57, t. 12. f. 7 (¢) (1880).
Hab. British Honpuras, Rio Hondo (Blancaneaux) ; GuaTEMALA, Zapote, Champerico
(Champion) ; Nicaragua, Chontales (Belt, Janson).—SovutH AMERICA, Brazil.

This fine species is found beneath the loose bark of decaying forest-trees.

NYCTOBATES.
Nyctobates, Guérin-Méneville, Mag. Zool. 1834, Mélasomes, p. 33, t. 118. f. 2, a-d; Lacord. Gen.
Col. v. p. 871 ; C. O. Waterhouse, Ann. Nat. Hist. 4th ser. xvii. p. 287 (nec Horn and Leconte).
Mylaris, Pallas, Icon. Ins. i. p. 37, t. 110. f. 1 (desc. nulla).
Milaris, Motsch. Bull. de Moscou, xlv. pt. 2, pp. 28, 37.

This genus, as recognized here, will include only the Tenebrio gigas, Linn., and two
or three allied species, all of which are peculiar to South and Central America; one of
these, V. maaima, Germ. (grandis, Dej.), from Brazil, is sometimes labelled MW. mewi-
canus, Guér., in collections ; it will not include the North-American species at present
referred to it, which belong to Alobates, Motsch. (gf Motschoulsky and C. O. Water-
house, loc. cit.).

These insects are found in the forests beneath the loose bark of decaying or fallen
trees; they emit a caustic foetid yellow liquid. when handled. The species of Nycto-
bates are almost the largest known forms of Tenebrionide.

1. Nyctobates gigas.

Tenebrio gigas, Linn. Syst. Nat. edit. 12, i. pt. 2, Insecta, p. 674° (1767) ; Am. Acad. vi. +P. 396.
no. 26; Fabr. Syst. Eleuth. i. p. 144 (1801).

Mylaris gigantea, Pall. Icon. Ins. i. p. 37, t. C. f. 1 (1781).

Tenebrio laminatus, Fabr. Mant. i. p. 211 (1787).

Helops laminatus, Fabr. Ent. Syst. i. p. 117 (1792).

Upis gigas, Herbst, Nat. Kaf. vii. p. 232, t. 110. f. 1 (1797).

Nyctobates gigas, Guér. Mag. Zool. 1834, Mélasomes, p. 33, t. 118. f. 2, a—d.

? Var. Milaris cayennensis, Motsch. Bull. de Moscou, xlv. pt. 2, p. 27 (1872).

Hab. Mexico (coll. F. Bates); Guatemaua, Cubilguitz (Champion); Nicaraeva,

Chontales (Janson, Belt); Panama (coll. F. Bates, ex Boucard).—CotomBia ; BRazit ;
Perv; Gurana, Surinam, Cayenne!; Botivia. |

NYCTOBATES.—NUPTIS. 107

A common species in Tropical South America, becoming rarer north of the Isthmus
of Panama. The males have the thorax larger and longer and more strongly rounded
at the sides than the females. This and the following species vary a good deal in size,
and also slightly in the structure of the mentum and the sculpture of the elytra.

Guiana specimens, and one or two others from Peru and Brazil, in Mr. F. Bates’s
collection, are rather smaller in size, the thorax a little more transverse, and the strice
more distinctly punctured (the punctures not very closely placed) than other individuals
from Central America and Colombia ; but in the long series of specimens before me

intermediate forms are to be found, and I prefer to regard them as varieties or forms
of one and the same species.

2. Nyctobates procerus. (Tab. V. fig. 19, 3.)
Nyctobates procerus, Hopfuer, in litt.

Closely allied to WV. gigas, and differing as follows:—The upper surface more shining and less opaque; the
prothorax proportionally longer and less transverse, and more narrowed anteriorly (especially in the
female) ; the elytra more deeply sulcate, finely crenate-striate, the interstices more convex and shining,
and more closely and distinctly (though very finely) punctured.

Length 28-43 millim. (¢ @.)

Hab. Mexico, Presidio (Forrer), Orizaba (coll. F. Bates), Cordova (Sallé, Hoge),
Jalapa (Hoge); British Honpuras, Rio Hondo, Rio Sarstoon, Belize (Blancaneaus) ;

GuaTEMALA, Yzabal (Sallé), Zapote, Pantaleon, El Tumbador, San Isidro, Cubilguitz.
(Champion).—CotomB1A, Carthagena (coll. F. Bates).

Sent in great numbers by Herr Hoge from Jalapa. This species is common in Mexico
and Guatemala, becoming rarer southwards; it has not yet been received from the
State of Panama. Labelled as above in most collections. WV. procerus may be
separated from WV. gigas by the characters given above; it also averages rather smaller
in size, and the muricate or crenate punctures of the strie (distinct in some examples
and obsolete in others of W. gigas) are placed closer together.

NUPTIS.
? Nuptis, Motschoulsky, Bull. de Moscou, xlv. pt. 2, pp. 25, 32 (1872).

Mentum small, feebly trilobed, inflexed on each side anteriorly, longitudinally convex in the middle, the anterior
angles slightly acute or rounded (NV. corticalis and WV. tenebrosus) ; inner lobe of the maxille (as in Merinus)
with a simple claw; mandibles truncate at the apex; antenne short, joints 6-11 broader, 8--10 transverse, or
as broad as long; last joint of the maxillary palpi securiform ; head broad, the sides of the front swollen and
slightly divergent; epistoma truncate, similar in both sexes, or in some species excavate, and with the anterior

"margin slightly raised and reflexed, and with a short erect tubercle in the middle in the male; eyes large,
transverse oval, intraocular space narrow ; prothorax strongly transverse, slightly rounded at the sides, the
anterior angles rounded, the posterior angles slightly acute and formed by the reflexed basal margin, the sides
narrowly margined, the base bisinuate, and the margin raised and grooved within ; scutellum large, trian-
gular ; elytra closely embracing and distinctly wider than the thorax, subparallel, the humeri rounded and
swollen, with rows of (usually) coarse impressions placed upon indistinct or shallow strie ; prosternum
horizontal, with the apex produced and sublanciform or rounded, or declivous behind and more or less
embracing the coxe, with the apex slightly produced and broadly rounded (the mesosternum in these species

PP2

108 HETEROMERA. —

raised obliquely on each side in front, and concave within, but the angles are not pointed as in Derils) ; legs
smooth, rather short ; femora stout, incrassate, the anterior pair rarely toothed in the male (IV. caliginosus) ;
anterior tibise curved, in the male with a short triangular tooth on the inner side near the middle, rarely
with two teeth (one in the middle, the other nearer to or at the apex) ; the extreme apices of the tibie
and the basal joints of the tarsi more or less densely clothed with silky yellowish hair beneath ; inter-
mediate and posterior tibiz in one or two species slightly swollen in the middle in the male; epipleure
narrowing gradually from the base, terminating somewhat abruptly at the last ventral suture, and
scarcely attaining the apex. Winged. Form elongate oval, subparallel, convex, slightly depressed above.

The above description has been drawn up to receive several Central-American species,
one or two of which are also found south of the Isthmus of Panama. It will include
the undescribed Jphthimus cornutus, Laferté, of collections; the Nuptis tenuis, Motsch.,
from Nicaragua, is probably congeneric with the species here described, though the author
makes no mention of the structure of the anterior tibie, epipleure, &c. Most of the
characters of this, and of @atus, are taken from a carefully prepared but unpublished
revision of the “ Ténébrionides vrais of Lacordaire,” made long ago by Mr. F.
Bates. Nuptis might easily be divided, the form of the pro- and mesosternum differing
in various species; but the structure of the maxille, mandibles, tibie, and epipleure
being similar in all the species known to me, I prefer to place them in one genus.
Somewhat similar variations in the form of the epistoma of the male in the different
species may be seen in Centronopus. This genus is allied to Taphrosoma, Kirsch
(Orobychus, Pascoe), from which, apart from the more transverse thorax and much smaller
size, it differs in the shape of the mentum, epipleure, &c. A good many allied and
mostly undescribed forms, probably generically distinct, are found in Tropical South
America; one of which, the Tenebrio variolosus, Fabr., is known in collections.

These insects, like Nyctobates, are found under loose bark. Owing to the hard,
tough integument of the elytra, and the loosely attached parts of the body, they are
difficult to pin, and frequently come to pieces under that operation.

a. Epistoma in the male margined in front, and with a short erect tubercle
in the middle.

1. Nuptis tenuis.
Nuptis tenuis, Motsch. Bull. de Moscou, xlv. pt. 2, pp. 25, 32°.

Hab. Nicaracva }.

I am unable to identify this species amongst the large number of Central-American
specimens of the group before me. Judging from the size given (6% lines), WN. tenuis is
smaller and narrower than any of the species here recorded.

2. Nuptis cornutus.
Iphthimus cornutus, Laferté, in litt.

Biack, shining. Head with some scattered shallow coarsish punctures, impressed between the eyes ; epistoma
in the male concave within, well defined posteriorly by a transverse impression, the anterior margin raised

NUPTIS. 109

and slightly reflexed, and with a short erect tubercle in the middle ; prothorax strongly transverse, convex,
the sides feebly margined, smooth, the disc usually with a distinct fovea on each side before the middle ;
elytra with rows of rather coarse rounded impressions, the impressions finer towards the suture, the inter-
stices smooth ; anterior tibiz in the male curved, with a short triangular tooth on the inner side near the
middle, and a short blunt tooth .at apex ; intermediate and posterior tibie in the male slightly swollen a little
before the middle ; prosternum smooth, horizontal, the apex strongly produced and rounded; mesosternum
raised obliquely on each side anteriorly, deeply excavated within ; ventral segments longitudinally wrinkled.
Length 15-192 millim. (¢ 2.)

Hab. Guatemaia (coll. Brit. Mus.); Nicaragua, Chontales (Janson); Panama (coll.
F. Bates).—Coutomsia; Brazit.

3. Nuptis inquinatus. (Tab. V. fig. 21, ¢.)

Black, shining. Head irregularly, shallowly, and somewhat coarsely punctured, flattened and impressed and
rugulose between the eyes ; epistoma in the male concave within, the anterior margin raised and slightly
reflexed, and with a short erect tubercle in the middle ; prothorax transverse, widest about the middle,
the sides rounded and very narrowly margined, strongly convex, with an indistinct central line, the disc
feebly impressed transversely before the base, shallowly, finely, and sparingly punctured ; elytra indistinctly
striate, with rows of moderately coarse (or coarse) longish or rounded impressions, the impressions finer
towards the suture, interstices smooth and almost impunctate ; anterior tibie curved, in the male with a
short triangular tooth on the inner side near the middle; prosternum subhorizontal, slightly deflexed,
the apex produced and broadly rounded ; mesosternum slightly concave in the middle in front.

Length 17-20 millim. (¢ 92.)

Hab. GuateMALa, El Reposo, Pantaleon, Zapote, El Tumbador, San Juan in Vera
Paz (Champion).

Rather common in Guatemala.

4. Nuptis caliginosus. (Tab. V. fig. 20, 3.)

Black, shining. Head shallowly, irregularly, and rather finely punctured, flattened and excavated and rugulose
between the eyes ; epistoma in the male concave within, the anterior margin raised and slightly reflexed, and
with a short erect tubercle in the middle ; prothorax strongly convex, transverse, widest about the middle,
the sides rounded and very narrowly margined (the lateral margins scarcely visible from above), the base
strongly margined, smooth, and almost impunctate, the disc sometimes with a rounded impression on each
side before the middle ; elytra with rows of deep, coarse impressions, the impressions scarcely finer towards
the suture, obsoletely striate, the interstices almost smooth ; anterior femora in the male toothed beneath ;
anterior tibiz in the male with two short teeth (one sharp and triangular near the middle, midway between
which and the apex there is another and blunter tooth), in the female slightly swollen in the middle ;
posterior tibie in the male slightly swollen (or obsoletely toothed) a little before the middle ; tarsi densely
clothed with fine long fulvous hair beneath; prosternum deflexed behind, slightly produced, the apex
broadly rounded and slightly embracing the coxe.

Length 17-19 millim. (¢ 2.)

Hab. Muxico (coll. F. Bates), Cordova (Sallé), Jalapa (Hége).

Seven examples. The male of this species may be known at once from its allies by
the toothed anterior femora and the armature of the anterior tibie; the female by the
anterior tibie slightly swollen (or bluntly toothed) in the middle. In some specimens, as
in the allied species, the elytra are more finely punctured than in others.

110 HETEROMERA.

b. Epistoma not margined in the male, similar in both sexes.

5. Nuptis validus. (Tab. V. fig. 22, ¢.)

Black, shining. Head feebly impressed or flattened between the eyes, shallowly, distantly, and rather finely
punctured ; epistoma broad, indistinctly defined posteriorly, similar in both sexes; prothorax transverse,
convex, widest a little before the middle, the sides feebly rounded, very finely, shallowly, and diffusely
punctured, sometimes almost smooth, with an indistinct central line; elytra with regular rows of deep
coarse impressions, the impressions a little finer towards the suture ; anterior tibie in the male with a sharp
tooth on the inner side near the middle and a broad triangular tooth just before the apex ; posterior tibice
in the male slightly swollen (or bluntly toothed) a little before the middle ; prosternum smooth, horizontal,
the apex produced and rounded; mesosternum raised obliquely on each side in front, concave within.

Length 18-21 millim. (¢ 2.)

Hab. Mexico (coll. F. Bates), Cordova (Sallé), Jalapa (Hoge); GuaTeMaLa, San
Gerdénimo (Champion).

Labelled Nyctobates validus, Chevr., in the Sallé collection.

6. Nuptis tenebrosus. (Tab. V. fig. 23, ¢.)

Black, shining. Head with some very coarse scattered punctures between the eyes, the epistoma not distinctly
separate from the front, and similar in both sexes ; prothorax widest a little before the middle, strongly
transverse, moderately convex, the sides distinctly margined and slightly narrowed and sinuate towards
the base, very finely, shallowly, and sparingly punctured, the disc in some specimens transversely im-
pressed a little before the base ; elytra indistinctly striate, with rows of coarse deep impressions, inter-
stices smooth ; anterior tibia in the male with a sharp triangular tooth on the inner side near the middle ;
prosternum horizontal, the apex produced and sublanciform ; mesosternum raised obliquely on each
side in front, strongly concave within.

Length 17-184 millim. (¢ 9.)

Hab. Mexico, Santecomapan (Sallé) ; Guatemata, Cubilguitz, Senahu, and San Juan
in Vera Paz (Champion).

Allied to WV. validus, but smaller, the head very coarsely punctured between the eyes,
the posterior tibize not swollen in the middle in the male.

7. Nuptis corticalis.

Black, shining. Head and prothorax as in N. tenebrosus; elytra indistinctly striate, with rows of not very
coarse or fine longish impressions, the impressions somewhat distantly placed and scarcely coarser towards
the sides, interstices smooth ; anterior tibie in the male with a sharp triangular tooth on the inner side near:
the middle ; prosternum horizontal, the apex produced and rounded ; mesosternum raised obliquely on
each side in front, concave within.

Length 16-18 millim. (¢ 9.)

Hab. Nicaracua, Chontales (Belt, Janson) ; Panama, Volcan de Chiriqui ( Champion).

Allied to WV. tenebrosus ; the elytra more evidently striate, more finely and equally
punctured, the punctures scarcely coarser towards the sides; the sides of the meso-
sternum less raised, &c.

Rather common in Chiriqui beneath the loose bark of old fallen trees in the forests.

(ZATUS.—HICETAON. 111

QEATUS.

Form of Deriles and Nuptis. Mentum trapeziform, rather flat, broadly but feebly emarginate in front, anterior
angles acute ; inner lobe of the maxille unarmed; antenne as in Nwptis; head grooved behind the eyes,
sides of the front slightly swollen and divergent ; epistoma not margined anteriorly in the male, similar
in both sexes, well defined posteriorly; eyes very large and prominent, rounded, not widely separated ;
labrum prominent; prothorax as in Nuptis, but more distinctly margined; scutellum large, transverse ;
elytra parallel, and broader than the thorax (as in Wuptis), crenate-striate, interstices convex; pro-
sternum deflexed behind, margined within, the apex slightly produced and embracing the coxe;
mesosternum slightly concave in front; legs smooth, normal, the femora not incrassate as in Nuptis,
unarmed in both sexes ; anterior tibize unarmed in both sexes; the tibie [which are slightly curved and
thickened at their apices] on the inner side from the middle to the apex, and the tarsi beneath, thickly
clothed with fulvous hair; epipleure gradually narrowing from the base, and extending to the apex of the
elytra, and becoming more or less vertical beyond the last ventral segment.

This genus will include the undescribed [phthimus chevrolati, Hopfn., from Mexico,
&c.; the Tenebrio variolosus, Fabr., from South America; and a nondescript species from
Guiana will probably, though differing greatly in the structure of the pro- and meso-
sternum, have also to be included in it. Allied forms, Amenophis, Thoms., and Deriles,
(Motsch.) C. O. Waterhouse, are found in the Old World. |

1. @atus chevrolati. (Tab. V. fig. 18.)

Iphthimus chevrolati, Hopfner, in litt.

Black, shining. Head very finely and sparingly punctured, almost smooth; prothorax with a distinctly raised
and reflexed margin, the sides feebly rounded and slightly sinuate in the middle and just before the base,
the hind angles prominent and subacute (rarely obtuse), the anterior angles rounded, base strongly
bisinuate, very finely, shallowly, and diffusely punctured, the disc slightly raised in the middle in front
elytra crenate-striate, interstices convex, smooth ; ventral segments at the sides and the last ventral seg-
ment at the apex distinctly margined within.

Length 20-22 millim. (¢ 2.)

Hab. MExico (coll. F. Bates), Cordova (Sailé), Jalapa (Hoge); Brirish Honpuras (coll.
F. Bates), Rio Sarstoon, Belize (Blancaneaux) ; GUATEMALA, Purula, Santa Rosa, Cerro
Zunil, El Tumbador, San Joaquin in Vera Paz (Champion) ; Costa Rica (Van Patten).

A common species in Mexico and Guatemala. In some examples, from Costa Rica,
&c., the strize are more closely and finely crenate, the thorax narrower, and the posterior
angles more obtuse than in others; intermediate forms, however, occur.

HICETAON.

Allied to @atus. The mentum similar, but slightly convex in the middle and rounded at the anterior angles ;
inner lobe of the maxilla. unarmed ; mandibles truncate ; antennz as in @atus ; head long, broad in front,
grooved behind the eyes; epistoma broad and short, sides of the front slightly divergent; eyes distant
from the thorax, widely separate, transverse oval, moderately large and prominent; labrum prominent ;
prothorax a little. broader than long, narrowly margined at the sides and base, rounded at the sides,
narrowed at base and apex, the base feebly bisinuate ; scutellum, elytra, prosternum, and epipleure
as in Gatus; femora and tibie distinctly and rather closely punctured ; anterior tibis unarmed in both
sexes; tarsi beneath:and the apical half of the tibiee clothed -with falvous hair.

112 HETEROMERA.

One species from Mexico and British Honduras. On account of the different shape
of the head, the broader intraocular space (the eyes in consequence more distant), and the
more narrowly margined thorax, Hicetaon is best separated from Gatus, which in other
respects it greatly resembles. The shape of the front of the head more nearly approaches
Iphthimus, a genus found in Europe and temperate North America; the shorter head,
larger eyes, narrower intraocular region, differently shaped mentum, and the more parallel
form will, however, at once separate it from that genus.

1. Hicetaon frontalis. (Tab. VI. fig. 8.)

Black, shining. Head very coarsely and rugulosely punctured between the eyes, the epistoma and vertex
smoother, the vertex longitudinally impressed ; prothorax convex, the sides rounded, sinuate before the
base, narrowed behind, the posterior angles subacute, the disc raised in the middle in front, finely, shal-.
lowly, and sparingly punctured ; elytra crenate-striate, the interstices smooth and convex ; ventral seg-
ments at the sides, and the last at the apex, margined within.

Length 174-21 millim. (¢ 9.)

Hab. Mexico, Jalapa (Hége); Britis Honpuras, Rio Hondo and Rio Sarstoon
(Blancaneaux).

Four examples.

STHENOBCAA.,

Near Gatus. Mentum narrow, about as broad as long, strongly inflexed on each side, longitudinally convex in
the middle, anterior angles rounded; mandibles truncate at the apex ; apical joint of maxillary palpi secu-
riform ; inner lobe of the maxille: unarmed ; antenne moderate, about reaching to the base of the thorax,
third joint as long as the first and second united, fourth to seventh decreasing in length and widening
outwardly, fourth and fifth oboval, sixth and seventh triangular, eighth to tenth broad and transverse,
eleventh large and broad, much longer than the tenth, and bluntly rounded at the apex ; head not very
deeply sunk into the prothorax, moderately large; epistoma rather broad, truncated in front; sides of the
front rounded, slightly swollen and divergent ; eyes narrow, transverse, not very large, moderately promi-
nent, intraocular space moderately broad; labrum not prominent; prothorax very strongly transverse,
almost twice as broad as long, lateral margins narrow and distinctly reflexed, base strongly bisinuate and
margined within, hind angles rectangular, anterior angles rounded or obtuse, closely embracing the elytra ;
scutellum large, scutiform, finely punctured; elytra a little wider than the thorax at the base (in our
species), about four times as long as the thorax, moderately convex, punctate-striate (in our species) or with
rows of coarse impressions, the scutellar stria deeply impressed, feebly rounded at the sides, widest beyond
the middle, transversely and shallowly impressed on each side just before the base, humeri distinct (in
our species); epipleurs narrow, widening at the base, and ending at last ventral suture; prosternum
horizontal, smooth, the apex strongly produced, convex, lanciform; mesosternum strongly raised and
tuberculiform on each side anteriorly, deeply concave within; legs moderate; femora thin ; tibie curved,
the apices pubescent within and feebly grooved on their external edge, spurs‘almost obsolete, the inter-
mediate and posterior pairs in the male with a sharp tooth on the inner side near the apex; tarsi moderately
long and stout, basal joint as long as the two following joints united, the basal joints densely clothed with
spongy fulvous hair beneath. Winged. Species black, or with angulated transverse red bands.

This genus will include one species from Mexico, the undescribed [phthimus brevicollis,
Laf., from Colombia, and 1. wndulatus, Chevr., from Guiana. Sthenobwa is not very
closely allied to any of the new genera described here; it is perhaps nearest to the

undescribed Upis (?) exarata, Dej., from Brazil. From Gatus, and other Central-

STHENOBGA.—ISICERDES. 113

American genera, this genus may be known by the narrower and more transverse eyes, the
broad and very short thorax, the less parallel elytra, the structure of the prosternum,
and the feebly channelled tibie. |

1. Sthenobeea apicalis. (Tab. VI. fig. 1, 2.)

Oblong ovate, rather broad, black, shining. Head closely, finely, and equally punctured; prothorax very short,
nearly twice as broad as long, the sides interrupted in the middle, narrowed anteriorly, anterior angles
broadly rounded, hind angles rectangular, anterior margin almost straight, base strongly bisinuate, and
with a short, very shallow, oblique impression on each side near the middle, between which the margin is
deeply impressed within, with an indistinct central line, finely and not very closely punctured, the disc
shining, the sides dull; elytra a little wider than the thorax at the base, humeri distinct, punctate-striate
(the punctures long and approximate), the interstices smooth and rather convex towards the suture, the
disc shining, the sides and apex duller, the strize less distinctly impressed behind, and with a reddish spot
on each side just before the apex.

Length 14 millim. (92.)

Hab. Mexico (coll. F. Bates).

One example.
Allied to the undescribed Iphthimus undulatus, Chevr., from Guiana.

GLYPTOTUS.

Glyptotus, Leconte, Proc. Acad. Phil. ix. p. 75; Lacord. Gen. Col. v. p. 729; Horn, Rev. Ten. N. A.
p. 841; Leconte & Horn, Class. Col. N. A. p. 377 (1883).

One species of this genus is known from Texas; we now add another from Mexico

and Nicaragua.

1. Glyptotus nitidus. (Tab. V. fig. 24.)
Glyptotus nitidus, F. Bates, in litt.

Black, shining. Head smooth, impunctate; prothorax broader than long, widest at the base, narrowing
gradually anteriorly, the sides distinctly margined and feebly sinuate just behind the middle, anterior
angles rounded, posterior angles acute, base strongly bisinuate and the margin distinctly impressed within,
shallowly, finely, and rather closely punctured ; elytra regularly and rather finely punctate-striate, the
punctures becoming coarser and more distant one from the other towards the sides, interstices flat, smooth,
or very finely and indistinctly punctured, rarely with shallow transverse wrinkles; prosternum strongly
declivous behind, the apex not produced.

Length 7-9 millim.

Hab. Mexico, Jalapa (Hoge); Nicaragua (coll. F. Bates), Chontales (Belt, Janson).

Allied to the North-American G. cribratus, Lec., but more shining, the elytra much
more finely punctate-striate, the thorax wider and more distinctly margined at the base.

ISICERDES.

Form of Glyptotus nitidus, Ch. Mentum trapeziform, inflexed on each side, winged, slightly raised in the
middle anteriorly, anterior angles distinct ; antenne short, scarcely reaching to the base of the thorax, third
joint short and scarcely as long as the united fourth and fifth, fourth and fifth oboval and subequal, sixth

“BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1885. QQ

114 HETEROMERA.

much broader than fifth, seventh to tenth broad and transverse, eleventh large and broad ; inner lobe of the
maxille unarmed ; apical joint of maxillary palpi securiform ; head deflexed, short ; epistoma short, in the
female broadly truncated, in the male broadly but feebly emarginate in front; sides of the front feebly swollen ;
eyes distant, large, broad oval; labrum not prominent, scarcely visible from above; prothorax strongly
transverse, distinctly margined at the sides, convex, hind angles prominent and slightly divergent, base
strongly bisinuate and scarcely margined within, closely embracing the elytra ; scutellum large, triangular ;
elytra wider than and nearly three times as long as the thorax, strongly convex, punctate-striate, or with
rows of coarsish impressions placed upon indistinct stri#, and with a distinct scutellar stria, base shallowly
impressed on each side near the rather distinct humeri; epipleure narrow, widening suddenly at the base,
and ending about the last ventral suture ; prosternum deflexed behind, horizontal or subhorizontal, and the
apex slightly produced ; mesosternum very feebly raised on each side anteriorly, rarely concave within ;
trochantin distinct ; legs short; femora unarmed, intermediate and posterior pairs slightly swollen in the
middle ; tibise curved, short, distinctly channelled on their outer edge, spurs very small or obsolete; tarsi
short, rather stout, basal joint about as long as the two following joints united; the basal joints not very
thickly clothed with hair beneath. Winged. Species black and shining.

The above characters have been drawn up to receive a few species from Central
America and Colombia. Jsicerdes may be known from Glyptotus by the comparatively
small head, very short transverse thorax, shorter legs, short basal joint to the hind tarsi,
the tarsi less thickly clothed with hair beneath, and the tibis more or less distinctly

channelled on their outer edge.

1. Isicerdes occultus. (Tab. VI. fig. 2.)

Oblong ovate, very convex, black, shining. Head sparingly and very finely punctured, the punctuation a little
more distinct and closer between the eyes; prothorax strongly transverse, lateral margins prominent,
slightly rounded at the sides, sinuate before the base, widest at the base and slightly narrowing anteriorly,
anterior angles produced and rounded, hind angles slightly divergent and subacute, shallowly and broadly
impressed just before the base, finely, distinctly, and not very closely punctured ; elytra with regular
rows of coarsish impressions placed upon shallow indistinct striw, the impressions finer towards the
suture, interstices smooth, in the male a little narrower and more parallel in form than in the female ;
prosternum subhorizontal, the apex slightly produced and broadly rounded, distinctly margined on each
side within, subrugulose; mesosternum very feebly excavated within ; ventral segments with scattered
longitudinal wrinkles.

Length 8-10 millim. (¢ 9.)

Hab. Muxtco, Tuxtla (Sallé); British Honpuras, Belize (Blancaneauz); GUATEMALA,
Cerro Zunil, Capetillo (Champion), Yzabal (Sallé); Panama, Volcan de Chiriqui
(Champion).

A common species in Chiriqui; and found by beating the still attached withered
leaves of fallen forest-trees, and, more rarely, under loose bark.

2. Isicerdes funebris.

Elongate oval, subparallel, convex, black, shining. Head closely and rather coarsely punctured, the front
and vertex smoother, the epistoma shallowly impressed on each side near the eyes ; prothorax strongly
transverse, the sides narrowly margined, very feebly crenulate anteriorly, feebly sinuate before the
base, anterior angles broadly rounded, hind angles subrectangular, transversely, broadly, and shallowl
impressed just before the base, distinctly and rather closely punctured; elytra long subparallel,
closely and not very coarsely punctate-striate, the interstices smooth and slightly convex towards the

ISICERDES.—HESIODUS. 115

sides ; prosternum deflexed behind, the apex broad, slightly produced, and margined within ; tibiz feebly

channelled on their outer edge, spurs almost obsolete.
Length 8 millim.

Hab. GuateMa.a, Zapote (Champion).

Two examples. Closely allied to a species from Colombia*, but longer, and the elytra
more finely punctate-striate. Of a different facies from J. occultus; flatter, less convex,
the thorax less distinctly margined at the sides; the elytra punctate-striate, the tibiz
less distinctly channelled, &c.

HESIODUS.

Allied to Isicerdes, and differing as follows:—Head shorter, rather more deflexed, more deeply sunk into the
thorax; the epistoma shorter, broadly rounded in front; the sides of the front very slightly swollen,
almost equally rounded with the epistoma, and scarcely divergent ; labrum not visible from above; eyes
more distant, more rounded and less transverse ; antenne as in Jsicerdes; prothorax narrowly margined
at the sides, the margins sometimes indistinctly crenulate, strongly transverse, the base bisinuate, closely
embracing the elytra; scutellum moderate in size, triangular; elytra and epipleure as in Jsicerdes;
prosternum subhorizontal, the apex slightly produced and rounded; mesosternum simple ; trochantin
distinct ; tibie not channelled on their outer edge, the spurs small, the posterior pair very slightly swollen
about the middle in the male; femora unarmed; tarsi variable, long and thin, and the basal joint longer
than the two following joints united, or (as in Jsicerdes) shorter and stouter, and the basal joint the length
of the two succeeding joints united. Winged. Species shining, slightly metallic or black.

This genus will include a few small and inconspicuous species from Central and South
America, and probably the North-American Haplandrus ater, Lec., which, on account
of the differences in the structure of the head, tibie (the spurs of the anterior pair
obsolete, of the intermediate and posterior short but distinct), &c., we think best sepa-
rated from Jsicerdes; the tarsi are variable in structure, and, except in H. longitarsis,
short as in Isicerdes. The species are of similar habits to Isicerdes, and found by
beating the branches or the still attached leaves of fallen trees.

Some allied forms, perhaps not generically distinct, are found in Java.

1. Hesiodus longitarsis. (Tab. VI. fig. 7, 3.)

Oblong ovate, very convex, bright brassy sncous, often with a purplish or greenish tinge, shining. Head finely,
shallowly, and sparingly punctured ; prothorax transverse, convex, scarcely wider behind than in front,

* Tsicerdes attenuatus.

Closely allied to I. funedris, and differing as follows :—The head less distinctly impressed on each side in front ;
the thorax slightly narrowed anteriorly, the lateral margins more distinctly crenulate, and more closely
and distinctly punctured ; the elytra comparatively shorter, more coarsely punctate-striate (the punctures
longer and coarser and not so close together) ; prosternum horizontal, impressed oa each side within, the
apex produced into a short broad tubercle, rugulose ; mesosternum raised on each side anteriorly, concave
within.

Length 8 millim.

Hab. Cotomsta (coll, F. Bates).

One example. Labelled “ G. attenuatum, Chevr.”

QQ 2

116 HETEROMERA.

the sides slightly rounded, feebly sinuate before the base, anterior angles rounded, hind angles subacute,
the base strongly bisinuate, usually feebly impressed transversely before the base, finely, shallowly,
and sparingly punctured; elytra strongly convex, rather long, slightly wider than the thorax, with
regular rows of fine distant impressions placed upon shallow indistinct strie, interstices exceedingly finely
and sparingly punctured ; legs black, rarely reddish brown; intermediate and posterior tarsi long and
thin, basal joint of the latter longer than the two following joints united.

Length 63-73 millim. (¢ 9.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hége); Nicaragua, Chontales (Belt).

Not rare in Mexico; one example only from Nicaragua, An allied species is found
in the Amazon region *.

2. Hesiodus sordidus.

Allied to H. longitarsis, and differing as follows :—Colour reddish brown, with a slight greenish tinge ; pro-
thorax more closely and distinctly punctured ; elytra punctate-striate, the punctures fine and approximate,
the interstices rather more distinctly punctured, scutellar stria distinct, the base straighter; tarsi shorter,
the basal joint of the hinder pair about as long as the two following joints united.

Length 6 millim.

Hab. Mxxico, Cordova (Sallé).—Brazit, Ega (coll. F. Bates).

One example from each locality.

3. Hesiodus jansoni.

Oblong ovate, strongly convex, black, shining. Head finely and rather closely punctured ; prothorax trans-
verse, widest at the base, slightly narrowing anteriorly, the sides slightly rounded and very feebly sinuate
before the base, feebly impressed transversely before the base, the base strongly bisinuate, distinctly, finely,
and rather closely punctured; elytra a little wider than the thorax, finely and rather closely punctate-
striate, the striz feebly impressed, interstices very finely and rather closely punctured, humeri distinct ;
tarsi short, basal joint of the hinder pair the length of the two following joints united.

Length 63-74 millim. (¢ @.)

Hab. Nicarasva, Chontales (Janson).

Several examples. Of the form of Jsicerdes occultus, but much smaller, the tibie
not grooved on their outer edge, the elytra finely and shallowly punctate-striate.

4, Hesiodus conspurcatus.
Oblong ovate, convex, black, shining. Head closely and not very finely punctured, the epistoma smoother ;
prothorax transverse, widest at the base, scarcely narrowing anteriorly, the sides slightly rounded before
the middle and almost straight behind, hind angles rectangular, lateral margins slightly crenulate, base

* Hesiodus brasiliensis.

Allied to H. longitarsis ; prothorax a little wider anteriorly, more distinctly, less finely, and more closely
punctured ; the elytra less finely punctate-striate, the punctures coarser and closer, the scutellar stria very

distinct ; tarsi much stouter and shorter, the basal joint of the hinder pair as long as the two following
joints united.

Length 6 millim.
Hab, Braz, Ega (coll. F. Bates). One example.

HESIODUS.—ILUS. 117

feebly bisinuate, very finely and diffusedly punctured; elytra long, strongly convex, with regular rows of
coarse longish impressions, the impressions becoming coarser and deeper outwardly, without impressed |

striz, the interstices smooth, humeri distinct ; tarsi short.
Length 543 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One example. Resembles Jsicerdes occultus, and the elytra sculptured as in that

species, but very much smaller; the eyes more distant, the tibie not grooved on their
outer edge.

5. Hesiodus debilis, (Tab. VI. fig. 6.)

Elongate oval, moderately convex, very dark reddish brown, shining. Head closely and rather coarsely punc-
tured ; prothorax strongly transverse, subquadrate, about as wide behind as in front, the sides slightly
rounded before the middle, almost straight behind, hind angles rectangular, the base feebly bisinuate,
closely and rather coarsely punctured; elytra scarcely wider than the thorax, subparallel, punctate-
striate, the punctures fine and approximate, the interstices finely, sparingly, and distinctly punctured,
scutellar stria distinct, humeri subdentiform and impressed within ; antenne short, third joint short and
scarcely as long as the united first and second joints, seventh to tenth joints strongly transverse ; tarsi
short, stout, basal joint of the hinder pair the length of the two following joints united.

Length 5 millim. .

Hab. GuatTEMALA, Pantaleon (Champion).

One example. Of the form of Isicerdes funebris; the structure of the posterior
tarsi and the elytral sculpture much as in that species, but very much smaller, the eyes
more distant, the tibie not channelled on their outer edge, the spurs of the inter-
mediate and posterior tibiee short but distinct.

ILUS.

Form of Haplandrus femoratus, Fabr. Mentum trapeziform, trilobed, inflexed on each side, strongly raised and
convex in the middle anteriorly, anterior angles distinct ; last joint of the maxillary palpi securiform ;
antenne short, scarcely reaching to the base of the thorax, widening outwardly, third joint rather long
and as long as the united first and second, fourth and fifth subequal and oboval in form, sixth and seventh
much wider and subtriangular, eighth to tenth broad and transverse and widening outwardly, eleventh
twice as long as and still broader than the tenth, and bluntly rounded at the apex; head short, broad,
sunk into the prothorax to the eyes ; epistoma broadly truncated in front, short ; sides of the front feebly
divergent and but little swollen; eyes distant, large, broad oval; labrum almost hidden from above ;
prothorax very short, strongly transverse, very narrowly margined at the sides, strongly bisinuate at the
base, hind angles divergent and acute, closely embracing the elytra; scutellum triangular ; elytra wider
and moré than three times as long as the thorax, with regular rows of shallow rounded impressions
and traces of obsolete stris ; epipleuree narrow, widened suddenly at the base, and ending about the last
ventral suture; prosternum subhorizontal, broad, the apex slightly produced and in the form of a short
blunt tooth, deeply impressed within, the centre raised and longitudinally convex ; mesosternum raised on
each side, concave within ; anterior and intermediate femora scarcely swollen; intermediate cox oblique,
the trochantin very small and narrow, and scarcely visible ; posterior femora widening on the inner side
from the base to about the middle, then abruptly emarginate, thus forming a short broad triangular
tooth; tibie curved, the extreme apices pubescent on their inner side, not grooved, the spurs of the
anterior pair almost obsolete, of the hinder pairs short and distinct ; tarsi rather long, basal joint of the

posterior pair the length of the two following joints united, and almost as long as the last joint. Winged.

118 - HETEROMERA.

A single species, of small size, from Costa Rica. This genus may be separated from
Haplandrus and Isicerdes, apart from other differences, by the oblique intermediate
coxee and the scarcely visible trochantin ; in this latter respect more nearly approaching
the group “ Ulomides.” The comparatively short thorax (the hind angles of which are
acute and divergent), long elytra, the antenne very distinctly widening outwardly (the
apical joint very large), and the almost obovate form will enable Idus to be readily
recognized amongst its allies.

1. Ilus apicicornis. (Tab. VI. fig. 3.)

Obovate, moderately convex, rather depressed above, black, shining. Head finely and distinctly punctured,
the epistoma separated from the front by an impressed transverse line, and with a shallow rounded
impression on each side before the eyes; prothorax short, strongly transverse, as wide in front as behind,
the sides rounded, narrowed and sinuate before the base, hind angles acute, outwardly directed, and
prominent, anterior angles broadly rounded and slightly produced, feebly emarginate in front, base strongly
bisinuate, shallowly, finely, and not very closely punctured ; elytra very long, a little wider than the
thorax, widening gradually from the base to the widest part some distance beyond the middle, beyond
which broadly rounded to the slightly produced apex, the base shallowly depressed about the scutellum
and on each side within the slightly prominent obtuse humeri, with regular rows of shallow coarsish
impressions placed upon shallow obsolete strie, the impressions becoming coarser outwardly and finer and
closer towards the suture.

Length 9 millim.

Hab. Costa Rica, Cache (Rogers). One example.

CHOASPES.
Choaspes, F. Bates, in litt.

Mentum narrow, about as broad as long, strongly inflexed on each side, longitudinally convex and much raised
in the middle, anterior angles rounded; antenne short, stout, widening outwardly, third joint short,
fourth about the length of the third, eighth to tenth broader than long, eleventh large and broad, and
almost as long as the united ninth and tenth; inner lobe of the maxille with a few spiny hairs at the
apex; apical joint of maxillary palpi securiform; head short, broad, the epistoma broadly rounded in
front in the female, subtruncate in the male; sides of the front (antennary orbits) slightly divergent,
rounded, and prominent ; eyes distant, transverse, moderately large and prominent, coarsely granulated ;
labrum not prominent; prothorax transverse, flattened above, base strongly bisinuate, deeply emarginate
in front, lateral margins reflexed and prominent, angles produced and prominent, closely embracing the
elytra; scutellum large, triangular; elytra broader than the thorax, convex, comparatively short and
broad, about two and a half times as long as the thorax, and with a short scutellar and eight regular rows
of coarse longish impressions placed upon feebly impressed strie, transversely impressed on each side before
the base ; humeri obtuse; epipleurz broad, smooth, feebly concave, narrowed gradually from the base
and ending abruptly just beyond the last ventral suture, and separated from the elytra by a very distinct
keel; prosternum horizontal, the apex produced and sublanciform, longitudinally impressed on each side,
the sides distinctly raised, the middle more or less longitudinally convex ; mesosternum raised into a distinct
tubercle on each side in front, deeply excavated within ; legs short ; the tibize distinctly channelled on their
outer edge, slightly curved, short, the spurs obsolete or indistinct ; anterior and intermediate femora slightly
swollen in the middle, sinuate or emarginate before the apex; posterior femora in both sexes swollen and
with a large triangular blunt tooth on the inner side near the middle, between which and the apex
emarginate ; tarsi rather stout, short, basal joint of the hinder pair as long as the two following joints
united. Winged. Species submetallic in colour ; form comparatively broad, convex.

CHOASPES. 119

This genus will include two species from Central America, and one or two others,
undescribed as yet, from Brazil. Choaspes may be known from its allies by the strongly
transverse and distinctly margined and angled thorax, the comparatively short and
broad and distinctly margined elytra, the short legs, the tibie grooved on the outer
edge (the spurs obsolete), the posterior femora armed in both sexes, the shining surface,
and submetallic colour. The rows of impressions on the elytra extend only to the
transverse basal depression, and do not reach the base.

1. Choaspes purpureus. (Tab. VI. fig. 4.)
Choaspes purpureus, F. Bates, in litt.

Oblong ovate, broad, subparallel, dull metallic purple, sometimes with an sneous tinge, rarely purplish-
black, slightly shining. Head distinctly, rather finely, and sparingly punctured; prothorax strongly
transverse, scarcely wider at base than at apex, not very convex, the sides very slightly rounded,
sinuate before the base, anterior angles produced and rounded, hind angles subacute, the disc slightly
raised in front, aud with a longitudinal fovea in the middle and another smaller impression (often obso-
lete) at the base, the base with a short oblique fovea on each side near the middle and just within the
margin, finely and sparingly punctured ; elytra with regular rows of coarse or moderately coarse longish
impressions placed upon indistinct strie, interstices flat and very finely punctured.

Length 7-9 millim. (¢ @.)

Hab. British Honpuras, Belize (Blancaneaur); GuateMata, Cubilguitz, Panima,

San Juan in Vera Paz (Champion); Nicaracua, Chontales (Belt, Janson); Panama,

Volcan de Chiriqui (Champion).

The specimens from the different localities differ somewhat in size, colour, and in the
punctuation of the elytra; but they are, I think, all referable to one variable species.
The antenne in the female are a little shorter, and the penultimate joints more trans-
verse than in the male.

The single individual from the State of Panama is blacker, and the impressions on
the elytra are deeper aad stronger than in the specimens from the other localities.

Found under loose bark or in the curled-up withered leaves of fallen forest-

trees.

9. Choaspes angulicollis. (Tab. VI. fig. 5.)

Allied to C. purpureus, and differing as follows :—More shining, colour bright black with a bluish-green tint ;
the eyes more transverse, and the intraocular space narrower ; the sides of the thorax straighter, the
anterior angles longer and still more prominent, the longitudinal fovea on the disc deeper, on each
side midway between this fovea and the margin is another oblique longish deep impression, the basal
fovese deeper ; elytra slightly longer, rather less parallel, slightly narrowing from the middle to the base,
and widest beyond the middle.

Length 9 millim.

Hab. Nicaragua, Chontales (Belt). ‘Two examples.

120 HETEROMERA.

TENEBRIO.

Tenebrio, Linnzus, Syst. Nat. ed. x. p. 417 (1758) ; Lacord. Gen. Col. v. p. 379; Horn, Rev.
Ten. N. A. p. 345; Motsch. Bull. de Moscou, xlv. pt. 2, pp. 26, 27; Lec. & Horn, Class.
Col. N. A. p. 378 (1883).

Neatus, Leconte, Class. Col. N. A. p. 233 (1862).

This genus, as at present recognized, includes only the well-known cosmopolitan
T. molitor and T. obscurus (both of which are now introduced almost all over the
world through the medium of commerce) and their allies.

1. Tenebrio molitor.
Tenebrio molitor, Linn. Faun. Suec. p. 224 (1761) ; Sturm, Fn. ii. p. 219, t. 46. £. n-p ; Muls. Col.
de France, Latig. p. 277; Horn, loc. cit. p. 345.

Hab. Costa Rica (Van Patten).—Evrore ; Norra AMERICA, &c.

Probably introduced from Europe.

The following genera are of uncertain position. ‘Till the numerous undescribed
species of tropical Tenebrionide are more fully worked out, it is better not to make new
groups for these isolated aberrant forms, which, like Apolites, Catapiestus, and others,
have at present few, if any, known allies.

RHACIUS.

Form of Calcar (Centorus, Muls.). Mentum variable, moderately large, subcordiform, flattened, and the
anterior angles rounded (&. sulcatulus), or small, transverse, widest behind, and the angles rounded
(R. quadricollis); ligula prominent, deeply emarginate in front; mandibles variable, pointed at the
apex (2. sulcatulus), or slightly fissile (2. quadricollis) ; inner lobe of the maxille unarmed ; antennee
short, stout, slightly widening outwardly, scarcely or about reaching the base of the thorax, third joint
scarcely as long as the first and second united, fourth to sixth obconic and decreasing in length, seventh
to tenth broader than long, eleventh large; head (as in Centorus) sunk into the thorax to the eyes, short,
broad, narrowing from the eyes forwards ; epistoma more or less confounded with the front, truncate or
feebly emarginate ; sides of the front not divergent, feebly swollen ; eyes broad, moderately large ; prothorax
long, quadrate, scarcely narrowing behind, very distinctly margined at the sides, closely embracing the
elytra; scutellum strongly transverse ; elytra long, narrow, scarcely wider than the thorax, widest at or
near the base, narrowing gradually posteriorly, regularly and closely punctate-sulcate or punctate-striate,
scutellar stria distinctly impressed, interstices flat or convex, very distinctly margined at the sides,
humeri distinct ; epipleure narrow, narrowing gradually from the base and extending to the apex;
prosternum flattened, produced, and truncate or rounded at the apex, not raised; middle coxal cavities
open ; trochantin distinct; third and fourth ventral segments without distinct coriaceous hind margin ;
legs short; intermediate and posterior femora (apparently in both sexes) swollen in the middle, and
with a strong triangular tooth, between which and the apex emarginate; tibial spurs distinct; tarsi
thinly clothed with spiny hairs beneath, last joint of the posterior pair about as long as the preceding
joints united. Winged. Surface slightly pubescent or glabrous.

The following characters, partly taken from unpublished MS. of Mr. F. Bates, have

RHACIUS. 121

been drawn up to receive two undescribed species, the Tenebrio sulcatulus, Dej., and
the Calcar quadricollis, Laferté, from Central and South America. Rhacius may be at
once known from the Old World genus Calcar by the very distinctly margined thorax
and elytra, the thorax scarcely narrowed at the base, the shorter antenne, toothed
femora, &c.; the head is formed much as in a species of Calcar (C. procerus, Muls.),
separated by Mulsant from that genus under the name of Centorus. The absence (as
in Calcar) of the distinct coriaceous hind margin to the third and fourth ventral
segments makes the genus difficult to locate satisfactorily ; the general form of one of
the species is similar to the North-American Tenebrio castaneus, Knoch (separated,
and in the writer’s opinion rightly, as generically distinct from Tenebrio in Mr. F. Bates’s
collection). Allied more distantly to Bius, Muls.; in both these genera, however, the
hind margins of the third and fourth ventral segments are distinctly coriaceous. In all
the specimens before me, consisting apparently of both sexes, the four hinder femora
are strongly toothed.
Both species have been beaten from herbage.

1. Rhacius sulcatulus. (Tab. VI. fig. 9.)

Tenebrio sulcatulus, De}. Cat. p. 226.

? Tenebrio opatroides, Perty, in litt.

Elongate, parallel, moderately convex, dark reddish brown or black, dull, slightly pubescent. Head closely
and rugulosely punctured, the epistoma separated from the front by a deep transverse impression ; pro-
thorax scarcely broader than long, subquadrate, feebly rounded at the sides, widest about the middle,
almost equally narrowed at the base and apex, broadly but not deeply emarginate in front, base feebly
bisinuate and almost straight, hind angles rectangular, very closely, finely, and rugulosely punctured, with
a smooth central line, and the disc shallowly impressed before the base ; elytra about twice as long as.
and but little wider than the prothorax, sides subparallel and narrowing very gradually from the base, the
apex broadly rounded, base nearly straight, humeri distinct, punctate-sulcate, the punctures muricate,
transverse, and closely placed, interstices narrow, convex, .almost smooth (finely and very sparingly
punctured) and shining. The entire surface beneath closely and finely punctured ; legs reddish brown ;
prosternum truncate at apex. 4

Length 8-10 millim.

Hab. Mexico, Vera Cruz, Playa Vicente (Sallé), Oaxaca (Hage), Yucatan (coll.
F. Bates) ; Guatemaua, El Reposo, San Gerénimo (Champion) ; Nicaracua, Chontales
(Janson).—SouTH AMERICA, Carthagena; Wesr Inptus, Cuba.

Many examples.

9. Rhacius quadricollis. (Tab. VI. fig. 10.)

Calcar quadricollis, Laferté, in litt.

Elongate, parallel, feebly convex, flattened above, black, shining, glabrous. Head closely, finely, and equally
punctured, the epistoma confounded with the front; prothorax quadrate, as long as broad, sides almost
nt, and narrowing very slightly towards the base, slightly convex anteriorly, hind

straight, widest in fro : :
angles rectangular, very closely, finely, and equally punctured, the base with a short, shallow, oblique

impression on each side about the middle ; elytra twice as long as and but little wider than the prothorax
at the base, sides almost straight, closely punctate-striate, the interstices flat and sparingly and finely

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1885. RR

122 HETEROMERA.

punctured. Beneath reddish brown, shining, very sparingly and finely, the sides more closely, punctured ;
prosternum slightly rounded at the apex, margined within; legs and antenne red or reddish brown.
Length 73 millim.
Hab. British Honpuras, Rio Hondo, Belize (Blancaneaux) ; GUATEMALA, Cubilguitz
(Champion).—Co.oms1a (coll. F. Bates, ex Laferté coll.).

Several examples. Smaller, narrower, and more shining than R. sulcatulus; the
sides of the thorax straight, the elytra differently sculptured, and the tarsi shorter.

EUPSOPHUS.
Eupsophus, Horn, Rev. Ten. N. A. p. 347 (1870) ; Lec. & Horn, Class. Col. N. A. p. 878 (1888).

A single species of this genus has been recorded from California; we now add
another from Mexico.

Eupsophus is placed by Dr. Horn (Joc. cit.) at the end of the group “ Tenebrionides,”
with the remark that it should probably constitute a separate tribe and be placed
near the “‘ Goniaderides” of South America.

In general form this genus resembles certain species of Himatismus or Epitraqus.

1. Eupsophus horni.

Eupsophus horni, F. Bates, in litt.

Allied to E. castaneus, and differing as follows :—Dull dark castaneous ; the head very closely and rugulosely,
the epistoma a little less closely but rather more coarsely, punctured; prothorax finely, closely, and
confluently punctured; elytra irregularly and closely punctured, but not so closely as the head and
prothorax, the punctures separate, the interspaces feebly or indistinctly wrinkled, and with traces of obsolete

shallow longitudinal grooves. Beneath slightly shining, finely and rather closely punctured.
Length 103 millim.

Hab. Mexico (coll. F. Bates).

Two examples. . horni may be readily separated from E. castaneus, judging from
the description, by the very close and uniform punctuation of the dull upper
surface.

Group PEDINIDES.

This group will include a few genera, all but one of which are found in North
America. With the exception of Hopatrinus, the eyes are, in our genera, completely
divided. One genus (Blapstinus) is represented by many species, the remainder by
one or two species only. Mecysmus, a genus found at Fort Yuma in California, and
near our northern boundary, has not yet been received from our country.

Other allied genera, Diastolinus and Cenophorus*, are found in the Antilles.

* Single examples of Diastolinus puncticollis, Muls., and D. costipenms, Muls., and of Cenophorus viduus,
Muls., labelled “‘Mex.,” are contained in Mr. F. Bates’s collection ; it is possible there is some mistake about this
locality, as these species were all described from the island of Santo Domingo. Diastolinus is, however, known
from the north-east coast of South America; the genus may occur also on the Atlantic side of Central America.

HOPATRINUS.—PEDON(CGCES. 123

HOPATRINUS.

Opatrinus, Latreille, Régne Anim. 2nd edit. v. p. 19 (1829) ; G. R. Waterhouse, Ann. Nat. Hist.
xvi. p. 34 (1845); Muls. & Rey, Mém. Acad. Lyon, ii. pp. 295-298 (1852); Lacord. Gen.
Col. v. p. 240; Leconte, Class. Col. N. A. p. 226; Horn, Rev. Ten. N. A. p. 348; Leconte
& Horn, Class. Col. N. A. p. 878.

Anchophthalmus, Gerst. Monats. Berlin Acad. 1854, p. 533.

Zidalus, Muls. & Rey, loe. cit. p. 296.

Zodinus, Muls. & Rey, loc. cit. p. 315.

Hopatrinus, Gemm. & Harold, Cat. vii. p. 1914.

Species of this genus are found in the warmer parts of both the Old and the New
World and also in the Antilles. Two species are found in Central America; these
appear, as also do those of North America, to be confined to the Atlantic side of the
continent. The genus is recorded from Southern Colombia, but we have not yet
received it from our country from south of the Polochic valley in Guatemala.

1. Hopatrinus anthracinus.
Opatrinus anthracinus, Muls. & Rey, Mém. Acad. Lyon, ii. p. 304 (1852)"; Dej. Cat. 3rd edit.
p. 218. |
Opatrinus pullus, Schénh. Dej. Cat. loc. cit.’

Hab. Mexico! (coll. F. Bates), Yucatan 1, Campeachy in Yucatan (Sal/é), Merida in
Yucatan (Hoge); Guatemaza, San Juan and Senahu in Vera Paz, Teleman (Champion).
—ANTILLES, Cuba, Jamaica?; t CoLtomsBral.

This species was sent by Herr Hoge in great numbers from Yucatan.

2. Hopatrinus mestus.
Opatrinus mestus, Muls. & Rey, Mém. Acad. Lyon, ii. p. 807 (1852)*; Dej. Cat. 3rd edit. p. 218.

Hab. Merxico1, Cordova, Cosamaloapam, San Andres Tuxtla (Sallé), Vera Cruz,
Jalapa (Hoge); BritisH Honpuras, Rio Sarstoon, Rio Hondo (Blancaneaux).—Sovuta

America }.

Perhaps a small race of H. anthracinus.

PEDONCECES.

Pedoneces, G. R. Waterhouse, Ann. Nat. Hist. xvi. p. 32 (1845).
Tessaromma, Boheman, Res. Eugen., Zool. i. p. 91 (1858). 7
Lachnoderes, Mulsant and Rey, Ann. Soe. Agr. Lyon, 3rd ser. iii. p. 166 (1859).

Five species of this genus have been described, four from the Galapagos Islands

and one from Panama.

RR 2

124 HETEROMERA.

1. Pedoneces lugubris.
Tessaromma lugubris, Boh. Res. Eugen., Zool. i. p. 91, t. i. figg. 5, a-f?.

Hab. Panama }.

Unknown to me.
BLAPSTINUS.

Blapstinus, Latreille, Régne Anim. 2nd edit. v. p. 21 (1829); G. R. Waterhouse, Ann. Nat. Hist.
XV. p. 34 (1845); Lacord. Gen. Col. v. p. 250; Muls. & Rey, Ann. Soc. Imp. Agric. de
Lyon, 1859, p. 180 (part.) ; Lec. Class. Col. N. A. p. 227; Horn, Rev. Ten. N. A. p. 351;
Lec. & Horn, Class. Col. N. A. p. 879.

Heteropus, Castelnau, Hist. Nat. Col. i. pt. 1, p. 221.

Aspidius, Muls. & Rey, loc. cit. p. 187.

Species of Blapstinus are found throughout temperate and tropical America, the
genus ranging from Canada to the Argentine Republic and Chili; one or two species
are also found in the Antilles. Dr. Horn (loc. cit.) records fourteen species from the
United States and Canada. Of the twenty-four species included under this genus in
the Munich catalogue not one is given from our country. Blapstinus is well represented
in Central America by upwards of twenty species, the majority of which are here
described as new. The headquarters of the genus appear to be in Central America
and the region adjacent to our northern boundary. Various species, mostly undescribed,
are known from South America.

The males of some of the species have the anterior tibie slightly curved, and swollen
in the middle or towards the apex; the metasternum and the ventral surface (the first
and second and the base of the third segments) longitudinally excavate, and the last
ventral segment flattened in the middle.

The South American genus Lodinus, formed by Mulsant and Rey upon a species from
Buenos Ayres and Chili, is scarcely separable from Blapstinus.

The different species are found beneath stones in open places, also upon the sandy
banks of rivers and streams; they are sometimes to be seen running on the ground in
sunny weather, and are also to be found by beating low herbage.

* Winged Species.
a. Klytra regularly punctate-striate.

1. Blapstinus mexicanus.
Opatrinus mexicanus, Sturm, in litt.

Oblong ovate, convex, dark reddish brown, shining, very sparingly clothed with scattered brownish recumbent
hairs. Head closely and coarsely punctured, the epistoma broadly but not deeply emarginate ; prothorax
convex, transverse, the sides rounded, widest about or a little behind the middle, slightly narrower in
front than at the base, the angles not very prominent, hind angles obtuse, the base bisinuate, closely and
rather coarsely punctured, the punctures more or less confluent towards the sides, separate on the disc,
with an indistinct central groove; scutellum finely and closely punctured; elytra convex, regularly

BLAPSTINUS. 125

striate, the strie finely and shallowly punctured, the interstices flat, rather coarsely and distinctly but not
very closely punctured ; legs reddish brown.
Length 8 millim. ( 9.)

Hab. Mexico (Sallé, ex coll. Sturm), Yucatan (coll. F. Bates).

Two mutilated examples are all I have seen of this species. Labelled B. chevrolati,
Pilate, in Mr. F. Bates’s collection.

2. Blapstinus tibialis. (Tab. VI. fig. 19, 3.)

Allied to B. mesxicanus, and differing as follows :—More convex; the thorax widest in the middle, longer and
narrower, the sides distinctly narrowed and sinuate before the base, very little broader at the base than
at the apex, anterior angles more prominent and subacute, hind angles subrectangular, more equally
punctured, the punctures not confluent towards the sides; the elytra sculptured as in that species ; legs
reddish brown; anterior tibie in the male slightly curved, swollen on the inner side about the middle,
and narrowing at the base and apex. Beneath shining, rather coarsely punctured and wrinkled; in the
male the metasternum and ventral surface towards the base longitudinally excavate in the middle.

Length 7-8 millim. (¢ 9.)

Hab. Guatemata, Zapote, El Reposo, Capetillo, El Tumbador (Champion); Nicaragua,

Granada (Sallé).

Rather common on the Pacific slope in Guatemala at elevations of from 2000 to
4000 feet. B. tibialis may be known from the other described species of the genus by
its convex form, the somewhat shining surface, the coarsely punctured interstices of the
elytra, and the thickened anterior tibiee in the male.

3. Blapstinus grandis. (Tab. VI. fig. 18, ¢-)

Oblong ovate, convex, dark reddish brown, subopaque, sparingly clothed with recumbent brownish hairs.
Head closely and coarsely punctured, the epistoma rather deeply emarginate ; prothorax convex, trans-
verse, widest about the middle, the sides rounded and slightly sinuate before the base, anterior angles
prominent and subacute, hind angles obliquely rectangular, base strongly bisinuate, closely and rather
finely punctured, the punctures separate and finer than those upon the head, with an indistinct central

groove; scutellum very ‘closely and finely punctured; elytra regularly punctate-striate, the punctures
moderately coarse but not very deeply impressed, the disc slightly depressed, the interstices flat and finely
and rather closely punctured, the apices slightly swollen and divergent; legs reddish brown; anterior
tibie slightly curved in both sexes, slightly swollen from a little before the middle to the apex in the
male, Beneath shining, finely and rather closely punctured; in the male the metasternum behind and
the ventral surface (the first and second and the base of the third segments) broadly and deeply excavate
longitudinally, and the last segment flattened, in the middle.
Length 92-103 millim. (d 9 -)
Hab. Nicaracua, Chontales (Belt, Janson).

Apparently rather common at Chontales, and found in some numbers by the late

Mr. E. Janson.

4, Blapstinus interstitialis. (Tab. VI. fig. 16, 2.)
Opatrinus punctulatus, Jacq. Duval in Sagra’s Hist. de Cuba, vii. (Spanish edit.) p. 60 (1856) ';
ibid. (French edit.) p. 141 (1857) ; Dej. Cat. 3rd edit. p. 213 (nec Solier}. -

Var. Opatrinus interstitialis (Chevr.), Dej. Cat. loc. cit. *

126 HETEROMERA.

Hab. t Norta America, Texas (coll. F. Bates)—Muxico?, Yucatan (coll. F. Bates),
Etla, Juquila, Cuernavaca, San Andres Tuxtla, Cordova, Putla, Vera Cruz (Sallé), Jalapa,
Vera Cruz (Hoge), Monclova in Coahuila, Minas Viejas, San Luis Potosi (Dr. Palmer) ;
GUATEMALA, near the city, Duefias (Salvin), Yzabal (Sal/é), near the city, Duefias, Cape-
tillo, San Joaquin, San Gerdénimo, Zapote, Volcan de Atitlan (Champion); Nicaragua
(Sallé, coll. F. Bates), Chontales (Janson); Costa Rica (Van Patten), Irazu, Cache
(Rogers); Panama, Caldera, Volcan de Chiriqui, Bugaba (Champion).—WeEst Inp1Es, Cuba!.

This species is abundant throughout Central America; it is also found in Cuba and
Texas.

Examples from Dejean’s collection from Mexico and Cuba are before me; these are
identical with our common: Central-American species. The name B. punctulatus, Jacq.
Duv., having been previously used by Solier (Gay’s Hist. Chil. p. 233, 1851) for
another species, I adopt the MS. name JB. interstitialis, Chevr. This species may be
known from B. dilatatus by the comparatively less transverse thorax, the sides of which
are less rounded and wider towards the base, the angles much more distinct, and the
surface not so closely and less confluently punctured ; the strie more deeply impressed
and the punctures coarser, the interstices more distinctly, less finely, and not so closely
punctured; the upper surface more shining. In some examples the sides of the thorax
are rather less rounded and straighter towards the base than in others; in one example
from Juquila the thorax is broader and more strongly rounded at the sides, though
agreeing in all other respects with the very long series of upwards of one hundred
examples before me. Labelled Opatrinus striatus, Say, in the Sallé collection.

5. Blapstinus longicollis.

Elongate oval, subparallel, moderately convex, black, opaque, densely clothed with recumbent brownish hairs.
Head coarsely, closely, and equally punctured, the epistoma somewhat deeply emarginate; prothorax
feebly convex, comparatively elongate, rather broader than long, widest at the base, the sides almost
straight (rarely feebly sinuate) from the middle to the base, and slightly narrowed and rounded anteriorly,
the angles prominent and subacute, the base strongly bisinuate, very closely and rather coarsely punctured,
the punctures separate and rather finer than upon the head, with an obsolete central channel; scutellum
closely and finely punctured ; elytra elongate, subparallel, slightly wider than the prothorax at the base,
regularly punctate-striate, the punctures moderately coarse, transverse, and somewhat deeply impressed,
the interstices flat, finely and not very closely punctured; legs black; anterior tibie similar in both
sexes. Beneath slightly shining, first and second ventral segments rather coarsely punctured and wrinkled ;
in the male the metasternum and ventral surface longitudinally and broadly excavate in the middle,

Length 74-84 millim. (3 9.)

Hab. GuatEMata, Champerico (Champion); Nicaracua, Chontales (Belt), Granada
(Sallé).

Six examples. A comparatively long and narrow species; the upper surface opaque,
and densely clothed with recumbent brownish hairs; the thorax long, and the sides
almost straight behind. In general form this species resembles somewhat the Old
World genus Gonocephalum.

BLAPSTINUS. 127

6. Blapstinus dilatatus.
Blapstinus dilatatus, Lec. Ann. Lyc. New York, v. p- 146°; Horn, Rev. Ten. N. A. p. 853’.

Hab. Norra America, Colorado valley 1, Arizona ?.:—Mexico, Northern Sonora (Mor-
rison).

7. Blapstinus errabundus.

Oblong ovate, convex, dull brownish black, when fresh somewhat thickly clothed with recumbent golden or
brownish hairs. Head closely and rather coarsely punctured; prothorax convex, strongly transverse,
widest at the base, narrowing anteriorly, the sides feebly sinuate behind the middle, base strongly
bisinuate, anterior angles not very prominent and obtuse, hind angles prominent, directed backwards, and
subacute, closely and rather coarsely punctured, the punctures not confluent ; elytra convex, widest about
the middle or towards the base, regularly punctate-striate, the punctures shallow and rather fine, the
interstices flat and finely and closely punctured ; legs reddish brown ; anterior tibiz similar in both sexes.
Beneath slightly shining, finely and sparingly punctured.

Length 53-6 millim. (¢ 9.)

Hab. Mexico, Tuxtla (Sallé); Nicaragua, Chontales (Janson); Panama, San Lorenzo,
Pefia Blanca (Champion).

A few examples. Of the size and form of B. brevicollis, Lec., from California, but
narrower, more convex, not so dull, and the thorax not confluently punctured. Closely
allied to B. brunnipes, Dej., from Cayenne; the thorax more distinctly and not so
finely punctured.

8. Blapstinus insularis.

Allied to B. errabundus, and differing as follows :—Rather more convex; the prothorax rather narrower, not
so broad at the base, widest about the middle, the sides nearly straight towards the base, the anterior
angles more prominent and less obtuse, rather more coarsely punctured; the elytra rather more convex,
widest almost behind the middle, the strie more deeply impressed (the punctures, however, are not
coarser), the interstices feebly convex and more coarsely and not so closely punctured.

Length 6 millim. (2.)

Hab. Panama, Taboga Island (Champion).

One example.

9. Blapstinus umbrosus.

Oblong ovate, rather convex, black, subopaque, clothed with recumbent dark brownish hairs. Head coarsely
and closely punctured ; prothorax broader than long, widest at the base, narrowing a little anteriorly,
slightly rounded at the sides, the angles not very prominent, apex feebly emarginate, base feebly bisinuate,
very closely, equally, and rather finely punctured, the punctures here and there confluent ; elytra shal-
lowly, finely, and regularly punctate-striate, the punctures subtransverse, the interstices flat towards the
suture, feebly convex towards the sides, indistinctly wrinkled transversely, finely, irregularly, and rather
sparingly punctured ; legs black ; anterior tibiee similar in both sexes.

Length 5-6 millim. (d 2.)
Hab. Mexico, Northern Sonora (Morrison).

Many examples received from the late Mr. Morrison as B. pulverulentus, Mann.; these
do not agree with either of the two or three N orth-American species standing under that

128 HETEROMERA.

name in Mr. F. Bates’s collection, nor with the description of that species. Smaller
duller, and narrower than B. pratensis, Lec.; the base of the thorax straighter, and the
hind angles less prominent; the strie more lightly impressed and more finely and less
regularly punctured, the interstices less regularly punctured and slightly wrinkled
transversely.

From the other species here recorded this species may be known by the very closely
and rather finely punctured thorax, and by the dark brownish pubescence of the
upper surface.

10. Blapstinus palmeri.

Of the size and form of B. umbrosus, and differing as follows :—The prothorax not quite so closely punctured,
the punctures of the striz not so fine and more distinct one*from another, the interstices flat and finely
and closely punctured ; not so dull, brownish black or black, the upper surface clothed with a cinereous
or light brown pubescence. .

Length 53-6 millim. (¢ 9.)

Hab. Mexico, San Pedro and Monclova in Coahuila, Guajuco in Nuevo Leon
(Dr. Palmer).

Several examples.

11. Blapstinus substriatus.

Blapstinus substriatus, Laferté, in litt.

Blapstinus anthracinus, Sturm, in litt.

Oblong ovate, moderately convex, black, slightly shining, sparingly clothed with fine cinereous recumbent
hairs. Head coarsely and closely punctured; prothorax strongly transverse, widest a little before the
base, the sides slightly rounded and almost straight before the base, angles rather obtuse, apex feebly
emarginate, base feebly bisinuate and the usual oblique fovea on each side lightly impressed, very closely
and rather coarsely punctured, the punctures more or less confluent ; elytra regularly and finely punctate-
striate, the strie narrowly and lightly impressed, the interstices flat and closely and rather coarsely
punctured; legs black ; anterior tibie similar in both sexes.

Length 44-53 millim. (¢ 2.)

Hab. Mexico (coll. F. Bates), Puebla, Toluca, Guanajuato (Sallé), Jalapa (Hoge),
Valle del Maiz, San Luis Potosi, Parras in Coahuila (Dr. Palmer).

Locally common in Mexico. Allied to the North-American B. pulverulentus, Mann. ;
the thorax shorter and more transverse, and the strize of the elytra finer and more lightly
impressed. From B. mestus, Melsh., the species may be known by the less produced
hind angles of the thorax, &c.

12. Blapstinus buqueti. (Tab. VI. fig. 17, ¢.)

Blapstinus buquetii, Laferté, in litt.
Blapstinus puberulus, Klug, in litt.

Elongate oval, moderately convex, dull brownish black, rather densely clothed with coarse brownish recumbent
hairs. Head rather coarsely but not very closely punctured ; prothorax transverse, widest at the base,
the sides slightly rounded and feebly sinuate before the not very prominent angles, apex rather deeply

BLAPSTINUS, 129

emarginate, the base distinctly bisinuate and the usual oblique fovea on each side lightly impressed, rather
coarsely, equally, and not very closely punctured ; elytra rather long, lightly and finely striate, the strize
in the form of fine shallow impressed lines, the interstices flat, the surface punctured like the prothorax ;
legs reddish brown, the anterior tibiw similar in both sexes.
Length 5-6 millim. (¢ 9.)
Hab. Panama, San Miguel in the Pearl Islands (Champion).—CotomBia; GUIANA,
Cayenne (coll. F. Bates).

I have only seen three examples (one from each locality) of this species. B. buquetz
may be known from the other species here described by the coarse uniform punctuation
of the upper surface and by the sculpture of the elytra, the strice of which appear as
fine impressed lines, and the surface punctured like the thorax.

13. Blapstinus egenus.
Blapstinus egenus, De}. Cat. 3rd edit. p. 213.

Oblong ovate, convex, dark reddish brown, slightly shining, clothed with scattered recumbent brownish hairs.
Head coarsely and rather closely punctured ; prothorax transverse, widest at the base, slightly narrowing
anteriorly, the sides slightly rounded and feebly sinuate before the base and apex, the angles somewhat
prominent, the apex broadly but not deeply emarginate, the base distinctly bisinuate, the lateral margins
slightly thickened, coarsely but not very closely punctured, the punctures separate and scarcely confluent ;
elytra convex, regularly, shallowly, and coarsely punctate-striate, the interstices flat or feebly convex,
rather coarsely and sparingly punctured ; legs reddish brown, anterior tibize similar in both sexes.

Length 5-53 millim. (3 2.)
Hab. Guaremana (Sallé), San Gerénimo, Duefias, Zapote (Champion); Nicaracua,
Chontales (Janson); Panama, La Caldera in Chiriqui (Champion).—Co.omBia, Car-

thagena.

Taken in plenty at San Gerdénimo on the sandy banks of the small streams in that
neighbourhood. A small, reddish-brown, convex, slightly shining species; the thorax
coarsely punctured, the elytra regularly and rather coarsely punctate-striate, the inter-

stices distinctly and rather coarsely punctured.

14. Blapstinus intermedius.

Of the size and form of B. egenus, but differing as follows:—The prothorax more finely and more closely
punctured; the elytra regularly but more finely and closely punctate-striate, the interstices more finely
and much more closely punctured; the upper surface more sparingly pubescent; legs red or reddish
brown ; anterior tibie similar in both sexes.

Length 5-53 millim. (¢ 2.)

Hab. Mexico (Sallé); Guatemata, Paraiso (Champion); Nicaracua, Chontales

(Janson).

Found in plenty at Chontales.

15. Blapstinus sulcipennis. (Tab. VI. fig. 21.) |
Oblong ovate, convex, dark reddish brown, slightly shining, very sparingly clothed with

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1885. SS

brown recumbent

1380 HETEROMERA.

coarsish hairs. Head coarsely and closely punctured ; prothorax transverse, widest about the middle, the
sides rounded and feebly sinuate before the base, anterior angles obtuse, hind angles rectangular, the base
bisinuate, coarsely but not very closely punctured, the punctures not confluent, the disc darker in colour ;
elytra comparatively short, convex, regularly and very coarsely punctate-striate (almost sulcate), the
interstices towards the suture moderately, towards the sides strongly, convex, sparingly but distinctly
punctured, scutellar stria deeply impressed ; antenne stout; legs stout, reddish brown, the inner half of
the femora darker, anterior tibie similar in both sexes.
Length 4-44 millim. (¢ 92.)

Hab. Guatemata, Zapote, Las Mercedes (Champion).

Four examples. A small, comparatively short, and convex species, with stout legs
and antenne, the thorax coarsely punctured, the elytra coarsely and deeply punctate-
striate, the interstices of the elytra strongly convex towards the sides. Smaller and
shorter than B. egenus, the striz more deeply impressed and more coarsely punctured,
the interstices convex.

16. Blapstinus nitidus. (Tab. VI. fig. 15, ¢.)

Elongate oval, moderately convex, black, shining, glabrous. Head coarsely and closely punctured ; prothorax
transverse, widest at the base, narrowing anteriorly, the sides slightly rounded and feebly sinuate before
the somewhat prominent but obtuse angles, the apex broadly but feebly emarginate, the base
feebly bisinuate, coarsely but not very closely punctured, the punctures not confluent ; elytra regularly
punctate-striate, the punctures rather coarse and elongate, the interstices flat and sparingly and finely
punctured ; legs black; anterior tibic in the male abruptly widened on the inner side from the middle to
the apex, strongly emarginate towards the base.

Length 4-43 millim. (¢ 2.)

Hab. Muxico, Jalapa (Hége).

Two examples. This small species may be known by its elongate and convex
form, the shining and glabrous surface, and the structure of the anterior tibie in the
male.

17. Blapstinus longipennis.

Elongate oval, subparallel, moderately convex, brownish black, slightly shining, sparingly clothed with
cinereous pubescence. Head coarsely and rather closely punctured; prothorax strongly transverse,
widest at the base, very slightly narrowing anteriorly, the angles not very prominent, the apex feebly
emarginate, the base very feebly bisinuate, the sides slightly rounded, the dise feebly impressed just before
the base, rather coarsely but not very closely punctured, the punctures separate ; elytra more than twice
as long as the prothorax, subparallel, regularly, closely, shallowly, and rather coarsely punctate-striate, the
interstices flat and rather coarsely but not very closely punctured ; legs brownish black, the knees paler.

Length 6-64 millim. (¢ ¢.)

Hab. Mexico, Presidio (forrer).

Allied to but probably distinct, judging from the description, from B. longulus, Lec. ;
larger, longer, more convex, and more shining than B. atratus, the sides of the thorax
more rounded and the hind angles more obtuse, the interstices of the elytra more
distinctly punctured.

BLAPSTINUS. 131

18. Blapstinus longulus.
Blapstinus longulus, Lec. Ann. Lyc. New York, v. p. 147'; Horn, Rev. Ten. N. A. p. 3547.

Hab. Nortu America, River Gila 1, Southern Arizona 2.

Found on our northern frontier.

19. Blapstinus atratus. (Tab. VI. fig. 20.)

Elongate oval, subparallel, moderately convex, dull black, when fresh sparingly clothed with fine recumbent
cinereous hairs. Head closely and coarsely punctured; prothorax strongly transverse, widest at the base,
slightly narrowing anteriorly, the sides very feebly rounded and sinuate before the base, apex feebly
emarginate, base feebly bisinuate, anterior angles obtuse, hind angles rectangular or subacute, closely and
rather finely punctured, the punctures separate; elytra rather long, subparallel, regularly, shallowly, and
rather finely punctate-striate, the interstices flat and finely and rather closely punctured ; legs black, the
tibiee paler ; anterior tibie similar in both sexes.

Length 4-5 millim. (¢ 2.)

Hab. Mexico, Tehuacan (Hége); Guatemaza (Sallé), near the city, San Joaquin, San
Geronimo, Panajachel, Champerico, Zapote, El Jicaro (Champion) ; Nicaraeva (Sallé) ;
Panama, Taboga Island (Champion).

Rather common in Guatemala. A small, narrow, dull black species, not very closely
allied to any other recorded here. A closely-allied form is found in the island of

Santo Domingo.

b. Elytra with the strie interrupted.

20. Blapstinus emmenastoides. (Tab. VI. fig. 22.)

Oblong ovate, convex, dull brownish black, with a slight bronzy tinge, rather densely clothed with light brown
or cinereous coarsish recumbent hairs. Head coarsely and very closely punctured; prothorax convex,
transverse, widest at the base, narrowing anteriorly, the sides slightly rounded and feebly sinuate before
the angles, apex rather deeply emarginate, base strongly bisinuate, angles somewhat prominent, very
closely and coarsely punctured, the punctures more or less confluent anteriorly and towards the sides ;
elytra convex, shallowly and rather finely punctate-striate, the strie lightly impressed and more or less
interrupted, and the punctures coarser towards the sides, the interstices flat, and closely, irregularly, and
rather coarsely punctured ; legs black ; anterior tibie similar in both sexes; the anterior tarsi not very
strongly dilated in the male. Beneath slightly shining, rather coarsely punctured and longitudinally
wrinkled.

Length 5-6 millim. (¢ 9.)

Hab. Mexico, Juquila (Sallé), Jalapa (Hoge); Guatemata, Yzabal (Sallé), Aceytuno

(Salvin), Ostuncalco 7500 feet, San Martin, Quezaltenango, Panajachel, Capetillo,

Cerro Zunil, Duefias (Champion).
Common beneath stones in the ‘ Los Altos’ region of Guatemala. A small, dull,
convex species, the thorax coarsely and almost confluently punctured, the striz of the

elytra more or less interrupted.

SS 2

132 HETEROMERA.

** Anterous Species.

21, Blapstinus obliteratus.

Oblong ovate, rather convex, black, opaque, almost glabrous,
blackish hairs. Head coarsely and not very closely punctured, the epistoma somewhat deeply
prothorax transverse, widest about the middle, scarcely broader at the base than at the apex, the sides
rounded and almost straight towards the base, anterior angles obtuse, hind angles subrectangular, apex
broadly but feebly emarginate, base feebly bisinuate and without any trace of the usual shallow fovea on
each side, coarsely but not closely punctured, the punctures not confluent ; scutellum finely and closely
punctured ; elytra regularly striate, the strie rather deeply impressed and finely and not very closely
punctured, the interstices feebly convex, and very finely, shallowly, and sparingly punctured ; legs black ;
apterous.

Length 6 millim. ( 9.)

Hab. Panama, Chiriqui (£ib0e).
One example. Of a different facies from any species of the genus known to me ; the

thorax comparatively very coarsely, equally, but not very closely punctured ; the inter-
stices of the elytra very finely and sparingly punctate.

very sparingly clothed with fine recumbent
emarginate ;

NOTIBIUS.

Notibius, Leconte, Ann. Lyc. New York, v. p. 145 (1852) ; Class. Col. N. A. p. 227; Horn, Rev.
Ten. N. A. p. 355; Lec. & Horn, Class. Col. N. A. p. 379.

Six species of this genus are known, all from the desert regions of California and
Arizona; we now add two others from Central Mexico.

1. Notibius rugipes.

Oblong ovate, convex, dull black, when fresh sparingly clothed with dark brownish pubescence. Head very
closely and rather coarsely punctured, the punctures more or less longitudinally confluent ; prothorax
convex, broader than long, the sides rounded, narrowed at base and apex, and narrowly margined, widest
at or a little behind the middle, apex very feebly emarginate, base subtruncate, all the angles strongly
obtuse and not prominent, very closely and finely punctured, the punctures longitudinally confluent
towards the sides, the disc sometimes feebly impressed behind the middle, not closely embracing the
elytra; scutellum indistinct ; elytra convex, slightly rounded at the sides, widest before the middle, the
humeri obsolete and broadly and obliquely rounded (not meeting the hind angles of the prothorax), regu-
larly, finely, and closely punctate-striate, the interstices flat, distinctly, sparingly, and rather coarsely
punctured, the punctures very little finer than those of the strie ; legs black, coarsely punctured, anterior
tibiee similar in both sexes, in the male rather longer and stouter (the femora especially), and the posterior
tibie: on the inner side from the middle to the apex clothed with longish fulvous hairs. Beneath slightly
shining, coarsely muricate-punctate, the last ventral segment in the male transversely excavate ; intercoxal
process broadly truncate at the apex.

Length 6-643 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates), Puebla (Sallé), Tehuacan (Hoge).

Sent in some numbers by Herr Hoge. Of the size and general form of YW. opacus,
Lec., and WV. sulcatus, Lec., but not very nearly allied to any described species.

2. Notibius affinis. (Tab. VI. fig. 11, ¢.)

Allied to WN. rugipes, and differing as follows:—The head and prothorax more closely and more confluently

CONIBIUS.—ULUS. 133

punctured ; the prothorax broader and more transverse, the anterior angles subacute, the hind angles

subrectangular, the apex more distinctly emarginate ; elytra as in NV. rugyes; slightly larger and broader
in form.

Length 6-7 millim. (¢ 2.)
Hab. Mexico, Tehuacan (Hoge).

Two examples. Found in company with WV. rugipes.

CONIBIUS.

Conibius, Leconte, Ann. Lyc. New York, v. p. 145 (1852); Class. Col. N. A. p. 227; Horn, Rev.
Ten. N. A. p. 350; Lec. & Horn, Class. Col. N. A. p. 379.

Three species of this genus are known from California; we now add another from
Mexico and Guatemala.

1. Conibius brunnipes. (Tab. VI. fig. 12.)

Heterophaga brunnipes, Sturm in litt.

Elongate oval, subparallel, convex, black, rarely reddish brown, shining, glabrous. Head closely but not very
coarsely punctured; prothorax broader than long, broadest before the middle, the sides rounded ante-
riorly, slightly narrowing behind, and feebly sinuate just before the base, the anterior angles obtuse,
the hind angles subrectangular, apex feebly emarginate, the base subtruncate, lateral margins distinct,
very closely and finely punctured, the punctures separate on the disc and slightly confluent at the
sides ; elytra scarcely wider than the prothorax, the base subtruncate, finely, narrowly, and very shallowly
punctate-striate, the striz: more or less interrupted, the interstices flat and very closely and finely punc-
tured; legs robust. Beneath slightly shining, the ventral surface finely and sparingly muricate-punctate ;
intercoxal process narrow, the apex rounded.

Length 5-53 millim. (¢ 92.)

Hab. Mexico (coll. F. Bates, Sallé ex coll. Sturm), Yolos, Puebla, Guanajuato,

Capulalpam (Sal/é), Tehuacan, Oaxaca (Hége); GuaTEMa.a, near the city (Salvin), El

Jicaro (Champion).

Not uncommon in Mexico. Allied to C. seriatus, Lec., from the Colorado Desert,
but larger, the thorax more distinctly margined at the sides, the elytra differently
sculptured, and the legs stouter. Specimens occasionally occur with the suture reddish,
or entirely reddish-brown in colour.

ULUS.
Ulus, Horn, Rev. Ten. N. A. p. 358; Lec. & Horn, Class. Col. N. A. p. 879 (1883).
Two species of this genus have been recorded from California; others are found in
Central America, the genus ranging as far south as Panama. The different species are
found beneath stones, both on the coast and inland.

1. Ulus hirsutus. (Tab. VI. fig. 13.)

Ovate, convex, brownish black, with an neous tinge, densely clothed with rather coarse cinereous, golden, or
brownish recumbent hairs. Head very closely, rather coarsely, and almost confluently punctured ; pro-
thorax broadest at the base, feebly rounded at the sides, narrowing anteriorly, strongly transverse in the

134 HETEROMERA.

female, narrower in the male, punctured like the head, the angles prominent, the base with an oblique
shallow impression on each side about the middle ; elytra closely and rather coarsely punctate-striate, the
strie deeply impressed, the interstices closely and irregularly wrinkled (transversely) and punctured ;
outer apical angle of the anterior tibiee produced into a strong blunt tooth; intermediate and posterior
tibiee coarsely roughened and setose.
Length 6-7 millim. (¢ 9.)
Hab. Mexico, Ventanas, Presidio (Forrer), Cordova (Sal/é), Tehuacan, Jalapa (Hége),
Yucatan (coll. F. Bates); Guatemata, San Gerénimo (Champion); Panama, San Feliz,
Bugaba (Champion), Obispo (Salvin). :

Allied to U. obliquus, Horn, from Cape San Lucas, the thorax formed as in that
species, and differing as follows:—The upper surface closely but less regularly clothed
with rather coarser and browner pubescence, the sides of the thorax less thickly
pubescent, the striz more deeply impressed, and the punctures coarser. In the male
the thorax is narrower and less transverse than in the female; fresh examples are
densely clothed with brownish or golden, short, recumbent hairs.

In some examples the interstices of the elytra are distinctly wrinkled transversely,
and more closely punctured than in others.

2. Ulus lineatulus. (Tab. VI. fig. 14.)

Broad ovate, convex, brownish black, sparingly clothed with rather fine cinereous pubescence. Head rather
closely and coarsely punctured ; prothorax widest at and narrowing from the base forwards, scarcely
rounded at the sides, not very convex, closely and rather coarsely but not confluently punctured, the
punctuation a little finer and more scattered than upon the head ; elytra narrowing from about the middle,
somewhat pointed behind, closely punctate-striate, the: interstices very closely, finely, and irregularly
punctured and wrinkled, the pubescence on the alternate interstices lighter in colour towards the sides ;
anterior tibiz gradually widening to the apex, the outer edge scarcely emarginate before the apex ; inter-
mediate and posterior tibiee coarsely roughened and setose.

Length 63-7 millim. (¢ @.)

Hab. Guatemata, Champerico, Las Mercedes (Champion).

Common on the sea-coast at Champerico and also found inland. JU. lineatulus may
be known from U. obliquus and U. hirsutus by the more distant and finer punctuation
of the less convex but similarly formed thorax, the elytra more pointed behind, the
upper surface more finely and sparingly pubescent.

The following genus is of uncertain position :—

PENICHRUS.
Penichrus, De}. Cat. 3rd edit. p. 231.

Mentum small, narrow, trapeziform, inflexed on each side anteriorly, the anterior angles indistinct; last joint.
of the maxillary palpi triangular ; antenne very stout from the base, long, passing the base of the pro-
thorax, third joint short and not equalling the united first and second, the joints from the third decreasing
in length and widening outwardly, eighth to tenth broad and transverse, eleventh very large, and almost
equalling the united ninth and tenth, finely and sparingly setose (in our species), or with shorter and
coarser projecting sete (P. nanus, Dej.); head long (the front especially), broad in front and scarcely
narrowing anteriorly, not deeply sunk into the prothorax; the epistoma broadly but feebly emarginate,

PENICHRUS.—TRICHOTON. 135

confounded with the front ; the lateral margins of the front (antennary orbits) swollen, slightly divergent,
scarcely impinging on the eyes behind; eyes prominent, lateral, coarsely granulated, distant, transverse
oval, almost entire; labrum prominent, transverse ; prothorax subquadrangular, distinctly margined,
much narrower than the elytra; scutellum small, narrow; elytra more than twice as long as the pro-
thorax, convex, the base nearly straight, the humeri rounded, somewhat rounded at the sides, widest
behind the middle, then narrowed to the apex, regularly crenate-striate, the interstices feebly convex, the
epipleure narrowing gradually from the base and scarcely reaching the apex; legs much as in Blapstinus,
smooth ; tarsi clothed with fine silky hairs beneath, the fourth joint of the anterior and intermediate
pairs small, the anterior pair in the male dilated and clothed with spongy hair beneath ; prosternum
narrow, deflexed behind ; intercoxal process broad, rounded in front; middle coxal cavities almost closed,
trochantin scarcely visible; in the male the first and second ventral segments flattened and longitudinally
excavate, and the last segment slightly flattened, in the middle. Form of Blapstinus. Winged.

The above characters have been drawn up to receive the undescribed Penichrus nanus,
Dej., from Colombia and Brazil, and a closely allied species from the State of Panama.

In spite of the differently-formed head, &c., this genus seems to me to be nearly allied
to the “ Pedinides” ; in the male the anterior tarsi are distinctly dilated and spongy
beneath, and the ventral surface is longitudinally excavate in the middle, as in certain
Blapstinus, to a small species of which Penichrus bears considerable resemblance.

1. Penichrus blapstinoides. (Tab. VI. fig. 23, ¢.)

Oblong ovate, convex, reddish brown or black, with a distinct eeneous or brassy tinge, slightly shining, sparingly
clothed with fine short cinereous pubescence. Head finely and closely punctured; prothorax rather
broader than long, the sides rounded before the middle and straight and slightly narrowing behind,
widest before the middle, the apex nearly straight, the base feebly bisinuate and with a shallow oblique
fovea on each side about the middle, anterior angles obtuse, hind angles rectangular, the disc slightly
impressed before the base, finely, closely, and equally punctured; elytra much wider than the prothorax,
regularly crenate-striate from base to apex, the interstices convex, exceedingly finely and closely punc-
tured ; legs reddish brown, the femora darker. Beneath closely and rather finely punctured.

Length 4 millim. (¢ 2.)

Had. Panama, near the city, David (Champion).

Four examples beaten from the flowers of a large tree.

Group HOPATRIDES,

This group is represented in our country by two genera only; exceedingly few
genera or species of Hopatrides are found in the New World.

TRICHOTON.

Tyrichoton, Hope, Coleopt. Manual, iii. p. 111; Lacord. Gen. Col. v. p. 275.
Epilasium, Blanchard, Hist. Nat. Ins. ii. p. 14; Dej. Cat. 3rd edit. p. 214.

Two or three species of this genus are known from South America, and one has been
described from the island of Guam ; Blapstinus sordidus, Lec., from Arizona, is possibly
referable to it. Two species, both apparently undescribed, are found in Central America.

136 HETEROMERA.

1. Trichoton lapidicola.
Trichoton lapidicola, Haag in litt.

Broad ovate, dull black, clothed with coarse light brown or ferruginous appressed scale-like hairs, and the upper
surface also with scattered suberect short stout bristly hairs. Head rather coarsely but not very closely
punctured ; prothorax irregularly, sparingly, and rather closely punctured (more closely towards the base),
the anterior half of the disc smoother, somewhat densely clothed with scales towards the sides, the dise from
base to apex more or less bare; elytra rounded at the sides, regularly and closely punctate-striate, the
punctures coarse and transverse, the interstices smooth or feebly wrinkled, convex from the third outwardly
(the third, fifth, and seventh more distinctly raised and broader), the pubescence arranged in scattered
tufts ; anterior tibie in the male stout, gradually widening outwardly, inwardly curved from the middle,
and obliquely truncated at the apex.

Length 7-74 millim. (<¢.)

Hab. Nicaragua, Granada (Sallé), Chontales (Belt)—Soutn America, Venezuela
(coll. F. Bates).

Single examples only from each locality.

2. Trichoton curvipes. (Tab. VI. fig. 25, 2.)

Narrower and more parallel in form than TZ. lapidicola, not so dull, slightly shining (when the scales are
removed); the prothorax more closely punctured, the expanded lateral margins rather less concave
(especially anteriorly) within ; the elytra longer and narrower and more parallel, the upper surface (in
addition to the usual scale-like pubescence) more thickly clothed with suberect short ferruginous bristly
hairs ; the anterior tibia in the male thin, slightly widening outwardly, abruptly twisted and inwardly
curved before the apex, and the intermediate and posterior tibice in the same sex slightly widened, curved,
and produced at their inner apices, before which very narrowly emarginate.

Length 7-74 millim. (¢ @.)

Hab. Panama, near the city (J. J. Walker).

Three examples differing as above.

CNEMEPLATIA.
Cnemeplatia, Costa, Ann. degl. aspir. Nat. ser. 2, 1. p. 146 (1847) ; Horn, Rev. Ten. N. A. p. 360;
Lec. & Horn, Class. Col. N. A. p. 380.
Autocera, Wollaston, Cat. Col. Madeira, p. 154, t. 1. figg. 2, af; Lacord. Gen. Col. v. p. 280.

Two or three species of this minute but interesting and widely distributed genus
have been described from the Mediterranean region, one from Madeira, and one from
California; we have to add yet another species from the State of Panama. An allied
genus devoid of eyes (A/audes, Horn) is found in California.

1. Cnemeplatia laticollis. (Tab. VI. fig. 24.)

Elongate oval, subparallel, feebly convex, somewhat depressed above, pitchy or dark reddish brown, clothed
with yellowish brown silky appressed scale-like pubescence. Head very broad, short, feebly emarginate in
front, base almost truncate and extending (very narrowly) on each side as far as the small and not very pro-
minent eyes, with a curved oblique impressed line (starting from the inner upper margin of the eyes, and
extending forwards, but not reaching the middle) on each side, closely and finely punctured ; prothorax
strongly transverse, the base and apex feebly bisinuate, the sides feebly rounded and slightly narrower at

CNEMEPLATIA.—CRYPTICUS. 137

the base than in front, anterior angles obtuse, hind angles subrectangular, the base with a shallow rounded
impression in the middle before the scutellum, closely and finely punctured, covered with smooth silky
scale-like pubescence (paler towards the sides and base, the disc darker anteriorly) ; elytra about as wide as
the thorax, broadly but feebly emarginate at the base, somewhat coarsely, closely, and regularly punctate-
striate, the interstices flat, densely clothed with scale-like pubescence, in fresh examples the base and the

alternate interstices paler; spurs of the anterior tibix long and subequal; winged.
Length 3 millim.

Hab. Panama, San Feliz, Bugaba (Champion).

Three examples, all of which were captured on the wing towards sunset.
C. laticollis may be known from the described species of the genus by the compara-
tively shorter and broader head and thorax, the small eyes, and the flat interstices of

the elytra, &c.; the spurs of the anterior tibize long and subequal. This is one of the
smallest known species of the group. |

Group CRYPTICIDES.
This group will contain one genus (Cryptieus) only.

CRYPTICUS.

Crypticus, Latreille, Régne Anim. Ist edit. ii. p. 298 (1817); Lacord. Gen. Col. v. p. 223; Horn,
Rey. Ten. of Am. north of Mexico, p. 362; Lec. & Horn, Class. Col. N. A. 1883, p. 380.

A very widely distributed genus; species are found in Europe (including England),
the Canary Islands, South Africa, the Atlantic region of North America, South
America, &c.; we now add four, all of small size, from Central America. The
different species are found in hot, dry, arid places at the roots of grass, &c., both
inland and on the coast.

1. Crypticus ovatus.

Ovate, convex, black, with a slight ewneous tinge, shining, glabrous. Head closely and very finely punctured ;
prothorax finely and more sparingly punctured; elytra the width of the prothorax at the base, similarly
punctured, and with traces of fine obsolete striae; antennee (the two basal joints excepted) black; legs
reddish brown ; prosternum narrow, horizontal, the apex produced.

Length 3-33 millim. (¢ 9.)

Had. Guatemaua, Champerico (Champion).
Common at roots of grass &c. on the sea-coast at Champerico. A small, shining,

black species of regularly elliptic outline; the thorax equally rounded and narrowed
with the elytra; shorter and more convex than the North-American C. odsoletus,

Say.

2. Crypticus mexicanus.
Ovate, rather broad, black, shining. Head closely and very finely punctured ; prothorax exceedingly finely

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, April 1886. ry

138 HETEROMERA.

and sparingly punctured; elytra finely and regularly punctate-striate, the strie more distinct towards the
suture, the interstices punctured like the prothorax.
Length 4 millim.

Hab. Mexico, Jalapa (Hége).

One example. Larger, broader, and smoother than C. ovatus, the elytra finely
punctate-striate, the interstices almost smooth; allied undescribed forms are known
from South America.

3. Crypticus aterrimus.

Crypticus aterrimus, De}. Cat. 3rd edit. p. 215°.

Regularly ovate, convex, opaque, dull black. Head exceedingly finely and sparingly punctured; prothorax
transverse, rounded at the sides, narrowing from the base, the surface (and that of the elytra also)
apparently impunctate (if viewed with a strong lens, some minute scattered punctures are visible), dull
and opaque ; elytra the width of the prothorax at the base, rounded at the sides, narrowing from the base ;
legs piceous, the knees and tarsi sometimes reddish testaceous; antenne piceous.

Length 4 millim. (¢ 9.)

Hab. Mexico, without locality (Hége) ; British Honpuras, R. Hondo (Blancaneauz) ;

GuaremaLa, La Tinta in the Polochic valley (Champion); Panama, Volcan de Chi-

riqui (Champion).—Gutana, Cayenne } (coll. '. Bates).

A perfectly ovate, small, and convex species; the upper surface dull and opaque;
the prothorax in the female rather narrower in front, the general outline in consequence

more elliptic than in the male.

4, Crypticus maculatus. (Tab..VII. fig. 1.)

Ovate, reddish brown or black, with a slight eneous tinge, shining. Head closely and finely, the prothorax
rather more sparingly and finely, punctured ; elytra punctured like the prothorax, with indistinct traces of
obsolete striz, and maculated with testaceous—a broad oblique band starting from the shoulder and
extending about halfway towards the suture (not reaching beyond the middle), and a broad curved band
at the apex (this starting transversely from the margin turns abruptly before reaching the suture, and
extends almost parallel with it to the apex); the antenne at the base and the legs testaceous, sometimes

slightiy darker.
Length 3-33 millim. (¢ 2.)

Hab. Guatemata, Yzabal (Sallé); Nicaracua, Granada (Saldé), Chontales (Janson).

Four examples. A specimen from Yzabal is figured.

Group PHRENAPATIDES.

This group contains Phrenapates, Delognatha, and a new genus described here,
and probably also Pycnochilus, Waterh., from Madagascar. Delognatha has not yet
been received from our country; one or two species, however, are known from
Colombia. | | ;

PHRENAPATES.—DAOCHUS. 139

PHRENAPATES.

Phrenapates, Kirby, Faun. Bor. Am. iv. p. 188 (1837); Gray in Griffith’s Anim. Kingdom, p. 91,
t. 50. fig. 1, & t. 69. figg. la-lm; Castelnau, Hist. Nat. ii. p. 217; Imhoff, Versuch ein.
Einfiihr. in d. Stud. d. Col. p. 234; Lacordaire, Gen. Col. v. p. 313.

Phrepates, Solier, Ann. Soc. Ent. Fr. 1834, p. 488.

This remarkable genus contains two closely allied species of large size, both inhabiting
Colombia; one of these we now trace as far north as Guatemala. Phrenapates bears a
certain superficial resemblance to Passalus, and was indeed considered by its describer
to be closely related to that genus; it is of similar habits, and often found in company
with species of that genus.

1. Phrenapates bennetti.
Phrenapates bennettii, Kirby, loc. cit.'; Gray, loc. cit.”; Cast. loc. cit.?; Lac. loc. cit.'

Hab. GuatEMALA, Coban (Champion); Nicaraaua, Chontales (Belt, Janson); Costa
Rica (Van Patten), Irazu (Rogers); Panama, Bugaba, Volcan de Chiriqui to 4000 feet
(Champion).—CotomBia* 4, Choco 12, Bogota (coll. F. Bates).

This species is closely allied to P. latreillei, and differs solely from that species in the
shape of the ligula and mentum; it varies considerably in size, and also in the presence
or absence of wrinkles upon the head; some of the Nicaraguan specimens are no larger
than P. latreillet. I met with P. bennett in plenty in decaying timber in the humid
forest region of Chiriqui, and frequently dug it out of cylindrical burrows, probably
made by the larvee, in the solid wood.

DAOCHUS.

Mentum transverse, the sides deflexed and deeply concave within, the anterior angles rounded; antennary
orbits not swollen, broadly, but feebly, emarginate; ligula strongly exserted, very large and prominent,
rounded in front, and with a deep rounded excavation (separated by a strong longitudinal carina) on
each side, and into which the labial palpi are inserted; inner lobe of the maxille armed on the inner
side, and the outer lobe at the apex, with long coarse sete ; last joint of the maxillary, and also that of
the labial, palpi elongate ovate, rounded at the apex; mandibles long, stout, exserted, deeply cleft at the
apex, concave within at the base above (for the reception of the prominent labrum, which is rounded in
front) ; antenne perfoliate, short (not reaching to the middle of the prothorax), the basal joint stout, the
third short and scarcely as long as the united fourth and fifth, the fourth to the eighth transverse, and
gradually widening outwardly, the ninth and tenth suddenly wider, strongly transverse, and forming with
the eleventh (which is nearly as long as the united ninth and tenth, and rounded at the apex) a distinct
3-jointed club, the last three or four joints setose ; head very broad, angularly extended on each side, not
deeply sunk into the prothorax; epistoma confounded with the front, the anterior portion abruptly
declivous, broadly, but not deeply, emarginate; antennary orbits not swollen, broadly but feebly
emarginate ; eyes rather small, inserted at the extremity of the lateral angular extension of the sides
of the head, rounded, distant from the thorax, the inferior portion small, very feebly emarginate in front ;
prothorax strongly transverse, transversely convex, the sides and base strongly margined, the basal half
of the former crenulate; scutellum very minute, almost obsolete; elytra very short and convex, scarcely
one and a half times the length of the prothorax, truncate at the base, very coarsely and deeply punctate-
striate (the stria next the suture extending in a straight line direct to the base, the scutellar stria

TT 2

140 HETEROMERA.

obsolete), the humeri prominent (formed by the extended margin); anterior tibie coarsely, the inter-
mediate ones more finely, denticulate on their outer edge; outer apical angles of all the tibie produced and
dentiform, the spurs strong; tarsi short, the basal joint of the posterior pair stout and a little longer than
the two following joints united, the last joint thin and about as long as the first ; prosternum broad,
subhorizontal, the apex a little produced and rounded; metasternum short; intercoxal process broad,
rounded in front; epipleurse broad, and extending to the apex of thé elytra.

The above characters have been drawn up to receive a single species from British
Honduras.

From Delognatha, Lac., of which several species have been described from Tropical
South America, this genus may be known by its much shorter and more convex form,
the lateral margins of the front not swollen, the almost obsolete scutellum, the more
prominent humeri, the comparatively much shorter elytra, &c.; allied also, but more
distantly, to Pycnochilus, Waterh.

The sexes appear to be externally similar as in Phrenapates.

1. Daochus mandibularis. (Tab. VII. fig. 2; 2a, labium; 26, maxilla and

maxillary palpus.)

Oblong ovate, broad, very convex, reddish brown or black, shining. Head and labrum coarsely and closely
punctured; prothorax strongly transverse, the anterior angles produced and prominent, but obtuse,
widest about the middle, narrowing a little at the base, the base truncate (without fovez), the surface
very coarsely and somewhat closely punctured (rather more sparingly than the head), the space between
the punctures (seen under a strong lens) exceedingly minutely and closely punctured ; elytra the width of
the prothorax at the base, very short and convex, slightly rounded at the sides, widest about the middle, very
coarsely and deeply punctate-striate (the punctures transverse and closely placed), the interstices becoming
strongly convex outwardly, and almost smooth ; beneath shining, coarsely and rather closely punctured.

Length 6—7 millim.

Hab. British Honpuras, R. Sarstoon (Blancaneauz).

Two examples.
Group ULOMIDES.

This group will contain a large number of genera, many of which will doubtless
eventually have to be separated, but for the purposes of this work I have not thought
it necessary to divide it. As understood here, it will include the genera placed in it
by Lacordaire, except Anepsius, and those from Hypophleus onwards; and also those
included in it by Leconte and Horn (Class. Coll. N. A. 1883, p. 381), with the exception
of Evoplus, which is here referred to the group “ Diaperides,” to which group Hypophleus
is also now considered to belong. I have also included in it Sitophagus and Doliema
(=Sitophagus, Horn), which seems to me to be more nearly allied to the “ Ulomides,”
notwithstanding the differences in the structure of the male antennez and the slightly
gaping middle coxal cavities (the small trochantin in consequence slightly visible, as is
also the case in Mophis), than to the “ Tenebrionides,” with which Doliema is associated
by Dr. Horn: possibly they wiil form the types of a new group.

For the reception of the numerous Central-American species many new genera have

PENETA. | 141

been required ; several of these contain one or two species only, as is also the case with
others inhabiting North America.

Taken as a whole, the species of this group are, in spite of their usually sombre
colours, interesting on account of the exceedingly good characters afforded by the males
of many species, characters often of generic value: in some genera, Uloma, Uleda, and
Pheres, the anterior (and sometimes the intermediate) tibiz are more or less sinuous and
dilated, and often coarsely denticulate on their outer edge, or armed on the inner side
or beneath with a sharp tooth; others, the well-known Gnathocerus and allies, Ulosonia,
Sitophagus, and Doliema, have the head armed with long (curved or horizontal) horns ;
these latter having the legs thin and similar in both sexes. Other genera, Telchis,
Peneta, Cleolaus, Arrhabeus, and Diedus, all containing species of small size, are very
convex; the antenne with a distinct 2- or 3-jointed club, the two front pairs of
tibiee coarsely denticulate on their outer edge (Diedus excepted), and the sexes (Peneta
excepted) externally similar; Peneta approaching Daochus of the preceding group,
but wanting the long exserted mandibles.

In the male of Antimachus the head is armed with a long and erect horn (broadly
dilated and bifurcate at the apex), the anterior angles of the thorax produced into a long,
horizontal, tooth-like projection, and the anterior tibie (though smooth on their outer
edge in both sexes) triangularly extended on their inner side in the middle. In Alegoria
the penultimate joint of the tarsi is distinctly sub-bilobed. Mophis and Asymnus approach
the ‘‘ Diaperides ;” in the males of one or two species of Sitophagus and Doliema the
antenne are long, and with the joints subtriangular, but in the same sex of other new
species described here these organs are normal, and resemble those of the females.

Some of the species are perfectly flat (Doliema), others cylindrical (Iccius, &c.); a
few (Gnathocerus and allies, Doliema frontalis, and Sitophagus dilatifrons) have the
head expanded and foliaceous anteriorly in the male; some have a very broad and
deep transverse excavation on the anterior disc of the prothorax, ¢. g. in the male of
Antimachus, and of some species of Uloma, and probably in both sexes of Cleolaus
and Telchis.

The whole of the Central-American species are probably of subcortical habits; one
or two have apparently taken subsequently to a different mode of life, having been
(like other species now rapidly becoming cosmopolitan) found in bad flour.

PENETA.
Peneta, sect. (1) A, Lacordaire, Gen. Col. v. p. 319, nota (1859).

I here retain the generic name Peneta solely for the P. lebasit group as defined by
Lacordaire. The other species, notably P. sommeri, differ in so many important
structural characters, as pointed out by Lacordaire, that I do not feel justified in
considering them congeneric. It is probable that, judging from examples of P. lebasit

142 HETEROMERA.

in Mr. F. Bates’s collection, the sexes in the P. lebasii group differ considerably in the
cephalic armature, and that the horns upon the vertex are strongly bifurcate in the
male, and subtriangular in the female. P. sommeri will form the type of a new genus,
Cleolaus.

By separating these species, the third group of Lacordaire (containing the South-
American P. taurus, Lac., P. goudotii, Lac., and P. cervus, F. Bates, which all have
enormously developed, erect, curved horns upon the head, a large scutellum, &c.) will
require a new name; it might be called Molion. |

P. lebasii is a native of Colombia; we now add an allied species from the State of
Panama.

1. Peneta panamensis. (Tab. VII. fig. 3; 3a, antenna.)

- Elongate ovate, very convex, subparallel, dark reddish brown, shining. Head with some scattered shallow
rather coarse punctures, the anterior margin very strongly raised and reflexed (ending immediately above
the eyes, and not extending along their inner margin), the vertex with a stout erect subtriangular longitu-
dinal elevation on each side (placed some distance behind and just within the eyes), extending obliquely
inwards in front to the anterior margin ; prothorax transverse, the anterior angles prominent but not
swollen, the hind angles obtuse and rounded, narrowing a little anteriorly, the sides straight from the
middle to the base, the surface with scattered rather coarse punctures (which are placed more closely along
the anterior margin); scutellum small, transverse; elytra very coarsely punctate-striate, the interstices
convex and almost smooth ; beneath shining, the sides of the metasternum and the ventral surface with
coarse scattered punctures; prosternum declivous behind, the apex not produced; metasternum deeply
canaliculate behind; antenne with a stout, loosely articulated 3-jointed club, the last joint ovate ;
epipleure extending to the apex of the elytra.

Length 63 millim. (9?)

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).
One example.
CLEOLAUS.
Peneta, sect. (1) B, Lacordaire, Gen. Col. v. p. 819, nota (1859).

This genus, as understood here, will contain a single species from Mexico.

1. Cleolaus sommeri. (Tab. VII. fig. 4.)

Peneta sommeri, Lac. loc. cit. p. 319, nota’.

Hab. Mexico! (Sal/é), Oaxaca (coll. F. Bates).

The head in this very short and broadly convex species is similarly formed in both
sexes, and sunk into the prothorax as far as the eyes, the scutellum almost obsolete,
the prothorax broadly and deeply transversely excavate anteriorly, and the epipleure
very broad almost to the apex.

TELCHIS.

Mentum trapeziform, strongly deflexed on either side, the anterior angles produced, deeply bisinuate in front ;
inner and outer lobes of the maxille armed with long coarse sete ; last joint of the maxillary palpi oblong

TELCHIS. 143

ovate ; mandibles extending a little beyond the prominent exserted labrum (which is separated from the
epistoma by a distinct clypeus), bifid at the apex; antenne short (reaching only to the first third of the
prothorax), perfoliate, the first and second joints stout, the second short, the third to the eighth very
short, strongly transverse, very closely articulated, and slightly widening outwardly, the ninth joint fully
twice the width of the eighth, the ninth to the eleventh forming a very large, loosely articulated club, the
Jomts of which are strongly and broadly produced on the inner side, the eleventh bluntly rounded at the
apex, the joints of the club (and the labrum) coarsely setose; head long, strongly exserted, the lateral
margins of the front slightly swollen, and extending triangularly forwards beyond the epistoma (which
1s broadly but not deeply emarginate in front), and not impinging on the eyes behind; eyes lateral, distant
from the prothorax, not very large, the superior portion rounded, the space between them armed with a
strong erect transverse prominence (which is distant from the eyes, extends forwards, and is abruptly
declivous in front, and covers in greater part the short epistoma); prothorax rather broader than long,
longitudinally convex, distinctly margined at the sides, the disc deeply excavated in the middle; scutellum
small, narrow; elytra rather wider than and closely embraced by the prothorax, about twice as long
as the prothorax, very convex, cylindrical, narrowly margined, regularly and coarsely punctate-striate
from the base, without scutellar stria, the interstices convex; legs much as in Daochus, the external
denticulation of the anterior tibia stronger (armed with two short and three long teeth), the teeth on the
intermediate tibie stronger, the apices of the posterior tibiz more produced ; tarsi very sparingly clothed
with hair beneath, the first joint of the posterior pair short and thin, the length of the two following
joints united ; epipleure narrow (slightly constricted in the middle), extending to the apex of the elytra;
prosternum rather broad, declivous behind; metasternum long, deeply impressed longitudinally behind ;
intercoxal process triangular. .

This genus will include a single species from the State of Panama. I have only seen
two examples: these are possibly male and female, as they were taken together, though
they have the head and thorax similarly formed; analogous cases are known in the
allied genera.

Telchis is perhaps best placed near Peneta, to which, however, it is not. very closely
allied; it may be known at once by the very large, loosely articulated 3-jointed club of
its antenne, cylindrical form, excavated thorax, and other characters given above.

1. Telchis clavicornis. (Tab. VII. fig. 5*; 5a, mentum; 56, maxilla and |

maxillary palpus; 5 ¢, antenna.)

Elongate ovate, subcylindrical, very convex, black, shining. Head coarsely and closely, the anterior face
of the transverse frontal elevation much more closely and finely, punctured; prothorax a little broader
than long, narrowing a little before and behind, the angles obtuse (the anterior ones slightly prominent,
but not produced), the base subtruncate, the disc broadly and very deeply excavate in the middle (the
excavation open in front, and bounded anteriorly by a sinuous transverse impression, sinuous at the sides),
with an elevated smooth longitudinal ridge from the centre of the excavation behind to the base, the
surface very coarsely, but not very closely, punctured; elytra subparallel, narrowing a little at the extreme
base, the humeri small but distinct, coarsely punctate-striate (the punctures transverse and closely placed),
the interstices strongly corivex, and sparingly and finely punctured ; beneath shining, coarsely punctured,
the metasternum and the ventral surface in the middle smoother.

Length 53-6 millim. (¢.)

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).
Two examples.

* In the figure given the thorax and elytra (especially the latter) are badly drawn; the whole insect is much

more elongate, and narrower.

144 HETEROMERA.

DIGZDUS.

Diedus, Leconte, Class. Col. N. A. p. 338 (1862); id. New Sp. Col. p. 181 (1866); Horn, Rev. Ten.
of Am. north of Mexico, p. 365; Lec. & Horn, Class. Col. N. A. p. 381.

A single species only of this genus is known; it inhabits the whole of North
America, according to Dr. Horn, and is found beneath pine bark. I include it in our

fauna somewhat doubtfully on the authority of a mutilated specimen captured by
myself in Guatemala.

1. Diedus punctatus ?
Diedus punctatus, Lec. loc. cit. p. 288°; id. New Sp. of Col. p. 131°; Horn, loc. cit. p. 365.

Hab. Nortu America, Atlantic States 1, Middle and Southern States ?.—? GUATEMALA,
Chilasco 6000 feet (Champion).

A single specimen (without antenne) from Guatemala is apparently referable to this
or an allied species; it differs from a type of D. punctatus contained in Mr. F. Bates’s
collection in being larger, the head not so closely and more coarsely punctured, and
not so deeply sunk into the prothorax.

ARRHABAUS.

Mentum trapeziform, deflexed at the sides, bisinuate in front, the anterior angles produced; lobes of
the maxille armed with coarse spiny sete; last joint of the maxillary palpi elongate ovate; ligula
strongly exserted, transverse, broadly rounded in front; mandibles projecting, slightly cleft at the apex,
clasping the prominent labrum (between which and the epistoma a dividing clypeus is to be seen in many
specimens), subangular on the other side; antenne short, reaching to about the middle of the prothorax,
the first joint stout, the second smaller, the third short, and scarcely longer, though narrower, than the
second, the fourth to the ninth transverse, and widening a little outwardly, the tenth twice the width of the
ninth, transverse, and forming with the eleventh a stout, loosely articulated 2-jointed club, the eleventh
twice as long as and the width of the tenth, broadly rounded at the apex; head short and broad, rather
deeply sunk into the prothorax, the lateral margins of the front swollen and raised (in the male more
strongly), not extending in front beyond the epistoma, nor beyond the inner upper margin of the eye
behind ; epistoma confounded with the front, short, concave within in the male, the anterior margin
broadly truncate; eyes lateral, rounded, a little distant from the prothorax; prothorax transversely
convex, the disc broadly impressed in front in both sexes, the anterior face abruptly declivous, distinctly
margined ; scutellum moderate; elytra alittle wider than and scarcely twice as long as the prothorax, very
convex, coarsely and regularly punctate-striate (the sutural stria continuing direct to the base), without
scuteilar stria, narrowly margined, the humeri distinct; anterior tibie armed on the outer edge with three
or four coarse teeth, the intermediate pair similarly armed, but with the teeth finer; outer apical angles of
all the tibis produced and dentiform, spurs strong; tarsi very sparingly clothed with hair beneath, first
joint of the posterior pair the length of the two following joints united ; prosternum horizontal, the apex
slightly produced and broadly rounded ; epipleurw broad, extending to the apex of the elytra.

This genus includes a single species from Costa Rica and the State of Panama.
Arrhabeus may be at once known from Diedus, which also has a 2-jointed club to the
antenne, by its much more convex form, coarsely denticulated tibiz, differently formed

thorax, &c.; it cannot be confounded with any other known genus.
The single species is found in the forest-region beneath bark.

ARRHABAUS.—ECHOUERUS. 145

1. Arrhabeus convexus. (Tab. VII. fig. 6; 6a, labium; 64, maxilla and

maxillary palpus; 6, antenna. )

Oblong ovate, very convex, dark reddish brown or black, shining. Head coarsely and rather closely punctured,
the front broadly but shallowly depressed (more deeply in the male), the lateral margins raised and swollen ;
prothorax broader than long, narrowing a little before and behind, the angles obtuse, widest about the
middle, the base broadly but feebly emarginate, the dise broadly concave in front (more deeply in the
male), very coarsely and rather closely punctured ; elytra coarsely punctate-striate, the interstices convex
and finely and sparingly punctured; beneath shining, the prothorax and the sides of the metasternum rather
coarsely, the latter in the middle and the ventral surface much more sparingly and finely, punctured. ”

Length 43-5 millim. (¢ 9.)

Hab. Costa Rica, Irazu, Cache ( Rogers); Panama, Volcan de Chiriqui, Bugaba

(Champion).

Many specimens. In well-developed males of this species the lateral margins of the
front are more raised ; the thorax broader, more strongly transversely convex, and the
disc more deeply excavate in front.

A specimen from Irazu is figured.

GNATHOCERUS.

_ Gnathocerus, Thunberg, Act. Holm. 1814, p. 47; Lacord. Gen. Col. v. p. 8322; Horn, Rev. Ten. of
Am. north of Mexico, p. 365.

This genus is now restricted to a cosmopolitan species found nearly all over the world,
and the native country of which is apparently unknown.

1. Gnathocerus cornutus*.
Trogosita cornuta, Fabr. Ent. Syst. Suppl. p. 51.
Hab. NortH America.—MeExico, Orizaba, Guanajuato (Sallé), Jalapa (Hoge); Gua-
TEMALA (Sal/é).—Europe &c.

An introduced species.

ECHOCERUS.

Echocerus, Horn, Rev. Ten. of Am. north of Mexico, p. 366 (1870) ; Lec. & Horn, Class. Col. N. A.
p. 381.

This is a genus founded by Dr. Horn upon a single species introduced into the United
States; it is probably a native of South America, and perhaps also of our country, from
whence we now add a second species. I have retained Echocerus as distinct from Gna-
thocerus, but I very much doubt whether it can be maintained, the second species now
described being in some respects intermediate, though agreeing best with the former.

* T have not thought it necessary to give full synonymy for this and the other introduced species which do

not really belong to our fauna.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, Aprid 1886. UU

146 HETEROMERA.

1. Echocerus maxillosus.

Trogosita maxillosa, Fabr. Syst. Eleuth. i. p. 155°.

Trogosita mavillaris, Beauv. Ins. d’ Afr. & Amer. p. 125, t. 32. f. 4”.

Gnathocerus mazillosus, Lacord. Gen. Col. v. p. 822, nota®; Wollast. Ann. & Mag. Nat. Hist. 3rd
ser. vi. p. 49 (1860) *; Col. Atlant. App. p. 61°.

Echocerus maxillosus, Horn, loc. cit.*

Hab. NortH America ®—Mexico, Guanajuato (Sal/é) ; GuareMaLa, Paraiso (Cham-
pion); Nicaragua, Chontales (Belt)—Conompia?: Sour Americal*?; ANTILLES? ;
Mapverra*®; Canary Isianps.

This is another species now becoming introduced, through the medium of commerce,

into various parts of the world.

2. Echocerus analis. (Tab. VII. fig. 7, 3.)

Elongate ovate, subparallel, convex, black, shining. Antenne stout, the joints from the fourth becoming
strongly transverse, the last joint broad and rounded at the apex. Head rather broad, deeply sunk into
the prothorax, with a few fine scattered punctures, almost smooth, shining ; in the male the lateral mar-
gins of the front (antennary orbits) extended and foliaceous, reaching more than halfway across the eyes
(as in Gnathocerus), and rounded externally (as in Echocerus), and the mandibles.armed above with a long,
suberect, sickle-shaped incurved horn (as in Echocerus), and the space between the eyes transversely raised
(almost touching the anterior margin of the prothorax) and armed with two rounded tubercles; prothorax
scarcely broader than long, the sides almost straight, scarcely narrower at the base, feebly sinuate behind,
the anterior angles obtuse and rounded, the hind angles subrectangular, the base closely embracing the
elytra, and with a distinct and rather deeply impressed oblique fovea on each side, the surface closely and
rather coarsely punctured ; elytra the width of the prothorax at the base, the sides almost parallel to beyond
the middle, regularly and rather coarsely punctate-striate, the interstices closely and very finely punctured,
the apical third red ; epipleuree not reaching the apex of the elytra; head in front, the mandibles, the
antennee, and legs, red ; the first joint of the posterior tarsi short, about the length of the two following
joints united.

Length 4 millim. (<.)

Hab. GuateMata, San Gerénimo (Champion).

One example, found under bark.

SICINUS.

Form of Echocerus ; in the male the mandibles armed above with a broad, recurved, suberect horn (broad at the
base, diverging and truncate at the apex in S. guatemalensis, feebly converging and pointed at the apex in
S. brevipes), the lateral margins of the front extended and foliaceous and reaching behind about halfway
across the eyes, and the space between the eyes armed with two large tubercles (in the female with small
rounded prominences); antenns as in Echocerus, the penultimate joints strongly transverse, the apical
joint short and broad, and rounded at the apex ; legs short, the femora gradually narrowed to the apex (not
swollen at the inner apical angle as in Gnathocerus) ; first joint of the posterior tarsi about as long as the
two following joints united ; epipleure not reaching the apex of the elytra.

I place two small species from Central America in this genus, which, as we have
retained Hchocerus as generically distinct from Gnathocerus, it has also become neces-
sary to separate. One of these species was captured at light, in company with other

SICINUS.—ICCIUS. 147

peculiar and rare forms of Hydradephaga and Pselaphidea never met with by me
elsewhere.

The comparatively short legs and -peculiar cephalic armature of the male render
this genus easy of recognition.

1. Sicinus guatemalensis. (Tab. VII. fig. 10, ¢; 104, side view of head.)

Elongate ovate, subparallel, moderately convex, reddish ferruginous (sometimes slightly stained with piceous),
shining. Head distinctly and rather closely punctured; in the male the lateral margins of the front
broadly extended and foliaceous (deeply concave within), the mandibles armed on the upper side with a
broad suberect horn (broad at the base, and abruptly emarginate just before the apices, which diverge
and are narrowly truncate), the space between the eyes armed with two very large transverse rounded
prominences; in the female more evidently punctured, the sides of the front very slightly foliaceous,
and with two feeble rounded prominences between the eyes; prothorax transverse, the sides almost
straight, feebly sinuate before the base, the base and apex subtruncate, the anterior angles obtuse, the hind
angles subrectangular, the base with a feeble oblique fovea on each side, the surface closely and rather
coarsely punctured ; elytra the width of the prothorax at the base, regularly punctate-striate, the inter-
stices closely and somewhat coarsely punctured.

Length 3 millim. (¢ 92.)
Hab. GuateMata, Paraiso, El Reposo (Champion).

Three examples.

2. Sicinus brevipes.

Closely allied to S, guatemalensis ; the mandibles in the male armed above with a recurved erect horn (broad
towards the base, slightly converging and incurved at the apices, which are pointed), the lateral margins
of the front extended and foliaceous (not so strongly as in S. guatemalensis, and more rounded), the space
between the eyes armed with two very prominent transverse triangular prominences ; prothorax and elytra
as in S. guatemalensis.

Length 3 millim. (<¢.)

Hab. Guatemata, Zapote (Champion).

One example.

ICCIUS.

Mentum small, trapeziform ; antenne perfoliate, the third joint short (shorter than the first and second together),
the fourth about as long as the second, the fifth to the tenth gradually widening and transverse, the eleventh
large, broad, ovate, rounded at the apex ; apical joint of the maxillary palpi ovate, obliquely truncate at the
apex; head broad, in the male the lateral margins of the front (antennary orbits) extended and more or
less foliaceous (very feebly in I. cylindricus), the space between the eyes armed with one or two stout erect
tubercles, and the mandibles armed above with a long, suberect, sickle-shaped horn; prothorax trans-
versely convex and narrowly margined (J. cephalotes), or longer than broad, cylindrical, and indistinctly
margined (J. cylindricus), without indication of basal fovese; elytra elongate, subparallel, and regularly
punctate-striate (I. cephalotes), or cylindrical and irregularly punctate-striate (I. cylindricus); epipleure
not reaching the apex of the elytra; anterior tibie slightly sinuous, denticulate on their outer edge ; first
joint of the posterior tarsi short, about as long as the two following joints united; prosternum narrow,
slightly produced at the apex ; metasternum long, longitudinally canaliculate behind ; intercoxal process

triangular. Form elongate or cylindrical.
UU 2

148 HETEROMERA.

This genus includes two Central-American species, one of which (J. cephalotes) is
not at all uncommon in Mexico and Guatemala. Jccius may be readily recognized from
Echocerus, its nearest ally, by its elongate or cylindrical form, and the denticulate
anterior tibie, as well as by the characters given above. Both species are found under
bark.

1. Iccius cephalotes. (Tab. VII. fig. 8, ¢; 84, side view of head.)

Elongate ovate, subparallel, strongly convex, colour varying from dark reddish ferruginous to black, shining.
Head coarsely and closely punctured, the epistoma smoother ; in the male the lateral margins of the front
broadly and subangularly extended and foliaceous (scarcely reaching halfway across the eyes and not project-
ing beyond them), the mandibles armed above with a long, erect, sickle-shaped horn, and the space between
the eyes with two stout, suberect tubercles (placed close together and distant from the eyes); in the female
the sides of the front slightly swollen and reflexed ; prothorax broader than long, transversely convex, the
angles obtuse and rounded, widest about the middle, rounded at the sides, the base subtruncate, coarsely,
closely, and equally punctured ; elytra long (more than twice as long as the prothorax), about as wide as
the prothorax at the base, convex, subparallel to beyond the middle, regularly punctate-striate, the inter-
stices flat; and somewhat coarsely and closely punctured, the humeri obtuse, colour varying from reddish
ferruginous to black, sometimes black with the base or suture reddish, sometimes reddish ferruginous with
the suture broadly darker; head and prothorax beneath coarsely and closely, the metasternum and ventral
segments more sparingly, punctured.

Length 33-4 millim. (¢ 2.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hoge); GuatEMALA, Cerro Zunil, Las Mercedes,
Capetillo (Champion). |

Many specimens. Poorly developed males of this species have the horns and
tubercles shorter ; the foliaceous lateral margin of the head less extended, rounded, and
not subangulate externally. We figure a well-developed male from Las Mercedes.

2. Iccius cylindricus. (Tab. VII. fig. 9, ¢ ; 94, side view of head.)

Very long and narrow, cylindrical, black, shining. Head very closely and rugulosely, the epistoma more
sparingly, punctured, the epistoma weil defined posteriorly by a deep transverse impression (in the centre
of which, in the male, is a deep fovea), the lateral margins of the front swollen and feebly foliaceous (not

‘ extending so far outwardly as the eyes, and only slightly impinging on them), the mandibles armed above
with a long, suberect, sickle-shaped horn, and the space between the eyes with a strong, slightly curved,
suberect tubercle in the middle; prothorax cylindrical, longer than broad, very feebly margined at the
sides, the base truncate, the sides almost straight, the angles obtuse, coarsely and closely punctured ; elytra
about twice as long, and of the same width, as the prothorax, parallel nearly to the apex, not closely
embracing the prothorax, the humeri rounded, irregularly and shallowly punctate-striate, the striz inter-
rupted and more or less confounded with the almost equally coarsely punctured flat interstices ; the three
basal and the apical joints of the antenne, the palpi, the front of the head, the mandibles and
appendages, the basal half of the elytra (the suture excepted), and the legs, reddish testaceous or fer-
ruginous.

Length 3 millim. (3 @.)

Hab. Guatemata, San Gerénimo (Champion).

Two examples only of this very distinct species were obtained.

TRIBOLIUM.—ALEGORLIA. 149

TRIBOLIUM.

Tribolium, MacLeay, Annal. Jay. 1825, p. 47; Lacord. Gen. Col. v. p. 323; Horn, Rev. Ten. of
Am. north of Mexico, p. 365.

A cosmopolitan genus, two or three species of which are found in almost all parts
of the world. Two species are found in our country, both, doubtless, introduced.
Another species (7. madens, Charp.) is found abundantly in North America wherever
grain is stored, according to Dr. Hom; I have not seen it from our country.

1. Tribolium ferrugineum.
Trogosita ferruginea, Fabr. Spec. Ins. i. p. 324 (1781).
Hab. Mxxico, Guajuco in Nuevo Leon, San Pedro in Coahuila (Dr. Palmer), Oaxaca,
Tuxtla (Sallé); Guatemata (Sallé), San Gerénimo (Champion); Panama, Volcan de
Chiriqui, Caldera, David (Champion).—Evrorr &c.

2. Tribolium confusum.
Tribolium confusum, Jacq. Duval, Gen. Col. Eur. Cat. 1868, p- 181, nota.
Hab. Mexico, Guajuco in Nuevo Leon, San Pedro in Coahuila (Dr. Palmer),
Guanajuato (Sallé).— Europe; Japan.

ALEGORIA.
Alegoria, Castelnau, Hist. Nat. ii. p. 221 (1840) ; Lacordaire, Gen. Col. v. p. 325; F. Bates, Ent.
Monthly Mag. ix. p. 182.
Allegoria, Gemm. & Har. Cat. vii. p. 1959.
Hylonoma, De}. Cat. 3rd edit. p. 221.

Four species have been described of this New-World genus; others, undescribed as
yet, exist in collections. In Alegoriathe penultimate joint of the tarsi is very distinctly
sub-bilobed. The different species are found beneath bark in forest districts; the genus
ranging from Mexico to Parana. |

1. Alegoria sallzi. (Tab. VII. fig. 11, ¢.)
Alegoria sallei, F. Bates, Ent. Monthly Mag. ix. p. 181’.

Hab. Mexico! (coll. F. Bates), Tehuantepec (Sailé).

2. Alegoria dilatata.
Alegoria dilatata, Cast. Hist. Nat. ii. p. 221 (1850)"; F. Bates, Ent. Monthly Mag. ix. p. 182

(foot-note).
Hylonoma sinuatocollis, De}. Cat. 3rd edit. p. 221.

Hab. Muxico (coll. F. Bates) ; GUATEMALA (Mus. Stuttgart), San Juan in Vera Paz

150 HETEROMERA.

(Champion); Nicaraeua, Chontales (Belt); Panama (coll. F. Bates), Bugaba, David
(Champion), Taboga Island (J. J. Walker) —Co.ompta, Bogota; GUIANA, Cayenne! ;
BraziIt; Perv.

A widely-distributed species.

PHERES.

Mentum transversely oval, pilose in the male ; ligula emarginate in front ; maxillary palpi stout, the last joint
securiform ; maxillze coarsely setose, the inner lobe armed at the apex with a distinct tooth ; labrum pro-
minent ; antenne perfoliate, long (almost reaching to the base of the prothorax), the third joint not quite
twice the length of the second, the third to the sixth ovate and shortening a little in length, widening out-
wardly from the seventh joint, the ninth and tenth broader than long, the eleventh large (nearly twice as
long as the tenth) and rounded at the apex; head not very deeply sunk into the prothorax ; epistoma
short, broadly but feebly rounded in front in a line with the lateral margins, which are not swollen; eyes.
strongly transverse, large but not convex, narrowed to half their width at the sides by the extension of the
lateral margins of the front ; prothorax a little broader than long, rounded at the sides, broadly emargi-
nate at the base and apex, narrowly margined; scutellum broadly subtriangular; elytra convex, wider
than and not closely embracing the prothorax, very narrowly margined, not quite twice as long as the
prothorax, regularly punctate-striate, with a short scutellar stria, the humeri rounded and obsolete ;
anterior tarsi slightly dilated in the male, all the tarsi beneath (and the inner sides of the tibie, especially
the two front pairs in the male, towards their apices) somewhat thickly clothed with long fulvous hairs ;
anterior tibie in the male slightly sinuous, the inner side broadly but feebly expanded triangularly before
the middle, and armed on the lower side a little distance before the apex with a strong blunt tooth (not
visible from above) ; intermediate tibiz in the male inwardly curved, slightly swollen in the middle on the
inner side, and the inner apical angle obliquely produced; tibial spurs strong ; first joint of the posterior
tarsi long, longer than the two following joints united ; epipleure narrowing at about the last ventral
segment, thence very narrowly extending to the apex of the elytra ; prosternum declivous behind, the apex
not produced, margined within ; intercoxal process broad, rounded in front.

The above characters, taken principally from unpublished notes of Mr. F. Bates,
includes one species from our country, and probably also one or two other undescribed
species from Guiana and Peru. a

Pheres is nearest allied to Eutochia (Aniara, Lac.), two species of which have been
described from North America, but differing in general form (the thorax being rounded
at the sides, and narrower than the elytra, the elytra rounded at the shoulders and not
closely embracing the thorax), structure of the mentum (which is formed much as in
many species of Uloma, and pilose in the male), anterior tibiz in the male, &c.

1. Pheres batesi. (Tab. VII. fig. 12, ¢ ; 12a, labium, g; 126, labium, 9;

12 ¢c, maxilla and maxillary palpus.)

Oblong ovate, convex, piceous black, shining. Head closely and rather coarsely punctured; prothorax rather
broader than long, moderately convex, rounded at the sides, broadly emarginate at the base and apex, widest
about the middle, the sides broadly but feebly sinuate before the base, the anterior angles prominent but
obtuse, the hind angles subrectangular, scarcely broader at the base than at the apex, the surface equally,
moderately coarsely, and not very closely punctured, the base with a short, shallow, obsolete oblique fovea on
each side; elytra strongly convex, feebly rounded at the sides, widest about the middle, regularly and not very
coarsely punctate-striate (the punctures placed close together), the interstices slightly convex and very
finely and sparingly punctured; beneath shining, the ventral surface diffusely and rather coarsely punc-

PHERES.—ULEDA. 151

tured, and with numerous coarse longitudinal wrinkles at the sides; anterior and intermediate tibie (in
some specimens) very feebly serrate on their outer edge.

Length 7-74 millim. (¢ 9.)
Hab. Panama (coll. F. Bates).

Numerous examples. |
ULEDA.
Uleda, Castelnau, Hist. Nat. 11. p. 220.

Mentum large, coarsely punctured, transversely oval, the sides produced laterally, pilose in the male, glabrous
in the female ; ligula prominent, the anterior angles rounded, triangularly emarginate in front; palpi
stout, the last joint of the maxillary pair securiform ; inner lobe of the maxille toothed at the apex ;
labrum prominent, coarsely setose, separated from the epistoma by a more or less distinct membranous
space; antennz stout, perfoliate, setose, widening outwards, rather short, not reaching to the base of the
prothorax, the third joint scarcely longer though narrower than the fourth, the seventh to the tenth trans-
verse, the eleventh almost twice as long as and rather broader than the tenth, and bluntly rounded at
the apex; head short, broad, somewhat deflexed, deeply sunk into the prothorax; epistoma short,
distinctly defined posteriorly by a transverse impressed line, broadly but feebly emarginate in front ;
lateral margins of the front but little swollen; eyes rather large, convex, strongly transverse ; prothorax
much broader than long, narrowing anteriorly, the lateral margins distinctly swollen and reflexed, the
base strongly bisinuate and’ not margined ; scutellum large, scutiform ; elytra broad, a little broader than,
and closely embracing, the prothorax, widest behind the middle, narrowly margined, the humeri rounded,
regularly and deeply punctate-striate, sometimes with a scutellar stria ; tibice dilated outwardly, the two
front pairs finely denticulated on their outer edge, in the male the anterior pair inwardly curved, and
the inner apical angle broadly and obliquely produced and covered witb short fulvous hairs, and the
intermediate ones also slightly produced at their inner apical angle (in U. diaperoides &c. the outer half
broadly expanded), spurs strong ; tarsi stout, thickly clothed (the inner sides also of all the tibise towards
their apices, sparingly) with long fulvous hairs beneath, the first joint of the posterior pair long, as long
as the apical joint ; epipleure broad, abruptly terminating some distance before the apex of the elytra ;
prosternum deflexed behind, the apex slightly produced; mesosternum short; intercoxal process broad,
slightly rounded in front ; form convex, broad oval, short.

This genus contains some few species, mostly undescribed, from Tropical South
America, one of which has been found in Mexico by Truqui; Uloma (Uleda)
diaperoides, Cast., from Brazil, also belongs to it. The broad ovate, short form, and
characters given above are, in my opinion, sufficient to separate this genus from
Uloma. I adopt the name Uleda, used by Castelnau for a section of Uloma containing
U. diaperoides. Lacordaire (Gen. Col. v. p. 333) retains this species in Uloma. ‘The
species here described is, however, more typical; in Mr. F. Bates’s collection the genus
is separated from Uloma and labelled Melania?

1. Uleda grossa. (Tab. VII. fig. 13, ¢; 134, labium, ?; 134, labium, 3;

13 ¢, maxilla and maxillary palpus.)

Broad ovate, short, convex, black, shining. Head finely and sparingly punctured; prothorax much broader
than long, widest behind the middle, rounded at the sides, narrowing anteriorly, much broader at the
base than in front, the angles obtuse, finely and rather closely punctured ; elytra broad, slightly rounded
at the sides, widest some distance behind the middle, deeply and regularly punctate-striate (the punctures

the interstices slightly convex and very finely and sparingly punctured; beneath

placed close together),
along the sides, the sides and base of the ventral surface with numerous

shining, coarsely punctured

152 HETEROMERA.

coarse longitudinal wrinkles, the rest with scattered not very fine punctures; the two basal joints of the

antennz sometimes red.
Length 83-10 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates ex Truqui).—CotomBia ; VENEZUELA, Caracas ; GUIANA,.
Cayenne; BraziL, Bahia.

Numerous examples. Apparently a widely distributed and not uncommon species
in Tropical South America; one example only from Mexico. Examples of this species
contained in Mr. F. Bates’s collection bear various MS. names. The example from
Mexico, a male, is figured.

ANTIMACHUS.

Antimachus, Gistl, Isis, 1829, Heft x. p. 1055, t. 3. figg. A,a; Lacordaire, Gen. Col. v. p. 330. -
Ceratupis, Perty, Del. Animal, art. Brasil, p. 57. |

This is a genus containing some few Tropical American species, one of which is.
found in Nicaragua. The range of Antimachus is from Nicaragua to Brazil. An
allied genus, Metabolocerus, F. Bates, is found in Colombia. |

1. Antimachus coriaceus.
Antimachus coriaceus, Lac. Gen. Col. v. p. 331, nota.
Uloma coriacea, De}. in litt.

Hab. Nicaracua, Chontales (Belt, Janson).—CotomBia ; Guiana, Cayenne; BRAZIL.

ULOMA.
Uloma, Castelnau, Hist. Nat. ii. p. 220 (1840); Lacordaire, Gen. Col. v. p. 332.

This is perhaps the most widely distributed genus of the Tenebrionide, and found.
in almost all the warmer parts of both the Old and the New Worlds, and also in
Australia; it is well represented in Central America by seven species.

Uloma will doubtless eventually have to be divided when the numerous undescribed.
tropical species are worked out. ‘The different species are found beneath bark.

1. Epipleure eatending to the apex of the elytra,
*. Thorax with a deep transverse excavation before the middle in the male.
1. Uloma mexicana. (Tab. VII. fig. 14, ¢.)

Uloma mexicana, Dej. Cat. 8rd edit. p. 2217.
? Antimachus (Uloma) mexicana, Lac. Gen. Col. v. p. 331, nota ft.

+ Lacordaire places this species in Antimachus, though he calls especial attention to the external armature.
of the tibiz ; possibly, however, he may have had some other insect in view.

ULOMA, 153

Elongate ovate, subparallel, black, shining. Head closely and distinctly (in some specimens rugulosely) punc-
tured, the epistoma with a deep triangular excavation (extending to the vertex) in the male, deeply
transversely excavate (the excavation not passing the interocular space) and with the anterior part raised
in the middle in the female; prothorax transverse, widest a little before the base, the angles obtuse, the
base feebly bisinuate, distinetly, equally, and not very closely punctured, the disc with a broad and deep
transverse excavation before the middle in the male, slightly flattened in the female; elytra a little wider
than the prothorax at the base, parallel to beyond the middle, regularly and rather deeply punctate-striate
(the punctures rounded and not very closely placed), the interstices almost impunctate and feebly convex ;
anterior tibie coarsely denticulate on their outer edge, in the male longitudinally and deeply excavate
beneath, the inner edge with a large, broad, blunt tooth (deeply concave beneath) before the middle, and
a thick brush of fulvous hairs from the middle to the apex ; intermediate tibize denticulate on their outer
edge, curved in the male ; epipleurz extending to the apex of the elytra; underside of all the femora
‘Sparingly fringed with fulvous hairs along each side of the groove beneath in the male.

Length 14-164 millim. (¢ 2.)

Hab. Muxico’ (coll. F. Bates), Cordova (Sallé), Jalapa (Hége, Morrison); Bririsa
Honpuras, Belize (coll. F. Bates), R. Sarstoon (Blancaneaua); Guatemaua, Coban,
Balheu, San Joaquin, Santa Barbara, San Gerdnimo, Capetillo, Hl Tumbador (Cham-
pion), Aceytuno (Salvin) ; SALVADOR (coll. Sharp) ; Nicaragua, Chontales (Belt, Janson) ;
Costa Rica (Van Patten).

A common species in Central America, though undescribed till now. We figure a
well-developed male from Jalapa.

2. Uloma fossulata.

Uloma fossulata (Chevr.), Dej. Cat. 3rd edit. p. 221."

Closely allied to U. meaicana, and differing only as follows :—Smaller, the epistoma transversely and similarly
excavate, a little more deeply in the male, in both sexes (as in U. mexicana, 2); the prothorax more
sparingly but more coarsely punctured, the excavation in the male narrower and more regular in outline,
the disc in the female sometimes slightly flattened.

. Length 10-12 millim. (¢ 2.)

Hab. Mexico ! (coll. F. Bates), Cordova (Sallé), Jalapa (Hoge); British Honpuras,
R. Hondo, Belize (Blancaneauz); Guaremata, Balheu (Champion).

Not uncommon in Mexico, one only from each of the other localities. The difference
in the structure of the epistoma in the male, the smaller size, and the coarser and more
sparingly punctured thorax will readily separate this species from U. meaicana.

3. Uloma levicollis.

Elongate ovate, subparallel, reddish brown or black, shining. Head closely and finely punctured, the epistoma
transversely and similarly excavate in both sexes; prothorax transverse, widest a little before the base,
the angles obtuse, very finely and rather closely punctured (in some specimens the punctuation is deeper
and more distinct), more convex and more rounded at the sides and the disc with a broad and deep
‘transverse excavation in the male, the disc (in some specimens) slightly flattened in the female; elytra
punctate-striate, the interstices smooth or very indistinctly punctured ; legs and epipleure as in U. mexicana.

Length 114-14 millim. (¢ @.)

Hab. Guatemata (Mus. Stuttgart), Pantaleon, El Tumbador (Champion) ; Nicaragua,

Chontales (coll. F. Bates, Janson, Belt); Costa Rica (Van Patten); Panama, Volcan

de Chiriqui, Bugaba (Champion).
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, May 1886. xx

154 HETEROMERA.

Many examples. Narrower, smaller, and more convex than U. mexicana; the thorax
more finely and more sparingly punctured, the epistoma similarly excavate in both
sexes. From U. fossulata, male, it may be known by its broader, smoother, and more
convex thorax, the punctuation of which is finer and closer in both sexes; the antenne
stouter, the penultimate joints more transverse.

A single immature male example contained in Mr. F. “Bates’s collection has the
antenne still stouter, the penultimate joints even more strongly transverse ; it is doubt-
fully distinct from U. levicollis.

4. Uloma retusa.
Tenebrio retusus, Fabr. Syst. Eleuth. 1. p. 149.
Uloma retusa, Casteln. Hist. Nat. ii. p. 220°.

Var. dimidiata. (Tab. VII. fig. 15, 3.)
Tenebrio retusus, var., Fabr. loc. cit.
Uloma dimidiata, Dej. Cat. 3rd edit. p. 221%.

Reddish ferruginous, the elytra black to a little beyond the middle.

Hab. Muxico, Toxpam, Cordova (Sallé); British Honpuras, Rio Sarstoon, Rio
Hondo, Belize (Blancaneaua) ; Nicanacua, Chontales (Belt, Janson); Panama (coll. F.
Bates), Bugaba (Champion).— Cotompia; Gurana, Cayenne??; Brazin'; PERu ;
ANTILLES 1.

Many examples. I am unable to find any satisfactory difference, except colour,
between our Central American specimens and the South American U. retusa, Fabr.
Both forms occur in Brazil and Guiana; in all the examples I have seen from Colombia
and Central America the elytra have only about the basal half black.

U. retusa may be known by its convex form, coarsely punctured thorax, coarsely and
deeply punctate striate elytra, and peculiar coloration; the head, thorax, legs, and
epipleure are formed much as in U. fossulata.

A male example from Chontales is figured.

** Thorax similar (the disc without anterior excavation in the male) in both sexes.
| a. Anterior tibia with a sharp triangular tooth in the male.

5. Uloma armata. (Tab. VII. fig. 16, ¢ .)

Elongate ovate, subparallel, dark reddish brown or black, shining. Head closely and rather finely punctured ;
the epistoma similarly and feebly excavate transversely in both sexes; prothorax transverse, widest a
little before the base in the male, at the base in the female, the angles very obtuse (almost rounded),
the base bisinuate and distinctly margined, closely and somewhat coarsely punctured, the disc with
a shallow sinuous transverse impression (limited on each side by a shallow oblique fovea) just before the
base, and similar (without anterior excavation in the male) in both sexes; elytra comparatively elongate,
subparallel, the base emarginate, the humeral angles prominent, deeply punctate-striate, the interstices
almost smooth ; tibia rather long (longer than in U. meavicana and allies), the inner edge of the anterior
pair in the male with a sharp triangular tooth (placed a little before the middle, and concave beneath) and
lined with coarse spiny fulvous hairs from the middle to the apex ; intermediate tibie: almost smooth on

ULOMA. 155

their outer edge, long and curved, and their inner apical angle produced in the male; posterior tibiee in the
male slightly sinuous and lined with longish fulvous hairs at the inner apical third ; epipleure extending
to the apex of the elytra.

Length 15-16 millim. (¢ 2.)

Hab. British Honpuras, Rio Sarstoon (Blancaneaux) ; GUATEMALA, Coban (Cham-
pion). .

Three examples. A male example from Coban is figured.

b. Anterior tibie with a blunt triangular tooth in the middle and a strong recurved
tooth before the apex, and the posterior tibie also toothed, im the male.

6. Uloma spinipes. (Tab. VII. fig. 17, ¢.)

Elongate ovate, convex, subparallel, reddish brown, shining. Head closely and distinctly punctured, the
epistoma transversely, but not deeply, excavate ; prothorax about as long as broad, widest in the middle,
the sides feebly sinuate before the base, the lateral margins distinctly reflexed, the angles obtuse and almost
rounded, the base strongly bisinuate and feebly margined, the disc with a shallow sinuous transverse
impression before the base, exceedingly finely and closely punctured ; elytra scarcely wider than the
prothorax at the base, the humeral angles prominent and concave within (into which the hind angles of
the prothorax are received), deeply punctate-striate, the interstices sparingly and finely punctured and
feebly convex ; legs stout ; anterior tibiae sinuous, widening towards the apex, the outer edge closely and
finely denticulate, in the male the inner edge with a broad, blunt, triangular tooth about the middle, beyond
which deeply and semicircularly emarginate, astrong blunt tooth (directed backwards) just before the apex,
and a brush of fulvous hairs (also, but smaller, in the female) at the apex itself; intermediate tibie
sinuous, finely denticulate on their outer edge, in the male the inner edge armed with an indistinct
tooth before the middle, and another near the apex, and some fulvous hairs at the apex itself ; posterior
tibix in the male slightly sinuous, the inner edge armed with a short sharp tooth near the base; tibial
spurs long and sharp; prosternum horizontal, the apex a little produced and swollen ; epipleure nar-
rowly extending to the apex of the elytra.

Length 12-13 millim. (¢ 9.)

Hab. GUATEMALA (mus. Stuttgart), Volcan de Fuego, 6400 feet (Salvin).

Five examples. A very distinct species.

9. Epipleure not extending to the apex of the elytra.
7. Uloma divergens. (Tab. VII. fig. 18, 4.)

Oblong ovate, rather broad, moderately convex, reddish brown or black, shining.’ Head closely and almost
rugulosely punctured, the epistoma transversely excavate in both sexes; prothorax a little broader than
long, widest about the middle in the male, a little before the base in the female, narrowing anteriorly,
the angles obtuse, closely and finely punctured, similar (without anterior excavation in the male) in both
sexes; elytra comparatively short (not twice the length of the prothorax), slightly rounded at the sides,
the base feebly emarginate, the humeral angles prominent, shallowly punctate-striate, the interstices very
finely and sparingly punctured ; legs thin ; anterior tibiz slightly curved, widening but little towards the
apex, and unarmed on the inner side in both sexes; intermediate tibie feebly denticulate on their outer
edge in the male, long and thin, curved and sinuate, distinctly swollen in the middle on the inner side, and.
the inner apical angle produced into a strong tooth ; posterior tibie in the male long and thin, slightly
curved, feebly swollen in the middle, and the inner apical angle produced ; epipleurs broad, not reaching

the apex of the elytra.
Length 114-123 millim. (d 2.)

Hab. GuatemaLa, near the city (Salvin), Purula 4000 feet, Totonicapam 8500 to
10,000 feet (Champion).
; (Champ a

156 HETEROMERA.

Six examples. This species may be known at once by its short broad form, the
epipleure not reaching the apex of the elytra, the long and thin tibie, and male
characters ; it is probably generically distinct from Uloma. )

I found this species under the bark of pines, at a great elevation at Totonicapam,
also singly at Purula. A well-developed male from Guatemala city is figured.

CYN AUS. :
Cyneus, Leconte, Class. Col. N. A. p. 288; Horn, Rev. Ten. of Am. north of Mexico, p. 369.

Two species are known of this genus, both from Southern California ; we now add a
third species from our northern boundary.

1. Cynzus opacus.
Elongate ovate, depressed, dull ferruginous, not shining. Head very closely and finely punctured; prothorax |
transverse, widest about the middle, about equally narrowing at base and apex, the apex broadly but not
deeply emarginate, the base very feebly bisinuate, subtruncate, the surface rather coarsely and somewhat
closely punctured ; elytra a little wider than the prothorax at the base, regularly punctate-striate, the
punctures rounded and not very closely placed, the interstices feebly convex and very closely and finely

punctured.
Length 53-67 millim.

Hab. Muxico, Northern Sonora (Morrison).

Many examples received from the late Mr. Morrison as Aphanotus brevicornis. A
dull, depressed species, with the entire upper surface very closely punctured. Flatter

and duller than C. angustus, the elytral strize more regularly impressed, the interstices

feebly convex, the thorax less emarginate in front, the upper surface more closely
punctured; also allied, but more distantly, to C. depressus, but, judging from the
description of that species, quite distinct.

ALPHITOBIUS.
Alphitobius, Stephens, Il. Brit, v. p. 11 (1832).
A cosmopolitan genus consisting of a few species, at the expense of which numerous
others have been described.

1. Alphitobius diaperinus.
Tenebrio diaperinus, Panz. Fn. Ins. Germ. xxxvii. p. 16 (1797).
Hab. Mexico (coll. F. Bates), Puebla, Vera Cruz, Guanajuato (Sal/é).—EuRopt ;

Nortu AMERICA, &c.

2, Alphitobius piceus.
Helops piceus, Oliv. Ent. iti, 58, p. 17, t. 2. figg. 18 a, 6 (1795).

Hab. Mexico, Yucatan (coll. F. Bates), Guajuco in Nuevo Leon, San Pedro in Coa-

ALPHITOBIUS.—DOLIEMA. 157

huila, Minas Viejas (Dr. Palmer), Cosamaloapam, Vera Cruz (Sallé); Costa Rica
(Rogers); Panama, near the city ( Champion).—Kurore; Norta America, &c.

I met with this cosmopolitan species on the beach at Panama amongst old bones
thrown out from the slaughter-houses, and in company with Necrobia rufipes.

DOLIEMA.
Doliema, Pascoe, Journ. Ent. i. p. 50 (1860); F. Bates, Ent. Monthly Mag. ix. p. 98.
Adelina, Leconte, Ann. Lyc. New York, v. p. 149 (nec Wollaston).

Sitophagus, Horn, Rev. Ten: of Am. north of Mexico, p. 346 (nec Mulsant).
Schedarosus, Reitter in litt.

Mr. Pascoe described this remarkable genus upon examples from “ Batchian, Ceylon,
and Manila.” There cannot, however, be the slightest doubt, speaking from my own
personal observation, that the genus is indigenous in Tropical America, at least two
species being abundant in our country in many localities quite away from civilization.
In the British Museum collection there are additional examples of both sexes of the
species (D. platisoides) described by Mr. Pascoe, from Java, as well as from the localities
quoted. I cannot help thinking, however, that Doliema is a native of the New World,
and that it must have been introduced in some way through the medium of commerce,
many species of Tenebrionide having been thus transmitted to various parts of the
world. In America the genus ranges from the Middle United States to the Amazons
valley. | .

The different species, of which some five or six (all testaceous in colour and closely
allied) are now known, superficially resemble the Cucujide, owing to their very
depressed or flattened form. They are found beneath bark, both in the forest region
and in the more open parts of the country, one (D. plana) being very abundant. Mr.
Pascoe (Joc. cit.) omits to mention the peculiar armature of the head of the male, the
most important specific character.

One new species from Guatemala differs from the others in wanting the sublateral
carina to the elytra, and‘also in being very feebly convex instead of flattened ; in other
respects, however, it agrees.

* Upper surface plane; the elytra with sublateral carina.

1. Doliema plana.
? Cucujus planus, Fabr. Syst. Eleuth. ii. p. 94°.
Adelina plana, Dej. Cat. 3rd edit. p. 340*; Lec. Ann. Lye. New York, v. p. 149°; Class. Col.
N. A. p. 2384; Jacq. Duval in Sagra’s Hist. de Cuba (Spanish edition), vii. p. 64°.

+ This species has not been identified by modern writers; there can be little doubt that it represents either
our common D. plana or another species of the same genus. The following is the description :—“ QO, planus,
testaceus, thorace punctis duobus baseos impressis. Corpus parvum, planum, testaceum, immaculatum. Thorax
punctis duobus baseos impressis. Elytra vix striata.—Habitat in America meridionali.”

158 _ HETEROMERA.

Sitophagus lecontei, Horn, Rev. Ten. of Am. north of Mexico, p. 346, t. 14. f. 20, 3”.
? Sitophagus planus, Gemm. & Har. Cat. vii. p. 1987.
Schedarosus scidarius, Reitter in litt.

Hab. Norv America, Colorado 3 desert 4®, Owen’s valley °, Arizona °.—MeExico (coll.
F. Bates, Oberthiir, Brit. Mus.), Vera Cruz, Teapa (Sallé), Jalapa (Hoge); Britisu
Honpvras, R. Sarstoon (Blancaneaux); GuateMa.a, Yzabal (Sal/é), near the city, Zapote,
Capetillo, Chacoj (Champion); Nicaraeua, Chontales (Janson), R. Roman on the
Mosquito coast (coll. Oberthiir); Panama, Volcan de Chiriqui, Bugaba (Champion),
Matachin (Thiéme, coll. Oberthiir).—Sourn AmEricA!; CoLomBia, Ambalema; GUIANA,
Cayenne?; Curt (coll. Brit. Mus.); Antinins, Cuba® (coll. Brit. Mus.).

An abundant species throughout our country, extending northwards into Colorado
and Arizona, and southwards into South America.

In the long series of about 130 examples of both sexes before me, I find that the
elytra vary a little in length, and also slightly, according to maturity, in the intensity
of the punctuation; well developed males (one of which is figured by Dr. Horn, loc.
cit.) may, however, always be known, as pointed out by Dr. Horn, by the broad angular
horizontal extension of the sides of the head, concealing a small and short horn beneath
in front; poorly developed males have the sides of the head formed very much as in
D. cucujiformis, but have the antennary orbits much less extended laterally and almost
rounded externally, and the tubercle beneath almost obsolete ; the thorax in both sexes
is only slightly constricted behind the middle, and, as in the other species, the disc
in some examples appears to be broadly flattened and feebly concave.

This is the smallest species of the genus.

D. plana is sometimes to be seen in collections labelled D. furcata, and under other
MS. names.

2. Doliema cucujiformis.
Schedarosus cucujiformis, Reitter in litt.

Longer and larger than D. plana; the head broader and more coarsely punctured ; the antennary orbits more
swollen in the female, in the male broadly and angularly produced (but only slightly) on each side in front
(extending but. little beyond the epistoma, which in this sex is deeply transversely impressed on each side
in front), beneath which is a short tubercle ; the prothorax rather more convex anteriorly, more constricted
behind, more evidently punctured, the hind angles usually sharper and more prominent; the elytra com-
paratively longer, more evidently punctate-striate, the interstices more distinctly punctured.

Length 44-5} millim. (¢ 9.) ,

Hab. Mexico, Cordova, Jacale (Sallé), Jalapa (Hoge); Guatema.a, near the city,

Capetillo, Zapote, San Gerénimo (Champion); Nicaraeua, Chontales (Janson).—

Cotomsia (coll. Brit. Mus.), Manizales (coll. Oberthiir).

Numerous examples, Also a common species in our country, and often found in
company with D. plana. D. cucujiformis is very closely allied to D. platisoides, Pascoe,
the type of which (a female), kindly lent me for examination by the describer, only

DOLIEMA. 159

differs from the same sex of D. cucujiformis in having the thorax relatively broader ;
the male, however, of which there are several examples contained in the National
Collection, has the epistoma angularly produced on each side in front, and also the
antennary orbits (the latter not extending so far forward as the epistoma), thus differing
from the same sex of D. cucwjiformis. |
In a long series of examples I find that the thorax and elytra vary somewhat in width ;
the thorax, however, is more constricted behind than in D. plana. LD. (Pytho) pallida,
Say, a species found in the Middle and Southern States of North America, is also
closely allied to this species; but, judging from a female example of that species (from
Louisiana) in the National Collection, and the vague description of the male, distinct.

3. Doliema frontalis. (Tab. VII. fig. 24, 3.)

Form of D. plana. Antenne with the first joint long and much swollen outwardly (the basal fourth thin),
the second joint short, the third scarcely twice the length of the second, the fourth to the tenth long and
ovate, the eleventh distinctly longer than the tenth, and somewhat pointed at the apex; head very broad,
the antennary orbits swollen and extending laterally as far as the eyes, and broadly but narrowly folia-
ceous anteriorly, enclosing a deep groove along the whole of the front (continued as a deep transverse
groove across the epistoma, which does not extend beyond the foliaceous margin, the latter rather broadly
emarginate in the middle), finely and sparingly punctured ;- eyes large, rounded, widely separated ; pro-
thorax very broad and transverse, constricted from the middle to the base, broadest anteriorly (if any-
thing, as broad as or rather broader here than the elytra), broadly emarginate at the base and apex, the
anterior angles rounded, the hind angles subrectangular, the disc longitudinally impressed, the base with
a deep longitudinal fovea on each side, the surface very finely and sparingly punctured’; elytra with the
base broadly and somewhat obliquely emarginate on each side (for the reception of the hind angles of the
prothorax), shallowly punctate-striate, the interstices exceedingly finely and irregularly wrinkled or
punctured.

Length 5 millim. (<¢.)

Hab. Britsn Honpuras, R. Hondo (Blancaneaus).—Amazons, Para and Santarem
(coll. Brit. Mus.).

Four male examples, two from British Honduras and one from each of the other

localities. .
This species may be at once known by the remarkable structure of the head in the

male. There is also in the British Museum Collection a single female of a species from
the Amazons possibly referable to it.

** Upper surface feebly convea ; the elytra without sublateral carina.

4. Doliema angustata. (Tab. VII. fig. 26, 3.)

Elongate, narrow, parallel, very feebly convex, brownish testaceous, shining. Head closely and finely punc-
tured, the epistoma broadly and deeply emarginate in both sexes; in the male the antennary orbits
swollen, angularly produced on each side in front (in well-developed examples also angularly produced
within), the apices slightly converging, attenuate, and deflexed, and the epistoma deeply and semicir-
cularly excavate (its front face appearing abruptly declivous) ; in the female deeply impressed transversely
in front, the orbits swollen; antenne comparatively short, only slightly longer in the male, the seventh
to the tenth joints transverse, the eleventh joint oval and bluntly rounded at the apex; prothorax strongly
transverse, subtruncate at the base, very feebly emarginate at the apex, rounded at the sides, very

160 HETEROMERA.

slightly constricted just before the base (the hind angles in consequence somewhat distinct and subrect-
angular), the anterior angles rounded, the basal fovez very shallow, the surface finely but not very closely
punctured; elytra regularly and distinctly punctate-striate, the interstices finely punctured, without
sublateral carina; beneath finely and sparingly punctured ; meso- and metasternum longitudinally exca-
vate in their basal halves.

Length 34-4 millim. (¢ 2.)
Hab. GuatemaLa, Las Mercedes, Cerro Zunil (Champion).

Four examples. This species, though not possessing the flattened form and sublateral _
carina to the elytra characteristic of the other species, agrees in general structure with
Doltiema, and I place it accordingly in that genus. Compared with the other species,
the legs are rather shorter, and the antenne of the male are scarcely longer than those
of the female. The angular extension of the sides of the head varies a little, according
to development, in the male; there is no tooth beneath.

SITOPHAGUS.

Sitophagus, Mulsant, Hist. Nat. Col. de France, Latigénes, p. 264 (1854) ; Ann. des Sci. phys. et
nat. d’Agric. de Lyon, sér. 3, iii. p. 204; Lacordaire, Gen. Col. v. p. 887; Jacq. Duval, Gen.
Col. d’Europe, iii. p. 806 (nec Horn).

Adelina; Wollaston, Ann. & Mag. Nat. Hist. ser. 3, ii. p. 413 (1858) ; Col. Atlant. App. p. 61 (nec
Leconte).

This genus was described by Mulsant for the reception of a single male example
(figured in Jacq. Duval, op. cit.) of an introduced insect captured at Marseilles. Four.
years later Wollaston, probably overlooking Mulsant’s description, again described the
genus under another name, Adelina, upon examples introduced into Madeira in a cask
of bad flour. The latter author suspected the specimens were of American origin ; a
comparison of a common Central-American species with Wollaston’s type in the British
Museum Collection proves the correctness of this surmise and of the identity of the two
insects. To increase the confusion, the genus has not been properly identified by
American coleopterists—Leconte referring two species of a then undescribed and
different genus (Doliema) to it; Horn (Rev. Ten. of Am. north of Mexico, p. 346), later
on, adopting Sitophagus for the same species. Again, Reitter (Mitt. des Miinchen. Ent.
Ver. i. pp. 8-10) has described three species of this genus: S. castaneus from Mexico—
this we now know to be identical with our common species; S. cavifrons (the type of
which has been kindly lent me by M. Réné Oberthiir), from Venezuela, belongs to
another genus; and S. turcicus, from the Balkans, also probably not referable to the
genus.

We have now to record four species from Central America, all of which are found
beneath bark, more especially in the forest-region. At least one species of this genus,
though originally of subcortical habits, seems to have acquired a taste for meal, parallel
cases to which are well known in this group of Tenebrionide. S. cynwoides is included
with some doubt, it may possibly form the type of a new genus.

SITOPHAGUS. 161

1. Sitophagus hololeptoides.
Uloma (Ulosonia) hololeptoides, Cast. Hist. Nat. ii. p. 2207.

Sitophagus solieri, Muls. loc. cit.? ; Lacord. loc. cit. ; Jacq. Duval, loc. cit. p. 306, t. 75. fig. 372 3";
F. Bates, Ent. Monthly Mag. ix. p. 99.

Hypogena hololeptoides, Jacq. Duval, in Sagra’s Hist. de Cuba (Spanish edition), p. 63°.
Adelina farinaria, Woll. loc. cit. p. 414°; loc. cit. p. 61.

Hypogena complanata, De}. Cat. 3rd edit. p. 220; Lacord. Gen. Col. v. p. 336, nota.
Ulosonia hololeptoides, Lacord. loc. cit. p. 337, nota®; Gemm. & Har. Cat. vi. p. 1964.
Sitophagus castaneus, Reitter, Mitt. des Miinch. Ent. Ver. i. p. 9 (1877)’.

? Hypogena cornigera, Dej. Cat. loc. cit. p. 220.

Hab. Mextco® (coll. F. Bates, Oberthiir), Yucatan (coll. Pascoe), Ventanas (Forrer),
Playa Vicente, Capulalpam, Vera Cruz, Cordova, Tuxtla (Sa//é), Mirador, Esperanza,
Jalapa (Hoge); British Honpuras, Belize (Blancaneaux) ; GUATEMALA, near the city,
Capetillo, Zapote, El Tumbador, San Gerénimo, Tamahu, Senahu (Champion); Nica-
RAGUA, Chontales (Janson), Chinandega (Sallé); Costa Rica, Cache (Rogers) ; Panama,
Volcan de Chiriqui (Champion).—AntiLLES1, Cuba®; ?Gurana, Cayenne®; ? Brazin®.

There cannot, I think, be much doubt that the synonymy given above is correct, and
that the insects described under the above names represent one and the same species.
The insects introduced into France 234 and Madeira ®’, and described by Mulsant and
Wollaston, are certainly identical with our common species. Castelnau describes his
species as “ allongé,” and gives the length as 13 lin., but from the width given (14 lin.)
this is probably a misprint for 24 lin., the size of small examples of our species.

Typical examples of S. castaneus, from Reitter’s own collection, kindly lent me for
examination by M. Réné Oberthiir, agree perfectly with the present species, which thus
appears to have been described over and over again by different authors. SS. hololep-
toides is common throughout our country, and there cannot be the slightest doubt that
it is indigenous there. Lacordaire gives Cayenne * and Brazil * as localities, possibly in
error; I have not seen it from south of Panama.

Undeveloped males of this species have only the sides of the front of the head strongly
raised and reflexed (the epistoma appearing abruptly and deeply emarginate), and not
produced into recurved converging horns.

S. hololeptoides may be readily known by its broad and depressed form and the
peculiar cephalic armature of the male; the broad epipleure terminate abruptly a little
beyond the last ventral suture ; the upper surface is shining and castaneous in colour;
the intermediate coxal cavities are slightly open externally, but the trochantin is only

slightly visible.

2. Sitophagus fuliginosus. (Tab. VIII. fig. 1, 4.)

Oblong ovate, subparallel, moderately convex, black, shining. Head closely and somewhat coarsely punctured ;
in the male the epistoma broadly, abruptly, and deeply emarginate (the base of the emargination truncate)
and shallowly impressed transversely, and the antennary orbits swollen and raised and produced anteriorly

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, May 1886. YY

162 HETEROMERA.

into a -long, broad, obtuse horn (as in S. hololeptoides); prothorax transverse, rounded at the sides,
widest. about the middle, very slightly narrowing from the middle to the base, the base bisinuate, the
anterior angles obtuse, the hind angles subrectangular, rather convex, the basal fovex deeply impressed,
the disc shallowly impressed longitudinally in the basal half, the surface a little more sparingly and rather
less coarsely punctured than the head; elytra long, subparallel, the width of the prothorax at the base,
regularly punctate-striate, the interstices very feebly convex outwardly and finely and sparingly punctured ;
epipleurz abruptly ending near the last ventral suture.
Length 6 millim. (<¢.)

Hab. GuateMAua, Capetillo (Champion).

One example. Narrower and more convex than S. hololeptoides ; the thorax more
closely and rather more coarsely punctured, the basal foveee deeper, the sides more
distinctly margined ; the elytra narrower and more parallel, more narrowly margined,
the interstices feebly convex outwardly. In the male the antennary orbits are formed
as in S. hololeptoides, but the epistoma is only shallowly and broadly impressed trans-
versely before the eyes (not deeply as in that species); the antenne are only of the
length of, and formed much the same as (though less angular at their inner apices), those
of the female of S. hololeptoides.

3. Sitophagus dilatifrons. (Tab. VII. fig. 22, ¢.)

‘Oblong ovate, moderately convex, dark reddish brown or black, slightly shining. Head in the male with the
antennary orbits broadly extended anteriorly and foliaceous (deeply concave within, abruptly truncate in
front, and divided in the middle by a broad and deep triangular emargination), almost smooth and shining
with a large \/-shaped impression extending from the vertex forwards; in the female the orbits are
slightly swollen, the epistoma broadly and shallowly impressed transversely behind, deeply impressed on
each side before the eyes (thus appearing convex in the middle anteriorly), and truncate in front, the sur-
face closely and rather coarsely punctured (the epistoma smoother); antenne but little longer in the
male, the third joint long, the fourth to the tenth triangular and decreasing a little in length, the eleventh
broad and bluntly rounded at the apex; prothorax transverse, rather convex, rounded at the sides, narrow-
ing a little anteriorly in the female, broader and more convex anteriorly and more strongly rounded at the
sides in the male, the hind angles subrectangular, the base bisinuate, the basal fovex shallow, the surface
closely and comparatively coarsely punctured ; elytra the width of the prothorax at the base, regularly
and deeply punctate-striate, the interstices very distinctly and not very finely punctured; femora and
tibie finely asperate ; epipleure abruptly ending near the last ventral suture. .

Length 6-7 millim. (¢ 2.)

Hab. GuatTemaLa, El Tumbador, El Reposo, Pantaleon (Champion).

Four examples. Comparatively shorter in form and duller than 8. Suliginosus ; the
male to be known at once by the characters given above. In this species the femora
and tibiz are not so smooth as in 8. hololeptoides and S. fuliginosus, and the outer
edges of the latter appear to be very finely serrate.

4. Sitophagus (?) cynezoides. (lab. VIII. tig. 2.)
Oblong ovate, moderately convex, subparallel; dull ferruginous, the front of the head, the disc of the prothorax,
the,suture, and the reflexed margins of the elytra rufous; antenne about reaching to the base of the pro-
thorax, widening gradually, the second joint very short, the ninth and tenth joints subtransyverse ; head
unarmed in both sexes, the epistoma emarginate in front, well defined posteriorly by a transverse
impressed line, the intraocular space feebly swollen transversely, the antennary orbits slightly swollen,

SITOPHAGUS.—ULOSONIA. 163

closely and not very finely punctured; prothorax transverse, the sides almost straight from the middle to
the base, strongly narrowing anteriorly, the base feebly bisinuate, subtruncate, and with a shallow longi-
tudinal fovea on each side, the apex deeply arcuate emarginate, the anterior angles prominent, obtuse, the
hind angles subrectangular, the disc sometimes shallowly impressed transversely before the base, the
surface closely, finely, and equally punctured (a little more finely and more diffusely than the head) ;
elytra long, about three times the length of the prothorax, regularly punctate-striate (the punctures
shallow, not coarse, and closely placed), the interstices feebly convex towards the sides and apex, finely and
sparingly punctured; beneath shining, sparingly punctured; intermediate coxal cavities slightly open
externally, the trochantin barely visible.
Length 6-7 millim.

Hab. Mexico, without locality (Hége).

Numerous examples. This species agrees so nearly with Sitophagus in its principal
characters that I venture to place it in that genus; the head, however, is unarmed in
both sexes, and, owing to the deep emargination of the front of the thorax, appears less
deeply inserted ; the epistoma is emarginate in front; the antenn are formed much as
in §. fuliginosus, but with the second joint shorter and the outer joints broader and
more transverse. In general form somewhat resembling Cyneus, but with differently
formed antennex, broadly margined elytra, longer legs, and slightly gaping intermediate
coxal cavities (as in Sitophagus); the head is formed much as in Cyneus.

ULOSONTIA.

Ulosonia, Castelnau, Hist. Nat. ii. p. 220 (1840); Lacordaire, Gen. Col. v. p. 336; Leconte, Class.
Col. N. A. p. 233; Horn. Rev. Ten. of Am. north of Mexico, p. 366; Lec. & Horn, Class. Col.

N. A. p. 381.
Hypogena, De}. Cat. 3rd edit. p. 220.

The name Ulosonia was originally used by Castelnau for a section of the genus
Uloma containing two Tropical American species, U. hololeptoides and U. tricornis.
Lacordaire (Joc. cit.) fully describes the genus, making it include U. bi-impressa (from
Colombia) and U. hololeptoides, this author omitting all reference to U. tricornis.
Ulosonia is retained here solely for U. bi-impressa, U. tricornis, and allies, numerou in
species in Tropical America ; U. hololeptoides will be the type of the genus Sitophagus.

The different species are found beneath bark in the humid forest regions of Tropical

America, more especially in the “ tierra caliente; we now have to record six species

from our country, one of which is found just on our northern boundary, the genus

ranging from the Colorado desert to the Amazons valley.
1. Ulosonia tricornis.

Uloma (Ulosonia) tricornis, Cast. Hist. Nat. ii. p. 220°. .
Hypogena tricornis, Jacq. Duval in Sagra’s Hist. Cuba, p. 63, t. 8. fig. 16 (Spanish edit., 1856), and

p. 148, t. 8. fig. 16 (French edit., 1857) *; Dej. Cat. 3rd edit. p. 220.

Hab. Mexico (coll. F. Bates), Yucatan (coll. Oberthiir), Tehuantepec, Playa Vicente,
YY 2

164 HETEROMERA.

Cordova, Tuxtla (Sailé), Esperanza, Jalapa(Hége); Britisu Honpuras, Belize, R. Hondo,
R. Sarstoon (Blancaneaux); GuatEmata, Chinautla (Salvin), Capetillo, Cerro Zunil, Las
Mercedes, Zapote, El Tumbador, San Gerénimo, Cubilguitz (Champion), Yzabal (SaJ/é).
— ANTILLES 1, Cuba ?.

A common species in Mexico and Guatemala. Smaller, narrower, and more parallel
than U. bi-impressa ; the thorax broader in front, invariably with numerous additional
scattered very coarse punctures upon the disc; the under surface smoother (the flanks
of the thorax especially) and more shining. Well-developed males have three long
thin porrect horns upon the head: in the long series of upwards of one hundred speci-
mens before me every degree of development from acute tubercles to long horns is to be
found; the frontal horn in this species is always as long as the hinder ones. This
species also varies very considerably in size.

A small undeveloped male from Jalapa differs from the other specimens in having the
thorax punctured as in U. depressa and the striz of the elytra more shallowly and finely
punctate-striate ; it is doubtfully referred to this species.

2. Ulosonia canaliculata.

Form of U. tricornis; the male cephalic armature as in poorly developed specimens of that species, and
differing as follows :—The prothorax smoother, the surface with exceedingly minute scattered punctures,
the large coarse punctures almost entirely obsolete (rarely with at most two or three impressions on the
disc), the disc with a short deep longitudinal groove at the base and (in one specimen) longitudinally
depressed from the middle to the base; the strie of the elytra rather deeper, and the punctures more
distant one from another, the interstices more sparingly punctured; the margins of the prothorax and
elytra more strongly thickened and reflexed.

Length 9-10 millim. (d 9.)

Hab. Nicaracua, Chontales (coll. F. Bates, Belt); Costa Rica, Cache (Rogers) ;
Panama, Volcan de Chiriqui (Champion).

Eight examples. From U. bi-impressa, 2 , this species may be known by its narrower
form, the smoother head, the elevation on each side of the intraocular space stronger
and extending transversely inwards (as in JU. tricornis and U. depressa), smoother
thorax, &c

Allied undescribed forms are found in Brazil.

3. Ulosonia depressa.

Form of U. tricornis, and the male cephalic armature as in that species; differing as follows :—Colour dark
reddish brown, flatter and more depressed, the surface of the prothorax more distinctly punctured and
with numerous irregularly scattered much coarser shallow impressions (not so coarse as in U. tricornis, nor
placed principally on the disc), the elytral strie more shallowly impressed and the punctures shallower and
closer together, the interstices flat and finely and rather closely punctured, the expanded lateral margins
of the prothorax and elytra rather thinner and more prominent, the under surface very sparingly punctured
and almost smooth.

Length 74-9 millim. (¢ 2.)

Hab. Mexico (coll. F. Bates), Cuernavaca (Sallé).

ULOSONIA. 165

Six examples. Though this species is very near U. tricornis it appears to me to be
sufficiently distinct.

4. Ulosonia dejeani. (Tab. VII. fig. 19, ¢ *.)
Hypogena triceros, De}. in litt.

Elongate ovate, depressed, subparallel, dark reddish brown or black, shining. Head closely and distinctly
punctured, armed in the male with a strong broad horn (curving upwards, concave within, and truncate
at the apex) in front, and a longish curved horn (directed forwards) on each side of the intraocular space
(starting from immediately above the eyes), the intraocular space narrowly raised and swollen on each side
(impinging on the inner margin of the eyes) and rugulosely punctured in the female ; prothorax transverse,
almost as broad in front as at the base, and the sides straight from the middle to the base in the male, a
little narrowed anteriorly and the sides slightly rounded in the female, very narrowly margined at the
sides, the base with a short oblique fovea on each side about the middle, the disc obsoletely or feebly
impressed before the base, exceedingly finely and closely punctured ; elytra punctate-striate, the impres-
sions shallow and placed close together, the interstices flat, finely and closely punctured ; under surface
rather dull, somewhat closely punctured, the flanks of the prothorax reticulate-punctate.

Length 63-84 millim. (¢ 2.)

Hab. Guatemata, El Tumbador, Las Mercedes (Champion).—Cotomsia (coll. F.
Bates).

