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Coiitrilbiitions to tlie Descriptire and Systematic
Coleopterology of North America.

PART I.

By Tiios. L. Casey, Lieut, of Eng'rs, U. S. A.

The following essay is given to the public, with the view of con-
tributing another mite to the written descriptions of our American
fauna, as well as of rendering it possible to identify for coiTespondents
many distinct species, at present scattered unnamed through our type
collections. Many of them belong to genera, to the apparent confu-
sion of which, it may be regretted by many that any addition has
been made, and in these cases I have made the descriptions as full
and exact as it lay in my power. If they ever serve to identify the
species, they may be considered to have done their duty.

These remarks apply particularly to the genus Harpalus, in which
the green metallic species are separated by the number and arrange-
ment of the setigerous punctures on the epistoma. Whether these
species are valid or not, time and experience can alone demonstrate,
but it must be affirmed here as a conviction that much of the trouble,
confusion, and consequent neglect of the species in this genus, is the
result of a careless study and separation of them, and that there is
much less variation in the individuals of species, which have been
thoroughly investigated and minutely defined, than is commonly
supposed.

This is certainly the cause of the trouble in the case of H. viri-
diceneus, which will be seen later to have been made up, in most
cabinets, of individuals belonging to five distinctly characterized
species. Knowing these species to be distinct, it is very easy after-
wards to see many differences, which were overlooked while they
remained mixed up in confusion ; and this, for a reason analogous to
that which renders it much easier for an astronomer to detect a faint
star or satellite of a planet, when once it has been discovered, and its
Published August, 1884. 1

0' .-

% COLLECTION

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\'''" -^ ^V COLLECTIQ^J

THOS. L. CASEY.

exact position pointetl out ; or, in other words, when he is told where
to look for it. These differences relate more particularly to the shape
and relative size of the head, pronotum, and elytra, as well as to
minor characters of the under surface.
Philadelphia, Jcxe 23, 1884.

PTEROSTICHrS.

P. zepliyrus n. sp. — Form rather slender. Upper surface piceous-
black, elytra somewhat paler, iiuder surface dark fuscous, legs same, poste-
rior edges of the ventral segments very pale testaceous. Head moderate, as
long as width across the eyes ; epistoma broadly, evenly, aud feebly eraargi-
iiate anteriorly ; labrum slightly more than twice as wide as long, almost
transversely truncate anteriorly, angles acute ; eyes flat, oval, nearly entirely
visible from above, very near the posterior angles ; posterior supra-orbital seta
slightly behind the eye ; antennae as long as the head and prothorax together,
dark rnfo-testaceous, paler toward tip, second joint scarcely one-half as long
as the third ; mentum tooth rather small, deeply and triangularly incised at
tip, and deeply excavated on the exposed surface ; third joint of labial palpi
slightly shorter than the second ; between the gular sutures there is a short,
narrow, regularly impressed line. Prothorax as broad as long, rather
strongly constricted behind ; disk strongly depressed ; median line distinctly
visible throughout, lateral basal depressions very well marked ; surface
highly polished throughout ; sides strongly arcuate anteriorly and sinuate
posteriorly ; anterior angles somewhat acute, posterior acute and projecting;
base broadly and somewhat angularly emargiuate. Scutellum small and
triangular. Elytra at base as wide as the prothorax, very slightly more
than twice as long as the latter, widest at two-thirds the length posteriorly ;
sides rather strongly arcuate ; disk moderately convex, striae deeply im-
pressed, interspaces rather strongly convex. Last ventral segment strongly
carinated in the middle toward the apex. Anterior tibiae rufous toward the
tip. Length 12.0 mm.

The exact locality of this species is not known ; the single repre-
sentative, which is in my cabinet, is a male, and was probably col-
lected in the extreme Southwest.

The very marked and narrow cariniform elevation of the last
ventral segment renders it easily recognizable.

P. oscillaiis n. sp. — Form slender. Surface above black, beneath deep
piceous-bhick, legs slightly paler toward the tips of the tarsi. Head moderate,
longer than width across the eyes ; labrum slightly more than twice as wide
as long, sides nearly straight, broadly and very feebly emargiuate anteriorly',
angles slightly rounded ; eyes situated very near the posterior angles, rather
convex ; posterior supra-orbital seta on a line with the posterior edge of the
eye ; antennae as long as the head and prothorax together, dark fuscous,
paler toward the tip, pubescence fulvo-testaceous, second joint more than

C 33. ■

f . -2.

NOETn AMERICAN COLEOPTERA. 3

one-half as long as tlie third ; emargiiiation of nientum broadly trapezoidal,
tooth rather small, much broader than long, equilatero-triaugularly incised
at apex, and broadly excavated on the exposed surface ; longitudinal line
between the gular sutures deeply impressed ; mandibles black throughout,
tips acute. Prothorax slightly narrower tlian long ; disk rather convex,
median line deeply impressed and terminating at short distances from the
base and apex ; lateral basal lines broadly and deeply impressed ; apex
almost transverse, base very broadly and feebly emarginate ; sides feebly
convergent behind, nearly evenly arcuate ; anterior and posterior angles
sub-equally and evenly rounded. Scutellum small and acutely triangular.
Elytra at base slightly wider than the prothorax, widest at mid-section,
nearly two and one-half times as long as the pronotum ; together rather
acutely rounded behind; sides evenly and rather strongly arcuate; disk
moderately convex, striae deeply impressed, interspaces convex. Legs long
and slender. Posterior edges of the ventral segments somewhat paler ; the
tip of the last segment is broadly and deeply impressed in the male. Length
11.0-12.5 mm.

The two specimens of this species, a male and a female, which are
before me, are from the same lot as the preceding species, and are
probably natives of the same region, or the Northern part of Mexico.

Instead of one posterior supra-orbital seta, which is the condition
in the male, the female has, abnormally, three setae very closely
approximate, and in the same longitudinal line. The deep, trans-
verse, and somewhat rectangular impression at the tip of the last
ventral segment in the male is very distinct.

AIHARA.

A. apaclieiisis n. sp. — Form rather slender, oval. Head moderate,
distinctly broader across the eyes than long ; surface convex and highly
polished ; eyes small, very convex, and prominent ; epistoma deeply and
transversely impressed just behind the anterior emargiuatiou ; labrum one-
half as wide again as long, broadly and feebly emarginate anteriorly, sides
nearly straight and moderately convergent ; antennae nearly equal in length
to the head and prothorax together, seta of first joint very long and thick ;
last joint of maxillary palpi one-half longer than the penultimate, rather
slender, acuminate, compressed toward the tip, deeply and longitudinally
excavated posteriorly ; mentum tooth strong, broader than long, bifid, incisure
in the form of an equilateral triangle, tips rounded, dental setae very long ; a
seta in the middle of each end of the sub-mentum is also very well developed.
Prothorax three-fourths as wide again as long, apex slightly shorter than
the base, and very feebly emarginate ; sides almost evenly and rather feebly
arcuate ; disk moderately convex, highly polished, median line distinct,
terminating at equal and very short distances from the base and apex ; basal
punctures very feeble, coarse, variform, and irregularly distributed in a
narrow transverse area along the base ; there are also at the base two
rounded impressions on each side of the median line and at equal distances

4 THOS. L. CASEY.

from tlie posterior margin. Elytra at base as wide as the prothorax ; sides
very feebly arcuate ; together rather acutely rounded behind ; disk very
convex, highly polished, striae very feeble, interspaces flat ; suture twice as
long as the head and prothorax together. Last abdominal segment having
two short, closely approximate setae on each side near the apex. Color of
body throughout dark castaneous, legs and oral organs paler.
Length, G.7 mm. Male.

Arizona (Morrison).

This species appears to be very distinct, and is much smaller and
more slender, as well as more convex than either californica or
remotestriata. The striae of the elytra are scarcely visible except
with a good lens, and are indistinctly punctulate ; the first joint of
the posterior tarsi is very slightly longer than the last.

A. marylandica n. sp. — Form rather broadly elliptical, sides very
feebly arcuate. Head moderate, broader than long ; eyes small ; sides nearly
parallel and feebly arcuate behind the eyes, very rapidly convergent before ;
surface moderately convex and shining ; supra-orbital setae rather approxi-
mate and symmetrically placed in reference to the longitudinal limits of the
eye ; antennae short, not as long as the width of prothorax, first three joints
rufous, remainder dark castaneous ; emargination of meutum trapezoidal,
tooth very short and broad, distinctly sinuate anteriorly, dental setae very
close and long, at each extremity of the gular support of the mentum thei'e
are two closely approximate and rather long setae ; oral organs pale testace-
ous ; maxillary palpi very stout, castaneous. Prothorax one-third longer
than the head, distinctly broader behind ; apex broadly and feebly emargi-
iiate, base transverse ; basal angles acute ; disk polished, median line feeble ;
border narrow, broken for a short distance in the middle of the base ; near
each basal angle, there is a small, impressed, punctiform pit ; between this
and the median line a small, irregular, dejiressed area, which is very sparingly
punctate; just within the raised lateral margin, there is a succession of very
fine punctures. Elytra at base as wide as the pronotum ; sides nearly
parallel, very feebly arcuate ; together nearly one-half longer than wide,
rather acutely rounded behind ; disk polished, extremely finely reticulated,
distinctly striate, striae strongly punctate, interspaces nearly flat, just
exterior to the eighth stria there is a row of very distinct punctures near the
humeri, and a much longer one near the tips, tfcutellum much broader than
long, acute behind, sides arcuate. Last abdominal segment bearing on each
side near the apex two long stout setae. Terminal spurs of anterior tibiae
very strongly developed. Color of body dark piceous-black, having on the
upper surface an aeneous metallic lustre ; legs dark rufo-testaceous. Length
7.8 mm. % .

Maryland, banks of the Potomac Kiver, below AVashington ; one
specimen.

This species is remarkable for its very short i)ronotum, tliat of the
type being only 1.8 mm. in length, while the elytra are 4. 'J mm., and

NORTH AMERICAN COLEOPTERA. O

it is nearly two-thirds wider than long. The sides of the protliorax
are more convex anteriorly than posteriorly, where they are nearly
parallel and straight.

A. pallida n. sp. — Form broadly oval, sides parallel. Head small,
sub-triangular ; eyes small, convex, and salient ; surface convex and highly
polished ; labrnm prominent, feebly and narrowly sinuate anteriorly, surface
minutely reticulated ; antennae very slender, coarsely setose, as long as the
base of the pronotum ; mentum tooth narrower than long, feebly bifid at the
tip, prominent ; mandibles very finely acuminate at tip, toward which they
are blackish in color. Protliorax at apex as wide as the head, scarcely one-
third wider than long, more than one-third wider at base than at apex ; sides
feebly arcuate, slightly more so anteriorly than posteriorly ; disk very con-
vex, median line very fine and distinct, the two basal impressions at each
side are rather feeble, irregularly and coarsely puctured, punctures deeply
impressed and isolated ; surface highly polished. Scutellum transverse,
triangular, sides straight. Elytra at base as wide as the pronotum ; sides
parallel and very feebly arcuate ; disk very convex, one-half longer than
wide, and one-third longer than the head and protliorax together ; striae
deep, punctate, interspaces very convex and highly polished ; elytra together
broadly rounded behind ; there is a row of setae near the humeral angles
and a continuation of the same, beginning at a distance fi'om those angles
equal to two-thirds the entire elytral length. Legs moderate, fourth joint
of anterior tarsi very small, not more than one-half as long as the third.
Extremity of last ventral segment bearing one seta on each side near the
immediate vertex. The color of the entire insect is a pale piceo-testaceous,
becoming rather rufo-testaceous toward the front ; femora still paler. Length
5.3 mm., breadth 2.5 mm. % .

Willets Point, New York Harbor ; one specimen.

The type of" this species has the liead strongly deflexed. Tiie very
pale color may be due to immaturity; the eyes and portions of the
mandibles are, however, deeply colored. The species is of a much
broader and more convex form than any other which can be con-
sidered nearly related to it, and the elytra are proportionally much
shorter.

A. feri'Ugiliea n. sp. — Form moderately robust, sides nearly parallel.
Color of entire body rather dark reddish-ferruginous. Head small, slightly
wider across the eyes than long ; eyes small. Protliorax at base twice as
wide as the head, and one-third wider than long ; base much longer than
the apex, both nearly transverse and straight ; sides almost evenly convex,
border narrow, beginning slightly behind the anterior angles and continuing
with the same width along the base for a short distance, where it becomes
interrupted and lost ; median line distinct and attaining the base ; disk
moderately convex, highly polished, without any traces of punctuation at
the base, near the basal angles there is a small, round, deeply impressed,
punctiform pit. Scutellum strongly transverse, short, triangular, sides

6 TIIOS. L. CASEY.

straight. Elytra at base as wide as the prouotum ; sides parallel and very
feebly convex ; together broadly and abruptly rounded behind, scarcely one-
half as long again as wide ; disk convex, highly polished, striae strong,
punctured, interspaces strongly convex. Last ventral segment bearing but
one seta on each side near the immediate vertex. Mesosternum very broad
between the coxae, wliere it is emarginate behind, emargination as wide as
the lateral lobes, ver^' deep, broadly rounded at the bottom. Under surface
of anterior tarsi having two series of long, cinereous, extremely dense pubes-
cence. The gula is very convex longitudinally. Length 6.5 mm. % .

Atlantic City, New Jersey ; one specimen.

The type is greatly damaged about the head, the oral organs being
entirely wanting; there is enough remaining, however, to show that
the species is evidently distinct ; it bears a somewhat remote resem-
blance to A. ruhrica, but in that species the pronotum is distinctly
punctate at the base. The very dense pubescence on the under sur-
face of the anterior tarsi reminds us in a manner of Anisodactylus,
although in that genus there is not a medial division or gap.

ANISODACTYLUS.

A. arizoiiae n. sp. — Form nearly as in cali/ornicus. Upper surface deep
blue-black, under surface dark fuscous, femora black, tibiae very slightly
paler, tarsi fuscous. Head large, slightly longer than width across the eyes ;
eyes small, rather feebly convex ; labrum not twice as wide as long, feebly
and narrowly sinuate anteriorly, angles broadly rounded ; antennae equal
in length to width of prothorax, robust, dark castaueous ; emargination of
mentum parabolic, tooth in the form of a short, wide, and acute cusp, dental
setae very closely approximate ; mandibles long, strongly arcuate at tip,
acute, piceous-black. Prothorax distinctly longer than the head, one-third
wider than long ; disk moderately and evenly convex, highly polished
throughout without any trace of punctuation ; median line almost oblite-
rated, lateral impressions somewhat stronger ; sides feebly convergent
behind, strongly arcuate anteriorly, feebly sinuate posteriorly ; anterior
angles narrowly rounded, posterior acute and very slightly produced ; sur-
face having a deep, purplish-blue reflection. Scutellum small and acutely
triangular. Elytra at base very slightly wider than the prothorax, two and
two-thirds times as long as the latter ; sides nearly parallel and rather feebly
arcuate ; disk moderately convex, widest at mid-section, striae impressed
and distinct, interspaces very feebly convex and highly polished. Second
and third joints of the anterior tarsi much broader than the first : first,
second, and tliird joints of the posterior tarsi decreasing uniformly and
rather rapidly in length, first not as long as the next two together. Length
13.5 mm.

Arizona ; one specimen, male.

This very fine species is one of the largest of the genua within our
territory; it somewhat resembles caUfornicus in form, but differs from

NORTH AMERICAN COLEOPTERA. 7

that species in many important characters, among others in the dental
setae of the mentum, which are very long, approximate, and close to
the tooth in this species, while in californicus they are distant from
the bottom of the emargination and are widely separated. The pro-
thorax in the present species is perfectly smooth and not punctate as
in the other ; the surface of the elytra also, in arizonce, is highly
polished, while in californicus it is rendered opaque by a minute and
regular system of granulation.

I have before me another male, which must be referred to this
species; the prothorax, although not punctate, is transversely creased,
as though it had been crumpled while in a plastic state ; the right
side of the pronotum is deformed, and as tliere are certain other
evidences pointing to its probably abnormal character, I will not
describe it ; the posterior angles of the prothorax are narrowly
rounded and not produced.

AMERI^US n. gen.

This genus is founded upon Dr. LeConte's Bradyeellus linearis, a
small elongated insect of very singular form. The principal characters
are as follows : —

Emargination of mentum very small, tooth very long and slender, pro-
jecting anteriorly slightly beyond the lateral cusps of the mentum. Second
joint of labial palpi as long as the third, strongly bent, bisetose ; second joint
of maxillary palpi very robust, strongly flattened, somewhat lunate, third
joint scarcely more than one-half as long as the fourth. Penultimate joints
of the antennae not appreciably flattened. Labrum transversely truncate
anteriorly, feebly bisinuate, angles right and very pronounced, lateral setae
nearly twice as long as the intermediate ones. Last joint of anterior tarsi
very long, having a very long seta at each side of its upper surface, three
penultimate joints wider than long, fourth joint rudimentarily bilobed.
Supra-orbital setae single, situated opposite the posterior limit of the eye ;
basal mandibular setae wanting ; eyes small, wider than long. Pronotum
much longer than wide, median line extremely strong and deep, basal im-
pressions very deep, punctate ; elytra more than twice as long as wide.

The appearance of the insect is unlike that of Bradyeellus, being
very long and slender; the pronotum is squarely truncate behind, with
the basal angles very slightly obtuse, and not at all rounded. There
is but one species described, viz. : —

A. linearis (Lee.)— Smith. Misc. Coll., 1863-66, vol. vi. p. 16. The

types in my cabinet were taken in the District of Columbia ; the length is
4.5 mill.

TH05. L. CASEY.

BRADICELLIJS.

B. llicidlis 11. sp. — Form ratlu'i- elongated, moderately convex; sides
nearly parallel ; glabrous above. Color above deep piceoiis-black, beneath
black, legs fulvo-testaceous, antennae and oral organs reddisli-piceous.
Head moderate, slender, longer than wide, very convex ; supra-orbital setae
stout, very slightly behind the middle of the eye ; eyes almost exactly circu-
lar, moderately convex ; antennae as long as head and prothorax together,
reddish-testaceous throughout, last seven joints compressed, third joint more
than twice as long as the second ; emargination of meiitum broad, tooth well-
developed, very slightly rounded at the tip ; dental setae approximate, long ;
on the sub-mentum, at a distance from each extremity equal to one-fourtli
its width, there is a pair of long stout setae, also a single short seta at each
lateral anterior angle. Prothorax widest Just in advance of the middle,
where it is one-third wider than long ; anterior margin very slightly shorter
than the posterior, broadly and feebly emarginate, posterior margin broadly,
feebly, and slightly irregularly arcuate ; anterior and posterior angles broadly
rounded ; sides rather strongly arcuate, most strongly so in advance of the
middle ; disk rather feebly convex, large ; basal impressions feeble, finely
and feebly punctulate ; median line narrowly impressed, distinct ; surface
polished, paler at the edges, margined narrowly throughout its circumfer-
ence. Elytra at base slightly wider than the contiguous pronotum ; sides
strongly divergent and arcuate for a short distance from the humeri, then
parallel and nearly straight for two-thirds the length posteriorly ; disk
moderately convex, obtusely rounded behind ; striae narrowly impressed,
intervals flat, polished, and minutely reticulated ; transverse basal groove
strongly bisinuate, making with the acute lateral edges at the humeri, very
acute angles ; .each elytron has a single puncture near the second stria and
at two-thirds the length posteriorly. First four joints of the anterior and
middle tarsi strongly and nearly equally dilated, densely spongy-pubescent
beneath ; first joint of the posterior tarsi very slightly longer than the second.
Length 6.0 mm.

Arizona (Morrison).

Tliis species is remarkable amongst its congeners, for the very
strong dilatation of the middle tarsal joints in the male ; the setae on
the sub-mentum are also somewhat singular.

HARPALUS.

II. opaciIS 11. sp. — Form and size nearly as in rujiiiianus. Body nearly
opaque, black. Head rather broad ; labrum short, broad, feebly, and
roundly emarginate anteriorly ; antennae scarcely as long as width of pro-
thorax, first joint nearly as long as the second and third together, rufo-testa-
ceous, remaining joints robust and thickly clothed with short piceous setae,
last joint perceptibly compressed ; last joint of maxillary palpi much darker
toward base. Prothorax nearly one-half as wide again as long ; sides rather
feebly arcuate, more so anteriorly, apex narrower than base; basal angles
rounded, lateral border narrow but. verv strong ; surface feeblv convex.

NORTH AMERICAN COLEOPTERA. 9

confusedly roughened near the basal angles ; median line nearly obsolete.
Elytra at base as wide as the prothorax, two-thirds as long again as wide,
evenly rounded behind, leaving the pygidium exposed ; sides parallel and
feebly arcuate ; surface evenly and strongly striate, interspaces moderately
convex. Scutellum extremely small, angulated behind. Pygidium finely
punctate. Legs moderate, black, tarsi very dark blackish-fuscous, first joint
of anterior nearly equal in length to the second and third together, slightly
shorter than the last ; posterior tarsi long and slender, first joint distinctly
longer than the second and third together, fourth joint very small. Length
11.0 mm.

Eastern Pennsylvania; one specimen, %.

I have only succeeded in finding one representative of this species,
which seems to be very distinct by reason of the structure of tlie hind
tarsi ; the mandibles are very large and robust, and are very blunt at
the tips, as if worn by long usage. It greatly resembles at first sight
several species of Anisodactylus.

The parasite of this species is very small, as long as the diameter
of the first tarsal joint ; it is narrowly oval, moderately convex, highly
polished, and cinereo-testaceous in color ; upon each side there is a
distinct impressed puncture, and there appears to be a transverse
segmentation in the anal region.

H. manliattailis n. sp. — Form rather slender, very convex. Entire
body and legs, with the exception of the tarsi, deep black, the latter dark
reddish-testaceous. Head large, convex, and highly polished ; eyes small
and rather distant from the posterior angles ; labrnm very feebly and nar-
rowly sinuate anteriorly, nearly one-half wider than long; epistoma bearing
one large setigerous puncture at each anterior angle, posterior transverse
suture very feeble ; antennae as long as the width of prothorax, first joint
reddish-testaceous, remaining joints much darker, fuscous, pubescence short,
very coarse, close, fulvous in color. Prothorax one-third wider than the
head, convex, base and apex equal in width ; median line distinct throughout
the length of the pronotum ; anterior angles acutely rounded, posterior
broadly and evenly rounded ; punctures at the base rather feeble and con-
fused. Scutellum small, triangular. Elytra almost imperceptibly wider than
the prothorax, one-half as long again as the head and prothorax together;
disk convex, finely, evenly, and distinctly granulate ; striae very fine, inter-
spaces flat ; sides parallel and very feebly arcuate. Abdominal segments
very unequal in length, the last longer than the two preceding together.
Posterior trochanters scarcely more than one-third as long as the femur ; first
joint of anterior tarsi nearly as long as the next two together, that of the
posterior much longer than the second and third together. Length 10.5 mm.

Staten Island, near the city of New York ; one specimen, % .
This species somewhat resembles fimestns, but it is very much less
robust than that species, and differs in several other characters. The

10 XnOS. L. CASEY.

mentum is not toothed, and the emargination is evenly rounded at
the bottom ; the hist joint of tlie maxilhiry palpi is very slightly
shorter than the penultimate, and is much paler in its distal than in
its basal half.

As in opacus, the first joint of the posterior tarsi is much longer
than the second and third together, and thus another barrier to the
union of Harpalus and Selenophorus, as separated in the table given
in the Classitication of the Coleoptera of North America, is removed;
in the present species this joint is almost equal to the next three
together.

H. vespertinus n. sp. — Form moderately robust, sides feebly arcuate.
Body intense black, highly polished. Head moderate, width across the eyes
slightly exceeding length including mandibles ; supra-orbital setae very long,
testaceous ; antennae about equal in length to width of prothorax, rather
pale testaceous throughout, last joint strongly compressed ; oral organs testa-
ceous, tips of mandibles darker. Prothorax much wider than the head, one-
half as wide again as long ; sides arcuate anteriorly, parallel and straight
posteriorly ; posterior margin transverse ; basal angles very slightly rounded ;
surface impunctate, feebly and longitudinally impressed on each side at the
base : median line very narrow but distinct. Elytra at base as wide as the
prothorax, two and one-half times as long as the pronotum, evenly rounded
behind, and leaving the tip of the last ventral segment exposed ; sides parallel
and very feebly arcuate ; striae close and strong, intervals convex. Scutellum
small, acute posteriorly. Legs moderate, femora and tibiae piceous-black
above, femora r«fo-testaceous beneath, tarsi rather pale testaceous, first four
joints of anterior tarsi equal in length in the male, last joint as long as the
first and second together. Length 8.5-9.0 mm.

Arizona (Morrison). Apparently quite abundant in the extreme
southwest.

In the coloration of the legs it resembles H. rvjimanus Lee, from
Lake Superior.

H. placidlis n. sp. — Form moderately slender. Color dark castaneous
above, slightly paler beneath, legs and antennae throughout still paler.
Head rather large, longer than broad ; eyes moderate, situated at one-third
the entire length from the posterior angles ; surface very convex, highly
polished, and excessively minutely punctulate ; labrum and epistoma nearly
as in mnnhuttunis, transverse suture very distinct ; antennae very slightly
longer than tlie width of prothorax ; emargination of mentum trapezoidal,
bottom broadly and rather feebly arcuate. Prothorax much wider than the
head, base very sliglitly longer than the apex ; anterior angles rather acutely
rounded, posterior broadly and evenly rounded ; surface moderately convex,
basal punctuation broadly diffused, rather feeble and somewhat confused.
Elytra very slightly wider than the prothorax, two-thirds as long again as
the head and prothorax together ; disk rather depressed, minutely and dis-
tinctly granulate ; striae moderately strong, intervals nearly flat. Posterior

NORTH AMERICAN COLEOPTERA. 11

trochanter nearly one-half as long as the femnr ; femora robust ; first joint of
posterior tarsi not equal in length to the next two together ; inner terminal
spur of anterior tibiae very long, robust at base ; outer apical spurs, three in
number, very stout ; on the under surface and in the middle of the distal
edges of the first two joints of the anterior tarsi, there is a short, acute tooth,
projecting at right angles to the axis of the joint. Length 9.5 mm.

"Willets Point, Long Island ; one specimen, % .

This species resembles fallax, and differs from that species super-
ficially in its proportionally longer elytra and shorter prothorax ; also
in the posterior angles of the latter, which are more broadly rounded.

H. niutaliilis Hald.

This appears to be a valid species, the differences between it and
herhivagus Say, lying principally in its smaller size, more narrow
and convex form, and in the structure of the prosternal intercoxal
process ; the prothorax is also relatively much longer and narrower
than in that species. Before determining the species in. my cabinet
from Dr. LeConte's collection, I had already separated the two species,
which can very readily be done by the unaided eye, indicating a dis-
tinct difference of facies ; mutahilis is much the smaller of the two.

The five folloAving species are the result of a study on a number of
specimens, all of which were included in my cabinet under the name
viridiceneus Beauv., and was as much a source of surprise to me as it
may perhaps prove to others. They are separated by the setigerous
punctures of the epistoma, and in this respect are more distinctly
characterized than many more marked species of this difficult genus.
I had long been inclined to think that a much smaller and narrower
form was a distinct species from vii-idiaineus, but was not prepared to
find such a variety in the others, which greatly resemble each other.
They are all metallic-green species, and may be clearly separated as
follows : —

Epistoma bearing two closely approximate and unequal setigerous punctures
at eaeli anterior angle ; also two, more widely separated, in the middle,
nearly on a line with the pairs at the angles vil'idiaeiieus.

Epistoma bearing two closely approximate and nearly equal setigerous punc-
tures at each anterior angle, and in addition, two rather more distant
punctures in the middle and near the posterior margin COllTictor.

Epistoma bearing two closely approximate setigerous punctures at each
anterior angle Caiioilicus.

Epistoma having but one setigerous puncture at each anterior angle.

Larger species. Head large ; elytra wider than prothorax llistralis.

Smaller species. Head smaller ; elytra as wide as prothorax.

aenesceus.

12 THOS. L. CASEY.

n. viridiacneus Beauv. — Head large. Prothorax one-half as wide
again as long, very slightly longer than the head, and very feebly narrowed
behind ; hind angles nearly acute, anterior angles rather broadly rounded ;
punctures at base very coarse and closely crowded, coalescent ; surface highly
polished, not granulate. Elytra equal in width to prothorax ; sides parallel
and very feebly arcuate ; surface strongly and very minutely granulated.
Length of head and prothorax together 4.5 mm., of elytra 6.3 mm. ; width
of elytra 4.0 mm. Female.

This is a common form, and is widely distributed in the United
States, it is mentioned liere simply for comparison.

The European ceneus seems to be distinct from all our allied species.

H. COiivictor n. sp. — Head small, much broader than long. Prothorax
much longer than the head, one-third as wide again as long ; sides much
more arcuate anteriorly than posteriorly ; punctuation at the base deeper,
more widely diflused and less coalescent than in any of the other species.
Elytra as wide as prothorax ; sides parallel and nearly straight ; granulation
nearly obsolete ; striae deep, interspaces Hat. Length of head and prothorax
together 4.6 mm., of elytra 5.S mm. ; width of elytra 3.9 mm. ; male.

Willets Point, Long Island.

H. canon icus n. sp. — Form as in viricUieneux. Head small. Prothorax
just percei)tibly narrowed behind, not one-half as wide again as long; sides
strongly and nearly evenly arcuate ; punctures as in virHliceneus ; hind angles
less strongly, anterior angles more strongly arcuate than in that species.
Elytra very slightly wider than the prothorax ; sides parallel and rather
feebly arcuate ; granulation very feeble. Length of head and prothorax
together 4.2 mm., of elytra 5.0 mm., width of elytra 3.8 mm, Male.

Rhode Island.

II. llistralis n. sp. — Head large. Prothorax nearly as in viridiij;neus.
Elytra distinctly wider than the prothorax ; sides parallel and strongly
arcuate ; disk strongly and minutely granulated ; striae more feeble, inter-
spaces much flatter than in either viridi(enens or canonicus. Length of head
and prothorax 4.5 mm., of elytra 6.2 mm. ; width of elytra 4.3 mm. Female.

New York State.

The elytra have in the type specimen a strong reddish reflection,

II. aenescens n. sp. — Form j-iroportionally much narrower and more
slendiT than in any of the four species which precede. Head rather large,
as wide across the eyes as long. Prothorax but slightly wider than the head,
feebly narrowed behind ; sides much more arcuate anteriorly than poste-
riorly ; more finely and sparsely punctured at base than in the other species
of this group, and also covering a more limited area ; much longer than the
head, and one-third as wide again as long. Elytra as wide as the prothorax ;
sides parallel and nearly straight ; striae moderate, interspaces feebly con-
vex ; granulation excessively minute and regular. Length of head and pro-
thorax together 4.0 mm., of elvtra 6,0 mm, ; wiilth of elvtra 3.4 mm, Male.

NORTH AMERICAN COLEOPTERA. 13

Rhode Island ; Willets Point, Long Island.

This species has the same arrangement of setae upon the epistoma
as lustralis, but they are more widely separated in other characters
than any other two members of this rather singular group.

In the series of four specimens which I have before me, the males
and females are equally divided. There is no perceptible variation
among them dependent upon sex, except in the usual strong dilata-
tion of the tarsal joints in the male.

SEI.E1V0PHORUS.

S. aeneopiceilS n. sp. — Form nearly as in pedicularius Dej. Color above
piceo-aeneous, beneath slightly paler, piceous, paler toward the head, legs
and antennae very pale plceo-testaceous, the latter nearly uniform through-
out. Head nearly as broad as long, convex ; eyes small ; supra-orbital seta
long, slender, and situated opposite a point of the eye about one-fourth the
length of the latter from its posterior extremity ; labrum paler in color ;
sides convergent anteriorly ; antennae shorter than the head and prothorax
together, second joint nearly three-fo-urths as long as the third, joints seven
to ten equal in length, and two-thirds as long as the last ; emargination of
mentum very deep, evenly rounded at the bottom, parabolic ; on the edges
of the emargination, near the bottom and somewhat distantly separated,
there are two short stout setae ; on the sub-mentum there are four setae,
two at each extremity, all approximately on the same transverse line. Pro-
thorax widest slightly in advance of the middle, where it is nearly one-half
wider than long ; sides rather strongly arcuate, most strongly so anteriorly;
apical angles broadly rounded, basal rounded but less broadly so ; anterior
and posterior margins nearly transverse and straight ; disk much more
transversely convex anteriorly than posteriorly, polished, minutely reticu-
lated, narrowly margined throughout its circumference, impunctate at the
base; median line very fine and becoming obsolete near the bases; basal
impressions feeble and irregular. Elytra at base as wide as the contiguous
pronotum; sides divergent and arcuate near the humeri, thence parallel
and very feebly arcuate for three-fifths the entire length ; together acutely
rounded behind ; disk strongly declivous at the sides, about three times as
long as the pronotum, slightly less than twice as long as wide ; striae finely
impressed, intervals very feebly convex, polished, minutely reticulated ;
punctures of second, fifth, and seventh striae distinct, impressed, rather
small. First joint of posterior tarsi fully as long as the next three together.
Length 6.1-6. (j mm.

Arizona (Morrison).

The erect setiform pubescence around the exterior edges of the
elytral disk is sparse and very limited in extent ; not as dense as in
pedicidartus.

The three species gagatinvs, pedicula7-ri(s, and ceneopicens, which
resemble each other more or less, may be separated by the posterior
tarsi as follows : —

14 Tiios. L. caset:.

In ceneopiceus the second joint is much longer than the third; third
and fourth equal ; fourth and fifth together much longer than the
second and third together ; fifth scarcely more than two-thirds as
long as the first.

In pedicidarius the second, third, and fourth joints decrease in
length with great uniformity; the fourth and fifth together are very
much longer than the second and third.

In ffaf/atiuus tlie first joint is not as long as the next three together;
the second, third, and fourth joints decrease very uniformly and
rapidly in length ; the second and third together are slightly longer
tlian the fourth and fifth together ; the fifth is equal in length to the
second, and is but slightly more than one-half as long as the first ;
the entire tarsus is much more slender.

These differences are very striking, and are so great that it is
difficult to conceive of their not having been employed in the classi-
fication of the species in this genus.

It may be well to remark, while considering this genus, that
(-S".) ellipticus Dej. is quite distinct from the {S.) granarius of that
author.

STE^OLOPHUS.

S. gracilis u. sp. — Form as in ochropezus. Body pale piceous-brown
above, somewhat paler beneath. Head across the eyes just perceptibly
narrower than the length including mandibles ; the latter very prominent ;
antennae slender, nearly as long as the elytra, first two joints piceo-testace-
ous, remainder dark piceous-brown. Prothorax small, slightly wider than
head and rather broader than long, very feebly atid evenly emargiuate
anteriorly ; sides strongly arcuate, rather more strongly so anteriorly ;
posterior angles rounded ; lateral border distinct ; surface highly polished,
confusedly punctate near the basal angles ; median line nearly obsolete.
Elytra at base one-third as wide again as prothorax, twice as long as broad
at base, evenly rounded behind ; sides parallel and distinctly arcuate ; sur-
face moderately convex, striae deep and well marked, close, interspaces very
convex and highly polished. Legs moderate, pale flavo-testaceous. Length
<i.O mm.

Arizona ; one specimen.

This species resembles ochropezus in its general form, but differs in
many other characters, among which may be cited the color of the
under surface, which in ochropezus is very dark, in some specimens
nearly bhick, while in the present species this color is paler than
the upper surface, which is in turn very much paler than that of
ochropezus : the spine of the front tibia projects from the middle point
of that member, while in the latter it is situated mucl) nearer the

NORTH AMERICAN COLEOPTERA. 15

apex ; the last joint of the anterior tarsi in the Eastern species is
much longer than in the Western representative. From the depth
of color seen in the antennae, the supposition that the specimen from
which the description is taken is immature seems untenable.

BEItlBIDIlJM.

B. TinilllllllU n. sp. — Form rather slender, stib-depressed. Head
moderate, as wide as long ; eyes large, prominent ; supra-orbital elevations
distinct and well-developed ; anterior supra-orbital seta opposite a point of
the eye two-fifths the length of the latter from the anterior extremity, poste-
rior seta much smaller, and situated opposite a point one-fourth the length
from the posterior limit ; interocular surface feebly convex, highly polished,
brilliant metallic golden-aeneous in color ; labrum more than twice as wide
as long, apical angles acute, front nearly transversely truncate ; third joint
of antennae as long as the first ; emargination of mentum very broad and
shallow, tooth very stout, acute, and slightly longer than the depth of the
emargination ; dental setae strong, situated on the base of the tooth ; there
are two setae transversely arranged near each basal angle of the submentum,
also a smaller seta at each anterior angle. Prothorax widest at slightly
more than one-third its length from the apex, where it is slightly wider than
long; sides strongly and evenly arcuate anteriorly, very feebly sinuate just
before the basal angles ; the latter acute, anterior angles broadly rounded ;
base and apex nearly transverse, the former just perceptibly shorter than
the latter ; disk rather strongly and very evenly convex, extremely highly
polished, brilliant golden-aeneous, without trace of irregularity or minute
reticulation ; longitudinal carinae at the basal angles short and very strong ;
just within each there is a deep, rounded impression ; median line narrow
and distinct ; sides narrowly reflexed. Elytra across the humeri nearly twice
as wide as the pronotum at base ; sides parallel and nearly straight for three-
fourths the length ; disk more than three times as long as the prothorax,
acutely rounded behind, rather depressed, slightly less than twice as long as
wide ; very strongly punctate, punctures round, very deeply impressed,
arranged in striae-like rows ; distance between the punctures in the rows
much less than the distance between the latter ; surface variously mottled
with yellowish-testaceous and dark blackish-castaneous, with a preponder-
ence of the former, very highly polished, with greenish metallic! reflections
from the punctures. Under surface polished, piceous-black ; legs pale yel-
lowish-testaceous. Length 4.6 mm.

Arizona.

The reflected light from the pronotum is tinged with metallic-green
toward the edges of the disk, while the full reflected light is of a very
brilliant aeneous tint.

TACHYS.

T. litoralis n. sp. — Form elongated, narrow, sides parallel. Head and
prothorax reddish-testaceous ; elytra darker, fusco;is, tips paler ; legs, oral

16 THOS. L. CASEY.

organs, and bases of the antennae pale flavo-testaceous, remainder of antennae
piceous-brown ; under surface of the body slightly darker than the legs, but
paler than the upper surface. Head slightly longer tlian broad, upper sur-
face distinctly but minutely granulate ; labrum one-half as wide again as
long, very feebly eniarginate anteriorly, and bearing six setae, the two lateral
ones very long ; eyes moderate, coarsely granulate, one-third their length in
advance of the posterior angles ; antennae scarcely one-half as long as the
body, first joint slightly shorter and tliicker than the second, equal in length
to the third, joints four to ten shorter than the third, sub-equal and cylin-
drical, last joint very slightly thicker and two-thirds longer than the tenth,
sub-cylindrical and obtusely acuminate at tip ; mentum tooth distinct, sim-
ple, projecting below the general surface ; immediately behind the tooth are
two very large, deep, closely approximate, foraraenous punctures ; fourth
joint of maxillary palpi extremely short and narrow, almost invisible. Pro-
thorax slightly broader and equal in length to the head, one-half as wide
again as long ; anterior margin nearly transverse, posterior transverse and
feebly sinuate toward the angles ; sides arcuate, slightly more strongly so
anteriorly, very feebly sinuate just before the posterior angles, which are
strongly and acutely toothed ; anterior angles very slightly rounded ; surface
rather feebly convex and very narrowly bordered. Elytra at base slightly
wider than the prothorax ; humeral angles rather pronounced ; sides parallel
and feebly arcuate ; suture three times as long as the prothorax ; border
narrow, continuing from the apices as a sutural stria, other striae almost
obsolete: near the inner basal angle of each elytron there is a small circular
wart-like elevation, which is apparently setigerous ; there are on the disk of
each two setae, and just behind the humeral angles three rather closely
approximate, also two to three near the border and two-thirds the length
posteriorly. Scutellum small, acute behind, sides arcuate. First four joints
of anterior tarsi decreasing uniformly and very gradually in length and width,
very short, last joint somewhat longer than the first and second together,
narrow at base. Last ventral segment covered very sparsely with very fine,
short, recumbent puV)escence toward tip, where there are four equi-distant
erect setae arranged transversely. Length 2.3, breadth 0.9 mm.

Atlantic City, New Jersey; one specimen.

This seems to be ji very distinct species, being very much more
slender and parallel than any other which I have seen. Resembles
scitnlits in the Ibrameniform apertures behind the mentum tooth ; they
are, however, smaller and closer than in that species.

TITHAMS n. gen.

Mentum coriaceous, short and very wide, broadly, roundly and very evenly
emarginate in front, continued anteriorly by the hypoglottis, which appears
to form a part of the true mentum ; hypoglottis and mentum together trape-
zoidal ; sides straight and rapidly convergent, narrowly and transversely
truncate anteriorly. Maxillary palpi very well developed, five-jointed, very
sparsely and coarsely setose, last joint very small, subulate. Labial palpi

NORTH AMERICAN COLEOPTERA. 17

very short, not longer than the third joint of tlie maxillary, first joint very
robnst, second more slender, sub-cylindrical, third thin and subulate, fourth
very minute and obscure, subulate. Grular sutures very strong. Eyes ex-
tremely long, regularly oval. Labrum broadly and very feebly emarginate.
First joint of antennae longest, second shorter and less robust, third longer
than the second, joints four to ten short, very broad, increasing in width,
last joint nearly as long as the two preceding together, constricted slightly
before the middle, obtusely ovular at tip. Middle coxae distant. Meso-
sternal process parabolic, extending to mid-coxal section, where it is met by
a broadly truncated extension of the metasternum, truncation slightly emar-
ginate.

This genus is founded on Dr. LeConte's Aleochara valida, one of"
the largest members of the group Aleocharini ; it is found in Arizona.

In many of its characters it resembles Aleochara, but in the struc-
tui-e of the mesosternum between the coxae it differs entirely from it,
there being not even a trace of the prominent medial ridge so cliarac-
teristic of that genus.

For purposes of comparison I have given on plate I, fig. 8, a
representation of the arrangement of the processes between the
middle coxfe in Aleochara, taken from A. bimacalata.

There does not appear, at the present time, to have been more than
one species discovered, viz: —

T. Talida (Lee). — Journ. Acad. Nat. Sci. Phila., 1858, ser. 2. vol. iv.
p. 16.

The eight outer joints of the antennae are covered very densely
with a closely recumbent, excessively short pubescence, and there is
besides this a system of very long, sparse, coarse, erect setae, totally
distinct from the first.

EMPLEIVOTA n. gen.

Mesosternal process very narrow, extending nearly the entire distance
between the coxae, where it becomes very acute and meets a somewhat
acutely triangular projection of the metasternum. Maxillary palpi short,
five-jointed, fourth joint very narrow, elongated, subulate, fifth joint exces-
sively minute, as broad as long. First three joints of antennae decreasing
uniformly in length, fourth globular, remaining joints incrassate, joints five
to ten broader than long, last joint large, conoidal, as long as the two pre-
ceding together. Hind coxae very narrowly separated, spurs of middle tibiae
strong and slightly unequal in length.

E. maritinia n. sp. — Form moderately slender, sides parallel. Pubes-
cence of head and abdomen much longer, more erect, and much sparser than
that of prothorax and elytra, which is very dense, recumbent, and growing
outward from the median line, pale piceo-cinereous. Color deep piceous-
black, apices of the abdominal segments paler. Head strongly deflexed.
Published August, 1884. 2

18 THOS. L. CASEY.

slightly longer than broad, ovulate, wider behind the eyes ; surface very
feebly, coarsely and sparsely punctate, except along a broad median space,
also uniformly and minutely granulate ; eyes very flat, on the sides of the
head, much more than their own length in advance of the posterior angles,
covered sparsely with erect setae ; labrum short, broad, feebly emarginate ;
antennae very finely pubescent, scarcely longer than the head. Prothorax
anteriorly equal in width to the head, arcuately widening to a point slightly
in advance of the middle, where it is distinctly broader than long ; sides
thence nioderat(!ly convergent and arcuate posteriorly ; basal angles so
obtuse as to be almost imperceptible ; posterior margin broadly, evenly, and
very strongly arcuate, anterior margin almost transverse ; surface very feebly
and evenly punctate, minutely and strongly granulate. Elytra at base as
wide as the prothorax ; sides nearly parallel, distinctly shorter than width
at base and moderately arcuate ; each elytron nearly squarely truncate
behind, with the angles rounded, truncation very feebly arcuate ; surface
depressed, sculptured like the prothorax, granulation finer and more indis-
tinct. Abdominal segments of equal width ; border strong, erect, and very
deep ; surface very obscurely granulate, granulation stronger on the fifth
segment, which is also sparsely and very feebly punctulate ; posterior mar-
gins transverse. Legs short ; femora and tibiae deep piceous-brown, tarsi
piceo-testaceous. Under surface of abdomen covered sparsely with rather
short, fine, recumbent setae.

Mnle. — Sixth ventral segment produced at apex ; sides sinuous ; tip ob-
tusely rounded.

Female. — Sixth segment broadly and acutely angulate at tip ; sides straight.

Length 3.0-4.0 mm.

Atlantic Cit}!, New Jersey; Fortress Monroe, Va.

Tliis is a common species, found under debris cast up by the waves
on tlic sea-const; it bears a certain resemblance to botli Aleocliara
und llomalota.

Eu.^STIlETIXI.

Of the three genera which compose this tribe — Eucesthetus, Eda-
plius, and Stictocranius — the first is the only one, the representatives
of which seem to be in any degree numerous ; but nothing positive
can be stated in regard to numbers, owing to the excessive minute-
ness of the insects and the consequent ditUculty of collecting them.

T.'pon a careful and long-continued study of the Stenini, as well as
a somewhat thorough review of the Pa^derini, it appears evident to
me that the three genera in question can belong to neither of these
tribes, altliough most closely allied to the former, by the almost
cxattly similar structure of the antennae, oral organs, and thorax, in
addition to the like position of the antennae upon the front ; it differs
very greatly in the character of the eyes, sculpture, structure of the
mentuni, color and density of tlie integuments, and more especially

NORTH AMERICAN COLEOPTERA. 19

in the structure of the tarsi, which are all four-jointed. With the
PjBclerini tliey seem to possess very few characters in common,
differing from them even to a more marked degree in the tarsal and
antennal structures.

On the other hand, they possess many characters not found in
either of the tribes under consideration ; as, for example, the minute
denticulation of the labrum in Eua^sthetus and the four-jointed tarsi,
as well as the small, very convex, coarsely granulated eyes, situated
very near the posterior angles of the head.

From these considerations, therefore, it has been deemed best to
constitute of these three genera, a tribe equal in value to either the
Stenini or the Pfederini, and to be placed between them, with the
remark that the affinities which it exhibits are greater toward the
former than toward the latter.

As the genus Stictocranius contains but one known species, which
has been sufficiently described by Dr. LeConte, it is proposed here
to limit the discussion to the genera Eua3sthetus and Edaphus, of
which the following tables and descriptions will serve approximately
to identify the species discovered thus far. The material at hand
forms a part of what is probably the most extensive American collec-
tion of these genera yet bi'ought together ; the Euajstheti were all taken
by Messrs. E. A. Schwarz and H. G. Hubbard, to whom I am indebted
for many acts of courtesy.

EU^STHETUS ErAv.

The species of this genus are very difficult to discriminate, and
especially so to satisfactorily tabulate, owing to a very remarkable
lack of salient characters. Those forms which appear to me worthy
of specific recognition may be classified as follows : —

Elytral suture distinctly shorter than the pronotum.
Elytra strongly punctate ; disk polished throughout.

Prothorax much broader than long ; sides of elytra strongly divergent

posteriorly 1. tircvipeiiiiis.

Prothorax but slightly wider than long ; sides of elytra feebly divergent.

Large species 1.6 mm.; blackish-castaneous 2. piinctatlis.

Very small species 1.0-1.2 mm.; very slender ; much paler, rufous or

rufo-testaceous 3. florid ae.

