Ufie

THOMAS LWC0LK
CASET

LIBRARY
1925

BIOLOGIA

CENTRALI-AMERICANA.

IN SECT A.

COLEOPTERA./ Vol. II. Part 2?^
PECTINICOBNIA AND LAMELLICOBNIA.

BY

HENRY WALTER BATES, F.R.S.,

ASSISTANT-SECRKTARY OP THE KOXAL GEOGRAPHICAL SOCIEiy, &.C.

1886-1890.

.•:k,.

n

^mm^'^'-"

|3blb
81

INTRODUCTION.

The present volume of the Coleoptera section of the Central-American fauna deals
with the two allied Tribes Pectinicornia and Lamellicornia, well-defined groups which
include many of the largest and most striking forms of the order. The genera repre-
senting the two tribes were placed by Linnaeus and other early systematists, apparently
under a vague, but not less true, sense of their superior organization, at the head of
the whole Coleopterous series, a position from which they have since been deposed in
favour of the less specialized Cicindelidse and allied groups of the Adephaga. The
higher specialization of the Lamellicornia is clearly shown in the tendency they display
to consolidation of parts of their external structure, especially the mouth-organs, the
ligula with the mentum, and the labrum with the clypeus or epistome, and still
more clearly in the concentration and reduction in number of the ganglia of the
nervous system.

The two tribes were considered as forming one only by the eminent specialists
Erichson and Burmeister, and were separated by Lacordaire in his classical ' Genera
des Coleopteres,' in 1856, chiefly on the ground of the immobility of the antennal
lamellae, the same being movable like the leaves of a book in the more highly
organized Lamellicornia. This constant difference is, however, supplemented by many
other important and significant characters, which, though constant within subordinate
groups of each respectively, do not apply to the whole tribe and are therefore of minor
systematic value, though indicating sufficiently distinct tribal types of form and lines
of development.

With regard to the contents and relations of the Central-American fauna of Pecti-
nicornia and Lamellicornia, the two tribes present such different aspects that they
must be considered separately.

In Pectinicornia our fauna is exceedingly poor in the chief family of the tribe, viz.
the Lucanidae, but, on the other hand, exceedingly rich in the other and more aberrant

a 2

iv INTEODUCTION.

family, the Passalidse. Of Lucanidae we are able to record only 5 species of 3 genera,
whilst in Passalid® we have 67 species of 27 genera. A comparison with such allied
faunas in other parts of the world as have been worked out sufficiently to promise
approximately accurate results, seems to show that the poverty in Lucanidse arises from
Central America lying too far south in the continent to have been reached by many
species of Old-World genera, which in America extend no further south than the
temperate zone, and too far north for the genera characteristic of South Brazil,
Chili, and the Andes. The conditions seem, however, to be very favourable to the
Passahdse, which here reach their highest development and exhibit more diversity of
form than in any other region. Other faunas show the following proportions : — North
America (Henshaw's Catalogue, 1885, and Suppl. 1887) possesses of Lucanidae 14
species of 5 genera, and Passalidse 1 species of 1 genus ; Brazil (Gemminger and Harold's
Catalogue, 1868), Lucanidae 22 species of 6 genera, Passalidae 25 species of 16 genera.
The Colombian subprovince probably approaches our fauna nearer in its proportions of
the two families ; but the data for an approximate enumeration, in this case, are not at
hand. In the tropical regions of the Old World the predominance of the Lucanidae is
everywhere strongly marked. In the islands of the Malay Archipelago there are
upwards of 80 species of Lucanidae of a dozen genera, and only about 27 Passalidae
of 6 genera.

The Lamellicornia are well represented in Central America in all their families. In
the following pages we are able to record the large total of 1028 species contained in
127 genera. This is about one-tenth of the number described to the present date from
all parts of the world, which I find, on a rough enumeration, to be very nearly 10,000.
On comparing this proportion with those of the previously completed tribes in the
present work, we find that it is rather greater than in the Geodephaga, where the
numbers are 1086 : 12,000, and much less than in the Longicornia, of which Central
America possesses 1273 species out of the total number described, viz. 8968. A com-
parison of the Lamellicorn fauna with that of other tropical regions of similar extent
is impossible, as the necessary data do not exist in a connected form : we cannot say
therefore whether our fauna is exceptionally rich for a tropical region ; but as compared
with temperate regions, e. g. Europe and North America, it is certainly very much richer
than either. Of Lamellicornia Europe possesses only 636 species of 71 genera and North
America 523 of 75 genera. In the less tropical tribe of Geodephaga the proportion is
nearly reversed, our region furnishing only 1086 species, as compared with 1760 and
1223 for Europe and North America respectively; on the other hand, in the more
tj'opical tribe of Longicornia Central America shows a still more decided superiority,

INTEODIJCTIOIS". V

the number of species being 1273, whilst for North America (Henshaw's Catalogue) it
is 579, and for Europe (with the Caucasus), according to the latest edition of Heyden,
Reitter, and Weise's Catalogue, only 473 species.

The material for the present volume has been relatively richer than that for the
former volumes on the Geodephaga and Longicornia, for in addition to that obtained
by the four years' labours of Mr. Champion, and the fine collections of M. Salle, Herr
Hoge, Herr Van Patten, Mr. Belt, and others mentioned in a previous Introduction, it
includes a very large collection, a portion of the fruit of Herr Hoge's second journey
to Mexico, and another, rich in new and interesting forms, obtained by Mr. and Mrs.
H. H. Smith during their recent journey, in which they visited parts of Mexico not
previously explored. Many new species have also been obtained from Herr Conradt
and from Dr. Gaumer, who collected in Guatemala and in Yucatan respectively. Mr.
Flohr has also sent us specimens of many new species, some of the most remarkable
of which were collected in the Sierra Madre of Durango.

The total number of species enumerated in the present volume is 1100 : 494 new
species ( Pectinicornia 23 and Lamellicornia 471) and 19 new genera (Pectinicornia 4
and Lamellicornia 15) are described.

Of the 1028 species of Lamellicornia, 107 are left unnamed from want of sufficient
material, such species being represented by single specimens only, often imperfect,
which, in this family, where the sexual differences and degrees of development are so
important, cannot afford reliable specific characters ; these unnamed species chiefly
belong to Lachnosterna (36), Anomala (24), and Biphtaxis (13). 492 species are
figured (Pectinicornia 18 and Lamellicornia 474).

H. W. B.

January 1 890.

ERUATA ET CORRIGENDA.

Page

Tiine

112

22

120

31

177

34

191

20

196

2

279

19

406

24

414

11

for G. read 6r.

for A. read O.

after connate insert in the male

for puncticolli read piinctulicolli

after connate insert in the male

for female read male

for a. read A.

for 346 read 345

LIST OF PLATES.

Pectinicoknia.
Cantharolethrus luxerii, S

, $ ..•;

JEsalus neotropicalis ... .

Proculejus pubicostis

championi

Oileus heros

Oxyges laevissimus

Triaenurgus subopacus . . .
Pseudacanthus (?) laticornis

(?) jalapensis

Platyverres intermedius . . .

, var

Popilius granulifrons

debilis

Neleiis tlascala

Rhodocantbopus spiniger .

Phoroneus jansoni

Soranua championi

Yeturius cirratus

Yerres cavicoUis

Lamellicoeitia.

Megatbopa yiicateca

candezei .

Canthon sallsei

moniliatus

femoralis

angustatus

euryscelis

lamprimus

raripilus

forreri

lituratus, var

mntabilis, var

Deltochilum parile, c? • • •

acropyge, c?

lobipes, (5"

scabriusculum, 5 • • •

Eurysternus velutinus . . .

magnus

angustulus

Plate.

Pig.

I.

1

I.

2

I.

3

I.

4

I.

5

I.

6

I.

7

I.

8

I.

9

I.

10

I.

11

I.

12

I.

13

I.

14

I.

15

I.

16

I.

17

I.

18

I.

19

I.

20

II.

1

II.

5

II.

2

II.

3

II.

i

II.

4

II.

6

II.

8

II.

9

II.

10

II.

12

II.

11

II.

14

II.

15

II.

13

II.

16

II.

17

II.

18

II.

19

Page.

1
1

2

5

5

6

7

8

8

9

9,383

9

12,383

12

14, 384

15

18

20

23

24

25

26
26
27
28
28
28, 385
29
30
31
33
34
35
36
37
38
39
40
41

Agamopus lampros, S .
Aphengium semi-nudum

Uroxys micros

Scatimus ovatus

Choeridium guatemalense

ampliatum

Canthidium baroldi . . .

puncticoUe

aurifex, c?

angusticeps

Outherus mexicanus, S •

brevipennis

Pinotus yucatanus, $

amplicollis, c? ...

colonicus, c?

_ .2

Copris Iseviceps

sallaei, c^*

reboucbei, J

armatus, S

incertus, c?

Phanseus corythus, S

, 2

pluto, c?

bitias, c?

chryseicollis, S ■ ■ ■

noctis, cJ minor . . .

velutinus, S

pyrois, S

, $

melampus, c? • • •

amethystinus, S •

damocles, c?

quadridens, c? • • .

-, $ , var. . . .

scutifer, J .....

, s

bermes, S

adonis, J

dapbnis, (J

tridens, J

furiosus, o

nimrod, (^

eximius, c?

Plate.

Fig.

II.

20

II.

21

II.

22

II.

23

II.

24

II.

25

III.

1

III.

2

III.

3

III.

4

III.

5

III.

6

III.

9

III.

10

III.

7

III.

8

III.

11

III.

12

III.

13

III.

14

III.

15

III.

16

III.

17

III.

18

III.

19

lY.

2

III.

20

III.

21

III.

22

III.

23

lY.

1

lY.

3

lY.

4

lY.

5

lY.

6

lY.

i

XXIY.

1

lY.

8

lY.

9

lY.

10

lY.

11

lY.

12

lY.

13

lY.

14

Page.

42
42
43
44

45
45

47
47, 387
48
49
50
51
51
52
53
53
54
54
54, 387
54
55
55
55
56, 387
56
56
56
57
58
58
59
59
59
59
59
60
388
60
61

61, 388

61
61
62

62, 388

Vlll

LIST OF PLATES.

Phanseus tepanensis, J

, cT minor . .

sallsBi, c?

beltianus, (^ . .
wagneri, c^ . .
mexicauus, c?
scintillans, c?
pilatei, c? . . . .
damon, c? . . . .

■ obliquans *, c?

■ excelsus, c? • •
• , c? minor

Onthophagus nitidior, i^

marginicollis, c^

acuminatus, (^

crinitus, var. panamensis, J ,

rhinolophus, cj

belorhinus, c?

-, 2

prsecellens, c?

,. 2 ...

sharpi, cJ . . .

, 2 ...

tapirus, J'

nasicornis, (S
dicranius, cf . . . .
mexicaniis, (5 . .
guat-emalensis, (S
lecontei, (^ . . . ,
championi, c? . ,

, 2

orphnoides . . . .
landolti, J . . . .

• longimanus, c? . ,

• chryses, J

-, 2

gazellinus, c? . . . .
rufescens, $ . . . ,
corrosus, c? . . . .
cuboidalis, c^"
chevrolati, (^
totonicapamus, c?
undulans, c? . . . .
cyanellus, d • . . ■
inflatieollis, cJ . .
-,2

Oniticellus monstrosus, (J

■,2

rhinocerulus, J

, cJ minor ,

Aphodius dugesi, S

sallsei ,

aztecus

Plate.

XXIV

XXIV

IV.

IV.

IV.

IV.

IV.

IV.

IV.

IV.

XXIV.

XXIV.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

V.

VI.

VI.

VI.

VI.

VI.
XXIV.

VI.
XXIV.
XXIV.

VI.

VI.
XXIV.
XXIV.

VI.

VI.

VI.

Fig.

Page.

2
3
15
16
17
18
19
20
21
22
4
5
1
2
3
4
5
6
7
8
9
11
12
10
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
6
6
6
7
8
7
8
9
10
9
10
11

Plate.

388

388

63

63

63

64

64

65, 388

65, 389

65, 389

389

389

67, 389

67

68

68

69. 389
69
69
70
70
71
71
71
72
72
72

73, 390

73

74

74

-'^'- - 75

75. 390
76

- :^^ 76

76

78

78

■ 78

79

80

^ 80

390

81

390

390

83. 391
83, 391

391
391

83
84,391

84

Aphodius glyptus
latecrenatus

euprosopus
constricticoUis
opisthius t . . . .
panamensis . ,
guatemalensis
charmionus . ,

xanthus

larrese J ,

fuliginosus .

Saprosites cossonoides

Euparia tuberculata

Atsenius strigicatida

scalptifrons

^gidium colombianum, var. cri-

bratum, (^

Ochodaeus setulosus .

poUicaris

Coelodes castaneus, cf
Athyreus championi,

fissicornis, c5'

tridenticeps, c? •

Bolboceras sallaei, J ,
arcuafcus, (^

Geotrupes fronticornis, cj

sturmi, c?

mniszechi, J . . . .

sallsei, S

herbeus, d"

guatemalensis, cJ . .

onitidipes, c? • • • ■

cavicollis, c?

Trox acanthinus

An aides simplicicoUis . .

Cloeotus sinuatus

bidens

Acanthocerus eulampros

relucens

rotundicoUis

Aporolaus fimbriatus, c?
Chnaunanthus discolor .

Hoplia festiva

asperula

disparilis, $

cretacea

argyritis

squamifera

albisparsa

surata .

Paula pilatei

centralis

VL
VI.
VI.
XXIV.
VI.
VI.
VI.
VI.
VI.
VI.
VI.
VL
VL
VI.
VI.

Fig.

12

13

14

11

15

16

17

18

19

20

21

22

23

24

25

Page.

VII.

1

VII.

2

VII.

3

VII.

4

VII.

5

VII.

6

VII.

7

VII.

8

VII.

9

VII.

10

VII.

11

VII.

12

VII.

13

VII.

14

VII.

15

VII.

16

VII.

17

VII.

18

VII.

19

VII.

20

VII.

21

VIL

22

VII.

23

VII.

24

VII.

25

VIII.

1

VIII.

2

VIII.

3

VIII.

4

VIII.

5

VIII.

6

VIII.

7

VIII.

8

VIIL

9

VIII.

10

VIII.

11

VIII.

12

86
86
87
392
87, 92, 392
88
88
89
90
90, 392
90
93
94
96
100

105
105
106
107
108
108
109
109

111, 394

111,395
112
112
113
113
114
114
115
115
117
118
121
123
126
127
128
130

130, 396
131
131
132

132, 396
133
134
135'
135

136, 396
137

* Phanceus mirahilis on the Plate,
t Aphodius duplex on the Plate.

+

Aphodius bifrons on the Plate.

LIST OF PLATES.

IX

Faula brunneipcnnis * ,

hispida

velutina

Maerodactylus variipes

mexicauus ,

silaonus

lineatocoUis

fulvescens

ocreatus ,

rhomboderus, (^

zunilensis ,

fiericeicollis

lineatus

suavis ,

sericinus ,

sylphis

rufescens

championi

ovaticollis

thoracicus

virens

murinus

Isonychus ocellatus

, var

, var

, var. piperitus ,

pictus, 5

paradoxus, cJ ,

Barybas auritus

Pseudoserica micans ,

integrata

Liogenys macropelma ,

pubisternis

pubereus, 2

Diplotaxis pilifera, c?

clypeata

trapezifera, c?

corrosa, var. paohucana . . . .

alufcacea ,

aurata

flavisetis <

Chlsenobia aegrota, S

Chirodines zunilensis, J

Listrochelxis cavatus, var. duran

goensis, c? •

micros, (^

prsesidii, c?

maximus, J ,

oblongulus, (S

Phytalus cometes, c?

macrocerus, (S

platyrhinus, d"

batillifer, c?

hdgei, c?

pentaphyllus, c?

Plate.

Fig.

VIII.

13

VIII.

14

VIIL

15

VIIL

16

VIII.

17

VIII.

18

VIII.

19

VIIL

20

VIII.

21

VIIL

22

VIIL

23

VIII.

24

VIII.

25

IX.

1

IX.

2

IX.

3

IX.

4

IX.

5

IX.

6

IX.

7

IX.

8

IX.

9

IX.

10

IX.

11

IX.

12

IX.

13

IX.

14

IX.

15

IX.

16

IX.

17

IX.

18

IX.

19

IX.

20

IX.

21

IX.

22

IX.

23

IX.

24

IX.

25

XXIV.

12

XXIV.

13

IX.

26

X.

1

X.

2

X.

3

X.

4

X.

5

X.

6

X.

7

X.

8

X.

9

X.

10

X.

11

X.

12

X.

13

Page.

137
137
137
138
139
140
140
140
141
141
142
142
143
144
144
144

145, 396
146
146
146
147
147
148
148
14S
148
148
150
160
153
154
155
155
156

157, 396
157

159, 397
161
398
398
165
167
169

170
170
171
172
173
7, 400
179
179
180
180
180

17

Phytalus xanthocomus, c?

bucephalus, $

lineatus, J

stramineus, g

omiltemius, c?

Lachnosterna castaniella, J

heteronycha, ,5 ■ • • •

baroni, c?

piceola, c?

rostripyga, c^

scabrifrons, $

■ leonina, J .......

ciibricoUis, J

• rugicollis, $

erinipennis, 2

punctulicollis, c? . . . .

ravida, (5

anomaloides, J

macrophylla, cJ • • . .

dasypoda, c?

polyphylla, J

testaceipennis, c5' . . . .

godmani, c?

rorulenta, c?

cinnamomea, 5 . . . .

sturmi, $

gigantea, S , var

setifera, (S

rugipennis, ,^

hemilissa, 2

schizorhina, J

rugulosa, c?

molopia, c?

nigerrima, c?

misteca, c? , var

multipora, c?

mexicaua ?, c?

Eugastra ? f

Polyphylla decem-lineata, cJ

petiti, S

hammondi, cJ

Phyllopertha tolucana, c? . .

Anomala discoidalis

guatemalena, var

eulissa

compressicollis

calligrapha

cribriceps

zapotensis

histrionella

championi

ochrogastra

flavizona, cJ

hopfneri, 5

inconstans

Plate.

Fig.

X.

14

X.

15

X.

16

X.

17

XXIV.

14

X.

18

X.

19

XXIV.

15

X.

20

XXIV.

16

X.

21

X.

22

X.

23

X.

24

XXIV.

17

X.

25

XL

1

XL

2

XL

3

XL

4

XL

5

XL

6

XXIV.

18

XL

7

XL

8

XL

9

XL

10

XL

11

XL

12

XL

13

XL

14

XL

15

XL

16

XL

17

XL

18

XL

19

XL

20

XL

21

XL

22

XL

23

XL

24

XII.

1

XII.

2

XII.

3

XII.

4

XII.

5

XII.

6

XII.

7

XII.

8

XII.

9

XII.

10

XII.

11

XII.

12

XII.

13

XII.

14

Page.

181
182
183
183
400
186
186
401
187
401
187

188, 402
189
190
402
191
191
192
193
193
194
195
403

196, 403
197
197
198
198
201
201
202
203
205
207
209
211
212

214, 405
215
215
215
216
217
218
219
219
220
221
221
222
222
223
223
224
225

* Faula brunnipennis on the Plate. f Eugastra cribrosa on the Plate.

BIOL. CENTE.-AMEE., Coleopt., Yol. II. Pt. 2, January 1890. h

X

LIST OF PLATES.

Anomala gemella

clievrolati

flavilla

megalops

hispidula, 5

dentieollis

foraminosa , . .

irrorata

atomogramma

amphicoma, c?

semitonsa, var

sylphis

laesicollis, 2 . ,

doryphorina

chrysomelina

sulcans

rhodope

forreri

cupricollis, var. coagulata . . ,

megalia

praecellens

plurisulcata

granulipyga

marginicoUis, Tar. valdecostata

nitescens

calonota

specularis

chrysanthe

phosphora, $

micans

villosella

nutans

vidua

rhizotrogoides

attenuata

castaniceps .

carinifrons .

Epectinaspis mexicana

pictipennis

opacicollis

chelifera

moreletiana

Strigoderma intermedia

sallsei

longicollis

contracta

physopleura

castor, 5

orbicularis

nigripennis

rutelina

teapensis

tomentosa

lampra

Plate.

XII.
XII.
XIL
XII.

xn.

XII.
XII.
XII.
XII.
XII.
XII.
XIII.
XIII.
XIII.
XIII.
XIII.
XIIL
XIII.
XIII.
XIII.
XIII.
XIII.
XIII.
XIII.
XIIL
XIII.
XIII.
XIII.
XIII.
XIII.
XIII.
XIII.
XIV.
XIII.
XIII.
XIIL
XIII.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.
XIV.

XIV. \

Fig.

15

16

18

19

20

17

21

22

23

24

25

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

20

19

21

1,2

22

25

23

24

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19,

20

Page.

226
226
227
227
228
228
229
230
231
232
233
233
233
234
234
235
235
237
238
239
240
240
241

241, 242
242
242
243
243
244
245
246
246
247
247
248
248
249
2"0
250
251
251
251
253

255, 407
255
255
256
256
257
257
258

258, 407
258

I 259

Strigoderma costulipennis . . . .
auriventris

Callirhinus metallescens . . . ,

Dilophochila bolacoides ......

Platyrutela cribrata .

Lagochile circumdata

cbiriquina

Calomacraspis splendens . . . ,

, var

concinna

baroldi

Antichira hirtiventris

rufonitida

catomelasna

iodiella

Ptenomela gratiosa

Thyridium semicinctum

Chlorota terminata

cincticollis, J

flavicollis

(?) belti

Putelisca flohri, (3

, 2

Rutela specularis

Cnemida aterrima

Pelidnota belti

notata

prolixa

costaricensis, $

virescens, 2

, var. aurescens . . . .

, var. jalapensis. . . .

, var. chalcopus . . . .

strigosa

punctulata

Plusiotis victorina, S

aurora, var. chrysopedila

marginata

optima

chrysargyrea

costata, (5

, ? , var

chloreis, cS

adelaida

rodriguezi, var

lecontei

alticola

— — - orizabifi

chalcothea

Chrysina erubescens, $

Macropoides nietoi, $

Heterosfernus rodriguezi, J . .

Parisolea alba *

Cotalpa nigro-a^nea, c?

Plate.

Fig.

XIV.

21

XIV.

22

XIV. j

23,
24

XIV.

25

XV.

1

XV.

2

XV.

3

XV.

4

XV.

5

XV.

6

XV.

7

XV.

10

XV.

9

XV.

8

XV.

11

XV.

12

XV.

13

XV.

14

XV.

16

XV.

15

XV.

17

XV.

18

XV.

19

XV.

20

XV.

21

XV.

22

XV.

23

XV.

24

XVI.

1

XVI.

2

XVL

5

XVI.

4

XVI.

3

XVI.

6

XVI.

7

XVI.

13

XVI.

12

XVI.

11

XVI.

10

XVL

9

XVL

14

XVI.

15

XVL

16

XVL

17

XXIV.

21

XVI.

19

XXIV.

22

XXIV.

24

XVI.

8

XXIV.

23

XVI.

20

XVL

18

XVII.

1

XVI.

22

Page.

260
260

I 261

261, 408
262
263
263
264
264
265
265
266
266
267
267
268
. 268
269

269, 408
269
270

270, 408

270, 408
271
272
273

273,408
273
274

274, 408
274
275
275
276

276, 408
277
277
278
279
279
281
281
282

283, 409
409
283
409
410
284
411

287,411
288

288, 412
289

* Parisolea falva on the Plate.

LIST OF PLATES.

XI

Cotalpa aurescens, cJ

Parachrysina truquii, c?

, 2

Byrsopolis lanigera

Phalangogonia lacordairei .

parilis

championi

PlatyccElia humeralis

Spodochlamys cupreola, $ .

Bolax magnus

flaveoliis

Leucothyreus femoratus . . .
Metapachylus sulcatus, ci" .

, 2 • •.

Aspidolea singularis, J . . .
Ancognatha gequata, cS ■ . .

humeralis, c?

,, 2 , var

quadripunctata, c?

Cyclocephala detecta, c?

stictica, c?

microspila, c?

fasciolata, c5"

fuliginea, J

complanata, c?

sororia, c?

coahuilae, c?

castaniella, c?

curta, c?

comata, cJ

guttata, 5

ovulum, c?

lucida, cJ

amblyopsis, J

mafaifa, (^

picta, cJ

conspicua, ^

atripes, (^

ligyrina, S

proba, 5

nigerrima, ,^

Dyscinetus frater, cJ

Euetheola liumilis

Ligyrus latifovea

laivicollis, (^

nasutus, c?

sallsei

Botbynus quadridens, $ .
Cheiroplatys ciiltripes, S ■

— , $*

fairmairei, c?

, 2 • •.

Xyloryctes lobicoUis, c? . . .

telephus, ^ .

, var. ensifer, (S

Plate.

Fig

XVI.

XVI.

XVI.
XVII.
XVIL
XVI l.
XVIL
XVIL
XVIL
XVIL
XVIL
KYLL
XXIV.
XXIV.
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIL
XVIII.
XVIIL
XVIIL
XVIIL
XVIIL
XVIII.
XVIII.
XVIII.
XVIII.
XVIIL
XVIII.
XVIIL
XVIIL
XVIII.
XVIIL
XVIII.
XVIIL
XVIIL
XVIIL
XVIIL
XVIIL
XVIIL
XVIII.
XVIIL

XIX.

XIX.

21
23
24

2

3

4

5

8

10

6

7

9

19

20

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

22

19

20

23

24

21

4

5

Page.

289
290
290
291
292
293
293
293
294
296
295
295
412
412
296
297
298
298

298, 413
300
300
301
301
301

301, 413
303
304
304
305
305
306
306
307
307
308
309
309
309
309
309
310
312
314
315
316
317
318
319
321
321
321
321
323
323
324

Xyloryctes furcatus, (S .

, 1^ minor. . .

teuthras, cj"

tbestalus, c?

Megaceras pbiloctetes,
tentrionis, c?

var, sep-

Heterogompbus cbevrolati, J • • •

, 2 .• ■ • •

, var. eurytus, (5 minor .

DsemoQoplus mniszechi, (^

2

Enema pan, var. lupercus. (S

— endymion, J

Strategus juliauus, S

, (S minor ,

Podischnus agenor, ^
, cf minor .

-, 2

tersander, c?

-,2

Golofa pizarro, S

, var. clavicornis, c?

, , 6 .._

, , c? minor . .

, , (S minor . .

imperialis, cJ

, c? minor.

, c? minor.

costaricensis, (S
championi, (5 .
, (S minor.

, 2

imbellis, c?

,2 .••••

Dynastes hyllus, (S minor ,
Lycomedes mniszechi, J .
beltianns, cJ

Pbileurus Isevicauda, c?

cylindroides, J . .

dejeani, J

Amblyodus taurus, r?
Argyripa anomala, cj .

■ , 2,y^^-- •

subfasciata, c? .

, c? , var. .

Chiriquibia insignis, J

Cotinis laticornis, 5

mutabilis, var. cuprascens ,

, var. intergenea, (S .

, var. aurantiaca . . ,

, var. obliquaf

punctato-striata, c?

pauperula

pueblensis

Plate.

Fig.

XIX.

I

XIX.

2

XIX.

3

XVIIL

25

XIX.

6

XIX.

7

XIX.

8

XIX.

9

XIX.

10

XIX.

11

XIX.

12

XIX.

13

XIX.

14

XIX.

15

XIX. j

16,
17

XIX.

18

XIX.

19

XX.

1

XX.

2

XX.

3

XX.

4

XX.

5

XX.

6

XX.

7

XX.

8

XX.

9

XX.

10

XX.

11

XX.

12

XX.

13

XX.

14

XX.

16

XX.

18

XX.

17

XXI.

1

XXL

4

XXL

3

XX.

15

XX.

19

XXI.

2

XXL

15

XXI.

17

XXII.

2

XXII.

3

XXII.

1

XXIL

6

XXI.

5

XXIL

5

XXII.

4

XXIL

12

XXIL

9

XXII.

13

XXII.

11

Page.

324
324
324
325

325

327
327
327
328
328
328
329
330
330

331

331
331
332
332
333
333
333
333
333
334, 413
334, 413
334, 413
334
335
335
335
335
335
336
337
338
339
340
340
342
344
344
344
344
344
345
347
347
348
348
349
349
350

* This is erroneously marked as a J on the Plate.

t Cotinis mutabilis, var. malina on the Plate.

Xll

LIST OF PLATES.

Plate.

Cotinis lebasi

olivia

salicis

pulverulenta, c?

adspersa

Gymnetis argenteola

margaritis, c?

difficilis

chontalensis

coturnix, var

chevrolati, var. ramulosa

vandepolli *

callispila, c?

— radiicoUis

stellata

Amithao albopictus

cavifrons

hsematopus

pyrrhonotus

XXI.

XXI.
XXIV.
XXII.

XXI.
XXII.
XXII.

XXI.
XXIII.
XXIII.

XXI.

XXI.
XXII.
XXII.
XXII.
XXII.

XXI.

XXI.
XXII.

Fig-

Page.

6
10
25
10
14

7

8
13
11
12
16
7,8
15
14
16
17

9
11
18

350
352
414
353
353
354
355
355
356
356
356
357, 415
357
357
358
360
360
360
360

Amitliao erythropus . . . .

Euphoria candessei

lineoligera

biguttata

pulchella

chontalensis .....

iridescens

— — mystica

avita

, var

fulveola ....

Chlorixanthe flavoviridis t
Genuchinus V-notatus . .
Dialithus magniflcus ....
Trigonopeltastes sallaei . .

, var

, var

Coelocratus senescens ....

Plate.

XXII.

xxiir.

XXIII.
XXIII.
XXIII.
XXIII.
XXIII.
XXIII.
XXIII.
XXIII.
XXIII.
XXT.
XXIII.
XXIII.
XXIII.
XXIII.
XXIII.
XXIII.

Fig.

19
3
4
2
6

10
1
5
8
9
7

12

14

17

15

16

18

13

Page.

361
364
366, 415
366, 415
367,416
368
368
369
370
370
370
374
375
378
380
380
380
381

Oymnetis Tcerremaiisi on the Plate,

t Ghlorizanthe Jiavipennis on the Plate.

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.

Class INSECTA.
Order COLEOPTERA.

Tribe PECTINICORNIA.
Fam. LTJCANID-aE.

CANTHAEOLETHRUS.

Cantharoiethrus, Thomson, Ann. Soc. Ent. Er. 1862, p. 411.

Three, perhaps four, closely allied species of this beautiful and peculiar genus of
stag-beetles are known, all from Colombia or Ecuador. One of the Colombian species
extends its range into the domain of our Fauna, and is remarkable as being, with the
exception of two small JEsali, the only form known to inhabit Central America of
the conspicuous Family of Lucanidse, so numerously represented in all other tropical
and subtropical regions.

1. Cantharoiethrus luxerii. (Tab. i. figg. i d , 2 ? .)

Dorcus luwerii, Buquet, Ann. Soc. Ent. Er. 1843, Bull. p. li \

Cantharoiethrus luxerii, Parry, Trans. Ent. Soc. 3 Ser. II. p. 6, t. 9. f . 6 ; id. ibid. 1872, p. 76 ( c? ) ;

C. O. Waterhouse, Cistula Entomologica, I. p. 365 ( ? )^
Cantharoiethrus georgius, Thomson, Ann. Soc. Ent. Er, 1862, p. 412 {^Y-

Hah. Costa Rica (Van Patten); Panama, Volcan de Chiriqui 3000 hei {Champion).
— South America, Colombia 12 3.

Four examples, viz. two males from Costa Rica, and two females from Chiriqui. The
largest of the two males measures 50 millim. and one of the females 33 millim.

The examples obtained by Mr. Champion were both found crawling on tree- trunks,
in the dense forest bordering the upper margins of the coffee plantations in the
district known as " Las Potrerillas," situate on the south-east slope of the Volcan de
Chiriqui.

BIOL. CENTK.-AMER., Coleopt., Vol. II. Pt. 2, May 1886. BB

2 PEOTINICOENIA.

^SALUS.
JEsalus, Fabricius, Syst. Eleutli. ii. p. 274; Lacordaire, Genera des Coleopt. iii. p. 42.

Three species of ^salus have been recorded, one European, one Japanese, and one
from Mexico.

1. -ffisalus trogoides. ;

^salus trogoides, Albers, Deutsche ent. Zeit. 1883, p. 228 \ .

■ Hah. Mexico, Oaxaca ^.

As no mention is made of an ocular canthus, this species appears to be a typical
JEsalus. It is much larger (6 millim.) than jE. neotropicalis, and also differs in colour
and in the form of the prosternum.

2. ^salus neotropicalis. (Tab. I. figg. 3, 3 a.)

Oblongo-ovatus, sordide fuscus, antennis pedibusque rufioribus ; supra breviter sat dense erecte setosus, opacus,
grosse discrete punctatus ; clypeo vix arcuato, oculis cantho angusto setifero dimidio divisis ; thorace fere
sicut in ^, scarabceoide ; elytris interstifciis panllo convexis, setis plerumque in striis sitis ; tibiis anticis at
intermediis extus denticulatis dentibusque acutis elongatis tribus, 1° apicali recte exstanti, alteris duobus
medianis ; prosterno piano, nee elevato.

Long. 4 millim. ■

Hah. Guatemala, near the city, Zapote, Capetillo (Champion).

Differs from the type of the genus, and all other members of the subfamily to which
it belongs, in the eyes being divided (for half their v^^idth) by a canthus. The canthus
is linear, convex, and studded with short blunt erect setae like the rest of the surface.
The antennae are very similar ; but the joints 6 and 7 are excessively short and acutely
produced on their inner side. The mesosternum, as in the type, forms a subvertical plate
on the front face of an intercoxal process of the metasternum, and is broadly excavated
to receive the point of the prosternum; the latter is not elevated as in ^. scarahwoides,
but planed to the level of the anterior coxse.

Many examples, obtained by beating the withered leaves and boughs of fallen
forest trees.

Fam. PASSALID-ai.

The latest monographer of this family. Dr. Kaup, in 1871 (Monogr. der Passaliden,
Berlin Ent. Zeitschr. xv.), formulated an elaborate classification, which, as it was founded
on abundant material, and of course applied to the Passalidm of the whole world, I
would willingly have adopted, as the most convenient course in dealing with a limited
fauna ; but a careful examination has shown the classification to be so arbitrary and
inapplicable that I have been compelled to reject it. How far the inconsistencies may
be due to the quinary method which Kaup adopted it is unnecessary to inquire, but
the necessity of making up the number five in the species of each genus, the genera of

PEOCULUS;.. 3

each subfamily, and so fortli, is certainly accountable for some of the errors. The
Passalidse of the New World, instead of forming three out of the five subfamilies into
which Kaup divided the family, seem to me to belong essentially all to one type of
form, with very great diversity of minor characters, but no important differences of
structure. The minor differences afford tolerably trustworthy characters for the formation
of small generic groups of which Kaup established a large number, and in adopting
most of these I have been obliged to institute numerous others on the same class of
modifications, chiefly the ridges and armature of the head. I have grouped the genera
into two sections, characterized by the form of the base of the elytra and the relative
length of these organs, or the hinder body, with regard to the thorax. For con-
venience of reference and comparison I have adhered pretty closely to Kaup's sequence
of the genera, although it violates to some extent their natural afiinities.

Section I. Elytra relatively shorty more or less protuberant in the middle of the hase.

A. Antennal leaflets very long.

PROCULUS.

Proculus, Kaup, Harold^s Col. Hefte, iv. p. 8 (1868); id. Monogr. der Passaliden, p. 65 (1871).

Three species of this fine genus, the giants of the family, are at present known. They
appear to be restricted to Guatemala and the adjoining region of British Honduras.

lu Guatemala P. goryi is confined to the Pacific slope, and found at elevations of
from 1000 to 5000 feet ; P. opacipennis and P. mniszechi to the Atlantic slope, and to
the humid forest region of Alta Vera Paz, at elevations of from 3000 to 5000 feet ;
examples of the last-named species were only met with sparingly in various localities in
this district by Mr. Champion, who, at the time not possessing means of preserving
such large insects in a very humid climate, was unable to retain examples.

Decaying specimens of these and other Passalidee occasionally harbour rare
Staphylinidse.

1. Proculus goryi.

Passalus goryi, Melly, Guer. Mag. Zool. 1833, t. 56 ^.
Proculus goryi, Kaup, Monogr. der Passal. p. QQ, t. 5. f. 1 ^.

Hah, Guatemala ^ ^, Pantaleon, Las Mercedes, Las Nubes above Mazatenango
(Champion), CoBt^. C\xc2i (Sarg.).

This species was obtained plentifully , by Mr. Champiou in the cc/ffee estate' of Las
Nubes and elsewhere along the Pacific slope, by employing the Indians to turn over
the fallen trunks of the largest forest trees, in the decaying wood on the under side
of which the insect passes its earlier stages.

BB2

4 PECTINICORNIA.

2. Proculus opacipennis. "

Passalm opacipennis, Thomson^ Archiv Ent. i. p. 420, t. 21. f. 4\
Proculus opacipennis, Kaup, Monogr. der Passal. p. 68, t. 5. f. 3.

Ilab. Guatemala 1, Coban, Senahu (Cy^«m2?^o^).

3. Proculus mniszechi.

Passalus fforyi, Thomson, Archiv 'Ent. i. -p. 421 {nee Mellj)^. ♦■

Proculus mniszechi, Kaup, Harold^s Col. Hefte, iv. p. 11 ; id. Monogr. der Passal. p. 67, t. 5. f. 2 ^.

Hah. Beitish HoNDDKAS, E. Sarstoon {Blancaneaux) ; Guatemala ^ ^ (xS'a^^e), Sabo,
Tactic, and elsewhere in Alta Vera Paz {Champion).

B. Antennal leaflets moderately elongated.

PEOCULEJUS.

Proculejus, Kaup, Monogr. der Passal. p. 60.

Kaup gives the antennal leaflets as " short." They are certainly much shorter than
in Proculus, but not so short as in the restricted genus Passalus and its allies. The first
and second leaflets are more than twice the length of the body of the joints, and the
third leaflet is moderately slender.

The leaflets have an extremely finely-shagreened sensitive surface and short pubes-
cence ; in Proculus the surface is sparsely punctured and shining, and the pubescence
very long.

Five species have been described, four from Mexico and one from Ecuador.

§ 1. Marginal interstices of the elytra more or less punctulate and hairy.

1. Procul^us l3revis.

Passalus brevis, Truqui, Eev. & Mag. Zool. 1857, p. 263 \
"^Proculejus brevis, Kaup, Monogr. der Passal. p. 61 ^

Hah. Mexico i, Jacale (Salle), Jalapa (Hoge), Mirador ^ (Dr. Sartorius).

Kaup's P. hrevis is cited with doubt, as he says the mandibles have three apical teeth.
M. Salle's specimens from Jacale, the locality whence came M. Truqui's types, have only
two apical teeth.

2. Proculejus hirtus.

Passalus hirtus, Truqui, Eev. & Mag. Zool. 1857, p. 264 \
Proculejus hirtus, Kaup, Monogr, der Passal. p. 62 ^.

Hah. Mexico ^ (8alle), Huachinango ^ (coll. Mniszech).

PROCULEJUS. o

3. Proculejus truquii.

Proculejus truquii, Kaup^ Harold's Col. Hefte, iv. p. 16; id. Monogr. der Passal. p. 62 '.
Hah. M.-Exico^(coU. Mniszech).

4. Proculejus sartorii.

Proculejus sartorii, Kaup, Harold's Col. Hefte^ iv. p. 17 ; id. Monogr. der Passal. p. 64 \
Eab. Mexico, MimdoT^ (Dr. iSartorius), OaxsiCB, {Y?ij: J., Salle).

A specimen in the Salle collection agrees well with Kaup's description, especially in
the flattened surface of the thorax and elytra and the bidentate apex of the mandibles.
It differs, however, in the much less extent of the punctulate and hairy lateral interstices
of the elytra, the basal portion of the tenth interstice only being so sculptured and
clothed. Kaup describes P. sartorii as having the second, third, and fourth marginal
(i. e. eighth, ninth, and tenth from the suture) interstices punctulate throughout.

5. Proculejus puMcOStis. (Tab. I. figg. 4, 4ff.)

Breviter oblongus ; verticis cornu elongato antice libero et paulluluin elevato, apud basin utrinque tuberculo
subrotundato ; carinis frontalibus vix acutis divaricatis usque clypei tuberculum lateralem extensis ibique
tuberculatis ; clypeo acute marginato, fronte Isevissima ; tborace sicut in P. brevi, sulculis marginalibus
passim angustis, punctatis, foveaque laterali punctulato-pubescenti ; elytris relative quam in hac specie
brevioribus, sed antice medio pauUo minus prominentibus, sulcatis, sulcis subtilius punctulatis ; inter-
stitiis l^-S" latis, planis, 7° angustiori, glabro, 8°-10" punctulato-pubescentibus, 9° angusto subearinato ;
tibiis 4 posticis extus absque spinis.

Long. 28 millim. ; tborax 8, elytra 15 miUim. long.

Hah. Mexico, Orizaba (/S'tt^/e). One example.

Named P. mewicanus, Truqui, in the Salle collection, but evidently in error as it does
not at all agree with Truqui's description. The antennal club has three moderately
long, thin leaflets, as in the other species of Proculejus.

This species diff'ers from the others of this section in the tubercle of the vertex
being prolonged into a long, horizontal, laterally subcompressed horn, and in the frontal
carina being widely divergent and ending in a tubercle very close to a similar clypeal
tubercle over the base of the mandibles. As it resembles in all other characters
P. hrevis, the modification in the armature of the head can scarcely be taken as a generic
character.

§ 2. Eli/tra entirely glabrous.

6. Proculejus championi. (Tab. I. figg. 5, 5«.)

Breyiter oblongus, elytris subovatis, convexus, niger politus ; clypeo lato, carinaque antice et postice sulco laeyi
marginata ; tuberculo verticis parum elevato, compresso-conico, postice late sulcato, apice declm cannisque
frontalibus brevibus divergentibua utrinque in tuberculum validum longe ante clypeum termmatia ; man-

6 PECTINICOENIA.

dibulis apice bidentatis ; thorace relative magno, sulco marginali undique laevi, antice intus dilatato ;
elytris profunde striatis, striis fundo punctulatis, interstitiis omnibus sequalibus.
Long. 30 millim. ; thorax 9, elytra 18 millim. long. • •

Hah. Guatemala, Purula in Vera Paz 4000 feet {Champion).

Very similar to P. brevis, Truqui, in all its proportions and in the sculpture of the
head, the only differences in the latter being that the frontal carinse terminate long
before the sulcus which limits the clypeus ; the horn or tubercle of the vertex is broadly
sulcate behind and the depressed arese are much smoother. The thorax differs in the
dilated sulcus on the anterior margin and the perfectly smooth lateral fovea. The antennal
club has the leaflets moderately elongated and minutely sculptured in both species, and
the lobes of the mentum are very coarsely punctured and hairy. The elytra in both are
almost angularly prominent in the middle of the base, and the basal edge runs obliquely
backwards to the rectangular shoulders. The mesosternum is glabrous and impunctate ;
the flanks of the thorax densely hairy. The legs have only a few hairs ; the middle tibiae
two strong spines, the hinder tibise only one.

Although Kaup gives the punctulate-hairy sides of the elytra as one of the chief
characters of the genus, he admits one species (P. quifensis) which has glabrous sides ;
this may be included in the same section as P. championi, although it differs in some
important particulars.

Several examples, found in the dense humid forest.

OILEUS.

027eMS, Kaup, Monogr. der Passal. p. 58 ; id. ibid. p. 117.

Differs from Proculejus in the tubercle of the head being developed into a long
horizontal horn, with a free tip projecting beyond the edge of the clypeus, and in the
obsolete frontal carinse. The sole species is much larger than the Proculeji, and differs
from them in the slightly impressed elytral strise. The elytra are relatively longer, but
have the same prominence in the middle of the base and rather more obtuse shoulders.

Kaup founded his genus Oileus in his Prodromus (Harold's Col. Hefte, v.) on a
miscellaneous set of species four in number, which he subsequently, in his monograph,
separated into three genera with new names, transferring the name Oileus to a species
which was not included in the original genus. It is perhaps expedient to overlook this
irregularity, as a shifting of the names again, according to the rules of nomenclature,
would only tend to increase the confusion.

1. Oileus heros. (Tab. I. figg. 6, 6«.)

Passalus heros, Truqui^ Hev. & Mag. Zool. 1857, p. 262.
Oileus heros, Kaup, Monogr. der Passal. p.58\

. Hah. Mexico, Huachinango i {Truqui, type in coll. Salle).

OXYaES.— PEOSOCLITUS. t

OXYGES.

Oxijges, Kaup, Monogr. der Passal. p. 69.

. Kaup refers the following two species to this genus.

1. Oxyges Isevissimus. (Tab. I. figg. 7, la.)

Proculejus lavissimus, Kaup^ Harold's Col. Hefte, iv. p. 15.

OcX-y^es /^wmmMSj Kaup, Monogr. der Passal. p. 69 \ , . •

Hab. Guatemala {Wagner'^, Salle).

2. Oxyges IsBvior.

0<r2/^e5 /«mor, Kaup, Monogr. der Passal. p. 70 \
ffab. 1 GuATEMAL A {Wag7ier'^). -.

PROSOCLITUS.

Gen. Proculejo affinis, sed elytris relative longioribus humerisque magis rotundatis. Clypeus flexuosus absque
tuberculis ; frons valde insequalis, medio longitudinaliter usque ad clypei sulcum sulcata ; cornu verticis
latum, basi utrinque tuberculo alaeformi valido, apice liberum, ante apicem cum carinis frontalibus obtusis
confusum, his subrecte usque carinam oculorum extensis. Thorax convexus ; sulculo marginali punctato,
antice intus sat elongate vix dilatato ; fovea laterali Isevi. Elytra elongato-ovata, convexa, medio basi
prominentia, humeris obtusis, basi declive punctulato-pubescenti, lateribus glabris ; punctulato-sulcata,
interstitiis gequalibus sat latis. Tibiae 4 posteriores spina valida.

Differs from all the genera of the section in the shape and position of the cephalic
prominences, and from Proculejus, with which it best agrees and to which it is further
allied by the moderate length of the antennal leaflets, by the much greater relative
length of the elytra.

The clypeus is distinct and separated from the front by a groove as in the allied
genera, but the groove is multiflexuous instead of straight, and, probably in consequence
of the transverse direction of the very obtuse frontal carinse, there is no distinct conical
tubercle at each end of the groove. The metasternum has a patch of coarse punctures
on each side near the apex, its sides have a very narrow punctured groove, and the base
on each side near the middle coxse is punctulate-pubescent. The upper carina of the
intermediate tibiae only has a fringe of hairs, as in Proculejus.

1. Prosoclitus obesus.

Convexus, politus ; labro (sat profunde emarginato), antennis, prothorace, episternis tibiisque postieis fulvo-
hirtis ; prosterno antice opaco, postice polite, convexo, acuminato ; metasterno medio ventreque politissimis ;
thorace subtiliter punctulato, sulco dorsali marginem anteriorem longe baud attingente ; elytris elongato-
ovatis, punctulato-sulcatis, interstitiis sat latis sequalibus. - *

Long. 42 millim. ; thorax 11, elytra 22 millim. long. ' • , ! ,

Eab. Mexico (Peyrolle, coll. Pates).

8 .. PECTIXICOENIA.

TRItENUEGUS.

Gen. Proculejo affinis; differt elypeo quadridentato etc. Oblongus, convexus, elytris relative brevibus undique
glabris, bumeris valde prominentibus. Clypeus quadridentatus, dentibus intermediis inter se valde distanti-
bus ; sulco transverse nullo. Cornu verticis elongatum, apice liberum, una cum tuberculis basalibus validis
liberisque tridentem elevatum horizontalem efficiens ; carinse frontales nullae. Tborax convexus. sulculo
marginali punctato, antice intus paullo dilatato et a margine recedenti. Elytra valde punctulato-sulcata,
interstitiis subconvexis et insequalibus, 7° angustissimo. Tibiae intermediae valide unispinosse spinisque
duabus minutis, carina superior! ciliata ; posticae unispinosse. Antennarum clava longe trilamellata.

In its quadridentate clypeus this genus agrees with Pseudacanthus, Kaup, the typical
species of which I have not seen. The two forms must, however, be generically distinct,
as Kaup says of Pseudacanthus that the antennal leaflets are " ziemlich kurz."

1. TrisBnurgus subopacus. (Tab. I. figg. 8, 8«.)

Sat elongato-ovatus, valde convexus, politus ; elytris fere opacis, valde punctato-sulcatis, interstitiis convexis,
insequalibus, 6° 7°que angustioribus ; thoracis fovea laterali Isevissima ; mesosterno lateribus punctatis ;
metasterno lateribus late punctulato-pubescentibus, apice utrinque plaga grosse punctata.

Long. 36 millim. ; thorax 11, elytra 19 millim. long.

Ildb. Guatemala, Totonicapam (CA^mpio^).

Two examples, found beneath pine bark at an elevation of about 10,000 feet.

C. Antennal leaflets very short.

PSEUDACANTHUS.

Pseudacanthus, Kaup, Monogr. der Passal. p. 73.

Kaup's definition of this genus is not satisfactory, and although I have not seen the
typical species (P. mexicanus) I doubt whether his second species (P. laticornis) can
remain associated with it. His third species (P. aztecus) is certainly not congeneric
with P. laticornis. In the doubt concerning the form of the base of the elytra and the
length of the antennal leaflets of the typical species, it seems advisable to leave
P. laticornis at present in the genus. All the species are from Mexico.

1. Pseudacanthus mexicanus.

Passalus mexicanus, Truqui, Rev. & Mag. Zool. 1857, p. 315 \
Pseudacanthus mexicanus, Kaup, Monogr. der Passal. p. 73, t. 4. f. 1 ^

Hob. Mexico 1, Vera Cruz "? 2.

No specimen of this species has reached us. One named P. mexicanus in the Salle
collection, as before mentioned, is a Proculejus.

2. Pseudacanthus (?) laticornis. (Tab. I. figg. 9, 9a.)

Passalus laticornis, Truqui, Rev. & Mag. Zool. 1857, p. 316.
Pseudacanthus laticornis, K&vip, Monogr. dev Vassal. ^. 74i.
Edb. Mexico ^ Jacale (/S'«//^}.

PSEUDACANTHUS.— PLATYVEEEES. 9

According to the type specimen, which I have examined, this species belongs to the
same section of the family as Froculejus, the base of the elytra being prominent in the
middle ; but the leaflets of the antennae are extremely short. The flanking tubercles
of the horn of the vertex are visible, though short and little elevated. The frontal
carinse and their terminal tubercles are obsolete.

3. Pseudacanthus (?) jalapensis. (Tab. I. figg. 10, lOa.)

p. laticorni similis ; minor, elytris relative brevioribus. Parum convexus, nitidus ; cornu verticis basi lato, apice
elongate libero, tuberculis basalibus sicut in P. laticorni conspicuis, brevibus, pauUo elevatis ; carinis
frontalibus late curvatis, obtusis, in tuberculum ante clypei sutiiram terminantibus ; antennarum lamellis
mediocriter elongatis ; thoracis angulis anticis rotundatis, sulculo marginali undique angusto punctulato,
fovea laterali et lateribus Isevibus ; elytris medio basi parum prominentibus fere rectis, valde punctato-
striatis, glabris, interstitiis subeequalibus ; tibiis intermediis carina superiori in medio gradatim elevata
ibique dense ciliata, bispinosis ; metasterno (juxta coxas intermedias grosse punctato excepto) laevissimo.

Long, 25 millim. ; thorax 6^, elytra 13| millim. long.

Eab. Mexico, Jalapa (Edge).

PLATYVERRES.

Gen. Verves quoad verticis cornu simiUimus ; antennarum lamellae quoque brevissimae. Differt elytris basi
hand sinuatis sed medio leviter rotundatis. Metasternum utrinque vitta depressa angusta apice baud
dilatata punctulato-pubescenti. Labrum late triangulariter emarginatum. Caput Iseve ; clypeus planatus,
utrinque intra labri marginem dente valido apice truncate ; cornu verticis cum tuberculis lateralibus
simul elevato antice tridentato. Thorax magnus, angulis anticis late rotundatis, sulculo marginali laevi
nullomodo dilatato.

Kaup placed the species for which this genus is rendered necessary in his genus
Verres, belonging to his subfamily " Passalinse," and therefore as far as possible apart
from Froculejus, with which undoubtedly lie its true affinities. In the very short
leaflets of the antennse it no doubt resembles the " Passalina3," but this is not more
than a specific character in many of the Old World genera of the family, and cannot
outweigh the form of the base of the elytra and the large size of the thorax. The
parallel-sided and narrow lateral groove of the metasternum is also not unimportant as
an indication of its true place. In Verves and all the allied large " Passalinse " this
groove is broadly dilated behind. In Froculejus and allies it is always narrow, and
sometimes reduced to an impressed line.

1. Platyverres intermedius. (Tab. I. figg. il, ll«, 12.)

Verres intermedius, Kaup, Monogr. der Passal. p. 115 \
Edb. Mexico ^ {Salle, ex coll. Sturm), Juquila (Salle), Misantla (Edge). ,

The type specimen is in the British Museum and has been compared with one of
M. Salle's examples by Mr. C. O. Waterhouse.

A specimen (Tab. I. fig. 12) taken by Herr Hoge at Misantla has a thorax of extra-
BiOL. CENTE.-AMBE., Colcopt., Vol. II. Pt. 2, May 1886. CC

10 PECTINICOENIA.

ordinary size, considerably wider than the elytra. The following are its measurements :
long. Corp. 47 millim. ; thorax long. 12J, lat. 18 millim. ; elytra long. 24, lat. basi 15
millim. The difference between this and the originally described specimen is probably
sexual.

Section II. Elytra relatively long, the base broadly emarginate.
A. Antennal leaflets moderately elongated,

RIMOR.

Oileus (partim)j Kaup^ Monogr. der Passal. p. 60.
Rimor, Kaup^ ibid. p. 119.

Two species are known, both from Central America.

1. Rimor Sagittarius.

Pa55a/MS5fl5^^^/ar^Ms, Smith, Cat. Brit. Mus. Passal. p. 14;, t. 1. fig. 3 \
Passalus rimator, Truqui, Kev. et Mag. Zool. 1857, p. 266'.
Rimor Sagittarius, Kaup, Monogr. der Vassal, ip. 120^.

ir«55. Mexico 1 28 Orizaba (/^«Z/e, spec. typ.).

2. Eimor sargi.

iJmor sar^M, Kaup, Monogr. der Passal. p. 119 \

Hab. Guatemala {Sarg ^), San Joaquin, Cerro Zunil, Duenas (Champion) ; Costa
Rica, Volcan de Irazu (Sogers) . ■ .

TRUQUIUS. *

Elongatus sat depressus. Clypeus quadridentatus, postice sulcato-marginatus ; cornu verticis postice lato, antice
longe et libero, tubereulis basalibus utrinque validis obliquis ; carinis frontalibus brevibus, extus cum rugulis
versus oculi earinam confusis. Thorax relative parvus, angulis anticis baud prominentibus, sulculo
marginali antice dilatato et punctato. Elytra glabra, interstitiis lateralibus vix convexioribus. Tibiae
intermedise extus dense birtse nee spinosse. Metasternum disco baud planatum, lateribus anticis punctu-
lato-pubescentibus, apice utrinque plaga punctata.

A genus rendered necessary for the reception of Passalus (Pseudacanthus) astecus,
Truqui, which differs from the other species in the relatively great difference in length
between the thorax and the elytra.

1. Truquilis aztecus.

Passalus astecus, Truqui, Rev. & Mag. Zool. 1857, p. 314 \ .

Pseudacanthus aztecus, JLsmp, Monogr. der Vassal. T^. 7 4i^.

Hab. Mexico ^ ^, Toxpam (Salle, specimen typ.), Orizaba (Salle), Jalapa (H'dge).

SPUEITJS.— P0PILIU8. 11

SPURIUS.

Spurius, Kaup, Monogr. der Passal. p. 75.

The following is the only species known of this well-marked genus.

1. Spurius bicornis.

Passalus bicornis, Truqui_, Rev. et Mag. Zool. 1857, p. 317 \
Spurius bicornis, Kaup, Monogr. der Passal. p. 75, t. 4. f . 2 ^

Hah. Mexico ^ ^^ Cordova (SallS), Jalapa {Hoge) ; Beitish Hondueas, R. Sarstoon
{Blancaneaux) ; Guatemala, Escuintla, Coban {Champion).

POPILIUS.

Popilius, Kaup, Monogr. der Passal. p. 75.

Kaup enumerates five species under this genus, all from Mexico and Colombia. It is
distinguished by its rather broad flattened clypeus, separated from the front by a fine or
shallow (sometimes indistinct) line, having a tubercle at each end only ; and by the
oblique frontal declivity of the tubercle of the vertex, from the bottom of which spring
the frontal carinse.

The antennal leaflets are moderately elongated, and the genus is not widely distinct
from Soranus of the subsection B.

1. Popilius klingelhoferi.

Oileus klingelhofferi, Kaup, Harold's Col. Hefte, v. p. 5.
Popilius klingelhoferi, Kaup, Monogr. der Passal. p. 76 \

Hah. Mexico ^.

2. Popilius mysticus.

Sat angustus, mediocriter depressus ; tuberculo verticis compresso, tuberculis basalibus latissimis antice verti-
calibiis ; carinis frontalibus apud tuberculi verticis basin baud orientibus sed per lineam longitudinalem
conjunctis ; thorace margine antico utrinque prope angulum sinuato (sed angulis baud acutis), sulculo
anteriori dilatato et punctate, lateribus medio plus minusve punctatis ; elytris punctato-striatis, interstitiis
mediocriter convexis : metasterno basi et vitta lata lateral! depressa, punctato-rugosis, apice utrinque punctis
majoribus paucis vel nuUis ; tibiis intermediis unispinosis carinaque superiori gradatim elevata ciliata.

Long. 25 millim. : tborax 6, elytra 15 millim. long.

Hah. Guatemala, Cubilguitz 1000 feet {Champion), Yzabal {Salle).

Apparently very closely allied to P. klingelhoferi. Kaup, however, does not mention
in his description of that species the remarkable position of the frontal carinse : these
instead of originating at the apex of the central tubercle (which in P. mysticus is almost
vertical, and on nearly the same level as its broad flanking tubercles) commence lower

CC2

12 PECTINICOENIA.

down, and describing a short curve end in a small tubercle long before the clypeal
suture ; at the same time they are joined to the base of the central tubercle by a
longitudinal wheal, which shows traces of being composed of two obscure parallel
keels, and is continued a short distance within and beyond the angle of the frontal
carinse.

Mr. Champion collected a good series of specimens at Cubilguitz, in the low forest-
region of northern Vera Paz.

3. Popilius expositus.

Oileus exposif us, ILsiXip, Harold's Col. Hefte, Y. -p. 4!^.
Popilius ea?positus, Ksixip, M.onogr. Aer Vassal, p. 77 '^.

Hah. MEXIC0P2

4. Popilius granulifrons. (Tab. I. figg. 13, ISa.)

Sat anguste elongato-oblongus, supra planatus ; tuberculis basalibiis latissimis antice verticalibus ; tuberculo
verticis cariniformi, apice valde declivi, carinis frontalibus apud declivitatis basin orientibus, imprimis
usque ad tuberculum parum divaricatis deinde arcuatim usque ad tuberculum validum mandibularem
continuatis ; intra angulum acutum carinarum fovea rotundata polita, deinde fronte granuloso-opaca ;
clypeo piano, vix nitido, medio plus minusve indentato ; tborace lateribus impunctatis, angulis antieis
rotundatis ; elytris dorso planatis, punetulato-sulcatis, interstitiis pauUo convexis, 5°-7'^ angustioribus ;
metasterno convexo, polito, basi utrinque pauciter punctulato, apice utrinque punctis nonnuUis majoribus ;
tibiis intermediis unidentatis, carina superiori gradatim elevata et dense ciliata.

Long. 27 millim. ; thorax 6, elytra 16 millim. long.

Hab. Guatemala, Totonicapam (Champion). Five examples.

Agrees in most points of the description with P. expositus^ but larger (P. expositus is
10"'=22 millim.) and differing in the granulated and opaque lower portion of the
forehead. The usual impressed line separating the clypeus from the front is imper-
ceptible, owing either to the granulate sculpture or to atrophy. Mr. Champion met
with this species in the pine-forest region, at an elevation of about 10,000 feet.

5. Popilius debilis. (Tab. l. figg. 14, 14«.)

Minor et angustior, sat depressus ; tuberculo verticis sicut in P. granulif route, antice valde declivi carinisque
frontalibus apud declivitatis apicem orientibus et flexuose usque ad dentes mandibulares continuatis ;
angulo intra basin carinarum polito, fronte infra granuloso-opaca ; thorace relative parvo, angulis antieis
omnino rotundatis sulculoque anteriore valde dilatato et grosse punctate, lateribus late grosse punc^atis ;
elytris profunde punctato-striatis ; metasterno et tibiis sicut in P. granulifronte.

long. 21 millim.; thorax 4i, elytra 14 millim. long.

ffah. Guatemala, Totonicapam, Capetillo (6%amp^o^^).

Found in company with the preceding species, and also at a much lower elevation
(4000-5000 feet) on the slope of the Volcan de Fuego at Capetillo.

POPILIFS.— STEPHANOCEPHALUS. 13

6. Popilius purulensis.

I*, debili paullo latior, subdepressus ; tiiberculo verticis postice magis dilatato, et antice pauUo producto ; carinis
frontalibus in media fronte orientibus, iitrinque usque ad tuberculum mandibularem continuatis, angulo
intra basin carinarum granulato-opaco ; clypeo piano, polito, sutura nulla ; thorace parvo, angulis anticis
rotundatis, sulculo anteriori dilatato, punctato, fovea laterali punctata ; elytris sat profunde punctato-
striatis, interstitiis subsequalibus ; metasterno eonvexo sequali, postice vix punctato ; tibiis sicut in
precedentibus.

Long. 21 mUlim, ; thorax 41, elytra 13| miUim. long.

Rab. Guatemala, Purula 4000 feet (Champion).

One example only, found in the humid forest-region of Alta Vera Paz.

VINDEX.

Vindex, Kaup, Monogr. der Passal. p. 78.
Founded by Kaup on a single, Mexican, species.

1. Vindex agnoscendus.

Passalus agnoscendus, Percheron, in Gruerin, Mag. Zool. 1841^ t. 78. f. 2 \
Hab. Mexico 1, Jacale, Durasnal, Parada (Salle), Jalapa (H'dge).

2. Vindex sculptilis.

Mediocriter elongatus, sat depressus ; elytris late sulcatis sulcisque eleganter transversim punctatis, interstitiis

5o_9m g^ omnibus versus apicem cariniformibus.
Long. 21 mUlim. ; thorax 5^, elytra 12 millim. long.

Hab, Guatemala, Purula (Champion).

The frontal carinse, as in V. agnoscendus, curve sharply round and end in long teeth
which project over the clypeus and enclose a small semicircular space or fovea; at each
end of the clypeus there is also a large and acute tooth. The metasternum shows no
trace of flattened central plate, but the sides present a rather wide finely punctulate-
pubescent depression.

STEPHANOCEPHALUS.

Stephanocephalus, Kaup, Monogr. der Passal. p. 78.

Two species are included by Kaup in this genus, one from Mexico, the other from
Brazil. I have not seen specimens of either.

1. Stephanocephalus stellaris.

stephanocephalus stellaiis, Kaup, Harold's Col. Hefte, v. p. 8 ; id. Monogr. p. 79 \
Hab. Mexico 1 (coll. Mniszech).

14 PECTimCOENIA.

PAXILLUS.

Paxillus, MacLeay, Horse Entom. i. p. 105 ; Kaup, Monogr. der Passal. p. 80.

Two species are known, both widely distributed in Tropical and Subtropical America.

1. Paxillus leachi.

Paxillus Leachii, MacLeay^, loc. cit. p. 106; Kaup^ loc. cit. p. 80.
Passalus Leachii, Percheron, Monogr. des Passales^, p. 37, t. 3. f. 3.

Hob. Mexico, Cordova, Orizaba, Tuxtla {Salle), Jalapa (Edge); Beitish Hondueas,
Belize [Blancaneaux) ; Guatemala, Capetillo, Zapote, San Isidro, Las Mercedes,
Mirandilla, Calderas, Panima, Chacoj, Cubilguitz, Cahabon, Teleman [Champion);
NiCAKAGUA, Granada {Salle), Chontales {Belt, Janson) ; Panama, Bugaba {Champion). —
South Ameeica to South Beazil.

NELEUS.
iVe/ms, Kaup, Monogr. der Passai. p. 85.
Ninus, Kaup, loc. cit. p. 89.

The characters given by Kaup as distinguishing the two above-named genera are
evidently only of specific value : one is the free apex of the horn or tubercle of the
vertex in Neleus, which varies greatly, and another the median teeth of the clypeus,
approximated and obtuse in Neleus and widely separate and acute in Ninus. The
last-named character does not hold good, specimens of Neleus tlascala var. punctiger
having the teeth as distant and acute as in Ninus inter stitialis.

Seven species are known, distributed throughout Tropical America, north and
south.

1. iN'eleus tlascala. (Tab. I. figg. 15, 15«*)

Passalus tlascala, Percheron, Monogr. des Passales, p. 45, t. 3. f. 5 \

Hab. Mexico \ Tres Marias Islands {Forrer), Cordova, Chiapas {Salle), Jalapa {H'dge) ;

Guatemala, Yzabal {Salle), Cerro Zunil, San Isidro, Zapote, San Geronimo, Chacoj,

Panzos, Lanquin {Champion) ; Nicaeagua, Chontales {Belt, Janson) ; Panama, Volcari

de Chiriqui, Tole {Champion). — South Ameeica to South Beazil and Paeaguat.

Yar. ? N. punctiger, Serv. Ene. Meth. x. p. 20 '; Percheron, 1. c, p. 47, t, 3. f . 6 \ — Magis depressus, elytris

fortius pTinctatis, clypeo dentibus medianis acutis distantibus.
Long. 30-45 millim.

Hah. South Ameeica, Cayenne i, Amazons.

Kaup reunited the two above-named species, whereby the older name, N. punctiqer,
was retained for the form so common in our region. Judging from Amazons examples,
which agree with Percheron's description of N. punctiger, for which he names Cayenne
as the sole locality, the two forms seem to be sufficiently distinct to be treated
as separate species.

* This species is badly drawn; the insect is much flatter than represented by our artist.

NELEUS.— EHODOCANTHOPFS. 15

2. Neleus inter stitialis.

Passalus interstitialis, Eschsclioltz, Nouv. Mem. Moscou, i. p. 13 ; Percheron, Monogr. des Passales,

p. 7S, t. 5. f. 6 ' j Burmeister, Handbuch der Ent. v. p. 484.
Ninus interstitialis, Kaup^ Monogr. der Passal. p. 89.
Passalus acuminatus, Eschscholtz, torn. cit. p. 21, var. minor.

Hah. Mexico, Ventanas {Forrer), Tuxtla, Teapa, Santa Cruz {Salle), Jalapa {Hoge) ;
British Hondueas, K. Sarstoon (Blancaneaux) ; Guatemala, near the city {Salvin),
Zapote, Capetillo, Mirandilla, Pantaleon, San Gerdnimo, Cubilguitz, Panzos {Champion) ;
NiCAEAGUA, Chontales {Janson) ; Panama, Volcan de Chiriqui {Champion). — South
Ameeica, Ecuador, Peru, Amazons, South Brazil i. — Antilles, Cuba.

NELEIDES.

Neleides, Kaup, Monogr. der Passal. p. 87.

Four Tropical-American species are included by Kaup in this genus. Neleides
appears sufficiently distinct by its short frontal carinee, which end in a tubercle before
reaching the straight clypeus.

1. Neleides punctulatus.

Neleides punctulatus, Kaup, Harold's Col. Hefte, v. p. 35 ; id. Monogr. p. 87 \
Sab. Panama 1.

Unknown to me.

RHODOCANTHOPUS.

Ehodocanthopus, Kaup, Monogr. der Passal. p. 90.

Kaup enumerates five species from difierent parts of Tropical America. It is well
represented in our region. The species are of minor size, with strongly sculptured
elytra and generally multispinose outer edge of the middle tibiae.

1. Ehodocanthopus maillei.

Passalus Maillei, Percheron, in Guerin's Mag. Zool. 1841, t. 78. f. 6\
Passalus cognatus, Truqui, Rev. & Mag. Zool. 1857, p. 309 2.
Ehodocanthopus maillei, Kaup, Monogr. der Passal. p. 90.

Hah. Mexico ^ 2, Cordova, Orizaba {Salle, exempl. typic.) ; Nicaeagua, 'Chontales
(Belt, Janson) ; Panama, Volcan de Chiriqui {Champion). — Colombia ^ ; Ecuadoe.

2. Ehodocanthopus spiniger. (Tab. l. figg. 16, 16 a.)

B. maillei proxime affinis ; differt clypeo quadrispinoso, spinis duobus intermediis plus minusve approximatis,
exterioribus valde porrectis, canthisque oculorum bispinosis. Subdepressus, profunde punctato-striatus,
striis 5^-9™ latioribus et transversim punctatis ; tibiis intermediis et posticis extus multispinosis, parce
ciliatis ; thorace lateribus solum sparsim grosse punctatis, aagulis anticis productis.

LoBg. 21-25 millim.

16 PECTINICOEMA.

Hah. Guatemala, Cubilguitz {Champion) ; Nicaragua, Chontales (Janson) ; Panama
Volcan de Chiriqui (C%«mp^o?^). -

Very closely allied to, and probably, only a well-marked local variety of, M. maillei,
which variety, however, does not embrace all the individuals of the localities in which
it occurs. B. maillei in its normal form (clypeus obtusely indented in the middle)
co-exists with it, and some Chiriqui examples show a tendency to bridge over the
difference between the two forms. B. maillei and B. coelatm are related to each other
in a similar way.

3. Rhodocanthopus csBlatus.

Passalus calatus, Erichs. Consp. Col. Faun. Peruan., in Wiegmann's Archiv^ 1847^ p. 112\
Rhodocanthopus ccelatus, Kaup^ Monogr. der Passal. p. 91.

Eab. British Honduras, R. Sarstoon [Blancaneaux) ; Guatemala, El Tumbador, Cerro
Zunil, Capetillo, Calderas, Coban, Panima, Sinanja (Champion); Nicaragua, Chontales
(Janson) ; Costa Rica, Volcan de Irazu (Bogers) ; Panama, Volcan de Chiriqui {Cham-
pion). — South America, Peru i.

4. Rhodocanthopus inops.

Passalus inops ^ Truqui_, Rev. & Mag. Zool. 1857, p. 268 \

Rhodocanthopus morio, Kaup, Monogr. der Passal. p. 91 (= P. morio, Perch.?).

^«5. Mexico 1, Cordova, Orizaba (ySlc?//^).

Kaup refers this species to Passalus morio and P. longulus of Percheron. It does
not at all agree with Percheron's description of either of those species, the former of
which is said to be common in Brazil and the latter to be from an unknown locality.

5. Rhodocanthopus guatemalensis.

Oileus guatemalensis, Kaup, Harold's Col. Hefte, v. p. 6 \
Rhodocanthopus guatemalensis, Kaup, Monogr. der Passal. p. 92.

Hah. Guatemala 1, Tactic, San Geronimo (CA«m^io^).

Pound by Mr. Champion in decaying liquidambar and other trees at Tactic ; and in
the forest on the summit of the Chuacus range of mountains, above San Geronimo ; in
both places at an elevation of about 5000 feet.

6. Rhodocanthopus punctatostriatus.

Passalus punctatostriatus, Percheron, Monogr. des Passales, p. 78, t. 6. fig. 1.
Passalus contractus, Percheron, in Guerin's Mag. Zool. t. 79. f. 2.
Rhodocanthopus punctatostriatus, Kaup, Monogr. der Passal. p. 92.

Hah. Mexico, Orizaba, Vera Cruz, Juquila, Chiquihuite [Salle), Jalapa {Morrison,
Hoge); British Honduras, R. Sarstoon {Blancaneaux); Guatemala, Yzabal {Salle),
near the city {Salvin), Aceituno, Capetillo, Pantaleon, San Isidro, Cerro Zunil, San

EHODOOANTHOPUS.— EPIPHANUS. IT

Geronimo, Purula, Tactic, San Joaquin, Coban, Cahabon {Champion); Nicaeagua,
Chontales {Janson) ; Costa Eica (Bogers) ; Panama, Volcan de Chiriqui {Champion).

7. Rhodocanthopus curtus.

Brevius oblongus, elytris postice pauUo dilatatis, subplanatus ; cljipeo medio obtuse inciso, tuberculo verticis^
parum elevato, tuberculis basalibus obtusis rotundatis ; carinis frontalibus argutis, longe ante tuberculum
mandibularem terminatis sed utrinque cum cantho oculari per carinas obtusas conjunctis ; fronte ocellato-
punctata ; thorace quadrato, angulis anticis subrectis (apice obtusis), sulculo marginal! intus dilatato et
grosse punctato, lateribus (prope angulum) medio foveaque grosse punctatis ; elytris profunde striatis,
striis transversim punctatis, 5"-9™ latioribus ; metasterno medio planato, postice utrinque area depressa grosse
punctata ; tibiis intermediis 2^ S^qiie spinosis et sparsissime ciliatis.

Long. 23 millim. ; tborax long. Q^, lat. 8 millim. ; elytra long. 13f millim.

Hob. Guatemala, Mirandilla {Champion).

PTICHOPUS.

Ptichopus, Kaup, Monogr. der Passal. p. 96.

One of the very few well-marked generic forms in the American series of this family ;
distinguished from all others by the long pointed mandibles and the dilated anterior
tibiae. Only one species is known.

1. Ptichopus angulatns.

Passalus angulatus, Percheron, Monogr. des Passales, p. 84, t. 6. f. 5.
Passalus thoracicus, Smith, Cat. Brit. Mus. Passali, p. 15, 1. 1. f. 3.
Ptichopus angulatus, Kaup, Monogr. p. 96 \

Hah. Mexico \ Minas Viejas {Dr. Palmer), Presidio {Forrer), Jalapa {Edge),
Orizaba, Guanajuato, Vera Cruz {SalU) ; Costa Eica ( Van Patten) ; Panama, Bugaba
{Champion).

EPIPHANUS.

Epiphanus, Kaup, Monogr. der Passal. p. 98.

Kaup includes five species in this genus, which is distributed over a large part of
Tropical America, including the West Indies.

1. Epiphanus binominatus*

Passalus Unominatus, Percheron, in Guerin^s Mag. Zool. 1841, Ins. tt. 77-79.
Passalus occipitalis, Percheron, Monogr. p. 80, t. 6. f. 3 (nee Esehscholtz) \
Passalus erosus, Truqui, Rev. & Mag. Zool. 1857, p. 268 *.
Epiphanus binominatus, Kaup, Monogr. p. 98 (?) ^.

Hab. 1 Mexico 2. — South Ameeica, Brazil ^ ; West Indies, Cuba ^

Truqui includes thi's species in his paper on the Mexican Passali, but only on the
BiOL. cente.-amee., Coleopt., Vol. II. Pt. 2, Mai/ 1886. DD

18 PECTINICOENIA.

strength of a specimen in La Ferte's collection said to be from that country. No
example is contained in the large Mexican collections of M. Salle and Herr Hoge.
Kaup's description differs much from those of Percheron and Truqui.

♦ PHORONEUS.

PAorowew*, Kaup^ Monogr. der Passal. p. 100.

Five species are enumerated by Kaup, viz. four from Brazil and one from Peru.

1. Phoroneus jansoni. (Tab. I. figg. 17, 17 «.)

Elongatus, eonvexus, vix planatus ; clypeo triflexuoso, medio paullo producto ibique obtuse bidentato, denteque
parvo utrinque supra labri marginem, mox pone denies linea impressa ; tuberculo verticis parum elevate,
apice baud libero ; carinis frontalibus brevibus, acutis, Isevibus, longe ante clypeum terminatis ; tborace
angulis anticis produetis, sulculo marginal! omnino Isevi antice intus dilatato, lateribus Isevibus ; elytris
fortiter punctato-striatis, interstitiis subconvexis, G^-Q" paullo angustioribus, omnino glabris ; metasterno
disco planato, lateribus vitta depressa sed omnino impunctato ; prosterno lateribus et tibiis parce birsutis,
his unidenticulatis.

Long. 32 millim.

Hob. NtcaeaguAj Chontales {Belt^ Janson).

This species has the same facies and proportions as TInduUfer incisus, but is not very
closely allied to it generically. In the flattened disc (with sharp postero-lateral edges)
of the metasternum it belongs to the Neleus group, in which its entirely smooth meso-
and metasternum and sides of elytra give it generic distinction. TInduUfer belongs to
a group of genera, with long antennal leaflets, in which the " metasternum " is evenly
convex, and the anterior angles of the thorax rounded instead of advanced, and more or
less acute, as in Neleus and allies. Although the slightly arcuated middle part of the
clypeus shows some approach to the singular form of the same member in Vndulifer,
the absence of spines in the latter constitutes a fundamental diflerence.

UNDULIFER.

Undulifer, Kaup^ Monogr. der Passal. p. 103.

The following is the only recorded species.

I. TJndulifer incisus.

Passalus incisus, Truqui, Rev. & Mag. Zool. 1857, p. 266.
Undulifer incisus, Kaup, loc. cit. p. 104.

Hah. Mexico, Parada, Oaxaca {Salle), Cordova {Hoge).

B. Antennal leaflets short.

SORANUS.

Soranus, Kaup/Monogr. der Passal. p. 107.

Kaup enumerates four Mexican and one Nicaraguan species under this genus. Its
composition is, however, not satisfactory, as it contains species with moderately long
and species with very short antennal leaflets, the former of which have a convex and
impunctate metasternum and obtuse anterior thoracic angles, and the latter the com-
mencement of a discal plate on the metasternum, with its patch of coarse punctures on
its posterior sides, and somewhat produced thoracic angles. They are united only in
the form of the carinas and tubercles of the head, the horn of the vertex being flanked
by broad tubercles, which are vertical in front. Soranus recticornis is closely allied to
Popilius.

1. Soranus haagi.

Passalus Jiaagii, Kaup^ Harold^s Col. Hefte^ iv. p. 21.
Soranus haagii, Kaup, Monogr. der Passal. p. 107\

Hah. Mexico ^ {coll. Haag).

Unknown to me. If, as implied by Kaup originally referring this species to the
genus Passalus, the antennal leaflets are very short, his genus Soranus should be
limited to those species which possess that character, the others, or at any rate S. recti-
cornis, being separated from it. To follow this course without examining his S. haagi
seems, however, unadvisable.

2. Soranus tropicus.

Passalus tropicus, Percheron, Monogr. des Passales, p. 79, t. 7. fig. 4; Truqui, Rev. & Mag. ZooL

1857, p. 312 \
Soranus tropicus, Kaup, Monogr. der Passal. p. 109 ^

Hah. Mexico i ^, Jacale, Puebla {Salle), Jalapa (Hoge).

In this species the antennal leaflets are very short ; the anterior angles of the thorax
rectano-ular with the apex blunted ; the metasternum without distinct discal plate, but
with a slightly depressed patch of coarse punctures on each side.

3. Soranus wagneri.

Passalus wagneri, Kaup, Harold's Col. Hefte, iv. p. 30 \
Soranus wagneri, Kaup, Monogr. der Passal. p. 108, t. 7. f. 2 .

ITah. Guatemala ^ ^ ; Nicaeagua, Chontales {Janson).

In S wagneri the antennal leaflets are very short, the anterior angles of the thorax

DD2

20 PECTINICOENIA.

subacute, the disc of the metasternum and its punctured posterior margins the same as
in S. tropicus.

4. Soranns recticornis.

Passalus recticornis, Burmeister,, Handbuch der Ent. v. p. 508^; Truqui, Kev. & Mag. Zool. 1857,

p. 316'.
Soranus recticornis, Kaup, Monogr. der Passal. p. 108, t. 7. f. 3 '.

Hab. Mexico ^ ^ ^, Orizaba (Salle), Almolonga {Edge), Jalapa [Morrison). ::

The antennal leaflets in S. recticornis are rather longer than in the two preceding
species, but the first is not twice as long as the body of the joint ; the anterior angles of
the thorax are rather obtuse ; the metasternum convex and without trace of shield-
formation or group of coarse punctures.

The middle tibiae have in the middle of the outer edge (not on the upper carina) an
abruptly projecting horny process, a little curled inwards, on which the long hairs are
much denser than on the rest of the edge.

5. Soranus eclipticus.

Passalus eclipticus, Truqui, Rev. & Mag. Zool. 1857, p. 311 ^; Kaup, Harold's Col. Hefte, iv. p. 23.
Soranus eclipticus, Kaup, Monogr. der Passal. p. 108 '.

Hah. Mexico 1 2, Puebla (iS'a^/e) ; Guatemala, Zapote ((7A«mp^o?^).

In this species the antennal leaflets, first and second, are twice as long as the body of
the respective joints, but vary a little in length in different individuals ; the anterior
angles of the thorax are obtuse ; the metasternum without trace of flattened plate or
group of coarse punctures.

6. Soranus championi. (Tab. I. figg. 18, 18^.)

8. ediptico simillinius, sed differt cornu verticis antice valde elongate et libero, horizontaH, postice dilatato ;
tuberculis basalibus transversis antice verticalibus sed baud sicut in S. ediptico culmine sulcatis ; carinis
frontalibus brevibus, obtusis, apice baud tuberculatis ; thorace elytrisqne sicut in ea specie ; metasterno
valde differt, lateribus late punctulato-pubescentibus absque vitta laterali depressa ; antennarum lamellis
brevissimis.

Long. 35 millim.

Mab. Guatemala, Purula (Champion).
One example only.

7. Soranus yucatanus.

S. recticorni similis,,sed major elytrisque relative longioribus ; tibiis intermediis simplicibus (carina breviter
ciliata) unispinosis ; cornu verticis borizontali, basi baud dilatato, apice tuberculo suberecto ; tuberculis
basalibus minoribus, valde depressis, antice baud verticalibus ; carinis frontalibus fere sicut in S. recticorni,
validis, divaricatis, ante tuberculum mandibular em terminatis ; thorace angulis anticis subobtusis, lateribus
impunctatis, sulculo marginali antice profundo intus baud dilatato, punctate ; elytris punctato-striatis,

SORANUS.— PASSALUS. 21

interstitiis subsequalibus, sat planis ; metasterno basi utrinque punctulato-pubescenti, apice utrinque plaga
grosse punctato ; antennarum clava breviter lamellata. . .

Xong. 35 millim.

Hah. Mexico, S.W. Yucatan {Br. Horn, coll. Bates).
One example.

8. Soranus (?) intergeneus.

S. recticorni similis, sed differt clypeo antice deplanato, polito, postice leviter vel baud transversim carinato et
post oarinam linea impressa ; cormi verticis fere sicut in S. recticorni sed apice minus libero et elevato ;
tborace angulis anticis rotundatis, lateribus grosse, et disco plus minusve grosse punctatis, sulculo marginali
antice flexuoso, lato, grosse punctato ; elytris punctato-striatis, interstitiis lateralibus pauUo angustioribus ;
metasterno disco baud planato, basi utrinque punctulato-pubescenti, apice utrinque p arum punctato; tibiis
intermediis extus 1"^ 2'*que spinosis, absque lobo birsuto, carina gradatim paullo elevata et sparsim ciliata.

Long. 21 millim,

Hab. Mexico, Orizaba (Salle) ; Guatemala (Salle).

Five examples. This species bridges over the difference between the genera Soranus
and Popilius, which Kaup places in distinct subfamilies. The antennal leaflets are
somewhat elongated, as in Soranus recticornis and S. eclipticus, and not shorter than
in some species of Popilius. As it agrees so closely in the form and position of the
cephalic elevations with Soranus, it is better left, for the present, in the same genus
as that species, notwithstanding the flattened front edge of the clypeus.

PASSALUS.

PassaluSj Fabricius, Ent. Syst. i. 2, p. 240; Kaup^ Monogr. der Passal. p. 105.

Kaup included four species only in the genus Passalus as narrowly restricted by him.
As the P. Gornutus of the founder of the genus is included among the four, the appli-
cation of the name to the group may be considered as justified, although that species
was not known to Fabricius when he originally treated of the genus, being first
mentioned in his subsequent work, the ' Sy stoma Eleutheratorum.'

1. Passalus cornutus.

Passalus cornutus, Fabr. Syst. El. ii. p. 256 (1805) \

Passalus distinctus, Weber, Obs. Eutom. i. p. 79 (1805) ; Percheron, Monogr. p. 99, t. 7. f. 6 ;
Kaup, Monogr. p. 106, t. 7. f. 1'.

Hah. NoETH America 12. — Mexico 2.

2. Passalus zodiacus.

Passalus zodiacus, Truqui, Rev. & Mag. Zool. 1857, p. 312^; Kaup, Monogr. p. 106.
Hah. Mexico 1, Orizaba (Salle), Jalapa (Morrison).

^^ • PECTINICOENIA.

3. Fassalus cuspidatus.

Passalus cuspidatus, Truqui, Rev. & Mag. Zool. 1857^ p. 313 ' ; Kaup, Monogr. p. 106.

i^^. Mexico ^ . .

4, Passalus striato-punctatus.

Passalus striato-punctatus, Percheron^ Monogr. p. 101, t. 7. f. 7 ; Truqui, Rev. & Mag. Zool. 1857^
p. 311' j Kaup, Monogr. p. 106 2.

Eah. Mexico ^ ^, Cordova [Salle), Jalapa (Edge) ; Guatemala, San Geronimo (Cham-
pion); NiCAKAGUA, Chontales (^6/^).

The antennal leaflets in this species are much more elongated than in P. cornutus and
P. zodiacus, but they vary in length in different individuals, the first leaflet being
sometimes more than twice the length of the body of the joint.

VETUEIUS.

Veturius, Kaup, Monogr. der Passal. p. 110.

Kaup includes in this genus five species from various parts of Tropical America.
All are of large size, and distinguished by the anterior margin of the thorax forming in
the middle a rounded lobular projection.

1. Veturius heydeni.

Passalus Heydenii, Kaup, Harold^s Col. Hefte, iv. p. 27.
Veturius Heydenii, 'Kdiw^yM.oTio^.^. 110^.

Hah. Mexico ^

2. Veturius platyrhinus.

Passalus platyrhinus, Hope, Cat. Lucan. p. 28\

Passalus validus, Burm. Handbuch der Entom. pp. 513-518 \

Veturius platyrhinus, Kaup, Monogr. p. Ill, t. 7. if. 4, 4 a^

Hah. NiCAEAGUA, Chontales {Belt, Janson) ; Costa Rica {Salle), Volcan de Irazu
{Rogers) ; Panama, Volcan de Chiriqui, Bugaba {Champion). — South America, Colom-
biai23.

This species varies in length, from 32 to 52 millim. ; in the depth of the elytral striae ;
and in the rugosity of the remarkably broad and deep sulci on the lateral margins of
the thorax. One small example from Costa Eica has quite faint elytral striae.

VETTJEIUS. — VEEEES. 23

3. Veturius cirratus. (Tab. l. figg. 19, 19 «.)

Pro hoc genere gracilis, elytris subopalescentibus ; cornu verticis horizontali infra apicem carinas frontales ante
clypenm in tuberculum terminatas emittente; labro apice fere recto; tborace antice medio brevissime
lobulato, angulis anticis minus obtusis, sulco marginali apud latera et antice sat dilatato-punctato ; elytris
humeris fulvo barbatis, striis concinne transversim punctatis, interstitiis convexis, 5°, 7° et 9° angustioribus ;
tibiis 4 posticis biseriatim sat longe ciliatis; metasterno vitta depressa laterali apice dilatata basique
utrinque punctulato-pnbescenti.

Long. 33 millim.

Hah. Panama, Volcan de Chiriqui, Bugaba {Champion).

A large number of examples. Distinguished from aU other species of the genera
more immediately allied to the restricted genus Passalus, by the hairy shoulders of the
elytra. In all other essential characters it agrees with V. platyrhinus ; but the cephalic
horn, instead of being conicaHy elevated anteriorly, lies nearly fiat, its flanking tubercles
being depressed and obtuse ; from the elevated tubercle terminating the frontal carinee
two ridges diverge to the side of the ocular canthus, and enclose a deep pit. The
middle tibiae are unispinose. The milky or subopalescent gloss of the elytra, strongly
marked in unworn specimens, is a striking feature. The entire lateral margin of the
thorax is visible from above, and not concealed by the convexity of the limb as in
F. platyrhinus.

SERTOEIUS.

Sertorius, Kaup, Monogr. der Passal. p. 114.

One species only of this genus is recorded. It agrees with Veturius and Verres in
the metasternum having a rather broad shallow punctulate-pubescent groove, much
dilated behind, on each side ; but differs from Veturius in the anterior margin of the
thorax being normal, and from Verres in the flanking tubercles of the horizontal
cephalic horn being basal and depressed.

1. Sertorius agassizi.

Sertorius agassizi, Kaup^ Monogr. p. 114\

Hab. Guatemala 1 (Salle), Capetillo (Champion).

VERRES.

Verres, Kaup, Monogr. der Passal. p. 114.

Four Tropical- American species were included in this genus by Kaup, of which
three were from Mexico or Central America. One of these, V. intermedius, had little
in common with the rest and forms the new genus Platyverres, dealt with in Section I.
The new species described below restores the number to four. Verres as now restricted

24 PECTINICOENIA.

may be known by the deeply emarginated and excavated labrum, and the form of the
cephalic horn, which is elevated together with its closely-blended flanking tubercles.

1. Verres corticicola.

Passalus corticicola, Truqui, Rev. & Mag. Zool. 1857, p. 310 ' ; Kaup, Harold's Col. Hefte, iv. p. 34.
Verres corticicola, Kaup, Monogr. p. 115, t. 7. f . 7 ^.

Hah. Mexico ^ ^, Cordova {Salle) ; Guatemala, Yzabal (Salle), Cubilguitz, Coban, San
Joaquin, Tactic (C%«mJ)^o^) ; NiCAEAGUA, Chontales (J«^so?^).

2. Verres hageni.

Fer/e* jHfl^emi, Kaup, Monogr. der Passal. p. 116^

ffab. Mexico, Jalapa (Edge); Guatemala i, Capetillo (Champion); Nicaragua,
Chontales (Janson); Costa Eica (Salle, Van Patten).

3. Verres cavicollis. (Tab. I. figg. 20, 20 a.)

V. furcilahro affinis, labro apice profunde exeiso et supra profunde et longe excavato ; sed differt thoracis
siilculo marginaK antice utrinque in foveam latissimam hand profundam dilatato; clypeo antice valde
flexuoso medioque profunde emarginato ; cornu verticis cum tuberculis lateralibus consolidato, antice
tricuspidato, dente mediano prolongato libero ; carinis frontalibus a cornu separatis, arcum transversum
parum curvatum efficientibus utrinque in tuberculum longe ante clypeum terminatum; metastemo
punctulato-pubescenti, medio solum glabro, lateribus vitta punctulato-pubescenti, postice valde dilatata
depressa, plagaque grossius punctata utrinque juxta apicem.

Long. 37 millim. ; thorax 9, elytra 20 millim. long.

Hah. Mexico, Jalapa (Hbge).

MEGATHOPA. 25

Tribe LAMELLICORNIA.

In dealing with this great and important tribe of Coleoptera, the described species of
which from all parts of the world cannot now be fewer than 10,000, I have found it
convenient to follow, with but slight modifications and omitting the main divisions
founded on the situation of the abdominal spiracles, the classification given in the
third volume of Lacordaire's ' Genera.' The tribe has been considered by eminent
entomologists to be the most highly organized of the entire order. The " Lamelli-
cornia " are further remarkable as being more sharply severed than most others from
the nearest allied tribes : thus the plan adopted in the " Carabidse " and " Longicornia"
of the present work, of beginning with the least specialized forms (or those which show
traces of approach to other tribes), is here impracticable, as no connecting links have
been discovered. There are, nevertheless, numerous genera which exhibit characters
intermediate between those of the chief Families composing the Tribe ; such genera
were included by Lacordaire in his ' Orphnides,' ' Hybosorides,' ' Glaphyrides,' and
some of the earlier groups of his ' Melolonthides ; ' and it would perhaps be an improve-
ment to displace these genera from the position he assigned to them and make them
the starting-point of the classification of the whole tribe, taking afterwards in succession
the larger families which radiate from this common root of the whole. But this course
could not be taken with advantage in a Faunistic work; it is a task for a future
Monographer, and will entail a careful study of numerous aberrant genera from
various parts of the world, many of which are isolated forms and rare in collections.
For the present I have taken the relations of the ligula to the mentum as offiering a
better main division of the Tribe than the position of the abdominal spiracles.

Subtribe I. Ligula distinct from the mentum.

Fam. COPEIDiE.

MEGATHOPA.

Megathopa, Eschscholtz, Entomogr. p. 34 (1823) ; Naturwiss. Abhandl. aus Dorpat, i. p. 90 (1823) ;
Lacordaire, Gen. Col. iii. p. 75.

Thirteen species of this genus have been described, more than half belonging to
temperate South America, the rest spread over the tropical zone as far north as
Yucatan.

1. Megathopa yucateca (Tab. ii. fig. i.)

Megathopa yucateca, Harold, Ann. Soc. Ent. Fr. 1863, p. 173'.

Edb. Mexico, Yucatan i, Merida {Salle), Tapachula in Chiapas {Edge),
BIOL. CENTE.-AMEE., Coleopt., Vol. II. Ft. 2, May 1887. EE

■ -IP'

26 LAMELLICOENIA.

2. Hegathopa candezei. (Tab. ii. fig. 5.)

Megathopa candezei, Harold^ Col. Hefte, xi. p. 102 \

Hah. NicAEAGUA, Chontales ^ {Belt, Janson) ; Panama, Volcan de Chiriqui (Cham]pion).

An example from the Volcan de Chiriqui is figured.

CANTHON.

Canthm, Hofiinansegg, Wiedem. Zool. Mag. i. 1, p. 38 (1817) ; Harold, Monogr. in Berl. ent.

Zeitschr. 1868, p. 1.
Coprohius, Latreille, Regne Anim. ed. 2, iv. p. 535 (1830) ; Burmeister, Stett. ent. Zeit. xxxiv.

p. 410 (1873).

Like Megathopa an exclusively American genus, extending in the north to the 41st
parallel of latitude and to about the same distance from the equator in the south, the
species being most numerous and varied in the equatorial subzone. 135 species have
been described.

1. Canthon sallsei. (Tab. Ii. fig. 2.)

Canthon sallei, Harold, Ann. Soc. Ent. Fr. 1863, p. 174^; Berl. ent. Zeitschr. 1868, p. 39^.

Hah. Nicaeagua, Granada ^ {Salle), Chontales {Belt, Janson) ; Costa Kica ( Van
Fatten); Panama {Boucard), Taboga Island {Champion). — South Ameeica, Colombia 2.

Two Nicaraguan examples in the Salle collection are labelled " type " : these agree
in colour v^^ith Harold's original description of the species, but not with the subsequent
one given in his 'Monograph.' The species seems to be represented in Nicaragua by
one constant varietal form, in which the upper surface is shining testaceous-red, with
the head, a narrow basal margin to the thorax and elytra, and the suture of the latter,
dark brassy ; the under surface and legs brassy-black, with the abdomen (except its
basal and apical margins) and pygidium testaceous-red. In Costa Rica the local form
is similar, except that the thorax has a broad brassy-black central vitta (sometimes
interrupted in the middle), and the basal and sutural brassy-black borders of the elytra
are more or less (sometimes very greatly) dilated. Examples from Panama and Taboga
Island again differ, the thoracic vitta being narrower and dilated in the middle, the
abdomen wholly black, except the pygidium (which is yellow with a dark central line),
and the hind (and sometimes also the middle) femora testaceous-yellow in the middle.

In the form or forms described by Von Harold in his ' Monograph,' who, according to
his habit, does not say to which of the numerous localities they refer, the colours are
*' piceus, thorace leviter virescente maculis quatuor in angulis dispositis testaceis, vel
omnino piceo vel rufo, elytris nigris interdum rufo-signatis."

A Nicaraguan specimen is figured.

CANTHON. 27

2. Ganthon speciosus.

Canthon speciosus, Harold^ Berl. ent. Zeitschr. 1868^ p. 41\

Hah. Mexico ^ ; Guatemala, Cubilguitz, Teleman (Chamjpion).

3. Canthon spinosus.

Canthon spinosus, Harold, Ann. Soc. Ent. Fr. 1863, p. 174'; Berl. ent. Zeitschr. 1868, p. 43 ^
Rab. Mexico, Toxpam {SalU ^), South Mexico ^.

Von Harold described this species originally from specimens taken by Salle at
Toxpam, and subsequently redescribed it from examples from Southern Mexico in
Bonvouloir's collection. In the Salle collection there are no specimens from Toxpam,
and those labelled C. spinosus (from Tuxtla, Playa Vicente, and Cordova) seem to agree
better with the description of C. speciosus than with that of C. spinosus. One, however,
from Sturm's collection, seems to be intermediate between the two species ; so that it is
possible they form really only one. It is to be remarked that Von Harold described
his C. speciosus at a subsequent date, when he appears not to have had the type
specimens of his original C. spinosus before him.

4. Canthon septem-macnlatus.

Ateuchus septem-maculatus, Latr., in Humboldt & Bonpland, Obs. Zool. i. p. 180, t. 17. f. 5
, (1811) \
Canthon septem-maculatus, Harold, Berl. ent. Zeitschr. 1868, p. 51 ^

Hah. Panama (Boucard), David, Tole (Champion). — South Ameeica, Colombia i ^.
The typical form as described and figured by Latreille alone occurs in our Fauna.

5. Canthon moniliatus. (Tab. II. fig. 3.)

C. rufulo affinis, late ovatus, subintidus, elytris castaneis utrinque striis octo distanter et eleganter punctulatis ;
eapite seneo, clypeo bidentato et prope dentes utrinque breviter recte truneato ; thorace flavo-testaceo,
medio juxta margines anticum et posticum seneo plagiato ; subtus pedibusque nigro-nitidis, femoribus
medio albo-testaceis.

Long. 6-7 millim.

Hah. Panama, Bugaba (Champion).

Far. Thorax flavus, macula unica nigro-senea juxta marginem posteriorem. • f l

Hah. NiCAEAGUA, Granada (Salle).

Belongs to the C. triangularis group, and the subgroup C. rufulus, in which the sides
of the presternum are without transverse carina and the hind femora ungrooved near
their anterior edge. The thorax is rather strongly but obtusely angulated in the middle
of its sides, and the seventh and eighth elytral striae are obliterated on the humeral
callus. The pygidium is dull reddish, opaque, and faintly carinated down the middle.
The legs are blackish or castaneous, with the middle (and greater part) of the femora
^ ' ' ' EE2

^8 LAMELLICOENTA.

very pale testaceous. In well-developed examples the thorax has a strong golden-
brassy tinge.

C. moniliatus may be distinguished from the nearly-allied C. sexspilotus, Guerin, and
other neighbouring species, by the fine but sharply impressed elytral striae, in which are
small and distinct but distant punctures. The variety is labelled in the Salle collection
" C. cyanocephalus, Har., type." It was probably named so by Von Harold on being
communicated to him after his Monograph was published, as no mention is made of the
specimen, nor is the locality Nicaragua given by him under C, cyanocephalus, which is
stated to be from " Cayenne, Orinoco, and Guiana." The Nicaraguan insect does not
correspond at all with Harold's description.

6. Canthon femoralis. (Tab. 11. fig. 7.)

Coprobius femoralis, Chevr. Col. Mex. Cent. i. no. 74 (1834)\ *

Canthon femoralis, Harold, Berl. ent. Zeitschr. 1868, p. 62^
Canthon ochropus, Harold, Col. Hefte, i. p. 79 (1867).

Eah. Mexico ^ '^, Cordova, Santecomapan, Teapa (Salle), Juquila, Tapachula in
Chiapas {Edge) ; Beitish Hondueas, Eiver Sarstoon (Blancaneaux) ; Guatemala,
Coban, Zapote, Mirandilla (Champion); Costa Rica 2.

Belongs to a numerous group of the genus, not indicated in Von Harold's Monograph,
in which the robust hinder tibiae are straight on their inner side and strongly arcuated
on their outer edge ; generally also they are thickened and calf-like. I find that the
sexual difierence in the pygidium is the same as described by Von Harold in C. angus-
tatus, this segment being remarkably short and convex ; but the male anterior tibiae are
broad and tridentate (with broad and notched apical spur), and not elongated and
bidentate as in C. angustatus. An example from Juquila is figured.

7. Canthon angustatus. (Tab. II. fig. 4.)

Canthon angustatus, Harold, Col. Hefte, i. p. 79 (cJ) ; Berl. ent. Zeitschr. 1868, p. 63 (S ? )^
Hah. NicAEAGUA, Chontales (Belt, Janson); Costa Rica^. — South Ameeica, Colombia i.

8. Canthon euryscelis. (Tab. II. fig. 6.)

IBreviter ovatus, supra (praecipue thorace) convexus, politus, niger, interdum capite et apice castaneis ; clypeo
bidentato ; thorace medio utrinque angulato et antice arcuato denticulatoque ; elytris Isevibus ; tibiis
4 posticis latissimis, subcompressis, extus valde arcuatis, vix bicarinatis nee inter carinas sulcatis pro-
sterno transversim carinato ; pygidio nitido.

S . Tibiae anticae latae, dentibus validis tribus approximatis, calcare apicali apice valde furcate ; pygidio convexo.
5 . Tibiae sicut in S > sed calcari apicale acutissimo ; pygidio sat elongate, vix convexo.

Long. 4|-5| millim.

Hal. Mexico, Cordova, Playa Vicente, Oaxaca (Salle) ; Guatemala (coll. Bates) ;
Manama, BugehEi (Champion).

Belongs to the same group as C. femoralis, C, angustatus, C. nitidicollis, C. smiiopacus.

CANTHON. 29

€. quadriguttatus, C. suhhyalinus, Sec, but shorter in outline than in the larger species
of the group, and showing only a slight narrowing behind. In the feeble carinse and
absence of groove along the outer edge of the posterior tibiae it agrees with C. sub-
hyalinus, C. quadriguttatus (Oliv.), and C. femoralis. The clypeus has two sharp
triangular approximate teeth, and is rounded on each side immediately from the base
of the tooth, showing a slight but sharp projection at the suture of the gense. There is
a strong sutural depression at the base of the elytra, which does not extend to the thorax.
Immature specimens are glossy pale castaneous.

9. Canthon lamprimus. (Tab. II. fig. 8.)

Breviter ovatrus, supra (prsecipue thoraee) convexus, politissimus, nigro-cyaneus vel eupreus, pedibus rufo-

testaceis ; clypeo bidentato ; thorace medio utrinque angulato et antice valde arcuato dentieulatoque ;

elytris vix perspicue striatis ; tibiis 4 posticis subcompressis, extus arcuatis, acute bicarinatis, et inter

carinas sulcatis ; prosterno transversim carinato ; pygidio sericeo.
S . TibijB anticje latae, dentibus 2 inferioribus approximatis, 3" superiore distanti et multo minora, calcare apicali

lato, apice angulariter emarginato.
Long. 5-5^ millim.

Hah. Panama, Tole, San Miguel in the Pearl Islands {Champion).

Allied to C. euryscelis, but more glossy and metallic, and hind tibiae distinctly less
dilated. A further distinguishing character lies in the anterior tibiae, in which the
upper tooth is small and distant from the two lower ones, whilst in C. euryscelis all three
are large and equally close together. The clypeus is not so evenly rounded on each
side from the base of the teeth, but is flexuous, and the sharp denticle at the lateral
suture is more prominent. The angular dilatation on the side of the thorax is unusually
sharp, and the vertical arcuation of the side in front of the angle very highly developed ;
the hind angles of the thorax are prominent and acute. The base of the elytral suture
is depressed, and the humeral callus free from traces of striae.

Four examples. The single specimen from Tole is brilliant red-coppery, the others
bluish-black ; the former is figured.

10. Canthon caelius.

G. lamprimo proximo affinis, forsan ejus varietas, sed differt elytris subopaeis nigro-cyaneis distincte striatis ;

capite thoraceque seneo-cyaneis politissimis, subtilissime punctulatis; pedibus piceo-rufis, femoribus

metallicis ; pygidio sericeo punctulato ; csetera sicut in C. laTnprimo.
Long. 5 1 millim.

Hab. Panama, David (Champion).

The outline and dentition of the clypeus are exactly as in C. euryscelis, and also as in
the common North-American C. viridis, from which the straight and simple inner edge
of the anterior tibiae amply distinguish both the similar Panama species. The form of
the thorax is also the same as in C. lamprimus, but the surface is finely punctulated,
whilst under the same power that of C. lamprimus appears perfectly smooth ; the elytra

30 LAMELLICOENIA.

differ in being silky opaque— a little more shining near the suture, and the striae^
though very shallow, are much more distinct. The thorax is dark brassy-green, with
a brilliant golden-coppery tinge on the disc. The upper tooth of the anterior tibiae i&
small and distant from the two lower teeth, and the hinder tibiae are sharply bicarinate
down their outer edges and grooved between the carinse, as in C. lamprimus.

11. Canthon raripilus. (Tab. II. fig. 9.)

Parvus, rotundatus, nitidus, viridi-cyaneus, passim (ventre excepto) sat grosse discrete punctatus, punctis griseo-
piliferis ; clypeo oblique angustato, bidentato ; thorace minus convexo, medio utrinque acute angulato et
antice arcuato denticulatoque ; elytris subtilissime striatis ; pygidio nitido ; prosterno transversim carinato ;
tibiis 4 posticis mediocriter dilatatis, extus arcuatis ; tibiis antieis apice truncatis, dente superiore remoto-
et minore.

Long. 3-4| millim.

Eah. Panama, Taboga Island, San Miguel in the Pearl Islands (Champion),

Apparently closely allied to C. juvencus, Harold, but difi'ering in the shining pygidium
studded with large piliferous punctures; in C. juvencus the pygidium is described as
" opacum, Igeve." The species belongs to the same group as the preceding and to the
subgroup having sharply bicarinate and grooved outer edge of the posterior tibiae.
The scutellar depression is very slight. The punctures on the head and thorax are
large and equally distributed ; on the elytra they are rather smaller and arranged in
two rows along each interstice.

12. Canthon viridis.

Copris viridis, Beauv. Ins. Afr. et Am. p. 23, t. 3. fig. 2 (1805) \

Onthophagus viridicatus, Say, Best. Journ. Nat. Hist. i. p. 173 (1835)'; Complete Writings, ii. p. 648.
Canthon viridis, Harold, Berl. ent. Zeitschr. 1868, p. 112'; Horn, Trans. Am. Ent. See. 1870,
pp. 44&47^
Hob. NoKTH Ameeica 1 2 3 4^ — MEXICO ^, Cordova, Orizaba, Etla, Cuernavaca, Yolo-
tepec, Parada {Salle\ Ventanas, Mexico city, Iguala, Cerro de Plumas, Acapulco,
Tapachula {E'oge), Tehuantepec (Sumichrasf) ; Beitish Hondueas (Blancaneaux) ;
Guatemala, Duenas, Capetillo, Cahabon, Teleman, Panzos {Champion); Nicaeagua,
Granada [SalU), Chontales (Janson) ; Centeal Ameeica *.

Of similar general form and colours to C. cmlius and its allies, and agreeing with them
in the arcuated outer edge of the posterior tibiae, but these organs are scarcely so broadly
dilated. It is distinguished, however, from the group by the anterior tibiae being
abruptly dilated on the inner side from before the middle to the apex. Von Harold
admits a wide range of variation within the species ; and it is, in fact, impossible to
detect valid differences between violet-coloured impunctate Mexican examples 7 millim.
long, and brassy-green North-American specimens only 4 millim. long. The small
bright green form, moreover, co-exists with the large examples of the violet and blue-

CANTHON. SI

black variety in various Mexican localities. In all the varieties the elytra are less
bright than the head and thorax, as Harold expresses it " nitidulus, elytris minus
nitidis." The following form, in which the elytra are highly polished throughout, is^
doubtless, therefore, different, although exhibiting the same peculiar shape of the anterior
tibiae.

13. Canthon championi.

<?. viridi proxime affinis, major, undique politissimus, viridi-cyaneus ; capite lasvi, clypeo bidentato et utrinqne
flexuoso, genarum angulo acuto ; thorace subtilissime punctulato vel Isevi, lateribus ante medium valde
angulatis et antice arcuatis baud denticulatis ; elytris vix striatis ; prosterno transversim carinato ; tibiis
anticis intus ante medium subito et valde dilatatis, apiee recte truncatis, extus dente superiore minore et
remote ; tibiis posticis parum dilatatis, intus rectis, extus arcuatis, bicarinatis et parum profunde sulcatis.

c? . Tibiae anticee caleare acuto basi lato et dentato.

Long. 6|-7| miUim.

Eab. Guatemala, Senahu (Champion).

14. Canthon politns.

€anthon politus, Harold, Berl. ent. Zeitschr. 1868, p. 60 \
Hah. South Mexico ^. — South Ameeica, Colombia i.

I have not seen an example of this species from Mexico or Central America.

15. Canthon forreri. (Tab. II. fig. 10.)

G. prolo proxime affinis, ^neo-viridis, supra subtiliter alutaceus, thorace nitidiore elytrisque subopacis ; capite
et thorace discrete punctulatis ; clypeo crebre ruguloso-punctato, 4-dentato, angulisque genarum prominulis
obtusis ; elytris distincte striatis, stria humerali subtiliter carinulata, interstitiis guttulis nitidis conspersis.

Long. 6 miUim.

Hah. Mexico, Presidio {Forrer).

Distinguished from its nearest allies by its rich dark green colour, and brilliant
thorax covered with scattered punctures. In sculpture it comes nearest C. prohus.

16. Canthon nyctelius.

0. puncticolli (Lee.) proxime affinis, nigro-violaceus, undique alutaceo-opacus et guttulis nitidis conspersus ;
capite punctulato, clypeo reflexo, sicut in G. proho 6-dentato ; thorace opaco, subtiliter sparsim punctulato,
medio basi elytrisque regione scutellari profunde depressis ; elytris hand profunde exarato-striatis, stria
humerali carinulata, interstitiis baud punctatis, 2° et 3° basi tumide elevatis ; pygidio punctulato ; corpora
subtus pedibusque nigris nitidis, ventro alutaceo, femoribus posticis setifero-punctatis tibiisque apice uni-
calcaratis.

Long. 4-6 1 millim.

Hah. Mexico, Santa Clara in Chihuahua, Chihuahua city, Durango city (Edge),

Distinguished from C. puncUcolUs by the remarkable depression at the base of the
thorax and elytra, and the corresponding elevation of the second and third elytral
interstices at their base. The whole upper surface (including the pygidium) is smoothly
=and evenly alutaceous and opaque, sprinkled with fine punctures, except the elytra.

32 LAMELLICOENIA.

17. Canthon praticola.

Canthon praticola, Leconte, Col. of Kansas and Eastern New Mexico, p. 10 ' ; Horn, Tr. Am..
EntSoc. 1870, pp. 44,45 ^
Hah. NoETH Ameeica, Kansas i ^.—Mexico, Santa Clara in Chihuahua, Chihuahua
city, Villa Lerdo in Durango (Edge),

Dr. Horn gives the size of the North- American form as 6J-9J millim. The North-
Mexican examples vary from 8-11 millim. In other respects the latter agree closely
with Dr. Horn's description and with numerous examples from Colorado (?) in my
collection.

18. Canthon IsBvis.

Scarabceus laevis, Drury, 111. Exot. Ins. i. p. 79, t. 35. f. 7\

Scarabaus volvens, Fabr. Ent. Syst. i. p. 66.

Ckmthm lavis, Harold, Berl. ent. Zeitschr. 1868, p. 99 ; Horn, Tr. Am. Ent. Soc. 1870, pp. 45 & 47 \

Hah. NoETH Ameeica ^ 2, — Mexico, Monclova in Coahuila {JDr. Palmer), Nuevo
Laredo in Tamaulipas, Villa Lerdo in Durango, Zacualtipan in Hidalgo, Monterey
(Hdge\ Orizaba {Salle).

Herr Hoge obtained a good series of examples, all black with a scarcely perceptible
greenish tinge, and rather smaller (12-16 millim.) than the typical form of the middle
Atlantic States. The single specimen from Orizaba is very small (10 millim.).

19. Canthon hidalgoensis.

C. IcBvi proxime affinis, sed minor et brevior, granulis minutissimis hand elevatis densissime conspersus. Niger,

vix obscure viridi tinctus.
Long. 8-12 millim. c? 2 •

Hab. Mexico, Zacualtipan in Hidalgo, Aguas Calientes city (Hoge).

The granulation is so fine that to the naked eye the insect appears smooth. The
granules on the thorax are reduced to minute shining specks without elevation, the
interstices between which are finely alutaceous. Eare examples with the granules on
the elytra more elevated tend to bridge over the difference between this species and the
North-Mexican form of C. Icevis.

All the numerous examples, with the exception of one from Aguas Calientes, were
taken at Zacualtipan.

20. Canthon circulatus.

Canthon circulatus, Harold, Berl. ent. Zeitschr. 1868, p. 72*.
Eah, Mexico 1.

Our collections do not appear to contain this species.

CAJSTTHON. 33

21. Canthon aequinoctialis.

Canthon (squinoctialis, Harold, Berl. ent. Zeitschr. 1868, p. 79 \

Eab. NiCAEAGUA, Chontales (Belt); Paitama, Bugaba, David (Champion) —Sotjtr
Ameeica, Colombia ^, Amazons.

Central-American differ from South-American examples only in being smaller
(11 millim.), the latter varying little from 14 millim.

22. Canthon lituratus. (Tab. II. fig. 12, var.)

Ateuchus lituratus, Germar, Mag. Ent. i. p. 117.

Canthm lituratus, Perty, Del. Anim. Artie. Brasil. p. 38, t. 8. f. 4 ; Harold, Berl. ent. Zeitschr. 1868,

p.95\
Var. Canthon qmdripustulatus, Guerin, Verh. zool.-bot. Ver. Wien, v. p. 587^; Harold, 1. c.p. 95.

Eab. Panama, near the city, Volcan de Chiriqui 2500-4000 feet (Champion).— Soum
Ameeica, Colombia to Patagonia ^, Ecuador ^.

All the Chiriqui examples belong to a well-marked variety, nearly agreeing with
Guerin's description of C. quadripustulatus from Ecuador. It is larger than the typical
C. lituratus ; and the elytra instead of having the peculiar and characteristic design of that
common South- American form are silky-black with two large quadrate orange spots on
each (sometimes united on the lateral border), one below the humeral callus, and
one covering the apical callus. The antennoe are darker in colour. The oblique
position of the dorsal carina along the posterior tibise and the form of the clypeus are
the same as in typical C. lituratus.

, 23. Canthon gagatinus.

Canthon gagatinus, Harold, Ann. Soc. Ent. Fr. 1863, p. 173; Berl. ent. Zeitschr. 1868, p. 102 \
Var. Canthon amethystinus, Harold, Ann. Soc. Ent. Er. 1863, p. 173 ; Berl. ent. Zeitschr. 1868,
p. 103'.
Hah. Mexico i ^, Northern Sonora (Morrison), Puebla, Orizaba, Durasnal, Cuernavaca,
Parada, Capulalpam, Guanajuato (Salle), Mexico city (Flohr), Chihuahua, Colima city,
Morelia, Jalapa, Las Vigas, Einconada, Zapotlan in Colima, Chilpancingo (Edge);
Guatemala, San Geronimo (Champion).

The dull black and the shining dark indigo-blue forms of this common species occur
together in various localities in Mexico, and at San Geronimo, Guatemala. Von Harold's
third variety " obscure glauco-viridis " appears to be rare.

24. Canthon chevrolati.

Canthon chevrolati, Harold, Berl. ent. Zeitschr. 1868, p. 119 \

Eab. Mexico S Northern Sonora (Morrison), Pinos Altos in Chihuahua (Buchan-
Eephurn), Ventanas, Presidio [Forrer), Campeche in Yucatan, Vera Cruz, Cordova,

BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, May 1887. FF

34 LAMELLICOENIA.

Toxpam, Jalapa, Matamoros Izucar, Parada, Orizaba, Guanajuato, Panistlahuaca
{Salle), Jalapa, Sayula, Misantla, Vera Cruz, Oaxaca, Rinconada, Cholula, Acapulco,
Mazatlan, Tapachula (Hoge), Mexico city (Flohr), Tehuantepec (Sumichrast) ; Guatemala
(Salle), San Geronimo, Pantaleon, Mirandilla (Champion) ; Nicaeagua, Chontales (Belt).

Varies in size from 7 to 12 millim. ; in colour from brilliant brassy-green and golden-
coppery to bluish-green, violet, and deep black. In northerly localities the elytra are
much less glossy. A small rotundate ovate form, with pygidium only slightly convex
even in the male (C. chloris, Salle coll.) occurs in various localities in Mexico.

25. Canthon mutabHis, (Tab. ii. fig. ii, var.)

Canthon mutabile, Lucas, in Voy. de Castelnau, Zool. iii. p. 100 \
Canthon mutahilis, Harold, Berl. ent. Zeitschr. 1868, p. 127 ^.

Hah. Panama, Bugaba, Volcan de Chiriqui, Tole (Champion). — South Ameeica^,
Colombia ^, Amazons ^ ^, La Plata ^.

The Panama examples form a local variety of the species similar to the var. tranS'
versalis described by Von Harold, but differing in the bright brassy-green head and thorax.
In Colombia the local form is similar, with the exception of having a brassy-black
head and thorax. Some examples from the Lower Amazons are like the Colombian
form, but they are there mingled with a great diversity of colour-variations.

An example from Tole is figured.

26. Canthon deyroUei.

Canthon deyroUei, Harold, Berl. ent. Zeitschr. 1868, p. 132 ^.

Hah. Beitish Hondueas, R. Sarstoon {Blancaneaux) ; Guatemala, San Geronimo
(Champion); Nicaeagua, Chontales (Belt).

The locality of the species was unknown to Von Harold i. C. deyroUei strongly
resembles the blue-black colour-variety of C. chevrolati, from which its pluridentate
clypeus at once distinguishes it.

27. Canthon chlorizans.

Obscure Tiridi-metallicus, nitidus, pedibus rufo-testaceis ; capite tboraceque sat crebre sed discrete punctatis ;
clypeo aequaliter quadri-dentato, sutura genarum baud dentata ; elytris sat acute simpliciter striatis, inter-
stitiis disperse punctulatis, bumeris baud carinulatis ; pygidio parum convexo, punctate, medio prope basin
obtuse carinato ; corpore subtus nigro, subopaco ; tibiis posticis subrectis baud dilatatis.

S . Tibiarum anticarum calcar apice lato bifido.

long. 5 millim. •

Bob. Mexico, Juquila (Edge).

A little more oblong, and with the elytra relatively longer, than C. viridis.

CANTHON.— DELTOCHILUM. 35

28. Canthon ateucMceps.

C. deyroUei affinis, sed multo minor, prostemo subtus haud carinato, etc. Lsete viridi-seneus, nitidus, sparsim
punctulatus ; capite sat magno, clypeo antice nigro-cupreo, subtiliter scabroso-pimctato, sex-dentato, den-
tibus 4 medianis late triangularibus ; thorace medio late rotundato, margine laterali antice parum arcuato,
regione scutellari depresso ; elytris baud prof unde punctulato-striatis ; pygidio ( J ) mediocriter convexo,
sparsim punetulato ; tibiis anticis gradatim dilatatis, posticis subrectis at unicalcaratis.

Long. 6 millim.

Hah. Mexico, Acapulco {Edge).

PSEUDOCANTHON.

A gen. Canthone differt mesosterno sat elongato, sutura anteriore tamen recta. Oenli supra majores. Tibia>
anticse d intus sinuatse. Pygidio subdeflexo.

The considerably longer mesosternum of Canthon perplexus, on which this genus is
founded, separates it not only from Canthon, but from the group of genera to which
Canthon belongs. The other peculiarities which distinguish the species have already been
pointed out by Von Harold. The form of the four hinder tibiae and tarsi and the pro-
portionate length of the joints of the latter show a nearer relationship to Canthon than
to the Epilissus and Epirhinus group ; but it seems to form a step in the direction of
Chceridium rather than to form part of either group.

1. Pseudocanthon perplexus.

Canthon perplea;us, Lecontejouvn. Acad.'Phil. ser. 1, ii. p. 85'; Horn, Trans. Am. Ent. Soc. 1870,
pp. 44 & 46 ' ; Harold, Berl. ent. Zeitschr. 1868, p. 67 \
Hal. NoETH Ameeica ^ ^ 3_ — Mexico, San Juan Bautista in Tabasco (Edge) ; Guate-
mala, Paso Antonio (Champion) ; Nicaeagua, Chontales (Janson). — South Ameeica,
Amazons {coll. Bates).

DELTOCHTLUM.

Deltochilum, Eschscholtz, Entomogr. p. 37 (1832) ; Naturwiss. AbBandl. aus Dorpat, i. p. 93 (1823) ;

Lacordaire, Gen. Col. iii. p. 79.
Hyhoma, Lepeletier de Saint-Eargeau & Serville, Encycl. Meth., Ins. x. p. 352 (1825).

Like the preceding genera, peculiar to America, of which continent it constitutes
one of the most remarkable and characteristic insect forms. One species extends to
temperate latitudes in North America, and two others to the banks of the Plata ; but
the great majority are confined to the central parts of the tropical zone. Thirty-eight
species have been described.

1. Deltocliilum parile. (Tab. il. fig. 14, c? .)

B. fwrmto affine, sed multo minor, nigro-cseruleus, supra fere opacus ; clypeo aequaliter ocellato-punctulato,
dentibus approximatis utrinque fere rotundato ; tborace medio utrinque vix angulato, supra sequali discrete

FF2

36 . LAMELLICOENIA.

punctulato ; elytris striis foveatis parum impressis, interstitiis et foveis striarum (pygidioque) ocellato-pTinc-
tulatis, carina humerali usque ad medium extensa calloque humerali obtuse carinato, apice 5-carinulatis.

(J . Tibiae anticae calcare apicali lato oblique truncate ; ventris segmentis medio paullulum contractis, apicali brevi.

2 . Tibiae anticae calcare angusto acuto ; ventris segmentis medio baud contractis, apicali longiore.
Long. 14 miUim. 6 2-

Eab. Mexico, Santecomapan {Salle) ; Panama, Volcan de Chiriqui (Champion).

The Mexican examples indicate a local variety. They are smaller (10-11 millim.)
and have a much closer punctuation (the punctures stronger and ocellated) on the
thorax and ventral segments. JD. parile is remarkable in this genus for the absence of
conspicuous sexual differences in the legs, sternum, and abdomen ; with the exception of
the spur of the anterior tibiae (very often worn away), there is no external apparent
disparity beyond the shght diiference in the sutures of the ventral segments given in the
foregoing diagnosis. In colour and sculpture it resembles D.pretiosum^ Harold, which,
besides being more elongate-oblong and larger (17 millim.), presents strongly defined
difi'erential characters in the male — the ventral segments 1-4 being consolidated in the
middle and without sutures, and the mesosternum having an oblong tubercle in the
centre ; the legs, however, remaining without apparent difference.

We figure a male example from the Volcan de Chiriqui.

2. Deltochilum acropyge. (Tab. II. fig. 15, c? .)

Nigrum, subnitidum ; clypeo angustato, concavo, dentibus reflexis approximatis margineque extus valde angu-
lato, sat crebre punctato ; tborace utrinque obtuse angulato, crebre punctulato ; elytris distincte punctato-
striatis, interstitiis convexis, undique ocellato-punctulatis, carina humerali brevi caUoque humerali valde
unicarinato, apice carinis 5 valde elevatis tuberculoque prope suturam ; antennis rufis.

(J. Pygidium elongatum, planum, creberrime ocellato-punctatum, apice acuminate -recurvum; tibiae posticae valde
arcuatae ; venter grosse sparsim punctato, segmentis 2 et 3 medio contractis suturisque subtilibus, flexuosis,
suturis 4 et 5 profunde sulcatis ; metasternum apice fovea magna.

Long. 13 millim.

Hal. British Hondukas, Belize {Blancaneaux). One male example only.

Unlike any other known species in its long, plane pygidium, with the apex upturned
and acute. The clypeus also is peculiar in being more prolonged than usual, and
narrowed to the front ; the two teeth lie as close together as in some species of Canthon j
and on each side the margin is strongly angulated, with an additional short and acute
prominence at the suture dividing the clypeus from the gense. The sides of the thorax
in front of the median obtuse angle are straight and simple. The punctuation of the
upper surface does not differ from that of the Mexican var. of I), parile.

3. Deltochilum gibbosum.

Scaraheeus gibbosus, Fabr. Syst. Ent. p. 28 ^; Oliv. Ent. i. 3, p. 154, t. 16. f. 151 b.
Eab. North America, Carolina i.

Var. suhlceve. Nitidior ; capite thoraceque baud alutaceis, crebre punctulatis, hoc aequaliter convexo, juxta basin
punctis majoribus annularibus; elytris subtiliter punctato-striatis, interstitiis planis, crebre annulate-

DELTOCHILTJM. 37

punctulatis, Mc illie rugulosis. c? major ; tibiae posticae apice intus lobulato-produetae, femoribus inter-
mediis infra carina elongata.
Long. 22-28 millim. <S 2 •

Hah. Mexico, Misantla, Vera Cruz (Edge), Santecomapan {SalU).

This Mexican variety agrees with the North- American type-form in the outline of the
thorax in both sexes, the sides in both being rotundate-dilate in the middle, and not
sinuate either before or behind the dilatation.

4. Deltochilum loMpes. (Tab. II. fig. 13, d .)

D. gibboso proximo affinis, sed diiFerfc tborace medio valde angulato-dilatato, antice et postiee (prsecipue in
maribus) simiato. Cuprascenti-nigrum, subnitidum ; tborace minute et sparsius pnnctato, limbo grossiua
annulato-punctato ; elytris subtiliter punctato-striatis, interstitiis annulato-punetulatis, medio convexia
ibique seriatim nitide granulatis. c? major ; tibiae posticae apice iatua ineurvae et late lobatse lobo apice
rotundato ; femoribus intermediis subtus carina brevissima.

Xong. 22-30 millim. c? $ .

JIah. Mexico, Tehuantepec (Sumichrast), Tapachula (Hoge) ; Nicaragua, Choutales
(Belt).

Less typical examples are in the collection from Jalapa and Tampico {Hoge), but
only a single male from each locality. They accord in the strongly angulate and
bisinuate sides of the thorax, but differ from the type-form in the elytral interstices
being scarcely perceptibly convex and almost destitute of shining granules*.

The figure is taken from a well-developed male example from Tehuantepec.

5. Deltochilum mexicanum.

Deltochilum mexicanum, Burm. in D^Alton^s Zeitschr. fUr Zool. i. p. 135 \

Hab. Mexico i, Cordova {Salle% Jalapa, Misantla, Vera Cruz {Hoge) ; Costa Eica
(Salle, Van Patten), Irazu (Rogers) ; Panama, Volcan de Ohiriqui (Champion).

* It is interesting to find that the species of Deltochilum which represents the North- American D. gibbosum
in the Amazons region is more nearly allied to the I^orth- American than to the Central- American form, the
shape of the thorax being very nearly that of D. gibbosum. The following is a description : —

Beltochilom amazonicum.

Obscure nigro-cupreum ; thorace medio angulato-dilatato, lateribus ante et post angulum subrectis, crebre
annulato-punctato, disco simpliciter punctulato ; elytris foveato-striatis, interstitiis subplanis, annulato-
punetulatis, medio seriatim nitido-granulatis. S major ; tibiae posticae apice intua curvatae, sublobato, lobo
apice lato obtuso.
Long. 22-28 millim. J $ •

Hab. Amazons, Ega, Pebas. Some examples from Pebaa have very conspicuous and elevated rowa of
shining granules on the elytral interstices.

The females of this species, as well as of D. lobipes and D. gibbosum, var. suhtceve, vary like the males in
degree of development, and sometimes have rudimentary elytral bosses. All have rudiments of a tooth under-
neath the anterior tibiae, which are narrow and sharply bent, almost as in the males, and the deep fossa of the
metasternum ia also present, but in a rudimentary state. The only constant sexual differences of outer
structure lie in the ventral segments and the apex of the hind tibiae : the former being consolidated in the
middle in the male, free in the female ; and the latter produced, with an apparently short spur, in the male, and
..trimcated, with a long spur, in the female.

38 LAMELLICOENIA.

Mexican examples (of which I have seen only seven) are dull bluish-black»
Burmeister says " viridi-atrum, opacum." All the numerous specimens received from
Costa E-ica and Chiriqui are of a rich dark blue colour. Well-developed males have a
moderately-elevated umbo. The species belongs to a section of the genus (Burmeister's
Section III.) in which the " carina humeralis " is absent, and in apparent compensation
the short carina on the humeral callus is strongly developed. The true relation of this
carina is evident when the interstices are counted, it being situated on the seventh from
the suture (the position of the callus), whilst the humeral carina is at the base of the
ninth, close to the eighth stria.

The carina exterior to the humeral one, which is the upper edge of the epipleura, is
strongly flexuous in those species which have a humeral carina, but becomes straight
in those in which it is absent, viz. in D. mexicanum and allies.

The male in B. mexicanum is distinguished from the female by very slight characters ;
the sutures of the ventral segments are equally developed in both sexes, the segments in
the male being only a little more contracted in the middle ; but the hind femora have
an obtuse tooth beneath near the apex, which is wanting in the female.

6. DeltocMlum scabriusculum. (Tab. II. fig. 16, ? .)

B. dentipedi (Eschsch.) proxime affinis ; multo minor ; capite et thorace nitidis, crebre sequaliter punctatis ; elytria
pnnctulato-striafcis, interstitiis passim subvermiculato-rugosis punctisque intermixtis, lateribus utrinque
bicarinatis.

$ . Femora antica subtus unidentata ; tibiae posticse medio subangulatim incurvatse.

Long. 23-25 millim. J $ .

Eah. Mexico, Tlacotalpam {Salle), Jalapa, Cuernavaca, Misantla, Tapachula in
Chiapas [Edge) ; Guatemala, Cohan in Vera Paz (Champion).

Belongs to Burmeister's Section I., hitherto containing one species only. It differs
from D. dentipes, besides its more oblong form and punctured head and thorax, in
wanting the strongly-marked male peculiarities in the anterior and posterior tibiae and
ventral segments exhibited by that species. Burmeister gives as a character of Section I.,
" Elytris in margine externo bicarinatis," but does not point out the singular homolo-
gical relationship of the carinse to those of the rest of the genus. In fact, the usual
short humeral carina becomes here the margin of the elytra, and runs from the base
nearly to the apex, the true marginal carina, i. e. the upper edge of the epipleura, being
removed to the middle of what consequently becomes an epipleura, augmented by the
addition of one of the normally dorsal interstices. In correlation with this the
remaining dorsal interstices are expanded laterally. The second carina is nothing but
the elongation of the outer carina on the apical callus. The humeral callus on the
same (seventh) interstice is absent.

An example from Tlacotalpam is figured.

SISYPHUS.— EUETSTERNUS. 39

SISYPHUS.

Sisyphus, Latreille, Gen. Crust, et Ins. ii. p. 79 (1807) ; Lacordaire, Gen. Col. iii. p. 72; Lansberge,
Ann. Soc. Ent. Belg. xvii. p. 192.

A well-known Old- World genus, ranging from Southern Europe through the whole
of Southern Asia (including Ceylon), and through Africa to the Cape of Good Hope.
It appears not to be known in the Malay Archipelago, Australia, or in any Oceanic
Island; but reappears in Mexico and Central America in a single species. The
Mexican species, contrary to what might be expected, offers no marked peculiarity to
distinguish it from the ordinary type of the Old- World members of the genus, and in fact
is closely allied in form and sculpture to the Indian S. longipes (Oliv.). The conclusion
is scarcely to be avoided that the species has followed man in his migrations.

1. Sisyphus mexicanus.

Sisyphus mexicanus, Harold, Ann. Soc. Ent. Fr. 1863, p. 172 \

Edb. Mexico ^ Tuxtepec {Salle), Tehuantepec (Sumichrast), Misantla, Jalapa (Edge) \
NiCAEAGUA, Chontales {Belt).

EURYSTERNUS.

Eurysternus, Dalman, Ephem. Entom. p. 8 (1824) ; Lacordaire, Gen. Col. iii. p. 106; Lansberge,
Ann. Soc. Ent. Belg. xvii. p. 192.
Twenty-three species of this very distinct and peculiar genus are known, all Tropical
American.

1. Eurysternus claudicans.

Eurysternus claudicans, Kirsch, Berl. ent. Zeitschr. 1870, p. 360 ' ; Harold, Stett. ent. Zeit. 1880,
p. 13 \
Hab. NiCAEAGUA, Chontales {Belt, Janson), Rio de San Juan {Janson); Panama,
Volcan de Chiriqui {Champion). — South Ameeica, Colombia ^ ^, Amazons.

Kirsch describes one sex only ; apparently from a single example, 15 millim. long.
The species varies in size from 14 to 22 milhm. The rufescent elytra described by him
is the result probably of immaturity ; most of our examples are above of a dull olive-
black, and beneath dark glaucous-green. In the male the hind tibise are angularly
bent and laterally fiexuous, in some examples to an extraordinary degree, and armed
beneath with a large bicuspid tooth before, and two separate teeth behind, the middle,
the large tooth sometimes much reduced or entirely wanting, the apex pointed and
without spur. In the female the hind tibiae are simply arcuated, with a few small
denticulations beneath, the apex with a long free spur.

2. Eurysternus velutinus. (Tab. II. fig. 17.)

E. daudicanti similis ; elongato-oblongus, supra fusco-niger, subsericeo-opacus, brevissime nigro-setosus, subtus

40 LAMELLICOENIA.

et pedes viridi-aenei vel cuprei ; capite remote punctulato, clypeo vix depresso, integro ; tliorace versus
apicem subdilatato, creberrime sed discrete ocellato-punctato, sequaliter convexo, prope scutellum paullo
depresso ; elytris moniliato-striatis, interstitiis nigro setulosis ; corpore subtus fere laevi, abdomine apice
femoribusque valde ptinctatis ; mesosterno medio longitudinaliter depresso.

cf . Tibiae anticae subtus unidentatse ; tibiae posticae intus paullulum flexuosae, S-tuberculatse, apice intus medio-
criter productae, ecalcaratae ; abdomine basi lato concavo.

$ . Tibiae anticae subtus inermes, posticae simplices ; abdomine convexo.

Long. 18-22 millim.

Hah. Panama, Volcan de Chiriqui {Champion). — South Ameeica, Cayenne, Amazons.

Of similar large size and elongate-oblong form to E. claudicans ; but differing from
that species by its opaque velvety upper surface, and rich coppery or brassy-green
subsericeous under surface, with the legs wholly also metallic. The secondary sexual
characters as above indicated are also entirely different. As in E. claudicans, the
marginal carina of the elytra, formed by the upper edge of the epipleurge, is not
elevated as in the species allied to E. planus ; and the humeral carina is very short and
obtuse, and not continued beyond the point where the epipleural margin curves upward
from the base.

3. Eurysternus magnus. (Tab. II. fig. 18.)

Eurysternus magnus, Casteln. Hist. Nat. Ins. Col. ii. p. 93 \

Hah. Mexico i, Cordova {SalU, Edge), Jalapa (Edge), Juquila (Salle) ; Guatemala,
Cerro Zunil (Champion) ; Costa Eica (Van Fatten), Volcan de Irazu, Cache, Rio Sucio
(Bogers) \ Panama, Volcan de Chiriqui (Champion).

<J . Tibiae anticae intus multi-denticulatae, subtus sicut in $ inermes ; metasternum apice tuberculo conico ; tibisfr
posticae valde areuatae, intus multi-tuberculatae.

Most examples are uniform opaque, sooty black above, with brassy-black legs ; but
in others the elytra are more or less variegated with dull red. In both sexes the
metasternum has a rounded fovea in the centre, and the hind femora a strong spine
beneath towards the apex. The humeral carina of the elytra is prolonged to three-
fourths of the elytral length, and overtops the lateral carina, i. e. the upper edge of the
epipleura, except towards the apex.

We figure a specimen from Juquila.

4. Eurysternus nebulosus.

Eurysternus nebulosus, Kirsch, Berl. ent. Zeitschr. xiv. p. 361 (1870) ^.

Eah. Nicaeagua, Chontales (Belt). — South Ameeica, Colombia \ Amazons.

Compared by Kirsch with E. mexicanus, but much more nearly allied to E. planuSy
Dalm., having, like that species, a very short humeral carina, and an acute strongly
elevated epipleural carina. From E. planus it differs in the male only having a spine
underneath the hind femora (in E. planus the spine exists in both sexes) ; and in the

EUEYSTEENFS. 41

metasternum being unarmed between the hind coxae, instead of having a compressed
and acute tubercle. Dalman says " Sterno inter pedes anticos in spinam producto,"
but anticos is evidently here a slip iox jposticos.

5. Eurysternus mexicanus.

Eurysternus mexicanus, Harold, Ann. Soc. Ent. Fr. 1869, p. 505 ' ; Stett. ent. Zeit. 1880, p. 14 ^
Eah. Mexico \ Cordova {Salle, Edge), Playa Vicente, Cosamaloapam, Santecomapan
{Salle), Misantla, Jalapa, Tampico {Hoge) ; Guatemala, Panzos, San Joaquin in Vera
Paz {Champion) ; Nicaeagua, Chontales {Belt, Janson) ; Panama, Bugaba, David, San
Feliz {Champion). — South America, Colombia 2.

In this species the lateral carina is formed by an extension of the humeral carina,
which behind reaches the apical callus and conceals (viewed from above) the epipleural
carina.

6. Eurysternus plebejus.

Eurysternus plebejus, Harold, Stett. ent. Zeit 1880, p. 14 \

Hah. Nicaeagua, Chontales {Janson) ; Panama, Bugaba, David {Champion). — South
Ameeica, Colombia ^ Ecuador, Amazons.

Ao-rees with E. mexicanus in the nature of the lateral carinse of the elytra ; but the
epipleural carina is rather more strongly curved upwards, and approximated to the
more obtuse inner carina — a peculiarity pointed out by Von Harold, though he does
not compare the structure with that of E. mexicanus. The species is much smaller
than E. mexicanus, and differs in the hind femora not showing the remarkable dilatation
and compression of that species.

Von Harold describes the female only. The metasternum is similar in both sexes,
havino- a round central fovea, with an obtuse carina thence to the apex ; but the hind
femora present a singular sexual peculiarity in having a strong spine beneath in the
female, and being unarmed in the male. The hind tibiae ( d ) are not greatly prolonged
on the inner side at the apex as in other species, but are spurless.

7. Eurysternus angustulus. (Tab. 11. fig. 19.)

Eurysternus angustulus, Harold, Ann. Soc. Ent. Fr. 1869, p. 506 '.
Eah. Mexico {Salle ^).

One example only, a male labelled " typus " in Von Harold's handwriting in the
Salle collection. The species is allied to E. impressicollis, Casteln., from Colombia ;
in both the thorax is very uneven, and the hind tibiae in the male prolonged at the
apex into a long and sharp spine, simulating a spur. The spine is very much longer
and more spur-like in the Colombian species.

BIOL, centr.-amee., Coleopt., Vol. 11. Pt. 2, May 1887. GG

4S LAMELLICOENIA.

AGAMOPUS.

Gen. Aphengio afflnis ; diflfert elytris margine baud carinatis, tibiis posticis c? apiceia versus angiistatis, etc.
Oblongus, subdepressus, glaber. Oculi supra magni. Thorax fovea lateral! obsoleta. Tibiae setosae ;
apice rectae truncatse ; intermediae (at $ posticae) gradatim et mediocriter dilatatae, posticae <S versus
apicem angustatae apiceque iritus in spin am longam obtusam productse. Tarsi graciles, vix compressi,
4 posterioribus articulo basali parum elongate ; .ungues valde elongati, tenues. Mesosternum elongatum,
sutura postica subtili subangulata. Pygidium brevissimum. •_

A genus allied to Uroxys and Aphengium, but distinguished from both and from all
other " Choeridiinse " by the form of the posterior tibiae, which in their gradual
dilatation are somewhat intermediate between those of Choeridium and Cantlion, and in
the remarkable form they assume in the hindmost pair of the male resemble those
of no other genus. The hind femora of the male have on the under surface a straight,
finely-serrated edge, ending before the apex in a short sharp tooth.

1. Agamopus lampros. (Tab. ll. fig. 20, 6 .)

Niger vel castaneo-fuscus, politissimus, pedibus castaneo-rufis ; clypeo bidentato et vix punctate, fronte et vertice
politis ; thorace brevi et lato, disco subtilissime, lateribus fortius disperse, punctatis, margine laterali
rotundato, basi immarginato ; elytris subtiliter striatis, striis distanter crenato-punctulatis, interstitiis
planis, laevibus ; mesosterno, metasterni lateribus abduminisque segmentorum marginibus grosse punctatis ;
pygidio brevi.

Long. 4i millim.

Hah. Panama, Bugaba, Volcan de Chiriqui, David (Champion).

APHENGIUM.

Aphengium, Harold, Col. Heffce, iii. p. 54 (1868).

The only species of this genus hitherto described is from Monte Video.

1. Aphengium semi-nudum. (Tab. II. fig. 21.)

Oblongum vix ovatum, parum convexum, nigro nitidum (interdum subaeneum), setulis brevissime obsitura,
supra undique subaequaliter discrete punctulatum ; clypeo medio obtuse unidentato vel sub-bidentato ;
tborace sequaliter parum convexo, fovea laterali vix impresso, margine laterali subrecto, prope angulos
anticos citius curvato ; elytris subtilissime punctulato-striatis ; corpore subtus femoribusque, motasterno
medio sparsius et subtilius, abdomine pygidioque crebrius, punctatis ; tarsis posticis latis, compressis, dense
rufo ciliatis, articulo 1° breviter triangulari; pygidio retracto, subborizontali.

Long. 6-7 1 millim.

Hah. Nicaragua, Chon tales [Belt) ; Panama, Volcan de Chiriqui (Champion).

The marginal carina of the elytra is sharper than in A. sordidiim, and is continuous
from the rectangular (almost acute) shoulders to the sutural apex. The short and
broad, compressed and subtriangular tarsal joints are a remarkable distinguishing
feature. The anterior cavity of the prosternum is exceedingly deep.

A specimen from the Volcan de Chiriqui is figured.

IJEOXTS.— SCATIMUS. 43

UROXYS.

Uroxys, Westwood, Trans. Ent. Soc. Lond. ser. 1, iv. p. 229 (1842) ; Harold, Col. Hefte, iii. p. 33

(1868).

Seventeen species of this curious little genus, confined to Tropical America, have
been described.

1. Uroxys micros. (Tab. ll. fig. 22.)

U.jpygmceo (Harold) affinis, paullo major, elytris perspicue crenato-striafcis, etc. Oblongo-ovatus, nigro-£eneus
vel ferruginous, politus ; clypeo bidentato, juxta dentes leviter sinuato nee subdentato, vix punctulato,
vertice Isevi ; thorace laevi, sulco submargiaali profundo, basi immarginato, distanter punctate ; elytris
striatis, striis versus latera et apicem profundioribus, distanter crenato-punctatis ; pygidio basi sulco semi-
circulari profundissimo,

Long. 4-4| millim.

Ilab. Guatemala, La Gavia 2000 feet {Champion).

The singular curved sulcus on each side of the base of the pygidiom exists in
TI. pygmmus, but it is broader and deeper in the present species. The sides of the
thorax exterior to the marginal furrow are also more convex in U. micros than in
TI. pygmceus. The eyes above are large and the mesosternal suture angulated, as in
the rest of the genus.

2. Uroxys aphodioides.

U. elongato (Harold) affinis ; minus convexus, niger, nitidus, vertice cuprascente ; capite fere Isevi, vertice valide
bidentato, fronte tuberculo conico ; thorace (elytris latioribus) subtilissime punctulato, sulco laterali
flexuoso margineque medio angulato et antice arcuato, basi puuctato-marginato ; elytris crenato-striatis,
interstitiis convexis ; corpore subtus impunctato ; mesosterno longissimo, sutura parum angulato ; pygidio
valde convexo, politissimo ; tibiis 4 posticis extus irregulariter dentatis.

Long. 10 millim. $ ?

Hah. NicAEAGTJA {coll. Bates).

One example, which, from the absence of curvature in the anterior tibiae, I judge to
be a female. It was obtained, I think, from Dr. Seemann's collections made at Javali.
It resembles XT. elongatus in little except the uni-tuberculate forehead.

3. Uroxys rodriguezi. ..

Urowys rodriguezi, Preudhomme de Borre, Ann. Soc. Ent. Belg. xxx. p. 107 (1886)^'.
Hab. Guatemala 1.

SCATIMUS.

Scafimus, Erichson, ArcMv fiir Naturg. 1847, i. p. 110.

A genus peculiar to Tropical America. Three species only have been described,

GG2

44 LAMELLICOENIA.

1. Scatimus ovatus. (Tab. ii. fig. 23.)

Scatimus ovatus, Harold, Berl. ent. Zeitschr. 1862, p. 401 \

Hah. Mexico i, Cuernavaca, Cordova, Toxpam, Playa Vicente {Salle), Juquila,
Chilpancingo [Edge); Panama, Bugaba, Volcaii de Chiriqui, David, Tole [Champion).

An example from the Volcan de Chiriqui is figured.

2. Scatimus patruelis.

Scatimus patruelis, Preudhomme de Borre^ Ann. Soc. Ent. Belg. xxx. p. 108 (1886)\

Eah. Mexico 1.

CHGERIDIUM.

Choeridium, Lepeletier de Saint- Fargeau & Serville, Encycl. Meth., Ins. x. p. 356 (1825);
LacordairCj Gen. Col. iii. p. 93 ; Harold, Col. Hefte, iv. p. 32 (1868) .

A genus, so far as at present knov^^n, peculiar to America. The great majority of its
species belong to the tropical regions of the continent, and only a fev^^ inhabit the
temperate zones north and south. Nearly forty species have been described.

1. Choeridium illaesum.

Chceridium' illasum, Harold, Col. Hefte, iv. p. 53 \
Eah. Mexico i, Tuxtla {Salle), Tonila in Colima, Jalapa {Edge).

Belongs to a group of closely-allied species, of which the vs^ell-knovs^n C. capistratwn
of North America may be taken as the type. It is larger than C. ca^istratum and more
oblong. According to a specimen in the Salle collection labelled C. illcBsiim in Von
Harold's handwriting, it is distinguished from that and most other nearly-related species
by the nearly plane pygidium (" leviter convexum " according to Von Harold), the
scarcely widened last ventral segment and the faintly punctured fore margins of the other
ventral segments. The thorax is smooth, except in the middle of the base, which is
narrowly margined. As to the obsoletely-punctured elytral striee adduced by Harold
as a distinguishing character, this seems to be variable, the striae (especially towards the
sides) being sometimes as strongly crenate-striate as in the allied forms.

2. Clioeridiiini chrysopyge.

C. illceso proxime affine ; majus, aterrimum, politum ; pygidio piano, medio vix perspicue carinato, viridi-aurato
splendidissimo, oblongum ; thorace margine laterali prope angulos anticos verticaliter arcuato, basi anguste
marginato et crenato-punctato, medio linea dorsali impresso ; elytris crenato-striatis (apice striis profundius
exaratis), interstitiis fere planis ; corpore subtus nigro, femoribus 4 posticis cuprascentibus, segmentis
ventralibus planis, subtiliter annulato-punctatis ; antennis fulvo-testaceis.

Long. 8-10 millim,

Eah. Guatemala, San Geronimo {ChaiJipion).

A large number of examples, all alike except in size. The species differs from

CHCEKIDIUM. 45

C. illmsum in very little except size and colour ; the central carina of the pygidium is
very faint, and visible only in certain lights, or in some female examples quite obsolete.
In well-developed individuals the pygidium, under a lens, appears finely and sparsely
punctured.

3. Choeridium klugi.

Choeridium Mngi, Harold, Col. Hefte, iv. p. 56^.

? Chceridium nitidulum, Casteln. Hist. Nat. Ins. Col. ii. p. 83 ^

Eab. Mexico ^ '^, Cordova (Salle).

Von Harold gives the size as 3J-4 lines, but a specimen I received from him named
C. klugi measures barely 3 lines ; the size given by Castelnau for C. nitidulum, viz.
2f lines, is therefore no reason for excluding his species from the synonymy, though his
description is too vague to be relied on. Specimens named C. nitidulum, Casteln., in
the Salle collection measure 2 J and 3 lines, and agree with Von Harold's named example
and with his description. The form is oblong, as in C. illwsum, and the pygidium is
only a very little more convex than in that species, with which the minutely punctured
bases of the ventral segments also agree. The species is barely distinguishable by its
rather more convex elytral interstices, deeper and more strongly crenated strise, and
strongly impressed dorsal lines of the thorax, the base of which is very finely margined.

4. Choeridium guatemalense. (Tab. H. fig. 24*.)

C. Tclugi quam maxime affine ; differt pygidio valde convexo thoraceque toto baud profunde punctato. Oblongum,
nigrum, nitidum, leviter metallicum ; thorace toto, versus basin grossius, puuctulato, linea dorsali postice
impressa, medio basi depresso ; elytris lateribus vix rotundatis, perspicue crenato-striatis, interstitiis leviter
(prajcipue versus latera) convesis ; pygidio valde convexo, Isevissimo, sulco profundo marginato : segmentis
ventralibus basi parum punctatis, apicali lato et Isevi metallico.

Long. 5|-7g millim.

Hah. Guatemala, El Tumbador, Volcan de Atitlan, Pantaloon [Champion).

The sexual characters are the same as in C. illcesum. The punctuation of the thorax
is as well marked as in C. capistratum, and a little stronger in the female than in the

male.

Taken by Mr. Champion in great abundance.

The elytral striae, as in all other species of the C. capistratum group, are deepened
and broadened towards the apex, before which they terminate. The base of the thorax
appears to be immarginate, but on close inspection a narrow line is in some examples
seen at a little lower level than the apparent base.

5. Choeridium ampliatum. (Tab. II. fig. 25.)

Latius ovatum, sed elytris multo minus quam in C. capistrato ampliatis. Nigrum, nitidum, viridi-seneo vel

* By an oversigbt the name of the genus is given as CJiceridium on the Plate.

4S LAMELLICOENIA.

cupreo tinctum : thorace (medio basi punctata excepta) lasvi vel obsoletissime piinctulato, linea impressa
dorsali nulla, basi immargiuato ; elytris erenato-striatis, interstitiis fere planis ; pygidio parum convexo,
laevissimo, sulco marginali grosso et profundo ; segmentis intermediis ventralibus basi (praecipue ad latera)
longitudinaliter punctatis, apicali lato, Isevi.
Long. 7 millim.

Hah. Mexico, Presidio (Forrer), Panistlahuaca {Salle), Juquila {Hoge) ; Nicaeagua
{Salle).

Distinctly broader relatively to the length than C. illmsum^ C. Tclugi^ and C. guate-
malense ; broader even than C. capistratum, but with less dilated and rounded elytra
than that species, and the base of the thorax wholly immarginate. The numerous
examples from Juquila, and others from Panistlahuaca, are greenish-brassy-black, those
from Nicaragua coppery, and all are glossy. The pygidium varies a little in convexity,
but is never nearly plane as in C. illcesum., nor strongly convex as in C. guatemalense.

A specimen from Juquila is figured.

6. Choeridium candezei.

Chosridium candezii, Harold_, Col. Hefte, iii. p. 82 ; iv. p. 71 \ .

Hah. Panama ^ {coll. Bates, sjpecim. ty;pico).

7. Choeridium poropyge.

C. candezei proxime affine ; difFert pygidio toto polito, convexo, medio fovea elongata impresso. Oblongo-ovatum,
elytris sat rotundatis ; capite thoraceque cupreis, nitidis ; elytris piceo-nigris (basi excepta), opacis ; clypeo
margine solum punctate ; thorace transversim quadrato, laevi, linea dorsali basali profunde impresso ;
elytris versus apicem planatis, acute sat profunde striatis, striis obsoletissime crenatis prope apicem
perparum profundioribus ; ventris segmentis intermediis margine anteriore crenatis, apicali dilatato at
politissimo.

Long. 7 1 millim.

Hah. Nicaeagua, Chontales {Belt).

Closely allied to C. candezei and C. simplex, but differing from both iu the whole
surface of the pygidium being polished, and, further, in the centre being marked with
an impressed line or elongated fovea, which in one of the two examples is constricted
in the middle. The three species belong to a group which differs from the C. cajgis-
tratum series only in the elytral striae not being distinctly broader and deeper near the
apex. In both the apical border of the elytra forms a wheal or callus on which the
striae terminate before the apex itself.

8. Cliceridium aeneo-micans.

Choeridium cBneomicans , Harold, Col. Hefte, iii. p. 82; iv. p. 66 \

Hah. Panama, Bugaba, Volcan de Chiriqui, Peiia Blanca {Champion). — South
Ameeica, Amazons ^.

Some of Mr. Champion's specimens are of the colour of the type-form, " viridi-

CHCEEJDITJM.— CANTHIDIUM. 47

seneum, subauratum ; " some are dark metallic-green, and others brilliant red-
coppery.

CANTHIDIUM.

Canthidium, Erichson, Archiv fiir Naturg. 1847, i. p. 109; Harold, Col. Hefte, i. p. 10; ii.
p. 60.

A genus of small Copridae ; like Choeridium, peculiar to America and still more
numerous in species. The rang'e is somewhat different from that of the CJiceridia,
inasmuch as it does not extend to temperate latitudes in North America, although
many species occur in the southern temperate zone ; and one, apparently a recent
colonist, occurs in the Sandwich Islands. In general the species have nearly the same
facies as the Chceridia, and many are only to be distinguished on close examination of
their structural characters. In cases of doubt the very short mesosternum is the best
guide, this segment being long in Choeridium and separated from the metasternum by
an arcuated suture. Nearly ninety species have been described.

1. Canthidium haroldi. (Tab. ill. fig. l.)

Canthidium haroldi, Preudhomme de Borre, Ann. See. Ent..Belg. xxx. p. Ill (1886)\

C. lucido (Harold) affine, difFert inter alia fronte bituberculata. Rotundato-ovatum, viridi vel cupreo-auratum,
politum ; capite punctulato, clypeo nigro et obtuse bidentato, fronte carina brevi obtusa bituberculata ;
thorace post medium rotundato-dilatato, subtiliter punctulato (disco laeviore), basi punctis elongatis mar-
ginato, linea dorsali leviter impressa ; elytris striatis, striis distanter crenato-punctulatis ; subtus pedi-
busque metallicis ; pygidio subtiliter punctulato et alutaceo ; antennis pallidis.

S . Differt tantum tibiis anticis longioribus et angustioribus. Prosternum subtus nuUo modo carinatum.
Long. 6-10 millim.

Uab. Nicara.gua1, Chontales {Belt, Janson) ; Panama, Bugaba [Cham'pion).

This insect is most nearly related to C. steinheili, Harold, and a bluish-black species
from Colombia.

I retain the description written before receiving M. Preudhomme de Borre's paper,
as it is drawn up from a large series of examples, M. de Borre having at his disposal
only one rather small (7 millim.) specimen.

We figure an example from Bugaba.

2. Canthidium puncticolle. (Tab. III. fig. 2.)

Canthidium puncticolle, Harold^ Col. Hefte, i. p. 39 \

Hah. Mexico i, Pinos Altos in Chihuahua {Buchan-IIephirn), Cordova, Puebla,
Tuxtla (Salle), Cerro de Plumas (Edge); Guatemala, San Joaquin in Vera Paz
(Champion). — South America, Brazil ^.

In C. puncticolle the inner apex of the anterior tibiae is in the male produced and
dentiform, in the female simple; but the spur is slender in both sexes.

48 LAMELLICOENIA.

3. Canthidium aurifex. (Tab. III. %. 3, 6.)

C. rutilo (Harold) proxime affinis ; differt $ tibiis anticis intus apice hand productis. Breviter oblongo-
ovatum, splendide viridi-Eeneum vel cupreum aureo relucens ; capite punctulato, clypeo breviter bidentato,
fronte trituberculata ; thorace subtilissime baud dense punctulato, lateribus prope foveam tumidis ; elytris
punctato-striatis, interstitiis subtilissime rugulosis ; pygidio fortius punctato ; pedibus metalliois.

(S . Tibiae antiese apice intus acute productse ; calcare dilatato, apice truncate vel btfido.

2 . Tibiae anticse apice intus rectse nee productse ; calcare gracUi, acuto.

Long. 3|-5 miUim. ,

Hah. Panama, Bugaba (C%«m^^o?^). •

The South-American C. rutilum is similar in size, colour, and sculpture to this
insect, but differs in the inner apex of the anterior tibiae being produced into a triangular
tooth in both sexes. It appears also to be rather shorter and more spherical in
shape.

4. Canthidium ardens.

C. rutilo et G. aurifici simile. Supra et subtus cupreo-auratum, politum ; clypeo rugulosum, fronte trituber-
culata ; thorace laevi, medio basi punctulato ; elytris subtiliter striatis, striis impunctatis ; pygidio sub-
tilissime punctato.

S . Tibiae anticae apice intus dentiformiter productae et deflexae ; calcare sicut in $ gracili acuminate.

$ . Tibiae anticae apice intus acute angulatae.
Long. 3^-5 millim.

Hah. Nicaragua, Chontales (Janson) ; Panama, Bugaba, Volcan de Chiriqui (Cham-
pion).

Differs from the numerous closely-allied species of similar form and size and brilliant
metallic colouring by its faintly impressed elytral strise, in which there is no trace of
the accustomed transverse punctures, except in rare cases when a few are perceptible in
the sutural stria. Mr. Champion collected a very large series of the species, more
females than males, all of the same golden-coppery colour with green reflection in
certain lights. The following local variety differs only in colour.

Yar. C. mutatum. Saturate viridi-aeneum, splendidum ; corpore subtus et pedibus concoloribus.

Hah. Costa Rica (coll. Bates).
One example.

5. Canthidium rhodopus.

Parvum, fere orbiculare, chalybeo- vel aeneo-nigrum, antennis et pedibus testaceo-rufis ; supra (elytris subtilius)
punctulatum ; fronte tuberculata, clypeo bidentato et utrinque flexuoso ; elytris subtilissime striatis, striis
distanter punctulatis.

Tibiae anticae apice intus dentiformiter productae et deflexae ; calcare (utroque sexu ?) gracili.

Long. 4 millim. ' ,

Hah. Guatemala, Zapote (Champion).

In structure most nearly allied to C. ardens, but in colour and punctuation more

CANTHIDIIJM. 49

nearly resembling C.puncticolle. The elytral striae are very faintly impressed and marked
at distant intervals with minute punctures ; the interstices rather closely and very
finely punctured, besides being minutely shagreened. The thorax is more strongly
punctured, but less so than in the ordinary blue Mexican form of C. jpuncticolle. The
clypeus is rather coarsely and subrugosely punctured (far more so than in C. ardens)^
the vertex behind less densely punctured.

6. Canthidiuni laetum.

Canthidium latum, Harold, Col. Hefte, i. p. 53 \

Hob. Mexico ^ ; Guatemala, Senahu (Champon).

According to the description this species must be similar to C. aurifex in form and
sculpture, having a trituberculate forehead, smooth thorax, and crenate-striate elytra,
in which the sutural stria is more deeply impressed than the others ; the colour differing
in being bright green or slightly coppery-green. This description nearly suits a species
of which Mr. Champion met with two examples in Guatemala ; but I have seen no
Mexican specimens to fit it. A specimen labelled C. Icetum, in Von Harold's hand-
writing, in the Salle collection does not at all agree with the description, the forehead
being unarmed, the thorax as strongly punctured as in C. puncticolle^ and the sutural
stria not more deeply impressed than the others.

7. Canthidium ?

Hah. Panama, Bugaba (Champio7i).

A single example 2f millim. long, possibly a dwarfed individual of C. ardens, but
with the forehead unarmed.

8. Canthidium ?

Hab. Guatemala, Senahu {Champion).

Also a single example of difficult determination, only 3|^ millim. long, the forehead
unarmed ; the sculpture of the elytra similar to that of G. Icetum, but the colour
brilliant red-coppery.