Six examples. This species will be readily identified by its depressed form, the
very narrowly margined and comparatively smooth thorax, and the peculiar cephalic
armature of the male; in the female the intraocular space is narrowly raised on each
side, impinging on the eyes as in the same sex of U. bi-impressa. Labelled Hypogena
triceros, Dej., in Mr. F. Bates’s collection.

A well-developed male from Las Mercedes is figured.

5. Ulosonia bi-impressa.

Tenebrio (?) bi-impressus, Latr. in Humb. et Bonp. Recueil d’Observ. de Zoologie, ii. p. 17, t. 31.
fig. 6 (1833) ; Lacord. Gen. Col. v. p. 337, nota '.

Ulosonia bicornis, Deyr. in litt.

? Trogosita vacca, Fabr. Syst. Hleuth. i. p. 153.

Hypogena bi-impressa, De}. Cat. 3rd edit. p. 220°.

Hab. Mexico (coll. F. Bates), Ventanas (Forrer), Tuxtla, Playa Vicente, Chinantla
(Sailé), Jalapa (Hoge); Brirish Honpuras, R. Sarstoon (Blancaneaux) ; GUATEMALA,
Yzabal (Sallé), Pantaleon, Las Mercedes, El Tumbador, Paraiso, El Reposo, Mirandilla,
Teleman (Champion) ; Nicaragua, Chontales (Janson); Panama (coll. Bates), Bugaba
(Champion).—Co.oms1a }, Cartagena *, Bogota ; Guiana; BRaziu.

A widely distributed and common species in Tropical America, ranging from Mexico
to Brazil. The frontal horn in the male of this species is shorter than the hinder ones,
and always in the form ofa short conical tubercle, the hinder ones only developing into
long porrect horns. The thorax is exceedingly finely and closely punctured, often with

* This insect is longer, narrower, and more parallel than represented on the Plate.

166 HETEROMERA.

some scattered shallow coarser impressions, which are not nearly so coarse as in
U. tricornis nor placed principally on the disc, but scattered irregularly over the sur-
face. The surface beneath is punctured, the flanks of the thorax rugulosely. The two
long horns upon the back of the head in the male are stout, subhorizontal, and slightly
curved; in U. tricornis they are longer, thinner, and project upwards.

Latreille described this species upon a single imperfect example, probably a poorly
developed male. Labelled U. dicornis, Deyr., in the Sallé Collection.

Trogosita vacca, Fabr., a species not identified by Lacordaire, is probably this or a
closely allied species.

In Mr. F. Bates’s collection there is a female example of this species labelled “United
States, ex coll. Laferté ;” possibly, however, there is some mistake about this locality.

6. Ulosonia marginata.

Uloma marginata, Lec. Ann. Lyc. New York, v. p. 149°.
Ulosonia marginata, Lec. Class. Col. N. A. p. 2337; Horn, Rev. Ten. of Am. north of Mexico,
p- 867°; Lec. & Horn, Class. Col. N. A. p. 381.

Hab. NortH America, Gila? and Colorado! rivers, Colorado desert ?.

Found under cotton-wood bark just on our northern boundary. I have not seen this
species.

METULOSONIA.
Metulosonia, F. Bates, Ent. Monthly Mag. ix. p. 261.

Five species are now known of this genus, all from Tropical America, two inhabiting
our country.

1. Metulosonia horni.
Metulosonia horni, F. Bates, Ent. Monthly Mag. ix. p. 262°.

Hab. Panama! (coll. F. Bates).
Closely allied to IZ. gyrinoides, Chevr., from Brazil.

2. Metulosonia reflexa. (Tab. VII. fig. 20.)
Peltoides reflexus, Chevr. Petites Nouv. Ent. no. 198, ii. p. 287 (1878) °.

Hab. British Honpuras, Belize (Blancaneaux); Guatemaua, Yzabal (Sallé), Panta-
leon, Zapote, El Tumbador, Torola, Las Mercedes (Champion); Nicaragua, Chontales
(Janson).

Not uncommon in Guatemala, beneath sappy bark.
This species is again very closely allied to M/. horni, but the upper surface is more
sparingly and finely punctured, the head smoother, the coarser scattered punctures at

PHAYLLUS. 167

the sides of the thorax are finer and fewer in number, and the striz of the elytra are
finer towards the suture, the punctures finer and closer together.
An example from Belize is figured.

PHAYLLUS.

Mentum trapeziform, strongly deflexed on each side, longitudinally convex in the middle; last joint of the
maxillary palpi broad, securiform, that of the labial palpi broad and ovate ; ligula broad, exserted; antenns
about reaching to the base of the prothorax, widening a little outwardly, the third and fourth joints about
equal in length, the fifth wider and about as broad as long, the sixth to the tenth transverse and about
equal, the eleventh the width of, but much longer than, the tenth, and bluntly rounded at the apex ;
head small, rather narrow, deeply sunk into the prothorax, unarmed and similar in both sexes, the
epistoma distinctly defined and broadly truncated in front; labrum transverse, visible from above; eyes
rather large, obliquely transverse, extending beyond the slightly swollen antennary orbits; prothorax
transverse, narrowly margined, rapidly narrowing anteriorly, the base strongly bisinuate and closely
embracing the elytra, and with a short shallow longitudinal fovea on each side ; scutellum triangular ;
elytra the width of the prothorax at the base, gradually narrowing from the base, the humeri prominent
and formed by the somewhat prominent reflexed margin, regularly punctate-striate, the disc and also that
of the thorax slightly flattened ; legs slender, smooth, the tibial spurs small, the middle coxe without
visible trochantin, the first joint of the posterior tarsi much longer than the two following joints united,
and, if anything, rather longer than the apical joint; prosternum narrow, horizontal, the apex a little
produced and received by the concave mesosternum ; intercoxal process triangular; epipleure broad,
extending to the apex of the elytra. Form regularly oval, depressed.

This genus will include one species only, of small size; it probably represents the
Hypogena minuta of Dejean’s Catalogue. P. minutus is not uncommon under bark

throughout our country, and extends southwards to Brazil. Of described genera,
Phayllus is perhaps most nearly allied to Metulosonia and Peltoides.

1. Phayllus minutus. (Tab. VII. fig. 21; 21a, labium; 216, maxilla and~
maxillary palpus.)

? Hypogena minuta, De}. Cat. 3rd edit. p. 220°.

Regularly oval, depressed, reddish testaceous or castaneous, slightly shining. Head finely and rather closely
punctured, the epistoma well defined posteriorly by a transverse broad impression, the space between the
eyes slightly raised transversely ; eyes black; prothorax widest at the base, regularly rounded at the
sides, much narrowed anteriorly, closely, finely, and equally punctured ; elytra regularly punctate-striate,
the interstices flat, finely, rather closely, and very evidently punctured ; beneath shining, finely and not
very closely punctured ; legs reddish, sometimes a little darker.

Length 4-54 millim. (¢ 9.)

Hab. Mexico (coll. Oberthiir), Jalapa (Hoge); Brrrish Honpuras, R. Hondo, R.

Sarstoon, Belize (Blancaneaun) ; GuaTEMALA, San Juan in Vera Paz, Cubilguitz, Tamahu,

Zapote, Pantaleon, El Tumbador (Champion); Nicaracv, Chontales (Janson) ; PANAMA,

Volean de Chiriqui (Champion).—Cotomsia, Cartagena 1; BRAZIL.
A somewhat variable species as regards size and colour ; small pallid examples have,

as might be expected, the elytra more lightly punctate-striate.
An example of average size from Volcan de Chiriqui is figured.

168 HETEROMERA.

ZESYMNUS.

Mentum small, trapeziform, truncate in front, the anterior angles acute; inner lobe of the maxille armed with
a distinct tooth at the apex; last joint of the maxillary palpi securiform, that of the labial palpi stout and
truncate at the apex; mandibles bifid at the apex ; antenne about reaching to the base of the prothorax,
distinctly widening outwardly, the third to the fifth joints widening a little and almost equal in length, the
sixth wider and subtriangular, the seventh to the tenth broad and transverse, the eleventh the width of,
but much longer than, the tenth, and bluntly rounded at the apex ; head long, rather narrow, somewhat
deeply sunk into the prothorax, unarmed and similar in both sexes, the antennary orbits but little swollen,
gradually converging anteriorly, and impinging on the eyes behind, the epistoma broadly truncate ; eyes
large, transverse oval; prothorax rather broader than long, the lateral margins prominent, the base
strongly bisinuate, the angles prominent though obtuse; scutellum large, scutiform ; elytra long, slightly
rounded at the sides, sinuate at the base, closely embracing the prothorax, regularly punctate-striate,
somewhat broadly margined at the sides from the base to the apex (as in Ulosonia) ; legs smooth, slender ;
the intermediate and posterior tibie in the male longer and slightly curved inwardly ; tibial spurs small ;
the middle coxe without visible trochantin; tarsi very sparingly clothed with hair beneath, rather short
and stout, the last joint of the posterior pair rather longer than the two following joints united ; pro-
sternum subhorizontal, the apex slightly produced and received by the concave mesosternum ; epipleurse
broad, extending to the apex of the elytra.

A single species from Mexico, not very closely allied to any other described genus; it
is perhaps nearest to a North-American species (described under the name of Metaclisa
marginalis, by Dr. Horn) and Cyneus, but with the extended lateral margin of the elytra
of Ulosonia.

1. Aisymuus nitidus. (Tab. VII. fig. 23,4; 234, labium; 23 6, maxilla and
maxillary palpus. )

Oblong ovate, reddish brown or piceous black, shining. Head rather coarsely and sparingly punctured, the
epistoma slightly impressed on each side ; prothorax gradually narrowing anteriorly, widest a little before
the base, the disc transversely impressed just before the base (the impression bounded on each side by a
shallow oblique fovea), the anterior angles broadly produced and prominent, the surface sparingly and
not very finely punctured ; elytra wider than the prothorax at the base, slightly rounded at the sides,
widest about the middle, coarsely but shallowly punctate-striate (the punctures rounded), the interstices
flat and very evidently though sparingly punctured; beneath shining, sparingly and finely punctured ;
legs and antenne reddish brown.

Length 6 millim. (¢ 2.)

Hab. Mexico, Cordova (Sal/é).
Four examples.
MOPHIS.

Mentum small, trapeziform, deflexed on each side; apex of the outer lobe of the maxille produced into a blunt
tooth, the inner lobe armed on the inner side with short sete ; last joint of the maxillary palpi securiform,
that of the labial palpi short ovate; ligula prominent, exserted ; mandibles bifid ; antenne about reaching
to the base of the prothorax, very gradually widening outwardly, the third joint nearly one and a half
times as long as and a little narrower than the fourth, the fifth to the tenth distinctly wider than the fourth,
decreasing very slightly in length and feebly triangular, the seventh to the tenth subtransverse, the eleventh
the width of but longer than the tenth, and bluntly rounded at the apex; head deeply sunk into the pro-
thorax, unarmed and similar in both sexes, the antennary orbits a little swollen and only slightly impinging
on the eyes, the epistoma fairly well defined and deeply emarginate in front; eyes rather large, oblique,

MOPHIS. 169

extending laterally a little beyond the antennary orbits; prothorax transverse, narrowing anteriorly, the
sides distinctly margined (in one species, M. marginicollis, thin and slightly expanded), the base bisinuate,
narrowly margined, and with an oblique fovea on each side ; scutellum scutiform ; elytra distinctly wider
than and fully three times as long as the prothorax, somewhat broadly margined, slightly rounded at the
sides, regularly punctate-striate, with a short scutellar stria; legs long, slender, smooth; tibial spurs
small; tarsi long and slender, the first joint of the hind pair much longer than the two following joints
united ; prosternum narrow, the apex slightly deflexed and produced ; mesosternum feebly concave in front ;
metasternum longitudinally impressed ; intercoxal process triangular ; anterior coxe subtransverse ; middle
cox with an indistinct trochantin, the cavities slightly open externally ; epipleure abruptly ending a little
beyond the last ventral suture.

This genus includes three species from Central America. Mophis might perhaps
be almost equally well placed in the group “ Diaperides;” the eyes, however, though
large, are only feebly convex, and the trochantin of the middle cox is scarcely visible.
The species are found under bark.

1. Mophis marginicollis. (Tab. VIII. fig. 3.)

Oblong ovate, depressed, dark reddish brown or black, slightly shining. Head closely and coarsely punctured,
the epistoma broad and slightly convex and defined laterally by a longitudinal impression; prothorax
strongly transverse, rounded at the sides, broadest a little before the base, the sides thin and slightly
expanded, the lateral margins broadly impressed within and very prominent, the anterior angles prominent
but obtuse, the hind angles subrectangular, the base with an oblique fovea on each side (often connected
by a shallow transverse sinuous impression), the surface rather coarsely and somewhat closely punctured,
the margins often paler; elytra regularly and rather coarsely punctate-striate, the interstices very feebly
convex and very evidently and somewhat closely punctured, the suture and shoulders often paler ; beneath
reddish, shining, finely and not very closely punctured ; legs reddish.

Length 53-63 millim. (¢ 9.)

Hab. Guatema.a, Capetillo, Calderas 6000 feet, Quiche mountains 7000 to 9000 feet
(Champion).
Many examples. This somewhat immature-looking species may be known by the

thin and slightly expanded lateral margins of its thorax; I met with it rather
commonly under bark of various trees. in the forests at elevations of from 5000 to

9000 feet.
2. Mophis affinis.

Closely allied to J. marginicollis, and differing as follows:—Head more finely, not so closely, and more equally
punctured, the epistoma not so well defined posteriorly ; prothorax more finely, more closely, and not
so deeply punctured, the sides not expanded; elytra more shallowly punctate-striate, the interstices flat
and punctured as in M. marginicollis; beneath almost black, shining, sparingly and finely punctured ;
legs reddish.

Length 6 millim.

Hab. Mexico, Jalapa, Oaxaca, Las Vigas (Hoge).

Four examples.

3. Mophis aterrimus.
Form of UM. affinis, and differing as follows :—Deep black; the prothorax distinctly narrower, longer, and less
transverse, the basal fovese shorter and more abruptly defined anteriorly, the surface (and also that of the

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, June 1886. ZZ,

170 | HETEROMERA.

head) similarly punctured ; elytra more deeply and not so finely punctate-striate, the interstices similarly
punctured; legs and antenne reddish brown.
Length 6 millim.

Hab. Mexico, Jalapa (Hége).

One example.

Group DIAPERIDES..

‘Species of this group are found in almost every part of the globe; the “ Diaperides,”
however, are far more numerous in tropical regions, more especially in the New World.
A large number of species inhabit Central America.

The “ Diaperides” approach very closely to the ‘“‘ Ulomides;” the two groups indeed
are connected by such genera as Mophis, Hsymnus, &c. The large number of species
are contained in very few genera; certain of these, Diaperis, Arrhenoplita, and Platy-
dema, are very widely distributed ; others, Liodema, Stenoscapha, Cosmonota, Hapsida,
and Gonospa, are confined to the New World. Some few new genera, mostly containing
_ single species, have been required for the reception of the Central-American represen-
tatives of this group; one of these (Lelegeis) is remarkable for the great dilatation
of the first joint of the anterior tarsi; another (Paniasis) has the first joint of the
two front pairs of tarsi similarly dilated. In Laporte and Brullé’s monograph of the
** Diaperide ” (Ann. des Sciences Naturelles, xxiii. pp. 325-410) only a single species
(Platydema fuliginosum) is noticed from our country. Subsequent writers, Mots-
choulsky (Bull. Moscou, xlvi. part 1, pp. 466-482), and Chevrolat (Petites Nouv. Ent.
ii. pp. 170-243, and Comptes Rendus de la Soc. Ent. Belg. xxi. pp. xcvii—clii) have,
however, described or briefly diagnosed very many from Central America. These
authors, in describing the Diaperide of their own and other collections, scarcely refer
to previous writers on the subject, the result being, in numerous cases, merely to add
to the synonymy, many of the species described by them as new being previously known.
It is perhaps to be regretted that Chevrolat thought fit to publish the greater part of
his descriptions in such a periodical as ‘ Petites Nouvelles Entomologiques,’ or, indeed,
that he published such brief descriptions at all.

To increase the difficulty of satisfactorily determining these insects, many of the
species have been described upon very insufficient material, upon single and often
mutilated or immature specimens. Many of Chevrolat’s species (and Motschoulsky’s
also) are quite impossible to recognize without seeing the types; fortunately for our
purpose a good many of these are contained in the collections of M. Sallé and Mr. F.
Bates, and I have in consequence been able to satisfactorily identify the majority of the
described Central-American species. Many of the opaque species of Platydema have ©
the upper surface clothed with a sort of velvety pile, which more or less obscures the

sculpture; all these seem to grease very readily, and require to be thoroughly cleaned
before they can be critically examined.

CORTICEUS. . 171

I have not yet seen Alphitophaqus, Scaphidema, or Pentaphyllus from our country,
Senera represented in North America as well as in Kurope; the Central-American species
of Scaphidema described by Chevrolat are erroneously ascribed to that genus, and belong
mostly to Iiodema.

In many of the genera the antennal joints are more or less serrate within; in some
cases the outer four, five, or six joints forming a club. The eyes are often very
' large and oblique, and invariably project beyond the antennary orbits; the trochantin
is always distinct. In Ziodema and Stenoscapha the mesosternum is broadly produced.
Certain species of Arrhenoplita (=Lvoplus, Leconte) superficially resemble Peneta of
the preceding group.

_ The Eastern genus Ceropria, numerous in species, would appear in great measure to
replace Platydema in the tropical regions of the Old World.

By far the greater majority of our species are found under bark, or in fungoid growths
(in which the earlier stages of these insects are passed) attached to decaying or dead
trees, often in great numbers; others, Hapsida and Gonospa, on herbage or in the
curled-up still-attached leaves of fallen trees in forest clearings. The humid forest-
regions of Central America are especially rich in species of “ Diaperides.”

\
CORTICEUS.

Corticeus, Piller & Mitterpacher, Iter per Poseganam Sclavoniz, p. 87 (1783) ; Crotch, Trans. Ent.
Soc. 1870, pp. 46, 47.

Hypophleus (Hellwig), Fabricius, in Schneider’s Neu Mag. Ent. i. 1. p. 24 (1791); Ent. Syst. i.
p- 500; Mulsant, Col. de France, Latigénes, p. 250; Lacordaire, Gen. Col. v. p- 838; Horn,
Rev. Ten. of America north of Mexico, p. 386.

Species of this genus have been described from Europe, North and South America,
Mexico, the Cape Verde and Canary Islands, &c.

The different species are found beneath sappy bark.

We have to record six from our country, of which four are now described, as it is
believed, for the first time.

1. Corticeus rufipes? (Tab. VIII. fig. 4,¢.)
Hypophleus rufipes, Fabr. Syst. Eleuth. ii. p. 558; Lacord. Gen. Col. v. p. 839, nota’.

Hab. Mexico (coll. Oberthiir, F. Bates), Teapa, Playa Vicente (Sallé), Cordova
(Hoge); British Honpuras, Belize, R. Sarstoon (Llancaneaux); Guaremaua, El Tum-
bador, El Reposo, Las Mercedes, Pantaleon, Mirandilla (Champion); Nicaragua, Chon-
tales (Belt).—VunezveLa, Cumana, Caracas (coll. Oberthiir); Braziu!, Rio Janeiro.

A common species in Central America, though not yet received from Costa Rica or
the State of Panama. Examples from Brazil and Venezuela agree perfectly with those
from Mexico and Guatemala.

ZZ 2

172 HETEROMERA.

This widely distributed Tropical-American species seems to be the Hypophleus rufipes
of Fabricius; it may be known by its comparatively very large size (7-10 millim.), the
acutely produced anterior angles of the thorax, the very prominent humeri, the somewhat
convex interstices, the swollen inner apices of the femora, and the slightly pubescent
under surface. In both sexes the inner edges of all the tibiz are clothed with short
fulvous hairs; in the male the tibie are rather longer, sinuous within and more dilated
towards the apex, and the hairs longer than in the female.

Labelled H. bacculus, Deyr., in the Sallé collection.

2. Corticeus mexicanus.
Corticeus mexicanus, Reitter, Verh. zool.-bot. Ges. Wien, xxvii. p. 191’.
Hab. Muxico! (coll. Oberthiir, F. Bates), Cordova (Sallé), Jalapa (Hoge); GUATEMALA,
Cerro Zunil, Las Mercedes, Zapote (Champion) ; Nicaraaua, Granada (Sallé); Panama,
Bugaba, Volcan de Chiriqui (Champion).—CotomB1a (coll. F. Bates).

A generally distributed and locally abundant species in our region ; found beneath
sappy bark, often in company with C. rufipes. |

C. mexicanus may be readily known from C. rufipes by the comparatively shorter
thorax, the straighter base of the elytra, the flat interstices, the produced outer apical
angle of the anterior tibie, &c.; it varies greatly in size, from 4 to 7 millim. ; allied, but
more distantly, to the European C. castaneus, Fabr., and also to C. eylindricus, Reitter,
from Colombia.

I am indebted to M. Réné Oberthiir for the loan of the types of this species.
Labelled Hypophleus flavipes, Chevr., in the Sallé collection.

3. Corticeus longicornis.

Subcylindrical, moderately convex, black, shining. Head very closely and confluently punctured, broadly and
shallowly excavate between the cyes, black, the oral organs red; antenne long (reaching to beyond the
middle of the prothorax), setose, the joints not very closely articulated, black, the basal and apical joints
more or less red; prothorax very feebly rounded at the sides, slightly narrower behind, the base and apex
almost straight, the angles distinct, the surface closely and not very finely punctured; elytra truncate at
the base, the humeri distinct, finely and very distinctly punctured, the punctures arranged in close irre-
gular rows; legs dark reddish brown, the outer apical angle of the anterior tibie angularly produced ;
beneath closely and coarsely punctured.

Length 4 millim.

Hab. Mexico (coll. F. Bates).

Two examples.

4, Corticeus puncticollis.

Cylindrical, convex, black, shining. Head in the female coarsely and closely punctured, in the male the
epistoma smoother and convex, and the intraocular space transversely and narrowly raised in the

CORTICEUS, ; 173

middle, the anterior margin and the oral organs more or less red; antennee short, the seven outer joints
moderately widened, the joints somewhat closely articulated, the two basal joints and the apical one
ferruginous, the rest piceous; prothorax transversely convex, coarsely and rather closely punctured, the
sides slightly rounded, about equally narrowed at the base and apex, the base and apex almost straight, .
the anterior angles obtuse, the posterior angles distinct ; elytra truncate at the base, the humeri rounded,
finely and very distinctly punctured, the punctures arranged in close irregular rows; legs reddish brown,
the tibize darker, the outer apical angle of the anterior tibie angularly produced.
Length 33-4 millim. (¢ 2.)

Hab. GuateMata, Capetillo (Champion).

Two examples. This species may easily be known from C. longicornis by the shorter
antennee, the differently formed head, and the thorax more convex and more rounded
at the sides. .

5. Corticeus pallidipennis. (‘lab. VIII. fig. 5.)

Subcylindrical, convex, black, shining. Head rather coarsely and somewhat closely punctured, black, the
anterior margin and the oral organs more or less red; antenne stout, the seven outer joints very broad,
the four basal ones narrow, the two basal joints red, the rest black, the joints not ciosely articulated ;
prothorax finely and sparingly punctured, the apex almost straight, the base broadly but feebly rounded,
the angles distinct ; elytra not twice the length of the prothorax, the base truncate, confusedly and finely
punctured, sordid yellow or testaceous, a large triangular scutellar patch continued narrowly along the
suture to the apex, and rarely the extreme apex and lateral margins, piceous or black; legs light ferru-
ginous, the tibiz and femora often darker, the outer apical angle of the anterior tibi angularly produced ;
beneath shining, very coarsely and closely punctured anteriorly, the metasternum and ventral surface
smoother and sparingly punctured.

Length 3-32 millim.

Hab. Mexico, Cordova (Sallé); GuatEMaua, near the city, Capetillo, Zapote, Cerro
Zunil (Champion).

I met with this species in great profusion in various parts of Guatemala, beneath
sappy bark; three examples only from Mexico.

6. Corticeus crassicornis. (Tab. VIII. fig. 6.)

- Subcylindrical, moderately convex, deep black, very shining. Head finely and sparingly punctured; antenna
very stout, long, the joints not closely articulated, the seven outer joints very broadly widened, the basal
joint ferruginous, the rest deep black ; prothorax slightly rounded at the sides, narrowing a little ante-
riorly, widest about the middle, the base and apex almost straight, the anterior angles very obtuse, the
posterior arigles rectangular, the surface finely and distantly punctured; elytra comparatively broad and
short, a little wider than the prothorax at the base, if anything widest behind the middle, the base almost
straight, confusedly, finely, and sparingly punctured ; legs thin, black, the cox, knees, and tarsi more or
less ferruginous, the outer apical ‘angles of the anterior tibize produced into a sharp tooth ; beneath deep
black, very shining, very closely and coarsely punctured anteriorly, the metasternum and ventral surface
very sparingly and distantly punctured.

Length 3-3} millim.

Hab. Guatemaa, Capetillo (Champion).

Eight examples. A comparatively short and broad species, with very stout antenne ;
the upper and under surfaces entirely deep black, and very shining.

174 . HETEROMERA.

PALORUS.
Palorus, Mulsant, Col. de France, Latigénes, p. 250.

This genus contains a single cosmopolitan species, now introduced into many distant —

parts of the world.

1. Palorus melinus.

Hypophieus melinus, Herbst, in Fuessly’s Archiv, v. p. 37, t. 21. figg. B. 0.

Hypophleus depressus, Fabr. in Schneider’s Neu Mag. Ent. i. 1, p. 25.

Ips unicolor, Oliv. Ent. ii. 18, p. 12, t. 2. f. 8. .

Hypophleus (Palorus) depressus, Muls. loc. cit. p. 250; Jacq. Duval, Gen. Col. d’Europe, i. p. 181,
t. 75. £. 874,

Hab. Nortu America, Texas.—Mexico, Minas Viejas (Dr. Palmer).—Evrops, &c.

An introduced species.

DIAPERIS.
Diaperis, Geoffroy, Ins. d’environs de Paris, i. p. 337 (1762); Laporte & Brullé, Ann. des Sciences

Naturelles, xxiii. p. 833; Mulsant, Col. de France, Latigénes, p. 205; Lacordaire, Gen. Col.
v. p. 801, Horn, Rev. Ten. of America north of Mexico, p. 879.

Representatives of this well-known genus are found in Europe, Algeria, Japan, Ceylon,
the United States, and the northern part of Central America.

The different species are found in boleti, and also under bark, often in the oréatest
profusion.

1. Diaperis maculata.
Diaperis maculata, Oliv. Ency. Méthod. vi. p. 273°; Ent. i. 55, p. 5, t. 1. fige. 2a, 6.
Diaperis hydni, Fabr. Syst. Eleuth. iu. p. 585°; Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 335‘;
Horn, Rev. Ten. of Am. north of Mexico, p. 379°.
Diaperis hydactina, Fabr. Ent. Syst. Suppl. p. 178°.
Diaperis suturalis, Chevr. Petites Nouv. Ent. il. p. 170%.
Hab. Norra America 12346, United States °.—Mexico? (coll. F. ates), Orizaba
(Sallé); Guatemaua, San Joaquin (Champion).

Central-American specimens agree perfectly with those from the United States.

This is one of the numerous species described by Chevrolat, without the slightest
reference to previous writers; it is abundant, according to Dr. Horn, in the middle and
Eastern States.

An allied species, D. rufipes, Horn, is found under cotton-wood bark in Arizona, not
far from our northern boundary.

ARRHENOPLITA. 175

ARRHENOPLITA.
Oplocephala, Laporte & Brullé, Ann. Sciences Nat. xxiii. p. 338 ; Mulsant, Col. de France, Latigénes,
p- 215; Lacord. Gen. Col. v. p. 302 (nomen preoc.).
Hoplocephala, Horn, Rev. Ten. of Am. north of Mexico, p. 879; Gemm. & Harold, Cat. vii. p. 1949.
Arrhenoplita, Kirby, Faun. Am. Boreal. p. 235.
Evoplus, Leconte, New Sp. Col. p. 128.

Numerous species of this genus have been described from the temperate and tropical
regions of both hemispheres, the Antilles, Tahiti, &c.; two inhabit Europe, and several
are found in the United States; none have hitherto been recorded from our country.

Evoplus, Leconte, is connected by numerous intermediate forms, and cannot be main-
tained as distinct from Arrhenoplita. One only of our species (A. dicornis) has the
upper surface of a metallic greenish colour; the head in the male is usually armed
with two erect tubercles or horns, in one or two species, however, these are almost
obsolete; a few small forms have the elytra confusedly punctured, and without the
usual rows of coarser impressions.

The genus is well represented in Central America by thirteen species; the name
Hoplocephala being preoccupied in Reptilia, I adopt Arrhenoplita of Kirby. The
different species are found in fungi and beneath bark, often in great profusion.

* Elytra with regular rows of punctures.

1. Arrhenoplita bicornis.

Hispa bicornis, Fabr. Gen. Ins. Mant. p. 215 (1777) *; Mant. Ins. i. p. 47.
Diaperis bicornis, Oliv. Ent. iii. 55, p. 6. t. 1. figg. 4a, 5°.
? Blaps metallica, Palisot de Beauv. Ins. Afr. et Am. p. 139, t. 306. f. 2°.
Arrhenoplita bicornis, Kirby, Faun. Bor. Am. iv. p. 235 *.
Oplocephala virescens, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 341°.
Hoplocephala bicornis, Horn, Rev. Ten. of Am. north of Mexico, p. 380°.
Oplocephala gracilis, Motsch. Bull. Moscou, xlvi. part 1, p. 467’. ,

Hab. Norra America!?, United States?45¢7,—Mexico, Tuxtla, Cordova (Salié),
Jalapa, Esperanza (Hoge); Britisa Honpuras, Belize (coll. F. Bates, Blancaneaux), R.
Hondo (Blancaneaux); GuatemaLa, Zapote (Champion)

Central-American examples are greenish-neous in colour, rarely tinged with blue in
some few individuals from Mexico; they are much larger (4-5 millim.) than those from
the United States (34-4 millim.), and the males have stouter horns; other differences
of importance I fail to find. This species is abundant in the United States, and
equally so in the northern part of our country ; it does not extend south of Guatemala.
Poorly-developed males have the usual cephalic horns represented by two stout conical

tubercles only.

176 HETEROMERA.

2. Arrhenoplita ferruginea. | .
Evoplus ferrugineus, Lec. New Sp. Col. p. 1287; Horn, Rev. Ten. of Am. north of Mexico, p. 366’.
Oplocephala castanea, Motsch. Bull. Moscou, xlvi. part 1, p. 467 °.
Hab. Norta America, Louisiana !?%, New Orleans *.—Mexico, Cordova, Vera Cruz
(Sallé), Jalapa (Hoge); Guaremata, San Gerénimo, Duefias (Champion).—ANTILLES,
Cuba (coll. F. Bates).

Many examples, agreeing well with others from the United States. In fully-deve-
loped males of this insect the head is broadly and deeply excavate on each side behind
the eyes (instead of in the centre of the vertex, as in some of the allied species), and
armed with two long, stout, curved horns; in poorly-developed individuals of the same
sex (taken in company with the others) the horns are represented by stout conical
tubercles, and the head is not excavate behind the eyes.

3. Arrhenoplita clavicornis. (Tab. VIII. fig. 7, 3.)

Oblong ovate, strongly convex, reddish testaceous, shining. Head in the male finely and sparingly punctured,
the epistoma triangularly extended on each side in front, the antennary orbits thin, slightly expanded,
and rounded at the sides, armed between the eyes with two long, curved, suberect, converging horns, and
the vertex deeply excavate in the middle; in the female coarsely and subrugosely punctured, transversely
impressed in front, and the intraocular space slightly raised on each side just within the eye; antenne with
the six outer joints strongly widened, the fourth and fifth joints but little wider than the third; prothorax
transverse, widening from the rounded anterior angles to beyond the middle, thence rounded to the base,
the hind angles very obtuse, the surface coarsely and rather closely punctured, the base with a shallow
oblique fovea on each side; elytra rather short, subparallel to beyond the middle, thence rounded and
narrowing to the apex, with regular rows of coarse shallow punctures, the interstices convex outwardly and
comparatively coarsely and rather closely punctured, more testaceous in colour than the head and thorax ;
legs and antenne testaceous; beneath shining, the ventral surface darker and confluently and rather

coarsely punctured.
Length 3-4 millim. (¢ 2.)

_ Hab. Mexico, Cordova (Sallé).

Six examples. Smaller and comparatively shorter in form than A. ferruginea ; the
antenne with the six outer joints only widened; the cephalic horns in the male erect
and converging, the thorax less rounded at the sides and narrowing from the middle to
the apex, the interstices of the elytra much more coarsely punctured. This is one of
five allied species found by M. Sallé at Cordova.

4, Arrhenoplita oblonga?
Hoplocephala oblonga, Chevr. Compt. Rendus de la Soc. Ent. Belg. xxi. p. xevii.’

Hab. Nicaracva, Chontales (Belt).—Brazit, Parahyba !.
Four examples (three female and one male) of an Arrhenoplita from Chontales are

possibly referable to A. oblonga, Chevr.: the head in the male being similarly armed,
€.g. with two short conical horns. ‘

ARRHENOPLITA. | 177

These specimens from Chontales are equal in size to the smallest individuals of the
variable and allied A. armata, Lap. and Brullé, of South America. The head in the
male is armed with two short, stout, conical horns, the vertex deeply but not broadly
excavate in the middle, the epistoma swollen and with a minute prominence on each
side on the anterior margin, the surface finely and sparingly punctured ; in the female
more closely and more coarsely punctured, more deeply excavate anteriorly, the intra-
ocular space a little raised and swollen on each side and shallowly impressed in the
middle. The prothorax and elytra are formed much as in A. armata, the elytra (the
interstices especially) are, however, rather more finely punctured. Compared with
A. armata the head in the female is more sparingly punctured, the intraocular space
flatter in the middle and with a distinct shallow fovea in the centre; the male with
much shorter horns, the epistoma more swollen, the excavation on the vertex smaller.

5. Arrhenoplita lecontii.
Evoplus lecontii, F. Bates, Ent. Monthly Mag. ix. p. 233 (3).

Hab. Mexico, Cordova (Sallé)—Cotoms1a }.

Both sexes of this species were found by M. Sallé. In the single female example
the head is broadly transversely excavate, the intraocular space transversely raised
(terminating in a rounded prominence on each side), the epistoma swollen and sharply
defined ; the thorax narrower and less transverse than in the male. Compared with
the type, a male, of A. lecontit, the Mexican example of the same sex has the cephalic
horns rather longer and more curved towards the apex. Mexican examples are of a

lighter castaneous colour than the Colombian type.

6. Arrhenoplita lutea.
Hoplocephala lutea, Chevr. Compt. Rendus de la Soc. Ent. Belg. xxi. p. xevil.

Hab. Mexico, Esperanza, Jalapa (Hége).— VENEZUELA".

Examples of both sexes of a species of this genus, sent by Herr Hoge from Mexico,
agree very nearly with the description of A. Zutea. The head in the male has two short
conical tubercles (sometimes connected by a feeble sinuous transverse elevation), and
the epistoma swollen and with scarcely any indication of a prominence on each side on
the anterior margin; in both sexes the head in front is deeply semicircularly excavate ;
the thorax in the male is scarcely broader than in the female, and (as usual) the sides
are more rounded and a little constricted just before the base. Compared with the
same sex of A. castanea, F. Bates, from Colombia, the male may be readily known by
the different structure of the head; the head, indeed, of the male of the Mexican insect
‘somewhat resembling the female of A. castanea, but with stronger tubercles between

the eyes, and without fovea in the middle.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, June 1886. 9AA

178 HETEROMERA.

7. Arrhenoplita distans. (Tab. VIII. figg. 8,3; 8a, head from the front.)

Oblong ovate, subparallel, strongly convex, castaneous, very shining. Head broad; in the male almost
impunctate, broadly excavate anteriorly, the epistoma with a small rounded prominence on each side in
front, the antennary orbits swollen and raised, the eyes very widely separated, the intraocular space
armed on each side with a stout straight erect horn (the broad space between flat), the vertex not
impressed; in the female finely and distantly punctured, broadly excavate anteriorly, the epistoma
slightly swollen, and sometimes with a small prominence on each side as in the male, the front broadly
flattened (the depression limited behind by an oblique extension of the small rounded prominence placed
on each side of the broad intraocular space); antenn with the eight outer joints widened, ferruginous 5
prothorax transverse, the base and apex bisinuate, the anterior angles prominent, the hind angles broadly
rounded, strongly’ margined at the sides, the sides in the male rounded, in the female straighter and
widest a little beforé the base, moderately convex (more strongly and transversely in the male), the
surface finely and sparingly punctured; scutellum large, subtriangular; elytra with regular rows of
shallow, distantly placed, coarse punctures, the interstices flat, sparingly and finely punctured, the apices
slightly acuminate; legs and antenne pale ferruginous ; beneath shining, light castaneous, sparingly and
finely punctured ; epipleurs not extending to the apex of the elytra.

Length 52-63 millim. (¢ @.)

Hab. Mexico, Cordova (Sal/é).

Five examples. This shining castaneous species may be known from its allies by the
erect cephalic horns of the male being separated by a very wide, smooth, and flat space ;
the female by the broad flattened frontal depression, limited behind by an oblique
extension of the small prominence placed on each side just within the widely
separated eyes.

8. Arrhenoplita obsoleta.

Elongate oval, subparallel, strongly convex, varying in colour from castaneous to black, shining. Head in the
male rather coarsely and closely punctured, broadly excavate anteriorly, the: epistoma swollen, sharply
defined, and usually armed on each side in front with a minute rounded prominence, the intraocular space
with a small rounded prominence on each side just within the eye (much as in the females of some of the
allied species) and often with a small impunctate space in the middle; in the female more coarsely and
closely punctured, transversely excavate anteriorly, the epistoma less swollen than in the male; antenne
with the eight outer joints widened; prothorax transverse, widening from the rounded anterior angles to
beyond the middle, thence rounded to the base, the apex almost straight, the base bisinuate, the surface
rather coarsely and not very finely punctured; elytra with regular rows of closely placed, rather coarse,
shallowly impressed punctures, the interstices rather coarsely and sparingly punctured and with traces of
shallow transverse wrinkles; legs and antenne light ferruginous; beneath shining, closely, confluently,,
and irregularly punctured.

Length 33-5 millim. (¢ 9.) .
Hab. Mexico, Cordova, Vera Cruz (Sallé), Jalapa (Hoge).

Many examples. The head in the male is formed much as in the female of
A. amazonica, ¥. Bates, an insect closely allied to the present species; the female
does not differ greatly from the male. In A. obsoleta we have but a very slight
development of the male cephalic armature, the horns being represented by very small
tubercles, such as we observe in the. females of most of the other species of the
genus.

ARRHENOPLITA. 179

9. Arrhenoplita picea.
Oplocephala picea, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 3447.

Hab. Guatemata, San Gerénimo (Champion).—Cotomsta 1, Cartagena (coll. F. Bates).

Examples of both sexes were captured at San Gerénimo. The head in the male of
this species is armed with two short, very stout horns, and the epistoma with a distinct
conical tubercle in the middle; the latter character is not mentioned by the describer,
Our insect agrees perfectly with a male example, from Cartagena, contained in Mr, F.
Bates’s collection. . |

10. Arrhenoplita nigricornis.

Elongate ovate, moderately convex, reddish brown, shining. Head transversely excavate anteriorly, coarsely
but not closely punctured, the epistoma swollen and sharply defined; antennee with the eight outer joints
widened, the three basal joints red, the extreme apex of the last joint ferruginous, the rest deep black ;
prothorax transverse, widest about the middle, feebly rounded at the sides, the base and apex bisinuate,
the anterior angles rounded, the surface rather coarsely but not very closely punctured; scutellum scuti-
form ; elytra long, distinctly broader than the prothorax, with rows of very coarse, deep, not very closely
placed punctures, the interstices very finely and distantly punctured, of a clearer and more uniform colour
than the head and prothorax ; legs and palpi light ferruginous.

Length 43 millim. ( 9.) |

Hab. Guatemata, San Gerénimo (Champion).

The elytra in this small species are comparatively long, distinctly broader than the
thorax, and with rows of very coarse punctures; in the single individual before me
they are broadly compressed on each side before the middle, which, however, is probably
due to accidental circumstances. A. nigricornis is not nearly allied to any known
species, though perhaps nearest to A. picea.

** Elytra confusedly punctured.

11. Arrhenoplita inermis.

Oblong ovate, strongly convex, castaneous, finely pubescent, shining. Head rather coarsely and closely
punctured, transversely excavate anteriorly, the intraocular space slightly raised and swollen on each
side just within the eye; antenne with the seven outer joints widened, the fourth joint a little wider
than the third; prothorax transverse, widest about the middle, the apex almost straight, the anterior
angles obtuse, the base bisinuate, the surface punctured like the head; scutellum triangular; elytra the
width of and a little rougher than the prothorax, closely, confusedly, and somewhat coarsely punctured,
with indications of numerous fine transverse wrinkles; legs, antennz, and palpi testaceous; beneath

shining, very closely and confusedly punctured and wrinkled.
Length 2? millim.
Hab. Guatema.a, Zapote (Champion).

Six examples. This is one of several small Central-American species allied to

A. bituberculata, Oliv. (an insect described upon examples supposed, according to
Chevrolat, to have been introduced in an exotic boletus into France, and possibly of

2 AA 2

180 _HETEROMERA.

South-American origin), all of which have confusedly punctured elytra, without any
indication of rows of coarser-impressions. In A. imermis the head appears to be
similarly formed, and unarmed in both sexes.

12. Arrhenoplita cioides. (Tab. VIII. fig. 9, 3.)

Elongate ovate, moderately convex, testaceous, finely pubescent, slightly shining. Head in the male finely
and sparingly punctured, the epistoma rather long and narrow and with a small triangular prominence on
each side in front, the vertex armed with two long stout horns (these project forwards in a line with the-

‘body, and their apices are thinner, slightly pointed, and curved downwards), the space between the horns .
transversely raised, the space immediately behind them broadly and deeply excavate, the front (if viewed
sideways) almost vertical; eyes small, oblique; antennz with the seven outer joints widened and more or
less triangular, the sixth to the tenth joints transverse, the fourth joint wider than the third ; .prothorax
transverse, widest about the middle, the apex almost straight, the anterior angles rounded, the base
bisinuate, the sides slightly rounded, the surface very closely and not very finely punctured; elytra the
width of the prothorax, but more confusedly, more shallowly, and not so closely punctured; legs and
antenne testaceous.

Length 23 millim. (¢.)

Hab. Panama, Caldera in Chiriqui (Champion).

One example. This insect superficially resembles a species of Cis.

13. Arrhenoplita pentaphylloides.

Ovate, moderately convex, testaceous, finely pubescent, slightly shining. Head very finely and closely punc-
tured, the epistoma well defined; in the male the vertex armed with two stout conical tubercles, and the
space behind the tubercles transversely and deeply excavate; eyes small, feebly emarginate; antenns.
gradually widening outwardly, the six outer joints of about the same form and width as in-the allied
species ; prothorax strongly transverse, the sides slightly rounded, widest a little before the base, the apex.
not deeply emarginate, the anterior angles rounded, the base bisinuate, the surface very closely and finely
punctured; elytra more confusedly and not so closely punctured and rather more shining than the pro-
thorax ; legs and antenn testaceous; beneath shining, finely and rather closely punctured.

Length 21-24 millim. (¢ 92.)

Hab. Guatemata, Cerro Zunil, Capetillo (Champion).

Numerous examples. This insect resembles the European Pentaphyllus testaceus,:
Hellw.; the eyes, however, though small, are feebly emarginate, and the antenne do.
not possess a loose five-jointed club, but have the joints gradually widened from the:
base. The eyes in this species and in A. cioides are much smaller and less coarsely
facetted than in A. bituberculata and A. inermis. All these small. forms, with con-
fusedly punctured elytra, are, however, very nearly allied in general structure to the
other and larger species with regular rows of elytral punctures.

SAPTINE.

Last joint of the maxillary palpi subtriangular; antenne gradually widening from the base, the four basal.
joints slender, the fourth joint but little shorter and scarcely wider than the third, the fifth and sixth
joints wider and subtriangular, the seventh distinctly broader than the sixth, the seventh to the tenth
decreasing in length, the seventh and eighth subtriangular, the ninth and tenth transverse, the eleventh
much longer than the tenth and bluntly rounded at the apex; head short, deeply sunk into the prothorax,,.

SAPTINE.—-PLATYDEMA, 181

the antennary orbits not extended, the epistoma short and not clearly defined; eyes not very large,
slightly oblique; prothorax convex, transverse, narrowing from the base; scutellum triangular ; elytra
convex, coarsely punctate-striate ; legs slender, the outer apical angles of the tibiee armed with a distinct,
fine tooth, the first joint of the posterior tarsi longer than the two following: joints united; prosternum
horizontal, triangularly produced, margined within, and received by the narrow and deeply excavate
V-shaped mesosternum ; epipleurs extending to the apex of the elytra; trochantin distinct; form oval,
convex.

A new genus is required for a small insect found in Mexico by Herr Hoge. The
structure of the head, antenne, &c. forbids association with Platydema; Saptine willbe
known from itsallies by the ovate, convex form, the slender basal joints of the antenne,
the deflexed anterior angles of the prothorax, and other characters given above.

1. Saptine ovata. (Tab. VIII. tig. 10.) |
Obovate, convex, bronze-black, shining. Head coarsely and rather closely punctured; antenne with the two
basal joints, and the apical one, ferruginous, the rest black; prothorax convex, rapidly narrowing from
the base, the sides rounded anteriorly, the anterior angles deflexed and rounded and not projecting out-
wardly, the apex broadly emarginate, the base strongly bisinuate and with a distinct oblique fovea on
each side, the surface regularly, somewhat. coarsely, and not very closely punctured; elytra the width
- of the prothorax at the base, widest in the middle, coarsely punctate-striate, the interstices feebly convex
outwardly and very finely and closely punctured; legs dark ferruginous ; beneath brownish black, shining,
with very coarse scattered impressions.
Length 3} millim.

Hab. Mexico, Jalapa (Hage).

One example.
PLATYDEMA.

Platydema, Laporte & Brullé, Annales des Sciences Naturelles, xxiii. p. 350 (1831) ; Mulsant, Col.
de France, Latigénes, p. 211; Lacordaire, Gen. Col. v. p. 304; Horn, Rev. Ten, of America

north of Mexico, p. 380.
Typhobia, Pascoe, Ann. & Mag. Nat. Hist. 4th ser. iii. p. 279.
Neomida, Motschoulsky, Bull. Moscou, xlvi. part 1, p. 476.
Histeropsis, Chevrolat, Petites Nouv. Ent. ii. p. 221 (1878).

This genus is well represented in the temperate and tropical regions of both hemi-
spheres, and contains a very large number of species. The metropolis of Platydema
is, however, in Tropical America, from whence many species are known. About fifteen
species inhabit America north of Mexico; from our country we now record no less than
forty-seven. |

Some of the species range over a very large extent of country, one or two extending
from Brazil to Mexico; others are altogether as local, and seem confined to a limited
area. Laporte and Brulleé (6p. cit.) enumerated fifty species, of which some four fifths
are from the New World, but one only is noticed from Central America. This number
has since been very largely added to by Chevrolat and Motschoulsky.

Chevrolat, in view of the great extent of the genus, which will undoubtedly require
extensive subdivision by future monographers, has proposed to include under the generic

182 HETEROMERA.

name Histeropsis (this itself to contain four groups) various species; and Motschoulsky
(loc. cit.), for a similar purpose, separates others under Neomida, a manuscript name in
itself highly objectionable, it having been already applied to numerous widely different
genera. I have not thought it necessary or advisable to adopt any of these so-called
genera. .

The smooth shining species have a different facies from the dull and opaque ones ;
the eyes are comparatively smaller, the epistoma often not clearly defined, &c., but
in general structure they agree. Two species (P. meaicanum and P. viriditinctum)
resemble somewhat in form the European P. dytiscoides.

Platydema is highly characteristic of the forest-regions of Tropical America, numerous
species abounding in many localities. The different species are found in fungoid
growths, on fallen timber, in which the earlier stages are passed, and in company with
representatives of other groups of “Tenebrionide,” and of the Erotylide and Endo-
mychidee, are everywhere to be met with.

The following table will assist in the recognition of the numerous Central-American
species :-—

Head tuberculate or horned in the male.
Intraocular space concave in the middle, a slender porrect horn on each
side in the male, longitudinally raised on each side in the
female; surface shining . . .. . . . . . excavatum.
Intraocular space in the male concave in the middle, and longitudinally
raised on each side, in the female slightly impressed; surface

opaque.
_ Elytra with angulated transverse paler bands . . . . . . . . wndatum,
rodriguezi.
Elytra dull black . 2. 2. 2. 1. 2 1 we we ee. hondurense.
Head unarmed in the male. .
Intraocular space distinctly impressed in the middle ; form more or less
obovate, depressed.
Upper surface shining, bronze black. . . soe ee we. viriditinctum.
Upper surface slightly shining, brownish black see ee ew mexicanum.
Intraocular space plane, or at most feebly impressed; form more or less
ovate.
Upper surface unicolorous, opaque.
Dull black, rarely dark ferruginous.
Form oblong-ovate or ovate . . . 1. 1 ss. 1 « agile, angulatum,

subquadratum, sobrinum, ferrugineum, fuliginosum, melancholicum.
Form rotundate .

ee ee ew ew we . -rotundatum,
rugiceps, oculatum.
Dark reddish brown, pruinose ; form rotundate. . . . . . nicaraguense.

Ferruginous ; form oblong-ovate. . . . . . . . . émmaculatum.

PLATYDEMA.

Upper surface maculated, opaque.
Form oblong-ovate.
Dull black above, a transverse red spot (sometimes
united at the suture) on each elytron

183

diophthalmum,

bimaculatum, fasciatum, submaculatum, transversum.

Dull black above ; elytra ferruginous, a black spot on
each . .

Dull black above ;
bands

Dull black above ;

Ferruginous ;

elytra with two transverse red
elytra clouded with red .
three black spots on each elytron
thorax black ;
black spots .

elytra black, with three streaks, an oblique spot
at the apex, and two fascie, red or flavous
Form ovate.

Brownish black ; thorax spotted; elytra with longi-
tudinal yellow and black interrupted streaks .

Testaceous ; thorax marked with black at the base;
one large and three small black spots on each
elytron . 2... ew ee ee ee

Reddish testaceous ; thorax spotted ; each clytron with
four large black spots . Loe

Brownish black ; elytra with two angulated transverse
testaceous bands

Form broad ovate.

Dull black above ; elytra with two angulated trans-
verse red bands :

Dull black above; elytra red, each with about seven
rounded or longitudinal black spots (sometimes
united) Le Loe

Testaceous ; thorax marked with black a at the base ;
elytra with a broad angulated band behind the
middle (often divided), and three small black
spots on each . woe eee

Dull brownish black above ; elytra with two narrow

Ferruginous ; elytra red, with three

Red ;

(often interrupted) angulated reddish testaceous
bands . . Loe ee tee
Upper surface shining, more or less convex ; maculated or (rarely)
unicolorous.
Form oblong ovate or ovate.

Black ; thorax red, with a large transverse black spot ;
elytra with two angulated transverse testaceous
bands (not reaching the suture) Lee

Similar ; thorax almost entirely red; the base of the
elytra also narrowly testaceous

bisignatum.

. hoger.

monilicorne.
sexnotatum.

sexamaculatum.

fasciatocolle.

guatemalense.

ornatum.
pretiosum.

panamense.

tibiale.

15-maculatum.

nigromaculatum.

breve.

versicolor.

tricolor.

184 HETEROMERA.

Black ; elytra with two reddish testaceous ulated

transverse bands; antennz black, the two basal

joints ‘and the extreme apexred. - - - + : biplagiatum.
Similar ; thorax red at the sides ; antenne red. . maculipenne.
Thorax black, the sides testaceous ; elytra testaceous,

with black spots (each elytron usually with a broad

_ transverse patch behind the middle, a large oblique

apical spot, and two small spots at the base) . . dimidiatum.
Head black ; thorax testaceous, with two small spots,

and the base (partly), black; elytra testaceous,

part of the base, the suture, a broad transverse

mark (often divided) about the middle, and one

or two small spots, black . . . . . elegans.
Reddish testaceous ; thorax with three dark streak ; ;

each elytron with two spots near the base, and

several longitudinal streaks in the apical half, black lucens.
Reddish testaceous ; thorax with a broad black patch ;

each elytron with three very large spots, and the

scutellar region also, black. . . . . . ~ « cordovense.
Red,immaculate . . . 2. ) + ee ee unicolor.

Form broad ovate.

Reddish testaceous ; thorax with six small black spots ; ;

each elytron with three large and two small black

spots... ee ee ee ee ee ee ORUSIUM.

1. Platydema excavatum. (Tab. VIII. fig. 11, 3.)

Diaperis excavata, Say, Journ. Acad. Phil. iii. p. 267 (1824) *; Horn, Rev. Ten. of Am. North of
Mexico, p. 381 ; Leconte, Complete Writings of Thomas Say, ii. p. 157.

Platydema tuberculata, Lap. & Brullé, Ann. Sciences Nat. xxii. p. 852° (1831).

Platydema tuberculatum, Chevr. Petites Nouv. Ent. ii. p. 210 (2).

Platydema fraternum, Chevy. loc. cit. p. 210°.

Platydema parvulum, Casey, Contrib. to the Descript. and System. Col. of North America, part 1,
p- 504; Horn, Ent. Americana, i. p. 111 (1885).

Hab. Nort America, United States !4.—Mexico (coll. F. Bates), Vera Cruz, Cordova
(Sallé), Jalapa, Esperanza, Cerro de Plumas (Hoge); British Honpuras, Belize, R.
Sarstoon (Blancaneauz); Guatemata, Zapote, Capetillo, Purula (Champion) ; Nica-

ragua, Chontales (Janson); Panama, Volcan de Chiriqui (Champion).—CotomBia (coll. F.
Bates).— ANTILLES, Cuba *, Santo Domingo ®.

A wide ranging species, common throughout our region, and extending southwards
to Colombia; it is found abundantly, according to Dr. Horn, in the United States, and
is also recorded from the Antilles. Most of the specimens from Guatemala southwards |
are considerably broader and larger than those from more northern localities, those
from British Honduras are, however, the size of Mexican examples.

PLATYDEMA. 185

I have examined about 200 individuals, including specimens from the United States,
and find every intermediate form between the large and small examples. P. fraternum,
Chevr., from Santo Domingo, of which I have a typical example before me, is merely
small P. excavatum ; it is identical with specimens from the United States. Allied
forms are found in Australia (P. striatum, Montr.,=P. oriticum, Pascoe), in Madagascar
(P. fronticorne, Klug), in Japan (P. nigrowneum, Motsch.), &c.

The head in the male of P. excavatum is furnished with two thin porrect horns,
placed one on each side of the intraocular space and just within the eyes, the same
part in the female being longitudinally raised; in both sexes there is a deep excavation
(deepest in the male) between the elevations.

We figure a well-developed male from the Volcan de Chiriqui.

2. Platydema undatum. (Tab. VIII. figg. 13, ¢; 14, var. 2.)
Neomida picta, Motsch. Bull. Moscou, xlvi. part 1, p. 480 (1873)*.
Platydema undatum, Chevr. Petites Nouv. Ent. ii. p. 194 (1878).

Hab. Mexico! (Stark ?, in coll. Bates), Vera Cruz, Orizaba (Saillé), Esperanza,
Jalapa (Hége); Britise Honpuras, Belize (Llancaneaux); Guatemata, Balheu
(Champion) ; Nicaragua, Chontales (belt); Panama}, Volcan de Chiriqui, Bugaba
(Champion).

A wide ranging and not uncommon species in Central America. ‘This insect is well
described by Motschoulsky, who also notices a variety from Panama, in which the
broad angular transverse bands of the elytra are ferruginous and margined only with
black (the narrow testaceous zigzag bands in consequence standing out more clearly),
instead of being wholly black. I have examined a typical example of P. wndatum,
Chevr. (labelled “type, Stark”) in Mr. F. Bates’s collection ; this individual, as regards
the elytra, agrees well with Motschoulsky’s description, though the head and thorax
differ greatly ; on examination, however, I find that the specimen has been gummed
together, and that the head and thorax at present attached to it belong to another
species. Motschoulsky’s name being preoccupied, we have to tall back upon that of

Chevyolat.
We figure a typical male from Jalapa, and also a female of the variety from Volcan

de Chiriqui.

3. Platydema rodriguezi. (Tab. VIII. fig. 15, ¢.)

Ovate, moderately convex, dull black, opaque. Head red or reddish brown; the basal half almost smooth,
the frontal half slightly shining and shallowly, finely, and confusedly punctured ; the epistoma defined
posteriorly by a broad and deep transverse impression in both sexes; in the male the intraocular space
deeply longitudinally excavate in the middle and with an elevation on each side just within the eye, in
the female this space slightly raised on each side and without excavation in the middle ; antenne with
the four or five basal joints, and the apical one, red, the rest black, joints 8-10 transverse ; prothorax
strongly transverse, the sides rapidly converging from the base and scarcely rounded, the apex arcuate

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1886. 2 BB

186 HETEROMERA.

emarginate (but not deeply) ; the anterior angles rounded, the base bisinuate, the surface (when seen under
a strong lens) exceedingly finely and sparingly punctured, dark reddish brown or black, the margins
sometimes paler; scutellum triangular; elytra feebly rounded at the sides, finely and regularly punctate-
striate (the punctures small and shallow and closely placed), the interstices smooth, dull black, with two
narrow, interrupted, zigzag, transverse bands (one before, the other considerably beyond the middle) and
the apex reddish testaceous, the base very narrowly, the suture broadly, and the reflexed margins (and
epipleure) red or reddish brown; legs red ; beneath shining, reddish brown.
Length 5-6 millim. (¢ @.)

Hab. Guaremata, Capetillo, Cerro Zunil (Champion).

Numerous examples. Allied to P. undatwm, the head in the male formed as in that
species, but abundantly distinct.

I have named this species after Sefor Don Juan Rodriguez, a well known Coleo-
pterist, to whom the present writer is much indebted, and in the vicinity of whose
estate in Guatemala this species was first captured. |

4. Platydema hondurense.

Subelliptic, moderately convex, dull black, opaque. Head ferruginous, the basal half a little darker, slightly
shining, sparingly and very finely punctured, transversely impressed in front, the epistoma well defined
at the sides and posteriorly by a narrow deeply impressed line; the intraocular space longitudinally raised
and swollen on each side (just within the eyes), and concave in the middle in the male, very slightly
impressed in the middle in the female ; antenne with the four basal joints, and the outer half of the
apical one, red, the rest piceous ; prothorax comparatively narrow, transverse, the sides slightly rounded
and converging from the base, the apex somewhat deeply arcuate emarginate, the anterior angles obtuse
and not prominent, the base strongly bisinuate, and with a shallow oblique fovea on each side, the
surface (when viewed with a strong lens) exceedingly finely, sparingly, and very shallowly punctured;
scutellum scutiform, reddish brown ; elytra a little wider than the prothorax at the base, slightly rounded
at the sides, widest about the middle, the humeri rather prominent, regularly punctate-striate (the punc-
tures closely placed, fine towards the suture, coarser towards the sides), the interstices exceedingly
minutely and sparingly punctured; palpi and legs light ferruginous; beneath and the epipleure light
ferruginous, shining, sparingly and finely punctured.

Length 53-6 miliim. (3 @.)

Hab. Brivis Honpuras, R. Sarstoon (Blancaneau).

Two examples. The structure of the head and the comparatively narrow thorax
will separate this species from P. sobrinum, P. subquadratum, &c.; the head in the
male is formed much as in P. undatum.

5. Platydema viriditinctum.

Oblong ovate, depressed, bronze-black above, shining. Head finely, sparingly, and shallowly punctured,
broadly impressed transversely in front, the epistoma broad and narrow, the intraocular space shallowly
impressed in the middle; antenne short, about reaching to the base of the prothorax, joints 9 and 10
transverse, light ferruginous ; prothorax short, strongly transverse, the sides feebly rounded and narrowing
from the base, the apex broadly and somewhat deeply emarginate, the anterior angles rounded, the base
strongly bisinuate, and with a distinct longitudinal fovea on each side, the surface very finely and sparingly
punctured ; scutellum large, seutiform ; elytra broader than the prothorax at the base, about four times
as long as the prothorax, rather broadly margined, the humeri prominent, the base deeply sinuate, widest
about the middle, very feebly rounded at the sides, somewhat broadly rounded behind, finely and shallowly
punctate-striate, the interstices flat, and sparingly and very finely punctured ; labrum, palpi, and legs

PLATYDEMA. 187

light ferruginous; beneath shining, reddish brown, sparingly and finely punctured, the metasternum
smoother, the ventral surface longitudinally wrinkled and punctured.
Length 6-64 millim.

Hab. Mexico, Parada (Sailé).

Two examples. This species may be known by its somewhat depressed form, dark
greenish-bronze upper surface, short thorax and antenne, &c. It should be placed
near the European P. dytiscoides, Rossi, the head being formed as in that species.

6. Platydema mexicanum, (Tab. VIII. fig. 12.)

Obovate, depressed, dull brownish black, slightly shining. Head transversely impressed in front, paler along
the anterior margin, the epistoma defined by a fine impressed line, finely and sparingly punctured, the
eyes large; antenne short, reaching a little beyond the base of the prothorax, joints 8-10 transverse,
ferruginous ; prothorax small, strongly transverse, the apex broadly emarginate, the anterior angles
almost rounded, the base strongly bisinuate and with a shallow oblique impression on each side, the sides
strongly margined and converging from the base, the surface very finely and distantly punctured ; scutel-
lum large, scutiform ; elytra about four times as long as the prothorax, very distinctly wider than the
prothorax at the base, slightly rounded at the sides, widest a little beyond the middle, somewhat abruptly
narrowing behind, the apices slightly produced, regularly punctate-striate (the punctures narrow, close,
and deeply impressed), the interstices flat, very sparingly, shallowly, and minutely punctured; palpi and
legs ferruginous ; tibie rather short, slightly curved, the spurs small; beneath shining, sparingly punc-
tured, the metasternum smoother, the ventral surface more closely and evidently punctured, and longitu-
dinally wrinkled at the sides ; prosternum horizontal, the apex produced and received by the concave
V-shaped mesosternum.

Length 53-6? millim.

Hab. Mexico (coll. F. Bates), Ciudad in Durango (forrer), Pinos Altos in Chihuahua
(Buchan-Hepburn), Jalapa (Hége).

Nine examples. Of quite a different facies from any other species recorded here, and
perhaps most nearly allied to the North-American P. americanum and P. subcostatum.
P. mexicanum may be known by its depressed obovate form, the comparatively very
short and narrow thorax, and the short and slightly curved tibia. An example from

Jalapa is figured.

7. Platydema agile.
Platydema agile, Chevr. Petites Nouv. Ent. ii. pp. 178, 187°.
Hab. Muxico1, Playa Vicente (Sallé); Brirish Honpuras, R. Sarstoon, Belize
(Blancaneaux); Guatemata, El Reposo (Champion); Nicaracua, Chontales (Belt).—
CotomBt1A !; VENEZUELA (coll. F. Bates); Guiana, Cayenne !.

A widely distributed but apparently rare species, represented by one or two examples
only from each locality. >

P. agile is a large, dull, velvety-black species, with the front of the head, the legs,
antenne, and under surface rufous; it is the largest of the Central-American species.
I have examined a typical example (named by Chevrolat) of P. agile, contained in

2 BB 2

188 HETEROMERA.

Mr. F. Bates’s collection. The length given (20 millim.) is evidently a misprint for
10 millim.; the insect varies in size from 92-114 millimetres.

8. Platydema angulatum ?
Platydema angulatum, Chevr. Petites Nouv. Ent. ii. p. 186’.

Hab. Mexico!.

Three examples from Parada, in M. Sallé’s collection, are labelled as above ; they
may or may not represent Chevrolat’s species. The following is the description :—
“Ovale, aterrimum, opacum, elongatum; capite antice rotundato, rubro-marginato, |
ante oculos sulcato ; labio, palpis, antennis, epipleuris pedibusque rubris; prothorace
transverso, supra scutellum modice rotundato, lateribus anguste sulcato atque rubido ;
scutello triangulari; elytris tenue sulcatis, in sutura angulatis—Long. 6% millim.,
lat. 32 millim.—Mexico.”

** L’angle terminal de la suture est la caractére distinctif de cette espéce.”

The above mentioned examples from Parada certainly represent a distinct species,
which may be known from P. rotundatum by its flatter and more parallel form ; the
head slightly shining, and finely, evidently, but not closely punctured; the antenne
ferruginous, the four or five outer joints slightly darker; the anterior margin of the
thorax distinctly bisinuate ; the elytra somewhat depressed, and finely and shallowly
punctate-striate, the punctures not closely placed. If it should prove to be not
identical with P. angulatum, the species might be called sallei.

In these examples I fail to detect any distinct difference in the sutural angle of the
elytra (the chief character for P. angulatum, according to the describer) between this
and the allied species.

9. Platydema subquadratum.
Neomida subquadrata, Motsch. Bull. Moscou, xlvi. pt. 1, p. 477 (1878)'.
Platydema ventrale, Chevr. Petites Nouv. Ent. ii. p. 186 (1877)?. |

Platydema janus, Horn, Rev. Ten. of Am. north of Mexico, p. 882° (nec Fabr., and Lap. &
Brullé).

Platydema pernigrum, Casey, Contrib. to the descriptive and systematic Coleopterology of North
America, part i. p. 49 (1884)*; Horn, Entom. Americana, i. pp. 111, 113.

Hab. NortH America, Southern States %, Arizona 4——MeExico, Presidio (forrer),
Vera Cruz, Cosamaloapam (Sallé*), Jalapa (Hoge); British Honpvras, R. Sarstoon,
R. Hondo (Blancaneaux) ; GuateMata, Zapote, San Gerénimo, San J oaquin, Chacoj
(Champion) ; Nicaragua, Granada (Sallé); CenrraL America 1,

A common species in Mexico and Guatemala, extending northwards into California,
Arizona, and New Mexico, and southwards to Nicaragua.
P. subquadratum may be known amongst its allies by the closely punctured head,

PLATYDEMA. 189

the regular and distinct punctuation of the thorax, and the somewhat depressed and
subquadrate form ; the antenne with the three or four basal joints, and the apical one,
red; the upper surface dull velvety-black, opaque; the epipleure, legs, and under
surface pale ferruginous; the head similar in both sexes; fresh examples have the
upper surface evidently pruinose; varying in size from 4-7 millimetres; the sides of
the thorax are slightly rounded in some examples, in others almost straight.

I have examined a typical example of P. ventrale and see no reason for separating it
from P. subguadratum. American entomologists refer this insect to P. janus (Fabr.)
Lap. & Brullé, on, it seems to me, very questionable authority. An example before
me, contained in Mr. F. Bates’s collection, named as above by Dr. Horn, is identical
with our Central-American insect. It seems to me more than probable that P. janus,
Fabr., from South America, represents another species, and is possibly (to judge from
the description) the insect here referred to P. sobrinum; P. janus, Lap. & Brullé, is
from Peru. PP. subguadratum does not, so far as I am aware, extend south of Nica-
ragua; in the State of Panama it is replaced by P. sobrinwm. Numerous allied
species with similarly coloured antenne are now known, and in the absence of further
evidence I prefer not to refer either of our Central-American insects to P. janus.

10. Platydema sobrinum.
Platydema sobrinum, Chevr. Petites Nouv. Ent. ii. p. 186 (1877)'.
?Neomida discolor, Motsch. Bull. Moscou, xlvi. pt. 1, p. 477 (1873).
?Platydema (Mycetophagus) ganus, Fabr. Syst. Eleuth. 1. p. 566° (nec Horn, Lap. & Brullé).

Hab. Mexico (Stark), Cordova (Sallé), Jalapa (Hoge); British Honpvuras, R.
Sarstoon (Blancaneaux), Belize (Blancaneauz, coll. F. Bates); Guatemata, Cahabon,
Zapote, El Tumbador (Champion); Nicaraeua, Chontales (belt, Janson); Panama,
Bugaba, Volcan de Chiriqui (Champion).—? Sour AMERIca *.

A variable and somewhat puzzling species, abundant throughout our region. Rather
more convex and more ovate than P. subquadratum, the upper surface smoother, the
thorax not very distinctly punctured, the elytra more finely and shallowly punctate-
striate.

In some examples the elytra are much more finely punctate-striate than in others.
The antenne, as in P. swbqguadratum, usually have the four or five basal joints, and the
apical one, rufous or ferruginous.

The two individuals from Belize have the antenne rather shorter, with the penul-
timate joints more transverse, than examples from the other localities; they can-
not, however, be satisfactorily separated from P. sobrinum. I have determined this
species from typical examples (named by Chevrolat himself) contained in Mr. F. Bates’s

collection.
It is not improbable that Neomida discolor and N. texana, Motsch., are identical with

190 HETEROMERA.

P. sobrinum, Chevr.: N. discolor is recorded from “ Brésil, de Vénézuela et jusq’au
Texas”’?; V. texana from Texas.

11. Platydema ferrugineum.
Platydema ferrugineum, Chevr. Petites Nouv. Ent. ii. p. 186".
Platydema bi-impressum, Chevr. loc. cit. p. 214”.
Hab. Muxico1? (coll. F. Bates), Toxpam, Cordova (Sallé), Jalapa (Hoge); Guatz-
MALA, Capetillo, Las Mercedes (Champion); Panama, Volcan de Chiriqui (Champion).

Determined from typical examples in Mr. F. Bates’s and M. Sallé’s collection.

This is another variable and rather puzzling species ; oblong ovate in form, moderately
convex, the upper surface uniform dark ferruginous, sometimes almost black. From
the numerous opaque velvety-black species it may be known by its comparatively
elongate form, and long legs and antenne; it varies in size from 6—9 millimetres. The
four examples from Guatemala and the State of Panama are rather more convex,
and have the elytral strize more deeply impressed, than numerous individuals from
Mexico.

12. Platydema fuliginosum.
Platydema fuliginosa, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 874".

Hab. Mexico }.

I am unable to satisfactorily identify this species, the only one of the genus ascribed
to our country by Laporte and Brullé, among the very large number of specimens before
me: it is more than probable, however, that it represents one or the other of the
species here enumerated. ‘To judge from the description, P. fuliginoswm should be

nearest to P. subguadratum, though no mention is made of the pale apical joint to the
antenne.

13. Platydema melancholicum.

Ovate, rather broad, moderately convex, black, opaque. Head slightly shining, transversely impressed in
front, finely and closely punctured, the epistoma defined by a fine shallow impressed line, the anterior
margin red ; palpi piceous ; antenne short, about reaching to the base of the prothorax, the seventh to
the tenth joints broad and transverse, the two basal joints, the third joint, and the extreme apex
indistinctly, red, the rest black ; prothorax transverse, the sides scarcely rounded and converging from
the base, the base (feebly) and apex bisinuate, the anterior angles obtuse, the surface (if viewed with a
lens) exceedingly finely and rather closely punctured; scutellum large, scutiform ; elytra a little wider
than the prothorax at the base, feebly rounded at the sides, regularly punctate-striate (the punctures
deeply impressed and towards the sides placed not very close together), the interstices smooth ; legs red,

the tibie slightly infuscate ; beneath (and the epipleure) shining, reddish brown.
Length 43-5 millim.

Hab. Guatemata, San Joaquin (Champion).

Two examples, Comparatively shorter and broader than P. subquadratum ; of the

PLATYDEMA. 191

size of the smallest individuals of that species, from which it is distinguished by the
differently formed antenne, and the deeper and coarser punctures of the elytral strie.

14. Platydema rotundatum.
Platydema rotundatum, Chevr. Petites Nouv. Ent. ii. p. 186°.

Hab. Mexico! (coll. F. Bates), Jalapa, Vera Cruz, Esperanza (Hége), Playa Vicente,
Cordova (Sallé) ; Guatemaua, Duefias, Zapote, Cerro Zunil, San Gerdénimo (Champion).

Many examples. In Mr. F. Bates’s collection two perfectly distinct species are each
labelled (apparently in Chevrolat’s handwriting) “ P. rotundatum, Chevr., type”: one
from Mexico, agreeing with our species and with the description ; the other from Para
and differing in having much larger and more oblique eyes, &c. P. rotundatum may be
known from the allied species by its short broad form, rounded sides, and the fine and
lightly impressed elytral striae; the antenne are usually reddish-piceous, in some
examples, however, the last three or four joints are darker; in the male the posterior
tibiz are slightly sinuous and widened from the middle to the apex; it varies in size
from 5-8 millimetres.

15. Platydema rugiceps.

Rotundate ovate, convex, velvety-black, opaque. Head broad, short, subrugose, shining, the epistoma well-
defined at the sides and posteriorly by a shallow but distinct groove, the eyes widely separated ; antenne
dark ferruginous, the two or three basal joints, and the extreme apex, slightly paler ; prothorax broad,
strongly transverse, the sides slightly rounded and converging from the base, the base (strongly) and apex
bisinuate, the anterior angles slightly prominent but obtuse, the surface smooth; scutellum rather large,
triangular ; elytra the width of the prothorax at the base, narrowly margined, strongly rounded at the
sides, widest before the middle, somewhat acuminate behind, very shallowly and finely punctate-striate
(the punctures not very closely placed), the interstices smooth ; legs and epipleurx reddish brown ; beneath
reddish brown, shining, sparingly and finely punctured.

Length 64-73 millim.

Hab. Mexico, Cordova (Sallé); Guatremata, Cahabon (Champion) ; Nicaragua,
Chontales (Belt, in coll. F. Bates).

The rotundate form, and the shining and rugose head, will readily distinguish this
species amongst its allies; from P. rotwndatum it may be known by the broader and
differently sculptured head, and the elytra more acuminate behind; and from
P. globatum, Lap. & Brulle, from Brazil, by the darker antenne, larger head, &c. A
closely allied undescribed species is found at Chanchamayo, Peru.

The four examples before me have the hind tibie similarly formed, and without
curvature or narrowing at the base ; possibly they are all females.

16. Platydema oculatum.
Subrotundate ovate, convex, dark reddish brown, opaque. Head slightly shining, the frontal half red, very
finely and sparingly punctured, with a shallow impression on each side before the eyes, the epistoma

defined by a fine impressed line ; eyes large, oblique, not widely separated ; prothorax transverse, the

192 HETEROMERA.

sides slightly rounded and converging from the base, the apex broadly but not deeply arcuate-emarginate’
the anterior angles obtuse and not prominent, the base very deeply bisinuate, the hind angles produced
behind and slightly overlapping the elytra, the surface almost smooth; scutellum triangular ; elytra a
little wider than the prothorax at the base, rounded at the sides, widest about the middle, regularly
punctate-striate (the punctures shallow and closely placed), the interstices smooth, a little darker in colour
than the prothorax; legs and antenne (entirely) light ferruginous ; beneath (and the epipleure) reddish
brown, shining, very sparingly and finely punctured ; legs rather slender ; posterior tibie in the male thin
towards the base, slightly widened on their inner side from the basal fourth to the apex.
Length 43 millim. (¢ @.)

Hab. Mexico, Cordova (Sallé).

Two examples. Of the size of the North-American P. ruficorne, but of the shape of
P. nicaraguense; from the last named species P. oculatum may be known by its very
much smaller size, differently formed head and eyes, and the produced hind angles of
the thorax. ‘The hind tibie in the male are formed as in P. rotundatum.

17. Platydema nicaraguense.

Subrotundate ovate, convex, dark reddish brown, opaque. Head (comparatively) coarsely rugulose, slightly
shining, the epistoma well-defined at the sides and posteriorly by a distinctly impressed groove; eyes
narrow, strongly oblique, large, and extending inwards ; prothorax transverse, the sides slightly rounded
and converging from the base, the apex feebly arcuate-emarginate, the anterior angles rounded and not
prominent, the base strongly bisinuate, the surface almost smooth, reddish brown, here and there
indistinctly infuscate; scutellum triangular, reddish brown ; elytra a little wider than the prothorax at
the base, distinctly margined, the sides rounded, finely punctate-striate (the punctures approximate, the
striee more deeply impressed towards the apex), the interstices smooth, dull dark brownish black, the base
narrowly reddish brown, distinctly pruinose ; epipleure, legs, the antenne (entirely), and beneath, rather
light ferruginous; legs finely setose, the tibia rough; beneath shining, very evidently and rather
closely punctured.

Length 73-7? millim.

Hab. Nicaracua, Chontales (Belt).

Two examples. Comparatively less rotundate than P. rugiceps, of a peculiar reddish-
brown tint, the head rugulose, the elytra evidently pruinose, the legs and antennz
entirely ferruginous ; of described species it is nearest allied to P. globatum, Lap. &
Brullé, from Brazil.

18. Platydema immaculatum.

Ovate, convex, ferruginous, opaque. Head slightly shining, closely and finely punctured, transversely impressed
in front, the epistoma well-defined at the sides and posteriorly by a rather deep groove; antennw
comparatively short, stout, the three basal joints, and the extreme apex (indistinctly), red, the rest black,
joints 7-10 strongly transverse ; prothorax transverse, the sides feebly rounded and converging from the
base, the apex broadly and somewhat deeply emarginate, the anterior angles obtuse and rather prominent,
the base bisinuate and with a narrow very oblique impression on each side, the surface smooth ; scutellum
large, triangular ; elytra feebly rounded at the sides, scarcely wider than the prothorax at the base, widest
about the middle, regularly punctate-striate (the punctures rather coarse and deep, and not very closely
placed), the interstices smooth ; palpi and legs red, the tibia rough, and setose on their outer edge ;
beneath ferruginous, shining.

Length 53-7 millim.
Hab. Panama, Volcan de Chiriqui, David (Champion).

PLATYDEMA. 193

Two examples. In this species the entire upper surface is of a dull ferruginous
colour, without spots or markings. P. immaculatum is perhaps nearest allied to
F. sexnotatum, but is shorter and more ovate in form, the elytra without spots, &c. ,

19. Platydema diophthalmum. (Tab. VIII. fig. 16.)
Platydema diophthaima, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 383’.
Platydema luna, Chevr. Petites Nouv. Ent. ii. p. 186°.

Hab. Mexico? (coll. F. Bates), Ventanas (Forrer), Cordova (Sallé), Jalapa (Hoge);
British Honpuras, Belize (coll. F. Bates, Blancaneaux), R. Sarstoon (Blancaneauz) ;
GuatEMALA, El Reposo, Capetillo, Zapote, San Gerdnimo, San Juan in Vera Paz
(Champion); Nicaragua, Chontales (Belt, Janson); Panama, Volcan de Chiriqui,
Bugaba (Champion).—ANTILLES, Cuba 1 (coll. F. Bates).

A common species throughout the forest-region of Central America. I fail to
detect any difference between P. lwna, the type of which is before me, and P. dioph-
thalmum. A large dull black species, each elytron with a large rounded transverse red
spot near the base. I met with P. diophthalmum in great abundance about fungoid
growth on fallen trees in the low forest-region west of Bugaba, and also not uncommonly
in various parts of Guatemala. |

An example from R. Sarstoon is figured.

20. Platydema bimaculatum.
Platydema bina, Deyr. in litt.

Size and form of P. diophthalmum, and differing as follows:—the head smoother and much more finely
punctured; the prothorax widest a little before the base, the sides more rounded behind, the hind angles
in consequence more obtuse, the surface almost smooth ; the elytra more finely and shallowly punctate-
striate, the red spot placed at the middle (not near the base as in P. diophthalmum) ; the penultimate
joints of the antenne less transverse ; the rest as in P. diophthalmum.

Length 6-8 millim.

Hab. Mexico, Cordova, Tuxtla, Toxpam (Sallé), Jalapa (Hoge); British Honpvuras,
Belize (Blancaneaur) ; GUATEMALA, San Juan in Vera Paz (Champion); NicaRraeva,
Chontales (Belt, coll. F. Bates); Panama, Volcan de Chiriqui (Champion).—GUuIANA,

Cayenne.

Generally distributed throughout our region, but not quite so common as P. dioph-
thalmum, and often captured in company with that species, from which it may be
known by the red spot.on each elytron being placed further back and at the middle of

each, as well as by other characters.

21. Platydema fasciatum.
Mycetophagus fasciatus, Fabr. Syst. Eleuth. ii. p. 367. _
Platydema fasciatum, Lap. & Brullé, Aun. Sciences Nat. xxiii. p. 3827.
Diaperis fasciata, Dej. Cat. 3rd edit. p. 68. |
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1886. 20C

194 HETEROMERA.

Hab. Mzxico, Cordova (Sallé), Jalapa, Esperanza (Hoge); British Honpuras, Belize |
(Blancaneaux) ; Guaremata, Balheu, Cubilguitz (Champion).—CoLomB1s, Bogota (coll.
F. Bates); Guiana, Cayenne!; Amazons, Santarem. :

A common species in Mexico. Smaller and narrower than P. bimaculatum, the head
closely and rather coarsely punctured ; the thorax distinctly but finely punctured ; the
strie of the elytra more deeply impressed, the punctures much coarser; in size varying
from 4-5 millimetres.

22. Platydema submaculatum.
Platydema:-submaculatum, Chevr. Compt. Rendus de la Soc. Ent. Belg. xxi. p. xcix’.

Hab. Mexico, Esperanza, Jalapa (Hége) ; Brrrish Honpuras (Blancaneaux).—
? Braz}.

In Mr. F. Bates’s collection two distinct species are each labelled, in Chevrolat’s
handwriting, P. submaculatum, and marked “type”; one of these, from Santarem,
Brazil, does not differ from P. fasciatum, Fabr.; the other, without locality, agrees
more nearly with the description of P. submaculatum, and with our Central-American
species. In the specimen without locality the elytra are distorted and apparently
immature, the red discoidal spots of the elytra appearing on one side only. Chevrolat
himself suggests that P. submaculatum may possibly be only a variety of P. fasciatum ; —
but in the latter specimen, as in our species, the head is shining and very much more
coarsely punctured, the thorax more evidently punctured, and the transverse red spot on
each elytron placed (as described by Chevrolat), if anything, a little before the middle.
The elytral spots vary a good deal in size in the twenty examples before me, but do
not, as in P. transversum, show a tendency to form broad transverse or oblique bands.
The size varies from 44-54 millimetres. This species bears much the same relation to
P. fasciatum as does P. diophthalmum to P. bimaculatum.

23. Platydema transversum. (‘Iab. VIII. fig. 17.)
Platydema transversum, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 3817.

Hab. Panama, Volcan de Chiriqui (Champion) —Cotoms1a}, Cartagena (coll. F. Bates);
Amazons, Para, Ega, Santarem. .

Three examples from Chiriqui are apparently referable to this species; these agree
very nearly in the maculation of the elytra with some of the specimens (from Balheu)
referred to P. fasciatum. The red elytral bands, however, in the Chiriqui examples —
are united at the suture and much more sharply defined, extending angularly forwards
near the middle and posteriorly along the suture ; the strie are more deeply impressed,
the punctures coarser and more distant one from another.

PLATYDEMA. 195

24. Platydema bisignatum. (Tab. VIII. fig. 18.)
Platydema bisignatum, Chevr. Petites Nouv. Ent. ii. p. 181".

Hab. Mexico (Sallé) ; Guaremana, Capetillo 3000-5000 feet, San Geronimo ( Cham-
pion).—CotomBia, Cartagena! (coll. F. Bates).

This species will be easily recognized from our figure, which is taken from an example
from Capetillo. |

Central-American specimens agree with the Colombian. type, except that they have
the elytra more finely and rather more shallowly punctate-striate, the punctures placed
closer together ; but in a long series of examples I find considerable variation in this
respect. P. erythropterum *, Chevr., from Bogota, is allied to this species, the elytra
being similarly coloured, but at once separated by the very coarsely punctate-striate
elytra (the punctures distant one from another) and convex interstices.

I found P. disignatum in large numbers on the forest-clad slopes of the Volcan de
Fuego in the vicinity of the sugar-plantation of Capetillo; one or two examples only
from the other localities.

25. Platydema hogei. (Tab. VIII. fig. 19.)

Elongate ovate, moderately convex, deep black, opaque. Head shallowly, finely, and closely punctured, the
anterior half red, the epistoma well-defined posteriorly by a transverse impression ; antenne black, the
three or four basal joints, and the outer half of the apical one, red, joints 7-10 transverse ; last joint of
the maxillary palpi securiform ; prothorax narrowing from the base, the sides feebly rounded (in some
examples almost straight), the apex deeply emarginate, the anterior angles prominent, obtuse, the base
strongly bisinuate, the surface shallowly, finely, and evidently punctured (a little more diffusely than the
head); elytra long, regularly punctate-striate (the punctures shallow, and not closely placed), the
interstices smooth, with a broad transverse subangular red band (not reaching the suture or outer margin)
on each side before the middle, and a still broader but oblique red band (starting from the outer margin
and confluent with the other at the suture) on each side some distance before the apex, in some examples
the outer margin from the second band to the extreme apex also red ; legs piceous, the tarsi and knees
lighter; beneath shining, sparingly and rather coarsely punctured, the ventral surface at the sides
longitudinally wrinkled and irregularly punctured.

Length 6-8 millim.

Hab. Mexico (Sallé), Jalapa, Esperanza (6ge).
Captured in abundance by Herr Hoge at Jalapa. Allied to P. maculosum, Lap. &

Brullé, from Brazil, but with the second band on the elytra placed some distance before
the apex (not at the apex itself, as in that species), &c.

26. Platydema monilicorne.
Platydema monilicorne, Chevr. Petites Nouv. Ent. i. p. 186°.

Hab. Mexico}.

Unknown to me. ‘The following is the description :—“ Oblongum, convexum ;

* M. Chevrolat (op. cit. p. 187, nota) states that this species is also found in Mexico, but probably in error
for the allied P. bisegnatum.
| 2002

196 - HETEROMERA.

antennis moniliformibus, piceis, articulis 3° primis ferrugineis, 3° longiore, ultimo
globoso, ultra basin prothoracis projectis; supra atrum, opacum ; epipleuris, coxis
anticis pedibusque rubris; pectore piceo, abdomine rufescente ; capite antice truncato,
in margine rubro, inter oculos tenue sulcato; prothorace tranmsverso, supra scutellum
late modiceque rotundato, angulis posticis rectangulis ; scutello trigono ; elytris obsolete _
sulcatis, rubido nebulosis. Long. 8 millim., lat. 4 millim.—Mexico. Unicum.”

“C’est l’une des plus grandes et la plus allongée de ce groupe.”

27. Platydema sexnotatum. (Tab. VIII. fig. 20.)
Platydema sexnotatum, Chevr. Petites Nouv. Ent. ii. p. 194°.

Hab. Mexico! (coll. F. Bates), Cordova (WSallé), Jalapa (Hoge); Nicaragua,
Chontales (Belt).

_ This species will be readily identified by its ferruginous colour and elytral markings ;
it varies in size from 52-7 millim. P. sexpunctatum, Chevy. (op. cit. p. 181), from
Bogota, judging from the description, though apparently smaller (44 millim.), must be
very Closely allied to, if not identical with, this species; if this should prove to be the
case, the name seanotatum will have to be changed.

An example from Cordova is figured.

28. Platydema sexmaculatum.
Platydema sexmaculatum, Chevr. Petites Nouv. Ent. 11. p. 194°.

Hab. Mexico (Stark) *.

Unknown to me. This species is apparently allied to P. seanotatum ; the following
is the description :—‘‘Oblongum, convexum, ferrugineum; prothorace transverso,
nigro, holosericeo ; elytris sanguineis, singulo: punctis tribus nigris 1-2, ante medium
sitis, punctato-striatis ; capite rufescente, antice subrotundato, labio, ore, antennis (fuscis)
articulis quatuor ultimoque apice, epipleuris, corpore infra pedibusque rubris. Long.
54 millim., lat. 834 millim.—Mexico. Unicum; a D. Stark missum.’

29. Platydema fasciatocolle.
Platydema fasciatocolle, Chevy. Petites Nouv. Ent. ii. p. 194’.

Hab. Mexico (Stark’*).

Unknown to me. “Ovali-elongatum, convexum, rubro-tomentosum, in prothorace
fascia media, apicibus abbreviata; scutello triangulari, rubro ; elytris punctato-striatis,
nigris, in basi longe suturam, singulo: lineolis 3 mediis, macula apicali obliqua, fasciis
duabus, una ante, altera post medium, rubris vel flavis. Long. d-5? millim., lat. 21-
22 millim.— Mexico. 2 exempl.; a D. Stark missa.”

PLATYDEMA. | 197

30. Platydema guatemalense. (Tab. VIII. fig. 21.)

Broad ovate, convex, dull reddish testaceous. Head shining, coarsely and closely punctured, the basal half.
piceous, the rest red, the epistoma defined by a shallow groove; antenne with joints 7-10 strongly
transverse, the four basal joints testaceous, the others slightly darker ; maxillary palpi testaceous, the
last joint broadly triangular ; prothorax narrowing from the base, the sides feebly rounded, the anterior
angles obtuse and almost rounded, the apex scarcely emarginate, the base strongly bisinuate, almost
smooth, opaque, reddish testaceous, marked with black, thus:—a broad irregular subtriangular mark
before the middle, and a small transverse mark on each side of the disc before the base, and on either side
externally a crescent-shaped spot; scutellum triangular, red; elytra a little broader than the prothorax
at the base, slightly rounded at the sides, regularly punctate-striate (the punctures shallowly impressed,
fine, and closely placed), the interstices smooth and almost flat, opaque, the entire surface about equally
variegated with interrupted longitudinal black and sordid yellow streaks, the suture and margins and
the epipleure reddish ; legs reddish testaceous, the tibiee more or less infuscate ; beneath shining, reddish
brown, the flanks of the prothorax testaceous.

Length 52 millim.

Hab. GuaTemata, San Gerénimo (Champion). |

One example. Not nearly allied to any known species.

31. Platydema ornatum. (Tab. VIII. fig. 22.)
Platydema ornatum, Chevr. Petites Nouv. Ent. 11. p. 186 (sp. no. 45).

Hab. Mexico! (coll. F. Bates), Cordova (Sailé).

This distinct species will be readily identified from our figure, which is taken from
a typical example from Cordova.

32. Platydema pretiosum. (Tab. VIII. fig. 23.)

Ovate, strongly convex, reddish testaceous, opaque. Head slightly shining, red, finely, very closely, and
almost confluently punctured, broadly impressed transversely in front, the antennary orbits swollen and
reflexed ; antennee stout from the base, black, the five basal joints, and the outer half of the apical one,
testaceous, joints 7-10 transverse; maxillary palpi testaceous, the last joint triangular ; prothorax short,
broad, transversely convex, the sides rounded and narrowing very little anteriorly, the apex arcuate
emarginate, the anterior angles rounded, the base very strongly bisinuate, closely embracing (and towards
the sides almost appearing to overlap) the elytra, smooth, the disc with a short black line towards the
base and an oblique black stripe on each side (not reaching the basal or apical margin), midway between
which and the lateral margin is a much smaller longitudinal black spot ; elytra the width of the prothorax
at the base, the sides almost straight from the base to the middle, thence narrowing to the apex, regularly
punctate-striate (the punctures fine, shallow, and closely placed), the interstices smooth and flat, sordid
yellow, each elytron marked with four large black spots—one near the base (broad, emarginate ante-
riorly), two about the middle (longitudinal in form, the inner one distant from the suture, the outer one
not quite reaching the lateral margin), and one (irregular, and placed near the lateral margin) some
distance before the apex, the base also, towards the sides, slightly marked with black, the suture broadly,
the lateral margin narrowly, and the epipleurx, dull red; legs testaceous ; beneath reddish brown,
shining.

Length 43 millim.

Hab. British Honpuras, Belize (Blancaneauz).

One example. I can suggest no near ally to this prettily marked species.

198 HETEROMERA.

33. Platydema panamense. (Tab. VIII. fig. 24.)

Ovate, strongly convex, dark ferruginous, opaque. Head broad, dull red, very shallowly, finely, and confusedly
punctured (when seen under a strong lens), the epistoma well defined posteriorly and at the sides by a
distinct groove ; antennz with the four basal joints, and the apical one entirely, red, the rest black,
joints 9 and 10 transverse; prothorax strongly transverse, the sides slightly rounded and quickly con-
verging from the base, the base (feebly) and apex bisinuate, the anterior angles obtuse, smooth, red, with a
broad transverse black band (extending nearly to the lateral margins) in the middle ; scutellum triangular,
red; elytra convex, scarcely wider than the prothorax at the base, rounded at the sides, somewhat coarsely
punctate-striate (the punctures distant one from another), the interstices smooth, black, with two strongly
angulated zigzag transverse bands (one, before the middle, starting from a little below the shoulders,
extends to the second interstice, where, turning abruptly, it is continued in a straight line to the base,
the other, beyond the middle, starts from the lateral margin and ends abruptly in the second interstice)
and the apex reddish testaceous, the suture (from the base to the apex) and the lateral margins (and
epipleurs) reddish brown ; legs red; beneath reddish brown, slightly shining. ,

Length 43-57 millim.

Hab. Panama, Volcan de Chiriqui ( Champion).

Five examples. This species somewhat resembles-P. undatum; it is, however, more
convex than that species; the head is broader, and not excavate in the male; the
prothorax and elytra differently marked, the base of the latter (except near the suture)
black, &c.

34. Platydema tibiale. (Tab. VIII. fie. 25.) -
Platydema tibiale, Chevr. Compt. Rendus de la Soc. Ent. Belg. xxi. p. exlviii'.
Hab. NicaraGua, Chontales (Belt, Janson, coll. F. Bates); Panama, Bugaba (Cham-
pton).—AMAzons, Ega' (coll. F. Bates).

I am unable to detect any difference of importance between specimens from the
Amazons and others from Central America; these latter have the elytra more distinctly
marked with red and the subapical spots more or less confluent, while in others from
Ega these spots are sometimes entirely absent. In some examples the thorax is
distinctly suffused with red on each side, and the sides more rounded than in others:
the latter is possibly a sexual character.

A specimen from Chontales is figured.

35. Platydema 15-maculatum. (Tab. VIII. figg. 26, 27.)
Platydema 15-maculatum, Chevr. Compt. Rendus de la Soc. Ent. Belg. xxi. p. exlix’.
Hab. GUATEMALA, Panzos (Champion) ; Nicaragua, Chontales! (coll. F. Bates, Belt,

Janson); Panama, Bugaba, Volcan de Chiriqui ( Champion).—Amazons, Para, Tocantins
(coll.. F. Bates).

Numerous examples. Ina variety from Chontales (Belt) the elytra have the lateral
margins and the suture to the apex (as well as the base, narrowly) black ; the two
inner spots of the first band smaller than in the type; the spots of the second band
confluent and forming a broad transverse angular band, extending inwardly to the

PLATYDEMA. 199

suture and outwardly to the lateral margins; the apical spots large, and forming a
broad apical patch angulated on its anterior edge.

A single example from the Polochic valley in Guatemala differs from the type in
having the elytra red to the base, the spots forming the second band united into
one large spot (not reaching the suture or lateral margins), and the thorax with a
distinct transverse red band about the middle, not reaching the lateral margins. The
two individuals from Bugaba resemble the above mentioned variety from Chontales in
the markings of the elytra (in one, however, the second band does not reach the
sutural stripe), but are considerably smaller in size than any of the other examples
before me. |

Evidently a variable species as regards the coloration of the thorax and elytra and
size (7-9 millim.). Examples from our country agree very well with others collected
by Mr. H. W. Bates on the Amazons.

We figure two specimens from Chontales.

36. Platydema nigromaculatum. (Tab. IX. figg. 1, 2.)

Black, short, broad ovate, convex, dull. Head distinctly and rather closely punctured, the labrum and eyes
sometimes reddish; prothorax reddish testaceous, the anterior margin with a triangular black mark on
each side (connected by a narrow marginal line) just behind the eyes, the disc with a long subtriangular
black mark on each side, extending from the base to beyond the middle, and connected posteriorly by
a broadish basal band, the black basal band not reaching the lateral margins and often narrowly produced
in the middle anteriorly ; scutellum black; elytra regularly and somewhat deeply punctate-striate, the in-
terstices (if viewed laterally) appearing feebly convex, and with indications (especially towards the apex) of
transverse darker markings, reddish testaceous, with numerous black markings arranged thus :—a narrow

subtriangular mark at the base on each side (forming a continuation of the marks on the base of the
prothorax), two rounded marks (placed transversely) on each side before the middle, a large broad zigzag
pand a little behind the middle (not reaching the lateral margins, but usually connected at the suture),
and an elongate mark on each side before the apex, the suture also narrowly black nearly to the-apex ;
antenne and legs black, the knees sometimes narrowly reddish ; beneath sparingly and finely punctured,
black, the flanks of the prothorax and the epipleure testaceous ; mesosternum with a very prominent
V-shaped elevation, the prosternum strongly produced.

Length 6-64 millim., breadth 33-43 millim. —

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Var. The black spots on the anterior margin of the prothorax obsolete, the others reduced to longitudinal
streaks not connected along the base; the zigzag band on the elytra reduced to a large-angular spot, or
to two longitudinal streaks, distant from the suture, the suture itself not margined with black.

Hab. NicaRaGua, Chontales (Belt, Janson).

Numerous examples of the type, five of the variety. Allied to P. ornatum, Chevr.,
but comparatively broader and shorter; the elytra less attenuate posteriorly, and
somewhat differently marked, the lateral margins not black, the suture more narrowly
margined with black; the femora and abdomen wholly black. | oe

We figure two examples: one (fig. 1) a typical individual from the Volcan de Chiriqui,

the other (fig. 2) the variety from Chontales.

200 HETEROMERA.

37. Platydema breve. (Tab. VIII. fig. 28.)-

Broad ovate, short, convex, dark reddish ferruginous, opaque. Head short, broad, dull, exceedingly finely and
closely punctured (when seen under a strong lens), the epistoma defined posteriorly by a shallow trans-
verse groove ; antenne rather short, stout, the four basal joints, and the outer half of the apical one, red,
the rest black, joints 7-10 broad and transverse ; prothorax short, broad, the sides feebly rounded and
converging from the base, the base and apex bisinuate, the anterior angles prominent and obtuse, smooth,
reddish ferruginous, the disc more or less transversely infuscate; scutellum triangular; elytra short,
rounded at the sides, regularly punctate-striate (the punctures coarse, shallow, and, towards the sides,
distant one from another), the interstices smooth, brownish black, with two curved, interrupted, zigzag,
transverse, reddish testaceous bands (one before, the other beyond the middle), the base (and scutellum),
the suture broadly, the lateral margins, and (usually) the whole of the apex from the second band, reddish
brown ; legs red ; beneath reddish brown, shining, finely and sparingly punctured.

Length 43-5 millim.

Hab. Mexico, Cordova (Sallé); Guatemata, Cubilguitz, Cahabon (Champion) ;
PawnaMa, Bugaba (Champion). ; . :

Seven examples. -A broad oval, short, convex species, with stout antenne; the
head similarly formed in both sexes; dark reddish ferruginous in colour, and opaque ;
the elytra marked much as in P. rodriquezi.

P. breve is apparently not nearly allied to any other described species; it is appa-
rently widely distributed.

The specimen figured is from Cubilguitz.

38. Platydema versicolor. (Tab. IX. fig. 3.)
Platydema (?) versicolor, Chevr. Petites Nouv. Ent. ii. p. 194°.

Hab. Mexico! (coll. F. Bates), Cordova (Sallé), Jalapa, Esperanza (Hoge).

Many specimens of this pretty species were captured by Herr Hoge near Jalapa;
one of these is figured.

39. Platydema tricolor. (Tab. IX. fig. 4.)

Bright reddish brown, broad ovate, convex, shining. Head sparingly but somewhat coarsely punctured ;
prothorax sometimes indistinctly darker in the middle; elytra black, the base narrowly, a transverse
angular band, placed a little before the middle, and extending from the lateral margins to the second dorsal
stria, and a similar but shorter band behind the middle, yellowish testaceous, the extended lateral margins,
the apex, and sometimes the apical half of the suture, reddish brown, regularly and deeply punctate-
striate (the punctures comparatively rather coarse), the interstices flat and very evidently though sparingly

punctured ; the three basal (and part of the fourth) joints of the antenne, and the outer half of the apical
one, and the legs, red. | .

Length 53-6 millim.

Hab. Guatemata, San Gerénimo, Purula (Champion).

Numerous examples. Allied to P. versicolor, but easily separated from that species
by the unicolorous thorax and the more coarsely punctate-striate el

ytra, the base of
the latter being narrowly testaceous. |

PLATYDEMA. 201

40. Platydema biplagiatum. (Tab. IX. figg. 5, 6.)

Oblong ovate, moderately convex, dark reddish brown, shining, glabrous. Head shallowly, confusedly, and
somewhat coarsely punctured, the epistoma not clearly defined, the frontal half red; antenne with the
three or four basal joints, and the outer half of the apical one, red; prothorax broader than long, the
sides strongly margined, rounded, and rapidly narrowing from the middle, the anterior angles broadly
rounded and not prominent, the apex almost truncate, the base bisinuate and with a distinct oblique fovea
on each side, the surface very finely, shallowly, and diffusely punctured, black, the sides and base more or
less reddish ; elytra a little wider than the prothorax at the base, strongly margined, feebly rounded at
the sides, regularly punctate-striate (the punctures deep, rather coarse, and not very closely placed), the
interstices flat and very finely and sparingly punctured, black, with two bright reddish-testaceous broad
angular bands—one, starting from the lateral margin a little below the shoulder, extends transversely
inwards to the second interstice, where it turns abruptly upwards and is continued to the base, the other
some distance beyond the middle, transverse, not reaching the suture, and ending abruptly on the second
interstice (in some examples continued along the lateral margin and second interstice to the apex,
enclosing a large black spot)—the apex also reddish testaceous ; legs red, the tibize more or less infuscate ;
beneath shining, finely and sparingly punctured.

Length 43-6 millim.

Hab. Mexico, Cordova (Sallé, Hoge), Jalapa (Hége).
Captured in plenty by Herr Hoge at Jalapa.

Var. a. The prothorax, except the centre of the disc, red; elytra with the first band narrower, more curved,
and less angular, the apical third reddish testaceous, enclosing a large oblique black spot on each, the
extreme base narrowly, the reflexed lateral margins, and the suture, red.

Hab. Nicaraaua, Chontales (Belt). Two examples.

Var. b. The first band of the elytra as in var. a, but not extending to the base, the second band well defined
(as in the type), the apex red.

Hab. Panama, Bugaba (Champion). Six examples.

A bright, shining, ovate, moderately convex species; the elytra with two trans-
verse angular reddish testaceous bands; not closely allied to any previously described.
I do not consider the varieties a and ) to represent more than local races of this some-
what variable insect. In some examples the elytra are more broadly margined than in
others; in one, from Jalapa, the first and second elytral bands are connected externally
by a broad extension of the reddish testaceous colour ; the amount of this colour on the
elytra varies considerably in the long series of specimens before me.

We figure a typical example (fig. 5) from Jalapa, and one of var. a (fig. 6) from
Chontales.

41. Platydema maculipenne.

Rather longer and narrower than P. biplagiatum; the head more coarsely and not so closely punctured, the
epistoma defined posteriorly by a shallow transverse groove ; the antennee wholly red; the prothorax more
evidently punctured, red, the disc more or less broadly infuscate; the elytra more parallel, less acuminate
behind, more shallowly punctate-striate (the punctures placed closer together), the interstices more
evidently punctured, black, with two curved transverse angulated bands (one, before the middle, not
reaching the suture, and sometimes extending forwards to the base, the other some distance beyond the

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1886. 2DD

202 HETEROMERA.

middle) and the apex reddish testaceous, the lateral margins, epipleure, suture (and scutellum ) red; legs

red; beneath shining, very sparingly and finely punctured.
Length 6-63 millim.

Hab. Mexico, Jalapa (Hoge); Guatemaua, Cerro Zunil (Champion).

Four examples. Allied to P. biplagiatum, but readily distinguished by the entirely
red antenne and other characters given above.

42. Platydema dimidiatum. (Tab. IX. fig. 7.)
Platydema (?) dimidiatum, Chevr. Petites Nouv. Ent. ii. p. 194’.

Hab. Mexico 1, Cordova (Saldé).

The following are varieties of this species :—

Var. a. The broad transverse black band a little beyond the middle of the elytra not reaching the suture, and
in the form of a large separate spot on each; the subapical patch in the form of an oblique stripe (united
at the suture behind) parallel with the lateral margins.

Hab. Mexico, Cordova (Sallé, Hoge); GuaTEMALA, Sinanja (Champion).

Var. b. The two sub-basal spots on each elytron united, the transverse band broader and more angular on its
anterior and posterior margins, the base broadly margined with black for about half its width, and the
marginal streak (sometimes obsolete in var. a) longer. , .

Hab. GuatemMata, Zapote (Champion). One example.

A variable, and apparently rare, species; seven examples only are before me. The
antenne usually have the four or five basal joints, and the extreme apex of the apical
one, clear red; in the example from Zapote, which is somewhat discoloured, the two
basal joints only are red. In all the specimens the head is unequally punctured, the
anterior margin bearing a row of distinctly coarser impressions.

A typical example from Cordova is figured.

43. Platydema elegans. (Tab. IX. fig. 8.)
Platydema (?) elegans, Chevr. Petites Nouv. Ent. ii. p. 195’.

Hab. Mexico 1, Cordova (Sallé, Hoge), Jalapa, Esperanza (Hége).

Seven examples are before me, in three of which the large black spot placed a
little beyond the middle of each elytron extends inwardly, and, meeting at the suture,
forms a broad transverse stripe.

We figure a typical example from Cordova.

44, Platydema lucens. (Tab. IX. fig. 9.)

Ovate, moderately convex, bright reddish testaceous, shining. Head red, finely and not very closely punctured,
the epistoma not defined from the front, and with a row of rather coarse punctures along its anterior
margin ; antenne with the five basal joints, and the outer half of the apical one, testaceous, the rest
piceous, the ninth and tenth joints transverse; apical joint of the maxillary palpi securiform ; prothorax

PLATYDEMA. | 203

strongly transverse, distinctly margined at the sides, convex, the sides slightly rounded and rapidly
narrowing anteriorly, the anterior angles rounded, the apex. feebly emarginate, the base bisinuate, the
surface very finely, shallowly, and diffusely punctured, red, the disc (except along the base) broadly infus-
cate, midway between the outer limits of which and the lateral margin is an oblique black streak ;
scutellum triangular, red ; elytra scarcely wider than the prothorax at the base, slightly rounded at the
sides, regularly punctate-striate (the punctures rather coarse and deeply impressed), the interstices exceed-
ingly finely and rather closely punctured, testaceous, with ‘two large black spots on each side near the
base, and a very broad angulated, black band (distant from the suture, and not reaching the lateral margins,
and ramifications of which extend posteriorly along the fourth, sixth, and eighth interstices, enclosing
testaceous patches), the second interstice (except at its basal third and the extreme apex) is also black,

_ the suture (except at the basal third), and the third interstice for a short distance in the middle, reddish
brown ; legs testaceous, the outer edges of the tibic finely setose ; beneath shining, almost smooth ; epi-
pleure not extending to the apex of the elytra.

Length 5 millim.

Hab. Mexico, Cordova (Hége).

One example.

45. Platydema cordovense. (Tab. IX. fig. 10.)

Form of P. lucens. Head red, finely and not very closely punctured, the epistoma not distinctly defined ;
antenne and prothorax as in P. lucens, the disc of the latter with a broad transverse black patch, the
margins alone broadly reddish, the surface rather more evidently punctured ; elytra testaceous, with three
large black spots on each side (one near the base, one larger, angular on its basal edge, about the middle,
and one near the apex), a large subtriangular black mark immediately below the scutellum, beyond
which to the apex the suture is reddish brown, the interstices rather more evidently punctured than in

P. lucens.
Length 5 millim.

Hab. Mexico, Cordova (Saillé).

One example. Closely allied to, and from the same locality as, P. /ucens, and only
differing in the markings of the thorax and elytra. Additional material may possibly
prove it to be a variety of that species; but for the present I prefer to retain it as
distinct. |

46. Platydema unicolor. (Tab. IX. fig. 11.)

Ovate, convex, bright red, shining. Head shallowly, sparingly, and not very finely punctured, the epistoma
limited posteriorly by a shallow transverse impression; antenne with from 4-6 basal joints, and
the outer half of the apical one, red, the rest black, the penultimate joint transverse; prothorax trans-
verse, rounded at the sides, narrowing from the base, the anterior angles broadly rounded, the apex
almost straight, the base bisinuate (but not strongly) and with a distinct oblique fovea on each side, the
surface very finely, shallowly, and sparingly punctured ; scutellum scutiform; elytra about the width of
the prothorax at the base, feebly rounded at the sides, regularly punctate-striate (the punctures deep,
rather coarse, and not closely placed), the interstices exceedingly finely and sparingly punctured ; legs

red, the outer edge of the tibiz finely setose.

Length 44-57 millim.

Hab. Nicaraaua, Chontales (Janson).
Two examples.

Var. The basal joints of the antenne and the palpi more or less stained with piceous ; the basal and apical

2DD 2

204 _ HETEROMERA.

margins of the prothorax narrowly stained with black ; the entire upper surface darker ; the legs more
or less stained with piceous.

Hab. Panama, Volcan de Chiriqui (Champion). Two examples.

P. unicolor may be at once known from its allies by its unicolorous red colour,
the upper surface without spots or markings. In the four individuals before me each
one has the antenne differently coloured; one (from Volcan de Chiriqui) has the
apical joint entirely red, though the basal joints are stained with piceous.

A Chontales specimen is figured.

47. Platydema venustum. (Tab. IX. fig. 12.)

Bright reddish testaceous, broad ovate, convex, shining, glabrous. Head sparingly but very evidently punc-
tured, with several distinctly coarser impressions along the anterior margin ; prothorax comparatively broad
anteriorly, the sides more rounded than in the allied species, the surface exceedingly finely and sparingly
punctured, the lateral margins prominent, with a transverse row of four black spots (the two inner of
which are the largest) placed near the anterior margin, and another black spot on each side placed about
midway between the outer anterior one and the base; antenne with the two basal joints; and the third
and fourth joints partly, and the outer half of the apical one, red; scutellum broad, triangular; elytra
regularly and rather deeply punctate-striate, the interstices exceedingly finely and sparingly punctured,
the lateral margins reflexed and prominent, with five rounded black spots on each, arranged thus—a
discoidal row of three large and equidistant (the posterior ones sometimes smaller), and two much smaller,
one placed midway between the first two large spots but much nearer the suture, the other (longer and
narrow) similarly placed but near the lateral margin; beneath red, very evidently but sparingly punc-
tured ; mesosternum V-shaped, deeply concave within ; prosternum strongly produced ; legs red, the tibize
more or less infuscate, slightly curved, the anterior pair dilated (more distinctly in the male) towards the
apex, the outer apical angle produced and distinctly dentiform.

Length 5-6 millim., breadth 3-4 millim.

Hab. Nicaracua, Chontales (Belt, Janson).

Var, The third or posterior discoidal spot on each elytron very much longer than in the type, extending
inwardly to the first dorsal stria, and connected with the central discoidal spot by a narrow longitudinal
streak.

Hab. Panama, Volcan de Chiriqui (Champion).
_ Eight examples of the type, one of the variety. We figure one of the former.

The following species is perhaps best placed, provisionally, at the end of the genus
Platydema :—

? 48, Platydema(?) nitidum. |
Scaphidema nitidum, Chevr. Petites Nouv. Ent. ii. p. 170°.

Hab. Mexico, Yucatan (Pilate 1).

Unknown tome. “ Ovale, nigrum, nitidum, capite, palpis, antennis, pedibus corpo-

PLATYDEMA.—LIODEMA. 205

reque infra rubris; capite antice rotunde impresso, antennis elongatis, moniliformibus ;
prothorace punctulato, basi bisinuato, supra scutellum modice rotundato ; scutello
triangulari, acuto; elytris nitidis, regulariter minuteque punctato-striatis, disco con-
vexis, epipleuris nigris, supra marginatis. Long. 2 millim., lat. 2 millim— Yucatan,
a D. L. Pilate amice offertum.”

LIODEMA.

Liodema, Horn, Rev. Ten. of America north of Mexico, p. 385; F. Bates, Ent. Monthly Mag.
ix. p. 235.

Dr. Horn described this genus upon a single species from the United States; since
then six others, from Tropical South America, have been added to it by Mr. F. Bates,
and one or two from our country (identical with these) have been described by Chevro-
lat; Platydema 4-notata, Lap. & Brullé, also belongs to it.

The metropolis of Ziodema is undoubtedly in Tropical America: we have to record
seven species from our country; others doubtless still remain to be discovered in
Tropical South America.

Some of the species range over a large extent of country, from Mexico to Brazil;
one or two are common insects in the forest-region of Central America.

This genus is readily identified by the remarkable structure of the mesosternum,
and by the subserrate antenne ; the markings of the thorax and elytra vary considerably
in several species. These insects are of the same habits as Platydema, and found
in fungoid growths on decaying trees.

1. Liodema leve.
Platydema levis, Hald. Journ. Acad. Phil. ser. 2, 1. p. 101 (1848) °.
Liodema leve, Horn, Rev. Ten. of Am. north of Mexico, p. 385 *,
Hab. Norra America, North Carolina!?.—Mexico, Jalapa (Hége); GuaTEMaLa,
Capetillo (Champion).

Examples from Mexico and Guatemala agree with the description of this species.
I have not, however, seen examples from the United States.

2, Luiodema kirschi. (Tab. IX. fig. 13.)
Liodema kirschi, F. Bates, Ent. Monthly Mag. ix. p. 235°.
? Liodema fulvum, F. Bates, loc. cit. p. 236°.
Scaphidema tergocinctum, Chevr. Petites Nouv. Ent. ii. pp. 178, 243, nota °.
Liodema inscriptum, Chevr. loc. cit. p. 222 *.
? Platydema 4-notata, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 380°.
Hab. Mexico, Cordova 4, Vera Cruz (Sallé), Jalapa, Esperanza (Hoge); GUATEMALA
(Sallé *), Capetillo, Aceytuno, Pantaleon, Cerro Zunil, Senahu (Champion); Nicaraeva,

206 HETEROMERA.

Chontales (Janson); Panama, Volcan de Chiriqui (Champion).—CoLomBIa 5, Bogota 1
(coll. F. Bates); VeNnzvELA, Cumana?.

A common species in our country, whence we have received a large number of exam-
ples. LZ. kirschi and L. inscriptum (the types of which are before me) are perfectly
identical; Z. fulvwm is probably an immature example of the same species.

According to Chevrolat (op. cit. p. 243, nota), from whose collection the insect was
originally described, Platydema 4-notata, Lap. & Brullé (P. spheridioides, Dej. Cat.),
from Colombia, is a Liodema: the description of this species nearly agrees with our
insect, excepting as regards the rather smaller size, and the coloration of the antenne ;
in one or two Mexican examples, however, I find that the intermediate joints of the
antenne are slightly infuscate, instead of being wholly testaceous, as is almost invariably
the case. With the large amount of material before me, I think it extremely pro-
bable that our insect is identical with L. guadrinotatum. .

Immature examples of this variable insect are slightly shining, and often have the
elytral markings less sharply defined ; in some specimens the first red spot is crescent-
shaped (the angles towards the base) and extends obliquely to the scutellum, in others
it is oblique and sometimes ill-defined; the second spot is invariably more or less
crescent-shaped (the angles towards the apex) and extends along the margin of the
elytra to the sutural angle. The elytral strie are usually almost obsolete, or very finely
and indistinctly impressed; in one or two individuals, however, the punctures are
coarser and more distinct.

This and the following species superficially resemble the genus Spheridium, of the
Hydrophilide. A fairly typical example from Capetillo is figured.

3. Liodema obydense.
Liodema obydense, ¥. Bates, Ent. Monthly Mag. ix. p. 285°.
Scaphidema proaimum, Chevr. Petites Nouv. Hnt. i. pp. 178, 248, nota’.
? Platydema tenuicorne, Chevr. loc. cit. p. 182 (=Liodema tenuicorne, Chevy. loc. cit. p. 248

nota) *.

Hab. Mexico 2, Orizaba (Sallé), Jalapa (Hoge) ; GuateMaua, Pantaleon, Las Mercedes,

Panzos (Champion) ; Nicaragua, Chontales (Janson); Panama, Bugaba (Champion).—
Amazons, Obydos 1.

Central-American examples agree, as already noted by Chevrolat, with L. obydense
from the Amazons. .

LL. tenuicorne, Chevr., from Caracas *, is very possibly a dark variety of this species.

4. Liodema zimmermani. (Tab. IX. fig. 14.)

Ovate, moderately convex, reddish brown, slightly shining. Head with the basal half brownish black, the
frontal half red, finely and closely punctured; eyes strongly oblique, not widely separated; antenne
serrate from the fourth joint; prothorax transverse, the sides rounded in a line with the elytra and

LIODEMA. ' . 207

_ rapidly converging from the base, the base strongly bisinuate, the surface finely and rather closely punc-
tured, reddish testaceous, broadly marked with black (in the form of a large discoidal patch, united each
side externally with a broad crescent-shaped spot); scutellum red ; elytra with regular rows of very fine
shallow punctures, the interstices finely, rather closely, and very evidently punctured, black, with a
transverse strongly angulated band (starting from a little below the shoulder and extending to about
halfway across the second interstice) before the middle, and the apex broadly, testaceous, the apical patch
angulated on its anterior margin, and enclosing a short oblique brownish streak (united at the suture)

placed just before the apex ; antenne (entirely) and legs testaceous ; beneath reddish brown, shining.
Length 4 millim.

Hab. GuatemaLa, Pantaleon (Champion).

Six examples. This species slightly resembles some of the varieties of L. kirschi,
but may be readily known by the strongly angulated testaceous bands of the elytra,
and the thorax more narrowed anteriorly ; from L. horni, from the Amazons, it differs
in its narrower and more ovate form, less transverse thorax, more evidently punctured
and more shining upper surface, &c.

5. Liodema connexum. (Tab. IX. figg. 15, 16.)

Liodema connexum, F. Bates, Ent. Monthly Mag. ix. p. 236".
Platydema cruciatum, Chevy. Petites Nouv. Ent. ii. p. 1827.
Scaphidema cruciatum, Chevr. loc. cit. p. 187, nota’.
Liodema cruciatum, Chevr. loc. cit. p. 243, nota.
Platydema nigrofasciatum, Chevr. loc. cit. p. 215°.
Liodema nigro-fasciatum, Chevr. loc. cit. p. 2493, nota.

Hab. Muxico*4, Cordova, Vera Cruz (Sallé), Jalapa (Hoge); Guatemana, Purula
(Champion) ; Panama, Volcan de Chiriqui, Bugaba (Champion).—Co.omB1a 1, Bogota *.

A very variable species. The Mexican and Guatemalan examples before me all
have the median transverse black band of the elytra united at the suture (extending
anteriorly and posteriorly along the suture) and the basal band angulated on its lower
edge. The Chiriqui specimens agree well with the type of L. connexum, except that
the thorax is not black, but, as in all the Central-American examples, more or less
marked with red; mixed with these are individuals perfectly intermediate in the elytral
markings, clearly connecting the different forms, and also others in which the markings
are quite obliterated.

We figure a typical example (fig. 15) from Chiriqui, and (fig. 16) a well-marked
variety (=cruciatum, Chevr.) from Mexico.

6. Liodema serricorne. (Tab. IX. fig. 17.)
Liodema serricorne, F. Bates, Ent. Monthly Mag. ix. p. 236 am
Hab. Mexico, Jalapa, Mirador (Hége); GuatemaLa, Zapote, Pantaleon, Tamahu
(Champion) ; Nicaragua, Chontales (Belt, Janson) ; PANAMA, Volean de Chiriqui
(Champion).—GUIANA, Cayenne!; Brazit, Minas Geraes (coll. F. Bates).

208 HETEROMERA.

This species varies somewhat in the extent of the black markings on the thorax and
elytra. An example from Jalapa is figured.

7. Liodema flavo-variegatum. (Tab. IX. fig. 18.)

Broad oval, convex, testaceous, slightly shining. Head black, the frontal half more or less testaceous, finely,
shallowly, and somewhat closely punctured ; eyes strongly oblique, not widely separated ; antenn serrate
from the fourth joint, joints 7-10 and the basal half of the eleventh slightly darker; prothorax strongly
transverse, the sides rounded in a line with the elytra, the base strongly bisinuate, the surface very finely
and somewhat closely punctured, a large black mark (angular on its outer edge and extending to the
base) in the middle of the disc, and a broad crescent-shaped black mark on either side; elytra with
regular rows of fine indistinct punctures, the interstices punctured like the prothorax, marked with black,
thus—the base narrowly, from whence proceed three short longitudinal streaks (two close together about
the middle, and one near the shoulder), a rather broad angulated band (reaching the lateral margin and
confluent at the suture) about the middle, and a narrower subangulate band (not reaching the lateral
margin) before the apex, the suture also black from the subapical band to the base; legs testaceous ;
beneath reddish brown, shining.

Length 3-37 millim.

Hab. Panama, Bugaba (Champion).

Four examples. A small, broad ovate, convex species allied to L. serricorne, but
only half the size, the elytra differently marked, &c.

STENOSCAPHA.
Stenoscapha, F. Bates, Ent. Monthly Mag. ix. p. 237 (1873).

This genus was described upon a single species (S. ¢édialis) from the Amazons; we
now add another from Mexico. |

1. Stenoscapha jalapensis. (Tab. IX. fig. 19.)

Narrowly ovate, moderately convex, unicolorous reddish brown, slightly shining. Head extremely finely and
shallowly punctured, the epistoma sharply defined by a semicircular impressed line; eyes small, distant,
slightly oblique; antenne testaceous, joints 5-10 triangular; prothorax transverse, the sides scarcely
rounded, and rapidly narrowing from the base, the surface almost smooth ; elytra the width of the pro-
thorax at the base, gradually rounded at the sides, very sparingly and almost imperceptibly punctured,
with scarcely any indication of striw; legs and palpi testaceous.

Length 33 millim.

Hab. Mexico, Jalapa (Hége).

One example. The unicolorous and almost impunctate upper surface and somewhat
differently formed head and thorax will separate this species from S&. tibialis.

PANIASIS.

Mentum transverse, small ; last joint of the maxillary palpi subtriangular; antenne long, passing some dis-
tance beyond the base of the prothorax, rather slender, the third joint half as long again as the fourth
joints 5-10 long and subtriangular and decreasing slightly in length, the eleventh joint the width of but
much longer than the tenth, and bluntly rounded at the apex; head as in Platydema (P. diophthalmum,

PANIASIS.—LELEGEIS. — 209

&c.), the epistoma not clearly defined ; eyes large, subtransverse, distant ; prothorax transverse, strongly
margined ; scutellum triangular ; elytra long, distinctly margined, the humeri but little prominent, regu-
larly punctate-striate ; first joint of the anterior and intermediate tarsi long, in the male broadly expanded
and dilated, the outer third excavate above for the reception of the second joint; first joint of the posterior
tarsi very much longer than the second and third united ; tibiae smooth on their outer edge, the outer apical
angle of the anterior pair with two fine teeth (as in many Platydemata) ; prosternum horizontal, the apex
a little produced and received by the concave V-shaped mesosternum ; trochantin distinct; epipleure
extending to the apex of the elytra ; form elongate ovate; surface opaque.

A new genus is necessary for the reception of this somewhat remarkable species,
which will be recognized amongst its all... oy its elongate oval form, and by the
dilatation and extension of the first joint of the anterior and intermediate tarsi. This
may or may not be a sexual character; in Lelegeis the first joint of the anterior tarsi
is similarly enlarged. The single known species, of which one (male) example only
has been received as yet, forms one of Herr Hoge’s interesting discoveries tn Mexico.

1. Paniasis dilatipes. (Tab. IX. fig. 22,2.)

Elongate ovate, moderately convex, dull black, opaque. Head transversely impressed in front, shining, coarsely
and rather closely punctured, the anterior margin reddish brown ; antenne with the two basal joints and
the outer half of the apical one red; prothorax transverse, the sides straight from the base to a little
before the middle, thence rounded and narrowing to the apex, the base bisinuate and with a very shallow
longitudinal impression on each side, the apex deeply emarginate, the anterior angles prominent but
obtuse, the surface regularly, very evidently, and somewhat sparingly punctured; elytra long, very
slightly rounded at the sides, a little wider than the prothorax at the base, widest about the middle,
finely and shallowly punctate-striate, the interstices flat and exceedingly finely and sparingly punctured ;
femora and knees reddish brown, the tibie black, the tarsi red; beneath black, shining, sparingly
punctured, the epipleure reddish brown from the middle.

Length 6 millim. (<.)

Hab. Mexico, Jalapa (Hoge). One example.
LELEGEIS.

Mentum trapeziform, deflexed at the sides; last joint of the maxillary palpi broad, subsecuriform; antennz
reaching a little beyond the base of the prothorax, joints 5-10 about equal in length, subtriangular, and
feebly serrate within, the third joint the length of, but much narrower than, the fourth, the eleventh
joint a little narrower but much longer than the tenth, and bluntly rounded at the apex; head very short,
deeply sunk into the prothorax, the space before the eyes very narrow, the epistoma short, truncate in
front and not defined ; eyes very large, oblique, separated by a narrow space, partly hidden by the front
margin of the prothorax ; prothorax very short, strongly transverse ; scutellum large, transverse; elytra
wider than and rather more than three times as long as the prothorax at the base, rather strongly mar-
gined, the humeri prominent, the sides almost straight to beyond the middle, broadly rounded at the
apex, regularly punctate-striate ; tibie serrate on their outer edge, the two hind pairs much more
coarsely ; the anterior tibie also armed with two very fine teeth (placed close together, at some
distance before the apex), the intermediate pair curved, very obliquely cut off at the apex, and also serrate
on their inner edge, the posterior pair straight and also (finely) serrate within ; first joint of the anterior
tarsi the length of the apical one, greatly thickened and dilated, and feebly sub-bilobed ; first joint of the
posterior tarsi long, longer than the second and third together; epipleure extending to the apex of the
elytra, concave within ; trochantin distinct ; mesosternum V-shaped (the prosternal process appears to
be broken off); intercoxal process rounded ; form oblong ovate, broad, subparallel; surface shining.

This genus contains a single species from Mexico. I can suggest no near ally to this
insect, which will be readily identified by the characters given ; its affinities, however,

are clearly with Platydema.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1886. 2 EE

210 HETEROMERA.

1. Lelegeis eneipennis. (Tab. IX. fig. 23, 3.)

Oblong ovate, depressed, subparallel, brownish testaceous, shining. Head transversely impressed in front,
finely and sparingly punctured ; prothorax strongly transverse, the sides slightly rounded and gradually
converging from the base, the apex deeply arcuate emarginate, the anterior angles rounded, the base
deeply bisinuate, the surface sparingly and finely (the sides rather more coarsely) punctured ; elytra finely
punctate-striate (the punctures shallow and rather closely placed), the interstices flat and very minutely
and sparingly punctured, darker in colour than the prothorax, brown, with a distinct eneous tinge ; legs
and antenne testaceous; beneath shining, almost smooth, the ventral surface sparingly punctured, along
the sides much more coarsely punctured, the first segment also longitudinally wrinkled.

Length 6 millim. (¢.)

Hab. Mexico, Cordova (Sal/é).

One example, in somewhat immature condition.

COSMONOTA.
Cosmonota, Blanchard, Hist. Nat. des Ins. ii. p. 30 (1845) ; Lacordaire, Gen. Col. v. p. 305.

Some few species of this genus are known from Tropical America; one has been
described from Mexico, and we now add another from Nicaragua.

Cosmonota, as Lacordaire remarks, is very near Platydema, and separated from that
genus more by general facies and system of coloration than by salient characters.

These insects are of the same habits as Platydema.

1. Cosmonota nigripes. (Tab. IX. fig. 20.)
Cosmonota nigripes, Chevr. Petites Nouv. Ent. ii. p. 173°.
Hab. Mexico, Cordova (Sallé1, Hoge); British Honpuras, Belize, R. Sarstoon
(Blancaneaux) ; GUATEMALA, Zapote, El Tumbador (Champion) ; Nicaragua, Chontales

(Belt, Janson).

A large species, with the upper surface red and shining, the tibia, tarsi and antenne
(the two basal joints excepted) black.

A totally different insect, from Brazil, in Mr. F. Bates’s collection is labelled (appa-
rently in Chevrolat’s handwriting) “ C. nigripes, Chevr., type”; this species, however,
does not agree with either the published description or locality. An example from
Chontales is figured.

2. Cosmonota pubescens. (Tab. IX. fig. 21.)

Obovate, rather convex, black, shining. Head long, the epistoma long, projecting beyond the sides of the front,
and sharply defined, coarsely (the epistoma more closely and rather more finely) punctured, the intra-
ocular space shallowly impressed in the middle; labrum and mouth-parts red; antenne long, setose,
joints 7-10 subtriangular, the eleventh joint much longer than the tenth and bluntly rounded at the apex,
the two basal joints, and the outer half of the apical one, red, the rest piceous; prothorax transversely
convex, broader than long, narrowing a little anteriorly, the sides slightly rounded in the middle, and
distinctly sinuate before the base, the apex broadly but not deeply arcuate emarginate, the anterior angles
rounded, the base strongly bisinuate and with an oblique fovea on each side, the posterior angles promi-
nent but not acute, the surface finely, regularly, and sparingly punctured, and with two or three shallow

COSMONOTA.—HAPSIDA. 211

impressions on each side before the prominent lateral margins ; scutellum large, triangular, reddish brown;
elytra distinctly wider than the prothorax at the base, slightly rounded at the sides (but not in a line
with the prothorax), widest about the middle, strongly margined, the humeri prominent and slightly
grooved within (for the reception of the posterior angles of the prothorax), regularly punctate-striate (the
punctures not very closely placed, and rather coarse), the interstices flat, and finely and sparingly punc-
tured, red, the lateral margins narrowly (and the epipleurse) black ; legs long, piceous, clothed with short
scattered hairs, the knees red, the apices of the anterior tibie, and the stout tarsi beneath, somewhat
thickly clothed with fulvous hairs ; epipleure broad, extending to the apex of the elytra; beneath dark
reddish brown, shining, sparingly punctured, each puncture bearing a short fulvous hair.
Length 10 millim.

Hab. Nicaragua, Chontales (coll. F. Bates, Belt).

Three examples. This distinct species was discovered by the late Mr. Belt. C
pubescens is allied to an undescribed insect from the Amazons, and with it will probably
have eventually to be separated from Cosmonota. The long legs and antenne, and
pubescent under surface and legs, are characters not to be found in the other species
of this genus; the head, also, is somewhat differently formed.

HAPSIDA.
Apsida, Lacordaire, Gen. Col. v. p. 309, nota; F. Bates, Ent. Monthly Mag. x. p. 15 (1873).
Hapsida, Gemm. & Harold, Cat. vii. p. 1955.

This Neotropical genus, briefly characterized by Lacordaire, has been fully described
by Mr. F. Bates; five species are known, all of which are found in our country, whence
we now add four others. Hapsida has its headquarters in Central America, the genus
ranging from Mexico to Colombia. The different species are usually very common
where they occur; they have quite different habits to those of most of the preceding
genera of this group, and are found in or near the forest, upon herbage, or by beating
the withered still-attached leaves of fallen trees in new clearings; never, so far as my
experience goes, about fungi. The genus may be known among its allies by the five-
jointed club of the antennz ; some of the species are beautifully ornamented with bright
metallic green and cupreous stripes. All the species vary a good deal in size, general
outline, and colour; one new one (f7/. terebrans) is remarkable for the structure of
the secondary sexual organs of the male, which differ greatly from those of the allied
species. The tarsi are slightly dilated in the males of the larger species, similar in
both sexes in the smaller forms. The great resemblance of some of the species to
the Chrysomelide is not to be overlooked. These insects, owing to their tough
elytra and soft integuments, are difficult to pin without injury.

1. Hapsida chrysomelina. (Tab. IX. fig. 24, 2 .)
Apsida chrysomelina, Lacord. Gen. Col. v. p. 309, nota’; F. Bates, Ent. Monthly Mag. x. p. 15”.
Hab. Mexico, Cordova (Sallé, Hoge); British Honpuras, Belize (Blancaneauz) ;
GuaTEMALA, Sinanja, Senahu (Champion); Nicaragua, Chontales? (Belt, Janson).—
CoLomBia 1.

2 KE 2

212 HETEROMERA.

Compared with typical specimens the three individuals from Guatemala have the
thorax more shining; the two (male) examples, from British Honduras, are much
narrower, and with the thorax slightly rounded at the sides; both, however, merely
represent varieties of one and the same species.

Specimens of this species in the Sallé collection are labelled Apsida pulchra, Chevr.

A female example from Chontales is figured.

2. Hapsida gibbosa.

Form of H. chrysomelina; black, the upper surface unicolorous dark bronze, slightly shining. Head very
minutely and sparingly punctured; prothorax transverse, the sides and the very prominent anterior
angles strongly margined, the apex very deeply arcuate emarginate, the surface almost smooth; elytra
strongly convex, almost gibbous in the middle, the disc broadly flattened behind, with regular rows
of fine punctures (much more distinct towards the suture, and the punctures distant one from another),
the interstices almost smooth, the surface, if anything, a little brighter in tint than the prothorax, and
sometimes slightly cupreous; beneath shining black, almost smooth ; metasternum broadly and transversely
deflexed behind.

Length 7-113 millim. (¢ 2.)

Hab. Mexico, Jalapa (Hoge); Brirtisa Honpuras, Belize (Blancaneaus) ; GUATEMALA,

San Juan in Vera Paz, Chacoj, San Gerénimo, Zapote, Volcan de Atitlan, Mirandilla,

Cerro Zunil, San Isidro, El Tumbador, Las Mercedes (Champion).

An abundant species in the forest-region of Guatemala, and found in shady places in
the curled-up withered leaves of recently fallen trees; one example only from Mexico.

This insect so closely resembles H. chrysomelina, except in its unicolorous dark
bronzy upper surface, as to be scarcely distinguished from that species; I am unwilling,
however, to treat it as a variety, more especially as in the very large number of speci-
mens (about 150) before me I can find no intermediate forms. Nevertheless, like
H. chrysomelina, it varies very much in size and general shape, some examples being
very much narrower than others.

8. Hapsida seriato-punctata. (Tab. IX. fig. 25, ¢ .)

Form of H. chrysomelina; unicolorous blackish bronze, with a slight cupreous tinge, shining. Head with a
few widely scattered minute punctures; prothorax as in H. chrysomelina; elytra with regular rows of
coarse deep punctures (rather finer and placed a little closer together towards the suture), the interstices
exceedingly minutely and very sparingly punctured; beneath black, the epipleure slightly cupreous,
shining, almost smooth.

Length 103 millim. ( 2.)

Hab. Mexico, San Andres Tuxtla (Sallé).

One example. This species is allied to H. chrysomelina and H. gibbosa, but will at
once be known by the regular rows of coarse impressions (continued to the sides and
apex) on the elytra; the upper surface blackish bronze and shining; and the elytra less
gibbous in the middle. HH. seriato-punctata resembles a species of Chrysomela, e. g.
C. lamina, of Europe.

HAPSIDA. 213

4. Hapsida belti.
Apsida belti, F. Bates, Ent. Monthly Mag. x. p. 16".

Hab. Mexico, Jalapa (Hége); Guaremaa, Chacoj in the Polochic valley (Champion) ;
Nicaracua, Chontales! (Belt).

In the single example from Mexico the upper surface is much more shining than in
the individuals from Guatemala and Nicaragua.

5. Hapsida punctipennis.

Oblong ovate, convex, brownish black, shining. Head finely and sparingly punctured, reddish brown; pro-
thorax similarly coloured, finely, shallowly, and sparingly punctured; elytra with regular rows of rather
fine shallow punctures (the punctures closely placed, and more or less obsolete towards the sides and base),
the interstices sparingly and comparatively coarsely punctured (the punctures at the sides appearing
nearly as coarse as the strie and almost confused with them), the base broadly and shallowly impressed
on each side near the shoulders, the surface marked (as in H. beltz) with bright metallic green and purplish-
cupreous stripes, regularly placed along the suture only, confused and more or less confluent outwardly ;
legs black, the knees red; beneath brownish black, the epipleure rather lighter, shining.

Length 6-7 millim. (¢ 2.)

Hab. GuateMaa, Cerro Zunil, Las Mercedes (Champion).

_ Many examples. This species will be readily known from H. belti and H. purpureo-
micans by the very evident and comparatively coarse punctuation of the interstices of
the elytra; it is apparently constant in its coloration, one immature example only
showing any signs of the disappearance of the metallic colours.

6. Hapsida zneo-micans.
Apsida eneomicans, F. Bates, Ent. Monthly Mag. x. p. 16°.
Hapsida eneo-micans, Chevr. Petites Nouv. Ent. ii. p. 173”.
Hab. Mexico !, Cordova (Sallé 2), Cerro de Plumas, Jalapa (Hoge).

A common species in Mexico. This insect appears to have the elytra a little broader
behind than in the very closely allied H. purpureo-micans ; the upper surface of a
lighter metallic greenish-bronze colour.

7. Hapsida purpureo-micans.
Apsida purpureomicans, F, Bates, Ent. Monthly Mag. x. p. 16°.

Hab. Mexico, Cordova (Sallé) ; British Honpuras, Belize (coll. F. Bates), R. Hondo
(Blancaneaux) ; GuatEMALa, Senahu, Cahabon, Chacoj, Teleman, Sinanja, Sabo, Cubil-
guitz, Purula, San Gerénimo, Zapote, Las Mercedes, El Tumbador (Champion); Costa
Rica, Cache (ogers); Panama, Bugaba, Volcan de Chiriqui, David (Champion).—
Cotomsia !.

This is one of the most perplexing species of ‘Tenebrionidz I have yet had to deal
with; the examination, however, of a very large amount of material, including numbers
of specimens collected together in the same localities, has convinced me that it can only

214 HETEROMERA.

be treated satisfactorily as an extremely variable insect, and that the numerous varieties
all represent one and the same species. ‘The three following are here noticed :—

1. Upper surface bright bronzy cupreous, or (rarely) metallic purple; the thorax
reddish brown or black.

2. Upper surface less shining, duller bronze; the thorax reddish brown.

3. Elytra marked (as in ZH. belti) with bright metallic green and purplish cupreous
(often with golden and bluish reflections) stripes, regularly placed along the
suture, but confluent and irregular outwardly.

The most vividly coloured examples are from Chiriqui; mixed with these, as with
the specimens from the other localities, are many in which the elytra are unicolorous,
but often with traces at the margins or along the suture of metallic green tints. The
species varies in length from 33-7 millim., and in breadth from 2-37 millimetres. The
beautiful vivid colours of the elytra, as exhibited in this species, are evidently more or
less evanescent, and cannot, unless supported by other characters, be regarded as of
specific value.

The type of this species, contained in Mr. F. Bates’s collection, is without abdomen
and in a very mutilated condition; it is of a rather more vivid purple colour than any
of our Central-American examples, and with only slight greenish reflections.

Small examples closely resemble Gonospa phedonoides.

8. Hapsida terebrans. (Tab. IX. fig. 26, ¢.)

Closely allied to H. purpureo-micans, and differing as follows:—Shorter and broader in form; the elytra
relatively shorter and more rounded at the sides, usually marked (as in var. 3 of H. purpureo-micans)
with bright metallic green and purplish cupreous more or less evanescent stripes, regularly placed along
the suture but confluent and irregular outwardly, the rows of impressions represented by rather coarse
distantly placed punctures (which are most distinct on the posterior portion of the disc, and obsolete at
the base, apex, and sides); in the male the horny sheath of the cedeagus encloses a second sheath,
the latter being divided at the apex into two very long spine-like processes, near the middle of which
on each side externally are placed three or four bristles; in the female the accessory sexual organs are
formed externally as in H. purpureo-micans, and armed (as usual) on each side a little before the apex
with a stout styliform process and a few short bristles; the rest as in H. purpureo-mucans.

Length 3-44 millim. (¢ 2.)

Hab. British Honpuras, Belize (Blancaneaus, coll. Ff. Bates); Guatemaa, Teleman,
Chacoj (Champion); Nicaracua, Chontales (Janson); Panama, Volcan de Chiriqui
(Champion).

Many examples. Mixed with H. purpureo-micans, and found in many of the localities
in company with it, specimens are occasionally to be met with of a more rounded and
shorter form: these are coloured exactly as in var. 3 of that species, and, in spite of
the apparent great dissimilarity in outline, seemed to me at first to represent another
variety of that inconstant and variable insect. In connection, however, with the shorter
and rounder form I find that the accessory sexual organs of the male differ greatly

HAPSIDA. 215

from those of H. purpureo-micans: in H. terebrans they are formed as above described ;
in H. purpureo-micans as in all the allied species examined, ¢. g. the sheath simple and
pointed at the apex. In many of the male examples of H. terebrans before me the
inner bilobed sheath (enclosing the simple central tube) is extruded and plainly visible.

The dissection of a good many species of Tenebrionide has not yet revealed to me any
structure of the male organs similar to what is to be found in H. terebrans; in the cedeagus
of Pedinus I have found a long and stout spine-like process on each side of, but not
attached to, the inner tube, the latter being enclosed in a sheath of the ordinary simple
character. In Z. terebrans there appear to be two horny sheaths *, the outer one short and
capable of expansion when the long bilobed inner one is extruded; I can find nothing
analogous to this in the other species of the genus dissected, all appear to have the
outer sheath simple at the apex (and apparently not capable of expansion) and without
trace of an inner one. Dissection of other allied forms may probably reveal a similar
structure. We thus have two apparently very closely allied species furnished with very
dissimilar male sexual organs.

In this species the elytra constantly exhibit traces of the metallic stripes, which are
not entirely obliterated in any of the examples before me. We figure a male example
from the Volcan de Chiriqui; also the male (fig. 26 a) and female (fig. 26 6) secondary
sexual organs.

9. Hapsida boucardi. (Tab. IX. figg. 27,2; 28,6.)

Apsida boucardi, F. Bates, Ent. Monthly Mag. x. p. 17 -
Cosmonota geminata, Chevr. Petites Nouv. Ent. ui. p. 173°.
Hapsida geminata, Chevy. loc. cit. pp. 178, 182, nota.
Cosmonota grammica, Chevr. loc. cit. p. 173°.
Hapsida grammica, Chevyr. loc. cit. p. 178, nota.

Hab. Muxtco 2? (coll. F. Bates +), Santecomapan, Cordova (Sallé), Jalapa (Hoge) ;
British Honpuras, Belize (coll. F. Bates, Blancaneaux); GuatemMata, El Tumbador,
Zapote, San Gerénimo, Teleman, Senahu (Champion); Panama, Bugaba, Volcan de

Chiriqui, David, near the city (Champion).

Generally distributed in our country. The long series of examples connect the
numerous varieties of this insect. The elytra in some examples have one dorsal
brownish stripe, in others two black stripes; rarely the elytra are entirely testaceous.
The variety with one stripe (sometimes obsolete) often has the disc of the thorax more
or less marked with black anteriorly: this form I have only seen from Cordova, where
also the two-striped variety is found.

Examples from Guatemala southwards have smoother elytra, and the punctures not
sO closely placed. Jalapa specimens are comparatively narrow and have the rows of
punctures on the elytra deeply impressed. H. boucardi, like the other species of the’

* In the figure (26a) our artist has not indicated the division between the two.

216 HETEROMERA.

genus, varies considerably in general shape. Fully coloured examples have the upper
surface reddish testaceous; the suture, two dorsal stripes (sometimes connected before

the apex), and the lateral margin, black. er
We figure a male of the striped form (fig. 28) from Volcan de Chiriqui, and a female

of the pale variety (fig. 27) from Cordova; also (fig. 28a) the whole of the cedeagus
of the male.

GONOSPA.

Gonospa, F. Bates in litt.

Mentum trapeziform, the sides strongly deflexed; last joint of the maxillary palpi broad and swollen, sub-
securiform, the apex slightly concave; antennz short, not reaching the base of the prothorax, the six
outer joints flattened and broader and widening outwardly, joints 6-10 transverse and subserrate within,
the eleventh joint twice the length of but slightly narrower than the tenth, and broadly rounded at the
apex; head slightly deflexed, short, broad; epistoma broadly truncate in front; labrum partly hidden
from above, without visible connecting clypeus; eyes convex, widely separated, rounded, very slightly
emarginate in front, and free of the anterior margin of the prothorax; prothorax strongly transverse, the
lateral margins swollen and reflexed, the base strongly bisinuate, with a shallow oblique fovea on each
side, and closely embracing the elytra; scutellum small, triangular; elytra slightly wider than the pro-
thorax at the base, short, convex, shallowly punctate-striate, and with a marginal row of irregular
impressions ; legs short; tibiz slightly curved, the spurs small; tarsi short, the first joint of the posterior
pair short, the length of the two following joints united ; prosternum broad, horizontal, the apex rounded,
slightly produced, and margined within in G. phedonoides, still broader and triangularly produced in
G. amazonica and G. brasiliensis; mesosternum broad, the apex slightly produced and semicircularly
emarginate in G. phadonoides, V-shaped and deeply excavate within in G. amazonica and G. brasiliensis ;
intercoxal process very broad, subtriangular; trochantin distinct; epipleure abruptly ending at the last
ventral suture ; form short oval, convex; surface shining, metallic.

This new genus, already recognized by F. Bates, contains three species, one from the
State of Panama, the other two from the Amazons*. From Hapsida, with which it

* Gonospa amazonica.

Bronze-black, shining; head coarsely and rather closely punctured, the epistoma defined posteriorly by a
deeply impressed groove; prothorax moderately transverse, the apex rather deeply emarginate, the
anterior angles prominent, the surface rather coarsely but not closely punctured; elytra with regular
rows of coarse shallow punctures, and a marginal row of coarse irregular impressions, the interstices
exceedingly finely and sparingly punctured, the sides broadly and indefinably dark reddish brown:
beneath shining, finely and sparingly punctured, the prosternum, the metasternum in front, and the
anterior margin of the first three ventral segments with coarser impressions. Length 4 millim.

Hab. Amazons, Santarem (H. W. Bates).

A single example in Mr. F. Bates’s collection, labelled as above. Allied to but distinct from G. phadonoides ;
differing in the structure of the pro- and mesosternum, the sculpture of the upper surface, &c.

Gonospa brasiliensis.

Closely resembling G'. wmazonica, and differing as follows :—Larger, colour dark bronze; prothorax less
regularly punctured, the disc and sides with coarser impressions, the anterior angles more obtuse and
rounded ; elytra unicolorous bronze, the interstices still more finely punctured, the impressions along the
margin shallower and not so regularly placed; the ventral surface more regularly punctured and without
coarser impressions along the anterior margin of the first three segments; the rest as in G. amazonica.
Length 63 millim.

Hab. Amazons, Santarem (H. W. Bates).

A single specimen in Mr. F. Bates’s collection.

GONOSPA.—PHALERIA. 217

agrees in the structure of the meso- and metasternum, &c., it will be known by its
indistinct clypeal membrane, differently shaped head, rounded eyes, six-jointed antennal
club, &c. Gonospa resembles a genus of Chrysomelide, e.g. Phedon. The elytra bear
just within the reflexed lateral margins a series of coarse irregular impressions, as in
many Carabide. Same habits as Hapsida.

1. Gonospa pheedonoides. (Tab. IX. fig. 29, 3.)

Short oval, convex, above metallic bronzy cupreous, shining. Head coarsely and rather sparingly punctured,
the epistoma indistinctly defined; prothorax strongly transverse, the apex broadly but feebly emarginate,
widest at the base, narrowing a little anteriorly, the sides slightly rounded before the middle, thence
straight to the base, the surface rather coarsely but not closely punctured, the disc smoother ; elytra with
regular rows of rather fine distantly placed shallow punctures, and an interrupted marginal row of
irregular, coarsish impressions (placed just within the reflexed margins), the interstices flat and exceedingly
finely and sparingly punctured, the base shallowly impressed on each side in the middle; antenns with
the four basal joints and the extreme apex red, the rest black; legs dark reddish-brown or black, the
knees and tarsi more or less red; inner side of the posterior tibie in the male feebly emarginate before
the apex; beneath dark reddish-brown, shining, very finely and sparingly punctured.

Length 33-43 millim. (¢ 9.)

Hab. Panama, Bugaba (Champion).

Two examples.

Group TRACHYSCELIDES.

This group contains only the well-known genus Phaleria (represented on the coasts
of almost every part of the world, except Australia, and also in many oceanic islands),
and Bycrea and Scaptes. Trachyscelis and Anemia, represented in North America, as
well as in Europe, have not yet been received from our country.

PHALERIA.

Phaleria, Latreille, Hist. Nat. Crust. et Ins. x. p. 300 (1804) ; Mulsant, Hist. Nat. Col. de France,
Latigénes, p. 190; Lacordaire, Gen. Col. v. p. 286; Horn, Rev. Ten. of Am. north of Mexico,
p. 875; Lec. & Horn, Class. Col. N. A. p. 383.

Numerous species of this genus have been described from Europe, Madeira, the Cape
Verd and Canary Islands, Africa, Madagascar, North and South America, the Antilles,
Galapagos Islands, &c. Nine species have been described from North America; one
only from Central America, whence we now add eight others. The different species
are found beneath decaying seaweed or at the roots of herbage on sandy sea-coasts, and
are apparently not very widely distributed ; one new species described here is, however,
found both on the Atlantic and Pacific coasts. Some of the species inhabiting
North and South America have the margins of the thorax and elytra fringed with

hairs.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1886. OFF

218 HETEROMERA.

* Base of the thorax margined.

a. Elytra coarsely punctate-striate.

1. Phaleria guatemalensis. (Tab. X. fig. 1.)

Ovate, convex, reddish-testaceous, shining. Head transversely impressed in front, sparingly and somewhat
coarsely punctured ; prothorax transverse, the sides slightly rounded and converging from the base, the
apex deeply emarginate, the anterior angles prominent, the base very distinctly margined and with a
deeply impressed oblique fovea on each side, the surface smooth and impunctate, the base often
narrowly piceous; elytra scarcely wider than the prothorax at the base, the humeri not prominent,
coarsely punctate-striate, the scutellar stria deeply impressed, the interstices feebly convex and almost
impunctate, the disc with a large common broad black or piceous patch about the middle extending more
or less broadly to the base; legs and antenne testaceous.

Length 43-63 millim. (¢ 9.)

Hab. Guatemata, Champerico (Champion).

Many examples. This species will be readily known by the ovate form, the base of
the thorax very distinctly margined, and the very coarsely punctate-striate elytra; the
specimens vary but little in the maculation of the elytra, in one only the common black
patch does not extend to the base.

b. Elytra finely striate.
2. Phaleria panamensis.

Elliptic, moderately convex, testaceous, rarely piceous, rather shining. Head finely and somewhat closely
punctured; prothorax transverse, the sides slightly rounded and converging from the base, the base
narrowly and finely margined and with an oblique fovea on each side, the surface very finely, shallowly,
and sparingly punctured, the base often narrowly (rarely broadly) piceous; elytra slightly wider than the
prothorax at the base, finely striate, the strie punctured towards the base, more deeply impressed behind,
the interstices (if viewed with a strong lens exhibiting a very closely wrinkled surface) finely and some-
what closely punctured, colour very variable—from testaceous with a triangular discoidal patch on each
elytron behind the middle and the suture between piceous or black, to black with the margins and shoulders
alone testaceous (as in P. dytiscoides); legs and antennz more or less testaceous; beneath reddish-
brown, shining, finely and rather closely punctured.

Length 5-5? millim. (¢ 2.)

Hab. Panama, near the city, San Miguel in the Pearl Islands ( Champion).

A very variable insect, as regards the coloration of the thorax and elytra; the base
of the thorax often more or less piceous, the elytra exhibiting every intermediate grade
between testaceous with a dark discoidal spot on each, to black with the margins only
testaceous. ‘The variety coloured as in P. dytiscoides may be known from that species
by the comparatively shorter and broader form; the thorax with the base only piceous,
the anterior half of the disc always more or less testaceous.

I found this species in the greatest profusion on the beach at Panama ; but met
with only one example in the Pearl Islands.

3. Phaleria dytiscoides. (Tab. X. fig. 2.)

Elongate oval, moderately convex, reddish-brown or black, rather shining. Head sparingly and finely punc-
tured; prothorax transverse, the sides feebly rounded and converging from the base, the apex emarginate,

PHALERIA. 219

the anterior angles obtuse, the base finely margined and with an oblique fovea on each side, the surface
exceedingly finely and sparingly punctured, the sides rarely marked with reddish-testaceous anteriorly ;
elytra the width of the prothorax at the base, the humeri not prominent, narrowly and finely striate, the
strie punctured before the middle, deeply impressed behind, the interstices flat (if viewed with a strong
lens exceedingly minutely and closely wrinkled) and finely and sparingly punctured, black, with the lateral
margins testaceous throughout (the testaceous colour extending a little upwards on each side of the suture
at the apex and sometimes a little inwards at the base), or (rarely) entirely reddish-brown or black with
the apex occasionally testaceous; legs and antenne variable in colour, piceous or testaceous; beneath
reddish-brown, finely and not very closely punctured, shining.
Length 44-7 millim. (¢ 9.)
Hab. British Honpuras, Belize (coll. F. Bates), mouth of the R. Sarstoon (blan-
caneaux) ; GUATEMALA, Champerico (Champion) ; Nicaragua, Corinto (Champion).

Var. Smaller; the sides of the prothorax broadly testaceous; elytra with about the three outer interstices
testaceous, the testaceous colour extending inwards at the base and upwards at the apex.

Hab. Guatemata, San José (Champion); Nicaragua, Corinto (Champion).

A variable species. In the majority of the specimens the two outer interstices of the
elytra are testaceous ; others have only the apex testaceous, or are wholly reddish-brown
or black. All the examples from San José differ as above described; at Corinto the
various forms were collected together. 1 met with this species in great profusion on
the Pacific coast at Champerico, beneath refuse on the beach, the insect readily taking
to wing when disturbed; it was not uncommon at San José and Corinto. Examples
from the Atlantic coast, from British Honduras, agree perfectly with others found on
the Pacific, at Champerico. We figure an example from British Honduras. P. longula,
Lec., from Mississippi Island, Gulf of Mexico, to judge from the description, must be
allied to P. dytiscoides.

4. Phaleria marginipennis.

Closely allied to P. dytiscoides, and differing as follows :—Rather larger and broader; the prothorax rather
more rounded at the sides anteriorly, the sides straighter and more parallel behind the middle, the base
narrowly margined; the elytra distinctly wider than the prothorax at the base, the humeri prominent,
more or less distinctly margined with testaceous.

Length 53-7} millim. (¢ 2.)

Hab. Mexico, Tres Marias Islands (Forrer).

Six examples, agreeing pretty closely; in all the elytra are distinctly wider than the
base of the thorax, thus differing from P. dytzscoides.

5. Phaleria opacicollis.

Form of P. dytiscoides, piceous black, rather dull. Head rather closely and not very finely punctured ; pro-
thorax broad, transverse, widest a little before the base, the sides distinctly rounded from the base and
not much narrowed anteriorly, the anterior angles somewhat prominent though obtuse, the base narrowly
margined and with an oblique fovea on each side, the surface dull (owing to the exceedingly minutely
wrinkled sculpture) and evidently though very finely and sparingly punctured, the sides slightly paler 3
elytra scarcely wider than the prothorax at the base, the humeri not prominent, finely striate, the strice

2FF 2

220 HETEROMERA.

punctured before the middle, deeply impressed behind, the interstices flat, exceedingly minutely and closely
wrinkled (more evident than on the prothorax), and with numerous scattered very fine punctures, the
margins reddish-testaceous, the testaceous colour extending (as in P. dytiscoides) a little upwards along
the suture at the apex and a little inwards at the base.

Length 6 millim.

Hab. Panama, San Miguel in the Pearl Islands (Champion).

One example. Closely allied to P. dytiscoides, but with the thorax comparatively
broader (especially anteriorly), the sides more rounded, and the surface duller; the
elytra (as in P. dytiscoides) margined with testaceous.

6. Phaleria pilatei.
Phaleria pilatei, Chevr. Comptes Rendus de la Soc. Ent. Belg. xxi. p. ccxlix’.

Hab. Mexico, Yucatan (Pilate 1).

Unknown to me. According to the description (Joc. cit.) this is an elongate, mode-
rately convex species; the upper surface testaceous and shining, the eyes black, the
thorax narrowly margined at the base, the elytra finely striate.

7. Phaleria pacifica.

Elongate oval, convex, black, shining. Head transversely impressed in front, finely and sparingly punctured,
the orbits reddish ; prothorax rather broader than long, comparatively elongate, widest a little before the
base, the sides almost straight behind the middle, rounded and narrowing anteriorly, the apex feebly
emarginate, the anterior angles almost rounded, the base narrowly margined and with a longitudinal
impression on each side, the surface exceedingly finely and sparingly punctured, the margins sometimes
lighter ; elytra scarcely wider than the prothorax at the base, the humeri not prominent, regularly striate,
the strie punctate before the middle and as usual more deeply impressed behind, the interstices very
finely and somewhat closely punctured ; legs and antennz ferruginous, the femora and tibie more or less
infuscate.

Length 53-6 millim. (¢ 2.)

Hab. GuateMaLa, Champerico, San José (Champion); Nicaraaua, Corinto (Cham-
pion).

Hight examples. This species may be known by its shining black colour, elongate
and convex form, and comparatively long thorax; it is apparently allied to P. picipes,
Say, from the southern and middle Atlantic coast.

** Base of the thorax not margined.
8. Phaleria neotropicalis. (Tab. X. fig. 3.)

Hliptic, moderately convex, testaceous, dull, scarcely shining. Head piceous, the anterior half more or less
reddish-testaceous, finely and sparingly punctured; prothorax transverse, the sides very feebly rounded
and obliquely converging from the base, the apex arcuate emarginate, the anterior angles prominent, the
base not margined and with a shallow oblique fovea on each side, the surface almost impunctate, the base
sometimes very narrowly darker ; elytra scarcely wider than the prothorax at the base, the humeri rounded
and not prominent, widest a little before the middle, very finely striate, the strix obsolete before the
middle, lightly impressed behind, the interstices flat, the entire surface (if viewed with a lens) exceedingly
minutely and closely wrinkled, the dise with a large common black or piceous scutiform patch extending

PHALERIA.—BYCREA. 221

more or less broadly to the base; legs and antenne testaceous, the three basal joints of the anterior tarsi
slightly dilated in the male.
Length 33-43 millim. (¢ 2.)

Hab. Guatemata, San José, Champerico (Champion).

This distinct little species may be known by the sculpture of its rather dull upper
surface, the base of the thorax not margined, and the faintly impressed elytral strie ;
the markings of the elytra are very constant in the seven examples before me.

9. Phaleria insularis. (Tab. X. fig. 4.)

Elliptic, moderately convex, testaceous, slightly shining. Head piceous, the anterior margin paler, sparingly
and not very finely punctured; prothorax transverse. the sides converging from the base, slightly rounded
before the middle, almost straight behind and also just before the apex, the anterior angles prominent, the
base not margined and with a shallow oblique fovea on each side, the surface exceedingly finely and
sparingly punctured, the base sometimes very narrowly piceous ; elytra distinctly wider than the prothorax
at the base, the humeri prominent, finely and narrowly striate, the strie more or less obsolete before the
middle, lightly impressed behind, the interstices flat, each elytron with a short longitudinal or oblique
brown or piceous streak a little beyond the middle, the suture narrowly and the first interstice for a short
distance beyond the middle also piceous; legs and antenne testaceous, the three basal joints of the anterior
tarsi distinctly dilated in the male.

Length 5-53 millim. (3 @.)

Hab. Mexico, Tres Marias Islands (Forrer).

This species is closely allied to P. debilis, Lec., from Cape San Lucas, but, judging
from the description, distinct. P. debilis is said to have the elytra not wider than the
thorax at the base; in P. insularis the thorax, though transverse, is comparatively
narrow, distinctly narrower than the elytra at the base.

The seven examples before me scarcely vary in the maculation of the elytra.

BYCREA.

Bycrea, Pascoe, Proc. Ent. Soc. Lond. 1868, p. xii; E. Duges, Ann. Soc. Ent. Belg. xxix. pt. 2,
pp. 51-54, t. 4. figg. 1-25 (1885).

This genus, very briefly described by Mr. Pascoe, contains a single species, B. villosa,
from Mexico. Dr. E. Dugés (op. cit.) has quite recently given a full account of the.
life-history of this species, describing and figuring the larva and pupa, as well as the
perfect insect—this very careful observer having found both the larva and the perfect:
insect “in the nests of an ant, Atta cephalota, the-larva appearing to live on the
detritus of Acacia albicans, of which the nests are in great part formed.”

In Bycrea the anterior and intermediate tibie are each furnished at the inner apical
angle with a single long and stout curved spur (described by Mr. Pascoe as “ tarsi
unicalcarati”), and the inner apical angle of the posterior tibiz with a shorter spur;
the first joint of the anterior tarsi greatly dilated in the male; the upper surface (in
fresh specimens) densely clothed with golden brown decumbent hairs.

222 HETEROMERA.

1. Bycrea villosa. (Tab. X. fig. 5,3.) |
Bycrea villosa, Pascoe, loc. cit. p. xii; E. Dugés, loc. cit. p. 51, t. 4. figg. 1-25 *.

Hab. Mextco1, Matamoras (coll. F. Bates), Izucar, Puebla (Sallé), Guanajuato
(Dugés*, Sallé), Tupataro (Dugés 2).

SCAPTES.
Scaptes (Eschsch.), Dej. Cat. 8rd edit. p. 215.

Mentum transverse, rounded at the sides, broadly arcuate emarginate in front, the anterior angles produced and
subacute; ligula strongly exserted ; labial palpi stout, the last joint ovate; maxillary palpi stout, the last
joint subsecuriform ; mandibles broad, feebly cleft at the apex; antenne very short, only reaching to the
middle of the prothorax, setose, the joints closely articulated, the two basal joints stout, the second joint
much shorter than the first, the third joint longer and thinner than the second, joints 47 short, about equal
in length, and slightly widening outwardly, joints 8-11 distinctly wider and strongly transverse, the
eleventh joint slightly narrower than the tenth and rounded at, the apex; head very deeply sunk into the
prothorax, the epistoma deeply but not broadly emarginate and not defined from the front, the antennary
orbits reaching halfway across the coarsely faceted eyes, extending outwardly, and meeting the anterior
angles of the prothorax (the eyes appearing at first sight to be completely divided); prothorax closely
embracing the elytra, broad, transverse, the apex very deeply arcuate emarginate, the base rounded in
the middle and broadly produced, between which and the posterior angles sinuate, and closely ciliated
(the fringe of scaly hairs hiding the base of the elytra); scutellum not clearly defined; elytra broad, the

width of or scarcely wider (S. cayennensis*) than the prothorax at the base, widest about the middle,
thence rapidly narrowed to the apex, the base obliquely emarginate for the reception of the centre of the
base of the prothorax and the inner third distinctly margined; legs short, coarsely asperate and setose ;
tibie rather slender, the anterior pair slightly flattened and with the outer apical angle produced into a
very strong broad tooth, the apex of which is bluntly rounded (as in certain South-American Phaleria) ;
tibial spurs strong, rather short; tarsi spinous beneath, similar in both sexes, the first joint of the
posterior pair a little longer than the second and third united; epipleure distinct to the last ventral
suture, very narrow and almost obsolete beyond ; prosternum broad, declivous behind, the apex slightly
produced ; middle cox widely separated, the mesosternum broadly but not deeply emarginate ; intercoxal
process broad, rounded at the apex; trochantin distinct; form broad ovate, the upper surface densely
clothed with scales and very short scattered decumbent hairs. Winged.

This genus, undescribed till now, contains two Tropical-American species, one of
which appears to be widely distributed and extends into our country as far north as

Northern Mexico. The two species are closely allied; both are of small size, broad
ovate form, the upper surface densely clothed with grey or brownish scales, the anterior

* Scaptes cayennensis.

Scaptes cayennensis, De}. Cat. 3rd edit. p. 2151.

Narrower and more shining than S. squamulatus; dark reddish-brown; the upper surface (when denuded of
scales) not so regularly punctured; the elytra (in the Cayenne example) very feebly or obsoletely costate
and with irregular rows of small granular elevations, the surface clothed with light brown or cinereous
scales and with numerous decumbent hairs; beneath shining, closely and muricately punctured; the rest
as in S. squamulatus.

Length 43 millim.

Hab. Guiana, Cayenne’ (coll. F. Bates); ? Curtz (coll. F. Bates).

Two worn examples in Mr. F. Bates’s collection differ as above from S. squamulatus ; the locality “‘ Chili”
seems to me very doubtful.

SCAPTES. 223

tibie with the outer apical angle broadly produced. Scaptes appears to me to be
best placed in the “ Trachyscelides,” though agreeing in some of its characters with the
‘* Hopatrides ;” it would seem to approach the North-American genus Ammodonus, Muls.
(a genus known to me from description only), in many of its characters.

1. Scaptes squamulatus. (Tab. X. figg. 6; 6a, labium; 60, maxilla and
maxillary palpus.) :

Broad oval, moderately convex, the entire upper surface (when denuded of scales) dull black and closely and
somewhat irregularly punctured, densely clothed with light grey or brownish scales (often more or less
variegated with lighter patches or spots) and scattered short decumbent club-like hairs; prothorax rounded
at the sides, the sides converging anteriorly from the middle, the anterior angles broad and very prominent
though obtuse, the posterior angles subrectangular, the lateral margins finely denticulate, the entire base
fringed with short golden-brown hairs; scutellum shining; elytra closely and regularly punctured (more
regularly and closely than the prothorax), without traces of strie, with numerous rows of very short,
decumbent hairs, and (in clean fresh examples) with about three or four interrupted rows of light grey
and brownish spots (the light and dark spots being placed alternately in the same row); beneath dark
reddish-brown or piceous, slightly shining, coarsely and rather closely muricately punctured, each
puncture bearing a short cinerous or golden decumbent hair.

Length 44-6 millim.

Hab. Mexico, Presidio (Forrer), Vera Cruz (Sallé); Nicaracua (Sallé), Chontales

(Belt); Panama, Tolé (Champion).—Cotomsia (coll. F. Bates); Amazons, Santarem

(H. W. Bates).

The numerous specimens before me from the above localities appear to me to
represent one rather variable species; some examples have the rows of light and dark
spots much more clearly indicated, one of which, from Chontales, is figured ; Amazonian
specimens agree well with others from Central America.

I met with this species not uncommonly at Tolé, beneath stones on the open savannas
of the low country.

Group BOLITOPHAGIDES.

‘This group is represented in our country by a few species, all but one of which
appear to be undescribed ; not a single species has hitherto been recorded from Central
America. ‘These species are contained in three genera, one of which is described as
new. In Calymmus and Ozolais the third and fourth ventral segments have not the
usual distinct coriaceous hind margin.

The different species are found beneath bark or in fungoid growths on trees.

Eutomus, Lac. (= Rhipidandrus, Lec.), represented by one or two species in Mexico
and Guatemala, was formerly included in this group by Leconte and Horn; more
recently, however (cf. Class. Col. N. A. p. 232), these authors have included it in the
Cioide; Lacordaire placed it in the Scolytidee ; Eutomus may be known from the
“ Bolitophagides ” by the four-jointed tarsi and the structure of the antennz.

224 HETEROMERA.

XENIUS.

Mentum small, trapeziform, longitudinally raised in the middle, the sides deflexed ; ligula broadly exserted ;
‘labial palpi very stout; last joint of the maxillary palpi triangular, broad; mandibles truncate at their
apex; head long, broad, not deeply sunk into the prothorax, the epistoma broadly truncate in front and
distinctly defined, similar in both sexes, the antennary orbits rounded and reaching halfway across the rather
narrow eyes; antenne 11-jointed, gradually widening outwardly, the first joint rather stout and ovate, the
second very short, the third more than twice as long as tbe second, the fourth and fifth shorter, the sixth
rather wider and subtriangular, the seventh and eighth broader and shorter, the ninth and tenth transverse,
the eleventh twice the length of the tenth and rounded at the apex; prothorax rather broader than long,
the apex deeply and broadly emarginate, the anterior angles very prominent, the base strongly bisinuate
and closely embracing the elytra, the lateral margins crenulate ; scutellum large, scutiform, not entering
the middle of the base of the prothorax; elytra convex, broad, very much wider than the prothorax at
the base, the humeri broadly rounded, with irregular rows of coarse smooth tubercles; legs long, stout,
coarsely roughened; tibie slightly curved at the apex, the spurs very short and almost obsolete; tarsi
clothed with silky hairs beneath, the first joint of the posterior pair rather longer than the second and
third united, the last joint longer than the three others together; prosternum broad, horizontal, margined
within, the apex produced and received by the broadly concave face of the mesosternum ; intercoxal
process broad, rounded; epipleure very broad at the base, narrowing behind, and abruptly ending at the
last ventral suture; upper surface tuberculate, glabrous; third and fourth ventral segments with distinct

coriaceous hind margin.

This genus will be readily identified from our figure; it contains a single species
from Nicaragua. I can suggest no near ally to Xenius, though an undescribed genus
from Colombia slightly approaches it; the genus should be placed near Bolitophagus.

1. Xenius scabripennis. (Tab. X. figg. 7; 7a, labium ; 76, maxilla and

maxillary palpus.)

Dull black, glabrous. Head coarsely and shallowly rugulose ; prothorax widest before the middle, the sides
slightly sinuate before the base and with about five or six crenatures, the anterior angles very prominent,
broad, and much produced, the posterior angles subacute, but not outwardly directed, the disc with a very
broad, transverse, sinuous depression before the base and a shallow central groove, the surface coarsely
but shallowly rugulose, and with some small longitudinal elevations on each side of the anterior disc, the
broad basal depression almost smooth; scutellum shallowly and finely punctured; elytra more shining
than the prothorax, subparallel, widest a little beyond the middle, thence obliquely narrowing to the apex,
with irregular rows of rather coarse rounded shining tubercles and numerous sinuous rows of impressions
(the latter are shallowly impressed towards the suture, but become deeper and coarser towards the sides) ;
legs and antenne black; ventral surface shining, finely and shallowly punctured, and longitudinally
wrinkled.

Length 8 millim. (¢ 9.)

Hab. Nicaragua, Chontales (Belt, Janson).
Four examples.

CALYMMUS.
Calymmus, De}. Cat. 3rd edit. p. 215; Pascoe, Ann. & Mag. Nat. Hist. 4th ser. viii. p. 349 (1871).

Some few species of this Tropical-American genus are known; one of these is gene-
rally distributed in our country, whence we now add another species. C. (Zoxicum)
berardi, Montr., from Lifu, belongs to another genus. Calymmus may be known by

CALYMMUS. 225

the long stout horn, projecting horizontally over the head, on the front of the thorax
in both sexes.

1. Calymmus cucullatus.

Calymmus cucullatus, Pascoe, Ann. & Mag. Nat. Hist. 4th ser. viii. p. 349, t. 14. f. 87.
Calymmus asperulus, Pascoe, loc. cit. p. 350°.

Hab. Mexico, Tehuantepec (Sallé), Cerro de Plumas (Hége); Guatemana, San Geré-
nimo, San Joaquin, Balheu (Champion); Nicaragua, Chontales (Belt, Janson, coll. F.

Bates); Panama, Volcan de Chiriqui (Champion).—Cotomsta 2 (coll. F. Bates); Braziu,
Rio Janeiro }.

Judging from the long series of examples before me, amongst which individuals are
to be found of a comparatively longer form, and others in which the thoracic horn is
rather more expanded and sub-bifurcate at the apex, I do not think C. cucullatus and
C. asperulus (described from single examples and the types of which I have examined)
can be maintained as distinct, some of our specimens being intermediate.

I met with this insect sparingly in Guatemala and the State of Panama, beneath
loose bark.

2. Calymmus variegatus. (Tab. X. fig. 8.)

Elongate, subparallel, black, variegated with greyish-ochreous scales. Head with the antennary orbits greatly
swollen, raised, and subangularly extended in front; antenne with the closely articulated tenth and.
eleventh joints large and stout; prothorax as long as broad, the sides very coarsely crenulate, scarcely.
narrowing anteriorly, the anterior angles very prominent and extended forwards as far as the front of the:
eyes, the posterior angles broad and subacute and outwardly directed, the disc gibbous, with a distinct
central groove and two stout irregular tubercular elevations on each side about the middle, the horn in
front long and stout and shovel-shaped at the apex, the surface (like the head) densely and uniformly
clothed with greyish-ochreous scale-like hairs and with scattered smooth bare granular elevations; scu-
tellum rounded; elytra long, convex, the width of the prothorax at the base, parallel for two thirds of
their length, with three more or less interrupted tubercular ridges (the first distant from the suture and
more strongly raised towards the base), numerous rows of impressions (coarse outwardly, finer and shallower
within the first ridge), and some scattered granular elevations along the suture and towards the sides,
the surface with scattered patches of greyish-ochreous scales; tarsi long.

Length 10-113 millim.

Hab. Nicaraeva, Chontales (Belt, coll. F. Bates).

Four examples. This species is nearly allied to two undescribed South-American
forms, which, to prevent future confusion, are perhaps best noticed here *.

* Calymmus scabriculus, sp. n.
Form of C. variegatus ; the prothorax less coarsely and more regularly crenulate at the sides, slightly narrowing
anteriorly, the tubercular elevations on the disc smaller, the horn only slightly widening at the apex, the
small granular elevations much more numerous, the surface less densely clothed with scales ; the elytra
with the ridges not so well defined, much more interrupted, and formed of coarser tubercles, a row of
rather coarse tubercles along the suture (feebly represented in C. variegatus), the scattered granular

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1886. 2GG

226 HETEROMERA.

OZOLAIS.
Ozolais, Pascoe, Journ. Ent. ii. p. 457 (1866) ; Ann. & Mag. Nat. Hist. 4th ser. viii. p. 851 (1871).

A single species only, O. scruposa, Pascoe, from the Amazons, was originally placed in
this genus by the describer, the same author subsequently (Ann. & Mag. Nat. Hist.
5th ser. xi. p. 437) adding two others, 0. divisa and O. gibbera, from the same locality ;
we have now to add four more from Central America. In one of these, O. elongata,
the antenne are 11-jointed, or rather the last two joints, which are more or less connate
in the other species, exhibit a distinct dividing suture (though closely articulated
and formed much as in Calymmus); in O. lutosa the suture is indicated, and in
O. nodosa also, but very indistinctly ; in O. verrucosa there is no visible suture. This
character alone, judging from the material before me, unless supported by other
characters, can scarcely be considered of generic value. In the male of some
species, O. elongata, O. nodosa, &c., the head is armed with a conical tubercle
in the middle of the epistoma in front and a transverse elevation (prolonged
into a horizontal flattened plate, the apex of which is widened on each side, in
O. elongata) on the vertex. Ozolais is nearest allied to the North-American genus
Bolitotherus, Cand. (= Phellidius, Lec.), from which it will be readily known by the
clavate antenne; the entire upper surface, as in Bolitotherus, is coarsely and irregularly
tuberculate and densely clothed with greyish-brown scale-like hairs; the elytra in
some species, O. verrucosa and QO. divisa, exhibiting rows of impressions which are —
plainly visible between the elevations.

1. Ozolais verrucosa. (Tab. X. fig. 9.)
Broad, subparallel, brownish-black, the upper surface coarsely tuberculate and clothed with scale-like hairs.
Head with several small scattered conical tubercles between the eyes, the antennary orbits swollen and
rounded ; antenne 10-jointed, ferruginous, the first joint long and stout, the second small and short ovate,

elevations coarser and more numerous, the rows of punctures more irregular and more shallowly
impressed ; tarsi long.
Length 94-11} millim.
Hab, Ecvanvor (Buckley).

Two examples in Mr. F. Bates’s collection.

Calymmus vestitus, sp. n.

Closely allied to C. variegatus; the prothorax formed almost as in that species, the posterior angles subrect-
angular, the horn wider at the apex (the apex concave within); the elytra with the ridges as in
C. scabriculus (but formed of more rounded and more distantly placed elevations), the rows of punctures
very coarsely impressed outwardly, shallower towards the suture; tarsi shorter and stouter than in
C. variegatus and C. scabriculus,

Length 103-11 millim.

Hab, Perv, Chanchamayo; Brazit (coll. F. Bates).
Two examples.

OZOLAIS. 227

the third joint about half as long again as the second, joints 4-8 short, the eighth a little wider than the
seventh, the ninth joint about twice the length and width of the eighth, the tenth broader and much
longer than the ninth, rounded at the apex and without visible suture; prothorax broader than long, the
sides slightly rounded, coarsely crenulate (about nine crenatures on each side), converging gradually from
the base, and with a very abrupt deep notch on each side (into which the subacute humeri partially enter)
just behind the very prominent posterior angles, the anterior angles broad and extending forwards, the
surface (like the head) densely clothed with light greyish-brown scale-like hairs, the dise strongly gibbous,
irregularly tuberculate, with a deep central groove and numerous conical smaller tubercles; elytra sub-
parallel to beyond the middle, slightly narrowed at the extreme base, scarcely narrower than the widest
part of the prothorax, each with about four or five rows of scattered coarse rounded tubercles, between
which are other smaller conical elevations (which towards the sides become much more numerous and
sharper, the lateral margins appearing coarsely denticulate) and numerous rows of coarse longitudinal
impressions, the entire surface sparingly clothed with reddish-brown scale-like hairs; tarsi rather short,
the last joint only slightly widening outwardly, more or less red.
Length 5} millim.

Hab. Panama, Bugaba (Champion).

One example. This species is closely allied to O. scruposa, Pasc.* (a typical example
of which has been lent me by the describer), but comparatively broader, the notch
on each side of the thorax deeper and more abrupt, the tubercles on the disc more
numerous, finer, and more conical in shape, the rows of punctures on the elytra much
more distinctly impressed and continued to the suture.