Elytra feebly punctate ; disk having a large area, about the inner apical
angles excessively minutely granulated and not polished.
Sides of elytra strongly divergent posteriorly ; border of fourth and fifth

ventral segments strong 4. giniilis.

Sides of elytra very feebly divergent posteriorly ; border of fourtli and
fifth ventral segments very feeble, nearly obsolete... 5. nilllldulus.

20 TIIOS. L. CASEY.

Elytral suture in length equal to or longer than the pronotum.
Elytra more or less punctulate.

Species robust ; sides of elytra rather strongly divergent posteriorly ;

color pale rufo-testaceous. Mass ti. robustllliis.

Species more slender ; sides of elytra very feebly divergent posteriorly ;
color dark piceo-rufous or blackish-castaneous.
Disk of elytra iridescent ; short canaliculations of pronotum very

deep and distinct 7. iripeiinis.

Disk of elytra not iridescent ; canaliculations of prothorax either
entirely absent, or reduced to very indistinct, shallow erosions,
and situated much nearer the base.

Prothorax much %vider than the head S. texailUS.

Head and prothorax ecjual in width or extremely nearly so.

9. ainericaiiiis.

Elytra entirely inipunctate : very small robust species ; elytra much longer

than the pronotum ; blackish-castaneous, elytra usually more or less

clouded with rufous 10. atoniUS.

1. E. brevipeilliis n. sp. — Form rather slender. Pubescence rather
long, line, semi-erect, evenly distributed, pale piceous. General color dark
reddish-testaceous, head and abdomen paler, antennae and legs still paler.
Head rather large, very slightly broader than long ; eyes very small ; inter-
ocular surface very broad, evenly convex, strongly and sub-variolately punc-
tate, punctures round, slightly irregularly distributed, close ; between the
antennae and in the middle there is a small, inipunctate area; antennal
tuberculations very small and distinct ; teeth of labruni rather widely sepa-
rated ; antennae moderate, joints three and four equal, five, six, and seven
sub-equal in length, the last distinctly thicker, oval, eighth joint smaller,
globular, ninth transversely oval, as long as the eighth, tenth one-half wider
than the ninth, eleventh equal in width, distinctly longer than the ninth
and tenth together, linely acuminate. Prothorax one-third wider than long ;
sides parallel, evenly and rather strongly arcuate for three-fojirths the length
from the apex, then abruptly, strongly convergent behind, and very feebly
sinuate ; posterior angles well marked, though rounded ; anterior margin
much longer than the posterior, equally arcuate ; surface rather finely,
strongly, and evenly punctulate, punctures roundly impressed, not deep,
well marked, separated by slightly more than their own widths ; between
the centre of the disk and each basal angle there is a short, longitudinal
erosion. Elytra at base as wide as the prothorax ; sides strongly divergent
posteriorly, much shorter than the width at base, evenly and rather feebly
arcuate ; together broadly, roundly, and rather strongly emarginate behind ;
.suture slightly more than two-thirds as long as the pronotum ; surface finely,
rather feebly, evenly, and distinctly punctulate, punctures round, impressed,
and separated by much more than their own widths ; sutural striae very
strong. First two abdominal segments as wide as the contiguous elytra ;
border very strong, evident on all the segments. Prosternum .strongly punc-
tate, except toward the coxae. Legs moderate ; first joint of the posterior
tarsi sliglitly shorter than the fourth, fourth equal in length to the second
and third together.

NORTH AMERICAN COLEOPTERA. 21

Male. — Unkiiow n .

Female. — Sixth ventral segment rather acutely rounded behind.

Length 1.3 mm.

Detroit, Michigan ; two specimens.

2. E. pillictatus n. sp. — Form elongated, sides nearly parallel. Pubes-
cence rather long, somewhat dense, semi-erect, piceo-cinereous and promi-
nent. Head large, slightly wider than long ; interocular surface strongly
and evenly convex, rather finely, very closely, and evenly punctate, jjunc-
tures variolate, round, and sometimes coalescent ; supra-antennal tubercula-
tions round and prominent ; teeth of labrum longer than breadth of intervals ;
antennae very slightly longer than the prothorax, joints four to seven equal,
third slightly longer, eighth much shorter, globular, last joint much the
most robust, as long as the ninth and tenth together, finely and obliquely
acuminate ; maxillary palpi moderate, third joint robust, very slender at
base, as long as the two preceding together ; terminal joint of labial palpi
setiform and distinct ; gula having a rounded, feebly impressed puncture
near the posterior limits of the buccal fissure. Prothorax widest at one-third
the length posteriorly, where it is just perceptibly wider than the head and
slightly broader than long ; sides thence rather strongly convergent poste-
riorly, feebly sinuate near the base ; anterior margin distinctly longer than
the posterior, equally arcuate ; basal angles distinct, apical slightly rounded ;
surface strongly convex, densely, rather finely, nearly evenly punctate,
punctures round ; toward the base, on each side of the middle, there is a
very feebly impressed, longitudinal line. Elytra at base very slightly wider
than the prothorax ; sides moderately divergent posteriorly, rather strongly
and evenly arcuate ; together broadly, roundly, and rather strongly emargi-
nate behind ; suture shorter than the pronotum, one-half shorter than the
width at base, sutural sti-iae strong, punctures round, rather small, very
evenly distributed and close, somewhat feebly impressed, interspaces convex,
nearly twice as wide as the punctures, and highly polished. Abdominal
segments strongly margined ; sides arcuate, first slightly wider than the
contiguous elytra ; surface feebly convex, impunctate, very minutely reticu-
lated, feebly shining. First joint of posterior tarsi one-half longer than the
second, very slightly shorter than the last, second joint very slightly longer
than the third. Prosternum rather distantly punctate, punctures impressed,
rather small and distinct. Length 1.6 mm.

Crescent City, Florida; one specimen, 9.

The color of this very distinct species is of a rather dark fuscous ;
antennae, oral organs, and tarsi paler and testaceous.

3. E. floi'idae n. sp. — Form slender. Pubescence of elytra short, recum-
bent, rather sjjarse, fine, and inconspicuous, that of head and prothorax
longer, more erect, and prominent, that of abdomen still longer, piceo-cinere-
ous throughout. Color throughout dark reddish-testaceous. Head moderate,
slightly wider than long; eyes rather large, evenly convex; interocular
surface moderately and evenly convex, rather coarsely punctate, punctures

22 TH05. L. CASEY.

round, ratlier shallow, evenly distributed, interspaces as wide as the punc-
tures, highly polished ; labrum very broadly arcuate, teeth robust, longer
than their distances asunder ; supra-antennal tuberculation small ; antennae
robust, slightly longer than the width of head, second joint longer and more
robust than the first, joints three to six uniformly and gradually decreasing
in length, seventh more robust, slightly elongated, oval, eighth smaller than
the seventh, globular, ninth transversely oval, no longer than the eighth,
tenth wider than long, nearly twice as wide as the ninth, eleventh as long as
the ninth and tenth together, as broad as the latter ; nientum much broader
than long, concave in the middle, very feebly emarginate anteriorly ; maxil-
lary palpi moderate. Prothorax widest slightly behind the middle, where it
is slightly broader than long, and very slightly broader than the head ; sides
thence very feebly convergent and nearly straight to the anterior angles,
which are suddenly rounded, and strongly convergent and nearly straight
posteriorly ; anterior margin longer than the posterior, equally arcuate ; disk
highly polished, evenly convex, punctate as on the head ; just behind the
centre and on each side of the axis there is a shallow longitudinal erosion.
Elytra at base equal in width to the prothorax ; sides moderately divergent
posteriorly and feebly arcuate ; together broadly and feebly emarginate be-
liind ; suture much shorter than the pronotum ; surface punctured as on the
liead, though rather more distantly and feebly ; sutural striae strong. Abdo-
minal segments strongly margined toward the base, very feebly so posteriorly ;
surface impunctate. First joint of posterior tarsi as long as the next two
together, slightly shorter than the fourth.

Mule. — Fifth ventral segment very minutely emarginate behind, emargina-
tion abruptly terminated, scarcely one-sixteenth as wide as the apex, evenly
rounded, and about five tiiisw?s as wide as deep ; sixth segment very deeply
and narrowly incised at apex, incisure two and one-half times deeper than
wide.

FemiiJe. — .Sixth ventral segment rather acutely angulate behind.

Length 1.0-1.2 mm.

Florida (Tampa, Enterprise) ; two specimens.

The presternum is coarsely and rather distinctly punctate in its
nnt(M-ior half, posterior half impunctate. Metasternum very large,
higlily [)olislied, ghibrous, ami imi)unctate ; darker in color.

4. E. siinilis n. sp. — Form rather slender. Pubescence as in hrevipennis,
though rather more sparse. Color dark reddish-testaceous, antennae, legs,
and palpi distinctly paler. Head moderate, slightly broader than long ;
interocular surface strongly convex, strongly and closely punctate, punctures
round, very shallow, and very distinctly defined, variolate, separated by
nearly their own widths ; in the middle and between the antennae there is
an impunctate area ; antenual tuberculations very strong and prominent ;
teeth of labrum long and slender ; antennae moderate in length, third and
fourth joints sub-equal, joints five to seven sub-equal, distinctly shorter than
th.' fourth, eighth globular, nintli transversely oval, as long as the eighth,
tenth as long as wide, one-half wider than the ninth, eleventh as wide as the

NORTH AMERICAN* COLEOPTERA. 23

tenth, rather finely acuminate at the tip. Protliorax just perceptibly wider
than the head ; sides nearly parallel and rather strongly arcuate to a point
slightly behind the middle, then strongly convergent posteriorly and nearly
straight ; anterior angles broadly rounded, posterior very obtuse, though
distinct and but slightly rounded ; width two-fifths greater than the length ;
apex much longer than the base, equally arcuate ; disk evenly convex,
strongly punctate, punctures round, small, impressed, generally separated
by more than twice their own widths, interspaces convex and very highly
polished ; toward the basal angles there are several large, deep punctures
irregularly disposed. Elytra at base as wide as the prothorax ; sides strongly
divergent posteriorly, shorter than the width at base, strongly and evenly
arcuate ; together broadly, roundly, and strongly emarginate behind ; suture
very slightly more than three-fourths as long as the pronotum ; surface feebly
punctate, punctures round, generally separated by more than twice their
own widths, becoming much more feeble, almost obsolete, posteriorly. First
three abdominal segments as wide or wider than the contiguous elytra ; sides
parallel and rather strongly arcuate ; border strong ; surface minutely granu-
lose or reticulated, feebly shining. Legs moderate ; first joint of posterior
tarsi slightly shorter than the fourth, fourth equal in length to the second
and third together. Prosternum feebly and coarsely punctate in its anterior
third. Metasternum impunctate, not darker than the remainder of the under
surface, distinctly carinate anteriorly in the middle.

Male. — Unknown.

Female. — Sixth ventral segment broadly angulate at apex.

Length 1.3 mm.

Tallahassee, Florida; two specimens.

This species greatly resembles brevipennis, but differs in many
minor characters. In the latter the prothorax is I'elatively much
longer, is widest behind the middle, and is very closely punctate ; in
similis the prothorax is much shorter and broader, is widest before
the middle, and is more deeply and sparsely punctate ; the elytral
suture is relatively longer in similis, and the elytral punctures are
much more distant, slightly coarser and more feeble than in brevi-
2)ennis.

5. E. iniindllllis n. sp. — Form slender. Pubescence sparse, rather
fine and long, semi-erect, piceous. Color dark castaneous, antennae and
legs paler. Head moderate, very slightly wider than long ; interocular
surface coarsely, strongly, and nearly evenly punctate, punctures round,
shallow, very distinctly defined, generally separated by their own widths ;
antennal tuberculations very distant, small, and very prominent ; teeth of
labrum twice as long as their distances asunder ; antennae moderate in
length, joints three to five decreasing nearly uniformly and just perceptibly
in length, sixth and seventh shorter, sub-equal in length, the latter much
thicker, oval, eighth small, globular, ninth strongly transverse, oval, slightly
longer than the eighth, tenth two-fifths wider than the ninth, as broad as
long, cylindrical, eleventh as long as the two preceding together, sides nearly

24 THOS. L. CASEV.

parallel, then suddenly acuminate at tip. Protliorax widest slightly before
the middle, where it is very slightly wider than the head ; sides parallel and
Hvenly arcuate for two-thirds tlie length posteriorly, then rapidly convergent
and feebly sinuate ; anterior margin slightly longer than the posterior,
equally arcuate ; disk evenly convex, slightly more than one-third wider
than long, punctures coarse, deeply impressed, round, evenly distributed,
interspaces slightly wider than the punctures, slightly convex and highly
polished ; near the base, and equidistant from the middle and each basal
angle, there are two longitudinal erosions or aggregations of deep coalescent
punctures. Elytra at base just perceptibly wider than the pronotum ; sides
rather feebly divergent posteriorly, slightly shorter than the width at base,
evenly and somewhat strongly arcuate ; together broadly, somewhat angu-
larly and moderately emarginate behind ; suture about four-fifths as long as
the pronotum ; surface narrowly and rather strongly impressed along the
suture, feebly and sparsely punctulate ; minutely granulose area near the
inner apical angles impunctate as in similix and robustuhis; sutural striae
deep. First two abdominal segments slightly broader than the contiguous
elytra ; surface minutely reticulated and feebly lustrous ; border strong,
except on the fourth and fifth segments, where it is almost obsolete. Legs
moderate.

Mule. — Unknown.

Female. — Sixth ventral segment angularly rounded behind.

Length 1.3 nmi.

Cambridge, Mass.; one specimen.

Greatly resembles siinilis, but differs in the narrower thorax, less
divergent elytra, longer elytral suture, and more feeble emaigination
of the elytra behind. The principal distinction, however, is in the
lateral border of the fourth and fifth ventral segments, it being almost
obsolete and reduced to the simple line of juncture of the dorsal and
ventral surfaces in niimdulns, while in similis tlie border is very wide
and strong on the fourth segment, and narrower, though still very
distinct, on the fifth.

The minutely granulose portion of the elytra is always of a paler
tint tiiaii the remainder of the disk ; this may be a simple o|)tical
phenomenon, arising from the dispersion of the rays of light ; the
satne difference is seen in the color of a rough stone and the same
when polished, it being then much darker.

G. E. roblistiiliis n. sp.— Form robust. Pubescence rather short and
abundant, evenly distributed, fine, semi-erect, pale piceous. Color of head,
l)i<.tli(.rax, and abdi>mon rather dark reddish-testaceous, base of elytra dark
castaneous, remainder of elytra rufous. Head large, very slightly wider
than long; interocular surface strongly and irregularly punctured, punc-
tures crowded near the sides, much more loosely scattered along the middle,
round, sub-variolate; antennal tuberculations small and very prominent;
antennae moderate, third joint one-third longer than the fourth, fourth and

NORTH AMERICAN COLEOPTERA. 25

fifth equal, sixth and seventh slightly shorter and equal, eighth glohular,
ninth very slightly wider than long, slightly longer than the eighth, tenth
as long as wide, one-half wider than the ninth, sides nearly straight, eleventh
longer than the two preceding together ; maxillai-y palpi very long and well
developed, Prothorax widest slightly behind the middle, where it is scarcely
more than one-third wider than long ; sides thence very feebly convergent
and evenly arcuate anteriorly, merging gradually into the very broadly
rounded anterior angles, much more strongly convergent and distinctly
sinuate posteriorly ; anterior margin distinctly longer than the isosterior,
equally arcuate ; surface evenly convex, very highly polished, strongly
punctured, punctures rather variolate, round, separated by from once to three
times their own widths, much coarser and deeper in a line along the base,
and in two longitudinal lines, extending from the base to the middle, and
dividing the pronotum laterally into three equal parts. Elytra at base as
wide as the pronotum ; sides rather strongly divergent posteriorly, distinctly
shorter than the width at base, evenly and strongly arcuate ; together broadly,
roundly, and moderately emarginate behind ; suture slightly shorter than
the pronotum ; disk slightly depressed along the suture, feebly, coarsely,
and evenly punctulate, punctures round, very feebly impressed, and sepa-
rated by slightly more than their own widths ; surface highly polished near
the base and exteriorly, excessively minutely granulose and not polished in
the neighborhood of the inner apical angles ; in this granulated area the
punctures become almost obsolete ; sutural striae very deep. First two
abdominal segments slightly broader than the contiguous elytra; surface
scarcely shining ; border very strong. Legs moderately long ; first joint of
posterior tarsi equal in length to the next two together, and slightly shorter
than the last.

Male. — Fifth ventral segment emarginate in^ts middle twelfth at apex,
emargination evenly rounded, and about six times as wide as deep ; sixth
segment very narrowly and deeply sinuate at apex, sinus two and one-half
times as deep as wide.

Female. — Unknown.

Length 1.4 mm.

Cambridge, Mass. ; one specimen.

A very distinct species. The extremely minute granulation of the
elytra near the inner apical angles appears to be quite a common
character in the genus, and it is undoubtedly the cause of the irides-
cence seen in iripennis, although in other species it does not have
that effect.

In the above-described male, the third and fourth ventral segments
are just perceptibly emarginate in the middle at apex, and the sur-
faces of the third, fourth, and tilth segments appear to be very feebly
flattened in the middle.

7. E. iripennis n. sp. — Form somewhat slender. Pubescence long,
fine, sparse, sub-recumbent. Color of head and pronotum dark reddish-
testaceous, of the elytra castaneous, of the abdomen paler reddish-testace-

20 THOS. L. CASEY.

0113 ; legs paler, antennae scarcely paler. Head moderate, just visibly wider
than Itmg ; eyes very small ; interocular surface coarsely, very closely and
evenly punctate, punctures round, shallow, sub-variolate, strongly outlined,
separated generally by less than one-half their own widths ; antennae
moderate, ninth joint scarcely wider than long. Prothorax slightly wider
than the head ; widest very slightly before the middle, where it is scarcely
one-half wider than long ; sides thence rather strongly convergent and dis-
tinctly arcuate anteriorly, very slightly more convergent and nearly straight
posteriorly ; anterior margin just perceptibly longer than the posterior,
equally arcuate ; surface strongly and evenly convex, very strongly, finely,
and evenly punctate, punctures round, rather deeply and roundly impressed,
interspaces as wide as ,the punctures, flat, and highly polished; just behind
the middle, and separated by a distance equal to one-third the width of the
pronotum, are two short, narrow, deep, longitudinal, and distinctly defined
canaliculations. Pllytra at base very slightly wider than the pronotum ;
sides rather feebly divergent posteriorly, slightly shorter than the width at
base, feebly and evenly arcuate ; together broadly, roundly, and feebly
emarginate behind ; suture equal in length to the pronotum ; disk rather
convex, extremely feebly and evenly punctulate, punctures round, separated
by one and one-half times their own widths, excessively feebly impressed,
nearly equal in diameter to those of the pronotum ; surface distinctly irides-
cent as in Selenophorus ; sutural striae very deep. First two abdominal
segments slightly wider than the contiguous elytra ; border very strong ;
surface minutely granulose and feebly lustrous. Legs moderate ; first joint
of posterior tarsi shorter than the next two together, fourth distinctly longer
than the second and third together, second joint longer than the third.

Mule. — Unknown.

Female. — Sixth ventral segment rather angularly rounded behind.

Length 1.1 mm.

Ross County, Oliio; one specimen.

Tliis little species may be recognized at once by the peculiar shape
of tiic prothorax, by the short canaliculations on its dorsal surface,
and liy tlie iridescence of the elytra; also by the tarsal structure. It
appears to be one of the most well-marked species of the genus.

8. E. texanus n. sp. — Form rather slender. Pubescence fine, rather
sparse, niixli'rate in length, recumbent. Body uniformly reddish-testaceous.
Head moderate, wider than long ; interocular surface rather strongly convex,
somewhat irregularly and sparsely punctured, along the middle usually im-
pnnctate : teeth of labrum nearly twice as long as their intervals asunder ;
eyes small ; antennae paler, nearly as long as the width of prothorax, joints
three, four, and five equal, sixth joint shorter and thinner, seventh suddenly
thicker tlian the third, nearly globular, eighth smaller, globular, ninth very
slightly larger than the seventli, transversely oval, joints ten and eleven
abruptly much thicker, two-thirds wider than the ninth, equal in width,
tenth transverse, eleventh as long as the two preceding joints together, finely
acuminate. Prothorax one-third broader than long ; sides parallel and feebly

NORTH AMERICAN COLEOPTERA. 27

arcuate for two-thirds tlie length posteriorly, then rapidly convergent and
distinctly sinuate ; anterior angles rounded, posterior very broadly rounded ;
disk evenly convex, highly polished, rather distantly, evenly, and finely
punctured, punctures round, somewhat feebly impressed, interspaces gener-
ally two or three times the width of the punctures. Elytra at base as wide
as the protliorax ; sides rather strongly divergent posteriorly, slightly shorter
than the width at base, feebly and evenly arcuate ; together broadly and
rather strongly emarginate behind ; sutiire about equal in length to the
pronotum ; sutural striae fine and close ; disk very feebly punctulate toward
the base, toward the apices it becomes almost absolutely impunctate, punctures
extremely feebly impressed, separated by twice their own widths. First four
abdominal segments equal in width to the contiguous elytra ; sides parallel
and slightly arcuate ; border strong ; surface very minutely rugulose, feebly
shining. Legs moderate, slightly paler ; first and fourth joints of the poste-
rior tarsi equal in length, first as long as the second and third together.
Prosternum rather strongly punctate in its anterior half.

Male. — Fifth ventral segment scarcely modified ; sixth segment narrowly,
deeply, and triangularly incised at apex.

Female. — Sixth segment rather acutely produced at apex.

Length 1.0-1.2 mm.

Columbus, Texas ; three specimens.

The above description was drawn from the female, the male being
in very poor condition.

The sexual characters are open to doubt, owing to the extreme
difficulty in seeing them, in a satisfactory manner, in the specimens
at hand.

9. E. ainericanus Er. — Form moderately slender. Pubescence short,
fine, semi-erect, evenly distributed, rather abundant. Color throughout
dark rufo-piceous, antennae and legs very slightly paler. Head slightly
wider than long, rather large; eyes small; interocular surface evenly con-
vex, strongly punctate, punctures round, sub-variolate, separated by their
own widths near the antennae, somewhat more crowded along the middle ;
there is usually a very narrowly impunctate line ; supra-antennal tubercu-
lations distinct ; labrum feebly arcuate anteriorly ; teeth rather short and
robust; antennae robust, longer than the width' of protliorax, third joint
distinctly longer than the fourth, fourth and fifth equal, sixth abruptly
much shorter, scarcely longer than wide, seventh more robust, very slightly
longer than wide, eighth of equal thickness, globular, ninth transversely
oval, much wider than the eighth, tenth as wide as long, two-thirds thicker
than the ninth, eleventh as wide as the tenth, as long as the two preceding
together, very finely acuminate ; last joint of the maxillary palpi longer than
the first two together. Prothorax scarcely one-third broader than long,
scarcely wider than the head ; sides sub-parallel and very feebly arcuate for
two-thii-ds the length posteriorly, then rather rapidly convergent and very
feebly sinuate ; anterior angles rounded ; anterior margin much longer and
less arcuate than the posterior ; surface very strongly punctate, punctures

28 TIIOS. L. CASEY.

deeply impressed, separated by their own widths, near the basal angles
agglomerated so as to form two distinct erosions. Elytra at base slightly
wider than the prothorax : sides feebly divergent posteriorly, feebly and
evenly arcuate, nearly as long as the width at base ; together broadly,
roundly, and very moderately emarginate behind ; suture as long as the
pronotum ; surface finely, evenly, and distinctly punctulate, punctures feebly
impressed, round, separated by twice their own widths, becoming slightly
more feeble posteriorly ; sutural striae strong, abdominal segments as broad
as the contiguous elytra ; border becoming nearly obsolete on the fourth and
fifth segments. Legs moderate ; first joint of the posterior tarsi very slightly
shorter than the next two together, much shorter than the fourth. Proster-
num very strongly punctured in its anterior half.

M,ih. — Fifth ventral segment very broadly and rather feebly emarginate
tliroughout its width at apex ; sides of emargination nearly straight, angle
at bottom slightly rounded ; sixth segment narrowly and extremely deeply
incised at apex, incisure five to six times as deep as wide.

Female. — .Sixth segment acutely rounded at apex.

Length 1.2-1.4 mm.

Michigan (Detroit, L. Sup.) 14 ; Cambridge, Mass., 3 ; Washington,
D. C, 1 ; Sand Pt., Fia., 1 ; Willets Pt., Long Id., 1 ; Delaware 1.

The above description was taken from the male, the female antenna
does not seem to differ greatly from that of the male ; the puncta-
tion of tlie elytra appears to vary slightly in degree.

111. £. atoniUS n. sp. — Form robust. Pubescence very fine, rather
short, very sparse, dark piceo-cinereous, inconspicuous. Color dark piceo-
fuscous, antennae, front of head and legs slightly paler. Head much broader
than long ; interocular surface broadly and moderately convex, highly
polished, very feebly and distantly punctulate toward the eyes ; broad
median line impunctate ; teeth of labrum nearly twice as long as the inter-
vals ; supra-antennal tuberculations rather small ; antennae very slightly
longer than the pronotum, joints three to six uniformly and gradually
decreasing in length, seventh thicker, very slightly elongated, sub-globular,
eightli smaller, globular, ninth very slightly wider than the seventh, broader
than long, last two joints abruptly much larger, last as long as the ninth
and tenth together; maxillary palpi moderate; mentura broadly and feebly
emarginate. Prothorax much wider than long; sides very rajndly divergent
and feebly sinuate for a very short distance posteriorly, then parallel and
nearly straight for a distance equal to nearly one-half the total length, then
strongly convergent to the base and very feebly sinuate ; anterior and poste
rior margins nearly equal in length and curvature, feebly arcuate ; posterior
angles broadly rounded ; disk highly polished, very feebly, distantly, and
irregularly punctulate, punctures very lightly impressed. Elytra at base
just perceptibly wider than the pronotum ; sides rather feebly divergent
posteriorly, evenly and moderately arcuate ; together broadly, roundly, and
moderately emarginate behind ; suture distinctly longer than the pronotum;
disk moderately convex, shining, wholly impunctate, more reddish in

NORTH AMERICAN COLEOPTERA. 29

color than the pronotum. Abdominal segments very strongly margined
throughont, finely reticulated, feebly convex, somewhat shining. First and
second joints of posterior tarsi equal in length, together as long as the last,
third joint much shorter than the first. Prosternum impunctate.

Male. — Fifth ventral segment very feebly and roundly emarginate in the
middle at the apex ; sixth segment narrowly and deeply sinuate at apex.

Female. — Sixth segment rounded behind.

Length 1.0-1.2 mm.

Sand Point, Tampa, and Cedar Keys, Florida ; seven specimens.

Tlie above description was drawn from a female, the males being
defective ; there seems to be very little sexual difference, other than
that observed in the abdominal segments, and a slightly more slender
form. The species is very distinct and one of the smallest of the
genus.

The mentum in Euresthetus is perfectly plane or very feebly undu-
lated on the exposed surface, and is not, like Stenus, ornamented with
a very conspicuous triangular cariniform elevation.

EDAPHUS Lee.

Dr. LeConte's description of the only species hitherto known in
this genus, runs as follows (Smith. Misc. Coll., 'G3-'66, p. 50).

£. IlitidllS. — Testaceus nitidus, glaber, laevis capite bi-impresso, thorace
latitudiue fere breviore, subcordato postice angustato, ante basin foveis 4
magnis insculpto ; elytria stria suturali vix conspicua. Long .04 (inch).

Alabama and Louisiana.

In the course of the remarks made upon this species, the author
states that the genus differs from Euaisthetus principally in the
smooth impunctured body. Since it is seen tliat we have species of
Euaesthetus, which are almost impunctate, more so in fact than the
two new species of Edaphus, to be subsequently described, it seems
preferable to state the ditierence between Edaphus and Euajsthetus as
follows : —

In the former the head between the eyes is strongly bi-impressed,
the labrum is not provided with teeth, the prothorax has several deep
foveae along the base, and the dorsal surface of the first ventral seg-
ment has a very narrow acute medial cai'ina throughout the anterior
half of its length ; while in Eusesthetus the comb-like row of teeth
of the labrum is a very marked feature, the head between the eyes is
perfectly even and convex, there is no transverse row of foveae near
the base of the pronotum, and the dorsal carina of the first ventral
segment is totally absent.

30 THOS. L. CASEY.

If the structure of the abdomen were not noted, it would be almost
impossible to distinguish the genus from some of those of the Pse-
laphida3.

Our tliree species may be distinguished as follows : —

Basal thoracic foveae four in number llitidllS.

Basal thoracic foveae six in number.

Prothorax having at the base a very distinct medial carina ; body rather
strongly pubescent cariliatllS.

Prothorax having no appearance of the medial carina ; puliescencc very
sparse; color pale luculentus.

I have seen no specimen of the first species, and the characters
employed rest entirely on the authority of Dr. LeConte.

E. carinatlis n. sp. — Form slender. Pubescence moderately close,
distinct, sub-recumbent, evenly distributed. Head small, slightly wider
than long ; interocular surface with two irregular and well-marked impres-
sions, jwrrected between the antennae, forming a transverse rounded eleva-
tion, under which the antennae are inserted ; labrum broadly and feebly
angulate anteriorly; antennae slightly shorter than the head and prothorax
together, first two joints equal and robust, next three much narrower, slightly
longer than wide, sub-equal, joints six to eight shorter, sub-globular, seventh
transversely oval, ninth shorter than the eighth, strongly transverse, tenth
abruptly more than twice as wide as the ninth, strongly transverse, eleventh
slightly wider than the tenth, longer than wide, having a distinct terminal
process ; maxillary palpi rather slender, third joint as long as the first two
together, fourth not visible ; mentum small, trapezoidal, surface Hat. Pro-
thorax much broader than the head, one-third wider than long ; sides for
two-thirds the length from the apex parallel and strongly arcuate, then
abruptly convergent behind and sinuate ; anterior angles rounded, posterior
acute ; apex much longer than the base, equally and feebly arcuate ; disk
impunctate, highly polished, strongly convex ; near each basal angle, and
in the middle at the base there is a very acute, short longitudinal carina
attaining the basal margin ; between each pair of carinae there are three
transversely disposed deep equidistant foveae. Elytra at base as wide as
the prothorax ; sides rather rapidly divergent posteriorly, slightly longer
than the width at base and feeblj- arcuate ; together broadly and very feebly
emarginate behind ; suture one-third longer than the pronotum ; disk con-
vex, very feebly and distantly punctulate ; sutural striae distinct Scutellum
excessively small. Abdominal segments as wide as the elytra, very strongly
margined, border al)ruptly much narrower, nearly obsolete, on the fifth
segment ; surface very convex, highly polished. Legs moderate; first three
joints of posterior tarsi decreasing in length, last much longer. Color
throughout the body dark red<lish -testaceous, legs paler ; integuments trans-
lucent.

Mtilt. — Sixth ventral segment very strongly emarginate at apex, emargi-
nation nearly evenly rounde<l, nearly as wide as the entire segment, and
alx)Ut two-thirds wiiler than deep ; seventh segment truncate at tii>.

NORTH AMERICAN COLEOPTERA. 31

J-emale. — Unknown.
Lengtli 0.9 mm.

Washington, D, C. (Schwarz).

The carinae of the pronotum are very strong, and will render the
species very easily recognizable.

E. lucilleiltlis n. sp. — Form slender. Pubescence extremely sparse,
almost totally absent from the pronotum. Head and antennae nearly as in
carinatus; labrum very broadly trapezoidal, broadly rounded anteriorly, where
it is fringed with very short whitish setae, and also with very long sparse
hairs ; third joint of maxillary palpi longer than the first two together.
Prothorax wider than the head, one-fourth wider than long ; sides as in
carinatus; anterior margin longer and more strongly arcuate than the poste-
rior, which is nearly transverse ; the two carinae at the basal angles are
distinct, the middle one is entirely obsolete ; parallel to the basal margin
and at a short distance from it, is a row of six very deep distinct impressed
foveae ; disk of pronotum impunctate and highly polished. Elytra at the
base slightly wider than the pronotum ; sides rather strongly divergent
l^osteriorly, longer than the width at base, rather strongly and evenly
arcuate ; together broadly, roundly, and feebly emarginate behind ; suture
one-fifth longer than the pronotum ; surface moderately convex, highly
polished, very minutely, distinctly, and extremely distantly punctulate ;
sutural striae distinct and very close ; surface of abdomen extremely highly
polished, nearly as in the preceding species. Legs moderate ; first three
joints of the posterior tarsi decreasing uniformly and very gradually in
length, fourth as long as the two preceding together. Color throughout very
pale testaceous, legs paler, last two joints of antennae distinctly darker.

Mule. — Sixth segment very broadly emarginate at apex, emargination as
wide as the segment, evenly rounded, and very feeble, fifteen to twenty times
as wide as deep ; seventh segment rather acutely rounded at- apex.

Female. — Unknown.

Length 1.0 mm.

District of Columbia (Ulke).

TYCHIJS.

T. testaceilS n. sp. — Form somewhat slender. Pubescence coarse, erect,
somewhat dense and long, shorter on the head and pronotum. Color uni-
formly reddish-testaceous, integuments translucent. Head, from front of
tuberculation to base, longer than the width across the eyes ; interocular
surface very convex, smooth, and highly polished ; eyes very small, semi-
circular; tuberculation large, median furrow very narrow; genae nearly
transverse behind the eyes ; antennae as long as the elytra and prothorax
together, first joint twice as long as the second, distinctly more robust, second
very slightly longer than wide, sub-cylindrical, joints three to eight sub-
equal, joints of club increasing uniformly in width, ninth one-third wider
than the eighth, ninth and tenth wider than long, eleventh nearly twice as
wide as the ninth, longer than the two preceding joints together, couoidal,

32 THOS. L. CASEY.

abruptly acuminate, very feebly narrowed toward the base; maxillary palpi
long, first joint cylindrical, very minute, second at base as wide as the first,
much the longest, for three-fifths its length it is very narrow, cylindrical,
and bent upward slightly, then suddenly expanding into a flattened, sub-
securiform club, third joint nearly one-half as long as the second, strongly
flattened and broadly securiform, widest in the middle, fourth joint one-half
longer than the third, flattened, strongly securiform, widest slightly behind
the middle, where it is three-fifths as wide as long, surface thickly covered
with 8hort erect setae, from the immediate apex protrudes a long slender
spine ; labrum twice as wide as long, very convex, transverse anteriorly,
sides very strongly arcuate and parallel. Prothorax widest in the middle,
where it is slightly broader than long and wider than the head ; sides thence
very strongly convergent and feebly sinuate anteriorly, rather feebly con-
vergent and nearly straight posteriorly ; anterior margin three-fifths as long
as the base; disk very convex, highly polished, and impunctate. Elytra at
l)ase as wide as the prothorax ; sides moderately divergent posteriorly, nearly
evenly and rather strongly arcuate ; together broadly and transversely trun-
cate behind ; suture one-half longer than the pronotum ; disk evenly convex,
striae two on each elytra, sutural continuous throughout, medial abruptly
ending just before the middle ; surface highly polished, impunctate ; humeri
rather liroadly rounded. Abdominal segments arcuately and rapidly decreas-
ing in width, not as long as the elytra, strongly bordered ; surface highly
polished. First joint of posterior tarsi very short, second and third of equal
length. Length 1.5 mm,

Cambridge, Mass.; Trenton Falls, N. Y. ; Ann Arbor, ^lich.
(Scliwarz).

Appears to be wklely distributed and not uncommon. Reitter, in
the " Insecten Deutschlands," says that the third joint of the maxil-
lary palpi in the genus Tyclius is '"■ very small, scarcely visible."
Tiiis is certainly not the case with the North American representa-
tives of the genus, as in all of our species, which I have examined,
the third joint is very fully developed, and in 7'. hngipalpus Lee. it
becomes nearly as long as the second joint.

BRYAXIS.

B. graciliti n. sp. — Form rather slender. Pubescence very long, rather
abundant, erect, setiform, pale fulvo-cinereous, prominent, less dense on the
pronotum. Head moderate, length from clypeus to base but very slightly
greater tiian width across the eyes, which are small, very prominent, and
nearly ht-mispherical ; genae distinct, equal in length to the eye ; interocular
surface moderately convex ; the three foveae are at the apices of an equi-
lateral triangle, they are prominent, almost exactly equal, circular, im-
pressed, and spongy at the bottom ; antennae as long as the head and pro-
thorax together, first joint indented above to fit the supra-antennal tubercle,
second joint very slightly smaller, remaining joints to the ninth more slender,
sub-cylindrical, equal in thickness, ninth slightly larger, very slightly

NORTH AMERICAN COLEOPTERA. 33

broailor than long, tenth nearly twice as wide as long, one-half wider tlian
the nintii, eleventh nearly as long as the four preceding joints together, twice
as wide as the ninth, slightly constricted at the base, wliich is transversely
truncate, obliquely conoidal, feebly acnminate at the tip ; labrum twice as
wide as long, transversely and very feebly emargiuate at apex, rectangular.
Prothorax much wider than long, suddenly and strongly swollen at tlie
middle ; sides rather strongly convergent posteriorly and very feebly sinuate ;
disk very convex, not punctate, polished ; lateral foveae well developed,
impressed, circular, slightly behind the middle, spongy at the bottom ;
medial fovea in the form of a very minute, deeply impressed puncture, cir-
cular, very near the basal line, bottom not spongy. Elytra at base slightly
narrower than the prothorax; sides strongly divergent posteriorly, three -
fourths longer than the width at base, and rather strongly arcuate ; together
transversely truncate behind ; apical angles very slightly produced poste-
riorly, disk very convex, highly polished ; two longitudinal striae upon each
elytron are very distinct. Dorsal segments strongly margined ; surface highly
polished, first segment having two short, minute, elevated carinae, which
diverge from the extremities of a transverse ciliated patch, nest to the elytra ;
first segment as long as the next two together. Last ventral segment having
a large, transversely oval impression, distinctly defined, though rather
shallow, last dorsal emarginate at tip, emargination evenly rounded, and
about three times as wide as deep. Last joint of maxillary palpi nearly as
long as the first three together, robust, and finely acuminate. First joint
of posterior tarsi rather short, second but slightly longer than the third.
General color bright rufous, more or less clouded with castaneous, abdomen
much darker, nearly piceous-black. Length 1.4 mm.

Detroit, Michigan (Schwarz).

This fine species appears to belong near ruhicunda. The last
ventral segment is very broadly emarginate in the latter, and is
narrowly and rather strongl}^ so in the present species. It should,
perhaps, come just before triyona in Dr. LeConte's latest tabular
arrangement of this genus.

B. iiiopia n. s^j. — Form very robust. Pubescence very short, evenly
distributed, recumbent, pale piceo-cinereous, slightly more sparse on the pro-
thorax and longer on the abdomen. Head as broad across the eyes as long ;
inter-antennal carina rather distinct, angulated anteriorly ; immediately
behind this there is a very large, transversely oval, somewhat strong and
distinctly defined impression ; on a line through tlie middle of the eyes, there
are two distinct, rather widely separated, circular, impressed foveae ; inter-
ocular surface polished and impunctate ; antennae one-half as long as the
body, basal joint very slightly larger than the second, third distinctly longer,
much more slender, equal in length to the fifth, fourth distinctly shorter,
fourth, sixth, and seventh joints equal, eighth smallest, slightly longer than
wide, cylindrical, ninth slightly thicker and more clavate than the eighth,
tenth nearly twice as wide as the ninth, as broad as long, eleventh as long
as the three i3receding joints together, nearly twice as long as wide, obliquely
Published August, 1884. 3

34 TIIOS. L. CASEY.

oonoidal ; labrum very small, twice as wide as long, not emarginate. Pro-
tliorax as wide as head ; base very slightly longer than apex ; slightly broader
than long ; sides strongly and evenly arcuate ; lateral foveae large and cir-
cular, median basal fovea very minute, nearly obsolete ; disk very convex,
polished, impunctate. Elytra at base distinctly wider than the prothorax ;
sides rather strongly divergent posteriorly, distinctly longer than the width
at base, evenly and somewhat strongly arcuate ; together almost transversely
truncate behind, sliglitly sinuate in the middle ; disk impunctate, evenly
convex ; two distinct, finely impressed striae extend nearly throughout the
length on each elytron, one very close to the suture, the others, beginning
at the base, slightly nearer the humeri than the suture, are strongly arcuate
externally, and approach the suture toward the apices ; suture one-third
longer than the width at l)ase ; humeral angles rounded. Abdominal seg-
ments strongly, though narrowly margined, impunctate, polished ; strongly
convex, tirst segment nearly as long as the remainder together. First joint
of the posterior tarsi very short, second much longer than the third. General
color rnfo-testaceous, transverse baud at apices of elytra, slightly darker than
the remainder of the disk. Length 1.2 mm.

Sand Point, Florida; February (Schwarz).

From tonientosa this species differs by Laving distinct impressions
on the head. Tlie first segment has, at the base, two very short
feeble distant carinae which are nearly parallel.

CARPOPHILIS.

<_'. ZUlii n. sp. — Form elongated, depressed. Pubescence moderately
long, very line, recumbent, sparse, more plentiful toward the borders of the
elytra. Color above dark piceo-castaneous, beneath same except the abdo-
men, legs, oral organs, inflexed sides of the pronotum and antennae which
are paler and more rufous. Head broader across the eyes than long ; inter-
ocular surface feebly convex, minutely punctulate and rugulose, shining ;
labrum deeply cleft, bilobed ; supra-anteunal tuberciilations moderate ; near
them there are very feeble impressions in the interocular surface ; eyes small,
nearly semicircular ; antennae as long as the prothorax, first joint large,
feebly elongated, second shorter, scarcely one-half as wide, suddenly enlarged
at its distal extremity, third nearly as long as the second, much less robust,
joints four to six much shorter, nearly cylindrical, sub-equal, seventh sub-
globular, eighth smaller, slightly transverse, joints of club abruptly very
large, strongly fiattened, very minutely pubescent; antennal grooves well
developed ; extreme tip of maxillary palpi black ; meutum minutely and
trapezoidally emarginate. Prothorax one-half wider than long, width at
base and apex equal; sides arcuate, sinuate just before the basal angles;
anterior angles aiule, posterior nearly right ; disk evenly and very moderately
convex, minutely, feebly, and very closely punctulate ; sides finely mar-
gined ; lateral borders strongly reflexed. Scutellum large, cordate, acute.
Elytra at base as wide as the prothorax ; sides parallel, very feebly arcuate ;
together broadly, roundly, an<l ratlier strongly emarginate behind ; suture
nearly tliree-fourths longer than the pronotum ; surface feebly convex, finely

NORTH AMERICAN COLEORTERA. 35

and feebly piinctulate ; margin reflexed as in the protliorax, but nuicb
more narrowly and acutely. Dorsal surface of tlie last ventral segment
having three strong, posteriorly convergent, rounded carinae ; last segment
and the posterior two-thirds of the penultimate exposed. Legs short and
robust ; terminal joints of tarsi very slender, longer than the preceding joints
together. Length 3.1 mm.

Arizona (Morrison).

The reflexed margins of tlie pronotum and elytra render this a very
distinct and easily recognized species.

Although T believe the type specimen to be a male, tiiere is no trace
of the additional ventral segment of the abdomen mentioned by Dr.
Horn in his revision of the Nitidulidce ; however, tiie formation of a
new genus seems scarcely warrantable. I see no mention of the very
distinct dorsal ridges of the last abdominal segment, in any of the
descriptions of the species of Carpophilus in the above-mentioned
work.

EPURtEA.

E. papagona n. sp. — Nearly twice as long as wide, moderately convex,
piceo-tlavate in color ; pubescence fine, moderate in length, evenly distributed,
recumbent, rather sparse. Head much wider than long ; interocular surface
very feebly and evenly convex ; labrum twice as wide as long, strongly and
acutely emarginate in the middle anteriorly ; eyes moderate in size, nearly
semicircular, coarsely granulated; antennae as long as the width of head,
third and fourth joints very slender, the former much the longer, fifth much
more robust, sixth slightly elongated, seventh sub-globular, eighth very
short and transverse, club very large, flattened, nearly one-third as long as
the entire antenna. Prothorax twice as wide as long, wider anteriorly than
the head ; sides moderately divergent posteriorly and evenly arcuate to a
point one-fifth the length from the base, where they become convergent and
strongly sinuate ; anterior and posterior angles prominent ; basal margin
transverse and nearly straight ; disk feebly and evenly convex, slightly
reflexed at the sides. Scutellum much broader than long, triangular. Elytra
at base as wide as the prothorax ; sides parallel and feebly arcuate for two-
thirds their length, then slightly convergent ; each elytron very obtusely
rounded behind ; disk rather strongly convex at the sides, feebly and nar-
rowly reflexed along the exterior edges. Legs moderate, of same color as the
body, somewhat slender ; last joint of the posterior tarsi as long as the first
two together. The prosternura is depressed behind the coxae, and prolonged
backward in a spatula-like process, which is wider than long and ciliate
posteriorly. The punctures of the entire dorsal surface of the body are
rather close, circular, clearly defined but very shallow, variolate ; the punc-
tures are uniformly setigerous. Length 2.5-2.8 mm.

Arizona (Morrison).

The sides of the pronotum are convergent and sinuate near the
basal angles to an unusual degree.

30 THOS. L. CASEY.

E\\EARTIIRO\.

E. califOl'UiCUm n. sp. Male. — Form elongated, nearly cylindrical,
sides parallel. J'ube.scence excessively short, erect, rather sparse, evenly
distrihuted ; pale piceo-Uavate in color. Head moderate, trapezoidal, dis-
tinctly wider than long ; clypeus strongly retlexed anteriorly and distinctly
eraarginate ; interocular surface impunctate, having in the middle a small
feeble tuberculation ; eyes small, very prominent, more convex posteriorly ;
antennae as long as the width of prothorax, pale piceo-fiavate, first joint
robust, oval, second slightly smaller, third much narrower and longer, nearly
as long as the next three together, club large, loose, joints of equal width,
increasing in length, last joint strongly flattened ; labrum small, very pale,
not emarginate. Prothorax very slightly longer than wide, much narrower
anteriorly than posteriorly, very slightly constricted behind ; sides evenly
arcuate ; base broadly and feebly arcuate ; anterior angles very broadly
rounded, posterior right; disk very convex, prolonged anteriorly in a very
thin process, more than three times as wide as long, which is strongly and
roundly emarginate anteriorly, giving the appearance of two short rounded
teeth ; entire pronotum minutely, distinctly, closely, and very evenly punc-
tate. J?cutellum small, wider than long, triangular. Elytra at base very
slightly narrower than the prothorax ; humeral angles well developed ; sides
parallel and feebly arcuate ; together three-fourths longer than the pronotum,
very evenly rounded behind ; disk very convex, uniformly, feebly, closely,
and rather confusedly rugulose. Legs short and robust. Body above and
below uniformly of a very dark blackish-castaneous ; legs, gula, npper sur-
face of head pale reddish-testaceous.

Female. — Clypeus evenly rounded anteriorly, very feebly reflexed ; surface
of head feebly and very minutely punctulate, without the tubercle of the
male, and, in its place, a very feeble impression. Prothorax without the
anterior corniform prolongation, evenly arcuate anteriorly, distinctly longer
than wide. Elytra at base as wide or just perceptibly wider than the pro-
thorax. Otherwise nearly as in the male. Length l.U-l.S mm.

Tliis species appears to be di-stinct from the Cis vituhts of Manner-
lieim. Tlie following is the descri[)tion of that species as given by
liini in the Bulletin of Moscow: —

"O's vituhts: Oblongus, fusco-piceus, punctulatus, pube brevissima
ri,L'i*la adspersus, capite excavato, margine antico quadridentato,
tlioraee a[)ice cornubus duobus antrorsuni porrectis arniato, antennis
pedibustpie rufo-testaceis.

" Long IJ lin., lat. f lin. California."

It will be seen, if we analyze this very abbreviated diagnosis, that
the only characters which are of any positive value, differ very greatly
from the corresponding ones in the insect under consideration.

The color of ^Mannerheim's species appears to be much paler, and
lie describes it as oblong, while coh'fornicum is decidedly elongated.