9. Canthidium angusticeps. (Tab. ill. fig. 4.)

0. lucido et G. Tiaroldi simile, sed differt capite angustiore ; clypeo elongato, supra concavo, et margine
utrinque sinuato. Supra et subtus rubro-cupreum, nitidum, elytris viridi-relucentibus ,• capite discrete
subtilissime punctulato, fronte breviter carinata et sub-bidentata ; thorace medio basi triangulariter
sublobato et depresso, linea dorsali parum impressa, basi rotundato-punctulata nee marginata; elytris
crenato-striatis, interstitiis fere planis ; pygidio punctato, basi subruguloso ; metasterno basi dense punc-
tulato.

5 ? Tibite anticse valide tridentatse, apice obliquis ; calcare elongato validissimo.

Long. 51-8 millim.

BIOL, cente.-ambe., Coleopt, Vol. II. Pt. 2, 7If«;^ 1887. HH

50 LAMELLICOENIA.

Hob. Nicaragua, Chontales (Janson) ; Panama, Bugaba (Champion).

A species differing in the form of the head from the typical members of the genus.
The punctures along the base of the thorax are not elongate as in Von Harold's Group I.,
but small and rounded, and not forming a distinct margin. In some points of structure
the species approaches Scatonomus ; but the hind tarsi are not so broad and compressed
as in that genus, although the first and second joints are broader than usual in
Canthidium.

ONTHERUS.

Ontherus, Erichson, Archiv fiir Naturg. 1847, i. p. 107 ; Lacordaire, Gen. Col. iii. p. 98.

Nearly twenty species of this genus have been described ; it has a range similar to
that of the Canthidia, that is, restricted to the tropical and south temperate zones of
the American continent.

1. Ontherus azteca.

Ontherus azteca, Harold, Ann. Soc. Ent. Er. 1869, p. 503 '.
Hak Mexico, Cordova i, Oaxaca (Salle).

The type-specimen ( 2 ) in the Salle collection is the only one I have seen of this
insect. The species is rather elongate and robust, distinguished by the deeply
impressed and punctured dorsal line of the thorax. The clypeus is entire, and the
forehead armed with a conical tubercle as in the female of 0. sulcator (Fabr.). The
front of the thorax is declivous, with indications of two obtuse tubercles on the edge of
the declivity, and the sides present a reniform elevation below the fovea similar to that
of 0. quadratus. The metasternum is convex, furrowed down the middle, and strongly
punctured and reddish-hairy on the sides. .

2. Ontherus mexicanus. (Tab. III. figg. 6,S;ba, side view of head and thorax.)

Ontherus mexicanus, Harold, Col. Hefte, iv. p. 80 (?) j Ann. Soc. Ent. Fr. 1869, p. 503 (<?) \
Hah. Mexico, Cordova (Salle i), Talacingo (E'oge) ; Costa Eica (Salle).

3. Ontherus didymus.

Ontherus didymus, Erichs. Archiv fiir Naturg. 1847, i. p. 108 \ ,

cJ . Oblongus, niger, elytris interdum subopaleseentibus ; elypeo medio leviter emarginato, ruguloso, vertiee eornu
valido acuto ; thorace subtiliter sat dense punctulato, antice declivi et 4-tuberculato (tuberculis mtermediis
approximatis), linea dorsali obsoleta, fovea lateral! extus leviter tuberculata; elytris punctato-striatis
striisque utrinque crenatis ; pygidio segmentoqae ultimo ventraU crebre punctatis ; metasterno convexo,
lateribus sparsim punctatis ; tibiis anticis tridentatis.

Var. 1. Cornu verticis elevato, lato, apice bifido ; tborace antice 4-tuberculato.

Var. 2. Cornu verticis vix elevato, lato, binodoso ; thorace antice baud decHvi, obsolete bituberculato.

Eah. Mexico, Oaxaca (SaUe) ; Guatemala, Cubilguitz (Champion) ; Nicaeagua,

ONTHEEUS.— PINOTUS. 51

Chontales {Belt) ; Costa Rica, Volcan de Irazu, Eio Sucio {Bogers) ; Panama, Volcan
de Chiriqui (Chamj)ion). — South Ambeica, Eastern Peru i.

The varieties or lower developments of the male are not distinguishable from the
female otherwise than by the tridentate anterior tibiee.

Erichson's description fits exactly the common form of the female of this widely-
distributed species, in which the edge of the thoracic declivity has two obtuse tubercles.
Well-developed and rarer individuals of the same sex have four, as in 0. mexicanus, $ ,
from which they are distinguishable only by the shallower crenate-punctate striae of
the elytra. The thorax has no dorsal impressed line and the lateral fovea is simple.
The male differs widely from the corresponding sex of 0. mexicanus.

4. Ontherus brevipennis. (Tab. III. fig. 6.)

Ontherus brevipennis, Harold, Col. Hefte^ ii. p. 97 \
Eab. Panama (M'Lemman). — South America, Colombia i.

PINOTUS.

Pinotus, Erichson, Archiv fiir Naturg. 1847, i. p. 108; Lacordaire, Gen. Col. iii. p. 98.

A genus peculiar to the American continent, and of wide distribution in temperate
as well as in tropical latitudes. Sixty species have been described.

1. Pinotus yucatanus. (Tab. ill. fig. 9, $ .)

Inter minores ; piceo-niger, nitidus ; clypeo bidentato, ruguloso, vertice punctato impresso, tuberculo conico
obtuso ; thorace fere laevi, basi sulculo sat acuto laevi usque ad marginem lateralem continuato nee dilatato
et omnino impunctato, angulis posticis distinctis, margine lateral! ante angulum sinuate; elytris sat
profunde striatis, striis subtiliter crenato-punctulatis, interstitiis convexis ; metasterno basi et lateribus
sparse grosse setifero-punctato.

cJ ? Sat auguste oblongo-ovatus.

5 ? Late oblongo-ovata.

Long. 12-15 miUim.

Hah. Mexico, S.W. Yucatan {Br. Horn, coll. Bates) ; Nicaragua, Chontales {Belt).

Belongs to the group of small species, with undifferentiated sexual characters in the
armature of the head and thorax, of which many have been insufficiently described. The
present species seems to be very similar to P. inachus of Erichson, the vertex having a
shallow depression behind the simple and short tubercle, as I infer from the description
of that author, " capite ruguloso, tuberculo frontali postice impresso ; " a description
equally applicable if it refers to the tubercle, which in the male is concave behind.
Erichson, however, does not mention the marginal groove of the thorax, the narrowness
and perfect smoothness of which are very characteristic of P. yucatanus, the numerous
allied species from the northern parts of South America which I have examined having
the groove punctured or punctured and widened. A female specimen from Yucatan

is figured.

HH2

52 LAMELLICOENIA.

2. PinotUS amplicollis. (Tab. ill. figg. 10, s; 10 a, side view of head and
thorax.)
Pinotus amplicollis, Harold, Ann. Soc. Ent. Fr. 1869, p. 501 \

Hah. Mexico, Pinos Altos in Chihuahua, Alamos {Buchan-Hephurn), Presidio,
Ventanas (Forrer), Oaxaca and Puebla {Boucard i), Panistlahuaca (SallS) ; Guatemala,
T Siiaiahu in Yeia Fsiz (Champion).

A specimen from Chihuahua is figured.

3. Pinotus centralis.

Pinotus centralis, Harold, Ann. SodSint. Fr. 1869, 1^. 502 \

Sab. Beitish Honduras, E. Sarstoon (Blancaneaux) ; Guatemala, Paraiso, El Reposo
{Champion) ; Nicaeagua, Granada {Salle ^) ; Costa Rica ( Van Patten).

Pinotus Sagittarius.

Pinotus Sagittarius, Harold, Ann. Soc. Ent. Er. 1869, p. 502 \

Hah. Mexico, Toxpam near Cordova {Salle ^)f Oaxaca {Hbge).

*

5. Pinotus agenor.

Pinotus agenor, Harold, L^Abeille, vi. p. 141 (1869) ^ ; Stett. ent. Zeit. 1880, p. 26.
Pinotus foveicollis, Kirsch, Berl. ent. Zeitschr. xiv. p. 357 (1870) ^ ; Harold, Stett. ent. Zeit. 1880,
p. 26.

Hah. Panama, Taboga Island {Champion). — South Ameeica, Colombia ^^.
One female example only.

6. Pinotus satanas.

Pinotus satanas, Harold, Col. Hefte, ii. p. 98 (1867) \

Hah. Mexico, Cordova, Toxpam (SallS), Jalapa (Hoge) ; Guatemala, Cubilguitz
(Champion) ; Nicaragua, Chontales (Belt) ; Costa Rica, Volcan de Irazu, Cache, Rio
Sucio (Rogers); Panama, Volcan de Chiriqui (Champion). — Colombia/.

7. Pinotus carolinus.

Scarabaus carolinus, Linn. Syst. Nat. ed. xii. i. 2, p. 541 \ *■.'.'

Hah. North Ameeica, Carolina i.— British Honduras, R. Sarstoon (Blancaneaux) ;
Guatemala, Coban [Salle), near the city 5000 feet (Salvin, Champion), San Geronimo,
El Tumbador, Cerro Zunil, Zapote, Capetillo, Mirandilla, Escuintla (Champion);
Nicaragua, Chontales (Belt, Janson); Costa Rica (Van Patten), Yolc&n de Irazu,
Cache (Bogers) ; Panama (Macleannan), Volcan de Chiriqui (Champion).

Apparently an abundant species throughout the Central-American States, South
of Mexico. In Mexico it is replaced by the closely allied P. colonicus (Say), which is
readily distinguishable (but in the male sex only) by the head having two tubercles, one

PINOTIJS.— COPEIS. 53

before the other, P. carolinus having one only. The species varies greatly in size and
general form ; and in the shape of the cephalic tubercle, which in well-developed male
examples is sometimes obtusely pointed and sometimes broad and emarginated at the
tip. Extreme forms differ considerably from North-American specimens of P. carolinus ;
but many male examples, especially from Guatemala, offer no difference worthy of note
from others of the middle Atlantic States of North America.

P. eremita, Harold, from Colombia is a closely allied form ; but I do not venture to
refer the Central-American series to it, as two male examples from Colombia, which I
have been able to examine, offer a modification in the shape of the cephalic tubercle
which does not occur in any of the Central- American specimens.

8. Pinotus colonicus. (Tab. III. figg. 7, c? ; 8, $ .)

Copris colonica, Say, Boston Journ. Nat. Hist. i. p. 174 (?) (1835) i; Complete Writings, ii.

p. 649.
Pinotus bituberculatus, Harold, L'Abeille, vi. p. 127 {S) (1869); Ann. Soc. Ent. Fr. 1869,

p.500^

Hah. Mexico i, Alamos (Puchan-IIepburn), Guajuco in Nuevo Leon (Dr. Palmer),
Presidio (Forrer), Izucar, Mazatlan, Tuxtla, Cordova 2, Vera Cruz^ (Salle), Jalapa,
Aguas Calientes, Zapotlan in Colima, Tecomevaca, Tapachula in Chiapas (Roge).

The two tubercles of the head ( 6 ), which constitute almost the sole differential
character of this species, seem to be the result of inferior development, owing to unknown
local causes. It is a prevailing rule in the horned Copridse (as in other analogous groups)
that the smaller and feebler males lose the strongly developed armature of the larger
males and resemble the females. This is exemplified in the present case by the hinder
tubercle of the male, which is the homologue of the same prominence in the female,
and which disappears in the male of P. carolinus ; whilst the anterior tubercle, which
is extremely small in feeble males of P. colonicus, becomes larger and more elevated
according to the degree of development of the larger males. In P. carolinus the hind
tubercle (a female character) disappears in the males altogether.

COPRIS.

Copris, Geoffroy, Hist, des Ins. Envir. Paris, i. p. 87 (1762) ; Erichson, Naturgeschichte der Ins.
Dentschl. i. 3, pp. 761, 786.

This well-known genus, distributed over all the tropical and warmer temperate
regions of the Eastern Hemisphere, with the exception of Australasia and the
Oceanic Islands, is well represented in our Fauna and in temperate North America.
It is, however, absent from South America, with the exception of one species
strayed from Central America and the West Indies. About eighty species have
been described.

54 LAMELLICOENIA.

1. Copris IsevicepS. (Tab. ill. figg. ll ; ll «, side view of head and thorax.)
Copris leeviceps, Harold, Ann. Soc. Ent. Pr. 1869, p. 496 \

Eab. Mexico, San Andres Tuxtla in Vera Cruz (Boucard ^\ Cordova, Puebla, Playa
Vicente {SalU), Jalapa {Hoge) ; Guatemala, Pantaleon, Mirandilla, Cubilguitz, Panzos,
Teleman {Champion).

A specimen from Jalapa is figured.

2. Copris SallaBi. (Tab. ill. figg. 12, d ; 12 «, side view of head and thorax.)
Copm sa//ee, Harold, Ann. Soc. Ent. Pr. 1869, p. 496 \

Hah. Mexico, Cordova {SalW^) ; Guatemala, San Isidro [Champion); Panama^
Volcan de Chiriqui (Champion).

A fully-developed male from Cordova is figured.

3. Copris rebonchei. (Tab. III. figg. 13, c? ; 13 «, side view of head and thorax.)
Copris rebouchei, Harold, Ann. Soc. Ent. Fr. 1869, p. 497 K

Hah. Mexico, Ventanas (Forrer), Puebla {Boucard i).

4. Copris klugi.

Copris Uugi, Harold, Ann. Soc. Ent. Fr. 1869, p. 498 \

Hah. Mexico, Oaxaca {Boucard i), Capulalpam, Peras, Duraznal {Salle) ; Guatemala,
San Geronimo {Champion).

5. Copris boucardi.

Copris boucardi, Harold, Ann. Soc. Ent. Fr. 1869, p. 497 \
Hab. Mexico, Juquila {Boucard i).

6. Copris armatUS. (Tab. III. figg. 14, c? ,- 14 a, side view of head and thorax.)
Copris armatus, Harold, Ann. Soc. Ent. Fr. 1869, p. 498 \

Hob. Mexico, Toluca {Boucard i) ; Beitish Honduras, R. Sarstoon {Blancaneaux) ;
Guatemala {SalU), San Joaquin in Vera Paz, Capetillo, Escuintla ( Champion) ; Costa
EiCA {Van Patten), Volcan de Irazu, Rio Sucio {Bogers).

Appears to be chiefly a southern species in our Fauna. I have seen no Mexican
examples except those labelled " Toluca," presumably from M. Boucard, in the Salle
collection.

A fully-developed male from Costa Rica is figured.

7. Copris prociduus.

Copris procidua, Say, Boston Journ. Nat. Hist. i. p. 176 ^; Complete Writings, ii. p. 650.
Copris prociduus, Harold, Ann. Soc. Ent. Fr. 1869, p. 495 ^

Hab. Mexico i, Cordova, Vera Cruz 2, Orizaba, Panistlahuaca, Tuxtla, Tehuantepec
(/S'fl^/^^), Jalapa (^o^e), Mochitlan in Guerrero (^<a!fO?^).

COPEIS.— PHAN^US. 55

8. Copris incertus. (Tab. III. figg. 15, j ; 15 «, side view of head and thorax.)
? Copris incerta, Say, Boston Journ. Nat. Hist. i. p. 175 ^ ; Complete Writings, ii. p. 649.
Copris incertus, Harold, Ann. Soc. Ent. Fr. 1869, p. 494 ^

Hah. Mexico i, Campeche in Yucatan {Salle, Pilate ^), Vera Cruz 2, Tuspan 2,
Cordova 2, Panistlahuaca, Cosamaloapam, Tehuantepec {Salle), Ciudad in Durango,
Cholula, Chilpancingo, Yautepec, Cordova, Guanajuato, Jalapa, Tapachula in Chiapas
{Hoge) ; Beitish Honduras, R. Sarstoon, E. Hondo {Blancaneauoc) ; Guatemala {Salle\
Cubilguitz, San Geronimo, Aceituno, Tocoy, Teleman, Paraiso, El Eeposo, Capetillo
(Cham;pion), Chinautla 4100 feet {Salvin); Nicaragua {Wagner^), Chinandega {Salle),
Chontales {Belt, Janson) ; Costa Rica ( Van Patten) ; Panama, Bugaba, Volcan de
Chiriqui, David, Tole {Champion), Colon {Janson). — South America, Ecuador.

Distinguishable from C. jprociduus only in the male sex by the small spine-like horn
behind the base of the long frontal horn being erect (slightly curved in feebly developed
individuals), the same being inclined nearly horizontally in C. prociduus. The other
differential characters mentioned by Von Harold prove variable on the examination of
a long series, and as there are intermediate examples in Mexican localities, the two
species, or forms, would not merit separation if it were not for the difference in their
geographical distribution.

A fully-developed male from Nicaragua is figured.

PHAN^US.

Fhancms, MacLeay, Horse Ent. i. p. 124 (1819) ; Lacordaire, Gen. Col. iii. p. 100.

About eighty species have been described of this fine genus of Copridee, one of the
characteristic forms of the American Fauna. As usual, the tropical zone yields the
greatest number and variety of species; but the genus is well represented in the
warmer temperate regions both north and south, and shows no falling off there as
compared with tropical congeners in richness of colouring. Central America contains
a large proportion of species, mostly belonging to one group, and offering less variety
of forms than tropical South America.

1. PhanseuS COrythus. (Tab. III. figg. 16, 6\ 16 «, side view of head and
thorax ; 17, ? .)
Phanaus corythus, Harold, Ann. Soc. Ent. Er. 1863, p. 163 \

Hah. Mexico, Cordova i, Oaxaca^, Playa Vicente {Salle), Jalapa, Misantla, Lagos
{Hoge) ; British Honduras {Blancaneaux) ; Guatemala {Salle), El Reposo {Champion) ;
Nicaragua, Chontales {Pelt, Janson) ; Panama, Volcan de Chiriqui {Champion).

Very closely allied to P. telamon, Erichs., of Eastern Peru and the Upper Amazons ;
in both sexes the outline of the toothed clypeus and the sculpture of the elytra are

56 LAMELLICOENIA.

the same. Between the respective females I can discover no difference, but the males
are differentiated as follows : —

P. corythus. Comu capitis lamina basali supra angustata, apice utrinqiie dentato-producta ; thoracis tuberculis

antice porrectis.
P. telamon. Cornu capitis lamina basali quadrata, supra baud angustata, apice fere recte truncata ; thoracis

tubercuHs lateraliter porrectis.

Males of minor development appear to be rare in this species : I have seen only two.
As usual in the Copridse, this form is scarcely recognizable on account of the degra-
dation in the armature of its head and thorax: —

P. corythus, (^ minor. Cornu capitis obsoleto, carinam supra tridenticulatam efficiente ; thorax antice vix retusus,
tubereulis obtusis, transversis, prope apieem sitis.

We figure a male from British Honduras and a female from the Volcan de Chiriqui.

2. PhanseuS plutO. (Tab. III. figg. is, S; 18 a, side view of head and thorax.)
Phanmis pluto, Harold^ Ann. Soc. Ent. Pr. 1863, p. 164 ^

Rab. Mexico i, Puebla, Oaxaca (Salle).

A distinct species. The male has, instead of a frontal horn, a tri-tuberculate carina
like that of the female, and the thoracic prominence is broad and projecting and quadri-
tuberculate on its front edge. The armature of the thorax in the female is the same
as in P. corythus, from which it is distinguished by the sides of the clypeus being
rounded towards the median tooth.

3. PhanSBUS bitias. (Tab. III. figg. 19, c? ; 19 «, side view of head and thorax.)
PhafKBUs bitias, Harold, Ann. Soc. Ent. Er. 1863, p. 163 \

Hah. Mexico, Tuxtepec {Salle ^).

The type-specimen in the Salle collection appears to me to belong to the South-
Brazilian species P. dardanus, MacLeay (=Jasius, Fabr., nee Olivier). I have seen no
other example from Mexico or Central America.

4. PhanSBUS Chryseicollis. (Tab. IV. figg. 2,6-, 2 a, side view of head and

'SI:

thorax.)

Phanaus chryseicollis, Harold, Ann. Soc. Ent. Er. 1863, p. 164 \

Hab. Mexico, Cordova (Salle i) ; Nicaeagua, Chontales (Belt, Janson) ; Panama,
Caldera in Chiriqui [Champion).

A well-developed male from Chontales is figured.

5. PhanseuS nOCtis. (Tab. IIT figg. 20, s; 2Qa, side view of head and thorax.)

p. chryseicoUi proximo affinis ; diiFert supra toto fuligineo-niger, opacus, thorax interdum marginibus prope
angulos angustissime cupreis ; corpore subtus, pedes et pygidium nigro-eserulea ; thorace opaco, sparsim
vix perspicue punetulato, medio basi bipunctato, angulis anticis breviter lobatis; elytris subtiliter
striatis, interstitiis planis, Isevibus ; pygidio parce subtiliter punetulato.

PHAN^US. 57

(S major. Cornu capitis elongato-curvatum, postice versus apicem serrulatum, apice acuto ; thorace disco medio

late concavo, concavitatis margine antico bidentato, margine postico cornubus brevibus duobus approxi-

matis, compresso-conicis, interspatio concavo.
S minor. Cornu capitis brevissimum. Thorax disco anteriore concavo, cornubus postieis brevissimis ; pauUo

grossius punctatus.
cJ effceminatus. In loco cornu capitis tuberculo transverso medio obtuse acuminato ; thorax prope marginem

anticum quinque-tuberculatus,
5 incognita.
Long. 17-22 millim.

Hah. Panama, Bugaba, Volcan de Chiriqui [Champion). — South America, Colombia
{Wallis, coll. Bates).

Mr. Champion obtained three examples, all males of low stage of development ; two
of them have a slight trace of metallic edging near the anterior and posterior angles of
the thorax and at the base of the pygidium. The single well-developed male from
Colombia (Cauca valley ]) is more distinctly margined with green or fiery-copper in
the same situations ; it has also an almost impunctate thorax, the lower developments
showing a coarser punctuation on the sides.

Compared with males of P. chryseicollis and P. auricollis, the male, major, shows an
important diiference in the posterior horns of the thorax, these being very much closer
together than in either of those species.

We figure a male, minor, from Bugaba.

6. PhanaBUS VelutinuS. (Tab. ill. figg. 21, 6 ,- 21 a, side view of head and
thorax.)

PhancBUS velutinus, Murray, Proc. R. Physical Society of Edinburgh, i. p. 213 (1856) ^ ; Edinb.
New Philos. Journ. ser. 3, v. p. 225 ^

Hah. Costa Eica, Volcan de Irazu 6000 to 7000 feet (Bogers) ; Pai^ama, Volcan de
Chiriqui 4000 feet [Champion, Trbtsch). — South Ameeica, neighbourhood of Quito,
Ecuador ^ 2.

Murray described this beautiful and interesting species from a single example, a
male of small size and low development, in which the frontal horn was of moderate
height, and the armature of the disc of the thorax reduced to two laterally compressed
tubercles. The highly developed male has a very different appearance, the thoracic
elevation being, as usual in such cases, removed to the hind part of the disc, and the
tubercles in the middle of the front edge of the elevation developed into excessively
long, cylindrical but pointed, spines reaching the tip of the clypeus. In a lower grade
of males the thoracic spines reach only the front edge of the thorax, the grade described
by Murray being still lower than this.

In the female the head has a tri-tuberculate carina, and the thorax near the middle
of the anterior margin a very flexuous and fine carina, the middle of which advances
forward in an acute angle ending in a tubercle. This carina forms the front edge of
an eminence, bordered on each side by a deepish cavity and concave above.

BIOL. CENTE.-AMEK., Coloopt., Vol. II. Ft. 2, May 1887. II

58 LAMELLICORNIA.

P. veluUnus is closely allied to P. chryseicollis and P. noctis. The whole upper
surface is black, with a silky lustre, except the lateral margin of the thorax (from the
eye to the basal side of the hind angle), which is of a brilHant fiery-coppery hue, with
golden-green reflections. The pygidium and the four hind femora are of the same
metallic hues.

We figure a fully-developed male from the Volcan de Chiriqui.

7. Phanseus endymion.

Phanceus endymion, Harold, Ann. Soc. Ent. Fr. 1863, p. 163 \

Eab. Mexico, Vera Cruz, Cordova i, Istapan (Salle), Jalapa, Oaxaca, Maltrato
{Edge); Guatemala, San Isidro, Pantaleon, Cubilguitz (Ci^^mpfo^).

Von Harold describes the male as " niger opacus," and the female as " cseruleo-
viridis nitida." All the male examples I have seen are either rich dark blue, or
dark brassy-green ; in both cases with blackish elytra. The strise of the elytra vary
in being either smooth or crenate-punctulate. The numerous females are shining dark
blue, with the thorax sometimes slightly greenish, with a black antero-discal spot.

c? major. Cornu capitis longissimum, curvatum. Thorax disco late triangularis deplanatus, subtiliter granu-

latus, angulis posticis lateraliter valde productis.
<J effoeminatus. In loco cornu capitis carina parum elevata. Thorax disco anguste triangularis, angulis haud

productis.
$ . Thorax antice carina tri-tuberculata arcuata et pone carinam concavus.

8. PhanSBUS pyrois. (Tab. HI. figg. 22, S; 22 a, side view of head and thorax ;

23, $ .)

p. endymion proximo affinis et similis, sed differt coloribus et in $ thorace antice tri-tuberculato nee carinato,
pone tuberculo haud concavus ; clypeo bidentato ; thorace disco late triangulari, deplanato, subtiliter granu-
late ; elytris sat profunde striatis, striis semper Isevibus ; corpore subtus pedibusque nigro-cyaneis ; pjgidio
plus minusve cupreo. Colore supra variat, c? $ (elytra semper nigra fere opaca) : — 1, thorace nigro sub-
opaco, lateribus anguste aurato-cupreis capiteque nigro ; 2, capite (margine antico nigro excepto) rubro-
cupreo, thorace rubro-cupreo, lateribus viridi-seneis ; 3, capite postice igneo-cupreo, thorace disco nigro
subopaco, linea dorsali, margine postico et lateribus anterioribus late Isete igneo-cupreis ; 4, capite (margine
clypeo nigro) et thorace splendide aurato-cupreis.

Long. 14-20 millim. <S 2 •

Hah. Nicaragua, Chontales {Belt, Janson) ; Costa Eica {Van Patten); Panama,
Bugaba, Volcan de Chiriqui 2000 to 3000 feet {Cham;pion). — South America, Colombia
{coll. Bates).

The male shows fine gradations of development in the length of the horn and in the
width of the plane and sloping triangular dorsal plate of the thorax, and the lowest or
efi'eminate stage is precisely as described under P. endymion. In the female the
singular difference in the prominence on the anterior disc of the thorax is constant,
and no doubt specific, the three tubercles rising singly out of the convex slope of the
surface, without trace of carina or depression behind them.

All the specimens from Costa Rica are of the less metallic var. 1 ; in the State of
Panama the same variety occurs, mingled with vars. 2 & 4. The most richly-coloured
examples are from Chontales, where var. 1 appears not to occur.

We figure a pair from Chontales.

9. PhanSBllS melampus. (Tab. IV. figg. l, c? ; l «, side view of head and thorax.)
Phaneeus melampus, Harold, Ann. Soc. Ent. Fr. 1863, p. 165 \

Hah. Mexico i, Cordova, Tuxtla, Oaxaca {Salle), Jalapa {Hbge) ; Guatemala {Salle).

S effceminatus. In loco cornu capitis carina triangulariter elevata. Tliorax disco antice vix planato, medio
utrinque tuberculo Isevi.

We figure a fully-developed male from Cordova.

10. PhansBus guatemalensis.

PhancEus guatemalensis, Harold, Col. Hefte, viii. p. 114 \

Hah. Guatemala 1 {Salle), El Tumbador, Cerro Zunil, Volcan de Agua {Champion).

<S minor fere effceminatus. Cornu capitis brevissimum, acute compresso-conicum. Thorax disco anteriore
concavo-deplanato, posterius tuberculis Isevibus tribus, mediano minuto.

11. PhanSBUS amethystinus. (Tab. IV. figg. 3, c? ; 3 a, side view of head and
thorax.)

Phaneeus amethystinus, Harold, Ann, Soc. Ent. Fr. 1863, p. 169 \

Hah. Mexico, Orizaba {Salle i), Zacualtipan in Hidalgo, Misantla, Jalapa, Las Vigas
{Hoge) ; Guatemala, Panima and Purula in Vera Paz {Champion).

c? minor fere effceminatus. Cornu capitis brevissimum, acute compresso-conicum. Thorax disco anteriore
concavo-deplanato, posterius utrinque tuberculo elongato vel carina brevi Isevi.

A fully-developed male from Orizaba is figured.

12. PhanSBUS damocles. (Tab. IV. figg. 4, cT ; 4 a, side view of head and thorax.)
Phaneeus damocles, Harold, Ann. Soc. Ent. Fr. 1863, p. 165 \

Hah. Mexico ^, Oaxaca, Capulalpam {Boucard i), Duraznal, Panistlahuaca {Salle),
Juquila, Oaxaca {Hoge), Mochitlan in Guerrero [Baron).

The fully-developed male example figured is from Capulalpam.

13. PhanaBUS quadridens. (Tab. IV. figg. 5, c? ; 5 a, side view of head and

thorax ; 6, $ , var.)

Copris quadridens, Say, Boston Journ. Nat. Hist. i. p. 176 (1835) ^ ; Complete Writings, ii. p. 650.
Phaneeus violaceus, Casteln. Hist. Nat. Ins. Col. ii. p. 81 (1840) ^

Hah. Mexico ^ ^, Santa Clara in Chihuahua, Villa Lerdo, Durango city, Pachuca in
Hidalgo, Aguas Calientes, Las Vigas, Maltrato, Juquila, Jalapa {Hoge), Hacienda de

112

60 LAMELLICOENIA.

San Miguelito (Br. Palmer), Northern Sonora [Morrison)., Milpas, Ciudad in Durango
(Forrer), Puebla, Guanajuato, Izucar [Salle), Mexico city [Flohr).

We figure a fully-developed typical male, and also a female of a variety from
Chihuahua, the latter being a local form peculiar to Northern Mexico.

14. Phansens SCUtifer. (Tab. IV. figg. 7, c?; 7 a, side view of head and
thorax.)

(S major. Lsete viridi-seneus, politus ; clypeo margine, cornu, pedibus anticis, tibiis tarsisque posticis medioqtie
ventris, nigris ; cornu capitis sicut in P. melampo et affinibus, maxime elongate et curvato sed basi perparum
nee angulatim dilatato ; thorace lateribus crebre minute granulatis, disco late triangulari deplanato, grosse
baud dense vermiculato-granulato, medio basi Iseviore sed ibi baud distincte planato, nee bipunctato,
angulis posticis acute reflexis ; elytris striis griseo-opacis sat impressis, obsolete punctulatis, interstitiis
parum convexis, bic illic transversim rugatis ; pygidio punctulato.

$ ignota.

Long. 23 millim.

Rab. Mexico, Misantla [Edge).

Comes nearest to P. amethystinus, from which it differs in the frontal horn being less
dilated at the base, and in the base of the thorax having no distinctly limited polished
plate.

There were two examples in Herr Hoge's collection, one labelled " Misantla " and
the other " Oaxaca." As a large part of his collection was labelled wrongly " Oaxaca,"
and the Misantla specimen bears a special numbered ticket, I think it safe to conclude
that the latter is the correct locality of the species.

15. Phansens hermes. (Tab. IV. figg. 8, s; ^a, side view of head and
thorax.)

Phan<Bus hermes, Harold, Col. Hefte, iv. p. 83 (1868) ^.

Phanceus chalcomelas, (Perty) var., Harold, Berl. ent. Zeitschr. 1859, p. 198 ^.

Eal). Panama, Bugaba, David, Tole [Champion), Panama city (/. J. Walker). —
Colombia i, Bogota 2. Found abundantly in dung, on open savannas [Champion).

The great majority of the specimens are, as described by Von Harold, " subopacus,
olivaceo-cupreus ; " but a few present a brassy-green, and others a somewhat shining
golden-coppery thorax ; and others, again, are wholly golden-coppery, slightly shining.
The females have often a dull black thorax, with a dorsal line and margins coppery, or
the thorax is coppery, irregularly clouded with black.

The male developments are finely graduated and easily recognizable except the
lowest : —

S effoeminatus. Parvus (13 millim.). In loco cornu capitis carina arcuatim elevata. Thorax fere sequaliter
convexus, disco antico parum deplanato et interdum carina utrinque obtusissima marginato.

An example from David is figured.

PHAN^US. 61

16. Phanaeus adonis. (Tab. IV. figg. 9, s; 9 a, side view of head and
thorax.)

Phanaeus adonis, Harold, Ann. Soc. Ent. Fr. 1863, p. 169 \

Eah. Mexico, Tuspan i, Guanajuato {Salle), Huanchinango {Truqui).
A fully-developed male example from Huanchinango is figured.

17. Phanseus daphnis. (Tab. IV. figg. 10, d; 10 «, side view of head and
thorax.)

PhancBus daphnis, Harold, Ann. Soc. Ent. Fr. 1863, p. 166 \

Von Harold described the fully-developed male only.

(S minor. Conni capitis breve. Thorax disco anteriore anguste concavo et sparsim scabroso utrinque medio

tuberculo brevi oblique elongato.
S effoeminatus. Cornu capitis brevissimum. Thorax prope marginem anteriorem concavus, parce granulatus,

ante medium utrinque tuberculo subrotundato, plus quam dimidio posteriore convexo Isevigato.
$ . Yertex carina recta tri-tuberculata. Thorax antice medio carina arcuata et pone carinam leviter concavus.

Eah. Mexico i, Cuernavaca, Izucar {Salle, Hoge), Oaxaca {Salle), Jalapa, Plan del
Eio {Edge).

Yar. ccBruleus. Spina mediana thoracis baseos apice truncata ; elytris fere laevibus. (Harold, I. c. pp. 166-167.)
Yar. herbeus (Sturm). Sicut in typo viridi-seneus ; difFert solum elytrorum interstitiis convexis.

A fully-developed male from Izucar is figured.

18. Phanseus tridens. (Tab. IV. figg. 11, 6; lla, side view of head and
thorax.)

Phanaus tridens, Casteln. Hist. Nat. Ins. Col. ii. p. 81 ^; Harold, Ann. Soc. Ent. Fr. 1863, p. 167 ^

Eah. Mexico \ Vera Cruz ^, Orizaba, Mazatlan {Salle), Ventanas, Plan del Rio,
Cuernavaca, Almolonga, Jalapa {Edge).

We figure an example from Almolonga.

19. Phanseus furiosus. (Tab. IV. figg. 12, 6; 12 a, side view of head and
thorax.)

P. tridenti proximo affinis, coloribus minus resplendentibus, viridi-seneus vel saturate cseruleus, raro aurato-
cupreus cornuque (S) thoracis basali latissimo, supra planato, apice lato bidentato ; differt autem ( d* $ )
elytrorum striis crenato-punctatis.

Long. 14-20 millim,

Eah. Mexico, Sonora {coll. Bates), Pinos Altos in Chihuahua {Buchan-Ee^hurn),
Guanajuato {Salle), Ventanas {Forrer, Edge), Lagos in Aguas Calientes, Jalapa (Edge),
Mexico city {Er. Palmer).

I have adopted the name " P. furiosus, Duges," given to the species in the Salle
collection. We figure a fully-developed male from Ventanas.

62 LAMELLICOEmA.

20. PhanSBUS mmrod. (Tab. IV. figg. 13, c?; 13 «, side view of head and
thorax.)
Phanaus nimrod, Harold, Ann. Soc. Ent. Fr. 1863, p. 167 '.

Ilab. Mexico, Oaxaca ^ (Salle, Edge), Jalapa, Lagos, Cerro de Plumas (Edge), Putla
(Boucard).

Varies greatly in coloration — from very dark blue, through greenish-blue, brassy
green, coppery-green to brilliant golden-coppery.

5 efFceminatus. A P. dapTinis differt semper thorace medio tri-tuberculato.

$ . A P. daphnis differt striis latioribus, interstitiis valde eonvexis thoraceque postice Isevi, polito.

A fully-developed male from Oaxaca is figured.

21. Phanseus palliatus.

Phancms palliatus, Sturm, Cat. Col. p. 333, t. 2. flF. 1 & 3 (1843) * ; Harold, Ann. Soc. Ent. Fr. 1863,
p. 167'.

Hah. Mexico, Toluca [Salle), Jalapa (Edge), Mexico city (Flohr), State of
Michoacan ^ ^,

This species varies less in colour than its allies. All the numerous examples
examined are either rich coppery-red or dark blue. The coarse vermiculate sculpture
of the thorax distinguishes the female and the lower grades of the male from the
corresponding forms of the neighbouring species.

22. Phanseus eximius. (Tab. IV. figg. 14, s; Ua, side view of head and

thorax.)

P. palliato proxime afB.ni8. Yiridi-auratus, viridi-seneus, vel saturate cseruleus, raro cupreo-auratus ; elytris
late striatis, interstitiis valde eonvexis utrinqne transversim rugulosis vel crenatis.

6 major. Cornu capitis valde elongatum curvatum basi vix dilatatum. Thorax sicut in P. palliato, disco trian-

larij angulis posticis valde reflexis, acutis, medio concavo, subgrosse vermiculato-scabroso, dente valido acuto

compresso ante medium basin spatioque inter dentem et marginem posfcicum planato sublsevi bipunctato ;

differt a P. palliato margine antico sicut in P. quadridenti (Say) bispinoso.
6 minor. Cornu capitis breve. Thorax disci dimidio anteriore planato sparsim granulate, spinis anterioribus

nuUis, dente medio-basali minutissimo versus medium discum sito.
cJ effoeminatus. In loco cornu capitis carina triangulariter elevata. Thorax convexus, prope marginem anticnm

leviter concavus et obtuse bituberculatus.
5 . Thorax toto confertissime granulatus, antice carina brevi crassa obtusa et pone carinam leviter concavas.
Long. 14-17 millim.

Eab. British Hondueas, R. Sarstoon {Blancaneaux) ; Guatemala {Salle), Capetillo,
Escuintla {Champion) ; Nicaragua, Chon tales (Belt, Janson).

I have adopted the name given to this species by Dr. Candeze, under which it has
been for some years known in many collections.
A fully-developed male from Guatemala is figured.

PHANiETJS. 63

23. PhanSBUS Sallaei. (Tab. IV. figg. 15, c? ; 15 «, side view of head and
thorax.)

Phanaeus sallei, Harold, Ann. Soc. Ent. Fr. 1863, p. 168 \

Bob. Mexico, Cordova S Tuxtla (SalU), Jalapa [Edge) ; Beitish Hondueas (Blanca-
neaux) ; Guatemala, La Tinta {Champion).

The female is distinguishable from the same sex of the allied species by a shallow
concavity, and two very faint punctiform marginal impressions, in the middle of the
basal margin of the thorax.

We figure a fully-developed male from Cordova.

24. Phanseus beltianus. (Tab. IV. figg. 16, s; 16 «, side view of head and
thorax.)

P. sailed proxime affinis, thoracis sculptura eadem ; difFerfc colore virescenti-cupreo paullo fascescente et miniis

nitido, capita thoraceque lateribus Isetius viridi-auratis ; maxime differt elytrorum striis latis opacis,

interstitiis conyexis angustioribus.
S major. Cornu capitis validum, curvato-acuminatum, basi sat abrupta dilatata. Thorax disco baud late planato-

declivi, sat sparsim scabroso, medio basi planato Isevi.
$ . Thorax medio niger, medio basi punctis duobus oblongis distinctis ; antice carina curvata medio tubercu-

lata et pone carinam excavate.
Long. 20-22 millim.

Hah. NiCAEAGUA, Chontales {Belt, Janson) ; Panama, Volcan de Chiriqui {Champion).

The flattened and smooth basal plate of the thorax is separated from the anterior
declivous and scabrous disc by a transverse carina, and the anterior margin of the slope
has at each angle a conical tubercle ; the reflexed basal angles are rather less distant
than in P. sallmi ; the sides of the thorax are finely granulated.

The single example from Chiriqui diff'ers from all those from Chontales in being
coppery-red, similar to the prevailing colour of P. sallcei, but duller.

A well-developed male from Chontales is figured.

• 25. Phanseus wagneri. (Tab. IV. figg. 17, c?; 17 a, side view of head and
thorax.)
PhancBUS wagneri, Harold, Ann. Soc. Ent. Fr. 1863, p. 170*.

Hah. Mexico, Chiapas {Salle); Beitish Hondueas, R. Sarstoon {Blancaneaux) \
Guatemala {Salle), Champerico, El Reposo, Paraiso, Escuintla, San Geronimo, Purula
{Champion) ; Nicaeagua {Wagner^, Salle i), Granada {Salle) ; Costa Eica {Van Patten),
Cache {Rogers).

The two small and round punctiform impressions of the base of the thorax, which
Von Harold indicates as characteristic of this species in both sexes, are in rare examples
wanting.

Dark bluish-green individuals occur only in the northern part of the range of the

64 LAMELLICOENIA.

species, with rare examples coppery. In our very large series from Costa Rica nearly
all the examples are rich golden-coppery, rarely with a greenish tinge. '

A fully-developed male from Costa Rica is figured.

26. PhanSBUS mexicanus. (Tab. IV. figg. 18, 6; 18 «, side view of head and

thorax.)

Phanaeus mexicanus, Harold, Ann. Soc. Ent. Fr. 1863, p. 171 \
Phanaeus divisus, Harold, loc. cit. p. 171 ^.

Sab. Mexico, Sonora [coll. Bates), Pinos Altos in Chihuahua {Buchan- Hepburn),
Presidio (Forrer), Puebla, Orizaba, Tuxtla, Vera Cruz \ Izucar, Juquila, Oaxaca ^ (Salle),
Villa Lerdo in Durango, Tacambaro, Jalapa, Misantla, Oaxaca [Edge).

Von Harold separated P. divisus on the ground of a slight difference of relative
position in the tubercles on the sloping disc of the thorax ; the tubercles exist in the
complete number of three only in males of the greatest development, and the difi"erence
between P. mexicanus and P. divisus lies in the anterior tubercle being in the former
more or less close to the two hinder ones, and in the latter distant from them. On
comparing, however, a large number of well-developed males, it is at once seen that all
grades in the relative distance of the tubercles are exhibited, and that the division
into two species must be quite arbitrary. Besides, individuals thus compared show no
difference in other respects when they differ in the position of the tubercles. In males
of secondary development the anterior tubercle disappears ; in others of still lower
grade all three are wanting.

The species varies very greatly in its rich metallic colours. The brightest form, of
resplendent golden-coppery hues, is chiefly found in Southern Mexico. A beautiful
dark blue variety occurs at Izucar. The female also varies greatly in size, colours, and
in the form and degree of prominence of the thoracic carina ; it is, however, always
distinguishable from the same sex of P. sallcei by the carina not being sharply tuber-
culated in the middle, nor followed by a concavity. From the females of P. wagneri
and P. amithaon it may be generally distinguished by the absence of punctiform*
impressions ; but, as already observed, in some females (as well as males) of P. wagneri
these small punctiform impressions are wanting. This indication being absent, I see
no other means of separating the females of these three closely-allied species.

A fully-developed male from Puebla is figured.

27. Phanaeus SCmtillanS. (Tab. IV. figg. 19, j; 19 «j, side view of head and
thorax.)

P. mexicano affinis, sed thorace S sicut in P. amithaonte, disco antice declivi piano scabroso, medio prope mar-
ginem anteriorem tuberculo acuto et ante tuberculum bituberculato, angnlis elevatis (posticis paullo minus
quam in P. amithaonte approximatis), apice antice porrectis. Lsetissime aurato-cupreus, splendidissimus •,
tborace medio basi impunctato ; elytris striis acute insculptis, interstitiis parum convexis laevissimis.

PHAN^US. 65

$ ?. Lsete aurato-cTiprea, viridi-relueens ; thorace plagis magnis tribus nigris, medio basi interdum punctis

minutis duobus.
Long. 20-23 mimm.

Hah. Mexico, Oaxaca {Salle, Edge).
A fully-developed male is figured.

28. PhanseuS pilatei. (Tab. IV. figg. 20, 6; 20 a, side view of head and thorax.)
PhancBus pilatei, Harold, Ann. Soc. Ent. Fr. 1863, p. 170 \
Hah. Mexico, Yucatan (Pilate^, coll. Salle).

A well-developed male is figured.

29. PhansBus amithaon.

Phanceus amithaon, Harold, Col. Hefte, xiii. p. 88 '.

Hah. Mexico, Presidio (Forrer), Guanajuato \ Chiapas (Salle), Guadalajara, Villa
Lerdo, Lagos in Aguas Calientes (Hoge).

Von Harold described only the male of this species, which is distinguished from the
same sex of P. mexicanus and P. wagneri by the elevated dentiform hind angles of the
thoracic discoidal elevation being much more nearly approximated, and at their summit
forming (instead of a simple tooth) a ridge extending towards the middle of the thorax.
The female, according to an example so labelled in the Salle collection, is readily
distinguishable by two large and deep punctiform impressions in the middle of the
basal margin.

30. Phanseus damon. (Tab. IV. figg. 21, c? ; 21 a, side view of head and thorax.)

PhancBUS damon, Casteln. Hist. Nat. Ins. Col. ii. p. 81 (1840) ^ ; Harold, Ann. Soc. Ent. Fr. 1863,

p. 169^
Phaneeus pegasus, Sturm, Cat. p. 331, t. 1. figg. 8, 9 (1843) ^.

Hah. Mexico ^ ^ ^, Puebla, Izucar, Juquila, Tehuantepec {Salle), Colima city, Jalapa,
Huetamo {Hoge) ; Nicaragua, San Lorenzo {Janson).

Yar. Atro-caerulexis vel chalybeus.

Hah. Guatemala, Tocoy {Champion) ; Nicaragua, Chontales {Janson).
We figure a fully-developed typical male from Puebla.

31. PhanaBUS mirabilis. (Tab. IV. figg. 22, c?; 22a, side view of head and
thorax.)

P. damon affinissimus et similis, sed conspicue diiFert ; d thoracis cornubus retrorsum inelinatis acuminatis,
apice convergentibus, antice usque ad apicem scabrosis. Lsete viridi-auratus, splendidissimus, cornu frontali
et cornubus thoracis, extus, nigris.

Long. 20 millim.

BIOL. CENTE.-AMER., Coleopt., Vol. II. Pt. 2, June 1887. KK

;66 LAMELLICOENIA.

Hah. Mexico, Mazatlan, Guanajuato {Salle), Colima city (Edge).

A female in the Salle collection from Guanajuato, labelled, like the male, " nov. sp.,"
differs in nothing from the female of P. damon. A fully-developed male from Mazatlan
is figured.

ONTHOPHAGUS.

Onthophagus, Latreille, Gen. Crust, et Ins. iii. p. 141 (1807) ; Lacordaire, G-en. Col. iii. p. 107 ;
Erichson, Naturgesch. Ins. Deutschl. iii. p. 763; Lansberge^ Stettin, ent. Zeit. 1883, p. 161.

A genus remarkable for the almost endless diversity and eccentricity displayed
in the armature of the males. Nearly six hundred species have been described, and in
all, with very few exceptions, the horns, protuberances, and processes exhibit individual
variations, the rule governing which is not easily traceable. America, North and
South, seems to contain much fewer species than the Old World, the tropical regions
of Africa and Asia furnishing the greater number, as well as the largest and most
richly decorated forms.

1. Onthophagus curvicornis.

Onthophagus curvicornis, Latr., Humboldt et Bonpland, Obs. Zool. i. p. 220, t. 23. f . 2 ' ; Harold,
Stett. ent. Zeit. 1880, p. 29 \

Hah. Mexico 2, Cordova (Salle), Mexico city, Zacualtipan, Tampico, Jalapa, Oaxaca
(Hoge); Beitish Hondueas, R. Sarstoon {Blancaneaux) ; Guatemala {Salle), Cerro
Zunil, Capetillo, Zapote, Balheu, San Geronimo {Champion) ; Costa Eica, Volcan de
Irazu {Bogers); Panama, Bugaba, Volcan de Chiriqui (Champion). — South Ameeica,
Colombia ^, Venezuela 2, Ecuador 1.

All the examples from the Volcan de Chiriqui and Bugaba are of an indigo or slaty-
blue colour. Similarly coloured varieties occur also in Mexico, but the Chiriqui form
further diifers in being rather less shining than the others.

2. Onthophagus incensus.

Onthophagus incensus, Say, Bost. Journ. Nat. Hist. i. p. 173 'j Complete Writings, ii. p. 647;
Harold, Stett. ent. Zeit. 1880, p. 30 '.

Hah. Mexico 1, Campeche in Yucatan, Cordova, Orizaba, Cuernavaca, Tuxtla, Playa
Vicente, Vera Cruz, Chiapas (Salle), Frontera and San Juan Bautista in Tabasco,
Yautepec, Guadalajara, Jalapa, Oaxaca (Hoge) ; Guatemala (Salle), El Tumbador, El
Eeposo, Las Mercedes, Cerro Zunil, Pantaloon, Zapote, Capetillo, Cubilguitz, San
Geronimo (Champion) ; Hondueas (Salle) ; Nicaeagua, Granada (Salle), Chontales
(Belt, Janson) ; Panama, Colon (Janson).

According to Von Harold ^ the only difference between 0. curvicornis and 0. incensus
lies in the form of the anterior protuberance of the thorax in the male, the protuberance

ONTHOPHAGUS. 67

being porrect and conical in the former, and less advanced, rounded, and slightly in-
dented in the latter. It appears to me, however, doubtful if the Central- American form
referred to 0. curvicornis can be really the same species, as, amongst the very numerous
well-developed males I have examined from all parts of the region, not a single one
is found with the conical protuberance of the South- American type-form described
by Latreille ; in all the thorax has the same form as in 0. incensus. But there exists
another character by which the males of both the Central and the South-American
forms of 0. curvicornis are distinguishable from 0. incensus, viz. the absence of a
carina connecting the bases of the cephalic horns. In 0. incensus this carina is always
visible, though it is less acute in some examples than in others ; but in 0. curvicornis
there is no trace of a carina. 0. curvicornis is nearly always black or bluish-black,
with a brassy-green tinge only on the crown and near the anterior angles of the
thorax. 0. incensus, on the other hand, is nearly always wholly metallic above ;
generally dark brassy-green, but sometimes dark blue, coppery-brown, or brassy-
brown, with a brilliant coppery thorax. In both species the inner apical angle of
the male anterior tibiae is prolonged and more or less reflexed ; and the elytra
are finely crenulate-striate, with the interstices rather thickly, irregularly, and finely
punctured.

3. OnthophagUS nitidior. (Tab. V. figg. l, d; la, side view of head and
thorax.)

0. curvieorni et 0. incenso quam maxime affinis, sed differt colore Isete viridi. c? carina posteriore nulla vel
obsoletissima clypeoque apice minus angustato et multo minus reflexo marginatoque ; thorace sicut in
0. incenso elytrisque subtiliter crenato-striatis, interstitiis sat confertim punctulatis et absque setis.

Long. 6|-10 millim.

Ilah. Mexico, Juquila {Salle, Hoge), Yautepec {Hoge).

Specimens in the Salle collection bear the name of 0. nitidus (Sturm, MS.).

4. OnthophagUS marginicoUis. (Tab. Y. figg. 2,6-, 2 a, side view of head
and thorax.)

OnthophagUS marginicoUis, Harold, Stett. ent. Zeit. 1880_, p. 31 \

Hah. Guatemala {Salle), San Geronimo {Champion) ; Nicaeagua, Chontales {Belt,
Janson) ; Panama, Yolcan de Chiriqui, David, Los Eemedios, Tole {Champion). — South
America, Colombia i. Upper Amazons, Peru ^.

The head is similar in form to that of 0. curvicornis and 0. incensus, i. e. with
bi-cornuted vertex ; but the clypeus is obtusely rounded, and there is a deep notch^ at the
suture separating it from the rounded gense ; the head in the male is distinctly
bi-carinated. The thorax and elytra are usually testaceous-yellow, with the disc of the
former and the alternate interstices of the latter dark brassy-green. The dark colour

KK2

68 LAMELLICOENIA.

is, however, sometimes diffused over nearly the entire surface, and is often brown
without brassy tinge.

We figure an example from Los Eemedios.

5. OnthophagUS aCUminatUS. (Tab. V. figg. 3, c? ; 3«, side view of head and
thorax.)
Onthophagus acuminatus, Harold^ Stett. ent. Zeit. 1880, p. 30 \

Hah. Panama, Bugaba, David, Colon ^ (Champion). — South America, Colombia i.

Similar to 0. incensus, from which the male is readily distinguished by the carinated
forehead and pointed clypeus. It is also a much smaller insect. The female is with
difiiculty to be distinguished from small and feebly-developed female examples of
0. incensus ; there is, however, generally perceptible a slight difference in the outline
of the clypeus — 0. incensus, $ , showing a trace of sinuation in the reflexed apical
margin, which is quite absent in 0. acuminatus, ? .

An example from Bugaba is figured.

6. Onthophagus nyctopus.

0. Ticematopo (Harold) affinis, ab 0. incenso et afliiibus differt thorace ( c? ) lobo mediano-antico angusto, parum
prodncto, compresso ; sericeo-opacus, glaber, niger, capite thoraceque seneo-tinctis, hoc crebre baud profunde
punctato, linea dorsali late impressa ; elytris planatis, crenato-striatis, interstitiis planis, punctulatis ; pygidio
crebre punctato ; tarsis et antennis fulvo-piceis ; clypeo rotundato, medio ( c? ) paullo reflexo, integro.

d . Vertex bicornutus nee carinatus, carina anteriore medio recta, ad latera angulata. Thorax antice medio
utrinque foveatus, lobo mediano angnsto, vix producto compresso. Tibise antice hand elongatse, apice intus
simp] ice,

$ . Caput bicarinatum. Thorax medio prope marginem anticum obtusissime lobatus.

Long. 5-6 millim.

Hah. Panama, Bugaba, Volcan de Chiriqui (Champion).

The outline of the gense is continuous with that of the clypeus. In the lower
development of the male the horns of the vertex are reduced to conical tubercles, and
the anterior prominence of the thorax is similar to that of the female.

7. Onthophagus crinitus.

Onthophagus crinitus, Harold, Ann. Soc. Ent. Fr. 1869, p. 510 \
Had. Mexico, Toxpam near Cordova (SallS ^).

The following is doubtless a local variety of this species, the absence of hairs from
great part of the surface in the single example being probably due to artificial causes ;
in other respects it differs from the Mexican type-specimen of the male only in
colour : —

Var. panamensis. (Tab. V. figg. 4, j ; 4: a, side view of head and thorax.)

Supra breviter setosus, nitidus, viridi-subcupreo-geneus, elytris nigro-violaceis ; thorace undique sat confertim
punctato, linea dorsali impressa ; elytris subtilissime crenulato-striatis, interstitiis aspere punctulatis.

ONTHOPHAGFS. 69

c? . Caput subplanum, disperse punctulatum ; clypeo elongato, apice late reflexo et sinuato ; vertiee cornubus
duobus semicirculariter curvatis, cupreis, basi baud carina connexis. Thorax dorso antice obtuse lobatus,
lobo post apicem constricto. Tibiae anticse valde elongatse, curvatae ; apice intus prolongate vix reflexo,
penicillato.

Long, 8| miUim. d" .

Hah. Panama, San Feliz (Champion).

8. OnthophagUS rhinolophus. (Tab. V. figg. 5, d ; 5 a, side view of head and
thorax.)

Onthophagus rhinolophus, Harold, Ann. Soc. Ent. Fr. 1869, p. 510 \

Hah. Mexico, San Andres Tuxtla {Boucard ^, in coll. Salle), Oaxaca [Hbge) ; G ctate-
MALA, San Isidro [Champion) ; Panama, Volcan de Chiriqui {Champion).

The single Guatemalan example, a female, diifers in its rather more deeply-impressed
and more strongly-punctured striae. In the very finely, scarcely visibly, punctured
elytral interstices it agrees with the typical specimens. We figure a male example
from Tuxtla.

9. Onthophagus belorhinus. (Tab. V. figg. 6, c? ; 6 «, side vievs^ of head and

thorax ; 7, $ ; la, side view of head and thorax.)

0. r'hinolo'pho proximo afflnis, a quo differt colore fuseo-aeneo nitido, tborace grosse punctate, elytris grosse
crenato-punctatis ; tborace ( c? ) antice medio lobato, lobo longitudinaliter sulcato ; clypeo ( c? ) sicut in

0. rhinolopho, late truncate et medio cornu erecto armato ; genis margine explanato-reflexo, recto, juxta
clypei suturam valde angulato, vertiee bicornuto, 5 clypeo triangulari sat elongato, apice bidentato, supra
punctato-rugoso, antice transversim carinata, vertiee breviter bicornuto ; tborace antice medio tuberculis
duobus compresso-conicis.

cJ major. Cornu clypei basi gracUi, apice valde et abrupte dilatato, cornubusque verticis tborace altioribus.

(J minor, Cornu clypei basi latior apice obtuse nee dUatatus ; cornubus verticis sicut in cJ majore.

(? effoeminatus. Clypeo apice leviter producto, reflexo, apice emarginato ; vertiee bituberculato tboraceque

antice medio baud lobato, bituberculato.
$ minor. "Vertex bituberculatus, tborace tuberculis obsoletis.
Long. 5-7| millim.

Hah. Guatemala, El Reposo, Las Mercedes, San Isidro, Pantaleon, Zapote (Cham-
pion).
Yar. ? c? minor. Viridi-auratus, elytris cupreis, pedibus rufis.

Flah. Nicaragua, Chontales (Janson).

Many examples of the typical form, one only of the variety.

This and the preceding species belong to a small group* of the genus in which both

* Tbis curious and beautiful little group appears to be peculiar to Tropical America. Otber species
belonging to it are 0. dypeatas (Blancb.), Bolivia, 0. rhinophyllus (Har.), Venezuela and Colombia, and tbe
two following : —

1. Onthophagus xanthomerus.

l^io-er, nitidus, elytris subviolaceis, sericeo-opacis, femoribus flavis ; tborace punctulato ; elytris subtUiter punctato-
striatis, interstitiis planis, alutaceis, punctulatis. S minor (?) clypeo subtriangulari, medio cornu erecto,

fO LAMELLICOENIA.

sexes have two pointed horns on the vertex ; and the front edge of the clypeus in the male
bears an erect horn dilated at its apex, and is bidentate in the female. This strange
armature attains a high degree of development in the stronger males, the clypeal horn
being dilated at its apex in horizontal semilunar form, and the horns of the vertex
elongated and curved ; but all grades of degradation of this armature, as well as of the
anterior tumid process of the thorax, occur in the large series of individuals collected
by Mr. Champion, down to a form in which there is nothing except the absence of a
frontal carina to distinguish the male from the female. In well-developed females the
horns of the vertex are erect, parallel, and reach nearly to the level of the thorax, but
in feebler individuals they are reduced to small conical tubercles, as in the effeminate
males ; in neither sex are the horns connected at their base by a transverse carina. The
thorax, in its highest male development, is nearly vertically declivous in front, with a
very shallow depression on each side to receive the horn, and the central convexity
laterally compressed and divided into two wheals by a longitudinal furrow, the wheals
in males of lower development and in females being reduced to the form of tubercles
similar to those of all forms of 0. rhinoloplius.

The colour is dark castaneous or pitchy-brown, glossy above, and more or less
metallic-coppery or seneous ; the legs generally dark pitchy-red, but sometimes lighter
rufous. The elytra are much more strongly sculptured than in 0. rhinolophus, and the
interstices are more convex.

We figure a pair of the type-form from San Isidro. Mr. Champion met with this
insect in rotten fruits, especially in cacao ; all the Guatemalan localities are on the
lower parts of the Pacific slope.

10. OnthophagUS prSBCellenS. (Tab. V. figg. 8, c? ; ^a, side view of head and
thorax ; 9, $ ; 9 <a;, side view of head and thorax.)

0. rJiinoloplio similis, sed difFert inter alia S cornubus verticis obsoletis ; Isete cupreus (interdum cupreo-seneus),
nitidus, calvus, antennis pedibusque (interdum) piceo-rufis ; tborace punetato ; elytris conspicue crenulato-
striatis, interstitiis subconvexis, disperse punctulatis.

S. Caput punctulatum, clypeo versus apicem angustato, lateribus flexuosis, apice comu erecto apice valde
dilatato semilunari, genis dilatato-reflexis, margine rectis, vertice tuberculis duobus acutis, baud carinato.

basi lato, apice obtuso, genis dilatatis, extus rectis, antice angulatis, vertice longe bicornuto ; tborace antice
declivi utrinque retuso, medio antice breviter compresso-lobato, supra snlcato. 5 clypeo dentato, fronte
transversim carinata, vertice cornubus duobus brevibus ; tborace antice medio bituberculato.
Long. 7 millim.

Hah. Amazons, Ega.

2. OnthophagUS canellinus.

5 . Bufo-castaneus, calvus, nitidus, thoracis limbo exteriore, antennis femoribusque flavo-testaceis ; clypeo
triangulari bidentato, carina anteriore utrinque abbreviata, alta, cornubus duobus verticis rectis ; tborace
undique punctate, tuberculis anticis conico-compressis ; elytris convexis, crenato-striatis, interstitiis
alutaceis sat confertim punctulatis.

Long. 8 millim.

Hob. South America, Canelos in Ecuador.

ONTHOPHAGUS. 71

Thorax dorso antice tuberculis duobus porreetis elongatis compressis, fere bispinoso. Tibiae anticse elongatee,

apice intus truncatse, penicillatse.
$ . Caput punctato-rugosum ; clypeo late triaBgulari bidentato ; fronte carinata, vertice (sicut in $ 0. rhino-

lopho) cormibus duobus erectis, basi baud carinata. Thorax dorso antice tuberculis duobus minoribus

compressis.
Long. 7|-9 millim.

Hob. Costa Eica {Van Patten) ; Panama, Bugaba {Champion).

A transition form between the groups 0. rhinolophus and 0. sharpi ; but more nearly
allied to the former, from the species of which it differs only in the horns of the vertex
being reduced to very short conical tubercles ; and the thoracic tubercles, in compen-
sation, being greatly lengthened, so that they appear, viewed from above, like two
spines projecting much beyond the hind margin of the head. It is just possible that
a more developed form of the male exists, having posterior cephalic horns, but there
is none such in the fine series collected by Van Patten.

We figure a pair from Costa Rica.

11. OnthophagUS sharpi. (Tab. V. figg. ll, c?; lla, side view of head and
thorax ; 12, $ .)
OnthophagUS sharpi, Harold, Col. Hefte, xiv. p. 138 \

Sab. NicAEAGUA, Chontales {Belt) ; Panama ^ {Boucard), Bugaba, Caldera in Chiriqui
{Champion).

Belongs to a subgroup (including the four following species) in which the males have
a clypeal horn similar to that of 0. rhinolophus and its allies, but no trace of horn on
the vertex. 0. sharpi is deep glossy-black, with very scant punctuation. The male
presents similar gradations in the development of the horn to those described under
0. helorhinus.

In the Salle collection is a female example (from Santecomapan, Mexico) very
similar to 0. sharpi in form and sculpture, but different in its rich metallic coloration,
the elytra being violet-black, the head and thorax golden-coppery, and the sternum
and femora brilliant aeneous. It would not be safe, in the absence of male examples,
to describe this as a separate species.

We figure a pair from Bugaba. In rotten fruits and at sap {Champion).

32. OnthophagUS rostratus.

OnthophagUS rostratus, Harold, Ann. Soc. Ent, Fr. 1869, p. 511 \
Hah. Mexico, Cuernavaca {Boucard S in coll. Salle).

13. OnthophagUS tapirus. (Tab. V. figg. 10, 6 -, 10«, side view of head and
thorax.)
OnthophagUS tapirus, Sharp, Journ. Linn. Soc, Zool. xiii. p. 130 (c? ? ) \

Hab. NiCAEAGUA, Chontales {Belt^).

72 LAMELLICOENIA.

14. OnthophagUS nasicornis. (Tab. V. figg. 13, c? ; 13 a, side view of head and

thorax.)

Onthophagus nasicornis (Dej. Cat.), Harold, Ann. Soc. Ent. Fr. 1869, p. 511'.

Nigerrimus, politus ; thorace sparsim punctulato ; elytrorum striis punctato-crenatis, interstitiis parum convexis,

sublaevibus ; pygidio crebre punctato.
c? . Clypeus subtriangularis, medio apice cornu erecto laminiformi apice baud dilatato ; vertice baud cornuto.

Tborax antice verticalis tri-impressus, dorso anteriore quadrato-gibboso.
$ . Clypeus bidentatus vel apice profunda fissus ; carina frontalis brevis, transversa. Tborax couvexus.

Hah. Mexico i, Cordova, Tuxtla {Salle).

The head in the male is narrower than in the preceding species, the gense not being
greatly dilated, and their outline continuous with that of the clypeus up to the base
of the horn.

15. Onthophagus dicranius. (Tab. V. figg. 14, s-, 14. a, side view of head
and thorax.)

Parvus, fusco-niger, subnitidus, cupreo-tinctus, pedibus rufo-piceis ; capite tboraceque grosse sat confertim

punctatis ; elytrorum striis valde crenato-punctatis, interstitiis rugulosis et sparsim punctatis.
c? major. Clypeus apice cornu erecto laminato furcato armatus, apice obtuse truncatus, margine leviter flexuoso.

Thorax dorso anteriore medio bituberculato, tuberculis altis, compresso-conicis.
c? minor. Cornu clypei abbreviatum, apice obtusum.

2 ' Clypeus bidentatus, capite supra piano, carina frontali brevissima, obsoleta.
Long. 5-6 millim.

Rab. Panama, Bugaba {Champion).

The two conical tubercles of the thorax in fully developed males are greatly
elevated and porrected, forming a bicuspid protuberance which overhangs the hind
margin of the head. In the minor males they are scarcely more elevated than the
thoracic tubercles of 0. rJiinolophus.

16. Onthophagus mexicanus. (Tab. V. figg. 15, s; 15 «, side view of head
and thorax.)

0. latebroso (Pabr.) affinis, sed differt corpore supra fere calvo etc. Subopacus, atro-cseruleus vel violaceus,
interdum viridis, raro cupreo-auratus ; tborace subtiliter disperse punctulato, medio basi laeviore ; elytris
subtilissime punctulato-striatis, interstitiis planissimis, punctulatis, punctulis brevissime setiferis ; antennis
nigro-clavatis ; clypeo ( c? $ ) medio apice obtuso truncato, sinuato, supra (5* laevi, $ punctato- rugoso.

c? major. Caput margine utrinque valde flexuoso bilobato, clypeo lato et valde reflexo ; carinis transversis
duabus, anteriore subtili transversa, posteriore arcuata utrinque in cornu acuto producta. Thorax antice
verticalis profunde bi-impressus ; dorso medio antice valde prolongato, furcato. Tibiis anticis elongatis,
apice intus acute productis.

S effoeminatus. Capitis margine laterali minus flexuoso, carinis validioribus, posteriore utrinque hand
prolongata. Thorax dorso antice parum producto, quadrato-lobato, lobo antice leviter emarginato. Tibiis
anticis apice intus acutis.

$ . Pere sicut in c? eflFceminato ; differt thoracis lobo anteriore minus producto baud emarginato tibiisque

anticis intus apice simpKcibus.
Long. 7-10 millim.

ONTHOPHAGUS. 73

Sab. Mexico, Alvarez Mountains [Dr. Palmer), Mexico city {Salle, Flohr), Parada,
Izucar, Guanajuato, Juquila {Salle), Jalapa, Tonila in Colima, Lagos, Zapotlan,
Zacualtipan, San Juan del Eio, Chilpancingo, Yautepec, Cerro de Plumas, Oaxaca
{Edge).

Named 0. meocicanus, Sturm, MS., in the Salle collection ; and long known as
0. diaholicus (Deyr. MS.), a name which has been used by Von Harold for a species
from Borneo. A male example from Cerro de Phxmas is figured.

17. Onthophagus guatemalensis. (Tab. V. figg. 16, s-, 16 «, side view of

head and thorax.)

0. mexicano aiSnis et simillimus ; differt S clypeo apiee semper acuminato. Subopacus, fere calvus, atro-
cseruleus antice viridis, vel toto obscure viridis ; capite S margine flexuoso, genis minus rotundatis sed
clypeo transversim quadrato, anfcice lato recto, medio triangulariter producto ; thoraee disperse et subtiliter
granulate ; elytris subtiliter punctulato-striatis, interstitiis planis, alutaceis et subtilissime granulatis.

^ major. Caput bicarinatus, carina verticis utrinque acute producta. Thorax antice profunde bi-impressus,
lobo mediano borizontaliter porrecto-furcato. Tibiis anticis elongatis, intus apice acute productis.

$ minor. Caput sicut in S majore, sed clypeo apice obtusius reflexo-acuminato. Thorax lobo antico brevi
quadrato.

$ . Clypeus semicircularis, margine sequaliter reflexo ; carina posteriore utrinque hand prolongata. Thorax lobo
mediano brevi. Tibiae anticae intus apice simplice.

Long. 7-9 millim.

Hah. Beitish Hondueas, K. Sarstoon {Blancaneaux) -, Guatemala, Capetillo, San
Joaquin (Champion).

A fully-developed male from Capetillo is figured.

18. Onthophagus lecontei. (Tab. V. figg. 17, S; 17 a, side view of head and
thorax.)
Onthophagus lecontei, Harold^ Col. Hefte^ viii. p. 115 \

Ilab. Mexico, North Mexico i, Alvarez Mountains (Dr. Palmer), Toluca, Guanajuato,
Puebla (Salle), Mexico city (Flohr), Keal del Monte, Zacualtipan, Huitzilac, Jalapa,
Oaxaca, Cerro de Plumas (Edge).

A small dull black hairy species, distinguished in well-developed males from 0. mexi-
canus and its allies by the absence of the posterior carina of the head, the anterior
(frontal) carina being, in compensation, rather strongly raised. The thoracic lobe is
never much elongated or furcate. An example from Jalapa is figured.

19. Onthophagus iodiellus.

$ . Parvus ; capite thoraceque violaceis, subnitidis, elytris nigris et sericeo-opacis ; capite bicarinato, clypeo
bidentato, genis rotundato-sublobatis cum clypeo grosse punctatis ; thoraee grosse discrete punctato, medio
antice carina brevi obtusa ; elytris conspicue crenato-striatis, interstitiis sparsim punctulatis, planis.

Long. 4 millim.

Hah. Mexico, Parada (Salle), Cerro de Plumas (Hoge).
BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, June 1887. LL

74 LAMELLICOENIA.

Not larger than the smallest individuals of 0. lecontei, and the female very similar in
form to the same sex of that species. It is different in colour ; and in the absence of
pubescence, except a few hairs on the head and the fore part of the thorax.

20. OnthophagUS championi. (Tab. V. figg. 18, S; 18 «, side view of head
and thorax; 19,?; 19 «, side view of head and thorax.)

0. guatemalensi affinis. Niger, antice viridi-seneo tinetus, subnitidus, breviter setosus ; thorace conspicue (antice
asperate) pimctulato, medio basi depresso, sublseve ; elytris subtiliter bilineatim-striatis, striis subtilissime
transversim punctulatis, interstitiis subconvexis ; confuse asperato-punctulatis ; corpore subtus viridi-seneo
et metasterno antice compresso-conico.

S . Caput subteve, clypeo antice reflexo-acuminato, genis mediocriter rotundatis, carina anteriore subtili recta,
carina verticis arcuata utrinque acute producta. Thorax dorso antico late producto-lobato, lobo apice recto
sat profunde triangulariter emarginato. Tibiae anticsB elongatae ; apice intus producto subacute, vix
penicillato.

2 . Caput bicarinatum ; clypeus semicircularis, marginibus perparum reflexis, supra rugosus. Thorax antice lobo
quadrate (angulis distinctis), parum producto.

Long. 6-8 1 millim.

Hab. Guatemala, Paraiso, El Reposo, Zapote (Champion).

A very distinct and apparently rare species of the 0. mexicanus group. The female
at first sight is liable to be taken for that of the common 0. curvicornis ; but the short
erect pubescence and the sculpture of the elytra will serve to distinguish 0. championi
on closer examination. In 0. curvicornis the strise are crenated ; and the punctures of
the interstices are simple and destitute of the hairs and accompanying granules
distinctive of the present species.

A fully-developed male from El Reposo and a female from Paraiso are figured.

21. OnthophagUS eulophus.

O. mexieano affinis ; robustior et corpore supra granulato. Niger, sericeo-nitens, sparsim brevissime setosus,

thorace elytrisque passim Eequaliter granulatis ; thorace angulis anticis late rotundatis ; elytris punctulato-

striatis.

S . Caput latum et breve, clypeo margine antico late et obtuse reflexo, genis rotundato-dilatatis, carina anteriore

subtili arcuata, carina verticis acuta utrinque acute prolongata. Thorax dorso antico late et obtuse bilobato.

Long. 10 millim. J •

Hah. Mexico (coll. Bates).

In this species the furcate thoracic process in the fully-developed male is broad, and
the fork shows no tendency to divergence. In a very remarkable species from Ecuador*
this process, as well as the horn of the clypeus, reaches a degree of development far
greater than in 0. latehrosus.

* OnthophagUS mirabilis.

Hufo-castaneus, fere calvus, femoribus flavo-testaceis ; thorace confertim punctate ; elytris confertissime punc-
tato-rugulosis ; pygidio reticulato-punctato. S . Clypeus breviter triangularis, antice cornu valde elongate,
verticali apice fisso, armatus ; thorax processo dorsali subhorizontali angusto, valde elongate, supra sulcato,
apice divarieato-furcato et intra furcam cornu clypealem recipiente.

Long. 11 millim. S •

Hah. EcuADOE, Eio Morona.

ONTHOPHAGUS. 75

22. OnthophagUS OrphnoideS. (Tab. V. figg. 20 ; 20 a, side view of head and
thorax.)

Gen. Orphno primo intuitu similis. $? piceo-niger, subnitidus, subtus pedibusque piceo-rufis, subtus sat
confertim subruguloso-punctatus ; clypeo bidentato, dentibus sejunctim a clypei margine elevatis ; fronte
carinata, vertice bituberculato ; thorace dorso anteriore profunde concavo spinaque valida ad medium
marginem anticum ; elytris sat profunde striatis, striis confertim crenatis.

Long. 7-10 millim.

Hah. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

Three examples, all of the same sex, and, judging from the broad anterior tibiae, the
frontal carina, and sculpture of the clypeus, females. The teeth of the anterior tibise
are long and robust, the two nearest the apex much nearer to each other than to the
others, the apex obliquely truncated. The head is rather short ; and the outline of the
gense and clypeus together forms a semicircle, except for the two triangular apical teeth
which rise obliquely upwards separately and direct from the margin. The tubercles
of the vertex are stout, elevated and transverse, each forming a very short and much
elevated carina : these lie much nearer the anterior carina than the usual position of
the hind carina of the females in the genus Onthophagus. The anterior cavity of the
thorax extends from the fore margin to beyond the middle, and narrows posteriorly : it
is smooth at the bottom and the ridge that bounds it on each side is compressed and
sharp in the middle, showing that the structure is but an exaggerated modification of
the antero-dorsal tubercles of both sexes in the 0. rhinolophus group. We have here,
however, an additional armature in a robust horn or spine, rising, slightly curved
upwards and backwards, from the middle of the anterior margin of the thorax.

23. Onthophagus landolti. (Tab. v. figg. 21, s; 21 a, side view of head and
thorax.)
Onthophagus landolti, Harold, Stett. ent. Zeit. 1880, p. 34 \

Hah. Mexico, Milpas (Forrer), Orizaba, Tuxtla (Salle), San Juan Bautista, Aguas
Calientes, Yautepec, Villa Lerdo, Tonila, Oaxaca, Jalapa (Edge) ; Guatemala, near the
city, Zapote, Mirandilla, Pantaleon, El Tumbador, San Joaquin, San Geronimo (Cham-
pion) ; Nicaeagua (Salle) -, Costa Rica, Cache (Bogers) ; Panama, Volcan de Chiriqui
(Champion). — South America, Colombia i, Venezuela K

This species may be considered the type of a distinct group of the genus (including
the six following) in which the head in the male is unarmed and smooth on the
surface ; the armature of the thorax restricted to one or more short lobular prominences
near the fore margin ; and the anterior tibiae of the male greatly elongated, with pro-
duced inner apex, within which is a long pencil of hairs. 0. landolti varies much in
colour : the elytra are most frequently dark brassy-brown, with pale reddish spots at the
shoulders and apex ; but the reddish colour is sometimes extended, and an extreme
variety occurs near the city of Guatemala in which the elytra are wholly tawny-brown.

LL2

76 LAMELLICOENIA.

»

This species is labelled in the Salle collection 0. ^posticus (Chevr.), under which MS.
name it is probably known in other collections. Dull-coloured examples with unspotted
elytra are distinguishable from 0. anthradnus only by the stronger punctuation of the
thorax and more uniform convexity. A male example from the Volcan de Chiriqui is
figured.

24. Onthophagus hbpfneri.

Onthophagus hopfneri, Harold^ Ann. Soc. Ent. Fr. 1869^ p. 512 \

Hob. Mexico, Vera Cruz {Salle i), Tonila, Iguala, Acapulco, Tapachula in Chiapas
(Hoge) ; Nicaragua {Salle).

Very closely allied to the preceding, from which it differs in its smaller size, and in
the elytra being yellow, with dark markings on the disc of each.

25. Onthophagus longimanus. (Tab. V. figg. 22, ^ ; 22 «, side view of head

and thorax.)

Obscure viridi-seneus vel cupraseens, nitidus, calvus, tarsis rufo-piceis ; thorace conspicue punctate ; elytris

erenulato-striatis, interstitiis subtiliter disperse punctulatis.
S . Caput latum, inerme, subtiliter sparsim punctulatum, clypeo antice late reflexo, genis rotundato-sublobatis.

Thorax antice verticalis supra 4-tuberculatus, tuberculis duobus intermediis approximatis et antice pro-

ductis. Tibiae anticae valde elongatse, subfalcatae.
5 . Caput crebrius punctatum ; clypeo punctato-ruguloso, margine antico baud reflexo, leviter sinuato ; genis

rotundato-sublobatis.
Long. 6 miUim.

Hah. Mexico, Cordova {Salle).

In well-developed males the two middle tubercles of the thorax are produced as a
binodular central lobe overhanging the hind part of the head. In lesser developments
they are much reduced, and scarcely overhang the front edge of the thorax ; the lateral
tubercle on each side is distant from, and posterior to, the central pair, and is never
distinctly prominent.

26. Onthophagus Chryses. (Tab. V. figg. 23, S ; 23 «, side view of head and

thorax; 24, $ .)

Isete viridi-seneus, glaber, politus, elytris fulvo-auratis, interdum seneis ; tborace disperse punctulato ; elytris

subtiliter crenato-striatis, interstitiis sparsim punctulatis ; tarsis f ulvo-piceis.
(J. Caput inerme, disperse punctulatum; clypeo margine antice late reflexo et truncate; genis angulatis.

Thorax medio juxta marginem tri-tuberculatus. Tibise anticse valde elongatse, subfalcatae.
S effoeminatus. Caput grossius punctatum ; clypeo vix reflexo, emarginato, vertice breviter carinato. Thorax

antice sicut in 5 , obsolete tri-tuberculatus.
$ . Clypeus bidentatus vel angulatim emarginatus, baud reflexus, supra rugoso-punctatus. Thorax antice juxta

marginem obsolete tri-tuberculatus.
Long. 6J millim.

Eab. Mexico, Cordova {Salle) ; Guatemala, Zapote {Champion) ; Panama, Volcan de
Chiriqui, Bugaba {Champion).

ONTHOPHAGUS. 77

The single Mexican male example has a more coarsely punctured thorax and golden-
green elytra, the latter more strongly sculptured. The single male example from
Guatemala is intermediate in sculpture between the Mexican and the Chiriqui form ;
it has the elytra bluish-green, with tawny spots at the shoulders and at the middle
of each side. We figure a typical pair from the Volcan de Chiriqui.

27. Onthophagus anthracinus.

Onthophagus anthracinus, Harold, Col. Hefte, xi. p. 104 \

S major. Caput supra absque carinis, medio Iseve, clypeo late reflexo margineque sinuato. Thorax prope mar-
ginem anticum lobo mediano obtuse triangular!. Tibiae anticae elongatse, curvatse, apice longe penicillato.

S minor, vel efFoeminatus. Caput minus Iseve, carina verticis brevi ; clypeo parum reflexo, late bidentato.
Thorax lobo anteriore vix producto, lato, depresso. Tibiae anticse minus elongatae.

$ . Clypeus late bidentatus nee reflexus : thorax sicut in S minore, lobo baud producto, lato, depresso.
Long. 4-6 millim.

Hob. Mexico, Orizaba, Puebla, Juquila, Parada, Guanajuato [Salle), Jalapa, Oaxaca
{Hoge) ; Guatemala i, Quezaltenango, Mirandilla, Zapote, Capetillo, Duehas, Aceytuno,
San Geronimo (Champion) ; Costa Rica, Volcan de Irazu (Bogers) ; Panama, Volcan de
Chiriqui {Champion).

A small, dull black species, coppery in front, opaque, with a slight silky gloss ; the
thorax unequal on its surface, and its punctures scattered, and more or less distinctly
ring-shaped and setiferous. The surface of the elytra is also beset with distinct punc-
tures, from each of which rises a tawny bristle. The gense are rotundate, sublobate,
and together with the clypeus (in the male) sprinkled with large punctures, the clypeus
in the female closely punctate-rugose. The head is unarmed in both sexes, and bicarinate
in the female.

28. Onthophagus igualensis.

0. landolti affinis. Multo minor, viridi-aeneus, nitidus, corpore subtus pygidioque nigris, tarsia rufescentibus ;

dense breviter setosus ; thorace grosse discrete punctato, basi distinctius marginato ; elytris punctulato-

striatis, interstitiis biseriatim setifero-punctatis ; pygidio grosse punctato.
cJ major. Caput planum, sublaeve ; genis sublobato-rotundatis, grosse punctatis ; clypeo sat elongate angustato,

cum apice elevate, emarginato et sub-bidentato. Thorax antice medio tuberculo conico acuto.
S minor. Clypeus parum elongatus, subtiliter transversim rugulosus, vertice breviter carinato. Thorax medio

antice vix prominens.
$ . Clypeus brevis, transversim rugoso-punctatus, apice sinuatus, fronte bicarinato. Thorax inermis.
Long. 3-4 millim.

Hal. Mexico, Iguala and Chilpancingo in Guerrero {Hoge).

Besides its small size and stronger punctuation, this differs from the allied species in
the hind margin of the thorax, which, viewed from behind, appears to be distinctly
margined. In all the numerous examples (except one from Iguala) there is no trace of
pale markings.

78 LAMELLICOENIA.

29. OnthophagUS gazellinUS. (Tab. V. figg. 25, <? ; 25 «, side view of head

and thorax.)

0. gazellce (Fabr.) quoad formam et colores similis ; sed diiFert capite S inermi etc. Subrotundatus, supra glaber,
subtus sparsim setosus ; fulvo-testaceus, capite thoraceqiie disco seneo-fuscis, elytris fusco-irroratis, subtus
metasterno medio seneo ; thorace toto sequaliter punctulato ; elytris crenato-striatis, interstitiis planis et
sparsim punctulatis ; pygidio sat grosse setifero-punctato.

S . Caput Iseve, inerme, margine reflexo ; clypeo obtuso truncato ; genis dilatatis, subrotundatis. Thorax antice
verticalis et obtuse quadri-tuberculatus, tubereulis duobus medianis minus elevatis et obtusioribus. Tibiae
anticse valde elongatse ; apice intus recte et longe acuminato-producto, longe penicillato.

5 . Caput bicarinatum, confertim punctulatum, antice rugulosum ; clypeo semiovato, margine reflexo ; genis
mediocriter rotundatis. Thorace sicut in c? .

Long. 9-12 millim.

Hah. Nicaragua, Chontales (Belt, Janson).

An insect strikingly different in appearance from all other known American forms
of the genus, and much resembling 0. gazella, a common species in Tropical and
Subtropical Africa and Asia. Its true affinities, however, are not with 0. gazella, but
with 0. landolti and 0. chryses.

30. OnthophagUS rufescens. (Tab. VI. fig. 1, $ .)

Oblongus, convexus, rufo-fuscus, plus minusve cupreo-metallicus interdum seneo-piceus, dense breviter setosus et
undique confertim punctatus ; capite (genis pauUulum rotundato-dilatatis) crebre punctulato ; thorace
convexo, antice S $ subverticaliter declivi, grosse punctate, punctis minoribus intermixtis; elytris
crenato-striatis, interstitiis plerumque biseriatim setifero-punctatis et subconvexis.

c? . Clypeus antice pauUo angustatus margineque reflexo subsinuato ; frons inermis. Thorax magnus, cuboidalis,
medio antice valide uni-tuberculata.

S minor. Yertex breviter carinata. Thoracis tuberculo obtuso.

$ . Clypeus obtuse rotundatus ; vertex carinata, fronte carina obsoletissima. Thorax antice inermis.

Long. 5-6i millim.

Hah. Mexico, Guanajuato {Buges, in coll. Salle\ Guadalajara, Tupataro, Matamoros
Izucar {Edge).

I have adopted the name given to this species by Duges in the Salle collection.

31. OnthophagUS COrrOSUS. (Tab. VI. figg. 2, <? ; 2 a, side view of head and
thorax.)

Puligineo-niger, antice cuprascens, sericeo-opacus, erecte setosus ; thorace punctulis annuliformibus confertim
impresso quorum nonnuUis setam rigidam emittentibus ; elytris subtiliter punctulato-striatis, interstitiis
planissimis, eleganter alutaceis plerumque biseriatim setifero-punctatis ; pygidio annulato-punctato.
S . Caput breve, margine sexies flexuoso ; clypeo reflexo ; carina verticis antice valde arcuata, elevata. Thorax
antice late quadrato-gibbosus, gibbere margine antico fere recto tuberculoque conico prope angulos anticos.
Tibiae anticse attenuatse ; apice recto truncato, penicillato.
5 . Caput margine parum flexuoso ; clypeo distinctius bidentato, supra ruguloso ; carina anteriore recta, carina
verticis minus arcuata, antice ab carina frontali sat remcta. Thorax antice parum convexus, prope marginem
anticum carina obtusa leviter arcuata. Tibise anticse apice oblique truncato.

Long. 5-5| millim.

Eah. Mexico, Cordova, Orizaba [Salle).

ONTHOPHAGUS. 79

In what appears to be the well-developed male of this singular species the posterior
carina of the head is curved anteriorly in horseshoe-shape, and advances (becoming
more sharply raised) beyond the usual situation of a frontal carina, traces of which are
seen on the sides. The front edge of the clypeus is reflexed, and forms two rounded
teeth ; between these frontal teeth and the gense the clypeal margin is strongly flexuous,
and the gense are rounded and sublobate. The large thoracic prominence is nearly
straight and somewhat sharp on its front edge ; the latter overhangs the anterior margin
of the thorax, and is rectangular at either extremity. A male from Cordova is figured.

32. Onthophagus cyclographus.

0. corroso quoad colorem et sculpturam simiUimus, differt solum capitis thoracisque armatura, thorace utroque

sexu antice bicurvatim carinato carinaque tri-tuberculato.
S minor vel elFceminatus ? Caput bicarinatum, carina anteriore subtili, posteriore recta ; clypeus grosse

punctatus vix rugulosus.
5 . Caput carinis duabus rectis ; clypeus punctato-rugosus.
Long. 5| millim.

Hob. Guatemala, San Joaquin, Balheu (Champion).

The carina of the anterior part of the thorax is sharply defined, and describes two
curves, the middle projecting forward further than the two extremities, and like them
forming a thickened tubercular angle. In dung in pine-woods (Champion).

33. Onthopliagus coscineus.

0. corroso affinis ; multo minor, subovatus, fuligineo-niger, pedibus piceo-rufis, opacus, erecte setosus, oapite

is 2 ) et tborace crebre rotundato-punctulatis (nee annulatis) ; elytris nitide punctulato-striatis, interstitiis

pauUo convexis, sericeo-alutaceis plerumque uniseriatim setiferis.
S . Caput planum ; clypeus margine apicali abrupte reflexo et sub-bidentato ; genis rotundatis ; vertice tuber-

culis duobus transversis. Thorax juxta marginem anticum medio tumidulus.
5 . Caput bicarinatum ; clypeo brevi, late et breviter reflexo-bidentato. Thorax juxta marginem anticum

medio convexus.
Long. 3|-5 millim.

Hab. Panama (coll. Bates), Volcan de Chiriqui (Champion).

The punctures of the thorax are not ring-shaped impressions as in the two preceding
species, but simple punctures, and, like those of the head, they lie very near together.
The apex of the clypeus in the male is reflexed in trapezoidal form, with the upper
edge strongly sinuated ; in the female the reflexed edge is much less elevated, and forms
two broad and rather distant teeth.

34. Onthophagus CUboidalis. (Tab. VI. figg. 3, j ; 3 a, side view of head and

thorax.)

..J . Crassus, cuboidalis, niger, politus, sparsim setosus ; capite lato, subtiliter punctulato, clypeo concavo, margine
laterali fere rectangulo, anteriore rotundato, medio obtuse truncato, carina anteriore subtili, vertice carina
alta erecte bicornuta ; thorace magno, lato conspicue punctate, punctis minoribus intermixtis, linea dorsali
IsDvi, base depresso 'sBvi, dorso anteriore triangulariter truncato, declivitate anteriore verticali ; elytris valde

80 LAMELLICOEOTA.

striatis, striis inconspicue punctulatis, interstitiis disperse punctatis ; tibiis anticis ciirvatis, dente 4"
(superiore) subobsoleto.
Long. 11 millim. S •

Hah. Mexico, Oaxaca {Ebge).

A single male. This species is allied to 0, hippopotamus, but differs in the carina of
the vertex being much elevated, and armed at each end with a longish upright horn ;
and also in the form of the thoracic anterior gibbosity, which forms in front an obtuse
bicurved carina, with a sharp vertical declivity to the fore margin of the thorax.

35. Onthophagus hippopotamus.

Ontkophagus hippopotamus, Harold, Ann. Soc. Ent. "Pr. 1869, p. 507 *.
Hah. Mexico, San Antonio de Arriba {Salle ^).

36. Onthophagus semiopacus.

Onthophagus semiopacus, Harold, Ann. Soc. Ent. Fr. 1869, p. 509 \
Eab. Mexico, Juquila {Salle ^).

37. Onthophagus chevrolati. (Tab. VI. figg. 4, d ; 4 «, side view of head and
thorax.)
Onthophagus chevrolati, Harold, Ann. Soc. Ent. Fr. 1869, p. 508 \

Edb. Mexico, San Andres Chalchicomula {Salle ^), Las Vigas, San Juan del Rio,
Zacualtipan, Salazar, Jalapa, Amecameca {Edge).

A male from Chalchicomula is figured.

38. Onthophagus retusus.

Onthophagus retusus, Harold, Ann. Soc. Ent. Fr. 1869, p. 509 \

Edb. Mexico, Parada {Boucard i), Toluca, Yolotepec, Capulalpam {Salle), Oaxaca
{Edge).

This and the preceding species are acknowledged by Von Harold to be very closely
allied. I find on comparing specimens of each bearing labels in the describer's hand-
writing that the males exhibit the differences he specifies, which are, on 0. retusus, the
less opaque, metallic, and more coarsely punctured thorax, the posterior carina without
distinct tubercle in the middle, the convex elytral interstices, &c. ; but in a large series
these characters are seen to be variable, and it is doubtful if the specific differentiation
can be maintained.

39. Onthophagus totonicapamUS. (Tab. VI. figg. 5, c? ; ba, side view of head

and thorax.)

0. chevrolati affinis et similis, diifert thorace ( c? ) gibbere antico mediano angusto angulato. Fusco-niger^

ONTHOPHAGUS. 81

senescens, sericeus, supra insequalis breviter flavo-setosns ; capite (c? $) crebre punctato-rngoso, carina
posteriore subtili biarcuata ; thorace punctis sat magnis umbilicatis et minoribns intermixtis, basi crenato-
marginato : eljtris nitide punctulato-striatis, interstitiis planis, pauciter et subtiliter punctulatis.

(S . Clypeus latus, margine lateral! plus minusve angulato, antice late rotundato reflexo ; carina anteriore nulla.
Thorax dorso antice triangulariter gibboso, medio angulato (baud obtuse producto).

c? effoeminatus. Clypeus semicircularis. Thorax gibber parum distinctus.

2 • Caput bicarinatum, clypeo sat elongato et angustato. Thorax antice medio convexum utrinque tuberculo
nitido.

Long. 5-8 millim.

Hab. Mexico, Chiapas (Salle); Guatemala, Totonicapam 9000 to 10,500 feet
(Champion).

A large series of examples. The Salle collection contains a single female specimen
from Chiapas with the thorax less strongly punctured.

40. Onthophagus aureo-fuscus.

0. totonicapamo affinis ; breviter qxiadrato-ovatus, terreno-fuscus aureo- vel seneo-tinctus, sericeo-opacus, supra
inaequalis, breviter setosus ; capite punctato-rugoso ; thorace sat grosse irregulariter umbilicato-punctato
punctis metallicip, basi punetulato-marginato ; elytris striatis, striis grosse punctatis, interstitiis granulatis ;
pygidio opaco, umbilicato-punctato.

c? . Clypeus latus subquadratus, concavus, antice late rotundatus, genis rotundatis ; carina posteriore acuta
arcuata. Thorax sicut in 0. totonicapamo c? , dorso antice triangulariter gibboso, medio angulato sub-
compresso.

S minor. Clypeus late rotundatus, carina posteriore subobsoleta biarcuata. Thorax gibber antico medio
obtusiore.

2 . Clypeus elongatus angustatus, apice sinuato ; carina anteriore subtili, posteriore (sicut in cJ $ 0. totoni-
capamo) biarcuata. Thorax medio antico convexo ibique utrinque tuberculo glabro.

Long. Bg-Tj millim.

Hab. Mexico, Parada (Salle).

Very nearly allied to 0. totonica/pamus^ but differing in its light brown colour, with
pervading metallic tint, inclining to golden, but scarcely shining. The shallow circular
punctures of the thorax are larger, and irregularly scattered over the surface, the spaces
between the punctures being very uneven ; and the elytral interstices are granulated.
The well-developed males are further distinguished by the simply arcuated posterior
carina of the head.

41. Onthophagus cyanellus. (Tab. VI. figg. 6, j ; 6 a, side view of head and

thorax.)

0. chevrolati affinis. Atro-cseruleus, brevissime setosus, subopacus ; thorace confertim punctulato, punctulis
majoribus et minoribus intermixtis, medio basi marginato ; elytris subtiliter punctulato-striatis, interstitiis
planissimis, subtilissime punctulato-setiferis.

cJ major. Clypeus latissimus et brevissimus, utrinque fere rectangulus, margine antice late arcuato ; carina
posteriore arcuata, medio interrupta, extus utrinque in spinam brevem producta. Thorax margine ante
medium reflexo-angulato angulisque anticis acutis ; dorso anteriore valde gibboso, gibbere medio lato
obtuso (fere sicut in d" 0. retuso majore).

c? minor. Clypeus brevis, semicircularis ; carina extus acuta sed baud producta. Thorax angulo marginal!
hand reflexo, gibbere dorsali medio minore et magis rotundato,

BIOL. CENTK.-AMEE., Coleopt., Vol. II. Pt. 2, Auffust 1887. MM

gf LAMBLLICOKNIA.

2 . Clypeus antice angustatus, apice obtuse tmncato. Caput bicarinatum. Thorax medio antice convexo

ibique utriiique obtuse tuberculato. ,

Long. 8-11 millim.

Hah. Mexico, Parada (Salle), Jalapa (Hoge) ; Guatemala, San Geronirao, Cerro Zunil

[Champion) ; Costa Rica, Rio Sucio, Volcaii de Irazu (Rogers) ; Panama, Biigaba, Volcan

Ae Chixiqm (Champion).

The colour is a very dark indigo-blue. This species is very distinct from the others
of the 0. chevrolati group by the punctuation, and the peculiar lateral dentiform
prolongation of the posterior carina of the head in the well-developed males. I have
adopted the name given to the species by Chevrolat in the Salle collection. A male
from the Volcan de Chiriqui is figured.

42. Onthophagus ?

Hah. Mexico, Jalapa (Hoge).

A single female example of a species apparently allied to 0. landolti.

43. Onthophagus ?

Hah. Mexico, Ciudad in Durango (Forrer).

A single female example of a species apparently allied to, but distinct from,
0. nitidior.

44. Onthophagus ?

Hah. Mexico, Ciudad in Durango (Forrer).

A single specimen very near 0. chevrolati, but with somewhat different punctuation.

ONITICELLUS.

Oniticellus, Lepeletier de Saint-Fargeau & Serville, Enc. Meth. x. p. 356 (1825); Erichson, Ins.
Deutschl. i. 3, p. 781; Lacordaire, Gen. Col. iii. p. 111.

A genus distributed over the tropical and warm temperate zones of the eastern and
western continents, but not found in Australia or in oceanic islands. Only two species
have hitherto been detected in America, namely — one in the West-Indian Islands, and
a second in California. Forty-four species have been described.

The remarkable new species described below, recently discovered by Herr Hoge in
Mexico, differs from all other known members of the genus in the armature of the
thorax ; but as very great diversity exists in the genus in this respect as well as in
general form and sculpture, and as the Mexican species agrees very closely with Oniti-
cellus in all essential points of structure, there is no ground for treating it as a
separate genus.

ONITICELLIJS.— APHODITJS. 83

1. Oniticellus monstrosus. (Tab. VI. figg. 7,6; 7 a, side view of head and
thorax ; 8, $ ; S a, side view of head and thorax.)

Magnus, latus, depressus, supra passim dense et minute granulatus, brevissime setosus, fere opacus, niger, capite
et thorace chalybeo vel viridi-seneo tinctis ; capite lato clypeoque late areuato ; thorace elytris latiore,
magno quadrato, postice leviter angustato, dorso late depresso vel concavo, canaliculato ; elytris subtiliter
punctulato-striatis ; tibiis posticis apice valde dilatatis.

J . Frons tuberculo : vertex cornu brevi acuto medio armatus. Thorax dorso late concavo et utrinque longi-
tudinaliter elevato-carinato.

2 • Frons valde transversim carinata ; vertex breviter bicornutus. Thorax dorso antico breviter tricornuto.

Long. 18-22 millim. ; $ lat. thoracis 12 millim.

Mab. Mexico, Guadalajara {Hoge).
Three examples.

Pam. APHODIID-ai.

APHODTUS.

Aphodius, Illiger, Kugel. Verz. der Kafer Preuss. p. 15 (1798) ; Erichsorij Ins, Deutschl. iii. 1,
p. 792.

About 460 species of this well-known genus are known to science. By far the
greater number belong to the Palsearctic and Nearctic provinces, very few being found
in the Indian and Malayan regions, and still fewer in Australasia. In both Africa and
America the genus is spread over the tropical and south temperate zones of the
continents, but fewer and less varied species occur in South America than in corre-
sponding latitudes in Africa.

I. Scutellum large, elongate-triangular.

1. Aphodius dugesi. (Tab. VI. fig. 9, c? .)

A. hcemorrhoidali similis, sed valde differt tibiarum posteriorum setis apicalibus inseqiialibus capiteque inermi.
A. hnmato (Say) affinis : multo minor, convexus, niger, nitidus ; capite laevi, convexo ; clypeo explanato,
leviter cmarginato, lateribus rotundatis, genis obtuse angulatis ; thorace sparsim irregulariter grossissime
punctate, basi immarginata ; scutello lajvissimo, vix depresso ; elytris relative brevibus, crenato-striatis,
interstitiis planis, Isevibus, apicem versus vix convexioribus ; pedibus rufo-piceis.

J , Tibiae anticae calcare curvato spatbulato ; tarsi postici articulo primo subtus furcato.

Var. elytris apice vel totis rufo-piceis.

Long. 4i millim.

Hah. Mexico, Guanajuato (Luges, coll. Salle), Tupataro (Hoge).

Belongs to Dr. Horn's Group B (cf. Trans. Am. Ent. Soc. 1870, p. Ill), which
contains six other much larger species inhabiting the United States ; all these species
exhibit in the male the same singular dilatation of the fore tibial spur and the forked
or hooked basal joint of the hind tarsi. The latter structure is apparently produced
by a spine-like process arising from the thickened apex of the joint, and directed a
little obliquely towards the base.

The species bears the MS. name A. grossus, Duges, in the Salle collection.

MM 2

84 LAMELLICOENIA.

11. Scutellum small.

A. Apical setce of the hind tibiae equal in length.

a. Base of the thorax margined.

2. Aphodius sallsei. (Tab. VI. fig. ] 0.)

Aphodius sallei, Harold^ Berl. ent. Zeitschr. 1863^ p. 336 \

Hah. Mexico ^ Cordova, Paebla (Salle), Villa Lerdo, Jala}>a, Vera Cruz, Oaxaca,
Tehuantepec (Soge) ; Guatemala, near the city, Aceitano, Duenas, Capetillo, Zapote,
Coatepeque, Rio Maria Linda, San Joaquin, Balheu, Purula, San Geronimo, Cubilguitz,
Tamahu, La Tinta (Champion) ; Nicaeagua, Grey town, Chontales [Janson) ; Costa Eica,
Volcan de Irazu (Rogers).

We figure an example from Cordova.

3. Aphodius lansbergei.

Aphodius lansbergei, Harold^ Berl. ent. Zeitschr. 1874, p. 179 \
Hah. Mexico, Cordova (Salle ^).

This species and the preceding are allied to A. granarius, but have an emarginated
clypeus, and the head and elytra castaneous, the latter being streaked with black. In
A. sallcei the anterior tibiee are punctured on the upperside, and the elytral striae sulci-
form ; in A. lanshergei the tibiae are smooth, and the elytral striae fine; the interstices
are flat in both species. A. sallcei appears to be an abundant species, whilst A. lans-
hergei is rare.

I have seen only the typical example in the Salle collection.

4. Aphodius indutilis.

Aphodius indutilis, Harold, Berl. ent. Zeitschr. 1874, p. 178 \

Hah. Mexico ^ (Salle), near the city (Flohr, Hbge), Zacualtipan (Hoge) ; Guatemala,
Quezaltenango, Quiche Mountains, Capetillo (Champion).

This species resembles in form and colour the allied North-American A. ruricola.,
Melsh., from which Von Harold distinguishes it chiefly by the coarsely rugose-punctate
head and less prominent genae.

5. Aphodius aztecus. (Tab. VI. fig. ii.)

Aphodius azteca, Harold, Berl. ent. Zeitschr. 1863, p. 381'; 1871, p. 252.
Hah. Mexico ^ Jacale (Salle).

6. Aphodius vittatus.

Aphodius vittatus, Say, Journ. Acad. Phil. v. p. 191 ' ; Complete Writings, ii. p. 295 ; Harold, Berl.
ent. Zeitschr. 1863, p. 355'; Horn, Trans. Am. Ent. Soc. 1870, p. 120'.

APHODIUS. 85

Hah. North America ^ 2 3^ — Mexico, Northern Sonora {Morrison), Guanajuato, Cor-
dova (Salle), Chihuahua city, Cuernavaca, Zacualtipan, Vera Cruz [Hoge).

b. Base of the thorax not margined.

7. Aphodius oleosus.

Aphodius oleosus, Harold^ Berl. ent. Zeitschr. 1871, p. 260^.
Hah. Mexico 1.

Described by Von Harold from a specimen supplied by Dr. Haag of Frankfort. The
species appears not to have been met with by M. Salle or any of our travellers.

8. Aphodius innexus.

Aphodius innexus, Say, Bost. Journ. Nat. Hist. i. p. 177 (1837)'; Complete Writings, ii. p. 651.
Aphodius flavocinctus, Harold, Ann. Soc. Ent. Fr. 1860, p. 614 ^

Hah. "? North America, California 2.— Mexico 1 2^ Alvarez Mountains (Z)r. Palmer),
Guanajuato, Puebla, Oaxaca (Salle), Mexico city (Flohr), Aguas Calientes, San Andres
Chalchicomula, Tula (Hoge).

9. Aphodius cuniculus.

Aphodius cuniculus, Chevr. Ann. Soc. Ent. Er. 1864, p. 411'; Harold, Berl. ent. Zeitschr. 1871,
p. 271 ^
Hah. Mexico, Cordova (Salle, Hoge), Vera Cruz (Hoge) ; Guatemala, Zapote (Cham-
pion); Nicaragua, Greytown (Ja;zso?z).— Antilles, Cuba^^ Santo Domingo 2.

10. Aphodius lividus.

Scarahceus lividus, Oliv. Ent. i. 3, p. 86, t. 26. f. 222 \

Aphodius lividus, Ericlis. Ins. Deutschl. i. 3, p. 837 ; Muls. Col. de France, Lamellicornes, p. 235 ;
Horn, Trans. Am. Ent. Soc. 1870, p. 121^; Harold, Berl. ent. Zeitschr. 1871, p. 279 ^

Hah. North America, Southern States 2.— Mexico (Salle), Northern Sonora (Morrison),
San Pedro in Coahuila (Dr. Palmer), Tupataro, Aguas Calientes (Hoge) ; Guatemala,
Chm^utla, (Salvin) ; Nicaragua, Chontales (J,2/^so;^).— South America, Brazil ; Europe i;
Asia; Senegal; Australia^.

11. Aphodius ?

Hah. Mexico, Cordova (Salle).

A sino-le, immature, example of a very small species allied to A. cuniculus, but
evidently distinct.

86 LAMELLICOENIA.

B. Apical setae of the hind tihice unequal in length.
a. Base of the thorax margined.

12. Aphodius flohri.

Elongato-oblongus, convexus, Bi'ger, politus, capitis margine tarsisque (interdum pedibus totis) piceo-rufis,
antennis fulvis ; capite semicirculari, clypeo antice emarginato et utrinque distincte angulato, genis hand
rotundatis ; fronte c? grosse rugose, $ subtiliter sparsim, punctata, media tumidula, carinulaque utrinque
ante oculum ; thorace basi subtiliter marginata, angulis posticis valde obtusis ibique nee sinuato, dorso
mediocriter dense punctato punctisque minutis intermixtis, linea dorsali laevi ; elytris relative elongatis,
exarato-striatis, striis punctulatis parum crenulatis, interstitiis planis subtiliter sparsim punctulatis ; meso-
sterno grosse oblongo-punctato, metasterno utrinque linea unica punctorum.

Long. 6-7 millim.

Hah. Mexico, near the city [Flohr, Edge)^ Guanajuato, Oaxaca (Salle), Duran^o
city, Refugio [Hoge).

This species seems to be closely allied to A. coloradensis, Horn.

13. Aphodius ?

Ilab. Mexico, Northern Sonora (Morrison).

A species sent by the late Mr. Morrison as the A. ursinus, Motsch., an insect known
previously only from Alaska and Kamchatka, and, according to Von Harold and Dr.
Horn, belonging to the section having equal apical setae to the hind tibise. Morrison's
species certainly agrees very well with the descriptions of both authors, with the excep-
tion that the apical setse are decidedly unequal ; hence I hesitate to adopt the name.
It is closely allied to A. flohri.

14. Aphodius glyptus. (Tab. VI. fig. 12.)

A. stu-pido (Horn) proximo affinis. Niger, subopacus, supra setis brevissimis argenteo-griseis dense obsitus ;
capite toto subdense subtiliter punctulato ; clypeo sinuato et extus subangulatim rotundato, margine ante
genas perparum sinuato; fronte media convexa; thorace creberrime hie illic confluenter et tequaliter
punctulato, basi utrinque late sinuata anguiisque obliquis obtusis ; elytris exarato-striatis, slriis nitidis,
fere Isevibus, interstitiis usque ad apicem planis et subtiliter complicato-reticulatis ; antennarum clava
fusco-nigra.

Long. 5 millim.

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

15. Aphodius latecrenatus. (Tab. VI. fig. 13.)

A. stupido (Horn) affinis. Obscure castaneo-fuscus, subopacus, capitis thoracisque lateribus plus minusve
castaneo-rufls, elytris obscure rufo-maculatis ; capite toto fere sequaliter discrete punctulato, inermi ; clypeo
medio convexo, antice subsinuatim truncate, lateribus usque ad genarum apicem leviter sinuatis subrectis ;
thorace confertissime fere reticulatim punctato, punctulis minutis dorsi intermixtis, lateribus sicut corrosis,
angulis posticis valde sinuatis ; elytris latissime exarato-striatis striisque grosse et late confertissime
punctatis, interstitiis crebre punctatis, incumbente pubescentibus.

Long. 3g- 5 millim.

Hah. Guatemala, Totonicapam 9000 to 10,500 feet (Champion).

APHODITJS. 87

Belongs to the same group as the preceding (Dr. Horn's Group K and Erichson's
Group N), from all the known species of which it differs by its deeper and coarser
sculpture. It also differs in the lesser inequality of the apical setae of the hind tibiae.
The setae are all short and at first sight appear equal, but on close examination of well-
preserved specimens a slight but distinct difference of length is evident. The reddish
spots on the reddish-brown elytra are ill-defined, but more distinct on some of the
interstices at the base ; in some examples the elytra appear vaguely tessellated
with red.

16. Aphodius euprosopus. (Tub. VI. fig. 14.)

A. inquinato (Fabr.) similis. Niger, nitidus, elytris glabris, flavo-testaceis, maculis oblongis discoidalibus et
plaga irregular! laterali nigris ; capite obsolete trituberculato, subtiliter sparsim punctulato, ciypeo leviter
sinuate et utrinque rotundato, macula utrinque laterali rufo-testaceo ; thorace sparsim sequaliter punctulato,
linea dorsali laevi, lateribus (praecipuo antice) flavo-testaceis ; elytris crenulato-striatis, interstitiis planis,
sparsim, lateribus et apice densius, punctulatis, humeris acute dentatis; pedibus subtus (tarsis apice)
pallide testaceis, femoribus medio nigris, Ms conspicue punctatis.

Long, 4-4^ millim.

Uab. Guatemala, Totonicapam, Quiclie Mountains [Champion).

Belongs to a group numerously represented in the temperate and boreal regions of
the Old World and in North America, with which it disagrees only in the apical setae
of the hind tibiae being short and nearly equal in length ; the usual elongated setae are
wanting, though some are a little longer than the others. The base of the thorax is
finely margined. In the number and arrangement of the black elytral spots it agrees
best with A. inquinatus, but the discoidal spots are all detached and oblong-quadrate
in shape : there are two on each of the second and fourth interstices and one (posterior)
on the sixth, the lateral larger spot forming an irregular vitta anteriorly on the sixth
to the eighth.

Our examples were captured at elevations of from 7000 to 10,500 feet.

b. Base of the thorax not margined.
* Ge7iw not prominent, obtuse.

17. Aphodius duplex. (Tab. vi. fig. 15.)

Quoad formam et colores A. brasiliensi (Casteln.) similis, sed multo minor. Mediocriter convexus, glaber,
nitidus, luteo-testaceus, capite thoraceque medio castaneis, elytris utrinque prope apicem vittulis duabus
obliquis fuscis (vittam luteo-testaceam includente) suturaque fusca; capite inermi, aequaliter discrete
punctulato, ciypeo antice subsinuatim truncate, genis parum prominentibus ; thorace toto punctulato, basi
utrinque obliquata, angulis obtusis sed distinctis ; elytris crenulato-striatis, interstitiis subplanis, punctu-
latis ; tibiis anticis estus ante dentes serrulatis et supra punctatis, posticis cum tarsis gracilibus ; corpore
subtus castaneo-fusco, fere laevi, pedibus antennisque luteo-testaceis. Elytrorum striae 2" et 3^ apice abbre-
viatae ibique 3*^ a 4"* valde distante, 4^ et 5^ approximatae.

.Long. 4 millim.

Ilab. Mexico, Jacale, Jaquila (Salle), Cerro de Plumas, Mexico city, Zacualtipan,
Jalapa, Huitzilac, Chilpancingo {Hbge) ; Costa Rica, Volcan de Irazu (Rogers).

88 LAMELLICOENIA.

Costa Rican examples are a little darker in colour, and have more distinctly convex
elytral interstices than those from Mexico. The species resembles A. hrasiliensis in
form and colour, and especially in the characteristic marking near the apex of the elytra ;
but it belongs, according to the received classifications of the genus, to quite a different
section : A. hrasiliensis having equal apical setae to the hind tibiae and a trituberculate
head, the base of the thorax remaining, as in A. duplex, immarginate. It must be
observed that the inequality of the apical setse is not the same in A. duplex as in the
A. prodromuis group, the long bristles are near the outside of the fringe and not sub-
alternately mingled with the short bristles.

An example from Costa Ttica is figured.

18. Aphodius panamensis. (Tab. VI. fig. 16.)

Aphodius panamensis, Harold^ Berl. ent. Zeitschr. 1859, p. 212 \

Anguste-oblongus, glaber, politus, piceo-fuscus, capite thoraceque subaenescentibus, thoracis lateribus et macula
media basali elytrorumque margine et interstitio 2° luteo-testaceis ; capite fere laivi, polito, clyjieo siuuato
et utrinque rotundato, mediocriter convexo, genis angulatis sed parum prominentibus ; thorace disco
subtilissime sparsim, lateribus grossius et densius, insequaliter punctulato, angulis postieis omnino rotun-
datis; elytris striatis, striis baud perspicue punctulatis, intersdtiis fere planis, subtilissime alutaceis ;
pedibus gracilibus, sparsim longe setosis, tibiis postieis extus brevissime carinatis. Elytrorum striae 1^-3""
solum apice liberse, interstitia convexa.

Long. 3|-4 miUim.

ffab. Panama i, Bugaba, David (Champion).

When this insect is viewed from above, the base of the thorax appears immarginate ;
but from behind obliquely the extreme edge is seen, with a lens, to be very finely
margined. In profusion in horse-dung on open savannahs in the low country
(Champion).

19. Aphodius guatemalensis. (Tab. VI. fig. 17.)

Parvus, oblongus, mediocriter convexus, glaber, iiitidus, piceo-niger, capite utrinque macula, tboracis angulis
anticis elytrisque vittis abbreviatis basalibus, macula humerali alterisque prope apicem, fulvo-testaceis,
pedibus rufo-piceis ; capite inermi, medio parum tumido, toto regulariter subdeuse punctulato ; clypeo
antice subsinuatim truncato, lateribus leviter rotundatis, ante genas verticaliter arcuatis ; thorace disco
sparsim subtiliter, lateribus densius grossius, punctulato, basin versus angulo obliquo, angulis distinctis
parum obtusis ibique subtilissime marginato; elytris subtiliter crenulato- striatis, interstitiis planissimis,
vix perspicue sparsim punctulatis ; antennis rufo-piceis, clava fusca ; pedibus postieis gracilibus, tarsia
articulo primo elongato. Elytrorum striae 2''-5"' sequaliter distantes, 2^ paullo abbreviata, '3^-5"^ aequales ;
interstitia usque ad apicem plana.

Long. 3-3| raillim.

Ilab. Guatemala, Quiche Mountains, Quezaltenango, Duefias, San Geronimo, San
Joaquin, Balheu (Champion). Many examples.

Belongs to a group of very small, closely allied species, which tend to form geogra-
phical varieties distinguished by colour and markings. Its chief characters are : —
(1) the finely impressed elytral strise, which are not squarely scored, but are simple lines

APHODIUS. 89

finely crossed by small crenulating punctures ; (2) the equidistance near the apex of
striae 1-5 ; (3) the very fine punctuation of the disc of the thorax and of the elytral
interstices.

The typical form here described is nearly black above, with a tawny spot on each
side of the head and at the apical angles of the thorax, and with tawny vitt^ on the
elytral interstices two, three, and four from the base, more or less abbreviated posteriorly,
a spot of the same colour on the shoulders, and sometimes a spot on the fourth inter-
stice towards the apex. The following are evidently colour races : —

Var. A. scotinus. Nigro-piceus, thoracis angulis anticis elytrorumque humeris fulvo-maculatia.

ffab. Mexico, Cordova (Salle), Jalapa, Sayula, Tacambaro, Juquila (Edge). Several
examples.

Bears the MS. name (now preoccupied for a described species) of .^. anthrax, Deyr.,
in the Salle collection.

Var. A. chiriquinus. Tulvescens, thorace disco elytrisque lateribus et apice castaneo-fuscis.

Mab. Panama, Volcan de Chiriqui (Champion). Several examples.

An example from Costa Rica (Bogers) is exactly intermediate between this form and
A. guatemalensis, type.

We figure a typical example from the Quiche Mountains.

20. Aphodius charmionus. (Tab. VI. fig. 18.)

A. guatemalensi proxime aiSnis : diiFert elytris flavo-testaceis, sutura, lateribus plagaque apicali (macula flava
apud interstitium 4™ includente) nigrjs ; capite thoraceque nigris, nitidis, erebrius sequaliter punctatis, illo
macula laterali, hoe macula humerali, rufo-testaceis ; elytris subtiliter crenato-striatis, interstitiis pauUo
convexioribus fortiusque punctulatis ; pedibus testaceo-rufls. Elytrorum stria 5» apice multo abbreviata.

Long. 3| millim,

Hab. Mexico, Jalapa (Edge). Many examples.

21. Aphodius diminutus.

A. guatemalensi affinis. Glaber, nitidus, piceo-niger, capite thoraceque lateribus fulvo-testaceis, elytris castaneo-
rufis basi pallidioribus ; capite inermi, vix convexo, toto aDqualiter punctulato, clypeo apice obtuse sub-
sinuatim truncato ; thorace sequaliter sat sparsim punctulato ; elytris subtiliter exarato-striatis, striis
minutissime vix crenato-punetatis, interstitiis pauUo convexis, punctulatis ; corpore subtus pedibusque piceo-
testaceis. Elytrorum striae sicut in A. guatemalensi, sed interstitiis pauUo convexioribus striisque 4*, 8* et
5% 6^ ante apicem conjunctis.

Long. 2|-3| millim. .

Eab. Guatemala, El Tumbador, Duenas, San Geronimo, Chiacam (Champion).

22. Aphodius erythrinus.

A. diminuto affinis et simillimus, sed certe diiFert thorace intequaliter punctato, punetis majoribus et minoribus
conspicue intermixtis. Differt autem elytris relative brevioribus, quam caput cum thorace pauUo

BIOL, centr.-amer., Coleopt., Vol. II. Pt. 2, September 1887. NN

90; LAMELLICOENIA.

longioribus. Rufescenti-Mvus, capite medio thoracisque disco castaneo-fuscis ; capite striisque elytrorum
sicut in A. diminuto. .

Long. 3 millim.

Hob. Panama, Volcan de Chiriqui (CAamp/oTi-).

23. Aphodius xantlius. (Tab. VI. fig. 19.)

Parvus, convexus, glaber, nitidus, fulvo-testaceus, elytris flavo-testaceis, sutura pauUo obscuriore ; capite inermi,
medio levifcer convexo, subtiliter sparsim punctulato, clypeo obtuse sinuato-truncato ; thorace sicut in
A. guatemalensi, angulis posticis distinctis sed obtusis basique prope angulum obliquo, recto, supra medio
Isevi, lateribus subtilissime punctulatis, punctis sparsis grossis intermixtis ; elytris subtiliter crenulato-
striatis, interstitiis usque ad apicem planis Isevibus, striis I'^-S" prope apicem sequidistantibus nee abbreviatis ;
tarsis posticis graeilibus ; oculis supra magnis.

Long. 3 millim.

Hah. Panama, Volcan de Chiriqui, Bugaba (Charnpion).

Many examples. Belongs to the A. rubeolus group, of North America.

24. Aphodius bifrons. (Tab. VI. fig. 20.)

Oblongus, minus convexus, nitidus, glaber (setis nonnullis prope elytrorum apicem exceptis), margine sparsim
longe setosus, flavo-testaceus, vertice thoracisque disco leviter infuscatis ; capite piano, parce punctulato,
clypeo antice medio concavo, profunde sinuato et valde bidentato, dentibus latis et recurvis, genis nuUo
modo prominentibus ; thorace sparsim et regulariter punctato, angulis posticis rotundatis ; elytris subtiliter
crenulato-striatis, interstitiis alutaceis parce punctulatis, striis prope apicem minus impressis ; tarMs
posticis graeilibus ; antennis flavo-testaceis ; oculis supra magnis.

S . Tibiae anticae intus flexuosse.

Long. 4i millim.

Hah. Mexico, San Pedro in Coahuila {Dr. Palmer), Villa Lerdo in Durango (Hoge).

A highly peculiar species, but fitting best this group than any other yet indicated in
the genus. The base of the thorax is very finely margined on the extreme edge, but
the inner edge of the exceedingly fine groove turns off in a curving plica before reaching
the hind angle.

b. Gence acutely pointed.

(Group including the European species A.rufipes, A. depressus, A. luridus, and others.)

25. Aphodius fuliginosus. (Tab. VI. fig. 21.)

Aphodius fuliginosus, Harold, Berl. ent. Zeitschr. 1863, p. 327 \

Hah. Mexico ^ Guanajuato, Puebla [Salle), Oaxaca {Salle, Hoge), Eefugio in Durango
{Hoge).

Many examples, including the types of Von Harold. A specimen from Oaxaca is
figured.

26. Aphodius hogei.

A.fuliginoso affinis ; paullo minor, sat anguste oblongus, niger, nitidus, elytris livido-castaneis, subnitidis ; capite
fere Isevi, genis plus minusve productis, acutis, thorace medio basi lobato subtiliter sparsim (lateribus antice

APHODIUS. 91

et postiee grossius) punctulato ; elytris crenulato-striatis, interstitiis planis, alutaceis, subtilissime sparsim

punctulatis ; femoribus 4 posterioribus flavo-testaceis.
c? . Tarsi intermedii graciles, unguibus basi intus obtuse deutatis.
$ . Thorax paullo crebrius punctulatus. Ungues omnes simplices.
Long. 6 millim.

Hah. Mexico, Las Vigas, Mexico city, Huitzilac, Pachuca (Hoge).

A large number of examples. '

Var. A. durangoensis. Paullo major. 7 millim.

Hob. Mexico, Eefugio in Durango (Edge).

■ Closely allied to A. ficUginosus, but less opaque, the head and thorax being always
shining and black, and the elytra having an oily gloss, which, however, is shown in less
degree in some examples of A. fuliginosus. But a more definite character exists in the
structure of the tarsi of the middle pair of legs in the male : in A. fuliginosus the tarsi
are much shortened, with nodose joints 2-4, and thickened claws toothed at the base ;
in A. hogei they are slender, nearly as in the hind pair, the claws remaining toothed
within at the base. Durango specimens are glossy and considerably larger in size ; in
the numerous examples examined I find no other diff"erence.

27. Aphodius mexicanus.

Aphodius mexicanus, Harold, Berl. ent. Zeitschr. 1862, p. 382 ^ -, 1863, p. 330.

Hab. Mexico, Parada, Oaxaca i, Puebla, Etla, Juquila {Salle), Mexico city (Flohr),
Oaxaca {Edge) ; Guatemala, Totonicapam (Champion).

There are many examples in the Salle collection, including a type specimen bearing
a label in Von Harold's handwriting. According to these the species varies considerably :
in size from 4J to 6 millim. ; in colour from black to livid-castaneous ; in the depth
and strength of the punctured striee, which are sometimes deeply gouged with bilineated
bottoms, and in rare cases quite superficially impressed ; in the hind angles of the thorax
— sometimes rounded and sometimes nearly rectangular ; and in the truncation of the
clypeus being, especially in small examples, scarcely perceptible.

28. Aphodius gravidus.

Aphodius gravidus, Harold, Berl. ent. Zeitschr. 1863, p. 329 \

Sah. Mexico {ex coll. Deyrolle i).

This species is not contained in our collections.

29. Aphodius puncticeps.

Aphodius puncticeps, Harold, Berl. ent. Zeitschr. 1862, p. 383 ^; 1863, p. 330.
Eab. Mexico, Chalchicomula {Salle ^).

The type specimen in the Salle collection is the only one I have seen.

NN 2

92 LAMELLICORNIA.

30. Aphodius villosipes.

Aphodim villosipes, Harold, Berl. ent. Zeitschr. 1862, p. 384^; 1863, p. 330.
Ilah. Mexico^, Osixsica. (Salle).

31. Aphodius luridiventris.

Aphodius luridiventris, Harold, Berl. ent. Zeitschr. 1862, p. 385 S' 1863, p. 330.
Eah. Mexico 1, Cinco Seiiores, Yolos (Salle), Mexico city (Hoge).

The Salle collection contains no examples of this or the preceding species labelled by
the describer ; but there is a series of each named by M, Salle, all of which seem to me to
belong to one and the same species. As none of the differential characters mentioned
by Von Harold hold good, I am inclined to think they are not distinct. All the specimens
have convex elytral interstices, and a more or less distinct tooth at the inner base of the
tarsal claws in all the legs. The punctuation of the upper surface varies indefinitely,
and the silky surface is more or less perceptible in all*.

SAPEOSITES.

Saprosites, Redtenbacher, Fauna Austriaca, Kafer, 2nd ed. p. 436 (1858).

This genus was founded by its author on a minute Aphodiide found in orchid-
houses at Schonbrunn, and supposed to have been imported from America ; Yon Harold
gives the locality as Colombia. Kedtenbacher omits to mention the characters distin-
guishing the genus from Eujjaria^ and from the species belonging to the subsequently
proposed genus Atwnius : these, according to Von Harold (incidentally stated in his
diagnoses of various species), are the traces of transverse carinae on the outer side of
the four hind tibiae and the dentiform projections on their apical margin ; but there is
little doubt that the numerous species referred to Saprosites by Von Harold are really
congeneric with Eedtenbacher's type. I would, however, exclude such species as
Saprosites sulcatus, Harold, which have a simple fringe of bristles to the apical raaro-in
of the four hinder tibiae.

Upwards of twenty species of Saprosites have been recorded. The genus has a wide
range, including, according to Von Harold, besides Tropical America and Tropical Asia,
Japan, New Zealand, and some of the tropical islands of the Pacific. The flattened
species which I observed in the Amazons region were found under the close-fittino- bark
of trees, in company with similarly flattened Cossonidae and Cucujidee f .

' ' ~~ — ' — » " '■■■ — -— —

* The name Aphodius duplex given above (p. 87) has been previously applied by Leconte to a I^orth- American
species of this genus ; I now propose to change the specific name to opisthius.

t In further elucidation of the group of Saprosites, comprising the bark-living species, I append diagnoses of
the following curious forms : —

Saprosites cancellatus.

Sublinearis, depressus, castanoo-ruf us, glaber ; capite minus convexo, crebre punctulato, clypeo antice transversim

SAPROSITES — EUPAEIA. 9S

1. Saprosites parallelus.

Saprosites parallelus, Harold,, Col. Hefte^ i. p. 81 \

ffab. Panama, Volcan de Chiriqui (Champion). — South America, Colombia i.

A large species with finely punctured head, coarsely crenate-striate elytra, and minute
accessory tooth between the middle and upper teeth of the anterior tibiae.

2. Saprosites cossonoides. (Tab. VI. fig. 22.)

Oblongo-linearis, depressus, niger, nitidus, capite antice pedibusque rufo-piceis ; capite minus convexo, fere toto
granulato et inter graniila punctulato ; thorace subquadrato, lateribus leviter rotundatis, sat dense et
perspicue punctulato, punctis majoribus et minoribus intermixtis, basi immarginata ; elytris exarato-striatis;
striis punctulatis, interstitiis latis, usque ad apicem planis, prope apicem solum subtiliter punctulatis
tibiis 4 posterioribus extus breviter carinulatis, apice longe spinosis ; anticis dentibus tribus sequaliter
distantibus.

Long. 2-3| millim.

Hah. Mexico, Cordova (Salle) ; Guatemala, San Juan in Vera Paz, Tamahu, San
Geronimo, Zapote [Champion) \ Panama, Volcan de Chiriqui (Champion).

The apical ventral segments, as in the allied S. aspericejps, Har., are soldered together
and their sutures obliterated, with the suture of the apical segment laterally marked
with a deep fovea.

EUPAEIA.

Euparia, Lepeletier de Saint-Fargeau and Serville, Encycl. Meth. x. p. 357 (1825) ; Harold^ Col.
Hefte, vi. p. 19.

A genus peculiar, so far as at present known, to America, and found in the temperate
zones North and South, as well as between the tropics. The expansion of the sides of
the thorax seems the chief, if not the only, character which distinguishes it from
Atcenius. Eleven species have been described.

rugoso ; thorace exacte quadrato, sat dense grosse punctato, punctis minoribus intermixtis, basi medio im-
marginata ; elytris late exarato-striatis, striis eleganter cancellato-punetatis, interstitiis quam striae parum
latioribus, planis, prope apicem angustis subcarinatis ; tibiis 4 posterioribus brevibus, latis compressis extue
breviter carinatis, anticis dentibus sequaliter distantibus.
Long. 2h miUim.

Hah. Amazons, Ega ; under bark.

Saprosites corticalis.

Sublinearis, depressus, castaneo-rufus, glaber ; clypeo antice crebre granulato, fronte et vertice toto subcrebre
punctulatis ; thorace latiore, quadrato, dorso planato, lateribus parallelis, sat crebre suba3qualiter punctato ;
elytris exarato-striatis, striis punctulatis, interstitiis planis, quam striae duplo latioribus, apice paullo
convexioribus ; tibiis sicut in 8. cancellalo.

Long. 3 millim.

Hab. Amazons, Ega ; under bark.

94 LAMELLICOENIA.

1. Euparia tuberculata. (Tab. Vl. % 23.)

Brevis et lata, piceo-nigra, subnitida ; capite grosse et dense punctato, clypeo medio leviter sinuato ; ttiorace
valde transverse, angulis omnibus subrectis, basi immarginata, prope angulos sat profunde sinuato, dorso
antice punctulato postice grossius punctato, lateribus concavis explanatis, grossissime reticulato-punctato ;
elytris ovatis, humeris valide dentatis, lateribus rotundatis, punctato-striatis, interstitiis convexis, 2°-4"'
versus apicem, S^-O"" toto, grosse seriatim tuberculatis ; tibiis tarsisque 4 posterioribus dense pubescentibus,
tibiis longitudinaliter pluricarinatis, apice extus hand spinosis ; corpora subtus femoribusque toto sparsim
punctatis ; mesosterno carinato.

Long. 5j millim.

JIab. Panama, Bugaba (Champion). One example only.

ATiENIUS.

AtcBnius, Harold, Col. Hefte, ii. p. 100 (1867) ; Horn, Trans. Am. Ent. Soc. 1871, pp. 284, 294.
Euparia (Serv.), pars, Burmeister, Stett. ent. Zeit. 1877^ p. 408.

About eighty species of this genus have been described, all of uniform black or
rufo-piceous colour, and, as Dr. Horn justly observes, in many cases difficult to discri-
minate. Although characteristic of the American fauna, tropical and temperate, the
genus is not w^holly restricted to the New World, several species being recorded from
widely distant regions, such as Abyssinia, the Malay Archipelago, and Australasia.
Most of the species obtained by Mr. Champion were found in sandy places, especially
about the banks of streams.

I. Clypeus with the sides of the emargination broadly rounded.

1. Atsenius strigatus.

Aphodius strigatus, Say, Journ. Ac. Nat. Sci. Phil. iii. p. 212 (1823)^ ; Complete Writings, ii. p. 137.
Atanius stercorator (Fabr.), var., Horn, Trans. Am. Ent. Soc. 1871j p. 286^.
Euparia cognata, Lee. Proc. Ac. Phil. 1858, p. 65 (teste Horn).

Hah. NoETH Ameeica, United States ^ ^. — Mexico, Guajuco in Nuevo Leon [Dr.
Palmer)^ Ventanas in Durango, Mexico city, Tlacotalpam, Mazatlan, Iguala, Villa
Lerdo, San Juan Bautista in Tabasco {Edge).

2. AtaBnius liogaster.

A. strigato (Say) proximo affinis et simillimus. Minor, oblongus, convexus, nitidus ; capite mediocriter convexo,
clypeo leviter sinuato, transversim pauUo strigoso, vertice plerumque sparsim subtiliter punctato ; thorace
sparsim irregulariter punctato, punctis minoribus interdum intermixtis, spatio laterali laevi polito, basi
marginata ; abdomine lievi, impunctato, interdum punctis nonnuUis lateralibus ; elytris crenato-striatis,
interstitiis pauUo convexis, politissimis ; mesosterno opaco, argenteo-pubescente, medio breviter carinato.

S ?. Thorax latior, paullo crebrius punctatus, angulis posticis valde obtusis, sed distinctis.
9 ?. Thorax angustior, lateribus leviter arcuatis, angulis posticis omnino rotimdatis.

Long. 4-5 millim.

Hah. Mexico, Puebla, Vera Cruz {Salle), Jalapa, Acapulco, Mazatlan, Villa
Lerdo, Chilpancingo, Tapachula {Edge) ; Guatemala, San Geronimo, Champerico,

Paraiso, Paso Antonio {Chamj)ion); Nicaeagua, Chontales (Janson); Panama, Bugaba
(Champion).

Var. A. castaniellus. Oblongus, convexus, potius subcylindricus, castaneo-rufus ; tlioraee punctis magnis paucis
antice et lateribus late dispersis, antice subtilissime punctulatis, angulis posticis c? obtusis, $ rotuBdatis ;
elytris profundius striatis, interstitiis minus crenatis, striis apice profundioribus fundo cancellatis, inter-
stitiis plus minusve subtilissime punctulatis ; abdomine medio c? sparsim punctulato, $ Isevi, lateribus
grosse pauciter punctatis ; mesosterno carina elongata vel nulla.

Long. 4 millim.

Hah. Guatemala, Zapote, San Geronimo (Champion).

Notwithstanding its distinct facies A. castaniellus cannot be regarded as more than
a variety of A. liogaster, examples intermediate in one or other of its characters
being found in the same localities.

I have some hesitation in separating A. liogaster from A. strigatus (Say), in which
also the sexes differ in the form of the hind angles of the thorax ; but on comparing a
large series with the numerous examples of A. strigatus before me (including several from
Texas and more northerly localities), it shows a constant difference in its rather smaller
size, deeper elytral strise and more convex interstices, and smoother ventral segments.
The sculpture of the head and thorax varies considerably, but preserves the same
general character, the punctuation on the thorax being always sparser than in A. cribri-
thorax, larger and smaller punctures being intermingled, and spaces on the sides and
sometimes near the base being quite smooth. The humeral callus and sides of the
elytra are also quite free from punctures.

3. Atsenins cribrithorax.

A. liogastri simillimus, sed differt ventro crebre punctate ; ab A. strlgato differt statura minore, thorace crebrius,
lateribus (prsecipue apud S ) confluenter, punctato elytrisque callo humerali interstitiisque versus latera et
apicem punctulatis.
(S . Thoracis angulis posticis distinctis basique juxta angulum utrinque leviter sinuato.
$ ?. Thoracis angulis posticis obtusis, subrotundatis, sculpturaque sparsiore, elytrorum lateribus minus

punctulatis.
Long. 3^-41 millim.

Hah. Mexico, Cordova (Salle, Hoge), Jalapa (Hoge) ; Guatemala (Salle), near the

city (Salvin, Champion), El Reposo, Coatepeque, Zapote, Capetillo, Duenas, Balheu,

Chiacam, Cubilguitz, Tamahu, Sinanja, San Geronimo (Champion)-, Nicaeagua,

Chontales (Janson) ; Panama, Volcan de Chiriqui, San Lorenzo, Los Eemedios

(Champion).

In the punctured interstices at the sides and apex of the elytra, this species agrees
with Von Harold's description of A. stercorator (Fabr.) ; but I have not seen any
examples from Brazil, which country he includes in the range of his A. stercorator,
and there can be little doubt that his description refers to a rather larger species,
described further on as A. strigicauda. Among the very numerous examples I have

96 LAMELLICOENIA.

examined of A. crihrithorax there are some which nearly bridge over the difference
between it and A. strigatus and A. liogaster.

I have adopted the name given to the species in the Salle collection.

4. Atsenius strigicauda. (Tab. VI. fig. 24.)

? Atanius stercorator, Harold, Berl. ent. Zeitschr. 1867, p. 281; Col. Hefte, xiii. p. 70 (nee Eabr.).
Hah. Mexico, Cordova, Tuxtla (Salle), Jalapa (Edge) ; Guatemala, Paso Antonio
{Champon); Nicaragua, Chontales {Belt, Janson); Panama (M'Leannan). — South
Brazil ; Amazons {Bates) ; Antilles, St. Thomas.

The examples from the above-named localities, which I have examined and found
closely to agree, appear to be referable to Von Harold's A. stercorator, which unfor-
tunately is totally different from the Fabrician species, as proved by the type still in
fair preservation in the Banksian collection at the British Museum. The present
species was carefully and well described by Von Harold, with the exception, if I am not
mistaken, that he overlooked the fine strise on the sides of the elytral interstices near
the apex ; these striae exist in all the specimens I have examined, and present a feature
of some interest, as they are further developed in a series of allied species, and thus
display in an incipient form an important group character. In all its other characters the
species scarcely differs, except in its greater size, from the male of our A. crihrithorax.

A.* stercorator (Fabr.) belongs to the same wider group as A. strigicauda (thorax
margined at the base and clypeus rounded on each side of the anterior sinuation) ; it is
a species of about the same size (6 millim.) and shape, but it is of a dull sooty-black
colour, with the thorax closely and evenly punctured throughout, and the elytra not
crenate-striate but sharply sulcated with an elegant catenulate-punctuation in the
bottom of the furrows and the interstices convex, almost culminated. A remarkable
distinguishing character of the species is a series of tubercles or denticulations at regular
intervals on the inner side of the four hind tibiae. Besides the Fabrician type captured
by Sir Joseph Banks at Rio Janeiro on Cook's first voyage, the British Museum possesses
a second example taken by Darwin in the same locality, during the voyage of the
' Beagle.' I have seen other examples from Rio Janeiro in Mr. A. Fry's rich collection.

We figure an example of ^. strigicauda from Cordova.

5. Atsenius scutellaris.

Atcenius scutellaris, Harold, Col. Hefte, i. p. 8.2 ^ ; Ann. Soc. Ent. Belg. xix., Compt. Rend. p. xcvi*.
7 Euparia atramentaria, Erichs. Archiv fiir Naturg. 1847, i. p. 110.

JSah. Mexico, Ventanas, Chilpancingo, Acapulco, Tapachula (Hoge); British
Honduras {Blancaneaux) ; Guatemala, San Geronimo {Chainjpion) ; Nicaragua,
Chontales {Janson). — South America, Colombia, Venezuela ^j West Indies 2.

Similar in general form and size to A. strigicauda ; the thorax rather more closely and

AT^NIIJS. 97

evenly punctured ; the elytral interstices convex, and behind gradually more carinated
with conspicuous punctures on each side ; the scutellum concave, with a smooth carina
down the middle ; and the outer apex of the four hinder tibiae produced into a long
acute spine. The species is possibly the Euparia atramentaria^ Erichs., of Peru, but the
absence of mention of the sculpture of the scutellum leaves the matter in uncertainty.

6. Atsenius euglyptus.

A. scutellari affinis et similis, sed scutello piano, medio basi foveolato ; capite rufescente, toto sequaliter subdense
punckilato ; thorace punctis majoribus et minoribus subdense intermixtis, lateribus grossius confluenter
punctatis, basi subtiliter marginata utrinque versus angulum sinuato-truncata, Idteribus antice late depressis
et puncto magno ; elytris eleganter exarato-striatis et in strias punctatis, interstitiis (versus humeros
punctulatis exceptis) laevibus, l"-4™ dimidio basali planis, cseteris convexis, versus apicem acute carinatis ;
tibiis 4 posticis apice longe spinosis.

Long. 5| millim.

Eab. Mexico, Las Yigas (Edge),

Evidently very near Euparia cafenulata, Erichs., of Peru, from which it differs in the
plane interstices of the elytra.

7. Atsenius perforatus.

Ataenius perforatus, Haroldj Col. Hefte^ i. p. 83 \

Hah. Mexico, Cordova {Salle) ; Guatemala, near the city, Aceituno, San Geronimo,
Balheu, Cubilguitz {Champion) ; Pai^ama, Bugaba, Volcan de Chiriqui, Caldera {Cham-
pion). — South America, Colombia ^.

A little larger and more convex than A. strigicauda, and with much more strongly
punctured thorax; the elytral interstices smooth, towards the apex carinated, and
scored with a fine stria on each side. The scutellum has at the base two oblong
fovese.

8. AtsBiims complicatus.

Atcenius complicatus, Harold^ Col. Hefte^ v. p. 102 ^.

Hah. Mexico, Chilpancingo {Hbge)', Guatemala, Zapote {Champion). —^omn America,
Brazil i.

Closely allied to A. perforatus and A. euglyptus, but the elytral interstices throughout
acutely cariniform, and the surface beset with erect bristles. In consequence of the
narrowed interstices the lateral scored line on the side of each, seen in a rudimentary
form in most of the allied species, has here become a broad furrow separated from the
stria proper by a lesser carina. The scutellum has in the middle of the base a large
triangular opaque fovea. The base of the thorax is not margined, but in some examples
a fine impressed line is seen on the deflexed edge in the middle.

BIOL, ceotr.-amer., Coleopt., Vol. II. Pt. 2, Septemher 1SS7. 00

98 LAMELLICOENIA.

9. Atsenius hirsutus.

Atmnius hirsutus, Horiij Trans. Am. Ent. Soc. 1871, p. 288 \

Ilab. NoETH America, Arizona i. — Mexico, Pinos Altos in Chihuahua (Buolian-
Heplurn), Presidio (Forrer).

Taken in abundance by Forrer. His specimens agree perfectly with Horn's descrip-
tion, and vary very little.

10. AtsBnius setiger.

Oblongus, niger, nitidus, thoracis elytrorumque lateribus rufo-castaneis pedibusque piceo-rufis, elytris griseo-
setosis ; capite mediocriter convexo, subtiliter transversim granulate -rugoso, clypeo sat anguste sinuato,
angulis subacutis ; thorace disco anteriore excepto grosse sparsim punctato et subtilissime punctulato, angulis
posticis rctundatis ; scutello Isevi ; elytris profunde crenato-striatis, striis versus apicem magis exaratis et
fundo transversim punctatis, interstitiis subplanis, Isevibus ; ventro Igevi, lateribus baud profunde sparsim
punctatis.

Long. 3|-4| millim.

Hab. Mexico, Chilpancingo, Cuernavaca, Acapulco {Edge).

I can detect very little difference of form which can be supposed to be sexual. The hind
angles of the thorax are in all examples rounded. The erect grey bristles of the elytra
are numerous only over the apical half. The species comes nearest to A. hirsutus, Horn,
the emargination of the clypeus and the distinct angle on each side being very similar
in both ; but the head and thorax are much more sparsely and finely sculptured.

11. Atsenius limbatus.

A. strigato brevior et convexior preecipue elytris mox a basi convexis ; nigro-pieeus, nitidus, calvus, thoracis ely-
trorumque lateribus indefinite castaneo-rufis ; capite Isevi vel subtilissime punctulato, clypeo medio anguste
et sat profunde sinuato, extus valde rotundato ; tborace grosse irregulariter punctato, angulis posticis valde
obtusis ; elytris fortiter striatis, striis in fundo punctulatis, interstitiis convexis, Isevibus, versus apicem
angustis ibique l''-^'" elongatis, 5°-6° abbreviatis: corpore subtus glabro, abdomine toto punctato, mesosterno
opaco.

Long. 4| millim.

Hah, Mexico, Presidio (Forrer).

Agrees with the preceding in the castaneous borders of the thorax and elytra; but
perfectly glabrous, and the clypeus differing in the sides of the emargination being very
obtusely rounded, not angulated.

12. Ataenius capitosus.

Atcenius capitosus, Harold, Col. Hefte, i. p. 83 \

Hah. Mexico i, Cordova, Tuxtla (Salle), Las Vigas (Edge) ; Beitish Hondueas, Belize
(Blancaneaux) ; Guatemala, El Tumbador, Las Mercedes, Cerro Zunil, Mirandilla,
Zapote, Cahabon (Champion) ; Nicaeagua, Chontales (Belt, Janson) ; Panama, Bugaba
(Champion). — South Ameeica, Ecuador, Amazons ; Antilles, St. Thomas.

ATtENIUS. 90

The largest species of the genus, 7-8 millim. long. The thorax is not margined at
the base, except near the lateral angles.

13. Atasnius imbricatus.

Aphodius imbricatus, Melsh. Proc. Ac. Phil. 1844, p. 136 \
Atanius imbricatus, Horn, Trans. Am. Ent. Soc. 1871, p. 285 ^.
Ataenius sordidus, Harold, Col. Hefte, v, p. 103 ^.

Hah. NoETH Ameeica, Pennsylvania i. — Mexico 2^, Guanajuato {Salle)., Jalapa,
Mazatlan (//o^e); YLoi^j)\j'SiK^^ {Salle). — South Ameeica, Amazons 2, Brazil 2; Antilles,
Cuba 2.

14. AtsBnius gracilis.

Oxyomus gracilis, Melsh. Proc. Ac. Phil. 1844, p. 137 ^.

Atcenius gracilis, Harold, Berl. ent. Zeitschr. 1867, p. 281 ^j Chevr. Ann. Soc. Ent. Er. 1864, p. 414' ;
Horn, Tr. Am. Ent. Soc. 1871, p. 286*.

Hah. NoETH Ameeica ^ ^ ^. — Mexico, Northern Sonora {Morrison), Presidio {Forrer),
Cordova {Salle), Vera Cruz {Salle, Edge), San Juan Bautista in Tabasco {Hoge) ;
Guatemala, near the city, Capetillo, Cubilguitz, Paso Antonio {Champion) ; Nicaeagua,
Chontales {Janson). — South Ameeica 2 ; West Indies ^ ^.

In its narrow sublinear form this insect approaches the species of Section II. The
outline of the clypeus is different from that of A. strigatus and its allies, for although the
sides of the emargination are not pointed, they are shghtly angulated and not broadly
rounded. A. gracilis may be distinguished from other small and narrow species by
the more or less distinct dorsal furrow of the thorax.

II. Clypeus acuminated or dentate on each side of the emargination.

15. Atsenius figurator.

Atmnius Jigurator, Harold, Col. Hefte, xii. p. 24 \

Hah. NoETH Ameeica, Louisiana 1. — Mexico, Presidio {Forrer), Cordova {SallS),
Frontera in Tabasco, Zacualtipan, Durango city {Hoge).

A sublinear species with polished, impunctate, and flat elytral interstices. Harold did
not include it in the group with bidentate clypeus ; but the numerous examples which
I have examined, and which otherwise agree with his description, show the points on
each side of the emargination very conspicuously.

16. Atsenius polyglyptus.

Oblongus, mediocriter convexus, niger, obscurus, parum nitidus ; capite postice crebre punctulato, medio con-

00 2

100 LAMELLICOENIA.

vexo sublsevi, lateribus confluenter punctato quasi corroso, clypeo ruguloso, rufescente, minute bidentafco ;
thorace dense regulariter punctato, basi marginata, angulis posticis rotundatis ; scutello rugoso-opaco,
margine Isevi ; elytris subtiliter catenulato-punctato-striatis, interstitiis pauUo convexis, latis, intus grosse
crenato-punctatis, extus seriatim punctulatis et leviter carinatis, medio leevibus (lateralibus toto punctatis),
prope apicem angustis et punctatis ; abdomine, metasterno femoribusque sat dense punctatis, mesosterno
opaco griseo-pubescente, inter coxas carinato.
Long. 8-85 millim.

Hah. Guatemala, near the city, Capetillo, Duenas, Zapote {Champion). A large
number of examples.

Similar at first sight to A. gracilis^ but a trifle broader and more convex, and the
thorax wanting the impressed dorsal line characteristic of that species. Allied to
A. SGulptilis and A. steinheili, Harold, but smaller and different in the sculpture of the
elytra.

Var. A. intermedius. Elytra et tborax sicut in A. polyglypto typo, sed capite sicut in A. scalptifronte creber-
rime subconfluenter punetulato, medio longitudinaliter substrigoso.

Hab. Panama, Yolcan de Chiriqui (Champion). Two examples.

Var. A. jalapensis. Thorace dorso minus dense punctato (lateribus crebre confluento-punctatis) elytrorumque
interstitiis extus uniseriatim conspicue punctatis, convexis, nee carinatis.

Hab. Mexico, Jalapa (Edge).

Yar. A. Meronymi. I^itidior, semper piceo-rufus vel castaneus ; thorace disco subdisperse, lateribus crebriua
punctatis ; elytris subtilius sculpturatis, interstitiis extus leviter convexis (conspicue uniseriatim punctatis);
ventro punctato, metasterno femoribusque subtiliter et sparsim punctulatis.

Hab. Guatemala, San Geronimo (Champion). Numerous examples.

17. Atsenius scalptifrons. (Tab. VI. fig. 25.)

Oblongus, mediocriter convexus, fuligineus, opacus, capite creberrime confluenter punetulato, medio longitudi-
naliter substrigoso, clypeo pauUo Iseviore granulato-rugoso ; thorace creberrime subconfluenter punetulato,
linea dorsali leviter impressa ; elytris subtiliter catenulato-punctato-striatis, interstitiis intus planis crenatis,
extus anguste carinulatis et seriato-punctulatis ; humeris spina magna armatis : corpore subtus femoribusque
sat crebre punctatis.

Long. 3| miUim.

Hab. M.^.xiGO, Coidov^ (Salle) ; Gvatemala, near the city (Champion).

Evidently allied to A. steinheili, Harold, from Colombia, but differing in the peculiar
sculpture of the head, the close punctures of the vertex running into fine longitudinal
rugse on the forehead and leaving only the margin of the clypeus a little smoother,
with a few transverse granular wrinkles. The sculpture of the elytra would agree
pretty well with the description of A. steinheili if we take the " tief und ziemlich breit
gestreift " of Yon Harold as meaning the superficial appearance only ; for the striae
proper are narrow, and it is only the elevation of the outer side of the interstices into

AT^NIUS. 101

narrow carinse which produces the effect of broad striae, part of each interstice being
depressed together with the striae.

We figure a typical example from Cordova.

18. Atsenius carinator.

Atcenius carinator, Harold^ Col. Hefte, xii. p. 20 \

Hab. Panama, Bugaba, David {Champion). — South Amekica, Venezuela ^.

Differs from A. scal'ptifrons, to which it is very closely allied, by the humeral spine
of the elytra being, as usual in the group, very short. The carinse of the interstices
are, besides, much higher and narrower and granulated, the remainder of each inter-
stice, with its feebly carinated striae, forming thereby broad furrows.

Mr. Champion's specimens are rather smaller (2J millim.) than the size (3J millim.)
given by Von Harold.

19. Atseniiis abditus.

Aphodius ahditus, Haldem. Journ. Ac. Phil. 1848^ p. 106 ^
Atcenius abditus, Horn^ Trans. Am. Ent. Soc. 1871, p. 289 ^
Atanius attenuator, Harold, Col. Hefte, xii. p. 22 ^

Hah NoETH Ameeica, United States ^ ^. — Mexico ^, Northern Sonora (Morrison),
Nuevo Laredo (Edge), Presidio {Forrer).

Of more elongate form (the elytra especially relatively longer) than A. polyglyptus
and its allies, in this respect approaching A.figurator. The sculpture above and beneath
is very similar to that of A. jpolyglyptus, var. hieronymi, but the line of fine punctures
along the outer side of the interstices is less conspicuous and often confused. The
following appears to be a var. ; it was received, together with more typical examples,
from Belfrage, and communicated to me by Von Harold.

Var. A. texanus, Harold, Col. Hefte, xii. p. 23. Thorace antice sublsevi elytrorumque interstitiis convexis.

Hab. NoETH Ameeica, Texas (Belfrage).

20. AtsBnius inops.

Atcenius inops, Horn, Trans. Am. Ent. Soc. xiv. p. 73 (March 1887)'.

Eab. NoETH Ameeica, Arizona^ (Morrison). — Mexico, Northern Sonora (Morrison).

Numerous examples sent by Morrison. This insect differs from A. abditus in the
rather sparser puncturing of the sides of the thorax and the somewhat flatter elytral
interstices, and, what is more important, in the shortness of the basal joint of the four
posterior tarsi. The colour is always reddish-testaceous, shining. Length 4 millim.

102 LAMELLICOENIA.

21. Atsenius mariarnm.

Brevius, oblongo-ovatus, valde convexus, postice pauUo ampliatus, niger, nitidus, femoribus rufis ; capite Isevi,
clypeo profunde triangulariter emarginato, utrinque angulato et breviter dentato, sparsim transverse rugn-
loso ; thorace transversim quadrato, angulis posticis rotundatis, laevi (punctis nonnullis versus angulos
anticos exceptis), basi late sulcato-marginata ; elytris profunde catenulato-striatis, interstitiis passim vix
convexis, impunctatis, intus perparum crenatis, 4° apice abbreviate ; tibiis 4 posticis apice valde dilatatis
et extus robuste spinosis, intermediis dimidio basali extus serratis ; tarsis articulo basali mediocriter
elongato ; ventre Isevi, segmentis duobus apicalibus margine anteriore grosse crenato-p'unctatis.

Long. 5| millim.

Hab. Mexico, Tres Marias Islands (Forrer), Manzanillo (Hoge).

By its somewhat shortened hind tarsi this species approaches the genus Psammodius ;
the hind tibiae, however, are prolonged into a spine at their outer apex, and the spurs
long and tapering as in Atcenius.

EHYSSEMUS.

Rhyssemus, Mulsant, Col. de France, Lameliicornes, p. 314 (1842) ; Erichson, Ins. Deutschl. p. 909 ;
Horn, Trans. Am. Ent. Soc. 1871, p. 290.

About five-and-twenty species of this genus have been described. They are spread
over the warmer temperate and tropical zones of the Old World, including Australia,
Madagascar, and the Malay Archipelago ; but in the New World seem confined to the
temperate portions of North America. The following, from Northern Mexico and
Guatemala, is, however, an exception.

1. Ehyssemus cristatellus.

Subelongatus, fere cylindricus, niger, opacus, elytris cinereo-fuscis, pedibus rufo-piceis ; capite grosse granulate,
vertice medio oblique bicarinato, clypeo angulariter emarginato et utrinque angulato ; thorace setis clavatis
pallidis marginato, supra rugis quatuor, opacis, granulatis, elevatis transversis, medio subinterruptis, et
extus per paria approximatis, partibus depressis subtiliter, margine antico grossius, granulatis ; elytris
subtiliter punctato-striatis, interstitiis extus anguste carinatis carinisque uniseriatim eleganter pallido-
setosis, carinis (una cum serie setorum) 2, 4 et 6 longe ante apicem abbreviatis ; pedibus posticis calcari-
busque gracilibus, tarsis articulo 1° elongate, tenui.

Long. 2^-3 millim.

Hah. Mexico, Presidio (Forrer), San Juan Bautista in Tabasco {Hoge) ; Guatemala,
Paso Antonio (Champion).

One example only from Paso Antonio, much smaller than the numerous specimens
from Presidio.

PSAMMODIUS.

Psammodius (Gyll.), Lepeletier de Saint-Fargeau & Serville, Encycl. Meth. x. p. 359 (1825) ;
Latreille, E^gne Anim. (ed. 4) ii. p. 593; Lacordaire, Gen. Col. iii. p. ]21 ; Mulsant, Col.de
France, Lamellicornes, p. 320; Horn, Trans. Am. Ent. Soc. 1871, p. 291.

Psammobius, Heer, Faun. Helvet. i. p. 531 (1841); Gemminger & Harold, Cat. Col. iv. p. 1068.

PSAMMODIIJS. 103

This genus has a somewhat wider range than Bhyssemus. Equally with that genus
spread over the eastern hemisphere, it occurs, though in species of diminished size,
throughout Tropical America. Upwards of thirty species have been described.

1. Psammodius quinque-plicatus.

Psammodius 5-plicatus, Horn, Trans. Am. Ent. Soc. 1871, p. 292^.
Hab. NoETH Ameeica, Arizona ^. — Mexico, Northern Sonora (Morrison).

2. Psammodius culminatus.

p. quinque-plicato similis, sed differfc thoracis rugis elevatis granulatis. Anguste oblongo-ovatus, nitidus ; capite
verrucoso, vertice laevi ; clypeo sat anguste emarginato, extus rotundato ; thorace toto gramilato, sed nitido,
utrinque sulcis quinqiie (nee medium nee latera attingentibus), 1" juxta marginem anticum, 4° magis
oblique et curvato, linea dorsali late impressa ; elytris sat acute punctulato-striatis, interstitiis medio
culminato-convexis et (praecipue versus latera et apicem) subtiliter granulatis ; tarsis posticis articulo 1°
brevi, sat late triangular!.

Long. 3| millim.

Hah. Mexico, Presidio (Forrer), Jalapa, Mexico city (Edge).

Two examples from Jalapa and Mexico city are pitchy-black ; the others are
reddish-testaceous like P. quinque-plicatus.

3. Psammodius versecrucis.

p. coelato (Lee.) proxime affinis, sed elytris multo minus ventricosis ; valde convexus, rufo-testaceus, glaber ;
capite minus grosse verrucoso, occipite Isevi, clypeo triangulariter emarginato, extas angulato ; thorace
utrinque lineis transversis quinque grossissime punctatis quarum duobus solum latis et profundis, dorso
anteriore Isevi, posteriore grossissime confuse punctate ; elytris acute exarato-striatis, striis fundo punctatis,
interstitiis supra planis.

Long. 2|-2| millim.

Ilab. Mexico, Vera Cruz, Tapachula in Chiapas (Edge).

Allied to the Californian P. ccelatus, Lee, but the elytra, though very convex, not
ventricose as in that species. The very coarse sculpture of the thorax is similar, but
there are tolerably distinct rows of punctures between the transverse sulci, the elevated
parts being quite smooth in both species. The sculpture of the elytra differs from
that of P. cmlatus only in the strise being much deeper.

Resembles also the P. quinque-^plicatus, Horn, but the elytra are more ovate and the
thorax has not the five equally impressed sulci of that species.

Herr Hoge obtained a very large series of examples at Vera Cruz, which offer scarcely
any individual variation. Two examples also were captured at Tapachula on the
Pacific slope.

4. Psammodius micros.

Brevis, sat anguste oblongus, nfgro-piceus, politus ; capite verrucoso, vertice Isevissimo, clypeo sat profunde
angulatim emarginato ; thorace pauciter grosse punctate, sulco utrinque profunde punctate, prope marginem

104 LAMELLICOENIA.

anticum alteraque breviore posteriore, basi marginato lineaque abbreviata dorsali ; elytris catenulato-
Btriatis, interstitiis planis, subtiliter ragulosis, intus vix crenatis.
Long. 2 millim.

Hah. Guatemala, Capetillo, Duenas {Champion).

Closely allied to the South-European P. sahulosus, Muls. It has the same general
form and colour, and structure of legs, and also a similar sculpture of the head and
thorax ; but it is very much smaller ; the vertex for a wide space is perfectly smooth
and polished ; the punctures of the thorax are smaller and more v^idely spaced ; and
the punctures of the elytra are confined to the bottom of the neatly-ploughed stri«,
scarcely crenating the sides of the interstices.

6. Psammodius parvulus.

Psammodius parvulus, Chevr. Ann. Soc. Ent. Fr. 1864j p. 415 \

Hah. Mexico, Presidio {Forrer) ; Guatemala, Dueiias, Paraiso (Champion).— Sovtr
Ameeica, Amazons ; Antilles, Cuba i.

Very closely allied to P. micros. Smaller (1 J millim.) ; colour reddish-testaceous, the
head and thorax castaneous with paler margins, and the latter having one lateral trans-
verse groove only. In the identification there is a difficulty in the phrase used by
Chevrolat, " elytris striato-punctatis," as this does not accurately express the sharply
catenulate-punctate striae.

6. Psammodius integer.

Oblongus, convexus, glaber, nitidus, castaneus ; capite lato, verrucoso, occipite laevissiiiio ; clypeo late et minus
profTinde triangulariter emarginato, utrinque angulato, acuto ; thoraee sat magno, lateribus arcuatis,
postice magis quam antice angustato, angulis posticis nullis, supra mediocriter punctate, punctis minutis-
simis intermixtis, sulcis trausversis nullis foveaque sola prope angulos anticos, lateribus medio sublaevibus,
convexis ; elytris fortiter crenato-striatis ; carina mesosterni elongata.

Long. 2 1 millim.

Hah. Mexico, Vera Cruz (Edge).