2. Ozolais lutosa. (Tab. X. fig. 10.)

Broad ovate, subparallel, brownish-black, the upper surface very coarsely tuberculate and clothed with brown scale-
like hairs. Head reddish-brown, the antennary orbits strongly swollen and subangularly extended ; antennze
ferruginous, the eight basal joints infuscate in the middle, the first joint long and stout, joints 2-8 ovate,
the third joint half as long again as the second, the fourth the length of but a little wider than the second,
joints 5-7 equal, the eighth subtriangular and a little broader than the seventh, the ninth very much
wider and longer than the eighth and also subtriangular, the tenth wider and much longer than the ninth,
rounded at the apex, and with a faint indication of a dividing suture; prothorax wider than long, the sides
irregular, slightly rounded, converging gradually from the base, coarsely crenulate and with about two
deeper excisions, the anterior angles broad, very prominent, and directed forwards, the disc very strongly
gibbous and with two large tuberculiform elevations (upon which are other smaller tubercles), the

. elevations divided by a deep central groove, the rest of the surface irregular and with small scattered
granular tubercles ; elytra rather short, a little narrower than the prothorax at the base, widest behind
the middle, transversely gibbous, with irregular rows of coarse scattered rounded tubercles (on the top of
each of which is a small bare rounded granular prominence), between which are other smaller conical
elevations and towards the sides numerous coarser angular elevations; beneath slightly shining, irregu-
larly punctured; prosternum slightly produced.

Length 7 millim.

Hab. Costa Rica, Cache (Rogers).

One example.

* The figure of this insect (cf. Journ. Ent. ii. t. 18. f. 1) is very badly drawn, the deep notch on each side
of the thorax and the larger tubercles on the thorax and elytra not being indicated.
2GG 2

228 HETEROMERA.

3. Ozolais nodosa.

Broad ovate, subparallel, brownish-black, the upper surface coarsely tuberculate and clothed with greyish-brown
scale-like hairs. Head with the antennary orbits swollen and extended laterally ; a small longitudinal eleva-
tion in the centre of the epistoma in front and a stronger transverse one on the vertex in the male ; antenns
much as in O. lutosa, the tenth joint exhibiting a dividing suture (the apical portion narrowed) ; prothorax
rather broader than long, the sides obliquely converging from the base, irregularly crenulate, and with a
broader irregular prominence on each side about the middle, the anterior angles broad and directed

* forwards, the hind angles broad and directed outwards, disc strongly gibbous (as in O. lutosa), the surface
(the discal elevations especially) with numerous scattered small bare granular tubercles ; elytra rather
short, distinctly narrower than the prothorax at the base, subparallel to beyond the middle, with irregular
rows of coarse tubercles, upon each of which is a small bare granular elevation (the tubercles smaller,
more conical, and more numerous at the sides); beneath slightly shining, irregularly punctured ; pro-
sternum distinctly produced ; legs, antennsz, and oral organs more or less ferruginous.

Length 6} millim. (¢.)

Hab. Nicaragua, Chontales (Belt).

One male example. Shorter than 0. elongata, the sides of the thorax more oblique,
the club of the antenne differently formed, &c.

4. Ozolais elongata. (Tab. X. figg.11,¢; 11a, antenna; 114, side view of
the head.)

Elongate, subparallel, black, the upper surface coarsely tuberculate and densely clothed with greyish-brown
scale-like hairs. Head with the antennary orbits swollen, raised, and extended laterally; a stout
conical tubercle in the centre of the epistoma in front and a broad horizontal plate (widened out on
each side at the apex) on the vertex in the male, a transverse elevation (upon which are two smooth
granular prominences) on the vertex in the female; antenne 11-jointed, the first joint very stout
and long, the second joint short and subglobose, the third ovate and about twice the length of the
second, the fourth much shorter than the third, joints 5-7 slightly shorter than the fourth and
about equal, the eighth joint the length of the seventh but a little wider at the apex and subtrian-
gular, the ninth joint about twice the length and breadth of the eighth, widening a little outwardly, sub-
quadrate, and rather widely separated from the tenth, the tenth joint the width of the apex of the ninth,
distinctly divided in the middle (the subconnate eleventh joint clearly visible) into a broad transverse
piece and a narrower portion rounded at the apex, ferruginous, the intermediate joints more or less
infuscate ; prothorax not much broader than long, the sides narrowing from the base, coarsely and irregu-
larly crenulate, and slightly constricted before and strongly so behind the middle, the anterior angles
broad and projecting forwards, the posterior angles broad and directed outwards, the disc strongly gibbous
(as in O. lutosa), the entire surface with scattered small bare granular tubercles (which are much more
crowded and numerous on the discal elevations); elytra long, about the width of the prothorax at the
base, subparallel to beyond the middle, with irregular rows of large and small rounded tubercles (the
larger elevations more widely separated and placed principally on the disc) upon each of which is a small
bare granular prominence; beneath slightly shining, longitudinally wrinkled; prosternum slightly
produced.

Length 8-9 millim. (¢ 9.)

Hab. Nicaracua, Chontales (coll. F. Bates, Belt).

Three examples. This species will be identified by the structure of the antenne, and
by the cephalic armature of the male.

GONIADERA. 229

Group GONIADERIDES.

This group is represented in Central America by two genera only; the South-
American Phymatestes (Phymatodes, Blanch.), Gamazxus, and Amymone contain as
yet no representative in our country. Xanthicles is noteworthy on account of the
completely divided eyes and Caraboid facies. The “Goniaderides” are connected
with the ‘ Heterotarsides ” by several more or less intermediate forms. The group is
almost confined to the tropical regions of the New World, though one genus, Mdia-
torix, has been described from Java.

GONIADERA.

Goniadera, Perty, Del. anim. art. Brasil. p. 62 (1830); Blanchard, Hist. Nat. Ins. 11. p. 35 (1845) ;
Lacordaire, Gen. Col. v. p. 391; F. Bates, Trans. Ent. Soc. London, 1868, p. 315, nota.
Goniodera, Castelnau, Hist. Nat. Ins. Col. ii. p. 238 (1850) ; Gemm. & Har. Cat. vii. p. 1988.

This genus contains numerous Tropical-American species, fully half of which are
undescribed as yet; six species inhabit Central America. The nondescript species from
Java mentioned by Lacordaire (op. cit. p. 392, nota) is probably an Adiatoriz. Most
of the Goniadere captured by myself were found by beating the withered still-attached
leaves of fallen forest-trees or beneath loose bark.

1. Goniadera repanda.
Melandrya repanda, Fabr. Syst. Eleuth. i. p. 165°.
Gonyodera repanda, Cast. Hist. Nat. Ins. Col. ii. p. 188°.
Goniadera repanda, F. Bates, Trans. Ent. Soc. Lond. 1868, t. 15. figg. 6 a—c.

Hab. Mexico, Tepanistlahuaca (Sallé), Playa Vicente (Hoge); British Honpuras,
Belize (Blancaneaux); Guaremata, Panzos (Champion); Nicaragua, Chontales (Belt,
Janson) ; Panama (coll. F. Bates), Volcan de Chiriqui, Tolé (Champion).—CoLoMBIA,
Bogota ; Gurana, Cayenne? ; Braziu?; Soura America }.

A wide-ranging species. The large number of specimens before me vary considerably
in the shape and sculpture of the thorax, and also in the sculpture of the elytra, but I
think they can only be regarded as representing one variable species. G. impressa,
Er., from Peru, would appear to be closely allied to G. repanda, but has the thorax
more acutely angled at the sides before the middle, and with three impressions before

the base, the elytra costate, &c.

9. Goniadera dissipata.
Goniadera dissipata, Kirsch, Berl. ent. Zeit. 1866, p. 197 am

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).—Cotoms1a, Bogota * (coll. F.
Bates); AMAZONS.

230 HETEROMERA.

8. Goniadera oculata. (Tab. X. fig. 12.)

Reddish-brown, shining, clothed with widely scattered erect hairs. Head broadly and transversely excavate
in front, very irregularly punctured (the concave portion closely and more finely, the rest very sparingly),
the intraocular space with four or five impressions only in the middle, the eyes comparatively very
large and coarsely faceted; antenna, the two basal joints excepted, closely punctured and dull;
prothorax about as long as broad, rather flat, the sides expanded and broadly and subangularly
extended before the middle, thence narrowing and sinuous to the base, the anterior angles very broad.
and rounded and extending forwards, the hind angles distinct and obliquely truncate, the surface
very sparingly and irregularly punctured, the punctures not very coarse and more numerous towards
the base ; elytra broad, rather depressed on the disc, narrowly and regularly costate from the base to the
apex, the sixth interstice well defined outwardly by a sharp ridge extending from the shoulder almost to
the apex, the interstices each with two rows of moderately coarse impressions ; beneath shining, sparingly
and finely punctured along the sides and anterior margins of the ventral segments.

Length 18 millim.

Hab. Nicaragua, Chontales (Belt).

One example. The comparatively very large eyes, the closely punctured antenne, the
short transverse excavation on the head, the dilated lateral margins of the thorax, and
the regularly and narrowly costate elytra are characteristic of this insect.

4. Goniadera nicaraguensis. (Tab. X. fig. 13.)

Black, shining, clothed with widely scattered erect hairs. Head with numerous coarse scattered punctures,
transversely excavate in front ; prothorax rather broader than long, comparatively narrow, the sides angu-
larly extended before the middle, thence narrowing slightly to the base, the anterior angles very prominent
and rather broadly extending forwards, the hind angles obtuse and obliquely truncate, the surface with
scattered very coarse irregular punctures which are coarser than those upon the head; scutellum almost
smooth ; elytra with numerous interrupted rows of short longitudinal smooth elevations (the elevations
not clearly defined towards the suture, except posteriorly, and shorter, more numerous, and more conical in
form outwardly); beneath shining, the metasternum and ventral surface with fine widely scattered shallow

punctures, the ventral segments at the sides with scattered coarse shallow impressions.
Length 134 millim.

Hab. Nicaragua, Chontales (Janson).

One example. This species will be identified by the very coarsely sculptured upper
surface, the numerous interrupted rows of short longitudinal elevations on the elytra,
and the comparatively narrow thorax.

5. Goniadera pilosa. (Tab. X. fig. 14.)
Goniadera pilosa, F, Bates in litt.

Black, shining, the upper surface thickly, the under surface sparingly, clothed with long erect dark greyish-
brown hairs. Head coarsely, irregularly, and somewhat closely punctured, transversely excavate in front;
prothorax rather broader than long, the sides angularly extended before the middle, thence obliquely nar-
rowing and sinuous to the base, the anterior angles broadly extending forwards and very prominent, the
posterior angles very obtuse and obliquely truncate, the surface coarsely, irregularly and rather closely
punctured ; elytra with traces of shallow longitudinal grooves, the surface irregularly, moderately coarsely,
and not very closely punctured; beneath smoother and more shining, the metasternum and ventral surface
with fine widely scattered punctures, the sides and anterior margins of the ventral segments with numerous

coarse impressions ; legs and the basal half of the antenne also clothed with long erect hairs,
Length 16-173 millim.

GONIADERA.—XANTHICLES, 231

Hab. Nicaracva, Chontales (Belt, Janson, coll. F. Bates); Panama, Volcan de
Chiriqui (Champion).

Six examples. The two individuals from the State of Panama have the upper surface
more sparingly and more coarsely punctured, the shallow elytral grooves more distinctly
impressed, and the thorax less angularly extended at the sides; they cannot, however,

be regarded as representing more than a variety of the Nicaraguan insect. G pilosa
will be known from its allies by its very hairy upper surface.

6. Goniadera alternata. (Tab. X. fig. 15, 3.)

Goniadera alternata, F. Bates in litt.

Black, shining, clothed with short scattered hairs, the inequalities of the rough upper surface (of the head and
thorax especially) often more or less filled with earthy-looking scales. Head short, coarsely and rugu-
losely punctate (the punctures more or less confluent), shallowly impressed transversely in front ; antenns
short, slightly passing the base of the prothorax, the second joint strongly transverse; prothorax trans-
verse, the sides broadly extended just before the middle, thence narrowing and sinuous to the base, the
anterior angles broad and produced in front, the hind angles rather sharp and prominent and directed out-
wards, the lateral margins slightly expanded and crenulate, the base broadly truncate in the middle and
emarginate on each side just within the angles, the surface rough and covered with irregular, more or less
granular tubercles ; elytra comparatively short, broad, depressed on the disc, with narrow, more or less
interrupted, longitudinal ridges alternating with rows of short longitudinal elevations, the interstices
coarsely, irregularly, and rather closely punctured; beneath shining, sparingly and finely punctured ;
legs short, the anterior tibiw in the male with a broad tooth on the inner side before the apex.

Length 11-13 millim. (¢ 2.)

Hab. Mexico (Sallé); British Honpuras, Belize, R. Sarstoon (Llancaneaux) ; GuatE-

maza (coll. F. Bates), Senahu, San Juan in Vera Paz, Las Mercedes (Champion); Panama,
Volcan de Chiriqui (Champion).

A widely distributed though apparently rare species. (G. alternata agrees perfectly
in general structure with G. interrupta, from Pebas, Peru, described at great length by
Mr. F. Bates (cf. Trans. Ent. Soc. Lond. 1868, pp. 312 & 313, t. 10. f. 3), and some
undescribed South-American species; it will be known at once from G. interrupta
by the different sculpture of the elytra, ¢. 9. longitudinal slightly interrupted ridges
alternating with rows of short longitudinal elevations, the interspaces much more evi-
dently punctured. An example from Senahu is figured.

XANTHICLES.

Mentum much as in Goniadera, longer than broad, widening from the base, but little rounded at the sides, the
anterior angles prominent, longitudinally carinate in the middle ; last joint of the maxillary palpi broadly
securiform (as in Goniadera), that of the labial palpi short and broad ovate ; mandibles cleft at the apex;
antennee very stout, joint 2 very short and strongly transverse, 3 short, about as broad as long, and twice
as long as 2, joints 4-6 distinctly wider, subequal, and each nearly twice as long as 3, 7-10 widening a
little outwardly, 11 longer than 10, abruptly and obliquely truncate at the apex, the outer apical angle
slightly produced ; head much as in Goniadera, but not swollen on each side behind the eyes, and longer ;
eyes completely divided at the side, the upper portion much smaller than the lower and oblique ; prothorax,
scutellum, elytra, and legs as in Goniadera, the elytra punctate-striate ; epipleuree broad to the third

232 HETEROMERA.

ventral suture, thence to the apex narrow; metasternum deeply impressed in the middle behind ; surface
shining, more or less pilose.

This genus will be at once known from Goniadera by the completely divided eyes and
the very differently formed antenne. Xanthicles includes two allied species, both of
comparatively small size, from Costa Rica; these insects bear a strong superficial resem-
blance to certain Carabide, e. g. Patrobus.

1. Xanthicles caraboides. (Tab. X. fige. 16 ; 16 a, labium; 16 0, maxilla and
maxillary palpus.)

Piceous, clothed with scattered erect hairs. Head very coarsely, sparingly, and irregularly punctured, broadly
and subtriangularly excavate anteriorly, clothed with numerous erect hairs; prothorax as long as broad,
widest anteriorly, the sides strongly constricted behind the middle, thence widening a little to the base,
the anterior angles broadly rounded and not produced, the hind angles prominent but obtuse, the extended
lateral margins very prominent, the apex broadly and shallowly emarginate in the middle, the base straight,
the surface very finely and closely punctured, with numerous widely scattered coarse shallow impressions
and a few erect hairs; elytra regularly crenate-striate, the interstices rather broad, smooth, and feebly
convex, the humeri with two or three erect hairs; antenne and legs light reddish-ferruginous ; beneath
shining, light reddish-brown, very sparingly and shallowly, the epipleure very coarsely and irregularly,
punctured.

Length 83 millim.

Hab. Costa Rica, Irazu 6000 to 7000 feet (Rogers).

One example.

2. Xanthicles hirsutus.

Piceous, somewhat densely clothed with erect testaceous hairs. Head coarsely and subconfluently punctured,
deeply impressed transversely in front; prothorax as long as broad, widest anteriorly, the sides strongly
margined, narrowing to the base, and feebly sinuate behind, the apex feebly emarginate in the middle, the
anterior angles broadly and obliquely truncated and not produced, the hind angles rectangular, the base
straight, the surface exceedingly finely and closely punctured and with numerous rather closely placed
coarse shallow impressions ; elytra closely punctate-striate (the punctures transverse, closely and rather
irregularly placed), the interstices narrow and uneven, very feebly convex, and irregularly but distinctly
punctured; beneath light reddish-brown, sparingly and shallowly, the epipleure very coarsely and sub-
confluently, punctured ; legs and antenne light reddish-ferruginous.

Length 7 millim. (<¢.)

Hab. Costa Rica, Cache (Logers).

The more pubescent and differently sculptured upper surface will readily distin-
guish this species from X. caraboides.

Group HETEROTARSIDES,

This group, like the preceding, is only represented in Central America by two genera,
Anedus and Paratenetus. The typical Old-World genus Heterotarsus is remarkable on
account of having one joint less in each of the tarsi—4, 4, 3; in our genera, however,
the tarsi are formed as usual. Anedus appears to be represented in the Old World
by Lyprops, a genus also numerous in species. The North-American genus Pratwus

ANZDUS. 233

and the Tropical South-American Phobelius and Tithassa have not yet been received
from our country.

ANADUS.

Anedus, Blanchard, Hist. Nat. Ins. ii. p. 35 (1845).

Anedus, Lacordaire, Gen. Col. v. p. 896; F. Bates, Trans. Ent. Soc. Lond. 1868, p. 318, note ;
Horn, Rev. Ten. of Am. north of Mexico, p. 373.

Aspisoma, Dej. Cat. 3rd edit. p. 228.

This is a genus numerous in species in Tropical America, and extending northwards
to the Middle United States. By far the majority of the species in collections are
undescribed as yet. A. orientalis, Motsch., from Mongolia (described from a specimen
without antennz), is, as its author suggests, probably referable to another genus, Nine
species inhabit our country ; all but one of these appear to be undescribed. The different
species vary considerably in the structure of the antenne; in some the third joint is
scarcely longer than the second ; in several species these organs are longer in the male
than in the female. In one, A. brevicollis, the tibie are curved and slightly swollen,
and the anterior pair armed with a short tooth in the male; in our other species the
tibiae are more or less slender, and similar in both sexes. In A. brevicollis and
A. setulosus the penultimate joint of the tarsi is more distinctly widened than in the
other species recorded here. Certain, mostly South-American, forms have the elytra
more or less maculated. These insects are found by beating herbage and also on the
ground beneath fallen timber or stones. The following table will assist in the deter-
mination of the Central-American species :—

Form oblong or elongate ovate, the upper surface more or less depressed.
Tibiee slender, unarmed in the male.
Antennee with the third joint long, at least more than twice as long as
the second . . 2 ee ee tee ee ew wee) punctatissimus,
similis, mexicanus, maculatus.
Antennz with the third joint short, as long as or not much longer than
the second . . . 2 ee ee ee ee ee ee bongicornis,
marginatus, apicicornis.
Tibi slightly curved and swollen, the anterior pair especially, and armed
with a small triangular tooth in the male . . . . .. . . . « 6revicollis.
Form elliptic, convex ©.) 6 ee ee tt setulosus.

1. Anedus punctatissimus.
Anedus punctatissimus, Blanch., in D’Orbigny’s Voyage, vi. pt. 2, p. 198, and Atlas, Ins. t. 14.
£.10'*; Lacord. Gen. Col. v. p. 397, note’ ; Dej. Cat. 3rd edit. p. 227°.

Hab. Muxico, Presidio, Ventanas (Forrer), Oaxaca (coll. F. Bates), Orizaba, Cordova,

* This figure is very incorrect, as noted by Lacordaire.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1886. 29HH

234 HETEROMERA.

Puebla (Sallé), Jalapa (Hoge); Guatumana, San Joaquin, San Gerénimo, Capetillo,
Aceytuno, Cerro Zunil (Champion); Nicaracua, Managua (Sallé), Chontales (Belt,
Janson); Costa Rica (Van Patten); Panama (coll. F. Bates), Volcan de Chiriqui,
Bugaba (Champion).—CotomBiA ; Boutvia!?; Braziu 2°.

A common species throughout our region. The series of about seventy specimens before
me vary considerably in size and in the intensity of the elytral punctuation; in very
many examples the elytra are closely and equally punctured throughout, in others more
shallowly and sparingly towards the apex; the elytra also vary in Jength, in most of the
specimens from Orizaba (as in the one from Panama) they are comparatively short, in
those from San Joaquin comparatively long: a short series from San Gerénimo are con-
siderably smaller in size ; two from Cerro Zunil are very large, equalling the largest of
the South-American specimens in Mr. F. Bates’s collection ; our examples vary in size
from 63-11 millimetres. These different varieties are connected by numerous interme-
diate forms; they cannot, in my opinion, be satisfactorily separated. The antenne are
rather stouter in some examples; the tibie slender and unarmed in both sexes. I met
with this insect pretty commonly in various localities, from the sea-level to an elevation
of 5000 feet; it is found chiefly in wooded districts.

2. Anzdus similis.

Rather broader than A. punctatissimus ; the prothorax more constricted behind, very much more coarsely and
sparingly punctured, the base distinctly impressed on each side just within the rather more acute hind
angles ; the elytra still more coarsely punctured.

Length 83-10 millim. (¢ 9.)

Hab. Mexico, Orizaba (Hége); Guatemata, San Geronimo (Champion); Nicaragua,
Chontales (Janson).

Six examples, differing as above. In one of these the thorax is marked with red at
the sides, and the elytra have an ill-defined patch of red on each side behind the middle ;
as in A. punctatissimus, the punctuation of the elytra varies, and is coarser and closer in
some examples. The antenne are rather longer and more slender in the male than in
the female. An allied form is found at Ega.

8. Anedus mexicanus. (Tab. X. fig. 17.)

‘Oblong ovate, rather short, brownish-piceous, shining, sparingly clothed with rather long suberect hair. Head
rather coarsely but not very closely punctured, transversely impressed in front ; eyes large; antenne
comparatively rather short, moderately stout, ferruginous, joint 2 very short and transverse, not half the
length of 3, joints 3 and 4 subequal, joints 5-10 slightly widening outwardly and equal in length, joint 11
longer than 10 and narrowed at the apex; prothorax transverse, the sides rounded anteriorly, abruptly
narrowed and sinuate behind, the anterior angles broadly rounded, the lateral margins extended and pro-
minent, the base obliquely impressed on each side just within the produced and very acute hind angles,
the surface sparingly, regularly, and coarsely punctured; scutellum with a few scattered fine punctures ;

ANADUS. 235

elytra rather short, shallowly, coarsely, and somewhat closely punctured; legs rather stout, fer-
ruginous.
Length 54-52 millim.

Hab. Mexico, Cordova (Sailé).

Two examples. This species is allied to and of the size of the North-American
A. brunneus, Zieg., but with the thorax differently formed—e. g. the lateral margins more
expanded, the sides more rounded, the hind angles much more acute, the base distinctly
impressed on each side, and the disc much more sparingly punctured; the third joint
of the antenne very much longer, the legs longer, &c. A. rotundicollis, Lec.,
from the desert of the Gila River of Arizona, is probably also another ally of
A. mexicanus.

4, Anedus maculatus.

Oblong ovate, brownish-piceous, slightly shining, the upper surface clothed with short decumbent hairs. Head
broadly and transversely impressed in front, coarsely and closely punctured on the vertex, the intraocular
space with a few scattered coarse impressions, the epistoma more finely punctured; antenns compara-
tively short, not very stout, joint 2 short, about half the length of 3, joint 4 the length of but rather wider
than 8, joints 4-10 slightly widening outwardly and almost equal in length, joint 11 longer and rather
wider than 10, obliquely and bluntly rounded at the apex, ferruginous, the middle joints darker ; prothorax
strongly transverse, the sides obliquely and sinuously narrowed before and behind the middle, rather more
narrowed posteriorly, the lateral margins narrow and not extended, the anterior angles obtuse, the hind
angles acute and outwardly directed, the surface very coarsely and closely punctured ; scutellum smooth ;
elytra rather short, coarsely and closely punctured (not quite so closely as the prothorax), the punctures
here and there transversely confluent, piceous, the shoulders broadly, a transverse band (not reaching
the suture) on each side beyond the middle, and a patch on each side (not reaching the suture) just before
the apex, obscure reddish-testaceous ; legs and oral organs reddish-testaceous.

Length 34 millim.
Hab. Panama, David in Chiriqui (Champion).

One example. This little species is allied to A. apicicornis, but with totally different
antenne, differently formed thorax, the elytra comparatively shorter and maculated.

5. Anedus longicornis.

Elongate ovate, reddish-brown or piceous, shining, sparingly clothed with long erect hair. Head very coarsely,
irregularly, and subconfluently punctured, transversely impressed in front; antenne rather stout, long, in
the male reaching to the middle of the elytra, in the female shorter, ferruginous, joint 2 small and strongly
transverse, joint 3 short, not twice as long as 2, and about as broad as long, joint 4 more than twice as
long as 3 in the female, three times as long in the male, joints 5-10 about equal in length in the female,
in the male gradually lengthening outwardly, joint 11 longer than 10, still longer in the male, obliquely
subtruncate at the apex ; prothorax strongly transverse, the sides rounded anteriorly, abruptly narrowed
and sinuate behind, the lateral margins extended and prominent, the anterior angles broadly rounded, the
hind angles subrectangular and rather acute, the surface very coarsely, irregularly, and not very closely
punctured ; scutellum smooth; elytra rather long, coarsely, confusedly, and rather closely punctured, and
with a regular row of closely placed punctures along the suture, the shoulders, and the sides less distinctly

paler; legs slender, light ferruginous. (¢ 9.)
Length 5-64 millim. ;
Hab. Mexico, Capulalpam, Guanajuato (Sad/é) ; GUATEMALA, near the city (Champion)

2 HH 2

236 HETEROMERA.

Eight examples. In the male of this species the antenne are distinctly longer, and
the apical joint more elongate, than in the female; the tibis are slender and unarmed
in the male, and similar in both sexes.

6. Anedus marginatus. (Tab. X. fig. 18.)

Elongate ovate, brownish-piceous, shining, clothed with a few widely scattered erect hairs. Head with a few
scattered coarse impressions, transversely impressed in front; antennee very long, stout, ferruginous,
joint 2 very short and strongly transverse, joint 3 short, longer than 2, and rather broader than long,
joint 4 more than twice as long as 3, joints 4-10 long and very slightly lengthening outwardly, joint 11
much longer than 10, slightly widening outwardly, and with the apex obliquely subtruncate; prothorax
strongly transverse, the sides subangularly extended about the middle, thence rapidly and obliquely
narrowing and sinuous to the base, rounded and scarcely narrowing anteriorly, the lateral margins slightly
extended and prominent, the anterior angles broadly rounded, the posterior angles distinct but not acute,
the surface very irregularly, coarsely, and rather distantly punctured ; scutellum smooth; elytra rather
long, strongly margined, coarsely and closely punctate-striate, the interstices smooth and feebly convex,
piceous, the sides and base broadly and indefinably sordid testaceous, the shoulders still paler; legs long
and slender, testaceous. .

Length 4 millim. (¢.)

Hab. Panama, David in Chiriqui (Champion).

One example. This small species will be known amongst its allies by its long legs
and antenne, anteriorly widened thorax, and seriate-punctate elytra, the margins of
the latter sordid testaceous. Of the Central-American species it is nearest allied to
A. longicornis.

7. Anedus apicicornis. (Tab. X. fig. 19.)

Oblong ovate, brownish-piceous, slightly shining, the upper surface rather thickly clothed with long, suberect
hair. Head coarsely and subconfluently punctured, broadly and transversely impressed in front, the
anterior part red; antenne long, stout, thickly clothed with short hair, joints 2 and 3 very short, strongly
transverse, subequal, and together not nearly equalling the fourth joint in length, joint 4 more than three
times as long as 3, joints 4-10 very slightly widening outwardly and almost equal in length, jomt 11
longer than 10 and bluntly rounded at the apex, the three basal joints and the apical one red, the rest
piceous ; prothorax strongly transverse, the sides strongly and obliquely narrowing before and behind the
middle, rather more narrowed posteriorly, and constricted just before the base, the lateral margins slightly
extended and prominent, the apex broadly but not deeply arcuate emarginate, the hind angles narrow and
acute, the surface very coarsely and closely punctured ; scutellum coarsely punctured; elytra rather long,
coarsely and closely punctured (not quite so closely or coarsely as the prothorax), the punctures here and
there transversely confluent and submuricate, the sides and base (the shoulders more prominently) inde-
finably reddish, the disc piceous; legs and oral organs reddish-testaceous.

Length 33 millim.

Hab. Panama, David in Chiriqui (Champion).

One example. <A very distinct little species.

8. Anedus brevicollis. (Tab. X. fig. 20, 3.)

Oblong ovate, broad, brownish-piceous, shining, clothed with a few scattered suberect hairs. Head exceedingly
coarsely, irregularly, and distantly punctured, transversely impressed in front, the anterior half red;
antennee stout, comparatively short, joint 2 very short and transverse, joint 3 rather more than twice as
long as 2, joint 4 slightly longer than 3, joint 5 shorter than 4, joints 5-10 widening outwardly and equal

ANEDUS. 237

in length, joint 11 longer than 10, widening outwardly and abruptly truncate at the apex, very closely
punctured, black, the three basal joints partly red and smoother; prothorax very strongly transverse,
about twice as broad as long, the sides rounded anteriorly, moderately narrowed and sinuate behind, the
lateral margins broadly extended and impressed within, the anterior angles broadly rounded, the base
broadly and shallowly impressed just within the rectangular hind angles, the disc with a shallow central
groove (perhaps accidental), the surface exceedingly coarsely and irregularly and not very closely punc-
tured, the space between the punctures finely wrinkled in places, the disc piceous, the sides broadly and
indefinably red ; scutellum smooth ; elytra broad, subparallel, widest behind the middle, broadly rounded
at the apex, the entire surface coarsely, confusedly, and rather closely punctured (much more finely than
the prothorax), reddish-castaneous ; legs rather short and stout; penultimate joint of the tarsi broadly
widened ; tibiz in the male slightly curved and swollen, the anterior pair more strongly and very
distinctly widened from a little beyond the middle to the apex and with a small triangular tooth on
the inner side before the middle, the posterior pair finely serrate within.
Length 7 millim. (¢.)

Hab. Guatemata, Cubilguitz (Champion).

One example. This species will be readily known by the structure of the tibize and
the castaneous elytra.

9. Anzedus setulosus. (Tab. X. fig. 21.)

Elliptic, convex, dark reddish-brown or piceous, shining, somewhat thickly clothed with long decumbent hairs
and scattered erect longer hairs. Head very coarsely, irregularly, and rather distantly punctured, trans-
versely impressed in front; eyes large, coarsely faceted; antenne stout, comparatively short, thickly
clothed with hairs, joint 2 small, joint 3 about twice as long as 2, joint 4 longer and rather stouter than
3, joints 4-10 equal in length and slightly widening outwardly, joint 11 longer than 10, ovate, bluntly
rounded at the apex, closely punctured, black, the three basal joints smoother and red; prothorax strongly
transverse, about twice as broad as long, rounded at the sides, narrowed and sinuous behind the middle,

, the lateral margins extended, the anterior angles broadly rounded, the base bisinuate and shallowly
impressed on each side just within the acute hind angles, the surface exceedingly coarsely, irregularly,
and not very closely punctured, an ill-defined smooth longitudinal space on the disc; scutellum smooth ;
elytra comparatively very convex, rounded at the sides, widest a little before the middle, thence narrowing
to the apex, coarsely, closely, and irregularly punctured, the punctures more or less muricate and towards
the sides confluent, the interspaces outwardly and at the apex irregularly wrinkled, and here and there
raised and subtuberculate ; legs rather short and stout, similar in both sexes, ferruginous, more or less
stained with piceous, the penultimate joint of the tarsi broadly widened.

Length 6-7 millim. (¢ @.)

Hab. Panama, Bugaba, David (Champion).—CotomBia, Bogota? (coll. F. Bates).

Var. The elytra towards the sides and apex with numerous small, smooth, scattered, longitudinal, subconical
elevations.

Hab. Nicaragua, Chontales (elt).

Numerous examples of the type, three of the variety. A hairy, convex species, of
elliptical form, with comparatively short and stout legs and antenne. The specimens
from Nicaragua, differing as above described, probably represent a local variety of the
same species. A. setwlosus cannot be compared with any other species of the genus
described here. An allied form is found in Brazil, specimens of which in Mr. F. Bates’s
collection are labelled with the manuscript name Aspisoma fuscicorne. This species
is an Aspisoma, according to Lacordaire’s definition (Gen. Col. v. p. 397), a genus

238 HETEROMERA.

not considered by that author, nor by the present writer, to be distinct from Anedus.
A typical example from David is figured.

PARATENETUS.

Paratenetus, Spinola, Essai monogr. sur les Clérites, ii. p. 116 (1844); Motschoulsky, Bull. de
Moscou, xli. pt. 2, p. 192; Horn, Rev. Ten. of America north of Mexico, p. 373.

This New-World genus was included by Spinola in the Cleride, and placed near
Corynetes. Subsequent writers (Erichson, Motschoulsky, Leconte, and Horn) have placed
it in the Tenebrionide, in the group “ Heterotarsides” ; it is not noticed by Lacordaire.
Two species only were known to Spinola; Motschoulsky (Joc. cit.) in a synoptical table
has given brief characters for a number of additional species from North and South
America, some of which probably will never be identified, and one has been described
by Leconte from the Northern United States and Canada. The males* of all the
species known to me have the anterior tibie armed with a sharp tooth in the middle
beneath (scarcely visible from above) and often the intermediate and posterior tibie
more or less denticulate or toothed within; in P. villosus there is also a strong blunt
tooth at the extreme base of the anterior femora beneath. In two species examined
(P. villosus and P. tibialis) I find the second joint of the labial palpi to be stout and
ovate, much stouter than the apical joint ; we give a figure of the labium of P. villosus.
An allied genus, Tithassa, Pasc., is found in Brazil. Paratenetus bears a strong super-
ficial resemblance to the genus Corticaria. These insects are numerous in Central
America, whence we now record twelve species. The different species are found
upon herbage or by beating the withered still-attached leaves of fallen forest trees.

The following table will assist in the identification of the Central-American species :—

Club of the antenne exceedingly stout, still stouter in the male, black.
Species large; the elytra slightly constricted before the

apex 2... ee ee ew we ww ee we we LtbIalis.
Species small; the elytra oblong oval (form of Corticaria) . grandicornis.
Club of the antennz very stout, still stouter in the male, ferruginous . . ruficornis.

Club of the antennz moderate, similar in both sexes, piceous.
Elytra comparatively long, confusedly punctured.

Species of large size. © ©. / ee ew ee ee e Villosus.
Species smaller.
The sides of the thorax rather coarsely crenulate . . punctatus.
The sides of the thorax more finely crenulate.
Form oblong ovate . . . . . . . « « corticarioides.
Form obovate . . . . . . . . « + « obovatus.
Elytra comparatively long, the punctures arranged in irregular rows
towards the sides. . 2. 2. 2. 1. 2 1 1 © 6 © we ee s) crenulatus.

® The sexes do not appear to have been identified by previous writers; apparently the female only was
known to Spinola.

PARATENETUS. 239

Elytra shorter, subseriate-punctate . . . . . . . . + + « Obrevipennis.
Elytra irregularly tuberculate and more convex . . . . . . . ¢uberculatus.
Club of the antenne small, ferruginous; species very small in size.
Sides of the thorax coarsely denticulate . . . . . denticulatus.
Sides of the thorax armed with very short teeth, or
simply crenulated . . . . . . +s . « Gropicalis.

1. Paratenetus tibialis. (Tab. X. fig. 22, ¢.)

Rather convex, reddish-brown, rarely piceous, sparsely clothed with rather long erect hair. Head coarsely and
closely punctured, transversely impressed in front; antenne stout, rather long, with the three joints of
the club greatly widened in’ both sexes (these joints coarsely punctured), still stouter and broader in
the male, black, the basal joints often more or less reddish; prothorax broader than long, distinctly
narrowing anteriorly, widest at or a little before the base, the sides irregularly but not coarsely
erenulate, the posterior angles acute, the anterior angles not very prominent, the surface rather coarsely
punctured (not quite so closely or coarsely as the head), the disc often darker; elytra widening from the
base, widest a little beyond the middle, thence obliquely narrowing, and the apex somewhat produced,
strongly margined, a shallow depression on each side of the base just within the shoulders, the surface
rather coarsely and irregularly punctured, the punctures finer and not so closely placed on the disc,
varying in colour, unicolorous reddish-brown, or (more frequently) piceous with the sides reddish-brown ;
legs reddish-brown or piceous, rather stout; tibia (the intermediate pair especially) slightly curved and
swollen in both sexes, in the male the anterior pair armed on the lower side about the middle with a
sharp tooth, and the intermediate and posterior pairs denticulate on the inner side and with their inner
apical angles sharply produced ; beneath shining, sparingly and finely punctured.

Length 43-5} millim. (¢ 2.)

Hab. Mexico, Playa Vicente (Sallé), Jalapa (Hége); British Honpuras, Beliz

R. Hondo (Blancaneaux); GuatEMaLa, Cahabon, Chiacam, San Juan in Vera Paz,
Teleman (Champion).

Many examples. In Guatemala I only met with this species on the Atlantic slope,
in or near the Polochic valley. This distinct species will be readily known by the
very stout black antennal club, the structure of the tibie in the male, the shape of the

elytra, &c.
A male example from San Juan is figured.

2. Paratenetus grandicornis.
Paratenetus grandicornis, Motsch. Bull. de Moscou, xli. pt. 2, p. 193°.

Hab. Payama, Obispo }.

The brief characters given by Motschoulsky for this species are as follows:—
“Thorax armed laterally with very short teeth or simply crenulated; elytra oblong
oval, slightly convex, form of Corticaria; club of the antennee black and greatly dilated,
the base clear. Length ¢ lin.” This species would seem to be allied to P. tibialis,
though very much smaller and with the elytra differently shaped.

9. Paratenetus ruficornis. (Tab. X. fig. 23,2.)
Moderately convex, unicolorous reddish-brown, sparsely clothed with decumbent and also with rather long erect
hair. Head coarsely and subconfluently punctured, transversely impressed in front ; antenne stout, rather

240 HETEROMERA.

long, with the three joints of the club much widened in both sexes (these joints finely punctured and the
two lower ones transverse), still broader and stouter in the male, entirely ferruginous ; prothorax com-
paratively broad, wider than long, slightly rounded at the sides, distinctly narrowed anteriorly, the sides.
denticulate (about eight denticles on each side), the angles acute (each formed by one of the lateral
denticles), the surface coarsely and subconfluently punctured; elytra widening slightly from the base
to beyond the middle, broadly rounded at the apex, narrowly margined, the surface rather coarsely
irregularly and somewhat closely punctured, the punctures finer and not so closely placed on the disc ;
legs moderately stout, ferruginous ; anterior tibie with a small triangular tooth on the lower side a little
beyond the middle, the intermediate tibia also with a tooth on the inner side some distance beyond
the middle, and the inner apical angles of the two hinder pairs narrowly produced in the male; beneath
shining, finely and sparingly punctured.
Length 4-43 millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

Numerous specimens. PP. ruficornis will be identified by its ferruginous antenne,
stout antennal club (in the male about as stout as in the female of P. tibialis), the
coarsely denticulate sides of the thorax, &c. It is quite possible that P. Jlebast,
Spin. (Essai monogr. Clér. ii. p. 119, t. 44. fige. 6 & 66), from Colombia, is the female
of P. ruficornis, but as I cannot reconcile our insect with the figure given I prefer to
describe it. Compared with P. punctatus the present insect is larger, the antennz
entirely ferruginous and with the club very much stouter, the thorax more narrowed
anteriorly, and much more coarsely denticulate at the sides, &c.

4. Paratenetus villosus. (Tab. X. figg. 24,9; 24a, labium; 240, maxilla
and maxillary palpus.)

Convex, dark reddish-brown, sometimes lighter, somewhat thickly clothed with long erect hair. Head coarsely
and subconfluently punctured, transversely impressed in front; antennse stout, rather long, the club mode-
rately stout, closely punctured, similar in both sexes, and the two lower joints rather broader than long,
ferruginous, the club piceous ; eyes large; prothorax transverse, widest at or a little before the middle, the
sides slightly rounded and narrowing anteriorly, the rather prominent lateral margins irregularly crenulate,
the posterior angles acute, the anterior angles obtuse, the base in the middle transversely grooved within,
the surface rather more coarsely punctured than the head, the punctures more or less confluent ; elytra
long, widest beyond the middle, convex, strongly margined, the surface coarsely and rather closely punc-
tured (the punctures coarser, closer, and more or less confluent outwardly) and transversely and irregularly
wrinkled towards the sides and apex; legs ferruginous, the femora and tibixs sometimes infuscate ;
anterior and intermediate tibiee slightly curved, the anterior pair armed with a sharp tooth on the lower
side about the middle, and the basal half of the latter and of the posterior pair also finely denticulate.

within, and the anterior femora with a strong blunt tooth at the extreme base beneath in the male.
Length 52-63 millim. (3 9.)

Hab. Mexico, Jalapa (Hége); Guaremata, San Gerdnimo (Champion); Panama,
Volcan de Chiriqui (Champion).

Six examples. This, the largest species of the genus, is allied to P. punctatus, but
will be known from that insect by its much larger size, the thorax less coarsely crenu-
late at the sides, the limbs stouter, the club of the antenne broader and stouter and.
the two lower joints not so transverse, the more pronounced male characters, &c.

We figure a male example from Jalapa.

PARATENETUS. 241

5. Paratenetus punctatus.
Paratenetus punctatus, Spin. Essai monogr. Clér. ii. p. 118, t. 44. figg. 5, 5 d-d*; Horn, Rev. Ten.
of Am. north of Mexico, p. 8373” (nec Motsch.).
Hab. Norto America, Middle and Eastern States 2—-MeExico, Jalapa (Hoge) ;
British Honpvuras, R. Sarstoon (Blancaneauz).

The six Central-American examples before me agree so closely with Spinola’s
description and figures, and with an individual from the United States in Mr. F. Bates’s
collection, that I have little doubt they should be referred to this species. In the male of
our insect the tibiee are more swollen than in the female, the anterior and posterior pairs
very slightly, the intermediate ones distinctly, curved ; the anterior tibize armed (as usual)
with a sharp tooth in the middle beneath, the intermediate pair very finely serrate
beneath, and with the inner apical angles slightly produced. The club of the antenne
is distinctly piceous. In one or two of our specimens the thorax is more coarsely
crenulate at the sides, and the anterior angles more prominent than in others; but I
look upon these as varieties only.

Motschoulsky’s P. punctatus (ef. Bull. Mosc. xli. pt. 2, p. 192) is probably another
species, as already noted by Dr. Horn (op. cié. p. 374).

6. Paratenetus corticarioides.

Moderately convex, reddish-testaceous or reddish-brown, rather thickly clothed with short decumbent hair.
Head coarsely and very closely punctured, transversely impressed in front; antenne rather short, the
club (as in P. punctatus) not very stout (the two lower joints transverse) and closely punctured, reddish-
testaceous, the club (except at the extreme apex) and sometimes the two preceding joints, piceous ; pro-
thorax transverse, widest a little before the middle, the sides narrowing a little and slightly rounded
anteriorly, the lateral margins prominent and finely crenulated, the posterior angles more or less acute,
the anterior angles very obtuse and almost rounded, the surface coarsely and very closely punctured ;
elytra rather long, coarsely punctured, the punctures closely placed on the disc, confluent towards the
sides; legs light ferruginous.

Length 44-4? millim. (2.)

Hab. Mexico, Juquila (Sallé); Guaremata, San Gerdnimo (Champion).

Three female examples. Allied to P. punctatus, but much larger, the sides of the
thorax not nearly so coarsely crenulate and more distinctly margined, the surface
(possibly abraded) clothed with shorter hair; the antenne are coloured and the club
(though rather stouter) is formed as in that species.

7. Paratenetus obovatus.
Closely resembling P. corticarioides and differing as follows :—antenne rather shorter, the club similarly formed
and coloured ; the prothorax less narrowed anteriorly, the sides straighter and finely crenulate ; the elytra
shorter, widening from the base to considerably beyond the middle, broadly rounded at the apex ; the legs

shorter.
Length 33-3? millim. (@.)

Hab. Brivisn Honpuras, Belize (Blancaneauz).
Three examples. This species will be known from P. corticarioides by the compara-
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1886. 2II

242 HETEROMERA.

tively shorter legs and antenne, the elytra widened behind (the general form in conse-
quence being obovate), &c.; the upper surface is similarly clothed with short decumbent
hair, amongst which a few longer hairs are here and there to be seen.

8. Paratenetus crenulatus.

Moderately convex, reddish-brown, slightly stained with piceous, clothed with rather long decumbent hair.
Head coarsely and subconfluently punctured, transversely impressed in front ; antenne ferruginous, the
club piceous, moderately large, and with the two lower joints transverse ; prothorax broader than long,
widest about the middle, the sides slightly rounded, and about equally narrowed at the base and apex,
the lateral margins rather coarsely crenulate, the anterior angles obtuse, the posterior angles acute, the
surface punctured like the head; elytra widest behind the middle, the surface with numerous shallow
transverse rather coarse punctures, which towards the sides are arranged in more or less interrupted
longitudinal rows, the sutural region smoother, the interspaces towards the sides irregularly wrinkled ;
legs more or less ferruginous.

Length 3% millim. (92.)
Hab. Pawama, Bugaba, Volcan de Chiriqui (Champion).

Two female examples. P. crenulatus is not very closely allied to any other species
here described ; it will be known by the irregular rows of shallow punctures on the
sides of the elytra and the coarsely and confluently punctured thorax. ‘The elytra are
much more closely punctured and wrinkled in the specimen from the Volcan de
Chiriqui.

9. Paratenetus brevipennis.

Moderately convex, reddish-brown, stained with piceous, clothed with long erect hair. Head coarsely and
confluently punctured, transversely impressed in front; antenne rather long, with a moderately stout,
loosely articulated 3-jointed club, ferruginous, the club (except at the extreme apex) piceous ; prothorax
transverse, feebly rounded at the sides, widest in the middle, about equally narrowed at the base and
apex, the angles acute, the sides crenulate, the surface punctured. like the head; elytra comparatively
broad and short, much broader than the prothorax, slightly rounded at the sides, with irregular interrupted
rows of very coarse punctures, the sutural region more finely and sparingly punctured; legs rather
stout, reddish-testaceous, the femora and tibiz stained with piceous ; tibie slightly curved, the anterior
pair armed on the inner side a little before the middle with a sharp tooth, and the inner apical angles
of the intermediate pair distinctly (those of the posterior pair slightly) produced, in the male.

Length 31 millim. (d¢.)

Hab. Panama, David in Chiriqui (Champion).

One example.

10. Paratenetus tuberculatus, (Tab. X. fig. 25, ¢.)

Convex, reddish-brown or piceous, rather thickly clothed with long cinereous erect hair. Head coarsely and closely
punctured, transversely impressed in front ; antenne similar in both sexes, the club stout, coarsely punc-
tured, and with the two lower joints broader than long, more or less piceous, the basal joints (and some-
times the extreme apex of the club) ferruginous; eyes comparatively large, coarsely faceted ; prothorax
broader than long, widest about the middle, the sides slightly rounded and narrowed anteriorly,
the lateral margins prominent and coarsely crenulated, the anterior angles obtuse, the posterior angles
acute, the base transversely grooved within in the middle, the dise with an irregular curved or sinuous
depression on each side, the surface very coarsely, closely, and irregularly punctured, the punctures con-
fluent at the sides; elytra very convex, slightly rounded at the sides, widest beyond the middle, the apex

PARATENETUS., 243

broadly rounded, the surface closely covered with short and very irregular longitudinal or sinuous
smooth elevations, the space between the elevations irregularly and coarsely wrinkled, the sutural
region rather smoother; legs (the femora and tibiz especially) rather slender, reddish-brown or piceous ;

anterior tibize in the male armed with a sharp tooth on the lower side about the middle, the hinder
pairs simple.

Length 43-53 millim. (¢ 2.)
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. P. tuberculatus will be readily identified by its convex form,
large eyes, tuberculate elytra, and rather slender legs; the anterior tibiz in the male
armed with a sharp tooth.

11. Paratenetus denticulatus. (Tab. X. fig. 26, 2.)

Moderately convex, reddish-testaceous, pubescent. Head short, extending very narrowly at the base on each
side behind the eyes (the eyes at first sight appearing angular behind), shallowly impressed transversely
in front, very closely and rather finely punctured; antenne short, the joints of the club small (the two
lower joints transverse), testaceous, the club scarcely darker; prothorax transverse, widest a little before
the base, widely denticulate at the sides, the denticles closer and shorter behind the middle, the front
denticle (forming the anterior angle) the largest and directed backwards, the surface closely and rather
finely punctured ; elytra widening a little from the base to beyond the middle, finely and not very closely
punctured ; legs short.

Length 23 millim. (9.)

Hab. Panama, Bugaba (Champion).

This small species is possibly allied to P. tropicalis, Motsch., but with the sides of
the thorax strongly denticulated, and the club of the antenne differently formed. ‘The
single example before me is abraded and in a bad state of preservation. P. denticulatus
closely resembles a species of Corticaria.

12. Paratenetus tropicalis.
Paratenetus tropicalis, Motsch. Bull. Mose. xli. pt. 2, p. 193 ‘
Hab. Panama, Obispo }.
This species is compared by Motschoulsky to P. grandicornis, and is described as
having “the club of the antenne testaceous and smaller, the upper surface covered
with punctures and sparsely clothed with long hairs ; the length @ lin.” *.

Group CNODALONIDES.

Most of the Tropical South-American genera, Campsia and a few others excepted,
have at least one representative in our country. The majority of the species are of large
size and mostly of brilliant, more or less metallic colours; a large number of those
contained in collections still remain undescribed. The “ Cnodalonides ” are confined
to the tropical regions of the Old and New World, and to Australia and New Zealand ;
America north of Mexico has no representative. Several new genera have been required

# Too late for insertion here I have discovered in the collection several additional small species of Para-

tenetus ; they will be included in the Supplement.
2112

244 HETEROMERA.

for the Central-American species. Nautes and Tarpela, placed in this group by their
describers, are here referred to the “‘ Helopides.”’

The different species are chiefly found by beating the branches of decaying forest
trees, or upon herbage on the margins of the forest; doubtless the earlier stages
are passed in decaying timber.

CYRTOSOMA.

Cyrtosoma, Perty, Del. anim. artic. Brasil. p. 59 (1830) ; Lacordaire, Gen. Col. v. p. 418.
Cnodalon, Castelnau, Hist. Nat. Ins. Col. ii. p. 229 (partim).

This Tropical-American genus is represented in Central America by two species, one
of which (C. denticolle) is the largest and most typical of the known forms, and
characteristic of our region. In Cyrtosoma, at least in our species, the mandibles are
cleft at the apex, and not truncate as in most of the genera of “ Cnodalonides.”

These insects are found beneath the loose bark of decaying forest trees and also by
beating dead branches.

1. Cyrtosoma denticolle. (Tab. XI. fig. 1.)
Cyrtosoma denticolle, Chevr. Petites Nouv. Ent. ii. p. 273°.

Hab. Mexico, Cordova (Sailé); British Honpuras, Belize (Blancaneauxr) ; GuatE-
MALA }, Lanquin, San Juan in Vera Paz, Chacoj, Teleman, Panzos, Cerro Zunil (Cham-
pion); Nicaragua (Sallé), Chontales (Belt, Janson); Costa Rica (Sallé); Panama
(coll. F. Bates), Chiriqui (Ribbe), Volcan de Chiriqui, Bugaba, David (Champion).—
CoLomBIA, Bogota.

A common species throughout our country, and extending southwards into Colombia ;
C. denticolle is found from the sea-level up to an elevation of 4000 feet. Allied forms,
C. atrum, Serv., and C. unicolor, Perty, are found in South America.

2. Cyrtosoma decem-lineatum. (Tab. XI. fig. 2.)

Oblong ovate, broad, convex, black, rarely reddish-brown, shining. Head shallowly, finely, and sparingly
punctured, transversely impressed in front; prothorax strongly transverse, slightly and about equally
narrowed at the base and apex, strongly margined, the sides broadly and shallowly emarginate before the
rounded anterior angles, still more feebly so about the middle, and also just before the subacute hind
angles, the base strongly margined, the surface very shallowly, finely, and sparingly punctured ; scutellum
smooth ; elytra convex, finely punctate-striate, the striae not very deeply impressed, the interstices flat,
exceedingly finely and almost imperceptibly punctured, the alternate ones red from the base—the first
(or sutural) to the apex, the third and seventh united a little before the apex and enclosing the abbre-
viated fifth, the ninth also abbreviated behind, the first, third, and fifth united at the base, and the seventh
and ninth also a little below the shoulder; beneath shining, the ventral surface longitudinally wrinkled
and sparingly punctured ; prosternum horizontal, longitudinally grooved on each side, the apex strongly
produced and received by the deeply excavate V-shaped mesosternum.

Length 8-103 millim.

Hab. Mexico, Cordova (Sallé) ; Brrtise Honpuras, Belize (Blancaneauax) ; NICARAGUA,
Chontales (Belt, Janson, coll. F. Bates); Panama, Bugaba (Champion).

OTHRYONEUS. 245

Numerous examples. This species is allied to C. cruentatum, Chevr., and C. lineatum,
Perty, from Cayenne ; it will easily be known by red alternate interstices of the elytra.
We figure an example from Bugaba.

OTHRYONEUS*.

Mentum trapezoidal; last joint of the labial palpi ovate, truncate at the apex, that of the maxillary pair
moderately broad, subsecuriform ; mandibles cleft at the apex; ligula strongly exserted; head short,
deeply sunk into the prothorax, the epistoma very short, not very clearly defined, broadly truncate in
front, and separated from the prominent labrum by a membranous clypeus, the antennary orbits slightly
swollen and projecting a little beyond the epistoma in front; eyes small, transverse, convex, widely
separated; antenne short, not reaching the base of the prothorax, the seven outer joints broader, the
sixth to the tenth transverse, the eleventh longer than the tenth and rounded at the apex; prothorax
transverse, very strongly margined, the margins reflexed, the apex broadly arcuate emarginate, the base
strongly bisinuate; scutellum large, scutiform ; elytra closely embracing, and wider than, the prothorax,
long, subparallel, with regular rows of fine punctures, narrowly margined; legs rather short, finely
punctured, the tibie slender; basal joint of the posterior tarsi very short, equal to the two following
joints united, about half the length of the apical one; tibial spurs short, but distinct on all the legs;
prosternum horizontal, grooved on each side, the apex produced ; mesosternum narrowly raised, V-shaped,
and deeply concave within in O. maculipennis, concave in O. erotyloides; metasternum long; intercoxal
process rather broad, rounded in front; epipleure extending to the apex of the elytra; form oblong ovate
or elongate ovate, subparallel ; body glabrous, winged.

This genus includes two species, one from Colombia and one from Nicaragua.
In Othryoneus the head is formed much as in Cyrtosoma; amongst its allies the genus
will be known by its elongate shape, the strongly margined broad thorax, the complete
epipleur, the short but distinct tibial spurs, the comparatively narrow apical joint of
both the maxillary and labial palpi, the cleft mandibles, the very lightly punctate-
striate elytra, &c. The two species somewhat resemble Erotylide, and indeed have
the elytra maculated as in various Tropical-American species of that family inhabiting
the same region ; both are unique. Jam unable to detect any external sexual characters ;
possibly both the specimens are females. An allied undescribed South-American genus
is contained in Mr. F. Bates’s and in the British Museum collection.

* The species described below as O. maculipennis stands in Mr. F. Bates’s collection under a MS. generic
name which I would adopt were it not already in use.

t Othryoneus maculipennis.

Shorter and less parallel than O. erotyloides ; the antennz shorter, with the penultimate joints more transverse,
wholly black; the head with a deep transverse impression on each side in front ; the prothorax rounded
at the sides before the middle, narrowing anteriorly, the sides straight from the middle to the base, black ;
the scutellum black ; the elytra shorter and broader and less parallel than in 0. erotyloides, the apex
broadly rounded, the rows of punctures more shallowly impressed, the punctures placed closer together,
the interstices exceedingly finely and sparingly punctured, testaceous, the base in the middle (whence a
short oblique streak extends a little way down each elytron), the suture, two large irregular spots (one
near the suture, the other near the lateral margins) on each side before the middle, a zigzag band a little
beyond the middle (not reaching the suture or lateral margin), and the apical third, black ; beneath and
the legs black.—Length 123 millim.— Hab, Cotoms1a, Bogota. A single example in Mr. F. Bates’s collection.

246 HETEROMERA.

1. Othryoneus erotyloides. (Tab. XI. figg. 3: 8a, labium; 30, maxilla and
maxillary palpus.)

Elongate ovate, moderately convex, black, very shining. Head very finely and closely punctured, transversely
and deeply excavate in front; antenne black, the two basal joints red; prothorax scarcely narrowing
anteriorly, the sides almost straight, the anterior angles broadly rounded, the hind angles slightly pro-
duced, prominent, and subacute, a deep rounded fovea on each side in the middle near the lateral margin,
the base with a shallow oblique fovea on each side, the disc with a deep transverse impression in the
middle just before the base, the surface very shallowly, finely, and sparingly punctured, red, the base in
the middle, the middle of the disc partly, and the reflexed margins, black; scutellum smooth, black ;
elytra long, parallel to beyond the middle, the humeri slightly swollen and impressed within for the
reception of the hind angles of the prothorax, with rows of fine shallow punctures which are almost
obsolete towards the apex, the interstices smooth and quite flat, reddish-testaceous, the shoulders and
part of the base, the lateral margins very narrowly, the suture, a large oblong spot on the disc some
distance before the middle, between which and the lateral margin (but a little lower down) is another
much smaller spot, a very broad zigzag band (widening inwardly) behind the middle, and the apex
rather broadly for some distance along each side of the lateral margin, black; legs black, the base of the
anterior femora beneath red; beneath shining, black, the flanks of the prothorax broadly red, the ventral
surface reddish-brown, finely and sparingly punctured, the ventral surface longitudinally and very
evidently, the space between the eyes very coarsely and transversely, wrinkled.

Length 132? millim.

Hab. Nicaracua, Chontales (Janson).

CAMARIA.

Camaria, Saint-Fargeau & Serville, Encycl. Méthod. x. p. 454 (1825) ; Lacordaire, Gen. Col. v.
p. 423.
Cameria, Castelnau, Hist. Nat. Ins. Col. 11. p. 231.

This genus contains many closely allied species, the majority of which existing in
collections are still undescribed. Camaria is confined to tropical regions, but is far
more numerously represented in the New than in the Old World; the Tropical-
American species do not greatly differ from those of the Old World; in the New
World the genus ranges from Brazil to the Colombian State of Panama, whence one
species is now recorded.

1. Camaria parallela. (Tab. XI. fig. 4, ¢.)

Elongate ovate, moderately convex, rather narrow, brownish-bronze, shining. Head finely, shallowly, and
sparingly punctured, a long oblique groove on each side (forming a continuation of the lateral limit of
the epistoma) extending posteriorly as far as the eyes and continued transversely across the intraocular
region, enclosing a large triangular flattened and depressed space; antenne long, slender; prothorax
transverse, the sides rather strongly margined, broadly and very shallowly emarginate a little before the
middle, scarcely narrowing anteriorly, straight behind, the anterior angles broadly rounded, the hind
angles subrectangular, the base bisinuate, the disc with a shallow rounded impression in the middle
behind, the surface very shallowly, finely, and sparingly punctured; scutellum shallowly punctured ;
elytra long, parallel to beyond the middle, the humeri swollen and shallowly emarginate, punctate-striate
the strie deeply impressed and very closely, finely, and shallowly punctured, the interstices feebly a
almost impunctate ; legs reddish-brown or bronzy, the knees and tarsi bluish-black ; the slightly curved
anterior and intermediate tibiee dilated (the intermediate pair very broadly and abruptly) at their inner
apices, and the three basal joints of the anterior tarsi broadly dilated in the male; prosternum narrow,

CAMARIA.—MOPHON. 247

acuminate, horizontal, the apex much produced and received by the deeply concave V-shaped mesosternum ;
beneath shining, brownish-eneous, the ventral surface longitudinally wrinkled.
Length 233 millim. (¢.)

Hab. Panama, Bugaba (Champion), Chiriqui (Zrétsch).

This species is allied to the undescribed C. wraria, Dej., of South America; in the —
structure of the head it approaches C. clandestina, Pasc., from Para.
Two examples, both males.

BLAPIDA.

Blapida, Perty, Del. Anim. artic. de Brasil. p. 58 (1830) ; Castelnau, Hist. Nat. Ins. Col, i. p. 282;
Lacordaire, Gen. Col. v. p. 425.
Ryssochiton, Gray, in Griffith’s Animal Kingdom, Ins. ii. t. 50. fig. 4, & t. 69. figg. 2 a-f (descr.

nulla).

This genus contains about six species, all of large size; three only have been
described as yet. Blapida is confined to the tropical regions of the New World; one
species is now known to inhabit Central America; the genus ranges from the Amazon
valley to Guatemala. The different species bear a certain superficial resemblance to
the Buprestide ; all have the apex of each elytron produced into a sharp spine.

1. Blapida neotropicalis. (Tab. XI. fig. 5, ¢ .)

Dull greenish-bronze, rarely reddish-brown tinged with green. Head very finely and clasely punctured, the
vertex more sparingly so; prothorax broader than long, subquadrate, scarcely narrowing anteriorly, the
sides straight from the middle to the base, the anterior angles rather broadly rounded, the posterior angles
rectangular, the surface exceedingly finely and rather sparingly punctured ; elytra deeply striate, the
strie in some examples very closely, finely, and subtransversely punctured throughout, in others obsoletely
so towards the suture, the interstices slightly convex, smooth, dull greenish-yellow in light-coloured fresh
examples, obscure brownish-olivaceous in dark-coloured faded specimens, the striz more or less stained
with grass-green, the terminal spines strong and darker in colour ; legs varying in colour—red, reddish-
brown, or dark bronze ; intermediate tibie widened on the inner side at the apex in the male; beneath
dark bronze, shining, almost imperceptibly punctured.

Length 18-21 millim. (¢ 2.)

Hab. Guatemata, El Jicaro in Vera Paz (Champion); Nicaragua, Chontales (Belt,
Janson, coll. F. Bates).

Numerous examples. We figure a light-coloured male from Chontales. An allied
undescribed species is found in Southern Colombia.

MOPHON.

Mophon, F. Bates in litt.

Mentum trapezoidal, deflexed at the sides; last joint of the labial palpi very broad, rounded at the apex, that
of the maxillary pair broad and securiform ; mandibles truncate at the apex; head large, not deeply sunk
into the prothorax, the epistoma short, well defined, broadly truncate in front, and separated from the
prominent labrum by a membranous clypeus, the antennary orbits slightly swollen and rounded externally ;

248 HETEROMERA.

eyes very large, not widely separated, rounded, slightly oblique, the inferior portion smaller ; antennse
long, slender, joint 1 stout and rather long, 2 small, short, about as broad as long, 3 three times as long
as 2 and swollen towards the apex, 4 rather shorter than 3 and of similar shape, joint 5 the length of 4,
joints 5-10 equal in length, scarcely widening outwardly, joint 11 longer than 10 and acuminate at the
apex, the four basal joints glabrous and almost smooth, the others finely punctured and pubescent ; pro-
thorax transverse, deeply bisinuate at the base, very strongly margined; scutellum large, scutiform ;
elytra broad, considerably wider than the prothorax, subparallel to beyond the middle, thence obliquely
narrowing to the subacuminate apex, the shoulders slightly swollen and rounded, strongly margined,
transversely gibbous in the middle, the posterior half broadly flattened, regularly punctate-striate ; legs
long and slender, smooth; tibiz slender, the anterior pair distinctly shorter than the others, and thickly
clothed with fulvous hair on the inner side from about the middle to the apex in the male, more sparingly
so in the female; tibial spurs very short, obsolete from the anterior pair; tarsi thickly clothed with
silky hair beneath, the four hinder ones very long and slender, the anterior pair much shorter and
stouter, the first joint of the posterior pair very long and slender, longer than the apical one in the male ;
the anterior tarsi in the male with four joints only, the first joint large and swollen and formed by the
anastomosed first and second joints, in the female five-jointed; prosternum broad, horizontal, the apex
acuminate and much produced and received by the deeply concave mesosternum, the anterior face of which
is strongly raised and tuberculate on each side; metasternum long, broadly transversely declivous behind ;
intercoxal process broad, triangular; epipleure abruptly ending at the last ventral suture; body glabrous,
metallic, winged.

This new genus is remarkable on account of the very long and slender intermediate
and hind legs (their tarsi being especially slender), and the above-described structure of
the anterior tarsi in the male. This structure is identically the same in the numerous
male examples before me; in all, the first and second joints are closely anastomosed
into one large solid piece without visible suture, the anterior tarsi thus being four-jointed
only in this sex. Mophon is not very closely allied to any described genus; it should
be placed near Camaria. One species only, from Central America, is known to me.

1. Mophon tinctipennis. (Tab. XI. figg. 6, ¢; 6a, labium; 60, maxilla and
maxillary palpus.)

Oblong ovate, broad, metallic olive-green, very shining. Head very sparingly and almost imperceptibly punc-
tured, a deep impression on each side before the eyes ; prothorax punctured like the head, the base very
strongly margined and with a distinct oblique fovea on each side, the sides more or less broadly and very
shallowly emarginate in the middle, thence straight to the base, abruptly and very obliquely narrowing
anteriorly, the anterior angles very obtuse, the lateral margins strongly reflexed; scutellum smooth ;
elytra, if anything, widest beyond the middle, with regular rows of coarse impressions from the base to
the apex (closely placed towards the base, more distant and consisting of coarse and fine impressions
towards the sides and apex), broadly and shallowly depressed on each side at the base and also in the
middle behind the scutellum, the interstices quite flat and almost impunctate, the apical half (and some-
times the disc) tinged with purplish-cupreous; beneath bluish-green, almost smooth, the metasternum at
the sides transversely, and the ventral surface longitudinally, wrinkled.

Length 183-21 millim. (¢ 9.)

Hab. Nicaracua, Chontales (Belt, coll. F. Bates) ; Panama, Volcan de Chiriqui 3000
to 4000 feet (Champion).

Numerous examples.

EPICALLA. 249

EPICALLA.
Epicalla, De}. Cat. 8rd edit. p. 219; Lacordaire, Gen. Col. v. p. 309, nota.

Mentum trapezoidal; last joint of the labial palpi very broad and stout, rounded at the apex, that of the
maxillary pair broadly securiform ; ligula strongly exserted ; mandibles truncate at the apex ; head short,
rather deeply sunk into the prothorax; epistoma very short, sharply defined posteriorly by a deeply
impressed transverse groove (limited on either side in front of the eyes by a deep fovea, the narrow anten-
nary orbits in consequence prominent), truncate and projecting far beyond the orbits in front, separated
from the labrum by a more or less distinct membranous clypeus; eyes very large, not widely separated,
slightly oblique; antennee variable, long, with the outer joints longer than broad, or much shorter, with
the penultimate joints subtransverse; prothorax transverse, strongly margined, the base bisinuate and
with a broad oblique fovea on each side; scutellum large, scutiform; elytra convex, wider than and
closely embracing the prothorax at the base, rather long, usually widening to beyond the middle, thence
obliquely narrowing to the apex, somewhat strongly margined, a broad oblique impression on each side
some distance within the swollen humeri, sometimes transversely impressed on each side just below the
base, the latter appearing strongly margined, finely punctate-striate ; legs not very stout, shining, finely
and sparingly punctured, the femora slightly swollen, the anterior tibiz# in both sexes clothed with short
silky hair on the inner side towards the apex; tarsi thickly clothed with silky hair beneath, the anterior
pair more or less dilated in the male, the first joint of the posterior pair rather long (longer than the
two following joints united), equalling the apical one in length; tibial spurs almost or quite obsolete ;
prosternum broad, horizontal, the anterior face hollow and declivous, sometimes swollen longitudinally on
each side externally between the cox, the apex moderately produced and abruptly acuminate; meso-
sternum more or less concave ; intercoxal process broad, rounded or subtriangular in front; epipleure
ending abruptly at the last ventral suture; form oblong ovate or obovate, convex; body glabrous, highly
polished and metallic, winged.

This genus includes the Brazilian L. sudsulcata of Dejean’s Catalogue, various un-
described forms from Venezuela and Colombia, and the three new species from Central
America described here. Lpicalla will be recognized by the characters given; the
species are comparatively rather small in size (E. data excepted). ‘The genus should
be placed near Hlomosda and the South-American Thecacerus. Other allied unde-
scribed South-American genera exist in collections, one of which contains species
superficially resembling Hpitragus. The three species of Hpicalla here recorded,
though not very closely allied, agree in their chief structural characters. In the
South-American . subsulcata, Dej., the male tarsi are very evidently dilated ; in the
males (the only sex I am able to identify) of our species the tarsi are only moderately
dilated.

1. Epicalla varipes. (Tab. XI. figg. 7, ¢; 7a, labium; 76, maxilla and
maxillary palpus.)

Oblong ovate, eeneous, very shining. Head smooth, impunctate ; antenne long, joint 2 short, about as broad
as long, joint 3 nearly three times as long as 2, joint 4 shorter than 3, Widening outwardly, joints 5-10
very slightly increasing in length outwardly, longer than broad, joint 11 the width of but longer than 10
and very bluntly rounded at the apex, joints 5-11 finely and closely punctured, dull, and pubescent, the
rest smoother and shining, ferruginous ; prothorax transverse, very strongly margined, the margins deeply
grooved within, widest at the base, the sides sinuate from the middle to the outwardly produced subacute
hind angles, slightly narrowing anteriorly, the anterior angles broadly rounded, the disc deeply impressed
transversely in the middle behind, and with a shallow central groove ending in a deep longitudinal
impression, the basal fovese deep and connected anteriorly with the discal fovea by a shallow transverse

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1886. 9KK

250 HETEROMERA.

sinuous groove, the surface with a few widely scattered fine shallow punctures ; scutellum smooth ; elytra
strongly margined, gradually widening to beyond the middle, deeply transversely impressed on each side
below the base (the base appearing broadly margined), narrowly and finely punctate-striate, the interstices
flat on the disc, subangularly raised towards the apex and less distinctly so at the sides, smooth ; femora
cupreous, the tibie metallic green, the tarsi ferruginous suffused above with metallic green ; beneath
geneous, very shining, almost impunctate, the ventral surface very finely longitudinally wrinkled ; inter-
coxal process almost rounded in front, margined.
Length 103- 2 millim.; breadth 5 millim. (¢.)

Hab. Nicaracua, Chontales (Belt, coll. F. Bates).

Three examples, apparently all males.

2. Kpicalla lata. (Tab. XI. fig. 8.)

Obovate, broad, sneous, very shining. Head finely and sparingly punctured, reddish-ferruginous, suffused
with sneous; antenne rather short, joint 3 rather more than twice as long as 2, joint 4 shorter
than but much wider than 3, rather longer than broad, joints 5-10 equal, subtransverse, joint 11
longer than 10, widening ontwardly, broadly and bluntly rounded at the apex, the eight outer joints
somewhat flattened, coarsely rugulose, black, the rest ferruginous and smoother ; prothorax transverse,
strongly margined, the sides straight and slightly widening from the middle to the base, obliquely narrowing
and slightly rounded before the middle, the anterior angles broadly rounded, the hind angles obtusely
subrectangular, the basal foves broad and irregular, the surface sparingly punctured, the punctures fine
but very deeply impressed ; scutellum slightly convex, sparingly punctured ; elytra broad, widening from
the base to considerably beyond the middle, with regular rows of fine, closely-placed, lightly impressed
punctures (scarcely striate), which become almost obsolete before the apex, a sharp keel on each side
(just within the seventh row of punctures) extending a short distance upwards from the apex, the inter-
stices broad, quite flat (except at the sides) and impunctate, the ninth slightly convex beyond the middle ;
legs (including the coxee) ferruginous, the outer half of the last joint of all the tarsi abruptly black ;
beneath seneous, almost smooth, the head, the sterna, and the ventral surface more or less ferruginous, the
latter very finely longitudinally wrinkled.

Length 123 millim.; breadth 7 millim.

Hab. Muxtco (Sailé). One example.

8. Epicalla cupreo-nitens, (Tab. XI. fig. 9.)

Obovate, fiery metallic purple, with vivid cyaneous reflections, very shining. Head almost impunctate, purple,
the anterior half blue; antenne as in Z. lata, but shorter; prothorax very short, strongly transverse,
narrowing from the base, the sides rounded anteriorly, very strongly margined, the margins deeply grooved
within, the anterior angles broadly rounded, the hind angles prominent but not acute, the disc with a
shallow central groove and a transverse impression before the base, the basal fovese deep and extending
forwards, the surface sparingly, finely, and shallowly punctured, purple, the margins and the basal half more
or less suffused with vivid cyaneous tints; scutellum longitudinally convex, smooth ; elytra widening to
considerably beyond the middle, narrowly but deeply striate, the stris finely and shallowly punctured, the
interstices nearly flat on the basal half, subangularly raised and almost keeled at the apex, smooth, the
surface of a most vivid fiery cupreous tint without blue reflections, the extreme lateral margins slightly
tinged with golden ; legs blue; beneath smooth, bluish-purple, the epipleure golden-cupreous, the ventral
surface finely longitudinally wrinkled.

Length 10 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One example. This is one of the most vividly-coloured species of Tenebrionids
known to me,

MON. 251

MCEON.

Mentum, palpi, and labium much as in Eprcalla; mandibles cleft at the apex; antenne rather long, the joints
slightly widening and lengthening outwardly, longer than broad, joints 3 and 4 subequal in M. isthmicus,
joint 4 a little shorter than 3 in WM. panamensis, each about twice as long as 2, the apical joint much longer
than the tenth, not widening outwardly, and subacuminate at the apex; head short, the epistoma limited
posteriorly by a more or less deep transverse impression, truncate and projecting beyond the sides in
front, separated from the labrum by a membranous clypeus; eyes small, rounded, widely separated ;
prothorax convex, transverse, the sides strongly, and the base in the middle shallowly, margined, the
lateral margins reflexed, narrowly grooved within, and not quite reaching the posterior angles, the base
bisinuate, and with a deep fovea on each side; scutellum moderately large, broad, subtriangular ; elytra
long, convex, broader than the prothorax, narrowly margined, rounded at the shoulders, the humeri distinct
but obtuse, subparallel, punctate-striate ; legs moderately stout, smooth, the anterior tibisee on the inner
side towards the apex clothed (as in Zpicalla) with short silky hair, the tibial spurs very short and almost
obsolete ; the first joint of the posterior tarsi short, the length of the two following joints united, but much
shorter than the apical one; prosternum broad, horizontal, longitudinally impressed in the middle, the apex
strongly produced and abruptly acuminate ; mesosternum concave, the sides narrowly raised ; metasternum
long; intercoxal process broad, triangular; epipleure ending abruptly at the last ventral suture; form
oblong ovate, convex ; body glabrous, polished and metallic, winged.

This genus, separated by Mr. F. Bates under a preoccupied MS. name, contains two
closely allied species from the Colombian State of Panama. eon may be known
amongst its allies by its small, rounded, and widely separated eyes, the cleft mandibles,
the structure of the antenne, the convex thorax (the reflexed lateral margins of which
are abbreviated behind and do not quite extend to the posterior angles), the long
convex elytra, the shortened epipleure, &c.

1. Mcon isthmicus.

Oblong ovate, convex, greenish-bronze, very shining. Head finely, shallowly, and sparingly punctured, the
front broadly flattened, the transverse impression deep ; prothorax strongly rounded at the sides anteriorly,
the sides very feebly sinuate (almost straight) behind the middle, the anterior angles rounded, the hind
angles thin and subacute, a transverse sinuous groove (shallow on the disc but very deeply impressed at the
sides and there confluent with the deep basal foveze) some distance before the base, the surface very sparingly,
shallowly, and finely punctured ; scutellum smooth ; elytra widest in the middle, subparallel, transversely
impressed on each side below the base, narrowly but deeply punctate-striate throughout, the punctures
fine and closely placed, the interstices smooth and towards the apex distinctly convex, of a lighter eneous
tint than the head and prothorax and without greenish reflections; legs dark greenish-bronze, the antennse
dark ferruginous; beneath dark greenish-bronze, shining, almost smooth, the ventral surface shallowly

and irregularly wrinkled.
Length 9 millim. (¢.)

Hab. Panama, Obispo (Salvin).

One male example.

9. Mceon panamensis, (Tab. XI. figg. 10,2; 10a, labium; 10, maxilla and

maxillary palpus.) 7 |
Closely resembling M. isthmicus, and differing as follows:—The antenne darker; the prothoracic impressions

shallower; the elytra more convex and less parallel, the strie finer and much more lightly impressed,
]

2KK 2

252 HETEROMERA.

still finer and shallower towards the apex, the interstices quite flat throughout; the rest much as in
M. isthmicus.
Length 83-9 millim. (3 2.)

Hab. Panama, Bugaba (Champion).

Two examples, differing as above.

ELOMOSDA.
Elomosda, ¥. Bates, Ent. Monthly Mag. vi. p. 273 (1870).

This genus is apparently confined to Central America; it contains a single species
of large size. Elomosda somewhat closely resembles the genus Hegemona of the
“‘ Misolampides.”

1. Elomosda belti.
Elomosda beltii, F. Bates, loc. cit. p. 275, t. 2. f. 8, go’.

Hab. Guaremaua, Coban (Champion); Nicaracua, Chontales (Belt 1, Janson, coll. F.
Bates).
ACROPTERON.
Acropteron, Perty, Del. Anim. artic. de Brasil. p. 64 (1830); Lacordaire, Gen. Col. v. p. 426;
Maklin, Monogr. in Act. Fenn. vii. p. 103 (1862).
Arthroplatus, Solier, in Gay’s Hist. fisica y politica de Chile, Zool. v. p. 246.
Sphenosoma, De}. Cat. 3rd edit. p. 233.

This genus contains a large number of closely allied species, all of which are confined
to Tropical America; Maklin, in his Monograph (op. cit.), described twenty-two,
including two from Central America, and since then none appear to have been recorded.
Twelve species inhabit our country, no less than ten of which are described as new.
The species are apparently not widely distributed, and seem to be confined to a limited
area. A large number of undescribed South-American forms exist in collections. I
have not been able to trace for certain a single one of our species south of the isthmus
of Panama, nor to identity any of the Central-American species before me, A. agriloides
excepted, with any of those described by Maklin. The Central-American species all
belong to Maklin’s “ Division B,” in which the thorax is uninterruptedly margined at
the base.

Certain South-American species (A. rufipes, &c.) are of a bright metallic green or
purple tint (these mostly belong to Maklin’s “ Division A,” in which the basal margin |
of the thorax is more or less obsolete in the middle); those inhabiting our country,
however, are all more or less of a greenish-bronze or brownish-zneous colour. The
males of some species have the underside of the femora (more distinctly so in the South-
American forms of Maklin’s “ Division A”) fringed with short hair beneath *, and the
trochanters with a few longish bristles; the posterior tibie shallowly or abruptly emar-

* This and the shorter antenne in the female are the only sexual characters noticed by Miklin and
Lacordaire.

ACROPTERON. 253

ginate (sometimes thus forming a subtriangular tooth) on the inner side some distance
before the occasionally swollen apex, in others the inner face flattened (and dull and
slightly concave within) before the middle for a short distance. Modifications of
these characters are, however, to be met with in the different species; in some
they are almost or quite obsolete. The apical joint of the maxillary palpi in the
male is broader and more triangular in shape than in the female in the species I have
examined.

The sexual organs of both sexes of Acropteron differ greatly from what obtains
in the allied genera: in the male the outer horny sheath of the cedeagus is curved
downwards at the apex, the apex itself narrowly produced and slightly swollen,
and the intromittent organ is extruded from beneath; in the female, instead of the
usual horizontal process, there are two long, thin, horny, vertical plates enclosing a
central tube, the plates together forming a rather broad, flattened, slightly decurved
ovipositor (somewhat similar to that existing in many ‘ Orthoptera’), the apex of which
is more or less pointed. ‘This structure exists in all the species I have examined.
The flattened process of the female is no doubt used to guide the eggs into very
narrow crevices, probably in the bark of decaying trees; the dissection of the female of
a species of the genus Hegemona (H. resplendens), in which the same sort of ovipositor
exists, only even more strongly developed, shows the vaginal opening to be placed
immediately above this.

The different species are chiefly found in the forest-region by beating the decaying
branches of fallen trees. The males of nine Central-American species are known to
me; they may be identified by the following Table :—

Posterior tibiz for a short distance flattened and feebly concave on

theinner side before the middle . .. . . . « « « belti, langurioides.
Posterior tibiz slightly curved, obliquely widened at the j inner apical

angle, the outer half slightly concave within . . . «© « «= méaklini.
Posterior tibiz shallowly emarginate on the inner side some distance

before the apex . . . . . Le . agriloides.
Posterior tibie with a short broad triangular tooth followed by a

rounded emargination on the inner side some distance before

the apex ... ve - angulicolle, calcaratum.
Posterior tibiz with a short broad triangular tooth followed by a

rounded emargination on the inner side some distance before

the apex, and also widened at the inner apical angle . . . . Jlongipenne.
Posterior tibis sinuous, unarmed. . .. - se ee mexicanum.
Posterior tibiz almost straight, unarmed, scarcely differing from

those of the female . . . . . . © + e+ + + # ee 6 puneticolle.

1. Acropteron belti. (Tab. XI. fig. 11, ¢.)

Rather broad, greenish-bronze, very shining. Head very deeply transversely excavate in front, closely, coarsely,
and very irregularly punctured, a rather broad longitudinal space on the vertex impunctate ; eyes strongly

254 HETEROMERA.

transverse ; antennsz piceous-black ; prothorax broad, the anterior angles broad, swollen, and rounded, the
hind angles strongly and acutely produced, the base distinctly emarginate in the middle before the scutellum,
the disc broadly transversely impressed behind, the basal fovew short but deep, the surface comparatively
coarsely, sparingly, and very irregularly punctured, a broad longitudinal space on the posterior half of the
disc more or less impunctate; elytra broad, narrowing very gradually to some distance beyond the middle,
thence more rapidly so to the apex, with rows of shallow fine punctures, the terminal spines rather short ;
legs smooth, sparingly punctured, brownish-eneous; posterior tibie for about one fourth of their length
flattened on the inner side before the middle (this space feebly concave and dull within), and the femora
glabrous (the trochanters with a few longish bristles) beneath, in the male ; beneath very shining, brownish-
eeneous, the metasternum with numerous scattered coarse impressions, the ventral surface finely and
sparingly punctured.
Length 164-173 millim. (¢ 9.)

Hab. Nicaragua, Chontales (Belt).

Three examples. This is the largest and finest of the Central-American species.

2. Acropteron langurioides.

Closely allied to A. belt, and differing as follows:—Smaller and narrower; the head not so deeply excavate,
similarly sculptured; prothorax much more finely and shallowly punctured; the elytra distinctly nar-
rower (especially in the male), and narrowing more rapidly from the base ; the posterior tibiee in the male
formed as in A. belt?; the metasternum more sparingly punctured ; the rest as in A. belt.

Length 14-16 millim. (35 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Many examples. ‘This species will be easily distinguished from A. belti by the above-
mentioned characters; the elytra in most specimens are rather more coarsely striate-
punctate than in that insect, though the thorax is invariably much more finely punc-
tured; the colour of the upper surface is rather more of a golden-bronze, sometimes
the thorax is slightly tinged with cupreous; the transverse depression on the base of
the latter is usually deep.

3. Acropteron maklini, (Tab. XI. fig. 12, 3.)

Greenish-bronze, shining. Head closely, irregularly, and rather coarsely punctured, transversely excavate in
front, a shallow rounded fovea on the vertex; antenne piceous, the two basal joints and the outer half of
the apical one ferruginous ; prothorax broader than long, the anterior angles broadly rounded, the posterior
angles acutely produced, the sides almost straight, the base shallowly emarginate before the scutellum, the
disc very shallowly transversely impressed behind, the basal fovee short but deep, the surface moderately
coarsely, irregularly, and somewhat closely punctured, the punctures not quite so closely placed on the
disc; elytra narrowing from the base, with rows of rather coarse punctures, the terminal spines short;
legs smooth, sparingly punctured, brownish-eneous, sometimes lighter; posterior tibia curved, obliquely
widened on the inner side at the apex, and the outer half slightly concave within, and the femora almost
glabrous beneath, in the male.

Length 10-11} millim. (¢ 9.)

Hab PanaMa, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. From A. agriloides this species will be known by its more
sparingly punctured head and thorax, the latter with the basal foveee more deeply

impressed (the disc as in that species very shallowly impressed behind), smoother tibie,
and male characters.

ACROPTERON. 255

4. Acropteron agriloides. (Tab. XI. fig. 13, 3.)
Acropteron agriloides, Makl. Act. Fenn. vii. p. 121°.

Hab. Mexico}, Cordova, Juquila (Sallé), Misantla (Hége); Guatemata, Zapote,
Senahu, Panzos (Champion).

In this species the thorax is closely, comparatively coarsely, and subequally punctured,
the disc sometimes slightly flattened or shallowly impressed behind, the anterior angles
broad, rounded, and not much produced; the elytra with rows of comparatively coarse
impressions, the terminal spines short; the tibie more or less roughened and punc-
tured, the posterior pair in the male shallowly emarginate on the inner side some
distance before the apex. In the long series of Mexican specimens before me the
thorax is more rounded at the sides in some examples than in others; a single male
from Panzos has the thorax broader (especially anteriorly), and smoother tibiz ; three
females from Senahu, however, agree well with those from Mexico.

5. Acropteron angulicolle.

Closely resembling A. agriloides, and only differing as follows :—The prothorax with more prominent angles,
the anterior ones narrowly, subangularly extended (not broad and rounded), the posterior ones more
acutely produced, the disc not flattened behind ; the posterior tibise in the male abruptly and deeply arcuate

emarginate (thus forming a triangular tooth) on the inner side some distance before the apex.
Length 10 millim. (¢.)

Hab. Nicaragua, Chontales (Belt).

One male example. This insect cannot be treated as a variety of A. agriloides,

differing as it does in the shape of the anterior angles of the thorax and the more
pronounced male characters.

6. Acropteron calcaratum. (Tab. XI. fig. 14, 3.)

Brownish-bronze, shining. Head coarsely and subconfluently punctured, moderately deeply excavate in front,
a distinct longitudinal fovea on the vertex; antennzx piceous; prothorax transverse, the anterior angles
produced and rather broadly rounded, the posterior angles acute and outwardly directed, the base feebly
emarginate before the scutellum, the basal fovew short but deep, the disc broadly transversely impressed
before the base, the surface coarsely and closely punctured, a longitudinal space on the disc impunctate ;
elytra scarcely narrowing to some distance beyond the middle, rather wide, with rows of moderately coarse
rather shallow punctures, the terminal spines narrowly, obliquely, and acutely produced; legs rather
smooth, not very closely punctured, brownish-bronze, the basal two thirds of the tibis and the first joint of .
the posterior tarsi more or less red; posterior tibie with a short broad triangular tooth followed by a
rounded concave emargination on the inner side beyond the middle, and the four hinder femora strongly
fringed with short hairs beneath, in the male.

Length 11-113 millim. (¢ @.)

Hab. Guatmmaua, San Gerdénimo (Champion).

Four examples. This species will be separated from its allies by the thorax being
broadly transversely impressed in the middle behind, the surface coarsely punctured, a
longitudinal space on the disc impunctate; the elytra comparatively shallowly punc-
tured; the posterior tibie armed with a short, broad, triangular tooth.

256 HETEROMERA.

7. Acropteron longipenne. (Tab. XI. fig. 15, 3 .)

Rather long and narrow, greenish-bronze, very shining. Head irregularly, coarsely, and not very closely
punctured, a rather large, somewhat flattened space in the centre of the vertex almost impunctate, mode-
rately deeply excavate in front; antennz very long, ferruginous, the basal half of each joint more or less
infuscate ; prothorax broader than long, the anterior angles broadly rounded, the posterior angles acutely
produced, the base very feebly emarginate before the scutellum, the basal fovez shallow, the disc slightly
flattened anteriorly and broadly, transversely, and shallowly impressed behind, the surface rather coarsely
and somewhat closely punctured, a narrow ill-defined longitudinal space on the disc almost impunctate ;
elytra very long, rather narrow, narrowing from the base, with rows of comparatively coarse punctures,
the terminal spines short; legs smooth, sparingly and shallowly punctured, greenish-bronze, the basal two
thirds of the tibie, the knees, and the tarsi more or less, reddish-ferruginous ; posterior tibize with a broad
short, subtriangular tooth on the inner side some distance beyond the middle, followed by a shallow
rounded emargination, thence to the apex widened, and the femora fringed with short hairs beneath, in
the male.

Length 114 millim. ( 3.)

Hab. Guatemaa, Capetillo (Champion).

One example. A comparatively long, narrow species, not very closely allied to any
other described here.

8. Acropteron mexicanum. (Tab. XI. fig. 16, ¢.)

Rather broad, dark reddish-brown, not very shining. Head coarsely and confluently punctured, the epistoma
and vertex more sparingly so, a large shallow rounded impression on the latter, the frontal excavation
moderately deep ; antenne long, ferruginous ; prothorax broad, the anterior angles broad and rounded, the
posterior angles subacutely produced, the base shallowly emarginate before the scutellum, the basal foves
short but deep, the disc broadly, shallowly, transversely impressed before the base, the surface coarsely
and closely punctured, the posterior half of the disc rather more sparingly so, reddish-brown, suffused with
piceous ; elytra broad, very gradually narrowing from the base, with rows of comparatively coarse punc-
tures, dark castaneous, the terminal spines acutely and narrowly produced ; legs reddish-brown, the femora
almost smooth, the tibie shallowly punctured, the tarsi thickly clothed with fine silky hair beneath ;
posterior tibie sinuous and unarmed, the four anterior tibize clothed with fine silky hair on the inner side
from the middle to the apex, and the femora and trochanters clothed with short hair beneath, in the male;
beneath reddish-brown, slightly tinged with eneous, rather dull.

Length 122 millim. (¢.)

Hab. Mexico, Santecomapan (Sallé).

One example. This species will be known by its dark reddish-brown colour, compa-
ratively broad form, closely and coarsely puactured thorax, and male characters; the
tarsi very thickly clothed with silky hair beneath.

9. Acropteron puncticolle.

Brownish-bronze, not very shining. Head including the vertex coarsely, very closely, and subconfluently
punctured, the transverse excavation moderately deep, a shallow fovea on the vertex; antenne piceous,
the basal joint and the apical one ferruginous; prothorax transverse, the anterior angles slightly produced
and obtuse, the posterior angles acute, the dise broadly, shallowly, transversely impressed behind, the base
shallowly emarginate before the scutellum, the basal fovese deep, the surface somewhat coarsely, closely,
and subconfluently punctured, the punctures not quite so closely placed on the disc; elytra narrowing
from the base, with rows of comparatively coarse punctures, the terminal spines short; legs closely and
coarsely, the tibiz rough and rugosely, punctured, brownish-bronze, the basal halves of the tibiee more or
less ferruginous ; posterior tibie slightly sinuous, and unarmed within (scarcely differing from those of the

ACROPTERON. 257

female), and the femora fringed with short hair beneath, in the male; metasternum rather closely and
somewhat coarsely, the first three ventral segments comparatively coarsely and rather closely, the other
segments more finely, punctured.

Length 9-11 millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui, David (Champion).

Many examples. This species is not very nearly allied to any other described here ; it
may be known by its rather dull brownish-bronze colour, coarsely and subconfluently
punctured thorax, the disc of which is only feebly impressed behind, the compara-
tively coarsely punctured elytra, and the simple posterior tibize in the male; an allied
form is found at Rio Janeiro.

10. Acropteron levipes.

Greenish-bronze, shining. Head rather coarsely, irregularly, and not very closely punctured, the frontal
excavation moderately deep; antenne piceous, the basal joint and the extreme apex red; prothorax with
very prominent produced angles, the anterior ones narrowly rounded, the hind ones acute, the disc feebly
transversely impressed immediately before the base, the basal foveee moderately deep, the base almost
straight in the middle, the surface closely and rather coarsely, a longitudinal space on the centre of the
disc more sparingly, punctured; elytra narrowing from the base, with rows of comparatively coarse and
deep punctures, the terminal spines short; legs smooth, very sparingly punctured.

Length 94 millim. (@.)

Hab. Nicaraava, Chontales (Belt).

One example. A. devipes will be known amongst its allies by the closely punctured
thorax, the angles of which are all very prominent, the comparatively very smooth legs,
and other characters given above; it is not very nearly allied to any of the other species
noticed here; the male still remains to be discovered.

11. Acropteron rugipes.

Rather broad, dark reddish-brown, with a slight bronzy tint, rather dull. Head including the vertex coarsely
and confluently punctured, the epistoma more sparingly so, the vertex obsoletely impressed in the middle,
the frontal excavation moderately deep; antennwe brownish-piceous ; prothorax broad, the sides almost
straight, the anterior angles prominent but obtuse, the posterior angles broad and subacutely produced, the
disc without basal depression, the base shallowly emarginate before the scutellum, the basal fovez short
and not extending upwards, the surface very coarsely, closely, and subequally punctured; elytra nar-
rowing very gradually from the base, with rows of rather shallow coarsish punctures, the terminal
spines short ; legs stout, reddish-brown, the femora smooth and sparingly punctured, the tibiee rough and
coarsely rugulosely punctured ; beneath shining, comparatively coarsely punctured.

Length 11 millim. (.)
Hab. Nicaraeua, Chontales (Belt).

One example. A. rugipes will be identified by the very coarsely and closely pune
tured thorax, which is without basal depression ; the coarsely roughened tibiz ; and the
rather dull reddish-brown colour, only slightly tinged with eneous. From A. agriloides
this species will be readily known by the thorax being more quadrate in form, broader,
much more coarsely and not quite so closely punctured, and the anterior angles less
rounded; the still more roughened tibie, comparatively shorter form, and duller and
less metallic colour. Like the preceding species, the female only is known.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1886. 2LL

258 HETEROMERA.

12. Acropteron brunneum.
Acropteron brunneum, Makl. Act. Fenn. vii. p. 119°.

Hab. Costa Rica (Wagner ').—Braziu}.

Iam unable to identify this species among the large number of Central-American
Acroptera before me; oddly enough, we have not received a single representative of the
genus from Costa Rica. It seems to me very improbable that the insects from Brazil
and Costa Rica really represent one and the same species.

Group ISCHYOMIIDES.

This new group is proposed for a single species, Ischyomius singularis, an insect
inhabiting Colombia, including the State of Panama. Jschyomius differs in so many
important points of structure from the “ Cnodalonides,” as defined by Lacordaire, that
I find it impossible to include it in that group. Though the definition of the
“Cnodalonides” now requires extensive modification to include the genera since
described, still we do not find the general structure at all agreeing with that of
Ischyomius. Certain “ Cnodalonides,” Platycrepis, have the two or three penultimate
joints of the tarsi laterally compressed and strongly bilobed somewhat as in /schyomius,
but the other structural characters differ greatly. The “ Ischyomiides” may very
possibly have to be removed eventually from the family “'Tenebrionide.”

I do not detect any external sexual difference in Jschyomius; the sexual organs are
formed much as usual (not in the least resembling Acropteron):—in the female, a
flattened horizontal process (which may possibly serve the function of an ovipositor), on
either side of which and close to the apex is a rather long style; in the male, a long,
narrow, pointed sheath.

ISCHYOMIUS.
Ischyomius, Chevrolat, Mitth. des Minch. ent. Ver. ii. p. 98 (1878).

This genus was established upon a very remarkable insect from Colombia, and stated
by its describer to be near Acropteron. The narrow elongate form, the slender antenne,
the widely separated eyes, and the mucronate apices of the elytra bear, it is true, a
superficial resemblance to Acropteron, but there the affinity ends, the structure of the
oral organs, anterior coxal cavities, tarsi, &c. being wholly different.

The following is Chevrolat’s description :—

“ Ischyomius. Charact. generis :—Corpus elongatum, planum, apice emarginatum bidentatum. Caput latum,
apice rotundatum, transversim posticeque sulcatum. Clypeus angustus transversalis. Labrum subquad-
ratum emarginatum, mandibule late, plane, arcuate, acute. Ultimo articulo palporum maxillarum
elongato-acuminato. Oculilaterales rotundati. Antenne submoniliformes, undecim-articulate, prothoraci
eequilonge, articulo tertio longiore, 4° paullulum breviore, ultimo ovali. Prothorax subquadratus, planus,

lateribus reflexis, postice paullulum attenuatis, angulis quatuor rectis, acutis. Scutellum rotundatum.
Elytra basi truncata, ad apicem sensim alternata, subparallela, in angulo marginis spinosa, intus emar-

ISCHYOMIUS. 259

ginata. Pedes breves, femoribus modice incrassatis, planiusculis, tibiis rectis, tarsis coarctatis latis, primo
articulo posticorum longo, conico. Coxe oblonge. Abdomen quinque segmentis subequalibus, ultimo
dimidio longiore. Prope G. Acropteron.”

To this I would add :—

Mentum exceedingly wide and short, more than twice as broad as long, widest in front, the anterior angles
rounded, the base and apex very broadly truncate, the sides slightly constricted before the base; ligula
very broad, emarginate; labial palpi widely separated at the base, the last joint small, short; outer lobe
of the maxille comparatively very long, narrowing and acuminate at the apex, the inner lobe armed with
a distinct tooth within; last joint of the maxillary palpi rather long, feebly subsecuriform (scarcely
elongate acuminate); mandibles greatly developed, strongly exserted, visible from above, pointed at the
apex, the space within armed with three or four short teeth ; labrum large and broad, separated by a distinct
membranous clypeus; first joint of the antenne long, as long as the third, and stout; antennary orbits
very feebly swollen; scutellum very broad, short, strongly transverse, broadly rounded behind; tarsi
thickly clothed with silky hair beneath, laterally compressed, the outer apical angle of joints 2-4 of the
front and middle pairs and of joints 2 and 3 of the posterior pair produced into a long lobe (the penulti-
mate joint of all most distinctly and more rounded at the apex, and produced beneath the last joint
which is inserted at the extreme base of the preceding one); tibial spurs strong; prosternum narrow,
horizontal, smooth, the apex produced and rounded, strongly margined within ; anterior coxal cavities
widely open behind ; intermediate coxe narrowly separated, with distinct trochantin ; third and fourth
ventral segments without distinct coriaceous hind margin.

The single known species is found by beating the withered hanging leaves of culti-
vated Musacez, never about timber; I met with it plentifully in various parts of

Chiriqui.

1. Ischyomius singularis. (Tab. XI. figg. 17; 17a, labium; 176, maxilla
and maxillary palpus; 17 c, mandible from above.)
Ischyomius singularis, Chevr. Mitth. des Miinch. ent. Ver. ii. p. 98 ‘

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).—Co.omaia (coll. Brit. Mus.),
Honda 4, Bogota.

This insect will be readily identified from our figure and Chevrolat’s brief descrip-
tion :—“ Flavus vel piceus, supra crebre fortiterque punctatus ; oculis nigris; prothorace
ad basin extus profunde foveato ; corpore infra pedibusque flavo-pallidis. Long. 73-93,
lat. 24-3 millim.”

Group APOCRYPHIDES.

This group, the Group I. of the Tribe “‘ Hélopides” of Lacordaire, is represented in
Central America by a single genus nearly allied to Apocrypha (= Compsomorphus, Sol.) ;
the latter contains a few small species from North America and Chili, and possibly also
one or two undescribed forms from Western Australia. The species of both genera
are known by their more or less globose unmargined thorax, convex oval elytra, &c.
The species of Apocrypha appear to be rarely met with; they are said to be found on
the ground ; doubtless Pseudapocrypha is of similar habits.

2LL2

260 HETEROMERA.

PSEUDAPOCRY PHA.

Mentum trapezoidal, slightly rounded at the sides, longitudinally raised in the middle, the front angles
subacute; ligula strongly exserted ; last joint of the labial palpi rather long, ovate, that of the maxillary
pair very broad, strongly securiform ; inner lobe of the maxilla armed with a slender long curved tooth
at the apex; mandibles cleft at the apex; antenne long, very stout from the base, gradually widening
outwardly, joint 1 stout, 2 short, distinctly narrower than 1, 3 twice as long as 2, joints 4-6 subequal,
8-10 nearly as broad as long, joint 11 longer and rather broader than 10, strongly and obliquely
acuminate at the apex; labrum prominent; head rather long, strongly exserted, the epistoma truncate
in front and not distinctly defined, the sides of the front very oblique, the antennary orbits slightly
swollen ; eyes small, coarsely faceted, above rounded, below obliquely and narrowly produced beneath the
base of the antenn ; prothorax subglobose, the angles obsolete, the sides confounded with the flanks and
not margined, the base and apex truncate, the base shallowly margined ; scutellum moderately large,
triangular ; elytra ovate, very convex ; legs rather long; femora incrassate outwardly ; tibie with long
and rather stout spurs (those of the anterior pair still stouter), the two hinder pairs with a slender and
rather long tooth (sometimes broken off) at the outer apical angle; tarsi clothed with rather long bristly
hair beneath, the tirst joint of the anterior pair long and stout (possibly a sexual character), the first joint
of the posterior pair long, much longer than the following two joints united; prosternum broad, slightly
raised and swollen on each side, the apex vertical; anterior coxe strongly exserted; middle coxe without
distinct trochantin ; posterior coxee very widely separated; metasternum very short; intercoxal process
very broad, rounded in front; epipleure narrow, ending a little beyond the last ventral suture; third and
fourth ventral segments with distinct coriaceous hind margin ; body hairy, apterous.

This genus will be at once known from Apocrypha, its nearest and only known ally,
by the very strong tibial spurs; the very stout antenne, with the last joint obliquely
acuminate; the femora more strongly incrassate; the prosternum broader, &c. The
single known species is much larger in size than Apocrypha. P. lacordairii is doubtless
the undescribed insect from Guatemala mentioned by Lacordaire, Gen. Col. v. p. 433,
nota. Lacordaire while noting the affinity of our insect with Apocrypha, suggests that
it may be allied to Lena; there can be no doubt, however, that its true affinities are
with Apocrypha. Jam unable to detect any external sexual character; in the three
specimens before me the first joint of the anterior tarsi is similarly formed.

1. Pseudapocrypha lacordairii. (Tab. XI. figg. 18; 18a, labium; 184,
maxilla and maxillary palpus.)
Apocrypha (?) sp., Lacord. Gen. Col. v. p. 433, nota’.

Elongate, very convex, piceous-black, shining, the entire surface somewhat thickly clothed with a very fine
short appressed pubescence and long erect hairs. Head exceedingly coarsely and not very closely punc-
tured, the punctures more or less longitudinal in form and here and there confluent, the oral organs
(except the tips of the mandibles which are black) and the antenne sometimes more or less ferruginous ;
prothorax longer than broad, widest about the middle, strongly longitudinally convex, with widely
scattered rather coarse impressions, each impression bearing a long erect hair, a longitudinal space on the
disc impunctate ; elytra sculptured like the prothorax, the impressions widely scattered and finer on the
disc but becoming very coarse and much closer together outwardly, a row of still coarser punctures
within the lateral margin ; beneath exceedingly finely and closely punctured, with widely scattered coarse
impressions ; legs dark ferruginous, the femora piceous outwardly.

Length 7-84 millim.

Hab. Mexico, Chiapas (Sallé); Guaremata ! (coll. Brit. Mus.).

Four examples.

SAZICHES. 261

Group MISOLAMPIDES.

This group, originally defined by the Marquis de Bréme, consists of Group II. of the
Tribe “ Hélopides” of Lacordaire. The New-World genera of ‘ Misolampides” are
few in number and are confined to South and Central America; the group is not
represented in America north of Mexico. The Central-American species hitherto
placed in Spherotus I have thought best to eliminate and place in other genera.

The genus Mitys, placed by me in the “Tenebrionides” (ante p. 97), must also be
included in this group. Not having at that time critically examined the genera of
“ Misolampides” and not having detected any resemblance between the typical species
of Spherotus and the Mexican S. politus, de Bréme, with which I. levis is no doubt
identical, I was induced to include Mitys with the “‘Tenebrionides.” ‘There can be no
doubt, however, that this genus belongs to the present group, and though superficially
resembling @atus, and other genera of ‘‘Tenebrionides,” its place is with Spherotus
and its allies. Mitys will be known from Spherotus, as understood here, by the larger
head with more greatly developed epistoma, the strong claw to the maxille, the broader
scutellum, the elytra never with rows of coarse rounded impressions, smooth, or at most
with rows of very minute punctures on the disc, the broader and more produced pro-
sternum, &c.; and from Oxidates (with which it agrees in the structure of the maxille,
&c.) by its still more developed epistoma, relatively longer thorax, differently sculptured
elytra, &c. In general facies Mitys is not unlike Eleodes; it does not bear any
resemblance to Spherotus and allies; the Helopiform structure of the antenne, how-
ever, indicates its proper affinity. . (Spherotus) politus, de Bréme, is no doubt the
insect referred to by Lacordaire (Gen. Col. v. p. 447, nota) as possibly belonging to the
Temperate South-American genus Heliophygus, with which, however, it cannot be
included.

Hegemona, included by Lacordaire in his Group III. “ Hélopides vrais,” seems to me
to be better placed here; Allard, in his recent monograph of this genus, places it in
the “ Misolampides.”

The different species are usually found by beating dead branches, especially of
fallen decaying trees, in or near the forest ; some are found in and about new clearings,

others in very dark humid places.

SAZICHES.

Mentum trapezoidal, strongly deflexed at the sides, the angles not prominent ; ligula strongly exserted, rounded
dn front ; last joint of the maxillary palpi broad, securiform ; inner lobe of the maxille armed with coarse
sete only ; mandibles truncate at the apex ; anteune long, slender, reaching far beyond the base of the
prothorax, joint 3 much longer than 4, joints 4-6 subequal, 7-10 long, decreasing slightly in length,
distinctly widening outwardly, joint 11 longer than 10, oblong ovate, the five outer joints (as usual)
closely punctured and pubescent ; head comparatively broad and large, the epistoma greatly developed and
separated by a deeply impressed fine semicircular groove; eyes transverse, rather convex; prothorax
transverse, somewhat convex, narrowly but distinctly margined on all sides; scutellum large, triangular ;
elytra very strongly transversely gibbous, raised greatly above the level of the prothorax, the apices

262 HETEROMERA.

subcaudate, the humeri distinct, striate on the disc, with nine rows of very coarse rounded impressions ;
epipleure rather broadly extending to the apex; prosternum horizontal, rather broad, its anterior face
declivous, the apex acuminately produced ; mesosternum moderately deeply excavate ; metasternum short,
longitudinally raised and convex in the centre between the middle coxe ; intercoxal process long, sub-
parallel, comparatively not very broad (narrower than in the allied genera), narrowly margined, rounded in
front ; tarsi long and stout, thickly clothed with hair beneath, laterally compressed, similar in both seXeS,
the penultimate joints of the two front pairs strongly produced at their outer apices (these joints thus
appearing bilobed), the first joint of the posterior pair long, the length of the two following Joints united,
and at least three fourths of the length of the apical one; tibie very little curved, the posterior pair
almost straight in both sexes, the inner apices slightly thickened in the male ; body apterous. |

This genus includes a single species from Guatemala. Saziches in its gibbous elytra
with rows of very coarse rounded impressions approaches Spherotus, Oxidates, and
Isaminas ; it will be readily known from these genera by the long first joint of the
posterior tarsi, the bilobed penultimate joints of the anterior and middle tarsi, the
slender antennz, the large scutellum, the longer and narrower intercoxal process, &c.;
and also from the two first named by the straighter tibie.

The sexual organs in Saziches differ considerably from those of the preceding
genera I have yet examined, though formed in both sexes almost exactly as in Hege-
mona :—in the male the sheath of the cedeagus at about the middle is abruptly
curved upwards, the apica] portion somewhat produced and subhorizontal, and the apex
itself truncate, the intromittent organ being protruded from beneath but far from the
apex; the sheath is protruded from the centre of what appears to be a completely
hidden sixth segment, the latter when extended is found to consist of two long and
broad valvular pieces which are corneous on their external sides, and above and below
within densely clothed with matted fulvous spongy hair; in the female the ovipositor
is formed of two broad vertical plates placed close together and acuminate at the apex
and very similar to that obtaining in the same sex of Acropteron. In the male of
Lsaminas the sheath is simply and gradually curved and narrowing to the apex, and
of the ordinary character; the female of the same genus, and also of Ovwidates (at
least of O. planicollis), has the usual horizontal flattened process with a short style
on each side near the apex. We give a figure (Tab. XI. fig. 22 c) of the cedeagus
of the male of S. swbcaudatus, viewed from beneath.

1. Saziches subcaudatus. (Tab. XI. figg. 22,3; 22a, labium; 22 0, maxilla
and maxillary palpus; 22 c, cedeagus.)

Black, slightly shining. Head very minutely, sparingly, and almost imperceptibly punctured, the intraocular
space broadly and shallowly impressed in the middle; prothorax transverse, widest in the middle, the
sides slightly rounded, scarcely narrower at the apex than at the base, the hind angles subrectangular,
the anterior angles rounded but not broadly so, the disc sometimes with a rounded fovea on each side
before the middle, shallowly transversely impressed before the base, and with indications of a fine shallow
obsolete central groove, smooth, almost impunctate; scutellum shining, usually transversely impressed
behind ; elytra a little wider than the prothorax at the base, rapidly widening to the middle, rounded at
the sides, strongly gibbous and raised greatly above the level of the prothorax (more so than in the allied
genera), the apices produced, slightly divergent, and swollen, with rows of moderately deep coarse rounded

SAZICHES.—OXIDATES. 263

impressions, the impressions on the disc placed upon narrow impressed lines (these lines or strie are well
defined and deeply impressed outwardly, though shallow towards the suture, and extend only for about
one third of the length of the elytra and are quite obsolete from the basal and apical portions); beneath
shining, very shallowly, finely, and sparingly punctured.
Length 113-15 millim. (¢ 9.)
Hab. Guatemaua (coll. Brit. and Stuttgart Museums), Senahu and San Juan in Vera
Paz 2000 to 3000 feet (Champion).

Several examples.
OXIDATES.
Spherotus (8rd division), de Bréme, Revue Zool. 1842, p. 109; Lacordaire, Gen. Col. v. p. 447,
nota (nec Kirby).

Very near Spherotus and differing as follows :—Mentum strongly deflexed at the
sides, about as broad as long ; inner lobe of the maxille armed with a long curved claw
at the apex * (in Spherotus with coarse sete only); epistoma larger and separated from
the front by a fine impressed line (in Sphwrotus by a deep groove); antenne slender,
the penultimate joints narrower at the base; prothorax never longer than broad, much
less convex, usually moderately transversely so (never globose or longitudinally convex),
more evidently margined, in most of the species very strongly so at the base; scutellum
small; elytra with rows of more or less coarse rounded impressions ; prosternum much
broader (except in O. puncticeps), more or less strongly and horizontally produced, often
deeply longitudinally grooved on each side (declivous behind and less strongly produced
in Spherotus); mesosternum usually very feebly excavate in front, rarely V-shaped
(O. planicollis); epipleuree extending to the last ventral suture, thence in some species
very narrowly continued to the apex; tarsi not so stout, the first joint of the posterior
pair short as in Spherotus; tibie slightly curved and sinuous in both sexes, more
distinctly so in the male; the rest as in Spherotus.

This genus contains various Mexican species which I have thought advisable to
separate from Spherotus; it includes the three species placed by the Marquis de Bréme
in his third division of that genus, and some others described here. Lacordaire (op. cit.)
reproduces de Bréme’s divisions and remarks that some of the species placed by that author
in Spherotus probably belong to other genera. Oaidates will be known from Spherotus
by the above-mentioned characters, but more especially by the strong claw to the
maxille and the differently formed prosternum. Sphwrotus as understood here will
contain only the first division of the genus as defined by de Bréme, and of which the
South-American S. curvipes, Kirby, and S. cribratus, de Bréme, may be taken as the
types. The second division of Spherotus, originally containing only one species,
S. politus, de Bréme, from Mexico, is, as already noted, here separated and included
under the genus Mitys.

* De Bréme (op. cit. p. 107), in amending Kirby’s definition of Spherotus (Trans. Linn. Soc. xii. p. 416),
states that the inner lobe is armed with a very small claw. I fail tosee this in the typical species (S. curvipes
and S. cribratus); this character is not mentioned by Lacordaire.

264 HETEROMERA.

* Prosternum horizontal, broadly and strongly produced, the apex raised and
received by the moderately concave V-shaped mesosternum.

1. Oxidates planicollis. (Tab. XI. figg. 19,6; 194, labium; 194, maxilla

and maxillary palpus; 19c, cedeagus.

Black, with a slight bronzy tint, moderately shining. Head very sparingly, finely, and shallowly punctured ;
antenne long and slender; prothorax transverse, comparatively very broad, rounded at the sides, if any-
thing rather more narrowed anteriorly than at the base, the sides in some examples constricted immediately
before the base and with the hind angles acute, and in others less rounded and narrowing more obliquely
before and behind the middle, the anterior angles broadly and obtusely rounded, the base distinctly but
comparatively not very strongly margined, the disc somewhat flattened and often with a shallow rounded
fovea on each side a little before the middle, the surface exceedingly finely, shallowly, and rather closely
punctured ; scutellum comparatively large and distinct ; elytra abruptly constricted behind and with the
apex rather broadly produced, with rows of coarse scattered rounded impressions, the impressions finer
and shallower along the basal half of the suture ; beneath shining, almost smooth ; prosternum horizontal,
smooth, broadly and longitudinally excavate within, broadly and strongly produced, the apex rounded,
raised, and received by the moderately deeply excavate V-shaped mesosternum ; epipleure ending at the
last ventral suture ; intercoxal process very broad, narrowly margined anteriorly; legs black.

Length 11-14} millim. (¢ 9.)
Hab. Mexico, Misantla (Hége).

Found in abundance by Herr Hége at Misantla. This species will be at once known
from its allies by the flatter and broader thorax, the base of which is not so strongly
margined, and the differently formed pro- and mesosternum.

** Prosternum very broad, subhorizontal, the apex not raised ; mesosternum
broadly and very feebly excavate.

2. Oxidates gravidus.
Spherotus gravidus, de Bréme, Revue Zool. 1842, p. 109°.

Hab. Mexico ! (coll. Brit. Mus.), Cordova (Sadie).

In this species the numerous large and coarse though comparatively shallow impres-
sions on the elytra each bear a smaller impression in the centre.

3. Oxidates thoracicus.
Spherotus thoracicus, de Bréme, Revue Zool. 1842, p. 110°.
Hab. Mexico! (coll. Brit. Mus.), Tuxtla, Playa Vicente, Cordova (Sallé), Misantla
(Hoge).

Several specimens before me agree very fairly with the description, except that they
have the thorax very minutely and shallowly punctured instead of “lisse”; I notice,
however, the punctuation of the head and thorax varies in intensity, and consequently
have little doubt our insects are referable to de Bréme’s species. The thorax is

OXIDATES, 265

said to be “a& peine convexe”: in our examples the thorax is moderately trans-

versely convex ; still compared with the typical species of Spherotus its shape might
be thus described.

4. Oxidates mexicanus.
Spherotus mexicanus, de Bréme, Revue Zool. 1842, p. 110°.

Hab. Mexico 1, Cordova (Sal/é).

In O. mexicanus the punctures of the elytra are much smaller and more widely
separated than in the other species of the genus.

5. Oxidates princeps. (Tab. XI. fig. 20, 3.)

Black, above tinged (the elytra especially) with greenish-bronze, slightly shining. Head finely, shallowly, and
somewhat closely punctured ; antenne long, slender ; prothorax about as long as broad, the sides slightly
rounded, about equally narrowed at the base and apex, feebly transversely convex, the anterior angles
broadly rounded, the base very strongly margined, the surface dull black, exceedingly finely and shallowly
and somewhat closely punctured, a row of coarser impressions in front of the basilar groove; scutellum
rather large and distinct ; elytra the width of the prothorax at the base, abruptly constricted behind and
with the apex somewhat broadly produced, with rows of coarse rounded impressions, the impressions
scarcely finer towards the suture and slightly tinged with metallic golden within, more shining than the
prothorax, of a dark greenish-bronze tint ; beneath shining, almost smooth ; prosternum very broad, sub-
horizontal, broadly produced, the apex rounded but not raised, smooth, and with a deep U-shaped mark
between the coxe ; mesosternum simple ; epipleurze extending to the last ventral suture, almost obsolete
beyond ; intercoxal process very broad, the anterior margin broadly raised; legs black ; the posterior
tibize clothed with short fulvous hair within in their apical third in the male.

Length 14 millim. (<.)

Hab. Mexico, Oaxaca (Hége).

One example. This species closely resembles O. thoracicus, but is considerably larger,
the thorax longer and not so strongly rounded at the sides, the elytra longer, &c.

6. Oxidates aurichalceus.

Golden-bronze, slightly shining. Head comparatively closely and very evidently, though finely, punctured ;
prothorax moderately transversely convex, nearly as long as broad, the sides rounded, constricted before
the base, and about equally narrowed at the base and apex, the anterior angles broadly rounded, the hind
angles subrectangular, the base very strongly margined, the surface very finely and closely punctured ;
elytra broader than the prothorax at the base, moderately rounded at the sides, comparatively somewhat
depressed on the basal half of the disc, with rows of coarse irregular more or less longitudinal impressions
and in the centre of each of which is a smaller impression, the interspaces finely and very shallowly punc-
tured ; beneath dark bronze, shining ; prosternum strongly produced, subhorizontal, the apex not raised :
legs black, finely, closely, and shallowly punctured.

Length 15 millim.

Hab. Mexico (Galeotti, in Brit. Mus.).

This distinct species is not very closely allied to any of the others here noticed; it
will be known by the characters given above. The single example in the National
collection is in a very mutilated condition, without antenne or abdomen.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1887. 2MM

266 HETEROMERA.

*** Prosternum narrower and acuminately produced, the apex slightly raised.

7. Oxidates puncticeps.

Bronze-black, rather dull. Head closely and comparatively coarsely punctured ; antenne long and slender ;
prothorax broader than long, feebly transversely convex, the sides rounded, constricted just before the
base, rather narrower in front than at the base, the hind angles subacute, the anterior angles broadly
rounded, the base strongly margined, the surface finely, closely, and very evidently punctured ; scutellum
small; elytra obliquely and abruptly narrowing behind, the apex not much produced, with rows of very
coarse rounded impressions, the impressions slightly tinged with metallic golden within and not finer
along the suture; beneath shining, very sparingly and finely punctured; prosternum comparatively
narrow, subhorizontal, subrugulose, grooved on each side within, strongly and acuminately produced, the
apex slightly raised ; mesosternum almost simple; epipleure reaching to the last ventral suture, almost
obsolete beyond; legs black.

Length 83 millim. (¢ 2.)

Hab. Muxico, Jalapa, Misantla (Hoge).

Two examples. This species differs from its allies in having the head comparatively
coarsely punctured, the elytra less abruptly narrowed behind and with the apex less
distinctly produced, the prosternum narrower and acuminately produced.

ISAMINAS.
Isaminas, F. Bates in litt.

Mentum and palpi as in Oxidates; inner lobe of the maxille with a strong curved claw at the apex (as in
Oxidates); mandibles truncate at the apex; antenne comparatively short, longer in the male, the third
joint long, much longer than the fourth (in Oxidates but little longer), joints 9 and 10 about as broad as
long in the male, more or less transverse in the female; epistoma large (less transverse than in Oxidates),
sharply defined (at the sides by a deeper groove); prothorax very strongly transverse, nearly twice as
broad as long, comparatively rather flat, very distinctly margined ; scutellum small; elytra short, trans-
versely gibbous, raised considerably above the level of the prothorax, the apex produced, with rows of
coarse rounded impressions (as in Oxidates and Spherotus); prosternum very broad, horizontal, longitu-
dinally grooved on each side within, the central part convex, very broadly produced, parallel or acuminate,
the apex received by the more or less deeply excavate mesosternum ; metasternum very short, deeply
transversely impressed ; intercoxal process broad, impressed on each side within; epipleure distinctly
and rather broadly extending to the apex in I. gibbipennis, more or less confounded with the elytra and
defined towards the base only in JI. brevicollis; first joint of the posterior tarsi short; tibie almost
straight in both sexes; body apterous; the rest as in Owidates and Spherotus.

This genus includes two closely allied Central-American species. JIsaminas though
unquestionably very closely allied to Oxidates will be readily known from that genus
by the exceedingly broad and short thorax, the much shorter and differently formed
antenne (the third joint distinctly longer compared with the fourth), the still broader
prosternum, the straighter tibiee, &c. These insects are found by beating the withered
still-attached leaves of the decaying branches of trees in dark places in the dense
humid forest.

ISAMINAS.—HEGEMONA. 267

1. Isaminas gibbipennis, (Tab. XI. fig. 21,2.)
Isaminas gibbipennis, F. Bates in litt.

Black, with a very faint bronzy tinge, slightly shining. Head sparingly and finely punctured, often with two
shallow impressions between the eyes; prothorax with the sides broadly rounded anteriorly, almost
straight (sometimes slightly sinuous and irregular) from the middle to the base, the hind angles sub-
rectangular, the base rather strongly margined, the dise with a distinct central groove and usually with a
rounded fovea on each side about the middle, the surface almost impunctate; elytra with rows of coarse
rounded impressions; beneath smooth, shining; prosternum very broad, parallel, strongly produced,
deeply longitudinally grooved on each side within, the central convex part slightly extended and
received by the concave mesosternum ; epipleure distinctly separated from the elytra and rather broadly
extended to the apex ; legs black.

Length 9-114 millim.; breadth 6-7 millim. (¢ 9.)

Hab. Nicaraaua (Sallé, coll. F. Bates), Chontales (Belt, Janson); Costa Rica
(Sailé).

Numerous examples.

2. Isaminas brevicollis.

Closely allied to I. gibbipennis and only differing as follows :—the antenne in the female not quite so short
and with the ninth and tenth joints less transverse; the prosternum less parallel, broadly and acuminately
produced and-received by the deeply excavate V-shaped. mesosternum ; epipleure confounded with the
flanks of the elytra and only defined therefrom at the base.

Length 83-11 millim. (¢ 9.)

Hab. Guatemata, Senahu, San Juan in Vera Paz, Sinanja (Champion).

Many examples. This insect, though extremely similar to 1. gibbipennis, differs con-
stantly in the structure of the prosternum and elytral epipleure ; I am obliged to treat
it as a distinct species. In Guatemala it appears to be confined to the Atlantic slope,
to the vicinity of the Polochic valley and the humid forest-clad mountain-range north
thereof; it is found at an elevation of from 1500 to 3000 feet.

HEGEMONA.

Hegemona, Castelnau, Hist. Nat. Ins. Col. ii. p. 280 (1850); Lacordaire, Gen. Col. v. p. 448 ;
Allard, Monogr. in Mittheil. der schweiz. ent. Ges. v. pp. 60 & 251 (1880).

This is probably the most characteristic genus of Central-American Tenebrio-
nide. Seven species have been described, six from Central America and one from
Colombia; we have now to record seventeen, no less than eleven of which appear to be
new. ‘Two only were described previous to the publication of M. Allard’s monograph
of the genus; Lacordaire (op. cit. p. 449, nota), however, in addition to the two former
briefly notices two other species from Mexico. Besides the large number of specimens
before me, I have examined many others in the British and Stuttgart Museums, and
also in the collection of M. Réné Oberthir. ‘The species are all of large size, and are
the giants of the section Helopide. The males usually have the anterior tarsi more
dilated than the females, the thorax rather longer, &c. ; the females in some few species

2 MM 2

268 HETEROMERA.

have the fifth elytral interstice (very rarely the first also) produced into an angular or
rounded prominence at the apex, this character in one species (H. zunilensis) being also
present in the male. The sexual organs of both sexes are strongly developed, and very
easily seen in this genus; they are formed very much as in Saziches (anté, p. 262) : in the
male (cf. Tab. XI. fig. 22 c) the cedeagus is still longer and broader, horizontal or recurved
upwards towards the apex, and the apex itself rather broadly truncate or shovel-shaped ;
in the female the flattened vertical plates, forming what is doubtless an ovipositor, are
still longer and broader. This structure scarcely varies in the fifteen species before
me, at least one sex of each of which I have examined. The different species are
of the same habits as the preceding genera of this group, but are usually found in
more open places in the forest.

The Central-American species may be identified by the following table, which is
chiefly based upon the sculpture, shape, &c. of the elytra :—

Interstices more or less convex.
Strie broad, coarsely crenate-punctate ; the interstices broad, moderately
convex, finely punctured, usually alternately green and cupreous, but
little shining se ee se 8 ee ee he he 6resplendens.
Striz narrower and more finely punctured.
Elytra comparatively long, often more or less gibbous.
Almost unicolorous, rather dull bronzy-cupreous ; the fifth inter-
stice (? elongatus) not produced at the apex in the female. . elongatus,
hondurensis.
Almost unicolorous, duller darker bronze; the fifth interstice pro-
duced into a strong tooth at the apex in the female . . . bdicaudatus,
retrodentatus.
The interstices alternately metallic green and cupreous; the fifth
not produced.
Very shining, long, strongly laterally compressed, the inter-
stices feebly convex. . . . + + + © compressus.
Duller, shorter, less compressed laterally, the interstices
more convex; the prothorax much smoother and
darker in tint . - + « « « Jineatus.
Almost black, broad, somewhat depressed on : the disc soe 6 . niger.
Greenish-bronze, moderately long, strongly laterally compressed ;
the fifth interstice produced into a short rounded prominence

at the apex in both sexes . . . - zunilensis.
Brownish-bronze, narrow and subparallel, strongly laterally 0 com-
pressed ; the fifth interstice not produced. . . . . . angustatus.

Elytra broader and shorter, globose-ovate.
Bright bronze, the prothorax greenish ; the sutural and seventh
interstices slightly raised posteriorly and confluent at the
apex and together a little produced at the sutural angle . . chiriquensis.

HEGEMONA. 269

Dark blue, the prothorax brilliant bluish-violet; the first and
fifth interstices produced and separately dentiform at the

APEX. 6 ew we we we ee ee ew we ew ew 6 Surcillatus.
Strize with coarse longitudinal impressions, which are here and there confluent.

Elytra moderately long, gibbous.

Very dark bluish-bronze, rather dull, narrow, strongly laterally
compressed ; the interstices somewhat strongly convex, the

fifth not produced . . . 1 1. ww we ee ww we) «meuicanus.
Very dark bluish-bronze, more ovate, less compressed laterally ;
the interstices flatter, the second to the ninth confluent just
before the apex and together produced into a short rounded

lateral prominence in the female . . . . - + 6 + guatemalensis.
Interstices flat on the disc; the elytra globose-ovate, very bright bronze . oe costaricensis.
Interstices strongly angularly raised ; the elytra broad, globose-ovate, very bright

bronze.
Strize coarsely and irregularly crenate-punctate ; the interstices transversely
or obliquely wrinkled, much interrupted, and very irregular posteriorly . interruptus.
Striz finely punctured; the interstices more regular, and less interrupted
posteriorly . 2. 1 1 1 1 we ew ew we we eh ww we ww e CSfilibuster.

1. Hegemona resplendens.

Hegemona resplendens, Cast. Hist. Nat. Ins. Col. ii. p. 2307; Allard, Mittheil. der schweiz. ent.
Ges. v. pp. 60, 251’.

Eucamptus iridis, Hopf. De}. Cat. 3rd edit. p. 230°.

Eusarca iridipennis, Chevy. loc. cit.*

Hab. Mexico!%4 (coll. F. Bates, Brit. Mus.), Yucatan (coll. Oberthiir), Cordova ?
(Sallé), Jalapa (Hoge).

This fine insect is apparently not uncommon in Mexico.

2. Hegemona elongatus.
Hegemona elongatus, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 61, 2531.

Hab. Mexico ! (coll. Oberthiir, ex coll. Mniszech), Yucatan (coll. Oberthiir).

M. Réné Oberthiir has kindly lent me the type and a second specimen (both males)
of this species. We have not yet found this insect in any of the large collections sent
to us from Mexico.

3. Hegemona hondurensis.

Bronze-black, rather dull, the elytra more shining. Head very finely and shallowly punctured, the epistoma
separated by a deep groove; prothorax subquadrate, about as long as broad in the male, shorter in the
female, narrowing gradually from the base, the sides very little rounded, almost straight, the hind angles
subrectangular, the anterior angles strongly produced in front and narrowly rounded, the surface very
finely, shallowly, and somewhat closely punctured ; elytra long, ovate, slightly compressed laterally, rather

270 HETEROMERA.

wider than the prothorax at the base, strongly gibbous, the strie rather broad, shallowly but very distinctly
punctured on the disc, more coarsely so towards the sides, of a rather dull bronzy-cupreous tint, the inter-
stices moderately. convex, smoath, the alternate.ones sometimes faintly tinged with green, the apices very
slightly produced ; beneath more shining, very shallowly and finely punctured ; prosternum subhorizontal,
strongly produced, the apex raised and tuberculiform, broadly longitudinally raised on each side between

the cox, its anterior face deeply excavate within.
Length 183-19 millim.; breadth 8-9 millim. (d 2.)

Hab. Brirtse Honpuras, R. Hondo (Blancaneauz).

Three examples. This species is nearest allied to H. lineatus, from which it will be
known by the duller and almost unicolorous elytra, the less convex interstices, the more
coarsely punctured strie, the differently formed prosternum, the less excavate frontal
region of the head, &c.

4. Hegemona bicaudatus. (Tab. XI. fig. 24, 2.)

Bronze-black, rather dull. Head very shallowly, minutely, and almost imperceptibly punctured, the epistoma
separated by a fine narrow groove ; prothorax transverse, very little shorter in the female, about equally
narrowed at the base and apex, the sides somewhat rounded, broadly but very shallowly emarginate on each
side a little behind the middle, the hind angles obtuse, the anterior angles broadly rounded and prominent, the
surface very shallowly and finely but somewhat closely punctured ; elytra long, ovate, moderately gibbous,
the width of the prothorax at the base, rather longer in the male, a little wider at the base in the female,
the strie comparatively coarsely punctured, the interstices convex and almost impunctate, the apices rather
obtuse, rather more bronzy and a little brighter in tint than the head and prothorax ; the second, fifth, and
eighth interstices confluent at the apex and together produced into a broad, stout, conical tubercle (rounded
at the apex, distant from the suture, and projecting laterally far beyond the apex of the elytra) on each
elytron in the female, simple in the male; beneath more shining, almost smooth ; apical portion of the
prosternum produced into a stout, conical tubercle, the apex of which is rounded.

Length 21-22 millim.; breadth 9-9 millim. (3 9.)

Hab. Guatemata (Sallé, 2 ), Coban (Champion, ¢ ).

H. bicaudatus must be closely allied to H. retrodentatus, judging from the description
of that species, but as the Guatemalan insect differs in several points I prefer to
describe it.

H. retrodentatus is said to have the “ punctis striarum parvis,”’ a definition that cannot,
I think, be applied to H. bicaudatus.

Compared with H. resplendens, the present insect is longer and narrower.

5. Hegemona retrodentatus.
Hegemona retrodentatus, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 61, 253°.

Hab. Mexico, Chiapas (Chevrolat 1). |

This species is unknown to me; it is described as being allied to H. resplendens, and
to differ as follows :—The head and thorax impunctate; the thorax a little narrower,
more quadrate, the base slightly emarginate, the anterior angles more rounded and more
thickly margined; the elytra with similar deep grooves, but with the striz more finely

HEGEMONA. | 271

punctured and not crenulated, the fifth interstice forming a strong pointed tooth a little
before reaching the apex. In colour the head and thorax blackish-bronze, almost dull,
the elytra of a browner bronze, more shining, and with a very slight cupreous tint. The
specimen described is, no doubt, a female.

6. Hegemona compressus. (Tab. XII. fig. 1, ¢.)
Hegemona compressus, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 61, 254°.

Hab. Muxico! (coll. Oberthiir, ex coll. Mniszech) ; Guaremaua (coll. Stuttgart Mus.),
Lanquin (Champion).

The type of this species, kindly lent me by M. Réné Oberthiir, agrees well with a
male example captured by myself at Lanquin, and a second in the Stuttgart Museum.
In this species the prosternum is subhorizontal, strongly acuminately produced, and
longitudinally excavate on each side between the coxe. ‘The example from Lanquin is
figured.

7. Hegemona lineatus. (Tab. XI. fig. 23, ¢.)

Bronze-black, the head and prothorax rather dull, the elytra shining. Head very minutely, shallowly, and
sparingly punctured, broadly flattened and excavate anteriorly, the epistoma separated by a fine groove
(deeply impressed posteriorly, shallowly so at the sides) ; prothorax subquadrate, nearly as long as broad
in the male, shorter in the female, very gradually narrowing from the base, the sides almost straight, the
hind angles subrectangular, the anterior angles produced in front, rounded, and comparatively very promi-
nent, the disc sometimes with a very shallow fine impressed line, the surface finely, shallowly, and some-
what closely punctured; elytra long, rather narrow, compressed and but little rounded at the sides,
strongly gibbous, a little wider than the prothorax at the base, the stris very finely and shallowly punc-
tured on the disc, much more coarsely so at the sides, the interstices strongly convex (still more strongly so
posteriorly), almost smooth, alternately coloured metallic green and purplish-cupreous, and the first, second,
and fifth usually confluent at the apex in both sexes, the apices somewhat obtuse ; beneath bronze-black,
shining, almost smooth ; prosternum horizontal, strongly acuminately produced, smooth, its anterior face
concave within and declivous, the apex rounded off and not tuberculiform.

Length 17-20 millim.; breadth 7-9 millim. (d 2 .)

Hab. Brivish Honpvuras, Belize (Blancaneaux); Guatemata (Sallé, coll. Brit. and
Stuttgart Museums), San Juan and Panima in Vera Paz (Champion).

Numerous examples. This vividly-coloured insect is nearest allied to HH. compressus,
from which it may be known by its duller head and thorax, the latter much more shal-
lowly and finely punctured, the elytra rather duller and shorter and less compressed at
the sides, the interstices much more convex, the prosternum smoother, &c. The known
localities for this species are all on the Atlantic slope.

8. Hegemona niger. (Tab. XII. fig. 2, 4.)

Black, slightly shining. Head very finely and sparingly punctured, the epistoma comparatively short and
separated by a moderately deep groove, the vertex with a shallow semicircular impressed line extending
on each side anteriorly to the inner margin of the eye; prothorax transverse, the sides moderately
rounded and scarcely more narrowed anteriorly than at the base, the hind angles subrectangular, the

272 HETEROMERA.

anterior angles broadly rounded, the surface very shallowly, minutely, and sparingly punctured; elytra
very little wider than the prothorax at the base, broad and ovate, rather long, somewhat depressed on the
disc, the strie finely and very shallowly punctate, more distinctly so outwardly, the interstices punctured
like the prothorax, feebly convex towards the suture, strongly convex outwardly and at the apex, the first,
second, and fifth there confluent, the apices rather obtuse; beneath black, shining, almost smooth; pro-
sternum gradually rounded to the apex, the apex not tuberculiform.

Length 20 millim.; breadth 9-94 millim. (<.)

Hab. Guatemata, Santa Barbara and El Jicaro in Vera Paz (Champion).

This insect is allied to H. elongatus, but will be known by its smaller size, black
colour, the shorter epistoma separated by a shallower groove, the shorter, flatter, and
less convex elytra, the strize of which are not quite so finely punctate, the rounded-off
prosternum, &c. I only met with H. niger on the Chuacus range of mountains; the
two examples, both males, were captured in not very widely separated localities,

though on different sides of the range, one at an elevation of 5000 feet, the other at
2500 feet.

9. Hegemona zunilensis. (Tab. XI. fig. 26, 2.)

Bright bronze, with a slight greenish tint, shining. Head very shallowly and minutely punctured, the epistoma
separated by a narrow impressed line ; prothorax subquadrate, about as long as broad in the male, shorter
in the female, narrowing gradually from the base, the sides very slightly rounded, almost straight, the
hind angles rather obtuse, the anterior angles produced in front, rounded, and comparatively prominent, the
surface finely, closely, and distinctly punctured ; elytra slightly wider than the prothorax at the base, mode-
rately long, strongly gibbous, laterally compressed, but little rounded at the sides, the strive almost impunc-
tate towards the suture, comparatively finely punctured at the sides, the interstices moderately convex on
the basal half, feebly subangular posteriorly, almost smooth, the fifth raised into a short rounded promi-
nence just before the apex in both sexes ; beneath more shining, almost smooth ; prosternum horizontal,
strongly and acuminately produced, longitudinally raised on each side between the coxe, its anterior face
declivous and deeply excavate within.

Length 17-184 millim.; breadth 7-8 millim. (¢ 9.)

Hab. GuateMa.a, Cerro Zunil 4000 to 5000 feet (Champion).

This species was captured in plenty in new clearings in the dense forest above the
coffee-plantations of Las Nubes. I only met with the insect on the Pacific slope, and in
this one locality. A. zunilensis is remarkable on account of the fifth interstice of each
elytron being produced into a rounded prominence just before the apex in both sexes.

10. Hegemona angustatus. (Tab. XII. fig. 3, 3.)

Very dark greenish-bronze, shining. Head finely and sparingly, but quite distinctly, punctured, semicircularly
excavate anteriorly, the epistoma separated by a deeply impressed groove; prothorax subquadrate, about as
long as broad, narrowing very gradually from the base, the sides almost straight, the hind angles subrect-
angular, the anterior angles produced in front, rounded, and comparatively very prominent, the surface
very finely, shallowly, and somewhat closely punctured; elytra brownish-bronze, but little wider than
the prothorax at the base, long, subparallel, laterally compressed, very little wider in the middle than at
the base, moderately gibbous, rather broadly rounded at the apex, the strie finely and shallowly punctured
on the disc, more coarsely so at the sides, the interstices narrow, moderately convex on the basal half,

HEGEMONA. 273

strongly and equally so posteriorly, almost smooth; beneath more shining, almost smooth; prosternum
horizontal, strongly and acuminately produced, longitudinally raised on each side between the coxe, its
anterior face declivous and deeply excavate within.

Length 16-17 millim.; breadth 63-7 millim. (<¢.)

Hab. Guatemata, El Tumbador, Las Mercedes (Champion).

Five male examples, all from the coffee-region of the Pacific slope, and from an eleva-
tion of from 2500 to 3500 feet.

This is a small species, with narrow, subparallel, laterally compressed elytra; it
is not very nearly allied to any of the others noticed here; the female remains to be
discovered.

11. Hegemona chiriquensis. (Tab. XII. fig. 4, 2.)

Greenish-bronze, moderately shining. Head finely, shallowly, and sparingly punctured, the epistoma separated
by a deeply impressed groove, the intraocular space sometimes shallowly impressed in the middle, the
vertex usually with a shallow semicircular impressed line extending on each side anteriorly to the inner
margin of the eye; prothorax subquadrate, nearly as long as broad in the male, more transverse in the
female, the sides almost straight from the middle to the base, slightly narrowed anteriorly from just before
the apex, the anterior angles somewhat produced in front and rounded, the surface very minutely, shal-
lowly, and sparingly punctured; elytra more bronzy than the prothorax, broad, short, strongly gibbous,
distinctly wider than the prothorax at the base, rounded at the sides, regularly convex, the humeri rather
prominent, the strise opaque, rather finely punctate, and deeply impressed, the interstices uninterruptedly
convex throughout and almost impunctate, the sutural and the seventh slightly raised posteriorly and con-
fluent, and somewhat produced at the sutural angle in both sexes; beneath more shining, usually of a
greener tint than above, very finely and sparingly punctured; apex of the prosternum subtuberculiform.

Length 16-19 millim. ; breadth 73-10 millim. (¢ 2.)

Hab. Panama, Chiriqui (coll. Oberthiir), Volcan de Chiriqui 3000 to 4000 feet
(Champion).

Var. Rather duller; the elytra still more bronzy, the interstices more convex, the spaces between, including
the strie, rather broadly opaque throughout.

Hab. Panama, Bugaba 1000 feet (Champion).

This insect has the general facies of H. filibuster, from which it will be readily known
by its much smaller size, rather duller colour, the straighter-sided longer thorax, and
the interstices of the elytra regularly convex (not angularly raised) and uninterrupted
throughout ; it is allied also to H. allardi (Haag), Allard, from Colombia, but, judging
from the description, abundantly distinct. The specimens from Bugaba represent
a rather well-marked variety. I met with both forms rather plentifully.

12. Hegemona furcillatus.
Hegemona furcillatus, Allard, Mittheil. der schweiz. ent, Ges. v. pp. 61, 272 (¢)?.

Hab. Mexico 1.

Unknown to me. This insect is described as having the head and thorax of a very
brilliant bluish-violet colour ; the elytra dark blue; the interstices (in the female) very
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, June 1887. 2NN

274 HETEROMERA.

convex, the first prolonged at the apex into a pointed tooth, the fifth and seventh united
near the apex and together forming a second tocth, longer than the other and curved
within. It is stated to be nearest allied to, and possibly the female of, H. allardz, and
also to be of the general form of H. filibuster.

13. Hegemona mexicanus.

Bronze-black, with a slight bluish tint, rather dull, the elytra shining. Head very minutely and indistinctly
punctured, narrowly transversely excavate anteriorly, the groove separating the epistoma deeply impressed
behind, shallowly so at the sides; prothorax fully as long as broad in the male, a little shorter in the
female, narrowing very gradually from the base, the sides almost straight, the hind angles rather obtuse,
the anterior angles strongly produced in front and narrowly rounded, the surface finely, shallowly, and not
very closely punctured ; elytra more shining than the prothorax, of a very dark bluish-bronze colour,
moderately long, more or less grooved within at the base, rather wider than the prothorax, but little
rounded at the sides, subparallel, strongly gibbous, laterally compressed, with rows of more or less longi-
tudinal, exceedingly coarse impressions placed upon narrow strie (the punctures coarser towards the suture
and frequently confluent), the interstices rather narrow, smooth, somewhat strongly convex, and here and
there confluent on the disc, flatter, broader, and more regular at the sides, the fifth sometimes slightly raised
posteriorly ; beneath more shining, smooth; prosternum horizontal, strongly acuminately produced,
slightly excavate within between the coxa, its anterior face also excavate.

Length 163-20 millim. ; breadth 63-9 millim. (¢ 2.)
Hab. Mexico (coll. Brit. Mus., ¢ 2), Chinantla (Saldé).

Three examples. The description is taken from the male example in the National
Collection, the female specimen in the same collection and the individual from Chinantla
(possibly a small female) being in a more or less mutilated condition ; in the latter the
elytra are strongly and almost uninterruptedly grooved within at the base.

14. Hegemona guatemalensis. (Tab. XI. fig. 25, 2.)

Dark bronze, with a slight bluish tint, slightly shining. Head shining, very finely and shallowly punctured,
narrowly transversely excavate anteriorly, the groove separating the epistoma deeply impressed behind,
shallowly so at the sides; prothorax broader than long, very gradually narrowing from the base, the sides,
slightly rounded, the hind angles rather obtuse, the anterior angles somewhat produced in front and rather
broadly rounded, the surface very finely, closely, and distinctly punctured; elytra rather more
shining and a little wider than the prothorax, of a brighter, almost bluish, bronze-colour, the base not
margined within, moderately long, very little compressed at the sides, strongly gibbose ovate, almost -
regularly convex, with rows of coarse longitudinal impressions placed upon rather shallow strie (the punc-
tures here and there confluent, the parts of the strise between the impressions on the disc very shallow and
scarcely below the level of the interstices), the interstices broad, convex towards the sides, feebly so on the
disc, very minutely and sparingly punctured, the second to the ninth in the female confluent a little before
the apex and together (in a line with the fifth) forming a large rounded lateral protuberance; beneath
black, shining, smooth; prosternum horizontal, strongly acuminately produced, slightly excavate within
between the coxa, its anterior face also excavate.

Length 18 millim.; breadth 8 millim. ( 9.)

Hab. GuatTema.a (coll. Stuttgart Museum).
One example. This insect is closely allied to H. mexicanus; the female, however,

differs from the same sex of that species in having the prothorax shorter and broader,
with the anterior angles less prominent and more broadly rounded ; the head more

HEGEMONA. 275

shining ; the elytra more ovate, not grooved within at the base; the interstices broader
and less convex on the disc, the second to the ninth confluent just before the apex and
together produced into a broad rounded lateral prominence.

15. Hegemona, costaricensis. (Tab. XII. fig. 5, 2.)

Bronze, with a slight greenish tinge, very shining. Head very sparingly and minutely punctured, the epistoma
defined posteriorly by a not very deeply impressed groove, the vertex sometimes with a shallow longitu-
dinal impression, and the epistoma sometimes with a transverse one; prothorax subquadrate, as long as
broad in the male, shorter in the female, the sides straight from the middle to the base, slightly narrowed
in the apical third, the anterior angles rounded and produced in front, the surface very minutely, sparingly,
and shallowly punctured; elytra globose-ovate, very strongly gibbous, a little wider than the prothorax at
the base, the humeri not prominent, regularly punctate-striate, the interstices broad, flat on the disc from
the base to the apex, convex towards the sides only, almost impunctate, the apices slightly produced ;
beneath smooth, shining; apex of the prosternum subtuberculiform.

Length 183-19 millim.; breadth 8-9 millim. (6 9.)

Hab. Costa Rica (Sallé, Van Patten), Volcan de Irazu (Rogers).

This species will readily be known by the broad, flat interstices and regularly punc-
tate-striate elytra, the latter almost pear-shaped and raised considerably above the level
of the thorax.

16. Hegemona interruptus. (Tab. XII. fig. 6, 2.)

Bronze, with a very slight greenish tint, shining. Head very shallowly, finely, and sparingly punctured, the
groove separating the epistoma somewhat deeply impressed and subangularly extended in the middle behind,
very shallow laterally ; prothorax broad, transverse, the sides slightly rounded and about equally narrowed
at the base and apex, the anterior angles broadly rounded, the disc with a smooth narrow central line
which is slightly raised at the base, the surface punctured like the head; elytra short, broad, strongly
gibbous, rounded at the sides, the width of the prothorax at the base, deeply striate, the strie coarsely
erenate-punctate (the punctures here and there confluent), the interstices strongly angularly raised (as
in H. filebuster), greatly interrupted and more or less irregular beyond the middle and also at the sides,
transversely or obliquely wrinkled within, and impunctate, the apices slightly produced ; beneath more
shining, almost smooth ; apex of the prosternum produced into a rounded conical tubercle.

Length 19 millim.; breadth 10 millim. (2.)

Hab. Costa Rica (Van Patten).

One example. This insect is allied to H. filibuster, but differs in the very coarsely
punctured elytral striz, and the much more interrupted and irregular subangular

interstices.

17. Hegemona filibuster.
Eucamptus flibuster, Thoms. Revue Zool. 1856, p. 475, t. 23. f. 4°.
Hegemona flibuster, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 61, 254”.

Hab. ? Mexico (coll. Oberthiir, ex coll. Mniszech); British Honduras, Belize (Blan-
caneaux); GUATEMALA, Lanquin (Champion); Nicaracua (coll. Brit. Mus., F. Bates,
Sallé), Chontales (Belt, Janson); Costa Rica? ?.

Many examples. JH. filibuster will be at once known by its very broad form, the
2NN 2

276 HETEROMERA.

strongly angularly raised interstices, the finely punctured strie, and the very brilliant
bronzy upper surface; the numerous specimens before me vary in size from 20-243
millimetres. I have not seen this insect from Costa Rica.

DINOMUS.
Dinomus, de Bréme, Revue Zool. 1842, p. 118; Lacordaire, Gen. Col. v. p. 444.

This genus was established by the Marquis de Bréme upon a single species from
Mexico. Dinomus was unknown to Lacordaire, who merely reproduced the original
description; the genus is not represented in any of the large Mexican collections
before me.

1. Dinomus perforatus.
Dinomus perforatus, de Bréme, Rev. Zool. 1842, p. 114°.

Hab. Mexico}.

Group HELOPIDES.

This group already contains about 370 described species; it represents the Group IV.,
the “ Hélopides vrais,” of Lacordaire’s tribe Hélopides. ‘Till the publication of Allard’s
elaborate monographic revision of the “ Hélopides vrais” (from which several North-
American as well as many Magellanic or Antarctic species are omitted) the very large
number of species were principally contained in the genus Helops; the few known
Tropical-American forms being mostly referred to Nautes and Tarpela.

Dr. Horn, in his revision of the Tenebrionide of America north of Mexico (Trans.
Am. Phil. Soc. new ser. xiv. p. 253, and Trans. Am. Ent. Soc. viii. p. 152), places the
whole of the North-American species in the one genus Helops.

Allard, however, in his (more recent) revision has divided Helops into a large number
of genera and subgenera, four or five only of which appear to be represented in the
New World, by far the greater majority of genera and species being from the north
temperate zone. .

From the large number of species (74) now recorded from Central America it will be
seen that tropical regions also contain a considerable number of ‘ Helopides,’ some of
which (both apterous and winged) are of brilliant metallic colours; a very large proportion
of these are described as new. I am unable to identify a single one of our species with
those of North America, representatives of many of which I have before me for com-
parison ; we have not, however, any material from the more northern Mexican States,
and some of the species described from Texas and Arizona may yet be found to extend
into our region.

Nautes is here placed at the head of the group on account of its affinity with certain
“ Cnodalonides.”

NAUTES. 277

The different species are found upon herbage; or by beating the withered still-
attached leaves of fallen trees ; or beneath loose bark.

NAUTES.
Nautes, Pascoe, Journ. Ent. ii. p. 475 (1866); F. Bates, Ent. Monthly Mag. vi. p. 270 (1870) (pars) ;
Allard, Rév. Hélopides, L’Abeille, xiv. p. 6 (pars); Mittheil. der schweiz. ent. Ges. v. pp. 19,
58, & 245 (pars).

I take WV. fervidus as the type of this New-World genus, and include in it such
species as seem to have a close affinity with that insect; some metallic species,
however, here referred to Tarpela might almost as well be included in Nautes, the
structure of the pro- and mesosterna proving, at least in Tarpela, to be a variable
character.

Nautes, thus understood, contains a considerable number of species, nearly all of
which appear to be peculiar to our region ; so far as at present known, the genus ranges
from Mexico to Colombia, and is also represented in the Antilles. The numerous
additional species now known renders some addition necessary to the definition of the
genus, a single species only (lV. fervidus) being known to the original describer. As
understood here it will not include NV. eximius, F. Bates, nor the Texan Helops farctus,
Lec. The species are, with some few exceptions, of brilliant metallic colours and
often very shining, and suggestive of some of the genera of the preceding group, the
“ Cnodalonides.” The head is deeply sunk into the prothorax, short, rarely long
(NV. striatipennis); in the more typical species very short, a little convex, and with
the epistoma confounded with the front ; in others shallowly, rarely deeply, transversely
impressed in front. The prothorax is transverse, sometimes nearly twice as broad as long,
very strongly margined, the margins usually thickened, and very closely embraces the
elytra; the anterior angles are broad and rather prominent, but usually more or less
rounded (in one species, WV. antennatus, subtriangularly produced, thus resembling certain
forms of Tarpela); in most of the shorter and more convex species (both apterous and
winged) the base is very strongly bisinuate, and has the central portion somewhat produced
and rounded, and the margin sometimes very indistinct or obsolete. The strongly
margined elytra vary in shape from moderately long and subparallel to very short and
gibbous; in the short, very convex or gibbous (apterous) species the sutural stria is
quite obsolete, though deeply impressed in the others. The mesosternum is V-shaped,
and more or less deeply excavate; usually horizontal and with the raised sides quite
vertical in front, in others the raised sides more rounded off above. The prosternum
(or prosternal process) is always produced; in the more typical species (WV. fervidus,
&c.) quite horizontal and acuminately produced; in the shorter and more convex
species it is, as might be expected, broader and shorter. The metasternum is
variable in length ; shorter in the apterous species; in one, WV. enoplopoides, exceedingly
short. The elytral epipleuree are abbreviated at the last ventral suture. The legs in

278 HETEROMERA.

most of the species comparatively smooth. The anterior tarsi have the three basal joints
equal in width, often very short, and usually dilated in the male, the third joint more
or less deeply excised or bilobed, the fourth joint quite small and short and deeply sunk
into the third. The hind tibie in a few of the apterous species, WV. versicolor &c., are
a little sinuous, or swollen in the middle of the inner side in the male. The intercoxal
process is more or less triangular, though very broad and almost rounded in W. eno-
plopoides. The scutellum is large in the winged species, smaller in the apterous forms ;
in one or two of these latter (e. g. WV. nitidissimus and N. nodulosus) very small. The
males of most of the winged species have the ventral segments 1-3, or 1 and 2, a little
flattened in the middle, and this part closely and finely punctured, and usually pubescent.
In the apterous species the ventral surface of the male is sculptured as in the female.

Nautes will doubtless prove eventually to be well represented in Tropical South
America.

a. Species winged ; the ventral segments 1-38 more or less flattened and closely
punctured, and usually pubescent, along the middle in the male.

1. Nautes fervidus. (Tab. XII. fig. 7, 2.)

Nautes fervidus, Pascoe, Journ. Ent. ii, p. 476"; Allard, Rév. Hélopides, L’Abeille, xiv. p. 6°;
Mittheil. der schweiz. ent. Ges. v. pp. 58 & 245°.

Nautes eneus, F. Bates, Ent. Monthly Mag. vi. p. 270*; Allard, Rév. Hélopides, L’Abeille, xiv.
p- 7°; Mittheil. der schweiz. ent. Ges. v. pp. 58 & 246°.

Hab. Mexico? (coll. F. Bates), Cordova (Sallé*), Jalapa (Hége); GuatemaLa, El
Tumbador, Las Mercedes, Senahu, Sinanja, Panzos, Teleman, San Juan in Vera Paz
(Champion) ; Nicaracua® (coll. F. Bates ®), Chontales (Belt, Janson *).

A common species in Central America, though apparently not extending south of
Nicaragua. V. wneus, F. Bates, as already suggested by Allard (op. cit.), is merely a
variety of this rather variable insect—the difference of colour and size, the absence of
oblique impressions between the eyes, &c., proving to be of no value when a long series
is examined. WV. fervidus varies in size from 6-10 millim.; the male has the ventral
segments 1-3 more closely punctured, and very slightly pubescent, in the middle.

An example from Jalapa is figured.

2. Nautes glabratus.

Broad ovate, convex, light brownish-sneous, the elytra tinted with green and cupreous, shining. Head short,
rather finely and somewhat sparingly punctured, the intraocular space and vertex much smoother, the
epistoma scarcely defined posteriorly (the usual groove almost or quite obsolete); antenne moderately
long, ferruginous ; prothorax broad, strongly transverse, very strongly margined at the sides and obsoletely
so at the base, the lateral margins thickened and reflexed and very narrowly grooved within, the sides a
little rounded and converging from the base, the apex deeply emarginate, the anterior angles very
broad and narrowly rounded, the base very strongly bisinuate, and with the broadly rounded central
portion produced a little beyond the obtuse but prominent hind angles, the basal fovess almost or quite
obsolete, a deep oblique impression on each side (extending almost to the hind angles) a little before the base,

NAUTES. 279

the surface sparingly and subequally punctured, the punctures fine and shallow, and if anything a little closer
on the disc, the sides, base, and apex lighter in colour; scutellum triangular, smooth; elytra broad, short,
widening a little in their basal fourth, thence subparallel for about one third of their length, the humeri
rounded and not prominent, strongly margined, striate, the striz finely, shallowly, and rather distantly
punctured, the interstices flat and almost smooth, slightly cupreous in tint, the suture or second interstice
and two ill-defined oblique stripes more or less metallic green; legs ferruginous; anterior tarsi with
joints 1-3 equal in width, and dilated in the male, the fourth joint small and quite short; beneath light
reddish-brown, shining, very sparingly and finely punctured, the ventral segments 1-3 shallowly longi-
tudinally wrinkled, and in the male closely punctured in the middle, the flanks of the prothorax almost
smooth; prosternum closely punctured, horizontal, subacuminately produced ; mesosternum V-shaped,
horizontal, deeply excavate, its strongly raised sides vertical in front. Body winged.
Length 5 millim.; breadth 3 millim. (¢ 2.)

Hab. Muxico, Cordova (Sallé).

Three examples. This insect is allied to WV. fervidus and the Colombian JV. ovatus,
F. Bates *, from both of which it will be known by its smaller size and much shorter
elytra; in general shape it more nearly resembles WV. varians and allies, though differing
from these in its longer antennee, smoother under-surface, and other characters.

3. Nautes tinctus. (Tab. XII. fig. 8, 2.)

‘Oblong ovate, broad, subparallel, rather depressed, very shining, bright metallic greenish-bronze, the head in
front, the sides of the prothorax, the scutellum, and often the extreme base of the elytra, more or less
suffused with cupreous. Head shallowly transversely impressed in front, sparingly and moderately finely
punctured, the epistoma broadly and shallowly emarginate in front; antenne ferruginous, the five
outer joints rather long, almost equal in length, joints 8-10 subtriangular; prothorax very short, nearly
twice as broad as long, rather convex, the lateral margins reflexed and prominent and narrowly grooved
within, widest at the base, the sides slightly rounded, gradually narrowing from the base to beyond the
middle, thence rapidly and obliquely converging to the apex, the apex rather deeply emarginate, the
anterior angles a little prominent and broadly rounded, the base strongly bisinuate and very narrowly but
distinctly margined, the basal fovese deep, a transverse sinuous impression before the base, and a large
shallow irregular impression at the sides near the middle, and another within both the anterior and the
hind angles in some specimens, the hind angles prominent but obtuse, the surface finely and sparingly
but very distinctly punctured on the disc, much more finely and obsoletely so towards the sides; elytra
rather long, moderately convex, subparallel to beyond the middle, shallowly depressed on each side at the
base some distance within the slightly prominent humeri, wider than the prothorax, finely striate
throughout, the striz with fine distantly placed impressions, the impressions finer towards the sides and
coarsest on the basal half of the disc, the interstices broad, and perfectly flat and smooth throughout; legs
purplish-cupreous, the tarsi lighter ; anterior tarsi in the male with the three basal joints a little dilated
and equal in width (narrower in the female), the fourth joint small and short; beneath very shining, with
metallic golden, cupreous, and greenish tints, the flanks of the prothorax very shallowly and sparingly
strigose, the ventral segments 1-3 longitudinally wrinkled and very sparingly punctured, and in the male
with a longitudinal more closely punctured pubescent space down the middle; prosternum horizontal,
subacuminately produced; mesosternum horizontal, short, V-shaped, very deeply concave within, its
raised sides vertical in front. Body winged.

Length 84-12 millim.; breadth 4-5 millim. (¢ 2.)

Hab. Guatemata, Purula and Sabo in Vera Paz (Champion).
Six examples. This insect is closely allied to some of the varieties of WV. fervidus,
put flatter and less convex; the basal fovez of the thorax more deeply impressed, the

* N. elegans, F. Bates, described from an unknown locality, is, no doubt, a small individual of WV. ovatus.

280 HETEROMERA.

basal margin more distinct; the elytra relatively longer and more parallel, &c.; the
ventral segments 1-3 in the male more evidently punctured and pubescent in the
middle than in WV. fervidus.

N. tinctus was only met with in the dense forest of the Atlantic slope,’ at elevations
of from 3500 to 4500 feet.

4, Nautes splendens.

Oblong ovate, rather convex, very shining, bright metallic greenish-bronze, with cupreous or green reflections.
Head somewhat closely and moderately finely punctured, the vertex smoother, the epistoma almost
truncate in front and limited behind by a shallow groove, a shallow rounded impression on each side
before the eyes; antenne moderately long, reaching to about one-third of the length of the elytra
in the male, joints 8-10 subtriangular, equal in length, the apical one rather longer than the tenth,
brownish piceous ; prothorax short, strongly transverse, rather convex, the lateral margins reflexed and
prominent and narrowly grooved within, widest at the base, the sides slightly sinuate behind, very
gradually narrowing from the base to beyond the middle, thence rapidly and obliquely converging to
the apex, the apex deeply emarginate, the anterior angles prominent and narrowly rounded, the
base strongly bisinuate, the basal fove deep, a distinct rounded impression on each side within the
prominent subrectangular hind angles, and an oblique one on each side just within the anterior margin
opposite the inner limit of the eye, the surface finely and sparingly punctured on the disc, more closely so
at the sides (rather more finely so than the head); elytra convex, moderately long, if anything widest beyond
the middle, very feebly rounded at the sides, very shallowly or obsoletely striate, the strie with fine but
deep not very closely placed elongate impressions, the impressions becoming coarser towards the sides, and
finer towards the apex, the interstices flat and exceedingly minutely and sparingly punctured, a row of
coarse irregular impressions on each side within the lateral margin, rather variable in colour—green with
an oblique bronze stripe from the shoulder to the apex, or, more rarely, bronze, with one or two ill-defined
broad greenish stripes, the suture tinged with cupreous; legs blackish-bronze, the tarsi lighter; anterior
tarsi in the male as in UN. tinctus; beneath shining, brownish-bronze, very shallowly and finely punctured,
the metasternum almost smooth, the ventral segments 1-3 also longitudinally wrinkled, 1 and 2 with
a flattened pubescent space along the middle in the male, the flanks of the prothorax very shallowly
strigose externally; prosternum subhorizontal, acuminately produced; mesosternum narrow, V-shaped,
deeply concave within, its raised sides vertical in front. Body winged.

Length 5-10 millim.; breadth 3-53 millim. (3 @.)

Hab. Panama, Bugaba, Volcan de Chiriqui 2500 to 4000 feet (Champion).

This species is perhaps nearest allied to J. tinctus, though more ovate and more
convex, and comparatively shorter than that insect.

Like many others of this group, WV. splendens varies greatly in size; in one or two
of the largest female examples the usual lightly impressed elytral striz are almost
obsolete. I met with WV. splendens in abundance about the margins of the forest on
the slope of the Volcan de Chiriqui. A single specimen only was captured at Bugaba.

5. Nautes belti. (Tab. XII. fig. 9, 3.)
Nautes belti, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 59 & 2481.

Hab. Nicaracva, Chontales (cols. F. Bates & Haag ', Belt, Janson); Panama, Bugaba,
Volcan de Chiriqui (Champion).

The single female example from the Volcan de Chiriqui differs from the numerous

NAUTES. 281:

Nicaraguan specimens before me in having the thorax more finely and sparingly
punctured ; a male from Bugaba, however, agrees well with the type, and differs only
in its very small size, 44 millim. The ventral segments 1-3 are flattened, closely
punctured, and pubescent along the middle in the male, as in the allied species.

6. Nautes varians. (Tab. XII. fig. 10, 2.)

Ovate, rather broad, convex, variable in colour—usually of a metallic bluish-green, rarely greenish-bronze,
the sides of the elytra, the suture, and the prothorax at the base and apex often cupreous, shining.
Head coarsely and somewhat closely punctured, the punctures here and there obliquely or longitudinally
confluent, the vertex smoother; epistoma short, broadly and feebly emarginate in front, and limited
behind by a rather deep transverse groove; eyes small; antenne short, joints 8-10 subtriangular, the
three or four outer joints flatter and broader than those preceding, piceous or black; prothorax convex,
very short, almost twice as broad as long, narrowly but very distinctly margined, the sides converging
from the base in the female, a little more rounded in the male, the apex deeply emarginate, the anterior
angles obtuse though rather broadly subtriangularly produced in front, the base strongly bisinuate, very
feebly margined, and with the very broadly rounded central portion produced a little beyond the obtuse
hind angles, the basal foveze almost or quite obsolete, the surface more or less coarsely and closely punc-
tured at the sides and more finely and sparingly so on the disc, the punctures somewhat longitudinal in
form and frequently (especially at the sides) longitudinally confluent; scutellum with a few scattered
punctures, often of a cupreous or golden tint; elytra broad, short, strongly convex, somewhat rounded at
the sides, usually widest a little beyond the middle in the female, more parallel in the male, deeply striate,
the striw finely punctate outwardly and shallowly so on the disc, the interstices flat or feebly convex and
almost smooth; legs bronze-black, the femora almost smooth, the tibize closely punctured ; anterior tarsi
in the male with the three basal joints dilated, the fourth joint quite small; beneath bronze-black,
shining, very coarsely and closely punctured, the ventral surface towards the apex much more finely
and sparingly so and also longitudinally wrinkled, the ventral segments 1-3 in the male closely
punctured and pubescent along the middle, the flanks of the prothorax very finely and shallowly strigose ;
prosternum coarsely punctured, subhorizontal, acuminately produced; mesosternum V-shaped, deeply
excavate within, its raised sides rather abruptly rounded off in front. Body winged.

Length 43-8 millim.; breadth 23-43 millim. (¢ 2.)

Hab. Mexico (coll. F. Bates, Sallé), Juquila (Hoge), Playa Vicente (Sal/é).

Var. The head and prothorax more coarsely punctured, the interstices more convex, the metasternum much
smoother in the middle (the coarse punctures more confined to the sides), the flanks of the prothorax more
coarsely strigose externally, the ventral surface more strongly longitudinally wrinkled.

Hab. Mexico, Capulalpam, Yolos, Parada (Sallé).

Captured in plenty by Herr Hoge at Juquila; one or two specimens only from each
of the other localities. The variety is connected with the type by intermediate forms,
though, at first sight, apparently distinct. This is a species with comparatively short,
convex elytra; a very short thorax, the sides of which converge from the base; and
short antenne, with the three or four outer joints flattened and comparatively short
and broad. WV. varians is connected with the other species of the genus by intermediate
forms. A typical example from Juquila is figured.

7. Nautes antennatus. (Tab. XII. fig. 11, 3.)

Broad ovate, short, convex, bright metallic green, the head and prothorax with golden-cupreous reflections.
Head short, closely, somewhat coarsely, and subequally punctured, the frontal region somewhat broadly

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, June 1887. 200

282 HETEROMERA.

triangularly flattened; epistoma short, truncate in front, and limited behind by a rather deep transverse
groove; antenne moderately long, joints 1-7 slender, 8 distinctly wider than 7 and triangular, 9-11
somewhat flattened, about equal in width, much wider than 8 (9 about as long as wide, 10 subtransverse,
both widening outwardly), and together forming a distinct club, piceous, the outer joints black ; prothorax
broad, very strongly transverse, not very convex, finely margined, the margins shallowly grooved within,
the sides a little rounded at the middle, thence very slightly and obliquely narrowing to the base, more
rapidly converging and very feebly sinuate anteriorly, the apex deeply emarginate, the anterior angles
broadly and subtriangularly produced, the base strongly bisinuate, very obsoletely margined, and with
the central portion somewhat produced and rounded in the middle, the basal foveze almost obsolete, the
hind angles subrectangular, the surface closely and comparatively coarsely punctured (the disc similarly
though more sparingly punctured than the head), the outer third on each side much more coarsely so and
the punctures here longitudinally confluent, a broad, shallow, longitudinal impression on each side just
behind the eyes; scutellum large, scutiform, smooth, cupreous in tint; elytra broad, short, subparallel in
their basal third, widest beyond the middle, together broadly rounded at the apex, the humeri rounded
and not prominent in front, deeply striate, the strie finely and closely punctured on the disc and more
coarsely so at the sides, the interstices feebly convex, flatter on the disc, and very minutely and
sparingly punctured; legs slender, the tibia coarsely roughened and punctured and distinctly pubescent ;
beneath bronze-black, shining, slightly pubescent, the metasternum somewhat coarsely punctured at the
sides, smoother in the middle, the ventral segments 1-3 more finely and sparingly punctured and also
longitudinally wrinkled, and in the male very finely and closely punctured in the middle, the flanks of the
prothorax with exceedingly coarse confluent impressions ; prosternum subhorizontal, closely punctured,
-subacuminately produced, the apex with a small projecting point; mesosternum V-shaped, moderately
deeply excavate, the raised sides gradually rounded off in front. Body winged.
Length 54-53 millim.; breadth 37-33 millim. (<¢.)

Hab. Panama, Volcan de Chiriqui (Champion).

Two examples. This insect will be known at once from its nearest allies, V. varians,
&c., by the structure of the antenne, ¢. g. joints 9-11 broad and somewhat flattened
(forming a 3-jointed club) and the others comparatively slender; the short thorax and
elytra, the former rather flat, with prominent anterior angles, and the disc longitu-
dinally impressed on each side in front; the slender legs, broad ovate form, &c.
NV. antennatus may possibly have to be separated from Nautes eventually; it is, how-
ever, connected with the more typical species by intermediate forms *.

8. Nautes breviceps. (Tab. XII. fig. 12.)

Ovate or broad ovate, short, strongly convex, greenish- or golden-bronze, shining. Head very short, very
coarsely, rather closely, and subequally punctured, the punctures more or less transverse in shape; epis-
toma short, truncate in front, and not defined posteriorly ; antenne rather short, in the male reaching to
about one third of the length of the elytra, slender, distinctly widening outwards, joints 8-10 subtri-
angular, the apical joint half as long again as the tenth in the male, piceous; prothorax short, nearly
twice as broad as long, convex, strongly margined, the margins very narrowly grooved within, the sides
rather rapidly converging from the base and a little rounded before the middle, the apex broadly but not
deeply emarginate, the anterior angles broad and somewhat rounded, the base very strongly bisinuate,
finely but distinctly margined, and with its central portion broadly rounded and a little produced, the
basal fovex obsolete, the surface somewhat finely and sparingly punctured on the disc and much more
coarsely and closely so towards the sides, the punctures more or less longitudinal in form and here and there
longitudinally confluent at the sides; scutellum broad, scutiform, smooth ; elytra short, strongly convex,

* The fragmentary remains of an insect from Yzabal, Guatemala, in the Sallé collection, apparently represent
a species allied to NV. antennatus.

NAUTES. 283

almost gibbous, slightly rounded at the sides, the humeri rounded and not prominent, deeply striate, the
strie finely and distantly punctured, the punctures rather coarser outwardly and indistinct towards the
suture, the interstices rather convex throughout and almost smooth; legs slender, rather short, somewhat
closely punctured ; anterior tarsi with the three basal joints equal in width, narrow, and very little wider
in the male, the fourth joint small; beneath dark reddish-brown, shining, very sparingly and finely punc-
tured, the ventral segments 1-3 shallowly longitudinally wrinkled and more closely punctured in the
middle in the female, 1 and 2 flattened and very closely punctured and pubescent along the middle in the
male, the flanks of the prothorax almost smooth; prosternum rather broad, horizontal, a little produced ;
mesosternum short, V-shaped, not very deeply excavate, its narrowly raised sides vertical in front. Body
winged.
Length 33-5 millim.; breadth 24-3 millim. (¢ 9.)

Hab. Panama, David and Caldera in Chiriqui (Champion).

Numerous examples. This species will be identified by its small size, convex form,
short and deeply striate elytra, rather convex interstices, very short thorax, the anterior
angles of which are not prominent, short and very coarsely punctured head, &c.
N. breviceps cannot be confounded with any other species recorded here, though in its
short broad ovate form it superficially resembles V. varians; in general shape it some-
what resembles Phedon, a genus of Chrysomelide. ‘The anterior tarsi are scarcely
dilated in the male, the three basal joints comparatively narrow.

9. Nautes striatipennis. (Tab. XII. fig. 13, ¢.)

Oblong ovate, moderately convex, subparallel, brownish-bronze, the prothorax rather more golden in tint, not
very shining. Head broad, very closely and rather coarsely punctured, the punctures here and there
confluent, the epistoma large, broadly emarginate in front, and defined posteriorly by a shallow groove, a
transverse space on the vertex impunctate; antenne long, nearly reaching to the middle of the elytra in
the male, the outer joints long and not wider than the preceding, brownish or piceous; prothorax broad,
transverse, the lateral margins reflexed and prominent but not grooved within, the sides slightly rounded
and converging from a little before the base, the apex deeply emarginate, the anterior angles broadly
produced and rounded, the base strongly bisinuate and shallowly margined, the hind angles subrect-
angular, the basal fove shallow, the surface very closely and somewhat coarsely punctured, a narrow
longitudinal space on the basal half of the disc impunctate; scutellum transverse, smooth; elytra.
subparallel, rather long, deeply striate throughout, the strive indistinctly punctured, the interstices almost.
flat and finely and sparingly punctured, the margins impunctate within; beneath more shining, greenish-
bronze, rather closely and coarsely punctured, the flanks of the prothorax somewhat coarsely strigose, the.
ventral segments 1 and 2 in the male very closely and finely punctured (but not distinctly pubescent) along
the middle; prosternum horizontal, very strongly acuminately produced; mesosternum horizontal,
V-shaped, very deeply concave within, its strongly raised sides quite vertical in front; legs stout, the
tibie roughly and closely punctured ; tarsi stout, the three basal joints of the anterior pair in the male a
little dilated. Body winged.

Length 104-13 millim.; breadth 5-53 millim. (d.)

Hab. Mexico (coll. Oberthiir), Tehuantepec (Sal/é).

Two examples, both males. This distinct species will be known by its comparatively
- elongate form, the very closely and somewhat coarsely punctured head and thorax, and

the deeply striate elytra, the strie almost impunctate; in the structure of the pro-
and mesosternum it agrees perfectly with the typical forms of Nautes. N. striatipennis
cannot be satisfactorily compared with any other species here recorded. |

200 2

284 HETEROMERA.

b. Species apterous; the ventral surface in the male sculptured as in the female.

10. Nautes magnificus.

Broad ovate, short, strongly convex, metallic green, the head in the middle, the prothorax transversely in
great part, and the elytra longitudinally or obliquely, much suffused with fiery cupreous, very shining.
Head somewhat coarsely but not very closely punctured, scarcely visibly impressed in front, the epistoma
broadly but not deeply emarginate; antennz rather long, widening a little outwardly, about reaching to
the middle of the elytra in the male, joints 8-10 subtriangular and rather long, the apical joint about as
long as the tenth, bronze-black, the basal joint paler; prothorax short, nearly twice as broad as long,
strongly margined (the margins reflexed and thick), the sides converging from the base and rounded and
more rapidly narrowing from the middle to the apex, the anterior angles broadly rounded and rather
prominent, the apex arcuate emarginate, the hind angles prominent, the base very strongly bisinuate and
almost immarginate, the basal fovez obsolete, the surface punctured like the head, though rather more
strongly and sparingly so; scutellum triangular, transverse, comparatively small; elytra short, broad, very
convex, almost gibbous, strongly margined, the width of the prothorax at the base, rounded at the sides,
widest in the middle, the humeri rounded and not prominent, deeply striate, the stri more or less finely
punctured, the scutellar stria obsolete, the interstices feebly convex on the disc and strongly so at the
sides and apex, smooth; legs stout, comparatively smooth, the anterior tarsi with the three basal joints
strongly dilated in the male, bronze-black, the tibie and femora suffused with metallic green and
cupreous; beneath very dark brownish-bronze, with metallic green and cupreous tints, shining, very
sparingly though rather coarsely punctured, the ventral surface (the first segment excepted) much more
finely punctured and also coarsely longitudinally wrinkled, the flanks of the prothorax with a few very
widely scattered shallow punctures and wrinkles; prosternum coarsely punctured, broadly horizontally
produced and received by the deeply excavate V-shaped mesosternum, the sides of the latter vertical in
front though rounded off above. Body apterous.

Length 7-10 millim.; breadth 44-6 millim. (¢ Q.)

Had. Guaremata, Purula, Teleman, and San Juan in Vera Paz (Champion).

Six examples. This exceedingly vividly-coloured insect will be known by its short,
broad, almost gibbous shape, and other characters given above ; in general form it bears
a strong superficial resemblance to members of the genus Chrysomela.

I only met with WV. magnificus on the Atlantic slope and in or near the Polochic
valley ; it occurred at elevations situated between 1000 and 4000 feet.

11. Nautes chrysomeloides. (Tab. XII. fig. 14, ¢.)

Closely resembling NV. magnificus and differing as follows :—broader and more convex; the head and prothorax
much more finely punctured; the prothorax a little longer, wider, more convex (the reflexed margins
in consequence not so distinctly visible from above), and more rounded at the sides; the rest as in
NN. magnificus.

Length 8-103 millim.; breadth 54-6? millim. (¢ 2.)

Hab. British Honpuras, Belize (Blancaneaux).

Four examples. Though closely allied to WV. magnificus I believe this insect repre-
sents a distinct species. |

12. Nautes versicolor. (Tab. XII. fig. 15, ¢ .)

Broad ovate, strongly convex, bright metallic green, very much suffused with fiery cupreous, golden, and
purplish tints, these tints on the prothorax taking the form of angulated transverse bands, and on the
elytra of longitudinal or oblique stripes, very shining. Head broad, shallowly transversely impressed in
front, rather sparingly and somewhat finely punctured, the epistoma truncate in front; palpi and antenne

NAUTES. 285

ferruginous; the latter long, fully reaching to the middle of the elytra in the male, joints 8-10 long and
very slightly widening outwardly, the apical joint in both sexes a little shorter than the tenth; prothorax
broad, transverse, convex, strongly margined, the sides a little rounded at the middle, sinuate (and a little
widening in the female) behind, and obliquely converging anteriorly, the anterior angles broad and pro-
minent and narrowly rounded, the apex deeply arcuate emarginate, the hind angles subacute and very
prominent, the base very strongly bisinuate and shallowly but distinctly margined, the basal foves
obsolete, the surface punctured like the head, only much more coarsely so; scutellum small; elytra
rather broader than the prothorax at the base, altogether broader and almost gibbous in the female,
strongly margined, the humeri a little prominent, deeply striate, the stric finely punctured, the scutellar
stria obsolete, the interstices feebly convex on the disc, strongly so at the sides and apex, and very
minutely and sparingly punctured ; legs comparatively smooth, brownish-bronze, the tarsi ferruginous, the
latter long and rather slender; anterior tarsi with the three basal joints a little dilated, and the hind
tibie slightly sinuous in the middle, in the male; beneath shining, brownish-bronze, with golden-green
tints, the middle of the metasternum and the first two ventral segments with scattered coarsish
punctures, the flanks of the prothorax and prosternum with scattered coarser impressions, the ventral
surface also shallowly longitudinally wrinkled; prosternum horizontal, broadly produced, and received by
the deeply excavate V-shaped mesosternum, the sides of the latter vertical in front though rounded off
above. Body apterous.
Length 7-8 millim.; breadth 4-43 millim. (¢ 9.)