NORTH AMERICAN COLEOPTERA. 37

The words, " thorace apice cornnhns dnohus antrorsii.7n pori-ectis
armato,^' convey the idea that there are two distinct horns, similar
to those observed in Ceracis, while, as can be seen from tlie descrip-
tion, this process in californicum is rather a thin, transverse, semi-
erect lamina, which is deeply emarginate at the apex and very short.
The length of Cis vituJus is given as twice the width, while in the
present species the length is two and three-fourths times the breadth.

Finally, and especially the head being 4-dentate anteriorly in Man-
nerheim's insect, leads me to believe that it may even belong to a
different genus. We are, therefore, seemingly brought to the conclu-
sion, that, if the description of that author is of any value at all, it
must be that of some other species than the one described above.

The species seems to resemble E. Mellyi of Mellie ; it is, however,
much larger, and differs in many minor characters.

It occurs in California, and is found abundantly in the parasitic
fungus of the laurel.

E. llliicolor n. sp. Male. — Form rather elongated, cylindrical, sides
parallel. Pubescence excessively short, rather sparse, erect, evenly distri-
buted, somewhat pale and scarcely visible. Head wider than long ; inter-
ocular surface concave ; anterior margin strongly reflexed into a position
nearly perjiendicnlar to the interocular surface ; anterior edge somewhat
angularly and rather strongly emarginate ; labrum very small, nearly as
long as wide, rounded in front. Prothorax slightly broader than long, very
feebly constricted at the base ; sides evenly arcuate ; anterior angles almost
obsolete, posterior right ; base very broadly, feebly, and evenly arcuate ;
disk very convex, very minutely reticulated, finely, distinctly, and very
evenly punctate ; anterior portion prolonged in a process nearly as long as
wide, so deeply cleft anteriorly as to give rise to two divergent horns of cir-
cular cross-section, slightly rounded at tip, and nearly twice as long as broad
at base. Scutellum slightly wider than long, triangular, sides feebly arcuate.
Elytra at base as wide as the prothorax ; sides parallel and very feebly
arcuate ; together nearly twice as long as the pronotum, exclusive of the
horns ; broadly rounded behind, more acutely so at the immediate apex ;
disk very finely punctulate, and, in addition, confusedly and feebly rugulose,
polished. Legs very short and robust ; last joint of anterior tarsi twice as
long as the preceding Joints together. Antennae very short, scarcely as long
as the width of head, club large, first joint distinctly larger than the second,
third as long as the next two together, fourth, fifth, and sixth joints nearly
globular, very small, fifth slightly the largest, seventh and eighth joints
much broader than long, last nearly as long as wide and flattened. Entire
body piceous-black, legs very dark rufo-piceous, antennae and oral organs
piceo-testaceous, club of antennae slightly darker, central portions of gula of
a slightly more reddish tint than the legs. The first ventral segment bears
in the middle, what appears to be a very minute ciliated tuberculation. The
tibiae are not dentate outwardly at the tip, but are provided with a row of
very short, robust spines of a much paler tint. Length 1.3 mm.

38 TIIOS. L. CASEY.

Willets Point, Long Island ; three specimens % .

The female is unknown. The specimens were found in the lamellar
parasitic fungus, growing upon the bark of an old chestnut log in a
thick wood. The species is very distinct, and does not satisfy any
description which is accessible to me ; I therefore feel warranted in
describing it as new. The abdominal segments are almost exactly
equal in length.

LACHXOSTERXA.

Ij. sil1>pi'Uiiiosa 11. sp. — Form moderately elongated and depressed,
about twice as long as wide. Color fuscous, slightly paler beneath, elytra
slightly paler than the pronotum, and having a very feebly prninose appear-
ance. Head twice as wide as long, punctures rather evenly distributed,
separated by slightly more than their own diameters ; epistoma broadly and
feebly bilobed, episternal suture distinct and broadly bisinuate ; club of
antennae in its greatest dimension longer than the entire preceding portion.
Prothorax slightly more than three-fourths wider than long, glabrous, fully
one-half wider at base than at apex ; sides strongly divergent and nearly
straight to the middle, then parallel and feebly sinuate to the posterior
angles ; anterior and posterior angles acute ; apex transverse and feebly
undulated, base broadly and feebly arcuate; disk rather strongly convex;
narrowly margined along the sides and anterior edge, not margined poste-
riorly ; punctures very small, impressed, rather evenly distributed, generally
separated by more than twice their own widths. Scutellum wider tliau long,
parabolic. Elytra at base very slightly wider than the prothorax ; sides
very slightly divergent and very feebly arcuate for three-fourths the length
from the humeri ; disk two and one-half times as long as the head and pro-
thorax together, nearly one-half longer than wide, very abruptly and obtusely
rounded behind ; very narrowly margined at the sides, border becoming
extinct posteriorly ; surface finely and irregularly punctured, punctures
impressed, setigerous, and separated by from one to five times their own
widths ; longitudinally costate along the suture, more strongly so posteriorly ;
each elytron has in addition several very feeble, narrow, and indefinite sub-
oblique or longitudinal costae. Legs rather long ; posterior tarsi much longer
than the tibiae, first and fourth joints shortest, nearly equal in length.
Pygidinui nuuh broader than long, irregularly and finely punctate. Length
14..') mm.

Atlantic States.

Tlio male has a rather feeble impression on the last ventral seg-
ment, which extends to a part of the penultimate. The pubescence
of the mesosternum is long and dense. The species bears a remote
resemblance to mirans Lee, but is much less elongated, paler in
color, and much less pruinose.

Li. fusca (FriJld) — CMvat and apparently unnecessary confusion
exists in regard to this and closely allied species, and I find at least

NORTH AMERICAN COLEOPTERA. 39

five forms united under tliis name in my cabinet. It is somewhat
difficult to decide upon characters which are specific and not sexual,
and since the antennae ditter so greatly with sex, we are comfielled
to throw out this organ, generally so valuable for purposes of classifi-
cation. If we examine attentively the males and females of a very
well-marked species, in which there can be no suspicion of mixture,
we find that the claws of the tarsi do not vaiy with sex, as can be
observed in ilicis (Knoch) ; also that, if we imagine a tangent line to
be drawn to the curve of the epistomal edge at the points where this
line meets the eyes, the degree of convergence of these tangent lines
is almost exactly constant for the same species, irrespective of sex;
other characters wliich are almost constant are the proportional
lengths of the palpular joints, the punctuation and sculpture of the
body, and the shape of the pygidium. With these premises we can
formulate the following differences for a few distinct species which
have been combined under the name indicated above.

L.. auxia Lee. — This is distinct by reason of the peculiar formation of the
ejtistoma, the above-mentioned tangents being parallel ; the pygidinm is very
short in proportion to its width ; the sculptni e is coarse and rough ; the inner
tooth of the ungues is very long and strong, nearly equal to the remainder
of the claw.

li. Drakei Kirb. — Body very robust, rather depressed : sculpture very
even, fine; general appearance smooth. The tangent lines of the clypeus
mutually make a very obtuse angle, and the epistoma anteriorly, instead of
being broadly sinuate, is notched in the form of an acute cusp, and is more
properly bilobed. This is a distinct species in facies.

li. coiisiiuilis Lee. — The facies of this species is different from that of
fiisca, being much more elongate ; the sculpture is smoother and finer ; the
epistomal tangent lines make a very obtuse angle, meeting at a distance in
front of the elypeus scarcely greater than the length of the head.

Li. fusca (Frtihl). — The sculpture is rough and uneven, more so than in
any other of this group, except anxia; the claws are also very diflerent from
those of the three preceding forms, the inner tooth being very small and the
remainder of the claw projecting very far beyond it, and with a less arcuate
curve ; the whole claw is also more slender. The epistomal tangents inter-
sect at a distance from the anterior margin about equal to the length of the
head and prothorax together.

The series of specimens of these species which are before me are
scarcely large enough to enable me to define the species properly, but
enough has been mentioned to show that the various forms should not
be combined until a series can be formed, showing unmistakably a
gradual progression from one species to another, in all characters

40 TIIOS. L, CASE-J.

jtointed out above to be of systematic importance. Besides tb.e differ-
ences noted above, there are variations to be observed in tl)e length
of the antennal club in the males, and in the structure of the labial
and maxillary palpi.

There is anotlier form in which the sculpture is much smoother
than in fnsca, and which differs from that species in the much nar-
rower and more feebly toothed anterior tibiae ; also in the smaller
inner spine of that member.

EURYItlETOPOX.

E. piceiim n. sp. — Form moderately elongated, very convex, sides
nearly parallel ; setae of elytra so fine and sparse as to be scarcel3- discern-
ible. Body above and beneath rather pale rufo-piceous, elytra slightly
paler than the head and protliorax. Head much broader than long ; anterior
margin very broadly and evenly arcuate ; interocular surface rather convex
posteriorly, then rapidly declivous to within one-third the length of the
anterior margin, where it becomes nearly plane and feebly declivous ; very
coarsely, rather closely and unevenly punctate, punctures round and vario-
late ; supra-ocular longitudinal ridges very acute and distinct ; antennae as
long as the width of protliorax, second joint slightly more than one-half as
long as the third, third and fourtli narrower and equal in length, remaining
joints nearly equal in length, last three Hattened and slightly broader. Pro-
thorax four-lifths broader than long ; base very broadly and just j>erceptibly
angulate posteriorly, just visibly longer than the apex ; the latter transverse
and straight in the middle, slightly sinuate near the apical angles, slightly
longer than tlie width of head ; sides most strongly arcuate just in advance
of the middle, nearly straight near the basal angles, much more convergent
near the anterior angles ; disk very convex, narrowly margined at the sides,
margined along the base, border becoming much narrower toward the basal
angles ; coarsely and very irregularly punctate ; near the sides the punctures
are very large, somewhat conHueut, shallow, and variolate, in the middle
they are very much smaller, round, rather deeply impressed, and very sparse.
Scutellum very small, sides at first divergent posteriorly, then very broadly
angulate behind. Elytra at base as wide as the pronotum ; sides just per-
ceptibly divergent and feebly arcuate for three-fourths the length ; disk
somewhat acutely rounded behind, three times as long as the protliorax,
very convex, evenly punctate, punctures round, shallow and variolate,
small, and separated generally by three to four times their own widths ;
toward the sides, and more especially toward the humeri, the punctures
become much larger and closer ; the entire surface is also excessively feebly
and transversely rugulose. Under surface of the abdomen very sparsely and
minutely punctulale toward the base, much more strongly, coarsely, and
closely so on the last segment. Legs moderate ; tarsi long, posterior femora
rather rapidly narrowed toward the coxae ; first joint of the posterior tarsi
equal in length to the next two together, distinctly shorter than tlie fourth.
Prosternum deeply and irregularly pitted. Length 6.2 mm.

NORTH AMERICAN COLEOPTERA. 41

Arizona (Morrison).

Tlie mentum in this species is very large, strongly rounded ante-
riorly, with a very short, rounded, and somewhat feeble eniargination
at the immediate apex ; its exposed surface is deeply and closely
punctate. There is but one specimen before me, but it appears to be
very distinct from any with which it has been compared. The punc-
tures of the elytra, although equidistant among themselves, can, in
the middle of the disk, be very readily caused by the eye to arrange
themselves in striae-like rows.

E. emargiliatum n. sp. — Form rather elongated, convex ; pubescence
almost entirely absent from the head and pronotum, on the elytra it consists
of erect, coarse, evenly distributed, and sparse setae, which are piceo-cinere-
ous in color ; general color of the body dark piceous-brown, nearly black
above, very slightly paler beneath, antennae and legs extremely dark rufo-
testaceous. Head moderate, slightly wider than long ; interocular surface
very convex between the eyes, then broadly declivous, becoming transversely
and very feebly ridged just behind the anterior margin, the latter squarely
truncate in the middle, rounded at the sides ; punctures of head very sparse
in the middle, denser toward the sides, very dense and deeper near the
anterior margin ; supra-ocular ridges rather short but very distinct ; labrum
just visibly emarginate in the middle, provided anteriorly with a dense fringe
of porrected setae, broadly rounded at the sides ; antennae as long as the
anterior width of prothorax, third joint just visibly longer than the fourth,
joints five to seven shorter, sub-equal, joints eight to ten wider, flattened,
sub-triangular, increasing in size, ninth and tenth notched at the apex,
eleventh longer than wide, narrower, regularly oval. Prothorax nearly
twice as wide as long, base just perceptibly longer than the apex, evenly
and feebly arcuate at the sides, broadly and very feebly emarginate through-
out anteriorly, very feebly trisinuate posteriorly ; anterior and posterior
angles very acute ; disk very convex, feebly and rather closely punctate ; at
the sides the punctures become longer, more shallow, closer, and more vario-
late. Scutellum as in E. piceum. Elytra at base just perceptibly wider than
the base of the pronotum ; sides very feebly divergent and nearly straight
for three-fourths of the length from the humeri ; disk very convex, more
than three times as long as the prothorax, rather acutely rounded behind,
very feebly and narrowly impressed on the suture toward the base, feebly
and minutely punctate ; punctures sparse, nearly evenly distributed, easily
caused to form striae-like rows by the eye, very feebly impressed ; the entire
disk is also finely, rather strongly, and transversely rugulose. Under sur-
face of the abdomen finely punctate, much more closely so on the last segment ;
prosternum coarsely pitted, much more sparsely so in the middle. Legs
moderate ; first and last joints of the posterior tarsi equal in length, slightly
longer than the second and third together. Length 6.0 mm.

Arizona (Morrison).

The mentum of emarginatiim is very large, coarsely, and closely
punctured, broadly rounded anteriorly, except for a space at the apex

42 TIIOS. L. CASEY.

equal to nearly one-half its width at base, which is broadly, evenly,
and rather feebly emarginate. The front tibiae are strongly prolonged
anteriorly in both this species and in piceum; in the latter species
the interior terminal teeth are slightly curvate, and are arranged in
a right line with the point of juncture of the first tarsal joint ; in the
present species, however, they are in a straight line, which is at right
angles to that position.

In the present chaotic state of this portion of the Tenebrionidae
it seems scarcely warrantable to generically separate these species, so
very similar in facies, on such a trivial character. The punctures of
the head in the above-described species are very shallow and variolate.

E. papagoiium n. sp. — Form rather strongly elongated, couvex ;
puliesoeuce of elytra consisting of exceedingly short and sparse, erect setae,
which are rather fine and arranged serially ; general tint of upper surface
piceoiis-black, under surface slightly paler, rufous, legs and antennae rufous.
Head distinctly broader than long ; punctures of upper surface round, nearly
evenly distributed between the eyes, raoj-e closely crowded anteriorly, vario-
late, separated usually by their own widths ; anterior margin transverse or
just perceptibly emarginate in the middle, broadly rounded at the sides ;
labrum transversely truncate in the middle, sides divergent and slightly
arcuate, lateral angles rather pronounced ; supra-ocular ridges strongly
developed and curving outward anteriorly ; antennae distinctly longer than
the anterior width of prothorax, third joint distinctly longer than the fourth.
Prothorax four-fifths wider than long ; anterior margin just perceptibly
shorter than the base, the latter transverse and distinctly trisinuate, the
former just perceptibly emarginate, sinuate near the apical angles ; anterior
and posterior angles very acute ; sides feebly arcuate, straight near the apical
angles ; disk very convex, rather distantly and finely punctate in the middle,
where the punctures are impressed, becoming much larger, shallower, and
elongated at the sides, where they are closely crowded, variolate, and scab-
rous ; pronotum margined anteriorly and posteriorly, narrowly rellexed at
the sides ; edges acute. Elytra at base slightly wider than the contiguous
pronotum ; sides nearly parallel and almost straight for three-fourths of the
lengtli from the humeri ; disk very convex, more than three times as long as
the pronotum, rather acutely rounded behind, minutely, feebly, and evenly
punctate in the middle, punctures arranged in rows, larger and closer at the
sides, shallow, round, and variolate ; the surface is also minutely and irregu-
larly creased, minutely granulose, minutely undulated, and, at the sides,
covered with minute elevated points ; shining. Under surface of the abdo-
men minutely punctate, very closely so on the last segment ; prosternum
coarsely punctured. Legs rather long; first joint of the posterior tarsi dis-
tinctly shorter than the last, longer tlian the second and third together, the
latter equal in length. Length (3.5 lum.

Arizona (IMorrison).

The mentum of this species is broadly rounded in front, with ex-
ception of a sinuation at the immediate apex, equal in length to one-

NORTH AMERICAN COLEOPTERA. 43

fourth its width at base, wliich is rather strong ; the exposed surface
is strongly punctured and more distantly so than in either emargi-
natitm or piceum ; the terminal spurs of the anterior tibiae are arranged
as in the former species.

E. carbonatlim n. sp. — Form moderately robust caiid convex, sides
parallel ; body devoid of setae iu tlie middle, at the sides of the elytra there
are a few widely scattered, robust hairs ; body black above, beneath the
abdomen is nearly black, the anterior portions paler, legs, antennae, and
mentum paler. Head much broader than long, punctures rather large,
round, variolate, evenly distributed, separated by less than their own widths ;
lateral sutures of epistoma distinct ; supra-orbital carinae well developed ;
anterior margin broadly and extremely feebly emarginate, sides broadly
rounded ; labrum rather feebly but distinctly emarginate, sides broadly
rounded ; antennae moderate, second joint two-thirds as long as the third,
third one-third longer than the fourth. Prothorax nearly twice as wide as
long ; anterior margin very slightly shorter than the base, tlie latter nearly
transverse, distinctly trisintiate, apex very feebly emarginate ; sides feebly
and evenly arcuate throughout ; anterior and posterior angles acute and
prominent ; disk distinctly margined anteriorly and posteriorly ; sides nar-
rowly reflexed, edges acute : punctures in the middle rather deeply impressed
and irregularly scattered, toward the sides becoming larger, more elongated,
closer, more shallow, and scabrous. Scutellum very minute. Elytra at base
very slightly wider than the contiguous pronotum ; sides parallel and almost
exactly straight for three-fourths the length from near the humeri ; disk
broadly convex, acutely rounded behind, more than three times as long as
the pronotum ; punctures very small, shallow, round, variolate, arranged in
very closely approximate rows, rather more distant in the rows than between
them, near the suture the rows become somewhat broken up and irregular;
the surface is minutely undulated, and near the suture the transverse
creases are very indistinctly apparent ; it is not visibly granulated, shining.
Under surface of abdomen finely punctate, punctures of the last segment
nuicli more closely crowded, very dense ; presternum sparsely, coarsely, and
evenly punctate. Legs moderate ; posterior tarsi shorter than the tibiae,
first joint slightly longer than the fourth ; first joint of the anterior tarsi
longer than the next two together. Last joint of maxillary palpi flattened
and strongly securiform. Length S.O mm. ; width 2.8 mm.

Arizona (Morrison).

The mentum is emarginate at apex ; the emargination is more
acutely rounded at bottom than at the sides, is rather strong, and
one-third as long as the width of the mentum at base ; the anterior
angles are broadly rounded, the exposed surface is strongly and
rather finely and closely punctate ; it is also rather feebly rugulose.
Mandibles strongly and unequally notched at tips. The terminal
spurs of the anterior tibiae are straight, strong, equal, and arranged
as in emarginatiim.

44 TIIOS. L. CASEY.

E. scillptile 11. sp. — Form slender, nearly semi-cylindrical, sides
parallel ; erect setae of elytra excessively short and sparse, scarcely visible ;
Color of upper surface piceous-black, beneath very dark piceous-brown, nearly
black, with a tinge of rufous ; legs and antennae just perceptibly paler.
Head moderately convex, transversely and feebly impressed in front of the
eyes ; anterior margin transverse, sides rounded ; punctures somewhat
deeply impressed and scattered in the middle, closer elsewhere; supra-
orbital ridges distinct ; labrum squarely truncate in front, sides widely
divergent posteriorly and nearly straight, anterior angles well developed ;
antennae moderate, third joint much longer than the fourth. Prothorax
three-fourths wider than long ; sides strongly and evenly arcuate ; apex
distinctly shorter than the base ; apical and basal angles very acute and
prominent ; apex feebly emarginate in the middle, nearly throughout its
width, base distinctly trisinuate, nearly transverse ; disk very convex, dis-
tinctly margined anteriorly and posteriorly ; sides narrowly retlexed, edges
acute ; punctures small and impressed in the middle, larger, shallow, oval,
somewhat confluent, and scabrous at the sides. Scutellum minute and trans-
verso, angulate behind. Elytra at base slightly wider than the contiguous
pronotum ; sides parallel and very feebly arcuate for two-thirds the length
posteriorly ; disk very convex, acutely rounded behind ; punctures arranged
in rows, rather distant, moderately large, very shallow, variolate, round ;
there are also several elongated, striae-like impressions near the suture, and
the surface is minutely, irregularly, and very distinctly creased, minutely
undulated, and very minutely granulated ; sculpture more rough near the
sides, which are very feebly reflexed. Under surface of the abdomen finely
and nearly evenly punctate ; prosternum more coarsely punctate. First
joint of the posterior tarsi scarcely longer than the next two together, dis-
tinctly shorter than the last. Length 6.0 mm.; width 2.3 mm.

Arizona (Morrison).

Tlie sculpture of tlie elytra is very composite and strongly developed.
The nientum.is emarginate at apex through a length equal to about
one-tiiird its width at base ; emargination most strongly rounded at
the bottom, anterior angles well rounded ; exposed surface strongly
puncfate and transversely rugulose. The prothorax is much more
strongly arcuate at the sides and more convex than in pupayomini,
which this species somewhat resembles ; it is more slender than that
species.

E. flllbillin n. sp. — Form rather robust, sides parallel ; moderately con-
vex ; lii'.ul anil prothorax glabrous, elytra having very sparse, robust, erect
setae, which are more plentiful at the sides ; color piceous-black above and
beneath, legs rufo-piceous, antennae and palpi same. Head much broader
tiian long ; interocular surface moderately convex, moderately declivous in
front of the eyes, transversely and feebly ridged just behind the anterior
margin ; the latter broadly truncate, rounded at the sides ; punctures round,
varying in size, evenly distributed, and distant their own widths ; between
the eyes, near the anterior margin, the sculpture becomes very confluent and

NOKTII AMERICAN COLEOPTERA. 45

rough, punctures Vcariolate ; labrum very feebly emargiiiate anteriorly, sides
broadly rounded, "fringe of setae very strong, setae fulvous ; supra-orlntal
ridges acute and distinct ; antennae moderate in length, rather slender, third
joint slightly longer than the fourth. Prothorax distinctly wider at base
than at the vertex, where it is much wider than the head ; base generally
arcuate, distinctly and strongly trisiniiate, apex very broadly aud feebly
emarginate ; sides most strongly arcuate in front of tlie middle, slightly con-
vergent posteriorly, feebly sinuate anteriorly ; anterior angles very slightly
rounded, posterior slightly obtuse, but not at all rounded ; prouotum mar-
gined anteriorly and posteriorly, narrowly reflexed at the sides, edges acute ;
disk moderately convex, rather finely and closely punctured in the middle,
punctures becoming larger and closer toward the sides. Elytra at base
slightly wider than the contiguous pronotum ; sides just perceptibly diver-
gent posteriorly and nearly straight for three-fourths the length from the
humeri, disk nearly three and one-half times as long as the pronotum,
rather strongly convex, narrowly reflexed at the sides, somewhat acutely
rounded behind ; rather strongly, closely, and minutely punctate in the
middle, punctures much larger at the sides, in the middle they are slightly
more distant in the rows than the distance between the latter ; the
surface is, in addition, very feebly undulated, minutely and irregularly
creased, minutely granulated, and, toward the sides, having numerous
elevated points. Under surface of abdomen strongly convex, very finely
punctate, very closely so on the last segment ; prosternum strongly and
closely pitted. Legs rather long ; posterior tarsi as long as the tibiae, first
joint as long as the fourth, longer than the second and third together, second
longer than the third. Length 9.2 mm. ; width 3.5 mm. ; size very uniform.

Arizona (Morrison).

The mentum is strongly and roundly emarginate at apex, through
a distance equal to nearly one-third its width at base ; the exposed
surface is strongly punctate posteriorly, and obliquely rugulose ante-
riorly. The spurs of the anterior tibiae are as in emarginatum.

EMMEXASTUS.

E. Iiauillus n. sp. — Form robust, very convex. Entire body covered
very sparsely with extremely short, semi-erect setae, which are almost invisi-
ble. Upper surface very dark piceous-brown, nearly black, legs and under
surface much paler, piceo-rufous, the former slightly the paler, antennae
still paler, piceo-rufous. Head much broader than long ; anterior margin
transverse and straight, angles broadly rounded ; interocular surface rather
convex, deeply, very closely, rather coarsely and roughly, though eveuly
punctate ; eyes small, very feebly convex ; antennae as long as the width of
prothorax, second joint two-thirds as long as the third and as long as the
fourth, joints five to eight shorter, successively and feebly decreasing in
length, last three joints strongly flattened, ninth and tenth broader than
long, sub-triangular, eleventh slightly longer than wide, oval. Prothorax
four-fifths wider than long ; anterior and posterior margins straight and
transverse, the former about one-fifth shorter, slightly longer than the width

40 THOS. L. CASEY.

of head ; sides evenly and moderately arcuate throughout ; disk very convex,
strongly and rather closely punctured, punctures very Evenly distributed,
distant generally by nearly twice their own widths, deeply impressed.
Scutellum very small, sides short and nearly parallel, broadly angulate
behind. Elytra at base as wide as the pronotum ; sides parallel and rather
strongly arcuate ; together acutely rounded behind ; disk about two and
one-half times as long as the pronotum, very strongly convex and having
tliree systems of sculpture combined : first, striae of small, deeply impressed
punctures, with smaller impressed punctures scattered sparsely and without
order over the intervals ; second, a very minute and even granulation over
the entire surface; third, a system of very irregular, feebly impressed, and
somewhat transversely arranged creases. Under surface of the abdomen
irregularly and distantly punctate, punctures round and rather feebly im-
pressed ; prosternum finely and transversely rugnlose. Legs moderate, femora
flattened ; first joint of the posterior tarsi longer than the next two together,
very slightly shorter, though more robust than tlie last joint. Length
4.6—5.6 mm.

San Diego, California.

This species seems to be rather abundant.

COMOXTIS.

C. elliptica n. sp. — Form moderately robust, sides parallel ; upper
surface glabrous, with exception of a few excessively minute setae near the
border of the elytra ; black throughout, elytra slightly more lustrous than
the pronotiam. Head broader than long, sub-triangular, minutely and rather
closely punctured, punctures increasing in density to within a short distance
of the anterior margin ; epistoma broadly and evenly emarginate anteriorly,
epistomatic suture distinct; labrum strongly emarginate in the middle ante-
riorly, lobes evenly rounded ; antennae three-fourths as long as the pronotum,
slender, filiform, second joint scarcely one-half as long as the third, joints
four to ten sub-equal, shorter, last joint still shorter; mentum broadly and
deeply emarginate. Prothorax at base two and three-fourths times, as wide
as the head ; sides just perceptibly convergent and nearly straight for three-
fourths the length from the basal angles, then rather abruptly and strongly
rounded to the apical angles ; apex broadly emarginate, base transverse,
broadly and feebly sinuate toward the basal angles, the latter rather promi-
nent and acutely rounded ; anterior angles acute, narrowly rounded ; disk
two-thirds wider than long, strongly and evenly convex, minutely and dis-
tantly punctate, the jmnctures becoming very slightly closer toward the
sides ; very minutely and conspicuously granulated ; pronotum narrowly
rortexed at the sides, narrowly margined anteriorly, edges strongly rounded ;
surface not margined jiosteriorly. Scutellum triangular, broader than long.
Klytra as wide as the prothorax ; sides parallel and nearly straight for two-
thirds the length jmsteriorly ; disk very convex, acutely rounded behind,
two and one-half times as long as the pronotum ; surface minutely rngulose
or undulated, granulations rather indistinct, punctures minute, strong,
evenly distributed, coarser, and more distant than those of the pronotum,

NORTH AMERICAN COLEOPTERA. 47

arranged without order ; near the suture a few indistinct transverse creases
are visible ; sides narrowly reflexed, edges acute ; epipleurae narrow and
continuous throughout the lengtli. Legs slender ; first joint of the posterior
tarsi as long as the remaining ones combined. Length 12.0-14.0 mm. ; width
5.5-6.5 mm.

San Diego, California.

In some specimens, %, the sides are almost exactly parallel, while
in the larger specimens, 9, the sides are just perceptibly divergent
from near the apical pronotal angles to a point on the elytra two-thirds
their length from the humeri. The males, though smaller, have a
notably larger scutellum.

The differences between tliis species and robusta Horn are as
follows : —

In the former the sides of the pronotum for two-thirds the length
from the posterior angles are feebly convergent, while in the latter
they are generally slightly divergent. In the former the terminal
spurs of the tibiae are more slender and the elytral sculpture is very
much smoother. In the latter the form is very much more robust
and slightly more depressed. In the former the head is relatively
smaller and the sides of the elytra are more narrowly reflexed. There
are also great differences in the length and sizes of the outer antennal
joints. The comparisons have been made directly with Dr. Horn's
type of rohusta which appears to be a somewhat rare species.

E. arciiata n. sp. — Form robust ; body shining, very finely sculptured ;
intense black throughout, glabrous. Head moderate in size ; sides nearly
parallel to a point considerably beyond the eyes, then rapidly convergent
and straight to the angles of the epistoma ; epistoma broadly and evenly
emarginate, posterior suture distinct and strongly bisinuate ; interocular
surface broadly and evenly convex ; between the eyes the punctures are
very fine and irregularly scattered, gradually increasing in size and density
anteriorly, on the epistoma they are very close and much larger ; labrum
very roughly, closely, and deeply sculptured, narrowly and deeply emargi-
nate anteriorly ; mentum slightly wider than long, acutely and evenly rounded
anteriorly, deeply bi-impressed on the exposed surface ; last joint of maxil-
lary palpi nearly as wide as long, strongly securiform, flattened, penultimate
joint much smaller. Prothorax twice as long as the head, distinctly wider
than the same anteriorly ; base one-fourth longer than the apex ; sides
strongly and nearly evenly arcuate, most strongly so just in advance of the
middle, very feebly and minutely sinuate just in advance of the posterior
angles ; apex broadly emarginate, base very broadly and feebly arcuate,
entire ; anterior angles acute, posterior obtuse, but not at all rounded ; disk
as long as wide, moderately convex, minutely granulated, very sparsely and
somewhat irregularly punctate, punctures very minute. Scutellum wider

48 TIIOS. L. CASEY.

than long, iinpunctate, and highly polished. Elytra at base as wide as the
contiguous prunotum ; sides parallel for four-fifths the length from the
humeri, evenly and very strongly arcuate ; disk very obtusely rounded
behind when viewed vertically, t^ro and one-third times as long as the
pronotnm ; snrface minutely and regularly creased, very minutely and
strongly granulated, rather feebly and minutely punctate ; punctures ar-
ranged in regular striae, with a single row of smaller punctures between.
Under surface of tlie abdomen very sparsely and feebly punctate, except on
the last segment, where they are deep, dense, and setigerous. Legs mode-
rate ; tarsi short and robust, second and third joints of the posterior very
feebly elongated. Length 13.5-15.0 mm. ; width at widest section, wliich is
at the middle of the elytral suture as viewed vertically, G. 4-7.0 mm.

Arizona ; two specimens ; differences scarcely noticeable.

Regarding the elytral suture of this si)ccies as a line in space, its
course is seen to be nearly straight to within a very short distance
of the elytral apex as viewed vertically, where it is suddenly bent
downward, so that at the immediate apex of the elytra, its course
makes an angle perceptibly less than a right angle, with its direction
at the scutellum. In no other species that I have seen is the sutural
line so strongly and suddenly bent posteriorly ; there is no tendency
to caudal prolongation.

This species is more closely allied to extricata Say than any other
species in the catalogue, and differs in the following very important
characters : —

In extricata the intercoxal salient of the first ventral segment is
about as wide as the intercoxal salient of the metasternum, while in
arcuata the first is very much wider than the second, and is relatively
much shorter.

In the former species the intercoxal process of the prosternum is
very abruptly constricted posteriorly, into an elongated, narrow pro-
cess, while in the latter it is very gradually and arcuately narrowed
posteriorly.

In the former the second joint of the antennae is about one-fifth
as long as the third, and is wider than long, while in the latter it is
more than one-fourth as long as the third, and is nearly as long as wide.

The elytral j)unctuation in the two species differs in (juality to a
marked degree ; in extricata it consists of approximate rows of very
approximate punctures, with more widely spaced punctures between
the rows; in arcuata it consists of widely spaced rows of approximate
punctures, with regular rows of much more distant [lunctures between
them.

The form of body is quite different in the two species ; that above
described greatly resembles coynata Ilald., if the type of tiie latter

NORTH AMERICAN COLEOPTERA. 49

in Dr. LeConte's collection is to be relied on, and differs from it
supeificiuUy in the nature of the elytral sculpture, as well as in the
relatively more elongated prothorax. I have not had an op[)ortunity
to examine it more minutely. If the two should prove identical, it
will be a source of surprise that Haldeman's species should have
been suppressed and united with extricata. The above differences
are so marked that it is difficult to conceive of their having been
overlooked.

PLATYDEMA.

P. pernigrillll n. sp. — Form regularly elliptical, elongated, moderately
convex, more than twice as long as wide ; glabrous, opaque. Color above
deep black, beneath rufous. Head wider than long, somewhat trapezoidal ;
anterior margin transverse, angles rounded ; interocular surface nearly flat,
punctures throughout very small, round, deeply impressed, very closely
crowded, evenly distributed ; antennae slightly shorter than the basal width
of pronotum, first four joints reddish-testaceous, joints five to ten black, last
joint reddish-testaceous, the outer joints distinctly flattened, joints eight to
ten distinctly broader than long ; last joint of the maxillary j^alpi twice as
long as wide, as long as the second and third together ; mentura slightly
longer than wide, narrowed toward the base, anterior angles broadly rounded,
feebly emarginate anteriorly, exposed surface very strongly convex in the
midd-^e, the summit of the nearly hemispherical convexity bearing a trans-
verse, bilobed, spongy patch ; mandibles very strongly bidentate at tip, teeth
very acute. Prothorax at base twice as wide as long; base one-half longer
than the apex, transverse and straight at the sides, strongly arcuate in its
middle third ; apex broadly and feebly emarginate ; sides evenly and feebly
arcuate ; anterior and posterior angles slightly rounded ; disk broadly and
evenly convex, narrowly reflexed at the sides, which are narrowly margined,
lateral edges acute ; surface most minutely granulate, also evenly and very
finely punctulate, punctures very feeble. Scutellum slightly wider than long,
acute posteriorly, sides arcuate. Elytra at base as wide as the contiguous
pronotum ; sides parallel and moderately arcuate for two-thirds tlieir length
from the humeri ; disk three times as long as the pronotum, rather acutely
and very evenly rounded behind ; sides narrowly and rather strongly reflexed
throughout ; surface punctate, punctures round, rather deep, sub-variolate,
arranged in rather distant striae, distance of punctures in the rows equal to
about one-third the distance between the latter ; also very finely, evenly,
closely, and feebly punctulate ; finally excessively finely granulate. Poste-
rior portion of fourth, and anterior portion of the fifth ventral segments
having a deep, transverse, and common impressed groove. Legs moderate ;
first joint of the posterior tarsi equal to two-fifths the entire length of the
latter. Length 6.7 mm. ; width 3.2 mm.

Arizona (Morrison).

This*species differs from P. Janus in its much more elongate form;
in the color, that oi' jcmtis being usually of a reddish-black above; in
Published August, 1884. 4

50 TIIOS. L. CASEY.

the shape of the nientum, that o^ Janus heing broader than long; in
the punctuation of the head, that of pernigrum being much more
dense ; also in the length of the eye. The antennae and sculpture
are almost exactly the same in both. The three specimens of the
present species before me do not perceptibly vary.

P. parvuluill n.sp. — Form rather elongated, elliptical, twice as long
as wide ; upper surface polished, dark piceous, niider surface slightly paler.
Head small ; iuterocular surface strougly declivous, rather feebly tuberculate
near each eye ; epistoma nearly plane, scarcely declivous, with a very broad,
feeble, transverse furrow separating it from the declivous portion, very
broadly and feebly swollen in the middle ; anterior margin very broadly
rounded, nearly transverse in the middle ; labrum very broadly rounded,
short, punctures between the eyes small, round, feebly impressed, evenly
distributed, and separated by nearly twice their own widths ; those of epis-
toma much more distant ; surfaces minutely granulate, shining ; antennae
robust, short, scarcely as long as the width of pronotum, piceous-brown
throughout, second joint two-thirds as long as the third, third and fourth
equal in length, penultimate joints very strongly transverse. Prothorax at
base slightly more than twice as wide as long ; base one-half wider than the
apex; side feebly and very evenly arcuate; anterior and posterior angles
rounded ; anterior margin broadly and evenly emargiuate, posterior feebly
bisiuuate, strongly arcuate in the middle ; disk with two feeble impressions
at the base, moderately convex, minutely, rather evenly and distantly punc-
tate, also minutely reticulated, polished. Scutellum slightly longer than
wide. Elytra at base slightly wider than the contiguous pronotum; sides
parallel and rather strongly arcuate for two-thirds the length from the
humeri ; disk evenly convex, slightly more than three times as long as the
pronotum, rather acutely rounded behind, feebly striate ; striae impressed
and very strongly punctate, distance between punctures in striae, slightly
more than one-third the distance between the latter ; intervals very feebly
convex, very minutely, evenly, rather distantly and distinctly punctulate,
also minutely reticulated, polished. Under surface of the abdomen sparsely
and rather feebly punctate, more finely and distantly so on the last segment.
Fourth joint of posterior tarsi equal in lengtli to the second and third together,
much shorter than the first. Length 3.1 mm.

"Wilk'ts Point, Long Island ; one specimen, % .

This tine little species resembles somewhat a very minute exca-
vation, in which the frontal horns are rudimentary. It is seen, how-
ever, to be very distinct by the short antennae, having very strongly
transverse outer joints, and by the punctuation of the pronotum. In
e.rcavatum the penultimate joints are very feebly transverse, and the
second joint is relatively very much shorter ; the punctuation of the
pronotum is much coarser, and the basal impressions are not as strong;
the color, also, is deep black. The prosternal episterna are much
more feebly and sparsely punctured in parcnlam.

NORTH AMERICAX COLEOPTKRA. 51

It also resembles miccins Horn, but in that species, which is more
southern in its habitat, the head is not bituberculate, and the penulti-
mate antennal joints seem to be still more transverse.

P. opacilllIIU n. sp. — Form elliptical, nearly twice as long as wide,
very moderately convex ; surface above opaque, deep black, beneath dark
blackish-fuscous ; antennae and legs dark fuscous. Head moderate, slightly
wider than long; surface nearly plane, coarsely and closely punctate, more
finely and distinctly so anteriorly ; anterior margin broadly rounded ; labrum
very short and broad ; antennae uniform in color, as long as the width of
prothorax, robust, slightly flattened toward the tip, second joint less than
one-half as long as the third, joints three, four, and five decreasing uniformly
and very gradually in length ; mentum slightly broader than long, broader
at apex than at base, sides nearly straight, anterior angles slightly rounded,
anterior margin broadly and feebly emarginate, exposed surface feebly con-
vex and having numerous long, blackish, erect setae ; maxillary palpi well
developed, last joint very robust, slightly shorter than the two preceding
joints together, nearly as wide as long, broadly and obliquely truncate at tip,
where it is deeply hollowed. Prothorax much more than twice as wide as
long ; base nearly one-half longer than the apex ; sides moderately and very
evenly arcuate ; anterior and posterior angles slightly rounded, the former
obtuse, the latter acute ; apex bisinuate and transverse, base bisiuuate and
strongly arcuate in the middle ; disk rather feebly, closely, and evenly
punctate ; minutely granulate. Scutellum slightly wider than long, apex
acute, sides feebly arcuate. Elytra at base as wide as the jironotum ; sides
parallel and moderately arcuate for three-fourths the length from the humeri ;
disk evenly convex, more than three times as long as the pronotum, one-half
longer than wide, broadly and evenly rounded behind, strongly punctate;
punctures round, deeply impressed, arranged in striae-like rows ; distance
between punctures in the rows, scarcely one-third of that between the latter;
intervals flat, very obscurely, excessively faintly, and rather distantly punc-
tulate, also minutely granulate ; near the scutellum and the suture there is
a very short row of punctures on each elytron. Under surface of abdomen
very coarsely and evenly punctate ; punctures of last segment much finer.
First joint of the posterior tarsi slightly longer than the next two togethei".
Length 3.9 mm.

Pennsylvania, near Philadelphia ; one specimen.

P. rvjicorne, the only species with which the present one can be
compared, is much longer and paler beneath, where it is much more
finely punctate; the punctures of the elytral series are much finer, and
their distance asunder in the rows is generally tour or five times less
than the distance between the latter.

DISOIVYCHA.

I>. pulclira n. sp. — Form rather elongated, elliptical, moderately con-
vex ; glabrous ; shining. Head broader than long, surface moderately convex,

02 THOS. L. CASEY.

irapuiictate ; labrum three times as broad as long, rather feebly emarginate
anteriorly ; eyes large, rather prominent, much shorter than wide, emargi-
nate anteriorly ; antennae two-thirds as long as the elytra, robust, nearly
black, basal joint slightly paler, very finely pubescent, basal joint as long as
the next two together, joints four to ten nearly equal in length, obliquely
truncate at their distal extremities, terminal process of last joint acumi-
nate and large ; last joints of labial and maxillary palpi subulate and
partly enveloped by the penultimate ; mentum slightly broader than long,
somewhat trapezoidal, surface broadly, feebly, and very evenly convex,
edges rounded. Prothorax two and one-third times wider than long ; base
transverse and nearly straight in the middle half, thence bent slightly
anteriorly and straight to the basal angles, which are rounded slightly and
very obtuse ; apex broadly and evenly arcuate throughout ; anterior angles
broadly rounded ; sides strongly arcuate posteriorly, nearly straight or
slightly sinuate near the apical angles ; disk impunctate, except under a
very high power, when it is seen to be most finely, distantly, and just
visibly punctulate, and most excessively finely reticulated ; sides flat and
porrected ; near each basal and apical angle there is a long seta. Scutellum
slightly broader than long, triangular. Elytra at base as wide as the con-
tiguous pronotum ; sides parallel and rather strongly arcuate for four-fifths
the entire length ; disk four times as long as the pronotum, obtusely rounded
behind, minutely granulated, very feebly, distantly, and evenly punctulate ;
each elytron having a narrow black vitta along the suture, a medial one
nearly twice as wide, which does not attain the elytral tip, and a narrow
marginal vitta, just inside the narrow porrected border ; the latter and the
reuiaindi^r of the disk red, the margins of the red vittae being paler. Under
surface bright rufo-testaceous. Legs moderate, rufous, except the tips of the
tibiae and the tarsi, which are piceous-black ; terminal spur of the posterior
tibiae acute, stout and slightly bent. Length 6.5 mm.

Near Chester, Pennsylvania ; two specimens.

The general color of the head and prothorax is red ; the pronotum
has two black points in the middle anteriorly; exterior to these spots
the surface becomes paler, nearly wliite, beyond much deeper red,
and at the lateral nuirgins again i)aler. The integument of the
pronotum is so thin and transparent that tlie bloodvessels and
general circulatory system can be perfectly seen tlirough it; it is to
these vessels that the color of the paler patches is due. Tlie s|)eci-
mens were found under debris on the shores of the Delaware Kiver.

]>. ai'izoiiae n. sp. — Form elongated, moderately convex, increasing in
width jiostcriorly. Upper surface glabrous, polished; yellow, vittae and
spots black ; under surface very sparingly pubescent, piceous-brown. Head
rather small, as long as wide ; surface pale piceous-brown, more or less
mottled, feebly convex, having numerous scattered setigerous punctures
near the eyes, the latter very convex, short, and prominent, emarginate
anteriorly ; between the bases of the antennae there is a deep transverse
furrow, acutely augulate posteriorly, which is the posterior limit of a convex,

NORTH AMERICAN COLEOPTERA. 53

longitudinal, inter-antennal elevation ; labrum four times as wide as long,
broadly emarginate anteriorly ; antennae about one-half as long as the
elytra, piceous-black, base infuscate, second joint nearly globular, joints
four to ten decreasing rapidly in length, the former twice as long as wide,
the latter quadrate ; finely pubescent toward the tip ; mentum longer than
wide, sides nearly parallel, transversely truncate anteriorly, surface convex.
Prothorax nearly two and one-half times as wide as long ; base broadly
arcuate, feebly sinuate in the middle and near the basal angles, apex nearly
transverse ; apical angles prominent, rounded, and callous, posterior very
slightly rounded ; sides moderately divergent posteriorly, arcuate, very feebly
sinuate near the apical callosities ; disk more or less broadly, feebly, and
irregularly impressed, minutely and distinctly rugulose, very minutely and
distinctly reticulated, rather sparsely and finely punctured ; margins nar-
rowly reflexed. Scutellum wider than long, triangular. Elytra across the
humeral protuberances distinctly wider than the pronotum ; sides divergent
and nearly straight for two-thirds the length ; disk broadly and obtusely
rounded behind, nearly five times as long as the pronotum, highly polished,
extremely feebly reticulated, finely and evenly punctulate, each elytron
having a very narrow black vitta along the interior edge attaining the tips,
a broader median vitta not attaining the tip, and a narrow marginal vitta
attaining the tip, remainder of the disk tlavate. Under surface of the abdo-
men mottled very confusedly with rufous, dark piceous-brown, and ochreous-
yellow ; legs piceous-brown throughout, femora confusedly clouded. Length
(3.5 mm.

Arizona (Morrison).

The differences between tlie present species and pnlchra are almost
generic, and lie principally in the structure of the palpi, mentum, and
prosternal intercoxal process. The latter in arizontB is dilated poste-
riorly and transversely truncate behind ; in pnlchra it is narrower and
gradually nan-owed posteriorly to the tip, which is acute ; in pennsyl-
vanica it is narrow, with the sides nearly parallel, and the surface is
very densely hirsute ; these differences may serve as a convenient
basis of classification. The only ornamentation of the pronotum in
arizonce consists of two small bhick spots rather distant and just in
advance of the middle.

CH^TOCIVEMA.

C> paiipercilla n. sp. — Form rather slender; glabrous. Color above
bronzed, beneath pale piceous-brown ; shining. Head nearly twice as
wide as long ; interocular surface evenly and rather feebly convex, finely,
deeply, and very distinctly granulate, also minutely, rather sparsely and
distinctly jiunctulate ; labrum nearly three times as wide as long, trans-
verse anteriorly; eyes broadly emarginate anteriorly, the upper margin of
the eyes, which are nearly straight, are produced anteriorly as two deep
straight convergent grooves, which connect with a very short transverse
groove between the bases of the antennae ; this transverse line is broadly

4*

54 TIIOS. L. CASEY.

aiigiilate posteriorly, and at the apex there is a very deeply impressed,
posteriorly bifurcated puncture ; antennae slightly longer than the width of
pronotum, basal joint moderately robust and elongated, second less robust
and shorter, joints three to six slender, sixth much the. shortest, joints
seven to eleven enlarged as a very elongated compact cylindrical club,
darker in color. Prothorax nearly twice as wide as long ; sides nearly
parallel and feebly arcuate ; base rather strongly arcuate and very feebly
sinuate near the basal angles, which are acute ; apex broadly and evenly
arcuate ; disk narrowly mai-gined posteriorly, finely, evenly, and very con-
spicuously reticulated, also strongly, evenly, and rather distantly punctate ;
in the middle there are four distinct impressions at the corners of a square ;
just inside the posterior margin there is a transverse row of very large deeply
impressed punctures. Elytra three times as long as the pronotum, rather
acutely rounded behind ; disk minutely reticulated, though not as distinctly
as the pronotum, very strongly punctate, punctures large, very deeply im-
pressed and arranged in striae-like rows, fifth and sixth rows discontinuous.
Prosternum broadly and roundly emarginate anteriorly ; distance of front
coxae from the emargination equal to one-half the distance between them.
Length 1.8 mm.

Willets Point, Long Island ; one specimen.