This species connects Atcenius with Psammodius. It differs entirely from the former
by its robust broad hind tibiae (subserrate and setose along their outer edge and not
prolonged into a spine at the outer apex), by their robust spurs (which, however, are
obtusely pointed at their apices rather than spatulated),and by the short tarsi, in which
the basal joint is very much broader than the others. On the other hand, the head
and thorax are constructed as in the second section of Atcenius^ the latter showing no
trace of the transverse furrows of Psammodius except a well-marked and large fovea
near the anterior angles.

JEGIDirM.— OCHOD^US. 106

Fam. ORPHNIDiEJ.

^GIDIUM.

JEgidium, Westwood^ Trans. Ent. Soc. Lond. iv, p. 173 (1846).

An exclusively Tropical-American genus. Five species have been described.

1. ^gidium colombianum.

JEgidium colombianum, Westw. Trans. Ent. Soc. iv. p. 174, t. 12. ff. 7, 8'j Lacord. Gen. Col.^
Atlas, t. 28. f. 1.

Eab. Colombia ; Venezuela ^.

Var. cribratum. (Tab. VII. figg. 1, S ; 1 a, side view of head and thorax ; 2, $ .)
A typo differt toto corpore fortius et densius (capite creberrime) punctato ; elytris (?) interdum confluenter

confertim punctatis.
Long. 10-14 millim. c? ? •

Hah. Panama, Volcan de Chiriqui {Champion).

Var. squamatum.
Crebre punetatum, punctis omnibus squama incumbente conspicua fulva munitis.
Long. 12-14 millim. c? 2 •

Hah. NiCAEAGUA, Chontales {Janson).

The two varieties described agree in all structural points v^'ith jE. colomlianum, but
differ from it greatly in their denser and coarser punctuation, especially of the upper sur-
face. Westwood describes the head and thorax as smooth and shining : in a Venezuelan
example I find them sprinkled with minute points, denser, however, on the anterior
part of the head. Flat scales in the punctures are visible, at least on the elytra, in
the typical species ; but they are very conspicuous, and give a tawny-brown tint to
the whole body, in the var. squamatum.

OCHOD^US.

Ochodavs, Lepeletier de Saint-Fargeau & ServiUe, Encycl. Meth. x. p. 360(1825); Westwood,
Trans. Ent. Soc. Lond. n. s. ii. p. 63 (1852) ; Horn, Trans. Am. Ent. Soc. ]876, p. 177.

A genus of very wide distribution, but the species are nowhere abundant in individuals.
The majority inhabit the temperate zone of both the Eastern and Western hemispheres ;
the remainder being sparingly scattered over South America, and tropical Asia and
Africa. Twenty-five species have been described; but, as is evident on reading
Dr. Horn's excellent analysis of the North-American forms, it is impossible to discrimi-
nate them without close attention to the sexual diflferences and various peculiarities of

BIOL. CENTK.-AMEE., Coleopt., Vol. II. Ft. 2, Octoher 1887. PP

106 LAMELLICOENIA.

structure, especially in the males — the form, colour, and sculpture offering little diver-
sity and apparently varying in many cases.

1. Ochoda&us luridus.

OchodcBus luridu»f Westw. Trans. Ent. Soc. Loiad. n. s. ii. p. Q7, t. 9. f. 4 \
Hah. 'Mexico'^ {Salle).

I refer an example in the Salle collection to this species, as it agrees with Westwood's
description in size (9 millim.) and sculpture ; but if it represents the same species it must
be the opposite sex, as it shows no traces of the two tubercles between the eyes. The
forehead is concave, and the arcuated and thickened rim of the clypeus is terminated on
each side by a large tubercle ; the epistoma below in front is flattened, and also has a
thickened rim on its front margin.

2. QchodaBus praBsidii

Paullulum oblongus, testaceo-fulvus, nitidus, erecte hirsutus : eapite crebre asperato-punctato, fronte transversim
depressa, clypeo margine antico duplici cariuis sequalibus perparum incrassatis arcuatis parallelis, superiore
utrinque leviter tuberculata ; thorace dense asperato-punctato, linea dorsali postice profunda; elytris
punctato-striatis, interstitiis convexis, sat sparsim setifero-punctatis, apice suturali recto ; propygidio medio
canaliculato ; tibiis anticis apice intus aeutis nee productis, extus denticulo 3° remoto, posticis mox a basi
intus usque ad apicem dilatatis, intus inermibus ; femoribus posticis lamina inferiore sat lata, apice hamato-
dentato ; tarsis posticis articulo basali gracili elongato.

Long. 6 1 millim. J?

Hah. Mexico, Presidio (Forrer). One example.

Differs from all other species here enumerated in the apparently double clypeus,
which results from the true clypeal margin being not at all thickened, or vertically
declivous in front; the epistome is consequently nearly on the same level, and having
an equally distinct and similarly arcuated anterior margin it looks like a duplication of
the clypeus proper. A similar structure seems to be exhibited by the North- American
species 0. ulkei, 0. simplex, and 0. musculus, the last mentioned having, however, a
thickened margin.

3. OchodsBus setulosus. (Tab. VII. fig. 3.)

Breviter oblongo-ovatus, vix nitidus, castaneo-rufus vel fulvus, supra densissime aequaliter sat breviter setosus ;
eapite ruguloso-punctato, fronte transversim depressa, clypeo arcuato utrinque tuberculato, margine incras-
sato et subverticali, epistomate infra quadrato, planato ; thorace creberrime asperato- vel granulato-
punctato, linea media dorsali Isevi postice baud impressa; elytris punctato-striatis, interstitiis parum
convexis, irregulariter bi- et triseriatim punctulatis, apice rotundatis, sutura recta ; tibiis anticis apice
intus paullo productis aeutis, extus denticulo tertia lato versus basin ; tibiis posticis normalibus, femoribus
infra lamella solum prope apicem triangulari.

Long. 5|-7 millim.

Hah. Mexico, Cordova (Salle), Vera Cruz (Hoge).

Four examples, presumably of the same sex, as they ofi'er no difference in the head

OCHODiEIJS.— CGELODES. 107

or hind tibiae, and very little in the size and form of the plate at the apex beneath of
the hind femora. One specimen differs in the punctuation of the elytral interstices
being less dense and the surface consequently more shining. The much thickened
clypeal margin is strongly arcuated, scarcely hemi-hexagonal ; its front face is rather
high and subvertical, and at its foot is flattened out into what I term the epistome, to
the very slightly thickened anterior margin of which the labrum is articulated.

4. Ochodaeus ?

Hah. Guatemala, San Isidro (Champion).

A single example, possibly the other sex of the preceding ; but differing in the
longer and softer pubescence of the elytra, as well as in the absence of tubercles from
each end of the arcuated rim of the clypeus.

5. OchodsBus ?

Mab. Mexico, Villa Lerdo in Durango {Edge).

A single example, apparently allied to the North -American 0. musculns.

6. Ochodaeus pollicaris. (Tab. Vll. fig. 4.)

Piceo-castaneus vel fulvus, nitidus, erecte hirsutus, antennia fusco-pieeis ; capite thoraceque sat grosse discrete
puiictatis nee asperatis, clypeo valde arcuato et margine incrassato utrinque late tuberculato, antice verti--
call, epistomate piano, polito ; elytris striato-punctatis, interstitiis parum convexis et sparsim pnnctiilatis,
apice suturali rectangulo ; tibiis anticis apice intus processn elongate et lato deflexo armatis, extus denti-
culo 3° cseteris minus remoto : femoribus posticia apice infra lamella sat magna triangulari, tibiis simplicibus i
ventris segmento apicali dense punctulato.

Long. 7|-8| millim. c??

Hah. Panama, Yolcan de Chiriqui {Champion). Two examples.

Apparently closely allied to the Colombian 0. rugatus, Westw., having, like that
species, a coarsely and subremotely punctured thorax; the form of the clypeus,
however, diff"ers both from the description and the figure. The remarkable thumb-like
process at the inner apex of the anterior tibiee appears not to exist in Westwood's
species, judging from the figure and description.

Fam. HYBOSOEIDJE.

CCELODES.

Coilodes, Westw. Trans. Ent. Soc. Lond. iv. p. 163 (1845).
Coelodes, Lacordaire, Gen. Col. iii. p. 135 (1856).

Eight species of this genus have been described, all American except one^ — Australian

PP2

108 LAMELLICOENIA.

— referred to it by W. Macleay. Ccelodes has not yet been detected in temperate
North America, but occurs in temperate South America (in Chili).

1. Coelodes castaneus. (Tab. Vll. fig. b,s .)

Coilodes castaneus, Westw. Trans. Ent. Soc. Lond. iv. p. ] 65 \

Hab. NiCAEAGXJA, Chontales (Janson) ; Costa Rica, Volcan de Irazu {Bogers). — South
America, Colombia i.

A male example from Irazu is figured.

2. Coelodes (?) ?

Hob. Guatemala, Zapote (Champion).

A single very small example ; undeterminable.

Fam. GEOTRTJPID^.

ATHYREUS.

Athyreus, Macleay, Horse Entom. i. p. 123 (1819) ; Klug, Abhandl. Akad. Berlin, 1845, p. .21 ;
Westwood, Trans. Linn. Soc. xx. p. 453 (1851).

About forty species of this distinct and very remarkable genus have been described.
It is distributed over the tropical zones of the three great continents, but is much more
numerously represented in America than in Asia or Africa, and extends there into
the south temperate zone as far as Buenos Ayres. The North-American species referred
to it by various authors belong to a difierent genus, Bradycinetus, Horn.

These insects are found flying close to the ground amongst low herbage just before
dark, and are often attracted to light {Champion).

1. Athyreus Cliampioili. (Tab. VII. figg. 6, c? ; 6 «, side view of head and
thorax.)

A. bifurcato (Macleay) similis, sed corpore subtus et pedibus (coxis anticis fulvis exceptis) nigris thoracisque
cornu aliter formato. Subcyaneo-niger, undique (apud elytra brevius) erecte pilosus ; capite thoraeeque
medio punctatis, hoc lafceribus totis granulatis ; elytris costulis Isevibus septem, interstitiis triseriatim
granulato-punctatis ; corpore subtus fuseo-piloso ; antennis nigris, clava piceo-rufa.

d • Clypeus medio cornu verticali elongate acuto armatus ; thorax medio dorso convexo et cornu robusto alte
erecto, apice tridentato, dente posteriore multo altiore armatus.

Long. 17 millim.

Eah. Panama, Volcan de Chiriqui 3000 feet {Champion). One male example only.

In the armature of the head and thorax resembling Klug's figure of A. tridens but
totally diff'erent in colour. The single example seems to be a more highly deve-
loped male than the one known to Klug, both the clypeal and thoracic horns beino-

ATHYEEUS. 109

considerably larger. The three species A. hifarcatus, Macleay, A. tridens, Klug, and
A. championi are, however, very closely allied.

2. Athyreus fissicornis. (Tab. VII. figg. 7, c? ; 7 «, side view of head and
thorax.)

Athyreus fissicornis (Klug^ MS.), Harold, Stett. ent. Zeit. 1880, p. 45 \

Castaneo-fulvus dorso castaneo-fuscus, vel toto Mvo-testaceus, capite thoraceque crebre (in locis coneavis
sparsius) granulatis ; elytris dense granulato-punctatis, sed sat nitidis, striis paucis versus basin obsoletis :
epistomate prope marginem anticum transverse carinato ; clypeo breviter tridentato, fronte profunde con-
cava ; thorace fere sicut in A. pholas, Westw. (Trans. Linn. Soc. xx. t. 22. f. 8), dorso prof ande concavo
carinaque utrinque flexnosa medio late dentata et postice intus inflecta, margine antioe medio valide
dentato.

cJ major. Thoracis dente anteriore alto valido, apice bicuspidato ; carinis postice intus curvatis nee versus
marginem posticum parallelis.

cJ minor et $ . Thoracis dente anteriore minore, apice acuminato ; carinis postice intus ramulum brevem emit-
tente deinde versus marginem posticum continuatis parallelis.

Long. 10-11 millim.

Rab. Mexico 1, Cordova (Salle), Jalapa (ffoge); Guatemala (Salle).

The armature of the thorax can be best understood on referring to Westwood's
figure of A. pholas, an allied Colombian species. The carinse which limit the deep
dorsal concavity are flexuous both vertically and laterally ; about the middle they
rise highest and there form a large triangular tooth, each slightly curving towards its
vis-a-vis, and behind they curve sharply inwards. In A. pholas the opposite carinas
behind meet at the dorsal line, but in A. Jlssicornis they stop far short of it. The
strong tooth or spine rises vertically from the middle of the anterior margin as repre-
sented in Westwood's figure, but in well-developed males it is higher, reaching nearly to
the level of the thorax, and broad and cleft at the apex ; in males of lesser development
(or females '?) the spine is shorter and pointed as in A. pJiolas and A. trituherculatus
(King), and a little removed from the margin. The carinee in the same individuals
differ in continuing, behind, parallel to each other, and emit a small branch inwardly
towards the dorsal line, exactly as represented in Westwood's figure of A. reichei ; this
latter is doubtless the female of a species allied to A. fissicorms, in which the sides
of the cly pens are obtuse. The anterior tibise have six teeth.

A male specimen from Mexico is figured.

3. Athyreus tridenticeps. (Tab. VII. figg. 8, cJ ; 8 a, side view of head and
thorax )

A. tridentato (Klug) similis et afSnis, quoad colores baud differt, rufescenti-Mvus, supra (thoracis lateribus
,. f ulvis exceptis) saturate castaneo-fuscus, dense pubescens pilis rarioribus elongatis intermixtis ; capite
acute granulato, fronte plana declivi, clypeo reflexo, valide tridentato fere spinoso, dente mediano majore
robusto antice ab epistomatis basi surgente ; thorace dense granulato, margine juxta foveolam indentato
et antice medio tuberculo parvo, dorso excavate, fundo irregulari, longitudinaliter sulcato et juxta mar-
ginem anticum profunde foveato, ibique et postice sublsevi, carinis duabua verticaliter valde flexuo&isy

110 LAMELLICOENIA.

medio late dentatis, postice intus leviter curvatis deinde versus marginem posticum rectis ; elytris dense

granulatis, utrinque striis obsoletis quatuor ; tibiis anticis extus 5-dentatis.
2 ? Clypei dentibus minoribus, mediano antics usque ad epistomatis basin declivi nee verticali ; tliorace

medio minus profunde excavato, fovea magna anteriore obsoleta fundo omnino granulato.
Long. 13-14 millim.

Ilab. Panama, Volcan de Chiriqui (Champion). Many examples.

Resembles much, though undoubtedly specifically distinct from, the Brazilian A.
tridentatus ; it differs in many points — notably in the sharp elevated triangular tooth
in the middle of the thoracic carinee, and the parallel prolongation of the latter towards
the hind margin ; and also in the different elytral sculpture, which consists of definite
granules without punctures or rugosity *.

4. Athyreus excavatus.

Athyreus excavatus, Casteln. Hist. Nat. Ins. Col. ii. p. 103 (1840) ' ; Klug, Abhandl. Akad. Berlin,
1843, p. 27, t. 1. ff. 9, 9 a'; Westw. Trans. Linn. Soc. xx. t. 22. f. 9 '.

Forma typica. Tibise anticse 4-dentat8e.

Hah. Mexico, Tehuantepec (Sumichrasf, in coll. Salle), Cordova, Vera Cruz {Hoge) ;
Costa Rica, Cache {Rogers) ; Panama (M'Leannan). — South Ameeica, Cayenne \
British Guiana ^, Orinoco ^.

Var. Tibiae anticse 5-dentat8e. — A. mexicanus, Klug, Abbandl. Akad. Berlin, 1843, p. 29, t. 2. ff. 4, 4 a \ '

Hah. Mexico, Cordova, Juquila {Salle) ; Guatemala, Coatepeque {Champion) ; Nica-
ragua, Chontales {Janson) ; Panama, Volcan de Qh.ui(]m. {Champion). — South America,
Pernambuco {Forbes), Bahia {Lacerda i).

Var. Tibise anticse G-dentatse. — A. lanuginosus, Klug, Abhandl. Akad. Berlin, 1843, p. 28, t. 2. ff. 2, 2a\

Hah. Mexico, Jalapa {Hoge), Peras {Salle) ; Guatemala, El Reposo {Champion) ;
Nicaragua, Chontales {Janson); Costa Rica, Cache {Rogers); Panama, Volcan de
Chiriqui {Champion).^— Sojjtk America, Venezuela i, British Guiana, Cayenne, Amazons,
Bahia ^.

This appears to be a tolerably common and widely spread species in the northern
parts of Tropical America. The characters on vi^hich Klug relied in separating it into

* Another Brazilian species exists in collections which is liable to be mistaken for A. tridenticeps. The
following brief description will perhaps suffice to distinguish it : —

Athyreus catharinae, n. sp.

Quoad colores A. tridentato simillimus, elytris adhuc minus granulatis, sed crebre subrugulose punctatis ; differt
clypeo spina mediana robusta elongata thoracisque carinis medio valde approximatis ibique uncinato-
dentatis, concavitate postice dilatata laevi.

Long. 13 millim.

. Hab. Bbazil, Santa Catharina. Two examples, both males.

ATHTEETJS.— BOLBOCERAS. Ill

three, viz. the number of teeth on the anterior tibiae and the larger or smaller impunc-
tate space on the hind slope of the large and broad thoracic excavation, prove, on the
examination of more abundant material than he possessed, to be of no specific import-
ance. As the localities above recorded show, all three forms occur in the same places
from Mexico to Bahia ; and the close examination of about forty examples from the
various localities reveals no difference whatever of colour, form, or sculpture between
examples which otherwise differ in the number of the tibial teeth. Specimens, further,
occur in which the uppermost tooth is shown in a transitional state, i. e. instead of a
distinct saw-like toothlet it is more or less rounded. The granulation of the hinder
slope of the suboval concavity of the thorax varies in the male according to its degree
of development ; and in the female, which is very much rarer than the male, the whole
of the concavity is uniformly granulated, besides being much shallower than in
the male.

The size varies from 8 to 13 millim.

BOLBOCERAS.

Bolboceras, Kirby, Trans. Linn. Soc. xii. p. 459 (1818); Erichson, Ins. DeutscM. iii. 1^ p. 744;
Klug, Abhandl. Akad. Berl. 1843^ p. 36; Westwood, Trans. Linn. Soc. xxi. p. 11 (1852).

Upwards of a hundred species of this well-known genus have been described. It
has a wider range than Athyrews^ being numerously represented in warm temperate
latitudes. An interesting feature is the great number and variety of its species in
Australia, which seems, in fact, to be its metropolis. Tropical America yields a
comparatively small number.

1. Bolboceras Sallsei. (Tab. VII. figg. 9, d ; 9 «, side view of head and thorax.)

B. (Brady cineto) serrato (Lee.) simillimus, sed coxis interiiiediis sicut in Bdboceratis- fcypicis appraximatis.
Eotundato-quadratus, Mvo-ferrugineus, nitidus-, capite rugoso-punctulato, fronte transversim depressa,.
clypeo valde elevato-carinato, supra late quadrate, angulis obtuse dentatis ; thorace antice retuso sparsim
punctate at supra obtuse quadridentato, lateribus utrinque foveis punctatis duabus et inter foveas oblique
carinatis, postice sparsim plagiatim punctate, linea dorsali subtili, marginibus crenatis ; acutello laevi ;
elytris subtiliter striatis, striis punctulatis.

Long. 17 millim. c??

Hob. Mexico, Valle Real {SaUS), Lagos in Aguas Calientes {Edge).

2. Bolboceras arcuatUS- (Tab. VII. figg. l%c?; ]0«, side view of head and

thorax.)

Breviter ovatus vel rotundatus, fulvo-ferrugineus, nitidus ; capite antice creberrime punctulato, vertice spatio-
Iffivi ; clypeo semicirculari, piano ; thorace hie illic punctis magnis pauciter consperso, linea dorsali nulla ;
elytris grosse punctato-striatis (inter humerum et suturam striis 7).

J . Vertex cornu valido conico acuto armatus. Thorax antice verticalis biretusus et supra obtuse 4-dGntatus,,
dentibus duobus medianis a laterali utrinque spatio depresso separatis..

112 LAMELLICOENIA.

2 . Vertex transversim carimilatus, carina breviter trituberculata ; thorax medio antice carina acuta leviter

biarcuata.
Long. 7-9 millim. c? $ •

Hal, Mexico, Cordova, Toxpam, Playa Vicente (Salle), Colima city {Hoge) ; Nica-

EAGUA, Chontales [Belt, Janson).

Possibly not distinct from the Colombian B. modestus, Casteln. ; but the describer
makes no mention of the arcuated or semicircular clypeus, the fine anterior margin of
which is conterminous or nearly so with the edge of the epistome. His description is
taken from the female, and the sculpture of the fore part of the head and elytra applies
fairly well to the female of the present species, with the exception of the " corselet
crible de gros points " and the impressed dorsal line.

We figure a male example from Chontales.

GEOTRUPES.

Geotrupes, Latreille^ Precis des caract. gen. des Ins. p. 6 (1796) ; Erichson, Ins. Deutschl. iii. 1,
p. 723 ; Jekel, Ann. Soc. Ent. Fr. 1865, p. 513 ; Horn, Trans. Am. Ent. Soc. 1880, p. 145.

More than a hundred species are known of this familiar genus, so eminently charac-
teristic of the Insect Faunas of the north temperate zone of both hemispheres. It passes
into the northern tropical zone both in America and in Eastern Asia ; but it is doubtful
if it is found so far south as Celebes, as recorded in the distribution of certain Japanese
species. The locality "Peru" found by M. Jekel to be attached to specimens in Mr.
Saunders's collection appears to have been erroneous, the insects being Mexican ; and
a species (G. lateridens) recorded as from Chili proves to be European (C. suharmatus),

1. Geotrupes fronticornis. (Tab. VII. figg. ll, c? ; \la, side view of head and
thorax.)

Geotrupes fronticornis, Erichs. Ins. Deutschl. iii. 1, p. 727 \

Geotrupes [Ceratotrupes) fronticornis, Jekel, Ann. Soc. Ent. Fr. 1865, p. 541 ^.

Hah. Mexico ^ ^ Toluca, Juquila {Salle), near the city {Flohr).

2. Geotrupes Sturmi. (Tab. Vll. figg. 12, s; 12 a, side view of head and
thorax.)

Geotrupes [Ceratotrupes) sturmii, Jekel, Ann. Soc. Ent. Fr. 1865, p. 543 \

Hab. Mexico i, Juquila {Salle).

The typical specimen in the Salle collection, a male of minor development, difiers
much in the form of the thorax from corresponding individuals of 6^. fronticornis :
this part is very much broader, chiefly owing to the explanated lateral margins ;
from the subangular dilatation in the middle it is greatly narrowed nearly in a straight
line to the anterior angles, and less, but still considerably, narrowed to the hind angles.

GEOTErPES. 113

The other characters mentioned by Jekel — the tlue colour, the interrupted basal margin
of the thorax, and the deeper and broader elytral striae — are found in indubitable
examples of G. fronticornis.

3. Geotrupes mniszecM. (Tab. Vll. figg. 13, d ; 13 e?, side view of head and
thorax. )
Geotrupes {Ceratotrupes) mniszecM, Jekel_, Ann. Soc. Ent. Fr. 1865, p. 544 \

S major ? Capitis eorim qiiam in G. fronticorni, sed multo longiore, antice oblique porrecto apice recurvo, supra
suleato ruguloso-punctulato. Thoracis cornu multo angustior et longior, apice sat profunde fissum.
Corpus breviter quadrato-ovatum, cyaneum.

Hab. Mexico ^ (Salle). One example.

From the description given by Jekel of the general form i (taken from a single
example, a 6 minor from the Mniszech collection), the shape of the thoracic protuber-
ance, and the outline of the thorax, I think there is good reason to conclude that
the specimen above described belongs to the same species, which is thoroughly distinct
from G. fronticornis.

4. Geotrupes sallsei. (Tab. VII. fig. 14, d .)

Geotrupes [Cnemotrupes] sallei, Jekel, Ann. Soc. Ent. Er. 1865, p. 596 \
Geotrupes {Cnemotrupes) sallei, ra.r. falsus, Jekel, loc. cit. p. 598.

Eab. Mexico, Oaxaca i, Duraznal [Salle).

On examining the type of G. falsus, kindly lent by Dr. Sharp (the possessor of the
Saundersian collection of Lamellicornia), I find it to diff'er from the few examples we
have of G. sallwi exactly as stated by M. Jekel ; but the diff"erences are evidently only
individual, and the specimen is doubtless from Mexico, and not from Peru, as
labelled.

5. Geotrupes viridi-obscurus.

Geotrupes [Cnemotrupes) viridi-obscurus, Jekel, Ann. Soc. Ent. Er. 1865, p. 599 .
Geotrupes [Cnemotrupes) saundersii, Jekel, loc. cit. p. 598^.

Eab. Mexico, Orizaba, Parada, Duraznal (Salle), Oaxaca (Salle, Edge), Salazar

(Edge), Mochitlan (Baron).

M. Jekel was right in doubting 2 that the specimen on which he founded his
G. saundersii came from Peru. It is a female difiering in nothing but trifling indi-
vidual peculiarities from Mexican specimens of G. viridi-obscurus of the same sex.
The chief difi'erence adduced by the describer, viz. the fuliginous antennal club, is due
simply to a coating of dirt on that organ. Dr. Sharp informs me that there are other
instances of specimens inadvertently labelled Peru instead of Mexico in the Saundersian
collection.

BIOL. CENTK.-AMEE., Coleopt., Vol. II. Pt. 2, Octobcr 1887. QQ

114 LAMELLICOENIA.

6. Geotrupes rufo-clavatus.

Geotrupes {Cnemotrupes) rufo-clavatus, Jekel^ Ann. Soc. Ent. Fr. 1865, p. 601 \ •

Eah. M.^xiQO {Chevrolaf^). . ■

No Geotrupes in the Salle or Hoge collections answers to Jekel's description of the
above species, especially as regards the shallow elytral striae and their mode of punctua-
tion.

7. Geotrupes sobrinus.

Geotrupes {Cnemotrupes) sobrinus, Jekel, Ann. Soc. Ent. Fr. 1865, p. 602 \
Hah. Mexico \ Jacale {Salle).

I have only seen three examples (including the pair described by Jekel from the Salle
collection) of this species.

8. Geotrupes herbeus. (Tab. Vli. fig. 15, ^ .)

Geotrupes [Cnemotrupes] herbeus, Jekel, Ann. Soc. Ent. Er. 1865, p. 604 \
Hah. Mexico [Salle, ex coll. Sturm ^), Las Vigas, Jalapa, Salazar {Hoge).

I class under this species numerous examples of a form smaller and relatively shorter
than G. viridi-ohscurus, and distinguished further by the black antennal club. The
male does not differ from that of G. viridi-ohscurus in the teeth of the under surface
of the fore tibiae.

9. Geotrupes guatemalensis. (Tab. VII. figg. 16, c? ; 16 «, side view of head
and thorax.)

Oblongo-ovatus, mediocriter elongatus, viridi-cyaBeus, nitidus, subtus fusco-nigro hirsutus ; clypeo sat elongafco
siibacuminato, dense ruguloso-punctato, tuberculo qiiam in O. viridi-ohscuro altiore ; antennis piceo-rufis,
clava fulva ; thorace la3vi, linea dorsali obsoleta, lateribus tantum punctatis, basi medio late immarginata,
utrinqne sinuata, margine laterali angusto ; scutello Isevi, medio longitudinaliter vage impresso ; elytris
profunde striatis, striis leviter crenato-punctatis, interstitiis convexis.
cJ . Tibiee anticse extus G-dentatae, dente apicali sicut in 5 simplici, cseteris gradatim minoribns ; subtus antice
dente magno postice dentibus minoribns 1-3 ; coxse dente grosse armatse. Femora postica subtus dente
lato brevi ; tibiae extus 4-carinat8e.

Long. 13-20 millim.

Hah. Mexico, Chiapas [Salle); Guatemala, Totonicapam 8000 to 10,500 feet
{Chamjpion).

A large number of examples were captured by Mr. Champion, offering little or no
difference except in size. From Chiapas there is only a single example, apparently a
much-worn female, though presenting a distinct anterior tooth on the underside of
the anterior tibise.

G. guatemalensis belongs to Jekel's subgenus Fhelotrupes, which, in his Monograph,
contains only Indian and Japanese species.

GEOTEUPES. 115

10. Geotrupes onitidipes. (Tab. VII. fig. 17, s .)

Geotrupes onitidipes (Candeze, MS.).

Breviter ovatus, nigro-seneus, nitidus, subtus cum pedibus cj^aneus, nigro hirsntus ; clypeo triangulari apice
obtuso, dense confluenter punctato tuberculoque obtusissime parum elevato, vertice Isevi ; antennis piceo-
nigris ; thorace a basi usque ad apicem paullo arcuatim angustato, lateribus solum punctato, linea dorsali
obsoleta, basi subtilissime marginata ; scutello lato, Igevi ; elytris brevibus, profunde striatis, striis dorsa-
libus fere Isevibus, lateralibus (minus exaratis) punctatis, interstitiis dorsalibus valde convexis.

c? . Tibiae anticse valde elongatse, graciles, extus dentibus 5-6 distantibus, apicali bifido ramo interiore longis-
eimo ; subtus denticulis 3-4 parvis.

$ . Tibiae anticse normales.

Long, 13-16 millim.

Hab. Guatemala {Bodriguez, in colls. Salle and Bates), Capetillo {Champion).

I cannot find that Dr. Candeze ever described this singular species, which he
distributed to his correspondents many years ago under the name I have adopted.
Mr. Champion met with one example only, a small male. As the middle leaflet of the
antennal club is entire round its edge, and the apical tooth of the male anterior tibiae
is broad and bifid, though to an exaggerated degree, the species, I presume, would
belong to Jekel's subgenus Cnemotrupes.

11. Geotrupes Cavicollis. (Tab. VII. figg. 18, c? ; is a, side view of head and
thorax.)

Elongato-oblongus, niger, nitidus, subtus nigro Hrsutus ; antennis rufo-piceis, clava fulva ; clypeo late triangu-
lari, apice acuminato-reflexo, tuberculo magno conieo antice carinato armato, genis angulatis et prope
suturam clypealem acute dentatis ; thorace transverse, lateribus tantum sparse punctato, linea dorsali
postice impressa et punctata, basi marginata et utrinque arcuatim emarginata, medio prope marginem
anticum fovea transversa sat profunda antice carina marginali delimitata ; elytris baud profunde punc-
tulato-striatis, interstitiis parum convexis.

S . T-ibise anticse extus dentibus normalibus duobus deinde longo intervallo denticulis 2-3, subtus dente vel

spina valida armatae. Femora postica subtus integra.
2 . Tibiae anticae extus 6-7-dentatse, subtus inermes.

Long. 20 millim. c? . ,

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

The middle leaflet of the antennal club has part of its edge emarginated ; the species
therefore belongs to Jekel's Division 11. It is apparently allied to the European
G. {Canthotrupes) douei, Gory, the margin of the gense, or " canthus ocularis," being
bidentate in the same places as in that species, though the prominences are not nearly
so large. The mandibles also do not present the extraordinary form they have in
G. douei. I assume that the two examples examined are males.

12. Geotrupes ?

Hab. Mexico, Refugio in Durango {Edge).

A single damaged specimen of an apparently distinct species of the section Cnemo-
truj>es.

QQ2

116 LAMELLICOENIA.

Pam. TROGID-ZE.

TROX.

Trox, Pabricius, Syst. Ent. p. 31 (1775) ; Hardd, Monogr. in Col. Hefte, ix. p. 1 (1872).

M. Preudhomme de Borre enumerates 119 species of this almost universally distri-
buted genus in his monograph 'Catalogue des Trogides,' recently published. The
genus is only moderately well represented in Central America.

1. Trox scutellaris.

Trox scutellaris, Say, Journ. Acad. Phil. iii. p. 238 (1823) ^ ; Complete Writings,, ii. p. 140; Harold,

Col. Hefte, ix. p. 56 \
Omorgus scutellaris, Lee. Proc. Ac. Phil. vii. p. 214 ^ ; Col. of Kansas and Eastern New Mexico,

t. 1. f. 4.

Eah. NoETH America, Missouri ^ to Texas 2, Kansas ^ s^ New Mexico 2 3, — Mexico
(Salle), Monclova in Coahuila {Br. Palmer), Durango city, Chihuahua city, Villa Lerdo
(Edge), Cuernavaca^.

2. Trox monachus.

Trox monachus, Herbst, Natursyst. bekammt. ausl. Ins., Kaf. iii. p. 25, t. 21. f. 7; Harold, Col.
Hefte, ix.p. 1]6\

Hah. NoETH America 1, Southern States. — Mexico {Salle).

3. Trox punctatus.

Trox punctatus, Germar, Ins. Sp. Nov. p. 113 (1824) ; Harold, Col. Hefte, ix. p. 124 \
Var. Omorgus tesselatus, Lee. Proc. Ac. Phil. vii. p. 216 (1854) ^
Trox tessellatus, Harold, loc. cit. p. 124 ^.

Eah. NoETH Ameeica, Southern States 1, Mexican boundary 2. — Mexico, Sonora 1,
Nuevo Laredo, Chihuahua city. Villa Lerdo, Guanajuato city, Monterey {Edge).

xAll the numerous Mexican examples belong to the form T. tessellatus, (Lee), which
Von Harold considers ^ to be a variety of T. punctatus, though the rows of polished
tubercles on all the elytral interstices give it a distinct character. The sculpture of
the thorax and elytra is almost exactly as in T. scutellaris, from which its oblong form
and large humeral callus distinguish it.

4. Trox asper.

Omorgus asper, Lee. Proc. Ac. Phil. vii. p. 215 (1854) \
Trox asper, Harold, Col. Hefte, ix. p. 118 \

Eah. North Ameeica, Southern States 1 2.— .Mexico 2, Northern Sonora {Morrison),
Presidio {Forrer).

TEOX.--ANAIDES. 117

5. Trox suberosus.

Trox suberosus, Fabr. Syst. Ent. p. 31 (1775) ; Harold, Col. Hefte, ix. p. 119 \

Trox crenatus, Oliv. Eut. i. 4, p. 7, 1. 1. f. 4 (1789) ; Chevr. Ann. Soc. Ent. Fr. 1864, p. 416 '.

Trox alternatus, Say, Bost. Journ. Nat. Hist. i. p. 179 (1835) ^ ; Complete Writings, ii. p. 653.

Omorgus punctatus, Lee. Proc. Ac. Phil. vii. p. 215 (1854) *.

Trox nobilis, WoU. Col. Hesperidum, p. 93 (1867) '.

Hah. North America i ^ 3 4^ — Mexico ^ ^, Northern Sonera {Morrison), San Pedro in
Coahuila, Guajuco in Nuevo Leon, San Luis Potosi (Dr. Palmer), Tres Marias Islands
(Forrer), Cordova, Guanajuato, Tuxtla {Salle), Matamoros Izucar, Chilpancingo, Aguas
Calientes, Chihuahua city, Ventanas, Villa Lerdo, Acapulco, Durango city, Jalapa, San
Juan Bautista, Vera Cruz, Tapachala {Edge), Acapulco (J. J. Walker) ; Nicaragua,
Chontales {Belt). -^Soutr America ^ to Patagonia i ; Aotilles ^ ; Africa ; Cape Verde
Islands ^.

I have copied the chief synonymy of this widely spread and common insect from
Von Harold's Monograph, in which the species and its varieties are fully described.
Morrison's examples from Northern Sonora are all of large size, the " var. a " of
Von Harold.

6. Trox acanthinus. (Tab. vll. fig. 19.)

Trox acanthinus, Harold, Col. Hefte, ix. p. 154 \
Eab. Mexico ^, San Andres Chalchicomula (Salle).

7. Trox lecontei.

Trox lecontei, Harold, Col, Hefte, ix. p. 156 \

Eab. North America, Southern States i. — Mexico i, Puebla (Salle), Jalapa (Edge).

8. Trox sonorae.

Trox sonora, Lee. Proc. Ac. Phil. 1854, p. 211 \
Trox alternans, Lee. loc. cit. p. 311 (nom. preeocc.)^
Trox lecontei, var., Harold, Col. Hefte, ix. pp. 157, 158 \
Eab. North America, Kansas and New Mexico 2.— Mexico, Sonora 1. -

It is on Dr. Horn's authority that T. alternans is referred, above, to T. sonorce as a
synonym. According to Von Harold ^ it is only a large and strongly-sculptured form of
T. lecontei.

ANAIDES.

Anaides, Westwood, Trans. Ent. Soc. Lond.iv. p. 167 (1845) ; Erichson, Ins. Deutschl. i. 3, p. 934.

A genus confined to Tropical America. Two species only have been previously
described.

118 ' LAMELLICOENIA.

1. Anaides laticoUis.

Anaides laticoUis, Harold, Ann. Soc. Ent. Fr. 1863, p. 175 \

Hah. Mexico, Cordova i, Toxpam [Salle), Jalapa {Hbge) ; Guatemala, Capetillo, San
Geronimo, Coban, San Joaquin in Vera Paz (Champion).

This species is found at the sap of various trees, according to Mr. Champion.

2. Anaides simplicicoUis. (Tab. VII. fig. 20.)

A. fossulato et A. laticolli similis, sed differt thorace haud earinato. Niger, nitidus, supra fere nudus, capitis et
thoracis ejytrorumque (basi) marginibus solum ciliatis ; capite fere ovato, discrete punctato, obtuse eari-
nato ; thorace sat dense punctato, basi utrinque valde sinuata, dorso pauUo convexo et postice vage late
eulcato ; elytris elongatis, dorso planatis, lateribus verticalibus et supra declivitatem carinatis (carina longe
ante apicem in callum desinente) acute striatis, striis catenato-punctulatis, interstitiis planis sparsim
punctulatis et subtiliter unistriatis ; tibiis 4 posticis gradatim sat fortiter dilatatis triquetro-compressis
ciliatis extus haud serratis ; tibiis anticis extus dentibus acutis 3 et supra serrulatis.

Long. 10 millim.

Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet, Rio Sucio (Bogers).

Taken abundantly by Mr. Rogers. The mentum differs from that of A. fossulatus,
as figured by Westwood, in being rather deeply sinuated at the apex.

CLGEOTUS.

Clceotus, Germar, Zeitschr. fiir Entom, iv. p. 129 (1843) (partim) ; Harold^ Col. Hef te^ xii. p. 42 ;

Preudhomme de Borre, Catal. des Trogides^ p. 12 (1886).
Acanthocerus, Germar_, loc. cit. p. 131 (nee Macleay).

M. Preudhomme de Borre enumerates, in his ' Catalogue des Trogides,' twenty-
six species as belonging to this genus. With one exception (a species from Penang)
they are all from America, where they are spread over the temperate and tropical
zones from the United States to Chili.

Von Harold in his Col. Hefte, xii. p. 28, enters fully into the reasons which induced
him to change the name given to this genus by Germar in his monograph of the group.
The characters given by Macleay of his genus Acanthocerus, although containing some
errors, leave no reasonable doubt that he had in view the same generic form as that
on which Germar constituted his Splicer omorphus. The inconvenience attending this
displacement of names is perhaps lessened by Von Harold having retained the name
Cloeofus for both Germar's genera Clceotus and Acanthocerus (nee Macleay), which
appear to offer no essential difference.

The spheerical Trogidee are generally found by beating bushes containing dead twigs,
from which they readily drop in the coiled-up state, sometimes in considerable
numbers, into the inverted umbrella. It was in this way that Mr. Champion obtained
his extensive series of the group. They feed on dead fungoid matter and galls. I

CLGEOTUS. 119

have seen Cloeotus plicatus and another species feeding on old woody boleti, and a
species of the same genus on gall-like excrescences on the midrib of a Paullinia leaf.

1. Cloeotus globosus.

Trox globosus, Say, Boston Journ. Nat. Hist. i. p. 179 (1835) ^; Complete Writings,, ii. p. 653.
Acanthocerus globosus, Germ. Zeitschr. fur Ent. iv. p. 138 ^

Hah. NoETH Ameeica12. — Mexico 2, Cordova (Salle), Jalapa [Hbge).

Var. G. (A.)-madeayi, Perty, Del. An. Art. Brasil. p. 43, t. 9. £. 4^; Germar, Zeitschr. fiir Ent. iv. p. 139*.
Elytrorum carina submarginali valde crenata subinterrupta ; thorax acervatim punctatus.

Hab. Guatemala, Cerro Zunil, El Tumbador, Zapote, San Juan in Vera Paz, Tamahu
(Champion); Pajs'ama, Bugaba, Volcan de Chiriqui (Champion). — South Amekica,
Colombia ^, Brazil ^ ^.

Yar. C. {A.) sticticus, Erichs. in Germar, Zeitschr. fiir Ent. iv. p. 140 ° ; A. antiquus, Erichs. loc. cit. p. 141 *,
Thorax parcius et subtilius punctatus.

Eab. NiCAEAGUA, ChontBles (Belt, Janson). — South Ameeica, Surinam^, Para^,
Amazons (coll. Bates).

On examination of a large series from various localities this species proves to vary in
all those points of colour, bloom of surface, and sculpture on which Germar and
Erichson relied in separating it into five, for I see nothing in the description of
Erichson's A. puncticollis from South Brazil to merit its specific separation from the
rest. The character derived from the carinated interstices of the elytra towards the
apex seems to be a little more constant than the sculpture of the head and thorax,
which is variable among examples from one and the same locality. In nearly
all the northern specimens the longer exterior carina is sharp and clear of indenta-
tions. This is the chief distinguishing feature in Germar 's description of C. glo-
bosus. I find it more pronounced in the Jalapa examples captured by Hoge than
in specimens of the typical C. globosus from Louisiana. The Cordova specimens in
the Salle collection are somewhat different, and show a tendency towards C. sticticus
and C. macleayi in the laterally crenated and wavy line of the same carina. Guatemala
examples all show a more or less wavy carina, and in those from Chiriqui this feature
is generally a little more pronounced ; but I find that it varies even in South-Brazilian
examples of C. macleayi. Thus it must be held doubtful if the five species of Germar's
Monograph can be maintained even as constant local varieties. Further material from
South-American localities is required to decide the question.

2. Cloeotus aphodioides.

Melolontha aphodioides, Illiger, in Wiedem. Archiv fiir Zool. und Zoot. i. 2, p. 109 ^
Acanthocerus aphodioides, Germar^ Zeitschr. fiir Ent. iv. p. 137 ^
Scarabmus latipes, Germar^ Ins. Spec. Nov. p. 114 '.

120 LAMELLICOENIA.

Troa; splendidus, Say, Boston Journ. Nat. Hist. i. p. 180 (1835) ' ; Complete Writings, ii. p. 653.
Acanthocerus lavistriatus, Casteln. Hist. Nat. Ins. Col. ii. p. 109 . v

Eah. NoETH Ameeica, United States 1 2 4._Mexico ^ s.

Var. C. prionomus. A typo differt solum elytrorum margine prope humeros serrulate.

Hah. Guatemala, Zapote {Champion).

The variety, of which three examples only were taken by Mr. Champion in Guatemala,
agrees precisely with North-American specimens of C. aj)hodioides in its oblong form
and in the sculpture of its surface ; the sides of the thorax have three similar polished
elevations, and the apex of the elytra six carinae, viz. three parallel to the suture, and
three to the lateral margin, the broad sulci between the latter being marked with fine
chain stri^ in elegant pattern. In the variety the elytra have subrectangular shoulders,
and a very narrowly dilated margin, which for a short space near the shoulder is con-
spicuously, though finely, serrated. The colour of the elytra is brilliant brassy, almost
golden, and the underside of the body wit h the femora is reddish.

3. Cloeotus reticularis.

C. apJiodioidi affinis; differt thorace lateribus absque callis politis, scutello Isevi, elytris subtilius striato-

punctatis, etc.
Long. 4 millim.*

Hal. Mexico, Cordova {Salle).

Of the same oblong form as C. aplwdioides; brassy -black, with greenish-bronze and
seneous reflections, the surface polished and with a changing milky-opaline lustre. Head
(vertex excepted) closely punctured ; clypeus broadly rounded, the edges reflexed ; gense
triangular, sublobate. Thorax transverse, quadrate, slightly narrowed anteriorly, the
sides nearly straight, the hind angles rectangular, submarginal impressed line entire,
near the anterior angles broader, its inner edges raised and thickened ; surface finely
and not very closely punctured, becoming nearly smooth behind, the lateral border
having a large oblong depression, thickly and finely flexuous-strigose, and without
polished elevations. Scutellum smooth, at the base a very few punctures, and within
the apex a shallow punctured fovea. Elytra with rows of short linear punctures not
impressed in striee, the lateral margin near the shoulder with 3 or 4 serrated denticu-
lations, the apex as in A. apJiodioides with six carinse, the interstice 2 (from the suture)
being carinated to the apex, the interstices 3 and 4 having very short carinse, and 6, 9,
and 11 having carinse successively increasing in length, the broad sulci between the
three having fine wavy striee forming a chain-like pattern. Possibly only an extreme
variety of C. aphodioides.

* Measurements of this genus and Acantliocerus are of the insects in their rolled-up condition.

CLCEOTUS. 121

4. Cloeotus plicatus.

Acanthocerus plicatus, Ericlis. in Germ. Zeitschr. fiir Ent. iv. p. 143 \

Hah. Guatemala, Zapote, Panzos (Champion). — South Ameeica, Para^, Amazons
{coll. Bates).

The short, erect, subclavate bristles which clothe the surface of this species are some-
times wanting, probably from abrasion.

5. Clceotus infantulus.

Parvus, fere globiilaris, seneus, politus, interdum fulvo translucens ; capita sat dense punctato, clypeo late rotun-
dato, margine prope genas leviter sinuato, genis haad lobatis ; thorace angulis posticis valde obtusis, integriter
marginato, lineolis curvatis baud profundis sat dense impressis, callis quatuor politissimis ; scutello laevi, basi
tantum sparsim punctulato ; elytris rotundatis, margine versus humeros serrato, subtiliter striato-punctatis,
punctis elongatis, stria suturali versus apicem sulciformi, ibique interstitiis tribus alternis obtuse carinatis,
carina exteriore fere usque ad humeros extensa ; tibiis posticis extus longitudinaliter dense striatis, apiee
extus productis.

Long. 2-2| millim.

Hah. Guatemala, Zapote (Champion). A large series of examples.

Var. Saturate olivaceo-seneus sculpturaque pauUo grossiore.

Hah. Guatemala, Cerro Zunil, Las Mercedes, Zapote, Capetillo (Champion).

Distinguished by the apical area of the elytra being marked by three long carinse.
The humeral callus is very prominent, and there is an elongated polished callus along
the dilated lateral margin.

6. ClCBOtUS sinnatUS. (Tab. Vll. figg. 21 ; 21 <2, profile of unextended specimen.)

Rotundatus, politus, nigro-seneus, saturate aeneus, seneo-cupreus vel Isete rufo-cupreus ; clypeo obtuse rotundato,
apice depresso et plus minusve emarginato ; thorace angulis posticis distinctis, sed apice plus minusve
rotundatis ; scutello basi (rarissime postice) punetato : elytris usque ad basin striato-punctatis, punctis
parum elongatis, margine prope humeros subtiliter serratis, apice depressis multituberculatis ibique inter-
stitio 2° bi- vel tri-tuberculato (tuberculis raro connexis), carina submarginali elongata acuta apice hamata
(in var. 0. sejuncto simplici), carinula brevi apud interstitium 10™ ; tibiis posticis extus longitudinaliter
strigosis, apice plerumque laevibus vel dimidio apicali Isevi punctate.

Long. 4 millim.

Hah. Mexico, Cordova (Salle), Jalapa (Hoge) ; Beitish Hondueas, Belize (Blan-
caneaux) ; Guatemala, Las Mercedes, Cerro Zunil, Capetillo, Calderas, Duenas, Senahu,
San Juan in Vera Paz (Champion).

This apparently common Central-American species varies much in colour and
sculpture both of surface and of the flattened outer side of the posterior tibiae, and
rather less so in the tuberculation of the apical area of the elytra. In all its varieties
it is distinguished by the broad, but very shallow, sinuation of the clypeus. As to
colour-variation, the brilliant red-coppery examples seem to be almost confined to

BIOL, cente.-amee., Coleopt., Vol. II. Pt. 2, Novemher 1887. RR

122 LAMELLICOENIA.

Mexico, where dark-bronzed hues are the exception, whilst the reverse is the case in
Guatemala, where at Capetillo, judging from the very numerous specimens taken,
bronze-black is the general colour ; Capetillo examples are, moreover, distinguished from
the Mexican form, with very few exceptions, by the striae of the outer side of the
posterior tibiae being much abbreviated, leaving a large apical space smooth or sparingly
punctured ; but there are all gradations in the extent of the smooth space. At Cerro
Zunil the prevailing colour is again different, the elytra being very dark greenish-
bronze, nearly black, and the head and thorax dark coppery ; this form, which T
propose to call C. sejunctus, is also distinguished, but not quite in all the examples, by a
slight peculiarity of sculpture at the elytral apex, the acute submarginal carina not being
hooked behind, and also by the finer punctuation of the whole surface. As to the
general punctuation, it varies greatly both in strength and density, as in most of the
species of the genus, but the variation in this respect does not correspond with other
differential characters.

The sculpture and tuberculation of the apical area of the elytra consists (1) in an
oblique row of about five oblong tubercles preceding an apical depression, the outer-
most of which is a short, but sharp, carina on the tenth interstice, (2) in a long
submarginal carina (on the twelfth interstice) sharply hooked at its apex, (3) in a
series of two or three tubercles, sometimes oblong, sometimes conical, and sometimes
connected as a wavy carina, on the apical part of the second interstice (i. e. the one
following the sulciform sutural stria), and (4) in a variable number of small rounded
warts on the intermediate space. This apical space is otherwise scored with sharp
striae, the interstices of which are fiat and smooth.

7. Cloeotus strigilateris.

Parvus, G. infantulo similis, sed differt elytris apice multituberculatis. Nigro-aeneus vel laete seneus, politus :
capite punctato, vertice laevi, fronte media tuberculato, clypeo leviter sinuato ; thorace subtiliter (intra
latera grossius) punctulato ; scutello basi punctulato ; elytris subtilissime striato-punctatis, callo humerali
vix prominente calloque elongato apud marginem dilatatum, carina submarginali valde elongata alta et
verticaliter flexuosa, carina apud interstitium lO"* acuta, area apicali 4- vel 5- tuberculata, interstitio 2°
interrupto, lateribus inter interstitium et marginem multistriatis ; tibiis posticis triangulariter dilatatis,
apice extus valde productis, compressis, extus irregulariter grosse insculptis.

Long. 3 millim.

Eab. Mexico, Cordova (Salle).

The numerous strongly elevated carinae and tubercles of the apical area of the elytra
distinguish this species from C. infantulus and C. excisus, the latter having the usual
carinae very faintly elevated, and the former three continuous carinae, and being further
distinguished by the entire rounded edge of the clypeus. In one of the two examples
the apex of the hindmost tibiae is very widely and strongly emarginated, and the inner
angle (which carries one of the spurs) is very much shorter than the outer ; in the
other specimen the two spurs are nearly on the same level. The apical cross section

. CLCEOTUS. 123

of the tibiae is narrow-oblong, and snbacuminated at the upper (outer) end. The hind
tibise are much more triangular and broader at the apex than in C. infantulus.

8. Cloeotus excisus.

Parvus, rotundus, nigro- vel piceo-seneus, politus ; capite thoraceque Isevibus, lioc lateribus tantum subtiliter
punctatis, angulis posticis rotundatis ; clypeo apice emarginato et leviter bidentato ; scutello Isevi (interdum.
basi punctulato) ; elytris lineatim subtiliter punctulatis, apice baud tuberculatis, stria suturali apice sulci-
formi, interstitiis 1" et 2° valde convexis, lasvibus ; tibiis posticis longitudinaliter striatis, nitidis, apice
mediocriter prolongatis, truncatura anguste ovata.

Long, vix 3 millim.

Hah. Guatemala, Senahu {Champion). About a score examples.

Var. Capite tboracis disco scutelloque basi punctulatis.
Hab. Mexico, Cordova (Salle).

Similar in form and closely allied to C. sinuatus, var. sejunctus; but much smaller,
and distinguished by its perfectly smooth and polished head, disc of thorax, and
scutellum, as vrell as by the absence of distinct tubercles from the apex of the elytra.
The apex of the clypeus is distinctly emarginated, and a small broad tooth is perceptible
on each side of the emarginatiou. I'he thorax is finely margined throughout, the hind
angles imperceptible, and the flattened sides marked pretty uniformly with fine curved
scratches. The elytra have the long submarginal carina and the short inner carina
on the tenth interstice fine and very little elevated ; there is no tubercle or carina in
the apical area, the sutural stria is deep and broad, and the interstices on each side
are equally elevated, straight, and smooth ; the margin near the base is finely serrated.
The hindmost tibiae are moderately prolonged at the apex, and their outer surface is
marked with a few longitudinal striae ; the apical truncation is rather narrow.

The var. from Mexico agrees precisely with the numerous Senahu examples, except
in the fine punctuation of the head, thorax, and base of the scutellum.

9. Cloeotus bidens. (Tab. Vll. fig. 22.)

E,otundatus, seueus, politissimus ; capite subsparsim punctato, clypeo late triangulari apice paullo producto,
anguste emarginato et breviter bidentato, csetero margine flexuoso ; tborace sparsissime, intra latera
grossius et arcuatim, punctulato, integriter marginato, stria a margine antico passim distante, angulis
posticis rotundatis ; scutello Isevi ; elytris a humeris gradatim sed late ampliatis, margine ampliato
convexo, striato-punctatis, stria suturali versus apicem sulciformi ibique interstitiis utrinque convexis
et rectis, area apicali alternatim carinata, carina submarginali antice abbreviata; tibiis posticis extus
suboblique strigosis, apice productis et compressis.

Long. 3-4| miUim.

Hah. Panama, Bugaba {Champion). — South Amekica, Amazons.

Distinguished from the numerous allied species of similar form and colour by the
shape of the clypeus, its flexuous margin, and shghtly bidentate apex. The sculpture
of the apex of the elytra resembles that of the much smaller C. excisus in the straight

RR 2

124 LAMELLICORNIA.

and smooth convex interstices on each side of the sutural sulcus ; in C. bidens, how-
ever, it differs from that species in having two carinated interstices (one of which is
the usually short carina of the tenth interstice, which is here prolonged to the apex)
between the convex interstices and the long submarginal carina. The apex of the
hindmost tibiae is more compressed than in the allied species, and the apical truncature
forms a narrow oblong, thus approaching the Acanthoceri.

Mr. Champion obtained a large number of specimens at Bugaba. Three examples
from Para in my own collection offer no difference.

10. Cloeotus nasutus.

C. bidenti affinissimus ; differt colore saturate viridi-aeneus vel nigro-aeneus ; capite crebre punctulato, vertice et
tuberculo obtuso frontali Igevibus ; clypeo medio producto, bre%'iter bidentato, margine leviter flexuoso,
genis anguste sublobatis ; thorace fere Isevi, lateribus solum parce punctato, omnino marginato ; scutello
sparsim grosse punctato ; elytris subtilissime striato-punctatis, apice absque tuberculis, breviter impresso-
striatis, stria suturali profunda Integra, carinula ordinaria obtusa, carina exteriore antice abbreviata ;
tibiis postieis extus parce longitudinaliter striatis, apice Isevibus.

Long. 2| millim.

ffah. Mexico, Atlisco and Matamoros in Puebla, Iguala in Guerrero (Edge).

Sufficiently distinct from the southern C. hidens by the smooth apex of the posterior
tibiae, as well as by its dark brassy-green colour.

11. Cloeotus metallicus.

Cloeotus metallicus, Harold_, Col. Hefte, xii. p. 45 \

Hah. Costa Rica, Volcan de Irazu {Rogers); Panama, Bugaba (CAam^/ow). — South
Ameeica, Colombia i. Upper Amazons ^

One example only was obtained by Mr. Champion at Bugaba, differing in its smaller
size and feebler sculpture from the typical form from the Amazons. The example
from Irazu is more characteristic. The species differs from C. bidens in the simply
angulated and smooth clypeus, the more distinct hind angles of the thorax, and the
smooth external face of the hind tibiae. The sculpture of the apex of the elytra is
nearly the same.

12. Cloeotus viridipennis.

C. metalUco et G. nitenti (Guer.) proxime afiinis, tibiis postieis extus laevibus. Cupreo-nitidus rufo translucidus
elytris viridi-teneis ; capite (clypei margine excepto) arcuato-punctato, media fronte tuberculo rotundato
Isevi ; clypeo obtusissime triangulari, marginibus, apice excepto, reflexis ; thorace arcuato-punctato spatiis
Isevibus, angulis postieis apice rotundatis ; scutello Isevi ; elytris fere usque ad basin striato-punctatis
stria suturali versus apicem sulciformi, interstitio 2° convexo, medio interrupto, carinis apud interstitia
10"" et 12"'(8ubmarginalem) elongatis acutis, medio apice tuberculis 3 vel 4 elongatis ; tibiis postieis extus
laevibus, truncatura latissima.

Long. 5 millim.

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

Mr. Champion obtained a large number of specimens, all conformable to the above

CLCEOTUS. 125

description. This species differs from the South-American C. nitens (Guer. & Germ.)
chiefly in the stronger sculpture. The frontal tubercle is always round and perfectly
isolated.

13. Cloeotus nitens.

Acanthocerus nitens, Guerin, Rev. Zool. 1839, p. 299 ; Germar, Zeitschr. fiir Ent. iv. p. 136 '.

Hah. Mexico, Cordova {Salle), Jalapa (Edge) ; Guatemala, Cerro Zunil, San Isidro
(Champion); Nicaeagua, Chontales (Belt); Panama, Bugaba (Champion). — South
Amekica, Brazil i.

Central-American specimens vary a little in the punctuation of the head, and in the
form of the apical angle of the clypeus, the angle being sometimes entire, and sometimes
slightly notched; but these differences do not correspond with the variations that
exist in the strength of the punctures of the elytra, which, according to Germar, also
varies much in Brazilian examples. Examples with triangular clypeus and punctured
head with round polished frontal tubercle agree in these respects exactly with C. viridi-
pennis, from which C. nitens in all its varieties differs m the sculpture of the apical
part of the elytra. In the latter the elytra have their apical portion entirely free from
tubercles and sharp carinse ; and the interstices are mostly broad and slightly convex, and
separated by single, sharp striae, which become longer from the sutural region towards
the lateral margin. C. nitens is also a larger insect than C. viridipennis.

14. Cloeotus ?

Ilab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Rogers).

A single example of a species allied to C. nitens and C. viridipennis is in too
damaged a condition to be determined.

15. Cloeotus viridulus.

Parvus, globosns, politas, late viridi-seneus, subtus rufo-piceus ; capite plagiatim punctato ; clypeo subtri-
angulari, a fronte linea obtiisissime elevata separate, margine reflexo, rufo ; thorace sat grosse plagiatim
punctato, angulis posticis obtusissimis ; scutello grosse sparsim punctato ; elytris striato-punctatis (punctis
oblongis), prope apicem stria suturali sulciformi, interstitio 2" late Isevi, striis brevibus, sex interstitiis
planis, cannula brevi obtusa apud 10"" altera acutiore elongata submarginali ; tibiis posticis extus longi-
fcudinaliter striatis, apicis truncatura late rotundata.

Long. 3| millim.

Hah. Mexico, Misantla (Edge). Two examples.

Similar in size and sculpture of the apical area of the elytra to C. excisus, but readily
distinguishable by the broad apical truncature of the hind tibiae. The thorax and
scutellum have a peculiar strong, but sparse, punctuation ; and the clypeus, though
obtusely angular or subproduced at the apex, shows no signs of emargination, the
margin being reflexed and entire.

126 LAMELLICOENIA.

16. Cloeotus viridis.

Clceotus viridis, Lansberge, Notes from the Leyden Mus. ix. p. 203 (April 1887) \
Eah. Mexico ^.

According to the description this species is very similar in form, colour, and sculpture
to C. viridulus; but the size (2 J millim.) is much less, and the phrase "bords
lateraux (of the thorax) legerement sinues," does not at all agree, neither can I reconcile
the description of the apical sculpture of the elytra with C. viridulus.

ACANTHOCERUS.

Acanthocerus, Macleay, Horse Entomol. i. p. 136 (1819) ; Harold, Col. Hefte, xii. p. 28 ; Preudhomme

de Borre, Cat. des Trogides, pp. 11, 26.
Spharomorphus, Germar, Zeitschr. fiir Entom. iv. p. Ill (1843); Lacordaire, Gen. Col. iii. p. 158.

Preudhomme de Borre enumerates twenty-eight species as belonging to this genus.
Four are from Borneo and the neighbouring islands, the rest from America.

1. Acanthocerus eulampros. (Tab. vil. fig. 23.)

A. polito (Erichs.) affinis ; splendidissime ssneus, corpore subtus rufescente ; clypeo basi, vertice scutelloque
lateribus sparsim punctulatis ; thorace stria antico-marginali medio anguste interrupta et yersus angula
margini approximata ; elytris disco subtiliter striato-punctatis, apice laevi, stria marginali et suturali prope
apicem impressis ; tibiis posticis dicbotome oblique striatis.

Long. 7 millim.

Hab. NiCAEAGUA, Chontales (Belt); Panama, Volcan de Chiriqui 2500 to 4000 feet
(Champion).

Distinguished from A. polHus by the finely punctured base of the clypeus, and the
four or five abbreviated rows of small punctures on the disc of each elytron. The
sutural row of punctures (which graduate into a deep stria towards the apex) does not
reach the base of the elytra. The base of the thorax is rounded, and there is not the
slightest trace of posterior angles, but the margin is slightly depressed on each side near
the scutellum, and the inner side of the depression is slightly tumid. The lateral margin
of the elytra in the place where the knees of the middle legs fit (in the rolled-up state)
is arched and sinuated. A specimen from Chiriqui is figured.

2. Acanthocerus humeralis.

Sjjharomorphus humeralis, Erichs. in Germar's Zeitschr. fiir Entom. iv. p. 116'.
Hah. Panama, Bugaba (Charn^ion). — South America, Para i.

Two examples, differing from the type form in the more prominent tubercle on the
outer side of the basal depression on each side of the thorax and the corresponding
more prominent shoulders of the elytra, a difference probably sexual. Von Harold in

ACANTHOCERUS. 127

his remarks on the South-Brazilian A sesquistriatus (Col. Hefte, xii. p. 35) says that
Erichson's type specimen of A. humeralis has a short submarginal elytral stria like
A. sesquistriatus^ i. e. a sharply incised stria. If this is really the case, the reference
of the present species to A. humeralis is wrong. But I suspect Von Harold's is a
mistaken observation. No mention is made of the short stria in Erichson's description,
which otherwise (with the exception of the punctured apex of the scutellum) agrees
with specimens taken by myself in the country from which his examples were derived.

3. Acanthocerus relucens. (Tab. Vli. fig. 24.)

A. seriato (Erichs.) affinissimus ; difFert vertice et scutello leevibus elytrorumque interstitiis apicalibus alternis
hand alte carinatis; saturate seneus, politissimus ; clypeo antice subtiliter postice in fasciam sat grosse
puncfcato ; thorace Isevi, margine basali utrinque prope scutellum depresso ; scutello Isevi ; elytris disco
striato-punctatis, striis antice et postice abbreviatis punctisque ovalibus parum impressis, apice striis
profundis, suturali marginalique et sex brevibus intermediis quarum interstitiis alternis mediocriter
elevatis ; tibiis posticis extus punctis arcuatis separatis insculptis.

Long. 5| millim.

ITab. Guatemala, Las Mercedes, Cerro Zunil, San Geronimo (Champion); Nicaeagua,
Chontales (Belt) ; Panama, Volcan de Chiriqui (Champion).

Var. A. mexicanus. Paullo minor (4|-5 millim.), elytrorum sulcis apicalibus vage crenato-punctatia, scutello
magis punctato.

ffab. Mexico, Jalapa (Edge) ; British Honduras, Belize (Blancaneaux).

Sufficiently distinct from A. seriatus (Erichs.), a species of the Amazons valley, by
the characters above mentioned. The depression of the hind margin of the thorax on
each side of the scutellum is common to both species, and in some examples ( $ X) has
a distinct tubercle on the inner side ; but the apical marginal stria is finer and nearer
to the margin, though variable in this respect. The scutellum has a few punctures at
the base on each side. The rows of shallow, oval punctures on the elytra are variable
in strength and number; the sutural stria, which as usual is deeply impressed at
the apex, becomes a similar row before the middle, and continues as such to the base;
the six short sulci of the apex increase in length from the suture outwards, but the
longest does not reach the middle, and the smooth interstices are alternately moderately
elevated, not sharply and greatly raised as in A. seriatus. The hindmost tibiae externally
are marked with arcuated scratches, mostly isolated, and the scratches do not form a close
reticulation as in A. seriatus. A Chiriqui specimen is figured.

4. Acanthocerus vicarius.

A.semipunctato (Germ.) proxime affinis et fcrsan ejus varietas geograpbica. Globularis, polltus, saturate »neus,
cupreo-eeneus vel cupreus ; thoracis stria marginali anteriore valida et Integra, tborace et scutello
punctatis ; elytris sat regulariter et usque ad apicem striato-punctatis, striae submarginalibus punctis
prope apicem interdum conjunctis; tibiis posticis strigulis arcuatis insculptis.

Long. 3|-4 millim.

128 LAMELLICOENIA.

Ilab. Mexico, Cordova (Salle), Jalapa (Edge); British Hoa'Dueas, Belize [Blan-
caneaux); Guatemala, Cubilguitz, Senahu, Cerro Zunil, Las Mercedes [Champion).

A large number of examples. Belongs to a group of smaller species, widely distri-
buted in Tropical America, in which the stria accompanying the fore margin of the
thorax is deep and continuous, and the upper surface more or less thickly punctured.
The present species agrees with the South-Brazilian A. semipunctatus in the puncture-
rows of the elytra scarcely reaching the base, and not being impressed at the apex or
forming there two or more sharp strise ; but it seems to differ in the greater regularity
of the rows, the punctures of which in A. semipunctatus are in many places out of line,
and the rows consequently confused ; in A. vicarius the rows are nearly straight, except
the second, third, fifth, and sixth towards the apex. The head (except the vertex) is
thickly covered with large, separated punctures, which are sometimes equally strong
throughout, and sometimes finer on the forehead than on the clypeus. The thorax differs
in form from that of the more typical Acanthoceri in having distinct, though rounded,
hind angles ; it is punctured almost as strongly on the disc as on the sides, but there
is a space in the middle of the lateral margins, a vague dorsal line, and a round spot
on each side of the disc smooth and polished ; the punctuation, however, varies in
strength in different individuals, the same as it does on the scutellum.

5. Acanthocerus micros.

A. semipunctato affinis ; multo minor et diifert fronte leevi tibiisque posticis extus striis subtilibus loiigitudinalibus
hie illic confluentibus insculptis. E minoribus ; clypeo (praecipue basi) piinctato, fronte verticeque laevibus ;
thorace scutelloque punctulatis, spatiis Igevibus ; elytris striato-punctatis, stria 2* et 3"* mos a basin fractis
et irregnlaribus, striis exterioribus versus apicem fere continuis.

Long. 2|-3 millim.

Hah. Mexico, Jalapa, Misantla {Edge).

The chief distinction between this species and A. semipunctatus is furnished by the
widely different sculpture of the hindmost tibise. Germar describes this sculpture (in
A. aemipunctatus) as " Runzeln welche durch zusammenfliesende punkte entstehen,"
which Von Harold (Col. Hefte, xii. p. 35) further explains as " bilden die Eunzeln

eine dichte aus kurze halbkreisen bestehende punktirung." This perfectly

well suits our A, vicarius as well as A. semipunctatus ; but A. micros shows in the tibial
sculpture no trace of small semicircles, the sculpture consisting of fine longitudinal partly
dichotomous and partly confluent lines. The approximation of the punctures almost
(but not quite) to the formation of linear strise, in many of the rows at the apex of
the elytra, also distinguishes the present species.

6. Acantliocerus rotundicollis. (Tab. VII. fig. 25.)

Minutus, Eeneo-rufus, politissimus ; capite omnino convexo nee margine explauato, antice subtiliter discrete
punctulato, clypeo apice strigato ; thorace a basi oblique usque ultra medium ampliato deinde ad apicem
citius august ato, toto sparsim punctulato, stria marginal! anteriore Integra; scutello medio punctulato;

ACANTHOCERUS.— APOEOLAUS. * 129

elyfcris utrinque striis undecim acute incisia, subtilissime punctulatis, sequaliter a basi usque ad apicem
impressis et inter se distantibus, interstitiis planissimis et minutissime punctulatis.
Long, 2 millim.

Hab. Panama, Volcan de Chiriqui (Champion). One example only.

Differs from all other Acanthoceri known to me by the convexity of the head being
continued to its edges ; and also by the form of the thorax, the sides of which are cut in
nearly a straight line, and obliquely from opposite the outer angle of the scutellum to
near the anterior angles, at which point the thorax is at its greatest width. On each
side of the basal margin of the thorax, near the angle of the scutellum, is a small
but conspicuous concavity. In the way the single example is mounted I cannot examine
the sculpture of the exterior face of the hind tibiae.

Fam. ACLOPID^.

APOEOLAUS.

Corpus elongato-ovatum, glabrum, lateribus et subtus cum pedibus longe pilosis. Clypeus brevissimus, antice
arcuatus ; labrum planum, clypeo fere sequale apice medio acuminatum. Mandibulae labrum amplectentes,
intus ciliatse ; apice anguste prolongatae, liberse, acute bidentatse. MaxiUse inermes, lobo dense penicillato.
Mentum transverse quadratum planum, apice medio incisum. Ligula lobis angustis elongatis, diver-
gentibus. Canthus oculorum brevissimus. Antennae Q-articulatae ; clava compacta, art. T cupuliformi
caeteris includentibus. Elytra postice conjunctim rotundata, pygidium tegentia, margine apicali incrassato.
Pedes sat graciles ; coxag anticae conicse, exsertse ; tibiis anticis extus dentibus recte exstantibus tribus ; coxae
intermediae obliquae, contiguae; tibiae posticae, (S , graciles, rectae, $ extus ante apicem sinuatse, apice
bicalcaratse. Tarsi mediocriter elongati ; ungues elongati, graciles, simplices, paronycbio bisetoso minuto.
Metasterni episterna elongata triangularia ; epimeris apicalibus parvis transversalibus. Segmenta ventralia
sex libera.

An interesting generic form, connecting three families placed wide apart in Lacor-
daire's system, viz. Hybosoridse, Aclopidse, and Glaphyridae; and demonstrating that
the mouth-structure (especially the free bilobed ligula) is more to be relied upon than
the position of the abdominal spiracles as indications of natural affinity in this portion
of the Lamellicorn series. The legs (with the exception of the male developments) are
those of the typical Glaphyridee, the absence of transverse tibial carinee distinguishing
this genus from Aclopus, and approximating it to Glaphyrus, as also does the cupuliform
club of the antennae. The form of the metathoracic episterna and epimera is that
of Ccelodes in the Hybosoridae; and the shape and relative position of the clypeus,
labrum, and mandibles are the same as in Aclqpus, Eyhosorus, and not essentially
different from the Glaphyridae.

The abdominal spiracles are microscopically small ; with a powerful lens three are
visible on the connecting membrane, and a posterior one is just perceptible on the edge
of a ventral segment.

BIOL. CENTR.-AMEE., Coleopt., Vol. II. Pt. 2, November 1887. SS

130 LAMELLICORNIA.

1. Aporolaus fimbriatus. (Tab. VIII. fig. 1, c? .)

EloDgato-ovatus, glaber, pilis longis exstantibus rufis marginatus, corpore siibtus pedibusque similariter pilosis ;^
supra rufo-testaceus, capite nigro, interdum thoracis disco autem nigro,vel elytris dimidio postioo et eapite
nigris thorace elytrorumque basi rufo-testaceis ; subtus niger, thorace coxisque anticis (et interdum ventre)
testaceis ; capite thoraceque sparsim punctatis ; elytris baud profunde punctato-striatis ; subtus la^vi.

2 . Pedes prsecipue tarsi ungues breviores ; tibiae posticae extus ante apicem sinuatse apiceque productae.

Long, 5|-7 millim.

Hah. Panama, Bugaba 1000 feet (Champion),

A large number of examples, the great majority males. Mr. Champion met with
this species only in one little opening in the forest, where it was noticed in profusion
for a few days ; the examples were mostly found upon the wing or resting on leaves.

Fam. CHASMATOPTERID-aS.

CHNAUNANTHUS.

Chnaunanthus, Burmeister, Handb. der Ent. iv. !_, p. 31 (1844).
This genus contains a single species apparently peculiar to Mexico.

1. Chnaunanthus discolor. (Tab. vlll. fig. 2.)

Chnaunanthus discolor, Burm, Handb. der Ent. iv. 1, p. 32 \

Eab. Mexico 1, Guanajuato, Parada (Salle), Mexico city, Tacambaro in Michoacan,
Matamoros Izucar, Cholula (Soge), Hacienda de San Miguelito (Dr. Palmer).

This species is sometimes entirely black, but most frequently the head and thorax
only are black, the elytra being light testaceous-brown with the sides and suture dusky
or wholly testaceous. An example from Tacambaro is figured.

Subtribe II. Ligula consolidated with the mentum.

Fam. MELOLONTHID-aE.

Subfam. HOPLIIN^.

HOPLIA.

Hoplia, lUiger, Mag. Ent. ii. p. 226 (1803) ; Lacordaire, Gen. Col. iii. p. 195 (1856).

About ninety species of this well-known genus have been described. It is widely
distributed over both hemispheres, but much more numerously represented in tempe-
rate than in tropical countries, and appears to be unknown in Australia.

HOPLIA. 131

Group I. Hind tiUce linear.

1. Hoplia festiva. (Tab. viii. fig. 3.)

Hopliaf estiva, Burm. Handb. der Ent. iv. 1, p. 193, and iv. 2, p. 485 \

Hah. Mexico ^ Cordova, Orizaba, Tomatlan [SalU)^ Coscomatepec {H'dge).

Burmeister's description, drawn up apparently from a single example, fails to convey
a correct idea of the colours and markings of this elegant species. The pattern of the
elytra in most examples consists in two or three black longitudinal lines with two large
black spots in each interspace, the ground-colour varying from light greenish-ashy to
orange-fulvous. The numerous varieties diverge from this typical pattern in opposite
directions :— 1, towards melanism, the black spots and stripes being fused together, at
first leaving pale spots on a dark ground, and in the extreme form the elytra becoming
wholly velvety-black ; 2, towards lack of black pigment, the black lines and spots
becoming attenuated, and more or less vague ; 3, until at length the elytra are
uniformly ashy or fulvous. The thorax is generally, as Burmeister describes it, ashy
with a broad discoidal black patch, but varies in the black central spot being dissolved
into two vittee, or (in the unicolorous pale form) disappearing altogether.

I can detect no sexual difference among the numerous examples either in the abdomen,
legs, or antennal club. The anterior tibiae are in all tridentate. We figure a specimen
from Tomatlan.

2. Hoplia mexicana.

Hoplia mexicana, Gemm. & Harold, Cat. Col. iv. p. 1113.

Hoplia irrorata, Burm. Handb. der Ent. iv. 2, p. 484 (nom. prseocc.) \

Hab. Mexico i.

A species placed by Burmeister next to H. festiva ; it is not contained in our
collection. -

3. Hoplia asperula. (Tab. Viil. %. 4.)

Parva oblono'a, supra squamulis elevatis granuliformibus densissime vestita, atro- vel fulvo-fusca, thorace vitta
dorsali lateribusque argenteis, elytris pone medium maculis 6 oblongis obscurius fuscis fasciatim ordinatis
et guttis cinereis marginatis ; corpore subtus argenteo-margaritaceo squamosis, pygidio plus minusve
fulvescente : femoribus squamis angustis argenteis aparsim vestitis, tibiis tarsisque (bis rufescentibus)

") cinereo-setosis ; clypeo breviter trapezoideo, margine antico truncato et rejdexo ; thorace post medium
sinuatim angustato ; tibiis antieis 3 dentatis, posticis rectis, margine superiore ante apicem leviter
sinuato ; antennis 9-articulatis, clava nigra.

Ungues pedum 4 anteriorum omnes fissi, intermediorum minore sat elongate.

Long, 4-4| millim.

Hah. Mexico, Jalapa (//o^e).

The densely packed scales of the upper surface are not flat and adpressed as in

SS 2

132 LAMELLICOENIA.

H.f estiva and in other species, but seem to be implanted obliquely, so that viewed
sideways the surface of the body appears to be minutely and closely granulated. The
whole surface is free from erect hairs, except a few on the head and sides of the
thorax. The transverse row of oblong dark spots on the elytra and the accompanying
ashy-white specks are often ill-defined, but in other examples the white spots are large
and conspicuous and the black spots scarcely apparent. The silvery dorsal line of the
thorax and similarly coloured sides are often obsolete ; on the other hand, there is
sometimes a pale supplementary vitta on each side of the dorsal one.
Found in numbers by Herr Hoge.

4. Hoplia disparilis. (Tab. Vlli. fig. 5, $ .)

Parva, oblongo-ovata, clypeo breviter trapezoidali, antice truncate et acute reflexo ; capite nigro, clypeo interdum
ruf ; thorace medio perparum dilatato, angulis posticis subrectis, reflexis ; tibiis anticis valide tridentatis,
posticis rectis ; corpore subtus squamis rotundis adpressis argenteis densissime vestito, pygidio fulvo ;
antennis nigro clavatis ; pedibus pallidis.

<S . Caput et thorax longe et dense birsuta, integumento nitido ; elytra dense breviter incumbenti-hirsuta,
fulvo-cinerea, macula oblonga posteriore prope suturam vittisque indistinctis fuscis.

$. Caput birsutum ; thorax squamis angustis densissime vestitus, antice solum hirsutus ; elytra squamulis
parvis adpressis dense vestita; fulvo-ochracea, thoracis vittis duabus rufis elytrisque vittis indistinctis
pallidis.

Long. 4| millim.

Hah. Guatemala, Chiacam {Champion).

Like some of the much larger North- American Hoplice the male of this species is
clothed with hairs, and the female with flat scales. The male has long fine hairs on
the thorax, which is otherwise glabrous, except for a small patch of pale flattened
hairs on each side ; and closely-set, short, incumbent hairs or scaly hairs on the elytra.
In the female the thorax is thickly clothed with narrow scales, the elytra with more
smoothly-laid and flattened scales. The pure silvery-white, large, round, flattened scales
of the under surface distinguish //. disparilis in both sexes.

5. Hoplia cretacea. (Tab. viil. fig. 6.)

Oblonga, rufescens, squamis parvis adpressis rotundis dense vestita, thorace et elytris (his seriatim) griseo-
setosis, subtus cretaceo-albo leviter metallica ; clypeo obtuso rotandato, margine subtiliter reflexo ; thorace
medio subangulatim dilatato, lateribus posticis baud sinuatis, angulis posterioribus obtusis ; pedibus cinereo-
pilosis ; tibiis anticis tridentatis, posticis fere rectis ; antennis 10-articulatis.

Thorax cinereus vittis quatuor fusco-rufis, fere indistinctis vel obliteratis ; elytra ciaerea, macula utrinque
post medium magna transversa angulata fusca fasciaque lobata anteriore rufo-fusca, saepe indistinctis
interdum obliteratis, elytrisque to to griseis.

Long. 5^ millim.

Hah. Mexico, Jalapa [SalU, Hoge), Oaxaca {Salle).

Distinguished from allied species by the obtusely rounded and slightly upturned
margin of the clypeus; the closely-packed, small, round sciles of the upper surface;

HOPLIA. 133

and the larger and flatter scales, equally round, and of a slightly silvery or pearly
chalk-white hue, of the under surface. Judging from the distinctly longer antennal
club of some of the specimens, there are both sexes in the series from Jalapa.

The antennee are as a rule wholly testaceous-red, but in some examples the club is
black. A specimen from Jalapa is figured.

6. Hoplia teapensis.

Proscedenti affinis, diiFert clypeo altius reflexo, thorace postice rectius angustato, angulis subrectis. Oblonga,
rufescens vel fusca, squamis angustis dense vestita ; subtus squamis latis adpressis margaritaceis ; thorace
et elytris (his seriatim) griseo-setosis.

Long. 5|-5| millim.

Var. vel J • Supra et subtus breviter incumbente pilosa.

: ffab. Mexico, Teapa in Tabasco (Salle, Iloge). Numerous examples.

7. Hoplia inops.

Oblongo-ovata, rufescenti-fusca, supra squamis angustis dense vestita, medio thorace ( d ?) subglabra ; thorace
vitta lata mediana altera utrinque abbreviata ; elytris plaga magna oblonga antemediana (a sutura pallida
divisa) vittisque lateralibus et apicalibus indistinctis, obscurius fuscis ; clypeo sicut in H. teapensi late
rotundato, margine reflexo ; thorace et elytris (his seriatim) griseo-setosis ; corpore subtus squamis parvis
angustissimis sordide griseis vestito, medio fere piloso ; tibiis anticis tridentatis, dente superiore minuto ;
tibiis posticis subrectis.

Variat : maculis vittisque indistinctis ; vel elytris fere toto atro-fuseis.

Long. 4| millim.

Ilab. Mexico, Teapa in Tabasco (Hbge)', Guatemala, Chiacam (Champion).
Many examples from Chiacam, one only from Teapa.

8. Hoplia argyritis. (Tab. VIII. fig. 7.)

Oblonga, supra squamis parvis rotundis dense vestita, clypeo late rotundato margineque elevato solum glabro ;
colore oehraceo, thorace vittis dorsalibus duabus (interdum conjunctis) elytris ochraceo-fuscis, basi fasciaque
nost medium undulata ochraceis ; interdum fuscis ; thorace et elytris (his seriatim) griseo-setosis ; corpore
subtus, pygidio, femoribus extus, tibiis intus et extus tarsisque splendidissime argenteo-squamosis ; tibiis
anticis extus tridentatis, dente superiore interdum subobsoleto ; tibiis posticis subrectis ; thorace angulis
posticis rectis ; antennis 10-articulatis.

Long. 5|-7 millim.

Hah. NiCAKAGUA, Chontales (Belt); Costa Rica (Van Patten), Volcan de Irazu
(Bogers).

Belongs to the same subgroup as H. cretacea, H. teapensis, and //. inops, distinguished
by the rows of short and rigid pale bristles on the elytra, and a general similarity of
colours and markings ; most nearly allied to //. cretacea, but distinguished by the
brilliant silvery under surface and legs. The sexes are not distinguishable by any
secondary sexual characters. We figure an example from Chontales.

134 LAMELLICORNIA.

9. Hoplia - — ?

Eah. Mexico, Chiapas (^a/Z^). ■

A single, abraded, specimen of a species allied to H. argyritis, but quite distinct.

10. Hoplia ?

Sah. Mexico, Cordova {Salle).

A single example of a species allied to H. inops, but apparently distinct.

11. Hoplia subcostata.

H. squamiferce (Burm.) similis. Lotigius oblonga, elytris utrinque obtuse bicostatis calloque apicali tfansverso
valido ; obscure fusca, squamis parvis angustissimis fulvo-fuscis supra vestita, maculis indistinctis cinereis
et atro-fuscis, setis suberectis elytrorum vix perspicuis ; clypeo late rotundato, margine reflexo subsinuato ;
thorace angusto, medio angulatim dilatato ; subtus pilis griseis subsparsim vestita ; tibiis anticis tridentatis,
posticis subrectis ; unguibus intermediis fere aequalibus ; antennis 10-articulatis, rufis, clava nigra :
scutello nigro.

Long. 6-8 millim.

Hah. Guatemala, Cerro Zunil (Champion).

In two examples ( $ 1) the thorax has a dorsal groove, in the third it is convex.

12. Hoplia rotunda.

Parva, breviter ovata, prsecipue thorace valde rotundata ; supra nigra, brevissime dense nigro-setoso-squamosa,
subnitida ; subtus squamis rotundis convexis Isete margaritaceis vestita, pygidii squamis flaveseentibus ;
antennis nigris ; pedibus anticis rufescentibus, posticis nigris, femoribus tibiisque 4 posterioribus marga-
ritaceo-squamosis ; clypeo brevi subsemicirculari ; thorace quam elytra multo angustiore, medio late sub-
angulatim rotundato, angulis posticis obtusis.

Long. 5 1 millim.

JIab. Guatemala, near the city alt. 5000 feet (Salvin).

Group II. Hind tibiae swollen in the middle.

13. Hoplia squamifera. (Tab. viii. fig. 8.)

Hoplia squamifera^ Burm. Handb. der Ent. iv. 4, p. 198 \

Hab. Mexico 1, Cordova, Orizaba, Huatusco, Juquila {Salle\ Mexico city, Jalapa
(Hoge); Guatemala (Salle); Panama, Volcan de Chiriqui (Champion).

In the more typical examples (not the most numerous of the large series examined)
the thorax has two (sometimes united) dorsal vittse and the elytra a broad postmedian
fascia (margined with cinereous spots) dark brown ; but the dark pigment sometimes
expands into a large central patch common to both elytra, or diminishes to two bands
of dusky spots ; or the dark spots are absent and their companion cinereous spots only
present. The majority of the specimens are, however, uniform greyisb-ochreous. The
elytra have a few very short stiff bristles arranged in rows ; the under surface is covered
with small oval greyish scales implanted at short distances from each other,

HOPLIA.—AST^NA. 135

The single example from Chiriqui is unusually small (5J millim.), but offers no other
difference. The species bears in some collections the MS. name of //. nehulosa, Deyr.
A specimen from Jalapa is figured.

14. Hoplia guatemalensis.

H. squamiferce affinis et similis ; difFert eorpore subtus pilis parvis incumbentibus subsparsis vestito, clypeo
semiovato (margine reflexo), elytris sat dense seriatim setosis setis gracilibus. Supra squamis parvis
densisaime vestita ochraceo-fusca, thorace vittis quatuor elytrisque fascia lata undulata pauUo ante apicem
obscurius fuscis ; raro pallide fusca unicolor ; antennis rufis.

Long. 7 millim.

Ilab. Guatemala {Salle\ Capetillo (Chaynpion),

15. Hoplia albisparsa. (Tab. viil. fig. 9.)

H. squamiferce affinis ; differt colore nigro-fusca, supra et subtus squamis cinereis conspersa ; eorpore toto

squamoso ; clypeo sat elongate et angustato, margine alte reflexo ; elytris setis gracilibus fuscis obsitis.
Long. 6-7 millim.

Hah. Mexico, Totosinapan {Salle),
Three examples.

16. Hoplia ?

Hah. Costa Rica, Volcan de Irazu {Bogers).

A single example of what appears to be a species distinct from H. squamifera.

17. Hoplia surata. (Tab. vill. fig. 10.)

Oblongo-ovata, supra squamis rotundis adpressis dense vestita, fulva, vittis quatuor elytrorum (1» prope suturam
multo lafciore) interdnm indistinctis cinereis, subtus alba squamis nonnullis opalescentibus ; clypeo semi-
ovato, margine reflexo ; femoribus tibiisque rufis politis, tibiis posticis apice tarsisque omnibus nigris,
posticis argenteo-squamosis ; antennis 10-articulatis (articulo 7° minuto, 6" magno), nigris, articulis "Z
basalibtis rufo-nitidis.

Long. 6| millim.

Hah. Costa Eica, Volcan de Irazu {Rogers).

Three examples. The shining red legs and much swollen hind tibiae are conspicuous
characters of this species.

Subfam. SERICIN^.

AST^NA.

Astcena, Erichson, Archiv fiir Naturg. 1847, i. p. 101 ; Burmeister, Haadb. der Ent. iv. 2, p. 125

(1855). ■ ; ' ■ ■

As revised by Burmeister this genus embraces a considerable diversity of specific
forms allied to the genus Serica, all inhabiting South America, chiefly the intertropical

136 LAMELLICOENIA.

zone. They differ from the Sericce of the Old World and temperate North America by
the somewhat narrower hind coxse and the diminished number of antennal joints,
viz. 8 or 9.

1. Astaena macilenta.

A. cognat(;je (Burm.) affinis et siailis ; difFert corpore multo angustiore ; cylindrica sat elongata, senescenti-rufa,
pruinosa, sericeo-opaca ; capite nitido, sparsixa'punctulato, clypeo transversim quadrato, angulis rotundatis,
margin e alte elevato; thorace lateribus medio angulato, antiee et postice medio criter angustato, angulis
posticis acutis ; elytris punctulato-striatis, interstitiis convexis ; pygidio laevi.

Antennae S-articulatae : tibiae anticae 3-dentat8e. Coxae posticas ventris segmentum primum baud tegentes.

Long. 10 millim. 5 ,

Ilab. Costa Rica (coll. Bates).
One example.

2. Astaena opalicauda.

Serica holosericece (Scop.) subsimilis, sed magis elongata tboraceque medio angulatim dilatato ; fusco-rufa, opaca
pminosa, elytris certo situ laete opalescentibus ; clypeo subquadrato, angulis rotundatis, fere laevi, margi-
nibus late et alte elevatis ; fronte nigra, punctata ; thorace et elytris passim discrete punctulatis, his
punctato-striatis, interstitiis paullo convexis ; pectore et ventre (<S) medio dense fulvo-pilosis.

Antennae S-articulatae ; tibiae anticae 3-dentatae ; coxae posticae extus latiores, medium segmentum secundum
tegentes.

Long. 9 millim. c? •

Ifab. NicAEAGtA, Chontales (Janson, coll. Bates).
One example.

Subfam. MACBOLACTYLinM

FAULA.

Faula, Blanchard, Cat. Coll. Ent. i. p. 124 (1850).

Ceraspis pars, Burmeister, Handb. der Ent. iv. 2, p. lOO (1855).

Distinguished from Ceraspis, according to both the authors above cited, by the
uncleft tarsal claws. Blanchard erroneously placed F. cornuta (Ceraspis rufij>es,
Burm.), which has bifid claws, at the head of the genus, guided doubtless by the
similarity of general form (the numerous spines of Paula being greatly elongated) and
the subglabrous surface. F. cornuta and its allies being excluded, the geuus is not well
demarcated by facies from Ceraspis, and is by some authors considered only as one
of the groups of that genus. So far as at present known, Faula is restricted to the
northern part of Tropical America.

1. Faula pilatei. (Tab. VIII. fig. 11.)

Ceraspis pilatei, Harold^ Ann. See. Ent. Fr. 1863, p. 174\
Hab. Mexico, Teapa i, Juquila (Salle).

FATJLA. 13T

2. Faula mexicana.

Ceraspis mexicana, Harold^ Ann. Soc. Ent. Fr. 1863^ p. 175 \

Hah. Mexico, Playa Vicente {Boucard'^, Salle)-, Guatemala, Panima in Vera Paz
{Champion),

3. Faula centralis. (Tab. VIII. %. 12.)

Faula centralis, Sharp^ Journ. Linn. Soc.^ Zool. xii. p. 131 \

Hab. Nicaragua {Salle), Chontales {Belt ^, Janson) ; Panama, Bugaba {Champion),^
Chiriqui {TrotscJi).

A Bugaba specimen is figured.

4. Paula brunneipennis. (Tab. VIII. fig. 13.)

Anguste oblonga, setulis griseis (apud callum elytrorum apicalem solum dense) obsita, scutello longius viUoso ;
senescenti-nigra, polita, antennis, pedibus elytrisque fulvo-testaceis ; clypeo brevi, obtuse vel sinuatim late
truncate, c? antice angustato, $ breviore transverso ; thorace sparsim et grosse sed nullo modo profunde
punctato, spatiis magnis Isevibus ; elytris mediocriter ruguloso-punctulatis.

Long. 10 miUim.

Hah. Costa Pica {Salle, Van Patten), Volcan de Irazu {Rogers).

In most examples of the numerous series examined there is a trace of the median
linear dorsal callus of the thorax characteristic of the typical Faulce; but the elytra
have no trace of costse.

5. Faula hispida. (Tab. VIII. fig. 14.)

F. hrunneipenni quoad formam simillima, supra et subtus rufo-testacea seneo-tincta (elytris obscurioribus, callo
apicali pallido), nitida, setulis sparsis griseis, apud elytra setis longissimis erectis intermistis, vestita ;
tborace fere sequaliter sparsim punctato ; elytris ruguloso-punctatis.

Long. 10 millim.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet {Champ)ion).
Two examples only.

6. Faula velutina. (Tab. Vlll. fig. 15.)

Castanea, subtus dense incumbente griseo-pubescens, supra capita et tborace pilis sericeis erectis fulvis densissime
vestita sicut velutina ; elytris nitidis, utrinque 4-costati8, interstitiis punctatis, breviter et sparsim griseo-
pilosis ; clypeo ( $ ) breviter trapezoidali, marginibus reflexis.

Long. 13 millim.

Hab. Mexico, Mochitlan in Guerrero {Baron), Acapulco {Hoge).

Two examples only, both females. The example from Mochitlan is figured; this
was kindly presented to us by Mr. Harford.

BIOL. CENTK.-AMEE., Coleopt., Vol. XL Pt. 2, December 1887. TT

138 LAMELLICOENIA.

MACRODACTYLUS.

Macrodadylus, Latreille, Fam. nat. du Regne anim. p. 371 (1825) ; Burmeister, Handb. der Ent.
iv. 2, p. 56 (1855) ; Lacordaire, Gen. Col. iii. p. 244 (1856).

A characteristic American genus, spread over the temperate and tropical regions of
the continent, though rare or absent in the plains near the equator. Between thirty
and forty species have already been described. In studying the very numerous species
from our Fauna I have carefully attended to the secondary sexual characters of the
male (discovered by Horn and Kirsch) ; but have found that, like all other characters
in the genus, they are subject to variation, and must be used with caution. The
development of the postcoxal spine, for example, though its normal form seems to be
specific, is subject to abrupt change in the same species ; and the number of ventral
setse on each side the middle line of the abdomen varies, though, making allowances for
some variation, they form a very good specific character. The singular and abrupt
modification in the pubescence of the thorax in the females of some of the species,
described below in their places, and the many variations in colour and amount of the
pile, both above and beneath, show how useless descriptions of species in this genus
must be unless founded on a good series of examples.

1. Macrodactylus uniformis.

Macrodadylus uniformis, Horn^ Trans, Am. Ent. Soc. 1876^ p. 185 \

Hah. North America, Arizona ^. — Mexico, Northern Sonora (Morrison).

2. Macrodactylus variipes. (Tab. Vlii. fig. 16.)

A M. uniformi differt antennarum clava nigra, tarsis posticis nigris, articulis basi cinereo-pilosis, corpore

densissime adpresso cinereo-piloso, elytris sutura et margine plerumque iufuscatis.
Long. 10-12 millim.

Rab. Mexico, Saltillo, Monclova, and Parras in Coahuila (Br. Palmer), Durango
€ity (Soge), Guanajuato, Oaxaca (Salle).

Scarcely more than a local variety of M. uniformis. Like that species and the
following (M. mexicanus)^ the male, with very rare exceptions, has a long postcoxal
spine, broad and emarginated, or even bifid, at the tip ; and a numerous group (3-5) of
long and very strong (almost spinous) tawny bristles on each side of the second to the
fifth ventral segments, besides similar irregular spines at the apex of the fifth and on
the sixth, and also on the middle of the metathorax. The pile of the upper surface is
more compact than in any other known species, and light ashy (not tawny) in colour.
As in M. uniformis, the integument beneath is black.

An example from Parras is figured.

MACEODACTYLUS. 139

3. Macrodactylus mexicamis. (Tab. Vlll. fig. 17.)

Macrodactylus mexicanus, Burm. Handb. der Ent. iv. 2, p. 58 (pars)\

Macrodactylus angustatus, Casteln. Hist. Nat. Ins. Col. ii. p. 147' (nee Latr. ; nee Pal. de

Beauv.) .
'^Macrodactylus cinereus, Blancb. Cat. Coll. Ent. i. p. 90.

Hah. Mexico ^ ^, Duraznal, Etla, Puebla, Oaxaca {Salle), Jalapa [Edge), Toluca {Salle,
Edge), Mexico city {Br. Palmer, Flohr, Edge), Alvarez Mountains {Dr. Palmer).

Var. vel aberratio $ . Thoracis pills medio densissimis, erectls, infuscatis.

Eah. Mexico, Guanajuato {Salle), Mexico city {Edge). '"■- ■ -

Burmeister seems to have regarded this and the preceding {M. variijtes) as one
species; at least his description applies to both. Castelnau's brief description of
M. angustatus applies well to M. mexicanus ; and M. cinereus, Blanch., might be taken
to be the same species, w^ere it not for the locality, Peru.

There is nothing in general form or structure to distinguish M. mexicanus from
M. variijpes and M. uniformis. It differs, however, in never being of a uniform pale ashy
colour above, in the integument (especially of the thorax) being steely-blue, and in the
laid pubescence being finer and sparser. A general bluish-grey tint prevails over the
surface, varied by a tawny area at the base and shoulders of the elytra. The striae of
the latter are generally left bare of pubescence ; but they are sometimes covered ; the
suture and the outer margin are nearly always blackish. The thorax has a distinct
dorsal furrow. The anterior tarsi and the antennal club are black ; the four posterior
tarsi are rather darker than in M.. uniformis — black, with the bases of the joints reddish,
and ringed with cinereous hairs.

4. Macrodactylus infuscatus.

M. mescicano valde affinis, sed differt elytrls fulvescenti-fuscls, pills recumbentlbus subtUlorlbus brevlorlbusque
sequaliter vestltis, striis nuUo modo denudatls prosternique spina postcoxali aplce late obtusa. Clypeo
parum elongate et angustato, aplce levlter slnuato ; thoraee virldescente, pills densis clnerels vestito, dorso
canaliculate ; tarsis anticls nigrls ; tarsis 4 postlcls (cum aplcibus tlblarum) nlgris, basl plus minusve rufis,
clnereo-pUosis. ■ .

Long. 10-11 milllm.

Eah. Mexico, Parada, Etla, Juquila, Oaxaca (Salle), Mexico city {Flohr).

Yar. M. vicinus (Deyrolle, MS.). Elytrorum strlls 2 et 3, 4 et 5, 6 et 7 plus minusve approximatis inter-
stitlisque 3° et 5° convexis.

Eah. Mexico, Cuernavaca, Capulalpam, Parada, Juquila {Salle).

I have adopted the name given to one of the above-described forms by Sturm,
according to the Salle collection. The elytra tend to become dusky towards the apex and
margins. The metasternum and the ventral segments in the male are armed with spiny

TT2

140 LAMELLICOENIA.

l)ristles, not notably different in strength and number from those of M. uniformis and
M. mexicanus s .

Some examples occur intermediate, in one or other feature, between this species, its
variety, and M. meodcanus.

5. Macrodactylus nigripes.

M. subsjpinoso quoad formam simillimus ; antennarum basi rufa excepta, totus niger, (in immaturo elytris basi
fulvis), tarsis 4 posticis plus minusve cinereo-annulatis ; pube sat tenui recumbente cinereo vestitus ; elytris
STitura et marginibus denudatis nigris ; clypeo parum elongate, versus apicem leviter rotundato-angustato.

c? • Presternum spina postcoxali elongata, gracili, apice obtuse rotundato ; metasterno medio longe setoso ;
ventre biseriatim fulvo-multispinoso.

Var. vel aberratio $ . Thorace medio pilis densissimis suberectis vestito.

Long. 9-12 millim.

Ilab. Mexico, Puebla, San Antonio de Arriba, Oaxaca (Salle), Jalapa, Amecameca
(mge).

6. Macrodactylus silaonus. (Tab. VIIT. fig. 18.)

M. mexicano affinis, sed differt pubescentia cserulescenti-grisea, clypeo magis angustato, pedibus rufis, tarsis
anticis totis, 4 posticis articulis apice nigris basi griseo-setosis ; antennis rutis, clava nigra ; integumento
dilute cseruleo, in immaturo elytris basi fulvis.

c? . Prosterni spina postcoxali apice late truncata ; metasterno et ventre sicut in M. mexicano fulvo-spinosis.

Long. 10-12 millim.

Hob. Mexico, Silao, Duraznal (Salle), San Juan del Eio (Edge).

Seven examples, the single one from Duraznal being less typical than the others
from Silao and San Juan del Eio.

A specimen from San Juan del Eio is figured.

7. Macrodactylus lineatocollis. (Tab. vili. fig. 19.)

M. infuscato similis et affinis, sed differt elytrorum basi prope suturam tboraceque antice erecte nigro-setosis ;

thorace vittis nudis duabus. Minor, pilis parum incrassatis, recumbentibus, sulphureo-cinereis vestitus ;

integumento thoracis et scuteUi nigro-seneo elytrorumque fulvo; clypeo grossissime punctato-scabroso j

tibiis apice tarsisque omnibus nigris, tarsis 4 posterioribus articulis cinereo-annulatis ; antennis rufis, clava

nigra.
2 . Abdomen subtus medio a basi fere usque ad apicem dense fasciculatim flavo-setosum.
Long. 10 millim. 5 . .

Hab. Mexico, Orizaba (Salle).
Two examples, both females.

8. Macrodactylus fulvescens. (Tab. Vlll. fig. 20.)

1 Melolontha anffustata, Jjatr. in Humb. & Bonpl. Obs. Zool. ii. p. 109, t. 39. f. 7 (nom. prseocc).

Praecedentibus minor et gracilior, fulvus, capite, thorace scutelloque chalybeis vel seneis, pilis sat brevibus,
tenuibus et sparsis, fulvo-cinereis, vestitus ; antennis pedibusque rufis ; tarsis articulis apice, vel fere toto,
nigris nee cinereo-annulatis ; clypeo sat elongato et angustato, scabroso-punctato.

MACEODACTYLUS. 141

c? . Spina posteoxali pauUo brevior, apice obtuso ; ventre biseriatim spinoso-setoso metasternoque setis non-
nullis similibus.

Var. M. nigritarsis, Eeicbe, MS. Corpus densius vestitum, tibiis 4 posticis apice tarsisque totis nigris.
Long. 8|-10 millim.

Hab. Mexico, Cordova, Piiebla, Toxpam, Oaxaca (Salle), Cerro de Plumas (Edge).

Much resembles the smaller individuals of the North- American M. subspinosus, from
which it differs in the narrower and longer clypeus.
An example from Toxpam is figured.

9. Macrodactylus ocreatus. (Tab. Vlli. fig. 21.)

Nigro-aeneus, elytris fulvis ; supra pilis incumbentibus rufescenti-fulvis densissime vestitus, elytris sutura et
margine late subdenudatis, antennis totis, tibiis et tarsis 4 posticis tarsisque anticis (basi excepta) nigris
nee griseo-annulatis ; clypeo quam in M. mexicano longiore, recte angustato, apice obtuse truncate.

S . Prosterni spina posteoxali elongata, apice obtusa, nigra ; ventre fere nudo, nigro-seneo, utrinque pauciter

(1 vel 2) nigro-setoso ; metasterno absque setis.
c? var. Prosterni spina posteoxali brevi ; ventre sicut pectore recumbenti-piloso, utrinque pauciter (1 vel 2)
fulvo-setoso ; metasterno pauciter setose.

Long. 10-12 millim.

Hab. Mexico, Cerro de Plumas (Ebge).

Distinguished from M. uniformis and its allies at first sight by the darker reddish-
ochreous colour, and the black tibiee and tarsi, the latter unicolorous. The clypeus is
narrower and rather longer than in those species, and the converging sides are straight ;
the fore margin is truncated, with blunted angles. The pile on the thorax is longer
and adpressed, each hair in some examples being many-branched ; that on the elytra
consists of very short, slanting, separate and simple hair-scales, but sometimes of longer
and much denser hairs, the side margins having a broad band nearly denuded, and of
the reddish-tawny hue of the elytral integument, and the base a few longer erect
bristles.

The variation in the length of the postcoxal spine, and in the colour of the ventral
bristles in the male, is noteworthy.

10. Macrodactylus rhomboderus. (Tab. viii. fig. 22, 6 .)

M. infuscato prime intuito similis, sed valde differt clypeo sicut in M. ocreato longiore, recte angustato, apice
angusto, truncate, antennis toto rufis, etc. Schistaceo-metallicus, elytris fulvis, pube recumbente cinerea
usque ad margines dense vestitis; thorace ( c? $ ) relative lato, rhomboideo, medio minus angulatim
dilatato et post angulum minus sinuate et angustato ; pedibus rufis, tarsis anticis nigris basi rufis, tibiis
4 posticis apice tarsisque nigris his articulis basi rufis.

c? . Prosterni spina posteoxali elongata, apice obtuso ; ventre biseriatim pauciter (utrinque 2 vel 3) fulvo-setoso ;
metatborace setis minoribus.

Long. 10 millim.

Hab. Mexico, Mazatlan (Hoge).
Five examples.

142 LAMELLICOENIA.

11. Macrodactylus zunilensis. (Tab. Vlll. fig. 23.)

Gracilis, fulvus, pilis recumbentibus fulvo-cinereis dense, elytrorum lateribus late sparsius, vestitus ; antennis
rufis, clava nigra ; pedibns rufis, tibiis apice tarsisque ruf o- vel nigro-piceis ; elypeo quam in M. suhspinoso
angustiore,trapezoideo, apice truncate, angulis rotundatis ; thorace angusto, medio minus dilatato et lateribus
post angulum baud sinuatis ; corpore subtus viridi-metallico, longe adpresso pilose.

(S . Prosterni spina postcoxali elongata, apice obtuse truncato, fulva ; ventre biseriatim pauciter (utrinque 2)
fulvo-setoso, versus apicem longitudinaliter canaliculate.

Long. 9-10 millim.

Hah. Guatemala, Cerro Zunil 4000 to 5000 feet (Champion).

About 200 examples, presenting no noteworthy variation. The integument of the
thorax, as well as of the elytra, is testaceous-red and not metallic slaty-green, as in the
allied M. fiilvescens. 'a.

In profusion on flowers of arborescent Compositse in the dry season {Champion).

12. Macrodactylus submarginatus.

Subgracilis, sebistaceo-viridis, elytris rufo-fulvis pilis brevibus recumbentibus flave-cinereis vestitis ; elytris
utrinque fere dimidio laterali suturaque denudatis, sericeo-nitidis ; antennis pedibusque rufis, tarsis 4 posticis
(et rare tibiis apice) rufe- vel nigro-piceis ; elypeo alveolato-punctato, anguste trapezoideo, recte angustato,
apice truncato, angulis rotundatis ; thorace sicut in M. mexicano et afSnibus.

S . Prosterni spina postcoxali mediecri, apice obtuse ; ventre utrinque seriatim uni- (hie illic bi-) spinoso ;

metasterno breviter setose.
Long. 10-11 millim.

Hah. Mexico, Juquila (Salle). "*

The pile is fine and scanty, leaving the colour of the integument, especially of
that of the lateral half of the elytra, and the metallic underside plainly visible.
I have adopted the MS. name given to the species in the Salle collection.

13. Macrodactylus sericeicollis. (Tab. VIII. fig. 24.)

M. suhmarginato proxime affinis. Obscure viridi-seneus (medio thorace aurate), pilis recumbentibus dense
vestitus, apud frontem et thoracis discum Igete fulvis, thorace lateribus corporeque subtus flave-cinereis,
elytris denudatis, rufo-fulvis, sericeis (interdum metallescentibus), vitta lata suturali flave-cinerea solum
vestitis ; antennis rufis, clava apice nigra ; pedibus nigris, femoribus (tibiisque anticis basi) rufis ; elypeo
sicut in M. suhmarginato, sed versus apicem paulle rotiindatim angustato apiceque subsinuato, minus
distincte alveolate.

(? . Prosterni spina postcoxali rufa, apice obtuse ; ventre utrinque pauciter (1 vel 2) fulvo-spinose.

Long. 10-11 millim.

Hah. Guatemala (Salle), San Geronimo, Purula, Cohan, and Cubilguitz in Vera
Paz (Champion).

A very large number of examples. The metallic colour of parts of the integument is
generally darker than in M. suhmarginatus, but is sometimes brighter golden-green.

A specimen from Purula is figured. A common insect in various parts of Vera Paz
in the dry season (Champion).

MACEODACTYLUS. 143

14. Macrodactylns lineatus, (Tab. YIII. fig. 25.)

Macrodactylus lineatus, Chevr. Col. Mex. Cent. i. fasc. 4. no. 48 \

Hah. Mexico, Vera Cruz i, Cordova, Toxpam [8alle), Jalapa, Tapachula in Chiapas
{Edge).

In general form, narrow trapezoidal clypeus, and integumental colours, M. lineatus
does not differ materially from M. suhmarginatus and M. sericeicolUs. The denuded
parts of the elytra are, however, in some examples not unicolorous tawny-red, but tend
to become black towards the sides and apex. In the paucity of the ventral setae of the
male it also agrees with these species ; the number of setae on each side is two, on some
segments only one. It differs in the elytra having a broad lateral border, the suture,
and three slightly raised costse on each (the 3rd, 5th, and 7th interstices) denuded ; the
remaining, and broader, interstices, the thorax, and the hinder part of the head are
clothed with moderately short adpressed yellowish-ashy hairs. The antennae are
wholly red ; the legs red, with all the tarsi and the apex of the posterior tibiae black.
An example from Cordova is figured.

15. Macrodactylus impressus.

M. lineato subsimilis ; pallidior, antennis (clava nigra) pedibusque rufo-testaceis, tarsis articulis basi griseo-
setosis, elyfcris pallide-castaneis, interstitiis 3", 5°, et 7° pilis brevibus incumbeDtibiis flavis vestitis, 3° et 5°
ante apicem coeuntibus, caeteris denudatis vel sparsissime pilosis ; capite, thorace corporeqne subtus
senescentibus, breviter flavo-pilosis ; clypeo trapezoideo, recte angustato, apice truncate, angulis rotundatis ;
thorace dorso vage multi-impresso.

S . Prosterni spina postcoxali cylindrica, apice emarginato ; ventre biseriatim fulvo-setoso, setis utrinque 3 vel 4 ;
metasterno multi-setoso.

Long. 10-11 millim.

Hah. Mexico, Ciudad and Refugio in Durango (Hoge), San Andres (Salle).

Bears the MS. names of M. ^lumheicollis, Chevr., and M. impressicollis, Eeiche, in
the Salle collection.

16. Macrodactylus costulatus.

M. lineato affinis ; gracilior, sobistaceus, viridi-sehistaceus vel chalybeus, parce adpresse cinereo-pilosus ; elytris
falvo-rufis (interdum postice nigricantibus), utrinque bicostulatis, interstitiis 2° et 4° latioribus cinereo-
pilosis, 1° (suturali), 3°, 5° et totis exterioribus denudatis ; pedibus rufis, tarsis 4 posticis apice tarsisque
nigris, his articulis basi interdum rufis (rarissime tibiis posticis toto nigris) ; antennis rufis, clava
interdum apice infuscata ; clypeo anguste trapezoideo, apice truncate, angulis rotundatis ; thorace passim
punctulato, S angusto medio angulato-dilatato et post angulum sinuato-angustato, $ paulla latiore et
obtusiore ; scutello viridi vix pubescente.

S . Prosterni spina postcoxali valida, apice obtuso vel truncate : ventre utrinque biseriatim fulvo-setoso, setis
utrinque 1-3.

Long. 9-11 millim.

Yar. M. riifipennis. Elytra glabra, paucissime pilosa, testaceo-rufa, costis vix elevatis.

Hah. Beitish Hondueas, R. Sarstoon {Blancaneaux) ', Guatemala, near the city

144 LAMELLICOENIA.

6000 feet (Salvin), Duenas, Coban (Champion) ; Nicaeagua, Chontales (Belt) ; Costa.
EiCA (Salle, Van Patten), Volcan de Irazu 6000 to 7000 feet (Rogers).

17. Macrodactylus suavis. (Tab. IX. fig. 1.)

M. costulato affinis, adhnc gracilior ( c? angustus, elongatus) ; thorace subovato, medio rotundato-dilatato
parum angulato ; scutello cinereo-pubescente. Viridi-seneus, elytris dimidio basali fulvis raro toto viridi-
seneis, tborace lateribus et vitta internipta dorsali cinereo-pilosis ; elytris utrinque bicostulatis, sutura, costa
exteriore et lateribus (late) denudatis, interdum costa prima autem nuda, raro costis totis pube fulvo-
cinerea tectis ; antennis (clava interdum infuscata) pedibusque rufis, tibiis 4 posticis apice tarsisque
nigris ; pygidio seneo (interdum rufo vel flavo), polito, parce punctato-piloso ; clypeo angusto, trapezoideo,
lateribus versus apicem rotundatis, apice obtuse sinuatim truncate.

(S . Prosterni spina postcoxali valida, setosa, apice obtusoj ventre biseriatim fulvo-setoso, setis utrinque 1 vel2.

Long. 9-10 millim.

Mab. Costa Eica (Van Patten), Volcan de Irazu 6000 to 7000 feet. Cache (Bogers);
Panama, Bugaba, near the city (Champion).

Var. Paullo major (11 miUim.), tibiis 4 posticis nigris.

Hah. NicAKAGUA, Chontales (Belt).

Examples with yellow or obscure reddish pygidium are from Bugaba only, mingled
with others of the normal colour.
A specimen from Bugaba is figured.

18. Macrodactylus sericinus. (Tab. IX. fig. 2.)

M. suavi proximo affinis ; diifert corpore robustiore ; elytris glabris, sericeis, castaneo-rufis, dimidio posteriore
nigris, interstitiis sequalibus, paullo convexis ; capite tboraeeque fusco-seneis vel cupreis, hoc alutaceo et punc-
tulato, pilis nonnullis cinereis apud marginem et lineam dorsalem; antennis pedibusque rufis, tarsis
omnibus tibiisque 4 posticis nigris ; pygidio nigro-seneo, medio cinereo-piloso.
(S . Prosterni spina postcoxali apice angustiore ; ventre biseriatim pauciter (utrinque 1 vel 2) setoso.

Long. 10 millim.

Hah. Nicaragua (Salle), Chontales (Belt, Janson).

The thorax in this species has a similar subovate outline to that of M. suavis.

19. Macrodactylus sylphis. (Tab. IX. fig. 3.)

M. sericino affinis ; magis elongatus, angustus ; elytris glabris, fulvis, Isete sericeo-nitentibus, plerumque versus
basin et suturam setis validis nigris obsitis ; thorace medio rotundato-angulato, (cum capite) viridi,
lateribus vittaque dorsali (et scutello) cinereo-pilosis ; antennis pedibusque rufis, tarsis tibiisque posticis apice
nigris ; corpore subtus viridi-seneo, cinereo-piloso ; pygidio testaceo-rufo aenescente.

cJ . Prosterni spina postcoxali nuUa ; ventris setis paucis, parvis et subtOibus ; pedibus posticis maxime
elongatis.

Var. Pygidio nigro-aeneo, medio cinereo-piloso.

Long. 11-14 millim.

Eah. Nicaragua, Chontales (Belt, Janson) ; Panama, Bugaba (Champion).

The form or variety with dark brassy pygidium appears confined to Chontales, that
with yellow pygidium to Bugaba; one of the latter is figured.

MACEODACTYLUS. 145

20. Macrodactylus rufescens. (Tab. ix. fig. 4.)

Augustus, viridi-scMstaceus, subtus pygidioque nigro-seneus, elytris fulvo-rufis, glabris vel vix perspicue bre-
vissime pilosis, antennis pedibusque rufis, illis clava nigra, tarsis nigris, articulis basi cinereo-setosis
interdum dimidio basali rufis ; clypeo sat brevi, angustato, apice sinuato-truncato ; thorace angustato,
ante medium angulatim dilatato, lateribus post angulum valde sinuatis; elytris interstitiis convexis,
alternis interdum altioribus.

S . Thorax denudatus vel brevissime recumbente cinereo-pilosus. Prosterni spina postcoxali sat valida, apice
angusto obtuso ; ventre biseriatim multi-setoso, spinis elongatis, fulvis, utrinque 6-7 metasternoque
dense setosis.

5 . Thorax densissime et brevissime erecte cinereo-pilosus ; metasternum et venter medio dense suberecte
longe pilosa.

Hab. Mexico, Ciudad in Durango 8100 feet (Forrer), Yolotepec (Salle), Las Vigas
(Edge) ; Guatemala [Salle], Quiche Mountains {Champion).

Var. 5 • Corpus supra et subtus pedesque dense erecte pilosa setis longioribus intermixtis.
Hab. Mexico, Yolotepec (Salle).

far. 2 ■ Thorax multo longius pilosus elytraque dense subtiliter recumbenti-pubescentia.
Long. 8|-14 millim.

Ilab. Guatemala, Quiche Mountains (Champion).

Similar in colour to M. costulatus var. rufipennis ; but distinguished from it by the
much more numerous and longer spiny bristles on each side of the ventral segments,
and by the cinereous rings of the hind tarsi. In the numerous male ventral spines, the
ashy-ringed hinder tarsi, and the rather short trapezoidal clypeus, the species betrays
an affinity to M. variip^es and its allies.

The small examples are from North Mexico (Durango). In Guatemalan male examples
he elytra are silky fuscous at the apex. We figure a specimen from Las Vigas.

21. Macrodactylus longicollis.

Melolontha longicollis, Latr. in Humb. & Bonpl. Obs. Zool. i. p. 203^ t. 22. f. 2\

S . Prosterni spina postcoxali brevi, valde curvata, apice obtuso ; ventre setis utrinque 4 nigris, rigidis, elongatis ;

metasterno longe setoso.
2 . Yenter recumbente cinereo-pilosus, ano longe setoso.
Long, 13 millim.

Hab. Mexico, Acapulco i, Sacatepec, Oaxaca (Salle).

In this insect the sides of the thorax are clothed with recumbent ashy pile ; the dark
blue elytra in the males being glabrous or nearly so, but they are sometimes clothed
like the sides of the thorax. The ashy-ringed hind tarsi and the numerous spiny ventral
setse point to an affinity with M. variipes and its allies.

According to the Salle collection, this species is the M. nigrocyaneus, Deyr. M.S., of
Gemm. & Har. Cat. iv. p. 1148.

BIOL, centk.-ameh., Coleopt., Vol. II. Pt. 2, December 1887. UU

146 LAMELLICORNIA.

22. Macrodactylns championi. (Tab. IX. fig. 5.)

M. longicolli affinis ; differt colore obscure viridi-aeneo, glabro, pedibus rufis, tarsis articulis apice nigris basi

cinereo-pilosis ; clypeo breviter trapezoideo ; tborace angusto, medio utrinque valde angulato ; antennis

nifis, clava nigra ; elytris alutaceis et rugulosis.
c? . Femora antice subtus dente magno, acuto. Caput et thorax dense confluenter punctnlata. Spina post-

coxalis brevissima : ventris set^e elongata^, Mvse, nnmerosse, utrinque 5 vel 6; metasternum longe setosum.
$ . Thorax grossissime punctatus et erecte fulvo-pilosus (medio interdum Isevi) ; venter et metasternum medium

erecte pilosi.
Long. 10-12 millim.

Hah. Guatemala, Totonicapam 8500 to 10,000 feet, Calderas 7000 feet (Chamjnon).

23. Macrodactylns dimidiatus.

Macrodactylns dimidiatus, Guerin, Mag. Zool. 1844, t. 147. p. 1 .
Macrodactylns semicarnlens, Burm. Handb. der Ent. iv. 2, p. 62 ^

cJ . Tibia? antic* intus angulatim dilatatse, femora antice subtus dente lato et obtuso. Prosterni spina post-
coxali brevi, acuta, interdum nulla; ventris setis obscure piceis, tenuibus, utrinque 1 vel 2, apice cum
pygidio flavo.

Long. 11-13 millim.

Eah. Mexico 12, Toxpam, Cordova (Salle), Misantla, Mexico city, Jalapa (Edge);
Beitish Hondueas, R. Sarstoon [Blancaneaux); Guatemala, Senahu, Sinanja (Champion).

A large number of examples including Guerin's type specimen, which is a female.

24. ICacrodactylns ovaticollis. (Tab. IX. fig. 6.)

Gracilis, thorace ovali, lateribus nullo modo angulatis ; fulvus (elytris sutura et margine anguste denudatis, nigris,
costulis utrinque 2 fulvo-denudatis) pube recumbente longa sed subtili fulvo-cinerea vestitus ; antennis
rufis, clava ( c? ) elongata, apice infuscata ; pedibus rufis, tibiis apice tarsisque nigris ; clypeo anguste
trapezoideo, antice valde angustato, apice truncato ; femoribus anticis subtus prope basin spina unci-
formi tenui armatis ; spina postcoxali mediocri, obtusa, fulva ; ventre setis fulvis paucissimis utrinque

1 vel 2. c? . ■

Long. 10 millim.

Eah. Panama (Salle). One example only.

The well-marked structural characters of this species will perhaps render it recog-
nizable by the above description, although made from a single example, which, as a
rule, is to be avoided in so variable a genus as the present.

M. ovaticollis approaches closely in colour and pubescence M. felix, Kirsch, of
Colombia; but nothing is said in the author's description regarding the peculiar
rounded form of the thorax.

25. Macrodactylus thoracicus. (Tab. IX. fig. 7.)

Macrodactylns thoracicus, Kirsch, Berl. ent. Zeitschr. 1885, p. 218 \

Hah. Panama, Volcan de Chiriqui (Charrvpion). — South Ameeica, Ecuador i.

A single male example from Chiriqui, agreeing with Kirsch's description and with an

MACEODACTYLIJS.— ISONYCHUS. 147

example captured by Buckley in Ecuador, except that the femora and tibise and tarsal
joints are tipped with black.

26. Macrodactylus ?

Hah. Panama, Volcan de Chiriqui [Cham^pion).
Also a single example ( c? ), evidently immature.

27. Macrodactylus virens. (Tab. IX. fig. 8.)

Augustus, saturate viridis vel cyaneus, fere giaber, sericeo-subopacus ; antennis piceo-rufis, clava et pedibus
nigris ; clypeo valde elongato, antice angustato, apice recurvo-rotundato ; corpore toto pilis sejunetis
recumbentibus cinereis vestito ; tborace mediocriter angulatim dilatato.

S . Prosterni spina posfccoxali mediocre, apice obtuso ; ventris setis parcissimis, nigris, utrinque 1 vel 2.

Long. 9 millim.

Hah. Mexico (Salle, ex coll. Sturm), Zapotlan in Colima [Edge).

I have adopted from the Salle collection Sturm's MS. name for this species.

28. Macrodactylus murinus. (Tab. IX. fig. 9.)

M. virenti proximo affinis ; clypeo similariter angustato et apice reflexo ; sed diifert colore plumbeo-viridi, toto

dense cinereo adpresso-pilosus.
Long. 9 millim.

Forma typica : M. murinus (Duges, MS.). Pedes nigri.
Yar. M. subviridis (Duges, MS.). Pedes nigri, femoribus tibiisque basi rufis.

Eab. Mexico, Tupataro, Silao (Salle), Tonila in Colima (Edge).

Intermediate states in the colour of the legs are shown in the Salle collection, and
both forms occur at Tonila.

ISONYCHUS.

Isonychus, Mannerheim^ Mem. Soc. Nat. Moscou^ vii. p. 69 (1829) ; Burmeister, Handb. der Ent.
iv. 2, p. 42 (1855) ; Lacordaire, Gen. Col. iii. p. 247 (1856).

An exclusively American genus, like Macrodactylus, but apparently restricted to the
tropical zone of the continent. Upwards of sixty species have been described, but as
little attention has been paid to the extraordinary variation in the colours and markings
which the species present, it is probable that many of them are not valid.

Burmeister says expressly that the legs ofi'er no sexual difierences, and other authors
have failed to notice any. The differences, however, so far as regards the tibial spurs
are similar to those of Macrodactylus, though not quite the same. The anterior tibise
have a single spur in both sexes, and the females two on the four hinder legs, but in the
males the hindmost tibise are destitute of spurs in most of the species, and armed with
a single, long spur in others, and the middle tibise have two. Sexual differences exist
also on the fifth and sixth ventral segments.

UU 2

148 LAMELLICOENIA.

1. Isonychus ocellatus. (Tab. IX. figg. 10, 11, 12, 13.)

Isonychus ocellatus, Burm. Handb. der Ent. iv. 2, p. 46\

S . Yentris segmentum 5™ medio late deplanafcum, subexcavatum, subtiliter corrugatum, nudum ; segment! 6'

apice cum pygidii apice elevate interdum verticali.
5 . Ventris segmentum 6™ (et 5' apex) simplex, nudum, rufum.
Long. 10-13 millim.

Hah. Mexico i, Puebla, Capulalpam, Toxpam, Juquila, Oaxaca (Salle), Jalapa,
Coatepec {Hbge) ; Guatemala, Volcan de Fuego 6500 feet (Champion).

The head is generally dark, tending to brassy-black, and punctured ; the rest of the
integument castaneous or brown, clothed with ashy or dingy-ashy pile, and presenting
a very variable dark brown design on the elytra. Burmeister describes only one state,
which may be fairly taken as typical, the elytra having twelve large brown rounded
spots, the two central ones of which are ring-shaped, or have a pale centre. The chief
variations from this typical pattern are the following : —

1. The fuscous spots all ocellated; pile longer and coarser. — Puebla, Jalapa. (Tab. IX. fig. 11.)

2. The same reduced to thread-like rings. — Coatepec.

3. Spots coalescing to form two broad oblique belts. — Jalapa, Toxpam. (Tab. IX. fig. 12.)

4. Pile finer_, leaving the strise (partly geminated) visible ; the. brown spots paler and more rufous

in colour, generally coalescing in two belts. — Capulalpam, Juquila.

5. Var. I. piperitus. Spots much reduced in number and size, or entirely absent; elytra sprinkled

throughout with minute blackish spots. — Juquila, Oaxaca, Toxpam, Jalapa, Coatepec.
(Tab. IX. fig. 13.)

6. Clothed with longer, light ashy pile; elytra with faint traces of two oblique dusky belts. —

Guatemala.
Var. 5 is more numerously represented and more definite than the others, thus meriting a distinc-
tive name.

2. Isonychus pictus. (Tab. IX. fig. 14, $ .)

Isonychus pictus, Sharp, Journ. Linn. Soc, Zool. xiii. p. 131 \

Hah. NicAEAGUA, Chontales {Belf^); CostA Eica {Van Patten).

A Nicaraguan specimen is figured.

3. Isonychus hirsutus.

Oblongo-ovatus, nigro-aeneus ; an tennis (clava nigra excepta), pygidio anoque obscure rufis, undique pilis
elongatis erectis fulvis pubeque recumbente fiavescente, vestitus ; elytris utrinque fascia obliqua lata ante
medium, macula transversa communi post medium plagisque vagis apicalibus, nigris recumbenti-pilosis.

Long. 13-14 millim.

(J. Ventris segmentum 5°* medio late depresso-planatum et crebre rugoso-punctatum, 6° (basi profunda
transversim sulcato) pygidioque apice elevatis ; tibise posticae ecalcaratae ; intermedise bicalcaratse.

$ . Ventris segmenta 5™ apice et 6^ Isevissima, rufescentia, 5" valde elongatum.

Hah. Panama, Volcan de Chiriqui 4000 to 6000 feet {Champion).

Allied to /. pictus and /. crinitus, and apparently still more closely to /. principalis,

ISONTCHTJS. 149

Burm., with which it agrees in the body being clothed with long hairs; but it differs
from these species in the colours of the adpressed pile and in the markings of the elytra.
The false subapical suture of the fifth ventral segment in the female is sharply marked,
and the more deceptively resembles a true suture, as the greenish-ochreous coloured
pile abruptly ceases there, leaving the apex and the large sixth segment glabrous.
Three examples — two males, one female.

4. Isonychus vittatus.

Isonychus vittatus, Burm. Handb. der Ent. iv. 2, p. 47 ^
Hah. Mexico i.

This species is not contained in our collections.

5. Isonychus tomentosus.

Isonychus tomentosus, Burm. Handb. der Ent. iv. 2, p. 48 \
Hah. Mexico 1. '

I have not seen specimens of any species answering the above-cited description.

6. Isonychus chiriquinus.

Oblongus, minus convexus, obscure fuscus, subsenescens, pilis recumbentibus (nee adpressis) pallidius fuscia
undique vestitus, solum elytrorum interstitio 4" interdum cinereo-maculato ; clypeo antice valde angustato,
antice subtruncato, angulis obtusis, supra alveolato-punctato ; elytris interstitiis alternis latioribus convexi-
oribusque ; antennis toto fulvo-rufls ; pygidio sat dense umbilicato-punctulato.

<J . Yentris segmentum 5™ medio angustius triangulariter planatum et declive nee denudatum.

Long. 8-10 millim.

Hah. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). — Colombia, Sierra
Nevada de Santa Marta [ex coll. Simons).

Five examples from Chiriqui, all males. The single example from Santa Marta is
larger (10 millim.), and has more even elytral interstices.

7. Isonychus aurantiacus.

Isonychus aurantiacus, Burm. Handb. der Ent. iv. 2, p. 50 \
Hah. Mexico 1.

Not contained in our collections.

8. Isonychus limbatus.

Isonychus limbatus, Burm. Handb. der Ent. iv. 2, p. 51 \
Hah. Mexico 1.

Also unknown to us. Burmeister described both the foregoing and his other Mexican
species from Dupont's collection.

150 . LAMELLICOEXIA.

9. Isonychus paradoxus. (Tab. IX. fig. 15, c?)

Oblongus, minus convexus, genescenti-fuscus, pilis brevibus adpressis fulvis passim interruptis vestitus, setulis
brevibus suberectis intermixtis ; antennis, femoribus tarsisque rufescentibus ; clypeo sicut in J. ocellato,
angulis rotundatis ; thorace subtiliter crebre punctulato ; elytris interstitiis alternis convexis, interstitiis
planis 2°-4'' et 8° maculis nonnullis fusco-nigris, velutinis, callo apicali valido ; corpore subtus fere glabro,
ventris segmentis basi nigricantibus, cinereo-maculatis ; pygidio brevi, piloso, vitta mediana glaberrima.

Tibiae 4 posteriores, sicut in Hopliis plurimis, serratis sed gracilioribus.

c?. Yentris segmentum 5" medio transversim depressum, umbilicato-punctulatum ; tibise postiese apice uni-
ealcaratge.

Long. 11 millim.

Hah. Panama, Volcan de Chiriqui 4000 to 6000 feet {Champion).

Two males only. The tarsal claws in this anomalous species are stronger and
more curved, and the parts of the mouth more robust and prominent than in the other
known members of the genus.

BARYBAS.

Barybas, Blanchard, Cat. Coll. Ent. i. p. 94 (1850); Lacordaire, Gen. Col. iii. p. 260 (1856).
Microcrania, Eurmeister^ Handb. der Ent. iv. 2, p. 26 (1855).

Burmeister (l. c. p. 536) shows that the first of Blanchard's two species, JS. varieyatus,
Germ., is wrongly named, being an Isonychus^ and thinks that his second, B. nanus,
does not belong to the genus, but is synonymous with his Hercitis 'pygmma. There
is room to doubt the latter identification ; and Blanchard's phrase, " ungues — posticorum
— externo majore simplici interno fisso," may be regarded as sufficient to fix the genus,
in spite of the incompleteness of the whole diagnosis. Lacordaire's definition fills up
the lacunes in Blanchard's, but is some months posterior in date to the still better
description of Burmeister.

The genus is peculiar to Tropical America, and numerous in species, though barely
half a dozen are yet described. It is interesting as showing a relationship to the
Hopliinse.

1. Barybas auritns. (Tab. IX. fig. 16.)

Oblongus, fuscus sive castaneus, squamulis anguste lanceolatis fulvo-cinereis fere in yittas subcongestis vestitus ;
clypeo brevi, antice latissime truncato rectangulato, utrinque pone angulum sinuato genisque lobato-
productis ; thorace sequaliter convexo, lateribus simpliciter rotundatis, angulis posticis rotundatis, umbili-
cato-punctato ; elytris umbone juxta-scutellari callisque apicalibus mediocribus, his squamis fasciculatis
subtiliter discrete striguloso-punctulatis ; pygidio eleganter umbilicato-puuctato ; antennis pedibusque
rufescentibus.

Tibise anticse cJ bi-, $ tridentatae.

Long. 6-7| millim.

(J . Tarsi anteriores articulo basali apice intus spina recxirva armato ; pygidio sequaUter convexo.

$ . Tarsi anteriores inermes ', pygidio inaequali, utrinque tuberoso.

Eab. Panama, David, Caldera in Chiriqui {Champion).

BAEYBAS. 151

Distinguished from other described species by the peculiar shape of the clypeus in
both sexes*.

2. Barybas idiota.

Oblongus, crassus, fuscus, aspere subrugose (thorace grossius, elytris subtilius) punctatus, squamis anguste lanceo-
latis cinereis vel fulvo-ochraceis vestitus, squamis adpressis interdum (prsecipue apud pygidium) elevatis ;
clypeo brevissimo, cum genis rotundato ; thorace valde et aequaliter convexo, lateribus late rofcuudatis (mar-
gine serrato), angulis posticis subrectis ; elytris umbone callisque medioeribus ; pygidio annulato-punctato.

S . Tibiae anticse bidentatse ; tarsi articiilo basali apice intus spina brevi : pygidio lateribus postice sulcatis.

2 . Tibiae antics subtridentatse (dente superiore lato parvo) ; tarsi inermes ; pygidio latiore brevioreque, simpliee.

Long. 8-9 millim.

Hab. Nicaragua, Chontales (JBelt, Janson). — South America, Upper Amazons.

The clypeus, together with the genae, is broadly rounded ; it is reflexed and separated
from the forehead by a distinct suture, forming a border to the head of equal width
throughout.

Two examples only, both males, from Chontales. I have supplemented the descrip-
tion from females taken on the Amazons. In some examples, especially in those from
the Upper Amazons, the scales are elevated, nearly vertically so on the thorax and
pygidium, and congested in small spots on the elytra ; but in others from the same
localities they lie perfectly flat.

3. Barybas oxygenys.

Oblongus, convexus, fuscus, aspere punctulatus, squamis lanceolatis recumbentibus fulvis vestitus, elytris spatiis
glabris ; clypeo rotundato, genis acutis ; tborace aequaliter convexo, lateribus rotundatis (margine integro),
angulis posticis obtusis sed distinctis ; antennis rufis ; pedibus rufescentibus ; tibiis anticis cj $ tridentatis.

S . Tarsi antici articulo basali apice intus breviter spinoso. •

5 . Tarsi antici articulo basali apice intus simpliee.

Long. 6 millim.

Hab. Panama, Bugaba [Champion). Two examples only.

The clypeus is reflexed, and forms an anterior border to the head, which is much
wider in the middle than at the sides. The gense project in an acute angle close to
the eyes.

* The following species has the same feature, but somewhat less developed : —

Barybas sublobatus.

Oblongus, castaneo-fuscus, squamulis (sive pilis) brevibus cinereis interrupts vestitus ; clypeo brevi, antice late
truncate obtusangulato, utrinque pone angulum leviter sinuate genisque late sublobatis ; thorace sequaliter
convexo, lateribus rotundatis, angulis posticis fere rectis, umbilicato-punctato ; elytris umbone mediocri,
callis apicalibus squamis fasciculatis, crebrius subtiliter punctato-strigulosis ; pygidio creberrime umbUi-
cato-punctulato ; antennis pedibusque rufescentibus ; tibiis anticis S $ tridentatis. (5" . Tarsi anteriores
articulo basali apice intus reete spinoso ; pygidio gequaliter convexo. $ . Tarsi anteriores inermes ; pygidio
planato, prope apicem medio tuberculis conicis approximatis duobus.

Long. 6-9 millim.

Hob. Amazoks, Ega (coll. Bates).

.>^0f"

152 LAMELLICOENIA. ^

PSEUDOSERICA.

Pseudoserica, Guerin, Voy. de la Coquille, Ent. p. 86 (1830).

Plectris, Serv. (partim), Blanchard, Cat. Coll. Ent. i. p. 125 (1850) ; Lacordaire^ Gen. Col. iii.

p. 260 (1856) .
Philochlania (partim), Burmeister, Handb. der Ent. iv. 2, p. 28 (1855) (nee Philochlania, Blanch.

1850).

Among the numerous cases of involved and almost inextricable synonymy created by
the independent publication of Burmeister's monograph of the Melolonthidse, that
resulting from the opposite view taken by him and Blanchard of the genus Philochlcenia
is perhaps the worst. Burmeister had been many years working at his monograph of
this family, and Blanchard's descriptive catalogue having in the meantime appeared,
he found the task of reconciling his work with that of his predecessor hopeless,
and brought it out with a few synonymicaL notes only in the Appendix. Lacordaire's
* Lamellicornes' volume appeared too soon after Burmeister's publication for the
revision which that patient and keen-sighted entomologist would otherwise, no doubt,
have undertaken. Philochlcenia^ up to Blanchard's time, was a catalogue-name only,
and although it then included more than one distinct generic type urgently in need of
defining, this author unfortunately chose, as its first or typical section, species which
make it virtually a synonym of the much older genus Plectris. A generic name
which it would have been useful to retain thus falls through, unless the extreme
inequality and separate movability of the tarsal claws of the first section should
hereafter render it desirable to retain Philochloenia as a genus distinct from Plectris.
Burmeister's genus Philochloenia^ on the other hand, consists chiefly of species wrongly
included in Plectris by Blanchard. The majority of these seem to me to form a
natural genus allied to Plectris in facies and in the relative length of the basal
joint of the hind tarsi ; but diff'ering in the claws being all equal and more or less
divaricated, and in the elytra having a distinct membranous border, the border being
at most a fine hair-fringe in Plectris. They all have a sinuated clypeus, and the
lab rum so deeply sinuated as to be bilobed — characters which all Burmeister's Philo-
chlwnicB do not possess, for his P. chalcea {=Alvarinus suhmet alliens, Blanch.), and
possibly most of his Section I., have a rounded clypeus and small arcuate-emarginate
labrum. The posterior tibiae have two apical spurs in both sexes. This group is con-
generic with the Pseudoserica marmorea of Guerin, and it will be in accordance with
the rules of priority, therefore, to resuscitate Guerin's name in re-establishing the
genus on a broader basis.

I have seen about a score species belonging to Pseudoserica, very few of which
answer the description of the twenty or thirty described by Blanchard and Burmeister.
They are peculiar to Tropical America.

PSEUDOSEEICA. 153

1. Pseudoserica micans. (Tab. IX. fig. 17.)

Philochleenia micans, Kirsch, Berl. ent. Zeitschr. 1885, p. 217 \

Hah. Panama, Volcan de Chiriqui 2500 to 4000 feet, David (Chamjiion). —Sovtr
America, Ecuador i.

Five examples, agreeing with Kirsch's excellent description ; but two of them only
are of the colour he particularizes, viz. : — "braunroth, Kopf und Halsschild dunkler."
The others are rich purple coppery-brown, silky on the elytra and metallic in certain
aspects on the thorax.

A specimen from the Volcan de Chiriqui is figured.

2. Pseudoserica aeruginosa.

Philochlania ceruginosa, Burm. Handb. der Ent. iv. 2, p. 32 \
Hah. NiCAEAGUA, Chontales {Belt). — South America, Colombia ^.

One example. Differs from P. micans by its brassy-brown colour, the thorax desti-
tute of pruinose bloom, and the punctuation much finer and closer — in all of which
points it agrees with Burmeister's description.

Other closely allied species, or varieties, from Ecuador and Venezuela, are known in
collections.

3. Pseudoserica setisparsa.

Oblongo-ovata, castaneo-fusca senescens, setis reclinantibus albidis conspersa ; capite confluenter punctate ;
clypeo subprofunde siniiato, lateribus utrinque leviter sinuatis ; thorace post medium angulatim dilatato,
sat crebre (cum scutello) umbilicato-punctato, marginibus lateribus crenulatis ; elytris ruguloso-punctatis,
substriatis ; corpore subtus longius piloso cum pygidio dense umbilicato-punctato ; tarsis omnibus ( c? ?)
subtus dense pilosis, posticis articulo basali quam 2° et 3° conjunctis longiore ; tibiis anticis 3-dentatis ;
antennis (9-articiilatis) pedibusque testaceo-rufis.

Long. 8 millim.

Hah. Guatemala, Zapote {Cham;pion) ; Nicaragua, Chontales {Belt).

Two examples only. The short whitish setae are of uniform length on the thorax
and elytra, and without mixture of longer setse in rows or otherwise : all are reclined
backwards. Six or seven striae on each elytron are indicated by the slight convexity
of the corresponding interstices *.

* A very similar species, widely spread over the Amazons valley, is liable to be confounded with the above,
and may be here described in order that the differences of the two, and of two other common species, may be
pointed out : —

Pseudoserica amazonica.

Oblongo-ovata, cuprascenti-fulvo-fusca, interdum viridi-seneo tincta, setulis reclinantibus (pilis sparsis multo
longioribus intermixtis) fulvis, thorace densius longipiloso ; capite confluenter punctate ; clypeo sub-
profunde sinuate, lateribus utrinque leviter sinuatis ; thorace post medium rotundato-dilatato, crebre
sed discrete punctulato, punctulis singulis e punctulis minoribus compositis ; elytris crebre subruguloso-

BiOL. centr.-amer., Coleopt., Vol. II. Pt. 2, Becemher 1887. XX

151 LAMELLICORNIA.

4. Pseudoserica integrata. (Tab. ix. %. 18.) '

Oblongo-ovata ; S purpureo-fusca, opaea, 2 castaneo-fusca, interdum senescens, nitida ; setulis iuclinatis
separatis vestita, elytris setulis loBgioribus sparsis fasciculoque apud callum apicale ; capite grosse coh-
fluenter piznctato, clypeo perpanim sinuato, labro medio usque ad clypei marginem excavato ; thorace et
elytris S discrete punctulatis, J grossius subconflueuter punctatis, apud thoracem c? punctis e punctulis
minoribus compositis ; corpore subtua pygidioque umbilieato-punctatis, metasterno medio breviore, polito ;
tarsis posticis articulo basali mediocriter elongato, quam 2° et 3° conjunctis pauUo longiore ; pedibus rufes-
centibus. Antennae rufo-testacese, Q-articulatae, clava d" valde elongata. Tibiae anticae c? 2 bidentatae.

Long. 8 millim.

Ilah. Panama, Bugaba (Champion). Numerous examples.

Subfam. BIPLOTAXINyE.

This group is distinguished from the " Macrodactylinse " (with which it agrees in the
free labrum and abdominal segments and in the conical, obliquely exserted, anterior
coxse) by the nearly equal lengths of the ventral segments 2—5. Species in vvhich the
fifth ventral segment is a little the largest are found in Liogenys only, which is thus
shown to be a connecting-link with the " Macrodactylinee." The obliteration of the
suture between the fifth ventral and the penultimate dorsal segment, adduced as a dis-
tinguishing character by Leconte, holds good with American genera, although there is
a trace of a suture in some examples (not in others) of Liogenys ])alpalis *. In all, the
thorax in front has a membranous margin, and the elytra a very narrow similar margin.

punctulatis vix costulatis ; corpore subtus pygidioque annulato-punctatis ; tarsis subtus dense pilosis,
posticis articulo basali tribus sequentibus conjunctis fere aequali ; tibiis anticis 3-dentatis ; antennis (10-
articulatis) pedibusque rufo-testaceis.
Long. 8-11 millim.

Eab. Amazous, ubique.

The additional antennal joint, the fifth, is very small. The species differs from the equally 10-jointed
P. jiavohirta, Blanch., which is apparently still more widely distributed in Equatorial South America, by its
smaller size {P. Jlavoliirta being 12 to 14 millim.) and the finer and much less dense sculpture; both difier
from P. setisparsa in the numerous long erect hairs (scattered partly in lines on the elytra and forming a
rather dense brush on the thorax), which rise far above the short reddish-tawny subrecumbent pile. In
P. amazonica and P. Jiavohirta the first joint of the hindmost tarsi is equal in length to joints 2-4, and about
double the length of the second ; in the following species it is still longer absolutely and relatively : —

Pseudoserica longitarsis.

Liter P. flavoJiirtam et P. amazonicam ; ambobus difiert thorace densissime (baud eonfluenter) punctato, elytro-
rum setis et pilis magis cinereis tarsisque posticis articulo basali longissimo, cseteris 4 conjunctis fere
sequali : capite thoraceque viridi- vel cupreo-seneis ; csetera sicut in P. amazonica.

Long. 12-13 millim.

Hah. Uppee Amazons.

* The obliteration of the suture is not peculiar to the Diplotaxinse ; it is seen in some Macrodactylinae, e. g.
Ancistrosoma.

LIOGENTS. 155

Liogenys is so closely linked to Biplotaxis by finely graduated forms and the structure
is so nearly identical, that there is no reason for the sharp separation of the two genera
as hitherto made in classifications of the Melolonthidae.

LIOGENYS.

Liogenys, Guerin, Voy. de la Coquille, Zool. ii.^ Col. p. 84 (1838); Burmeister^ Handb. der Ent.
iv. 2, p. 12 (1858); Lacordaire, Gen. Col. iii. p. 268 (1856).

An exclusively American genus, extending from Mexico to Chili, but apparently not
continued into temperate North America. About twenty species have been described.

1. Liogenys quadridens.

Melolontha quadridens, Fabr. Ent. Syst. Suppl. p. 131.
Liogenys quadridens, Burm. Handb. der Ent. iv. 2, p. 14 \
? Liogenys quadridentatus, Blanch. Cat. Coll. Ent. i. p. 168 ^

Eab. Panama, Volcan de Chiriqui 2500 to 4000 feet {Champion). — South America,
Colombia and Guiana i, Amazons, Monte Video ^.

2. Liogenys morio.

Liogenys morio, Burm. Handb. der Ent. iv. 2, p. 16 \
Eab. Central America 1.

I have seen no species answering Burmeister's description.

3. Liogenys macropelma. (Tab. ix. fig. 19.)

Oblongus ( 2 magis ovata), minus convexus, niger vel castaneus, supra et subtus nudus nitidus, subtus et
pedibus rufo-piceis, antenuis testaceo-fulvis ; sat grosse disperse punctatus ; capita mox ab oculia
angustato, clypeo late obtuse bidentato, cum fronte concavo ; elytris gemiiiato-punctato-striatis ; pygidio
magno, subplano, apice late subtruncatim rotundato, grosse sed baud dense punctato ; ventris segmentis
2°-5™ longis, fere sequalibus, 6" mediocriter elongato ; antennarum clava birsuta.

c? . Pedes elongati, graciles ; tarsi postici graciles, subtus dense birsuti, articulo 1° sequente plus quam
dimidio breviore ; tarsi quatuor anteriores articulis 2", 3° et 4° basi pauUo dilatatis, l°-4'" subtus palmatis,
densissime pilosis.

2 . Pedes et tarsi mediocriter elongati, horum articulis subtus minus dense pilosis, baud dilatatis.

Long. 10-11 millim.

Hob. Panama, Volcan de Chiriqui 2500 to 4000 feet {Champion).
Numerous examples.

4. Liogenys pnbisternis. (Tab. IX. fig. 20.)

L. jjaljpali similis et affinis, convexus, testaceo-rufus, supra glaber nitidus, sternis femoribusque longissime
fulvo-birtis ; capite ab oculis rotundato- angustato ; clypeo producto, late bidentato, supra concavo
sparsim punctato ; thorace disperse punctato ; elytris sat crebre punctulatis utrinque costulis angustis
parum elevatis quatuor. Tarsi postici articulo 1" sequente paullo breviore.

XX 2

156 LAMELLICOENIA.

c? . Tarsi gracillimi, subtus pilosi ; anticis artieulis 2''-4'" mediocriter dilatatis, subtus palmatis densissime

pilosis ; intermediis perparum dilatatis.
Long. 14 millim. c? •

Hob. Mexico [Salle, ex coll. Sturm). Two male examples only.

So closely resembling the Chilian L. palpalis (Eschsch.) that if it were not for the
much narrower dilatation of the male tarsal joints I should have little hesitation in
referring it to that species. The form, colour, pubescence, punctuation, and shape of
the head are exactly as in ordinary examples of L. palpalis ; but the hind tarsi are
longer, much thinner, and less hairy beneath; and the dilated second to the fourth and
the base of the first joints of the two anterior pairs are much narrower than long, the
fourth of the anterior and the second to the fourth of the intermediate pair further
differing in being only a little broader than undilated joints.

5. Liogenys pubereus. (Tab. IX. fig. 21, 2 .)

Sat elongato-oblongus, undique pilis brevibus discretis inclinatis fulvis ; nigro-seneus vel (immaturus ?)
castaneus, aeneo-tinctus, antennis et tarsis rufo-piceis, Hlis clava fulva ; capite lato, crebre grosse punctato ;
clypeo parum angustato, antice late subsinuatim truncate, angulis acutis ; thorace transverse, dense punc-
tate, angulis posticis apice acutis ; elytris sat dense regulariter punctatis, geminato-striatis sed costis baud
elevatis, seriatim punctatis ; pygidio parvo, grosse punctato ; sternis abdemineque punctatis, medio
Isevieribua ; tibiis anticis bidentatis.

(S . Tarsi 4 antici artieulis 10-4"" latioribns, oblongis, subtus palmatis densissime pilosis ; casteris subtus minus
dense pilosis. Pedes toti pilosi. Ventris segmentum 6™ interdum latens.

5 . Tarsi 4 antici artieulis lo-4™ subtus dense pilosis sed baud dilatatis ; cseteris subtus minus dense pilosis.
Pedes toti sparsim setosi nee pilosi. Yentris segmentum 6"" conspicuum sed breve.

Long. 12-13 millim.

Hah. Mexico, Cordova, Etla, Peras, Oaxaca {Salle), Vera Cruz {Edge).
Var. 5 . Cuprascens ; sparsius punctatus, fere nudus (? detritus).

Eah. Mexico, Panislahuaca(/S'«//e).

Numerous examples in the Salle collection are named Liogenys crihratiGollis, Reiche
(MS.), a name which I do not adopt, as it might lead to confusion with Biplotaocis
crihraticollis, Blanch., L. j)ubereus being an aberrant Liogenys with characters showing
an afianity with Liplotaxis.

A specimen from Etla is figured.

6. Liogenys (?) ?

Eah. Mexico, Yolos {Salle).

A single female example without pubescence above {% abraded), and very coarse
and sparse sculpture.

7. Liogenys (?) ?

Hab. Mexico, Cordova {Salle).

LIOaENYS.— DIPLOTAXIS. 157

Of this there is also only a single female example. It is of a bright metallic colour
and certainly distinct from L. ^puhereus, but its genus cannot be determined without
a knowledge of the other sex.

DIPLOTAXIS.

Diplotaxis, Kirby, Fauna Bor.-Amer. iv. p. 129 (1840) ; Lacordaire, Gen. Col. iii. p. 275 (1856) ;
Leconte^ Journ. Acad. Nat, Sc. Phil. 2nd ser. iii. p. 265 (1856).

A genus apparently confined to North America, represented by numerous species in
the United States and Mexico, but not extending further south than Costa Eica, though
one species occurs in the West Indies. About forty species have been described.

I. Clypeus (^rceci^ue in s ) quadratus, antice late sinuatus ; corpore recumhenti'

cinereo-setoso.

1. Diplotaxis pilifera. (Tab. IX. fig. 22, s .)

Liogenys pilifera, Burm. Handb. der Ent. iv. 2, p. 16^.
- Hah. Mexico ^ Iguala in Guerrero (iZo^^).

The tarsi are remarkably short in both sexes, fringed beneath with hairs, the joints
1-3 of the two anterior pairs densely hairy. The sixth ventral segment is conspicuous
in both sexes.

2. Diplotaxis clypeata. (Tab. IX. fig. 23.)

Angustior, viridi-schistacea vel cuprea, elytris interdiim (immatura ?) castaneis, breviter albido-setosis, setis in
elytris (sicut in D. pilifera) lineatim ordinatis, antennis nigris, tibiis tarsisque plerumque testaceo-rufis ;
creberrime punctata, subopaea ; thorace sat parvo, antice angustato, angulis posticis rotundatis ; elytris
costis parum elevatis, pnnctatis ; ventris segmento 6° parvo ; tibiis anticis tridentatis ; tarsis omnibus sat
gracilibus, uBguibus dente apicali inferiore nee latiore nee magis curvato.

cJ . Clypeus magis quadratus, angulis anticis subproductis. Tarsi subtiis sparsim breviter setosi. Segmenta
ventralia medio setis rigidis armata.

$ . Clypeus trapezoideus. Tarsi paullo breviores, subtus sparsissime setosi.
Long. 6-7 millim.

Hah. Mexico, Yolos {Salle).

Named Fhilochlwma cly;peata (Deyr., MS.) in the Salle collection ; but the broadly
arcuated labrum and the non-elongated fifth ventral segment show that it does not
belong to the same subfamily even as PhilocUcenia. The short bristly clothing and
(in the male) rather elongate and quadrate clypeus of this and the preceding species,
though opposed to the typical forms of Diplotaxis, cannot suffice to distinguish them
generically from that genus.

The totally different clothing of the soles of the male tarsi and the length of the
joints in species so very closely allied in other respects as D. clypeata and B. pilifera
show what abrupt variations have been at work in the group.

158 LAMELLICOENIA.

II. Clypeus {^rmcipue in 6 ) trapezoidalis ; corpore supra glahro, inter dum hirto.

3. Diplotaxis senea.

Diplotaxys cenea, Blanch. Cat. Coll. Ent. i. p. 173 \
Liogenys pauperata, Burm. Handb. der Ent. iv. 2, p. 16 ^

Hah. Mexico, Vera Cruz ^ 2, Capulalpam, Cordova, Silao, Cuernavaca {Salle), San
Juan del Rio, Esperanza, Pachuca in Hidalgo [Hoge), Guanajuato [Salle, Hoge).

Usually dark brassy-green or bluish in both sexes, with the antennae (except the club)
reddish ; but varieties occur (at Silao and Guanajuato) in which the elytra and legs
are more or less rufous, and the female in some cases wholly dull reddish-brown. The
brown variety of the female was cited by Burmeister as synonymous with JD. simplex
(Blanch. I. c. p. 172), but this appears doubtful.

The clypeus is large, as in Section I.; but is trapezoidal and not quadrate in the male,
although the anterior angles are more acute owing to the sinuation of the front edge
and a slighter sinuation of the lateral margin near the angle. The sixth ventral seg-
ment is exposed in both sexes, and the male tarsi (especially the four anterior), though
not at all dilated, are fringed with hairs beneath, as correctly described by Burmeister.
The thorax is always finely and densely punctured ; and the elytra a little more coarsely
and subrugosely punctured, but with the punctures distinct.

4. Diplotaxis cribraticoUis.

Diplotaxys cribraticoUis, Blanch. Cat. Coll. Ent. i. p. 171^.

Hab. Mexico 1, Tepansacualco, Yolos, Guanajuato [Salle).

According to the Salle collection, this is the largest of a small group of Mexican and
Guatemalan species, of uniform reddish-testaceous (sometimes a little darker) colour,
in which the males have a broad trapezoidal clypeus with prominent angles and sinuated
front edge ; the sides of the clypeus a little irregular and the surface concave and
more coarsely punctured than the forehead ; the thorax strongly rounded behind the
middle and narrowed thence to the head, with rounded hind angles ; and the tarsi in
the male fringed beneath with fine hair.

The Salle specimens are 10-11 millim. long (Blanchard gives 10 millim.) ; the
flat interstices between the geminated strise are not '' Isevibus " as Blanchard states, but
have a row of punctures ; and the anterior tibise are not " bidentatis," but show a
distinct though small third upper tooth. If they really belong to Blanchard's species,
that author's description of the thorax as " dense subtiliterque punctato " is not very
fitting, as the punctures, though finer than those of the elytra, are tolerably widely
scattered over the surface.

. DIPLOTAXIS. 159

5. Diplotaxis trapezifera. (Tab. ix. fig. 24, 6 .)

D. cribraticolli quam maxime affinis ; differt S clypeo longiore et magis angustato, anguste trapeziformi, late-
ribus subrectis, apice sat angusto, sinuato, Toto rufo-testacea, supra nuda ; clypeo concavo, grossissime
punctato, fronte subtilius punctata ; thorace angulis posticis rotundatis, antice angustato ; elytris discrete
punctatis, geminate-pun ctato-striatis, costis baud elevatis, subtiliter et sparsim seriato-punctatis ; pygidio
propygidioque grosse et profunde discrete, ventre sternoque medio subtilius disperse, punctatis.

Tarsi c? subtus fimbriato-pilosi ; 9 vix pilosi clypeoque angulis obtusis. Ventris segmentum 6™ breve,
interdum (retractum) margine tantum perspicuo.

Long. 7-8i millim.

Hah. Mexico, Ventanas, Presidio, Tres Marias Islands (Forrer), Cordova, Tepanistla-
huaca, Juquila, Puebla, Yucatan (Salle), Villa Lerdo, Tejeria, Guanajuato, Amecameca,
Cuernavaca, Jalapa, Chilpancingo in Guerrero (Hoge) ; British Honduras, E. Sarstoon
(Blancaneaux) ; Guatemala (Salle), near the city (Champion) ; Costa Eica, Volcan de
Irazu (Sogers).

In all the numerous examples of the male the sides of the head form a straight,
sometimes slightly incurved, line from the ocular canthus to the apical angle of the
rather narrow trapeziform clypeus. Gradations occur between this simple outline and
a form in which the sides are angularly flexuous ; of these the following two varieties
are distinguishable : —

Var. 1. D. consentanea (Chevr. in coll. Salle). — (S . Gracilior ; clypei lateribus juxta apicem sinuatis, dentis
apicalibus acutioribus ; fronte medio antice plerumque eoncava.

Ha5. Mexico, Orizaba, Guanajuato, Puebla, Etla (Salle), Mexico city (Flohr), Chi-
huahua city, Durango city, Jalapa (Edge); Nicaragua, Chontales (Janson).

Var. 2. D. denticeps. — S . Clypei lateribus juxta apicem sinuatis et postea in dentem latum obtusum
dilatatis.

Rab. Mexico, Salazar, Toluca, Durango city (Hoge), Mexico city (Flohr, Hoge).

This variety resembles much Liogenys quadridens (Fabr.) ; the clypeus, however, is
much longer and the lateral dentiform dilatation does not form a long sharp
tooth.

A further variety, differing in colour only from the typical B. trapezifera, but
sometimes showing a slight lateral sinuation near the apical angle of the clypeus,
is : —

Var. 3. D. hicolor. Supra castaneo-fusca (tborace, scutello elytrorumque limbo interdum rufis), subtus rufo-
testacea.

Hah. Mexico, Yolos, Peras, Oaxaca (Salle).

The species varies also in a rather important structural character, viz. the form of
the lower apical tooth of the claws : in the vast majority of specimens this is, as in
most other species, broader (especially at the apex) and more curved than the upper,
but in others it is gradually tapering, like the upper tooth. Examples of this variation

160 LAMELLICOENIA.

are from Presidio and Tejeria, and offer no other character to distinguish them from the
ordinary form of the species.

A typical male specimen from Jalapa is figured.

6. Diplotaxis nigriventris.

D. trapeziferce exemplis minoribus similis, sed differt colore castaneo-fusco, subtus fiisco-nigro, pedibus castaneo-
rufis ; clypeo minore, apice sat profunde sinuate ; corpore subtus pygidioque undique grosse et profunde
sed discrete punctatis.

Long. 6 1 millim.

Hah. Mexico, Presidio (Forrer).

Evidently more distinct from the typical I), trapezifera than any of the varieties
described above. The clypeus is not quite so long, and is rather angularly sinuated on
its front edge. There is little or no difference in the form of the thorax or in the
sculpture of the upperside ; but the underside is thickly strewn with large circular
punctures.

7. Diplotaxis nitidicollis.

Diplotawys nitidicollis, Blanch. Cat. Coll. Ent. i. p. 171 ^.

Hab. Mexico ^ ; Guatemala {SalU), Capetillo (Champion) ; Costa Rica, Volcan de
Irazu (Bogers).

Three examples in the Salle collection labelled D. nitidicollis, Blanch., agree fairly
well with the description. The clypeus is short and broad, trapezoidal, with the front
edge sinuated and the angles slightly prominent but rounded and each side towards the
gense broadly and angularly sinuated. In the male the pygidium is flat, and the sixth
ventral segment exposed ; in the female it is convex, and the sixth segment concealed.

8. Diplotaxis poropyge.

Oblonga, convexa, erecte fulvo-pilosa, castanea interdum cuprascens, subnitida ; capite alveolato-punctato ;
clypeo brevi, trapezoidali, angulis latis obtusis sed prominulis, lateribus paullo sinuatis ; thorace grosse
punctato, angulis posticis fere rotundatis ; elytris sat dense et profunde sed discrete punctatis, interstitiis
suturalibus et costalibus sequaliter seriatis, costis hand elevatis ; propygidio et pygidio grossissime alveo-
latis, corpore subtus grosse discrete punctato, pygidio utroque sexu parvo subrotundato ; unguibus
normalibus.