Hab. Guatemata, El Tumbador (Champion).

Two examples. This insect resembles V. magnificus and N. chrysomeloides, but
is still more vividly coloured; it will be known from either by the antenne being
more slender, and ferruginous in colour; the thorax sinuate at the sides behind the
middle, and distinctly margined at the base; the scutellum smaller; the elytra more
ovate, and much narrower in the male; the legs more slender; the tarsi longer, and
ferruginous in colour, and not nearly so strongly dilated in the male, &c.

13. Nautes leviventris. (Tab. XII. fig. 16, 2.)

Ovate, short, very convex, unicolorous bronze, rather dull, the elytra a little more shining. Head short,
unimpressed, the epistoma slightly emarginate in front and not defined, very finely and very sparingly
punctured, the vertex almost smooth ; antenns (female) rather short and slender, piceous ; prothorax short,
transverse, strongly margined, the sides very slightly rounded and rather rapidly converging from the base,
the anterior angles a little prominent and broadly rounded, the apex arcuate emarginate, the hind angles
prominent, the base very strongly bisinuate and almost immarginate, the basal foves obsolete, the surface
with indications of minute scattered obsolete punctures, almost smooth; scutellum moderately large,
triangular ; elytra a little wider than the prothorax at the base, gibbous, rounded at the sides, the humeri
slightly prominent, finely striate, the strie with distantly placed fine punctures, the scutellar stria
obsolete, the interstices smooth and slightly convex; legs almost smooth, dark brownish-bronze, the
anterior tarsi (female) with the three basal joints moderately broad; beneath shining, very dark bronze,
impunctate, the ventral surface with shallow scattered longitudinal wrinkles, the flanks of the prothorax
smooth ; intercoxal process triangular; metasternum short, with a rounded impression in the middle
in front, and longitudinally impressed in the middle behind; prosternum narrow, horizontal, acuminately
produced and received by the narrow V-shaped deeply concave mesosternum, the sides of the latter
subvertical in front though rounded off above. Body apterous.

Length 6 millim. ; breadth 33 millim. (¢.)
Hab. Guatemata, Cubilguitz in Vera Paz (Champion).

One example. This insect will be identified by its broad ovate form, gibbous elytra,

286 | HETEROMERA.

smooth thorax and under surface, narrow and acuminately produced prosternum, and
other characters noticed above.

14. Nautes hilaris.

Ovate or broad ovate, very convex, bright golden-bronze, sometimes with a slight greenish tint. Head rather
short, shallowly transversely impressed in front, closely and somewhat coarsely punctured anteriorly, the
vertex very much smoother, the epistoma subtruncate in front; antenne rather long, widening a little
outwardly, not quite reaching to the middle of the elytra in the male, the apical joint about as long as the
tenth, ferruginous ; prothorax short, broad, strongly transverse, strongly margined, the sides gradually
converging from the base, a little rounded about the middle, and more rapidly narrowing anteriorly, the
anterior angles a little prominent and rather broadly rounded, the apex arcuate emarginate, the hind
angles somewhat acute, the base immarginate and very strongly bisinuate, the basal fovex very shallow,
the surface sparingly and moderately finely (though deeply) punctured, a narrow ill-defined longitudinal
space on the centre of the dise impunctate ; scutellum triangular, rather small; elytra a little broader
than the prothorax at the base, very convex, altogether broader and almost gibbous in the female,
rounded at the sides, the humeri a little prominent, finely punctate-striate, the punctures distantly placed
and still finer and almost obsolete behind, the scutellar stria obsolete, the interstices almost flat, smooth ;
legs almost smooth, brownish-bronze, the tarsi ferruginous or fusco-ferruginous, the three basal joints of
the anterior tarsi a little dilated in the male; beneath shining, very dark bronze, the ventral surface
finely and very sparingly punctured and shallowly longitudinally wrinkled, the flanks of the prothorax
very shallowly wrinkled ; intercoxal process triangular; metasternum short, with scattered very coarse
impressions on its anterior half, the side-pieces almost smooth ; prosternum horizontal, rather broad,
broadly produced and received by the deeply excavate V-shaped mesosternum, the sides of the latter
vertical in front. Body apterous.

Length 5-62 millim.; breadth 24-33 millim. (d 2.)

Hab. Guaremata, San Gerénimo (Champion).

Three examples. This species differs from WV. leviventris by its more shining surface,
impressed head, distinctly punctured and differently shaped (more rounded at the sides
and not so rapidly converging from the base) thorax, broader prosternum, coarsely

punctured metasternum, &e.

15. Nautes nitidissimus. (Tab. XII. fig. 17, ¢.)

Oblong ovate, convex, golden-bronze, the prothorax with a slight greenish tint, very shining. Head very
shallowly transversely impressed on each side in front, sparingly and rather finely punctured, the vertex
smoother; antenne long, fully reaching to the middle of the elytra in the male, very slightly widening
outwardly, piceous; prothorax broad, transverse, narrowly margined, somewhat transversely convex, the
sides rounded about the middle, sinuate but not widening (if anything narrowing a little in the male)
from the middle to the base, and narrowing anteriorly, the anterior angles broadly produced and rounded,
the apex arcuate emarginate, the hind angles prominent, the base very strongly bisinuate and almost
immarginate, the basal fovee quite shallow, the disc (in one example) shallowly impressed before
the base, the surface finely and rather sparingly punctured; scutellum comparatively very small, trans-
versely triangular; elytra a little broader than the prothorax at the base, convex, rather short, the humeri
prominent in front and distinctly grooved within for the reception of the hind angles of the prothorax,
rounded at the sides, constricted on each side before the apex, the apex a little produced, very finely and
lightly punctate-striate, the punctures distantly placed, the interstices perfectly flat and exceedingly
minutely and sparingly punctured; legs greenish-bronze, very sparingly punctured; anterior tarsi with
the three basal joints equal in width, the hind tibie in the male a little swollen in the middle of the inner
side; beneath bright greenish-bronze, the ventral surface shallowly longitudinally wrinkled and very
sparingly and finely punctured, the flanks of the prothorax with a few very coarse punctures within
(anteriorly) and smooth without; intercoxal process very broad; metasternum very short, impressed in

NAUTES. 287

the middle in front; prosternum broad, roughly punctured and grooved, horizontal, broadly produced ;

mesosternum horizontal, V-shaped, very deeply concave, the raised sides quite vertical in front. Body
apterous.

Length 6-9} millim.; breadth 33-43 millim. (¢ 2.)
Hab. Mexico, Cordova (Sallé), Jalapa (Hége).

Two examples, apparently male and female. This species has a different facies from
any other here recorded; it resembles WV. fervidus in its brilliant bronzy colour, but it
will be at once known from that insect by its less parallel form; the thorax much
wider anteriorly, more convex, and more narrowly margined; the elytra narrowed
towards the base, constricted behind, and with more prominent humeri; the very much
smaller scutellum; absence of wings, &c.

16. Nautes nodulosus. (Tab. XII. fig. 18, 2 .)

Broad ovate, short, very convex, bright-bronze or greenish-bronze, the head and prothorax usually golden-
cupreous in tint. Head very shallowly transversely impressed in front, rather coarsely and not very
closely punctured, the vertex much smoother; antenne long, fully reaching to the middle of the elytra
in the male, widening a little outwardly, joints 9 and 10 long and subtriangular, the apical joint as
long as the tenth, ferruginous or fusco-ferruginous ; prothorax broad, strongly transverse, strongly mar-
gined, the sides gradually converging from the base, and rounded and more rapidly narrowing from the
middle to the apex, the anterior angles wide, prominent, and broadly rounded, the apex deeply arcuate
emarginate, the hind angles prominent, the base very strongly bisinuate and scarcely perceptibly mar-
gined, the basal fover very shallowly impressed, the surface more sparingly and rather more coarsely
punctured than the head; scutellum small, triangular, transverse ; elytra a little wider than the prothorax
at the base, short, transversely gibbous, rounded at the sides, a little constricted before the apex, the
apex slightly produced, the disc somewhat flattened behind, the humeri slightly prominent, deeply striate,
the stris finely and rather distantly punctured, the interstices impunctate, feebly convex (nearly flat on
the basal half of the disc), and each at the sides and on the posterior half with a row of distantly placed
smooth conical elevations; legs rather slender, smooth, dark bronzy-cupreous, the tarsi long; anterior
tarsi with the three basal joints slightly dilated, and the hind tibie a little sinuous, in the male; beneath
very dark bronze, shining, the ventral surface almost smooth; metasternum short, with exceedingly
coarse scattered impressions, the side-pieces smooth ; intercoxal process broad, margined in front, and with
some scattered coarse impressions within; flanks of the prothorax smooth; epipleure smooth, abruptly
narrowed and sinuous at the last ventral suture; prosternum roughly punctured, horizontal, broadly
produced; mesosternum horizontal, very deeply excavate, V-shaped, the raised sides vertical in front.
Body apterous.

Length 6-83 millim.; breadth 33-5 millim. (¢ 92.)

Hab. Guatemata, Purula, Sinanja, Sabo, Senahu, and San Juan in Vera Paz

(Champion).

Many examples. This insect will be readily identified by the rows of smooth conical
elevations on the sides and posterior half of the elytra and other characters given
above; it is allied to W. nitidissimus, N. maqnificus, &c., and like those species appears
to be confined to the forest-region of the Atlantic slope.

17. Nautes enoplopoides. (Tab. XII. fig. 19, ¢ .)

Bronze-black, rotundate-ovate, short, very convex, rather dull. Head short, broad, at most very feebly trans-
versely impressed in front, rather coarsely but not very closely punctured, the vertex almost smooth ;

288 HETEROMERA.

antenne stout, very long, reaching to the middle of the elytra in the male, very slightly widening out-
wardly, joints 8-10 long, the apical joint in the male rather longer than the tenth, piceous-black :
prothorax very broad, strongly transverse, strongly margined, the margins thickened, the sides gradually
converging from the base, and rounded and more rapidly narrowing from the middle to the apex, the
anterior angles very broad and prominent and rounded, the apex deeply arcuate emarginate, the hind
angles prominent, the base strongly bisinuate and immarginate, the basal fovez quite obsolete, the surface
very shallowly, finely, and sparingly punctured (much more shallowly and finely so than the head); scutellum
small, triangular, strongly transverse; elytra a little longer than the prothorax at the base, short, broad,
gibbous, still more inflated in the female, strongly margined, rounded at the sides, the humeri not promi-
nent, regularly punctate-striate, the punctures fine and distantly placed, the scutellar stria obsolete, the
interstices flat or feebly convex and almost smooth; legs comparatively smooth, very stout, black; tarsi
very stout, and still stouter and with the three basal joints of the anterior pair strongly and equally
dilated in the male; beneath rather more shining, dark brownish-piceous ; metasternum short, exceedingly
coarsely or rugulosely punctured, the side-pieces smooth; ventral surface longitudinally wrinkled, the
first segment also sparingly punctured ; flanks of the prothorax almost smooth; intercoxal process broad,
rounded and strongly margined in front; epipleure smooth, very broad at the base, gradually narrowing
to the last ventral suture; prosternum very broad, shallowly grooved in the middle, a little declivous
though broadly (but not strongly) produced and received by the deeply excavate V-shaped mesosternum,
the sides of the latter vertical in front though rounded off above. Body apterous.
Length 53-8 millim.; breadth 33-53 millim. (¢ 2.)

Hab. GuatTEMALA, Chiacam, Sinanja, Panzos, and San Juan in Vera Paz (Champion).

Numerous examples. This insect cannot be compared with any of the species here
described ; it will be known by its subrotundate gibbous form, dull bronze-black colour,
stout legs, strongly dilated male anterior tarsi, and other characters given above; in
general shape I. enoplopoides resembles the Old-World genus Enoplopus. This species
also is apparently confined to the forest-region of the Atlantic slope, and to elevations
lying between 1000 and 3000 feet.

TARPELA.

Tarpela, ¥. Bates, Ent. Monthly Mag. vi. p. 272 (1870) ; Allard, Rév. Hélopides, L’Abeille, xiv.
p. 4; Mittheil. der schweiz. ent. Ges. v. pp. 19, 56, & 236 (pars).
Lamperos, Allard, loc. cit. p. 4; loc. cit. pp. 57, 241.

I place a large number of heterogeneous species in this genus, including those referred
to it by its original describer ; and also those included in it by Allard, with the exception
of 7. inanis. The structure of the pro- and mesosterna as a generic character cannot, in
my opinion, be considered to have the importance attributed to it by the author of the
genus, unless supported by other characters. The numerous recently discovered Central-
American species connect T. browni and T. tenwicornis with T. (Nautes) eximia, T. Sovei-
pennis, I’. costata, &c.; these latter have the pro- and mesosterna formed as in Nautes—
é. g. the prosternum horizontal and acuminately produced, the mesosternum horizontal,
V-shaped, and with the strongly raised sides quite vertical in front. The seven species
(including 7’. eximia) with the pro- and mesosterna thus formed are also very coarsely
sculptured above and differ very markedly from Nautes. All the other species here referred
to Tarpela have the pro- and mesosterna more or less declivous. Amongst the Central-

TARPELA. 289

American representatives several groups of species, each of a different facies (and
differing considerably in sculpture, &c.), are to be met with: T. browni, 7. thoracica,
T. atra, T. cupreo-viridis, T. puncticeps, T. erifera, T. silvicola, and T. cisteliformis are
species of this kind, each of these having several close allies, though all are connected
by more or less intermediate forms. The characters usually of generic value, such as
the structure of the pro- and mesosterna, tarsi, antenne, epipleure, &c., seem to be
of very little value here. All the species, with the exception of two, are winged ; some
few have the ventral segments 1-3 a little flattened (in 7. depressa broadly concave)
and closely punctured and pubescent along the middle in the male, as in the winged
forms of Nautes. Doubtless many North-American winged species, as well as some
Old-World forms, belong to this genus as understood here.

Section A. Anterior angles of the prothorax very strongly (sometimes acutely) produced ;
upper surface more or less bronze, moderately shining ; epiplewre abbreviated ;
anterior tarsi with the three basal joints rather broad, about equal in width, and
scarcely dilated in the male.

a. Prosternum a little declivous, slightly convex behind or with the apex produced into a
broad or narrow point ; mesosternum declivous, rather feebly excavate.

* Species winged.

1. Tarpela browni.
Tarpela brownii, F. Bates, Ent. Monthly Mag. vi. p. 272, t. 2. f. 4*; Allard, Rév. Hélopides, in
L’Abeille, xiv. p. 72; Mittheil. der schweiz. ent. Ges. v. pp. 56 & 236°.

Hab. Nicaraaua 23, Chontales (Janson 1, Belt); Panama, Volcan de Chiriqui (Cham-
pion).

Mr. F. Bates’s description of the prosternum of Tarpela, presumably including this
species and 7. oblongo-punctata, is apparently drawn from the latter: in T. brownt the
prosternum is not nearly so strongly declivous and very distinctly produced, the apex a
little raised; in 7. oblongo-punctata it is exactly as described, ‘‘ bent down behind the
anterior cox and then expanded and terminating in a broad point.”

9. Tarpela tenuicornis. (Tab. XII. fig. 20, 2.)

Ovate, moderately convex, brownish-«neous, more or less tinged with green, moderately shining. Head
coarsely and very closely punctured, the punctures longitudinally or obliquely confluent, deeply trans-
versely impressed in front; eyes small; antenne moderately long, slender, the three outer joints a little
widened and flattened, piceous, the basal joint paler; prothorax comparatively narrow, transverse,
the base and apex about equal in width, the sides angularly extended a little before the middle and
sinuate behind, the anterior angles very strongly and narrowly produced, the apex with the central
part a little rounded, raised, and somewhat produced in front, the posterior angles rectangular, the base
strongly bisinuate, the basal fovew usually rather deep, the disc with a strong sinuous transverse impres-
sion (sometimes only appearing as a long oblique deep fovea on each side) before the base, the lateral

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1., June 1887. 2 PP

290 HETEROMERA.

margins very slightly extended, narrow, and scarcely reflexed, the surface punctured like the head but
still more coarsely so, the punctures longitudinally confluent on the anterior portion of the disc, and
obliquely so at the sides and base; elytra comparatively short, subparallel in the male, widest a little
beyond the middle in the female, much wider than the prothorax, shallowly, transversely, and broadly
impressed below the base and the central portion transversely swollen in the female, with regular rows of
very deep and coarse transverse impressions, the impressions much finer and shallower posteriorly and
each with a very minute granular point on each side, the interstices almost impunctate, the third and the
seventh from the base nearly to the apex (where they become confluent) and the fifth for about two thirds
of its length very sharply raised, the others at the sides and beyond the middle also more or less costate ;
legs coarsely and very closely punctured, the tibie still rougher; beneath brownish-piceous, shining,
coarsely punctured, the metasternum in the middle and the ventral surface much more finely and sparingly
so, the flanks of the prothorax coarsely punctured ; mesosternum declivous in front, narrowly but not
very deeply excavate ; prosternum slightly declivous behind, the apex produced into a small point.
Length 44-63 millim.; breadth 2-3 millim. (¢ 9.)

Hab. Guatemaa, Cerro Zunil, Zapote (Champion).

Many examples. This species on account of the peculiar sculpture of the elytra
cannot be confounded with any other here described; in general structure it agrees
very well with Tarpela browni, though comparatively shorter in form.

3. Tarpela oblongo-punctata.
Tarpela oblongo-punctata, F. Bates, Ent. Monthly Mag. vi. p. 273"; Allard, Rév. Hélopides,
L’Abeille, xiv. p. 77; Mittheil. der schweiz. ent. Ges. v. pp. 56 & 287°.

Hab. Mexico? (colls. F. Bates 1°, Mus. Brit.).

Two examples only of this species are known to me: one in Mr. F. Bates’s collection,
and another in the British Museum.

4. Tarpela inequalis. (Tab. XII. fig. 21, 3.)

Oblong ovate, subparallel, rather convex, bright greenish-bronze, with a slightly cupreous tint, shining. Head
closely and somewhat coarsely punctured, the space between the eyes confluently and very much more
coarsely so, broadly and triangularly flattened (the depression reaching to the vertex), the epistoma
limited behind by a distinct but shallow groove ; antenne rather short, not reaching to one third of the
length of the elytra in the male, piceous; prothorax short, transverse, strongly margined, the lateral
margins broadly but shallowly grooved within, widest towards the base, the sides almost straight or
scarcely narrowing in their basal third and obliquely converging from the middle to the apex, the apex
very deeply emarginate, the anterior angles broadly and strongly and subtriangularly produced in front,
the base bisinuate, strongly margined, and a little depressed within, the basal fovese rather deep, the
hind angles subrectangular, the disc shallowly longitudinally impressed and with a rounded impression
on each side externally, the surface rather coarsely, sparingly, and very irregularly punctured, the punctures
here and there longitudinally confluent on the disc (more frequently so at the sides and there coarser -
and much more closely placed), the sides, base, apex, and a narrow longitudinal space on the disc bronzy-
cupreous, the rest greenish; elytra convex, rather long, subparallel to beyond the middle, the humeri
broadly rounded, with rows of moderately coarse distantly placed short longitudinal impressions, the
impressions here and there confluent and gradually becoming very much coarser and deeper towards the
sides and finer and shallower towards the apex, the interstices very sparingly and finely punctured, rather
uneven, flat on the disc and apical portion and more or less raised and irregular towards the sides, a row
of coarse deep impressions on each side within the lateral margin, the suture and base narrowly, the
impressions, and the sides bronzy-cupreous, the rest greenish; legs dark bronze, the tarsi lighter, the

TARPELA. 291

anterior tarsi in the male a little dilated; beneath shining, brownish-bronze, very sparingly and finely
punctured, the metasternum almost smooth, the ventral segments 1-3 rather strongly longitudinally
wrinkled, and in the male with a flattened, closely punctured, pubescent space down the middle, the
flanks of the prothorax very shallowly strigose; prosternum a little declivous, subacuminately and
convexly produced; mesosternum declivous, narrow, moderately excavate within.

Length 7-83 millim.; breadth 34-43 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui (Champion). “

Two examples, one of each sex. This insect somewhat resembles Nautes splendens,
but is more parallel; the head and thorax are much more closely and not nearly so
finely punctured, the anterior angles of the latter more produced; the elytra are rela-
tively longer, with rows of much coarser impressions, and not striate; the prosternum
is differently formed, &c. The sculpture of the elytra is similar to that of T. erifera ;
the species seems best placed near 7’. oblongo-punctata.

5. Tarpela torrida. (Tab. XII. fig. 22, .)

Oblong ovate, moderately convex, dark brownish-bronze, slightly shining. Head coarsely and confluently
punctured, the frontal impression shallow, the epistoma feebly but distinctly emarginate ; antenne short,
distinctly widening outwardly, the penultimate joints subtriangular, the apical joint in the male a little
longer than the tenth, piceous ; prothorax transverse, broad, rather strongly margined, the sides slightly
sinuate or almost straight behind the middle and narrowing a little and feebly sinuate anteriorly, the
anterior angles very strongly and angularly produced in front, the hind angles rectangular, the base feebly
bisinuate, the basal fovez shallow, the disc longitudinally impressed in the middle behind, the surface
very closely and coarsely punctured, the punctures sinuously or longitudinally confluent ; elytra a little
wider than the prothorax, rather long, the humeri a little produced in front and grooved within for the
reception of the hind angles of the prothorax, subparallel or a little rounded at the sides, deeply punctate-
striate from the base to the apex, the scutellar stria deep, the punctures coarse, oblong, and rather closely
placed, the interstices convex throughout and scarcely visibly punctured ; femora sparingly but rather
coarsely, the tibiee closely and roughly, punctured ; the entire surface beneath coarsely and closely. punc-
tured, the flanks of the prothorax confluently so, the punctures here and there longitudinally confluent
at the sides; prosternum gradually declivous, rather convex behind, the apex sometimes armed with a
short conical prominence ; mesosternum feebly excavate.

Length 6-8} millim.; breadth 3-4 millim. (3 @.)

Hab. Mexico, Ventanas in Durango (Hodge).

Five examples. Of the species here enumerated 7’. torrida most nearly resembles
T. durangoensis, but differs in being winged ; and in having the epistoma more shal-
lowly emarginate ; the thorax less convex,.wider posteriorly, and with rather more acute
anterior angles; the scutellum larger; the humeri more prominent; the under surface
still more coarsely punctured, &c.; the prosternum is formed much as in that species.
- Compared with 7. browni, T. foveipennis, &c., it has the thorax much straighter at
the base ; and the elytra deeply punctate-striate (in this respect approaching 7’. costata),
instead of having rows of coarse longitudinal impressions.

In one of the female examples the elytral striz are much more finely punctured than
in the others; I do not think, however, that it represents more than a variety of this

insect.

2PP2

292 HETEROMERA.

** Species apterous.

6. Tarpela durangoensis.

Oblong ovate, moderately convex, dark brownish-bronze, slightly shining. Head shallowly impressed in front,
the epistoma distinctly arcuate emarginate, coarsely, very closely, and confluently punctured; eyes com-
paratively large; antenne rather short, the third joint not twice the length of the second, the three
outer joints wider and equal in length, 9 and 10 subtriangular, piceous, the basal joint lighter ; prothorax
transversely convex, broader than long, the sides slightly and about equally narrowed before and behind
the middle, feebly sinuate before the base, and narrowly but very distinctly margined, the anterior angles
broadly and very strongly produced in front and a little rounded, the hind angles subrectangular, the base
very feebly bisinuate, almost straight in the middle, the basal foves almost obsolete, the surface punctured
like the head but with the punctures rather more regular and not so frequently confinent ; seutellum
transverse, sparingly punctured ; elytra distinctly wider than the prothorax, subtruncate at the base, the
sides straight in front, a little rounded beyond, slightly transversely swollen in the middle, deeply
punctate-striate throughout, the scutellar stria deep, the punctures oblong in form, rather coarse, and
closely placed, the interstices convex and almost smooth ; tibie roughly and closely punctured, the femora
smoother ; the entire surface beneath (including the flanks of the prothorax) coarsely and closely punc-
tured, the punctures here and there longitudinally confluent at the sides; prosternum rounded off and
declivous, the apex not produced; mesosternum rather deeply excavate. Body apterous.

Length 7 millim.; breadth 33 millim. ( 2.)

Hab. Mexico, Ciudad in Durango 8100 feet (orrer).

A single example.

7. Tarpela corpulenta, (Tab. XII. fig. 23.)

Oblong ovate, strongly convex, dark brownish-bronze, slightly shining. Head very coarsely, closely, and con-
fluently punctured, broadly flattened in front, the epistoma distinctly emarginate, the usual transverse
impression very shallow; eyes small; antenne short, slightly passing the base of the prothorax, rather
stout, widening outwardly, the third joint not twice the length of the second, the penultimate joints sub-
triangular, the apical joint longer than the tenth; prothorax very narrowly margined, strongly longitu-
nally convex, broader than long, the sides rounded about the middle, very slightly and somewhat obliquely
(not sinuously) narrowing behind, and more distinctly narrowing and rather strongly sinuate anteriorly,
the anterior angles very strongly and subacutely produced in front, the base very feebly bisinuate (almost
straight), the basal fovece nearly obsolete, the hind angles subrectangular, the surface very closely and
coarsely punctured, the punctures here and there longitudinally or sinuously confluent ; elytra strongly
convex, subtruncate, and slightly wider than the prothorax at the base, a little rounded at the sides,
deeply punctate-striate throughout, the sutural stria deep, the punctures oblong in form, rather
coarse, and somewhat closely placed, the interstices convex and almost smooth; legs short, closely and
coarsely punctured, the femora smoother ; the entire surface beneath (including the flanks of the pro-
thorax) coarsely and closely punctured ; prosternum declivous, the apex not produced ; mesosternum very
narrow, feebly excavate. Body apterous.

Length 63-73 millim. ; breadth 3-33 millim. ( 9.)

Hab. Mexico, Ventanas in Durango (Hoge).

Three female examples. This apterous species will be at once known from TZ. duran-
goensis by its very convex form, small eyes, the sides of the thorax sinuate in front (the
anterior angles in consequence narrower and more acute), &c.; it is allied also to the
Texan Helops farctus, Leconte (placed in Nautes by Allard), but is very much smaller
and narrower than that apterous insect.

TARPELA. 293

b. Prosternum horizontal, strongly acuminately produced ; mesosternum more or less
horizontal, its raised sides vertical in front, deeply excavate. Species winged.

8. Tarpela thoracica. (Tab. XII. fig. 24.)

Oblong ovate, subparallel, moderately convex, brownish-eneous, with a slight golden tint, moderately shining.
Head slightly pilose, very coarsely and somewhat closely punctured, the intraocular space exceedingly
coarsely so and the punctures here longitudinally or obliquely confluent, the usual transverse depression
very broad and deep and extending backwards to beyond the eyes and there ending in a rounded impres-
sion; eyes oblique, narrow, convex; antenne rather stout, ferruginous, the four outer joints darker and
a little wider ; prothorax very uneven, though a little flattened, transverse, broad, as wide anteriorly as at
the base, the sides very feebly sinuate behind the middle, slightly narrowing and rounded just before the
apex, and irregularly and coarsely crenulate in their apical half, the anterior angles very strongly and
broadly produced (extending as far as the front of the eyes) in front and narrowly rounded, the apex
very deeply emarginate and with the central third almost straight and somewhat raised, the hind angles
subrectangular, the base very strongly bisinuate, the basal fovese broad and deep, the disc longitudinally
impressed in the middle (more distinctly so towards the base), the surface punctured (the disc usually
rather more sparingly) like the middle of the head; elytra wider than the prothorax, a little flattened
on the disc, with rows of very coarse deep longitudinal not very closely placed impressions, the impressions
towards the sides slightly coarser and there placed in larger and shallower excavations, the interstices very
evidently though sparingly punctured, rather irregular and here and there transversely connected one with
another, slightly convex outwardly, and the third, fifth, and seventh sinuously costate towards the apex, the
humeri prominent in front; legs coarsely punctured, the tibiae still more closely and roughly so; beneath
of a golden-brassy tint, more or less tinged with green, shining, very coarsely but not closely punctured,
the middle of the metasternum much smoother, the flanks of the prothorax very coarsely strigose ; meso-
sternum horizontal, V-shaped, deeply excavate within, its raised sides vertical in front ; prosternum hori-
zontal, strongly acuminately produced.

Length 73-92 millim.; breadth 33-5 millim. ( ¢ 9.)

Hab. Nicaraaua, Chontales (Belt).

Six examples. ‘This species, though differing greatly in the structure of the pro-
sternum, is evidently allied to 7. browni.

9. Tarpela reticulata.

Allied to 7. thoracica and differing as follows :—The entire surface sparsely but distinctly pubescent ; the pro-
thorax broader, more widened anteriorly, the sides more distinctly sinuate behind the middle and more
coarsely crenulate in front, the anterior angles exceedingly prominent, the surface very coarsely and
rugosely punctured ; the scutellum larger; the elytra longer and more parallel, more abruptly narrowed at
the shoulders (somewhat as in 7’. costata), the humeri rounded off and not prominent in front (the base in
consequence straighter), with rows of very coarse and deep longitudinal impressions from the base to the
apex, the impressions still coarser towards the sides, the interstices very irregular and almost smooth, the
third, fifth, and seventh costate (the impressions thus forming double rows, the interspaces being trans-
versely connected one with another), the surface clothed with scattered suberect hairs; the under surface
very coarsely punctured, the flanks of the prothorax very coarsely strigose ; the rest as in 7’. thoracia.

Length 11 millim.; breadth 53 millim. (¢?)

Hab. Honpuras (Dyson, in Mus. Brit.).
A single example of this distinct species is contained in the National collection.

10. Tarpela costata. (Tab. XII. fig. 25.)

Oblong ovate, subparallel, moderately convex, brownish-eneous, with a slight golden tint, rather dull, slightly
pubescent, the elytra clothed with short scattered suberect hairs. Head as in 7. thoracica, but with the

294 HETEROMERA.

intraocular space still more coarsely and confluently punctured ; antennz rather more slender towards the
base than in 7’. thoraciea; prothorax much as in TZ’ thoracica, but with the entire surface still more
coarsely and closely punctured, the punctures exceedingly coarse and obliquely or longitudinally confluent ;
elytra rather more parallel (at least in the male) than in 7’. thoracica, with regular rows of coarse deep
longitudinal closely placed impressions from the base to the apex, the interstices about as wide as or
scarcely wider than the rows of impressions (the sutural interstice from the end of the sutural row much
the broadest), regularly and strongly convex throughout, and almost smooth, the humeri prominent in
front ; femora very coarsely and rather closely punctured, the tibie still more closely and roughly so ;
beneath golden-bronze, more shining, exceedingly coarsely punctured, the middle of the metasternum
smoother, the punctures on the sides and ventral surface more or less longitudinally confluent, the flanks
of the prothorax very coarsely strigose; mesosternum horizontal, V-shaped, deeply excavate within, its
raised sides vertical in front; prosternum horizontal, strongly acuminately produced.
Length 7-8; millim.; breadth 33-4 millim. (¢ @.)

flab. Mexico, Acapulco (fHége).

Six examples. This species will be readily identified by the peculiar sculpture of the
elytra, the exceedingly coarsely punctured thorax and under surface, and the sparingly
pilose surface.

11. Tarpela foveipennis. (Tab. XII. fig. 26.)

Elongate ovate, moderately convex, subparallel, brownish-bronze, with a slight greenish tint, not very shining.
Head very broadly transversely impressed in front, and with a shallow rounded impression between the
eyes, very coarsely, closely, and subequally punctured, clothed with short scattered decumbent hairs, the
labrum densely fringed with fulvous hair; antenna rather short, piceous ; prothorax very uneven, trans-
verse, widest about the middle, the sides sinuate and a little narrowed before the base, slightly rounded,
and about equally narrowing anteriorly, and rather strongly margined, the margins coarsely crenulate
before the middle, the anterior angles broadly and strongly produced and rounded, the apex with the
central part almost straight and slightly raised, the posterior angles subrectangular, the base strongly
bisinuate and very distinctly margined, the basal foveee broad and deep, the disc with traces of a smooth
impressed central line and with a shallow rounded impression on each side above (and within) the fover,
the surface subequally punctured like the head but rather more coarsely so, the punctures mostly separate
one from another, of a greener tint than the head or elytra; elytra wider than the prothorax, iong, sub-
parallel, the humeri a little prominent, with rows of very coarse deep longitudinal impressions, the
impressions shorter, finer, and much more closely placed on the basal fifth, if anything finer outwardly,
and at the sides and apex placed in large shallow excavations, the interstices sparingly but very distinctly
punctured, rather irregular, somewhat raised, and here and there transversely confluent towards the sides _
and apex, the third, fifth, and seventh sinuously costate behind, of a brownish-bronze tint ; legs coarsely,
the tibie very roughly and confluently, punctured, clothed with short decumbent hair, the inner sides of
the tibiae and the femora beneath with longer hair; beneath greenish-bronze, shining, very coarsely
punctured, the flanks of the prothorax very coarsely strigose ; mesosternum subhorizontal, V-shaped,
moderately deeply excavate within, its raised sides subvertical in front though rounded off above; pro-
sternum horizontal, strongly acuminately produced.

Length 123 millim. ; breadth 54 millim.

Hab. Mexico, Chiapas (Sallé).

One example. This species is closely allied to, and of the size of, 7. thoracica; it
differs, however, in the head being less deeply impressed in front, and more equally
punctured ; the thorax more rounded at the sides and rather strongly sinuate before the
base, with the anterior angles less produced, and the surface more equally punctured ;
the legs more pubescent and more coarsely punctured; the mesosternum a little rounded

TARPELA. 295

off at the sides in front, &c. The elytra are sculptured as in 7. thoracica; the inter-
stices are, however, more distinctly punctured.

12. Tarpela sculptilis.

Allied to 7. fovetpennis and differing as follows :—The antenne more slender; the prothorax rather flatter, the
sides more strongly sinuate towards the base, a little wider behind, less strongly margined, not quite so
coarsely punctured, the punctures here and there longitudinally confluent (especially on the basal half of the
disc), and without trace of a smooth central line; the elytra comparatively shorter, with regular rows of
coarse moderately deep longitudinal impressions, the impressions somewhat closely placed (still more closely
so on the disc at the base and there more or less confluent) and not coarser outwardly, the interstices
almost flat and scarcely visibly punctured, the third, fifth, and seventh slightly costate (but not sinuously
80) before the apex ; mesosternum horizontal, V-shaped, deeply excavate within, ils raised sides vertical
in front; prosternum horizontal, strongly acuminately produced ; beneath brownish-bronze, very coarsely
punctured, the flanks of the prothorax very coarsely strigose.

Length 97 millim.; breadth 42 millim.

Hab. Mexico, Jalapa (fHége).

One example.

13. Tarpela eximia. (Tab. XIII. fig. 1, 3.)
Nautes eximius, F. Bates, Ent. Monthly Mag. vi. p. 271"; Allard, Rév. Hélopides, L’Abeille, xiv.
p. 67; Mittheil. der schweiz. ent. Ges. v. pp. 59 & 249°.

Hab. Nicaracua? (coll. F. Bates?), Chontales (Janson 1, Belt).

14. Tarpela verzpacis. (Tab. XIII. fig. 2, ¢.)

Oblong ovate, convex, subparallel, brownish-sneous, slightly tinged with green or golden, shining. Head
coarsely and somewhat closely punctured, the punctures here and there longitudinally confluent at the
sides, rather deeply transversely impressed in front ; antenne comparatively long, reaching nearly to the
middle of the elytra in the male, widening a little outwardly, piceous, paler towards the base; pro-
thorax transverse, broad, the sides a little sinuate but not narrowing behind the middle and very slightly
narrowing in the apical third (as wide before the middle as at the base in the male), strongly margined,
the margins narrowly grooved within but not crenulate, the anterior angles strongly triangularly produced
in front and narrowly rounded or subacute, the apex with the central part almost straight and
somewhat raised, the base bisinuate but not strongly so, the basal foves deep, the disc transversely
impressed behind, the hind angles subrectangular, the surface punctured like the head but more coarsely
and more irregularly so, the dise smoother and much more sparingly punctured ; elytra subparallel, convex,
wider than the prothorax at the base, the humeri rather prominent, the scutellar region more or less
depressed, the scutellar stria very deeply impressed, with rows of short more or less longitudinal closely
placed impressions from the base to the apex, the impressions comparatively fine on the disc and here placed
upon shallow strie and becoming very much coarser outwardly, the interstices almost impunctate, broad
and almost flat on the disc, narrower and slightly convex outwardly, and the third raised and subcostate
just before the apex, with two ill-defined sinuous cupreous stripes on either side outwardly extending from
the shoulder to the apex; legs coarsely and closely punctured ; beneath golden- or greenish-bronze, rather
coarsely but sparingly punctured, the ventral surface also longitudinally wrinkled, the sides of the meta-
sternum and the flanks of the prothorax very coarsely punctured, the ventral segments 1 and 2 in the
middle in the male a little flattened and pubescent and more finely punctured; mesosternum horizontal,
V-shaped, deeply excavate, its raised sides vertical in front; prosternum horizontal, strongly acuminately

produced.
Length 53-73 millim.; breadth 23-33 millim. (d Q-)

Hab. GuatTemata, San Gerénimo ( Champion).

296 HETEROMERA.

Four examples. This species is perhaps nearest allied to 7. eximia, from which it
will be known by the head being rather longer and not so deeply excavate in front ;
the antenne longer; the thorax flatter, less narrowed and straighter at the sides
anteriorly; the elytra with the interstices flatter, and the rows of impressions much
finer and more lightly impressed on the disc; and the upper surface not nearly so vividly
coloured.

Section B. Anterior angles of the prothorax less prominent (rarely rounded) ; upper
surface varying from dull dark bronze to bright metallic bronzy-green. Species
winged.

1. Upper surface dull, scarcely shining ; prothoraxz narrowly margined ; anterior tarsi
with the three basal joints rather broad, about equal in width, and sometimes a little
widened in the male.

a. Epipleure extending almost uninterruptedly to the apex of the elytra.

15. Tarpela atra. (Tab. XIII. fig. 3.)
Tarpela atra, Allard, Rév. Hélopides, L’Abeille, xiv. pp. 7 & 46+; Mittheil. der schweiz. ent. Ges.
v. pp. 56 & 237%. .

Hab. Mexico (coll. F. Bates 1), Puebla (Sallé 1), Matamoros Izucar, Sayula in Jalisco
(Hoge).

The two examples from Sayula differ from the numerous specimens of 7. atra before
me in having the elytra a little shorter, and with the rows of impressions rather coarser
on the disc; I do not think they represent more than a local variety of that insect.

V 16. Tarpela jalapensis.

Elongate ovate, subparallel, bronze or greenish-bronze, rather dull, sometimes a little shining. Head rather
long, closely and confluently and somewhat coarsely punctured, shallowly transversely impressed in front
and also feebly impressed between the eyes; prothorax subquadrate, rather convex, very feebly margined,
transverse or nearly as long as broad, the sides rounded at the middle, narrowing and sinuate behind and
less distinctly so anteriorly, the anterior angles somewhat produced and a little prominent, the apex feebly
emarginate, the hind angles subrectangular or subacute, the base feebly bisinuate (almost straight), the
basal foveze very shallow or obsolete, the surface very closely, equally, and rather coarsely punctured (the
punctures separate one from another); elytra much wider than the prothorax, subparallel, subtruncate at
the base, the hameri rounded, with rows of elongate moderately coarse impressions, the impressions more
or less confluent (thus forming striae), the interstices flat, very distinctly but sparingly punctured, and with
traces of shallow transverse wrinkles ; legs (including the femora) very closely and coarsely punctured,
pubescent; beneath closely and somewhat coarsely punctured, the ventral surface and the metasternum in
the middle more sparingly so, the former also longitudinally wrinkled, the flanks of the prothorax more
coarsely and confiuently punctured ; mesosternum feebly excavate ; prosternum strongly declivous behind
the apex armed with a short erect conical tubercle; epipleurse extending to the apex of the elytra.

Length 83-12 millim. ; breadth 33-44 millim. (3 Q.)

Hab. Muxico (coll. Oberthiir), Jalapa (Hége).

‘TARPELA. 297

Kight examples. This species is allied to 7. atra, from which it is separated by
the longitudinal impressions on the elytra being much shorter and finer (not coarser
outwardly as in 7. atra) and confluent (thus forming strie); the legs are pubescent, the
femora still more closely and coarsely punctured; the prosternum, though similarly
declivous, is armed with a short conical tubercle at the apex (in 7. atra it is almost
simple), &c.

17. Tarpela hogei.

Closely resembling 7’. jalapensis, and differing as follows:—The head shorter, more confluently punctured, the
frontal impression deeper; the antenne more slender, the third joint comparatively much longer, reddish-
brown in colour, the three apical joints darker; the prothorax shorter and more transverse, the apex still
more feebly emarginate, the anterior angles less prominent and obtuse, the sides not sinuate before the
base but gradually narrowing to the obtuse hind angles, the punctures more or less confluent; the elytra
with the base straight in the middle, the humeri obliquely cut off and not prominent and broadly and

‘shallowly impressed within, the rows of confluent elongate impressions rather more deeply impressed,
the interstices much more finely and more sparingly punctured; the legs more slender, though (including
the femora) equally coarsely punctured; the prosternum only slightly transversely raised at the extreme

apex.

Length 82 millim. (@.)

Hab. Mexico, Ventanas (H6ge).

One example. From 7. oblonga and T. socia it will be known by its less prominent
humeri, more coarsely punctured femora, complete epipleure, &c.

18. Tarpela setigera. (Tab. XIII. fig. 4, 2.)

Elongate ovate, subparallel, narrow, dark reddish-brown, with a slight bronzy tint, slightly shining, sparingly
clothed with short bristly hair. Head long, shallowly transversely impressed in front, very closely, equally,
and rather coarsely punctured; antenne (female) short, closely punctured, dark reddish-brown, the basal
joint red; prothorax rather narrow, transverse, convex, very narrowly margined, the sides rounded, widest
about the middle, very feebly sinuate behind, and a little more narrowed towards the base than in front,
the angles obtuse, the apex feebly emarginate (straight when viewed from above), the surface very closely,
coarsely, and equally punctured, the disc with a smooth central line in the basal half, the base almost
straight, the basal fovew indistinct; elytra considerably wider than the prothorax, long, subparallel, the
base truncate in the middle, the humeri rounded, with rows of short, longitudinal impressions, the
impressions closely placed, somewhat coarse and deep, and not coarser outwardly, the interstices very
slightly convex and very finely and sparingly punctured ; legs (including the femora) closely, coarsely, and
roughly punctured, thickly clothed with very short hairs ; beneath pubescent, sparingly and somewhat
coarsely punctured, the metasternum more coarsely and closely so at the sides, the flanks of the prothorax
confluently punctured ; prosternum rounded off and declivous, the apex not produced; mesosternum very

shallowly excavate; epipleure extending to the apex of the elytra.

Length 9 millim.; breadth 33 millim. ( 2.)

Hab. Mexico, Cordova (Sallé).

One example. This species in its general form, and in the shape of the thorax,
prosternum, &c., nearly agrees with 7. atra; it differs from that insect in being clothed
with short bristly hairs, and in this respect somewhat resembles 7’. hispidula.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1887. 2 QQ

298 HETEROMERA.

b. Epipleure: abbreviated.
19. Tarpela contigua.

Oblong ovate, dull brownish-bronze. Head rather long, very closely, coarsely, and confluently punctured,
shallowly transversely impressed in front; antenne (female) rather short, widening a little outwardly,
black ; prothorax transverse, the sides rounded about the middle, a little narrowed and sinuate before the
base and apex, the anterior angles slightly prominent though obtuse, the hind angles subrectangular, the
apex rather shallowly emarginate, the base feebly bisinuate and with the central portion broadly but very
slightly produced, the basal fovez shallow, the surface very closely, coarsely, and subconfluently punctured ;
elytra much wider than the prothorax, narrowly margined, subtruncate at the base, the humeri rounded,
rather convex, the sides almost straight from the base to the middle but widening a little beyond, with
rows of deep, longitudinal, subconfluent impressions, the interstices feebly convex throughout, and not
visibly punctured; legs (including the femora) coarsely and very closely punctured; beneath dull, the
ventral surface finely, shallowly, and sparingly punctured and wrinkled, the flanks of the prothorax coarsely
and confluently (though shallowly) punctured, the metasternum at the sides also (though not quite
so coarsely) confluently punctured ; mesosternum feebly excavate ; prosternum declivous behind, the apex
produced into a short conical tubercle; epipleure narrowed at the last ventral suture, thence narrowly
extending to the apex.

Length 73 millim. (2.)

Hab. Mexico, Huetamo in Michoacan (Hége).

One example. This insect resembles 7. jalapensis and T. hégei, but is duller ; the
elytra are shorter and less parallel, and with feebly convex interstices; the thorax is
punctured, and of very nearly the same shape as in 7. hégei, but with more pro-
minent angles; the sides of the metasternum (as well as the flanks of the prothorax)
are coarsely and confluently punctured; the prosternum as in 7’. jalapensis.

20. Tarpela oblonga.

Elongate ovate, subparallel, moderately convex, brownish-piceous, with a slight bronzy tinge, dull, scarcely
shining. Head rather long, very closely and coarsely punctured, the punctures between the eyes still
coarser and irregularly confluent, the usual transverse impression shallow, the epistoma rather long ;
antenne rather long, in the male about reaching to the first third of the elytra, reddish-brown or piceous ;
prothorax somewhat convex, subquadrate, rather broader than long, narrowly margined, widest at the
middle, the sides narrowing a little behind and sinuate before the base, and slightly narrowing and feebly
rounded from the middle to the apex, the apex rather shallowly emarginate, the anterior angles a little
prominent, the base very feebly bisinuate, the basal fovez very shallow, the hind angles subrectangular,
the entire surface coarsely, equally, and subconfluently punctured; scutellum with a few scattered rather
coarse punctures; elytra considerably wider than the prothorax, long, subparallel to far beyond the
middle, abruptly and obliquely narrowed at the shoulders, the humeri a little prominent in front and
grooved within for the reception of the hind angles of the prothorax, with rows of rather coarse, closely
placed, short longitudinal impressions, the impressions (including those of the scutellar row) deeper and
confluent on the basal third of the disc, becoming a little coarser outwardly, and finer towards the apex,
the sutural row from the middle finer, the interstices almost flat on the disc, a little convex outwardly,
and sparingly and very finely punctured; tibiee coarsely roughened and punctured, the femora coarsely
and more sparingly punctured; beneath shining, the ventral surface rather coarsely and somewhat closely
punctured and also longitudinally wrinkled, the sides of the metasternum very coarsely punctured, the flanks
of the prothorax very coarsely strigose; prosternum rounded off and strongly declivous behind, the apex
slightly transversely raised; mesosternum rather shallowly excavate; epipleuree narrowed at the last
ventral suture, thence very narrowly continued to the apex.

Length 84-104 millim.; breadth 33-4 millim. (¢ Q.)

Hab. Mexico, Jalapa (Hoge).

TARPELA. 299

Numerous examples. Compared with 7. atra this species will be known by the head
and thorax being still more coarsely and confluently punctured; the antenne longer,
the third joint comparatively much longer; the short longitudinal impressions on the
elytra placed closer together, and confluent and very deeply impressed at the base; the
femora not so closely punctured; the flanks of the prothorax very coarsely strigose (not
coarsely and confluently punctured); the epipleure distinctly narrowed at the last
ventral suture, &c.

21. Tarpela socia. (Tab. XIII. fig. 5, ¢.)

Elongate ovate, moderately convex, subparallel, the head and prothorax dark bronze, the elytra brownish-bronze
or dark castaneous, slightly shining. Head coarsely, closely, and irregularly punctured, the punctures
here and there confluent between the eyes, shallowly, but broadly, transversely impressed in front, the
epistoma comparatively long; antenne long, reaching to the middle of the elytra in the male, the third
joint very long, the joints 8-10 a little swollen outwardly, the apical joint in the male curved and consi-
derably longer than the tenth; prothorax broader than long, narrowly margined, the sides somewhat
rounded about the middle, slightly and almost equally narrowing before and behind, a little sinuous before
the base, and abruptly so before the apex, and here and there irregularly crenulate anteriorly, the anterior
angles a little produced and directed outwards, the apex broadly, but not deeply, emarginate, the base
feebly bisinuate, the hind angles subrectangular, the basal fovee shallow, the disc usually with a shallow
curved transverse impression before the base and sometimes with traces of a smooth central line, the
surface very closely and coarsely punctured, the basal half of the dise rather more sparingly so; elytra
considerably wider than the prothorax, long, subparallel, broader in the female, the humeri a little produced
in front, with rows of rather coarse, closely placed, short, longitudinal impressions, the impressions rather
deeper and coarser towards the sides and base, finer and shallower behind, and confluent on the basal
fourth of the disc, the interstices almost flat, and exceedingly minutely and sparingly punctured ; tibie
closely and roughly punctured, the femora more sparingly so; beneath more shining, sparingly, shallowly,
and rather finely punctured, the sides of the metasternum more coarsely so, the flanks of the prothorax
coarsely, shallowly, confluently punctured, the last ventral segment in the male pubescent in the middle ;
prosternum declivous behind, the apex armed with a short, stout, conical tubercle, or transversely raised ;
mesosternum moderately excavate; epipleure narrowed at the last ventral suture, thence narrowly
extending to the apex.

Length 10-15} millim.; breadth 4-63 millim. (¢ 9.)

Hab. Mexico, Acapulco (fHége).

Numerous examples. More shining than 7. oblonga; the antenne longer; the
thorax relatively broader, not quite so coarsely punctured, and with much more
prominent anterior angles; the elytra broader (especially in the female), and rather
more pointed behind, and with the rows of impressions shallower at the base ; the under
surface more finely and shallowly punctured, the flanks of the prothorax confluently

punctured (not coarsely strigose), &c.

92. Tarpela hispidula. (Tab. XIII. fig. 6.)
Tarpela hispidula, Allard, Rév. Hélopides, L’Abeille, xiv. pp. 7 & 47’; Mittheil. der schweiz. ent.
Ges. v. pp. 56 & 238%.

Hab. Mextco (coll. F. Bates} ?).
20Q 2

300 HETEROMERA.

I have only seen two examples of this distinct species, both of which are contained

in Mr. F. Bates’s collection.

Y 23. Tarpela azteca.

Elongate ovate, subparallel, rather depressed, dark brownish-bronze, dull. Head rather short, very closely,
coarsely, and subequally punctured, the epistoma limited behind by a rather deep groove; antenne rather
short and stout, the third joint comparatively short, piceous; prothorax subquadrate, very little broader
than long, narrowly margined, widest at the middle, the sides slightly narrowing and sinuate behind,
and feebly rounded and about equally narrowed anteriorly, the apex rather shallowly emarginate, the
anterior angles a little prominent, the base very feebly bisinuate (almost straight), the basal fovez shallow,
the hind angles subrectangular, the disc slightly transversely flattened before the base, the entire surface
closely and coarsely punctured, the punctures here and there obliquely or longitudinally confluent ;
scutellum rather coarsely punctured; elytra long, subparallel to beyond the middle, considerably wider
than the prothorax, a little flattened on the disc, the humeri broadly rounded and very slightly produced
in front, with rows of rather coarse, closely placed, short longitudinal impressions, the impressions
not becoming coarser outwardly, and rather finer towards the apex, the interstices finely and sparingly
punctured, and slightly convex throughout, the third, fifth, and seventh rather more strongly raised and
subcostate in their posterior half; tibize closely and roughly, the femora rather more sparingly, punctured ;
beneath dark bronze, shining, slightly pubescent, coarsely and closely punctured, the ventral surface rather
more finely so and also shallowly longitudinally wrinkled, the flanks of the prothorax coarsely but not
very closely punctured, the ventral segments 1 and 2 in the male closely and finely punctured and pubes-
cent along the middle; prosternum gradually declivous, convex behind; mesosternum feebly excavate ;
epipleure much narrowed at the last ventral suture, thence very narrowly extended.

Length 7-8 millim.; breadth 3-33 millim. (¢ ¢.)

Hab. Mexico, Guanajuato (Sallé).

Four examples. This insect somewhat resembles 7. atra and T. oblonga, but will be
known from both by the shorter head; the coarsely and separately punctured (not
confluently punctured or strigose) flanks of the prothorax; the differently formed
prosternum (gradually declivous and convex behind); the slightly convex interstices,
the third, fifth, and seventh of which are subcostate behind; its rather depressed form,
and other characters.

24. Tarpela subparailela. (Tab. XIII. fig. 7, ¢.)

Elongate ovate, subparallel, rather depressed, dark brownish-bronze, rather dull. Head short, broad, very
closely, coarsely, and subconfluently punctured, the epistoma rather smoother, truncate in front, and
limited behind by a moderately deep groove; antenne long, rather stout, joints 9 and 10 feebly subtri-
angular, the apical joint in the male scarcely longer than the tenth, clothed with scattered long hairs;
prothorax subquadrate, very little broader than long, narrowly but comparatively rather strongly
margined, the sides feebly sinuate, scarcely narrowing behind, and very slightly narrowed and rounding
anteriorly, the apex feebly emarginate (almost straight when viewed from above), the anterior angles
broadly rounded and not prominent and a little deflexed, the base almost straight, the basal fovese
shallow, the hind angles subrectangular, the disc slightly transversely flattened before the base and with
traces of a smooth central line, a shallow fovea on each side about the middle just within the lateral
margin, the surface closely, somewhat coarsely, and very irregularly punctured, the punctures here and
there confluent, the sides and base much more sparingly punctured than the disc; scutellum broad,
transverse ; elytra long, subparallel, a little depressed on the disc, strongly margined, the humeri rounded
externally and very distinctly produced and grooved within in front, with rows of rather coarse, some-
what distantly placed, short longitudinal impressions, the impressions becoming much coarser outwardly,

TARPELA. 301

and finer, longer, and more widely separated towards the apex, the interstices flat on the disc, a little
convex towards the sides, and very distinctly punctured; beneath more shining, dark reddish-brown, the
flanks of the prothorax and the metasternum at the sides with coarse, scattered impressions, the ventral
surface sparingly and finely punctured and longitudinally wrinkled, the last ventral segment in the male
hairy at the apex; prosternum declivous, the apex with a very small raised point ; mesosternum declivous,
very feebly excavate; legs rather long, moderately coarsely but not very closely punctured, the femora a
little smoother; epipleure abruptly narrowing at the last ventral suture.
Length 10 millim.; breadth 43 millim. (<¢.)

Hab. Mexico (Sallé, ex coll. Sturm).

One example. Resembles 7’. atra, from which it is separated by the shorter head,
stouter antenne, broader and more quadrate thorax, prominent humeri (the elytra not
truncate at the base as in that species), the impressions on the elytra much coarser and
deeper towards the sides, the legs and under surface very much smoother, the flanks of
the thorax coarsely but not closely punctured (not shallowly and confluently so), &c. ;
from T. azteca it may be known by the less prominent anterior angles of the thorax, less
prominent humeri, flatter interstices, more coarsely punctured elytra, &c.
Helops impolitus, Lec., from Texas, is apparently an ally of this. species.

Y 25. Tarpela fallax. (Tab. XIII. fig. 8, 2.)

Oblong ovate, dark bronze, rather dull. Head short, very shallowly transversely impressed in front, very
closely, coarsely, and equally punctured, the punctures here and there longitudinally confluent, the
epistoma short; antenne in the male reaching nearly to the middle of the elytra, much shorter in the
female, joints 8-10 widening a little outwardly, the apical joint in the male slightly longer than the tenth :
prothorax short, transverse, rather convex, somewhat strongly margined, the margins narrowly grooved
within, the sides narrowing and rounded anteriorly, and almost straight or feebly narrowing and sinuate
behind, the anterior angles narrowly rounded though a little prominent, the apex shallowly emarginate, the
hind angles subrectangular, the base feebly bisinuate, the basal fovee shallow, the disc usually semicircularly
impressed before the base and sometimes with a smooth central line, the surface rather coarsely, closely,
and subequally punctured; elytra moderately long, wider than the prothorax, subparallel, widest behind the
middle in the female, somewhat flattened on the disc, the humeri a little prominent in front, rather deeply
striate, the strie with moderately fine not very closely placed impressions, the interstices almost flat on
the disc, very feebly convex outwardly, and minutely and sparingly punctured ; tibie roughly and closely
punctured, the femora very much smoother ; beneath darker bronze, sparingly and not very finely punctured,
the ventral surface also strongly longitudinally wrinkled, the flanks of the prothorax rather finely strigose,
the ventral segments 1-3 in the male slightly flattened and finely and closely punctured and pubescent
along the middle ; prosternum declivous, the apex sometimes transversely raised ; mesosternum very feebly
concave; epipleurse almost ending at the last ventral suture.

Length 63-114 millim.; breadth 3-5; millim. (¢ 9.)

Hab. Mexico, Jalapa, Tampico (Hoge).

Found in plenty by Herr Hoge at Jalapa. This species is not very nearly allied to
any other described here; it will be identified by its comparatively short head, short
and anteriorly narrowed thorax (the anterior angles of which are not prominent),
punctate-striate elytra, and other characters mentioned above.

302 HETEROMERA.

2. Upper surface shining, metallic bronze or greenish-bronze, rarely (T. depressa)
brownish-piceous ; prothorax more strongly margined, the margins often a little
expanded or grooved within; epipleure abbreviated.

* Anterior tarsi with the three basal joints rather wide; a little dilated in the male.

26. Tarpela cupreo-viridis. (Tab. XIII. fig. 9, ¢.)
Tarpela cupreo-viridis, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 57 & 240°.

Hab. Guaremata, El Tumbador 2000 to 3000 feet (Champion) ; Nicaraaua (Salié),
Chontales (colls. F. Bates & Haag1; Janson, Belt).

Four examples captured by myself on the Guatemalan Pacific slope agree well with
the long series of Nicaraguan specimens before me. The male of this species, as noted
by Allard, has a longitudinal band of pubescence along the middle of the ventral
surface; the ventral segments 1-3 are also closely and finely punctured. The pro-
sternum is a little declivous, and then subacuminately produced.

27. Tarpela marginicollis.

Oblong ovate, subparallel, brownish-bronze, the head and prothorax sometimes slightly tinged with green,
rather dull. Head very shallowly transversely impressed in front, rather coarsely, somewhat closely, and
subequally punctured, a transverse space on the vertex almost impunctate, the epistoma broadly but
distinctly emarginate ; antenne rather long, reaching to one third of the length of the elytra in the male,
joints 8-10 long though decreasing slightly in length, the apical joint as long as the ninth, brownish or
piceous ; prothorax broader than long, strongly margined, the margins thickened and grooved within,
the sides narrowing and feebly sinuate before the middle, and more or less distinctly sinuate and
scarcely narrowing behind, the anterior angles broadly produced and narrowly rounded, the hind angles
subrectangular, the base bisinuate and distinctly margined, the basal fovese small but very distinct,
the disc with a shallow sinuous transverse impression (more deeply impressed outwardly) before the
base, the surface finely (or somewhat coarsely) but not very closely, the disc sometimes more sparingly,
punctured; elytra not very convex, wider than the prothorax, long, subparallel, with rows of closely-
placed rather fine or moderately coarse punctures, the punctures rarely here and there confluent, and
becoming coarser outwardly and finer and shallower towards the apex, the interstices flat on the disc,
regularly but very feebly convex outwardly, very shallowly, finely, and sparingly punctured, and the
third and the seventh sometimes slightly raised and confluent just before the apex, unicolorous brownish-
bronze, sometimes slightly cupreous in tint; beneath shining, dark bronze, rather closely and somewhat
coarsely punctured, the ventral segments 1-3 also longitudinally wrinkled, the flanks of the prothorax
shallowly strigose ; the ventral surface in the male closely and more finely punctured along the middle,
the segments 1 and 2 flattened and still more closely punctured and pubescent in the centre, aud the last
segment also pubescent in the middle; legs blackish-bronze, the tarsi lighter, the tibize closely and coarsely »
punctured, and with the outer apical angles of the anterior pair comparatively strongly produced;
prosternum declivous, convexly produced ; mesosternum broad, moderately deeply excavate, the raised
sides more or less rounded off in front.

Length 11-15 millim.; breadth 43-7 millim. (¢ 2.)

Hab. Guatemaa, El Tumbador, Cerro Zunil, Volcan de Atitlan (Champion).

Numerous examples of both sexes. This species is allied to 7. cupreo-viridis, but
duller; the thorax is not so strongly transverse, less narrowed in front, and not so

TARPELA. 303

evidently sinuate before and behind; the elytra are unicolorous (without indications
of greenish stripes or reflections), and have the punctures of the strie closer
together, more regular, and not placed in shallow larger and longer depressions
towards the sides, and the outer interstices are without traces of wrinkles. As in
T. cupreo-viridis, the outer apical angles of the anterior tibie are very distinctly
produced.

I only met with this insect on the Guatemalan Pacific slope, and at elevations of
from 2500 to 4500 feet.

28. Tarpela sinuaticollis.

Oblong ovate, convex, subparallel, bright brownish-bronze, with greenish or cupreous tints, very shining. Head
rather closely, somewhat coarsely, and subequally punctured, the vertex smoother, the epistoma short
and limited behind by a distinct groove; antenne rather long, in the male reaching to about one third
of the length of the elytra, widening a little towards the apex, the joints 7-10 subtriangular, the apical
one distinctly longer than the tenth, reddish-brown; prothorax transverse, rather convex, somewhat
strongly margined, the margins narrowly grooved within, the sides a little rounded about the middle,
very slightly narrowing and distinctly sinuate behind, and obliquely converging and sinuate in front,
the apex broadly but not very deeply emarginate, the anterior angles somewhat produced and narrowly
rounded, the base bisinuate, the basal fovese rather deep, the hind angles subrectangular or obtuse, the
disc slightly transversely depressed before the base, the surface rather coarsely, somewhat closely, and
subequally punctured, the base and disc sometimes rather more sparingly so, a narrow longitudinal
space on the centre of the latter impunctate (sometimes obsolete), greenish-bronze ; elytra subparallel
to beyond the middle, very little rounded at the shoulders, the latter rather prominent, rather long
and convex, moderately deeply striate, the strize with fine shallow closely-placed elongate impressions
on the disc, the impressions becoming rather coarser and deeper outwardly and finer and less distinct
towards the apex, the interstices flat throughout and very minutely and sparingly punctured, rather
variable in colour—usually bronzy-cupreous, with the suture and lateral margins more or less tinged
with green, rarely bronze or green, with the suture cupreous; legs dark bronze, the tarsi lighter ;
beneath shining, brownish-bronze, finely and very sparingly punctured (including the metasternum),
the ventral segments 1-8 also shallowly longitudinally wrinkled, and in the male with a flattened closely
punctured pubescent space along the middle, the flanks of the prothorax almost smooth; prosternum
closely punctured, subhorizontal, acuminately produced, the apex with a fine raised point; mesosternum
declivous, rather narrow, moderately deeply excavate.

Length 5-74 millim. ; breadth 23-3} millim. (¢ 2.)

Hab. Panama, Bugaba and David in Chiriqui (Champion).

Eight examples. This insect resembles Vautes belti, but has the prosternum differ-
ently shaped; the head and thorax more finely punctured; the sides of the thorax
obliquely and sinuously converging before the middle and distinctly sinuate and a
little narrowing behind, and the base straighter; the under surface very much more
finely punctured, &c.; the elytra are sculptured and coloured very much as in that
species, though rather more parallel.

29. Tarpela puncticeps.

Oblong ovate, moderately convex, brownish-seneous, shining. Head very coarsely, closely, and subequally punc-
tured, the punctures here and there longitudinally confluent, the epistoma subtruncate in front and limited at
the sides by a shallow impression and behind by a very indistinct (sometimes obsolete) groove ; antenne
moderately long, about reaching to the middle of the elytrain the male, the apical joint longer and stouter than

304 HETEROMERA.

the tenth, ferruginous or reddish-brown ; prothorax transverse, rather convex, somewhat strongly margined,
the margins shallowly but broadly grooved within, the sides feebly sinuate, though scarcely narrowing
from a little before the middle to the base, obliquely converging and sinuate and slightly crenulate
in front, the apex shallowly emarginate, the anterior angles broadly rounded, the base bisinuate, the
basal fovew deep, the hind angles subrectangular, the disc slightly transversely impressed in the middle
just before the base, the surface rather coarsely, somewhat closely, and subequally punctured (much more
finely so than the head), and sometimes with a narrow ill-defined smooth longitudinal space on the basal
half of the disc; elytra moderately long, subparallel or scarcely widening from the base to the middle, the
humeri rather prominent, somewhat deeply striate, the strie rather coarsely and closely crenate-punctate
outwardly and finely punctured on the disc and at the apex, the interstices feebly convex on the disc,
more strongly so outwardly, and finely and quite distinctly punctured ; legs reddish-brown or ferrugi-
nous; beneath reddish-brown, shining, sparingly and finely punctured, the ventral segments 1-3 more
distinctly so and also longitudinally wrinkled and similar in both sexes, the flanks of the prothorax very
finely strigose ; prosternum closely and very coarsely punctured, rather broad, slightly declivous and

then horizontally produced, the apex with a distinct raised point; mesosternum declivous, narrow,
comparatively deeply excavate.

Length 5-8 millim.; breadth 23-34 millim. (¢ 9.)
Hab. Guatemata, El Tumbador, Volcan de Atitlan (Champion).

Nine examples. This insect is perhaps nearest allied to 7. sinwaticollis, the thorax
being somewhat similarly shaped though more broadly grooved within the lateral
margins; it will, however, be readily known from that species by its less parallel form,
more coarsely punctured head, rather convex and more distinctly punctured inter-
stices, more coarsely punctured outer strie, strigose flanks of the thorax, &c. From
Nautes belti it differs in its smoother under surface, differently shaped and less coarsely

punctured thorax, the still more coarsely punctured head, the differently formed pro-
and mesosterna, &c.

The coarse close punctuation of the head is a marked character of 7. puncticeps ;

the ventral segments 1-3 in the male are not impressed and pubescent in the middle
as in the allied species.

30. Tarpela tropicalis. (Tab. XIII. fig. 10, ¢.)

Oblong ovate, rather convex, metallic bronzy green, sometimes bluish, shining. Head rather short and convex,
somewhat coarsely, moderately closely, and subequally punctured, the epistoma not clearly defined, the
usual dividing groove represented at most by a shallow fovea in the middle, the antennary orbits scarcely
extended laterally and but little swollen; antenne stout, moderately long, reaching to about the middle of
the elytra in the male, widening a little outwardly, the penultimate joints subtriangular, the apical joint
much longer and stouter than the tenth in the male, piceous; prothorax rather broader than long,
convex, strongly margined, the margins narrowly grooved within, the sides slightly rounded about the
middle, straight or a little sinuous behind, and narrowing and feebly crenulate in front, the apex
rather deeply emarginate, the anterior angles produced in front and narrowly rounded, the base rather
strongly bisinuate, the basal fovez very deep, the hind angles subrectangular, the disc rarely with a
transverse sinuous impression before the base, the surface rather coarsely and somewhat closely punctured
(not quite so closely as the head), the punctures finer and more scattered at the sides and base ; elytra
rather long, strongly margined, the humeri moderately prominent, very slightly rounded at the
sides (almost subparallel), widest about the middle, deeply striate throughout, the striee somewhat coarsely
crenate-punctate towards the sides, much more finely so on the disc and at the apex, a row of coarse
irregular impressions on each side within the margins, the interstices a little convex and finely and
sparingly punctured; beneath brownish-piceous, shining, almost smooth, the flanks of the prothorax with

TARPELA. 305

rather coarse scattered impressions, the ventral segments 1-3 in the male finely and closely punctured and
pubescent along the middle; prosternum rather narrow, slightly grooved between the cox, declivous, the
apex scarcely raised.

Length 5-7 millim.; breadth 24-3 millim. (¢ 9.)

Hab. Guaremata, El Jicaro, Tocoy, Rio Maria Linda (Champion).

Seven examples. A small metallic bluish-green species somewhat resembling the
Cuban Nautes rufipes, All., but much smaller and with differently-formed head,
prosternum, &c. From Helops mutabilis, Waterh., from Jamaica, which it resembles
in size and colour, it will be known by the head being more convex and not nearly so
distinctly impressed in front, the less prominent anterior angles of the thorax, the more
finely punctured elytral strie, &c.

31. Tarpela subvittata. (Tab. XIII. fig. 11 ¢.)

Oblong ovate, subparallel, moderately convex, bright bronze, with greenish and cupreous reflections, shining.
Head transversely impressed in front, the epistoma broadly and shallowly emarginate, coarsely and closely
punctured, the punctures a little more crowded in the centre of the intraocular space and here and there
obliquely or longitudinally confluent ; antennz moderately long, reaching to about one third of the length
of the elytra in the male, joints 8-10 narrow, piceous; prothorax transverse, rather convex, strongly
margined, the margins grooved within, the sides rounded about the middle, feebly sinuate and scarcely
narrowing behind, and obliquely narrowing in front, the anterior angles broadly but not very strongly
produced and broadly rounded, the hind angles subrectangular, the base feebly bisinuate and strongly
margined, the basal foveee moderately deep, the disc transversely flattened before the base, the surface
closely, moderately coarsely, and subequally punctured, a narrow ill-defined longitudinal space on
the basal half of the disc impunctate ; scutellum large, subtriangular; elytra long, wider than the pro-
thorax, subparallel, the humeri a little prominent in front, narrowly and regularly striate throughout,
the strie finely and somewhat distantly punctured on the disc, a little more coarsely so towards the
sides, the interstices flat on the disc, feebly convex outwardly, and very distinctly, somewhat closely,
and comparatively not very finely punctured, the sutural and marginal interspaces and a broad ill-defined
oblique stripe from the shoulder (chiefly confined to the third, fourth, and fifth interspaces) to the apex
more or less tinged with metallic green ; beneath shining, dark bronze, the sides and the last two ventral
segments with bluish reflections, sparingly punctured, the ventral segments 1-3 also coarsely longitudin-
ally wrinkled and in the male with a very closely punctured pubescent space along the middle, the
metasternum with scattered coarse impressions at the sides; legs dark bronze, the tibie coarsely and
roughly punctured ; prosternum slightly declivous, strongly acuminately produced, the apex a little raised ;
mesosternum declivous, broad, moderately deeply excavate.

Length 9-10: millim.; breadth 32-42 millim. (¢ 2.)

Hab. Guatemaa, El Tumbador 2500 feet (Champion).

Two examples. This insect somewhat resembles 7. cupreo-viridis, but is readily
distinguished by the punctate-striate elytra and very distinctly punctured interstices,
and also by the rougher tibiz and the differently formed pro- and mesosterna; from
T. puncticeps it is separated by its larger size, longer and more parallel elytra, more
distinctly punctured interstices, rougher tibie, shorter antenne, more coarsely punc-
tured metasternum, and other characters.

T. subvittata is one of several allied species found by myself in the same locality on
the Guatemalan Pacific slope. These insects were all captured in the vicinity of the

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1887. ORR

306 HETEROMERA.

coffee-plantations of the district of El Tumbador, in the department of San Marcos,
and on the margins of the forest.

32. Tarpela depressa. (Tab. XIII. fig. 12, ¢ -)

Oblong ovate, subparallel, depressed, brownish-piceous, with a very slight bronzy tint, shining. Head short,
shallowly transversely impressed in front, the impression widening out into a deepish fovea on each side,
rather finely and somewhat sparingly punctured; antenne rather stout, widening a little outwardly, about
reaching to one third of the length of the elytra (in the male), joints 8-10 subtriangular, the apical joint
longer than the tenth, dark ferruginous ; prothorax broad, transverse, very strongly margined, the margins
slightly expanded and narrowly grooved within, the sides a little rounded, narrowing in front, and very
slightly narrowing and sinuate (almost straight) behind, the anterior angles broadly and rather strongly
produced and rounded, the apex broadly but not very deeply emarginate, the hind angles subrectangular,
the base bisinuate and strongly margined, the basal fovese deep, the disc broadly and shallowly trans-
versely impressed behind, the surface finely, equally, and sparingly punctured ; elytra very little wider
than the prothorax, strongly margined, subparallel, rather long, the humeri a little prominent in front,
deeply striate throughout, the stris very finely and shallowly punctured, the interstices feebly convex and
very minutely and sparingly punctured ; legs dark ferruginous, the tibie rather closely punctured ; beneath
very sparingly and finely punctured, the flanks of the prothorax almost smooth ; ventral segments 1-3 in
the male broadly flattened and concave in the middle, the space enclosed exceedingly closely and minutely
punctured and pubescent ; prosternum smooth, a little declivous, subacuminately and convexly produced,
the apex armed with a small rounded prominence; mesosternum declivous, moderately excavate.

Length 84 millim.; breadth 33 millim. (¢.)

Hab. Mexico, Yucatan (coll. Oberthir).

One example. This species is remarkable on account of its flattened subparallel
form; broad, strongly margined, and finely punctured thorax ; deep and finely punctured
elytral striee ; comparatively smooth under surface ; and male characters.

The unique example has been kindly lent me by M. Réné Oberthiir ; it is labelled
“ Helops depressus, Pilate.”

38. Tarpela crassipes. (Tab. XIII. fig. 13, ¢.)

Oblong ovate, subparallel, rather convex, dark bronze, with greenish and cupreous tints, moderately shining.
Head coarsely and moderately closely punctured, the punctures here and there longitudinally confluent,
the epistoma broadly but feebly emarginate in front and limited behind by a very shallow groove; antennz
rather stout, comparatively short, piceous ; prothorax broad, transverse, rather convex, the reflexed lateral
margins prominent and narrowly grooved within, the sides somewhat rounded, slightly narrowing and
very feebly sinuate behind and more distinctly narrowing in front, the apex somewhat deeply emarginate,
the anterior angles produced in front and rather broadly rounded, the base strongly bisinuate, the basal
fovee rather shallow, the disc a little raised anteriorly, the hind angles somewhat obtuse, the surface rather
coarsely, distantly, and very unequally punctured, the sides and base distinctly suffused with metallic green ;
elytra moderately long, subparallel, a little flattened on the disc, the humeri rounded but a little prominent
in front, with rows of coarse rounded rather distantly placed impressions, the impressions still coarser
and here and there confluent towards the sides, the interstices flat and sparingly but distinctly punctured,
bronzy-cupreous, each with three ill-defined longitudinal metallic greenish stripes from the base to the
apex ; legs rather short, stout (the tarsi especially), coarsely punctured ; beneath brownish-piceous, more
shining, sparingly but rather coarsely punctured, the flanks of the prothorax shallowly strigose ; pro-
sternum declivous and rounded off behind ; mesosternum broad, declivous, rather deeply excavate.

Length 73 millim. ; breadth 3$ millim. (¢.)

TARPELA. 307
Hab. Mexico, La Parada (Saiié).

One example. This species may be known by its subparallel and rather convex form ;
the thorax broad and strongly margined; the elytra with rows of coarse rounded
impressions and ill-defined metallic green and cupreous stripes (coloured and sculptured
much as in Helops sumptuosus) ; the stout legs, the tarsi especially stout and with the
three basal joints dilated in the male, &c. I provisionally include T. crassipes in this
genus ; it cannot be satisfactorily compared with any of the other species here recorded.

** Anterior tarsi with the three basal joints narrower, narrowing outwardly and slightly
or not at all wider in the male.

34. Tarpela erifera.
Tarpela erifera, Allard, Rév. Hélopides, L’Abeille, xiv. p.7 & 47'; Mittheil. der schweiz. ent. Ges.
v. pp. 57 & 2397.

Hab. Mexico (coll. Chevrolat }2, Sallé, Oberthiir), Jalapa, Matamoros Izucar ({Hége) ;
Panama, Volcan de Chiriqui (Champion).

Numerous examples of both sexes of an insect collected by Herr Hage agree fairly
well with the description of this species. These specimens vary in length from 74-124
millim. and in breadth from 3-6 millim. The thorax varies in shape, the sides in
some examples being angulate or crenulate, in others almost rounded; it also varies
considerably in the intensity of the punctuation—sometimes fine and scattered (as
. described by Allard), sometimes coarser and closer.

T. erifera will be known by its bright bronzy colour; the strongly margined thorax,
the margins a little extended and broadly grooved within ; the elytra long and subparallel,
with rows of more or less coarse elongate impressions, the interstices flat and distinctly
punctured. The single example (female) from the State of Panama differs from those
from Mexico in having the anterior angles of the thorax slightly deflexed ; but I do
not think it represents more than a variety of 7. wrifera.

35. Tarpela allardi. (Tab. XIII. fig. 14.)

Elongate ovate, moderately convex, subparallel, dark bronze, with a slight cupreous or golden tint, slightly
shining. Head rather long, shallowly transversely impressed in front, closely and moderately coarsely
punctured; prothorax transversely subquadrate, rather depressed, somewhat broadly expanded at the
sides, if anything widest before the middle, strongly margined, the margins broadly and shallowly grooved
within, the sides very feebly crenulate, a little narrowed in front and almost straight behind, the anterior
angles broadly but not strongly produced and broadly rounded, the apex feebly emarginate, the hind angles
subrectangular, the base rather feebly bisinuate, the basal foveze small but deep, the disc with a long
sinuous transverse impression some distance before the base, the surface finely, shallowly, and sparingly
punctured; elytra comparatively very long, feebly convex, wider than the prothorax, subparallel, the
humeri a little prominent in front, with rows of rather coarse more or less longitudinal distantly placed
impressions, the impressions towards the sides and apex deeper and there placed in shallow oblong fovew,
which are often more or less metallic golden-cupreous within, the interstices flat on the disc, somewhat

2RR2

308 HETEROMERA.

irregular towards the sides, and shallowly, rather closely, and very distinctly punctured ; beneath more
shining, blackish-bronze, shallowly, sparingly, and finely punctured, the ventral segments 1-3 also longi-
tudinally wrinkled, the flanks of the prothorax irregularly strigose and with some scattered punctures ;
legs sparingly punctured ; prosternum subdeclivous, the apex produced into a short conical tubercle ;
mesosternum rather deeply excavate.

Length 143-15 millim.; breadth 6 millim. (?.)

Hab. Mexico (coll. Oberthiir), Misantla (Hége).

Two female examples. This insect is closely allied to 7. wrifera; it will be known
by its less shining surface, larger size, and relatively longer elytra, and also by the
thorax being less narrowed in front and transversely subquadrate in shape, and more
finely and shallowly punctured. The example kindly lent me by M. Réné Oberthir
differs only from the other from Misantla in being of a lighter and more golden tint.

36. Tarpela amabilis. (Tab. XIII. fig. 15,9.)

Oblong ovate, rather convex, metallic bronzy-green, shining. Head short, coarsely, closely, and subequally
punctured, the punctures more or less longitudinally confluent, the epistoma short and limited behind by
a very shallow groove, the intraocular space (in one example) witha shallow fovea in the middle;
antenne long, reaching to the middle of the elytra in the male, joints 9 and 10 long and subtriangular,
piceous ; prothorax subquadrate, rather broader than long, widest at or a little before the middle, com-
paratively strongly margined, the margins narrowly grooved within, the sides very slightly narrowed and
sinuate behind the middle and slightly narrowing and feebly crenulate in front, the anterior angles a
little prominent and narrowly rounded, the apex shallowly emarginate, the base very feebly bisinuate
(almost straight), the basal fovee shallow, the hind angles subrectangular, the disc impressed in the
middle just before the base, the surface closely and somewhat coarsely punctured (more finely so than
the head), the punctures here and there longitudinally confluent on the disc and more scattered at the
sides and base, a narrow ill-defined longitudinal space on the posterior third of the disc impunctate ; elytra
considerably broader than the prothorax (especially in the female), a little flattened on the disc, rather
long, subparallel in the male, very slightly widening from the base and widest a little beyond the middle
in the female, strongly margined, the humeri rounded and very slightly produced in front, deeply striate,
the striz somewhat finely, shallowly, and not very closely punctured (the punctures longitudinal in form)
on the disc, more coarsely so outwardly, a row of coarse irregular impressions on each side within the
lateral margins, the interstices flat or feebly convex, very minutely and distantly punctured, with traces of
shallow transverse wrinkles (in one example) and each with a row of small distantly placed smooth
conical elevations, the elevations almost obsolete from the basal half of the disc and most prominent at the
apex and towards the sides, the suture, sides, and apical third more or less bronze in tint; beneath dark
reddish-brown, shining, the metasternum very finely and very sparingly, the ventral segments much more
distinctly, punctured, the latter also longitudinally wrinkled, the ventral segments 1-3 in the male closely —
and finely punctured and pubescent along the middle, the flanks of the prothorax finely and closely
strigose ; prosternum coarsely punctured, declivous, the apex not raised ; mesosternum narrow, declivous,
very feebly excavate ; legs rather long, the tibize coarsely roughened and punctured, the femora very much
smoother and only punctured at the apex.

Length 53-87 millim.; breadth 24-4 millim. (¢ 9.)

Hab. Guatemata, San Gerénimo (Champion).

Two examples. This species will be readily known by the rows of small distantly-

placed smooth conical elevations on each interstice at the apex and sides of the
elytra.

TARPELA. 309

37. Tarpela silvicola, (Tab. XIII. fig. 16, 3.)

Oblong ovate, rather convex, subparallel, very shining, metallic greenish-bronze, with green or cupreous
reflections. Head broad, shallowly transversely impressed in front, somewhat coarsely and rather closely
punctured, the punctures here and there confluent on each side before the eyes, the intraocular space and
the vertex smoother, the epistoma truncate in front; antenne long, about reaching to the middle of the
elytra in the male, joints 8-10 long and subtriangular though scarcely wider than those preceding, the
apical joint one third longer than the tenth, dark reddish-ferruginous; prothorax transverse, rather
convex, strongly margined, the margins somewhat broadly grooved within, the sides a little rounded
about the middle, slightly narrowing and sinuate before the prominent subrectangular hind angles, and
obliquely converging in front, the apex broadly but not deeply emarginate, the anterior angles broadly
rounded, the base rather strongly bisinuate and very distinctly margined, the basal fover shallow, the
disc with a long shallow transverse sinuous depression just before the. base, the surface moderately finely,
diffusely, and subequally punctured (much more finely so than the head), the sides and a central line on the
disc often suffused with golden-cupreous ; elytra long, subparallel, rather convex, finely and lightly striate,
the strie with fine rather distantly placed elongate impressions, the impressions rather coarser and deeper
towards the sides, the interstices flat and almost impunctate, a narrow oblique stripe from the shoulder to
the apex and sometimes one or two of the outer interstices more or less suffused with golden-cupreous ; legs
dark brownish-bronze, the tarsi lighter, the tibis rather closely punctured ; anterior tarsi in the male with
the three basal joints a little dilated but decreasing in width outwardly, the fourth joint rather long ;
beneath greenish-bronze, shining, very sparingly and finely punctured, the ventral segments 1-3 more
closely punctured in the middle, longitudinally wrinkled, and similar in both sexes, the flanks of the
prothorax finely strigose ; prosternum subhorizontal, subparallel, broadly and strongly produced, rather
coarsely punctured at the sides; mesosternum declivous, rather deeply excavate.

Length 8-113 millim. ; breadth 43-54 millim. (d 9.)

Hab. Guatemata, Cerro Zunil 4000 to 5000 feet (Champion).

Many examples. This species somewhat resembles T. cupreo-viridis ; it differs in
having the upper surface much more shining; the elytra finely striate and more
finely punctured, and with the interstices flatter; the prosternum broader, &c. From
Nautes tinctus it is separated by its narrower form, longer and differently shaped
thorax, more coarsely punctured head, differently shaped mesosternum, &c. In the
male of 7. silvicola the anterior tarsi, though a little dilated, have the three basal
joints decreasing in width outwardly ; and the ventral surface similar in both sexes.

33. Tarpela fragilicornis. (Tab. XIII. fig. 17, ¢.)

Oblong ovate, subparallel, depressed, bright greenish-bronze. Head short, strongly transversely impressed in
: front, moderately coarsely and somewhat closely punctured ; antennze long and slender, reaching beyond the
middle of the elytra (in the male), the joints comparatively very long, the apical one about one half as long
again as the tenth, and slightly curved, fusco-ferruginous ; prothorax broad, transverse, a little expanded at
the sides, the lateral margins thin and not reflexed and rather broadly grooved within, the sides rounded,
widest in the middle, and almost equally narrowing before and behind (very little narrower at the apex
than at the base), the anterior angles rounded and not prominent, the apex broadly and feebly emargi-
nate, the hind angles very obtuse and almost rounded, the base feebly bisinuate but straight in the middle,
the basal foves: very shallow, the disc flattened behind and shallowly impressed in the middle before the
base, the surface finely and sparingly punctured, the punctures rather coarser at the sides and base ;
scutellum broad, transverse ; elytra long, subparallel, strongly margined, the humeri broadly rounded
but a little prominent in front, finely and lightly punctate-striate, the punctures closely placed, a little
coarser outwardly, and finer and shallower behind, the interstices quite flat and very minutely punctured ;
legs, including the tarsi, very long and slender, the tibie rather sparingly punctured, the femora much
smoother; beneath not very shining, comparatively smooth, the ventral surface very shallowly and finely

310 HETEROMERA.

longitudinally wrinkled and minutely punctured in the middle, the sides of the metasternum and side-pieces:
with scattered shallow coarsish impressions, the flanks of the prothorax, very finely and shallowly strigose ;.
prosternum strongly declivous, the apex unarmed ; mesosternum declivous, feebly excavate.

Length 10 millim.; breadth 4 millim. (<¢.)

Hab. Mexico, Juquila (Sal/é).

One example. This species is remarkable on account of the very long and slender
legs and antenne (the latter with very long apical joint, in the male), the expanded.
sides of the thorax, the closely punctured fine elytral stria, subparallel depressed form,
&c.; it approaches 7. silvicola.

39. Tarpela suturalis.

Oblong ovate, rather convex, subparallel, very shining, colour variable—more or less metallic bronze-green, with
cupreous and golden reflections. Head broad, somewhat coarsely and not very closely punctured, the:
vertex smoother, bronzy-green, the anterior half and the intraocular space golden, the epistoma rather
long, truncate in front, and limited behind by a very shallow groove; antenne long, reaching to the
middle of the elytra in the male, joints 8-10 long and narrow, ferruginous; prothorax strongly trans-
verse, rather convex, strongly margined, the margins a little expanded and somewhat broadly grooved
within, the sides rounded at the middle, narrowing and rather strongly sinuate behind, and obliquely
converging in front, the apex rather deeply emarginate, the anterior angles broadly rounded and.
prominent, the base bisinuate and very distinctly margined, the basal fovez shallow, the hind angles
subrectangular, the disc with a shallow transverse sinuous impression before the base, the surface
sparingly and finely punctured (in one example much smoother), colour—in one example golden-green,
with the sides and a narrow longitudinal space on the disc cupreous, in the other light bronzy-cupreous,.
with a narrow line on the disc, and the base and apex more or less tinged with golden or green; elytra
moderately long, rather convex, subparallel, rather deeply punctate-striate, the punctures elongate and
distantly placed towards the sides, and finer and shallower on the disc and at the apex, the interstices slightly
convex, flatter on the disc, and almost impunctate, colour metallic green, the sides, the base narrowly, the
suture, and a narrow oblique stripe from the shoulder to the apex, golden-cupreous ; legs dark ferruginous,
the femora darker; anterior tarsi in the male with the three basal joints a little dilated, but distinctly
decreasing in width outwardly ; beneath brownish-bronze, with a slight golden tint, shining, very sparingly
and finely punctured, the ventral segments 1-3 much more distinctly so, and also longitudinally wrinkled,
and similar in both sexes, the flanks of the prothorax rather coarsely strigose; prosternum declivous, the
apex produced and a little raised; mesosternum moderately excavate.

Length 9 millim.; breadth 4-43 millim. (¢ @.)

Hab. Guaremaia, El Tumbador (Champion).

Two examples. This insect is allied to 7’ stlvicola; the thorax, however, is broader,
and more distinctly sinuate at the sides behind the middle; the elytra shorter, less.
parallel, more deeply striate, the strie more coarsely punctured towards the sides, the
interstices slightly convex; the prosternum differently formed, &c. In the structure of
the anterior tarsi, and the sculpture of the ventral surface, the male agrees with the
same sex of 7. silvicola.

40. Tarpela cisteliformis. (Tab. XIII. fig. 18, ¢.)
Tarpela cisteliformis, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 57 & 2417.

Hab. Mexico (coll. Haag+); Guatemaa, Capetillo (Champion).

TARPELA. 311

Five examples, four males and one female, of an insect collected by myself at
Capetillo are apparently referable to this species. No mention is made by Allard of
the structure of the antenne, and the specimen described is presumably a female. The
Guatemalan insect, however,. agrees so nearly with Allard’s description of TZ. cisteli-
formis in its general characters, that I have little doubt it belongs to that species.
I give a fresh description from Guatemalan specimens :—

Oblong ovate, subparallel, depressed, bright metallic bronze, with slight greenish and cupreous tints. Head
short, very deeply transversely impressed in front, rather coarsely and somewhat densely punctured ;
antenne in the male moderately stout, very long, reaching to the middle of the elytra, the third joint
nearly twice as long as the fourth, the ninth and tenth joints shorter than the eighth and equal, and the
apical joint curved, and more than twice as long as the tenth, in the female shorter and more slender, and
the apical joint not very much longer than the tenth, fusco-ferruginous or piceous ; prothorax short, strongly
transverse, narrowly margined, the sides a little rounded about the middle, narrowing and feebly sinuate
in front, and feebly sinuate and almost straight behind, the anterior angles rounded and not very
prominent, the apex feebly emarginate (truncate when viewed from above), the hind angles subrectangular,
the base feebly bisinuate, somewhat produced in the middle, the basal fovez distinctly impressed, the disc
broadly transversely impressed before the base, the sides punctured like the head, the dise very much more
sparingly and finely'so, a more or less distinct rounded impression on each side about the middle
just within the lateral margin; elytra much wider than the prothorax, subparallel, long, a little
constricted at the sides before the apex, the humeri rounded and a little prominent in front, with rows of
fine, shallow, closely placed punctures, the punctures still finer and almost obsolete towards the apex, and
coarser and more scattered and more elongate in form towards the sides, the apical margin impressed on each
side within, the interstices quite flat and very minutely and sparingly punctured, the second and eighth
carinate just before the apex, the suture and strie often tinted with cupreous; legs long and slender,
sparingly punctured, dark bronze ; beneath shining, greenish-bronze, the ventral surface very finely and
sparingly punctured and shallowly and irregularly wrinkled, and.similarly sculptured in both sexes ;
metasternum long, smooth, the sides narrowly and more or less distinctly, and the side-pieces shallowly
and somewhat coarsely, punctured; flanks of the prothorax coarsely and closely punctured ; prosternum
almost smooth, very slightly declivous, convexly .and acuminately produced ; mesosternum moderately
deeply excavate.

Length 104-12 millim.; breadth 4-43 millim. (d 9 -)

This distinct species bears a certain resemblance to the North-American Helops
(Lamperos) micans, Fabr. ; it will be known by the long and curved apical joint of the
antenne in the male (suggestive of the genus Statira), the short head and thorax,
depressed form, and other characters noted above. ‘T. cisteliformis and the following
species may possibly form the types of a new genus.

41. Tarpela totonicapamensis. (Tab. XIII. fig. 19, 2.)

Resembling 7’. cisteliformis, and differing as follows :—Narrower and more elongate; the head more finely,
more sparingly, and more irregularly punctured, broadly transversely impressed in front, a U-shaped
shallow impression between the eyes; the antenne more slender, the apical joint (in the female) one third
longer than the tenth, piceous; the prothorax narrower, almost as broad in front as at the base, the sides
more constricted and more strongly sinuate behind the middle, and a little rounded anteriorly, the anterior
angles more deflexed and broadly rounded, the hind angles more prominent and directed outwards, the
transverse depression on the disc behind very deeply impressed laterally, the surface much more finely
and sparingly punctured; the elytra narrower, relatively very much longer, the punctures finer and
shallower and not so closely placed, and still finer and almost obsolete beyond the middle, the interstices
quite flat, impunctate, and the second carinate just before the apex, the apex impressed on each side

312 HETEROMERA.

within ; the legs longer and more slender; beneath smoother, the side-pieces of the metasternum more
finely punctured, the flanks of the prothorax very finely and shallowly wrinkled within and smooth with-
out; the prosternum rounded off and declivous behind, the apex unarmed; the mesosternum feebly

excavate.
Length 12 millim. (of the elytra 9 millim.); breadth 43 millim. (¢ )

Hab. Guatemata, Totonicapam 10,000 feet (Champion).

One example only of this exceedingly distinct species was obtained.

42. Tarpela docilis. (Tab. XIII. fig. 20.)

Oblong ovate, narrow, rather convex, subparallel, dark bronze, shining. Head short, coarsely, irregularly,
and somewhat closely punctured, rather deeply transversely impressed in front; antenne rather short,
the penultimate joints widening a little outwardly, the apical joint in the male rather longer than the
tenth; prothorax narrow, broader than long, strongly but narrowly margined, widest at the base, the
sides a little sinuous but not narrowing behind, and slightly narrowing and rounded in front, the
anterior angles broadly rounded and not prominent, and a little deflexed, the apex almost straight, the
hind angles rectangular, the base feebly bisinuate and a little produced in the middle, the basal foveve
moderately deep, a rather deep (or shallow) sinuous transverse impression on the disc before the base, and
a shallow rounded impression on each side near the middle of the lateral margin, the surface coarsely and
closely punctured, the punctures more scattered at the sides and base ; elytra wider than the prothorax,
long, subparallel to far beyond the middle, the humeri rounded but a little prominent in front, with rows
of shallow rather distantly placed rounded or oblong impressions, the impressions towards the sides placed
in very shallow larger excavations, and becoming much finer towards the apex, the interstices flat and
finely and sparingly punctured; legs rather short, the tibie somewhat closely punctured, the femora
almost smooth; beneath shining, very shallowly, finely, and sparingly punctured, the metasternum with
a few coarse scattered punctures at the sides, the flanks of the prothorax coarsely punctured, the ventral
segments similarly sculptured, and the apical one hairy in the middle, in both sexes; prosternum strongly
declivous behind, the apex unarmed ; mesosternum declivous, very feebly excavate.

Length 73 millim.; breadth 3-33 millim. (¢ 2.)

Hab. Mexico, Jalapa (Hoge), Cordova (Sallé).

Two examples, apparently male and female. This species is not very nearly allied
to any other noticed here; it perhaps comes nearest to 7. cisteliformis, from which it
is separated by its smaller size, shorter antenne and legs, more parallel form, closely
punctured and less transverse thorax (the anterior angles of which are broadly rounded),
declivous prosternum, &c. The immature specimen (female) from Cordova has the
head and thorax less coarsely punctured, the basal impression on the disc of the latter
much shallower, and punctures of the elytral series more closely placed.

HELOPS.

Helops, Fabricius, Syst. Ent. p. 257 (1775); Lacordaire, Gen. Col. v. p. 450 (1859); Horn, Rev.
Ten. of Am. north of Mexico, p. 391 (1870) (pars); Trans. Am. Ent. Soc. viii. p. 152 (1880)
(pars) (nec Allard).

Coscinopter, Allard, Rév. Hélopides, L’Abeille, xiv. p. 4 (1876) (nomen preoc.).

Coscinoptiliz, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 16, 33, & 127 (1880).

Stenomax, Allard, Rév. Hélopides, L’ Abeille, xiv. p. 4; Mittheil. der schweiz. ent. Ges. v. pp. 17,
33, & 180.

HELOPS. 313

Diastixus, Allard, Rév. Hélopides, L’Abeille, xiv. p. 5; Mittheil. der schweiz. ent. Ges. v. pp. 17,
43, & 174*,

For the purposes of this work I retain the genus Helops solely for certain apterous
species, most of which belong to Coscinoptilix, Stenomas, or Diastivus as defined by
Allard. I do not feel justified in adopting any of these generic names for the Central-
American species. To do so it would be necessary to make others, not only in Helops,
but in Tarpela and Nautes, and this, in the present state of our knowledge of the
“Helopides” of tropical South America (a single species only of the group has been
described as yet, Nautes ovatus, F. Bates, from Colombia), I am not prepared to do.
In Allard’s ‘ Révision’ no mention is made of the presence or absence of wings, the
presence of which often denotes more prominent humeri, a longer metasternum, and
a longer scutellum.

a. Epipleure narrowly extending to the apex of the elytra.

1. Helops gracilicornis. (Tab. XIII. fig. 21, 2.)
Coscinopter gracilicornis, Allard, Rév. Hélopides, L’Abeille, xiv. pp. 15, 52°.
Coscinoptilix gracilicornis, Allard, Mittheil. der schweiz. ent. Ges. v. pp. 33, 127°.

Hab. Muxico? (colls. Oberthiir, F. Bates, Mus. Brit.), Orizaba (mus. Belg.!), Jacale
(Sallé).

9. Helops cavifrons. (Tab. XIII. fig. 22, 2.)

Elongate ovate, moderately convex, metallic bronze, the prothorax more shining and of a greenish-golden tint.
Head very sparingly and finely punctured, the epistoma truncate in front and limited behind by a deep,
broad, transverse furrow ; antennee (female) rather long and slender, joints 9 and 10 subequal, and scarcely
widening outwardly, the apical joint longer than the tenth, ferruginous; prothorax rather narrow, as long
as broad, moderately longitudinally convex, widest before the middle, very finely and narrowly margined,
the sides feebly sinuate, and very slightly narrowing behind and scarcely narrowing in front, the apex
straight (when viewed from above), the anterior angles rounded and deflexed, the base broadly truncate
in the middle and rather obliquely cut off at the sides, the basal foveze deep, a shallow transverse impres-
sion just within the basal margin in the middle, the hind angles rather obtuse, the surface sparingly and
finely punctured, the punctures a little coarser and closer at the sides; elytra long, widest beyond the
middle, slightly rounded at the sides, obliquely narrowing at the shoulders, the latter rounded, the base
truncate, with rows of shallow, irregular, distantly placed, rounded or elongate impressions, the impressions
fine on the disc, and shallower and still finer at the sides and apex, the interstices flat and almost impunc-
tate, the apices a little produced, impressed within, and separately rounded ; legs slender, ferruginous ;
beneath slightly shining, brownish-zneous, very shallowly and finely wrinkled, and indistinctly punctured,
the flanks of the prothorax almost smooth ; prosternum strongly declivous.

Length 13} millim.; breadth 5 millim. (@.)

Hab. GuatEMata, Totonicapam 10,000 feet (Champion).

This species is allied to H. gracilicornis, but differs in having the head smoother ;
the thorax longer and narrower, more parallel-sided, very much more finely and

* The synonymy referring to the New-World species only is quoted.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1887. 2SS

314 HETEROMERA.

sparingly punctured, and very shining; and the elytra have rows of much finer and
shallower impressions.
The unique example before me is somewhat immature.

3. Helops longicornis.

Elongate ovate, moderately convex, brownish-bronze, rather shining. Head closely, unequally, and somewhat
coarsely punctured, the intraocular space with coarser and longitudinally confluent impressions, the
epistoma truncate in front and limited behind by a rather deep transverse groove ; antenne very long,
passing the middle of the elytra in the male, joints 9 and 10 scarcely wider than the preceding, the apical
joint in the male much longer than the tenth, and slightly curved, brownish-piceous ; prothorax nearly as
long as broad in the male, transverse in the female, moderately convex, very feebly margined, the sides
slightly rounded about the middle, obliquely but not strongly narrowing from a little before the middle to
the base, and very feebly sinuate and about equally narrowing in front, the apex straight (when viewed
from above), the anterior angles rounded and rather deflexed, the base almost straight, the basal foves
very shallow, the hind angles rather obtuse, the surface closely, rather coarsely, and somewhat unequally
punctured, the punctures rather more scattered on the disc, and closer, and here and there confluent
towards the sides; elytra long, somewhat depressed, gradually widening to some distance beyond the
middle, the base subtruncate, the humeri scarcely prominent, narrowly striate, the striz closely and
somewhat coarsely punctured, the interstices a little convex, and finely, shallowly, and sparingly punc-
tured; legs brownish-piceous, the tarsi ferruginous, the anterior tarsi a little dilated in the male; beneath
brownish-piceous, the coxe reddish-ferruginous, slightly shining, coarsely (the flanks of the prothorax
still more coarsely and subconfluently) punctured ; the ventral surface very much smoother, and finely and
shallowly punctured and wrinkled, the last ventral segment hairy in the middle in both sexes, the
segments 1-3 in the male more finely and closely punctured along the centre ; prosternum strongly
declivous ; mesosternum simple.

Length 10-11 millim.; breadth 4-43 millim. (3 @.)

Hab. Mexico, Ciudad in Durango 8100 feet (Forrer).

Three examples. This insect is allied to the North-American H. cisteloides, Germ.
(placed by Allard in his genus Coscinoptilix), but less convex, the head differently
sculptured, the elytra punctate-striate, the prosternum more strongly declivous, the
femora beneath and the last ventral segment not so thickly clothed with hair, &c. In
one of the examples before me the elytral interstices are almost flat, in the other

two convex.

4. Helops exsculptus. (Tab. XIII. fig. 23, ¢ .)

Elongate ovate, moderately convex, dark brownish-bronze, usually very slightly tinged with green or cupreous,
slightly shining. Head closely, coarsely, and irregularly punctured, the epistoma broadly but feebly
emarginate in front and limited behind by a shallow or rather deep transverse impression ; antenns
rather long and stout, the apical joint in the male longer than the tenth ; prothorax rather longer than
broad, not very convex, narrowly but very distinctly margined, widest anteriorly, the sides slightly
narrowed and sinuous behind the middle and sometimes sinuous before the apex, the apex almost straight
(if viewed from above), the anterior angles rounded but rather prominent, the base subtruncate, the
basal foves rather deep, the hind angles subrectangular, the disc raised in the middle in front, shallowly
transversely impressed before the base, and often with indications of a fine shallow central groove, the
surface closely and somewhat coarsely punctured, the punctures a little more scattered on the disc, but
closer and here and there subconfluent at the sides; elytra long, rather wider than the prothorax, a little
flattened on the disc, but subvertical at the sides from the seventh interstice, subtruncate at the base, the
sides straight in front and widening and a little rounded beyond the middle, the humeri rather prominent,

HELOPS. | | 315

with rows of more or less coarse, distantly placed, longitudinal, irregular impressions, the impressions
becoming coarser and here and there confluent outwardly and more widely separate towards the apex, the
interstices almost flat on the disc, a little convex and irregularly wrinkled and here and there transversely
confluent outwardly, shallowly but very distinctly punctured, the seventh more or less distinctly (rarely
obsoletely) costate from the shoulder nearly to the apex and there confluent with the slightly raised third,
the fifth also slightly costate ; beneath dark reddish-brown, a little shining, pubescent, somewhat closely and
rather coarsely punctured and wrinkled, the flanks of the prothorax rather coarsely confluently punctured ;
prosternum smooth, declivous; legs and antennz reddish-brown or piceous, the basal joint of the anterior

tarsi broader in the male.

Length 74-134 millim.; breadth 3-5 millim. (d 2.)

Hab. Guaremata, Totonicapam 8500 to 10,500 feet (Champion), Volcan de Acate-
nango 10,000 to 12,000 feet (Sarg).

This species will readily be known from H. rugiceps by the thorax being wider
towards the apex, and with the disc raised in the middle in front and the anterior
angles more prominent ; the elytra flatter on the disc, and with the seventh interstice
(and the third and fifth also posteriorly) costate, &c.

I met with this insect in numbers beneath loose pine-bark on the summit of the
cordillera above Totonicapam; Mr. Sarg’s specimens were obtained at a similar
lofty elevation on the Volcan de Acatenango, one of the peaks of the Volcan de
Fuego.

5. Helops rugiceps. (Tab. XIII. fig. 24, 3.)

Elongate ovate, rather convex, brownish-piceous, the sides of the prothorax anteriorly and the base and suture
of the elytra suffused with reddish-brown, slightly shining. Head coarsely, equally, and confluently
punctured, very broadly and shallowly transversely impressed in front, the intraocular space slightly
flattened, the epistoma shallowly arcuate emarginate in front; antenne (male) long, comparatively
stout, joints 9 and 10 subtriangular, the apical joint longer than the tenth, ferruginous; prothorax
narrow, longer than broad, feebly convex, rather strongly margined, widest before the middle, the sides
slightly narrowed and sinuous behind and very little narrowed in front, the apex feebly bisinuate (almost
straight if viewed from above), the anterior angles rather broadly rounded and a little prominent, the
base subtruncate, the basal fovex shallow, the hind angles acute, the surface closely, somewhat coarsely,
and equally punctured, a narrow longitudinal space on the disc impunctate ; elytra long, narrow, slightly
flattened on the disc, the humeri a little produced in front, with rows of rounded or elongate rather coarse
impressions, the impressions here and there confluent though scarcely becoming coarser outwardly and
finer and shallower at the apex, the interstices feebly convex outwardly and very distinctly and compara-
tively coarsely punctured; legs long, brownish-ferruginous ; tarsi stout, the three basal joints of the
anterior pair about equal in width in the male; beneath reddish-brown, rather shining, closely, finely,
and subequally punctured, the flanks of the prothorax more coarsely and confluently so; prosternum
declivous, the apex with a small raised point.

Length 103 millim. ; breadth 33 millim. (¢-)
Hab. Guatemana, Capetillo (Champion).

One example. A long and narrow insect somewhat resembling the Californian
H. angustus, Lec. (a winged species placed by Allard in his subgenus Omaleis) ; it
cannot, however, be satisfactorily compared therewith.

288 2

316 HETEROMERA.

b. Epipleure abbreviated at the last ventral suture.

6. Helops inanis.
Tarpela inanis, Allard, Mittheil. der schweiz. ent. Ges. v. p. 262".

Hab. Mexico (colls. F. Bates and Haag +).

Two examples (male and female) of this species are contained in Mr. F. Bates's
collection ; one of these is labelled as having been found by Mr. Flohr near the city of
Mexico.

7. Helops funebris.

Elongate ovate, moderately convex, brownish-piceous, rather dull. Head broad, closely and somewhat coarsely,
the intraocular space more sparingly and more irregularly, punctured, the epistoma long, broadly and but
feebly emarginate in front, and limited behind by a very shallow groove; antenne (female) rather short
and stout; prothorax broad, transverse, strongly margined, the margins thickened, the sides slightly
rounded, almost equally narrowed at the base and apex, and distinctly sinuate immediately before the
base, the apex feebly emarginate (almost straight if viewed from above), the anterior angles broadly
rounded, the base very broadly produced in the middle (the central portion passing the hind angles) and
feebly sinuate on each side externally, the basal fovee: rather deep, the hind angles obliquely cut off behind
and slightly prominent, the disc with a strong transverse sinuous impression before the base, the surface
closely and somewhat coarsely punctured ; scutellum transverse, broad; elytra long, rather broad, not
very convex, flattened on the disc, gradually widening from the base to considerably beyond the middle,
rather strongly margined, the humeri rounded, with rows of fine, shallow, distantly placed, elongate
impressions, the impressions still finer and shallower towards the apex, the interstices perfectly flat
throughout, sparingly though very distinctly punctured, and with traces of fine obsolete transverse
wrinkles on the disc; beneath more shining, dark reddish-brown, somewhat coarsely punctured, the
flanks of the prothorax very coarsely wrinkled and punctured, the ventral surface also strongly longi-
tudinally wrinkled; prosternum gradually declivous, convexly produced, the apex armed with a smooth
rounded prominence; mesosternum broad, very broadly but shallowly excavate; legs stout, the femora
and tibie coarsely punctured.

Length 133 millim.; breadth 5% millim. ( 2.)

Hab. Muxico, Puebla (Sallé).

Oneexample. Allied to H. inanis, but broader, the thorax strongly transverse (about
as long as broad in ZH. ¢nanis), the scutellum larger and broader, the legs stouter, and
the femora, tibie, and under surface more coarsely punctured; the elytra sculptured
much as in that species.

8. Helops punctato-striatus.

Oblong ovate, moderately convex, rather broad, bronze-black, rather dull. Head closely, coarsely, and very
unequally punctured, the intraocular space with much coarser impressions (the impressions very irregular
and here and there longitudinally confluent) and somewhat flattened, the epistoma long, shallowly emar-
ginate in front, and limited behind by a broad and deep transverse groove, the eyes small; prothorax
large, transverse, comparatively very broad, moderately convex (more strongly so in front), narrowly
margined (the margins not impressed within), the sides broadly but very feebly sinuate emarginate just
before the middle, thence to the apex rounded and slightly narrowing, and obliquely narrowing behind,
the apex almost straight (if viewed from above), the anterior angles deflexed and very broadly rounded,
the base almost truncate, the hind angles obtuse, the basal fovez obsolete, the surface very closely and

HELOPS 317

coarsely punctured, the punctures rather more scattered on the disc ; scutellum very broad, transverse ;
elytra broad, a little flattened on the disc, the width of the widest part of the prothorax at the base, the
sides slightly rounded, the base distinctly grooved on each side for the reception of the hind angles of the
prothorax, the humeri swollen and directed a little outwards, with rows of very coarse elongate distantly
placed impressions, the impressions nearly equal in size throughout, the interstices almost flat and shallowly
though very distinctly punctured ; beneath (including the flanks of the prothorax) very coarsely punctured ;
prosternum declivous, the apex with a small raised point in the middle; legs short and very stout, the
femora and tibie very coarsely and closely punctured.
Length 12 millim.; breadth 53 millim.

Hab. Mexico (Sallé, ex coll. Sturm).

I have adopted the MS. name by which this insect is labelled in the Sallé collection.
H. punctato-striatus may be known by its broad, greatly developed, and closely and
coarsely punctured thorax, broad scutellum, prominent humeri, the rows of equal-sized
very coarse elongate impressions on the elytra, the short, stout, coarsely punctured
legs, &c.; it cannot be compared with any other species here recorded. The single
example before me is greatly mutilated, and without abdomen and antenne.

9. Helops pueblensis.

Oblong ovate, very convex, dark bronze, moderately shining. Head very closely and rather coarsely punctured,
the punctures more or less longitudinal in form and here and there obliquely or longitudinally confluent,
the eyes only feebly convex ; antennx (female) reaching to about the first fourth of the elytra, rather
slender; prothorax transverse, very feebly margined, the sides slightly rounded, widest in the middle, and
about equally narrowed towards the base and apex, the angles obtuse, the apex (if viewed from above)
and base almost straight, the base very obsoletely margined, the basal fovese shallow and indistinct, the
surface very closely and somewhat coarsely punctured, the punctures here and there longitudinally
confluent, and with a narrow irregular smooth longitudinal space on the middle of the disc; scutellum
large, very strongly transverse; elytra a little wider than the prothorax at the base, moderately long,
slightly rounded at the sides, the base sinuate on each side and grooved within for the reception of the hind
angles of the prothorax, the humeri rounded but prominent in front, with rows of moderately coarse elongate
closely placed impressions, the impressions here and there confluent, the interstices flat and sparingly but
very distinctly punctured, the third a little raised at the apex; beneath sparingly but rather coarsely
punctured, the ventral surface also strongly longitudinally wrinkled, the flanks of the prothorax closely
punctured, the punctures elongate in form and here and there confluent ; prosternum declivous.

Length 94 millim. ; breadth 43 millim. (@.)

Hab. Mextco, Matamoros Izucar in Puebla (Hége).

One example. From H. coxalis this species is separated by the thorax being less
rounded at the sides, less transverse, and very feebly margined, the margins not grooved
within; the elytra longer, with rows of coarse elongate impressions, the interstices
flat and distinctly punctured, &c. From the North-American H. ereus by the very
different sculpture of the flanks of the thorax, and the obtuse (not rectangular) hind
angles; the coarser elytral impressions, &c.

10. Helops coxalis. (Tab. XIII. fig. 25, ¢ .)

Oblong ovate, convex, prownish-bronze, with a slight golden tint, moderately shining. Head shallowly trans-
versely impressed in front, closely and coarsely punctured, the punctures obityuely or longitudinally

318 HETEROMERA.

confluent ; antenne moderately long, but little shorter in the female, very slightly widened outwardly,
the apical joint longer than the tenth, dark ferruginous ; prothorax broad, much wider than long, rather
strongly margined, the margins shallowly grooved within, the sides rounded, very slightly and obliquely
narrowing behind, and more distinctly narrowing in front, the anterior angles deflexed and rounded, the
apex arcuate emarginate (almost straight when viewed from above), the hind angles obtuse, the base
almost straight though a little emarginate in front of the scutellum, the basal fovez obsolete, the surface
coarsely, closely, and equally punctured (a little more finely so than the head), the punctures longitudinal in
form and here and there confluent ; scutellum strongly transverse ; elytra the width of or scarcely wider than
the prothorax at the base, rather short, a little rounded at the sides, widest in the middle, subtruncate at
the base, the humeri not prominent, regularly and somewhat deeply punctate-striate, the punctures
elongate, rather coarse, and closely placed, the interstices feebly convex and almost smooth, the apices
slightly impressed within and produced and divergent in the male; legs rather short, the femora com-
paratively smooth, the basal half of the latter fringed with hair beneath, the tibiee pubescent on their
inner edge; beneath slightly shining, somewhat coarsely and closely punctured, the ventral surface
also strongly longitudinally wrinkled, the flanks of the prothorax coarsely punctured within and shal-
lowly strigose without; prosternum declivous, the apex convex; mesosternum very narrow, almost
unimpressed.
Length 73-93 millim.; breadth 43 millim. (¢ 2.)

Hab. Mexico, Morelia in Michoacan (Hége).

Two examples. This insect should be placed near H. wrews, Germ. (referred by
Allard to his genus Stenomax), from which it will be readily known by the less rugosely
punctured head and thorax; the latter broader and more transverse, more strongly
margined, rounded at the sides, and with obtuse anterior angles; the elytra less
widened posteriorly, with more coarsely punctured strize and rather convex interstices ;
the flanks of the prothorax beneath not coarsely strigose, &c. H. cowalis may,
however, be known from its allies by the very narrow and almost unimpressed meso-
sternum.

11. Helops suavis.

Ovate, convex, bronze-brown, with a slight golden tint, shining. Head short, broad, shallowly transversely
impressed in front, coarsely, irregularly, and somewhat sparingly punctured, the punctures here and there
longitudinal in form ; antenne long, still longer and passing the middle of the elytra in the male, very
slightly widening outwardly, the apical joint longer than the tenth, reddish-brown ; prothorax convex,
very broad, much wider than long, rather strongly margined, the sides rounded, a little narrowed and
sometimes feebly sinuate behind, and more distinctly narrowed in front, the anterior angles deflexed and
rounded, the apex arcuate emarginate (almost straight when viewed from above), the hind angles obtuse,
the base feebly bisinuate, straight in the middle, and very distinctly margined, the basal fovexe obsolete or
scarcely visible, the surface sparingly, shallowly, and somewhat finely punctured; scutellum strongly
transverse ; elytra short, the width of the prothorax at the base, widest in the middle, a little rounded at
the sides, subtruncate at the base, the humeri not very prominent, finely but deeply punctate-striate, the
punctures moderately coarse, oblong, and distantly placed, the interstices broad, nearly flat on the disc,
feebly convex outwardly, and almost smooth; legs reddish-brown, the tibie comparatively smooth ;
beneath shining, very sparingly, shallowly, and finely punctured, the first ventral segment usually more
coarsely so, the sides of the metasternum almost impunctate, the flanks of the prothorax very shallowly

strigose or smooth ; prosternum gradually declivous, somewhat convexly or subacuminately produced ;
mesosternum narrow, feebly excavate.

Length 53-8 millim. ; breadth 3-43 millim. (¢ 2.)
Hab. Mexico, Juquila (Sallé); Guaremaa (Sallé).

HELOPS. 319

Three examples, a male from Mexico, and a pair from Guatemala. This insect will
be known amongst its allies by the broad, short, rather strongly margined, and shallowly
and sparingly punctured thorax, the sides of which are more or less rounded and the
anterior angles not prominent; the long antenne ; the short convex elytra, &c. I can
suggest no very near ally to H. swavis, though, like the preceding species, it approaches
the North-American H. wreus, Germ., in some of its characters. The Mexican example
has the head and the sides of the thorax rather more coarsely punctured, the thoracic
margins shallowly grooved within, and the under surface smoother than in the Guate-
malan exponents ; it agrees, however, perfectly in other respects.

12. Helops cupripennis.

Oblong ovate, convex, bright bronze, the elytra slightly cupreous in tint. Head very shallowly transversely
impressed in front, rather coarsely, irregularly, and somewhat sparingly punctured, the epistoma slightly
emarginate ; antenne (female) rather short, dark ferruginous; prothorax longitudinally convex, transverse,
rather strongly margined, the sides a little rounded about the middle, slightly narrowed and sinuate
behind, and more distinctly narrowed and sinuate in front, the anterior angles rounded but a little pro-
minent, the apex arcuate emarginate (almost straight when viewed from above), the hind angles obtuse,
the base almost straight, the basal foveze obsolete, the disc shallowly impressed before the base and with
an ill-defined smooth central line, the surface moderately coarsely and somewhat closely punctured ;
scutellum strongly transverse ; elytra distinctly wider than the prothorax at the base, moderately long,
somewhat ovate, strongly margined, the humeri rounded but a little prominent in front, with rows of mode-
rately coarse shallow elongate distantly placed impressions, the impressions much finer and shallower
towards the apex, the interstices quite flat and very sparingly, shallowly, and finely punctured; legs
rather short, the basal halves of the femora clothed with long hair beneath ; beneath, including the whole of
the metasternum, coarsely but sparingly punctured, the flanks of the prothorax more closely so, the ventral
surface more finely punctured in the middle and also strongly longitudinally wrinkled; prosternum
declivous, rather convex; mesosternum feebly impressed.

Length 8 millim.; breadth 4 millim. (@.)

Hab. Mexico, Parada (Sal/é).

One example. This insect also comes near H. wreus, Germ., but is separated from
that species (and the allied forms noticed here) by the elytra not being striate but with
rows of elongate impressions; the head and thorax smoother, &c. Compared with
H. coxalis and H. suavis the thorax is relatively narrower, the elytral interstices flatter,
the antennse shorter, &c.

18. Helops panamensis. (Tab. XIII. fig. 26, ¢ .)

Oblong ovate, moderately convex, bright golden-bronze. Head short, broad, rather deeply transversely impressed
in front, closely and somewhat coarsely punctured, the punctures here and there confluent, the epistoma
truncate in front; eyes large, rounded; antennz long, passing the middle of the elytra (in the male),
widening a little outwardly, joints 9 and 10 subtriangular, the apical joint oblong ovate and longer than
the tenth, ferruginous; prothorax broad, a little wider than long, strongly margined, the margins
shallowly grooved within, widest before the middle, the sides rounded anteriorly, narrowed and strongly
sinuate behind, and very slightly narrowing in front, the anterior angles deflexed, rounded, and not pro-
minent, the apex very feebly emarginate (almost straight if viewed from above), the hind angles rectangular,
the base feebly sinuate on each side and straight in the middle, the basal fovese long and deep, the surface
somewhat closely and rather coarsely punctured ; elytra a little wider than the prothorax, subtruncate at

320 HETEROMERA.

the base, ovate, widest in the middle, the humeri a little prominent in front, slightly flattened on the disc,
rather deeply striate, the strie with fine distantly placed oblong impressions, the interstices almost flat
and very minutely and sparingly punctured ; legs reddish-brown; beneath, including the flanks of the
prothorax, very sparingly and finely punctured ; prosternum a little declivous, subacuminately produced ;
mesosternum narrow, rather deeply excavate, the sides rounded off in front.’

Length 53 millim.; breadth 23 millim. (¢.)

Hab. Panama, Pefia Blanca 3000 feet (Champion).

One example. I can suggest no near ally to this pretty little distinct species, though
it somewhat resembles H. suavis; from this latter it is readily distinguished by its
‘shorter head, larger eyes, less convex form (more flattened on the disc), longer and
more strongly margined thorax, deep basal fovee, flatter elytral interstices, &c.

14. Helops sumptuosus. (Tab. XIII. fig. 27, 3.)

Diastizus sumptuosus, Allard, Rév. Hélopides, L’Abeille, xiv. p. 57'; Mittheil. der schweiz. ent.
Ges. v. pp. 44 and 184.7, |

Hab. Mexico (Bruck 12), Puebla (Sallé).

15. Helops punctiventris.

Oblong ovate, very convex, blackish-bronze, the elytra lighter in tint, rather dull. Head rather long, coarsely
and moderately closely punctured, the epistoma more closely punctured, greatly developed, shallowly
emarginate in front, and limited behind by a deep transverse groove, the intraocular space a little flattened,
the eyes narrow; antenne (female) short, stout, scarcely passing the base of the prothorax, scarcely
widening outwardly, piceous ; prothorax broader than long, strongly convex, scarcely perceptibly margined,
the sides moderately rounded, narrowing a little more in front than behind and almost imperceptibly
sinuate before the base, the apex rather deeply emarginate (nearly straight if viewed from above), the
anterior angles deflexed and a little prominent though obtuse, the base truncate, the basal fove quite
obsolete, the hind angles obtuse, the surface without impressions and coarsely and closely punctured, the
punctures a little more scattered on the posterior half of the disc; scutellum very broad, transverse ;
elytra moderately long, convex, widest about the middle, a little wider than the prothorax at the base, the
base nearly straight, the humeri rather obtuse, with rows of rather coarse, somewhat distantly placed,
elongate impressions, the interstices flat, shallowly and sparingly punctured on the disc and indistinctly so
at the sides and apex; beneath more shining, coarsely and sparingly punctured, the ventral surface also
strongly longitudinally wrinkled, the flanks of the prothorax very coarsely and closely punctured ; pro-

sternum declivous, the apex slightly transversely raised ; legs short, stout, very coarsely and closely
punctured.

Length 9 millim.; breadth 4 millim. (@.)
Hab. Muxico, Guanajuato (Sallé).

Two examples, both apparently females. This species is not very nearly allied to
any other recorded here; it somewhat resembles certain Old-World forms, e.g. the
Algerian H. heteromorphus, Luc. (placed by Allard in his genus Diastixus), &c.
H. punctiventris may be known by its longitudinally convex, very obsoletely margined
and coarsely and closely punctured thorax, convex elytra, coarsely punctured under

surface and legs (the femora more coarsely punctured than the tibize), short, stout
antenne and legs, &c.

TALANUS. 321

Group TALANIDES.

This group, the “Dignamptini” of Leconte and Horn [cf. Class. Col. N. Am. p. 385
(1883)], contains a single isolated genus, Talanus, Jacq.-Duval (= Dignamptus, Lec.),
and is peculiar to the New World.

TALANUS.

Talanus, De}. Cat. 3rd edit. p. 232 (1837); Jacquelin-Duval, in Sagra’s Hist. fisica polit. y nat. de
Cuba, vil., Ins. p. 66 (1856); French edit. p. 156 (1857) ; Gemminger and Harold, Cat. vu.
p. 2041 (1870); Maklin, Gifv. Finsk. Vetensk.-Soc. Férh. xx. p. 96 (1878).

Dignamptus, Leconte, Proc. Amer. Phil. Soc. xvii. p. 421 (1877).

A genus containing many closely-allied species and characteristic of the forest-region
of Tropical America, but extending northwards to the south-eastern United States.
Eight species have been described—two from the Antilles, two from Florida, and four
from Tropical South America. Zalanus is remarkable on account of the peculiar form
of the ligula, a character which appears to have escaped the observation of previous
authors.

In the five species I have examined (TZ. neotropicalis, T. lecontei, T. laticeps,
T. subexaratus, and T. apterus) the thin and almost membranous ligula is very
greatly extended on each side laterally, and abruptly incurved, raised, and acuminate
at the outer ends, the latter being armed with two or three coarse long projecting sete,
the front margin with finer and shorter hairs; the abrupt incurving of the outer ends
and the concave shape allowing the two basal joints of the labial palpi to be received
within in repose (Tab. XIV. fig. 4): this structure is very different from that of any
species of “ Helopides,” or indeed of any other member of the Tenebrionide, known
to me.

The outer lobe of the maxilla is very large and broad, and furnished with a dense
fringe of very long and coarse hairs in front, the inner lobe being quite small
(Tab. XIV. fig. 44). The mandibles are slightly bifid (very distinctly so in 7. apterus)
at the apex, and have on their outer side a membranous extension.

The female is furnished with an ovipositor enclosed between two long vertical sheaths
(often extruded at time of death) placed close together, much as in Acropteron, Saziches,
&c.); the eggs are doubtless laid in the crevices of the bark of decaying trees.

The different species, as noted by Leconte, bear a certain resemblance to the smaller
forms of Languriide, and several appear to be very variable in size; they are found by
beating the decaying leaves and branches of fallen trees.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1887. QTT

322 HETEROMERA.

1. Species winged.

A. Antenne comparatively short, the ninth and tenth joints more or less transverse.

a. Elytra with rows of impressions placed upon shallow or obsolete strie ; the interstices
flat (in T. interstitialis convex at the apex, and the striw in consequence deeper
behind).

1. Talanus neotropicalis. (Tab. XIV. fig. 1, ¢.)

Elongate, subcylindrical, brownish-castaneous or castaneous, with a slight eneous tinge, shining. Head rather
closely and somewhat coarsely punctured, deeply transversely impressed in front; antenne stout, about
reaching to the base of the prothorax, widening outwardly, joints 8-10 wider than 7 and equal in width,
9 and 10 transverse, the apical joint ovate and fully twice as long as and rather wider than 10, black, the
three or four basal joints and the extreme apex ferruginous; prothorax very convex, the sides a little
constricted behind, the disc shallowly transversely impressed before the base, the hind angles subrectangular,
the surface very coarsely and somewhat closely punctured, an oblique slightly impressed space on each
side some distance before the base more sparingly punctured; elytra comparatively very long, parallel,
with rows of rather coarse rounded impressions placed upon almost obsolete striw, the impressions
becoming coarser and a little more distant one from another towards the base and much finer and closer
towards the apex, the interstices flat and almost smooth ; legs brownish-piceous, the femora often more or
less castaneous; anterior and intermediate tibize each with a triangular tooth, and the posterior tibiee with
two small teeth (the hinder one of which is sometimes obsolete) on the inner side some distance before the
apex, in the male; beneath shining, very finely and sparingly, the sides of the metasternum and side
pieces and the flanks of the prothorax very coarsely, punctured.

Length 8-9 millim. (¢ 9.)

Hab. Guatemata (colls. F. Bates, Brit. Mus.), El Reposo, San Gerénimo (Champion) ;
Costa Rica (Sallé, coll. F. Bates)—Braziu, Rio Janeiro.

Numerous examples, ‘This species is closely allied to the Cuban 7. cribrarius, Jacq.
Duv., but larger, longer, and more or less castaneous in colour; the thorax rather
broader; the elytra relatively longer, and with the punctures not quite so closely placed
and finer and shallower posteriorly ; the antenne stouter, &c.; the tibie are similarly
armed in the male, but with the teeth rather finer.

A specimen from Rio Janeiro in Mr. F. Bates’s collection appears to be conspecific
with our insect.

An example from San Gerdnimo is figured.

2. Talanus levipennis.

Allied to 7’, neotropicalis, and differing as follows :—the antenne not quite so stout, and with the apical joint
rather shorter; the head more finely punctured; the prothorax very much more finely, more shallowly,
and more sparingly punctured, and rather strongly obliquely impressed on each side some distance beyond
the middle, the sides & little constricted behind, the hind angles fine and acute; the elytra much shorter,
narrowing from the middle, and almost elongate-ovate in form (not parallel), with rows of very shallow
fine impressions, the impressions still finer towards the apex (not coarser towards the base, as in 7’. neo-
tropicalis), the interstices quite flat and almost smooth, and the humeri more rounded ; the legs smoother ;
the upper surface brownish-bronze in tint; the under surface as in 7’. neotropicalis. j

Length 8-8} millim. ( 9.)

TALANUS. 323

Hab. Guatemata, Las Mercedes, Cerro Zunil (Champion).

Four female examples. This insect is distinguished from its allies by the fine and

very lightly impressed elytral punctures, the punctures being shallower and finer than
in any other species of the genus known to me.

3. Talanus subopacus.

Elongate, subcylindrical, brownish-piceous or dark reddish-brown, rather dull. Head rather closely and finely

punctured, deeply transversely impressed in front; antenne as in 7’. neotropicalis ; prothorax coarsely and
very irregularly punctured, the sides broadly behind the middle (in one example with large smooth spaces)
and the base very much more sparingly so, the sides rather strongly sinuate behind, the hind angles acute
and directed outwards; elytra strongly convex, comparatively broad, long, subparallel to beyond the
middle, the scutellar region depressed, the humeri a little prominent in front, with. rows of rather fine
slightly elongate impressions, the impressions distant one from another and gradually becoming very much
finer and shallower towards the apex, the interstices quite flat and almost smooth; anterior and intermediate
tibie each with a sharp triangular tooth, and the posterior tibia with two or three small teeth on the
inner side some distance before the apex, in the male ; beneath very sparingly and finely, the flanks of the
prothorax very coarsely and closely, punctured, the sides of the metasternum and side pieces with scattered.
shallow coarse impressions.

Length 93-94 millim. (¢.)

Hab. Mexico, Jalapa (Hége); British Honpuras, R. Hondo (Blancaneauz).

Two male examples. This species can only be compared with 7’. levipennis, from

which it is separated by its larger size and subopaque surface; the thorax is more
coarsely punctured, and with much more acute hind angles; and the elytra are broader,
longer, and more parallel, and with the punctures coarser, more elongate, and more

distant one from another.

4. Talanus lecontei.

Elongate, subcylindrical, varying in colour from dark brownish-castaneous to castaneous, with a slight bronzy

tint, shining. Head closely and moderately finely punctured, deeply transversely impressed in front ;
antenne stout, reaching to a little beyond the base of the prothorax, joint 7 much wider than 6 and sub-
transverse, joints 8-10 wider than 7, almost equal in width and transverse, the apical joint ovate and
half as long again as the tenth, piceous, the three or four basal joints and the apex ferruginous, sometimes
entirely ferruginous ; prothorax a little narrowed and sinuate behind, the hind angles rectangular, the
surface coarsely and rather closely punctured, the dise with a shallow transverse impression some distance
before the base, the impression extending more or less distinctly on each side to the lateral margin; elytra
long, subparallel, with rows of coarse slightly elongate impressions placed upon almost obsolete striee, the
impressions somewhat closely placed and becoming gradually finer towards the apex, the interstices flat
and exceedingly minutely punctured ; legs varying in colour from piceous to ferruginous ; the tibie in the
male each with a sharp triangular tooth on the inner side some distance before the apex; beneath very
sparingly and minutely, the flanks of the prothorax and the metasternum narrowly at the sides, and the
side pieces very coarsely, punctured.

Length 43-64 millim. (¢ 2.)

Hab. Mexico, Vera Cruz (Sallé), Jalapa, Cordova, Teapa in Tabasco (Hége) ; Britisy

Honpvuras, Belize, R. Hondo, R. Sarstoon (Blancaneaux) ; GUATEMALA, Panzos, San Juan
in Vera Paz, Chiacam, Cahabon (Champion).

2TT 2

a24 HETEROMERA.

Var. Smaller, narrower, and more parallel, the tooth on the tibie in the male smaller.
Length 43-5 millim. (¢ 2.)

Hab. Mexico, Cordova, Jalapa (Hoge); Bririsa Hoypuras, R. Hondo (Blancaneaux).

Apparently a common insect in the above-mentioned localities. 7’. lecontet resembles
T. neotropicalis in general facies and in the sculpture of the upper surface, but is
only about half the size, and has the antenne relatively shorter, not so stout, and with
the apical joint less elongate ; the elytra shorter; the posterior tibiz in the male armed
with a single sharp tooth (like that on the other tibie), which is placed not very far from
the apex (in 7. neotropicalis the two comparatively smaller teeth are placed nearer the
middle).

The variety is connected with the type by intermediate forms, though at first sight
appearing distinct.

Dignamptus langurinus, Lec., from Florida, to judge from the description, is an ally
of this species.

T’. lecontei is apparently confined to the Atlantic slope.

5. Talanus interstitialis.

Allied to 7. lecontei, and differing as follows :—the prothorax more strongly sinuate at the sides behind; the
impressions on the apical portion of the elytra deeper (not becoming quite so fine or shallow behind as in
T’. leconter), the interstices slightly but distinctly convex towards the apex; the tibiw in the male (the
middle pair especially) more curved, each armed with a small triangular tooth on the inner side imme-
diately before the apex; the rest as in 7’. lecontet.

Length 5-63 millim. (¢ 9.)

Hab. Muxico, Tapachula in Chiapas (Hége); Guatemata, El Tumbador, El Reposo,
Paraiso, Las Mercedes, Pantaleon, Zapote (Champion).

Many specimens. This insect is sufficiently distinguished from 7. lecontei by the
different male characters (the tooth on the inner side of the tibize being placed much
nearer the apex), and the convex interstices at the apex of the elytra.

T. interstitialis seems to replace T. lecontei on the Pacific slope.

6. Talanus colombianus.
Talanus columbianus, Makl. Qifv. Finsk. Vetensk.-Soc. Férh. xx. p. 99}.
Var. Smaller, narrower, and more elongate ; the elytral impressions closer and deeper. (¢.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).—CotomBIa |,

Five examples, four males and one female, of a Talanus from the State of Panama
are apparently referable to this species. These specimens differ from 7’. lecontei as
follows :—The thorax is more rounded at the sides anteriorly, more constricted behind,
and the transverse impression before the base is deeper; and the elytra are less
parallel, and the impressions are shallower, finer, and not quite so closely placed.

TALANUS. 325

In general facies this insect perhaps more nearly resembles 7. levipennis; it will be
known, however, from that species by its much smaller size and narrower form; the
thorax differently shaped and more closely punctured, and with a deep basal impression ;
and the punctures on the basal half of the elytra more deeply impressed.

The small variety (a single immature male) is analogous to the small form of
L. lecontei. |

Our examples vary in size from 43-64 millim.

b. Elytra punctate-striate, the strie more distinctly impressed.

* Interstices more or less convex.

7. Talanus laticeps. (Tab. XIV. fig. 2, ¢.)

Elongate, rather depressed, dark ferruginous, the elytra a little lighter, moderately shining. Head broad, very
shallowly, finely, and sparingly punctured, the frontal transverse impression broad and moderately deep ;
eyes widely separated, strongly transversely convex and projecting laterally ; antenne moderately stout,
joints 8-10 wider than 7, equal in width and decreasing a little in length outwardly, the apical joint ovate
and about twice as long as the tenth, ferruginous ; prothorax very acutely margined, the sides strongly
narrowed and sinuate behind and rounded anteriorly, the hind angles subacute, the surface very coarsely
and closely punctured, the disc with a very deep transverse impression (not extending to the lateral
margins) before the base ; elytra rather broad, depressed on the disc, subparallel in their basal half, deeply
striate throughout, the striz with coarse elongate very closely placed impressions, the interstices convex
(still more strongly so at the sides and apex) and almost smooth; legs ferruginous, the tarsi beneath, and
the tibize on the inner side towards the apex, thickly clothed with fulvous hair; the anterior and inter-
mediate tibi each with a sharp triangular tooth some distance before the apex, and the posterior tibie
with three or four teeth in their apical third, on the inner side, in the male; beneath more shining,
rather sparingly but comparatively coarsely punctured, the sides (broadly) and the front of the metasternum
much more coarsely so, the flanks of the prothorax very coarsely punctured.

Length 7-8; millim. (<¢.)

Hab. Panama (coll. FP. Bates).

Two male examples. ‘This species is separated from all the others here recorded by
the very broad and comparatively smooth head; the transverse, very convex, widely
separated, and laterally projecting eyes ; the acutely margined and posteriorly constricted
thorax, with very deep basal impression ; the coarsely and deeply punctate-striate elytra,
with the interstices convex, and the disc flattened; the comparatively coarsely punc-
tured under surface; and the strongly pronounced male characters. The tarsi and
tibie are more thickly clothed with hair than in the allied forms, the hair on the
tibie almost hiding the teeth from view.

8. Talanus subexaratus.
Talanus subexaratus, Mak). Gifv. Finsk. Vetensk.-Soc. Foérh. xx. p. 102°.
Hab. Mexico, Tuxtla, Cordova (Sallé, Hoge), Jalapa, Tapachula in Chiapas (Hége) ;
British Honpuras, Belize, R. Hondo (Blancaneaux); Guatemata, El Tumbador, El

326 HETEROMERA.

Reposo, Zapote, Guatemala city, San Gerdnimo, San Juan in Vera Paz, Senahu,
Cahabon, Panzos, Teleman (Champion); Nicaragua, Chontales (Belt); Costa Rica
(Sallé); Panama, Bugaba, Volcan de Chiriqui, David, Tolé (Champion).—CoLomBia * ;
VENEZUELA; AMAZONS, Santarem.

This is the commonest and most widely distributed species of the genus in our region ;
it agrees sufficiently well with Miklin’s description! to be identified therewith. 7’. subex-
aratus will be known from T. lecontei and its allies by the elytra being shorter, broader,
less parallel, and comparatively very deeply and coarsely punctate-striate, the interstices
smooth and more or less convex (sometimes flatter on the basal half of the disc); the
antenne about reaching to the base of the thorax, widening towards the apex, and
with the ninth and tenth joints more or less (in some specimens strongly) transverse.
Maklin’s description of this (and also of his other) species is based upon very insuffi-
cient material. The long series of upwards of seventy examples before me vary greatly
in size, colour, and sculpture, and apparently, at first sight, represent several species ;
but as the different forms were collected together in several localities, and are more
or less connected one with another, I prefer to regard them as representing one very
variable species.

In addition to the rufo-ferruginous variety « (common to several other species of the
genus), noticed by Maklin}, I here indicate one other :-—

Var. B. Elytra rather longer, the striz not so deeply impressed, the punctures still coarser and more scattered
and more elongate in form.

Hab. Panama, Volcan de Chiriqui (Champion). Two examples (¢ @ ).

In some few examples the inner side of the posterior tibize of the male is finely and
irregularly serrate towards the apex, instead of being armed with a small triangular
tooth, as is usually the case. ‘The hind angles of the thorax are usually rectangular,
occasionally acute. Our specimens vary in size from 5-74 millim. 7. humilis, Makl.,
from Colombia, to judge from the description, may possibly be a small form of this
variable insect.

9. Talanus guatemalensis, (Tab. XIV. fig. 3, 3.)

Elongate, convex, brownish-piceous, the elytra neous in tint, shining. Head closely and coarsely punctured,
the transverse frontal impression deep; antenne reaching to a little beyond the base of the prothorax
joints 8-10 wider than 7 and about equal in width, the tenth transverse, the apical joint ovate and
nearly twice as long as the preceding, piceous, with the basal joints ferruginous, or entirely ferruginous ;
prothorax coarsely and somewhat closely punctured, more sparingly so on the disc and towards the base.
the sides a little narrowed and sinuate behind, the hind angles rectangular or subacute, a transyerc
impression extending to the lateral margins some little distance before the base ; elytra comparatively

rather short, convex, somewhat ovate in form, widest in the middle, distinctly punctate-striate, the

impressions rather fine, elongate, coarser towards the sides, and finer and shallower on the posteriie
half of the disc, the interstices flat (or nearly so) on the disc, a little convex outwardly and towards
the apex, and almost smooth; the tibie in the male each with a sharp triangular tooth (that on the

TALANUS. 327

intermediate pair the longest) on the inner side some distance before the apex ; beneath sparingly and
very finely, the flanks of the prothorax very coarsely, punctured.
Length 43-6 millim. (¢ 2.)

Hab. Guatemata, Cerro Zunil, Las Mercedes (Champion).

Six examples. Allied to 7. ewnetpennis, from which it is separated by the more
ovate and more convex elytra, and the interstices convex towards the apex (in
T. eneipennis they are flat throughout) ; the flanks of the prothorax more sparingly but
still more coarsely punctured; and the metasternum almost without coarse impressions
at the sides.

** Interstices flat.

10. Talanus ater.

Elongate, subcylindrical, black, with a very slight bronzy tint, shining. Head closely and rather finely punc-
tured, deeply transversely impressed in front; antenne moderately stout, joints 8-10 wider than 7 and
equal in width, 9 and 10 transverse, the apical joint nearly twice as long as the tenth and somewhat
bluntly rounded at the apex, black ; prothorax very slightly sinuate at the sides behind the middle, the
hind angles acute and directed outwards, the surface coarsely and somewhat closely punctured, more
sparingly so at the sides behind, a shallow transverse impression on the disc before the base, the impression
obliquely extending on each side to the lateral margin ; elytra moderately long, subparallel in their basal
half, finely and very lightly striate, the striz with fine, slightly elongate, closely placed impressions, the
impressions becoming coarser towards the base and shallower towards the apex, the sutural stria
(except at the base) and the fifth and sixth strie in their basal fourth more deeply impressed, the inter-
stices flat and almost smooth; legs comparatively smooth, shining, black; beneath very finely and
sparingly, the flanks of the prothorax very coarsely, punctured, the sides of the metasternum and side
pieces with coarse impressions.

Length 63; millim. (9.)
Hab. Panama, Bugaba (Champion).

One female example. This species is distinguished from all the others of the genus
here recorded by the finely and lightly striate elytra, the strie finely and shallowly
punctured ; and also by its shining black colour.

11. Talanus zneipennis.

Elongate, subcylindrical, brownish-bronze, the elytra seneous in tint, shining. Head, antenna, and prothorax
much as in 7’. guatemalensis; elytra subparallel to beyond the middle, lightly but distinctly striate, the
strie with rather fine, closely placed, elongate impressions, the impressions coarser towards the base and
shallower towards the apex, the interstices flat and almost smooth; the male tibiz and under surface as

in 7. guatemalensis.
Length 5-53 millim. (d 9.)

Hab. Mexico, Tuxtla (Sallé); British Honpuras, Belize (Blancaneauz).
Three examples. The neous tint, flat interstices, and more lightly and finely

punctate-striate elytra sufficiently distinguish this species from T. subexaratus; the
above-mentioned differences and the rather narrower thorax separate it from 7. guate-

malensis.

328 HETEROMERA.

B. Antenne longer and more slender, the ninth and tenth joints longer than broad.

12. Talanus longicornis.

Moderately elongate, convex, varying in colour from piceous to ferruginous, shining. Head coarsely and rather
closely punctured, the transverse frontal impression usually deep; antenne slender, widening very little
outwardly, comparatively long, passing considerably beyond the base of the prothorax, joints 7-10 subtri-
angular in form and longer than broad, the apical joint ovate and about half as long again as the tenth,
ferruginous; prothorax coarsely, irregularly, and somewhat closely punctured, the sides but little
narrowed behind (in some examples nearly straight), the hind angles more or less acute ; elytra convex,
subparallel in their basal half, widest in the middle, deeply striate, the strie with elongate, moderately
coarse, rather closely placed impressions, the impressions coarser towards the sides and finer and shallower
towards the apex, the interstices feebly convex (or almost flat) on the disc, more strongly so towards the
sides and apex, and almost smooth; the anterior and intermediate tibia each with a sharp triangular
tooth some distance before the apex, and the posterior tibie serrate in their outer half, on the inner side,
in the male; beneath almost smooth, the ventral surface very finely, shallowly, longitudinally wrinkled,
the sides of the metasternum and the side pieces with coarse impressions, the flanks of the prothorax
very coarsely but rather sparingly punctured.

Length 5-73 millim. (d 2.)

Hab. Britis Honpuras, R. Hondo (Blancaneaux); Guatemaua, San Juan in Vera

Paz (Champion); Nicaragua, Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui
(Champion). —

This insect, like several of the allied species, varies considerably in size; it will be
recognized amongst its winged allies by the slender ferruginous antenne (in this
respect resembling 7. apterus, though with these organs rather shorter), the penulti-
mate joints of which are subtriangular and much longer than broad. The elytra are
sculptured much as in 7’, swbevaratus, but with the striz less coarsely punctured.

2. Species apterous ; antenne long and slender, the penultimate joints longer than
broad ; elytra punctate-striate.

13. Talanus apterus. (Tab. XIV. figg. 4,3; 4a, labium; 46, maxilla and
maxillary palpus.)

Elongate ovate, very convex, bronze-black, shining, Head sparingly but coarsely punctured, the epistoma
much smoother, very deeply transversely impressed in front; antennz long, extending far beyond the base
of the prothorax, slender, gradually widening outwardly, joints 6-10 subtriangular, 8-10 equal in width
but decreasing a little in length outwardly, the apical joint ovate and about half as long again as the
tenth, light ferruginous (the outer joints in one example a little infuscate); prothorax strongly rounded
at the sides anteriorly, narrowed and sinuate behind, the hind angles rectangular, the surface very coarsely,
irregularly, and somewhat sparingly punctured, a shallow oblique impression on each side (occasionally
connected by a shallow transverse impression on the disc) some distance behind the middle; elytra com-
paratively short, ovate, almost gibbous, broadly truncate at the base, more bronzy in tint than the
prothorax, narrowly but deeply striate from the base to the apex, the stria finely crenate-punctate on the
disc and rather more coarsely so at the sides, the interstices feebly convex on the disc and strongly so at
the sides and apex, smooth; legs smooth, brownish-piceous, the coxe, the base of the femora, the outer
half of the tibiz, and the tarsi ferruginous ; anterior and intermediate tibiee each with a sharp triangular
tooth, and the posterior tibie: with three or four very small teeth, on the inner side some distance before

the apex, in the male; beneath almost smooth, the ventral surface very minutely punctured along the

TALANUS.—PYANISIA. 329

middle, the flanks of the prothorax with a few scattered very shallow impressions; metasternum very
short ; intercoxal process rounded ; body apterous.
Length 63-72 millim. (¢ 2.)
Hab, GuateMaa, Senahu and San Juan in Vera Paz (Champion); Panama, Volcan de
Chiriqui (Champion).

Numerous examples. In the colour and structure of the antenne this insect

resembles 7’. longicornis, but is readily separated from that species by the ovate and

almost gibbous elytra (the sides of which are not abruptly narrowed immediately before

the base as in the winged forms), the smoother under surface, absence of wings, &c. ‘The

two examples from the State of Panama have the elytra castaneous in colour, and the

thorax not quite so coarsely punctured; both, however, appear to be a little immature.
We figure a male example from Senahu.

Group AMARYGMIDES.

This group is represented in the New World by a single genus, Pyanisia. With
the “ Amarygmides” we commence Lacordaire’s second great division, the “ Otido-
génes,” of the Tenebrionide ; in this and the following group the sides of the front
above the point of insertion of the antenne (the antennary orbits) are raised above the
level of the head and form an oblique ridge.

PYANISIA.

Pyanisia, Castelnau, Hist. Nat. Ins. Col. ii. p. 235 (1840) ; Lacordaire, Gen. Col. v. p. 476 (1859).
Cymathotes, Blanchard, Hist. Nat. Ins. 11. p. 33 (1845).
Cymatothes, De}. Cat. 3rd edit. p. 230; Solier, Studi Entom. i. p. 178, t. 6. figg. 1-5 (1848).

A Tropical-American genus ranging from Brazil to Northern Mexico, and also
inhabiting the Antilles *; it now contains eleven described species, four of which are
peculiar to our region. ‘These insects are found beneath loose bark or about fungoid
growths on decaying trees, often in gloomy places in the forest; the spotted species
resemble various Erotylide inhabiting the same district.

In the vertically-inclined head Pyanisia approaches Talanus.

1. Base of the prothorax very strongly bisinuate.
a. Upper surface maculated.

1. Pyanisia undata.
Helops undatus, Fabr. Ent. Syst. i. p. 122° Oliv. Ent. iii. 58, p. 11, t. 2. f. 4”.
Pyanisia undata, Casteln. Hist. Nat. Ins. Col. ii. p. 235°.

* Hoplonyx uniformis, C. O. Waterh, (Trans. Ent. Soc. Lond. 1878, p. 306), from Jamaica, is a Pyanisia.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1887. 2U0U

330 HETEROMERA.

Hab. Mexico, Tuxtla (Sallé); Britis Hoxpuras, Belize, R. Sarstoon (Blancaneauz) ;
GuatemaLa, Cahabon, Lanquin, Panzos (Champion); NIcaRAGua, Chontales (Belt,
Janson) ; Panama (coll. F. Bates), Bugaba (Champion).—CotomB1a ; VENEZUELA; GUIANA,
Cayenne!23; Peru; AMAzONS; BRAZIL.

A very widely distributed insect, ranging almost over the entire forest-region of
Tropical America; it appears to chiefly inhabit the low country, though sometimes
ascending as high as from 2000 to 3000 feet.

b. Upper surface dull black.

2. Pyanisia tristis.

Pyanisia tristis, Casteln. Hist. Nat. Ins. Col. ii. p. 236°.

Cymatothes unicolor, Sol. Studi Entom. i. p. 182’.

? Cymatothes tristis (Casteln.), Jacq.-Duval, in Sagra’s Hist. fisica polit. y nat. de Cuba, vii. Ins.
p. 64°. ,

Cymatothes lugubris, Dej. Cat. 3rd edit. p. 230%.

Hab. Muxico!?34, Ventanas (Forrer), Cordova, Tuxtla (Sallé), Jalapa (Hoge,
Morrison), Las Vigas, Misantla, Tampico, Zapotlan, Tapachula in Chiapas (Hége) ;
British Honpvras, Belize, R. Hondo, R. Sarstoon (Blancaneaux); GUATEMALA, Yzabal
(Sallé), San Juan in Vera Paz, Cubilguitz, San Joaquin, San Gerdnimo, El Reposo,
Zapote (Champion); Nicaraaua, Chontales (Belt, Janson); Panama, San Feliz, 'Tolé,
(Champion).—Cvsa °.

A common insect throughout our region, though apparently not extending south
of the Isthmus of Panama. The two examples from the State of Panama have the
elytral interstices perfectly flat.

2. Base of the prothorax broadly and feebly arcuate.
Upper surface dull black.

3. Pyanisia opaca.
Cymatothes opacus, Sol. Studi Entom. i. p. 180, t. 6. f1".
Cymatothes coarctatus, Sol. loc. cit. p. 181°.

Hab. Mexico? (coll. F. Bates), Pinos Altos in Chihuahua (Buchan-Hepburn),
Ventanas (Forrer), Ciudad in Durango (Forrer, Hoge), Refugio in Durango, Las Vigas
(Hoge), Jalapa (Hége, Morrison), San Andres Chalchicomula, Oaxaca, Chiapas (Sad/é),
Mochitlan in Guerrero (Baron).

This insect is generally distributed and not uncommon in Mexico, extending as
far north as the States of Durango and Chihuahua. In the large series of examples
(120) before me a great deal of variation is to be found, and I am unable to distin-
guish more than one species. Cymatothes coarctatus, Sol., was, I have little doubt,

PYANISIA. 331

based upon a variety of the same species *. The large number of specimens collected
by Herr Hoge at Las Vigas connect the various forms. Examples from Chihuahua
and Durango are rather more elongate and depressed, and with still more prominent
humeri: these agree with the description of Cymatothes opacus.

4. Pyanisia longicollis. (Tab. XIV. fig. 5.)

Oblong ovate, depressed, dull black. Head very closely, shallowly, and somewhat finely punctured ; antennee
with joints 8-10 rather longer than broad, piceous or ferruginous ; prothorax about as long as broad, as
wide as or rather wider in front than at the base, the sides a little rounded about the middle, narrowing
thence to the base, very slightly narrowed in front, and sometimes a little sinuate immediately before the
obtuse hind angles, the anterior angles rounded, the base broadly and feebly arcuate, straight in the
middle, the surface finely and rather sparingly, but very distinctly, punctured ; scutellum strongly trans-
verse ; elytra moderately long, depressed on the disc, ovate in form and rather abruptly narrowed towards
the base, the humeri a little swollen and strongly and subacutely produced in front, with rows of compa-
ratively coarse rather shallow impressions, the impressions placed upon shallow almost obsolete striz, the
interstices flat on the disc, feebly convex towards the sides and apex, and sparingly and very evidently
punctured ; beneath more shining, rather coarsely and somewhat closely, the flanks of the prothorax very
sparingly, punctured ; prosternum declivous, grooved in the middle between the cox, the apex broadly
produced and armed in the middle with a stout conical prominence. |

Length 11-13 millim.; breadth 43-53 millim. (¢ @.)

Hab. Guatemata, Totonicapam 8500 to 10,500 feet, slopes of the Volcan de Fuego
above Duefias 6500 feet (Champion).

Numerous examples. P. longicollis is separated from P. opaca by the thorax being
longer and narrower, and rather less rounded at the sides ; the elytra more abruptly
‘narrowed at the base and with the humeri still more acutely produced and projecting a
little outwardly, and substriate, the punctures of the striz coarser. The single
specimen from Duefas is rather shorter in form, and has the humeri not quite so

prominent; it, no doubt, represents a local variety of the same species.
é

5. Pyanisia fumosa.
Pyanisia fumosa, F. Bates in litt.

Oblong ovate, comparatively short, strongly convex, dull black. Head very shallowly and closely punctured ;
antenne with joints 8-10 rather longer than broad, piceous, the five outer joints often ferruginous ;
prothorax rather broader than long, strongly transversely convex, the sides rounded and about equally
narrowed before and behind the middle, the angles but little prominent, the base broadly and feebly
arcuate, straight in the middle, the surface smooth; scutellum triangular; elytra comparatively short,
ovate, convex, slightly depressed on the basal half of the disc, the humeri moderately produced in front,
very finely and lightly striate, the strie with fine elongate rather closely placed impressions (the impres-
sions still finer on the disc and becoming a little coarser towards the sides), the interstices flat on the
disc, slightly convex towards the sides and apex, and almost smooth ; beneath more shining, closely and
somewhat coarsely punctured, the flanks of the prothorax almost smooth ; prosternum declivous, grooved
in the middle between the cox, the apex scarcely raised.

Length 8-10 millim.; breadth 4-5 millim. (3 &.)

* Cymatothes coarctatus, Sol., is treated by Lacordaire and Gemminger and Harold as synonymous with
P. tristis, Casteln. From Solier’s description it appears to me to be a variety of P. opaca.

2UU 2

832 HETEROMERA.

Hab. Guaremata, slopes of the Volcan de Fuego above Capetillo and Duenas
6400 feet (Salvin, Champion), Calderas 6500 feet ( Champion). —

In its very convex and smooth thorax and lightly striate elytra P. fumosa resembles
F. tristis; the base of the thorax, however, is not strongly bisinuate as in that species,
but broadly and feebly arcuate as in P. opaca; the elytra are ovate in form and very
much shorter than in P. fristis, and also have more prominent humeri and the base
nearly straight.

This insect is only known to me as yet from the forest-clad slopes of the Volcan de
Fuego, where both Mr. Salvin and myself have found it not uncommonly.

Group STRONGYLIIDES.

This group contains several hundred species, inhabiting the warmer regions of both
the Old and the New World, though far more numerous in Tropical America than
elsewhere. The described genera are comparatively few in number, and the one genus
Strongylium at present contains more species than all the others put together. A
large number of species, chiefly Mexican, have already been described from our region
by Maklin and J. Thomson.

The secondary sexual organs of all the species I have examined are of the usual
character: the males have a simple pointed sheath, and the females a horizontal process
with a short style on each side at the apex.

These insects are exceedingly numerous in the forest-regions of Tropical America ;
they are especially abundant about the decaying timber in burnt forest-clearings, in
company with species of Erotylide; and are also frequently found upon leaves. The
earlier stages are no doubt passed in decaying wood or in the fungoid growths attached
thereto.

CUPHOTES.

Spheniscus, Kirby, Trans. Linn. Soc. xii. p. 421 (1818) ; Lacordaire, Gen. Col. v. p. 480 (1859) ;
J. Thomson, Monogr. in Arcana Natura, p.101 (1859), & Physis, ii. p. 180 (1867) (nomen
preocc.).

Twenty-eight species of this Tropical-American genus are enumerated in Gemminger
and Harold’s Catalogue (vii. pp. 2026 & 2027); at least one fourth of these names,
however, do not represent distinct species but varieties, or are referable to Pecilesthus
as here understood. Too much importance has in several cases (as in Strongylium)
been attached to colour differences, not only of the elytra but of the thorax and femora,
as a specific character—these differences being subject to variation in a long series of
examples. The punctuation of the thorax also varies in intensity in some species,
though not so much as in Strongylium. Cuphotes is represented in our region by six
species, one or two of which have a wide range.

CUPHOTES. 333

Certain species very closely resemble in colour and appearance some of the Erotylide
inhabiting the same districts, and in company with which they are often to be found.

The name Spheniscus having been long preoccupied for a well-known genus of Aves
(Brisson, 1760) I am compelled to substitute another.

1. The underside of the femora, the middle of the metasternum behind, and the last
ventral segment, thickly clothed with short silky hair, in the male.

1. Cuphotes corallifer.
Spheniscus corallifer, J. Thoms. Arcana Nat. p. 108, t. 10. f. 8%.

Hab. Panama, Volcan de Chiriqui (Champion).—Cotomsta 1.

A single immature individual captured by myself in Chiriqui seems referable to this
species. ‘This example has the elytral fosse arranged in longitudinal rows, a character
not mentioned by Thomson nor indicated in his figure. Specimens of a closely allied
form from Ega, perhaps not really distinct, are labelled in Mr. F. Bates’s collection
with a MS. name: these differ from our insect in their unicolorous black legs.

2. Cuphotes jansoni. (Tab. XIV. fig. 6, 2.)

Spheniscus jansoni, I’. Bates in litt.

Broad, very convex, black, shining. Head closely and irregularly, the vertex very sparingly and finely, punc-
tured, longitudinally impressed in the middle between the eyes; prothorax strongly transverse, the apex
deeply arcuate-emarginate, the base bisinuate, the anterior angles strongly produced and narrowly
rounded, the sides narrowing almost from the base and nearly straight, the disc with a very deep
irregular impression on each side a little behind the middle and a shallow transverse one in the centre
before the base, the surface finely and sparingly punctured; elytra very convex (searcely gibbous), the
dise gradually rounded off behind, the surface with scattered irregular rounded fossw, yellowish-testaceous,
with the base and suture very narrowly, a common median transverse band (more or less angulated on
its upper and lower edges) extending to the lateral margins, the apex rather broadly, and the fossa,
black, the interstices smooth ; beneath and the legs black, shining, finely and rather sparingly punctured.

Length 184-21 millim.; breadth 93-117 millim. (¢ 2.)

Hab. Nicaraceua, Chontales (Belt, Janson).

Numerous examples, varying only in the width of the median band of the elytra.
This insect is allied to C. sphacelata (Fabr.) (= adelpha, Thoms.) ; but is separated by
the elytra being more regularly convex and not gibbous (the posterior half of the disc
rounded off and not abruptly declivous), with smaller, more rounded, and more scattered
fosse, &c. A more nearly allied undescribed species from Chanchamayo, Peru, is
contained in Mr. F. Bates’s collection.

3. Cuphotes nigro-maculata.
Spheniscus nigro-maculatus, J. Thoms. Arcana Nat. p. 110, t. 11. f. 4°; Dej. Cat. 3rd edit. p. 229°.

Hab. Mexico? (Sallé+), Tutepec1, Misantla, Jalapa (Hége); Nicaraeua, Chontales

334 HETEROMERA.

(Janson) ; Costa Rica (coll. F. Bates), Cache, Volcan de Irazu (Rogers); Panama, Volcan
de Chiriqui 3000 feet (Champion). |

var.
Spheniscus marginicollis, J. Thoms. Arcana Nat. p. 110, t. 11. f.51; Dej. Cat. 8rd edit. p. 229°.

Hab. Mexico ! 2, Cordova (Sallé, Hége); GuatemMaua, Chacoj in Vera Paz (Champion).

The long series of specimens before me connect C. marginicollis with C. migro-
maculata: Iam quite unable to detect any difference except colour*. ‘The insect
varies considerably in the intensity of the maculation of the elytra, the spots sometimes
coalescing on the disc and forming a common transverse band. In the variety (in
addition to the sides of the thorax being more or less broadly marked with red) the
elytral spots are much larger, more scattered, and fewer in number; intermediate
examples are, however, found in Mexico. C. marginicollis seems not to extend south
of Guatemala, while C. nigro-maculata appears to be widely distributed. The specimens
before me vary in length from 13-214 millim., and in breadth from 6-11 millim.

4, Cuphotes unicolor. (Tab. XIV. fig.7,¢.)

Spheniscus unicolor, ¥. Bates in litt.

Rather short, very convex, unicolorous reddish-testaceous, the eyes, oral organs, antenne, the apical third of
the femora, the tibie, and tarsi, piceous or black, shining. Head almost smooth, the epistoma alone
finely and sparingly punctured, shallowly longitudinally impressed between the widely separated eyes ;
antenns with the penultimate joints about as long as broad; prothorax strongly transverse, the apex
feebly arcuate-emarginate, the base strongly bisinuate and somewhat deeply impressed within in the
middle and on each side, the anterior angles rounded and not prominent, the sides slightly rounded and
narrowing from a little before the base, the surface smooth and (except at the base) unimpressed; elytra
broad, rather short, very convex (scarcely gibbous), the disc gradually rounded off behind, very finely and
lightly striate-punctate, the interstices sparingly and very minutely punctured; legs comparatively long
and slender, the intermediate and hind tarsi long; beneath finely and sparingly punctured, the meta-
sternum almost smooth, sparingly pubescent, the middle of the metasternum thickly clothed with hair in
the male.

Length 15-17 millim.; breadth 8-10 millim. (¢ 2.)

Hab. Nicaracua, Chontales (Belt, Janson).

Numerous examples. This insect has no near known ally.

2. The underside of the femora thickly (the middle of the metasternum almost glabrous,

as in the female), and the apex of the last ventral segment sparingly, clothed with
hair, in the male.

5. Cuphotes cincta.
Helops cinctus, Oliv. Ent. ii. 58, p. 18, t. 2. £6"; Lac. Gen. Col. v. p. 481, nota 2?; J. Thoms.
Arcana Nat. p. 111°.

* Thomson (op. cit.) describes the elytra as “ gibbous” in C. nagro-maculata and “very convex” in C. mar-
ginicollis: the examples before me bridge over these differences.

CUPHOTES.—PCCILESTHUS. 390

Spheniscus cruciatus, De}. Cat. 8rd edit. p. 2294.
Spheniscus 4-maculatus, Erichs. Consp. Col. Peruan. in Archiv fir Naturg. 1847, part 1, p. 120°;
J. Thoms. Arcana Nat. p. 111, t. 11. f. 6°.
Spheniscus 4-plagiatus, Kirsch, Berl. ent. Zeitschr. 1866, p. 202”.
Hab. Nicaracva, Chontales (Belt, Janson); Panama (coll. F. Bates), Bugaba, Volcan
de Chiriqui (Champion)—Cotomsia, Bogota’; Guiana, Cayenne!234; Brazu?;
Peru ®®; Borivia.

_ An extremely variable insect. The very long series of Central-American examples
before me nearly all belong to the typical form, in which the elytra have a common
broad median transverse band and the suture narrowly black; some few specimens
have the suture only black.

The variety described by Erichson > as quadrimaculatus | the insect figured by Thomson
under this name (op. cit.) does not agree with Erichson’s description] and by Kirsch’?
as quadriplagiatus has the elytra black, with a large spot at the shoulders and another
at the apex testaceous or fulvous: this form I have not yet seen from our country.
C. cincta is very abundant throughout the forest-region of Tropical America and extends
as far north as Nicaragua. In some of the more southern localities all the numerous
varieties have been collected together. Pecilesthus fasciatus (Fabr.) is erroneously
given as a synonym of this species by Thomson.

6. Cuphotes elongata.
Spheniscus elongatus, J. Thoms. Arcana Nat. p. 112 1

Hab. Nicaracua, Chontales (Belt).—Braziu '.

A single female example from Chontales agrees with the description of this insect.
C. elongata is one of three allied species described by Thomson, and known from the
others of the genus by the large and narrowly separated eyes, the deeply impressed
thorax, and the peculiar sculpture of the elytra. In the elytral maculation this insect
exactly resembles the typical form of Pecilesthus nigro-punctatus ; it is, however, at once
separated from that species by the thorax not being margined at the sides, and by
the elytral spots being somewhat depressed and punctured all over.

PCECILESTHUS.

Pecilesthus, Blanchard, Hist. Nat. Ins. i. p. 33 (1845) ; Lacordaire, Gen. Col. v. Pp. 483 (1859) ;
Maklin, (fv. Finsk. Vetensk.-Soc. Forh. xx. p. 64 (1878).
2 Spheniscus, Castelnau, Hist. Nat. Ins. Col. ii. p. 232 (1840) *.

This Tropical-American genus contains about thirty-five described species, and very

* Spheniscus kirby’, Cast. (Loc. cit.), from Brazil, from the description, would seem to be a species allied to
Pecilesthus pictus (Guér.), and not a variety of S. erotyloides, Kirby, as supposed by Lacordaire ; the definition
« eorselet rebordé” and the elytral sculpture appear to indicate an ally of P. pictus.

336 HETEROMERA.

many others exist in collections. I have to enumerate nine species from Central
America. P. nigro-punctatus (and P. pictus, Guér.) very closely resembles Cuphotes
elongata, C. maculosa (Thoms.), &c., and except for the laterally margined thorax
would seem better included in that genus; our other species have a very different
facies. Pacilesthus, however, like Strongylium, contains a very heterogeneous assem-
blage of species, comparatively few of which inhabit our region, and will doubtless
have eventually to be subdivided; all the species here referred to it have the sides of
the thorax completely margined. In P. nigro-punctatus the under surface is slightly
pubescent ; and, as in some species of Cuphotes, the middle of the metasternum, the
underside of the femora, and the last ventral segment are somewhat thickly clothed
with hair in the male; in our other species the under surface in both sexes is
almost entirely glabrous. The anterior tibie are often strongly curved and sinuous
and clothed with short hair within in the male; usually slightly curved in the
female.

1. Pecilesthus nigro-punctatus. (Tab. XIV. fig. 8, 3.)
Spheniscus nigropunctatus, Chevy. in litt.; Gemm. & Har. Cat. vii. p. 2028".
Spheniscus irroratus, Reiche in litt.

Oblong ovate, moderately convex, black, shining. Head closely and finely punctured, the intraocular space
and the vertex much more sparingly so, shallowly longitudinally impressed between the eyes; antenne
short, slightly passing the base of the prothorax, much widened outwardly, joint 3 much longer than 4,
joints 5-7 subtriangular, scarcely differing in length, each much wider than its predecessor, 8-11 broad,
wider than 7, transverse, 9 and 10 very strongly so, entirely black; prothorax strongly transverse,
moderately convex, the base feebly sinuate, the apex shallowly arcuate-emarginate, the sides feebly but
distinctly margined, narrowing rather rapidly from the base, nearly straight, a little rounded in front, the
anterior angles rounded and slightly produced, the hind angles subacute, the basal fovez very deep, the
disc slightly impressed in the middle before the base, the surface very finely and sparingly punctured ;
scutellum triangular, black; elytra rather long, moderately convex, the sides nearly straight in their basal
half, widest a little behind the middle, the shoulders scarcely impressed within, light yellowish-testaceous,
with numerous irregularly scattered rounded or oblong black or bluish-black spots, the base (narrowly)
and the apex (usually) more or less marked with black, the spots each surrounded by a line of punctures
and the interspaces with tortuous lines of rather coarse impressions, the rest of the surface closely and
minutely punctured, the extreme base only with longitudinal rows of impressions; beneath (and the
epipleure) black, slightly pubescent, sparingly punctured, the ventral surface more closely so; the meta-
sternum in the middle and the under surface of the femora thickly clothed with short hair, and the last
two ventral segments with longer and darker hair, in the male, the sixth (or hidden) ventral segment very
deeply excised in the middle in this sex; legs comparatively short and stout, black, the anterior and
intermediate tibie longer and more curved in the male.

Length 11-17 millim.; breadth 5-8 millim. (¢ 9.)

Hab. *Mzuxico? (coll. F. Bates); Panama (coll. F. Bates), Bugaba, Volcan de Chiriqui
(Champion).—CoLOMBIA; VENEZUELA; BRaziL.

Var. a. The sides of the prothorax broadly, and the basal half of the femora, red; the elytra marked as in
the type.

Hab. VENEZUELA (coll. F. Bates). One example.

PCECILESTHUS. 337

Var. 3. The elytra with a common black transverse median band extending to the lateral margins, the base and
apex often more or less marked with black. (Spheniscus lecontei, Dej. Cat. 3rd edit. p. 229.)

Hab. CotomBia?; Braziu?.

A common species in the southern parts of our region and extending southwards to
Brazil, and well known in collections under the name of P. nigro-punctatus (Chevr.).
South-American examples with a black median band to the elytra differ only in colour
from our insect: with the large amount of material before me I can only treat them as
a variety of P. nigro-punctatus. Chiriqui specimens have the elytra testaceous at the
extreme base; those from Panama have the base narrowly (and the apex rather broadly)
marked with black. In Southern Colombia and elsewhere in Tropical South America
the banded and unbanded forms inhabit the same localities. P. nigro-punctatus is
closely allied to P. pictus (Guér.) of Tropical South America; but differs in having the
elytra more regularly but more feebly convex (not subgibbous towards the base as in
that species), more finely punctured (the tortuous lines of impressions not so deeply
impressed), and more regularly spotted with black (especially on the posterior half); the
anterior angles of the thorax less produced, &c.; both species have the elytra testaceous,
with irregularly scattered black spots, each of the black spots surrounded by a line of
punctures, the spots thus appearing slightly raised. The locality Mexico’ would seem
to require confirmation. A Chiriqui specimen is figured.

2. Pecilesthus variipes. (Tab. XIV. fig. 9, ¢ .)

Oblong ovate, feebly convex, reddish-testaceous, shining. Head deeply excavate in front, longitudinally im-
pressed in the middle between the eyes, the intraocular space rather narrow, closely and coarsely punctured,
the eyes darker in tint; antenne dark violaceous, about reaching to the first third of the elytra, rather
stout, joint 4 much longer than 3, joints 4-10 subtriangular (the inner apical angles of each angularly
extended), decreasing a little in length outwardly, 7-9 the widest, the apical joint oblong and narrower
than the tenth; prothorax rather broader than long, moderately convex, the base and apex nearly straight,
the sides completely but not strongly margined, subangularly extended in the middle and rather abruptly
emarginate before and behind this, and narrowing anteriorly, the anterior angles deflexed and rounded, the
hind angles subrectangular, the base deeply grooved within between the fovex, the surface rather uneven,
very irregularly, somewhat sparingly, but rather coarsely punctured, a narrow longitudinal space on the
middle of the disc impunctate; scutellum finely and sparingly punctured; elytra long, subparallel in their
basal half, the base shallowly impressed within, deeply and somewhat coarsely punctate-striate, the striz
here and there irregularly interrupted on the disc towards the base, the interstices feebly convex and
sparingly but quite distinctly punctured ; beneath almost glabrous, the fifth ventral segment clothed with
short hairs, the prosternum, the sides of the meso- and of the metasternum and side-pieces, and the flanks
of the prothorax, rather coarsely punctured, the ventral surface very finely and very sparingly so, the rest
of the surface nearly smooth; legs long and slender, testaceous, the apices of the femora and the tibiz
and tarsi violaceous; anterior tibiee in the male slightly curved and with the inner margin somewhat
thickly clothed with hair.

Length 11 millim.; breadth 43 millim. (¢.)

Hab. Nicaracva, Chontales (Belt).
One example. P. variipes is separated from its allies by the comparatively long and

uneven thorax, the deeply striate elytra, the structure and colour of the antenne, and
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1887. 2 XX.

338 HETEROMERA.

the peculiarly-coloured legs. In size and colour this insect approaches P. angulicollis,
Makl., and P. testaceus, Kirsch. :

3. Pecilesthus fragilicornis. (Tab. XIV. fig. 11, ¢.)

Oblong, moderately convex, testaceous or fusco-testaceous, shining. Head piceous or black, the anterior half
and the oral organs more or less testaceous, finely and rather sparingly punctured, the vertex longitudi-
nally impressed; antenne long (nearly reaching to the middle of the elytra) and very slender, not
widening outwardly, the joints very little wider at their apex than at their base, 8-11 about equal in
length, 1-4 fusco-testaceous, 5—7 or 5-8 more or less piceous, 8-11 or 9-11 light testaceous; prothorax
strongly transverse, rather convex, the base and apex nearly straight, the sides subangularly extended in
the middle, narrowing anteriorly, and rather abruptly sinuate before the obliquely cut off obtuse anterior
angles, the hind angles subrectangular, the base deeply impressed within, the basal fovex deep, the
surface shallowly and sparingly but very distinctly punctured ; scutellum testaceous, sparingly punctured ;
elytra long, subparallel to beyond the middle, the shoulders rather deeply impressed within, shallowly
punctate-striate, the interstices sparingly and minutely punctured, the basal fifth and a broad transverse
band a little beyond the middle, black, the black markings not quite extending to the suture; beneath
almost smooth, testaceous, the sides of the metasternum broadly and the side-pieces black; legs long and
very slender, testaceous, the tibiee and tarsi more or less stained with fuscous; anterior tibie in the male
slightly curved and with the inner margin somewhat thickly clothed with hair.

Var. a. Elytra with the black basal spot much smaller (not extending to the sides and distant from the suture),
and with rather more than the apical half black. (Tab. XIV. fig. 12, 3.)

Var. B. Above and beneath testaceous, the elytra each with a small transverse piceous spot placed a little
behind the middle.

Length 84-11 millim.; breadth 33-43 millim. (¢ 2.)

Hab. Costa Rica (coll. Gorham); Panama, Bugaba (Champion).

Eight examples. This insect is distinguished by its very slender legs and antenne.
The different varieties were collected together at Bugaba.

4. Pecilesthus latus.

Broad ovate, short, feebly convex, testaceous, shining. Head very finely and sparingly punctured, the vertex
unimpressed, the eyes a little darker and widely separated; antennee long and slender, gradually widening
outwardly (the last four joints missing), joints 4-7 slightly stained with piceous on their outer edge ;
prothorax strongly transverse, feebly convex, the base slightly bisinuate, the apex nearly straight, the sides
feebly subangularly extended in the middle and narrowing a little in front, the anterior angles broadly
rounded, the disc transversely impressed in the middle just in front of the basal margin, the basal fovew
deep, the surface very sparingly, finely, and shallowly punctured ; scutellum almost smooth; elytra com-
paratively broad, short, somewhat depressed, finely and lightly striate-punctate, the interstices broad,
quite flat, and very minutely punctured; beneath almost smooth; legs rather slender, the inner edges of
the tibia and the knees stained with fuscous, the tarsi piceous; the anterior tibie (in the female) slightly
curved.

Length 11 millim.; breadth 53 millim. ( 2.)

Mab. Nicaracva, Chontales (Janson).

A single specimen. This immature-looking insect somewhat resembles the pallid
form of P. fragilicornis, but is much broader; the elytra are shorter and broader, very
lightly striate-punctate, and with the interstices perfectly flat; the head is smoother
and has the vertex unimpressed, &c. The anterior tibie are almost as strongly curved
as in the opposite sex of the allied species.

PCECILESTHUS. 339

5. Pecilesthus guatemalensis.

Oblong ovate, rather convex, bright reddish-testaceous. Head coarsely and rather closely punctured, the

anterior half much smoother, shallowly longitudinally impressed between the eyes; antenne rather short,
widening outwardly, joint 6 the length of but much wider than 5, subtriangular, joints 7-10 decreasing
slightly in length, wider than 6, 7 and 8 about as long as broad, the apical joint longer and narrower
than the tenth, joints 1-5 and the extreme apex testaceous, the rest black; prothorax short, convex,
strongly transverse, the sides a little rounded about the middle and narrowing anteriorly, the base and
apex nearly straight, the anterior angles rounded, the basal foves very shallow, the surface coarsely and
rather closely punctured; scutellum depressed in the middle; elytra moderately long, rather convex,
subparallel in their basal half, shallowly striate-punctate, the interstices perfectly flat and each with about
three rows of rather coarse punctures (the punctures nearly as coarse as those of the strie); beneath
almost smooth, the flanks of the prothorax somewhat coarsely punctured; legs slender, unicolorous,
testaceous ; anterior tibie in the male curved and sinuous, a little widened on the inner side towards the
base, and with the inner margin clothed with short hairs.

Length 6} millim.; breadth 24 millim. (¢.)

Hab. GuatemMAa, Teleman (Champion).

A single male example captured by myself in the Polochic valley. An obscure
species, though abundantly distinct from any other of the genus known to me.

6. Pecilesthus laticollis. (Tab. XIV. fig. 10, 2 .)

Oblong ovate, moderately convex, testaceous or fusco-testaceous, shining. Head very finely and sparingly

punctured, in one or two examples almost smooth, the vertex nearly or quite unimpressed, the eyes more
or less piceous in tint; antenne ( Q ) comparatively short, widening outwardly, joints 6-8 subtriangular,
8-10 equal in width but decreasing in length, the apical joint longer and rather narrower than the tenth,
testaceous, joints 4-6 more or less stained with fuscous, 8-11 black, the extreme apex of the eleventh
testaceous ; prothorax exceedingly short, twice as broad as long, slightly convex, very strongly mar-
gined, the base feebly bisinuate, the apex nearly straight, the sides feebly emarginate about the middle
and slightly narrowing in front, the anterior angles broadly rounded, the base deeply impressed within
between the fovese, the surface very sparingly, shallowly, and finely punctured, much more coarsely so on
the basal portion of the disc, the basal half of the disc and the margins usually stained with piceous ;
scutellum more or less stained with fuscous or piceous, sparingly punctured; elytra moderately long,
feebly convex, subparallel in their basal half, rather deeply punctate-striate, the interstices feebly convex
and finely and sparingly punctured, the shoulders, a rather large patch on the disc (sometimes represented
by a short oblong streak on the second and fourth interstices) of each near the base, a transverse band of
longitudinal streaks about the middle (these streaks placed on the alternate interstices from the second to
the eighth, that on the second being very much the longest), a streak on the second interstice near the
apex, and a triangular patch at the point of junction of the third and sixth striw, piceous or black;
beneath almost smooth, the sides of the meso- and of the metasternum and side-pieces, and the epipleure,
sometimes stained with piceous; legs moderately long, the apices of the femora, the tibie and tarsi more
or less stained with fuscous.

Length 62-8 millim.; breadth 22-33 millim. ( 9.)