This is a somewliat remarkable species ; the front coxae are more
widely separated than usual. '1 he specimen described above is slightly
immature, thus causing a warping of the elytra after drying ; the
exact form of these parts cannot tlierefore be exactly stated.

PSIXLIODES.

P. extricata n. sp. — Form elongated, narrowed behind, somewhat
depressed ; body glabrous, shining, brassy-bronze above, much more piceous
beneath. Head convex, moderate in size ; interocular surface almost con-
tinuous in convexity with the eyes, nearly twice as wide as the latter, feebly
and evenly punctulate and minutely granulated ; eyes not at all prominent ;
labruni one-third wider than long, roundly and feebly emarginate in the
middle anteriorly, anterior angles rounded, surface with two feeble approxi-
mate setigerous impressions in the middle ; antennae moderate, testaceous at
base, piceous toward the tip where they are thickly pubescent, joints two,
three, and four uniformly and rapidly increasing in length, fifth much
shorter, sixth slightly longer than the fifth. Prothorax twice as wide as
long, base one-third longer than the apex ; sides nearly straight ; base and
apex broadly, evenly, rather strongly, and nearly equally arcuate ; posterior
a ngles atute turn above; disk finely and evenly unctulate, and finely
reticulated, punctures separated by about five times their own widths ; base
narrowly and evenly margined. Scutellum sub-triangular, sides arcuate,
broader than long. Elytra at base as wide as the prothorax ; sides rather
strongly arcuate and convergent posteriorly ; disk four times as long as the
pronotum, acutely rounded behind, strongly punctate : punctures deeply
impressed and arranged in striae-like rows, distance between the rows greater
than the distance between the punctures in the rows ; surface also minutely

NORTH AIMERICAN COLEOPTERA, 55

and very feebly rugulose or undulated ; epipleurae of nearly equal width
throughout, not widened abruptly at base. First joint of anterior tarsi not
swollen, elongated and narrower than the third, which is strongly bilobed,
joints one and three spongy-pubescent beneath. Under surface of the abdo-
men very sparsely pubescent. Length 2.6 nun.

New Jersey; one specimen.

The only species -with which the above described form can be com-
pared is interstitialis Lee, and the differences are so great as to leave
no doubt of its distinctness ; it will suffice here to mention one, viz. :
the structure of tlie anterior tarsi, the first joint of which is greatly
swollen in interstitialis and of normally slender form in extricata.

P. aenescens n. sp. — Form robust, very convex ; body glabrous, highly
polished, brassy-bronze above, abdomen black beneath, f«mora piceous-black,
tibiae and tarsi paler. Head moderately convex ; eyes somewhat jjrominent ;
interocular surface evenly convex, sparsely and minutely punctate, minutely
reticulated ; labrum broadly and feebly emarginate anteriorly, having two
distant impressed punctures on the upper surface, which are small, very
distinct and setigerous ; antennae one-half as long as the body, reddish-
testaceous at the base, becoming dark piceous-brown toward the tip, rather
slender, terminal process of last joint very slender and distinct, second joint
distinctly longer than the third, and about as long as the fourth. Prothorax
distinctly less than twice as wide as long ; apex scarcely one-fourth shorter
than the base, both broadly, evenly, nearly equally and rather strongly
arcuate; sides very feebly arcuate ; posterior angles acute ; just perceptibly
wider than the head anteriorly ; disk strongly convex, distinctly, evenly,
and very narrowly margined posteriorly ; punctures somewhat coarse and
distant, nearly evenly distributed ; surface also minutely reticulated. Scu-
tellum small, angulate behind, sides strongly arcuate, much wider than
long, steel-blue in color. Elytra at base very slightly wider than the pro-
notum ; disk very convex, widest at one-fourth its length posteriorly, thence
gradually narrowed behind, immediate apex very obtusely rounded ; surface
very strongly punctate and minutely, though rather strongly, rugulose or
undulated ; punctures arranged in rows, having an irregular line of extremely
minute punctures between them, distance of the ijunctures in the rows equal
to about two-thirds the distance between the latter. Posterior femora very
robust, and very rapidly narrowed to the apex ; first joint of the anterior
tarsi moderately robust, as wide as the third, which is strongly bilobed.
Length 2.1 mm.

Willets Point, Long Island; two specimens.

This species differs from interstitialis in the following particulars: —

In the latter the punctuation of the head and prothorax is closer,

and the punctures of the pronotum are finer ; the granulation of these

surfaces is also much more distinct ; the scutellum is smaller and

narrower ; the punctures of tlie elytra are much less strong and are

OG TIIOS. L. CASEY.

more distant in the rows ; the first joint of the anterior tarsi is much
more swollen and is broader than the third joint ; the under surface
of the abdomen and the surface of the posterior femora are more
thickly pubescent ; the second joint of the antennae is distinctly
shorter than the third ; in cenescens, the body, besides being smaller
in size, is of a different shape ; in interstitiaJis the elytra are widest
at a point one-third their length from the humeri, and the general
form is slightly more elongated and less robust.

TYLODERItlA.

T. nigrum n. sp. — Form rather robust; body deep black tliroughout,
moderately shining, scarcely metallic ; tibiae dark fuscous. Head moderately
convex, rather coarsely and feebly punctate, very sparsely so in the middle,
more densely at the sides ; rostrum very robust, anterior surface broadly
impressed at the base, coarsely and longitudinally rugulose or furrowed,
entire surface minutely granulose. Prothorax just perceptibly wider than
long; sides just visibly divergent from the basal angles for two-fifths the
length anteriorly, then rather suddenly and strongly constricted ; very
evenly and strongly arcuate anteriorly when viewed vertically, base very
broadly and feebly arcuate ; Hanks perpendicular, strongly swollen just over
the anterior coxae, edge sinuate anteriorly, emargiuate for the coxae at the
sides : disk of pronotum very sparsely punctate dorsally, where the punc-
tures are round, small, impressed, and much finer anteriorly than toward
the base ; on the flanks the punctures are very irregularly distributed, much
coarser, deeper, and generally closer ; surface minutely granulose, feebly
shining. Scutellum longer than wide, convex, angulate behind. Elytra at
the humeri slightly more than one-third wider than the contiguous pronotum ;
sides parallel and very feebly arcuate for one-half the length, then gradually
convergent; disk acutely rounded behind, very convex, scarcely more than
one-lialf longer than wide, slightly more than twice as long as the pronotum ;
punctures large, deeply impressed, round, arranged in rows, distances of the
punctures in the sutural rows much less than in the others : flanks inflexed ;
edges not bordered, nearly straight laterally, acute ; viewed from beneath,
the edges are very broadly cusped, cusp broadly rounded and placed at the
sides of the third ventral segment. Under surface of abdomen sparsely
punctate, slightly more densely so on the last segment, first two segments
together slightly longer than the last three ; metasternum very coarsely,
deeply, and rather sparsely punctate, very coarsely granulose. Length
3.8 mm.

^Northern Illinois.

This species diHers from cereinn and baridnm in facies. One of
the numerous structural differences is shown in tigs. 10, 11, and 12,
plate I., which represent the relations existing between the meso-
sternal and metasternal episterna, and the mesosternal epimeron in
the three species respectively. It is seen that, while the mesosternal

NORTH AMERICAN COLKOPTEItA. 57

episternum comes very far from attaining the metasternum in cereum
it actually borders it for a short distance in the present species.

T. pillictatum n. sp. — Form nearly as in cereum; glabrous ; shining.
Head small ; rostrum very short, robust, strongly constricted at the base
between the eyes, enlarged at the tip, which is transversely truncate and
clothed at the sides with very sparse setae ; surface rather finely rugulose ;
front finely punctate in the middle, more coarsely so toward the eyes,
minutely granulose, rather strongly convex ; eyes coarsely granulate. Pro-
thorax slightly longer than wide, widest at the base whicli is broadly angii-
late, angle broadly rounded ; apex nearly one-half shorter, strongly arcuate ;
sides gradually divergent posteriorly except in the middle, where they are
abruptly arcuate for a short distance, very feebly sinuate just before the
basal and behind the apical angles ; angles at base and apex rather promi-
nent ; disk very sparsely and minutely punctulate toward the base, with a
very few widely scattered larger punctures ; surface polished in the apical
half, granulose toward the base ; just behind the apical margin there is a
transvei'se row of small punctures, which become very large and deep on the
flanks. Elytra widest at the humeri, where they are one-third wider than
the pronotum at base ; sides thence feebly convergent posteriorly and acutely
roiinded behind ; disk very convex, polished, reticulated ; very strongly,
coarsely, and sparsely punctate, punctures arranged in rows ; suture nearly
two and one-half times as long as the pronotum. Scutellum minute, longer
than wide. Legs robust ; last joint of the tarsi slender ; claws very small,
strongly arcuate. Last ventral segment as long as the two preceding together,
nearly flat, very strongly arcuate behind ; surface sparsely and somewhat
finely punctate. Color of the upper surface of the body brassy-bronze, that
of the lower surface black, legs piceous. Mesosternal episternum not attain-
ing the metasternum. Length 4.0 mm. ; breadth 1.8 mm.

Willets Point, Long Island.

From cereum this species differs radically in its much larger size,
in the shape of the prothorax and elytra, in the punctuation of the
latter, in the punctuation of the under surface, especially of the meta-
sternum and last ventral segment, and in the punctuation of the
pronotum. In cereum the punctures of the elytra are smaller, and
generally joined in the rows by at least a feeble impressed channel,
giving sometimes the appearance of a punctate stria, and the sculpture
of the last ventral segment is very close, coarse, coalescent, and con-
fused, more particularly so toward the tip. The greatest difference
exists, however, in the shape of the pronotum, the sides being abruptly
constricted at the base in cereum, so that it is widest before the middle ;
that species also lacks the row of punctures behind the anterior mar-
gin. The metasternum in cereum is very coarsely and deeply punctate
while in the present species it is sparsely and rather finely so.

The type specimen was found clinging to the under surface of a
stone on the shore of a small pond.

58 TIIOS. L. CASKY.

EXPLANATION OF THE PLATE.

Fig. 1. Anterior portion of the head in Harpalus convictor.

Fig. 2. The aame in //. riridldiiens.

Fig. 3. Tlie same in II. cjiuonicus.

Fig. 4. The same in H, lustralis.

Fig. 5. The same in H. lenescens.

Fig. 6. Structure of the raesosternum between the coxae in Tithams.

Fig. 7. Antenna of Titlianis.

Fig. 8. Structure of the mesosternura between the coxae in Aleochara.

Fig. 9. The same in Emplenota.

Fig. 10. Conformation of thg mesosternal and metasternal episterna and
the mesosternal epimeron in Tijloderma ni(jrum.

Fig. 11. The same in T. wreiim.

Fig. 12. The same in T. baridlum.

PLATE

NORTH am?:ricax coleopteka. 59

LIST OF SPECIES DESCRIBED OR CITED.

PAGE

Pterostichus zephyrus n. sp 2

osculans n. sp 2

Amara apachensis n. sp 3

marylandica n. sp 4

pallida ii. sp 5

ferruginea n. sp 5

Anisodactylus arizonae n. sp 6

Amerinus linearis (Lee.) 7

Bradycellus lucidus n. sp 8

Harpalus opacus n. sp 8

manhattanis n. sp 9

vespertinus n. sp 10

placidus n. sp 10

mutabilis Hald 11

viridiseneus Beauv 12

convictor n. sp 12

canonicus ii. sp 12

lustralis n. sp 12

aenescens n. sp 12

Selenophorus aeneopiceus n. sp 13

Stenolophus gracilis n. sp 14

Bembidium vinnulum n. sp 15

Tachys litoralis n. sp 15

Tithanis valida (Lee.) 17

Emplenota maritima ii. sp 17

Euaesthetus brevipennis n. sp 20

punctatus n. sp 21

floridae n. sp 21

similis n. sp 22

mundulus ii. sp 23

robustulus n. sp 24

iripennis n. sp 25

texanus n. sp 26

americanus Erichs 27

atomus u. sp 28

Edaphus nitidus Leo 29

carinatus n. sp 30

luculentus n. sp 31

00 THOS. L. CASEV.

PAGE

Tychus testaceus ii. sp 31

Bryazis gracilis n. sp 32

inopia n. sp 33

Carpophilus zuni ii. sp 34

Epuraea papagona n. sp 35

Ennearthron californicum n. sp 36

unicolor n. sj> 37

Lachnosterna subpruinosa n. sp 38

anxia l.ic 39

Drakei Kii-]) 39

consimilis Lee 39

fusca (FriHil) 39

Eurymetopon piceum ii. sp 40

eniarginatum n. sp 41

papagonum ii. sp 42

carbonatum ii. sp 43

sculptile n. sp 44

dubium n. sp 44

Emmenastus nanulus n. sp 45

Coniontis elliptica n. sp 4(3

Eleodes arcuata n. sj) 47

Platydema pernigrum n. sp 49

parvulum ii. sp 50

opaculum n. sp 51

Disonycha pulchra u. sp 51

arizonae n. sp 52

Chcetocnema paupercula n. sp 53

Psylliodes extricata n. sp 54

aenescens n. sp 55

Tyloderma nigrum n. sp 5(}

puiictatum 11. sp 57

Coiitri1)iitions to the Descriptive and Systematic
Coleopterology of IVorth America.

PART II.
By Thos. L>Casey, Lieut, of Eng'rs, U. S. A.

This, the concluding part of tlie present work, contains descrip-
tions of new species and genera, and systematic revisions of several
genera as represented in the United States ; among the latter are
Euplectus and Apocellus.

The descriptions are very minute and full of detail, perhaps some
may consider them unnecessarily so, and in several places characters
may be given which not only belong to the species described, but to
tlie entire genus or group in question ; I have done this in many cases
inadvertently, and hope that the descriptions will not thereby be
rendered more confusing. It has been my aim not only to describe
the species, but to make a separate study of each, not only in order
to verify previous observations, but to lind if possible other characters
which may serve as bases of classification. If the descriptions be
read carefully it will be seen that occasionally characters are given
which may prove useful in a systematic treatment of the genus, but
which I have not had an opportunity to verify througliout, because of
the very limited material at my dis[)0sal ; nothing is definitely stated
in such cases respecting the value of the character for the [)urposes
above indicated.

In I'elation to minuteness of detail, it may be permitted me to quote
an objection advanced by several entomologists, among whom, un-
fortunately, all those who have had to identify species from descrip-
tions know only too well the late Dr. LeConte must be numbered ; it
depends indirectly upon the methods of observation employed, the
optical means adopted by the author being tlie binocular microscope,
with mechanical universal-jointed stage-clip for holding the pin and
insect together, while the latter is under examination ; it is, in sub-
Cont. Part II. 1 December, 1884.

62 NORTH AMERICAN'

Stance, tliat because tlie majority of entomologists and collector?*
make use of tlie liand-leiis only, sncli an array of minute details in
tlie descriptions is, from tlieir inability to perceive them, not only
unnecessarv, bnt positively detrimental, from its tendency to confuse
tliem, or, in otiier words, that we should give only such cliaracters
as can be seen by imperfectly equipped or unskillful eyes. I need
scarcely say -that the fallacy of such reasoning is obvious, without
alluding to the dullness attributed by implication to the intellects of
our entomological students. We might as reasonably request an
astronomer not to make as refined observations of the planets as liis
telesco[)e is capable of, because the majority of astronomers, using
smaller instruments, cannot employ very precise measurements to
advantage, forgetting that it is only by such careful measurements
that the laws of internal action of tlie solar system can be confirmed;
or, with equal propriety, ask the physicist not to make his determina-
tion of the velocity of light laboriousl}' piecise, because such nicety
cannot be appreciated by the majority of physicists working in other
channels, little thinking that by this means the earth's distance from
the sun may be accurately determined, and the unit thus made known
for the survey of the entire visible universe. Scientillc facts are
valuable for their own sakes, if for nothing else, and it is only by an
accumulation of careful, minute, and conscientious observations that
the mode of working of Nature's laws can be revealed, the statement
applying with equal truth if not with ecjual force to astronomy,
physics, and natural history.

PuiLADELi'iiiA, December 1, 1884.

BEMItII>IO]V latr.

B. Vernilla n. sp. — Dfpn'ssed, black witl\ greenish metallic kistre ;
head and jiioiiotum stroiijily ahitaeeons ; elytra less finely and strongly so,
more polished ; elytra having at the anterior third, from the fourth stria to
the sides, very small short dashes of interstriiil pale brownish-testaceous,
which near the sides, become longer, also laterally and apically through
nearly the posterior third, a broad irregular margin of still paler tint; epi-
pleiirae pale above throughout the length ; under surface nearly piceous-
black, posterior segments paler laterally; legs pale testaceous-brown;
antennae and palpi dark fuscous, basal and apical joints respectively paler.
Head rather large ; eyes very large and convex ; interocular surface rather
broadly swollen along the middle, extending to the epistoma which is very
broadly and feebly emarginate anteriorly throughout, and concentric with

COLEOPTERA. 63

the anterior margin of the labrum ; the latter nearly four times as wide as
long, angles not at all rounded ; epistoma about twiee as wide as long, suture
narrow but distinct ; eyes margined interiorly by a narrow groove ; anterior
seta very large, much larger than the posterior, opposite the anterior two-
fifths of the eye, the latter opposite the posterior fourth ; antennae distinctly
longer than the head and prothorax together, slender, second joint three-
fourths as long as the third, as long as the fifth, very slightly shorter than
the fourth ; mentum tooth very robust, triangular, wider than long, very
prominent ; dental setae very fine ; gular support of mentum bearing along
its basal margin a pair of setae on each side, the outer ones very long and
stout, the inner very fine and short, the pairs widely separated. Prothorax
widest slightly in advance of the middle, where it is very slightly wider than
the head, and one-fourth wider than long ; sides strongly arcuate anteriorly,
strongly convergent toward the base and extremely feebly sinuate .just before
the basal angles ; the latter obtuse and scarcely rounded ; apex broadly and
very feebly emarginate throughout ; apical angles rather narrowly rounded,
slightly obtuse, base broadly and very feebly arcuate, four-fifths as long as
the apex ; anterior lateral seta at two-fifths the length from the apical
angles; disk rather feebly convex; median line very fine, distinct, disap-
pearing near the base ; sides narrowly but strongly reflexed ; longitudinal
carina at the basal angles short ; longitudinal canalicular impressions near
them very strongly marked, short. Elytra widest at the middle, where they
are one-half wider than the pionotum ; sides parallel for four-fifths the length
from the broadly rounded humeral angles, and feebly arcuate ; disk rather
obtusely rounded behind, somewhat depressed, two-thirds longer than wide,
one-half longer than the head and prothorax together, strongly punctato-
striate, intervals flat ; striae becoming obsolete near the apex, except the
seventh and eighth, the latter continuous at apex with the first: punctures
round, moderate in size, deeply impressed, much closer in the two sutural
striae ; scntellar stria short, containing abont ten or eleven punctures ; each
elytron with a discal puncture at the anterior and posterior third, between
the second and third striae, slightly nearer the latter, and a long lateral seta
at one-sixth the length from the base. Legs long and slender ; posterior
femora with three or four discal setae, and two much longer ones along the
lower edge ; corresponding tibia having about five terminal spines, the
longest less than one-half as long as the first joint of the tarsus', the latter
as long as the next three together, and one-third longer than the last :
posterior coxae bearing two erect setae in the middle of the disk arranged
longitudinally. Length 4.8 mm.

Cape May, New Jersey, 1.

The alutaceous appearance produced by tlie minute but very dis-
tinct and even granulation of the head and pronotum is very strongly
marked, and forms a beautiful object with suitable optical power.

B. acticola n. sp. — Depressed ; color black with piceo-aeneous lustre ;
elytra without trace of paler tint anteriorly except between the se\-^^nth and
eighth striae, externally and apically very narrowly paler in tint, with a

04 NORTH AMERICAN

small spot very near and usually detached at one-fourth the lengtli from the
apex ; epipleurae pale throughout ; beneath piceous-black, paler and fuscous
toward the tip of the abdomen ; coxae very dark fuscous ; legs pale flavo-
testaceous ; antennae very dark blackish-piceous, two basal joints and third
and fourth except their tips, pale testaceous ; palpi very dark, terminal
joint paler ; head and pronotum strongly and finely alutaceous ; elytra more
strongly polished, finely reticulated. Head rather large, as wide as long ;
eyes large and very prominent, margined by a narrow groove interiorly ;
interocular surface with two very feeble lateral longitudinal channels ; inter-
mediate surface very broadly and feebly convex ; epistoma slightly more than
twice as wide as long, suture rather distinct, broadly and feebly emarginate
anterioily ; labrum about two and one-half times as wide as long, very feebly
sinuate anteriorly, angles very slightly rounded ; antennae slightly longer
than the head and prothorax together, slender, second joint three-fourths as
long as the third, much shorter than the fifth, joints fou# to six equal and
very slightly shorter than the third ; mentum tooth very much wider than
long, triangular, rounded at tip, very prominent, and scarcely visibly shorter
than the depth of the mental emargination. Prothorax widest very slightly
in advance of the middle, where it is distinctly wider than the head and
scarcely one-fourth wider than long ; sides strongly arcuate anteriorly, mode-
rately convergent and sinuate toward the basal angles, which are slightly
obtuse, not rounded ; base broadly arcuate, about five-sixths as long as the
apex, which is broadly and feebly emarginate throughout ; apical angles
right, narrowly rounded ; disk modeiately convex, edges narrowly and
strongly reflexed ; lateral setae, depression, and ridge near the basal angles
nearly as in rerniihi, except that the latter is longer and bent outwardly
anteriorly. Elytra feebly convex above; sides parallel and feebly arcuate ;
humeral angles broadly rounded ; disk rather acutely rounded behind ; four-
fifths longer than wide, nearly one-half wider than the pronotum, punctato-
striate, intervals nearly fiat ; striae becoming obsolete very near the apices,
except the first, seventh, and eighth which are mutually continuous about
the tips, and the second which is feebly continued to the tip ; punctures
rouncl, rather small, very close in the rows, and very deeply impressed,
scutellar stria short, consisting of about seven punctures ; each elytron has
a discal puncture at the anterior three-tenths, and another at three-fifths
from the base between the second and third striae, much nearer the latter,
and also several small setae along the exterior edge. Scntellum small, semi-
circularly rounded behind. Legs long and slender; posterior femora with
a stout inclined seta on the upper edge near the tip, and two erect slender
and moderately short S(*tae along the lower edge almost evenly trisecting it ;
lorresponding tibia very slender, longest terminal spine one-half as long as
the first tarsal joint, the latter somewhat longer than the next three together.
Length 4.4-4.6 mm.

Atlantic City and Cape ]May, New Jersey, o; Delaware, 1.

Tliis species resembles the last, but may he distinguished by its less
transverse prothorax, more piceons and much less brilliant lustre, and
structure of the antennae and head. Tiie surfaces are very strongly
alutaceous as in vernula.

COLKOPTKUA. G.^

B. inilitare n. sp. — Rath«r depressed, robust ; black, elytra somewhat
piceous posteriorly, not maculate, reflection very dark metallic blackish-
green, elytra more alutaceous : head and prothorax very highly polished,
without trace of reticulation or granulation : legs rather dark rufo-testace-
ous ; palpi and antennae same, the latter very slightly darker toward tij) ;
under surface dark rufo-piceous, coxae not paler. Head moderate in size,
as wide as long ; eyes rather large, moderately prominent ; anterior seta
opposite the middle of the eye, second opposite the posterior limit of the eye ;
interocular surface having two longitudinal irregular and slightly convergent
channels, beginning slightly behind the middle of the eyes and at a short
distance from them ; intermediate surface ratlier strongly convex, continuing
with same curvature along the occiput ; labrum over four times as wide as
long, angles not rounded, apex broadly and feebly emarginate throughout,
concentric with the apical margin of the epistoma ; antennae very long and
slender, one-third longer than the head and prothoi-ax together, basal joint
moderately robust, cylindrical, equal in length to the third, second three-
fourths as long as the third, joints three to six almost exactly equal in length,
very slightly thinner toward base. Prothorax widest at one-third its length
from the apex, where it is distinctly wider than the head and two-fifths wider
than long; sides very strongly arcuate, convergent toward the base, just
before the basal angles distinctly sinuate ; basal angles slightly obtuse, but
not rounded, apical strongly obtuse and slightly rounded ; base feebly
arcuate, except near the basal angle, where it is straight, five-sixths as long
as the apex, which is very broadly and feebly emarginate throughout, almost
straight ; disk moderately convex, edges narrowly reflexed ; setae as in
vernula; median line narrow, distinct, continuous throughout the length;
basal depressions broadly, strongly, and irregularly impressed; cariuae very
short, not attaining the basal angles. Elytra widest at the middle, where
they are two-fifths wider than the pronotum ; sides strongly arcuate ; humeri
very broadly rounded, continuous in curvature with the sides ; disk very
moderately convex, two-thirds longer than wide, one-half longer than the
head and prothorax together, rather abruptly rounded behind, but some-
what acute at the immediate apex ; striae impressed and strongly punctate,
becoming obsolete near the tip, except the sutural and exterior with a short
auxiliary apical stria; intervals rather convex; punctures round, small,
very deeply impressed, rather distant in the series, except in those next to
the suture, where they are slightly snialler and closer ; scutellar stria very
short, having four or five punctures ; each elytron has at the anterior third
a discal puncture in the thii'd striae, and scarcely distinguishable from the
others, except that it is setigerous and behind a slightly longer interval, and
another at three-fourths the length from the base, very near the third stria ;
epipleurae dark rufo-piceous. Legs long and slender ; first joint of the
posterior tarsi slightly longer than the next three together, and three times
as long as the longest tibial spine. Length 5.5 mm.

Willets Point, Long Island, 1.

Distinguisliable from rnpestre by the much more arcuate sides of
the elytra, especially at the humeral angles, and in the total lack of
elytral maculation.

6C NORTH AMKKICAN

At one of the basal angles ol' tlie {)ronotum there is in the type
specimen, a curious morbid growth consisting of two long erect
slender club-shaped members growing from the same root; there is
anotiier cluster of three shorter and more robust, growing from the
elytra near the humeral angle. These growths are probably of a
fungoid nature; they are black and of very firm texture. I have
also noticed them on various parts of the body and in other genera
of Carabidae ; in one case the first tarsal joint was thus infested.
Tiie growth may possibly be the result of some obscure disease.

B. vividlim n. sp. — Form rather slender, very convex. Color through-
out black, witli a dark greenish-black metallic lustre; elytra with a very
small spot and a very narrow border, both near the apices and of very slightly
paler tint, scarcely noticeable ; under surface very dark rufo-piceous ; legs
rather pale, rnfo-testaceous ; basal joint of antennae same, second darker,
remainder dark fuscous ; maxillary palpi very dark fuscous, apical joint pale
testaceous ; liead and prothorax just perceptibly alutaceous, granulations
very fine and feeble, more distinct on the head. Head moderate, slightly
longer than wide ; eyes rather large, very convex, in great part visible from
above; intei'ocular surface broadly and feebly convex along the middle;
lateral snlcations broadly rounded, feeble ; epistomal suture rather distinct ;
anterior angles slightly produced, very acute; apical margin very feebly
emarginate ; labrum scarcely twice as wide as long, squarely truncate ante-
riorly, lateral setae three times as long as the intermediate, which are sub-
equal in length ; anterior supra-orbital seta slightly in advance of the middle
point of the eye, second opposite the posterior fifth ; emargination of mentum
scarcely more than one-third wider than deep, tooth wider than long, about
one-third as long as the depth of the notch ; second joint of the maxillary
palpi but slightly shorter than the third, glabrous, third coarsely and
sparsely setose ; antennae rather short, slightly longer than the head and
protliorax together, second joint two-thirds as long as the third, third dis-
tinctly longer than the fourth, joints four to seven equal in length. Pro-
thorax widest at two-fifths its length from the apex, where it is but slightly
wider than the head and scarcely one-sixth wider than long ; sides mode-
rately arcuate, straight toward the basal angles immediately before which
they are sinuate for a very short distance ; the basal angles almost right,
slightly prwluceil and not rounded ; base broadly arcuate throughout, about
three-fourths as long as tlie apex, which is nearly transverse; apical angles
very slightly produced, rounded ; disk rather convex, transversely rugulose
near the base ; median line very narrow ; edges extremely narrowly but
strongly retlexed ; basal depressions very close to tlie angles, strongly im-
pressed, carinae nearly obsolete. Elytra nearly one-half wider than the
pronotum ; sides parallel for two-thirds the length and ratlier feebly arcuate ;
humeri broadly rounded ; disk acutely rounded behind, rather strongly
convex, about three-fourths longer tlian wide ; striae very feebly impressed,
except the sutural, becoming obsolete in the posterior fourth, strongly punc-
tate ; intervals nearly Hat ; punctures round, deeply impressed, much closer

COl.EOPTERA. 67

in the first and second striae ; scutellar striae of about eisht or nine punc-
tures, rather long; each elytron having a discal puncture at the anterioi
and posterior third, both between the second and third striae, also a long
tn-ect seta at the side near the humeri, and several small ones behind ; epi-
pleurae paler posteriorly. Legs slender ; first joint of the anterior tarsi much
shorter than the next three together, the latter nearly equal, also shorter
than the last, rather robust ; first joint of the posterior equal in length to
the next three together, more than three times as long as the longest apical
spine of the tibiae ; posterior femora with two seta along the lower edge.
Length 4.5-4.8 mm.

Cape May, New Jersey, 4.

This very tine species is retnarkable for its peculiar proiiotum and
convex form, the form of the emargination of the mentiim, and the size
of the tooth, and also the nearly glabrous pa]|)i. In Dr. LeConte's
cUissification of the Carabidae as given by Lacordaire, this author
distinguishes the genus Bembidion by the large size of the tooth,
even stating that the mentum is trilobed, the middle lobe being equal
in length to the lateral. The present species completely prevents
this being used as a distinguishing featuj'e, and in fact in none of
those described at this time does the tooth project as far as the lateral
lobes. It may be possible, however, that the present species should
be placed in Dr. LeConte's genus Ochthedromus.

It should also be stated that in all the species of Bembidion which
I have examined, the sutural striae are continuous to tlie apex where
they are recurved and continue tlience as tlie exterior striae of the
elytra, as is the case in Tachys, and I am therefore at a loss to know
what is meant by Dr. Horn, who, in his revision of the Carabidae,
gives the presence or absence of this character as one of the distin-
guishing features of Tachys and Bembidion.

B. desectlim n. sp. — Form strongly depressed, moderately narrow.
Color of the head and pronotum black, with dark metallic greenish reflection,
of the elytra rather pale piceous-brown throughout without metallic reflec-
tion, polished; under surface pale brownish-rufous throughout, legs and
antennae same, the latter not paler at base. Head moderate, as wide as
long; eyes large, very strongly convex; interocular surface polished, very
feebly alutaceous ; lateral longitudinal impressions short and feeble ; inter-
mediate surface narrowly and feebly convex ; clypeus much more than twice
as wide as long, suture distinct, anterior margin about one-third as long as
the width of head, transversely truncate ; labrum slightly more than twice as
wide as long, anterior margin broadly and rather feebly arcuate ; antennae
slender, much longer than the head and pronotum together, basal joint
slightly shorter than the third, robust, sub-cylindrical, slightly swollen
toward base, truncate at tip, second three-fourths as long as the third, and
very slightly shorter than the fourth, joints four to eight equal; mentum

r>8 NORTH AMKinCAN

very large, emargination small, slightly wider than deep, sides nearly
straight, tooth nearly as long as wide, broadly rounded at tip, simple, muth
less than one-half as long as the depth of the emargination ; terminal joints
of the palpi short, thick, truncate at tip ; third joint of the maxillary rather
long and slender, somewhat sparsely setose. Prothorax widest very slightly
in advance of the middle, where it is distinctly wider than the head, and one-
fourth wider than long; sides strongly arcuate, convergent toward the basal
angles, and excessively feebly and broadly sinuate ; basal angles strongly
obtuse, very feebly produced at the immediate apex, not rounded ; apical very
obtuse, slightly rounded ; base broadly arcuate throughout, about seven-
eighths as long as the apex, which is broadly roundly and feebly emarginate
throughout; disk moderately convex, polish.'d, and not granulose in the
middle, along the sides and base, and especially near the basal angles
strongly and finely granulose ; median line narrow and very distinct ; basal
depressions strongly impressed, rather distant from the angles, connected by
an arcuate feeble impression ; carinae of basal angles rather feeble, sinuate
externally, and diverging very slightly from tiie lateral edges, becoming
obsolete beyond the basal fourth ; lateral edges and setae as in vernuln.
Elytra widest at about the middle, where they are about one-third wider
than the pronotum ; sides parallel and rather strongly arcuate for nearly
seven-eighths the length from the base ; liumeri not very broadly rounded ;
disk four-fifths longer than wide, somewhat acutely rounded behind, fully
two-thirds longer than the head and pronotum together, very flat, abruptly
declivous at the sides, rather strongly granulose thronghout, narrowly and
istinctly striate ; striae punctate, not becoming obsolete posteriorly, sutural
very strong throughout, acutely recurved at tip, returning as the second,
and, after a short partial interruption, as the eighth ; also, at the point of
origin of the eighth, there is a branch which is continued anteriorly as the
fifth, and by a very feeble branch as the seventh ; the sixth terminates
before reaching this last point of separation at one-sixth the length from the
apex ; third and fourth striae mutually recurved and continuous at one-
tenth the length from the apex ; punctures very small, round, deeply im-
pressed, closely placed in the striae, not closer in the sutural rows ; scutellar
row of about nine punctures ; each elytron has at three- tenths and two-tliirds
the length from the base a discal puncture, between the second and third
striae, and another just beyond and exterior to the point of junction of the
third and fourth striae, and adjoining the strongly oblique portion of the
fifth stria, much nearer the margin than the apical angle. Legs slender ;
posterior tarsi short, slender, first joint as long as the next three together,
and slightly shorter than the last. Length 4.0 mm.

Arizona (Morrison), 3.

A reniarkable species, very depressed ; readily known by its j>ale
unieolorous elytra, peculiar sliort basal joint of the antennae wliieii is
enlarjied toward base reminding us of the corresponding joint in
Tricliopteryx, and by tlie sculpture of the elytra, more particularly
toward the apices. It is also ratiier remarkable from the fact that
the first joint of the posterior tarsi is sliorter than the last.

COLEOPTERA. 69

TACHYS Steph.

T. OCCllltator n. sp. — Form rather robust, depressed. Color above
reddish-testaceous, head nearly black ; beneath reddish-testaceous, except
the abdomen, which is blackish-fuscous ; legs and elytral epipleurae pale
fulvo-testaceous ; antennae dark brown, except the two basal joints which
are slight]}^ paler : integuments highly polished, impunctate, and translu-
cent. Head moderate, longer than wide ; eyes moderate, somewhat promi-
nent, in great part visible from above, coarsely granulated ; interocular
surface very feebly convex, finely and distinctly reticulated ; front of epis-
toma one-half as long as the distance between the eyes, transversely truncate
anteriorly, sides thence moderately divergent, narrowly elevated, and nearly
straight to the anterior limits of the eyes, punctures very small, distant from
the anterior angles which are very obtuse, and scarcely rounded ; from the
epistomal punctures extends on each side a very broadly and irregularly
impressed channel more than one-third the total length of the head, the two
being parallel ; the ocular borders are elevated, the elevation becoming
narrower and more acutely rounded posteriorly, taking the form of supra-
ocular ridges ; epistomal suture almost completely obsolete ; labrum large,
one-half wider than long, transversely truncate anteriorly, angles rounded,
sides parallel ; antennae about as long as the head and prothorax together,
slender, basal joint somewhat robust, larger than the second, second equal
in length to and scarcely more robust than the third. Prothorax widest at
about one-third its length from the apex, where it is but very slightly wider
than the head, and one-half wider than long ; sides rather strongly arcuate,
feebly sinuate toward the basal angles, which are right, and not at all
rounded, very prominent ; base transverse at the sides, broadly arcuate in
the middle ; apex just visibly longer than the base, broadly and rather
feebly emarginate ; apical angles very obtuse, very slightly rounded ; anterior
setae just within the border at one-third the length from the apex, posterior
on the acute edge slightly before the basal angles ; disk broadly and almost
evenly convex throughout ; median groove extremely fine and feeble ; at the
base there is a broadly arcuate and unbroken line of minute foveae opposite
the arcuate portion of the basal edge ; minute tuberculations within the basal
angles entirely wanting. Scutellum hastate, small, slightly longer than
wide. Elytra at base distinctly wider than the pronotum ; sides parallel
and very feebly arcuate for three-fourths the length from the base, where
there is a large marginal seta ; disk obtusely rounded behind, broadly and
rather feebly convex, widest at the middle, where it is about threVfourths
longer than wide ; sutural striae strongly marked, arcuate without, then a
second very feeble stria, and beyond very feeble traces of a third on each
elytron; in the middle and two-fifths the width from the suture a minute
setigerous puncture, and another discal puncture in the same line at one-
sixth the length from the apices ; sides feebly and narrowly reflexed with a
short setigerous humeral channel very close to the edge, and, through the
posterior two-fifths, a more deeply impressed and irregular channel near the
border, and a very short oblique discal one, both coalescing near the elytral
plica with the marginal continuation of the sutural stria. Legs long and

70 NORTH AMP^KICAN

slendf r, sparsely pubescent. Abdomen rather strongly convex, very sparsely
clothed witli short erect pubescence toward tip; last segment having four
equal equidistant marginal setae. Length 2.8 mm.

Cape May, New Jersey, 1.

FouikI under duhri? on tlie beach ; it ?onie\vliat resembles scitnlus
in foini of body, and more particularly in the two small f'oraniiniform
])unctiires behind and ratlier distant from the mentuni tootli ; the
dental setae of the mentum are close to tiie base of the tooth and are
rather ap[»roximate.

The impressed setigerous channel begun at the humeri and again
resumed toward the apices, is a generic character, but the short
oblique apical stria seems to vary somewhat in obliquity; in the
present species it is very widely divergent, while in gemellus it is
very close to the marginal channel. The curious punctures behind
the mentum tooth appear to be a characteristic of the broadly de-
pressed species allied to scltulus, there being no trace of them in
those species similar in form to incnri-iis or gemellus ; I have, there-
fore, restored Ciiaudoir's genus for the latter.

BARYTACIIYS Chaud.

B. glosseilia n. sp. — Form robust, short, convex ; sides strongly arcuate.
Color above dark rufo-testaceous ; head slightly darker beneath, rufo-testa-
ceous ; abdomen piceous-black ; legs pale fulvous, antennae same toward
base, brownish toward tip; integuments very translucent and very highly
jiolished. Head short and robust, scarcely as long as wide ; eyes moderate,
rather prominent, very coarsely granulate ; iiiterocular surface feebly con-
vex, liaving an irregularly impressed very short channel on each side over
the eye, and attaining the epistomal suture ; anterior margin of epistoma
one-third as long as the distance between the eyes, broadly and feebly
sinuate throughout, angles extremely well marked and prominent, sides
thence widely divergcuit, deeply and evenly sinuate to the anterior limits of
tiie eyes ; epistoma but slightly wider than long, suture distinct, setae at
two-lifths its length from the anterior angles ; labrum very short, more than
four times as wide as long, finely rugulose anteriorly, broadly and feebly
sinuate throughout ; antennae distinctly longer than the head and prothorax
together, basal joint ratlier robust, first three joints sub-equal in length,
decreasing almost uniformly in thickness. Prothorax widest at nearly two-
fifths its lengtli from the apex, where it is much wider than the head, and
one-third wider than long: sides strongly arcuate, very feeV)ly convergent
posteriorly, where they become feebly sinuate for a very sliort distance in
front of the basal angles, the latter prominent and not at all rounded ; base
and apex about equal in length, both transverse and straight ; disk rather
feebly convex, except towar<l the apical angles where it is very strongly so,
having at each side, at two-fifths the length from the apex, a small erect

COLEOPTERA. 71

sL'ta ; lateral borders very narrowly reflexed ; modian groove very fine and
feeble; near tlie base there is a broadly arcuate row of minute punctiform
loveae, nearly in mutual contact ; there is also a minute tuberculation just
inside of each basal angle. Scutellum small, angulate behind, very slightly
wider than long, sides rounded, slightly constricted at base. Elytra at base
just visibly wider than the pronotum ; sides parallel and rather strongly
arcuate for two-thirds the length from the humeri, thence rather strongly
convergent ; disk rather acutely rounded behind, widest at one-third the
length from the base, where it is scarcely two-fifths longer than wide ;
humeral angles broadly rounded ; strongly convex, impunctate ; sutural
striae distinct, fine, single, slightly arcuate, with excessively feeble traces of
a second stria ; there are also on each elytron two punctiform impressions at
the base, and two extremely minute and feeble punctures or eroded setiger-
ous impressions at one-third the width from the suture, and just before and
behind the middle ; lateral edges narrowly rellexed ; on the extreme Hanks
near the humeri there is on each side a short irregular impressed channel,
with two or three setigerous punctures near its point of origin ; epipleurae
wide at the base, becoming rather abruptly much narrower at one-third the
length from the humeri, pale in color. Abdomen nearly flat, edges of the
segments abruptly and very narrowly paler. Legs long and slender.
Length 2.0 mm.

Pennsylvania, near Pliihulelphia, 2.

A very robust little species, resembling incurvus, but much shorter
in proportion to its width ; tlie greatest difference is perhaps in tlie
head, which is much shorter and broader and with much more coarsely
granulated eyes in glossema; tlie distance between the front coxaj is
also relatively greater in the latter.

B. gemellus n. sp. — Form very slender, convex ; sides arcuate. Above
very uniformly dark rufous throughout, antennae testaceous toward base,
fuscous toward tip ; under surface throughout of same color as the upper,
except along the lateral margins of the abdomen, where it becomes castane-
ous ; integuments polished, rather opaque ; legs flavate, translucent. Head
rather small, as long as wide ; eyes moderate, somewhat prominent, coarsely
graniilated ; impressions above the eye near the suture very feeble ; epis-
tomal apex slightly longer than one-third the distance between the eyes,
very feebly sinuate, angles obtuse and slightly rounded, sides thence widely
divergent and feebly sinuate to the anterior limits of the eyes ; labrum large,
about twice as wide as long, minutely and strongly reticulated throughout,
apex broadly sinuate ; epistoma about one-half wider than long, setae at
about one-third its length from the anterior angles ; antennae short, scarcely
as long as the head and prothorax together, basal joint robust, second
slightly shorter than the third. Prothorax widest at two-fifths the length
from the apex, where it is much wider than the head, and one-half wider
than long ; sides broadly and moderately arcuate to within a very short
distance of the basal angles, where they become very feebly sinuate ; basal

72 NOKTll AMERICAN

angles obtuse, prominent, and not at all rounded, setigerous ; anterior angles
rather broadly rounded ; base and apex about equal in length, transverse
and nearly straight ; disk convex, more strongly so toward the anterior
angles ; lateral setae at two-fifths the length from the apical angles ; border
narrowly retlexed , median groove very fine and feeble, extending from the
base nearly to tlie apex ; very near the base there is a broadly arcuate im-
pressed groove entirely interrupted in the middle, but coarsely and feebly
punctate toward the sides, tuberculatlon near each basal angle extremely
feeble. Scutellum very small, distinctly wider than long, angulate behind,
sides rounded, slightly constricted at base. Elytra at base scarcely wider
than the pronotum ; sides parallel and moderately arcuate for nearly two-
thirds the length, thence convergent ; disk rather acutely rounded behind,
widest at about one-third the length from the base, where it is two-thirds
longer than wide, strongly convex ; sutural striae fine, strong, feebly arcuate,
with distinct traces of a second stria; each elytron has on the disk two
minute setigerous punctures as in g/ossema, and, at the base, a circular
setigerous verrucation near the scutellum ; edges narrowly reflexed ; humeri
broadly rounded, near wliich there is a short irregularly impressed channel
having four small setigerous punctures nearly equidistant and scattered
along its entire length ; there is also a large setigerous puncture posteriorly
at the edge ; epipleurae wide at the basal third, where the inferior edge is
feebly sinuate. Abdomen feebly convex ; terminal segment with two apical
pairs of setae. Legs long and slender ; posterior trochanter with one discal
seta; posterior femora with three equidistant erect setae. Length 2.4 mm.

Cape May, New Jersey, ^.

Taken under rubbish on the sea-beaeh ; it resembles at first sight
incinriis, but differs greatly in tlie color, want of elytral maculations,
niueli more slender form of body, opatiue integuments, and many
minor eliaracters, among wliicli may be mentioned the transversely
arcuate furrow at the base of the pronotum, which is densely and
evenly foveate throughout its length in inciirvus.

PTEROSTICHUS Bonelli.

P. lllclllllAttailis n. sj). — Form nearly as in tc.raiuts. Upper surface
metallic, higlily jxilished, rellecting a brilliant reddish tint from tlie middle
portions, and a brilliant nu-tallic green from the refiexed portions at the
sides ; under surface polished, intense black without colored reUections ; legs
and palpi same ; antennae piceous, becoming dark reddish-fuscous toward
base. Head rather small, longer than wide ; eyes very large, prominent ;
interocular surface moderately convex, very feebly rugnlose toward the eyes,
extremely minutely and irregularly punctate more especially toward tlie
eyes, polished, with brilliant and varied metallic red and green reflections ;
labrum and maiidihles black, the former four-fifths wider than long, almost
transversely truncate anteriorly, the latter very robust, rugnlose or furrowed
on the inner surface ; antennae slightly longer than the heal and prothorax

COLEOPTEUA, 73

together, slender, three basal joints carinate posteriorly and glahrous, carina
of the first becoming obsolete at two-thirds its length from the base, basal
joint sub-cylindrical, twice as long as wide, bearing near the tip a seta as
long as the first two joints together, second joint one-third as long as the
third ; palpi truncate at tip, flattened, truncation in the form of a narrow
rectangle, the surface of which is deeply excavated; labial very slender
cylindrical, second joint more than one-third longer than the third, bearino-
two long setae ; maxillary palpi rather long and stout, entirely glabrous
second joint very finely strigose, third slightly longer than the fourth ;
mentura tootli vei'y broad, squarely truncate or very feebly sinuate at tip ;
ligula rounded at tip, broadly swollen along the middle, bearing along the
apical edge, which is retlexed, two setae. Prothorax widest at the middle,
where it is scarcely' one-third wider than long; sides very strongly and
nearly evenly arcuate throughout ; apex slightly shorter than the base ;
basal angles obtuse, narrowly rounded, ajjical slightly acute, narrowly
rounded ; base transverse, apex broadly emarginate ; disk rather feebly
convex, transversely creased ; median line strong, very feeble just behind
.the centre of the disk ; basal impressions rather finely and irregularly punc-
tate, the inner ones more than twice as long as the outer, and, with the
median line, dividing the disk nearly equally ; margin feebly reflexed, be-
coming much more broadly and feebly so posteriorly ; posterior angles havino-
an erect seta, anterior setae well within the edge. Elytra at base slightly
narrower than the pronotum ; sides parallel and rather strongly arcuate for
three-fourths the length from the base ; disk rather acutely rounded behind,
moderately convex ; striae very deeply impressed, very feebly and distantly
punctulate ; intervals strongly convex, very finely and irregularly creased
and finely alutaceous, third interval having six distinct punctures near the
third stria ; basal carina strong, attained by all the striae except tiie scutellar ;
three-fourths longer than the head and pronotum together. Legs long and
slender ; first four joints of the posterior tarsi strongly grooved ; abdomen
punctate toward the base, strongly convex, last segment not modified. Meta-
sternum and its episterna coarsely, deeply, and coalescently punctate, the
latter longer than wide. Length 13.0 mm. ; width 5.0 mm.

Willets Point, New York Harbor. 1 %.

This very fine species may be [)lace(l at present immediately after
lucublandus in Dr. LeConte's table of Pterostichus ; it may be dis-
tinguished at once from that species by many characters, chief amongst
which may be mentioned the verj' strongly tn-cuate sides of the pro-
thorax, very black legs and tarsi, and the six dorsal punctures.

CRATACAIVTHUS Dejean.

On carefully looking over my specimens of this genus, which are
generally included under the name dubius, it appears to me evident
that there are several distinct species which may be separated by the
following table : —

74 NORTH AMKUICAN

Epiplcuiae of elytra rufous or rufo-castaneous ; eyes very strongly convex ;
legs pale,
lilytra fully twice as long as the pronotum.