Long. 9-10 millim.

Hab. Mexico, Cordova, Chiapas (Salle) ; Guatemala, San Geronimo, Paso Antonio,
Mirandilla (Champion).

The punctuation of the elytra is peculiar, the row of punctures along the sutural
interstice and on the usual costse being as strong and close as the punctured striae
limiting the costse, the latter being only faintly indicated.

DIPLOTAXIS. 161

9. Diplotaxis crinigera.

D. poropijgi proxime affiuis, minor, castaneo-fulva, nitida, pilis ereetis fulvis undique et densius quam in
D. 'poropyge vestita ; clypeo antice lateribusque fortius sinuatis ; thorace valde differb densius et subti-
lius punctate, angulis posticis fere reetis medioque angulatim dilatato ; pygidio et propygidio grosse
confluenter punctatis.

Long. 7|-8 miliim.

Sah. Guatemala, near the city {Champion).
Two examples only.

10. Diplotaxis corrosa.

B. cenece similis, sed minus angusta, postice dilatata, rugoso-punctata etc. Obscure viridi-senea, parum nitida,
grosse confluenter vel ruguloso-punctata, postice interdum brevissime griseo-setosa ; elytris lateribus setis
longis rigidis griseis fimbriatis ; clypeo trapezoidali, angulis anticis (in J acutius) angulatis, genis pauUulum
rotundatis ; thorace post medium rotundato-dilatato, angulis posticis valde obtusis, spatio discoidali Isevi ;
elytris costulis duabus sat eonvexis ; pygidio grossissime et densissime punctate ; ventre minus grosse
et dispersius punctato, griseo-setoso ; tarsis rufo-piceis ; antennis palpisque nigris.

Long, 6|-7 miliim.

Hab. Mexico, Alvarez Mountains (Dr. Palmer).

Var. I), pachucana. Elytra plerumque vitta lata utrinque rufa. (Tab. IX. fig. 25.)

Hab. Mexico, Pachuca in Hidalgo [Hbge). A large number of examples.

Apparently allied in some respects to D. rugosipennis, Blanch., which has, however,
the antennae, palpi, legs, and pygidium red. The males have not finely fimbriated
anterior tarsi as in J), mnea. The colour is uniform. We figure an example of the
variety from Pachuca.

11. Diplotaxis coriacea.

Angusta, seneo- vel cupreo-fusca, dense et sat longe griseo-pilosa ; capite parvo, clypeo trapezoidali supra concavo,
antice valde sinuate, discrete (fronte dense) punctato ; thorace longe post medium rotundato-dilatato
(angulis rotundatis) deinde antice valde angustato, dense sequaliter punctate ; elytris dense subrugulose
punctatis, costulis vix perspicuis ; pygidio densissime, ventre paullo sparsius, grosse punctatis ; palpis
antennisque rufis ; pedibus picee-rufis ; tibiis anticis acute 3-dentatis.

Long. 6|-8 miliim.

Eah. Mexico, Presidio and Ventanas (Forrer), Cordova {Salle).

The pubescence in well-preserved examples is tolerably long, slanting, dense, and
regular over the whole surface from the forehead to the pygidium inclusive ; on the
underside it is abundant, but more irregular in length. The single example from
Cordova in the Salle collection (bearing the MS. name Diplotaxis coriacea, Klug) is
more brassy and has the pubescence shorter (partly abraded) than Ferrer's specimens
from more northern localities.

The head is not very different in shape (comparing examples of the same sex together)
from that of D. cenea ; but the clypeus appears to be a little narrower, and more
narrowed in front, with sharper apical angles.

BIOL. CENTR.-AMEE., Coleopt., Vol. II. Pt. 2, January 1888. YY

162 LAMELLICOENIA.

12. Diplotaxis •

Hab. NoETH Ameeica, Arizona. — Mexico, Northern Sonora {Morrison).

Sent by Morrison as B.jjuherula, Lee, which appears to be an erroneous determination.
D. puherula is a Texan species, differing in form and sculpture from Morrison's insect.

13. Diplotaxis parvula.

Diplotaxis parvula, Burm. Handb. der Ent. iv. 2, p. 264^.
Hah. Mexico 1, Juquila (^6?^/e).

A glabrous and shining pitchy-black species, with short and broad trapezoidal,
unsinuated, very coarsely punctured clypeus, the forehead depressed in the middle,
and sparingly punctured thorax, pygidium, and abdomen. The sutural interstice of
the elytra is minutely and rather thickly punctured.

14. Diplotaxis sinuaticeps.

D. parvulce proxime affinis, difFert colore senescenti-nigro, abdomine crebrius et grossius pygidioque grossissime
alveolatim punctatis. Oblongo-ovata, aenescenti-nigra, nitida, palpis et antennis pallide rufis, pedibus rufo-
castaneis ; supra glabra, subtus cum pygidio parum dense fulvo-pilosa ; clypeo brevi et lato trapezoidali,
apice truncate, vel ( $ ?) rotundato, grosse punctato, sutura frontali argute impressa medio angulata
ibique fronte leviter impressa ; thorace lato, mox pone medium mediocriter rotundato-dilatato, angulis
posticis obtusis sed distinctis, supra discrete punctate ; elytris subconfiuenter sed baud dense jranctatis,
costis distinctis parum elevatis ; pygidio parvo, grossissime alveolate, longe erecte pilose ; propygidie
ventreque lateribus dense et grosse punctatis, medio ventre Igeviore ; tibiis anticis valide tridentatis ; ventris
segmento 6° exserto.

Long. 6|-8 millim.

Hab. Mexico, Jalapa, Vera Cruz (Hoge), Playa Vicente (Salle).

The sutural interstice of the elytra has only a single row of minute punctures. Many
examples from Jalapa and Vera Cruz, and a single one from the Salle collection;
the last named is castaneous in colour, probably from immaturity. I received this
species many years ago from Paris under the MS. name D. sinuaticeps, Reiche. The
name cannot refer to the outline of the clypeus, but to the frontal suture.

15. Diplotaxis juquilensis.

Elongato-eblonga, rufo-castanea, supra cupreo-fusca, nitida, glabra ; clypeo brevi et lato trapezoidali, angulis
rotundatis, antice vix sinuatis, genis paulle rotundate-dilatatis, supra grosse, fronte subtilius, punctatis ;
thorace brevi et lato, antice utrinque (preecipue in c? ) marginato, prepe medium dilatato, lateribus antice
sinuatis, angulis anticis acutis, posticis distinctis sed obtusis, supra sat grosse et discrete hie illic subcon-
fiuenter punctate ; elytris elongatis, postice baud dilatatis, sat crebre et grosse subconfiuenter punctatis,
punctis plerumque transversis, costis angustis parum punctatis ; pygidio grossissime, ventre sparsius,
confluenter punctatis; tibiis anticis c? bidentatis, $ dente 3" parvo ; tarsis subtus c5' dense pilosis ; unguibus
posticis profunde fissis, dente inferiore vix breviore aut latiore.

Long, 7-8 millim.

Hab. Mexico, Juquila (Salle). Three examples.

In the male the apex of the elytra projects beyond the pygidium. The outline of
the clypeus is very similar to that of the female of B. nitidicollis.

DIPLOTAXIS. * 163

16. Diplotaxis atramentaria.

Oblonga, convexa, piceo-nigra ; subtus piceo- vel castaneo-rufa, glabra, subtilissime alutacea, serieeo-opaca ;
an tennis palpisque testaceo-rufis ; capite dense nee grosse subalveolato-punctato, sutura frontali valde
flexuosa ; clypeo brevi, lateribus valde convergentibus, subrotundatis ( $ ?), apice truncate ( c? ?), cum
angulis breviter dentatis ; thorace prope medium sat fortiter dilatato, antice recte postice rotundatim

, angustato, angulis anticis acutis, posticis obtusis sed distinctis, supra minute distanter punctate ; elytris
disperse subtilius punctatis, costis latis vix elevatis, interstitio suturali pluripunetulato ; pygidio profunde
discrete, ventre dispersius, rotundato-punctatis ; tibiis anticis valide tridentatis ; unguibus normalibus
(fissis dentibus subsequalibus).

Long. 9-10 millim.

Hab. Mexico, Peras (Salle), Villa Lerdo in Durango, Cuernavaca [Hbge).

Named D. atramentaria (Deyr. MS.) and D. rujicornis (Sturm, MS.) in the Salle
collection. Many examples.

The supposed female differs from the male, apart from the much shorter clypeus, in
the large punctures on the sides and apex of the ventral surface being much fewer in
number, and in the lower tooth of the claws being a little broader and more curved.

17. Diplotaxis arctifrons.

Oblonga, nigra, subnitida, supra glabra ; clypeo mediocriter elongate, antice valde flexuoso-angustato, apice
reflexo, breviter sinuate- truncate, c? acutius, $ obtusius bidentato, toto capite dense punctato, palpis
antennisque testaceo-rufls ; thorace (elytris baud angustiore) transverse, medio late dilatato, discrete baud
grosse punctato, angulis anticis rectis, posticis obtusis sed distinctis ; elytris grossing subdisperse punc-
tatis, costis vix punctulatis ; pygidio et ventre grosse sparsim punctatis ; unguibus fissis, dente inferiore
pauUo breviore.

Long. 6-7 J millim.

Hab. Mexico, Durango city {Hbge). A good series of examples.

18. Diplotaxis — ?

Hah. Mexico [Salle, ex coll. Sturm).

An example of this apparently very distinct species, allied to the preceding, but of
metallic colours, is contained in the Salle collection; it is labelled B. ceneipennis,
Sturm, MS.

19. Diplotaxis ?

Hah. Mexico, Playa Vicente [Salle).

One specimen of a species also apparently distinct.

20. Diplotaxis (?) ?

Hab. Pai^ama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

A single example, apparently female, of a species perhaps belonging to this genus,
but possibly a Liogenys.

YY2

164 ' LAMELLICOENIA.

21. Diplotaxis metallescens.

Oblongo-ovata, glabra, nigro-aenea, subnitida ; antennis, palpis et tarsis rufo-testaceis ; eapite crebre rotundato-
punctato, sutura frontali leevi ; clypeo breviter trapezoidali, angulis rotundatis, margine antico leviter
sinuato ; tborace discrete sed sat dense profuBde punctato, post medium dilatato, angulis posticis obtusis-
simis ; elytris sat dense profunde punctatis, costis baud elevatis valde serie-punctatis, interstitio suturali
multipunctulato ; pygidio convexo, setoso, grossissime alveolato-punctato, abdomine grosse sat dense (medio
Iseviore) punctato ; unguibus normalibus.

Long. 8-9 millim.

Hah. Mexico, Tepanistlahuaca (Salle).
Three examples.

22. Diplotaxis ?

Mab. Mexico, Parada (Salle).

A single example of a species apparently allied to the preceding.

23. Diplotaxis popino.

Diplotaxis popino, Casey, Contrib. to the Descriptive and Systematic Coleopterology of N. America^
part ii. p. 179 \

Hah. NoETH x^MEEiCA, Arizona i. — Mexico, Northern Sonora (Morrison).

III. Clypeus brevis, rotundatus.

24. Diplotaxis simplex.

Diplotaxys simplex, Blanch. Cat. Coll. Ent. i. p. 172 \

Oblongo-ovata, supra glabra, nitida, piceo-nigra vix metallescens, vel plus minusve rufo-testacea ; clypeo brevi,
late rotundato, apice perparum sinuato, supra transversim convexo, creberrime punctato, satura frontali
valde impressa, medio angulata ibique fronte (sparsius et subtilius punctata) concava ; tborace disperse
baud grosse punctato, medio subangulatim dilatato, angulis posticis obtusis sed distinctis ; elytris sat
disperse punctatis, costis baud elevatis sparse minute seriato-punctatis ; pygidio grossissime subalveolatim
punctato, rigide piloso ; subtus lateribus grosse punctato ; unguibus profunde fissis, dente inferiore latiore
valde curvato ; tibiis anticis 3-dentatis.

Long. 7-8 millim.

Hab. Mexico \ Puebla, Orizaba (Salle), Jalapa, Vera Cruz (Hoge).

This insect bears the name of D. simplex, Blanch., in the Salle collection, and is
probably that species, though the description is too vague to determine the point
satisfactorily. As some help towards identifying the insect, which is probably common
in collections, I have redescribed it

25. Diplotaxis hebes.

D. simplici simillima, sed differt unguibus dente inferiore submediano et brevi apice subtruncato. Oblonga,
convexa ; clypeo baud transverse convexo, piano, brevi, rotundato, apice fortius sinuato ; eapite toto fere
sequaliter discrete sat fortiter punctato ; tborace brevi, prope angulos posticos distinctos subrectos
impresso, paullo grossius quam in D. simplici punctato ; elytris profundius punctatis, costis parum
distincte punctulatis : pygidio grosse alveolato-punctato, ventre medio fere laevi.

Long. 7 1 millim.

DIPLOTAXIS. 165

Hab. Mexico, Ciudad in Durango {Forrer), Toluca (Salle).

Three examples. The one from the Salle collection is labelled B. simplex, Blanch.,
but is certainly different specifically from other three examples in the same collection
bearing that name, and agreeing less with Blanchard's description, such as it is.

26. Diplotaxis ?

Hab. Mexico, Jalapa {Edge).

A single example of a species indeterminable.

27. Diplotaxis magna.

Oblonga, robusta, nigra, glabra, subnitida, palpis antennisque rufo-testaceis ; capite lato obtuso, dense subgrosse
partim confluenter rotundato-punctato, clypeo fere rotnndato, margine antico leviter sinuato et reflexo,
fronte medio depressa ; thorace valde transverse, densissime confluenter punctato, medio dilatato, postice
sinuato angulisque posticis exstantibus acutis, antice subrecto, angulis anticis acutis ; elytris costis valde
distinctis hand elevatis, parum punctnlatis, interstitiis latis confuse multipunctatis ; pygidio grossissime
setifero-punctato ; corpore subtus sparsim subtilius punctato ; unguibus longe infra apicem robuste dentatis.
Labrum arcuatim late excavatum.

Long. 14-15 millira.

Hah. Mexico, Ciudad in Durango 8100 feet (Forrer, Hoge). Four examples.

28. Diplotaxis boops.

Magna, oblonga, nigra, nitida, glabra, tarsis, antennis palpisque rufo-testaceis ; capite magno, rotundato, sparsim
punctato ; clypeo brevi subrotundato, apice obtusissime truncate, margine parum reflexo ; thorace valde
transverse, medio baud dilatato, lateribus leviter rotundatis, antice et postice recte pauUo angustato, angulis
omnibus subrectis, supra subtiliter disperse punctato ; elytris costis valde distinctis baud elevatis, parum
punctnlatis, interstitiis latis confuse multipunctatis ; pygidio grossissime setifero-punctato ; corpore subtus
sparsim subtilius pilifero-punctato ; unguibus longe infra apicem robuste dentatis. Labrum arcuatim
late excavatum.

Long. 14 millim.

Hab. Mexico, Pinos Altos in Chihuahua {Buchan-Hepburn), Ciudad in Durango
(Hoge).

Two examples. Evidently closely allied to B. magna, notwithstanding the very
different outline and sculpture of the thorax.

29. Diplotaxis ?

Hab. Mexico, Northern Sonora (Morrison).

A testaceous-red species, with remarkably explanated hind angles of the thorax,
the angles subacute at the apex. It is found also in Arizona, and has probably been
described by American entomologists.

IV. Clypeus brevis, obtusus, margine antico valde sinuato.

30. Diplotaxis flavisetis. (Tab. IX. fig. 26.)

Oblonga, postice dilatata, fulvo-castanea, undique setis recumbentibus flavis obsita ; clypeo lato et brevi, lateribua

166 LAMELLICOENIA.

margineque antico reflexo valde sinuatis ; fronte fere plana declivi, dense rugoso-punctata ; thorace post
medium rotundato-dilatato, angulis anticis acutis, posticis rotundatis, supra dense punctate ; scutello toto
punctate ; elytris dense punctatis, costis et interstitiis sequalibus et sequaliter convexis ; pygidio densissime
punctate et longe erecte pilose ; unguibus fissis dentibusque subsequalibus ; pedibus pr^cipue tarsis sat
dense flavo-pilosis.
Long. 8 millim.

Hah. Mexico, Tapachula in Chiapas {H'oge).

Two examples; judging from the rather dense hairy clothing of the anterior tarsi,
both males.

31. Diplotaxis contracta.

Subovata, glabra, testaceo-fulva, antennis palpisque pallidioribus ; clypeo brevi et lato, antice sinuate, angulis
rotundatis, supra transversim convexo, sutura frontali lata depressa, fronte biarcuatim elevata, scabroso-
punetata ; thorace antice valde subrecte angustato, angulis anticis porrectis, lateribus prope basin breviter
profunde sinuatis, angulis posticis acutis, supra ineequali grossissime punctato ; elytris subconfluenter punc-
tatis, costis elevatis subtilissime seriepunctatis ; pygidio grossissime alveolato-punctato, setoso ; ventris
segmentis 2°-4" convexis, insequalibus, plus minusve rugoso-punctatis, 6° parvo ; unguibus normalibus.

Long. 8 millim.

Ildb. Mexico, Ciudad in Durango {Forrer).

An insect of singular aspect, owing to the anteriorly narrowed thorax. In other
respects the species is normal, except that the labrum is more deeply eraarginated ;
the emargination (as in other Diplotawes) is broadly arcuated and obliquely upwards
and backwards, but instead of leaving as usual a broad upper rim entire, nearly the
whole of the centre of the organ is cut away.

Two examples.

32. Diplotaxis (?) ?

Eah. Guatemala, Cerro Zunil (Champion).

A single example of a peculiar species, apparently belonging to this genus.

33. Diplotaxis rugosipennis.

Diplotaxys rugosipennis, Blanch. Cat. Coll. Ent. i. p. 172 \
Hab. Mexico ^.

I have seen no specimen answering to Blanchard's description of this species.

Subfam. RHIZOTROGIN^.

CHLiENOBIA.

Chldenobitty Blanchard, Cat. Coll. Ent. i. p. 116 (1850) ; Lacordaire, Gen. Col. iii. p. 265 (1856).

Lacordaire placed this genus in the " Subtribu Macrodactylides " ; but it differs from
that group in all the characters which distinguish the "Macrodactylides" from the

CHL^NOBIA. 167

" Rhizotrogides." It has, namely, long and sessile anterior coxse, much longer than
the breadth of the free lateral space of the prosternum ; and equal ventral segments
2-5, with their sutures in the middle soldered. The general form and minor characters
ot the species also are those of Lachnosterna and Phytalus^ and not of the " Macro-
dactylinse." The males are distinguishable from the same sex of Phytalus only by the
tarsi being thickened, and densely hairy beneath. The mandibles are exserted, curving
over the edge of the ligular part of the mentum ; the tarsal claws are dentate at the
base and subequally and strongly bifid at the apex ; the spurs of the hind tibise in the
males are both freely articulated.

The only species hitherto described is Brazilian,

1. ChlaBnobia SBgrota. (Tab. x. fig. i.)

Elongata, angusta ( 5 postice paullo crassiore), flavo-testacea (capite thoraceque interdum rufis), supra glabra,
discrete punctulata ; elytris ioterstitio suturali (prope basin et apicem excepto) convexo, costulis duabus
angustis parum convexis (interdum obsoletis), brevibus ; clypeo lato et brevi, concavo, utrinque late
rotundato, antice medio sinuato ; thoracis angulis posticis obtusis. Antennae 9-articulat8e,

c? . Pygidium magnum, convexum, toto longe erecte pilosum, discrete punctatum, margine apicali refleso.
Metasternum femoraque subtus dense ilavo-pilosa. Ventris segmenta medio plana punetato-pilosa ;
6™ magnum, medio canaliculatum. Tarsi valde elongati, crasse filiformes, subtus dense pilosi.

$ . Pygidium usque prope apicem gradatim declive ibique bituberosum et subito depressum, concavum, breviter
sparsim pilosum. Corpus subtus sparsius et brevius pilosum, crebrius punctatum. Ventris segmentum
6™ convexum, integrum. Tarsi breviores et tenuiores, subtus breviter pilosi.

Long. 13-16 millim.

Hah. Mexico, Cordova, Tomatlan [Salle), Jalapa (Edge).
An example from Jalapa is figured.

2. Chlsenobia scabripyga.

C. cegrotm similis : differt thorace angulis posticis rectis subacutis pygidioque iS $ grosse confluenter punctato,

apice solum piloso. Antennae lO-articulatae.
(S . Pygidium magnum, convexum, margine apicali minus alte reflexo. Ventris segmenta medio transverse

convexa, rigidius setosa.
5 , Pygidium apice fossa magna rotunda et profunda laevi.
Long. 14-17 millim.

Eab. Mexico, Juquila (Salle).

3. ChlsBnobia latipes.

Praecedentibus similis, sed differt utroque sexu tarsis omnibus late dilatatis, plantis densissime pilosis ; clypeo

paullo ampliore et profundius concavo, antice medio sinuato ; thorace elytrisque paullo grossius et densius

punctatis, illo angulis basalibus rectis. Antennae 10-articulatae.
(^ . Pygidium sat dense punctatum, mediocriter convexum, medio sulcatum, apice reflexo et piloso. Ventris

segmenta medio plana, 2°-4"^ breviter, 5" et 6° longe pilosa. Tibice posticae calcari interiore lato, apice late-

r alitor excise.
2 . Pygidium medio tuberculis magnis obliquis duobus ; medio late sulcatum, apice subtruncatum, margine

reflexo.
Long. 15 millim.

Eab. Mexico, Teapa (*S'<zZ/e).

168 LAMELLICOENIA.

■f ■

This species is labelled Liogenys angustata^ Chevr. (MS.), in the Salle collection ; the
specific name I cannot adopt, as it would be very inappropriate in the genus to which
the insect really belongs. The tarsi are shorter and the joints much broader than in
C. cegrota, joints 2-4 being more than half as broad as long. There is no rudiment of
a third (upper) tooth on the anterior tibiae in the male, which is perceptible in the
other species, and only a slight indication of it in the female.

4. Chlaenobia tumulosa.

C. cBgrotce similis et affinissima : differt thorace angulis posticis exstautibus acutis ; pj^gidio utroque sexn

mediocriter discrete punctate, apice solum piloso. Antennge 10-articulat«.
cJ. Tarsi lineares, sed articulis quam in C. cegrota pauUo latiores. Venter medio planatus subconcavus,

segmentis 2*'-4™ dense brevier pilosis, 5° et 6° scopiferis.
$ . Pygidium post medium oblique valide bituberosum, apice profundissime conoavo, margine apicali media

sinuato ; lamina ventrali segmentum ventrale 7™ simulante.
Long, 14-17 millim.

Hah. Beitish Honduras, R. Sarstoon {Blancaneam) ; Guatemala {Salle), near the
city, Duenas, Capetillo (Champion).

The anterior tibiae in the male have a slight indication of a third tooth, and in the
female are more distinctly tridentate,

A single example (female) from Guatemala city has simply an irregular cavity on
the pygidium. It is apparently deformed.

5. Chlaenobia bicallosa.

C. tumulosce proxime affinis : differt thorace fortius punctate, magis rotundato et postice magis angustato,

angulis posticis acutis sed minus exstantibus.
5 . Pj^gidium medio fere usque ad basin sulcatum, apice baud excavatum, tuberibus medianis conicis minus

obliquis, margine apicali rotundato, reflexo ; lamina ventrali nulla. Antennae 10-articulatje.
Long. 15 millim.

Eab. Mexico, Tomatlan, Tuxtla (Salle).

Three female examples only. The very difierent structure of tlie pygidium, which
has no ventral horny plate simulating a seventh ventral segment, supported as this
character is by the somewhat smaller, more rounded, and more coarsely punctured
thorax, justifies the separation of this insect from C. tumulosa.

The striking modifications in the secondary sexual characters, in closely-allied forms
of this genus, forms which other circumstances indicate to be only local varieties, are
of great physiological significance.

6. Chlsenobia sequata.

Prsecedentibus simillima, paullo minor ; clypeo minus ampliato, lateribus rotundato-convergentibus ; thorace

disperse punctato, angulis posticis acutis.
d • Pygidium convexum, sparse punctatum, margine apicali rotundato-reflexo ; ventris segmenta 5™ et 6™ medio

longe fasciculatim, 2°-5'" brevius, pilosa ; tarsi crasse filiformes, parum dilatati, subtus dense pilosi ; tibiarum

CHL^NOBIA. — LISTEOCHELUS. 169

posticanim calcaribus dissimilibus, interiore recto acuto, exteriore curvato latiore, apice oblique truncate.

Antennae lO-articulatse ; clava c? elongata.
2 • Pygidium nee tuberculatum nee excavatum, apice sublobatum, marginibus sinuatis ibique supra impune-

tatum. Antennarum clava elongata, gracilis, articulis S"-?" conjunctis longiore.
Long. 12-14 niillim.

Hab. NiCAEAGUA, Chontales {Janson) ; Costa Rica ( Van Patten), Volcan de Irazu
(Rogers).

Four examples.

CHIRODINES.

Gen. Chlcenohice at Phytalo aiBnis. S • Corpus elongato-angustatum, calvum. Caput sicut in Chlcenohia ; oeuli
magni. Labrum profunde arcuato-excavatum, longe setosum. Antennae 10-articulat». Thorax toto
marginatus, postice sinuatim leviter angustatus, angulis posticis acutis. Pedes elongati ; tarsi robuste
filiformes, subtus sparsim breviter setosi ; unguibus 4 anteriorum simplicibus basi tantum late dentatis,
2 posteriorum profundissime fissis, dentibus gracilibus subaequalibus.

The simple claws of the four anterior tarsi distinguish this genus from both ChloB-
nohia and Phytalus ; the absence of dense pubescence from the soles of the tarsi (in the
male) further distinguishes it from Chlcenohia, to which it is most nearly allied by the
form of the head and thorax and the long and stout filiform tarsi. The spurs of the
hind tibiae are both freely articulated, both long and slender, but the lower shorter
than the upper.

1. CMrodines zunilensis. (Tab. X. fig. 2, ^ .)

Elongatus, subcylindricus, glaber, sordide flavo-testaceus, supra sat dense aequaliter punctulatus ; clypeo late
rotundato, margine anteriore reflexo, medio sinuato.

c? . Pygidium, praecipue apice, convexum, sparsissime punctatum, apice sulcato-marginatum. Yenter glaber,
lateribus punctulatis ; segmentum 5™ medio transverse sulcatum ; 6™ magnum, laeve, medio depressum at
longitudinaliter sulcatum. Tarsi anteriores valde elongati, articulis leviter incrassatis.

Long. 15 millim.

Hab. Guatemala, Cerro Zunil 4000 to 5000 feet (Champion).

Two male examples.

LISTEOCHELUS.

Listrochelus, Blanchard, Cat. Coll. Ent, i. p. 141 (1850) ; Lacordaire, Gen. Coll. iii. p. 28 (1856) ;
Leconte, Journ. Acad. Nat. Sc. Phil. 2nd ser. iii. p. 262 (1856) ; Horn, Trans. Am. Ent. Soc.
vii. p. 138 (1878).

A genus characteristic of the insect fauna of the South-western States of America
and the northern part of Mexico. Fourteen species have been described, nearly all
of which are from the United States.

1. Listrochelus laportsBi.

Listrochelus laportm, Blanch. Cat. Coll. Ent. i. p. 141 '.

Hob. Mexico 1, Jalapa, Las Vigas (iTo^^).
BIOL, cente.-amee., Coleopt., Vol. 11. Pt. 2, January 1888. ZZ

170 LAMELLICOENIA.

Two male examples from Jalapa agree with Blanchard's description, especially in the
margin of the clypeus being remarkably narrow and slightly reflexed, " clypeo angus-
tissime reliexo ;" the outline of the clypeus is nearly semicircular. In colour they are
reddish or brownish-castaneous, the elytra dull, the thorax shining. The forehead is
convex and roughly sculptured, not plane as in L. clavatus, L. scuticeps, and allied species,
and the vertex has a very obtuse elevation from eye to eye, probably the *' capite . . . vix
carinato " of Blanchard ; the outer hind angles of the posterior coxae are very much
produced, almost falcate. The sides of the body are fringed with remarkably long
outstanding tawny hairs, and the claws are all uniformly pectinated. Two females from
Las Vigas are darker in colour. The sexual characters are as follows : —

(S . Pygidium, praecipne postice, valde convexum, politum, disperse punctatum, apice subtruncato-rotundatum,
fortiter marginatum. Yenter lateraliter pruinosus, medio politus, depressus ; segmenta 5™-6™ subtiliter
canaliculata, 2'"-6°' medio breviter setosa. Antennarum clava articulis l^-T"" sequalis. Ungues omnes
denticulati.

5 . Pygidium elongatum, planum, apice sulcato-marginatum, breviter truncatum, parce punctulatum. Venter
medio sparsim setosus ; segmento 6° sat magno, piano, punctate, apice truncato. Ungues dente mediano,
deinde usque ad apicem denticulati.

2. Listrochelus cavatus.

L. lajportcei affinis ; sed minor clypeoque latiore supra cavato, marginibus alte reflexis, Brevius ovatus, rufo-
castaneus vel testaceus, supra {S 2) nitidus, glaber, passim mediocriter punctatus, lateribus fimbriatis ;
tborace medio dilatato, angulis posticis valde obtusis ; elytris costulis parum elevatis. Antennae
10-articulatge.

J. Pygidium valde convexum, gibboaum, disperse punctulatum, glabrum, apice breviter truncatum, sub-biden-
tatum. Pectus dense cinereo-fulvo villosum. Venter lateraliter pruinosus, medio politus, Isevis, depressus,
medio postice profunde canaliculatus, segmento 6° brevissimo. Ungues omnes regulariter pectinati. Anten-
narum clava elongata, articulis 2°-7'" conjunctis aequali,

2 . Pygidium fere planum, politum, sparsissime punctulatum, margine explanato apicali bidentatum. Pectus
parce hirsutum. Venter segmento 5" apice transverse exarato-sulcato ; 6" magno, convexo, grosse punctate,
apice fovea lata depressa et margine apicali profunde sinuate. Ungues omnes prope apicem dentati, deinde
usque ad basin pectinati.

Long. 11-12 millim.

Hah. Mexico, San Antonio de Arriba (Salle), Mexico city (Flohr).

A single male specimen is in the Salle collection, and we have received a pair from
Mr. Flohr.

Var. L. durangoensis. Differt colore castaneo-fusco, clypeo antice pauUo angustato lateribusque subrectis nee
late rotundatis. (Tab. X. fig, 3, S •)

Bab. Mexico, Ciudad and Ventanas in Durango, Real del Monte in Hidalgo (Hoge).
An example of the variety from Ventanas is figured.

3. Listrochelus micros. (Tab. X. fig. 4, d .)

L. cavato affinis : multo minor, sordide testaceo-fulvus, capite thoraceque interdum castaneo-fuscis, glaber, sub-
nitidus; clypeo transverse, obtuse rotundato, margine integerrimo valde elevato, cam fronte discrete
punctata, froute plana, declivi ; tborace medio valde dilatato, margine confertim crenulato, supra disperse
punctulato ; elytris punctulato-rugulosis. Antennae 9-articulat8e ; articulis 3° et 4° elongatis, aequalibus.

LISTEOCHELUS. 171

6 ■ Pygidium gibbosum, politum, glabrum, dispersissime punctulatum. Venter medio concavus et canaliculatus,
parcissime setosus ; segmento 6" brevi, fere laevi. Ungues elongati, omnes (prope apicem excepto) breviter
pectinati. Pectus dense fulvo-villosum, Antennarum clava elongata, articulis 2'*-6'" conjunetis sequalis.

2 • Pygidium fere planum, politum, glabrum, dispersissime punctulatum. Yenter convexus, Isevis ; segmento 6"
apice medio profunde inciso. Ungues medio breviter dentati, deinde usque ad basin paull dilatati et
minute denticulati.

$ . Variat unguibus pedum 4 anteriorum medio dentatis, 2 posteriorum edentatis et baud conspicue denticulatis ;

vel omnibus edentatis.
Long. 8-10 miUim.

Hob. Mexico, Toluca {Edge).
Numerous examples.

4. Listrochelus prsesidii. (Tab. X. fig. 5, c? .)

Elongatus, fere cylindricus, castaneus, thorace Isetius rufo-castaneo, polito, elytris fulvo-testaceis, palpis, antennis
pedibusque fulvo-ruJ[is, nitidis ; clypeo transverso, antiee obtusissime rotundato, parum sinuato, mediocriter
reflexo, dense discrete punctato, sutura frontali acute impressa flexuosa, fronte sparsim punctata, vertice
obtuso ; thorace medio valde dilatato, antiee et postice angustato, angulis anticis oblique truncatis, posticis
obtusis, supra disperse punctato ; elytris parum dense punctulatis, interstitio suturali vix elevato, sub-
punctulato.

(S . Pygidium gibbosum, medio dense punctulatum et fulvo-setiferum, apice politum, sparsissime punctulatum.
Yenter lateraliter argenteo-pruinosus, medio nitidus, depressus, aspere setifero-granulatus ; segmentum 5"
postice profunde sinuatum, 6" medio elongatum, concavum, granulatum, et breviter canaliculatum. Pectus
cinereo-fulvo villosum. Ungues omnes subtus sequaliter bipectinati.

5 . Pygidium basi planum, prope medium subito convexum ibique profundissime sulcatum. Yenter medio
glaber ; segmentum 5"" apice integrum, 6"" convexum, punctatum. Ungues supra medium valde dentati,
deinde usque ad basin serrulati.

Long. 18 millim.

Hah. Mexico, Presidio (Forrer).

Two male and two female examples. Apparently closely allied to L. dis'parilis,
Horn, from Arizona and New Mexico ; but differing sufficiently in the sculpture and
clothing of the pygidium, form of the ventral segments, and general colour. The con-
vexity of the lower part of the pygidium in the female may be described, in other
words, as two elongate polished callosities separated at the median line by a deep and
straight furrow.

5. Listrochelus scuticeps.

Anguste oblongo-ovatus, fulvo-testaceus, thorace femoribusque rufo-testaceis, nitidis, elytris leviter pruinosis,
subopacis ; fronte et clypeo (piano declivi) dense subalveolato-punctatis, occipite transversim sulcato, laevi,
clypeo longiusculo semiovato, antiee obtuso, margine reflexo, antiee • paullo sinuato; thorace pauUo post
medium valde dilatato, angulis obtusis, sat dense sed discrete punctato, linea dorsali Isevi ; elytris ruguloso-
coriaceis baud distincte punctulatis.

(S . Pygidium prope apicem gibbosum, nitidum, sat distanter piloso-punctatum. Yenter medio concavus, politus,
fere Isevis ; segmento 5" apice canaliculate, 6" subconvexo, grosse punctato, medio acute canaliculato.
Ungues elongati, apice excepto pectinati. Antennarum clava elongata, gracilis, articulis 2''-7'" conjunetis

parum brevior.
2 . Pygidium fere planum, apice rotundatum, disperse piloso-punctatum. Yenter medio fere Isevis ; segmento 6**

ZZ2

172 ' LAMELLICOENIA.

piano, margine apicali integro. Ungues ante medium dentati, deinde usque ad basin denticulati. Variat
eljtris valde pruinosis pygidioque glabro. . •

Long. 12-13 millim.

Hah. Mexico, Villa Lerdo in Durango {Hoge).

Var. major $ . 17 millim. Capite tboraceque castaneo-fuscis. ,

Hah. Mexico, Tapachula in Chiapas [Hoge). One example.

6. Listrochelus parilis.

L. scuticipiti proxime affinis : supra castaneus (thorace obscuriore et nitidissimo), elytris griseo-pruinosis, sub-
opacis, antennis pedibusque testaceo-rufis, pectore aureo-fulvo villoso ; fronte sicut in L. scuticipiti plana
declivi, oceipiteque transversim exarato-sulcato, laevi, sed clypeo ampliore semicirculari, margine alte reflexo,
integro ; thorace subtiliter discrete punctulato (interdum in c? densius), vitta mediana laevi ; elytris punc-
tulatis et ereete hirsutis.

S . Pygidium mediocriter et praecipue prope basin convexum, disperse punctulatum, glabrum, margine apicali
subsinuatim et late truncatum. Venter medio segmentis 4" et 5° valde depressis, 2° et 3° medio pilifero-
punctatis, 5° et 6° glabris, canaliculatis. Ungues subtilissime denticulati, paullo post medium brevissime
dentati, apice subhamati. Antennarum elava articulis 2''-7™ conjunetis longior.
2 . Pygidium sicut in S . Venter convexus ; segmento 5° dimidio apicali subito depresso, fere laevi ; segmento
6° convexo, setifero, punctate, apice integro. Antennarum clava sat elongata, articulis 3°-7"' conjunetis fere
sequalis. Ungues post medium dentati, deinde ad basin denticulati.

Long. 13-14 millim.

Hah. Mexico, Refugio and Ciudad in Durango (Hoge).

The similarity between the two sexes in nearly all the usual differentiating characters
distinguishes this species in a singular manner from its congeners.

7. Listrochelus culminatus.

Oblongus, subovatus, castaneo-rufus, glaber ; clypeo semicirculari, margine alte reflexo, antice medio depresso vix
sinuate ; fronte brevi, subverticali, postice culmine alto dense tuberculato delimitate, confertissime grosse
punctate et pilose ; occipite late transversim depresso, medio polito, lateribus punctatis ; thorace post medium
rotundato-dilatato, angulis anticis rotundatis, posticis obtusis, supra sat dense punctulato, spatio discoidali
laevi ; elytris discrete punctulatis, costis suturali et discoidali (obliqua) sat elevatis.

2 . Pygidium elongatum, recte angustatum, apice truncatum, planum vel medio paullo depressum, basi sparsissime
apice dense pilifero-punctatis. Venter medio Bubglaber, segmento 6" setifero-punctato, apice integro.
Ungues dente valido baud procul ab apice, deinde usque ad basin dilatati et denticulati.

Long. 16 millim.

Hah. Mexico, Matamoros Izucar in Puebla, Jalapa [Hoge).
Only two examples, both females, and exactly similar.

8. Listrochelus maximus. (Tab. X. fig. 6, 6 .)

Magnus, robustus, fulvo-testaceus (pedibus rufioribus), supra sat dense punctulatus et recumbente breviter griseo
pilosus, apud frontem, thoracem elytrorumque basin, pilis longioribus erectis intermixtis ; capite grosse
confluenter punctate, clypeo brevi, obtuse rotundato, margine alte reflexo, integro ; thorace paullo post
medium dilatato, angulis anticis aeutis, margine crenato.

(S . Pygidium planum, margine apicali alte acute reflexum, dense punctulatum, pilosum, opacum. Venter medio
longitudinaliter concavus, punctulato-pubescens, opacus ; segmento 5° medio densissime punctulato, sub-
nitido, margine apicali valde flexuoso medio producto, 6° medio transversim concavo, margine anteriore

LISTEOCHELUS. 173

medio elevato et late triangulariter dilatato. Calcaria postica libera, inferiore spatulato superiore multo
longiore et gracilior. Antennarum clava valde elongata, cseteris articulis conjunctis multo longior ; articulis
4°-7" intus pauUo productis, acutis.
Long. 21 millim.

Hab. Mexico, Juquila (Salle).
Two males only, exactly similar.

9. Listrochelus scoparius.

Listrochelus scoparius, Lee. Journ. Aead. Phil. ser. 2, iii. p. 264"'; Horn, Trans, Am. Ent. Soc. vii.
p. 142 2.

Hah. NoETH Ameeica, Arizona 2. — Mexico, Sonora i.

10. Listrochelus mucoreus.

Listrochelus mucoreus, Lee. Journ. Acad. Phil. ser. 2, iii. p. 263 ' ; Horn, Trans. Am. Ent. Soc. vii.
p. 144 ^

Bah. NoETH Ameeica, California i, Texas, Arizona &c.2. — Mexico, Northern Sonora
(Morrison).

One female example from the late Mr. Morrison, bearirg the name of this species,
which agrees moderately well with Dr. Horn's description.

11. Listrochelus ?

Hah. Mexico, Cholula in Puebla [Eoge).

A single female example, apparently of a species different from any of the foregoing.

12. Listrochelus ohlongulus. (Tab. X. fig. 7, d .)

Parvus, elongato-oblongus, nitidus, niger vel (immaturus ?) castaneus, subtus cum femoribus testaceo-rufus ;
dypeo elongato semiovato vel obtuse quadrato concavo, margiuibus alte elevatis, integris, fronte planato-
declivi, occipite baud elevato, polito ; toto capite dense punctato, glabro ; tborace sat elongato, medio dilatato,
margine lateral! crenato, angulis anticis rectis, posticis obtusis, supra discrete punctato, spatio dorsali laevi ;
elytris sat disperse punctulatis, subrugulosis, costis Isevibus. Pygidium sat elongatum, parum convexum,
disperse grosse punctatum, parce setosum. Coxarum posticarum angulum exterior baud productum.
Antennge 9-articulat8e.

tS . Venter fere Isevis, segmento 6" medio transverse planato. Ungues omnes edentati minute denticulati.

2 . Venter fere la3vis, segmento 6*' convexo. Ungues omnes dente parvo acuto ante medium, post dentem

latiores et subtiliter denticulati.
Long. 8-10 millim.

Hah. Mexico, Iguala in Guerrero, Chilpancingo (Hoge). A good series of examples.

This small and narrow insect has not at all the appearance of a ' Rhizotrogide ' In
general form it resembles much more the species of Hadrocerus (' sensu ' Burmeister)
of the Clavipalpus group. The labrum is narrowly and deeply excavated, the apical
joint of the maxillary palpi slender, and the mandibles concealed.

174 LAMELLICOENIA.

PHYTALUS.

Phytalus, Erichson, Naturg. Ins. Deutschl. iii. p. 658 (1848) ; Burmeister, Handb. der Ent. iv. 2,
p. 345 (1855) ; Lacordaire, Gen. Col. iii. p. 287 (1856). .

A genus distinguished from the following (Lachnosterna) only by the mode of denti-
tion of the tarsal claws, the usual inner tooth, which in Lachnosterna varies in position
from near the base to near the apex, being here apical, so that the claws are properly
termed fissile or cleft. The examination of a large series of species has proved the
correctness of Lacordaire's opinion that this character would eventually prove untenable,
for I find that every gradation exists between a typical Phytalus with cleft claws, and
the section of Lachnosterna in which the tooth is placed near the base. I retain the
genus, however, as a convenient group, in the belief that a division of the great genus
Lachnosterna into numerous genera will soon become indispensable, and that Phytalus
will probably then be retained under some restricted definition.

I have not here restricted the genus to those species in which the inner or lower tooth
of the claw is equal in length and subparallel to the apical portion, but have found it
necessary to include in it a numerous group in which this tooth is more or less short
but nearly parallel, and others (P. pubicollis, Blanch.) in which it is considerably deflexed
and divergent though always nearer the apex than in Lachnosterna. Even thus
modified, the fissile character of the claws applies strictly to the males only ; the females
in some species (e. g. P. ohsoletus) having the lower tooth rather widely divergent, thus
approaching the form presented in Section IV. of Lachnosterna. In facies and in nearly
all points of structure on which genera are founded in the ' Rhizotroginee ' there is no
agreement among the species. For example, the number of antennal joints varies from
10 to 8, the intermediate joints varying in relative length, and the leaflets of the club
vary in number in the males from 3 to 5 ; the lower spur of the hind tibiae, generally
articulated, is in some species connate ; the mandibles are visible or not in repose ; and
the clypeus is of the most diverse formation. But it must be added that no better
result follows in this instable series of forms when any other leading character is taken
as a basis for grouping.

A score of species oi Phytalus have been described. Like Lachnosterna it is found
in America and in South-eastern Asia ; but unlike that genus it appears to be scarcely
represented in temperate North America, where Lachnosterna abounds in species.
The genus is not mentioned by Leconte in his important work on the Melolonthidae
of the United States published in 1856 ; but I have seen specimens of a species,
apparently undescribed, from Arizona.

PHYTALUS. 175

I. Antennal joints 3-7 short.

a. Lower tooth of the claws not much shorter than the upper., at most a little deflexed in
the male (sometimes much more so in the female) ; both spurs of the hind tihim^free.

1. Phytalus obsoletus.

Phytalus obsoletus, Blanch. Cat. Coll. Ent. i. p. 131 ^ ; Burmeister, Haadb. der Ent. iv. 2^ p. 319 ^.
Var. minor. Phytalus leevigatus, Blanch. 1. c. p. 131 ^.

Hah. Mexico 12^, Orizaba, Guanajuato, Puebla, Juquila, Chiapas (Salle), Jalapa,
Oaxaca, Las Vigas (Hbge) ; Guatemala (Salle), Cerro Zunil, Las Mercedes, Volcan de
Atitlan, Dueiias, Capetillo, Guatemala city, Purula, Panzos (Champion) ; Nicaragua,
Chontales (Belt, Janson).

There are many examples in the Salle collection of both of Blanchard's species, appa-
rently correctly named, and after along study of a numerous series of similar individuals
from various localities I fail to discover any constant character whereby they may be
distinguished. The males of both agree in the highly peculiar form and clothing of
the ventral segments, the description of which by Burmeister may be supplemented, as
follows : —

J , Venter medio longitudinaliter concavus, densissime fulvo-pilosus ; segmento 5° postice sublobato-producto,
6° medio contracto, Pygidium convexum, sparse punctatum ; margine apicali reflexo, fimbriato.

In the female the pygidium is very slightly convex and unituberculated near the apex ;
the tubercle varies in size and a little in its distance from the apical margin, the largest
individuals (labelled P. obsoletus in the Salle collection) having it furthest removed
from the margin and more erect.

In both sexes the spurs of the hind tibise are freely articulated, long, and pointed.
The tarsal claws differ considerably according to sex. In both male and female the
base of each claw is very little and very gradually dilated, not dentate ; in the male the
apex is cleft, with the lower tooth broader than the upper ; in the female the claw
cannot be said to be cleft, but is furcate, the lower and broader tooth being removed
nearer to the middle of the claw. In length the species varies from 14 to 21 millim.

P. obsoletus bears a very close resemblance to Lacknosterna testaceipennis.

2. Phytalus punctuliceps.

p. ohsoleto similis ; flavo-testaceua, thorace vix rufiore verticeque nigricanti, glaber, nitidus ; diifert capita, thorace
et BCiitello regulariter sat dense et eleganter punetulatis ; clypeo semicirculari, perparum reflexo, antice
medio sinuate, sutnra acuta flexuosa ; tborace transversim quadrato, postice baud angustato nee medio
dilatato, ante medium rotundato-angustato, angulis posticis rectis subacutis, margine postico bisinuato ;
elytris pauUulum grossius subrugulose punetulatis, pectore mediocriter flavo-hirsuto. Ungues omnes S $
basi rotundato-dilatati, apice profunde flssi, dente inferiore pauUo grossiore et breviore ; calcaria postica
(5 $ elongata, gracili, libera.
S . Pygidium convexum, glabrum, disperse punctatum, margine apicali incrassato et subtus horizontaliter pro-

176 LAMELLICOENIA.

longato segmentum ventralem 7™ simulante. Venter medio depressus, glaber, segmentis 2"-6^ sequalibus,

setis elongatis paucis.
2 • Pygidium sicut in J , sed lamina ventrali interdum occulta. Venter politus, segmento 5° apice transverse

exarato-depresso.
Long. 16-18 millim.

Hab. Guatemala, Capetillo (Champion).

Three examples, two of them females, in one of which the pygidium is not closed on
the last ventral segment, leaving a narrow ventral plate visible at its apex.

3. Phytalus mibipennis.

Minor, oblongo-ovatus, castaneo-rufus (vel fulvus thorace rufo), nitidus, elytris ventrisque lateribus leviter
pruinosis, brevissime reeumbenti-setosis (vel nudis), subopacis ; capite lato, dense subgrosse confluenter
punctato, fronte convexa, sutura frontali valde impressa ; clypeo transverse, lateribus baud ampliatis, antice
rotundatis, margine apicali anguste reflexo medioque breviter sinuato ; thorace medio subangulatim dilatato,
supra sat distanter punctulato ; elytris disperse et parum profunde punctulatis, costa mediana elevata.
Variat elytris costula parum elevata submarginali.

cJ . Pygidium fere planum, glabrum, disperse punctatum. Venter medio politus, fere glaber ; segmento 5° fovea
magna granulata, 6° transversim leviter depresso ruguloso. Antennarum clava mediocris ovata. Ungues
basi vix dilatati, apice fissi, dente inferiore pauUo fortiore vix breviore.

Long. 13-15 millim.

Hab. Mexico, Yolos, Oaxaca (Salle).
Four examples, all males.

4. Phytalus ambigenus.

p. nubipenni simillimus, coloribus formaque corporis baud difFert, sed aliis cbaracteribus valde discrepat.
Caput baud magnum, normale, grossius reticulato-punctatum ; clypeo parvo, fere semicirculari, margine alte
reflexo, integro ; sutura frontali parum impressa, l^vi ; fronte thoraceque longe erecte hirsutis ; elytris
fortius punctatis. Variat, sicut P. nubipennis, elytris costula parum elevata submarginali.

c? . Pygidium basi pauUo convexum, apice planatum, disperse setifero-punctatum. Venter longitudinaliter
concavus et canaliculatus, sparsim breviter setosus ; segmenti o" plaga posteriore mediana convexa dense
granulata, margineque postico arcuatim emarginato, 6° magno, medio depresso et longe et dense setoso.
Ungues robustiores, basi magis dilatati, dente inferiore multo latiore pauUo deflexo. Antennarum clava
valde elongata, caeteris articulis conjunctis multo longior,

2 ■ Pygidium sicut in J , sed longior et juxta apicem subtuberculatum. Venter segmento 6° valde convexo.
Ungues furcati, dente inferiore angustiore et acutiore sed magis deflexo.

Long. 13 millim.

Bab. Mexico, Yolos (Salle), Oaxaca (coll. Bates).

Two males and one female. In this species the tarsal claws are almost too divergent
in their apical teeth to warrant its retention in the genus Phytalus.

5. Phytalus (?) pubicoUis.

Phytalus pubicollis, Blanch. Cat. Coll. Ent. i. p. 131 '.
Hab. Mexico (Ghiesbreght i, Salle ex coll. Sturm).

*

The single example in the Salle collection bearing the above name agrees fairly well

PHYTALUS. 177

with Blanchard's description and is a male. This specimen has the clypeus rather
small and nearly semicircular, without the usual sinuation of the front margin. The
secondary sexual characters are as follows : —

c? . Pygidium parum convexum, nitidum, pilosum, irregularifcer annul ato-punctatum. Venter medio late
canaliculatus, nitidus, sparsim setosus, segmento 6° transversim concavo. Tibiarum posticarum calcaria
elongata, libera.

The tarsal claws are, as Blanchard states, short and curved. The lower tooth is very
broad and curved, and the basal stem of the claw is short and broad without the usual
tooth-like dilatation. I leave the species in the present genus with reserve.

It differs little in the form of the claws from Lachnosterna testaceipennis.

6. Phytalus (?) ?

Hah. Mexico, Ventanas in Durango (Edge).

A female example of a species certainly allied to P. puMcolUs, but with the lower
tooth of the claws much curved and deflexed, and consequently not strictly belonging
to the genus.

7. Phytalus cometes. (Tab. X. fig. 8, j .)

Elongato-ovatus, robustus, rufescenti-fuscus, pilis incumbentibus fulvis densissime vestitus, elytris prope
marginem et suturam setifero-porosis ; clypeo transverse, antice late rotnndato medio sinuate, margine
reflexo, supra dense punctato, fronte confluenter punctata, sutura baud perspicua ; thorace elytrisque
dense regulariter punctulatis, illo angulis posticis fere rectis ; pectore, femoribus et coxis fulvo-hirsutis,

c? . Pygidium convexum, alutaceum, apice interdum nitidum, umbilicato-punctulatum, margine apicali acuto,
reflexo. Venter longitudinaliter depressus, breviter pilosus, segmento 5° apice medio late sinuate, 6"
medio transversim concavo. Tibiarum posticarum calcaria elongata, gracilia, libera. Ungues omnes basi
triangulariter dentati, apice profuude sed anguste fissi, dente inferiore latiore sed baud breviore, pauUo
deflexo. Antennarum clava elongata, articulis 2°-7"' conjunctis longior, 7° intus valde producto acuto.

Long. 21-24 millim.

Mab. NiCAEAGUA, Chontales {Belt, Janson) ; Panama, Chiriqui {coll. Bates).

Four examples, all males.

This species is the analogue (in Phytalus) of the L. crenulata group of Lachnosterna
(Leconte's Group XII.) ; the totally different form of clypeus and other characters,
besides the generic difference in the claws, forbid the supposition of a real affinity.

A Chontales specimen is figured.

b. Lower tooth of the claws not much shorter than the upper ; lower spur of

the hind tibiw connate.

8. Phytalus pruinosus.

Phytalus pruinosus, Blanch. Cat. Coll. Ent. i. p. 131 '; Burm. Handb. der Ent. iv. 2, p. 349 ^
Hah, Mexico ^ \ Cordova {Salle), Jalapa {Hoge).

I have seen very few examples of this insect, which is liable to be confounded with
BIOL. CENTE.-AMER., Colcopt., Vol. II. Ft. 2, February 1888. 2 AA

178 LAMELLICOENIA.

similarly dark-coloured and smooth, pruinose species of Lachnosterna. The following
secondary sexual characters will facilitate its determination :^ —

(S . Pygidium mediocriter convexum, apice explanato-reflexo, nudum, rotundato-punctatum. Venter medio
mediocriter depressus, toto pruinosus, segmento 6° solum nitido, crebre punctate. Tibiarum posticarum
calcari inferiore connato, parvo, unciformi. Ungues omnes (basi d" $ breviter dentati) apice profunda et
anguste fissi, dente inferiore pauUo latiore.

$ . Pygidium ante apicem convexum, subconicum, apice ipso explanato-reflexo. Venter convexus, pruinosus,
segmento 6" solum nitido, crebre punctato. Tibiarum posticarum calcaria sat brevia, compressa, libera.
Ungues omnes dente inferiore parum latiore, mediocriter remoto, deorsum curvato.

9. Phytalus prolixus.

Cylindricus, elytris prsecipue valde elongatis, supra glaber, nitidus, castaneo-fuseus vel castaneo-rufus, elytris
plerumque fulvo-testaceis ; clypeo brevi, transverso, medio profunde sinuato, lateribus rotundatis, sat
sparsim punctato ; thorace transverso, post medium baud angustato, angulis posticis rectis, sat dense
punctulato ; elytris uudique punctatis, costis vix elevatis, interstitio suturali parce punctulato : pectore
fulvo-birsuto.

S . Pygidium parum convexum, glabrum, grosse disperse punctatum. Venter medio depressus, laevis, segmento
6° brevi, grosse punctato et setoso. Tibiarum posticarum calcar inferior breve connatum. Ungues apice
profunde fissi, dente inferiore paullo latiore et multo longiore.

$ . Pygidium a S baud differt. Venter convexus, Isevis, segmento 6° convexo, grosse punctato. Ungues
desunt.

Long. 20-26 millim.

Hob. Nicaragua, Chontales {Belt, Janson).

Five examples, of which one only is of the female sex.

The shape of the head is similar to that which prevails in the L. rorulenta and
L. fusva groups of Lachnosterna, which also exhibit the peculiar feature of a soldered
lower spur to the hind tibiae of the male.

10. Phytalus trichodes.

p. pvMcolli similariter pubescens, sed major, clypeo medio sat acute sinuato, etc. Oblongus, fulvo-ochraceus,
subnitidus, undique sat breviter dense fulvo-pilosus et dense punctatus ; capite umbilicato-punctato ;
antennis rufis, nitidis, elava pallidiore, opaca ; pectore dense fulvo-villoso.

Long. 17-20 millim.

Hab. Mexico, Las Vigas {Hbge).

Numerous examples were captured by Herr Hoge. P. trichodes is an oblong-ovate
species of tawny or reddish-ochreous colour, and densely clothed throughout with rather
short erect tawny hairs. The tarsal claws are dilated at the base, and, as in P. obsoletus,
differ as regards the apical tissure according to sex ; the following are the secondary
sexual characters : —

S . Pygidium sat elongatum, parum convexum, dense punctato-pilosum, margine apicali acuto, paullo reflexo.
Venter medio longitudinaliter depressus, subglaber ; segmentum 6™ magnum, convexum. Tibiarum posti-
carum calcari inferiore affixo brevi, unciformi. Ungues omnes apice anguste fissi, dente inferiore majore
et longiore.

5 . Pygidium glabrum, sparse punctatum, declive et paullo ante apicem unituberculatum. Venter medio
convexus, Isevis, suturis 1^-4™ obliteratis, segmento 6° convexo. Tibiarum posticarum calcaria gequaliter
elongata, ensiformia. Ungues omnes apice profunde fissi, dente inferiore distanti deorsum curvato.

PHTTALUS. 179

This species is the analogue of the L. ilicis and L. Mrticula group of Lachnosterna
(Leconte's Group IX.) ; but it is only an analogy, or the recurrence of similar external
features, as clearly demonstrated by the numerous important points of structural
diiFerence.

c. Lotver tooth of the claws much shorter than the ujp^er, sometimes parallel

to it, sometimes a little deflexed.

11. Phytalus macrocerus. (Tab. X. fig. 9, c? .)

Breviter ovatus, fulvo-testaceus, ventro flavo, fronte tlioraceque longe hirsutis. Clj^peus transversus, concavus,
margine antico valde elevato fere integro, supra parum punctato ; thorace discrete punctulato, medio
rotundato sed postice angustato ; elytris grossius discrete punctatis, costulis angustis elevatis, punctis
singulis setam incumbentem griseam emittentibus ; pectore fulvo-villoso. Antennae lO-articulatse.

cJ . Pygidium fere planum, disperse punctatum, setis nonnullis. Venter late concavus, fere Isevis, segmento 5"
apice medio dense granulate ibique margine sinuato, 6° medio lato, canaliculato, fasciculate, longe setoso.
Calcaria postica elongata, libera. Ungues basi vix dilatati, apice fissi, dente inferiore multo breviore,
pauUo latiore, obtuso. Antennarum clava longissima, flava, cseteris articulis conjunctis multo longior.

2 . Pygidium fere planum, apice conicum, sicut in c? disperse aetifero -punctatum. Ungues dente inferiore
quam in c? longiore et acutiore.

Long. 11-13 millim.

Hah. Mexico, Oaxaca, Cordova {Edge).
A large series of examples.

12. Phytalus platyrhinus. (Tab. X. fig. 10, 6 .)

Oblongus, subcylindricus, castaneo-fuscus, nudus, subnitidus, corpore subtus, antennis et pedibus fulvo-testaceis ;
clypeo brevi latissime quadrate, angulis rotundatis, antice leviter et late sinuato parum reflexe, sat dense,
fronte sparsim, punctato ; oculis magnis ; thorace ante medium dilatato, postice baud angustato. angulis
posticis rectis subacutis, subtiliter disperse punctulato ; elytris rugulose-punctulatis vel coriaceis, costis
perspicuis sed rugulosis ; scutello rufo-castaneo ; pectore fulvo-villoso. Antennae lO-articulatse.

c? • Pygidium convexum, versus apicem planulatum, politum, disperse punctulatum. Yenter medio usque ad
anum longitudinaliter anguste depressus, impunctatus, glaber, segmentis 5° et 6° parce punctulatis et pilosis.
Calcaria postica elongata acuta, inferiore breviore. Ungues dente inferiore multo breviore, acuto, nee
latiore, nee deflexo, Antennarum clava caeteris articulis conjunctis multo longior, articulis S"-?"" brevis
simis intus acute prolongatis.

2 . Pygidium medio transversim coneavum. Venter convexus. Ungues dente inferiore mediano sicut dente
apicali curvato sed multo breviore. Antennarum clava parva, evata, articulis .S"-?"" normalibus.

Long. 17 millim.

Hah. Mexico, Orizaba (Salle), Salazar, Jalapa (Hoge).

Six examples, of which one only (from Orizaba) is a female. The hind tarsi in this
latter are wanting, and the remarkable sexual difiference in the position of the lower
tooth is described from the anterior and middle pairs. The mandibles are short and
broad, and when closed are invisible. A specimen from Jalapa is figured.

180 LAMELLICOENIA.

13. Phytalus batillifer. (Tab. X. %. ii,c?.)

SubcjJ'lindricus, robustus, flavo-testaceus, glaber, elytris pruinosis ; clypeo elongato, valde concavo, rotundato-
quadrato, margine antico medio breviter recurvato-dentato, supra superficialiter (fronte grossius) alveolate ;
tborace medio perparum dilatato, postice vix angustato, margine serrato, robustissime setoso, supra
profunda irregulariter punctato ; elytris punctulatis, eeostatis ; pectore tenuiter fulvo-birto.

c? . Pygidium convexum, politum, dispersissime annulato-punctatum. Yenter medio concavus, sparse setifero-
punctulatus, segmento 6° piano cum 5*i apice canaliculate. Calcaria postica libera, elongata, acuta.
Ungues apice anguste fissi, dente inferiors multo breviore perparum grossiore ; basi obtuse dentati. Tibiae
anticae dente 3° vix perspicuo.

Long. 17-20 millim.

Hah. Mexico (Salle, ex coll. Sturm), Cuernavaca [Edge).

A species remarkable for its long shovel-shaped clypeus, the anterior recurved margin
of which projects far beyond the labrum. The mandibles are not visible and the tarsi
are robust-filiform, characters which show that the insect is closely allied to RMzo-
trogus. It bears the unexpressive name Ancylonycha pallida, Sturm (MS.), in the
Salle collection.

14. Phytalus hogei. (Tab. X. fig. 12, s .)

Oblongus, glaber, nitidus, castaneus, subtus fulvo-testaceus ; capite discrete baud grosse punctato, clypeo lateribus
parum rotundatis, margine reflexo, antice sinuato ; tborace ante medium dilatatus, deinde usque ad basin
recto (lateribus parallelis), discrete punctulato ; elytris mediocriter ruguloso-punctulatis, costis pauUo
distinctis ; pectore flavo-viUoso.
c? . Pygidium fere planum, disperse sat grosse punctatum, glabrum. Yenter medio vix depressus, politus,
segmento 5° simplici, 6" medio transversim baud profunde impresso vel sulcato fere laevi. Calcaria
postica gracilia. Ungues dente inferiore cum apicali parallelo baud latiore, acuto, multo breviore.
Antennarum clava valde elongata, caeteris articulis conjunctis multo longior; articulis 4''-7'" intus
pauUulum productis, 6" et 7° brevioribus et latioribus.

$ . Pygidium basi convexum, bicaUosum, apice planum, glabrum, parum punctulatum.

Long. 15 millim.

Hah. Mexico, Toluca (Edge).

Nearly a score of examples. This species, like others of this section, has the facies
of a Bhizotrogus.

Antennal club with 5 leaflets.

15. Phytalus pentaphyllus. (Tab. X. fig. 13, 6 .)

Elongato-oblongus, piceo-niger, glaber, nitidus, supra passim discrete baud profunde punctulatus, subtus cum
antennis pedibusque piceo-rufus ; clypeo parvo, lateribus antice convergentibus, margine antico anguste
reflexo, medio profunde emarginato ; tborace medio mediocriter dilatato, antice et postice aequaliter
angustato, angulis posticis acutis ; scutello sat dense punctulato, linea longitudinali laevi.
(J . Pygidium basi convexum, deinde verticale disperse punctatum. Yenter medio longitudinaliter depressus,
laevis, segmento 5" apice depresso, 6° basi convexo, medio Isevi, apice transversim sulcato-punctato.
Calcaria postica gracilima, acuta. Ungues basi obtuse dentati, apice anguste fissi, dente inferiore vix
latiore multo breviore. Antennarum clava valde elongata, pentapbylla, articuli T lamina paullo, 6' multo,
abbreviata, articulo 5° intus sat longe, 4° brevius acute productis.

Long. 18 millim.

PHTTALUS. . 181

Hah. Mexico, Ciudad in Durango {Edge).

There is a single male example only of this remarkable insect, which, notwithstanding
the eccentric structure of its antennae, seems to be perfectly congeneric with the other
species of the Group II. The parts of the mouth offer no perceptible difference ; and
the legs, though longer and more slender than usual, are similar in form and
proportions to those of certain species of Lachnosterna.

II. Antennal joints 3-5 [in S-jointed species 3 and 4) elongate and suh cylindrical.

1. Antennae 10-Jointed.

16. Phy talus seniculus.

Subcylindricus, pallide testaceus, fronte et thorace longe erecte flavo-pilosis ; clypeo mediocriter transverse,
antice siniiato discrete punctate, fronte grosse coufluenter scabroso-punctata ; thorace medio dilatato,
postice subsinuatim angustato, angulis anticis et posticis subrectis nuUomodo productis, supra sat dense
mediocriter grosse punciato ; elytris subtilissime punctulatis, fere laevibus, ecostatis ; pectore flavo-villoso.

c?. Pygidium mediocriter convexum, nitidum, punctatum, apice incrassato-reflexo. Venter medio parum
depressus, laevis, segmentis 5° et 6° breviter flavo-pilosis, hoc medio leviter concavo. Tibiarum posticarum
calcaria mediocriter elongata, libera, inferiore breviore. Ungues omnes dentibas fere sequalibus, inferiore
vix breviore ; basi minute dentati. Antennarum clava valde elongata, cseteris articulis conjunctis sub-
aequalis ; articulis S^-S™ cylindricis, gradatim longioribus, 6" minus elongate, 7° brevissimo.

Long. 13-15 millim.

Hab. Mexico, Chiapas, Tepansacualco (Salle).
Two male examples only.

17. Phytalus xanthocomus. (Tab. X. fig. 14, 6 .)

Oblongus, flavo-testaceus, glaber, fronte thoraceque dense erecte birsutis ; clypeo sat parvo, lateribus antice
pauUo convergentibus, apice rotundatis, margine reflexo medio inciso-emarginato, dense punctate, frente
alveolato-punctata ; thorace medio valde dilatato, angulis posticis rectis, anticis obtusis, supra sat grosse
et subdense punctate ; elytris punctulate-rugulosis ; pectore flavo-villoso.

cJ . Pygidium convexum, glabrum, disperse punctatum. Yenter depressus, Isevis, segmente 5° medio setose, 6°
medio feveato. Calcaria pestica libera. Ungues dente apicali sat late acute curvato, inferiore breviore,
paulle distanti, late; basi retundato-dilatata. Antennarum clava elongata, articulis 2''-7'" conjunctis
Eequalis, articulis S^-S"* paullo elongatis, cylindricis, 6° breviore, 7° brevissimo.

Long. 13 millim.

Bab. Mexico, Chiapas (Salle) ; Guatemala, Totonicapam (Champion).

Two examples, both males.

The claws are broadly dilated at the base and very gradually narrowed, but still
broad to the base of the tooth. This species and the following approach very closely
the Group I. of Lachnosterna. The Guatemalan example is figured.

18. Phytalus ?

Hab. Guatemala, Cerro Zunil (Champion).
One example, male, immature.

182 . LAMELLICOENIA. "

19. Phytalus bolacoides.

p. hucephalo affinis, major, postice ( 2 ) valde dilatatus, fronte et thorace longe et dense erecte fulvo-hirsutis ;
capite cum oculis magno ; clypeo semicirculari, antice profunde sinuato, castaneo-rufo, fronte nigra ;
thorace brevi, nigro-fusco, lateribus medio rufis, valde producto-dilatato, dense sat grosse subconfluenter
punctato ; elytris testaceo-flavis, plaga magna juxta-scutellari castaneo-nifa, nudis basi sparsim setosa ex-
cepta, subtiliter sparsim punctulatis, fere Isevibus ; subtus cum pedibus antennisque flavo-testaceis. Antenn86
lO-artieulatse, articulis 3°-5" elongatis, tenuibus, sequalibus, baud perspicue articulatis, 6° et 7° brevibus.

2 . Pygidium basi convexum, rugosum, post medium transverse valde depressum, apice iterum convexo,
callosum, Iseve. Venter convexus, suturis baud deletis, segmento 6" convexo, punctato. Ungues apice
fissi, dente inferiore pauUo latiore et breviore, magis curvato ; basi parum dilatati.

Long. 14 millim.

Hah. Mexico, near Acapulco {Baron, ex coll. Harford).
Resembles much species of the genera Bolax or Leucothyreus.

2. AntenncB ^-jointed, the sixth joint very short.

20. Phytalus bucephalus. (Tab. x. fig. 15, $ .)

Parvus, breviter cylindricus, fulvo-testaceus, nudus, nitidus, capite, thorace (lateribus exceptis), scutello
vittisque elytrorum duabus (una vaga suturali, altera postero-marginali) castaneo-fuscis (elytris interdum
toto fulvo-testaceis) ; capite magno, sparsim irregulariter grosse punctato, clypeo brevissimo, lateribus
oblique rotundatis, margine anteriore medio verticaliter arcuato-reflexo (baud emarginato) ; thorace post
medium rotundato-dilatato, postieo citius quam antice angustato, margine grosse crenato ; elytris sub-
rugulose punctulatis ; pectore f emoribusque fulvo-hirtis. An tennae articulis 3''-5'" elongatis, sequalibus,
tenuibus, 6° brevissimo.

c? . Pygidium convexum, politum, sparse punctatum, margine apicali reflexo. Venter medio depressus, vage
canalioulatus, segmento 5° medio longe parce setoso. Calcaria postica elongata acuta, libera. Ungues
curvati, apice fissi, dente inferiore latiore et breviore, apice subtruncato. Antennarum clava caeteris
articulis conjunctis longior.

2 • Pygidium a S hand differt. Venter convexus, suturis medio obliteratis, segmento 5° sicut in S • Calcaria
postica elongata, apice obtusa. Ungues apice latins fissi, dente inferiore deorsum magis curvato.

Long. 10-11 millim.

Hah. Mexico, Parada {Salle). Two examples.

21. Phytalus SBgrotus,

Anguste oblongus, flavo-testaceus, fronte cum verticeque nigra, thorace medio castaneo ; capite cum oculis
magno distanter asperato-punctato, clypeo brevi, transversim quadrate, margine alte reflexo, integro,
supra valde concavo, sparse punctato ; thorace medio mediocriter rotundato-dilatato, discrete punctato,
margine antico (cum fronte) erecte hirsute, csetera superficie glabro ; elytris sat dense punctulatis, costulis
distinctis ; pectore cinereo-flavo villoso.

cJ . Pygidium convexum, crebre vel scabrose punctatum, glabrum, basi transversim sulcatum, apice sulcato-
marginatum. Venter medio parum depressus, parce setosus, segmento 5° medio densius setoso, 6° trans-
versim perparum depresso. Calcaria postica elongata acuta, libera. Ungues dente inferiore multo
breviore, pauUo latiore et deflexo, apice obtuso : basi breviter obtuse dentati. Antennarum clava
elongatissima, cseteris articulis conjunctis dimidio longior ; articulo 5" valde elongate, 6° brevissimo.

Long. 13 millim.

Hah. Mexico, Tepansacualco {Salle).

Var. clypeo lateribus paullo convergentibus, margine minus alte reflexo.

Hah. Mexico, Parada {Salle).

PHYTALUS. 183

Two examples of the type, both males. The antennae are elongated both in stem
and club, but the club is half as long again as the stem. The var. is to some extent
intermediate between this species and P. bucephalus ; it is barely 11 millim. long.

22. Phytalus lineatus. (Tab. X. fig. 16, $ .)

Anguste oblongus, flavo-testaceiis, vertice nigricante, thorace plerumque vitta dorsali (usque ultra scutellum
extensa) infuscata, supra glaber, nitidus ; cljpeo brevi, late et obtusissime rotundato, cum fronte grosse
subconfluenter punctate; thorace elytris latiore, antice angustato, lateribus a basi usque ad apicem
arcuatis, angulis posticis subrotundatis, supra discrete pvmctulato ; pectore flavo-birsuto.

c? . Pygidium sat elongatum, subcouvexum, sparsim punetatum, apice reflexum. Yenter medio late concavus,
segmento 5" dense et longe flavo-barbato medio canaliculate, 6° postice valde elevato, apice medio producto,
asperate. Tibiarum posticarum calcaria libera, inferiore multo breviore. Ungues basi sat acute dentati,
apice fissi, dente inferiore multo breviore, pauUo latiore, apice obtuso. Antennarum clava cseteris articulis
conjunctis longior.

2 . Pygidium medio depressum, prope basi et apicem convexum. Venter segmentis singulatim convexis et
setosis. Ungues sat anguste fissi, dentibus subsequalibus.

Long. 12-16 millim.

Hah. Mexico, Parada, Capulalpam, Peras, Yolos, Juquila [Salle), Cordova, Oaxaca
{Hoge).

This species bears the name (which I have adopted) Phytalus lineatus, Reiche (MS.),
in the Salle collection.

We figure a female example from Cordova.

23. Phytalus stramineus. (Tab. X. fig. 17, $ .)

Minor, pallide flavo- (fere albo-) testaceus, capite et thorace pauUo rufioribus, glaber, passim discrete punctulatus ;
clypeo rotundato, margine reflexo, medio leviter sinuato ; antennse articulis 3° et 4° elongatis, 5" dimidio
breviore ; thorace medio subangulatim leviter dilatato, antice et postice fere sequaliter angustato ; pectore
mediocriter flavo-hirsuto. Ungues S $ profunde fissi, dente inferiore pauUo latiore et breviore.

(S . Pygidium convexum, pilifero-punctulatum, margine apicali reflexo et subtus planato. Venter medio late
depressus parce erecte pilosus, nitidus, segmento 5° apice arcuatim emarginato, 6° leevi, medio canaliculato.
Calcaria postice compressa, libera. Antennarum clava elongata, cseteris articulis conjunctis sequalis.

2 . Pygidium medio depressum vel coucavum, sicut in c? piliferum, apice magis reflexo. Venter medio Isevis,
segmento 6° convexo, parum punctate.

Long. 12-13 millim.

Eab. Mexico, Iguala in Guerrero (Edge). Three examples.

This and the following difi'er from the other species of Section II. in the fifth
antennal joint being, although subelongate, only half as long as the fourth, instead of
being equal or longer.

24. Phytalus ciudadensis.

Anguste oblongus, nitidus, flavo-testaceus, capite thoraceque rufis ; capite mediocri, oculis magnis, clypeo brevi,
lateribus rotundatis nee antice convergentibus, margine antico alte reflexo, medio leviter sinuato, supra
dense, fronte sparsim, punctatis ; thorace lateribus rotundatis, supra disperse punctulato ; elytris discrete
punctulatis, paullo rugulosis, ecostatis.

cJ . Pygidium sicut in P. cegroto crebre rugoso-punctatum, glabrum, basi transversim sulcatum. Venter medio
parum depressum, sparsim, segmento 5° longius, setosum, 6° medio transversim paullulum depressum.

184 LAMELLICOENIA.

■ Calcaria postica gracilia, libera. TJngues dente inferiore multo breviore, vix grossiore nee deflexo. Anten-
narum clava valde elongata, cseteris articulis eonjunctis longior ; articulo 5° quam prsecedens longiore.
Long. 10-11 millim.

Hob. Mexico, Ciudad in Durango (Edge). Two male examples.

Very closely allied to P. wgrotus, but sufficiently distinct by the clypeus being much
shorter, broader, and less quadrate, and sinuated on its front margin. The lower tooth
of the tarsal claws is also rather longer and narrower. The thorax is clear testaceous-
red and not castaneous on the disc as in P. cegrotus and its var., which latter partly
bridges over the difference between the two species.

25. Phytalus fissilabris.

p. htwephalo similis, quoad clypei formam Lachnosternce longitarsi (Say) simillimus ; differt inter alia tboraee
grosse punctato. Parvus, angustus, castaneo-fuscus, pedibus fulvo-testaceis, nudus, fronte thoraceque pilis
nonnuUis elongatis ; clypeo parvo, antice profunde sinuate, lateribus rotundatis, supra grosse punctatis,
fronte grosse scabroso-punctata ; labro exposito profundissime sinuato ; ooulis maximis ; thorace
grossissime disperse punctato ; elytris ruguloso-punctatis ; pygidio convexo, disperse punctato, apice
reflexo ; ventris suturis baud deletis subtilibus ; antennae 9-articulat3e ; mandibula lata, robusta, apice
rotundata.

S . Venter fere laevis, segmentis 2°-5"' convexis, 6° transversim depresso, punctulato. Calcaria postica gracilia,
acuta, libera. Ungues apice fissi, dente inferiore paullo breviore apiceque citius acuminato. Antennae
desunt.

2 . Venter convexus, lateribus punctatis, Calcaria postica apice obtusa. Ungues dente inferiore multo
breviore. Antennarum clava ovata.

Long. 10-11 millim.

Hah. Mexico, Orizaba [Salle), Las Yigas (Hoge).

Two examples only. The male, which is imperfect, has more voluminous eyes, and
a more deeply sinuated and more reflexed clypeus, than the female, and the forehead
and thorax clothed, but not thickly, with long, fine, erect hairs. The short clypeus
with its large median sinuation causes the labrum to be prominent and exposed.

3. Antennce ^-jointed, the fifth joint very short.

26. Phytalus poculifer.

Parvus, breviter ovatus, livido-fuscus, nitidus ; antennis pedibusque fulvo-testaceis, glaber, fronte thoraceque
longissime hirtis ; clypeo sat elongato-quadrato, profunde concave, parce punctato, margine alte reflexo,
integro, fronte convexa et grosse punctata ; tboraee ante medium valde dilatato, angulis obtusis, supra sparse
mediocriter grosse punctato ; elytris sequaliter discrete punctulatis, ecostatis. Mandibula inter labrum et
mentum baud exserta.

cJ . Pygidium convexum, politum, glabrum, fere laeve. Venter laevis, segmento 5° medio peniciUato-setoso, 6°
margine apicali transversim depresso, punctato. Calcaria postica libera. Ungues dente inferiore multo
breviore sed nee latiore nee deflexo ; basi dente lato obtuso triangulari.

Long. 8| millim.

Hal. Mexico {coll. Bates).

A single male example, somewhat immature. The concealed mandibles and 8-jointed
antennae would bring the species within the definition of Erichson's genus Anonetus ;

PHTTALUS.— LACHNOSTEENA. 185

but the dentition of the claws is widely different, Anonetus being defined as having a
quadrangular tooth at the base of the claw. It will be seen further on that a section
of Lachnosterna has also 8-jointed antennae, and, in some examples but not in others,
concealed mandibles, so that the genus is evidently untenable.

27. Phytalus ?

Hob. Mexico [Salle, ex coll. Sturm).

Two mutilated specimens of a species with 9-jointed antennae, named by Sturm
Schizonycha puncticollis. .

LACHNOSTERNxi.

Lachnosterna, Hope, Col. Manual^ i. p. 100 (1837); Leconte^ Journ. Acad. Nat. Sc. Phil. ser. 2,
iii. p. 235 (1856); Kirsch, Sharp, Lansberg, Waterhouse, Quedenfeldt.

Ancylonycha, Blanchard_, Hist, des Ins. i. p. 216 (1845) ; Cat. Coll. Ent. i. p. 132 (1850) ; Burmeister,
Handb. der Ent. iv. 2, p. 308 (1855); Lacordaire, Gen. Col. iii. p. 284 (1856).

Trichestes, Erichson, Naturg. Ins. Deutschl. iii, p. 658 (1848).

Endrosa, Leconte, Journ. Acad. Nat. Sc. Phil. ser. 2, iii. p. 234 [1856] (apud Horn, Trans. Am.
Ent. Soc. vii. p. 138 [1878]).

Gynnis, Leconte, 1. c. p. 262 (apud Horn, Trans. Am. Ent. Soc. vii. p. 138).

The species with more or less narrowly-cleft tarsal claws being excluded to form the
unsatisfactory genus Phytalus, a polymorphic host of nearly 200 described species
remain, which it is extremely difiacult to arrange in natural groups. After trying
various courses, I have preferred to take the armature of the claws as a basis of
grouping, finding that the result does less violence to the apparent natural affinities of
the species than is shown when any other varying character, such as the structure of the
antennae, the parts of the mouth, or the secondary sexual characters, is adopted. I do
not wish it to be inferred that the groups are perfectly natural and applicable to the
species of other regions ; in fact they apply very imperfectly to the Lachnosternce of
temperate North America, and not at all to Asiatic species. But neither does the
system adopted in Leconte's synopsis of the North-American species suit the forms of
the Tropical- American fauna.

The genus is very numerously represented in our region, particularly in Mexico, and
judging from the many single specimens of apparently distinct species met with by our
travellers, and that continue to arrive, it is highly probable that we are not acquainted
with one half the species that exist in the country. The genus seems to diminish in
the number of its representatives further south, but many are described from Colombia,
Venezuela, and the West Indies ; in the plains of the Amazons it is practically unknown,
a single damaged example found after a storm being all that I met with during eleven

BIOL. CENTK.-AMEE., Coleopt., Vol. 11. Pt. 2, Felruavy 1888. 2 BB

186 . LAMELLICOENIA.

years' collecting. It reappears, however, in numerous species in South Brazil. In the
Old World it is spread over Eastern and South-eastern Asia, and a few species have
been described from islands in the Indian Ocean and also from West Africa.

I. Claws broadly cleft, or with the lower tooth situated above the middle of the claw ;
base broadly dilated or toothed ; the three dentiform ^processes more or less closely
approximated. '

In the species included in this section the margin of the clypeus is generally a little
reflexed and notched in the middle, and the thorax coarsely punctured and broadly
dilated.

1. Lachnosterna castaniella. (Tab. X. fig. 18, 6 .)

L. panimpunctatce similis ; minor, castanea, nitida (capite thoraceque interdum obscurioribus) ; subtus cum.
antennis pedibusque falvo-rufa ; clypeo subsemicirculari, margine parum reflexo medio anguste sinuato ;
capite toto grosse et dense subconfluenter punctate ; thorace valde dilatato-subproducto, disperse medio-
criter grosse punctato ; scutello parce subtiliter punctato ; elytris postice pauUo ampliatis, sat dense
punctulatis, prope suturam rugulosis ; pectore fulvo-villoso.
cJ . Pygidium apice obtuse truncatum, medio plus minusve late sulcatum, utrinque convexum, glabrum, politum,
sparse punctulatum. Venter medio pauUo depressus, fere Isevis, segmento 5" apice medio plaga parva
granulata, margine postice valde arcuatim emarginato, 6° magno, medio depresso, granulato et erecte piloso,
Calcaria postica libera. Ungues basi baud dentati sed dimidio basali sequaliter dilatato, dentibus duobus
apicalibus subparallelis, inferiore obtuso et multo breviore latioreque. Antennarum clava valde elongata,
cseteris articulis conjunctis longior.

$ . Pygidium sicut in ^ , sed lougior, basi convexum. Venter eonvexus, medio laevis, segmento 6" magno,
convexo, 5° et 6" setifero-punctulatis. Ungues a J baud diversi, dente inferiore excepto ab apicali magis
distant!.

Long. 11-12 millim.

Hab. Mexico, Atenquique in Jalisco [Hbge). Ten examples.

2. Lachnosterna heteronycha. (Tab. X. fig. 19, s .)

Parva, oblonga, postice latior, fulvo- castanea, undique sat longe, apud thoracem elytrorumque basin longissime,
fulvo-birsuta, dense (thorace paullo grossius) punctulata; clypeo mediocri subquadrato, lateribus angulisque
rotundatis, margine antico paullo reflexo et sinuato, fronte declivi, plana, grosse scabrosa, supra transversim
obtuse carinata, occipite Isevi polito ; tborace post medium angulatim dilatato, antice sinuatim angustato,
angulis anticis actitis, posticis subrectis ; elylris ecostatis ; pectore pedibusque longe hirsutis. Antennae
10-articulatae, articulis 3''-5'" paullo elongatis, 6" et 7° brevissimis. Ungues apice late fissi, dente inferiore
multo latiore, paullo breviore et deflexo ; basi 2 posticorum gradatim modice, 4 anteriorum grossissime
angulatim, dilatati.

<S . Pygidium convexum, sat dense punctulatum et longe erecte hirsutum, apice explanatum margineque acute
reilexo. Venter medio depressus, sat sparsim punctato-setulosus, segmento b° fovea lata densius punc -
tulata, 6° brevi, grosse punctato, canaliculato. Calcaria postica libera. Antennarum clava cseteris
articulis conjunctis longior. -

^ . Pygidium sicut in c? . Venter segmentis 2°-5'" sat dense erecte hirsutis.

Long. 12-13 millim.

Hob. Mexico, Yolos (Salle), Mexico city, Jalapa (Edge).
A specimen from Mexico city is figured.

LACHNOSTEENA. 187

3. Lachnosterna tridens.

Oblonga ( $ ), postice dilatata, castanea, breviter, apiid frontem et thoracem altius, hirsuta, thorace sat dense
et grosse, elytris subtilissime et dense, punctatis ; clypeo mediocri transversim quadrate, angulis rotundatis,
margine altius reflexo medio depresso et sinuato, fronts pauUo convexa, confluenter grosse punctata, oceipite
Isevi ; thorace medio valde dilatato, angulis omnibus obtusis sat distinctis, margine crenato. Antennae
lO-articulatse, articulis 3°-5"» pauUo elongatis gradatim decrescentibus, 6° et 7° brevibus,
2 . Pygidium parum convexum, setifero-punctulatum, ante apicem unituberculatum, sulcato-raarginatum.
Venter segmento 6° magno, convexo. Ungues tridentati, dilatatione basali apice acute dentata, dentibus
mediano et apicali gradatim longioribus, et omnes sequaliter approximatis.

Long. 17-18 millim.

Rab. Mexico, Capulalpam, Peras (Salle).

Two examples, both females. This is the only species known to me in which the
claws of all the feet have equidistant and similarly-formed acute teeth, differing only in
their gradually increased length ; the basal tooth is a prolongation of the apical angle
of the long and broad basal dilatation.

The species is evidently closely allied to L. heteronycha.

4. Laclinosterna piceola. (Tab. X. fig. 20, j .)

Elongato-ovata, piceo-nigra, elytris paullo rufioribus, supra glabra, nitida, fronte thoracisque margine antico
parce longe fulvo-setosis ; capite grosse, fronte (decliva) confluenter, punctate, oceipite transversim obtuse
elevato ; clypeo parvo, transverse, utrinque rotundato, margine antico angulatim sinuato et parum reflexo ;
thorace relative parvo, medio valde dilatato, margine remote crenato, supra disperse sat grosse punctato,
angulis posticis acutis, anticis obtusis; elytris sat dense punctulatis, costa interiore obliqua, parum
perspicua; pectore fulvo-villoso. Antennae lO-articulatse, articulis S^-T"" suboequalibus.

S. Pygidium convexum, glabrum, gequaliter punctatum, margine apicali reflexo et subtus horizontaliter
continuato. Yenter medio convexus, politus, Isevis, vix medio canaliculatus, segmento 5° apice depresso,
punctulato, 6° medio concave ibique punctulato. Calcaria postica elongata, libera. Ungues apice sat
anguste fissi, dente inferiore crassiore breviore curvato deflexo acute ; basi paullo rotundato-dilatata.
Antennarum clava mediocris, articulis 3°-7'" conjunctis fere aequalis.

2 . Pygidium glabrum, punctatum, basi convexum, apice planum, margine apicali subacuminato valde reflexo et
subtus horizontaliter continuatum. "Venter convexus, Isevis, suturis deletis, lateribus et segmento 5° punc-
tulatis, segmento 6° convexo parciter grosse punctato. Calcaria postica sicut in S , sed inferiora, apice
obtuse. Ungues valde curvati, apice latins fissi, dente inferiore submediano. Thorax antice crasse
marginatus, sulculo proftmdo.
Long. 14-15 millim.

Hab. Guatemala, near the city, altitude 5000 feet (Salvin). Two examples only.

5. Lachnosterna scabrifrons. (Tab. X. fig. 21, § .)

Elongato-ovata, nigra, nitida, glabra (elytris, pedibus antennisque interdum piceo-rufis), ventre piceo-rufo : clypeo
transverse, lateribus late rotundatis, margine vix reflexo antice medio angulatim sinuato, grossissime,
fronteque adhuc grossius subeonfluenter punctatis ; thorace brevi, medio valde dilatato, distanter crenato,
angulis posticis acutis, anticis obtusis, supra sparsissime subgrosse punctato, margine anteriore incrassato ;
scutello lievi; elytris ($) postice dilatatis, ruguloso-punctulatis ; antennis articulis 3°-6™ subelongato-
ovatis.
: 2 • Pygidium basi convexum, apice depressum, margine apicali incrassato-reflexo ; glabrum, disperse punctatum,
Antennarum clava parva. Ungues dilatati ; basi dentati, dente inferiore elongate acute deflexo ab apice
sat distanti.

Long. 16 millim. - '

2 BB 2

188 LAMELLICOENIA.

Hob. British Hondueas, R. Sarstoon {Blancaneaux) \ Guatemala, Cerro Zunil
(Champion).

Two examples, both females. Closely allied to L. 'piceola, but differing too much in
the outline of the clypeus and in the punctuation of the thorax to admit of the suppo-
sition that it is the female of that species. The Guatemalan example is figured.

6. Lachnosterna leonina. (Tab. X. fig. 22, s .}

L. eribricoUi et L. rugicolU proxime affinis ; differt corpore toto fusco-nigro, antennis pedibusque rufioribua,
utroque sexu thorace elytroriimque basi et prope suturam pilis valde elongatis erectis obsitis elytrisque
lateribus quoque breviter griseo-pilosis ; clypeo parvo, extus sat late rotundato ( ^ ), antice medio late
sinuato ; thorace medio valde dilatato, antice leviter sinuatim angustato, atjgulis anticis acutis, grossissime
et dense sed parum confluenter punctato ; elytris paullo grossius quam in L. eribricoUi, multo grossius
quam in L. rugicolU, punctatis, costis sat perspicuis ; pectore pallide Mvo-villoso abdomineque lateribus
incumbente sat dense pubescentibus. Antennae lO-articulatte,

cJ . Pygidium mediocriter convexum, nitidum, vage parum profunde punctatum, longe erecte hirsutum, apice
glabrum. Yenter medio convexus, politus, interdum subtiliter canaliculatus, segmento 5° apice arcuatim
emarginato, medio apice dense punctulato, segmento 6° magno, medio area depressa setifero-punctulata.
Calcaria postica libera, superiore acuto inferiore subspathulato. Ungues basi quadrato-dilatati, dente
mediano cum dente superiore fere parallel! sed illo paullo latiore et breviore, dentibus tribus basi approxi-
matis. Antennarum clava sat brevi. .

2 ? Pygidium planum, vage rugoso-punctatum, setiferum. Venter medio convexus, l^vis, segmento 6° simplici,
punctis nonnullis grossis. Clypeus lateribus baud late rotundatis, arcuatus, medio antice sat acute inciso-
sinuatus.
Long. 13-16 millim.

Hah. Mexico, Toluca, Peras (Salle).

Two males from Toluca ; two females from Peras : the difference in the outline of
the clypeus may, therefore, indicate a local variety. In all other points the specimens
agree perfectly. They are named L.foveicollis, Sturm, in the Salle collection, but are
certainly a different species from the one described under that name by Sturm.

A male specimen from Toluca is figured.

»

7. Lachnosterna pubicauda.

L. leonincB affinis ; differt colore toto rufo-testaceo pygidioque crebre punctulato, et longe pubescente. Thorax
antice tenuiter marginatus. Ungues sicut in L. leonina, sed basi minus late dilatati.

d" . Pygidium margine apicali valde reflexo. Venter segmento 5° apice arcuatim emarginato, glabro, 6° magno,
medio baud depresso, grosse setoso-punctato, longitudinaliter sulcato,

? . Pygidium apice mediocriter reflexo. Venter segmento 5" parum arcuato-emarginato, e** breviore, convexo,
grosse punctato.

Long. 14-16 millim.

Hah. Mexico, Parada, Oaxaca (Salle).

Three examples. The great difference in the punctuation and pubescence of the
pygidium, in both sexes, indicates a species distinct from L. leonina, though the form
and sculpture of the head, thorax, and elytra are almost exactly similar. The sixth
ventral segment in the male shows no trace of the depressed median area, or wide

LACHNOSTEENA. .^ 189

shallow fovea, which is so definite a character in the two males examined of L. leonina.
The fine and close punctuation of the pygidium extends very near to the apex, and the
pubescence is long and flatly adpressed like that of the propygidium and the sides of the
abdomen, but the pubescence is easily abraded. In L. leonina the base of the pygidium
is clothed with very long, erect hairs, and the apical third is glabrous.

8. Lachnosterna dulcis.

L, cribricolli affinis, quoad thoracis foveas grossas simillima ; diiFert corpore ovato, castaneo-fusco fere aigro,
antennis pedibusque testaceo-rufis ; capita sicut in L. cribricolli grossissime confluenter punctato ; clypeo
subsemicirculari, margine antico angulatim sinuato, fronte longe, thorace longissime, erecto-pilosis ; thorace
grosse irregulariter parce foveato, spatiis Isevibus ; scutello impunctato ; elytris ovatis, subtiliter punctulatis,
juxta suturam solum rugulosis, disco et lateribus sublsevibus, pilis longis paucis juxta scutellum exceptis
glabris ; pectore fulvo-villoso, pedibusque pilis longis fimbriatis.

cJ . Pygidium convexum, basi glabrum, apice longissime dense hirtum. Yenter convexus, medio laevis, segmento
5° apice declivi, 6° transversim depresso-concavo. Calcaria postica libera. Ungues valde curvati, tridentati,
dente apicali multo longiore, acuto. Antennarum clava parva.

Long. 15 millim.

Hah. Mexico, Toluca (Edge). Three males.

The three teeth of the claws are, as in L. cribricollis, separated only by narrow clefts,
the apical one being much the longest, the basal quadrate. In colour and in the very
long, erect hairs of the anterior part of the body L. dulcis resembles L leonina ; but it
is a broader and much smoother insect, and the elytra are destitute of the short hairs
distinguishing L. leonina.

9. Lachnosterna xanthe.

L. cribricolli affinis ; multo minor et minus elongata, ovata, fulvo-testacea, subnitida, capite et thorace rufioribus
longe pilosis, elytris (margine fimbriata excepta) glabris, sat dense punctulatis, ecostatis ; capite grosse
confluenter punctato ; clypeo utrinque sat late rotundato, margine antico elevato, medio sinuato-depresso ;
thorace sicut in L. cribricolli et L. dulci grosse foveato sed foveis plerumque discretis, spatio amplo utrinque
prope basin lasvissimo.

c? , Pygidium convexum, sat dense punctulatum et breviter erecte pilosum. Venter medio pauUo depressus,
politus, sparsissime punctulatus, interdum canaliculatus, segmento 5° apice declivi, dense punctulato, apice
arcuatim emarginato, 6° transversim depresso granulate. Calcaria postica libera. Ungues sicut in L. dulci.
Antennarum clava elongata, articulis 2°-7'" subaequalis.

Long. 12 millim.

Hab. Mexico, Durango city, Pachuca in Hidalgo, Chihuahua city {H'dge).
Four examples, all males.

10. Lachnosterna cribricollis. (Tab. X. fig. 23, 6 .)

Ancylonycha cribricollis, Blanch. Cat. Coll. Ent. i. p. 133 \

Hab. Mexico \ Guanajuato, San Luis Potosi {Salle), Mexico city {Flohr).

Among the pale reddish-testaceous species this is distinguished by its relatively small
and extremely coarsely and irregularly punctured thorax. The tarsal claws, with the

190 f LAMELLICOENIA.

exception that those of the intermediate pair are not distorted, are nearly as in L. ravida
and L. testaceipennis, that is, they have a broad basal tooth, a less broad and longer
median tooth, and a long sharp and curved apical tooth, the intervals between all of
which are nearly of the same width. In the female, as usual in the group, the median
tooth is less broad and more gradually pointed than in the male, and the distances
between the three teeth are considerably wider. The other sexual differences are : —

c? . Pygidium parum convexum, sparsim ruguloso-punctatum et setiferum, margine apicali valde reflexo.

Venter medio politus, Isevis, convexus, medio vage canaliculatus, interdum depressus et profnndius canali-

culatus ; segmento 5° et 6* plaga mediana dense et aspere pilifero-punctatis, 6° magno, piano, margine

apicali medio inciso. Antennarum clava parva, ovata.
$ , Pygidium planum, apice prope marginem (baud reflexum) convexum. Yenter convexus, Isevis, suturis late

deletis, segmentis 5° et 6" planis, politis, sparsim punctatis.
Long. 13-18 millim.

Besides a specimen named L. crihricollis, Blanch., there are others in the Salle
collection labelled Lachnosterna testacea, Sturm (MS.).

The Ancylonycha crihricollis. Redt., in Htigel's ' Kaschmir ' (1844) is anterior in date
to Blanchard's name (1850), but is wrongly placed in the genus, being a Schizonycha.

11. Lachnosterna rugicollis. (Tab. X. fig. 24, $ .)

Ancylonycha rugicollis, Sturm, Cat. p. 123 \

L. cribricolU (Blanch.) affinis, sed differt capite thoraceque piceo-nigris, hoc multo densius grossissime confluenter
punctato, etc. Elongato-oblonga, postice latior, subtus cum pedibus antennisque testaceo-rufa, capite
thoraceque piceo-nigris, elj tris fulvo-testaceis, his multo subtilius et sparsius quam in L. cribricolU punc-
tatis, ecostatis ; clypeo fere sicut in L. cribricolU, brevi rotundato, medio sinuato, sed sutura frontali vix
impressa ; thorace medio valde angulatim dilatato, margine grosse crenato, supra erecte piloso.

5 . Pygidium fere planum, erecte pilosum. Ungues tridentati, dente basali lato rotundato, mediano pauUo
distante elongate acuto, apicali longiore et acutiore.

Long. 14|-15^ millim.

Hab. Mexico ^ [Salle, ex coll. Sturm).

Three examples, two of which bear the name in Sturm's handwriting; one of them
is possibly a male, but the apex of the abdomen is wanting.

The species is certainly distinct from the wholly rufo-testaceous L. crihricollis^
Blanch., under which it is placed as a synonym in the Munich Catalogue.

12. Lachnosterna foveicoUis.

L. leoninm valde affinis. Magis ovata, nigro-picea, elytris glabris, sublsevibus, sparsissime et subtiliter punc-
tulatis, clypeo pauUo magis elongate ; thorace baud differt.

<S . Pygidium mediocriter convexum, apice longissimo pilosum, basi glabrum. Yenter medio convexus, Isevis,
vage canaliculatus, segmento 5° apice baud punctulato, 6" quam in L. leonina pauUo breviore, valde
concavo, subtiliter ruguloso. Ungues sicut in L. leonina^ sed dente basali majore, triangulari.

Long. 15 millim.

Eah. Mexico (Sturm, in coll. Salle).

I find in our collections no other example of this species than the single specimen
labelled as above by Sturm in the Salle collection.

LACHNOSTEENA. 191

13. Lachnosterna punctulicoUis. (Tab. X. fig. 25, c? .)

Oblonga, postice paullo dilatata, elytris glabris, castaneis, thorace nigro subopaco, minute et dense punctulato,
antice, medio et postice punctis grossis nonnullis setiferis transversim positis ; capite rufo-castaneo, grosse
scabroso, clypeo brevi, rotundato, antice medio late sat profunde sinuato, supra medio (ante suturam
frontalem) transverse cariuato, vertice transversim obtuse carinato ; thorace medio valde dilatato et postice
valde angustato ; elytris ecostatis, sat dense punctulatis ; pectore fulvo-villoso. Ungues omnes ( c? $ ) basi
grosse quadrato-dentata (dente parum elevato), dente mediano lato, apice acuto, dente apicali longiore,
acutiore.

c? . Pygidium parum convexum, disperse punctatum et erecte pilosum, margine apicali reflexum. Venter valde
convexus, medio politus, segmento 5" apice valde declivi sed giabro, 6° transversim concave, subtiliter
rugoso, medio longitudinaliter carinato. Calcaria postiea libera. Antennarum clava sicut in § ovata.

2 . Pygidium planum, paullo concavum, sed apice sensim elevato. Venter sicut in J , sed segmento 6° convexo,
polito, parce grosse punctato.

Long. 15-16 millim.

Ilab. Mexico, Yolos (Salle). Three examples.

Allied to L. cribricollis, though differing in so many important points. The carinated
clypeus, though the carina is not very sharply defined, betrays an affinity towards the
Old-World Schizonychoe.

14. Lachnosterna parumpnnctata.

L, puncticolli aifinis, sed difFert thorace polito, sparsissime punctato, etc. Oblonga, postice dilatata, nuda, capite
castaneo-rufo, thorace nigro, lateribus castaneo-rufis, elytris castaneo-fuscis, sat dense punctulatis, ecostatis,
■ antennis, corpore subtus pedibusque fulvo-castaneis ; clypeo brevi rotundato, margine antico elevato, medio
profunde sinuato, grosse confluenter punctato, linea elevata transversa obsoleta, fronte grosse scabrosa,
vertice elevato laevissimo ; thorace medio valde dilatato subproducto ; pectore fulvo-hirto. Antennae
10-articulatge.

cj . Pygidium parum convexum, grosse rugoso-punctatum, nudum. Venter convexus, medio Isevis, segmento 5"
medio aspere setifero-punctulato, margine postico arcuatim emarginato, segmento 6° medio lato aspere
granulate canaliculate. Calcaria postiea elongata, libera. Ungues basi valde quadrato-dilatati, dente
mediano lato, apice acuto, dente apicali graciliore, dentibus omnibus basi approximatis. Antennarum
clava ovata.

Long. 14 millim.

Hah. Mexico, near Acapulco [Baron, ex coll. Harford).

II. Dentition of claws as in I. ; but those of the middle feet of the male deformed^
the exterior claw being abruptly bent., and its lower tooth enlarged and projecting
laterally.

15. Lachnosterna ravida, (Tab. XL fig. l, d .)

Ancylonycha ravida, Blanch. Cat. Coll. Ent. i. p. 136 ^

Hob. Mexico i, Orizaba, Juquila, Cordova, Tepansacualco, Peras, Parada, Yolos
[Salle), Oaxaca [Salle, Hoge), Jalapa, Las Vigas [Hoge); British HOx\duras, E. Sarstoon
[Blancaneaux) ; Guatemala [Salle).

The unmeaning phrases which Blanchard thought sufficient to distinguish this
species from the similarly-coloured L. testaceijpennis apply equally well to the females
of both species. According to the examples named L. ravida (to all appearance

192 LAMELLICORNIA.

correctly) in the Salle collection, the species offers well-marked distinctive characters in
both sexes.

d" . Pygidium mediocriter convexum, disperse punctatum. Yenter medio depressus segmentisque 2°-5™ densis-
sime erecte pilosis, 5° margine postico medio recte truncato, Calearia postica sat gracilia, libera. Ungues
basi bidentati, dente inferiore recta ad dentem magnum basalem approximato ; ungues intermedii dispares,
exteriore majore, abruptius curvato et extus lobato.

$ . Pygidium planum, triangulare, apice paullo simpliciter convexo (" pygidio conico," Blanch.), disperse
punctatum, nudum. Venter breviter sat sparse setosus, politus. Ungues basi dente magno sed dente
normali inferiore magis distante, longiore et acutiore.

The claws are remarkable for the large and more or less quadrangular dilatation of
their base, in both sexes. In the male they are further distinguished by the ordinary
tooth lying nearer the base and being separated from the dilatation only by a narrow
cleft, the tooth also being shorter and straighter than usual. In the female the
ordinary tooth lies nearer to the middle of the claw, and is separated from the dila-
tation by a wide interval. The distorted curvature of the left claw in the middle tarsi
is a further curious structure.

L. ravida resembles almost exactly Phytalus ohsoletus in colour and in sexual
characters, with the exception of those of the tarsi and claws.

We figure a male example from Oaxaca.

16. Lachnosterna dentex.

L. ravidce affinis, unguibus similibus ; sed difFert corpore erecte piloso, etc. Minor, oblongo-ovata, rufo-testacea,

niti da, erecte pilosa ; antennarum clava pallidior; clypeo concavo, margine antice elevato nee sinuato ;

thorace disperse punctato ; elytris punctulatis, ecostatis ; pectore fulvo-villoso.
cJ . Pygidium mediocriter convexum, sat dense, apice versus parcius, punctulatum, erecte pilosum. Venter

medio depressus, subnitidus, sparsim setosus, segmento 5" apice medio densius aspere setifero-punctato.

Calearia postica elongata, libera. Ungues valide tridentati ; intermedii sicut in L. ravida difibrmes, ungue

exteriore abrupte curvato et extus dente elongate.
Long. 16 millim.

Hah. Mexico, Milpas in Durango (Forrer), Guanajuato (Salle).

Two examples, both males.

The claws are toothed similarly to those of L. ravida, but the apex of the claw is not
so elongated and distant from the lower tooth, so that the dilated basal and the lower
and the upper teeth are nearly equidistant. The bent exterior claw of the middle tarsi
has on the outer side a longish projection, which is no other than the median tooth
diverted laterally out of its true position ; this tooth is here . of moderate length, but
longer and sharper than in L. ravida.

A single example of a Lachnosterna found by Herr Hoge at Giudad in Durango is
possibly the female of this species.

17. Lachnosterna anomaloides, (lab. XL fig. 2, d .)

L. ravidce affinis, unguibus similibus ; sed difFert elytris incumbenti-griseo-pilosis. Elongato-ovata, fulvo-
testacea, capite thoraceque rufis ; clypeo concavo, margine antico elevato integro ; thorace disperse punc-

LACHNOSTEENA. 193

tato, erecte fulvo-piloso ; elytris punctulatis ecostatis, breviter griseo-pilosis, pilis nonnullis longioribus

erectis prope basin et suturam ; pectore fulvo-villoso.
c? . Pygidium convexum, sat dense piloso-punctatum. Venter medio depressns et vage canaliculatus, segmentis

medio erecte pilosis, 6° medio lato, fere piano, canalicialato. Calcaria postica elongata, libera. XJngaes

apice prolongati, recti, dente basali magno, inferiore robusto, snbrecto ; intermedii difFormes, ungue exte-

riore validiore, torto, abrupte inflecto et extus appendiculato. Antennarum clava valde elongata, cseteris

articiilis conjunctis longior,
2 • Pygidium medio umbonatum. Yenter convexus, erecte pilosus. Ungues dente inferiore submediana

acutiore et curvato, basali sicut in c? ; intermedii normales.
Long. 14-15 millim.

Hab. Mexico, Ciudad in Durango (Forrer, Soge), Toluca (Hbge).

The displaced median tooth of the male middle claws is in this species greatly elon-
gated, and looks like a third claw.

A male example from Ciudad is figured.

18. Lachnosterna macrophylla. (Tab. XL fig. 3, c? .)

L. anomaloidi proxime afS.nis, Breviter oblongo-ovata, castaneo-fusca, elytris breviter incumbenti-griseo-
pilosis, fronte, thorace elytrorumque basi longissime hirsutis ; clypeo transversim quadrato, profunde
concavo (marginibus integris alte reflexis), sparsim punctato ; tborace postice baud angustato, angulis
posticis acutis, nitido, forte pimctato ; elytris punctulatis ; pectore fulvo-villoso.

(S . Pygidium convexum, longe erecte birsutum. Venter medio depressus vel concavus, sparsim setosus, segmento
5° apice medio et 6° (medio canaliculato) paullo densius asperato-punctatis et setosis. Calcaria postica
elongata, libera. Ungues tridentati, apice (dente apicali) multo longiore et acutiore, dente inferiore latiore
et breviore, basali magno triangular! ; intermedii difformes, sinistro abrupte curvato et apice prolongate.
Antennarum clava pallide fusca, longissima, cseteris articulis longior, articulis 5°-7™ brevibus, intus acute
productis.

Long. 12-14 millim.

Jffah. Mexico, near the city [Flohr). Many examples, all males.

Agrees closely in most of its characters with L. anomaloides, and, in the clothing of
the ventral surface, especially with the variety of that species ; but the general form is
totally different, being much shorter and relatively broader — this, together with the
long hairs of the anterior part of the body, being constant in numerous examples, there
can be little doubt that the species is distinct.

19. Lachnosterna dasypoda. (Tab. XL fig. 4, c? .)

Sat anguste elongato-oblonga, nitida, tenuiter subsparsim erecte longipilosa et disperse grossius punctata;
castaneo-rufa, elytris fulvo-testaceis, capite nigro ; capite grossissime confluenter punctato, oculis maximis,
clypeo semicirculari, margine antico reflexo, integro (in S interdum) leviter sinuato ; tborace minus
transverse, mediocriter medio rotundato-dilatato margineque crenulato, sat abundanter sed distanter
subgrosse punctato ; pectore fulvo-villoso. Pedes elongati, validi longipilosi, tarsis subtus densius et
brevius pilosi.

cJ . Pygidium valde convexum, politum, longissime erecte fulvo-pilosum, punctis minutis. Venter medio con-
cavus et canaliculatus, sat dense setosus, suturis late deletis, segmento 6° Isevi, medio transversim concavo,
margine anteriore incrassato medio late interrupto. Calcaria postica elongata, libera. Ungues dimidio
basali intus dilatato denteque mediano (a dilatatione baud separate) parvo acuto ; intermedii difformes,
magis curvati exteriereque basi valde irregulariter dilatato, interiere normali. Antennarum clava valde

BIOL. CENTE.-AMEE., Coleopt., Vol. II. Ft. 2, February 1888. 2 CC

194 LAMELLICOENIA.

elongata cseteris articulis conjunctis longior, artieulis S^-T"" brevissimis, intus acute productis. Clypeus

transversus, margins antico alte reflexo medio leviter sinuato.
2 . Pygidium medio prope apicem tuberculo valido compresso-conieo. Venter medio glaber, segmento 5°

postice (sicut lateribus) punctulato. Ungues omnes dente mediano elongate, curvato, a dilatatione basali

distanti.
Long. 20-24 millim.

Eah. Mexico, Puebla, Tuxtla, Chiapas {Salle) ^ Las Vigas {Edge) ; Guatemala,
Hoxohi (Champion) ; Co^i!:k'RiGA. {Van Patten).

Belongs to the L. ravida group, of which it is the largest known member. L. dasy-
poda approaches nearest to L. 7nacro]^hylla in pubescence ; but in the rather ample

subsemicircular clypeus it diiFers from all its allies. |

In the male the median tooth of the claws at its base forms part of the wide dila- \

tation of the basal half of the claw, and is small, triangular, and acute ; the basal tooth I

is not angular but gradually rounded, so that it appears separated by a considerable |

interval from the median tooth ; the apex remains for a long distance free. In the \

-I

female the median tooth has the same position as in the male, but is much longer and \

not greatly different in form from the apical tooth, from which it is separated by a much
shorter interval. In the other species of the group the form and position of the claw-
teeth are different, the basal tooth, especially in the male, being angular and separated i
from the median tooth by a narrow cleft. \
A male from Tuxtla is figured.

20. Lachnosterna polyphylla. (Tab. XI. fig. 5, s .)

L. ravidce similis, sed valde differt antennarum clava valde elongata et quinque-laminata, oblonga, fulvo-
testacea, thorace rufo, nitido, fronte thoracisque margine antico longe erecte setosis ; clypeo parvo, antice
angustato, apice obtuse truncate angulis rotundatis, margine mediocriter reflexo vix sinuato, toto capite
confluenter punctato ; tborace medio modice dilatato, baud dense punctulato ; elytris ruguloso-punctulatis.
cJ . Pygidium versus apicem subconice convexum, sparse (versus apicem longius et densius) pilifero-
punctatum. Venter medio depressus, nitidus sed pilosus, segmento 6° depresso, medio canaliculate,
longius et densius piloso. Calcaria postica libera. Ungues basi quadrato-dentati, dente mediano versus
basin curvato-inclinato, apicali longius libero ; intermedii c? ungue exteriore difformi denteque mediano
valde elongato extruso, Antennarum clava pentapbylla, caeteris articulis conjunctis fere duplo longior,
articulis 4° et 5° intus paullo productis, acutis, 6" vix abbreviate, 7° paullo abbreviato et attenuate, S^-IO™
gequalibus.
Long. 16 millim.

Hab. Mexico {Salle), One example, male.

21. Lachnosterna heterophylla.

L. pulyphyllce proximo affinis, antennarum clava pentapbylla sed articulo 7° multo abbreviato. Pulvo-fcestacea,
nitida, tborace rufo ; clypeo paullo longiore, antice angustato, margine altius reflexo medio sat profunde
sinuato, supra concave, punctato, medio laevi ; fronte thoracisque margine antico longe erecte setosis ;
tborace medio perparum dilatato, sparsim punctulato ; elytris ruguloso-punctulatis.

tJ . Pygidium regulariter convexum, glabrum, parum punctatum. Venter medio concavo depressus, erecte
pilosus, segmento 6° medio valde canaliculate. Calcaria postica libera. Ungues sicut in L. polypJiyUa,

LACHNOSTEENA. 195

sed basi oblique triangulariter grosse dentato nee quadrate. Antennarum clava pentaphylla, articulo 6°
sat abbreviate, 7" parvo et tenui, 8''-10'" sequalibus.
Long. 14 millim.

ffah. Mexico (coll. Bates). One male example only.

The first joint of the 5-jointed antennal club is one third shorter than joints 8-10,
and the second is only one sixth the length of those joints. The similarity between this
species and the preceding is so great that I should have been inclined to consider the
change in the proportionate lengths of the leaflets of the antennal club as due to
variation or aberration, had it not been for the different form and clothing of the
pygidium and the shape of the clypeus.

III. Claws broadly clef t ; lase moderately dilated ; lower tooth very broad and strongly

curved^ and denticulated on its lower edge.

22. Lachnosterna testaceipennis. (Tab. XL fig. 6, c? .)

Ancylonycha testaceipennis, Blanch. Cat. Coll. Ent. i. p. 134 \

Hob. Mexico i, Puebla, Cordova, Toxpam, Tlatingo, Orizaba, Juquila (Salle),
Las Vigas, Jalapa, Tula (Edge), Oaxaca (Salle, Edge) ; Guatemala (SallS), Cohan
(Champion) ; Costa Rica (Bogers).

Many examples in the Salle collection under the above name agree vrith Blanchard's
description of this insect. It can be best distinguished from the other numerous pale
or reddish-testaceous species of medium size (15-18 millim.) by the structural peculi-
arities of the sexes, which are as follows : —

cJ . Pygidium convexum, nudum, grosse sed baud profunde rugoso-punctatum. Yenter medio anguste
depressus, nudus, politus, segmento 4° apice medio et 5" toto medio dense aspere rugulosis, 6° late
transversim depresso, grossius rugoso-punctato, interdum medio canaliculate. Calcaria postica libera,
sed minus elongata laminato-compressa. Ungues dente inferiore multo breviore et latiore, apice truncate
subhamato margineque inferiore plus minusve denticulate ; basi usque ad dentem aequaliter dilatata.
Antennarum clava elongata,

9 . Pygidium paullo elongatum, rugoso-punctatum, breviter setosum, margine apicali medio verticaliter
plicate et fasciculato-setoso. Venter medio politus, interdum canaliculatus, segmento 5" postice et 6°
(convexo) setifero-punctatis. Calcaria postica brevia et late compressa. Ungues dente inferiore sub-
mediano lato sed acuminate, margine inferiore denticulato.

In most examples of the very numerous series examined the surface is dull, and, the
thorax especially, pruinose ; but in others from the same localities the surface is glossy
without trace of pruinosity.

2CC2

196 LAMELLICORNIA.

IV. Lower tooth of the claws long, acute, and distant from the apex ; basal tooth small.

1. Lower spur of the hind tibiw connate.

23. Lachnosterna rorulenta. (Tab. XI. %. 7, d .)

Ancylonycha rorulenta, Burm. Handb. der Ent. iv. %, p. 33] \

Fhytalo pruinoso similis, sed major et robustior. Oblonga, fulvo-castanea, pruinosa, pectore fulvo-hirsuto ;
clypeo sat parvo, subsemicirculari, medio antice sinuato, cum fronte subconfluenter punctato ; thorace
valde disperse rotundato-punctato, angulis posticis fere rectis ; elytris punctulatis, costis vagissimis baud
elevatis, la3vioribu8, stria punctata suturali (postice excepto) parum impressa.

cJ . Pygidium parum convexum, apice fimbriato excepto nudum, disperse punctulatum. Venter convexus,
medio fere laevis, vage canaliculatus, segmento 5° apice medio depresso et punctulato, 6° antice et postice
carinato medio sulco transverso ruguloso. Calcar posticum inferior breve unciforme infixum. Ungues
dente inferiore submediano late acuto, superiore valde curvato ; basi obtuse dilatati. Anteunarum clava
sicut in $ ovata.

$ . Elytra versus suturam et apicem longissime erecte pilosa, Pygidium dimidio apicali medio depresso-
planatum et utrinque elongato-callosum. Venter convexus, politus, suturis vix deletis, segmento 6° basi
convexo, Igevi, apice transverse depresso et grosse punctato. Calcaria postica sat elongata et acuta.
Ungues dente inferiore submediano, elongato.

Long. 20-22 millim.

Hah. Mexico, Las Vigas (Hoge) ; Guatemala, Torola {Champion) ; Costa Rica
{Van Patten). — South America, Venezuela i.

Ten examples, besides one male from Merida, Venezuela, whence Burmeister's
specimens were derived. The Costa Rican specimen is figured.

24. Lachnosterna chiriquina.

L. rorulentce afiinissima, forsan ejus varietas localis. Fulvo-testacea minus pruinosa, tborace polito, nudo,
pauUo densius punctato. Quoad capitis formam simillima ; sed $ pygidio valde ditf'ert.

S . Pygidium paullo convexum, politum, confuse punctatum, postice medio canaliculatum. Venter sicut in
L. rorulenta c? convexus, medio vage canaliculatus, sed differt subtiliter punctulatus velut coriaceus ;
segmento 5° apice depresso et densius punctulato, 6^ transversim bicarinato. Calcar posticum inferior
parvum infixum. Ungues dente inferiore submediano exstanti acuto elongato.

5 . Pygidium subtriangulare, apice bimammillatum. Venter omnino punctulatus, segmento 6° convexo, basi
laevi, apice punctato. Ungues sicut in c? .

Long. 20-22 millim.

Ilab. Pajs^ama, Volcan de Chiriqui {Champion, Trbisch). Seven examples.

25. Lachnosterna parvisetis.

L. rorulentce proximo affinis. Obscurius rufo-fusca, pruinosa, supra punctis omnibus seta minuta instructis ;

clypeo minore, citius rotundato plerumque densius punctato,
cJ . Pygidium parum convexum, nudum, medio postice canaliculatum. Venter calcaria postica et ungues

sicut in L. rorulenta.
5 . Pygidium fere sicut in L. rorulenta § , apice late depressum, subconcavum, nitidum, utrinque callosum.

Elytra sparsim longe erecte pilosa.
Long. 20-25 millim.

Hab. Mexico, Teapa, Cordova {Salle).

LACHNOSTERNA. 197

Three examples, besides one in my own collection received from Paris under the
name L. rorida. Barm., from which it is evidently distinct, and which is, moreover,
a South-Brazilian insect. I have seen only one male (from Teapa) ; it differs slightly
from the three females, and is much smaller (20 millim., the females being 25 millim.),
and seems intermediate between this species and L. rorulenta, but the punctures have
each a small grey seta.

26. Lachnosterna cinnamomea. (Tab. XI. fig. 8.)

Ancylonycha cinnamomea, Blanch. Cat. Coll. Ent. i. p. 134 \
Hah. Mexico ^ Cordova {Salle).

Extremely near Z/. ^^mseifis, but glabrous, without pruinose bloom, and the punctures
naked. Colour castaneous, shining. In the male the pygidium is polished and flattened
towards the apex ; the lower hind spur is rather longer than in L. rorulenta, but soldered
to the tibia ; the ventral segments are sculptured precisely as in that species. In the
female the pygidium differs in the apical area being more depressed and margined
laterally by much higher ridges.

2. Lower spur of the hind tibice freely articulated.

27. Lachnosterna sturmi. (Tab. xi. fig. 9, $ .)

Phytalo pruinoso similis. Anguste oblonga, suboylindrica, Migineo-nigra, elytris pleramque rufescentibus,
supra toto pruinosa ; pedibus castaneis, politis ; clypeo antice medio profunde subacute sinuato, capite toto
dense punctato ; thorace elytrisque disperse umbilicato-punctulatis, punctis (prope elytrorum apicem
breviter setosis exceptis) nudis ; pectore minus dense incumbenti-fuivo-piloso ; antennis castaneis, clava
fulvescente.
cJ. Pygidium mediocriter convexum, apice reflexum, disperse umbilicato-punctatum, nudum. Venter medio
canaliculatus, subl^vis, segmento b" apice medio depresso ibique aspere punctato, polito, 6° transversim
subdepresso rugoso. Calcaria postica libera, ensiformes, inferiore multo breviore. Ungues dente iaferiore
valido baud breviore, submediano ; basi parum dilatati. Antennarum clava paullo elongata, articulis

S"-?" sequalis.
$ . Pygidium subtriangulare, convexum, lateraliter subcompressum, apice reflexum. Yenter medio sparse
lateribus densius punctulato-pilosus, segmento & convexo, postice grossius punctato. Ungues sicut in J .
Long. 18-22 millim.

Hab. Mexico, Cordova, Orizaba, Tuxtla, Playa Vicente {Salle).

Closely resembling in form and sculpture Phytalus pruinosus, but widely differing in
the spurs of the hind tibi« of the male, the form of the tarsal claws, and other important
points of structure. It appears to have been hitherto confounded with P. ^ruinosus
(Burm.) ; it being so named in the Salle collection (by Sturm) and in my own from
specimens received years ago from Paris. I have examined nine examples.

The clypeus is a little more deeply notched in the middle of the front margin than
in P. pruinosus, and the sides are less convergent.
' Our figure is taken from a female specimen from Tuxtla.

198 LAMELLICOENIA.

28. Lachnosterna gigantea. (Tab. XL fig. 10, j.var.)

L.lebasii (Blancli.) affinis; maxima, oblonga, rufo-fusca vel nigra, capite, thorace, scutello, elytris et pygidio
subtilissime densissime punctulatis et breviter incumbente pubescentibus ; capite grossius subalveolato-
punctato, clypeo mediocri, obtuse rotundato, margine elevato medio breviter sinuato vel integro.

S . Pygidium convexum, margine apicali acute reflexo fimbriato. Venter subtilissime punctulatus et pubescens,
medio canaliculatus, suturis medio angulatis ; segmento 5° medio contracto, margine apicali utrinque
sinuato, spatio triangulari mediano granulato-ruguloso, lateribus utrinque transversim uniplicatis ; seg-
mento 6° brevi, transversim anguste concavo (medio earinato), marginibus elevatis, incrassatis, posteriors
medio fisso. Calcaria postica elongata, libera. Ungues fere sicut in L. setifera, dente mediano elongate
(denti apicali aequali) ; basi mediocriter dentato-dilatati. Antennarum clava valde elongata cseteris
articulis multo longior, articulis 5°-7" intus acute productis.

5 . Pygidium sicut in S , sed apice paullo prolongatum. Yenter subtilissime punctulatus et pubescens, seg-
mento 5" cseteris longiore, postice transversim canaliculate subplicato, 6° piano crebre punctate.

Long. 22-28 miUim.

ffab. NiCAEAGUA, Chontales (Belt, Janson); Panama, Chiriqui (Trotsch), Bugaba,
Volcan de Chiriqui 4000 to 6000 feet (Champion).

Seven examples, of which three from Chiriqui are black or brownish-black, including
the legs and antennae ; the others are castaneous (including the antennse and legs) ;
one (from Chontales) differs from the rest in having but a slight trace of sinuation in the
anterior margin of the clypeus. In all other respects the specimens perfectly agree.

A Chontales example is figured.

29. Lachnosterna setifera. (Tab. XI. fig. 11, <s .)

Ancylonycha setifera, Burm. Handb. der Ent. iv. 2, p. 335 \

Eab. Mexico i, Presidio [Forrer), Orizaba, Juquila {Salle), Jalapa (Edge) ; British
Honduras, R. Sarstoon (Blancaneaux) ; Guatemala {Salle), Volcan de Atitlan, Pan-
taleon, Zapote, Dueiias {Champion) ; Panama, Chiriqui {Rihhe).

Distinguished from L. crinalis by the sixth ventral segment in the male having its
anterior margin raised and dilated above, so as to impend slightly over the concave
centre of the segment, and cleft in the middle. This structure is no doubt that meant
by Burmeister by the phrase " die analgrube mit hoher, in der mitte gespaltener
Querfalte am Vorderrande." A similar " fold " is observed in L. longipilosa 6 , but
there is a difference between the two species, the fold being biarcuated in L. setifera,
and produced in the middle, the margin of the preceding (fifth) segment being corre-
spondingly produced ; in L. longipilosa the margins of both segments are straight. In
L. crinalis the fore margin of the sixth segment is somewhat thickened but riot raised.

L. setifera is further distinguished by the opaque and very faintly punctured
pygidium, which is rather densely clothed with erect greyish hairs, the tip in some
examples being smooth and shining. The claws have their well- developed lower tooth
(a little longer and broader in the female than in the male) very nearly in the middle,
its lower edge being finely denticulated ; they have only a slight angular dilatation at
the base, and there is a considerable interval between the dilatation and the tooth.

LACHNOSTEENA. 199

The clothing of the upper surface consists of obliquely-planted grey hairs with a few
longer erect hairs, and in some examples extremely long hairs, especially towards the
base of the elytra.

The length varies from 17 to 25 millim., but the great majority of the examples
measured are about 20 millim. The following are varieties : —

Var. 1 (Z. menetriesi, Blaneli., Burm. ?). Brevius et latins ovata, fusco-nigra, dense et regulariter breviter
griseo-pilosa, pedibus abdomineque interdum nigris.

Ilab. Guatemala, Volcan de Atitlan, Pantaleon (Champion) ; Nicaeagua, Ch on tales
(Janson); Costa Rica (Van Patten); Panama, Bugaba (Champion), Chiriqui (Trbtsch).

Var. 2, Minor (15 millim,) ; fusco-nigra, brevissime sat dense subrecte griseo-pilosa, elypeo margine alte elevato
pygidioque subnitido, perspieue punetulato ; ungiiibus basi latis.

Hah. Panama, near the city (Champion). One male only, with the characteristic form
of the apical ventral segments very conspicuously developed.

Var. 3, L. trotschi. Postice dilatata, fusco-rufa, capite tboraceque exeeptis fusco-nigris ; elypeo margine antico
medio depresso siibsinuato, pubescentia tota fulva nee grisea. Long. 20 millim.

Mab. Panama, Chiriqui (Bihhe). Three examples only.
We figure a typical male from Jalapa.

30. Lachnosterna crinalis,

Ovata, supra longe et dense, sed breviter, pilosa, pilis longioribus erectis intermixtis, thorace apiee elytrisque
basi pilis nonnullis longissimis, castaneo- vel nigro-fusca, elytris subopacis ; elypeo transverso, antice
obtusius rotuudato, supra concavo, nitido, sparsim baud profunde punctato, fronte dense rugoso-punctata ;
tborace subtiliter discrete punctato, linea medio-dorsali laevi, medio mediocriter dilatato margineque
crenulato ; elytris punctulatis, ecostatis, subpruinosis ; pectore fulvo-birto.
J, Pygidium mediocriter convexum, sat dense aequaliter punctato-pilosum. Venter medio canaliculatus,
opacus, breviter sat dense punctulato-setosus, suturis 2^ et 'd'^ medio antice angulatis, segmento 5" medio
granulate, apice transverso, depresso et margine medio longitudinaliter canaliculate, 6° medio concavo
granulate. Calcaria postica elongata, libera. Ungues dente mediano sat valido paullo curvato acuto,
inter dentem et basin latiores. Antennarum clava articulis 2''-7'" conjunctis baud longior.

Long. 16-17 millim.

Hab. Mexico, Puebla, Tlatingo (Salle). Two examples, both males.

Approaches the L. Integra group, but differs in the clypeus being transverse and
obtusely rounded, not semicircular, and in the stronger median tooth of the claws,
this tooth not lower than the middle. The hairs of the upper surface are also longer,
finer, and a little more erect.

31. Laclinosterna ?

Hob. Nicaeagua, Chontales (Belt).

A single example (?) of a distinct species.

200 LAMELLICOENIA.

32. Lachnosterna ?

Hob. Guatemala, Chacoj in Vera Paz (CA(5!mj)?o%). * *

Also a single female example of an apparently distinct species allied to L. setifera.

33. Lachnosterna ?

Hah. Mexico {coll. Bates). - -

A single example ( $ ) received from Paris many years ago under the name of
L. lanuginosa, Dej. (Cat.). It is very distinct in being clothed with very long shaggy
pile, but apparently belongs to the L. setifera group ; without a knowledge of the
other sex it would be useless to name and describe it.

34. Lachnosterna setidorsis.

Anguste oblonga, subovata, fulvo-castanea vel obscure fusca, pube brevi subincumbente et pilis elongatis
erectis sat dense vestita, apud elytra pilis elongatis supra totum discum sublineatim seriatis ; tborace,
scutello, elytris et pygidio subtiliter et dense punctulatis ; clypeo obtuse rotundato, sparsim baud profunde
punctato, margine integro valde elevato, fronte grosse confluenter punctata et erecte longe setosa.
S . Pygidium valde convexum, erecte pilosum, pilis longioribus intermixtis. Venter medio longitudinaliter
concavus, pilifero-punctulatus, segment© 5" apice recto, medio transversim uniplicato, 6° brevi transversim
concavo, margine anteriore inerassato et medio late interrupto. Calcaria postica libera. Ungues fere sicut
in L. setifera, dente mediano valido (apicali subsequali), basi obtuse dentata.
2 . Pygidium magis elongatum et triangulare, fere planum, cseteris sicut in (S . Venter sat dense pilifero-
punctulatus, segmento 6° convexo, polito. ■

Long. 21 millim,

Hab. CoBTA^iCA {Van Patten). Two examples only.

A distinct species, intermediate, as regards the fineness of the sculpture, between
L. setifera and L. gigantea.

35. Lachnosterna trichia.

Sat anguste oblonga, fusco-rufa, dense erecte flavi-pilosa, fronte, tborace elytrorumque basi longissime pilosis,
dense subconfluenter punctulata, parum nitida ; clypeo mediocri rotundato, margine antico pauUo elevato
et valde sinuato, supra discrete punctato ; thorace medio mediocriter dilatato, margine crenulato et longe
setoso ; scutello grosse irregulariter punctato.

c? . Pygidium convexum, breviter subrecumbenti-pilosum et sat dense erecte longipilosum. Venter medio
depressus, subsparse punetulatus, segmento 5° medio densius punctulato, 6° medio concavo marginibus vix
elevatis. Calcaria postica elongata, libera. Ungues basi pauUo dilatati, dente mediano (basi paullulum
approximate) sat valido curvato. Antennarum clava elongata, cseteris articulis conjunctis sequalis, 4''-7"'
intus acuminatis.

2 . Pygidium triangulare, fere planum, breviter pilosum absque pilis longioribus, apice Iseve politum et ante
apicem medio depressum. Ungues fere sicut in J , ad basin magis dilatati.

Long. 16-17 millim.

Hah. Guatemala, Las Mercedes (C^«mp?'ow).

Three examples only, two males and one female. .

Not very closely allied to any other Central-American species, but seems to approach
nearest L. testaceipennis, in which, however, the median (or lower) tooth of the claws

LACHNOSTEENA. 201

is a little more approximate to the apical one in both sexes. The tawny-brown colour,
dense erect yellowish-tawny pile, and dense, moderately strong punctuation, distinguish
the species.

V. Lower tooth of the claws as in IV., but situated below the middle, and inclined

towards the large basal dilatation.

36. Lachnosterna rugipennis, (Tab. XI. fig. 12, c? .)

Lachnosterna rugipennis, Schauf . Stett. ent. Zeit. 1858, p. 318 \

Eab. Mexico 1, Toxpam, Cordova {Salle), Jalapa, Misantla {Edge); Guatemala,
Purula (Champion) ; Panama, Chiriqui (Trotsch), Volcan de Chiriqui (Champion).

' A pruinose nearly glabrous species resembling L. rorulenta, but distinguished readily
by the tarsal claws being greatly dilated from the base to the lower tooth, which is
straight and at its base forms part of the dilatation. The male further differs from the
same sex of L. rorulenta and its allies by the long and freely articulated spurs of the
hind tibise ; and by the abdomen being concave in the middle, with a deeply canali-
culated sixth segment, and a closely granulated patch on the hind part of the fifth
segment. The pygidium is closely punctured and hairy in both sexes. In some
specimens of the female, especially those from Chiriqui, the elytra near the suture are
beset with very long erect tawny hairs. Most Mexican examples of the female show
no trace of these long hairs, but sometimes a few shorter similar hairs are seen near
the base and apex of the elytra. A male from Jalapa is figured.

37. Lachnosterna lissopyge,

L. rugipenni proxime affinis, forsan ejus varietas; differt pygidio castaneo polito, brevissime sparse et vix

perspicue setoso ; supra nigra, pruinosa, elytris discrete punctulatis.
Long. 22-25 millim.

Eab. NiCAEAGUA, Chontales (Belt) ; Panama, Volcan de Chiriqui (Champion).
Two males only.

38. Lachnosterna hemilissa. (Tab. XL fig. 13, ? .)

L. rugipenni affinis, sed facies valde diversa. Elougato-oblonga, nigra, capite thoraceque politis, elytris solum
pruinosis, margine piceo-rufo ; subtus cum pedibus piceo-rufa ; clypeo fere semicirculari, margine antico
medio sinuato-reflexo, capite toto grosse punctato ; tborace multo densius quam in L. rugipenni punctate ;
elytris subrugulosis et sat dense umbilicato-punctulatis, costis paullo elevatis, punotis prope apicem
griseo-setulosis ; pygidio erecte longipiloso ; tibiis intus et tarsis subtus longe pilosis ; pectore flavo-villoso.
Ungues basi dUatati, dente inferiore recto postice spectanti, juxta dilatationem sito.
S . Pygidium valde regulariter convexum. Venter sicut in L. rugipenni medio cavatus, sed segmentis medio
setosis, 5" concavo, 6° concavo et canaliculato. Calcaria postica elongata, libera. Tarsi subtus densius
pilosi. Antennarum clava valde elongata articuloque 7° intus acute producto.
$ . Pygidium triangulare vel conicum, juxta apicem planatum et utrinque bituberculatum, margine apicali
verticaliter arcuato. Venter segmento 6" magno, convexo, paucipunctato.

Long. 21-24 millim.

Eab. VKEkT£k,Ch.u\(im (Trotsch). Two examples only.
BIOL, cente.-amer., Coleopt., Vol. II. Pt. 2, April 1888. 2 DD

202 LAMELLICOENIA.

39. Lachnosterna schizorhina. (Tab. XL fig. 14, c? .)

Latius oblonga, minus convexa, nigra vel castanea, polita, supra nuda, pectore fulvo-villoso ; clypeo sat parvo,
biarcuato, antice medio profande inciso, margine reflexo, toto capite discrete punctato ; thorace medio
subangulatim dilatato, utrinque prope angulum acutum anticum late depresso, supra sat dense rotundato-
punetato, linea dorsali laevi ; elytris punctatis, costis elevatis.

cf . Pygidium parum convexum, punctatum, nudum. Yenter valde convexus, medio vage canalicuiatus, parum
punctulatus, segmento 5° postice medio declivo et dense granulate, 6° medio transversim concavo. Calcaria
postica elongata, libera. Ungues dimidio basali dilatato, dente inferiore recto parvoque juxta dilata-
tionem sito.

Long. 22-24 mUlim.

■ Hab. NiCAEAGUA, Chontales (^e/^) ; Panama, Chiriqui (Trofec^).

There are three examples only of this fine species, all males. In all three the elytra
cover the base of the pygidium, but this may be accidental. A Nicaraguan specimen
is figured.

40. Lachnosterna tenuipilis.

L. gigantece subsimilis, sed valde differt inter alia unguibus basi late dilatatis. Oblonga, castaneo-rufa, rufo-

fusca vel nigra, opaca, subtilissime et densissime punctulata et breviter subrecumbente griseo-pilosa,

" sericeo-nitens ; capite grosse subconfluenter punctato, fronte breviter setosa, clypeo transverse, extus late

rotundato, margine antico reflexo et leviter sinuato ; elytris costis obtuse elevatis ; pectore dense fulvo-

hirto.

<S . Pygidium parum convexum, breviter erecte pilosum, ante apicem margineque longe setosis. Venter medio
late canalicuiatus, dense punctulato-pilosus, segmento 5° simplici, 6° piano grosse punctato. Calcaria
postica lata, compressa, libera. Ungues basi late dilatati, dente brevi acuto proximo, versus basin inclinato,
dente apicali curvato longe libero. Antennarum clava elongata, articulis 2''-7™ conjunctis aequalis.

2 . Pygidium sicut in c? . Yenter convexus, densissime punctulato-pilosus, segmento 6° majore, convexo, grosse
punctato. Ungues dente mediano quam in c? longiore sed dilatatione basali approximate.

Long. 20-23 miUim.

Rab. Mexico, Orizaba, Teapa, Playa Vicente, Juquila (Salle) ; Guatemala, Aceituno
(Champion); Nicaeagua, Chontales (-66^^). Eight examples.

In the minute dense punctuation and fine short laid pubescence this Lachnosterna
is similar to L. gigantea, black examples being scarcely distinguishable from small
individuals of that species of the same colour. But the male sexual characters are
totally diiferent and the claws show a much closer approximation to the basal dilatation
of the middle tooth, which in the male is short, inclined towards the base, and
separated from the large broad basal tooth only by a narrow cleft.

41. Lachnosterna scissa.

Elongato-oblongo-ovata, nigra, elytris partim obscure rufescentibus, glaberrima sed leviter lacteo-opalescens,
subtus piceo-rufa ; capite lato, oculis maximis, clypeo valde transverse utrinque late rotundato, margine
antico pauUo reflexo, medio sinuato, dense punctato ; fronte sparsissime grosse punctata ; labro crasso, sicut
in SchizonycMs nonnuUis medio profunde scisso ; thorace brevi, medio dilatato, angulis obtusis, margine
baud perspicue crenato, dorso discrete punctulato, interstitiis laevibus ; scutello parum punctato ; elytris
minus dense ruguloso-punctulatis. Antennae lO-articulatse, clava S 2 brevi, articulis 6 vel 7 prsDcedentibus
multo latioribus baud productis. Yenter c? $ convexus, glaber, segmento 5° utrinque fulvo-barbato
excepto.

LACHNOSTEENA. 203

J . Pygidium convexum, passim minus grosse punctatum, nitidum. Yenter convexus, suturis baud deletis,
sparsim punctulatus ; segmento 5° apice depresso, transversim sulculato ; 6° transversim coneavo, ruguloso,
marginibus elevatis. Calcaria postica elongata, libera. Ungues valde curvati, basi dentato-dilatati et
juxta dilatationem dente angusto brevi retrorsum inclinato.

2 . Pygidium basi convexum, post medium depressum, punctatum, glabrum. Venter fere sicut in cJ , sed
segmento 5° medio apice baud depresso, 6° convexo, grosse punctato.

Long. 18 millim.

Hab. Mexico, Cordova (Salle).

42. Laclinosterna ?

Hab. Mexico, Panistlahuaca (Salle).

A single female example of a species closely resembling L. scissa, but differing in the
form of the pygidium and claws.

43. Lachnosterna angulicollis.

L. cribricoUi multo major, quoad thoracem subsimilis sed differt unguibus gracilioribus apice longe liberie
denteque parvo infra medium, dente minore basali pauUo remoto. Elongato-oblongo-ovata, baud dilatata,
testaceo-rufa, nitida, nuda ; clypeo utrinque late rotundato, apice medio breviter inciso, capite toto grosse
dense scabroso-punctato, fronte barbata ; tborace medio subangulatim dilatato, margine crenato antice
recte postice rotundatim angustato angulis obtusis, dense discrete mediocriter punctato ; elytris ruguloso-
punctatis, costis vix perspicuis ; pectore dense aureo-fulvo villoso.

cJ . Pygidium mediocriter convexum, discrete punctulatum, nudum. Yenter convexus, medio Isevi, segmento 5°
medio planato sat dense punctulato, 6" medio transverse coneavo, margine apicali late reflexo et medio
inciso, punctulato. Calcaria postica elongata, libera. Ungues basi breviter dilatati, dente inferiore infra
medium brevi acuto, dente apicali elongato. Antennarum clava elongata, cseteris articulis conjunctis
fere sequalis.

2 . Pygidium basi subconvexum, prope apicem transverse depressum, margine apicali reflexo, punctulatum,
nudum. Yenter convexus, Isevis, sparse punctulatus ; segmento 5" margine postico depresso, 6° convexo,
punctato.

Long. 18-21 millim.

Hab. Mexico, Jacale, Parada (Salle).

Var. Caput et tborax nigra, antennarum clava brevior,
Hab. Mexico, Jalapa, Las Vigas (Hoge).

Two examples of the unicolorous typical form and four of the variety.
I adopt the name the species bears in the Salle collection.

44. Lachnosterna rngulosa. (Tab. xi. fig. 15, c? .)

Ancylonycha rugulosa, Blanch. Cat. Coll. Ent. i. p. 134 \

Hab. Mexico ^ Tuxtla, Orizaba (Salle), Jalapa (Hoge) ; Guatemala, Purula (Cham-
pion).

A metallic species, varying from brassy-black or brown to dark brassy-green and rich
coppery-brown. It is almost glabrous above, having only a scanty clothing of short
subrecumbent grey hairs, mostly arranged in rows on the elytra. The sculpture is

2DD2

204 LAMELLICORNIA.

coarse ; the punctures moderately close, and lying in very irregular rugae on the thorax,
the elytra entirely rugose-punctate ; the scutellum is punctured, with a broad smooth
space in the middle. The labrum is thick and deeply and sharply cleft as in L. scissa.
The clypeus is transverse quadrate, with a deep notch in the middle of the front margin,
and each side from the notch to the base forming a nearly semicircular curve. Both
the fore and hind angles of the thorax are acute. The ventral segments 1-4 have
on each lateral suture a pencil of long golden-yellow hairs. The following are the
sexual differences : —

(S . Pygidium vix convexum, valde insequale, grossissime rugoso-punctatum, glabrum, margine apicali breviter
setoso. Venter convexus, medio laevissimus, lateribus parce setifero-punctulatis ; segmento 5° apice trans-
versim depresso, 6° transversim concavo, Isevi. Calearia postica elongata, libera. Ungues basi obtuse
dentati, dente inferiore mediano mediocri acuto, a dente basali paullo distant!. Antennarum clava parva.

2 . Pygidium basi bi- apice uni-tuberosum, medio transverse depressum. Venter convexus, segmento 5° apice
eimplici, 6° convexo, apice transverse sulcato. Ungues sicut in c? .

Notwithstanding its very different facies, numerous similarities of structure show
that this species is closely allied to L. scissa.
A male from Tuxtla is figured.

45. Lachnosterna submetallica.

L. rugulosce proximo affinis ; difFert supra densius et subtilius punctata et brevissime squamulosa. ^neo- vel
cuprascenti-fusca, femoribus nitidius aeneis ; supra densissime punctulata, in punctis squamula angusta
incumbente griseo-ochracea ; clypeo sicut in L. rugulosa ; thoracis disco anteriore maculis duabus politis-
simis ; scutello dense ruguloso-punctato ; ventris segmentis 2°-4^ ( c? ? ) medio callis duobus validis.
Antennae in utroque sexu clava parva, articulis 6" et 7° latis, 3°-5™ paullulum elongatis.

<y. Pygidium fere planum, scabrosum, grosse incumbente ochraceo-squamosum, medio caUo angusto laevi.
Venter medio Isevis, politus ; segmento 5° fere toto ocbraceo-squamuloso, apice medio depresso, 6° medio
transverse depresso, marginibus parum elevatis. Calearia postica elongata, libera. Ungues basi lati,
dente parvo acuto basali, dente inferiore apud medium sat elongate acuto.

$ . Pygidium sicut in (S , sed squamis tenuioribus. Venter sicut in c? , segmentis 5° et 6" convexis exceptis.
Ungues dente inferiore longitudine denti apicali eequali.

Long. 16-20 miUim.

ffab. Guatemala, Senahu and Panima in Vera Paz {Champion). *

46. Lachnosterna ?

Hah. Mexico, Orizaba (iSa^^e).

A single example of doubtful sex. It appears to represent a distinct species allied
to the two preceding.

VI. Lower tooth of the claws smaller and straight or little inclined^ situated near
to or below the middle. Base of claw generally without dilatation.

1. Antennce 10-jointed.

47. Lachnosterna euryaspis.

L. scissce similis, sed valde differt quoad clypeum, ungues etc. Sat anguste oblonga, subnitida, glabra, supra

EACHN0STEE1S"A. 205

castaneo-fusca, subtus cum pedibus antennisque nifo-fulva, nitida, ventre obscuriore ; clypeo valde trans-
verso, lateribus parallelis antice late rotundatis, margine antico leviter sinnato-reflexo, supra confluenter
punctato, fronte sparsius sed baud grossius punctata ; thorace ante medium dilatato, lateribus postice longe
parallelis, angulis posticis rectis, supra subtiliter disperse punctulato ; elytris coriaceis, baud dense punctato-
rugosis, costis perspicuis. Labrum normale.

? • Pygidium dimidio basali convexo, apicali depresso parce punctato, rugulosum. Venter convexus, glaber,
impunctatus, segmento 5° lateribus punctulato-pilosis segmentoque 6° convexo punctato exceptis. Ungues
basi dentato-dilatati, dente inferiore infra medium (prope dilatationem) brevi, robusto, curvato.

Long. 18 millim.

Hob. Mexico, San Antonio de Arriba {Salle), Las Vigas (Edge).

Although I have seen one sex and two examples only of this species, its curious
relationship to L. scissa, and the facility with which it may be recognized, justify its
being described.

48. Lachnosterna molopia. (Tab. xi. fig. 16, 6 .)

Elongato-oblongo-ovata, glabra, nitida, castaneo-nigra, subtus cum pedibus antennisque fulvo-castanea, sat
disperse punctulata; clypeo minus transverso nee late rotundato, trapezoidali, angulis rotundatis, margine
antico leviter sinuate et reflexo, confluenter punctulato, fronte minus dense, discrete punctulata ; tborace
ante medium dilatato, postice lateribus parallelis subsinuatis, angulis posticis subacutis, supra discrete
punctato, interstitiis planis politis foveaque rotunda utrinque versus angulos posticos ; scutello punctulato,
epatio mediano Isevi. Labrum late arcuatim emarginatum. Antennae utroque sexu clava parva, c? pauUo
longiore, articulis 6° et 7° intus dilatatis. Venter segmentis 2°-5'" medio utrinque transverse callosis, callis
plus minusve elevatis. Ungues elongati, basi brevissime dentato-dilatati, dente inferiore parvo, acuto,
recte exstante, infra vel juxta medium site.

(S . Pygidium convexum, glabrum, subconfluenter punctatum, fovea rotunda utrinque prope basin, margine
apicali breviter fimbriate. Venter medio glaber, Isevis, segmento 5° dimidio apicali depresso, 6° transverse
convexo, Isevi, apice lato transversim sulcato, punctato, margineque apicali medio sinuate. Calcaria postica
elongata, libera.

cJ var. Segmentum ventrale 6™ transverse depressum, margine postico pauUo elevato.

2 . Pygidium juxta basin solum convexum, postice concavo-depressum, apice pauUo reflexum, punctato-rugu-
losum, glabrum, basi sicut in c? bifoveatum. Venter sicut in c? , differt solum segmento 6° magno, gibboso,
apice baud sulcato margineque apicali integro, basi Isevi, apice grosse punctato.

Long. 17-18 millim.

Eab. Mexico, Ciudad in Durango 8100 feet [Forrer, Edge).

Very similar in form and colours and in important structural characters to
L. euryaspis ; the curious wheals on the ventral segment indicate an affinity also with
L. submetallica. The totally different form of clypeus in these three species seems to
show that this is a very variable feature. It resembles in form, colour, and other
characters the North-American L.fusca and its allies ; but differs from all the species
of the L.fusca group by the lower spur ( S ) being articulated, not connate. The male
variety (which is apparently much less common than what I take to be the typical form)
is so different that we seem here to have a case of dimorphism in this sex ; but when a
large series is examined intermediate states are seen to exist. In one male example
the apical ventral segment is nearly as gibbous as in the female, and it is only the
transverse depression at its apex and the longer antennal club which enable one to
decide that it is a male.

206 LAMELLICOENIA.

49. Lachnosterna segregans.

L. molopicB afflnissima, differt solum statura minore, clypeo transverse utrinque late rotundato, margine antico

sat late reflexo, medio distincte sinuato, et antennis c? longissime clavatis.
Long. 14-17 millim.

Mab. Mexico, Ciudad in Durango {Edge). Three examples, all males.

Kesembles the smaller examples of i. molopia, chestnut-coloured and glabrous above,
fulvo-testaceous beneath; the elytra more strongly punctate-rugulose. The form of
the clypeus is different, being short, rounded on each side, and rather strongly sinuate
anteriorly, instead of being rather long and obtusely trapezoidal as in L. molopia. The
callosities on the middle ventral segments are feeble or obsolete ; the sixth segment
(male) is formed precisely as in the male variety of Z. molopia. The pygidium is coarsely
rugose-punctate as in L. molopia ; but the thorax differs in wanting the two large
postero-discoidal foveee. The lower tooth of the tarsal claws is very small, outstanding,
and situated about the middle of the claw. The antennal club is greatly elongated,
and longer than the rest of the joints taken together.

60. Lachnosterna divertens.

L. molopice quam proxime affinis ; diflFert solum statura angustiore (anguste oblonga sive cjlindrica), elypeo

adhuc magis elongato, semiovato, perparum vel nuUomodo sinuato et antennis longissime clavatis.
Long. ITmiUim.

Hab. Mexico, Ciudad and Eefugio in Durango (Edge).

Three examples, males. The chief character which necessitates the separation of
this form from L. molopia is (as in L. segregans) the great length of the antennal club
in the male. It differs from both these species in its narrow, cylindrical form, and
in the shape of the clypeus — narrowed anteriorly as in L. molopia, but having
no trace of angles, and gradually rounded to the front and feebly or not at all
notched on its anterior edge, which is scarcely reflexed ; both clypeus and forehead are
more minutely and densely punctured than in L. molopia. The ventral callosities are
feeble or entirely obsolete. The pygidium offers no difference, and the sixth ventral
segment is formed as in the male variety of L. molopia. The tooth of the claw is short
as in L. molopia, but situated a little higher {i. e. towards the apex) than the middle
of the claw ; it varies a little in position, as it does in L. molopia.

The antennal club varies in length, but in the examples in which it is shortest it
equals in length all the remaining joints together. Judging from this and other
evidences of variability or plasticity in this interesting group, I think that we have
here a case of an incipient species in process of segregation.

51. Lachnosterna setipennis.

I. molopim quoque affinis, sed differt statura angustiore, cylindrica, elytrisque toto griseo-setosis, setis erectis
parum densis. Nigra vel castaneo-fusca, minus nitida; clypeo semicirculari margineque leviter reflexo

LACKNOSTEENA. 207

integro, toto capite sequaliter dense subconfluenter punctulato ; thorace sicut in L. molopia ante medium
dilatato et postice lateribus parallelis, angulis posticis subacutis, marginibus millomodo crenatis, supra sat
dense punctulato, foveis duabus mediocribus ; elytris punctulatis et rugosis, costis elevatis. Ungues dente
inferiore paullo infra medium, parvo sed curvato.

cf . Pygidium convexum, grosse confluenter punctatum, glabrum. Venter leviter callosus, medio glaber, parum
punctulatus ; segniento 5° apice medio transversim depresso, 6° transversim depresso rugoso. Calcaria
postica elongata, libera. Antennarum elava elongata, articulis 2°-7°' conjunctis paullo longior.

2 . Pygidium convexum^ apice leviter depressum, grosse confluenter punctatum, glabrum. Venter medio
glaber, sparse punctatus, segmentis 5° apice et 6° (piano) toto densius punctatis.

Long. 18-19 millim.

ffab. Mexico, Ciudad in Durango {Edge, Forrer).

Three examples only. Evidently also an incipient species, but somewhat further
segregated than L. segregans and L. divertens from L. molo;pia.

52. Laclmosterna ?

Eah. Mexico, near the city (Flohr).

A single example (female) of a small species distinct from all the foregoing.

53. Lachnosterna ?

Eab. Mexico, Oaxaca {Edge).

A single female example, similar to, but specifically distinct from, the preceding.

54. Lachnosterna ?

Eah. Mexico, near the city {Flohr).

Also a single female only, whose affinities are not determinable.

65. Lachnosterna ?

Eah. Mexico, Matamoros Izucar, Puebla {Edge).

A single female example, apparently of a distinct species, allied to L. molopia.

56. Lachnosterna nigerrima. (Tab. XL fig. 17, 6 .)

Breviter ovata, omnino nigerrima, glabra, nitida, pectore fulvo-viUoso ; capite lato, toto dense subconfluenter
punctate, clypeo subsemicirculari, antice late obtuso et sinuate, paullo reflexo; thorace medio sat late
rotundato-dilatato, angulis anticis obtusis, posticis rectis, margine crenato, supra discrete punctulato, plaga
oblonga dorsali Iffivi ; elytris (praeeipue $ ) paullo ampliatis, coriaceis, discrete punctulatis. Venter breviter
sparsissime griseo-setosus.

(S . Pygidium paullo convexum, disperse punctulatum, glabrum. Venter medio late depressus ; segmento 5°
medio postice depresso et aspere punctulato, 6° basi convexo, laevi, apice depresso punctate. Calcaria
postica libera. Ungues dente parvo, acuto, baud procul a basi site. Antennarum clava parum elongata,
articulis 2°-7™ conjunctis vix sequaKs.

cf var. Segmentum ventrale 6™ transverse depressum.

208 LAMELLICOENIA.

2 . Pygidium planum, sparsim punctulatum. Yenter convexus, segmentis 5° et 6° (piano vel paullo convexo)

paullo densius punctnlatis. XJngues sicut in c? •
Long. 13-20 miUim.

Hah. Mexico, La Piedad in Michoacan [Salle), Tupataro in Guanajuato (E'oge).

Named " Eugastra, sp.," in the Salle collection. It approaches Eugastra and the
section to which L. farcta belongs (Group II. of Leconte) in the metastemum being
somewhat abbreviated, but differs in being winged in both sexes. It is a Lachnosterna
allied to L. molo'pia, with which it has in common the two forms of male. The ligular
part of the mentum has a deep notch, and the mandibles and maxillae are very robust.
In all the numerous examples the colour of the body, antennae, palpi, and legs is deep
black.

An example from Tupataro is figured.

67. Lachnosterna Integra.

Melolontha Integra, Say, Bost. Journ. Nat. Hist. i. p. 180 (1835) ^; Complete Writings, ii. p. 654

(nee Leconte).
? Ancylonycha stipitalis, Blanch. Cat. Coll. Ent. i. p. 136 *.

Eab. Mexico ^ ^, near the city {Flohr), Jalapa (Edge).

Distinguished from numerous allied species, having a similar entire semicircular
clypeus &c., by its clearer reddish-tawny colour, with very rarely a trace of pruinosity
and that on the elytra only ; by the extremely short antennal joints 3-7, with greatly
elongated club in the male (the club being longer than all the rest of the antennae) ;
and by the concave sixth ventral segment in the male having a narrow anterior rim.
The forehead, thorax, and base of the elytra are clothed with very long hairs, and the
elytra have, besides, a short incumbent grey bristle in each puncture. The fifth ventral
segment in the male has a median, densely granulated, and brown oval patch. The
general form is rather short oblong-ovate. This species varies in size from 14 to
17millim.

68. Lachnosterna anodentata.

L. integrcB (Say) proxime affinis. Colore et pnbescentia hand diversa. Antennarum clava S autem valde
elongata, cseteris articulis conjunctis longior. Differt ungaibus basi baud dentatis, parum obtuse dilatatis,
tborace antice longe sinuatim angustato, angulis anticis acutis, et segmento 6° ventrali margine anteriore
medio dentato-produeto.

Long. 14—17 millim.

Hah. Mexico, Etla, Parada, Peras {Salle), Mexico city, Jalapa (Edge).

The colour is reddish-tawny, as in L. Integra, with only a slight trace of pruinosity,
in some examples, on the elytra. The semicircular concave clypeus and pubescence
also offer no difference; but the general form is rather more oblong and narrower.
The antennae of the males have a similarly long pale club, but the joints 3-7 are
scarcely so short as in L. Integra. Two female examples, labelled L. stipitalis,

LACHNOSTEENA. 209

Blanch., from Toluca, in the Salle collection, may possibly belong to this species, but
they differ considerably.

59. Lachnosterna rubella.

L. integrce (Say) valde aiflnis et forsan ejus varietas geographica ; differt multo minore, supra densius puncbi-
lata, prsecipue elytris densissime ruguloso-punctatis. Breviter ovata, fulvo-rufa (raro castanea), breviter
setosa, fronte, thorace, elytrorum basi et pygidio longissime birtis ; capite baud semicirculari, magia
transverse, utrinque latins rotundato, supra concavo, margine reilexo integro. Ungues dente parvo acuto
post medium, basi baud dilatati.

d" . Venter sicut in L. anodentata, eegmento 6° margine antico medio dilatato bidentato, dentibus plenimque
vix elevatis vel sub margine segmenti 5' occultis. Antennarum clava caeteris artieulis conjunctis multo
longior.

Long. 11-15 millim.

Ilab. Mexico, Toluca, Amecameca in Morelos, Pachuca in Hidalgo (Edge).

Among the very numerous examples examined of this insect there are a few males in
which the sixth ventral segment scarcely differs from that of L. Integra; in all,
however, of both sexes, the shape of the clypeus is different, and this (in addition to the
smaller size and much closer rugulose punctuation of the elytra, on which there is no
trace of pruinosity) renders it necessary to distinguish the form by a separate name and
description. The four examples of L. anodentata are larger and more elongate-oblong
in form.

60. Lachnosterna misteca. (Tab. XI. fig. 18, d var.)

L. integrce (Say) valde afflnis, differt prsecipue antennarum clava in S miilto minore cseteris artieulis conjunctis
breviore ; capite majore (clypeo semicirculari margine integro), colore supra obscuriore subcastaneo,
pruinoso, punctis thoracis sparsioribus.

c? ? . Pygidium parum convexum, punctulato-setiferum, ante apicem et ad marginem apicalem setis nonnuUis
multo longioribus.

Long. 15-20 millim.

Hab. Mexico, Etla, Juquila, Oaxaca (Salle), Jalapa, Las Vigas, Mexico city (Edge).

Var. c? . Venter sicut in L. Integra S , medio convexus, Isevis, plus minusve canaliculatus, segmento 5° medio
plaga obscuriore dense granulata, apice depresso, 6" margine anteriore depresso nee producto.

Eah. Mexico, Puebla (Salle), Las Vigas (Edge).

I adopt the name L. misteca, Chevr. (MS.), given to the species in the Salle
collection. An example from Paebla of the male variety is figured.

61. Lachnosterna longipilosa.

L. integrcB et L. mistecm affinis, sed Phytalo pruinoso similior; differt S ventris segmento 5° margine anteriore
elevato, dilatato, medio inciso etc. Nigra, piceo-nigra vel fusco-castanea, pruinosa, elytris setis griseis
brevissimis, fronte, tborace antice elytrisque basi et juxta suturam longissime pilosis ; clypeo sicut in
L. integra, sed margine antico minus elevato et distincte sinuato, fronte grosse scabrosa ; tborace medio
sat angulatim dilatato, antice recte angustato, angulis anticis acutis, margine grosse crenato, disperse
punctate, punctis breviter griseo-setiferis, punctis majoribus pilis valde elongatis emittentibus ; pectore
fulvo-cinereo villoso ; abdomine lateribus sericeo-pruinosis, antennis pedibusque testaceo-rufis. Ungues
versus basin breviter ( 5 longius robustiusque) recte acute dentati, basi parum dilatati.

BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, April 1888. 2 EE

210 LAMELLICOENIA.

cJ . Pygidium versus apicem altius convexum, punctulato-setulosum, prope apicem et ad marginem apicalem
setis multo longioribus obsitum. Venter medio laevis, politus, canaliculatus ; segmento 5" medio area
depressa, opaca, dense granulata; 6" transversim concavo, margine anteriore'elevato-dilatato, medio inciso.
Calcaria postica elongata, libera. Antennarum clava brevis, articulis 2°-6" conjunctis hand longior.