Hab. Mzxico, Cordova (Sallé), Tapachula in Chiapas (Hoge); GuaTemaLa, Zapote
(Champion).

Var. The elytral markings obliterated, the rest as in the type.

Hab. Guatemata, Zapote (Champion).

Six female examples. This species is allied to P. decem-signatus, Makl., and some
undescribed forms from Tropical South America. ‘The exceedingly short, broad, and

2 XX 2

340 HETEROMERA.

comparatively strongly margined thorax readily distinguishes this insect from all others
inhabiting our region. The single example from Cordova has the longitudinal streaks
on the elytra much more interrupted and somewhat differently arranged. A female
typical example from Zapote is figured.

7. Pecilesthus immaculatus. (Tab. XIV. fig. 13, ¢ .)

Oblong ovate, rather convex, red or fusco-testaceous in tint, shining. Head almost smooth, unimpressed
between the eyes; antennz moderately long, gradually widening outwardly, joints 8-10 about equal in
width, longer than broad, and very slightly decreasing in length, the apical joint the width of but rather
longer than the tenth, black, the basal two joints and the extreme apex testaceous ; prothorax strongly
transverse, feebly convex, the base slightly bisinuate, the apex nearly straight, the sides subangularly
extended about the middle, narrowing in front, and somewhat abruptly emarginate before the obtuse
anterior angles, the basal fovexw shallow, the surface shallowly, finely, and very sparingly punctured ;
scutellum smooth, piceous or black; elytra moderately convex, comparatively short, subparallel in their
basal half, deeply and rather coarsely punctate-striate, the interstices very slightly convex and very
sparingly and minutely punctured; beneath smooth, impunctate; legs rather long, the apices of the
femora, and the tibie and tarsi, stained with piceous; anterior tibia in the male slightly curved and with
the inner margin clothed with short scattered hairs.

Length 6-8 millim.; breadth 3-32 millim. (db @.)

Hab. Panama, Volcan de Chiriqui (Champion).

The two examples differ a little inter se, but I have no doubt they are the sexes of
the same species. The male is bright red in tint, and has only the outer edges of the
tibiae piceous, and the sides of the thorax more deeply emarginate in front than in the
female; the latter is of a fusco-testaceous colour, and has the tibiz entirely piceous ;
both have the scutellum dark.

8. Pecilesthus leviceps. (Tab. XIV. fig. 14, 2.)

Oblong ovate, moderately convex, testaceous, shining. Head smooth, deeply longitudinally impressed in the
middle between the eyes; antennse moderately long, gradually widening outwardly, joints 8-10 equal in
width but decreasing in length, the apical joint the length of the eighth, joints 7-11 piceous, the extreme
apex of the eleventh and the basal six fusco-testaceous; prothorax strongly transverse, comparatively
convex, the base feebly bisinuate, the apex almost straight, the sides a little extended about the middle,
narrowing anteriorly, rather abruptly emarginate before the deflexed and rounded anterior angles, and
slightly sinuate behind, the entire base deeply grooved within, the surface very sparingly and shallowly
punctured; scutellum testaceous, smooth; elytra moderately convex, comparatively short, subparallel in
their basal half, shallowly and rather finely punctate-striate, the interstices slightly convex and finely
and somewhat closely punctured, a narrow curved transverse band a little below the shoulders
(extending upwards on the second and third interstices, but not reaching the lateral margins), a sub-
angular rather broad common transverse median band (extending triangularly forwards along the suture
but not reaching the lateral margins), and a transverse patch on the disc of each midway between this and
the apex, fusco-piceous ; beneath smooth, impunctate, the epipleuree and the sides of the meso- and of the
metasternum and side-pieces stained with fusco-piceous; legs comparatively rather short, the apices of
the femora and the tibie and tarsi stained with piceous.

Length 74 millim.; breadth 3 millim. ( 2.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One example. This insect is allied to P. ¢mmaculatus; it is, however, readily sepa-

PEECILESTHUS.—STRONGYLIUM. 341

rated by the impressed head, more convex thorax, testaceous scutellum, much finer and
more lightly impressed elytral strie, slightly convex and closely punctured interstices,
shorter legs, &c.; and also by the maculation of the elytra.

9. Pocilesthus maklini. (Tab. XIV. fig. 15, 3.)

Oblong ovate, moderately convex, testaceous, shining. Head very sparingly and minutely punctured, the
vertex unimpressed; antennz moderately long, gradually widening outwardly, joints 5-10 subtriangular,
much longer than broad, almost equal in length, the apical joint ovate and as long as but rather narrower
than the tenth, joints 7-11 black, the basal halves of 4~6 stained with piceous, the rest (and the extreme
apex of the eleventh) testaceous or fusco-testaceous; prothorax strongly transverse, moderately convex,
the base feebly bisinuate, the apex nearly straight, the sides feebly rounded and but little narrowing in
front, the anterior angles rounded, the base deeply grooved within in the middle, the basal fovese mode-
rately deep, the surface sparingly but very distinctly punctured on the disc, obsoletely so towards the
sides, the middle of the base slightly stained with piceous; scutellum smooth, piceous; elytra compara-
tively rather short, moderately convex, subparallel in their basal half, rather shallowly punctate-striate,
the interstices flat and rather closely but very minutely punctured, the suture (except at the apex)
and a longitudinal patch (placed about the middle and extending from the third to the eighth interstices)
on the disc of each piceous ; beneath smooth, impunctate, the epipleure stained with piceous; legs rather
long and slender, the apices of the femora and the outer edges of the tibie stained with fuscous, the tarsi
with piceous; anterior tibie in the male strongly curved (the intermediate pair also but not so distinctly),
and with the inner margin thickly clothed with hair.

Length 74 millim.; breadth 3 millim. (¢.)

Hab. Guatemaa, San Juan in Vera Paz 2000 feet (Champion).

A single example of this distinct species was captured by myself on the forest-clad
mountain-slope north of the Polochic valley. P. mdklini is perhaps nearest allied to
P. immaculatus ; it is separated from that species by the thorax being more rounded
at the sides and less narrowed in front; the elytral striz finer and not so deeply
impressed, and the interstices quite flat; and also by the elytra being maculated.

STRONGYLIUM.
Strongylium, Kirby, Trans. Linn. Soe. xii. p. 417 (1818); Lacordaire, Gen. Col. v. p. 484 (1859) ;
Maklin, Monogr. 1864, p. 109; Acta Soc. Fennice, viii. part 1, p. 225 (1867).
Stenochia, Kirby, 1. c. p. 423 (1818).
Pecilesthus, Dejean, Cat. 8rd edit. p. 229 (1837) (pars).
Serangodes, Dejean, Cat. 1. c.
Gentinadis, Castelnau, Hist. Nat. Col. i. p. 240 (1840).

Maklin in his monograph of this genus enumerates 266 species, of which 189 are
from the New World; the 189 New-World species are apportioned thus:—North
America 3, Mexico and Central America 36, South America 145, and the Antilles
5. Since that time (1864) 39 additional species have been recorded, 5 only of
which are from the New World, viz. 2 from Florida, and 3 from Tropical South
America.

A large number of undescribed forms, however, exist in’ collections, and the total

342 HETEROMERA.

number of species cannot be less than 400, a very large proportion of which inhabit
Tropical South America.

We have now to record 67 from Central America, the majority of the new species
being, as might be expected, from the southern part of our region.

All the species here referred to it have the third joint of the antenne longer than
the fourth, or the third and fourth joints subequal. The first joint of the posterior
tarsi varies very much. in length, the eyes are sometimes very large and approximate,
sometimes quite small and widely separated, and generally largest in the male, and the
usually hidden and more or less corneous sixth ventral segment is sometimes visible, in
the different species. The males often have the anterior tibie more curved, or slightly
sinuate, and more evidently pilose within than in. the female, and the fifth ventral
segment impressed (sometimes in the female also) in the middle behind; in some
species (e. g. S. maculicolle) the metasternum is somewhat thickly clothed with short
decumbent hair (as in certain Cuphotes) in this sex. |

A. Form broad, oblong ovate, comparatively short (resembling Poecilesthus) ; eyes small ;
upper surface comparatively very smooth and shining. LElytra regularly convex,
very finely and lightly striate-punctate, with the interstices quite flat; testa-
ceous or red, sometimes maculated.

* Prothorax with the sides feebly margined towards the base.

1. Strongylium maculicolle. (Tab. XIV. fig. 16, 3.)

Oblong ovate, comparatively broad, moderately convex, reddish-testaceous, shining. Head sparingly but deeply
and somewhat coarsely, the epistoma much more closely, punctured ; the intraocular space with a smooth
longitudinal, slightly impressed, space down the middle; the eyes small and widely separated; the oral
organs, the epistoma in the middle, the sides behind the eyes, and, rarely, the extreme base piceous or
black; antenne moderately long, very slightly widening outwardly, joints 3 and 4 long, subequal, 5-10
gradually decreasing in length, much longer than broad, the apical joint ovate, and rather longer than the
tenth, black; prothorax strongly transverse, moderately convex, the base feebly bisinuate, the apex very
slightly emarginate on each side behind the eyes, the sides very feebly but distinctly margined at the

. base, and obsoletely so at the apex, narrowing from the base, and slightly sinuous about the middle, the
anterior angles rounded and rather prominent, the hind angles subacute, the basal fovez deep, the disc
impressed in the middle at the base, and often obsoletely canaliculate in front, the surface finely and
sparingly (but deeply) punctured, with a more or less broad black stripe (usually narrowing towards
the middle, and leaving a large triangular patch in front) on the disc, this stripe connected along the base
with a large triangular black patch occupying the hind angles; scutellum large, scutiform, sparingly
punctured, piceous or black; elytra comparatively broad and short, widest a little behind the middle,
subparallel in their basal half, finely striate-punctate, the interstices perfectly flat and closely and very
distinctly punctured, the surface stramineous in colour, and of a much lighter tint than the prothorax,
each with three rather large spots placed transversely before, and three other smaller spots (sometimes
confluent, sometimes very small) placed transversely behind, the middle, fuscous or black; beneath reddish-
testaceous, the flanks of the prothorax and the sides of the meso- and of the metasternum and side-pieces
more or less stained with piceous or black, moderately closely punctured, sparingly pubescent; the meta-
sternum in the middle, and the inner side of the curved anterior tibise from the middle to the apex,
somewhat thickly clothed with hair in the male; legs rather long, the first joint of the posterior tarsi
very long, black or piceous, the basal half of the femora reddish-testaceous.

STRONGYLIUM. 343

Var. The elytra with the outer two spots of the first band confluent, and the three spots of the second band
united into one large spot.

Length 10-15 millim.; breadth 5-6 millim. (¢ 9 )
Hab. Nicaracua (Sallé), Chontales (Belt, Janson); Costa Rica (Sallé); Panama,
Bugaba, Volcan de Chiriqui 3000 feet (Champion).

Many examples. All the Nicaraguan examples belong to the variety, but in Chiriqui
both forms were collected together. A very distinct species, resembling in its general
facies and elytral maculation certain forms of Pecilesthus; in the structure of the
thorax this insect is almost intermediate between that genus and Strongylium. The
legs scarcely vary in colour.

A typical example from Chiriqui is figured.

** Prothorax with the sides immarginate.

2. Strongylium hopfneri. (Tab. XIV. figg. 17, ¢; 18, 3, var. pectorale.)
Strongylium hepfneri, Makl. Monogr. p. 124; Act. Soc. Fenn. viii. part 1, p. 2327.
Pecilesthus hépfneri, De}. Cat. 3rd edit. p. 229%.
Pecilesthus rufipennis, De}. Cat. 1. c.’.

Var. a. Head and thorax rufo-testaceous, the legs black; the fourth and fifth ventral segments red.
Strongylium scutellare, Makl. Monogr. p. 125; Act. Soc. Fenn. viii. part 1, p. 233 *.

Var. G. Head and prothorax rufo-testaceous, the basal three fourths of the femora red; beneath in greater
part red.

Strongylium pectorale, Mikl. Monogr. p. 125; Act. Soc. Fenn. vii. part 1, p. 233”.
Strongylium lucidum, Deyr. in litt.

Var. y. Upper surface fusco-piceous ; beneath (except the fifth ventral segment) and the legs black.
Strongylium immundum, Makl. Monogr. p. 126; Act. Soc. Fenn. viii. part 1, p. 234°.

Var. 5. Above and beneath coloured as in the type (black, the elytra and the fourth and fifth ventral segments
red), the elytral interstices almost impunctate.

Strongylium chevrolatii, Makl. Monogr. p. 127; Act, Soc. Fenn. vii. part 1, p. 2357.
Pecilesthus chevrolatii, De}. Cat. 3rd edit. p. 229°.

Hab. Mexico 12245678, Cordova, San Andres Tuxtla, Playa Vicente (Saillé),
Misantla, Mirador (Hoge); GuaremMaLa, Senahu, Teleman, Panima, Sinanja, Chacoj,
and San Juan in Vera Paz (Champion).

I can detect nothing of importance in Maklin’s descriptions, which were no doubt
based upon very insufficient material, of these five so-called species, beyond colour
and some slight difference in the punctuation of the elytral interstices. The very
large amount of material before me connects the numerous varieties, most of which
occur together in the same localities, not only in Mexico but in Guatemala also. The
head, thorax, antenne, legs, and under surface vary very much in colour; but the
elytra are usually red, and the scutellum is always piceous or black. The var. y,

344 HETEROMERA.

S. immundum, appears to be the rarest (it was. described from a single, possibly
discoloured example), and I have not seen anything exactly answering to the colour
given, the specimen before me with darker elytra having the thorax black.

I met with S. hépfneri in abundance at San Juan in Vera Paz; three of its varieties
were collected together indiscriminately on charred stumps in a forest clearing.

The localities for this species are all upon the Atlantic slope.

We figure a typical example from Sinanja, and the variety pectorale from San Juan.

3. Strongylium chontalense. (Tab. XIV. fig. 19, 2.)

Oblong ovate, rather convex, reddish-testaceous, slightly tinged with fuscous, shining. Head rather coarsely
but sparingly punctured, longitudinally impressed between the eyes, the latter feebly convex and somewhat
widely separated; antenne ( @ ) rather short, rapidly widening outwardly, joints 3 and 4 moderately long,
subequal, 5-7 nearly equal in length, and each much shorter than 4, 8 as broad as long, 9 and 10
transverse, joints 1-4 testaceous at the base, blackish-sneous outwardly, the rest dull bluish-black ;
prothorax rather convex, transverse, the sides immarginate, a little rounded, narrowing from the
base, and with a small tubercular prominence in the middle, the base and apex nearly straight and
strongly margined, the basal fovee moderately deep, the anterior angles rounded, the hind angles
subrectangular, the surface with very widely scattered fine, but deep, punctures, the dise slightly
transversely impressed before the base, the basal and apical margins stained with piceous; scutellum
triangular, smooth, piceous; elytra short, convex, subparallel (though a little widening) to beyond
the middle, very finely and lightly striate-punctate, obsoletely so towards the apex, the interstices
perfectly smooth and flat, light yellowish-testaceous, each with a very large subovate fuscous or piceo-
fuscous patch on the dise (the patch not reaching the sutural or lateral margins, and occupying more than
half the length of each elytron), the suture narrowly and the epipleure piceous ; beneath shining, glabrous,
almost smooth, the metasternal side-pieces and the flanks of the prothorax sparingly and rather coarsely
punctured; legs comparatively short, moderately slender, sparingly punctured, blackish-eneous, the basal
half of the femora (and in one example the inner sides of the tibize) reddish-testaceous ; tarsi rather short,
the first joint of the posterior pair shorter than the apical one.

Length 11 millim.; breadth 5 millim. ( 2.)

Hab. Nicaraeua, Chontales (Belt, Janson).

Two examples, apparently both females. This insect, except for the immarginate sides
of the thorax, has much the facies of a Pecilesthus; it will easily be identified from
our figure.

B. Form oblong ovate; eyes small; upper surface dull black with a slight eneous tinge.
Elytra abruptly transversely gibbous about the middle, with rows of oblong fovee.

4. Strongylium gibbum. (Tab. XIV. figg. 20, 20a, ¢.)
Strongylium gibbum, Makl. Monogr. p. 144; Act. Soc. Fenn. vii. part 1, p. 252°.
Hab. Mexico (coll. Chevrolat1); Guatemata, San Juan in Vera Paz 2000 feet
(Champion).
A single male example collected by myself in Guatemala agrees so closely with

Maklin’s description of S. gidbum, that I have little doubt it represents the same
species. It differs in having longer and more slender antenne, and the sides of the

STRONGYLIUM. 345

thorax armed with a very small tubercular prominence about the middle. Maklin’s
description was probably taken from a female example.

N ° ° e ° °
C. Form narrower, oblong ovate, elongate ovate, or cylindrical ; eyes variable in size ;
upper surface variable.

Elytra long and convex, with widely scattered rounded or oblong fovee, testaceous,
spotted with black; eyes large; upper surface shining, smooth.

5. Strongylium sallei. (Tab. XIV. fig. 23, 2.)
Strongylium sallei, Makl. Monogr. p. 149; Act. Soc. Fenn. viii. part 1, p. 257, t. 2. f.17°.
Strongylium femorale, Chevr. in litt.
Hab. Mexico}, Orizaba (Sallé); Guatemata, San Juan in Vera Paz (Champion) ;
Nicaragua, Chontales (Belt).

The two Mexican examples before me have the basal half of the femora red; two
others from Guatemala and Nicaragua have the legs entirely black.

Miklin’s figure being a very poor one, we give another from an example from
Orizaba.

Elytra short, very coarsely foveolate-striate to the middle and thence to the apex deeply
sulcate; prothorax rugosely punctured ; eyes small; upper surface dull blackish-
bronze.

6. Strongylium semistriatum. (Tab. XV. fig. 1, ¢.)
Strongylium semistriatum, Makl. Monogr. p. 143; Act. Soc. Fenn. viii. part 1, p. 251°.

Hab. Mxxico!, Cordova (Sal/é).

Elytra moderately long, with rows of oblong fovee or coarse punctures in their basal
half and thence to the apex sulcate; eyes small; upper surface dull blackish-
bronze.

7. Strongylium funestum.
Strongylium funestum, Mikl. Monogr. p. 187; Act. Soc. Fenn. viii. part 1, p. 295°.

Hab. Mexico! (Sallé, ex coll. Sturm).

A single example of this species is contained in the Salle collection.

8, Strongylium punctifrons.
Strongylium punctifrons, Makl. Monogr. p. 188; Act. Soc. Fenn. viii. part 1, p. 296".

Hab. Mexico}, Cordova, Playa Vicente, Chiapas (Sallé); British Honpuras (Llan-

caneaua).
BIOL. CENTR.-AMER., Coleopt., Vol. 1V. Pt. 1, December 1887. 2YY

346 HETEROMERA.

Elytra very coarsely foveolate-striate throughout.

* Prothorax very coarsely rugosely punctured; eyes large and approximate in the
male, smaller in the female; upper surface dull dark bronze, the elytra with
a cupreous tint.

9. Strongylium excavatum. (Tab. XV. fig. 2, 3.)
Strongylium excavatum, Makl. Monogr. p. 166; Act. Soc. Fenn. viii. part 1, p. 274".
Serangodes excavatus, De}. Cat. 3rd edit. p. 229°.
Strongylium cribrosum, Mannerh. in litt.

Hab. Mexico 12, Oaxaca (coll. Mannerh.), Cordéva, Catemaco ( Sallé) ; GUATEMALA,
Cubilguitz (Champion); Nicaragua, Chontales (Belt, Janson).

** Prothorax coarsely and closely punctured ; eyes small ; upper surface
more shining, greenish-bronze.

10. Strongylium canaliculatum. (Tab. XV. fig. 3, 2.)

Oblong ovate, rather convex, greenish-eneous, not very shining. Head very coarsely and rugosely punctured,
very shallowly impressed between the eyes, the latter small, very feebly convex, and widely separated ;
antenne (@) short, very distinctly widening outwardly, joints 3 and 4 long, subequal, 5-7 subtriangular,
8 about as broad as long, 9 and 10 transverse, 11 longer than 10, short ovate, 1-6 testaceous, much suffused
with greenish, the rest dull dark cyaneous ; prothorax rather convex, broader than long, the sides immargi-
nate, rounded and narrowing in front, and almost straight or but little narrowed behind, the anterior angles
rounded, the hind angles subrectangular, the dise very distinctly and somewhat deeply canaliculate, and
with a deep impression on each side immediately above the deep basal fovez, the surface very coarsely and
closely punctured ; scutellum subtriangular, sparingly punctured; elytra comparatively short, moderately
convex, a little depressed on the disc, subparallel in their basal half, the surface from the base to the apex
with irregular and much interrupted rows of very coarse and deep excavations, the excavations punctiform
at the base and there arranged in more regular rows, the interstices irregularly raised and obliquely or
transversely confluent, smooth ; beneath more shining, greenish-zeneous, very slightly pubescent, sparingly
but not very finely punctured, the fifth ventral segment and the other segments at the sides more coarsely
and closely so, the metasternum at the sides and the flanks of the prothorax very coarsely punctured ;
legs short, stout, very closely and coarsely punctured, seneous or greenish-sneous, the tarsi cyaneous, the
first joint of the posterior tarsi much shorter than the apical joint, the anterior and intermediate tibic (in
the female) short, curved, and somewhat dilated.

Length 9-102 millim.; breadth 3-4 millim. ( 2.)

Hab. Mexico (Sallé); Guaremata, Teleman (Champion).

Three female examples. The stouter and shorter legs, the longer, more distinctly
canaliculate, and much more finely punctured thorax, and the shorter and more parallel
elytra separate this species from S. chiriqguense, which it otherwise closely resembles.
From S. excavatum it is distinguished by its smaller size, the small and widely separated
eyes, the punctures of the thorax separate one from another, the excavations of the
elytra much more irregular and coarser, the elytra themselves shorter, the much shorter
legs, &c. The single example from Mexico is larger, and has the elytral excavations

still coarser and deeper and more irregular than in the two Guatemalan specimens ;
one of the latter is figured.

STRONGYLIUM. 347

11. Strongylium crassicorne.

Moderately elongate, rather convex, bright bronze with a slight golden tint. Head (including the vertex)
very coarsely and rugulosely punctured, somewhat flattened but not distinctly grooved between the eyes,
the latter small and convex and very widely separated ; antennz (2) short, passing very little beyond
the base of the prothorax, stout, rapidly widening outwardly, joint 3 comparatively short, 4 the length of
but much wider than 3, subtriangular, 5-10 each wider than 3, broadly subtriangular, 7-10 about as long
as broad, 11 broad, rather longer than wide, and bluntly rounded at the apex, 1-3 and the base of 4 and
5 red, the rest dark dull cyaneous ; prothorax rather broader than long, convex, the sides immarginate, a
little sinuate but not narrowing behind, and rounded and narrowing in front, the apex straight, the base
slightly sinuate, the anterior angles rounded, the hind angles subacute, the disc distinctly canaliculate
(more deeply so at the base and apex), and with a deep transverse impression on each side a little above
the broad very deep basal fovese, and another very much shallower one on each side a little before the
middle, the surface rather uneven, very irregularly, somewhat closely, and very coarsely punctured ;
scutellum triangular, sparingly punctured ; elytra comparatively rather short and convex, subparallel to
beyond the middle, the surface from the base to the apex with irregular and much interrupted rows of
very coarse and deep excavations, the excavations coarsest and here and there confluent on the middle of
the disc, finer and punctiform and arranged in more regular rows at the extreme base, and very shallow
(but not placed in grooves) at the apex, the interstices sparingly and minutely punctured ; beneath very
shining, rich golden-green, glabrous, finely and very sparingly punctured, the sides of the metasternum a
little coarsely, the flanks of the prothorax very coarsely, punctured; legs moderately long, the femora and
tibie rather coarsely punctured, the tarsi rather short and with the first joint of the posterior pair much
shorter than the apical one, neous, the femora towards the base and the tibie in great part reddish, the
tarsi more or less cyaneous.

Length 12-12: millim.; breadth 4 millim. (9@.)

Hab. Nicaraeva, Chontales (Belt, Janson).

Three female examples. This insect resembles S. viridipes and S. costaricense, but
it-is at once separated by the very short, stout antennz (in the female), the widely
separated, small, and more convex eyes, and other characters noticed above; the elytra

are more convex (especially behind) than in S. costaricense, and sculptured very much
as in that species.

Elytra longer, coarsely and irregularly foveolate-striate, the fovee more scattered and
at the apex here and there longitudinally confluent ; eyes rather large ; upper sur-
face more shining ; prothorax subremotely punctured.

12. Strongylinm viridipes. (Tab. XV. fig. 4, ¢.)

Strongylium viridipes, Mikl. Monogr. p. 166; Act. Soc. Fenn. viii. part 1, p. 274°.
Serangodes viridipes (Chevr.), Dej. Cat. 3rd edit. p. 229 *

Hab. Mexico! 2, Cordova (Sallé), Tehuacan, Misantla (Hége).

An example from Misantla is figured.

2YY 2

348 HETEROMERA.

Elytra irregularly foveolate-striate and transversely wrinkled to beyond the middle and
thence to the apex rather finely punctate-striate, the surface with bright metallee
cupreous, green, and golden tints ; eyes small.

13. Strongylium ignitum. (Tab. XV. fig. 5,6.)

Moderately elongate, feebly convex ; the head bronzy with the anterior half greenish-sneous ; the prothorax
brownish-bronze ; the elytra in great part fiery-cupreous tinged with violaceous, with a narrow angulated
transverse metallic green band (preceded by a narrower golden band) before the middle, another (followed
by a narrower golden band) behind the middle, and a third (preceded by a golden band) just before the
apex. Head closely and coarsely punctured, longitudinally impressed between the eyes, the latter rather
small and widely separated in both sexes; antenne rather short and stout, a little longer in the male,
rapidly widening outwardly in both sexes, joints 3 and 4 rather long, about equal in length, 4 wider than
3, 5-7 subtriangular, 9 and 10 longer than broad in the male, subtransverse in the female, 11 ovate and
longer than 10, 1-4 more or less greenish-wneous, 5-11 dull cyaneous, the extreme apex ferruginous ;
prothorax rather convex, broader than long, the sides immarginate, a little rounded, and slightly narrowing
in front, in one example ( @ ) almost straight behind and the hind angles subrectangular, in the other( 3)
sinuous with the hind angles acute, the base bisinuate and rather strongly margined, the apex straight,
the basal fovez deep, the disc deeply transversely impressed before the base and with some irregular trans-
verse or rounded impressions on each side about the middle, the surface coarsely and sparingly punctured ;
scutellum triangular, smooth, zneous; elytra moderately long, rather depressed on the disc, the sides
subparallel to beyond their basal half, but a little compressed before the middle, the base rather deeply
transversely impressed just within the somewhat swollen humeri, striate-punctate, the punctures from the
base to beyond the middle chiefly in the form of coarse rounded or oblong excavations and thence to the
apex (abruptly) fine and oblong in shape, the interstices between the excavations strongly and irregularly
wrinkled and thence to the apex nearly flat, almost smooth ; beneath bright greenish-eneous, the sides
of the metasternum reddish, the fourth and fifth ventral segments entirely (in one example the fifth and the
sides only of the fourth) reddish-testaceous, almost glabrous, very sparingly and minutely punctured, the .
flanks of the prothorax very coarsely so, the sides of the metasternum with scattered coarse impressions ;
legs short, rather stout, somewhat coarsely punctured, sneous or greenish-eneous, the basal half of the
femora and the outer side of the tibie more or less reddish, the tarsi cyaneous, the first joint of the
posterior tarsi rather shorter than the apical joint; the short anterior tibie a little curved (as in the female)
and somewhat thickly clothed with hair within, and the fifth ventral segment transversely impressed in
the middle behind, in the male.

Length 11 millim.; breadth 3% millim. (¢ 9.)

Hab. Nicaracua, Chontales (Belt).

Two examples. This vividly-coloured species has no near known ally; it will be
easily identified from our figure.

Elytra rather coarsely striate-punctate throughout ; prothorax strongly transverse and
angulate at the sides; eyes rather small; upper surface bronze, moderately
shining.

14. Strongylium dentatum.

Elongate, slightly convex, bronze or blackish-bronze, moderately shining. Head short, somewhat coarsely and
closely punctured, very shallowly or obsoletely impressed between the eyes, the latter moderate in size
and rather widely separated ; antennw (2) rather stout, moderately long, rapidly widening outwardly
joint 4 about as long as but wider than 3, subtriangular, joints 5-8 almost equal in length, subtriangular
8 and 9 about as long as broad, 10 subtransverse, 11 ovate, piceous, the basal three joints lighter .

STRONGYLIUM. 349

prothorax short, strongly transverse, the sides immarginate, subangularly extended about the middle,
and thence to the base and apex obliquely converging, a little more narrowed in front than behind, the
apex straight and rather strongly margined, the anterior angles prominent laterally, the base bisinuate
and rather strongly margined and with the median lobe somewhat produced, the hind angles subacute,
the disc obsoletely canaliculate, transversely impressed in the middle behind, and with a transverse
impression on each side immediately above the deep basal fovere (and in one example confluent with
these externally) and another on each side a little before the middle, the surface somewhat coarsely and
deeply but rather sparingly punctured; scutellum triangular, nearly smooth; elytra moderately long,
subparallel in their basal half, if anything widest a little behind the middle, striate-punctate, the punctures
fine on the disc (coarser towards the base), but becoming very much coarser and more irregular and here
and there confluent towards the sides, and very much finer and shallower towards the apex, the interstices
smooth, nearly flat, scarcely raised at the apex, but a little convex and irregularly wrinkled and here and
there transversely confluent towards the sides; beneath bright greenish-sneous or eneous, very slightly
pubescent, finely and sparingly punctured, the sides of the metasternum and the flanks of the prothorax
coarsely so; legs short, coarsely punctured, brownish-bronze, the basal half of the femora obscure red, the
tarsi slightly tinged with cyaneous, the first joint of the hind tarsi shorter than the apical joint.
Length 10-11 millim.; breadth 33-4 millim. (¢.) .

Hab. Nicaraeva (Sallé), Chontales (Belt).

_ Two female examples. This species is not closely allied to any other here enume-
rated; in general facies it much resembles certain forms of Tarpela.

_ Elytra rather broad and convex, with rows of oblong fovew to the middle, thence to the
apex very finely striate-punctate, and with the interstices flat, the apices divergent ;
eyes small; upper surface very shining, greenish-bronze.

15. Strongylium tinctipes. (Tab. XV. fig. 6, 2.)

Elongate, depressed, bright greenish-eeneous with slight golden and cupreous tints. Head very closely and
somewhat coarsely punctured, the intraocular space usually more coarsely so, longitudinally impressed
between the eyes, the latter somewhat strongly transverse and rather widely separated; antenne ( 9 )
stout, rather short, joints 3 and 4 comparatively short, subequal, 5-8 wider and subtriangular, 9 and 10
subparallel, longer than broad, 11 longer than 10, ovate, 1-5 cyaneous, the rest dull bluish-black ; pro-
thorax large and broad, moderately transverse, feebly convex, the sides immarginate, nearly straight
behind, narrowing and a little rounded in front, and armed in the middle with a short more or less distinct
tooth, the anterior angles rounded, the hind angles rectangular or subacute, the disc very shallowly
and indistinctly canaliculate and deeply impressed (in one example only shallowly so) in the middle just
before the base (the impression extending obliquely upwards on each side), the basal fovee shallow, the
surface rather uneven and very coarsely (in one example more finely) but somewhat sparingly punctured ;
scutellum subtriangular, sparingly punctured; elytra long, rather broad, a little depressed, subparallel
to beyond the middle, the basal margin on either side of the scutellum somewhat strongly raised, striate-
punctate, the punctures on the basal half (on the basal third only near the suture) in the form of coarse
deep irregular excavations (the excavations still coarser and deeper outwardly and here and there con-
fluent) and thence (abruptly) to the apex very fine and oblong in shape, tke interstices broad and quite
flat (except between the excavations) on the disc, very slightly raised at the sides and extreme apex, and
very minutely and very sparingly punctured, the suture and base tinged with cupreous, the apices obliquely
cut off and almost pointed ; beneath glabrous, very bright greenish-neous, the sides tinged with golden
and the fifth ventral segment and the epipleure with cyaneous, very finely and sparingly punctured, the sides
of the metasternum and the flanks of the prothorax coarsely so; prosternum broad, convexly produced and
received by the broadly excavate mesosternum ; legs comparatively short and stout, sparingly but coarsely
(the femora deeply) punctured, greenish-sneous much tinged with cyaneous, the basal half of the femora

350 HETEROMERA.

and tibiee in some examples more or less reddish, the tarsi cyaneous ; the first joint of the posterior tarsi
very short, not half the length of the apical joint.
Length 144-15 millim.; breadth 5 millim. ( 2.)

Hab. Nicaracvua, Chontales (Belt); Panama, Volcan de Chiriqui 3000 feet (Cham-
pton), Chiriqui (bbe).

Four female examples. _S. tinctipes in general facies and size approaches S. exaratum ;
but is at once separated by the short legs and antenne, more transverse eyes, much
larger thorax, the flat interstices and the somewhat pointed apices of the elytra, &c.
The*example from Nicaragua differs from the others in having the head and thorax
more finely and more closely punctured, the disc of the latter only very shallowly
impressed before the base; in other respects it agrees exactly. An allied species from
Brazil is contained in Mr. F. Bates’s collection.

A Chiriqui specimen is figured.

Elytra rather broad, somewhat depressed, irregularly foveolate-punctate to the middle
and thence to the apex sulcate, transversely impressed on the disc before and behind
the middle; eyes small ; upper surface bright greenish-bronze.

16. Strongylium exaratum. (Tab. XV. fig. 7, 2.)

Elongate, depressed, bright greenish-eeneous, sometimes with a slight cupreous tint. Head coarsely, very
irregularly, and not very closely punctured, shallowly longitudinally impressed between the eyes, the
latter rather small and widely separated in both sexes ; antenne long, in the male reaching to about the
first fourth of the elytra, slender, the joints uarrow and subparallel, 3 and 4 long, subequal, the penulti-
mate joint fully twice as long as broad, the apical joint much longer than the tenth, joints 1-5 cyaneous,
the rest dull black; prothorax rather small, strongly transverse, feebly convex, the sides immarginate,
somewhat rounded, and narrowing very little more in front than behind, the apex nearly straight, the
base slightly sinuate and strongly margined, the hind angles subrectangular, the anterior angles rounded,
the disc very distinctly canaliculate (deeply so towards the apex), and usually with a shallow transverse
impression on each side above the deep basal foves, the surface coarsely, sparingly, and very irregularly
punctured ; scutellum triangular, almost smooth; elytra long, rather broad, depressed, subparallel to
beyond the middle, the disc shallowly transversely impressed a little before and again a little behind the
middle, the scutellar region also a little depressed, striate-punctate, the stris coarsely punctured at the
extreme base, the third to the eighth thence to beyond the middle with coarse irregular excavations (the
first and second for the same distance with scattered fine oblong impressions) and much interrupted, and
beyond this to the apex all with very fine and shallow oblong punctures, the interstices smooth, irregularly
raised towards the sides from a little below the base to the middle and here and there obliquely confluent,
and thence to the apex convex, at the apex itself strongly subangularly raised; beneath more shining,
greenish-zneous much tinted with golden, very sparingly and minutely punctured, the sides of the meta-
sternum (sparingly) and the flanks of the prothorax coarsely so; legs long, rather slender, the femora
sparingly and shallowly, the tibize closely and roughly, punctured, greenish-zneous with a slight cyaneous
tint, the tarsi bluish-black ; the first joint of the posterior tarsi long, as long as the apical joint; anterior
and intermediate tibie very slightly curved in the male (straight in the female), the anterior tarsi also
distinctly dilated and the fifth ventral segment shallowly excavate in the middle behind in this sex.

Length 13-16 millim.; breadth 4-53 millim. (¢ 9.)

Hab. Guatemata, Purula 4000 feet, Panima in Vera Paz (Champion).

Numerous examples, all females but two. This species somewhat resembles

STRONGYLIUM. 301

S. viridipes, but cannot be satisfactorily compared therewith; it will be readily identi-
fied from our figure.

S. exaratum inhabits the humid virgin forest-region of the Guatemalan Atlantic
slope.

Elytra a little raised towards the base, finely striate-punctate, subfoveolately so in their
anterior half towards the sides, with a depression below the scutellum and two
transverse impressions on the disc, the humert prominent ; eyes rather large ; upper
surface very shining, bright greenish-eneous.

17. Strongylium fossifrons, (Tab. XV. fig. 8, ¢.)
Strongylium fossifrons, Mikl. Monogr. p. 177; Act. Soc. Fenn. viii. part 1, p. 285°.
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).—Cotomsia (coll. Mot-
schulsky 1).

Numerous examples of a Strongylium collected by myself in Chiriqui agree fairly well
with the description of S. fossifrons; our specimens appear, however, to have the
thorax more sparingly punctured, and to be rather smaller in size, viz. 10$-12 millim.
in length (Maklin gives 133 millim.); these examples have only the base of the
femora red.

Of the species here enumerated S. fossifrons can only be satisfactorily compared with
S. exaratum, from which its smaller size, narrower shape, more brilliantly metallic
surface, short head and thorax, more convex and transverse eyes, and other characters
readily separate it; the elytra have two transverse depressions across the disc, and the
sutural region also depressed, as in that species, but are more convex at the base; the
thorax has two deep transverse impressions on each side of the disc, and the basal fovez

very deeply impressed.

Elytra exceedingly coarsely and irregularly foveolate-striate throughout, a little flat-
tened on the disc, widest at the base, the humeri prominent ; eyes small or mode-

rate; upper surface bright greenish-eneous, with a more or less cupreous tinge.

18. Strongylium chiriquense.

Moderately elongate, slightly convex, bright greenish-eneous. Head exceedingly coarsely and rugosely punc-
tured, shallowly longitudinally impressed between the eyes, the latter small, feebly convex, and widely
separated ; antenne rather slender, widening outwardly, joints 3 and 4 long, subequal, 7 much wider than
6, triangular, 8 the length of 7, about as broad as long (9-11 missing), 1-6 and the base of 7 more or less
testaceous slightly stained with zneous, 8 and the outer half of 7 dark dull cyaneous; prothorax broad,
strongly transverse, moderately convex, the sides immarginate, somewhat strongly rounded, narrowing in
front, and armed in the middle with a very short indistinct tooth, the base and apex nearly straight, both
very strongly margined, the anterior angles obtuse, the posterior angles subacute, the disc canaliculate and
with a very large and rather deep rounded excavation on each side just above the deep basal foveze, the
surface very uneven and exceedingly coarsely and somewhat sparingly punctured, the punctures more

352 HETEROMERA.

crowded at the sides; scutellum triangular, sparingly punctured; elytra rather short, somewhat depressed
on the disc, widest at the base, the sides nearly straight to beyond the middle, the surface from the base
to the apex with irregular and much interrupted rows of very coarse and deep excavations, the excavations
punctiform at the extreme base and there arranged in more regular rows, the interstices strongly and
irregularly raised towards the base and sides and here and there transversely or obliquely confluent, the
third forming an elevated ridge near the base, smooth, the apices slightly pointed ; beneath distinctly
pubescent, shining, golden-bronze, the sides here and there tinted with greenish, somewhat finely and
sparingly punctured, the flanks of the prothorax exceedingly coarsely and the sides of the metasternum
coarsely and confluently so; legs stout, rather short, the femora very coarsely, the tibiee roughly and more
finely, punctured, brassy-cupreous, the basal half of the tibia more or less red, the tarsi golden-green, the
first joint of the posterior tarsi much shorter than the apical joint.
Length 113 millim.; breadth 4 milim. ( 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

One example. This species closely resembles S. variicorne in the sculpture of the
elytra; but is readily separated by the broader shape, much stouter legs, very coarsely
punctured femora, broader and shorter thorax (the sides of which are much more
rounded), the pointed elytral apices, and the pubescent, more coarsely punctured, and
very differently coloured under surface.

19. Strongylium variicorne. (Tab. XV. fig. 9, 2.)

Moderately elongate, slightly convex, bright greenish-sneous, the head and thorax and the base of the elytra
slightly tinted with cupreous. Head very coarsely and rugosely punctured, very shallowly longitudinally
impressed between the eyes, the latter small, feebly convex, and rather widely separated ; antennee very
slender, widening outwardly, comparatively rather short (Q), joints 3 and 4 long, subequal, 5-7 subtri-
angular, 8-10 subparalle!, about equal in length and width, longer than broad, 11 oblong ovate, 1 sneous,
2-4, the basal half of 5, the apical half of 10, and 11 testaceous, the rest cyaneous; prothorax transverse,
convex, the sides immarginate, a little rounded, slightly narrowing in front, and armed with a very short
indistinct tooth in the middle, the base slightly sinuate, the apex straight, both somewhat strongly
margined, the anterior angles obtuse, the hind angles rectangular, the basal foves very deep, the disc
shallowly canaliculate and with a very irregular shallow excavation on each side about the middle, the
surface very uneven and very coarsely and irregularly punctured, the punctures here and there confluent ;
scutellum triangular, nearly smooth, cupreous in tint ; elytra moderately elongate, somewhat depressed on
the disc, subparallel in their basal half, the surface from the base to the apex with irregular and much
interrupted rows of very coarse and deep excavations, the excavations scarcely finer at the apex and
at the base with punctiform impressions within, the interstices (the third especially) more or less strongly
raised and very irregularly costate at the base, and obliquely or transversely confluent on the disc,
smooth ; beneath glabrous, very shining, bright metallic purplish-cyaneous, the sides greenish-eneous
with golden tints, very minutely and very sparingly punctured, the flanks of the prothorax and the sides
of the metasternum very coarsely so; legs slender, moderately long, the femora coarsely but sparingly,
the tibiz roughly and closely, punctured, greenish-wneous or golden-green, the femora at or towards
the base, and the basal half of the tibie red, the tarsi and the extreme apex of the tibie cyaneous, the
first joint of the posterior tarsi very much shorter than the apical joint.

Length 94-104 millim.; breadth 27-33 millim. ( 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).
Two examples, apparently both females. Of the species here enumerated, S. varii-

corne most nearly resembles S. costaricense ; it differs in the head being much more
rugosely punctured, the eyes smaller and more widely separated, the antenne more

STRONGYLIUM. 353

slender towards the base, the thorax more coarsely and closely punctured, the elytra
with the excavations still more intricate and irregular, and the interstices subcostate
towards the base and raised and here and there obliquely confluent behind, the first
joint of the posterior tarsi shorter, &c. S. variicorne is, however, somewhat closely allied
to the Brazilian S. leproswm (Germ.), Makl., but differs in the much coarser excava-
tions of the elytra and in the rows of excavations extending from the base to the apex.
The male will doubtless prove to have much longer antenne and longer and slightly
curved anterior tibize, as in the corresponding sex of that species.

20. Strongylium costaricense. (Tab. XV. fig. 10, o.)

Moderately elongate, slightly convex, greenish-sneous, the head and prothorax with golden and cupreous
tints, shining. Head coarsely and subrugosely punctured, the vertex a little smoother, shallowly longi-
tudinally impressed between the eyes, the latter moderately large and separated by a narrow space ;
antenne ( ¢) rather short, scarcely reaching to the first fourth of the elytra, slender, subfiliform, joints 3
and 4 long, subequal, the penultimate joints much longer than broad and but little widened outwardly,
the apical joint oblong ovate, ferruginous, joints 5-7 a little darker and tinged with cyaneous, the basal
joint of a golden-green tint; prothorax transverse, but not strongly so, moderately convex, the sides
immarginate, straight behind, a little rounded and narrowing in front, and armed with a short tooth
about the middle, the apex nearly straight, the base slightly sinuate, both strongly margined, the anterior
angles rounded, the hind angles subrectangular, the disc distinctly canaliculate (more deeply so at the base
and apex), and with a deep transverse impression on each side a little above the broad deep basal fovee,
and another shallower one on each side a little before the middle, the surface with scattered very coarse
punctures; scutellum triangular, almost smooth, cupreous in tint; elytra moderately long, the disc a
little flattened from about the basal third to the apex, very gradually narrowing from the base, the sides
almost straight to beyond the middle, the surface from the base to the apex with irregular and much inter-
rupted rows of very coarse and deep excavations, the excavations coarsest and deepest and here and there
confluent on the middle of the disc and towards the sides, more crowded at the base, and finer and shallower
(but not placed in deep grooves) at the apex, the interstices quite smooth and shining; beneath more
shining, bright greenish-zneous, much tinted with golden, almost glabrous, moderately finely and rather
sparingly, the flanks of the prothorax and the sides of the metasternum and side-pieces very coarsely,
punctured ; legs rather long, moderately slender, the femora and tibie roughly and rather closely punc-
tured and golden-cupreous in tint, the tarsi cyaneous, the first joint of the posterior tarsi as long as the
apical joint; anterior tibise very slightly curved, and the fifth ventral segment shallowly transversely
impressed in the middle behind, in the male.

Length 12 millim.; breadth 4 millim. (<.)

Hab. Costa Rica (Van Patten).

One example. ‘his species is allied to S. viridipes, from which it is distinguished
by the posteriorly flattened disc and coarser excavations of the elytra (the excavations
not placed in deep grooves at the apex), the differently coloured and shorter antenne
(in the male), the more coarsely punctured thorax (the sides of which are toothed in the
middle), the roughly punctured femora, the shorter tarsi, &c.

Other allied undescribed forms inhabit Tropical South America.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1888. 977

354 HETEROMERA.

Elytra long, coarsely foveolate-striate to the middle, and thence to the apex deeply
sulcate ; eyes small ; prothorax conical ; upper surface cyaneous, moderately shining ;
fourth and fifth ventral segments red ; size large.

21. Strongylium conicicolle. (Tab. XIV. fig. 25, 2 .)
Strongylium conicicolle, Makl. Monogr. p. 839; Act. Soc. Fenn. viii. part 1, p. 447, t. 1.£.3
(antenna), & t. 3. f. 22°.

Hab. Nicaragua, Chontales (Janson) ; Costa Rica (Sallé); Panama, Bugaba, Volcan
de Chiriqui (Champion), Veragua’.

We figure a female example from Bugaba.

Elytra convex, very finely and lightly striate-punctate, widest at the base, the humeri
prominent ; eyes small; upper surface unicolorous bright bronze.

22. Strongylium colombianum. (Tab. XV. fig. 11, 2.)

Elongate, rather convex, entirely bright bronze, sometimes with a golden tinge. Head rather finely and some-
what closely punctured, shallowly impressed between the eyes, the latter small and very widely separated ;
antenne (@ ) short, passing some little distance beyond the base of the prothorax, gradually widening
outwardly, joint 4 the length of 3, but widening at the apex, the penultimate joints rather longer than
broad, the apical joint ovate, joints 1-4 cyaneous or violaceous, 5-11 piceous, the extreme apex dull
ferruginous ; prothorax large, broad, convex, strongly transverse, the sides immarginate, narrowing a little
anteriorly, almost straight or slightly sinuous behind, and armed with a short tooth about the middle, the
anterior angles rounded, the hind angles rectangular or subacute, the base slightly sinuate, the apex
straight, the basal fovese narrow and shallow, the disc unimpressed, the surface rather finely (but deeply)
and closely punctured ; scutellum subtriangular, smooth ; elytra long, a little flattened on the disc, widest
at the base, the sides nearly straight in their basal half, rounding and gradually narrowed beyond, the base
rather strongly impressed on each side within the somewhat prominent humeri, the suture narrowly
depressed for a short distance at the base, finely striate-punctate, the punctures closely placed, rather
coarser towards the sides and base, and becoming finer towards the apex, the interstices flat throughout and
minutely and sparingly (sometimes more closely) punctured; beneath glabrous, bright greenish-seneous,
the sides and margins of the ventral segments more or less reddish-brown, sparingly but very distinctly
punctured, the sides of the metasternum and the flanks of the prothorax very coarsely so; prosternum
convexly raised at the apex ; legs short, rather stout, somewhat sparingly but rather coarsely punctured,
neous or greenish-seneous, the tarsi darker ; the first joint of the posterior tarsi very short, only alittle
longer than the second joint and not nearly half the length of the apical one,

Length 12-14 millim.; breadth 33-4 millim. (9.)

Hab. Panama, Bugaba (Champion).—CotomB1a, Bogota (coll. F. Bates).

The description is taken from three examples, one from the State of Panama and two
from Southern Colombia, apparently all females. S. colombianum cannot be compared
with any other species inhabiting our region; in its general shape it somewhat
approaches the Brazilian S. flavicrus (Germ.), though wholly different in colour and
sculpture; the exceedingly short first joint of the hind tarsi (still shorter than in
S. flavicrus) is a noteworthy character. A closely allied undescribed form from
Chanchamayo, Peru, is contained in Mr. F. Bates’s collection.

The Bugaba specimen is figured.

STRONGYLIUM. 305

Elytra very long and attenuate, finely striate-punctate, here and there depressed along

the suture, the apices obliquely truncate; antenne short, subclavate; eyes small;
upper surface bright bronze.

23. Strongylium langurioides. (Tab. XV. fig. 12,2.)

Very elongate, narrow, moderately convex, bright bronze, with a slight golden tint. Head coarsely and rather
closely punctured, the intraocular space indistinctly impressed in the middle; eyes rather small, a little
convex, widely separated ; antenns( ? ) short, scarcely passing the base of the prothorax, subclavate, very
greatly widened outwardly, joints 3 and 4 comparatively short, subequal, 5-7 subtriangular, each much
wider than the preceding, 8-10 subcyathiform, the width of 7, transverse, 9 and 10 very strongly so, 11
much narrower but longer than 10, short ovate, 1-4 reddish-testaceous, 1 tinged with cyaneous, 5-10 dull
piceous, 11 in greater part pale testaceous ; prothorax cylindrical, as long as broad, the sides almost straight,
very slightly narrowing in front, the base a little sinuate and strongly margined, the apex straight, the
anterior angles rounded, the hind angles rectangular, the basal fovee deep, the disc with a rounded
impression on each side behind the middle and a little flattened before the base, the surface sparingly and
coarsely punctured ; scutellum triangular, smooth; elytra very long, attenuate, gradually narrowing from
the base, the apices a little produced and obliquely truncate, shallowly but somewhat coarsely striate-
punctate, the punctures becoming almost obsolete at the apex, the interstices smooth and flat throughout,
the disc a little flattened and with a row of three large shallow oblong impressions (the first some distance
below the base), beyond which are one or two irregular (perhaps accidental) excavations, on either side
near the suture; beneath greenish-zneous, the sides, the ventral segments at the base, and the coxa,
suffused with reddish-brown, glabrous; legs rather long and slender, the femora smooth, eneous, the
basal half of the femora and the tibiz in great part reddish, the tarsi bluish-black, the first joint of the
posterior tarsi shorter than the apical joint.

Length 103 millim.; breadth 24 millim. ( 2.)

Hab. Nicaraaua, Chontales (Belt).

A single example. This remarkable species bears a very close resemblance to a
Languria, even to the truncate apices of the elytra and the clavate antenne. The
elytra have a longitudinal series of large shallow depressions on each side of the
suture.

Elytra finely striate-punctate, foveolate-striate at the sides towards the base, the punctures
almost obsolete at the apex; upper surface obscure greenish-eneous, the elytra
cupreo-eneous, shining ; form cylindrical.

24. Strongylium lucidum.
Strongylium lucidum, Mik]. Monogr. p. 175 ; Act. Soc. Fenn. vii. part 1, p. 283°.

Hab. Costa Rica (Mus. Berol.').

Unknown to me. Apparently an ally of the Brazilian S. aurichalceum (Germ.).

222 2

356 . HETEROMERA.

Elytra foveolate-striate to beyond the middle and thence to the apex sulcate ; prothoraz
subquadrate ; eyes large; upper surface dull greenish-cupreous ; under surface
greenish-violaceous, the fifth ventral segment red.

95. Strongylium ventrale. (Tab. XVI. fig. 1, 2 -)

Elongate ovate, slightly convex, rather dull, greenish-eneous, with a cupreous tint, the prothorax obscure
reddish-brown, the head also in part reddish. Head very closely and coarsely punctured ; eyes large
and narrowly separated; antennz ( @ ) short, rather strongly widened outwardly, joint 4 about the length
of but distinctly wider than 3, subtriangular, joints 5-7 each widened almost from the base, subequal,
8-10 decreasing a little in length, 10 about as broad as long, 11 ovate, and considerably longer than 10,
1-4 cyaneous, the rest dull bluish-black; prothorax subquadrate, broader than long, a little flattened
on the disc, the sides indistinctly margined (the margin not visible from above), nearly - straight,
scarcely narrowing in front, and armed in the middle with a distinct tooth, the base a little sinuate, the
apex straight, the anterior angles rounded, the hind angles slightly divergent and subacute, the disc
shallowly canaliculate (more distinctly so towards the apex), and very deeply impressed in the middle
before the base, the basal fovee: very deep, the surface uneven and very coarsely and rather closely punc-
tured; scutellum subtriangular, sparingly punctured; elytra long, slightly convex, widest in the middle,
narrowing a little towards the base, striate-punctate, the punctures from the base to a little beyond the
middle (equally from the suture to the lateral margin) in the form of coarse rounded or oblong excavations
which are here and there longitudinally confluent, and thence to the apex (abruptly) very fine and shallow,
the interstices smooth, from the base to beyond the middle a little raised, and here and there transversely
confluent, and thence to the apex rather convex; beneath and the epipleure bright cyancous, the fifth
ventral segment, and the sides of the preceding segment broadly, reddish-testaceous, glabrous, sparingly but
somewhat coarsely punctured, the sides of the metasternum and the flanks of the prothorax very coarsely
so; legs rather short, coarsely punctured, more or less cyaneous in tint; the first joint cf the posterior
tarsi long, as long as the apical joint.

_ Length 112 millim.; breadth 4 millim. ( 2.)

Hab. Panama (coll. F. Bates).

One example. S. ventrale cannot be satisfactorily compared with any other species |
noticed here. It agrees with S. auratum in the reddish-testaceous apex of the venter,
though wholly differing in the sculpture of the elytra, the shape of the thorax, sub-
approximate eyes, &c., and also by its very much smaller size.

Elytra long, with rows of scattered irregular fovee ; eyes very large; prothorax closely
and rather coarsely punctured, canaliculate ; upper surface dull bronze-black, the
elytra more shining, testaceous, the fovew black ; size large. —

26. Strongylium cribripes. (Tab. XIV. fig. 24, 2.)
Strongylium cribripes, Makl. Monogr. p. 167; Act. Soc. Fenn. viil. part 1, p. 2757.
Hab. Mexico‘, Santecomapan, Cordova (Sal/é); Nicaracua, Chontales (Belt, Janson);
Panama, Chiriqui (Z7dtsch).

In the male of this species, as noticed by Maklin, the metasternum is densely clothed
with short adpressed hair in the middle behind, and the fifth ventral segment broadly
and deeply impressed.

An example from Chontales is figured.

STRONGYLIUM. 357

Elytra comparatively short and convex, very finely and lightly striate-punctate ; antenne
quite slender; eyes small; prothorax narrow, almost smooth; upper surface
shining, greenish-violaceous, the elytra testaceous.

27. Strongylium frontale. (Tab. XV. fig. 13, 2.)

Elongate ovate, convex, greenish-violaceous, shining. Head coarsely and closely punctured, the vertex much
more sparingly so, deeply longitudinally impressed between the eyes, of a greenish-golden tint, the basal
half dark violaceous, the eyes feebly convex and rather widely separated; antenne (Q) moderately
long, slender, very gradually widening outwardly, joints 3 and 4 long, subequal, 4 not wider than 3,
5-9 gradually decreasing in length, 9 and 10 subequal, and each longer than broad, 11 ovate, and a little
longer than 10, 1-5 greenish-wneous, 6-11 bluish-black, dull, the apical half of the eleventh testa-
ceous; prothorax comparatively narrow. convex, rather broader than long, the sides immarginate, a little
rounded, and very slightly narrowing in front, the anterior angles rounded, the hind angles subacute
and outwardly directed, the base and apex nearly straight and moderately strongly margined, the
basal fovee small but deep, the disc canaliculate behind, and impressed in the centre before the
base, the surface with fine very widely scattered punctures, greenish-zneous, tinted with dark
violaceous; scutellum triangular, smooth, bluish-violaceous; elytra somewhat strongly convex, rather
abruptly declivous behind, moderately elongate, subparallel to beyond the middle, finely and lightly
striate-punctate, the strie gradually becoming finer posteriorly, and nearly obsolete at the apex, the
interstices smooth and perfectly flat throughout, the surface testaceous, the suture entirely and the lateral
margins at the apex narrowly piceous; beneath violaceous, glabrous, the metasternal side-pieces and
the flanks of the prothorax rather coarsely punctured, the rest almost smooth; legs rather slender,
moderately long, sparingly punctured, greenish-violaceous ; first joint of the posterior tarsi shorter than
the apical one.

Length 11 millim.; breadth 4 millim. ( 2.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One example. This species in its system of coloration resembles 8. gerstaeckert and
S. belti: it is readily separated from both by the very slender legs and antenne; the
more cylindrical, smoother, and relatively narrower thorax; the more convex, shorter,
and smoother elytra, &c.

Elytra longer and less convex, finely striate-punctate; antenne stouter ; eyes small ;
upper surface shining, more or less cyaneous or violaceous, the elytra testaceous.

98, Strongylium gerstaeckeri. (Tab. XIV. fig. 22, 9 .)
Strongylium gerstaeckeri, Makl. Monogr. p. 169; Act. Soc. Fenn. viii. part 1, p. 277°.

Hab. Mexico, Cordova, Catemaco (Sallé); GUATEMALA, Senahu (Champion); Nica-
RAGUA, Chontales (Belt, Janson); Costa Rica?; Panama (coll. F. Bates), Volcan de
Chiriqui (Champion).

This species varies considerably in size (13-202 millim.), and in the intensity of the
punctuation and also in the colour of the elytra. Maklin describes the elytra of the
male as pallid-testaceous, and those of the female as rufo-testaceous, but this is not
borne out by the long series before me. Chiriqui examples are very large, and have
the elytra very shallowly and very finely striate-punctate; others from Nicaragua have
the elytra darker and of a redder tint, and more coarsely striate-punctate; and one

358 HETEROMERA.

from Guatemala has the elytra sculptured as in Chiriqui specimens, but with the thorax
much more finely punctured. The two examples from Mexico in the Sallé collection
(one of which is erroneously labelled S. impressicolle, Makl.) are much smaller in
size (12 millim.), but scarcely differ in other respects; one of these has the head and
thorax greenish-zneous in tint.

The single specimen from Panama in Mr. F. Bates’s collection resembles those from
Chiriqui, but differs in having the elytra more coarsely and more uniformly striate-
punctate, the punctures being very little finer at the apex; it doubtless represents a
variety of the same species.

An example from Chiriqui is figured.

29, Strongylium belti. |
Elongate, subcylindrical, greenish-szeneous or cyaneous, shining. Head coarsely and irregularly, but somewhat
closely, punctured, shallowly longitudinally impressed between the eyes, the latter rather small and widely
separated in both sexes; antenne in the male rather long and slender, reaching to about the first third of
the elytra, in the female much shorter and stouter, joints 3 and 4 subequal, 5-10 differing very little in
length or width (in the male very much longer than broad, and very little wider at the apex than at the
base, in the female slightly longer than broad), black with the base more or less greenish-eneous (in one
example dark ferruginous outwardly); prothorax transverse, convex, the sides immarginate, rounded, and
narrowing anteriorly, and a little sinuous behind, the apex straight, the base slightly sinuate, both very
strongly margined, the anterior angles obtuse, the hind angles rectangular, the basal foves very deep (in
one example shallower), the disc very deeply transversely impressed and obsoletely canaliculate immediately
before the base, the surface coarsely and deeply, but not very closely, punctured ; scutellum subtriangular,
flat, smooth, greenish-ezneous or cyaneous; elytra moderately long, subparallel to beyond the middle,
striate-punctate, the punctures fine, or rather coarse and crenate, and approximate, the interstices smooth,
flat, or very feebly raised, and more convex towards the sides and apex, the surface entirely testaceous ;
beneath glabrous, bright cyaneous, very sparingly and minutely punctured, the sides of the metasternum
with scattered coarse impressions, the flanks of the prothorax very coarsely punctured ; legs comparatively
rather short, sparingly but somewhat coarsely punctured, greenish-eneous or cyaneous, the tarsi piceous,
the first joint of the posterior tarsi shorter (more distinctly so in the female) than the apical joint; the
coxe and the inner edge of the femora (that of the posterior pair indistinctly) clothed with short hair,
and the anterior tibize very slightly curved, in the male, the fifth ventral segment unimpressed in this sex.
Length 103-11 millim.; breadth 3-33 millim. (d @-)

Hab. Nicaraaua, Chontales (Belt, Janson).

Two examples. This species can only be compared with S. gerstaeckeri, from which
it differs in its smaller size, much narrower shape, the more coarsely punctured head
and thorax, the rectangular (not acute and outwardly directed) hind angles of the
thorax, &c. The femora have their inner edge more or less pubescent in the male, as
in S. gerstaeckert. WS. belti varies considerably in the intensity of the punctuation of
the upper surface; in the male example the elytra have the punctures much coarser,
and the interstices a little convex, and the thorax more coarsely and more sparingly
punctured ; S. gerstaeckeri varies in a similar manner.

STRONGYLIUM. 359

Elytra lightly striate-punctate ; eyes small; upper surface shining, greenish-ceneous,
the elytra reddish-brown with a translucent greenish-eneous tinge.

30. Strongylium viriditinctum. (Tab. XVI. fig. 4, 2.)

Elongate, subcylindrical, greenish-eeneous, moderately shining. Head coarsely and rather sparingly punctured,
deeply longitudinally impressed between the eyes, much suffused with cupreous, the eyes small and
somewhat widely separated; antenne (9) rather stout, joint 4 about as long as, but stouter than, 3,
subtriangular, joints 5-10 about equal in length and breadth, wider than 4, 9 and 10 almost as wide at
the base as at the apex, all longer than broad, 11 oblong ovate, 1-4 more or less seneous, the rest dull
black ; prothorax subcylindrical, nearly as long as broad, subquadrate, the sides immarginate, very slightly
narrowing and rounded in front, and sinuate behind immediately before the acute outwardly-directed
hind angles, the anterior angles rounded, the base slightly sinuate, and very deeply grooved within
between the spaces usually occupied by the foves, the latter not defined, the apex straight, the apical
margin very deeply grooved within in the middle, the disc unimpressed, the surface sparingly and rather
coarsely and deeply punctured, greenish-eneous; scutellum subtriangular, smooth, eneous; elytra long,
parallel to beyond the middle, moderately convex, finely striate-punctate, the punctures approximate,
and becoming finer and shallower towards the apex, the interstices flat, feebly convex at the apex, and
sparingly but quite distinctly punctured, the surface (including the epipleure) reddish-brown, with a
translucent greenish-seneous tinge; beneath glabrous, very shining, greenish-eeneous, very sparingly and
finely punctured, the sides of the metasternum and the flanks of the prothorax with scattered coarse
impressions ; legs comparatively rather short, entirely greenish-zneous, the femora sparingly and some-
what coarsely, the tibise more closely, punctured, the first joint of the posterior tarsi shorter than the
apical joint.

Length 14} millim.; breadth 5 millim. ( 2.)

Hab. Guatemata, Zapote 2500 feet (Champion).

One example. This species closely resembles S. eminens: compared with the corre-
sponding sex of that insect it differs in having the epistoma more coarsely and the
vertex more sparingly punctured, the eyes very much smaller and widely separated, the
thorax less strongly transverse and more finely punctured, the elytra comparatively
much shorter, with the rows of punctures finer and placed upon almost obsolete strie,
and the interstices flat (rather convex in S. eminens), and also in its smaller size.

Elytra very long, punctate-striate, the punctures subapproaimate, the interstices slightly
conver ; eyes large ; upper surface bright greenish-eneous, the elytra reddish-brown
with a translucent greenish-eneous tinge ; size large.

31. Strongylium eminens. (Tab. XIV. fig. 21, ? .)

Strongylium eminens, Makl. Monogr. p. 266; Act. Soc, Fenn. vil. part 1, p. 374°.

Hab. Mexico !, Cordova (Sai/é).
Three examples of this apparently rare species are contained in the Sallé collection.

360 HETEROMERA.

Elytra long, with rows of approximate transverse impressions, the interstices a little
convex ; eyes small, distant ; upper surface moderately shining, greenish-eeneous Or
cupreous, the prothorax usually of a brilliant golden-cupreous tint ; under surface
bright metallic green or violaceous, the fourth and Jifth ventral segments red ;

size large.

32. Strongylium auratum. (Tab. XVI. fig. 2, 3.)
Stenochia aurata, Casteln. Hist. Nat. Ins. Col. ii. p. 240°.
Stenochia lebasii, Dej. Cat. 3rd edit. p. 232°.
Stenochia hilaris (Chevr.), Dej. Cat. 1. c.*
Strongylium auratum, Mékl. Monogr. p. 293; Act. Soc. Fenn. viii. part 1, p. 401°.

Hab. Mexico?4, S.W. Yucatan, Cordova, Tuxtla, Chiapas (Sallé), Chilpancingo,
Almolonga, Cholula, Jalapa, Tapachula (Hoge); Brivish Honpuras, R. Sarstoon
(Blancaneaux); Guatemata, Las Mercedes, Panzos, San Juan in Vera Paz (Champion) ;
Nicaragua, Chontales (Belt, Janson); Costa Rica (coll. F. Bates); Panama (coll. F.
Bates), Chiriqui (Ribbe).—CotomBia1? 4; Bontvia‘.

This insect is abundant throughout the forest-region of Central America, and extends
southwards to Bolivia: it ascends to an elevation of about 3000 feet. S. auratum is
very probably a variety of S. hemorrhoidale (Fabr.) (=Stenochia viridis, Casteln.,
= Helops auricollis, Germ.), and is indeed so labelled in Mr. F. Bates’s collection; but
as none of our examplesare referable to the latter, I treat it as distinct ; both are found
in Southern Colombia. A male example from San Juan is figured.

Elytra long, minutely striate-punctate, almost smooth ; eyes very large ;
surface entirely dull black ; size large.

33. Strongylium atrum. (Tab. XV. fig. 14, 3.)

Elongate, rather depressed, entirely black, opaque. Head closely, coarsely, and subequally punctured, almost
unimpressed between the eyes, the latter very large and subapproximate ; antennw (3) long, rather
slender, very gradually widening outwardly, joints 3 and 4 moderately long, subequal, 5-10 all very much
longer than broad, gradually* decreasing in length, 11 rather longer than 10, widening outwardly, and
obliquely truncate at the apex; prothorax nearly as long as broad, rather convex, subquadrate, the sides
immarginate, nearly straight, only very slightly narrowing in front, the base and apex nearly straight,
and very feebly margined, the anterior angles rounded, the hind angles rectangular, the basal fovez
scarcely indicated, the surface without depressions, very ‘closely, rather coarsely,.and equally punctured,
the punctures shallow; scutellum triangular, very distinctly punctured; elytra long, subparallel to beyond
the middle, depressed, exceedingly finely and shallowly striate-punctate, the punctures oblong in form,
rather distant one from another, and becoming almost obsolete at the apex, the interstices perfectly flat
throughout, and very finely (but quite distinctly) punctured, the apices a little produced; beneath a little
more shining, finely and sparingly punctured, the flanks of the prothorax and the sides and side-pieces of
the meso- and of the metasternum coarsely so; the fifth ventral segment slightly depressed in the middle
behind in the male; legs long, rather coarsely punctured ; first joint of the posterior tarsi long, as long as
the apical one; prosternum broad, abruptly declivous.

Length 164 millim.; breadth 53 millim. (¢.)

Hab. Mexico, Ventanas in Durango (Hége).

STRONGYLIUM. 36]

One example. This species is distinguished by its uniform dull black colour and
depressed form. JS. atrwm cannot be compared with any other species noticed here; it
bears a certain superficial resemblance to some members of other groups, ¢@. g. to
Lhinandrus obsoletus, &c.

Elytra finely punctate-striate; eyes quite small; upper surface greenish-eneous,
the elytra dull red; size rather large.

34. Strongylium opacipenne. (Tab. XV. fig. 15, 3.)

Moderately elongate, rather broad, somewhat depressed, greenish-zneous with a slight golden tint, not very
shining. Head closely and rather coarsely punctured, more sparingly so on the vertex, shallowly longi-
tudinally impressed between the eyes; eyes small, very widely separated ; antennse moderately long,
rather rapidly widening outwardly, joints 3 and 4 long, subequal, 5-8 more or less subtriangular, 9 and 10
about as long as broad in the female, slightly longer in the male; prothorax strongly transverse, broad,
a little broader behind in the female, feebly convex, the sides immarginate (rarely with traces of a fine
obsolete margin), straight, narrowing from the base, rather more rapidly so in the female, the apex nearly
straight, the base slightly sinuate, the hind angles subacute, the anterior angles obtuse, the basal fovese
deep, the disc with a shallow indistinct impression on each side about the middle, and a more distinct one
in the centre at the base, evidently canaliculate towards the base, indistinctly so in front, the surface
rather sparingly and coarsely punctured, moderately shining; scutellum broad, subtriangular, slightly
punctured, greenish-zneous, shining; elytra moderately long, somewhat depressed, rather broad, still
broader in the female, subparallel in their basal half, with rows of fine closely placed punctures placed
upon fine shallow strixe, the punctures coarser at the extreme base and a little more scattered at the apex,
the interstices nearly flat towards the base, slightly convex behind, and closely and very distinctly punc-
tured, the surface rather dull, red, sometimes very slightly suffused with greenish; beneath more shining,
greenish-zneous with cyaneous tints, finely and sparingly punctured, the flanks of the prothorax coarsely
so, the metasternum pubescent in both sexes; legs moderately long, greenish-sneous, rather closely punc-
tured, the first joint of the posterior tarsi rather shorter than the apical one ; the anterior and intermediate
tibie a little curved in both sexes, scarcely more strongly so in the male; fifth ventral segment in the
male unimpressed, and like that of the female.

Length 123-17 millim.; breadth 43-7 millim. (3 9.)

Hab. Mexico, Cerro de Plumas (//ége).

Many specimens. This species is distinguished by its rather dull surface and
greenish-eneous colour; the elytra red, with rows of fine punctures placed upon
very shallow strie, and the interstices a little convex and closely and very distinctly
punctured.

From 8S. héfpneri and its varieties it is at once separated by its more elongate and
less convex shape, dull elytral surface, different sculpture, &c.

Elytra finely punctate-striate, the interstices conver; eyes quite small; upper surface
dull bluish-green, the suture, base, and lateral margins of the elytra broadly red.

35. Strongylium bivittatum. (Tab. XV. fig. 16, 3.)
Moderately elongate, rather broad, convex, dull bluish-green. Head broad behind, rather narrowed in front,
very closely, coarsely, subrugulosely punctured, indistinctly impressed between the eyes; eyes small, very
widely separated; antenne (3) rather short, moderately stout, widening outwardly, joints 3 and 4

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1888. SAA

362 HETEROMERA.

subequal, 8 about as long as broad, 10 subtransverse, pluish-black ; prothorax strongly transverse, very
broad, subquadrate, not very convex, the sides obsoletely margined (visibly so from above), nearly straight
(though slightly sinuous) in their basal half, and narrowing immediately before the rounded anterior
angles, the apex nearly straight, the base slightly sinuate, the basal fover very shallow, the surface very
closely, somewhat coarsely, subequally punctured, a narrow very slightly impressed line, ending before
and behind in a deeper groove, on the disc, and a space near the subrectangular hind angles, smoother ;
scutellum broad, subtriangular, distinctly punctured, greenish-weneous, shining; elytra convex, moderately
long, subparallel to beyond the middle, punctate-striate, the punctures coarse and subcrenate at the extreme
base, moderately coarse at the sides, and fine and shallow on the disc, becoming still finer towards the apex,
the interstices convex throughout, and minutely and sparingly punctured, the surface rather dull, red, each
elytron with a broad obscure greenish-fuscous patch on the dise (occupying the second to the seventh inter-
stices) extending from a little below the base nearly to the apex ; beneath more shining, cyaneous, sparingly
pubescent, coarsely but rather sparingly punctured, the middle of the metasternum much more finely so ;
legs short and stout, closely and somewhat coarsely (the femora and tibie equally so) punctured, cyaneous,
the tarsi darker, the first joint of the posterior tarsi as long as the apical one ; the anterior tibie curved,
and somewhat strongly sinuate within, in the male.

Length 14 millim.; breadth 5 millim. (¢.-)
Hab. Mexico, Tehuantepec (Sallé).

One example. This species approaches S. opacipenne in some of its characters,
especially in the shape of the head; but is readily separated, apart from colour
differences, by the shorter and stouter legs, the shorter antenne, the differently shaped
and much more closely punctured thorax, the convex and smoother elytral interstices,
the punctures of the strie coarse at the base, &c. S. divittatwm also slightly resembles
S. cruentatum and other similarly-coloured species, though easily distinguished by the
above-mentioned characters. In the elytral maculation the present insect is somewhat
similar to the Brazilian S. limbatum (Germ.), Makl. The single specimen is without
abdomen, but from the structure of the anterior tibiz is no doubt a male.

Elytra long, coarsely striate-punctate, the punctures often transverse and closely approxi-
mate; eyes small; upper surface violaceous or cyaneous, the elytra banded with
reddish-testaceous or testaceous.

36. Strongylium aulicum. (Tab. XV. fig. 17, 2 .)
Strongylium aulicum, Makl. Monogr. p. 255; Act. Soc. Fenn. viii. part 1, p. 363’.
Strongylium flavicorne, Chevy. in litt.
Hab. Mexico, Cordova, Yolos (Sallé!); Guaremana, Chacoj and San Juan in Vera
Paz (Champion); Nicaracua, Chontales (Belt).

This is one of a group of species numerously represented in Tropical South America,
and recognizable byits elongate cylindrical form and bright cyaneous or violaceous surface,
the elytra each with a broad testaceous band at the base and a rather narrower one
beyond the middle, the bands connected along the lateral margin, but not reaching the
suture. The antenne vary in colour from testaceous to piceous; rarely (one example
from Chontales) the tibize are red. The thorax sometimes shows traces of a fine more

STRONGYLIUM. 363

or less obsolete lateral margin. As Maklin remarks, S. aulicwm is very closely allied
to the Brazilian S. nodile. A Chontales example is figured.

87. Strongylium decoratum. (Tab. XV. fig. 18, 2, var.)
Strongylium decoratum, Makl. Monogr. p. 257; Act. Soc. Fenn. viii. part 1, p. 365°.
Strongylium venustum, Mikl. in litt.

Hab. Costa Rica (Wagner!); Panama, Chiriqui (Zrdtsch).—Bottvia '.

A single female example before me, from Chiriqui, 14 millim. in length, differs from
Maklin’s description of §. decoratum in having the two transverse testaceous bands of
the elytra united at the suture, and the legs rather differently coloured (the apical third
of the intermediate and of the posterior femora, as well as all the tibie, being testaceous,
and the tarsi piceous); it is doubtless a variety of that insect.

The Chiriqui specimen is figured.

38. Strongylium panamense. (Tab. XV. fig. 19, 2.)

Elongate, subylindrical, violaceous or bluish-violaceous, shining. Head greenish-eneous in front, violaceous
behind, coarsely and rather closely punctured, the intraocular space and the vertex quite sparingly so,
deeply longitudinally impressed between the eyes, the vertex in front broadly flattened and somewhat
depressed, the antennary orbits prominent; eyes rather small, somewhat widely separated; antenne ( 9 )
stout, rather short, rapidly widening outwardly, joint 4 the length of but wider than 3, subtriangular,
joints 6-10 about as broad as long, 11 ovate, entirely testaceous (in one example with the basal four joints
greenish-eneous in tint); prothorax nearly as long as broad, subcylindrical, the sides obsoletely margined
throughout (the margin not visible from above), gradually narrowing anteriorly, and a little rounded (in
one example slightly sinuate before the base), the anterior angles rounded, the hind angles more or less
rectangular, the base and apex slightly sinuate and rather feebly margined, the disc obsoletely canaliculate
and broadly and shallowly depressed in the middle behind, the surface very sparingly and rather finely
(but deeply) punctured; scutellum subtriangular, rather convex, smooth, violaceous ; elytra long, sub-
parallel in their basal half, a little acuminate at the apex, striate-punctate, the punctures coarse, deep,
and subapproximate, and slightly transverse in the basal half, thence to the apex rapidly becoming very
much finer and shallower, and at the apex itself almost obsolete, the interstices smooth, nearly flat or but
little raised on the basal half of the disc, convex at the apex and also (in one example) at the sides, the
surface testaceous nearly to the middle, the apical half violaceous; beneath very bright greenish-eneous
or cyaneous, glabrous, the coxe and trochanters with a few short hairs, almost smooth, the sides of the
metasternum with a few widely scattered coarse impressions, the flanks of the prothorax coarsely but
sparingly punctured ; legs stout, short, very sparingly punctured, the femora almost smooth, testaceous,
the extreme base of the four hinder femora suffused with greenish-seneous, all the tarsi bluish-black, the
first joint of the posterior tarsi about as long as the apical joint.

Length 12-13 millim.; breadth 33-4 millim. ( 2.)

Hab. Panama (coll. F. Bates), Chiriqui (Trétsch).

Two examples, apparently both females. S. panamense is readily identified by its
stout ferruginous antenne, obsoletely margined, subcylindrical, and comparatively
smooth thorax, and stout legs; and also by the coloration of the elytra. A similarly-
coloured allied undescribed species, from Southern Colombia, is contained in Mr. F.

Bates’s collection.
The example from Mr. F. Bates’s collection is figured.

3 AA 2

364 . HETEROMERA.

Elytra long or moderately long, more or less coarsely striate-punctate, the punctures
often transverse and closely approximate ; upper surface greenish-eneous, violaceous,
or cyaneous, the elytra rarely nigro-eneous, the latter (except in vars. of S. varians
and §. misantle) more or less margined or striped with red, reddish-testaceous, or
testaceous; size moderate or small.

a. Elytra long, usually more or less cylindrical, the lateral margins and
base reddish-testaceous or testaceous.

+ Eyes small or moderate, more or less widely separated.

89. Strongylium cruentatum.
Strongylium cruentatum, Mik. Monogr. p. 227; Act. Soc. Fenn. vii. part 1, p. 335°.

Hab. Mexico }, Cordova, Santecomapan (Sal/é).

S. cruentatum differs from its allies in having the punctures of the elytral series fine
and shallow on the disc, the punctures not transverse, the interstices flat on the disc
and broad and shining; and also by the very stout antenne.

40, Strongylium nitidiceps. (Tab. XV. fig. 20, 2 .)

Elongate, subcylindrical, greenish-zeneous more or less suffused with cyaneous or violaceous, shining. Head broad,
comparatively very smooth, the antennary orbits somewhat dilated and very prominent, very sparingly
and finely punctured, longitudinally impressed between the eyes, very shining, the anterior half much
suffused with golden, the oral organs (the mandibles excepted) testaceous; eyes comparatively small,
rather convex, very widely separated in both sexes; antenne slender, rather short (not passing very far
beyond the base of the elytra in either sex), very little longer in the male than in the female, gradually
widening outwardly, joints 3 and 4 long, subequal, the penultimate joints much longer than broad, the
apical joint rather longer than the tenth and ovate, the basal joint of a greenish-golden tint, the rest
entirely testaceous; prothorax as long as or rather longer than broad, subcylindrical, the sides (at
least in one example) very obsoletely margined behind though not visibly so from above, a little rounded
about the middle, slightly sinuate behind, and gradually narrowing in front, the apex straight and feebly
margined (the margin not grooved within), the base slightly sinuous, the basal foves deep, the anterior
angles obtuse, the hind angles subrectangular, the disc broadly flattened in the middle behind and with a
shallow (or deep) rounded fovea on each side about the middle, the surface finely or moderately finely,
very sparingly, subequally punctured; scutellum triangular, smooth, greenish-eneous; elytra long, sub-
parallel in their basal half, moderately convex, rather finely striate-punctate, the punctures transverse in
shape, shallow, approximate, and gradually becoming almost or quite obsolete towards the apex, the
interstices flat, feebly convex at the apex only, and very minutely and sparingly punctured, the apices a
little produced, somewhat compressed laterally, the first or sutural stria deeply impressed behind, the
surface duller and less shining than that of the prothorax, red or reddish-testaceous, with a very broad
obscure bluish- or greenish-eneous sutural stripe extending from a little below the base to the apex;
beneath greenish-sneous, very sparingly punctured, indistinctly pubescent; legs comparatively rather
short, the femora almost smooth, violaceous, the tibie rather short, roughly punctured, greenish-sneous,
the tarsi piceous, the first joint of the posterior tarsi rather longer than the apical one; the anterior
tibiee in the male very short and but little curved, scarcely differing from those of the female.

Length 11-13 millim.; breadth 33-4 millim. (¢ 9.)

Hab. Mexico, Cerro de Plumas (f/ége).

Two examples only. This very distinct species resembles S. nubeculosum and

STRONGYLIUM. 365

S. cruentatum in colour and general facies; but it is at once separated from both by
the broad and comparatively very smooth head, the very widely separated eyes, the
slender testaceous antenne, the long subcylindrical thorax, the grooved and slightly
produced apices of the elytra, &c.

41. Strongylium laterale.
Strongylium laterale, Mikl. Monogr. p. 226; Act. Soc. Fenn. viii. part 1, p. 334°.

Hab. Mexico (coll. Chevrolat+, coll. F. Bates), Tuxtla (Sallé).

I have only seen two examples (a male and a female) that I can satisfactorily refer
to this species: these specimens, however, are only 11-124 millim. in length, Maklin
gives 16 millim.; both have the front of the vertex broadly and deeply excavate as
described by Miaklin!. The antenne are slender in both sexes; in the male the
anterior tibize are somewhat strongly sinuous and thickly clothed with silky hair
within, and the inner side of all the femora and the metasternum in the middle
densely pubescent. The smoother and deeply excavate head in both sexes, and the
subquadrate and comparatively much smoother thorax readily distinguish S. laterale
from S. varians.

42. Strongylium nubeculosum.
Strongylium nubeculosum, Makl. Monogr. p. 228; Act. Soc. Fenn. vii. part 1, p. 336 ‘

Hab. Mzxico, Yucatan (Deyrolle1); Nicaracua, Chontales (Belt).

A male and a female example of a Strongyliwm collected by the late Mr. Belt at
Chontales agree very nearly with Maklin’s description of S. nubeculosum.

These specimens differ from S. crwentatwm in their more slender antenne and legs,
duller and more coarsely punctured elytra, &c.; from S. laterale in the shallowly
impressed vertex, and the duller elytra, the sutural patch on which is of a darker
and fusco-violaceous tint and does not extend to the apex; and from S. varians in
the smoother head and thorax, less elongate form, more quadrate and less transverse
thorax, &c. The male and female scarcely differ in the shape of the elytra; in the
female example the thorax is obsoletely margined towards the base ; in the male the
fifth ventral segment is semicircularly depressed in the middle at the base (perhaps acci-
dentally) and shallowly impressed in the middle behind. These specimens vary from
12-124 millim. in length, Maklin gives 103 millim.

43. Strongylium varians. (Tab. XV. fig. 21, ¢.)

Very elongate, subcylindrical, metallic green or cyaneous, moderately shining. Head coarsely and usually
very rugosely punctured, sometimes closely and coarsely so with the intraocular space smoother, at
most shallowly longitudinally impressed (often nearly flat) between the eyes, the latter moderately
large and widely separated; antenne long and slender in the male, shorter and rather stouter in the
female, joints 3 and 4 long, subequal, the penultimate joints very much longer than broad in the male,

366 HETEROMERA.

joints 1-4 bright metallic green, the rest dull piceous, the apical joint often more or less ferruginous ;
prothorax short, transverse, usually very strongly so in the male, convex, the sides immarginate, a little
rounded and narrowing anteriorly, and nearly straight behind with the hind angles rectangular (sometimes
sinuate behind, with the hind angles acute), the apex straight, the base slightly sinuate, both strongly
margined, the anterior angles obtuse, the disc usually rather deeply impressed and canaliculate before the
base, sometimes canaliculate in front, and often irregularly depressed on each side about the middle (in
some coarsely sculptured male examples with an irregular, smooth, narrow, slightly raised longitudinal
space in the middle), the basal fovee deep, the surface usually coarsely but rather sparingly and irregu-
larly punctured (in some males exceedingly coarsely, in some females more finely and sparingly so) ;
scutellum subtriangular, sparingly punctured, greenish or cyaneous ; elytra very long, distinctly narrower
in the male, subparallel to far beyond the middle, if anything widest at the extreme base, the apices
slightly produced, striate-punctate, the punctures rather coarse but not deep, closely approximate, and
usually strongly transverse, and becoming finer towards the apex, the interstices smooth, slightly raised on the
disc and convex towards the sides and apex, the surface red, reddish-testaceous, or testaceous, with a very
broad cyaneous or greenish-violaceous sutural stripe (reaching to the fifth row of impressions) extending
from a little below the scutellum to the apex, the lateral margins posteriorly and the epipleure usually
violaceous; beneath pubescent, bright metallic green or cyaneous, comparatively coarsely and closely
punctured, the sides of the metasternum and the flanks of the prothorax very coarsely so; legs long and
rather slender, very coarsely punctured, slightly pubescent, bright metallic green or cyaneous, the first
joint of the posterior tarsi rather longer than the apical joint; anterior tibi slightly curved and a little
sinuate and somewhat thickly clothed with hair within, and the inner edge of all the femora thickly
clothed with hair, in the male, the fifth ventral segment flattened only in this sex.
Length 11-14 millim.; breadth 3-43 millim. (¢ 2.)

Hab. Mexico, Orizaba (Sailé), Misantla (Hége); Britisp Honpuras, R. Sarstoon
(Blancaneaux); Guatemana, Sabo, Sinanja, Senahu, San Juan in Vera Paz (Champion).

Var. a. The sutural stripe of the elytra much narrower; the prothorax more finely and more sparingly
punctured.

Hab. Brivisn Honpuras (Blancaneaux) ; GuateMaLa, Panzos and San Juan in Vera
Paz (Champion). Four females.

Var. 3. The elytra metallic green, violaceous at the apex, with a reddish-testaceous humeral patch extending
inwards nearly to the scutellum and laterally to about the middle; the hind angles of the prothorax
acute.

Hab. Mexico, Cerro de Plumas (Hoge). One immature female.

Var. y. The elytra pale, testaceous, the suture narrowly fuscous ; the hind angles of the prothorax acute.
(Tab. XV. fig. 22, 3.) .

Hab. Gvuatemaa, Sinanja (Champion). Three males.

The large number of specimens I refer to this species vary considerably inter se, but
Iam unable to separate them; the description is taken from Guatemalan examples.
Both sexes were collected together by myself in several localities on the Guatemalan
Atlantic slope, and the pallid variety y in company with the type. The specimens
before me from Mexico and British Honduras are all females, and differ a little from
the others; the examples from Orizaba in the Sallé collection (labelled S. laterale,
Makl.) and the variety 6 have the thorax obsoletely margined at the sides towards the
base; the variety 8 may possibly represent another species. In most of the specimens I

STRONGYLIUM. 367

have examined the sixth (and usually hidden) ventral segment projects beyond the fifth
segment and is distinctly visible.

A typical female from Senahu and a male of the variety y from Sinanja are figured.

44, Strongylium misantle. (Tab. XV. fig. 23, 3.)

Moderately elongate, not very convex, metallic green or bluish-green. Head very closely and coarsely punc-
tured (in some examples confluently, in others more sparingly so, between the eyes), the intraocular space
sometimes longitudinally grooved in the middle, the eyes rather small and widely separated; antenne
rather slender, widening a little outwardly, in the male long, reaching to one third of the length of the
elytra, in the female much shorter, joints 3 and 4 long, subequal, the penultimate joints much longer than
broad, the extreme apex often testaceous; prothorax strongly transverse in the male, rather longer in the
female, moderately convex, the base feebly bisinuate, the apex straight, the sides a little rounded about
the middle and slightly narrowing in front, the anterior angles obtuse, the hind angles subrectangular or
acute, the basal fovess deep, the disc irregularly and obliquely impressed on each side and sometimes
shallowly canaliculate towards the base, the surface rather uneven and very coarsely, closely, and irre-
gularly punctured, the punctures sometimes shallower and more scattered in the female; scutellum
triangular, impressed in the middle behind, variable in colour but usually obscure red; elytra moderately
long, not very convex, comparatively broad, deeply and very coarsely striate-punctate (the punctures
approximate and more or less transverse), the interstices rather convex towards the sides and strongly
so at the apex, smooth, the surface red or reddish-testaceous, with a metallic green or bluish-green very
broad sutural stripe extending from a little below the scutellum to the apex, the stripe usually narrowing
towards the base; beneath bright greenish-zeneous, almost glabrous, sparingly punctured ; the anterior and
intermediate tibia a little curved, the inner edge of the former slightly sinuous, and the posterior tibie
somewhat strongly sinuate, in the male, the fifth ventral segment unimpressed as in the female.

Length 9-11} millim.; breadth 33-43 millim. (3 9.)

Hab. Mexico, Misantla (Hoge), Panistlahuaca (Sallé); GuaTemata, San Juan in Vera
Paz (Champion).

Var. a. The prothorax suffused with red on each side of the disc; the rest as in the type.
Hab. Guatemaua, Zapote (Champion). One female example.

Var. @. The elytra narrowly red at the sides for two thirds only of their length; the prothorax marked as in a.
Hab. Guatemata, Capetillo (Champion). One male example.

Var. y. The elytra entirely of a violaceo-cupreous tint ; the prothorax marked asin aand GB. (Tab. XVI. fig. 3, 3.)
Hab. Guatemaa, Capetillo (Champion). A single male.

Iam unable to refer this insect to either of the species described by Maklin. It is
perhaps nearest allied to S. discoidale, and like that species usually has the scutellum red
in colour; but is separated by the different system of coloration of the elytra, by the longer
antenne, by the thorax being wider at the base, &c. From S. laterale and its allies it is
distinguished by its shorter and more depressed form, comparatively shorter and broader
and more coarsely striate-punctate elytra, &c. Found in abundance by Herr Hoge at
Misantla; the single example in the Sallé collection is labelled S. cinctwm, Makl., but
does not agree with the description of that species.

The specimens from Guatemala are somewhat aberrant, but I am unable to satis-
factorily separate them. We figure an example of the typical form from Misantla, and

one of the var. y from Capetillo.

368 HETEROMERA.

45. Strongylium cinctum. (Tab. XV. fig. 24, 2 -)
Strongylium cinctum, Makl. Monogr. p. 229; Act. Soc. Fenn. viii. part 1, p. 337°.

Hab. Muxtco, Cordova (Sallé!), Cerro de Plumas, Misantla (Hoge).

If I have rightly identified this species, S. conctum is at once separated from the
allied forms by the exceedingly close, shallow, uniform punctuation of its regularly
convex thorax. The elytra are nigro-zneous in tint, with the base and the lateral
margins to beyond the middle red. The general shape is linear-elongate.

An example from Misantla is figured.

46. Strongylium marginale. (Tab. XV. fig. 25, ¢ .)
Strongylium marginale, Mikl. Monogr. p. 280; Act. Soc. Fenn. viii. part 1, p. 338°.

Hab. Mexico, Cordova (Sallé').

A long and narrow species; the thorax usually deeply impressed on each side of the
disc in the middle; the elytra very long and cylindrical and with the apices some-
what produced, testaceous in colour, with a broad obscure bluish-violet sutural stripe
extending from a little below the base to the apex and there confluent with a narrow
similarly-coloured marginal stripe which extends upwards nearly to the shoulders.

{+ Eyes larger, subapproximate.

47. Strongylium limitatum.
Strongylium limitatum, Makl. Monogr. p. 234; Act. Soc. Fenn. viii. part 1, p. 342°.

Hab. Muxtco (Deyrolle 1), Cordova (Sallé), Cerro de Plumas, Misantla (Hoge).

S. limitatum is separated from its rather numerous allies by its narrow form; the
large and approximate eyes; the very short thorax, the sides of which are toothed in
the middle and the anterior angles prominent; and the sides and base of the elytra
more or less broadly red. |

48, Strongylium suturale. (Tab. XVI. fig. 5, ¢.)
Strongylium suturale, Mikl. Monogr. p. 229; Act. Soc. Fenn. viii. part 1, p. 337°.

Hab. Mexico, Cordova (Sallé1); GuateMaLa, Panzos and San Juan in Vera Paz
(Champion).

A single female example in the Sallé collection, labelled S. limitatum, is perhaps
referable to this species. Two small male examples from Guatemala differ from the
description in having the thorax more coarsely and closely punctured; these specimens
are 62 millim. only in length. S. suturale is allied to S. limitatum in its approximate
eyes, but differs in the less prominent anterior angles and the more rounded sides (not
armed with a small tooth) of the thorax.

The example from Panzos is figured.

STRONGYLIUM. 369

b. Elytra moderately long, with an oblique reddish-testaceous stripe extending from
the shoulders nearly to the apex.

49. Strongylium discoidale.
Strongylium discoidale, Mak]. Monogr. p. 231; Act. Soc. Fenn. viii. part 1, p. 339°.
Hab. Mexico, Cordova (Sailé 1).

This species is allied to S. marginale; but the thorax is shorter and very coarsely
punctured; the scutellum is red; and the elytra are much shorter, somewhat similarly
striped, and, like the rest of the surface, greenish-zneous in tint.

50. Strongylium curticorne. (Tab. XVI. fig. 6, 3.)

Moderately elongate, subcylindrical, not very convex, bluish-violet, rather dull. Head very coarsely and closely
punctured, the epistoma more finely and sparingly so, shallowly longitudinally impressed between the eyes,
the latter rather small and widely separated; antenne ( ) short, stout, joint 4 triangular, rather shorter
but very much wider than 3, joints 5-10 wider than 4, equal in width and subtransverse, 11 rather longer
than 10 and short ovate; prothorax a little broader than long, rather convex, the sides very obsoletely
margined about the middle (the indistinct margin not visible from above), slightly rounded, and narrowing
a little in front, the base and apex straight, the anterior angles obtuse, the hind angles subrectangular,
the basal foves shallow, the disc impressed in the middle behind, the surface very coarsely and closely
punctured ; scutellum greenish, slightly impressed; elytra narrow, moderately long, a little depressed on
the disc, somewhat coarsely striate-punctate (the punctures approximate, and transverse in shape), the
interstices a little convex towards the sides and strongly so at the apex, almost smooth, the surface
reddish-testaceous, with a broad bluish-black sutural stripe extending from a little below the scutellum to
the apex and there confluent with a similarly-coloured marginal stripe extending upwards to within a
short distance of the base; beneath more shining, slightly pubescent, the sides of the meso- and of the
metasternum and the side pieces, and the flanks of the prothorax exceedingly coarsely, the ventral surface
finely, punctured; legs short (the tibiee especially) and comparatively stout, coarsely punctured, the first
joint of the posterior tarsi as long as the apical one; the tibiz a little curved and the anterior and
posterior pairs pubescent within in the male.

Length 8 millim.; breadth 23 millim. (¢.)

Hab. Mexico, Tapachula in Chiapas (£7ége).

A single example found by Herr Hoge on the lower part of the South Mexican
Pacific slope. S. curticorne can be at once separated from the numerous allied forms
by its comparatively short legs and antenne; in the system of coloration of its
elytra it resembles S. marginale.

c. Elytra shorter, coarsely punctured, with the base, the lateral margins in front, and a
short basal streak on each, red; eyes small.

51. Strongylium ramosum. (Tab. XVI. fig. 7, 3.)
Strongylium ramosum, Miakl. Monogr. p. 232; Act. Soc. Fenn. viii. part 1, p. 340°.

Hab. Mexico (coll. F. Bates), Cordova (Sallé'), Cerro de Plumas (Hége).
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt.1, February 1888. 3 BB

370 HETEROMERA.

d. Elytra rather short, coarsely punctured, with the lateral margins and a broad
subsutural stripe reddish-testaceous ; eyes small.

52. Strongylium blandum. (Tab. XVI. fig. 8, 2.)
Strongylium blandum, Ma&kl. Monogr. p. 233; Act. Soc. Fenn. viii. part 1, p. 341°.
Stenochia blanda, De}. Cat. 3rd edit. p. 232°.

Hab. Mexico !? (coll. F. Bates), Cordova, Tuxtla (Sallé), Cerro de Plumas (Hoge).

This species is separated from the closely allied S. ramoswm by the rather shorter
form, and by the more strongly raised interstices and the coarser and deeper punctuation
of the elytra; the latter vary a good deal in the extent of the darker markings. We
figure a female example from Cordova.

Elytra coarsely striate-punctate, the punctures usually transverse and approximate, the
interstices flat or but little ‘raised ; upper surface (except in S. armatum, var.)
greenish-eneous, sometimes with a translucent reddish-brown tinge; size moderate
or small.

¢ yes more or less large and approximate.
53. Strongylium impressicolle. (Tab. XVI. fig. 9, 3.)

Strongylium impressicolle, Mikl. Monogr. p. 193; Act. Soc. Fenn. viii. part 1, p. 801°.

Hab. Mexico 1, Ventanas (Forrer), Cordova, Tuxtla, Playa Vicente (Sallé), Misantla,

Cerro de Plumas (Hége); Guatemata, San Juan in Vera Paz, Zapote (Champion) ;

Nicaracua, Chontales (Janson).

Var,.? The prothorax armed at the sides with two contiguous median teeth, the anterior angles prominent.

Hab. Guatemata (Sallé). One example.

Var.? The prothorax armed at the sides with a strong median tooth; the legs and antennee fusco-testaceous,
the former and the base of the latter suffused with golden-green.

Hab. Nicaracua, Chontales (Belt). One female example.

Found in abundance by Herr Hoge at Misantla. In the long series of examples from
this locality the thorax varies considerably in shape, the sides being usually rounded,
though often subangularly dilatate about the middle. 8. impressicolle is distinguished
by its moderately shining greenish-eneous surface, the elytra usually in great part
suffused with reddish-brown ; it is the largest of several allied species (though quite
small examples occur) inhabiting our region, and principally identified by the eyes
being very large and sub-approximate, the thorax transverse, comparatively finely
though closely punctured, and usually with a broad transverse arcuate impression on
the disc behind, and the elytra with rows of moderately coarse transverse impressions.
The ventral surface is rather closely and somewhat coarsely punctured; the fifth
ventral segment impressed in the middle behind in both sexes (as in S. languidum), &c.

A male individual from Misantla is figured.

STRONG YLIUM. 371

54. Strongylium languidum. i
Strongylium languidum, Makl. Monogr. p. 204; Act. Soc. Fenn. viii. part 1, p. 812°.

Hab. Mexico, Cordova, Tehuantepec (Sallé +); GuaTeMaua, Zapote, Capetillo, Senahu,
Sinanja (Champion).

According to two examples labelled S. danguidum in the Sallé collection (a third so
labelled is here referred to S. impressicolle), this species differs from S. armatum in the
rather less approximate eyes. The armature of the sides of the thorax, when a large
number of examples from the same locality are examined, proves to be a variable
character, and some specimens here referred to S. languidum have the sides as strongly
toothed as in 8. armatum, while in others the median tooth is obsolete; the anterior
angles of the thorax are less prominent in S. Janguidum. The ventral surface is more
finely punctured than in S. armatum.

The Guatemalan examples have the eyes comparatively widely separated (especially
noticeable in the female), and differ a little in other respects ; I do not think, however,
that they represent more than a variety of S. languidwm.

The North-American S. crenatum, Makl., is an ally of this species.

55. Strongylium armatum. (Tab. XVI. fig. 10, 9, var.)
Strongylium armatum, M&kl. Monogr. p. 208 ; Act. Soc. Fenn. vii. part 1, p. 311 ‘
Hab. Mexico, Cordova (Sallé1), Cerro de Plumas, Tapachula in Chiapas (Hdge) ;
GuaTema.a, San Juan in Vera Paz (Champion) ; Panama, Volcan de Chiriqui (Champion).

This species is separated from S. émpressicolle, if I have identified that insect correctly,
by the smaller size, more linear shape, more coarsely punctured elytra, rather smaller
eyes (in the male separated only by an exceedingly narrow space), and much more
coarsely punctured ventral surface ; as well as by the toothed sides of the thorax, a
character, however, sometimes present in S. impressicolle ; both species usually have
the anterior angles of the thorax a little prominent. Two examples, one from Cordova
(figured on our Plate) and one from San Juan, have the suture and the lateral margins
of the elytra reddish, thus very nearly approaching S. démitatum in colour ; S. armatum
is, however, distinguished from that species by the red suture and more coarsely
punctured elytra.

56. Strongylium oculatum.

Resembling S. languidum, and differing as follows :—The antenne longer in both sexes, particularly in the
female; the eyes larger and closely approximate in the male, narrowly separated in the female ; the pro-
thorax more rounded at the sides, the anterior angles rounded or indistinct, the hind angles subacute, the
sides armed with a very short feeble tooth in the middle; the upper surface usually golden-bronze in
tint ; the rest very much as in S. languidum.

Length 73-83 millim.; breadth 27-23 millim. (¢ 2.)

Hab. Guatemata, Yzabal (Sal/é) ; Nicaracua, Chontales (Belt, Janson).
3 BB 2

372 HETEROMERA.

Six specimens. This insect, though closely allied to S. languidum, is sufficiently
distinct to be separated therefrom.

57. Strongylium brevipes. (Tab. XVI. fig. 11, ¢.)

Upper surface as in S. oculatum; the eyes large and approximate in both sexes; the antenne much shorter
and stouter, in the female the penultimate joints as broad as long; the prothorax with the hind angles
subrectangular and usually less acute than in S. ocwlatwm; the legs (especially the tarsi) shorter in both
sexes, the first joint of the posterior tarsi comparatively much shorter ; the ventral surface very much
more coarsely punctured.

Length 7-8 millim. ; breadth 23-23 millim. (¢ @-)

Hab. Nicaracva, Chontales (Belt); Panama, Volcan de Chiriqui (Champion).

Fiveexamples. Until the corresponding sexes are compared this insect, at first sight,
resembles 8. oculatum so closely as to be easily mistaken for the female of that species.
The short tarsi and antenne and the very coarsely punctured ventral surface (resembling
S. armatum) are the chief characters of S. brevipes. Two examples differ from the
others in having the under surface and the thorax cyaneous or greenish-eneous, and
the elytra suffused with reddish-brown. S. brevipes is separated from S. gregarium by
the large approximate eyes, the flatter elytral interstices, and the much smoother
ventral surface.

A Chontales specimen is figured.

tt Eyes much smaller ; upper surface rather more depressed ; head very rugosely
punctured ; the basal half of the femora testaceous.

58. Strongylium angustulum.
Strongylium angustulum, Mékl. Monogr. p. 206; Act. Soc. Fenn. viii. part 1, p. 3147.

Hab. Panama, Caldera in Chiriqui 1200 feet (Champion).—Cotomsia }.

Three examples of a Strongylium collected by myself in Chiriqui agree very nearly
with Maklin’s description of S. angustulum. From S. languidum and its allies these
specimens are separated by the more coarsely and more rugosely punctured head and
thorax, the more widely separated eyes, the femora testaceous in their basal half, the
under surface duller and in great part reddish-brown, the ventral surface more finely
and sparingly punctured, and the elytra with a more translucent brownish tinge, and.
the suture narrowly suffused with fusco-violaceous. In the male the fifth ventral
segment is largely depressed in the middle behind. Maklin gives the length as 9 millim. ;
our examples measure 73-72 millim.

The allied S. punctatissimum, M&akl., from Brazil, is much more coarsely punctured
beneath, though very similar above.

STRONGYLIUM. 373

Elytra much as in 8. impressicolle, &c., but more convex and more coarsely punctured,
the alternate interstices subcostate : size small.

+ Eyes small, distant.
59. Strongylium gregarium. (Tab. XVI. fig. 12, 3.)

Moderately elongate, rather convex, greenish-zneous, with a translucent brownish tinge, slightly shining.
Head coarsely and closely punctured, impressed between the eyes, the latter rather small but convex and
somewhat narrowly separated in both sexes; antennew rather stout, moderately long, widening outwardly,
joints 3 and 4 about equal in length, the penultimate joints longer than broad, the apical joint rather large
and ovate, piceous or dark reddish-brown; prothorax transverse, convex, the sides immarginate, slightly
crenulate, rounded, narrowing a little in front, and about equally narrowing and sinuate behind, the base
and apex nearly straight, the hind angles rectangular or subacute, the anterior angles obtuse, the disc
deeply canaliculate in front and shallowly so behind, the basal foves shallow and ill-defined, the surface
uneven and exceedingly coarsely and closely punctured, the punctures here and there confluent ; scutellum
subtriangular, almost smooth ; elytra comparatively rather short, subparallel in their basal half, very
coarsely and deeply striate-punctate, the punctures subtransverse or rounded and subapproximate, the
interstices smooth and slightly raised, the alternate ones (especially the third) more distinctly so, the
surface greenish-aneous, sometimes brownish ; beneath almost glabrous, moderately shining reddish-brown,
much suffused with greenish-seneous towards the sides, finely and sparingly punctured, the metasternum
in front much more coarsely so, the sides of the latter and the flanks of the prothorax very coarsely
punctured ; legs moderately long, rather stout, sparingly but rather coarsely punctured, greenish-sneous,
the tibize often reddish-brown, the tarsi piceous, the first joint of the posterior tarsi much shorter than the
apical joint.

Length 5-7 millim.; breadth 13-24 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Found in abundance by myself on the slope of the Volcan de Chiriqui. SS. gregarium
is separated from S. languidum, S. armatum, and their allies by the less elongate shape,
the smaller eyes, the elytra shorter, with less approximate, deeper, and more rounded
impressions, and the alternate interstices a little raised, the legs smoother, and the
ventral surface much more finely punctured. From 8S. permodicum and S. punctipes
it is distinguished by the less widely separated eyes in both sexes; the shorter and more
closely (but equally coarsely) punctured thorax; the very much narrower and less
raised alternate interstices of the elytra, the sutural space narrow, the punctures
coarser, more rounded, and less approximate ; and also by the shorter and more convex
general form and the greenish-eneous surface.

+} Eyes larger, more approximate.

60. Strongylium erraticum.

Resembling S. permodicum, Mikl., and differing as follows:—The head very unequally punctured, the anterior
part very sparingly and rather finely, the hinder part very coarsely and rugosely so, the intraocular
impression deeper, the eyes much larger and more approximate; the antenne (3) stouter, with joints
7-9 subtriangular ; the prothorax more convex, rounded at the sides, about equally narrowing before and
pehind, the surface still more coarsely, rather more closely, and more irregularly punctured ; the elytra
more elongate, with the alternate interstices raised, but not distinctly broader than the others (much broader

374 HETEROMERA.

in 8. permodicum), the punctures much coarser and deeper, and less approximate, though fine, shallow, and
more scattered at the apex ; the fifth ventral segment more deeply impressed in the middle behind in the

male; the rest much as in S. permodicum.
Length 6% millim.; breadth 2 millim. (<¢.)

Hab. Nicaraaua, Chontales (Janson).

A single example. This insect is almost intermediate between S. permodicum and
S. gregarium, but quite distinct from either. The stouter antenne (3), the larger
and more approximate eyes, the more coarsely and less closely punctured and less
transverse thorax, the much longer elytra, and the more coarsely and more closely
punctured under surface separate it from S. gregarium.

Elytra rather short, very coarsely striate-punctate, the alternate interstices narrowly
costate ; eyes large, approvimate ; upper surface greenish-ceneous, the elytra testa-
ceous, with a subapical patch on each and the suture fusco-violaceous ; size small.

61. Strongylium carinipenne. (Tab. XVI. fig. 13, 3.)

Moderately elongate, slightly convex, dull greenish-neous. Head in front bright seneous and closely and rather
coarsely punctured, behind dull and very coarsely and rugulosely punctured, shallowly impressed between
the eyes, the latter large and approximate ; antenne ( ¢ ) moderately long, rather stout, joint 4 about as
long as but broader than 3, subtriangular, joints 5-10 nearly equal in length, widening very slightly
outwardly, each nearly as broad at the base as at the apex, all longer than broad, 11 oblong-ovate, longer
than 10, 1-3 greenish-eneous, the rest dull black ; prothorax subquadrate, strongly transverse, the sides
immarginate, very feebly rounded, equally (but very slightly) narrowed before and behind, and armed in
the middle with a sharp tooth, the base and apex nearly straight, the anterior angles rounded, the hind
angles rectangular, the basal fovese moderately deep, the disc almost unimpressed, the entire surface rather
uneven and (like the vertex) very coarsely and rugulosely but somewhat shallowly punctured ; scutellum
triangular, smooth, very shining, metallic green; elytra moderately long, subparallel to beyond the middle,
a little depressed on the disc, very coarsely striate-punctate throughout, the punctures transverse in shape
and approximate, and very little finer at the apex, the interstices smooth, narrow, the third, fifth, and
seventh costate from the base to the apex, the others a little raised at the sides and apex, the smooth sutural
space broad, the surface shining, testaceous, the suture and an ill-defined patch on the disc of each towards
the apex fusco-violaceous ; beneath almost glabrous, bright greenish-zneous, sparingly but rather coarsely
punctured, the sides of the metasternum and the flanks of the prothorax very coarsely so; legs moderately
long, very coarsely punctured, bright greenish-zeneous, the coxe, the femora towards the base, and the
tibie in part obscurely reddish, the tarsi piceous; the first joint of the posterior tarsi shorter than the
apical joint; the tibie almost straight, and the fifth ventral segment shallowly transversely impressed in
the middle behind, in the male.

Length 7% millim.; breadth 23 millim. (<¢.)

Hab. Panama, Bugaba (Champion).

This is a small species somewhat resembling S. armatum: it differs in the thorax
being duller and much more closely and rugulosely punctured ; the elytra shorter, with
the alternate interstices costate, the surface testaceous, with the suture and a subapical
patch on the disc of each fusco-violaceous, the sutural space broad and smooth (as in
S. permodicum, &c.); the eyes are large and approximate as in S. armatum. SS. cari-
nipenne, except in the colour of the elytra, also approaches several South-American
epecies described by Maklin, but does not agree with any of them.

STRONGYLIUM. 375

Elytra with the alternate interstices wider and a little raised ; eyes small or moderate,

more or less widely separated ; upper surface unicolorous, bronze ; size small or
moderate.

62. Strongylium punctipes. (Tab. XVI. fig. 14, 3.)

Moderately elongate, somewhat depressed, rather dull brownish-eneous, with a slight greenish tint. Head
coarsely and very closely punctured, shallowly impressed between the eyes, the latter rather large and
convex and not very widely separated; antenna rather short, widening a little outwardly, joints 3 and 4
rather long, subequal, the penultimate joints longer than broad, black, tinged with eneous towards the
base; prothorax small and narrow, strongly transverse, the sides slightly crenulate, immarginate, a little
rounded and narrowed in front and nearly straight behind, the base and apex nearly straight, both strongly
margined, the hind angles rectangular or subacute, the anterior angles slightly prominent, the disc longi-
tudinally impressed in the centre behind and with a shallow irregular depression on each side about the
middle, the basal foveee deep, the surface rather uneven and very coarsely and closely punctured, the
punctures here and there confluent; scutellum subtriangular, flat, sparingly punctured; elytra rather
long, subparallel to beyond the middle, somewhat depressed on the disc, striate-punctate, the punctures
strongly transverse and approximate and moderately deep and coarse, the interstices almost smooth and
quite narrow, the alternate ones rather broader and slightly raised (more strongly so towards the apex) ;
beneath pubescent, comparatively coarsely and closely punctured, bright greenish-zeneous; epipleure
extending to the apex of the elytra; legs slightly pubescent, rather long and slender, closely and coarsely
punctured, greenish-eneous, the basal half of the femora and the tibis: more or less reddish, the tarsi
bluish-black, the first joint of the posterior tarsi rather shorter than the apical joint; the fifth ventral
segment in the male with a broad transverse semicircular impression in the middle behind, the anterior
tibiee nearly straight in this sex.

Length 7-84 millim.; breadth 23-23 millim. (d.)

Hab. GuateMata, near the city, Aceytuno (Salvin).

Two examples, apparently both males. S. punctipes is allied to S. permodicum, but
differs as follows :—the eyes are larger and more approximate; the thorax is smaller,
strongly transverse, more narrowed and rounded anteriorly, and more closely though
equally coarsely punctured ; the elytra are more depressed, and have the very slightly
raised alternate interstices narrower ; the under surface is bright greenish-zneous (not
dull bronze), pubescent, and more coarsely punctured ; and the legs are very coarsely
and closely punctured. From 8. /angwidum and its allies it is separated by the wider
and slightly raised alternate elytral interstices, as well as by other characters.

I did not myself meet with this species in Guatemala.

63. Strongylium subcostatum. (Tab. XVI. fig. 15, ¢.)
Strongylium subcostatum, Ma&kl. Monogr. p. 208; Act. Soc. Fenn. viii. part 1, p. 316°.

Hab. Mextco (coll. Chevrolat); GUATEMALA, Panzos, Teleman, and San Juan in Vera
Paz (Champion).

L have not seen this species from Mexico; but an insect found in plenty by myself
in various places on the lower part of the Guatemalan Atlantic slope agrees with

Miklin’s description. S. swbcostatum is one of numerous closely-allied 'Tropical-
American species, distinguished by their geneous or greenish-sneous surface ; coarsely

376 HETEROMERA.

and rugulosely punctured head and thorax; and coarsely striate-punctate elytra (the
punctures transverse in shape and approximate), the third, fifth, and seventh interstices
of which are wider than the others, and, like the suture, more or less raised or costate.
This species is the largest of the known forms of this group. An example from San
Juan is figured.

64. Strongylium permodicum.
Strongylium permodicum, Makl. Monogr. p. 212; Act. Soc. Fenn. vii. part I, p. 320°.
Hab. Guaremata!, Zapote (Champion); Nicaracua, Chontales (Belt); Panama (coll.
F. Bates), Bugaba, Volcan de Chiriqui, La Caldera (Champion).—CotomBra (coll.
F. Bates).

This species is generally distributed in our region from Guatemala southwards, and.
extends into Southern Colombia. S. permodicum differs from the closely allied S. exile,
Makl., from Colombia, Venezuela, and Bolivia, in the more coarsely sculptured upper
surface (especially of the thorax), and in the more sparingly punctured under surface ;
the legs, moreover (judging from two examples, one from Cartagena and another from
Cumana, before me of what I suppose to be S. exile), are very much smoother, and not
closely and coarsely punctured as in S. evile. Smaller, narrower, and less convex than
S. subcostatum, the upper surface less shining.

65. Strongylium cancellatum.
Strongylium cancellatum, Makl. Monogr. p. 212; Act. Soc. Fenn. vii. part 1, p. 320°.
Stenochia costato-striata, Chevr. in litt.

Hab. Mexico}, Jalapa (Hoge); British Honpuras, R. Hondo (Blancaneaux).

The three examples I refer to this species differ from S. exile in having the surface
of a much darker bronzy tint, and more coarsely punctured ; and also in the elytra
having all the interstices a little raised, the wider alternate ones still more strongly so.

Elytra long, rather depressed, foveolate-striate almost to the apex ; eyes moderate; pro-
thorax rugulosely punctured ; legs and antenne long and slender, the apical joint
of the latter testaceous ; upper surface dark greenish-bronze ; size moderate.

66. Strongylium apicicorne. (Tab. XVI. fig. 16, 3.)
Strongylium apicicorne, Mak. Monogr. p. 216; Act. Soc. Fenn. viii. part 1, p. 824°.

Hab. Mexico, Cordova (Sallé!), Cerro de Plumas (Hége).

Found in abundance by Herr Hoge at Cerro de Plumas. This species in many of its
characters resembles S. variicorne and others placed nearer the beginning of the genus,
but is a more fragile insect and has more depressed elytra. A specimen from Cerro de
Plumas is figured.

STRONG YLIUM.—OTOCERUS. 377

Elytra shorter than in §. apicicorne, similarly sculptured ; eyes moderate ; prothorax
coarsely rugose ; legs and antenne shorter ; upper surface obscure greenish-bronze ;
size small.

67. Strongylium fragile. (Tab. XVI. fig. 17, 3.)

Elongate, moderately convex, brownish-bronze, with an neous or greenish-eneous tint, rather dull. Head
very coarsely and rugosely punctured, scarcely impressed between the eyes, the latter rather large and
somewhat narrowly separated ; antenne rather stout, widening outwardly, joints 3 and 4 about equal in
length, 4 widening at the apex and wider than 3, the penultimate joints slightly longer than broad, the
apical joint ovate in the female, oblong-ovate in the male, piceous, tinged with eneous towards the base,
the apical two joints usually testaceous or ferruginous ; prothorax transverse, convex, the sides immar-
ginate, rounded, narrowing very little more in front than behind, and armed with a very short indistinct
blunt tooth in the middle, the base a little sinuous, the apex straight, both strongly margined, the anterior
angles obtuse, the hind angles subrectangular, the dise shallowly longitudinally impressed in the middle,
the basal fovere deep, the surface uneven and exceedingly coarsely and rugosely punctured, the interspaces
here and there forming very irregular smooth raised prominences ; scutellum subtriangular, finely punc-
tured; elytra moderately long and convex, subparallel to beyond the middle, from the base to the apex
with closely packed rows of deep coarse transverse or oblong excavations, the excavations frequently
longitudinally confluent and at the extreme base punctiform, the interstices smooth, much raised, and
more or less transversely confluent ; beneath reddish-brown, suffused with greenish-zneous, moderately
shining, almost glabrous, closely and comparatively coarsely punctured; legs moderately long, sparingly
but rather coarsely punctured, reddish-brown, suffused with greenish-sneous, the tarsi piceous, the first
joint of the posterior tarsi shorter than the apical joint ; the fifth ventral segment with a shallow rounded
impression in the middle behind in the male.

Length 6-8 millim.; breadth 2-23 millim. (¢ 2 )

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. In the elytral sculpture this species resembles S. apicicorne ;
it differs, however, from that species in its less elongate shape, much smaller size,
shorter and stouter legs and antenne, smoother legs, exceedingly rugose thorax, &c.
The somewhat regularly reticulate interstices and the closely-packed rows of excavations

on the elytra separate it at once from S. varticorne, &c.

OTOCERUS.
Oploptera, Chevrolat, in Guérin-Méneville’s Icon., Ins. p. 125 (1846) ; Lacordaire, Gen. Col. v.

p. 486 (1859) (women preeocc.).
Hoploptera, Gemm. & Harold, Cat. vil. p. 2037. _
Otocerus, Maklin, Monogr. Strongyl. p. 376 (1864); Act. Soc. Fenn. vii. part 1, p. 484 (1867

ars).
ee species of this genus have been described, all from Tropical America, and
numerous others exist in collections; the Brazilian O. longipes (Lucas) is here referred
to Pseudotocerus. None have hitherto been recorded from our region, whence we
have now to notice seven species. Otocerus is chiefly separated from Strongyliwm by
the comparatively very short third joint of the antenne; in the more typical species,
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, February 1888. 30C

378 HETEROMERA.

O. serraticornis (Chevr.), 0. dilaticornis, &c., the inner apical angles of joints 4-10 are
more or less strongly and angularly produced. The eyes are usually very large and
approximate, though sometimes small and widely separated. ‘The thorax in some
species, O. impressipennis, O. nicaraguensis, &c., is margined at the sides, though the
margin is not or only in part visible from above. The posterior femora are unarmed
in our species. In the male of 0. hamatus the anterior trochanters are produced into
a sharp curved tooth. The genus is now known to range as far north as the low hot
forest-region of Guatemala.

1. Eyes large, approximate.

a. Anterior trochanters unarmed in the male.

+ Elytra with the suture and lateral margins lighter or unicolorous.
1. Otocerus dilaticornis. (Tab. XVI. fig. 18, 3.)

Elongate, rather convex, brownish-piceous, slightly shining. Head large and broad, moderately finely and
rather closely punctured in front, much more coarsely so behind, the intraocular space transversely im-
pressed, the impression longitudinally grooved in the middle in front; eyes exceedingly large, extending
laterally a little beyond the sides of the prothorax, approximate in front; antenne (¢) long, very
greatly dilated and serrate within from the fourth joint (joints 4-10 all strongly produced at their inner
apical angle), joint 3 swollen at the apex, very short, joints 4-9 differing very little in length and width,
10 narrower than 9, 11 as long as but much narrower than 10, oblong ovate, obliquely truncate at the
apex, 1-3 shining, 4—11 dull and coarsely and rugosely punctured, the extreme base and apex ferruginous,
the rest black ; prothorax rather narrow, moderately transverse, subquadrate, convex, a little flattened on
the disc, the sides immarginate, nearly straight, and with a short blunt median tooth, the anterior angles
rather broadly rounded, the hind angles subrectangular and extending outwards, the apex straight, the

_ base feebly sinuate, both very strongly and completely margined, the disc canaliculate (except in front),
broadly and shallowly depressed behind, and with a small deep rounded depression on each side about the
middle, the basal fovex large and deep, the surface sparingly and rather finely (but deeply) punctured ;
scutellum subtriangular, distinctly punctured; elytra long, subparallel in their basal third, the sides
thence to the apex a little rounded and very gradually converging, deeply and rather coarsely crenate-
striate, the crenate impressions coarsest a little below the base (from the third stria outwardly) and
thence to the apex gradually becoming finer, the interstices almost smooth and strongly and equally
convex throughout, the suture, lateral margins, and epipleurw red; beneath moderately shining, finely
and rather sparingly punctured, the sides of the metasternum and the flanks of the prothorax coarsely so;
legs rather long, rather coarsely and closely punctured (the femora more shallowly so), reddish, the knees
a little darker ; the first joint of the posterior tarsi long, longer than the apical joint ; anterior tibic slightly
curved, and the fifth ventral segment broadly flattened in the middle, in the male.

Length 16 millim.; breadth 44 millim. (¢.)

Hab. Panama, Bugaba 1000 feet (Champion).

A single example. ‘This species cannot be satisfactorily compared with any hitherto
described, though it approaches the Brazilian 0. serraticornis in some of its characters.

2. Otocerus torolz. (Tab. XVI. fig. 19, 3.)

Elongate, subcylindrical, moderately convex, unicolorous brownish-piceous, rather dull, Head large and
broad, moderately coarsely and closely punctured in front, coarsely and rugosely so behind, the intraocular

OTOCERUS. 379

space shallowly longitudinally impressed ; eyes exceedingly large, transverse, approximate ; antenne rather
short, moderately stout, joints 4-10 rather broad, flattened, each a little produced at their inner apical
angle, 4 broader and very much longer than 3, 5-8 about equal in length and breadth, each much shorter
than 4,9 and 10 rather narrower, subequal, 11 oblong ovate, the joints brownish-piceous, the extreme base
and apex ferruginous ; prothorax large and broad, strongly transverse, not very convex, the sides immar- —
ginate, nearly straight (though feebly sinuate) behind, very slightly narrowed in front, and with a short
sharp median tooth, the base bisinuate, the apex nearly straight, both very distinctly margined, the anterior
angles rather prominent, the hind angles subacute, the basal foves large but shallow, the dise with traces
of a smooth slightly depressed longitudinal groove behind and transversely depressed before the base, the
surface uneven, and closely, irregularly, and somewhat coarsely punctured ; scutellum triangular, almost
smooth ; elytra long, subparallel in their basal half, a little depressed on the disc, very coarsely and
regularly crenate-striate, the crenate punctures becoming a little finer behind, the interstices almost
smooth and regularly convex throughout; beneath more shining, sparingly (the ventral segments more
coarsely at the sides) but somewhat coarsely punctured, the fifth ventral segment closely so, the sides of
the metasternum and the flanks of the prothorax very coarsely punctured; legs moderately long and
stout, very closely and coarsely punctured; the first joint of the posterior tarsi long, longer than the
apical joint ; anterior tibie nearly straight, and towards the apex thickly clothed with hair within, and
the fifth ventral segment flattened in the middle behind, in the male.
Length 17 millim.; breadth 54 millim. (¢.)

Hab. Guaremara, Torola 1000 feet (Champion).

A single example, found by myself in the vicinity of Escuintla. The less strongly
dilated antenne, larger and broader and more coarsely punctured thorax, broader and
more parallel and more coarsely crenate-striate elytra, shorter and more coarsely punc-
tured legs, and other characters readily distinguish O. toro/e@ from O. dilaticornis.

8. Otocerus nicaraguensis. (Tab. XVI. fig. 20, 3.)

Elongate, subcylindrical, convex, bright sneous, with cupreous or greenish tints. Head moderately coarsely
and somewhat sparingly punctured, shallowly impressed between the eyes, the latter very large and sub-
approximate in the male, rather smaller and more distant in the female; antenne in the male long and
rather slender, joint 3 short, joints 7-10 about equal in width, very much longer than broad, slightly
decreasing in length outwardly, 4-10 a little extended at their inner apical angle, 11 as long as 10 and
bluntly rounded at the apex—in the female shorter and more distinctly widening outwardly, the penul-
timate joints much shorter and subtriangular, the apical joint ovate—brownish or piceous, the extreme
apex lighter, the basal three joints greenish-eneous ; prothorax transversely convex, broad, strongly trans-
verse, subquadrate, the sides very finely margined (the margin not visible from above), almost straight
(though usually a little sinuate), and quite as broad (or broader) in front as at the base, the apex nearly
straight in the middle, the base slightly sinuous, the former in the centre and the latter very strongly
margined, the anterior angles rounded but rather obliquely cut off in front (when viewed from above) and
a little prominent, the hind angles sharply rectangular or subacute, the disc obsoletely canaliculate, some-
what deeply so behind, with a deep rounded fovea on each side a little behind the middle, and strongly
transversely impressed before the base, the basal fovese very deep and connected by the basal depression,
the surface somewhat coarsely and deeply but rather sparingly punctured; scutellum subtriangular,
sparingly punctured; elytra moderately long, subparallel in their basal half, more convex towards the
base, somewhat depressed a little behind the scutellum, finely striate-punctate, more coarsely so outwardly
in the anterior half, the punctures oblong in shape and approximate and towards the apex becoming finer
and shallower, the scutellar row very deeply impressed, the interstices broad, almost smooth, and strongly
convex throughout, the surface greenish-sneous, the raised interspaces more or less cupreous, the apices
rounded; beneath glabrous, bright greenish-sneous, sparingly (the fifth ventral segment more closely)
but not very finely punctured, the flanks of the prothorax and the sides of the metasternum coarsely so ;

300 2

380 HETEROMERA.

prosternum subhorizontal, the apex convexly produced and received by the broadly and moderately deeply
excavate mesosternum ; legs moderately long, rather coarsely but not very closely punctured, more or less
seneous, the first joint of the posterior tarsi longer (in the male much longer) than the apical joint; the
anterior tibie nearly straight, but with their inner edge a little sinuous, and the fifth ventral segment
with a large semicircular impression in the middle behind (in the female merely flattened), in the
male.

Length 113-15 millim. ;. breadth 4-5 millim. (¢ 9.)

Hab. Nicaragua (Sallé), Chontales (Belt, Janson).

Numerous examples of both sexes. This is one of the large number of interesting
species known only as yet from Nicaragua. The cylindrical shape, bright eneous
surface, short subquadrate and finely margined thorax, and convex elytral interstices
readily separate O. nicaragquensis from the other species here described.

++ Elytra with interrupted longitudinal testaceous streaks.
4, Otocerus interruptus. (Tab. XVI. fig. 21, @.)

Elongate, a little convex, somewhat flattened above, greenish-zneous, rather dull. Head in front closely and
somewhat coarsely punctured, behind exceedingly coarsely and rugosely so, shallowly longitudinally
impressed between the eyes, the latter very large, convex, and approximate (separated only by a very
narrow space); antenn (2) rather short, stout, subserrate within (the inner apical angle of each joint
angularly produced) from the fourth joint, the latter nearly twice as long as and much wider than the
third joint, joints 6-8 the longest and widest, subequal, 9 and 10 narrower than 8, and decreasing slightly
in length and breadth, 11 rather longer than 10, bluntly and obliquely rounded at the apex, the joints dull
black, a little lighter at the base ; prothorax rather flat, broad, strongly transverse, the sides immarginate,
about equally, but very slightly, narrowing in front and behind, and armed a little before the middle
with a strong blunt tooth, the base and apex slightly sinuate, the latter acutely margined throughout,
the basal foves large and deep but irregular, the anterior angles laterally prominent, the hind angles
subacute and outwardly directed, the disc broadly but irregularly canaliculate and irregularly depressed
on each side, the entire surface uneven and exceedingly rugosely punctured; scutellum subtriangular,
sparingly punctured, shining ; elytra moderately long, the disc broadly flattened towards the base, parallel
in their basal third, thence rounded and converging to the apex, crenate-striate, the punctures approximate,
coarse, and more transverse in shape towards the base, and outwards from the middle rapidly becoming
very much finer and shallower, the interstices very strongly raised and convex (the first and second
flatter) throughout, and very sparingly and minutely punctured, the surface greenish-sneous, shining,
the third to the seventh interstices in part testaceous, the testaceous colour not extending to the base on
the third and fourth interstices, and more or less interrupted on the others at and behind the middle;
beneath reddish-brown, rather dull, almost glabrous, shallowly and sparingly but somewhat coarsely
punctured, the sides of the metasternum and the flanks of the prothorax very coarsely so; legs rather
long, very closely and roughly punctured, dull brownish-piceous, the femora and tibie at the base reddish ;
the first joint of the hind tarsi very long, longer than the apical joint.

Length 14 millim.; breadth 44 millim. ( 9.)

Hab. Panama, Chiriqui (Zrétsch).
This species will be readily identified from our figure; it has no near known ally,

though an undescribed form from Cayenne in Mr. F. Bates’s collection slightly
approaches it.

OTOCERUS. 381

b. Anterior trochanters produced into a sharp curved tooth in the male. Elytra
unicolorous.

5. Otocerus hamatus. (Tab. XVI. fig. 22, 3.)

Elongate ovate, moderately convex, dull brownish-bronze or reddish-brown. Head finely and closely punctured
in front, much more coarsely so behind, feebly impressed between the eyes, the anterior half and the oral
organs reddish-brown ; eyes large, approximate in the male, narrowly separated in the female; antenne
slender in both sexes—in the male moderately long, joints 4-10 a little dilated at their inner apical angle,
3 very short, 4 nearly twice as long as 3, 5—7 subequal, 8-10 decreasing slightly in length and much longer
than broad, 11 as long as 10 and bluntly rounded at the apex—in the female shorter, joints 4-10 not
extended at their inner apical angle, 11 oblong ovate—ferruginous or fusco-ferruginous ; prothorax trans-
verse, slightly convex, the sides immarginate, angularly dilated on each side in the middle and there armed
with a short tooth, and thence to the base and apex obliquely converging, a little more narrowed in front
than behind, the apex nearly straight, the base feebly bisinuate, the anterior angles rather prominent, the
hind angles subrectangular, the disc a little flattened, shallowly canaliculate, and broadly transversely
depressed behind, the basal fovee large but not deep, the surface rather uneven, coarsely, shallowly, and
closely punctured, the punctures here and there confluent ; scutellum scutiform, rather closely punctured ;
elytra comparatively rather short, subparallel in their basal third, coarsely crenate-striate, more finely so
towards the apex, the interstices smooth and convex throughout, the surface rather more shining than
that of the head and prothorax; beneath dull reddish-brown, finely, shallowly, and sparingly punctured,
the sides of the metasternum and the flanks of the prothorax coarsely and shallowly so; pro- and
mesosternum broad, the former depressed in the middle between the coxe and declivous behind; legs
slender, very closely and somewhat coarsely punctured, the basal half of the femora very much smoother,
more or less ferruginous, the femora usually stained with piceous; the first joint of the posterior tarsi
very long, about half as long again as the apical joint ; the anterior trochanters produced into a fine sharp
slightly curved tooth, the anterior tibie very slightly curved and sinuous (as in the female), and the fifth
ventral segment broadly and shallowly depressed in the middle, in the male.

Length 104-12 millim.; breadth 33-4 millim. (¢ 9.)

Hab. Nicaragua, Chontales (Belt, Janson).

Many specimens. 0. hamatus is readily identified by the dull brownish-bronze
surface, the elongate-ovate shape, the comparatively slender antenne, the shape and
sculpture of the thorax, the somewhat coarsely crenate-striate elytra, and the convex
interstices; and also by the sharply-toothed anterior trochanters in the male.

2. Eyes much smaller, widely separated.

+ Elytra pointed at. the apex, moderately long ; upper surface bronze.
6. Otocerus microps. (Lab. XVI. fig. 23.)

Moderately elongate, rather convex, greenish-bronze, shining. Head rather coarsely, closely, and irregularly
punctured, the epistoma much more finely so, the latter transversely impressed in the middle behind, the
vertex longitudinally grooved in the middle, the groove extending to the epistoma ; eyes small, widely
separated ; antenn stout, rather short, much widened outwardly, joints 4-10 flattened, 4 much longer
and wider than 3, 5-10 each much shorter than 4, nearly equal in length, and about as broad as long,
11 ovate, bluntly rounded at the apex, the joints brownish-piceous, «neous towards the base ;_ prothorax
transverse, subquadrate, convex, but a little flattened on the middle of the disc, the sides almost straight
behind, slightly sinuate immediately before the subacute hind angles, very gradually and obliquely con-
verging from the middle to the apex, with a short blunt median tooth, and from the tooth to the rounded

882 HETEROMERA.

(but rather prominent) anterior angles finely margined (the margin not visible from above), the base feebly
bisinuate, the apex nearly straight, the basal fovese narrow, the disc canaliculate and irregularly depressed
on each side about the middle, the surface very irregularly, somewhat coarsely, and moderately closely
punctured, more sparingly so on the disc; scutellum triangular, sparingly punctured ; elytra conver,
moderately long, widest at the base, the humeri rather prominent and impressed within, subparallel in
their basal third, rapidly narrowing from the middle to the apex, the apices a little divergent and sub-
mucronate, rather coarsely punctatc-striate, the punctures becoming finer towards the apex and oblong in
shape, the interstices smooth and feebly convex throughout; beneath more shining, greenish-bronze, the
ventral segments 1-4 sparingly, subequally, and somewhat finely, but deeply, punctured, the fifth segment
much more coarsely so, the sides of the metasternum and the flanks of the prothorax very coarsely
punctured ; legs moderately Jong, the femora shallowly and rather finely, the tibize more coarsely, punc-
tured, greenish-eneous, the tarsi dark violaceous; the first joint of the posterior tarsi long, about as long
as the apical joint ; the tibiw slightly curved, the anterior pair a little sinuous.
Length 12 millim. ; breadth 34 millim.

Hab. Nicaracua, Chontales (Belt).

One example, apparently a male. This species has quite a different facies from its
allies; it is easily identified by the elytra being narrowed from a little below the base
and submucronate at the apex, the canaliculate head and thorax, the small eyes, &c.

TT Llytra rounded at the apex, short ; upper surface violaceous.
7. Otocerus impressipennis, (Tab. XVI. fig. 24, 2.)

Oblong ovate, rather broad, moderately convex, bright violaceous. Head closely and somewhat coarsely punc-
tured, the punctures more irregular and here and there confluent between the eyes, the latter compara-
tively small and widely separated in both sexes; antenne moderately long and stout, very little shorter
in the female, the third joint much shorter than the fourth, joints 4-10 angularly produced at their inner
apical angle and rather broadly flattened, still broader in the female (7 and 8 the widest) and all longer
than broad, the apical joint narrower and ovate, the latter more or less ferruginous, the rest violaceous or
cyaneous ; prothorax broad, strongly transverse, convex, the sides subangularly dilated in the middle and
there armed with a short tubercle, narrowly but completely margined (the margin in part visible from
above), strongly narrowed and rounded in front, and almost straight or feebly narrowed behind, the apex
nearly straight, the base slightly sinuate, both very strongly margined, the anterior angles deflexed and
broadly rounded, the hind angles subrectangular, the disc deeply transversely impressed before the base,
and usually with a shallow irregular fovea on each side about or a little before the middle, between
which and the lateral margin (in some examples) is a long transverse impression, the basal foves deep
and oblique, the surface finely and sparingly punctured; scutellum large, triangular, finely punctured ;
elytra comparatively short and broad, subparallel in their basal half, thence rapidly rounded and converging
to the apex, the humeri prominent and impressed within, finely punctate-striate, the strise interrupted
before the middle by a strong transverse or oblique elevation extending from the second to the sixth
interstices, the elevation bifurcate laterally (with the lower ramification extending to the eighth interstice)
and limited before and behind by a deep transverse or oblique impression, the interstices feebly convex
about the middle and flat beyond, and finely and sparingly but quite distinctly punctured, the epipleuree
extending rather broadly to the apex ; beneath bright cyaneous, almost smooth, the fifth ventral segment,
the metasternum and side-pieces, and the flanks of the prothorax with scattered moderately coarse
impressions ; legs moderately long, sparingly punctured, violaceous, the first joint of the posterior tarsi
longer than the apical joint ; anterior tibie slightly curved in the male, the fifth ventral segment unim-
pressed in this sex.

Length 10-117 millim. : breadth 33-41 millim. (¢ @.)

Hab. Panama, Bugaba 1000 feet (Champion, Trétsch).

OTOCERUS.—PSEUDOTOCERUS. 383

Six examples. In general facies this insect departs widely from the described species
of Otocerus; I am unable, however, to satisfactorily separate it from that genus. The
unicolorous violaceous surface, serrate antennz, widely separated eyes, broadly rounded
anterior angles of the thorax, and transversely creased elytra readily distinguish
O. impressipennis from its allies. The thorax is still more distinctly margined at the
sides than in O. nicaraguensis: in this respect O. impressipennis differs from the more
typical species much in the same way as does Pecilesthus from Strongylium.

PSEUDOTOCERUS.

Near Otocerus and differing as follows :—Head longer and more exserted; eyes small, more or less widely
separated, and distant from the prothorax; last joint of the maxillary palpi less strongly securiform ;
antenne long and rather slender, a little flattened from the fourth joint, the third joint about one half or
less than one half the length of the fourth, the joints 4-10 subparallel and scarcely dilated at their inner
apical angle; prothorax cylindrical, immarginate at the sides, almost unimpressed ; elytra more or less
attenuate behind ; legs very slender, the intermediate and posterior pairs exceedingly long and slender ;
the first joint of the posterior tarsi very long, in P. longipes three times, in P. attenuatus twice, as
long as the apical joint; prosternum longitudinally and angularly raised on each side (very sharply so in
P. longipes) between the coxe ; form elongate, cylindrical.

This new genus is proposed for the Brazilian Stenochia longipes, Lucas, and an
undescribed form from Nicaragua. Maklin places the former somewhat doubtfully in
Otocerus, and at the end of that genus, and at the same time calls attention to the
peculiar form of the prosternum, &c. ; a second species having now been discovered the
differences are such as to warrant their separation.

1. Pseudotocerus attenuatus, (Tab. XVI. fig. 25, 2.)

Subcylindrical, narrow, cyaneous, with a violaceous tinge, moderately shining. Head very closely and some-
what coarsely punctured behind, irregularly so between the rather widely separated eyes, more finely
punctured in front, the antennary orbits very prominent; antenne with the third joint very short, not
half the length of the fourth, the joints from the fourth long and rather broadly flattened almost from
the base and very little dilated at the inner apical angle, 5-7 shorter than 4, subequal (the rest missing),
violaceous ; prothorax cylindrical, nearly as long as broad, gradually narrowing from the base (a little
more rapidly so near the apex), the base and apex nearly straight, the latter very strongly margined, the
anterior angles obtuse, the hind angles subacute, the basal fovese very shallow, the disc obsoletely canali-
culate, the surface closely and somewhat coarsely punctured, the punctures here and there confluent ;
scutellum subtriangular, violaceous ; elytra long and attenuate, subparallel in their basal half, the apices
almost pointed, rather coarsely punctate-striate, the punctures oblong in shape and coarser towards the
base, and finer and shallower towards the apex, the interstices flat to beyond the middle, slightly convex
behind, and closely and finely punctured; beneath rather more shining, violaceous, the ventral surface
very finely and sparingly punctured, the fourth and fifth ventral segments more coarsely so, the sides
and side-pieces of the metasternum and the flanks of the prothorax closely and coarsely punctured ;
legs coarsely and somewhat closely punctured, violaceous, the tibie towards the base and the tarsi
reddish.

Length 11 millim.; breadth 23 millim. (¢ -)

Hab. Nicaracua, Chontales (Belt).

384 HETEROMERA.

One mutilated example. This species is at once separated from P. longipes by the
more shining and unicolorous surface, more dilated antenne, less coarsely sculptured
‘ elytra, &c.; the third joint of the antenne is shorter than in P. longipes.

With Pseudotocerus we finish the first family, the Tenebrionide, of the series to be
treated in this volume. During the course of publication a large amount of additional
material has come to hand. The second Mexican expedition of Herr Hége, made in
1885-1887, has brought to light a number of new species, or species not hitherto
known from within the limits of the Central-American fauna. The exploration of the
Northern Mexican States, more especially of Chihuahua and Durango, has proved still
further the identity of the Coleopterous fauna of the Southern United States and
Northern Mexico,—several well-known North-American forms, including two genera
not hitherto recorded from so far south, viz. Embaphion and Alobates, as well as
various species of Asida and Elwodes, having been discovered by Herr Hoge.

These and the numerous new species (which include some very interesting forms of
Asidine) will be included in the Supplement.

The genus ELusattus, as anticipated, proves to be more numerous in species in Northern
Mexico, four only being known at the time of publication.

The whole of the species of ‘Helopides’ and of the following groups contained in
Herr Hoége’s collection were received in time to be inserted in their proper places.

To Mr. Flohr of Mexico, at whose instigation the second expedition of Herr Hoge
was made, we are also indebted for various interesting Mexican species.

From the Island of Ruatan, Honduras, a small collection of Coleoptera has been
sent to us by Mr. Gaumer; and though it contains no new Tenebrionide, it proves the
existence of various species of Platydema in the island.

The only other important addition to the Central-American Tenebrionide known to
me as yet is a large maculated species of Zophobas (closely allied to, if not identical
with, a South-American form), of which we have received a single example from
Dr. Staudinger; this insect is from Chiriqui.

CISTELID A. 885

Fam. CISTELIDA.

The tropical forms of Cistelide have been much neglected, and the majority of the
species existing in collections are still undescribed. Nota single species has been as
yet described or noticed from any part of Central America*, though the family is very
numerously represented in every part of the Neotropical Region. Lobopoda is perhaps
the most characteristic genus of Cistelide in the New World; it contains upwards of
forty species in Central America. Hymenorus also contains a large number of species
in our region, though it is of a much more northern distribution and does not extend
south of Nicaragua. The “ Lystronychides,” the genera of which contain the most
characteristic forms of the Tropical-American Cistelide, are poorly represented in
Central America; the species of this group are usually more brightly coloured, and in
one genus (Prostenus) the antenne have their outer joints greatly dilated and flattened.
The group ‘“‘ Cteniopides,” in which the sixth ventral segment is extended beyond the
fifth and visible in both sexes, is not represented in Central America. The Cistelide
are numerous in both the Old and New Worlds and a very large number inhabit
Australia. Nearly the whole of the Central-American species are described as new,
and many new genera have been required for them. ‘These insects are found upon
trees or herbage and also beneath the loose bark of trees; no doubt the earlier stages
of many of the species are passed in decaying timber. .

Excellent specific characters exist in many of the members of this family in the
structure of the secondary sexual organs of the males; and in the genus Lobopoda
these characters are of great assistance in discriminating the very numerous closely
allied species. These parts being very hard and chitinous they can be extracted and
examined with very little difficulty, and they are frequently extruded at the time of death.
Numerous specimens of the same species have in some cases been examined and the
structure proves to be invariably constant, the only variation being a little in degree.
The sixth or last ventral segment, which in the Central-American Cistelide is usually
completely hidden beneath the fifth in both sexes, is in many genera greatly modified
and has on either side a long projecting lobe; these lateral lobes no doubt form clasping-
organs, and they vary greatly in shape (sometimes being of a very complex character)
according to the species. Above and on either side of the long chitinous central sheath
containing the intromittent organ (and quite independent of the lateral lobes) a stout
chitinous piece more or less rounded off at the end and concave within is visible: these
pieces are connected above by membrane, and are more or less approximate when the

* The genus Blepusa was established by Prof. Westwood (Trans. Ent. Soc. Lond. iii. p. 69) upon a single
species, B. costata, the exact locality for which was not certainly known; the insect was supposed to be from
‘‘Mexico or some adjacent part of South America.” It cannot be regarded as belonging to the Central-

American fauna.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1888. 3 DD

386

HETEROMERA.

central sheath is withdrawn and partly close the orifice; they vary very little in the

species examined, and do not call for particular comment.

The chitincus central sheath

works freely in and out and is easily extracted entire; it varies considerably in structure
in the different species, though to a less degree than the lateral lobes of the segment.
These modifications of structure will be better understood from our figures; it is almost
impossible to describe them satisfactorily *.

The pectinate claws easily distinguish the Cistelide from the preceding and following

groups.

The following table, based solely upon species here enumerated,

identification of the Central-American genera :—

Penultimate joint of the tarsi (and sometimes the third or more of
the basal joints of the two anterior pairs in the male) more or less
lobed beneath ; intercoxal process of the abdomen (except in Menes)
narrowly triangular.

Penultimate joint of the tarsi not lobed beneath

. Body winged .

Body subapterous
Body apterous

. Anterior face of the prosternum more or less vertical, the head resting

on this part in repose; eyes usually very large, at least in the male
Anterior face of the prosternum with a gradual slope, the space in
front of the anterior coxe broader .

. Mandibles at most feebly cleft ; fifth ventral segment in male normal ;

body not metallic. See ee ee ek ke
Mandibles deeply cleft; fifth ventral segment in male abnormal;
body metallic, hirsute

transverse . . . . . - . soe ee ee
Prothorax about as broad as the elytra at “the base, twice as broad
as long . .
Prothorax broader than the ‘elytra at “the base, the hind angles v very
prominent and directed backwards . . . . ....

. Prothorax not constricted behind .

Prothorax constricted behind and subcordate in shape

- Prothorax with a deep transverse basilar groove; body glabrous .

Prothorax without transverse basilar groove ; body pubescent

. Antenne very long and more or less filiform in both sexes .

Antenne with the basal joint of usual length, the joints each a little
widened towards their apex in both sexes . .
Antenne with long basal joint, joints 4-6 dilated within i in the male.

will assist in the

Lobopoda.

a B27 777 7) 2
. Prothorax narrower than the elytra at the base, more or less

ll.
7.
Telesicles.

Charisius.
8.
9.

Hymenorus.
Theatetes.

* Our figures have been drawn by Mr. G. S. Saunders, to whom we are much indebted for his assistance in
the examination of these complex organs.

10.

ll.

12.

13.

14.

15.

16.

17.

18.

19.

Lobopoda, Solier, Ann. Soc, Ent. Fr, 1835, p. 233; Lacordaire, Gen. Col. v. p.

LOBOPODA.

Last joint of the labial palpi broad, triangular; last joint of the
maxillary palpi broadly triangular; elytra moderately long .
Last joint of the labial palpi ovate, the apex truncate; last joint of

the maxillary palpi elongate-triangular ; elytra very long, parallel,
and depressed .

Mesosternum longitudinally and convexly raised, its anterior face
vertical; legs and antenne rather short; body ovate .
Mesosternnini normal; legs and antennz short; body short ovate.
Head visible from above ; antenne not compressed, freely articulated,
sometimes with joints 3-5 dilated in the male . . ee
Head completely invisible from above; antenne compressed, closely
articulated, and short . os . Loe .
Prothorax long and cylindrical; antenne long, the joints obeonic;
body glabrous . 2 8 an . one
Legs and antenne long and slender ; head short, the eyes 1s close to the
anterior margin of the prothorax ; body submetallic .
Legs and antenne stouter; head longer, the eyes distant from the
prothorax; body subopaque or dull Loe
Intercoxal process of the abdomen narrowly triangular .
Intercoxal process of the abdomen broadly triangular .
Antenne with the third joint shorter than the fourth (often v very
short in the male); joints 4-10 longer and broader in the male
Antennze with the third and fourth joints equal; joints 4~10 scarcely
differing in the male
Head subrostrate ;
Head not prolonged in front.
Femora clavate towards the apex ;
very large and broad and much flattened .

antenne (female) with the joints cylindrical .

antenne with the outer joints

Femora not clavate. .

Prothorax as broad as the elytra

Prothorax narrower than the elytra oe Loe ee

Antenne with the penultimate joints transverse or about as long
as broad.

Antenne with the penultimate joints longer than broad, filiform or
flattened

LOBOPODA.

Monoloba, Solier, loc. cit. p. 235.

387

Allecula.

Alethia.

Polyidus.
Menes.

Meneceus.
Diopenus.
Narses.
Pitholaus.
Phedius.
15.

16.
Cistela.
Tsomira.
Eraias.
17.
Prostenus.
18.

Cteisa.

19.

Xystropus.

Lystronychus.

500 (1859).

This genus is peculiar to the New World and contains a very large number of
fourteen only have been referred to it as yet, all of which are from South

species ;

America.

Lobopoda has its headquarters in the forest-region of Tropical America, the

3 DD 2

388. HETEROMERA.

genus ranging from the Southern United States* to the Argentine Republic. No less
than forty-four species are here enumerated from Central America; twenty-five of these
were captured by myself in Guatemala or the State of Panama. The equally numerous
South-American forms stand greatly in need of revision, several of those described by
the older authors being quite unrecognizable from the descriptions.

Important specific characters are to be found in the secondary sexual organs or
cedeagus of the males, as will be seen from a reference to our figures; and also in other
sexual marks of distinction mentioned in the following descriptions.

The genus might be further divided by the separation of those species which have
the four basal joints of the intermediate, as well as those of the anterior, tarsi lobed
beneath in the males, and also by the extraction of those having the four basal joints
of the anterior tarsi in the males and the penultimate joint of the intermediate and
hind tarsi in both sexes (Monoloba, Sol.) lobed beneath ; these characters, however, are
subject to variation. In some species the females have one or two joints, in addition
to the penultimate one, of the anterior and intermediate tarsi lobed beneath.

L. gigantea may possibly on the discovery of the male have to be removed to another
genus. J. nitida and the following six species form a little group known to me only
as yet from Central America. In Z. tenuicornis the anterior tibie in the male are
simply curved, and the penultimate joint of the four anterior tarsi is very narrowly
lobed beneath. Some few species, L. acutangula, L. mexicana, &c., have the elytra
sharply pointed or mucronate at the apex in the female; two, Z. cariniventris and
LL. irazuensis, have the venter longitudinally carinate in the middle in the male. The
chief characters for the genus lie in the anterior face of the prosternum being more or
less vertically inclined, the head resting on this part in repose; and in the large eyes,
especially in the males. The base of the prothorax is more strongly bisinuate than
in the Central-American species of Allecula.

The different species are found beneath loose bark or by beating the withered
branches of fallen trees, and also upon herbage ; one or two are gregarious in their habits.

Sect. I. Anterior tarsi in the male with the four basal joints more or less lobed and
produced beneath, the penultimate joint of all the tarsi strongly so in both
sexes ; body pubescent. (Monoloba, Sol., Lacord.)

1. Prosternum horizontal, subacuminately produced, and received by the deeply
excavate mesosternum.

1. Lobopoda gigantea. (Tab. XVII. fig.1, ¢.)

Elongate, broad, rather depressed, dark bronze, shining, thickly clothed with ashy pubescence. Head
very irregularly, somewhat closely, and rather coarsely punctured ; eyes (@ ) moderately large, widely

* The North-American Allecula punctulata (Melsh.), A. erythrocnemis (Germ.), and A. atra (Say) belong to
this genus as here understood.

LOBOPODA. 389

separated; prothorax very broad at the base, the sides a little sinuate behind and rapidly converging
from the very acute outwardly directed hind angles, the disc flattened and distinctly canaliculate, the
basal fovew large and rather deep, the surface very irregularly, rather “coarsely, and somewhat closely
punctured, a narrow ill-defined longitudinal space on the middle of the disc impunctate; elytra long and
broad, narrowing from the base, broadly depressed below the scutellum, the base rather deeply impressed
on each side within the humeri, with rows of fine closely placed punctures which gradually become finer
towards the apex, the interstices here and there feebly raised in the middle, flat on the basal half of the
disc, and very sparsely and very irregularly punctured, the punctures on the apical half as coarse as those
of the strie ; beneath dark bronze, rather closely and somewhat coarsely punctured, a longitudinal space
on the middle of the metasternum impunctaté; prosternum horizontal, convexly and subacuminately pro-
duced and received by the deeply excavate mesosternum ; legs and antenne obscure dark bronze, the
former very thickly pubescent.
Length 19 millim.; breadth 7 millim. (9.)

Hab. Mexico, Santecomapan (Sallé).

A single female example. This species differs from the known forms of Zobopoda in
the shape of the prosternum; but in its other characters it approaches the first section
of that genus so closely, more especially to LZ. grandis, that 1 am unwilling to separate
it in the absence of the male sex.

2. Prosternum abruptly declivous behind.

* Upper surface brownish-piceous.

2. Lobopoda grandis.

Elongate, very broad, brownish-piceous or piceous, shining, very thickly pubescent. Head coarsely and irre-
gularly punctured, the punctures here and there confluent on the vertex; eyes (2) moderately large,
somewhat widely separated; prothorax very broad, not very convex, sinuate at the sides behind, the hind
angles directed a little outwards though somewhat obtuse, the disc subcanaliculate, broadly but shallowly
impressed in front, deeply transversely impressed before the base, and with a shallow irregular impression
on each side about the middle, the basal impression extending on each side to the deep foves, the surface
coarsely, irregularly, and somewhat closely punctured; elytra broad, gradually narrowing from a little
below the base, with rows of rather fine punctures placed in broad grooves, the strizw only distinct towards
the apex, the interstices moderately convex, strongly so beyond the middle, and sparsely and somewhat
finely punctured ; beneath thickly pubescent, coarsely and rather closely punctured ; mesosternum convex,
its anterior face abruptly declivous and excavate towards the base only ; legs thickly pubescent and closely
punctured, brownish-piceous, the tarsi rather short and stout; antenne fusco-ferruginous.

Length 17-174 millim.; breadth 63-63 millim. ( 2.)
Hab. Nicaracua, Chontales (Belt, Janson).

Three female examples. ‘This species, except as regards the structure of the pro-
sternum, seems to be almost intermediate between Z. gigantea and the typical forms of
Lobopoda; both are comparatively very broad and large in size. The mesosternum in
L. grandis is much more convex and has its anterior face more strongly declivous than

in any of the other species of the genus known to me. The male remains to be

discovered.

390

HETEROMERA.

** Upper surface dark bronze, the elytra of a lighter eneous tint.
3. Lobopoda asperula. (Tab. XVII. figg. 2, 24, 6, ¢ -)

Elongate, broad, brownish-bronze, the elytra lighter in tint and with a more distinct eneous tinge and

more shining, thickly clothed with ashy pubescence. Head coarsely and irregularly, but rather sparsely,
punctured; eyes moderately large, rather widely separated in the male, separated by a broad space in the
female; prothorax broad, narrowing from the base, the sides rather strongly sinuate behind, the hind
angles subacute and extending outwards (reaching almost as far outwardly as the humeri), the disc
obsoletely canaliculate (except in front), impressed in the middle before the base, and with a shallow
irregular impunctate depression on each side about the middle, the basal fovese very deep, the surface
closely, coarsely, and irregularly punctured: elytra long and broad, subparallel in their basal third,
gradually narrowed beyond, somewhat broadly rounded behind, comparatively deeply impressed at the
base on each side within the humeri, with very finely and closely punctured stri, the strie very lightly
impressed, the interstices each with an ill-defined, much interrupted, and rather sinuous series of feeble
longitudinal elevations, almost flat on the basal half of the disc, and with a few scattered punctures, the
punctures not much finer than those of the strie; beneath sparsely and moderately coarsely punctured,
the middle of the metasternum behind more closely so in the male; legs stout, fusco-ferruginous, the
femora darker and seneous in tint; antennee fusco-ferruginous.

¢. Anterior tibie angularly widened on the inner side before the middle. The fifth ventral segment deeply

and semicircularly excavate in the middle at the apex. The lateral lobes of the last ventral segment long,
strongly sinuous (though parallel if viewed from beneath), the apices produced and recurved upwards,
forming a sort of hook, and almost pointed; the central sheath broad, gradually narrowing, the extreme
apex recurved and somewhat hooked. (Figg. 2a, 20.)

Length 124--17 millim.; breadth 54 millim. (¢ 2.)
Hab. Mexico (coll. F. Bates), Yucatan (Sallé, Gawmer).

A large number of examples of both sexes. In the peculiar sculpture of the elytra
this species somewhat resembles L. gigantea, though it is very different in shape.

Labelled Z. asperula, Deyr., in the Sallé collection, and J. senex, Dup., in Mr, F.
Bates’s collection.

Sect. II. Anterior (and in several species the intermediate) tarsi in the male with the

four basal joints more or less lobed beneath, the penultimate joint of the
anterior and intermediate pairs strongly so in both sexes; prosternum
abruptly declivous behind. (Lobopoda, Sol., Lacord.)

a. Body pubescent.

* Upper surface black, piceous, or reddish-brown.

+ Anterior and intermediate tarsi in the male with the four basal joints lobed beneath.

4. Lobopoda acutangula, (Tab. XVII. fige. 3, 3a.)

Elongate, moderately broad, brownish-piceous or black, shining, rather sparsely pubescent. Head with

scattered moderately coarse punctures; eyes large and approximate in the male, rather smaller and mode-
rately widely separated in the female; prothorax sparsely and somewhat coarsely punctured, the disc
indistinctly canaliculate, and transversely impressed before the base, the basal foves deep, the sides a
little sinuate before the base and somewhat rapidly converging from the more or less acute outwardly
directed hind angles, the latter extending laterally as far as the humeral angles of the elytra; elytra

LOBOPODA. 39]

long, wide at the base, rather rapidly narrowing from a little below the shoulders, somewhat deeply
striate, the strie very closely punctate, the interstices feebly convex on the basal balf of the disc, strongly
so at the sides and beyond the middle, and with scattered rather coarse punctures, the apices slightly
produced and more or less sharply pointed in the female; beneath very sparsely punctured; legs and
antenne more or less ferruginous, the femora usually darker.

$. Anterior tibie slightly sinuous within. The fifth ventral segment broadly and semicircularly excavate in
the middle behind, the excavation extending to the apical margin. The lateral lobes of the last ventral
segment long and curved, slightly setose within, very broad towards the base, narrowing outwardly, and
hooked upwards at the apex; the central sheath rather abruptly narrowed and acuminate at the apex,
the apical portion short, feebly setose beneath, and slightly recurved, the extreme apex somewhat hooked.
(Figg. 3, 3.4.)

Length 123-133 millim.; breadth 33-44 millim. (¢ 9.)

Hab. Mexico, Jalapa (Hoge), Orizaba (Sallé); Britise Honpuras (Blancaneaux) ;
GuatemaLa, El Reposo, Zapote, Tamahu, Purula (Champion); Nicaragua, Chontales
(Belt); Panama, Volcan de Chiriqui (Champion).

Numerous examples. ‘This species is chiefly distinguished amongst its allies by the
sharp and laterally extended hind angles of the thorax; and by the interstices of the
elytra being strongly convex at the sides and apex, and only feebly so on the anterior
half of the disc. The very deep semicircular excavation at the apex of the fifth ventral
segment is a marked male character, as also is the structure of the cedeagus. In some
examples the hind angles of the thorax are less acute than in others; the apices of the
elytra in the female are always more or less produced and pointed.

5. Lobopoda tristis. (Tab. XVII. figg. 4, 4 a.)

Moderately elongate, rather broad, brownish-piceous or black, shining, sparsely pubescent. Head with scattered,
rather coarse punctures; eyes very large and approximate in the male, smaller and moderately widely
separated in the female; prothorax sparsely, but somewhat coarsely, punctured, the disc very shallowly
canaliculate, and shallowly transversely impressed before the base, the basal fovee deep, the sides slightly
sinuate behind, the hind angles somewhat acute ; elytra moderately long, a little rounded at the sides, and
gradually narrowing from a little below the base, moderately deeply striate, the strie closely punctured,
the interstices slightly convex, and with scattered rather coarse punctures, the apices feebly mucronate
in the female; beneath sparingly, but somewhat coarsely, punctured, the metasternum rather more closely
so in the male; antenne ferruginous ; legs brownish-piceous, the tarsi more or less ferruginous.

3. Anterior tibiz widened on the inner side from near the base, and thence to the apex a little sinuous
within. The lateral lobes of the last ventral segment long and twisted, obliquely truncate at the apex,
widened and subangularly raised on each side inwardly and outwardly (between which is a deep groove)
towards the base, the inner edges finely serrate within ; the central sheath very broad, the apical portion
narrower, setose beneath, spoon-shaped, and recurved, the sheath itself armed just behind the spoon-shaped
piece with two transversely placed rounded prominences above. (Figg. 4, 4a.)

Length 113-18 millim.; breadth 44 millim. (¢ @-)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. Shorter, smaller, and with the elytra rather more parallel and
the striz shallower than in L. panamensis ; the hind angles of the thorax more acute,
&c. The narrower form, more shallowly impressed thorax, and feebly mucronate apices
of the elytra (in the female) separate L. tristis from L. mucronata. The complicated
structure of the cedeagus of the male will be best understood from our figure.

392 HETEROMERA.

6. Lobopoda mexicana. (Tab. XVII. figg. 5, 5a, 3.)

Moderately elongate, black or brownish-piceous, rather dull, somewhat thickly pubescent. Head with scattered
rather coarse punctures; eyes large and approximate in the male, considerably smaller and comparatively
widely separated in the female; prothorax sparsely and somewhat finely punctured, the disc obsoletely
canaliculate, and very shallowly transversely impressed before the base, the basal fovew shallow, the hind
angles more or less rectangular; elytra moderately long, narrowing very gradually from a little below the
base, comparatively broad behind, the apices feebly (in some examples very distinctly) mucronate in the
female and somewhat broadly rounded in the male, with moderately deep and closely punctured strie,
the interstices very feebly convex, a little more strongly so at the apex, and moderately coarsely and
somewhat closely punctured; beneath sparsely and moderately coarsely punctured, the metasternum in
the middle behind closely so in the male; legs piceous or dark ferruginous, the tarsi lighter; antenne
ferruginous.

3. Anterior tibie on the inner side widened from near the base and thence to the apex sinuous. The lateral
lobes of the last ventral segment long and twisted, somewhat spoon-shaped and curved towards the apex,
widened and subangularly raised on each side inwardly and outwardly (between which is a deep groove)
towards the base, the inner edges very finely serrate within; the central sheath very broad, the apical
portion setose beneath, spoon-shaped, and recurved, the sheath itself armed just behind the spoon-shaped
piece with two transversely placed rounded promirences above. (Fig. 5a.)

Length 11-183 millim.; breadth 4-42 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates), Presidio (Forrer), Santecomapan, ‘Tuxtla, Cordova
(Sallé), Jalapa, Frontera in Tabasco (Hége), Temax in N. Yucatan (Gawmer); Britisu
Honpvuras, Belize (Blancaneaux); GuateMaLa, San Gerdnimo, Zapote (Champion).

Found in great abundance in Yucatan, and also at Jalapa and elsewhere in Mexico,
but becoming much rarer southwards. ‘This insect resembles LZ. éristis, but is smaller,
and also differs as follows:—The thorax is more finely punctured, and the hind angles
are rectangular and less acute; the elytral interstices are flatter and more finely punc-
tured; the metasternum is more closely punctured in the male, and the upper surface
is less shining and more thickly pubescent. The cedeagus of the male is very similar
in structure; the lateral lobes of the last ventral segment are, however, more rounded
(and less truncate) at the apex, and more curved. .

In some female examples the apices of the elytra are sharply mucronate, in others
only feebly so,

Labelled L. sparsepunctata, Deyr., in the Sallé collection.

The North-American Allecula punctulata (Melsh.) is an ally of L. mexicana; it is.
known from as far south as Laredo in Texas, just beyond our northern boundary.

tt Anterior tarsi in the male with the basal four joints lobed beneath.
7. Lobopoda panamensis. (Tab. XVII. figg. 6, 6a, ¢.)

Elongate, rather broad, piceous-black, the elytra dark castaneous, shining, very sparsely pubescent. Head
with scattered, rather coarse, punctures; eyes very large and approximate in the male, smaller and
moderately widely separated in the female; prothorax sparsely but comparatively coarsely punctured, the
disc very shallowly canaliculate, with a rounded impression on each side about the middle, and broadly
transversely impressed before the base, the basal impression connecting the rather deep fover, the hind
angles subrectangular; elytra long, broad towards the base, somewhat rapidly narrowing from a little
below the shoulders, deeply striate, the stria closely punctate, the interstices convex, and with a row of

LOBOPODA. | 393

not very closely placed punctures on each side, the apices in the female slightly thickened and divergent ;
beneath piceous, almost glabrous, sparingly but somewhat coarsely punctured, the metasternum more
closely so in the middle in the male, the fifth ventral segment broadly impressed in the centre in both
sexes; legs and antenne dark castaneous.

g. Anterior tibiee broadly and subangularly dilated on the inner side a little beyond the middle, the dilated
part concave within ; anterior femora with a short tooth a little before the middle. The lateral lobes of
the last ventral segment somewhat spoon-shaped, very long, and inwardly curved, the upper edges very
finely serrate and the lower edges clothed with long fine hairs within ; the central sheath broad, narrowing
to the apex. (Fig. 6a.)

Length 15-16 millim.; breadth 5-53 millim. (¢ 2.)
Hab. Panama, Caldera in Chiriqui 1200 feet (Champion).

Two examples. This species is distinguished by its large size and deeply impressed
thorax, and by the elytra being comparatively broad towards the base.

8. Lobopoda mucronata. (Tab. XVII. fig. 7, 9.)

Moderately elongate, broad, piceous-black, shining, sparsely pubescent. Head with scattered, rather coarse,
punctures; eyes ( 2 ) comparatively rather large, somewhat narrowly separated ; prothorax broad, coarsely
and moderately closely punctured, the disc canaliculate, with a rounded impression on each side about the
middle, and broadly transversely impressed before the base, the basal impression deep and connecting
the fovex, the hind angles a little prominent and directed outwards though somewhat obtuse; elytra
moderately long, broad, deeply striate, the strie closely punctate, the interstices convex, and with a row
of distantly placed punctures on each side, the apices produced into a rather long mucro in the female ;
beneath more shining, sparingly but rather coarsely punctured, the fifth ventral segment broadly impressed
in the middle; legs and antenne ferruginous.

Length 144 millim.; breadth 53 millim. ( 9.)

Hab. Panama, Bugaba (Champion).

One example. Closely allied to L. panamensis, and differing as follows:—The eyes
(in the female) are more narrowly separated; the thorax is more closely punctured,
and has the impressions rather deeper; and the elytra are sharply mucronate at the
apex. LL. mucronata is perhaps a variety of L. panamensis, but in the absence of the
male it is impossible to say for certain; the strongly mucronate apices of the elytra
may prove to be a variable character, as it is in L. mexicana.

9. Lobopoda apicalis. (Tab. XVII. figg. 8, 8 a.)

Elongate, brownish-piceous or black, shining, rather thickly pubescent. Head sparingly but rather coarsely
punctured; eyes very large and approximate in the male, rather smaller and very narrowly separated in
the female; prothorax rather finely and very sparsely punctured, widest at the base, the disc shallowly
canaliculate, and broadly transversely impressed before the base, the basal fovee deep, the sides a little
sinuate behind, the hind angles rectangular or subacute; elytra long, somewhat deeply striate, the striz
with rather coarse impressions throughout, the impressions closely placed and rounded in shape from the
base to the middle and thence to the apex elongate and more scattered, the interstices rather convex and
sparingly punctured, the apices slightly pointed in the female; beneath sparingly and somewhat coarsely
punctured, the fifth ventral segment impressed in the middle in both sexes; legs dark reddish-brown or
piceous, the tibize and tarsi more or less ferruginous ; antenne ferruginous, the three basal joints darker.

é; major. Anterior tibie strongly triangularly widened on the inner side a little beyond the middle; anterior
femora armed with a short tooth. The lateral lobes of the last ventral segment broad and short, some-
what extended laterally, and each armed at the apex with two short curved processes, the outer one of

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, August 1888. 3EE

394 HETEROMERA.

which is obliquely truncate and furnished with numerous long hairs; the central sheath rather broad,
gradually narrowing, its apical portion horizontal, long, and armed with very short sete at the sides and
beneath. (Figg. & 8a.)

3, minor. Anterior tibie merely sinuous within ; anterior femora unarmed.

Length 124-15 millim.; breadth 44-5 millim. (d 2.)

Hab. Guatemata, Capetillo (Champion).

Four examples, three males and one female. This species resembles L. tristis &c.,
but is easily separated by the punctures of the striae being elongate in shape on the
apical half of the elytra. The cedeagus in its complicated structure closely resembles
that of L. seriata.

10. Lobopoda atrata. (Tab. XVII. figg. 9, 9 a.)

Elongate, piceous-black, slightly shining, thickly pubescent. Head with scattered shallow punctures; eyes
large and approximate in the male, rather narrowly separated in the female ; prothorax closely, subequally,
and somewhat coarsely punctured, the disc shallowly canaliculate, and shallowly transversely impressed
before the base, the basal fovea rather deep, the hind angles subrectangular; elytra rather broad towards
the base, rapidly narrowing from a little below the shoulders, with moderately deep and closely punctured
strice, the interstices slightly convex and somewhat closely punctured ; beneath sparsely and rather coarsely
punctured, the metasternum in the middle behind closely so in the male; legs piceous, the tibie and
tarsi more or less ferruginous; antenne ferruginous.

3. Anterior tibie subangularly widened on the inner side towards the base. ‘The lateral lobes of the last
ventral segment long, broad, twisted and spoon-shaped beyond the middle, and abruptly narrowed and
incurved at the apex; the central sheath narrow, the apical portion elongate-triangular, and slightly
setose at the sides and beneath. (Figg. 9, 9a.)

Length 123-13 millim.; breadth 4-4? millim. (¢ 2.)

Hab. Nicaragua, Chontales (Janson, in coll. F. Bates); Panama, Volcan de Chiriqui
(Champion).

Two examples. The comparatively close punctuation and the less acute hind angles
of the thorax, the less convex interstices at the apex of the elytra, the non-excavate
fifth ventral segment in the male, and the differently shaped cedeagus easily distinguish
this species from Z. acutangula, which it otherwise somewhat closely resembles.

The single example (female) from Nicaragua has the thorax more finely punctured
than in the male individual from the State of Panama.

11. Lobopoda subparallela. (Tab. XVII. fig. 10.)

Elongate, black, rather dull, somewhat thickly pubescent. Head with the vertex very closely (almost rugu-
losely), the epistoma rather sparsely, punctured; eyes moderately large, separated by a narrow space
in the male; prothorax convex in front, the sides straight behind, the hind angles more or less
rectangular, the disc slightly impressed before the base, the basal foves shallow, the surface coarsely and
closely punctured; elytra long, subparallel in their basal half, with shallow, closely punctured strie, the
interstices feebly convex, almost flat on the basal half of the disc, and coarsely punctured ; beneath coarsely
and sparsely punctured, the metasternum in the middle behind closely so in the male; legs and antenne
brownish-piceous, the tarsi more or less ferruginous.

g. Anterior tibie sinuous within. The lateral lobes of the last ventral segment moderately long, inwardly
curved, concave, and sparsely and finely setose within, and broadly rounded at the apex; the central

LOBOPODA. 395

sheath almost parallel, very slightly narrowed immediately before the apex, the apical portion finely
setose beneath and a little recurved, the apex itself subtriangular. (Fig. 10.)
Length 124-141 millim.; breadth 4-5 millim. (¢.)

Hab. Mexico, Yolos (Sallé), Jalapa, Cuernavaca, Tehuantepec (Hége).

Four examples, all males, one from each locality. The very closely and coarsely
punctured vertex, the closely and coarsely punctured thorax, the sides of which are
straight behind, and the long and subparallel elytra sufficiently distinguish L. swd-
parallela from the allied forms. The four examples differ a little inter se; in one
specimen the eyes are more widely separated, and the interstices of the elytra are rather
more closely punctured, but I have no doubt that such variation is due to local causes.
L. subparallela is of about the size and shape of L. pallicornis (Fabr.), from Buenos
Ayres, but has the upper surface much more coarsely punctured.

12. Lobopoda seriata. (Tab. XVII. figg. 11, 11 @.)

Elongate, black, slightly shining, sparsely pubescent. Head very sparsely punctured; eyes very large and
approximate in the male, much smaller and rather widely separated in the female ; prothorax transversely
convex, the sides from the middle to the base straight or a little rounded and narrowed, the disc canali-
culate, and sometimes with a very shallow fovea on each side about the middle, the basal fovere deep and
connected by a transverse depression, the hind angles obtuse, the surface with widely scattered moderately
fine punctures ; elytra long, narrowing from a little below the base, with rows of coarse punctures placed
upon rather shallow striae, the punctures towards the apex much more scattered and elongate in shape,
the interstices very feebly convex or almost flat and very sparsely punctured; beneath very sparsely and
rather coarsely punctured, the metasternum in both sexes with widely scattered punctures ; legs brownish-
piceous, the tarsi and antenne more or less ferruginous.

g. Anterior tibie triangularly widened on the inner side before the middle; anterior femora with a short
median tooth. ‘The lateral lobes of the last ventral segment broad, trifurcate, the central lobe oblique, and
with its apex truncate and furnished with a long fringe of hairs, the inner lobe narrow and slightly
recurved and rounded at the apex; the central sheath broad, rounded at the apex. (Figg. 11, 11a.)

Length 103-13} millim.; breadth 34-42 millim. (¢ 2.)

Hab. Mexico, Temax in N. Yucatan (Gawmer).

We have quite recently received a large number of examples of this species from
Mr. Gaumer.

L. seriata closely resembles L. apicalis in the structure of the lateral lobes of the
last ventral segment in the male (differing only in the more angular lateral extension)
and in the elytral sculpture ; it differs greatly, however, in the shape of the thorax, and
in this respect more nearly resembles L. convexicollis and L. oblonga.

Well-developed males have the anterior tibie more strongly triangularly widened

within.

13. Lobopoda convexicollis, (Tab. XVII. fig. 12.)

Moderately elongate, brownish-piceous, shining, somewhat thickly pubescent. Head with the vertex very
closely, the epistoma rather sparsely, punctured; eyes only moderately large and somewhat widely
separated in the male, more distant in the female; prothorax rather broad and convex in front, the
sides almost straight from the middle to the base, the hind angles subrectangular, the disc obsoletely

3 EE 2

396 HETEROMERA.

canaliculate, and a little flattened before the base, the basal fovese moderately deep, the surface rather
coarsely and somewhat closely punctured; elytra moderately long, very gradually narrowed from the
base and rather broad behind, with closely punctured rather shallow striz, the interstices feebly convex,
almost flat on the basal half of the disc, and moderately coarsely punctured ; beneath coarsely but
sparsely punctured, the metasternum in the middle closely so in the male; legs and antenne brownish-
ferruginous.

¢. Anterior tibiee on the inner side angularly widened before the middle, and thence to the apex sinuous. The
lateral lobes of the last ventral segment rather long and stout, inwardly curved, and a little thickened at
the apex, the apex bluntly rounded off; the central sheath gradually narrowed behind, the apical portion
setose beneath, the apex rounded. (Fig. 12.)

Length 113-11% millim.; breadth 4-42 millim. (3 2.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hége); Guatemata, Las Mercedes (Champion).

Three examples. In the comparatively narrowly separated and rather small eyes in
the male, the very closely punctured vertex, and the somewhat parallel shape, this
species approaches L. subparallela; but it is easily separated by its smaller size, shorter
elytra with more finely punctured interstices, more finely punctured thorax, and more
shining surface, the thorax being also broader and more convex in front.

14. Lobopoda oblonga. (Tab. XVII. fig. 13.)

Rather short, brownish-black, shining, sparsely pubescent. Head with the vertex closely, the epistoma
sparsely, punctured; eyes (¢) comparatively small, somewhat widely separated in both sexes; prothorax
strongly transverse, transversely convex, widest at the middle, the sides somewhat rounded and usually
narrowing a little behind, the hind angles rather obtuse, the disc obsoletely canaliculate, the basal foves
shallow, the surface rather coarsely and somewhat closely punctured on the disc and sparsely so towards
the sides; elytra subparallel in their basal third, gradually narrowing beyond, with moderately deep
strie, the striz from the base to the middle closely punctured, the punctures becoming obsolete towards
the apex, the interstices flat on the disc, feebly convex behind, and each with an irregular row of scattered
punctures; beneath sparsely and rather coarsely punctured, the middle of the metasternum more closely
so in the male; legs rather stout, brownish-piceous, the tarsi and the tibie in part more or less ferruginous ;
antenne fusco-ferruginous.

3. Anterior tibie subtriangularly widened on the inner side before the middle. The lateral lobes of the last
ventral segment rather long, inwardly curved, and a little thickened at the apex, the apex bluntly rounded
off; the central sheath gradually narrowed to the apex, the apex rounded. (Fig. 13.)

Length 74-10 millim.; breadth 23-33 millim. (¢ 2.)

Hab. Mexico, Yucatan (coll. F. Bates, Gaumer).

About fifty examples. This species differs from its allies (except Z. seriata) in the
thorax being widest at the middle (consequently a little narrowed posteriorly) and
rounded at the sides. The eyes are rather small and comparatively widely separated
in the male; and the elytra are subparallel towards the base. JZ. oblonga resembles
L. convexicollis, but is smaller, less elongate, and has the hind angles of the thorax
more obtuse, and the interstices of the elytra more thickly and less finely punctured ;
the cedeagus is very similar to that of Z. convexicollis.