Labruui short ; head much narrower than the prothorax, the latter

about as wide as the elytra ; posterior margin of pronotum but very

slightly wider in tlie middle than near the basal angles... 1. dllbilis.

Labrum long ; prothorax scarcely perceptibly wider than the head, and

distinctly narrower than the elytra, posterior margin nearly twice as

wide in the middle as at the posterior angles 2. litoreiis.

Elytra scarcely twice as long as the prothorax, and equal to it in width ;
labrum very long ; basal margin of pronotum much wider in the

middle 3. liisectus.

Epipleurae of elytra black ; eyes much less convex ; legs dark piccDUS.

4. f^xaiius.

1. C dllbillS (Beauv.) — Ins. Afr. et Am. p. 8, t. IT), f. 7; Peniisi/Iraniciis
Dej. — First joint of antenna three-fourths longer than wide, .sub-cylindrical,
rather abruptly narrowed at base, second two-thirds as long as the third, and
just visibly .shorter than the fourth, fourth slightly shorter than the fifth,
joints five and six equal in length, one-fourth longer than wide, outer joints
from the fourth very strongly compressed. Middle femora having on its lower
face a row of five erect setae, beginning at the base, nearly parallel to the
axis and above it, also another row of about seven setae from the middle of
the base obliquely to tlie lower edge beyond the middle, also a short straight
row of four short stitf setae near the tip and from the upper edge obliquely
and inwardly to the median line where it ends; in addition two long erect
setae in the basal third of the lower edge, and a row of equidistant very short
inclined setae along the entire upper edge; corresponding tibiae scarcely as
long as the femora ; posterior tibia slightly longer than the femur, first joint
of the tarsus very slightly longer than the second, last joint distinctly shorter
than the first two together, equal in length to the second and third together.
Length 9.8 mm.

New Jersey ; District of Colun)bia.

2. C. litoreilS n. sp. — Antennae much shorter, liasal joint twice as long
as wide, gradually narrowed toward base, second two-thirds as long as the
third, about three-fourths as long as the fourth, fourth slightly longer than
the filth, joints five to eight eijual in length, the former one-fifth longer than
wide. Middle fi-mora having three long erect setae along the lower edge
exteriorly, and three along the same edge interiorly ; median oblique row of
about five erect setae on the lower face reaching the lower edge at two-thirds
tlie length from the base, also an upper marginal row of about three or four
setae; posterior tibiae slightly longer than the femora, first joint of the tarsus
as in <lnl>iiis. Length 8.0 mm.

Atluiilic •'ity, New Jersey.

The smallest species of the geinis thus far described ; it is very
distinct in facies, the very narrow jirothorax and relatively broad
atid deflexed head giving it a very peculiar appearance.

COI-EOPTERA. 75

3. C 'bisectUS n. sp. — FiiHt joint of antennae twice as long as wide,
very slightly narrowed toward base, second scarcely more than three-lifths as
long as tlie third, and scarcely three-fourths as long as the fourth, fourth
distinctly shorter than the fifth, joints five to seven almost exactly ecjual,
fully one-third longer than wide ; lower surface and edges of middle femora
with setae nearly as in ilubius, except that the -upper discal line is very much
further from the axis, and very near the upper edge ; first joint of the poste-
rior tarsus much longer than the second, as long as the third and fourth
together, fifth slightly longer than the second and third together. Length
9.0 mm.

Fairinount Park, Philadelpliia.

Distinguished by the short and narrow elytra, the base of the pro-
notuni almost dividing tlie body into two equal portions.

4. C. texailUS n. sp. — First joint of antennae twice as long as wide,
sub-cylindrical, very feebly narrowed toward base, second longer than in
liiseclus, nearly one-half longer than wide, two-thirds as long as the third,
three-fourths as long as the fourth, fourth as long as the fifth, which is nearly
one-half longer than wide. Antennae much darker than in the preceding
species. Middle femora nearly as in the preceding species ; tibiae and tarsi
black throughout; posterior tibiae much longer than the femora; first joint
of the tarsus much longer than the second, as long as the third and fourth
together, fifth about as long as the first two together. Length 10.8 mm.

Texas.

This species is abundantly distinguished from the otiiers by the
characters given. The head is relatively longer and narrower. The
iront is more strongly declivous than in any except Utoreus.

DISCOD£RUS Lee.

I>. pinguis n. sp. — Form robust, moderately convex ; sides parallel.
Color piceous- black, legs and under surface concolorous and slightly paler;
when immature piceous-brown throughout, legs paler ; integuments very
minutely reticulate, moderately shining. Head robust, wider than long;
surface moderately convex ; supra-orbital seta opposite the posterior limit of
the eye ; epistomal suture transverse and distinct, anterior edge broadly and
feebly emarginate ; labrum large, sides near the base very feebly divergent
anteriorly, then strongly convergent to the apical angles, which are rounded,
anterior edge strongly sinuate, disk i:)aler in color; emargination of mentum
more tlian twice as wide as deep, very broadly rounded at the bottom, sides
feebly arcuate, not toothed ; seco;jd joint of labial palpi much longer than
the third ; sub-mentum bearing upon the disk at each extremity a close pair
of setae ; antennae rather slender, fuscous, paler at base, second joint scarcely
one-half as long as the third, third distinctly loiiger than the fourth, joints
four to eight decreasing distinctly in length. Prothorax widest very slightly
before the middle, where it is four-fifths wider than the head and two-fifths
wider than long ; sides strongly and almost evenly arcuate throughout ;

76 NORTH AMERICAN

basal angle'; broadly rounded ; base distinctly broader than the apex, nearly
transverse, broadly sinuate between the basal angles ; apex rather strongly
euiarginate throughout, angles very narrowly rounded ; disk rather strongly
convex, broadly depressed toward the base and basal angles; median line
rather feebly impressed ; lateral border narrow, rellexed, edges thick ; apical
border narrow, becoming nearly obsolete in the middle, basal continuous
with that of the sides, only interrupted in a very short space in the middle ;
surface impiinctate, except a few excessively feeble punctures along the lateral
edges toward the base, and a very few near the basal angles. Elytra scarcely
visibly wider than the pronotum ; sides parallel and feebly arcuate for three-
fourths the length, then obtusely rounded behind, more acutely so at the
immediate apex ; disk convex ; striae strongly impressed ; intervals very
feebly convex, having numerous, large, very feeble, rounded impressions,
second, fifth, and seventh striae punctate, punctures small, rather distinct.
Legs rather slender ; middle tibiae strongly bent ; anterior tarsi distinctly
dilated, very coarsely dentate over the lower surface ; first joint of the poste-
rior tarsi slightly shorter than the next three together ; anterior coxae widely
separated, process nearly fiat, circularly rounded, large; middle coxae dis-
tinctly sei)arated. Metasternal episterna fully three-fourths longer than wide.
Length 8.r)-10.5 mm.

Arizona, G.

Described from t!ie male ; it appears to be common in Arizona,
and varies much in color, probably from immaturity. This species
is described as new after reading Di"- Horn's description of robnstns,
under which name I had recorded these specimens. In the descrip-
tion of rohiistiis, the prothorax is said to be distinctly narrower at
base than at apex, and the metasternal episterna arc said to be
scarcely lonjxer than wide; these measurements are so distinctly and
positively reversed in the present species that the two are necessarily
distinct, if all the cliaracters are correctly stated.

SELEXOPIIOKUS Dej.

S. perpolitllS n. sp. — Form somewhat robust and depressed. Color
above black, beneath piceous-black, abdomen wry slightly paler. Head
moderate in size, slightly longer than wide; eyes large, sligiitly ]>romincnt,
in most part visible from above, inner margin strongly sinuate; interocular
surface feebly convex, scarcely four times as wide as the eye, polished,
excessively feebly rugulose, covered sparsely behind with very fine feeble
eroded impressions ; supra-ocular setae rather distant from the eye; labrum
very large, nearly one-half wider than long, feebly and narrowly sinuate
anteriorly, anterior angles very broadly rounded, sides thence rather strongly
divergent to within a short distance of the base, where they become distinctly
convergent ; epistomal setae slightly distant from the anterior angles ; max-
illary palpi slender, third joint three-fourths as long as the fourth; second
joint of the labial i)alpi distinctly shorter than the third, which is a segment

COLEOPTERA. 77

of a circle in outline, and somewhat robust; antennae flavate througliout,
slender, distinctly shorter than the hend and prothorax together, second
joint three-fifths as long as the third, third slightly longer than the fourth.
Prothorax widest slightly in advance of the middle, where it is about three-
fourths wider than the head, and about one-third wider than long; sides
evenly and rather strongly arcuate, more abruptly convergent anteriorly
than posteriorly ; apex and base about equal in length, the former broadly
and strongly sinuate, the latter transverse ; apical angles rather acutely
rounded ; basal angles rather broadly rounded ; disk very feebly convex,
highly polished, scarcely visibly impressed toward the basal angles ; border
strongly and narrowly reflexed, bearing on each side at two-fifths the length
from the apex a long erect seta ; median groove very fine ; surface almost
impunctate in the middle, finely, feebly, and rather closely punctulate ante-
riorly and toward the sides, the latter gradually merging into a very large
area along the base and basal angles, which is strongly, very densely, and
irregularly punctate. Scutellum triangular, slightly wider than long. Elytra
at base distinctly narrower than the pronotum ; sides parallel and very feebly
arcuate for three-fourths the lengtli, thence strongly convergent behind ; disk
rather acutely rounded at the immediate apex ; inner apical angles acutely
i-ounded ; nearly twice as long as the head and prothorax together, and
about twice as long as wide, broadly convex, more strongly so jjosteriorly,
extremely highly polished, and very feebly opalescent ; striae very fine and
ratlier feebly impressed ; intervals nearly flat, excessively minutely punctu-
late ; in tlie eighth and ninth intervals the punctures become very close,
much deeper, setigerous, and abruptly rather conspicuous ; the ninth interval
liears a row of about five very large setigerous punctures near the humeri,
and another series of about ten very irregular ones near the apices ; the
jiunctures of the discal series near the second, fifth, and seventh striae,
about ten in number, are very feeble and minute. The edges of the elytra
are rather strongly reflexed, and the first elytral stria is continuous with the
basal groove, whitdi is very strong, and not attained by any of the other
striae ; the punctures in the basal portions of the elytra are close, fine, and
distinct ; the scutellar stria is very short, and proceeds from the setigerous
verrucation at the origin of the second stria. Legs long and slender, flavate,
opaque. Abdomen convex, last segment rather long, bisetose, paler in color.
Length 8.0-9.5 mm.

Texas, G.

The Jibove description is taken from tiie female ; in the male, the
first joint of tiie anterior and middle larsi is equal in lengtii to the
second ; the first four joints strongly and ecjually dilated in both pairs,
and clothed very densely beneath with two series of squaniules ; the
posterior tarsi in the same sex are long and slender, first joint nearly
equal in length to the next tliree together, joints two to four uniformly
and rapidly decreasing in length, second shorter than the next two
together, and very slightly longer than the last, which is very slender
and slightly arcuate ; claws strong. The above specimens I dis-
Cont. Part II. 2 December, 1S84.

/8 NORTH AMERICAN COLEOPTERA.

covered mixerl with a series of S. opallnvs in my cabinet. It differs
from (liat species in its mudi less transverse protliorax, whicli is very
densely and closely punctate at base, in its relatively -more slender
form, particularly of tbe head, and in its scarcely perceptibly opales-
cent elytra. In the male tiie distance between the apical angles of
the pronotum is slightly less than the length of base.

STEIVOLOPHIIS Dej.

S. scif IlllIS n. sp. — Form slightly robust, about two and one-half timfs
as long as wide, somewhat depressed. Color above black throughout, be-
neath piceous-black, scarcely paler ; legs pale testaceous ; antennae brown,
testaceous at base; oral organs dark rufo-testaceous, strongly translucent.
Head moderate, as wide as long ; eyes large, prominent ; interocular surface
four times as wide as the eye, polished, inipunctate, nearly tlat, having on
each side, at a short distance from the anterior limit of the eye, a short
curvate, oblique, and distinctly marked canaliculation ; epistomal setae far
from the anterior angles : labrum very short, over four times as wide as long,
angles rounded, very broailly and feebly sinuate anteriorly ; mandibles very
short, robust, abruptly and finely acuminate at tip, feebly arcuate ; para-
glossae excessively thi-n and transparent ; third joint of the maxillary palpi
very short, scarcely more than one-half as long as the last, which is robust
and gradually and finely acuminate ; third joint of labial palpi one-third
longer tlian the second, rather robust, obliquely and finely acuminate ; gular
support of the meutum bearing a long seta at each side near the centre ;
ligula obtusely and broadly arcuate anteriorly, having four discal setae ;
antennae distinctly longer than the head and protliorax together, very
slender, second joint two-thirds as long as the third, third and fourth equal
in length, the former slightly more slender. Prothorax nearly one-half
wider than tlie head ; base and apex equal in length, the former very feebly
sinuate in the middle, the latter broadly and strongly sinuate; anterior
angles rather acutely rounded ; basal angles obsolete, very broadly rounded,
continuous in curvature with the sides and base; disk slightly wider than
long, feebly convex; sides moderately and nearly evenly arcuate; margin
narrowly reflexed, disai)pearing toward the middle of the base ; medial
groove distinctly marked, narrow, extending from base to apex ; surface im-
punctate, polished, very finely, feebly, and sparsely punctulate in a limited
area on each side of the nnddle at the base where the disk is also very
broadly and feebly impressed ; at each side at one-third the length from the
apical an<;les there is a long erect seta. Scutellum small, wider than long.
Elytra at base very slightly wider than the pronotum ; sides parallel, evenly
and moderately arcuate for four-fifths the length posteriorly, abruptly,
evenly, and very obtusely rounded behind ; inner apical angles rounded ;
disk slightly more than one-half longer than the head and prothorax
lo'u'ther, broadly convex, minutely and feebly granulose, polished; striae
very fine; intervals nearly flat ; scutellar stria between the first and second
elvtral striae rather long; at «me-fourth the length from the apices there is
a ndnute setigerous puncture on each elytron just beyond the second stria.

COLEOPTKUA. 79

Legs rather long and slender ; fourth joints of the anterior and middle tarsi
strongly hilobed ; first joint of the posterior tarsi scarcely as long as the next
two together. Abdomen strongly convex ; terminal segment very broadly
rounded at tij>, where there are four equal widely distant setae. Length
3.8-4.2 mm.

Pennsylvania, near Philadclpliia, 2.

Somewhat ix'sembles conjnnctus Say, but is more elongated, and
the pronotum is very much less transverse ; it is also black, while in
the species referred to the prothorax is invariably rufo-piceous or
rufous; it also re^^embles rotandatus Lee, but the pronotum and
elytra are not margined witli brown, the former is distinctly wider
tlian long, and its basal impressions are not punctiform.

BRADYCELLUS Erichs.

In Dr. LeConte's table of this genus (Proc. Acad. Nat. Sci. 1868,
p. 381), this author states that B. paraUelus appears to him to be
a race of i-npestris. I have before me a specimen which is more
elongate tlian rupestris, and in which the pronotum is relatively more
transverse ; the color is nearly uniformly piceous. If this be the
paraUelus above alluded to — and I have scarcely any doubt of it —
there can be no question of the validity of the latter. Besides the
differences noted, the emargination of the mentum is strikingly
different in the two species, being very broad and shallow in rupes-
tris, and much deeper in paraUelus. In both these species the second
joint of the labial palpi is distinctly shorter than the third.

GLYCERINS n. gen.

This genus is founded upon a peculiar species hitherto associated
with Acu|)alpus, Bradycellus, and Tacl)ycellus in succession. It
differs from them in the following characters, and stands, perhaps,
properly between the last two.

Prothorax having along the sides of the disk near the edge a row of many
erect stiff bristles, becoming more distant toward the posterior angles.
Scutellum very short and broad, scarcely entering the elytral disk behind
the basal carina. Disk of elytra perfectly smooth, with scarcely any trace of
striae except a single well-marked sutural stria. Third joint of the antennae
scarcely pubescent, but having numerous stiff setae ; epistoma having two
prominent setigerous punctures at each anterior angle.

The remaining characters are nearly those of the above-mentioned
genera, but the many setae of the pronotum appears to be a character
of generic importance. Our single species is —

G. nitidus (Dej.).— Spec. IV. p. 474.

HO NORTH AMERICAN

C'alil'oriiia and Arizona.

The jrenera in tlii,< portion of the Harpalini may be distinguished
as follows: —

Mentum tooth very long and slender, as long as or longer than the lateral

lohes of the mentum Amerinus.

Mentum tooth short, much shorter than the lateral lohes of the mentum.

Antennae with two glabrous joints Bradycellus.

Antennae with three glabrous joints.

Pronotum having but one lateral seta '. ...Tachycellus.

Pronotum having many lateral setae Glycerius.

Mentum not toothed Acupalpus.

As additional cliaracters we may mention tlic facts observed by
Dr. Horn, that the under surface of the middle tarsi in the male is
provided witli squamnles in Amerinus and devoid of squamules in
liradycelhis, and tliat in Bradycellus there is usually but one pubes-
cent spot in the middle of the second ventral sejiment, there being
two in Glycerius and none in Tachycellus. Dr. LeConte has, in
addition, made known the fact in regard to Glycerius iiitidus, that
" traces of a long .scutellar stria are apparent in some specimens of
this species, which thus differs from all the otliers [Bradycellus] in
which tlie midille tarsi of the male are not fnrnislied witli papillae."
(Proc. Ac. Phil. 18(j8, j). o.Sl). I have not attempted to coniirm any
of tliese stateinenls, ami they are sim[>ly given as published by the
above-mentioned authors.

BIDESSrS Sharp.

B. ni^rimis n. sp. — Form rather elongated, depressed. Pubescence
excessively sparse, fine, and very short, very inconspicuous; integuments
polished ; color above black, head, lateral portions of the pronotum piceo-
testaceous, also very slightly paler at the borders of the elytra toward the
humeri ; under surface black, prosternum and head paler ; antennae intense
black, glabrous, slightly i)aler piceo-testaceous toward base. Head scarcely
twice as wide as long, strongly arcuate anteriorly ; surface very feebly con-
vex, very minutely, sparsely, and irregularly punctate, more strongly so
posteriorly ; eyes large, not at all prominent ; antennae as long as the head
and pronotum together, second joint much longer than the first, both slightly
more robust than the third, remaining joints slightly flattened, third nearly
two-thirds longer than wide, two-thirds longer than the fourth, and very
slightly longer than the fifth, fourth very slightly wider than long, eleventh
as long as the two i)receding together and narrower, very thin, finely acumi-
nate, cylindrical. Prothorax vjder tiian the head, about two and one-third
times wider than its medial length ; sides scarcely visibly convergent from
the basal to the apical angles, and slightly arcuate throughout ; apex broadly
and strongly emarginate throngiiout for the basal ])<)rtions of the head,

COLKOPTKRA. 81

emargination nearly transverse at the bottom, sides abruptly nearly paralU;! ;
apical angles acutely rounded ; base very slightly longer than tlie apex,
transverse, except through a short space in the middle, where the margin is
abruptly and strongly arcuate ; disk feebly convex, rather finely, sparsely,
and irregularly jjunctate ; lateral basal canaliculations sinuate, narrow and
strong toward the base, and continued posteriorly for a short distance on the
elytra, the latter portion being straight and slightly nearer the median line,
becoming obsolete anteriorly on the pronotum slightly beyond the middle.
Scutellura completely invisible. Elytra at base as wide as the pronotum ;
sides parallel for two-thirds the length from the humeri, and moderately
arcuate ; disk acutely rounded behind, nearly three-fifths longer than wide,
and more than twice as long as the head and pronotum together, widest at
two-fifths the length from the base ; disk moderately convex above, strongly
and rather abruptly declivous at the sides, strongly, rather coarsely, closely,
and evenly punctate ; punctures rounded, without visible arrangement, and
finer toward the sides. Abdomen polished, convex, with a few rather large
widely scattered punctures near the base ; last three segments very short.
Legs slender ; femora and basal half of the tibiae reddish-testaceous,
remainder piceous-black ; first joint of the posterior tarsi slightly shorter
than the next two together. Length 1.9—2.0 mm.

California, 2.

Tins species somewliat resembles ajfftnis, but differs in its much
more slender form, and greatly in tlie coloration; the elytral punctua-
tion is coarser than in that species. The female is broader and more
rectangular in outline than the male, but does not differ in color or
punctuation. There is no trace of a raised front margin on the head.

Although aware of the variations ascril)ed by Dr. Sharp to affinis,
I cannot consider this form as one of them, the much narrower shape,
denser and coarser punctuation, and relatively longer prothorax
abundantly distinguisliing tliem without taking into account the
intense blackness of nigrinus.

HELOPIIORUS Fab.

H. palleilS n. sp. — Form slender. Color above pale brownish-tlavate,
almost without iridescence, except a slight amount on the elevated portions
of the pronotum ; head darker ; under surface dark piceous-brown, coxae
same, legs pale brownish-flavate, last joint of tarsi darker distally; antennae
and palpi pale, the former slightly darker toward tip. Head one-half wider
than long, constricted immediately in front of the eyes into a short broad
muzzle, very broadly rounded anteriorly, angles narrowly rounded, and sides
rather feebly convergent anteriorly; eyes large and prominent; epistomal
groove very strong, originating at the anterior extremity of the eyes, broadly
angulate posteriorly ; at the angle it is continued to the base by a strongly
marked triangular excavation ; clvpeus very large, one-half wider than long,
broadly swollen along the middle longitudinally ; surface uneven, a confused

82 NORTH AMERICAN

mixture of flat tulxTcles and small punctures, very feebly iridescent ; labrum
black, very short and broad, broadly angnlate, over six times as wide as long ;
antennae very short, scarcely as long as the head, first joint rather robust,
strongly narrowed toward base, nearly twice as long as wide, second conical,
rapidly narrowed toward tip, as wide at base as the tip of the first, bases
in contact throughout, slightly shorter than the first, third very slender,
cylindrical, slightly shorter than the second, fourth two-thirds as long as the
third, equal in thickness, fifth trapezoidal, wider than long, sides convergent
toward base, the outer very strongly so, the inner very feebly, the outer
angle being much further from the axis of the antenna than the inner,
remaining three joints broader than long, truncate at tip, except the eighth,
which is broadly rounded, compressed, pubescent, joints one to five glabrous.
Prothorax much wider than the head, three-fonrths wider than long; sides
feebly convergent from the apex to the base, feebly angnlate at the anterior
third, elsewhere nearly straight ; apex very slightly longer than the base,
broadly eniarginate throughout, bottom of the emargination very bioadly and
feebly arcuate, sides very widely divergent anteriorly ; base very broadly
angnlate, middle portion very slightly more strongly produced and rounded;
apical angles acute, posterior obtuse, but not at all rounded ; disk very
slightly convex, having seven narrow longitudinal furrows, and six flat
elevations, the latter finely sub-verrucate, each flat tubercle having a small
distinct puncture; median channel narrow and straight, second irregularly
twisted ; sides feebly reflexed, and very finely, feebly, and evenly undulated
along the edge. Elytra at base equal in width to the pronotum ; disk widest
at three-fifths its length from the base, where it is about one-fourth wider
than the pronotum, twice as long as wide, acutely rounded behind ; sides
arcuate; strongly convex; feebly striate, striae very strongly punctate;
punctures round, very deeply impressed, much closer than the width of the
intervals, which are very feebly convex, each having a regular row of very
fine punctures along the crest ; humeri prominent, prominence elongate.
Scutellum excessively minute, nearly circular, black, flat, about one-half
wider than one of the strial punctures. Legs long and slender ; anterior
tibiae rather strongly sigmoid, wider toward tip, fimbriate along the outer
side with two rows of very small spinules, the upper row longer and much
more widely spaced ; terminal spines small, equal, and arcuate ; corresi>ond-
ing tarsus rather slender, first joint shorter than the second, next three
equal, fifth as long as the first four together ; claws abruptly swollen at
base ; last joint of the posterior tarsi very much shorter than the preceding
together. Mesosternuin feebly, but very distinctly carinate ; middle coxae
narrowly separated. Abdominal segments nearly equal in length, strongly
opai^ue and grauulose, sparsely pubescent. Length 3.13—3.8 mm.

Arizona (Morrison), 3.

Till' clytrji an' inaculalt' witli a tew narrow longitudinal dashes of
dark casiancous, especially three spots lieliind the middle, one sutural
and two lateral.

At'ler vainly endeavoring by every means to see nine joints in tlie
aiitemiai', I iiave given it vip and am eom[)elled to state that I can

COLEOPTEKA. 83

see hut eiirlil joints in this species ; in Say's linpnfiis, however, there
are nine distinct joints, the fourth above described l)ein.ir divided.

The exposed surface of tlie cardo of tlie maxilhi is variously
sculptured in the different species of lielophorus, being in some
ornamented with oblique grooves, giving it the a[)pearance of a flat-
threaded screw, in others confusedly channeled, and in others punctate.

PHILHYDRUS Sol.

P. angustllllis n. sp. — Form elongate, elliptical, very convex, much
more than twice as long as wide ; upper surface pale brownish-flavate
throughout; under surface dark piceous ; tibiae and tarsi alone paler and
similar in color to the upper surface ; palpi and antennae slightly paler, club
of the latter piceous-black ; upper surface polished and glabrous. Head
one-half wider than long, rather convex ; anterioi- margin broadly rounded,
abruptly more strongly so at the sides ; epistomal suture broadly angulate,
sides straight, situated almost at the posterior third of the dorsal surface ;
from the angle along the occiput to the base there is a very feeble narrow
line ; surface rather finely, closely, evenly, and somewhat strongly punctate ;
antennae about as long as the head, basal joint as long as the next two
together, narrowed toward base, rather slender, second as wide at base as
the first, conical, narrowed toward tip, third as long as the fourth and fifth
together, the latter transverse, sixth more than twice as wide as long, trape-
zoidal, sides very strongly convergent toward the base, the outer side much
more strongly so, and the outer angle further from the antennal axis than
the inner, club nearly as long as the eutire remainder of tlie antenna, loose,
joints of equal width, first two trapezoidal, eleventh as long as the preceding
two together, strongly flattened, elongate, oval at tip ; maxillary palpi
about one-half longer than the antennae, very slender, third joint very
slightly shorter than the second, fourth about two-tliirds as long as the
third. Prothorax widest at the base, where it is slightly more than twice as
wide as long ; sides rather feebly arcuate ; apex broadly emarginate, about
two-thirds as long as the base, which is nearly transverse ; basal angles
broadly rounded, apical rather acutely so ; disk finely, closely, and strongly
punctate. Elytra at base as wide as the pronotum ; humeral angles rounded ;
sides parallel for about two-thirds the length, and feebly arcuate ; disk
rather acutely rounded behind, obtuse at the immediate apex, very convex,
about three-fifths longer than wide, very slightly more than twice as long as
the head and prothorax together, moderately finely, closely, very deeply,
and evenly punctate ; sutural striae distinct and feebly arcuate in the poste-
rior two-tliirds, completely obsolete in the anterior third. Scutellura longer
than wide, sides straight, acutely rounded at tip, finely and closely punc-
tate. Abdomen nearly fiat, sunken far within the elytra at the sides, finely
and distinctly ruguloso-granulate, and finely and somewhat densely pubes-
cent. Legs slender; terminal spurs of the posterior tibiae extremely un-
equal. Mesosternnm very feebly carinate, except abruptly near the posterior
extremity, where it rises almost as a thick acuminate erect tooth or tubercu-

84 NOKTII AMERICAN

lation. First joint of the posterior tarsi short, extremely obliquely truncate
at tip. Length 3.3-i.tJ min.

Sea-beaclies of New Jersey, 8.

A common littoral species, distinguislied by its pale color, very
narrowly oval form and punctuation. Tlie last three joints of the
antennae forming the club <ire abruptly nearly black, all the preced-
ing joints being very pale ; the sixth joint, although nearlv as wide
at apex as the succeeding ones, does not in my opinion form part of
the club.

C0L03r Herbst.

C decoi'is n. sp. — Form regularly elliptical, nearly two and one-half
times as long as wide ; very convex ; head piceous ; prothorax paler, piceous-
brown, hind angles and base gradually paler from diaphaneity : elytra pale
ochreous-yellow, under surface and legs same ; antennae dark reddish-brown,
very slightly pal(U- toward base and at the tip; pubescence pale yellowish,
dense and coarse on the elytra, more fine and sparse on the pronotum. Head
strongly deflexed, as wide as long, rather densely pubescent; eyes rather
large and prominent, sparingly setose ; interocular surface feebly and evenly
convex, polished, coarsely, very deeply and evenly punctate; punctures
round, so deep as to appear like perforations, slightly narrower than the
interspaces, finer and more close toward the labrnm, which is small, trans-
verse, and constricted slightly at base ; antennae short, slightly longer than
the width of head, club very prominent, four-jointed ; third joint equal in
length to the second, slightly thinner, longer than wide, fourth scarcely
longer than wide, as thick as the third, fifth trapezoidal, twice as wide as
long, shorter than the fourth, sixth and seventh very short, trapezoidal,
nearly three and four times as wide as long respectively, eighth longer than
the two preceding together, trapezoidal, one-third wider than long, joints five
to eight gradually and connectively increasing in width to the apex of the
eightli, where the club reaches its maximum thickness, and is thence cylin-
drical and very compact to the tip, ninth and tenth equal, shorter than the
eighth, about twice as wide as long, eleventh wider than long, very broadly
rounded at tiji. Prothorax widest at two-thirds its length from the apex,
where it is nearly one-half wider than long ; sides thent-e just visibly con-
vergent posteriorly, more strongly convergent anteriorly, nearly evenly
arcuate throughout ; apex broadly arcuate, three-fifths as long as the base,
which is broadly and very feebly arcuate, ahrujttly slightly more strongly
so toward the midtlle ; basal angles obtuse and not rounded; disk strongly
convex, coarsely, strongly, and sub-variolately punctate, punctures very
irregularly and loosely scattered, at many spots arranged in very straggling
broken series, interspaces finely and feebly punetulate, polished. Elytra at
base as wide as the pronotum; sides parallel for three-fifths the length from
the humeri, thence gradually convergent behind, obtusely rounded at the
immediate apex ; disk strongly convex, widest at alwut one-third its length
from tiie humeri, where it is fully three-fourths huiger than wide, with the

COLEOPTERA. 85

sides moderately arcuate; surface polished; svitural striae distinct, fecibly
arcuate ; very strongly, coarsely, and evenly punctato-asperate, punctures
arranged serially, every third series being composed of punctures which are
very much larger. Scutellum as long as wide, acutely rounded behind.
Abdomen finely pubescent, very minutely punctato-asperate, asperities ar-
ranged transversely m partial series ; segments five, first as long as the next
two together, second to fourth equal in length, fifth very short. Legs long
and slender ; anterior tarsi very slender and cylindrical, tibia terminated in-
teriorly by a stout finely acuminate arcuate spine, second spine very minute;
posterior femora not toothed, tibiae straight; anterior femora sub-cylindrical,
not very robust. Length 1.9 mm.

N(^ar Chester, Pennsylvania, 1.

The unique specimen of" this very fine species I found under rubbish
of various sorts cast up by the waves on the shores of the Delaware
River in early spring. If it is a male, as there is reason to suppose,
it must come immediately ai'tev paradoxum, otherwhe it will perhaps
find a most appropriate place just after thoracicum. The posterior
femur has the lower edge abruptly more strongly arcuate near the tip,
but cannot be said to be properly toothed ; the middle portion of the
disk of each elytron in the type is indefinitely clouded with castaneous
behind the middle.

The species may be distinguished at once by its oval form, pale
yellow elytra, and very coarse asperate elytral punctuation.

EUMICRUS Lap.

Microstemma Mots.

E. vestalis n. sp. — Form moderately robust. Color throughout dark
rufous, legs and antennae not paler; pubescence of head and pronotum
rather sparse and fine, that of the elytra coarser, longer and more dense,
erect and bristling; integuments highly polished. Head slightly wider
than long, sub-rectangular; sides just visibly convergent posteriorly and
very feebly arcuate ; basal angles broadly rounded ; eyes moderate, rather
finely granulated, feebly convex, situated at the anterior angles ; interocular
surface feebly and evenly convex, finely rather densely and very feebly
puuctulate toward the eyes, narrowly impunctate along the middle ; supra-
antennal margin of the front slightly produced in the middle ; antennae
rather approximate at base ; clypeus under their points of attachment short,
very declivous, and very broadly rounded ; labrum very short, transverse,
rugulose, coarsely setose ; third joint of the maxillary palpi slender, clavate,
nearly five times as long as wide, fourth obscure, very short ; antennae as
long as the head and prothorax together, strongly geniculate, first joint as
long as the next two together, second slightly shorter than the third and as
long as the fourth, fifth longer than the third, sixth shorter, seventh and
eighth much shorter, slightly wider than long, ninth and tenth each as long
as the seventh and eighth together, last three joints increasing in width,

8G NORTH AMERICAN

eleventh longer, conoidal. Prothorax widest at the anterior third ; sides
rather strongly arcuate anteriorly, much less strongly so posteriorly, dis-
tinctly wider than the head ; disk one-fourth longer than wide, moderately
convex, very minutely remotely and scarcely perceptihly punctulate through-
out, bifoveate before the base on each side. Elytra at the base very slightly
wider than the pronotum, widest in the middle where together they^re four-
fifths wider than the pronotum ; sides rather strongly and evenly arcuate
throughout, gradually convergent to the apex which is rather acutely
rounded ; disk convex, very minutely sparsely sub-asperately and feebly
punctate, mutually feebly and, narrowly elevated along the suture more
especially toward the base ; humeri not prominent. Legs slender; femora
distinctly clavate toward tip ; posterior trochanters very long, corresponding
coxae widely separated ; first ventral segment as long as the next three
together, two to five very short, eqiial in length, sixth longer, transversely
lunate ; pygidium exposed, as wide as long, shining, impunctate ; first joint
of the posterior tarsi nearly one-half lo'nger than the second and as long as
the fifth, third and fourth shortest, equal. Length 2.2 mm.

Arizona (Morrison), 2.

This species differs from LeConte's Microstemmfi f/ross(t in tiie
shape and punctuation of the proiiotum, in the strncture of the an-
tennae, and in size.

E. puiictatlis n. sp. — Form rather slender. Color of body and antennae
very dark rufous, legs slightly paler and more flavate ; pubescence evenly
distributed throughout the upper surface, rather fine, moderately long and
sparse, pale fulvous in color, sub-recumbent ; integuments very higlily
polished. Head rather small, from the antennae distinctly shorter than wide,
rectangular ; sides parallel and very feebly arcuate ; base truncate, posterior-
angles right and rather feebly rounded ; eyes small, at the anterior angles, verV
slightly prominent anteriorly ; interocular surface very broadly convex, very
minutely and sparsely punctulate throughout ; apical margin feebly and
angularly produced and declivous in the middle between the antennae; the
latter very slender, strongly geniculate, as long as the head and prothorax
together, club elongated and very slender, first joint slightly shorter than
the next two together, ninth about as thick as the first, much longer than
wide, as long as and but slightly thinner than the tenth, eleventh thickest,
elongate, conoidal, obtusely acuminate at the immediate apex, proportional
lengths of the joints nearly as in reslalis; last joint of the maxillary palpi'
very short, broader than long, obtusely angulate. Prothorax widest at
slightly less than one-third its length from the apex where the sides are
somewhat angularly rounded and thence very strongly convergent and
slightly arcuate to the apical angles, and very slightly convergent and
nearly straight to the base ; the latter longer than the apex and more than
two-thirds as long as the pronotal width ; disk convex, even, slightly less
than one-fourth longer than wide, finely rather feebly densely and evenly
punctate, not foveate along the base but narrowly and feebly eroded. Elytra
at base very slightly wider than the pronotum, widest in the middle where

COLEOPTERA. 87

they are nearly twice as wide as tlie latter ; sides evenly and strongly arcuate
throughout ; together rath.er ohtusely rounded at the apex ; disk convex,
sliglitly less than twice as long as wide, coarsely rather strongly and some-
what densely and evenly punctate ; punctures im])ressed, interspaces slightly
convex. Legs long and very slender ; femora slender, rather abruptly
clavate near the tips ; tarsi very slender, first joint of the posterior nearly
twice as long as the second and longer than the fifth, joints two to four uni-
formly and very gradually decreasing in length. Length 1.4 mm.

Ann Arbor, Michigan (Schwarz), 1.

Distinguishable from Afotschulskii by its smaller size, absence of
pronotal foveae, and very coarse punctuation of the elytra.

Employing the characters given by Dr. LeConte (N. Sp. Col. p. 20)
for the two species described by him, we have the following table : —

Prothorax short, nearly as wide as long.

Pronotura punctured behind gl'OSSUS.

Pronotum not punctured behind ; much smallerspecies...]fIotsclnilsk.ii.
Prothorax much longer than wide.

Elytra very feebly and sparsely punctulate Testalis.

Elytra coarsely densely and strongly punctate, pillictatlis.

BRYAXIS Leach.

B. facilis n. sp. — Form rather slender. Color piceous, antennae very
slightly paler, elytra rufous, darker in a narrow transverse apical band, legs
pale reddish^llavate ; pubescence excessively short and sparse, recumbent.
Head much longer than wide ; interocular surface impunctate, having three
deeply impressed circular spongy-pubescent foveae, which are exactly equal
and at the vertices of an equilateral triangle ; intermediate surfaces rather
strongly convex ; eyes rather large and prominent, very coarsely granulated ;
antennae distinctly longer than the head and prothorax together, slender,
first three joints decreasing uniformly in length and thickness, very slowly
in the former and rather rapidly in the latter sense, third joint two-thirds
longer than wide, joints three to seven equal, slender, and cylindrical, eighth
scarcely as wide, quadrate, ninth slightly elongate, cylindrical, slightly
thicker, tenth scarcely longer than wide, slightly trapezoidal, a little thicker
than the ninth, eleventh slender, thicker than the tenth, as long as the three
preceding joints together, obliquely and finely acuminate. Prothorax slightly
wider than the head, widest very slightly before the middle, where it is
about one-four,th wider than long ; sides strongly arcuate, almost straight
toward the apex and base, the former three-fifths as long as the greatest
width, and very slightly shorter than the latter, both equally and very
feebly arcuate ; disk very strongly convex, impunctate ; lateral foveae large,
spongy-pubescent, at one-third the length from the base; median very small,
in the form of a nude puncture, very near the base, not connected with the
lateral foveae. Elytra at base slightly wider than the pronotum ; sides
strongly divergent posteriorly and feebly arcuate, transversely truncate be-
hind ; disk rather convex, slightly shorter than wide, rather finely, closely.

.s8 NOirrn a:\ikrican

and excessively feebly punctiilate ; siitural striae fine, straight, approxi-
tnate i single discal stria line and distinct, exteriorly arcuate, nearer the
suture than the lateral edge, abruptly terminating very near the apices,
where it is feebly sigmoid. Abdominal segments very convex, polished ;
border moderate, flat, rapidly becoming narrower posteriorly; dorsal carinae
of first segment very fine, rather long, approximate, strongly divergent and
arcuate ; surface finely punctulate. Length 1.3 mm.

Willets Point, Long Island, 1.

Tlif above description is taken from a male; the terminal ventral
segment is broadly, ovally, and feebly impressed ; the apex of the last
dorsal is very feebly sinuate at the immediate apex. The species
should probably stand just after atlantica Brend. in the catalogue.

ARTIliTIIUS Lee.

,4. gracilior n. sp. — Form rather slender. Head and elytra dark
rufous, pronotum slightly darker, abdomen piceous, legs paler, ferruginous
antennae very dark rufous ; pubescence long, rather coarse, semi-erect,
rather sparse, more dense on the abdomen, where there is an admixture of
longer hairs ; surface very highly polished throughout. Head ratlier large,
as wide as long ; eyes large, very coarsely granulated ; interocular surface
raised above them, nearly flat, impunctate, having two deep, nude, puncti-
form foveae on a line through the posterior third of the eyes, and mutually
three times as distant as either from the eye ; antennal tuberculations rather
large, not prominent, surface between them very feebly depressed, behind
each the surface is very feebly and obliquely impressed ; epistoma rapidly
declivous before the antennae and feebly convex, broadly rounded anteriorly,
and having at each anterior angle a small dentiform tubercle ; labrum small,
transversely oval ; antennae about as long as the head and prothorax together,
rather slt;nder, basal joint moderate, emarginate at tip, bicarinate on its
upper surface, second slightly elongate, cylindrical, third and fourth much
shorter, e(jual, sub-globular, fifth abruptly and irregularly dilated, slightly
shorter than the sixth, sixth slender, equal in length to the seventh, the
latter slightly more robust, eighth as long as wide, dentieularly produced
outwardly at apex, ninth slightly longer than wide, no thicker than the
seventh, tenth as long as wide, slightly thicker than the ninth, eleventh
slender, finely acuminate, nearly one-half thicker than the tenth, and
slightly shorter than the three preceding joints together; all the outer
joints are transversely truncate at base, the latter being surrounded by a
narrow raised black bead. Prothorax scarcely as wide as the head, as wide
as long, widest at one-third the length from the apex ; sides abruptly and
very strongly convergent to the apex, which is scarcely one-half as long as
the greatest width, and gradually convergent and moderately arcuate to the
basal angles, just before which they are feebly sinuate ; base one-third longer
than the apex; disk very strongly convex, impunctate and devoid of all
modification, except a narrow transverse canaliculation at one-fifth the length
from the base, which is very distinct, and terminating at each side in a small,

COLEOPTKUA. 89

ronnrled, nude, pnnctiform fovea ; at each side there are two erect setae much
longer than the puhescence. Elytra at base very sliglitly wider than the
base of the pronotum ; sides very strongly divergent posteriorly and strongly
arcuate ; together transversely truncate behind ; disk fully one-fifth wider
than long, rather strongly convex, very remotely and excessively feebly
punctulate ; sutural striae very approximate, well marked and straight ;
between each stria and the suture there is a row of minute and rather well-
marked punctures ; each elytron has three small, rather feebly impressed
nude foveae at base ; humeri prominent. Abdomen at base as wide as the
elytra, segments rapidly and arcuately decreasing in width ; surface mode-
rately convex, not punctate ; border obsolete, except on the first segment
where it is feeble ; first segment very long, nearly as long as the remainder
together when viewed from above, having in the basal two-fifths two very
distant strong carinae, which are very feebly convergent ; first ventral seg-
ment having at each side just below the prolongation of the elytral edge a
very long, strong, basal carina ; penultimate ventral segment very large,
having in the middle a very large circular and very deep excavation, one-
fourth as long as the entire abdomen. Anterior tibiae strongly toothed ;
femora all strongly fusiform. Length 1.4 mm.

Tampa, Florida (Scliwarz), 1 %.

I have retained the genus Arthmius Lee. distinct from Batrisus. at
least until the genus Batrisus can be reinvestigated, because of the
very different form of the body, the very elongate basal segment of
the abdomen, the peculiarities of the pronotum and antennae, and the
very singular deep excavation of the penultimate ventral segment.
The present species differs from (//obicollis Lee. in its much more
slender form, darker color, structure of tlie antennae, and n)ore par-
ticularly in the form of the abdominal excavation, wliich in (jlohicollls
is not circular biit broadly lunate. The middle tibiae in both these
species, at least in the males, have a single acute terminal spur; the
tooth of the anterior tibiae is deeply excavated anteriorly, the exca-
vation extending obliquely along the tibia.

BATRISUS Aube.

B. denticollis n. sp. Mule. — Form slender. Color black, elytra dark
rufo-piceous, antennae, legs, and palpi dark rufo-testaceous ; integuments
highly polished ; pubescence long, sparse and coarse, erect and herissate,
slightly more dense on the abdomen. Head large, slightly wider than long ;
eyes small, prominent ; interocnlar surface elevated abruptly very far above
the eyes, generally nearly flat above, having two very large circular, feebly
impressed spongy-pubescent foveae on a line with the eyes, and mutually
nearly twice as distant as either from the eye, intermediate surface rather
convex, with feeble traces of a narrow medial longitudinal carina; the two
foveae are connected by an anteriorly arcuate rather feebly impressed chan-
nel ; supra-antennal tuberculations very large, flat, coarsely and distinctly

90 NOKTII A>tKniCAN

punctate, intermediate surface finely punctate, feebly depressed, hioadly an'l
rather strongly eniarginate anteriorly, bottom of the emargination having
two approximate strong triangular teeth ; remainder of the head iuipunctate ;
clypeal surface between the bases of the antennae very deeply excavated
under the overlianging porrected inter-antennal portions of the front, broadly
arcuate anteriorly, and bearing two elongate, oblique, approximate tubercu-
lations, which are directly under the two teeth of the frontal emargination :
labrum very transverse, transversely truncate anteriorly, strongly con-
stricted at base ; antennae stout, about as long as the head and pronotum
togetlier, basal joint moderate in size, very irregular in shape, being eniargi-
nate at tip and tuberculate beneath, joints two to four decreasing uniformly
in length, the latter quadrate, joints four to seven nearly equal, eighth very
slightly shorter, transverse, ninth very slightly larger, slightly transverse,
strongly cuneate, being wider externally, tenth abruptly much larger, sub-
globular, eleventh but very slightly wider than the tenth, longer than wide,
as long as the two preceding together, abruptly, obliquely, and finely acumi-
nate at tip. Prothorax very slightly longer than wide, widest at two-fifths
its length from tli(^ apex, where it is scarcidy as wide as the head ; sides at
this point very strongly arcuate, thence convergent and sinuate to the base ;
apex scarcely one-half as long as the greatest width, and nearly three-fourths
as long as the base; disk impunctate, strongly convex, having at one.fourth
the length from the base a small, very deep, nude, median puncture, from
which, extending anteriorly nearly to tlie apex, there is a narrow, very deep,
cleft-like, and conspicuous canaliculation ; at two-fifths the length from the
base there is on each side a large, circular, feebly impressed, spongy-pubes-
cent fovea, extended anteriorly throughout as a narrow, deep canaliculation ;
midway between the lateral and median foveae there is on each side a very
strong, erect, acute tootli continued anteriorly as a fine, feeble carina : be-
tween the median puncture and the basal margin there is a short, distinct,
connecting <;arina, and near the basal margin on each side two deeply im-
pressed punctures. Elytra at base equal in width to the base of the pro-
notum ; sides strongly divergent and arcuate throughout ; together very
broa<lly arcuate behind ; disk about as wide as long, convex, very feebly and
distantly punctulate ; sutural striae approximate, distinct; between each
and the suture a row of fine punctures ; each elytron has at base three punc-
tures, the middle are continued posteriorly through the basal third as a
broadly impressed channel ; humeri having a small oblique acute discal
tooth. Abdomen at base scarcely as wide as the elytra, equally long, rather
convex, impunctate ; first dorsal with two, very short, parallel stout basal
cusps. Legs slender, femora fusiform ; posterior tibiae long, arcuate, with a
slender terminal appendage ; tarsi very slender ; nietasternum with a strong
median canaliculation. Length 1.8 mm.

AVashington, District of Columbia (Scliwarz).

Ditlers from spretus Lit. by its larger size and tlie very deep
medial canaliculation of the prouotuui.

B. vil'$>;illiac n. sp. — Form and t'olors nearly as in dtnticol/is; pubes-
cence more ciciise and conspicuous ; antennae slightly paler toward tip ; legs
more slender, especially the femora.