$ . Pygidium triangulare, setis et punctis sicut in d' . Venter convexus, medio politus, sparsim setifero-punc-
tatus ; segmento 5" prsecedente dimidio longiore.

Long. ] 7-19 millim.

Hah. Mexico, Tepansacualco, Peras, Guanajuato (Salle)^ Mexico city {Flohr), Jalapa,
(Hogs).

Named L. longipilosa^ Keiche (MS.), in the Salle collection. The species resembles
Phytalus ^ruinosus and L, rorulentus, but the form of the claws and the spurs of the
posterior tibiae are quite different.

62. Lachnosterna brevidens.

L. integrce (Say) affinis, sed differt unguibus dente inferiore parvo prope basin sito. Anguste oblonga, gracillima,
fulvo-testacea, subnitida, brevissime griseo-setosa, fronte, tborace antice elytrisque basi pilis longioribus
erectis obsitis ; clypeo semicirculari valde concavo, sparsim punctato, fronte grosse scabrosa ; thorace medio
parum dilatato, margine subcrenulato, sequaliter punctulato ; elytris discrete punctulatis.
cJ. Pygidium mediocriter convexum, nitidum, punctatum, parce breviter setosum. • Venter medio parum
depressus, sat dense aspere punctulatus et setosus, suturis deletis ; segmento 5° toto medio densissime
granulate et fusco, 6° vix concavo medio granulate et setoso. Calcaria postica elongata, libera. Ungues
graciles, prope basin denticulo parvo, basi ipso leviter dilatato. Antennarum clava valde elongata, articulis
l°-7™ conjunctis longior, articulis 4''-7^ intus acute productis.

Long. 14-15 millim.

Rab. Mexico [Salle, ex coll. Sturm). Two examples, males.

Bears in the Salle collection the name L. ohesa, Sturm (MS.), which I cannot adopt,
as it has been used for a described species by Dr. Leconte.

63. Lachnosterna ?

Hah. Mexico, Zimapan in Hidalgo (Hoge).

A single example, sex uncertain, of a very small and distinct species of the L. incerta
group.

64. Lachnosterna ?

Hah. Mexico, Guajuco in Nuevo Leon [Br. Palmer).

A single example of a species allied to the preceding.

65. Lachnosterna glabricula.

Lachnosterna glabricula, Lee. Journ. Ae. Phil. ser. 2, iii. p. 260 \

Hah. NoETH America, Kansas i, Texas. — Mexico, Santa Clara in Chihuahua (Hoge).

One example (female) agreeing well with Leconte's description and with examples from
Texas, with which I have compared it. It is distinguishable from similar unicolorous
testaceous species from Mexico by the submarginal costa of the elytra.

LACHNOSTEENA. 211

66. Lachnosterna microdon.

Oblonga, versus apicem dilatata, piceo-nigra ; corpore subtus, femoribus et antennis piceo- vel testaceo-rufis ;

fronte thoraceque longe hirsutis, elytris brevissime griseo-setosis ; clypeo transverso, quadrato, angulis

rotuBdatis, margine antico alte reflexo, medio leviter sinuato, toto capite dense punctato ; thorace post

medium mediocriter dilatato, supra et elytris discrete punctulatis. Antennae 10-articulatse, articulis

S^-S"" subovalilius, 6° et 7° baud subito breviores.
cJ . Pygidium mediocriter convexum, sparsim setifero-punctatum. Yenter medio depresso-canaliculatus, parce
- setulosus, politus, segmento 6" brevi medio transversim planato sublsevi. Calcaria postica gracilia, libera.

Ungues basi gradatim latiores prope basin brevissime dentati. Antennarum clava articulis 2°-7"' con-

junctis a^qualis.
2 ' Pygidium planissimum, sparsim setifero-punctatum. Ungues basi gradatim latiores, dente longe ante basin

quam in c? pauUo majore, hamato.
Long. 14 millim.

Hah. Mexico, Peras (Salle). Two examples only.

2. Antennoe '^-jointed.

67. Lachnosterna porodera.

Oblongo-ovata, testaceo- vel castaneo-rufa, fronte tboraceque antice erecte hirsutis, elytris leviter pruinosis ;
clypeo sat parvo, rotundato, margine elevato, medio breviter sinuato, dense punctato, fronte brevi convexa,
grosse scabrosa, postice transversim obtuse carinato, occipite nitido punctulato ; tborace sat angusto, ante
medium valde dilatatp margine crenato, angulis anticis productis, acutis, posticis subrectis, antice anguste
marginato, disco anteriore grosse rotundato-punctato, postice et lateribus sparse rotundato-punctulato
spatiis Isevibus ; scutello subtiliter sparse annulato-punctulato ; elytris punctulatis ; pectore cinereo-fulvo
villoso. Antennae lO-arfciculatae, articulis 2°-Qi^ conjunctis quam scapus vix longioribus.

(S . Pygidium parum convexum, annulato-punctatum, erecte hirsutum, margine apicali reflexo, longe setoso.
Venter medio concavus et canaliculatus sublsevis, segmento 5° medio basi plaga asperato-punctulata et
setosa, 6° transversim concave, longius setoso. Calcaria postica libera. Ungues versus basin gradatim
paullo latiores, dente recto sat valido prope medium. Antennarum clava articulis 2°-6™ conjunctis aequalis.

$ . Pygidium sicut in (S . Venter segmentis 5° (basi excepta) et 6° sat dense setifero-punctatis.

Long. 15-18 millim.

Hah. Mexico, Guanajuato, Peras (Salle).
Five examples.

68. Lachnosterna multipora, (Tab. xi. fig. 19, d .)

L. poroderce proximo affinis ; difFert thorace medio pruinoso, usque ad basin poroso et longe hirsute, elytris

dense punctulatis pygidioque densius annulato-punctulato.
S . Venter segmentis 2°-4" medio dense, 5° densissime fulvo-hirsutis, 6° transversim concavo. Ungues et

antennae sicut in L. porodera.
2 . Ventris segmento 5° creberrime subconfluenter punctato, dense hirsuto.
Long. 14-16 millim.

Hah. Guatemala, Capetillo (Cham;pion).
Eight examples.

69. Lachnosterna ?

Hah. Mexico, Jalapa (coll. Bates).

A single example of a much smaller species, allied to L. porodera.

2EE 2

212 LAMELLICOENIA.

3. Antennce ^-jointed.
(? Gen. Anonetus, Erichsonj Ins. Deutschl, iii. p. 658.)

70. Lachnosterna mexicana ? (Tab. XI. fig. 20, d .)

Ancylonycha mexicana, Blancii. Cat. Coll. Ent. i. p. 138 ' ?
Hab. Mexico, Vera Cruz i, Jalapa, Oaxaca (Hoge).

Five examples from Herr Hoge's collection agree fairly well with Blanchard's
description, with the exception of the number of antennal joints. Blanchard placed his
species in the 9-jointed division of the genus, but possibly in mistake (other inaccuracies
of the same character by this author having been since corrected by Lacordaire). We
cannot, however, be certain of this, and the identification of this interesting little species
must remain in doubt. I will add to Blanchard's description that the tarsal claws are
slender, slightly and gradually broadened to the base, without basal dilatation, and
furnished with a short, sharpened tooth near or a little below the middle. This
character seems to forbid the association of X. mexicana with Erichson's genus Anonetus
(a genus without described species), in which the claws, as I have already stated under
Phytalus poculifer, have a quadrate tooth or dilatation at the base. The mandibles
are invisible in repose in some examples, but quite visible along their external edge,
and at the tips, in others. The species has a structural peculiarity in the width of the
hind coxae, especially at their junction, where they cover the usually visible first ventral
segment, and in some examples also the second.

All the examples appear to be of one sex, apparently male, the sixth ventral segment
being plane or slightly concave, and with the fifth punctulate and clothed with
stiff hairs.

The following species are represented by single specimens only, in some cases
imperfect, and cannot with any advantage be named or located in the above classifi-
cation of the genus.

71. Lachnosterna ?

Hob. Mexico, Parada {Salle).

72. Lachnosterna

Hah. Mexico, Peras (Salle).

73. Lachnosterna

Hah. Beitish Honduras, R Sarstoon {Blancaneaux).

74. Lachnosterna ?

Hah. Mexico, Toluca {Hoge).

LACHNOSTERlSrA. 213

75. Lachnosterna ?

Hah, Mexico, Zimapan {Hoge).

76. Lachnosterna ?

Hab. Mexico, Lagos in Aguas Calientes (Hoge).

77. Lachnosterna ?

Hab. Mexico, Las Vigas (Hoge).

78. Lachnosterna

Hab. Guatemala, Cubulco in Vera Paz (Champion).

79. Lachnosterna ?

Hab. Panama, Chiriqui (Bibbe).

80. Lachnosterna ?

Hab. Guatemala, Calderas (Champion).

81. Lachnosterna

Hab. Mexico, Jalapa (coll. Bates).

82. Lachnosterna

Hab. Mexico (coll. Bates).

83. Lachnosterna

Hab. Mexico (coll. Bates).

84. Lachnosterna

Hab. Mexico, Guerrero (Harford, in coll. Bates).

85. Lachnosterna ?

Hab. Guatemala (coll. Bates).

The following species I have not succeeded in determining from the descriptions : —

86. Lachnosterna laticeps.

Ancylonycha laticeps, Blanch. Cat. Coll. Ent. i. p. 136 \
Hab. Mexico ^

214 LAMELLICOENIA.

87. Laclinosterna cylindrica.

Trichestes cylindrica, Burm. Handb. der Ent. iv. 2, p. 361 ^
Bab. Mexico or West Indies ^.

EUGASTRA.

Eugastra, Leconte, Journ. Acad. Nat. Sc. Phil. ser. 2, iii. p. 233 (1856).

Leconte founded this genus chiefly on the deep emargination of the ligula, a
character which Dr. Horn has since proved, by the dissection of many species of
Lachnosterna, to have no generic value. But Leconte added the characters : — both
sexes apterous, the body above and beneath glabrous. These features, combined with
the extremely short metasternum and the subterranean or epigeous habits of the species,
seem to mark out a definite modification of the Lachnosterna type worthy of generic
distinction.

The genus Tostegoptey^a^ Blanchard, founded on L. lanceolata. Say, is allied to
Eugastra, but diflers in the female only being apterous and having a short metasternum
destitute of villosity, the male being in these respects a typical Lachnosterna. It forms
a transition to the Lachnosternw through L. nigerrima (Bates), in which the male has
a villose metasternum of the normal length, and the female a shortened and scantily
pilose metasternum, but in which both sexes are winged. Tostegoptera is not admitted
as distinct from Lachnosterna by Leconte ; in which view he appears to me to have more
justification than he has in including L. cequalis and L.farcta in the latter genus — they
are both much more nearly related to JEugastra; L.farcta (the only one I have been
able to examine) at least having a very short and glabrous metasternum, though winged
in both sexes.

Leconte admits two Texan species only as belonging to the genus, which cannot
satisfactorily be distinguished from the Old-World Geotrogus.

1. Eugastra cribrosa. (Tab. XL fig. 21.)

Tostegoptera cribrosa, Lee. Proc. Ac. Phil. vi. p. 231 \
Eugastra cribrosa, Lee. Journ. Ac. Phil. ser. 2, iii. p. 234*.

Eab. NoETH jiMEEiCA, Texas ^ ^. — Mexico, Monterey in Nuevo Leon (Edge). One
example.

Subfam. MELOLOJsTHLNJE.

POLYPHYLLA.

Polyphylla, Harris, Ins. of Massachusetts^ p. 30 (1842) ; Lacordaire, Gen. Col. iii, p. 294 (1856) ;
Leconte, Journ. Acad. Nat. Sc. Phil. ser. 2, iii. p. 228 (1856) ; Horn, Trans. Am. Ent. Soc. ix.
p. 73 (1881) ; Kraatz, Deutsch. ent. Zeit. xxvi. p. 134.

Eighteen species of this fine and well-known genus have been described. It is

POLTPHYLLA. 215

peculiar to the warmer temperate regions of the northern hemisphere, in the New
World reaching as far south as Guatemala, and in Asia, North-western India.

Four species inhabit our region, and another (P. cavifrons, Lee.) is recorded from
the vicinity of our northern boundary in Arizona.

1. Polyphylla decem-lineata. (Tab. XI. fig. 22, s .)

Melolontha decemlineata, Say, Journ. Ac. Phil. iii. p. 246 (1824) ^ ; Complete Writings, ii. p. 145 ;
Lee. Journ. Ac. Phil. ser. 2, iii. p. 229 ; Horn, Trans. Am. Ent. Soc. ix. p. 74 ^

Hah. North America, Missouri i, westward from Colorado to California 2. — Mexico,
Guanajuato [Salle), Mexico city, Durango city (Hoge), San Luis Potosi (Dr. Palmer).

Mexican examples do not differ from the Californian form, except in their generally
larger size. A male example from Guanajuato is figured.

2. Polyphylla petiti. (Tab. XL fig. 23, c? .)

Melolontha petitii, Gruer. Icon. Regne Anim,^ Ins. texte, p. 97 (1830) \

Polyphylla leucogramma, Blanch. Cat. Coll. Ent. i. p. 161 (1850) ^ ; Burm. Handb. der Ent. iv. 2,
p. 406.

Hab. Mexico ^ ^, Orizaba [Salle), Jalapa, Guadalajara, Mexico city, Durango city
(Edge); Guatemala, Purula [Champion).

We figure a male specimen from Guadalajara.

3. Polyphylla hammondi. (Tab. XL fig. 24, d .)

Polyphylla hammondi, Leconte, Journ. Ac. Phil. ser. 2, iii. p. 228 ; Horn, Trans. Am. Ent. Soc.

ix. p. 73 '.
Polyphylla suhvittata, Lee. 1. c. ; Horn, 1. c. [hammondi, var.).

Hah. North America, Kansas and Northern Texas i. — Mexico, Villa Lerdo in
Durango [Edge).

Distinguished readily by the tridentate anterior tibiae of the male.
A male individual from Villa Lerdo is figured.

4. Polyphylla conspersa.

Polyphylla conspersa, Burm. Handb. der Ent. iv. 2, p. 407 \
Eab. Mexico ^

A small and, judging from the description, very distinct species, which I have
not seen.

216 LAMELLICOENIA.

Fam. RTJTELID^.

Subfam. ANOMALIN^.

The chief distinguishing character of this subfamily lies in the deflected labrum, the
anterior middle part of which curves downwards so that the front edge is turned under-
neath towards the roof of the mouth. Hence, without dissection, the basal part of the
organ, more or less sinuated in front, is alone visible. It is incorrect to term this
peculiar conformation " labrum emarginatum " as Erichson and after him all the chief
writers on the Lamellicornia have done, the middle of the true front edge of the labrum
being obtusely rounded and sometimes even produced, not emarginated. This difference
is important inasmuch as it lessens the divergence between the subfamilies Anomalinae
and the Geniatinse, with their allies the Anoplognathinse and the neighbouring groups,
two great series of forms which have hitherto been widely separated in the current
classifications. . ■

PHYLLOPERTHA.

Phyllopertha, Stephens, 111. Brit. Ent., Mandib. iii. p. 223 (1830) ; Erichson_, Naturgesch. d. Ins.

Deutschl. iii. i. p. 627; Lacordaire, Gen. Col. iii. p. 327; Burmeister, Handb. der Ent. iv. 2,

p. 512 {Anomala pars, olim, Handb. iv. 1_, p. 239).
Anisoplia (Latreille, Castelnau), Fairmaire, Ann. Soc. Ent. Fr. 3870, p. 378.

Although this genus is generally adopted it has never been satisfactorily defined as
distinct from Anomala, and many species have, in consequence, been referred to it which
have little in common with the typical P. horticola. The two Mexican species included
in Phyllopertha by Blanchard appear to me decidedly not to belong to it, one being an
Anomala, and the other an Epectinaspis. The following species is a Phyllopertha in
its general form and the slenderness of its hind legs in all their parts, and in the loose
villosity of the under surface of the body ; but it differs greatly from Phyllopertha in
the mouth-structure, the mandibles being reduced to very narrow flat tapering blades,
lying closely to the roof of the mouth, and the maxillee having two teeth only. Abrupt
degradations of mouth-structure occur, as I shall have to show, also in a group of
Anomalce widely different from Phyllopertha, and they cannot well be treated as generic.

1. Phyllopertha tolucana. (Tab. Xll. fig. l, d .)

Brevius ovata, capite thoraeeque nitide seneis vel cupreis, griseo-hirsutis, elytris pallide fulvo-testaceis, striis et
interstitiis alternis (plus minusve) fuscis ; subtus cum pedibus a9nescenti-nigra, griseo-villosa ; clypeo parvo,
Bubsemicirculari (juxta basin dilatato), concavo, grosse punctato ; fronte et vertice umbilicato-punctatis
purictisque minoribus intermixtis ; antennis et palpis nigris ; thorace elytris multo angustiore, pauEo ante
medium angulato-dilatato, angulis anticis et posticis subreotis, passim a^qualiter sat distanter umbilicato-
punctulato, margine basali integro ; scutello late scutiformi, seneo polito, parce punctato ; elytris punctato-
striatis, interstitiis 3°, 5° et 7° convexis, leevibus, casteris punctato-rugosis, Pygidium seneum vel nigro-
seneum, politissimum, parce punctatum, longe hirsutum. Mesosternum tuber culiforme. Mandibula tenuiter
laminiformia, acuminata, inermia ; maxilla apice bidentatae.

PHTLLOPERTHA. — ANOMALA. 21T

(J . Antennarum clava valde elongata, articulis 5" et 6° intus acute et longe productis. Tarsi anteriores ungue

majore deflecto, medio angulatim dilatato, supra tenuissime dentato.
Long. 8 millim. d* $ .

Hab. Mexico, Toluca {Hbge).

A large series of examples, nearly all males. The labrum in this species is small and
depressed in the middle, with the front margin strongly deflected and in the middle
slightly produced. The mentum is very much less flattened in the middle than is usual
in the subfamily.

ANOMALA.

Anomala, Samouelle, Entom. Compendium, i. p. 191 (1819) ; Erichson, Naturgesch. der Ins.
Deutsch. iii. p. 616 (1848) ; Burmeister, Handb. der Ent. iv. 1, p. 230 (1844).

Upwards of 300 species of this well-known genus have been described. It is
abundantly represented in the tropical and north temperate zones of both continents,
but does not appear to extend to the south temperate zone or to Australia and the
Oceanic Islands.

I. Tard quatuor anteriores unguihus Jissis^ dente superiore in 6 haud multo hremore.

1. Mesosternum angustum nee ajpice 'prominens.

1. Anomala undulata.

Anomala undulata, Melsheimer, Proc. Ac. Phil. ii. p. 140 (1844) ' ; Horn, Proc. Am. Ent. Soc.

1884, p. 160 \ ■

EucUora maculata, Castelnau, Hist. Nat. Col. ii. p. 136 (1840) ' (nom. prseocc).
Melolontha varians (Eabr. partim), Burm. Handb. d. Ent. iv. 1, p. 248* (nom. prseocc.}.

Hab. NoETH America ^ ^ ^. — Mexico ^, Orizaba, Toxpam, Cordova, Tepansacualco,
Cinco Senores {Salle), Jalapa (Edge) ; Beitish Hondueas, R. Hondo [Blancaneaux) ;
Guatemala, San Juan in Vera Paz {Champion).

A numerous series, similar in the wide range of variation in the number of the dark
elytral spots (in the darkest specimens forming undulating belts) to the North- American
form. The clypeus is semicircular (widening behind); and the anterior claw-joint
is without conspicuous tooth beneath, with the upper part of the cleft apex as long as
the lower. The brassy-brown central area of the thorax generally reaches the base,
where it is indented by a broad bilobed spot of the testaceous ground-colour.

2. Anomala discoidalis, (Tab. Xll. fig. 2.)

A. undulatce quam proxime affinis, sed differt thoracis macula nigro-senea trapezoidali distincte delimitata,
limbis testaceis laterali et basali latis ; elytris Mvo-testaceis, macula parva medio juxta suturam nigra,
raro disco et callis humeralibus apicalibusque maculatis ; thorace paullo subtilius disperse punctate,
margine basali medio late interrupto.

Long. 8 millim. 6 2-

BIOL, centr.-amee., Coleopt., Vol. II. Pt. 2, June 1888. 2 FF

218 LAMELLICORNIA.

Hah. Mexico, Cordova, Teapa (Salle) ; Panama, Bugaba, Volcan de Chiriqui 2500
to 4000 feet [Champion).

A dozen examples showing very little variation. The clypeus and anterior claws in
both sexes are formed precisely the same as in A. undulata, and I treat A. discoidalis
as a distinct species simply on account of its constancy in the Panama region, whence
nearly all the specimens come. The few Mexican individuals are rather less typical,
the thorax in these having a more or less stronger punctuation, an entire basal margin,
and less sharply defined spot, characters which connect them so far with A. undulata.

I received a specimen some years ago from Paris under the name of A. maculicollis,
Dej. An example from Chiriqui is figured.

3. Anomala guatemalena. (Tab. xii. fig. 3, var.)

A. undulatm affinissima, sed diflPert clypei lateribus fere parallelis etc. Minor, suboblonge ovata, fulvo-
testacea, nitida, viridi vel aeneo-fusco multifariam variegata ; clypeo transverso, lateribus fere parallelis,
cum fronte creberrime punctulatis ; thorace sicut in A. undulata, sat fortiter disperse punctate, sequaliter
convexo, linea dorsali obsoleta, margine basali integro ; elytris puncfcato-striatis, interstitiis subtiliter
disperse punctulatis (nee transversim rugosis), interstitio lato subsuturali basi solum confuse (fere
biseriatim) punctate, post medium unipunctato-striato, Pygidium sicut in A. undulata et A. discoidali
confluenter rugulosum, interspatiis sat amplis subverracosis.

Long. 6-7 millim.

Color supra variat : —

1. Tota rufo-testacea (elytris fulvioribus).

2. Tborax viridi-aeneus, limbo laterali eljtrisque fulvo-testaceis.

3. Tborax maculis 2 irregularibus viridi-seneis, elytris fulvo-testaceis callo humerali fusco.

4. Thorax seneus margine elytrisque fulvo-testaceis, bis macula mediana transversa suturali alterisque minutis

discoidalibus et marginalibus fuscis.

5. Thorax seneus vel rufescens, variabilis, elytris fascia mediana maculari, callo et vitta subhumerali nigro-

fuscis.

6. Eadem, sed elytris fasciis latis duabus undulatis seneo-nigris.

7. Eadem, sed capite thoraceque rufls,

8. Caput et thorax viridi-senea, elytris castaneo-fuscis maculis indistinctis castaneo-rufis.

9. Mgra, capite thoraceque castaneis vel viridi-seneis.

Hah. Guatemala, near the city (Salvin), Cerro Zunil 4000 to 5000 feet, Tocoy, El
Jicaro, San Geronimo, Chacoj, San Juan in Vera Paz (Champion) ; Costa Rica, Cache
(Rogers).

Nearly forty examples, two or three of which show a gradation towards A. undulata
in the more semicircular clypeus and one or other points of difference. The form,
however, is evidently in a state of almost complete segregation fronf the northern
species and merits a separate name and description. A specimen from Chacoj in the
Polochic valley is figured.

4. Anomala chiriquina.

Brevius ovata {S 2)) fulvo-testacea, nitida, capite cupraseenti-rufo, thorace plaga magna nigro-senea plerumque
lineola postero- dorsali abbreviata fulva ; elytris sutura fascia angusta undulata mediana, plaga suturali
ante apicem (interdum usque ad latera extensa), vitta lata marginali versus humeros et interdum maculis

ANOMALA. 21&

basalibus nigro-fuscis ; capite creberrime punctato, clypei lateribus fere parallelis ; thorace sequaliter
convexo sat grosse disperse et irregulariter punctate, margine basali integro ; elytris irregulariter punctato-
striatis (striis parum impressis), interstitiis Isevibua, interstitio lato prope suturain parce confuse punctato.
Pygidium c? $ subtiliter confuse rugulosum, subopacum.
Long. 7-7| millim.

Hah. Panama, Volcan de Chiriqui 2500 to 4000 feet {Champion).

Tar. Rufo-testacea, capite thoraceque seneo-tinctis, hoc subtiliter sparsim punctulato.

Hah. Costa Rica ( Van Patten).

Five examples. In form A. chiriquina comes very close to var. 6 of A. guatemalena^
differing only in its much smoother elytra and more minutely rugulose pygidium. It is
intermediate between that species and the following. The broad subsutural interstice
has but few punctures, these forming only two irregular rows.

5. Anomala eulissa, (Tab. xii. fig. 4.)

Brevius ovata, fulvo-testacea, polita, capite et thorace fundo nigris vel rufis viridi-seneo metallicis (hoc
rarissime lateribus fulvis), elytrisque sutura, fascia angusta mediana, plaga suturali subapicali et vitta
irregulari marginali, nigris vel castaneis ; capite antice subtiliter crebre punctulato, clypeo postico dilatato ;
thorace subtilissime et sparsissime punctulato; elytris punctato-striatis, stria 2^ Integra, interstitiis
laevibus. Pygidium sat acute et grosse confluenter strigulosum, utrinque 5 retuso-compressum, cj fortius
retuso-compressum medioque basi sulcatum. Subtus cum pedibus fulvo-testacea aut piceo-rufa aut nigra.

Long. 7 millim.

Hah. Panama, Bugaba, Volcan de Chiriqui 2000 to 4000 feet (Champion).

The entire second elytral stria distinguishes, besides other characters, this species
from others of the A. undulata group. Yet, widely distinct though it be, it is linked
with A. undulata step by step by the species or subspecies above described, and the
individual varieties, apparently very rare, intermediate between them. The markings
of the elytra in the thirty specimens examined offer little variation ; in what may
be considered typical examples there are, besides the narrow median fascia and the
large rhomboidal subapical sutural spot, an oblong dark spot in the middle of the
base and another similar one towards the apex in the fulvous area between the
rhomboidal spot and the broad lateral border. These accessory spots are often absent,
or the dark fascise more or less diffused.

6. Anomala compressicollis. (Tab. xil. fig. 5.)

A. undulatce affinis; magis ovata, flavo-testacea, thorace plaga antero-discoidali viridi vel cupreo-senea,
elytrisque macula rotunda prope suturam mediana (interdum maculis utrinque 3 in fasciara dispositis
plagaque suturali posteriore et callo humerali) fuscis : clypeo brevi et lato, postice paullo dilatato, dense
ruguloso-punctato ; thorace utrinque disco valde retuso velut compresso sulcoque lato dorsali, margine
basali integro, disco sat grosse et minus disperse punctato ; elytris regulariter punctato-striatis, interstitiis
brevibus, interstitio lato prope suturam confuse (fere biseriatim) punctato prope apicem unistriato.
Pygidium subtiliter confuse rugulosum, opacum.

Yariat fulva immaculata.

Long. 7-7|- millim.

Hah. Guatemala, Zapote (Champion).

2FF2

220 LAMELLICOENIA.

About a score examples, all presenting the strange apparent deformity of the thorax
above described. The species is otherwise closely allied to A. guatemalena; but
presents little variation in the elytral markings, which consist always (except when
absent altogether) of a few small dark spots in the same situations as the leading
spots in the other species of the group. The pygidium has an even surface, without
foveae or compression, and is minutely confluent, strigulose, and opaque.

7. Anomala calligrapha. (Tab. Xll. fig. 6.)

Oblonga, thorace relative parvo et basi elytris angustiore ; subtus nigra vel picea ventreque pallido ; supra
capite tboraceque nigro-seneis, politis, elytris fulvo-testaceis, plaga subhumerali fasciisque duabus undulatis
(jam interruptis jam valde dilatatis vel diffusis) nigro-fascis ; clypeo transverse, postice dilatato, punctulato-
ruguloso ; thorace medio angulatim dilatato deinde usque ad basin lateribus parallelis, dorse undique
pauUo insequali, disperse punctate, margine basali integro ; elytris eblongis rugulosis, punctato-striatis,
inter stitio late subsuturali valde confuse punctato striisque 2" et 3* irregularibus. Pygidium nitidum,
grossissime baud profunda punctatum, punctis lengitudinaliter confluentibus. S- Tarsi antici ungue
majore basi dHatate, dente tenui superiere elongate.

Long. 7-9 millim. c? 2 •

Hah. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).
Upwards of twenty examples.

8. Anomala retusicollis.

A. calligrapJice et A. compressicolli affinis ; oblonga, thorace postice lateribus parallelis, elytris hand relative
elongatis ; capite thoraceque medio nigro-seneis, hoc margine lato lineolaque abbreviata dorsali fulvis, elytris
fulvis, medio maculis l"-3™ parvis transversim positis fuscis ; thorace antice utrinque post eculum et sulco
antero-dorsali impresso, csetera superficie subsequali disperse punctate; elytris regulariter punctato-
striatis, interstitiis laevibus, subsuturali late biseriatim confuse punctato. Pygidium minute confluenter
rugulosum, subopacum.

Long. 6 miUim.

Hah. Panama, Bugaba, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Three examples, intermediate in form between A. calligrapha and A. compressicollis,
and also allied to A. chiriquina. The lateral depression of the thorax is confined to a
moderate space near the fore margin on each side instead of occupying the greater
portion of the half disc as in A, compressicollis.

9. Anomala barbicollis.

Praecedenti affinis ; oblonga, thoracis lateribus postice subparallelis, antice utrinque prope angulum depresso,
disco utrinque plaga magna setifero-punctata, csetera superficie convexa, subtiliter parce punctulata;
elytris punctato-striatis, interstitiis paullo cenvexis, laevibus, subsuturali lato, confuse multipunctato,
postice unistriato, striis 1% 3% 4^ et 9* lO^que prope apicem profundis ; pygidie subtilissime transversim
striate-opaco, sequaliter convexe ; capite et thorace politis, viridi-seneis rufo-translucentibus, hoc lateribus
falvis ; elytris fulvis, f asciis duabus undulatis (interdum latis et difFusis) nigro-fuscis vel castaneis.

Long. 9 millim.

Hah. Guatemala, Sinanja in Vera Paz (Champion).
Two female examples only.

ANOMALA. 221

10. Anomala cribriceps. (Tab. XIL %. 7.)

<J ovata, 2 oblongior postice dilatata, glabra, nitida, siibtus fusca, pedibus fusco-Beneis (interdum rufo-testaceis),
capite thoraceque subfusco-seneis vel cupreis vel capite cupreo, thorace fusco-aeneo (raro seneo-rufis), elytris
testaceo-fulvis maculis paucis fuscis ; capite piano usque ad verticem crebre (postice discrete) punctate,
clypeo semiovato pauUo reflexo ; thorace ffiqualiter convexo et distincte punctate, lateribus regulariter
areuatis, margine basali integro ; elytris minus regulariter punctato-striatis, hie illic transverse plicatis,
interstitio subsuturali lato valde irregulariter usque ad apicem punctato. Pygidium sequaliter convexum,
minute rugulosum, punctis intermixtis.

Elytrorum maculis typice quinque in fasciam obliquam ab humero (hand callum tegente) usque ad medium
props suturam dispositis ; variat maculis intermediis vel omnibus obsoletis ; interdum plaga marginali
posteriore vel tota superficie (maculis basalibus discoidalibusque exceptis) nigro-fusca.

Long. 7-10 millim, c? $ .

£[ab. Mexico, Colima city, Tonila in Colima, Chilpancingo, Guadalajara {H'6ge\
Yolos {Salle).

A large number of examples. Although the form, especially of the female, is
different, this species belongs to the group of which A. undulata and A. variegata
(Latr.) are the types. The slender upper part of the cleft anterior claws is as long as,
or longer than, the lower, which is dilated towards the base in the male. A. cribriceps is
remarkable for the close and comparatively uniform punctuation of the head, which is
opaque, except the slightly shining posterior part of the vertex. An example from
Tonila is figured.

11. Anomala punctatipennis.

Anomala punctatipennis, Blanch. Cat. Coll. Ent. i. p. 187 \

Hah. Mexico, Cordova, Vera Cruz ^ {Salle) ; Guatemala (Salle).

Four examples in the Salle collection bearing this name. The species is not so
" breviter ovata " as most others of the same group; the elytra are a little dilated
behind, and the thorax does not broaden towards the base and is nearly parallel-sided
behind the dilatation. The " profunde striato-punctatis " of Blanchard's diagnosis is a
distinctive character, the punctures of the strise being large, deep, and circular or
umbilicated, each seated in a larger impression. Size 6-7 millim.

12. Anomala zapotensis. (Tab. Xll. fig. 8.)

Late ovata, glabra, flavo-testacea, capite thoraceque seneo-tinctis hoc signaturis duabus vagis fuscis, elytris
castaneo-fuscis fasciis duabus dentatis flavo-testaceis, altera a scutelli apice usque ad medium basin
curvata, altera magis transversa mediana ; clypeo subsemicirculari, crebre rugoso-punctato, fronte sparsim
punctata ; thorace brevi et lato, ante medium perparum dilatato quasi a basi usque ad apicem angustato,
disperse punctato, margine basali integro ; elytris regulariter et profunde punctato-striatis, interstitio
lato subsuturali nuUo. Pygidium dense transverse confluenter strigosum. Mesosternum antiee declive
anguste obtuse carinatum.

Long. 9 millim. ,

Hob. Guatemala, Zapote {Champion).

Two female examples only. A distinct and handsome species. The relatively

222 LAMELLICOENIA.

great width of the body is not accompanied by a corresponding convexity, so that the
surface appears flatter than in other species of the group.

13. Anomala histrionella. (Tab. Xli. fig. 9.)

Ovata, glabra, Mvo-testacea interdum subtus cum pedibus nigro-senea, capite thoraceque viridi-seneo-tiiictis, illo
vertice, hoc plaga magna discoidali multilobata (medio interdum lineis 2 flavis fere divisa), saturatius
viridi-seneis, elytris striis omnibus macula utrinque antero-discoidali fasciisque duabus undulatis, castaneo-
rufis, fasciis interdum dilatatis vel late diffusis bine elytris toto castaneo-rufis maculis discretis elongatis
flavis ; capite toto subconfluenter punctato, clypeo semicirculari ; tborace lateribus arcuatis, antice plus
quam postiee angustato, macula utrinque laterali nigro, margine basali integro ; elytris utrinque striis
punctatis 12 profundis interstitiisque punctulatis; pygidium dense subtiliter confluenter strigulosum.
Mesosternum inter coxas depressum. c? • Tarsi antici ungue majore baud angulatim dilatato.

Long. 9-10 millim.

Hab. Mexico, Acapulco, Ventanas, Iguala {Edge) ; Nicaeagua, Chontales {Belt).

A large series of examples collected by Herr Hoge, one of which is figured. A
single specimen from Chontales agrees with the prevailing Mexican form in marking^.

14. Anomala •

Hah. NiCAEAGUA, Granada {SalU).

A single example of a species apparently distinct.

15. Anomala ?

Hah. Mexico, Cuernavaca {Salle).

A single example of a species almost exactly agreeing in sculpture with A. micans,
but from its narrow simple mesosternum and straight unthickened lateral margins of
the elytra belonging to a diff'erent group.

16. Anomala ?

Hah. Mexico {Salle, ex coll. Sturm).

A single example of a species allied to the preceding, but having a rather wider
mesosternum slightly thickened at the apex.

17. Anomala championi. (Tab. Xll. fig. 10.)

Elongato-ovata, fulvo-testacea, nitida, vertice macula utrinque tborace signatura magna sexlobata elytrisque
macula basali bumeralique, fascia mediana lata valde dentata et dilacerata, guttis maculisque apicalibus
nigro-seneis ; corpore subtus nigro-seneo, pedibus flavis nigro-maculatis ; capite densissime punctato, clypeo
postiee baud ampliato margineque parum elevato : tborace brevi et lato, lateribus subregulariter arcuatis
angulis posticis obtusis, dorso valde insequali utrinque transversim bicalloso, rugoso et sparsim grosse
punctato : elytris grosse punctato-striatis, utrinque costulis tribus subelevatis, lateribus confuse ruguloso-
punctatis, interstitio 2° confuse sub-biseriatim grosse punctato. Pygidium elytris dimidio obtectum, dense
confuse rugulosum, longe setosum. Mesosternum angustum, inter coxas baud tumidum. Tibise antic£e
bidentatse, sed dente tertio rudimentario, posticse suratae. Tarsi 4 anteriores ungue externo profunde fisso.

Long. 10 millim. $ .

ANOMALA. 223

Hah. Guatemala, Zapote [Champion). ^

Of this prettily marked and very distinct species there is only a single example.

18. Anomala tolensis.

Ovata, nitida, siibtus cum pedibus senea vel rufo-senea, capite thoraceque cupreis vel nigro-^neis, elytris fulvo-
testaceis, sutura (versus scutellum dilatata) margine sub humero et strigis indistinetis intermediis nigro-
fuscis vel castaneis ; capite crebre punetato, vertice Isevi, clypeo subsemicirculari, reflexo ; thorace medio
pauUo dilatato antice magis quam postice angustato, sat aqualiter convexo, subgrosse disperse punctato,
margine basali integro ; elytris lateribus sub callo humerali valde impressis, striis utrinque circiter
13 punctatis mediocriter impressis 2"* bio illic duplicata vel 2" et 3^ confusis. Pygidium sat magnum,
mediocriter convexum, minute et dense confluenter strigulosum, opacum. Mesosternum inter coxas
imprimis pauUulum convexum deinde planum declive. c? . Tarsi antici ungue majore lato sed baud
subangulatim dilatato.

Long. 10-11 millim. d" $ .

Hah. Panama, Tole {Champion).

Five examples. In this species the mesosternum is somewhat variable in width, and
in those specimens in which it is broader the apex is slightly tumid and shining.

19. Anomala ochrogastra. (Tab. Xll. %. ii.)

Elongato-ovata, nitida, viridi- vel cupreo-eenea, elytris abdominisque fulvo-testaceis, illis sutura margineque, hoc
segmentis postice, anguste fusco-marginatis ; capite creberrime confluenter (occipite sparsim) punctulato,
clypeo subsemicirculari margine reflexo ; thorace medio dilatato, antice plus quam postice angustato,
sequaliter convexo, disperse punctato, margine basali (sulculo profundo) integro ; elytris utrinque striis
punctatis geminatis tribus, interspatiis confuse (2° versus basin uniseriatim) punctatis, subsuturali
latissimo et multipunctato, punctis et striis mediocriter impressis. Pygidium amplum, sequaliter convexum,
nitidum, c? arcuatim strigosum, $ discrete punctatum. Mesosternum inter coxas depressum. <5 . Unguis
anterior major subangulatim dilatatus, dente superiore hand breviore.

Long. 14-15 millim. c? $ .

Hah. Panama, Bugaba, Volcan de Chiriqui 4000 to 6000 feet {Champion).

In this species the mesosternum, although always decidedly narrow, varies in being
thickened or not at the apex. A large number of examples.

20. Anomala flavizona. (Tab. xil. fig. 12, s .)

Elongato-ovata, fulvo-castanea senescens, crebre punetulata, thorace lateribus elytrisque post medium fascia
angusta pallide testaceis; thorace (marginibus exceptis) densissime erecto piloso; subtus «neo-picea,
pedibus pallide testaceis fusco-nigro maculatis ; capite grosse confluenter punctato, vertice laevi, clypeo sat
brevi subsemicirculari, antice (epistoma) alte verticali politissimo ; thorace relative parvo et brevi, medio
pauUo dilatato, angulis posticis obtusis, margine acuto basali integro, grosse confluenter punctato ; elytris
undique sat dense punctulatis, stria suturali et striis costalibus, prgecipue postice, paullo impressis et
distinetis ; pygidio arcuatim strigoso et pilifero-punctulato, obscure seneo opaco ; tibiae anticse bidentatse.
Mesosternum subangustum, apice laeve pauUulum tumidum. Tarsi antici c? ungue majore baud subito
dilatato, dente superiore tenui baud breviore, 5 gracili profunde fisso.

Long. 12-13 milHm. J ? •

Hah. Guatemala, Zapote, Senahu, Purula, Sinanja {Champion).
Six examples. We figure a male specimen from Purula.

224 LAMELLICOElSriA.

21. Anomala versBcrucis.

Oblonga, subovata, fulvo-testacea, thorace saturate viridi-seneo vitta marginali medio intus sinuata fulva;
capite rufo, elytris sutura angusta lineaque marginali sublramero (interdum margine lata irregulari)
nigro-fuscis. Capite crebre punctate, vertice Isevi, clypeo subsemicirculari, pauUo reflexo ; thorace
lateribus sat regulariter arcuatis, angulis postice subrotundatis, margine basali integro, sat fortiter sub-
disperse punctate ; elytris utrinque costis tribus vix elevatis striis punctatis rectis delimitatis, interstitiis
inter costas 1™ et 2^ stria pauUo irregulari unica, inter costas 2™ et 3™ parce confuse punctate, interstitium
subsuturali lato multipunctato, stria suturali valde impressa fere recta, striis 2^, 3^ et 7* S'^que prope callum
apicalem, profunde exaratis. Pygidium S confluenter baud profunde arcuato-rugulosum, parum nitidum,

2 discrete punctatum, nitidum. Tarsi anteriores articulo unguiculari subtus dentate. Tibiae antiese
bidentatse. Tarsi anteriores ungue majore S baud subangulatim dOatato, dente superiore breviore,.

2 fere sequaliter fisso.
Long. 11-12 millim. c? $ .

Hab. Mexico, Vera Cruz (Salle) ; Guatemala, San Isidro (Champion).

This and the following species much resemble the smaller examples with yellow elytra
of A. cincta, and still more A. costaricce, but the narrower simple mesosternum and
bidentate anterior tibise amply distinguish them.

22. Anomala sejuncta.

A prsecedente diifert thoracis angulis posticis fere rectis, margine ante angulum leviter sinuato margineque
fulvo antice dilatato posticeque attenuate ; elytris Isevioribus striisque prope callum apicalem minus,
profundis.

Long. 12 millim.

Eah. Guatemala {Salle), Duenas and near the city [Champion); Costa Eica [Van
Patten).

Four examples. The colour of the head is coppery red and of the thorax coppery-
seneous or brassy-black, the elytra having no dusky marking except a narrow sutural
border. The pygidium is much more densely and deeply sculptured. Costa Rican
examples have the hind angles of the thorax less rectangular than those from
Guatemala.

23. Anomala ?

Hah. Guatemala {Salle).

A single example of a doubtful species.

24. Anomala hopfneri. (Tab. XII. fig. 13, ? .)

Anomala inconstans, var.^ Burm. Handb. der Ent. iv. 1, p. 253 \

Oblongo-ovata, postice dilatata, flavo-testacea, capite castaneo-rufo, thorace plaga magna basi attingente
senescenti-castanea elytrisque vitta suturali (medio dilatata) vitta postero-marginali et saepe callo hxunerali,
nigris ; clypeo postice parum dilatato, marginibus reflexis ; thorace relative parvo, ante medium sub-
angulatim dilatato, angulis posticis subrectis, disperse punctulato, margine basali integro ; elytris striis
vix impressis, punctulatis valde irregularibus vel confusis, juxta costas planissimas solum paullo rectioribus.

ANOMALA. 225

interstitio suturali lato. Pygidium convexum, punctatum. Pectus et coxae flavo-villosa ; tarsorum

anticorum articulo unguiculari subtus vix perspicue dentato.
c? . Tibiae antiese bidentatae, tarsi antici ungue majore elongate acuto basi subtus sinuato, dente superiore tenui

et sat brevi.
2 . Tibiae anticae tridentatae vel bidentatse, dente superiore brevissimo interdum obsolete. Tarsi antici ungue

majore fere^ aequaliter fisso.
Long. 12-15 millim. c? 2 • '

Hah. Mexico ^, Puebla, Tepansacualco, Peras, Oaxaca [Salle).

Burmeister mentioned the differences of sculpture which distinguish A. Mpfneri (as a
variety) from the more southerly forms of A. inconstans, but did not notice the pecu-
liarity of dentition of the anterior tarsal claws in the male, which I find quite constant.
The markings of A. hd])fneri are also different from those of A. inconstans. The sutural
vitta of the elytra is nearly always dilated in the middle, and the apical margin has a
broad velvety-black border seldom entirely absent. The broad trapezoidal spot of the
thorax reaches the base, but there is generally a pale transverse streak in the middle of
the basal part. An example from Peras is figured.

25. Anomala inconstans. (Tab. XII. fig. 14.)

Anomala inconstans (partim)^ Burm. Handb. der Ent. iv. 1, p. 252 \
Anomala lurida (Fabr.), Burm. loc. cit. p. 562.

Sah. Mexico i, Peras, Yolos, Oaxaca {Salle) ; Guatemala {Salle), Guatemala city
'{Champion); Nicaragua, Chontales {Janson); Costa Rica {Bogers) ; Panama, Volcan
de Chiriqui {Champion). — South America, Colombia, Brazil i.

In the male the larger claw of the anterior tarsi is long, subtriangularly dilated near
the base only, and the upper tooth is nearly as long as the lower ; in the female the
upper tooth is longer than the lower. The larger size (16-17 millim.), more distinctly
tricostate elytra, with thickly punctured intervals, flatter pygidium, much more obtuse
thoracic hind angles, and different elytral markings (broad and dark discoidal streaks
being the prevailing pattern) further distinguish the species from A. hopfneri. The
subtridentate anterior tibiae in the female is a more constant character in this species
than in A. hopfneri.

The examples from Chiriqui (two in number) differ from all the Mexican and Guate-
malan individuals by the elytra being yellow with the suture (narrowly) and the humeral
callus only black, and by the narrower and less punctured intervals between the costae.

Burmeister, in his appendix, stated his belief that his species was probably the
A. lurida of Fabricius — a suggestion of change of name promptly adopted, as usual in
such cases, by subsequent writers. The description of Fabricius, however, as given in
the Syst. Entom., does not in the least apply to A. inconstans in any of its varieties.
The " caput nigrum " and " elytra punctis duobus ad suturam et unico versus apicem "
must refer to some species of a different group of Anomalce. The country of Fabricius'
species was unknown. We figure a Guatemalan specimen of A. inconstans.

BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, Junc 1888. 2 GG

226 LAMELLICORNIA.

26. Anomala gemella. (Tab. xii. fig. 15.)

Anomala gemella, Say, Boston Journ. Nat. Hist. i. p. 181'; Complete Writings, ii. p. 654; Burm.
Handb. der Ent. iv. 1, p. 253 ^.
Bd). Mexico 1 2, Tepansacualco {Salle\ Mexico city {'Elohr).

Closely allied to the two preceding ; rather smaller and more oblong, the elytra
•sprinkled throughout with short blackish streaks, the streaks in some examples con-
densing into dusky patches. A good distinguishing character is the perfectly rectangular
hind angles of the thorax. The three examples before me appear to be females.

27. Anomala chevrolati. (Tab. Xll. fig. 16.)

Sat elongata, angusta, flavo-testacea, capite maculaque thoracica mediocri antero-dorsali castaneo-rufis, elytris
vitta suturali per scutelli latera usque ad basin ducta nigra, margine posteriore interdum anguste nigra ;
capite crebre pnnctato, clypeo postice vix dilatato ; tborace angulis posticis obtusis sed distinctis, margine
basali integro, disperse punctulato ; elytris punctulato-striatis, utrinque minus distincte tricostatis, eostis
versus apicem convexis striisque interstitialibus pauUo confusis, interstitio suturali lato punctulato,
subsuturali multipunctato. Tarsi antici articulo unguiculari subtus baud dentato.

S . Tarsi antici ungue majore baud dilatato, dente superiore parum breviore ; pygidium discrete punetatum.

$ . Tarsi anteriores ungue majore subsequaliter fisso ; pygidium densius et aspere punctato-rugulosum. Tibiae
antiese semper bidentatse.

Long, 12 millim. c? 2 •

Hah. Mexico, Yolos {Salle\ Ventanas in Durango {Hbge).

Seven examples. Bears the MS. names A. suturalis and A. suturella in the Salle col-
lection ; the former name has been used by Lansberge for a described African species.

28. Anomala centralis.

Anomala centralis, Leconte, New Species N. Am. Col. p. 78 (1863) ' ; Horn, Trans. Am. Ent. Soc.

. xi. p. 159 ^

Hah. North America, Peninsula of California 2, Cape San Lucas 1, Arizona 2. —
Mexico, Sonora 2, Tres Marias Islands (Forrer).

Three examples agreeing fairly well with Dr. Horn's description and with a specimen
from Arizona received from the late Mr. Morrison.

29. Anomala ruatana,

Oblongo-ovata, fulvo-testacea, capite plagaque magna thoracis subfusco-cupreis, elytris sutura margineque
partim nigro-fuscis ; capite crebre confluenter punctato vertice l^viore, clypeo postice parum ampliato ;
tborace lateribus regulariter arcuatis, antice angustato, angulis posticis subrectis, margine basali integro,
disperse sat fortiter punctato; elytris punctato-striatis, interstitio 2° (subsuturali) multipunctato, 7°
sub-biseriatim confuse punctato ; pygidium S taud profunde discrete punetatum, $ crebrius rugulosum.
Tibiae anticae cJ $ bidentatso. Tarsi antici articulo unguiculari subtus (intus) acute dentato, ungue
majore elongate sat angusto, dente superiore tenui abbreviate.

Long. 10 millim.

Hah. Honduras, Euatan Island (6*«Mmer).

Two examples. A Mexican Anomala in my collection, received from A. Deyrolle

ANOMALA. 2.27

many years ago, without name, belongs to this species ; it is probably fi-om some locality
in Southern Mexico. This specimen is rather smaller (8| millim.), and has the black
sutural vitta much broader, and the lateral and apical borders of the elytra and a large
part of the scutellum also black ; but the form and sculpture are similar.

30. Anomala flavilla. (Tab. xii. fig. 18.)

Oblonga, flavo-testacea, capite ruflore (vertiee interdum fusco), thorace maculis duabus (transversim positis,
interdum obsoletis) elytrommque sutura angusta (interdum dilatata) et toto limbo exteriore fuseo-nigris ;
clypeo sat parvo, semicirculari ; thorace lateribus arcuatis, angulis posticis rotundatis, margine basali
integro, sequaliter convexo, disperse punctulato ; elytris regulariter punctato-striatis, interstitio lato sub-
suturali confuse (baud numerose) punctafco ; pygidio discrete punctate, nitido, convexo. Tibiae antice
subtridentatae.

Tarsi antici ungue majore, S medio leviter dilatato, dente superiore tenui paullo breviore, $ graciliore lon-
gioreque apice fisso.

Long. 8-9 millim,

Hab. Mexico, Tres Marias Islands, Ventanas in Durango (Forrer).
Four examples. A specimen from Ventanas is figured.

31. Anomala decolor.

A,fiavipenni (Burm.) affinis et similis, sed differt tibiis anticis tridentatis etc. Oblongo-ovata, rufo-testacea;

nitida (thorace interdum plagis duabus rufescentibus), vertiee callo humerali suturaque anguste fuscis ;

clypeo sicut in A. jiavipenni concavo sed minus quadrato, subsemicirculari, fortiter sed discrete punctate ;

thorace lateribus arcuatis, angulis posticis fere rotundatis, margine basali integro, disperse punctato;

elytris magis regulariter punctato-striatis, interstitiis subsuturali (lato) et humerali confuse (sub-bise-

riatim) punctatis striaque tertia (ab interstitio subsuturali) paullo irregulari ; pygidio discrete punctato ;

tibiae anticae dente superiore (3°) prominente. Mesosternum inter coxas angustissimum. Unguis major

anterior ( $ ) sicut in A. jiavipenni fissus. Antennae cum clava sat elongatae.
Long. 11-12 miUim. $ .

Hah. Mexico (FloJir, in coll. Bates).

Females only. Although the four examples are not so ticketed I believe they came
from the neighbourhood of the city of Mexico.

32. Anomala megalops. (Tab. Xii. fig. 19.)

A. Jiavipenni (Burm.) affinis, sed valde differt oculis maximis globosis. Oblongo-ovata, rufo-testacea, nitida,
fronte et vertiee sutura calloque humerali nigris, thorace interdum plagis duabus vagis fuscis ; clypeo
postice parum dilatato, margine sat alte elevato parce subtiliter ruguloso, oculis magnis globosis ; thorace
brevi et lato, lateribus arcuatis, angulis posticis valde obtusis, margine basali integro, disperse punctato -,
elytris sicut in A. clecolori punctato-striatis, interstitiis subsuturali et humerali parce confuse punctatis ;
pygidio convexo, discrete punctato ; tibiis anticis tridentatis. Metasternum inter coxas angustissimum.

cJ ? AiitenuEe elongatae, clava valde elongata gracilis. Tarsi antici ungue majore elongate nullomodo dilatato,
dente superiore breviore, articulo unguiculari subtus valde dentate.

Long. 11 millim. S ?

Hab. Mexico, Cordova (SalU), Jalapa (Hbge).

Two examples only, both apparently males. The antennal joints 3-5 are rather
longer than usual in the Anomalce, and the club is very long and slender. The same

2GG2

228 LAMELLICOENIA.

feature is presented by A. flavipennis, though in rather less degree, and more strongly
pronounced in the male than in the female. As we have seen, the antennal club is also
elongate in A. decolor.

33. Anomala hispidula. (Tab. Xll. fig. 20, $ .)

Oblonga, supra breviter (tliorace densius) erecte griseo-pilosa, subtus fere glabra ; cupreo-fusca, tborace
lateribus elytrisque maculis ralde irregularibus plus minusve confluentibus testaceo-fulvis, femoribus
tibiisque testaceo-variis ; interdum fere toto cupreo-fusea ; capite crebre confluenter punctate, piano,
clypeo eemicirculari margine parum elevate ; tborace lateribus arcuatis, angulis posticis subrotundatis,
anargine basaH acute delimitato, integro, tota superficie densissime subconfluenter punctate ; elytris dense
rugulosis, punctulis intermixtis, punctato-striatis, costulis tribus parum distinctis, interstitio subsuturali
"late confuse multipunctato. Pygidium densissime rugulosum, opacum, longe pilosum. Tibise anticse
bidentatae. Mesosternum inter coxas mediocriter angustum.

S . Tarsi antici ungue majore brevi curvato late, dente superiore tenui breviore.

Long. 9-10 millim. c? $ .

Hah. Guatemala, San Geronimo (CA«mpio?i).
Four examples.

34. Anomala ?

Hob. Mexico, Vera Cruz (Salle). *.

A single female example, distinct from any of the foregoing.

35. Anomala ?

Hob. NicAEAGUA, Chontales {Belt).

A single imperfect example of a species of this group, also distinct from all the
foregoing.

36. Anomala ?

Eah. Panama, Volcan de Chiriqui {Champion).

A single example of a species of the prevailing coloration of the present group, and
without marked peculiarity.

37. Anomala denticoUis, (Tab. Xli. fig. 17.)

Anguste oblonga, fulvo-testacea, capite fulyo-rufo, tborace fusco-seneo lateribus anguste testaceis et deflexis,
elytris sutura (prope scutellum latiore et ante medium in maculam ovatam dilatata) caUisque humerali
apicalique nigris, abdomine fusco ; capite creberrime (vertice sparse) punctate, media fronte concara
clypeoque brevi vel valde trans versim subquadrato, margine sat alte elevate ; tborace relative brevi, medio
sat abrupte dilatato, angulis posticis longe productis acutis, undique punctulato et subingequali, margine
basali integro ; elytris sat regulariter punctato-striatis, interstitio subsuturali sub-biseriatim confuse
punctate striaque prope callum humeralem irregulari.

$ . Pygidium convexum, sat dense punctatum, nitidum. Tibiae anticse valide bidentatse ; tarsi anticse ungue
majore subsequaliter breviter fisso.

Long. 12 miUim.

ANOMALA. 229

Hah. Guatemala, Cerro Zunil {Champion).

Although only a single specimen is to hand, the strongly-marked characters of this
species justify its being described.

38. Anomala polygona.

Elongato-ovata, cupreo-senea, polita, thorace lateribus (anguste) elytrisque fulvo-testaceis, his plaga circum-
scutellari, callis humerali apicalique fascia mediana valde undulata et signaturis vagis posterioribus nigro-
aeneis, pedibus cupreo-rufis ; capite minus crebre punctato spatiis Isevibus, clypeo trapezoidali, margine
minime elevato ; thorace antice valde aogustato, medio sat abrupte angulatim dilatato, angulis anticis
porrectis et posticis valde productis subspiniformibus, sparse punctulato, basi (juxta angulos exeepta)
immarginato ; elytris valde irregulariter seriatim punctatis, nee striatis, hie illic punctis in foveolas
agglomeratis. Pygidium grossissime rugoso-punctatum, nitidum, cuprascenti-rufum fusco-maculatum.
Tibiae anticse acute tridentatae. Tarsi antici articulo unguiculari subtus acute dentato, ungue majore
( 5 ) profunde fisso ; tibise posticse valde suratse. Mesosternum inter coxas declive mediocriter angustum,
planum. Pectus fulvo-villosus.

Long. 12 miliim. $ .

Hah. Costa Eica {JDr. Horn, in coll. Bates).
One example only.

39. Anomala trapezifera.

A. polygonce evidenter affinis, sed thoracis forma valde diversa. Anguste oblonga, fusco-nigra, subnitida, thorace
lateribus (irregulariter) elytrisque undique maculis et signaturis fulvis, pedibus abdomineque fulvo-
plagiatis ; capite parcissime hand profande punctato, clypeo late trapezoidali ; thorace a basi usque ad
apicem angustato, lateribus leviter arcuatis, angulis anticis acutis posticis rectis (apice obtusis), disperse
punctato, margine basali integro ; elytris striato-punctatis, striis rugulis transversis multifariam inter-
ruptis, interstitio subsuturali lato confuse multipunctato ; pygidio nigro fulvo-maculato, disperse punctato,
nitido. Antennae fulvae. Tarsi antici articulo unguiculari subtus dentato ; ungue majore ( $ ) gracili
apice fisso ; tibiae anticae tridentatae, Mesosternum inter coxas declive mediocriter angustatum. Pectus
fulvo-villosus.

Long. 14 miliim. $ .

Hah. Costa Eica (Br. Horn, in coll. Bates).
One example only.

40. Anomala binotata.

Melolontha hinotata, Gyllenhal in Schonh. Syn. Insect, i. 3, Appendix, p. 106 \
Anomala hinotata, Burm. Handb. der Ent. iv. 1, p. 262 ; Horn, Trans. Am. Ent. Soc. xi. pp. 158
&164(1884)^

Hah. Noeth Amekica ^ ^. — Mexico, Northern Sonora (Morrison), Finos Altos in
Chihuahua (Buchan-Hephurn).

41. Anomala foraminosa. (Tab. Xll. fig. 21.)

A. Unotatce affinis. Magis ovata, cupreo- vel viridi-aeneo-fusca, nitida, capite cupreo-rufo, elytris fulvis, sub-
seriatim punctatis et nigro-foveolatis, seriebus foveolarum utrinque suturali et tribus geminatis, interstitio
lato subsuturali confuse multipuuctato ; pygidio densissime striguloso, opaco, griseo-piloso ; clypeo semi-

230 LAMELLICOENIA.

circulari, eonfluenter punctate ; thorace ante medinm subangulatim paullo dilatato, margine basali medio
subinterrupto, superficie paullo insequali, irregulariter sat grosse punctato ; pectore griseo-villoso. Tibiae
antics bidentatffi. Mesosternum inter coxas lato, apice .(juxta metasternum) interdum transverse sub-
tumidum.

<S . Tarsi antici ungue majore brevi dilatato, dente superiore baud breviore.

Long. 11-12 miUim. c? 5 .

Hab. Mexico, Puebla, Teapa {SalU), Jalapa, Yautepec, Oaxaca {Edge); British
HoifDUEAS, R. Hondo {Blancaneaux) ; Guatemala, Zapote, Volcan de Atitlan,
Pantaleon (Champion); Panama, Bugaba (Champion).

Distinguished from A. irrorata, Blanch., with which it agrees in the densely strigulose
opaque pygidium, by the three twin rows of foveoles on the elytra sharply distinguished
from the other smaller punctures.

Thirty examples, varying a little in the number of black spots on the elytra.

The foveeB of the elytra are mostly a little elongated, and in them are aggregated from
two to five of the ordinary punctures, leaving spaces between the foveae free of punctures.

I have adopted (with a slight alteration of termination) the MS. name given to the
species by Chevrolat. An example from Atitlan is figured.

42. Anomala irrorata. (Tab. Xll. fig. 22.)

Anomala irrorata, Blanch. Cat. Coll. Ent. i. p. 187 \

Hah. Mexico ^ Cuernavaca, Puebla, Tuxtla, Catemaco, Oaxaca {Salle), Colima city,
Yautepec, Oaxaca (Hoge).

There are many examples in the Salle collection labelled A. irrorata, Blanch., and
they agree with Blanchard's description as regards the sculpture of the elytra, which
difi'ers from that of A. foraminosa in being more irregular and stronger, and wanting
the geminated rows of foveoles. Blanchard's phrase runs " Eltyris pallide testaceis,
profunde seriato-punctatis, punctis omnibus maculaque media versus suturam piceis."
A specimen from Oaxaca is figured.

43. Anomala sticticoptera.

Anomala sticticoptera , Blanch. Cat. Coll. Ent. i. p. 187 \

Eal. Mexico ^ Cordova {Salle) ; Beitish Honduras, R. Sarstoon {Blancaneaux) ;
Guatemala {Salle), Volcan de Atitlan, Zapote, San Geronimo, Purula, Sabo {Champion) ;
Costa Rica {Van Patten), Irazu {Bogers).

Distinguished from the three preceding species by the very finely and less densely
strigose and glabrous pygidium. The colour and sculpture of the elytra are similar,
but have a wider range of variation ; some Guatemalan examples have the elytra
clear testaceous with castaneous suture; in others the black spots coalesce and the
elytra become blackish-castaneous with a few tawny patches. In most examples the

ANOMALA. 231

geminated lines of punctures are larger than the others and dusky, but they do not
form such distinct linear foveoles as in A. foraminosa.

Several examples in the Salle collection are labelled A. sticficoptera, Blanch., others
A. adspersa, Deyr. MS.

44. Anomala atomogramma. (Tab. XII. fig. 23.)

A. hinotatce (Gyll.) affinis et similis, sed duplo major pygidioque minus dense striguloso, nudo, subnitido etc.
Oblongo-ovata, obscure viridi- vel cupreo-senea, nitida, elytris testaceo-fulvis, sutura, plaga subbumerali
elytrorumque punctis fusco-nigris ; clypeo subsemicirculari, margine leviter reflexo, cum fronts confluenter
punctulato ; antennis nigro-fuscis ; tborace ante medium mediocriter dilatato, postice pauUo dilatato,
angulis posticis subrectis apice obtusis, margine basali integro, subtiliter punctato ; elytris punctato-
striatis, striis parum impressis et punctis hie illic in lineas condensatis, interstitio subsuturali latissimo
confuse multipunctato, interstitio bumerali sub-biseriatim confuse punctato ; pectore fulvo-villoso. Pygi-
dium nitidum, nudum, rugulis punctatis brevibus transversis. Tibiae anticse bidentatse ; tarsi antici
articulo unguiculari subtus dentato. Mesosternum inter coxas sat angustum, declive. c? • Tarsi antici
ungue majore lato versus basin dilatato, dente superiore vix breviore.

Long, 17 millim. d" $ .

Hab. Mexico, Presidio (Forrer), Tuxtla (Salle); Guatemala, Aceytuno, Purula
[Champion).

In some Mexican specimens the elytral punctures are but very slightly infuscated.
Nine examples. We figure an individual from Presidio.

45. Anomala ?

Mab. Mexico, Playa Vicente (Salle).

A single example, very imperfect (wanting the tarsi), of a species apparently distinct.

46. Anomala ?

Hab. Panama, Chiriqui (coll. Bates).

A single female example of a species allied to A. sficticoptera, but apparently quite
distinct.

47. Anomala millepora.

Ovata, obscure cupreo- vel viridi-senea, elytris castaneo-rufis, sutura et vitta vaga marginali fusco-nigris, interdum
disco nigrescente ; clypeo lateribus rectis, margine elevato, toto capite densissime sed subdiscrete punctulato ;
tborace ante medium subangulatim postice baud dilatato, angulis posticis obtusis sed distinctis, margine
basali medio fere interrupto, undique sat dense punctulato ; elytris toto subdense punctulatis, disco et
lateribus punctulis subseriatim dispositis. Pygidium metallicum, subopacum, densissime et subtiliter
confluenter rugulosum quasi alutaceum, glabrum ; corpore subtus et pedibus metallicis, bis pauUulum
picescentibus, pectore fulvo-villoso ; tibiis antieis bidentatis. Mesosternum sat angustum declive.
$ . Tarsi 4 anteriores ungue exteriore profunde fisso. J • Tarsi antici ungue majore lato baud subito
dilatato, dente superiore vix breviore.

Long. 14-15 millim. c? $ .

Hab. Guatemala, Volcan de xititlan (Champion).

232 LAMELLICOENIA.

Three examples. The fine, dense, and regular punctuation, especially of the elytra,
in which on close examination it is found to be arranged in rather uneven lines placed
very near together on the disc and sides, distinguishes this species.

48. Anomala ?

Eah. Mexico, Cuernavaca (Edge).

A single example of a doubtful species.

49. Anomala ochroptera.

Oblongo-ovata, polita, seneo-fusca, elytris ochreis, sutura (anguste) margineque lateral! prope humeros nigro-
fuscis ; subtus CTirn pedibus antennisque testaceo-raf a, polita ; capite dense confluenter, vertice discrete,
pnnctatis, clypeo postice vix ampliato, margine reflexo ; thorace postice baud latiore, lateribus arcuatis,
margine basali integro sulculo profundo, supra disperse punctulato ; elytris baud profunde punctato-
striatis, interstitio subsuturali et bumerali confuse multipunctatis ; pygidio dispersissime transverso-
punctato, polite. Tibise antiese bidentatse denteque tertio brevissimo, parum distincto. Mesosternum sat
latum, sed apice nee productum nee tumidum. $ . Tarsi 4 anteriores ungue majore profunde fisso, dente
superiore baud breviore.

Long. 12-14 millim. $ .

Hah. Beitish Hondueas, R. Sarstoon (Blancaneaux) ; Nicaeagua, Chontales (Belt).

Two examples, females. The species, though more oblong, resembles the pale
varieties of A. cincta ; it comes, however, nearer to A. verwcrucis and A. sejuncta^ with
which it has in common the sharply incised and entire basal sulculus of the thorax.

2. Mesosternum latior, a^ice 2)lus minusve incrassatum.

50. Anomala amphicoma. (Tab. XII. fig. 24, 6 .)

Ovata, seneo-fusca, undique densissime erecte pilosa pectoreque villoso ; capite toto discrete punctate et inter
puncta subtiliter ruguloso, clypeo postice parum latiore ; thorace ante medium mediocriter dilatato, postice
baud latiore, angulis posticis obtusis sed distinctis, margine angusto et acute, basali integro, toto densissime
pilifero-punctulato ; elytris undique confluenter rugulosis, striis (suturali excepto) grosse punctatis parum
distinctis ; pygidio densissime striguloso fulvo-birto, opaco. Tarsi antici articulo unguiculari subtus
dente valido acuto ; tibiae anticae bidentatae, 4 posticae grossissime elongato-punctatae : mesosternum inter
coxas mediocre, declive, apice pauUo incrassatum sed baud elevatum. S • Tarsi antici ungue majore
brevi versus basin dilatato, dente superiore distincte breviore ; intermedii ungue exteriore gracili, fisso.

Long. 12 millim. c? 2 •

Hab. Pai^ama, Volcan de Chiriqui 4000 to 6000 feet (Chamjpion).
Four examples.

51. Anomala eucoma.

Ovata, cupreo- vel aeneo-fusca, undique densissime erecte fulvo-pilosa, elytris f asciis latis indistinctis ; capite
obscure rufo dense subconfluenter punctate, clypeo postice parum latiore; thorace ante medium
perparum dilatato, postice (a supra visu) vix ampliato, angulis posticis obtusis sed distinctis, margine
basali angusto integro, toto densissime pilifero-punctulato ; elytris distincte sat regulariter baud profunde
punctato-striatis, sed tota superficie transversim subtiliter rugulosa et punctulata, interstitio subsuturali

ANOMALA. 233

lato, confuse punctato et ruguloso ; pygidium densissime puncfcato-rugulosum, opacum, pilosum. Tibiaa
anticas bidentatse, 4 posticse grossissime elongato-punctate. Mesosternum sat latum, inter coxas tumi-
dulum, c? • Tarsi antici ungue majore medio dilatato, dente superiore baud breviore.
Long. 12-14 millim. c? ? •

Hah. Guatemala, Las Mercedes 3000 feet, San Isidro, Pantaleon (Champion) ; Costa
EiCA (Salle, Van Patten).

52. Anomala semitonsa, (Tab. XII. fig. 25, var.)

A. eucomce proxime affinis, sed elytris spars ius pilosis et distincte punctato-striatis. Ovata, cupreo- vol seneo-
fusea, capite tboraceque dense, elytris corporeque subtus sparsius, breviter erecte pilosis, elytris fulvo-
testaeeis, nitidis, burner is etfasciis duabus undulatis(l'' mediana, 2" ante apicem interdum cum limbo nigro
postero-laterali et apicali conjuncta) fusco-nigris ; capite discrete punctato, interspatiis punctulatis, clypeo
postice vix ampliato ; thorace ante medium pauUo dilatato, angulis posticis obtusis, margine basali angusto
integro, toto dense sed discrete pilifero-punctato ; elytris sat fortiter punctato-striatis, striis parum
impressis interstitiisque angustis Itevibus transversim rugulosis, interstitio lato subsuturali confuse multi-
pun etato ; pygidio densissime striguloso, longe piloso, opaco. Tibiae anticae bidentatse, 4 posticse grosse
elongato-punctatse ; tarsi articulo unguiculari subtus acute dentato. Mesosternum sat latum, tumidum.
(S . Tarsi antici ungue majore brevi medio dilatato, dente superiore baud breviore.

Long. 11-12 millim. (S 2 •

Hab. Panama, Bugaba, David (Champion), Chiriqui (Bihhe).

The numerous examples from David are most typical ; three labelled " Chiriqui " from
Ribbe, and one from Bugaba, have less distinct strise and punctulated and more hairy
interstices. These have a tendency to connect A. semitonsa with A. eucoma. A Bugaba
specimen is figured.

53. Anomala sylphis. (Tab. Xlii. fig. l.)

Gracilis, elongato-ovata, rufo- vel f ulvo-testacea, nitida, capite, thorace, scutello corporeque subtus plus minusve
viridi-seneis ; interdum viridi-aenea, elytris nigerrimis ; capite dense, clypeo confluenter, punctulatis, hoc
piano, margine pauUo elevato, semicirculari ; antennarum clava nigra ; thorace ante medium leviter
dilatato, postice baud ampliato, marg-inis basalis sulculo acute exarato, supra dense subconfluenter
punctulato (linea dorsali sublaevi) et dense erecte piloso, toto vel plaga tantum trapezoidali, viridi-seneo ;
elytris glabris, punctulato-striatis, striis disci alternis baud impressis et incompletis, interstitiis lato sub-
suturali et humerali confuse punctatis ; pygidio et propygidio dense ventroque sparsius incumbente
cinereo-pilosis ; pedibus gracilibus, tibiis posticis apice vix constrictis, sublaevibus. Mesosternum latum,
supra tumidum, sat prominens. S • Tarsi antici ungue majore brevi et lato, dente superiore valido baud
breviore.

Long. 12 millim. c? $ •

Eah. Mexico, Cordova, Orizaba (Salle).

54. Anomala IsBsicollis. (Tab. Xill. fig. 2, $ .)

Elongato-ovata, politissima, viridi-^nea, clypeo antice thoraceque limbo lateral! fulvo-testaceis, elytris seneo-
castaneis ; subtus cum pedibus saturatius a^nea, abdomine interdum fulvescente, femoribus et tibiis fulvo-
variegatis ; clypeo semicirculari, confluenter punctato, vertice et f route sparse punctulatis ; thorace a basi
ad apicem angustato, lateribus arcuatis, margine basali anguste subinterrupto, dorso subtUissime et parce
punctulato utrinque callis duobus obliquis (interdum subobsoletis), interspatiis depressis ; elytris punctulato-
striatis, interstitio 2° latissimo, confuse subtiliter multipunctato. Pygidium paullo compressum, nitidum,
confluenter strigulosum. Mesosternum sat latum et inter coxas tumidum. Tibise anticae bidentatse,

BIOL. CENTE.-AMEE., Colcopt., Vol. II. Pt. 2, June 1888. 2 HH

234 LAMELLICOENIA.

«

posticae valde suratse. S- Tarsi anticse ungue majore prope medium dilatato, dente superiore haud
breviore.
Long. 11 millim. 6 2-

Hah. Guatemala, Cerro Zunil, Las Mercedes {Champion).

55. Anomala ■?

Hah. Guatemala, Sinanja [Champion). .

A single very imperfect example of a species deceptively similar to the above, but
with a perfectly even thoracic surface, and remarkable for the extreme narrowness of
the mesosternum combined with a somewhat prominent triangular apex (not tuber-
culiform), advancing beyond the suture of the metasternum.

56. Anomala doryphorina. (Tab. Xlll. fig. 3.)

Gen. Doryphor(B (Pam. Chrysomelinse) similis. Ovata, valde convexa, castaneo-rufa, polita, elytris utrinque
litura ovata magna a humero (callum humerali cingente) per basin curvata usque ad suturam et recte
usque prope apicem continuata ibique angulatim flexa et usque prope marginem lateralem extensa, flava ;
corpore subtus cum pedibus nigro-polito ; clypeo postice parum ampliato, cum fronte dense confluenter
punctato, margine sat elevate ; vertice Isevissimo ; thorace a basi ad apicem angustato, lateribus leviter
arcuatis, angulis posticis subrectis, margine basali medio interrupto ; elytris seriato-punctulatis, seriebus
alternis subobsoletis interstitiis subtilissime punctulatis, 2° lato, parce confuse punctulato ; pygidio aspere
densissime striguloso, opaco ; pectore tenuiter griseo-birto. Tibiae anticse bidentatae, quatuor posteriores
valde surat^ ; tarsi antici articulo unguiculari subtus prope basin dente obtuse elongate. Mesosternum
mediocriter latum, apice paullulum prominente, polite.

Long. 12 millim.

Hah. Guatemala, Panima in Vera Paz 1800 feet {Champion).

Two examples of the same sex, and, judging by the breadth of the larger claw of the
anterior tarsi, probably males ; the joint is, however, not abruptly dilated. The upper
slender part of the cleft claws in the four anterior tarsi is decidedly shorter than the
lower.

57. Anomala chrysomelina. (Tab. Xlli. fig. 4.)

Praecedenti subsimilis, at minor, antice angustata etc. Ovata, convexa, polita, flavo-testacea, seneo-tincta,
elytris flavo-testaceis, maculis utrinque duabus rotundis basalibus (altera prope scuteUum altera bumerali),
fascia angulata mediana maculisque utrinque duabus apicalibus (altera marginali rotunda altera communi
suturali antice cum fascia anguste conjuncta) fulvo-rufis ; capite subtiliter coriaceo, parum punctulato,
clypeo postice dilatato, antice subtruncato, margine parum elevato ; tborace a basi ad apicem angustato,
lateribus leviter arcuatis, basi immarginato, supra disperse punctulato ; elytris punctato-striatis, stria 2*
versus basin confuse duplicata, 5" et 8" valde abbreviata et incompleta. Pygidium subtiliter subsparsim
undulato-strigulosum, nitidum. Tibiae anticse unidentatae (apieali), dente 2° superiore obsolete ; 4 posticse
minime suratae. Pectus et coxae posticae grosse punctata, fere glabra. Mesosternum angustum, sed apice
sat porrecto et antice compresso.

Long. 9 millim.

Hah. Panama, Volcan de Chiriqui {Champion).

One example, probably a female, as the external claw of the anterior tarsi is long and

ANOMALA. 235

slender; the claw is cleft, and the upper tooth is long and moderately robust, though
shorter than the lower. The corresponding claw of the middle tarsi is widely cleft.

In the colour and markings of the elytra the species somewhat resembles Plagiodera
ceneiventris (Biol. Centr.-Am., Coleopt. vi. 1, t. 10. f. 1).

58. Anomala sulcans. (Tab. Xlll. fig. 5.)

Magna, elongato-ovata, nigra, nitida ; antennis castaneo-rufis ; clypeo subsemicirculari postice parum ampliato,
margine reflexo, dense confluenter punctate, fronte et vertice disperse pnnctatis : thorace lateribus leviter
arcuatis, margine basali medio interrupto, supra disperse punctnlato ; elytris sulcatis, sulcis in fnndo
punctulafcis, 2° versus basin minus impresso et confuse punetato, interstitiis convexis; pygidio nitido,
rugulis punctulatis parvis transversis, compresso. Tibite anticae bidentatae, 2 posticis suratis ad apicem
minus constrictis. Mesosternum apice convexo-compressum, nitidum. 5 ? Tarsi anteriores ungue
exteriore profunde et late fisso sive furcato, dente superiore longiore.

Long. 20 millim. § ?

^<25. Nicaragua, Chontales (Janson).

59. Anomala ?

Hah. Nicaragua, Chontales (Janson).

One example, agreeing with the preceding in almost every point except its smooth
very finely striate-punctate elytra. The anterior tarsi are wanting. It is possibly the
other sex of A. sulcans.

60. Anomala rhodope. (Tab. xill. fig. 6.)

Breviter ovata, saturate viridi-cenea (subtus fere nigra), nitida, elytris rufis sutura geneo-tincta ; capite dense
confluenter punetato, vertice Iseviore, clypeo subsemicirculari, margine sat alte reflexo ; thorace postice sat
dilatato, disperse punctulato, margine basali integro ; elytris utrinque sutura et costis tribus mediocriter
convexis l^vibus, striis dense transversim punctatis delimitatis, interstitiis planioribus striato-punctatis,
subsuturali confuse pauciter confluenter punetato. Pygidium sparsim breviter strigulatum vel punctatum,
nitidum. Tarsi anteriores articulo unguiculari subtus crasse dentate. Mesosternum inter coxas sat latum
apice (juxta metasternum) tuberculiforme. S • Tarsi anteriores ungue majore brevi lato, dente superiore
breviore.

Long. 12 millim, 6 9- •

Hah. Mexico, Silao {Salle), Mexico city {Flohr, Edge), Oaxaca {Edge).

Much resembles the European Phyllo^pertha horticola, but it is of more compact
ovate form. An example from Mexico city is figured.

61. Anomala costaricse.

A. cinctce (Say) proxime affinis; minor et elytris semper lucide flavo-testaceis etc. Suboblongo-ovata, viridi-
vel cupreo-genea, nitida, capite antice cuprascenti-rufo, elytris (sutura margineque angustissime fusco
exceptis) lucide flavo-testaceis ; subtus cum pedibus rufo-testacea metallica vel nigro-senea ; clypeo postice
vix dilatato margine elevato, cum fronte densissime punetato, vertice fere Isevi ; thorace ante medium
Bubangulatim dilatato, postice paullo dilatato, angulis posticis subrectis (pauUo obtusis), margine basali
medio interrupto vel subinterrupto, minus disperse punctate ; elytris punctulato-striatis, stria humerali
fere Integra, interstitio subsuturali lato, parce confuse punetato; pygidio arcuatim striguloso nitido;

2HH2

236 LAMELLICOENIA.

pectore fulvo-villoso. Tarsi antici articulo unguiculari subtus valide dentato. Tibiae anticse tridenfcatag,
dente superiore brevi et lato. MesoBternum inter coxas latum, apice (juxta metasternum) transversim
paullulum tumidum. S • Tarsi antici ungue exteriore medio perparum dUatato, dente superiore haud
abbreviato. •

Long. 12-14 millim. c? ? •

Sab. NiCAEAGUA, Chontales (Janson, Belt); Costa B^ica (Van Patten), YoIcslu de
Irazu 6000 to 7000 feet (i?o^ers).

Two examples only from Chontales, the rest of the numerous series being from
Costa Rica.

62. Anomala cincta.

Anomala cincta, Say, Boston Journ. Nat. Hist. i. p. 181 (1835)' ; Complete Writings, ii. p. 654;

Burm. Handb. der Ent. iv. 1, p. 254.
Anomala latreillei, Blanch. Cat. Coll. Ent. i. p. 188 (sec. coll. Salle) (excl. var.)^
? Anomala fulgidicollis, Blanch, loc. cit. p. 187 \

Hah. Mexico ^ ^ ^, Cordova, Teapa (SallS), Cuernavaca, Jalapa, Plan del Rio, Yau tepee
(Edge); Guatemala, Coban ((7A(a!mp^o?^).

Say described, with his usual aptitude, what must be considered the typical form of
this species, in which the elytra are pale tawny-testaceous with the suture (narrowly)
and the outer margin (especially near the shoulders) blackish-brown. The dark brown
colour in many examples is broadly suifused, and in extreme cases spreads over the
whole surface of the elytra ; it tends always to form vague vittae, never fasciae, hence I
very much doubt if the variety described by Blanchard belongs to the same species as
his A. latreillei, to which he refers it.

In some of the localities there occurs what seems to be a variety or varieties in which
the elytra are deep black or bluish-black, metallic bluish-green or coppery, without
trace of pale brown hues. This comes extremely near to A. viridicoUis, Burm., from
Colombia, if it be indeed specifically separable from it. All the examples have a small
third tooth on the outer edge of the anterior tibiae, in both sexes, a broad very sloping
mesosternum thickened and broadly subtubercular at its apex, unicolorous metallic
(very seldom rufous-translucent) thorax and under surface, and the hind margin of the
thorax interrupted (^. e. the marginal stria) in the middle. In A. cincta, type, the
elytra have punctured striae, sometimes faintly, sometimes rather deeply, impressed
with a broad second interstice having a moderate (but very variable) number of con-
fused punctures, and little or no tendency to the formation of geminated striae. The
pygidium is glabrous and shining, and not densely sculptured, with short transverse
striae intermixed with punctures. The variety is as follows : —

Var. A. polychalca._ Caeruleo- vel viridi-senea (capite thoraceque interdum cupreis), polita, elytris variant nigris

leviter metallicis, chalybeis, nigro-aeneis et cupreis, capite interdum fulvo-rufo.
Long. 13-17 miUim.

ANOMALA. 237

Hob. Mexico, Cordova, Jacale {Salle\ Cuernavaca {Salle, Edge), Matamoros Izucar
and Atlisco in Puebla, Jalapa, Oaxaca {Edge) ; Beitish Hoi^dukas, R. Hondo (Blan-
caneaux)', Guatemala, Purula (0^«^mp^o?^).

Some examples of the variety diverge much from the type in colour and sculpture, and
have the appearance of distinct species. Those with brassy-black elytra bear the name
of var. nigri^ennis, DeyroUe (MS.), in the Salle collection.

63. Anomala forreri. (Tab. Xlii. fig. 7.)

A. cinctce var. polychalcce affinis et similis, sed differt tibiis anticis bidentatis pygidioque disperse transverso-
punctato etc. Elongato-ovata, chalybeo-viridis, capita cuprascenti-rufo, elytris viridi-aenescenti-nigris
sericeo-nitentibus, pedibus (plus minusve) antennisque castaneo-rufis ; capita confluenter punctata, vertice
Isevi ; thorace (a supra viso) pestico dilatato, lateribus arcuatis, angulis posticis subrotundatis, sulculo
marginaK baseas sat exarata media perparum interrupta vel integra, supra disperse punctulata ; elytris
punctata-striatis, striis ingequaliter impressis, interstitiis subsuturali et humerali limbeque laterali canfuae
punctatis ; pygidia cenvexa, palito, sparsim transversa-punctata. Tibiae anticee bidentatae. Mesasternum
sat latum, apice anguste tumida nitida. S • Tarsi antici ungue majare lata rabusta denteque superiere
valida, elangata.

Lang. 15-16 millim. S $ •

Eab. Mexico, Presidio (Forrer).
Three examples.

64. Anomala semicincta.

Oblenge-avata, senea vel viridi-senea, elytris abscuriaribus, tharace lateribus elytrisque dimidia pasteriare rufa-
limbatis ; subtus ruf a-testacea senea- vel aurea-nitens, tibiis tarsisque viridi-seneis rufa-maculatis ; capite
densissime seabrasa-punctata, clypee subsemicirculari ; tharace Icnge- ante medium dilatata deinde usque
ad basin recta, angulis pasticis subrectis, margine basali integra, supra minus disperse punctata ; elytris
punctata-striatis (punctis in favealis transversis immersis) undique punctulatis, interstitia subsuturali
lata canfuse rugesa-punctata ; pygidia sat dense canfluenter punctate -rugulasa, senea, interdum medio
flava. Tibiae antieae bidentatae, pasticis valde suratis. Mesasternum sat latum, apice paidlulum por-
rectum, pelitum. $ . Tarsi 4 antici ungue exteriare prafunde fissa.

Long. 15 millim. $ .

Eab. Mexico, Jalapa, Cordova {Edge).
Two female examples only.

65. Anomala ?

Eab. Mexico, Cuernavaca {Edge).

One example of an apparently distinct species, defective in the four anterior tarsi.

66. Anomala variolata.

Ovata, pestice interdum dilatata, nigra, palita, elytris plerumque vage fulva-maculatis vel fulve-bifasciatis vel
teto fulvis, punctis semper nigris ; capite densissime scabraso-punctato, vertice lagviore, clypea brevi et lata,
vel valde transversim quadrata angulis rotundatis, margine acute elevate ; antennis palpisque picea-rufis ;
thorace (a supra visu) a basi ad apicem angustato, medio pauUulum dilatata, angulis anticis acutis, pasticis

238 LAMELLICOENIA.

fere rectis, sulculo marginali baseos excavato sed medio interrupto, supra disperse punctulato ; elytris sat
grosse punctatis et rugulosis, striis disci et suturali interdum paullo regularibus; pygidio polito, sat
disperse punctate rugulis nonnuUis longitudinalibus. Mesosternum mediocriter latum, apice paullo anguste
prominens et tumidum. Tibiae anticse bidentatae. c? . Tarsi antici ungue majore elongate profunde fisso
angulatim dilatato, dente superiore valido baud breviore.
Long. 13-14 millim, c? 2 • ■

Hob. Guatemala, Cerro Zunil 4000 to 5000 feet {Champion).
Many examples.

67. Anomala ?

Hah. Mexico, Peras {Salle).

A single example, female, of a species similar to the above but evidently distinct.
Another allied species, of which I have seen also only one example, occurs in
Venezuela.

68. Anomala cnethopyga.

A. variolatce similis, sed diversa, pygidio densissime sculpturato, opaco etc. Ovata, aenea, nitida, elytris nigro-
vel fusco-aeneis plus minusve fulvo-marmoratis ; clypeo minus transverse, obtuse et late trapezoidali vel
subsemicirculari, margine minimo reflexo, cum fronte densissime scabroso-punctato, vertice dispersius
punctato ; thorace postice ampliato paullo ante medium leviter dilatato, sat fortiter punctate, margine
basali late interrupto ; elytris passim sat grosse rugulosis et punctatis, costis plus minusve distinctis ;
pygidio minute intricato-granulato-strigoso, opaeo. Mesosternum mediocre, inter coxas paullo tumidum,
nitidum. Tibiae anticae bidentatae. c? • Tarsi antici ungue majore robusto medio dilatato, dente superiore
vix breviore.

Long. 12-14 millim. c? $ .

Eab. Guatemala, Dueiias, San Geronimo {Champion).
Four examples.

69. Anomala cupricollis.

Anomala cupricollis, Chevr. Col. Mex. Cent. i. fasc. 4, no. 75 ' ; Burm. Handb. der Ent. iv. 1,
p. 263^

Hab. Mexico i ^, Cordova, Catemaco, Juquila, Oaxaca {SalU), Jalapa {Edge) ; Beitish
HoNDUEAS {Blancaneaux) ; Guatemala, Cerro Zunil 4000 to 5000 feet, Las Mercedes,
Coban, Panzos, Panima, Chacoj, Senahu {Champion); 1 Costa Rica {Van Fatten).

Var. 1. Elytrorum puncta paullo majores et pauciores marginibusque (sicut sutura) anguste infuscatis.

Eab. NiCAEAGUA, Chontales {Janson) ; Panama, Volcan de Chiriqui 3000 to 4000 feet
{Champion).

Var. 2, A. coagulata. Elytra undique maculis confluentibus fuscis. (Tab. XTTT. fig. 8.)

Eab. NiCAEAGUA, Chontales {Belt).

This large and tolerably well-known species is distinguished from the nearly allied

AJfOMALA. ^ 239

forms by its large, especially broad, head. Our numerous series of examples show
scarcely any difference in colours or markings from Mexico to Panama. The fore
tibiae are bidentate ; the mesosternum is prominent and slightly porrect between the
coxee,

Var. 1 is of precisely the same form as the Mexican type, but Var. 2 is more robust,
convex, and dilated behind, and may prove to be a distinct species.

It varies in size from 17 to 24 millim. The smallest are from Jalapa, the largest
from Guatemala.

70. Anomala valida.

Anomala valida, Burm. Handb. der Ent. iv. 1, p. 264 \

Anomala bimaculata, Blanch. Cat. Coll. Ent. i. p. 188 (sec. coll. Salle) ^

Hah. Mexico, Playa Vicente (Salle), Jalapa (Edge) ; Nicaeagua, Chontales (Belt,
Janson); Costa Rica, Volcan de Irazu (Bogers); Panama (MacLeannan). — South
Ameeica 2, Colombia i, Venezuela (coll. Bates).

In this species the punctures of the sutural stria (which is only impressed towards
the apex) collect in oblong blue-black foveas, similar to the geminated lines of foveae on
the disc of the elytra. In many examples there is a dusky spot exactly in the middle
of each elytron.

71. Anomala pupillata.

Anomala pupillat a, Burm. Handb. der Ent. iv. 1, p. 263 \

Hah. Mexico, Cosamaloapam (Salle) ; Guatemala ^, Panzos, Volcan de Atitlan,
Paraiso (Chamjpion).

I am not sure of the identification of this species, as none of our examples are so
small as 6 lines (about 14 millim.), the size given by Burmeister. Our Guatemala
specimens measure from 19 to 24 millim. In all other respects they agree with
Burmeister's description. In the Salle collection A. 'pupillata is identified with a
spotted var. of A. stictico'ptera, Blanch. In colour and markings the resemblance is
complete, but the form of the mesosternum, " ein wenig vorgezogen," is quite different
from that of A. sticticoptera. I doubt, however, whether A. pujpillata is specifically
different from A. valida.

72. Anomala ?

Hah. Nicaeagua, Chontales (Belt).

A single example of a doubtful species allied to A. cupricolUs.

73. Anomala megalia. (Tab. XIII. fig. 9.)

Magna, elongato-ovata, toto fulvo-testacea, antice seneo-tincta, subtus fusco-senea, nitida; clypeo lato sub-

240 LAMELLICOENIA.

quadrato, angulis rotundatis, margine oblique reflexo, toto capite dense punetato; thorace postice dilatato
lateribus arcuatis, dense partim confluenter punctulato, margine basali viridi-seneo ; elytris toto dense
punctulatis, stria suturali versus apicem impressis punctulisque disci plus minusve seriatis ; pygidio dense
undulato-striguloso, opaco, Mesosternum latum, inter coxas tumidum vix porrectum. Tibiae anticss
bidentatse, 4 posticse breves vix suratse.
$ . Tarsi 4 anteriores ungue exteriore profunde fisso.
Long. 22-24 mUlim, $ .

Hah. HoNDUEAS, Ruatan Island (Gaumer); Nicaeagua, Grey town (Belt).
Four examples. A Ruatan specimen is figured.

74. Anomala prsBcellens. (Tab. xiii. fig. lo.)

Oblongo-ovata, valde convexa, Isevis, resplendens, viridi-senea, elytris melleo-flavis anguste seneo-marginatis,,
subtus nigro-senea ; capite lato, subtiliter disperse punctulato, clypeo dense ruguloso transversim quadrato,
angulis rotundatis, margine elevate ; thorace lateribus sat late arcuatis, antice angustato, basi flexuoso,
sulculo basali late interrupto, supra subtilissime disperse punctulato ; elytris subtiliter striato-punctulatis,
nee stria suturali impressa, interstitiis subsuturali (lato) et humerali confuse multipunctulatis, margine
laterali mox pone medium obsolete; pygidium politum, subtiliter undulato-strigulosum. Mesosternum
apice (inter coxas) breviter porrectum. Tibiae anticse bidentatse, posticae sat graciliter suratae. $ . Tarsi
4 antici ungue exteriore profunde fisso.

Long. 20 millim. $ .

Eab. NiCAEAGUA, Santo Domingo in Chontales (Belt).
Two examples.

75. Anomala ?

Hah. Mexico, Guyaco (Sturm, in coll. Salle).
One example of a doubtful species.

76. Anomala plurisulcata. (Tab. XIII. fig. 11.)

A. microcephalm et A. sulcipenni affinis. Subelongato-ovata, toto nigro-cyanea, viridi-aeneo-nigra, euprea vel
thorace viridi-aeneo, elytris cupreis, polita, pectore griseo-villoso, antennis rufis; capite confluenter, vertice
sparsim, punctate, clypeo subsemicirculari margine elevate; thorace medio subangulatim dilatato, sat
fortiter subdisperse punctate, margine basali medio late interrupto; elytris sulcis octo in fundo dense
transversim punctatis, sulco 2° prope basin abbreviate ibique confuse punctate, lateribus striis punctatis
tribus ; pygidio dense confluenter striguloso et punctate, glabro, subnitido. Mesosternum latum, apice
tumido baud conico. Tibiae aaticae bidentatse (interdum dente tertio rudimentario), 4 postic£e suratse..
($ . Tarsi antici ungue majore baud medio dilatato.

Long. 13-15 millim. c? $ .

Hah. Guatemala, Zapote, Las Mercedes, Volcan de Atitlan, Cerro Zunil 4000 to-
5000 feet (Champion).

Numerous examples. A Zapote specimen is figured.

ANOMALA. 241

3. Mesosternum latum, apice conicum, porrectum. Elytra margine laterali in $
haud dilatato-incrassato. (Spilota, partim, Burm.)

77. Anomala granulipyga. (Tab. Xlil. fig. 12.)

Ovata, seneo- vel aureo-fusca (elytris saepe fiindo castaneis), splendens, subtus aureo-testacea, senea vel cuprea,
breviter griseo-pilosa, thorace limbo angusto laterali flavo ; clypeo postiee vix angustato, confluenter punc-
tate, margine anteriore elevate, fronte verticeque discrete punctatis ; thorace postiee pauUo ampliato,
lateribus arcuatis, sat fortiter distanter punctate, basi immarginato; elytris punctulato-striatis, striis
suturali et duabus utrinque prope callum apicalem exaratis, interstitie subsuturali late valde confuse sub-
cenfluenter multipunctato, interstitiis inter hoc et callum bumeralem bis tribus (interstitie confuse punctate
interjecto), limbo apicali confluenter punctate ; pygidio dense acute recumbente granulate et cum propy-
gidio griseo-setoso. Mesosternum inter cexas conice preductum et tumidum. Tibiae anticse bidentatee,
4 posticse mediocriter suratis, sat brevibus. S • Tarsi antici ungue majore dilatato, dente superiore pauUo
lengiore.

Long, 14-17 miUim.

Hah. Guatemala, El Reposo {Champion) ; Panama, Bugaba, Volcan de Chiriqui
(Champion).

;Var. A. chontalensis. Thorax tote metallicus.

Eab. NiCAEAGUA (Salle), Chontales (Belt, Janson).

Closely allied to the North- American A. marginata (Fabr.), but differs in the
sculpture of the elytra. This, although variable, in A. granulipyga always shows six
interstices between the broad second interstice and the humeral callus, separated into
two groups of three each by a confused line of punctures. Sometimes this division is
not clearly perceptible, except behind towards the apical callus, and the broad second
interstice also varies in its definition. A typical example from El Reposo is figured.

78. Anomala vanpatteni.

A. marginatce (Fabr.) proximo affinis, paullo major et differt interstitie secundo late, confuse multipunctato.
Ovata, viridi-aenea, elytris ssepe fulvo-castaneo translucentibus, thorace vitta laterali flava ; subtus seneo-
testacea ; thorace sat dense, versus latera subconfluenter, punctate, angulis posticis fere rectis, basi versus
angules marginato ; elytris profunde punctate-striatis, interstitie 2" late (postiee angustiore) confluenter
multipunctato, caeteris interstitiis cenvexis; pygidio dense subaspere punctato-ruguloso, grisee-seteso.
Mesosternum inter cexas breviter prominulum, conicum.

Long. 14-17 millim. c? $ •

Eab. Costa Rica (Van Patten), Volcan de Irazu 6000 to 7000 feet (Sogers).
A large number of examples.

79. Anomala marginicollis. (A. mldecostata, Tab. XIII. fig. 13.)

Oblongo-ovata, viridi-aenea, capite antice limboque laterali thoracis fulvis, elytris castaneis aeneo-tinctis,
femoribuset tibiis partim flavo-testaceis ; capite dense punctate, clypeo subsemicirculari margine sat alte
reflexe ; thorace post medium vix ampliato, lateribus arcuatis, angulis posticis valde obtusis, sat dense
punctulate, basi immarginato ; elytris densissime subrugulose punctulatis, utrinque costis duabus (inter-
dum tribus) subconvexis, Itevibus, striis erebre transversim punctatis delimitatis, interstitie subsuturali
latissimo, aequaliter punctulato, interstitiis inter costas medio costulis angustis rudimentariis netatis :
pygidio dense transversim punctate-strigoso, griseo-setoso. Mesosternum inter coxas pauUulum preductum.

BIOL. CENTR.-AMEE., Coleopt., Vol. II. Ft. 2, June 1888. 2 II

242 LAMELLICOENIA.

Tibise anticse bidentate, posticse valde suratse. c? • Tarsi antici ungue majore lato, dente superiore
valido nee breviore.
Long. 16-17 millim, c? $ •

Rah. Mexico, Cordova, Santecomapan {Salle), Misantla (Edge).

Five examples. I have adopted Chevrolat's MS. name of the species from the Salle
collection.

Var. valdecostata. Cupreo-senea (elytris interdum obscure viridi-seneis), subtus cum femoribus flavo-testacea,
ventro interdum infuscato ; elytrorum costis quatuor convexioribus, striis profundioribus delimitatis, inter-
spatiis omnibus sequaliter dense confluenter punctulatis.

Long. 18-20 millim. d $ .

Eab. Panama, Bugaba, Volcan de Ghiriqui (Champion).

80. Anomala nitescens. (Tab. Xlll. fig. 14.)

Sat late ovata, capite et tborace splendide viridi-seneis, hoc limbo laterali flavo clypeoque eupreo-fulvo, elytris
rufo-fuscis senescentibus, corpore subtus pedibusque flavo-testaceis ; capite confluenter, vertice sparsim,
punctatis, oculis vix convexis, clypeo lato, postice baud ampliato margineque parum reflexo; tborace
(a supra visu) a basi ad apicem angustato, lateribus arcuatis, basi immarginato sed juxta scutellum paullo
reflexo, dispersissime punctato ; elytris profunde punctato-striatis (punctis confertis transversis), interstitiis
angustis apud discum transversim rugulosis, stria 2* duplicata postice solum impressa, striis lateralibus
plus minusve confusis; pygidio viridi-seneo, subnitido, undulato-ruguloso, griseo-setoso. Mesostemum
inter coxas crasse conicum, porrectum. Tibiae anticse bidentatae, posticae baud suratae.
(S . Tarsi antici ungue majore versus basin angulatim dUatato, dente superiore baud breviore.

Long. 12-14 millim. c? $ .

Hab. Mexico (SalU).

I have adopted the MS. name given to this species by Deyrolle in the Salle collection.
The lateral margin of the elytra (in the female) is just perceptibly dilated and thickened
in the middle.

81. Anomala ?

Hal. Guatemala, Zapote (Champion).

A single example of a species much smaller than A. nitescens, similar in colour and
sculpture, but widely difi'erent in some points of structure. Its position in the genus
is uncertain.

82. Anomala calonota. (Tab. xiii. fig. 15.)

JElongato-ovata, viridi-pomacea, subsenea, subtus splendide viridi-aenea rufo-translucens, tborace limbo laterali
rufo ; clypeo subsemicirculari, margine parum reflexo, dense scabroso-punctato, fronte discrete punctata ;
tborace a basi ad apicem gradatim angustato medio perparum dilatato, basi immarginato sed juxta
scutellum paullo reflexo, toto disperse punctato; elytris punctato-striatis, striis 1^ et 3» 4*que versus
apicem sulcatis, interstitiis subaequalibus, 2° latiore biseriatim subconfase punctato excepto; pygidio
discrete transverse puiictato-ruguloso, piloso, nitido. Mesostemum sat elongatam, porrectum, acute
conicum. Tibiae anticae juxta apicem bidentatae, posticae parum suratae.

Long. 16-17 mUlim. $ .

Eab. Panama, Bugaba (Chamj)ion).

ANOMALA. 243

Three examples. The lateral margin of the elytra is not dilated though gradually
and slightly thickened towards the base, where the marginal stria is broader and more
deeply impressed.

The species has somewhat the form, colour, and aspect of the green Pyronotce of
New Zealand.

4. Mesosternum valde porrectum. (Spilota, partim, Burm.)

83. Anomala chlorotoides.

Elongato-ovata, Isevissima, capite punctato, thorace et elytris subtilissime vix perspicue punetulatis, his punc-
tulis seriatia striaque suturali nulla postice rugulis transversis nonnullis notata ; castanea, ^neo-nitens
thorace saturatius viridi-seneo limbo lato laterali flavo, lateribus arcuatis, basi bisinuato immarginato ;
elytris abbreviatis, margine laterali post dimidium obsolete, stria marginali versus humerum profunda
ibique margine incrassato ; pygidio fere piano, polito, sparsim transverse striguloso. Mesosternum longe
porrectum, apiee subrecurvo. Tibiae antiese apice extus prolongatse, dente 2° parvo obtuso ; postic® vix
suratse, Iseves.

Long. 16 millim. 5 .

Eah. Costa Rica [coll. Bates).

One example. Bears some resemblance to a small Chlorota or Antichira.

84. Anomala specularis. (Tab. XIII. fig. 16.)

Elongato-ovata, resplendenti-viridi-aenea rufo-translucens, vertice thoraceque satnratius argenteo-viridibus^
hoc limbo lato laterali flavo, elytris fulvis argenteo-nitentibus ; clypeo lato, postice pauUulum ampliato,
antice parum arcuato, margine reflexo confluenter, fronte et vertice disperse, punctatis ; thorace postice
ampliato lateribus arcuatis, basi immarginato bisinuato, margine juxta scutellum pauUo reflexo, supra
dispersissime punctulato ; elytris abbreviatis, margine laterali, usque prope apicem integro, versus humeros
gradatim mediocriter incrassato ibique stria marginali latiore et profundiore, regulariter punctato -striatis,
striis 1^-4"^ et 9^ lO^que versus apicem profundioribus, stria 2" versus basin haud impressa biseriatim
punctnlata ; pygidio parum convexo, aspere transversim undulato-strigoso, griseo-setoso. Mesosternum
longe porrectum, robustiim. Tibiae anticae apice extus recte prolongatse, dente 2° parvo propinquo ; postice
parum suratae, Iseves. S • Tarsi antici ungue majore usque prope apicem lato, apice late furcato.

Long. 18 miUim. S .

Hob. Costa Eica ( Van Patten).
One example.

85. Anomala chrysanthe. (Tab. Xlli. fig. 17.)

Magna, ovata, viridi-aenea resplendens, thorace limbo laterali pedibusque fulvo-rufo translucentibus ; capite sat
magno, oculis parvis, scabroso-punctato, vertice laeviore, clypeo lato postice latiore, antice parum arcuato
margineqne reflexo ; thorace pauUo post medium leviter angulatim dilatato, angulis anticis acutis, basi
bisinuato, immarginato, supra sat fortiter et minus disperse punctulato ; elytris post medium latioribus,
utrinque 4-costatis (2 exterioribus nuUomodo convexis, minus distinctis), striis juxta costas versus apicem
profunde impressis, interstitio 2° latissimo confuse, post medium (cum limbo apicali) grossius, scabroso-
punctulato, interstitiis inter costas 1™, 2" et 3"" minus latis confuse punctatis, margine laterali usque prope
apicem extenso, versus humerum gradatim incrassato ibique stria marginali lata et profunda ; pygidio parum

2 II 2

244 LAMELLICOENIA.

convexo, aspere transversim undulato-strigoso, griseo-setoso. Mesosternum longe porreetum et attenu-
atum nee verticaliter crasstiin. Tibias anticEe normaliter bidentatae, posticse hand suratse.
Long. 22 millim.

Hah. Costa Eica [SalU) ; Panama, Volcan de Chiriqui {Champion).
Three examples. A Chiriqui specimen is figured.

86. Anomala lepida.

Anomala {Spilota) lepida, Burm. Handb. der Ent. iv. 1, p. 273 \
Hah. Guatemala 1.

According to the description this species resembles in form our A. calonota, but it
differs much in other respects.

87. Anomala xiphostetha.

Ovata, testaceo-fulva viridi-£eneo relucens, capite, thorace (limbo lato lateral! fulvo) et pectore saturatius viridi-
seneis ; capite seabroso-punctato verfcice laeviore, clypeo antice vix arcuato postice dUatato, margine reflexo ;
tborace a basi ad apicem angustato, lateribus arcnatis sat fortiter et gequaliter (lateribus crebrius con-
flnenter) punctato, basi immarginato, bisinuato, juxta scutellnm margine leviter reflexo ; elytris striato-
punctatis, disco rugulosis, costa unica distincta pauUo convexa striis duabus impressis delimitata, interstitio
2° lato confuse punctato, margine laterali ( S ) baud dilatato sed versus basin gradatim incrassato striaque
marginali profunda ; pygidio parum convexo, aspere punctato (vix striguloso), longe griseo-setoso. Meso-
sternum longe porreetum et attenuatum nee verticaliter crassum. Tibi© antics bidentat®, posticse baud
suratae. ^ • Tarsi antici ungue majore fere usque ad apicem sequaliter lato, dente superiore paullo
breviore.

Long. 13 millim. S .

Hah. Costarica (Van Patten).
Two examples, both males.

88. Anomala phosphora. (Tab. XIII. fig. 18, $ .)

A. xiphostethm simillima, differt tantum tboraee lateribus rufo-translucente nee distincte vittatis elytrisque
alitor sculpturatis, baud rugulosis, punctato-striatis, interstitiis plurimis convexis, 2° baud lato, sed stria 2*
biseriatim punctata postice sat profunde impressa limboque laterali striis punctatis quatuor profunde
impressis ; clare viridi-senea fulvo-relucens, splendida. S $ • Elytra paullo ante medium leviter rotundato-
dilatata, ibique margine ( c? minus $ magis) incrassato.

Long. 11-12 millim.

Hah. Panama, Volcan de Chiriqui {Cham'pion, Trotsch).

This and the preceding are apparently closely allied to A. lewyi, Blanch., from
Colombia.

Seven examples.

ANOMALA. 245

6. Mesosternum hreviter 'porfectum, conicum. Elytra margine later all {prcecipue in $ )
ante medium dilatato-incrassato. Mesosterni epimera juocta humeros acute ascen-
dentia. (Incl. Pachystethiis, Blanch.)

89. Anomala micans. (Tab. Xlll. fig. 20.)

Anomala micans, Burm. Handb. der Ent. iv. 1, p. 269 \

Hah. Mexico i, Cordova, Toxpam, Yolotepec, Chiapas {Salle), Jalapa, Chilpancingo,
Cholula in Puebla (Hoge), Oaxaca {8alle, H'dge).

The lateral margin of the elytra is dilated before the middle and wavy thence to the
base like the other species of the section ; but the dilated part is not so much thickened,
even in the female. The mesosternal process is rather short, thick, and obtusely conical.
The base of the thorax is immarginate, and the outer claw of the anterior tarsi broad
and not gradually tapering to the apex.

In colour it varies from the green crown and thorax and green-tinged castaneous
elytra, as described by Burmeister, to coppery or golden head and thorax and rich gold-
tinged red or even violet-coloured elytra ; and the pygidium, generally brassy-green, is
sometimes clear yellow. The coppery examples are from Yolotepec and Oaxaca. The
middle of the base of the thorax is often yellow as well as the sides ; very rarely the
thorax is entirely brassy-green.

90. Anomala xantholea.

A. micanti affinis ; angustius ovalis, testaceo-fulva argenteo-viridi-tincta, vertice mactdisque duabus thoracis
discoidalibus viridi-seneis, elytris saepe anguste nigro-marginatis ; clypeo semicirculari, cum fronte con-
fluenter, vertice discrete, punctate ; thorace postice latiore, ante medium leviter dilatato, basi bisinuato,
immarginato, sed interdum in sinubus tenuiter marginato, supra sat dense hie illic subconfluenter punc-
tato ; elytris sicut in A. micanti, striis 14 profundis crenatis interstitiis angustis, stria humerali supra
callum humeralem dilatata, multipunctata, interstitioque 3" (a margine) antice et postice abbreviato;
ab A. micanti differt striis 2^ et 3* (a sutura) semper integris. Pygidium sat grosse transverse rugatulum
sed politum, apice excepto glabrum ; aut laete viridi-seneum, aut testaceum viridi-bimaculatum. Meso-
sternum sicut in A. micanti sed obtusius, vix conicum. Elytra margine laterali undulato, mediocriter
dilatato et incrassato.

Long. 10-11 miUim. S 2-

Hab. Mexico, Cordova {SalU, S'oge), Toxpam (SalU).

Var. 1. Elytrorum striis minus acute impressis, elytris semper concoloribus.

Hah. NiCAEAGUA, Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui (Champion).

Var. 2. Latins subquadrato-ovata ( $ ).

Hah. NiCAEAGUA, Chontales (Belt).
Fifteen examples.

246 LAMELLICOENIA.

91. Anomala villosella. (Tab. xiii. fig. 19.)

Phyllopertha villosella, Blanch. Cat. Coll. Ent. i. p. 179\

Hah. Mexico 1, Izucar (Salle), Matamoros Izucar in Puebla, Iguala in Guerrero

Evidently closely allied to A. micans and A. xantholea, notwithstanding the hairy
clothing of the whole body, which is very dense and erect on the crown and thorax,
and long, ashy-coloured and recumbent on the pygidium, denser still on the propygidium.
The elytra have fourteen similarly punctured striae with narrow interstices, but they are
in some examples somewhat confused by transverse rugse ; the median dilatation, espe-
cially in the female, is well marked and explanated, but not much thickened. The
chief difference from A. micans and others of the group lies in the thorax having a fine
basal margin; this, however, is sometimes widely interrupted in the middle, and it does
not then differ essentially from A. xantholea, in which the margin is often very distinct
along the sinus on each side. The greater claw of the anterior tarsi of the male is
especially wide nearly to the apex, where it has almost the appearance of being
obliquely truncated, the upper tooth being very slender and somewhat shorter.

The general form is compact and ovate, and the legs and tarsi are robust ; the species
cannot therefore be referred to Phyllojpertha.

92. Anomala nitidula.

Anomala nitidula, Blanch. Cat. Coll. Ent. i. p. 190 \

Hah. Guatemala [Morelet, Salle), Dueiias (Salvin), Escuintla, San Geronimo, Quezal-
tenango 7800 feet {Champion) ; Hondueas (Salle) ; Costa Eica (Van Patten).

Blanchard says " thorace toto viridi ;" but not one amongst the many examples I have
examined is without at least a narrow, if somewhat ill-defined, yellowish lateral vitta.
The base of the thorax is emarginate, except in some individuals, on the sides near the
angle ; the elytra have only thirteen punctured striae, one of which (the eighth) is much
abbreviated, and the lateral margin is dilated and thickened before the middle. The
pygidium is convex, sometimes gibbous, posteriorly glossy metallic with a few long
hairs. The mesosternum is prominent, briefly conical and laterally compressed. The
colour above is apple-green with a metallic lustre, but sometimes (often the elytra
only) testaceous with pale green lustre, and the thorax with two broad dark brassy-
green vittse. The locality given by Blanchard ^ is " Amer. Merid."

93. Anomala nutans. (Tab. Xlii. fig. 21.)

Late ovata, fere sicut A. vidua supra glabra, toto nigra vel supra fulvo-castanea vertice thoraceque medio nigris,
pedibus rufo-testaceis, raro supra toto pedibusque flavo-testaceis, interdum toto nigra, callis humeral! et
apicah rufis ; capite toto confertim punctato, clypeo transversim quadrato, angulis rotundatis, margine sat
alte reflexo ; thorace a basi ad apicem angustato, paullo ante medium leviter obtuse dilatato, basi bisinuato
immarginato, supra sat dense et grosse transversim subconfluenter punctato ; elytris 11-sulcatis, sulcia

ANOMALA. 247

transversim punctatis, nonnuUis apicem haud attingentibus, 2° interdum confuse pimctato minus impresso,
interstitiis convexis, margine flexuoso-dilatato, 2 valde incrassato. Pygidium c? valde, $ parum convexum,
transverse pnnctatum, glabrum. Mesostermim porrectum compresso-conicum. Tibiae anticae bidentatae,
posticse pauUo suratse. S • Antennae rufse, clava valde elongata nigra; tarsi antici nngne majore robusto,
dente superiore pauUo breviore.
Long. 7-11 millim.

Hab. Mexico, Juquila {Salle, Hoge), Jalapa (H'dge).

I have adopted the MS. name given to this distinct species in the Salle collection.

94. Anomala vidua. (Tab. XIV. figg. l, 2.)

Popillia vidua, Newman^ Trans. Ent. Soc. Lond. iii. p. 48 (1841) \

JPachystethus viduus, Blanch. Cat. Coll. Ent. i. p. 201 ^.

Anomala minuta, Burm. Handb. der Ent. iv. 1, p. 270 (nee Fabr.?).

Popillia sticticollis, Newm. 1. c. p. 48 ^.

Popillia semirufa, Newm. 1. e. p. 49 *.

Hah. Mexico ^ ^ ^, Orizaba, Oaxaca (Salle), Coatepec, Jalapa [Edge), Vera Cruz ^.

All the three colour-varieties, described as species by Newman, with apparently rare
intermediate gradations, are found at Orizaba. In each variety, certainly in two of
them, there are males and females, the colours are therefore not sexual as Burmeister
described them.

We have received a large number of examples from Orizaba and also from Coatepec ;
two from the latter locality are figured.

II. Tarsi anterior es unguihus haud apice fissis, dente superiore dor salt setiformi;
intermedii unguihus dente jparw vel simplicihus. Tihice posticce breves, suh-
triangulares.

95. Anomala rhizotrogoides. (Tab. XIII. fig. 22.)

Anomala rhizotrogoides, Blanch. Cat. Coll. Ent. i. p. 186 \
Hah. Mexico i. Vera Cruz (Salle, Hoge).

This species differs from the typical Anomalce in many points of structure ; the ligula
is narrowed and entire at its upper edge ; the labrum is straight, and without the usual
concavity in the middle, besides being extremely short, with the deflexed apex short
and obtuse; the vertical edge of the semiovate concave clypeus is thickened and
projects in front considerably beyond the mouth; and, lastly, the hind tibiae are short,
about two thirds the length of the tarsi, and dilated from base to apex. The antennal
club (especially in the male) is very long, slender, and curved, the mesosterniim rather
narrow and declivous, the anterior tibiae bidentate, and the mandibles and maxillae short,
robust, and dentated. The differences in labrum and tibiae might justify the generic
separation of A. rhizotrogoides if they were found to hold good in the few species

248 LAMELLICOENIA.

nearest allied to it ; but one or other of them prove, as in other small groups of the
genus, to be quickly modified.

Among the Old World Anomaloe the species seems nearest allied to the African
A. (IIoplojous) atripleo! and A. vetula.

Found in abundance by Herr Hoge.

96. Anomala ?

Eab. Mexico, San Bias (Forrer).

One defective example only. The hind tibiae are three fourths the length of the
tarsi ; the clypeus and labrum are formed nearly the same as in A. rhizotrogoides.

97. Anomala ?

Eab. Mexico, Guanajuato [Salle).

One defective example of a very distinct species much smaller than the preceding.

98. Anomala attenuata. (Tab. xiii. fig. 25.)

Angusta, pallide testaeea, thorace disco pauUo obscuriore elytrisque vitta lata eommuni (sat vaga) suturali fusca ;
capite grosse sparsim punctato, clypeo angusto semiovato, grosse corifluenter punctato, margine alte elevato ;
thorace parvo, usque ante medium pauUo dilatato deinde usque ad basin paullo angustato, disco utrinque
oblique impresso, punctis magnis sed parum impressis consperso, margine basali integro ; elytris angustis,
punctato-striatis, costa unica utrinque distincta convexa, interstitiis transversim rugosis, 2" baud lato, vage
subuniseriatim punctato. Pygidium punctatum, longe erecte pilosum. Mesosternum angustissimum, coxae
contiguse. Tibise antieae apice extus prolongatse, dente 2° obsoleto, Antennarum clava valde elongata..
Tibiae posticae sicut in A. rhizotrogoide breves triangulares.

Long. 5-6| millim.

Eab. Mexico, Vera Cruz (Salle, Edge).

Three examples. On dissection the mouth-organs are found to be much less robust
than in A. rhizotrogoides, the labrum is essentially similar, but smaller, and the
mandibles are reduced to very thin, flat blades, closely applied to the roof of the
mouth-cavity.

99. Anomala castaniceps. (Tab. xili. fig. 23.)

Oblonga, convexa, castaneo-nigra, capite, pedibus et interdum thorace castaneo-rufis, politis, elytris paruia
nitidis ; clypeo subsemicirculari interdum antice angustato, margine sat alte reflexo, confluenter punctato,
f route crebre, vertice sparsim, punctatis, punctis minutis intermixtis ; thorace medio dilatato, postice hand
ampliato, margine basali integro, supra disperse punctato ; elytris subtilissime alutaceis sericeo-subopacis,.
striato-punctulatis, striis geminatis juxta costas solum paullo impressis, circa caUum apicalem profundis,
stria suturali a sutura distanti, interstitio 2° lato antice confuse punctato. Pygidium baud profunda
punctatum, glabrum. Mesosternum valde angustatum. Tibise antieae bidentatae, posticis gracilibus-
elongatis paullo suratis.

Long. 11-14 millim. c? $ .

Eab. Mexico, Jacale (Salle), Las Vigas (Edge), Ciudad in Durango (Edge, Forrer).

ANOMALA. 249

The short setiform rudimentarv tooth on the convex side of the external fore tarsal
claw is sometimes absent. The hind tibiee in this species are equal in length to
the tarsi.

Named A. erythrocephala, Chevr,, in the Salle collection, a name which cannot be
adopted, as it was used by Fabricius for a species of the genus.
A specimen from Jacale is figured.

100. Anomala ?

Hah. Mexico [Salle, ex coll. Sturm).

Closely allied to A. castaniceps, and perhaps only a well-marked local form of it,
differing chiefly in colour. A single example.

III. Ungues omnes simpUces.

101. Anomala carinifrons. (Tab. xiii. fig. 24.)

Oblongo-ovata, toto flavo-testacea, nitida; capite densissime punctato-scabroso, vertice laeviore; clypeo deflexo,
sat anguste quadrato, angulis anticis obtusis, margine alte reflexo, sutura frontali cariniformi ; thorace
brevi, paullo ante medium latiore, lateribus late arcuatis, margine basali integro, supra sat dense et fortiter
punctato ; elytris striis punctatis decern, quarum l*-7™ profundis et 3 lateralibus vix impressis ; costis
tribus paullo convexis, interstitio 2° parum latiore, dimidio basali confuse sub-biseriatim punctato.
Pygidium convexum, nitidum, parce punctatum. Mesosternum sat angustum, declive, planum. S • Tarsi
antici ungue raajore sat gracile, baud dilatato ; antennarum clava valde elongata, articulis 2"-6'" brevibus,
2<'-4'" subglobosis.

Long. 13 millim.

Hab. Mexico, Chihuahua city (Hoge).

Evidently a close ally of A. cavifrons, Lee, of Texas and New Mexico, differing
only in its larger size and strongly sculptured elytra. It is probably also found within
the United-States boundary, as I have an example from Arizona sent by Morrison.

102. Anomala ?

Hab. Mexico, San Andres Chalchicomula in Vera Cruz (Hoge).

One mutilated example of a distinct species closely allied to the foregoing.

Species incertce sedis.

103. Anomala tessellatipennis.

Anomala tessellatipennis, Blancli. Cat. Coll. Ent. i. p. 186 \
Hab. Mexico i.

104. Anomala — — ?

Hab. Mexico, Playa Vicente (Salle).
BIOL, centr.-amer., Coleopt., Vol. 11. Pt. 2, August 1888. 2 KK

250 LAMELLICORNIA,

105. Anomala ?

Hah. Guatemala (Salle).

A single imperfect example. '

106. Anomala ?

Eah. Guatemala, Purula (Champion).

A single mutilated example, with the anterior tarsi broken off.

EPECTINASPIS. '

Epectinaspis, Blanchard, Cat. Coll. Ent. i. p. 180 (1850); Lacordaire, Gen. Col. iii. p. 326 (1856).
Strigoderma (pars)^ Burmeister, Handb. der Ent. iv. 2, p. 515 (1844).

This genus, founded by Blanchard on a single Mexican species, is sufficiently distin-
guished from Anomala by its oblong form, convex thorax, and long quadrate clypeus,
which, added to the deep and close striation of the elytra, give the species a distinct
facies. There are, as usual in the subfamily, no very definite structural characters to
distinguish the genus from Anomala, Strigoderma, or Phyllopertha. One of the
principal is the long and robust, cheliform claw-joint of the anterior tarsi of the
males. Of the characters derived from the parts of the mouth on which Blanchard
in part founded the genus, that furnished by the labrum is the only one of importance.
This he terms " obtectum," which is scarcely accurate, as the upper basal part is plainly
visible, though forming only a narrow transverse piece ; and it is distinguished from the
same part in Anomala in being without trace of a central depression or emargination.

1. Epectinaspis mexicana. (Tab. XIV. fig. 3.)

Anomala [Phyllopertha) mexicana, Burm. Handb. der Ent. iv. 1, p. 241 \
Strigoderma mexicana, Burm. Handb. der Ent. iv. 2, p. 515.

Hah. Mexico ^ Cordova, Orizaba (Salle), Jalapa, Juquila (Hoge).

Varies in size from 7 to 12 millim. The black variety mentioned by Burmeister
appears to be rare, at least there are very few of it among the very large number of
examples we have received. The lateral margin of the elytra, although slightly
expanded before the middle, is scarcely at all thickened, even in the female.

A Cordova specimen is figured.

2. Epectinaspis pictipennis. (Tab. XIV. fig. 4.)

Quam B. mexicana paullo magis ovata, nigra, nitida, thorace elytrisque testaceo-f ulvis, illo plaga dorsali ramosa
variabili, his vitta utrinque obliqua plagaque postscutellari (interdum pfer suturam continuata) nigris :
froDte confluenter punctata, clypeo c? quadrato-subporrecto (antice paullulum dilatato-rotundato), margine
alte reflexo ; thorace medio subangulafcim dilatato, antice valde angustato, postice lateribus parallelis, angulis
anticis valde acutis, posticis rectis, margine basali angusto integro, disco prope marginem declivi, passim

EPECTINASPIS. 251

sat confertim punctato ; elytris punctulato-sulcatis, sulco 2" prope basin obsolete confuse grosse punctato,
interstitiis sequaliter convexis. Pygidium subtiliter punctulato-alutaceum, longe pilosum. Tibiae anticae
bidentatae, posticae nullo modo suratse, grossissime elongato-punctatae. Mesosternum depressum. cJ • Tarsi
antici ungue majore lato basi subito subtus angustato, dente superiore paullo breviore. Elytronim margo
lateralis mox post humerum esplanato-dUatatus epipleuraque incrassata.
Long. 11-12 miUim.

Sah. Mexico, Juquila [Hoge). Four examples, all males.
Var. 1. Testaceo-rufa cupreo-tincta, eapite obscuriore.

Hah. Guatemala {Salle). One example, male.

Far.? 2, minor (8| millim.). Caput et thorax caprascenti-rufa, hoe confluenter vel rugoso-punctato, elytris
nigris.

Hah. Guatemala {Salle). One example.

3. Epectinaspis opacicollis. (Tab. XIV. %. 5.)

Sat elongato-ovata, pallide flavo-testacea, eapite viridi-aeneo corporeque subtus nigro, thorace interdum macula
anteriore triangular! fusca ; vertice, thorace et scutello dense erecte flavo-pilosis, elytris nitidis, scutello
viridi-aeneo, densissime scabriculoso ; eapite densissime scabroso-punctato, clypeo quadrate, porreeto, antice
paullulum dilatato-rotundato, margine reflexo ; thorace ante medium paullo obtuso dilatato, angulis anticis
acutis, posticis rectis, supra densissime alutaceo-punctulato ; elytris sat valde punctato-striatis, striis 2^ et
8" solum prope apicem integris, antice late dilatatis baud impressis, grosse confuse punctatis. Pygidium
valde convexum, sat grosse alutaceum, griseo-hirsutum. Elytrorum margo ( S ) baud perspicue dilatatus
paullo incrassatus. Ungues antici sicut in E. pictipenni.

Long. 9-11 millim. cJ .

Hah. Mexico, Cuernavaca {Salle, Hbge).
Four examples, all males.

4. Epectinaspis clielifera. (Tab. XIV. fig. 6.)

Ovata, flavo-testacea, nitida, eapite postice thoraceque antice medio (interdum disco toto) nigro-fuscis ; eapite
confertissime punctato, clypeo semicirculari, piano, margine angustissime reflexo ; thorace breviter setoso,
lateribus late arcuatis antice angustato, angulis posticis obtusis, minus dense punctato, punctis minutis
intermixtis, margine basali angusto integro ; elytris minus profunde punctato-striatis, sub callo humerali
profunde oblique impressis, margine lateral! ante basin valde fiexuoso parum incrassato. Pygidium sat
sparsim punctatum, longe pilosum, nitidum. Mesosternum valde depressum. Tibiae anticEe bidentatfe, posticee
robust^e, nullo modo suratae, punctatae, S • Tarsi antici robust!, articulo uhguicular! valido cheliformi,
ungue majore elongate, prope basin angustato deinde obtuse dentato et lateraliter inflecto, dente superiore
parum breviore. 5 ? Toto nigra, thorace et pygidio glabris.

Long. 8-11 millim.

Hah. Panama, Bugaba {Champion), Chiriqui {Irotsch).
Six examples.

5. Epectinaspis moreletiana. (Tab. XIV. fig. 7.)

Phyllopertha moreletiana, Blanch. Cat. Coll. Ent. i. p. 179 '.

Hah. Mexico, Tabasco {Morelet ^) ; Guatemala, Duenas, Zapote, Volcan de Atitlan
[Champion)., Chinautla 4100 feet {Salvin).

2 KK 2

252 LAMELLICOEMA.

The head and thorax are black, opaque, the latter clothed with a very dense, erect,
and soft light-coloured pile. The elytra are pale reddish-brown, subopaque; in one
example only (captured by Mr. Salvin at Chinautla) are they variegated with black — a
broad fascia behind the middle, and a second spot on each side near the tip of the
scutellum. The scutellum is like the thorax opaque, black, and coarsely shagreened.
The head, especially in the male, has the long, quadrate form and upturned edges of
the typical species ; and E. moreletiana is undoubtedly congeneric with E. mexicana.

As in many species of Anomala^ of the A. micans group, the sharp ascendent edge of
the mesosternal epimera rises in front of the shoulders of the elytra so as to be visible
from above. This feature shows the close relationship of those forms with Epectinaspis
and Strigoderma. An example from Dueiias is figured.

6. Epectinaspis ambigens.

Phylloperthce horticolce similis, sed thoraee angustiore et antice gradatim attenuate ; clypeo ( 2 ) sat angusto et
elongato-subquadrato, antice cum angulis rotundato margineque reflexo. Mger, capite thoraceque opacis,
hoc dense erecte piloso, elytris eastaneo-rufls ; capite toto densissime confluenter punctato ; thoraee medio
fortiter breviter dilatato, antice gradatim angustato, postice lateribus parallelis, dorso sicut in E. mexicana
convexo et juxta basin subito deelivi, margin e basali integro, supra punctato- alutaceo ; elytris grosse et
subconfuse punctato-striatis, sub callo humerali profunde impressis, margine laterali ( $ ) vix ampliato nee
incrassato ; abdomine nigro-seneo, pygidio nitido, arcuatim striguloso, sparsim piloso. Mesosternum sat
latum et depressum, sed apice (juxta metasternum) paullo tumidum. Tibiae anticee bidentatse, posticas
baud surata3, grossissime elongato-punctatse. Mesosterni epimera paullo ascendentes et tumida nee acute
margin ata.
5 . Ungues exteriores 4 profunde fissi.

Long. 10 millim. $ .

Rab. Beitish Honduras, R. Sarstoon (Blancaneaux). Two female examples.

The obtuse subascendent mesosternal epimera are unlike anything to be seen in other
species of Epectinaspis^ where, if visible at all, they appear in a sharp carinated edge as
in many Anomalce. The convexity of the hind part of the thorax and the form of the
clypeus (which is no doubt more pronounced in the unknown male) show that the
species belongs to Epectinaspis.

STEIGODERMA.

Strigoderma, Burmeister, Handb. der Ent. iv. 1, p. 310 (1844); id. ibjd. iv. 2, p. 514 (1855);
Lacordaire, Gen. Col. iii. p. 336 (1856).

A genus, so far as at present known, peculiar to America, and ranging far into the
northern temperate zone, as well as throughout the intertropical region as far south as
Tucuman. It is well represented in Mexico and Central America ; and the numerous
species we have to add to the genus show a far wider range of sculpture, as well as form,
than was anticipated when the generic name was given. But, however diverse, they
resemble each other much more than they do any of the varied forms of Anomala,
and the tumid ascendent mesosternal epimera afford a good distinguishing character

STEIGODEEMA. 253

in cases of doubt. In all the species the males may be distinguished from the opposite
sex by the more attenuated abdomen, concave on its ventral surface, a diflference which
is very rarely observable in the Anomalce.

I. Striis elytrorum quinque inter suturam et callum humeralem.

1. Strigoderma marginata.

Melolontha marginata, Olivier, Entom. i. no. 5, p. 70, t. 3. if. 23 a, b (1789) ^

Melolontha cincta, Fabr. Ent. Syst. i. 2, p. 175 (1792) \

Melolontha ridens, Eabr. Syst. Eleuth. ii. p. 178 (1801) ^

Melolontha glabr at a, Fabr. Syst. Eleuth. ii. p. 178*.

Var. Strigoderma pygnKsa (Fabr.) (partim), Burm. Handb. der Ent. iv. 1, p. 311.

Hah. VKSKhiik, Chiriqui (Trotsch), San Feliz, San Lorenzo (Champion). — South
Ameeica^ ^ Amazons ; West Indies, Guadaloupe ^ ^.

A very few examples only were captured in the State of Panama — some of the typical
colour as described by Olivier, and agreeing with specimens from the R. Amazons ; one
black, with yellow elytral spots (the var. glalrata) ; and others all black. The species
differs from its immediate allies of Central America in the thorax being sparingly and
distantly punctured, and having only one or two rather small rounded fovese on each side.

2. Strigoderma intermedia. (Tab. XIV. fig. 8.)

S. marginata differt solum thorace valde insequali, foveis duabus iitrinque ssepe confluentibus sulcisque vagis

disci tribus, in impressionibus alutaceis partibusque elevatis discrete puuctatis.
Long. 5-7 millim. J § .

Hah. Mexico, Frontera in Tabasco (Hoge) ; British Honduras, E. Sarstoon (Blanca-
neaux) ; Guatemala (Salle), Cubulco, San Geronimo, El Jicaro (Champion).

A large number of examples, nearly all coloured as in the typical S. marginata ; a
few examples only having in addition to the black elytral border a transverse median
fascia of the same colour. The legs and sides of the thorax are sometimes testaceous-
red. The thorax is glabrous.

A well-marked specimen from Frontera is figured.

3. Strigoderma mexicana.

Strigoderma mexicana, Blanch. Cat. Coll. Ent. i. p. 202 \

Hah. Mexico i, Orizaba, Playa Vicente (Salle), Jalapa, Cordova, Tapachula in Chiapas
(Hoge).

Distinguished from S. intermedia chiefly by the pubescent thorax, the surface being
sparsely clothed with erect hairs. In this it agrees with the following, S. protea, but
differs in the very uneven surface of the thorax (resembling that of S. intermedia), the
elevations of which are shining and coarsely punctured, not alutaceous-opaque. A

254 LAMELLICORNIA.

short, highly polished, elevated dorsal line or space near the base between the basal
ends of the two broad oblique discal sulci, which never fails in the large series
examined, also distinguishes the species. Blanchard's phrase " prothorace ....
ruguloso .... lineola Igevi notato," and the numerous examples labelled S. mexicana,
Blanch., in the Salle collection show that this is the species Bianchard had in view, and
not S. protea.

4. Strigoderma protea.

Strig derma pygnKBa (Fabr.), y ox. protea, Burm. Handb. der Ent. iv. 1, p. 312'.
Strigoderma nigrita, Blanch. Cat. Coll. Ent. i. p. 202 ^

Hah. Mexico i, Vera Cruz 2, Puebla, Izucar {Salle), Guadalajara, Colima city,
Matamoros Izucar in Puebla [Hoge).

The thorax is almost evenly convex, without foveas or very distinct impressions, and
is wholly alutaceous, opaque, and pubescent. In comparing the large series of this and
the two preceding species the present appears to be generally of larger size and more
diverse in the colours of the elytra, the state of the typical S. marginata being exceedingly
uncommon. Rare examples occur which are partly intermediate, not only between this
and S. meocicana but also between S. intermedia and S. margmata, and prove that
they are all forms of one stock, barely segregated into species.

II. Striis elytrorum sex inter suturam et callum humeralem,

5. Strigoderma vestita.

Strigoderma vestita, Burm. Handb. der Ent. iv. 1, p. 314 '.

Hab. Mexico 1, Orizaba, Oaxaca {Salle), Plan del Rio, Jalapa [Edge) ; Guatemala,
Dear the city {Salvin), Sinanja {Champion) ; Costa Eica {Salle, Van Patten).

Distinguished by the dense and strong subrugose punctuation of the thorax ; the latter
is without foveas or depressions, narrow, and subangularly dilated in the middle, with
porrect acute front and hind angles in the male, broader and less acutely angular in the
female, its colour being variable — sometimes wholly dark greenish metallic, but more
often tawny-red, like the elytra, with or without a green patch on its anterior part, the
curiously declivous lateral margins being sometimes yellow, but not the basal margin.
The under surface and pygidium and the apical margin of the propygidium are densely
clothed with long recumbent tawny-ashy hairs. The mesosternum is subvertical, slightly
tumid at the apex. The lateral margin of the elytra, in the female only, has an abruptly
formed, much thickened and vertically arcuated, wheal.

In Guatemala examples occur with the elytra lineated with fuscous.

■*

STEIGODEEMA. 255

6. Strigoderma sallsei. (Tab. XIV. fig. 9.)

S. vestitcB affinissima, differt solum thorace semper seneo vel cupreo concolor et sicut pygidio et corpore subtus

dense incumbenter cinereo-piloso.
Long. 7-8 millim. d 2 -

Hah. Mexico, Cuernavaca [Salle, Edge), Parada, Tepansacualco, Juquila, Capulalpam,
Yolotepec (Salle).

When the pubescence of the thorax is abraded it is difficult to distinguish this species
from S. vestita. The sexual characters and sculpture are similar. The thorax in
*S'. sallwi, however, is less elongated in both sexes, and the closely packed punctures
are less confluent and confused ; its colour also is always dark brassy-green or dull
cupreous — there is no example in the tolerably large series examined tawny-red in
front, which seems to be the most prevalent colour in S. vestita. A specimen from
Juquila is figured.

7. Strigoderma longicollis. (Tab. XIV. fig. 10.)

Depressa, thorace angusto et elongato, supra glabra, fulvo-castanea, nitida, vertice, tborace vitta vaga mediana,
scutello suturaque (interdum elytris totis) fusco-nigris ; capite dense ruguloso-punctato ; thorace ante
medium subito dilatato, antice longe et gradatim angustato, postice valde sinuate, basi lato angulisque
posticis exstantibus acutis, dorso utrinque inaequali sulcis vagis et latis obliquis impresso ibique grosse
scabroso-punctato, medio dorso convexo, discrete punctate, basi valde flexuoso medio sublobato, carinaque
obtusa laterali prope marginem a basi usque ad dilatationem ducta ; elytris latis deplanatis utrinque post
seutellum concavis calloque humerali valde elevate, sicut in 8. vestita punctato-sulcatis, sulcis sex inter
suturam et callum bumeralem. Subtus et propygidii apex dense incumbente cinereo-pilosa, pygidio
subglabro, aspere punctato, nitido. Mesosternum latum, subverticale, apice nullo mode porrectum.

Metasternum S medio densissime erecte birsutum.

Long. 9 millim.

Hab. Mexico, Orizaba [Salle).
Three examples.

8. Strigoderma contracta. (Tab. XIV. fig. ii.)

S. longicoUi afBnis ; multo minor. Breviter ovata antice angustata, parum convexa, nigro-aenea, elytris nigris,
vel cuprascenti-castaneo-rufa, nitida; capite baud profunde confluenter punctato, clypeo transversim
quadrate, angulis rotundatis, margine sat alte reflexo; tborace angusto, ante medium dilatato, antice
longe et gradatim angustato, postice valde sinuate, angulis acutis, posticis exstantibus, supra toto basi
tumore flexuoso margine basali fere parallelo et per latera continuato, margine antice utrinque incrassato
discoque oblique impresso, toto disco disperse baud profunde punctato; elytris utrinque post seutellum
concavis, profunde punctato-striatis, interstitiis l^-S"" convexis, 9° angusto depresso. Pygidium confluenter
baud dense strigulosum cum propygidio corporeque subtus cinereo-pubescens. Mesosternum subverticali
apice tumidum sed baud porrectum. $ . Elytrorum margo ante medium perparum arcuatus et incrassatus.

Long. 6-6| millim. .

iTaS. Mexico, Tepansacualco (/S'a^/^) ; Guatemala, Zapote ((7^«mp^07^).

Five examples. The single Guatemalan representative is a female, and difi'ers from
the others in the flexuous wheal across the base of the thorax and other inequalities

256 LAMELLICOENIA.

being a little less elevated, and in the pygidium and under surface of the body being
more densely clothed with laid ashy hairs. We figure the individual from Zapote.

9. Strigoderma physopleura. (Tab. XIV. fig. 12.)

Parva, ovata, viridi-senea, nitida, thoraee anguste flavo-cincto, elytris rufo-testaceis, limbo toto (vel dimidio
posteriore)interdum nigro; capite mimis profunde confuse alveolato-punctato, clypeo qiiadrato margine
alte elevate ; thoraee quadrato, angulis posticis minus exstantibus, ante medium mediocriter dilatato,
cinctura elevata flava intramarginali Integra, dorso grosse subdeuse rugoso-punctato absque foveis ; elytris
punctato-sulcatis ; corpore subtus dense cinereo-hirto, pygidio fere nude, polite, parce striguloso. Meso-
sternum latum, declive, apice baud prominente. c? . Tarsi antici ungue majore valde elongate, mediocriter
late, dente superiore tenui, breviore. Elytrorum margo lateralis basin versus pauUo incrassatus et verti-
caliter arcuatus. 5 . Elytrorum margo lateralis basin versus valde abrupte arcuatus et crassissimus.

Long. 6| millim, J 9 •

Uab. Mexico, Juquila (Salle).
Five examples.

10. Strigoderma castor. (Tab. XIV. fig. 13, $ .)

Popillia castor, Newman, Trans. Ent. Soc. Lond. iii. p. 49 \
Fopillia pollux, Newman, loc. cit. p. 50^.

Hah. Mexico ^ ^, Tuxtla, Playa Vicente, Panistlahuaca (SallS), Cordova, Tapachula
in Chiapas {Edge) ; Nicakagua, Chontales {Belt).

The type specimens of Newman's two species differ in sex, S. castor being a female
and S. pollux a male, the latter consequently with a narrower thorax ; they differ also
considerably in the thoracic punctuation — in 8. castor it is coarse and subconfluent
with numerous irregular depressions on each side of the disc, besides the broad groove
along great part of the inner side of the yellow submarginal wheal. The thoracic
punctuation is, however, very variable in this species in both sexes : in the numerous
series before me there are all gradations, and extremes go beyond the states of Newman's
species ; but the finest punctuation does not reach the nearly smooth thoracic surface
of Burmeister's S. orhicularis. Rare examples occur, however, which partly connect
these two apparently distinct species and even S. castor with S.f estiva.

Independently of the thoracic punctuation, S. castor differs from the nearest allied
species or subspecies in the shape of the clypeus, it being semioval or much narrowed
and curved from the base to the rounded apex, with the margin very slightly raised.
The yellow raised border is never absent from the thorax, the disc of which is generally
brassy-green, but sometimes rufo-testaceous, and the oblique depressions on each side are
seldom strongly marked. The thorax is dilated considerably before the middle, and
the sides behind the angle are deeply sinuated to the hind angles, which are acute in
the male and rectangular in the female. Viewed from above the thorax is elongate
and narrowed in front in the male, but transverse-quadrate in the female. The elytra
have the suture nearly always dusky, and sometimes also the humeral callus, apical

STEIGODEEMA. 257

border, and disc ; the depression on the anterior disc is slight and sometimes scarcely
perceptible. The lateral margin is simple in both sexes.

In size S. castor \a,vies from 6J-8 millim.

A female specimen from Panistlahuaca is figured.

The species is named S. angulata, Sturm, in the Salle collection. I received it from
Paris many years ago as S. marginicoUis, Chevr., MS.

11. Strigoderma festiva.

S. castori proxime affinis ; diifert solum thoraee transversim subquadrato vel subtrapezoidali margine alte
reflexo thoraceque grosse punctato, tumore flexuoso submarginali basali altius elevato foveaque obliqua
utrinqiie discoidali magis distincta. Color eadem sed variat toto cbalybeo-nigro, pedibus rufis, tborace
baud flavo-marginato.

Long. 6-7 millim, cJ $ .

Eab. Mexico, Juquila (Salle), Jalapa 1 [Edge).

The locality "Jalapa" with which Herr Hoge's specimens are labelled must be
received with some reserve. I have adopted the name given to the species by Deyrolle
in the Salle collection.

12. Strigoderma orbicularis. (Tab. XIV. fig. 14.)

strigoderma orbicularis, Burm. Handb. der Ent. iv. 2, p. 515 \

Eab. Mexico \ Cordova (Salle, Edge), Playa Vicente (Salle).

Closely resembling S. castor in form and colours and differing only in the shorter and
more semicircular clypeus, the evenly-convex smooth thorax, punctured conspicuously
only near the sides, and in the sulci that limit the yellow submarginal wheal, the latter
not raised in the middle of the fore and hind margins. The pygidium differs also in
being less densely clothed with cinereous pile and contrasting with the rest of the
uncovered portion of the abdomen by its brassy-black colour. The anterior disc of the
elytra is much more strongly depressed.

13. Strigoderma nigripennis. (Tab. XIV. fig. 15.)

S. orUculari ditfert solum colore Tiridi-seneo splendente, elytris nigris, pedibus rufis, capite et tborace

corporeque subtus interdum rufis seneo-tinctis, tborace nunquam fiavo-marginato.
Long. 6|-7 millim. c? $ •

Eab. Mexico, Tepansacualco (Salle), Cordova (Edge) ; Guatemala, Panzos in Vera
Paz (Champion).

The description of S. orbicularis applies to this on every point except colour. The
large number of examples of both, and the absence of all trace of connecting varieties,
lead me to treat it as a distinct form.

A specimen from Panzos is figured. '

BIOL, cente.-amer., Coleopt., Vol. II. Pt. 2, August 1888. 2 LL

258 LAHELLICOENIA.

14. Strigoderma mtelina. (Tab. XIV. fig. 16.)

Ovata, antice angustata, parum convexa, supra glabra, subtus panim dense pilosa, capite thoraceque viridi-sneis
vel senescenti-prasinis, hoc vitta lateral! flava, elytris fulvo-testaceis, $ concoloribus, c? plaga quadrata
circumscutellari, callo humerali vittaque irregular! marginal! nigris ; variat: — tborace margine vittaque
mediano ruf o-testaceis, vel toto corpore fulvo-testaceo tborace seneo-tincto ; capite densissime punctato ;
clypeo transversim quadrate, angulis valde rotundatis margineque antico paullo reflexo ; tborace elongate
a bas! ad apicem angustato, longe ante medium tantum leviter dilatato, angulis anticis acutis, posticis
rectis, margine basal! medio interrupto, supra (fovea rotunda lateral! excepta) sequaliter convexo, punctis
sat grossis et profundis (hie illic transversis) undique impresso ; elytris profunde punctato-striatis,
interstitiis sequaliter convexis. Pygidium aspere strigulosum, sparsim pilosum. Mesosternum breviter
porrectum, conicum, crassum.

(S 2 • Elytra margine versus basin paullo incrassato, baud dilatato.

Long. 6-9 millim. c? $ .

Hab NiCAEAGUA, Chontales (Belt) ; Costa Rica ( Van Patten) ; Panama, Bugaba,
Volcan de Chiriqui (Champion).

A large number of examples. The black elytral markings of the male are strongly
developed only in Costa Rican specimens — in some the apical half is black, as well as
the scutellum and lateral patches ; none of the males from Panama have more than
the suture, continued along the sides of the scutellum, and a lateral vitta, dusky.

The species is allied to S. colomMca, Burm. The elytral strige are more deeply
impressed than in S. colomhica, but less so than in S. castor and its allies ; and there is a
further peculiarity in the occurrence of a rudimentary fourth stria between the suture
and the humeral callus, which is distinct for some distance from the base between the
fourth and fifth strise and in some females extends nearly to the apex.

A Costa Rican specimen is shown on our Plate.

III. Striis elytrorum septem inter suturam et Galium humeralem.

15. Strigoderma teapensis. (Tab. XIV. fig. 17.)

Ovata, testaceo-rufa, subtus viridi-genea, fronte tboraceque viridi-seneis vel rufis geneo-tinctis, hoc vitta lateral!
flava intus fusco-marginata, elytris flavo-testaceis vitta lateral! interdum nigra ; capite creberrime
(vertice sparsius) confluenter punctate, clypeo brevi lato, margine mediocriter reflexo ; tborace ante
medium rotundato-dilatato, angulis posticis valde obtusis, lateribus nuUo mode sinuatis, dorso sequaliter
convexo, fortiter (versus latera subconfluenter) punctato, linea dorsal! Isevi, bas! integriter marginato ;
scutello fere Isevi ; elytris profunde sequaliter punctato-striatis, interstitiis parum convexis humerali
latiore et confuse punctato, margine in $ recto simplice. Pygidium aspere arcuato-strigulosum, nitidum,
parce hirsutum. Mesosternum subverticale, ap!ce paullo tuberculiformi. Tibise postice breves, robustse.

Long. 7|-8 millim.

Hob. Mexico, Teapa [Edge).

Three examples only of this very distinct species.

16. Strigoderma tomentosa, (Tab. XIV. fig. 18.)

Oblonga, supra subtiliter granulato-alutacea, fere opaca, fronte et tborace dense erecte pilosis ; fulvo-testacea,
SBneo-nitens, fronte et macula triangular! apud thoracis marginem anticum obscure viridi-seneis, elytris
interdum vel corpore toto seneo-scbistaceisj capite toto confertissime confluenter punctato, clypeo

STEIQODEEMA. 259

transverse subquadrato ; thorace pauUo ante medinm dilatato, antice recte angustato, postice lateribus
enbparallelis, angulis posticis valde obtusis, margine basali subtili integro ; elytris oblongis snlcatis,
interstitiis angxistis, potius nndecim carinatis, carinis politis, snlcis opacis, margine lateral! tenui, acuto,
sub callo hnmerali (6 2) tumidulo. Pygidium pilifero-punetulatum, politum. Mesostemum angustum,
valde declive, subcarinatum. Tibiae anticse gracUes bidentatae, posticae elongatse baud suratse. d" . Tarsi
antici ungue majore profunde fisso, dente superiore hand breviore, inferiore mediocriter dilatato.
Long. 7-10 millim. c? $ .

Eab. Mexico, Juquila {Salle).

Eight examples. A very distinct species, the somewhat tumid ascendent mesosternal
epimera of which alone justify its being included in Strigoderma. The striae, except
on the sides where they are sunk in two broad furrows, are regular, and the humeral
callus is feebly developed, as in S. sulcipennis.

17. Strigoderma lampra. (Tab. XIV. figg. 19, 20.)

Angusta, politissima, viridi-senea, cupreo-aurea vel senescenti-rufa, elytris cbalybeo-nigris vel senescenti-
testaceis nigro-viridi marginatis ; capite punetulato-scabroso, vertice Isevi, clypeo brevi ei lato subquadrato,
margine mediocriter reflexo ; tborace angusto ante medium mediocriter dilatato, angulis anticis productis,
acutis, posticis valde rotundatis, basi sulculo marginal! profundo integro, supra Isevissimo utrinque foveia
duabus rotundis profundis laevibus ; elytris striis punctatis, sutural! excepta parum impressis, inter
callum humeralem et marginem lateralem tantum duabus. Pygidium convexum, Iseve. Mesosternum
subverticale, apice tumidum paullulum porrectum. Tibiae posticae leviter suratae. c? • Tarsi antici ungue
majore elongato, parum incrassato, dente superiore tenui, breviore.

Long. 7-8 millim. c? $ .

Hob. Mexico, Tapachula in Chiapas (Edge).
About a score examples.

IV. Striis elytrorum octo inter suturam et callum humeralem.

18. Strigoderma sulcipennis.

strigoderma sulcipennis, Burm. Handb. der Ent. iv. 1, p. 316 \

Hah. Mexico ^, Ventanas (Forrer), Cordova, Puebla, Guanajuato (Salle), Vera Cruz,
Oaxaca {Salle, Edge), Jalapa, Durango city, Guadalajara, Atlisco, Iguala, Misantla,
Mexico city, Cuernavaca, Matamoros Izucar, Tapachula in Chiapas (Edge), Mochitlan
in Guerrero {Baron) ; Guatemala {SalU), near the city, Duenas, Chacoj, Panzos, San
Geronimo, El Jicaro {Champion) ; Nicaragua, Chontales {Belt, Janson).

Varies greatly in size (from 7-15 millim.) and in colour, the elytra being sometimes
blackish and sometimes tawny-brown, and the thorax black or coppery-black, and uni-
colorous or the sides broadly bright red or yellow or rich golden, in rare examples (two
from Guatemala) the whole surface gilded yellow. The punctuation and hairiness of the
thorax also varies. None of these colour-variations appear to be local ; most of them
occur together in all localities whence we have received the species in numbers. A
widely distributed and abundant insect in Mexico and Guatemala, but becoming rarer
southwards.

2LL2

260 LAMELLICOENIA.

V. Elytra acute Gostulata.

19. Strigoderma costulipennis. (Tab. XIV. fig. 21.)

Oblonga, subovata, supra deplanata, glabra, subopaca, aenescenti-nigra, elytris fulvo-testaceis plerumque sutura
et lateribus nigro-vittatis ; pedibus nigro-seneis vel rufis ; capite creberrime confluenter punctato, clypeo
parvo antice paullo angustato, margine leviter reflexo antice subsinuato ; thorace ante medium rotundato-
dilatato, postiee gradatim angustato, basi valde flexuoso, subtiliter marginato, supra dense subtilissime
punctulato ; scutello dense punctulato, margine postico Iffivi ; elytris interstitiis alternis (et suturali)
anguste elevatis, nitidis, spatiis depressis opacis, seriepunctulatis, 1° et 2° versus basin breviter costulatis,
costulis duabus lateralibus ante apicem conjunctis exteriore crassiore et fiexuosa. Pygidium nitidum,
discrete punctulatum. Mesosternum latissimum, convexum, declive, apice nullo modo prominens.

Long. 6-7 millim.

Eah. Mexico, Etla {Salle), Chilpancingo in Guerrero, Juquila (Edge).

VI. Elytra laevia.

20. Strigoderma auriventris. (Tab. XIV. fig. 22.)

Elongata, oblonga, fere tota glabra, polita, eapite, thorace et scutello cseruleis, elytris nigris, subtus viridi-aurea
splendidissima, pedibus cyaneis, femoribus aureis vel rufo-aureis ; capite confluenter punctulato, vertice
leevi, clypeo brevi trapezoidali, angulis sat distinctis, margine reflexo antice medio minus reflexo subsinuato ;
thorace paullo ante medium dilatato, postiee vix ampliato, angulis posticis subrectis, sulculo marginali
basi medio late interrupto, supra Isevi polito, vix perspicue sparsim punctulato utrinque foveis tribus
laevibus partim confluentibus ; elytris striis omnibus (marginali recta mox a callo humerali incipienti
excepta) obsoletis, politissimis. Pygidium viridi-aureum, nitidissimum, punctulatum, Mesosternum
latissimum, apice tumidum nee porrectum. Tibiae postiee elongatae, basi angustatae, suratae.

Long. 14 millim. $ .

Hob. Nicaragua, Chontales {Janson).

Two examples, females. This beautiful species difi"ers but little in details of structure
from Strigoderma, although the peculiar sculpture, or lack of sculpture, and the
Butela-lWe coloration seem to indicate a different generic type. The membranous
border of the elytra is well-developed, and the antennae are 9-jointed, though the fifth
joint is much longer than any of the rest, and the mesosternal epimera are tumid at
the sides and strongly ascendent. The most important differences are in the labrum,
the visible basal part of which is longer than in the Anomalw generally, and has no
trace of median depression, but is straight and sharp-edged, and dips vertically in front
with its lower (or anterior) edge not visible ; and in the mentum, which is in the same
plane as the ligula and longitudinally concave.

CALLIRHINUS.

CallirUnus, Blanchard, Cat. Coll. Ent. i. p. 176 (1844).

^wsopZm (partim), Burmeister, Handb. der Ent. iv. 2, p. 494 (1855).

This distinct genus consists only of one very variable species, apparently confined to
Mexico.

CALLIEHINUS.— DILOPHOCHILA. 261

1. CaUirhinus metallescens. (Tab. xiv. figg. 23, 24.)

Callirhinus metallescens, Blancli. Cat. Coll. Ent. i. p. 177 \

Anisoplia (Callirhinus) metallescens, Burm. Handb. der Ent. iv. 2, p. 494*.

Var. 1. Elytris basi flavo- vel rufo-testaceis (0. virescens, Burm. 1, c. p. 494).

Var. 2. Elytris toto flavo-testaceis.

Far. 3. Thorace metallico, vitta lateral! flavo-testacea. '

Var. 4, Thorace lateribus et ramo discoidali obliquo flavo-testaceis.

Var. 5. Supra toto rufo-testaceus, thorace seneo-tiucto.

Hah. Mexico ^ ^ 3 (Salle, ex coll. Sturm), Morelia in Michoacan, Tonila in Colima
(Koge).

The numerous examples captured by Herr Hoge vary from 9-10 millim. in length,
the size given by Blanchard. Two of Sturm's measure 12 millim. The series
examined exhibit nearly all gradations between the colour-varieties above described.

DILOPHOCHILA.

Corpus elongatum. Caput magnum, pracipue post oculos elongatum, latum ; oculi parvi. Clypeus antice
medio incisus, margine reflexo. Labium bilobatum, porrectum, lobis ciliatis. Mentum medio dense
pilosum. Antennae 9-articulatEe, articulis 3° et 4" elongatis cylindricis. Tarsi antici ( d $ ) ungue exteriore
elongate subgracile, valde insequaliter fisso, dente superiore brevi tenui dorsali ; ungues intermedii simplices.

I' Elytra margine postico membranaceo. Tibiae anticse bidentatae.

The species constituting this genus much resembles, except in its narrow oblong
form, the genus Bolax, from which the porrect, deeply divided labrum amply
distinguishes it. The clypeus is large and subquadrate, with much rounded anterior
angles, and separated from the forehead by a straight suture which is somewhat
inconspicuous owing to the dense sculpture.

1. DilophocMla bolacoides. (Tab. XIV. fig. 25.)

Testaceo-rufa, fronte cum vertice thoraceque viridi- vel cupreo-seneis pilis longis obsitis, hoc margine toto
lineaque dorsali rufo-testaceis, elytris fulvo-testaceis pallide lineatis ; pectore fusco-jeneo ; capite toto
creberrimeconfluenterpunctato ; thorace pauUoante medium angulato-dilatato, postice sinuato-angustato,
angulis posticis subrectis, margine acuto basali integro, supra dense inaequaliter hie illic confluenter
punctato ; elytris punctato-striatis, striis partim confusis interstitiisque transversim rugulosis, 2 vel 3
discoidalibus plus minusve costiformibus. c? . Ungues valde elongati. $ . Elytra margine laterali
medio incrassato et verticaliter longe arcuato.

Long. 8-11 mUnm. S $ .

Eab. Mexico, Parada {Salle), Las Vigas {Edge).
Six examples.

SuMsim. BUTELIJ^jE.

This subfamily corresponds to the " Sous-Tribu Rutelides vraies " of Lacordaire, with
the exception of the genera Macropoides and Heterosternus, and the greater part of his
Groupe "Areodides." It excludes, therefore, those genera in which the head is
furnished with a frontal suture. The front edge of the labrum is deflexed in the
middle an^ in most cases closely folded under.

262 LAMELLICOENIA.

Group ANTICHIRINA.
PLATYRUTELA.

Corpus latissime ovatum, convexum. Clypeus brevis, latus, quadrangularis, Bulcato-marginatas, margine antiee
si cut in gen. Telauge retrorsum declivis. Antennae lO-articulatge. Labnim medio basi valde concaviter
depressum, apice deflexum ; mentum convexum, ligula leviter depressa, margine late sinuato. Mandibulae
extus rotundatse, inermes, infra apicem intus dente valido instructae. Thorax lobo lato basali immarginato
apiceque leviter sinuato, basi utrinque usque ad angulum leviter sinuato ibique subtiliter marginato.
ScuteUum mediocre, scutiforme. Elytra grosse sculpturata, tenuiter marginata. Pedes sat graciles.
Tibiae antieae acute bidentatae ; ungues graciles pauUo inaequales, omnes simplices ( $ ?). Mesosternum
valde productum, subrectum.

The insect on which this genus is founded has the appearance of a broad Anomala
or Euchlora, and the labrum is that of an Anomala ; but the total absence of mem-
branous margin to the elytra, the frontal suture, and the 10-jointed antennae, remove it
from the subfamily to which Anomala belongs. Its place is evidently near Telaugis,
though the form of body and sculpture of the elytra give it an appearance totally
unlike that genus.

The base of the thorax has a similar widely-interrupted margin, and the anterior
vertical face of the clypeus slopes backward and forms a fold (highest in the middle) in
front of the head. But the fold is not so horizontal as in Telaugis, and is separated
from the surface proper of the clypeus by a deep and broad groove which surrounds
the three sides of the clypeus.

1. Platyrutela cribrata. (Tab. XV. fig. 1.)

Obscure olivaceo-viridis, elytris fuscescentibus, subtus cum femoribus viridi-aeneis, ventris segmentis postice
cupreo-auratis, tibiis et tar&is piceis vel rufis, pectore et ventre utrinque longe griseo-pilosis ; capite et
thorace dense punctulatis, punctis majoribus et minoribus intermixtis, hoc lateribus arcuatis, angulis
posticis rotundatis ; seutello laevi ; elytris grosse et profunde striato-punctsttis, punctis dorsalibus in seriebus
undecim ordinatis, sed 2% 7", 8^ et 9* plus minusve confusis. Pygidium granuloso-rugulosum, viridi-
aeneum, nitidum.

Long. 22 millim. $ ?

Hob. Costa Eica (Bogers).

Two examples only, judging from the simple claws most probably females.

LAGOCHILE.

LagocMle, Hoffmansegg, in Wiedem. Zool. Mag. i. 1, p. 14 (1817) ; Lacordaire, Gen. Col. iii.

p. 343 ; Blanchard, Cat. Coll. Ent. i. p. 204.
Chasmodia, MacLeay, Horse Ent. i. p. 155 (1819) ; Burmeisterj Handb. der Ent. iv. 1, p. 377.
Ometis, Latreille_, in Cuvier's Regne Anim. iv. p. 554 (1829) ; Lacordaire, Gen. Col. iii. p. 344.