15. Lobopoda puncticollis. (Tab. XVII. figg. 14, 144, b, 3.)
Moderately elongate, dark reddish-brown or brownish-piceous, not very shining, thickly pubescent. Head
rather coarsely and somewhat closely punctured; eyes (¢) very large and approximate; prothorax

LOBOPODA. 397

comparatively wide in front, the sides slightly sinuate behind, the hind angles rectangular, the disc very
shallowly canaliculate behind, the basal foves quite shallow, the surface very closely, subequally, and
somewhat coarsely (though shallowly) punctured ; elytra long, gradually narrowing almost from the base,
with closely punctured strie, the interstices feebly convex and rather finely and somewhat closely
punctured; beneath rather sparsely punctured ; legs and antenne ferruginous, the femora darker.

g. Anterior tibie simple. The lateral lobes of the last ventral segment short and stout, broad at the base,
and each with a subangular laterally projecting piece above near the end, the apex blunt, the inner edge
closely and finely serrate ; the central sheath gradually narrowing to the apex, the apical portion elongate,
horizontal, and finely setose at the sides, the apex blunt. (Figg. 14a, 0.)

Length 103-113 millim.; breadth 3-33 millim. (<¢.)

Hab. Guatemata, Capetillo (Champion).

Two male examples. This species is readily separated from most of its allies by the
very closely punctured thorax.

16. Lobopoda yucatanica. (Tab. XVII. figg. 15, 15 a.)

Moderately elongate, dull brownish-piceous, thickly pubescent. Head closely and somewhat coarsely punctured :
eyes (3) very large and approximate ; prothorax wide in front, the sides straight behind, the hind angles
rectangular, the disc almost unimpressed, the basal foves very shallow, the surface finely and densely
punctured ; elytra moderately long, gradually narrowing from a little below the base, with finely and
closely punctured striw, the interstices feebly convex and finely and thickly punctured; beneath some-
what closely and rather coarsely punctured, the metasternum (¢ ) densely so in the middle behind ; legs
and antenne brownish-ferruginous, the former short.

¢$. Anterior tibiz subtriangularly widened on the inner side before the middle. The lateral lobes of the last
ventral segment short, and with a slender club-like prolongation at the end; the central sheath gradually
narrowing to the apex, the latter blunt. (Figg. 15, 15a.)

Length 81 millim.; breadth 3 millim. (¢.-)

Hab. Mexico, Temax in N. Yucatan (Gaumer).

One male example. This species is allied to Z. puncticollis; but differs in its duller
surface, more densely punctured thorax, shorter legs, more closely punctured under
surface, and male characters.

17. Lobopoda attenuata. (Tab. XVII. fig. 16.)

Moderately elongate, dark brownish-piceous or black, shining, thickly pubescent. Head with scattered rather
coarse punctures; eyes large and approximate in the male, moderately widely separated in the female ;
prothorax rather closely but somewhat coarsely (though shallowly) punctured, the disc obsoletely canali-
culate, and shallowly transversely impressed before the base, the basal fovee rather shallow, the hind
angles rectangular; elytra rapidly narrowing from a little below the base, with rather deep and closely
punctured striz, the interstices feebly convex, a little more strongly so at the apex, and somewhat
coarsely punctured, the apices rounded in both sexes ; beneath sparingly but somewhat coarsely punctured ;
legs and antenne more or less ferruginous, the femora darker.

. Anterior tibie triangularly widened on the inner side before the middle. The lateral lobes of the last
ventral segment long, inwardly curved, and somewhat spoon-shaped, a little dilated on the upper
side at the apex; the central sheath narrow, gradually narrowing behind, the apex slightly dilated.
Fig. 16.)

Length 84-10 millim. ; breadth 3-31 millim. (d 2.)

Hab. Guatemata, Capetillo (Champion); Nicaracua, Chontales (Belt).

398 HETEROMERA.

Three males from Guatemala, and a pair from Nicaragua. The latter differ from the
others in being rather less elongate in shape; but as the cedeagus of the male agrees
precisely in structure with that of the Guatemalan insect, 1 have no doubt of its specific
identity.

‘L. attenuata resembles L. acutangula and L. atrata in shape ; it is, however, more
nearly allied to the latter, from which its narrower shape and much smaller size, and
the differently-shaped cedeagus of the male, distinguish it.

18. Lobopoda tropicalis. (Tab. XVII. fig. 17.)

Moderately elongate, brownish-piceous, rather shining, somewhat thickly pubescent. Head with scattered
coarsish punctures ; eyes large and approximate in the male; prothorax sparsely and rather coarsely (but
shallowly) punctured, the disc very distinctly canaliculate, and shallowly transversely impressed before
the base, the basal fovee not very deep, the hind angles rectangular; elytra moderately long, with
closely punctured striw, the interstices feebly convex and somewhat coarsely punctured ; beneath sparsely
and rather coarsely punctured, the metasternum in the middle behind closely so in the male; legs and
antenne dark ferruginous, the former thickly clothed (especially on the inner side of the femora and tibie)
with hairs.

3. Anterior tibie simple. The lateral lobes of the last ventral segment long and curved, the apical portion
widened and of a flattened spatulate shape, nearly straight, and clothed with very long hairs, the inner
edge minutely serrate; the central sheath rather broad, gradually narrowing behind, the apex abruptly
truncate. (Fig. 17.)

Length 104 millim.; breadth 3$ millim. (<¢.)

Hab. Panama, Volcan de Chiriqui (Champion).

A single male example. This species is of about the size and shape of L. attenuata ;
but it is readily distinguished by the more sparsely punctured and more distinctly
canaliculate thorax, the simple anterior tibie in the male, &c. The legs are clothed
with more numerous and longer and more bristly hairs than in the allied forms. In
the structure of the cedeagus L. tropicalis departs widely from any other species here
enumerated.

19. Lobopoda femoralis. (Tab. XVII. figg. 18, 18a, 3.)

Rather short, varying in colour from fusco-ferruginous to brownish-piceous, dull, thickly pubescent. Head
rather sparsely but somewhat coarsely punctured; eyes large and subapproximate in the male, much
smaller and widely separated in the female; prothorax somewhat thickly and rather coarsely (though
shallowly) punctured, the disc very distinctly canaliculate, and slightly impressed before the base, the
basal fovez rather shallow, the hind angles rectangular; elytra rather short, comparatively wide towards
the base and somewhat rapidly narrowed behind, with very closely punctured strie, the interstices feebly
convex and moderately coarsely punctured ; beneath sparsely and rather finely punctured, the metasternum
in the middle very closely so in the male; legs testaceous or fusco-testaceous, with the inner apical third
of the femora piceous or black, rarely brownish-piceous with the tibie and tarsi more or less ferruginous ;
antenne slender, testaceous or ferruginous.

3. Anterior tibiee more or less angularly widened on the inner side just before the middle, and between this
and the apex emarginate. The lateral lobes of the last ventral segment very long, curved and angularly
extended on the outer side towards the apex, and then again abruptly curved inwards, the apical portion
broadly triangular, and with its apex parallel with the lobe; the central sheath very broad, somewhat

LOBOPODA. . 399

spoon-shaped, though abruptly narrowing and slightly acuminate behind, the apex a little widened and
bluntly rounded. (Fig. 18 a.)

Length 83-91 millim.; breadth 33-4 millim. (¢ 2.)
Hab. Mexico, Tapachula in Chiapas, Frontera in Tabasco (Hége); Guatemata, San
Isidro, Volcan de Atitlan (Champion) ; Panama, Bugaba, Caldera in Chiriqui (Champion).

Many examples. This species may be known by its dull surface, very slender
antenne in the male, distinctly canaliculate thorax, comparatively short broad form,
dark knees, and the very peculiar structure of the cedeagus. In two examples the
femora and the greater part of the tibiz are dark in colour.

20. Lobopoda chontalensis.

Moderately elongate, rather broad, piceous-black, slightly shining, thickly pubescent. Head with scattered
shallow punctures; eyes () moderately large and rather narrowly separated; prothorax closely and
rather coarsely punctured, the sides slightly sinuate behind, the hind angles subrectangular, the disc
shallowly impressed before the base and obsoletely canaliculate, the basal fovese rather shallow; elytra
broad in front, rapidly narrowing behind, rather deeply striate, the strie to beyond the middle with very
coarse punctures and thence to the apex with finer impressions, the interstices slightly convex and rather
coarsely punctured; beneath sparsely but rather coarsely punctured; legs fusco-ferruginous, the tarsi
lighter ; antenne ferruginous.

Length 10-114 millim.; breadth 32-4 millim. (@.)

Hab. Nicaracua, Chontales (Belt).

Two female examples. ‘his insect resembles the dark-legged form of L. femoralis ;
it differs in being larger and broader, and in having the elytral strie very much more
coarsely punctured and the antenne stouter.

21. Lobopoda simplex. (Tab. XVII. fig. 22.)

Rather short, reddish-brown or brownish-piceous, shining, thickly pubescent. Head with scattered, shallow,
rather coarse punctures; eyes large and approximate in the male, smaller and somewhat widely separated
in the female; prothorax broad, convex, the disc a little flattened before the base, the basal foveze small
and shallow, the surface very shining and rather closely and somewhat coarsely punctured; elytra rather
short, a little rounded at the sides, with closely and rather coarsely punctured striz, the interstices feebly
convex and finely punctured; beneath sparsely but rather coarsely punctured; legs and antenne
ferruginous.

¢. Anterior tibie sinuous on the inner side. The lateral lobes of the last ventral segment long and slender,
very narrow, slightly curved inwards, and a little thickened at the apex; the central sheath narrow,
gradually narrowing behind, the apex bluntly rounded. (Fig. 22.)

Length 9 millim.; breadth 3} millim. (d 9.)

Hab. Britisn Honpuras, Belize (Blancaneauz).

Three examples. The short form, the convex, non-canaliculate, and very shining
thorax, and the simple structure of the cedeagus distinguish this species from others of
the genus; L. simplex is perhaps nearest allied to ZL. tropicalis. A single female
example from Yucatan (Gawmer) is perhaps referable to this species; it differs from
the others in having the thorax more sparsely punctured and distinctly canaliculate,
and in the elytra being less convex.

400 HETEROMERA.

22. Lobopoda opaca. (Tab. XVII. figg. 23, 23a, ¢ .)

Moderately elongate, broad, dull black, thickly clothed with cinereous pubescence. Head coarsely and irre-
gularly punctured; eyes moderately large, separated by a narrow space in the male; prothorax widest at
the base, slightly sinuate at the sides behind, somewhat coarsely, irregularly, and rather closely punctured,
the disc obsoletely canaliculate, and broadly longitudinally impressed before the base, the basal fovese deep ;
elytra broad towards the base, gradually narrowing behind, with rows of rather coarse, oblong, not very
closely placed impressions, the interstices flat throughout and finely punctured; beneath sparsely and
somewhat coarsely punctured, the middle of the metasternum behind more closely so in the male; legs
piceous, the tarsi fusco-ferruginous; antenne fusco-ferruginous.

g. Anterior tibie slightly widened on the inner side before the middle. The lateral lobes of the last ventral
segment short and broad, curved, and spoon-shaped, the lower edge clothed with short hairs; the
central sheath acuminate, the apical portion horizontal, and setose beneath, the apex slightly thickened.
(Fig. 23 a.)

Length 113 millim.; breadth 4} millim. (<¢.)

Hab. Panama, Volcan de Chiriqui (Champion).

One male example. This species possesses a different facies from any other of the
genus here enumerated, except the following, from which it is at once separated by
the diverse sculpture of the elytra. The elytra have merely rows of oblong punctures
placed upon almost obsolete striz, and the interstices are flat throughout.

23. Lobopoda opacicollis.

Moderately elongate, rather broad, dull brownish-black, the elytra slightly shining, thickly clothed with greyish-
fulvous pubescence. Head somewhat coarsely and closely punctured, the punctures shallow; eyes (2)
moderately large and rather widely separated; prothorax with the sides slightly sinuate or almost straight
behind, the hind angles varying in shape from obtusely rectangular to subacute, the disc broadly longi-
tudinally impressed in the middle behind and obsoletely canaliculate, the basal fovese deep, the surface .
opaque, very irregularly, somewhat coarsely (but shallowly), and rather closely punctured; elytra more
shining than the prothorax, moderately broad, narrowing very little in their basal half, with finely and
closely punctured, narrow, rather deeply impressed striz, the interstices feebly convex and finely punc-

tured; beneath sparsely and finely punctured; legs and antennee fusco-ferruginous, the femora and tibie
often darker.

Length 10-113 millim.; breadth 33-4 millim. (9.)

Hab. Mexico, Cordova, Guanajuato (Sallé), Jalapa (Hége); British Honpuras
(Blancaneauz).

Six examples, all females. This species can only be satisfactorily compared with the
preceding ; it has, however, very differently sculptured elytra. Labelled Z. sulcati-

pennis, Dugés, in the Sallé collection—a very inapplicable name, and one that I
cannot adopt,

24, Lobopoda hirta.

Elongate, rather convex, brownish-castaneous, rather dull, thickly pubescent. Head with the vertex very
closely, the epistoma more sparingly and more coarsely, punctured; eyes moderately large, separated by
a narrow space in the male; prothorax convex, broadly and shallowly canaliculate (except in front),
deeply impressed in the middle before the base, the basal fovese very deep, the surface very closely and
shallowly but somewhat coarsely punctured; elytra subparallel anteriorly, gradually narrowing from a
little before the middle, with rows of not very closely placed, oblong, moderately coarse impressions, the

LOBOPODA. AGL

interstices quite flat throughout, and sparsely and finely punctured ; beneath sparsely and rather coarsely
punctured, the middle of the metasternum more closely and finely so in the male; legs and antenne
reddish-ferruginous, the latter comparatively stout.

g. Anterior tibie subtriangularly widened on the inner side before the middle. The lateral lobes of the last
ventral segment short and broad, curved, and spoon-shaped; the central sheath acuminate, the apical
portion horizontal, and setose beneath, the apex slightly thickened. (Tab. XVII. fig. 19.)

Length 113 millim.; breadth 3? millim. (¢.)

Hab. Nicaragua, Chontales (Janson).

A single male example. In the sculpture of the elytra this species resembles
LL. opaca; it differs, however, from that insect in its more convex and more closely
punctured thorax, narrower and more parallel shape, and stouter legs. The cedeagus
is formed almost exactly as in Z. opaca.

25. Lobopoda sculpturata. (Tab. XVII. fig. 20, ¢.)

Moderately elongate, subfusiform, slightly shining, thickly pubescent, brownish-piceous, the elytra in greater
part reddish-brown, the base and suture narrowly, and the lateral margins more broadly (especially
behind), for three-fourths of their length, remaining of the ground-colour. Head sparsely punctured ;
eyes large and approximate in the male, smaller and narrowly separated in the female; prothorax
convex, a8 wide at the base as the elytra, the sides a little sinuate behind, the hind angles subacute, the
disc obsoletely canaliculate, and slightly impressed in the middle before the base, the basal foves: shallow,
the surface thickly covered with coarse, raised, irregular points, immediately behind each of which is
placed a shallow setiferous puncture; elytra gradually narrowing from the base, the sides forming
almost a continuous outline with the prothorax (not abruptly narrowed as usual at the shoulders), deeply
striate, the striee with moderately coarse punctures, the interstices feebly convex on the basal half of the
disc, strongly so at the sides and apex, and with a few widely scattered impressions; beneath sparsely
and finely punctured, the middle of the metasternum closely so in the male; legs and antenn ferrugi-
nous, the femora darker.

g. Anterior tibiz: angularly widened on the inner side before the middle.

Length 6-61 millim.; breadth 2;-23 milim. (¢ @.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Three examples. ‘The very peculiar sculpture of the thorax and the reddish-brown
disc of each elytron are characters by which this small species may be easily identified.
The unique male is rather immature, and I am not able to examine its cedeagus.

26. Lobopoda levicollis. (Tab. XVII. tigg. 21, 214, 4, 3.)

Moderately elongate, fusiform, dark reddish-brown, brownish-piceous, or black, shining, thickly pubescent.
Head with rather coarse scattered punctures; eyes large and approximate in the male, more distant in
the female; prothorax convex, the sides almost straight behind, and strongly rounded in front, the hind
angles rectangular, the dise obsoletely canaliculate, and shallowly transversely impressed before the base,
the basal fove rather shallow, the surface moderately finely and somewhat closely punctured; elytra
very little wider than the prothorax at the base (the sides forming almost a continuous line with the
prothorax), narrowing gradually from a little below the base, with moderately deep and closely punctured
striw, the interstices feebly convex and rather coarsely punctured, the apices rounded in both sexes;
beneath sparsely but coarsely punctured; legs and antenne more or less ferruginous, the femora usually
darker.

¢. Anterior tibie sinuous within. The lateral lebes of the last ventral segment very long and narrow, much
recurved beneath and hook-like (the recurved portion extending back about one third of the length of the

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 1, August 1888. 3 FF

402 HETEROMERA.

lobe), and with an abrupt notch on the inner side above; the central sheath broad, narrowed, and
acuminate towards the apex, the apical portion strongly recurved and hooked beneath. (Figg. 214, 6.)
Length 83-11} millim.; breadth 33-4 millim. (3 9.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hége), N. Yucatan (Gaumer).

A large number of examples. This species is distinguished by its fusiform shape,
anteriorly narrowed and convex thorax, and by the very peculiar structure of the
‘ eedeagus of the male; in the last-named character it departs widely from the other
Lobopode here enumerated. Labelled Z. levicollis, Chevr., in the Sallé collection.

The North-American Allecula erythrocnemis (Germ.) is an ally of this species.

27. Lobopoda proxima. (Tab. XVIII. fig. 1.)

Moderately elongate, subfusiform, brownish-piceous or black, slightly shining. Head very sparsely punctured ;
eyes very large and approximate in the male, more distant in the female; prothorax transversely convex,
comparatively broad, the sides straight (or a little narrowing) behind, the hind angles subrectangular or
obtuse, the disc obsoletely canaliculate, the basal fovese very shallow, the surface finely and very sparsely
punctured; elytra with closely punctured rather deep strie, the interstices feebly convex at the sides and
apex, flat on the disc, and finely and very sparsely punctured; beneath sparsely and somewhat coarsely
punctured ; legs brownish-piceous or ferruginous, the tarsi and antenne ferruginous.

3g. Anterior tibie sinuous within. The lateral lobes of the last ventral segment long, parallel to the middle,
and then inwardly curved, the apices very bluntly rounded off, and furnished with short teeth within ;
the central sheath narrowing towards the apex, the latter slightly rounded. (Fig. 1.)

Length 83-94 millim.; breadth 3-33 millim. (¢ @.)

flab. Mexico, Temax in N. Yucatan (Gaumer).

Five examples, two of which are males. This species closely resembles ZL. levicollis ;
but differs in the thorax being relatively broader and more transverse, in the rather less
elongate shape, and in the wholly different structure of the cdeagus. From ZL. oblonga
(which it more nearly resembles in the last-named character) it is distinguished by the
much sparser punctuation of the head and thorax. In the female examples the hind
angles of the thorax are more obtuse than in the males.

28. Lobopoda jalapensis. (Tab. XVIII. fig. 2.)

Moderately elongate, subfusiform, piceous-black, not very shining, thickly pubescent. Head with rather coarse
scattered punctures ; eyes moderately large and subapproximate in the male; prothorax convex in front,
the sides rather strongly narrowed and rounded anteriorly and almost straight behind, the hind angles
rectangular, the disc very obsoletely canaliculate, and a little flattened behind, the basal foves: small and
shallow, the surface closely, subequally, and moderately coarsely punctured ; elytra distinctly wider than
the prothorax at the base, narrowing gradually from a little below the shoulders, with moderately deep
and closely punctured striz, the interstices feebly convex, and rather coarsely punctured; beneath coarsely
and somewhat closely punctured, the middle of the metasternum more closely so in the male; legs and
antennee dark ferruginous, the femora darker.

g. Anterior tibiee sinuous within, The lateral lobes of the last ventral segment rather short and broad,
deeply notched within on the lower side about the middle, behind which the sides are angularly
extended inwards, the apices broadly rounded; the central sheath rather narrow, acuminate towards
the end, the apical portion setose beneath and slightly recurved, the apex a little thickened. (Fig. 2.)

Length 10-104 millim.; breadth 33-4 millim. (¢.)

Hab. Mexico, Jalapa (fHége).

LOBOPODA. 403

Three male examples. This species is allied to Z. levicollis, from which it differs in
its much more closely punctured thorax, and the very differently shaped cedeagus.

29. Lobopoda parvula. (Tab. XVIII. fig. 3.)

Moderately elongate, subfusiform, piceous-black, rather dull, thickly pubescent. Head with scattered coarsish
punctures; eyes large and subapproximate in the male, narrowly separated in the female; prothorax
convex in front, the sides straight behind, the hind angles rectangular, the disc obsoletely canaliculate,
and shallowly impressed before the base, the basal foves moderately deep, the surface moderately closely
and somewhat coarsely punctured; elytra gradually narrowing from a little below the base, with closely
punctured shallow strie, the interstices feebly convex, almost flat on the basal half of the disc, and
shallowly and finely punctured; beneath coarsely and sparsely punctured, more closely so on the hinder
part of the metasternum in the male; legs and antenne brownish-piceous, the tarsi lighter.

3. Anterior tibis slightly widened on the inner side before the middle. The lateral lobes of the last
ventral segment rather short, curved, and somewhat thickened at the apex; the central sheath narrow and
neuptnate. (Fig. 3.)

Length 77-8 millim.; breadth 24-3 millim. (¢ @.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hoge).

Five examples. ZL. parvula in its general shape resembles L. levicollis; but differs
in its much smaller size, duller surface, more lightly impressed and more finely punc-
tured elytral strie, flatter and more finely punctured interstices, and very differently
shaped cedeagus.

30. Lobopoda minuta. (Tab. XVIII. fig. 4.)

Moderately elongate, rather convex, brownish-piceous, shining, sparsely pubescent. Head with scattered
punctures; eyes large and subapproximate in the male; prothorax convex, coarsely and rather closely
punctured, the disc shallowly transversely impressed before the base, the basal foveew rather deep and
extending forwards, the hind angles subacute; elytra narrowing from a little below the base, with
coarsely punctured rather deep striz, the interstices slightly convex and sparsely but comparatively
coarsely punctured; beneath somewhat coarsely and rather closely punctured; legs and antenne fusco-
ferruginous, the femora darker.

g. Anterior tibie angularly widened on the inner side before the middle. The lateral lobes of the last ventral
segment rather short, and curved inwards, the apices blunt, the inner edges finely serrate ; the central
sheath narrow and acuminate. (Tig. 4.)

Length 6 millim.; breadth 2; millim. (¢.)

Hab. Panama, Volcan de Chiriqui (Champion).

One male example. This is one of the smallest known species of the genus; it
resembles L. apicalis, L. atrata, &c., in its general shape. ‘The four basal joints of the
anterior tarsi are only very feebly lobed beneath.

31. Lobopoda tenuicornis. (Tab. XVIII. figg. 5, 5a, ¢.)

Moderately elongate, brownish-piceous, rather dull, the elytra slightly shining, thickly pubescent. Head
comparatively broad, with scattered rather coarse punctures; eyes very large and approximate in the
male, much smaller and widely separated in the female; antenne ferruginous, long, very slender, joints
4-11 each widest at the middle; prothorax widest at the base, the sides somewhat rapidly converging
from the acute hind angles, the disc almost unimpressed, the basal fovez very shallow, the surface very
shallowly, rather closely, and somewhat finely punctured, the punctures on the disc exceedingly shallow

3FF 2

404 HETEROMERA.

and each surrounded by a slightly raised ring, the basal margin with a complete row of closely placed
punctures; elytra moderately long, a little rounded at the sides, somewhat rapidly narrowing from about
(or a little before) the middle, with deep and very closely punctured striz, the interstices convex, flatter on
the basal half of the disc, and sparsely but coarsely punctured ; beneath brownish-piceous, the ventral
surface with scattered rather coarse punctures and wrinkles, the metasternum closely and finely punctured,
more coarsely and more sparsely so at the sides, and longitudinally impressed in the middle ; legs long and
slender, fusco-ferruginous, the femora piceous; penultimate joint of the four anterior tarsi very narrowly
lobed beneath.

¢. Anterior tibie simply curved, the inner edge not widened. The lateral lobes of the last ventral segment
moderately long, inwardly curved, the apices blunt and bent inwards, the inner edges denticulate ; the
central sheath rather broad, acuminate, the apex bent a little upwards and feebly setose beneath. (Fig. 5a.)

Length 73-9 millim.; breadth 23-31 millim. (d 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Numerous examples. This insect has a different facies from any other of the genus
known to me; in the very slender antenne it approaches L. femoralis, and in the
thoracic sculpture Z. sculpturata. The head is comparatively broad; the sculpture of
the thorax consists of rather fine punctures, each puncture on the disc being surrounded
by a slightly raised ring; the anterior tibiae in the male are simply curved. The
penultimate joint of the anterior and intermediate tarsi is very narrowly lobed beneath
in this species; and the antenne have their joints 4-11 widest at the middle.

** Upper surface golden-green or eneous.
Anterior tarsi in the male with the four basal joints lobed beneath.

32. Lobopoda viridis. (Tab. XVIII. figg. 6, 6a, d, 3.)

Elongate, bright greenish-eneous or golden-green, somewhat thickly clothed with ashy pubescence. Head
sparsely punctured; eyes very large and approximate in the male, smaller and narrowly separated in the
female ; prothorax very sparsely and rather finely punctured, the sides a little sinuate behind, the hind
angles obtusely rectangular, the disc very distinctly canaliculate, and somewhat deeply transversely
impressed before the base, the basal impression extending to the deep fovee; elytra long, rather broad,
gradually narrowed from a little below the base, with rows of rather distantly placed impressions which
gradually become coarser and more and more elongate posteriorly and towards the apex are here and
there confluent, the interstices almost flat and very sparsely but rather coarsely punctured; beneath dark
bronze, very sparsely and rather finely punctured, the fifth ventral segment shallowly impressed in the
middle in both sexes; legs dark bronze, the tarsi lighter ; antenne fusco-ferruginous.

g. Anterior tibie triangularly widened on the inner side a little beyond the middle; anterior femora towards
the base a little thickened and very bluntly toothed on the inner side, the inner edge slightly emarginate
and obsoletely denticulate. The lateral lobes of the last ventral segment rather short and broad, deeply
and abruptly notched on the lower side externally, the apical portions bifurcate and with their lower
branch the broadest and clothed with a few long fine hairs; the central sheath rather broad, gradually
narrowing, more sharply so towards the apex, the apical portion setose on each side. (Figg. 6a, b.)

Length 11-15 millim.; breadth 4-5 millim. (¢ 2.)

Hab. Mexico, Cordova (Sallé), Misantla (Hége); Nicaracua, Chontales (Belt).
Seven examples. his species will be readily identified from the description; it

cannot be confounded with any other of the genus here described. JZ. viridis varies
very considerably in size.

LOBOPODA. 405

33. Lobopoda foveata. (Tab. XVIII. figg. 7, 7,3.)

Moderately elongate, rather broad, eneous, sometimes with a slight greenish tint, thickly pubescent. Head closely
and rather coarsely punctured ; eyes large and narrowly separated in the male, smaller and more widely
separated in the female; prothorax coarsely and rather closely punctured, the disc obsoletely canaliculate
(except in front), and deeply impressed in the middle before the base, the basal fovese very deep, the hind
angles subrectangular; elytra moderately long, rather broad, gradually narrowing from a little below the
base, with rows of comparatively coarse not very closely placed punctures placed upon almost obsolete
strie, the strie deeper towards the apex, the interstices almost flat, a little convex behind, and very
sparsely but rather coarsely punctured; beneath dark bronze, sparsely but rather coarsely punctured, the
fourth and fifth ventral segments smoother ; legs and antenne fusco-ferruginous, the femora darker.

dg. Anterior tibie slightly widened on the inner side before the middle. The lateral lobes of the last ventral
segment short and broad, strongly curved, deeply concave and spoon-shaped, the apices broadly rounded ;
the central sheath narrow, acuminate, the apical portion setose beneath and recurved, the apex blunt.
(Fig. 7 a).

Length 94-114 millim.; breadth 3-4 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui, David, La Caldera, Tolé (Champion).

Eight examples. Comparatively much shorter than L. viridis, the eyes smaller, the
thorax much more closely and more coarsely punctured, the elytra with rows of punc-
tures placed upon exceedingly shallow striz, the upper surface not quite so shining,
&c. The cedeagus is of a very different structure; it rather closely resembles that of

LL. opaca.

34. Lobopoda eneotincta.

Elongate, rather broad, eneous or greenish seneous, thickly pubescent. Head with scattered coarse punctures ;
eyes (2) very large and narrowly separated; prothorax rather finely and not very closely punctured,
the dise obsoletely canaliculate, and shallowly impressed in the middle before the base, the basal
fovere rather deep; elytra long, somewhat rapidly narrowing from a little below the base, with closely
punctured striw, the strise deeper towards the apex, the interstices almost flat, feebly convex behind, and
sparsely but rather coarsely punctured; beneath dark bronze, sparsely but rather coarsely punctured ;
legs and antennze fusco-ferruginous, the femora darker.

Length 11-113 millim.; breadth 35-4 millim. ( 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

Two female examples. This insect closely resembles LZ. foveata ; it differs as follows:
—The head is not so closely punctured; the eyes (in the female) are much larger and
more narrowly separated; the thorax is more finely punctured and has shallower
basal impressions; and the elytra are longer, and have closely punctured striz.

35. Lobopoda pilosa.

Moderately elongate, eneous, not very shining, thickly pubescent. Head with scattered coarse punctures ;
eyes () large and rather narrowly separated ; prothorax finely and rather sparsely punctured, the disc
canaliculate, and depressed in the middle before the base, the basal fovere moderately deep; elytra mode-
rately long, very gradually narrowing posteriorly, about as wide at the middle as at the base, and rather
broad behind, with finely and closely punctured fine shallow strie, the strie a little deeper towards the
apex, the interstices almost flat, feebly convex behind, and rather closely punctured; beneath brownish-
bronze, sparsely and rather finely punctured; legs and antenne fusco-ferruginous.

Length 94 millim.; breadth 3-3; millim. (9.)

406 HETEROMERA.

Hab. Mexico, Tapachula in Chiapas (Hége); GUATEMALA, Coatepeque 1300 feet
(Champion).

Two female examples. This species is closely allied to JZ. eneotineta, but is
separated by the elytra being shorter and more ovate in shape and with shallower sg
more finely punctured strie; and the thorax is more finely punctured and more =
tinctly canaliculate. The two known localities for Z. pilosa are both on the Pacific
slope, and are not very far distant from each other.

b. Body glabrous.

Anterior tarsi in the male with the four basal joints lobed beneath ; the four basal joints
of the intermediate tarsi (in those species of which the males are known) also more
or less lobed beneath in this sea.

* Upper surface bright metallic green or eneous.

36. Lobopoda nitens. (Tab. XVIII. fig. 8, 2.)

Elongate, rather convex, bright metallic green with a slight brassy tint, glabrous. Head exceedingly finely
and remotely punctured; eyes (@ ) moderately large, rather narrowly separated; prothorax convex, the
sides deeply sinuate-emarginate behind the middle and the lateral margins at this part impressed within,
the hind angles rather obtuse, the disc rather deeply transversely impressed in the middle before the base,
the basal foveze very deep, the surface very minutely and remotely punctured, the median lobe at the base
rather deeply emarginate; scutellum convex; elytra very long, very gradually narrowing from a little
below the base, the apices somewhat produced and slightly pointed, with rows of moderately coarse,
oblong, rather distantly placed impressions, the impressions becoming finer towards the apex, the inter-
stices flat throughout and impunctate; beneath dark bronze with a cupreous tint, almost impunctate; legs
and antenne dark bronze, the former very sparsely pubescent.

Length 113 millim.; breadth 4 millim. (¢.)

Hab. Costa Rica, R. Sucio (Rogers).

One female example. Allied undescribed forms from Colombia and Brazil exist in
collections. ZL. cwrulescens, Kirsch, from Bogota, somewhat approaches L. nitens, but
differs in several important particulars.

37. Lobopoda irazuensis. (Tab. XVIII. figg. 9, 9a, 3.)

Moderately elongate, subparallel, eneous with a slight golden tint, shining, glabrous. Head with very fine
scattered punctures; eyes moderately large and rather widely separated in the male, smaller and more
distant in the female; prothorax convex, the sides almost straight (though a little sinuate) behind, the
hind angles subacute, the disc shallowly transversely impressed before the base, the basal foves deep, the
surface very minutely and sparsely punctured, more closely and more distinctly so on the basal half of the
disc ; elytra subparallel in their basal half, the suture longitudinally depressed below the scutellum, with
finely and closely punctured very fine shallow strie, the interstices flat and impunctate; beneath dark
bronze, the ventral surface remotely and minutely punctured and with shallow longitudinal wrinkles, the
metasternum longitudinally impressed and with scattered punctures which are very coarse at the sides and
fine in the middle; legs sparsely pubescent, dark bronze, the tarsi lighter ; antenne fusco-ferruginous.

LOBOPODA. A407

3. Anterior tibie sinuous, very distinctly widened on the inner side about the middle; anterior and inter-
mediate tarsi with the four basal joints lobed beneath. Metasternal depression deep, rather closely
punctured within. Second ventral segment carinate down the middle, the third segment very feebly so
towards the base, the fifth segment unimpressed. The lateral lobes of the last ventral segment rather
short, wide at the base, and narrowing and inwardly curved outwardly, the apices blunt, the inner edges
denticulate; the central sheath rather broad, the apical portion somewhat spoon-shaped, the apex slightly
widened but narrowing and bent a little downwards in front. (Fig. 9 a.)

Length 94 millim.; breadth 33-33 millim. (¢ 9.)

Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Rogers).

T'wo examples. This species is distinguished by its subparallel shape, eneous surface,
very finely and closely punctured elytral striae, flat interstices, and remarkable sexual
characters; in this last respect it approaches Z. cariniventris.

L. wrazuensis is not very
nearly allied to any other species of the genus known to me.

_ 38. Lobopoda nitida.

Rather short, somewhat convex, bright eneous, glabrous. Head with scattered coarsish punctures ; eyes (9)
moderately large, rather widely separated ; prothorax convex, the sides straight behind, the hind angles
rectangular, the disc finely canaliculate behind, and a little flattened in the middle before the base, the
basal fovere small but deep, the surface finely and moderately closely punctured ; elytra rather short, a
little rounded at the sides, gradually narrowing from a little before the middle, with narrow but deep
striz, the strie with oblong, rather distantly placed, coarsish punctures which (like the stris) become
shallower towards the apex, the interstices flat and almost impunctate; beneath brownish-piceous, the
metasternum coarsely and rather closely punctured all over, the ventral surface smooth and almost

impunctate ; legs very sparsely pilose, ferruginous, the femora darker; antenna ferruginous.
Length 7 millim.; breadth 22 millim. ( 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

One female example. JZ. nitida is intermediate between L. viridipennis and L. enei-
pennis, but abundantly distinct from either; from the former it is distinguished by its
eeneous thorax, deeper elytral strie, shorter form, &c., and from the latter by its bright
geneous upper surface, flat elytral interstices, &c.

** Upper surface brownish-black, the elytra more or less eneous ; form oblong.

39. Lobopoda viridipennis. (Tab. XVIII. fige. 10, 10a, ¢.)

Moderately elongate, rather broad and convex, brownish-black, the elytra golden-green, shining, glabrous.
Head finely and remotely punctured; eyes large and subapproximate in the male, somewhat widely sepa-
rated in the female; prothorax convex, the sides sinuate behind, the hind angles obtusely rectangular,
the disc very shallowly transversely impressed in the middle before the base, the surface exceedingly
finely and somewhat remotely punctured ; elytra rather broad, gradually narrowing from a little below
the base, with very fine lightly impressed striz, the striz with fine oblong impressions which (like the
strise) become still finer towards the apex, the interstices broad and flat throughout and each with a row of
exceedingly minute punctures down the middle ; beneath brownish-black, almost impunctate, the middle of
the metasternum and the fifth ventral segment only with a few fine scattered punctures, the metasternum
longitudinally grooved in the centre; legs sparsely pilose, brownish-black, the tarsi lighter; antenne
piceous or fusco-ferruginous,

408 HETEROMERA.

side before the middle. The lateral lobes of the last
ly curved, rounded at the apex; the central sheath
e extreme apex abruptly widening

3. Anterior tibiee subangularly widened on the inner
ventral segment moderately long, thin, and inward
rather broad, the apical portion horizontal and narrowing behind, th
out on each side and almost truncate. (Fig. 10 a.)

Length 82-9 millim.; breadth 3-33 millim. (d 2 )

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Four examples. ZL. viridipennis, as will be seen from the description, is not very
nearly allied to any other species noticed here ; it comes nearest to L. obsoleta.
A closely allied undescribed form, from Chanchamayo, Peru, is contained in Mr. F.

Bates’s collection.

40. Lobopoda eneipennis. (Tab. XVIII. figg. 11, 11a.)

Moderately elongate, rather convex, brownish-black, the elytra wneous in tint, slightly shining, glabrous.
Head with scattered fine punctures; eyes very large and approximate in the male, smaller and rather
widely separated in the female; prothorax convex, the sides straight or a little sinuate behind, the hind
angles subrectangular, the disc very shallowly transversely impressed in the middle before the base, the
basal fove rather deep, the surface finely and somewhat closely punctured; elytra moderately long,
a little rounded at the sides, somewhat rapidly narrowing from about the basal third, with rather
coarsely and not very closely punctured deep stria, the interstices moderately convex throughout and
impunctate; beneath brownish-piceous, the metasternum coarsely punctured, the ventral surface with
exceedingly fine scattered punctures and very shallow longitudinal wrinkles; legs sparsely pilose, fusco-
ferruginous, the femora darker; antenne ferruginous.

3. Anterior tibia subangularly widened on the inner side before the middle. The lateral lobes of the last
ventral segment narrow but rather stout, moderately long, strongly curved, the apices blunt; the central
sheath acuminate, the apex a little widened and bluntly rounded. (Figg. il, 11.)

Length 71-84 millim. ; breadth 2?-3 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Four examples. ZL. eneipennis closely resembles L. obsoleta; it differs in the thorax
being more convex, and in the elytra being of a more eneous tint, with deeper and less
finely punctured strie, and more convex interstices.

*** Upper surface brownish-black, the elytra sometimes lighter in tint ; form oblong.

41. Lobopoba cariniventris.

Moderately elongate, rather convex, brownish-black, the elytra dark castaneous, moderately shining, glabrous.
Head with a few very fine widely scattered punctures; eyes moderately large and narrowly separated in
the male, much smaller and widely separated in the female ; prothorax convex, the sides almost straight or a
little sinuate behind, the hind angles rectangular or subacute, the disc slightly transversely depressed at
the base between the moderately deep foves, the surface very finely and very sparsely punctured (in one
example rather more closely so); elytra about as wide at the middle as at the base, gradually narrowed
behind, with deep and moderately coarsely punctured striz, the interstices slightly convex and impunctate ;
beneath more shining, the ventral surface almost impunctate but with very shallow longitudinal wrinkles,
the metasternum longitudinally impressed in the middle behind and with coarse scattered punctures all
over; legs sparsely pilose, brownish-piceous, the tarsi ferruginous ; antenne testaceous.

g. Anterior tibiee a little widened on the inner side before the middle; the metasternal depression deep,

LOBOPODA. 409

slightly carinate in the middle, the sides of the depression very closely punctured; ventral segments 1~3
very sharply and strongly carinate down the middle, 5 foveolate in the centre. The lateral lobes of the
last ventral segment rather long and stout, a little curved towards the apex, the apices blunt; the central
sheath compressed, widening outwardly and narrowed a little towards the end, the apical portion

somewhat shovel-shaped, the apex rather broadly truncate and slightly hooked above. (Tab. XVIII.
fig. 12.)

Length 74-8 millim.; breadth 3-37 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui ( Champion).

Five examples. This insect possesses very remarkable sexual characters. It is one

of several allied forms inhabiting Central America.

42. Lobopoda obsoleta. (Tab. XVIII. fig. 13.)

Moderately elongate, blackish-bronze, moderately shining, glabrous. Head finely and rather sparsely punc-

tured; eyes very large and approximate in the male; prothorax a little sinuate at the sides behind, the
hind angles rectangular or subacute, the disc slightly transversely depressed in the middle before the base,
the basal fovex rather deep, the surface finely and rather closely punctured, a narrow longitudinal space
on the disc impunctate; elytra rather rapidly narrowing from about the basal third, with deep finely
punctured striw, the striz still more finely punctured towards the suture, the interstices slightly convex
and impunctate; beneath more shining, the ventral surface almost impunctate but with very shallow
longitudinal wrinkles, the metasternum with a few fine scattered punctures in the middle and some
shallow coarse ones at the sides, the fifth ventral segment unimpressed ; legs sparsely pilose, brownish-
piceous, the tarsi lighter; antenna varying in colour from testaceous to piceo-ferruginous.

g. Anterior tibise angularly widened on the inner side before the middle. The lateral lobes of the last ventral

segment long, thin, and curved, rounded at the apex; the central sheath broad, the apical portion hori-
zontal, somewhat spoon-shaped, and narrowing towards the apex, the extreme apex abruptly widening
out on each side and truncate. (Fig. 13.)

Length 8-83 millim.; breadth 3-3} millim. (<.)

Hab. Muxico, Jalapa (Hoge); Guatsmata, Capetillo, Volcan de Atitlan (Champion).

Three male examples. JL. obsoleta closely resembles LZ. cariniventris; it is, however,

readily separated by the more finely punctured elytral striz (especially noticeable on
the disc), the larger eyes, the much smoother metasternum, the ventral surface in the
male not carinate or impressed, &c., as well as by the differently shaped cedeagus.

43. Lobopoda glabrata. (Tab. XVIII. figg. 14, 14a, ¢.)

Moderately elongate, black or brownish-black, shining, glabrous. Head with scattered fine punctures; eyes

moderately large, narrowly separated in the male, more distant in the female; prothorax convex, sinuate
at the sides behind, the hind angles rectangular or subacute, the disc with a shallow depression at the base
between the deep fovese, the surface exceedingly finely and remotely punctured ; elytra moderately long, very
gradually narrowed from a little below the base, rather more parallel in the female, with finely and somewhat
remotely punctured very deep striz, the interstices convex, very strongly so towards the apex, and
impunctate; beneath brownish-piceous, the ventral surface closely and moderately finely punctured, the
metasternum very much more coarsely and sparsely so, the fifth ventral segment broadly and shallowly
impressed in the middle in both sexes; legs sparsely pilose, brownish-piceous, the tarsi lighter; antenne
piceo-ferruginous.

Anterior tibie subangularly widened on the inner side before the middle. The lateral lobes of the last
ventral segment moderately long, slender, inwardly curved, the apices bent downwards and slightly
hooked ; the central sheath compressed, widening outwards, the apical portion somewhat spoon-shaped,

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 1, October 1888. 3 GG

410 | HETEROMERA.

narrowing and produced towards the apex, and armed with a few short coarse sete beneath, the extreme
apex a little widened and rounded. (Fig. 14a.)
Length 84-10 millim.; breadth 3}-33 millim. (d 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui, La Caldera (Champion).
Three examples. From ZL. obsoleta and L. cariniventris this species may be distin-

guished by its rather larger size, smoother thorax, and the much more deeply striate
elytra, &c.; the apical interstices of the latter are very sharply raised.

44, Lobopoda —— ?
Hab. Costa Rica, Cache (Logers).

A single male example of a species no doubt belonging to this genus, and perfectly
distinct from any other here enumerated; the unique individual is without head. The
following is a brief description :—

Elongate, narrow, subparallel, sparsely pubescent, dark bronze, shining; prothorax sparsely but somewhat
coarsely punctured, the sides almost straight behind, the disc shallowly canaliculate; elytra subparallel
in their basal half, with closely and rather coarsely punctured striz, the striz deep towards the apex, the
interstices feebly convex and very sparsely punctured; beneath with scattered coarse punctures, the
metasternum very coarsely punctured at the sides and closely and more finely so in the middle.

¢. Anterior femora incrassate, the anterior tibiae widened on the inner side before the middle; the lateral
lobes of the last ventral segment broad, long, and curved, spoon-shaped, broadly rounded at the apex ;
the central sheath gradually narrowing behind, and rounded at the apex.

Length 11 millim.; breadth 33 millim. (<.)

TEMNES.

Last joint of the labial palpi broad, triangular ; last joint of the maxillary palpi very stout, broadly triangular,
its apical side longer than the outer; mandibles bifid, very deeply cleft ; labrum very prominent, rather
broader than the epistoma ; eyes moderately large, widely separated ; antenne rather short, moderately
slender, subfiliform, the intermediate joints the widest, joint 3 about four times as long as 2, and longer and
narrower than 4, joints 4-11 gradually decreasing in length ; prothorax transverse, subquadrate, rather
convex, the sides feebly margined, the margins not visible from above; elytra much wider than the pro-
thorax ; intercoxal process narrowly triangular ; anterior and intermediate tarsi with the third and fourth
joints strongly and equally, and the posterior tarsi with the penultimate joint, lobed beneath ; first joint
of the posterior tarsi long, as long as the following three joints united; fifth ventral segment in the male
abnormal; prosternum abruptly declivous behind; body oblong ovate, hirsute.

The single species included in this genus has much the facies of certain forms of
Lystronychus or Xystropus ; it is, however, at once separated by the very deeply cleft
mandibles, broadly lobed tarsi, and other particulars noticed above.

T. ceruleus has
very remarkable male characters.

1. Temnes ceruleus. (Tab. XVIII. figg. 15, 3; 15a, mandible.)

Oblong ovate, rather convex, bright metallic cxruleous with a violaceous tinge, thickly clothed with long
bristly hairs. Head coarsely and rather sparsely punctured; prothorax convex, transverse, the sides
rounded in front and straight from before the middle to the base, the hind angles rectangular, the basal

foves small and very short (in great part hidden by the convexity of the surface), the disc unimpressed

TEMNES.—ALLECULA. 41]

the surface coarsely, equally, and rather closely punctured; scutellum rather large, subtriangular, coarsely
punctured ; elytra moderately long, rather strongly impressed on each side at the base within the broadly
rounded humeri, subparallel in their basal half and thence rounded and narrowing to the apex, with rows
of rather coarse and somewhat closely placed punctures which become coarser towards the sides and finer
towards the apex, the interstices flat and each with a median row of punctures which upon the disc are
almost as coarse as those of the striw; beneath sparsely pubescent, ceruleous with bronzy tints, the fifth
ventral segment fusco-testaceous; the metasternum longitudinally impressed in the middle, very sparsely
and finely punctured, and with coarse impressions at the sides, the ventral surface finely and more closely
punctured, the fifth ventral segment with coarse scattered impressions in the middle; legs and antenne
ceruleous, thickly clothed with bristly hairs.

¢. Anterior tibie sinuous within. Fifth ventral segment flattened, almost transparent, very long and
projecting, the sides subparallel and visible from above, the apical angles rounded, the apex broad and
emarginate, the base deeply transversely impressed in the middle and articulated to the preceding
segment by a broad membranous space; apical margin of the fourth segment sinuate-emarginate and a
little thickened. The lateral lobes of the last ventral segment very broad, long, and curved, and some-
what spoon-shaped, and broadly rounded and a little thickened at the apex.

Length 63 millim.; breadth 23 millim. (¢.)

Hab. Panama, Bugaba 1000 feet (Champion).
A single male example.

ALLECULA.
Allecula, Fabricius, Syst. Eleuth. ii. p. 21 (1801) ; Lacordaire, Gen. Col. v. p. 502 (1859).
Dietopsis, Solier, Ann. Soc. Ent. Fr. iv. p. 236 (1835), and in Gay’s Historia fisica y polit. de Chile,
Zool. v. p. 248 (1851).

A large number of species have been referred to this genus, chiefly from the tropical
regions of the Old and New Worlds. Eleven species only from Central America are
here included in it, the numerous allied forms being referred to other genera. Alle-
cula at present contains a very heterogeneous assemblage of species from all parts of
the world ; and, when the numerous forms existing in collections are all described, will
doubtless have to be extensively divided. The three North-American species referred to
it belong to Lobopoda as here understood. In the Central-American species the anterior
and intermediate tarsi have the third and fourth joints, and the posterior tarsi the
penultimate joint, more or less lobed (very broadly in A. castaneipennis) beneath ; in the
males of 4. ferox, A. gawmeri, and A. pilipes the first and second joints of the anterior
tarsi are also lobed. In the male of A. feror the lateral lobes of the last ventral
segment are greatly developed and each divided into two parts (one above the other),
and in the female the fifth ventral segment exhibits a peculiar modification, the species
thus differing in a remarkable way from the allied forms.

In A. belti and A. pilipes the mandibles are truncate at the apex, and in A. ferox they
are also broad and subtruncate, though feebly notched; but on this character alone it
is not advisable to separate these species, connected as they are by intermediate forms.
In all the species here included in the genus the antenne are very long and more or less
filiform in both sexes ; in one or two, however, joints 4-10 are each a little dilated at
their inner apical angle. A. depressa and the following three species differ from the

3GG 2

412 HETEROMERA.

others in their more depressed form, faint sculpture, flat elytral interstices, comparative
small and transversely convex thorax, and feebly lobed tarsi; but I am unable
satisfactorily to separate them from Allecula.

1. Tarsi broadly lobed beneath ; form oblong ovate ; elytra rather deeply
punctate-striate or with strie of coarse punctures.

1. Allecula castaneipennis, (Tab. XVIII. fig. 16, 2.)

Moderately elongate, brownish-piceous, the elytra more or less castaneous, rather dull, almost glabrous. Head
very closely and moderately finely punctured; mandibles slender, deeply cleft; antenne (2) slender,
ferruginous or fusco-ferruginous ; prothorax narrow, subcylindrical, nearly as long as broad, the sides
almost straight from the middle to the base and gradually narrowing in front, the hind angles obtusely
rectangular, the basal fovese small but rather deep, the surface very closely and coarsely punctured ;
scutellum very finely and sparsely punctured ; elytra long, much wider than the prothorax, a little rounded
at the sides but almost parallel in their basal half, with somewhat coarsely and closely punctured rather
deep strie, the interstices convex, flatter on the basal half of the disc, and with widely scattered minute
punctures; beneath more shining, sparsely and somewhat finely, the sides of the metasternum and the
flanks of the prothorax very coarsely, punctured, the sides of the ventral segments exceedingly closely and —
minutely punctured and very finely pubescent; legs fusco-ferruginous, thickly pubescent, the penultimate
joint of the tarsi very broadly lobed beneath.

Length 10-123 millim.; breadth 3-4 millim. ( 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).—CoLomB1a, Bogota (coll.
F. Bates); Amazons, Paré (H. W. Bates).

Three female examples. This widely distributed insect has the penultimate joint of
the tarsi very broadly lobed beneath, and is further distinguished by its coarsely and
closely punctured, narrow, subcylindrical thorax, castaneous elytra, almost glabrous
body, and other characters mentioned above. A. castaneipennis is allied to various
undescribed Tropical-American species.

2. Allecula rugicollis. (Tab. XVIII. figg. 17, 17,6.)

Moderately elongate, dull brownish-piceous, the elytra usually lighter in tint, thickly clothed with short pubes-
cence. Head very closely and rugulosely punctured; mandibles somewhat deeply cleft; antenne rather
slender, brownish-piceous ; prothorax not much broader than long, very feebly convex, the sides a little
rounded, widest at the middle, and almost straight or slightly narrowed behind, the basal foveze obsolete,
the surface unimpressed, and very closely, uniformly, and rugulosely punctured ; scutellum very closely
punctured ; elytra moderately long, with rather finely punctured strie, the punctures very closely packed,
the interstices moderately convex, and very closely, finely, and subasperately punctured, the apices rounded
in both sexes; beneath more shining, very closely and somewhat coarsely punctured, the sides of the
metasternum and the flanks of the prothorax very coarsely so ; legs brownish-piceous.

g. Anterior tibiz sinuous within. The lateral lobes of the last ventral segment very broadly spoon-shaped,

rounded at the apex, shallowly emarginate within towards the base, and roughened; the central sheath
acuminate. (Fig. 17a.) ,

Length 10-103 millim.; breadth 33-4 millim. (¢ @.)
Hab. Mexico, Acapulco (Hége).

Six examples. ‘This species is distinguished by its dull surface, rugulose head and
thorax, slender antenne, &c.; it is not closely allied to any other enumerated here.

ALLECULA. | — 418

3. Allecula verepacis. (Tab. XVIII. fig. 18, 2.)

Oblong ovate, rather broad, black, moderately shining, thickly clothed with short pubescence. Head closely
and moderately finely punctured; mandibles broad, feebly notched ; last joint of the maxillary palpi with
its inner apical angle acutely produced; antenne (@) brownish-black, joints 4-10 each a little dilated
at their inner apical angle; prothorax wide, strongly transverse, feebly convex, widest at the base, the
sides sinuate behind and gradually converging from the very prominent subacute outwardly-directed hind
angles, the basal foves scarcely indicated, the disc a little flattened before the base, the surface closely,

_ equally, and somewhat finely but very distinctly punctured; scutellum almost smooth; elytra rather
short and broad, with closely and rather finely punctured shallow stria which become deeper towards
the sides and apex, the interstices moderately convex and very sparsely and finely punctured; beneath
black, more shining, somewhat closely and coarsely punctured, the metasternum deeply canaliculate in

its posterior half and (except at the sides of the groove) very coarsely and sparsely punctured all over ;
legs black, the tarsi lighter.

Length 10? millim.; breadth 43 millim. ( 9.)
Hab, GuaTema.a, Senahu in Vera Paz 3000 feet (Champion).

One female example. Somewhat resembling A. belt?, but shorter, with more finely
punctured and very differently shaped thorax, bifid mandibles, and canaliculate meta-
sternum. A. verepacis bears a close resemblance to several Australian species; it has
the inner apical angles of the last joint of the maxillary palpi very acute, and may have
to be eventually removed from this genus.

4. Allecula ferox. (Tab. XVIII. figg. 19, 19a, 5,6.)

Elongate ovate, black or brownish-black, rather dull, thickly clothed with short pubescence. Head very closely
and rather finely punctured ; mandibles broad, feebly notched; prothorax broader than long, convex, the
sides rounded in front and almost straight behind, the hind angles rather obtuse, the basal fovez almost
obsolete, the base slightly emarginate in front of the scutellum and with a very short shallow longitudinal
impression in front of the emargination, the surface exceedingly closely, equally, and somewhat finely
punctured; scutellum rather closely and finely punctured ; elytra moderately long, subparallel in their
basal half, a little wider posteriorly in the female, with rather finely punctured striw, the punctures
very closely packed, the interstices moderately convex and very closely and finely punctured, the apices
slightly mucronate in the female; beneath more shining, very closely and finely punctured, the sides of
the metasternum and the flanks of the prothorax very coarsely so; legs brownish-black ; antennse fusco-
ferruginous, the joints a little swollen towards their apex.

¢. Tibie curved and slightly sinuous, the anterior pair angularly widened on the inner side before the middle.
Ventral segments 2-4 very feebly carinate in the middle in front, the third more distinctly so. Fifth
ventral segment long, with a large, depressed, almost impunctate space in the centre, the depression
followed by an abrupt and very deep transverse groove and preceded by an indistinct longitudinal élevation
in the middle. The lateral lobes of the last ventral segment very greatly developed, stout, and each
divided into two—the lower one strongly hooked at the apex, twisted, and abruptly curved outwards near
the base, the upper one spatulate in shape and clothed with long hairs within; the central sheath broad
and stout, gradually narrowing, the apex thin, rounded, and bent a little upwards, the apical portion
thickly clothed with short sete above. (Figg. 19 a, 6.)

9. Fifth ventral segment deeply and semicircularly emarginate in the middle at the apex, and with the apical
margin strongly and acuminately produced on each side of the emargination.

Length 12-13 millim.; breadth 43-5 millim. (¢ 2.)

Hab. Guatemata, San Gerénimo (Champion).

Six examples.

414 HETEROMERA.

5. Allecula gaumeri. (Tab. XVIII. fig. 20.)

Oblong ovate, black, rather dull, thickly clothed with short pubescence. Head very closely and rather finely
punctured ; mandibles subtruncate ; antenne long and slender, fusco-ferruginous ; prothorax short and
broad, transversely convex, widest about the middle, the sides a little rounded, the hind angles obtuse,
the basal fovex almost. obsolete, the dise shallowly canaliculate behind, the surface very closely, equally,
and rather finely punctured; scutellum sparsely punctured ; elytra rather short, a little rounded at the
sides, finely punctate-striate, the punctures closely packed, the interstices feebly convex and closely and
finely punctured ; beneath finely and rather closely punctured; the fifth ventral segment normal in both
sexes ; legs comparatively rather short, brownish-piceous.

dg. Anterior tibie slightly sinuous within. The lateral lobes of the last ventral segment perfectly connate at
the base (without trace of median suture), long and very broad, spoon-shaped, inwardly curved towards
the very broad apex, and hairy within, and each armed towards the base at about the middle of the concave
part with a stout pointed prominence, the space between the prominences filled with membrane; the central
sheath broad, its apical portion triangular and setose at the sides. (Fig. 20.)

Length 102-11 millim.; breadth 4-4? millim. (d 2.)

Hab. Mexico, Temax in N. Yucatan (Gawmer).

This species resembles A. ferox, but differs in its less elongate shape, in the more
rounded sides of the thorax, shorter and more slender limbs, and totally different sexual
characters. Five examples.

6. Allecula pilipes. (Tab. XVIII. figg. 21, 21a, ¢.)

Moderately elongate, dull black, the elytra rather more shining, thickly clothed with short pubescence. Head
coarsely and rugosely punctured ; mandibles truncate; antenne (d ) rather stout, joints 4-10 each a little
dilated at their inner apical angle, black, brownish towards the apex ; prothorax small, transverse, feebly
convex, the sides rounded in front but straight behind, the hind angles obtusely rectangular, the basal
fovese scarcely indicated, the disc obsoletely canaliculate at the extreme base, the surface coarsely, equally,
and rugosely punctured ; scutellum rather large, closely punctured; elytra moderately long, much wider
than the prothorax, subparallel in their basal half, with rather deep striw, the striw with fine very closely
packed punctures, the interstices slightly convex and somewhat coarsely and closely punctured; beneath
black, slightly shining, closely and coarsely punctured, the sides of the metasternum and the flanks of the
prothorax very coarsely so ; legs black, very closely and coarsely punctured, and thickly clothed with long
hair.

¢. Anterior tibie sinuate on the inner side before the apex. The lateral lobes of the last ventral segment
parallel to the middle and then narrowed and obliquely converging, the apices approaching close to one
another; the central sheath broad, the apical portion elongate-triangular (the apex itself narrowly
produced) and armed at the sides with very short coarse sete directed backwards. (Fig. 21 a.)

Length 11 millim.; breadth 4 millim. (¢.)

Hab. Mexico, Jalapa (Hége).

One male example. This insect may be recognized by its dull black colour, rugosely
punctured head and thorax, the latter much narrower than the elytra, the very hairy
and roughly punctured legs, &c.

7. Allecula belti. (Tab. XVIII. fig. 22, 2 .)
Oblong ovate, rather broad, piceous-black, shining, thickly clothed with short pubescence. Head very closely
and rather coarsely punctured ; mandibles broadly truncate ; antenne fusco-ferruginous ; prothorax very
broad, strongly transverse, moderately convex, the sides straight from the middle to the base and obliquely

ALLECULA. 415

and somewhat abruptly converging in front, the hind angles sharply rectangular, the basal fovese scarcely
indicated, the surface unimpressed, and closely, coarsely, and equally punctured; scutellum sparsely
punctured ; elytra rather long, a little rounded at the sides, with coarsely but not closely punctured
very shallow strie, the strie becoming much deeper and more finely punctured towards the apex, the
interstices feebly convex and sparsely and finely punctured, the punctures distinctly coarser towards the
apex; beneath closely and somewhat coarsely punctured, the metasternum flat and almost unimpressed in
the middle, the mesosternum convex and rather abruptly declivous in front ; legs brownish-piceous.
Length 123-14 millim.; breadth 54 millim. ( 9.)

Hab. Nicaraeua, Chontales (Belt).

Two female examples. The broadly truncate mandibles, very broad, strongly trans-
verse, and coarsely punctured thorax, broad and oblong ovate shape, and other
characters mentioned above, will enable this insect to be easily identified.

2. Tarsi feebly lobed beneath; upper surface more depressed ; elytra very shallowly
and very finely punctate-striate.

8. Allecula depressa, (Tab. XIX. figg. 1, 1a, ¢.)

Elongate, rather depressed, obscure reddish-brown or brownish-piceous, slightly shining, thickly clothed with
short pubescence. Head closely, irregularly, and rather finely punctured, a space on the middle of the
vertex smoother; eyes comparatively large, and moderately widely separated; antenne ferruginous ;
prothorax transverse, small, narrow, feebly transversely convex, the sides almost straight or very slightly
narrowing behind and narrowed and a little rounded in front, the hind angles rather obtuse, the disc
shallowly but somewhat broadly canaliculate, and transversely flattened before the base and apex, the
basal fovese scarcely indicated, the surface finely (but deeply), irregularly, and rather sparsely punctured ;
scutellum sparsely punctured ; elytra long, depressed on the disc, subparallel in their basal half, much
broader than the prothorax, with very fine shallow striz, the strie with moderately fine and closely placed
punctures, the interstices almost flat, very feebly convex towards the apex, and each with about two rows
of fine punctures; beneath finely and sparsely punctured, the metasternum very closely and finely so
in the middle behind in the male; legs slender, fusco-ferruginous.

¢g. Anterior tibiz triangularly widened on the inner side about the middle. The lateral lobes of the last
ventral segment broad at the base, narrow and slender outwardly, abruptly curved inwards about the
middle, the apices blunt and almost meeting; the central sheath gradually narrowing, the apex slightly
rounded, the basal part of the apical portion roughened and slightly setose on each side. (Fig. 1 a.)
Length 93-103 millim.; breadth 33-33 millim. (¢.)

Hab. Mexico (coll. F. Bates), Capulalpam (Sa//é).

Four male examples. Labelled Allecula(?) mexicana, Dej., in Mr. F. Bates’s
collection.

9, Allecula opacipennis. (Tab. XIX. fig. 2.)

Moderately elongate, rather depressed, piceous-brown, rather dull, the elytra opaque, thickly clothed with short
pubescence. Head closely punctured, a space on the middle of the vertex smoother; prothorax trans-
verse, small, narrow, feebly transversely convex, the sides slightly rounded, widest at the middle, and
narrowing almost as much behind as in front, the hind angles very obtuse, the disc shallowly but rather
proadly canaliculate and transversely flattened before the base and apex, the basal fovex small and shallow,
the surface finely (but deeply) and rather closely punctured ; scutellum finely and somewhat closely punc-
tured ; elytra moderately long, depressed on the disc, much broader than the prothorax, subparallel in their

416 HETEROMERA.

basal half, with very fine lightly impressed striw, the strie with exceedingly fine, jeri leo ante
punctures, the interstices quite flat and each with about two rows of very minute pune enn ; benea
finely and sparsely punctured, the fifth ventral segment much more closely so, the metas ernum very
closely and finely punctured in the middle behind in the male; legs and antenne ferruginous. a,

g. Anterior tibie triangularly widened on the inner side about the middle. The lateral lobes o e _
ventral segment much curved and gradually narrowing towards the apex, the apices converging towards
each other; the central sheath much as in A. depressa. (Fig. 2-)

Length 84 millim.; breadth 3 millim. (d.)

Hab. Mexico, Etla (Sallé).

A single male example. This species is closely allied to the preceding ; it differs as
follows :—The thorax is more rounded at the sides, almost as much narrowed behind
as in front, and more closely punctured ; and the elytra are comparatively much shorter,
opaque, very lightly and minutely punctured, and with the interstices quite flat.

10. Allecula angustata. (Tab. XIX. fig. 3.)

Elongate, narrow, reddish-brown or brownish-piceous, scarcely shining, thickly clothed with short pubescence.
- Head closely but not very finely punctured; eyes rather large and convex ; prothorax transverse, small,
feebly transversely convex, widest at the middle, the sides a little rounded but almost straight or very
slightly narrowing behind, the hind angles obtuse, the disc shallowly canaliculate, more distinctly so
behind, and transversely flattened before the base, the basal fovez small and very shallow, the surface very
finely and closely punctured ; scutellum somewhat closely punctured ; elytra long and narrow, sub-
parallel to beyond the middle, much wider than the prothorax, very finely and lightly punctate-striate, the
interstices very feebly convex and rather closely punctured, the punctures not much finer than those of the
strie ; beneath more shining, finely and sparsely punctured, the metasternal side-pieces closely and
coarsely so; legs and antenne fusco-ferruginous, the femora darker.

g. Anterior tibie curved a little outwards towards the apex, unarmed on the inner side. The lateral lobes of
the last ventral segment slender and curved inwards, the apices widely apart; the central sheath with its
apical portion subtriangular in shape, the sides of this part armed towards the base with a few very
short sete directed backwards. (Fig. 3.)

Length 83-93 millim.; breadth 23-3 millim. (<¢.)

Hab. Mexico, Tula in Hidalgo, Yautepec in Morelos (Hége).

Three examples. Much narrower than A. depressa; the thorax more finely and
closely punctured, the punctures of the elytra] striz much finer, the metasternal side-
pieces more closely punctured, &c.

This insect approaches Alethia hégei in its general facies; it differs, however, in the
broader apical joint of the labial palpi, as well as by other characters. |

11. Allecula laticeps. (Tab. XIX. fig. 4, 2.)

Moderately elongate, rather broad, dull brownish-piceous or black, very sparsely clothed with pubescence.
Head broad, closely and shallowly punctured, the vertex smoother; eyes (Q) rather small, very widely
separated; prothorax transverse, broad, transversely convex, the sides a little rounded and narrowing
almost as much behind as before, the hind angles obtuse, the disc obsoletely canaliculate and somewhat
convexly raised on each side behind the middle, the basal fovee shallow and ill-defined, the surface
uneven and finely, irregularly, and rather sparsely punctured ; scutellum finely and sparsely punctured ;
elytra rather broad, moderately long, much wider than the prothorax, widest behind the middle, the
sides straight in front and obliquely cut off behind, the apices broadly rounded, with rows of moderately
fine approximate punctures placed upon very shallow striw, the interstices almost flat and each with

AULECULA.—ALETHIA. ALT

about two rows of exceedingly shallow fine punctures; beneath brownish, comparatively smooth, the

sides of the metasternum with coarse, the fifth ventral segment with fine scattered, punctures, the ventral

surface with shallow longitudinal wrinkles ; antenn ferruginous; legs rather stout, fusco-ferruginous.
Length 10-11 millim.; breadth 4} millim. (92.)

Hab. Mexico, Capulalpam (Sailé).

Three female examples. In this insect, the male of which is unknown, the head and
thorax are much broader than in the other species included in the genus, and the eyes
are smaller and project very little laterally. The head is formed much as in the
European Upinella aterrima, Muls.

ALETHIA.

Last joint of the labial palpi ovate, truncate in front; last joint of the maxillary palpi elongate-triangular,
comparatively narrow (very narrow in <A. salle), the outer side the longest, or the apical and outer
sides about equal; mandibles feebly bifid; antenne long or very long, filiform, varying in thickness, in
some species very slender, the third joint as long as the fourth; eyes large or moderately large, not very
widely separated ; prothorax small, more or less transverse, narrowly margined at the sides, the base very
feebly bisinuate ; elytra much wider than the prothorax, long or very long, subparallel, confusedly punc-
tured or very finely punctate-striate ; legs long and slender, the first joint of the hind tarsi long (in
A. sallewi &c. very elongate); anterior and intermediate tarsi with the third and fourth joints very
feebly and narrowly lobed beneath, the penultimate joint of the posterior tarsi simple or very feebly lobed ;
anterior tibie slender, and in the male curving a little outwards towards the apex ; prosternum narrow ;
body narrow, elongate, subparallel, more or less depressed, pubescent, winged.

Several species from Mexico agree very well inter se in most of the above characters.
All have much the facies of Allecula angustata and its allies, though differing in the
less widened apical joint of the labial palpi. One or two bear a superficial resemblance
to certain Longicornia, e. g. Leptwra, and one to various “ Cdemerides.” A. sallei
may be taken as the type of the genus. <Alethia closely resembles the Madagascar
genus Stenecula, Fairm., but differs in the smaller and more transverse eyes, slender
legs, &c. In the males of the five species I have examined the lateral lobes of the last
ventral segment are very similarly shaped, ?. ¢. curved inwards and with their apices

approaching each other.

1. Alethia sallewi. (Tab. XIX. figg. 5,3; 5a, labium; 56, maxillary palpus.)
Elongate, narrow, depressed, subparallel, dull piceous-brown, the elytra rather more shining and lighter in tint,
thickly clothed with short pubescence. Head very closely and rugosely punctured ; eyes rather small ;
antenne (¢ ) very long and slender, fusco-ferruginous ; prothorax small, transverse, feebly convex, the sides
almost straight or a little sinuate behind and gradually narrowing in front, the hind angles rectangular or
subacute, the disc sometimes obsoletely canaliculate behind, the basal fove obsolete, the surface punc-
tured like that of the head ; scutellum closely and finely punctured ; elytra very long, subparallel to beyond
the middle, very much wider than the prothorax, depressed on the disc, the humeri rather swollen, the
surface with shallow longitudinal grooves and very thickly, confusedly, and minutely punctured, the usual
rows of punctures distinct at the extreme base only, the interstices feebly convex but flatter on the basal
half of the disc; beneath closely and finely punctured ; legs fusco-ferruginous, very long and slender ;
the tarsi very elongate and fully the length of the tibia, very feebly lobed beneath, the first joint of the
posterior pair exceedingly long.
Length 8-9 millim.; breadth 2? millim. (¢.)
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1888. 3 HH

418 HETEROMERA.

Hab. Mexico, Guanajuato (Sallé).

Four examples. In this species, and in A. longipennis and A. subnitida, the apical
joint of the maxillary palpi (fig. 5 a) is narrower than in the allied forms ; and the tarsi

are exceedingly long and slender.

2. Alethia longipennis. (Tab. XIX. fig. 6.)

Very elongate and parallel, narrow, slightly convex, dull piceous-brown, the elytra slightly shining, thickly
clothed with short pubescence. Head very closely and rugosely punctured ; eyes convex, moderately large ;
antenne long and very slender, ferruginous; prothorax small, comparatively elongate, not very much
broader than long, feebly convex, the sides almost straight behind and gradually narrowing in front, the
hind angles rectangular, the disc a little flattened before the base, the basal fovez obsolete, the surface
punctured like that of the head ; scutellum closely punctured ; elytra very long, parallel to far beyond the
middle, much wider and more shining than the prothorax, with narrow longitudinal grooves which become
deeper towards the apex, the surface finely, thickly, and confusedly punctured, the usual rows of punetures
distinct at the base only, the interstices feebly convex but flatter on the basal half of the dise; beneath
sparsely and finely punctured, the sides of the metasternum more closely and more coarsely so; legs fusco-
ferruginous, very long and slender, the tarsi very long and with the first joint of the posterior pair very
elongate.

Length 8 millim.; breadth 2} millim.

Hab. Mexico, Aguas Calientes city (Hége).

One example, possibly a female. Narrower and rather more convex than 4. salle?,
the thorax less transverse, the elytra more shining and not so finely punctured. 4. longi-
pennis bears a strong resemblance to various “ (édemerides.”

8. Alethia subnitida. (Tab. XIX. fig. 7, 3.)

Elongate, narrow, subparallel, piceous-brown, slightly shining, thickly clothed with long pubescence. Head
closely but not very finely punctured ; eyes convex, comparatively large; antenn ( ¢) long and slender,
ferruginous ; prothorax small, broader than long, slightly convex, the sides almost straight behind and
gradually narrowing in front, the hind angles subrectangular, the dise slightly depressed before the base
and apex, the basal foveze obsolete, the surface uneven and closely and not very finely punctured; scu-
tellum sparsely punctured; elytra moderately long, subparallel in their basal half, much wider than the
prothorax, with rows of fine approximate punctures placed upon shallow strie, the interstices almost
flat, feebly convex at the apex, and finely and rather thickly punctured, the punctures of the strie
becoming finer beyond the middle and there confounded with those of the interstices ; beneath closely and
finely punctured ; legs ferruginous, long and slender.

Length 84-83 millim.; breadth 2? millim. (<¢.)

Hab. Mexico, Chilpancingo in Guerrero, Guadalajara in Jalisco (Hége).

Two examples only. From J. sallewi and A. longipennis this insect is easily separated
by its very differently sculptured thorax (the punctures separate one from another),
more shining surface, shorter elytra, longer pubescence, &c.

4. Alethia azteca. (Tab. XIX. fig. 8, 3.)

Very elongate, narrow, much depressed, parallel, dull brownish-black, sparsely clothed with short pubescence.
Head very closely and rugosely punctured; eyes moderately large ; antenns ( ¢ ) very long and slender,
brownish-piceous; prothorax small, transverse, feebly convex, the sides almost straight behind and gra-
dually narrowing in front, the hind angles obtuse, the disc a little flattened and shallowly impressed

ALETHIA., 419

before the base, the basal fovese obsolete, the surface very closely and rugosely punctured ; elytra very
long, parallel to far beyond the middle, very much wider than the prothorax, much depressed on the disc,
the humeri swollen and prominent, the surface very minutely punctate-striate, the interstices perfectly flat
and very minutely and rather sparsely punctured, the punctures confounded with those of the strix;
beneath more shining, finely and rather closely punctured ; legs brownish-piceous, very long, the tarsi
especially, the first joint of the posterior tarsi exceedingly elongate.

Length 10 millim.; breadth 3 millim. (¢ )

Hab. Mexico, Guanajuato (Sailé).

Two male examples. This insect is allied to 4. lepturoides and A. sall@i; from the
former it differs in its more depressed form, longer and much more slender antenne,
very much longer elytra, more prominent humeri, shorter pubescence, and the much
longer first joint of the posterior tarsi; and from the latter by its much flatter and more
sparsely punctured elytra, &c. The elytra at first sight, as in several of the allied
species, appear to be confusedly punctured; but when examined under a strong lens
the regular rows of minute punctures can easily be detected.

5. Alethia lepturoides. (Tab. XIX. figg. 9,94, ¢.)

Elongate, narrow, depressed, dull brownish-black, thickly clothed with long pubescence. Head very closely and
rugosely punctured ; eyes rather large and convex; antenne (¢) long, comparatively stout, fusco-ferru-
ginous; prothorax small, strongly transverse, moderately convex, the sides almost straight behind but
rounded in front, the hind angles rather obtuse, the disc a little flattened before the base, the basal foves
obsolete, the surface punctured like that of the head ; scutellum sparsely punctured ; elytra long, parallel
in their basal half, depressed, very much wider than the prothorax, with rows of exceedingly minute punc-
tures placed upon very fine obsolete striz, the interstices flat and very minutely and rather thickly punc-
tured, the punctures confounded with those of the striz ; beneath more shining, finely and rather closely
punctured, the metasternum closely and coarsely so at the sides; legs fusco-ferruginous.

g. The lateral lobes of the last ventral segment abruptly curved inwards about the middle, the apices blunt
and converging; the central sheath rather narrow, the apical portion bent upwards, the apex blunt.
(Fig. 9 a.)

Length 9-93 millim.; breadth 2? millim. (<¢.)

Hab. Mexico (Sallé).

Three examples. This species, on account of its long and rather stout antenne and
prominent eyes, has somewhat the facies of a Leptura.

6. Alethia funerea.

Elongate, rather narrow, black, opaque, thickly clothed with short pubescence. Head very closely and rugosely
punctured; eyes convex, large; antenne (¢) stout, moderately long, tapering a little outwardly, fusco-
ferruginous ; prothorax transverse, but not strongly so, moderately convex, the sides almost straight
behind and very gradually narrowing in front, the hind angles obtuse, the disc slightly flattened before
the base but otherwise unimpressed, the basal foves obsolete, the surface punctured like that of the head ;
scutellum closely punctured; elytra moderately long, subparallel, much wider than the prothorax, with
rows of very minute punctures placed upon obsolete strie, the interstices perfectly flat and with exceedingly
minute punctures ; beneath rather dull, finely and rather closely punctured, the metasternum closely and
coarsely so at the sides; legs fusco-ferruginous.

Length 9 millim.; breadth 3z millim. (¢.)

Hab. Muxico, Chilpancingo in Guerrero (Hoge).
3 HH 2

420 HETEROMERA.

One male example. Rather broader than A. lepturoides; the upper surface more
opaque, the eyes larger, the thorax larger and less strongly transverse, the rows of
punctures on the elytra a little more distinct, the pubescence shorter, &c.

7. Alethia hogei. (Tab. XIX. fig. 10.)

Elongate, rather narrow, brownish-piceous, dull, the elytra a little more shining, thickly clothed with short
pubescence. Head very closely and rugosely punctured ; eyes (d ) comparatively small, widely separated ;
antenne ( ¢ ) rather stout, tapering a little towards the apex, piceo-ferruginous, the base and apex lighter ;
prothorax small, transverse, moderately convex, the sides slightly rounded, narrowing very little in front,
and feebly sinuate behind, the hind angles subrectangular, the basal fovese shallow but distinct, the disc a
little flattened behind but not canaliculate, the surface punctured like that of the head; scutellum sparsely
punctured; elytra moderately long, subparallel, much wider than the prothorax, finely punctate-striate,
the punctures placed close together, the interstices very feebly convex, flat on the basal half of the disc,
and thickly punctured, the punctures scarcely finer than those of the strie; beneath more shining, sparsely
but not very finely punctured, the metasternum and side-pieces closely and coarsely so; legs fusco-
ferruginous.

¢. The lateral lobes of the last ventral segment somewhat spoon-shaped, curved inwards, the apices rather
blunt and clothed with a few long hairs. (Fig. 10.)

Length 8 millim.; breadth 25 millim. (¢.)

Hab. Mexico, Chihuahua city ({ége).

One example. Shorter than 4. lepturoides, the eyes smaller, the thorax with more
distinct basal fovee, the elytra relatively shorter, more shining, and more closely and
not so minutely punctured, the pubescence shorter, &c.

THEATETES.

Last joint of the labial palpi broad, triangular; last joint of the maxillary palpi broadly triangular, its apical
side much the longest; mandibles feebly bifid; antenne stout, moderately long, scarcely longer in the
male, joint 1 comparatively very long and stout, 2 very short and small, 3 moderately long, longer than 4
but very much shorter than 1, 4-7 about equal in length, 8-11 each a little longer than 7, 4-10 broad
and widening a little towards their apex, 11 oblong ovate, 4—6 dilated on the inner side in the male ;
head rather deeply sunk into the prothorax; eyes transverse, moderately large and somewhat widely
separated in the male, smaller and more distant in the female ; prothorax short and very broad, strongly
transverse, distinctly margined at the sides and base, the base strongly bisinuate; scutellum transverse ;
elytra a little wider than the prothorax, moderately long ; legs very rough and setose, rather short and
stout ; anterior and intermediate tarsi with the third and fourth joints, and the posterior tarsi with the
penultimate joint rather feebly lobed beneath in both sexes; prosternum declivous behind and armed with
a small raised point at the apex; body oblong ovate, pubescent, winged.

This genus contains a single species from Mexico; it is at once separated from its
allies by the comparatively very long and stout basal joint of the antenne.

1. Theatetes basicornis. (Tab. XIX. figg. 11, lla, ¢.)

Oblong ovate, moderately convex, dull black, thickly clothed with short pubescence. Head densely and rather
coarsely punctured; prothorax very broad, strongly transverse, rather convex, the sides much rounded
anteriorly but nearly straight behind, the hind angles subrectangular, the basal foves obsolete, the disc
unimpressed, the surface densely and rugosely punctured; scutellum closely punctured ; elytra deeply
striate, the strieze with fine oblong, subconfluent impressions, the interstices feebly convex, almost flat on
the basal half of the disc, and thickly and asperately punctured ; beneath more shining, coarsely and rather

THEATETES.—CHARISIUS. 421

closely punctured, the metasternum still more coarsely so; legs brownish-black ; antenne black or
brownish-black, the extreme apex ferruginous.

¢. Antenne with the basal joint a little longer and stouter than in the female; joint 4 triangularly dilated,
joints 5 and 6 much dilated within, their inner sides rounded, each much wider than 4 or 7, 5 the widest.
Anterior tibie unarmed. The lateral lobes of the last ventral segment long and thin, narrow, inwardly
curved, and narrowing a little towards the apex. (Fig. 11a.)

Length 72-10 millim.; breadth 34-42 millim. (¢ 2.)

Hab. Mexico, Jalapa, Almolonga (Hége).

Six examples, two only of which are males.

CHARISIUS.

Last joint of the labial palpi broad, triangular; last joint of the maxillary palpi elongate-triangular, its apical
and outer sides about equal; mandibles slightly bifid; antenne slender or moderately slender, the joints
long and subfiliform or somewhat obconic, the third joint about as long as the fourth ; head not very deeply
sunk into the prothorax, in C. salvini and C. zunilensis somewhat strongly exserted; eyes rather small,
widely and equally separated in both sexes; prothorax much narrower than the elytra, nearly as long as
broad and subcylindrical (a little depressed in C. fasciatus), or transverse, feebly bisinuate at the base,
distinctly margined on all sides, and with a well-defined deep transverse groove behind placed immediately
above and extending as far laterally as the basal fovese; scutellum small, subtriangular; elytra long,
subparallel, or a little widened posteriorly with the apices somewhat broadly produced, punctate-striate,
the sutural stria usually deeply impressed, the humeri broadly rounded and shallowly impressed within ;
legs sparsely pilose, the femora glabrous ; anterior and intermediate tarsi with the third and fourth joints
and the posterior tarsi with the penultimate joint broadly lobed beneath, especially in the male, the first
and second joints of the anterior pair also more or less lobed in this sex; anterior tibie in the male
simple or a little widened on the inner side about the middle ; first joint of the posterior tarsi long or very
long; metasternum long (in C. fasciatus very long); prosternum narrow, rather convex, abruptly decli-
vous behind; body elongate, glabrous, shining, winged.

This genus is proposed to include four species from Central America, and probably
one or two others from Tropical South America, all agreeing in the above particulars.
In general facies Charistus somewhat approaches the Australian genus Zanychilus; but
is distinguished from it by the last joint of the maxillary palpi being stouter and more
triangular in shape, and by the cleft mandibles and other characters.

From Allecula it is separated by the less widened apical joint of the maxillary palpi,
transversely grooved thorax, and general facies.

In both sexes the third and fourth joints of the anterior and intermediate tarsi and
the penultimate joint of the posterior tarsi are very distinctly lobed beneath, still more
broadly so in the male. In the males of the four Central-American species the lateral
lobes of the last ventral segment are a little curved and more or less spoon-shaped or
spatulate in shape ; and the central sheath is more or less acuminate, but with the apex

rounded or slightly hooked.

1. Charisius fasciatus. (Tab. XIX. figg. 12, 12¢,¢; 13,2, var.)
Elongate, shining, varying in colour—red, reddish-brown, or brownish-black, the elytra each with an oblong
patch on the disc before the middle, a transverse zigzag band some distance beyond the middle (extending
to the lateral margin but not to the suture), and a similar but oblique band nearer the apex, stramineous

422 HETEROMERA.

é.

or testaceous, the light markings more or less surrounded by prownish-black. Head sparsely and finely
punctured, the vertex smoother and shallowly longitudinally impressed in the middle ; prothorax narrowing
anteriorly from the middle, the sides a little sinuate behind, the hind angles rather obtuse, the dise deeply
canaliculate before the base and apex and somewhat flattened, the transverse basal groove and the basal
foves very deep, the surface very finely and remotely punctured ; elytra very long, widest beyond the
middle, the apices somewhat broadly produced, with rows of rather fine approximate punctures placed
upon shallow strie, the interstices impunctate, flat at the extreme base, and thence gradually becoming
more convex, and at the apex subangularly raised ; beneath reddish-brown, the metasternum very long,
shallowly canaliculate, and very finely and sparsely punctured in the middle and coarsely so at the sides,
the ventral surface almost smooth, the apical margin of the fourth segment with a row of punctures, the
fifth ventral segment unimpressed in both sexes; legs and antenne varying in colour from ferruginous to
brownish-black.

Anterior tibie slightly widened on the inner side before the middle. The lateral lobes of the last ventral
segment strongly curved, narrow, and somewhat spatulate in shape; the central sheath acuminate, the
apex slightly rounded. (Fig. 12 a.)

Length 104-124 millim.; breadth 33-4 millim. (d 2.)

Hab. Guaremata, Totonicapam 8500-10,500 feet, Quiche Mountains 9000 feet

(Champion).

Var. The discoidal spot on the elytra obsolete. (Fig. 13.)

Hab. Guatemaa, Cerro Zunil 5000 feet, Calderas 6000 feet (Champion).
Eight examples, five of the typical form and three of the variety.

2. Charisius zunilensis. (Tab. XIX. fig. 14, ¢.)

Elongate, rather narrow, subcylindrical, reddish-brown, the prothorax and the basal half of the elytra sometimes

stained with piceous, shining. Head closely and finely punctured; prothorax subcylindrical, about as
long as broad, the sides narrowing a little anteriorly and rounded at the apex, and almost straight or
feebly sinuate behind, the disc canaliculate (shallowly in front but very deeply so before the base), the
transverse basal groove moderately deep, the basal foveee shallow, the surface finely and closely punctured ;
elytra long, parallel in their basal half, deeply striate, the striee with closely-placed rather coarse punctures
which become much finer towards the apex, the sutural stria very deep, the interstices smooth and mode-
rately convex ; beneath very finely and sparsely punctured, the metasternum with coarse impressions at the
sides and deeply canaliculate in the middle behind, the ventral surface still more finely punctured and
with very shallow longitudinal wrinkles, the fifth ventral segment unimpressed in both sexes; legs and
antenne ferruginous, the femora sometimes a little darker.

Anterior tibia as in the female. The lateral lobes of the last ventral segment slightly curved and
spoon-shaped ; the central sheath acuminate, the apical portion subparallel and with the apex rounded.

Length 84-9 millim.; breadth 23-24 millim. (3 9.)

Hab. Guatemata, Cerro Zunil 4000-5000 feet (Champion).

Six examples.

3. Charisius interstitialis.

Closely resembling C. zwnilensis, and differing as follows :—Shorter and less cylindrical ; the prothorax shorter

(not so long as broad), and rather more closely punctured ; the elytra shorter, less convex, the interstices
more convex and finely but distinctly punctured; the rest as in C. zunilensis.

3. Anterior tibiz as in the female. The lateral lobes of the last ventral segment spoon-shaped ; the central

sheath acuminate.

Length 63-73 millim.; breadth 23-23 millim. (¢ 9.)

CHARISIUS.—NARSES. 42

Hab. Mexico, Jalapa (Hoge).

Numerous examples. This insect differs constantly from C. zunilensis in the above
particulars, and I have no doubt that it is a good species; both bear a certain resem-
blance to the genus Talanus.

4. Charisius salvini. (Tab. XIX. fig. 15, 3.)

Elongate, rather narrow, convex, subparallel, reddish-brown, the prothorax and the extreme apex of the elytra
sometimes stained with piceous, shining. Head somewhat coarsely and rather closely punctured, a narrow
longitudinal space between the eyes usually impunctate; antenne rather stout, especially in the female ;
prothorax convex, rather broader than long, widest at the middle, the sides rounded, a little sinuate
behind, and almost straight at the base, the hind angles rectangular, the dise shallowly canaliculate, the
transverse basal groove rather deep, the basal foves shallow, the surface coarsely and rather closely punc-
tured ; elytra moderately long, with coarsely and closely punctured rather deep strie, the sutural stria
moderately deep, the interstices smooth and somewhat convex, more strongly so behind; beneath finely
and sparsely punctured, the metasternum and the prothorax very coarsely so at the sides, the former rather
shallowly canaliculate behind; legs and antenne fusco-ferruginous or brownish-piceous.

3. Anterior tibize very feebly widened on the inner side about the middle. Fifth ventral segment semicircu-
larly excavate in the middle at the apex. The lateral lobes of the last ventral segment spatulate in shape,
the apex broad and obliquely cut off; the central sheath gradually narrowing, the apical portion recurved
upwards, the apex slightly hooked.

Length 9-10 millim.; breadth 24-3 millim. (¢ 9.)

Hab. Guatemata, near the city, Chinautla (Salvin), Duefias (Salvin, Champion),
Capetillo, Calderas, Cerro Zunil (Champion).

Var. The elytra each with a small spot at the middle of the disc, two smaller ones towards the apex (one on
the lateral margin and one near the suture, placed transversely), and the apex, black.

Hab. GuatEeMALa, Panajachel (Champion).

Numerous examples of the typical form, one only of the variety. Broader than
C. zunilensis, the thorax more rounded at the sides and much more coarsely punctured,
the striz of the elytra more coarsely punctured, the sutural stria not so deeply im-
pressed, &c.

NARSES.

Oral organs and head much as in Charisius; the eyes somewhat rounded and widely separated in both sexes ;
antenne very long and slender, the joints obconic; prothorax subcylindrical, as long as broad, without
well-defined transverse basilar groove, the base almost straight; scutellum transverse, moderately large ;
elytra ovate in shape, the base truncate and wider than the prothorax, the humeri more abrupt and less
rounded than in Charisius, the sutural stria not deeply impressed; legs, including the tarsi, as in
Charisius, but with much stouter femora; metasternum very short, deeply notched in the middle behind
for the reception of the intercoxal process, the latter subtriangular and transversely convex; body
glabrous, elongate ovate; wings small and not adapted for flying.

A single species from Guatemala, differing from Charistus in the above particulars ;
N. subalatus might perhaps be regarded as a subapterous form of that genus, but I have
thought it advisable to separate it. The tarsi are broadly lobed beneath in both sexes,

424 HETEROMERA.

1. Narses subalatus. (Tab. XIX. figg. 15,4; 16a, labium; 16 4, maxilla

and maxillary palpus.)

Elongate ovate, rather convex, reddish-brown, more or less stained with piceous, the suture of the elytra usually
lighter, moderately shining. Head finely and closely punctured; eyes very widely separated ; prothorax
subcylindrical, rounded at the sides, widest at the middle, distinctly canaliculate, very deeply so behind
and there ending in a short semicircular shallow or deeper impression, the basal fovez small and shallow,
the surface very finely and sparsely punctured ; elytra moderately long, ovate, widest at the middle, flat-
tened towards the base, with rather coarsely punctured striz, the punctures much more scattered and
still coarser towards the apex, the interstices almost flat throughout and each with a median row of
very fine punctures; beneath more shining, sparsely and minutely punctured, the metasternum very
coarsely at the sides and in the male exceedingly closely and finely so in the middle ; the fifth ventral
segment unimpressed in both sexes; legs and antenne fusco-ferruginous, the femora often darker.

3. Anterior tibie as in the female. The lateral lobes of the last ventral segment stout, spoon-shaped ; the
central sheath rather broad, the apical portion subparallel but very slightly widened and spoon-shaped
towards the end.

Length 73-8 millim.; breadth 23-3 millim. (¢ 9.)

Hab. Guatemaa, Totonicapam 8500 to 10,500 feet, Quiche Mountains 8000 feet
(Champion).

Hight examples.

HYMENORUS.
Hymenophorus, Mulsant, Mém. Acad. Lyon, 1851, i. p. 201; Opusc. Ent. i. p. 68 (1852).
Hymenorus, Mulsant, loc. cit. p. 201; loc. cit. p. 188; Hist. Nat. Col. de France, Pectinipédes,
p- 33 (1856) ; Leconte, New Sp. Col. p. 137 (1866).

The numerous species here referred to this genus are connected together by various
intermediate forms. The larger and more elongate members, such as H. occidentalis,
H. tarsalis, &c., seem to connect Allecula and Hymenorus; but with the long series
of species before me they are clearly much more closely allied to the latter. In
Allecula there is a greater disparity between the width of the thorax and elytra (in
Hymenorus the thorax is broader behind and forms a more continuous outline with
the elytra, and consequently the general shape is more ovate), and the antenne are
comparatively longer, more slender, and more filiform. The apical joint of the
maxillary palpi in several of the larger species (H. occidentalis, H. sordidus, H. lati-
collis, &c.) is very broad (with the apical side rather longer than the outer side), and
formed almost as in Allecuda, in others more triangular, and with the apical and outer
sides about equal in length; in a few of the smaller species (H. punctatissimus &c.)
the inner apical angle is more rounded. ‘The third and fourth joints of the anterior
and intermediate tarsi and the penultimate joint of the posterior tarsi are more or less
lobed beneath, often more broadly so (H. tarsalis &c.) in the male. The first joint of
the hind tarsi is in some species longer than the following three joints united.

Good sexual characters exist in many of the species in the larger size and greater
approximation of the eyes, and in the shape of the tibie, in the male; and in
discriminating the numerous closely allied forms it is often necessary to ascertain
the sex of the specimens examined. The eyes vary greatly in size in the different

HYMENORUWS. 425

species: in some they are very large (especially in the male), and in others small
and widely separated in both sexes. The third and fourth joints of the antenne are
about equal in length, the third being rarely (H. tibialis) a little shorter than the
fourth. With one exception (H. pini), the whole of the Central-American species
have the surface of the thorax more or less densely punctured; in the majority of
those inhabiting the United States the thorax is more sparsely punctured, and in con-
sequence more shining.

The head-quarters of Hymenorus in the New World would appear to be in Mexico,
the genus extending northwards to the Middle United States, and southwards to
Nicaragua. In the State of Panama I did not obtain a single representative. Eleven
species (nine of which have been kindly communicated to me by Dr. Horn) have been
described from the United States, and two or three are known from Europe or Asia
Minor, and others, as yet unnamed, exist in collections; two of the North-American
forms are stated to be of myrmecophilous habits.

1. Hymenorus occidentalis. (Tab. XIX. figg. 17, 17a, ¢.)

Elongate, obscure reddish-brown or brownish-piceous, scarcely shining, thickly clothed with short pubescence.
Head very closely and finely punctured; eyes large, rather narrowly separated in the male, a little more
distant in the female; antenne stout, rather short in both sexes, ferruginous; prothorax large, convex,
broader than long, the sides much rounded anteriorly though nearly straight behind, the hind angles rather
obtuse, the disc transversely flattened before the base, the basal fovew shallow or indistinct, the surface
very densely and rather finely punctured; scutellum closely punctured; elytra long, a little wider than
the prothorax, subparallel in their basal half, with rows of fine oblong punctures placed upon very
shallow strie, the interstices almost flat, and very closely, finely, and confusedly punctured; beneath
more shining, closely and finely punctured, the sides of the metasternum much more coarsely so, the
middle of the metasternum in the male exceedingly closely and minutely punctured and very thickly

pubescent ; legs stout, reddish-testaceous or ferruginous.
¢. Anterior tibie slightly sinuous within. The lateral lobes of the last ventral segment narrow, mode
rately curved, bluntly rounded at the apex, and roughened and hairy beneath; the central sheath

narrowing to the apex, the apex blunt. (Fig. 17a*.)
Length 9-11} millim.; breadth 3}-83 millim. (¢ 2.)

Hab. Nortu America, Texas (coll. F. Bates).—Mexico (Sallé, ex coll. Sturm), Cordova,
Guanajuato (Sal/é).

Three specimens only from Mexico, several from Texas; one of the former (very
immature) is labelled Allecula brunnea, Sturm, in the Sallé collection. Texan
examples in Mr. F. Bates’s collection are labelled Allecula, nov. sp., apud Horn.
This species has the thorax rather large, much rounded at the sides, and very densely
punctured ; the elytra finely punctate-striate, and with the interstices very closely
punctured; the legs comparatively stout; and the last joint of the maxillary palpi
very broad, with its apical side longer than the outer side.

* The figure given is not quite correct: the pieces on either side of the base of the central sheath are not

separated from the segment as they should be.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3II

426 HETEROMERA.

2. Hymenorus brevicornis, (Tab. XIX. fig. 18.)

Elongate, narrow, subparallel, brownish-piceous, scarcely shining, thickly clothed with short pubescence.
Head somewhat closely and finely punctured; eyes moderate in size in both sexes, rather narrowly
separated; antenna short and rather stout, stouter in the female, only reaching to about the first
fourth of the elytra in either sex, reddish-testaceous; prothorax convex, strongly transverse, the sides
much rounded anteriorly but straight behind, the hind angles obtuse, the disc feebly impressed in the
middle before the base, the basal fovece almost obsolete, the surface very densely and finely punctured ;
scutellum closely punctured ; elytra long, a little wider than the prothorax, subparallel to beyond the
middle, with rows of fine oblong punctures placed upon very shallow striz, the interstices almost flat and
very closely, finely, and confusedly punctured; beneath and the legs as in H. ocecdentalis.

g. Anterior tibie slightly widened on the inner side from a little before the middle. The lateral lobes of the
last ventral segment long and thin, rather broad, somewhat spoon-shaped, rounded at the apex, and very
slightly hairy beneath; the central sheath narrowing to the apex, the apex blunt. (Fig. 18.)

Length 9-94 millim.; breadth 3-37 millim. (¢ 9.)

Hab. Mexico (coll. F. Bates), near the city, Jalapa (Hoge).

Three examples only. This species is closely allied to H. occidentalis, but differs in
its narrower and more parallel shape, less dull surface, more transverse thorax, rather
longer elytra, and different male characters.

3. Hymenorus durangoensis.

Elongate, brownish-piceous, opaque, sparsely pubescent. Head somewhat closely and finely punctured ; eyes
(©) large, widely separated; antenne (@) long and rather slender, ferruginous ; prothorax transverse,
feebly convex, a little depressed on the disc behind, the sides almost straight towards the base and some-
what obliquely converging in front, the hind angles obtuse, the basal fovese almost obsolete, the surface
very finely, shallowly, and closely punctured, the punctures a little more scattered on the basal half of
the disc; scutellum closely punctured ; elytra long, a little wider than the prothorax, subparallel in their
basal half, with rows of fine punctures placed upon obsolete strie, the interstices flat and each with about
three rows of very fine not very closely placed punctures; beneath closely and finely punctured; legs
obscure testaceous, rather long and slender.

Length 93-94 millim.; breadth 3z millim. (.)

Hab. Mexico, Ciudad in Durango (Hoge).

Two immature female examples. H. durangoensis is easily distinguished from
H. occidentalis and H. brevicornis by its opaque surface, long antenne, less convex
and more sparsely punctured thorax, and by the punctures of the elytral interstices
being placed in rows.

4. Hymenorus tarsalis. (Tab. XIX. fig. 19.)

Elongate, piceous-brown, sometimes lighter in tint, slightly shining, thickly pubescent. Head very closely
and somewhat coarsely punctured; eyes rather small, equally and somewhat widely separated in both
sexes; antenne rather slender, moderately long in the male, much shorter in the female, ferruginous,
joints 3-6 often stained with piceous; prothorax broader than long, moderately convex, the sides
converging from the base, and a little rounded in front, the hind angles rather obtuse, the disc obsoletely
canaliculate, and transversely impressed in the middle behind, the basal fover usually distinct, the
surface densely and finely punctured; scutellum closely punctured; elytra moderately long, slightly
wider than the prothorax, subparallel in the male, a little wider posteriorly in the female, finely but
rather deeply punctate-striate, the interstices almost flat, and thickly and confusedly punctured; beneath
closely punctured; legs moderately long, more or less ferruginous (the tibize sometimes a little darker),
in the male much stouter than in the female and with the tarsal lobes much more broadly dilated.

HYMENORUS. 427

g. Anterior tibiz simple. The lateral lobes of the last ventral segment rather long, thin, broad, and spoon-
shaped, broadly rounded at the apex; the central sheath rather broad, gradually narrowing, the apical
portion long and elongate-triangular in shape, the apex blunt. (Fig. 19.)

Length 8-84 millim.; breadth 24-22 millim. (¢ 9.)

Hab. Guatemaua, Calderas 6000 feet, Capetillo (Champion).

Numerous examples. In the male of this insect the legs are very stout, and the
tarsal lobes are more broadly dilated than in the female. ZH. tarsalis is closely allied
to. H. oculatus, though differing greatly in the size of the eyes and in the tarsal
structure in the male; in the last-named sex of H. oculatus the legs are not stouter
and the tarsi not more broadly lobed than in the female of H. tarsalis. This insect
inhabits the slopes of the Volcan de Fuego, and was obtained by beating the lower
branches of trees.

5. Hymenorus oculatus. (Tab. XIX. figg. 20, 20a, 3.)

Elongate, subparallel, brownish-black, slightly shining, thickly pubescent. Head closely and finely punctured ;
eyes (3) very large, very narrowly separated; antenne (¢) long, about reaching to the middle of the
elytra, the joints somewhat strongly widened towards their apex, fusco-ferruginous, the two basal joints
lighter; prothorax rather convex, broader than long, the sides gradually converging from the base to
about the middle and then rounded and more rapidly narrowing to the apex, the bind angles rather
obtuse, the basal foves indistinct, the disc slightly depressed in the middle before the base, the surface
densely and finely punctured; scutellum closely punctured; elytra moderately long, a little wider than
the prothorax, subparallel to beyond the middle, finely punctate-striate, the interstices almost flat and
finely and rather closely punctured; beneath more shining, finely and rather closely punctured; legs long
and rather slender, ferruginous, the tibie darker.

3. Anterior tibie simple. The lateral lobes of the last ventral segment broad and thin, spoon-shaped, and
broadly rounded at the apex; the central sheath with its apical portion long, parallel towards the end,
the apex bluntly rounded. (Fig. 20) a.)

Length 64-94 millim.; breadth 23-23 millim. (<.)

Hab. Mexico, Jalapa (Hége) ; Guatemaa, San Lucas (Champion).

Two male examples. This insect may be identified by its elongate, subparallel
shape, very large and approximate eyes, &c. ‘The Guatemalan example is very much
larger, and has the elytra longer than the Mexican one, but otherwise agrees well
with it. HA. oculatus much resembles the genus Dircea.

The Guatemalan specimen was found by the side of the main road on the summit of
the ridge between the city of Guatemala and Antigua, beneath loose bark, at an

elevation of 6400 feet.

6. Hymenorus sordidus. (Tab. XIX. fig. 22.)

Elongate, reddish- or piceous-brown, slightly shining, thickly pubescent. Head very closely and rather coarsely
punctured; eyes (¢) very large, narrowly separated ; antenne ( 3) moderately long, rather stout, entirely
ferruginous ; prothorax convex, broader than long, the sides almost straight behind, or very gradually
and obliquely converging from the base to the middle, and rounded and rapidly narrowing in front, the
hind angles subrectangular, the disc obsoletely canaliculate behind, and shallowly transversely impressed
in the middle before the base, the basal fovee indistinct, the surface densely and finely punctured ;
scutellum closely punctured; elytra moderately long, a little wider than the prothorax, subparallel in

3IT 2

428 HETEROMERA.

their basal half, finely and rather deeply punctate-striate, the interstices slightly convex and closely and
confusedly punctured ; beneath more shining, closely and somewhat coarsely punctured; legs moderately
stout, more or less ferruginous, the tibie a little darker; anterior and intermediate tarsi with the third
and fourth joints, and the posterior tarsi with the penultimate joint, feebly lobed beneath.

3g. Anterior tibia simple. The lateral lobes of the last ventral segment broad and spoon-shaped, very
broadly rounded and slightly setose at the apex; the central sheath narrow, the apical portion long, the
apex blunt. (Fig. 22.)

Length 73-72 millim.; breadth 24 millim. (¢.)

Hab. Mexico, Cordova (Sallé); Guaremana, Capetillo (Champion).

Seven examples, apparently all males. In the size and approximation of the eyes
in the male this species is intermediate between H. oculatus and H. tarsalis; from the
corresponding sex of the former it differs in the shorter, stouter, and entirely ferruginous
antenne, less approximate eyes, &c.; and from the latter in the feebly dilated tarsi and
the larger eyes in the male, shorter elytra, &c.

The specimens vary a little in the shape of the thorax, one or two having the sides
rather more parallel before the base.

7. Hymenorus pini. (Tab. XIX. fig. 21, ¢.)

Moderately elongate, rather depressed, brownish-black, shining, sparsely pubescent. Head closely and finely
punctured, the vertex rather more coarsely so; eyes (¢)small and widely separated; antenne(¢ ) rather
short, moderately stout, ferruginous; prothorax transverse, slightly convex, the sides very gradually
converging from the base to about the middle and then rounded, and more rapidly narrowing to the
apex, the hind angles obtuse, the basal fovee shallow, the disc a little flattened before the base, the
surface finely and somewhat closely punctured; scutellum closely punctured ; elytra moderately long,
distinctly wider than the prothorax, the sides almost straight though gradually widening to beyond the
middle, depressed on the disc, with rows of fine oblong punctures placed upon shallow strie, the inter-
stices flat and each with about two rows of very fine punctures; beneath finely and rather closely
punctured; legs long and slender, ferruginous, the third and fourth joints of the anterior and intermediate
tarsi and the penultimate joint of the posterior tarsi feebly lobed beneath.

3g. Anterior tibie simple. The lateral lobes of the last ventral segment very short and broad, consisting only
of a triangular extension of the segment on each side; the central sheath with its apical portion very
long, the apex blunt and slightly curved downwards.

Length 74--84 millim.; breadth 23-3 millim. (¢.)

Hab. GuatEMALA, Totonicapam 10,000 feet, Quiche Mountains 8500 feet (Champion).

Three examples, all males. This species differs from all others of the genus here
described in the more sparsely punctured surface of the thorax. H. pini inhabits the
pine-forest region of Los Altos, Guatemala.

8. Hymenorus canaliculatus.

Elongate, narrow, rather depressed, reddish-brown, the prothorax slightly suffused with piceous, opaque,
thickly pubescent. Head very closely and somewhat coarsely punctured; eyes moderately large, widely
separated; antenne rather stout, moderately long; prothorax transverse, rather depressed, the sides
straight behind and very gradually narrowing and rounded in front, the hind angles subrectangular, the
disc impressed in the middle before the base, and very distinctly canaliculate, the basal fovee indistinct,
the surface finely and very densely punctured; scutellum closely punctured; elytra long, subparallel to
beyond the middle, a little wider than the prothorax, finely and shallowly punctate-striate, the interstices

HYMENORUS. 429

almost flat and closely, shallowly, and confusedly punctured; beneath closely punctured; legs slender,
ferruginous.

Length 8 millim.; breadth 22 millim.
Hab. Mexico, Cordova (Sallé).

One specimen only, apparently of the female sex. Duller and more depressed than
H. sordidus; the thorax less convex and distinctly canaliculate; the elytra relatively

longer, with shallower strize and more finely punctured interstices; the eyes widely
separated, &c.

9. Hymenorus flohri. (Tab. XIX. fig. 23.)

Moderately elongate, rather depressed, dull brownish-piceous, the elytra slightly shining, thickly pubescent.
Head very closely and finely punctured; eyes rather small, not very widely separated in the male, more
distant in the female; antenne rather short in both sexes, moderately stout, ferruginous ; prothorax
strongly transverse, rather depressed, the sides a little rounded and converging from the base, the hind
angles subrectangular, the disc canaliculate at the extreme base, the basal fove obsolete, the surface
finely and very densely punctured; scutellum closely punctured; elytra moderately long, rather wider
than the prothorax, subparallel in their basal half, finely and deeply punctate-striate, the interstices very
feebly convex and finely and thickly punctured; legs slender, moderately long, ferruginous or fusco-
ferruginous ; anterior and intermediate tarsi with the third and fourth joints, and the posterior tarsi with
the penultimate joint, very feebly lobed beneath.

Length 73-8 millim.; breadth 23-34 millim. (3 9.)

Hab. Mexico, near the city, Yautepec in Morelos (Hége).

Two examples.

10. Hymenorus laticollis.

Moderately elongate, rather depressed, brownish-piceous, slightly shining, thickly pubescent. Head very closely
and coarsely punctured; eyes (¢ ) small, widely separated; antennse ( ¢ ) moderately long, rather slender,
ferruginous ; prothorax large and broad, transverse, the sides expanded and much rounded anteriorly and
almost straight behind, the hind angles obtuse, the lateral margins thin and prominent, the basal foveze
indistinct, the surface very densely and finely punctured, the disc unimpressed but with traces of a smooth
central line; scutellum closely punctured; elytra moderately long, a little wider than the prothorax,
subparallel in their basal half, with rows of fine oblong punctures placed upon very shallow striz, the

interstices flat and closely, confusedly, and not very finely punctured ; legs slender, rather long, ferruginous.

Length 7} millim.; breadth 3 millim. (¢.)

Hab. Mexico (coll. F. Bates).

A single male example. This insect is closely allied to H. flohri, but differs from it
in the more coarsely punctured head, more widely separated eyes in the male, larger
and more expanded thorax, more lightly impressed elytral stria, less finely punctured
interstices, longer legs, and more distinctly lobed tarsi. Labelled Allecula laticollis,
Dej., in Mr. F. Bates’s collection.

11. Hymenorus grandicollis.
Elongate ovate, brownish-black, opaque, thickly pubescent. Head closely and rather coarsely punctured ;
eyes (¢) large, narrowly separated; antenne (<3) moderately long and stout, ferruginous; prothorax

430 HETEROMERA.

large, convex, broader than long, the sides rounded and gradually converging from a little before the base,
the hind angles subrectangular, the basal foves scarcely indicated, the disc unimpressed, the surface finely
and very densely punctured; scutellum closely punctured; elytra moderately long, a little wider than the
prothorax, subparallel in their basal half, with rows of fine punctures placed upon shallow strie, the
interstices almost flat and very shallowly, finely, and thickly punctured; legs ferruginous ; beneath very
closely punctured.

Length 73 millim.; breadth 2? millim.

Hab. Norra America, Arizona.—Mexico, Northern Sonora (Morrison).

Two examples, apparently both males. This insect somewhat resembles H. puncta-
tissimus and H. segnis; but differs from both in its much larger size, less transverse
thorax, longer and stouter limbs, &c., and also from the latter by its more finely
punctate-striate elytra; in its general shape and large eyes it approaches H. occidentalis
&c. The Arizona example has been kindly lent to me for examination by Dr. Horn.

12. Hymenorus segnis.

Elongate, piceous-brown, opaque, densely clothed with short pubescence. Head closely and somewhat coarsely
punctured ; eyes (2 ) rather small, somewhat widely separated ; antennse(@ ) rather short, the joints stout
and short, ferruginous; prothorax transverse, rather convex, the sides rounded and narrowing from a
little before the base, the hind angles rectangular, the base feebly bisinuate, the basal fovez indistinctly
indicated, the surface very densely and finely punctured; scutellum closely punctured; elytra long,
scarcely wider than the prothorax, subparallel in their basal half, shallowly and finely punctate-striate,
the punctures closely placed, the interstices almost flat and very finely and closely punctured; beneath
very closely punctured; legs rather slender, ferruginous.

Length 63-62 millim.; breadth 23 millim. ( 9.)

Hab. Mexico, Acapulco (Hége).

Three examples only. This species somewhat resembles H. grandicollis, but differs
from it in its much smaller, less convex, and widely separated eyes, shorter and stouter
antenne, much more closely and deeply punctured elytral striae, more slender legs,
smaller size, &c. From #7. confertus, Lec., it may be identified by its larger size, more
elongate shape, more finely punctured elytral interstices, less filiform antenne, &c.

13. Hymenorus tibialis. (Tab. XIX. figg. 24, 24a, 3.)
Elongate ovate, dull brownish-piceous, the suture a little lighter, the elytra slightly shining, thickly and
coarsely pubescent. Head closely and rather coarsely punctured; eyes very large, approximate in the
male, very narrowly separated in the female; antenne rather short and stout in both sexes, the third
joint a little shorter than the fourth, ferruginous; prothorax convex, transverse, the sides rounded and
converging almost from the base, the hind angles rectangular, the base strongly bisinuate, the disc
obsoletely canaliculate and shallowly depressed behind, the basal foves very small or indistinct, the
surface finely and very densely punctured; scutellum closely punctured ; elytra scarcely wider than the
prothorax, rather short, subparallel towards the base, finely and rather deeply punctate-striate, the punc-
tures very closely placed, the interstices feebly convex and thickly punctured ; legs rather short, more or
less ferruginous, the first joint of the posterior tarsi longer than the following joints united.

g. Posterior tibie strongly sinuate within. The lateral lobes of the last ventral segment broad and stout,
abruptly bent inwards towards the apex, and with the apices very sharply and acuminately extended
towards each other; the central sheath narrow, the apical portion triangular in shape. (Fig. 24a.)

Length 53-6} millim.; breadth 2-24 millim. (¢ 2.)

HYMENORUS. 431
Hab. Guatemaua, Capetillo (Champion).

Seven examples. A species easily recognized on account of the very large and
approximate eyes and the sinuous posterior tibie in the male. JH. tibialis in its large
eyes resembles H. oculatus, but is much smaller and much less elongate, and also

differs in its shorter legs and antenne; it has the third joint of the antenne slightly
shorter than the fourth in both sexes.

14. Hymenorus hispidulus. (Tab. XX. fig. 1.)

Oblong ovate, brownish-piceous, slightly shining, thickly clothed with long coarse pubescence. Head coarsely
and sparsely punctured, the epistoma smoother; eyes very large, approximate in the male, narrowly
separated in the female; antennz stout, rather short, the joints very little widened towards their apex,
ferruginous ; prothorax transverse, rather convex, the sides rounded and narrowing in front and straight
behind, the hind angles sharply rectangular, the base strongly bisinuate, the basal fovex indistinctly
indicated, the disc unimpressed, the surface densely and somewhat coarsely punctured; scutellum closely
punctured; elytra moderately long, very distinctly wider than the prothorax at the base, rather coarsely
punctate-striate, the interstices feebly convex, flatter on the disc, and sparsely and somewhat coarsely
punctured; beneath sparsely punctured; legs rather stout, ferruginous, the first joint of the hind tarsi
longer than the following joints united.

3. Posterior tibiz feebly sinuate within. Fifth ventral segment shallowly foveolate in the middle. The
lateral lobes of the last ventral segment narrowly separated, parallel, very long and slender, curved a little
downwards, and almost pointed; the central sheath at the extreme apex a little widened and somewhat
broadly rounded. (Fig. 1.)

Length 6-63 millim.; breadth 23-23 millim. (¢ 9.)

Hab. Muxico, Cordova (Sallé), Jalapa (Hage).

Four examples. This insect is distinguished from its allies by the long and coarse
pubescence of the upper surface. It is allied to H. foveiventris (the male characters
being somewhat similar), but is broader, and has larger and more approximate eyes in
the male, much coarser pubescence, stouter legs, and the posterior tibia undilated
within in the male. Worn examples of the female are difficult to distinguish from
the corresponding sex of WH. tibialis; the thorax, however, is more finely and still
more densely punctured and relatively broader in H. tibialis; the males differ
considerably.

15. Hymenorus forreri.

Oblong ovate, dull reddish-brown, suffused above with piceous, the elytra slightly shining, thickly clothed
with long, coarse pubescence. Head sparsely and rather finely punctured; eyes (¢) very large and
approximate; antenne stout, rather short, ferruginous; prothorax transverse, convex, broad, the sides
very strongly rounded and converging from a little before the base, the hind angles subrectangular, the
base rather strongly bisinuate, the surface very densely and somewhat coarsely punctured; elytra
moderately long, as wide as the prothorax at the base, coarsely and deeply punctate-striate, the
interstices rather convex and sparsely and somewhat coarsely punctured; beneath reddish, shining, the
ventral surface sparsely and finely, the metasternum coarsely and more closely, punctured; legs rather
stout, ferruginous, the first joint of the hind tarsi longer than the following joints united.

Length 6 millim.; breadth 23 millim. (¢.)

Hab. Muxtco, Ventanas in Durango (forrer).

432 HETEROMERA.

Closely allied to H. hispidulus; but differing from it in the less coarsely punctured
vertex, the much broader thorax (the sides of which are very strongly rounded), and
the more coarsely punctate-striate elytra, the latter not broader than the thorax at
the base.

Though a single mutilated example only has been received, there can be no doubt
that it represents a distinct species. H. hispidulus is from the Atlantic, H. forreri
from the Pacific, slope.

16. Hymenorus foveiventris. (Tab. XX. figg. 2, 2a.)

Oblong ovate, reddish-brown, slightly shining, densely clothed with short pubescence. Head rather closely
punctured, the vertex coarsely, the epistoma more finely so; eyes large and narrowly separated in the
male, smaller and much more distant in the female; antennz moderately long, rather stout, ferruginous ;
prothorax transverse, rather convex, the sides rounded and narrowing from a little before the base and
straight behind, the hind angles subrectangular, the base rather strongly bisinuate, the basal fovez
indistinctly indicated, the surface coarsely and densely punctured; scutellum closely punctured; elytra
moderately long, a little wider than the prothorax at the base, coarsely punctate-striate, the interstices
slightly convex and sparsely punctured; legs ferruginous, the four hinder tibie almost straight, the basal
joint of the hind tarsi longer than the following three joints united.

¢. Posterior tibie straight, slightly dilated on the inner side behind the middle. Fifth ventral segment with
a deep longitudinal fovea in the middle extending from the apical margin nearly to the base. The lateral
lobes of the last ventral segment narrowly separated, long and very slender, and abruptly curved down-
wards: the central sheath (when viewed laterally) slightly widened at the extreme apex. (Figg. 2, 2 a.)

Length 43-53 millim.; breadth 2 millim. (¢ @.-)

Hab. Guatemata, San Gerénimo (Champion).

Five examples, two of which are males. In general facies this insect resembles
H. sordidus, but it differs from that species in its very much smaller size, shorter elytra,
sparsely punctured interstices, smaller and less acutely triangular apical joint of the
maxillary palpi, and male characters; in the sculpture of the elytra it approaches
H. guatemalensis. The basal joint of the hind tarsi is very long.

A single female example from the same locality differs from the others in being
larger, and in having the thorax relatively larger and broader and more rounded at the
sides, and the elytral interstices more coarsely punctured ; it is probably a variety of the
same species.

17. Hymenorus similis. (Tab. XX. figg. 5, 5a.)

Closely resembling H. fovecventris, and differing as follows:—Smaller and shorter; the eyes more approximate
in both sexes; the prothorax more densely punctured and in consequence duller; the elytra relatively
shorter; the fifth ventral segment unimpressed in the male; the legs more slender; the intermediate and
posterior tibiee slightly sinuate within.

3. Posterior tibie slightly curved. The lateral lobes of the last ventral segment shaped much as in H. fover-
ventris, but more gradually curved downwards; the central sheath with its apical portion rather broad
somewhat spatulate in shape, and not widened at the extreme apex, the latter rounded. (Figg. 5, 5a.)

Length 4-44 millim.; breadth 14-12 millim. (¢ 92.) seve

Hab. Mexico, Ventanas in Durango, Cuernavaca (Hoge).

HYMENORUS. 433

A single male example from Ventanas and a female from Cuernavaca; they appa-
rently represent the sexes of the same species.

18. Hymenorus badius. (Tab. XX. fig. 6.)

Oblong ovate, dull reddish-brown or obscure castaneous, the elytra slightly shining, thickly clothed with short
pubescence. Head coarsely and rather closely punctured; eyes very large and approximate in the male,
a little smaller and narrowly separated in the female; antenne rather stout, moderately long, the joints
not much widened towards their apex, ferruginous ; prothorax transverse, moderately convex, the sides
parallel behind and rounded and narrowing in front, the hind angles rectangular, the base strongly
bisinuate, the surface very densely and coarsely punctured; scutellum closely punctured; elytra mode-
rately long, a little wider than the prothorax at the base, coarsely punctate-striate, the interstices slightly
convex and sparsely and rather coarsely punctured; legs stout, ferruginous, the first joint of the posterior
tarsi longer than the following joints united; beneath shining, the ventral surface fine and rather sparsely,
the sides of the metasternum coarsely, punctured.

¢. Posterior tibie slightly sinuate within. Fifth ventral segment broadly and shallowly depressed in the
centre. Metasternum very closely and finely punctured and pubescent in the middle behind. The lateral
lobes of the last ventral segment very long, narrowly separated, broad and subparallel within for two thirds
of their length, then abruptly narrowed and with the slender apical portion curved a little inwards and
pointed at the end; the central sheath broad, the apex a little widened and rather broadly rounded. (Fig. 6.)

Length 53 millim.; breadth 2} millim. (¢ @.)

Hab. Mexico, Jalapa (Hége).

Four examples, two of which are males. ‘This species is very closely allied to
H. foveiventris: it differs in the eyes being larger and more approximate in both sexes
(especially noticeable in the male), and in the more densely punctured and duller
thorax, and the stouter legs; and also in the fifth ventral segment being unimpressed,
the posterior tibie merely a little sinuous within, and the lateral lobes of the last
ventral segment very differently shaped, in the male.

19. Hymenorus rufescens. |

Oblong ovate, dull reddish-piceous, the elytra slightly shining, thickly clothed with short pubescence. Head
finely and closely punctured in front, coarsely so on the vertex; eyes very large and approximate in the
male, a little smaller and very narrowly separated in the female; antenne ferruginous, rather long and
stout, reaching to the first third of the elytra and with the joints distinctly widened towards their apex in
the male, more filiform in the female; prothorax transverse, rather convex, the sides parallel behind and
narrowing and rounded in front, the hind angles rectangular, the base strongly bisinuate, the basal fovex
very shallow but distinct, the lateral margins prominent and somewhat extended, the surface densely and
rather coarsely punctured; scutellum closely punctured; elytra scarcely or very little wider than the pro-
thorax at the base, moderately long, lightly and rather finely punctate-striate, the interstices almost flat
and finely and somewhat closely punctured; legs ferruginous, the tibiz almost straight, the first joint of
the hind tarsi longer than the following joints united.

¢g. Posterior tibiz very slightly sinuate within. The lateral lobes of the last ventral segment rather stout,
abruptly bent inwards towards the apex and with the apices acuminately extended towards each other; the
central sheath narrow, the extreme apex widened out and somewhat spoon-shaped.

Length 51-53 millim.; breadth 2-2; millim. (¢ 2.)

Hab. Mexico, Jalapa (Hoge), Temax in N. Yucatan (Gawmer).

Four examples. This species comes very close to H. badius and H. foveiventris, but
it differs from both in the more finely and more lightly impressed elytral strie and flatter
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3 KK

434 HETEROMERA.

interstices; the head and eyes are formed as in H. badius, but the antenne in the male
are longer. The cedeagus also differs in structure from that of either of the first-
mentioned species. From ZH. hispidulus the shorter pubescence, the more finely and
more densely punctured and relatively broader thorax, and the differently shaped
cedeagus sufficiently distinguish it. The lateral lobes of the last ventral segment are
formed very much as in ZH. tibialis.

20. Hymenorus igualensis.

Closely resembling H. rufescens, and differing as follows :—Broader and more ovate, opaque, reddish-brown ; the
eyes very large and narrowly separated; the prothorax more densely punctured ; the elytral interstices
broader and flatter and more distinctly punctured; the legs stouter; the rest as in 1. rufescens.

Length 52 millim.; breadth 21 millim. ( 9.)

Hab. Mexico, Iguala in Guerrero (/ége).

A single example, undoubtedly distinct from A. rufescens.

21. Hymenorus longicollis. (Tab. XX. fig. 3, ¢ .)

Elongate, narrow, reddish-brown, dull, thickly clothed with fulvous pubescence. Head closely and not very
finely punctured; eyes (¢) large but rather narrow, narrowly separated; antenne ( 3) short and stout,
ferruginous; prothorax elongate, only a little broader than long, convex, the sides parallel and almost
straight from the base to beyond the middle and rounded and but very little narrowed in front, the hind
angles rectangular, the base rather strongly bisinuate, the surface unimpressed and densely and somewhat
coarsely punctured; scutellum closely punctured; elytra long, very little wider than the prothorax,
lightly punctate-striate, the punctures oblong in shape and not very closely placed, the interstices almost
flat, closely punctured on the basal half and sparsely so beyond ; legs short, ferruginous; the first joint
of the hind tarsi rather short, about as long as the following joints united.

Length 53 millim.; breadth 2 millim. (<.)

Hab. Mexico, Vera Cruz (Hége).

A single male example. This insect may be readily identified by its elongate, narrow
shape and comparatively very long thorax.

22. Hymenorus castaneus.

Elongate ovate, rather narrow, dull castaneous, the elytra slightly shining, thickly clothed with short pubes-
cence. Head closely and rather finely punctured; eyes (¢ ) large, rather narrowly separated ; antenne .
(3) stout, moderately long, ferruginous; prothorax broader than long, convex, the sides parallel behind
and rounded and narrowing in front, the hind angles rectangular, the base rather strongly bisinuate, the
surface very densely and somewhat coarsely punctured; scutellum closely punctured ; elytra moderately
long, a little wider than the prothorax at the base, subparallel in their basal half, finely and shallowly
punctate-striate, the punctures oblong in shape and approximate, the interstices almost flat and closely
punctured ; legs ferruginous, short, and rather stout, the four hinder tibise straight ; beneath closely and
coarsely, the ventral surface more sparsely, punctured.

Length 54 millim.; breadth 2} millim. (<¢.)

Hab. Mexico, Ventanas in Durango (Hage).

A single male example. In its general shape this species is intermediate between
H. igualensis and H. longicollis, though perfectly distinct from either.

HYMENORUS. 435

23. Hymenorus depressus.

Elongate, depressed, pitchy-testaceous, dull, thickly clothed with short pubescence. Head closely and not very
finely punctured ; eyes large, narrowly separated; antenne short, the joints not much widened towards
their apex, testaceous; prothorax broader than long, the sides almost straight behind and broadly rounded
and narrowing in front, the hind angles subrectangular, the disc slightly depressed in the middle behind,
the base feebly bisinuate, the surface finely and very densely punctured; elytra long, a little wider than
the prothorax at the base, subparallel in their basal half, shallowly and rather finely punctate-striate, the
punctures oblong in shape, the interstices finely and closely punctured ; legs slender, the first joint of the
hind tarsi longer than the following joints united; beneath sparsely punctured.

Length 5} millim.; breadth 2 millim.

flab. Mexico, Chilpancingo in Guerrero (Hége).

A single example, apparently a female. This insect very closely resembles the
Californian H. confertus, Lec.; but may be at once distinguished from it by the
larger and narrowly separated eyes (in H. confertus the eyes are widely separated, even
in the male), and the less approximate and coarser punctures of the elytral striz.

24. Hymenorus colonoides. (Tab. XX. fig. 4.)

Oblong ovate, rather convex, piceous-brown, opaque, densely pubescent. Head closely and coarsely punctured,
the anterior half and the oral organs ferruginous; eyes moderately large, transverse, about equally and
not very widely separated in either sex; antennz short and stout in both sexes, ferruginous; prothorax
broad, transverse, convex, the sides much rounded and converging from a little before the base, the base
strongly bisinuate (the median lobe in consequence well defined), the hind angles subrectangular, the
surface very densely and rugulosely punctured and almost unimpressed ; scutellum very closely punctured ;
elytra moderately long, the width of the prothorax at the base (the sides forming almost a continuous
outline with the prothorax), with rows of oblong moderately coarse punctures placed upon rather shallow
strie, the interstices almost flat and finely and closely punctured ; legs short, ferruginous, the four hinder
tibiee straight and similar in both sexes, the first joint of the hind tarsi not longer than the following
joints united.

Length 43-5} millim.; breadth 2-23 millim. (d 9.)

Hab. Mexico, Guanajuato (Sallé), Atlixco, Matamoros Izucar, Jalapa (Hoge); Gua-
TEMALA, Duefias (Champion).

Numerous examples. Compared with H. americanus this species is easily distin-
guished by the eyes being larger, more transverse, and less widely separated in both
sexes ;‘ the thorax broader, as wide at the base as the elytra, the surface more densely
and more coarsely punctured, and the base strongly bisinuate; the elytral strize more
finely and more closely punctured, and the interstices rather flatter. This insect has

much the facies of a species of Colon.

95. Hymenorus brevipes. (Tab. XX. fig. 7, 6.)

Closely resembling H. colonoides, and differing as follows:—Shorter and rather more convex; the eyes (¢)
smaller and much more widely separated; the antenne (¢) much shorter, with the joints more widened
towards their apex: the prothorax shorter and broader, more strongly transverse, still more rounded
at the sides, the base strongly bisinuate and with the median lobe very prominent, the surface not quite

3 KK 2

436 HETEROMERA.

so densely punctured; the elytra relatively shorter, the strie more deeply impressed, the interstices
closely punctured ; the legs stouter and much shorter; the rest much as in H. colonoides.
Length 43 millim.; breadth 2 millim. (¢.)

Hab. Mexico, Iguala in Guerrero (/6ge).

Though we have only a single example of this insect there can be no doubt of its
specific distinctness.

26. Hymenorus torridus.

Nearly allied to H. colonoides, and differing as follows:—Rather more convex; the eyes much larger and much
more approximate than in the male of H. colonoides; the antenns much longer, with the joints more
elongate; the prothorax similarly shaped and sculptured, the base very strongly bisinuate; the elytra
more coarsely and deeply punctate-striate, the interstices closely and not so finely punctured; the first
joint of the hind tarsi more elongate, longer than the following joints united.

Length 5% millim.; breadth 23 millim.

Hab. Muxico, Acapulco (Hége).

One example, apparently a female.

27. Hymenorus angustatus.

Oblong ovate, rather narrow, brownish-piceous, subopaque, thickly clothed with short pubescence. Head
closely and rather coarsely punctured, the anterior half and the oral organs ferruginous; eyes moderately
large, equally and somewhat widely separated in both sexes; antennz rather stout, the joints considerably
thickened towards their apex and moderately long, piceo-ferruginous, the two basal joints lighter; pro-
thorax transverse, rather convex, the sides much rounded though parallel towards the base, the basal
fovesw indistinctly indicated, the hind angles rectangular, the base strongly bisinuate, the surface very
densely and finely punctured; scutellum closely punctured; elytra rather long, subparallel in their basal
half, the width of the prothorax at the base, finely and lightly punctate-striate, the punctures closely
placed, the interstices flat and very closely and finely punctured; legs short, ferruginous, the tibiz a little
darker, the first joint of the hind tarsi the length of the following joints united.

Length 51-6 millim.; breadth 2-23 millim. (¢ 9.)

Hab. Guatemana, San Gerénimo (Champion).

Four examples. Narrower, duller, and more parallel than H. emmenastoides; the
eyes larger and more narrowly separated in both sexes; the sides of the thorax
straighter behind, the surface still more densely and more finely punctured ; the elytral
strie more lightly impressed and more finely punctured. From Z. colonoides, to which
it is much more closely allied, it may be distinguished by its longer and more parallel
elytra, and longer antenne and legs; the head and eyes are formed much as in
H. colonoides, but the latter are more widely separated.

28. Hymenorus emmenastoides.

Oblong ovate, brownish-piceous, slightly shining, thickly clothed with short pubescence. Head closely and
somewhat coarsely punctured, the vertex more coarsely so, the anterior half and the oral organs ferru-
ginous ; eyes small and widely and equally separated in both sexes; antenne short in both sexes, rather
slender, ferruginous ; prothorax transverse, rather convex, the sides rounded and converging from the base,
the hind angles subrectangular, the base strongly bisinuate, the basal fovesx feebly indicated, the surface

HYMENORUWS. 437

densely and not very finely punctured; scutellum closely punctured ; elytra moderately long, the width of
or very little wider than the prothorax at the base, with rows of moderately coarse punctures placed upon
shallow striw, the punctures closely placed, the interstices almost flat or very feebly convex and finely and
rather closely punctured ; legs short and rather slender, ferruginous.
Length 53-63 millim.; breadth 2-2! millim. (3 Q.)
Hab. Mexico, Jalapa (Hoge); Guatemata, Ostuncalco 7500 feet, Calderas, slopes of
the Volcan de Fuego above Capetillo (Champion).

_ Many examples. This insect is not uncommon in the Los Altos region of Guatemala ;
it is distinguished from the preceding species by its small eyes, slightly shining surface,
and by the sides of the thorax converging from the base. Two examples only have
been received from Mexico. As in several of the allied species the sexes are scarcely
distinguishable by external characters.

29. Hymenorus punctatissimus.
Hymenorus punctatissimus, Lec. New Sp. Col. p. 188 (1866) '.

Hab. Nortu America, Arizona !—Mextco, Northern Sonora (Morrison).

From the late Mr. Morrison we have received three perfectly distinct species under
the above name. One of these, represented by two male examples, is undoubtedly
H. punctatissimus; the other two are here described under the names of Z. ruficollis
and fH. deplanatus. ‘The two examples mentioned have the thorax exceedingly densely
and finely punctured; and the elytra with very shallow and very finely punctured strie,
the interstices very closely and finely punctured, the punctures very little coarser than
those of the striz.

30. Hymenorus maritimus.

Oblong, piceous with a slight bronzy tinge, the prothorax sometimes very narrowly and indistinctly ferruginous
at the sides and base, the head ferruginous in front, slightly shining, thickly clothed with long ashy
pubescence. Head somewhat coarsely and closely punctured ; eyes rather small, somewhat widely sepa-
rated; antenne short and stout in both sexes, the joints short and thickened towards their apex, brownish-
black, the two basal joints ferruginous; prothorax broader than long, the sides rounded and converging
anteriorly and almost straight behind, the base feebly bisinuate, the hind angles rectangular, the disc obso-
letely canaliculate behind, the surface densely and not very finely punctured ; scutellum closely punctured ;
elytra rather short, about as wide as the prothorax, subparallel in their basal half, shallowly and rather
finely punctate-striate, the interstices finely and closely punctured ; legs short, ferruginous, the tibic some-
times a little darker; apical joint of the maxillary palpi brownish-black.

Length 44-44 millim.; breadth 1? millim. (¢ @.)

Hab. Guatemaua, Champerico (Champion).

Four examples of this distinct insect were captured by myself on the Pacific coast at
Champerico. HH. maritimus is one of the smallest of the Central-American species, and
may be recognized by its narrow and somewhat parallel shape, rather short elytra, and
slight bronzy tint.

438 HETEROMERA.

31. Hymenorus americanus.

Oblong ovate, brownish-piceous or obscure reddish-brown, the prothorax usually of a more reddish tint and sub-
opaque, the elytra a little more shining, thickly clothed with short pubescence. Head closely and coarsely
punctured, the vertex still more coarsely so; eyes small and widely separated in both sexes ; antenne
short and stout, the joints short and very distinctly widening towards their apex, ferruginous ; prothorax
transverse, rather convex, the sides straight behind and rounded and narrowing in front, the hind angles
rectangular, the basal fovee indistinctly indicated, the base rather strongly bisinuate, the surface densely
and finely punctured ; scutellum closely punctured; elytra a little wider than the prothorax at the base,
rather short, finely and shallowly punctate-striate, the interstices almost flat and closely punctured ; legs
short, ferruginous, the first joint of ‘the hind tarsi rather shorter than the following joints united.

3g. Fifth ventral segment shallowly foveolate in the middle.

Length 43-5§ millim.; breadth 17-23 millim. (¢ @.)

Hab. Mexico (coll. F. Bates), Colima city, Chilpancingo, Jalapa (Hodge) ; GUATEMALA,

Rio Naranjo, Zapote (Champion); Nicaragua, Granada (Sallé).

This is one of a group of numerous species inhabiting the southern United States,
Mexico, Guatemala, and Nicaragua, but not known to me from further south. Three
only (H. confertus, H. densus, and H. punctatissimus, Lec., all from the southern United
States) have been hitherto described. From H.densus the present species may be sepa-
rated by its broader and more transverse thorax (the sides of which are more rounded)
and entirely ferruginous antenne; from H. confertus (a Californian male example of
which, determined by Leconte himself, is before me) by its shorter and stouter antenne
(the joints of which are more serrate in shape), more coarsely punctured vertex, shorter
and rather more coarsely punctate-striate elytra, and more ovate shape; and from
H. punctatissimus by the more coarsely punctured thorax. The single example in
Mr. F. Bates’s collection is labelled H. confertus, Lec. Guatemalan examples have the
vertex still more coarsely punctured, but intermediate forms occur. All these species
have small and widely separated eyes in both sexes, a densely punctured thorax, finely
punctate-striate elytra (the interstices of which are almost flat and closely punctured),
and a subopaque surface.

32. Hymenorus densus.
Hymenorus densus, Lec. New Sp. Col. p. 188 (1866) °.

Hab. Norru America, Florida 1, Texas.—Mexico, Vera Cruz (Sallé).

A single example from Vera Cruz in the Sallé collection agrees well with others from
Texas and Florida. This species may be distinguished from the allied forms by its
rather long, coarsely and densely punctured, reddish thorax, the sides of which are
parallel behind and gradually narrowed and rounded in front, and by its antenne being
fusco-ferruginous with the two basal joints red.

33. Hymenorus ruficollis. (Tab. XX. fig. 8.)

Oblong ovate, brownish-piceous, the head and thorax more or less red, very dull and opaque, thickly clothed
with short pubescence. Head closely and coarsely punctured ; eyes small and widely separated in both

HYMENORUS. 439

sexes ; antenne short and stout, the joints very distinctly widened towards their apex, ferruginous, the
intermediate joints sometimes a little darker ; prothorax transverse, moderately convex, the sides con-
verging from a little before the base and rounded and narrowing in front, the hind angles rectangular,
the base feebly bisinuate, the basal fovez scarcely indicated, the surface very densely and rugosely punc-
tured; scutellum closely punctured ; elytra very little wider than the prothorax at the base, rather short,
finely punctate-striate, the interstices flat and closely punctured ; beneath shining, reddish, the venter
more or less piceous, rather closely and coarsely punctured, the fourth and fifth ventral segments much
smoother ; legs short, ferruginous, the first joint of the hind tarsi scarcely so long as the following joints
united.
Length 42-53 millim.; breadth 2-24 millim. (¢ 2.)

Hab. Mexico, Northern Sonora (Morrison).

Numerous examples. Duller than H. densus; the head more closely punctured ;
the eyes smaller and more widely separated in both sexes; the antenne entirely ferru-
ginous; the thorax rather more rounded at the sides, much more densely punctured,
and with the hind angles not so sharp.

34. Hymenorus guatemalensis. (Tab. XX. fig. 9.)

Oblong ovate, rather convex, varying in colour from light reddish-brown to brownish-piceous, shining, thickly
clothed with short pubescence. Head closely and rather coarsely punctured; eyes small, widely separated
in both sexes ; antenne slender, moderately long, the third joint a little longer than the fourth, ferrugi-
nous ; prothorax short, transverse, rather convex, the sides moderately rounded and converging from the
base, the hind angles rectangular, the base rather strongly bisinuate, the basal fovez indistinctly indicated,
the disc shallowly transversely impressed behind, the surface densely and somewhat coarsely punctured ;
scutellum closely punctured; elytra wider than the prothorax at the base, rather long, coarsely punctate-
striate, the interstices feebly convex and sparsely and comparatively coarsely punctured ; legs rather long
and slender, ferruginous.

Length 64-62 millim.; breadth 2}-23 millim. (¢ 9.)

Hab. GvuatTEMALA, Cerro Zunil, Duefias, Capetillo (Champion).

Many specimens. This species, on account of the shining surface, coarsely-sculptured
elytra, slender antenne, and the shape of the thorax (the sides rapidly converging from
the base), has a different facies from most of the allied forms.

35. Hymenorus pallidus.

Oblong ovate, dull reddish-testaceous, the elytra slightly shining, thickly clothed with short pubescence. Head
closely and coarsely punctured, the vertex more coarsely so; eyes small and widely separated in both
sexes; antenne stout, the joints rather long, and very little widened towards their apex, the third joint a
little longer than the fourth, testaceous ; prothorax short, transverse, not very convex, the sides mode-
rately rounded and gradually narrowing from the base, the hind angles sharply rectangular, the base
rather strongly bisinuate, the dise broadly and shallowly transversely impressed behind, the basal fovez
indistinct, the surface very densely and rugulosely punctured ; scutellum closely punctured ; elytra wider
than the prothorax at the base, moderately long, coarsely punctate-striate, the interstices slightly convex
and closely and rather finely punctured ; legs testaceous.

Length 53-6 millim.; breadth 23-25 millim. (dQ .)

Hab. Mexico, Ventanas in Durango, Acapulco and Chilpancingo in Guerrero (Hdge).

Numerous examples. This insect is allied to H. guatemalensis ; but differs from it in

440 HETEROMERA.

its stouter antenne, dull and much more densely punctured thorax, shorter elytra, and
more closely and more finely punctured interstices. In both species the elytra are very
distinctly wider than the prothorax at the base. The comparatively small and narrow
thorax will distinguish H. pallidus from the other species with small eyes in both

sexes.

86. Hymenorus villosus. (Tab. XX. fig. 10, 2.)

Oblong ovate, rather convex, light reddish-brown, the head and elytra shining, the prothorax duller, thickly.
clothed with long erect fulvous hairs. Head closely and coarsely punctured; eyes ( Q ) rather small,
widely separated ; antenne stout, rather short, ferruginous ; prothorax convex, transverse, the sides very
gradually converging from the base and rounded in front, the hind angles subrectangular, the base very
feebly bisinuate, the surface unimpressed and densely and rugosely punctured, the punctures here and
there longitudinally confluent ; scutellum closely and finely punctured ; elytra rather long, distinctly wider
than the prothorax at the base, coarsely and deeply punctate-striate, the interstices convex and sparsely
and coarsely punctured; beneath sparsely and coarsely punctured; legs rather stout, ferruginous.

Length 7 millim.; breadth 3 millim. ( 2.)

Hab. Mexico, Cuernavaca in Morelos (Hdége).

One example. This species is at once distinguished from all others of the genus by
its densely villose surface ; it has the base of the thorax very feebly bisinuate.

87. Hymenorus parvicollis. |

Elongate, rather narrow and depressed, piceous-brown, slightly shining, somewhat thickly clothed with short
pubescence. Head (including the vertex) closely and rather coarsely punctured ; eyes (¢) small, widely
separated ; antennx ( ) rather long and slender, fusco-ferruginous ; prothorax small and narrow, strongly
transverse, the sides almost straight behind and a little narrowed and rounded in front, the hind angles
rather obtuse, the disc shallowly transversely impressed behind, the base feebly bisinuate, the surface
densely and rather coarsely punctured ; scutellum closely punctured ; elytra long, considerably wider than
the prothorax at the base, subparallel in their basal half, rather coarsely (but shallowly) punctate-striate,
the interstices flat and somewhat closely punctured; beneath very sparsely and finely punctured, the sides
of the metasternum more coarsely so; legs slender, ferruginous, the basal joint of the hind tarsi the length
of the following joints united, the tibie straight.

Length 42 millim.; breadth 13 milim. (¢.)

Hab. Mexico, Ventanas in Durango 2000 feet (Hoge).

One immature male example. This small species is not very closely allied to any
other noticed here ; it somewhat approaches LH. guatemalensis and IT. pallidus.

88. Hymenorus deplanatus. (Tab. XX. fig. 11, ¢.)

Elongate, narrow, depressed, brownish-piccous, dull, thickly clothed with short pubescence. Head finely and
closely punctured, the intraocular space and the vertex sparsely and more coarsely so; eyes small and
widely separated in both sexes; antennz rather short, not longer in the male, the joints very little
widened towards their apex, ferruginous; prothorax transverse, the sides parallel behind and rounded and
slightly narrowed in front, the hind angles subrectangular, the basal fovez indistinctly indicated, the base
feebly bisinuate, the surface finely and very densely punctured ; scutellum closely punctured ; elytra long,

a little wider than the prothorax at the base, the sides almost straight from the base to the middle, finely

and closely punctate-striate, the interstices flat and finely and closely punctured; beneath sparsely and
tinely punctured, the metasternum at the sides much more coarsely so and in the middle (in both sexes)

HYMENORUS.—POLYIDUS. 441

deeply canaliculate and very closely and finely punctured ; legs moderately slender, stouter in the male,
ferruginous, the first joint of the hind tarsi the length of the following joints united.

3. Intermediate and posterior tibie curved, the former strongly and abruptly widened on the inner side
at the apex and the latter sinuous within. The lateral lobes of the last ventral segment slightly curved,
broad at the base, and gradually narrowing outwardly.

Length 5 millim.; breadth 12 millim. (¢ 9.)

Hab. Mexico, Northern Sonora (Morrison).

Two examples. In its small size and depressed form this species resembles H. parvi-
collis, from which it differs in its opaque surface, longer thorax, closer punctuation,
different male characters, &c. |

39. Hymenorus corticarioides.

Oblong ovate, reddish-testaceous, opaque, thickly clothed with short pubescence. Head closely and finely
punctured ; eyes (2) small and widely separated; antenne (2) short and stout, the joints not much
widened towards their apex, testaceous; prothorax transverse, rather convex, the sides straight behind
and rounded and narrowing in front, the hind angles rectangular, the base feebly bisinuate, the surface
unimpressed and densely and finely punctured ; scutellum closely punctured ; elytra a little wider than
the prothorax at the base, rather short, coarsely punctate-striate, the interstices slightly convex and finely
and closely punctured ; legs testaceous, rather short, the first joint of the posterior tarsi not longer than
the following joints united.

Length 43-43 millim.; breadth 13-12 millim. ( 9.)

Hab. Mexico, Acapulco, Colima city (Hoge).

Two female examples. This is the smallest Central-American representative of the
genus; it is not very nearly allied to any other species here enumerated, though perhaps
nearest to H. pallidus.

POLYIDUS.

Last joint of the maxillary palpi broadly triangular, its apical side rather longer than the outer side, the
corresponding joint of the labial pair broad; mandibles truncate at the apex; head broad, deeply sunk
into the prothorax, almost vertical in repose ; eyes small and transverse, widely separated in both sexes ;
antennee long and subfiliform, reaching nearly to the middle of the elytra in the male, the joints a little
widened towards their apex in the female, 3-11 about equal in length ; prothorax twice as broad as long,
the sides rounded and rapidly converging from the base, the base feebly bisinuate; scutellum broad,
transversely triangular; elytra rather short, the sides a little rounded and forming a continuous line with
the prothorax, punctate-striate ; prosternum abruptly declivous behind; mesosternum longitudinally and
convexly raised between the intermediate coxe, its anterior face vertical ; intercoxal process moderately
broad; legs rather short; the third and fourth joints of the anterior and intermediate and the penulti-
mate joint of the posterior tarsi in the male, and the penultimate joint of all in the female, rather broadly
lobed beneath ; the first joint of the hind tarsi short, shorter than the following joints united; claws
pectinate ; body broadly ovate, convex, winged, thickly pubescent.

This genus resembles Menes, but differs from it in its longer legs, long and more filiform
antenne, and differently-formed mesosternum. Polyidus may be readily separated from
all other genera of Cistelide here enumerated by the shape of the mesosternum ; in
general form it is almost intermediate between Menes and certain Jsomira, e. g. I. obso-
leta. The single species referred to it is from Guatemala and South-western Mexico.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3 LL

442 HETEROMERA.

1. Polyidus meridionalis. (Tab. XX. figg. 18, 13¢, 3; 18a, labium; 13 8,

maxilla and maxillary palpus.)

Brownish-piceous, slightly shining, thickly clothed with long pubescence. Head closely and rather coarsely
punctured; antenne ferruginous or fusco-ferruginous, the third and fourth joints equal in length ; pro-
thorax convex, the basal fovew scarcely indicated, the hind angles subrectangular, the disc unimpressed,
the surface somewhat coarsely, closely, and uniformly punctured; scutellum closely and finely punctured ;
elytra with rows of coarse punctures placed upon shallow striz, the strie becoming deeper towards the
sides and apex, the interstices broad and almost flat on the disc and feebly convex laterally and towards
the apex; beneath sparsely and rather coarsely punctured, the metasternum and side-pieces very coarsely
so, the flanks of the prothorax almost smooth ; legs rather slender, fusco-ferruginous, the tibie similar in
both sexes.

g. The lateral lobes of the last ventral segment slightly curved, the apices blunt and clothed with long fine
hairs ; the central sheath narrow and acuminate. (Fig. 13.)

Length 74-8} millim. ; breadth 33-4 millim. (¢ 9.)

Hab. Muxtco, Tapachula in Chiapas (Hége); Guaremata, El Reposo 800 feet
(Champion).

Four examples from Guatemala and one from Mexico, all captured on the lower
part of the Pacific slope and at localities not very far distant from each other.

MENES.

Last joint of the labial palpi broad ovate, broadly truncate at the apex; last joint of the maxillary palpi
broadly triangular, its apical side the longest; mandibles very feebly bifid at the apex; antenne stout,
rather short, the joints widening a little towards their apex in both sexes—3 distinctly longer than 4,
6-11 about equal in length; head broad; eyes small, very widely separated ; prothorax very broad and
short, about twice as broad as long, much rounded at the sides, transversely convex, unimpressed, the base
very feebly bisinuate, the hind angles very obtuse; scutellum strongly transverse, triangular; elytra
short, broad, the sides almost forming (when viewed from above) a continuous outline with the equally
broad prothorax; legs very short and stout, thickly pubescent; anterior and intermediate tarsi with the
third and fourth joints, and the posterior tarsi with the penultimate joint, broadly lobed beneath, the first
joint of the latter short ; claws pectinate ; prosternum abruptly declivous behind ; metasternum very short ;
intercoxal process broad ; body short ovate, broad, convex, thickly pubescent, winged.

This very distinct genus contains two species from Mexico. The very short ovate,
convex shape and short legs give Menes quite a different facies from any of the previously
described members of this family. In its broad intercoxal process Menes approaches
the ‘ Lystronychides’; but it is clearly more nearly allied to Polyidus, Hymenorus, &c.

The sexes are scarcely distinguishable by external characters. The wings are small and
apparently not adapted for flying.

1. Menes meridanus. (Tab. XX. fig. 12.)

Brownish-black, slightly shining, somewhat thickly pubescent. Head closely and rather coarsely punctured ;
prothorax closely punctured, the punctures fine on the disc and becoming coarser towards the sides ;
scutellum closely and finely punctured; elytra deeply striate, the striz with coarse, oblong, rather
distantly placed impressions, the interstices feebly convex, flatter on the basal half of the disc, and finely
and thickly punctured ; beneath more shining, closely and coarsely punctured, the metasternum with
exceedingly coarse impressions ; legs and antenn ferruginous or fusco-ferruginous.

Length 64-7 millim.; breadth 33-33 millim.

MENES.—MEN(CECEUS. 443

Hab. Muxico, Merida in Yucatan (Hoge), Temax in N. Yucatan (Gawmer).

Apparently a common insect in Yucatan, whence we have received about 100
examples.

2. Menes rotundatus.

Piceous-brown, opaque, very thickly pubescent. Head closely and rugulosely punctured ; eyes smaller than in
M. meridanus, and still more widely separated ; prothorax densely and rugulosely punctured ; elytra rather
deeply striate, the strie with oblong, moderately coarse, and somewhat closely placed impressions, the
interstices slightly convex and very closely and subasperately punctured; beneath coarsely and closely

punctured, the metasternum with exceedingly coarse impressions ; legs and antenn ferruginous or fusco-
ferruginous.

Length 43-54 millim.; breadth 24-3 millim.
Hab. Mexico (Flohr, coll. F. Bates), Jalapa (Hoge).

Numerous examples. Smaller and shorter than M. meridanus; the upper surface
opaque, rugulosely punctured, and more thickly pubescent; the elytral striz less
coarsely punctured ; the eyes smaller and more widely separated, &c. In unabraded
specimens the pubescence is so close as to partly hide the sculpture.

MENCECEUS.

Last joint of the maxillary palpi broadly triangular, its apical side rather longer than the outer side; last
joint of the labial palpi broad and subsecuriform ; mandibles subtruncate ; head very short and broad,
deeply inserted, vertical in repose ; eyes large and transverse, convex, narrowly separated in both sexes ;
antenne stout, joints 3 and 4 about equal in length (very broadly and irregularly dilated in the male of
M. crassicornis) ; prothorax convex, very large and broad, nearly twice as broad as long, the sides rounded
and greatly expanded and rapidly converging from the base, the hind angles very prominent and rather
sharp, projecting laterally a little beyond the base of the elytra, and extending backwards, the base
bisinuate ; scutellum rather large, transversely scutiform; elytra moderately long, narrower than the
prothorax at the base, very slightly rounded at the sides and widest a little before the middle, finely
punciate-striate ; prosternum subhorizontal and very slightly and convexly produced (M. crassicornis), or
convex and abruptly declivous behind (J. equalis, M. tewanus) ; epipleure broad at the base; flanks of
the prothorax deeply concave behind; legs rather short, pubescent ; the penultimate joint of all the tarsi
distinctly lobed beneath in both sexes, the first joint of the posterior pair rather longer than the following
joints united; tibie similar in both sexes; the four hinder femora somewhat flattened ; claws pectinate ;
body oblong ovate, winged, pubescent.

This genus includes three species—two from Mexico or Guatemala and one from
Texas. Meneceus is no doubt closely allied to Hymenorus, but it is easily separated
from it by the very short and greatly dilated thorax, the hind angles of which extend
laterally beyond and are incumbent upon the shoulders of the elytra, and the short
broad‘head. JW. crassicornis has the third and fourth joints of the antenne distorted
and dilated in the male, and the prosternum slightly produced. MM. equalis approaches
certain Hymenori (e.g. H. emmenastoides), but has a differently shaped head.

The lateral lobes of the last ventral segment in the male are spoon-shaped or spatu-
late in all three species.

3 LL 2

444 HETEROMERA.

* Prosternum subhorizontal, the apex slightly produced ; antenne with joints 3
and 4 broadly dilated in the male.

1. Meneceus crassicornis. (Tab. XX. figg. 14, 144, ¢.)

Oblong ovate, moderately convex, reddish- or piceous-brown, dull, thickly pubescent. Head rather sparsely
and somewhat coarsely punctured, the anterior half a little smoother; antenne rather long and stout,
reaching beyond the first third of the elytra in the male, ferruginous, joints 3 and 4 greatly dilated in the
male, 3 a little longer than 4 in the female; prothorax moderately convex, densely and somewhat coarsely
punctured, the disc almost unimpressed, the basal fovee feebly indicated or obsolete; scutellum very
closely punctured ; élytra finely punctate-striate, the punctures oblong in shape and approximate, the
interstices almost flat and rather thickly and not very finely punctured ; beneath more shining, the pro-
thorax in front, the mesothorax, the epipleur, and the metasternal side-pieces very closely and somewhat
coarsely punctured; the mesosternum with coarse scattered impressions in front, smooth behind, the
central part finely and rather closely punctured; the ventral surface with fine and very widely scattered
punctures, the fifth segment unimpressed in the male; legs ferruginous.

dé. Antenne with joint 3 very broadly and triangularly dilated ; 4 distorted, as long as and rather broader
than 8, thickened beneath, and widening outwardly ; 5 rather narrower than 4, broader than long ; 6 about
as long as broad and narrower than 5; 7-11 decreasing in width, but increasing in length.

Length 6-73 millim.; breadth 23-31 millim. (¢ @.)

Hab. Mexico, Matamoros Izucar and Atlixco in Puebla, Cuernavaca and Yautepec in
Morelos, Jalapa, Acapulco (Hége); GuateMALa, Capetillo, Duefias (Champion).

Numerous examples, five of which are males. The male of this insect is one of the
most remarkable of the Central-American forms of Cistelide.

** Prosternum convex, declivous behind ; antenne simple in the male.

2. Menceceus eequalis. (Tab. XX. figg. 15,15 ¢, ¢; 15 a, labium ; 15 0, maxilla
and maxillary palpus.)

Oblong ovate, moderately convex, dull brownish-black, thickly pubescent. Head sparsely and finely punctured ;
eyes (d) very narrowly separated ; antenne rather short, not reaching to the first fourth of the elytra in
the male, joints 3 and 4 equal in length, fusco-ferruginous ; prothorax convex, finely, shallowly, and
somewhat densely punctured, the disc very shallowly longitudinally impressed in the middle behind, the
basal foveee scarcely indicated ; scutellum closely punctured ; elytra finely punctate-striate, the interstices
flat and finely and rather closely punctured; beneath punctured as in WM. crassicornis; legs stout, fusco-
ferruginous.

Length 84-93 millim.; breadth 35-43 millim. (¢.)

Hab. Mexico, Cordova (Hoge).

Two examples, apparently both males. Larger and longer than I. crassicornis; the
eyes more narrowly separated and the antenne simple in the male; the thorax more
convex and more finely and much less densely punctured; the prosternum differently
shaped, &c.

The Texan species belongs to this section, and I give below a short description
of it *.

* Meneeceus texanus.
Ovate, rather broad, piceous-brown, dull, thickly pubescent. Head sparsely and rather coarsely punctured ;

DIOPENUS. 445

DIOPGENUS.

Last joint of the maxillary palpi broadly triangular, its apical and outer sides about equal; last joint of the
labial palpi broad ovate, broadly truncate at the apex; mandibles at the apex narrow and very feebly
bifid; head very short and broad, deeply and obliquely inserted beneath the anterior edge of the
prothorax, and invisible from above; eyes very large and transverse, convex, very narrowly separated ;
antenne stout, much compressed, short, reaching a little beyond the base of the prothorax, the joints
closely articulated, broad at their base, and each widening a little outwardly—1 short and stout, 2 small,
strongly transverse, 3 subtriangular, twice as long as 2, 4—8 gradually increasing in length and breadth,
4 a little longer and broader than 3, 9 and 10 each the length of but narrower than 8, 11 longer and
much narrower than 10 and very obliquely truncate at the apex; prothorax very large and broad, more
than twice as broad as long, greatly expanded at the sides and broader than the elytra at the base, the
base bisinuate and with a distinct median lobe, the hind angles very prominent, the sides very rapidly
converging from the base; scutellum large, transversely scutiform; elytra short, narrowing from the
base, very strongly margined ; epipleure-very broad and concave at the base, rapidly narrowing behind ;
the flanks of the prothorax broadly and deeply concave; anterior coxe globose; prosternum very
narrow, convex and abruptly declivous behind, and gradually sloping in front; intermediate coxe
narrowly separated; legs very short and stout, broadly compressed; tarsi short, the basal joint very
stout and that of the posterior pair shorter than the following joints united, the third and fourth
joints of the anterior and intermediate pairs and the penultimate joint of the hind pair feebly lobed
beneath ; claws pectinate; body broad ovate, rather depressed, pubescent, winged.

This genus contains a single species of very peculiar aspect, which in its general
facies departs widely from any known form of Cistelide and somewhat resembles
Oochrotus. The chief characters lie in the short and broadly compressed legs and
antenne, and in the head being very deeply sunk into the underside of the thorax, so
as to be completely invisible from above. In the very large and greatly dilated thorax,
with the hind angles projecting laterally beyond the base of the elytra, it approaches the
preceding genus. The broadly concave flanks of the thorax and epipleure form
cavities for the reception of the two anterior pairs of legs; the head in repose is
obliquely withdrawn up to the eyes and does not lie upon the anterior face of the
prosternum.

The description is made from a single male example, which was captured by Herr
Hoge during his second Mexican expedition.

1. Diopenus compressicornis. (Tab. XX. fig. 16, 3.)

Broad ovate, depressed, brownish-castaneous, slightly shining, thickly clothed with short pubescence. Head
very finely and sparsely punctured; prothorax convex but depressed on the disc, closely and very

eyes (3) very large, narrowly separated; antenne (¢) stout, rather short, ferruginous; prothorax very
broad, the disc obsoletely canaliculate behind, the surface closely (but not densely), finely, and shallowly
punctured; elytra finely punctate-striate, the interstices quite flat and finely and rather closely punc-
tured; legs ferruginous; the lateral lobes of the last ventral segment broad and spoon-shaped and clothed
with long hairs at the apex.
Length 73 millim.; breadth 33 millim. (¢.)
Hab. Nortu America, Texas.

A single male example, kindly communicated by Dr. Horn. Much broader than M. crassicornis, the antenne
simple in the male, the thorax more finely and more sparsely punctured, &c.

446

HETEROMERA.

minutely punctured, the hind angles laterally projecting beyond the base of the elytra and rather obtuse,
the basal fovew fine and shallow but distinct, the median basal lobe transversely impressed within ;
scutellum very closely and minutely punctured; elytra with rows of minute punctures, the interstices
very broad and flat and closely and minutely punctured, the punctures confused with those of the strice ;
beneath closely and not very finely punctured, the sides of the metasternum with coarser and more
scattered impressions, the flanks of the prothorax almost smooth within ; legs and antenne ferruginous
and pubescent, the former finely and rather sparsely punctured.

g. The lateral lobes of the last ventral segment inwardly curved, gradually narrowing towards the apex.
Length 7 millim.; breadth (at base of prothorax) 4 millim. (¢.)

Hab. Mexico, Matamoros Izucar in Puebla (Hége).

Last

PITHOLAUS.

joint of the maxillary palpi elongate triangular, its apical side nearly as long as the outer side and somewhat
rounded ; last joint of the labial palpi broad ovate, truncate at the apex; mandibles bifid; head short
and broad, deeply sunk into the prothorax; eyes small and widely separated in both sexes; antenne
elongate and rather stout, in the male extending considerably beyond the middle of the elytra, joint 3 in
the male shorter than, but in the female about as long as, 4; prothorax transverse, constricted at the
sides behind, distinctly margined on all sides, the base truncate in the middle, the hind angles prominent
and directed a little backwards; elytra truncate and only a little wider than the prothorax at the base,
short, ovate (almost gibbous in the female), the sides compressed at some distance beyond the middle and
thence to the apex obliquely converging, punctate-striate ; metasternum exceedingly short ; abdomen in
the male with a short (but hidden) sixth ventral segment, the latter without lateral lobes ; legs long
and slender, sparsely pubescent, the penultimate joint of the tarsi lobed beneath; claws pectinate ; body
obovate, convex, glabrous, apterous.

This genus contains a single species from the highlands of Guatemala. Pitholaus is
easily separated from the allied forms by its obovate form, apterous body, long limbs,
short and broad head, posteriorly constricted thorax, lobed tarsi, and Helopiform
facies.

1. Pitholaus helopioides. (Tab. XX. figg.17, ¢; 17a, labium; 17 4, maxilla

and maxillary palpus.)
Bright brownish-bronze, glabrous. Head with fine scattered punctures, the transverse frontal depression

rather deep; antenne fusco-ferruginous, longer and stouter in the male, joints 4-10 of elongate-triangular
shape ; prothorax convex, much rounded at the sides anteriorly and constricted behind, the hind angles
rectangular, the basal fovee usually rather deep, the disc shallowly impressed in the middle before the
base, the surface finely and sparsely punctured ; scutellum almost smooth; elytra with rows of punctures
placed upon fine shallow strize, the punctures rather coarse towards the base and rapidly becoming very
much finer posteriorly, the interstices almost flat and with a few widely scattered very minute punctures,
the lateral margins posteriorly and the apex often more or less testaceous ; beneath shining, the ventral
surface almost impunctate (a few minute scattered punctures being alone visible) and with very fine and
shallow longitudinal wrinkles, the metasternum with widely scattered coarsish punctures ; legs more or
less ferruginous.

Length 53-64 millim. ; breadth 23-3 millim. (¢ 2.)

Hab. GuatEMALa, Volcan de Agua 8500 to 10,500 feet, Quezaltenango 7800 feet
(Champion).

Numerous examples.

PHEDIUS. 447

PHEDIUS.

Last joint of the maxillary palpi elongate-triangular, its apical and outer sides about equal ; mandibles feebly
cleft or subtruncate ; antenne rather short, the joints more or less filiform or subcylindrical, the third longer
than the fourth; head long and broad, strongly exserted ; eyes distant from the prothorax, very small, very
widely separated ; prothorax subquadrate, more or less convex, transverse or nearly as long as broad, the
base subtruncate or slightly rounded (sometimes feebly emarginate in the middle and a little sinuate on
each side), the sides and base feebly margined, the lateral margins not visible from above; scutellum rather
large, transversely triangular ; elytra moderately long, much wider than the prothorax and truncate at
the base, ovate, widest behind the middle and thence to the apex obliquely converging, the humeri more
or less rounded, the surface with rows of fine or coarser punctures placed upon almost obsolete strize (the
punctures of the interstices sometimes as coarse as those of the strize) or confusedly punctured ; coxe
somewhat widely separated; metasternum short; intercoxal process triangular, rather broad; legs
moderately long; the third and fourth joints of the anterior and intermediate tarsi and the penultimate
joint of the hind tarsi feebly lobed beneath; claws pectinate ; body apterous, obovate, clothed with long
erect hairs,"pubescent, or subglabrous.

This genus contains seven species, all from Mexico. The broad exserted head, small
eyes, filiform antenne, subquadrate thorax, short metasternum, apterous body, and
obovate shape distinguish Phedius readily enough from the allied forms. Except for the
pectinate claws, some of the species might be easily mistaken for ‘ Helopides’; all are
of a black or sombre colour. The subglabrous species appear to be clothed with
pubescence when fresh, but the pubescence soon wears off.

I am only able to identify for certain the females, the various examples dissected all
belonging to this sex ; we have, however, a very limited number of specimens of each
species. From Narses the genus is readily distinguished by the much smaller eyes,
the shorter and filiform antenne, more rounded humeri, less triangular apical joint of
the maxillary palpi, very feebly lobed tarsi, more slender femora, obovate shape, &c.

1. Upper surface clothed with long erect hairs.

1. Phedius chevrolati. (Tab. XX. fig. 18, 2.)

Black, opaque, somewhat thickly clothed with long erect hairs. Head very densely and rugosely punctured,
the transverse frontal depression deep ; antennze very stout, the joints subcylindrical, obscure ferruginous ;
prothorax convex, broad, transverse, the sides a little rounded about the middle and a little narrowed
and obliquely converging behind, the hind angles obtuse, the base truncate, the basal foveze obsolete, the
surface very densely and rugosely punctured, the punctures here and there obliquely or longitudinally
confluent ; scutellum sparsely punctured ; elytra convex, broadly truncate at the base, the disc a little
flattened anteriorly, the surface sparsely, finely, and confusedly punctured, the punctures becoming
finer towards the apex and coarser and more crowded at the base, the interspaces quite flat; beneath
shining, piceous, coarsely punctured, the ventral surface more finely and sparsely so ; legs ‘stout, thickly
pubescent, piceous, the tarsi ferruginous.

Length 84-9 millim. ; breadth 3? millim. (9.)

Hab. Mexico, Cordova (Sal/é).
Two female examples. This insect may be easily recognized by the exceedingly

rugose punctuation of the head and thorax, the finely and confusedly punctured elytra,
the long erect hairs of the upper surface, and the very stout antenne. Labelled

448 HETEROMERA.

Lystronychus morio, Chevr., in the Sallé collection ; it differs, however, from Lystrony-
chus in the lobed penultimate joint of the tarsi, apterous body, &c. An apterous
undescribed genus allied to Lystronychus, from Bolivia, somewhat approaches it.

2. Phedius carbonarius, (Tab. XX. fig. 19, 2.)

Rather elongate, black, opaque, clothed with long scattered suberect hairs. Head densely and rather coarsely
punctured, the transverse frontal depression large and deep; antenne stout, black ; prothorax subquadrate,
transverse, a little rounded at the sides before the middle, feebly and about equally narrowed before and
behind, the hind angles rather obtuse, the base subtruncate, the disc shallowly longitudinally impressed
in the middle behind, the basal fovew obsolete, the surface coarsely and rugosely punctured; scutellum
sparsely punctured ; elytra with rows of fine punctures placed upon very fine obsolete striz, the punctures
rather distinct one from another, the interstices quite flat and each with two rows of scattered similar
punctures, the punctures becoming finer towards the apex and coarser towards the base; beneath finely
and sparsely punctured ; legs stout, roughly punctured and pubescent, black.

Length 83 millim.; breadth 33 millim. (@.)

Hab. Mexico, Tula in Hidalgo (Hoge).

A single female example. This species may be at once identified from all others of
the genus, except P. chevrolati, by the upper surface being clothed with long scattered
suberect hairs; and from P. chevrolati by its more elongate shape, more slender
antenne, less rugose thorax, and more regularly punctured elytra. From abraded
P. funestus it is distinguished by the punctures of the elytral interstices not being
finer than those of the strie.

2. Upper surface subglabrous (or, in freshly-emerged examples, clothed
with short pubescence).

a. Prothorax and the elytral interstices finely and sparsely punctured.
3. Phedius hidalgoensis.

Piceous-black, dull, subglabrous. Head finely and rather sparsely punctured, the transverse frontal depression
large and deep ; antenne rather short, fusco-ferruginous ; prothorax much broader than long, transversely
. convex, a little rounded at the sides and about equally narrowed before and behind, the hind angles
rounded, the base somewhat rounded and distinctly emarginate in the middle and sinuate on each side,
the basal fovere deep and oblique and extending outwards, the disc broadly and rather deeply longi-
tudinally impressed in the middle behind, the surface finely (but deeply) and sparsely punctured ;
scutellum with a few scattered punctures ; elytra broad, finely and shallowly punctate-striate throughout,
the interstices flat and with widely scattered very shallow fine punctures, the punctures finer than those
of the stria; beneath very sparsely punctured, the ventral surface with a few very widely scattered
minute punctures ; legs pubescent, rather stout, piceous, the tarsi ferruginous.
Length 9 millim.; breadth 32 millim.

Hab. Mexico, Tula in Hidalgo (Hége).

One specimen only. The transversely convex and sparsely punctured thorax at once
distinguishes this species from the others of the genus.

PHEDIUS. 449

b. Prothorax and the elytral interstices rather coarsely punctured.

4. Phedius cylindricollis, (Tab. XX. fig. 20, ¢.)

Black, shining, subglabrous. Head rather coarsely and somewhat closely punctured, a transverse space on the
vertex impunctate, the transverse frontal depression deep; antenne fusco-ferruginous, rather stout ;
prothorax long and cylindrical, not much broader than long, the sides parallel from the middle to the base
and a little narrowed and rounded in front, the hind angles obtusely rectangular, the basal fovex indistinct,
the base subtruncate, the disc longitudinally impressed in the middle behind, the surface rather coarsely
and somewhat closely punctured ; scutellum sparsely punctured ; elytra with rows of rather coarse punctures
placed upon fine shallow stris, the interstices flat and somewhat thickly punctured, the punctures deep and
as coarse as those of the striz but (like those of the stris#) becoming finer towards the apex, the strie
indistinct at the sides and beyond the middle; beneath sparsely punctured ; legs pubescent, piceous or
ferruginous, the tarsi lighter.

Length 7-83 millim. ; breadth 33-33 millim. ( 9.)

Hab. Mexico, Guadalajara in Jalisco (Hége).

Three examples, apparently all females. The thorax of one specimen has a deep
rounded fovea on each side of the disc about the middle, and the base an emargination
in front of the scutellum, but this is probably due to accidental circumstances. The
long and cylindrical thorax, the coarsely and somewhat confusedly punctured elytra,
and the rather shining surface are the chief characters of this species; the longer
and much more sparsely punctured thorax distinguishes it from its nearest ally,
P. obovatus.

5. Phedius obovatus.

Black or brownish-piceous, subopaque, the elytra slightly shining, subglabrous (when fresh thickly clothed
with short pubescence). Head densely and rugulosely punctured, the punctures on the vertex here and
there confluent, the epistoma more sparsely punctured, the transverse frontal depression deep; antenne
fusco-ferruginous, moderately stout; prothorax short, transverse, the sides feebly rounded and about
equally narrowed before and behind, the hind angles obtuse, the base subtruncate, the basal fovez
obsolete, the disc unimpressed, the surface densely and rugulosely punctured, the punctures here and there
longitudinally or obliquely confluent; scutellum somewhat thickly punctured ; elytra punctate-striate
throughout, the punctures rather coarse and deep and closely placed upon shallow strie, the interstices
flat and rather thickly punctured, the punctures fully as coarse as those of the strie ; beneath sparsely
but coarsely (the sides of the venter more finely) punctured ; legs pubescent, piceous, the tarsi lighter.

Length 63-73 millim.; breadth 25-33 millim. ( 2.)

Hab. Muzxico, Guanajuato (Sallé), Aguas Calientes city (Hége).

Three examples. One of these is immature and has the upper surface clothed with
short pubescence, the other two being subglabrous. The punctures of the elytral
strie are placed close together, and the striz in consequence are distinct from the
equally coarsely punctured interstices. The coarsely punctured elytral interstices
separate this species from all but P. cylindricollis; the thorax is more rugosely

punctured than in P. mexicanus.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3 MM

450 HETEROMERA.

c. Prothorax rugulosely, the elytral interstices finely, punctured.

6. Phedius mexicanus.

Black or brownish-piceous, opaque, subglabrous (when fresh clothed with very short pubescence). Head
closely and somewhat coarsely punctured, a transverse narrow space on the vertex impunctate, the trans-
verse frontal depression rather shallow ; antenne piceous or ferruginous, rather stout; prothorax long
and convex, not very much broader than long, the sides almost straight from the middle to the base and
a little narrowed and rounded in front, the hind angles obtusely rectangular, the base subtruncate
(sometimes feebly emarginate before the scutellum), the disc (in some examples) shallowly canaliculate,
the basal fovez indistinct, the surface densely and rugulosely punctured ; scutellum thickly punctured ;
elytra a little depressed on the disc, very finely and shallowly punctate-striate (the punctures rather
scattered beyond the basal third), the interstices quite flat and sparsely and minutely punctured, the
punctures (except at the extreme base) finer than those of the striw; beneath sparsely punctured, the
ventral surface more finely so ; legs piceous, the tarsi ferruginous.

Length 7-74 millim.; breadth 33-33 millim. ( 9.)

Hab. Mexico, Guanajuato (Sallé).

Six examples. P. mexicanus may be separated from all the preceding species,
except P. carbonarius, by the rugose thorax and finely punctured elytra; and from the
latter by the almost glabrous surface.

7. Phedius funestus.

Black, opaque, subglabrous. Head closely and rather coarsely punctured, the transverse frontal depression deep ;
antennee piceous or fusco-ferruginous ; prothorax short, transverse, the sides a little rounded and about
equally narrowed before and behind, the hind angles obtuse and almost rounded, the base subtruncate
but sometimes feebly emarginate in the middle and on each side, the basal fovew indistinct, the disc
unimpressed, the surface densely and rugulosely punctured ; scutellum thickly punctured; elytra finely
punctate-striate, the punctures becoming much finer beyond the middle, the interstices quite flat and
sparsely and very finely punctured, the punctures (like those of the stria) coarser at the base and finer
towards the apex ; beneath coarsely, the venter much more finely and sparsely, punctured; legs piceous,
the tarsi lighter.

Length 8-94 millim. ; breadth 33-4 millim.

Hab. Mexico, San Antonio de Arriba (Sal/é), Tehuacan, Oaxaca (Hége).

Four examples. This insect is closely allied to P. meaicanus ; it differs from it in its
larger size, more convex shape, the elytra less finely and more distinctly punctate-striate,
the thorax shorter and more transverse and with the hind angles almost rounded, and
the metasternum more coarsely punctured. The thorax is sculptured exactly as in
P. mexicanus (without trace, however, of a central groove), though the punctures of
the elytra are deeper and not so fine. P. funestus much resembles certain European
species of Helops.

TELESICLES.

Last joint of the maxillary palpi elongate-triangular, its apical and outer sides about equal; mandibles bifid ;
head broad, rather deeply sunk into the prothorax; eyes small, very widely separated; antenne stout,
rather short, joint 3 as long as 4, joints 4-10 rounded at their inner apical angle; prothorax moderately
transverse, distinctly margined at the sides and base, constricted at the sides behind, the base subtruncate ;
scutellum transversely triangular, rather small; elytra truncate and a good deal wider than the prothorax

TELESICLES.—CISTELA. 451

at the base, moderately long, rounded at the shoulders and thence to beyond the middle parallel, punctate-
striate ; metasternum long, shallowly grooved in the middle; intermediate and posterior coxe rather
widely separated ; posterior coxee divided into two nearly equal parts by the transverse groove; abdomen
with five visible segments ; legs slender, moderately long, the penultimate joint of the tarsi feebly lobed
beneath ; claws pectinate ; body elongate, subparallel, depressed, pubescent, winged.

The single species from Northern Mexico included in this genus has quite a different
facies from any of the allied Central-American forms, though approaching Alethia in
some of its characters. The depressed elongate shape, posteriorly constricted thorax,
short and stout antenna, broad head, small eyes, the elytra moderately long and much
broader than the thorax, the rather widely separated hinder coxe, slender legs, and
other characters noticed above sufficiently distinguish Telesicles from its allies. One

example only, apparently a female, has been received.

1. Telesicles cordatus. (Tab. XX. fig. 21.)

Light brownish-castaneous, thickly pubescent, shining. Head coarsely and somewhat thickly punctured, the
transverse frontal groove deep, the space between the eyes rather convex; prothorax somewhat convex,
broader than long, the sides much rounded anteriorly and constricted behind, the hind angles rather pro-
minent, the disc obsoletely canaliculate behind and transversely impressed before the base, the basal fovew
distinct, the surface punctured like that of the head; scutellum finely and closely punctured; elytra
depressed, deeply and somewhat coarsely punctate-striate throughout, the interstices almost flat, and each
with two irregular rows of coarsish punctures; beneath sparsely and rather coarsely punctured ; legs and

antenne ferruginous.
Length 53 millim.; breadth 2} millim. (9?)

Hab. Mexico, Villa Lerdo in Durango (fHége).

CISTELA.
Cistela, Fabricius, Syst. Ent. p. 116 (1775) ; Lacordaire, Gen. Col. v. p. 504 (1859) (pars).

The Central-American species I include in this genus have the penultimate joint of
the tarsi not lobed beneath, the third joint of the antenne shorter than the fourth (in
the males of several very short and only a little longer than the second), and joints
4-10 of the antenne in the male elongate-triangular or serrate and often much longer
than in the female. ‘Two well-marked groups of species appear to be indicated—one
having undilated anterior tarsi, and a simple (but hidden) sixth ventral segment, in the
male; the other with the basal joints of the anterior tarsi dilated, and the (hidden) sixth
ventral segment with strongly developed lateral lobes, in the male. I am unable to
satisfactorily separate any of the Central-American representatives from Cistela, or to
include them in either of the genera proposed by various authors for certain North-
American or European species. In the short third joint and serrate antenne in the
male several of the Central-American forms are suggestive of Chromatia; the latter,
however, is stated to have the sixth ventral segment prominent in this sex, a character
not shared by our insects.

In C. fragilicornis (the female only of which is known to me) the antenne are
exceedingly long and slender. A large number of species from all parts of the world

3 MM 2

452 | HETEROMERA.

have been referred to this genus, but very many of these will have to be separated
when the numerous tropical forms are more’thoroughly investigated.