COLEOPTERA. 91

Male. — Head large, sub-quadrate ; eyes small ; interocular surface elevated
abruptly and very far above tliem, nearly flat above, baving two round,
nude, deeply impressed punctiform foveae on a line tbrough tbe eyes, and
mutually one-half more distant than either from the eye, joined by an ante-
riorly arcuate feebly impressed channel ; the portion of the head behind the
channel and foveae being impunctate, the remaining portions being finely,
densely, and strongly punctate ; surface between the foveae moderately con-
vex, having a short medial carina ; antennal tuberculations very large and
flat, surface between them not depressed, but strongly declivous anteriorly,
and produced as a short, broad muzzle, tuberculate in the middle anteriorly,
and dentate at the sides below, the teeth being densely setose ; beyond tiie
medial tubercle the surface becomes perpendicular, and at its foot the muzzle
is abruptly parrowed and produced as a flat triangular horn, which is deeply
notched at the vertex ; under the declivous, overhanging muzzle with its
bifid horn the head is deeply excavated posteriorly between the bases of the
antennae, the transversely truncate anterior margin of the clypeus being
directly under the tip of the horn ; the punctate portions of the front are
more densely pubescent, the hairs being short and coarse ; beneath, behind
the eyes, the pubescence is very dense and erect ; basal joint of the antennae
as long as the next two together, robust, second slightly longer and wider
than the third, joints three to eight almost exactly equal in width, nearly-
quadrate, ninth slightly wider, distinctly transverse and very feebly cuneate,
tenth abruptly much larger, almost exactly globular, eleventh as wide as the
tenth, elongate, nearly as long as the three preceding together, obliquely
acuminate at tip. Prothorax as wide as long. Pronotum and elytra nearly
as in denticollis, the basal margin of the latter being much more strongly
elevated, and the humeri not dentate. Basal carinae of first dorsal segment
more approximate and feeble. Metasternum canaliculate medially; posterior
tibiae having a similar terminal spur. Length (head extended) 2.0 mm.

Stone Creek, Lee County, Virginia (Schwarz).

The larger claw of the anterior tarsi is distinctly cleft near the tip
in the male. This is a very singular species, greatly I'esembling den-
ticolUs in nearly all its features exce[)t the head, which is entirely
different ; the punctuation of the inter-antennal portions of the head
is much more dense and fine in virginice.

B. ateri'inilis n. sp. — Form slender. Color intense black throughout,
antennae and legs very dark rufo-testaceous ; integuments extremely highly
polished ; pubescence very sparse, coarse, and inconspicuous, except beneath
the head behind the eyes, where it is more abundant. Head large, sub-
quadrate, as wide as long ; eyes small, very convex ; interocular surface
elevated abruptly and very strongly above them, nearly flat above, having
two small, round, deeply impressed, spongy-pubescent fovae on a line with
the posterior limits of the eyes, and mutually one-half more distant than
either from the eye ; from each there is a feebly impressed, nearly straight
channel extending anteriorly, the two strongly convergent, and becoming
mutually obsolete between the antennae, making, with an imaginary line

92 NORTH AMERICAN

between the foveae, an equilateral triangle ; supra-antennal tubercnlations
rather large, somewhat elevated, very coarsely punctate; intermediate sur-
face feebly depressed ; anterior to a line across the tubercnlations the surface
becomes abruptly very strongly declivous, gradually becoming less so, and
more porrected at the edge of the very short, broadly rounded clypeus, the
surface of which is confusedly rugulose; occiput irapunctate; labrum strongly
transverse, paler in color, broadly and strongly eraarginate anteriorly, angles
very prominent, constricted at base ; palpi pale ; antennae as long as the
head and prothorax together, rather robust, basal joint not as long as the
next two together, eraarginate at tip, second distinctly longer than wide,
joints two to eight equal in width, nearly quadrate, except the second, ninth
equal in length, slightly transverse, oval, tenth slightly wider and longer
than the ninth, slightly transverse, oval, eleventh distinctly wider than the
tenth, elongate, as long as the three preceding joints together, obliquely
acuminate at tip ; under surface densely punctate, scabrous. Prothorax
very slightly longer than wide, nearly as in the preceding species, except
that the carina on each side from the posterior tooth is obsolete immediately
before tiie latter, but reappears at the middle of the disk as a second minute
tooth. Elytra nearly as in the preceding species, except that the punctua-
tion is very remote, even, minute, and distinct ; punctures of the rows be-
tween the sutural striae more distant ; humeri strongly but minutely toothed.
Abdomen convex, remotely and very minutely punctulate ; cusps at the base
of the first dorsal segment very robust and strongly elevated. Legs slender ;
claws minute. Length 2.0 mm.

C:iniI»ri(Ige, Massachusetts (Schwarz).

Tlie above-described specimen is probably a female. Just before
tlie larjre posterior spines of the pronotum there is a minute spongy-
l)ubescent fovea. Tlie emargination of the labrum and structure of
the antennae and liead abundantly distinguish this species from the
two preceding, and the first ciiaracter may prove useful in a future
classilication of our species. There are no carinae on the surface
of tiic (irst ventral segment as in Arthmius, but instead a distinct
rounded tubercle situated at the basal edge on each side. As far as
I can observe the present species is provided with a terminal posterior
tibial spur.

I notice in looking over 31. Katliay's interesting descriptions of
Pselapliidae (Kevue d'Eutomologie, 1882), tliat this author gives the
name sinipfer to one of his species of Hatrisus ; as this name had
already been api)lied by Dr. LeConte to a North American species
of this genus (Proc. Am. Pliil. Sec. 1878, j). 598), it may perhaps be
proper to propose the name Raffrayi for the former.

Pending a general revision of the species of this genus, which is
surely needed, and which it is the intention of the autlior to attempt,
l>rovided sufficient material can be obtained, it may be slated that

COLEOrXERA. 93

there appear to be many good characters which may be employed for
purposes of classification, amongst others the enhirgement or not of the
10th joint of the antennae, the presence or not of spongy-pubescent
foveae on the occiput, the terminal spur of tlie posterior tibiae —
already used by Dr. LeConte — and the great variety in the modifi-
cations of the front in the males. In dcnticollis and virginicR the
general forms of body and antennae are so similar that they could
scarcely be separated, but the heads in the males are entirely different
in the character of the frontal and clypeal modifications.

EUPLECTINI.

The very minute insects included in this group form a very large
and important section of the singular family Pselaphidae, and bear a
very striking similitude to several genera of Staphylinidae, their
general resemblance to the genus Edaphus being most remarkable
and unaccountable ; the latter may, however, be distinguished by
tiieir flexible and retractile abdominal segments, which are seven in
number, while in the present group they are six in number and com-
paratively rigid; the minute structural characters are, of course, of an
entirely different nature.

They appear to be rather rare as a rule, and are only occasionally
met with, which is due, probably, to their comparatively secluded and
little known habits, and their very small size; many new species and
genera are undoubtedly yet to be discovered within the territory of
the United States. The sexual characters are well marked, and
occasionally present very curious structures in the males ; these char-
acters are not made use of to any great extent in the following scheme
of classification, but are generally mentioned incidentally wlien suffi-
ciently interesting.

The material employed is tiiat contained in the cabinet of Dr.
LeConte, together with a still larger set kindly communicated by
Messrs. E. A. Schwarz and H. G. Hubbard,- of Washington, and also
a few specimens in my own collection. In the second mentioned
was included one entirely new genus not contained in the collec-
tion of Dr. LeConte. The genera here considered are those having
but a single tarsal claw, and may be distinguished by the following
table, this being intended as a continuation of the one given in the
Classification of the Coleoptera of North America, Sm. Misc. Coll.
No. 507.

Cont. Part II. 3 December, 1884.

94 NORTH AMERICAN

Tarsus iiuth a single claw ; front of head not produced: antennae straight.

First ventral segment much elongated ; prosternnm neither foveate nor cari-

nate ; last joint of antennae abruptly very robust Trimium.

First three segments of the abdomen sub-equal ; prosternum bifoveate ; last
three joints of the antennae more or less gradually increasing in width.
Eyes present.

Prosternum not carinate Euplectus.

Prosternum and mesosternum having a distinct medial loii^'itiiiliiial
carina ; tenth joint of antenna unusually long and conspiiuous.

Thesium.
Prosternum carinate ; mesosternum not carinate.

Eyes well developed and large in both sexes ; antennae very slender,
club very slender and elongate ; pronotum having two lateral
canaliculations, but neither a transverse basal groove nor lateral

loveae ; prosternum very short Faliscus.

Eyes small and very coarsely granulated in the male, rudimentary in
the female ; pronotum wi)h lateial foveae and transverse basal
groove, without lateral canaliculations ; club of antennae rnlmst ;

prosternum very long Nicotheus.

Eyes wanting ; prosternum liaving a distinct medial carina. ..Eutyphlus.

I liave, much to my regret, been unable to obtain Dr. LeConte's
types of Trimium, and since Eutyphlus contains but a single well-
known species, it is proposed at the present time to treat of the four
remaining genera alone. Reitter, in his recent tabular statement of
the Pselaphidae, distinguishes bis genus Scotoplectus, into which he
absorbs Eutyphlus Lee, by the abnormal shortness of the elytra ; as
in Eutyphlus the elytra are normally much longer than the prothorax,
I cannot witiiout further evidence make the change of name.

EUPI.ECTUS Leach.
The species of this genus are more numerous and individually much
more abundant than tliose of the others ; tliey are vei-y readily divided
into two groups, depending upon the canaliculation or not of the pro-
notal disk. As a coincidence, and probably of no generic import, it
is to be remarked tiuit the species witliout tlie pronotal canaliculation
liavf the entire lower surface of the liead covered densely with long
erect sensitive setae, wliile, with but one or two exceptions, these
setae are entirely wanting in those with canaliculated pronotum. It
is inferred tliat the setae are sensitive, since tlie tip of each is swollen
into a bulbous knob, but why some of them should be provided with
this additional sensory apparatus, while others, apparently similar in
all other respects, should be entirely deprived of it, is one of the
mysteries of nature which must probably forever remain unsolved.

COLEOPTERA. 95

The following table exhibits the arrangement adopted for the
species under examination, but which before many years will repre-
sent, without doubt, scarcely more than two-thirds of the forms which
will then be known, and it is even incomplete at the present day, as
I have seen at least one undescribed species not here represented.

In cavicollis there is a very feeble broadly impressed area in the
middle of the pronotal disk, which appears to be a rudimentary canali-
culation ; it is, however, so feeble that I have placed the species in
the second group; its very distinct form of protliorax will distinguish
it without trouble.

Pronotum having a distinct medial longitudinal canaliculation or elongated
canaliculate puncture.
Under surface of head having a large pad of erect sensitive setae ; canali-
culation of pronotum very narrow, extending with equal width from the

base to the apex 1. caiialicillatlis.

Under surface of the head without the large area of sensitive setae ; canali-
culation short.
Form generally somewhat robust ; head strongly convex and deeply im-
pressed hehind the frontal ridge ; interocular surface not distinctly
punctate.
Minute species, not exceeding 0.8 mm. in length.

Forna robust ; color reddish-testaceous..... 2. piiniillis.

Form moi-e slender; color dark blackish-castaneous ....3. debilis.
Larger species, not less than 1.3 mm. in length.

Prothorax longer than wide ; genae of head very long.

4. loiigicollis.
Prothorax about as long as wide.

Eyes small ; genae rather long ; form of body slender ; abdomen
narrow, rather rapidly narrowed toward the base.

5. difiicilis.
Eyes larger ; genae much shorter ; form of body more robust ;
abdomen broader, just visibly narrowed toward the base.

6. congener.
Prothorax distinctly wider than long.

Pubescence very coarse, erect, and conspicuous ; antennae long
and very robust, strongly setose ; males having two elongate
spines protruding from beneath the third ventral segment ;

size large ..- 7. sexiialis.

Pubescence scarcely noticeable, very tine, short, and recumbent.
Head wider than long.

Sides of prothorax broadly rounded throughout ; male having
two spines protruding from beneath the third ventral seg-
ment 8. spinifer.

Sides of prothorax much more acutely rounded anteriorly,

straight posteriorly 0. linearis.

Head as long as wide 10. interruptiis.

96 NORTH AMERICAN

Form linear, depressed ; sides parallel ; head very large and flat ; eyes
small ; genae long.

Head strongly punctate toward the eyes 11. COlllllieilS.

Head not distinctly punctate; body extremely slender and linear;

size very minute 12. pei'teiiuis.

Pronotnm not having a median canaliculation or punctiform impression upon
the disk ; under surface of head having a dense pad of erect setae.
Prothorax strongly transverse ; median impression near the base very
large and almost circular, nearly one-half as long as the entire pro-

notum 13. cavicoUis.

Prothorax very moderately or feebly transverse ; posterior median impres-
sion moderate or small, strongly dilated laterally.
Large species ; pubescence very short and dense, giving an opaque

appearance to the integuments 14. crillitllS.

Integuments polished ; pubescence scarcely noticeable.
Larger species, not less than 1.4 mm. in length.

Head very small 15. capitllllllll.

Head larger, as long and nearly as wide as the prothorax.

16. decoi'us.
Minute species, not exceeding 1.2 ram. in length.

Form very convex and rather robust ; prothorax rather strongly
narrowed behind, sides very evenly arcuate anteriorly ; color pale

reddish-testaceous 17. ai'CliatllS.

Form somewhat depressed ; color dark piceous-brown or piceous-
black.
Prothorax distinctly wider than long ; sides feebly convergent

posteriorly; color plceous-black throughout 18. leviccps.

Prothorax nearly quadrate, sides jiarallel ; color of elytra blackish-
castaneous, that of the remainder of the body piceous-brown.

19. ruficeps.

1. E. caiialicillatUS Lee. — Bost. Joum. VI. p. 107. — Form rather
robust. Pubescence somewhat long, fine, and dense, pale fulvo-cinereous
and rather conspicuous ; color of body pale ferruginous throughout, shining.
Head rather small, slightly broader than long ; eyes moderate in size and
prominence ; genae scarcely prominent, shorter than the eye, strongly con-
vergent behind ; base broailly sinuate ; interocular surface polished, some-
what asperate, extremely convex, having a conspicuous longitudinal medial
canaliculation at the occipital declivity, and at more than one-third the
length from the base, two very minute spongy-pubescent foveae, very close
to the eyes, intermediate surface nearly three times as wide as the distance
of either fovea from the eye, very strongly convex and prominent, abruptly,
strongly, and conspicuously declivous at one-tliird the length from the frontal
transverse ridge ; the latter strongly arcuate anteriorly, swollen longitudi-
nally in the middle, where it bears a small acute dorsal tubercle ; innnedi-
ately behind this inter-antennal ridge and along the bottom of the declivity
of the inter-foveal convexity there is short, transverse, posteriorly arcuate
(•hannel dilated at the ends ; supra-antennal tuberculations moderate, angu-

COLKOPTERA. 97

late externally, each crossed by a minute chann(^l ; antennae robust, as long
as the elytra, club relatively slender, second joint but sliglitly wider than
the following, joints nine and ten sub-equal in length, distinctly longer than
the eighth, the former three-fourths wider than long,, and two-thirds as wide
as the latter, eleventh but slightly wider than the tenth, much elongated,
acuminate ; under surface of the head with a dense pad of erect sensitive
setae. Prothorax large and robust, widest just behind the middle, where
it is as wide as long, and slightly wider than the head ; sides evenly and
rather feebly arcuate anteriorly, nearly straight, minutely and irregularly
denticulate posteriorly ; apex two-lilths as long as the pronotal width, and
two-thirds as long as the base ; disk very convex, polished, finely, and
sparsely asperate, having a narrow, strongly marked medial canaliculation,
extending with equal width from very near the apex to the basal margin,
and which is crossed at one-fourth the length from the base by a transverse
straight channel of equal width and depth, which terminates laterally in
rather small deeply impressed spongy-pubescent foveae. Elytra at base
scarcely wider than the pronotum ; sides rather strongly divergent poste-
riorly and strongly arcuate ; disk very slightly shorter than wide, but
slightly longer than the pronotum, very convex, shining, distantly and
evenly asperate ; sutural striae strong, close> arcuate ; lateral striae nearly
obsolete. Abdomen as wide as and shorter than the elytra; sides parallel
and slightly arcuate ; margin narrow and flat ; surface very strongly convex,
polished ; first dorsal with two rather long, fine, divergent carinae. Legs
rather long and slender ; prosternum transverse, very flat ; anterior coxae
conical and very long Length 1.1—1.2 mm.

Detroit, Michigan, 1; Odenton, Maryland, 1; Georgia, 2; Cres-
cent City, Florida, 1.

This species, the description of which is taken from Dr. LeConte's
type, a male, is so aberrant, especially in the structure of the head,
anterior coxae, and in its short, broad, very convex abdomen, that it
is questionable whether it is advisable to retain it in the present
genus. The large lunate penultimate segment of the abdomen in the
male is broadly depressed in the middle; the apical segment is partly
enclosed by the preceding, as is usual, and is slightly wider than long.
The species is widely diffused, but is apparently very rare.

2. E. pumilus Lee. — Bost. Journ. VI. p. 1 06. — Form moderately robust.
Pubescence somewhat sparse, very short, recumbent, fine, and not conspicu-
ous. Color of entire body ferruginous, legs and antennae paler. Head
rather small; eyes rather large and prominent; genae not prominent, as
long as the eye ; interocular surface confusedly and coarsely granulose,
shining, raised abruptly far above the eyes, nearly flat above, narrowed
anteriorly, strongly sinuate at the middle of the base ; having two very
minute, round, spongy-pubescent fovene at two-fifths the length from the
base, mutually much more distant than either from the eye, connected by an
anteriorly arcuate parabolic channel of slight deptli, as long as wide ; inter-

98 NORTH AMERICAN

me.liate surface moderately convex ; sai)ra-aiiteiiiial Inberculations small,
somewhat prominent, connected by the moderately arcuate frontal ridge;
antennae slender, but slightly longer than the head, club large, ninth and
tenth joints equal in length, one-half wider than long, the latter one-third
wider than the ninth, eleventh somewhat abruptly much wider, evenly
conoidal, acuminate, elongated, as long as the four preceding joints together.
Prothorax widest slightly in advance of the middle, very slightly wider than
the head, and just visibly wider tlian long; sides arcuate anteriorly, nearly
straight posteriorly ; apex about one-half as long as the pronotal width, and
three-fourths as long as the base, both slightly arcuate; disk strongly con-
vex, coarsely granuldse, shining ; having a large, deep, elongated, fusiform,
medial canalioulation ; also having at one-third the length from the base a
narrow, deep, posteriorly cusped, transverse groove, very slightly dilated at
the middle into a fovea, and terminating at the sides in rather large, shallow,
spongy-pubescent foveae. Elytra at base distinctly wider than the pro-
thorax ; sides distinctly divergent posteriorly and rather strongly arcuate ;
disk quadrate, rather convex, shorter than the head and prothorax together,
smooth, almost impunctate, shining ; sutural striae strong, close, and arcuate,
lateral short and feeble. Abdonien slightly narrower than the elytra ; sides
nearly parallel and straight; border rather narrow and slightly inclined;
surface rather convex, shining, impunctate; first three segments equal; first
two dorsals witii two distant, excessively short, and feeble divergent carinae.
Legs rather short and slender. Under surface of the iiead apparently with
a few widely scattered sensitive setae anteriorly Length 0.7 mm.

South Carolina, 1.

Described from Dr. LeConte's unique type.

This species greatly resembles dehilis Lee. in everything but color,
and differs from it in its smaller size, more robust form, less smooth
and polished integuments, and in the shape of the pronotum, which
is slightly less narrowed anteriorly tlian in that S[)ecics. The carinae
of the dorsal segments are so small and obscure that I am not abso-
lutely sure of their existence, because of the somewhat imperfect
condition of the type.

3. E. (lebilis Lee— Proc. Am. Phil. Soc. XVIL 1S7S, p. 386, No. '20.—
Form slender. Pubescence sparse, short, cinereous, rather inconspicuous,
with much longer, very widely scattered setae upon the abdomen. Color
piceous-brown, antennae and legs distinctly paler, elytra slightly darker;
integuments highly polished. Head small, slightly wider than long; eyes
small, convex, and very prominent ; genae very small, rather acutely
rounded, shorter than the eye ; base broadly and feebly sinuate throughout ;
interocular surface abruptly and very strongly elevated, moderately convex
above, not punctate ; having two small, deeply impress.ed foveae at one-half
the length from the posterior angles, mutually slightly more distant than
either from the eye, connected by an anteriorly arcuate, parabolic, feebly
impressed, and narrow channel, which terminates completely in the foveae;
supra-antennal tuberculations small, angulate, and not very prominent,

COLEOPTERA. 99

connected by a distinctly rounded, transverse, and somewhat feeble ridge ;
antennae more than two-thirds longer than the head, slender, eighth, ninth,
and tenth joints sub-equal in length, increasing uniformly and rapidly in
width. Prothorax widest just visibly in advance of the middle, where it is
as wide as long, and slightly wider than the head ; sides very feebly arcuate
anteriorly and nearly straight posteriorly ; apex one-half as long as the
pronotal width, and three-fourths as long as the base ; disk very strongly
convex ; having a slender, medial, fusiform canaliculation attaining neither
the apex nor the transverse channel ; the latter is at a little more than one-
fourth the length from the base, nearly straight, narrow but distinct, strongly
and abruptly cusped posteriorly in the middle, and terminating at the sides
in two rather large, rounded foveae. Elytra at base distinctly wider tlian
the jjronotum ; sides almost parallel, rather distinctly arcuate : disk mode-
rately convex, very coarsely and excessively faintly impressed, distinctly
longer than wide, and nearly as long as the head ; sutural striae strong,
arcuate, lateral extremely short, broadly impressed, and rudimentary.
Abdomen distinctly narrower than the elytra ; sides parallel and straight ;
surface impunctate, broadly convex ; first three dorsal segments equal, basal
ones without any visible carinae. Legs rather short and slender. Length
0.7-0.8 mm.

Tampa, Florida, 3; Ciipron, Florida, 1.

The description is taken from Dr. LeConte's type, which is a
female. I cannot distinguish Dr. LeConte's tenuis (1. c. No. 30) from
this species by any characters which are worthy of mention. The
lateral striae of the elytra appear to be much longer and stronger in
some specimens than in others, and the pubescence is easily rubbed
from the elytra. The head is noticeably broader in the males than
in the females.

The identity of tenuis with the above-described form is rendered
still more probable from the fact that two specimens before me, appa-
rently not possessed by Dr. LeConte, and collected at Tampa on the
same day, and therefore probably at the same spot as the specimen
described by him as debih's, resemble much more closely, and in fact
are almost exactly similar to his unique type of te7iuis from Capron.

4. E. loilgicollis n. sp.— Form slightly robust. Pubescence of head
and prothorax very sparse, short, and inconspicuous, that of the elytra and
abdomen rather long, fine, dense, and conspicuous, pale fulvo-cinereous.
Color of head, pronotum, and antennae rufo-testaeeous, that of the elytra,
legs, and abdomen paler, more flavate, rather ferruginous. Head lar^e, as
long as wide ; eyes rather large, not very prominent ; genae slightly con-
vergent and arcuate, much longer than the eye ; base broadly and evenly
sinuate ; interocular surface broadly, very strongly, evenly, and, in the
posterior third, uninterruptedly convex, polished, coarsely, but rather feebly
punctate at the sides, entirely impunctate along the middle ; having at two-
fifths the length from the base two very small and feebly impressed rounded

100 NORTH AMERICAN

spongy-pubescent foveae, mutually one-third more distant than either from
the eye, connected by an anteriorly arcuate convergent channel, which near
the foveae is very feebly impressed, but which, behind the frontal ridge, is
longitudinally widened, much more deeply impressed, and nearly transverse ;
supra-antennal tuberculations large, callous, and prominent, angulate ex-
ternally, each having behind the callosity a small, round puncture ; con-
nected by the feebly arcuate, rounded, transverse, frontal ridge ; antennae
one-third longer than the head, somewhat slender, club robust, ninth joint
slightly longer than the eighth, twice as wide as long, three-fourths as long
and wide as the tenth, eleventh as wide as long, slightly wider than the
tenth, sides nearly parallel, abruptly and acutely produced in the middle
at apex ; last joint of the maxillary palpi rather long, slender. Prothorax
widest just before the middle, where the sides are just visibly convergent
and feebly arcuate, then much more strongly convergent and feebly sinuate
anteriorly, and moderately convergent and nearly straight posteriorly, feebly
and minutely sinuate just behind the middle; apex fully one-half as long
as the pronotal width, and three-fourths as long as the base; disk strongly
convex, polished, impunctate, slightly narrower than the head, and dis-
tinctly longer than wide; having just before the middle an elongated, oval,
median puncture, and, at one-fifth the length from the base, a transverse,
posteriorly cusped, very feeble groove, dilated at the point into a deep punc-
tiform impression, and terminating at the sides in two small, very deeply
impressed foveae. Elytra at base distinctly wider than the pronotum ; sides
vfry feebly divergent posteriorly, and moderately arcuate ; disk slightly
longer than wide, rather feebly convex, polished, impunctate; sutural striae
deep, arcuate, lateral two -fifths as long as the elytra, distinct. Abdomen
very slightly narrower than, and equal in length to the elytra; sides just
visibly divergent posteriorly and straight ; border wide and very feebly in-
clined ; surface rather convex, shining, very slightly and sparsely asperate;
first three dorsal segments equal in length ; first two with two rather close
divergent carinae, which are rather long and prominent. Legs rather long
and slender. Length 1.3 mm.

Deer Park, Maryland, 1.

The description is taken from the uiii(|ue specimen which is a
male ; the terminal ventral sejxinent is strongly convex, and the
penultimate has a very deep transverse impressed channel; the poste-
rior edges of the tiiird and toiirtli S('i;ments are sinuate and produced
in tlie most complex and inde^crihuhle nuinner. The sjjccies is very
distinct in appearance, because of the peculiar conformation of the
head, with its very long genae, and also on account of the elongated
prothorax.

5. E. diflicilis Lee. — Bost. Journ. VI. p. 100. — Form slender; sides
parallel. Pubescence very fine, short, pale, moderately plentiful ; color of
body rufo-testaceous ; legs and tips of antennae just visibly paler. Head
rather large, as long as wide ; eyes rather small, but prominent ; genae
large, convergent behind, much longer than the eye ; liase sinuate in the

COLEOPTERA. 101

middle; interocnlar surface impiuictate and highly polished, witli an elon-
gated median puncture at the base, and two small, circular, spongy-pubes-
cent foveae at more than one-third the length from the base, and but slightly
more widely separated than either from the corresponding eye; intermediate
surface rather strongly convex ; from each fovea proceeds a narrow impressed
channel, the two being at first i:>arallel and then convergent, coalescing
anteriorly by a very wide channel behind the frontal ridge ; supra-antennal
tuberculations very strong, angulate externally, joined by a transverse and
very strong ridge ; antennae one-third longer than the head, moderately
slender, club somewhat robust, ninth joint no longer than the eighth, twice
as wide as long, tenth one-half longer and wider than the ninth, eleventh
very slightly wider than the tenth, scarcely wider than long, nearly globular,
abruptly acuminate at tip. Prothorax widest at one-third its length from
the apex, where it is slightly naiTower than the head, and as broad as long,
contiguous sides parallel for a short distance, thence convergent and broadly
reentrant behind ; apex one-half as long as the greatest width, and two-
thirds as long as the base, both feebly arcuate ; disk rather strongly convex,
polished, minutely and sparsely punctulate ; having a deep, elongated,
medial puncture slightly before the middle, also a large, deeply imjiressed,
medial fovea at a little more than one-fourth the length from the base, and
two lateral, circular, spongy-pubescent foveae behind the middle, connected
with the medial one by an extremely narrow and feeble groove, which is
scarcely visible. Elytra at base very slightly wider than the pronotum, and
about as wide as the head ; sides nearly parallel and rather strongly arcuate ;
disk distinctly longer than wide, and somewhat shorter than the head and
prothorax together, extremely minutely and sparsely punctulate, rather
feebly convex ; sutural striae strong, feebly arcuate, very close, lateral short,
broadly impressed ; humeri rather jirominent. Abdomen at base slightly
wider than the elytra ; sides feebly divergent posteriorly and straight ; first
two with two rather long and well-marked divergent carinae proceeding from
the extremities of transverse si^ongy-pubescent patches ; border strong,
nearly flat ; surface polished, feebly convex, scarcely punctulate. Legs well
developed ; middle femora slightly swollen. Length 1.2 mm.

Georgia, 1.

Described from the unique type in Dr. LeConte's collection.

6. E. congener n. sp. — Form rather slender. Pubescence somewhat
short, coarse, and dense, semi-erect, pale, and rather conspicuous ; color of
body rather dark reddish-testaceous throughout, legs slightly paler and more
flavate. Head rather large, slightly broader than long ; eyes large, promi-
nent ; genae not prominent, slightly longer than the eye, very convergent ;
base broadly sinuate, with a slight medial puncture ; interocnlar surface
slightly punctulate toward the eyes ; having, at slightly more than one-
third the length from the base, two minute, round, spongy-pubescent foveae
which are mutually scarcely more distant than either from the adjacent eye,
connected by an anteriorly arcuate parabolic channel, which also extends
divergently behind them toward the genae ; intermediate surface strongly
and narrowly convex, impunctate, and polished ; supra-antennal tubercula-

102 NORTH AMEUICAN

tions very large and prominent, strongly angulate externally; connecting
ridge feelily arcuate anteriorly and somewhat strongly depressed in the mid-
dle ; antennae two-fifths longer than the head, somewhat slender, club short
and rather robust, joints three to eight moniliform, eighth very slightly
shorter than the seventh, and very slightly transverse, ninth as long as the
eighth, nearly twice as wide as long, tenth one-half longer and two-thirds
wider than the ninth, eleventh as wide as long, very slightly wider than the
tenth, abruptly truncate anteriorly, and acutely produced at the immediate
vertex. Prothorax widest just in advance of the middle, where it is as wide
as the head, and scarcely as wide as long ; sides thence very slightly con-
vergent and feebly arcuate for a short distance, and then abruptly very
strongly convergent and feebly sinuate anteriorly, convergent, straight, and
feebly undulated posteriorly ; apex very slightly less than one-half as long
as the pronotal width, and two-thirds as long as the base ; disk rather
strongly convex, polished, very minutely and sparsely punctulate; having
a small, elongated puncture just before the middle, and a broadly dilated
foveate impression at about one-fourth the length from the base, which is
connected with the deep, circular, spongy-pubescent lateral foveae just be-
hind the middle by narrow, arcuate, well-markeil grooves. Elytra at base
as wide as the head ; sides moderately divergent posteriorly and rather
strongly arcuate ; disk just visibly longer than wide, rather strongly convex,
shining, not punctate ; sutural striae strong, close, nearly straight, lateral
obsolete, except in the basal third, where they are broadly and feebly im-
pressed ; humeri rather prominent. Abdomen at base very slightly narrower
than the elytra ; sides slightly divergent posteriorly and straight ; border
strong, slightly inclined; surface broadly convex, polished, very minutely
and sparsely punctulate ; first three dorsals exactly equal in length; first
two witli two rather close, strongly divergent basal carinae, those of the first
longer and stronger than those of the second. Legs long, rather slender ;
middle femora of male swollen. Length 1.5 mm.

Washington, District of Columbia, 3.

The description is taken from a male in order to better compare it
with difflcilis to which it is extremely closely allied. It ditiers in the
shorter and much more robust terminal joint of the maxillary pali)i,
in its sligiilly more robust form of body, especially behind, and in its
distinctly shorter and broader abdomen, sides of the elytra more
divergent and arcuate, and in the sexual characters. The apical edge
of the third ventral segment in (lijfrrih's is comi)letely entire without
any trace of irregularity, while in congener it is produced for a short
distance in the midiUe ; the fourth segment is relatively shorter and
has a distinct median tubercle; the sixth segment is broader and
shorter and nion.' broadly rounded anteriorly than in difficills.

"NVe have here an instance of cases which frequently arise in syste-
matic investigations of this nature, and which are extremely puzzling.
After cai'eful scrutiny of tiie general form of the insect we are almost
morally convinced of the identity of two si)ecimens, but upon more

COLKOPTERA. 103

minute study certain modifications of special organs are seen wliicli
are quite positive, but the nature and importance of wliicli we can-
not from our very limited knowledge interpret with any degree of
certainty. Probably the best course to pursue in such a dilemma is
to describe the aberrant form and let the truth be discovered in the
future, when more material shall have been accumulated. In tliis
case it is very desirable to obtain a series of d/'JJlcilis, in order to see
what variations occur in its male sexual characters.

7. E. sexiialis n. sp. — Form robust. Color throughout uniformly rather
dark reddish-ferruginous, legs just visibly paler ; pubescence sparse, very
long, bristling and coarse, somewhat conspicuoiis, especially on the elytra
and abdomen ; integuments very highly polished, very remotely, minutely,
and feebly punctulate. Head rather large, a little broader than long ; eyes
moderate, very convex, and prominent ; genae not prominent, strongly con-
vergent, as long as the eye ; base transversely and rather strongly sinuate ;
interocular surface having two round, feebly impressed, spongy-pubescent
foveae at one-third the length from the base, three-fourths more widely
separated than either from the eye, connected by an anteriorly arcuate para-
bolic impressed channel, slightly longer than the distance between the foveae,
and becoming more longitudinally dilated and deeply impressed at the apex
just behind the frontal ridge ; the impressed channel does not terminate
posteriorly in the foveae, but extends behind them toward the genae ; inter-
mediate surface very strongly and prominently convex, very gradually
declivoiTS anteriorly nearly throughout its length ; supra-antennal tubercu-
lations very large and strongly developed, swollen and angulate externally,
connected by the nearly straight, transverse, and very strong frontal ridge,
which, however, becomes lower and very narrow in the middle, where it is
feebly notched ; labrum very strongly constricted at base, anterior margin
transverse, lateral angles very acute ; antennae nearly as long as the head
and prothorax together, very robust, coarsely setose, joints three to eight
very slightly transverse, just visibly increasing in width, eighth scarcely
narrower than the second, ninth transversely oval, scarcely one-third wider
than long, tenth somewhat longer, nearly twice as wide as long, eleventh
distinctly wider than the tenth, ovular, finely, abruptly, and strongly pro-
duced at the tip. Prothorax widest just before the middle, where it is dis-
tinctly wider than long and very slightly narrower than the head ; sides
arcuate anteriorly, straight posteriorly ; ajpex less than one-half as long as
the pronotal width and two-thirds as long as the base ; disk broadly convex,
having a very narrow elongated fusiform impression in front of the middle,
and, at one-third the length from the base, a nearly transverse deeply
impressed channel, broadly dilated and deepened into a very prominent
impressed puncture in the middle and terminating laterally in two circular
deeply impressed spongy-pubescent foveae ; the basal margin also has an
indentation just within each basal angle. Elytra at base slightly wider than
the pronotum ; sides rather strongly divergent and strongly arcuate ; disk
rather strongly convex, nearly quadrate ; sutural striae very strong, close,

104 NORTH AMERICAN

feebly arcuate, lateral broadly impressed, rather long ; humeri and basal
foveae strong. Abdomen scarcely narrower than the elytra ; sides parallel
and straight ; border strong and flat ; surface broadly convex, first three
dorsal segments equal ; first two having two nearly parallel narrow and
rather distant carinae through nearly their entire length which are very
strong and prominent, also very slightly incurvate at tips. Legs long and
slender. Length 1.(5 mm.

South Carolina, 1 % •

A clear description of the very wonderful sexual characters in the
male of this species is very difficult. Tiie third ventral segment is
broadly and feebly emarginate in its middle third at apex, with the
lateral angles of the emargination swollen and feebly and roundly
produced, the surface bordering the same impressed ; from under the
third segment two strong widely divergent distant spines protrude,
extending along the surface of tlie fourth and almost contiguous with
it ; they are slightly incurvate' at the lips and very acute. Tiie fourth
segment is very strongly and acutely sinuate anteriorly in the middle,
broadly roundly and very strongly emarginate througliout its width
posteriorly; having in the middle and dividing it equallji in width
two small strong tubercles. Fifth segment also strongly emarginate
throughout posterioj-ly and having its surface very broadly impressed,
the impression having a small impressed puncture at each lateral ex-
tremity ; the sixth segment is abruptly very strongly convex, feebly
and roundly produced posteriorly, obtusely angulate anteriorly, slightly
wider than long, rather strongly carinate througliout its length in the
middle.

The species is one of the largest and finest of the genus and is very
distinct in all its characters.

S. E. spiiiifer n. sp. — Form somewhat robust. Pubescence fine, close,
rather si)arse and inconspicuous. Color throughout rather dark reddish-
ferruginous, legs slightly paler ; integuments highly polisheil and impunc-
tate. Head rather large, slightly wider than long ; eyes rather large and
moderately prominent; genae prominent, almost parallel, longer than the
eye; base broadly and very feebly sinuate ; inteiocular surface having two
rather small circular spongy-pubescent foveae at more than two-fifths the
length from the base opposite the anterior third of the eyes, mutually two-
thirds more distant than either from the eye, connected by an anteriorly
arcuate parabolic impressed channel, rather acute and longitudinally ex-
panded anteriorly and slightly longer than the width at the foveae ; inter-
mediate surface strongly convex, bearing at the base of the occiput an
elongated canalicular puncture ; supra-antennal tuberculations very large
and prominent, roundly angulate externally and Joiued by a rather promi-
nent slightly arcuate ridge, much depressed in the middle; antennae about
one-half longer than the head, rather slender, club somewhat short and
robust, ninth joint slightly longer tlian the eighth, twice as wide as long.

COLEOPTERA. 105

two-thirds as long and wide as tlie tenth, both transversely elliptical,
eleventh very slightly wider than the tenth, slightly longer than wide,
abruptly produced in the middle at tip ; last joint of the maxillary palpi
very short and robust, conoidal, scarcely one-half longer than wide. Pro-
thorax widest at one-third its length from the apex where it is about as wide
as the head and about one-sixth wider than long; sides rather strongly
arcuate anteriorly, somewhat feebly and evenly so posteriorly ; apex scarcely
one-half as long as the pronotal width and nearly three-fourths as long as
the base, both feebly arcuate ; posterior angles rounded ; disk rather feebly
convex, having a rather deep slightly elongated oval puncture just before the
middle, and, at one-third tlie length from the base, a transverse somewhat
slender but deeply impressed posteriorly cusped groove, expanded at the
cusp point into a large naked pnnctiform impression and terminating at the
sides iu large rounded rather shallow spongy-pubescent foveae. Elytra at
base very slightly wider than the pronotum ; sides very feebly divergent
posteriorly and somewhat feebly arcuate ; disk very slightly longer than
wide, moderately convex ; sutural striae close, nearly straight, strong,
lateral nearly one-half as long as the elytra, rather well marked, originating
in rather large spongy-jiubescent foveae : humeri moderately prominent.
Abdomen very slightly shorter than the elytra, and very slightly narrower;
sides parallel and straight ; border inclined ; surface moderately convex ;
first tliree dorsal segments sub-equal in lengtli ; first two having two strongly
divergent strongly marked carinae through slightly more than the basal
lialf. Legs rather short and robust ; prosternal foveae large ; under surface
of the head without erect sensitive setae ; terminal claw of tarsi very long
and strong. Length 1.2—1.3 mm.

Columbus, Texas, 2; Georgia? 1.

The description is drawn from a male. The sexual characters of
this species are, in the male, very singular nearly equalling in this
respect those of sexualis. The third ventral segment is feebly and
narrowly sinuate in the middle and slightly swollen at each side of
the sinuation ; beyond these swellings laterally two long stout spines
protrude from beneath the segment, which are nearly parallel, exter-
nally arcuate, and feebly hooked internally at tip; they pass over and
touch the surface of the fourth and a part of the fifth segments ; the
anterior portion of the fourth segment is emarginate in the middle ;
the fifth is transversely lunate and partly encloses the terminal
segment ; it is transversely impressed in the middle ; the terminal
segment is slightly wider than long, angularly and feebly produced
anteriorly, and more roundly and equally feebly so posteriorly, surface
convex, sparsely punctate and feebly carinate along the middle. In
the female these striking characters entirely disappear, and the termi-
nal §egment is simply very abruptly strongly and acutely produced
in the middle ; this sex also has the terminal joint of the maxillary
palpus less robust.

lOG NORTH AMERICAN

9. E. linearis Lee. — Bost. Journ. VI. p. 104. — Form somewhat slender.
Pubescence coaine, rather long and abundant, evenly distributed, pale fulvo-
cinereous with long widely scattered setae on the abdomen ; color of entire
body and antennae ferruginous, legs paler and more flavate. Head large,
wider tlian long; eyes large, moderately prominent ; genae not prominent,
shorter tliantheeye; interocular surface polished and impunctate, having
at the middle of the base a small puncture, and above two small spongy-
pubescent foveae at one-third the length from the base, rather widely
separated ; intermediate surface strongly convex ; foveae connected by an
anteriorly curvate elongate parabolic channel, which is strongly impressed ;
supra-antennal tuberculations elongated and very strong, each crossed by a
narrow channel, connected by a straight transverse ridge which is prominent
and slightly less elevated in the middle ; antennae nearly as long as the
head and prothorax together, robust, second joint much smaller than the
first, club elongated, ninth joint more than twice as wide as long, slightly
narrower and scarcely more than one-half as long as the tenth, eleventh
scarcely wider than the tenth, as long as the three preceding joints together,
elongated, conoidal, rather finely acuminate. Prothorax widest slightly in
advance of the middle where it is distinctly wider than long and about as
wide as the head ; sides arcuate anteriorly, nearly straight posteriorly ; apex
transverse, much less than one-half as long as the pronotal width and two-
thirds as long as the base which is rather strongly arcuate; disk polished,
rather broadly convex, strongly evenly finely and rather sparsely jMinctate;
median canaliculation strong, long and narrow, fusiform ; at one-third the
length from the base there is a transverse posteriorly cusped channel ex-
panded at the cusp point and at the ends into round deeply impressed foveae,
tiie lateral ones the stronger. Elytra at base just visibly wider than the
pronotum ; sides very slightly divergent posteriorly, slightly arcuate, more
strongly so toward the tips ; together transversely truncate behind ; disk
slightly longer than wide, moderately convex, rather depressed at the base,
polished, very minutely and sparsely punctulate ; sutural striae very strong,
nearly straight, close, lateral well marked, one-half as long as the elytra ;
humeri prominent. Abdomen very slightly narrower than the elytra; sides
parallel and straight ; border very wide but Hat ; surface very feebly convex,
polished, finely and very distantly punctulate ; first three segments equal
in length ; first and second dorsals with two rather short slightly divergent
carinae at base ; under surface of alnlomen more coarsely strongly and closely
punctate than the upper ; last ventral segment angularly produced and
rounded behind, with a very fine medial carina. Under surface of the head
lacking the long erect sensitive setae, these being replaced by a fine close
pubescence; punctures large deep and close. Length 1.3-1.6 mm.

Georgia, i) ; Florida, 7; Detroit, Micliigan, 1,

A very common .species and apparently much more abundant at
the South. The description is taken from Dr. LeConte'.s type, which
is a male; the last ventral segment appears to be more produced at
tij) in the female, and is not carinate.

COLEOPTERA. 107

10. E. illterriiptus Lee. — Bost. Joum. VI. p. lOJ. — Form ratlier
robust. Pubescence coarse, rather long, abundant, pale Havo-ciuereous.
Color throughout ferruginous ; legs very slightly paler. Head rather large,
as wide as long ; eyes moderate, prominent ; gejiae not prominent, as long
as the eyes ; iuterocular surface roughly punctate at the sides, polished and
impunctate in the middle, having two very small widely separated spongy-
pubescent foveae at one-third the length from the base, connected by an
anteriorly curvate parabolic deeply impressed groove, longer than wide ;
intermediate surface very strongly convex ; supra-antennal tuberculations
very sti-ong, angulate externally, connected by an almost transverse acute
and prominent carina ; antennae nearly as long as the head and prothorax
together, robust, club relatively slender, basal joint much more robust and
elongated than the second, joints three to eight moniliform, equal in width,
the latter shorter than the seventh and distinctly transverse, ninth longer
than the eighth, not twice as wide as long, trapezoidal, tenth longer and
wider than the ninth, two-thirds wider than long, trapezoidal, eleventh
slightly wider than the tenth, slightly wider than long, abruptly and acutely
produced in Ihe middle at apex ; last joint of maxillary palpi very robust,
conoidal. Prothorax widest at the middle wliere it is much wider than long
and very slightly wider than the head ; sides very strongly arcuate ante-
riorly and slightly sinuate posteriorly ; base nearly twice as wide as the
apex ; disk strongly convex, polished, sparsely and very minutely punctu- ■
late ; medial puncture very small, at the centre, elongated, posterior imjires-
sion very wide, transverse, cusped, groove at one-fourth the length from
the base, lateral foveae small, very deep, spongy-pubescent. Elytra at base
slightly M'ider than the pronotum ; sides very feebly divergent, rather
strongly arcuate ; disk quadrate, moderately convex, polished, very minutely
punctulate ; sutural striae well marked, lateral also distinct through the
basal half; humeri prominent. Abdominal segments very slightly narrower
than the elytra ; sides parallel and straight border very wide and flat ; sur-
face feebly convex, polished, very minutely punctulate ; first three segments
equal ; first two dorsals with two strongly divergent well-marked carinae,
nearly two-thirds as long as the segment. Legs rather slender ; femora very
moderately robust. Length 1.4—1.6 mm.

Washington, District of Columbia, 2; Lee County, Virginia, 1;
Georgia, 2 ; Jackson, Mississippi, 1.

A very well-marked species. Tlie description is taken from a
male, LeConte's type ; the sexual characters are somewhat notice-
able. The apical edge of the third ventral segment has two lateral
callosities, from each of which proceeds posteriorly a short obtuse
tooth ; the anterior margin of the fourth is emarginate in the middle ;
the last segment is obtusely produced in the middle, and has a
narrow medial carina ; its surface is very convex and is strongly
punctate. In the female the sixth segment is much broader, and is
more strongly and abruptly produced in the middle.

108 NOUTii a:merica\

11. E. COllflueus Lee. — Bost. Joiirn. YI. p. 105. — Form slender, de-
pressed ; sides parallel. Pubescence rather fine and dense, recumbent, very
pale ; color of body pale reddish-testaceous, elytra sometimes slijjhtly paler
than the head and prothorax, antennae and less scarcely paler. Head very
large, Hat above, slightly wider than long; eyes rather small, moderately
prominent ; genae prominent, obtusely rounded, slightly longer than the
eye ; base transverse, distinctly sinuate in the middle ; interocular surface
coarsely strongly* and closely punctate at the sides, impunctate along the
middle, having a strong median carina at base, very flat throughout behind,
having two minute naked foveae at one-third the length from the base,
iiiutually as distant as either from the adjacent eye ; intermediate surface
feebly convex, each fovea is continued anteriorly by a moderately deep
irregular canaliculation, the two being parallel and scarcely joined ante-
riorly ; supra-antennal tuberculations rather prominent, joined by a very
broadly arcuate and rather feeble ridge ; antennae barely one-third longer
than the head, rather slender, club small, joints three to eight very small,
moniliform, equal in width, eighth shortest, ninth one-half wider than long,
wider than the eighth, equal in length to the tenth, tenth oue-third wider
than the ninth, eleventh very slightly wider than the tenth, nearly as wide
as long, sides parallel ; second joint of the maxillary palpi long, feebly
clavate. Prothorax widest distinctly before the middle where it is just per-
cepti1)ly wider than long and distinctly narrower than the head ; sides very
feebly sinuate anteriorly, minutely undulated but nearly straight posteriorly,
very strongly convergent; apex scarcely one-half as wide as the greatest
pronotal width, three-fourths as long as the base, both very feebly arcuate;
disk very feebly and coarsely punctulate, shining, having an elongate medial
canaliculate puncture, also a small very deep medial fovea at one-fourth the
length from the base, which is sometimes partially confluent with the medial
canaliculation, also two lateral d(;eply impressed foveae not connected with
the medial one by an impressed channel. Elytra at base as wide as the
pronotum ; sides nearly parallel, feebly arcuate ; disk depressed, slightly
longer than wide and slightly shorter than the head and pronotum together,
polished, scarcely punctulate ; humeri prominent ; sutural striae very strong,
arcuate toward the apices, approximate, lateral distinct, becoming obsolete
at two-fifths the; length from the base. Abdominal segments nearly as wide
as the elytra, very gradually increasing in width posteriorly ; first three of
equal length ; first two dorsals with two short rather approximate strongly
divergent and feeble carinae ; border strong, flat ; surface feebly convex,
shining, scarcely punctate. Legs short and slender. Length 1. '2-1.4 mm.

jMiddle States, 2 ; Cambridge, Massacliusetts, 1 ; "Wasliinnton, Dis-
trict of Columbia, 1 ; Lee County, Virginia, 1 ; Lake Superior, 1.