The sole character on which the genus Ometis is founded lies in the ascendent meso-
thoracic epimera. This is nearly as well marked in the typical species of LagocMle
(L. trigona) as in the type of Ometis ; the name, therefore, if the genus is to be considered
valid, becomes a synonym of LagocMle, and the majority of the species hitherto

LAGOCHILE. 263

ranged under the latter would in that case require a new generic name. The ascendent
mesothoracic epimera, however, are evidently not of generic significance, as they exist in
many Antichirce, and the character is not corroborated by any other peculiar feature.

LagocMle is peculiar to Tropical America. Up to the present time eleven species
have been described.

1. Lagochile circumdata. (Tab. XV. fig. 2.)

Quoad colores X. trigones (Pabr.) similis, sed difEert corpore longiore oblongo elytrisque deplanatis. Supra nigra,
polita, th.orace (antice medio excepto), scutello elytrisque basi rufo-fulvo marginatis ; subtus corpore toto,
partibus oris pedibusque rufo-fulvis, partim interdum leviter infuscatis ; capite sparse et subtilissime
punctulato, clypei lobis acutis et late foveatis ; tborace brevi et lato, laevi, longe post medium dilatato,
delude antice valde angustato, postice cum angulis rotundato, sulculo marginal! apud dilatationem abbre-
viate, basi juxta scutellum fere recto et extus utrinque sat profunde sinuato-depresso ; elytris laevibus,
pectore fulvo-hirto. Pygidium medio planatum, fere laeve. Processus sternalis antice paullulum deflexus,
sed apice acuto parum curvato. Mesosterni epimera baud ascendentia. S . Tarsi 2 antici ungue majore
fisso, 4 posteriores simplices. $ . Ungues omnes simplices.

Long. 18-21 millim, d" $ .

Eab. Panama, Chiriqui (Trotsch), Bugaba, Volcan de Chiriqui {Champion),

Ten examples, all conformable to the above description.

The reddish-tawny basal margin of the elytra always extends beyond the shoulder,
and a little way down the lateral edge of the elytra ; the latter are nearly destitute of
sculpture throughout.

2. Lagochile collaris.

Lagochile collaris, Blanch. Cat. Coll. Ent. i. p-. 204 \

Hab. Mexico i, Cordova, Santecomapan (SalU), Misantla {Edge) ; Nicaragua, Chon-
tales {Belt^ Janson) ; Costa Rica, Cache {Rogers).

In form and sculpture agrees exactly with L. circumdata, from which it differs con-
stantly in colour and markings, the elytra and underside being wholly tawny-red, and
the head and thorax black, with the entire margin of the latter (sometimes interrupted
near the head), a dorsal line extending from the labrum to the middle of the thorax,
and the scutellum (or its borders only) tawny-red. The mesosternal process is formed
as described under L. circumdata, but the elytra are perceptibly more convex.

3. Lagochile chiriquina. (Tab. XV. fig. 3.)

L. collari proximo affinis, paullo minor, et differt labro corporeque subtus nigro-fuscis, capite et thorace
absque linea fulva dorsali elytrisque versus bumeros vage infuscatis ; pectore fulvo-piloso ; caeteris sicut
in L. collari et L. circumdata.

Long. 21 millim. d" $ .

Eab. Panama {coll. Bates), Chiriqui {Trofsch), Volcan de Chiriqui 4000 to 6000 feet
{Champion).

Seven examples.

264 LAMELLICOENIA.

4. Lagochile brunnipes.

Cetonia brunnipes, Olivier, Ent. i. no. 6, p. 77, t. 6. fig. 50.
Chasmodia brunnipes, Burm. Handb. der Ent. iv. 1, p. 342 \
Chasmodia marginicollis , Castelnau, Hist. Nat. Ins. ii. p. 118'.
Ometis brunnipes, Lacordaire, Gen. Col. iii. p. 344, nota.

Hob. NicAEAGUA, Chontales {JBelt).—^omB. Ameeica, Surinam, Cayenne i ^, Amazons

(coll. Bates).

Burmeister gives a description of this species, vi^hich is very good, except as to the
emphasized convexity. In the numerous examples I have examined the elytra, though
varying considerably, show at most but little convexity of surface. Among the pecu-
liarities of the species is the continuity of the marginal groove of the thorax, vrhich
extends at least to the hind angle, and sometimes passes it and runs for a short distance
along the basal margin.

CALOMACKASPIS.

Macraspis, § I, Burmeister, Handb. der Ent. iv. I, p. 345 (1844).
Antichira, Div. 1, Blancbard, Cat. Coll. Ent. i. p. 204.

The first division of Antichira seems to me to offer sufficiently well-marked and
numerous structural characters to merit generic distinction. It differs from Antichira
proper in the following points : — mandibles with the exterior edge rounded, unarmed ;
clypeus small, and, in the species where it is not concealed by the close sculpture,
separated from the forehead by a fine, though broadly interrupted, suture ; labrum
porrect, horizontal ; thorax with a large acute-angular basal lobe (the angles sharply
indenting the base of the elytra), and the basal margin on each side very deeply
sinuated to the acute and produced hind angle ; and tarsal claws in both sexes simple.

Four species are known, from Tropical America, perfectly concordant in the above
characters *.

1. Calomacraspis splendens. (Tab. XV. figg. 4 ; 5, var.)

Macraspis splendens, Burm. Handb. der Ent. iv. 1, p. 345 \

Hob. Mexico \ Cordova, Orizaba, Parada, Vera Cruz, Chiapas {Salle), Jalapa, Mata-
moros Izucar (Roge), Alamos (Buchan-Hephurn).

* One of them is as yet un described : —

Calomacraspis nigripennis.

C. haroldi (Candeze) afBnis. Lsete pomaceo-viridis, subtus metallica, tarsis cupreo-auratis, elytris purpurascenti-
nigris ; clypeo brevissimo arcuato confertim punctato, margine cupreo, sutura frontali medio interrupta
fortiter impressa, fronte crebre punctata ; thorace disperse, postice subtiliiis et sparsius, punctato, lobo
basali apice valde arcuato ; scutello latissime triangulari, Isevi ; elytris striato-punctatis, interstitiis
alternis latissimis punctulatis ; pygidio punctulato, subruguloso ; processu mesosterni pauUo descendenti
et curvato, verticaliter crasso, apice baud iucrassato.

Long. 18 millim. 5 .

Hob. IJppEE Amazons, Ega.

CALOMACEASPIS.— ANTICHIEA. 265

Apparently an abundant insect in the Province of Vera Cruz. The great majority
of the examples are, as Burmeister describes the species, bright metallic green, but,
individuals occur of a rich reddish-golden hue, with the elytra, as usual, less glittering
and golden-green, and others are intermediate between these and the typical state.

2. Calomacraspis concinna. (Tab. XV. fig. 6.)

Antichira concinna, Blanch. Cat. Coll. Ent. i. p. 204 \

Eab. Mexico ^ Cuernavaca (Salle), Chilpancingo and Iguala in Guerrero, Colima city
{Edge).

In addition to the colour-variations mentioned by Blanchard, the following may be
noticed : vermilion with a golden tinge, and head and thorax dark olive-green with
elytra vermilion and golden-red round the edges. A specimen from Cuernavaca is
figured.

3. Calomacraspis haroldi. (Tab. XV. fig. 7.)

Antichira haroldi, Candeze, Harold's Coleopt. Hefte, v. p. 43 \

Ilab. Guatemala, Sinanja (Champion) ; Nicaragua ^ Chontales (Belt, Janson) ;
Paijama, Bugaba, Volcan de Chiriqui (Champion).

We figure an example from Nicaragua.

ANTICHIRA.

Antichira, Eschscholtz, Mem. Acad. St. Petersb. vi. p. 475 (1818) ; Lacordaire^ Gen. Col. iii.

p. 345 ; Blanchard, Cat. Coll. Ent. i. p. 204.
Macraspis, MacLeay, Horae Entom. i. p. 156 (1819) ; Burmeister, Handb. der Ent. iv. 1, p. 343

(1844).

About 80 species of this beautiful and highly characteristic Tropical American genus
have been described. Its limits have been left in much uncertainty by authors who
have dealt with it ; the grouping of its forms and those belonging to allied genera
leading to different results according as the general facies, the size of the scutellum, or
the dentition of the tarsal claws are taken as the chief points of distinction ; and the
graduation from form to form greatly increases the difficulty. I propose here to limit
the genus to those species which have exteriorly bidentate mandibles, a more or less
large triangular scutellum, the thorax with truncated or sinuated medio-basal lobe, and
the mesosternal process well-developed. The mode of dentition of the tarsal claws is
treated as a specific or at most a minor group character.

1. Antichira lucida.

Cetonia lucida, Oliv. Ent. i. no. 6, p. 75, t. 7. f. 64 \
Macraspis lucida, Burm. Handb. der Ent. iv. 1, p. 349 ^.

Eab. Mexico, Cordova, Tuxtla, Santecomapan, Chiapas (Salle), Plan del Rio, Jalapa

BIOL. CENTK.-AMEB., Coleopt., Vol. II. Pt. 2, August 1888. 2 MM

266 LAMELLICOENIA.

(Edge) ; British Honduras, R. Hondo, R. Sarstoon {Blancaneaux) ; Guatemala, San
Juan in Vera Paz (Champion) ; Nicaragua, Chontales (Belt) ; Costa Rica ( Van Patten,
Rogers) ; Panama, Chiriqui (Bibbe, Trotsch), Volcan de Chiriqui, Tole (Champion). —
South America, Colombia 2, Venezuela ; West Indies, Guadaloupe ^

2. Antichira aterrima.

Antichira aterrima, Waterhouse^ Trans. Ent. Soc. Lond. 1881, p. 538 \

Eab. Mexico ^ (Salle, ex coll. Sturm), Ventanas in Durango (Hoge) ; Guatemala,
Zapote, San Isidro (Champion).

The majority of our examples are distinguished from the A. tetradactyla (Linn.), from
Jamaica, by their narrower form, the thorax also being narrowed slightly from the base
forward, and the scutellum decidedly narrower. But rare individuals occur which are
scarcely (distinguishable from Jamaica specimens in these respects. All, however, have
the pygidium finely strigose and punctulate throughout, whilst in A. tetradactyla this
segment is smooth on the basal half. Most Mexican examples have a fine submarginal
stria along the hind margin of the thorax on each side, of which there is no trace in
those from Guatemala. The whole insect is deep polished black. The closely allied
A. tristis (Casteln.) from Guadaloupe and St. Martin is distinguished by the numerous
smooth sulci of the elytra.

Sometimes found in numbers flying in the hot sun about the anona and other fruit
trees (Champion).

3. Antichira hirtiventris. (Tab. XV. fig. 10.)

A. lucidce quoad formam similis, sed differt mesosterni processu pauUo dependent! vix clavato, colore minus
leete viridi-aeneo corporeque subtus toto (ventro sparsius) griseo-piloso. Sat anguste oblonga, supra polita
fere toto laevis ; clypeo quam in A. lucicla breviore et latius rotundato (fere truncato), margine reflexo ;
thoraee a medio usque ad apicem recte angustato, basi multo minus quam in A. lucida flexuoso, juxta
scutellum utrinque baud anguste sinuate, sed lobo mediano arcuatim emarginato ; pygidio Isevissimo, mar-
ginibus punctulato-strigosis, pilosis.

Long. 22-25 millim. S $ •

Eab. Panama, Chiriqui (Trbtsch), Volcan de Chiriqui 2500 to 6000 feet (Champion).

A large number of examples were captured by Mr. Champion. The brighter green
individuals approach A. lucida in colour, but the majority are very dark, almost brassy-
black. In addition to the points of distinction mentioned above, it may be noted that
the conical apex of the pygidium in the male is much less elongated than in A. lucida.
In the hairy underside the species approaches the Venezuelan A. pubiventris (Blanch.) ;
but the latter is very densely clothed beneath and on the legs and pygidium with long
tawny hairs, and the upper surface is rather thickly punctulated.

4. Antichira rufonitida. (Tab. XV. fig. 9.)

Macraspis rufordtida, Burm. Handb. der Ent. iv. 1, p. 357 \

ANTICHIEA.— PTENOMELA. 267

Hah. Mexico ^, Orizaba, Cuernavaca, Tepansacualco, Juquila (Salle), Jalapa, Ventanas
in Durango {Edge) ; Guatemala, San Geronimo, Sabo in Vera Paz (Champion).

The reddish-brown translucent examples which have given the name to the species
are apparently not the common form, the prevailing colours being rich brassy-green,
blue-green, and dark blue. The under surface is more or less hairy, but the strongly
inclined and clavate mesosternal process distinguishes the species from A. hirtiventris.
It varies in size from 18-22 millim.

A specimen from San Geronimo is figured.

5. Antichira catomelsBna. (Tab. XV. fig. 8.)

Antichira catomelcena, Dohrn, Stett. ent. Zeit. 1885, p. 79 \
Hah. Panama, Chiriqui ^ {Trbtscli).

Glossy black, the elytra each with two vittae, and the lateral third of the thorax
(enclosing an elongate black spot) orange-yellow. The mesosternal process is horizontal,
upturned at the apex. The medio-basal lobe of the thorax is almost imperceptibly
produced and very wide and slightly arcuate-sinuate.

6. Antichira chlorophana.

Macraspis (§ Dorystethus) chlorophana, Burm. Handb. der Ent. iv. 1, p. 358 ^.

Hab. NiCAEAGUA, Chontales (Belt) ; Panama, Chiriqui (Trotsch). — South America,
Brazil i.

Three examples, agreeing very closely with others from Brazil.

7. Antichira iodiella. (Tab. XV. fig. il.)

A. caZcarctte. (Spinola) quoad formam et scutellum similis ; multo minor, modice convexa, caeruleo- vel violaceo-
nigra (capita thoraceque interdum obscure viridi-seneis), polita, supra (clypeo excepto) laevissima ; clypeo
mediocre cS $ semicirciilari ; thorace a basi usque ad apicem arcuatim (imprimis lente deinde citius)
angustato, angulis posticis obtusis, lobo medio basali vix perspicue sinuato fere recto, margine basali
utrinque late sinuato et depresso, sulco laterali pro fun do usque ultra angulum posticum continuato ; elytris
absque sculptura, pone humeros oblique retusis, margine laterali versus humeros incrassato deinde usque
ad apicem serrulate. Pygidium J $ usque ad apicem fere planum, medio Iseve, limbo strigoso. Femora
postica (S inermia ; mesosterni processus plus minusve inclinatus, apice recurvo acuto.

Long. 16-18 miUim. <S ? .

Hah. Panama (Trotsch), Volcan de Chiriqui 4000 to 6000 feet (Champion).

Five examples.

PTENOMELA.

Corpus ovatum, convexum, pomaeeo-viride raro submetallicum. Mandibulse extus rotundatas, inermes.
Clypeus (praecipue $ ) sat elongatus, semiovatus. Thorax margine postico medio breviter lobato reete trun-
cato Yel leviter sinuato, inter lobum et angulum posticum biflexuoso. Scutellum sat magnum, triangulare,
laleribus flexuosis. Tarsi sjcut in Antichira, ungue majore <S $ furcato. Mesosterni processus elongatus.

2 MM 2

268 LAMELLICOENIA.

This genus is founded to include a considerable number of species, homogeneous in
facies as well as in structural characters, which differ constantly from Antichira in the
form of the mandibles, from Thyridium in the size and shape of the scutellum (which
is one fourth the length of the elytra and triangular with flexuous sides), and from
Chlorota {sensu Lacordaire) in the well-developed mesosternal process. In the trun-
cated basal lobe of the thorax, also, it differs from the two latter genera, which are well
characterized by the same part being somewhat strongly rounded over the base of the
scutellum.

1. Ptenomela gratiosa. (Tab. XV. fig. 12.)

Antichira gratiosa, Sharp, Journ. Linn. Soc, Zool. xiii. p. 183 '.

Ilab. NiCAEAGUA, Chontales (Belt ^ Janson) ; Panama, Chiriqui (Trdtsck), Bugaba
{Champion).

Chiriqui specimens are wholly apple-green, and lack the reddish or coppery colour
of the elytral epipleurse which Sharp describes, and which all the Nicaraguan examples
possess. One of the latter is figured.

THYRIDIUM.

Thyridium, Burmeister, Handb. der Ent. iv. 1, p. 367 (1844), and iv. 2, p. 519 ; Waterhouse, Trans.
Ent. Soc. Lond. 1881, p. 545.

Fourteen species of this genus have been described, all restricted to Tropical America.
Its distinguishing characters are : — mandibles rounded (or very slightly sinuated) and
unarmed on their outer edge, thorax with rounded medio-basal lobe, and the scutellum
small and heart-shaped, or with curvilinear sides.

1. Thyridium semicinctum. (Tab. XV. fig. 13.)

Elongato-ovatum, pomaceo-viride, elytris basi et marginis exteriore dimidio aurantiaco-margiuatis, supra
toto subtiliter strigulosum et punctulatum, pygidio grossius et transversius striguloso ; clypeo S breviter
Bubquadrato, margine antico vix arcuato paullo reflexo et incrassato, $ antice medio gradatim subacute
producto oblique reflexo nee incrassato ; tborace post dimidium rotundato-dilatato, postice perparum antice
recte angustato, angulis posticis distinctis paullo obtusis, lobo basali perparum producto rotundato, mar-
gine utrinque usque ad angulum leviter sinuato et depresso ; elytris margine laterali dimidio basali leviter
incrassato, intus stria tenui delimitate, dimidio apicali laevi. Mesosterni processus crassus, subcylindrieus,
inclinatus. J . Tarsi antici ungue majore fisso, 4 posteriores unguibus simplicibus ; pygidio apice breviter
conico. 5 . Tarsi omnes ungue majore furcato ; pygidio piano, apice parum declivi.

Long. 38 millim. c5' 2 .

Hob. Panama, Chiriqui (Trotsch), Volcan de Chiriqui 4000 to 6000 feet (Champion).

CHLOROTA.

Chlorota (partim), Burmeister, Handb. der Ent. iv. 1, p. 359 (1844) ; Lacordaire, Gen. Col iii
p. 347.

Seventeen species of this genus have been described, peculiar, like the preceding

CHLOEOTA, 269

genera of the subfamily, to Tropical America. I follow Lacordaire in limiting it to
one only (II. b.) of Burmeister's four sections, in which the mesosternal process is very
short and the scutellum small and cordate, but eventually the genus will have to be
further subdivided.

1. Chlorota terminata. (Tab. XV. fig. 14.)

Pelidnota terminata, Serville, Encycl. Meth. x. p. 317 \
Chlorota terminata, Burm. Handb. der Ent. iv. 1, p. 364 *.

Sah. Nicaragua, Chontales (Belt) ; Panama, Chiriqui (Trotsch). — Guiana, Cayenne ^ ^ ;
Amazons.

An example from Chontales is shown on our Plate.

2. Chlorota cincticollis. (Tab. XV. fig. 16, d .)

S . Chlorota cincticollis, Blanch. Cat. Coll. Eat. i. p. 208 \
? . Chlorota limbaticollis, Blanch, loc. cit.*

Rab. Mexico ^ 2, Cordova (Salle) ; Beitish Honduras, R. Sarstoon {Blancaneaux),
Bonacca Island, Bay of Honduras (Gaumer) ; Nicaragua (Salle), Chontales (Belt,
Janson).

In the male the thorax is broadly margined with yellow, and the elytra are quite
smooth ; in the female the sides of the thorax only (sometimes narrowly) are yellow,
and the elytra are punctate-striate, with the sides and apex thickly punctured. These
difierences are found in individuals from all the above localities.

We figure a specimen from Nicaragua.

3. Chlorota flavicollis, (Tab. XV. fig. 15,)

Olongo-ovata, subtus cum pedibus et pygidio fusco-cuprea, capite splendide cupreo-aurato, thorace flavo aureo-
nitenti maculisque vagis fuscis, scutello viridi-aurato, elytris fulvo-castaneis Isevibus ; clypeo semi-ovato,
subtiliter striguloso, margine reflexo, vertice laevi ; thorace subtilissime sparsim. punctulato, post medium
rotundato-dilatato, postice perparum angustato, margine basali utrinque prope scutellum leviter sinuut.o,
iobo mediano levissime rotundato. Pygidium sat acute et dense confluenter strigosum, apice lateraliter
compressum. Mesosterni processus brevi acuminatus ; pectore rufo-hirto. J . Tarsi antici ungue majore
crasso fisso, 4 posteriores unguibus simplicibus.

Long. 23 millim. c? $ •

Eab. Panama, Bugaba (Champion).

Three examples, all males.

The mandibles are unarmed on the outer edge, except for the dentiform recurved
outer angle, in which they differ from those of the strongly dentated C. hcemorrhoidaUs,
the type of the genus (sensu Lacordaire). The labrum is short and horizontal, with
a weU-defined bisinuated front edge ; in C. hcemorrhoidalis it is deeply and broadly
sinuated, nearlv bilobed.

270 LAMELLICOENIA.

4. Chlorota pallida.

Chlorota pallida, Candeze, Harold^s Col. Hefte, v. p. 15 \
Hah. Guatemala 1.

Differs somewhat in colour (" fulvo-testacea, scutello flavo, .... metathorace
obsciiro ") and widely in sculpture (" prothorace inaequaliter sat fortiter punctate ....
elytris seriatim punctulatis") from C. flavicolUs. The sculptured elytra may be a
sexual character, as in C. limhaticollis, but the sex is not mentioned in the diagnosis.
The species is not contained in our collections.

5. Chlorota (?) belti. (Tab. XV. fig. 17.)

Late et regulariter ovata, alte convexa, castanea, polita, capite thoraceque aeneo-relucentibus, subtus cum pedibus
pallidior rufescenti-fulva, tarsis nigris ; clypeo ( $ ) semiovato, granulato-ruguloso ; thorace sparsissime
punctulato, longe post medium subangulatim dilatato, angulis anticis acutis, lobo medio basali recte trun-
cato, extus margine fortiter sinuate ; scutello late triangulari, lateribus leviter arcuatis ; elytris striis
punctatis 10, interstitiis paullo convexis laevibus, 2° lato medio confuse punctato, margine laterali medio
callo lato elongato laevi ; pygidio piano transversim strigoso, punctulato rufo-piloso ; corpore subtus rufo-
piloso, medio laevi. Tarsi antici ungue majore basi spina brevi armato, 4 posteriores unguibus furcatis.
Femora postica latissima. Mesosterni processus fere horizontalis planus, apice acute curvato.

Long. 28, lat. 17 miliim. $ .

Hah. NicAEAGUA, Chontales (Belt). One example only.

Belongs to Burmeister's Section II. a of Chlorota, and allied to Chlorota associata,
Waterh. The mandibles and labrum differ but little from those of C. flavicolUs.
The species with its allies, judging from the scanty material before me, seem to belong to
^ different generic type from Chlorota.

Group RUTELINA,
RUTELISCA.

Facies gen. Butelce. Clypeus antice valde angnstatus, apice recurvatus, lateribus utrinque angulatis, fronte tuber-
culis transversis depressis duobus. Antenna? lO-articulatse. MandibuljB angust^e, acuminata, aacendentes.
Labrum parvum, triangulare, verticale. Mentum parvum, ovatum, grosse piloso-punctatum, parte ligulare
minima angustato-rotundata. Palpi labiales breves, articulo apicali crasso cuboidali. Maxillse parv®,
acute 4-dentatse. Thorax basi immarginatns. Scutellum breve et latum, triangulare. Mesosternum
baud productum. Pedes cum tarsis graciles. Tibis anticse tridentatse. Ungues parum insequales,
graciles ; majore ( J ) pedum anteriorum crasso fisso, 4 posteriorum furcate ; ( 5 ) omnium furcate.

An interesting form, intermediate between the true Rutelae and the Cyclocephali,
and having a marked affinity with the Indian and Malayan genus Parastasia. The
insect on which it is founded is no doubt that mentioned by Lacordaire in a note on
the genus Chalcentis (Genera Col. iii. p. 353).

1. Eutelisca flohri. (Tab. XV. figg. 18 j , 19 $ .)

Pblongo-ovata, convexa, nigra, subuitida, $ unicelor, S verticis macula thoracis vitta laterali (macula nigra
includenti) signaturisque discoidalibus, elytris macula rotunda utrinque basali margineque posteriore,

EUTELISCA.— EUTELA. . 271

femoribus et tibiis anterioribus intus, flavis. Thorax lateribus sat regulariter arcuatis et anguste mar-
ginatis, sparsim punctulato j elytris striato-punctatis vix impressis ; pectore nigro-fusco, villoso.
Long. 15-17 millim. c? $ .

Sab. Mexico, near the city X (Flohr), Duraznal (Salle).

I received the first example (a male) seen of this species from Mr. Julius Flohr, sent
from the city of Mexico.

RUTELA.

Rutela, Latreille, Hist. Nat. Crust, et Ins. x. p. 201 (1804) ; Burmeister, Handb. der Ent. iv. 1,
p. 381 ; Lacordairej Gen. Col. iii. p. 352.

Nine species of the genus Rutela, as restricted by Burmeister and Lacordaire, have
been described, all from Tropical America. It is remarkable that no fewer than five of
the number are restricted (or nearly so) to the islands of the West Indies.

1. Eutela striata.

Cetonia striata, Oliv. Ent. i. no. 6, p. 79, t. 11. fig. 102 \
Rutela striata, Burm. Handb. der Ent. iv. 1, p. 386 ^.

Hah. Mexico, Tehuantepec (Sumichrast, in coll. Salle). — West Indies, Guadaloupe ^ ^.

Apparently common in the island of Guadaloupe. In the Mexican collection of
Salle there is only one example, which is perfectly similar to the ordinary black form
from Guadaloupe, and must be considered a doubtful native of the mainland.

2. Eutela specularis. (Tab. XV. fig. 20.)

Elongato-ovata, supra Isevissima, sanguinea, vertice lateribus, tborace vittis dorsalibus duabus antice abbreviatis,
scutello elytrisque fasciis duabus subflexuosis (prima obliqua ante medium latera baud attingenti, secunda

* latiore apicali), nigris ; subtus nigra polita, pedibus nigris partim castaneo-rufis ; capita sparsim punctulato.
clypeo acute bidentato ; tborace angusto sat elongato, post medium subangulatim dilatato, angulis posticis
obtusis sed distinctis vel subrectis, margine basali medio late rotundato leviter producto utrinque versus
angulum sinuato ; elytris anguste marginatis (striola marginal! prope medium duplicata) ; pygidio Igevi,
basi tantum sparse striguloso, sanguineo apice nigro ; metasterno polito, inter coxas intermedias late
producto, apice obtuso. Pygidium, S , ante apicem valde rotundato-convexum, $ apice verticaliter declive
et concavo.

Variat : toto nigra.

Long. 15-17 millim. c? $ •

Hah. Mexico, Play a Vicente (Salle).

Three examples only of this very distinct species have been received.

3. Rutela sanguinolenta.

Rutela sanguinolenta, Waterhouse, Ent. Monthly Mag. xi. p. 53 (1874) \
Hah. Costa Rica (Van Patten) ; Panama (coll. Bates). — South America, Colombia i.

The single example from Costa Rica is of the typical colours of the species as described

272 . LAMELLICOENIA.

by Waterhouse, i. e. elytra bright red with a central black fascia. Some examples from
Colombia and Panama have the elytra entirely red, or black with a basal fascia only red.

4. Rutela viridiaurata.

Oblongo-ovata, viridi-aurata, resplendens ; capite fere Isevi, clypeo breviter et obtuse bidentato, reflexo ; thorace
laevi, medio sat late rotundato, sulco marginali lato transversim strigoso, angulis posticis subrectis, margine
basali medio late recto, versus angulum utrinque valde sinuato ibique basi elytrorum sublobato penetranti ;
elytris disco striato-punctulatis, lateribus late impunctatis interstitiisque lato subsuturali confuse punc-
tulato. Pygidium ( $ ?) valde convexum, sparse ramoso-strigulosum, margine apicali arcuatim sinuato.
Processus sternalis conicus, crassus.

Long. 14 mUlim. '

Hab. Costa Rica {coll. Bates).

CNEMIDA.

Cnemida, Kirby, Zool. Journ. iii. p. 146 (1827); Burmeister, Handb. der Ent. iv. 1, p. 378;
LacordairBj Gen. Col. iii. p. 351.

Peculiar to Tropical America. Two species only have been described, but several
others are known in collections.

1. Cnemida aterrima. (Tab. XV. fig. 21.)

O, retuscB affinis, differt colore ebenino-nigro politissimo, elytris interdum litura parva mediana transversa folva ;
thorace sequaliter convexo, absque foveis et strigis ; elytris laevibus, foveola ramosa profunda basali (fundo
lineatim punctata) altera pa|:va lateral! ; pygidio medio laevi lateribus et apiee strigoso, S apice magis,
$ minus, convexo.

Long. 12-13 millim. c7 2 •

Hob, Mexico {Salle, in coll. Sturm), Santecomapan {Salle), Misantla {Edge) ; Guate-
mala, Chacoj {Champion); Nicaeagua, Chon tales {Belt, Janson).

Many examples. I have adopted the MS. name which this species bears in the
Salle collection.

A Chontales specimen is figured.

2. Cnemida intermedia,

Bbenino-nigra, polita, elytris medio fascia angusta flexuosa fulva, thorace medio convexo laevi (subtiliter sparsim
punetulato) dorso anteriore utrinque fovea magna ramosa, altera parva versus angulum posticum, et toto
limbo laterali acute flexuoso-strigosis ; elytris laevibus, in foveolis et versus apicem lineolis impressis
punetatis. Pygidium c? ? insDqualjter convexum, lateribus multi-retusis, strigosum, medio tantum
laevissimum.

Long. 10-11 millim. S $ •

Hab. Nicaragua, Chontales (-BeZ^) ; Panama, Tole, David (C%«mpow).

Three examples.

In sculpture this species or subspecies more nearly resembles the South-Brazilian
C. lacerata (Germ.) than the C. retusa of Guiana and the Anaazons valley. It differs

CNEMIDA.— PELIDNOTA. 273

from both C. lacerata and C. retusa only in the black colour of body and limbs, and in
the more triangular emargination of the basal lobe of the thorax.

PELIDNOTA.

Pelidnota, MacLeay, Horse Ent. i. p. 157 (1817) j Burmeister^ Handb. der Ent. iv. 1^ p. 392;
Lacordaire, Gen. Col. iii. p. 355.

Sixty species of this fine genus have been described. It is, like the preceding genera,
American, but has a wider range, being spread over the temperate zone of North
America, and in the South extending to the latitude of Buenos Ayres.

1. Pelidnota belti. (Tab. XV. fig. 22.)

Pelidnota belti, Sharp, Journ. Linn. Soc, Zool. xiii. p. 133 \

Hab. NiCAEAGUA, Chontales (Belt ^, Janson) ; Panama, Chiriqui (Trdtsch), Volcan de
Chiriqui 4000 to 6000 feet {Cha7npion).

Many examples, including type specimens named by Sharp. It is the only species
in our fauna belonging to Burmeister's first section with bidentate clypeus.
A specimen from Chiriqui is shown on our Plate.

2. Pelidnota notata. (Tab. XV. fig. 23.)

Pelidnota notata, Blanch. Cat. Coll. Ent. i. p. 212 \

Eab. Mexico i, Tlacotalpam (Salle) ; Guatemala, Cerro Zunil, El Tumbador (Cham-
pion) ; Nicaragua, Chontales (Belt, Janson) ; Costa Eica (Rogers) ; Panama, Chiriqui
(Bibbe, Trofsch), Bugaba, Tole (Champion).

An elongate-oblong reddish-testaceous species, having three black spots on each elytron
in the same position as those of the common North- American P. 'punctata, but the spots
are much smaller and sometimes absent. The elytra are somewhat flattened and dull
silky-shining owing to the extremely fine punctate-granulate sculpture, and the sutural
apex is produced into a distinct spine. The upper surface (including the crown) is
unicolorous, except for the slight metallic tinge of the head, thoracic margins, and
scutellum. The under surface is dark brassy, punctate-shagreened, and clothed with
grey hairs, the legs being testaceous-red, rarely metallic.

We figure an example from Tlacotalpam.

3. Pelidnota prolixa. (Tab. XV. fig. 24.)

Pelidnota prolixa, Sharp^ Journ. Linn. Soc, Zool. xiii. p. 132 \ .

Eab. Nicaragua, Chontales (Belt ^).

Very closely allied to P. notata ; still more elongate and depressed, the elytra much
BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, August 1888. 2 NN

274 LAMELLICOENIA.

more finely but similarly granulated, and the hind angles of the thorax subrectangnlar
(rounded in P. notata), and the underside and pygidium rufous.

4. Pelidnota costaricensis. (Tab. XVI. fig. i, ? .)

p. punctatce afflnis ; supra testaeea, polita, viridi-seneo tincta, fronte et vertiee, scutello elytrorumque sutura
Isetius viridi-asneis, elytris utrinque punctis 3 nigris ; corpore subtus et pygidio saturatius viridi-seneis
politis ; pedibus anticis rufis, femoribus 4 posterioribus et tibiis extus dimidio viridi-seneis ; capite grosse,
clypeo confluenter punctatis ; thorace lateribus latins quam in P. punctata rotundatis, angulis posticis
obtusis vel rotundatis, sat grosse discrete punctato ; elytris disperse subtiliter punctatis (et interdum
striato-punetatis) nee subtilissime granulato-punctulatis, sutura apice brevissime acuto. Clypeus J
subsinuatim fortiter angustatus, apice baud late refiexo leviter sinuate, $ valde sinuatim angustatus,
apice subrostrato reflexo truncate. Pygidium S valde convexum, disperse punctatum, medio Igeve,
$ parum convexum, lateraliter compressum.

Long. 24-28 millim. S 2-

Hah. Costa Rica [Van Patten'), Cache {Rogers). Nine examples.

Var. P. guatemalensis. Differt tantum elytris immaculatis, crebriua punctulatis, pygidioque ( c? ) dense punc-
tulato-striguloso,

ffab. Guatemala {Salle), Capetillo {Champion) ; British Hondueas, R. Sarstoon
{Blancaneaux).

In colour of body and legs this variety much resembles P. virescens, especially the
Guatemalan form, the latter, however, is more elongate and more brilliantly relucent,
besides wanting the brassy-green bilobed spot on the vertex. The head, moreover, is
smaller in the present species, and the clypeus in the male very different, being
triangular, and not rounded.

5. Pelidnota virescens. (Tab. XVI. fig. 2, $ .)

Pelidnota virescens, Burm. Handb. der Ent. iv. \, p. 403 ^ ; Blanch. Cat. Coll. Ent. i. p. 212 \

Hah. Mexico ^ ^, Ventanas in Durango, Jalapa, Tacambaro {Hbge), Ciudad in Durango,
Presidio, San Bias {Forrer), Cuernavaca, El Camaron, Vera Cruz {Salle).

This species is distinguished by its testaceous-yellow colour (clypeus concolorous) and
its brilliant glassy silvery-green lustre. But it varies much in outline and convexity
and sculpture, the elytra especially, which in the typical state are punctulate-striate
with convex interstices, being sometimes smooth with very fine striae and flat inter-
stices. In the typical form the underside of the body and pygidium are brassy-green,
and the legs testaceous, more or less inclining to brassy-green on the femora and tibige.
In some localities varieties occur which, although not very constant, depart so much
from the type as to merit separate mention : —

Var. 1. Elytra striis minime impressis interstitiisque planissimis.

Hah. Mexico, Acapulco {Hoge), Vera Cruz {Salle).

Var. 2. P. aurescens. Supra aurescenti-relucens ; clypeus in c? antice plerumque augustato, apice reflexo
subsinuato. (Tab. XVI. fig. 5.)

PELIDNOTA. 275

Hah. Guatemala, El Tumbador, Cerro Zunil, Volcan de Atitlan, San Isidro, Las

Mercedes, Pantaleon {Champion).

I ■

Yar. 3, P. jalapensis. Minus elongata, elytris pauUo grossius punctato-striatis, sutura apice minime spinosa,
pygidioque semper apice late pallide testaceo ; clypeus in S antice angustato, apice reflexo subsinuato.
(Tab. XVI. fig. 4.)

Ilab. Mexico, Jalapa {Hbge).

A large number of examples, nearly all males ; the few females have the pygidium
vaguely pallid at the apex, and transitions occur between them and P. virescens,
type form.

Yar. 4. P. cliahopus. Supra toto saturate cupreo-viridis resplendens, elytris fulvo-castaneo-translucentibus ;
pedibus viridi-seneis, femoribus pauUo rufo-trauslucentibus. (Tab. XYI. fig. 3.)

Hab. Beitish Hondueas, Cayo [Blancaneaux) ; Guatemala, San Isidro, Las Mercedes
(Champion).

Two examples (male and female, the female duller in colour) from Cayo have
smoother elytra than others of the same colour from Guatemala, but not smoother than
individuals from Acapulco, and less smooth than one from Vera Cruz. Gradations
exist between them and the var. aurescens.

6. Pelidnota cupritarsis.

p. lucidce quam proxime affinis. Elongata, flavo-testacea vix aeneo-tincta, corpore subtus pedibusque viridi-
seneis his rufo-translucentibus, tarsis leetissime igneo-aureis.
Long. 26-27 millim. $ . -

Hah. Panama [coll. Bates). — Colombli, Sierra Nevada de Santa Marta.

Very closely allied to the common P. lucida of Venezuela, with which it has in
common the immarginate base of the thorax, a character which would remove it not
only from Pelidnota, but from the group to which Pelidnota belongs, if it were
necessary to adhere to a single feature, in violation of all other signs of true affinity.
It differs from P. lucida in the absence of seneous gloss, except on the sides of the head
and thorax, and in the rich coppery-red tarsi. The under surface of the body, legs, and
pygidium are rich metallic green, and, except in the middle of the body, strigulose-
punctulate. The clypeus is subtriangular ( $ ), with the sides sinuated and the apex
reflexed and truncate or obtuse. The thickened margin of the elytra extends to within
a short distance of the sutural apex, which latter is simple, rectangular, or obtuse.

The species answers in some respects to the imperfect description given by Latreille
of his P. polita, from Cuenca in Peru.

7. PeMnota ?

Hab. Panama, Chiriqui (Trbtsch).

*

A single, very imperfect, specimen of a distinct species.

2NN2

276 LAMELLICOENTA.

8. Pelidnota strigosa. (Tab. XVI. fig. 6.)

Felidnota strigosa, Castelnau, Hist. Nat. Ins. ii. p. 123 \

Hah. Mexico i, Cordova, Tuxtla, Vera Cruz {Salle), Jalapa, Misantla, Tapachula in
Chiapas {Edge) ; Guatemala (Salle), Zapote, San Isidro, Escuintla, El Eeposo (Cham-
pion) ; NiCAEAGUA, Chontales (Belt, Janson), San Lorenzo (Janson) ; Costa Rica ( Van
Patten, Rogers) ; Panama, Volcan de Chiriqui (Chamjpion).

Distinguished by its very elongate-ovate form ; the elytra gradually flattened behind,
with long and sharp sutural spine, and the thickened reflexed lateral margins
continued nearly to the apex. In Mexico and Guatemala the colour is almost always
testaceous-yellow, with strong brassy or golden reflections, but some Guatemalan
examples are rich dark coppery with brassy-green reflections. The legs are coppery
or reddish, with brassy femora. An example from Cordova is figured. In the southern
parts of our region, according to the few examples received, the species is represented
by a tolerably well-marked local variety : —

Yar. P. alutacea. Caput et thorax densius punctata hoc punctis minutia intermixtis, versus latera punctulato-

alutaceo, subopaco ; corpore subtus cum pedibus suturatius viridi-seneo, pedibus nigris vel piceis.
Long. 27-30 millim.

Hob. Costa Rica (Van Patten); Panama, near the city (J. J. Walker), Volcan de
Chiriqui (Champion), Chiriqui (Bibhe).

9. Pelidnota punctulata. (Tab. XVI. fig. 7.)

Elongato-oblonga vix ovata, capite thoraceque fusco-seneis, hoc lateribus clypeo et elytris fuscescenti-ochraeeis,
subtus obscure viridi-senea, punctulato- alutacea, pedibus obscure testaceo-rufis seneo-tinctis ; capite et
thorace subconfluenter punctulatis hoc medio vel pauUo- post medium latiore, sulculo marginali basi
indistincte impresso; elytris striato-punctulatis, interdum medio confuse punctatis, margine laterali
incrassato mox pone medium terminata, apice suturali spinoso. Mesosterni processus brevis, conicus.
Clypeus apice, J minus 5 magis et angustius, productus obtusus reflexus. Pygidium c? 2 lateraliter
infra compressum, S disco valde convexum.

Long. 26-33 milHm. c? $ .

Hah. Mexico, Vera Cruz, Cordova, Campeachy (Salle), Jalapa (Edge), Temax in
North Yucatan (Gaumer); British Honduras, R. Hondo, Cayo (Blancaneaux) ;
Guatemala, Zapote (Champion); Nicaragua, Chontales (Belt).

Varies greatly in the amount and strength of the punctuation of the elytra. We
figure an individual from Cordova.

Group PLUSIOTINA.

PLUSIOTIS.

Plusiotis, Burmeister, Handb. der Ent. iv. 1, p. 417 (1844) ; Lacordaire, Gen. Col. iii. p. 357 ;
Boucard, Proc. Zool. Soc. 1875, p. 117.

Twenty-two species of this superb genus have been described. It is highly charac-

PLUSIOTIS. 277

teristic of the Central-American region, including the southern borderlands of the
United States. I have seen two species only (one of which belongs to the burnished-
metallic group of the genus*) from South America. P. Iceta, Sturm (=P. psittacina),
the type specimen of which is in the Salle collection, is a Mexican species recorded
erroneously from Chili.

1. Plusiotis victorina. (Tab. XVI. fig. 13, <s .)

Pelidnota victorina, Hope, Proc. Ent. Soc. Loud. 3 Aug. 1840 (vol. iv. Proc. p. 8) \
Plusiotis victorina, Burm. Haudb. der Ent. iv. 1, p. 418 ^

Hab. Mexico i, Tepansacualco {Salle), Oaxaca {Hoge ; Fenochio, in coll. Bates),
Villa Alta in Oaxaca ^.

Burmeister places this remarkable species at the head of the genus.
An example from Tepansacualco is shown on our Plate.

2. Plusiotis boucardi.

Plusiotis Boucardi, Salle, Ann. Soc. Ent. Fr. 1878, Bull. p. xvii ^ ; Boucard, Proc. Zool. Soc. 1878,
p. 296, t. 16. fig. 3.

Hah. Costa Eica (Van Patten), mountains of Candelaria 5000 feet (Boucard^).

Most examples are smaller than P. victorina (27-32 millim.), to which it approaches
in the dark brick-red colour with coppery tinge of the underside, and in the sculpture
of the elytra. The whole upper surface is apple-green, with yellowish reflections.
The pygidium in the male is strongly convex near the apex, in the female convex in
the middle with retuse compression on the sides. The mesosternal process is subelon-
gate and acutely conical as in P. victorina.

3. Plusiotis aurora,

Plusiotis aurora, Boucard, Proc. Zool. Soc. 1875, p. 119, t. 23. fig. 7\
Hab. Panama, Veragua ^.

I know this species only from the description and figure given by Boucard ; the
following is a variety, or possibly the typical form of it : —
Var. Plusiotis chrysopedila. (Tab. XVI. fig. 12.) Elongato-oblonga, pomaceo-viridis rufescenti-relucens,

* Plusiotis argenteola.

p. resplendenti affinis, splendidissime argentea subaurata, sed quoad formam valde difFert, magis elongata
elytrisque ad trientem apicalem latioribus. Clypeus (c??) antice sinuato-angustatus, margine apicali
reflexo et sinuato ; capite et tborace distincte disperse punctulatis et crebre subtilissime vis impresse
punctulatis; elytris striato-punctulatis, iaterstitiis subtiliaa punctulatis, margine laterali tenui usque
prope apicem. coutinuato, versus basin verticaliter dilatato, intus stria punctata delimitate; subtua
splendide aurata, tibiis rosaceis, tarsis nigris. Mesosterni processus acute conicus, validus. Pygidiura
versus apicem valde convexum, punctulatum, glabrum.

Long. 32 millim. c? •

Hab. Colombia, inter Pasto et maris Pacifici littora.

278 LAMELLICOKNIA.

marginibus elytrorumque sutura flavescentibus, subtus submetallico-viridis plus mimisve rufo-micans
tarsis igneo-aureis ; capite et thorace conspicue sed discrete punctatis, interstitiis subtilissime et dense
vix impresse punctulatis, hoc medio angulatim dilatato crasse marginato sulco marginali profundo,
angulis anticis acutis, posticis rectis ; elytris subtiliter ptinetulato-striatis, interstitiis subtilissime dense
vix impresse punctulatis, stria marginali lata punctata; pygidio subtilissime striguloso. Mesosterni
processus brevius quam in P. victorina, conicus.
Long. 28-33 millim.

ffah. NiCAEAGUA, Chontales (Belt) ; Panama, Bugaba, Volcan de Chiriqui 4000 to
6000 feet (Champion).

Eighteen examples, offering no differences in colour. The usual secondary sexual
characters in clypeus, anterior claws, and pygidium seem to be very slight in this
species, though small differences in the outline of the clypeus show that we have both
sexes. In all examples the pygidium is convex near the apex, and more or less
culminate along the middle.

One of our examples bears a label in M. Boucard's handwriting " Plusiotis aurora,
var., Boucard." This species, therefore, is that which he describes (Proc. Zool. Soc.
1875, p. 119) as a doubtful green variety of his P. aurora. The specimen figured is
from the Volcan de Chiriqui.

4. Plusiotis marginata. (Tab. XVI. fig. li.)

Plusiotis marginatus, Waterhouse, Ent. Monthly Mag. viii. p. 5 \

Hah. Panama, Chiriqui i [Trbtsch), Volcan de Chiriqui 2500 to 6000 feet (Champio7i). •

The pygidium is strongly convex near the apex in both sexes. The males are distin-
guishable by the larger claw of the anterior tarsi being much longer and broader than
in the females.

5. Plusiotis resplendens.

Plusiotis resplendens, Boucard, Proc. Zool. Soc. 1875, p. 119, t. 23. fig. 5 \

Hob. Costa Pica ( Van Patten, Mogers), near San Jose (Boucard ^) ; Panama, Volcan
de Chiriqui 4000 to 6000 feet (Champion).

Twenty-five examples. In this pale golden, very highly polished, almost silvery
species the clypeus is a little narrowed near the apex in both sexes, and the apical
margin reflexed and often distinctly sinuated. It is remarkable for the form of the
mandibles, which show a tendency to reversion to the Pelidnota type, for their outer
edge is not broadly rounded, but more or less sinuated, and in some examples very
obtusely bidentate. The pygidium is clothed with long, stiff, tawny hairs on its posterior
half; it is slightly more convex in the male than in the female, but has not the convex
protuberance near the tip, which is so pronounced in P. aurora, var. chrysopedila, and
P. marginata. The larger anterior claw of the male is much longer and broader than
in the female. The size ranges from 22 to 27 millim.

PLUSIOTIS. 279

This and other species of Plusiotis (as well as Thyridium and various Antichirce) were
met with flying in the hot sun about the tops of trees on the margin of a lagoon in the
dense forest ; numerous living and dead specimens of these (as well as vast numbers of
Dynastidse and other Lamellicornia) were also found submerged in the water or cast up
on the banks (Champion).

6. Plusiotis optima. (Tab. xvi. fig. lO.)

Elongato-ovata, prope elytrorum basin valde convexa fere gibbosa, politissime aurescenti- vel igneo-cuprea, elytris
certo situ leviter Mvo-translucentibus, subtus cum antennis, epipleuris, pygidio et pedibus rufescenti-
luteis, tarsis cuprascentibus ; capite sat sparsim punctato, clypeo semiovato margine leviter reflexo ;
tborace brevi et lato, ante medium valde angulatim dilatato, lateribus antiee et postice sinuatis, angulis
anticis prolongatis acutis, posticis acutis, sulculo marginali lato et profundo, margine postico sulculo medio
late interrupto ; elytris Isevibus vix perspicue obsolete striatis, margine laterali usque ultra medium pauUo
incrassato-reflexo, callo apicali valido subconico ; pygidio sparse punctulato, convexo, margine apicali
supra anum alte elevato medio acute reflexo ; pedibus fere impunctatis ; mesosterui processu valde
elongato, spiniformi.

Long. 26 millim. S . '

Hab. Costa Eica ( Van Patten).

One example only, from its short, squarely emarginated, apical ventral segment
undoubtedly a female. The species difiers in many respects from all its congeners, and
from the nearly immarginate base of the thorax might be considered to approach
Thyridium or Ptenomela more nearly than any genus of the Pelidnota group, but the
marginal sulcus near the posterior edge of the thorax is scarcely impressed in other
species of Plusiotis. The rich red-golden hue of the upper surface and mirror-like
polish make it one of the most conspicuous species of a genus remarkable for metallic
splendour.

7. Plusiotis batesi.

Plusiotis batesi, Boucard, Proc. Zool. Soc. 1875, p. 119, t. 23. fig. 6^, and 1878, p. 293 ^
Hab. Costa Rica (Van Patten), Volcan de Irazu 1 2.

Twelve examples, both sexes. The clypeus in the male is obtusely rounded in front,
and in the female a little more elongate and produced, with the slightly reflexed apical
margin more or less sinuated. The mesosternal process is rather short, but acute, and
not conical or thick vertically. It is a large (32 millim.) and somewhat narrowly
oblong species, with relatively narrow thorax widened before the middle. The colour
in the fresher examples is more silvery than in P. resplendens, but less purely white
than in P. chrysargyrea.

8. Plusiotis chrysargyrea. (Tab. XVI. fig. 9.) '

Pelidnota chrysargyrea, Salle, Ann. Soc. Ent. Fr. 1874, p. 361 \

Plusiotis chrysargyrea, Boucard, Proc. Zool. Soc. 1875, p. 120 ^ and 1878, p. 294.

Hab. Costa Rica ^ ^ ( Yan Patten, in coll. Salle) ; Panama, Volcan de Chiriqui 4000
to 6000 feet (Champion).

280 ' LAMELLIOOENIA.

Var. Aurea, tibiis et tarsis eupreis, Boucard, Proc. Zool. Soc. 1878, p. 294 \
^«5. Costa EiCA, Candelaria Mountains 3.

Six examples; all of a silvery hue, like a ball of mercury, to which Salle aptly
compares it; the sides of the breast beneath and legs being of the usually smooth
subopaque pinkish-clayey hue characteristic of the undersides of all the allied species,
but with the centre of the sternum (including the hind trochanters) and abdomen
greenish-silvery polished and the tarsi rich violet. The variety described by Boucard
is not contained in our collections.

The specimen figured is from the Volcan de Chiriqui.

9. Plusiotis badeni.

Plusiotis badeni, Boucard, Proc. Zool. Soc. 1878, p. 294, t. 16. fig. 2\
ffab. Mexico, Orizaba (Salle).

A small, rather oblong species, with a roughly granulate-rugose pygidium, a burnished
silvery apical callus, and a long and slender sternal process. The elytra are somewhat
regularly punctate-sulcate, with the alternate interstices (four on each elytron j irregu-
larly punctured, as in P. auripes. The sides of the thorax are broadly rosy-red.

10. Plusiotis lacordairei.

Plusiotis lacordairei, Boucard, Proc. Zool. Soc. 1875, p. 122, t. 23. fig. 4\
Hab. Mexico, Juquila ^ and Las Peras in Oaxaca (Salle).

Very closely allied to P. badeni, but the silvery apical callus is larger and still more
brilliant and the sides of elytra and body have a silvery lustre ; the sternal process is
only about one half the length, though very acute ; and the pygidium is much less
roughly punctate-rugulose. The thorax is destitute of red lateral vitta. Three
examples, including both sexes.

11. Plusiotis sallsBi.

Plusiotis sallm, Boucard, Proc. Zool. Soc. 1875, p. 123, t. 23. fig. 3 \
Hah. Mexico, Orizaba ^ (Salle), Jalapa (H'oge).

Nearly allied to the two preceding, but larger and (in the female) broadly ovate, with
remarkably long tapering clypeus ; the pygidium thickly punctured, without rugse. The
sternal process is nearly as long as in P. badeni and the sides of the thorax are rosy-red
as in that species. The apical callus of the elytra is scarcely shining. Three examples,
all females.

12. Plusiotis auripes.

Chrysina auripes, Gray in Griffith's Anim. Kingd,, Ins. i. p. 517' (1832).

' • PLUSIOTIS. 281

Plusiotis auripes, Burm. Handb. der Ent. iv. 1, p. 419*; Boucard, Proc. Zool. Soc. 1875, p. 122'.
Pelidnota auripes, Hope, Proc. Ent. Soc. Lond. Aug. 3j 1840; Trans. Ent. Soc. Lond. iv. Proc.
p. 8?*.

Hah. Mexico 123 4.

The general form of this species is not described by Gray nor Burmeister, but they
note the convex, alternately punctured and smooth, interstices of the elytra, and golden-
green tarsi. Boucard, who states that he possesses Gray's type-specimen, describes its
form as " oblongo-ovata," and decides, after careful examination of authentic examples
of both species with the aid of Mr. C. O. Waterhouse, that it is specifically distinct
from the following, with which it was united by Burmeister.

13. Plusiotis psittacina.

Pelidnota psittacma, Sturm, Cat. edit. 4, p. 340, t. 3. f. Q,S^-
Plusiotis auripes (Gray), Burm. Handb. der Ent. iv. 1, p. 419.
Var. Pelidnota lata, Sturm, Cat. 1843, p. 341.
Plusiotis amalia, Burm. Handb. der Ent. iv. 1, p. 422.

Hah. Mexico ^ {Salle, ex coll. Sturm).

There are two examples of this species in the Salle collection, named by Sturm with
the synonym on the label in his handwriting "P. auripes, Gray." Sturm therefore
considered his species to be the same as the earlier described P. auripes. The insect is
33 millim. long, of elongate oblong shape, even in the female, and wholly clear apple-
green, slightly metallic on the underside, epipleurse, and legs, the tarsi more brilliant
metallic green. The elytra are irregularly punctured on the alternate interstices
(second, fourth, sixth, and eighth) and minutely punctulated throughout ; the head and
thorax are somewhat closely punctured, with the interstices minutely punctulated ; and
the pygidium punctulate-strigulose. The sternal process is very short, slightly projecting
and conical.

The type-specimen of P. Iceta (Sturm) is contained in the Salle collection; it is
evidently a small and somewhat deformed example of P. psittacina. According to the
label, Sturm regarded it as synonymous with P. amalia, Burm., and as such it has
been classed by subsequent authors. Sturm gave the locality as " Brazil," Burmeister as
"Valparaiso"; but the insect is most certainly Mexican. It is to be remarked that
Burmeister placed his P. amalia in a different section (sternal process very short) of the
genus from P. auripes (sternal process projecting as a strong cone beyond the middle
coxse). In both of Sturm's species, P. psittacina and P. Iceta, the sternal process is of
the same length, very short, and only slightly projecting.

14. Plusiotis COStata. (Tab. XVI. fig. 14, j ; 15, $ var.)
Plusiotis cost at a, Blajich. Cstt Coll. Ent. i. p. 210 \

Hab. Mexico \ Orizaba, Mirador {Salle), Jalapa, Misantla {Hoge).
BIOL. CENTR.-AMEE., Coleopt., Vol. II. Pt. 2, August 1888. 2 00

282 LAMELLICOENIA.

More than fifty examples, offering scarcely any differences of form or punctuation. It
is a broadly-ovate species, the outline being due to the flattened expansion of the sides
(including the marginal rim) of the elytra ; the convex interstices are smooth, except the
second, and towards the base the sixth, both which are irregularly punctured. The
pygidium is minutely punctured, and not closely strigulose as in P. psittacina ; and the
sternal process is more than twice as long as in that species and conical. Blanchard
described P. costata from a singular colour-variety, clayey reddish-tawny, which proves
to be a rare exception ; the great majority of our specimens being apple-green,
with the apical callus concolorous, and the thickened margins of the elytra and the
tarsi sometimes golden. Intermediate examples occur in which the upper surface
has strong yellow reflections. The pygidium in the female is flattened to the apex,
in the male it is evenly convex. The size varies from 25 to 35 millim.

15. Plusiotis chloreis. (Tab. XVI. fig. 16, 6 .)

p. costatce proxime affinis, sed minor, oblonga, thorace postice angustiore angulisque anterioribus valde porrectis,
acutis; elytris profundius punctulato-sulcatis lateribusque prope medium multo minus explanatis cum
margine minus incrassato ; toto laete pomaceo-viridis, tarsis viridi-metallicis ; J clypeus sicut in P. costata cS ,
apice anguste sinuato; pygidio differt ante apicem protuberanti-convexo. Processus sternalis paullo
longior, acute conicus. $ ? Elytra versus apicem paullo dilatata margineque usque prope apicem
incrassato.

Long. 25 millim. d $ ?

Eab. Mexico, Volcan de San Martin {Salle).

The second and sixth elytral interstices are, nearly as in P. costata, irregularly
punctured towards the base. This mode of sculpture and the much longer sternal
process distinguish the species from P. psittacina, which it resembles in the oblong
form of the body. The female example, very imperfect, is from Orizaba {Salle).

16. Plusiotis prasina.

Plusiotis prasina, Boucard, Proc. Zool. Soc. 1878, p. 295, t. 16. fig. 5 '.
ffab. Mexico 1, Orizaba, Yolos {Salle).

Three examples, including, according to Boucard, a type-specimen. Length 30
millim. d ? .

Closely allied to P. laniventris, the sides of the abdomen and the pygidium in the
male thinly clothed with long hairs. P. prasina differs, however, from that species in
the outer side of all the tibiae being smooth and not scabrous, and in the entire upper
surface, but especially the elytra, being much more finely and smoothly punctured,
though in both the species the punctuation extends over the whole elytra. The punc-
tured striae are scarcely impressed. The female in both species has the same broadly-
ovate outline, with the sides broadly expanded and the outer margin flexuous or
arcuated. The legs are of a pinkish-clayey hue, the femora greenish, the tarsi

PLUSIOTIS. 283

golden-green, but the claws generally piceous. The sternal process is very short and
conical.

17. Plusiotis laniventris. f

cJ . Pelidnota laniventris, Sturm, Cat. 1843, p. 339, t. 3. fig. 5 '.
? . Pelidnota latipennis, Sturm, loc. cit. p, 338, t. 3. fig. 4 '.
Plusiotis laniventris, Burm. Handb. der Ent. iv. 1, p. 420 \

Hah. Mexico ^ ^ 3 (^SalU, ex coll. Sturm, c? $ ), Jalapa (Flohr, Edge).

The male only has the abdomen and pygidium clothed with long soft blonde hairs ;
the pubescence of the sternum is also longer and denser than in the allied species.
The elytra are coarsely and rugosely punctured throughout and furrowed with deep
punctured striae. All the tibise are very coarsely scabrose-punctate on their outer sides.

18. Plusiotis adelaida. (Tab. XVI. fig. 17.)

Pelidnota adelaida, Hope, Proc. Ent, Soc. Loud. Aug. 3, 1840 ; Trans. Ent. Soc. Lond. iv. Proc. p. 8 \
Plusiotis adelaida, Burm. Handb. der Ent. iv. 1, p. 421 ' ; Boucard, Proc. Zool. Soc. 1875, p. 121 \
Pelidnota ornatissima, Sturm, Cat. 1843, p. 341, t. 3. fig. 7*.

Eai. Mexico ^ ^ 4^ l^ Parada near Oaxaca ^ (Salle), Jalapa, Oaxaca (Edge) ; Guate-
mala, San Geronimo (Champion).

Fourteen examples, including all colour-gradations from the green type-form with
silvery elytral vittee to a dark coppery-red with silvery-green vittee, and the type-speci-
men of Sturm's P. ornatissima, which is intermediate in colours. The sternal process
is very short and obtusely triangular. An example from La Parada is figured.

19. Plusiotis rodriguezi.

Plusiotis rodriguezi, Boucard, Proc. Zool. Soc. 1878, p. 295, t. 16. fig. 1*.

Eah. Guatemala, near the city (Bodriguez i), Totonicapam, Quiche Mountains 7000
to 9000 feet (Champion).

An oblong apple-green species with silvery tinge, not unlike P. lacordairei ; the
humeral and apical calli of the elytra and margins are polished silvery-green, and the
underside, femora, and tarsi metallic light green, with the sterna and legs and sides of
abdomen clothed (in the male) with blonde pubescence as long and dense as in
P. laniventris. The outer sides of the tibiae are reddish. The sternal process is
extremely short, tuberculiform, and polished.

20. Plusiotis lecontei. (Tab. XVI. fig. 19.)

Plusiotis lecontei, Horn, Trans. Am. Ent. Soc. x. p. 120 '.

Eah. NoETH Ameeica, Arizona i, New Mexico i. — Mexico, Pinos Altos in Chihuahua
(Buchan-Eephurn), Ciudad in Durango (Forrer), Suapan, Volcan de Orizaba (Salle).

2 00 2

284 • LAMELLICOENIA.

An oblong species of dark-green colour with strong metallic gloss, especially on the
margins, scutellum, abdomen, and pygidium ; the elytra punctulate-sulcate ; and the
head (especially the clypeus) smaller than in the allied species. The sternal process
is very short, tuberculiform, and hidden in the long fulvous villosity of the pectus.

The Orizaba example in the Salle collection is much larger than those from northern
localities (30 millim., d ).

A specimen from Ciudad is figured,

21. Plusiotis woodi.

Plusiotis woodii, Horn, Trans. Am. Ent. Soc. xii. p. 124 \

Hah. NoETH Ameeica, Rio Grande ^, Texas. — Mexico, Pinos Altos in Chihuahua
(BuchanSejphurn).

We have only one much damaged example of this distinct species, which is regularly
and rather distantly punctured (without impressed striae) over the elytral surface. The
colour is a beautiful light green, metallic on the under surface. The sternal process
is very short, tuberculiform.

22. Plusiotis chalcothea. (Tab. XVI. fig. 8.)

EloDgato-oblonga, convexa, saturatius fasco-aenea, nitidissima, viridi-seneo-relucens ; capite parvo, dense punc-
tato, vertice laeviore ; clypeo antice triangulari, apice anguste producto et reflexo, c? breviore, 5 longiore ;
thorace convexo a basi ad apicem curvatim angustato, angulis anticis obtusis, posticis subrectis, margine
basali medio subinterrupto, supra disco minutissime sparsim punctulato vel laevi, lateribus et sulculo
marginali grossius et crebrius punctatis ; elytris punctulato-striatis, stria suturali versus apicem profunde
impressa, margine laterali ( c? $ ) tenui. Pygidium ( c? $ ) mediocriter convexum, sparsim longe pilosum,
minute punctulatum vel strigulatum vel fere laeve, splendide viridi-seneum. Subtus cum pedibus viridi-
aenea, nitida, his plus minusve piceo-rufo-translucentibus, pectore et abdomine lateribus longe fulvo-villoso.
Sterni processus minutus, tuber culifonnis.

Long. 25-31 millim. S 2 •

Hah. Costa Rica ( Van Patten).

This species approaches the Colombian P. anomala (Burm.) in some of its characters,
but it is a more typical Plusiotis ; the postcoxal process of the prosternum is well
developed, but bends at an obtuse angle, and the apical part between the coxae is
unusually broad.

Eight examples.

23. Plusiotis mniszechi.

Plusiotis mnizechii, Boucard, Proc. Zool. Soc. 1875, p. 124, t. 16. fig. 41 \
Hah. Mexico 1.

This species is not contained in our collection.

CHETSINA. 285

CHEYSINA.

Chrysina, Kirby, Zool. Journ. iii. pp. 127, 520 (1827) ; Burmeister, Handb. der Ent. iv. 1, p. 414 ;
Lacordaire, Gen. Col. iii. p. 359.

Like Plusiotis, a characteristic Central- American genus, containing species of large size
and beautiful colours ; but differing as regards distribution in being confined to Mexico.
The characters which distinguish it from Plusiotis are almost solely derived from
the males, this sex having enormously developed hind legs, the females being Plusiotes
in everything except the convexity or protuberance of the hind part of the postpectus
and the inner end of the posterior coxse — a peculiarity developed in far greater degree
in the male, but transmitted in part to the female.

1. Chrysina macropus.

(J . ScarahcBus macropus, Francillon, Descr. of a new and rare insect from Potosi, 1795, tab. J ;

Shaw, Nat. Miscell. tab. 384.
? . Chrysina peruviana, Kirby, Zool. Journ. iii. p. 520, t. 14. fig. 3.
Chrysina mexicana, G. E. Gray, Griffith's Anim. Kingd., Ins. i. p. 517, t. 46. fig. 1.
Chrysina macropus, Burm. Handb. der Ent. iv. 1, p. 416 \

Hah. Mexico, San Luis Potosi i, Orizaba {Salle), Misantla, Jalapa (Edge).

The males vary much in size, and correspondingly in the convexity or protuberance
of the hind part of the postpectus and the inner condyle of the coxae to which the
monstrous hind femora are articulated. The condyle, the trochanters (at least their
outer sides), and the anterior edge of the coxae are blackish or dark green in both sexes ;
and in the female the epipleural fold of the elytra terminates abruptly, forming a short
lobe for the grasp of the vigorous males in copulation.

I cannot but consider the following to be varieties of C. macropus, but they are
varieties of singular interest as resting chiefly on modifications of the sexual characters,
and at the same time local.

Yar. 0. mniszechi, Boucard MSS. in coll. Salle. Trochanter, condylus coxarumque margo anterior cuprei ex
parte nigrescentes. S minus late oblongus ; $ elytrorum plica epipleuralis postice minus abrupta (nee
verticaliter) terminata.

Hah. Mexico, Tepansacualco {Salle), Jalapa {Edge).

Var. G. adolphi, Chevr. Kev. Zool. 1859, p. 481 \ Trochanter, condylus coxarumque margo anterior virides
partim l£ete cuprei. S minus late oblongus, postpectusque minus convexum ; $ elytrorum plica epipleuralis
postice gradatim terminata ibique pauUo explanata nee lobata.

Eab. Mexico, Oaxaca ^ (Fenochio, in coll. Bates), Juquila {Salle). Our series includes

Chevrolat's types.

Var. G. modesta, Sturm, Cat. 1843, p. 338, t. 3. fig. 31 $ . Trochanter, condylas coxarumque margo anterior
omnino geneo-virides, elytrorumque plica sicut in G. adolphi. Thorax et elytra subtilissime punctulata
fere laevia ; tarsi chalybei.

Hah. Mexico ^ {SallS, ex coll Sturm). Specimen typicum.

286 LAMELLICOENIA.

2. Chrysina amoena.

(?. Pelidnota amcena, Sturm, Cat. 1843, p. 337, t. 3. fig. 2\
? . Pelidnota ceruginosa, Sturm, loc. cit. t. 3. fig. 1 ^
Chrysina amo&na, Burm. Handb. der Ent. 1, i. p. 417 \

Hob. Mexico ^ ^ ^ {Salle, ex coll. Sturm ; exempl. typica), Ciudad in Durango
{Edge), Jalapa {Salle), Mineral el Chico {Flolir, in coll. Bates).

The upper surface in this distinct species is thickly punctured and less shining, the
elytra very closely punctured, with finer punctures intermixed, and scarcely any trace
of strise. The underside varies in colour, but is much more brilliant than in C. macropus,
wholly rich red-coppery, or the abdomen silvery and sometimes dark near the base. In
the single female from Ciudad the head, femora, tibiae, and pygidium are tawny- vermilion
with a metallic tinge. The underside and pygidium are clothed with long hairs, which
are denser in the female. The epipleurae in the female taper gradually nearly as in
C. macropus, var. adolphi, but without expanded upper margin, and they reach only a
little beyond the middle of the elytra instead of nearly to the outer apex.

Subfam. HETEEOSTERNINM

MACROPOIDES.

Macropoides, Guerin, Rev. Zool. 1844, p. 262 ; Lacordaire, Gen. Col. iii. p. 360.
Macropnus, Horn, Proc. Acad. Phil. 1866, p. 397.

This genus, with Heterosternus and its allies, forms a distinct subfamily (indicated
by Horn in defining the genus Macropnus), distinguished from the Rutelinee by the
flexuous and fine frontal suture, and from the Areodinse by the form of the clypeus
(strongly narrowed from the base and obtusely trapezoidal) and of the mandibles (the
outer apical angle bent upwards and prolonged into a tapering and ascendent tooth
projecting beyond the margin of the clypeus) ; in repose the ascendent apices of the two
mandibles lie parallel and close to each other. The form resembles that of the
mandibles in Mutelisca, and is an exaggeration of that usual in Parastasia. The base
of the thorax is generally immarginate ; but in this respect Heterosternus is peculiar,
the marginal sulcus being deeply impressed except in the middle, where it is faint
or interrupted. The males in some of the species have the same enormous develop-
ment of the hind legs, with a corresponding protuberant postpectus and inner end of
the coxae, as in Chrysina. The major tarsal claw in all the tarsi of both sexes is forked,
and the postcoxal process of the presternum short and triangular, not bent and continued
horizontally between the coxae as in Pelidnota and its allies.

Three species of Macropoides are known, all peculiar to the Mexican and Central-
American fauna.

MACEOPOIDES. — HETEEOSTEENUS. 287

1. Macropoides nietoi. (Tab. XVI. %. 20, $ .)

Macropoides nietoi, Guerin, Rev. Zool. 1844, p. 259; Lac. Gen. Col, Atlas, t. 34. fig. 3, c? '•
Hah. Mexico i, Cordova (8alU) ; Nicaeagua, Chontales (Janson).

A female specimen from Cordova is figured.

2. Macropoides mniszechi.

Macropnus mniszechi, Salle, Rev. et Mag. Zool. 1873, p. 14, t. 10. figg. 1-1 e\
Hah. Mexico, Toxpam near Cordova ^ {Salle, exempl. typica).

The clypeus is rather longer and more narrowed than in M. nietoi, and rather
deeply notched at the apex. The species is perfectly congeneric with M. nietoi.

3. Macropoides crassipes.

Macropnus crassipes, Horn, Proc. Acad. Phil. 1866, p. 397; Trans. Am. Ent. Soc. i. t. 3. fig. 7\
Hah. Honduras 1.

The incomplete and inaccurate description of Macropoides given by Guerin and
Lacordaire, the latter by placing it near the Pelidnotce and leaving it to be inferred that
it has the same characters as that group, led Dr. Horn to institute the genus Macropnus
on a large species from Honduras, which he informs me he now believes to be congeneric
with M. nietoi. The species is not represented in our collection.

4. Macropoides (?) ?

Hah. Nicaeagua, Chontales {Belt).

A single example of a species probably belonging to this genus, but being a female
it is not possible to refer it with certainty.

HETEEOSTEENUS.

Heterosternus, Dupont, in Guerin^s Mag. Zool. 1832, Ins. t. 10; Burmeister, Handb. der Ent. iv.
1, p. 411; Lacordaire, Gen. Col. iii. p. 360.

Two species only are known of this genus, remarkable for its elongate form and the
great length of the hind legs in the male with greatly elongated tibise. The postpectus
and condyles of the hind coxae are still more strongly developed and protuberant than
in Chrysina macropus ; but the coxal plate is much widened towards the supports of
the femora, which latter are extremely elongated and of uniform width. The clypeus
and mandibles are shaped almost exactly as in Macropoides nietoi. In the female the
epipleurge terminate at the level of the hind coxae, where the elytra are angularly dilated.

288 LAMELLICOENIA.

1. Heterosternus buprestoides.

Heterosternus buprestoides, Dupont, in Guerin^s Mag. Zool. 1832^ Ins. t. 10 '.
Hah. Mexico 1.

This species is not contained in our collections.

2. Heterosternus rodriguezi. (Tab. XVI. fig. 18, 6 .)

Heterosternus rodriguezii, Candeze in Har. Col. Hefte, v. p. 43\

Hab. Guatemala^, Los Diamantes {Champion) ; Panama, Chiriqui {coll. Bates).

Ochreous-tawny above, with the margins of the head and thorax and frontal suture
edged with black, the underside dark chestnut-brown. The male differs from that of
H. buprestoides in the elytra not being narrowed and prolonged at the apex, and in the
hind tibiae being strongly curved and densely fringed inside with fulvous hairs.

Mr. Champion obtained one example only, a male, on the Guatemalan Pacific slope.
A female specimen from Chiriqui, resembling an ordinary Pelidnota in form and many
years in my collection without a name, almost exactly resembles the Guatemalan
male in colour and sculpture ; it differs only in the suture and outer margin of the
elytra, as well as the head and thorax, being narrowly edged with black. The male
example from Los Diamantes is figured.

PARISOLEA.

Gen. Macropoidi proxime affinis, sed sexus quoad pedes posticos etc. baud diversi. Corpus oblongo-ovatum,
mediocriter convexum. Clypeus trapezoidalis, angulis anticis rotundatis, margine acute reflexo, antice
profunde et sat anguste sinuato ; sutura frontalis flexuosa, Mandibulse acuminatse, ascendentes. Labrum
omnino deflexum. Antennae articulis 2,°-%^ cylindricis arete conjunctis. Tborax basi immarginatus.
Elytra supra coxas posticas leviter angulatim dilatata. Prosterni processus postcoxalis brevis, triangularis,
planus ; mesosterni mucro ultra coxas productus sat planus. Pedes ^ $ mediocres ; tibi« 4 posteriores
apice extus unispinosse ; tarsi omnes unguibus majoribus apice fureatis ; c? tarsi anteriores ungue majore
longiore et robustiore denteque superiore tenui, spiniformi.

Two new species from Mexico are referable to this genus.

1. Parisolea alba.

Supra albo-, subtus fulvo-, testacea, nitida ; capite thoraceque toto sparse punctatis, hoc prope medium rotundato-
dilatato, postice parum antice fortius angustato, angulis anticis subrectis, posticis obtusis subrotundatis,
margine lateral! tenui usque ultra angulum posticum continuato ; elytris punctato-striatis, striis 3^ 4» et
5^ e-'que geminatis, interstitiis planis IsBvibus, 2° (inter striam suturalem et 2") lato postice punctato, latcribus
striis quatuor paullo irregularibus. Pygidium J paullulum convexum, $ planum, transverse strigulosum.
Pectus albo-villosus.

Long. 19-21 millim. d" $ .

Hab. Mexico, near the city (V) (Flohr).

2. Parisolea Mva. (Tab. XVII. fig. 1.)

p. alba differt solum colore fulvo- vel rufo-testacea. S 2 ■
Long. 18-20 millim.

Hab. Mexico, Jalapa [Hbge). Six examples.

COTALPA.— PAEACHETSINA. 289

Subfam. ABEODIN^.

COTALPA.

Cotalpa, Burmeister, Handb. der Ent. iv. 1, p. 423 (1844) ; Horn, Trans. Am. Ent. Soc. 1871,
p. 338.

A genus hitherto recorded only from temperate North America ; six species are
known, chiefly from the southern and western States. The two following have a longer
and more acutely rounded clypeus than in the typical species of the genus, but not
much more so than in C. ursina, and they differ further in the major claw of all the
tarsi, in the male, being cleft (unequally and narrowly) at the apex.

1. Cotalpa nigro-asnea. (Tab. XVI. fig. 22, c? .)

Anguste ovata, capite, thorace pygidioque viridi-aeneis, politis, elytris corpore subtus cum pedibus nigris viridi-
Eeneo tinctis, subtus cum femoribus, pronoti marginibus et pygidio longe (pectore toto densissime) rufo-
villosa. Caput grosse sed discrete punctatum, punctis minutis intermixtis ; clypeo semiovato, antice
subacute rotundato, margine reflexo, sutura frontali pauUo flexuosa ; thorace minus transverso (paullo
elongato), paullo post medium angulatim dilatato, antice rectilineatim angustato, angulis anticis acutis,
posticis obtusis sed distinctis, margine basali medio interrupto ; scutello sparsim punctulato ; elytris ante
medium perparum ampliatis (nee angulatis), epipleuris apud coxas posticas terminatis, sparsim (apud
strias lineatim) punctulatis, limbo posteriore rugoso-punctato et fulvo-setoso. Mesosternum inter coxas
anguste carinatum, nuUo modo porrectum. Pygidium ( S ) leviter convexum, subconfluenter punctulatum,
punctis piliferis majoribus intermixtis. c? • Ungues majores prope apicem fissi, parte superiore tenui
setiformi, breviore.

Long. 21 millim. S .

Ilab. Guatemala, Cerro Zunil 4000 to 5000 feet {Chamjpion).
Five examples, all males.

2. Cotalpa aurescens. (Tab. xvi. fig. 21, s .)

C. nigro-cenece afflnissima ; diflfert colore supra (clypeo obscure excepto) laetius viridi-senea, certo situ aureo-
relucens, pectore, femoribus pygidioque densius et longius fulvo villosis ; occipite tboracisque margine
fulvo-fimbriatis. Clypeus semiovatus, sed mox a basi paullo dilatatus, margine altius elevate. Csetera
sicut in C. nigro-cenea.

Long. 23 millim. S .

Hah. Mexico, Chiapas (Salle).

One example only. The long and dense pale tawny villosity of the under surface,
pyoidium, &c. is exceedingly fine and silky, differing much from the shorter and stiffer
rusty-red, but still very dense, hairs of C. m'gro-wnea.

PAEACHRYSINA.

Chrysina (?), Thomson, Archiv. Ent. i. p. 148 (1857).

The small species, C. truquii, which Thomson doubtfully referred to the genus
BIOL. CEOTR.-AMEK., Coleopt., Vol. II. Pt. 2, August 1888. 2 PP

290 LAMELLICORNIA.

Chrysina^ differs from the group to which Chrysina belongs by the distinct frontal suture.
This suture is flexuous ; the clypeus is semiovate (in the female more quadrate), with the
margins much reflexed ; the mandibles with entire (rounded) outer edge ; and the thorax,
margins, and the under surface of the body villose. In short it has all the characters
of the Areodinae, with the important peculiarity that it has 9-jointed antennae, in
which it differs from all other Rutelinse. The males have greatly enlarged hind legs,
with broad, interiorly-flattened femora and tibiae, the inner apex of the latter prolonged
and acute, and the trochanters with a long, free, hook-shaped apex. The forehead in
the male is flattened, forming a semi-ovate sloping disc. The mesosternum in the male
is prominent between the middle coxae, and conical but scarcely projecting ; in the
female depressed. In the female the forehead is simple, and the hind legs normal,
except that the apex of the trochanters is free for a short space and the inner apex of
the tibiae is slightly produced. In both sexes the tarsal claws are very long and acute,
and all are simple ; they are very unequal in length, and the tarsal joints are short and
compact as in all true Rutelidae, so that there is no ground for referring the genus to
the Melolonthidae as has been suggested. In the Salle collection the species bears the
name of Plectris truquii.

1. Parachrysina truquii. (Tab. XVI. figg. 23, c? ; 24, $ .)

Chrysina (?) truquii, Thomson, Archiv. Ent. i. p. 148, t. 10. fig. 4 \
Hah. Mexico (Truqui^), Morelia {Salle), Yautepec {Hoge).

The male is more ovate than the female, and diflers from it in colour and punctuation,
the thorax and elytra being fulvous, the former finely punctured and with an aeneous
and smooth dorsal vitta ; in the female the thorax is strongly punctured and brassy-
green, with the side-margins broadly fulvous. The size varies from 11 to 15 millim.

BYRSOPOLIS.

Byrsopolis, Burmeister, Handb. der Ent. iv. 1, p. 425 (1844) .

A genus hitherto known only from tropical South America, whence four species
have been described. They seem to be perfectly congeneric with Burmeister's
typical species (known to me only by the description), with which they agree in the form
of the maxillae, and especially in the slender tarsi and tarsal claws ; the peculiar
form of the labrum is not mentioned by Burmeister — in our species its upper surface
is entirely concealed under the clypeus. They approach the Cyclocephalinae, especially
the genus Bemocrates, from which the shorter and closer-jointed hind tarsi chiefly
distinguish them and justify their retention in the Rutelidae. This at least applies
to the first species, in our two examples of the second the tarsi are wanting. The pro-
sternum has a broad, scarcely ascendent, postcoxal process ; the mesosternum is simple.

BYESOPOLIS.— PHALANGOGONIA. 291

1. Byrsopolis lanigera. (Tab. xvii. %. 2.)

Castaneo-nitida, supra glabra, subtus cum pygidio et femoribus dense fulvo-hirta vel villosa ; capite dense
aspere confluenter punctato ; clypeo sinuatim angustato, apice quadratim sublobato, reflexo, truncato ;
thorace quam elytra multo angustiore, lateribus regulariter arcuatis, angulis posticis rotundatis, anticis
nuUo modo productis, anguste marginato, margine basali medio subinterrupto, supra regulariter convexo,
confluenter disco sparsius punctato, interstitiis punctulatis linea irregulari dorsali laevi ; scutello breviter
cordato; elytris subtilius punctulatis, nitidis, costulis (vel striis geminatis) utrinque quatuor parum
distinctis ; pygidio parum convexo, dense piloso-punctulato.

Long, 28 millim.

Hah. Mexico (Salle, ex coll. Sturm).

A single perfect example, bearing Sturm's label " Scarabceus laniger, mihi."

2. Byrsopolis chihuahuae.

Minus convexa, rufo-castanea, subtus sicut in S. lanigera fulvo-villosa, sed pygidio plus minusve SBnescenti ;
capite crebre aspere confluenter punctato; clypeo triangulari, lateribus leviter sinuatis, apice medio
acuminato-reflexo ; thorace multo minus convexo, margine paullo crassiore et magis reflexo omnino
integro, paullo post medium subangulatim dilatato, angulis posticis subrectis, anticis subacutis, supra
sicut in S. lanigera punctato ; scutello aeneo vel cupreo ; elytris grossius punctulatis, utrinque costulis
3 vel 4 distinctioribus cum striis punetatis geminatis impressis. (Tarsi omnes desunt.)

Long. 26-28 millim.

Hob. Mexico, Pinos Altos in Chihuahua {Buchan-Hephurn).
Two imperfect examples.

Subfam. ANOPLOGNATHINM

PHALANGOGONIA.

Phalangogonia, Burmeister, Handb. der Ent. iv. 1, p. 451 (1844).

A genus, so far as at present known, peculiar to Mexico and Central America.
Three species have been described.

1. Phalangogonia obesa.

Phalangogonia obesa, Burm. Handb. der Ent. iv. 1, p. 452 ^
Hah. Mexico ^, Chinantla {Salle).

Burmeister mistook the example of this species on which he founded his genus for a
male, and hence gave erroneous characters to Phalangogonia and to the subfamily to
which it belongs. It was evidently a female, as the male has robust tarsi and claws, and
the anterior angles of the clypeus produced and dentiform, as in many of the Australian
Anoplognathinse. The three examples of the species in the Salle collection vary much
in colour, and one is a male. Besides the acutely-dentated angles, the arcuated fore
border of the clypeus is strongly reflexed ; and the robust major claw in all the tarsi is
not forked as in the male, nor properly speaking cleft, the upper part of the divided

2 PP 2

292 LAMELLICOENIA.

tip being very spiniform and much shorter than the lower part. The hindmost tarsi
only have a brush of stiff fulvous hairs beneath the first two joints.

The thorax is rather strongly punctured, quite strongly and closely so towards the
sides ; the lateral margin, from the dilatation to the anterior angles, is greatly
decreased in thickness, and the anterior angles are acute. The elytra are finely and
sparsely punctulated, but vary somewhat in this respect ; the costse are indicated by
punctured lines, and the posterior limb is closely and irregularly punctured; the
sutural apex is not produced. The legs, including the tarsi, are red. The pygi-
dium is subopaque, finely alutaceous or vermiculate-strigulose, without mixture of
piliferous punctures.

2. Phalangogonia sperata.

Phalangogonia sperata, Sharp, Journ. Linn. Soc.j Zool. xiii. p. 134 \
Phalangogonia stipes, Sharp, loc. cit.^

Hah. Centeal Ameeica ^ ; jSicaeagua ^ {Salle), Chontales (Janson) ; Panama, Volcan
de Chiriqui 4000 to 6000 feet {Champion).

A large number of examples.

Differs from P. ohesa (both sexes) in the much finer and sparser punctuation of the
thorax and in the lateral margins of the same being continued of equal thickness to the
anterior angles, which latter are obtuse, sometimes rounded ; also in the sutural apex
of the elytra having a distinct spiniform tooth, and in the pygidium being very
minutely strigulose and sprinkled with larger piliferous punctures. The male differs
from the same sex of P. ohesa in the three basal joints of the hindmost tarsi and two
of the middle tarsi being clothed with a brush of fulvous hairs ; it has similarly
robust and very unequally cleft major tarsal claws, and the clypeus is acutely produced
at the anterior angles, but the front margin is much straighter and scarcely arcuated.

The colour varies little on the upper surface, but on the under all gradations exist
from uniform fulvo-castaneous to black, the metasternum sometimes and the abdomen
at others only being black ; the last-mentioned (described as the colour of P. stipes by
Dr. Sharp) is most prevalent in Chiriqui.

Examples occur at Chontales with black tarsi (the abdomen and sternum variable),
but I can detect no structural difference between them and the others.

3. Phalangogonia lacordairei. (Tab. xvii. fig. 3.)

Phalangogonia ohesa, Lacordaire, Gen. Col. iii. p. 371 ^ (nee Burm.).

Late ovata, fulvo-testacea, polita, marginibus capitis, thoracis, scutelli elytrorumque anguste nigris ; subtus
nigra, nitida, femoribus et tibiis rufo-castaneis ; pygidio nigro politissimo, punctis nonnullis longe piliferis
versus apicem exceptis, impunctato. Clypeus dense confluenter punctatus ( $ ), antice leviter arcuatus,

. angulis valde rotundatis ; thorax post medium angulatim dilatatus, margine antice gradatim attenuate

PHALANGOGONIA.— PLATTCCELIA. 293

prope angulos acutos anticos tenuissimo, supra aequaliter subsparsim punctulato; elytra medio valde
rotundato-dilatata, sicut in P. obesa puiictulata. Processus sternalis validior oblique descendens.
Long. 27-28 millim. $ .

Hab. Mexico i, Cordova (Salle).

Two examples, both females. This species bears the name P. lacordairei in the Salle
collection.

4. Phalangogonia parilis. (Tab. xvii. %. 4.)

Minor, paullo angustius ovata, fulvo-testaeea, nitida, subtus cum pedibus piceo-nigra ; clypeo angustius
quadrato, conflueuter punctato, margine antico arcuato, angulis distinctis sad valde obtusis, fronte sparse
punctate punctis minutissimis intermixtis ; thorace medio angulatim dilatato, sparse punctato et subtiliter
punctulato prope latera scabroso-punctato, margine lafcerali usque ad angulos incrassato ; elytris conspicue
juxta costas lineatim punctatis ; pygidio crebre striguloso-punctato, subopaco. Processus sternalis
mediocriter elongatus, borizontalis. Tibiae anticae bidentats.

Long. 20-22 millim.

Hob. Guatemala, Cerro Zunil 4000 to 5000 feet (Champion).

Among the numerous examples examined no sexual differences can be detected. In
all, the major claw is forked at the apex in all the tarsi. Some examples, which may
be males, have a rather shorter and more quadrangular clypeus than the others.

5. Phalangogonia championi. (Tab. xvii. fig. 5.)

Oblonga, sat robusta, nigra, nitida, vertice et basi suturaque elytrorum prope scutellum fulvis (raro toto nigra),
subtus (pectore densius) griseo-birta ; clypeo mediocriter transverso, omnino confluenter punctato, margine
antico valde arcuato, fronte sat dense vertice sparsiua punctato punctis minutis intermixtis ; tborace
medio valde subangulatim dilatato, margine laterali passim crasso, conspicue punctato, dorso sparsim
versus latera densius confluenter strigoso-punctato ; elytris sparse sed conspicue, apud costas lineatim,
punctatis ; pygidium densissime undulato-strigulosum, breviter apice longius setosum ; pectus et abdo-
minis latera minute dense punetulata. Processus sternalis conicus, minus elongatus. Tibiae anticae tri-
dentatae, dente superiore interdum obsoleto.

Long. 23-25 millim.

Hah. Guatemala, Cerro Zunil 4000 to 5000 feet (Champion).

Seven examples, apparently all females. The tarsal claws are rather small and
slender, and the major claw is not longer or thicker than the other, but is forked at
the apex.

PLATYCCELIA.

Platyccelia, Burmeister, Handb. der Ent. iv. I, p. 452 (1844).

A genus characteristic of the elevated regions of tropical South America, whence
twelve species have been described and many more exist unnamed in collections.

■ ' . ■ ■ -' ^ '■.•"■.■„■■,•'•

1. Platyccelia humeralis. (Tab. XVil. fig. 8.)

Oblongo-ovata, aequaliter et valde convexa, dilute pomaceo-viridis (ventre sternoque interdum nigris), thoracis
margine anguste, scutello elytrisque margine laterali, flavis, bis interstitiis alternis flavo-viridibus ; tarsis.

294 LAMELLICOENIA.

antennis et palpis fulvis ; clypeo densissime ruguloso-punctulato, fronte et thorace subtilissime punctulatis,
punctis majoribus intermixtis ; thorace brevi, lateribus cum angulis posticis valde rotundatis, basi medio
lobo rotundato, et utrinque late et profunde sinuato ; elytris striato-punctatis, punctis versus latera
solum impressis, interdum nigricantibus, bumeris prominulis crasse marginatis, basi intra bumerum
breviter sinuato ; pygidio laevi, punctis magnis nonnuUis piliferis ; pectore, coxis femoribusque parce
griseo-hirtis. Processus stemalis valde elongatus. ^ . Tarsi antici ungue majore elongate, gracili apice
fisso, caeteris tarsis furcatis. 5 . Ungues majores toti furcati.
Long. 26-30 millim. d 2-

Hah. Mexico, Coatepec {Flohr); Costa Rica (Van Patten), Volcan de Irazu 6000 to
7000 feet {Bogers); Pajs^ama, Volcan de Chiriqui 4000 to 6000 feet {Champion).

In colour and sculpture this species answers to the description of P. nervosa., Kirsch ;
but it evidently belongs to a different section of the genus, being of oblong form with
the convexity of the elytra continuing to the apex, Kirsch 's species being widened and
flattened behind. The prominence of the shoulders is variable ; in some few examples
they are rectangular — this is the case with the single Mexican specimen sent to me by
Mr. Flohr. I have examined about fifty examples.

Mr. Champion found a large number of this species about the banks of a lagoon in
the dense forest ; these had no doubt been blown into the water by the wind, many
being submerged or dead. A specimen from the Volcan de Chiriqui is figured.

SPODOCHLAMYS.

Spodochlamys, Burmeister, Handb. der Ent. iv. 2, p. 529 (1855).

Two species of this peculiar genus have been described, both from tropical South
America.

1. Spodochlamys cupreola. (Tab. xvil. fig. 10.)

S. ccesarem affinis ; angustius oblonga, elongata, supra fusco-cuprea subopaca ; capite tboraceque aequaliter
densissime punctatis, clypeo semiovato, margine parum reflexo; tborace brevissimo, margine lateral!
grosse irregulariter crenato, angulis anticis prolongatis, acutis ; elytris undique sub lente minutissime
punctulatis punctis sparsis majoribus intermixtis, apice suturali dentiformi ; subtus aBueo-cuprea, nitida,
pectore fulvo-birto; tibiis grosse punctatis; labro clypeoque subtus laetius cupreis. Tibiae anticae
tridentatae. Tarsi unguibus majoribus apice furcatis.

Long. 27 millim. $, -

Hah. Panama, Chiriqui (Trotsch).
One example only.

Subfam. GENIATINM

BOLAX.

-eo/«^, Fischer de Waldheim, Bull. Moscou, i. p. 45 (1829); Lacordaire, Gen. Col. iii. p 382;
Burmeister, Handb. der Ent. iv. 1, p. 485.

ioa?o^y^a, Westwood, Guerin's Mag. Zool. t. 72 (1833).

Twenty species of this genus have been described, all from tropical South America.

BOLAX.— LEUCOTHYEEUS. 295

The two following, the first recorded from north of the Isthmus of Panama, are among
the largest and finest species of the genus.

1. Bolax magnus. (Tab. XVli. fig. 6.)

B. andicolce (Burm.) afiSnis, tibiis poaticis gracile suratis. Major, elongatus, postice dilatatus, niger, nitidus,
abdomine elytrisque fulvo-testaceis, his utrinque plus minusve distincte fusco-trivittatis ; capite cum
thorace sparse umbilicato-punctato ; clypeo brevi et lato, obtusissime rotundato ; thorace ante medium
angulatim dilatato, postice sinuatim mediocriter angustato, angulis posticis rectis, anticis acutis, dorso
medio aequaliter convexo, lateribus antice et postice transversim depressis ; elytris punctato-striatis,
interstitiis alternatim sparsius et densius punctatis, punctis nonnullia transversim confluentibus ; pygidio
grosse sed baud profunde sparsim transverso-punctato.

Long. 15-21 millim. c? $ .

Sab. Panama, Bugaba 1000 feet, Volcan de Chiriqui 2000 feet {Cham;pion).
Found in abundance by Mr. Champion in the forest-region of Chiriqui.

2. Bolax flaveolus. (Tab. xvii. fig. 7.)

B. magna proxime affinis ; B. andicolce quoad colores similior, sed diflfert metasterno flavo elytrisque nuUo
modo sulcatis. Ochraceo-testaceus, capitis thoracisque marginibus nigro-fuscis, capite infra cum partibus
oris, pedibus totis, mesosterno et metasterni episternis nigris nitidis ; capite, clypeo et thorace sicut in
B. magno elytrisque sat crebre transversim punctato-rugulosis ; pygidio grosse sed baud profunde sparsim
transverso-punctato.

Long. 15-20 millim. c? $ •

Hab. Nicaragua, Chontales {Belt, Janson).
Eight examples.

LEUCOTHYREUS.

Leucothyreus , MacLeay, Horae Ent. i. p. 145 (1819) ; Burmeister, Handb. der Ent. iv. 1, p. 493

Lacordaire, Gen. Col. iii. p. 384.
Aulacodus, Eschscholtz, Entomographien, p. 76 (1823).
Bolaxoides, Castelnau, Hist. Nat. Ins. Col. ii. p. 140 (1840).

Similar in distribution to Bolax, but extending further southwards to the banks of
the Plata. One species has been recorded from Tahiti. The described species amount
to upwards of fifty.

1. Leucothyreus femoratus. (Tab. xvil. fig. 9.)

Leucothyreus femoratus, Burm. Handb, der Ent. iv. 1, p. 497 ^

Hab. Mexico, Jalapa {Edge) ; Costa Rica (Adams) ; Panama, Volcan de Chiriqui,
Caldera, Tole {Champion). — South America, Venezuela ^

The hind femora of the male are described by Burmeister as having at the base a
high projecting keel. In the numerous examples I have examined this is a broad
triangular tooth, slightly reflexed and margined. The size is 10 to 11 millim.

A Chiriqui specimen is figured. ^

296 . LAMELLICOENIA.

'■:::..::.' GENIATES.

Geniates, Kirby, Trans. Linn. Soc. xii. p. 401 (1818) ; Burmeister, Handb. der Eat. iv. 1, p. 506 ;
Lacordaire^ Gen. Col. iii. p. 386.

This genus is nearly confined to Southern Brazil, twenty-nine out of the thirty-two
species described being from that region. Of the other three one is from Monte
Video, one from Colombia, and the third from New South Wales. The locality of
this last rests on the same authority as that of Tahiti for a species of Leucothyreus, viz.,
Boheman, in the 'Voyage of the Eugenia.' The species are nearly all of large size
except the following, which is an inconspicuous form connecting the genus with
Leucothyreus, and smaller than the average of the Leucothyrei.

1. Geniates spinolse.

Geniates spinolae, Burm. Handb. der Ent. iv. 1, p. 508 \
Hob. Panama [coll. Bates). — South Ameeica, Colombia ^. .

Fam. DYNASTID-ffi.

Subfam. CYCLOCEPHALINjE.
ASPIDOLEA.

Corpus oblongum. Caput magnum ; elypeo maximo, transversim quadrate, antice haud angustato, angulis rotun-
datis, margine antico recto minime reflexo. Mandibulse quam clypeus multo breviores, tenuiter laminatae,
basi intus rotundatse, apice gradatim acuminatse, intus ciliatae. Maxillae lobo rotundato laminiformi,
apice longissimo et dense penicillatse, omnino inermes. Meutum breve transversum, late cordiforme, apice
late sinuata et ciliata, parte ligulari utrinque apud augulos distincta, dilatata. Pedes prsecipue tibiae
posticae graciles ; tarsi postici articulo primo extus apice pauUo producto. Caetera sicut in CyclocepTiala.

The species on which this genus is founded differs but little in facies from Cyclo-
ce'phalw of similar slender form and uniform coloration, but its many structural
peculiarities necessitate its removal from that group. The unarmed maxillse are
unarmed in a widely different manner from those of Ancognatha scarahceoides and its
immediate allies, where they remain elongate and robust, though destitute of teeth ; it
more nearly approaches the form existing in C. fuliginea, in which, however, the upper
inner angle of the shortened lobe is armed with two strong teeth. It is possible,
judging from the description, that C. peliopera and C. clypeata (Burm.) belong to
Aspidolea.

1. Aspidolea singularis. (Tab. XVII. fig. 11, c?.)

Gracilis, oblongo-ovata, fulvo-testacea, vertice nigro, subtus castaneo-fusca vel nigra, abdomine apice et pygidio
rufis, pedibus castaneo-fuscis vel rufis ; elypeo confluenter punctulato ; tborace punctate, angulis posticis
rotundatis; elytris subtiliter punctulato-alutaceis, sericeo-nitentibus, striisque geminatis et interspatiis
punctatis ; pygidio sparsim punctato, nitido, S postice valde convexo, 5 medio declive ; pectore uudo,
nitido. c? . Tarsi antici ungue majore profunde fisso, dente superiore sat robusto.

Long. 15-17 millim, J $ .

ASPIDOLEA.— ANCO&NATHA. 297

Eah. Guatemala, Volcan de Atitlan (Champion) ; Nicaeagua, Chontales (Belt, Janson);
TMmA, Volcan de Chiriqui 2500 to 4000 feet (Champion).

A Guatemalan specimen is figured.

ANCOGNATHA.

Ancognatha, Erichson in Wiegm. Archiv fiir Naturg. 1847, p. 97.

Cyclocephala, § 2 (Cyclocephales acuta), Burmeister, Handb. der Ent. v. p. 39 (1847) (partim).

This genus has been too hastily rejected by authors subsequent to Erichson. Its
structural differences from Cyclocephala are of much significance. The labrum is
detached and inclined from the roof of the mouth, instead of being hidden as in
Cyclocephala with at most a very short margin exposed under the clypeus, and its apex
in the typical species is toothed ; and the ligula is divided into two narrow lobes with
a narrow depression at its base extending far down the mentum.

These characters, though the form of the mentum was incomprehensibly misstated,
apply to Erichson's type, A. scarab woides, and to C. ustulata and C. humeralis of
Burmeister, but not to C. ocellata and C. maculata, which the latter author includes
in the same section. They apply also in all probability to A. lutea of Erichson, and to
A.jamesoni and A. crassimana of Murray, and without doubt also to C. manca of
Leconte. The acuminated clypeus and the narrow pointed mandibles bent upwards
from the edge of the clypeus are characters less distinctive of the genus, being shared
by species of the first section of Cyclocephala ; the clypeus is inconstant in shape, that
of the female of ^. quadripunctata being obtusely semiovate.

1. Ancognatha seqnata. (Tab. XVII. fig. 12, s .)

A. scarabceoidi proxime affinis ; supra complanata, piceo-nigra, nitida, corpore subtus, pygidio et femoribus fulvo-
testaceis, ventre segmentis l°-5™ medio infuscatis, pectore rufo-birto ; capita sparsim tborace multo subtilius
et sparsius punctulatis, clypeo apice minus acuto et parum reflexo ; elytris fere toto Isevibus, medio versus
basin tantum striato-punctulatis, stria suturali nulla. Pygidium setifero-punctulatum. c? . Tarsi antici
articulo unguiculari parum incrassato, ungueque majore elongato sat gracUi.

Long. 18 millim. cS .

ffab. Mexico, Ciudad in Durango (Forrer).
Two male examples.

2. Ancognatha laevigata.

A. scarabceoidi simiUima, paullo convexior, corpore toto cum pedibus nigris, antennis palpisque rufis ; elytris

parum conspicue striato-punctulatis ; pygidio polito, fere laevi, punctulis paucis setiferis.
Long. 17-19 millim.

Hab. Mexico (Salle, ex coll. Sturm), Tenancingo (Flohr).

Two examples. The clypeus curves on each side gradually to a point, but the point,
BIOL. CEHTE.-AMBE., Colcopt., Vol. II. Pt. 2, Octobcr 1888. 2 QQ

298 LAMELLICOENIA.

as in A. wQuata, is much less produced and reflexed than in A. scarahmoides. I have
adopted the MS. name given to the species by Sturm.

3. Ancognatha humeralis. (Tab. XVII. figg. 13, 6 ; 14, ? , var.)

Cyclocephala humeralis, Burm. Handb. der Ent. v. p. 40 \

Hah. Costarica (Van Patten); Panama, Volcan de Chiriqui 4000 to 6000 feet
(Champion, Trbtsch). — South Ameeica, Colombia i, Venezuela, Ecuador, Peru.

In specimens from southern localities the black spots of the elytra appear to be two
only in number, and small ; in those from Chiriqui the spots are often greatly developed
and increased in number, forming black streaks near the suture and sides and on the
disc ; in some examples the whole disc of the elytron is black. The hair-fringe beneath
joints 1-4 of the hinder tarsi is dense but not very long. The apical tooth of the labrum
is well-developed.

In the female the marginal callus of the elytra is extremely prominent, and forms a
projecting lobe.

We figure a male example from Costa Rica, and a female from the Volcan de
Chiriqui.

4. Ancognatha manca.

Cyclocephala manca, Leconte^ Proc. Ac. Phil. 1866, p. 383 ^ ; Horn, Trans. Am. Ent. Soc. 1871,
p. 335.

Hob. North Ameeica, Arizona i. — Mexico, Pinos Altos in Chihuahua {Buchan-
Hephurn).

A single male example, without tarsi.

5. Ancognatha quadripnnctata. (Tab. XVII. fig. 15, s .)

A. humerali simillima, sed diflfert thorace S latissimo, convexo, et elytris $ sine callo laterali. Plavo-testacea,
nitida, elytris callo Inimerali maculaque utrinque prope scutellum, femoribus tibiisque apicibus, nigris ;
capita et thorace sparsissime et subtiliter punctulatis, clypeo $ antice obtuse rotundato, fronte sub-
bituberculata ; elytris parum distincte striato-punctulatis. Pygidium S pilifero-punctatum, 2 fere Iseve.
Tarsi 4 posteriores d" articulis lo-4"' subtus longe et dense ciliatis.

Long. 20-26 miUim.

Hab. Mexico (Salle, ex coll. Sturm), Peras, Capulalpam (SallS), Mexico city (H'dge).

Five examples.

In the absence of a lateral callus to the elytra in the female the species resembles
A. ustulata ; but in the latter the margin on the site of the callus is a little expanded,
which is not the case in A. quadripunctata. I have adopted the name given to the
species by Sturm in the Salle collection and in his published catalogue.

CYCLOCEPHALA. 299

CYCLOCEPHALA.

Cyclocephala, Latreille^ Regne Anim. ed. 2, 2. iv. p. 552 (1839) ; Burmeister, Handb. der Ent. v.
p. 36 j Lacordaire, Gen. Col. iii. p. 398.

A genus peculiar to America *, and spread over the temperate and tropical zones
from north to south, including the islands of the West Indies, where it is numerously
represented. About one hundred species have been described.

Many species of this genus are constantly to be found in the spathes of Arums ; and
they are often to be met with in numbers deeply imbedded in the viscous pollen at the
bottom of the spathe, in company with elongate forms of Nitidulidse (Champion).

I. Clypeus elongatus, interdum lotus ml apice sinuatus ; ligula late divaricato-lohata

mentoque late emarginato.

1. Cyclocephala signata.

Melolontha signata, Drury, 111. Ins. i. p. 82, t. 36. fig. 6 ; ii. Append. Ind. (1773) \
Cyclocephala signata, Burm. Handb. der Ent. v. p. 43 ^.

Hah. Beitish Hondueas, Cayo {Blancaneaux) ; Nicaeagua, Chontales (Janson) ;
Pai^ama, Bugaba, Volcan de Chiriqui 2500 to 4000 feet, David (Charripion). — South
Ameeica, Colombia, Venezuela, Peru ; West Indies i ^.

The excellent description of Burmeister renders it easy to identify this species as
regards the male. The female may be distinguished from the same sex of the allied
species of similar shape and colour by the form and position of the elytral callus, it
being situated much behind the middle, and the margin near it is strongly sinuated and
depressed, the depression terminating behind with the projecting angular end of the lower
edge of the epipleural fold.

Found in enormous profusion by Mr. Champion, on the savannas near David, in

sappy rotten Agaves.

2. Cyclocephala collaris (?).

Cyclocephala collaris, Burm. Handb. der Ent. v. p. 47 ' (?).

Hab. Beitish Hondueas, Cayo {Blancaneaux); Guatemala, Panzos {Champion). —
South Ameeica i, Ecuador ( Whymper, in coll. Bates).

I refer this species doubtfully to C. collaris, Burm., as he does not fully describe the
callus and elytral dilatation of the female, which, so far as this sex is concerned, is the

* A species has been described by Montrouzier from Woodlark Island in the Western Pacific, but this author
is so notoriously inaccurate in his generic determinations that we may fairly assume an error has been made
in this instance.

2QQ2

300 LAMELLICOENIA.

only definite character which separates the species from C. signata. The three examples
before me are females, which renders more difficult the determination of the species ;
the one from Ecuador, however, exactly agrees in colour with Burmeister's description.
The elytral callus is on the dilated margin, and near to the outer apex; close to it the
surface is depressed, and anterior to it the margin is thickened.

3. Cyclocephala detecta. (Tab. xvil. fig. 16, s .)

C. sticticce similis, sed differt clypeo (lato subquadrato) antice cum angulis rotundato, supra creberrime subtiliter
punctulato margine antice reflexo, f route et vertice pauUo sparsius puuctulatis, illo utrinque punotis
setiferis majoribus. Elongata (thorace ample rotundato), flavo-testacea, polita ; vertice, thorace vittis duabus
elytrisque utrinque macuKs duabus vel tribus (2 vel 1 anticis, 1 postica, macula anteriore interiore valde
obliqua), abdomine cum pygidio nigro-fuscis ; tborace disco sparsissime punctulato, lateribus (prsecipue
versus angulos anticos) grosse sed sparsim setifero-punctatis ', elytris subtiliter punctulatis punctis majori-
bus sparsis setiferis, striisque geminatis juxta costas. Pygidium convexum, longe fulvo-setosum.

Long. 16 millim. S .

Eah. Mexico, Orizaba, Chiapas {Salle) ; Nicakagua {ex coll. Cutter).

Two Mexican specimens in the Salle collection are labelled C. stictica, Burm., from
the other male examples of which in the same collection they differ in the broader,
obtusely-square form of the clypeus, and in the absence of apical sinuation, and the
fine and close sculpture, which renders the surface of the clypeus opaque. In these
respects the species comes nearer to the South-Brazilian C. variabilis, Burm., from
which in fact C. detecta difi'ers only in the more broadly rounded thorax, the broader
clypeus, and the more distinctly black-edged elytral suture. From C. signata it differs
in the more ample clypeus and fine scattered punctuation of the disc of the thorax,
besides being a larger insect. The male is further distinguished from the corresponding
sex of both C. variabilis and C. signata by the third and fourth joints of the anterior
tarsi being smooth, and not finely strigose.

We figure an individual from Chiapas.

4. Cyclocephala stictica. (Tab. XVII. fig. 17, d .)

Cyclocephala stictica, Burm. Handb. der Ent. v. p. 66 \
Hab. Mexico ^, Orizaba, San Andres Tuxtla {Salle), Cordova, Misantla {Edge).

A good series of examples. Burmeister placed this species in a section far apart
from that to which he referred C. signata and its allies, on account of its sinuated
clypeus. This single character, which in some examples is only very slightly developed,
ought not, I think, to outweigh the other numerous signs of close affinity. The lateral
callus of the female is large and wholly superficial, leaving the elytral margin con-
tinuous and normal. The major claw in the male fore tarsi is entire.

A Misantla specimen is figured.

CYCLOCEPHALA. 301

6. Cyclocephala microspila. (Tab. xvil. fig. 18, c? .)

C stidiicce Talde affinis ; minor, flavo-testacea, vertice elytris utrinque maculis duabus (interdum tribus) parvis
nigris, thorace immaculato vel maculis 2 ant 4 vagis ; clypeo subtiliter undulafco-striguloso et punetulato,
apice latius et distinctius sinuato, f ronte disperse aeqnaliter punctata ; thorace rotundato-quadrato, lateribus
minus arcuatis, subtiliter disperse, versus latera parum grossius, punctato ; elytris subtiliter punctulatis,
brevitersparsimsetosis. Pygidium c? valde convexum, punctatum et breviter setosum ; 5 longitndinaliter
subcarinatum, convexum, fere laeve. Tarsi ungue majore integro. 2 . Elytra mox pone medium alte callosa
et margine verticaliter arcuato, post caUum depressa.

Long. 14-16 millim.

llab. Pajstama, Bugaba, David (Champion).

The hind tarsi, as in the foregoing species, are very long, and in both sexes finely
ciliated beneath. When there are only two ely tral spots present (the most frequent case)
it is the inner of the anterior pair that is deficient ; sometimes the spots are very minute.

6. Cyclocephala fasciolata. (Tab. xvii. fig. 19, 6 .)

Oblonga, subconvexa, nigra, nitida, elytris (interdum partim opacis) macula irregular! transversa discoidali rufa
vel toto nigris ; capite disperse umbilicato-punctulato, clypeo sat elongato subquadrato antice rotundato ;
thorace sicut in O. fuliginea, sat elongato lateribus rotundatis (angulis posticis valde obtusis, anticis pro-
longatis acutis), sed differt basi integriter marginato et dorso distincte disperse punctato ; elytris vage
striato-punctatis, stria suturali baud impressa interstitioque suturali usque ad apicem lato IsDvique. Subtus
cum pedibus rufo-birta. Mandibulce apice truncatse, extus breviter dentatse et intus bifldse. Presternum
ante coxas valde convexum, rufo-birtum.

c? . Tibiae anticse bidentataB ; pygidium rufo-birtum. Tarsi postici quam tibiae multo longiores, articulis l*>-4m
subtus rufo-cOiatis.

5 . Tibiee anticse tridentat^. Pygidium fere glabrum, politum. Elytra margine laterali fortiter callosa.

Long. 20-23 millim.

Hah. Mexico, Toxpam, Cordova {Salle), Jalapa [Eoge) ; Panama, Volcan de Chiriqui
4000 to 6000 feet (Cham^pion, Trofsch).

An example from Toxpam is figured.

7. Cyclocephala fuliginea. (Tab. XVII. fig. 20, 6 .)

Cyclocephala fuliginea, Burm. Handb. der Ent. v. p. 42 \

Hah. Mexico (Salle) ; Guatemala, Capetillo (Champion).— ^om^ America, Venezuela,
Brazil i.

Differs from the other species of the section in the maxillary lobe being short and
subquadrate in form, and armed on its inner apex with two teeth, and in the narrower
and more divergent lobes of the ligula.

A Mexican specimen is figured. -

II. Clypeus elongatus, semiovatus ; ligula medio anguste incisa menfogue apice integro.

8. Cyclocephala complanata. (Tab. XVII. fig. 21, c? .)

Cyclocephala complanata, Burm. Handb. der Ent. v. p. 48'.

302 LAMELLICOENIA.

Hah. Mexico \ San Andres Tuxtla (Salle), Jalapa (Edge) ; Bkitish Hondueas, E^
Sarstoon (Blancaneaux) ; Guatemala, Capetillo, Zapote (Champion) ; Nicaeagua,.
Chontales (Belt).

Mexican specimens have the elytra pale testaceous, with the suture and a very long,
oblique, dorsal vitta on each elytron castaneous, or they are spotless ; in those from
Guatemala the dark castaneous pigment prevails, and the broadened oblique vitta some-
times coalesces with an equally widened sutural border, the outer margin also being
castaneous. In the darker examples the thorax is red. The hind margin of the
thorax has a continuous, deeply impressed groove. The marginal callus of the elytra
in the female is obsolete, or exists only as a slightly raised spot distant from the margin,
which latter is thickened (but straight) for a short distance.

An example from Jalapa is figured.

9. Cyclocephala sanguinicollis.

Ci/clocephala sanguinicollis, ^wcm. Handh. der ^nt, r. -p. 4<9^.
Hah. Mexico ^, Toxpam, Santecomapan (Salle).

In form, colour, and sculpture, this species closely resembles C. gravis, which belongs
to the section with sinuated clypeus. The female elytral dilatation differs, however,
much from that of C. gravis, being much behind the middle, and accompanied by a
small, narrow callus.

10. Cyclocephala mutata.

Cyclocephala mutata, Gemm. & Harold^ Cat. Col. iv. p. 1243.

Cyclocephala frontalis, Burm. Handb. der Ent. v. p. 50 ^ (1847) (nee Chevrolat in Icon. Eegne Anim.
p. 90 (1830) ; Ann. See. Ent. Fr. 1865, p. 30).

Hah. Mexico, Cordova (Edge), Playa Vicente, Campeche (SallS), North Yucatan
(Gaumer), Yucatan^; Costa Eica (Salle, Van Patten), Volcan de Irazu 6000 to
7000 feet (Bogers) ; Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Among the numerous unicolorous testaceous species with black crown, this is
distinguished by its semi-ovate clypeus, variable in size, but smaller and relatively
narrower than in C. signata, with the front edge sometimes almost obtusely truncated,
but reflexed and without trace of emargination. The thorax is relatively much smaller
than in C. signata, but the sides and hind angles are similarly rounded. The upper-
side is light yellowish, the underside generally more rufous. The male has long hind
tarsi with long claws ; the female is distinguished from the same sex of the allied species
by the lateral margin of the elytra a little behind the middle being dilated, forming a
lobular projection, near which the surface has a slight callosity. This is probably what
Burmeister means by his phrase " Das weibchen zeigt de schmale randschwiele recht
deutlich."

CYCLOCEPHALA. 303

The specific name adopted by Burmeister was preoccupied by Chevrolat for an
evidently very distinct Cuban species, the sole example of which, as Chevrolat records,
was destroyed.

11. Cyclocephala sororia. (Tab. XVII. fig. 22, s .)

Cyclocephala cerea, Burm. Handb. der Ent. v. p. 51 ?

G. mutatce proxime affinis, differt tantum corpore magis ovato, tarsis posticis S cum unguibus pauUo breviori-

bns, et prseeipue $ elytris nee callosis nee margine dilatatis.
Long. 17-20 miUim. c? ? •

ffah. Mexico, Yolos (Salle) ; Beitish Honduras, R. Sarstoon {Blancaneaux) ; Guate-
mala, Zapote, Capetillo {Champion) ; Costa Eica {Salle, Van Patten).

The females of this species are readily distinguishable from those of the preceding
by the lateral margin of the elytra being simple, like that of the male, except for the
rather more thickened edge ; there is no trace of the shght lobular projection or surface-
callus. The males show no constant difference : all that can be said is that their
general form is more ovate, and the hind tarsi, with their claws, when very attentively
compared appear to be a little shorter. The colour is the same, but a good proportion of
examples, especially from Guatemala, are very dull castaneous on the underside. The
punctuation of the whole upper surface varies in both species, but it is nearly always
very fine, and the sides of the forehead and thorax show no trace of the larger punctures
which are so conspicuous in C. signata and its immediate allies. The pygidium in both
species is glabrous and nearly smooth ; but in C. sororia it is generally more highly
polished and freer from punctuation than in C. mutata.

The species must be closely allied to the Jamaican C. cerea, Burm., but the descrip-
tion of the latter equally well applies to C. eplstomalis.

A Costa Rican specimen is figured.

12. Cyclocepliala epistomalis.

O. mutatce et G. sororice simiUima, sad differt clypei margine antico elevato et incrassato epistomateque deelive
vel fere horizontali. Elongato-ovata, convexa, fulvo-testaeea, subtns cum pygidio piceo-nigra, nitida,
capite nigro, femoribus rufo-testaeeis ; thorace sparsim subtiliter punctulato, angulis posticis mediocriter
rotundatis ; 'elytris sat dense punctulatis, striis geminatis flexuosis punctulatis utrinque duabus ; pectore
fulvo-piloso ; pygidio polito, subtiUter pHifero-punctulato, $ leviter longitudinaUter convexo ; prosterni
processu postcoxali alto.

Long. 20 millim. $ .

Hah. Guatemala {SalU), Capetillo (Champion).

Two examples only, both females. In one the raised anterior margin of the clypeus
is slightly sinuated, in the other it is rounded ; the outline of the clypeus is semiovate
only by including the anterior margin of the epistome. The affinities of C. epistomalis
are with C. mutata of the present group, and not with C. mafaffa of the sinuated-clypeus
group. The peculiarity in the form of the clypeus lies in the broad and very oblique posi-

304 LAMELLICOENIA.

tion of the front edge, which in all other species is vertical. The mandibles are normal,
^. e. forming moderately narrow blades, with truncated apex and sinuated outer edge.

III. Clypeus ;parms ; mentum apice rotundatum vel rectum, integrum.
A, Antennce clava in 6 valde elongata.

13. Cyclocephala immaculata.

Melolontha immaculata, Oliv. Ent. i. 5, p. 29, t. 8. fig. 95 \

Cyclocephala immaculata, Burm. Handb. der Ent. v. p. 53 ' ; Horn, Trans. Am. Ent. Soc. 1871,

p. 336 ^
Oyclocephala lurida. Bland, Proc. Ent. Soc. Phil. 1863, p. 354 *.

Hob. NoKTH America ^ ^ ^. — Mexico ^, Northern Sonora {Morrison), Villa Lerdo in
Durango. (Hbge), Cordova {Salle). — West Indies, Guadaloupe i.

14. Cyclocephala coahuilse. (Tab. xvil. %. 23, s .)

C. immaculatce affinis et simillima ; differt elytris $ medio margine lateral! rotundato-dilatato et incrassato^
Plavo-testacea, vertice nigro, supra glabra ; clypeo sicut in 0. immaculata parvo, obtuse triangulari, rugu-
loBO-punctato palpisque maxiUaribus articulo ultimo cylindrico vix perspicue foveato ; tborace sparsissime
punctate, spatio dorsali Isevi ; elytris striato-punctatis ; pygidio S longe erecte piloso. Prostemum ante
coxas obtuse carinatum, processu postcoxali alto apice lato obtuso. <S • Antennae clava caeteris articuli&
longiore. 5 . Antennae clava elongata, caeteris articulis pauUo breviore.

Long. 12-16 millim. d" $ .

Hah. Mexico, Saltillo and Parras in Coahuila {JDr. Palmer).

Almost the only difference between this species and C. immaculata rests, as in
C. sororia and C. frontalis, on a secondary sexual character, which must be of some
systematic as it is of physiological importance. In the numerous female examples of
C. immaculata examined from various localities the lateral margin of the elytra near
the middle shows no trace of dilatation or thickening.

Five examples (three males, two females).

15. Cyclocephala castanieUa. (Tab. XVII. fig. 24, ^ .)

C. immaculatce affinis ; oblonga, supra glabra, castaneo-fusca, clypeo, partibus oris, antennis et pedibus fulvo-
castaneis ; clypeo parvo, semi-ovato, raguloso-punctato ; tborace sparse, versus angulos posticos crebrius et
grossius, punctato, antice gradatim angustato, angulis posticis rotundatis ; elytris utrinque striis tribus
grosse punctatis geminatis flexuosis, interstitiis punctatis, limbo posteriore minute punctulato ; prosterno
antice sat anguste carinato, processu postcoxali alto, c? • Pygidium glabrum, margine fimbriato-punctu-
lato ; antennarum clava caeteris articulis conjunctis longiore ; tarsi antici ungue majore apice fisso.
$ . Elytra pone medium gradatim dilatato-explanata ibique margine incrassato ; pygidium glabrum,
politum ; antennarum clava sat elongata.

Long. 12-15 miUim. c? 2 •

Hab. Costa Eica, Volcan de Irazu 6000 to 7000 feet {Bogers).

A large number of examples ; without colour variation, except that the elytra in the
females are sometimes dark brown with the sides, or vaguely-defined spots, reddish-
castaneous.

CTCLOCEPHALA. 305

16. Cyclocephala curta. (Tab. xvii. %. 25, d.)

Breviter oblongo-ovata, flavo-testacea, glabra, vertice vix infuscato, elytris utrinque maculis vagis (baud vittis)
castaneis (2 anterioribus, 1 posteriore, interdum minutis vel deficientibus) ; clypeo sicut in 0. imma-
culata ; thorace transverse, lateribus regulariter rotundatis, grosse sparsim punctate ; elytris utrinque
costulis 8 sat elevatis et striis punctatis delimitatis, interstitiis grosse ruguloso-punctatis. Pygidium
glabrum et impunctatum. Ungues conspicue elongati. c? • Tarsi antici ungue majore acuminate integro ;
antennarum clava elongata, cseteris articulis conjunctis fere sequali. § . Elytra apud medium leviter
gradatim explanato-dilatata ibique margine mediocriter angustato.

Long. 11 millim. d 2 -

Sah. Mexico, Tuxtla, Catemaco, Tehuantepec {Salle). Four examples.

Bears the name C. curta, DeyroUe, MS., in the Salle collection. A Catemaco
specimen is figured.

B. Antennae clava in utroque sexu parva.
a. Clypeus hreviter semiovatus.

17. Cyclocephala lunulata.

Cyclocephala lunulata, Burm. Handb. der Ent. v. p. 62 \

Hab. Mexico, Presidio, Ventanas {Forrer), Monclova in Coahuila (Dr. Palmer),
Orizaba, Cordova, Tuxtla, Playa Vicente, Chiapas, Campeche (Salle), Jalapa, Misan a
(Hoge), 'North YncsitSiTi (Gaumer) ; Beitish Honduras, Cayo (Blancaneaux) ; Guate-
mala, Chacoj, Capetillo (Champion)-, Nicaragua, Chontales (5e?i^, Janson); Costa Rica,
Volcan de Irazu 6000 to 7000 feet, Cache (JRogers) ; Panama, Bugaba (Champion). —
South America to South Brazil i.

Female examples agree exactly with others of the same sex, with which I have
compared them, from the Amazons and South Brazil. The lateral margin of the
elytra in the female is sinuated below the middle, followed by a dilatation, which
gradually subsides behind, and there is an elongate narrow callus, sometimes only
slightly indicated, near the margin. The characteristic postero-discoidal circumflex
mark of the elytra is sometimes absent, and the elytra wholly testaceous.

18. Cyclocephala fulgurata.

Cyclocephala fulgurata, Burm. Handb. der Ent. v. p. 63 \

Eah. Mexico, Playa Vicente (Salle).— %om^ America, Colombia i, Amazons.

Closely allied to the preceding, but distinguished generally by the zigzag posterior
fascia of the elytra. The very different position of the lateral dilatation of the elytra
in the female is a still more definite specific character ; this is situated far behind,
towards the apical curve, and is short and angular, with a smooth callus on the surface,

19. Cyclocephala comata. (Tab. XVIII. fig. 1, c? .)

C. lunulatce proxime affinis et similis, sed pauUo oblongior, longe fulvo-pilosa et capite toto flavo. Oblongo-

BiOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 2, Octobcr 1888. 2 RR

306 LAMELLICOENIA.

ovata, corpore pedibusque longe fulvo-pilosis, flavo-testacea, thorace vitta abbreviata dorsali signaturaque

X~^ormi utrinque discoidali, elytrisque sicut in C. lunulata utrinque litera angulata versus basin alteraque

postica V-formi, interdum conjunctis vel fere obliteratis, castaneis ; clypeo parvo, semi-ovato, margine

antico valde reflexo ruguloso-piinetato ; thorace discrete punctato, angulis posticis rotundatis ; elytris sub-

tilius punctatis, striis geminatis parum perspicuis ; pygidium convexum, crebre punetulatum et longissime

erecte pilosum. Corpus subtus cum pedibus pilosum.

{J . Tarsi antici ungue majore valde elongato apice fisso, dente superiore tenuissimo. Palpi maxillares valde

elongati. Mandibulse sat angustae extus valde sinuatse, apice ultra clypeum porrecto supra et extus

recurvato.

Long. 17 millim. d" • ' ■

I,

Hah. Mexico {Salle, ex coll. Sturm), Peras {Salle).

■Iff-.

Three examples only, all males. Bears the MS. name C. ochreata, Sturm.

20. Cyclocephala ?

Sab. Mexico, Playa Vicente {Salle).

A single example apparently distinct, but imperfect and discoloured.

b. Clypeus ajpice recte truncatus, rejleccus, angulis distinctis.

21. Cyclocephala dimidiata.

Cyclocephala melanocephala, var. (?) dimidiata, Burm. Handb. der Ent. v. p. 57 \
Cyclocephala elegans, Horn_, Trans. Am. Ent, Soc. 1871, p. 337, t. 3. fig. 34 ^
Cyclocephala dimidiata, Horn, loc. cit. 1875, p. 143.

Hab. NoETH Ameeica, Lower California ^. — Mexico i, Toxpam, Cordova, Chiapas
{Salle), Villa Lerdo in Durango, Coatepec, Acapulco, Jalapa {Hoge) ; Guatemala,
Aceytuno 5100 feet {Salvin), Capetillo, Pantaleon {Champion) ; Nicakaqua, Chontales
{Belt, Janson); Costa Eica {Van Patten), Volcan de Irazu {Rogers) ; Panama, Chiriqui
{Bibbe), Bugaba, San Miguel in the Pearl Islands {Champion).

22. Cyclocephala guttata. (Tab. xviii. fig. 2, $ .)

Elongato-ovata, subcylindrica, subtus rufo-testacea vel partim nigro-castanea, supra flavo-testacea, vertice nigro,
thoraceque guttis rotundis 4 transversim seriatis, scutello castaneo; clypeo parvo, subtrapezoidali vel
semiovato, antice truncate, margine antico reflexo, antice Isevi postice cum fronte punctato ; thorace sat
grosse discrete punctato, angulis posticis rotundatis ; elytris sat grosse striato-punctatis, interspatiis sub-
ruguloso-punctatis ; pygidium glabrum, ruguloso-punctatum, pauUo convexum. Elytra $ margine lateral!
simplici.

Long. 9-11 millim. 5.

Hab. Mexico, Playa Vicente {Salle) ; Guatemala, Yzabal {Salle).
Three examples only, all females.

23. Cyclocephala ovulum. (Tab. XVIII. fig. 3, s .)

G. minutce (Burm.) similis, brevis sat regulariter ovata, flavo-testacea (subtus rufiore), vertice nigro, pygidio
( d $ ) dense punctulato-ruguloso sive alutaceo opaco ; clypeo parvo, trapezoidali, margine antico reflexo ;

CYCLOCEPHALA. . 307

thorace sparsim punctato, angulis posticis mediocriter rotundatis; elytris grosse baud dense striato-
punctatis, margine lateral! (6 2) ^^^^ medium sinuato et post hoc patiUo dilatato, limbo laterali
impunctato ; tibiis anticis dentibus tribus validis, nigris ; pygidio ( c? $ ) parum convexo. 6 ■ Tarsi antici
ungue majore valde elongato, apice anguste fisso. $ . Elytra prope dilatationem caUosa margineque
paiillo incrassato.
Long. 9-11 miUim. 6 2 •

Eah. Guatemala, San Geronimo {Champion); Nicaeagua, Chontales (Janson);
Panama, David (Champion). — South Ameeica, E. Amazons.

A large number of examples. In colour, and especially in the sculpture of the
pygidium, agrees with Burmeister's description of C. testacea ; but Burmeister places
C. testacea in his subsection "body elongate cylindrical," whereas our species is quite
remarkably short and rotundate-ovate. His description of the claw-joint of the
anterior male tarsi, " massige verdickt," is also inapplicable, as our species has the
claw-joint very unusually large and thickened, with the larger claw of extraordinary
length and stoutness. The closely allied C. minuta (found also on the Amazons) is a
smaller insect, 7 millim., and has a coarsely punctured shining pygidium. A Chontales
specimen is figured.

IV. Clypeus latus, antice sinuatus ; meiitum ante ;pal]pos angustum, suirotwidatum,

antice medio plerumque anguste incisum.

24. Cyclocephala lucida. (Tab. xviii. fig. 4, c? .)

Cyclocephala lucida, Burm. Handb. der Ent. v. p. Q7^.

Hah. Mexico i, Orizaba, Santecomapan {Salle), Cordova, Jalapa (Soge) ; Guatemala,
Zapote {Champion) ; Nicaeagua {Salle), Chontales {Belt, Janson) ; Panama, David
{Champion).

Distinguished by the elytra having together eight black spots arranged in a circle, of
which the two nearest the scutellum are the largest. The black spots on the thorax
are more variable in form and number, and in many examples disappear without
corresponding diminution of the elytral spots. The largest examples and those with the
largest black spots occur in Mexico. In specimens from Guatemala and further south
the spots are generally smaller and the general form of the insect more slender and paler
in colour, but large-spotted examples, though rarer, occur in Guatemala, as small-spotted
ones do in Mexico. The female is distinguished by the lateral margin being abruptly
produced into a small lobe a little behind the middle, the surface of the elytron
between the lobe and the slightly elevated callus being depressed. Found commonly
by Mr. Champion in the spathes of large Arums at Zapote. A specimen from Orizaba
is figured.

25. Cyclocephala amblyopsis. (Tab. xvill. fig. 5, c? .)

G. lucidce proximo affinis, sed minor et angustior, flavo-testacea, nitida, vertice eum fronte thoracis maculis
duabus elytrorumque macula utrinque prope scutellum (rarissime macula parva discoidali versus apicem)

2RR2

308 LAMELLICOENIA.

nigris ; variat elytris vel elytris et thorace immaculatis ; clypeo quam in C. lucida apice latiore et minus
' sinuato, interdum obtuse truncate, cum fronte sparse punctate ; thorace subtilius punctate elytrisque
subtiliter sat sparsim prsecipue lineatim punctulatis. c? . Tarsi antici ungue majore apice late fisso ;
pygidium versus apicem convexum, sparse punctulatum, apice ciliatum; antennae breves, clava parva.
2 ' Pygidium longitudinaliter baud convexum, punctulatum. Elytra post medium callo ovato margineque
vicino anguste lobato-producto.
Long. 16-19 miUim. c? ? •

Hab. Nicaragua, Chontales (Belt); Costa Rica {Van Patten), Cache (Bogers);
Panama, Bugaba, Volcan de Chiriqui 2000 to 3000 feet (Champion).
Yar. C. monocJiroa : vertice nigro excepte, tote flavo- vel rufescenti-testacea ; csetera ut in C. amhlyopsis.

Hab. Guatemala, Zapote {Champion) ; Nicaragua ; Costa Eica.

A large number of examples of both type-form and variety ; the latter requires a
distinct name on account of the peculiarity of its distribution, all the numerous
examples from Zapote belonging to it, whilst further south the spotted type-form
prevails mingled with very few individuals of C. monochroa. An example from
Chontales is shown on our Plate.

26. Cyclocephala gravis.

C. lucidce affinis ; minor, rufo-castanea, polita, vertice nigro elytrisque flavo-testaceis ; clypeo fere sicut in 0.
lucida, sed apice magis sinuato, arcuato-punctato ; sutura frontali acute impressa, flexuosa ; thorace
censpicue punctate ; elytris sat dense punctulatis et seriebus punctulorum utrinque geminatis quatuor,
sutura rufescenti. c? . Pygidium valde convexum, punctulatum, disco posteriere laeviere ; tarsi antici
ungue majore fisso ; antennae cum clava breves. $ . Pygidium fere sicut in c? convexum ; elytra a S
parum diversa, baud callosa, apud medium gradatim leviter dilatata ibique margine paullulum incrassato,
post dilatationem angustata.

Long. 17-18 millim. c? $ •

Hab. Mexico, Cordova {Salle), Jalapa {Hoge) ; Guatemala, Cohan {Champion) ;
Nicaragua, Chontales {Belt, Janson) ; Panama, Bugaba {Champion). — South America,
Venezuela.

A large number of specimens offering scarcely any variation. I have adopted the
MS. name C. gravis which the species bears in the Salle collection. Venezuelan
examples were sent to me some years ago from Paris under the name C. concolor,
Burm. : this is a very different and much larger species belonging to the group in
which the clypeas is elongate, semiovate, and entire.

27. Cyclocephala mafaffa. (Tab. XVIII. fig. 6, <? .)

Cyclocephala mafaffa, Eurm. Handb. der Ent. v. p. 69 \

Hab. Mexico ^, Orizaba, Cordova, Etla (Salle), Jalapa (Hoge) ; Guatemala (Salle),
Zapote, Las Mercedes (Champion) ; Nicaragua, Chontales (Belt, Janson) ; Costa Eica
(Bogers).

, A Mexican specimen is figured*

CYCLOCEPHALA. 309

28. Cyclocephala picta. (Tab. xviii. fig. 7, c? .)

Cyclocephala picta, Burm. Handb. der Ent. v. p. 68 \
Hah. Mexico i, Orizaba {Salle).

29. Cyclocephala conspicua. (Tab. XVIII. fig. 8, c^ .)

Cyclocephala conspicua, Sharp, Journ. Linn. Soc, Zool. xiii. p. 135 ^.
Hob. Nicaragua, Chontales (Belt i, Janson).

30. Cyclocephala atripes. (Tab. xvill. fig. 9, 6 .)

Brevius oblongo-ovata, fulvo-testacea, capite toto, eljtrorum margine angusto basali et lateral! (prope bumeros),
pectore lateribus pedibusque toto, nigris, palpis antennisque piceo-rufls ; clypeo transversim quadrato,
apice late sinuato ; thorace brevi et lato, disperse punctato ; elytris utrinque striis punctatis geminatis
tribus, interspatiis minutius et crebrius punctulatis, versus basin et suturam puuctis majoribus inter-
mixtis. (S . Pygidium mediocriter convexum, setifero-punctatum.

Long. 17 millim. S •

Kab. Nicaragua, Chontales {Janson).
Two males only.

31. Cyclocephala ligyrina. (Tab. XVIII. fig. 10, s .)

G. variohsce (Burm.) affinis, sed robustior tboraceque basi baud marginato. Oblonga, convexa, postice pauUo
ampliata, piceo-rufa vel nigra unicolor ; capite cum clypeo pauUo convexo, sparse punctulato, clypeo antice
paullo angustato, angulis rotundatis, margine apicali sinuato ; tborace sparse punctato, lateribus leviter
usque ad angulos obtusissimos posticos rotundatis; elytris utrinque striis punctatis geminatis tribus,
interspatiis et limbo lato laterali confuse punctatis, punctulis minutis intermixtis, punctis majoribus
circularibus et umbilicatis ; pygidio sat regulariter subdense punctato. Mandibulse fere sicut in G.
mafaffa, sed extus minus sinuatse ; ligula angusta, subconcava, margine antico rotundato et leviter inciso ;
tibiae anticas dentibus 3 robustis prope apicem approximatis. J • Tarsi antici articulo unguiculari cum
ungue majore valde incrassato, boc apice fisso ; tarsi postiei nee elongati nee subtus ciliati ; pygidium
parum convexum. 5 . Pygidium longitudinaliter baud convexum ; elytra margine laterali a basi usque
longe ultra medium gradatim dilatato et incrassato, subito terminate, striaque marginali profunda.

Long. 25-26 millim. S 2-

Hah. Nicaragua, Chontales {Belt) ; Panama, Chiriqui {Trotsch).

Three examples. This species very closely resembles the South-Brazilian C. variolosa,
the female of which has a similarly thickened and to beyond the middle gradually
widened lateral margin ; but the latter is strikingly distinguished by the uninterrupted
basal margin of the thorax, a most unusual character in the genus Ci/cloce^hala.

32. Cyclocephala proba. (Tab. XVIII. fig. 11, $

Cyclocephala proba, Sharp, Journ. Linn. Soc, Zool. xiii. p. 135 \
Hah. Nicaragua, Chontales {Belt ^).

Similar in colour and sculpture to the preceding, but a relatively shorter insect, and
differing in the broader and more quadrate form of the clypeus. It is a more aberrant

310 LAMELLICOENIA.

species, the sides of the thorax being sinuated behind to the distinct though obtuse
hind angles, and the mandibles differing from those of C. mafaffa and allies in being
gradually narrowed to the apex. The sides of the elytra in the female are simple, as in
the males of the genus.

33. Cyclocephala melane.

Oblonga, mediocriter convexa, nigra, nitida, aiitennis palpisque rufo-piceis ; clypeo sat elongate trapezoidali,
angulis anticis rotundatis, margine antico sinuato, hand dense ruguloso, fronte grosse punctata spatiis
' laevibus ; thorace sparsissime punctulato, antice et lateribus punctis nonnuUis grossis setiferis, basi acute

marginato angulisque posticis distinctis sed obtusis, lateribus versus angulos posticos parum rotundatis;
elytris sat grosse et regulariter punctato-striatis, versus latera et apicem lineatim setifero-punctatis ;
pygidio ( c? ) convexo, punctato et longe rufo-piloso. Prosterni processus postcoxaKs tuberculo supra magno
rotundato. Mandibulee quam clypeus baud breviores, apice extus hamatfe. Mentum sicut in G. mafaffa,
antice angustato ligula apice rotundata. Antennae lO-articulatae. Tibiae anticae dentibus approximatis
apicalibus duobus ; tarsi antici ( c? ) ungue majore fisso.
Long. 22 miUim. S •

Hah. Costa Eica (coll. Bates).

One male example. Allied to C. variolosa, Burm., with which it agrees in the
margined base of the thorax ; but it is more parallel-sided and of a deeper black
colour, and the clypeus is longer. It deceptively resembles at first sight C. nigerrima,
from which it differs so greatly in the length of the mandibles and in the form of the
ligular part of the mentum.

V. Clypeus antice sinuatus vel triflexuosus ; mentum a'pice
latissimum, recte truncatwn.

34. Cyclocephala nigerrima. (Tab. xvili. fig. 12, s .)

Elongata, oblongo-ovata, nigerrima, polita, pectore, pedibus abdominisque lateribus baud dense vulpino-pilosis ;
clypeo magno subquadrato, antice leviter angustato, angulis distinctis, margine antico mediocriter reflexo,
subsinuato, cum vertice sparsim punctulato ; tborace subtilissime et sparsissime punctulato, angulis
postieis distinctis sed obtusissimis, basi emarginato ; elytris plerumque fere laevibus politis, interdum
punctulatis et geminato-striatis. S • Pygidium convexo, sat fortiter discrete setifero-punctato ; tibiae
anticae tridentatae, dente superiore parvo et subremoto ; tarsi antici ungue majore profunde fisso. 5 .
: Pygidium recte declive punetatum, glabrum ; tibiae anticas acute tridentatae ; elytra medio gradatim leviter

dilatata ibique margine incrassato. Mandibulae quam clypeus multo breviores, apice obtuse acuminatae.
Ligula lata, subconcava, apice fere recta.

Long. 22-25 millim. cj $ . .

Hah. Costa Eica {Van Patten), Volcan de Irazu 6000 to 7000 feet, E. Sucio
i (Bogers).

A large number of examples. Closely allied to the following, C. ampliata, notwith-
standing the different outline of the clypeus. Although coming within the definition
of Burmeister's section " Cyclocephalse sinuatse " the sinuation of the clypeus is
different from that of C. mafaffa and its allies, being a gradual incurvation from angle

CYCLOOEPHALA.— DTSCINETFS. 311

to angle with the angles well-marked, instead of being a curved sinus in the middle with
the angles rounded. The mandibles are remarkably small and much shorter than the
clypeus ; on dissection they are found to be closely applied to the roof of the mouth.

35. Cyclocephala ampliata.

Eobusta, prsecipue elytris late quadrato-ovatis, castaneo-rufa, polita, elytris (sutura excepta) fulvis; elypeo
magno sub quadrate, antiee perparum angustato, angulis anticis acutis margineque antico acute reflexo
valde flexuoso ; thorace quam elytra multo angustiore, rotundato convexo, angulis posticis distinctis sed
obtusissimis, basi marginato, toto sparsim punctulato ; elytris subtilissime sparsim punctulatis et
geminato-striatis ; pygidio couvexo, sat dense setifero-punctato. c? . Tibiae anticse apice acute bidentatae,
denteque tertio subobsoleto supra remote ; tarsi antici ungue majore flsso ; mandibulse quam clypeus
multo breviores, acuminatse, baud recurvse. Ligula late concava, antiee leviter rotundata, Integra.
Antennse lO-articulatse.

Long. 23 millim. c? .

Hah. NiCAEAGUA, Chontales {Belt).

Species incertm sedis.

Two damaged male examples.

36. Cyclocephala ?

Rab. NiCAEAGUA (Salle).
A single female example.

DYSCINETUS.

Dyscinetus, Harold^ Col. Hefte, v. p. 123 (1869).

Chalepus, MacLeay^ Horse Ent. i. p. 149 (1819) ; Burmeister, Handb. der Ent. v. p. 75 ; Lacor-
daire^ Gen. Col. iii. p. 403 (partim) (nom. prseocc.^ Thunberg^ 1805).

Upwards of twenty species of this exclusively American genus have been recorded.
Although chiefly tropical a few are found in the warmer temperate zone both north
and south.

Some of the species greatly resemble certain forms of Hydrophilidse, e. g. Hydrocharis.

1. Dyscinetus Isevipunctatus.

Dyscinetus trachypygus (partim)^ Burm. Handb. der Ent. v. p. 79 \

Hab. Mexico i, Cordova, Toxpam {Salle), Paso del Macho, Paso de San Juan,
Acapulco {Edge), Temax in North Yucatan ( Gaumer) ; Beitish Hondueas, R. Sarstoon
{Blancaneaux) ; Guatemala, Paso Antonio {Chanvpion) ; Nicaeagua {Salle), Chontales
{Janson) ; Pan^ama {Boucard).

Closely allied to D. duUus (Oliv.) of Cayenne, from which it diifers in its narrower
oblong form and in the pygidium being throughout confluent-punctate in both sexes ;
the four costee on each elytron are also broader and flatter and the interspaces less
numerously punctured. In the broad apex and narrow reflexed margin of the clypeus

312 LAMELLICOENIA.

and the broadly rounded mandibles the species closely resembles B. duhius. The
closely sculptured pygidium led Burmeister to confuse it with the North-American
JD. trachypygus ; this latter is smaller and more ovate in form, more strongly punctate,
and has the pygidium still more densely sculptured and opaque and in the female
furnished with two polished callosities near the apex ; in D. Imvipunctatus the sculpture
of the pygidium is not so dense and leaves narrow smooth elevated interspaces.

The claw-joint of the anterior tarsi in the male is slender and straight as in the
female, with level under surface, and the larger claw is scarcely thickened and forked ;
in B. trachypygus it is much thickened and strongly sinuated underneath, with long
and thick much deflected larger claw.

Two allied species {JD. duhius and another undescribed) similarly differentiated in the
males are found together also on the Lower Amazons, and I at first thought they were
cases of dimorphism in the male ; but the differences in the male claws are associated
with other differences in the form and sculpture of the pygidium. In B. Icevipunctatus
the pygidium is scarcely convex even in the male ; in the following species it is rather
strongly convex in this sex and triangular, but has compressed sides in the female.

I have adopted the MS. name given to the species by Chevrolat in the Salle col-
lection.

2. Dyscinetus frater. (Tab. xvill. fig. 13, s .)

D. Icevipunctato simillimus, elongato-oblongus, postiee vix dilatatus, niger, clypeo plenimque fere Isevi, antice
lato margineque acute (nee in medio altius) reflexo, fronte panciter punctulata ; thorace passim distanter
et mediocriter punctato ; elytris utrinque striis geminatis punctulatis vix impressis, costulis quatuor
planis, interspatiis plerumque sparse punctulatis.

cJ. Pygidium crebre confluenter punctulatum, medio versus apicem Iseve politum. Tarsi antici articulo
unguiculari robusto, subtus sat profunde sinuato, ungue majore latissimo, defiexo, insequaliter fisso.

2 . Pygidium triangulare, parum convexum, sparse punctatum, nitidum, basi crebre confluenter punctatum.

Long, 20 millim. d 5 .

Rab. Mexico, Paso del Macho, Paso de San Juan in Vera Cruz, Tejeria (Edge).

3. Dyscinetus picipes.

Chalepus picipes, Burm. Handb. der Ent. v. p. 79 \

Hah. Mexico, Cordova, Toxpam (iS'c^ZZis), Jalapa, Toluca,Vera Cruz, Tejeria (Edge). —
West Indies i, Cuba, Santo Domingo, Guadaloupe.

The strong and separated punctuation of the pygidium in both sexes mentioned by
Burmeister is very constant ; but a more important specific character is the very robust
anterior tarsi of the male, the fourth joint of which is prolonged at the apex beneath
(the prolongation finely striated) and the claw-joint strongly sinuated on its under
surface, with the major claw remarkably broad, deflected, and unequally cleft, and the
slender division divergent. The clypeus is always undulate-strigose and much narrower
in front than in the preceding species, with its reflexed margin higher and sometimes

DYSCINETUS.— STENOCEATES. 313

•flexuous in the middle. The ligula differs from that of B. Icevipunctatus in being
deeply angulate-emarginate ; and the mandibles differ greatly in being sinuated externally
towards the apex, and not broadly rounded as in the typical species of the genus.

4. Dyscinetus barbatus.

Scarabaus barbatus, Fabr. Mant. Ins. i. p. 10. no. 91.

Melolontha barbata, Fabr. Syst. Eleuth. ii. p. 167 '. /

Chalepus barbatus, Burm. Handb. der Ent. v. p. 77 ^

Chalepus hydrophiloides, Burm. loc. cit. p. 77 ^.

Hah. Guatemala [Salle). — South Ameeica, Pernambuco to Santa Catarina ^ ; West
Indies ^ ^ ^ India," Fabr.).

On comparing a large series from many localities in the West Indies and Brazil, I
find no difference of any moment among them and suspect that C. hydrophiloides, Burm.,
is the same species. The sexual characters, both male and female, are the same
throughout.

5. Dyscinetus bidentatus.

Chalepus bidentatus, Burm. Handb. der Ent. v. p. 81 \

Cyclocephala brevis, Perty, Del. Anim. Art. Bras. p. 46, t. 9. fig. 16 ?

Hah. Mexico, Cordova {Salle), Vera Cruz, Tejeria {Hoge). — South Ameeica i, Vene-
zuela, Amazons.

The description of Cyclocephala brevis, Perty, seems to me to apply to this species
rather than to D. gagates, to which Burmeister refers it with doubt.

STENOCRATES.

Stenocrates, Burmeister, Handb. der Ent. v. p. 83 (1847).

Six species of this genus are known, all tropical American. Besides the simple
anterior tarsal claws of the males, the excessively compressed hinder tibise distinguish
the genus from Dyscinetus.

1. Stenocrates laborator.

Geotrupes laborator, Fabr. Ent. Syst. i. p. 33 \ •

Scarab(Bus laborator, Oliv. Ent. i. 3, p. 53, t. 14. fig. 132.
Stenocrates laborator, Burm. Handb. der Ent. v. p. 85 ^

Hah. Mexico, Tuxtla [Salle).— ^omn. Ameeica, to South Brazil i ^.

A single example in the Salle collection is all that I have seen from our region of
this common South-ximerican species. It differs from the southern form in the
margin of the frontal suture being somewhat raised on each side and in the fewer
punctures of the thorax.

BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, December 1888. 2 SS

314 LAMELLICOENTA.

Subfam. PENTODONTIN^.
EUETHEOLA.

Gen. Stenocrati et Heteroiiycho afflnis, sed differt tarsis anticis (S simplicibus. Corpus cylindricum. Clypeus
antice valde angustatus, apice bidentato-reflexus, carina frontali medio late interrupta. Mandibulse-extus
valde sinuatse, apice sursum reflexae, margineque apicali lato, obtuso (interdum extus subdentatse, apice
extus et STipra reflexae) ; maxillae apice crasse quinquedentatae ; mentum convexum ; palpi fusiformes.
Thorax simplex. Tarsi antici utroque sexu simplices ; postici articulo prime triangulari. Prosterni
processu posteoxali apice antice rectangulariter reflexo ibique planato. Organ a stridulantia desunt.

This new genus is necessary for the reception of the Ileteroni/chus humilis of
Burmeister, a species which its describer afterwards excluded from Heteronychus on
account of the absence of stridulating-surface from the propygidium, and which also
differs from Heteronychus by the simple claw-joints of the male anterior tarsi. The
under surface of the elytra near the margins is clothed with fine laid hairs. In the
bidentate clypeus JEuetheola much resembles Lyscinetus hidentatus, from which it gene-
rically differs again in the simple fore tarsi of the male, and also in the shape of the
mandibles. The last-mentioned character separates it from Stenocrates^ with which
genus it has the closest affinity, and to one species of which [S. holomelcena) it bears
so striking a resemblance that if the mandibles formed the only point of difference
a generic separation would scarcely be justified; but Euetheola has a further distin-
guishing character in the short basal joint of the hind tarsi, which effectively separates
it from Stenocrates, the latter having this joint always long and linear.

1. Euetheola humilis. (Tab. xviii. fig. 14.)

Heteronychus humilis, Burm. Handb. der Ent. v. pp. 93 ^, 539.

ffab. Mexico, Tuxtla (Salle), Tlacotalpam, Cordova (Edge) ; Panama, Lion Hill
{McLeannan). — South America to South Brazil ^.

A Panama specimen is figured.

LIGYRUS.

Ligyrus, Burmeister, Handb, der Ent. v. p. 543 (1847) ; Lacordaire, Gren. Col. iii. p. 408.
Tomarus, Erichson, Wiegm. Archiv fiir Naturg. 1847^ i. p. 95.

About a dozen distinct species of this genus have been described, all American, and
spread over the temperate as well as the tropical zones. The characters given by
Burmeister and Lacordaire require to be modified as regards the fore tarsi, which both
authors give as simple in both sexes, but which in about half the species have the
outer claw, in the male, thickened and deflected. The species are otherwise so closely
related, all agreeing in the singular position of the stridulating-surface, viz. underneath
the apical part of the elytra, and not, as in the Dynastidee generally, on the propy-
gidium, that the genus cannot well be divided. The mandibles are broad and
flattened, with their apical edge armed with two teeth, and their outer edge strongly
rounded, or in some cases forming a third tooth.

LIGYEUS. 315

I. Tarsi antici utroque sexu simplices.

1. Ligyrus latifovea. (Tab. xviii. %. 15.)

Heteronychus scarabaeinus , Burm. Handb. der Ent. v. p. 100^?

Ligyrus scarabcsinus, Burm. loc. cit. p. 542 (nee Cyclocephala scarabeeina, Perty).

Hah. Mexico, Teapa, Cosamaloapam (Salle). — South America i, Guiana, Amazons.

Two examples (male and female), agreeing well with others from Demerara and
the Amazons with which I have compared them. Burmeister, as is clear from the
note following his description, confounded two widely-distinct species under his
L. scarabminus. The " smaller-headed " form, with deeper thoracic excavation, to
which his unsatisfactory description chiefly appUes, is that in which the anterior tarsi
are simple in both sexes; the "larger-headed" form, which appears to be equally
common in Guiana and the Amazons valley, has a strongly thickened anterior claw-joint
in the male, with the fourth joint produced and striated beneath. The latter is of a
deeper black colour, and more finely punctured; the clypeus shows a wider space
between the apical teeth ; and the thoracic pit is narrower and triangular. This is, no
doubt, the Scaralceus ehenus of De Geer (Mem. Ins. iv. p. 317, 1. 19. f. 1), and according
to Kirsch (Berl. ent. Zeitschr. 1873, p. 346), for whom von Harold compared specimens
with the type at Munich, it is also the true Cyclocephala scarabmna of Perty.

L. gyas, Erichs, (Schomburgk, Reise Guian. iii. p. 561), is evidently closely allied to
L. latifovea ; but the closely-punctured elytra and small shallow thoracic pit apply
better to a somewhat smaller species, of which I have many from the Amazons.

Ligyrus latifovea varies in size from 27 to 37 millim. ; the clypeus is longer and more
narrowed anteriorly than in L. ehenus, and the apical teeth are much more nearly
approximated ; and the thorax has a higher and sharper frontal tubercle, and a much
broader (in large examples subquadrate) excavation. In both species the mandibles are
bidentate, and the tibiae simply tridentate.

2. Ligyrus tumulosus.

Heteronychus tumulosus, Burm. Handb. der Ent. v. p. 101 \
Ligyrus tumulosus, Burm. loc. cit. p. 542.

Hah. "? North America i.— Mexico, Vera Cruz (Hoge); British Honduras, Belize
(Blancaneaux). — South America, Colombia ; West Indies i.

Burmeister describes L. tumulosus as reddish-brown and strongly punctured (including
the pygidium), with broad bidentate clypeus and ftont transversely carinated (carina
depressed in the middle), and the thorax furnished with a feeble frontal tubercle and
slight depression. These characters apply to a species of which I find only two
examples in our collections, and which is very distinct from the deceptively-similar
L. salloei described below. To Burmeister's diagnosis must be added the important

'- , , 2SS2

316 ' LAMELLICOENIA.

characters that the anterior tarsi are simple in both sexes, and the tibiae tridentate, i. e.
without trace of a fourth upper tooth. The size ranges from 17 to 21 millim.

In the Munich catalogue Scardbceus antillarum of Beauvois is given as a probable
synonym of L. tumulosus. The figure cited, however, plainly refers to a species vs^ith
narrow bidentate clypeus, like L. nasutus.

3. Ligyrus gibbosus.

Scarab(sus gibbosus, De Geer^ Mem. Ins. iv. p. 322, t. 19. f. 7 '.

Ligyrus gibbosus, Leconte, Proc. Ac. Phil. 1856, p. 20^; Horn, Trans. Am. Ent. Soc. 1875, p. 143.

Podalgus variolosus, Burm. Handb. der Ent. v. p. 121 ^

Geotrupes juvencus , Fabr. Ent. Syst. i. p. 32.

Podalgus juvencus, Burm. Handb. der Ent. v. p. 121*.

Ligyrus juvencus, Burm. loc. cit. p. 542.

Ligyrus morio, Leconte, Proc. Ac. Phil. 1856, p. 20 ° (apud Horn, Trans. Am. Ent. Soc. 1875, p. 143) .

Bothynus obsoletus, Leconte, Journ. Ac. Nat. Sci. 2nd ser. i. p. 87 ".

Bothynus neglectus, Leconte, loc. cit.

Hah. North America 12345 6^ — Mexico, Mazatlan (I)r. Cwsar, sec. Sturm in coll.
Salle), Durango city [Edge).

The single example from Sturm's collection agrees precisely with North-American
specimens of Z. gibbosus (juvencus) with which I have compared it. Numerous so-called
species have been founded on slight variations which are not more marked here than in
other species of the genus, and I follow Dr. Horn in re-uniting them. L. gibbosus is
closely allied to L. tumulosus ; but is generally shorter and relatively broader, with
the teeth of the clypeus approximated, the frontal carina median and entire, and the
tubercle and pit of the thorax more strongly developed. The single specimen from
Durango city is much worn, but is evidently referable to the same species.

4. Ligyrus ruginasus.

Ligyrus ruginasus, Leconte, Proc. Ac. Phil. 1856, p. 20 \

Sab. North America, Texas ^. — Mexico, San Pedro in Coahuila [Dr. Palmer), Chi-
huahua city. Villa Lerdo in Durango, Iguala in Guerrero [Edge), Ventanas (Forrer).

Distinguished from all other species of the genus by its pointed and submucronated
clypeus and reddish-testaceous colour ; the anterior tarsi are simple in both sexes, and
the tibiae tridentated.

5. Ligyrus laBvicoUis. (Tab. XVIII. fig. 16, s .)

Oblongo-ovatus, niger, politus, siibtus piceo-rufescens ; clypeo valde angustato apiceque dentibus daobus approxi-
matis, fronte tuberculis duobus mediocriter distantibus, conicis, acutis ; thorace subelongato, disco lasvi,
lateribus disperse punctulatis, tuberculo antico parvo obtuso foveaque parva triangulari baud profunda
parce punctato-rugulopa ; elytris subgrosse punctatis, striis geminatis utrinque tribus, interstitio lato sub-
suturali plerumque Isevi ; pygidio fere lasvi, basi tantum confiuenter punctulato, S valde convexo, $
planato-declivi. Tibiae antica3 dente 4° brevissimo ; tarsi antici ^ 5 simplices. Mandibul^ bidentatse.

Long. 18-22 millim. c? $ •

LIGTKUS. 317

Hah. Mexico, Cordova, Acapulco and Chilpancingo in Guerrero, Tapachula in
Chiapas {Edge) ; British Honduras, R. Sarstoon, Belize (Blancaneaux).

Agrees in some respects with Burraeister's description of his L. fossator, but he says
the anterior tibiae are without trace of tooth above the third. An example from
Acapulco is figured.

6. Ligyrus nasutiis. (Tab. XVIII. fig. 17, 6 .)

Podalgm nasutus, Burm. Handb. der Ent. v. p. 120 \

Hah. Mexico, Acapulco and Chilpancingo in Guerrero (Hoge), Yucatan i ; Guate-
mala i, San Geronimo (CAamp^o?^).

Twelve examples, in all of which the frontal carina is continuous (without median
depression), and at each end connected with the side of the head by a short lower
carina. The weak marginal tubercle of the thorax mentioned by Burmeister exists at
most only as a triangular flat projection of the anterior margin, and in many examples
is entirely absent. The pygidium is smooth and polished, generally with a few
scattered punctures. A specimen from San Geronimo is figured.

7. Ligyrus pygidiaHs.

A prEecedente differt carina frontali medio depressa vel divisa plerumque utrinqne abbreviata, pygidioque in $

medio apice depresso utrinque obtuse calloso.
Long. 16-18 millim. d 2- '

Hah. Mexico, Temax in North Yucatan (Gaumer).

A very large series of examples, constant in their differences from L. nasutus. The
thoracic tubercle is very seldom wanting, and is sometimes a little elevated and
followed by a faint depression.

8. Ligyrus fossor.

Scarabceus fossor, Latreille in Humboldt and Bonpland's Obs. Zool. ii. p. 11, t. 31. f. 2 (1833) \
Podalgus fossor, Burm. Handb. der Ent. v. p. 119 '.
Ligyrus fossor, Burm. loc. cit. p. 542.

Hah. Panama, Volcan de Chiriqui 2500 to 4000 feet, Taboga Island {Champion).—
South America, Colombia ^ ^.

Very similar to L. nasutus and L. pygidialis, agreeing with the latter in the frontal
carina being depressed in the middle (it is, in fact, interrupted and each half much
less raised) ; but it differs from both in the pygidium being coarsely umbilicate-punctate,
and the clypeus truncate-edentate. The frontal tubercle of the thorax is very slightly
indicated. Mr. Champion obtained two examples only.

318 LAMELLICOENIA.

II. Tarsi antici 6 ungue exterior e crasso deflexo.

9. Ligyrus ebenus.

Scarabceus ebenus, De Geer^ Mem. Ins. iv. p. 317, t. 19. fig. 1 \
Scarab(Bus cordatus, Fabr. Ent. Syst. i. p. 31 (1792) ^

Cyclocephala scarabceina, Perty, Del. Anim. Art. Bras. p. 46, t. 9. fig. 15 ^
Ligyrus scarabcsinus, Kirsch, Berl. ent. Zeitschr. 1873, p. 346.

Hah. Mexico, Tuxtla (Salle). — South Ameeica, Guiana i, Peru 2, Amazons, Brazil ^ ;
West Indies, St. Martin [coll. Bates\ Guadaloupe 2.

Deep shining black (piceo-castaneous beneath) and finely sculptured. The head is
broad, and the clypeus only moderately narrowed, with two very broad and obtuse
distant teeth ; the mandibles are bidentate and the tibiae tridentate ; the thoracic
tubercle is acutely conical, and the fovea rather narrow and deep and sub triangular.
In the male the anterior tarsi are short and thick, the fourth joint produced beneath
into a longish flattened and striated tooth, and the outer claw is very broad and deflexed,
and deeply, but unequally, cleft at the apex. The size of the Amazons and West Indian
examples is 27-30 millim. M. Salle's single Mexican specimen is only 22 millim.
[De Geer says the species measures " about an inch " (old French X)?\ It is named
(with L. latifovea) Ligyrus fossator (Burm.) in the Salle collection.