1. Antenne rather stout, often more or less serrrate in the male ; species moderate
im size.

* Siath ventral segment in the male short (hidden by the fifth), its apical margin
truncate and without lateral lobes; anterior tarsi similar in both sexes.

1. Cistela nigricornis. (Tab. XX. figg. 22, 22a, 3.)

Oblong ovate, broad, slightly convex, piceous-brown, sometimes of a lighter and more reddish tint, opaque,
thickly clothed with ashy pubescence. Head closely and finely punctured ; eyes large and rather narrowly
separated in the male, smaller and more distant in the female ; antenne black or piceous (rarely fusco-
ferruginous), lighter at the base—(¢ ) reaching to beyond the first third of the elytra, joint 3 short, not
very much longer than 2, joints 4-10 flattened and subserrate within, ( 2 ) shorter, joint 3 longer (though
not so long as 4), joints 4-10 narrower and less dilated at their inner apical angle; prothorax very short,
strongly transverse, the sides rounded and narrowing from a little before the base, the hind angles rather
obtuse, the basal fovee almost obsolete, the base strongly bisinuate, the surface finely and very densely
punctured ; scutellum finely and closely punctured ; elytra a little rounded at the sides, shallowly striate
throughout, the strie with fine, shallow, closely-placed punctures, the interstices flat or very feebly convex
and very finely and closely punctured, the surface not quite so dull as that of the prothorax; beneath
finely and closely punctured, the metasternum more sparsely so, the latter with a deep longitudinal groove
in the middle; legs rather slender, brownish-piceous or obscure ferruginous. The tarsi similar in both
sexes, their antepenultimate joint somewhat produced beneath.

g. Abdomen with a short but hidden non-lobed sixth ventral segment; the central sheath laterally com-
pressed, the apex slightly hooked above.

Length 53-72 millim. ; breadth 3-4 millim. (3 9.)

Hab. Mexico, Ventanas in Durango, Chilpancingo, Jalapa, Almolonga, Tapachula in
Chiapas (Z/ége), Oaxaca, Guanajuato, Tehuantepec (Sallé); Nicaragua, Chontales
(Belt); Cosra Rica, Cache (Rogers) ; Panama, Volcan de Chiriqui 3000 feet (Champion).

Many specimens from Mexico and one only from each of the other localities. This
is apparently the commonest of the allied forms in Mexico. In some male examples
the third joint of the antenne is rather longer than in others; in the single male
from Nicaragua (doubtfully referable to the same species) the antenne are ferru-
ginous and more distinctly serrate, and the metasternum is more sparsely punctured.
Immature abraded examples have a rather different facies, owing to their less opaque
surface, &c.

2. Cistela zunilensis.

Oblong ovate, rather narrow, fusco-testaceous or obscure reddish-brown, dull, thickly pubescent. Head finely
and closely punctured; eyes large and rather narrowly separated in the male, smaller and much more
widely separated in the female; antenne fusco-testaceous, often lighter towards the base—(¢) long,
reaching fully to the middle of the elytra, joint 3 short, not much longer than 2, joints 4-10 flattened and
moderately serrate within, (2) shorter, narrower, and more slender, joint 3 much longer (nearly as long
as 4), joints 4-10 elongate triangular in shape; prothorax very short, strongly transverse, the sides
rounded and narrowed from a little before the base, the hind angles subrectangular, the basal foves

CISTELA. 453

very shallow, the surface finely and densely punctured ; scutellum closely and finely punctured ; elytra a
little more shining than the prothorax, slightly rounded at the sides, shallowly and very finely punctate-
striate, the punctures becoming still finer towards the apex, the interstices flat and thickly punctured ;
beneath finely and closely punctured ; legs fusco-testaceous, slender ; the tarsi similar in both sexes, their
antepenultimate joint somewhat produced beneath.

g. Abdomen with a short but hidden non-lobed sixth ventral segment; the central sheath laterally com-
pressed.

Length 53-73 millim. ; breadth 23-34 millim. (¢ 9.)

Hab. Guatemata, Cerro Zunil 4000 feet, Sinanja, Senahu in Vera Paz 3000 feet
(Champion).

Numerous examples from Cerro Zunil and one only from each of the other localities.
Narrower and smaller than C. nigricornis; the tarsi more slender, the first joint of the
two hinder pairs more elongate, the central sheath of the cedeagus not hooked at the
apex, &c. The description is made from the Zunil examples, the others being in a
mutilated condition.

3. Cistela cinerascens.

Oblong ovate, somewhat depressed, piceous-brown, opaque, thickly clothed.with ashy pubescence. Head finely
and rather closely punctured; eyes ( ¢ ) very small and very widely separated ; antenne ( ¢) long, fully
reaching to the middle of the elytra, joint 3 short, about half the length of 4, joints 4-10 subserrate
within, piceous; prothorax broad, strongly transverse, widest about the middle, the sides rounded, and
narrowed a little posteriorly and more strongly so in front, the hind angles obtuse, the basal fovese
obsolete, the disc shallowly longitudinally impressed in the middle behind, the surface very finely and
densely punctured ; scutellum minutely punctured; elytra the width of the prothorax at the base, a little
rounded at the sides, finely and shallowly punctate-striate, the punctures closely placed, the interstices
very feebly convex and closely and minutely punctured; beneath closely and finely punctured; legs
slender, fusco-ferruginous, the tarsi undilated in the male.

g. Abdomen with a short but hidden non-lobed sixth ventral segment ; the central sheath slightly compressed.

Length 5? millim.; breadth 23 millim. (¢.)

Hab. Mexico, Matamoros Izucar (Hodge).

A single male example. This species may be at once distinguished amongst its
allies by the small and widely separated eyes (much smaller and more distant than in
the females of the allied forms), and by the thorax being widest about the middle and
very distinctly narrowed behind. It is, perhaps, nearest allied to C. nigricornis.

4, Cistela calida.

Ovate, rather convex, brownish-castaneous, slightly shining, thickly pubescent. Head finely and rather closely
punctured ; eyes ( ¢) large and somewhat narrowly separated ; antenne (¢ ) rather short, about reaching
to the first third of the elytra, joint 3 short, not twice the length of 2, joints 4-10 subserrate within,
fusco-ferruginous, lighter towards the base ; prothorax strongly transverse, the sides rounded and
narrowing almost from the base, the hind angles subrectangular, the basal foveee shallow but distinct,
the surface densely and finely punctured ; scutellum closely punctured ; elytra rounded at the sides, finely
but rather deeply punctate-striate, the interstices almost flat and closely punctured; beneath finely and
sparsely punctured, the ventral surface more closely so along the middle, the metasternum with scattered
punctures ; legs ferruginous ; the tarsi not dilated in the male.

g. Abdomen with a short but hidden non-lobed sixth ventral segment; the central sheath somewhat com-
pressed, and hooked at the apex above.

Length 5} millim. ; breadth 23 millim. (¢.)

454 HETEROMERA.
Hab. Panama, David in Chiriqui (Champion).

A single male specimen. ‘This insect is perhaps nearest allied to C. zunilensis ; but
differs from it in its less elongate shape, much shorter and less serrate antenne,
shorter legs, deeper (though fine) punctures of the elytral striz, &e.

** Sixth ventral segment in the male with strongly-developed lateral lobes, hidden by the
fifth; the basal joints of the anterior tarsi (except in C. decepta) more or less dilated
in the male.

5. Cistela decepta. (Tab. XX. fig. 23.)

Oblong ovate, obscure reddish- or piceous-brown, opaque, thickly pubescent. Head finely and closely punc-
tured, the anterior half more sparsely so; eyes (¢) large and rather narrowly separated; antenne (¢ )
ferruginous, the apical joints darker, rather slender and about reaching to the first third of the elytra,
joint 8 short, scarcely twice the length of 2, joints 5-10 elongate-triangular in shape ; prothorax strongly
transverse, the sides rounded and narrowing from a little before the base, the hind angles obtuse, the
basal fover very shallow but distinct, the surface finely and densely punctured ; elytra distinctly wider
than the prothorax, very little rounded at the sides, sculptured as in C. nigricornis ; beneath and the legs
narrowing at the apex, much as in C. nigricornis, the tarsi, however, more elongate.

¢. The lateral lobes of the last ventral segment widely separated at the base, abruptly and obliquely incurved
about the middle, the apices blunt and coarsely setose within ; the central sheath broad and flat, abruptly
narrowing at the apex, the latter slightly hooked above. (Fig. 23.)

Length 74 millim.; breadth 33 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

A single male example. C. decepta is closely allied to C. nigricornis and C. zunilensis,
but differs from both in its very differently formed last ventral segment in the male;
it is also narrower than C. nigricornis, and has longer tarsi.

6. Cistela chiriquensis. (Tab. XX. figg. 24, 24a, ¢ .)

Ovate, rather broad, moderately convex, piceous- or reddish-brown, scarcely shining, thickly pubescent. Head
finely and somewhat closely punctured ; eyes (d) rather large, a little smaller and more widely separated
in the female; antenne—( ¢) moderately long, joint 3 short, only a little longer than 2, joints 4-10
broad and strongly serrate within, (Q) shorter, joint 3 much longer (though not nearly so long as 4) and
more slender, joints 4-10 narrower, 9 and 10 triangular and wider than the others—varying in colour
from brownish-piceous with the basal joints lighter, to ferruginous with the apical three joints piceous ;
prothorax short, strongly transverse, the sides rounded and converging from a little before the base, the
hind angles subrectangular, the basal fovese small but distinct, the surtace closely and finely punctured ;
scutellum closely and finely punctured; elytra comparatively rather short, a little rounded at the sides,
widest at the middle, rather coarsely punctate-striate, the punctures closely placed, the interstices feebly
convex and closely and very finely punctured; beneath more shining, sparsely and finely punctured, the
metasternum and ventral surface more closely so in the middle, the former with coarse impressions, and
the latter longitudinally wrinkled, at the sides; prosternum narrow ; legs fusco-ferruginous.
g. Anterior and intermediate tarsi dilated, the first joint of the anterior pair strongly so. The lateral lobes
of the last ventral segment stout and very widely separated at the base, twisted and very abruptly con-
stricted about the middle, the narrower apical portions obliquely converging, the latter roughened and

CISTELA. 455

armed with scattered irregular teeth within ; the central sheath broad,
apex, the latter strongly hooked above. (Fig. 24 a.)
Length 7-8 millim.; breadth 33-4 millim. (3 @.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

abruptly narrowed towards the

One female and four male examples. This species differs from C. nigricornis in the
antenne in the male being more strongly serrate, and in the more coarsely punctate-
striate elytra; the armature of the male is totally different in structure, and the tarsi
of the anterior and intermediate legs are dilated in this sex.

7. Cistela delitescens. (Tab. XX. figg. 25, 25a.)

Oblong ovate, moderately convex, piceous-brown, opaque, thickly clothed with short pubescence. Head finely
and sparsely punctured ; eyes comparatively large in the male, smaller and more widely separated in the
female ; antenne in the male reaching to the middle of the elytra, and with joints 4-10 moderately
serrate within, in the female slender and rather shorter, and with joints 4-10 only a little widened towards
their apex, fusco-ferruginous, the third joint short, and only a little more than half the length of the
fourth in either sex ; prothorax transverse, the sides rounded and converging from a little before the base,
the hind angles subrectangular, the basal fovex feebly indicated, the disc shallowly impressed in the
middle behind, the surface very finely and somewhat closely punctured ; scutellum finely and closely
punctured ; elytra a little rounded at the sides, very finely and shallowly punctate-striate, the interstices
almost flat and very minutely and somewhat closely punctured; beneath finely and rather closely punc-
tured, the metasternum more coarsely so; anterior and intermediate cox narrowly separated ; meta-
sternum rather short ; legs long and slender, stouter in the male, fusco-ferruginous ; the first joint of the
hind tarsi long, about the length of the following joints united.

dg. Anterior tarsi with the three basal joints and the intermediate tarsi with the first joint dilated, the first -
joint of the anterior pair very broadly so; intermediate tibie curved. Fifth ventral segment slightly
emarginate in the middle. The lateral lobes of the last ventral segment broad at the base, very abruptly
constricted about the middle, the narrower apical portion long and bent abruptly inwards (forming a
strong hook), the latter clothed with coarse hairs; the central sheath broad, acuminate towards the
apex, the latter slightly hooked. (Figg. 25, 25a.)

Length 52-63 millim.; breadth 23-3 millim. (¢ 9.)

Hab. GuatEMALA, Duefias 5000 feet (Champion).

Six examples. This and the following species have the anterior tarsi in the male
strongly dilated. Both are distinguished from C. chiriquensis by their duller surface
and much more finely punctured elytral strie; the cedeagus of C. delitescens closely
resembles that of C. cheriquensis.

8. Cistela occulta. (Tab. XX. fige. 26, 26a,¢.)

Closely resembling C. delitescens and differing as follows :—Fusco-ferruginous ; the eyes larger and more
narrowly separated ; the antennw (3) much longer (reaching beyond the middle of the elytra), joint 3
short, only a little longer than 2, and about one third of the length of 4, joints 4-10 much more elongate
and more strongly serrate, ferruginous ; prothorax more densely and less finely punctured, the disc deeply
canaliculate behind ; elytra less opaque, more deeply and more coarsely punctate-striate, the interstices
rather more convex and more distinctly punctured ; legs ferruginous; the rest as in C. delitescens.

3. Tarsi and tibiee formed as in C. delitescens. Fifth ventral segment slightly emarginate in the middle.
The lateral lobes of the last ventral segment widely separated at the base, simply curved, clothed with
scattered hairs; the central sheath broad, the apical portion acutely elongate-triangular in shape, but
with the apex rounded. (Fig. 26.)

Length 64 millim.; breadth 23 millim. (¢.)

456 HETEROMERA.

Hab. GuatTeMALA, Las Mercedes 3000 feet (Champion).

One male example only, differing as above from the corresponding sex of C. deli-
tescens.

9. Cistela juquile.

Oblong ovate, rather depressed, piceous-brown, opaque, thickly pubescent. Head finely and rather sparsely
punctured ; eyes (2) rather small, widely separated; antenne (2) ferruginous, moderately long, joint 3
about twice as long as 2, and much shorter than 4, joints 4-10 narrowly elongate-triangular ; prothorax
moderately transverse, the sides parallel behind and rounded and narrowing from about the basal third,
the hind angles subrectangular, the basal fovew very shallow, the surface finely and somewhat densely
punctured ; elytra a little rounded at the sides, finely and very shallowly punctate-striate throughout, the
interstices flat and closely and minutely punctured, the humeri very little rounded; beneath finely and
rather sparsely punctured ; legs ferruginous, the tarsi rather stout.

Length 8 millim.; breadth 32 millim. (?.)

Hab. Mexico, Juquila (Sallé).

Two female examples. This insect closely resembles C. decepta, but differs from it in
the thorax being less transverse, with the sides more parallel behind and the disc less
densely punctured, and the elytra more depressed and with less rounded humeri. From
the corresponding sex of C. delitescens its larger size and stouter limbs sufficiently
distinguish it. I include C. jyugut/e provisionally in this section of the genus, it having
considerable affinity in many of its characters with C. delitescens.

10. Cistela alternans. (Tab. XXI. fig. 1, ¢.)

Oblong ovate, depressed, obscure reddish-testaceous, subopaque, sparsely clothed with short pubescence. Head very
finely and sparsely punctured ; eyes(d) rather small; antenne (< ) reaching to the middle of the elytra,
rather stout and gradually widening outwardly, joint 3 shorter than 4, joints 4-10 long and subtriangular,
testaceous, the last three or four joints darker ; prothorax short, transverse, the sides rounded and con-
verging from a little before the base, the hind angles obtuse, the basal fovec rather deep, the surface very
finely and rather closely punctured, the anterior half of the disc more sparsely so, the disc somewhat flat-
tened, and broadly suffused with fusco-piceous ; scutellum very finely and closely punctured; elytra sub-
parallel in their basal half, rounded at the shoulders, finely and shallowly punctate-striate, the interstices
quite flat and thickly punctured, the alternate ones fusco-piceous; beneath finely and rather closely
punctured, the sides of the metasternum coarsely and sparsely punctured in front and smooth behind, the
venter darker at the sides ; anterior and intermediate coxe narrowly separated; metasternum moderately
long ; legs testaceous, long and slender.

g. Anterior and intermediate tarsi slightly dilated, the first joint of the anterior pair rather broadly so. The
lateral lobes of the last ventral segment curved, their apices bluntly rounded off and clothed with longish
hairs.

Length 63 millim.; breadth 22 millim. (¢.)

Hab. Mexico, Yolotepec (Salié).
A single male example. This species departs widely from the allied forms in the

system of coloration of the elytra, the alternate interstices being of a darker colour
than the others.

CISTELA.—ISOMITRA. 457

2. Antenne (¢ ) very long and slender, subjiliform ; species large.
11. Cistela fragilicornis. (Tab. XXI. fig. 2, 2.)

Oblong ovate, rather broad, depressed, brownish-piceous with an seneous tint, scarcely shining, thickly clothed
with short pubescence. Head very finely and closely punctured, with a deep frontal depression ; eyes (2 )
rather small; antenne ( @ ) long and very slender, reaching to about the middle of the elytra, the joints
very long and subfiliform and but little widened towards their apex, the third joint shorter than the
fourth, fusco-testaceous ; prothorax transverse, the sides converging from the base, the hind angles sub-
rectangular, the disc very distinctly canaliculate (more deeply so behind) and with an oblique foveate
impression on each side (sometimes connected by a shallow transverse groove) a little behind the middle,
the basal foveze deep and usually connected by a very narrow deep groove running along the basal
margin, the space in front of the basal groove transversely raised, the surface minutely and densely punc-
tured ; scutellum finely and closely punctured ; elytra long, a little rounded and acutely margined at the
sides, very shallowly and minutely punctate-striate from the base to the apex, the interstices almost flat
and densely and minutely punctured, the surface less dull and of a more sneous tint than that of the
prothorax ; beneath finely and densely punctured, the metasternum more sparsely and more coarsely so at
the sides ; anterior and intermediate coxe narrowly separated ; legs long and slender, the tarsi compara-
tively very long, brownish-piceous, the tarsi more or less ferruginous.

Length 113-123 millim.; breadth 44-5 millim. (9.)

Hab. Guatemata, Calderas 6000 to 7000 feet (Champion).

Six examples, all females. This is the largest species of this group inhabiting the
Central-American region. As will be seen from the above description, C. fragilicornis
is very distinct from any other species here enumerated. The antenne are long,
slender, and subfiliform ; they are possibly still longer in the male.

I met with this species only on the slopes of the Volcan de Fuego.

ISOMIRA.
Isomira, Mulsant, Hist. Nat. Col. de France, Pectinipédes, p. 52 (1856) ; Lacordaire, Gen. Col. v.
p- 506 (1859).

The Central-American species referred to this genus agree in having the antenne
slender, moderately long, and the third joint fully as long as the fourth in both sexes,
and the penultimate joint of the tarsi not lobed beneath ; the males have a simple (but
hidden) sixth ventral segment, the sides of which are not lobed. The few species
described are from Europe, Morocco, and North America. In Central America the
genus is not known to me from south of Guatemala.

1. Isomira obsoleta. (Tab. XXI. fig. 3, ¢ .)

Oblong ovate, rather broad and convex, obscure reddish- or piceous-brown with a slight zneous tinge, densely
clothed with short fulvous pubescence, scarcely shining. Head closely and finely punctured; eyes mode-
rately large; antenne slender and subfiliform in both sexes, in the male reaching to about the first third
of the elytra, the third and fourth joints long and about equal in length, ferruginous; prothorax twice as
broad as long at the base, the sides rounded and rapidly converging from the rather obtuse hind angles,
the basal fovez scarcely indicated, the disc feebly impressed in the middle behind, the surface finely,
densely, and equally punctured; scutellum closely and finely punctured; elytra rather long, the sides

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3NN

458 HETEROMERA.

rounded and forming a continuous outline with the prothorax, finely, densely, and confusedly punctured,
with rows of very fine punctures towards the base only, the punctures scarcely distinguishable from those
of the interstices, the latter perfectly flat; beneath and the epipleure finely and closely punctured, the
metasternum coarsely and sparsely so; prosternum rather broad and convex between the coxa; meso-
sternum feebly convex, rounded off in front; legs long and slender, fusco-ferruginous, the tibia similar in
both sexes; the first joint of the hind tarsi shorter than the following joints united.

g¢. Abdomen with a short (but hidden) sixth ventral segment, the segment without lateral lobes; the
central sheath stout, gradually acuminate towards the apex, the pieces on either side very short.

Length 73-9 millim.; breadth 33-43 millim. (¢ 9.)

Hab. Mrxico, Oaxaca (Sallé), Cerro de Plumas, Almolonga, Chilpancingo, Vera
Cruz (Hoge); GuatemaLa, Zapote (Champion).

Numerous examples from Zapote, one or two only from each of the other localities.
This species may be identified by the confused punctuation of the elytra; in two of the
Mexican examples the upper surface is rather more densely punctured and in conse-
quence duller. The North-American J. valida is apparently an ally of this insect.

2. Isomira subenea. (Tab. XXI. fig. 4.)

Oblong ovate, rather depressed, brownish-piceous with an eneous tint, slightly shining, clothed with short
pubescence. Head closely and somewhat coarsely punctured, with the transverse frontal groove deep ;
eyes rather small; antenne fusco-ferruginous, rather slender in both sexes, reaching in the male nearly
to the middle, in the female to the first third, of the elytra, joints 8 and 4 equal in length, 4-10 a
little widened towards their apex and with their inner apical angle rounded in both sexes; prothorax
short, strongly transverse, the sides converging from a little before the base and somewhat rounded
behind, the hind angles obtuse, the basal foves very shallow, the disc with traces of a smooth central
slightly impressed line, the base feebly bisinuate, the surface very closely and finely punctured; scutellum
closely and finely punctured; elytra widest a little beyond the middle, with rows of very fine oblong
punctures which in the apical third are confused with and indistinguishable from those of the interstices,
the latter quite flat and closely and finely punctured; beneath closely and finely punctured, the meta-
sternum more sparsely and more coarsely so; prosternum narrow ; legs long and slender, fusco-ferruginous,
the tarsi similar in both sexes.

g. Abdomen with a short but hidden sixth ventral segment, the segment without lateral lobes: the
central sheath stout, laterally compressed, the pieces on either side of it stout and rounded off in front.

Length 63-84 millim. ; breadth 3-33 millim.

Hab. Mexico, Ostuncalco 7500 feet, Totonicapam 9000 feet (Champion).

Three examples, captured in the elevated Los Altos region of Guatemala. Resembles
Cistela fragilicornis, but smaller, the thorax rounded at the sides behind (not con-
verging from the extreme base), the elytra (as in L. obsoleta) merely with rows of very
fine punctures from the base to a little beyond the middle, the antenne with much less
elongate joints, &c. The single male example (from Totonicapam) is much smaller
than the others.

8. Isomira evanescens.
Oblong ovate, feebly convex, reddish- or piceous-brown, slightly shining, the elytra with a very slight «neous
tinge, thickly pubescent. Head closely and finely punctured; eyes rather small, more widely separated
in the female; antennee comparatively short, slender, and similar in both sexes, not reaching to the

ISOMIRA. 459

middle of the elytra, the joints widening a little towards their apex and with their inner apical angle
rounded, the third and fourth equal in length, ferruginous; prothorax strongly transverse, the sides
rounded and narrowing from a little before the base, the hind angles obtuse, the basal fovese small and
shallow, the surface finely and densely punctured; scutellum closely and finely punctured; elytra mode-
rately long, widest about the middle, the sides very little rounded, finely and lightly punctate-striate, the
punctures becoming coarser towards the sides and finer and shallower beyond the middle, the interstices
flat and closely and finely punctured; beneath finely and closely punctured ; legs slender, ferruginous, the
tarsi similar in both sexes.

gd. Abdomen with a short but hidden sixth ventral segment, the segment without lateral lobes; the
central sheath laterally compressed.

Length 63-73 millim.; breadth 23-32 millim. (¢ 9.)

Hab. Guatema.a, San Gerdnimo, Duefias (Champion).

Seven examples. Smaller and more parallel than J. obsoleta, the sides of the thorax
a little rounded at the extreme base, the elytra with distinct rows of punctures in their
basal half, the joints of the antenne shorter and less filiform and the prosternum
narrower ; as in J, obsoleta, the antenne and tarsi are similarly formed in both sexes.

4, Isomira brevicollis.

Oblong ovate, rather depressed, piceous-brown, slightly shining, thickly pubescent. Head finely and closely
punctured; eyes small; antenne piceous, ferruginous towards the base, formed as in J. evanescens:
prothorax very short, nearly twice as broad as long, the sides narrowed from a little before the base, the
hind angles obtuse, the basal fovese small and shallow, the surface finely and densely punctured ; elytra
very closely and finely punctured, with rows of very fine punctures, the punctures scarcely finer than and
almost indistinguishable from those of the interstices; beneath finely and closely punctured, the meta-
sternum more sparsely and coarsely so; the rest as in J. evanescens.

Length 6; millim.; breadth 3 millim. (¢.)

Hab. Mexico, Jalapa (Hége).

Though we have but a single female example of this insect I am compelled to treat
it as distinct from J. evanescens; the elytra are confusedly punctured, the rows of
punctures being scarcely visible (in J. evanescens, though fine, they are very distinct in
the basal half); and the thorax is rather more rounded at the sides behind and still

more strongly transverse.

5. Isomira (?) ——?
Hab. Mexico (Sallé, ex coll. Sturm).

A single immature male, too mutilated to describe, of a species perfectly distinct
from any other noticed here, and labelled Cistela badia, Sturm, in the Sallé collection.
This insect is of elongate-ovate shape, rather depressed, with a finely and densely
punctured thorax, very closely and confusedly punctured and shallowly striate elytra
(the punctures of the striz not distinguishable from those of the interstices), long and
slender antenne with the third joint as long as the fourth, and long and slender legs.

3 NN 2

460 HETEROMERA.

ERXIAS.

Last joint of the maxillary palpi long and moderately broad, its outer side much longer than the apical side,
the inner apical angle somewhat rounded; last joint of the labial palpi broad ovate, the apex truncate ;
mentum trapezoidal, large, not much broader than long; ligula large and prominent; mandibles long,
feebly cleft at the apex; labrum very large and prominent, connected with the epistoma by a broad
membranous space; head long and narrow, subrostrate, strongly exserted, the sides obliquely converging
in front, the epistoma long and separated by a shallow groove; eyes small, widely separated, distant from
the prothorax; antenne ( @) very stout, the joints cylindrical, 3 longer than 4, 5-11 as wide at the base
as at the apex, 9-11 rather more slender, 11 about one third longer than 10 and somewhat pointed ;
prothorax broader than long, moderately convex, very sharply margined at the sides and base, the
sides much rounded anteriorly and straight (though slightly converging) behind, the hind angles acute,
the base broadly rounded in the middle, the median portion a little produced, the basal fovee smal] and
oblique; scutellum large, scutiform; elytra moderately long, broad, fully one half wider than the pro-
thorax at the base, widest beyond the middle, the intrahumeral depression deep, the humeri rounded, the
surface finely punctate-striate ; abdomen with five visible segments; coxee rather widely separated ; inter-
coxal process short, very broadly triangular; legs moderately long and stout, the tarsi not lobed beneath ;
claws pectinate ; body winged, obovate, rather convex, broad, clothed with long, widely scattered, suberect

hairs.

This interesting new genus departs widely from any yet described; it has the inter-
coxal process of the abdomen very broad and accordingly belongs to the ‘“ Lystrony-
chides” as defined by Lacordaire. In the subrostrate form of the head it approaches
certain Central-African forms, though differing widely in other respects. The two
species referred to it, one from Nicaragua and one from the State of Panama, are closely
allied; both are bright reddish-testaceous in colour, with the elytra, antennae, palpi, and
legs (except rather more than the basal half of the femora) violaceous or cyaneous, and
the upper and under surfaces more or less shining. Our examples of both species are
females.

1. Erxias violaceipennis. (Tab. XXI. figg. 5,2; 5a, labium; 58, maxilla
and maxillary palpus.)

Bright reddish-testaceous, shining, the palpi, antenne, and legs (except rather more than the basal half of the
femora) dark cyaneous, the elytra and epipleure violaceous or bluish-violaceous and duller. Head
sparsely, very irregularly, and coarsely punctured, the epistoma more finely so, a narrow transverse space
on the vertex impunctate; prothorax with widely scattered, irregularly arranged, coarse and fine punc-
tures, the coarse punctures each bearing a long erect hair, the short basal foves connected by a deep
groove running along the base, the disc very shallowly impressed in the middle behind; scutellum with a
few fine scattered punctures ; elytra finely and lightly punctate-striate throughout, the punctures closely
placed, the interstices quite flat and irregularly and thickly punctured (the punctures as coarse as those
of the strie and towards the sides confused with them) and each with a row of distantly placed coarser
setiferous impressions ; beneath with a few minute very widely scattered punctures and here and there a
coarser setiferous one, the venter with shallow longitudinal wrinkles.

Length 12-13 millim.; breadth 54 millim. ( 9.)

Hab. Nicaragua, Chontales (Belt, Janson).

Two female examples.

2. Erxias bicolor.

Closely allied to Z. violaceipennis, and differing as follows:—The head still more regularly punctured ; the

ERXTAS.—PROSTENUS. 461

elytra relatively shorter, shining, cyaneous in tint, and more finely and much more sparsely punctured ;
the rest as in E. violaceipennis.

Length 11 millim.; breadth 53-51 millim. ( 2.)
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Two female examples. This insect apparently replaces EL. violaceipennis in the State
of Panama; but, on account of the above differences, Iam unable to treat it as a
variety or local form of that species.

PROSTENUS.

Prostenus, Latreille, Fam. nat. du Régne anim. p. 377 (1825) ; Lacordaire, Gen. Col. v. p. 513
(1859).

Xystropus, sect. Mecocerus, Solier, Ann. Soc. Ent. Fr. iv. p. 241 (1835).

This interesting genus contains a number of species in Tropical and Subtropical South
America, very few of which have been described as yet; one inhabits the southern
portion of our region. The antenne have their outer joints very large and much
flattened, often foliaceous or exceedingly broad; the femora are clavate towards the
apex; and the intercoxal process is very broad. ‘The thorax varies in shape in the
different species from transverse to as long as broad.

1. Prostenus panamensis. (Tab. XXI. fig. 6, ¢.)

Elongate, rather convex, piceous-brown with a bronzy tint, the upper surface opaque, more or less olivaceous,
and clothed with long and erect scattered hairs, and also somewhat thickly pubescent. Head coarsely
and rugosely punctured; eyes transverse, convex, and widely separated ; antenne metallic violaceous or
cupreo-violaceous, very stout, much flattened, and very rapidly widening outwardly in both sexes, in the
male reaching far beyond the middle of the elytra, in the female shorter, joints 3 and 4 subequal, 8-10
exceedingly large and broad, equal in length, and each much widened towards their apex, 11 very much
longer than 10; prothorax fully as long as broad, very convex, the sides a little narrowed and sinuate
behind and feebly rounded in front, the hind angles rather sharp, the base slightly rounded, the basal
fovere obsolete, the surface very densely and rugosely punctured; scutellum with a few scattered punc-
tures, rather shining ; elytra rather long, parallel in their basal half, very much broader than the prothorax,
rather convex but flattened on the disc, with rows of moderately fine, very deep punctures, which beyond
the middle rapidly become very much finer and shallower, the interstices perfectly flat, very minutely
punctured, and each with a row of very widely separated coarser punctures, the latter each bearing a long,
erect hair; beneath a little more shining, dark bronze, finely and rather sparsely punctured, the last
ventral segment more closely so; legs dark bronze, with a slight violaceous tinge, long, the femora clavate
in their outer half.

Length 8-9 millim.; breadth 23-3 millim. (dQ .)

Hab. Panama, Bugaba 1000 feet (Champion).

Five examples. ‘This elegant insect is allied to one er two undescribed species from
the Amazons.

462 HETEROMERA.

LYSTRONYCHUS.

Lystronichus, Uatreille, Régne anim. 2nd edit. v. p. 41 (1829).
Lystronychus, Lacordaire, Gen. Col. v. p. 514 (1859).
Xystronia, Solier, Ann. Soc. Ent. Fr. iv. p. 238 (1835).

About twelve species of this genus have been described, though many others exist
in collections. The three species here enumerated each have the antenne of a
somewhat different structure; they agree, however, well enough in other respects.
Lystronychus is chiefly confined to Tropical America; two species are known to me
from Texas, and Prostenus californicus, Horn, doubtless belongs to it. JZ. scapularis
somewhat approaches Prostenus in the structure of the antenne, but differs in the
non-clavate femora.

1. Antenne very long, slender, and filiform ; upper surface unicolorous, opaque.

1. Lystronychus piliferus. (Tab. XXI. fig. 7.)

Oblong ovate, feebly convex, obscure reddish-brown, opaque, above usually of a pruinose bluish-violet, obscure
purplish, or greenish-bronzy tint, the surface somewhat thickly clothed with long erect hairs, and also
sparsely pubescent. Head closely and coarsely punctured ; eyes rather large; antenne filiform, very long
and slender, in the male reaching far beyond the middle of the elytra, joints 3 and 4 long, about equal,
5-11 increasing a little in length, varying in colour from ferruginous to piceous; prothorax not much
broader than long, the sides dilated at the middle, constricted behind, and rounded and a little more
narrowed in front, the hind angles somewhat prominent, the base subtruncate (or very slightly rounded)
and very feebly margined, the basal foves indistinct or obsolete, the disc unimpressed, the surface finely and
very densely punctured; scutellum closely and finely punctured; elytra moderately long, with rows of
very minute punctures placed upon obsolete strive, the interstices flat and each with a row of scattered
coarser punctures, the punctures bearing long erect hairs; beneath more shining, the ventral surface some-
what closely and finely, the metasternum sparsely and more coarsely, punctured; legs long and slender,
clothed with short bristly hairs, piceous or ferruginous, the basal half of the femora often testaceous, the
femora not swollen towards the apex, the basal joint of the hind tarsi long.

Length 6-83 millim.; breadth 2-3} millim. (¢ 2.)

Hab. Norta America, Texas (coll. Dr. Horn).—Mexico (coll. F. Bates), Matamoros
Izucar, Colima city, Oaxaca, Tapachula in Chiapas (/Hége), Tepansacualco, Cordova
(Sailé) ; Guatemaua, San Juan in Vera Paz, Tocoy, El Jicaro, San Geronimo (Champion),
Chinautla (Salvin); Nicaragua, Chontales (Belt, Janson).—CotomsBiA, Bogota; BraziL.

A widely distributed and not uncommon species in Central America, extending
northwards to Texas and southwards to Brazil. An example from Mexico in Mr. F.
Bates’s collection from that of Dejean is labelled “ Gen. nov. piliferum,” and another
from Colombia “ geniculatus, Reiche.” This insect bears a rather different facies to
the typical Lystronychi, L. equestris, L. pulchellus, &c., on account of the still longer
and more filiform antenne, larger eyes, and more depressed form. ‘The basal half
of the femora is frequently testaceous, about half the large number of specimens
before me being thus coloured. Dark-coloured individuals have the upper surface of

LYSTRONYCHUS. 463

a pruinose or iridescent bluish-violet tint. The example from Texas has been kindly
communicated by Dr. Horn.

Allied species are found in Tropical South America and southwards to Parana.

2. Antenne shorter and stouter, subjiliform ; head and thorax dull cYaneous,
the elytra metallic cupreous.

2. Lystronychus purpureipennis. (Tab. XXI. fig. 8.)

Oblong ovate, rather convex, dull cyaneous with an eneous tinge, the elytra shining and of a rich metallic
purplish-cupreous tint, the surface clothed with long and erect scattered hairs. Head coarsely and
densely punctured; eyes small; antenne cyaneous, rather short and stout, not reaching to the middle
of the elytra, subfiliform, joints 3 and 4 equal, 5-11 longer than broad, and increasing a little in length
outwardly, 11 much longer than 10; prothorax transverse, moderately convex, the sides dilated at the
middle, constricted behind, and rounded and about equally narrowed in front, the hind angles rather
sharp, the basal fovez obsolete, the surface punctured like that of the head; scutellum transverse, with
scattered punctures, cyaneous, shining; elytra moderately long, subparallel in their basal half, with
rows of moderately fine, deep, closely placed punctures, the interstices quite flat, and each with a row
of more scattered punctures, the alternate punctures coarser and bearing a long erect hair, the punctures
on the sutural interstice more irregular; beneath shining, dark cyaneous, closely punctured; legs dark
cyaneous, setose, the claws ferruginous.

Length 63 millim.; breadth 25 millim.

Hab. Guaremata, Teleman (Champion).

A single example, apparently a male, captured by myself in the lower part of the
Polochic valley.

A species distinguished by its coarsely punctured dull cyaneous head and thorax,
cyaneous scutellum, and purplish-cupreous shining elytra. In colour this insect
resembles L. (Xystronia) cupripennis, Lac., from Matto Grosso; but it has the thorax
transverse (not so long as broad), and, moreover, is only about half the size of that

species.

3 Antenne stout, with dilated serrate joints in the male; upper surface
opaque, black, the elytra with a red humeral spot.

3. Lystronychus scapularis. (Tab. XXI. fig. 9, 3.)

Moderately elongate, rather convex, black or piceous, sometimes with a bluish tinge, the elytra each with a
red humeral patch, above very dull and opaque, the surface clothed with long and erect scattered hairs.
Head short, coarsely and very rugosely punctured; eyes large, rather narrowly separated in the male,
more distant in the female; antenne dark cyaneous or bluish-black, stout, in the male about reaching to
the middle of the elytra, joint 3 much shorter and smaller than 4, joints 4-10 long and wide, flattened,
and serrate within, and 11 much longer than 10—in the female shorter, and with joints 4-10 less
widened; prothorax transversely convex, much broader than long, the sides strongly and abruptly
constricted behind, broadly dilated at the middle, and there armed with two or three strong teeth, and
rounded and narrowing in front, the hind angles acute, the base with a broad rounded median lobe, the
basal fover obsolete, the surface coarsely and very densely punctured; scutellum transverse, sparsely
punctured ; elytra moderately long, with rows of fine but deep approximate punctures, the interstices
quite flat, and each with a row of minute punctures, amongst which are scattered other coarser

464 HETEROMERA.

setiferous ones; beneath shining, sparsely punctured ; legs black or piceous, the basal half of the femora
sometimes red, sparsely setose, moderately long.
Length 53-8 millim.; breadth 2-33 millim. (¢ 2.)

Hab. Mexico, Temax in N. Yucatan (Gawmer); Guaruma.a, Zapote, Las Mercedes
(Champion); Nrcaraeua, Chontales (Belt, Janson); Panama, Bugaba, Tole (Champion).

Numerous examples. This species resembles the Colombian L. denticollis, Makl., in
the shape of the thorax and other particulars, but has the joints 4-11 of the antenne
in the male widened and flattened; in the last-named character L. scapularis approaches
the genus Prostenus. The elytra are coloured as in the undescribed L. humeralis of
South America.

XYSTROPUS.
Xystropus, Solier, Ann. Soc. Ent. Fr. iv. p. 241 (1835); Lacordaire, Gen. Col. v. p. 515 (1859).

This genus is peculiar to Tropical America. Thirteen species have been described,
and numerous others are enumerated in Gemminger and Harold’s catalogue; three of
the former extend northwards into the Central-American region. These insects are
found upon bushes on the savannas of the low country, and are usually common where
they occur.

1. Upper surface more or less cupreous, coarsely punctured.

1. Xystropus fulgidus, (Tab. XXI. fig. 10.)
Prostenus fulgidus, De}. in litt.
Xystropus fulgidus, Makl. Act. Soc. Fenn. x. p. 680°.
Hab. Mexico, Tehuantepec (Sallé); Nicaracua, Chontales (Janson, Belt); Panama,
Bugaba, Volcan de Chiriqui, David, Caldera, San Feliz, San Lorenzo, Los Remedios,
Tolé (Champion).—CotomsiA! (coll. F. Bates).

This insect is abundant in the State of Panama. It varies in colour from a bright
metallic golden-green with cupreous tints to fiery cupreous, and in length from 8-10
millim. The Mexican locality requires verification.

2. Upper surface of a brassy tint, finely punctured.

2. Xystropus fallax. (Tab. XXI. fig. 11.)
Prostenus equinoctialis, Dej. Cat. 8rd edit. p. 234°.
Xystropus fallae (De}.), Makl. Act. Soc. Fenn. x. p. 677’.

Hab. Panama, Bugaba, David, Caldera, San Feliz (Champion).—Cotomsia! ? (coll.
_F. Bates).

Found in Chiriqui in company with X. lebasiz, but in smaller numbers. According
to an example in Mr. F. Bates’s collection from that of Dejean, Prostenus equinoctialis

XYSTROPUS.—CTEISA. 465

is synonymous with X. fallax, Mikl. Numerous allied forms, undescribed as yet, are
known from South America.

3. Xystropus lebasi. (Tab. XXI. fig. 12.)
Prostenus lebasii, De}. Cat. 3rd edit. p. 2347.
Xystropus lebasii, Makl. Act. Soc. Fenn. x. p. 679”.
Hab. Panama, Bugaba, Volcan de Chiriqui, David, Caldera, Tolé (Champion).—
CoLomBiA, Cartagena! (coll. F. Bates).

Found in abundance in Chiriqui in company with X. fulgidus and X. fallax.
Chiriqui examples agree perfectly with an individual from Cartagena in Mr. F. Bates’s
collection. This species is readily separated from X. fallax by its smaller size and
posteriorly constricted thorax.

CTEISA.
Cteisa, Solier, Ann. Soc. Ent. Fr. iv. p. 242 (1835); Lacordaire, Gen. Col. v. p. 516 (1859).

This Tropical-American genus contains three or four closely allied species ; two only
have been described as yet, one of which extends northwards to the State of Panama.
The three other species enumerated in Gemminger and Harold’s catalogue are doubtfully
distinct from these.

1. Cteisa pedinoides. (Tab. XXI. fig. 13.)
Cteisa pedinoides (Dej.), Makl. Act. Soc. Fenn. x. p. 681°.
Hab. Panama, Bugaba, Volcan de Chiriqui, Caldera, David, Tolé (Champion).—
CotomBiaA!; VENEZUELA, Cumana.

Found in plenty by myself in Chiriqui, chiefly in the savanna region of the low
country. Miaklin’s description appears to have been made from an abraded example.
C. pedinoides is closely allied to the Brazilian C. hérta, Sol.; it differs in its smaller
size, shorter antennz, and in the sides of the thorax being rather straighter behind.
The anterior tibiz are slightly dilated on the inner side about the middle in the male.
The pubescence and sculpture of the upper surface is similar to that of C. hirta.

Fam, OTHNIIDA.

The single known genus of this family was placed by Pascoe in the Melandryide,
and by Leconte (Class. Col. N. A. p. 102) as a separate family in the Clavicorn-series
near the Cryptophagide. Leconte and Horn, however, in the second edition of the
‘Classification of the Coleoptera of North America’ (p. 391), place the Othniide in the
Heteromerous-series immediately after the Cistelide.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1888. 300

466 HETEROMERA.

OTHNIUS*.

Elacatis, Pascoe, Journ. Ent. i. p. 52 (1860) ; Gemminger & Harold, Cat. iii. p. 905.

Othnius, Leconte, Class. Col. N. Am. p. 103 (1861) ; Horn, Trans. Am. Ent. Soc. 1868, p. 182, and
1871, p. 8333 ; Leconte & Horn, Class. Col. N. Am. p. 891 (1883) ; Horn, Trans. Am. Ent.
Soc. 1888, p. 27, t. 3. figg. 24, a, b,c; Gemminger & Harold, Cat. Col. vii. p. 2063.

Eight species of Othnius have been described, and these show a very remarkable
distribution, three being from the Eastern Archipelago f (Borneo, Ceylon, Batchian, and
New Guinea), four from North America, and one from Mexico; six are now known
from Central America, the genus ranging throughout our region. O¢hnius is not closely
allied to any known genus, and is very easily recognized by its prominent eyes and
general facies (resembling various Cleride); the tarsi are all heteromerous in both sexes.
In all the Central-American species the elytra are intricately and more or less distinctly
spotted or marked with testaceous (their general pattern will be best understood from
our figures); and the antenne have the last three joints widened and forming a very
distinct club (the N.-American O. longicornis is described as having the three outer
joints very feebly clavate in the male only), the ninth joint in the male of one of our
species, O. antennalis, being obliquely produced within. Dr. Horn (Trans. Am. Ent.
Soc. 1888, p. 28, t. 3. fig. 24, 6) states that the males may be distinguished by the
mentum having a foveate hairy depression on each side of the middle. This character
I do not find of much value in separating the sexes of the Central-American species,
the females of the two examined (0. mexicanus and O. sticticopterus) also having the
mentum shallowly foveate on each side; the last-mentioned sex may, however, be
distinguished by the elytra having a common sutural oblong depression (very distinct
in O. mexicanus, Horn) at a little distance before the apex, the depression being absent
in the male. The different species are found upon herbage, and are very active; one
has been found under decomposing Opuntia-leaves and another in the withered stems
of Senecio; they are doubtless of predatory habits. ;

The following table will assist in the identification ef the Central-A merican
species :—

Antenne short, not or scarcely reaching the base of the prothcrax.
. Head and prothorax opaque, densely rugose, and clothed with appressed

hairs... . . - 2 « senecionis.
Head and prothorax shining, closely and coarsely punctured, sparsely
‘pubescent. . . . 2 1 wp ew ew ew we soe 6 « « .) antennalis.

* The name Othnius is here adopted in preference to Elacatis for this genus, as the author of the latter
suggests (Ann. & Mag. N at. Hist. ser. 4, viii. p. 347) that the name Othniide should be retained for the
family ; moreover, there is a prior Hlacate already in use in Zoology (Cuvier, 1829).

+ Mr. Pascoe has kindly lent me one of these for comparison with the American forms, with which it seems
to be absolutely congeneric.

OTHNIUS. 467

Antenne moderately long, at least reaching to the base of the prothorax.
Head and prothorax very closely and coarsely punctured.
Antenne with joints 9 and 10 transverse; elytra with numerous
fusco-testaceous spots and angular markings . . . . . . multiguttatus.
Antenne with joints 9 and 10 as long as broad; elytra with
markings more indistinct, and in the form of narrow zigzag
fascie 2... ee ee ee ee ee tintricatus.
Head and prothorax sparsely and coarsely punctured.
Elytra with a broad angulated band behind the middle, a small
spot on either side of the suture before the apex, and some
other markings towards the base, testaceous. . . . . . . mewicanus.
Elytra with a broad angulated band before the middle, another
(but narrower) one behind the middle, and the apex, testaceous _ sticticopterus.

1. Othnius senecionis. (Tab. XXI. fig. 14.)

Blackish-brown, opaque, the elytra slightly shining, the head and prothorax densely clothed with short appressed
hairs, the elytra with longer and more scattered decumbent ashy hairs. Head very densely and rugosely
punctured, the intraocular space convexly raised in the middle, the eyes moderately large; antenne
very short, not reaching the base of the prothorax, joints 9 and 10 strongly transverse, ferruginous,
the last three joints a little darker; prothorax very convex, the sides much rounded, about equally
narrowing before and behind, and shallowly emarginate behind the middle, the emargination preceded
and followed by a short tooth, the hind angles rather acute, the surface very densely and rugosely
punctured throughout, velvety-blackish-brown, with a longitudinal stripe on the middle of the disc
white ; elytra long and convex, subparallel, dark bronze with an irregular network of testaceous markings,
densely and not very finely punctured, the punctures coarser towards the base ; legs ferruginous.

Length 53-53 millim. (¢ @.)

Hab. Mexico, near the city (Flohr).

Two examples. This very distinct new species has been kindly forwarded to me by
My. Flohr, who states that he found it in withered stems of Senecio. O. senecionis is
.. «more convex than any of the other species enumerated here, from which its very short
antenn, rugose and opaque head and thorax, intricate elytral pattern, and other
characters mentioned above abundantly distinguish it. ‘The intricate elytral markings.
will be best understood from our figure.

9. Othnius antennalis. (Tab. XXI. figg. 15; 15, a, antenna.)

Dark bronze, shining, sparsely clothed with short ashy decumbent hairs. Head closely and coarsely punctured ;
antennse testaceous, short, about reaching to the base of the prothorax, joints 9 and 10 very strongly
transverse, 9 obliquely produced on its inner side; prothorax moderately transverse, coarsely and closely
punctured, the punctures more scattered on the anterior half of the disc, the disc with a narrow ill-defined
longitudinal space in the middle impunctate, the sides feebly emarginate before and behind the middle, and
with a short tooth before and behind the emarginations, the hind angles rather obtuse; elytra subparallel,
rather finely and somewhat thickly punctured, the punctures coarser towards the base, marked thus :—
an oblique stripe extending from the shoulders nearly to the suture (separated from a triangular scutellar
patch by an oblique stripe of the ground-colour), a common sutural patch about the middle, a zigzag band

3 00 2

468 HETEROMERA.

behind the middle (not extending to the lateral margin), and the apices, testaceous ; legs ferruginous, the
middle of the femora a little darker.
Length 4 millim. (6.)

Hab. Mexico, Jalapa (Hége).

One specimen only. This species may be distinguished from O. mexicanus and
O. sticticopterus by the much more thickly punctured head and thorax, different elytral
pattern, and the short and peculiarly formed antenne (fig. 15 a); and from O. multi-
guttatus and O. intricatus by its more sparsely punctured thorax, different elytral
pattern, and short antenne. The specimen described is a male, the female may
possibly have a differently-shaped ninth antennal joint.

3. Othnius multiguttatus. (Tab. XXI. fig. 16.)

Dark bronze, shining, sparsely clothed with short ashy decumbent hairs. Head coarsely and very closely
punctured; antenne moderately long, joints 9 and 10 transverse, ferruginous, the last three joints
piceous; prothorax transverse, coarsely and closely punctured, a narrow ill-defined longitudinal space on
the middle of the disc impunctate, the surface rather uneven and usually with one or two irregular
depressions on either side of the disc posteriorly, the sides feebly emarginate before and behind the
middle and with a short (sometimes indistinct) tooth before and behind the emarginations, the hind
angles distinct ; elytra subparallel, sparsely and rather finely punctured, the punctures coarser towards
the base, the surface with numerous fusco-testaceous angular markings and irregularly shaped spots ;
beneath dark bronze, the venter reddish-brown, sparsely punctured, the middle of the metasternum and
the ventral surface almost smooth; legs ferruginous, the femora and the middle of the tibie sometimes
piceous.

Length 33-43 millim. (¢ 9.)

Hab. Gvatemata, Capetillo, Zapote, near the city, Purula (Champion).

Many specimens. 0. multiguttatus is abundantly distinct from all other species of
the genus noticed here, as will be seen by a reference to our figure. The suture of the
elytra is narrowly longitudinally depressed at a little distance before the apex in the
female.

4. Othnius intricatus. (Tab. XXI. fig. 17.)

Dark bronze with a slight cupreous tint, slightly shining, sparsely clothed with short ashy decumbent hairs.
Head coarsely and densely punctured ; antenne comparatively long and stout, joints 9 and 10 as long as
broad, ferruginous, the last three joints a little darker ; prothorax not much broader than long, densely
and coarsely punctured, the surface rather uneven and with a shallow depression on either side of the
disc before and behind the middle, the disc itself also a little depressed before the middle and with a
smooth slightly raised line in the centre, the sides very feebly emarginate behind, the hind angles distinct ;
elytra subparallel, rather closely, shallowly, and finely punctured, the punctures coarser towards the base,
the surface lighter in tint than the prothorax, and with the shoulders and numerous indistinct zigzag
transverse bands fusco-testaceous, the transverse bands very little lighter than the ground-colour and (as
usual) bearing hairs of a more ashy tint than the rest of the surface ; legs ferruginous.

Length 43 millim. (9.)

Hab. Guatemata, San Gerénimo (Champion).

A single example. More elongate and duller than O. multiguttatus ; the head and

OTHNIUS. 469

thorax still more densely punctured ; the antenne longer and stouter and with the
ninth and tenth joints as long as broad ; the elytra longer, and with the markings less
distinct and in the shape of narrow zigzag bands. Of the North-American species, it

appears to come nearest to O. umbrosus, Lec. The suture of the elytra is feebly longi
tudinally depressed towards the apex.

5. Othnius mexicanus, (Tab. XXI. fig. 18, 2.)
Othnius mexicanus, Horn, Trans. Am. Ent. Soc. ii. p.133', and v. p.151; Chevr. Rev. et Mag. Zool.
1874, p. 328°.
Hab. Mexico !?, Cordova, Toxpam (Sallé), Jalapa (Hoge); Guaremata, Chiacam,
Senahu, Cerro Zunil (Champion) ; Panama, Pefia Blanca (Champion).

The numerous specimens before me (two of which have been examined by Dr. Horn)
vary a little in the extent of the testaceous markings of the elytra (in one example the
zigzag band of the ground-colour is not connected at the suture), but the general
pattern is quite constant and all have a small spot on either side of the suture towards
the apex. In the female the common sutural foveate depression towards the apex of
the elytra is very distinct. 0. mexicanus varies in length from 4-53 millim.

6. Othnius sticticopterus. (Tab. XXI. fig. 19.)

Dark brownish-bronze, shining, somewhat thickly clothed with short suberect ashy hairs. Head and prothorax
sparsely and coarsely punctured ; elytra subparallel towards the base, a little rounded about the middle,
somewhat closely and not very finely punctured, the punctures coarser towards the base, marked thus :—
a broad band before the middle (angulated on its lower edge outwardly) extending obliquely upwards to the
shoulders, but not reaching the lateral margin, and enclosing a common basal patch of the ground-colour
(in which at the base on either side of the scutellum is a testaceous spot), an angulated band behind the
middle, narrowing outwardly and not reaching the lateral margin, and the apex (rather broadly),
testaceous; legs and antennz testaceous.

Length 5-54 millim. (¢ 9.)

Hab. Mexico, Jalapa (Hége).

Three examples. This species is closely allied to 0. mexicanus, from which it is only
distinguished by the different system of the elytral markings :—In 0. mexicanus there is a
broad band behind the middle (instead of before, as in O. sticticopterus), and behind this
a testaceous spot (instead of a second angulated band) on either side of the suture (not
mentioned in Dr. Horn’s description), and the apex is never broadly testaceous, the
- apical margin at most being very narrowly so.

The female has the suture of the elytra very distinctly depressed on each side (in the
form of a common oblong depression) some distance before the apex.

470 HETEROMERA.

Fam. NILIONID.

This is a family of small extent, the species of which, owing to their hemispherical
shape, resemble the Erotylid-genera Zigithus and Coccimorphus, and also the larger forms
of Coccinellide. Two genera only are known—WNilio, containing 19 described species,
all peculiar to Tropical America, the genus ranging as far north as Mexico ; and Hades,
containing a single species from Java. Thomson in his monograph of the Nilionide
[Musée scientifique, pp. 5-14, 45, 46 (1860)] also includes Catapotia (a genus containing
a single species, C. levissima, Thoms., which is not uncommon throughout the Central-
American region from Mexico to Panama) in it. This genus, as I have satisfied myself
by the microscopic examination of authentic specimens from Mexico from the Sallé
collection, has all the tarsi 4-jointed* (the third being comparatively very short) and
very long and slender; and, in fact, it has nothing to do with the Heteromerous-series.
Catapotia (of which excellent figures, less the tarsi, are given by Thomson, op. cit. t. 2.
fieg. 2, 2 a-d) doubtless belongs to the Erotylide or to the Endomychide.

The different species of Nilio are found about fungoid growth on decaying trees, and
they are very sluggish in their movements.

NILIO.

Nilio, Latreille, Hist. nat. Crust. et Ins. iii. p. 179 (1802), and x. p. 8383 (1804) ; Lacordaire, Gen.
Col. v. p. 519 (1859) ; Thomson, Monogr. in Musée scientifique, p. 7, t. 1. figg. 1 a-g (1860).

Four species of this genus inhabit Central America, one only of which was previously
described ; these all have the elytra (if viewed from above) subtruncate at the base.
The following table will assist in the recognition of the Central-American species :—

Antenne with joints 4-11 black.
Size large (6 millim.) ; elytra very broad and with prominent shoulders sallei.
Size smaller (4-5 millim.) ; elytra narrower and with more rounded
shoulders . 2. 2. 1. 1 1 ee ee we ee ww ee. fuulvo-pilosus.
Antenne with joints 6-11 black.
Elytra coarsely punctate-striate throughout, the interstices almost
smooth . 2. 6. 1 1 ee we ee ew we ew ww thomson.
Elytra more finely punctate-striate, the interstices thickly punctured . chiriquensis.

1. Nilio sallei.
Nilio sallei, Thoms. Mus. scient. p. 10, t. 3. fig. 4°.

Hab. Mexico!, Cordova (Sallé); Guatemata, Cubilguitz (Champion), Coban
(Conradt).

* In Thomson’s figure, op. cit. t. 4. f. 5, the tarsi as represented are purely imaginary, and they bear no.
resemblance to those of C. levissima.

NILIO. 471

The Guatemalan examples are of a more fulvous and unicolorous tint than the two
before me from Mexico.

2. Nilio fulvo-pilosus.

Brownish-fulvous, slightly shining, the elytra rather darker and sometimes of a redder tint, the sides of the
prothorax and of the elytra (broadly) and the suture (narrowly) reddish-testaceous, the entire upper surface
densely clothed with erect fulvous hairs. Head sparsely and somewhat coarsely, the prothorax more
finely and sparingly, punctured; antennz with joints 4-11 piceous or black, the rest testaceous ; elytra
almost straight at the base (if viewed from above), the shoulders somewhat rounded and only moderately
prominent, each with nine regular rows of rather coarse punctures placed upon shallow stris, the punc-
tures not finer towards the apex, the interstices almost flat and (when viewed under a strong lens)

sparsely and minutely punctured; legs and under surface obscure testaceous.
Length 4-5 millim.; breadth 3-33 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Numerous examples. J. fulvo-pilosus may be easily separated from NV. chiriquensis
by the much smoother interstices, more regularly punctured strie, and less prominent
shoulders of the elytra, differently-coloured antenne, fulvous pubescence, narrower
shape, &c. The shoulders are more rounded than in the other Central-American
species. The Colombian J. lafertei, Thoms., is apparently an ally of this insect; but
the former is described as having joints 3-11 of the antenne black, the elytral inter-
stices punctured, and the colour red. NV. fulvo-pilosus was found in company with
N. chiriquensis, but much more sparingly.

3. Nilio thomsoni. (Tab. XXI. fig. 20.)

Brownish-fulyous with the sides of the prothorax and of the elytra(broadly) and the suture (narrowly) lighter,
or unicolorous red, slightly shining, thickly clothed with erect fulvous hairs. Head and prothorax mode-
rately finely and somewhat sparsely punctured, the disc of the latter smoother; antennz with joints 6-11
piceous or black, the rest testaceous; elytra almost straight at the base (if viewed from above), the
shoulders prominent, each with nine rows of coarse punctures placed upon shallow stri, the punctures
becoming coarser and a little more scattered towards the sides and apex, the interstices feebly convex and
(when viewed under a strong lens) very sparsely and very minutely punctured; legs obscure testaceous.

Length 43-5 millim.; breadth 33-43 millim.

Hab. Guatemata, Teleman (Champion) ; Nicaracua, Chontales (Belt, Janson).

Three examples only. This species is chiefly distinguished by its coarsely punctured
strize, the punctures still coarser towards the sides and apex, and almost smooth inter-
stices of the elytra; it is allied to NV. fulvo-pilosus. One of the two specimens from
Nicaragua is of a unicolorous-red colour, but does not differ otherwise from the others.

4, Nilio chiriquensis, (Tab. XXI. fig. 21.)

Brownish-piceous with a slight bronzy tint, slightly shining, the head, the sides of the prothorax (broadly) and
of the elytra, and the suture (narrowly) obscure testaceous, the entire upper surface densely clothed with
erect cinereous hairs. Head and prothorax finely and sparsely punctured, the disc of the latter smoother ;
antenne with joints 6-11 piceous or black, the rest testaceous ; elytra almost straight at the base (if viewed

A472 HETEROMERA.

from above), the shoulders prominent, each with nine rather irregular rows of moderately coarse punctures
placed upon shallow striz, the punctures becoming a little finer towards the apex, the interstices almost
flat (or very feebly convex) and finely and thickly punctured throughout ; legs and under surface obscure
testaceous.

Length 4-5 millim.; breadth 33-4 millim.
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Found in abundance by myself in Chiriqui, in old forest-clearings. This species may
be at once separated from the others noticed here by its thickly punctured elytral inter-
stices; it resembles WV. sallw@i in its general shape. N. chiriquensis and N. fulvo-pilosus
are smaller than any other species of the genus yet described.

Fam. MONOMMIDZA.

This family was formerly placed between the Throscide and the Eucnemide; but it
is now generally regarded as belonging to the Heteromera. Two genera only have
hitherto been described, one from the Eastern and one from the Western hemisphere ;
we have to notice a third from Central America. The characters of the family as given
by Lacordaire, Thomson, Leconte, and Horn now require modification, the new genus
here described having a 2-jointed club to the antenne.

HYPORHAGUS.
Hyporhagus, Thomson, Ann. Soc. Ent. Fr. 1860, p. 25.

This New- World genus contains twenty-one described species, the majority of which are
from Tropical South America: four are known from the southern United States, two from
Mexico, two from the Antilles, and one from as far south as Monte Video. Hyporhagus
is closely allied to Monomma and is chiefly distinguished from that genus by the
rounded (not emarginate) anterior outline of the thorax. We have now to record eight
species of Hyporhagus from Central America, three of which are described as new.
One species has been found beneath fallen Opuntias ; those captured by myself were
beaten from herbage, or from the withered branches of fallen trees.

The Central-American representatives may be tabulated as follows :—

Upper surface dull.
Elytra with costate strie . . . . . . ee ee ee) ocostulatus.
Elytra punctate-striate.

Thorax long and strongly margined .

opuntie, gilensis.
Thorax shorter and more feebly margined .

durangoensis.

HYPORHAGUS.

Upper surface more or less shining.

Mesosternum broadly and shallowly arcuate-emarginate in front.

Form ovate or oblong ovate, moderately convex.

473

Elytral strize feebly costate laterally yucatanus.
Elytral strize not costate laterally . . . . « bevepunctatus.
Form short ovate, very convex; elytral striz almost obli-
terated on the disc from a little before the middle, coarsely
punctured at the base toe ee ee ee). Obliteratus.
Mesosternum very deeply and semicircularly emarginate in front. emarginatus.

1. Hyporhagus costulatus.

Hyporhagus costulatus, Thoms. Monogr. in Ann. Soc. Ent. Fr. 1860, p. 34, t. 8. fig. 12°.

Hab. Muxico, Yucatan (coll. Mniszech ').

Unknown to me.

2. Hyporhagus opuntiz. (Tab. XXI. fig. 22.)
Hyporhagus opuntie, Horn, Trans. Am. Ent. Soe. iv. p. 149°.

Hab. Norra America, Arizona 1.—Mextico, Northern Sonora (Morrison).

Twelve examples have been sent to us by the late Mr. Morrison ; these vary from

42-64 millim. in length.

8. Hyporhagus gilensis.
Hyporhagus gilensis, Horn, Trans, Am. Ent. Soc. iv. p. 149°.

Hab. Norru America, Arizona}.

This species is recorded from south of the Gila River, from just within our northern

boundary.

4. Hyporhagus durangoensis, (Tab. XXI. fig. 23.)

Oblong ovate, black, subopaque, the head, the prothorax anteriorly and laterally (broadly but indeterminately),

the margins of the elytra (indistinctly), and the under surface, legs, and antennee, obscure rufous. Head
very finely and densely punctured, behind the eyes much more coarsely so; prothorax transverse, the sides
rapidly converging from the base and a little rounded anteriorly, the surface thickly and rather coarsely
punctured (more coarsely so than the anterior part of the head), the punctures here and there longitudinally
confluent towards the sides, the latter only very shallowly impressed within the moderately prominent
lateral margins ; elytra rather narrowly margined, with fine, shallow, sharply-cut strie, the strie all
distinct (the two inner ones on each side of the suture shallower than the others) and with fine shallow
closely placed punctures, the interstices sparsely, very shallowly, and minutely punctured, the punctures
closer and more distinct at the extreme base, the disc a little more shining than the rest of the surface ;
beneath very sparsely and minutely punctured, the metasternum at the sides rather coarsely and irre-
gularly punctured and wrinkled; mesosternum broadly and shallowly arcuate-emarginate in front.

Length 42 millim.; breadth 23 millim. (@.)
Hab. Muxtco, Ventanas in Durango (Hoge).
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1888.

3 PP

474 HETEROMERA.

A single (rather immature) example. Allied to the two preceding species; but with
the thorax much shorter and with the lateral margins less prominent and not so deeply
grooved within, and the strie of the elytra much more finely and closely punctured.
The last-mentioned character will separate it from H. opaculus, Lec.

5. Hyporhagus yucatanus.
Hyporhagus yucatanus, Thoms. Monogr. in Ann. Soc. Ent. Fr. 1860, p. 38, t. 3. fig. 3°.

Hab. Mexico, Merida and Temax in North Yucatan (Gaumer), Yucatan '.

The numerous specimens received from Mr. Gaumer differ from Thomson’s description
and figure in having the margins of the elytra less distinctly rufescent ; but this may
be due to discoloration. H. yucatanus is broader and more depressed than any of the
other species of the genus inhabiting Central America. The three basal joints of the
anterior tarsi are dilated in the male.

6. Hyporhagus levepunctatus.
Hyporhagus levepunctatus, Thoms. Monogr. in Ann. Soc. Ent. Fr. 1860, p. 30, t. 3. fig. 10 (¢)’.
Hyporhagus lecontei, Thoms. loc. cit. p. 81, t. 3. fig. 11 (2)? (apud Horn, Trans. Am. Ent. Soe. v.
p. 151°).
Hab. Mexico, Almolonga (Flohr); Guatemata, El Tumbador, Pantaleon, San Ger6-
nimo, Chaco} (Champion) ; Nicaracua, Chontales (Janson); Panama, Bugaba (Champion).
—CoLompia },

The Central-American specimens before me from the above localities are doubtless
referable to this species. According to Dr. Horn®, who has examined the types of
Thomson’s species, H. lecontei is the male of H. levepunctatus; the former, moreover,
is not from California as stated 2, but from Colombia.

In our insect the two basal joints of the anterior tarsi are a little dilated in the male,
and the mesosternum is broadly and shallowly arcuate-emarginate in front. H. fusciceps,
Thoms., also from Colombia, appears to be very closely allied to H. levepunctatus, but
to differ from it in the more coarsely punctured elytral strie.

7. Hyporhagus emarginatus. (Tab. XXI. fige. 24,3; 24a, mesosternum.)

Oblong ovate, black, shining, the head anteriorly, the prothorax anteriorly and at the sides (broadly), the
margins of the elytra, and the legs and antenne, red. Head densely and not very finely punctured ;
prothorax transverse, the sides converging from the base, a little rounded, and rather deeply grooved within
the prominent lateral margins, the surface sparsely, equally, and somewhat finely punctured; elytra
broadly margined, with rows of shallow rather fine punctures placed upon very fine shallow striz, the
punctures becoming still finer towards the sides and apex, the interstices finely and sparsely (but quite
distinctly) punctured : beneath very sparsely and minutely punctured, the metasternum at the sides rather
coarsely and irregularly punctured and wrinkled ; mesosternum very deeply and semicircularly emarginate
in front; anterior tarsi in the male with the three basal-joints somewhat broadly dilated.

Length 37-4 millim. ; breadth 2-23 millim. (¢ 9.)

Hab, Guatema.a, Torola (Champion); Panama, Bugaba, Tolé (Champion).

HYPORHAGUS.—ASPATHINES. AT5

Six specimens from Guatemala and three from the State of Panama, all of which
were captured on the lower part of the Pacific slope and at elevations of not more
than 1000 feet. H. emarginatus closely resembles the species here identified as H. leve-
punctatus, but has a very differently-formed mesosternum ; it is also smaller in size, and
has the sides of the thorax (as well as the anterior portion) and the reflexed margins of
the elytra red, and the three basal joints of the anterior tarsi dilated in the male.

8. Hyporhagus obliteratus. (Tab. XXI. fig. 25.)

Elliptical, short, very convex, black, shining, the head anteriorly and the anterior fourth of the prothorax
rufescent, the legs and antenne fusco-ferruginous. Head finely and densely punctured ; prothorax short,
transverse, the sides a little rounded and very rapidly converging from the base, the lateral margins mode-
rately prominent and only feebly grooved within (more deeply so within the anterior angles), the surface
very sparsely and finely punctured; elytra narrowly margined, very obsoletely striate, the striz with
scattered punctures, the punctures on the disc coarse and irregular at the base and almost obliterated
beyond, the interstices with exceedingly minute scattered punctures (only visible under a strong lens) :
beneath brownish-piceous, exceedingly minutely and very sparsely punctured, the metasternum almost
smooth ; mesosternum broadly and shallowly arcuate-emarginate in front; anterior tarsi with the three
basal joints feebly dilated in the male.

Length 34 millim.; breadth 23 millim. (d.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Two male examples. ‘This distinct new species is shorter and more convex than any
Hyporhagus yet described; the general outline is elliptical, and the elytra are compa-
ratively very narrowly margined. In the elytral sculpture H. obliteratus agrees almost
exactly with Thomson’s figure and description of H. cayennensis, from Para ; the latter,
however, is of a more elongate shape, and has more broadly margined elytra, &c.

ASPATHINES.

Closely allied to Hyporhagus and differing as follows :—Antennez very short, the basal joint scarcely twice as
long as the equally stout second, joints 6-9 very strongly transverse, 10 and 11 only broadly widened and
forming a 2-jointed club; the grooves for the reception of the antennz very deep, parallel anteriorly, very
sharply curved about the middle, and extending outwardly towards the anterior angles; elytra very finely
and narrowly margined, the margins not extended and invisible from above.

This genus contains a single species, which is widely distributed in Central America.
The 2-jointed antennal club and peculiarly-formed antennal grooves—in Hyporhagus
these grooves curve gradually towards the hind angles of the thorax, in Aspathines
they are very sharply curved behind and extend upwards towards the anterior angles—
distinguish the genus at once from Hyporhagus and Monomma. ‘The elytra are convex
laterally and the margins are quite invisible from above. The anterior tarsi are very
little stouter in the male than in the female.

A. ovatus is smaller than any species of Monommide yet described.

476 HETEROMERA.

1. Aspathines ovatus. (Tab. XXI. figg. 26; 26a, antenna.)

Short ovate, very convex, eneous, very shining, the head, the prothorax anteriorly and laterally (but indeter-
minately), and the legs and antennz, more or less rufous ; head densely punctured; prothorax transverse,
the sides a little rounded and rapidly converging from the base and somewhat deeply grooved (especially
at the base and apex) within the prominent lateral margins, the surface sparsely and moderately finely
punctured, a longitudinal space in the middle of the disc impunctate ; elytra each with nine rows of rather
fine somewhat scattered punctures placed upon very shallow strie, the punctures still finer on the middle
of the disc, the discal interstices each with a median row of exceedingly minute scattered impressions (only
visible under a strong lens and sometimes obsolete), the others impunctate ; beneath brownish-piceous,
sparsely and somewhat coarsely punctured, the anterior half of the metasternum smoother; the sides of
the prosternum and the anterior edges of the meso- and metasternum immarginate, the mesosternum
truncate in front ; legs, including the tarsi, rather slender.

Length 2-3 millim.; breadth 14-2 millim. (¢ 9.)

Hab. Mexico, Temax and Merida in North Yucatan (Gaumer, Sallé); GuaTEMALA,
Mirandilla, Torola, San Geronimo (Champion) ; Panama, San Lorenzo (Champion).

Nine examples, three of which have quite recently been forwarded to me by
M. Sallé.

SUPPLEMENT.

Group EPIPHYSIDES. (To precede the group Tentyriides, p. 1.)
PIMELIOPSIS.

Mentum exceedingly large, filling the gular cavity, and covering the maxille and ligula; mandibles strongly
toothed on the upperside above, feebly cleft at the apex; last joint of the maxillary palpi narrow, feebly
triangular ; labrum not prominent ; head exceedingly large and broad, sunk into the prothorax up to the
eyes, the latter small, transverse, entire, and rather prominent, the supraocular carina distinct, the epistoma
declivous and angularly produced in the middle, confounded with the front, and limited posteriorly by a
broad shallow transverse depression, which becomes deeper laterally, the lateral lobes thickened, broadly
rounded, not prominent ; antenne extending to a little beyond the base of the prothorax, the third joint
longer than the fourth, the eleventh small; prothorax much wider than the head, short, with prominent,
acute, anterior angles, the base very feebly bisinuate and closely fitting to that of the elytra; scutellum
not visible; elytra connate, broad oval, short, obtuse behind, the width of the prothorax at the base,
subcarinate and granulate, the sides very broadly inflexed ; the epipleuree narrowing behind, only extending
as far as the apex of the second ventral segment; coxse widely separated; prosternum horizontally raised
between the cox, and meeting behind the similarly-raised mesosternum ; metasternum short, the episterna
very broad; intercoxal process of the abdomen broadly rounded at the apex; ventral segments entirely
corneous ; legs short and stout, the tibial spurs rather short ; tarsi clothed with short spiny hairs and not
sulcate beneath : body apterous, sparsely clothed with coarse decumbent hairs, the sides of the elytra with
long erect hairs.

The above generic name is proposed for a single species from Western Mexico, for
the discovery of which we are indebted to Mr. H. H. Smith. Pimeliopsis belongs to
the tribe “‘Epiphysides” of Lacordaire, and is allied to the North-American genus
Edrotes, from which it differs in the form of the head and other particulars. The
single species has very much the facies of a small Pimelia.

1. Pimeliopsis granulata. (Tab. XXII. fig. 1.)

Oblong-oval, broad, convex, dull black, above and beneath sparsely clothed with long, coarse, decumbent,
yellowish hairs, the sides of the elytra with much longer erect hairs. Head densely covered with extremely
coarse, very shallow punctures, the depressed space behind the epistoma very sparsely, finely punctate ;
prothorax convex, twice as broad as long, widest at the middle, slightly narrowed in front and behind, the
anterior angles acutely produced in front, the hind angles obtusely rectangular, the margins crenulate, the
surface punctured like that of the head, but with the punctures becoming coarsely muricate towards the sides,
the base very broadly and shallowly depressed on either side of the middle; elytra rather more than three
times as long as the prothorax, widest at the middle, slightly rounded at the sides, a little narrowed at
the base, the latter very broadly truncate, each with four faint carine, the entire surface somewhat thickly
covered with small, smooth, granular elevations, which are more regularly and more closely placed along
the suture and on the carine, the latter more distinct towards the apex and laterally, and with the hairs
more erect than upon the interstices ; the entire under surface exceedingly coarsely, closely punctate.

Length 74-9, breadth 4-5 millim.

Hab. Mextco, Venta de Zopilote in Guerrero 2800 feet (H. H. Smith).

Two examples.
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 3 QQ

478 SUPPLEMENT.

TRIOROPHUS (p. 1).
Triorophus nodiceps (p. 2).
To the Mexican locality given, add :—San Felipe Sabinas in Coahuila (Flohr).

Three additional specimens of this species have been received by us from Mr. Flohr.

3. Triorophus lecontei.
Triorophus lecontei, Casey, Ann. N. York Acad. v. pp. 8327, 502 (Nov. 1890)’.

Hab. Nort America, El Paso in Texas 1—Mexico, Paso del Norte in Chihuahua,
Chihuahua city, Villa Lerdo in Durango (Hoge).

Found in abundance by Herr Hége at Villa Lerdo. Mexican specimens agree with
Capt. Casey’s description, except that many of them have the thorax as finely punc-
tured as in T. levis.

TRIMYTIS. (To follow the genus Triorophus, p. 2.)

Trimytis, Leconte, Ann. Lyceum N. York, v. p. 141 (1852); Horn, Rev. Ten. of Am. north of
Mexico, p. 261.

Three species of this genus have been described, all from the United States; two are
now added from Mexico.

1. Trimytis obovata. (Tab. XXII. fig. 2.)

Moderately elongate, obovate, very convex, pitchy-black, slightly shining. Head finely, sparsely punctate, and
with numerous short longitudinal ruge between the eyes; eyes not prominent, the orbits extending half-
way across them; middle lobe of the epistoma broadly produced, subtruncate in front; prothorax strongly
transverse, subtruncate at the base and apex, the sides gradually and obliquely converging from the base,
the anterior angles acutely prolonged in front, and with a few fine vibrisse, the disc rather finely, the
lateral portions very coarsely and deeply, punctate, the punctures towards the sides longitudinally
confluent; elytra moderately long, widest a little behind the middle, slightly narrowed in front, finely
margined at the base, with regular series of coarse deep punctures extending from the base to the middle,
almost smooth beyond, the interstices with a few very widely scattered exceedingly minute punctures, the
scutellar region more distinctly punctate; beneath exceedingly coarsely, deeply punctate, the ventral
surface with very minute scattered punctures.

Length 53 millim. (<¢.)

Hab. Mexico, Chihuahua city (Hége).

One specimen. Closely allied to 7. pruinosa, Lec., but of more obovate shape, the
anterior angles of the thorax more acute, the elytra with regular series of coarse
punctures on their basal half, their interstices almost smooth.

2. Trimytis flohri.

Elongate-ovate, rather narrow, very convex, brownish-black, subopaque. Head, including the mandibles,
rather coarsely, very densely punctate, the punctures longitudinally confluent; eyes rather prominent,
the orbits scarcely impinging upon them ; middle lobe of the epistoma broadly produced, rounded in front ;
prothorax strongly transverse, very convex, bisinuate at the base, a little narrowed in front, the sides

HETEROMERA. AT9

slightly rounded before the middle, the hind angles sharply rectangular, the anterior angles sharp but not
very prominent, the surface densely, rather coarsely punctate, the punctures here and there longitudinally
confluent, especially towards the sides, the disc faintly transversely depressed in the middle before the
base ; elytra the width of the prothorax at the base, and three times as long as it, subparallel, finely
margined at the base, with regular series of rather fine, closely placed punctures, the interstices flat, finely
punctured—the punctures forming two rows on each interstice towards the suture and single rows
laterally.
Length 6 millim.

Hab. Mexico, near the city (Lohr).

We are indebted to Mr. Flohr for an example of this species. It is closely allied to
the North-American 7’. pulverea, Horn, and has the head formed as in that insect,
but differs in its more elongate shape; the eyes are more prominent (the orbits
impinging very slightly upon them in front); the elytra are much more elongate, with
the punctures of the series finer and closer, and the interstices flat.

TRIENTOMA (p. 2).

Allard’s paper on this genus [ Ann. Soc. Ent. Belg. xxvii. p. 14 (1883)| was overloooked
by me. No additional evidence is forthcoming as regards the two species described as
from Mexico (anted, p. 2), and it is exceedingly probable that both of them are from
the island of San Domingo. T. mexicana is not really distinct from 7. sal/@i, Kr., from
San Domingo; TZ. rugifrons is an ally of T. ryticephala, All., from the same island,
but differs in its less opaque surface, more coarsely punctured thorax, and the minutely
punctured, slightly convex, elytral interstices.

MESABATES (p. 3).

Two more species are now added to this genus. These agree with M. latifrons
(additional specimens of which have been received from Huitzo in Oaxaca) in having a
short, broad head, which is more or less dilated anteriorly and feebly trilobed in front ;
the eyes are not at all prominent, and partly divided by the sides of the front; the
epistoma is declivous and produced in the middle in front, very short as seen from
above, and limited posteriorly by a transverse depression; the body is apterous.
M. spissicornis differs from the two other species in being without a supraorbital ridge.

2. Mesabates spissicornis.

Moderately elongate, rather depressed, subparallel, opaque, pitchy-brown. Head short, broad, dilated anteriorly,
thickly, rather coarsely punctate ; the epistoma short, declivous and produced in the middle in front, trun-
cate at the apex, limited posteriorly by a shallow transverse depression; the eyes very small, almost
divided by the sides of the front, which are rounded anteriorly and thickened, without supraorbital ridge ;
antenne long and stout, thickening outwardly, joints 9 and 10 very strongly transverse; prothorax
transverse, the sides moderately rounded, very feebly sinuate before the base, widest at the middle, very
little wider at the base than at the apex, the anterior and hind angles prominent but rather obtuse, the
base subtruncate, the entire surface uniformly, densely, rather coarsely punctate; elytra the width of

3QQ 2

480 SUPPLEMENT.

the prothorax, and nearly three times as long as it, subparallel in their basal half, with rows of fine,
subapproximate punctures, which become still finer towards the apex, the interstices flat, each with an
irregular row of punctures which are very little finer than those of the striw; beneath very coarsely,
closely punctate, the ventral surface more sparsely and finely so; tarsi clothed with spiny hairs beneath,
the first joint of the hind pair as long as 3 and 4 together.

Length 5 millim.

Hab. Mexico, La Noria in Sinaloa (Hége).

This small species has much the facies of a Blapstinus. One specimen.

3. Mesabates inezequalis.

Obovate, convex, opaque, black or brownish-black. Head short, broad, a little dilated anteriorly, rather
sparsely, finely punctate; the epistoma very broad, short, declivous and produced in front, broadly
truncate at the apex, limited posteriorly by a transverse depression which extends laterally to the sharp
supraorbital ridge; the eyes not prominent, divided to about the middle by the sides of the front, which
are rounded anteriorly and somewhat swollen; antenne slender, joints 9 and 10 as long as broad ;
prothorax convex, transverse, widest a little behind the middle, the sides almost parallel behind, gradually,
obliquely converging in front, the anterior angles somewhat produced and with a few fine vibrisse, the
hind angles nearly rectangular, the base subtruncate, the surface coarsely, confluently punctured at the
sides, sparsely and finely so on the disc; elytra slightly wider than the prothorax, oval, with rows of very
fine, shallow, not very closely placed punctures, which become obsolete towards the apex, the interstices
flat, minutely, sparsely punctate from the base to the middle, almost smooth beyond; beneath very
coarsely punctured, the ventral surface finely and sparsely so; tarsi clothed with spiny hairs beneath, the
first joint of the hind pair as long as 3 and 4 together.

Length 5-63 millim.

Hab. Mexico, Chihuahua city, Refugio and Villa Lerdo in Durango, Aguas Calientes

city (Hoge).

Numerous examples. In its obovate shape &c. this species resembles Trimytis
obovata, but it has a very differently formed head. The punctuation of the elytra is
sometimes very faint; the thorax has the middle of the disc finely and sparsely, and
the sides coarsely and confluently, punctate, the transition from one to the other being
very abrupt. The antenne are much more slender than in MW. latifrons and M. spissi-
cornis; the intercoxal process of the abdomen is broader than in I. latifrons.

EMMENASTUS (p. 8).
The North-American species of Hmmenastus and Hurymetopon have been recently
monographed at great length by Capt. Casey (Ann. N. York Acad. v. pp. 330-365).
Of Emmenastus we have received a large amount of additional material, but of
Hurymetopon nothing fresh has come to hand.

Emmenastus belti (p. 11).
Emmenastus rotundicolls, huj. op. p. 11.
Emmenastus intermedius, huj. op. p. 12.

To the localities given, add :—Mexico, Temax in North Yucatan (Gaumer).

HETEROMERA. 481

The numerous specimens received from Mr, Gaumer connect Z. rotundicollis and
L. intermedius with ZL. belti. The thorax is more rounded at the sides in some

examples (as in #. rotundicollis and £. belti), and the punctuation is variable, it

being finer and sparser on the disc (Z. belti and F. intermedius) or almost uniform
(£. rotundicollis).

Emmenastus parallelus (p. 12).

To the locality Mexico, add:—Matamoros Izucar (Flohr, Hoge), Cuautla (Flohr),
Atlixco, Cuernavaca (Hége).

Numerous additional examples have been received of this species.

10 (a). Emmenastus mexicanus.

Elongate-ovate, narrow, subparallel, black, opaque. Head thickly, rather coarsely punctate, the eyes not
‘prominent; antenne slender, moderately long; prothorax convex, strongly transverse, subparallel
behind, narrowing anteriorly, the anterior angles sharp, the hind angles subrectangular, the base feebly
bisinuate and with a very shallow but distinct fovea on either side laterally, the surface rather coarsely,
confluently punctured towards the sides, sparsely and finely so on the middle of the disc, the disc with
a smooth central line and a transverse depression before the base, a narrow space between the basal foveve
shining, more sparsely punctate; elytra the width of, and about four times as long as, the prothorax,
subparallel to beyond the middle, with rows of fine, approximate, rather deep punctures, the interstices
flat, each with an irregular row of minute punctures; beneath very sparsely punctate; tarsi clothed with
coarse yellowish hairs beneath: body winged.
Length 7-77 millim.

Hab. Mexico, near the city (Hége).

Two examples. Allied to EZ. parallelus, but with the thorax more coarsely, more
sparsely punctate, and very shallowly but distinctly foveate at the base towards the
sides, the space between the fovee shining and almost smooth; the elytra with the —
serial punctures coarser and more deeply impressed.

Emmenastus tenebrosus (p. 12).
To the Mexican locality given, add :—Aguas Calientes city, Mexico city (Hoge).

The wings in this species are abbreviated.

12 (a). Emmenastus subapterus.

Elongate-ovate, rather broad, slightly shining, black or pitchy-brown. Head finely, somewhat thickly punctate,
the eyes not prominent; antennz slender, moderately long; prothorax strongly transverse, moderately
rounded at the sides, narrowing from about the basal third, the anterior angles rather sharp, the hind
angles subrectangular, the base distinctly bisinuate and grooved within the margin on either side of the
middle, the surface finely, thickly punctate, the punctures towards the sides partly confluent; elytra
moderately long, with rows of very distinct, fine, approximate punctures, the interstices flat, very sparsely,
minutely punctate; beneath obscure ferruginous, somewhat thickly punctured ; tarsi clothed with coarse
hairs beneath ; wings very small, rudimentary.

Length 7-73 millim.

482 SUPPLEMENT.

Hab. Mexico, Ventanas in Durango (Hége), Canelas in Durango (Flohr).

Three examples. This species is nearest allied to #. tenebrosus, but has still more
rudimentary wings; it is also broader and has the elytral interstices very sparsely,
minutely punctate, the serial punctures much more distinct. In the single specimen
from Canelas the thorax has an oblique basal fovea on one side and not on the other.
From F. picipes &c. the present species may be easily known by the distinctly bisinuate
base of the thorax.

Emmenastus alatus (p. 13).

Emmenastus salvini, huj. op. p. 18.

16 (a). Emmenastus seriatus.

Oblong-ovate, brownish-black, opaque, the elytra slightly shining. Head rather sparsely, finely punctate, more
coarsely so between the eyes, the latter not prominent; antennz slender; prothorax convex, transverse,
moderately rounded at the sides and gradually narrowing almost from the base, the base strongly bisinuate
and grooved within the margin on either side of the middle, the anterior angles rather sharp, the hind
angles subrectangular, the surface finely, moderately closely punctured, the punctures finer and more
scattered on the disc; elytra the width of the prothorax at the base, subparallel in their basal half,
moderately long, with series of rather coarse, deep, approximate punctures, the interstices flat, with
serially arranged fine punctures, which become coarser towards the suture; beneath sparsely punctate ;
tarsi with spiny hairs beneath: body winged.

Length 6-63 millim.

Hab. Mexico, Tehuantepec (Hoge).

Three examples. Allied to #. guatemalensis, but larger and less parallel, with the
interstitial punctuation of the elytra coarser and closer towards the suture. It differs
from £. alatus in having the basal margin of the thorax grooved within on either side
of the middle, without trace of foveer.

Emmenastus confusus (p. 15).
‘To the localities given, add :—Mexico, Tapachula in Chiapas (Hoge).
Found in plenty by Herr Hoge.

19 (a). Emmenastus constrictus.

Elongate, narrow, opaque, pitchy-red. Head densely, rather coarsely punctate, the epistoma subangularly
produced in the middle and separated from the lateral portions by a distinct emargination ; the eyes
prominent; the mandibles toothed on the upperside at some distance before the apex; antenne slender,
moderately long; prothorax convex, transverse, narrowed behind, only a little wider at the base than at
the apex, widest at the middle, the sides strongly rounded, the anterior angles acute, the hind angles
subrectangular, the base bisinuate and rather broadly and deeply grooved within, the groove terminating
laterally in a very shallow oblique depression, the surface closely and rather coarsely punctate, the
punctures a little finer and more scattered on the disc; elytra elongate-oval, slightly narrowed at the
base, with rows of very shallow, fine, approximate, muricate punctures, which become almost obsolete on
the disc towards the apex, the interstices flat, finely alutaceous, very shallowly, sparsely, minutely

HETEROMERA. 483

punctate ; beneath obscure ferruginous, opaque; tarsi clothed with spiny hairs beneath, the first joint of
the hind pair as long as the third and fourth united: body winged.
Length 44-5 millim.

Hab. Mexico, Iguala in Guerrero, Cuernavaca in Morelos (Hoge).

Three examples. This species has quite a different facies from any of the other
Central-American members of the genus. The head is feebly trilobed in front, both
mandibles are toothed on the upperside, the thorax is considerably narrowed behind
and deeply grooved within the basal margin, and the elytral interstices are finely
alutaceous. ‘The external (or ninth) row of punctures on the elytra is deeply impressed
towards the base, and within the reflexed margin there is a row of coarse impressions.

Emmenastus mancus (p. 15).
To the Mexican localities given, add :—Chilpancingo and Acapulco (Hége).

Emmenastus curtus (p. 16).

To the Mexican locality given, add:—Ventanas in Durango (Hége).

Emmenastus lentus (p. 16).

To the Mexican locality given, add:—Chihuahua city (Flohr, Hége), Villa Lerdo in
Durango (Hége).

Found in plenty at Villa Lerdo. These additional specimens differ from the slightly
immature type in the more distinct punctuation of the elytral interstices. EH. lentus is
very closely allied to E. convexus, Lec. (for a specimen of which I am indebted to
Capt. Casey), but differs from it in having the punctures of the elytral series much
more distinct, the thorax more rounded at the sides, and the ventral surface more
closely punctate. In some of the Durango specimens the thorax is more densely and
more confluently punctured.

Emmenastus pulvinatus (p. 17).
To the Mexican locality given, add :—Mexico city (lohr, Hoge), Pachuca in Hidalgo,
Tehuantepec (Hége).

27. Emmenastus stolidus.

Elliptic, rather broad, short, feebly convex, opaque, black or pitchy-brown. Head finely, rather thickly
punctate; antenne moderately elongate, the basal joints slender; prothorax strongly transverse, the sides
rapidly converging almost from the base, the anterior and posterior angles obtuse, the base almost straight
and shallowly grooved within the, margin on either side of the middle, the surface finely and rather
closely punctured, the punctures finer and sparser on the middle of the disc; elytra the width of the
prothorax at the base, rather short, narrowing from about the middle, with rows of very fine, shallow,
closely placed punctures, the interstices flat, exceedingly minutely, sparsely punctate; beneath pitchy-

484 SUPPLEMENT.

brown or ferruginous, sparsely punctured; tarsi clothed with rather long coarse hairs beneath: body
apterous.
Length 6 millim. °

Hab. Mexico, Tehuantepec (Hége).

‘Three specimens. Of regularly elliptic form, comparatively short and broad, and
somewhat depressed; the serial punctures of the elytra very faint. The thorax is
trapezoidal in shape, and finely grooved within the basal margin, but not foveate.
E. stolidus is not very closely allied to any other Emmenastus described here, but it
approaches the following; both apparently belong to Casey’s Section III., which
includes one species only, EZ. punctatus, Lec., from Lower California.

28. Emmenastus igualensis.

Elongate-ovate, broad, rather depressed, opaque, rufo-piceous or obscure castaneous. Head finely, somewhat
closely punctate, the eyes rather prominent ; antenne slender, moderately elongate; prothorax strongly
transverse, moderately rounded at the sides, narrowing from about the basal third, the base very feebly
bisinuate and grooved within the margin on either side of the middle, the hind angles rather obtuse, the
anterior angles subacute, the surface finely, closely punctate towards the sides, sparsely, minutely so on
the middle of the disc; elytra the width of the prothorax at the base, elongate, with rows of very fine,
shallow, approximate punctures, which become fainter towards the suture, the interstices flat, exceedingly
minutely, sparsely punctate ; beneath obscure ferruginous, sparsely punctured ; tarsi thickly clothed with
long yellowish hairs beneath: body apterous.

Length 8 millim.

Hab. Mexico, Iguala in Guerrero (Hége).

Four specimens. In the very faint punctuation of the upper surface this species
approaches J. stolidus, from which it differs in its much more elongate shape and
larger size, and in having the thorax less narrowed in front. The thorax is grooved
within the basal margin, but not foveate.

SCHGENICUS (p. 18).

Scheenicus viridis (p. 19).
To the localities given, add :—Mextco, Villa Lerdo in Durango (Flohr), Venta de
Zopilote, Savana Grande, and Rincon, all in Guerrero (H. H. Smith).

Varies greatly in colour. One specimen from Savana Grande is ultramarine-blue.

Scheenicus rufipes (p. 19).
To the localities given, add :—Mexico, Temax in North Yucatan (Gaumer).
Received in abundance from Yucatan. Many specimens are rufo-piceous in colour.

All the examples but one have the legs more or less rufous. S. impressus, from Costa
Rica, is probably a dark-legged variety of the same species.

HETEROMERA. 485

Schenicus difficilis (p. 20). |
To the Mexican localities given, add :—Chilpancingo (Hége, H. H. Smith), Tacam-
baro (Flohr, Hége), Ventanas, Zapotlan, Morelia, Huitzilac, Acapulco (Hége).

Numerous additional examples have been received, showing that this insect is quite
distinct from S. chalybeus,

Schenicus pectoralis (p. 21).

To the Mexican localities given, add :—Tonila and Zapotlan in Colima, Chilpancingo,
Cuernavaca, Guadalajara, Sayula (Hége).

Schenicus vestitus (p. 22)

To the Mexican localities given, add .—Acapulco, Sayula (Hoge), Rincon and Tierra
Colorada in Guerrero (H. H. Smith).

EPITRAGUS (p. 23).

Epitragus sallei (p. 24).
To the localities given, add :—Mexico, Temax in North Yucatan (Gaumer), Tapa-
chula in Chiapas (Hoge); Honpuras (Casey).

Apparently a common insect in Chiapas and Yucatan.

Epitragus ornatus (p. 26).
To the Mexican localities given, add :—Villa Lerdo in Durango (Flohr).
The male of this species is very like the same sex of F. littoralis, but has more acute
hind angles to the thorax.

Epitragus angusticollis (p. 26).
To the Mexican locality given, add :—Chilpancingo in Guerrero (Hoge).

Two additional examples of this species have been received, both females, like the

type.

Epitragus littoralis (p. 27).
To the Mexican locality given, add :—Iguala, Cuernavaca (Hodge).
Two males received from Herr Hoge seem to belong to this species, the original
specimens of which came from the Pacific coast.

9 (4). Epitragus cristatus, (Tab. XXII. fig. 4, ¢ .)
Oblong-ovate, broad, obtuse behind, zneous, sometimes with a greenish or cupreous tint, clothed with very short
yellowish-cinereous pubescence. Head thickly, finely punctate, with a tuft of long, coarse, ercct, fulvous
hairs between the eyes in both sexes, the median lobe convex and broadly produced in front, the lateral

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 3 RR

486 SUPPLEMENT.

lobes not prominent, the supraorbital carina indistinct ; prothorax—( 2 ) broader than long, glabrous,
exceedingly minutely, very sparsely punctate, with a smooth central line, the sides obliquely converging
from the base, feebly rounded anteriorly, the lateral margins thickened and strongly reflexed, the disc with
a stout, longitudinal ridge on either side extending to the anterior margin, the two forming a U-shaped
elevation and enclosing a deep depression, the anterior angles acutely produced in front, the hind angles
acute, the apical margin trisinuate—( ¢) regularly convex, pubescent, thickly, finely punctate, with a
smooth central line, the lateral margins not thickened ; elytra very much broader than the prothorax,
densely, minutely punctate, with traces of very shallow longitudinal grooves : beneath densely, finely
punctate, the metasternum smoother ; mesosternum V-shaped, deeply excavate for the reception of the
prosternum ; anterior tibie feebly dilated at the apex.
Length 114-123 millim. (d¢ 2.)

Hab. Mexico, Colima city, Chilpancingo (Hoge).

Found in abundance by Herr Hége during his second expedition. . cristatus may
be readily known from the allied forms by the long tuft of fulvous hairs between the
eyes in both sexes. It comes nearest £. liétoralis, but the female has the thorax
smoother, less widened behind, and with the lateral margins thickened and strongly
reflexed; the males of the two species are exceedingly similar. .

Epitragus acutus (p. 27).
The Mexican localities quoted should be transferred to E. canaliculatus ; we have
received specimens of both sexes of E. acutus from Monterey, Nuevo Leon (Hége).
I am indebted to Dr. Horn for forwarding female examples of HZ. acutus and
E. canaliculatus for comparison. LF. acutus ( 2 ) has the thoracic margins more broadly
thickened at the middle.

Epitragus rorulentus (p. 27).
Epitragus scutatus, huj. op. p. 28.
To the Mexican localities given, add:—Aguas Calientes city, Guadalajara, Tonila
and Zapotlan in Colima (Hége).

E. scutatus is an aberrant example of this species, with the anterior angles of the
thorax unusually prominent and thickened, and the head with a well-marked supra-
orbital carina; both characters are inconstant.

Epitragus canaliculatus (p. 28).
To the Mexican localities given, add :—Paso del Norte, Santa Clara, Chihuahua city,
Villa Lerdo in Durango, Durango city, Aguas Calientes city (Hodge).

Found in plenty by Herr Hoge in Northern Mexico.

Epitragus grandis (p. 31).
To the Mexican localities given, add :—Chilpancingo, Iguala, Tapachula (Hége),
Puente de Ixtla (H. H. Smith).

HETEROMERA. ABZ.

Epitragus acutangulus (p. 31).
To the locality given, add :—Mextco, Tapachula in Chiapas (Hége).

Epitragus aurichalceus (p. 33).
To the Mexican localities given, add:—Chilpancingo in Guerrero (Hége, H. H.
Smith).

Found in plenty by Herr Hoge.

26 (a). Kpitragus gracilis.
Epitragus gracilis, Casey, Ann. N. York Acad. v. p. 366 (Nov. 1890) '.
Hab. Mexico, State of Guerrero (Baron 1).

We are indebted to Capt. Casey fora male example of this species. It does not
appear to have been met with by any of our collectors in Mexico. The male of
. gracilis is deceptively like the same sex of E. metallicus.

Epitragus canus (p. 34). (Tab. XXII. fig. 5, 2.)

To the locality Mexico, add :—Rincon in Guerrero (H. H. Smith).

We have now received examples of both sexes of this species, which was described
from a single male specimen. . canus proves to be a close ally of £. lttoralis, but
differs from it in both sexes by having the vertex clothed with coarse decumbent
whitish hairs, in addition to the usual pubescence. The female has two ridges on the
thorax, but these ridges are oblique, not so strongly raised, and (like the median exca-
vation) do not extend so far backwards; the thorax is also much more distinctly
punctured in this sex. The hairs on the vertex are as it were longitudinally combed
forwards, and do not form a dense, erect tuft as in E. cristatus.

Epitragus cupreus (p. 34).
To the localities given, add :—Mexico, Tapachula in Chiapas (/ége).

Sent in abundance by Herr Hoége from Tapachula, a locality not far from the
Guatemalan frontier. ,

Epitragus lucidus (p. 35).
To the Mexican localities given, add :—Cholula in Puebla (Hége).

Numerous examples.

Epitragus obovatus (p. 35).
To the Mexican locality given, add:—La Venta in Guerrero (H. H. Smith).

3 RR 2

488 SUPPLEMENT,

36. Epitragus ruatanensis.

Subfusiform, convex, rather broad, castaneous with a slight brassy lustre, shining, very sparsely clothed with
short appressed hairs. Head closely, finely punctate anteriorly and on the vertex, more coarsely and
sparsely so between the eyes, the lateral lobes divergent and produced in front nearly as far as the
epistoma, the supraorbital carina distinct ; prothorax strongly transverse, the sides rounded and con-
vergent anteriorly, sinuate behind, the hind angles very acute and directed outwards, the anterior angles
rather obtuse, the base with a well-marked rather deep oblique fovea on either side, the surface finely and
rather thickly punctured laterally and in front, sparsely so on the disc, the latter with a smooth central
line; elytra moderately iong, a little rounded at the sides, narrowing from the middle, with the apices
somewhat produced and acute, with rows of fine, shallow, approximate punctures, the interstices flat,
each with two irregular rows of very fine punctures, which towards the sides are scarcely distinguishable
from those of the strize; beneath thickly punctured, the metasternum coarser punctate laterally, smoother
in the middle; the mesosternum V-shaped, and deeply excavate for the reception of the prosternum.

Length 114 millim.
Hab. Honpuras, Ruatan Island (Gaumer).

One specimen. Larger and broader than £. godmani and ££. communis; the thorax
more rounded at the sides anteriorly, with well-marked basal fovee, the hind angles
more acute and directed outwards, the anterior angles obtuse, and the punctuation
much finer.

ZOPHERUS (p. 38).

M. Sallé’s synonymical note (Col. Hefte, vi. p. 113) on the species of this genus was
overlooked by me.

Zopherus chilensis (p. 38).

Zopherus insignis, Blanch. in d’Orbigny’s Dict. d’Hist. Nat. xiii. p. 377, Atlas, Ins. Col. t. 7 a.
fig. 6.

Zopherus moreletii, Lucas, Ann. Soc. Ent. Fr. 1852, Bull. p. xxiii.

To the Mexican localities given, add :—Tehuantepec ( Hége).

2. Zopherus jourdani.
Zopherus mexicanus (Sol.), huj. op. p. 89 (nec Gray).
Zopherus jourdani, Sallé, Ann. Soc. Ent. Fr. 1849, p. 301, t. 8. fig. 4; Col. Hefte, vi. p- 1138.

I have recently examined the type of Z. mexicanus, Gray, now in the Hope collection
at Oxford, and find that it is specifically distinct from Z. mexicanus, Sol.; the name
jourdani, Sallé, must therefore be retained for this species.

Zopherus levicollis (p. 40).
To the Mexican localities given, add :—Zacualtipan, Las Vigas, Jalapa (Hoge).

5 (a). Zopherus venosus.
Zopherus levicollis, var. venosus, huj. op. p. 40.

Numerous additional specimens have been received of this insect—from San Andres

HETEROMERA. 489

Chalchicomula, Amecameca, and Acapulco (Hége), and Mochitlan in Guerrero (Baron),
and I am now convinced that Z. venosus should be separated from Z. levicollis.

Zopherus tuberculatus (p. 41).
We have received an additional specimen of this species, from Santo Domingo,
Tehuantepec (Richardson).

7. Zopherus mexicanus.
Zopherus mexicanus, Gray, in Griffith’s Animal Kingdom, Append. p. 796, t. 50. fig. 5 (nec
Solier). |
Zopherus maculatus, huj. op. p. 41.
To the locality Mexico, add :—Zacualtipan in Hidalgo, Mexico city (Hége), State
of Jalisco (Richardson).

The Zacualtipan specimen (like those described by me under the name maculatus)
agrees well with the type of Z mexicanus, Gray; the one from Jalisco has the tubercles
on the elytra much more numerous. The apical tubercles are small, and the suture
is a little swollen at the apex, so that, at first sight, the elytra appear to be quadri-
tuberculate at the tip. The ventral tubercle is not trilobed in front, as in the closely

allied 7. venosus.

7 (a). Zopherus elegans. (Tab. XXII. fig. 7.)

Zopherus elegans, Horn, Rev. Ten. of Am. north of Mexico, pp. 271, 272 (1870) *.

Hab. Norta America, Eastern New Mexico !.—Maxico, Villa Lerdo and Refugio in

Durango (Hége).

“ Similar in form to Z. tristis or Z. concolor, but rather more slender; black, subopaque; thorax longer than
broad, broader in front, sides moderately rounded and gradually narrowing to base, surface moderately
convex, with sparsely placed distinctly muricate punctures, each bearing a scale-like hair, margins with a
narrow white space, in which are included moderately elevated, smooth round black tubercles; elytra
elongate-oval, narrower than the thorax, moderately convex, and with nine rows of tubercles, more con-
fused and less distinct at the suture, and becoming more rounded, distinct, and distant towards the
sides, where there is a narrow band of white containing three of the rows of tubercles ; body beneath
black and opaque, very sparsely punctured, each puncture with a scale. Length *60 inch.”

Numerous examples from Durango agree well with this description, which was
taken from a single specimen captured by Dr. Palmer. ‘The elytral sculpture is, as
usual, variable, and the tubercles are sometimes entirely obliterated towards the suture ;
the thorax also varies in this respect, and the tubercles along the lateral margins are

often obsolete.

Zopherus nodulosus (p. 42). (Tab. XXII. fig. 6, var.)
A beautiful variety of this species obtained by Mr. Richardson at Santo Domingo,
Tehuantepec, has only about six moderately large, irregular tubercles on each elytron

490 SUPPLEMENT.

and the spots on the thorax much reduced in size, the greater part of the surface being
yellowish-white. In another variety (?) (fig. 6), of which a single specimen only has
been received, from Jalapa (J/. Trujillo), the smaller tubercles on the elytra and on
the lateral portion of the thorax are almost entirely obliterated, and those of the
sutural row are reduced in number. Four examples from Tampico (Richardson)
have, on the contrary, the elytral tubercles, including those of the sutural row, very
large and closely placed.

Zopherus haldemani, var. verrucosus (p. 43).
To the Mexican locality given, add :—Amula in Guerrero (H. H. Smith), Acapulco,
Chilpancingo (Hége), Mochitlan in Guerrero (Baron), San Blas (Richardson).

Zopherus nervosus, var. reticulatus (p. 43).
Additional specimens of the variety reticulatus have been received from Omilteme in
Guerrero (H. H. Smith), and Mochitlan in Guerrero (Baron); in some of these, the
large spots on the disc of the elytra are reduced in number and partly confluent.

NOSODERMA (p. 44).

11. Nosoderma inezequale.

Eurychora inequalis, Say, Bost. Journ. Nat. Hist. i. p. 182 (1835)*; Complete Writings, ii.
p- 655. .

Nosoderma morbillosum, Sol. huj. op. p. 48.

Say’s name must be retained for this species, it being six years earlier than that of
Solier. £. inequalis is omitted from the Munich Catalogue. Say gives! Mexico as
the locality, and states that the insect occurred in abundance in an elevated situation,
under old logs. We have received a large number of specimens from various additional
localities in Mexico—Volcan de Ixtaccihuatl (Richardson), Volcan de Popocatepetl
(f. D. Godman), Omilteme (H. H. Smith), Mochitlan (Baron), &c.

Nosoderma carinatum (p. 48).
To the Mexican localities given, add :—Refugio in Durango (Hége).

Nosoderma anceps (p. 50).
To the Mexican localities given, add :—Pine-forest of Popocatepetl (F. D. Godman),
Amecameca (Hége).

ARAOSCHIZUS (p. 51).

1. Arzoschizus decipiens.
Areoschizus decipiens, Horn, Trans, Am. Ent. Soe. xvii. p. 8342 (Nov. 1890) *.
Areoschizus costipennis, hu}. op. p. 51 (nec Lec.).

HETEROMERA. 491

Hab. Nortn America, Arizona 1.—Mexico, Northern Sonora (Morrison), Villa Lerdo
in Durango ( Hége).

2. Arzoschizus simplex. 3
Areoschizus simplex, Casey, Ann. N. York Acad. v. p. 369 (Nov. 1890)’; Horn, Trans. Am. Ent.
Soc. xvii. p. 341°.

Hab. North America, Arizona!, El Paso1, Texas ?.—Merxico, Paso del Norte
(Hoge).

3. Arzoschizus mexicanus. (Tab. XXII. fig. 3.)

Obscure castaneous, subopaque. Head considerably longer than broad, dilated in front, parallel at the sides
for a short distance behind the eyes, and then gradually, arcuately narrowed to the base, obliquely
grooved on either side behind the eyes (the intraocular space appearing longitudinally convex), the intra-
ocular carina short and not extending beyond the eyes, the surface densely, coarsely punctate, and
sparsely. clothed with coarse scale-like hairs; antenne very stout, clothed with very coarse scaly hairs ;
prothorax very much narrower than the head, similarly punctured, slightly longer than broad, the sides
a little rounded anteriorly and obliquely converging behind, very feebly sinuate towards the base, the disc
with a broad median groove limited on either side by a row of short, coarse, scaly, yellowish hairs, the
base, apex, and sides coarsely fimbriate ; elytra subparallel from a little below the base to beyond the
middle, broadly, obliquely rounded at the shoulders, obliquely narrowed behind, quadricostate, the inter-
stices each with a double row of very coarse impressions, the costs each with a row of short, coarse,
semi-erect, scaly, clavate hairs at their summit; flanks of the prothorax very coarsely, thickly punctate ;
legs sparsely clothed with coarse scales; femora unarmed.

Length 4 millim.

Hab. Muxico, Tepetlapa (/ohr).

One specimen. Closely allied to A. sulcicollis, Horn, and A. jimbriatus, Casey. It
differs from the former (numerous examples of which are before me) by the shorter
thorax, the sides of which are very feebly sinuate and coarsely fimbriate, the grooved,
more parallel head, and very stout antenne ; and from the latter by the longer head,
narrower thorax, shorter elytral hairs, &c.

ASIDA (p. 52).

Of this genus we have received a very large amount of additional material, chiefly
from Northern Mexico; and numerous additional species have to be added to the
Mexican list. Zisamenes, Ucalegon, Poliorcetes, and Zamolxis*, each containing a
single species, are connected with Asida by intermediate forms, and they can only be
treated as sections of that polymorphous genus. If they are retained as distinct,
A. elata, A. ingens, &c. would also have to be separated. Ologlyptus has the middle
coxal cavities partly closed externally and the trochantin small; it is also connected
with Asida by intermediate forms.

* Preoccupied in Hemiptera. If retained as distinct, the name Zaleucus can be substituted for it.

4992 SUPPLEMENT.

2. Asida sordida.
Pelecyphorus sordidus, Lec. Proc. Acad. Phil. vi. p. 445*; Col. of Kansas and Eastern New Mexico,
p- 14, t. 1. fig. 11”.
Asida sordida, Horn, Rev. Ten. of Am. north of Mexico, p. 283 *,
Pelecyphorus eger, Lec. Journ. Acad. Phil. iv. (2) p. 19°.
Pelecyphorus irregularis, Lec. loc. cit. p. 19°.
Pelecyphorus costipennis, Lec. loc. cit. p. 20°.
Asida rugosissima, huj. op. p. 53, Tab. IIT. fig. 1.
Asida interrupta, huj. op. p. 53.
To the localities given, add:—Nortn America, Arkansas River +’, Texas +5, New
Mexico 23, Arizona®.—Muxico, Chihuahua (Montague Kerr), Chihuahua city, Santa
Clara in Chihuahua (/6ge). |

The numerous additional specimens obtained by Herr Hoge in Northern Mexico
connect A. rugosissima and A. interrupta with the variable A. sordida, Lec., and they
cannot be retained as distinct. The Mexican examples are very robust and have the
transverse wrinkles on the elytra exceedingly coarse. The thorax varies in shape, the
base being sometimes strongly bisinuate and the hind angles prolonged backwards.
The only North-American specimens I have seen as yet are smoother than usual.

Asida clathrata (p. 54).
Var. Asida funesta, huj. op. p. 53.
To the Mexican localities given, add:—Chilpancingo in Guerrero (H. H. Smith),
Mochitlan (Baron), Matamoros Izucar, Atlixco, and Cholula, all in Puebla (Hége).

Sent in abundance by Herr Hoge from various places in the State of Puebla, also
from Cuernavaca. A. funesta is an extreme variety of the same species, from which it
differs in having the disc of the thorax unimpressed, and the inner dorsal ridge on each
elytron strongly raised.

Asida asidoides (p. 54).
To the locality Mexico, add :—Tula and Zimapan in Hidalgo (Hége).

Two specimens.

8(a). Asida geminata. (Tab. XXII. fig. 8, 2.)

Rather broad, black, or pitchy-ferruginous, opaque, the entire upper surface sparsely clothed with short,
brownish, fine, appressed scaly hairs. Head transversely depressed in front, rather coarsely punctured ;
prothorax broader than long, much narrower at the apex than at the base, the apex deeply emarginate,
the sides rounded anteriorly and strongly sinuate behind, the hind angles greatly produced and outwardly
directed, the anterior angles very prominent but rather obtuse, the lateral margins thickened and slightly

HETEROMERA. 493

reflexed, the base feebly sinuate on either side, the surface densely, very irregularly punctate, the punc-
tures much coarser and more or less confluent on the middle of the disc behind, the disc usually with an
irregular, smooth, raised median line towards the base, and two oblique smooth spaces on either side ;
elytra the width of, or very little wider than, the prothorax at the base in the male, broader and more
dilated in the female, rather abruptly declivous behind, with a strongly thickened marginal carina
extending from the obtuse (or moderately prominent) humeri nearly to the apex, and three irregular,
feebly raised, almost smooth costa on the disc—the inner two very broad, and each formed by two anas-
tomosing lines (which are sometimes only connected by transverse elevations), the interspaces (the sutural
one excepted) here and there transversely wrinkled, coarsely so in some specimens, the base more or less
obliquely sloping towards the humeri, the depressions of the surface clothed with scaly hairs; the entire
under surface very finely, sparsely punctate, each puncture with a scaly hair; prosternum declivous
behind, concave in the middle between the coxe ; anterior tibie with a short spur at the tip.
Length 13-18, breadth 7-10 millim. (¢ @.)

Hab. Mexico, Villa Lerdo in Durango, Santa Clara in Chihuahua, Chihuahua city
(Hoge).

Sent in abundance from Villa Lerdo. Allied to A. opaca, A. forreri, and A. manci-
pata, but differing from all of them in various particulars. The hind angles of the
thorax are unusually prominent, and the base of the elytra slopes more or less obliquely
towards the humeri; the humeri are obtuse in some examples, prominent and reflexed
in others. The elytral sculpture is difficult to describe: in some specimens the inner
costee are each formed by two irregular raised lines, which are partly connected by
transverse or oblique elevations ; in others (two from Chihuahua) the coste are almost
obliterated, and replaced by irregular transverse wrinkles.

8(s). Asida mancipata.
Asida mancipata, Horn, Trans. Am. Ent. Soc. vii. p. 56°.

Hab. Norra America, New Mexico !.—Mextco, Chihuahua city (Hége).

Two specimens.

8(c). Asida intricata. (Tab. XXII. fig. 9.)

Broad, rather short, depressed, opaque, black ; the elytra somewhat thickly, the prothorax sparingly, clothed
with short, appressed, scaly, yellowish-brown hairs, the head with longer hairs. Prothorax broader than
long, very deeply emarginate at the apex, a little rounded at the sides anteriorly, gradually narrowing in
front, slightly narrowed behind, the lateral margins strongly thickened and slightly raised, but not
grooved within, the anterior and hind angles obtuse but very strongly produced, the latter overlapping
the base of the elytra, the base strongly sinuate on either side and feebly so in the middle, the surface
very shallowly, rather finely punctate, the punctures each with a scaly hair and separated by fine, raised
lines, which towards the sides become coarser and more transverse, the disc with an interrupted smooth
median line and two smooth spots on either side; elytra much wider than the prothorax, a little rounded
at the sides, widest at the middle, produced at the apex, flattened on the disc, and with a thickened and
reflexed marginal carina extending from the very prominent humeri nearly to the apex, the disc with a
network of fine, raised, irregular, smooth, anastomosing lines apparently radiating from two longitudinal
series, the interspaces filled with appressed short scaly hairs, the base sinuate on either side, and excavate
within for the reception of the hind angles of the prothorax; beneath slightly shining, very sparsely,
finely punctate, each puncture with a scaly hair; prosternum very broadly, subhorizontally produced,

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 35S

494 SUPPLEMENT.

the mesosternum slightly excavate for its reception; anterior tibie with a short, sharp tooth at
the apex.
Length 17, breadth 9 millim. (¢.)

Hab. Mexico, State of Jalisco (Richardson).

One female example. Allied to A. forreri, A. opaca, &c. The thorax is narrowed
behind, and has the lateral margins considerably thickened; the anterior and hind
angles are greatly produced though obtuse, the base of the elytra being excavate for
the reception of the latter.

Asida foveolata (p. 55).
To the Mexican localities given, add :—Tehuantepec (Hége).

Sent in plenty from the Isthmus of Tehuantepec.

Asida suturalis (p. 55).
To the Mexican localities given, add :—Mexico city (Hége).

Found in numbers by Herr Hége in the neighbourhood of the city of Mexico. In

three of these specimens the sides of the thorax and the sides and suture of the elytra
are ferruginous.

13(a). Asida spinimanus. (Tab. XXII. fig. 11.)

Oblong-oval, moderately broad, depressed, obscure reddish-brown or piceous, opaque, somewhat thickly clothed
with short, fine, appressed yellowish hairs, the elytra with intermixed very short semi-erect hairs. Head
finely, somewhat thickly punctate; prothorax strongly transverse, much wider at the base than at the apex,
the sides rounded at the middle and obliquely converging in front and behind, the apex deeply emarginate,
the anterior angles acute and prominent, the hind angles subrectangular, the base broadly truncate in the
middle, slightly sinuate on either side, the disc feebly transversely convex, closely, finely punctate, and
sometimes with a smooth central line, the lateral margins rather broadly expanded, thin, a little raised,
and more coarsely punctured ; elytra broadly oval, depressed, a little rounded at the sides in front, wider
than the prothorax, truncate at the base, without marginal carina, the humeri obtuse and feebly reflexed,
the disc sometimes with traces of one or two longitudinal ridges towards the sides, the entire surface very
finely, sparsely punctate, the suture sometimes with a distinct row of coarser punctures on either side ;
beneath sparsely punctured, the punctures on the ventral segments very fine, each bearing a decumbent
yellowish hair ; prosternum declivous behind; anterior tibiz with a very long curved spine at the apex,
coarsely denticulate on their outer edge.

Length 10-14, breadth 5-7 millim.

Hab. Mexico, Villa Lerdo in Durango (Hége).

Sent in abundance by Herr Hoge. ‘This insect is perhaps nearest allied to Ologlyptus
bicarinatus, which would be better placed in Asida (near A. induta); the trochantin
of the middle cox is moderately prominent in both species. The anterior tibiz, as in
A. horrida, have a very long curved spine at the apex. The thorax is strongly trans-
verse, broad behind; the elytra are depressed, truncate at the base, and without
marginal or other carine. The pubescence is easily abraded.

HETEROMERA. 495

13 (s). Asida tenebrosa, (Tab. XXII. fig. 12.)

Oblong-oval, rather broad, depressed, dull black, almost glabrous. Head sparsely, finely punctate between
the eyes, more coarsely so in front; prothorax much broader than long, wider at the base than at the
apex, the sides rounded at the middle, obliquely converging in front, and converging behind, the disc
feebly transversely convex, sparsely, finely punctate, the base, apex, and lateral portion coarsely punctate,
the margins horizontally expanded, thin, the apex deeply emarginate, the anterior angles sharply produced
in front, the base broadly subtruncate, feebly emarginate in the middle, the hind angles subrectangular ;
elytra a little rounded at the sides, widest at the middle, the width of the prothorax at the base, with a
marginal carina extending from the obtuse humeri to about one-third from the apex, and three indistinct
longitudinal ridges on the disc, the rest of the surface with very shallow, scattered, coarse punctures and
shallow, irregular, transverse or oblique wrinkles, each puncture with a yellowish scale, the base broadly
truncate, the sutural region flat ; beneath very sparsely punctate, the ventral surface finely scabrous,
distinctly punctured at the sides and apex; prosternum grooved between the coxs, declivous behind ;
anterior tibie denticulate on their outer edge, and with a long spine at the apex.

Length 154, breadth 73 millim.

Hab. Mexico, Saltillo in Coahuila (Hége).

One specimen. Allied to A. spinimanus. ‘The surface is glabrous, except that each
puncture bears a yellowish scale.

14(a). Asida fasciculata. (Tab. XXII. fig. 21.)

Black, opaque, thickly clothed with pale brown, appressed scaly hairs, the elytra with scattered fascicles of
short, coarse, dark brown erect hairs. Head coarsely, confluently punctate ; prothorax feebly transversely
convex, broader than long, not wider at the base than at the apex, the sides rounded at the middle,
obliquely converging in front, and strongly sinuate behind, the anterior angles prominent, the apex deeply
emarginate, the hind angles produced behind and overlapping the elytra, the base truncate in the middle
and slightly sinuate on either side, the lateral margins thickened and a little raised, the surface coarsely,
confluently punctate, the disc with a sharp median carina; elytra much wider than the prothorax at the
base, widening to beyond the middle, abruptly narrowed behind, with a stout, undulating, marginal
carina extending from the obtuse humeri nearly to the apex and a shorter very sinuous carina near the
middle of the disc, the latter curving inwards towards the suture behind, and with an oblique ramus on
the inner side at the base, the space between the suture and the dorsal carina flattened, the lateral
portion uneven, the surface with coarse, scattered punctures and scattered fascicles of erect darker
hairs; beneath coarsely, sparsely punctate, each puncture with a bristly decumbent hair; prosternum
exceedingly broad, slightly produced, declivous behind ; legs very roughly punctured, the anterior tibie
with a short tooth at the apex. .

Length 12-153 millim.

Hab. Mexico, Cuernavaca (Flohr, Hoge).

Four examples. Closely allied to A. guanajuatensis, and, like that species, almost
as well placed in Ologlyptus as in Asida, the trochantin of the middle coxe being
moderately prominent. The thorax is more constricted at the sides behind than in
A. quanajuatensis and has a sharp median carina; the elytra are carinate at the sides
and have a sinuous, irregular, dorsal carina, the surface being clothed with scattered
fascicles of dark brown hairs, which towards the sides are placed upon transverse or

oblique elevations connected with the carine. <A. fasciculata closely resembles Astrotus

regularis.

38S 2

496 SUPPLEMENT.

Asida scutellaris (p. 57).
To the Mexican localities given, add :—Refugio, Salazar, Mexico city (Hége).

Sent in plenty from Salazar. In the four specimens from Refugio the lateral
margins of the thorax are raised and more thickened than usual. A. scutellaris
approaches very closely to A. fallax, but may be known from it by the much stouter
and more regular elytral costa, the coste not connected by transverse raised lines.

Asida fallax (p. 57).
Var. Asida favosa, huj. op. p. 58.
Var. Asida similata, huj. op. p. 58.
To the Mexican localities given, add:—Tula, Cholula (Hoge), Real del Monte (Hoge,
Richardson).

Sent in abundance by Herr Hége from Toluca and Mexico city. A. favosa and
A. similata are, as I suspected, varieties of A. fallax.

Asida laticollis (p. 58).
To the Mexican locality given, add :—Refugio in Durango, Durango city (Hoge).

Fight additional examples have been received of this species. A. laticollis differs
constantly from A. scutellaris and A. fallax in the much finer sculpture of the thorax.

Asida dispar (p. 59).
Asida dissimilis, huj. op. p. 59 (nec Allard).
To the locality Mexico, add :—Durango city (Hége).

Three specimens were obtained by Herr Hoge.

Var. The elytral coste separate throughout.
Hab. Mexico, Santa Clara in Chihuahua (//6ge).

One specimen. The name dissimilis having been used by Allard for another species
of the same genus, it is advisable to make the above change.

20 (a). Asida flohri. (‘Tab. XXII. fig. 10.)

Very elongate, rather narrow, flattened above, black, slightly shining, glabrous. Head deeply transversely
depressed in front, sparsely, coarsely, very irregularly punctate; prothorax broader than long, moderately
rounded at the sides anteriorly, narrowed and sinuate behind, deeply emarginate at the apex, the anterior
angles produced but obtuse, the hind angles very prominent and produced behind, the base broadly sub-
truncate in the middle and feebly sinuate towards the sides, the lateral margins much thickened, slightly
raised above, strongly deflexed beneath, the surface very coarsely, sparsely, deeply punctate towards the
sides, much more finely so on the middle of the disc ; elytra very elongate, subparallel, narrower than the
prothorax, a little narrowed towards the base, with a thickened, slightly raised marginal carina extending
from the rounded humeri nearly to the apex, the base truncate, obliquely wrinkled within, the disc

HETEROMERA. 497

flattened, the lateral portion slightly depressed, the surface almost smooth, opaque towards the sides and
apex, the epipleure towards the apex separated from the flanks by a sharp carina ; beneath shining, the
flanks of the prothorax, and the pro- and mesosternum exceedingly coarsely punctate, the metasternum and
venter very sparsely, more finely punctate ; prosternum rounded and declivous behind, slightly produced ;

legs very coarsely punctured, sparsely pubescent ; anterior tibie with a short blunt tooth at the tip.
Length 193, breadth (elytra) 64 millim. (<.)

Hab. Mexico, Zapotlan (Flohr).

One example. In this species the elytra are very elongate, subparallel, and narrower
than the thorax, at least in the male sex; the hind angles of the thorax are very
prominent and produced behind, external to the rounded humeri of the elytra.
A. flohri has a different facies from any other Mexican species of the genus.

21 (a). Asida moricoides. (Tab. XXII. fig. 14.)

Elongate, broad, dull black, glabrous. Head sparsely, rather coarsely punctate; prothorax broader than long,
the sides rounded at the middle, obliquely converging in front, and sinuous and converging behind, the
hind angles acute and prominent, the anterior angles strongly, triangularly produced in front, acute, the
apex deeply emarginate, the base slightly sinuate on either side, the disc very feebly convex and
sparsely very finely punctate (almost smooth in some specimens), the lateral portion coarsely, more or less
confluently punctured, the margins moderately raised and crenulate, broadly expanded, thin ; elytra
moderately long, flattened on the disc, the width of the prothorax at the base in the male, broader in the
female, narrowing a little in front, widest beyond the middle, with a thickened, crenulated, and reflexed
marginal carina extending from the humeri nearly to the apex, and two shorter caring on the dise—the
inner one usually fainter than the other and sometimes obsolete, the rest of the surface with fine scattered
punctures and shallow transverse wrinkles—sometimes almost smooth, sometimes more coarsely wrinkled,
the humeri reflexed and moderately prominent, the epipleurs in their apical third separated from the
flanks by a sharp carina; beneath sparsely, finely punctate, the entire ventral surface finely scabrous
and without distinct punctures ; prosternum declivous and grooved behind ; anterior tibise with a sharp
tooth at the tip, denticulate on their outer edge.

Length 18-25, breadth 10-14 millim. (¢ 9.)

Hab. Mexico, Villa Lerdo in Durango (Hége).

Sent in abundance by Herr Hége. It is perhaps nearest allied to 4. obsoleta and
A. muricatula, Lec.

21 (s). Asida obliterata.

Closely allied to A. moricoides, and differing as follows :—The elytra more convex, the marginal carina shorter
and less distinct, the other carinz obsolete, the punctuation a little coarser.
Length 20-26, breadth 93-124 millim. (dc -)

Hab. Mexico, Paso del Norte (Hége).

Many specimens. This is probably a varietal form of A. moricoides; nevertheless
it is advisable to name it.

1 (c). Asida segregata.
Closely allied to A. moricoides, and differing as follows :—The elytra with the marginal carina extending to

about one-third from the apex (in one specimen abbreviated and only extending to a little below the humeri),
he other carine obsolete, sparsely, coarsely punctate, the punctures towards the suture and the anterior

498 SUPPLEMENT.

portion of the disc finer and more scattered, the epipleure also with scattered coarsish punctures ; beneath
coarsely punctate, the ventral surface also sparsely and distinctly, in some specimens rather coarsely,

punctured, the punctures usually coarser towards the sides.
Length 23-26, breadth 103-13 millim. (¢ 9.)

Hab. Mexico, Villa Lerdo in Durango (Hége).

Fight examples. A. segregata and A. obliterata differ from A. palmert in having
the lateral margins of the thorax less reflexed and more shallowly grooved within,
the disc very much more finely punctured, and the anterior angles more produced ;
A. segregata also has the elytra more coarsely and closely punctured than in that species.

21 (p). Asida feda. (Tab. XXII. fig. 16.)

Very robust, rather elongate, broad, black, the head and prothorax opaque, the elytra shining, glabrous. Head
very sparsely, rather coarsely punctate ; prothorax very wide, broader than long, much narrower at the
apex than at the base, the sides rounded at the middle, obliquely converging in front, and sinuate before
the base and apex, the apex deeply emarginate, the anterior angles strongly, triangularly produced, acute,
the hind angles acutely produced and extending a little backwards, the base subtruncate at the middle
and without median lobe, the disc feebly convex, almost smooth, or, at most, very sparsely, minutely
punctate, the lateral portion with coarse scattered punctures, the margins very broadly expanded, trans-
versely wrinkled and shallowly grooved within ; elytra convex, rather elongate, the width of, or very
little wider than, the prothorax at the base, subparallel in their basal half, or very slightly widened
towards the middle, with a prominent humeral callus, which is not continued downwards in the form of
a marginal carina and is slightly excavate within for the reception of the hind angles of the prothorax,
the surface, including the flanks, sparsely, coarsely punctate, the basal portion of the disc sometimes with
finer punctures, the epipleure at the apex separated from the flanks by a sharp carina; beneath sparsely,
coarsely punctate, the ventral surface finely scabrous, with fine scattered punctures and shallow longitu-
dinal wrinkles ; prosternum rounded and declivous behind ; anterior tibise sharply toothed at the apex,
rather coarsely denticulate on their outer edge.

Length 20-29, breadth 10-14 millim. (¢ @.)

Hab. Mexico, Villa Lerdo in Durango, Saltillo in Coahuila (Hége).

.Sent in abundance from Villa Lerdo. More parallel than A. segregata and A. pal-
meri; the thorax relatively broader, with the lateral margins more broadly expanded
and the hind angles more produced and extending a little backwards; the elytra less
dilated behind, more regularly convex, with a prominent humeral callus, but no trace
of a marginal carina. The disc of the thorax is almost smooth, or, at most, very
sparsely, minutely punctate.

21(s). Asida tarda. (Tab. XXII. fig. 17.)

Very broad, short, dull black, glabrous. Head shallowly, transversely depressed in front, sparsely, rather
coarsely punctate ; prothorax broader than long, moderately rounded at the sides, the latter sinuate and
slightly converging behind, the hind angles prominent, rectangular, and outwardly directed, the apex
deeply emarginate, the anterior angles triangularly produced in front, the dise feebly convex, sparsely,
finely punctate, the lateral portion with very coarse scattered punctures, the margins thickened, rather
hroadly expanded, and shallowly grooved within, the base truncate, without median lobe; elytra short,
moderately convex, wider than the prothorax, a little rounded at the sides, widest at the middle, with a
raised marginal carina extending from the very prominent obtuse humeri (which are excavate within for

HHETEROMERA. 499

the reception of the hind angles of the prothorax) to about one-third from the apex, the base carinate and
quite straight, the apical portion somewhat abruptly declivous, the entire surface, including the flanks,
sparsely, coarsely punctate ; beneath sparsely, coarsely punctured, the ventral surface finely scabrous and
with scattered fine punctures, which towards the sides become much coarser; prosternum very broad,
declivous behind; anterior tibise denticulate on their outer edge, with a long, sharp, stout tooth at the
apex.

Length 20, breadth 11 millim.

Hab. Mexico, Saltillo in Coahuila (Hége).

One example. This species somewhat resembles A. latissima, but is shorter and
has a very differently formed thorax. The thorax and elytra are very broadly truncate
at the base; the humeri are strongly raised but obtuse, and excavate within for the
reception of the hind angles of the thorax.

23. Asida collaris.
Asida marginicollis, huj. op. p. 60 (nec Rosenh.).

To the Mexican locality given, add:—Lagos, Aguas Calientes city (Hége).

The three specimens described are all females. The male is narrower and more
parallel; it greatly resembles some of the Mexican species of Calosoma. A. lata,
females only of which are known, is perhaps an extreme form of A. collaris.

23 (a). Asida furcata. (Tab. XXII. fig. 15.)

Elongate-oval, brownish-black, opaque, the head and prothorax with a few very short, fine, decumbent hairs,
the elytra glabrous. Head sparsely, rather finely punctate; prothorax broader than long, a little rounded
at the sides, narrowed in front and behind, scarcely narrower at the apex than at the base, the disc trans-
versely convex, declivous behind, and sparsely, very finely punctate, the interspaces densely, exceedingly
minutely punctate, the lateral margins slightly crenulate, expanded, reflexed, and grooved and coarsely
punctured within, the anterior angles acutely produced in front, the hind angles subrectangular, the base
feebly trisinuate, the apex crenulate and with some coarsish punctures; elytra the width of the prothorax
at the base, a little rounded at the sides, rapidly widening to beyond the middle, with the apex somewhat
produced, slightly emarginate at the base, with an acutely raised marginal ridge extending from the
subacute humeri almost to the apex, an acute carina extending inwards from this at about one-third from
the base, and a curved, sharp, median carina extending from the base downwards and parallel with the
second posteriorly, the rest of the surface with scattered, irregularly arranged, fine, conical elevations, the
space between the median carina and the suture flat, the epipleuree not separated from the flanks by
a sharp carina at the apex, the flanks sparsely, rather coarsely punctate ; the ventral surface densely,
exceedingly minutely punctate, with scattered fine punctures, the flanks of the prothorax with some
rather coarse muricate impressions; prosternum broadly longitudinally excavate between the coxe,
declivous behind ; anterior tibia with a short tooth at the tip.

Length 15, breadth 7$ millim.

Hab. Mexico, Villa Lerdo in Durango (Hoge).

One example. Probably an ally of A. bifurca, Lec., from Cape San Lucas. The
only Mexican species approaching it is A. unicostata. The median carina on the
elytra is curved inwards towards the suture behind and there parallel with the branch

500 SUPPLEMENT.

of the marginal one; the fine, conical, irregularly arranged elevations on the elytra
resemble punctures at first sight.

23 (z). Asida latissima. (Tab. XXII. fig. 18.)

Very broad, oblong-oval, black, shining, almost glabrous. Head deeply, transversely impressed in front,
sparsely, rather coarsely punctate ; prothorax broader than long, strongly rounded at the sides, moderately
narrowed in front, deeply emarginate at the apex, the disc transversely convex, sparsely, minutely punc-
tate, the lateral margins crenulate, broadly expanded, rather thin, and very deeply grooved and trans-
versely wrinkled within, the anterior angles sharply triangular, the hind angles almost rounded, the base
transversely depressed in the middle and somewhat rounded; elytra the width of the prothorax at the
base, rounded at the sides, widening to the middle, transversely convex, with a very sharply raised
marginal carina extending from the obtuse but prominent humeri to a short distance from the apex, the
base shallowly emarginate, the entire surface sparsely, coarsely punctate ; beneath sparsely, finely punctate,
the ventral surface also longitudinally wrinkled; prosternum grooved in the middle between the coxe,
declivous behind; anterior tibie sharply toothed at the apex.

Length 23, breadth 13 millim.

Hab. Mexico, Villa Lerdo in Durango (Hége).

One example. Belongs to the Euschides-group, but broader than any of the allied
species known to me. ‘The lateral margins of the thorax are broadly expanded, and
very deeply grooved and transversely wrinkled within.

24 (as). Asida horrida. (Tab. XXII. fig. 13.)

Oblong-oval, rather broad, pitchy-brown, opaque, thickly clothed with yellowish decumbent hairs, the elytra
with intermixed long, erect, bristly hairs. Head thickly, coarsely punctate; prothorax broader than
long, narrower at the apex than at the base, the sides strongly rounded at the middle, obliquely con-
verging in front and behind, the apex deeply emarginate, the anterior angles produced in front, the
hind angles distinct but not prominent, the base rounded, transversely depressed in the middle, the
disc strongly transversely convex, coarsely, rather thickly punctate, and with indications of an impressed
median line, the lateral margins reflexed and crenulate, rather broadly expanded, somewhat deeply
grooved within ; elytra a little wider than the prothorax, flattened on the disc, subparallel in their median
third, slightly narrowed in front and abruptly narrowed behind, emarginate at the base, with a sharp
lateral carina, which bifurcates a little below the shoulder, and extends to within a short distance of the
apex, and two shorter, parallel carine on the disc—the inner carina faint, the others surmounted by a
series of tubercular elevations, each of which bears an erect bristly hair,—the interspaces with scattered
rather coarse punctures and small conical elevations, the former bearing decumbent hairs and the latter
erect bristles, the humeri thickened and reflexed, but obtuse; the entire under surface very coarsely,
thickly punctate, each puncture bearing a decumbent bristly hair; prosternum declivous behind; legs
very roughly punctured ; anterior tibiee with a very long curved spine at the apex, denticulate on their
outer edge.

Length 123-16, breadth 63-83 millim.

Hab. Mexico, Nuevo Laredo in Tamaulipas (/ége).

Five specimens, from just within our northern boundary. . This insect is very distinct
from any other Mexican species of the genus known to me; it comes nearest to
A. villosa*. A. puncticollis, Lec. (nec Sol.), is an allied form, but it has not costate
elytra.

* Specimens of A. horrida, A. feda, A. obliterata, A. moricoides, and A. geminata have been examined by
Dr. Horn, who informs me that they are all unknown to him.

HETEROMERA. 501

24 (p). Asida unicostata, (Tab. XXII. fig. 19.)

Elongate-oval, black, opaque, very sparsely clothed with fine, appressed (easily abraded), yellowish scaly
hairs. Head coarsely, sparsely punctate, smoother between the eyes; prothorax broader than long,
rounded at the sides, moderately narrowed in front, and a little narrowed behind, the dise transversely
convex and almost smooth, the lateral margins crenulate, broadly expanded, thin, and somewhat deeply
grooved within, the anterior angles triangularly produced, the hind angles rectangular, the base trisinuate
and deeply, transversely depressed in the middle, the median lobe very broad and produced on either side
behind ; elytra moderately elongate, the width of the prothorax at the base, gradually widened to beyond
the middle, and with the apex produced, subtruncate at the base, with a sharply raised marginal carina
extending from the subdentiform humeri nearly to the apex, and a strongly raised shorter and stouter
median ridge, the space between the median carina and the suture smooth and flat, that between it and
the marginal carina sloping, more distinctly pubescent, and with two rows of scattered, smooth, rather
coarse granular elevations—one, median, placed posteriorly upon a faint carina, the other more irregular,
close to the margin, the epipleurse towards the apex separated from the flanks by a sharp carina, a short
row of granular elevations below the apical portion of the marginal carina; the ventral surface opaque,
finely scabrous, and with some widely scattered fine punctures; prosternum rounded and declivous behind
not, produced ; anterior tibiz with a sharp tooth at the apex.

Length 19, breadth 9 millim.

Hab. Mexico, Venta de Zopilote in Guerrero 2800 feet (H. H. Smith).

One specimen only of this curious species has been received.

25 (a). Asida marginata.
Pelecyphorus marginatus, Lec. Ann. Lye. New York, v. p. 128°.
Asida marginata, Horn, Rev. Ten. of Am. north of Mexico, p. 288°.
Pelecyphorus rimatus, Lec. Proc. Acad. Phil. vii. p. 223°.
Philolithus rimatus, Lacord. Gen. Col. v. p. 158, nota’.

Hab. Norrn America!, desert regions bordering the Gila River of Arizona?! 2,
Mexican boundary *.—Mexico, Northern Sonora (Morrison), Paso del Norte (Hoge).

Asida difficilis (p. 61).
To the Mexican localities given, add :--Tula in Hidalgo (/Hége).

Sent in abundance by Herr Hoge. A. difficilis seems to be perfectly distinct from
A. pubescens. The anterior angles of the thorax are very acute.

' Asida costata (p. 62). |
Asida costata (Sol.), huj. op. p. 62 (nec Fisch., 1843).

To the locality Mexico, add :—Tenango del Valle (Richardson), Toluca, Jalapa
(Hoge).

Sent in plenty by Mr. Richardson. In a specimen received from Herr Hége,
labelled (perhaps incorrectly) as from Jalapa, the elytral coste are less raised than

usual.

pon CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 3TT

502 SUPPLEMENT.

Asida obovata (p. 63). |
To the Mexican locality given, add :—Paso del Norte in Chihuahua (Hoge).

Asida blapsoides (p. 63).
To the Mexican localities given, add :—Zapotlan in Colima, Guadalajara, Toluca
(Hége), Amecameca (Flohr), Volcan de Ixtaccihuatl 11,500 feet (Richardson).

A very close ally of A. obovata and A. convera, Lec., but differing from both of them
in the less reflexed margins of the thorax, the anterior angles of which are more obtuse.
The coarsely punctured specimens referred by me to this species, of which we have
received but few as yet, will probably have to be separated ; these include two forms—
one with, the other without, a marginal carina to the elytra.

Asida blanda (p. 63).
To the Mexican locality given, add :—Aguas Calientes city, Lagos (Hoge).

Distinct from A. blapsoides in all its varieties by the more thickened and reflexed
lateral margins of the thorax; A. obovata has the thoracic margins more narrowly
reflexed.

Asida sphericollis (p. 64).
To the Mexican locality given, add :—Aguas Calientes city (Hoge).

Two specimens.

36. Asida convexicollis.
Euschides convexicollis, Lec. Proc. Acad. Phil. vii. p. 224°.
Asida convexicollis, Horn, Rev. Ten. of Am. north of Mexico, p. 288 (nec Allard) *.
Hab. NortH America, Arizona?, Mexican boundary 1.—Mexico, Paso del Norte,
Chihuahua city (Hége), Chihuahua and Durango’.

Sent in numbers from Chihuahua by Herr Hoge.

37. Asida elata.
Pelecyphorus elatus, Lec. Proc. Acad. Phil. vi. p. 445°; Thoms. Arcana Nature, p. 125, t. 12,
fig. 7°.
Philolithus elatus, Lacord. Gen. Col. v. p. 158, nota’.
Asida elata, Horn, Rev. Ten. of Am. north of Mexico, p. 289 *.
Pelecyphorus difformis, Lec. Proc. Acad. Phil. vii. p. 223°.
Philolithus difformis, Lacord. Gen. Col. v. p. 158, nota *,

Hab. Norta America, Oregon to Texas, Mexican boundary 15,._-Mrxico, Paso del
Norte (Hodge).

Three specimens of this peculiar species have been received from within our limits.

HETEROMERA. 503

38. Asida ingens. (Tab. XXII. fig. 20.)

Very broad and robust, moderately elongate, black, the head and prothorax opaque, very sparsely pubescent,
the elytra slightly shining, glabrous. Head deflexed, rugosely punctured ; eyes small, transversely oval,
not extending beneath the head ; prothorax transversely convex, much broader than long, only a little
wider at the base than at the apex, widest before the middle, greatly dilated at the sides, the latter
strongly rounded anteriorly, obliquely converging behind, and abruptly narrowed in front, the margins
crenate and raised, the apex moderately emarginate, the base truncate, the anterior angles distinct but
obtuse, the hind angles obtuse, the entire surface very rugosely punctured; elytra narrower than the
prothorax at the base, rapidly widening to beyond the middle, abruptly narrowed and abruptly declivous
behind, truncate at the base, and produced at the apex, with an undulating marginal carina extending
from the outwardly-directed dentiform humeri to about one-fourth from the apex, and two coarse very
sinuous carine on the disc, the interspaces with very coarse, transverse, irregular elevations, those along
the suture more regularly arranged, the flanks with numerous granular elevations; beneath coarsely,
shallowly, rather closely punctate ; prosternum very broad, declivous behind; legs very stout ; anterior
tibize with a moderately long tooth at the outer apical angle.

Length 253-264, breadth 143-15 millim.

Hab. Mexico, San Isidro in Coahuila (ége).

Two specimens of this very large species have been obtained. The elytral sculpture
resembles that of A. sordida. The thorax is very strongly, arcuately dilated anteriorly
and obliquely narrowed behind; the elytra are narrowed and truncate at the base,
the humeri dentiform and outwardly directed. In its small, transversely-oval eyes,
deflexed head, stout limbs, &c., A. ingens approaches A. (Tisamenes) truquii.

MICROSCHATIA (p. 66).
Microschatia punctata (p. 66).

Var. The elytra each with three irregular raised lines or coste, the punctuation much coarser and partly
confluent ; the sides and apex of the abdomen sparsely, coarsely punctate.

Hab. Mexico, Zimapan in Hidalgo (Hoge).

Sent in abundance by Herr Hége. MUM. punctata has been recorded by Dr. Horn
(Rev. Ten. of Am. north of Mexico, p. 282) as from Lower California, but it is not
improbable that his insect belongs to another species; neither in the typical form nor
in the above-described variety can the thorax be described as “smooth,” the disc

being always very coarsely, sparsely punctate.

ASTROTUS (p. 66).

1(a). Astrotus regularis.
Astrotus regularis, Horn, Rev. Ten. of Am. north of Mexico, p. 290°.

Hab. Norra America, Texas 1.—Muxico, Nuevo Laredo in Tamaulipas (Hoge).
Six specimens, agreeing perfectly with others from Texas in Mr. F. Bates’s

collection.

3 TT 2

604 SUPPLEMENT.

Astrotus seticornis (p. 67).
To the Mexican locality given, add :—Salazar (Hége)..

Six specimens.

4, Astrotus undatus. (Tab. XXII. fig. 25.)

Oblong-oval, flattened above, piceous or pitchy-brown, opaque, sparsely clothed with rather long,
scaly hairs. Head coarsely, thickly punctured; antenne moderately | slender, clothed with very long
sete, the intermediate joints longer than broad, ovate, the tenth strongly widened ; prothorax broader
than long, not wider at the base than at the apex, the sides rounded at the middle, converging 10 front
and behind, and sinuate before the base, the latter truncate, the apex deeply emarginate, the anterior
angles sharp, the hind angles rectangular, the lateral margins expanded and raised, shallowly grooved
within, the surface coarsely, thickly punctate, the disc with a smooth median line and usually with one
or two irregular depressions on either side; elytra flattened, widest beyond the middle, gradually
narrowing anteriorly, and strongly produced at the apex, with a serrate, sharply raised, marginal carina
extending from the rounded humeri nearly to the apex, and numerous very irregular transverse or
oblique raised lines and points, which become more distinct beyond the middle, the interspaces and
epipleurs with fine, deep, scattered punctures ; beneath slightly shining, coarsely punctate, the punctures
on the venter finer and submuricate, each bearing a decumbent yellowish hair; prosternum declivous
behind ; middle coxal cavities almost closed externally ; anterior tibiee with a short tooth at the apex.

Length 83-134, breadth 34-6 millim. (¢ 2.)

Hab. Mexico, Ventanas in Durango (Hége).

decumbent,

Numerous examples, all in very clean condition. Allied to A. seticornis, but
differing from it in the truncate base of the thorax, the less oblique humeri, and the
stouter antenne; the elevations on the elytra are less distinct and more interrupted,
the hairs are longer and coarser, and the punctuation is very sparse. The following is
also an allied form. |

5. Astrotus erosus,

Oblong-oval, black, thickly covered with a brownish agelutinated earthy coating ; the prothorax with short,
decumbent scaly hairs; the elytral elevations surmounted by fascicles of very coarse semi-erect hairs, the
marginal carina with similar hairs. Head thickly punctured; antenne short, slender, clothed with very
long sete, the intermediate joints longer than wide, ovate, the tenth greatly widened; prothorax
transverse, scarcely wider at the base than at the apex, narrowed in front and behind, and slightly
sinuate before the base, the latter truncate, the hind angles subrectangular, the apex rather deeply
emarginate, the anterior angles sharp, the disc feebly convex, the lateral margins raised, shallowly
grooved within, the surface thickly punctured, the disc (apparently) with a smooth median line; elytra
widest beyond the middle, a little rounded at the sides, narrowed in front, and produced at the apex,
with a marginal carina extending from the broadly rounded humeri nearly to the apex, a short median
carina at the base, and some oblique, partly coalescent, raised lines and points, the rest of the surface
and the epipleure coarsely, sparsely punctate ; beneath closely and coarsely punctured, the punctures on
the venter finer and muricate; prosternum declivous behind; middle coxal cavities almost closed
externally ; anterior tibiee with a rather long tooth at the apex. .

Length 10, breadth 44 millim.

Hab. Mexico, San Juan de los Llanos (Flohr).

One example. Broader and less parallel than A. seticornis and A. undatus. The

HETEROMERA, 505

thorax is truncate at the base, with the sides only feebly sinuate behind; the antennz
are very slender, with the tenth joint greatly widened; the elytral punctuation is
coarse, and the elevations consist of oblique, partly coalescent, lines and points and a
short carina at the base, each surmounted by very coarse, short, suberect hairs. The
punctuation of the upper surface is completely hidden by the earthy coating.

6. Astrotus nosodermoides. (Tab. XXII. fig. 22.)

N snl subparallel, black, thickly covered with a brownish agglutinated earthy coating, the prothorax with
coarse, decumbent scaly hairs, the elytra (apparently) with very short ‘suberect hairs. - Head coarsely,
muricately punctured; antenne slender, the intermediate joints ovate, longer. than. broad, the tenth
greatly widened ; prothorax broader than long, not wider at the base than at the apex, moderately
narrowed in front and behind, slightly sinuate before the base, the latter truncate, the apex rather
deeply emarginate, the anterior angles prominent, the hind angles subrectangular, the disc moderately
convex, the lateral margins considerably raised, the surface covered with scattered granular elevations ;
elytra rather elongate, not wider than the prothorax, subparallel, widest beyond the middle, obliquely
narrowed at the base, and flattened on the disc, with an interrupted, serrate, marginal carina extending
from the obtuse humeri nearly to the apex, a stout, straight, median carina extending to the middle, and
beyond this several raised points and curved, transverse, irregular elevations, the interspaces and the

- epipleure exceedingly coarsely, sparsely punctate ; the entire under surface coarsely, densely punctured ;
prosternum declivous behind; middle coxal cavities almost closed externally ; anterior tibic with a sharp
tooth at the apex.

Length 7, breadth 3 millim.

Hab. Mexico, Real del Monte (Richardson).

One specimen. More parallel and more elongate than A. seticornis; the thorax
truncate at the base, and with the sides only feebly sinuate behind; the elytra with
the elevations differently arranged, and the punctuation exceedingly coarse and sparse.
The entire upper surface is covered with an earthy incrustation, so that the pubescence
and sculpture is in great part hidden.

SICHARBAS (p. 67).
Sicharbas lobatus (p. 67).
To the locality Mexico, add :—Omilteme in Guerrero (H. H. Smith), Huitzilac in
Morelos (Hége).

Many specimens.

OLOGLYPTUS (p. 68).

Ologlyptus anastomosis (p. 68).
To the locality Mexico, add :—Refugio in Durango, Santa Clara in Chihuahua,
Chihuahua city (Hoge).

Chihuahua specimens agree with Leconte’s figure; the others I have seen from
Mexico have the elytral costes more interrupted.

506 SUPPLEMENT

Ologlyptus graciliformis (p. 68). |
To the Mexican localities given, add :—Mexico city, Tula and Pachuca in Hidalgo

(Hoge).

2(a). Ologlyptus hebes. (Tab. XXII. fig. 23.)

Very robust, broad, dull black, thickly covered with a brownish, agglutinated, earthy coating, and with short,
scattered, coarse scaly hairs. Head coarsely punctate; antenne short and stout, clothed with very
coarse, short hairs, the eighth and ninth joints transverse ; prothorax broader than long, not wider at the
base than at the apex, the sides rounded at the middle, converging in front and behind, and sinuous
before the base, the latter subtruncate, the apex deeply emarginate, the anterior angles prominent but
obtuse, the hind angles prominent, rectangular, the disc feebly convex, the lateral margins raised and
somewhat expanded, the entire surface very densely, coarsely punctate, each puncture bearing a coarse,
decumbent, scaly hair ; elytra flattened on the disc, widest a little behind the middle, slightly rounded
at the sides, considerably narrowed in front, and produced at the apex, with a stout marginal carina
extending from the obtuse humeri nearly to the apex, a similar carina on the middle of the disc, the two
almost connected posteriorly, and a short carina midway between them, the rest of the surface (and
epipleure) with scattered granular elevations, each elevation bearing a short, semi-erect, scaly hair ;
beneath thickly punctured, each puncture bearing a coarse, decumbent, scaly hair ; prosternum depressed
in the middle between the coxz, declivous behind; middle coxe with a small, but distinct, trochantin ;
legs exceedingly stout, clothed with very coarse, scaly hairs; anterior tibie with a short tooth at

the apex.
Length 19-24, breadth 10-114 millim.

Hab. Mexico, Villa Lerdo in Durango (Hége).

Nine examples. This species is perhaps nearest allied to O. graciliformis, from
which it differs in its large size, robust form, and very stout limbs. The middle coxal
cavities are not closed externally and they have a small but distinct trochantin.

Ologlyptus canus (p. 68).
To the locality Mexico, add :—near the city (Hége).

Four examples.

Ologlyptus bicarinatus (p. 69).

This species, which is still unique, would be better placed in Asida, the trochantin
of the middle coxe being moderately prominent.

Ologlyptus planatus (p. 69).

In the description of this insect I have omitted to mention * that the ninth joint of
the antenne is widened and strongly transverse, and very little narrower than the
tenth, the apical three joints forming a sort of club.

* The antenne are incorrectly drawn by our artist, Tab. II. fig. 16.

HETEROMERA. 507

BRANCHUS (p. 71).
Branchus obscurus (p. 72).

To the localities given, add:—Mexico, Acapulco (Flohr, Hége), Dos Arroyos in
Guerrero (H. H. Smith).

In the single specimen from Guatemala the thorax is broader behind, and without
median carina. B. obscurus closely resembles various Aside, from which it may be
easily known by the broader apical joint of the antenne, the exposed ligula, and the
much smaller mentum, the latter not covering the base of the maxille. The type is
contained in Mr. F. Bates’s collection.

2. Branchus opatroides. (Tab. XXII. fig. 24.)

Broad oval, convex, dull black, somewhat thickly clothed with short, subclavate, erect, brownish hairs.
Head deeply sunk into the prothorax, very coarsely, densely punctate, the lateral lobes of the front
impinging upon the eyes and partly dividing them; antennz short, the apical three joints widened, very
strongly transverse ; prothorax strongly transverse, much broader at the base than at the apex, convex,
widest at the middle, considerably narrowed in front and slightly narrowed behind, the apex rather
deeply emarginate, the anterior angles prominent, the hind angles rectangular, the base broadly truncate
at the middle and very feebly sinuate on either side, the surface very coarsely, confluently punctate, the
disc with a smooth, fine, raised median line and one or two irregular smooth elevations on either side ;
scutellum not visible; elytra the width of the prothorax at the base, slightly rounded at the sides,
convex, rather short, with an irregular marginal carina extending from the somewhat prominent humeri
nearly to the apex, a similar carina adjacent to it, and two shorter carine on the dise—the one nearest

the suture indistinct, and each formed by rows of rounded elevations,—the interspaces with scattered
muricate punctures and rounded elevations, the latter becoming coarser towards the sides and there
confused with those forming the carine ; beneath shining, coarsely punctate, the ventral segments (the
fifth excepted) smoother in the middle, each puncture with a decumbent coarse hair; prosternum
subhorizontally produced, abruptly declivous behind; middle coxal cavities widely open externally, and
with large trochantin; legs rather short, roughly punctured and setose; anterior tibise with a short
tooth at the apex.

Length 7-8, breadth 34-43 millim.

Hab. Mexico, Vera Cruz (Sallé, Hoge), Paso de San Juan in Vera Cruz (Hége),
Chapala in Jalisco (Flohr).

Sent in plenty from Vera Cruz. This species has the chief structural characters of
Branchus, and I therefore include it in that genus. In facies it resembles an Opatrum.
B. floridanus, Lec., seems to be an allied but very much larger form. In most of the
specimens the upper surface is covered with an earthy incrustation. ‘The thorax and
elytra are almost truncate at the base.

OXINTHAS (p. 72).

Oxinthas praocioides (p. 72).
Sent in considerable numbers by Herr Hoge from the Isthmus of Tehuantepec; also
by Mr. Richardson from Santo Domingo, Tehuantepec.

508 SUPPLEMENT.

CRYPTOGLOSSA (p. 738).
4. Cryptoglossa granulifera.

Black, slightly shining. Head with a few fine scattered punctures in front, smooth behind; antenne strongly
flattened, the last joint truncate ; prothorax slightly narrower at the base than at the apex, broader than
long, feebly, transversely convex, narrowed and sinuate at the sides behind, the anterior and hind angles
prominent, subacute, the surface with very minute scattered punctures (only visible under a strong lens) ;
elytra oval, the width of the prothorax at the base, seriate-punctate (coarsely in some specimens, finely
and muricately in others), the punctures becoming obsolete on the apical declivity, the interstices (the
first excepted) each with a series of distantly-placed granular elevations, which become a little coarser
towards the sides; beneath opaque, almost impunctate ; prosternum very broadly horizontally produced,
broadly rounded at the apex, the mesosternum sharply raised on either side and excavate in the middle
for its reception ; mentum sparsely punctate, depressed in the middle in front.

Length 18-20, breadth 8-10 millim.

Hab. Mexico, Villa Lerdo in Durango (Hége).

Five examples. Allied to C. mexicana and C. levis, but differing from both of
them in having a row of distantly placed granular elevations on each of the elytral
interstices (the first excepted); the elytral sculpture is variable, but the granular
elevations are always distinct, becoming a little coarser towards the sides.

CENTRIOPTERA (p. 74).

Centrioptera caraboides (p. 74).

To the localities given, add:—MeExico, Matamoros Izucar (Hége), Mochitlan -in
Guerrero (Baron), Yautepec in Morelos (H. H. Smith).

Sent in plenty from Matamoros Izucar.

8. Centrioptera spiculosa.

Moderately elongate, broad, black, slightly shining. Head very coarsely, sparsely, irregularly punctate ;
antennz slightly flattened, the last joint pointed at the tip; prothorax broader than long, feebly,
transversely convex, truncate at the base, rather deeply emarginate in front, about equal in width at the
base and apex, the sides broadly rounded anteriorly, strongly sinuate behind, the anterior and hind
angles produced and subacute, the surface very minutely, sparsely punctate—the disc smooth in some
examples, more distinctly punctate in others,—the punctures coarser and always distinct at the sides ;
elytra oblong-oval, slightly wider than the prothorax at the base, flattened on the disc, with series of
transverse, shallow, muricate punctures, the interspaces (the first excepted) each with a regular series of
not very closely placed fine spicule, which from the base to the apex become coarser towards the sides,
those on the apical declivity not longer than the others, the humeri obtuse but usually distinct; beneath
very coarsely punctate, the venter irregularly wrinkled and punctured; mentum very sparsely, coarsely
punctate, with an interrupted median groove ; prosternum concave, strongly, horizontally produced, the
mesosternum slightly excavate for its reception, the latter abruptly declivous in front; legs very coarsely
punctate, the tibize with fine spicule, the hind femora denticulate within.

Length 16-28, breadth 83-123 millim.

Hab. Mexico, Villa Lerdo in Durango (Hége), San Felipe Sabinas in Coahuila
flohr),

Sent in abundance from Villa Lerdo. Nearest allied to C. infausta, Lec., from

Fe erent ee

HETEROMERA. 509

Texas, but differing from it in the elytra having regular series of fine spicule. The
punctuation of the thorax is variable, but the sides are always distinctly punctate.

EUSATTUS (p. 74).

Kusattus brevis (p. 75).
To the Mexican locality given, add :—Zacatecas city, Las Vigas (Hége).

The flanks of the prothorax and the elytral epipleure are slightly hairy in this
species, the latter being gradually widened to the base ; the prosternum is not margined
at the apex.

5. Kusattus erosus.
Eusattus erosus, Horn, Rev. Ten. of Am. north of Mex. p. 294, t. 15. fig. 21°; Trans. Am. Ent.
Soc. x. p. 304”.

Hab. Norra America, Lower California 1.—Mexico, Villa Lerdo in Durango (Hoge).

6. Eusattus reticulatus.
Zophosis reticulata, Say, Journ. Acad. Phil. iii. p. 250 (1824) 1; Complete Writings, ii. p. 147°.
Discodemus reticulatus, Lec. Class. Col. N. Am. p. 223 (1862) °.
Eusattus reticulatus, Horn, Rev. Ten. of Am. north of Mex. p. 293*; Trans. Am. Ent. Soc. x.
p. 304°,
Hab. Nortu America !, Kansas, Colorado, New Mexico, and Arizona 4.—MExico, Paso
del Norte, Chihuahua city (Hége).

Sent in plenty from Paso del Norte.

7. Kusattus venosus.

Oblong-oval, broad, convex, dull black, almost glabrous. Head very sparsely, finely punctate, trisinuate in
front, the anterior margin slightly reflexed; prothorax very minutely, sparsely punctate, the punctuation
more distinct at the sides; elytra slightly narrowed anteriorly, in some specimens subparallel towards the
base, very obtuse behind, each with a marginal carina extending nearly to the apex and two raised lines
on the disc, the interspaces finely, transversely reticulate and with shallow rather coarse punctures which
are here and there confluent; epipleure slightly widened at the base, smooth, glabrous; prosternum
very broad, convex, moderately produced, immarginate at the tip; anterior tibiee greatly produced at their
outer apical angle.

Length 11-123, breadth 73-83 millim.

Hab. Mexico, Zapotlan in Colima, Guadalajara in Jalisco (Hége).

Numerous examples from both localities. Closely allied to £. reticulatus, but sepa-
rable from that insect by its more parallel, less inflated shape, different elytral sculpture,
and the shorter, broader, and more convex prosternal process. The depressions on the
elytra are usually filled with adherent earthy matter.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 3UU

510 SUPPLEMENT.

8. Eusattus sculptus.

Broad-oval, convex, black, almost glabrous, the head and prothorax opaque, the elytra slightly shining. Head
and prothorax smooth or exceedingly minutely punctate, the prothorax deeply grooved at the sides behind,
the lateral margins moderately thickened ; elytra each with six rather broad, faint costs, without marginal
carina, the interspaces rather coarsely, confluently punctate, and feebly transversely reticulate ; epipleure
and flanks of the prothorax slightly hairy, the epipleure gradually widening to the base and feebly
punctured ; prosternum strongly, horizontally produced, the apex immarginate ; anterior tibie strongly
produced at their outer apical angle.

Length 93-13, breadth 53-8 millim.

Hab. Mexico, Northern Sonora (Morrison), Paso del Norte, Villa Lerdo in Durango
(Hoge).

Sent in abundance by Herr Hége from the Mexican frontier. The elytra are sculp-
tured as in E. reticulatus, but they are without a marginal carina; in some specimens
the basal portion is smooth. The thorax is deeply grooved on either side behind, so
that the margins appear to be somewhat expanded posteriorly. The elytral punctuation
shows no tendency to become muricate. Dr. Horn, to whom I have forwarded an
example, informs me that this species also occurs in Arizona and Colorado, and that it
is allied to E. difficilis, which has the epipleure more hairy and the elytral sculpture
muricate.

9. Eusattus mexicanus.

Oblong-oval, broad, convex, dull black, almost glabrous. Head finely, sparsely punctate, strongly trisinuate in
front, the anterior margin reflexed and grooved within; prothorax minutely, sparsely punctate on the
disc, the punctures more distinct towards the sides; elytra with three more or less distinct raised lines
on the disc, without marginal carina, the interspaces finely transversely reticulate and rather coarsely
punctured, the inflexed portion sparsely punctate; the flanks of the prothorax with a few hairs; the
epipleure abruptly widened at the base, smooth, almost glabrous ; prosternum very broad, rather convex,
moderately produced, the apex broadly rounded and immarginate; anterior tibie strongly and somewhat
obtusely produced at their outer apical angle.

Var. The elytral coste nearly or quite obsolete.

Length 93-14, breadth 53-83 millim.

Hab. Mexico, Villa Lerdo in Durango, Colima city, Sayula in J alisco, Chilpancingo
(Hoge).

Sent in considerable numbers from Sayula. This species. closely resembles L. venosus,
but differs from it in having the anterior margin of the head more strongly trisinuate
and more distinctly carinate; the elytra are without marginal carina and usually have
three raised lines on the disc—these being obsolete in some of the Colima and Villa
Lerdo specimens,—the interspaces reticulate and rather coarsely punctate, the punc-
tures here and crowded together in large shallow fovee ; the prosternum is very broad.

10. Eusattus obliteratus.

Oblong-oval, black, opaque. Head and prothorax very sparsely, minutely punctate; elytra with exceedingly
shallow, rather coarse, widely scattered punctures, and here and there faintly, transversely wrinkled, and
usually with indications of broad obsolete coste, each puncture bearing a very minute scale-like hair,

HETEROMERA. 511

without marginal carina; epipleure abruptly widened at the base, faintly punctured, hairy; prosternum
strongly produced, margined at the apex.
Length 73-9, breadth 43-52 millim. .

Hab. Muxico, Villa Lerdo in Durango (Hoge).

Many specimens. This insect nearly agrees with the description of E. puberulus,
Lec., from Texas, but Dr. Horn, to whom I have submitted an example, informs me
that it is distinct. ZH. obsoletus is the smallest of the Mexican species; it is more
parallel and much narrower than E. brevis, and has the prosternum margined at the

apex. ‘The scale-like hairs on the elytra are only visible under a strong lens and are
easily abraded. |

ELAODES (p. 76).

Elzodes eschscholtzi (p. 77).
Eleodes eschscholtzi (Sol.), huj. op. p. 77, Tab. TIT. fig. 24 (¢) (Dec. 1884).
Eleodes wickhami, Horn, Trans. Am. Ent. Soc. xviii. p. 41, t. 1. fig. 12 (¢) (Feb. 1891) *.

To the localities given, add:—NortH America, Arizona !.

2 (a). Eleeodes macrura.

dg. Very elongate, convex, subfusiform, black, moderately shining. Head sparsely, minutely punctate, the
punctures much coarser on the anterior part; prothorax convex, broader than long, a little narrowed in
front and behind, slightly broader at the base than at the apex, very feebly carinate at the sides (the
carina scarcely visible from above), the anterior angles sharply produced and slightly everted, the surface
exceedingly minutely, sparsely punctate; elytra strongly caudate, including the caudal prolongation more
than four times as long as the prothorax, gradually widening to about the middle and then obliquely con-
verging behind, with rows of very fine approximate punctures, the interstices feebly convex on the disc,
perfectly flat at the sides, and each with a row of distantly placed, submuricate impressions, which are
coarser than those of the strie ; anterior femora armed with a sharp, slightly curved, strong tooth on the
inner side, and emarginate between this and the apex ; anterior tibiee emarginate on the inner side at the
base; posterior tibize feebly sinuous.

Length (including cauda) 34, breadth 12 millim.

Hab. Mexico, Villa Lerdo in Durango (Hége).

One example. More elongate and more fusiform than the same sex of Z. ventricosa ;
the prothorax more convex, and with a very feeble lateral carina; the elytra witha
series of distantly placed submuricate punctures upon each interstice, these punctures
coarser than those of the strie.

Elzodes spinipes (p. 77).

To the Mexican localities given, add:—Zimapan, Tula, and Ixmiquilpan in
Hidalgo (Hége).
Var.? Less ventricose; the elytra flatter, with rows of more distantly placed punctures, the interstices flat, each

with a row of finer, more scattered impressions.

Hab. Mexico, Chihuahua city, Durango city, Aguas Calientes city, Lagos (Hége),

Guanajuato (Flohr, Sallé).
3UU 2

512 SUPPLEMENT.

The typical form has been received in plenty from the States of Hidalgo and San
Luis Potosi. The variety (?) is not uncommon at Guanajuato; but as these specimens
differ a good deal inter se, it is inadvisable to treat them as distinct.

Elzodes ventricosa (p. 78).
To the locality Mexico, add :—Monterey in Nuevo Leon (Hége), Tampico in Tamau-
lipas (Aichardson).

Var. The prothorax a little more elongate and with the anterior angles more prominent.

Hab. Mexico, Villa Lerdo in Durango, Durango city, Saltillo in Coahuila (Hége).

We have received numerous examples of both forms. In the single male from
Coahuila the caudal process of the elytra is considerably reduced in length. LE. ventri-
cosa should be placed in the same section as E. rugosa and E. eschscholtzi, the elytra
being caudate in the male.

Elzodes hispilabris (p. 79).

To the Mexican locality given, add :—Nuevo Laredo in Tamaulipas ( Hage).

Sent in great numbers by Herr Hoge from Nuevo Laredo.

Elzodes gracilis (p. 79).
To the Mexican locality given, add :—Paso del Norte and Santa Clara in Chihuahua,
Chihuahua city, Saltillo in Coahuila (Hége).

The four specimens received from Saltillo have the elytral interstices convex.

Elzodes obscura (p. 79).
To the Mexican locality given, add :—Santa Clara in Chihuahua (Hoge).

9(a). Eleodes tricostata.

Blaps tricostata, Say, Journ. Acad. Phil. iii. p. 262 (1824) *; Complete Writings, ii. p. 154°,
Pimetia tricostata, Kirby, Fauna Bor.-Am. iv. p. 282, t. 5. fig. 9°.
Eleodes tricostata, Horn, Rev. Ten. of Am. north of Mexico, p. 307 *¢.
Eleodes (?) planata, Solier, Studi Ent. p. 366°.
Eleodes robusta, Lec. Proc. Acad. Phil. x. p. 183°.

Hab. NortH America, plains of Kansas and Nebraska and southward into Texas 4.—
Mexico, Nuevo Laredo in Tamaulipas (Hége).

Found in abundance at Nuevo Laredo, just within our northern boundary.

HETEROMERA. 513

11. Elzodes vicina.
Eleodes quadricollis, huj. op. p. 80 (nec Eschsch., Mann.).

Eleodes vicina (Lec.), Casey, Ann. N. Y. Acad. v. p. 895 (Nov. 1890).
? Eleodes sonore, huj. op. p. 85, Tab. IV. fig. 13.

According to Capt. Casey, E. quadricollis, Mann., and E. vicina, Lec., are distinct

species, the former occurring in the vicinity of San Francisco and the latter inhabiting
the Gila valley.

Elzodes alutacea (p. 80).

To the Mexican localities given, add :—Villa Lerdo in Durango, Cholula, Matamoros
Izucar, Atlixco, Amecameca, Salazar, Mexico city (Hége).

The typical form of this very variable species has been received in plenty from

Toluca; the coarsely punctured form (?) (£. maillei) in numbers from various places in
the State of Puebla.

13 (a). Elwodes polita.

Black, shining, elongate-oval, narrow (¢ ), broad-oval and comparatively short (@). Head somewhat closely,
moderately finely punctate ; prothorax transversely subquadrate, widest at one-third from the apex, the
sides strongly rounded anteriorly and obliquely converging behind, the base and apex equal in width, the
anterior angles obtuse, the hind angles subrectangular (obtuse in some specimens), the lateral carina
sharp, the surface very finely, sparsely punctate ; elytra oblong-oval ( ¢), broad-oval and flattened on the
disc (2), with rows of rather coarse, not very closely placed punctures, the interstices strongly convex,
each with an irregular row of fine, widely separated punctures; beneath shining, with a few scattered
fine punctures ; prosternum declivous behind, sulcate in front; anterior femora stout, feebly emarginate
on the inner side before the apex; anterior tarsi clothed with spiny hairs beneath; anterior and inter-
mediate tibiw slightly curved in the male, the upper spur of the anterior pair much longer and stouter
than the lower one in the female ; first ventral segment depressed in the middle behind in the male.

Length 11-13, breadth 43-64 millim. (¢ 92.)

Hab. Mexico, Salazar, Huitzilac (Hége).

Sent in abundance by Hoge. ‘This is probably an extreme varietal form of E. alu-
tacea, from which it differs in the strongly convex elytral interstices. The punctures
of the elytral series are rather coarse and deep, not very closely placed. The female is
comparatively short, very much wider than the male.

13 (zs). Elewodes segregata.

Dull black, elongate-oval, narrow (3), broad-oval (2). Head sparsely, finely punctate; prothorax broader
than long, feebly transversely convex, subquadrate, rounded at the sides anteriorly and slightly sinuous
before the base, the base and apex about equal in width, the anterior angles obtuse, the hind angles sub-
rectangular, the surface exceedingly minutely, sparsely punctate; elytra flattened on the disc anteriorly,
oblong-oval in the male, very much broader in the female, slightly emarginate at the base, and with the
apex rather broadly produced, the humeri somewhat prominent but obtuse, the surface with rows of fine,
shallow, distantly placed punctures, the interstices each with a single row of very minute punctures ;
beneath shining, the ventral surface longitudinally wrinkled and with widely scattered fine punctures ;
prosternum slightly produced, abruptly declivous behind, suleate in front; anterior tarsi clothed with

514 SUPPLEMENT.

short spiny hairs beneath ; anterior femora stout, feebly emarginate on the inner side before the apex
anterior and intermediate tibie slightly curved in the male, the upper spur of the anterior pair longer and
stouter than the lower one in the female ; first ventral segment depressed in the middle behind in the
male.

Length 12-15, breadth 5-8 millim. (¢ @.)

Hab. Mexico, Omilteme and Xucumanatlan in Guerrero (H. H. Smith), Mochitlan
in Guerrero (Baron). |

Twelve examples. Closely allied to E. alutacea, Sol., but differing from all the
varieties of that species in the sculpture of the elytra and in the opaque upper surface.
The male is less elongate and has more slender legs than the same sex of £. amaura.
Apparently confined to Western Mexico.

15 (a). Eleodes amaura. |
Eleodes maura, huj. op. p. 81, Tab. IV. figg. 4, 5 (mec Say).

To the Mexican localities given, add :—Matamoros Izucar, Zimapan (Hége). |

The above name is proposed for the species doubtfully referred to E. maura, Say.
E. elongatula, Sol., quoted as a synonym, may or may not be the species described by
Eschscholtz under the same name. All these descriptions are too imperfect for identi-
fication. Mr. H. H. Smith has sent us a female specimen of this species from Orizaba
with a Gordius emerging from the anus; about three inches of the worm are extruded.

Elzodes rotundicollis (p. 82).
To the Mexican localities given, add :—San Andres Chalchicomula, Cordova (Hége).

Apparently common in the State of Vera Cruz.

Elzodes carbonaria (p. 83).
To the Mexican locality given, add :—Chihuahua (/. Kerr), Paso del Norte, Santa
Clara in Chihuahua, Chihuahua city, Nuevo Laredo in Tamaulipas, Saltillo in Coahuila,
Monterey in Nuevo Leon, Villa Lerdo in Durango, Lagos, Zacatecas (Hodge).

Abundant in Northern Mexico. An extremely variable and puzzling species; some
examples are fusiform, others comparatively short and small; in a few specimens the
elytral interstices are convex.

Elzodes sulcatula (p. 83).
To the locality Mexico, add :—Rio Frio Ixtaccihuatl (£lohr).

One female example. This species should be placed near EF. sulcata. The anterior
tarsi are mutilated in the type, and they are incorrectly described as being clothed with
spiny hairs beneath.

HETEROMERA. 515

Elzodes dilaticollis (p. 83).

Var. Smaller, the prothorax in some specimens less rounded at the sides; the elytra with minute scattered ~

punctures, which sometimes show a tendency to form strie.. The female much broader and less elongate
than the male. °

Length 123-14 millim.
Hab. Mexico, Real del Monte (Hége, Richardson), Toluca (Hége), Patzcuaro (Flohr).

The type of £. dilaticollis is a male (not a female, as stated) and some of the Real
del Monte examples of the same sex agree well with it, except as regards their much
smaller size. . dilaticollis is closely allied to EL. alutacea and E. amaura.

Elzodes longicollis (p. 84).

To the Mexican localities given, add :—Chihuahua (1. Kerr), Santa Clara in Chi-
huahua, Chihuahua city, Villa Lerdo in Durango, Durango city, Lagos, Aguas Calientes
city, Saltillo in Coahuila (Hége).

Var. The elytra with the suture broadly rufous.

Hab. Santa Clara in Chihuahua (Hoge).

The typical form has been sent in plenty by Herr Hoge; of the variety we have received
four specimens, all females.

Elzodes ponderosa (p. 84).

This species should be placed in the same group with E. hepburni, E. forreri, &c.,
the basal joints of the anterior tarsi in the male being densely clothed with fine hairs
‘beneath.

Elzodes ruida (p. 84).
To the Mexican localities given, add:—Amecameca in Morelos, Las Vigas, Cholula

(Hoge).

Elzodes glabricollis (p. 85).
To the Mexican locality given, add :—Aguas Calientes city ({ége), Jaral in Guana-
juato (Lohr).
Mr. Flohr informs me that this species is not uncommon in the States of San Luis
Potosi and Guanajuato.

Elzodes angusta (p. 85).
To the Mexican localities given, add :—Villa Lerdo in Durango, Zapotlan, Zimapan,
Mexico city, San Andres Chalchicomula, Las Vigas (Hoge), Jaral (Flohr).
Some of the smooth varieties of this species are scarcely separable from L. longi-
collis, Lec.

516 SUPPLEMENT.

Elzodes sonore (p. 85).
We have received additional specimens of this insect, including both sexes, from
Northern Sonora. . sonore is probably conspecific with E. vicina, Lec.

Elzodes spinole (p. 86).
To the Mexican localities given, add:—Amula and Omilteme in Guerrero (H. H.
Smith), Mochitlan in Guerrero (Baron), Zimapan (Hége), Mexico city (Flohr, Hoge).

Elzodes longicornis (p. 87). |
Amongst some additional specimens of this species received from Ciudad there are
several with rows of fine punctures on the elytra.

Elzodes forreri (p. 88).
Sent in great numbers by Herr Hoge from Ciudad ; in a few specimens the upper
surface is almost shining, and the elytral punctuation is very fine and diffuse, without

trace of serial arrangement.

38 (a). Elzodes olida.