The description is taken from Dr. LeConte's type, a female. The
males are smaller and apart from a slightly more slender antenna,
j)resent no appreciable difference, except in regard to the sexual
characters proper, which are very marked. The third ventral seg-
ment is abruptly and strongly bisinuate in its middle third at apex;

C'OLEOPTEKA. 109

the sinuous portion having tufts of fine pale setae projecting poste-
riorly ; the terminal segment is lozenge-shape, slightly broader than
long and more acutely angulate anteriorly than posteriorly, surface
flat, very minutely punctulate, and carinate along the middle. Tlie
under surface of the head in both sexes is strongly and coarsely
punctate, but does not possess the erect sensitive setae.

The species is recognizable at a glance by its parallel depressed
form and very large flat head.

12. E. pertenilis n. sp. — Form very slender ; sides parallel. Pubes-
cence tine, short, rather dense and conspicuous on the elytra and abdomen ;
color throughout dark ferruginous-red ; integuments slightly rough, finely
and very indistinctly punctulate and nearly opaque. Head very large,
nearly as long as wide ; eyes large, round, not prominent, scarcely visible
from above ; genae very long, convergent, arcuate, longer than the eye ; base
broadly and rather strongly sinuate ; interocular surface nearly flat above :
punctures distinct and isolated laterally ; having at nearly one-half the
length from the base two very small shallow spongy-pubescent foveae,
mutually but very slightly more distant than either from the eye, from
which there extend anteriorly two narrow convergent rather deeply im-
pressed channels, connected behind the frontal ridge by a short straight
transverse channel equally wide and deep ; intermediate surface strongly
convex and somewhat abruptly declivous anteriorly; supra-antenual tuber-
culations not distinct, squarely angulate over the antennae, connected by the
feebly arcuate and rather prominent frontal ridge ; antennae very short and
robust, joints three to ten transverse, joints nine and ten equal in length and
no longer than the eighth, the former two and one-half times, the latter more
than three times as wide as long, eleventh slightly wider than the tenth,
scarcely longer than wide, conoidal, acuminate ; labrum small, deeply bi-
lobed ; maxillary palpi i-obust, third joint small, transversely cuneate, second
very robust at tip, fourth conical, finely acuminate, not twice a.s long as wide.
Prothorax widest slightly before the middle where it is slightly narrower
than the head and just visibly longer than wide ; sides at this point rounded,
feebly sinuate anteriorly, nearly straight posteriorly ; apex one-half as long
as the pronotal width and four-fifths as long as the base ; disk strongly con-
vex, having just before the centre a rather large oval impressed puncture,
and, at one-fifth the length from the base, a transverse punctiform impres-
sion strongest posteriorly and extending laterally and anteriorly, the arms
becoming obsolete before reaching the very small shallow lateral foveae
situated at one-third the length from the base. Elytra at base scarcely per-
ceptibly wider than the head ; sides nearly parallel. and very feebly arcuate ;.
disk nearly one-fourth longer than wide, moderately convex : sutural striae
strong, not very close, feebly arcuate, lateral very short, oblique and narrow ;
humeri rather prominent. Abdomen at base very slightly narrower than
the elytra; sides distinctly divergent posteriorly and straight, so that the
third segment is slightly wider than the elytra and quite as wide as the head ;
border rather strong; surface narrowly convex ; first three dorsal segments-
Cont. Part 11. 4. Decembek, 1SS4.

110 NORTH AMERICAN

equal in length ; first two with two short rather distant fine and excessively
feeble carinae. Legs rather long, slender. Length 0.95 mm.

"Washington, District of Columbia, 1 9.

This singular species is so different in shape from the usual typical
form of the genus, and differs in so many of its minor characters that
it almost seems as if it should be placed at least in a subgenus, and as
far as possible removed from cannliculatus. The very robust maxil-
lary palpi, bilobed labrum, and eyes scarcely visible from above but
almost entirely so from beneath, are the most salient of these aberrant
characters.

13. E. cavicollis Lee— Proc. Am. Phil. Soc. XVII. p. 387.— Form
moderately robust ; color of head and prothorax dark piceo-rufous, of the
elytra, legs and antennae paler, reddish-testaceous ; abdomen darker than
the elytra ; pubescence rather abundant, coarse, setiforra and conspicuous ;'
integuments polislied, punctate. Head large, very slightly wider than long,
truncate anteriorly ; basal angles obsolete ; eyes rather large, moderately
prominent ;' interocular surface having two deep straight strongly conver-
gent channels beginning opposite the eyes and joined, just behind the
strongly raised anterior edge of the epistoma, by a short arcuate groove ;
intermediate surface strongly convex ; at the base of the occiput there is a
short medial carina, and toward the sides the surface is densely, evenly
and very minutely punctate ; antennal tuberculations prominent ; antennae
moderately robust, as long as the head and prothorax together, penultimate
joint as long as the preceding, twice as wide as long, eleventh as long as the
three preceding together. Prothorax widest at one-third the length from the
apex where it is very slightly wider than the head and distinctly wider than
long ; sides thence very strongly convergent anteriorly and strongly sinuate,
sliglitly less convergent posteriorly and nearly straight ; anterior margin
much shorter than the base, feebly arcuate, the latter transverse ; disk
strongly convex, finely and evenly punctate, punctures strong and widely
separated ; near the base there is a very large nude pit-like impression, not
connected with the lateral impressions which are \{?ry deep and irregular ;
in the middle anteriorly there is a very feeble longitudinal impression which
is so slight as to be scarcely visible. Elytra at base just perceptibly wider
than the pronotum ; sides feebly divergent ; together transversely truncate
behind ; suture about one-half longer than the pnmotum ; disk finely punc-
tate, punctures arranged in rows near the suture, very minute ; sutural
striae approximate, straight, rather strong ; tliere are also on each elytron
at the base three impressed pits, the two exterior being arranged in a nearly
longitudinal line, j)rolonged posteriorly by a very feeble impressed channel
rapidly becoming obsolete; humeri prominently swollen. Abdominal seg-
ments increasing slightly in width ; first slightly narrower than the con-
tiguous elytra; surface moderately convex, polished, inipunctate ; border
strong ; first two segments having two distant widely diverging prominent
basal carinae. Legs rather sliort and robust ; tarsi narrower at base; claw
long, rather strongly arcuate, testaceous. Length 1.4 mm.

COLEOPTERA. Ill

Tampa, Florida, 3.

This extremely well-marked species is described from Dr. LeConte's
type specimen ; all its characters are of pronounced singularity. The
posterior extremities of the frontal canaliculations are scarcely per-
ceptibly dilated, and do not, as far as I can observe, terminate in
foveae as mentioned by Dr. LeConte.

Although possessed of a medial longitudinal impression on tlie
anterior portion of the pronotum, I have included this species in the
section without such canaliculation because of its excessive feebleness
and diflfuseness, and on account of the analogy which the species bears
to the latter in most of its characters.

14. E. crinitus Brend.— Proc. Phil. Soc. Phil. 1865, p. 260.— Form
•rather robust; pubescence pale fiavo-cinereous, very dense, uniformly dis-
tributed, conspicuous, having a few much longer setae on the abdomen ;
color throughout pale ferruginous, legs and antennae not paler ; integu-
ments feebly shining. Head much broader than long ; epistoma arcuate
anteriorly; posterior angles obsolete; eyes rather large and prominent;
interocular surface not punctate, having two round very deeply impressed
foveae, pubescent at the bottom and on a line with the anterior portions of
the eyes, mutually nearly twice as distant as either from the eye; interme-
diate surface entire, very convex ; anterior canaliculations strongly conver-
gent and extremely feeble ; supra-antennal tuberculations very prominent ;
antennae robust, tenth joint twice as wide as long, eleventh unusually
slender, elongated, gradually acuminate toward tip, slightly longer than the
three preceding together. Prothorax large, much longer and just visibly
wider than the head, widest at one-third its length from the apex where it
is very slightly wider than long ; sides thence very strongly convergent and
slightly arcuate anteriorly, slightly less convergent and slightly sinuate
posteriorly; anterior margin shorter than the base, nearly equally and feebly
arcuate; disk moderately convex, very feebly punctulate ; having at one-
fourth the length from the base a very strong transverse canaliculation
which is strongly cusped posteriorly in the middle, cusp-point but slightly
dilated into a puncture, arms terminating laterally in small deeply im-
pressed spongy-pubescent foveae. Elytra at base slightly wider than the
pronotum ; sides just visibly divergent posteriorly, scarcely one-fifth longer
than the width at base, rather strongly and evenly arcuate throughout ;
together transversely truncate behind ; suture nearly one-half longer than
_ the pronotum ; disk depressed, finely feebly and confusedly punctulate ;
sutural striae outwardly arcuate, strong ; at the base of each elytron there
is a longitudinal impression which entirely disappears at one-third the
length posteriorly ; humeri prominent. Abdominal segments as wide as, the
contiguous elytra ; sides parallel ; margin strong ; surface very feebly con-
vex, confusedly and minutely roughened; first and second segments having
at the base two short distant feeble carinae which are somewliat strongly
divergent. Legs slender. Length 1.6 mm.

112 NORTH AMERICAN

Detroit, Michigan, 1 ; Lee County, Virginia, 3.

The foiirtii joint of the ijiaxillary palpi is moderately robust and
much longer than the first two together ; the tarsi are very slender
with the second and third joints much elongated. The under sur-
face of the head is covered densely with long erect setae, which are
dilated at tip.

15. E. capitullllll n. sp. — Form somewhat robust. Pubescence fine,
short, evenly distributed, rather close, pale fulvo-cinereous, color throughout
reddish-testaceous or ferruginous ; legs and antennae scarcely paler. Head
small, as wide as long; eyes large, moderately prominent ; genae prominent,
acutely rounded, much smaller tlian the eye ; posterior margin broadly
truncate and sinuate ; interocular surface highly polished and impunctate,
having two rounded impressed spongy-pubescent foveae on a line with the
middle of the eyes, connected by an anteriorly arcuate parabolic impressed
channel of nearly equal depth throughout ; intermediate surface entire,
rather strongly convex ; supra-antennal tubereulations elongated, promi-
nent, connecting ridge wide, somewhat prominent and lower in the middle ;
clypeus strongly rounded anteriorly ; antennae short, slender, scarcely more
than one-third longer than the head, joints eight to ten equal in length,
increasing uniformly in width, the latter twice as wide as long, eleventh
much wider than the tenth, very robust, slightly longer than wide, conoidal,
obtusely acuminate ; last joint of the maxillary palpi robust, not twice as
long as wide, scarcely as long as the two preceding joints together; sub-
capital sensitive setae rather short and sparse. Prothorax widest at the
middle where it is about as wide as long and much wider than the head ;
sides thence rather less convergent anteriorly than posteriorly, very strongly
arcuate in the former, distinctly sinuate in the latter direction ; apex about
three-fifths as long as the base and much less than one-half the pronotal
width, nearly transverse, base broadly arcuate ; disk strongly convex, shin-
ing, impunctate, having at one-fourth the length from the base a transverse
posteriorly arcuate narrow groove, terminating at the sides in deep circular
spongy foveae, and coalescent with the anterior limit of a very deep longi-
tudinally oval medial impressed pit which nearly attains the basal margin
and is slightly spongy-pubescent at the bottom. Elytra at base slightly
wider than the pronotum ; sides moderately divergent posteriorly and strongly
arcuate ; together transversely truncate behind ; disk as long as wide, nearly
one-half longer than the prothorax, rather strongly convex, shining, im-
punctate ; sutural striae distinct, close, nearly straight, lateral distinct,
narrow, terminating at slightly more than one-half the length posteriorly;
humeri jirominent. Abdominal segments distinctly narrower than the
elytra ; sides parallel ; surface very strongly convex, highly polished and
impunctate ; first three segments decreasing uniformly in length ; first dorsal
having at the base two very short robust parallel earinae. Legs long and
slender; prosternal foveae large, transversely oval. Metasternum large,
h<aving on each side at its anterior border a transverse strongly pubescent
fovea. Length l.f) mm.

COLEOPTERA. 118

Tallahassee, Florida, 2 ; Ana Arbor, Michigan, 1.

The description is taken from one of the Tallahassee females, the
specimen from Ann Arbor is a male, and the only difference to be
observed besides the usual abdominal sexual characters, are the re-
markable lunate, strongly swollen middle femora, and the more slender
antennal club of the male. The head is if anything slightly smaller
in the male than in the female. The metasternal and prosternal
foveae are characteristic of the genus.

16. E. decorus n. sp. — Form rather slender. Color piceo-rufous ; elytra,
legs aud antennae paler, tiavo-t'erruginous. Pubescence sliorl, fine, sparse
and inconspicuous ; integuments sliining, those of the elytra distinctly trans-
lucent. Head large, robust, slightly longer than wide ; posterior angles
broadly rounded ; eyes large, prominent, their own length in advance of the
posterior angles ; interocnlar surface raised far above the eyes, ilat above,
rapidly declivous on all sides,, most minutely and sparsely punctulate,
having two deeply imj^ressed circular sjiongy-pubescent foveae on a line with
the posterior third of the eyes, and mutually one-half more distant than
either from the eye ; intermediate surface feebly convex aud entire ; canali-
oulations rapidly convergent, very feeble and becoming obsolete anteriorly ;
supra-antennal tuberculations large, rounded, prominent ; intermediate sur-
face slightly depressed ; epistoma rather strongly and evenly rounded ante-
riorly : antennae very short, very slightly longer than the head, second joint
more robust than the first, sub-globular, penultimate joints very short, ex-
tremely transverse ; tenth over four times as wide as long, acute laterally,
eleventh very robust, ovoidal, obtusely acuminate, nearly as long as the
five preceding joints togetlier, very densely pilose. Prothorax widest in the
middle where it is slightly wider than the head and nearly one-fourth wider
than long ; sides thence very strongly convergent anteriorly and posteriorly,
slightly more strongly so in the former direction in which they are very
strongly arcuate, feebly sinuate in the latter ; apex distinctly shorter than
the base, feebly and equally arcuate ; disk moderately convex, very finely
rather feebly and evenly i^unctulate, having at one-fifth the length from the
base a deeply impressed narrow posteriorly cusped groove, cusp-point slightly
enlarged as a nude punctiform impression nearly attaining the base, arms
nearly straight laterally, terminating at the sides in two circular deeply-
impressed spongy-pubescent foveae. Elytra nearly quadrate, at base just
visibly wider than the pronotum ; sides rather feebly divergent posteriorly,
strongly and evenly arcuate ; together transversely truncate behind ; disk
moderately convex, finely rather closely and very feebly punctulate, darker
at the base and apex ; sutural striae fine, approximate and straight, each
originating in a puncture near the base just exterior to which there is a
second very feeble puncture, and still exterior, nearer the base and distinctly
nearer the humeri than the suture there is a much larger punctiform im-
pression which is continued posteriorly by a feeble broadly impressed ill-
defined stria, arcuate externally and gradually approaching the suture,
becoming obsolete at one-fifth the length from the posterior margin. Abdo-

114: NORTH AMERICAN"

minal segments ilistinctly narrower than the elytra ; sides nearly parallel :
surface strongly convex, finely rather closely and evenly punctulate ; first
two dorsals with two extremely short widely divergent and very widely
separated basal carinae. Legs long and slender. Length 1.4 mm.

Cohjmbiis, Texas, 1.

Tlie fourth joint of the maxillary pal[>i i.s large, actiminate and
widest near the base. The under surface of the head in the type
specimen does not possess the loose pad of sensitive setae, but the
setae appear to have been removed by abrasion.

17. E. arciiatllS Lee. — Bost. Journ. VI, p. 10(3. — Form very moderately
robust : color throughout ferruginous, legs and antennae slightly paler and
more tlavate ; pubescence short, fine, sparse and rather inconspicuous ; in-
teguments highly polished. Head very slightly wider tJian long ; ]X)sterior
angles rather pronounced, narrowly rounded ; eyes small, prominent ; inter-
ocular surface impnnctate, having two small round spongy-pubescent foveae
on a line with the midille of the eyes and mutually twice as distant as either
from the eye ; intermediate surface entire, strongly convex ; canaliculations
strongly convergent, feebly impressed, short and joined anteriorly by a
broadly arcuate channel behind the transverse epistomal ridge which is
moderately prominent; supra-antennal tuberculations elongated, rather con-
spicuous, each crossed by a narrow channel ; labrura three times as wide as
long, constricted at base, broadly sinuate anteriorly, angles rounded, bear-
ing six or seven setae along the anterior edge resembling those of Ilarpalus :
antennae one-half longer than the head, very si>arsely setose toward the
base, eleventh joint conical, acuminate, elongated, as long as the four pre-
ceding joints together. Prothorax widest at the middle Avhere it is as wide
as the head and slightly narrower than long ; sides thence equally and very
strongly convergent anteriorly and posteriorly, very strongly arcuate in
the former and feebly sinuate in the latter direction ; apex slightly shorter
than the base, equally and feel)ly arcuate ; disk strongly and evenly c-onvex,
impuuctate, having at one-fourth the length from tlie base a transverse
channel in the form of a posteriorly pointed cusp, cusp-point slightly pro-
longed posteriorly in the form of a nude punctiform impression, arms termi-
nating laterally in rather large nude deeply impressed foveae. Elytra at
base just visibly wider than the pronotum ; sides somewliat strongly diver-
gent, one-third longer than the width at base, strongly and evenly arcuate
throughout : together transversely truncate behind ; suture scarcely one-
third longer than the jironotum ; disk rather convex, impuuctate; sutural
striae arcuate, feeble ; basal canaliculations mther strong, disappearing at
one-third the length from the base ; humeral protuberances rather strong.
Abdominal segments increasing very slightly in width, first slightly nar-
rowir than the contiguous elytra ; surface imj)unctate, convex ; border
strong ; first segment without dorsal carinae. Legs long and slender ;
second joint of the posterior tarsi very slender, greatly elongated, nearly
twice as long as the last joint. Length 1.0-1.2 nuu.

COLEOPTERA. 115

Georgia, 2 ; Virginia, 1.

The description is taken from Dr. LeConte's type wliich is a male.
The maxillary palpi are moderately robust, first joint very short and
slender, second nearly three times as long, very slender at base and
extremely strongly clavate toward tip, third sub-globular slightly
narrower than the tip of" the second, fourth nearly as long as the first
three together, strongly fusiform, finely acuminate at tip and more
than twice as long as wide. The pad of sensitive setae on the under
surfoce of the head is rather sparse, and in one specimen, that I'rom
Virginia, which I believe belongs to this species, appears to be alto-
gether absent.

The insects of this genus are unusually well provided with sensory
apparatus ; the spongy-pubescence at the bottom of the frontal and
pronotal foveae, the well-developed antennal club and maxillary palpi,
and the capitate setae of the inferior surface of the head, are a com-
bination of sense organs apparently rarely equaled in the larger insects
of the order.

18. E. leTiceps n. sp. — Form rather slender. Pubescence short, fine,
cinereoiis, somewhat conspicuous ; color throughout dark castaneous, ante-
rior portions of head, oral organs, legs and antennae pale reddisli-testaeeous.
Head small, very slightly longer than wide ; eyes large, rather prominent ;
genae obtusely rounded, not as long as the eye ; interocular surface very
convex, shining, impunctate, having two very small deeply impressed
spongy-pubescent foveae scarcely more widely separated than either from
the corresponding eye and on a line with tlie middle points of the latter ;
intermediate surface strongly and evenly convex ; from each fovea extends
anteriorly a nearly straight rather deeply impressed canaliculation, the two
being mutually feebly convergent and connected behind the feebly elevated
clypeal ridge by a short very feebly impressed anteriorly arcuate channel ;
supra-antennal tuberculations rounded and prominent ; antennae rather
slender, one-half longer than tlie head, club robust, ninth joint as long as
and very slightly wider than the eighth, slightly transverse, tenth scarcely
longer than the ninth, two-thirds wider, eleventh slightly wider than the
tenth, elongated, conoidal and acuminate, nearly as long as the four preced-
ing joints together. Prothorax widest at one-third its length from the apex
where it is slightly wider than the head and a little wider than long ; sides
thence very strongly convergent anteriorly, feebly sinuate and feebly con-
vergent posteriorly, evenly and distinctly arcuate; apex two-thirds as long
as the base and one-half as long as the greatest pronotal width, both equally
and feebly arcuate ; disk rather strongly convex, highly polished, most ex-
cessively feebly and minutely punctulate ; at two-thirds the length from the
apex there is a transverse narrow deep and sharply defined furrow connect-
ing a median and two lateral circular spongy-pubescent foveae, the median
one rather dilated laterally and connected with the basal edge of the pro-

116 NOKTII AMERICAN

notuin ])y a narrow strongly elevated carina. Elytra at base slightly wider
than the pronotum ; sides but slightly divergent posteriorly and distinctly
arcuate ; together transversely truncate behind ; disk slightly longer than
wide, as long as the head and pronotum together ; rather depressed, shining
and impunctate ; humeri small and prominent ; three punctures at the base
of each elytron distinct; sutural striae parallel, arcuate, deeply impressed,
other striae almost obsolete. Abdominal segments but very slightly narrower
than the elytra; sides parallel and feebly arcuate ; surface polished and im-
punctate ; first dorsal not carinate ; under surface of same very finely and
feebly punctulate. Legs long and slender ; prosternal coxal foveae distinct ;
anterior coxae strongly conical, small ; metasternum continued posteriorly
by a thin short transverse lamina which is densely fimbriate posteriorly with
short yellowish setae ; two terminal segments very short and transverse.
Length 0.9-1.1 mm.

Washington, District of Columbia, 1; Deer Park, Maryland, 1.

The terminal segment of the male has two parallel arcuate carinae.
Tiie above description is taken from the Washington female.

The species may be distinguished from rnjiceps by its larger size,
more robust form especially of the elytra and abdomen, by its nearly
piceous-black color, and especially by the shape of the pronotum
which is much more transverse, and in which the sides are not
parallel but distinctly convergent behind. The head is much shorter
and broader than in rvjiceps.

19. E. rilficeps Lee. — Sm. Misc. Coll. 1G7, p. 28. — Form slender ; color
of head, prothorax, abdomen, legs and antennae dark piceons-brown, elytra
slightly darker, blackish ; pubescence sparse, short and fine ; surface highly
polished. Head rather large ; front having two small circular pits, equi-
distant from each other and the posterior limits of the eyes, spongy at the
bottom and connected by an impressed furrow which is very strongly arcuate
anteriorly; antennae very short and robust, scarcely one-third longer than
the head, last joint large, as long as the five preceding joints together, coni-
cal, finely acuminate at tip, penultimate nearly three times as wide as long.
Prothorax equal in width to the head, very slightly wider than long ; anterior
and posterior margins arcuate, tlie former most strongly so ; anterior and
posterior angles obsolete, very broadly rounded ; sides parallel and nearly
straight ; disk impunctate, moderately convex, having in the middle near
the base two large circular spongy impressions separated by a distinct longi-
tudinal carina, also at each side just behind the middle an equally large
circular spongy impression. Elytra at base very slightly wider than the
head; sides very feebly divergent, feebly arcuate near the apices, one-fourth
longer than the width at V)ase ; together transversely truncate behind:
suture fully one-half longer than the pronotum ; disk impunctate, almost
glabrous ; sutural striae deep, feebly arcuate and close, each originating in
a densely pubescent puncture near the base and very close to the suture ;
each elytron also has two elongated impressions at the base, the outer ones
being much the stronger. Abdomen narrower than the elytra ; border

COLEOPTKRA. 117

strong ; surface j)olislie(l, inii)unctate ; first segment without dorsal earinae.
Legs slender, translucent ; tarsi short, basal half abruptly much more
robust than the apical joint ; claw minute. Length O.C-O.S mm.

New Orleans, 1 ; Taoi pa, Florida, 2 ; Columbus, Texas, 4; Detroit,
Michigan, 5.

The parallel sides of the protliorax and very small size will serve
to identify this species. The lateral impressions of the pronotum are
joined to the middle ones by what appear to be very narrow sharply
defined carinae, but these may be grooves, the optical appearance of
both being nearly the same.

To this form I have united E. integer Lee. (Proc. Am, Phil. Soc.
XVII, p. 386) which was described from a unique, and which is pre-
cisely similar to the southern forms; the specimen is in much better
preservation than the unique type of rujiceps, and the pubescence is
much more abundant ; it appears to be easily rubbed from the surface
of the elytra.

THESIIJIM n. gen.

The principal characters of this genus have been given in the
table ; the subsidiary and more minute ones can be readily discovered
from the descriptions of the two species given below, and which may
be distinguished as follows : —

Color reddish-brown ; median canalicular puncture of pronotum much
elongated 1, cavifrons.

Color piceous-black, elytra reddish ; median puncture of proimtum very
small, near the apex, and very sliglitly elongated 2. laticolle*

1. T. cavifrons (Lee.)— £•«. cm: Lee. N. Sp. Col. L 1863, p. 28.— Form
robust. Pubescence rather long, evenly distributed, coarse, very pale and
somewhat conspicuous ; color throughout dark reddish-brown, antennae and
legs but very slightly paler. Head rather small, broader than long ; eyes
large, coarsely granulated, moderately prominent, more convex behind ;
genae very small, nearly transverse, scarcely more than one-half as long as
the eyes and continuous in curvature with them ; frontal margin not one-
half as long as the width across the eyes ; interocular surface rather strongly
and abruptly elevated above the eyes, feebly convex above, highly polished
and impunctate, having at two-fifths the length from the base two very small
circular feebly impressed spongy-pubescent foveae, connected by a parabolic
channel shorter than the distance between them, and, in their vicinity, very
feeble but becoming just behind the frontal ridge very deeply impressed;
intermediate surface feebly and nearly evenly convex ; supra-antennal tuber-
culations strong, angulate externally, connected by the short transverse and
prominent frontal ridge ; labrum prominent, four times as wide as long,
nearly transversely truncate anteriorly, sides parallel and very strongly

118 NOKTH AMKRICAX

arcuate, constricted at the immediate base ; antennae robust, tenth joint more
than twice as long and nearly twice as wide as the ninth which is short and
twice as wide as long, eleventh slightly wider than the tenth, slightly longer
than wide, conoidal and acuminate ; last joint of the maxillary palpi longer
than the remaining joints together, robust, conoidal, twice as long as wide,
acuminate at tip. Prothorax widest slightly before the middle where it is
slightly wider than the head and nearly one-third wider than long, and
where the sides are parallel and feebly arcuate for nearly one-half the length,
thence abruptly and strongly convergent posteriorly and feebly sifiuate ;
edge finely denticulate throughout ; apex slightly more than one-half as long
as the pronotal width and four-fifths as long as tlie base ; disk broadly con-
vex, polished, and finely and sparsely jjunctulo-asperate, having near the
apex a deep median canaliculate puncture which becomes attenuated poste-
riorly terminating at the middle of the disk, also at one-third the length from
the base a very deeply impressed narrow transverse groove, terminating at
the sides in rather small deeply impressed spongy-pubescent foveae, and
dilated into a strong posteriorly attenuated impression in the middle ; base
with a minute impression at each side midway between the middle and the
basal angles, and also a small round puncture at each basal angle. Elytra
at base scarcely wider than the pronotum ; sides rather strongly divergent
posteriorly, strongly arcuate ; disk slightly shorter than wide, broadly con-
vex, polished, scarcely punctulate ; sutural striae fine, strong and very close,
lateral well-marked, ni^arly one-half as long as the elytra. Abdomen short
and broad, nearly as wide as the elytra; sides parallel and nearly straight ;
border narrow, inclined; surface broadly convex, polished, extremely finely
and remotely punctulate ; first three dorsal segments equal ; basal segments
not carinate at base. Legs short and slender. Length 0.8 mm.

New Orleans (Motscliulsky), 1.

Described tVoin Dr. LeConte's unique type. In the two species of
this genus the median carinae of" the prosternum and niesosternum
are both very narrow and well marked.

It is to be regretted tiiat Dr, LeC'onte's deseri[)tion of this. species
is so short and full of error as to be quite useless for any otlier pur-
pose than the mere attachment of a name. In the three lines con-
stituting the description proper, there are no characters given by
which it can be distinguished from most of the other species in this
[)art of the genus. In the few subjoined remarks the author states
that it is nearly related to Ea. dijflicUls: this must surely be a slip
of the pen as there are scarcely any otiier two species of the group
in ([uestion so widely different, eitiier in appearance or structural
characters.

2. T. laticolle n. sp. — Form robust. Pubescence rather short, coarse,
evenly distributed, very pale, scarcely conspicuous ; color of body piceous-
black ; elytra reddish-brown, transverse apical baud blackish, legs and

COLEOPTEHA. 119

antennae much paler, testaceous ; integuments highly polished and impunc-
tate. Head small, much wider than long; apical margin one-half as long
as the width across the eyes, the latter large, rather prominent and more
convex behind ; genae very short, strongly convergent posteriorly and
slightly more arcuate than the adjoining contour of the eye; interocular
surface elevated moderately above the eyes, nearly flat above, having at
nearly two-fifths the length from the base two small feebly impressed
spongy-pubescent foveae, connected by a parabolic channel which is very
strongly dilated and impressed anteriorly, and much shorter than the dis-
tance between them ; intermediate surface very broadly feebly and evenly
convex ; supra-antennal tuberculations strong, obtusely angulate exteriorly,
connected by the feebly arcuate transverse frontal ridge which is distinctly
depressed in the middle ; antennae nearly as long as the head and i>rothorax
together, rather slender, club long and strong, ninth joint nearly twice as
wide as long, short and small, but slightly longer than the preceding joints,
tenth much more than twice as long as the ninth and three-fourtliswidi-r,
trapezoidal in outline, sides divergent, eleventh scarcely wider than the
tenth, as long as wide, very obtuse at tip where it bears a crown of vary
dense cinereous setae. Prothorax more than one-third wider than long and
much wider than the head ; sides from the apical angles extremely widely
divergent and feebly sinuate for a short distance, thence nearly parallel and
feebly arcuate to a point slightly behind the middle, thence abruptly very
strongly convergent to the basal angles and i-ather strongly sinuate ; edge
anteriorly entire, posteriorly minutely and strongly undulate ; apex much
less than one-half as long as the pronotal width and scarcely two-thirds as
long as the base ; disk very broadly convex, having at one-sixth the length
from the apex a small deeply impi'essed median puncture which is slightly
elongated, and, at one-third the length from the base, a deep broadly dilated
l)osteriorly-angulate naked puncture, connected with the lateral foveae by
very narrow distinct but feebly impressed grooves ; the lateral foveae are
well within the edge of the pronotum, and are very small, exactly cii'cular,
spongy-i^ubescent at bottom and very deeply impressed ; basal margin having
two lateral punctures and a very feeble median tuberculate elevation. Elytra
at base equal in width to the pronotum ; sides rather strongly divergent
l>osteriorly and strongly arcuate ; disk broadly convex, slightly shorter than
wide ; sutural striae fine, strong, very close and exactly straight, each elytron
also has at base three short impressed striae which proceed obliquely from
the basal foveae. Abdomen very short and broad ; third segment as wide
as the elytra ; sides nearly parallel ; border wide and nearly flat ; surface
broadly convex ; basal segments not carinate. Legs short and very slender.
Under surface of the abdomen paler at tip. Length 1.0 mm.

Columbus, Texas, 4.

This very fine species is readily distinguished from the preceding
by its more transverse pronotum, which is also more acutely rounded
at the sides, and by its nearly black color, with paler elytra.

120 NORTH AMKKICAN

FALISCVS n. gen.

The uni<iue species of Faliscus was taken in very moderate number
by Mr. E. A. Schwarz at Trenton Falls, New York, The descrip-
tion of this form which follows, will at the same time serve to convey
a more minute knowledge of its generic characters.

1. F. 1>icanalis n. .sp. — Form robust. Pubescence rather fine, short,
evenly distributed, dense, very pale and somewhat conspicuous ; color of
body throughout rather dark piceous-brovvn, antennae and legs much paler,
piceo-Havate. Head rather small, much wider than long ; eyes large, promi-
nent, coarsely granulated, evenly convex ; genae extremely strongly conver-
gent, very feebly arcuate, scarcely more than one-half as long as the eye, not
at all prominent ; interocnlar surface moderately elevated above the eyes,
nearly flat above, highly polished and impunctate, having at a little more
than one-third the length from the base two small rather deeply impressed
circular foveae, mutually nearly twice as distant as either from the eye,
and apparently naked, also just behind the anterior angles of the front two
obli(jue narrow feebly impressed and clearly defined gi'ooves, which. are very
short and almost transverse, not meeting on the median line, but joined
posteriorly to the foveae by excessively feeble broadly impressed parallel
channels ; intermediate surface broader than long, nearly flat ; supra-
antennal tuberculations rather flat, each crossed by a narrow clearly defined
canaliculation, joined by the strongly arcuate very broadly convex frontal
ridge ; labrum small, scarcely twice as wide as long, broadly and extremely
feebly arcuate anteriorly, rounded at the sides and feebly constricted at
base; antennae slender, nearly two-thirds longer than the head, club very
long and slender, second joint longer than wide, slightly robust, third nar-
rower, longer than wide, four to six globular, seventh thicker than the sixth,
nearly globular, eighth nearly as thick as the seventh, one-third wider than
long, ninth one-half longer than the eighth, scarcely one-third wider than
long, transversely and very slightly cuueate, tenth scarcely as long as the
ninth, one-half w'ider than long, nearly rectangular in outline, eleventh very
slightly wider than the tenth, distinctly longer than wide, oval, slightly
acuminate at tip ; last joint of maxillary palpi rather long and slender ;
under surface of head having a large pad of erect sensitive setae. Prothorax
widest just before the middle where it is about one-sixth wider than long
and distinctly wider than the head ; sides broadly evenly and strongly
arcuate, straight toward the basal angles, very feebly sinuate for a very
short distance near the apex ; apex much less than one-half as long as the
pronotal width and two-thirds as long as the base ; lateral edges even ; disk
broadly convex, shining, very finely and rather sparsely punctulo-asperate,
having at one-sixth the length from the posterior margin a small deep longi-
tudinally oval punctiform impression, not spong\'-pubescent and produced
forward through the basal half of the pronotum as a feebly impressed canali-
culation, which gradually becomes obsolete ; lateral foveae wanting, but in
their i)lace two longitudinal broadly impressed nearly straight canalicular
I'liaunels, crossing the edge near the basal and apical angles, not connected

COLEOPTERA. Til

in any manner with the median puncture. Elytra at base very slightly
wider than the pronotum ; sides rather strongly divergent posteriorly and
strongly arcuate ; disk broadly convex, minutely and rather closely punc-
tulo-asperate, shining, about as long as wide ; sutural striae fine, rather
close, feebly arcuate, lateral deeply and narrowly impressed, one-third as
long as the elytra. Abdomen very slightly shorter and narrower than the
elytra ; sides parallel and straight ; border narrow and inclined ; surface
broadly and rather strongly convex, polished, finely and rather sparsely
punctulo-asperate ; first three dorsal segments equal ; first with two distant
very widely divergent short and distinct basal carinae ; second without
visible carinae. Legs long ; femora rather robust ; tibiae slender. Pro-
sternum very short. Length 1.1 mm.

Trenton Falls, New York, 3.

Described from the male. In the female the eyes are fully de-
veloped and the legs are all slender throughout. In the male the
middle femora are swollen much more than the anterior and posterior ;
they are flattened and somewhat lunate, having on the inner narrow
edge a very small oblique spine. The corresponding tibiae are very
strongly tootlied interioi-ly, the tooth fitting, wlien the leg is closed,
into a concavity in tlie femur. The remaining femora and tibiae are
unarmed. The tendency to enlargement of the middle femur alone,
is also to be seen in a rudimentary stage in several males of P^uplectus.

IVICOTHEIJS n. gen.

The eyes in the males of this genus are rather well developed, but
in the females they are very rudimentary ; the genus offers many
differences besides those indicated in the table, which are given in
tlie following description of the single species.

1. W. ti1>ialis n. sp. — Form moderately robust, somewhat depressed.
Pubescence rather short, coarse, dense and conspicuous, pale fulvo-cinere-
ous ; color throughout pale rufo-testaceous, legs just visibly paler. Head
moderate in size, nearly as long as wide; eyes small, very convex and ex-
tremely coarsely granulate ; genae strongly convergent, feebly arcuate,
slightly longer than the eye ; interocular surface moderately elevated above
the eyes, very feebly convex above, shining, impunctate, having at nearly
two-fifths the length from the base two round somewhat feebly impressed
spongy-pubescent foveae, mutually two-thirds more distant than either from
the eye, connected by an anterior feebly impressed acutely parabolic channel
about as long as their distance asunder ; intermediate surface rather strongly
convex ; supra-antennal tubercnlations large, angulate externally, having
just behind their apical limits a small flat area which i^ strongly and con-
fluently punctate, connected by the transverse frontal ridge which almost
disappears in the middle, and which is much less than one-half as long as
the width across the eyes ; labrum very transverse, truncate anteriorly ;

122 NORTH AMERICAN

antennae as long as the head and prothorax together, rather robust, club
very prominent, second joint slightly longer than wide, oval, joints three
to ten more or less transverse, the first nearly as long as wide, eighth very
short, twice as wide as long, ninth much longer, slightly more than twice as
wide as long, slightly shorter than the tenth which is also more than twice
as wide as long, eleventh much wider than the tenth, nearly globnlar, finely
and abruptly acuminate at tip ; maxillary palpi short and very robust, last
joint obli(|Ucly and inwardly produced at tip as a finely acuminate prolonga-
tion. Prothorax widest at one-tiiird its length from the apex where it is
scarcely wider than the head and ahont as wide as long ; sides broadly
rounded, very feebly convergent and straight posteriorly wiiere they are very
minutely and obscurely granulate, roundly arcuate anteriorly; apex trans-
verse and straight, slightly more than one-half as long as the pronotal width,
and slightly more thaii two- thirds as long as the base; disk polisiied and
impunctale, rather strongly convex, having in the middle a narrov,- acutely
impressed canaliculation beginning very near the apex and extending poste-
riorly for more than one-half the total length but scarcely entering the
transverse impression, the latter at less than one-fourth the length from the
base, is very broadly and strongly impressed, with the surface thence to the
basal edge rough and asperate with a narrow but distinct medial carina, and
becoming attenuated laterally where it coalesces with the lateral rounded
ileeply impressed circular spongy-pubescent foveae at more than one-third
the length from the base. Elytra at base scarcely wider than the pronotum ;
sides rather strongly divergent posteriorly and strongly arcuate ; surface
feebly convex ; disk shining, sparsely punctulo-asperate, scarcely as long as
wide, and about one-fourth longer than the jtronotum ; sutural striae very
fine but distinct, rather distant and arcuate ; each elytron has two large
basal foveae; lateral striae very broadly impressed, feeble and rather short.
Abdomen short and broad, nearly as wide as the elytra and rather shorter ;
sides parallel and feebly arcuate ; border rather narrow and inclined ; sur-
face broadly and rather feebly convex, shining, very minutely punctulo-
asperate ; first three dorsal segments equal in lengtli ; first two each with
two divergent distinct basal carinae, those of the second much shorter than
those of the first. Legs long and slender ; tibiae gradually swollen toward
tips. Prosternum very long, carinate throughout its extent. Length 1.3 mm.

District of Columbia, 3; Lee County, Vii-ginia, 1.

The (lescription is taken from the male ; the female is quite dif-
ferent in form, the abdomen being much longer and the carinae of
the second segment becoming almost obsolete ; the basal foveae of the
elytra are strong(;r ; the prothorax is slightly longer than wide and
the sides are feebly sinuate toward the base ; the head is much smaller
than in the male. Tlie most marked ilitference is, however, in the
eyes which are in the female very rudimentary, consisting of but three
rather large contiguous facets in a triangle on the extreme tips of the
lateral angulations of the head. The sexual characters at the poste-
rior portions of the body are, as might be expected, not striking.

COLEOPTERA. 123

Ei>IPLE>'OTA Casey.

It lias been declared by M. Fauvel tluit the genera Polystoma
Steph. and Em|)lenota are identical. Throiigli the kindness of M.
Aug. Salle, I have been enabled to submit the following comparisons,
the type of Polystonia being the species algarum Fauv.: —

In Polystoma the intercoxal process of the mesosternum is rather wide and
the sides for a long distance before the tip are very gradually convergent, so
that they are nearly parallel ; the tip is squarely truncate. The terminal
joint of the maxillary palpi is very thin, much longer than wide, and is
affixed obliquely to the fourth. The pronotal epipleurae are very strongly
inllexed and abruptly wider in the middle, rather rapidly narrowing ante-
riorly and posteriorly, the inferior edge being very strongly arcuate in the
middle.

In Emplenota the intercoxal process of the mesosternum is in the form of
an angle with slightly incurvate sides, or exactly in the form of a long slender
cusp, the sides being rapidly and almost evenly convergent to the very apex
which is acute and not at all truncate. The terminal joint of tlie maxillary
palpi is very small, as wide as long, not affixed obliquely to the fourth of
which it is properly but a minute terminal process. The pronotal epijjleurae
are less strongly intlexed and much more nearly uniform in width throughout.

If the American species of Aleochara are typical representatives
of that genus, both the above should, in the opinion of the writer, be
considered as distinct genera.

QUEDIUS Steph.

Q. silvicola n. sp. — Form rather robust, somewhat depressed. Head
and elytra piceous-black, prothorax very dark piceous, abdomen very slightly
paler, piceous ; integuments of the latter somewhat opalescent. Head mode-
rate, oval, feebly constricted at base, nearly one-third longer than wide ;
interocular surface broadly convex, without median punctures, liighly
polished, extremely minutely and transversely strigose, strigae wavy ;
having a small setigerous puncture on the extreme frontal edge near the
anterior angles of the epistoma, within and near the bases of the antennae,
also on each side a small puncture above and near the base of the antenna,
another near the upper border of the eye at its anterior third, also three
others not in a straight line on the occiput above and far behind the eye,
another directly behind the middle of the eye and two-thirds the length of the
latter from it, and finally two large and several very small scattered punctures
directly below the eye and along the border of the strongly elevated sub-
lateral carina ; labrum strongly transverse, very deeply and strongly bilobed ;
maxillary palpi very long and slender, last joint thin, nearly one-third
longer than the third ; antennae rufous at base fuscous toward tip, slightly
more than one-third longer than the head, basal joint as long as tlie next
two together, second about two-thirds as long as the third and as long as the

124 NORTH AMERICAN

fourth, joints four to ten very slightly increasing in width, the former slightly
longt-r than wide, the latter about as wide as long, eleventh moderate, slightly
elongate, and obliquely acuminate at tip. Prothorax scarcely wider than
long, but very slightly longer than the head ; apex transverse and nearly
straight ; base from the middle of the sides almost semicircularly rounded,
sides rather feebly convergent thence to the apical angles which are slightly
obtuse and slightly rounded ; disk moderately convex, higlily polished, ex-
cessively finely strigose, having on each side three small discal punctures in
the apical half and not in a straight line, also three near the ajiical margin
laterally, and one isolated about twice as far from the apex as from the
lateral edge and rather near the latter, also about seven minute lateral
marginal punctures, one slightly larger and more distant from the edge near
the isolated one, and three basal, two of which last form a lateral pair ; the
entire disk is extremely finely margined along the sides and base. Scutellum
highly polished, not punctate. Elytra slightly narrower than the pronotum :
sides parallel, and almost straight ; conjointly from the base of the pronotum
very slightly wider than long ; disk feebly convex, broadly, somewhat angu-
larly and rather strongly emarginate behind, shorter than the pronotum,
highly polished but minutely undulated, finely sparsely and very evenly
punctate, each puncture bearing a rather long coarse pale seta. Abdomen
at base about as wide as th{; elytra; sides rather convergent behind and
nearly straight ; surface moderately convex, sparsely and coarsely pubes-
cent, sparsely evenly and finely punctate, excessively finely but strongly
and transversely strigose ; under surface almost identically the same as the
upper. Legs moderate, clear rufo-testaceous ; posterior tibiae rather coarsely
and sparsely pubescent, and on all sides finely and very sparsely spinulose ;
tarsi hairy above ; first four joints of the posterior decreasing very uniformly
and rather gradually in length, slender ; anterior tarsi rather strongly
dilated. Length S.O mm.

Fail-mount Park, Philadelphia, 1.

Tlie type above described is probably a female ; the sixth segment
of tiie abdomen is broadly truncate and arcuate behind. The strigae
of the abdomen are finer but more strongly marked than those of the
anterior portions of the body, and form a beautiful and striking
character. I do not Hiid any description wliicli will satisfy the type,
and sliould place it immediately alter peregrinns in Dr. Horn's tabu-
lar arrangement of (he genus. The eyes are slightly oblique, large
and very regularly elliptical ; the punctures of the abdomen and
elytra are about equally sparse, those of the latter being much finer.

The strigae are entirely invisible with a iiand lens of about one-
ludf incli focal lengtli. Tlie species altiiougii having an elongate
hiad is distinguishable at once from peregrinns by its more robust
form, and much larger eyes wliich are regularly oval anteriorly and
not truncate as in the latter.

COLEOPTERA. 125

BELONUCIIUS Nord.

B. moqilillUS n. sp. — Form rather slender, depressed. Head and
prothorax black, mandibles fuscous toward tips ; antennae dark fuscous,
piceous-black at base ; elytra and abdomen rufous, last two segments above
and beneath black ; pubescence of elytra and abdomen sparse, rather fine,
pale, not conspicuous, that of the head and prothorax in the form of very
sparse coarse erect setae. Head small, slightly longer than wide ; eyes
elongate, oval, not at all prominent, at more than their own length from
the base ; sides behind them feebly convergent and nearly straight, then
strongly and broadly rounded behind to the neck ; interocular surface feebly
convex, shining, extremely minutely strigato-rugulose, having two setiger-
ous punctures near the middle on a line through the middle of the eyes, and
two or three just above each eye, also a very feebly impressed median canali-
culation becoming stronger toward the labrum ; the latter very short and
broad, strongly bilobed, each lobe broadly rounded anteriorly and bearing
two very long and several small setae ; epistoma broadly and feebly sinuate
anteriorly ; mandibles long and prominent, nearly straight externally toward
base, arcuate at the apex ; antennae two-thirds longer than the width of
head, outer joints gradually and somewhat feebly incrassate and covered
very densely with extremely short fulvous pubescence and coarse sparse
erect setae, basal joint slender, four-lifths longer than the second which is
more than twice as long as wide, second and third equal, strongly clavate,
fourth very short, very slightly longer than wide, tenth scarcely longer than
the fourth, about one-third wider than long, eleventh obliquely produced at
tip ; maxillary palpi very slender, piceous-black toward base, pale reddish-
testaceous toward tip, fourth joint very slender, one-half longer than the
third ; under surface polished, excessively sparsely and minutely punctu-
late. Prothorax scarcely narrower than the head, just visibly longer than
wide ; sides nearly parallel, feebly arcuate ; base and basal angles broadly
evenly and continuously rounded ; apical angles inflexed, rounded ; apex
broadly and feebly arcuate ; disk moderately convex, polished, with two
straight medial rows of five punctures not attaining the base, and, on each
side, an exterior very irregular row of three or four punctures, also three or
four along the edge at each basal angle. Elytra at base distinctly wider
than the pronotum ; sides slightly divergent posteriorly and feebly arcuate ;
together broadly angularly and distinctly emarginate behind ; disk slightly
wider than long, shining, rather finely evenly and sparsely punctate. Abdo-
men diminishing but very slightly in width posteriorly ; border strongly
inclined, rather thin and very strong ; surface feebly and sparsely punctate ;
under surface more strongly so, especially along the bases of the basal seg-
ments where the punctures are abruptly large, deeply impressed and close.
Legs rather long ; anterior coxae extremely large, extremely highly polished^
glabrous except near the tips, almost as long as the femora ; the latter are
slender and armed along the inner edge with a short row of erect stout black
spines just beyond the middle ; corresponding tibiae slender, armed at tip
with two strong very nearly equal spines and many shorter and more slender
spinules ; corresponding tarsi not dilated ; first joint of the posterior tarsi
Cont. Part II. 5 Januaky, 1885.

126 NORTH AMERICAN

much shorter than the last ; middle coxae widely separated by the meso-
sternum which has between them a broadly Innate area abruptly declivous
along its posterior arcnate edge and feebly produced in the middle, bearing
on its face a transverse arcuate row of setae.