10. Ligyrus sallsei. (Tab. XVIII. fig. 18.)

L. relicto (Say) proxime affinis, sed L. tumuloso (Burm.) similior. Elongato-oblongo-ovatus, castaneo-fuscus
(interdum elytris rubicundis) vel Bigro-piceus, nitidus, pectore vulpino-villoso ; clypeo valde angustato
apice valde reflexo, dentibus duobus latis, carina frontali alte elevata et medio valde depressa vertice
concavo ; thorace disperse punetato, antice simplici ; elytris utrinque striis punctatis geminatis tribus,
interstitiis mediocriter punctatis ; pygidio discrete (interdum parce) umbilicato-punctato. Tibiae anticae
dente 4° parvo, aeuto, juxta 3^ basin alteraque simili inter 2™ et B*". cJ • Tarsi antici mediocriter robusti,
ungue majore deflexo incrassato apice intus uni-spinoso; articulo 4° apice subtus producto et striate.
Mandibulse tridentatse.

Long. 18-25 millim. ^ $ .

Hab. Mexico, Toluca, Juquila, Vera Cruz (Salle), Mexico city (Iloge, Smith), Irapuato
in Guanajuato, Jalapa, Almolonga, Oaxaca (Edge) ; Guatemala (Salle), Cubulco in
Vera Paz (Champion) ; Nicaragua, Chontales (Janson); Costa Rica, Cache (Bogers).

More than fifty examples, varying widely in size, form, and colour, but very constant
in the structural characters described above. The species comes very close to the
North- American L. relictus, having a very similar form of frontal carina, and similar
mandibles and anterior claw-joint and claws in the male. When a large series of each is
compared, much dissimilarity is shown as to general form and colour, and L. sallcei
differs in every example in the much broader and less approximated clypeal teeth,
and the presence of a well-formed denticle between the 2nd and 3rd anterior tibial teeth.
We figure an individual from Almolonga.

BOTHYNIJS. 319

BOTHYNUS.

Bothynus, Hope, Col Man. i. p. 95 (1837) ; Burmeister, Handb. der Ent. v. p. 115, § II. (1847) ;
Lacordaire, Gen. Col. iii. p. 413.

A genus containing five described species from South America. It is very insuffi-
ciently distinguished by the authors above cited from Sca^topMlus, of v^^hich eleven
species from the same region and from the West Indies have been described. With
Corynoscelis, Burm., the three genera form a small group, distinguished from Ligyrus and
its allies by the propygidium being more or less strongly produced in the middle, and
restricting the length of the pygidium, and its surface being scored in both sexss with
fine transverse striae as part of the stridulating-apparatus.

1. Bothynus quadridens. (Tab. XVIII. fig. 22.)

Corynoscelis quadridens, Taschenberg, Zeitschr. f. d. gesammten Naturwissensch. i. Neue Folge,
p. 185 \

Hah. Mexico, Oaxaca {Salle), Tres Marias Is. (Forrer) ; Beitish Hondueas (Blanca-
neaux); PAifAMA, Chiriqui (Trbtsch). — South Ameeica; Ecuador i.

cJ . Tarsi antici ungue exteriore valide dentato, sed nee incrassato uec deflexo.

Five examples. This species is possibly the Podalgus complanus, Burm. Our
examples agree perfectly with Taschenberg's description, except that no mention is
made there of an obtuse prominence in the middle of the hind margin of the confluent-
punctate thoracic fovea. This exists in all, except in a feebly-developed female. The
insect is glossy-black or piceous, with nearly smooth elytra, which at most have a
feebly-indicated sutural stria, and a few other faint striae near the base.

A specimen from Tres Marias Islands is figured.

2. Bothynus simplicitarsis.

B. quadridenti simillima, differt solum ungTiibus tarsorum anticomm in c? simplicibus. Oblongus, interdum
latins oblongus, nigro-nitidus, subtus picescens et vulpino-rufo hirtus ; mandibulis valide et acute tridentatis ;
capite punctato-scabroso, clypeo elougato attenuato, lateribus sinuatis, apice acute bidentatis, fronte
tuberculo compresso basi dilatato ; thorace mediocriter transverse, lateribus cum angulis posticis rotun-
datis, margine antico medio unituberculato, disco anteriore late foveato, ruguloso-punctato, fovese margine
posteriore medio plerumque obtusissime unituberculato, lateribus discrete punctatis, versus basin sublsevi,
margine basali stria pauUo impresso, confuse punctate; elytris fere laevibus, plus minusve subtiliter
striate-punctulatis, stria suturali baud impressa. Tibiae anticae valide 4-dentatae ; 4 posteriores extus
acute bicarinatse carinisque extus in dentem productis, apice flexuessD, setosse.

(S . Pygidium paullo convexum ; segmentum ultimum ventrali apice late et profunde sinuatum. Tarsi antici
unguibus simplicibus.

2 . Propygidium medio minus productum ; pygidium planum vel concavum ; segmentum ultimum ventrale
latum, apice integrum.

Long. 27-32 millim. ^ 2 -

Hah. Guatemala, Cohan in Vera Paz [Chamjpion, Conradt). Eighteen examples.

320 LAMELLICOENIA.

3. Bothynus monstrosus.

Late quadrato-oblongus, niger, nitidus, subtus pieeus, vulpino-rufo hirtus. Mandibulse et capite sicut in
B. simplicitarsi, occipite proloBgato excepto ; thorace latissimo et brevissimo, antice profundissime trian-
gulariter emarginato, margine ipso in medio interrupto, dorso medio sulcato, disco anteriore utrinque in
foveam elongato-transversam excavato et scabroso-punctato, fovearum margine posteriore flexuoso et
obtuse plurituberculato, lateribus cum angulis posticis rotundatis ; elytris sicut in B. simplicitarsi fere
Isevibus. c? . Tarsi antici unguibus simplicibus.

Long. 30 millim. cJ •

Ilab. Guatemala, Coban in Vera Paz (Conradt). One example only,

CHEIROPLATYS.

Cheiroplatys, Hope, Col. Man. i. p. 84, t. 1. fig. 3 (1837); Burmeister, Handb. der Ent. v. p. 108;

Lacordaire, Gen. Col. iii, p. 411 (1856).
Orizabus, Fairmaire, Eev. et Mag. Zool. 1878, p. 260; Horn, Trans. Am. Ent. Soc. xii. p. 124

(1885).

The genus Orizabus was suggested, without name, by Lacordaire, who, in a footnote
to his description of the Australian genus Cheiroplatys, mentioned that lie had a
Mexican species possessing characters belonging to it, but differing in many essential
points ; but these differences were not specified either by him or by Fairmaire, who
admitted the very close affinity between the Mexican and Australian forms. The
uncertainty under which the genus Cheiroplatys stands, owing to Hope's erroneous and
misleading description and figures, and the further confusion he introduced by
founding his characters on an undescribed species, whilst citing as the type a Fabrician
species which has no near relationship to his described type, are no doubt partly the
cause why the genus Orizabus was founded and has been retained. I think, however,
the two genera may be safely reduced to one. The great similarity in the extraordinary
form of the fore tibiae of the male in nearly all the species, and in the reflexed front
edge of the clypeus raised behind the true front edge, as well as the entire agreement
in form of thorax and legs and in the sculpture, is corroborated by a close agreement
in the parts of the mouth, especially in the short and broad, unarmed mandibles
(concealed in repose), and the elongated mentum, gradually narrowed but parallel-sided
in the ligular part, with the apex of the latter notched or truncated. Hope's figure of
the maxillae is superficially accurate, but he failed to note that the two apparently
simple teeth are each two teeth side by side ; as to the mentum his figure and
description are alike erroneous if they are taken from the same species, C. juvencus of
Burmeister (Handb. der Ent. v. p. 110), which both authors consider to be the
C. juvencus, Kirby, MS., the type of the genus. I have compared the parts of the
mouth of that species with those of C. ( Orizabus) cultri^es, Fairm.

Five species of Orizabus have been described from the United States and Mexico, and
twelve species of Cheiroplatys from Australia and the Islands of the Western Pacific.
Many of the latter require re-examination.

CHEIEOPLATYS. 321

1. Cheiroplatys cultripes. (Tab. XVIII. figg. 19 c? , 20 $ .)

Orizabus cultripes, Fairm. Rev, et Mag. Zool. 1878^ p. 261 \

Hah. Mexico, Orizaba i, Toluca, Tepansacualco, Duraznal (SalU), Jalapa, Misantla,
Mexico city (Hoge); Guatemala, Coban in Vera Paz (Chanipion), Tactic, Tepan
[Conradt).

This species is barely distinguished from the following by the immarginate base of
the thorax ; for some examples show a trace of marginal sulcus in the depression which
exists on each side, and it is often visible also towards the hind angles.

The anterior tibiae of the female, both in this species and in C. clunalis, sometimes
assume the male form, i. e. the outer side laminiform and unarmed. In all the other
females the anterior tibiae are more or less expanded, and the outer edge is often deeply
bisinuated, or even unisinuated, rather than tridentated.

2. Cheiroplatys clunalis.

Aphonus (?) clunalis, Leconte, Proc. Ac. Phil. 1856, p. 23 \
Orizabus Snowii, Horn, Trans. Am. Ent. Soc. 1885, p. 124 ( c? ) ^
Orizabus ligyroides, Horn, loc. cit. p. ] 25 ( ? ) ^
Orizabus marginatus, Fairm. Rev. et Mag. Zool. 1878, p. 262*.
Orizabus Sallei, Fairm. loc. cit.^

, Eab. NoETH Ameeica, Texas 1, New Mexico 2, Arizona ^. — Mexico 4, San Miguelito
(Br. Palmer), Orizaba, Oaxaca, Jalapa^ (Salle), Cordova, Pachuca in Hidalgo, Mexico
city (Edge).

The marginal sulcus or impressed line of the base of the thorax is always visible in
both sexes, and, with a few exceptions (where it is interrupted and faint), continuous;
it is nearly always curved or angular in the middle of the basal lobe, and scored on
the dorsal surface (not on the deflected edge) of the thorax.

I have compared type-specimens of the males of 0. marginatus and 0. sallwi, bearing
names in Fairmaire's handwriting, and find no differences between them, except in size
and punctuation, in both of which features, as well as in general form, the species is
very variable ; and I have also compared these with examples of C. clunalis (Lee), male
and female, named for me by Dr. Horn, and find no difference worth mentioning.

3. Cheiroplatys fairmairei. (Tab. xvill. figg. 23 c? , 24 $ .)

Mil) or, breviter quadratus, pieeo-niger vel castaneus, thorace interdum rufo, nitidus, subtus vulpino-villosus ;

clypei margine antico cariniformi minime bidentato, fronte inermi vel unituberculata ; thorace antice

gradatim angustato, medio basi late immarginato ; elytris fere sicut in G. clunali punctato-striatis. Tibiae

anticse J $ extus niillo modo explanatse, obtuse tridentatse, dentibus duabus apicalibus approsimatis.

(3 . Thorax sicut in $ convexus, simplex.

Long. 16-19 millim. c? ? •

Eab. Mexico, Jacale, San Andres Tuxtla (Salle), Pachuca in Hidalgo, Oaxaca,.
Esperanza (Edge).
BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, Eecember 1888. 2 TT

322 LAMELLICOENIA.

The male, of which there are many examples, is readily distinguishable from the
same sex of the other species by the absence of thoracic fovea and marginal tubercle,
and by the tridentate anterior tibiee ; in all examples the thorax is free from traces
of marginal stria along the base, except near the angles. The female is not distin-
guishable, except in size, from the same sex of C. cultripes.

The numerous specimens may, perhaps, be only degraded forms of one or other of
the two larger species ; some females {C. clunalis) are of similar size, and are distin-
guishable from C. fairmairei only by the base of the thorax being margined. One
male specimen in the Salle collection is labelled, in Fairmaire's handwriting, as
Orizahus sallcei $ ; but its small size shows that it was not included in his description
and dimensions of that species.

4. Cheiroplatys isodonoides.

Orizabus isodonoides, Fairm. Rev. et Mag. Zool. 1878^ p. 263 ^.
Hah. Mexico, Toluca ^ {Salle, Hbge), Mexico city, Salazar {Hbge).

A small species, similar to the preceding, but of shorter, subquadrate-ovate form, and
distinguished from all others of the genus by the transverse carina near the frontal
suture, extending from side to side in front of the eyes, and parallel to the straight
apical carina of the clypeus. The anterior tibiae of the male are dilated and unisinuate
externally.

Subfam. ORYCTINM

XYLORYCTES.

Xyloryctes, Hope, Col. Man. i. p. 90, t. 2. fig. 7 (1837) ; Burmeister, Handb. der Ent. v. p. 207;
Lacordaire, Gen. Col. iii. p. 432.

A genus consisting of four described species, peculiar, so far as at present known, to
North America, from temperate latitudes to the Isthmus of Panama, and to the West
Indies.

Lacordaire is in error in stating that this genus has stridulating-strise on the propy-
gidium. That segment is simply punctured.

1. Xyloryctes satyrus.

.Scarab(Bus satyrus, Fabr. Syst. Ent. p. 12 (1775)^; Olivier, Ent. i. 3, p. 39, 1. 11. fig. 94^; Drury,

111. Ex. Ins. i. t. 34. figg. 1, 2 ( (^ ? ).
Xyloryctes satyrus, Burm. Handb. der Ent. v. p. 208 ^

Hah. NoETH Ameeica ^ ^ ^. — Mexico (Flohr), Paso de San Juan in Vera Cruz, Zimapan
in Hidalgo (Hoge).

The Mexican examples agree with others from the Atlantic States, except that some
-of them have distinctly longer elytra, and at the same time the sides of the thorax in

XYLOEYCTES. 32 S

the male less (or not perceptibly) sinuated towards the anterior angles. Others agree
with the North-American form in both these respects.

Driiry, apparently misled in some way by Fabricius, gave, in his Index (1773), the
inappropriate name of S. jamaicensis to the insect of which he figured the male and
female in the body of his work, stating, in the text, that he received the two sexes,
found in Go;puld, from New York. Fabricius soon after (1775) described his two-
species [S. satyrus and S. jamaicensis), the former the same as Drury's species, the
latter evidently different from it, although he cites Drury's figures. On these grounds
Yon Harold (Col. Hefte, vii. p. 117) proposed the suppression of the name S. satyrus,
and the adoption of that of S, jamaicensis for the New-York species. I cannot think
that such a ridiculous misapplication of the laws of priority will be adopted by ento-
mologists, especially by those of the United States, who, in fact, have hitherto ignored
the suggestion.

2. Xyloryctes lobicollis. (Tab. XYIII. figg. 21, 21 a, s .)

X. satyro simillimus, pauUo magis elongatus, thorace in S antice verticaliter truncato et profundius excavato,.

margine superiore medio lobulo horizontaliter porrecto et obtuse sub-bifido, pygidioque subtiliter dense

punetulato. Thorax margine antico rotundato et paullo dilatato, elytris sicut in X. satyro punctato-

striatis.
(S minor. Cornu capitis brevissimum ; thorax antice multo minus alte truncatus, lobo mediano canaliculato

brevissimo.
$ . Quam X. satyro magis elongata pygidioque subtilius punetulato.
Long. 24-33 millim. <S $ .

Hah. Guatemala (Salle), Zapote (Champion) ; Panama, Volcan de Chiriqui (Trbtsch,,.
Champion).

Fourteen specimens. From Mexican examples of X. satyrus this species is not
distinguishable, except by the form of the thorax in the male, the fore part of which
is vertically truncated, with a central obtuse lobe projecting beyond the upper edge,.
and the face of the truncation concave. A male specimen from Chiriqui is figured.

3. Xyloryctes telephus. (Tab. XIX. figg. 4, 4 «, 5, 5 «, c? .).

Xyloryctes telephus, Burm. Handb. der Ent. v. p. 209 \

Hah. Mexico ^, Hacienda de Bleados in San Luis Potosi (I)r. Palmer), Oaxaca,^
Chiapas (Salle), Jalapa (Hoge).

A large number of examples were collected by Herr Hoge at Jalapa, all agreeing in
the obliteration of the sutural stria (except near the apex) as well as in the smoothness
of the rest of the elytral surface, and in the long, nearly horizontal, conical lobe of the
thorax, which projects over the deeply concave and vertical anterior truncature. The
pygidium is much more sparsely punctured than in X. lobicollis and X. furcatus, and
is often smooth and polished in the female. In males of minor development the
thoracic lobe is very short and obtuse, but it is never absent. The size varies from

2 TT 2

324 LAMELLICOENIA.

23 to 33 millimetres. The following is a doubtful variety, occurring in the same
localities as the type form : —

Tar. X. ensifer, Sturm, MS. Thoracis lobus brevis, latus, obtusus, medio canaliculatus ; elytra Isevia, stria
suturali punctulata subobsoleta. (Figg. 5, 5 a.)

Hab. Mexico {Sturm, in coll. Salle), Jalapa (Hoge), Chiapas (Salle).

We figure a typical well-developed male from Jalapa and a male of the var. ensifer
from Mexico (coll. Sturm).

4. Xyloryctes fiircatus. (Tab. XIX. figg. 1, l a, 2, 2 a, d .)

Xyloryctes furcatus, Burm. Handb. der Ent. v. p. 209 \

Hah. Mexico 1, Cordova (Salle), Mexico city, Jalapa (Hoge)', Guatemala (Salle),
Cohan and Tactic in Vera Paz (Conradt).

Distinguished in the male (in well-developed individuals) by the narrow, long,
obliquely elevated and bifid thoracic lobe ; and from X. telejphus in both sexes by the
well-marked and punctulated sutural stria. The sides of the thorax in the male are
more strongly explanate-reflexed than in the same sex of X. teleplius, but some
examples of the latter approach X/?^rmif«^s in this respect. The pygidium in the
male is more closely punctulated. We figure a well-developed male example from
Cordova, and a male minor from Jalapa.

5. Xyloryctes corniger.

Hah. Mexico (Sturm, in coll. Salle)-, Panama, Volcan de Chiriqui 3000 feet
{Champion).

A single male example, labelled X. corniger, Sturm, resembles X. telephus, var. ensifer,
but has a well-impressed sutural stria and the thoracic lobe somewhat different, the
latter being much broader and not canaliculated. It is a well-developed male
(32 millim. long), and has an almost perfectly straight cephalic horn flattened ante-
riorly. Two examples, males of minor development, from Chiriqui, agree with Sturm's
specimen in thoracic structure, and have cephalic horns very broad at the base, but
small and acute- triangular in shape.

6. Xyloryctes teuthras. (Tab. XIX. figg. 3, 3 «, c? .)

S minor. Breviter oblongus, eastaneus, capitis comu brevissimo basi lata apice acute ; thorace fere sicut in
X. satyro antice oblique truncato-declivi, margine superiore medio minime vel baud producto; elytris
obsoletissime striatis, stria suturali punctulato impresso, versus apicem profunde insculpta; pygidio
passim punctulato punctis majoribus intermixtis.

Xong. 24 millim.

Hah. Guatemala (Salle), Aceytuno 5100 feet (Salvin).

Two examples only ; of similar development to the two males of X. corniger from

XTLORTCTES.— MEGACEEAS. 325

Chiriqiii above described, but differing in the much more slanting truncature of the
fore part of the thorax and the absence of median prominence. Slight as their
peculiarities are they cannot be referred as varieties to any of the other described
species.

The species is labelled X. teuthras, Candeze, in the Salle collection.

7. Xyloryctes thestalus. (Tab. xviil. figg. 25, 25 a, s .)

Eobustus, X. telepho latius oblongus, piceo- vel castaneo-niger ; elytris subtiliter punctulato-striatis, interstitiis
convexis, stria suturali punctata distincta sed medio parum impressa ; pygidio disperse punctate.

(S major. Comu capitis altum, subrecurvum, apice postice nodosum ; thorax antice valde oblique declivis nee
medio concavus, lobo mediano longe post medium oblique ascendenti, apice lato et plerumque emarginato.

Long. 32-37 millim. d •

Hah. Mexico, near the city (Flohr, Edge).

Numerous examples, differing but little in development, and all distinguished from
X. telephus, apart from the presence of a sutural stria, by the very different form of the
thoracic truncature, and the position of the central lobe or short horn projecting from
its upper margin ; this latter in X. telephus and in other species rises much before the
middle of the thorax, and in X. thestalus considerably behind the middle, with the
correspondingly oblique truncature plane, instead of concave, in the centre.

Certain female examples from the same locality may belong to this species ; they do
not, hovrever, differ from the corresponding sex of X. furcatus. They are of large size
(34 millim.), and have a distinct punctured sutural stria, with other striae on the elytra
indicated by convex interstices as in the male.

MEGACERAS.

Megaceras, Hope, Col. Man. i. p. 82, t. 1. fig. 1 (1837) ; Burmeister, Handb. der Ent. v. p. 221 ;
Lacordaire, Gen. Col. iii. p. 435.

Seven species of this fine genus have been described, all from Tropical South America ;
one of them is here recorded for the first time as occurring north of the isthmus.

1. Megaceras philoctetes. (Tab. xix. figg. 6, 6 («, c? var.)

Scarabceus pMloctetes, Oliv. Ent. i. 3, p. 16, t. 14. fig. 125 \

Bob. Costa Eica [SalU, Van Patten), Cache (Bogers) ; Panama, Bugaba, Volcan de
Chiriqui 4000 to 6000 feet (Champion).— ^ovtr America, Surinam, Guiana, Brazil i.

The very numerous Central- American specimens differ from the many typical examples

from Surinam and the Amazons with which I have compared them suflftciently to be

distinguished as a local form : — •

Var. M. septentrionis. Brevior, piceo-niger vel castaneus ; clypeo acute bidentato ; thorace brevi, lateribus

medio valde rotundatis, angulis posticis obtusis fere rotundatis, in c? interdum (raro) subrectis.
<? . Cornu capitis apice latum emarginatum, interdum subacutum, postice prope apicem obtusissime tuberculatum

326 . LAMELLICOENIA.

vel simplex ; thorace sicut in typo gibbere alto antiee dentibus duobus subparallelis lateribusque a gibbere
usque ad angulos anticos et marginibus grosse strigosis.
$ . Thorax dimidio anteriore et lateribus grosse, antiee confluenter, punctatis, medio prope marginem anticum
obsolete bituberculatus.

Long. 32-45 millim. (? $ .

•

Examples of this variety are labelled in the Salle collection M. morpheus, Burm. ; but
they do not at all agree with that author's description, which refers to a species from
Colombia of narrow form, and especially narrow prothorax. Burmeister's descriptions
of the species of this genus are, besides, so incomplete, that no safe determination is
possible.

The stridulating-striae of the propygidium are beautifully perfect on two divergent
ribs which cross the middle of the segment ; on the rest of the surface they are coarser
and interrupted. In a highly-developed male example from Costa Rica the thorax is
longer than in the others, and is gradually narrowed in an incurved line from the
median dilatation to the anterior angles. M. philoctetes was found in the greatest
profusion in the water and along the banks of a lagoon in the dense forest on the slope
of the Volcan de Chiriqui at an elevation of 4000 feet {Champion). A well-developed
male from Bugaba is shown on our Plate.

CCELOSIS.

Cmlosis, Hope, Col. Man. i. p. 88, t. 2. fig. 6 (1837) ; Burmeister, Handb. der Ent. p. 215 ;
Lacordaire, Gen. Col. iii. p. 436.

Three or four species are all that are at present known of this peculiar genus, one
extending to Mexico and the others restricted to Tropical South America.

1. Coelosis biloba.

Scarabmus bilobus, Linn. Syst. Nat. i. 2, p. 544; Fabr. Syst. Ent. p. 6; Oliv. Ent. i. 8, p. 31, t. 5.

fig. 35 ( ? ), t. 23. fig. 35 ( (J), t. 1. fig. 5 ((? minor) \
Cmlosis biloba, Burm. Handb. der Ent. v. p. 217 ^

Hah. Mexico, Cordova, Toxpam {Salle, Edge) ; Beitish Hondueas, Cayo {Blanca-
neaux); Guatemala, Cubilguitz {Cham;pion\ Coh^cn. {Conradt); Hondueas, Kuatan I.
{Gaumer) ; Nicaeagua, Chontales {Belt, Janson); Costa Eica {Van Patten) ; Pajn-ama,
Bugaba, Volcan de Chiriqui, David, Tole {Champion). — South Ameeica, Cayenne ^ 2 .
West Indies ^.

Mexican examples figure in collections under the catalogue-name of var. nicon
(Chevr.), but they ofier no character to distinguish them from the Panama azid South-
American form.

HETEEOGOMPHUS. — D^MONOPLrS. 327

HETEROGOMPHUS.

Heterogomphus, Burmeister, Handb. der Ent. v. p. 225 (1847); Lacordaire, Gen. Col.'iii. p. 437.

Twenty species of this ill-defined genus of Dynastidse are recorded, with two or three
exceptions all from South America, chiefly Brazil.

1. Heterogomphus chevrolati. (Tab. xix. figg. 1,1 a, 6; 8, 8 «, $; 9,

9«, c? , var.)

Heterogomphus Chevrolatii, Burm. Handb. der Ent. v. p. 233 \

Hah. Mexico \ Mirador, Capulalpam [Salle), Jalapa {Hoge) ; Guatemala, Senahu in
Vera Paz {Champion), Coban (Conradt) ; Costa Rica, Rio Sucio (Rogers). — Colombia,
Santa Marta.

Both mandibles and maxillse in this species are toothless, and prolonged into narrow
sharp-pointed blades ; and the apical rims of the four posterior tibiae are minutely crenu-
lated, and not toothed. The following variety is known only in the form of undeveloped
males, and though agreeing with H. chevrolati in mouth-structure and the form of the
terminal rims of the posterior tibise, it may prove when further material arrives to be a
distinct species : —

Yar. S. eurytus. S minor ; brevior et latior, prsecipue elytris postice ampliatis. Eufo-castaneus, cornu
capitis brevissimum ; tborace valde transverse, lateribus arcuatis dimidio anteriore et lateribus fulvo-hirtis
grosse strigosis, fove^que latae anterioris margins postico obtuse transversim tuberculato ; elytris Isevibus,
subtiliter pnnctulatis, stria suturali debili et striis nonmillis curtis post bumeros punctatis. (Figg. 9, 9 a.)

Long. 38 millim.

Hab. Costa Rica, Irazu 6000 to 7000 feet {Rogers). Two examples.

We figure a typical well-developed male from Mirador, a female from Capulalpam,
and a male minor of the var. eurytus from Irazu.

2. Heterogomphus hopei.

Heterogomphus Hopei, Burm. Handb. der Ent. v. p. 231 S
Hab. Mexico 1.

Unknown to me.

DiEMONOPLUS.

Hamonoplus, Thomson, Archiv. Entom. ii. p. 68 (1858) .
Heterogomphus, Gemminger & Harold, Cat. Col. iv. p. 1262 (1869) .

This genus is limited, at present, to the following species, which Thomson, in
describing it, believed to be from the Gaboon. Gemminger and Harold included it in
the genus Heterogomphus ; it has, however, well-marked peculiarities which render it
advisable to retain the genus formed for its reception. In the form and dentition of
its anterior tibise in both sexes it comes much nearer to Podischms, and the females
are not easy to be distinguished from the same sex of certain species of Golofa.

328 LAMELLICOENIA.

1. DaBmonoplus mniszecM. (Tab. XIX. figg. 10, 10 a, s; 11, $ .)

Dcemonoplus Mniszechii, Thorns. Archiv. Entom. ii. p. 69^ t. 2. fig. 2.
Heterogomphus MniszecM, Gemm. & Har. Cat. Col. iv. p. 1262 \

Eah. Mexico 1; Costa Eica {Van Patten) ; Panama, Volcan de Chiriqui 4000 feet

(Champion).

$ . Frons unituberculata ; thorax simplex, prope marginem anticum breviter bituberculatus, dimidio anteriore
punctato-rugosus.

The anterior tibiae have four rather fine sharp teeth, and the terminal tooth is formed
like the others, and not broad and almost duplicated as Burmeister states of H. hopei.
The apical rim of the hindmost tibiae has four very short teeth, and that of the middle
tibiae one very long and sharp projection which is bidenticulate on one side. In these
points, and in the three slender, equal, and obliquely elevated thoracic horns of the
male, the species also differs from H. hopei.

A male from Costa Rica and a female from the Volcan de Chiriqui are figured.

ENEMA.

Enema, Hope, Col. Man. i. p. 83, t. 1. fig. 2 (1837); Burmeister, Handb. der Ent. v. p. 233;
Lacordaire, Gen. Col. iii. p. 439.

A genus confined to the tropical zone of America. Six species have been described.

1. Enema infandibnlum.

Scarabeeus Enema, Fabr. Mantissa Ins. i. p. 4 (1787) ; Syst. Ent. i. p. 6 ; Oliv. Ent. i. 3, p. 22^

t. 12. fig. 114, t. 17. fig. 157.
Enema infundihulum, Burm. Handb. der Ent. v. p. 234 \

Eah. NiCAEAGUA, Chontales {Belt, Janson). — South Ameeica to South Brazil i and
Paraguay.

One male and one female example ; considerably smaller than those found commonly
Guiana and on the Amazons.

2. Enema pan. (Tab. XIX. figg. 12, 12 a, S, var.)
Scarabmis Pan, Fabr. Syst. Ent. i. p. 6 ' ; Perty, Del. Anim. Art. Bras. p. 44, t. 9. fig. 10 ( 3^ ).
Enema Pan, Burm. Handb. der Ent. v. p. 235^.
Scarabaus Titornus, Perty, loc. cit. p. 45, t. 9. fig. 12 {^ minor).
Scarabaus quadrispinosus, Fabr. Species Ins. i. p. 11; Oliv. Ent. i. 3, p. 35, t. 19. fig. 179 ( ? ).

Eah. Mexico, Toxpam {Salle), Jalapa {Edge) ; Nicaragua, Chontales {Belt, Janson),
— South Ameeica to South Brazil ^ ^ and Paraguay.

Yar. <S . Cornu capitis postice sine tuberculo.

Enema lupercus, Chevr. in Guer. Mag. Zool. 1843, Col. Mex. p. 28 \
Scarab(sm aeneas, Kirby, Trans. Linn. Soc. xii. p. 399 '^P

Eah. Mexico!, Cordova {Salle), Jalapa (iTo^e).— South America, Colombia^, Paraguay.

ENEMA.— STKATEaUS. 329

All gradations in the size of the tubercle on the hinder side of the horn of the male
are found when a large series is examined. Its absence is simply a sign of lower
sexual development. I do not remember to have seen the var. lujpercus in the Amazons
region, where E. ;pan is rather common, and where it is twice the size of the largest
Mexican and Paraguayan examples that I have seen. Females of both forms do not
differ, except in their very much smaller size, from the same sex of E. infundihulum,
with which E. pa7i in the equatorial zone of America is always associated. These
curious facts of distribution and development of male horns according to latitude make
it extremely probable that E. infundihulum as well as E. jian and E. lupercus are only
varying forms of development of one and the same species, the development being of
size in both sexes, and of length and form of cephalic and thoracic horns in the male.

A male example from Cordova of the var. lupercus is shown on our Plate.

3. Enema endymion. (Tab. XIX. figg. 13, 13 a.s .)

Enema Endymion, Chevr. in Guer. Mag. Zool. 1843, Col. Mex. p. 29 \
Enema Lupercus, Burm. Handb. der Ent. v. p. 236 (nee Chevrolat) '.

Hah. Mexico 1 2, Tuxtepec {Salle), Jalapa [Edge), Oaxaca (Fenochio) ; Beitish
HoNDUEAs {Blancaneaux) ; Guatemala, Panzos {Champion); Nicaeagua, Chontales
{Belt, Janson) ; Costa Rica, Cache {Rogers) ; Panama, Volcan de Chiriqui {Champion),

A very distinct species, widely distributed, but apparently not common. It was
well described by Chevrolat in both sexes, but subsequently mistaken for E. lupercus
by Burmeister. The elytra are always rufo-castaneous, and the thorax unarmed in
both sexes, the latter being gibbous on the posterior disc, and minutely shagreened
(with some larger punctures) in the male, moderately convex, and more coarsely sculp-
tured in the female. E. endymion is smaller and of a narrower oblong shape than
E. pan, and the thorax is more regularly arcuated on the sides, the curve continuing to
the anterior angles, which are acute, but not produced as in E. pan. The Venezuelan
E. p)aniscus, Burm., is a closely allied species, or local form, in which the thorax in the
male is smooth and highly polished in the middle.

We figure a male example from Tuxtepec.

STRATEGUS.

Strategus, Hope, Col. Man. i. p. 87, t. 1. fig. 5 (1837); Burmeister, Handb. der Ent. v. p. 128;
Lacordaire, Gen. Col. iii. p. 440.
This genus is exclusively American, and found in the temperate zones north and
south, as well as in the tropics and the West Indies. Seventeen species have been
described, three of which inhabit Central America *.

* The Munich Catalogue includes Mexico in the localities of 8. antcem, but I have not seen a Mexican
specimen. Dr. Horn, in his paper on the E'orth-American Strategi, gives Texas as the southern limit of the
range of S. antceus.

BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, BecemUr 1888. 2 UU

330 LAMELLICOENIA.

1. Strategus jugurtha.

Strategus Jugurtha, Burm. Handb. der Ent. v. p. 131 ^

Hob. NiCAEAGUA, Chontales {Belt, Janson). — Colombia i.

Distinguished by its acuminated clypeus in both sexes, and the three long and slender
horns of the male,

2. Strategus cessus.

strategus cessus, Leconte^ Proc. Acad. Phil. 1866^ p. 382 ^ ; Horn, Trans. Am. Ent. Soc. v. p. 146

(1875) ^

Hah. NoETH Ameeica, Arizona ^ ^. — Mexico, Northern Sonora (Morrison).

3. Strategus julianus. (Tab. xix. figg. 14, 14 a, 15, 15 «, c? .)

strategus Julianus, Burm. Handb. der Ent. v. p. 133 ^ ; Horn, Trans. Am. Ent. Soc. v. p. 144

(1875) ^

Hah. NoETH Ameeica, Georgia ^. — Mexico i ^, Hacienda de Bleados in San Luis
Potosi (Dr. Palmer), Orizaba, Oaxaca, Playa Vicente, Chiapas (Salle), Jalapa, Mexico
city (Hoge), TemB,iL in North YucsitRn (Gaumer) ; Beitish Hoi^bvuas (Blancaneaiix) ;
Guatemala (Salle), near the city (Salvin), Champerico, Escuintla, Capetillo, Zapote,
Panzos, Coban (Champion)', Hondueas, Ruatan I. (Gaumer); Nicaeagua, Chontales
(Belt); Costa Rica (Van Patten), Cache, Volcan de Irazu 6000 to 7000 feet (Bogers);
Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). — South Ameeica, Colombia
(coll. Bates).

The very numerous examples examined include the variations in the anterior thoracic
horn of the male (notched or simple), and in the smooth or rugose thoracic cavities,
mentioned by Burmeister, together with others not recorded by that author in the
general form and colour, and in the number of teeth on the apical rim of the posterior
tibise. Some examples are remarkably broad, and in consequence differ from the
majority in the greater vi^idth between the posterior horns of the thorax, and some are
wholly pitchy-black in colour. The dentition of the apex of the posterior tibiae usually
consists of three teeth, the inner one much smaller than the others, and (apparently by
aberration) sometimes wanting or resolved into two smaller teeth. All examples of the
male agree in the more or less broadly triangular emargination of the front edge of
the clypeus ; and this seems to be the sole character which distinguishes the species
from the South-American S. aloeus (Linn.), of which Linnaeus in his original description
(Mus. Lud. Ulr. p. 7) says, " Caput depressum, obtusissimum, angulis reflexis," and
Burmeister, " deren vorderes Kopfende stumpf, beim mannchen mehr abgestutzt,
scharfkantig." The female of ^iS'. julianus does not appear to differ from that of
S. aloeus, the clypeus being much narrower than in the male, and obtusely truncated
at the apex.

STRATEaUS.— PODISCHNUS. 331

I cannot corroborate Burmeister's statement that the base of the anterior thoracic
horn is always continued behind as an obtuse ridge along the middle of the thoracic
cavity, dividing the latter into two deep pits ; or that this is an important difference
between S.julianus and S. aloeus. On the contrary, I have seen examples of S.julianm
in both the larger and the minor developments of the male in which the ridge, except
just at the commencement, is scarcely perceptible.

We figure a fully-developed male example from Mexico city, and a male minor from
N. Yucatan. •

Subfam. LYNASTIN^.

PODISCHNUS.

Podischnus, Burmeister, Handb. der Ent. v. p. 237 (1847) ; Lacordaire, G-en. Col. iii. p. 438.
Mixigenus, Thomson, Arcana Naturae, p. 7 (1859) .

Two species only are known of this genus, restricted to Central America and the
northern part of South America.

Burmeister describes the singular comb-like dentition of the rounded maxillary lobe
quite correctly ; but at the apex of the mentum, which he says is broad, he has over-
looked the curious deflection of the true apical part of the ligula, which is triangular,
and bends downwards at right angles.

1. Podischnus agenor. (Tab. XIX. figg. 16, Ua, 17, lla, 18, 18^, d ; 19, ? .)
Scarabaus Agenor, Oliv. Ent. i. 3, p. 178, t. 27. fig. 241.
Podischnus agenor, Burm. Handb. der Ent. v. p. 238 \
ScarabcBus barbicornis, Latreille, in Humb. & Bonpl. Obs. Zool. i. p. 201, t. 22. fig. 1 2.

JEah. Mexico 2; British Hondukas (^/a^zca^ze^w^) ; Guatemala, Escuintla( 6%«mp^o^);
Nicaragua, Chontales [Belt); Panama, Lion Hill (MGLeannan).—^omB. America,
Colombia 1, Upper Amazons. . .

The male exhibits numerous gradations of form, affecting the shape of both the
cephalic horn and the curious thoracic elevation — half-moon shaped at the summit,
and clothed with tawny hairs beneath — and also the sculpture of the anterior part of
the thorax. The principal gradations are as follows : —

1. Cephalic horn greatly elongated, and armed behind with a broad tooth.

2. The horn shorter, and the posterior dentiform thickening scarcely perceptible.

3. The horn only half as long again as the head, simple, acute ; thoracic horn only
slightly elevated, but broad, emarginated, and hairy beneath {8. barbicornis, Latr.).

4. The horn much shorter than the head ; the thoracic elevation forming only a
slight prominence, with a hairy fovea in front of it.

2 UU 2

332 LAMELLICOENIA.

5. The horn still shorter ; the thoracic elevation advanced nearer to the front margin,
with a glabrous fovea in front.

Fairmaire has proposed (Rev. et Mag. Zool. 1878, p. 266) to reverse the decision of
Eeiche, who referred Scarahmus larUcornis, Latr., to the prior S. agenor of Olivier,
and to regard it as synonymous with Podischnus tersander, Burm. In this I cannot
help disagreeing with him, as the description and figure of Latreille apply exactly to
the minor development described above (No. 3) of P. agenor, and do not at all agree
with the other species. Fafrmaire appears to have been misled chiefly by the simple
and flattened (from front and rear) cephalic horn of Latreille's figure ; but this is the
condition of the horn of P. agenor in minor developments, and the base is similarly
flattened even in fully-developed males. As to the general form of the body, the figure
of Latreille is that of an elongate-oblong insect like P. agenor, and not of a short and
posteriorly-dilated species like P. tersander. The thoracic horn of the figure is also
, totally unlike the form assumed by P. tersander in any of its developments.

We figure two males from Ch on tales, and a male minor and a female from Lion
Hill, Panama.

2. Podischnus tersander. (Tab. XX. figg. 1, la, s; 2,2 a, 2 .)

Podischnus Tersander, Burm. Handb. der Ent. v. p. 239 \

Mixigenus Leander, Thorns. Arcana Naturae, p. 7 ^.

Miwigenus barbicornis, Fairm. Eev. et Mag. Zool. 1878, p. 266 (nee Latr.) ^.

JIah. Mexico ^ ^ s^ Orizaba (Salle) ; Nicaeagua, Chontales (Pelt).

Fairmaire retains Thomson's genus Mixigenus for this species, but does not specify
the points of structure in which it diflers from Podischnus. The two species, in fact,
agree unusually well in all characters on which genera are founded in Dynastidae. The
structure and armature of the legs are strikingly homogeneous, especially the sharply-
toothed (instead of bristly) transverse ridges of the four hinder tibiae.

We figure a male and a female from Orizaba.

GOLOFA.

Golofa, Hope, Trans. Ent. Soc. Lond. ii. p. 42 (1837) ; Burmeister, Handb. der Ent. v. p. 246;
Lacordaire, Gen. Col. iii. p. 443.

This fine genus, one of the most remarkable forms of Dynastidae found in the New
World, is widely distributed over the tropical zone of the American continent, and is
recorded, though possibly in error, as found in Chili. Fourteen species have been
described ; but some of them are founded on varieties, the species being subject to
more than the usual range of modification as regards the shape of the horn-like
processes of the head and thorax, and the size and colour are equally variable.

GOLOFA. 333

1. Golofa pizarro. (Tab. XX. figg. 3, 3«, s ; 4, 4«, 5, 5«, 6, Qa,7,7a, 6 var.)
Golofa Pizarro, Hope, Trans. Ent. Soc. Lond. ii. p. 44 ((^)\
Golofa hastatus, Burm. Handb. der Ent. v. p. 247 (c? ? ) (nee Fabr.) ^
Golofa Sallei, Thorns. Mus. Scient. i. p. 39 (1860) ^
Golofa clavicornis, Thorns, loc. cit. p. 40 *.

Hah. Mexico 12 34^ Mazatlan, Tuxtla, Cordova, Toxpam, Tanetza, Parada {SalU),
Jalapa {H'oge) ; Guatemala (Salle), Coban and Tactic in Vera Paz, Tepan [Conradt).

The examination of a very large series of this species, mostly from Jalapa, shows
that it is extremely variable in the male sex, not only in colour and sculpture, but in
the length, form, and sculpture of the thoracic horn ; and, in fact, that no two examples
fairly agree. The females, on the contrary, are, as nearly as possible, alik^ in form,
colour, and sculpture, and differ only in size. In fully-developed males, the apex of
the thoracic horn is always curved forward, and dilated into a broad and more or less
tridentate plate. Those examples in which the horn is very long form the G. sallei of
Thomson, and these vary in the horn being sometimes inclined backwards, in the
dilated apex, double the width in some examples that it is in others, obtusely carinated
above or marked with an impressed line, and in the length of the three teeth, the
anterior one being sometimes very much reduced, so that the front of the club is
nearly truncated, and sometimes short and notched. Males of all developments, in
which the thoracic horn is strongly punctured, form the G. clavicornis of Thomson ;
but the non-validity of this species is shown by the facts that all the males of low
development, with short subcylindrical thoracic horn, have the horn coarsely punctured,
and that the coarsely-punctured horn does not correspond with coarsely-punctured
elytra (as Thomson aversj ; moreover, every gradation is present, in a large series, with
regard to the punctuation of the horn ; and all were found together by Herr Hoge in
the same locality.

The general colour of the male varies from testaceous-yellow, through castaneous to
sooty-black, the thorax in the yellower examples being generally more or less clouded
with brown, and very rarely wholly brown. The underside of the body and legs also
vary from yellowish or reddish-testaceous (with all articulations and tarsi darker) to
sooty-black. The head entirely and thoracic horn are always black. The suture and the
extreme lateral margin of the elytra in the yellower examples are dusky. The females
are wholly black, moderately shining, and coarsely subconfluently punctured, and are
difficult to be distinguished from the similarly-coloured females of allied species. The
entire upper edge of the mandibles (in which they agree with the males) is the chief
differentiating character ; the colour of the pubescence on the under surface is tawny
cinereous, scarcely rufescent as Burmeister gives it, and quite different from the foxy-
red hue which distinguishes the very similar female of G. championi.

G. hastatus (Castelnau), referred to this species by Burmeister, seems to me to belong
to 0, iTrvperialis. The form of the thoracic horn described is that of the undeveloped

334 LAMELLICOENIA.

male ; but the size (17 lines) and the length of the cephalic horn are not those of this
class of male in G. pizarro, though agreeing well with G. im;perialis.

We figure a fully-developed typical male from Tuxtla, and four others of the same
sex of the var. clavicornis, from Toxpam, Cordova, and Jalapa, showing the different
developments of the cephalic and thoracic horns, and also the variation in the sculpture
of the upper surface.

2. Golofa imperialis. (Tab. XX. figg. 8, 8 «, 9, 9 a, 10, 10 a, 6 .)

Golofa imperialis, Thorns. Ann. Soc. Ent. Fr. 1858, Bull. p. cxlvij Arcana Naturae, p. 10, t. 1.

figs. 1,2 (c? ?)\
Golofa Incas, Hope, Trans. Ent. Soc. Lond. ii. p. 43 ? ^.

Hob. Mexico 12 [Sturm, in coll. Salle), Capulalpam, Cuernavaca, Duraznal (Salle);

Guatemala [Salle).

Evidently very closely allied to G. pizarro, but probably specifically distinct. It is
larger, and the largest examples of the male (46 millim.), which, judging from the
long cephalic horn, are of full development, have a thoracic horn with parallel sides
bent forward and pointed at the apex, and therefore different in shape from either the
major or the minor males of G. jpizarro ; in the male minor the thoracic horn is reduced
to a thick and very obtuse tubercle. The surface is more finely punctured, and the
suture and lateral margins of the elytra are blacker, the thorax in some examples spotted
with black, and the humeral angles of the elytra and the scutellum also black. The
female is entirely black. In both sexes the apical edge of the mandibles is sometimes
faintly (in the female more sharply) notched towards the inner angle, a character which
distinguishes the species from G. pelagon and G. oegeon, in which the mandibles are
bifid.

Hope's description of the male of his G. incas, especially with regard to the thoracic
horn, " thorax cornu erecto, brevi, apice acuto," scarcely applies to G. iyivperialis, and
that of the female is still less applicable. I have seen no Golofa, $ , from Mexico of the
colour he describes ; but the present species is named G. incas in the Salle collection.

We figure a well-developed male from Mexico [coll. Sturm), and a male minor from
Duraznal and another from Guatemala.

3. Golofa costaricensis. (Tab. XX. figg. il, li a,6.)

(S . G. imperiali proxime affinis ; minor et angustior, elytris cinnamomeo-flavis (sutura leviter infuscata), subti-
lissime punctatis, sericeo-opacis, versus suturam subnitidis, thorace rufiore ; mandibulis apice latis juxta
angulum interiorem obtuse leviter incisis ; corpore subtus cum femoribus longe et dense fulvo-griseo
pubescenti. Tarsi antici articulo basali sequenti duplo longiore (nee sicut in G porteri longissimo).
S (major?). Cornu capitis valde elpngatum, gracile, postice rugosum et dentatum ; cornu thoracis quam in
- G. imperiali altius et gracilius, versus apicem pauUulum sensim dilatatum, apice antice curvatum obtusum
vel obtuse acuminatum. Tarsi 4 postici baud incrassati nee subtus dense pilosi.
Long. 38-44 millim.

GOLOFA. 335

c? minor. Cornu capitis brcvissimum acutum, thoracis obtusissime tuberculiforme. Thorax undique sat

dense et grosse punctatus punctis circularibus. • .

Long. 32 millim.
2 ignota.

Eab. Costa UiCA (Van Patten), Uio Sucio (Borers).

Although in structure this species comes nearer to G. imperialism it bears a greater
general resemblance to the Venezuelan and Peruvian G. cegeon ; from the latter it diflfers
in its more cinnamon-tawny hue and less distinct black suture and margins, and in the
form of the thoracic horn in the different developments of the male, the horn in G. cegeon
being strongly compressed laterally in all stages, except the somewhat dilated apex of the
most highly-developed individuals. The basal joint of the anterior tarsi is short (not
longer than the second) in G. cegeon ; the hind tarsi robust and densely hairy beneath,
and the mandibles narrow and bifid. A well-developed male is shown on our Plate.

4. Golofa Championi. (Tab. XX. figg. 12, 12 a, 13, Ua,6; 14, 14 a, $ .)

cJ . Quoad corporis formam G. cegeoni similis, sed thorace fere inermi etc. valde differt. Supra fulvo-castanea,
thorace t'usco-nigro nebuloso, elytris vage fusco-nigro vittatis sutura et margine fuscis, capite, corpore
subtus pedibusque fuligineo-nigris, pectore et femoribus flavo-cinereo villosis ; thorace disperse disco
posteriore confertim punctato, elytris irregulariter striato-punctatis. Tibiae anticse sicut in Golofis tyjjicis
tridentatjB, intermedin medio extus unispinosse apice extus valide bidentatse, posticse medio et apice
inermes ; tarsi antici articulo basali 2° dimidio longiore, postici subtus brevissimo setosi. Mandibulas
apice intus indentatae, interdum subiissse.

S major. Cornu capitis mediocriter elongatum, gracile, recurvum, postice punctatum, basi et capite longe
pilosis. Cornu thoracis breve, compressum, acutum, oblique elevatum, antice et sulco thoracis anteriore
longe pilosis.

S minor. Cornu capitis brevissimum, thorace inerme, antice medio fovea longe pilosa.

5 . Nigra, nitida, elytris fere sicut in G. pizarro $ dense punctatis, clypeo magis elongato ; subtus dense
vulpino-rufo pubescens. Tibiae anticse 4-dentat8e, intermedise sicut in <S , posticse medio et apice brevis-
sime dentatse.
Long. 34-42 millim. c? $ .

Eah. Guatemala, Cerro Zunil 4000 to 5000 feet [Chamjpion).

Fifteen examples of the two sexes. The male minor agrees in many respects with
the description of G. inermis, Thoms. Arcana Nat. p. 11, but the size (21-28 millim.)
and locality (Chili) and some minor discrepancies lead me to conclude that the species

are different.

We figure a well-developed male, a male minor, and a female, all from Cerro Zunil.

5. Golofa imbellis. (Tab. XX. figg. 16, IQa^s-, 18, 18 a, 2.)

Q. championi affinis ; corpore postice magis ampliato ; omnino castaneo-nigra, $ nigra nitida, subtus corpore

toto cum propygidio et pygidio vulpino-rufo pubescentibus; thorace sat crebre,hic illic confertim, punctato ;

elytris sericeo-opacis subtiliter punctulatis, hie illic substriatis, versus suturam rugoso-punctatis et niti-

dioribus. Pedes sicut in G. championi. Mandibulee apice integrse.
cJ major. Cornu capitis brevissimum, capite postice vulpino-piloso. Thorax nuUo modo cornutus, medio antice

leviter carinatus et juxta marginem fovea dense vulpino -pilosa.
(S minor. Caput unituberculatum, thoraceque antice baud carinato.

335 LAMELLICORNIA.

$ . Nigra, nitida, fortius et crebrius quam in G. championi punctata, elytris utrinque striis punctatis gemiiiatis

tribus.
Long. 35-48 millim. c? 5 . •,

Hah. Costa Rica {Salle, Van Patten), Volcan de Irazu 6000 to 7000 feet, Rio Sucio
{Mogers).

Seventeen examples.

DYNASTES. - ;

Dynastes, Kirby, Trans. Linn. Soc. xiv. p. 568 (1825); Burmeister, Handb. der Ent. v. p. 256;

Lacordaire^ Gen. Col. iii. p. 444.
Theogenes, Burmeister, Handb. der Ent. v. p. 254 (1847').

Four species have been described of this genus, comprising the grandest forms of the
Dynastidae group ; all are American, the two belonging to the northern continent being,
however, scarcely more than local forms of one stock.

1. Dynastes hercules.

Scarab(Eus Hercules, Linn. Syst. Nat. i. p. 541 ; Mus. Lud. Ulr. p. 3 ; Oliv. Ent. i. 3, p. 6, t. 1. f. 1

( c?), t. 23. f. 1 ( ? ); Burm. Handb. der Ent. v. p. 257 \
Scarabaus scaber, Linn. Mus. Lud. Ulr. p. 17 ( ? ).

Scarabceus Alcides, Fabr. Mant. Ins. i. p. 3 ; Oliv. Ent. i. 3, t. 1. fig. 2 ( (J minor).
Scarabaus Perseus, Oliv. Ent. i. 3, t. 1. f. 3 {^ minor).

Hah. Guatemala (Champion) ; Nicaeagua, Chontales (Belt); Costa B.ica (Van Patten);
Panama, Bugaba, Dolega in Chiriqui (Champion). — Teopical South Ameeica^; West
Indies i.

This species is apparently very rare in Central America. In Guatemala and the State
of Panama Mr. Champion only obtained fragments of male examples.

2. Dynastes hyllus. (Tab. XX. figg. 17, 17«, c? .)

Dynastes hyllus, Chevr. Guer. Mag. Zool. 1843, Col. Mex. p. 33, t. Ill (cJ), t. 112 ( ? ) \
Dynastes Iphiclus (Panz.), Burm. Handb. der Ent. v. p. 259 ^.

ffab. Mexico ^ ^, Toxpam, Oaxaca (Salle), Jalapa (Hoge), Acapulco (Baron) ; Guate-
mala (Salle), Escuintla (Conradf).

A male minor from Oaxaca is figured.

MEGASOMA.

Megasoma, Kirby, Trans. Linn. Soc. xiv. p. 566 (1825) ; Gemminger & Harold, Cat. Col. iv. p. 1268.
Megalosoma, Burmeister, Gen. qused. Ins. fasc. 7. c. tab. ; . Handb. der Ent. v. p. 273.

The range of the gigantic beetles constituting this genus is the same as that of
Dynastes, except that they do not appear to occur in the West India Islands. Eight
species are described.

MEGASOMA.— LYCOMEDES. 337

1. Megasoma elephas.

Scarabaus elephas, Fabr. Syst. Ent. i. p. 7; Oliv. Ent. i. 3, p. 11, t. 15. fig. 138.
Dynastes elephas, Chew. Guer. Mag. Zool. 1843, Ins. Mex. p. 31, t. 109 ((^), t. 110 ( ? ) '.
Megalosoma elephas, Burm. Handb. der Ent. v. p. 275^.
Megasoma elephas, (jqthvo.. hUox. C&t.'w. ^.12Qd)^.

Hob. Mexico 2, Alvaradoi, Cordova {Salle), San Blas^; British Honduras, Cayo
(Blancaneaux) ', Guatemala^, Champerico (Champion); Honduras, Ruatan Island
(Gaumer) ; Costa Rica (Van Patten); Panama, Bugaba, David (Champion).

In Chiriqui, according to native report, this species is sometimes found in numbers
about mango-trees when in fruit (Champion).

Suhf^m. AGAOCEPEALIFM "

iEGOPSIS.

jEgopsis, Burmeister, Handb. der Ent. v. p. 281 (1847) ; Lacordaire, Gen. Col. iii. p. 451.
Agacephala, Westwood, in Partington's Brit. Cycl. Nat. Hist. i. p. 372, tab. (1835) (nee Serville).

Two species of this • distinct genus are known, one from Colombia, the other from
Brazil.

1. .ffigopsis curvicornis.

Agacephala curvicornis, Westw. in Partington's Brit. Cycl. Nat. Hist. i. p. 372, tab.'
jEgopsis curvicornis, Burm. Handb. der Ent. v. p. 282 ^ ; Lacord. Gen. Col. Atlas, t. 37. figg. 3,
3«; Thorns. Mus. Scient. i. p. 17 (1860).

Hal. Panama (Boucard), Taboga I. (/. J. Walker).— Colombia 12.

LYCOMEDES.

Lycomedes, De Breme, Ann. Soc. Ent. Er. 1844, p. 298 ; Burmeister, Handb. der Ent. v. p. 285 ;
Lacordaire, Gen. Col. iii. p. 452.
A genus apparently confined to Central America and the north-western parts of
Tropical America ; one species is stated to be from Mexico. Four species have been
described. J .

1. Lycomedes mniszechi. (Tab. xxi. figg. i, l «, d .)

Lycomedes Mniszechii, Thomson, Mus. Scient. i. p. 16, t. 6. fig. 1\

Sab. Mexico ^ ; Nicaragua, Chontales (Janson) ; Panama, Volcan de Chiriqui 4000
to QOOO feet (Cham^iion).

Our collections do not contain a specimen of this species from Mexico, and only one
(male) from Chontales, but Mr. Champion obtained a fine series in Chiriqui. The
BIOL, centk.-amek., Coleopt., Vol. II. Pt. 2, March 1889. 2 XX

338 LAMELLICOENIA.

male, from Mexico, described and figured by Thomson measured 44 millim., although,
judging from the rudimentary state of the tubercle on the posterior side of the cephalic
horn, it is not of the highest development of the sex ; examples of similar development
from Chiriqui are only 34 millim., and others of higher stage, in which the tubercle on
the cephalic horn is distinct, acute, and situated nearer the middle of the horn, and in
which the thoracic horn is of relatively much greater length than in Thomson's speci-
men, measure only 40 millim. All the examples, nevertheless, agree in other respects
with the figure above cited.

The species is distinguished from the three described from South America by the
long, slender, pointed thoracic horn, which projects subhorizontally beyond the apex of
the porrected cephalic horn.

The males, as they decrease in development, lose all trace of posterior tubercle on
the cephalic horn, and in the lowest stage both that and the thoracic horn are
extremely short (about 2 millim.), both still preserving the shape and direction charac-
teristic of the species. ,

2. Lycomedes beltianus. (Tab. XXI. figg. 4, 4 «;, <?.)

L. mniszechi affinis, elytris medio magis explanato-dilatatis, tomentoque cinereo magis sericeo et variegato.
S . Cornii capitis apice acutum, postice infra apicem tmituberculatum et prope basin tubercnlo majore ;
cornu thoracis oblique elevatum, apice acutiiin, antice versus basin tuberculo lato, compresso ; tarsi antici
ungue majore sicut in L. mniszechi deflexo, medio subtus dilatato basique acute dentata.

Long. S 32 millim. ; ? 28 millim.

Hob. Nicaragua, Chontales {Belt).

One pair only. Lycomedes reichei- has a totally different form of thoracic horn.

Suhisim. PEILEUBIW^.

PHILEUKUS.

PMleurus, Latreille, Gen. Crust, et Ins. ii. p. 103 (1807) ; Burmeister, Handb. der Ent. v. p. 148;
Lacordaire^ Gen. Col. iii. p. 456.

A well-known genus, of wide distribution in tropical and temperate regions through-
out the globe, but absent from Europe, including the Mediterranean subregion, Aus-
tralasia, and Chili. P. subcostatus, Casteln., from Australia, belongs to the genus
Semanopterus. The great majority of the species inhabit the Tropical and the warmer
temperate zones of America.

I. Outer apical angle of the posterior tihiw not spiniform.

1. Phileurus cribrosus.

PMleurus cribrosus, Leconte, Proc. Ac. Phil. 1854, p. 80 ; Journ. Ac. Phil. iv. 1858, t. 4. fig. 19 ' ;
Horn, Trans. Am. Ent. Soc. viii. p. 147, t. 3. fig. 6 (1880)2.

PHILEUEUS. / 339

E.ah. North America, New Mexico i, Texas 2. — Mexico, Nuevo Laredo in Tamaulipas,
Villa Lerdo in Durango {Edge), Monclova in Coahuila (Br. Palmer).

Allied to P.fimhriatus, Burm., from S. Brazil and Uruguay. The elytra are shorter
and more rounded than in the typical Phileuri, and very coarsely striate-punctate. The
head bears no trace of horns, but is transversely carinated. In the male the pygidium
is conically convex, in the female plane. The size varies from 14 to 16 millim.

2. Phileurus simplex.

Oblongus, nigro-nitidus, sternis breviter vulpino-rufo pubeseentibus pedibusque piceis ; capite tenuiter arcuatim
strigoso, clypeo acute reflexo, fronte bituberculata extus nullo modo carinata, cantho oculari subito
rotundato-dilatato ; thoracis lateribus cum angulis posticis sat rotundatis, sulco dorsali punctato nee
apicem nee basin attingente, antice nee tubereulato, disco anteriore sparse punctato, csetero Isevi ; elytris
regulariter sat grosse punctato-striatis, apice confuse grosse punctatis. Tibiae anticse tridentatae, 4 posticae
carinis et apice breviter spinoso-setosis nee dentatis, apice extus tantum obtuse producto ; tarsi postici
articulo basali extus longe spinoso. $ . Pygidium medio transversim valde gibbosum, sparse grosse
punctatum.

Long. 22 millim. $ .

Hah. Nicaragua, Chontales (Belt, Janson).

Two female examples. The species is closely allied to P. vervew, Burm., but diflPers
from it in the head above being nearly plane and without carinas connecting the frontal
tubercles with the sides and apex of the clypeus. The pubescence beneath is also
much shorter and thinner.

II. Outer apical angle of the posterior tihice spiniform.
A. Anterior tihice tridentate.

3. Phileurus IsBvicauda. (Tab. xxi. fig. 3, ^ .)

p. clejpresso proximo affinis, diifert ventris segmento apicali fere Isevi pygidioque grosse punctato. Oblongus, nigro-
nitidus, subtus pronoti lateribus solum rufo-hirtis ; capite grosse punctato, clypeo acuminato-reflexo, fronte
tuberculis compresso-conicis duobus, cantho oculari lobiformi capitisque lateribus ante canthum acute
angulatis ubi carina a basi tuberculi desinit ; thorace grosse punctato, disco utrinque et basi Isevibus, sulco
dorsali multo abbreviate punctato ; elytris regulariter punctato-sulcatis, striola scutellari nulla ; pectoris
lateribus coxisque posticis grosse umbilicato-punctatis. Pygidium grosse punctatum, S mediocriter con-
vexum, $ planum ; segmento ultimo ventrali basi solum punctato. Tibiae 4 posticae medio et apice spina
elongata et valida.

Long. 22 millim. c? $ •

Hah. Mexico, Tapachula in Chiapas (Hoge) ; Guatemala, El Reposo, Teleman in
YerviVdiT. (Champion).

4. Phileurus ?

^5. Mexico, Playa Vicente (^/^^). <

A single old and worn example of a species which may be a variety of the Colombian

2XX2

340 LAMELLICOENIA.

P. variolosus, Burm., from which it differs only in the punctures being smaller, and on
the thorax less close and evenly distributed.

5. Phileuras cylindroides. (Tab. XX. figg. 15, 15 a, s .)

Angustior, elongatus, subcylindricus, nigro-nitidTis, prosterno subtus vulpino-pubescente ; capite basi c? impunc-
tato, polito, 2 rugoso-punetato, clypeo acuminato-reflexo, cantho oculari lobato et anterius utrinque angu-
lato, fronte in c? erecte bicornuta, in $ tuberculis duobus latis conicis; thorace plus minusve grosse
annulato-punctato, sulco dorsali lato, grosse confluenter punctato, basin versus plerumque Isevi, margine
antico baud tuberculato ; elytris punctato-sulcatis, punctis grossis et umbilicatis, interdum minoribus et
sulcis minus profundis hinc interstitiis latioribus ; sternis et coxis posticis grossissime discrete punctatis.
Pygidium grosse punctatum, ^ valde convexum, $ fere planum ; segmentum apicale ventrale irapunc-
tatum.

Long, 18-21 millim. c? 2 •

Hab. Beitish Honduras, R. Sarstoon {Blancaneaux) -, Guatemala, Capetillo {Cham-
pion) ; Costa Rica, Volcan de Irazu 6000 to 7000 feet, Rio Sucio {Bogers) ; Panama,
Bugaba, Volcan de Chiriqui 4000 to 6000 feet {Champion).

A male from Rio Sucio is shown on our Plate.

6. Phileurus dejeani. (Tab. XX. figg. 19, 19 «, e .)

p. depresso affinis, sed convexior, elytromm interstitiis alternis valde elevatis etc. Elongato-oblongus, sat con-
vexus, nigro-nitidus, femoribus rufo-piceis ; capite S antice fere laevi, 5 grosse alveolato-punctato, clypeo
acuminato-reflexo carinis postice divergentibus validis, cantbo oculari subquadrato prominente denteque
anteriore valido, fronte S cornibus duobus brevibus erectis, 5 tuberculis basi dilatatis subconicis;
thorace grosse et antice dense umbilicato-punctato sulcoque dorsali profundo, lato et grosse confluenter
punctato, margine antico baud tuberculato; elytris grossissime umbilicato-punctato-striatis, interstitiis
3° et 5° elevatis et incrassatis, 2° et 4° apud basin solum elevatis postice depressis et angustatis ; meta-
sterno fere toto sat grosse punctato. Pygidium grossissime punctatum, c? et $ paullo convexum ; seg-
mentum apicale ventrale basi tantum punctulatum ; tibiae 4 posticse extus spinis mediana et apicali latis.

Long. 17-23 millim. c? $ •

Hab. Mexico, Cordova, Toxpam {Salle), Jalapa {Hoge) ; Guatemala, Cerro Zunil
{Champion).

I have adopted the MS. name given to this species in the Salle collection. It is very
closely allied to P. cylindroides, but is distinguishable in all the numerous examples by
its costate elytra, as well as by its broader and more robust form. P. dejeani is not
much more convex than P. valgus or P. depressus.

We figure a male example from Toxpam.

7. Phileurus truncatus.

ScarahfBus truncatus, Palisot de Beauvois, Ins. Afr. et Amer. p. 41, t. 1 b. fig. 4.
Phileurus truncatus, Burm. Handb. der Ent. v. p. 157^; Horn, Trans. Am. Ent. Soc. viii. pp. 147,
148(1880)2.

Hab. NoETH Ameeica i, from North Carolina southward ^. — Mexico, Cordova {SallS).

There is only one example of this species in the Salle collection, others also labelled
P. truncatus being the superficially very similar P. quadrituberculatus.

PHILETJEUS. 341

B. Anterior tibim quadridentate.

8. Phileurus didymus.

Scarab(EUs didymus, Linn. Syst. Nat. i. 2, p. 545 ; Oliv. Ent. i, 3^ p. 42, t, 2. fig. 9.
Phileurus didymus, Burm. Handb. der Ent. v. p. 158. '

Philewms bajulus, Casteln. Hist. Nat. Ins. Col. ii. p. 116 (nee Perty),
Phileurus affinis, Eeiche, Ann. Soc. Ent. Fr. 1859, p. 12 (nee Burm.).

Sab. Mexico, Cordova [Salle, Soge), Toxpam [Salle), Jalapa, Tapachula in Chiapas
[Edge), Temax in North Yucatan [Gaumer) ; Guatemala, Cerro Zunil (Champion);
NicAEAGUA, Chontales [Belt, Janson) ; Costa Rica ( Van Fatten) ; Panama, Volcan de
Chiriqui 2000 to 3000 feet [Champion).

Varies in size from 28 to 50 millim. The thoracic tubercle on the fore margin
followed by a broad depression, from which commences the dorsal sulcus, are constant
characters in all the examples ; but the quadridentate anterior tibiae is subject to
exceptions, as the upper tooth is sometimes scarcely perceptible, or disappears alto-
gether. The tridentate P. affinis, Burm., which is reunited by Eeiche and Gemminger
and Harold as a var. to P. didymus, is, however, probably a distinct species, as it differs in
the absence of the broad pit behind the thoracic tubercle, whilst the P. affinis described
by Eeiche as distinct is clearly the same as P. didymus, the absence of a scutellar striole,
adduced as the sole character, being of common occurrence in the species.

■ ■ *

9. Phileurus microps.

Phileurus microps, Burm. Handb. der Ent. v. p. 161 \
Hab. Mexico ^ [Salle, ex coll. Sturm).

A single example from Sturm's collection, agreeing very well with Burmeister's
description.

10. Phileurus valgus.

Scarah(BUS valgus, Linn. Syst. Nat. i. (2) p. 546 ; Oliv. Ent. i. 3, p. 43, t. 17. fig. 160.

Phileurus valgus, Burm. Handb. der Ent. v. p. 160 ' ; Horn, Trans. Am. Ent. Soc. viii. p. 147

(1880) \
Phileurus castaneus, Haldem. Proc. Ac. Phil. i. p. 304.

Hab. North America, Texas 2. — Mexico, Jalapa [Edge), Temax in North Yucatan
[Gaumer); Guatemala, El Reposo [Champion). — South America, Colombia to S. Brazil i;
West Indies 1. - _ ,

Var. P. capra (Dej., coll. Salle). Major (28 millim.), tibiis 4 posticis extus medio fortius dentieulatis spinisque
apicalibus longioribus, elytrorumque interstitiis baud alternatim elevatis. '

Eab. Guatemala, Yzabal (SallS).

The largest examples of this species are distinguished from the smallest of P. didymus,

342 ' LAMELLICOENIA.

which they much resemble, by the very different armature of the four hind tibiae, which
have two spines or long teeth at the outer apex instead of one, and on the median ridge
a row of denticulations, ending sometimes with a short spine. In the var. ca'pra the
spines and denticulations are much stronger than in the type. The size of P. valgus
typ. varies from 16 to 24 millim.

11. Phileurus quadrituberculatus.

Scarab(BUS quadrituberculatus, Palisot de Beauv. Ins. Afr. et Amer. p. 42, t. 1 b. fig. 5.
Phileurus quadrituberculatus, Burm. Handb. der Ent. v. p. 162 \
Phileurus bajulus, Perty, Del. Anim. Art. Bras. p. 44, t. 9. fig. 7 ^
Phileurus cephalotes, Castelu. Hist. Nat. Ins. Col. ii. p. 116.

Hah. Mexico ^ ; Beitish Hofdukas, Belize (Blancaneaux) ; Hondueas, Euatan Island
(Gaumer); Nicaeagua, Chontales {Belt, Janson). — South Ameeica to Brazil 1 2.

The four hinder tibiae in this species have three strong teeth at their outer apex, and
a row of broad and strong denticulations on the median ridge.

AMBLYODUS.

Amblyodus, Westwood, Trans. Ent. Soc. Lond. 1878_, p. 32.

The following is the only known species of this genus, distinguished from Phileurus
chiefly by the tridentate mandibles. In this feature it agrees with Trioplus, to which
genus it is very closely allied, difiering chiefly by the simple fore-tarsal claws in the
male and the entire apex of the clypeus.

1. Amblyodus taurus. (Tab. xxi. fig. 2, c? .)

Amblyodus taurus, Westw. Trans. Ent. Soc. Lond. 1878, p. 32, t. 2. figg. 1 a-e \

Hah. Nicaeagua, Chontales (Belt ^} ; Panama, Volcan de Chiriqui 2000 to 3000 feet
(Champion).

Three examples, including the type-specimen of Westwood.

The specimen described by Prof. Westwood has only two teeth on the right mandible,
but as the two other examples (62) have both mandibles tridentate, it appears probable
that the bidentate state in this case is an aberration. The female (recognizable, as usual
in the Dynastidae, by the entire apical margin of the apical ventral segment) is precisely
similar to the male, except that the cephalic horns are very much shorter, and the
declivous anterior surface of the thorax is only half as large. I suspect, however, that
the difference is not always so great, as the females in Trioplus are almost exactly
similar to the well-developed males, whilst minor males have much shorter cephalic
horns.

ISCHNOSCELTS. — AEGYEIPA. 343

Pam, CETONIID^.

Suhfam. ISCHFOSTOMIFJE.

ISCHNOSCELIS.

Ischmscelis, Burmeister, Handb. der Ent. iii. p. 179 (1842) ; Lacordaire, Gen. Col. iii. p. 489.

This genus, interesting as displaying an affinity with the Goliathinae group of Africa
and Asia, so far at least as the cornuted head of the males is concerned, seems peculiar
to Mexico. Two species have been described, widely dissimilar in size, colour, length,
and clothing of the male fore legs, and to a lesser extent in the armature of the head,
but closely agreeing in all essential points of structure.

1. Ischnoscelis hopfneri.

Goliathus hoepfneii, Gory & Percheron, Monogr. Cetoin. p. 154, t. 26. fig. 2 \

Ischnoscelis hopfneri, Burm. Handb. der Ent. iii. p. 182 ^ ; Westw. Linnsea Entom. x. p. 326, t. 2.

Rab. Mexico ^ ^ (Sturm, in coll. Salle).

There are two examples only, a male and a female, of this rare species in the Salle
collection.

2. Ischnoscelis dohrni.

Ischnoscelis dohrnii, Westw. Linnsea Ent. x. p. 326, t. 2 ^.
Hah. Mexico 1, Sonora {in coll. Bates).

Subfam. GYMNETINM

ARGYRIPA.

y4r^?/n^ff, Thomson, Typi Cetonid. p. 11 (1878).
Allorhina, pars, Salle, Bates (olim), Westwood.

Three species of this beautiful genus have been described, remarkable for the curious
armature of the head and thorax in the males. The group appears to be restricted to
Central America and the neighbouring North-western parts of South America.

1. Argyripa lansbergei

Allorhina lanshergei, Salle, Ann. Soc. Ent. Fr. 1857, p. 617, t. 13. no. iii. figg. 1, 1 a-c'
Allorhina hypoglauca, Westw. Trans. Ent. Soc. Lond. 1874, p. 475, t. 7. fig. 6 '\
Argyripa lanshergei, Thomson, Typi Cetonid. p. 11.

Hah. Nicaragua 2.— Colombia 1.

This species is not contained in our collections and does not appear to have been

344 LAMELLICOENIA.

met with by either Belt or Janson during their lengthened residence in the eastern
part of Nicaragua.

2. Argyripa anomala. (Tab. XXI. figg. 15, 6-, 17, ? , var.)

Allorhina anomala, Bates, Trans. Ent. Soc. Lond. 1869, p. 388 ( c? ) ^

$ . A c? differt solum capite et thorace inermibus ; clypeo quadrato, piano, marginibus reflexis, apicali medio
pauUo altiore ; tibiis anticis extus (dente apicali excepto) inermibus ventreque albo polito nigro-punctato,
segmentis 2°-5™ medio antice macula nigra transverso-ovata. -

Var. c? 2 • Thorax margine toto flavo-cretaceo, nigro-punctato. ^

Ilab. Nicaragua, Chontales (Belt ^).

3. Argyripa subfasciata. (Tab. XXII. figg. 2, 2 a, e -, ^, S a, d , var.)

Argyripa subfasciata, Ritsema, Notes from the Leyden Mus. 1885, p. 41, t. 3. fig. 2 ( ? ) ^ ;
0. Janson, loc. eit. 1888, p. 118, fig. 119 [S)^-

Hah. Panama, Chiriqui^ (Trotsch), Bugaba (Champion). — Colombia i.

One of Mr. Champion's examples represents a variety (fig. 3) of this beautiful species
in which the dark purple velvety elytra are unicolorous, with the exception of four
rather small yellow marginal spots in the situation of the lateral terminations of the
fasciae and apical spot of the typical form. Mr. Janson in describing the male calls
attention to the extraordinary form of the mentum, the disc of which is produced as a
stout vertical spine, remarking, justly, that no trace of this exists in the male of
A. anomala, and only a slight indication of it in the male of A. lanslergei.

We figure two male examples from Bugaba.

CHIRIQUIBIA.

Gen. AllorMnce affinis, sed differt capite maris absque cornu frontali, fronte ab occipite longitudinaliter usque ad
eornu clypeale obtusissime carinata. Clypeus apice medio cornu mediocri erecto, bifido, capite margine
utrinque prope oculos alte et acute elevate, apice acuto et libero. Tibiae 4 posticae sat graciles, inermes,
antiese ( cJ ) apice extus in spinam acutam prolongatae et obsolete obtusissime bidentatse. Processus
sternalis (sicut in Ootine) latus, planus, apice late rotundatus. $ ignota.

One fine and large species only is known of this genus. The absence of horizontal
frontal horn necessitates its separation from Allorhina (incl. Tiarocera, Burm.), from
the species of which it also differs strikingly in colour and markings.

1. Chiriquibia insignis. (Tab. XXII. figg. 1, 1 «, c? .)

Allorhina insignis, O. Janson, Notes from the Leyden Mus. 1888, p. 119 \ ,

Eab. 'Panama, Chhiqui^ (Trotsch).

COTINIS. 345

COTINIS.

Cotinis, Burmeister, Handb. der Ent. iii. p. 254 (1842).
ia^emm, Thomson, Le Naturaliste, i. p. 268 (1880).
Balsameda, Thomson, loc. cit.

The species with emarginated clypeus and long spiniform teeth at the apex of the
four hind tibiae (genera Amithao and Besicasta) being withdrawn, this genus is here
left as defined by Burmeister. It includes about twenty species distributed throughout
the tropical and north temperate zones of America, and distinguished by having the
same armature of the head in both sexes, namely an erect clypeal horn often much
reduced, until in the aberrant forms it consists of a barely perceptible median elevation
of the reflexed apex of the clypeus, and a horizontal frontal horn, which likewise is
sometimes partly atrophied, but in the most aberrant species is visible as a tolerably
distinct central carina. The genus Latemnis of Thomson I consider as certainly
congeneric with Cotinis^ but Balsameda is rather better defined, consisting of those
species in which the external posterior angles of the hindmost coxae are obtuse and not
acutely produced as in the rest of the genus ; the armature of the head remains,
however, normal, and I think it advisable to retain it as a section of Cotinis.

I. Coxae posticce angulis posticis suhfalcato-productis.

1. Cotinis laticornis. (Tab. XXII. figg. 6, 6 ot, ? .)

G. harthelemyi affinis. Subelongato-oblonga, thorace quam in C. mutdbili postice multo angustiore ; cornu
clypeali apice late dilatato et tridenticulato, dente intermedio obtuso, cornu horizontali frontali apice longe
libero et recte porreeto. Caput, thoracis margine late (et interdum linea angusta dorsali), epimeris
corporeque subtus viridi-metallicis, nitidis, elytris velutinis fusco-purpureis vel fusco-fulvis versus suturam
viridi-obscuris ; thorace disco viridi-velutino, margine nitido, rugoso-punctato ; pygidio sparsius quam in
G. mutahili transversim striguloso ; pectore, ventris lateribus et tibiis 4 posticis intus fulvo-rufo pilosis.
Tibiae 4 posticse medio extus carina denticulata, apice late et obtuse dentatse ; antieae <S apice extus valide
dentatse, supra biflexuosae interdum unidentatae, $ bidentatse. Processus sternalis latus, planus, parte
mesosternali fere sicut in G. mutahili, sed paullo angastiore.

Long. 27-35 miUim. ; lat. thor. basi 10-13 millim. S $ •

Hah. Mexico, Sonora {coll. Bates), Villa Lerdo in Durango, Tupataro in Guanajuato
(Hdge)y Guanajuato {Salle), Mexico city (Br. Balmer, Flohr).

A good number of examples of both sexes, in all of which the clypeal horn is greatly
dilated at the apex and more or Ipss distinctly tridentate. This character, added to the
tawny or rich purple-brown colour of the elytra, distinguishes the species well from
C. harthelemyi of Colombia.

We figure an example from Mexico city. ^

BIOL. CENTK.-AMER., Coleopt., Vol. 11. Pt. 2, March 1889. 2 YY

346 LAMELLICOENIA.

2. Cotinis mutabilis. (Tab. XXI. fig. 5; Tab. XXII. figg. 4, 4 a, 5, 5 a,
12, 12 a, vars.)

After careful examination of about 250 examples I have come to the conclusion that
the characters adduced by Burmeister to distinguish this species from C. sohrina are in
the highest degree inconstant, and that there are no means of defining the two species.
All that can be said is that C. mutabilis is, in the great majority of its individuals, larger
and broader. The shape of the clypeal horn is very variable, and its varieties do not
correspond with variations in size, breadth, and colour, large and robust specimens of
the typical mutaUlis having the horn either dilated towards the apex, parallel-sided, or
triangular, and the same diversities may be seen in small and slender oblong examples
of C. sohrina. It is the same with regard to form and colour ; for it is far from the
case that the large and broad examples {C. mutabilis) only are unicolorous ; smaller
and narrower individuals exist equally unicolorous and of nearly all the colour-va^rieties
displayed by the larger set. It is true that the variegated varieties described by
Burmeister under C. sohrina are, as a rule, smaller than the others ; but they are
connected by the most finely graduated series of variations, so that it is impossible to
draw a distinction between the two series. The case is a very difficult one to deal with.
It would not be satisfactory, and scarcely practicable, to include under one specific
diagnosis all the numerous varieties, some of which are possibly local, thus presenting
an interesting study to future collectors and students ; the better course seems to be to
treat the more distinct separately, giving the localities of each : —

Typical form. — Gh/mnetis mutabilis, Gory & Perch. Monogr. Cetoin. p. 334, t. 66. fig. 5' ; Ootlnis mutahilis,
Burm. Handb. der Ent. iii. p. 255 ^. Robusta, supra viridis, opaca, subfcus splendide viridi-senea vel
viridi-aurata, ventre interdum flavo-translucente ; cornu clypeale plerumque quadratum vel apiee pauUo
dilatatum et subsinuatum, sed interdum breve obtuse triangulare.

Hah. Mexico ^ ^, Matamoros Izucar in Puebla, Jalapa (Edge), Cordova, Vera Cruz,
Campeche (Salle), Temax in North Yucatan (Gaumer) ; ? Costa Rica (Van Patten).

Var. 1. Eadem, sed corpore subtus saturatius viridi-seneo vel subchalybeo.

Hah. British Honduras, R. Sarstoon {Blancaneaux) ; Guatemala, near the city
alt. 5000 feet (Salvin), Volcan de Atitlan (Champion).

Var. 2. Oymnetis meosicana, Gory & Perch. Monogr. Cetoin. p. 335, t. 67. fig. 1 ^ ; Cotinis sohrina, var., Burm.
Handb. der Ent. iii. p. 256 ''. PauUo minor et angustior ; quoad colores 0. mutahilis formse typicae
similis.

Hah. Mexico ^ 2, Cuernavaca (Salle, H. H. Smith), Jalapa (Edge), Temax in North
Yucatan (Gaumer) ; Guatemala, Chimaltenango (Conradt).

Yar. 3. Yar. 2 quoad formum similis, sed interdum robustior, differt elytrorum lateribus et versus apicem
obscure iTifo-translucentibus ; cornu clypeale variabile.

Hah. Mexico, North Yucatan (Gaumer); Guatemala, San Geronimo (Champion).

COTINIS. 347

Var. 4. Cotinis cujorascens. Supra aureo- vel eupreo-fusca, subtus aurata, cupreo-aurata, vel rufo-cuprea ;
magna, robusta ; cornu clypeale quadratum. (Tab. XXI. fig. 5.)

Hah. Mexico, Jalapa (Edge), Temax in North Yucatan (Gaumer); Nicaeagua,
Chontales (Belt).

Sent in abundance by Mr. Gaumer from Northern Yucatan.

Var. 5. Var. cuprascenti quoad colores simillima, sed plerumque multo minor et cornu clypeali brevi triangular!.

Rab. Mexico, Jalapa (Edge), Temax in North Yucatan (Gaumer); Guatemala, San
Geronimo (Champion).

Yar. 6. 0. suheastanea. Robusta, supra cuprascenti- vel castaneo-fusca, subtus et pedes castaneo-rufa, pectore
nigro-castaneo ; cornu clypeale plerumque elongatum, lateribus parallelis.

Hah. Mexico, Jalapa (Edge). - *

Yar. 7. Gymnetis nigroruhra. Gory & Perch. Monogr. Cetoin. p. 332, t. 66. fig. 1 \ Magna, robusta, supra sub-
purpureo-nigra ; cornu clypeale plerumque altum, lateribus parallelis sed interdum (individuis magnis)
breve obtuse triangulare. Long. 28-34 millim. S 2 .

Eah. Mexico ^, Puebla, Cordova, Juquila (8alU), Putla (Boucard, coll. Bates) ;
Beitish Hondueas, R. Sarstoon (Blancaneaux) ; Guatemala, near the city (Salvin),
San Geronimo, Coban and Tamahu in Vera Paz (Champion)^ Chimaltenango (Conradt).

Yar. 8. Gymnetis atrata, Gory & Perch. Monogr. Cetoin. p. 330, t. 65. fig. 4 \ Plerumque minor et pauUo
angustior, sed interdum magna et lata, aterrima ; cornu clypeale apice acuminatum sed interdum obtusum.
Long. 20-30 millim. c? $ .

Eah. Mexico i, Puebla (SallS, Edge), Atlixco, Cordova, Jalapa (Edge), Cuernavaca
( Edge, E. E. Smith) ; Guatemala, Coban in Vera Paz (Conradt).

Sometimes there is a trace of red marginal vitta on the elytra, which connects this
variety with the following.

Yar. 9. Cotinis sohrina, var. caUra, Burm. Handb. der Ent. iii. p. 256 ^ Yar. atratce similis, difFert tantum
elytrorum vitta laterali vel vittis laterali et discoidali (apice conjunctis) et thoracis margine saturate rufis,
vittis interdum obsoletis vel maxime dilatatis.

Eab. Mexico \ Puebla [Salle, Edge), Atlixco, Jalapa, Cordova (Edge).

The clypeal horn is in all our examples triangular ; in some broader and obtuser
than in others.

Yar. 10. C. intergenea. Yar. cahirce individuis gracilioribus similis, thoracis lateribus elytrisque vittis
latissimis interfusis obscure rufis ; sed cornu clypeale sicut in forma maxima typica latum et altum, apice
pauUo dilatato et summo sinuato ; corpore subtus et pedibus fere sicut in var. suheastanea castaneis vel
cupreo-castaneis. Long. 24 millim. S • (Tab. XXII. figg. 5, 5 a.)

Eah. Mexico, Jalapa (Edge).

Two examples, one almost exactly similar in form and colour to a specimen of var.
cahira in which the obscure red vittee of the elytra are dilated and extend over the
whole surface leaving only a broad sutural vitta (narrowed behind) of the blackish

2 YY 2

348 LAMELLICOENIA.

ground-colour; the other precisely similar in form, but with the reddish stripe and
thoracic margins less distinct and the underside reddish-castaneous, slightly cupreous.

Yar. 11. Gymnetis paUiata, Gory & Perch. Monogr. Cetoin. p. 336, t. 67. fig. 2 ^ ; Ootinis sohrina, var. h, Burm.
Handb. der Ent. iii. p. 256 ^ Viridis, subtus resplendens, sicut in C. mutaUli typiea, sed elytrorum vitta
laterali, et interdum lateribus thoracis, obscure rufis ; minor, corpora graciliore cornuque clypeali brevi
triangulari; variat corpore robnstiore, cornu clypeali altiore, lateribus subparallelis, et vitta laterali
elytrorum obscura.

Hah. Mexico ^ ^, Ciudad in Durango (Forrer), Toltepec (Salle), Mexico city {Br.
Palmer), Jalapa, Almolonga, Matamoros Izucar in Puebla [Hoge).

The red lateral stripe of the elytra is sometimes very ill-defined from the green
ground-colour and in other examples reduced to a narrow border ; this form, in short,
graduates into the variety mexicana. ■

Var. 12. Cotinis aurantiaca. Magis robusta et quadrata ( c? 2 ), supra Isetius viridi vittaque laterali elytrorum
aurantiaca-flava et magis distincta (raro interrupta vel obsoleta) ; subtus viridi-metallica, ventre ssepe rufo ;
cornu clypeale breve triangulare, late triangulare et obtusum vel quadratum. Long. 21-30 mUlim. S 2 .
(Tab. XXII. figg. 4, 4 a.)

Hah. Mexico, Ciudad in Durango 8100 feet (Forrer), Alamos, Pinos Altos in
Chihuahua (Buchan-Hephurn), San Luis Potosi (Dr. Palmer), Istepec (Salle).

Has the facies of a distinct species and the sternal process is somewhat longer ; but
the form graduates into C. palUata.

An example from Alamos is shown on our Plate.

Var. 13. Gymnetis sohrina, Gory & Perch. Monogr. Cetoin. p. 336, t. 67. fig- 3 ' ; Cotinis sobrina, var. c, Burm.
Handb. der Ent. iii. p. 256 ^ Viridis, subtus viridi-aurata, thorace vel concolor vel lateribus irregulariter
fulvis, elytrorum vittis duabus latis obliquis ante apicem conjunctis fulvis. Quoad formam plerumque
( c? 2 ) minor et gracilior, sed interdum ( $ ) lata et robusta ; cornu clypeale latins vel angustius triangulare,
raro elongatum et parallelogrammicum.

Hah. Mexico ^ ^, Istepec, Guanajuato, Oaxaca (Salle), Matamoros Izucar in Puebla,
Almolonga (Hoge).

Var. 14. Ootinis robusta. A cseteris varietatibus differt statura multo majore oblongior ; subtus viridi-metallica,
supra viridi- obscura, thorace lateribus elytrisque (plaga juxtascutellari excepta) fulvis ; cseteris sicut in
G. sobrina et G. malina. Long. 30 millim, S .

Rah. Mexico, Sonora [coll. Bates).

Var. 15. Cotinis obliqua (sobrina, var. d), Burm. Handb. der Ent. iii. p. 256 ^ : C. mnlinus, 0. Janson, Cist. Ent.
ii. p. 575 ^. Viridis, subtus viridi- interdum aureo-viridi-metallica, thoracis vitta margin ali (plerumque
quoque vitta dorsali vel macula postica) elytrisque toto (vitta vel plaga magna basali et suturali excepta)
ochreo-fulvis ; cornu clypeale variabile, parvum triangulare vel major, truncatum vel alte quadratum,
venter interdum rufescens. (Tab. XXII. figg. 12, 12 a.)

Hah. Mexico ^ ^, Parras and Saltillo in Coahuila, San Luis Potosi (Br. Palmer)^
Ventanas in Durango (Hoge), Guanajuato (Salle), Mexico city (H. H. Smith, Br.
Palmer).

Passes by insensible gradations into C. sohrina and exhibits the same great diversity

COTINIS. 349

of general form of body; some examples ( c^ ) are small (19 millim.) and narrow, others
( d ) remarkably elongate (28 millim.) without corresponding width and with high
parallel-sided clypeal horn, whilst others ( $ , 26 millim.) have the broad oblong-ovate
outline of C. mutahilis typical form. Male examples also occur with a clypeal horn so
excessively reduced that it appears only as a small obtusely triangular elevation.
An example from Guanajuato is figured.

3. Cotinis punctato-striata. (Tab. xxii. figg. 9, 9, «? c? .)

C. mutahilis varietatibus minoribus similis, sed differt elytris seintillanter punctulato-striatis. Colore variat : —
(1) Yiridi-concolor (subtus aurato-viridis metallica) ; (2) viridis, elytrorum vitta lateral! usque ad suturae
apicem extensa obscure rufa ; (3) viridis, thoracis lateribus vittaque dorsali et elytris toto (sutura et plaga
magna triangular! juxtascutellari exceptis) obscure fulvis ; (4) cupreo-aurata, subtus resplendens rufo-
relucens ; et (5) purpureo-fusca, subtus castanea baud metallica. Cornu clypeale sat elongatum, plerumque
triangulare acutum, interdum truncatum, raro lateribus subparallelis ; cornu frontale interdum angustum,
apice baud longe liberum. Pygidium et processus sternalis sicut in C. mutabili.

Long. 21-25 mUlim. c? $ •

Rab. Mexico, Vera Cruz (Salle), Almolonga, Jalapa [Edge) ; Nicaeagua, Granada
(Salle).

The shining punctured strias are visible chiefly in the depressed intervals between
the suture and the first costa and between the two costse ; they are in each interval
two in number, and the space between the first pair is irregularly punctured ; the apex
between the callus and the suture is also more or less punctured. The males are
slenderly oblong, like the smallest males of C. mutahilis ; the females are more robust
and subquadrate. The species was captured in abundance by Herr Hoge at Almolonga ;
it is in many points intermediate between C. mutahilis and C. pauperula.

The single female example from Granada, Nicaragua, differs from all the others in
its larger size (28 millim.), and broader, more robust figure. It resembles, in fact,
closely, certain Guatemalan examples of C. mutahilis, typical form, which have a broadly
triangular clypeal horn, except in the numerous shining green punctures of the
elytra.

4. Cotinis pauperida. (Tab. xxil. fig. 13,)

Cotinis pauperula, Burm. Handb. der Ent. v. p. 550 \

Hah. Mexico i, Acapulco (J. J. Walker, Edge), Iguala in Guerrero (Edge), Yolotepec
(SalU).

Smaller in size and more slender in form than any but exceptionally dwarfed examples
of C. mutahilis or than C. punctato-striata. It agrees with the latter in the punctate-
striate elytra, but the punctures are opaque ; and it also differs in the frontal horn being
reduced to a sharp carina, never free, though nearly always vertically truncated at the
extremity. The clypeal horn is always very short and triangular, and the sternal
process somewhat narrow and rather more acutely rounded at the apex than in C. mutahilis.

350 LAMELLICOENIA.

The margins of the thorax are distinctly less broadly incrassated than in C. mutaUlis
and C. 'punctato-striata ; in this respect the species approaches the North- American
C, nitida. The colour varies : (1) dullish green, very dark and tinged with brassy
beneath ; (2) the same, with the margins of the thorax and the whole of the elytra,
except a broad triangular juxtascutellar patch, dull fulvous ; (3) wholly fulvous above,
except the disc of the thorax, which remains green ; (4) thorax and elytra entirely
fulvous. The length ranges from 21 to 23 millim. •

5. Cotinis pueblensis. (Tab. XXII. figg. 11, 11 a.)

C. ■pauperulm quam proxime affinis, sed differt duplo majore et robustiore ; nigro-viridis, opaca, elytrorum
lateribus obscure rufo translucentibus, subtus nigro-senea, nitida ; carina frontali antice leviter declivi,
cornii clypeali late triangulari ; thoracis margine latins incrassato, antice obsoleto et cum lateribus sparsim
grosse punctato ; elytris passim grosse striato-punetatis ; processu sternali antice (parte mesosternali) trans-
verso et subacute rotundato ; metasterno coxisque posticis angulis postero-externis sicut in G. mutahili et
affinibus acute productis ; subtus pubescentia vulpino-rufa.

Long. 28 millim. S (?)•

Hab. Mexico, Matamoros Izucar in Puebla (Hoge).

Possibly a local or geographical form of C. pauperula. One example only.

6. Cotinis producta.

Elongato-oblonga, viridis, opaca, subtus metaUica, elytris fulvis, sutura et plaga juxtascutellari viridibus ; cornu
clypeali brevi, latissimo, apice paullo dilatato, postice concavo-arcuato apice truncate ; cornu frontali fere
usque ad cornu clypeale extenso, apice fere verticali vix libero ; tborace postice minus dilatato, passim
sat grosse punctato, lateribus late glabris nitidis, margine sat incrassato ante apicem obsoleto; elytris
punctulato-striatis ; pygidio sicut in affinibus dense striguloso ; processu sternali brevi, parte mesosternali
parva triangulari ; tarsi breves et robusti, posticis articulis l''-4" longitudine sequalibus.

Long. 27 millim. S (?)•

Hab. Mexico, Sonora (coll. Bates).
One example only.

7. Cotinis lebasi. (Tab. XXI. fig. 6.)

Gymnetis Lebas, Gory & Perch. Monogr. Cetoin. p. 335, t. 66. fig. 3 \
Cotinis Lebasi, Burm. Handb. der Ent. iii. p. 258 ^

Hab. Panama, Chiriqui (Bibbe), Bugaba, Taboga Island {Champion), Panama city
(/. J. Walker). — Colombia ^ ^.

About a score examples answering to the above-cited descriptions and figure, except
with regard to the pygidium, the great peculiarity of which, namely its opaque surface,
is not mentioned. The insect is of the broad robust form of the typical C. mutabiUs
(28-35 millim.), though rare examples occur of rather smaller and narrower outline ;
the colour above is dark olivaceous-green, beneath red-coppery, inclined to aeneous in
Taboga Island examples. It differs constantly from C. mutabiUs, apart from the opaque

COTINIS. 361

pygidium, in the frontal horn having only a short free extremity, the sides of the thorax
simply rounded, and in the mesosternal part of the sternal process being much broader
and shorter. It is remarkable that the clypeal horn, so variable in form in C. mutabilis,
is here always very short and triangular.

Found in rotten pine-apples and other fruits (C%«mp^o?^).

8. Cotinis subviolacea.

Gymnetis subviolacea, Gory & Perch. Monogr. Cetoin. p. 333, t. 66. fig. 6\
Cotinis subviolacea, Burm. Handb. der Ent. iii. p. 259 ^

Hab. Mexico 12^ Cordova, Tuxtla [Salle), Jalapa (Edge), Teapa, Orizaba (//. H.
xS'm^A), Temax and Valladolid in Yucatan (Gaumer); Guatemala (Salle), Coban in
Vera Paz (Conradt).

Varies from glossy black through violaceous, purple-brown, on to brassy-green. Some
examples show faint rows of punctures on the elytra, and in others the clypeal horn
is obsolete, or visible only as an indistinct triangular fold of the posterior edge of the
front margin.

9. Cotinis plicatipennis. -

Cotinis plicatipennis, Blanch. Cat. Coll. Eut. i. p. 33 \
Ilab. Mexico ^, Jalapa (Salle, H'dge).

Probably only a variety of C. subviolacea, but besides the transverse inequalities
and folds of the elytral surface, which constitute its sole structural difference, the
colours are more brilliant — golden or brassy-green and sometimes lustrous coppery.

10. Cotinis viridicyanea.

Gymnetis viridicyanea, Perbosc, Rev. Zool. 1839, p. 262 \
Cotinis viridicyanea, Schaum, Ann. Soc. Ent. Er. 1844, p. 356.
Cotinis subviolacea var. viridicyanea, Burm. Handb. der Ent. iii. p. 259.

Hab. Mexico \ Campeche (Salle), Temax in North Yucatan (Gaumer).
Sent in abundance from Temax by Gaumer.

11. Cotinis polita.

Co/imsjoo/i^a, O. Janson, Cist. Entom. ii. p. 133\

Hab. NiCAEAGUA, Chontales (Janson i) ; Panama, Bugaba (Champion), Chiriqui
(TrotscK).

A glossy black species, with frontal carina gradually lowering and not free at its
extremity.

352 LAMELLICOENIA. .

12. Cotinis oHvia. (Tab. xxi. fig. 10.)

C. polHcB amnis, sed differt Mrsutie pedum et pectoris vnlpino-rufa nee nigra, coloreque olivaceo-viridi vel
seneo-olivaceo ; glabra, metaUica. A C. subviolacea differt corpore angustiore, cornu clypeali nullo sed
clypei margine antiee acute rotundato reflexo, medio altiore, carina frontali liaud libera, apice declivi et
^ fere ad clypei apicem extensa. Thorax postice minus ampliatus; lateribus ante angulum distinctum
posticum sinuatis, discrete punctatis, punctis majoribus et minoribus intermixtis. Elytris insequalibus,
subtilissime distanter sublineatim punctulatis. Pygidium subtilissime strigosum, apice fere Iseve. Pro-
cessus sternalis parte mesosternali lata et brevissima, apice obtuse truncata.

Long. 23-30 minim. 2-

Rah. Co^Tk^iCk {Van Patten), ^10 ^udo {Roger s).
Five examples, apparently all females.

13. Cotinis antonii.

Cotinis Antonii, Duges, La Naturaleza, iv. p. 170 (1879)\
Cotinis senew, O. Janson, Cist. Entom. ii. p. 575 (1880) ^
Latemnis Antonii, Thomson, Le Naturaliste, i. p. 268.

Hah. Mexico 2, Guanajuato 1 {Duges, in coll Salle), Tupataro in Guanajuato {Edge).

Wholly violet-black, the pubescence beneath black. The frontal carina is short and
elevated, and terminates abruptly ; the reflexed apex of the clypeus is often very
distinctly higher in the middle and can never be called truncate. The sternal process
is flat, but somewhat acutely rounded at the apex as in C. ^roducta.

14. Cotinis alboscripta.

Gymnetis alboscripta, O. Janson, Cist. Entom. ii. p. 301 \

Hab. Mexico, Almolonga {Hbge), Amula in Guerrero {H. E. Smith), Oaxaca 1.

In this, the most aberrant species of the genus, the frontal carina though distinct blends
gradually in front with a slight convexity in the middle of the clypeus, which latter
has no trace of dentiform projection in the middle of the front edge ; the sides of the
forehead and truncated clypeus are equally and rather strongly elevated ; the sternal
process has the flat obtusely rounded form prevalent in Cotinis.

II. Coxce ^posticce angulis posticis obtusis (gen. Balsameda, Thorns.).

15. Cotinis cincta.

G?/mwe^is cmc/a. Gory & Perch. MoDOgr. Cetoin. p. 339j t. 67. fig. 6 \
Cotinis cincta, Burm. Handb. der Ent. iii. p. 262 ^

Hab. Mexico 2. — Interior of Brazil ^ (locality erroneous, according to Burmeister).

Our collections contain nothing resembling this species.

Obs. Gory and Percheron give Mexico as the locality of another species, C. terminata,
which Burmeister says is also erroneous, the species being from Brazil.

COTimS.— GTMNETIS. 353

16. Cotinis pulverulenta. (Tab. XXII. fig. 10, s.)

Cofinis pulverulenta, Burm, Handb. der Ent. iii. p. 263 \
Cotinis gracilis, Sharp, Journ. Linn. Soc, Zool. xiii. p. 137^.

ITab. Mexico ^, Mirador (Salle), Almolonga (Edge), Valladolid in Yucatan (Gaumer) ;
British Honduras, Cayo {Blancaneaux) ; Honduras 2.

Burmeister mistook a (probably slender) female example for the male, and described
both sexes as having sharply tridentate anterior tibias and the scattered scaly clothing
as changing into scaly hairs on the under surface and legs. But the true males, in fact,
have remarkably slender fore tibiae, with no conspicuous tooth except the long curved
terminal one ; the second tooth is only slightly indicated, and in some examples entirely
wanting, and the uppermost tooth is a very short sharp spine. The males have scattered
oval scales over the entire body and legs ; in the females the scales change on the
pygidium, under surface, and legs into more or less slender hairs. In length the species
varies from 17 to 21 millim., and in width from 7 J to 12 millim. C. gracilis, Sharp,
is founded on a slender male example.

We figure an individual from Mirador.

17. Cotinis adspersa. (Tab. XXI. fig. 14.)

Cotinis adspersa, Sharp, Journ. Linn. Soc, Zool. xiii. p. 136 \
Ilah. Nicaragua, Chontales (JBeW^).

A very distinct species. The frontal horn is much raised and laterally compressed,
with a rather long free end pointed and curving downwards ; in C. pulverulenta it forms
a scarcely perceptible longitudinal swelling, free at the end through the deep pit-like
depression of surface of the clypeus.

18. Cotinis ?

Hah. Mexico, Santa Clara in Chihuahua [Edge).

One example, crushed and distorted, of an evidently new species allied to C. antonii.

GYMNETIS.

Gymnetis, MacLeay, Horse Ent. i. p. 153 (1819) ; Burmeister, Handb. der Ent. iii. p. 264; Lacor-
daire^ Gen. Col. iii. p. 499.
A genus characteristic of Tropical America and comprising about 100 described species.

1. Gymnetis cinerea.

Gymnetis cinerea, Gory & Perch. Monogr. Cetoin. p. 371, t. 75. fig. 4; Burmeister, Handb. der

Ent. iii. p. 268 \
Var. Gymnetis punctata, Blanch. Cat. CoU. Ent. i. p. 36 ^.

Eab. Mexico i ^, Monterey in Nuevo Leon, Villa Lerdo in Durango, Aguas Calientes
BIOL. CENTE.-AMEE., ColeopJ., Yol. II. Pt. 2, March 1889. 2 ZZ

354 LAMELLICOENIA.

city, Lagos in Aguas Calientes, Tonila in Colima, Colima city, Guadalajara, Matamoros
Izucar and Atlixco in Puebla, Jalapa (Hoge), Alamos (JSuchan-IIej)burn), Guerrero
(Baron), Presidio (Forrer), Cordova, Puebla, Vera Cruz, Juquila, Oaxaca, Etla, Guana-
juato (Salle) ; Guatemala (Salle), San Isidro, San Geronimo (Chantpion).

Avery large number of examples. The chief colour-varieties are: — (1) ochreous-
tawny, (2) rich fulvous-brown, (3) dark purplish -brown, and (4) ashy-black, none of
which seem to be local except no. 3, all the examples of which come from Colima city,
some of them impunctate and others more or less strongly punctured. But the punc-
tuation, which is the sole character of C. punctata of Blanchard, is present in certain
specimens of all the colour-varieties, and, though apparently more frequent in those from
the central and northern plateaux, is evidently of very little importance.

2. Gymnetis uniformis.

Gymnetis uniformis, Blanch. Cat. Coll. Ent. i. p. 36 \

Hah. Mexico (Ghieshreght '^) ; Guatemala, near the city alt. 5000 feet (Salvin, coll.
Bates).

A small example ( $ , 20 millim.), evidently referable to this species, distinguished by
its dark coppery under surface, legs, and pygidium, was brought from Guatemala by
Mr. Salvin. The upperside is dark, nearly black, and velvety ; the sternal process is
formed as in G. cinerea.

3. Grymnetis liturata.

Cetonia liturata, Olivier, Ent. i. 6, p. 86, t, 12. fig. 121.

Gymnetis liturata, Gory & Perch. Monogr. C^toin. p. 369, t. 75. fig. 1 ^ ; Burm. Handb. der Ent.
iii. p. 272 ^

Hah. Mexico, Cordova (Salle), Jalapa (Hoge) ; British Hondueas (Blancaneaux) ;
Guatemala (SallS), Cerro Zunil, Zapote, San Juan in Vera Paz (Champion), Coban
(Conradt); Nicaragua, Chontales (Belt, Janson); Costa Rica (Van Patten), Rio Sucio,
Cache (Bogers) ; Pai^ama, Bugaba, Volcan de Chiriqui 2000 to 3000 feet, David, Caldera
(Champion). — South America, Venezuela to S. Brazil.

4. Gymnetis ocellata.

Gymnetis ocellata, Gory & Perch. Monogr. Cetoin. p. 368, t. 74. fig. 5 ' ; Burm. Handb. der Ent.
iii. p. 274 ^

Hah. Mexico, Frontera in Tabasco (H. H, Smith) ; Nicaragua, Chontales (Belt). —
South America ^^.

5. Gymnetis argenteola. (Tab. XXII. fig. 7.)

Sat anguste oblonga, subviridesccnti-flava, opaca, capite antice, thoracis mafgine incrassato, epimeris, scutello
et corpora subtus pcdibusque splendide cobaltino-argenteis ; capite sparsim (plerumque arcuatim) puuctato,

GYMNETIS. 355

piano, clypeo quadrate, margine, prsecipue antico, acute reflexo, hoc medio sinuato ; thorace et elytris
sparsim et irregulariter arcuatim puijetulatis, punctulis minoribus rotundis intermistis, illo dorso et basi
fere impunctato, sutura parum elevato apice vix producto ; pygidio ( c? ) flavo-opaco, sat magno inaequaliter
convexo, vermiculato-strigoso, breviter setoso ; eorpore subtus et pedibus grossius sparsim arcuato-punctatis.
Processus sternalis brevis, conicus, baud deorsum inclinatus ; tibiae anticee (cS) breviter et acute tridentatis.
Long. 17 millim. c? .

Hah. Mexico, Pinos Altos in Chihuahua {Buchan-Hephurn).
' One example only of this beautiful little species has been received.

6. Gymnetis margaritis. (Tab. XXII. fig. 8, s .)

Supra pallida fusco-grisea vel fulvo-grisea, saturatius fusco-punctata (punctis minutis quoad formam multo
diversis), elytris plaga magna juxtascutellari, lateribus et costis versus apicem pallide et sordide fuscis,
minus dense punctatis, thorace linea tenui dorsali pallidiore ; capite antice, thoracis margine incrassato,
epimeris, scutello, corporeque subtus cum pedibus aurescenti-margaritaeeis, nigro-punctatis (punctis
arcuatis) ; ventre metasternoque medio Isevibus, Capite nigro, punctato, clypeo quadrato, margine antico
elevato et medio sinuato, fere obtuse bidentato ; thoracis margine laterali ante basin sinuato ; epimeris
nigro-punetatis ; pygidio transversim subvermiculatim nigro-strigoso. Processus sternalis brevis, conicus,
baud deorsum inclinatus.
c? . Venter medio longitudinaliter depressus, segmentisque 2°-5™ antice macula nigra ; tibiae anticae angustse,
brevissime tridentatse. $ . Venter medio late niger, politus.

Long. 13-21 millim. d" 2 •

Hah. Mexico, Guerrero {Baron), Acapulco, Oaxaca [Hoge], Etla, Tehuantepec [Salle) ;
Guatemala {Salle).

The single examples from Etla and Tehuantepec have a short and narrow dark brown
vitta from the middle of the base of each elytron. The unique Guatemalan specimen
has a lazuline-bluish tinge on the upper surface and on the tibiae. »

An example from Tehuantepec is shown on our Plate.

7. Gymnetis apiata,

Gymnetis apiata, Burm. Handb. der Ent. iii. p. 278 \

Sah. Mexico i.

8. Gymnetis difiicilis. (Tab. XXI. fig. 13.)

Gymnetis difficilis, Burm. Handb. der Ent. iii. p. 383 \

Hah. Mexico i, Cordova {Salle)., Misantla, Jalapa {Hoge), Temax in North Yucatan
{Oaumer); Guatemala, Chimaltenango {Conradt); Nicakagua, Chontales {Belt).

Burmeister says the males are lighter in colour and the females darker with the
apex of the elytra only pale ; but this distinction is not constant, as most of the males
I have seen have the same characteristic fulvous apex (clouded with pale brown) as the
females; the darkest or blackish individuals are, however, females. The mesosternal
epimera are not furnished with a shining apical tubercle, and the mesosternal process
is simple, i. e. without tubercle above, and of little vertical thickness ; characters which
distinguish the species from several others of similar colour and markings.

2 ZZ 2

356 ' * LAMELLICOENIA.

9. Gymnetis chontalensis. (Tab.XXllLfig.il.)

Gymnetis chontalensis, O. Janson^ Cist. Entom. i. p. 374, t. 9. fig. 4\
Eah. ^iGXRkGx^ A, C\iontdi\Qs (Janson'^, Belt).

In this species the sternal process is of remarkable vertical width, and rather short
and abruptly bent downwards.

10. Gymnetis coturnix. (Tab. XXIII. fig. 12, var.)

Gymnetis coturnix, Burm. Hatidb. der Ent. iii. p. 289 \
Hah. Panama, Chiriqui {Bihbe, coll. Bates). — South America, Colombia i.

Var. G. nigrina. Griseo-nigra, confluenter nigro-maculata, thorace strigis nonmiUis guttisque elytrorum
marginalibus versus apicem cameis.

Hob. Panama, Chiriqui (Trotsch), Volcan de Chiriqui (Champion).

An example obtained from the late Edwin Brown's collection, and ticketed " Brazil,"
agrees with Burmeister's description of this species, and I suspect the locality attached
is erroneous, the real habitat being most likely Colombia. A Chiriqui specimen from
Ribbe agrees with it, except that the black spots of the elytra unite in larger patches.
The ground-colour of this (the typical form) is above dark greyish or tawny-brown,
with two or three distinct orange-coloured spots on the margin of the elytra. The
species is extremely close to G. chontalensis. Besides the very different colour and the
fewer and larger black spots of the elytra, I find no differences except that in G. coturnix
the thorax has more acute and produced hind angles, and the black tubercle of the
epimera is surrounded by a pink ring. The sternal process is a little less abruptly
bent downwards, but the degree of this may be a variable character ; it has the same
great vertical width as in G. chontalensis. The male is of a uniform dark grey colour
beneath as in G. chontalensis.

11. Gymnetis balzarica,

Gymnetis balzarica, O. Janson, Cist. Entom. ii. p. 580 ^
Hah. Costa Rica (Van Fatten). — Ecuador, Balzar Mts. i

One example of this well-marked species was obtained from Van Patten's collection.
G. balzarica was previously known only from the Balzar Mountains on the Pacific side
of the main Andes in Ecuador.

12. Gymnetis chevrolati. (Tab. XXI. fig. 16, var. ramulosa.)

Gymnetis Chevrolat, Gory & Perch. Monogr. Cetoin. p. 346, t. 69. fig. 3.
Gymnetis ramulosa, Bates, Trans. Ent. Soc. Lond. 1869, p. 389 '.

Hab. Nicaragua, Chontales (Belt ^) ; Panama, Chiriqui (Trotsch), Volcan de Chiriqui
2000 to 3000 feet (a«??^^^o/^). -

GTMNETIS. 357

The examination of a large series has shown that G. ramulosa is only a slight and
inconstant variety of G. chevrolati ; but I have seen no specimen agreeing in the yellow
lines of the elytra with Gory and Percheron's figure except one from Mr. Edwin
Brown's collection labelled " Panama." In all the others the yellow fascia very nearly
reaches the suture and in some both the fascia and borders are of considerable width, a
small dark spot remaining at the junction of the fascia and border on each side. The
colour of the upperside varies from dark olivaceous-brown to rich purplish-black. In
the original description i of G. ramulosa the symbols of the sexes were accidentally
reversed; it is the male that has the under surface dark (blackish) grey, and the
female the glossy-black abdomen and middle of the sternum.

13. Gymnetis kerremansi. (Tab. XXI. figg. 7, 8.)

Gymnetis kerremansi, Van de Poll, Notes from the Ley den Mus, viii. p. 231 \

Sah. NicAEAGUA, Chontales (Belt); Panama, Bugaba (Champion), Isthmus of
Panama 1.

Our five examples (three males, two females) agree with V. de Poll's description, if
we may understand his terms " cervina " and " fallow " to mean bluish-grey, for this
is the colour of the underside, the mesosternal epimera, and the vague spots and
borders of the numerous black spots and streaks which on a ground of ochreous make
up the beautiful and highly diversified colour-pattern of the upperside. The males
have more bluish-grey above, and the yellow spots of the female are more orange-
coloured.

14. G-ymnetis callispila. (Tab. XXII. fig. 15, c? .)

Brevius quadrata, sat convexa, G. radiicolli similis ; supra laete ochreo-flava (interdum subaurantiaca), nigro-
maculata et plagiata nee maculis in lineas prolongatis sicut in G. radiicolli, fronte macula mediana ;
thorace plaga magna angulata basali (usque ad lobi basin extensa) strigis duabus flavis includente et
antice vitta emittente, lateribus utrinque bi- et antice quadri-maculato ; epimeris antice ochreis, postice
nigris ; elytris maculis plerumque in plagas majores sed irregulares congestis, margine angusto laterali
latioreque apicali flavo immaculate. Subtus d" ochrea, nigro-punctata,'mesosterni medio ventrisque fasciis
medianis quatuor nigris, hirsutie nigra ; $ ventre toto nigro polito. Processus sternalis oblique dependens,
apiee inferiore pauUo curvato.

Long. 21-24 millim. c? $ •

Rab. Mexico, Tem ax in North Yucatan (G^«^«mer).

15. Gymnetis radiicoUis. (Tab. XXII. fig. 14.)

Gymnetis radiicoUis, Burm. Handb. der Ent. v. p. 552 \

Eab. Mexico \ Orizdhsi {Salle). '^[^'' ''■'■'■■''■'■':''' -''''^ /'/K:'^ ^:^

One (female) example in the Salle collection. Besides the difierences of colour-
pattern on the upperside, this species is distinguished from G. callispila by the greyish-
black epimera and under surface, and the more prolonged and narrower sternal
process. ..... . .._.. .... .....

o

58 LAMELLICORNIA.

16. Gymnetis poecila.

Gymnetis poecila, Schaum^ Trans. Ent. Soc. Lond. v. p. 66^ t. 8. fig. 2 (1848) \
Hah. Mexico i, Puebla {Salle), Guerrero {Baron).

17. Gymnetis sallsei.

Gymnetis Sallei, Schaunij Ann. Soc. Ent. Fr. 1849^ p. 255 \
Gymnetis m,armorea, Burm. Handb. der Ent. iii. p. 285 (nee Olivier) ,
Gymnetis tristis, Burm. loc. cit. v. p. 551 (nee Olivier).

Hah. NoETH Amekica, Louisiana i. — Mexico ^ Cordova, Orizaba {Salle), Jalapa,
Playa Vicente {Hoge) ; Guatemala, Escuintla {Conradt).

The large female example from Escuintla has the thorax and mesothoracic epimera
entirely black.

18. Gymnetis stellata. (Tab. XXII. fig. 16.)

Cetonia stellata, Latreille^ in Humb. & Bonpl. Obs. Zool. ii. p. 43^ t. 33. fig. 2.

Gymnetis stellata, Burm. Handb. der Ent. iii. p. 298; Gory & Perch. Monogr. Cetoin. p. 350, t. 70.

fig. 2 \
Macronota radiata, Wiedemann, Analecta Entom. p. 8 ^

Hah. Mexico, Orizaba {Salle), Guadalajara [Hoge); Pai^ama {coll. Bates). — South
Ameeiga 1 2, Santa Marta, Colombia.

The example figured is from Orizaba.

GUATEMALICA.

Guatemalica, Van de Poll, Notes from the Leyd. Mus. viii. p. 138 (1886).
Allorhina, Chevrolat, Ann. Soc. Ent. Belg. xiv. p. 6.

Distinguished from Gymnetis, with which it agrees in the velvety-opaque upper
surface of the body, by the clypeus being narrowed to the front and triangularly (not
very deeply) emarginated at the apex, the spinose-dentate apices of the four hinder
tibiae, and (in the typical species) by the acuminate sternal process curved upwards at
the apex. The abdomen in the males is depressed and longitudinally subsulcate in
the middle.

The following two species only, both peculiar to Central America, are known. The
second differs from G. hueti in the sternal process being shorter, acutely conical, and not
recurved at the apex. '

1. Guatemalica hueti.

Allorhina hueti, Chevrolat, Ann. Soc. Ent. Belg. xiv. p. 6, 1. 1. fig. V.

Hah. Guatemala 1, Cerro Zunil 4000 feet {Chamj)ion); Paj^-ama, Volcan de Chiriqui
3000 to 4000 feet {Ckam;pion).

The underside is similar in both sexes, shining black, glabrous, with small chalky-

GFATEMALICA.— AMITHAO. 359

white or yellow spots on the lateral segments of the metasternum and the sides of the
ventral segments.

2. Guatemalica marginicollis.

Gymnetis marginicollis, Burm. Handb. der Ent. iii. p. 266 \
Hah. Mexico ^ (Salle), Almolonga in Vera Cruz [Edge).

■ Named G. marginicollis, Burm., in the Salle collection, and agreeing with Bur-
meister's description, with the very important exception of the emarginated clypeus,
Burmeister saying expressly " kopfschild vorn aufgebogen, nicht ausgebuchtet." It
is only on the venturesome supposition that Burmeister's specimen had the head of
another species fixed to it that I adopt M. Salle's determination ; one of Herr Hoge's
two examples has also a false head glued to it, apparently the head of a Euphoria.

The chalky-white or yellow markings of the elytra are sometimes separated mostly
into spots, viz. (in a female example) one in the middle of the base on each elytron,
two on the disc nearly side by side behind the middle, a short marginal streak near
the shoulder, another on each side of the scutellum, and a flexuous fascia near the apex
extending from the suture to the outer angle. In two male examples the spots (all in
the same position) are united in streaks, the scutellar stripe with the basal spot, and
the two spots on the disc in an angular band reaching the lateral margin, the subapical
fascia remaining the same. In the male the mesothoracic epimera are entirely opaque
white, and the naked part of the underside is faintly punctured. Burmeister describes
his insect as a male, shining {i. e. glabrous) and rugose beneath, with the hind margins
of the ventral segments at the sides grey: this agrees precisely with our female
specimen.

AMITHAO. "

Amithao, Thomson, Typi Cetonid. p. 11 (1878).
Cotinis (pars), Burmeister, Handb. der Ent. iii. p. 263.
Jfe/aszc^es, Thomson, Le Naturaliste^ i. p. 268 (1880) .

This genus seems to be sufficiently well-defined by its deep and angularly emargi-
nated clypeus, the three more or less spiniform apical teeth of the four hinder tibiae,
and the horizontal sternal process, generally conical but sometimes more elongate and
flattened. The type-species of Thomson {A. lafertei) has, at least in the male, what he
terms a tubercle on the head, "(5 caput tuberculatum;" this no doubt refers to a
prominence which marks the abrupt end of what in Cotinis would be a frontal carina
or horn, but which in Amithao is scarcely elevated. This structure is more pronounced
in another species, A. cavifrons ; but in others it disappears, leaving as a trace of its
termination a small pit near the base of the raised edge of the clypeus. There are
gradations in this structure from species to species, which are not accompanied by any

360 LAMELLICOENIA.

other character of importance. I therefore do not venture to adopt Thomson's genus
Melasictes, the chief justification of which lies in this character, although the descrip-
tion does not point it out.

The genus seems to be peculiar to Central America and the northern parts of South
America.

1. Amithao albopictus. (Tab. XXII. fig. 17.)

Amithao albopictus, Van de Poll, Notes from the Leyd. Mus. viii. p. 233 \
Hab. Panama 1, Chiriqui (ZVo^sc^).

2. Amithao cavifrons. (Tab. XXL fig. 9.)

Cotinis cavifrons, Burm. Handb. der Ent. iii. p. 263 \

Hab. Mexico ^ Toxpam, Cordova {Salle), Misantla (Edge), Atoyac in Vera Cruz
{H. H. Smith) ; Nicakagua, Chontales {Belt, Janson).

A good series of examples. In both sexes the sides of the crovv^n and forehead and
the apex of the bidentate clypeus are more elevated than in A. albopictus, and the pit
in front of the tubercle is broad and deep.

3. Amithao hsematopus. (Tab. XXL fig. 11.)

Stethodesma hcematopus, Schaunij Trans. Ent. Soc. Lond. v. p. 68 \
Desicasta hcematopus, O. Janson, Cist. Entom. iii. p. 147 ^

Hab. Mexico i {Salle) ; Nicaragua, Chontales {Belt, Janson ^).

Two examples, males, perfectly similar. The centre of the forehead is very feebly
convex, and slopes in front into a small but deepish pit near the triangular emargination
of the clypeus ; the latter is strongly bidentate and scarcely reflexed.

4. Amithao thomsoni.

Desicasta Thomsoni, O. Janson, Cist. Entom. ii. p. 302^.
Hab. Panama 1.

Described as allied to A. h(jemato]pus. Not contained in our collections.

5. Amithao metallicus.

Desicasta metallica, O. Janson, Cist. Entom. iii. p. 146 \

Hab. Costa Ricai {Van Patten); Panama, Volcan de Chiriqui 4000 to 6000 feet
{Champion), Y eragu a ^.

6. Amithao pyrrhonotus. (Tab. XXII. fig. 18.)

Gyw»e^«s^2/rrAo/io^a, Burm. Handb. der Ent. iii. p. 267'.
Hab. Mexico i, Mirador {Salle), Cordova {Hoge).

Closely allied to A. hcematopus and similar in form and size (26-28 millim.), but the

AMITHAO.— DESICASTA. 361

head and thorax are very much smoother, and the whole upper surface tawny-red with
a golden tinge, and highly polished ; the sternal process is elongated, flattened, and
slightly curved upwards at the tip. The clypeus has a much shallower emargination,
and the convexity of the middle of the forehead is slight and slopes in front into a
moderately deep pit. The front and lateral margins of the clypeus differ also in being
sharply raised.

7. Amithao erythropus, (Tab. XXII. fig. 19.)

Cotinis erythropus, Burm. Handb. der Ent. iii. p. 263^.

Var. Supra immaculata.

Cotinis moreletii, Blanch. Cat. Coll. Ent. i. p. 33 ^ ?

Hah. Mexico ^ 2, Cordova, Toxpam, Tanetza {Salle), Jalapa (Hbge) ; Guatemala,

Panzos in Vera Paz (Conradt).

The forehead and clypeus are shaped nearly the same as in A. pyrrhonotus, but the
sternal process differs in being short and conical. The legs in all our examples (except
an immature one) are black. An example in the Salle collection is entirely without
white tomentose markings, and agrees with Blanchard's description of G. moreletii,
except in the black legs.

A specimen from Panzos is figured.

DESICASTA.

Desicasta, Thomson^ Typi Cetonid. p. 14 (1878) .
Moscheuma, Thomson^ Le Naturaliste^ i. p. 268 (1880).
Stethodesma (pars).

After defining the genus somewhat imperfectly in 1878, Thomson redescribed it
more intelligibly in 1880, re-naming it and giving the same species as belonging to it.
The only character which distinguishes it from Amithao is the obliquely deflected and
thick sternal process, described by Thomson as " mesosterni appendix robustissima sat
elongata, paullo subtus directa, apice rotundato." I), lohata (Oliv.), a well-known species
from Guiana, is included both in Desicasta and Moscheuma by the author, also
D. scuiptilis, Thoms. (the type of Desicasta), the description of which offers nothing to
distinguish it from D. lohata and D. reichei, Thoms. Under Desicasta is further enume-
rated D. hwmatopus of Schaum, which does not agree with the others in the form of
the sternal process.

The genus appears to be confined to Colombia (with Panama) and Guiana. D. lohata
(Oliv.) and D. sehosa (Van de Poll) are also found on the Lower Amazons.

1. Desicasta Isevicostata.

Moscheuma lavicostatum, Van de Poll^ Notes from the Leyd. Mus. viii. p. 235 \ .
Hah. Panama 1.

I have not seen this species.
BIOL. CENTE.-AMEE., Coleopt., Vol. II. Pt. 2, March 1889. 3 AA

362 ,, LAMELLICOENIA.

STEPHANUCHA.

Stephanucha, BxLrmeisier, Handh. der lEnt. iii. Tp. 394i {1S4!2) . '

Euphoria (pars)^ Horn, Proc. Am. Phil. Soc. 1879, p. 398. .;,

A North-American genus, of which three species have been described. The following
differs from the generic type in the clypeus having only two spiniform teeth at the
apex instead of four ; but in the rounded thorax (entire near the scutellum), the short
narrow mesosternal process, and the strongly elevated exterior ridges of the four hinder
tibiee, iu the middle pair bicuspid, the species accords with Ste;phanucha. Although
the clypeus has only two teeth at the tip, there is a trace of another on each side in the
distinct angle formed on the abrupt narrowing of the clypeus towards the apex.

1. Stephanucha bispinis.

Evplioria verticali (Horn) affinis ; differt corpore toto fulvo-pubescenti, supra breviter et erecte, subtus dense et
longe, villosa; brevis, ovata, nigra vel [immatura (?)] rufescens ; clypeo curvilineariter (juxta apicem
abrupte) angustato apieeque dentibus duobus acutis erectis ; capite supra concavo, dense rugoso-punctato,
vertice tuberculo valido ; thorace late ovato, lateribus cum angulis posticis rotundatis, dense striguloso-
punctatn et erecte pubescenti, linea dorsali Isevi, postice prope scutellum obtuse truncate ; elytris costis
duabus laevibus interstitiis sublineatim et sat dense umbilicato-punctatis, quam tborax pauUo sparsius
pubescentibus ; pygidio ( c? lato convexo, $ subplano) pauUo dense transversim subrugulose punctato,
pubescenti. Pedes cum tarsis breves ; tibiae anticae, S 2 ? dentibus gracilibus acutis exstantibus tribus,
4 posticse, praecipue in § , medio extus grosse dentatis vel bidentatis. Processus sternalia brevis, apice
truncato.

Long, 14 millim. d" $ . •

Ilab. Mexico, Ventanas in Durango 2000 feet, Ciudad in Durango 8100 feet (Forrer)^

Evidently closely allied to Euphoria verticalis, Horn, but differing, besides the dense
pubescence, in the broader clypeus, each side of which, near the apical teeth, is sub-
angulated owing to the suddenly increased narrowing.

EUPHORIA.

Euphoria, Burmeister, Handb. der Ent. iii. p. 370 (1842) ; Horn, Proc. Am. Phil. Soc. 1879, p. 397.

Erirhipis, Burmeister, loc. cit. p. 385.

Euryomia (pars), Lacordaire, Gen. Col. iii. p. 527.

A genus difficult to define, though the same may be said of many other genera of
Cetoniidse which have hitherto been generally admitted. It comprises nearly all the
" Cetonides vraies " of Lacordaire found in America, all of medium or small size, and
differing greatly in colours and style of markings and in the shape of the clypeus and
other structural features on which systematists rely for generic characters in this
difficult family. The clypeus especially presents in different species the various forms
characteristic of many distinct genera of the Old World, such as Cetonia, Euryomia,
Elaphinis, and others; and this was chiefly, no doubt, the cause of Lacordaire's too

EUPHOEIA. 363

hasty conclusion that Euphoria was admitted only on considerations of geographical
distribution, and that it should be merged together with numerous Old- World genera
under Euryomia. Dr. Horn, rightly, considered that the author of the ' Genera ' in
this proceeded too far. On the examination of a large series of species and individuals
it is found that the clypeus in this group is exceedingly variable : first, to a minor but
still considerable extent among individuals of the same species, and, next, in various
degrees from one closely allied species to another ; the variability of this important
member may in fact be adduced as one of the characters of the genus, the variations
being modifications of a certain typical form, i. e. narrowed anteriorly with the apical
margin more or less reflexed and sinuated. The most constant structural feature is
that of the mesosternal process, which is always horizontal and more or less dilated
and rounded at its apex.

About 45 species have been described, the great majority from the United States
and Mexico.

1. Euphoria lesueuri.

Cetonia Lesueur, Gory & Perch. Monogr. Cetoin. p. 212, t. 39. fig. 1 ( ? )\
Euphoria Lesueurii, Burm. Handb. der Ent. iii. p. 372 ( ? ) ^.
Cetonia Latreille, Gory & Perch, loc. cit. p. 213, t. 39. fig. 3 (cJ)\
Euphoria Latreillii, Burm. Handb. der Ent. iii. p. 373 *.

Hah. Mexico 1234^ Orizaba, Juquila, Capulalpam, Tepansacualco (Salle), Jalapa,
Almolonga (Edge) ; Guatemala, Sinanja and Purula in Vera Paz (Champion), Cohan in
Vera Paz (Conradt).

A large series of examples. M. Salle took E. latreillei and E. lesueuri in copula, and
convinced himself that the former (velvety-opaque above and generally smaller) is the
male of ^. lesueuri, distinguished by its glabrous and shining thorax, more spotted
elytra, and generally larger size. The external characters of the male, one or other of
which is commonly present in the Cetoniidse, fail entirely in this species, the pygidium
only showing a slightly greater convexity in some examples ; but on dissection, examples
of E. lesueuri are found to be males. The species varies in colour from green to dark
purple and olivaceous-black, and the size from 16 to 22 millim.

2. Euphoria westermanni.

Cetonia Westermann, Gory & Perch. Monogr. Cetoin. p. 212, t. 39. fig. 2 (c^)'.
Euphoria Westermanni, Burm. Handb. der Ent. iii. p. 374 (J)'.

Hah. Mexico ^ ^, South Mexico (Sturm, in coll. Salle}, Juquila (Salle).

Three examples, males, all agreeing in the long and rather dense pubescence on the
forehead, sides of the thorax, and under surface of the body, two of them in the tubercle
on the crown and the long antennal club-characters which Burmeister adduces as distin-

3 AA 2

364 LAMELLICORNIA.

guishing this species. But they also agree in the gibbous convexity of the pygidium,
which Burmeister does not mention, but which Gory and Percheron specify as a
characteristic of their E. latreillei. The three examples are all green. The differences
in colour and in the frontal carina, as well as in other numerous points enlarged on by
Burmeister, are not of the slightest value, as they exist in all gradations in E. lesueuri.
Many male examples of the latter species show traces of pubescence on the sides of the
thorax. I doubt very much if the E. westermanni of Burmeister is the same as Gory
and Percheron's species of the same name, as it does not agree either with their
description or their figure, especially with regard to the spinose sutural apices' of the
elytra; it is possible that this character may be variable, but none of our specimens
show any distinct trace of it. .

3. Euphoria steinheili.

Euphoria Steinheili, O. Janson, Cist. Entom. ii. p. 303 \

Hah. Panama i, Yolcan de Chiriqui 2000 to 3000 feet {Champion).

Two male examples, with the abdomen longitudinally depressed and subsulcate and
the pygidium nearly plane.

4. Euphoria candezei. (Tab. XXIIT. fig. 3.)

Euphoria {Erirhipis) Candezei, O. Janson, Cist. Entom. i. p. 375, t. 9. fig. 5 (1875) \
Euphoria belti. Sharp, Journ. Linn. Soc, Zool. xiii. p. 137 (1877)^

, Hob. Guatemala (Salle), San Geronimo (Champion), Cohan in Vera Paz (Conradt) ;
NiCAEAGUA, Chontales (Belt ^, Janson ij ; Costa E,ica ( Van Patten), Volcan de Irazu
(Rogers).

II.

6. Euphoria leucographa.

Cetonia leucographa, Gory & Perch. Monogr. Cetoin. p. 208, t. 38. fig. 1 ^.
Cetonia Reich, Gory & Perch, loc. cit. p. 210, t. 38. fig. 3 ^ ?
Euphoria leucographa, Burm. Handb. der Ent. iii. p. 375 ^

Hah. Mexico ^ ^ ^, Vera Cruz, Tuxtla, Etla, Capulalpam, Oaxaca (Salle), Jalapa,
Almolonga, Misantla, Guadalajara, Chilpancingo in Guerrero (Hoge), Acapulco (J. J.,
Walker).

Var. Cetonia rujina. Gory & Perch. Monogr. Cetoin. p. 206, t. 37. fig. 5 \

Eufescens cupreo-tincta, thorace plerumque plagis duabus nigro-seneis.

Hah. Mexico i. Northern Sonora (Morrison), Pinos xlltos in Chihuahua (Buchan-
Hephurn), Durango city, Ventanas in Durango, Zapotlan in Colima, Iguala and Chil-
pancingo in Guerrero, Tacambaro in Michoacan, Matamoros Izucar in Puebla, Cordova,
Almolonga, Mexico city (Hoge), Guanajuato, Puebla (Salle).

A great number of examples. The species varies much in colour — dark bluish,

EUPHOEIA. 365

brassy-green, coppery, and tawny-red with coppery-red gloss ; also in the form of the
clypeus, which assumes such a diversity of outline in individuals otherwise so nearly
alike that no other proof is necessary of the unreliability of this part for classificatory
purposes in the group of Cetoniidse to which this genus belongs — it is most frequently
rather elongate, curvilinearly or rectilinearly narrowed, with reflexed sub-bidentate
apex ; from this it rapidly varies to trapezoidal and to semiovate with or without
strongly raised margins and entire apical border, and to short and transverse with high
and entire margins. The variety rufina will be seen, from the localities enumerated
above, to have a more northerly or elevated range than the type-form, and it is often
much more densely pubescent above, but insensible gradations connect the two forms.

6. Euphoria limatula.

jEMj»Aon« /ma/M/a_, 0. Janson, Cist. Entom. ii. p. 585 \

Hab. Mexico, S.W. Yucatan {Br. Horn); Guatemala i {Salle), Aceytuno 5100 feet
{Salvin), San Geronimo {Champion); Nicaeagua, Chontales (^e^i^) ; Costa Kica {Van
Patten).

A good series of examples. The prevailing colour is, as the author describes it, dark
greenish-blue, but it varies, and a rufous variety (like that of E. leucogra^pha) is not
uncommon. The species scarcely differs from E. leucographa, except in the sparser
punctuation and impunctate dorsal vitta of the thorax, and in the generally shorter
clypeus, which latter varies in the sinuation of the apex, but less so than in E. leuco-
grajpha. The transverse chalky spots on the sides of the ventral segments exist only in
a few examples of the male, and the metasternum has sometimes on each side, visible
under the long grey pubescence, a few large scale-like whitish spots.

7. Euphoria yucateca.

E. limatulce proxime afflnis, sed differt bre-vius oblongo-ovata, thorace et elytris adhuc sparsins punctatis, meta-
sterno ventreque in <S lateribus late cretaceo-albis illo vix hirsute. Cyanescenti-viridi-senea, raro obscure
cuprascenti-senea, elytris sicut in afflnibus cretaceo-maculatis et thoracis lateribus latius albo-vittatis;
clypeo ssepe seneo, obtuse quadrato vel semiovato marginibus parum reflexis, apice interdum sinuato, ssepe
maculis duabus cretaceis ; thorace sparsissime punctate, medio laevi ; elytris sparse arcuatim (lateribus
strigulatim) punctatis ; pygidio maculis duabus grossis cretaceis ; pectore multo brevius cinereo-hirsutis,
metasterno lateribus in ^ fere toto, in $ maculatim cretaceo, ventre utrinque in c? late, in $ maculis
tan turn parvis lateralibus, cretaceis.

Long. 12-15 millim. J § .

Hab. Mexico, Temax in North Yucatan {Gaumer). •

A large number of examples. According to the description and figure of Gory and
Percheron this species must resemble E, bivittata of Guiana; but in no example is
there a trace of the two cretaceous vittae of the disc of the thorax which distinguish
E. bivittata.

Obs. — There is an example of E. lurida (Fabr.) in the Salle collection labelled

366 LAMELLICOENIA.

" Mexico ;" but as this species seems to be restricted to Southern Brazil it is to be
suspected that the locality in this case is an error.

111. '

8. Euphoria lineoligera. (Tab. XXIII. fig. 4.)

Euphoria lineoligera, Blanch. Csit. Coll. lint. i. -p. IS {1^50) \
Euphoria xanthomelas, Thomson, Typi Cetonid. p. 26 (1878) ^

Hah. Mexico 2 (Ghiesbreght ^), Ventanas (Forrer), Hacienda de Bleados in San Luis
Potosi (Dr. Palmer), Villa Lerdo in Durango, Aguas Calientes city, Guadalajara,
Cuernavaca (Edge), Guanajuato, Orizaba [Salle).

In this species, like all others of Group III., the clypeus is plane with very narrow
and scarcely reflexed margins.

9. Euphoria biguttata. (Tab. XXIII. fig. 2.)

Cetonia bi-guttata, Gory & Perch. Monogr. Cetoin. p. 274, t. .53. fig. 4\
Euphoria biguttata, Burm. Handb. der Ent. iii. p. 384 ^.

Hah. Mexico ^ 2, Cordova, Orizaba, Izucar, Vera Cruz (Salle), Jalapa, Mexico city,
Oaxaca, Tonila, Zapotlan in Colima (Hoge), Cuernavaca (H. H. Smith, Hoge) ; Guate-
mala (Salle), El Jicaro, Escuintla, Capetillo (Champion), Chimaltenango (Conradt).

10. Euphoria canescens.

Cetonia canescens, Gory & Perch. Monogr. Cetoin. p. 277, t. 54. fig. V.
Euphoria canescens, Burm. Handb. der Ent. iii. p. 383^.

Hah. Mexico ^ ^, Puebla, Orizaba, Guanajuato (Salle), Jalapa, Matamoros Izucar in
Puebla, Lagos in Aguas Calientes (Hoge) ; Guatemala, Tocoy (Champion).

11. Euphoria leucopyge.

E. dimidiatce similis, at differt elytris apice pygidioque dense albido-tomentosis, hoc apice nudo nigro ; nigro-
nitida, elytris dimidio basalt sanguinea margineque juxta scutellum breviter anguste nigro-marginato ;
capite dense confluenter punctato ; clypeo sat elongate, medio dilatato, apice late, subtruncato, anguste
reflexo, marginibus lateralibus baud reflexis ; tborace dense confluenter punctato, disco postice Iseviore, lobe
basali vix producto, late et parum emarginato ; elytris mediocriter punctatis ; subtus birsutie fulva, ventre
utrinque marginibus anticis solum birsutis. Processus sternalis brevis apiceque dilatatus et obtusissime
rotundatus.

Long. 14 millim.

Hah. Mexico, Hacienda de Bleados in San Luis Potosi (iJr. Palmer), Alamos (Buchan-
ZTe^Jz^r^i), Yentanas in Durango (i^orrer).

The clypeus does not essentially diflPer from that of PI. dimidiata, in which species it
is very variable in length and outline.

EUPHORIA. 367

12. Euphoria dimidiata.

Ce^oma c?mic?ia/a, Gory & Perch. Monogr. Cetoin. p. 275, t. 53. fig. 7 \
Euphoria dimidiata, Burm. Handb, der Ent. iii. p. 380^.

Hah. Mexico ^ 2, Hacienda de Bleados in San Luis Potosi [Dr. Palmer)^ Orizaba,
Cordova, Vera Cruz, Guanajuato [Salle), Jalapa, Atlixco, Tonila in Colima (Hoge);
Guatemala (Salle), San Joaquin, San Geronimo, Tocoy [Champion), Chimaltenango,
Escuintla [Conradt).

In all the very numerous examples the apex of the elytra and the pygidium are
clothed with silvery-grey setose hairs, with no trace of the compact tomentum of
E. leucopyge.

13. Euphoria pulchella. (Tab. XXIII. fig. 6.)

Ce/oma jyM/cAe//«, Gory & Perch. Monogr. Cetoin. p. 279, t. 54. fig. 4 \

Euphoria pulchella, Burm. Handb. der Ent. iii. p. 381^.

Cetonia ferrugata, Gory & Perch. Monogr. Cetoin. p. 276, t. 53. fig. 8 [C. pulchella, var., Burm.

loc. cit.)^
Cetonia Children, Gory & Perch. Monogr. Cetoin. p. 275, t. 53. fig. 6 *.
Euphoria Childrenii, Burm. Handb. der Ent. iii. p. 382 \
Cetonia Thelasco, Gory & Perch. Monogr. Cetoin. p. 279, t. 54. fig. 5 [E. Childrenii, var., Burm.

loc. cit.) ^
Cetonia Montesuma, Gory & Perch. Monogr. Cetoin. p. 277, t. 54. fig. 2 [E. childrenii, var,, Burm .

loc. cit.)''.

Hah. Mexico 1234567^ Pinos Altos in Chihuahua {Buchan-Hepburn), Ventanas
{Forrer), Cordova, Orizaba, Vera Cruz, Toxpam, Oaxaca [Salle), Almolonga, Chilpan-
cingo in Guerrero, Sayula in Jalisco [Hbge), Misantla {F. D. G.), Teapa, Atoyac
(H. E. Smith) ; Guatemala (Salle), San Geronimo, Chacoj in Vera Paz (Champion),
Tactic, Cohan (Conradt); Nicaeagua, Chontales (Belt).

Most of the colour-varieties of this very variable species figured by Gory and Per-
cheron were captured at Almolonga by Herr Hoge, and others equally or more distinct
appear in other Mexican localities. The examples from Guatemala are similarly
variable in colour and markings, and they do not form a distinct local form.

14. Euphoria basalis.

Ce/oma 6a5a/i5, Gory & Perch. Monogr. Cetoin. p. 274, t. 53. fig. 5 \
Euphoria basalis, Burm. Handb. der Ent. iii. p. 380 ^

Eab. Mexico ^ ^, San Luis Potosi (Dr. Palmer), Chihuahua city, Sayula in Jalisco,
Chilpancingo, Tacambaro in Michoacan, Esperanza, Jalapa (Edge), Puebla, Cordova,
Parada, Guanajuato, Toxpam, Cuernavaca, Oaxaca (Salle).

368 LAMELLICOENIA.

IV. ^ ' ■ •■■■■^^■■/",

15. Euphoria chontalensis. (Tab. XXIII. fig. 10.)

E. morosce (Jans.) proxime affinis, sed difFert inter alia thorace scutelloque politis nigro-seneis. Oblongo-
quadrata, nigro-^nea, elytris solum opacis maculis plurimis transversis undulatis fulvis; supra capite
densius, elytris sparsius, fulvo-setosa ; subtus hirsutie sat rigida fulva ; capite densissime punctate, clypeo
props apicem angustato apiceque alte reflexo nee siauato ; thorace disco sparsius, lateribus densius areuato-
punctatis, basi medio Isevi, lobo basali sat fortiter emarginato ; elytris utrinque costis duabus validis
impunctatis, interstitiis distanter lineatim punctatis, apice suturali baud producto; pygidio sat dense
setose, crebre striguloso, nigro-seneo, maculis utrinque fulvis (interdum deficientibus). Processus sternalis
brevis et latus, antice rotundatus. TibiaD anticse d" acute tridentatae, duobus apicalibus approximatis et
exstantibus, 3° valde remoto. Antennae (S clava elongata, caeteris articulis conjunctis vix brevier.

Long. 17 millim.

Hah. NiCAEAGUA, Chontales (Belt).
Five examples, apparently all males.

16. Euphoria precaria.

Euphoria precaria, O. Jansoiij Cist. Entom. ii. p. 583 \

ffab. Panama, Chiriqui (Trofsch), Bugaba, Tole (Champion). — South Ameeica,
Colombia \

Closely allied to E. iridescens, Schaum. One of our examples agrees with Janson's
description with regard to the elytra being of a dark olive-green ground-colour (like
the rest of the body), with some small obscure yellowish spots on the elytra ; but in
others there is as much dark yellow spotty-colouring on the elytra as dark green, and
the sides of the elytra especially are yellow with a series of large, quadrate, but
irregular, dark green spots. The thorax is dark green, with a fine dorsal line and a
small basal spot on each side yellow ; but in one example the thorax has four dark-
green vittae as in E. iridescens.

17. Euphoria iridescens. (Tab. XXII. fig. l.)

Euphoria iridescens, Schaum^ Analecta Entomologica, p. 45 ^ ; Burm. Handb. der Ent. iii. p. 388.

Rah. Mexico, Puebla, Izucar (Salle), Guerrero (Baron); Guatemala^ (Salle),
Mirandilla 1700 feet, Aceytuno (Champion).

V.

18. Euphoria leprosa.

Euphoria leprosa, Burm. Handb. der Ent. iii. p. 379 \

Eah. Mexico \ San Andres Tuxtla (SallS), Atoyac in Vera Cruz (H. H. Smith).

The form of the clypeus is intermediate between that of Section IV. and that of
Section VII. There are two varieties of this species in our small series : —

1. Smaller and narrower, dull black, with three narrow chalky- white vittae on the

' EUPHORIA. 369

tborax, and numerous small and narrow transverse white spots on the elytra. This
appears to be the form described by Burmeister.

2. Eather larger and broader. Ochreous, with two broad black vittse on the disc of
the thorax, and the elytral costae, and numerous marks in the interstices, black. The
antennal club in the male is considerably shorter than joints 1-7.

.■;■• yi. '^^ .. . ■ :,■■•:■■ ' ■

19. Euphoria mystica. (Tab. XXIII. fig. 5.)

Euphoria my stica, Thomson, Tjigi Cetonid. 1^. 27^.

Hah. Mexico, Orizaba, Cordova (Salle), Jalapa (H'oge) ; Guatemala, Coban in Vera
Paz (Conradt).

Thomson's description is taken from an unusually small specimen (12^ millim.) ; the
numerous series before me (which includes examples named by Salle) range from
14 to 18 millim., the smallest being males, brassy-black, with the elytra thickly
sprinkled with confluent transverse and undulated fulvous spots. The females much
resemble U. precaria, and the species connects Section IV. with the present group, to
which it belongs by the clypeus being in the male narrowly quadrate, with the apical
margin strongly reflexed, and more or less deeply sinuated, sometimes almost bidentate,
in the female shorter and less reflexed. The upper surface in fresh specimens, especially
in the male, is rather densely erect pubescent, the thorax and scutellum shining, and
the elytra opaque. The more or less thickly punctured and large scutellum is an excellent
distinguishing character. The antennal club is elongated in both sexes, in the male
about one fourth longer than joints 1-7 taken together. The thorax, as usual in this
group, difi'ers in form in the two sexes, but not in all examples — in the male being
gradually narrowed (with a slight sinuation) from the base to the apex, in the female
strongly rounded about the middle. The female varies much in colour — the head,
thorax, and scutellum being more or less rufous, with a strong metallic gloss, and
sometimes metallic green vittae, and the elytra fulvous, with numerous small transverse
confluent spots, or, in extreme cases, almost spotless. ,

20. Euphoria ?

llab. Guatemala, TuyuIb. (Champion).

A single female example, discoloured, apparently distinct from the preceding.

21. Euphoria submaculosa.

Cetonia submaculosa, Gory & Perch. Monogr. Cetoin. p. 211, t. 38. fig. 6'.
Erirhipis submaculosa, Barm. Handb. der Ent. iii. p. 392 ^

Had. Mexico ^ ^, Orizaba (Salle), Jalapa (Hbge), Cordova (Salle, Edge),
BIOL. CENTE.-AMEE., Coleopt., Vol. II. Ft. 2, March 1889. 3 BB

370 LAMELLICOENIA.

Velvety-opaque ; generally green, but sometimes coppery ; elytra often concolorous,
but in most examples with a few or numerous transverse tawny-red spots ; when thickly
spotted the thorax is also obscure tawny-red, with the disc or two vague dorsal vittse
green. The clypeus is nearly square, ^. e. parallel-sided, with the margins raised and
the apex more or less sinuated.

22. Euphoria avita. (Tab. XXIII. figg. 8 ; 9, var.)
Euphoria avita, O. Janson, Cist. Entom. ii. p. 584 \ '

Kdb. Guatemala! (^SalU), Las Mercedes, Cerro Zunil, Calderas, Duenas {Champion),
Chimaltenango {Conradt). '

Differs from E. mystica in its much smaller size and opaque thorax and scutellum, the
latter being smooth, with the exception of a puncture or two near the base. In most
respects it is much more nearly allied to E. vestita, from which it differs in the
clypeus being narrower, much longer, and more reflexed-sub-bidentate at the apex.
E. avita is of rather smaller and more slender form, and offers a somewhat different
range of variation ; some examples being dull dark green, a triangular spot on the basal
lobe of the thorax and a few transverse undulating spots on the elytra only being
fulvous, in which state it resembles a small E. submacuhsa. The clypeus in both
sexes is as described under E. mystica. In the great majority of examples the elytra
are fulvous, with very numerous blackish spots, the thorax blackish with a dorsal
line, and a discal spot on each side, and the base fulvous, and in many the lateral and
anterior margins are also of the same colour. The antennal club in the male is rather
longer than joints 1-7 taken together. The anterior tibiae are tridentate in both sexes,
the upper tooth sometimes very short in the male.

23. Euphoria Mveola. (Tab. xxiii. fig. 7.)

Convexiuscula, Isetius Mva, pubescens, opaca, thoracis disco utrinqiie signatura flexuoso-trilobata (interdum
interrupta), elytrisque maculis mimerosis parvis et majoribus bio illic confluentibus, nigro-fuscis ; clypeo
( c? $ ) quadrato, lateribus fere parallelis, marginibus reflexis, apicali lato medio depresso-sinuato ; thorace
( c? 2 ) trapezoidali, basi lato medioque arcuatim emarginato ; scutello fulvo, impunctato ; pedibus, ventre
et antennis rufescentibus, nitidis, c? • Antennarum clava articulis l^-T"" conjunctis paullulum longior ;
tibise antica^ acute tridentatse. ? . Antennarum clava articulis l°-7™ paullo brevior ; tibiae anticse latse et
latius tridentatse.

Long. 13-15 millim.

Half. Mexico, Zacualtipan in Hidalgo, Oaxaca {H'dge).

The rather clearer orange-tawny colour distinguishes this species from E. vestita,
besides the striking difference in the size of the antennal club and armature of the
anterior tibiae in the male. The shorter, broader, and squarer clypeus distinguishes it
from E. avita. The markings of the thorax are the same as in the clear-coloured
examples of both the other allied species. There is scarcely any difference in colour
or markings in the seven examples examined.

EUPHOEIA. 371

24. Euphoria nigriventris,

E. vestitce affinis et similariter colorata, sed differt statura minore, magis quadrata, subdepressa, thorace medio
basi vix emarginata, c5" antennarum clava mediocri, sed articulis l°-7™ conspicue longioribus tibiisque anticis
sat latis tridentatis. Subtus nigro-nitida pedibus concoloribus ; clypeo antice minime vel baud dilatato,
fere quadrato, margine apicali medio pauUo sinuato ; thorace obtuse trapezoideo, medio pauUo rotundatim
dilatato, deinde usque ad basin lateribus pauUulum sinuatis, opaco, dense piloso, fulvo, vitta lata utrinque
discoidali (intus recta extus dilacerata) nigro-viridi ; scutello opaco, impunctato; elytris obtuse costatis,
subtilissime punctulato-striatis, fulvis, nigro-viridi (plerumque transversim) maculatis ; pygidio dense
■ confluenter striguloso.

Long. 11-12 millim. c? .

ffab. Mexico, Peras, Etla (/S'«/Z^), Jalapa (^o^e).

The more typical examples are from Jalapa. Two from Etla and Peras are distinctly
more elongate and are darker, the broad dull greenish-black thoracic vittse invading
nearly the whole surface. Eight examples, males,

25. Euphoria quadricoUis.

E. nigriventri maxime affinis ; difFert magis elongata, thorace ante medium angulatim dilatato deinde ad basin
lateribus parallelis, medio basi sicut in E. nigriventri minime emarginato ; quoad colores vix differt,
ventre rufo-nitido excepto. c? • Antennarum clava articulis l"-?"'' pauUo longior ; tibiae anticse angustse,
sicut in E. geminata, dentibus duobus parvis prope apicem, 3° superiore obsolete.

Long. 12 millim. S •

Hah. Mexico, Durango city (Edge).
Two male examples, perfectly similar.

26. Euphoria atra.

Quoad formam E. nigriventri simillima, sed toto atra, supra opaca, subtus nitida, dense griseo-pubescens ; thorace
medio basi distincte sed minus quam in E. vestita sinuato ; elytris fortiter costatis. S • Antennarum
clava articulis l"-?'" pauUo longior ; tibiae anticae tridentatae, dente 3° minore acuto, remoto.

Long. 12 millim. c? •

Hab. M^Kico, Veras (Salle), Osixn,ca {Iloge).
Three examples, all males.

27. Euphoria vestita.

Cetonia vestita, Gory & Perch. Monogr. Cetoin. p. 271, t. 52. fig. 6\ .' ,

Cetonia irregularis, Gory & Perch, loc. cit. p, 272, t. 53. fig. 1' (nee Olivier). .
Erirhipis vestita, Burm. Handb. der Ent. iii. p. 387 ^

Hab. Mexico ^ ^ ^, Oaxaca, Capulalpam, Peras (Salle), Jalapa (Edge), Cuernavaca
(H.H.Smith); Costa Rica, Cache (i?o^ers).

Burmeister describes this species as having, in the male, an excessively large antennal
club and nearly simple anterior tibiae. A few male examples answering to this
description, with females corresponding in size and colour, have been received from
the above-mentioned localities. The figures cited from Gory and Percheron represent

3BB2

372 . LAMELLICOENIA.

females, and are indeterminable, but in general form and markings they agree with
this species. E. vestita is larger (15 millim.) than any of the preceding species, and
more convex and elongate-ovate in the males, this sex having the antennal club twice
the length of the remaining joints, and correspondingly broad. The thorax is trape-
zoidal, but rather elongated, and is strongly arcuate-sinuate in the middle of the base.

28. Euphoria eximia.

c? . Oblonga, virescenti-nigra, supra opaea, breviter erecte pilosa, thorace vitta utrinque marginal! pygidioque
maculis duabus magnis, cretaceo-albis ; thorace maculis tribus basalibus elytrisque maculis mimerosis et
fascia maculari ante apicem rufo-aurantiacis ; corpora subtus nigro-polito, ventris segmentis l°-5™ utrinque
cretaceo-albo fasciatis ; capite nigro, confluenter punctato, clypeo valde elongato lateribusque rotundatis,
margine mediocriter reflexo apicali medio depresso-sinuato. Antennarum clava maxime elongata ; tibiae
anticae graciles, prope apicem breviter bidentatse. Processus sternalis brevis et valde dilatatus, apice pauUo
rotundato. -

Long. 14 millim.

Hah. Costa Eica (Salle, Van Patten). Two examples only, both males.

29. Euphoria humilis.

Euphoria humilis, Blanchard^ Cat. Coll. Ent. i. p. 13 \

Rab. Mexico ^ {Salle, ex coll. Sturm), Peras (Salle), Oaxaca (Edge).

Closely allied to E. atra, but larger, more oblong, and always glabrous above and
beneath, generally black ; the antennal club in the male is scarcely longer than joints
1-7 ; the scutellum is shining, and more or less punctured, the punctuation generally
confined to the base ; the elytral costee are narrower and more strongly elevated ;
and the grey pubescence of the under surface is dense on the sides of the ventral
segments. Some examples have traces of reddish spots at the base (sometimes at the
sides) of the thorax and on the elytra, or are reddish-tawny, with two broad dusky vittae
ou the thorax and the elytra marbled with dusky ; these specimens are not easily to
be distinguished from abraded examples of E. vestita, the sinuation of the basal lobe
of the thorax is, however, considerably less.

«

30. Euphoria subguttata.

Erirhipis subguttata, Burm. Handb. der Ent. iii. p. 392.
Hab. Mexico 1.

This species is not contained in our collection. It is compared with the North-
American E. fulgida, but is stated to be opaque above, emerald-green or golden-
coppery, with the limb of the thorax and numerous spots and the apical margin of the
elytra white.

EUPHOEIA. 373

- VII.

31. Euphoria geminata.

Cetonia geminata, Chevr. Col. Mex. Cent. ii. fasc. 5, no. 107 \
Erirhipis geminata, Burm. Handb. der Ent. iii. p. 386 1

Hob. Mexico i 2, Ventanas in Durango {Edge, Forrer), Vera Cruz (Salle), Tonila in
Colima, Colima city, Tapachula in Chiapas (Edge) ; Guatemala, Tactic (Conradt).

The unicolorous black variety described by Burmeister is distinguishable from
E. atra by the two chalky-white spots of the pygidium, and the much narrower and
elongate form. A beautiful variety was captured by Hoge at Colima city, black, with
the thorax broadly margined with rich red. The typical form was found by Hoge in
great profusion at Tapachula, on the lower part of the Pacific slope.

The form of the clypeus differs from that of the species included in Section VI. in
the apical margin being greatly elevated, and deeply emarginated in the middle. The
male anterior tibiae are long and slender, often with only one (terminal) tooth, and
when bidentate the upper tooth is obtuse, and separated from the apical one by a deep
sinuation. This structure is quite different from that of E. vestita and E. eximia of
Section VI.

VIII.

32. Euphoria inda.

Scarab(BUS indus, Linn. Mus. Lud. Ulr. p. 27 ; Syst. Nat. i. 2, p. 556.

Cetonia inda, Oliv. Ent. i. 6, p. 39, t. 5. fig. 29.

Erirhipis inda, Burm. Handb. der Ent. iii. p. 389 \

Euphoria inda, Horn, Proc. Am. Phil. Soc. 1879, p. 407 ^.

Cetonia barbata, Say, Journ. Acad. Phil. ii. p. 239 ^

Cetonia brunnea, Gory & Perch. Monogr. Cetoin. p. 267, t. 51. fig. 6*.

Eah. North Ameeica ^ ^ ^ east of Rocky Mountains^.— Mexico 1, Puebla, Guana-
juato, Chalchicomula [Salle), Mexico city, Zapotlan in Colima [Edge).

Mexican examples are, on the average, smaller than those from the Eastern States ;
I can detect no other general difference.

33. Euphoria subtomentosa.

Cetonia subtomentosa, Mannerh, Bull. Mosc. viii. p. 135 (1837).

Erirhipis subtomentosa, Burm. Handb. der Ent. iii. p. 390 \

Cetonia tomentosa. Gory & Perch. Monogr. Cetoin. p. 278, t. 54. fig. 3 ^

Eah. Mexico ^ 2, Puebla, Parada, Guanajuato, Izucar, Oaxaca {Salle), Guadalajara,
Cuernavaca, Zapotlan in Colima (Edge).

34. Euphoria histrionica.

Euphoria histrionica, Thomson, Typi Cetonid. p. 27 \
Eab. Mexico 1, Cordova (Salle).

374 LAMELLICOENIA.

Var. E. sonorce. Angustior, scutello utrinque multipunctato.

Eah. ^oTiionA {coll. Bates). > r

Allied to U. suUomentosa. The clypeus is short and broad, but not quite so broad
or rectangular as in that species. The elytral costse (especially the outer ones) are not
nearly so elevated, and the ochreous spots are not arranged in three longitudinal rows,
but are in extremely irregular and variable transverse macular streaks; the apex is
broadly ochreous, with a denuded spot in the centre, and there are some transverse
streaks on the lateral margins almost as in E. lineoligera. In fact E. histrionica seems
to connect the last-named with E. suhtomentosa. The antennal club in the male is as
long as joints 1-7, but still not notably elongated, as the whole antenna is short.