Elongate, convex, glossy black. Head with a few minute scattered punctures, very broadly triangularly
flattened in front ; prothorax transversely convex, much broader than long, strongly rounded at the sides,
and about equally narrowed in front and behind, the lateral carina sharply raised, the apex deeply
emarginate, the base truncate or feebly emarginate, the anterior angles almost rounded, the hind angles
obtuse but distinct, the surface impunctate ; elytra very elongate and widest beyond the middle in the
male, shorter and more oval in the female, considerably narrowed in front, and with the apex broadly,
obtusely produced, the humeri obtuse, the basal portion of the epipleural carina visible from above, the
surface almost smooth ; beneath slightly shining, the ventral surface with scattered, shallow, transverse
wrinkles and sometimes with a few fine punctures; prosternum abruptly declivous behind ; legs very
elongate, slender ; anterior femora unarmed ; anterior tarsi in both sexes clothed with silky hairs beneath;
anterior tibial spurs subequal; posterior tibice in the male dilated at the apex and sinuous.

Length 18-25, breadth 7-10 millim. (¢ 9.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Thirteen examples. Allied to #. solieri and E. levigata, but more elongate, more
convex, and very much larger than either of those species. The legs are very elongate,
and the posterior tibie are dilated at the tip and sinuous in the male.

Elzodes angulata (p. 91).
To the locality Mexico, add :—Tenango del Valle (Aichardson), Toluca, Mexico city
(Hoge).
An Eleodes sent in numbers by Herr Hége from Toluca is perhaps referable to
E. angulata; and the Oaxaca specimens ( @ ) referred to EL. gravida belong here. The
males are broader and less oval than the same sex of E. alutacea.

HETEROMERA. 517

Elzodes sulcata (p. 92). |
To the locality Mexico, add :—Huitzilac in Morelos (Hége).
Two examples.

49 (a). Eleeodes peropaca.

Moderately elongate, broad, black, very opaque. Head sparsely, rather coarsely punctate; prothorax trans-
versely cordate, flattened on the disc, dilated at the sides, widest at one-third from the apex and strongly
narrowed behind, the apex deeply, the base shallowly, emarginate, the anterior and hind angles obtuse,
the surface rather closely and somewhat coarsely punctured, the punctures deeper and irregularly confluent
at the sides, the disc with indications of a median groove; scutellum almost smooth; elytra elongate-oval,
narrowed in front, abruptly declivous and somewhat acuminate behind, moderately convex, sulcate, the
interstices convex (almost flat towards the suture in one specimen), the entire surface minutely coriaceous
and finely transversely wrinkled, with widely scattered, very minute, smooth, raised points, which are
subserially arranged in the sulci, the latter each with a row of obsolete fovese in one specimen, the
humeri obtuse but distinct, the epipleure almost smooth, the basal portion of the carina visible from
above ; beneath irregularly wrinkled, the ventral surface with scattered granular elevations ; prosternum
declivous behind; the basal joints of the anterior tarsi clothed with fine hairs beneath ; anterior femora
slightly emarginate on the inner side near the apex.

Length 19-20, breadth 83 millim.

Hab. Mexico, Villa Lerdo in Durango, Toluca (Hége).

‘wo specimens. This species approaches the section Discogenia, Lec.; it is allied to
E. consobrina, Lec.

49 (z). Eleodes tessellata.

Oblong-oval, broad, black, opaque. Head finely, sparsely punctate ; prothorax transverse, a little flattened on
the disc and dilated at the sides, about equally narrowed in front and behind, the sides strongly rounded
at the middle, the apex deeply emarginate, the base truncate, the surface thickly and rather coarsely
punctured, the punctures deeper and transversely confluent towards the lateral margin, the disc with an
interrupted smooth median line ; elytra broad-oval, rather short, moderately convex, very much wider than
the prothorax, abruptly declivous behind, and with the apex slightly produced, the humeri very obtuse,
the epipleural carina not visible from above, each elytron with six rows of rather elongate, almost smooth,
moderately raised elevations, and an almost smooth space along the suture, the interstices transversely
reticulate, and sparsely, rather coarsely granulate, the sutural space with a row of very coarse, distantly
placed impressions, the inflexed portion coarsely punctured, the epipleure abruptly widened at the base ;
beneath shining, the ventral surface with a few, widely scattered, fine punctures ; prosternum declivous
behind ; anterior tarsi with silky hairs beneath ; anterior tibial spurs subequal.

Length 153, breadth 7? millim. (@ ?)

Hab. Mexico, San Juan Tumbio (fVohr).

Mr. Flohr informs me that he captured three examples of this peculiar species in
June 1883—two at San Juan Tumbio (from one of which the above description is taken)
and one at Tingambato, Michoacan ; they were found beneath rubbish.

Elzodes goryi (p. 98).

To the Mexican localities given, add :— Nuevo Laredo in Tamaulipas (Hége).

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 3XxX

518 SUPPLEMENT.

50 (a). Eleodes subnitens.
Eleodes subnitens, Lec. Ann. Lye. N. York, v. p. 1841; Horn, Rev. Ten. of Am. north of Mexico,
p. 319.

Hab. Nort America, Gila River 1 2,—Mexico, Northern Sonora (Morrison).

Three examples. Belongs to the same section as E. goryi, Sol. (=seriata, Lec.).

EMBAPHION. (To follow the genus Eleodes, p. 93.)
Embaphion, Say, Journ. Acad. Phil. iii. p. 254 (1824) ; Complete Writings, ii. p. 150; Lacordaire,
Gen. Col. v. p. 152; Horn, Rev. Ten. of Am. north of Mexico, p. 320.

1. Embaphion muricatum.
Akis (?) muricata, Say, Journ. Acad. Phil. iii. p. 258 (1824) *; Complete Writings, 11. p. 149°.
Embaphion muricatum, Horn, Rev. Ten. of Am. north of Mexico, p. 320%.
Embaphion concavum, Lec. Proc. Acad. Phil. vi. p. 4464; Thoms. Arcana Nature, t. 18. fig. 10°.
Hab. Nortu AMERICA, Kansas to Texas °, Texas 4-—Mexico, Nuevo Laredo in Tamau-
lipas (£Hége).

Sent in abundance by Herr Hoge, from just within our northern frontier.

ARGOPORIS (p. 93).

1. Argoporis alutacea.

Argoporis bicolor (Horn), huj. op. p. 94, Tab. V. fig. 1 (nee Lec.).
Argoporis alutacea, Casey, Ann. N. York Acad. v. pp. 405, 406, t. 4. fig. 11 (¢) (Nov. 1890),

Argoporis rufipes (p. 94). |
Argoporis nitida, Casey, Ann. N. York Acad. v. pp. 405, 406, t. 4. fig. 12 (g) (Nov. 1890)’.
To the localities given, add :—Norru America, Texas 1—MeExico, Paso del Norte,
Chihuahua city, Santa Clara in Chihuahua, Villa Lerdo in Durango, Durango city
(Hoge).

Sent in plenty by Herr Hoge from the above Mexican localities. Varies in colour,
in the intensity of the punctuation of the head, and in the depth and size of the punc-
tures of the elytral series, also in having the elytral interstices slightly convex in some
specimens. ‘The head usually has the punctures finer on the anterior part: in the
specimens from Paso del Norte (A. nitida, Casey) they are denser than in the type of
A. rufipes, while in some of those from Durango city they are very fine, sparse, and
uniform. In one male from Durango city the posterior femoral teeth are almost
obsolete ; the first ventral segment, as noted by Capt. Casey, is tuberculate in the
middle in this sex. A. ntida was described from a single male example.

HETEROMERA. 519

Argoporis atripes (p. 95).
To the Mexican localities given, add:—Villa Lerdo in Durango, Aguas Calientes city,
Lagos, Sayula in Jalisco (Hége).

Sent in abundance from Aguas Calientes.

Argoporis cavifrons (p. 95).
To the Mexican localities given, add :—Mazatlan ({6ge).

Argoporis costipennis (p. 96).
Argoporis costipennis (Lec.), Casey, Ann. N. York Acad. v. p. 405, t. 4. fig. 10 (¢) (Nov. 1890).
To the localities given, add :—Muxico, Northern Sonora (Morrison).

8. Argoporis unicalcarata.

Moderately convex, black or pitchy-black, slightly shining. Head rather short, bread, strongly reflexed at the
sides in front, thickly and very irregularly punctured, the punctures on the epistoma fine, the others
moderately coarse ; antenne stout, rather short ; prothorax as long as broad, convex, rounded at the sides
anteriorly and gradually narrowing behind, widest before the middle, the base and apex about equal in
width, the angles obtuse, the base broadly, feebly emarginate, the surface very minutely, closely, uniformly
punctured ; elytra elongate-oval, with rows of moderately coarse, not very closely placed punctures, the
interstices very minutely, somewhat closely punctate, flat, the first, third, and seventh very strongly and
abruptly carinate near the apex (the first and seventh projecting beyond the apex of the elytra when the
insect is viewed from above), the humeridentiform, very prominent ; beneath longitudinally wrinkled and
with some scattered punctures; legs pitchy-red; prosternum decliyous behind the cox, strongly produced,
the apex vertical.

g. Anterior femora sharply carinate on the inner side towards the base; anterior tibie curved, denticulate
within ; posterior femora incrassate beyond the middle and armed with a single long, stout, blunt tooth;
first ventral segment with a rounded, flattened tubercle in the middle.

Length 12-13 millim. (¢ 9.)

Hab. Mexico, Villa Lerdo in Durango, Aguas Calientes city (Hoge).

Three males and two females. This species resembles A. costipennis in its male
characters. ‘The elytra, viewed from above, appear to be quadri-tuberculate at the
apex.

9. Argoporis tridentata.

Moderately convex, black or pitchy-castaneous, slightly shining. Head coarsely punctured between and behind
the eyes, the anterior portion very minutely punctate, the sides strongly reflexed ; antenne stout, rather
short; prothorax convex, as long as broad, widest at one-third from the apex, the sides rounded anteriorly,
gradually converging and slightly sinuate behind, the base feebly emarginate and sometimes narrower than

_ the apex, the anterior angles obtuse, the hind angles distinct, the surface exceedingly minutely, somewhat
thickly, uniformly punctate; elytra elongate-oval, with rows of coarse, deep, rather distantly-placed
punctures, the interstices sparsely, exceedingly minutely punctate, flat or very feebly convex, the first,
third, and seventh feebly costate at the apex, the humeri dentiform, very prominent; beneath longitudi-
nally wrinkled ; legs black or pitchy-red ; prosternum declivous behind, produced, the apex vertical.

¢. Anterior femora with a short subangular carina on the inner side near the base; anterior tibiee curved,
denticulate within ; intermediate femora obsoletely denticulate in the middle; posterior femora incrassate

3 XX 2

520 SUPPLEMENT.

beyond the middle and armed with three long, rather slender, equidistant teeth ; first ventral segment
transversely tuberculate in the middle and rather deeply depressed in the centre at the apex, the second
segment broadly depressed along the middle. .

Length 113-134 millim. (¢ Q.)

Hab. Mexico, Zapotlan in Colima, Chilpancingo in Guerrero ({6ge).

A male from Zapotlan and five females from Chilpancingo. This species is allied to
A. rufipes, but differs from it in the head being coarsely punctured between the eyes,
the elytra more narrowed anteriorly, and the legs darker, the hind femora of the male
with three long, subequal teeth. The punctuation of the thorax and of the elytral
interstices is only visible under a strong lens.

10. Argoporis levicollis.

Feebly convex, flattened above, varying in colour from pitchy-black to rufo-castaneous, slightly shining. Head
minutely or very finely punctured, the punctures near the eyes distinctly coarser, the sides strongly
reflexed ; antennz stout, short; prothorax as long as broad, feebly convex, widest a little before the
middle, slightly narrowed behind, the angles obtuse, the base feebly emarginate, the surface smooth or
almost imperceptibly punctate; elytra elongate-oval, flattened on the disc, with rows of moderately coarse,
not very closely placed, shallow punctures, the interstices flat throughout and almost smooth, the humeri
dentiform ; beneath longitudinally wrinkled and with minute scattered punctures; legs pitchy-red; pro-
sternum declivous behind, produced, the apex vertical.

3g. Anterior femora feebly carinate on the inner side near the base; anterior tibise curved, denticulate within ;
intermediate femora finely denticulate on their inner edge; posterior femora moderately incrassate beyond
the middle and armed with four or five very short, blunt teeth, the inner one slightly stouter than the
others ; first ventral segment with a rounded, flattened tubercle in the middle and depressed in the centre
at the apex, the second segment broadly depressed along the middle.

Length 10-14 milim. (¢ @.)

Hab. Mexico, Ventanas in Durango (Hége).

Many specimens of both sexes. This species comes nearest A. cavifrons, but may be
known from it (and from A. atripes &c. also) by having the elytral interstices flat at
the apex and the head very differently sculptured. It is less convex than A. cavifrons,
and the elytra are less abruptly narrowed at the base. From A. atripes it also differs in
its less parallel shape (the elytra being more oval), more finely punctured head, smoother
thorax and elytral interstices, paler legs, and more produced prosternum.

MITYS (p. 97).
This genus, as already stated (anted, p. 261), belongs to the “* Misolampides.”

2. Mitys politus.
Spherotus politus, de Bréme, Rev. Zool. 1842, p. 109".
Mitys levis, huj. op. p. 98.

Originally described! from a specimen from Mexico in Chevrolat’s collection.

HETEROMERA. 521

CENTRONOPUS (p. 99).
3. Centronopus bimaculatus. (Tab. XXIII. fig. 1, 3.)

Elongate, parallel, black with an sneous lustre, very shining; the elytra each with a large, transverse, reddish-

yellow patch a little below the base, extending to the lateral margin but not to the suture. Head closely,
rather coarsely punctured, truncate in front, and slightly depressed between the eyes (2), rugulosely
punctured, broadly and very deeply excavate between the eyes, and with the anterior margin reflexed and
subangularly produced in the middle ( g); antenne extending toa little beyond the base of the prothorax,
slender, thickening outwardly, the penultimate joints about as broad as long, the basal joints more or less
rufous, the others infuscate or black ; prothorax strongly transverse, convex, sharply margined, the sides
rounded anteriorly and slightly converging behind, the base bisinuate and deeply grooved within, the hind
angles acute and prolonged a little backwards, the apex deeply emarginate, the anterior angles obtuse, the
disc transversely depressed in the middle behind and canaliculate in the centre at the apex, the entire
surface very minutely, sparsely, shallowly punctate; elytra about three times as long as, and distinctly
wider than, the prothorax, parallel to beyond the middle, coarsely and deeply punctate-striate, the inter-
stices feebly convex and exceedingly minutely punctate; beneath pitchy-brown, shining, minutely punc-
tured; legs black, the tarsi paler; prosternum declivous behind ; intercoxal process of the abdomen
triangular.

¢. Anterior tibie with a sharp triangular tooth on the inner side at the middle, and the intermediate and hind

tibie: each with a similar, but narrower, tooth towards the apex; all the femora clothed with rather long,
scattered, fine yellow hairs on their inner edge; anterior tibie with a dense brush of golden hairs on the

inner side at the tip.
Length 112-13, breadth 43-43 millim. (d 9.)

Hab. Mexico, Paso de San Juan in Vera Cruz (Hége), Actopan (fide Flohr),

Temax in North Yucatan (Gaumer).

Seven examples, all but one from Yucatan. The male of this species has all the
tibie triangularly toothed within (instead of the anterior pair only, as in the other
members of the genus), and the head very broadly and deeply excavate between the

eyes. In the form of the head &c. it agrees with Centronopus.

PYRES (p. 100).

1. Pyres speciosus.
Centronopus speciosus, Pasc. Ann. & Mag. Nat. Hist. 5th ser. xi. p. 439 (1883).

Pyres metallicus, hu). op. p. 101, Tab. V. fig. 10 (July 1885).

RHINANDRUS (p. 101).

Bhinandrus helopioides (p. 102).
To the Mexican locality given, add :—Tehuantepec (Hoge).

ZOPHOBAS (p. 103).

Zophobas klingelhofferi (p. 103).
Var. Zophobas signatus, hu}. op. p. 104, Tab. V. fig. 13.

To the localities given, add :—GuvaTEMALA, Coban (Conradt); Panama, Chiriqui

(Trotsch).

Two additional specimens ( ¢ ) of the variety signatus have been received ; the latter

529, SUPPLEMENT.

differs from Z. klingelhéfferi in having the red spots on the elytra larger and the thorax
also largely marked with red. The thorax, in the females, varies a little in shape and
in the extent of the crenulation of the lateral margin.

4 (a). Zophobas maculicollis. ,
Zophobas maculicollis, Karsch, Berl. ent. Zeitschr. 1866, p. 196"; Kraatz, ibid, 1880, p. 122 *,

Hab. Panama, Chiriqui (Z7rétsch).—CotomB1a, Bogota ! ?.

We have received a male example of this fine species from Chiriqui.

Zophobas morio (p. 104).
To the localities given, add :—Temax in North Yucatan (Gaumer), Teapa in ‘Tabasco
(H. H. Smith), Tehuantepec (Richardson).

Sent in great numbers by Mr. Gaumer from Yucatan. These specimens vary in the
depth of the emargination of the epistoma in the male—the emargination in some
examples obsoletely toothed within, in others not,—and in the size and proximity of
the punctures of the elytral strie; the surface is usually opaque, in some specimens
slightly shining. Ina single male from Tampico, Mexico (fichardson), perhaps speci-
fically distinct, the epistoma is deeply emarginate and feebly triangularly toothed within,
and the striz of the elytra are only distinct at the apex. Z. rugipes, Kr., and Z. opacus
(Sahlb.) are probably nothing but varieties of Z. morio.

Zophobas laticollis (p. 105).
Zophobas laticollis, Motsch. Bull. Mose. xlv. 2. pp. 85, 36 (1872) °.
Zophobas laticollis, buj. op. p. 105, Tab. V. fig. 14 (Kraatz, 1880).

To the localities given, add :—British Honpuras, Cayo (blancaneauxr).—Amazons |.

ALOBATES. (To follow the genus Zophobas, p. 106.)

Alobates, Motschulsky, Bull. Mosc. xlv. 2. p. 25 (1872) ; C. O. Waterhouse, Ann. & Mag. Nat.
Hist. 4th ser. xvii. p. 288.

1. Alobates pennsylvanicus.
Tenebrio pensylvanicus, Deg. Mém. v. p. 52, t. 18. fig. 10 (1775); Knoch, Neue. Beitr. i,
p. 167°.
Nyctobates pensylvanica, Horn, Rev. Ten. of Am. north of Mexico, p. 833 °.
Alobates pensylvanica, Motsch. Bull. Mosc. xlv. 2. p. 25%.
Upis chrysops, Herbst, Kiifer, vil. p. 236, t. 110. fig. 4°.
Tenebrio sublevis, Beauv. Ins. Afr. et Am. p. 163, t. 31. fig. 4°.
Nyctobates inermis, Mann. Bull. Mose. xliii. 2. p. 284".
Hab. Norta America !~‘’, Northern and Middle States westward to California ?.—
Mexico, Nuevo Laredo in Tamaulipas (Hége).

This abundant North-American insect extends southwards to just within our limits,

or
we)
eM)

HETEROMERA.

TAUROCERAS (p. 106).

Tauroceras angulatum (p. 106).
To the localities given, add :—Mexico, Tapachula in Chiapas (Haye).

NUPTIS (p. 107).

Nuptis inquinatus (p. 109).
To the localities given, add :—Mexico, Tapachula in Chiapas (Hoye).

Nuptis caliginosus (p. 109).

To the Mexican localities given, add:—Temax in North fucatan (Gaumer).

Sent in plenty by Mr. Gaumer.

8. Nuptis laticollis.

Black, shining. Head exceedingly minutely, sparsely punctate, the eyes (¢) very large, rather narrowly
separated ; prothorax one-half broader than long, very sharply margined at the sides and in front, the
sides broadly rounded anteriorly, flexuous and feebly converging behind, the base strongly bisinuate and
deeply grooved within on either side of the middle, the hind angles acute, the surface with exceedingly
minute scattered punctures, the apex raised in the middle; elytra elongate, parallel, much wider than the
prothorax, with rows of distantly placed, oblong, coarse punctures, which become much finer towards the
apex and a little finer towards the suture, without trace of strie, the interstices flat, almost imperceptibly
punctate; beneath smooth, shining, the ventral surface very finely, longitudinally wrinkled; prosternum
excavate in front, acutely produced behind; mesosternum horizontal, V-shaped, vertical in front, and
deeply excavate for the reception of the prosternum.

¢@. Anterior femora and anterior tibiz each armed with a sharp tooth on the inner side beyond the middle.

Length 21, breadth 8 millim. (¢.)

Hab. Panama, Chiriqui (77ré¢sch).

One male example. Larger and broader than J. corticalis, the thorax very much
more transverse and acutely margined, the head almost smooth, the eyes very large,
the pro- and mesosternum differently shaped, the anterior femora toothed in the male.
The epistoma is simple in the male, as in WV. validus, N. tenebrosus, and NV. corticalis.

GEATUS (p. 111).

@atus chevrolati (p. 111).
‘Two species were confused by me under this name, and some of the localities quoted

refer to tne following.

2. @atus similis.
Closely resembling @. chevrolati, but with the strix of the elytra finely and closely crenate-punctate

throughout. .
g. The femora shallowly grooved along their lower edge towards the base, the groove filled with fine fulvous

hairs ; the tibiee from the middle to the apex densely clothed with fulvous hairs within, the anterior pair

bowed inwards.

524 SUPPLEMENT.

2. The femora not grooved or hairy on their lower edge towards the base; the tibie in their apical third
sparsely clothed with fulvous hair within, the anterior pair more slender and less curved.
Length 19-23 millim. (¢ 92.)

Hab. Mxxtco, Yolotepec (Flohr), Tapachula in Chiapas (H6ége); Brivish Honpuras,
Belize (coll. F. Bates); Guatemata, El Tumbador, Cerro Zunil, Pantaleon (Champion),
Escuintla (Conradt); Costa Rica (Van Patten).

This insect, of which numerous additional specimens have been received, differs
constantly from @. chevrolati in the fine, uniform punctuation of the elytral striz: in
. chevrolati the punctures become very coarse, deep, and partly confluent towards the
sides. The sexual characters are similar in both species. In Guatemala &. similis
appears to be confined to the Pacific, @. chevrolati to the Atlantic slope. |

HICETAON (p. 111).

Hicetaon frontalis (p. 112).
To the localities given, add :—Muxico, Temax in North Yucatan (Gaumer).

Sent in numbers by Mr. Gaumer. ‘The male characters resemble those of Gatus.

GLYPTOTUS (p. 113).
2. Glyptotus yucatanus.

Black or pitchy-brown, shining. Head sparsely, minutely punctate, the eyes prominent; prothorax transversely
convex, much broader than long, very little wider at the base than at the apex, the sides rounded ante-
riorly, slightly converging and feebly sinuate behind, the base bisinuate and deeply grooved within, the
anterior angles strongly deflexed and obtuse, the hind angles acute, the surface very minutely, shallowly,
sparsely punctate, the disc sometimes with traces of an impressed median line; elytra with regular rows
of not very closely placed, coarse, deep punctures, which become finer towards the apex, the interstices
smooth, flat; beneath almost smooth, the ventral surface finely, longitudinally wrinkled ; prosternum
abruptly declivous behind; legs sparsely punctured, shining.

Length 11-134, breadth 43-53 millim.

Hab. Mexico, 'Temax in North Yucatan (Gauwmer).

Numerous examples. This species has the thorax more rounded at the sides than in
the closely allied G. nitidus and G. cribratus, distinctly narrowed behind, and almost
smooth ; the elytra are punctured almost as coarsely as in G. cribratus, without trace
of striz.

ISICERDES (p. 113).
1(a). Isicerdes vicinus.

Black or pitchy-brown, shining. Head finely and closely punctured, the punctures coarser between the eyes ;
antenns with the basal joints more or less rufous; prothorax transversely convex, much broader than
long, sharply margined, the sides rounded anteriorly and sinuate behind, the anterior angles prominent
but obtuse, the base strongly bisinuate, the hind angles sharp, the surface finely, rather sparsely punctate ;
elytra with regular rows of coarse punctures placed upon almost obsolete Strie, the punctures becoming

HETEROMERA. 525

pee and less approximate towards the sides, and finer towards the apex, the interstices flat or very

eebly convex, almost smooth; beneath shining, almost smooth; prosternum produced behind, received
by the excavate V-shaped mesosternum ; tibiz feebly channelled on their outer edge.

Length 63-8, breadth 3-33 millim.

Hab. Mzxico, Temax in North Yucatan (Gaumer).

Many specimens. Closely allied to Z. occultus, but differing from it in the punctures
of the elytral series being much finer towards the apex; in J. occultus they are very
coarse and deep at the apex, as well as at the sides. The single specimens from
Tuxtla, Belize, and Yzabal, quoted under I. occultus (anted, p. 114), are best placed
here; the one from Tuxtla has the thorax more closely and distinctly punctured
than the others, and all of them have the punctures towards the suture of the elytra
finer than in those from Yucatan.

HESIODUS (p. 115).

Hesiodus sordidus (p. 116).
The Brazilian specimen included by me under this species differs from the Mexican
type in having the punctures of the elytral striae much coarser and less approximate
towards the sides, and the thorax more coarsely and sparsely punctate; I propose to

separate it under the name Hestodus egaensis.

Hesiodus jansoni (p. 116).
To the locality given, add :—Mextico, Temax in North Yucatan (Gaumer).

One specimen.

6. Hesiodus ellipticus.

Oblong-ovate, convex, black with a brassy lustre. Head closely, finely punctate, the eyes transverse ; antennx
with the basal joints rufous; prothorax strongly transverse, trapezoidal, narrowing from the base, the
sides a little rounded in front and feebly sinuate behind, the anterior angles obtuse, the base strongly
bisinuate and not grooved within, the hind angles rather sharp, the surface very finely, sparsely punctate ;
elytra strongly convex, comparatively broad, narrowing from about the middle, with rows of moderately
fine, rather distant punctures placed upon almost obsolete strie, the punctures becoming evanescent
towards the apex and not coarser towards the sides, the interstices flat, exceedingly minutely punctate ;
prosternum produced and received by the V-shaped mesosternum ; tibiz rounded on their outer edge;
first joint of the hind tarsi a little longer than the following two joints united.

Length 63, breadth 2? millim.
Hab. Nicaracva, Chontales (Janson).
One specimen. This species differs from the other members of the genus in having

the thorax trapezoidal, much broader at the base than at the apex, the eyes transverse,
and the sides of the mesosternum sharply raised. In the form of the thorax it

approaches Gonospda.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 3 YY

526 SUPPLEMENT.

CHOASPES (p. 118).
This name is preoccupied in Lepidoptera (Moore, 1881) and I propose to change it
to Choastes.

RHACIUS (p. 120).

Rhacius sulcatulus (p. 121).
Mr. Flohr informs me that he has found specimens of this insect in decaying trunks
of “casahuate” (Ipomea arborescens) at Cuernavaca. We have received additional
examples of it from Yucatan (Gawmer), and from Atlixco, Puebla (Hoge).

BLAPSTINUS (p. 124).

Blapstinus mexicanus (p. 124).

Sent in plenty by Mr. Gaumer from Temax in Northern Yucatan, and singly by
Herr Hége from Villa Lerdo. The male has the anterior tibie thickened, and feebly
sinuate within, less strongly so than in the same sex of B. tibialis.

Blapstinus tibialis (p. 125).
To the localities given, add :—Mexico, Tapachula in Chiapas (Hége).

4, Blapstinus fortis.

Blapstinus fortis, Lec. Proc. Am. Phil. Soc. xvii. p. 420 (1878) ; Casey, Ann. N. York Acad. v.
p. 429.

Blapstinus interstitialis, huj. op. p. 125, Tab. VI. fig. 16.

The specimens referred by me to this species consist of three forms, which may
prove to be distinct :—

(1) Prothorax more or less rounded at the sides behind, the hind angles rather obtuse, the punctuation dense
and moderately coarse (=fortis, Lec.).—Texas, Florida, North, Central, and Eastern Mexico, Guatemala,
Cuba.

(2) Prothorax parallel, or even sinuate, at the sides behind, the hind angles sharp, the punctuation coarser
and sparser.—Central Mexico to Panama.

(3) Larger and more shining, the upper surface with a faint brassy lustre ; the prothorax shaped as in (2),
coarsely but more sparsely punctured.—Tapachula (Hége): three examples.

We are indebted to Capt. Casey for a typical male of B. fortis, Lec., for comparison.

4(a). Blapstinus yucatanus.

Elongate-oval, rather broad, somewhat depressed, pitchy-black, shining, sparsely clothed with long, decumbent,
rather coarse hairs. Head coarsely, densely punctate, the punctures between the eyes still coarser and
longitudinally confluent ; prothorax strongly transverse, moderately convex, widest at one-third from the
pase, very much wider at the base than at the apex, the sides obliquely and rapidly converging from the
middle, rounded and distinctly converging behind, the apex very deeply emarginate, the base strongly
sinuate on either side, the anterior angles sharp and prominent, the hind angles obtuse, the surface
densely, coarsely punctate, the punctures here and there longitudinally confluent, more distinctly so

HETEROMERA. 527

towards the sides ; elytra elongate, subparallel in their basal half, with rows of very coarse, deep, not
very closely placed, foveate punctures, which towards the sides and apex are placed in shallow stria, the
interstices con vex towards the sides and at the apex, almost flat on the disc, thickly, somewhat coarsely
punctate ; beneath shining, very coarsely, rather closely punctate, the flanks of the prothorax coarsely,
longitudinally wrinkled.

Length 7%, breadth 33 millim. (9.)

Hab. Mexico, Temax in North Yucatan (Gawmer).

One example. Allied to B. fortis, Lec., but more shining, the thorax more rounded
at the sides and more coarsely, confluently punctate (in this respect resembling
B. dilatatus), the elytra with series of coarse, deep, foveate punctures. The serial
punctures of the elytra are coarser and deeper than in any other species of th genus
known to me.

Blapstinus errabundus (p. 127).
To the localities given, add:—Mexico, Tehuantepec (Hége), Temax in North
Yucatan (Gaumer).

Sent in numbers from Yucatan.

9. Blapstinus pimalis.
Blapstinus pimalis, Casey, Contrib. Col. N. Am. ii. p. 185 (Jan. 1885) '; Ann. N. York Acad. v,

p. 456°.
Blapstinus umbrosus, huj. op. p. 127 (Oct. 1885).

To the locality given, add :—Norrn America, Arizona !?.

9 (a). Blapstinus pratensis.
Blapstinus pratensis, Lec. Col. of Kansas and Eastern New Mexico, p. 15 (1859)*; Horn, Rev.
Ten. of Am. north of Mex. p. 354°; Casey, Ann. N. York Acad. v. p. 484°.

Hab. Nortu America, Kansas !? 3, Colorado?, Nebraska *, New Mexico ?, Texas? °,
Arizona 2.—Mexico, Nuevo Laredo in Tamaulipas (f/ége).

A single ( ¢ ) specimen from Nuevo Laredo seems to belong to this species.

Blapstinus palmeri (p. 128).
T’o the Mexican localities given, add :—Chihuahua city (Hodge).

Blapstinus substriatus (p. 128).
Blapstinus substriatus, huj. op..p. 128 ; Casey, Ann. N. York Acad. v. p. 144.

Two forms (?) occur of this species :—
(1) The elytral strie very lightly impressed throughout, finely punctured.—Mexico city, Real del Monte,

Guanajuato, Puebla, Toluca, Salazar.
(2) Size larger ; the elytral strie more distinctly impressed, especially towards the sides and apex, and more

coarsely punctured.—Southern United States, Chihuahua, Durango, Coahuila.
3 YY 2

528 SUPPLEMENT.

The specimens from the northern part of our region agree with one from New
Mexico forwarded by Capt. Casey; they are perhaps specifically distinct. Two males
from Salazar, sent with a normal female of the typical form (1) from the same locality,
are only 4 millim. in length; some of the Villa Lerdo specimens of the var. (2)
measure 6 millim.

Blapstinus egenus (p. 129).

To the localities given, add :—Panama, Colon (Casey).

17 (a). Blapstinus angustatus.

Elongate, narrow, subparallel, pitchy-brown, shining, very sparsely clothed with long decumbent hairs. Head
closely, rather coarsely punctate, the eyes large; prothorax transversely subquadrate, longitudinally
convex, scarcely wider at the base than at the apex, the latter very deeply emarginate, the sides feebly
converging in front, parallel from before the middle to the base, the anterior angles sharply produced
and very prominent, the base bisinuate, the hind angles rectangular, the surface rather coarsely, closely
punctate, the punctures sparser on the middle of the disc and separate one from another; elytra elongate,
parallel, a little wider than the prothorax, with rows of coarse, deep, approximate punctures placed in
shallow striz, the strie becoming deeper at the sides and apex, the interstices comparatively coarsely
punctate, flat on the disc, convex towards the sides and apex; beneath coarsely punctured ; anterior tarsi
densely clothed with spongy hairs beneath, and with joints 1-3 rather broadly dilated in the male; wings
fully developed.

Length 53 millim. (¢.)

Hab. Mrxico, Tehuantepec (Hége).

One example. Allied to B. longipennis, but much narrower than that insect; the
thorax very deeply emarginate in front, almost parallel at the sides, moderately
transverse, and with very prominent anterior angles; the elytra with series of coarse,
deep, approximate punctures placed in shallow striz, the interstices rather coarsely
punctate. More parallel and narrower than any of the other species described here.

Blapstinus atratus (p. 131).
To the localities given, add:—Mexico, Chilpancingo (H. H. Smith), Temax in
North Yucatan (Gaumer).

Sent in abundance by Mr. Gaumer.

19 (a). Blapstinus fuscus.
Blapstinus fuscus, Casey, Ann. N. York Acad. v. p. 427 (Nov. 1890) *.

Hab. Nort Amurica, Texas !.—Muxico, Valle del Maiz (Dr. Palmer).

A female specimen of a Blapstinus obtained by Dr. Palmer at Valle del Maiz agrees
very nearly with a male of B. fuscus forwarded to me by Capt. Casey. B. fuscus

resembles B. atratus, but has the anterior tarsi much more strongly dilated in the
male.

HETEROMERA. 529

19 (s). Blapstinus puncticollis.

Elongate, subparallel, rather depressed, very sparsely pubescent, shining black, the front of the head, oral
organs, antenne, and legs ferruginous. Head coarsely, densely punctate, the eyes large ; prothorax strongly
transverse, moderately convex, the sides parallel behind, gradually converging in front, the base bisinuate,
the hind angles rectangular, the apex feebly emarginate (subtruncate if viewed from above), the anterior
angles sharp but not prominent, the surface very coarsely, closely punctate, the punctures a little more
scattered on the middle of the disc ; elytra the width of the prothorax at the base, parallel in their basal
half, moderately elongate, flattened on the disc, with rows of coarsish, approximate punctures placed in
very shallow stric, the interstices flat, feebly convex towards the sides and apex, each with one or two
irregular rows of fine punctures ; beneath black, the flanks of the prothorax and the epipleure obscure
ferruginous ; wings well developed.

Length 53 millim. (¢.)

Hab. Mexico, Amula in Guerrero (H. H. Smith).

This small species, of which we have received only a single abraded example, is
allied to B. atratus, but it is larger and more shining; the antenne and legs are
ferruginous, the head and thorax are much more coarsely punctured, and the eyes are
considerably larger. The punctuation of the thorax is unusually coarse, the punctures
separate one from another.

19 (c). Blapstinus exiguus.

Elongate-oval, black or pitchy-black, slightly shining, sparsely pubescent. Head densely, rather coarsely
punctate, the eyes small; prothorax strongly transverse, moderately convex, very little wider at the-base
than at the apex, the sides rounded at the middle and obliquely converging in front and behind, the base
bisinuate, the hind angles rectangular, the apex feebly emarginate, the anterior angles rather obtuse, the
surface punctured like that of the head, the punctures here and there showing a tendency to become
coalescent; elytra a little wider than the prothorax at the base, moderately elongate, slightly rounded at
the sides in the female, more parallel in the male, with rows of rather fine, approximate punctures placed
in shallow striz, the interstices flat on the disc, feebly convex towards the sides and apex, and each with
one or two irregular rows of fine punctures ; legs piceous ; anterior tarsi scarcely dilated in the male;
wings rudimentary.

Length 4-43 millim. (3 Q.)_

Hab. Mexico, Tehuantepec (Hége).

Numerous examples. This small species approaches J. atratus; it has the thorax
narrowed behind, and very little wider at the base than at the apex.

NOTIBIUS (p. 182).

If we follow Capt. Casey’s revision of the genera of this group (Ann. N. York Acad.
v. p. 499), our two species, V. rugipes and N. affinis, should be transferred to Conibius.

Notibius affinis (p. 132).
To the Mexican locality given, add :—Huitzo in Oaxaca (Hoge).

Three specimens,

530 SUPPLEMENT.

CONIBIUS (p. 133).
Conibius brunnipes (p. 133).

To the localities given, add:—Mexico, Chihuahua city, Villa Lerdo in Durango
(Hoge), Chilpancingo (H. H. Smith), Atlixco (F. D. G.).

2. Conibius troglodytes.

Moderately elongate, broad, convex, very robust, glabrous, subopaque, black, the sides of the head and of the
prothorax, the oral organs, antennee, and legs obscure rufous. Head exceedingly broad, closely, minutely
punctate, the eyes small; prothorax strongly transverse, bisinuate at the base and apex, widest slightly
before the middle, the disc longitudinally convex, the sides broadly, horizontally expanded, a little rounded
anteriorly, and slightly converging behind, the anterior angles broadly rounded, the hind angles very
obtuse, the disc densely, very minutely punctate, the lateral portions more distinctly punctured ; elytra
rather more than twice as long as, and not wider than, the prothorax, subparallel, narrowing a little
anteriorly, finely punctate-striate, the interstices feebly convex and closely, minutely punctate, the humeri
rounded; beneath shining, sparsely, finely punctate; prosternum slightly produced, concave at tip;
intercoxal process of the abdomen comparatively narrow, rounded at the apex; legs exceedingly stout.

é. Ventral surface broadly longitudinally depressed in the middle towards the base, the fifth segment also
depressed in the centre; the anterior tibie merely a little widened.

Length 7, breadth 3} millim. (<¢.)

Hab. Mexico, Cacahuamilpa in Guerrero (Flohr).

This insect, Mr. Flohr informs me, was found under a stone, with ants, at the
entrance of the cave of Cacahuamilpa. C. troglodytes is allied to C. gagates (Horn),
from Arizona, from which it differs in the broadly expanded lateral margins of the
thorax, and in the finely punctate-striate elytra, the interstices of the latter being
slightly convex.

ULUS (p. 133).
3. Ulus comatus.

Elongate-elliptical, convex, piceous or pitchy-brown, shining, thickly clothed with long, coarse, appressed,
whitish or yellowish-cinereous hairs, the prothorax coarsely fimbriate at the sides and base, the elytra
with very long projecting marginal ciliw. Head closely, rather coarsely punctate; prothorax strongly
transverse, bisinuate at the base and deeply emarginate at the apex, the sides rapidly converging from
the base, a little rounded anteriorly, the surface rather sparsely, coarsely punctate, the punctures somewhat
closer at the sides; elytra rather deeply punctate-striate, the punctures moderately coarse and approxi-
mate, the interstices thickly punctured, almost flat; beneath coarsely punctate; anterior tibia broadly
produced at their outer apical angle.

¢. Anterior tarsi very feebly dilated ; fifth ventral segment slightly depressed in the middle at the apex.
Length 53-64 millim. (¢ @.)

Hab. Mexico, Vera Cruz (Flohr).

Four examples, two of each sex, the females considerably larger than the males.
Allied to U. obliquus (Lec.), U. fimbriatus, Casey, and U. hirsutus, Ch., but differing
from these species in the much longer pubescence of the upper surface; the thorax is
more sparsely and more irregularly punctured than in U. obliguus and U. hirsutus.
Found on the sand-hills on the coast, according to Mr. Flohr.

HETEROMERA. 531

TRICHOTON (p. 135).

3. Trichoton sordidum.

Blapstinus sordidus, Lec. Ann. Lyceum N. York, v. p. 146"; Horn, Rev. Ten. of Am. north of
Mexico, p. 352”,

Trichoton sordidum, Casey, Ann. N. York Acad. v. p. 410 °.

Hab. Nortn America, Arizona !23,—Mexico, Northern Sonora (Morrison).

CRYPTICUS (p. 137).
Crypticus ovatus (p. 137).
To the locality given, add :—Mexico, Tehuantepec (Hoge).

Crypticus mexicanus (p. 137).
To the Mexican locality given, add :—Cordova (Hége).

Crypticus maculatus (p. 138).

Mr. Flohr informs me that he captured some specimens of this species at Cuautla,
in the Mexican State of Morelos, in the sand of a river-bed, in Nov. 1883,

DAOCHUS (p. 139).
Daochus mandibularis (p. 140).
To the locality given, add :—GuaTEMALA, Coban (Conradt).

Two examples.

PENETA (p. 141).

1. Peneta obtusicornis.
Peneta obtusicornis, Kirsch, Berl. ent. Zeitschr. 1866, p. 191°.
Peneta panamensis, huj. op. p. 142, Tab. VI. figg. 3, 3 a (1886).

To the locality given, add :—Cotompia, Bogota *.

PHTHORA.
Phtora, Mulsant, Col. Fr., Latig. p. 228 (1854) ; Lacordaire, Gen. Col. v. p. 324.
Phthora, Gemminger & Harold, Cat. Col. vii. p. 1959; Leconte & Horn, Class. Col. N. Am. p. 381
(1883).

Dicedus, huj. op. p. 144 (nec Lec.).

The mutilated (2) insect doubtfully referred by me to Diedus proves, on the
discovery of a second specimen, to belong to Phthora, which has a three- (instead of a
two-) jointed club to the antenne, the two genera otherwise being very similar.

532 SUPPLEMENT.

1. Phthora armata, (Tab. XXIII. figg. 2,¢ ; 2 a, antenna.)

Diedus punctatus ?, huj. op. p. 144 (nec Lec.).

Moderately elongate, subparallel, very convex, castaneous, shining. Head moderately coarsely, rather thickly
punctate, transversely depressed anteriorly, the sides of the front strongly, subangularly raised in the
male; prothorax broader than long, transversely convex, subtruncate at the base and rather feebly
emarginate at the apex, the sides feebly rounded and converging in front, and slightly converging behind,
the lateral carina sharp and a little reflexed, the surface moderately coarsely, closely punctate, the apex
depressed in the middle in the male; elytra twice as long as, and slightly wider than, the prothorax,
parallel in their basal half, deeply striate, the strie with moderately coarse, approximate, crenate
punctures, which become much finer towards the apex, the interstices strongly convex, and with minute
scattered punctures, the humeri angular.

Length 33-33, breadth 13-12 millim. (¢ 9.)

Had. Guatemata, Chilasco and Zapote (Champion).

Two examples. More convex than P. crenata and P. americana, the thorax less
parallel at the sides behind, and with the lateral carina less prominent and not so
strongly reflexed. This insect is exceedingly like Diedus punctatus, except in the

form of the antenne. The sexes differ in the form of the head and thorax.

¥. Phthora elongata.

parallel, moderately convex, pitchy-black, shining; the oral organs and antenne rufous, the legs
Head thickly and rather coarsely punctured, broadly, transversely
the sides parallel from the

Elongate,
pitchy-brown, the tarsi paler.
depressed in front; prothorax a little broader than long, transversely convex,
middle to the base, rounded and slightly converging in front, the base subtruncate, the apex rather feebly

emarginate, the lateral carina moderately prominent, sharp, and narrowly reflexed, the surface rather
coarsely and irregularly punctured, the punctures sparse on the disc, close at the sides; elytra twice as
long as the prothorax, and slightly wider than it, parallel to beyond the middle, deeply striate, the strize
with moderately coarse, approximate, crenate punctures, which become finer towards the apex, the

interstices strongly convex and with minute scattered punctures, the humeri angular.

Length 42, breadth 13 millim.
Hab. Mexico, Las Vigas in Vera Cruz (flohr).

More elongate and less convex than P. armata; the thorax longer, with the punc-

tuation sparser and more irregular on the disc. One example.

ZYPCTES. (To follow the genus Phthora.)

Mentum trapezoidal; last joint of the maxillary palpi oblong, subsecuriform, that of the labial pair oblong-
ovate; ligula entire; mandibles bifid at the apex; labrum prominent; head very broad, large, deeply
sunk into the prothorax, the epistoma truncate and confounded with the front, the sides of the front
rounded and converging, not prominent; eyes entire, rather finely granulated, very small, rounded,
lateral, scarcely visible from above ; genx with asinuous, longitudinal, sharply defined juxta-ocular groove
for the reception of the basal joints of the antenna ; antenne short, joints 1-8 closely articulated—1 and 2
stout, 2 stouter than and nearly as long as 3 and 4 united, 3-8 short, gradually increasing in width, and
becoming more transyerse,—9-11 forming a stout 3-jointed club—9 and 10 very strongly transverse, twice
as wide as 8, 11 rounded at the tip, twice as long as 10; prothorax short, very closely fitting to the base of
the elytra, and at the sides forming a continuous outline with it, the sides sharply margined ; scutellum
minute, transversely triangular; elytra about two and a half times as long as the prothorax, regularly

HETEROMERA. 535

striate from the base nearly to the apex, without scutellar stria ; epipleure broadly extending to the apex ;
prosternum strongly carinate, the carina extending forwards to the anterior margin of the prothorax, and
widened and produced behind the cox, the apex rounded and deeply excavate beneath for the reception
of the convexly raised mesosternum: anterior coxze deeply inserted, transverse, rather distant; inter-
mediate coxe very widely separated, with small trochantin, the cavities almost closed externally ;
metasternum moderately long ; intercoxal process of the abdomen triangular ; legs short, the femora stout
and compressed ; the tibie feebly denticulate on their outer edge at the tip, the anterior pair triangularly
dilated, the two hinder pairs flattened, more slender, the spurs short but distinct; tarsi 5-, 5-, 4-jointed,
slender, simple, clothed with rather long scattered hairs beneath, the first joint of the hind pair as long
as joints 2 and 3 united; body oblong-oval, convex, glabrous, winged.

This genus is proposed for a small species of uncertain affinities. Its glabrous,
compact body and general shape resemble that of some of the smaller and narrower
forms of Histeride. Zypates seems to be best placed in the vicinity of Phthora, in the
Ulomides. ‘The deep groove on either side of the head beneath for the reception of
the basal joints of the antenne, the strongly anteriorly carinate prosternum, very small
eyes (scarcely visible from above), and broad, complete epipleure are its chief
characteristics. The prosternal process resembles that of Hnnebwus, but in that
genus the process is not continued forwards in the form of a carina.

1. Zypetes epieroides. (Tab. XXIII. fige. 3; 3a, labium; 36, maxilla and
maxillary palpus; 3c, antenna.)

Oblong-oval, very shining, varying in colour from pitchy-black to pale testaceous, the legs, oral organs, and
antennse testaceous or rufo-testaceous, the femora sometimes paler. Head very finely, sparsely punctate ;
prothorax strongly transverse, subtruncate at the base, the apex broadly and shallowly emarginate, the
anterior angles declivous and slightly produced, the hind angles rectangular, the sides parallel behind,
feebly rounded and converging in front, the surface sparsely, very finely punctate; elytra each with six
punctured strie, the first stria continued upwards in a straight line to the base, the punctures fine and
approximate, the interstices flat, very sparsely, minutely punctate ; beneath with the lateral portions and
the epipleure finely, sparsely punctate, for the rest smooth.

3? Head broadly and shallowly depressed in the middle anteriorly.

Length 2-2? millim.

Hab. Mexico, Jalapa (Flohr, M. Trujillo); Guaremata, Zapote (Champion); Nica-
RaGuA, Chontales (Janson).

Seven examples. Varies greatly in colour, after the manner of an Hngis, and also in
size, the two specimens from Guatemala being very much smaller than any of the
others. The supposed male is from Chontales. .

ECHOCERUS (p. 145).

3. Echocerus curvicornis.

Reddish-testaceous, shining. Head short, densely, finely punctate in the female, almost smooth in the male;
eyes large, very coarsely faceted, in the female extending laterally far beyond the sides of the front ;
antenne rather stout, joints 5-10 very strongly transverse ; prothorax much broader than long, the sides
parallel behind and a little rounded in front, the apex (viewed from above) truncate, the anterior angles
obtuse, the surface closely, finely punctate; elytra finely punctate-striate, the interstices flat, minutely,
thickly punctate.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 3 ZZ

5034 SUPPLEMENT.

do. The head excavate between the eyes; the sides of the front thickened and slightly dilated, rounded
externally ; the mandibles each with a very long, compressed, rather stout horn curving backwards over
the head, the horns contiguous at their apex.

Length 3-33 millim. (¢ 92.)

Hab. Mexico, Tehuantepec (Hége, 3 ), Temax in North Yucatan (Gaumer, ¢ ).

Three examples. Allied to E. mavillosus, but differing from it in the much larger
and more coarsely faceted eyes in both sexes, the more transverse penultimate joints of
the antenne, the more transverse thorax, the sides of which are more rounded in front,
and in the form of the mandibular horns in the male sex. These horns, instead of
curving inwards as in the same sex of E. masillosus and E. analis, curve backwards
over the head and meet at the apex; they are also longer, stouter, and compressed.
The head in the male has the sides of the front less dilated than in the same sex
of EL. maxillosus.

ICCIUS (p. 147).
Iccius cylindricus (p. 148).

To the locality given, add :—Muexico, Cuernavaca (Hége).

One male example, a little larger than the Guatemalan type.

ALEGORIA (p. 149).

Alegoria sallzi (p. 149).
To the Mexican locality given, add :—Orizaba (Flohr).

Alegoria dilatata (p. 149).
To the localities given, add :—Honpuras, Ruatan I. (Gawmer).

APHANOTUS. (To follow the genus Alphitobius, p. 157.)

Aphanotus, Leconte, Class. Col. N. Am. p. 238 (1862); Horn, Rev. Ten. of Am. north of Mexico,
p. 368.

Two species of this genus are known—one from California, the other from Arizona ;
the latter extends into Northern Mexico.

1. Aphanotus parallelus.
Aphanotus parallelus, Casey, Ann. N. York Acad. v. p. 483 (Nov. 1890) *.

Hab. Norra America, Arizona 1.—Mexico, Zapotlan in Colima (Hoge).

One specimen.

HETEROMERA. 535

DOLIEMA (p. 157).
_ Schedarosus, Reitter, Col. Hefte, xv. p. 42 (1876).

Doliema plana (p. 157).
Schedarosus scidarius, Reitt. Col. Hefte, xv. p. 44.
? Adelina depressa, Er. in Wiegm. Archiv, 1847, i. p. 119.

1(a). Doliema bifurcata.

Reddish-testaceous, shining. Head finely, rather sparsely punctate; antennw very elongate in the male,
shorter in the female; prothorax strongly transverse, considerably narrowed behind, the hind angles
acute, the basal fovese very deep, the surface very finely, sparsely punctate; elytra elongate, parallel, flat,
finely and lightly punctate-striate, the interstices sparsely punctate, the lateral carina sharp and
extending nearly to the apex, the space between this and the marginal carina vertical.

dS. The sides of the front dilated and thickened, and produced anteriorly into a short, broad lobe, which is
emarginate at the apex, the emargination limited internally by an angular projection, and externally by
a long, curved, downwardly-directed tooth; the epistoma extremely short, truncate in front, deeply trans-
versely excavate on either side within.

Length 43-5 millim. (¢ Q.)

Hab. Mexico, Temax in North Yucatan (Gaumer).

Six examples, two of which are males. Larger than D. plana; the lateral processes
on the head of the male much broader and bifurcate in front, and without an additional
tooth beneath. This last-mentioned character will easily separate D. bifurcata from
the same sex of D. plana and D. pallida.

2. Doliema pallida,
Pytho pallida, Say, Journ. Acad. Phil. iii. p. 271 (1824)° ; Complete Writings, 11. p. 160°.
Sitophagus pallidus, Horn, Rev. Ten. of Am. north of Mexico, p. 346°.
Schedarosus cucujiformis, Reitter, Col. Hefte, xv. p. 43°.
Doliema cucujiformis, huj. op. p. 158”.

To the localities given, add :—Nortu America!, Middle and Southern States °.

Dr. Horn has kindly forwarded male specimens of D. pallida and D. plana for
examination. D. cucujiformis, Reitt., is inseparable from D. pallida. The male, as in
the same sex of D. plana, has a small horn beneath the larger one on the head.

2(a). Doliema quadridentata.

g. Reddish-testaceous, shining. Head very broadly and deeply excavate anteriorly, densely, minutely punc-
tate, the sides of the front thickened and strongly subangularly produced anteriorly, the epistoma large
and angularly produced on either side at the apex; antennz elongate; prothorax strongly transverse,
only a little narrowed behind, the hind angles acute, the basal fovese very deep, the surface very finely,
sparsely punctate ; elytra elongate, parallel, flat, finely punctate-striate, the interstices sparsely, minutely
punctate, the lateral carina sharp and extending nearly to the apex, the space between this and the
marginal carina vertical.

Length 53 millim.

Hab. Mexico, Tehuantepec (Hége).
3 ZZ 2

536 SUPPLEMENT.

One example. Larger than D. pallida (=cucujiformis), the head much more finely
punctured ; the thorax less constricted behind, and much more finely and sparsely
punctured; the epistoma of the male much larger and angularly produced on either
side in front (instead of truncate); the lateral processes in this sex stouter and more
prominent, without an additional tooth beneath. Easily distinguishable from our other
species by the quadrituberculate anterior margin of the head in the male sex.

SITOPHAGUS (p. 160).
Sitophagus cynzoides (p. 162).
To the locality Mexico, add:—Ciudad in Durango (Hége), Mexico city, Las Vigas
(fohr).

This species was doubtfully included by me in Sitophagus ; it would be better placed
in Mophis, the head being similarly formed in both sexes. S. cynwovdes closely
resembles I. affinis, but is more elongate and more parallel; the thorax is more
deeply emarginate in front, and the basal fovese are shallower.

ULOSONIA (p. 163).
Ulosonia bi-impressa (p. 165).

To the localities given, add:—Mexico, Tehuantepec, Tapachula (Hége), Temax in
North Yucatan (Gaumer).

METULOSONIA (p. 166).
Metulosonia reflexa (p. 166).

To the localities given, add :—Mexico, Motzorongo in Vera Cruz (Flohr).

MOPHIS (p. 168).

This genus approaches very near Cynewus, but may be known from it by the broader
epipleuree, the more prominent eyes (the sides of the front not extending so far
outwards), and the differently formed antenne.

Mophis affinis (p. 169).
Mophis aterrimus, huj. op. p. 169.

To the localities given, add:—Omilteme in Guerrero (H. H. Smith), Huitzo in
Oaxaca (Hoge).

The locality Las Vigas should be erased.

HETEROMERA. O37

DIAPERIS (p. 174).
Diaperis maculata (p. 174).

To the localities given, add :—Mexico, Misantla (Flohr); Guatema.a, Coban (Conradt).

ARRHENOPLITA (p. 175).
2(a). Arrhenoplita punctatissima.

Elongate, convex, ferruginous, shining. Head large and broad—( ¢) densely, rather coarsely punctured
between and behind the eyes, smoother in front, armed with two long, erect, stout, widely separated
horns, which are placed just within the eyes, the anterior margin reflexed, and triangularly raised on
either side in front, the intraocular space flat—( 2 ) very densely, rugosely punctured, the epistoma a little
smoother ; antenne with the seven outer joints widened, 5-10 very strongly transverse; prothorax short,
strongly transverse, slightly rounded at the sides, and very little wider at the base than at the apex in the
male, gradually narrowing from the base in the female, the surface densely, rather ccarsely punctate ;
elytra moderately elongate, subparallel in their basal half, with rows of coarse punctures placed in almost
obsolete strize, the interstices flat, thickly and coarsely punctate throughout, the humeri obtuse.

Length 44 millim. (¢ 92.)

Hab. Muxico, Acapulco (ége).

One female and two male examples. This species differs from all the allied forms
in the coarsely punctured elytral interstices ; the thorax is similarly, but more densely,
punctate; the cephalic horns of the male are widely separated, long, and erect; the
head in the female is unarmed, and more densely, rugosely punctate than in the
"male,

10 (a). Arrhenoplita occidentalis.

3. Elongate, ferruginous, slightly shining, very finely pubescent. Head moderately large, densely, very finely
punctate, armed with an exceedingly stout, short, compressed horn on either side between the eyes, the
space between them deeply excavated, the anterior margin not reflexed, the epistoma with an indistinct
prominence on either side in front; antenne rather elongate, with the seven outer joints moderately
widened, 5-10 transverse ; prothorax transverse, much wider at the base than at the apex, the sides a
little rounded anteriorly, almost straight behind, the surface densely, very finely punctate; elytra
moderately elongate, parallel in their basal half, deeply punctate-striate, the interstices feebly convex,
closely, minutely punctate, the humeri sharply rectangular.

Length 4 millim.

Hab. Mexico, Acapulco (Hége).

Though we have only received a mutilated example of this species, it is advisable to
name it. A. occidentalis is not very closely allied to any other member of the genus
known to me. The cephalic horns are exceedingly stout, short, and compressed; it is
probable that they vary in length, as in some of the allied species. The punctuation
of the head and thorax is very fine and dense.

538 SUPPLEMENT.

PLATYDEMA (p. 181).

Platydema excavatum (p. 184).

To the localities given, add :—Muxico, Temax in North Yucatan (Gawmer); Hon-
puRAS, Ruatan I. (Gaumer).

Many specimens.

Platydema agile (p. 187).

To the localities given, add :—GuatemaLa, Coban (Conradt).

Platydema subquadratum (p. 188).

To the localities given, add :—-Mxxico, Cuernavaca (Flohr), Temax in North Yucatan
(Gaumer) ; Honpuras, Ruatan I., Bonacca I. (Gaumer).

Sent in abundance from Temax and Ruatan Island.

Platydema ferrugineum (p. 190).

To the localities given, add :—Mexico, Temax in North Yucatan (Gawmer), Tapachula
in Chiapas (Hége).

Platydema rotundatum (p. 191).

To the localities given, add:—Mezxico, Amula and Xucumanatlan in Guerrero
(H. H. Smith), Cuernavaca (Flohr), Temax in North Yucatan (Gaumer).

Platydema diophthalmum (p. 193).

To the localities given, add :—Muexico, Temax in North Yucatan (Gawmer); Hon-
puRAS, Ruatan Island (Gaumer).

Sent in plenty from both localities.

Platydema fasciatum (p. 193).

In my remarks about this species, on p. 194, the head is incorrectly stated to be
‘‘yather coarsely punctured;” this remark applies to P. sudmaculatum, the head in
P. fasciatum being very finely, sparsely punctate.

Platydema submaculatum (p. 194).

To the localities given, add :—Mexico, Temax in North Yucatan (Gawmer).

Platydema hogei (p. 195).
To the Mexican localities given, add :—Omilteme in Guerrero (H. H. Smith).

HETEROMERA. 539

Platydema biplagiatum (p. 201).

To the localities given, add :—Guatemaa, Coban (Conradt).

Platydema cordovense (p. 203).
To the locality given, add :—GuatemaLa, Coban (Conradt).

A single mutilated example from Guatemala seems to belong here. It is larger than
the type, and the elytra have the suture entirely testaceous, and the median discal spot
smaller and more rounded.

46. Platydema concolor.
Platydema unicolor, huj. op. p. 203, Tab. IX. fig. 11 (nec Chevr.).

LIODEMA (p. 205).
Liodema obydense (p. 206).

A specimen of this species, and also one of L. serricorne, has been received from
Temax in North Yucatan (Gauwmer).

HAPSIDA (p. 211).
Hapsida belti (p. 213).

To the localities given, add :—Mzexico, Frontera in Tabasco (Hoge), Temax in North
Yucatan (Gaumer).

This brilliantly-coloured insect has been sent in abundance from Yucatan.

Hapsida terebrans (p. 214).
To the localities given, add :—Muxtco, Teapa in Tabasco (H. H. Smith).

Three specimens, differing from the type in their smaller size and narrower shape,
and in having the elytra eneous, with the serial punctures coarser on the disc.

ENNEBCEUS. (To follow the genus Gonospa, p. 217.)

Ennebeeus, C. O. Waterhouse, Trans. Ent. Soc. Lond. 1878, p. 228.

This genus was proposed by Mr. Waterhouse for a Tasmanian insect, E. ovalis,

Wat. The American species described below are perfectly congeneric with it, one of
them, E. uniformis, being extremely close to E. ovalis. The geographical distribution
of Ennebous is therefore a very remarkable one. The antenne are slender, the apical
articulated club (Mr. Waterhouse describes the ninth and

three joints forming a laxly
the last joint abruptly truncate

tenth joints as forming a distinct but not a large club),

540 SUPPLEMENT.

at the apex. The prosternum is broadly, subhorizontaliy produced behind, the apex
being deeply excavate beneath for the reception of the convex, declivous mesosternum,
the latter having a long, oblique groove on either side. The intermediate coxal
cavities are widely open externally, the trochantin being large and prominent. The
hind coxe are transverse. The intercoxal process of the abdomen is narrow, triangular.
The head in repose is so deeply sunk into the prothorax that the eyes are partly hidden ;
the epistoma is large and separated from the front by a very faintly impressed line.
The tibial spurs are short.

1. Ennebeus uniformis, (Tab. XXIII. figg. 4; 4a, antenna.)

Elliptic, convex, shining, pitchy-black, the head, and sometimes the base, suture, and apex of the elytra
indeterminately, ferruginous ; above and beneath very densely, minutely punctured, and uniformly clothed
with pruinose greyish pubescence. Antenne rufo-testaceous, very slender, the joints 9-11 forming a
narrow club—9 triangular, slightly longer than broad, 10 as broad as long, 11 a little longer than 10;
prothorax strongly transverse, the sides rounded and converging from the base; elytra very closely fitting
to the base of the prothorax, and at the sides forming almost a continuous outline with it, usually with
very indistinct rows of shallow, coarser punctures on the basal half towards the suture; beneath pitchy-
brown, the epipleure more or less ferruginous ; legs rufo-testaceous.

Length 3-32 millim.

Hab. Panama, Volcan de Chiriqui 4000 to 5000 feet (Champion).

Four examples. Extremely close to HL. ovalis, Wat., but more convex and slightly
smaller, the antenne with the apical three joints less widened and more elongate.

2. Ennebeus marmoratus.

Elliptic, convex, shining, pitchy-black, the head rufous, the sides of the prothorax anteriorly, the humeri, and
the apices of the elytra obscure ferruginous, the antenne and legs rufo-testaceous, the femora and tibiz
slightly darker; above and beneath very densely, minutely punctured; the upper surface pruinose-
pubescent, the elytra with irregular dark brown spots which tend to form fasciz. Antenne slender,
joints 9-11 forming a rather broad club—9 triangular, as long as broad, 10 and 11 transverse ;
prothorax moderately transverse, rapidly narrowing from the base; elytra with faint irregular rows of
coarser, not very closely-placed punctures on the basal half towards the suture.

Length 4 millim.

Hab. Mexico, Jalapa and Misantla (Flohr).

A single specimen of this species has been forwarded to us by Mr. Flohr. Larger
and broader than EF. wniformis, the thorax less transverse, the club of the antennee
shorter, the serial punctures on the disc of the elytra a little more distinct, and the
pubescence of the upper surface not uniform in colour, but interrupted by dark brown
spots which tend to form fascie. <A closely allied species occurs in Colombia *.

* Ennebeus seriatus.

Pitchy-black or pitchy-brown, the antenne and legs obscure rufo-testaceous, above and beneath very densely,
minutely punctured ; the pubescence of the upper surface pruinose, that on the elytra yellowish-grey,

HETEROMERA. 541

PHALERIA (p. 217).
Phaleria guatemalensis (p. 218).
To the locality given, add :—Mexico, Mazatlan (Héqe).

Sent in abundance from Mazatlan on the Pacific coast. Mexican specimens differ
from those from Guatemala in having the elytral markings entirely obliterated, or, at
most, represented by a post-median sutural streak and a small discoidal spot.

Phaleria dytiscoides (p. 218).
To the localities given, add :—Mexico, Mazatlan (Hége).

Also sent in abundance from Mazatlan. P. panamensis is perhaps a variety of this
species; but it is duller and comparatively less elongate, the elytra are much more
variable in colour, the thorax is more transverse, a little less narrowed in front, and
usually testaceous, or, at most, with the base infuscate.

Phaleria pilatei (p. 220).

Three specimens of a Phaleria from Vera Cruz (Hoge, Flohr) agree with Chevrolat’s
description of P. pilatei, except that they have not the head ‘inter oculos dense
sulcato, dein arcuatim costato.”

Phaleria insularis (p. 221).
To the Mexican locality given, add :—Mazatlan (Hége).

Many specimens from the Pacific coast, agreeing with those from the adjacent
islands.

BYCREA (p. 221).

Bycrea villosa (p. 222).

To the Mexican localities given, add :—Atlixco in Puebla (F. D. G.), Santo Domingo
Tehuantepec (Richardson).

Found in numbers by Mr. Godman in the nests of Gcodoma cephalotes.

apparently with brown patches ; the elytra with irregular rows of very distinct, rather coarse punctures,
which extend outwards to the lateral margin but not to the apex.
Length 43 millim.
Hab. Cotomsta, Bogota (coll. F. Bates).
Two examples. Readily separable from E. marmoratus by the very distinct irregular series of rather
coarse punctures on the basal two thirds of the elytra, the pubescence on the latter not forming angulated

fasclce.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 4 AA

542 SUPPLEMENT.

SCAPTES (p. 222).

1. Scaptes tropicus.
Asida tropica, Kirsch, Berl. ent. Zeitschr. 1866, p. 190°.
Scaptes sqgamulatus, huj. op. p. 222, Tab. X. figg. 6, 6a, 6 (1886) °.
Ulus squamulatus, Fleut. & Sallé, Ann. Soc. Ent. Fr. 1889, p. 422°.

To the localities given, add :—Cotompia, Bogota!; ANTILLES, Guadaloupe °.

There can be little doubt that the above synonymy is correct, though Kirsch does
not mention the form of the head, antenne, &c., and the insect bears no relation to
Asida. The elytra, as well as the thorax, are fimbriate at the sides. MM. Fleutiaux
and Sallé? sink Scaptes as synonymous with Ulus, Horn, which it resembles in the
shape of the anterior tibie; Scaptes, however, has the head, antenne, thorax, and
prosternum differently formed, and the eyes not entirely divided. It would, perhaps,
be better placed in the Opatrides.

GONIADERA (p. 229).
Goniadera alternata (p. 231).

Mr. Flohr informs me that this insect occurs at Atoyac in the State of Vera Cruz.

ZEMYMONE. (To precede the genus Anedus, p. 233.)
4imymone, F. Bates, Trans. Ent. Soc. Lond. 1868, p. 314 nota.

This generic name * was proposed by Mr. F. Bates for the South-American Gonia-
dera cariosa, Fairm. Aimymone chiefly differs from Anewdus in having the thorax sub-
truncate at the base (without median lobe) and the elytra crenate-striate, and from
Goniadera in having the penultimate joint of the tarsi lamellate beneath. A single
species from Mexico, specimens of which have recently been forwarded to me by
Mr. Flohr, belongs to it. 4. crenata has much the facies of an Adelium.

1. Amymone crenata. (Tab. XXIII. fig. 5.)

Elongate-oval, moderately broad, rather depressed, seneous, shining. Head very coarsely, irregularly punctate,
broadly transversely depressed in front ; the eyes coarsely granulated, widely separated, moderately large ;
antenne pitchy-brown, about reaching the base of the prothorax, joint 3 about three times the length of
2 and a little longer than 4, 4-10 gradually decreasing in length, 10 transverse, 11 much longer and
stouter than 10; prothorax transversely convex, nearly twice as broad as long, a little wider at the base
than at the apex, widest at the middle, the sides rounded anteriorly and strongly constricted behind, the
apex moderately deeply emarginate, the anterior angles rounded, the hind angles rectangular, the base
subtruncate, without distinct lateral sinuation, the surface with scattered, irregularly arranged, coarse
punctures ; elytra much wider than, and about three and a half times as long as, the prothorax, subparallel
towards the base, deeply and moderately coarsely crenate-striate, the interstices feebly convex, smooth ;

* Omitted from the Munich Catalogue.

HETEROMERA. 543

beneath geneous, shining, sparsely, coarsely punctate at the sides only, for the rest almost smooth, the
epipleurte with exceedingly coarse punctures; prosternum narrow, convex, declivous behind, slightly
produced, the apex with a raised point ; mesosternum broadly excavate in front, V-shaped, declivous ;

legs piceous, the tarsi rufo-testaceous ; intermediate and posterior femora and tibie ciliate on the inner
side in the male.

Length 113-18, breadth 5-53 millim. (¢ 2.)
Hab. Mexico, Motzorongo in Vera Cruz (Flohr).

Three examples. An allied undescribed species from Brazil is contained in
Mr. F. Bates’s collection.

ANZEDUS (p. 233).
2(a). Anzedus eneotinctus.

Oblong-oval, moderately broad, depressed, brownish-piceous with a brassy lustre, shining, sparsely clothed
with rather long decumbent hairs, the antenns, oral organs, and legs rufo-testaceous, the femora slightly
infuscate ; the entire upper surface densely, coarsely, confusedly punctate, the punctures on the prothorax
a little coarser than those on the elytra, those on the apical portion of the latter longitudinally confluent.
Head rather small, the eyes not very widely separated, exceedingly coarsely granulated ; antennze mode-
rately stout, only extending to a little beyond the base of the prothorax, joint 3 twice as long as 2 and
shorter than 4, 4-10 subequal, longer than broad; prothorax twice as broad as long, broader at the base
than at the apex, the sides subangularly dilated a little behind the middle, strongly constricted before the
base, and slightly flexuous and rapidly converging anteriorly, the apex deeply emarginate, the anterior
angles prominent but obtuse, the base with a broadly truncated median lobe and deeply sinuate on either
side between this and the acutely rectangular hind angles ; elytra considerably broader than, and nearly
four times as long as, the prothorax; beneath pitchy-castaneous, very coarsely, sparsely punctate, the
venter smooth in the middle; legs comparatively short.

Length 72, breadth 34 millim.

Hab. Mexico, Acapulco (Hége).

One example. Less elongate than A. interstitialis and A. similis; the head smaller,
the eyes less widely separated and more coarsely granulated ; the thorax broader,
deeply emarginate at the apex, and more deeply sinuate on either side at the base;
the antenne and legs much shorter; the under surface coarsely punctured.

2(s). Ansedus villosus. (Tab. XXIII. fig. 6.)

Oblong-oval, broad, depressed, pitchy-black with an neous lustre, shining, somewhat thickly clothed with
long, suberect hairs; the entire upper surface densely, coarsely, confusedly punctate, the punctures on
the prothorax coarser than those on the elytra, those on the apical portion of the latter longitudinally
confluent. Head as in A. eneotinctus, the oral organs rufo-testaceous; antenne stout, extending to a
little beyond the base of the prothorax, piceous, joints 1-3 and the outer half of 11 rufo-testaceous, 3 twice
as long as 2 and shorter than 4, 4-10 subequal in length and slightly increasing in width, 9 and 10 about
as broad as long, 11 very much longer than 10; prothorax twice as broad as long, the sides dilated a
little behind the middle, strongly constricted before the base, and obliquely converging anteriorly, the
apex broadly but not very deeply emarginate, the anterior angles obtuse, the base with a broad, feebly
emarginate median lobe and deeply sinuate on either side between this and the acute, outwardly-directed
hind angles; elytra very little wider than, and barely three and a half times as long as, the prothorax ;
beneath piceous, very coarsely punctate, the venter with widely scattered much finer punctures ; legs
rather short, rufo-testaceous, the femora slightly infuscate.

Length 74, breadth 4 millim.

4AA2

544 SUPPLEMENT.

Hab. GuateMALa, Coban in Vera Paz (Conradt).

One example. Relatively broader than A. eneotinctus ; the thorax nearly as wide as
the elytra, still more coarsely punctate, with more acute hind angles, and the base
feebly emarginate in the middle; the antenne stouter; the pubescence suberect and
longer; the ventral surface more sparsely and more finely punctate. A closely allied
form occurs in Colombia.

Anzdus setulosus (p. 237).
To the localities given, add :—Muxico, Teapa in Tabasco (H. H. Smith).

Two examples of the typical form.

PARATENETUS (p. 238).
Storthephora, Maklin, Act. Soc. Fenn. x. pp. 635, 658 (1875).

As noted on p. 243, several small species of this genus were accidentally overlooked
till it was too late to insert them in their proper place. Amongst these there are three
which have the anterior tibiz unarmed in the male.

Storthephora is referred by Maklin to the Lagriide.

Paratenetus tibialis (p. 239).
To the localities given, add:—Maextco, Acapulco (Hége), Motzorongo (Flohr), Teapa
in Tabasco (H. H. Smith, Hoge).

Sent in abundance from Teapa.

Paratenetus grandicornis (p. 239).

Two examples (¢) of a minute Paratenetus (1§ millim. in length) from Chontales,
Nicaragua (Janson), nearly agree with Motschulsky’s brief description, quoted on p. 239.
They have the club of the antenne piceous and very large (joints 9 and 10 rather
broader than long), the other joints testaceous; the eyes prominent; the thorax finely
denticulate at the sides; the entire upper surface closely, confusedly, moderately
coarsely punctate; the anterior tibie unarmed.

This is the smallest member of the genus known to me.

2(a). Paratenetus nigricornis, (Tab. XXIII. figg. 7,¢; 7 @, antenna.)

Moderately convex, shining, piceous or pitchy-brown, the elytra sometimes entirely, sometimes with the
humeri only, reddish-brown ; the upper surface clothed with short, decumbent hairs, and closely, con-
fusedly, moderately coarsely punctate, the punctures on the prothorax a little finer than those on the
elytra. Antenne black, the basal joints sometimes pitchy-testaceous—( ¢) elongate, with joints 9-11
forming an elongate, exceedingly stout club, 8 and 9 about as broad as long, 11 considerably longer than
10, (¢) shorter, with shorter and much more slender club, joints 8 and 9 strongly transverse ; prothorax

HETEROMERA. 549

convex, rather narrow, moderately transverse, about equal in width at the base and apex, the sides a
little rounded and finely denticulate ; legs varying in colour from piceous (with the tarsi paler) to entirely

testaceous ; anterior tibia unarmed in both sexes.
Length 23-23 millim. (¢ 9.)
Hab. Mexico, Motzorongo (Flohr), Teapa in Tabasco (H. H. Smith); Britis Hoy-

DuRAS, Belize (Blancaneaux); Guatemata, San Juan, Chiacam, Cahabon, and Tamahu
in Vera Paz (Champion).

Many specimens, all from the Atlantic slope. A little larger than P. grandicornis ;
the antenne almost or entirely black, with a longer and much stouter club in the male;
the head and thorax, at least, piceous. The elytra are usually piceous or pitchy-brown,
with the shoulders reddish-brown. One of the two specimens from Belize (a female)
has the thorax and elytra more coarsely punctate, and it may belong to another species.
Compared with the allied forms, P. nigricornis has an unusually narrow convex thorax.

2(p). Paratenetus inermis,

Reddish- or fusco-testaceous ; the upper surface coarsely, densely, confusedly punctate, clothed with long, fine,
decumbent hairs. Antenne rufo-testaceous, with the club pitchy-brown or pitchy-testaceous, the latter
long and stout in the male, with joints 9 and 10 almost as long as broad, shorter and very much smaller,
and with joints 9 and 10 transverse, in the female; prothorax strongly transverse, moderately convex,
about equal in width at the base and apex, the sides feebly rounded, finely denticulate, and slightly con-
verging behind ; legs rufo-testaceous ; anterior tibia unarmed in both sexes.

Length 23-25 millim. (¢ 2.)

Hab. GuatemaLa, El Tumbador, Zapote, Capetillo, Calderas, Guatemala city

(Champion).

In the unarmed anterior tibiz in the male this species resembles P. nigricornis and
P. tropicalis; it differs from the latter in the much longer and stouter club te the
male antenna, and is also a little larger and more robust, the thorax is more trans-
verse, and the punctuation of the upper surface is coarser. P. nigricornis has the
antenne almost entirely black, the club still larger in the male, and the thorax narrower
and more convex.

The description is chiefly taken from two male specimens, the females being some-
what doubtfully referred to the same species.

5. Paratenetus punctulatus.
Paratenetus punctatus, huj. op. p. 241 (nec Spin.).

Moderately convex, shining, testaceous or pitchy-testaceous, the head and prothorax usually darker, or of a
more rufous colour, than the elytra; the upper surface thickly clothed with long, semi-erect hairs, densely,
coarsely, confusedly punctured, the punctures on the head and prothorax very dense and partly confluent.
Antenne testaceous, with the club piceous or infuscate, the latter similarly formed in both sexes, mode-
rately stout, joints 9 and 10 transverse ; prothorax transverse, convex, the sides a little rounded and
coarsely denticulate, the hind angles acute ; elytra with scattered, feeble, tubercular elevations towards
the sides and apex ; legs testaceous, the femora and tibie sometimes a little darker.

546 SUPPLEMENT.

3. Anterior tibie with a sharp tooth before the middle beneath ; the intermediate tibie sinuous within and
slightly curved, their inner apical angle somewhat produced.
Length 3-34 millim. (¢ 9.)
Hab. Mexico, Motzorongo (Flohr), Jalapa, Teapa in Tabasco (Hége), Frontera in
Tabasco (H. H. Smith); British Honpuras, R. Sarstoon (Blancaneauz).

Nine examples. This insect, of which we have received several additional specimens,
was somewhat doubtfully referred by me to P. punctatus, Spin. It differs from that
species in the much finer punctuation of the upper surface (the sculpture in P. punc-
tatus being unusually coarse), and in the elytra having scattered, very feeble tubercular
elevations towards the sides and apex *. These elevations are not easily discernible
when the pubescence is dirty or matted.

5 (a). Paratenetus constrictus. (Tab. XXIII. figg. 8, ¢; 8a, antenna.)

Convex, shining, ferruginous or flavo-ferruginous ; the upper surface somewhat thickly clothed with long, semi-
erect hairs, moderately coarsely, rather densely, confusedly punctate, the punctures becoming coarser
towards the base of the elytra. Antenne rufo-testaceous, with the club piceous (the apical joint somewhat
paler), the latter moderately stout, almost similarly formed in the two sexes, with joints 9 and 10 trans-
verse; prothorax transverse, convex, rounded at the sides anteriorly, and a little narrowed behind, the
sides moderately coarsely denticulate, the hind angles acute; legs rufo-testaceous ; anterior tibie armed
with a short tooth on the lower side at the middle in the male.

Length 24-3} millim. (¢ 9.) . .

Hab. Mexico, Atoyac (Flohr), Jalapa, Frontera in Tabasco, Tapachula in Chiapas

(Hége), Teapa in Tabasco (H. H. Smith); British Honpuras, R. Hondo (Blancaneaua) ;

GuateMALA, Chacoj and San Juan in Vera Paz, El Tumbador (Champion); Panama,

Volcan de Chiriqui (Champion).

This is a common insect on the Atlantic slope, and it has been sent in abundance
from Teapa; from the Pacific side very few specimens have been received. Allied to
P. punctulatus, but smaller and more convex, the punctuation of the upper surface
less dense, especially on the head and thorax, and becoming coarser towards the base
of the elytra; the thorax a little narrowed behind, and less coarsely denticulate; the
elytra without scattered feeble elevations towards the sides and apex. The antenne
sometimes have the club a little paler in colour. ‘The elytral punctuation is slightly
variable, but it usually becomes much finer towards the apex.

P. cribratus, Motsch., from Georgia, and P. denticollis (Makl.), from Venezuela, are
allied forms; the latter has the antenne pallid testaceous, and appears to have a more
transverse, more rugosely punctured thorax.

11(a). Paratenetus sexdentatus. (Tab. XXIII. fig. 9, ¢.)

Rufo-testaceous, the upper surface densely, confusedly, rather finely punctate, clothed with fine, decumbent
hairs, Antenne rufo-testaceous, the club slightly darker, the latter moderately stout, very similarly

* P. ruficornis has the elytra somewhat similarly sculptured, though not noticed in the description.

HETEROMERA. 547

formed in both sexes, with joints 9 and 10 transverse ; prothorax transverse, the sides a little rounded,
and armed at the apex with a long, outwardly projecting, obtuse tooth (forming the anterior angle),
between which and the base are five short teeth (the posterior one forming the hind angle); legs rufo-
testaceous ; anterior tibie with a distinct tooth about the middle beneath in the male.
Length 23-24 millim. (¢ 9.)
Hab. British Hoypuras, R. Hondo (Blancaneaur) ; Guatemaua, Cubilguitz (Cham-

pion).

Four examples. Closely allied to P. (Storthephora) auritus, Makl., from Brazil, and
P. denticulatus, Ch., from Chiriqui; it differs from the latter in having the anterior
thoracic tooth less oblique, more obtuse at the apex, and more prominent, the
other teeth shorter. The anterior tooth projects outwards to far beyond the eyes, and,
owing to the other teeth being short, it is apparently longer than in P. denticulatus.
The description of Storthephora aurita nearly agrees with P. denticulatus, except that
the smaller thoracic teeth appear to be longer (the ante-apical one being very promi-
nent) in the Chiriqui insect.

Paratenetus tropicalis (p. 243).

To the locality given, add :—Mextco, Motzorongo (Flohr), Jalapa (Hoge), Teapa in
Tabasco ([ége, H. H. Smith); British Honvuras, Belize (Blancaneaux) ; GUATEMALA,
near the city (Champion, Salvin), Duefias, Zapote (Champion); Panama, Taboga I.
(Champion).

Numerous specimens of a small Paratenetus from the above localities are perhaps
referable to P. tropicalis, Motschulsky. They agree with his few words of description,
but differ greatly from his figure (t. 3. fig. 7), which represents a very different insect *.
These specimens resemble P. denticulatus and P. sexdentatus in size and sculpture,
and in the rather small club to the antenne, but they have the thorax very finely
denticulate at the sides and without prominent tooth at the anterior angle. The
antenne are considerably longer in the male than in the female, with the club not very
stout; the latter varies in colour from entirely ferruginous to pitchy-brown, sometimes
pitchy-brown with the apical joint testaceous, and joints 9 and 10 are more transverse
in the female than in the male. ‘The anterior tibize in the male are unarmed.

ACROPTERON (p. 252).

Acropteron agriloides (p. 255).
To the localities given, add :—Mexico, Omilteme in Guerrero, Teapa in ‘Tabasco
(H. H. Smith), Tapachula in Chiapas (Hoge).

* This figure (7) is, perhaps, intended for Terametus capicola, Motsch. As regards the antenne, the figure
(76) agrees with the male of our insect. In several other cases the figures quoted by the author in the text

do not agree with the plate.

548 SUPPLEMENT.

ISCHYOMIUS (p. 258).

This genus, for which I have proposed the group Ischyomiides, as already noted
(Col. iv. pt. 2, p. 15), would be better placed in the Melandryide.

OXIDATES (p. 263).
Oxidates princeps (p. 265).
To the Mexican locality given, add :—Jalapa (Hoge).

Four specimens, including both sexes.

8. Oxidates gibbus, (Tab. XXIII. fig. 10.)

Short, black, slightly shining. Head very finely, rather sparsely punctate, coarsely and confiuently so between
the eyes ; antennz comparatively short, extending very little beyond the base of the prothorax, thickened
towards the apex, the apical joint very stout, oval; prothorax transversely convex, short, more than one-
half broader than long, about equal in width at the base and apex, the sides with a very prominent,
reflexed marginal carina, broadly rounded anteriorly, and abruptly constricted immediately before the
hase, the base very deeply grooved within, the hind angles obtusely rectangular, the surface very finely,
somewhat closely punctate; elytra strongly gibbous, short, abruptly declivous from the middle, with
irregular rows of exceedingly large and deep, partly confluent impressions ; beneath shining, almost
smooth; prosternum deeply excavate along the middle, slightly declivous and strongly produced behind,

the apex convexly raised ; mesosternum feebly excavate in front; legs black.
Length 6, breadth 33 millim.

Hab. Mexico, Misantla (Fohr).

One specimen. Smaller and shorter than any of the other known members of the
genus ; the thorax strongly transverse and with the sides very sharply margined; the
antennz comparatively short; the elytra with exceedingly large and deep, partly con-
fluent excavations; the prosternal process convexly raised at the apex.

9. Oxidates elongatus.

S. Elongate, dull black. Head smooth; antennew elongate, slender, the third joint longer than the fourth ;
prothorax transversely convex, a little broader than long, the sides rounded anteriorly and slightly con-
verging behind, the lateral carina not prominent and (except towards the apex) scarcely visible from
above, the hind angles obtusely rectangular, the base towards the sides deeply transversely grooved
within and with a shallow marginal groove, the surface smooth towards the sides, the middle of the disc
exceedingly minutely, closely punctate ; elytra oval, more than twice as long as the prothorax, trans-
versely convex, abruptly declivous behind, with rows of moderately coarse, distantly placed, foveate
impressions, which become deeper towards the sides behind, the interstices smooth; beneath smooth,
shining ; prosternum deeply suleate on either side between the coxe, abruptly declivous and produced
behind, the apex strongly raised ; first ventral segment deeply transversely depressed in the middle at the

base ; the tibie bowed inwards and slightly sinuous, the hind pair strongly so, the latter with about the
apical fourth densely pubescent within.
Length 164, breadth 74 millim.

Hab. Mexico, Mochitlan in Guerrero (Baron).

One specimen. ‘This species connects Mitys with Oxidates, the present insect having

HETEROMERA. 549

the general shape of the former and the elytral sculpture of the latter. For the
present, however, Oxidates can be retained for those species with foveolate elytra. In
the form of the prosternum it approaches 0. gibbus.

HEGEMONA (p. 267).
Hegemona retrodentatus (p. 270).
To the Mexican locality given, add :—Talea and Yolotepec, both in Oaxaca (Flohr).

Two male specimens, agreeing well with Allard’s description. These differ from the
same sex of the closely allied H. bicaudatus in their broader, more robust shape, and
in the subangularly produced and slightly divergent apices of theelytra. It is probable
that the apices of the elytra, as in H. hondurensis, are similarly formed in both sexes.
Of H. bicaudatus an additional male example has been received from Coban (Conradt).

5 (a). Hegemona refulgens.

Elongate, somewhat compressed, the head and prothorax dark bronze, rather dull, slightly tinged with cupreous
towards the sides; the elytra shining, bronzy-cupreous or cupreous, with the bottom of each of the
grooves (more distinctly so when viewed laterally) more or less metallic green; beneath very shining,
geneous, with coppery and metallic green reflections. Head almost smooth; antenne very elongate and
slender; prothorax transversely convex, broader than long, subquadrate, the sides slightly converging in
front and behind, the anterior angles rounded but rather prominent, the hind angles very obtuse, the
surface smooth at the sides, very minutely, somewhat thickly punctate on the middle of the disc; elytra
elongate-oval, slightly compressed at the sides, moderately gibbous, and produced at the apex, very deeply
striate, the striae feebly punctured, the interstices considerably raised, very strongly and subangularly so
towards the sides and apex, the fifth more or less elevated at the apex in both sexes (more distinctly so in
the female, but not projecting beyond the apex of the elytra), the apices conjointly rounded; prosternum
strongly produced, the apex raised; beneath almost smooth, the fifth ventral segment slightly depressed
in the middle in the male.

Length 21-25 millim. (¢ @.)

Hab. Guatemata, Coban (Conradt).

One female and three male examples. Allied to H. compressus and H. lineatus, but
differing from both in the strongly, subangularly raised elytral interstices. ‘The thorax
has the anterior and posterior angles very obtuse (as in H/. bicaudatus &c). ‘The elytral
grooves are more or less metallic green at the bottom, this being more distinct when
the insect is viewed from the side.

In the subangularly raised elytral interstices H. refulgens approaches H. filibuster
and H. interruptus; these latter, however, have broader and more gibbous elytra,
with the interstices uneven. Mr. Conradt obtained specimens of five species of
Hegemona at Coban.

Hegemona chiriquensis (p. 273).
To the localities given, add :—-Costa Rica (Mus. Brit.).
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 4 BB

550 SUPPLEMENT.

NAUTES (p. 277).

As I have already stated, the genera Nautes and Tarpela are only provisionally
adopted here. ‘The exotic Helopides require a thorough revision. |

Nautes varians (p. 281).

The antenne of this species are moderately long in the male, shorter in the female,
with the apical three joints flattened and considerably dilated in both sexes—9 and 10

longer than broad in the male, as broad as long in the female. The specimens treated
as a variety should be separated.

6 (a). Nautes stabilis.

Nautes varians, var., huj. op. p. 281.

To the Mexican localities given, add :-—Cuesta de Misantla (flohr).

The chief differences between this insect, of which females only have been received
as yet, and WV. varians have already been noted; it should also be added that the
antenne (2) are much shorter, extending very little beyond the base of the thorax,
and have their ninth and tenth joints transverse; the thorax is not only more coarsely,
but more uniformly punctured (in WV. varians the punctures are more scattered and
finer on the middle of the disc, and here show a tendency to become oblong in shape) .
the elytral interstices are more distinctly punctured, as well as being more convex.

6(s). Nautes alternans.

Short ovate, rather broad, convex, the head and prothorax suffused with cupreous, metallic green, and golden,
the elytra alternately and indeterminately striped with the same colours; the upper surface shining,
glabrous. Head coarsely, densely punctate, the eyes prominent; antenne piceous, becoming testaceous
towards the base, reaching to about the middle of the elytra, very slender at the base, and gradually
thickening outwardly, the joints (1 and 2 excepted) elongate, 9 and 10 elongate-triangular ; prothorax
more than twice as broad as long, strongly bisinuate at the base and rather feebly emarginate at the
apex, the sides moderately rounded and converging from the base, the anterior angles rounded and not
prominent, the hind angles rectangular, the surface closely, finely punctured—the punctures denser and
longitudinally confluent towards the sides, and somewhat oblong in shape, the disc with a narrow space
down the middle impunctate ; elytra a little wider than the prothorax at the base, slightly rounded at
the sides, deeply striate throughout, the strie indistinctly punctured, the interstices strongly convex
towards the sides and apex, feebly so towards the suture anteriorly, smooth ; beneath shining, pitchy-
testaceous, with an sneous lustre, finely, sparsely punctate, the sides of the metasternum with coarser
punctures, the flanks of the prothorax almost smooth; prosternum narrow, subhorizontal, strongly,

acuminately produced, and received by the V-shaped mesosternum, the sides of latter moderately raised ;
legs obscure testaceous, the femora darker.

Length 5, breadth 2% millim. ( 9.)
Hab. GuateMa.a, Zapote (Champion).

One specimen. Allied to WV. varians and WN. incilis, but with the antenne much
more slender; the elytra alternately striped with metallic colours, the interstices more

HETEROMERA. 551

convex, and the striz very faintly punctured ; the thorax with less prominent anterior

angles; the under surface more sparsely, more finely punctate, the flanks of the pro-
thorax almost smooth. |

Nautes striatipennis (p. 283).
To the Mexican locality given, add :—Actopan (Flohr).

12 (a). Nautes tricolor.

¢. Oblong-ovate, moderately convex, very shining, golden-bronze, the head, prothorax, and elytra here and
there suffused with cupreous and metallic green. Head thickly and rather coarsely punctured ; antennx
very elongate, rufo-testaceous, slightly darker at the tip; prothorax nearly twice as broad as long, broadly
and deeply emarginate at the apex, strongly bisinuate at the base, the sides sharply margined, rounded
and converging in front, and sinuate behind, the base very feebly margined, the anterior angles sharp and
prominent, the hind angles acute, the surface coarsely, thickly punctate; elytra a little wider than, and
more than three times the length of, the prothorax, oval, deeply striate throughout, the striz becoming
exceedingly deep towards the sides and apex and with scattered rather fine punctures, which slightly
impinge on the interstices, and become coarser towards the sides, the interstices, except towards the suture
anteriorly, very strongly convex and with minute, widely scattered punctures ; beneath very shining,
eeneous, suffused with metallic green, coarsely, rather sparsely punctate, the punctures on the flanks of
the prothorax very coarse and partly coalescent, the venter also longitudinally wrinkled ; prosternum
coarsely punctured, horizontal, strongly produced, and received by the V-shaped mesosternum, the latter
vertical in front ; legs rufo-testaceous, the femora wneous; anterior tarsi strongly dilated ; hind tibiz
slightly sinuous within.

Length 7 millim.

Hab. Mexico, Chinautla (Flohr).

One specimen. Allied to WN. versicolor, but more parallel, with the head and thorax
much more coarsely punctured, the thorax less narrowed anteriorly, the elytral stric
still more deeply impressed and more coarsely punctured, and the upper surface less
suffused with cupreous.

TARPELA (p. 288).
2(4). Tarpela pulchra. (Tab. XXIII. fig. 12, ¢.)

Oblong-ovate, very convex, more parallel in the male than in the female, the head and prothorax more or less
suffused with cupreous, metallic green, and golden, the elytra alternately striped with the same brilliant
metallic colours, the suture violaceous, the upper surface very shining and glabrous. Head coarsely,
closely punctate, with the punctures on the vertex transverse, broadly transversely depressed in front, the
eyes small and prominent; antennx pitchy-black, moderately long (d ), short (@), very slender at the
base, joints 7 and 8 slightly thickened, elongate-triangular, 9-11 considerably widened—9 nearly as broad
as long, triangular, much wider than 8, 10 shorter and more transverse, 11 bluntly rounded at the tip,
a little longer than 10; prothorax transverse, with the disc strongly longitudinally convex, flatter
towards the sides, the sides slightly sinuate behind the middle, parallel at the base, and rounded and
converging in front, the apex broadly and very deeply emarginate, the base strongly bisinuate, finely
margined, the hind angles sharply rectangular, the anterior angles strongly, subacutely produced, the
entire surface rather thickly punctured, the punctures very deep, coarse, and oblong in shape, the mar-
ginal carina very fine ; elytra short, gibbous, wider than the prothorax, a little rounded at the sides in
the female, more parallel in the male, somewhat compressed before the apex, very deeply striate through-

4 BB 2

552 SUPPLEMENT.

out, the striz with series of oblong, coarse, deep punctures, which become coarser, deeper, and confluent
towards the sides, and much finer and shallower towards the suture, the scutellar stria very deep, the
interstices convex, smooth, the humeri distinct; beneath pitchy-black with an eneous lustre, shining,
coarsely punctured, the flanks of the prothorax with very deep oblong impressions, the ventral surface
sparsely, more finely punctate, and finely longitudinally wrinkled ; the first and second segments flattened,
densely, minutely punctured, and pubescent in the middle in the male ; prosternum narrow, acutely produced
and slightly declivous behind, the mesosternum V-shaped, moderately raised ; metasternum exceedingly
short ; intercoxal process triangular, sharply margined ; legs short, pitchy-black with an eneous lustre,
roughly punctured ; the anterior tarsi with the basal joints moderately dilated in the male.
Length 4-5, breadth 2-23 millim. (¢ 9.)

Hab. Mexico, Atoyac in Vera Cruz (Flohr).

Five examples of this brilliantly-coloured insect have been received. It resembles
T. eximia in colour, but has more gibbous elytra, much smaller eyes, differently shaped
antenne, pro-, and mesosterna, &c. In the form of the antenne it approaches Nautes
antennatus. ‘The species might almost equally well be placed in NMauwtes. This is one
of many interesting forms for the discovery of which we are indebted to Mr. Julius
Flohr.

Tarpela durangoensis (p. 292).

This species, and 7. corpulenta also, would perhaps be better placed in the genus
FHlelops.

8 (a). Tarpela catenulata, (Tab. XXIII. fig. 11, ¢ .)

Moderately elongate, subparallel, dark brownish bronze, or obscure ferruginous with a brassy lustre; the head
and prothorax very sparsely clothed with short, appressed hairs, the elytra with one or two rows of widely
scattered, erect, short, slightly clavate hairs on each interstice. Head coarsely, closely punctate ; antennee
ferruginous with the tip a little darker, moderately long; prothorax strongly transverse, broadly and very
deeply emarginate in front, feebly bisinuate at the base, slightly wider at the base than at the apex, the
sides sinuate towards the base, rounded and converging in front, the lateral margin crenulate towards the
apex, the anterior angles very strongly and somewhat obliquely produced in front, rather obtuse at the tip,
the hind angles acutely rectangular, the surface coarsely, closely punctate, very uneven, the basal foves
deep; elytra moderately elongate, wider than the prothorax, subparallel to beyond the middle, with
regular rows of coarse, deep, oblong impressions, the impressions closely placed and each impinged upon on
either side at the middle by a raised point projecting from the interspaces (the impressions thus appearing
©-shaped), the interspaces each with one or two rows of very widely scattered excessively minute setiferous
punctures, the third, fifth, and seventh more or less raised, the humeri obtuse ; beneath sneous, shining,
very coarsely, closely punctate, the flanks of the prothorax very coarsely, longitudinally strigose; pro-
sternum horizontal, acutely produced, and received by the deeply excavate V-shaped mesosternum, the
latter vertical in front ; anterior tarsi scarcely dilated in the male.

Length 43-83 millim. (¢ 2.)

Hab. Mexico, Temax in North Yucatan (Gaumer).

Sent in plenty by Mr. Gaumer. Differs from 7. browni, T. thoracica, T. costata, &c.,
by the peculiar sculpture of the elytra; and from 7. browni also by the form of the
pro- and mesosterna. ‘The elytra bear scattered, serially arranged, subclavate hairs;
the punctures from which they arise are scarcely visible.

HETEROMERA. 553

Tarpela jalapensis (p. 296).
To the Mexican locality given, add :—Mescala in Guerrero (H. H. Smith).
Five specimens.

19 (a). Tarpela incilis.

3. Oblong-ovate, rather broad, convex, dark bronze, slightly shining, glabrous. Head short and broad,
densely, finely punctured; antenne black, reaching to about the basal third of the elytra, gradually
thickening outwardly, the third joint not more than one-half longer than the fourth; prothorax
moderately convex, broad, short, transversely subquadrate, very feebly margined at the sides, the sides
parallel behind and slightly converging anteriorly, the base bisinuate, the apex broadly and feebly
emarginate, the hind angles sharply rectangular, the anterior angles sharp and rather prominent, the
entire surface very densely, finely punctate, the punctures separate one from another; elytra wider than,
and three times as long as, the prothorax, deeply sulcate throughout, the interstices (except towards the
suture anteriorly) scarcely wider than the sulci, strongly convex, closely, transversely notched on either
side (these notches extending across the sulci), and with a few exceedingly minute punctures, the humeri
obtuse but distinct; beneath greenish-eeneous, closely punctured—the punctures on the metasternum
coarse, those on the venter much finer, the flanks of the prothorax with moderately coarse oblong impres-
sions; the first and second ventral segments densely, finely punctate and pubescent along the middle ;
prosternum coarsely punctured, acutely produced and slightly declivous behind, the mesosternum V-shaped,
feebly excavate, the sides rounded off in front; epipleure abbreviated behind ; legs densely punctured ;
anterior tarsi with the three basal joints moderately dilated.

Length 63, breadth 3 millim.

Hab. Mexico, Plan de Barrancas (Lohr).

One specimen. ‘This species is perhaps best placed near T. torrida, but is not very
closely allied to it. The elytra are deeply sulcate, with the interstices very convex,
scarcely wider than the sulci, and transversely notched on either side. The thorax is
short and very feebly margined, with rather prominent anterior angles.

21 (a). Tarpela flohri.

Modefately elongate, rather convex, subparallel, dark bronze, shining, glabrous. Head densely, moderately
finely punctate ; antenne only reaching to about the basal fourth of the elytra in the male, shorter in the
female, slender, gradually thickening outwardly ; prothorax moderately convex, transverse, very feebly
margined at the sides, more distinctly so in front, about equal in width at the base and apex, widest a
little before the middle, the sides feebly sinuous and converging anteriorly, constricted and strongly
sinuous behind, the base bisinuate, the apex feebly emarginate (subtruncate if viewed from above), the
hind angles acute and directed a little outwards, the anterior angles sharp but not produced in front, the
surface very densely, moderately finely punctate, the basal foves shallow but distinct ; elytra considerably
wider than, and about three times as long as, the prothorax, subparallel in their basal half, slightly trans-
versely flattened immediately below the base, with rows of moderately coarse, oblong, approximate
punctures placed in shallow strie, the strise becoming very deep towards the sides and apex, the inter-
stices convex, flatter on the disc, almost smooth, the humeri very obtuse; beneath shining, eneous,
closely, finely punctate, the punctures on the metasternum coarser, those on the flanks of the prothorax
very shallow, dense, and reticulate; prosternum abruptly declivous behind, the mesosternum very feebly
excavate ; epipleure abbreviated ; legs densely punctured, the tibizw roughly so; anterior tarsi similarly
formed in both sexes, the basal joints narrow.

Length 7-9, breadth 23-4 millim. (cb 2.)

Hab. Mexico, Tlaltizapan (Flohr).

504 SUPPLEMENT.

One pair. This species is allied to 7. socia, but is less elongate and much more
shining; the thorax is more dilated at the sides before the middle, sinuate in front,
and constricted behind; the antenne are very much shorter; the elytral strie are
deeply impressed at the apex, the interstices convex towards the sides and apex. The
basal ventral segments in the male are not more densely punctured and pubescent in
the middle as in some of the allied forms.

Tarpela subparallela (p. 300).
To the locality Mexico, add :—Rancho Alvarez in San Luis Potosi (Flohr).

One male specimen, agreeing with the type.

24(a). Tarpela foveolata.

3g. Elongate, subparallel, moderately convex, brownish-piceous, feebly shining, glabrous. Head densely,
coarsely punctured between the eyes, more finely so in front, the antennary orbits somewhat dilated ;
antenne ferruginous, rather slender, elongate, the third joint exceedingly long; prothorax moderately
convex, subquadrate, very little broader than long, feebly margined, widest at one-third from the apex,
the sides a little rounded anteriorly, and gradually converging from the middle to the base, the base and
apex (viewed from above) truncate, the anterior angles obtuse, the hind angles subrectangular, the surface
very densely and rather coarsely punctured, the basal fove distinct; elytra a little wider than, and about
two and a half times as long as, the prothorax, subparallel to beyond the middle, with regular rows of
very coarse, deep, oblong, closely placed punctures, which become shallower at the apex, the bottom of
each of these punctures with a minute patch of silvery scales, the interstices narrow (scarcely wider than
the punctures), feebly costate towards the sides, flatter on the disc, and with some exceedingly minute
scattered punctures, the humeri obtuse but distinct; beneath obscure reddish-brown, shining, coarsely,
closely punctured, the punctures on the flanks of the prothorax longitudinally confluent; epipleure
abbreviated before the apex; prosternum abruptly declivous behind ; legs elongate, pitchy-brown, closely

- punctured; anterior tarsi very feebly dilated.
Length 10, breadth 4 millim.

Hab. Mexico, Tampico (Flohr).

One specimen. Nearest allied to T. subparallela, but with the thorax wider in front
and more densely punctured, the antenne (¢ ) longer and more slender, with unusually
elongate third joint; the elytra with regular series of very deep, large, oblong, closely
placed impressions, at the bottom of each of which is a minute patch of silvery scales,
the interstices narrow. ‘The third joint of the antenne is exceedingly elongate.

Tarpela cupreo-viridis (p. 302).
To the localities given, add :—Temax in North Yucatan (Gaumer).

81 (a). Tarpela 2
Hab. Mexico, Dos Arroyos in Guerrero (H. H. Smith).
A single specimen of a very distinct species allied to 7. subvittata, too mutilated for

description.

HETEROMERA. 555

Tarpela depressa (p. 306).

This species, described from a single obscurely-coloured (male) example in M. René
Oberthiir’s collection, has been sent in abundance by Mr. Gaumer from Temax in North
Yucatan. It varies greatly in colour—metallic green, bluish-green, or neous, or
brownish piceous with an eneous lustre; the legs, oral organs, and antenne are more
or less ferruginous.

32 (a). Tarpela nigerrima.

Q. Elongate, subparallel, slightly depressed, pitchy-black, very shining, glabrous. Head somewhat thickly,
finely punctate ; antenne pitchy-black, moderately elongate ; prothorax about one-half broader than long,
bisinuate at the base and feebly emarginate at the apex, the sides somewhat expanded and sharply mar-
gined, feebly sinuate behind, and moderately rounded and converging in front, the anterior angles rounded
and not prominent, the hind angles obtusely rectangular, the basal foveee small but distinct, the surface
punctured like that of the head; elytra wider than, and nearly four times as long as, the pro-
thorax, subparallel to beyond the middle, deeply striate, the strie with series of fine, closely placed
punctures, which (like the striz) become finer towards the suture, the interstices strongly convex towards
the sides and apex, feebly so towards the suture, with widely scattered exceedingly minute punctures, the
humeri rounded; beneath piceous, shining, very minutely, exceedingly sparsely punctate, the venter a
little more closely punctured, the flanks of the prothorax finely strigose; prosternum narrow, declivous
and acuminately produced behind ; legs piceous, the tarsi paler ; body winged.

Length 72, breadth 3 millim.

Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith).

One specimen. Closely allied to 7. depressa, from Yucatan, but differing from it in
the upper surface, legs, and antenne being pitchy-black ; the head and thorax uniformly
punctured, the thorax less deeply emarginate in front and relatively narrower; the
elytral strie shallower towards the suture, the inner interstices less convex ; the pro-
sternum declivous and less produced behind; and the flanks of the thorax finely

strigose.

32 (s). Tarpela guerreroensis.

Moderately elongate, subparallel in the male, oblong-ovate in the female, dull blackish-bronze, glabrous. Head
thickly, moderately finely punctate, the punctures oblong in shape; antenne piceous, extending to the
middle of the elytra in the male, shorter in the female ; prothorax about one-half broader than long, a
little wider at the base than at the apex, convex, with the sides flattened and expanded, the base very
feebly bisinuate, the apex (viewed from above) truncate, the sides moderately rounded anteriorly and
sinuate behind, the anterior angles rounded, the hind angles subrectangular, the lateral margins narrowly
reflexed, the surface rather more closely and finely punctured than that of the head, the punctures oblong
in shape, the basal fover obsolete ; elytra wider than, and more than three times as long as, the pro-
thorax, more parallel in the male than in the female, very feebly transversely depressed below the base,
finely striate, the striae with series of oblong, rather closely placed impressions, which become finer towards
the suture and a little coarser and deeper towards the sides, those in the marginal stria exceedingly coarse
and deep, the interstices flat or feebly convex, smooth, the humeri obtuse; beneath piceous, shining, the
metasternum thickly and somewhat coarsely, the ventral segments more finely (the fourth and fifth very
minutely), punctured, the flanks of the prothorax finely strigose; the first and second ventral segments
broadly flattened, pubescent, and densely punctate in the middle in the male; prosternum abruptly
decliyous behind; anterior tarsi with joints 1-3 moderately thickened in the male.

Length 6-62 millim. (¢ 2.)

556 SUPPLEMENT.

Hab. Mexico, Omilteme and Xucumanatlan in Guerrero, 7000-8000 feet (H. H.
Smith).

Two specimens. In the male the elytra are more deeply striate than in the female,
the striw with coarser and deeper oblong impressions, which impinge on the interstices,
the latter appearing to be transversely wrinkled. ‘This small species is not very closely
allied to any of the other Mexican forms known to me. It is of a duller colour than
any of the allied species with strongly margined thorax, the elytra being peculiarly
sculptured.

37 (a). Tarpela teapensis.

$.- Elongate, parallel, rather depressed, very shining, glabrous; the head eneous, the prothorax with the
disc broadly, transversely suffused with metallic green, this colour bordered on all sides with cupreous,
the margins narrowly golden, the elytra bright golden-bronze. Head densely, not very finely punctate ;
antenne pitchy-brown, very elongate ; prothorax transversely convex, about one-half broader than long,
bisinuate at the base and not very deeply emarginate at the apex, the sides sharply margined, sinuate
behind, and converging and moderately rounded in front, the anterior angles rounded and not prominent,
the hind angles rectangular, the basal fovez distinct, the lateral margins somewhat expanded and grooved
Within, the entire surface exceedingly finely, rather sparsely punctate; elytra wider than, and about
three and a half times as long as, the prothorax, flattened on the disc, parallel to beyond the middle, finely
and rather lightly striate throughout, the strie sharply cut, and with series of very fine, oblong, rather
closely placed punctures, which become a little more distinct towards the sides and almost obsolete
towards the suture, the interstices quite flat, very sparsely, minutely punctate, the humeri obtuse; beneath
pitchy-brown, shining, the metasternum with some rather coarse punctures towards the sides, smooth in
the middle, the flanks of the prothorax finely, longitudinally strigose the ventral surface very sparsely,
minutely punctate, the segments 1-3 broadly flattened, pubescent, and closely punctured along the middle ;
prosternum narrowly produced and slightly declivous behind, the apex with a small raised point; legs
pitchy-brown, the anterior tarsi with joints 1-3 moderately dilated.

Length 94, breadth 33 millim.

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One specimen. Allied to 7. silvicola, from the Pacific slope of Guatemala, but
with the elytral striae deeper and more sharply cut, the punctures in them closer and
finer; the elytra are also more elongate, and the thorax is more finely punctured,
the latter transversely banded with metallic green, cupreous, and golden. 7. teapensis
is more elongate than 7. sinuaticollis and T. puncticeps, and also differs in various
particulars from both these species. The elytral striz are fine, very sharply cut, and
indistinctly punctured.

HELOPS (p. 312).

Helops inanis (p. 316).
Helops funebris, huj. op. p. 316.

To the locality Mexico, add :—Amecameca in Morelos (Flohr).

H. funebris was based upon a female example of large size, with the thorax much
shorter than in the specimens described by Allard under the name of Tarpela inanis.

HETEROMERA. — 557.

Helops pueblensis (p. 317).

To the Mexican locality given, add:—Omilteme and Xucumanatlan in Guerrero,
7000 to 8000 feet (H. H. Smith).

Six examples, differing from the type (?) in having the punctures of the elytral
strie coarser, deeper, and a little more scattered. The male has the three basal joints
of the anterior tarsi broadly dilated, and the ventral segments 1-3 broadly flattened,
densely punctured, and pubescent along the middle.

11 (a). Helops enitescens. (Tab. XXIII. fig. 13.)

2. Obovate, strongly convex, dark bronze, very shining, glabrous. Head thickly, finely punctate, the vertex
smoother ; antenne ferruginous, extending nearly to the middle of the elytra; prothorax strongly longi-
tudinally convex, short, finely margined at the sides, the apex (viewed from above) truncate, the base
subtruncate, very feebly sinuate on either side, finely margined, and with rather deep foves, the sides
rounded and moderately converging anteriorly, sinuate behind, the anterior angles strongly declivous,
rounded, the hind angles obtusely rectangular, the surface very finely, shallowly, and somewhat closely
punctured, the middle of the disc smooth and with a smooth central line, the lateral portions depressed
about the middle; scutellum very broad, short ; elytra connate, depressed along the suture behind, short,
very convex, a little rounded at the sides, broadly subtruncate and slightly wider than the adjacent part
of the prothorax at the base, finely striate, the striz becoming deeper towards the base and with series of
fine oblong punctures, the scutellar strie very deep, the interstices flat throughout, almost smooth, the
humeri rather prominent; beneath piceous, almost smooth, the véntral segments 1-3 somewhat closely
punctured in the middle and longitudinally wrinkled ; prosternum rather broad, declivous behind ; meta-
sternum very short.

Length 74, breadth 4 millim.

' Hab. Guaremata, Tepan (Conradt). os

One specimen, from the Los Altos region. This species is allied to the North-
American H. @reus, Germ., but has a much smoother head and thorax, longer
antenne, &c.; it should be placed near H. suavis. H. enitescens has somewhat the
facies of Nautes nitidissimus.

16. Helops rastratus.

@. Elongate, convex, narrow, slightly shining, piceous, the head in front, the oral organs, antenne, and legs
ferruginous. Head large and broad, very densely, somewhat coarsely punctate, the punctures on the
vertex longitudinally confluent ; last joint of the maxillary palpi subtriangular; antenne robust, with
the outer joints slightly compressed, short, scarcely reaching beyond the base of the prothorax ; prothorax
longitudinally convex, about one-fourth broader than long, equal in width at the base and apex, widest
at the middle, the sides moderately rounded, the base truncate, the anterior angles rounded, the hind
angles exceedingly obtuse, the marginal carina not visible from above, the surface punctured like that of
the vertex, the punctures longitudinally confluent and forming strigw ; elytra oblong-oval, a little wider
than, and about three times as long as, the prothorax, rounded at the sides in front, with rows of oblong,
partly confluent, moderately coarse punctures placed in almost obsolete striz, these punctures becoming
finer and shallower towards the sides and apex, the interstices thickly, finely punctate, flat, the third,
fifth, and seventh feebly raised at the apex, the humeri completely effaced ; beneath shining, ferruginous
or obscure ferruginous, sparsely pubescent, closely, coarsely punctate, the flanks of the prothorax very
densely punctured, the punctures separate one from another; prosternum declivous behind; legs stout,
coarsely punctured ; body apterous.

Length 10-102, breadth 33 millim.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 4CC

558 ' SUPPLEMENT,

Hab. Mexico, Paso del Norte in Chihuahua (Hoge).

Two specimens. Allied to the Californian H. rugicollis, Lec., and H. strigicollis,
Hom, but not agreeing with the description of either of these species. In this and
the next two species the apical joint of the maxillary palpi is narrower than usual in
the genus Helops.

17. Helops spissicornis.
©. Elongate, narrow, convex, slightly shining, piceous or brownish-piceous; the oral organs, antenne, and legs
ferruginous. Head very densely, moderately coarsely punctured, the punctures between the eyes here
and there confluent ; last joint of the maxillary palpi narrow, subtriangular ; antenne robust, short,
scarcely reaching beyond the base of the prothorax; prothorax longitudinally convex, nearly as long as
broad, equal in width at the base and apex, widest at the middle, the sides feebly rounded and very
faintly margined, the base truncate, the anterior angles rounded, the hind angles very obtuse, the surface
punctured like that of the head, but with the punctures separate one from another; elytra oblong-oval, a
little wider than, and not quite three times as long as, the prothorax, slightly rounded at the sides and
narrowed at the base, with rows of fine, oblong, partly confluent punctures placed in almost obsolete
striee, the punctures becoming coarser towards the suture anteriorly, the interstices thickly, finely punc-
tate, flat, the third, fifth, and seventh feebly raised at the apex, the humeri distinct ; beneath shining,
obscure ferruginous, sparsely pubescent, very coarsely and rather densely punctured, the punctures on the
flanks of the prothorax very dense, separate one from another; prosternum declivous behind; legs stout,
coarsely punctured; body apterouse
Length 10-11, breadth 33-33 millim.

Hab. Mexico, Villa Lerdo in Durango (/ége).

Two specimens, This species is very similar to H. rastratus, but differs from it in
having the thorax more cylindrical, nearly as long as broad, more distinctly margined
at the sides, and with the punctures separate one from another; the elytra less
rounded at the sides in front, and with distinct humeri; the underside more closely
and more coarsely punctured. The elytra are very similarly sculptured in both
species, of which female specimens only have been received.

18. Helops seriatoporus.

¢@. Elongate, convex, rather narrow, slightly shining, piceous or rufo-piceous; the oral organs, antenne, and
legs obscure ferruginous. Head very densely, coarsely punctate, the punctures separate one from
another ; last joint of the maxillary palpi slender, oblong-ovate, truncate at the tip; antenne moderately
stout, extending to far beyond the base of the prothorax ; prothorax longitudinally convex, about one-
fourth broader than long, almost equal in width at the base and apex, widest at the middle, the sides
without marginal carina (except at the base), feebly rounded, sinuate before the base, the hind angles
rather prominent, the base truncate, the anterior angles obtuse but distinct, the surface punctured like
that of the head, the punctures separate one from another; elytra oblong-elliptic, considerably wider
than, and about three times as long as, the prothorax, with rows of oblong, coarse, deep, approximate
punctures placed upon almost obsolete strie, these punctures sharply cut and nearly uniform in size, the
interstices thickly, finely punctate, flat, the humeri completely effaced; beneath obscure ferruginous,
very coarsely, rather densely punctured, the venter more sparsely punctate, the punctures on the flanks
of the prothorax very dense, separate one from another ; prosternum declivous behind; legs stout, very
coarsely and densely punctured ; body apterous.

Length 9-114, breadth 34-41 millim.

HETEROMERA. 559

Hab. Mexico, Paso del Norte in Chihuahua (Hége).

Three specimens, all females. This species differs from H. rastratus and H. spissi-
corms in having the punctures of the elytral series much coarser, deeper, and more
regular, the thorax almost immarginate at the sides and with prominent hind angles
(sculptured as in H. spissicornis), the antenney much longer, the elytra subelliptic in
shape, the last joint of the maxillary palpi narrower and more ovate. In one specimen
the venter is more sparsely punctured.

MENTES. (To follow the genus Helops, p. 320.)

‘Mentum trapezoidal; last joint of the maxillary palpi oblong, subsecuriform, that of the labial pair very
broad and stout, truncate at the apex; mandibles bifid at the tip; ligula entire; labrum prominent,.
separated from the epistoma by a narrow coriaceous space; head convex, declivous, short, with the
antennary orbits exceedingly narrow, converging, and scarcely projecting beyond the point of insertion of
the antenn ; the epistoma short, truncate in front, scarcely defined posteriorly ; the eyes large, deeply
emarginate, oblique if viewed from above; antennew elongate, joints 1 and 2 very short, 3 much shorter
than 4, 4-11 longer than broad ; prothorax convex, transverse, finely margined at the sides, truncate at
the base and apex, transversely sulcate behind; scutellum transverse, moderately large, rounded behind ;
elytra closely fitting to the prothorax at the base, elongate-oval or fusiform ; epipleure entire, moderately
broad at the base, and gradually narrowing to the apex; anterior coxe strongly exserted, subcontiguous,
the prosternum acutely raised between them behind and with a raised point at the apex; anterior coxal
cavities closed behind; middle coxe narrowly separated, with small trochantin; metasternum elongate ;
intercoxal process of the abdomen rather broad, subtriangular ; third and fourth ventral segments with
coriaceous hind margin; legs elongate, very slender; tarsi clothed with long, fine hairs beneath, the
penultimate joint of all three pairs simple, narrow, the hind pair equalling the tibie in length, their first
joint exceedingly elongate, as long as the other three joints united; tibial spurs distinct; body elongate,

narrow, fusiform, winged.
This genus is proposed for three species from Central America, of which we have

only received four specimens in all, and these females.
Mentes is perhaps best placed at the end of the Group Helopides, of which it may

be considered a degraded form.

1. Mentes ruficollis. (Tab. XXIII. figg. 14,9 ; 14a, maxilla and maxillary
palpus.)

Elongate, fusiform, moderately convex, very opaque, black, the prothorax rufous. Head small, densely and
rather coarsely punctured, shallowly, transversely grooved in front; eyes moderately large, but not pro-
minent, rather finely granulated; antennz black, elongate, joint 2 very short, 3 nearly twice as long as 2,
very much shorter and narrower than 4, 4-11 moderately stout, longer than broad, subequal; prothorax
transverse, much wider at the base than at the apex, the sides converging almost from the base, rounded
anteriorly, the anterior angles declivous and very obtuse, the hind angles acute, the disc with a transverse
groove behind limited on either side by a foveate depression, the entire surface thickly, finely punctate ;
elytra about four and a half times as long as the prothorax, widest at the middle, and narrowing thence
to the apex, thickly, finely punctate, and with indistinct rows of closely placed punctures, the latter
scarcely distinguishable from those of the interstices; beneath shining, piceous, the prothorax and gula
rufo-testaceous, the flanks of the prothorax, the metasternal side-pieces, and the epipleuree coarsely
punctured, the rest of the metasternum and the venter very finely, sparsely punctate; legs piceous, the
anterior femora at the base and the coxe rufo-testaceous.

Length 33-43 millim. (9.)

4CC 2

560 SUPPLEMENT.

Hab. Panama, Volcan de Chiriqui (Champion).

Two examples. The thorax and elytra, when viewed under the microscope, exhibit
a very minute reticulate sculpture of the surface, and each puncture bears a short,
minute, silvery hair. MY. ruficollis differs trom M. fusiformis and M. setipennis in its
opaque upper surface and smaller and more finely granulated eyes, the thorax broader
behind ; it has a very different facies from either of them.

2. Mentes fusiformis. (Tab. XXIII. fig. 15, 2.)

Very elongate, fusiform, rather depressed, brownish-piceous, shining, the elytra with a few (easily abraded)
long, erect hairs towards the sides behind. Head coarsely, thickly punctate, smooth and slightly depressed
in the middle between the eyes, the latter very large, coarsely granulated, and rather narrowly separated ;
antenne moderately elongate, rather slender, pitchy-brown, joint 2 very short, 3 twice as long as 2, 4
fully one-half longer and a little wider than 3, 4-11 equal in length, considerably longer than broad ;
prothorax transverse, the sides slightly sinuate behind, parallel at the base, and rounded anteriorly, the
hind angles sharply rectangular, the anterior angles declivous and very obtuse, the disc transversely de-
pressed behind, the depression deeper in the centre and limited on either side by a deep tovea, the surface
densely, coarsely punctate, more sparsely so on the middle of the disc ; elytra about four and a half times
as long as the prothorax, widest before the middle, and narrowing thence to the apex, sharply margined
at the sides, finely punctate-striate, the stric becoming deeper towards the apex and the punctures closely
placed, the interstices flat on the disc, feebly convex towards the sides and apex, sparsely, very finely
punctate; beneath obscure-castaneous, the flanks of the prothorax and the metasternal side-pieces coarsely
punctate; legs pitchy-brown, the tarsi paler.

Length 6, breadth 2 millim. (@.)

Hab. Guatemata, Duefias (Champion).

One specimen.

3. Mentes setipennis.

Very elongate, fusiform, shining, pitchy-brown, the elytra pale castaneous, the latter with long, erect, scattered
hairs, which are more distinct towards the sides and apex. Head very sparsely, finely punctate, smoother
and rather convex between the eyes, the latter very large, coarsely granulated, and narrowly separated ;
antenne elongate, rather stout, piceous, joints 1 and 2 rufous, 3 slender, nearly twice as long as 2, 4
much stouter than and about twice as long as 3, 4-11 slightly flattened, subequal, longer than broad ;
prothorax convex, not much broader than long, the sides parallel behind and rather obliquely converging
in front, the hind angles rectangular, the anterior angles declivous and very obtuse, the disc transversely
grooved behind, the groove limited on either side by a deep fovea, the surface rather sparsely, moderately
coarsely punctate ; elytra about four and a half times as long as the prothorax, widest before the middle,
and narrowing thence to the apex, with rows of very fine, feebly impressed punctures which become
indistinct towards the apex, the interstices flat throughout, each with an irregular row of very minute
punctures ; beneath obscure rufo-testaceous, very shining, the flanks of the prothorax, the metasternal
side-pieces, and the epipleure at the base very coarsely punctate, for the rest almost smooth ; legs pitchy-
brown, the femora paler.

Length 6, breadth 2 millim. ( 2.)

Hab. Guatemata, Coban (Conradt).

One specimen. Closely allied to WM. fusiformis, but differing from it in the longer
and stouter antenne, the more convex, less transverse, and more finely and less densely
punctured thorax, and in the smoother, non-striate elytra. The erect sete on the
elytra are easily abraded.

HETEROMERA. 561

TALANUS (p. 821).

Dr. Horn has been kind enough to forward specimens of the North-American
‘D. langurinus and T. stenochinus (Lec.) for comparison with the numerous Central-
American species described in this work. . langurinus is exceedingly close to the
small, narrow variety of 7. lecontei, but it has the sides of the thorax almost straight
behind the middle—in 7. lecontei they are always slightly sinuate (this is best seen
when the thorax is viewed from the side, the marginal carina being much more sinuous
towards the base) ; it is possible, however, that 7. Jangurinus may vary in this respect.
TL. stenochinus resembles T. subexaratus, but has a very rugosely punctured head, with
shallow frontal depression, the thorax and elytra more coarsely punctate, the thorax
with very acute outwardly-directed hind angles.

Talanus neotropicalis (p. 322).
To the localities given, add :—Muxico, Cordova (Sallé), Guadalajara (Flohr).

The single (2) specimen sent by Mr. Flohr differs from the others in having the
thorax still more coarsely punctured, and the elytra distinctly striate at the apex ; it is

perhaps specifically distinct.

Talanus zneipennis (p. 327).
To the localities given, add :—Mzexico, Teapa in Tabasco (H. H. Smith).

Five specimens. Apparently occurs in company with 7. lecontei and 7’. subexaratus,
both of which have been sent in plenty by Mr. Smith from the same locality.

PYANISIA (p. 329).
6. Pyanisia levis.

Oblong-ovate, convex, dull black. Head densely, finely punctate ; prothorax strongly, transversely convex,
widest at the middle, the sides rounded, about equally converging in front and behind, and finely
margined, the marginal carina very narrowly reflexed, the base broadly, feebly arcuate in the middle,
very feebly sinuate towards the sides, the hind angles obtuse, the anterior angles declivous, rather sharp,
the surface almost smooth (when viewed under a strong lens exceedingly minute, scattered punctures are
visible) ; elytra convex, a little flattened on the disc, sometimes depressed along the suture (deeply so at
the base in some specimens), almost smooth, or, at most, with very indistinct rows of shallow, minute,
distantly placed punctures, the humeri angularly produced in front; beneath slightly shining, the
ventral segments very finely, sparsely punctate ; prosternum produced and declivous behind, the apex
not raised.

Length 11-15 millim.

Hab. Mexico, Omilteme and Xucumanatlan in Guerrero 7000 to 8000 feet
(H, H. Smith), Mochitlan in Guerrero (Baron).

Sent in abundance from, and apparently peculiar to, Western Mexico. P. levis is
‘a close ally of P. opaca (coarctata), which occurs at the same localities; but differs

562 SUPPLEMENT.

from it in the strongly, transversely convex thorax (in this respect resembling P. fumosa),
the sides of which are more feebly margined (the marginal carina being scarcely visible
from above in some specimens), and in the rows of punctures on the elytra being almost
or entirely obliterated.

PC:ACILESTHUS (p. 335).
10. Peecilesthus cupripennis. (Tab. XXIII. fig. 17.)

Moderately elongate, convex, shining ; the head brilliant metallic green, the prothorax rufo-testaceous, the
scutellum and elytra coppery-violaceous, the legs and under surface (the prothorax excepted) violaceous.
Head smooth, very deeply longitudinally impressed between the eyes, and deeply, transversely grooved
in front, the eyes large; antenne pitchy-brown, violaceous at the base, rather elongate, joints 5-11
flattened, much longer than broad; prothorax transversely convex, short, finely and completely margined
at the sides (the carina not visible from above), strongly so in front, a little narrower at the apex than
at the base, and with a very deep transverse groove behind, the sides feebly rounded, the surface smooth ;
elytra rather elongate, convex, subparallel in their basal half, with rows of closely set, moderately fine
punctures placed in shallow striw, the strizw becoming a little deeper at the apex, the interstices flat,
smooth.

Length 5, breadth 14 millim. (.)

Hab. Panama, Bugaba (Champion).

One specimen. ‘This little species is very dissimilar from any member of the genus
known to me.

STRONGYLIUM (p. 341).
4 (a). Strongylium clavicorne. (Tab. XXIII. figg. 16; 16 a, antenna.)

Moderately elongate, narrow, convex, the head and prothorax greenish-eneous, the scutellum and elytra
black, with a very faint violaceous lustre, the upper surface feebly shining. Head somewhat exserted,
finely and rather sparsely punctured, very deeply, transversely depressed between the eyes, and trans-
versely grooved in front, the eyes large; antenne blackish-violaceous, with joints 4, 5,and 11 testaceous,
short, only reaching to about the base of the prothorax, joints 3—d very slender, 6 triangular, much wider
than 5, 7-11 flattened, greatly widened, and closely articulated, forming an elongate, very broad club,
7-10 strongly transverse, 7 considerably narrower than 8, 11 much narrower and slightly longer than 10,
rounded at the tip; prothorax about as long as broad, flattened-cylindrical, completely immarginate at
the sides, very little narrower at the apex than at the base, widest at the middle, the basal and apical
margins raised, the sides a little rounded at the middle, feebly sinuous in front and more distinctly so
behind, the hind angles distinct, the disc with a shallow transverse depression on either side about the
middle and with indications of a faint median groove at the base, the surface finely, sparsely, irregularly
punctate; elytra convex, comparatively short, very much wider than the prothorax, widest beyond the
middle, and gradually narrowing thence to the base, with regular rows of exceedingly minute, approxi-
mate punctures placed upon very fine almost obsolete striw, the interstices perfectly flat throughout and
apparently smooth (under a strong lens an exceedingly dense, minute, reticulate sculpture is visible, which
gives the surface a dull appearance) ; beneath shining, violaceous, almost smooth; legs rather slender,
violaceous, the tibie punctured, the femora smooth ; epipleure exceedingly narrow from about their basal
third onwards.

Length 6-6}, breadth 2 millim. (¢ @.)

Hab. Mexico, Motzorongo and Atoyac in Vera Cruz (fohr).

One pair, the male in a mutilated condition and without antenne. This peculiar

HETEROMERA. 563.

little species differs from all the allied forms in the short, strongly clavate antenne;
nevertheless it is not advisable at present to separate it from Strongylium.

9 (a). Strongylium conradti.

Moderately elongate, convex, dark bronze, the elytra very shining, the head (except in front) and the pro-

’ thorax duller. Head very densely, finely punctate, more sparsely so in front, feebly longitudinally
depressed in the middle between the eyes, the latter very large and somewhat narrowly separated ;
antenne black, slender, thickening outwardly, joints 8-10 shorter and wider than 7, 10 almost as broad
as long; prothorax strongly transverse; immarginate at the sides, widest a little before the base, the sides
thence to the apex gradually converging and feebly rounded, and armed about the middle with a short
blunt tooth, the base shallowly grooved within, the groove terminating on either side in a rather deep
depression, the hind angles distinct, the disc canaliculate and feebly transversely depressed on either side
about the middle, the surface very densely, finely, confluently punctured; elytra comparatively broad,
convex, parallel in their basal half, with irregular rows of coarse, deep, excavations, which are here and
there longitudinally or transversely confluent, these excavations becoming shallower and smaller on the
apical declivity, and with strie of fine, approximate punctures at the bottom, the interstices smooth ;
beneath shining, the flanks of the prothorax and the sides of the metasternum rather coarsely and closely,
the ventral segments more finely, punctured ; legs slender, eeneous.

Length 10, breadth 4 millim.

Hab. GuatrmMata, Coban (Conradt).

One specimen, apparently a male. Allied to S. canaliculatum, but with larger eyes
and more slender limbs, the head and thorax more finely and more densely punctured,
the elytral excavations not so coarse, becoming shallower at the apex. The thorax is

very densely, rugosely punctured. .
Specimens of S. excavatum, Makl., were also sent from Coban by Mr. Conradt.

LOBOPODA (p. 387).

In most of the hairy species of this genus the punctures of the elytral interstices
are muricate, that is to say, they are each preceded by a minute raised point (the
puncture itself being very shallow in some of the species); viewed under a low-power
these points are scarcely visible.

This character was not noticed in my descriptions.

6 (a). Lobopoda calcarata. (Tab. XXIII. figg. 23, ¢; 23a, cedeagus.)

Very elongate, pitchy-brown, shining, sparsely pubescent. Head very finely, sparsely punctate, the eyes very
large and approximate in the male, smaller and very narrowly separated in the female; antenn ferru-
ginous, slender ; prothorax moderately convex, gradually narrowing from the base, the sides rounded in
front, the disc obsoletely canaliculate in the middle, the basal fovese deep, the surface very finely, sparsely
punctate ; elytra very elongate, subparallel towards the base, gradually narrowing behind, deeply punctate-
striate, the punctures approximate, but not coarse, the interstices flat on the disc, moderately convex
towards the sides and apex, rather sparsely, very finely punctate, the apices rounded ; beneath ferru-
ginous, sparsely, finely punctate, the sides of the metasternum coarsely so; legs ferruginous or obscure
ferruginous, very elongate.

g. Anterior tibie strongly and angularly dilated on the inner side before the middle. The lateral lobes of
the last ventral segment long, 8poon-shaped, and curved inwards, armed on the upper edge near the base

564 SUPPLEMENT.

with a sharp triangular tooth, the lower edge feebly serrate ; the central sheath rather broad, blunt at
the tip. .
Length 133-143, breadth 43-43 millim. (¢ 9.)

Hab. Mexico, Juquila (Flohr).

One pair. Allied to Z. mexicana, but larger and much more elongate ; the anterior
tibie angularly dilated within, and the lateral lobes of the last ventral segment very
differently shaped, in the male.

In the form of the cedeagus, L. calcarata approaches L. panamensis.

Lobopoda convexicollis (p. 395).
To the localities given, add :—GuatTEMALA, Coban (Conradt).

20 (a). Lobopoda teapensis. (Tab. XXIII. fig. 24, cedeagus.)

Moderately elongate, fusiform, pitchy-brown, thickly and coarsely pubescent. Head finely and rather sparsely
punctured, more closely so in front, the eyes very large and approximate; antenne ferruginous, mode-
rately slender, not reaching to the middle of the elytra; prothorax convex, narrowing almost from the
base, the sides rounded anteriorly, the hind angles subrectangular, the disc shallowly but distinctly
canaliculate, the basal fovee rather deep, the surface closely, finely punctate, sparsely so on the middle of
the disc ; elytra moderately long, rapidly narrowing from a little below the base, and rounded at the
apex, deeply and coarsely punctate-striate, the punctures closely placed, the interstices strongly convex
towards the sides and apex, flatter on the basal portion of the disc, muricately punctured ; legs ferruginous,
rather stout.

¢. Anterior tibie slightly sinuous within. The lateral lobes of the last ventral segment moderately long,
somewhat spoon-shaped, abruptly bent inwards at the apex ; the central sheath gradually narrowing to
the tip. .

Length 84, breadth 37 millim.

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One specimen. Closely allied to L. chontalensis, but smaller and less elongate ; the
thorax more parallel at the sides behind (the hind angles in consequence less promi-
nent), more finely and more sparsely punctured, and with a distinct, shallow median
groove ; the elytral interstices more convex. Compared with JL. simplex, the elytra
are much more rapidly narrowed behind, and the cedeagus is very differently formed.

Lobopoda opaca (p. 400).

A single (¢ ) specimen from Coban, Guatemala (Conradt), is perhaps referable to
this species ; it differs from the Panama type (¢) in having the upper surface less
opaque, and in the elytral interstices being less distinctly punctured. The cedeagus is
similarly formed.

Lobopoda jalapensis (p. 402).
To the Mexican localities given, add :—Tampico (fohr),

HETEROMERA.

Leo
“o>
Or

Lobopoda foveata (p. 405).
To the Panama localities given, add :—Matachin (O. Schunke).

Numerous examples, forwarded to us by M. René Oberthiir.

Lobopoda pilosa (p. 405).

To the localities given, add :—Guvatemata, Coban (Conradt).

We have now received a male example of this insect, the characters.of which are as
follows :—

3. Eyes very large and approximate; anterior tibixe slightly sinuous within; the lateral lobes of the last

ventral segment spoon-shaped, their apices somewhat truncate and furnished with a few very short hairs ;
_ the central sheath narrow.

The lateral lobes of the last ventral segment are broader, less narrowed outwardly,
and more obtuse at the tip than in the allied L. foveata.

ALETHIA (p. 417).

2 (a). Alethia nitidipennis.

3. Elongate, narrow, parallel, pitchy-brown, thickly clothed with long, decumbent hairs, the head and pro-
thorax dull, the elytra shining. Head very densely, finely, confluently punctured, the eyes large,
narrowly separated; antenn ferruginous, slender, filiform, extending to beyond the middle of the elytra;
prothorax strongly transverse, slightly flattened on the disc, the sides gradually converging from the base
and feebly rounded anteriorly, the disc obsoletely depressed in the middle at the base, the surface very
densely, finely, confluently punctured; elytra very elongate, much broader than the prothorax, parallel
for two-thirds of their length, finely and lightly punctate-striate, the strie becoming a little deeper at the
apex and the punctures closely placed, the interstices thickly and more finely punctate, flat, feebly convex
at the apex ; legs very long and slender, pitchy-brown, the tarsi rufo-testaceous.

Length 8, breadth 24 millim.

Haé. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Two examples, both males. Closely allied to A. longipennis and A. subnitida ;
differing from the former in the much longer pubescence, larger and more widely
separated eyes, more transverse thorax, and relatively shorter, distinctly punctate-striate
elytra, and from the latter in the very densely scabrous-punctate thorax and the more
finely punctured elytra.

CHARISIUS (p. 421).
1(a). Charisius picturatus. (Tab. XXIII. fig. 21, ¢.)

Elongate, shining, bright rufo-testaceous ; the elytra each with a short oblique stripe below the shoulder, a
strongly angulated postmedian fascia (which is interrupted in one specimen), and a short, angulated
fascia or crescentiform mark before the apex, neither of which reach the suture, yellow, these markings
edged on all sides with black and dentate in front and behind. Head finely and somewhat thickly
punctured; antenne rufo-testaceous, filiform, not reaching to the middle of the elytra; prothorax
transverse, the sides parallel behind, rounded and converging in front, the transverse basal groove very
deep and extending outwards to the deep basal fover, the disc distinctly canaliculate, the surface very

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, March 1893. 4 DD

566 SUPPLEMENT.

finely, sparsely punctate ; elytra elongate, parallel in their basal half in the male, slightly widened at the
middle in the female, finely and rather deeply punctate-striate, the interstices smooth, feebly convex
throughout; beneath ferruginous, shining, the metasternum sparsely and somewhat coarsely punctured,
the punctures becoming very coarse towards the sides and extending on to the adjacent portion of the
epipleure, the ventral surface almost smooth ; legs very elongate, rufo-testaceous.

g. Anterior tibie triangularly dilated on the inner side about the middle; the fifth ventral segment broadly
and shallowly depressed along the centre.

Length 103-11, breadth 37-83 millim. (¢ 9.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One pair. Closely allied to the Guatemalan C. fasciatus; but differing from all the
varieties of that insect in having the anterior spot on the elytra oblique, and placed at
the side, instead of on the middle of thedisc. The elytral interstices are slightly convex
throughout, the metasternum is more distinctly punctured, and the anterior tibie in

the male are more angularly dilated within. The elytral markings are very sharply
defined.

HYMENORUS (p. 424).
Hymenorus laticollis (p. 429).

To the locality Mexico, add :—Chilpancingo and Omilteme in Guerrero (H. H. _ Smith),
Mexico city (fohr).

Hymenorus badius (p. 433).

A single specimen (¢ ), from Canelas in Durango (Flohr), perhaps belongs to this
species ; it differs from the type in being very much larger and broader.

Hymenorus longicollis (p. 434).
To the Mexican locality given, add :—Bobo (Lohr).

Hymenorus igualensis (p. 434).

To the Mexican locality given, add:—Chilpancingo (H. H. Smith), Guadalajara
(Flohr).

Hymenorus angustatus (p. 436).
To the locality given, add :—Mexico, near the city (Flohr).

ZEANES. (To follow the genus Hymenorus, p. 441.)

Last joint of the maxillary palpi triangular, stout, its apical and outer sides about equal in length and each
longer than the inner side, the latter rounded ; last joint of the labial palpi stout, truncate at the tip ;
antenne filiform, rather stout, about reaching to the basal third of the elytra, joint 2 very short, 3 about
one-third longer than 4, 4-11 almost equal in length and breadth, longer than broad; head comparatively
large ; eyes exceedingly large, oblique (if viewed from above), coarsely granulated, subapproximate, deeply
emarginate; prothorax subcylindrical, longer than broad, only a little wider than the head, truncate in

HETEROMERA. 567

front, deeply bisinuate at the base, the marginal carina not visible from above, the base finely margined ;
scutellum strongly transverse ; elytra oblong-oval, much wider than the prothorax, very feebly margined
at the sides (the margin not visible from above); legs rather short, moderately stout; anterior and inter-
mediate tarsi with the third and fourth joints, and the hind tarsi with the penultimate joint, lobed
beneath ; the basal joint of the hind tarsi very elongate, much longer than the other joints united; claws
pectinate; prosternum abruptly declivous behind ; intercoxal process of the abdomen narrow ; epipleure
extending narrowly to the apex; body elongate, narrow, obovate, densely pubescent, winged.

This genus is proposed for a remarkable Cistelid from Western Mexico. It is allied
to Hymenorus, but differs from it in having the thorax elongate, subcylindrical, and
narrow, much narrower than the elytra and very little wider than the head. The
single specimen received is, no doubt, of the male sex, the eyes being exceedingly
large. In the form of the thorax it approaches Hymenorus longicollis.

1. Hianes angusticollis. (Tab. XXIII. fig. 20.)

Moderately convex, pitchy-brown, feebly shining, thickly clothed with coarse, decumbent hairs. Head closely
punctured in front, sparsely so behind, the middle of the vertex smooth, the eyes black, narrowly sepa-
rated, the palpi rufo-testaceous; antenne ferruginous; prothorax distinctly longer than broad, parallel
for three-fourths of its length, the sides feebly rounded in front, the hind angles subrectangular, the entire
surface very densely, finely punctate ; elytra oblong-oval, barely three times as long as, and much broader
than, the prothorax, widest about the middle, punctate-striate, the punctures very closely placed, shallow,
and rather coarse, the interstices almost flat, very thickly punctured, densely so towards the base ;
beneath shining, thickly, rather coarsely punctate, the punctures on the venter finer; legs ferruginous,
the femora slightly infuscate, the tarsi paler.

Length 63, breadth 2} millim.

Hab. Mexico, Acapulco (Lohr).

One specimen.

AMAROPSIS. (To follow the genus Pitholaus, p. 446.)

2. Last joint of the maxillary palpi elongate-triangular, its apical and outer sides about equal in length, each
very much longer than the inner side; head small ; eyes comparatively small, rounded (if viewed from
above), very widely separated, feebly emarginate, and rather finely granulated; antenne elongate,
exceedingly slender, joint 1 stout, 2 very short, 3 considerably shorter than 4, 4-11 elongate, gradually
increasing in length, and a little dilated on the inner side towards the tip; prothorax transverse,
nearly twice as wide as the head, parallel at the sides behind, moderately convex, finely margined (the
carina visible from above), truncate in front, bisinuate at the base, and with distinct basal foves ;
scutellum transversely triangular ; elytra rather depressed, much wider than, and about three and a half
times as long as, the prothorax, subparallel in their basal half, with the humeri rounded ; legs moderately
long, very slender ; anterior and intermediate tarsi with the third and fourth joints, and the hind tarsi
with the penultimate joint, lobed beneath ; the basal joint of the hind tarsi longer than the other joints
united; claws pectinate; prosternum abruptly declivous behind; intercoxal process. of the abdomen
narrow, triangular; epipleure extending narrowly to the apex; body oblong-oval, rather depressed,

glabrous, metallic, winged.
The single species for which this genus is proposed has the facies of a small Amara.
It approaches the European Gonodera, Muls., from which it may be known by the
lobed penultimate joint of the tarsi, the relatively longer basal joint of the hind tarsi,

the very slender limbs, &c.

4DD2

568 SUPPLEMENT.

1. Amaropsis annulicornis. (Tab. XXIII. fig. 18, 2.)

9. Aineous, very shining, the head in front, the oral organs, and legs ferruginous. Head closely, finely
punctate, shallowly, transversely grooved in front ; antenne with joints 1 and 2 entirely and the tip of
each of the following ones rufo-testaceous, for the rest piceous ; prothorax transverse, very much wider
at the base than at the apex, the sides rounded and rapidly converging from the middle, parallel behind,
the hind angles subrectangular, the basal fovez oblique, distinct, the surface sparsely, finely punctate ;
elytra with regular rows of very fine, oblong, approximate punctures placed upon almost obsolete striz,
the punctures becoming a little coarser towards the base and still finer towards the apex, the interstices
perfectly flat throughout, each with a single row of exceedingly minute, distantly placed punctures (only
visible under a strong lens); beneath very shining, sparsely, finely punctate, the venter very finely so.

Length 5, breadth 27 millim.

Hab. Mexico, Misantla (Flohr).

One example.
PHEDIUS (p. 447).

Some of the species of Phedius (P. cylindricollis &c.) have rudimentary wings, but
they are not easily seen unless the elytra are removed. In my definition of the genus
the body is stated to be apterous. The mandibles in P. lapidicola are deeply cleft,
the upper tooth longer than the lower one. All the species appear to be rare, very few
examples of any of them having been received as yet. According to Mr. Flohr, they
are found beneath stones.

1 (a). Phedius lapidicola.

Oblong-obovate, convex, pitchy-brown, the elytra shining, the head and prothorax duller, the entire upper
surface thickly clothed with long erect bairs. Head densely, somewhat coarsely punctured, very deeply
transversely grooved in front ; mandibles deeply cleft; antenne ferruginous, very stout, filiform, nearly
reaching to the middle of the elytra, joint 3 considerably longer than 4; prothorax scarcely wider at the
base than at the apex, very convex, transverse, widest at one-third from the apex, the sides strongly
rounded anteriorly and gradually converging behind, the base truncate, the hind angles obtusely rect-
angular, the entire surface very densely, somewhat coarsely punctured ; elytra oblong-oval, much wider
than the prothorax, widest beyond the middle, with rows of moderately fine, subapproximate punctures
placed upon almost obsolete strie, the interstices flat, thickly, confusedly punctured, the punctures of the
strie not coarser than (and scarcely distinguishable from) those of the interstices and becoming finer at
the apex; beneath ferruginous, shining, thickly and rather coarsely punctured, clothed with long, decum-
bent hairs ; legs very stout, obscure ferruginous ; body apparently apterous.

Length 83, breadth 32 millim.

Hab. Mexico, Sierra above Cuernavaca (Flohr).

One specimen. Allied to P. chevrolati (of which additional Mexican specimens have
been received from Mr. Flohr), but with the head and thorax less rugose, the elytra
shining and sculptured as in P. cylindricollis and P. obovatus.

1 (8). Phedius hirtus. (Tab. XXIII. fig. 26, ¢.)

Obovate, rather broad, convex, piceous, the elytra shining, the head and prothorax duller, the entire upper
surface thickly clothed with long, semierect hairs. Head very densely, finely punctate, deeply transversely
grooved in front ; mandibles feebly cleft ; antenne fusco-ferruginous, filiform, slender, reaching to about

the middle of the elytra, joint 3 much longer than 4; prothorax convex, strongly transverse, wider at
the base than at the apex, the sides almost parallel from the middle to the base, rounded in front, the
base very feebly sinuate on either side, the hind angles obtuse, the surface very densely, finely punctate ;
elytra comparatively short, much wider than the prothorax, rapidly widening to a little beyond the middle
and abruptly narrowed behind, faintly striate at the apex only, the entire surface confusedly, thickly,
finely punctate (in certain positions the usual rows can be distinguished, though the punctures of the
interstices are not finer than those of the series); beneath rather dull, coarsely pubescent, coarsely and
closely, the ventral surface more finely, punctate; legs comparatively slender, pitchy-brown, the tarsi
rufo-testaceous ; body apparently apterous,
Length 7-74, breadth 34-3? millim. ( 2.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Three examples, all females. Allied to P. chevrolati and P. lapidicola; but less
elongate, the antenne slender, the thorax more transverse and more finely punctured,
the elytra shorter, more finely and more confusedly punctured, the pubescence a little
shorter and less erect, the legs not nearly so stout. Compared with the other species
of the genus, P. hirtus is less elongate and has more slender antenne.

CISTELA (p. 451).

9 (a). Cistela ovipennis. (Tab. XXIII. fig. 19, ¢.)

d. Ovate, pitchy-brown, the head paler, the upper surface dull, finely pubescent. Head closely, finely punc-
tate, the eyes moderately large, rather widely separated; antenne piceous or pitchy-brown, rufo-
testaceous at the base, extending to far beyond the middle of the elytra, joints 2 and 3 very short, sub-
equal in length, 4-11 rather broadly flattened and serrate, much longer than broad ; prothorax trans-
verse, moderately convex, the sides rapidly converging from about the basal third, parallel behind, the
hind angles obtusely rectangular, the base bisinuate, the surface very densely, finely, shallowly punctured ;
elytra ovate, moderately long, widest before the middle, finely and rather deeply punctate-striate, the
punctures very closely placed, the interstices almost flat, thickly, minutely punctate ; legs rufo-testaceous,
the femora and tibie sometimes darker ; anterior and intermediate tarsi slightly dilated, the first joint of
the anterior pair rather broadly so.

Length 5, breadth 23 millim.

Hab. Mexico, Dos Arroyos in Guerrero 1000 feet (H. H. Smith).

Two examples, both males. This small Cistela is of a more regularly ovate shape
than any of the other Mexican species here described.

ISOMIRA (p. 457).

Isomira subznea (p. 458).
The locality for this species is incorrectly given as “ Mexico”: it should be
‘¢ GUATEMALA.”

Isomira —— ? (p. 459).
A second specimen has been received of this insect, from Chilpancingo, which is
perhaps only a large form of J. brevicollis, described from a single example.

ont
+I
a)

SUPPLEMENT.

XYSTROPUS (p. 464).

1. Xystropus californicus.
Prostenus californicus, Horn, Trans. Am. Ent. Soc. ii. p. 138 (1868) *.
Xystropus californicus, Casey, Ann. New York Acad. vi. p. 74.
Xystropus fulgidus (Makl.), huj. op. p. 464, Tab. XXI. fig. 10.

To the localities given, add :—NortH America, Martinez in California ?.

As Dr. Horn remarks}, it is probable that this insect may have been imported into
California. We have not seen it from north of the Isthmus of Tehuantepec.

CTEISA (p. 465).
Cteisa pedinoides (p. 465).
To the localities given, add:—Mexico, Misantla (Lohr), Vera Cruz (Hége).

Two specimens, differing from those from the State of Panama in having the thorax
slightly rounded at the sides behind, with more obtuse hind angles.

HYPORHAGUS (p. 472).

Hyporhagus levepunctatus (p. 474).

To the localities given, add:—GuateMaLa, Paraiso (Champion); Panama, Matachin
(O. Schunke).

I am indebted to M. René Oberthiir for the loan of the types of H. levepunctatus,
H. lecontei, and H. fusciceps. Our insect agrees perfectly with H..lwvepunctatus
(=Jlecontei). H. fusciceps has a more coarsely punctured thorax, and the punctures of
the elytral series also coarser.

5 (a). Hyporhagus nitidus.

Broad, ovate, moderately convex, very shining, black, the anterior margin of the prothorax obscure ferruginous ;
the antenne pitchy-brown, the legs piceous. Head densely, somewhat coarsely punctate; antenne with
a moderately large, 3-jointed club ; prothorax transverse, rapidly narrowing from the base, the sides feebly
rounded anteriorly and sharply margined, the surface minutely, rather closely punctate, the punctures
still more minute on the middle of the disc, the disc with a smooth narrow median space behind; elytra
narrowing from a little below the base, strongly flexuous at the sides before the middle, broadly and very
sharply margined, with rows of very fine, rather closely placed punctures, which in the three rows next
the suture at the base are replaced by very shallow, more distant, coarser impressions, the interstices
perfectly flat, each with two or three irregular rows of very minute punctures; beneath black, the ventral
surface closely, finely punctate, the metasternum with more minute, scattered punctures, the sides of the
latter and of the first ventral segment obliquely and rather coarsely strigose ; mesosternal carina feebly
arcuate in the middle; anterior tibia broadly concave along their upper face.

Length 62, breadth 4 millim.

Hab. Nicaraeva, Chontales (Belt).

HETEROMERA. 571

One specimen. Much larger, broader, and more shining than J. levepunctatus ;
the elytra more strongly flexuous at the sides, narrowing from a little below the base,
and with very prominent, reflexed, marginal carina; the legs and antenne much darker
in colour. It is nearly allied to H. steinheili, Oberth., from Colombia.

9. Hyporhagus suturalis. (Tab. XXIII. fig. 22.)

Elliptic, convex, very shining; rufous, the head, the mandibles at the tip, the elytra with a broad sutural
stripe and a common transverse basal patch, and sometimes the prothorax in the middle at the base, more
or less piceous, the anterior margin of the prothorax yellowish; the antenne rufous, the club sometimes
paler; the legs and under surface rufo-testaceous. Head densely, rather coarsely punctate; antenne
with a broad, 3-jointed club; prothorax transverse, rapidly narrowing from the base, the sides sharply
margined and very feebly rounded, the surface sparsely, minutely punctate, the punctures almost oblite-
rated towards the sides; elytra somewhat gibbous, declivous from about the basal third, feebly margined
and moderately flexuous at the sides, the latter slightly rounded, with rows of exceedingly minute punc-
tures, which are completely obliterated on the disc before the middle, become distinctly coarser towards
the suture behind, and at the base are replaced by coarse shallow impressions, the interstices smooth and
perfectly flat throughout; beneath almost smooth ; mesosternal carina broadly, feebly arcuate in the
middle ; anterior tibie not grooved along their upper face.

Length 43-54, breadth 23-37 millim.

Hab. Panama, Bugaba (Champion).

Numerous examples. Allied to H. clavicornis, Oberth., from Ega, but very much
larger than that insect, and also differing from it in various details.

10. Hyporhagus ferrugineus. (Tab. XXIII. fig. 25.)

Elliptic, convex, rather narrow, shining, ferruginous, the prothorax of a yellower and more dilute colour; the
antenne ferruginous, the legs and under surface rufo-testaceous. Head very densely, finely punctate ;
antenne with a stout, 3-jointed club; prothorax rather elongate, not much broader than long, rapidly
and obliquely narrowing from the base, the sides finely margined, the surface very finely, somewhat
thickly punctate, the disc with a smooth narrow median space ; elytra a little rounded at the sides, the
latter very finely margined and feebly flexuous, with rows of fine, distinct punctures, these punctures
being obliterated on the disc before the middle, becoming evanescent towards the suture and apex, and
replaced at the base by coarse, shallow impressions, the interstices smooth and perfectly flat; beneath
almost smooth ; the mesosternal carina feebly arcuate at the middle ; tibie rather narrow, the anterior
pair not grooved along their upper face.

Length 23-33, breadth 13-1? millim.

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).
Numerous examples. A very small, narrow species, the elytra entirely ferruginous,

the thorax yellowish, the upper surface very shining, the legs rather slender.
H. ferrugineus is of about the same length as H. clavicornis, but it is narrower than

that insect.
ASPATHINES (p. 475).

Hyporhagus eneus, Thoms., from San Domingo, the type of which has been kindly
communicated by M. René Oberthiir, belongs to this genus, and it only differs from

572 SUPPLEMENT.

A. ovatus in having the thorax more closely punctured, with the lateral margins less
reflexed and not depressed within. It seems incredible that Thomson could have
described his insect without noticing the form of the antenne.

CENTRIOPTERA (pp. 74, 508).

3. Centrioptera infausta.
Asbolus (?) infaustus, Lec. Proc. Acad. Phil. vii. p. 84°.
Oochila infausta, Lec. List Col. N. Am. p. 59 (1863) ’.
Centrioptera infausta, Horn, Rev. Ten. of Am. north of Mexico, p. 280°.
-Centrioptera spiculosa, huj. op. p. 508.

To the localities given, add:—Nortu America, Texas? ®,

The above synonymy is given on Dr. Horn’s authority.

a
3
4
3
6
/
8

Yl Gent Hm

Ni icc GLA ole 7

TRIENTOMA RUGIFRONS
POSIDES DIS SIpans.

&o MESABATES LATIFRONe.
4 MENCHERES ELONGATUS.

SGMIAS MINUTA.
PESCENNIUS VILLOSUS.
EURYMETOPON BREVICOLLE.
EMMENASTUS GLABRATUS.

W.Purkiss lith

9 EMMENASTUS CHIRIQUENSIS.

CANALICULATUS.
FOVEICOLLIS.

TYDEOLU S AIR.

SINGULARIS.

CHENICUS DCULATUS.

))

)

PANAMENSIS.
boa BE Uo.

I? SURG NICUS. PREGTOR LIE.
Te BPIVRAGUS NIGRICARG

19 : AURULENTUS. .
20 As ORNATUS .@
pie ous BICARINATUS
23 ; PLICATUS.

24 : CUPREUS.

25 : GODMANI.

Hanhart imp

3668.

VAM G61 Sele £

|
-

1 ZOPHERUS COSTARICENSIS. 9 NOSODERMA ASPERATUM. 18 OLOGLYPTUS BICARINATUS.

a y JANSONI. | 10 M" ZUNILENSE. 19 " SINUATICOLLIS.

6) oe TUBERCULATUS: ll i GUATEMALENSE. 20 ASTROTUS SETICORNIS.

4, ” COMPACTUS. Iz " SPARS UM. Zi y LIMOSUS.

i) » HALDEMANNI Var VERRUCOSUS. 13 y INSIGNE. LL ” DEBILIS.

o ” ANGULICOLLIS. 14: N AQUALE. 23 SICHARBAS LOBATUS.

7 NOSODERMA VENUSTUM. 15 TISAMENES TRUQUII. 24 ZAMOLXIS DILATATUS.

8 ” DATOS Oi. 16 OLOGLYPTUS PLANATUS. 25 POLIORCHTES PLATESTHOIDES.

-
ieee ca 17 UCALEGON PULCHELLUS. | ace

Cre fe Y, + D.

1 ASIDA RUGOSISSIMA. 9 ASIDA SCUTELLARIS.

1B hol Pee ae
2 CLATERATA . wee DISSIMILIS. 1g : BLAM LA,
8 : FORRERI. ia ; DiehigiLio. - 20 BRANCHUS OBSCURUS.
A ‘ SUTUBALLE . 12 . PALMERI . 21 CRYPTOGLOSSA MEXICANA.
6 eee LONGIPENNIS. 13 ‘ ViLLOoA 22 EUSATTUS NITIDIPENNIS.
6 EEO ME as 14 ‘ RUPieo es. 2320XINTHAS PRAOCIOIDES.
Z " LAT GOLA TS. Ere) ; SPHARICOLLIS. OACGELE ODES ESCHSCHOLTZ!.
: PA bay Po. lo . MARGINICOLLIS. eee . EUIDA «,
u . UMBROSA Hanhart imp

W.Purkiss hth.
379.

biol, bent? ‘ lyn boleape a LY, ah yy J gi

| RUSATTUS DEPRESSUS ll é ELEODES PONDEROSA. 18 8 ELAODES FORRERI.
28 ELMODES SPINIPES. in 4 : ANGUSTA. 19 g : LEVIGATA.
39 eee i : SONORE. 204 : SOLIERT.

4a 5? AR A 148 : CHIHUAHUENSIS . Ag : SALLE.
637? _ | ROTOMDICOLLIG. . 192 CALC AR ATA 226 ; IMPOLITA.
84 : CURTA, 16 6 : ERRATICA. - 18d ; HOGEL.

9 : SULCATULA. Wa : LONGICORNIS. Ad : SULCATA.
108 : DILATICOLLIS. 256 ; CORY

Hanhart, imp.

W Purkiss hth . ; 385.

Ce Loe,
SAO! COVAKIOYY

Ls fea cide BICOLOR.

2é RUPP SG.

36 > CRASSICORNIS.
4d ” ATRIPES

56 "3 CAVIFRONS,

6 Mores LAV ES.

770. » INFLATUS.

8.826. NOPION GIBBOSUS
WPurkiss lith.

86 CENTRONOPUS SUPPRESSUS.
10 PYRES METALLICUS.
116 RHINANDRUS FOVEOLATUS.

Zé : HELOPIOIDES .
13? ZOPHCBAS SIGNATUS.
146 » LATICOLULIS .

158 RHINANDRUS QBSOLETUS
16¢ ZOPHOBAS PEDESTRiS.

Coleoptera VllV THIS

17 6 TAUROCERAS ANGULATUM
IS [EATUS CRE Vines.

é NYCTOBATES PROCERUSB.
202 NUPTIS CALIGINOSUS.

21 ” INQUINATUS.
22 6 ” VALIDUS.
23 6 , TENEBROSUS .

2) GhYPTUTUS NM JUS

APL ee °b irmp
7 B

ISSTHENOBGA APICALIS.

2 ISICERDES OCCULTUS.

3 ILUS APICICORNIS.
1COUAGP ES PORPUREUS.,
0 ANGULICOLLIS.
6 HESIODUS DEBILIS.

78 » LONGITARSIS.
8 HICHETAON FRONTALIS.

W.Purkiss lith.

9 RHACIUS SULCATULUS.

10 » QUADRICOLLIS.

tl NOTIBIDS APFIRIG.
12 CONIBIUS BRUNNIPES.
le: US Ciel Ue.
14 » LINEATULUS.
15¢ BLAPSIINUS NPTIDUS.

boleopberaVl VPS Ib

i388 BLAPSTINUS GRANDIS.

198 » TIBIALIS.

20 » ATRATUS.

21 2 SULCIPENNIS.

ae EMMENASTOIDES.

236 PENICHRUS BLAPSTINOIDES.,
24 CNEMEPLATIA LATICOLLIS.

it INTEROTITIANIS. 2ot TRILAGTON UURVIPES.,

78 ; BUQUETI.

Hanharl imp.
395.

CRYPTICUS MACULATUS.

PENETA PANAMENSIS.
CLEDLAUS: SUMNER:
TELCOHIS CIAVICORNS.
ARRHABAUS CONVEXUS.
Te PCROCE RUS ANALIS,
SOUS CEPEALOTES .
W.Purkiss bth.

Om Ome Whyte

DAOCHUS MANDIBULARIS.

OF ieee Cy Ue par Ue,
100 SICINUS GUATEMALENSIS.
lig ALEGOURI A SALA L,

Ue PHERESS BATE SCL.

bt ULEDA GROpes..

144d ULOMA MEXICANA .

15d yo RE USA. 7zon DIMIDIALA.,
166 » ARMATA .
176 ” Daria BB.

186 ULOMA DIVERGENS.

1O¢ ULGOSORLA BEIEANT..

0) METULOSONIA REP LEA
2) PRAY eee i ee
926:SITOPHAGUS DILATIFRONS.
de BOLMENUS BIDS.

43 DOLIEMA FRONTALIS.

Wares BING ie TAA

Hanhart imp.
420,

é SITOPHAGUS FULIGINOSUS.

2 ” CYNAOIDES

8 MOPHIS MARGINICOLLIS.

48 CORTICEUS RUFIPES?

5 go NLS:

6 » CRASSICORNIS.
78 ARRHENOPLITA CLAVICORNIS.
8, 8ad ” DISTAND.

9 . CIOIDES.
W.Purkiss lith.

ves)

eee

10. SAPTINE. OVATA.
iio PIAL Y DE MA EXCAVATUM.

ME XICANUM.
UNDATUM.
UNDATUM, var.
RODRIGUEZI.

DIOPHTHALMUM.

TRANSVERSUM.
BISIGNATUM.

20
21
ve.
23
24:
20
viveea|
28

Boleoplera Dll VIE 1D

PLATYDEMA HOGEL

SEXNOTATUM,
GUATEMALENSE.
ORNATUM.
PRETIOSUM.

PA NAMENSE.

TIBLALS..
IS-MACULATUM,
Pr ce,

Hanhart imp
428

SM Celt, FO. boteoptorw, Cx WV IGA Sab I

266
1.2 PLATYDEMA NIGROMACULATUM. 19 PLATYDE MA VENUSIUM . 2. GCOSMENOTR PURESCE NS.
3 , VERSICOLOR : 13- LIGDEWA KIRSCH! .- Pere taAS lS DILATIPES
A, » TRICOLE [4 ” 7ZIMMERMANI. eéLe un Gti # NEA PE NN
56 ; RIPLAGIATUM. 15 ; CONNEXUM JZ4gHAPSIDA CHRYSOMELINA .
) » DIMA BIATUM 16 " ee: SRUOIALUM.. 299 » SERIATO-PUNCTAIA,
8 » “Ue eA Go. ih : ShrRio oR. 26 6 ” TEREBRANS .
Y 7 Lae oe 18 7 ELAVO-VARIEGATUM . d/ 9 ' BeU CAL Dae
0 » CORDOVENSE . IO STENOSCAPHSA Jaleo. 28 d ” )
I . eit oO 0) COSMONOTA NIGRIPES . 299 GONOSPA PHA DONOIDES.
W Pacha hh mere

7 7
GY) a) LK AZ oe eng Hx 7
it ote be; (YEP SETA aes LY 7L/ :

Coleap Lora Vol WV §

ee is fe: be D gGO

» DY TiSCGIDE se.

La ieee

» INSULARIS.
BSBYCREA VILLOSA .

6 SCAPTES SQUAMULATUS.
; SENS SCAR RIP Rio.
8 CALYMMUS- VARIFGATUS .
GO OZULAIS. VERRUCOGA..

W-Purkaiss ith .

PHALERIA GUATEMALENSIS,
» NEOTROPICALIS.

1 OZOLALS hi Tras. .
Tig 8 ELONGATA .
12 GONIADERA OCULATA .

13 » NICARAGUENSIS.
14 » FIGs .
£50: D ALTERNATSA.

16 XANTHICLES CARABOIDES .
17 ANEDUS MEXICANUS .

18
be
208
oe

ANE DUS MARGINATUS.
APICICORNIS.
BREVICOLTIS.
SETULOSUS.

226 PARATENETUS PLBLALIS .

)

RUFICORNIS.
VELL GS es.
TUBERCULATUS.
DENTIVULALUS.

H anhar! t imp

l- GYRTOSOMA DEN TICOLLE.. 109MEON PANAMENSIS. 18 PSEUDAPOCRYPHA LACORDAIAH |
2 ” PEGE MINA UM TigACROPIERON BELT. 190 (XIDATES PLANIVOLI IS.

o OMIRYONEUS ERO ERIE. ie 9 bee Sian 208 29 Poh

430 CAMARIA PARALLELA . 13d 0 AGRILOIDES. 2loISAMINAS GIBBIPENNIS.
SoBLAPIDA NEOQTROPICALIS. 14d » CALCARATUM. ° 222 CR710CHES GUBURUTALUS.
6dMOPHON TINCTIPENNIS. 16d D) LONGIPENNE. 23¢HEGEMONA LINEATUS.

bd EPICALLA VARIDE OS: 16d » MEXICANUM. = 249 2» BIGAD DATE.

8 » ATA TF IoC ROMS. So GULAG Ss. 209 »: GUATEMALENSIS.

i ae CUP RE ONL PENS. 260° >» FUNILENSIS..
W.Purkiss lith . : Han mart imp

OE Ch ie ii. EleopleraGl NP ¢ BLL

jee NAVIES NUDE Cae.
19¢ » ENOPLOPOIDES.
209 TAR PE LA TENUIGORN ees
216 : NA OA

ld HEGEMONA COMPRESSU5

28 » NtGRE,

3d ” ANGUSTATUS

40 3 CHIRIQUENSIS.

Bo ‘ COSTARICENSIS. ye i TORRID ee
bo » INTERRUPTUS. a : Sra a : :
7o NAUTES FERVIDUS. 0s Hes

86 »? FING TAGS:

2 FOVEIPENNIS |
ee er 2 ee
W.Purkiss lith. 462.

MMO. Cell: F01e. Coleoptera ll WIb.7 Lab 8

id TARPELA EAI. TO? TARPELA TROP GA Ia. lQe TARPELA TOTONICAPAMENSIS,
20d . VERZE PAOIS. llg y Steere LaLa 20 yoo EL:

) » ATTRA Zé » DEP r woo. ‘fie Ea Loeo GRACILICORNIS .

40 » So inn Lae » CREO OLE oO. Bigs » CAViIP Reo.

5d >» 5 OGi A 14 ” AL Ak Zoe » Peo FS

6 ” Wior lous. ibe ” ce a algo ee 246 ” REGU eS

id » SUBPARALLELA .. 16d ” Bh ed LR yaw 7 ae Aree

89 ” Py Mare ee rie 7 FRAGILICORNIS. 204 » PANAMENSIS.

Be. » CUPREOVIRIDIS.. ed 7 CISTELISOCRM Ss 27a 7 SUMPTUOUSG Ss.

W Purkiss lith. Hanhart imp.

Bc:

LSTALANUS NEOTROPICALIS. 9 ¢ PECILESTHUS VARIPES . 183 STRONGYLIUM HOPENERL,var.PECTORALE .
26 > LATICES . 109 , LETIGOLtia. ioe » CHONTALENSE .

3d » GUATEMALENSIS. ite > FRAGILICORNIS. 20,200¢_ » GIBBUM .

4d » APTE RUS. 12 » » var, 219 > EMINENS .

5 PYANISIA LONGICOLLIS. 13d » IMMACULATUS. 229 » GERSTAECKERI.

69 CUPHOTES JANSON. l4¢ » LEVIGEPS:. 239 » S ALLA L.

76 ; UNICOLOR . 156 » MAKLINI . 249 2 CRIBRIPES

8 $PECILESTHUS NIGRO-PUNCTATUSI6d STRONGYLIUM MACULICOLLE. 259 » CONICICOLLE .

W. Purkiss lith, Iie ” et 0 PENERL. Hanhart imp .
478 .

Ifol Gent: Pow

lo STRONGYLIUM SEMISTRIATUM.

W.Purkiss lith .

EXCAVATUM .

CANALICULATUM.,

VIRIDIFES.
IGNITUM .
Tine TPS S .
EXARATUM
POoSI rare .

99 STRONGYLIUM

ig¢

Coleoptera GOV IEA LOSS

VARITCORNE .
COSTARICENSE.
COLOMBIANUM.
LANGURIOIDES.
FRONTALE.
ATRUM,
OPACIPE NIE .
BIVITTATUM.
AULICUM.

189 STRONGYLIUM

19¢
209
219
226
Zac
240
pee

”?

DECORATUM, rar.
PANAMENSE.
BITIDIVEFS |
VARIAN S .

5 Oe
MISANTER:.
CINGIUM.,
MARGINALE .

Hanharv imp .
Aan.

aes Biol,

é a
(DE

LPO hy

4 oe

G Golo oft LEIU.

VEN PLA yb 76

W.Porkiss lith

He AAS Ne Th aA
oa VEN TRALEE

AURATUM .
MISANTLE,var.~

VIRIDITINCTUM.

yee
CURTICORNE .
RAMOSUM.
BLANDUM .

9¢ STRONGYL IUM IMPR

100

re
124

136

146
156
163

173

PRioo.
ARMATUM, var.
Bee TLE bag,
GREGARIUM .
CARINIPE NE.

PUG IeES)

SUBCOSTATUM .
APICICORNE

Pen.

PSTN
OS) Baal

18g OTOCERUS DILATICORNIS .
194 » TOROLE

204 » NICARAGUENSIS.
219 » -RTERRUS
226 » HAMATUS .

23 ee

24 » IMPRESSIPENNIS .

?
299 PSEUDOTOCERUS ATTENUATUS

Hanhart imp .
487

19 LOBOPODA GIGANTEA. 9 9ag LOBOPODA ATRATA. 16é¢ LOBOPODA ATTENUATA .
2,2a,66 9 ASPERULA. 10d Soi SUBPARALLELA. Lg . TROPIGALI a.
3,3a6 » ACUTANGULA . Lilled » Shoe dhe) one 18184 » FEM RPES.

4, 4a 3 » TRIGA YO . ind » CONVERICOLL IS lee ” HLete.

Bad. » MEXICANA . 13d » CBLONGA: meee’ » SCULP IRATE
6,6a¢ » PANAMENSIS. 14,14 4,6 3 » BONO TCO S Zi2ia,bd 9 Le VACOLLIS.,
a: 9 MUCRONATA. 15l5a¢d » Nas OA LARLG Be. Vi ames » SIMPLE.
8,8a¢d ” APICALIS. 23,230 5 % OPACE -
G.S.Saunders.& WPurkiss del &lith . 5 Hanhart imp.

bol Gente Zon

66 ISDH

~~
os)

Oa dd | a

15 a

17u

wo
196
27a

196
1é LOBOPODA PROXIMA . 89 LOBOPODA NITENS. :
2d : JALAPENSIS. 99e¢d » | RAZUENGES. WANED
38 » PARVULA. 10102¢ .» VIRIDIPENNIS. 189
4d it Ses lll. < BXRIPeNs | 19,190,3d
a TENUICORNIS. 128 » CARINIVENTRIS . 206
6, babs» VIRIDIS . 13d Ree ha. I1,2lad
Cad > FOVEATA . Aided STARE 229

151 5ac TEM NES CARULEMS.

AEE SE 7 RAT Oeste citar ole
G.S.Saunders & W.Purkiss del & lith .

i ae \

”)

169 ALLECULA CASTANEIPENNIS.

Rie ULE.
VERE PAGS.
FERROUS
GAUMERI.
PLP cae

secu ey alee

. a
> : ot
mee NN
Sn ys sate =
i can

eee
<

24
Lladg ALLECULA DEPRESSA. 9 90d ALETHIA LEPTUROIDES . 17,17ad HYMENORUS OCCIDENTALIS.
2d ” _ OPACIPENNIS. 103 » HUGE. 186 » BREVICORNIS.
3d » ANGUSTATA . 11llag THEATETES BASICORNIS. 19¢ 9 TABSALIS
49 LATICEPS . 12,12ad 139 pe FASCIATUS. 20,20ad " OCULATUS
SSeS ALETHIA SALLALI. 14d ZUNILENSIS. 216 5 Pi
6 , LONGIPENNIS. 15d » oy ele ge ate 226 » SUR DGD UO.
136 ” SUBNITIDA . 16,1606 NARSES SUBALATUS . 203 ree FLOR EL

9 AZTEC 24,2406 ” TEBiA LES
G.S.Saunders & W.Purkiss del & lith Hanhart imp.
504.

RAW

yee)
RE-W ROW

25a
IGHYMENORUS HISPIDULUS. 10opHYMENORUS VILLOSUS. 18g PHEDIUS CHEVROLATI .
2,203 FOVEIVENTRIS . lid ; DEPLANATUS . 199 . CARBONARIUS .
3d f LONGICOLLIS. 12 MENES MERIDANUS.. 209 » CYLINDRICU ia.
4 i COLONOIDES. 13,180,8cdPOLYIDUS MERIDIONALIS . 21 TELESICLES CORPUS.
Shad . SIMILIS . 14,14a¢ MENCECEUS CRASSICORNIS .— 22,2206 CISTELA NIGRICGRNIS.
6d : BADLUS. 15,154,308 » # QUALLS | 23d i RECEP TLA
73 ; BREVIPES . 166DIOPENUS COMPRESSICORNIS . 24, 24ad ‘ CHIRIQUENSIS.
-. . RUFICOLLIS . lijtide PUBOLAUS HELEPIULDES. 25,2500 r DELITE SCANS:
2 s GUATEMALENSIS . 26, 26a » DOCULIA.

G.S.Saunders & W.Purkiss ,del et lith . Hanhart imp.

id CISTELA ALTERNANS ....

Zo » FRAGILICORNIS.
8gISOMIRA OBSOLETA.

4 » SUBA NEA.

5 5aboERXIAS VIOLACEIPENNIS.
6gPROSTENUS PANAMENSIS.
7 LYSTRONYCHUS PILIFERUS .

3 » PURPUREIPENNIS .
36 » SCAPULARIS .
W.Purkiss lith .

Colecplera UWL. Lb. Yo ve Tobed: ;

10 SYSTROPUS FUL OU.

sl » Palas.
i » pe Beek
13 CIBISAPEOINUIDE 2 .
14 OTHNIUS SENECIONIs .

15,15ad » ANTENNALIS .
16 » MULTIGUITALI SS:
Le ” INTRICATUS.

18 OTHNIUS MEXICANUS.

ie y STICUUOP IAS.
20 MILT TAG

Zi » CRIRIQUBR ore,

22 HYPORHAGUS. UPUN Tia.

23 ” DURANGOENSIS .
24,2403 » EMARGINATUS.
rae » OBLITE RA

26 , 260 ASPATHINES OVATUS..

Hanhart imp.
She

Biol ; omer ey

1 PIMELIOPSIS GRANULATA .
2 TRIMYTIS OBOVATS .

3 AREOSCHIZUS MEXICANUS .

4, 4a~9 EPITRAGU & GRISTATUS .
5 » CANUS .

YO eo
6 ZOPHERUS NODULOSUS,/7,r,

is » ELEGANS.
8 Q ASIDA GEMINATA .
W.Purkiss lith .

So ASIDA, INTRICATA ..

xy
11
12
13
14:
pe
16
at

FLA.

SPINIMANUS .
TERRE BROSA..

HORRIDA

MORICOIDES .

PURCALA. .
BUR DS..
TAB DA.

Coleoptera. DEA Li V T¢, A Yat Ge

28 #Y

ASIDA LAT SSI es.

» UNLCOS TATA...

» INGENS..

» PReULO GAIA.
ASTROTINS SOS0DERMOIDES:.
CLOG LOS Bares
BRANCHUS CPATROIDES.
ASTROTS VioA US

Hanhart imp.
604.

ae 23 26

1g CENTRONOPUS BIMACULATUS. 10 OXIDATES GIBBUS | 189 AMAROPSIS ANNULICORNIS .
2.2a¢ PHTHORA ARMATA. 11é TARPELA CATENULATA. 19¢CISTELA OVIPENNIS.
3340 ZYPCRTES EPIEROIDES. 12d ; PULCHRA . 20 HANES ANGUSTICOLLIS.
Ate ENNEBCEUS UNIFORMIS. 13 HELOPS ENITESCENS . 216 CHARISIUS PICTURATUS.

6 MYMONE CRENATA. 14,14a9 MENTES RUFICOLLIS. 22 HYPORHAGUS SUTURALITS.
6 ANEDUS VILLOSUS . 15 9 ; FUSIFORMIS. 23, 23a 6 LOBOPODA CALCARATA..
7.1ad PARATENETUS NIGRICORNIS 16,16a STRONGYLIUM CLAVICORNE 246d ; TEAPENSIS.
8, 8a¢ : CONSTRICTUS. 17 POACILESTHUS CUPRIPENNIS .25 HYPORHAGUS FERRUGINEUS.
o3 ‘ SEXDENTATUS. : 269PHEDIUS HIRTUS.

W.Purkiss lith. Hanhart imp.
606,

Internet Archive Audio

Featured

Top

Images

Featured

Top

Software

Featured

Top

Books

Featured

Top

Video

Featured

Top

Mobile Apps

Browser Extensions

Archive-It Subscription

Save Page Now

Full text of "Biologia Centrali-Americana : zoology, botany and archaeology /edited by Frederick Ducane Godman and Osbert Salvin."

See other formats