35. Euphoria kerni.

Euphoria Kernii, Haldeman, Stansbury's Explor. p. 374, t. 9. fig. 10 ; Leconte, Proc. Acad. Phil.

1853, p. 440; Horn, Proc. Am. Phil. Soc. 1879, p. 402 \
Euphoria Clarki, Leconte, loc. cit. p. 441.
Euphoria texana, Schaufuss, Sitz. Ges. Isis, 1863, p. 113.

Eah. North Ameeica, Kansas to Texas i. — Mexico, Durango city {Edge).
The Mexican examples closely agree with others from Texas.

CHLOEIXANTHE.

Corpus elongate- oblongum, supra deplanatum, glabrum. Caput latum; oculi valde convex!; clypeus late
quadratus, antiee late et recte truncatus marginibus reflexis. Antennae breves, clava S $ medioeri.
Thorax medio basi valde emarginatus, basi utrinque valde flexuoso juxta scutellum angulatim producto,
margine lateral! late incrassato. ScuteUum elongatum, lateribus longe sinuatis, apice subrotundato.
Elytra sequalia, nullo mode costata. Pedes robust!, tibiae 4 posticae extus medio acute unidentatae, apice
dentibus 3 elongatis. Mesosternum valde et late productum, late lanciforme, planatum. Tibiae anticae
breviter tridentatae, dentibus duobus inferioribus contiguis et conjunctim productis, 3° superiore longe
remote in S parvo obtuso, in $ valido et acuto. Tarsi robusti, incrassati, articulis arete coUigatis.

A genus formed for the reception of Euphoria flavoviridis^ which, as will be seen
from the above description, differs in very many structural points from all species of
Euphoria.

1. Chlorixanthe flavoviridis. (Tab. XXI. fig. 12.)

Euphoria fiavoviridis, Thomson, Musee Scientif. p. 36 (I860)'.
Eah. Mexico 1, Etla (^«^^Ze), Oaxaca (iS'aWe, i<<ewocA?o).

Subfam. CREMASTOCEILINM

GENUCHINUS.

Genuchinus, Westwood, Thesaurus Entom. Oxon. p. 23 (1874).

Judging from Dr. Horn's figure and description of the rare North-American
Psilocnemis (Cremastochilus) leucostictus, Burm., there appears to be little to distin-

GENFCHINUS.— CEEMASTOCHILIJS. 375

guish GenucMnus from Psilocnemis. Both agree in the rounded outline of the thorax,
and apparently in the flattened form of the raentum.

Three species were described by Westwood from Ecuador and Mexico.

1. Genuchinus v-notatus. (Tab. XXiii. fig. 14.)

GenucMnus v-notatus, Westw. Thesaur. Ent. Oxon. p. 24, t. 10. fig. 4\

Hah. Mexico i, Cordova {Salle), Jalapa, Trapiche (H'oge) ; Nicaeagua, Chontales
(Belt) ; Costa Eica, Cache (Rogers).

A good series of examples has been received from Herr Hoge. In all the thorax is
polished and sparsely punctured.

2. Genuchinus velutinus.

GenucMnus velutinus, Westw. Thesaur. Ent. Oxon. p. 25, t. 10. fig. 5 '.
Hah. Mexico (mus. Parry i), Amula in Guerrero (H. H. Smith).

Distinguished from the preceding by its opaque and closely punctulated thorax.
The punctures in tvs^o male examples recently captured by Mr. Smith are circular or
ring-shaped, with the rings mostly open posteriorly, and the interstices between the
rings are, in part, minutely granulated.

CREMASTOCHILUS.

Cremastocheilus, Knoch, Neue Beitrage, p. 115 (1801); Burmeister, Handb. der Ent. iii. p. 678;
Horn, Proc. Am. Phil. Soc. 1879, p. 382.

A genus, so far as at present known, peculiar to North America, with its southern
limits in Mexico. Deducting the numerous synonyms recently detected by Dr. Horn,
the described species number twenty-three.

1. Cremastochilus saucius.

Cremastochilus saucius, Lee. Journ. Acad. Pliil. iv. p. 16 (1858) ; Horn, Proc. Am. Phil. Soc. 1879,
p. 386 ' ; Trans. Am. Ent. Soc. 1885, p. 126, t. 4. fig. 3.

Hah. North Ameeica, Kansas to Texas ^. — Mexico, Durango city (Hoge).

A single example supplied by Herr Hoge agrees well with Dr. Horn's descriptions
and figure, the only difference observed being the longer and more spiniform (straight)
tooth at the base of the thorax near the hind angle. -,

2. Cremastochilus planatus.

CremastocMlus planatus, Lee. New Spec. Col. i. p. 81 (1863) ^ ; Horn, Proc. Am. Phil. Soc. 1879,
p. 386, t. 4. fig. 1^

Hah. North America, California ^ Arizona ^. — Mexico, Northern Sonora (Morrison).
One example only of this distinct species was received from Morrison.

376 LAMELLICORNIA.

3. Cremastochilus mexicanus.

CremastocMlus mexicanus, Schaum, Germar's Zeitschr. iii. p. 256; Ann. Soc. Ent. Fr. 1844, 1. 11.

fig. 8 ^ j Burm. Handb. der Ent. iii. p. 682.
Cremastochilus Villada, Duges, La Naturaleza, iv. p. 174 (1879) ^

Hah. Mexico i, Northern Sonora {Morrison), Guanajuato ^ {Salle, ex coll. Bugbs).

The single example received from Morrison differs from the one from Guanajuato only
in the reddish-testaceous clypeus and legs ; the two agree in all details of structure.

4. Cremastochilus crinitus,

Cremastochilus crinitus, Lee. Trans. Am. Ent. See. v. p. 55 ^ ; Horn, Proe. Am. Phil. Soe. 1879,
p. 390, t. 4. fig. 6'.
Hal. NoETH Ambeiga^^, — Mexico, Chihuahua city {Hoge). '

One example only, agreeing well with Dr. Horn's description and having the long
hairs of the upper surface in a good state of preservation.

LISSOMELAS.

Magnus, elongato-oblongus, supra planatus, omnino depilatus, fere impunctatus. Caput usque ad medios oculos
in thorace retractum, supra fere planum, clypeo lateribus deflexis margine antiee medio reflexo. Oculi
plani. Mentum late transversim ovatum, fere planum, inajquale, margine minime elevato apice angulatim
prolongato. Antennae breves, articulis 3°-7™ brevissimis gradatim valde latioribus. Mandibulae parte
membranacea lata supra penicillata; maxillse sicut in Cremastochilo. Thorax relative parvus, subtra-
pezoideus, lateribus parum arcuatis, angulis anticis nuUis, posticis rotundatis, medio basi leviter sinuate.
Pygidium utroque sexu apice convexum. Pedes mediocres ; tibiae anticse valde, 4 posticae minus, triquetrae,
medio extus unidenticulatae ; tarsi mediocres, supra et siibtus eleganter plurisulcati, articulis cylindricis
arete conjunctis.

S . Tibiae anticae extus dentieulo obtuso vel obsoleto, apice lato et recte prolongato. Pygidium apice maxime
convexum et versus ventrem inflexum ; venter medio depressus, subcanaliculatus.

5 . Tibiae anticae distinctius bidentatae. Pygidium apice minus subtus inflexum, dorso late planato ; venter
convexus.

By the form of the clypeus this genus is nearest allied to Cremastochilus, but the
disc of the mentum is not in the slightest degree cupuliform, and more nearly resembles
that of Genuchinus, and the form of the thorax is unlike that of any American genus
of the group.

1 . Lissomelas flohri.

Omnino niger, sericeo-nitidus, elytris versus basin plus minusve velutinis ; capite, pygidio corporeque subtus

subtilissime sparsim punctulatis ; thorace, scutello elytrisque laevibus, his disco planato-subdepressis.
Long. 22-25 millim. c? $ .

Hah. Mexico, Ventanas in Durango {Hoge), Mexico city {Flohr).

A good series of examples. In some the fine carinae of the triquetral tibiae are more
or less chipped or ragged by wear, and in one the front edge of the clypeus is similarly,
but symmetrically, broken on each side.

PANTODINUS.— INCA. 377

Fam. TEICHIID-Sl.

PANTODINUS.

Pantodinns, Burmeister, Handb. der Ent. v. p. 291 (1847) ; Westwood, Trans. Ent. Soc. Loud.
1878, p. 33.

Burmeister placed this extraordinary and isolated form, in which the head and
thorax are cornuted, in the family Dynastidae, notwithstanding its semimembranous
mandibles; but Candeze having had an opportunity of examining both sexes, and
finding that the clypeus of the female was that of a Cetonid, and the anterior femora
exserted, has shown that it belongs to the melitophilous series of Lamellicornia, and
that it would be best placed by the side of Inca^ in the Trichiidae. The species on
which the genus is founded is of extreme rarity.

1. Pantodinns klngi.

Pantodinus Klugii, Burm. Handb. der Ent. v. p. 292^; Candeze, Compte Rend, Soc. Ent. Belg.
xvi. p. xh^; Westw. Trans. Ent. Soc. Lond. 1878, p. 33, t. 2. fig. 2 a.

Hah. Guatemala ^ 2.

The species is not contained in our collections.

INCA.

Inca, Serville, Encycl. Method, x. p. 380 (1825) ; Burmeister, Handb. der Ent. iii. p. 706.

This well-known genus is one of the characteristic forms of the American Coleopterous
Fauna. Eight species have been described, mostly from Southern Brazil ; one only
extends northwards as far as Mexico.

1. Inca clathratns.

Cetonia clathrata, Oliv. Journ. d^Hist. Nat. i. p. 93, t. 6. fig. 2 (1792).
Cetonia Ynca, Weber, Obs. Ent. i. p. 66 (1805) ; Fabr. Syst. Eleuth. ii. p. 136.
Inca Ynca, Gory & Perch. Monogr. Cetoin. p. 103, t. 13. fig. 1.
Inca Weberi, Serv. Encycl. Meth. x. p. 381 ; Burm. Handb. der Ent. iii. p. 707 \
Inca Fabricii, Perty, Del. anim. artic. Bras. p. 51, t. 11. fig. 3.

Var. S cornibus apice fere truncatis.

Inca Sommeri, Westw. Arc. Ent. ii. p. 99, t. 73. figg. 1, 2 ((5* ? )^

ffab. Mexico 2; British Hondueas, Cayo (Blancaneaux) ; Nicaragua, Chontales
{Belt) ; Panama, Volcan de Chiriqui 3000 feet (Champion), — South America, Guiana,
North Brazil 1.

In all the males I have seen from Mexico and Central America the upper inner
carina of the male horns curves towards the inner apical angle, and in all those from.
South America towards the outer apical angle. This is a more constant difference

BIOL, cente.-amee., Coleopt., Vol. II. Ft. 2, October 1889. 3 CC

378 LAMELLICOENIA.

than the straight truncature specified by Westwood as the distinctive character of
/. sommeri, as Mexican examples vary much in this respect, the apex being sometimes
strongly sinuated.

DIALITHUS.

Dialithus, Parry, Trans. Ent. Soc. Loud. v. p. 181 (1849).

This genus contains a single species, which, so far as at present knovt^n, is peculiar to
Central America.

1. Dialithus magnificus. (Tab. XXIII. fig. 17.)

Dialithus magnificus, Parry, Trans. Ent. Soc. Lond. v. p. 181, t. 18. fig. 4\
Hah. Mexico ^ ; Nicaragua, Chontales {Belt).

Mr. Belt obtained three examples of this superb insect at Chontales, in one of which
the elytra and legs are tawny-red instead of black as in Parry's type specimen. In the
male the anterior tibiae are abruptly narrowed near the apex ; without upper tooth, and
the apical tooth is much less prolonged than in the female.

TEIGONOPELTASTES.

Trigonopeltastes, Burmeister, in Germar's Zeitschr. ii. p. 406 (1840); Handb. der Ent. iii. p. 747.

Six species of this exclusively American genus have been described, one South
Brazilian excepted, all from the United States and Mexico.

1. Trigonopeltastes deltoides.

Trichius deltoides, Newman, Entom. Mag. v. p. 169 \

Trigonopeltastes deltoides, Burm. Germ. Zeitschr. ii. p. 407 ; Handb. der Ent. iii. p. 748 ^

Hah. Mexico i ^.

This, the largest species of the genus, is not contained in our collection.

2. Trigonopeltastes archimedes.

Trigonopeltastes Archimedes, Schaum, in Germar's Zeitschr. iii. p. 235 ' ; Burm. Gen. Ins. no. 34,
fig. 3 ( cJ ) ; Handb. der Ent. iii. p. 749 ^

Hab. Mexico ^ ^, Acapulco (Edge).

c? . Pygidium fere planum ; venter medio subglaber ; tibiaa anticse bidentatae, medio extus late rotundatae.
2 . Pygidium prope apicem convexum ; venter medio (et metasternum) dense albido-villosus ; tibiae anticse
graeiliores acutiusque bidentatae.

This species is distinguished by its narrow oblong form, the great length of the sides
of the thorax after the antemedian dilatation, and the broad quadrate black circum-
scutellar (including the scutellum) spot of the elytra, on the hinder margin of which a
short, sometimes interrupted, fascia crosses the suture. The raised triangular plate of
the thorax and adjoining parts are impunctate.

TEIGONOPELTASTES. 379

3. Trigonopeltastes simplex.

Oblongus, niger, elytris rufescenti-fulvis, sutura (et interdum dimidio posteriore) nigra, lateribus medio lineola
transversa vix perspicua albida; pygidio convexo, nigro, striolato, polito, utrinque macula triangulari
albo-pubescente. Subtus niger, politus, ventre utrinque maculis transversis segmentoque 5° fere toto,
pectore et femoribus sparsim, albido-pubescentibus. Caput cum clypeo toto acute strigulosum ; thorace
paullo ante medium obtuse dilatato, angulis posticis rectis, disco triangulo profunde inciso (hand
pubescente), toto sat crebre et grosse punctate, angulis anticis pubescentibus. Elytra disco planata, striis
subtilissimis totis fere rectis. Tibiae anticse tridentatse.

Long. 8-8| millim. 2 . ^ ■

Hal). Guatemala, San Geronimo (Champion). Two female examples only.

This species is distinguished from its allies by the absence of white spots near the
suture or on the scuteilum, and the simple coloration of the elytra, without trace of the
usual black lines and curves. There is a faint trace of the usual short lateral trans-
verse white lineola on the elytra. The thorax in both examples is possibly abraded,
and the yellow pubescence in the triangle-shaped sulci consequently wanting.

4. Trigonopeltastes geometricus.

Trigonopeltastes geometricus, Schaum, in Germar^s Zeitsclir. iii. p. 284^; Burm. Gen. Ins. no. 34,
fig. 2 ( $ ) ; Handb. der Ent. iii. p. 750 '.

Hah. Mexico ^ 2, Cordova (Salle), Jalapa, Almolonga [Hoge), Teapa in Tabasco
(H. H. Smith) ; Guatemala, San Geronimo (Champion).

The markings of the elytra, well described by Burmeister, are tolerably constant, the
most characteristic being a black line arising from a broad spot behind the shoulder,
which curves towards the narrow sutural vitta (with which it is connected by a short
transverse line), and continuing thence down the disc nearly parallel to the suture ends
in a large apical spot. The general form is shorter than in the allied species, ovate rather
than oblong. The thorax is correspondingly shorter, more angularly dilated in the
middle, and with the sides more or less sinuated to the hind angles, which are rectangular
or acute ; the yellow triangular signature of the disc is short, and the grooves in which
it lies are strongly impressed, but not quite so strongly and broadly as in T. archimedes
and T. simplex, and in the S. Brazilian T. triangulum. The sexes closely agree, and I
do not find that the female is difierently coloured to the male or smaller than it, as stated
by Burmeister, who must have had before him a variety in describing the female. The
typical state varies slightly in its elytral markings, the short transverse lineole being
sometimes absent, and in other cases the longitudinal curved line interrupted ; the
following recede further from the type-form : — ,

Yar. T. nigrinus. Niger, opacus, elytris utrinque versus bumeros macula rotunda aurantiaca. Thorax angustior,
triangulo profundius impresso ; pygidium flavo-pubescens, vitta angusta Integra; venter segmentis l"-4"'
50que dimidio medio tantum flavo-tomentosis, lateribus late et 6" glabris nitidis.

Long. 7| millim, d .

Hah. Mexico, Cordova (Salle). One example.

3CC2

380 ' LAMELLICOENIA.

Var. T. intermedins. Magis elongatus, capite toto crebre punctato-ruguloso ; thorace pauUo longiore, ante
medium dilatato, postice sinuatim angustato, angulis posticis rectis vel paullulum pbtusis, longiore (apice
acutiore), triangulo sat profunde impresso ; elytris linea nigra curvata ab macula posthumerali usque ad
suturam biflexuose extensa (suturam interdum baud attingente), a linea longitudinali disjuncta.

c? . Venter et metatborax medio albo-villosi ; tibiae anticse dente 3° obtuse.

Long. 9 millim. c? $ .

Uab. Mexico, Yolos, Chiapas (Salle). Five examples.

An example of Sturm's in the Salle collection, differing only in the irregular thick-
ness of the flexuous subbasal fascia of the elytra, is labelled (in Sturm's handwriting)
T. deltoides, Newm.

6. Trigonopeltastes sallaei. (Tab. XXIII. figg. 15 ; 16, 18, vars.)

T. geometrico proxime affinis ; major ; tborace longiore, medio multo obtusius dilatato, postea recte angustato,
angulis posticis obtusis (rarissime acutis), triangulo flavo longiore, basi plerumque utrinque abbreviata ;
elytris sicut in T. geometrico, sed macula communi magna transversa post scutellum, interdum maculam
humeralem attingente sed baud per lineam flexuosam connexa, linea longitudinaK ab apice obliqua antice
abbreviata.

Long. 9-10 miUim. c? 2 •

ITab. Mexico, Tehuantepec (Sumichrast, in coll. Salle), Almolonga, Jalapa [H'oge),
Temax in North Yucatan (Gaumer); Nicaragua, Chontales (Belt).

Variat : — 1. Elytris maculis nigris, hamerali et suturali deficientibus : Cbontales. 2. Elytris maculis nigris
omnino obsoletis : Yucatan. 3. Tborax postice magis angustatus, angulis posticis subacutis : Yucatan,
Cbontales.

A large series of this insect was obtained by Herr Hoge at Almolonga, offering
scarcely any variation, and giving the impression of a species very distinct from the
series of T. geometricus from Cordova, which is also found at Almolonga. The
differences between the two forms are, however, to a great extent bridged over by the
var. intermedius described above, and slighter individual variations. The Tehuantepec
examples bear the MS. name of T. elongatulus in the Salle collection. The following
variety is somewhat more distinct : —

Var. T. frontalis. Thorax sicut in T. sailed postice recte angustatus angulisque posticis obtusis ; niger, fronte
cum elypei basi f ulvo-villosa ; tborace triangulo minus elongato, parum sulcato; elytris fulvis, linea
curvata subbasali abbreviata vel interrupta, linea recta longitudinali a medio usque ad apicem maculaque
ovata submarginali (lineola transversali alba includente) fusco-nigris ; pygidio albo-tomentoso, ( J ) medio
vitta, ( 2 ) macula latiore, nigra, glabra, basi baud attingente ; pedibus antennisque fulvis- c? • Venter
sternaque toto albido-tomentosi ; tibiae anticse bidentatae. $. Venter medio anguste segmentorumque
marginibus solum glabratis.

Long. 9 1 millim.

Eab. Mexico, Playa Vicente (Salle). Two examples.

The Mexican species of the genus evidently tend to form local varieties, and many
more no doubt remain to be discovered.

TEIG0N0PELTA8TES.— CCELOCEATUS. 381

6. Trigonopeltastes cams.

T. geometrico affinis, adhuc brevior, niger, supra opacus, subtus politus ; thorace triangulo lato et brevi profunde
impresso flavo-pubescente ; elytris utrinque linea curvata basali, fascia transversal! lateral! ad trientem
longitudinem, alteraque obliqua apicem versus, flavis, medioque lineola tenuissima lateral! transversa alba ;
scutello suturaque basi immaculatis ; clypeo sat elongate et angusto ; thorace pauUo ante medium valde
angulatim dilatato deinde tarn antice quam postice sinuatim angustato, angulis posticis productis acutis.
Pjgidium sericeo-flavo tomentosum, medio vitta nigra glabra, d" . Venter medio sternaque utrinque
breviter albo-fasciata. $ . Subtus (femoribus antice exceptis) toto glabra.

Long. 7 mUlim.

Flab. Panama, Bugaba, Volcan de Chiriqui 3000 feet [Champion).

Two examples only, one of each sex. The yellow lines of the elytra evidently vary
in extent, and appear to be the rudiments of the more developed lines of similar colour
in the allied species.

7. Trigonopeltastes linea.

Trigonopeltastes linea, Burm. in Germar's Zeitschr. iii. p. 235; Gen. Ins. no. 34, fig. 5 (cJ);

Handb. der Ent. iii. p. 752 \
Trigonopeltastes quadrisignatus , Schaum, in Germar^s Zeitschr. iii. p. 236.
Trigonopeltastes quadriguttatus, Burm. Gen. Ins. no. 34, fig. 4 ( c? ) ; Handb. der Eut. iii. p. 752 ^

Hah. Mexico ^ ^.

Unknown to me.

CCELOCRATUS.

Ccelocratus, Burmeister, in Germar's Zeitschr. iii. p. 242 (1841) ; Handb. der Ent. iii. p. 767.

One species only has hitherto been described of this genus, from " the interior of
Northern Brazil." I refer the following, smaller, Mexican species to the genus
owing to the very similar form of the clypeus (in which Ccelocratus differs from all
other genera of Trichiidse), viz. transverse-quadrate, with straight front edge and equally
raised fore and lateral margins. The Mexican insect also agrees in the form of the
thorax and elytra, and in the anterior tibiae having two outstanding teeth in both sexes,
but it differs in the middle tibiae of the male not being bowed.

1. Ccelocratus senescens. (Tab. XXIII. fig. 13.)

Oblongo-ovatus, parum convexus, toto erecte (apud caput et tboracem multo longius) pubescens, viridi-aeneus vel
obscure ceneus, nitidus ; elytris opacis, testaceo-rufis vel fulvis, sutura et marginibus, vitta utrinque angusta
recta, antice abbreviata, dorsal!, vittaque latiore curvata et intus bilobata lateral!, obscure viridi-seneis,
interdum vagis et subobsoletis ; thorace fere sicut in Trichio fasciato rotundato, angulis posticis vix
distinctis, antice angustato angulis acutis, sat dense punctate ; elytris striis nonnullis subtilissimis et
sparsim subtilissime punctulatis ; pygidio cS longe fulvo-villoso, subverticali, ? breviter pubescente,
marginibus dense albido-squamulosis.

Long. 10i-12| milHm. d 2 • ., •

Eab. Mexico (Salle). , ^

Eour examples, labelled " Tnc^iMS, sp.", in the Salle collection.

SUPPLEMENT.

The following supplementary pages contain descriptions of the new species received
during the progress of the present volume, together with indications of new localities
for species previously recorded and a few rectifications of synonymy, errors, and omis-
sions that have been detected since the foregoing parts were published.

PSEUDOLUCANUS (p. 1 ; to precede the genus Cantharolethrus).
Pseudolucanus (Hope), Parry, Trans. Ent. Soc. Lond. 1870, p. 72.

According to Major Parry this genus includes four described species, viz. one North-
American, one peculiar to the Mediterranean region, one Indian, and the following
from Northern Mexico : —

1. Pseudolucanus mazama.

Dorcus Mazama, Leconte, Proc. Acad. Phil. 1861, p. 345 ; Parry, Trans. Ent. Soc. Lond. 3rd ser.

ii. p. 51 \
Pseudolucanus Mazama, Parry, Trans. Ent. Soc. Lond. 1870, p. 72.

Hah. Mexico i, Santa Clara in Chihuahua [Hbge).

I am indebted to Mr. Flohr for calling my attention to this species, which was over-
looked in the former part of this work. It has since been captured in large numbers
by Herr Hoge.

JESALUS (p. 2).

2(a). -ffisalus smithi.

JE. neotropicali valde affinis et sirailis ; difFert statura paullo majore coloreque subaenescenti-fusco et prseeipue
cantho oculari multo breviore et latiore ; supra nitidior, sparsius et discretius umbilicato-punctulatus,
setulis griseo-fuscis (baud nigro-fuscis) brevioribus et sparsioribus, elytrisque interstitiis plants.

Long. 5 millim.

Hah. Mexico, Chilpancingo in Guerrero (H. H. Smith). One example only.

The much shorter and broader canthus of the eyes is the principal character which
distinguishes this species from ^. neotropicalis, the length of the canthus being scarcely
one fourth the width of the eye and its ridge arcuated, whilst in jE. neotropicalis it is
about one half the length of the eye and linear, with a straight ridge. Compared with
a good series of JE. neotropicalis the surface is conspicuously more shining, due to the
more separated punctures and correspondingly sparser setse, which latter are also
shorter and lighter in colour.

PECTINICOENIA. 383

PROCULUS (p. 3).

Proculus goryi (p. 3).

To the localities given, add : — Mexico, Tapachula in Chiapas {Edge).
^ ■ PEOCULEJUS (p. 4).

6 (a). Proculejus nudicostis.

A P. championi differt elytris relative longioribus, dorso siibplanatis, punctato-sulcatis. In hoc genere elongatus,
niger, nitidus ; cornu verticis porrectus, compresso-conicus, acutus, carinisque valde divaricatis et brevibus
inermibus, tuberculo valido, compresso-conico, utrinque a carina late separate et supra clypei angulum
site ; frons brevis, clypei margine simplici ; mandibulae apice tridentatse ; thorax sat magnus, quadratus, cum
fovea laterali Isevis, sulco marginali punctato antice juxta coUum terminate ibique nuUo modo dilatato ;
elytra thorace duplo longiora, medio dorso depressa, punctato-sulcata, interstitiis totis laevissimis.

Long. 37 millim.

Eah. Mexico, Chilpancingo in Guerrero (IT. H. Smith). Two examples.

In the punctate-sulcate elytra this species resembles P. hrevis (Truqui), and in the
glabrous sides of the elytra and thorax P. championi. Bates ; but it differs from both
in the more elongate and dorsally-fiattened elytra and in the longer " horn " of the
vertex, which is porrect and compressed, and also in the abbreviated frontal carinae,
from the ends of which the tubercle is removed to the anterior angles of the
forehead.

i

PLATYVERRES (p. 9).

Platyverres intermedius (p. 9).

To the Mexican localities given, add : — Omilteme and Amula in Guerrero 6000 to
8000 feet (H. H. Smith).

RIMOR (p. 10).

Eimor Sagittarius (p. 10).

To the Mexican localities given, add: — Omilteme in Guerrero 8000 feet (H. H.
Smith).

The numerous examples from Omilteme are much larger (40 millim.) than those
taken at Orizaba by M. Salle (34 millim.).

POPILIUS (p. 11).

Popilius granulifrons (p. 12).

To the Guatemalan localities given, add : — Capetillo (Rodriguez).

384 SUPPLEMENT.

NELEUS (p. 14).

ISTeleus tlascala (p. 14).

To the localities given, add : — Hondueas, Kuatan Island (Gaumer).

Neleus interstitialis (p. 15).

To the localities given, add : — Mexico, Teapa in Tabasco, Atoyac in Vera Cruz (H.
H. Smith), Temax in North Yucatan (Gaumer), Tabi in Yucatan (F. D. G.).

EHODOCANTHOPUS (p. 15).

Ehodocanthopus maillei (p. 15).

To the localities given, add : — Mexico, Omilteme and Amula in Guerrero, Teapa in
Tabasco (E. H. Smith).

PTICHOPUS (p. 17).

Ptichopus angulatns (p. 17).

To the localities given, add : — Mexico, Dos Arroyos in Guerrero (H. H. Smith), Temax
in North Yucatan [Gaumer).

UNDULIFER (p. 18).
XJndiilifer incisus (p. 18).

To the Mexican localities given, add : — Omilteme in Guerrero {H. H. Smith).

SORANUS (p. 19).

9. Soranus depressifrons.

S. recticorni similis, sed elytris relative longioribus. Sat anguste elongatus, politus ; labrum antice paullo
angustatum, sinuato-truncatum, grosse punctatum ; clypeus latus, l^vis, margine subrecto ; frons toto
depressa, medio transversim concava, piloso-punctata, cornu frontali nuUo carinisque brevissimis ; thorax
relative parvus, antice distincte angustatus, subtiliter punctulatus, juxta marginem anticum fere sicut in
gen. Veturio paullo prominens et convexus, sulco marginali antice lato et profunde fere usque lineam
dorsalem extenso, lateribus impunctatis foveaque transverse Isevi ; elytra relative elongata, dorso subde-
pressa, punctato-sulcata ; prothorax subtus tibiseque dense fulvo-birsuta.

Long. 25 millim.

Ilab. Mexico, Huitzilac in Morelos {Edge). Two examples.

The leaflets of the antennal club are short (not more than twice as long as the joints),
but the species does not well fit into any of the genera of the restricted group * Passa-
lini ' which have this character. The prominence of the anterior margin of the thorax
in the middle, limited on each side by the end of the deep and broad marginal sulcus,
is a character of the genus Veturius ; it is, however, only slight in the present case, and

LAMELLICOENIA. 385

the small head, strongly-punctured elytra, and facies show a closer relationship to Soranus
than to Veturins, in which the head is remarkably broad, and the elytra finely
punctulate-striate.

PASSALUS (p. 21).

Passalus striatopunctatus (p. 22).

To the localities given, add : — Mexico, Teapa in Tabasco (ff. E. Smith), Temax in
N. Yucatan (6^rt;itm^r).

VERRES (p. 23).

Verres corticicola (p. 24).

To the localities given, add: — Mexico, Teapa in Tabasco [H. H. Smith)

CANTHON (p. 26).

Canthon speciosus (p. 27).

To the localities given, add : — Mexico, Teapa in Tabasco (H. H. Smith).

Dr. Horn (Trans. Am. Ent. Soc. 1870, p. 45) gives this name as synonymous with
C. cyanellus, Lee, from Texas. The two species are, in fact, almost identical in form
and in the deeply emarginate clypeus, bispinose in the emargination, and differ only
in the punctuation of the upper surface, which in the Texan species is very distinct
though fine, imparting to the elytra a slight opacity, whilst in all Mexican examples
it is scarcely perceptible with a strong lens, and the whole surface is highly polished.

Canthon enryscelis (p. 28).

To the localities given, add : — Mexico, Atoyac in Vera Cruz, Teapa {H. H. Smith),
Temax in North Yucatan [Gaumer).

Canthon viridis (p. 30).

To the localities given, add : — Mexico, Hincon in Guerrero (H. H. Smith), Temax
in North Yucatan (Gaumer).

Many specimens have lately been received from Yucatan, nearly all of the dark
violet form, a few only having the thorax tinged with green.

Canthon gagatinus (p. 33).

M. Salle has pointed out to me that this species, or its blue variety C. amethystinus,
Harold, is the Ateuchus humectus of Say, a name omitted by Harold and Gemminger
in the Munich Catalogue, and also by Harold in his monograph of the genus Canthon.
Dr. Horn also informs me that C. indigaceus of Leconte belongs to the same species.
The synonymy therefore will stand thus : —

BIOL. CENTK.-AMEE., Coleopt., Vol. II. Ft. 2, December 1889. 3 DD

386 SUPPLEMENT.

23. Canthon humectus.

Ateuchns humectus, Say, New Sp. N. Amer. Ins. p. 4 (1832) ; Leconte, Complete Writings Th.

Say, i. p. 301 \
Canthon gag atinus, Har. Ann. Soc. Ent. Fr. 1863, p. 173.
Var. Canthon amethystinus, Har. loc. cit.
Canthon indigaceus, Leconte, Proc. Ac. Phil. 1866, p. 380 '.

To the localities given, add: — Noeth America, Arizona 2. — Mexico \ Amula and
Mescala in Guerrero [H. H. Smith).

All the examples from Guerrero are of the black variety.

Canthon chevrolati (p. 33).

To the localities given, add : — Mexico,' Mescala, Chilpancingo, Venta de Zopilote,
Amoquileca 6000 feet in Guerrero, Cuernavaca (H. H. Smith), Temax in North
Y ucsitsiii (Gaumer) ; Gv atemal a, Csn^etiWo (Bodriguez).

I give these localities, which add nothing of importance to the range previously
recorded, simply to note that all the very numerous examples from Capetillo are of the
violet-black form, all from Guerrero bright green, and all from Temax blackish -green,
especially on the elytra.

PSEUDOCANTHON (p. 35).

2. Pseudocanthon chlorizans.

Canthon chlorizans, an tea, p. 34.

To the Mexican locality given, add : — Temax in North Yucatan (Gaumer).

A large series has been received from the above-named locality, and on further
studying the species I find that it has all the characters of the genus Pseudocanthon
— the longer mesosternum separated from the metasternum by a sharp straight suture,
the flexuous inner edge of the fore tibiee, and the sides of the thorax parallel from the
base to near the anterior angles, and thence sharply narrowed to the apex. 1 am
inclined now, however, to doubt the generic importance of the longer and sharply
delimited mesosternum, as this character is somewhat variable in the genus Canthon,
C. transversalis, Har., and C. halteatus, Boh., belonging to distinct sections of the genus,
having the same form of this segment as Pseudocanthon.

P. chlorizans is of a glossy, but not deep black colour, often with a slight greenish
tinge, but without pale markings ; the legs are always testaceous-red ; the elytra, espe-
cially behind, are studded with minute shining hair-scales, as in P. perplexus. The
prothoracic cavity beneath near the anterior angles is deep and sharply margined.

LAMELLICOENIA. 387

EURYSTERNUS (p. 39).
Eurysternus claudicans (p. 39),

To the localities given, add : — Mexico, Atoyac (Flohr) ; Guatemala, Coban in Vera
Paz (Conradt).

CANTHIDIUM (p. 47).

Canthidium puncticoUe (p. 47).

To the localities given, add : — Mexico, Atoyac in Vera Cruz {H. H. Smith), Temax
in North Yucatan (Gamner).

2 (a). Canthidium smithi.

C. punGticolli proxime affine ; majus verticeque binodoso ; quadrato-ovatum, viridescenti-nigrum ; clypeus
bidentatus ; thorax valde convexus, dorso postice sulco lato sed baud profundo cum basi tota grosse punctata,
csetera superficie dense et minute punctulata ; elytra striata, striis vix perspicue punctulatis, interstitiis
obsolete coriaceo-punctulatis ; pygidium paullulum convexum, sparsim subtiliter punctulatum, medio
fovea magna parum profunda. Mesosterni episterna grosse arcuatim rugosa, metasterni lateribus arcuatim
acieulatis. Tibiae anticae apice reete truncatae, intus apice in ^ acute productae.

Long. 8 millim. c? 2 •

Hah. Mexico, Omilteme in Guerrero 8000 feet (iiT. H. Smith). Two examples.

The two prominences on the crown are large and only very slightly elevated,
probably worn ; the third or frontal tubercle, conspicuous in C. 'puncticolle, is entirely
wanting.

COPRIS (p. 53).

Copris rebouchei (p. 54).

To the locahties given, add : — Mexico, Puente de Ixtla in Morelos 3500 feet, Mescala
and Tepetlapa in Guerrero [H. H. Smith).

Copris boucardi (p. 54).

To the Mexican locality given, add : — Omilteme in Guerrero 8000 feet {H. H.
Smith).

PHANtEUS (p. 55).

Phanseus pluto (p. 56).

To the localities given, add : — Amuldi. m GueYYero [H. H. Smith).

2 (a). PhansBus mimseformis.

Phanaus mimceformis , Aucey, Le Naturaliste^ 2^ Annde, 1880, p. 205 \
Hah. Costa Rica i.

Unknown to me.

3 DD 2

388 SUPPLEMENT.

PhansBus scutifer (p. 60). (Tab. xxiv. figg. 1, l «, ? .)

Mr. Flohr has sent me the female of this species from Oaxaca, which is remarkable
for the distinct although short horn in the middle of the vertex : —

2 . L^te viridi-metallicus, capite fere toto, thorace processu antico callisque posticis necnon signaturis disci
vermiculatis elytrisque callo humerali nigris. Vertex cornu brevi erecto armatus ; thorax dorso antico
processu subquadrato acute marginato, antice fere verticali, punctato et utrinque fovea profunda Isevi
oblonga delimitata.

Long. 25 millim.

The anterior dorsal prominence is an exaggeration of that of P. quadridens (Say) $ ,
its front face forming a steep slope to the fore margin of the thorax.

PhanaBus daphnis (p. 61).

To the Mexican localities given, add: — Amula 6000 feet, Omilteme 8000 feet, and
Chilpancingo 4600 feet, in Guerrero {H. H. Smith).

PhansBTis eximius (p. 62).

To the localities given, add: — Guatemala, Chimaltenango 6000 feet (Conradt).
22 (a). PhanseuS tepanensis. (Tab. XXIV. figg. 2, 2 «, d ; 3, 3 a, S , var.)

p. heltiano affinis et subsimilis. Oblongo-quadratus, supra minus nitidus, obscure viridis, viridi-seneus, cupreo-
aeneus vel ceeruleus, elytris latius quam in P. heltiano opaco-sulcatis interstitiisque angustius nitido-culmi-
natis. Caput antice subtiliter transversim rugulosum. Thorax basi c? $ medio bipunctatus. Subtus
niger, laeviter seneus vel cseruleus.

cj . Cornu capitis elongatum, curvatum, acutum, versus basin parum sed distincte dilatatum, antice creberrime
punctulatum. Thorax disco triangulariter planatus declivis, grosse vermiculato-granulatus, angulis pos-
ticis elevatis acutis, margine postico anguste Isevigato, in medio triangulariter dilatato apiceque trianguli
elevato acuto.

^ minor. Cornu capitis brevissimum. Thorax postice convexus, antice dorso medio depressus, disco tuberculis
duobus laevibus.

$ . Vertex carinula trinodosa ; thorax confluenter ruguloso-punctulatus, prope apicem medio carina brevi
arcuata unituberculata foveaque lata parum profunda.

Long. 20-23 millim.

Hah. Guatemala, Tepan {Conradt).

The bronzed examples of this species much resemble P. heltianus, but the surface
is less shining and the opaque sulci of the elytra are much broader. In the form
of the thorax it comes nearer P. palliatus, the hind angles of the flattened triangular
disc being as in that species more elevated, and the keel which extends from the sharp
apex of the angle towards the lateral fovea is flexuous.

PhanaBus pilatei (p. 65).

To the Mexican locality given, add : — Temax in North Yucatan (Gaumer).

On examination of the large series obtained from Mr. Gaumer I find that the two
tubercles or rough ridge in the middle of the triangular declivity of the thorax are

LAMELLICORNIA. 389

present only in the most highly-developed males ; in those of medium and lower deve-
lopment there is no trace of them.

Phanseus damon (p. 65).

To the localities given, add : — Mexico, Dos Arroyos, R. Papagaio, Venta de Pele-
grino, Tierra Colorada and Acapulco in Guerrero (H. H. Smith).

31. PhansBus obliquans.

PhavKRiis mir abilis, anteh p. 65 (nom. preeocc).

It is necessary to change the name of this insect, as it is preoccupied by Harold
for another species of the same genus.

32. PhanSBUS excelsus. (Tab. XXIV. figg. 4, 4 a, d ; 5, 5 «, d , var.)
Phanceus damon, var., antek p. 65.

P. damon proxime affinis, seel difFert colore nigro-chalybseus plus minusve plumbeo-viridi tinctus, minus

resplendois.
<S major. Cornua thoracis altiora, verticalia, apice haud dilatata nee angulis productis ; thorax angulis

anticis acutioribus, ante medium acutius angulatus,
S minor et $ . A P. damon prseter colorem haud diversus.
Long. 16-22 milHrn.

Hab. Guatemala, Capetillo {Rodriguez), Tocoy ( Champion) ; Nicaragua, Chontales
(Janson).

Ten examples, including two male major, which agree perfectly in the form of the
thoracic horns, these being higher, narrower, and more vertical than in P. damon, <s ,
of the same development, and their posterior angles are not produced. In all
examples the general colour is violet-black, the fore part of the body and sometimes
the elytra metallic green, more or less plumbeous or silvery in tint.

A fully-developed male from Chontales, and a male minor from Capetillo are figured.

ONTHOPHAGUS (p. 66).
Onthophagus nitidior (p. 67).

To the localities given, add : — Mexico, Xucumanatlan in Guerrero 7000 feet {E. H.
Smith). Females only.

Onthophagus crinitus (p. 68).

To the locality given, add : — Mexico, Teapa in Tabasco {H. H. Smith).

Onthophagus rhinolophus (p. 69).

To the localities given, add : — Guatemala, Coban in Vera Paz (Conradt).

390 SUPPLEMENT.

Onthophagus guatemalensis (p. 73).

To the localities given, add :— Guatemala, Chimaltenango {Conradt).

Onthophagus landolti (p. 75).

To the localities given, add : — Mexico, Temax in North Yucutan (Gaumer).

Onthophagus chevrolati (p. 80)

Add:—

Var. 0. omiltemius. d • A typo differt thoracis gihbere medio tumorem prominentem rotundatum simplicem

efficiente.
Long. 11 millim.

Ilab. Mexico, Omilteme in Guerrero 8000 feet (E. H. Smith).

Mr. Smith obtained two well-developed males and one male minor, with several females
of this form, which may prove to be distinct from 0. chevrolati. In the latter the
middle anterior protuberance of the thorax is broad and rather concave in front ; in
the var. omiltemius it is narrower, and forms a simple tuberiform prominence.
There is a distinct tubercle on the crown as in 0. chevrolati; the surface is opaque,
bronzed-black, with fine and sparse punctuation on the thorax. The females are of
the same colour, but the surface is silky and undulating; and they are distinguishable
from the same sex of the following {0. undulans) only by their colour.

39 (A). Onthophagus undulans. (Tab. XXIV. f^gg. 6, 6 ^, c? .)

0. chevrolati proximo affinis, differt colore sericeo-nigro, superficie ina^quali sicut in 0. totonicapamo sed glabra
et thorace sparsissime punctulato. ^

6 major Clypeus margino apicali valde reflexo medio panllo producto, angulis rotundato-productis vertice
simphce yel carinulato. Thorax gibbere utrinque lateraliter in dentem validum producto, lobo anteriore
angusto subcompresso simplici.

6 minor Clypeus fere semicircularis. Thorax gibbere minore sed lobo anteriore rotundato simplice

V . Caput bicannatum. Thorax antice medio eonvexo et bituberculato.

Long. 8|-10 millim.

Hah. Mexico, Omilteme 8000 feet, and Chilpancingo 4600 feet in Guerrero (H. H.

Smith). ^

41 (A). Onthophagus inflaticoUis. (Tab. XXIV. figg. 7, 7 « d • 8 ? )

0. Aevrolati affinis ; brevis niger, capite thoraceque politis, elytris et pygidio opacis, thorace grosse sparsim
punc a 0, elytrxs subtihter punctulato-striatis interstitiis sparsissime setiferopunctulatis. CaTut rugo o"
punctatum, gems ante oculos 6 magis $ minus rotundato-dilatatis ^ ^

6 major Clypeus late quadratus, concavus, margine antico medio paullo producto; vertex flexuoso-carinatus
fronte obtuse carxnata. Thorax elytris paullo longior et dimxdio latior, maxime convexurrarXe ante
medium breviter alte arcuato, gibbere antice verticali utrinque angulato lobo mediano n^rZ 7 .
antxce convexo. Tibi«. antica. elongata,, apice curvat^. ' ''°' ^''^^ ^'''^"^*°

' TbToW "' --icircularis. Thorax gibbere minus convexo, angulis lateralibus loboque anteriore sub-

2 . Clypeus obtuse triangularis, apice bidentatus. Thorax a^qualiter convexus
Long. 7-9 miUim. '

LAMELLICORNIA. 391

Hob. Mexico, Omilteme in Guerrero 8000 feet {H. H. Smith).

This singular species is an extreme form of the 0. chevrolati group. With legs
extended it resembles in general form and proportions the genus Eucranium of the
La Plata region.

ONITICELLUS (p. 82).

Oniticellus monstrosus (p. 83).

I learn from Mr. Flohr that this eccentric species occurs, so far as he is aware, only
in ants' nests.

2. Oniticellus rhinocerulus. (Tab. XXIV. figg. 9, 9 «, c? ; 10, 10 «, s , var.)

0. calif ornico (Horn) affinis ; difFert c? majore, genis angulatim dilatatis cornuque clypei versus apicem gradatim

dilatato. Oblongus, dorso subplanatus, obscure aenescenti-niger, opaeus ; capite Isevi ; thorace sparsim sat

grosse puuctato ; elytris striis baud impressis, nitidis, distaater punctulatis interstitiisque sparsim setit'ero-

punctulatis ; corpore subtus polito fere laevi.
c? major. Clypeus apice cornu mediocre versus apicem gradatim dilatatus apiceque sinuate ; vertex cornu parvo

acuto ; genis dilatatis acute angulatis. Thorax dorso postice planato, antice profunde triangulariter retuso

et obtuse bicornuto.
cJ minor. Clypeus cornu apicali brevissimo versus apicem angustato ; vertex tuberculo oouico parvo ; genis

multo miuus dilatatis, angulatis. Thorax dorso fere integro, juxta margiuem anticum tantum obsolete

retuso.
2 . Clypeus apice inerme ; vertex tuberculo parvo ; thorax omnino inermis.
Long. 9-12 millim.

Hob, Mexico, Canelas in Durango {Becker), Omilteme in Guerrero 8000 feet {H. H.
Smith).

We figure a fully-developed male and a male minor.

APHODIUS (p. 83).

Aphodius sallsei (p. 84).

To the localities given, add : — Mexico, Mescala in Guerrero {H. H. Smith), Temax
in North Yucatan (Gaumer).

Aphodius indutilis (p. 84).

To the localities given, add : — Mexico, Amula in Guerrero (H. H. Smith).

13. Aphodius cruentatus.

Aphodius cruentatus, Lee. U.S. Geol. Surv. Hayden, p. 456; Horn, Trans. Am. Ent. Soc. xiv. p. 52

(1887).
Aphodius, sp. no. 13, ante^ p. 86.

To the locality given, add : — North America, New Mexico, Arizona.
According to Dr. Horn, our insect from Sonora is A. cruentatus, Lee.

392 SUPPLEMENT.

16 (a). Aphodius constricticoUis. (Tab. XXIV. fig. 11.)

Elongato-oblongus, mediocriter convesus, piceo-niger, politus, pedibus rufo-piceis, antennis tarsisque pallidioribus ;
capite IsBvissimo, inermi, dypeo fere semicirculari apice yix perspicue truncato, genis parum prominentibus ;
thorax quadratus, post medium pauUo constrictus, apud angulos posticos subrectos iterum pauUulum
dilatatus, prope angulos anticos leviter angustatus, dorso subconvexo laevissimo, lateribus parce punctatis,
basi marginata ; scutellum mediocre ; elytra striata, striis subtilissime punctulatis, interstitiis pauUulum
convexis ; tibiae anticse punctulatse.

Long. 7 millim.

Eah. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

The bristles at the apex of the posterior tibiae are unequal in a different way from
those of the species allied to A. rufipes and A. contaminatus, the great majority being
short, with a long one only at distant intervals.

16 (b). Aphodius ?

Hab. Mexico, Omilteme in Guerrero {H. H. Smith).

A single specimen, discoloured ; extremely near A. euprosopus.

17. Aphodius opisthius.

Aphodius duplex, ante^ p. 87.
Aphodius opisthius, antea p. 92^ note.

24. Aphodius larrese. {A. Ufwns, Tab. VI. fig. 20.)

Aphodius larre(E, Horn, Trans. Am. Ent. Soc. xiv. p. 41 (February 1887) \
Aphodius bifrons, antek p. 90 (September 1887).

To the localities given, add : — North Ameeica, El Paso, Texas i.

Dr. Horn recognized our A. bifrons, the types of which he saw on a recent visit to
England, as his A. larrece.

24 (a). Aphodius omiltemius.

A. mexicano et aiEnibus primo intuitu similis, sed valde diifert genis baud productis. Paullo brevior, postice
leviter dilatatus, piceo-niger, capitis thoracis que limbis, antennis, palpis et pedibus testaceo-rufis ; caput
inerme, vix perspicue punctulatum : clypeus semicircularis limbo explanato, margine antico obtusissime
truncato, prope genas nuUo modo sinuato, bis subacutis sed baud productis ; thorax transversim quadratus,
a basi ad apicem subrecte et mediocriter angustatus, lateribus late biimpressis punctulatis, disco fere laBvi,
basi immarginata utrinque versus angulos posticos obtusos sed distinctos obliquata ; elytra subsericeo-
nitentia, sat profunde striata, striis parum conspicue punctulatis, interstitiis convexis ; tibiae posticae extua
carinis longe setosis, apice valde inaequaliter setosse ; tarsi elongati, graciles.

Long. 5 millim. $ .

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

The two examples appear to be females, and all the claws are simple. A. omiltemius
resembles the species of the A. mexicanus group in so many features that it ought
probably to be placed in it. It lacks, however, what von ELarold considered

LAMELLICOENIA. 39

Q

an essential character, viz. the produced and acute gense. But the character is not
always strongly pronounced, and is very slight, for instance, in A. villosi^es.

SAPROSITES (p. 92).

Saprosites parallelus (p. 93).

To the localities given, add: — Guatemala, Coban in Vera Paz (Conradt).

EUPARIA (p. 93).

2. Euparia castanea?

Euparia castanea, Serville, Encycl. Meth. x. p. 357; Horn, Trans. Am. Ent. Soc. xiv. p. 87^ ?
Hah. NoETH Ameeica, Florida, Louisiana ^. — Mexico, Teapa in Tabasco {H. II. Smith).

I refer the single example from Teapa to IE. castanea with some reserve, Serville's
species being known to me only by description. Our insect agrees, however, in form,
punctuation, and colour with the careful description of Dr. Horn above cited. In the
Southern States, according to Dr. Horn, IE. castanea is found in the nests of a small ant.

ATtENIUS (p. 94).

AtsBnius imbricatus (p. 99).

To the localities given, add : — Mexico, Teapa in Tabasco [H, H. Smith) ; Guatemala,
Panzos (Conradt).

15 (a). AtsBnius steinheili.

Atanius Steinheili, Harold, Col. Hefte, xii. p. 18\

Eab. Mexico, Temax in North Yucatan (Gaumer). — South America, Colombia i.

Four examples agreeing well with the detailed description above cited, excepting
that I am unable to detect the " spinula accessoria " near the apical spurs of the hind
tibiae, which is probably a variable character and perceptible only in well-preserved
individuals. The outer apical angles of the same tibiae are prolonged and acute. The
sculpture of the elytra is similar to that of A. complicatus, from which the present
species is readily distinguished by its smaller size (4 millim.) and by the short but sharp
tooth on each side of the emargination of the clypeus. The carinae of the elytra, eight
in number on each side, are narrow from the base to the apex, each being accompanied
by a less elevated and more or less crenulated line on each side, and the punctures of
the broad striae are large and strung closely together.

Atsenius carinator (p. lOl).

To the localities given, add: — Mexico, Teapa {E. H. Smith),
BIOL, cente.-amee., Colcopt., Vol. n. Pt. 2, jDecemler 1889. 3 EE

394 ' SUPPLEMENT.

Two examples resembling in form and sculpture the Panama specimens which I
referred {antea p. 101) to A. carinator, Har. They are larger (3 J- millim.) and therefore
accord better with Harold's description.

AtsBiiius abditus (p. 101).

To the localities given, add : — Mexico, Teapa in Tabasco {ff. H. Smith).

OCHOD^US (p. 105).

OchodsBus luridus (p. 106).

The example from the Salle collection referred to this species is probably distinct.
Mr. H. H. Smith obtained at Omilteme in Guerrero four specimens of an insect which
agrees much more closely with Westwood's description ; these all have the short frontal
carina between the eyes, this carina being more or less depressed in the middle and
nearly separated into two transverse tubercles. The sculpture also agrees wdth the
description. The peculiar form of the left mandible described and figured by
Westwood, viz. bidentate at the apex and not sharply pointed as in both mandibles of
all other species of Ocliodceus, is certainly not shown in our examples ; but I think it
is clear that this is a mutilation, the figure on being regarded attentively evidently
representing a mandible in which the tip is broken off". The anterior tibiae are
unarmed at the inner apex in all the specimens.

The two species will therefore stand thus : —

1. OchodsBTis luridus.

Ochodceus luridus, Westw. Trans. Ent. Soc. Lend. n. s. ii. p. Q7 , t. 9. fig. 4\
Hab. Mexico i, Omilteme in Guerrero [H. H. Smith) ; Guatemala, Tepan (Conradt).

The single example from Tepan differs in the less densely punctured thorax and in the
clypeus being slightly produced and thickened in the middle ; it is probably the male.

1 (a). Ochodseus ?

Hob. Mexico {SalU).

7. OchodaBus ?

Hah. Mexico, Amula in Guerrero (H. H. Smith).
A single example ; indeterminable.

BOLBOCERAS (p. 111).

Bolboceras sallaei (p. ill).

To the Mexican localities given, add : — Amula in Guerrero 6000 feet {H. H. Smith).

LAMELLICORNIA. 395

Bolboceras arcuatus fp. ill).

The males described are of somewhat minor development, two examples since received
being larger and having a more prominent thoracic armature.

d major. Thorax antice medio subverticalis utrinque profunde retusus, supra sat valde quadridentatus.
Long. 12 millim.

To the localities given, add : — Mexico, Tepetlapa and Amula in Guerrero 6000 feet
[H. H. Smith)^ Temax in North Yucatan [Gaumer) ; Guatemala, Tepan and Chimalte-
nango (Conradt).

The male major is from Tepan.

GEOTRUPES (p. 112).
Geotrupes viridi-obscurus (p. 113).

To the Mexican localities given, add : — Omilteme in Guerrero 8000 feet {H. H.
Smith).

A black male example from Omilteme, apparently of major development, differs from
all the numerous other specimens of the same sex examined, in the apical tooth of the
anterior tibiae being not only dilated but bifid, with the outer prong not on the same
level as the inner ; beneath, the same tibiae have only one instead of tv^^o teeth.

TROX (p. 116).

Trox punctatus (p. 116).

To the localities given, add : — Guatemala, Escuintla {Conradt).

Trox suberosus (p. 117).

To the localities given, add : — Mexico, Temax in North Yucatan ( Gaumer) ; British
Honduras, Cayo {Blancaneaux) ; Guatemala, Chimaltenango [Conradt).

9. Trox ?

Hah. Mexico, Amula in Guerrero [H. H. Smith).

A single example, closely allied to, if not the same species as, T. terrestris, Say.

CLOEOTUS (p. 118).

ClcEotus aphodioides (p. 120).

Yar. prionomus.

To the locality given, add : — Mexico, Temax in North Yucatan (Gaumer).

3 EE 2

396 SUPPLEMENT.

Clceotus nasutus (p. 124).

Two examples taken by Mr. Godman at Atlixco, on his visit to Mexico last year, are a
little larger (4 millim.) than the type, and show a more distinctly bidentate clypeus.

CHNAUNANTHUS (p. 130).

Chnannanthus discolor (p. 130).

To the Mexican localities given, add :— Amula in Guerrero 6000 feet {H. H. Smith).

HOPLIA (p. 130).

Hoplia cretacea (p. 132).

To the Mexican locahties given, add :— Atoyac in Vera Cruz and Teapa in Tabasco
(H. H. Smith).

FAULA (p. 136).

Faula pilatei (p. 136).

To the localities given, add : — Beitish Hojtdueas, Cayo (Blancaneaux).

Taula mexicana (p. 137).

To the localities given, add : — Mexico, Teapa in Tabasco {H. H. Smith) ; Guatemala,
Cohan in Vera Paz {Conradt).

Found in profusion at Teapa by Mr. Smith in April 1888.

MACRODACTYLUS (p. 138).

Maorodactylus rufescens (p. 145).

To the localities given, add : — Mexico, Omilteme 8000 feet and Xautipa in Guerrero
[H. H. Smith).

DIPLOTAXIS (p. 157).

Diplotaxis pilifera (p. 157).

To the Mexican locality given, add : — Puente de Ixtla 3500 feet in Morelos {H. H.
Smith).

2 (A). Diplotaxis (?) ?

Hah, Mexico, Jalapa {M. Trujillo).

A single example, apparently belonging to this genus.

LAMELLICOENIA. 397

Diplotaxis SDnea (p. 158).

To the Mexican localities given, add : — Chilpancingo 4600 feet, Tepetlapa 3000 feet,
Amula 6000 feet, and Mescala, all in Guerrero (H. H. Smith).

These examples are smaller (6-7 millim.) than those from Central Mexico, and the
anterior tarsi in the male have a scarcely perceptible fringe of very short hairs beneath.

Diplotaxis trapezifera (p. 159).

Yar. 1. D. consentanea.

To the Mexican localities given, add : — Omilteme in Guerrero 8000 feet [ff. H. Smith).

Var. 4. D. denigrata. A D. trapezifercB forma typica differt colore fuligineo-nigro interdum castaneo-nigro ;

clypeo breviter trapezoideo lateribus subrectis.
Long. 7-9 millim.

HaJ). Mexico, Temax in North Yucatan (Gaumer).

Many examples, offering very little variation. The clypeus is perceptibly a little
shorter than in the typical I), trapezifera ; form, sculpture, and dentition of claws offer
no difference.

6 (a). Diplotaxis ?

Hah. Mexico, Xucumanatlan (J^. H. Smith).
A single example ; indeterminable.

6 (b). Diplotaxis ?

Hah. Mexico, Puente de Ixtla in Morelos [H. H. Smith).
A single example.

Diplotaxis sinuaticeps (p. 162).

To the localities given, add : — Mexico, Temax in North Yucatan {Gaumer) ; Guate-
mala, La Tinta in Vera Paz {Conradt).

14 (a). Diplotaxis IsBvivertex.

Sat graciliter oblonga, nitida, glabra, rufo-testacea interdum supra fusco-senea ; caput sat breve et latum, vertice
convexo, Isevi, lateribus tantum sparse punctatis, clypeo brevi, latissime trapezoideo, angulis rotundatis sed
distinctis, margine antico breviter reflexo, parum sinuato, discrete punctate, sutura frontali baud impressa
fronteque plana parce punctata; tborax quadratus, medio perparum rotundato-dilatatus nullo modo
angulatus, toto subgrosse irregulariter spatiose punctatus, lateribus vage foveatis ; elytra striis punctatis
geminatis duabus, interstitiis pluripunctatis, lateribus punctato-striatis. Pygidium ( d et 9 ?) iu hoc genere
magnum, fere Iseve, grosse bicaUosum. Ungues fere sequaliter et profunde bifidi.

Long. 7-8 millim.

Hah. Mexico, Omilteme in Guerrero 8000 feet {H. H Smith).
Several examples.

398 • SUPPLEMENT.

14 (b). Diplotaxis cribriceps.

Ovata, postice ampliata, nigro-picea, minus nitida, supra dense et sat grosse annulato-punctata ; antennis palpis-
que pallida rufo-testaceis ; clypeus brevis, trapezoidalis, lateribus fere rectis, margine antico pauUo reflexo
parum sinuato, sutura frontali vix distincte impressa ; thorax versus angulos posticos rotundato-dilatatus,
deinde ad angulum lateribus sinuatis, areola angusta, disci solum laevi, basi valde marginata ; elytra glabra,
striis punctatis geminatis plus minusve distinctis. Subtus et pedes nitida, grosse distanter punctata.
Ungues dente inferiore magis curvato. Pygidium parvum, politum, discrete grosse amiulato-punctatum.

Long. 8-9 millim.

Hah. Mexico, Tepetlapa in Guerrero {H. H. Smith), Cuernavaca (Edge).
Three examples.

14(c). Diplotaxis carinifrons.

Ovata, ffinescenti- vel viridescenti-fusca, glabra, antennis, palpis et pedibus rufo-testaceis ; caput dense confluenter
punctatum, clypeo breviter trapezoidali, lateribus et apice sinuatis^^ fronte transversim crasse carinata, carina
medio interrupta punctata ; thorax post medium valde dilatatus, margine laterali post dilatationem recto,
angulis posticis obtusis, supra dense (lateribus scabrose) punctatus, basi sulcato-marginata ; elytra aequaliter
dense punctul'ata, striis geminatis parum distinctis.

Long. 9 millim.

Hah. Guatemala, Capetillo {Bodriguez), Panzos in Vera Paz (Conradt).

Two examples only were obtained of this species, recognizable by the transverse
ridges of the forehead situated close above the frontal suture.

23 (a). Diplotaxis alutacea. (Tab. XXIV. fig. 12.)

Oblongo-ovata, postice dilatata, castaneo-fusca, minus nitida, glabra, antennis palpiaque rufo-testaceis ; caput
crebre punctatum, interstitiis reticulatim elevatis, interdum seabrosum, clypeo parvo, breviter trapezoidale ;
thorax latus et brevis, medio valde dilatatus ibique lateribus fere lobatis, ante et post dilatationem sinuatis,
angulis posticis rectis, supra autice et postice transversim depressus, creberrime confluenter punctatus,
antice et postice medio juxta marginem area polita, basi immarginata ; elytra dense sed subtiliter
punctulato-strigulosa, striis geminatis et lateralibus parum distinctis. Pygidium grossissime confluenter
punctatum.

T/ong. 10 miUim.

Hah. Guatemala, Capetillo {Bodriguez), Coban in Vera Paz (Conradt).
Several examples.

23 (b). Diplotaxis aurata. (Tab. xxiv. fig. 13.)

Oblonga, fusco-viridis, aurescens, pedibus rufescentibus metallicis, antennis palpisque pallidis ; caput crebre
punctatum, clypeo brevi et lato, angulis late rotundatis, margine reflexo antice sinuato ; thorax medio
subangulatim dilatatus, angulis posticis obtusis sed distinctis, basi subtiliter marginata, supra toto crebre
sat grosse punctatus ; elytra seriatim fulvo-pilosa, grosse rugulosa et subtiliter spatiose et irregulariter
punctata. Pygidium parvum, grossissime punctatum, longe setosum. Ungues dente inferiore latiore et
breviore.

Long. 10 millim.

Hah. Guatemala, Panzos in Vera Paz (Conradt).

A single example only has been received of this di&tinct and easily recognizable
species.

LAMELLICOENIA. 399

Diplotaxis hebes (p. 164).

To the Mexican localities given, add: — Santa Clara in Chihuahua (Hoge).

25 (a). Diplotaxis ?

Hah. Guatemala, Capetillo (Rodriguez).
A single example of a doubtful species.

25 (b). Diplotaxis cribratella.

Oblonga, aenescenti-fusca, glabra ; caput crebre punctatum, clypeo brevissimo antice obtuse truncato subsinuato,
lateribus valde obliquis, fronte medio retusa ; thorax medio perparum dilatatus, grosse et crebre hie illic
confluenter punctatus, basi immarginata, angulis posticis obtusis sed distinctis ; elytra striis geminatis
striisque lateralibus et suturali distinctis cum interstitiis sat grosse punctatis. Subtus cum pygidio
parva, crebre punctata.

Long. 8 millim.

Hah. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Two examples. This species is extremely neari). hehes, but differs especially in the
form and sculpture of the thorax, which in I), hehes is rather strongly dilated much
behind the middle and is sparsely punctured on the disc.

CHL^NOBIA (p. 166).

7. Chlaenobia unituberculata.

Anguste elongata, flavo-testacea, supra discrete (capita grossius) punctnlata, thorace medio subangulatim

dilatato, angulis posticis rectis, elytris utrinque costulis duabus sublsevibus.
S . Tarsi subtus dense pilosi, antici vix perspicue dilatati. Pygidium mediocriter sequaliter convexum, sparse

punctatum, glabrum, margine apicali valde reflexo. Venter medio glaber, sparsissime punctulatus,

segmento apicali medio fovea rotunda Isevi.
$ . Tarsi nee elongati nee dilatati, subtus mediocriter pilosi. Pygidium vix punctatum, medio tuberculo unico

conspicuo lajvi, margine apicali valde reflexo. Yentris segmentum apicale convexum integrum.
Long. 14-16 millim.

Hah. Mexico, Temax in North Yucatan (Gaumer).
Seven examples.

8. Chlsenobia rodriguezi.

A C. tumulosa S 2 differt corpore toto densius et fortius punctato, vix nitido ; thorace medio angulatim

dilatato, feminaque valde discrepat pygidio hand profunde concavo etc.
$ Tarsi sicut in O. tumulosa subtus dense pilosi. Pygidium grosse punctatum, mediocriter convexum, prope

apicem fovea elongata parum profunda, margine apicali reflexo simplici. Yentris segmenta 2^-5^ dense

punetulato-pilosa, 6° polito, margine apicali medio dentiformiter producto.
Long. 14-15 millim.

Hah. GvATEMALA, Csi^etiWo (Bodriguez).
Three examples, all females.

400 SUPPLEMENT.

PHYTALUS (p. 174).

In the characters of Section I. b, at p. 177, with regard to the lower spur of the hind
tibise being connate, the words "m the male" were inadvertently omitted. The same
omission occurs under Lachnosterna at p. 196.

Phytalus (?) puMcoUis (p. 176).

To the locality given, add: — Guatemala, Coban in Vera Paz [Conradt).

The species is rather small (15 millim.) and slender, oblong, tawny-castaneous and
shining, though clothed throughout somewhat densely with short suberect ashy pile.
The elytra are closely and finely punctured, with undulating wrinkles, and without costae
or strise, the head and thorax being more distantly, and the pygidium more coarsely and
sparsely punctulated, the latter with coarser rugse. In the male the tarsal claws have
the teeth rather close together, though the lower tooth is much broader and more curvate-
deilexed, a character which induced me to query the position of the species in the
genus Phytalus. The female taken by Conradt differs from the male in the dentition
of the claws, the lower tooth being nearly as narrow and sharp as the apical one, and
more bent and apparently situated lower down the claw. This form of dentition is
entirely foreign to the Phytalus group, and the species should be removed to Lachno-
sterna. The pygidium in the female is scarcely convex and slightly prolonged, flattened
and smooth at the apex.

Phytalus cometes (p. 177).

To the localities given, add : — Guatemala, Coban in Vera Paz {Conradt).

Phytalus bolacoides (p. 182).

To the Mexican locality given, add : — Omilteme in Guerrero 8000 feet (//. H. Smith).

Mr. H. H. Smith obtained on his recent journey several examples of both sexes of
this curious little species. In none of them is the triangular circumscutellar spot so
dark and conspicuous as in the unique type specimen ( $ ), being at most indicated by a
slightly browner tint in that part of the otherwise tawny-yellow elytra, neither are the
elytra in the female so widely dilated behind. In some, apparently immature, examples
the head and thorax are testaceous-red, in others they ^re brownish-black as described.

c? . Angiiste oblongus, postice pauUo dilatatus, Pygidium punctatum, glabrum, basi convexum, apice planatum.
Venter sparse punctulatus, nitidus, segmento 5° medio apice retuso, 6° transversim valde coneavo antice
medio tuberculo compresso setifero. Antennarum clava triphylla, gracilis, articulis 2°-7'" conjunctis
sequalis.

25 (a). Phytalus omiltemius. (Tab. XXIV. fig. 14, s .)

p. jfissilahri -pToxime affinis et simillimus; differt corpore supra densius et subtilius punctato, oculis ( (5 $)
minoribus et minus convexis, et clypeo minus coneavo antice minus profunda sinuato lateribusque oblique

LAMELLICOENIA- 401

convergentibus (nee subparallelis). Antennae 9-articulat8e ; clava S gracilis, caeteris articulis conjunctis
subsequalis.
Long. 11-12 millim. S2- '

Hab. Mexico, Omilteme in Guerrero 8000 feet, Chilpancingo 4600 feet (II. H.
Smith).

The similarity in form and coloration — chestnut-brown, with broad lateral (marginal)
thoracic vitta testaceous-yellow — and, especially, the very similar sexual characters in the
pygidium and abdomen, render it doubtful if this is a distinct species from P.Jissilahris.
But the diiference in the volume and convexity of the eyes, and the flatter, broader, and
less sharply sinuated clypeus being constant in the large series of specimens taken at
Omilteme, and confirmed by the much closer and finer sculpture, I consider it necessary
to treat them as a separate specific form.

LACHNOSTEENA (p. 185).

2 (a). Lachnosterna baroni. (Tab. XXlV. fig. 15, s .)

L. heteronychoe proxime affinis, sed magis elongata fulvo-pubescens et corpore supra longe fulvo-piloso, pectore
fulvo-villoso ; caput magnum, grosse scabroso-punctatum, vertice Isevi fronteque subito declivi, clypeo
subsemicirculari apice obtuse truncato et sinuate, margine paullo reflexo ; thorax medio sat valde vix
angulatim dilatatus, angulis posticis obtusis, dense sed discrete punctulatus, margine basali medio longe
fulvo-penicillato ; elytra dense sat subtiliter punctulata, striis punctatis nuUis ; ungues dente inferiore
lato apud medium denteque basali proximo lato vix breviore.

c? . Pygidium amplum, convexum, setifero-punctulatum. Venter medio depressus, sat dense setifero-punctulatus ;
segmento 6° subdepresso, densius et longius setose. Antennae lO-articulatse, clava gracili articulis l°-7"'
conjunctis paullo longiore, articulis S^-S™ parum elongatis intus convexis, 6" et 7° intus acute productis.

$ . Pygidium pauUo elongatum, apice convexum, setifero-punctulatum. Venter convexus, sat dense setifero-
punctulatus, segmento 6*^ convexiore et grossius punctate. Antennae sicut in S sed clava parva.

Hah. Mexico, Omilteme in Guerrero 8000 feet [H. H. Smith), Mochitlan in Guerrero
(Baron).

Mr. Smith obtained one example only, a well-preserved male. The female is also
described from a single somewhat abraded specimen sent by Mr. Haribrd from Baron's
collection.

4 (a). Lachnosterna rostripyga. (Tab. XXIV. fig. 16, d .)

L. piceolce quoad formam et sculpturam simillima, colore difFert solum corpore toto rufo-castaneo. Caput
grossissime subalveolato-punctatum, vertice laevi, fronte abrupte declivi, longe pilosa, clypeo utrinque
rotundato, margine paullulum reflexo antice medio sat fortiter sinuate ; thorax medio sublobatim dilatatus,
margine laterali distanter crenato et setifero, pose dilatationem sinuato, angulis posticis rectis, grosse
spatiose punctatus punctis minoribus intermixtis; eljtra punctulata, versus suturam antice subtiliter
rugulosa, postice laeviora parce longe pilosa; pectus fulvo-pilosus. Ungues latius quam in L.piceola fissi,
dente inferiore latiore, apice oblique truncato, dente basali brevissimo et obtusissimo.

(S . Pygidium mediocriter convexum, grossissime hie illic spatiose punctatum, glabrum. Venter medio convexus
Isevissimus, segmento 5" apice medio depresso setifero-punctulato, 6° sat elongate, medio transversim
concave et grossius punctate.

BIOL. CENTR.-AMEK., Coleopt., Vol. IT Ft, 2, December 1889. 3 FF

402 SUPPLEMENT.,

2 . Pygidium grosse punctatum, medio apice tuberculo magno paullo recurvato. Venter medio convexus

laovissimus, segmento 5° piloso-punctulato, 6° fere piano, sparse punctato.
Long. 16-18 millim.

Hal). Guatemala, Chimaltenango ((7owmc?^).
Many examples of both sexes.

V Lachnosterna leonina (p. 188).

To the Mexican localities given, add: — Omilteme in Guerrero (H. H. Smith).
Numerous examples, including both sexes.

12 (a). Lachnosterna crinipennis. (Tab. XXIV. fig. 17, 5 .)

Elongato-oblonga, rufo-castanea, capite thoraceque interdum obscurioribus ; caput grosse confluenter punctatum,
vertiee laevi, fronte subito declivi, erecte pilosa, clypeo utrinque rotundato margine breviter reflexo, antico
medio emarginato subinciso ; thorax medio angulatim valde dilatatus, margine laterali setis longis
instructo, post dilatationem recto angulis posticis obtusis, toto grosse punctatus, interstitiis punctorum hie
illic elevatis vermiculatis ; elytra elongata, hand profunde punctato-rugulosa, nitida, toto seriatim erecte
et longe fulvo-pilosa, striis geminatis sat vage, suturali profunde, impressis ; pectus griseo-villosus.
Ungues dente inferiore breviore exstanti curvato acuto apud medium sito, dente basali lato parum elevato.

2 . Pygidium mediocriter convexum, glabrum, punctatum, apicem versus late concavum. Yenter medio politus,
parum punctulatus, segmentis 5** et 6° medio grosse setifero-punctatis,

cj . Ignotus.

Long. 21-23 millim.

Hah. Mexico, Omilteme in Guerrero 8000 feet [H. H. Smith).

The following nine species are represented by single examples only, in some cases in
mutilated condition, and in others doubtful as to sex : —

12 (b). Lachnosterna ?

Hah. Mexico, Chilpancingo in Guerrero (H. H. Smith).

12 (c). Lachnosterna ?

Hah. Guatemala, Tepan {Conradt).

12 (d). Lachnosterna

Hah. Mexico, Xautipa in Guerrero {H. H, Smith\

12 (e). Lachnosterna — ?

Hah. Mexico, Xautipa in Guerrero {H. H. Smith),

12 (f). Lachnosterna ?

Hah. Beitish Hondueas, Cayo {Blancaneaux).

LAMELLTCOENTA. 403

12 (g). Lachnosterna ?

Hob. Guatemala, Tepan (Cowr«(Z?^).

12 (h). Lachnosterna ? '

Hah. Guatemala, Chimaltenango [Conradt).

12 (i). Lachnosterna ?

Hob. Guatemala, Tepan {Conradt).

12 (j). Lachnosterna ?

Hah. Mexico, Omilteme in Guerrero 8000 feet {H. H. Smith).

22 (a). Lachnosterna godmani. (Tab. xxiv. fig. 18, s .)

Elongato-ovata, fulvo-castanea, nitida, fronte et thorace antice erecte fulvo-pilosis ; capite aspere confluenter
punctate, clypeo discretius punctate, brevi, utrinque mediocriter rotundato, margine reflexo antice medio
sinuato ; thorax medio subangulatim dilatatus, margine ante et post dilatationem leviter sinuato, angulis
anticis et posticis subrectis, disperse mediocriter punctatus, medio basi aureo-fulvo- penicillatus ; elytra
subtiliter plerumque discrete punctata ; pectus aureo-fulvo-villosus. Ungues dente inferiore infra medium
site brevi acuto basin versus inclinato, dente basali parvo rotundato.

^ . Antennarum clava valde elongata, hexaphylla, articulo 1" laminato caeteris fere dimidio breviore. Pygidium
convexum, setifero-punctatum. Venter medio late depressus, setifero-punctulatus; segmento 5° plaga
magna nigro-sericea, densissime breviter imbricato-setoso, 6" piano, grosse aspere setifero-punctato medio
canaliculato. Ungues intermedii baud difformes.

Long. 20 millim. cJ .

Hah. Mexico, Misantla (F. T). G.).

We have two examples of this elegant and distinct species, both males. In the
dentition of the claws it agrees rather better with the species of Section V. than with
those of Section II. ; but it seems preferable to leave it at the end of the latter section
in the vicinity of the two polyphyllous species there located.

Lachnosterna rorulenta (p. 196).

To the localities given, add : — Mexico, La Venta in Guerrero, Teapa in Tabasco
{H.H.Smith).

Lachnosterna parvisetis (p. 196).

Among the numerous examples of L. rorulenta taken by Mr. H. H. Smith are some
in which many of the elytral punctures have a short seta. As the occurrence of these
setge (not the long loose hairs with which the elytra are provided towards the apex,
and which are often seen also in*Z. rorulenta) furnishes the sole character of the present
species, it must be withdrawn and treated as a slight variety of L. rorulenta. The
pygidium in the female is impressed and bituberculated at the apex as in L. rorulenta ;
in the following very closely-allied species the form of the pygidium is very different.

3FF2

404 SUPPLEMENT.

25 (a). Lachnosterna parilis.

L. rorulentce affinissima et similis, differt corpore magis elongate et supra crebrius et profundius punctato,
minime pruinoso.

S ■ Pygidium, calcaria postica et venter sicut in L. roridenta 6 •

2 . Pygidium sicut in c? subconvexum, integrum, glabrum, distanter punctatum. Venter sicut in L. rorulenta $ .
Long. 23-25 millim.

Hab. Mexico, Temax in North Yucatan (Gaumer).
Three males and one female.

26 (a). Lachnosterna gaumeri.

Elongato-oblonga, sat gracilis, fulvo-testacea, supra glabra ; caput sat latum, discrete punctatum, clypeo brevi
utrinque rotundato, margine mediocriter reflexo antice medio sinuate ; thorax medio rotundato-dilatatus,
angulis anticis et posticis obtusis sed distinctis, regulariter et distanter punctatus ; elytra mediocriter
punctata, costa suturali valida sed prope ^cutellum obsoleta. Subtus pectus longius tenuiter pubescens.

c?. Pygidium parum convexum, distanter punctatum, punctis breviter piliferis. Venter medio concarus,
sparsim subtiliter setifero-punctatus, segmento 5° elongato, simplici, 6° fere piano apice punctato et longe
setoso. Tibiae posticse calcari inferiore brevi connato. Ungues dente inferiore brevi acuto infra medium
site, dente basali rotundato parum elevate. Antennarum clava brevis.

$ . Pygidium elongato-triangulare, parum convexum, distanter punctatum, punctis breviter piliferis. Venter
convexus, segmento 6° valde convexo et gresse setifero-punctato. Tibiae posticae calcari inferiore normali
articulate. Ungues dente inferiore longiore (apicali paullo tantum breviore) et supra medium site.

Long. 15-17 millim.

Hah. Mexico, Temax in North Yucatan {Gaumer).

Eight examples. The sexual difference in the dentition of the claws is greater than
in any other species of Lachnosterna I have examined, the lower tooth being very curved
and situated above the middle in the female, whilst it is short and straight, and placed
nearer the base than the middle, in the male. The species is also remarkable in
Section IV. for its elongate, slender form.

Lachnosterna suhmetallica (p. 204).

To the localities given, add : — Mexico, Atoyac (Flohr).

57 (a). Lachnosterna yucateca.

L. tristi (Pabr.) proximo affinis et quoad elytrorum sculp turam simillima, sed differt inter alia thoraee sparsius
et rigidius piloso. Fulve-castanea, capite et thoraee rufioribus interdum fere nigris ; clypeus subsemi-
circularis, margine tote alte reflexo, punctate, fronte scabrosa ; thorax post medium valde dilatatus, margine
(gresse crenulato) laterali antice sinuate, angulis anticis aeutis, posticis obtusis, sat gresse et dense punc-
tatus, erecte rigide pilosus ; elytra glabra, subaequaliter crebre et forte punctulata medio suturam versus
rugulosa. Ungues dente inferiore infra medium site, sat robusto, brevi, acuto, dente basali nullo.

S . Pygidium mediocriter convexum, grosse punctatum, pilis erectis valde elongatis. Venter medio sublsevis
politus, segmento 5° postice medio crebre setifero-punctato, 6° transversim concave, punctato et longius
piloso.

Long. 13-14 millim, c? .

Hab. Mexico, Temax in North Yucatan {Gaumer).
Six examples, all males.

LAMELLICORNIA. 405

57 (b). Lachnosterna crinita.

Trichestes crinita, Burm. Handb. der Ent. iv. 2, p. 359 \
Lachnosterna crinita, Horn, Trans. Am. Ent, Soc. iv. p. 286 (1887)*.
Lachnosterna glabripennis, Leconte, Journ. Ac. Phil. 1856, p. 260.

Hah. NoETH America, Texas ^ ^. — Mexico ^ 2.

Judging from the descriptions this species must be very closely allied to L. Integra
if it be not really the same. ,

Lachnosterna anodentata (p. 208).

To the Mexican localities given, add : — Puente de Ixtla in Morelos {H. H. Smith).

This species is closely allied to the recently described L. lenis, Horn, from Arizona ;
but it is clearly distinct, the clypeus being semicircular, not broad and subquadrate,
and the elytra having very short pubescence.

EUGASTRA (p. 214).

1. Eugastra

Eugastra cribrosa, antek p. 214, Tab. XI. fig. 21.

According to Dr. Horn, who has examined the unique specimen, our Mexican insect
is not the E. cribrosa of Leconte ; it is not advisable, however, to name it.

ANOMALA (p. 217).

Anomala nndulata (p. 217).

To the localities given, add : — Guatemala, Chimaltenango, Escuintla, Panzos, Coban
(Conradt).

Anomala millepora (p. 231).

To the locality given, add : — Mexico, Teapa in Tabasco (H. E. Smith).

49 (a). Anomala conradti.

Ovata, glabra, nigro-viridi-Eenea, elytris maculis obloBgis flavis interdum in fascias duas valde irregulares
(1^ basali, 2« pauUo post medmm) digestis, sed variat Mvo-testacea aeneo-metallica, vertice et interdum
plagis duabus thoracis nigro-seneis ; clypeus subsemicircularis, dense ruguloso-punctatus, vertice discrete
punetulato ; thorax transyersus, basi (marginato sulculo medio interrupto) utrinque conspicue arcuatim
sinuata, angulis posticis rectis, lateribus a basi usque ante medium paraUelis deinde ad angulos anticos
acutos convergentibus, subtiliter spatiose punctulatus, intra marginem lateralem seriatim pilifero-punc-
tulatus ; elytra sat profunde punctato-striata, interstitiis convexis sparsim punctulatis, stria 2^ basin versus
irregulariter duplicata ibique interstitiis l" et 2° planioribus. Tibiae postieae fere rectae. Mesosternum inter

406 SUPPLEMENT.

eoxas angustum et anguste declivi-carinatum. ^ . Tarsi antici ungue majore lato"robusto deflexo, dente
superiore brevi et ternii vix abbreviate ; articulo ungniculari robusto, infra profunde sinuato.
Long. 11-13 millim. d $ .

Sab. Guatemala, Coban and La Tinta in Vera Paz (Conradt).
Several examples.

68 (a). Anomala smithi.

A. cupricollis individuis minoribus similis, sed diflFert corpore supra densius et subtilius punctato, vix nitido.
Fusco-seneus, elytris fulvo-testaceis disco interdum grosse fusco-maculatis. Caput densissime confluenter
punctulatum, opacum ; clypeo minus quadrate, angulis magis rotundatis ; thorax et scutellum dense sed
plerumque discrete punctulati, subnitidi ; elytra subtiliter et densissime confluenter punctulata, utrinque
striis geminatis tribus grosse et irregulariter punctatis, stria suturali apicem versus solum impressa.
Mesosternum apice (juxta metasternum) vix incrassatum. Pygidium densissime subtiliter scabroso-
punctulatum, opacum. c? . Ungues antici profunde fissi, dente superiore tenuiore, baud breviore, articulo
unguiculari subtus acute sinuato.

Long. 16-18 millim. S-

Hah. Mexico, Teapa in Tabasco {H. H. Smith).

Four examples, all males.

The two unnamed Anomalce, Nos. 45 and 104, from Playa Vicente, are possibly
females of this species ; but their mutilated condition, especially the absence of anterior
and intermediate tarsi, renders their determination doubtful. They are more oblong
in form and somewhat smaller than the four examples above described.

Anomala nitidula (p. 246).

The following beautiful colour-variety is to be added : —

Yar. a. escidntlensis. Rufo-cuprea, tborace vitta marginali albo-testacea, elytris cuprascenti-fulvis.

Hab. Guatemala, Escuintla (Conradt).
One male example only.

Anomala vidua (p. 247).

The following is an interesting local modification : —

Yar. A. crassesculpta. — Caput densissime minute scabroso-punctatum, vertice laeviore ; thorax grosse spatiose
punctatus ; elytra utrinque costis tribus elevatis, interstitiis sat grosse punctatis. (^ . Eufus, thorace vitta
lata (interdum in duas divisa) elytrisque nigris ; $ dilutius rufa, elytris flavo-testaceis, thorace maculis
discoidalibus duabus nigris. Pedes utroque sexu rufo-testaeei tarsis semper concoloribus.

Hab. Guatemala, Chimaltenango (Conradt).

It will be seen that the modification relates chiefiy to the sculpture, the only colour-
diflference being that the tarsi in the variety are pale in both sexes and black (at least
in all the examples before me) in the Mexican A. vidua : an analogous diff'erence in the
form and colour of the sexes is presented by both type form and variety.

LAMELLICOENIA. 407

EPECTINASPIS (p. 250).

5 (a). Epectinaspis chalconota.

Oblonga, viridi- vel ciij)reo-8enea interdum aenescenti-rufa, supra polita, glabra, elytris nigro-seneis, senescenti-
castaneis vel flavo-testaceis seneo-nitentibus interdum fuseo- vel rufo-plagiatis ; caput medio depressum,
densissime minute seabrosum ; thorax convexus, discrete punctatus ; elytra fortiter punctato-striata, striis
2* et 7* basin versus diffusis, multipunctatis, margine laterali medio ( c? 2 ) pauUo incrassato. Pygidium
densissime confuse strigulosum, longe griseo-pubescens.

(S . Clypeus magnus angulis rotundatis, margine alte elevato. Tarsi antici ungue majore deflexo, lato, dente
superiore tenuissimo paullo breviore ; articulo unguiculari subtus valde sinuate.

2 . Clypeus minor et minus (juadratus, margine vix elevato. Tarsi antici ungue majore gracili fisso.

Long. 8-10 millim.

Hab. Guatemala, Chimaltenango 6000 feet (Conradt).
A good series of examples.

STRIGODERMA (p. 252).

Strigoderma sallsei (p. 255).

To the Mexican localities given, add: — Chilpancingo 4000 feet, and Xucumanatlan
7000 feet, in Guerrero {H. H. Smith).

Strigoderma teapensis (p. 258).

Several examples were taken by Mr. H. H. Smith, also at Teapa, among them a
colour-variety, in which the head and thorax are testaceous-red tinged with green, the
lateral pale thoracic vitta margined with a brassy-green line, the elytra wholly pale
testaceous with a slight brassy lustre, and the femora and tibiee rufo-testaceous tinged
with coppery.

15 (a). Strigoderma presidii.

S. teapensi similis, sat breviter quadrato-ovata, fusco-senea, nitida, elytris pallide fuscis margine laterali
apicalique strigaque submarginali nigricantibus ; fronte, tborace et pygidio erecte grisco-pilosis, eorpore
subtus pedibusque sparsius griseo-pilosis ; caput densissime eonfluenter punctulatum, clypco subsemi-
circulari, lateribus fere parallelis ; tborax dense sed discrete punctulatus, aequaliter convexus, basi margina-
tus, paullo ante medium dilatatus ; scutellum punctatum ; elytra dorso paullo planata, conspicue efc
regulariter punctato-striata, inter suturam et bumerum striis septem, interstitiis angustis baud elevatis.
Pygidium politum, sparse punctatum. Mesosternum tuberculo valido minime porrecto. Epimera meso-
sternalia margine acuto vix elevato.

Long. 8 millim. d" .

Eab. Mexico, Presidio near Mazatlan (Forrer).

The mesosternal epimera do not rise nearly to the level of the elytral humeri. S.
presidii according to this character would be an Anomala, but it has so close an affinity
with S. teapensis that its natural place must be next to that species.

408 SUPPLEMENT.

DILOPHOCHILA (p. 261).

Dilophochila bolacoides (p. 261).

To the localities given, add : — Guatemala, Tepan (CowratZ^).

CHLOEOTA (p. 268).
Chlorota cincticoUis (p. 269).

To the localities given, add:— Guatemala, Coban in Vera Paz (Conradt).

RUTELISCA (p. 270).

Eutelisca flohri (p. 270).

To the Mexican localities given, add: — Omilteme in Guerrero 8000 feet {E. E.
Smith), Amecameca, Atlapango (Flohr).

A few beautifully preserved examples of both sexes.

Mr. Flohr informs me that this interesting Rutelid occurs chiefly under pine-bark,
but sometimes under oak-bark.

PELIDNOTA (p. 273),

Pelidnota notata (p. 273).

To the Mexican locality given, add : — Teapa in Tabasco (E. E. Smith).

Pelidnota virescens (p. 274).

The type form and var. 1 were both taken in the State of Guerrero by Mr. H.
H. Smith, the former at Mescala and Tepetlapa, the latter at Venta de Pelegrino and
Tierra Colorada. Also the following new variety : —

Yar. 5. Frons et thorax laete saturatius viridi-a3nea.

Eab. Mexico, Tepetlapa in Guerrero (E. E. Smith).

One example.

Pelidnota punctulata (p. 276).

According to Mr. Flohr, the locality " Jalapa " given by Herr Hoge is a mistake, as
the species does not occur there. It is an inhabitant of the " tierra caliente." He has
received it from Minatitlan, Atoyac, and Playa Vicente. A dark brassy-brown, nearly
black, variety has been received from Conradt taken at Escuintla, Guatemala.

LAMELLICOENIA. 409

10. Pelidnota cylindrica.

Pelidnota cylindrica, Waterh. Trans. Ent. Soc. Lond. 1876, p. 24 \
Rab. Guatemala 1.

A very elongate brassy-green species 16 lines long ; not contained ia our collections.

PLUSIOTIS (p. 276).

Plusiotis lacordairei (p. 280).

To the Mexican localities given, add : — Omilteme 8000 feet, and Xautipa in Guerrero
(E. E. Smith).

Plusiotis prasina (p. 282).

To the Mexican localities given, add : — Omilteme in Guerrero 8000 feet {E. E.
Smith).

Plusiotis laniventris (p. 283).

Mr. Flohr states that this species is confined in its range to the " tierra fria." He
finds it near the city of Mexico and also at the Hacienda de las Trojes, on the border
of the States of Mexico and Michoacan. It feeds on the leaves of the oak and alder.

Plusiotis adelaida (p. 283).

To the localities given, add : — Mexico, Omilteme in Guerrero 8000 feet {E. E.
Smith).

This species also, according to Mr. Flohr, does not occur outside of the " tierra fria "
in Mexico. Hoge's localities Jalapa and Oaxaca are wrong ; his specimens were obtained
near Mexico city, Atlapango, and Parada. Mr. Flohr adds as localities, Quecholac, Xolo-
loya, on the slopes of the Cofre de Perote. It feeds on the young shoots of pine-trees.

Plusiotis rodriguezi (p. 283). (Tab. XXIV. fig. 21, var.)

To the localities given, add : — Mexico, Omilteme in Guerrero 8000 feet {E. E.
Smith).

One of Mr. Smith's specimens is a clayey-reddish-tawny variety similar to the corre-
sponding variety of P. costata mentioned at p. 282. It difiers from that, however, in
the sides of the elytra and the under surface having a rich metallic tinge, thus corre-
sponding with the green typical form.

20 (a). Plusiotis alticola. (Tab. xxiv. fig. 22.)

p. lecontei proximo affinis, differt prsecipue corpore elongato-oblongo supra pallide viridi, capite, scutello, thoracis
elytrorumque marginibus argenteis ; clypeus sicut in F. lecontei parvus, brevis, subsemicircularis, dense

BIOL. CENTR.-AMEK., Coleopt., Vol. II. Pt. 2, December 1889. 3 GG

410 SUPPLEMENT.

minute scabrosus, auratus, sutura frontali impressa, fronteque utrinque juxta oculum aureo-marginata ;
thorax conspicue angustior, post dilatationem nuUo modo dilatatus angulisque posticis fere rotundatis,
subtilitcr punctulatus ; elytra sicut in P. lecontei valde punctato-striata, dorso pauUulum planato, callo
apicali baud metallico. Pygidium fere Iseve. Subtus longe, pectore longius et densius, fulvo-villosa.
Pedes flavi, ^neo-metallici, tarsis rufioribus. d ? Antennae quam in P. leconUi longiores clavaque caiteris
articulis conjunctis longiore, rufse.
Long. 26 millim.

ffab. Mexico, Sierra Nevada de Colima 11000 feet [Bichardson).
One example.

20 (b). Plusiotis orizabaB. (Tab. XXIV. %. 24.)

p. lecontei (partim), antea pp. 283, 284.

P. lecontei affinissiraa, sed multo major, elytris lastius metallico-nitentibus, etc. Oblonga, robusta, supra
pomaceo-viridis, elytris argenteo-viridi tinctis; thorax basin versus minus dilatatus angulisque magis
obtusis, margine laterali pauUo flexuoso, subtilissime alutaceus et distinctius punctulatus ; elytra punctato-
striata, interstitiis convexis. Pygidium et propygidium argenteo (subaurato) metallica. Pectus dense
fulvo-cinereo-villosus (P. lecontei villositate vulpino-rufo). Femora et abdomen sicut in P. lecontei
argenteo-rosacea, tibiis et tarsis viridi-seneis.

Long. 30 miUim.

Hah. Mexico, Suapam, Volcan de Orizaba {Salle).

M. Salle is of opinion that this species does not belong to Plusiotis ; but I can see no
difference except in the shorter and more semicircular clypeus, which it has in common
with P. lecontei and P. alticola. The base of the labrum is broad and sinuated as it is
in Plusiotis and the Rutelidae generally.

The unique example is in a damaged condition and I am not sure that the outline of
the thorax has not been distorted. The colour of the dense and long villosity of the
breast is the character which chiefly inclines me to think the species is distinct from
P. lecontei.

CHRYSINA (p. 285).

Chrysina macropus (p. 285).

Yar. mniszechi.

Mr. Flohr believes that Herr Hoge's examples of this variety came, not from Jalapa,
but from the neighbourhood of Tepansacualco.

Var. adolpTii.

To the Mexican localities given, add: — Omilteme 8000 feet, and Xautipa in
Guerrero {H. H. Smith).

Two females, one male, the latter belonging rather to the var. mniszechi ; but all
gradations between these two forms are novy known.

LAMELLICOENIA. 411

Chrysina amoDna (p. 286).

The female example from Ciudad in Durango belongs to the following species, and
the locality should therefore be erased.

3. Chrysina erubescens. (Tab. xxiv. fig. 23, $ .)

C. amoence afflnissima, sed differt corpore pauUo majore coloribusque diversis. Supra pallide pomaceo-viridis,
fronte et clypeo erubescentibus, scutello thoracisque lateribus leviter rosaceis ; subtiis differt pectore
obscure seneo ventroque dimidio basali argenteo-seneo politissimo dimidio apicali rufo-asneo minus nitido,
femoribus tibiisque rufo-testaceis, politis, submetallicis, tibiis apice cserulescentibus, tarsis cj'aneis ; pygidio
Isetius carnescenti-lateritio, dense punctulato linea dorsali Isevi. Supra sicut in C. amoena dense hie illic
rugulose punctulatis punetis minutis intermixtis. cJ . Pedes postici parum elongati sed femoribus incras-
satis, tibiis rectis latis intus basi subito profunde emarginatis, dentafcis.

Long. 40 millim. c? 2 •

Rab. Mexico, Ciudad in Durango [Edge), Durango city (Becker)^ Sierra de Nayarit
(Bi chard son).

Three examples, a male and two females. Our figure is taken from a female
from Ciudad.

4. Chrysina beckeri.

C. amoence proxime affinis et simillima. Differt colore supra cum pygidio pauUo dilutius pomaceo-viridi
leviter metallico, subtus fulvescenti-viridi pedibusque fuscescenti-cseruleis, tarsis chalybeis. Supra
nitidior, sparsius punctulata, interstitiis punctorum absque punctulis minoribus, elytrisque disco sub-
seriatim punctulatis. S • Pedes postici crassiores baud longiores, praecipue femoribus dilatato-compressis ;
trochanteribus apice baud prolongatis.

Long. 36 millim. d 2 •

Hah. Mexico, Canelas in the Sierra Madre de Durango {Becker).

A pair of this species has been sent me by Mr. Flohr, who points out its close
affinity with C. amoena. It differs from C. amoena in the sparser punctuation of the
upper surface, in which character it is intermediate between C. amoena and the more
strongly punctured examples of C. macropus. It agrees with C. amoena in the pro-
minent, though small, mesosternal process, which is narrower and more acute, though
much stouter than in C. erubescens.

I have named it, at Mr. Flohr's request, after the discoverer, Mr. Richard Becker of
Durango, who is exploring with great success the Coleopterous treasures of the
interesting region near which he resides.

MACROPOIDES (p. 286).

Macropoides nietoi (p. 287).

To the Mexican localities given, add : — Aloyac, Monte verde (apud Flohr).

Macropoides mniszechi (p. 287). \

To the Mexican localities given, add : — Atoyac (H. H. Smithy Flohr), Misantla [Flohr).

3GG2

412 SUPPLEMENT. *

When fresh this fine species is of a beautiful bluish-green colour, which is soon lost
after death. The Misantla specimens were cut out of tree-trunks by Mr. Flohr.

HETEROSTERNUS (p. 287).

Heterosternus buprestoides (p. 288).

the type specimen of this rare species, Mr. Flohr informs me, on the authority of
M. Blanchard, was taken near Zongolica ; a second example, he says, has been taken
on an Aguacatillo tree between Huatusco and Mirador ; and a third, now in the
Philadelphia Museum, was obtained from Sumichrast, but in what locality it was
found is not known.

PARISOLEA (p. 288).

Parisolea alba (p. 288).

Parisolea fulva, ante^ p. 288, Tab. XVII. fig. 1.

The locality of this species is Jalapa, where it was cut out of old or felled Liquid-
ambar trunks [Flohr).

P. fulva was founded on examples found in the manner above-mentioned, but curiously
discoloured by being kept in a damp locality ; it must therefore be withdrawn.

METAPACPIYLUS (to precede the genus ^s/?^(^oZea, p. 296).

Gen. Pachylo affinis, sed valde differt mandibulis longe exsertis recurvis acuminatis : Gen, Suteliscce quoque
affinis a quo differt inter alia labro lato corneo. Oblongo-quadratus, convexus. Caput inerme, fronte
pauUo declive : clypeo semiovato, marginibus praecipue antico reflexis. Labrum latum, conspicuum, ab
epistomatis basi exstans. Mandibulse sicut in Ancognatha etc. recurvaB, acutse. Mentum parte ligulari
parva, triangulari. Antennae lO-articulatse, clava caeteris articulis conjunctis c^* longiore, $ paullo breviore.
Mesosternum inter coxas pauUulum incrassatum. Pedes sat breves ; tibiae subcompressae, setosae, 4
posticae margine apicali setuloso et extus late unidentato. Tarsi setosi ; ungues graciles, aequales, exteriore
in $ omnibus pedibus basin versus longe unidentato, in S in pedibus 4 posterioribus validius unidentato,
pedibus anticis ungue anteriore incrassato, a basi valde inflexo et apice valde inaequaliter fisso.

The interesting form on which this genus is founded partakes of the characters of
Fachylus, Oryctomorphus, and Parastasia, with the allied Indian forms Didrephano-
jphorus, Peperonotay &c., genera widely separated in the received classification. It has
much also in common with the genus Butelisca, which would be better placed in its
vicinity than in the group Rutelina, the tarsal claws not being really unequal in length,
their different curvature only making them appear so. The North-American genus
Polymoechus apparently belongs to the same hitherto unindicated group of genera.

1. Metapachylus sulcatus. (Tab. xxiv. figg. 19 j , 20 $ .)

Niger, politus, elytris macula utrinque juxta scutelli basin et interdum thoracis lateribus, femoribus apice
maculaque frontali, flavo-testaceis, antennis et palpis piceo-rufis ; clypeus et frons minute scabrosa ;
thorax transversus, sparsim punctulatus, linea dorsali lata impressa a basi ad apicem mediocriter rotundato-
angustatus, tenuiter marginatus, linea impressa marginali basi medio late interrupta, angulis posticis

LAMELLICOENIA. 413

rectis sed apice obtusis ; elytra profunde punctato-sulcata, interstitiis convexis, margine lateral! (S tenui,
2 medio paullo incrassato. Pygidium c5" 5 latum, medio Iseve, lateribus longe piloso-punctulatis.
Pectus, cox» posticae femoraque subtus fusco-nigro- vel obscure fulvo-villosa.
Long. 17-22 millim, J § .

Jlab. Guatemala, Tepan (Conradt).

Three examples, viz., two males, one female ; the female with imperfect hind tarsi,
the claws of which are inferred to be toothed like the others.

ANCOGNATHA (p. 297).

Ancognatha quadripunctata (p. 298).

To the localities given, add : — Guatemala (Conradt).

CYCLOCEPHALA (p. 299).

Cyclocephala complanata (p. 301).

A single example, taken by Conradt at Coban in Vera Paz, is much larger than any
of the other Mexican or Guatemalan examples I have seen, measuring 21 millim., the
others ranging from 16 to 17 millim.

CHEIROPLATYS (p. 320).

Cheiroplatys isodonoides (p. 322).

To the Mexican localities given, add : — Amula in Guerrero 6000 feet (H. H. Smith).

GOLOFA (p. 332).

Golofa imperialis (p. 334).

To the localities given, add : — Mexico, Amula 6000 feet, Soledad 5500 feet, and
Xucumanatlan 7000 feet, in Guerrero (H. H. Smith).

A good series has been supplied by Mr. Smith, including one large example 50 millim.
long, which is probably of the fullest development, and tends to establish the validity
of the species. Its thoracic horn is only 10 millim. long (measured from the surface
of the thorax behind it), but the apex is but very little dilated and angulated laterally
and at the tip. In the largest males of G. pizarro, measuring 42 millim., the thoracic
horn is fully 15 millim. long and very broadly dilated and tridentate at the apex.
The elytral humeri are more often concolorous than black. The four female examples,
all black, show a constant difference from G. pizarro, female, in the nearly smooth
apical half of the pygidium and less rugosely punctured elytra.

414 SUPPLEMENT.

iEGOPSlS (p. 337).

.ffigopsis curvicornis (p. 337).

jEgopsis westwoodii, Thorns. Mus. Scient. p. 17, t. 6. fig. 2\

M. Salle informs me that the only other described species of this genus, ^. west-
woodii, Thorns., is not from the interior of Brazil as Thomson stated ^ but from Panama.
This is confirmed by the fact that the slight dififerential features mentioned by Thomson
are seen in at least one of our Panama examples.

ISCHNOSCELIS (p. 343).

Ischnoscelis dohrni (p. 343).

Mr. Flohr informs me that an example of this rare species has been taken at Tonila.

COTINIS (p. 346).

Cotinis mutabilis (p. 346).

Var. 2. C. mexicana (p. 346).

To the Mexican localities given, add : — Omilteme 8000 feet, Amula 6000 feet, Venta
de Zopilote 2800 feet, and Xucumanatlan 7000 feet, all in Guerrero {H. H. Smith).

All these examples have a pointed clypeal horn,

Yar, 8. C. atrata (p. 347).

Add to the Mexican localities: — Amula 6000 feet, and Venta de Zopilote 2800 feet,
in Guerrero (H. H. Smith).

13 (a). Cotinis salicis. (Tab. XXIV. fig. 25.)

C. antonii affinis et simillima, sed valde differt thoracis lobo obtuso sat late truncato. Nigra, polita, pubescentia
subtus nigra ; caput quadratum, fronte late concava, punctata et nigro-setosa, carina centrali vix elevata
et obtusa usque ad clypeum continuata ibique gradatim subsidente ; clypeo lato, margine antico valde
reflexo recto ; thorace elytrisque, prgecipue lateribus, sparsim punctatis. Pygidium strigulosum, plagis
duabus cretaceis. Processus mesosternaiis quam in C. antonii pauUo longior, apice rotundato. c^.

Long. 20 millim.

Ifab. Mexico, near the city (Flohr).
In decayed willow-trees (Flohr).

13 (b). Cotinis rufipennis.

Cotinis ? (no. 18), antea p. 353.

C. antonii affinis. Oblongo-quadrata, nigra, velutino-opaca, subtus (et -capite) glabra polita, pectore pedibusque
nigro-hirsutis, elytris (sutura angusta nigra excepta) miniato-ruifis ; clypeus sicut in C. antonii margine
antico recto oblique reflexo, fronte quadrata, concava, sparsim punctata carinaque alta acuta longe ante
clypei apicem subabrupte terminata ; antennae nigrse ; thorax trapezoideus, sparse punctatus, disco Isevi,
ante medium pauUo dilatatus, lobo basali mediocre, obtuse rotundato scutelloque conspicuo acute triangu-

LAMELLICOENIA. 415

lari ; elytris absque sculpfciira opaeissimis. Pygidium nitidum, glabrum, subtiliter sparse strigosum. Pro-
cessus mesosternalis quadratus baud porrectus, antice truncatus.

cJ . Tibiae anticse extus inermes, dente apicali obsolete. Tborax apud marginem anticum medio pauUo pro-
ductus culminatus. Venter late eoucavus. Pygidium convexum, utrinque prope apicem late foveatum.

§ ? Tibiae anticse extus dente unico brevi, deute terminaii recte prolongate.

Long. 16-20 millim.

Hah. Mexico, Canelas in the Sierra Madre de Durango {Becker)^ Santa Clara in
Chihuahua (H'oge).

The example brought home by Herr Hoge is much crushed, and I am not sure that
it is a female, though it is broader and larger than the undoubted male specimen
received from Mr. Flohr.

GYMNETIS (p. 353).

13 (a). Gymnetis vandepoUi. #

Gymnetis kerremansi, antek p. 357^ cum Tab. XXI. figg. 7, 8 (nee Van de Poll).

M. Van de Poll having sent me a drawing of G. kerremansi, I perceive that his is a
species quite distinct from that vs'^hich I described and figured from Chontales and
Bugaba under this name, and which I now name as above. G. kerremansi will remain,
therefore, with the locality " Panama " only.

Obs. G. wollastoni, Schaum, Trans. Ent. Soc. Lond. v. (1) p. 66, t. 8. f. 3, described
as from Mexico, is a Venezuelan insect.

EUPHORIA (p. 362).

1 (a). Euphoria monticola.

2 • Oblonga, supra nitida, glabra, saturate viridis vel olivaceo-nigra, elytrorum lateribus maculis nonnuUis cre-
taceis ; clypeus quam in E. lesueuri paullo longior, lateribus pauUo rotundatis, antico angustatus et sub-
bidentatus cum fronte eoucavus, grosse punctatus, medio vertice obtuse carinato ; thorax sat grosse discrete,
disco subtilius et dispersius, punctatus, lateribus subrugosis, lobo basali subrecte truncate ; scutellam laive ;
elytra utrinque valide bicostata, sparsim punctulata apicemque versus rugulosa, interstitio prope suturam
postice plaga nigro-velutina ; pygidium confluenter subtiliter rugulosum, nitidum, sparse incumbente
pilosum. Subtus olivaceo-nigra, polita, cum pedibus tenuiter griseo-pilosa. Tibise anticae tridentatae.

Long. 18 millim. 5 •

ffab. Mexico, Canelas in the Sierra Madre de Durango [Becker).
A very distinct species allied to E. lesueuri and E. candezei.

Euphoria lineoligera (p. 366).

I To the Mexican localities given, add : — Rincon 2800 feet, Mescala, and Venta de

Zopilote 2800 feet, all in Guerrero (H. H. Smith).

Euphoria biguttata (p. 366).

(To the localities given, add :— Mexico, Tepetlapa 3000 feet, and Acaguizotla 3500
feet in Guerrero {H. H. Smith).

416 SUPPLEMENT.

Euphoria dimidiata (p. 367).

To the localities in Mexico, add : — Mescala, Chilpancingo 4600 feet, Rincon 2800
feet, Venta de Peregrino, Acaguizotla 3500 feet, all in Guerrero {H. H. Smith).

Euphoria pulchella (p. 367).

M. Salle believes that there are two species mixed up in the varieties attributed by
authors to E. pulchella^ one in which the elytra are plane and another in which they
are prominently bicostate. The two species would stand thus : —

13. Euphoria pulchella,

Elytra utrinque bicostata.

Cetonia pulchella, C. ferrugata., and C. montes'uma. Gory & Perch.

13 (a). Euphoria childreni.

Elytra disco plana.

Cetonia children and C. thelasco. Gory & Perch. /

The colour-varieties iu the two species, though similar, do not exactly correspond ;

but according to our series of specimens the two forms occur together in many

localities.

Euphoria subtomentosa (p. 373).

To the Mexican localities given, add : — Chilpancingo 4600 feet in Guerrero [H. H.

Smith).

INDEX.

[Names in small capitals refer to Families &c. ; those in roman type to the chief reference to each species included in the work ;
* those in italics to species incidentally mentioned, synonyms, &c.]

. • . Page

ACANTHOCEEUS 126

Acanthocerus . .118,120,124,128, 129

antiquus 119

aphodioides. 119

eulampros 126

globosus 119

iumeralis 126

Tmmeralis 127

icevistriatus , , 120

macleayi 119

micros. » ., 128

nitens. 125

plicatus 121

- politus ...

■ puncticollis

■ relucens ,

var. mexicanus

. 126
. 119
. 127
. 127

rotundicollis 128

semipunctatus 127, 128

seriatus ■ 127

sesquistriatus 127

sticticus 119

vicarius 127

vicarius 128

AcLOPiD^ 129

Aclopus 129

JEgidium 105

colombianum 105

, var. cribratum .... 106

, var. aquamatum .... 105

^GOPSis 337, 414

curvicornis 337, 414

westwoodii 414

iEsALUs.. 2,382

uEsalus 1

neotropicalis 2

, neotropicalis 382

scarabceoides 2

smithi 382

trogoides 2

Agacephala 337

curvicornis . 337

Agamopus lampros

AgaO CEPHALIN-2E

Allorhina

anomala . . . ,

hueti . .......

Page

42

337

343, 344, 358

344

358

hypoglauca 343

insignis 344

lansbergei 343

Alvarinus suhmetallictis 162

Amblyodtjs 342

taurus 342

Amithao 359

Amithao 345, 361

albopictus 360

cavifrons 360

cavifrons 359

erythropus 361

hsematopus 360

lafertei 359

metallicus 360

pyrrhonotus 360

pyrrhonotus 361

thomsoni 360

Anaides 117

fossulatus 118

laticoUis 118

simplicicoUis 118

Ancistrosoma 154

Ancognatha 297, 413

Ancognatha 412

sequata 297

cequata 298

crassimana 297

bumeralis 298

• jamesoni 297

laevigata 297

lutea 297

manca 298

quadripunctata 298, 413

quadripunctata 297

scarah(soides 296, 297, 298

ustulata 298

Ancylonycha 185

Page

Ancylonycha cinnamomea 197

cribricollis 189, 190

213
212
180
191
196
190
203
198
208
195
260

laticeps . . .

mexicana .

pallida . . .

ravida ...

rorulenta .

rtigicollis .

rugulosa .

setifera . . .

stipitalis .

testaceipennis

Anisoplia 216,

metallescens 261

Anomala .;...; 217, 405

Anomala

Anomala

. . . . 216, 226, 226, 227,

247, 248, 250, 252, 253,

260,262,406,407

— 222

. ?
, p

?
,?
. ?
. ?
.?

?

.?
, ?
.?
.?
,?

?

.?
.?
.?
.?
-P
.?
.p
.?
.?

Agamopus 42

BIOL. CENTK.-AMEK., Coleopt., Vol. II. Pt. 2, January 1890.

adspersa .

222
222
224
228
228
228
231
231
232
234
235
237
238
239
240
242
248
248
249
249
249
250
260
231

3HH

418

INDEX.

Page

Anomala amphicoma 232

atomogramma 231

atriplex 248

attenuata 248

■^ barbicoUis 220

bimaculata 239

binotata 229

binotata 231

calligrapha 220

calonota 242

calonota 244

carinifrons 249

castaniceps 248

castaniceps 249

cavifrons 249

centralis 226

championi 222

cbevrolati 226

chiriqiiina 218

chiriquina 219, 220

chlorotoides 243

chrysanthe 243

chrysomelina 234

cincta 236

cincta 224, 232, 235

cincta, var. polychalca . . 236

cincta, var. polychalca . , . . 237

cnethopyga 238

compressicoUis 219

compressicoUis 220

conradti 405

costaricse 235

— • — costaricce 224

cribriceps 221

cupricoUis 238

cupricoUis 239, 406

■ cupricoUis, var. coagulata 238

decolor 227

decolor 228

denticoUis 228

discoidalis 217

discoidalis 218

: doryphorina 234

erythrocephala 249

eucoma 232

eucoma 233

euliasa 219

flavilla 227

Jlavipennis 227, 228

flavizona 223

I'oraminosa 229

foraminosa 230, 231

forreri 237

fulgidicolUs 236

. gemella 226

Page

Anomala granulipyga 241

, var. chontalensis . . 241

guatemalena 218

guatemalena 219, 220

Mspidula 228

histrionella 222

hopfneri 224

hopfneri 225

inconstans 225

inconstans 224

irrorata 230

Isesicollia 233

latreillei 236

lepida 244

leivyi 244

lurida 225

maculicollis 218

marginata 241

marginicollis 241

, var. valdecostata . . 242

megalia 239

megalops 227

mexicana 250

micans 245

micans 222, 246, 252

microcephala 240

millepora 231, 405

minuta 247

nigripennis 237

nitescens 242

nitidula 246, 406

nitidula, var. escuintlensis 406

nutans 246

ocbrogastra 223

ochroptera 232

phosphora 244

plurisulcata 240

polygona 229

prsecellens 240

punctatipennis 221

pupillata 239

retusicollis 220

rhizotrogoides 247

rhizotrogoides 248

rhodope 235

ruatana 226

sejuncta 224

sejuncta 232

semicincta 237

semitonsa 233

sniitM 406

specularis 243

sticticoptera 230

sticticoptera 231, 239

sulcans 235

Page

Anomala sulcipennis 240

suturalis 226

suturella 226

sylphis 233

tessellatipennis 249

tolensis 223

trapezifera 229

undulata 217, 405

undulata 218, 219, 221

valdecostata 241

valida 239

vanpatteni 241

variegata 221

variolata 237

variolata 238

versecrucis 224

vercecrucis 232

vetula 248

vidua 247, 406

vidua 246

vidua, var. crassesculpta. . 406

villosella ." 246

viridicollis 236

xantholea 245

xantholea 246

xiphostetha 244

zapotensis 221

Akomalin^ 216

Anohetus 184, 185, 212

Anoplognathin^ 291

Antichira 265

Antichira 243, 263, 264,

267, 268, 279

aterrima 266

calcarata 267

catomelsena 267

chloropliana 267

concinna 265

gratiosa 268

haroldi 265

hirtiventris 266

hirtiventris 267

iodiella 267

lucida 265

lucida 2QQ

pubiventris 266

rufonitida 266

tetradactyla 266

tristis ; 266

Antichibina 262

Aphengium 42

seminudum , 42

sordidum 42

Aphodiidje 83

Aphobius 83, 391

INDEX.

419

Page

Aphodius ? 85

? 86

? 392

ahditus 101

anthrax 89

aztecus 84

bifrons 90

bifrons 392

brasilienm , . , 87, 88

charmionus 89

chiriquimcs 89

coloradensis 66

constricticoUis 392

contaminatus 392

cruentatus 391

cuniculus 85

dep-essus 90

diminutus 89

diminutus 90

dugesi 83

duplex 87

duplex 88, 92, 392

erythrinus 89

euprosopus 87

euprosopus 392

Jlavocinetus 85

floliri 86

fuliginosus 90

fuliginosus 91

glyptus 86

granarius 84

gravidas 91

grossus 83

guatemalensis 88

guatemalensis 89, 90

hcemon-hoidalis 83

hamatus 83

hogei 90

Mgei 91

hogei, var. durangoensis . . 91

inibricatus 99

indutilis 84,391

innexus 85

inquinatus 87

lansbergei 84

larrese 392

latecrenatus 86

lividus 85

luridiventris 92

luridus 90

mexicanus 91

mexicanus 392

oleosus 85

omiltemius 392

opisthius 392

opisthius 92

Page

Aphodius panamensis 88

prodromus. 88

puncticeps 91

rubeolus 90

rufipes 90, 392

ruricola 84

sallaei 84, 391

scotinus 89

strigatus 94

stupidus 86

ursinus 86

villosipes 92

villosipes 393

vittatus 84

xanthus 90

Aphonus clunalis 321

APOBOI.AUS 129

fimbriatus 130

Abeodinje 289

Argyripa 343

anomala 344

lansbergei 343

lansbergei 344

subf asciata 344

ASPIDOLEA 296

Aspidolea 412

singularis 296

AST^NA 135

cognata 136

macilenta 136

opalicauda 136

At^ottjs 94, 393

Atcsnius 92, 93, 102, 104

abditus 101, 394

attenuator 101

capitosus 98

carinator 101, 393

carinator 394

castaniellus 95

complicatus 97

complicatus 393

cribrithorax 95

cribrithorax 96

euglyptus 97

figurator 99

Jigurator 101

gracilis 99

gracilis 100

hirsutus 98

imbricatus 99, 393

inops 101

intermedius 100

jalapensis . , 100

limbatus 98

liogaster 94

liogaster 95, 96

Page

Atsenius mariarum 102

perforatus 97

polyglyptus f 9

polyglyptus 100, 101

polyglyptus, var. bierony-

myi 100

polyglyptus, var. hieronymi 101

scalptifrons , 100

scalptifrons 101

sculptilis 100

scutellaris 96

scutellaris 97

setiger 98

sordidus 99

steinheili 393

steinheili 100

ste7'corator 94, 95, 96

strigatus 94

strigatus 95, 96, 98, 99

strigicauda 96

strigicauda 95, 97

texanus 101

Ateuchus humectus 385, 386

lituratus 33

septem-maculatus 27

Athybexts 108

Athyreus Ill

bifurcatus 108, 109

Catharines 110

championi 108

championi 109

excavatus 110

, var. lanuginosus. . . . 110

, var. mexicanus .... 110

fissicornis 109

pholas 109

reichei 109

tridens 108, 109

tridentatns 109, 110

tridenticeps 109

tridenticeps 110

trituberculatus 109

Aulacodus 295

Balsameda 345, 352

Babybas 150

auritus 160

idiota 151

nanus 150

oxygenys 151

sublobatus 151

variegafus 150

BoLAX 294

Bolax 182, 261, 295

andicola 295

flaveolus 295

3HH2

420

INDEX.

Page

Bolaxmagmis 295

Bolaxoides 295

BOLBOCEKAS HI, 394

arcuatus HI, 395

modestus 112

saUsei 111,394

serratus HI

BoTHYNtrs 319

monstrosua 320

neglectus 316

obsoletus 316

quadridens 819

simplicitarsis 319

simplicitarsis 320

Bradycinetus 108

serratus Ill

Bybsopolis 290

diiiualiuse 291

lanigera 291

CALLiKHnajs 260

metaUescens 261

Calomacbaspis 264

coQcinna 265

haroldi 265

■ haroldi 264

niyripennis 264

splendens 264

Canthakolethbus 1

Cantharolethrus 382

georgius , . . 1

luxerii 1

Oanthidium 47, 387

Canthidium 50

Canthidium ? 49

? 49

angusticeps 49

ardens 48

ardens 49

ardens, var. mutatum .... 48

aurifex 48

aurifex 49

haroldi 47

haroldi 49

Isetum , 49

lucidwm 47, 49

^puncticoUe 47,387

puncticolle 49

rhodopus 48

rutilum 48

smithi 387

steinheili 47

Oanthon 26, 385

Canthon 35, 36, 42, 385, 386

sequinoctialis 33

amethystinus . . 33, 385, 386

angustatus 28

Page

Canthon ateuchiceps 35

.halteatus 386

cselius 29

ccelius 30

championi 31

chevrolati 33, 386

chevrolati 34

chloris 34

. chlorizans 34

. chlorizans 386

circulatus 32

cyanellus 385

cyanocephalus 28

deyroUei 34

deyrollei 35

euryscelis 28, 385

euryscelis 29

femoralis 28

femoralis 29

forreri 31

gagatinus 33, 385

gagatinus 386

hidalgoensis 32

humectus 386

indigaceus 385, 386

juvencus 30

l^vis 32

lamprimus 29

lampri^nus 30

lituratus 33

moniliatus 27

■ moniliatus 28

mutabilis 34

nitidicollis 28

nyctelius 31

ochropus 28

perplexus 35

politus 31

praticola 32

prohus 31

puncticollis 31

quadriguttatus 29

quadripustulatus 33

raripilus 80

rufulus 27

sallfei 26

semiopacus 28

septem-maculatus 27

sexspilotus 28

speciosus 27, 885

spinosus 27

suhhyalinus 29

transversalis 34, 386

triangularis 27

viridis 30,885

viridis 29, 31, 84

Canthotrupes douei 115

Page

Ceraspis 136

mexicana 187

pilatei 136

I'uftpes 136

Ceratot7-upes fronticornis ...... 112

mniszechi 113

sturmii 112

Cetonia 862

barbata 373

basalis 367

bi-guttata 366

brunnea 373

brunnipes 264

canescens 366

clathrata 377

Children 367, 416

dimidiata 367

ferrugata 367, 416

geminata 373

. inda 373

irregularis 371

Latreille 863

Lesueur 363

. leucographa 364

Uturata 354

lucida 265

montesuma 367, 416

pulchella 367,416

Reich 364

rufina 364

stellata 358

striata 271

submaculosa 369

subtomentosa 373

thelasco 867, 416

tomentosa 373

— — vestita 371

Westermann 363

ynca 377

Cetoniid^ 843

Cetoniin^ 862

Chalcentis 270

Chalepus 311

barbatus. 313

bidentatus 313

hydrophiloides 313

picipes 812

Ohasmatopterid^e 130

Chasmodia 262

brunnipes 264

marginicollis 264

Cheiroplatys 320, 413

climalis 321

clunalis 322

, cultripes 321

. cultripes 320, 322

fairmairei 321

INDEX.

421

Page

Cheiroplatys fairmairei 322

isodonoid.es 322, 413

juvencus 320

Chibiquibia 344

insignis 344

Chibodines 169

zunilensis 169

Chl^nobia 166, 399

Chlcenobia . . , 169

segrota 167

(sgrota 168

sequata 168

bicallosa 168

latipes , 167

rodriguezi 399

scabripyga . 167

tumulosa 168

tumulosa 399

. unituberculata 399

Chlobixanthe 374

flavoviridis 374

Chloeota 268, 408

Chlorota 243, 270

associata 270

(?) belti 270

cincticoUis 269,408

flavicolHs 269

Jlavicollis 270

hamorrhoidalw 269

limhaticollis 269, 270

pallida 270

terminata 269

Ohnaunanthus 130, 396

discolor 130, 396

Ohcebidium 44

Ckceridium 35, 42, 47

seneo-micans 46

ampliatum 45

candezei 46

capistratum 44, 45, 46

chrysopyge 44

guatemalense 45

guatemalense 46

illaesunx 44

illcssum 45, 46

Hugi 45

klugi 46

nitidulum 45

poropyge 46

simplex 46

Chbysina 285, 410

Chrysina. 286, 289, 290

amoena 286, 411

auripes 280

beckeri 411

erubescens 411

Page

Chrysina macropus 286, 410

macropus 286, 287, 411

, var.adolpM .. 286,410

^, var. adolphi 286

-, var. mniszecbi. . 285, 410

, var. modesta 286

mexicana 285

peruviana 285

truquii 289, 290

Clavipalpus 173

Clceottjs 118, 395

-? 125

aphodioides 119, 395

aphodioides 120

aphodioides, var. prionomus

120, 395

bidens 123

bidens 124

excisus 123

excisus 122, 125

globosus '. 119

, var. macleayi 119

, var. sticticus 119

infantulus 121

infantidus 122, 123

metallicus 124

nasutus 124, 396

nitens 125

nitens 124

plicatus 121

plicatus 119

reticularis 120

sejunctus 122

sinuatus 121

, var. sejunctus 121

, var. sejunctus 123

strigilateris 122

viridipennis 124

viridipennis 125

viridis 126

viridulus 125

viridulus 126

Cnemida 272

aterrima 272

intermedia 272

lacerata ' 272, 273

retusa 272,273

Cnemotrupes 115

herheus 114

rufo-clavatus 114

sallei 113

, Yar.falsus 113

saundersii 113

sobrinus 114

viridi-obscurus 113

Gcelocbatus 381

Page
Coelocratus senescens 381

CCELODES ... 107

Ccelodes ................ 108,129

Ocelodes (?) -^ ^? 108

castaneus 108

CcELOsis 326

biloba 326

nicon 326

Coilodes 107

COPEIDJE 26

OopEis ., . 53,387

armatus 54

boucardi 54, 387

colonica .*.... 53

incertus 55

klugi 54

Iseviceps 54

prociduus 54

prociduus 55

quadridens 59

reboucbei 54, 387

sallsei 64

viridis . 30

Coprobius . 26

femoralis 28

Corynoscelis 319

quadridens 319

Cotalea 289

aurescens 289

nigro-senea 289

ursina 289

CoTiNis 345, 414

Cotinis 352, 359

Cotinis— ? 353,414

adspersa 353

alboscripta 352

antonii 352

antonii , 353, 414

atrata 347, 414

aura7itiaca 348

barthelemyi 346

cabira 347

cavifrons 360

cincta 362

cup-ascens 347

erythropus 361

gracilis 353

intergenea 347

laticomis 345

lebasi 350

— — malina 348

mexicana 348, 414

morektii 361

mutabilis 346, 414

mutabilis 345, 348, 349, 350, 351

— - — nitiia 350

422

INDEX.

Page

Cotinis ohliqua 348

olivia 352

palliata 348

pauperula 349

pauperula 350

plicatipennis 351

polita 351

polita 352

producta 350

producta 352

pueblensis 350

pulverulenta 353

punctato-striata 349

punctato-striata 350

robusta 348

rufipennis 414

salicis 414

senex 352

sohrina 346, 347, 348

suhcastanea 347

subviolacea 351

subviolacea 352

terminata 352

viridicyanea 351

Ceemastochilinje 374

Ceemastochilus 375

Cremastochilus 376

crinitus 376

leucostictu^ 374

mexicanus 376

planatus 375

saucius 375

villadce 376

Cyclocephala 299, 413

Cyclocephala 296, 297, 309

Cyclocephala ? 306

? 311

amblyopsis 307

amblyopsis 308

ampliata 311

ampliata 310

atripes 309

brevis 313

castaniella 304

cerea 303

clypeata 296

coahuilae 304

coUaris 299

comata 305

complanata 301, 413

concolor 308

conspicua 309

curta 305

detecta 300

dimidiata 306

elegans 306

Page

Cyclocephala epistomalis 303

fasciolata 301

frontalis 302,304

fulgurata 305

fuliginea 301

fuligiwa 296

gravis 308

gravis 302

guttata 306

humeralis 297, 298

immaculata 304

immaculata 305

ligyrina 309

lucida 307

lucida 308

lunulata 305

lunulata 306

lurida 304

maculata 297

' mafaffa 308

mafaffa 303, 309, 310

manca 297,298

melane 310

melanocephala 306

microspila 301

nfiinuta 306, 307

monochroa 308

mutata 302

Ttmtata 303

nigerrima 310

ocellata 297

ochreata 306

ovulum J . 306

pelioptera 296

'- picta 309

proba 309

sanguinicoUis 302

scarabceina 316, 318

signata 299

signata 300, 302, 303

sororia 303

sororia 304

stictica 300

stictica 301

testacea 307

ustulata 297

variabilis 300

variolosa 309, 310

Cyclocephalin^ 296

d^monoplus 327

mniszechi 328

Deltochilum 35

Deltochilum 37

acropyge 36

amazonicum 37

Page

Deltochilum dentipes 38

furcatum 35

gibbosum 36

gibbosum 37

gibbosum, var. sublaeve . . 36

gibbosum, var. suhlceve .... 37

lobipes 37

mexicannm 37

mexicanum 38

parile 35

parile 36

pretiosum 36

scabriusculum 38

Democrates 290

Desicasta 361

Desicasta 345

hcematopns 360, 361

Isevicostata 361

lobata 361

metallica 360

reicliei 361

sculptilis 361

sebosa 361

thomsoni 360

DiALITHUS 378

magnificus 378

Didrephanophorus 412

DiLOPHOCHILA 261, 408

bolacoides 261, 408

DlPLOTAXIN^ 154

DiPLOTAXis 167, 396

Biplotaxis 165, 156, 166

Diplotaxis 162

? 163

? 163

(?) ? 163

? 164

? 165

? 165

(?) ? 166

(?) ? 396

? 397

? 397

? 399

senea 158, 397

ansa 161

emieipennis 163

alutacea 398

arctifrons 163

atramentaria 163

aurata 898

boops 165

carinifrons 398

clypeata 157

contracta 166

coriacea 161

INDEX.

423

Page

Diplotaxis corrosa 161

, var. pachucana .... 1 61

cribratella 399

cribraticoUis 158

cribraticoUis 156, 159

cribriceps 398

crinigera 161

flavisetis 165

hebes 164, 399

juquilensis 162

laevivertex 397

magna 165

metallescens 164

nigriventris 160

nitidicoUis 160

nitidicoUis 162

parvula 162

pilifera 157, 396

popino 164

poropyge 160

poropyge 161

puherula 162

rujicornis 163

rugosipennis 166

rugosipennis 161

simplex 164

simplex 158, 165

sinuaticeps 162, 397

trapezifera 159, 397

trapezifera 160

trapezifera, var. bicolor . . 169

, var. consentanea 159, 397

, var. denigrata .... 397

, var. denticeps .... 159

Diplotaxys cenea 158

cribraticoUis 158

nitidicoUis 160

rugosipennis 166

simplex 164

Dorcus luxerii 1

mazama 382

Doryphora 234

Dorystethus chlorophana 267

Dynastes 336

elephas 337

bercules 336

hyUus 336

iphiclus 336

Dynasties 296

Dynastin^ 331

Dyscinetus 311

Dyscinetus 313

barbatus 313

bidentatus 313

bidentatus 314

dubius 311, 312

Page

Dyscinetus frater 312

gagates 313

Isevipunctatus 311

leevipunctatus 312, 313

picipes 312

trachypygus 311, 312

Elaphinis 362

Endrosa 185

Enema 328

endymion 329

infundibulum 328

infundibulum 329

luperctts 328, 329

pan 328

pan 329

paniscus 329

Epectinaspis 250, 407

Epectinaspis 216, 252

ambigens 252

chalconota 407

chelifera 251

mexicana 250

mexicana 252

moreletiana 251

moreletiana 252

opacicollis 251

pictipennis 250

Epilissus 35

Epiphanus 17

binominatus 17

Epirhinus 35

Erirhipis 362

candezei 364

geminata 373

inda 373

subguttata 372

submaculosa 369

subtomentosa 373

vestita 871

Euchlora 262

maculata 217

Eucranium 391

EUETHEOI.A 314

humilis 314

EUGASTBA 214, 405

Eugastra 208

Eugastra ? 405

cribrosa 214

cribrosa 405

EupABiA 93, 393

Euparia 92, 94

atramentaria 96, 97

castanea 393

catenulata 97

Page

Euparia cognata 94

tuberculata 94

EuPHOBiA 362, 415

Euphoria 359,363,374

Euphoria ? 369

atra 371

atra 372,373

avita 370

basalis 367

belti 364

biguttata 366, 415

bivittata 365

candezei 364, 415

canescens 366

childreni 416

childrenii 367

cbontalensis 368

clarki 374

dimidiata 367, 416

dimidiata 366

eximia 372

eximia 373

flavoviridis 374

fulgida 372

Mveola 370

geminata 373

geminata 371

histrionica 373

histrionica 374

humilis 372

inda 373

iridescens 368

kerni 374

latreillii 363, 364

leprosa 368

lesueuri 363

lesueuri 364, 415

leucographa 364

leucographa 365

leucopyge 366

leucopyge 367

limatula 365

— -- lineoligera 366, 415

lineoligera 374

lurida 365

monticola 415

morosa 368

mystica 369

mystica 370

nigriventris 371

precaria 368

precaria 369

pulchella 367,416

quadricollis 371

rufina 365

sonorce 374

424

INDEX.

Page

Euphoria steinheili 364

subguttata 372

submaculosa 369

submaculosa 870

subtomentosa 873, 416

subtomentosa 374

texana • • • • 374

ve)'ticalis 362

vestita 371

vestita ........ 370, 872, 373

westermamii 363

westermanni 864

xanthomelas 366

yucateca 365

Euryomia 362, 363

Itlt'BYSTEENUS 89, 387

angustulus 41

claudicans .......... 39, 387

claudicans 40

impressicollis , 41

magnus 40

^ mexicanus 41

mexicanus 40

nebulosus 40

planus . , 40

plebejus 41

velutinus 39

Faula .'...[ L36, 896

Faula ..........'... 137

brunneipennis 1 37

centralis 137

cornuta 136

■ Mspida 137

mexicana 137, 396

pilatei ............ 136, 396

velutina 187

Geniates 296

spinolse 296

Geniatinje 294

Genuchinus 874

Genuchinus 375 376

velutinus 375

v-notatus 375

Geotrogus 214

Geotrupes 112, 395

Geotrupes 114

Geotrupes ? 115

cavicoUis 115

douei 115

falsus. 113

fronticornis 112

fronticornis 113

guatemalensis 114

herbeus ...,,,,,, 114

Page
Geotrupes juvencus 316

laborator ^^^

lateridens 112

mniszechi 113

onitidipes 115

rufo-clavatus 114

sallsei 113

saundersii 113

sobrinus 114

sturmi 112

subarmatus .,..,,....... 112

viridi-obscurus 113, 395

viridi-obscurus 114

GEOTurPiD^ 108

Glaphyrus • . .• • 1^9

Goliathus hoepfmri 343

Golofa 332,413

Golofa 327, 334, 335

atgeon. 884, 835

championi 335

championi . 333, 336

davicornis 338, 884

costaricensis 384

hastatus . 888

imbellis 335

imperialis 334, 413

imperialis 833, 836

incas 334

inermis 835

p>elagon 334

pizarro 383

pizarro 334, 335, 413

porteri 834

saUei 333

Guatemalica 358

bueti 358

marginicollis. 359

Gymnetin^ 348

Gymnetis 858, 415

Gymnetis 358

alboscripta 352

apiata 355

argenteola. 354

atrata 347

balzarica 356

callispila 357

Chevrolat 856

chevrolati 856

chevrolati . . , 357

chontalensis, 356

cincta ...,,.,. 352

cinerea .,,..,.,,.,, 353

cinerea ..,,.., . 354

coturnix , 356

diificilis ,.,..,, 355

kerremansi 357

Page

Gymnetis kerremansi 415

Lebas.. 350

liturata 854

margaritis 855

m,arginicollis 359

marmorea 358

mexicana 846

mutabilis 346

nigi'ina 366

nigrorubra 347

ocellata 354

palliata 348

poecila 358

punctata 368, 354

pyrrhonota 860

radiicollis 357

ramulosa 366, 367

saltei, .,..,... 358

sobrina 848

stellata 358

subviolacea 851

tristis 358

uniformis 354

vandepolli 415

viridicyanea . » 351

wollastoni 415

Gynnis 185

Hadroeerus 173

Hercitis pygmcea 150

Hetebogomphus 327

chevrolati 327

— , var. eurytus 327

-. — hopei 327

hopei 328

mniszechi , , 328

Heteronychus 314

humilis 8] 4

scardbmnus 315

tumulosus 315

Hbteeosteenin^ 286

Heterosternus ......... 287, 412

Heterosiernus 261, 286

buprestoides 288, 412

rodriguezi 288

HopLiA 130, 896

Hoplia 132, 150

Hoplia .P 184

? 134

? 135

albisparsa 185

argyritis ...,..,. 133

argyritis 134

asperula 131

cretacea . . . 182, 896

cretaceq ,.;,,.,......,.. 133

INDEX.

425

Page

Hoplia disparilis 132

festiva 131

festiva 132

guatemalensis 135

inops 133

inops 134

irrorata 131

mexicana 131

nebulosa 135

rotunda. 134

squamifera 134

squamifera 135

subcostata 134

surata 135

teapensis 133

HOPLIIN^ 130

Hoplopus atriplex 248

vetula 248

Hyhoma 35

Hybosohidje 107

Hyhosorus 129

Hydrocharis 311

Inca 377

clathratus 377

fahricii 377

sommeri 377, 378

weberi 377

ynca 377

ISCHNOSCELIS 343, 414

dohrni 343, 414

hopfneri 343

ISCHNOSTOMIN^ 343

ISONYCHUS 147

Isonychus 150

aurantiacus 149

chiriquinus 149

crinitus 148

hirsutus 148

limbatus 149

ocellatus 148

ocellatus 150

ocellatus, var. piperitus . . 148

paradoxus 150

pictus 148

principalis 148

■ tomentosus 149

vittatus 149

Lachnostebna 185, 401

Lachnosterna 167, 174, 177,

178, 179, 181, 185, 192, 202, 208,
. 214, 400, 404

Lacbnosterna ? 199

? 200

. ~ ? 200

Lachnosterna

?

?

P

?

?

?

?

?

?

p

p

. ?

p

?

?

?

p

?

p

p

?

?

P

p

.. P

p

p

P

P

-? 203

204

207

207

207

207

210

210

211

212

212

212

212

213

213

213

213

213

213

213

213

213

213

213

402

402

402

402

402

403

403

403

403

cequalis 214

angulicollis 203

■ anodentata 208, 405

anodentata 209

anomaloides 192

anomaloides 193

baroni 401

brevidens 210

castaniella 186

chiriquina 196

cinnaraomea 197

crenulata 177

cribricollis 189

cribricollis. . 188, 190, 191, 203

crinalis 1 99

crinalis 198

crinipennis 402

crinita 405

cylindrica 214

dasypoda 193

dasypoda 194

dentex 192

divertens 206

BIOL. CENTR.-AMEE., Coleopt., Vol. II. Pt. 2, January 1890

Page

Lachnosterna divertens 207

dulcis 189

euryaspis 204

euryaspis 205

farcta 208, 214

foveicoUis 190

foveicoUis 188

fusca 178, 205

gaumeri 404

gigantea 198

gigantea 200, 202

— — glabricula 210

glahripennis 405

godmani 403

hemilissa 201

beteronycha 186

heteronycha 187, 401

heterophylla 194

hirticula 179

ilicis . , 179

ince7'ta 210

Integra 208

integra .... 199,209,210,405

lanceolata 214

lanuginosa 200

laticeps 213

lehasii 198

lenis 405

leonina 188, 402

leonina 189, 190

lissopyge 201

longipilosa 209

longipilosa 198, 210

longitarsis 184

macropiiylla 193

macrophylla 194

mexicana 212

microdon 211

misteca 209

molopia 205

molopia 206, 207, 208

multipora 211

nigerrima 207

nigerrima 214

ohesa 210

parilis 404

parumpunctata 191

parumpunctata 186

parvisetis 196, 403

parvisefys 197

piceola 187

piceola 188, 401

polypbyUa 194

porodera 211

pubicauda. 188

puncticolKs 191

311

426

INDEX.

Page
Lachnosterna punctulicollis .... 191

ravida 191

ravida 190, 192, 194

rorida 197

rorulenta 196, 403

rorulenta 178, 197, 201,

. V - 210,404

rostripyga 401

rubella 209

rugicoUis 190

rugicoUis 188

rugipennis 201

rugulosa 203

rugulosa 204

scabrifrons 187

schizorhina 202

— — scissa 202

scissa 203, 204, 205

segregans 206

segregans 207

setidorsis 200

setifera 198

setifera 200

setifera, var. menetriesi . . 199

setifera, var. trotschi .... 199

setipennis 206

stipitalis 208

sturmi 197

subme tallica 204, 404

submetallica 205

tenuipilis 202

iestacea 190

testaceipennis 195

testaceipennis 175, 177,

190, 191, 200

trichia 200

tridens 187

tristis 404

xanthe 189

yucateca 404

Lagochile 262

Lagochile 263

brunnipes 264

cbiriquina 263

circumdata 263

coUaris 263

trigona 262, 263

LAMELIilCOBNIA 25

Latemnis 345

antonii 352

Leucothybeus 295

Leucothyreus 182, 296

femoratus 295

LiGYBUS 314

Ligyrus 319

ebenus 318

Page

Ligyrus ehenus 315

fossator 317, 318

fossor 317

gibbosus 316

gyas 315

juvencus 316

IsevicoUis 316

latifovea 315

latifovea 318

morio 316

nasutus 317

nasutus 316

pygidialis 317

relictus 318

ruginasus 316

sallsei 318

sallcei 315

scarahceinus 315, 318

tumulosus 315

tumulosus 316, 318

LlOGENYS 155

Liogenys 154, 156, 163

Liogenys(?) — -? 156

(?) V 156

angustata 168

cribraticollis 166

macropelma 155

morio 155

palpalis 154, 155, 156

pauper ata 158

pilifera 157

pubereus 156

pubereus 157

pubisternis 155

quadridens 155

quadridens 159

quadridentatus 155

LiSSOMELAS 376

flohri 376

LiSTBOCHELUS 169

? 173

cavatus 170

, var. durangoensis . . 170

clavatus 170

culminatus 172

disparilis 171

laportsei 169

laportcei 170

maximiis 172

micros 170

miicoreus 173

oblongulus 173

parilis 172

prsesidii 171

scoparius 173

scuticeps 171

Page

Listrochelus scuticeps 170, 172

Loxopyga 294

LUCANID^ 1

Lycomedes 337

beltianus 338

mniszecbi 337

mniszechi 338

reichei 338

Macraspis 264, 265

chlorophana 267

lucida 265

rufonitida 266

splendens 264

MACBODACTYLINiE 136

Macbodactylus 138, 396

Macrodactylus 147

Macrodactylus ? 147

angustatus 139

championi 146

cinereus 139

costulatus 143

costulatus 1 44, 145

dimidiatus 146

felix 146

fulvescens 140

fulvescens 142

fulvescens, var, nigritarsis . 141

impressicollis 143

impressus 143

infuscatus 139

infu,scatus 140, 141

lineatocoUis 140

-«- — lineatus 143

longicollis 145

longicollis 146

mexicanus 139

mexicanus.. 188,140,141,142

murinus 147

, var, subviridis .... 147

nigripes 140

nigrocyaneus 145

ocreatus 141

ovaticollis 146

plumbeicollis 143

rhomboderus 141

rufescens 145, 396

rufipennis 143, 145

semicceruleus 146

sericeicollis 142

sericeicollis 143

sericinus 144

silaonus 140

suavis 144

submarginatus 142

submarginatus l43

INDEX.

427

Page
Macrodactylus subsptnosm .... 140,

141, 142

sylphis 144

thoracicus 146

imiformis 138

uniformis 139, 140, 141

variipes 138

variipes 139, 145

vicinus 139

virens 147

zunilensis 142

Macronota radiata 358

Macropnus 286, 287

crassipes 287

mniszechi 287

Macbopoides 286, 411

Macropoides 261, 287, 288

Macropoides (?) ? 287

crassipes 287

mniszeclii 287, 411

nietoi 287, 411

Me&aceeas 325

morpheus 326

philoetetes 325

philoetetes 326

philoetetes, v. septentrionis 325

Megalosoma 336

elephas 337

Megasoma 336

elephas 337

Megathopa 25

Megathopa 26

candezei 26

yucateca 25

Melasictes 359, 360

Melolontha angustata 140

aphodioides 119

harbata 313

binotata 229

cincta 253

decemlineata 215

glabrata 253

immaculata 304

Integra 208

loiiigicollis 145

marginata 253

petitii 215

quadridens 155

ridens 253

signata 299

varians 217

Melolonthid^ 130

Melolonthin^ 214

Metapachylus 412

sulcatus 412

Microcrania 150

Page

Mixigenus 331, 332

barbicornis 332

leander 332

Moscheuma 361

Icevicostatum 361

Neleides 15

punctulatus 15

Neleus 14, 384

Nelem 18

interstitialis 15, 384

punctiger 14

tlascala 14, 384

Ninus 14

interstitialis 14, 15

OCHODJETJS , . . 105, 394

? 107

? 107

? 394

? 394

luridus 106, 394

musculus 106, 107

poUicaris 107

prsesidii 106

rugatus 107

setulosus 106

simplex 106

ulkei 106

OiLEUS 6

Oileus 10

expositus 12

guatemalensis . 16

heros 6

klingelJidffe)-i 11

Ometis 262

hrunnipes 264

Omorgus asper 116

punctatus 117

scutellaris 116

tesselatus , 116

Oniticellus 82, 391

californicus 391

monstrosus 83, 391

rhinocerulus 391

Onthebus 50

azteca 50

brevipennis 51

didymus 50

mexicanus 50

mexicanus 51

quadratus 50

sulcator 50

Onthophagtjs 66, 389

Onthophagus 75

Onthophagus ? 82

Page

Onthophagus ? 82

? 82

acuminatus 68

anthracinus 77

anthracinus 76

aureo-fusciis 81

belorhinus 69

belorhinus 71

caneUinus 70

championi 74

chevrolati 80, 390

chevrolati 81, 82, 391

chevrolati, var. omiltemius 390

chryses 76

chryses 78

clypeatus 69

corrosus 78

corrosus 79

coscineus 79

crinitus 68, 389

, var. panamensis .... 68

cuhoidalis 79

curvicornia 66

curvicornis 67, 74

cyanellus 81

cyclographus 79

diabolicus 73

dicranius 72

euluphus 74

gazella 78

gazellinus 78

guatemalensis 73, 390

guatemalensis 74

hcematopus 68

hippopotamus 80

hopfneri 76

igualensis 77

incensus 66

incensus 67, 68

inflaticollis 390

iodiellus 73

landolti 75, 390

landolti 77, 78, 82

latebrosus 72, 74

lecontei 73

lecontei 74

longimanus 76

marginicollis 67

mexicanus 72

mexicanus 73, 74

mirabilis 74

nasicornis 72

nitidior 67, 389

nitidior 82

nitidus 67

nyctopus 68

3112

428

INDEX.

Page

Onthophagus orphuoides 75

posticus 76

prsBcellens 70

retusus 80

retusus 81

rhinoloplius 69, 389

rhinoloplius .... 70, 71, 72, 75

rhinophyllus 69

rostratus 71

rufescens 78

semiopacus 80

sharpi 71

tapirus 71

totonicapamus 80

totonicapamus 81, 390

undulans 390

viridicatus 30

xanthomerus 69

Orizubus 320

cultripes 320, 321

isodonoides 322

ligyroides 321

marginatus 321

sallei 321, 322

snowii 321

Obphnid^ 105

Orphnus 75

Oryctin^ 322

Ort/ctomorphus 412

OXY&ES 7

laevior 7

Isevissimus 7

Oxyomus gracilis 99

Pachylus 412

Pachystethus 245

viduus 247

Pantodinus 377

klugi 377

Pabachrysina 289

truquii 290

Parastasia 270, 286, 412

Parisolea 288, 412

alba 288,412

— fulva 288

yiilva 412

Passalid^ 2

Passalus 21, 385

Passalus 4, 17, 19, 23

acuminatus 15

— — agnoscendiis . 13

angidatus 17

astecus 10

bicornis 11

binominatus 17

hrevis 4

Page

Passalus ccelatus 16

cognatus 16

contractus 16

cornutus 21

cornutus 22

corticicola 24

cuspidatus 22

distinetus 21

eclipticus 20

erosus 17

goryi 3, 4

haagii 19

heros 6

heydenii 22

hirtus 4

incisus 18

inops 16

interstitialis 15

laticornis 8

leachii . . . , 14

longulus 16

maillei 15

mexicanus 5, 8

7norio . 16

occipitalis 17

opacipennis 4

platyrhinus 22

— — - p)unctat()-striatus 16

recticornis 20

rimator 10

Sagittarius 10

striato-punctatus .... 22, 385

thoracicus 17

tlascala 14

tropicus 19

validus 22

wagneri 19

zodiacus 21

zodiacus , 22

Paxillus 14

leachi 14

Pectinicornia 1

Pehdnota 273, 408

Pelidnota 275, 278, 279, 286,287, 288

Pelidnota ? 275

adelaida 283

ceruginosa 286

amosna 286

— — auripes 281

belti 273

clirysargyrea 279

costaricensis 274

, var. guatemalensis . . 274

cupritarsis 275

cylindrica 409

Iceta 281

Page

Pelidnota laniventris 283

latipennis 283

lucida 275

notata 273, 408

notata 274

oi'natissima 283

polita 275

prolixa 273

psittacina 281

punctata 273, 274

punctulata 276, 408

strigosa 276

, var. alutacea 276

terminata 269

— — ■ victorina 277

virescens 274, 408

virescens 275

virescens, var. aurescens . . 274

virescens, var. aurescens . . 275

virescens, var. chalcopus. . 275

, var. jalapensis .... 275

Pentodontin^ 314

Peperonota 412

Phalangogonia 291

championi 293

lacordairei 292

lacordairei 293

obesa 291

obesa 292

parilis 293

sperata 292

stipes 292

Phan^us 65, 387

adonis 61

amethystinus 59

amethystinus 60

aiuithaon 65

amithaon 64

auricollis 57

beltianus 63

beltianus 388

bitias 56

chalcomelas 60

chryseicollis 56

chryseicollis 57, 58

corythus 55

corythus 56

damocles 59

damon 66, 389

damon 66

daphnis 61, 388

daphnis (>2

daphnis, var. cseruleus . . 61

, var. herbeus 61

dardanus 56

divisus 64

INDEX.

429

Page

Phanaeus endymion 58

excelsus 389

eximius , . 62, 388

furiosus 61

guatemalensis 59

hermes 60

jasius 56

melampus 59

melampus 60

mexicanus 64

mexicanus 65

mimaeformis 387

mirabilis 65

m,ij'abilis 389

nimrod 62

noctis 56

noctis 58

obliquans 389

palliatus 62

palliatus 388

pegasus 65

pilatei 65, 388

pluto o6, 387

pjrois 58

quadridens 59

— — quadridens 62, 388

sallsei 63

sallcei , . 64

scintillans 64

scutifer 60, 388

telatnon 55, o6

tepanensis 388

tridens 61

velutinus 57

— — velutinus 58

violaeeus 59

wagneri 63

wagneri 64, 65

Phelotrupes 114

Phileubin^ 338

Phileurtjs 338

Phileurus 339, 342

Phileurus ? 339

affinis 341

bajulus 341, 342

castaneus .341

cephalotes 342

cribrosus 338

cylindroides 340

dejeani .340

depressus 339, 340

didymus 341

Jimbriattis 339

Isevicauda 3.'}9

microps 341

qiiadrituberculatus 342

Page
Phileurus quadrituhei'culatus . . 340

simplex 339

subcostatus 338

truncatus 340

valgus 341

valgus 340, 342

valgus, var. capra 341

valgus, var. capra 342

variolosus 340

vervex 339

Philochl(snia 152, 157

ceruginosa 153

chalcea 152

clypeata 157

micans 153

Phoboneus 18

jansoni 18

Phyllopertha 216

Phyllopertha 246, 250

horticola 216, 235, 252

niexicana 250

moreletiana 251

tolucana 216

villosella 246

Phytalus 174, 400

Phytalus. . . . 167, 169, 176, 177, 185

Phytalus (?) ? 177

? 181

? 185

83grotus 182

cegrotus 183, 184

ambigenus 1 76

batillifer 180

bolacoides 182, 40 J

■ — ■ — bucephalus 182

bucephalus 183, 184

ciudadensis 183

coraetes 177, 400

fissilabris 184

fssikibris 400, 401

bogei 180

Icevigatus 175

lineatus 183

macrocerus 179

nubipeniiis 176

obsoletus 175

obsoletus 174, 178, 192

omiltemius 400

pentaphyllus 180

platyrhinus 179

poculifer 184

poculifei- 212

prolixus 178

pruinosus 177

pruinosus . . 196, 197, 209, 210

(?) pubicollis 176, 400

Page
Phytalus pubicollis .. 174,177,178

punctuliceps 175

seniculus 181

stramineus 183

tricbodes 178

xantbocomus 181

PiNOTUS 51

agenor 52

amplicollis 52

bituberculatus 53

carolinus 52

carolinus 5,3

centralis 52

colonicus 53

colonicus 52

eremita 5,3

foveicollis 52

inachus 51

Sagittarius 52

satanas .52

yucatanus 51

Plagiodera eeneiventris 235

Platyc(elia 293

bumeralis 293

nervosa 294

Platybutela 262

cribrata 262

Platyvebres 9 383

Platyverres 23

intermedius 9^ 38.3-

Plectris 152

truquii 290

Plttsiotina 276

Plusiotis 276, 409

Plusiotis 279, 284, 285, 410

adelaida 283, 409

alticola 4()t)

alticola 410

amalia 281

anomala 284

argenteola 277

auripes 280

auripes 281

aurora 277

aurora 278

aurora, var. chrysopedila . . 277

aurora, var. chrysopedila. . 278

badeni 280

batesi 279

boucardi 277

chalcothea 284

chloreis . . . 282

— — cbrysargyrea 279

costata 281

costata 282, 409

lacordairei 280 409

430

INDEX.

Page

Plusiotis lacordairei 283

Iceta 277

laniventris 283,409

laniventris 282

lecontei 283

lecontei 409, 410

marginata 278

> mniszechi 284

optima 279

orizabse 410

prasina 282, 409

psittacina 281

psittacina 277, 282

resplendens 278

resplendens 277, 279

rodriguezi 283, 409

sallsei 280

victorina 277

woodi 284

Podalyus cotnplanus 319

fossor 317

Juvencus 316

nasuf.us 317

variolosus 316

PODISCHNUS 331

Podischnus 327, 332

agenor 331

agenor 332

tersander 332

Polymcechus 412

POLYPHYI>LA 214

cavifrons 215

conspersa 215

decem-lineata 215

hammondi 215

leucogramma 215

petiti 215

subvittata 215

PopiLiTJs 11, 383

Popilius 19, 21

debilis 12

debilis 13

expositus 12

granulifrons 12, 383

klingelhoferi 11

mysticus 11

purulensis 13

Popillia castor 256

pollux 256

semirvfa 247

sticticollis 247

vidua 247

Procttlejtjs 4, 383

Proculejus 5, 6, 7, 8, 9

• brevis 4

hrems 5, 6, 383

Page
Proculejus championi 5

championi 6, 383

hirtus 4

Icevissimus 7

nudicostis 383

pubicostis 5

quitensis 6

sartorii 5

truquii 5

Pboculus 3, 383

Procidus. . , 4

goryi 3, 383

mniszecbi 4

mniszechi 3

opacipennis 4

opacipennis 3

PnosoCLiTtrs 7

obesus 7

Psammobius 102

PSAMMODIUS 102

Psammodius 104

ccelatus 103

culminatus 103

integer 104

micros 103

micros . . . 104

parvulus 104

quinque-plicatus 103

sahulosus 104

versecrucis 103

Pseud ACANTHUS 8

astecus 10

aztecus 8, 10

(?) jalapensis 9

(?) laticornis 8

laticornis 9

mexicanus 8

PSEUDOCANTHON 35, 386

cblorizans 386

perplexus 35

perplexus 386

PSEUDOLUCANUS 382

mazama 382

PSEUDOSEHICA 152

aeruginosa 163

amazonica 153, 154

jiavohirta 154

integrata 154

longitarsis 154

marmorea 152

micans 153

setisparsa 153

setisparsa 154

Psilocnemis 375

leucosticlus 374

Ptenomela 267

Page

Ptenomela 279

gratiosa 268

Ptichopus 17, 384

angulatus 17, 384

Pyronata 243

Rhizotbogin^ 166

Phizotrogus 180

Rhodocanthopus 15, 384

cselatus 16

curtus 17

guatemalensis 16

inops 16

maillei 15, 384

maillei 16

morio 16

punctatostriatus 16

spiniger 15

Rhyssemus 102

Rhyssemus 103

cristatellus 102

RiMOB 10, 383

Sagittarius 10, 383

sargi 10

RUTELA 271

Putela 260, 270

sanguinolenta 271

specularis 271

striata 271

viridiaurata 272

Rutelid^ 216

rutelina 270

RUTELIN^. 261

Rlttelisca 270, 408

Rutelisca 286, 412

iiohri 270, 408

Sapbosites 92, 393

aspericeps 93

cancellatvs 92, 93

corticalis 93

cossonoides 93

parallelus 93, 393

sidcatus 92

Scaptophilus 319

Scarab(eus ceneas 328

agenor 331, 332

alcides 336

antillarum 316

barbatus 313

barbicornis 331, 332

hilobus 326

carolinus 52

coi'datus 318

didymiis 341

ebenus 316, 318

INDEX.

431

Page

Scarahceus elephas 337

enema 328

fossor 317

ffibboms 36, 316

hercules 336

indus 373

jamaicensis 323

laborator 313

l(evis 32

laniger 291

latipes 119

lividtis 85

macropus 285

pan 328

persetis 336

phihctetes 325

quadrispinosus 328

quadritubercidatus 342

satyrus 322, 323

scaher 336

titornus 328

truncatus 340

— — valgus 341

volvens 32

SCATIMUS 43

ovatus 44

patruelis 44

Scatonomus 50

Schizonycha 190, 191, 202

puncticollis 185

Semanoptertis 338

Serica . . 135, 136

holosericea 136

Sebicin^ 135

Sbrtorius 23

as-assizi 23

Sisyphus 39

longipes 39

mexicanus 39

SoRANUS 19, 384

Soranus 11, 21, 385

championi 20

depressifrons 384

eclipticus 20

eclipticus 21

haagi 19

(?) intergeneus 21

recticornis 20

recticornis 19, 21, 384

tropicus 19

tropicus 20

wagneri 19

yucatanus 20

Sphf^romorphus 118, 126

humeralis 126

Spilota 241,243

Page

Spilota lepida 244

Spodochlamys 294

ceesarea 294

cupreola 294

Spurius 11

bicornis 11

Stenocrates 313

Stenocrates 314

holomelcena 314

laborator 313

Stbphanocephalus 13

stellaris 13

Stephanucha 362

bispinis 362

Stethodesma 361

hcematopiis 360

Strategus 329

aloeus 330, 331

antmus 329

cessus 330

jugurtha 330

julianus , 330

julianus 331

Strigoderma 252, 407

Strigoderma 250, 259, 260

angulata 257

auriventris 260

castor 256

castor 257,258

colombica 258

contracta 255

costulipennis 260

festiva 257

festiva 256

glabrata 253

intermedia 253

intermedia 254

lampra 259

longicollis 255

marginata 253

marginata 254

marginicollis 257

mexicana 253

mexicana 250, 254

nigripennis 267

nigrita 254

orbicularis 257

orbicularis 256

physopleura 256

pollux 256

presidii 407

protea 254

protea 253

pygmcea 253, 254

rutelina 258

saUsei 255, 407

Page

Strigoderma sulcipennis 259

teapensis 258, 407

tomentosa 268

vestita 254

vestita 255

Telaugis 262

Theogenes 336

Thyriditjm 268

Thyridium . 279

semicinctum 268

Tiarocera 344

Tomarus 314

Tostegoptera 214

cribrosa 214

Tri^nurgus 8

subopacus 8

Trichestes 185

crinita 405

cylindrica 214

Trichiid^ 377

Trichius sp 381

deltoides 378

fasciatus 381

Tbigonopeltastes 378

archimedes 378

archimedes 379

carus 381

deltoides 378

deltoides 380

elongatulus 380

geometricus . . . , 379

geometricus 380, 381

geometricus, v. intermedius 380

— , V. nigrinus 379

linea 381

quadriguttatus 381

quadrisignatus 381

salltei 380

, var. frontalis 380

simplex 379

trianguluni 379

Trioplus 342

Trogid^ 116

Trox 116, 395

? 395

acantbinus 117

alternans 117

alternatus 117

asper 116

crenatus 117

globosus 119

lecontei 117

monachus 116

nobilis 117

punctatus 116, 395

432

INDEX.

Page

Trox scutellaris 116

sonorsB , 117

splendidus 120

suberosus 117, 395

terrestris 395

tessellatus 116

Truqxtius 10

aztecus 10

UXDULIFER 18, 384

— — incisus 18, 884

Uboxys 43

Uroxys 42

aphodioides 43

elongatus 43

micros 43

pygmceus . , 43

Page
Uroxys rodriguezi 43

Verres 23, 385

Verves 9

cavicoUis 24

corticicola 24, 385

furcilabris 24

hageni 24

intermedins 9, 23

Veturius 22

Veturius 23, 384, 385

cirratus 23

heydeni 22

platyrhinus 22

platyrhinus 23

ViNPEX 13

Page

Vindex agnoscendus 13

sculptilis 13

Xyloryctes 322

corniger 324

f urcatus 324

f urcatus 323, 325

lobicoUis , 323

satyrus 322

satyrus 323, 324

telephus 323

telephus 324, 325

telephus, var. ensifer .... 324

teuthras 324

teuthras 325

theatalus 325

PRINTED BY TAYLOR AND FRANCIS, RED LION COVRT, FLEET STREET.

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