Male. — Sixth ventral segment broadly and feebly sinuate at tip, sinus
feeble, evenly rounded, about ten times as wide as deep.

Female. — Prothorax slightly wider than the head ; sixth ventral segment
very broadly and evenly rounded behind.

Length 7.5-8.0 mm.

Arizona (IMorrison), 2.

Tlie description is drawn from the male ; the species bears a great
resemblance to Philonthus or Actobius, but appears to me to belong
to Belonuchus on account of the spines along the inner edge of the
anterior femora.

XAIVTHOLINUS Serv.

X. f IICOSIIS n. sp. — Form very slender ; pubescence pale, short, very
sparse, erect and setiform ; head black above and beneath, oral organs and
antennae dark rufous ; pronotum pale reddish-testaceous ; elytra very dark
testaceo-piceous ; abdomen above darker than the elytra, very dark piceous-
brown, beneath slightly paler. Head very long and narrow, one-half longer
than wide, sides nearly parallel, very feebly swollen behind the eyes ; basal
angles rather narrowly rounded ; base transverse ; eyes very small, circular,
not prominent, nearly touching the base of the mandibles, nearly three times
their length from the basal angles ; interocular surface strongly and cyliu-
drically convex, polished, broadly impnnctate along the middle, and narrowly
impunctate in a slightly oblique line from the eyes to the basal angles on
the sides, elsewhere above coarsely and rather loosely punctate, punctures
strongly elongate ; beneath more finely aud remotely punctate, punctures
nearly round ; fourth joint of the maxillary palpi much longer than the third,
third finely acuminate, swollen slightly toward base ; antennae scarcely
longer than the head, basal joint distinctly longer than the next four
together, more than four times as long as wide, rather strongly arcuate
downward, second slightly longer than wide and slightly narrower than the
first, third and fourth sub-globular, slightly narrower than the second, joints
fivi! to ten increasing in width, nearly equal in length, the former very
slightly wider than long, the latter nearly twice as wide as long, eleventh
as wide as the tenth, slightly longer than wide, very obtusely conoidal, joints
one to three glabrous, coarsely and sparsely setose, remainder very finely
and densely pubescent, pubescence very short ; neck narrow, swollen. Pro-
thorax about equal in width to the head, shorter than the same, about one-
third longer than wide ; sides very feebly convergent posteriorly and very
feebly arcuate from above, sinuate laterally ; apex sligiitly longer than the
base, broadly triangular; apex truncate at the junction of the neck, base
broadly arcuate ; basal angles rather broadly rounded, apical less broadly
so ; disk polished, having a very irregular line of six punctures exclusive of
the minute basal one, and a lateral discal row of four near the middle ; very

COLEOPTERA. 127

strongly convex and very strongly declivous toward the apical angles.
Elytra at base scarcely as wide as the pronotum ; sides rather feebly diver-
gent and almost straight ; disk rather depressed, one-fourth longer than
wide and very slightly longer than the pronotum, polished, very finely
feebly and sparsely punctate, punctures aggregated near the suture, and
having a distinctly linear arrangement near the flanks, middle portions
impunctate. Abdomen at base very slightly narrower than the elytra ;
sides nearly parallel and very slightly arcuate ; border narrow and nearly
vertical ; surface sub-cylindrically convex, polished, just visibly reticulate,
sparsely very minutely and evenly punctulate. Legs rather slender, dark
rufous; anterior tarsi but very slightly swollen. Length 3.9 mm.

Cape May, New Jersey, 1.

The frontal grooves are long and well developed ; the under surface
of the head is coarsely rather feebly and obliquely strigose ; the
integument of the pronotum is so thin and transparent tiiat the
complicated system of muscular attachments can be most clearly
studied thi-ough it. I am at a loss to place this species in Dr.
LeConte's table, but there is a probability of its coming naturally
after emmesus ; it is the smallest of the genus which has been de-
scribed from the United States, being somewhat shorter tlian nanus
Lee.

There is a form mentioned by Dr. LeConte (Trans. Am. Ent. Soc.
1880, p. 173), which is fusciceps (Fauvel i. litt.), and which he refers
to emmesus as a smaller and more slender race. I do not tliink the
present species can be the one referred to as fusciceps, as I cannot
conceive of the association oi' emmesus sind fucosus in any way; they
differ in almost every character, and the merest glance will serve to
distinguisii them ; one point deserves special notice besides the very
much more flattened form of emmesus, it is that the gular sutures
meet at one-fourth the length of the post-mental portion of the head
from the posterior margin of the same in the latter, while in fucosus
they meet before the middle of this area ; the surface in question is
strongly and closely punctate and perfectly smooth in emmesus, and
is strigose, and rather feebly and very sparsely punctate in fucostis.-

CRYPTOBIUM Mann.

C. capito n. sp. — Form robust, rather depressed. Color throughout
dark brownish-red ; head slightly more castaneous and blackish anteriorly;
integuments somewhat translucent ; legs much paler and more llavate ;
antennae dark rufo-testaceous, palpi much paler ; pubescence sparse, coarse
and setiform on the head and pronotum, more abundant at the sides, more
dense finer and evenly distributed on the elytra, very dense long fine and
conspicuous on the abdomen, plumbeous in color. Head large and con-

128 NORTH AMERICAN

spicnous, mucli longer thaiiMide; sides behind the eyes xiarallel and very
strongly arcuate ; at a distance behind the eyes equal to the length of tlie
latter it is distinctly widest ; sides convergent slightly toward the neck which
is almost as broad as the pronotum ; eyes rather small, slightly prominent,
in great part visible from above, oval, evenly rounded anteriorly ; inter-
ocular surface depressed, flat anteriorly, highly polished, coarsely evenly
and rather densely punctate ; punctures round, sub-variolate, almost as
wide as the interspaces ; between the antennae there is a large area having
only a very few widely scattered punctures, with very feeble punctulations
in the interspaces ; antennae very long and slender, one-third longer than
the head, basal joint very long, slender, slightly enlarged toward tip, feebly
sigmoid and longer than the next four together, second shorter than the
third, as long as the fourth, joints eight to eleven decreasing slightly in
length and increasing in width, the former about three-fourths longer than
wide, strongly narrowed toward base, the latter oval, one-third longer than
wide ; maxillary palpi long, second joint slender, longer than the third,
strongly arcuate, third conical, rather slender, narrowed toward base, fourth
conical, nearly as broad at base as the tip of the third, acute at tip, two-fifths
as long as the third ; labial palpi very small and slender, last joint fine and
acicular ; under surface iinely and confusedly rugulose, finely rather sparsely
and feebly punctulate, slightly swollen along the gular sutures; mandibles
very long, tapering and acute. Prothorax distinctly shorter than the head,
narrowed scarcely perceptibly from apex to base ; sides evenly and mode-
rately arcuate ; apical angles narrowly rounded, basal rather broadly so ;
apex and base nearly transversely truncate, extremely narrowly margined ;
disk five-sixths as wide as the head, scarcely one-fifth longer than wide,
moderately convex, highly polished, finely feebly sparsely and irregularly
punctate, more serially so near the broad median impunctate area. Elytra
at base as wide as the pronotum, slightly wider than thi; base of the latter ;
sides feebly divergent posteriorly and nearly straight ; together broadly
roundly and strongly emarginate behind ; disk nearly flat, shining, slightly
longer than wide and very slightly longer than the pronotum, coarsely
strongly evenly and densely punctate. Abdomen at base as wide as the
contiguous elytra ; sides moderately arcuate ; border extremely strong,
nearly erect at base, rapidly becoming almost obsolete at the apex of the
fifth segment ; surface feebly convex, very moderately shining, finely evenly
and rather densely punctate, transversely very minutely and rather strongly
strigate. Legs slender ; femora long and slender, strongly compressed,
narrow ; first joint of the posterior tarsi as long as the next two together.
Prosternum very strongly and acutely carinate posteriorly. Under surface
much paler than the upper.

Mule. — Fifth ventral segment broadly and extremely feebly emarginate
behind ; sixth deeply incised at apex, incisure as deep as wide, sides sinuate
and arcuate just before the anterior angle which is very acutely rounded,
apical angles slightly rounded.

FciiKile. — Un k now n .

Length 9.0 mm.

JtMikinlown, near Pliil;ul('l|tliiii, 1.

COLEOPTERA. 129

This very fine species should evidently be placed immediately after
tumiditm in Dr. LeConte's table of the genus Cryptobium. The very
large elongated head, distinctly widest behind the eyes, very long
slender antennae and pale coloi", separate it from other forms in this
neighborhood.

C. COllvergens n. sp. — Form rather slender, rather feebly convex ;
sides parallel ; head and prothorax piceous-black ; elytra dark rufo-piceous ;
abdomen nearly piceous-black, slightly paler and more rufous toward tip ;
pubescence rather long, coarse, erect and bristling over the entire body,
somewhat abundant and nearly evenly distributed, pale fulvous. Head
moderate in size, much longer than wide; eyes rather small but convex and
prominent; sides continuous in outline with them behind, distinctly conver-
gent toward the neck which is not two-thirds as wide as the width at the
eyes, nearly straight toward the eyes, more arcuate behind ; just in advance
of the eyes the head is scarcely three-fourths as wide as across the latter,
forming a short very transverse epistoma the sides of which to the antennae
are feebly convergent and straight, transversely truncate anteriorly ; supra-
antennal tuberculations very strong and conspicuous, front between tliem
sparsely and irregularly punctate, shining, minutely granulose ; occiput
coarsely and evenly punctate, moderately convex, polished, minutely and
feebly strigato-retieulate ; punctures round, separated by less than twice
their widths in the middle, becoming much more dense finer and very con-
fused behind the eyes where there is on each side two large areolate punc-
tures bearing long erect setae ; between them extending longitudinally from
the eye there is a broadly rounded feeble ridge ; under surface miniitely ^-
ticulated, rather finely sparsely and evenly punctate, not elevated along tlie
gular suture ; maxillary palpi rather long and slender, second joint slender,
slightly ilattened and feebly bent, equal in length to the third which is
slender, conical, feebly narrowed toward base, truncate at tip, nearly four
times as long as wide, fourth joint very small, subulate, conical, much nar-
rower than the apex of the third and received partially within it, but slightly
more than one-fourth as long as the latter; antennae rather slender, very
feebly incrassate, longer than the head, very dark rufous, basal joint feebly
sigmoid, scarcely longer than the next three together, second much shorter
than the third and very slightly longer than the fourth, the latter scarcely
more than two-thirds as long as the third, first two joints glabrous and
sparsely setose, the remainder very finely pubescent throughout and sparsely
setose. Pro'horax very small, scarcely more than three-fourths as long or
wide as the head ; sides parallel and feebly arcuate ; apical angles acutely
rounded, basal rather strongly and evenly so ; base broadly and very feebly
arcuate; apex broadly sinuate ; disk broadly convex, about one-fourth longer
than wide, rather coarsely closely and unevenly punctate ; broad median
line impunotate, punctures more sparse toward the base. Elytra at base
distinctly wider than the pronotum, slightly narrower than the head ; sides
parallel and nearly straight ; together broadly roundly and moderately
sinuate behind ; apical angles evenly rounded ; disk very broadly and
feebly convex, distinctly longer than the pronotum, more than one-fourth

130 NORTH AMERICAN

longer tlian wide, shining, moderately coarsely very evenly and rather
densely punctate ; punctures round, impressed, generally distant by twice
their widths. Abdomen at base just visibly narrower than the contiguous
elytra ; sides parallel and very feebly arcuate on the first four segments ;
border nearly equal throughout the same segments, very strong, moderately
deep ; surface feebly convex, finely very strongly evenly and rather sparsely
punctato-asperate and transversely finely and strongly strigate, shining ;
setae at the sides and tip very long, strong and bristling. Legs long and
slender ; femora very slender, pale flavate, remainder pale rufo-testaceous,
first joint of the posterior tarsi much shorter than the next two together, first
four decreasing uniformly in length. Body not paler beneath. Prosternum
obtusely angulate behind, angle not at all rounded and very strongly
elevated, elevated portion narrowly and feebly carinate.

Male. — Unknown.

Female. — Second and third ventral segments each with a very short trans-
verse posteriorly arcuate eroded fold in the middle of the disk, about one-
sixth as long as the width of the segments, and bearing a very dense line
of erect stiff setae ; sixth segment very broadly rounded belaud, transverse
in the middle.

Length 8.0 mm.

Near Camden, New Jersey, 1.

Under the supposition that the narrowing of the head behind the
eyes is not a constant character, which however I have no reason to
suspect, the above species would fall naturally immediately after
despecfiim in the table referred to above ; if, however, we consider
this as a rigid and constant character, it can find no |)lace under any
of till' subdivisions proposed there, as, with crlhratttm and serpentinum
it appears to possess very few cliaracters in common, except the one
indicated.

The type specimen was taken on the sandy shores of the Delaware
River about six miles from Philadelphia.

C. parallc'llllll u. sp. — Form slender, depressed ; sides parallel. Color
throughout i)ale reddish-brown, iu)t paler beneath ; femora much paler,
llavate ; antennae testaceous, basal joint slightly more flavate and the tip
more fulvous and paler from an excessively fine short and dense pubescence;
head and prothorax less opaque and more purely rufous than the remaiiuier ;
sparsely and coarsely pubescent, elytra and abdomen more densely and con-
spicuously so. Head two-thirds longer than wide; sides parallel behind the
eyes and almost straight posteriorly, broadly rounded to the neck whicli is
three-fifths as wide as the head ; eyes rather small, very slightly convex ;
epistomal regions before them two-thirds as wide as the head, sides parallel
and straight, truncate anteriorly, angles rounded ; antennal tuberculations
broad and ver^' prominent ; surface between them feebly declivous and
slightly more strongly impressed near them, slightly more sparsely and
finely i)unctate ; interocular surface and occiput rather coarsely strongly

COLEOPTERA. 131

evenly and sparsely punctate ; punctures circular, sub-variolate, strong,
generally separated by about three times their widths in the middle, sliglitly
closer toward the sides where the surface becomes slightly rugulose : imme-
diately behind the eye in a line parallel with its rather truncate and oblique
hind margin, and at a distance from it more than equal to its length, there
are two large round crater-like setigerous punctures, very distinct from the
mass of punctures about them ; under surface rugulose, shining, sparsely
and finely punctate ; maxillary palpi long, all the joints slightly flattened,
second scarcely as long as the third, arcuate, gradually widening toward tip
which is obliquely truncate, third conical, gradually narrowed toward base,
truncate at tip, three times as long as wide, fourth very small, flattened,
conical, oblique, two-thirds as wide at base as the tip of the third and nearly
as wide as long, not one-fourth as long as the third joint ; inner tooth of
mandibles very long, arcuate, strong ; antennae much longer than the head,
slender, basal joint much the most robust, as long as the next three together,
second two-thirds as long as the third, as long as the fourth, joints four to
eight increasing slightly in length, eight to ten decreasing rapidly in length,
eleventh very slightly longer than the tenth. Prothorax two-thirds as long
and nearly five-sixths as wide as the head ; sides feebly convergent from
apex to base and feebly arcuate ; apex broadly and very feebly emarginate ;
angles slightly acute and very slightly rounded ; base transverse, angles
broadly rounded ; disk polished, one-sixth longer than wide, rather coarsely
closely and irregularly punctate, more irregularly and sparsely so laterally;
median impunctate area even. Elytra very long, one-third longer than the
pronotum, about as wide as the head ; sides nearly parallel, very feebly
arcuate near the middle ; together broadly roundly and rather strongly
sinuate behind ; angles broadly rounded ; disk nearly one-third longer than
wide, depressed, extremely highly polished, coarsely evenly and densely
punctate, interspaces one and one-half times as wide as the punctures, con-
vex. Abdomen very slightly narrower than the elytra ; sides parallel and
straight ; border very strong, deejj, strongly inclined, equal throughout the
first four segments ; surface finely rather sparsely and evenly punctate, also
coarsely and distinctly strigato-reticulate, shining ; under surface like the
upper, bristling with long erect black setae toward the tip. Legs long and
slender ; first joint of the posterior tarsi one-third longer than the second,
slightly shorter than the last ; femora much paler than the tibiae and tarsi.
Gular support of the mentum and scutellum each having two small setigerous
punctures in the middle of the disk and transversely disposed.

Female. — Second ventral segment having just behind the middle a short
transverse and feeble fold, one-sixth as long as the width of the segment,
straight and densely fimbriate with slender black setae ; third segment
having just before the middle a short transverse and very feeble fold similar
to the first, except that it is not one-half as long ; sixth segment very broadly
rounded behind.

Length 9.5 mm.

Pennsylvania, near Philadelphia, 1.

The two areolate punctures behind the eyes appear to characterize
the genus or a large portion of it. I do not see any group made by

132 NORTH AMERICAN

Dr. LeConte in his table which can i-eceive this species, on account
of the structure of the fourth joint of the niaxilhiry palpi; it can,
however, for the present be placed after higuhre.

C proxiltmm n. sp. — Form moderately slender, depressed. Color
throughout lathor dark brownisli-red ; head very slightly darker, castane-
ous ; femora paler, yellowish-testaceous ; pubescence of head and pronotum
very coarse, setiform, sparse, erect, that of elytra and abdomen slightly more
dense, finer, erect, fulvous. Head much longer than wide ; sides behind
the eyes parallel and very slightly arcuate, broadly rounded behind ; base
broadly and very feebly emarginate ; eyes small, truncate behind, slightly
prominent ; width across the eyes scarcely as great as at their own length
behind them ; epistomal region adjoining them anteriorly about two-thirds
as wide as the head, sides parallel and straight, broadly truncate and very
feebly sinuate anteriorly, angles rounded ; antennal tuberculations strongly
marked, intermediate surface feebly declivous, slightly more strongly im-
pressed near them and slightly more sparsely punctate than the occiput ; the
latter broadly convex, polished, coarsely deeply evenly sparsely and sub-
variolately punctate, punctures round, separated in the middle by about two
and one-half times their own widths, at the sides smaller and slightly closer;
large punctures at one and one-half times the length of the eye l)ehind the
latter, the upper one the larger and elongated ; under surface finely and
sparsely punctate, polished, finely rugulose ; maxillary palpi long, second
joint very feebly arcuate, distinctly shorter than the third which is conical,
rather abruptly narrowed near the base, about two and one-half times as
long as wide, fourth flattened, olilique, conical, very slightly longer than
wide at base, two-thirds as wide as the third and one-fourth as long, color
pale ; mandibles nearly black ; antennae much longer than the head,
slender, pubescence toward tip rather coarse, very close and dense, bright
fulvous, basal joint as long as the next three together, second nearly three-
fourths as long as the third, equal to the fourth, joints four to eight increas-
ing very slightly in length, the latter conical, twice as long as wide, ninth
longer than th<» tenth, equal to the last, the latter very slightly longer than
wide. Prothorax much shorter and \n\i slightly narrower than the head ;
sides about parallel, rather strongly arcuate ; apex slightly longer than the
base, broadly and very feebly arcuate, angles obtuse, narrowly rounded, base
transverse in the middle, angU's rather broadly rounded ; disk extremely
highly polished, scarcely one-sixth longer than wide, l)roadly convex, coarsely
and rather densely punctate, i)unctures roundly impressed, without trace of
serial arrangement; broad mt>dian area, and on each side a narrower oblique
line beginning near the apical angles and continuing to the base, iiii]>uuc-
tate ; two setigerous punctures of scutelluni very widely separated. Elytra
at base as wide as the head ; sides parallel and very feebly arcuate ; together
broadly and rather strongly sinuate behind; apical angles rounded; disk
nearly one-third longer than the pronotum, depressed, flat, rather coarsely
evenly and very closely punctate, very highly polished. Abdomen about
as wide as the elytra; sides parallel and straight; border very strong on
the llrst four segments, slightly stronger toward base ; surface polished.

COLEOPTERA. 133

minutely strigcato-reticulate, finoly evenly and rather closely punctate, more
sjiarsely so toward tip. Legs long and slender; first joint of the posterior
tarsi nearly one-half longer than the second, very much sliorter than the
last. Prosternum very strongly and acutely carinate between the coxae.

Female. — Second ventral segment with a tmnsverse feebly spongy fold just
behind the middle, nearly straight and one-sixth as long as tlie segmental
width, densely fimbriate with fine black setae ; third segment having just
before the middle a similar fold, or more properly, narrow eroded and black-
ish-granulose area, which is slightly shorter than that of the second segment ;
sixth segment truncate at tip, truncation extremely feebly sinuate in the
middle, angles rounded.

Length 10.0 mm.

Willets Point, Long Island, 2.

Each dor.sal segment bears near the apex and just within the
border a long stiff erect black seta. This species should probably
follow the preceding in the catalogue ; it is distinguishable from it by
its sexual characters, and the more slender form, paler color and more
parallel and straight sides of the head in parallelum. Between the
eyes there is a narrow transverse area which is almost free from
punctures.

The species of Cryptobium must be extremely numerous in the
New World ; as far as my own experience will allow me to judge they
are never gregarious and always found singly, and are comparatively
seldom taken. Of the five species in my own collection one has been
described and four are now described for the first time, if the char-
acters given by Dr. LeConte are constant and accurate. Another
specimen from Willets Point, which has been unfortunately destroyed,
evidently represented a species excessively closely allied \o proximum,
in which the fold of the second segment was similar, but which was
entirely devoid of any modification of the third segment. The speci-
men was so very similar to the type of proximum, only differing in
the slightly greater convergence of the sides of the pronotum toward
the base, that I am almost inclined to doubt the invariability of the
sexual characters.

LATHROBIUM Grav.

L<. tricolor n. sp. — Form somewhat slender, rather strongly depressed.
Pubescence of head prothorax and elytra in the form of very coarse erect
sparse setae, of a very dark piceous color, that of abdomen very fine, long,
recumbent, and extremely dense and even, very pale grayish-brown. Head
small, from base of antennae about as long as wide ; eyes rather large,
slightly oblique and slightly prominent, one-half their length from the bases
of the antennae; sides behind them parallel and feebly arcuate ; posterior
angles rather acutely rounded; base truncate, feebly sinuate in the middle ;

134 NORTH AMERICAN

apex between the antennae straight, one-half as long as the width of head ;
interocular surface broadly and evenly convex, polished, coarsely irregularly
and somewhat sparsely punctate, punctures round, deeply impressed and
varying greatly in size, very slightly less dense in the middle ; labrum more
than twice as wide as long, very deeply and broadly bilobed ; third joint of
the maxillary palpi but slightly longer than the second, very robust, conical,
squarely truncate at tip which is circular in outline and very deeply ex-
cavated, the fourth joint very thin and acicular, oblique, and attached at the
bottom of the deep concavity ; under surface of head, very minutely sparsely
and feebly punctulate, surface minutely rngulose ; antennae as long as the
head and prothorax together, not thickened toward tip, first joint scarcely
as long as the next two together, second just visibly shorter than the third
and equal in length to the fourth, the latter slightly thicker, joints four to
ten decreasing very slightly in length, equal in thickness, the latter dis-
tinctly longer than wide, last joint slightly elongate, constricted toward tip.
Prothorax widest at the middle where it is very slightly wider than the head
and nearly one-sixth narrower than long ; sides parallel throughout, feebly
and evenly arcuate ; apex slightly longer than the base, tlie former broadly
and feebly arcuate, the latter transverse ; apical angles rather acutely
rounded, basal broadly rounded ; disk broadly and rather feebly convex,
polished, having two medial rows of close rather coarse and irregularly dis-
posed punctures, intermediate space impuiictate, between them and the sides
the punctures are rather fine, sparse, unevenly disposed and irregular in
size. Elytra at base slightly wider than the pronotum ; sides very feebly
divergent posteriorly and very feebly arcuate ; together very broadly feebly
and triangularly emarginate behind ; disk broadly depressed, very feebly and
evenly convex, about one-fourth longer than the pronotum, and about one-
fourth longer than wide, punctures rather coarse toward the suture where
they are arranged in irregular rows, finer toward the sides where they are
confused and more sparsely distributed, very feebly impressed throughout.
Abdomen about as wide as tlie elytra; sides parallel and nearly straight;
border strongly inclined. Legs moderate.

Mtde. — Sixth ventral segment sinuate at tip, sinus slightly wider than
deep, evenly rounded at the bottom and scarcely more than one-half as wide
as the apices ; the contiguous surface feebly and cylindrically impressed.
First four joints of the anterior tarsus very broadly dilated, and extremely
densely pubescent beneath ; fifth joint slender and nearly as long as the first
four together.

Fimalc. — Unknown.

Lengtli 4.5-0.0 mm.

Cape May, New Jersey, 2.

The coloi's in this fine species are as follows: —

Head above anil neck (lee|) black, beneath piceous-black, paler
towanl the median line ; labrum, oral orj^ans, antennae and legs
tliroiigliout pale flavo-testaceous ; prothorax pale reddish-testaceous;
elytra black, having a narrow suffused band at the base and a narrow
edging along the suture reddish-testaceous ; abdomen pale yellowish-

COLEOPTERA. 135

brown from the pubescence, bases of the segments reddish from tlie
transmitted light ; under surface of abdomen of tlie same color as the
upper, bristling with long dense coarse erect setae toward tip. In
the second specimen the elytral punctures are arranged in tolerably-
well-defined rovvs nearly throughout the elytra.

Following the characters of Dr. LeConte's table of this genus as
carefully as possible, it appears to come immediately after his
ambiyiium.

L.. inops n. sp. — Form very slender, sub-depressed; color of body dark
reddish-testaceous, abdomen slightly darker, legs slightly paler and more
flavate, antennae slightly more flavate toward tip ; pubescence long, very
sparse and fine, recumbent, not conspicuous, scarcely thicker on the abdo-
men. Head large, distinctly longer than wide, widest at one-fourth the
length from the base ; eyes very small, not at all prominent, at more than
their own length from the angles of the epistoma, and at three times their
lengtli from the basal angles ; sides behind them just visibly divergent
posteriorly and rather feebly arcuate ; basal angles broadly rounded ; base
transversely truncate ; interocular surface broadly and evenly convex, shin-
ing, rather finely evenly and somewhat sparsely punctate, with a narrow line
almost impunctate along the middle ; supra-antennal angulations rounded
exteriorly, rather distinctly swollen, each with a small setigerous puncture ;
anterior edge of the epistoma broadly truncate and distinctly sinuate in the
middle, three-fifths as long as the greatest capital width ; antennae three-
fourths as long as the head and prothorax together, very robust throughout,
not appreciably thickened toward tip, first joint nearly as long as the next
two together, strongly narrowed toward base, scarcely twice as long as wide,
second slightly narrower, slightly elongated, very little shorter than the third
and longer than the fourth, joints four to ten about as long as wide, eleventh
small, acutely conoidal ; second joint of maxillary palpi slightly bent ; neck
short and broad. Prothorax slightly narrower than the head, slightly more
than one-third longer than wide; sides nearly parallel and almost straight
in the middle ; anterior and posterior angles broadly rounded toward the
sides, more acutely rounded next the anterior and posterior margins, the
former broadly arcuate, the latter very slightly shorter, transverse and feebly
sinuate in the middle; disk rather depressed, polished, rather broadly im-
punctate along the middle ; punctures rather small, aggregated densely in
a broad irregular line at the borders of the impunctured area, then more
sparse, and again more dense near the edges where they appear to tend to
an irregular linear formation. Elytra at base scarcely as wide as the pro-
notum ; sides rather strongly divergent posteriorly and extremely feebly
arcuate, nearly straight ; together broadly triangularly and rather strongly
emarginate behind ; exterior apical angles broadly rounded behind ; disk
very feebly convex, narrowly and rather strongly impressed along the
suture, distinctly shorter than the pronotum, and slightly longer than the
apical width, highly polished, and extremely feebly irregularly and some-
what sparsely punctate. Abdomen at base slightly narrower than the con-

13G NORTH AMEUICAX

tigiious elytra ; sides straight and extremely feebly divergent posteriorly ;
border nearly erect, thin ; surface rather feebly arcuate, shining, excessively
finely and feebly punctulate. Anterior femora dilated, toothed beneath ;
anterior tibiae dilated toward tip and channeled ; second joint of posterior
tarsi distinctly longer than the first, equal in length to the third.

Male. — Fifth ventral segment very feebly and evenly eniarginate in its
middle third at apex, contiguous sui-face broadly and feebly impressed ;
sixth segment eniarginate at tip, emargination two-thirds wider than deep,
sides feebly convergent and straight near the angles, and broadly and
arcuately rounded at bottom, contiguous surface feebly impressed anteriorly,
sides in the form of low broadly rounded ridged which terminate at the
angles of the emai-gination in rather well marked short slightly obtuse
teeth ; seventh segment widely divided.

Female. — Sixth segment elongate, abruptly truncate at the immediate
apex, truncation short and very feebly sinuate in the middle. Abdomen
broader ; elytra shorter, sides much less divergent ; more closely punctate
throughout ; smaller in size.

Length 5. 0-6.0 mm.

Lake SiiixM-ior, 2.

The above species appears to belonj; immediately after peddle in
Dr. LeConte's table, and is described from two specimens which I
received from Dr. LeConte in a heterogeneous mixture of refuse
material in great part unlabeled, and which Dr. LeConte thouglit
came from the Lake Superior region. As some of the specimens liad
Panama, S. Amer. labels, and others unlabeled I have since found
also came from that region, it may be possible tliat the species is in
reality a native of Panama.

It is evidently undescribed from Xortli America, and is of such an
interesting type that I have taken pains to describe it at length.

ORIJS n. gen.

Attention is called at this opportunity to a very serious error which
has entered our tables of genera, by whicli the antennae in all tiie spe-
cies occurring in North America and hitherto associated with Scopanis,
are termed straight. In our minute very slender species the antennae
are very strongly geniculate, but in opacns (Lee.) they are straiglit.
Then^ are many reasons, however, for believing that oparns does not
belong to the same genus as our small species of ScojiaHis, and a'* it
satisfies Lacordaire's description of Sco|)a'us, it is undoubtedly cor-
rectly placed; for the minute forms exigmis, picipes and pmicfnfiis,
I have created a new genus on account of the very different structure
of the maxillary palpi and form of the pronotum, in addition to the
geniculate antennae. In the species of Stilicus also which I have

COLEOPTERA. 137

examined from tlie United States, the antennae are rather strongly
geniculate and not straight as stated in the " Classification of the
Coleoptera of North America."

O. picipes n. sp. — Slender, depressed. Color throughout piceous-
black ; tarsi paler, testaceous ; antennae dark blackish-fuscous toward base,
palpi same; integuments iinpunctate, finely evenly and strongly' alutaceous
throughout every portion of the body, granulation coarser on the elytra and
abdomen ; pubescence of head and ijronotum very tine, sparse and incon-
spicuous, that of the elytra much more dense, tliat of the abdomen very dense,
short, fine, recumbent, cinereous, conspicuous. Head rather large ; sides
behind the eyes parallel and nearly straight ; base transversely truncate ;
posterior angles rather narrowly rounded ; eyes rather large, very coarsely
granulated, at more than their own length from the base, somewhat promi-
nent ; interocular surface rather strongly convex, narrowly rounded ante-
riorly ; antennal tuberculations small and prominent, intermediate surface
flat ; labrum transverse, very strongly ridged longitudinally, middle teeth
rather long and prominent ; antennae slightly shorter than the head and
prothorax together, strongly geniculate, slender, tip of apical joint paler,
basal joint robust, snb-cylindrical, two and one-half times as long as wide,
very slightly longer than the next two together, second slender, very slightly
longer than the third, joints four to ten sub-moniliform, nearly equal in
length, increasing very slightly in width ; third joint of maxillary palpi
longer than the second, more than twice as thick, very robust, obtusely
rounded at tip, fourth not visible. Prothorax slightly longer and very
slightly narrower than the head ; sides parallel and very feebly arcuate,
strongly convergent in the anterior fifth and nearly straight to the neck
which is very slender and scarcely one-fifth as wide as the head ; base
broadly and very feebly arcuate ; basal angles rather broadly rounded ; disk
rather strongly convex, much less so than the head, nearly one-third longer
than wide. Elytra very slightly wider than the head ; sides parallel, slightly
arcuate, more strongly so near the apical angles ; together broadly roundly
and rather feebly emarginate behind ; disk much longer than the ijronotum,
one-third longer than wide. Scutellum very small, semi-circular in outline.
Abdomen at base very slightly narrower than the elytra ; sides of the first
four segments gradually divergent and straight ; border strong, inclined,
equal ; fifth segment nearly as long as the two preceding together, sixth
short. Legs rather short ; femora swollen, upper edges rounded, strongly
arcuate, slightly paler toward tip ; tibiae slightly swollen toward tip ; tarsi
rather robust, first four joints of the anterior slightly dilated and spongy-
pubescent beneath.

Male. — Fifth ventral segment very broadly and feebly sinuate througliout
its width at apex ; sixth emarginate at tip, notch more than twice as wide as
deep, narrowly rounded at the bottom, sides feebly arcuate, apices angulate ;
seventh narrow, minutely emarginate at tip.

Female. — Body slightly wider ; anterior and middle legs paler ; sixth ven-
tral segment angularly rounded behind.

Length 2.3-2.5 mm.

138 NORTH AMERICAN

Cape May, New Jersey, 5.

Tliis species is somewhat abundant under debris on tlie sea-beach
at Cape May, and can easily be distinguished from exigiius by its
dark legs, sexual character and structure of the head. The anterior
tarsi in the female are spongy beneath, but slightly less dilated than
in the male.

O. piinctatllS n. sp. — Very slender, filiform, rather convex, intense
black tlirougliout, polished, punctate; abdomen alutaceous, coarsely granu-
lose ; antennae, tibiae, tarsi and second joint of the maxillary palpi dark
fuscous ; femora and third joint of the maxillary palpi very dark piceous-
black ; labial palpi very pale rtavo-testaceous, rather opaque ; pubescence
fine and very sparse except on the abdomen where it is slightly dense, pale
fulvous. Head longer than wide ; sides behind the eyes parallel, distinctly
but feebly arcuate, truncate at base ; posterior angles rather broadly rounded ;
eyes small, feebly convex, at nearly twice their length from the base ; inter-
ocular surface and occiput strongly convex, declivous at the base and sides
behind the eyes, scarcely punctate anteriorly, finely evenly and rather
densely so posteriorly and laterally; punctures round, very small, rather
deep, seijarated by scarcely twice their own widths ; not punctate but very
minutely ruguloso-strigate beneath, broadly and rather feebly arcuate ante-
riorly between the antennal tuberculations which are small and not very
prominent ; labrum strongly rugose anteriorly, middle teeth stout, acute at
tip and well marked ; antennae about one-half longer than the head, rather
slender, very feebly incrassate toward tip, basal joint moderately thick, as
long as the next two together, second much longer than the third ; basal
supports of the labial palpi very prominent, appeaj-ing like a basal joint,
first joint small cylindrical, as long as wide, second twice as long, oval,
scarcely thicker, third very thin acicular throughout, shorter than the
second ; second joint of the maxillary palpi thin, slightly bent and very
feebly thicker toward tip, third much longer than the second, more than
twice as thick, twice as long as wide, very thin at base, strongly and evenly
clavate, narrowly truncate at tip, fourth scarcely visible, extreruely minute,
oblique, subulate. Prothorax slightly shorter than the head and distinctly
narrower ; sides from the apex very strongly divergent and feebly arcuate
for one-fourth the length, thence just visibly convergent to the basal angles
and nearly straight ; basal angles rounded ; apex equal in width to the neck,
transverse, two-fifths as wide as<the pronotum ; base transverse; disk rather
convex, about one-fourth longer than wide, rather sparsely coarsely irregu-
larly and very feebly punctate ; medial longitudinal area impunctate. Scu-
tellum small, very transverse. Elytra at base much wider than the head ;
sides parallel, feebly arcuate ; together broadly roundly and very feebly
sinuate behin<l ; apical angles rounded ; disk rather convex, rather coarsely
evenly and extremely feebly punctate ; punctures round, distant by one-half
more than their own widths ; somewhat more than one-third longer than the
j)ronotum, and more than one-third longer than wide. Abdomen at base
distinctly narrower than the elytra; sides divergent and straight, and the

COLEOPTEKA. 139

border strong and nearly equal throughout the first four segments, fifth as
long as the two preceding together, sixth mucli shorter ; under surface much
paler toward tip. Legs slender ; femora slender, very feebly swollen ; first
four joints of the posterior tarsi very short, cylindrical, decreasing very
gradually but distinctly in length. Abdomen beneath very slightly paler
toward tip.

Male. — Fifth ventral segment abruptly produced in the middle fourth at
apex into a very short wide process which is broadly arcuate behind, with its
surface slightly reflexed and impressed in the middle, the impression extend-
ing anteriorly for a short distance along tlie segment ; sixth segment deeply
emarginate at apex, notch slightly deeper than wide, taking the entire apex,
bottom acutely rounded, sides sinuate, apical angles slightly produced in-
wardly, more broadly rounding externally and thence anteriorly along the
sides of the segment, apices very narrow ; middle process of seventh segment
very narrow, flat, sides parallel and straight, truncate at tip.

Female. — Unknown.

Length 3.0 mm.

California, 1.

A very singular species, not only from its resemblance in sculpture
to Latlirobium, but because of its sexual characters.

STILICUS Latr.

S. latillSCIllllS n. sp. — Form rather robust, depressed ; sides parallel.
Pubescence of head and pronotum excessively fine and sparse, scarcely visi-
ble ; that of the elytra much coarser, rather sparse, pale, not conspicuous ;
that of abdomen much finer, more dense and recumbent toward tip. Color
throughout deep black ; elytra slightly aeneous, pale testaceous along the
apical edge, more widely so toward the apical angles ; legs pale brownish-
rufous ; anterior coxae much darker, castaneous ; antennae dark reddish-
fuscous. Head large, very slightly longer than wide ; sides behind the eyes
strongly convergent, moderately arcuate ; posterior angles broadly rounded ;
base above truncate at the neck, beneath strongly emarginate in the middle,
emargination in the form of an acute cusp ; eyes large, rather prominent ;
genae from the eye to the neck equal in length to the former ; interocular
surface very moderately convex, coarsely variolately and extremely densely
punctate, punctures elongated, and, toward the sides, semi-coalescent ; in the
middle in a very small elongated area they are isolated and comparatively
sparse ; supra-antennal tuberculations small and prominent ; epistoma trans-
versely truncate anteriorly ; labrum broadly arcuate, rounded at the sides,
teeth very small, short and robust ; antennae but slightly longer than the
head, very slender, very feebly incrassate toward tip, basal joint slender,
slightly longer than the next two together, second much shorter and slightly
more robust than the third, fourth as long as the second, more slender than
the third, two-thirds longer than wide, tenth slightly wider than long,
eleventh conoidal, finely acuminate ; under surface strongly and roundly
declivous behind and toward the emargination, nearly fiat between the
eyes, coarsely and very densely punctate, punctures generally not coales-

140 NORTH AMEUICAN

cent, interspaces one-third as wide, polished. Neck very narrow. Prothorax
widest at one-tliird the length from the apex where it is distinctly narrower
than long ; sides thence very strongly convergent and feebly sinuate to the
anterior angles, and very feebly convergent and nearly straight to a point
one-fourth the length from the base where they become much more strongly
convergent and straight to the basal angles ; apex scarcely more than one-
half as long as the base, broadly sinuate ; apical angles acute ; base broadly
arcuate ; disk very strongly convex, coarsely variolately and densely piinc-
tate, punctures nearly round and not coalescent ; along the middle there is a
bioad highly polished impunctate area, equally wide throughout, and having
along its crest a very feeble stria. Elytra at base slightly narrower than
the head ; sides parallel, feebly arcuate toward the apices ; together broadly
roundly and very feebly eniargiuate behind ; disk slightly longer than wide,
depressed, highly polished, impressed rather strongly along the suture toward
the base, very minutely evenly and sparsely punctate, punctures round and
very distinct. Abdomen at base slightly narrower than the elytra; sides
divergent to the third segment which is equal in width to the fourth ; border
strong ; surface broadly convex, finely closely and asperately punctate ;
punctures arranged transversely and sub-serially ; each dorsal segment
bearing near the apex on each side and within the border a long erect black
seta, and a short discal one near the middle. Legs slender : first joint of
the posterior tarsi as long as the next two together. Prosternum narrowly
and somewhat feebly carinate.

Male. — Fifth ventral segment broadly roundly and very feebly eniargiuate
in the middle tliird at apex, not toothed ; sixth segment abrui)tly emarginate
in its middle tliird at apex, emargination evenly and almost semicircularly
rounded, slightly more than twice as wide as deep.

Female. — Second joint of antennae distinctly longer than the fourth, very
slightly shorter than the third. Sixth ventral segment evenly rounded
behind.

Length 3.7-4.6 mm.

Willets Point, Long Island, 3; Atlantic City, New Jersey, 1.

It is very singular that such a distinct and well-marked species aa
the present should have so long escaped detection. It probably should
be placed immediately after opacidus in Dr. LeConte's table of the
genus, and may be distinguished from qi(adriceps by the head not
being (juadrate beiiind the eyes and not emarginate at base above;
from opaculiis it is at once distinguishable by the sexual characters.
The above description is taken from the male. The pronotum has
on each side two long erect black setae.

While writing of this genus it is proper to remark that the portion
of the head behind the eyes in my representative of S. rudis Lee,
altlioiigh very nnich longer than usual in this genus, is still one-third
wider than long, and not as Dr. LeConte states longer than wide.

COLEOPTERA. 141

EKCHOMIJS Mots.

E. flavidllS n. sp. — Form as in ventriculus. Color throughout evenly
flavo-testaceous, with a slightly reddish tinge ; head dark piceous-brown ;
antennae pale toward base, dark piceous-brown toward tip, apical joint
slightly paler toward tip. Head much broader than long, strongly detlexed ;
front feebly convex, feebly strigose and nearly vertical, nearly semicircu-
larly rounded froin the front margin around the sides and base, and in con-
tact with a similarly rounded emargination in the pronotum ; antennae but
very slightly longer than the width of head, first joint more than twice as
long as wide, cylindrical, second thinner, conoidal, base narrow, two- thirds
as long as the first, third shorter than the second, very thin, conical, fourth
very small, wider than long, first four joints glabrous, remaining joints in-
creasing in width, slightly compressed, roughly and finely asperate, densely
and very finely pubescent, and coarsely and sparsely setose, fifth but very
slightly wider than long, tenth nearly one-half wider than long, eleventh
distinctly longer than wide, obtusely rounded at tip, ovoidal. Prothorax
slightly more than twice as wide as long ; apex from above transverse and
straight, three-fifths as long as the base which is also transverse and straight ;
sides strongly and exactly evenly rounded throughout, being almost an exact
arc of a circle, the tangents drawn to it at the base are not parallel but very
feebly divergent anteriorly ; basal angles from above right and not at all
rounded, viewed laterally narrowly rounded and slightly acute; disk very
strongly convex, sti"ongly margined at the sides, polished, very minutely
evenly and rather sparsely punctate. Elytra at base as wide as the con-
tiguous pronotum ; sides continuous in direction with the pronotal tangents
at the basal angles, or very feebly convergent posteriorly, slightly arcuate ;
together broadly roundly and extremely feebly emargijiate behind ; disk
about one-third longer than the pronotum and nearly one-half wider than
long, very convex, shining, finely and roughly undulated or rugulose, also
finely and evenly punctate ; punctures larger than those of the pronotum,
sometimes in broken longitudinal aggregations. Abdominal segments de-
creasing very rapidly in width, first narrower than the contiguous elytra ;
border narrow and inconspicuous ; surface shining, strongly convex, covered
very sparsely with excessively short fine and recumbent cinereous liairs,
finely and regularly imbricated, imbrications longer than wide, acute, finely
reticulated ; each segment beneath bears a short stout intensely black seta
near the apex and the lateral edge; the sixth segment having two longer
ones on each side. Legs short and stout ; posterior tibiae having two stout
spines on the inner side, and terminated by several short irregular spines,
and a few close stout spinules, not darker ; tarsi cylindrical, nearly glabrous,
first joint nearly as long as the next three together. Length (contracted)
2.0 mm.

Jenkintown, near Philadelphia, 4.

The description is taken from the female, and the middle lobes of
the sixth ventral segment are terminated by four stout closely placed
arcuate spinules ; the dorsal teeth are as in ventriculus except that
Cont. Fart II. 6 January, 1885.

142 NORTH AMERICAN

the middle teeth are rather less slender and project further beyond
the lateral ones than in that species. At first glance this species,
es| ecially it" represented by a single specimen, would be pronounced
witiiout doubt a pale specimen of ventricvlus^ but when examined
carefully it presents so many points of departure from that species
irrespective of color, as to leave no doubt whatever of its distinctness.
The principal differences are in the color, structure of the antennae,
elytral sculpture, abdominal imbrication and slight differences in the
sexual characters. In ventricuhis the color is invariably intense
black througliout, the fourth joint of the antennae is fully as long if
not longer than wide, and the outer joints are more transverse in
j)roportion; the elytral sculpture is smoother, although more strongly
punctate, and the imbrication of the abdomen is much more irregular.
This species is evidently not tiie form alluded to by Dr. Horn, and
represented by the paler specimens of ventriculus, the paleness being
apparently due to immaturity ; the black abdominal setae and dark
piceous color of the head alone refute this view, there being not a
particle of variation in the four specimens before me.

COIVIIRUS Steph.

C. versicolor n. sp. — Form rather robust, very convex. Pubescence
ratber coaise and sparse, yellowish-cinereous ; head and prothorax dark
reddish-brown, base of the latter paler ; elytra at base reddish-testaceous,
the color extending slightly along the elytra, remainder of tlie disk piceous-
black ; abdomen very dark piceous-brown ; under surface of the body very
pale reddish-testaceous, abdomen dark brown ; first three joints of antennae
pale testaceous, four to ten dark brown, eleventh reddish-testaceous. Head
nearly twice as wide as long, moderately convex, highly polished, broadly
rounded behind, strongly deflexed ; emargination of pronotum for its recep-
tion much more than twice as wide as long, broadly rounded at bottom, sides
near the apical angles parallel ; epistoma very slightly wider than long,
tinely rugulose, finely and sparsely punctate, sides nearly parallel and
straight, apical margin broadly arcuate ; antennae nearly as long as the head
and prothorax together, extremely strongly compressed toward tip, the last
joint being very thin, second joint much shorter than the third, third to fifth
equal in length, the first two equal, thinnest, cylindrical, the fifth bro.ader
toward tip, joints six to ten shorter, sub-equal in length, increasing in width,
slightly narrowed toward base, sides straight, the former nearly twice as long
as wide, the latter slightly shorter than the tenth and but very slightly
longer than wide, eleventh elongate, oval, obtusely rounded at tip, much
shorter than the two preceding together. Prothorax widest at the base
where it is a little more than one-third wider than long; sides very evenly
and moderately rounded ; apex much less than one-half as long as the base,
very feeldy arcuate, the latter straight ; basal angles from above slightly
acute and not at all rounded, laterally slightly produced, rather strongly

COLEOPTERA. 143

and very evenly rounded ; sides very feebly sinuate toward the apical angles
which are very narrowly rounded ; disk very convex, highly polished, ex-
cessively minutely transversely and feebly strigose, not punctate except the
impressions left after the denudation of the hair. Elytra at base as wide as
the contiguous pronotum ; sides moderately convergent posteriorly and feebly
arcuate; together nearly transversely truncate behind; disk very slightly
wider than long, strongly convex, shining ; sculpture finely feebly and evenly
imbricate, imbrications wider than long, finely reticulate ; disk also distinctly
and minutely aspero-punctate, an asperate setigerous puncture at the base of
each imbrication. Abdomen at base very slightly narrower than the elytra,
pale at tip, finely pubescent, having numerous erect coarse black spinous
setae at the sides. Legs moderate, pale reddish-testaceous ; feinora and
middle tibiae flattened, the latter fimbriate at tip and for one-fourth the
length along the inner edge with erect stout closely placed black spinules,
having also one long stoiit terminal spur, and one smaller erect spine on the
inner edge near the middle ; anterior tarsi broadly dilated, spongy-pubescent
beneath ; anterior tibiae fimbriate along the outer edge fcom base to apex
with stout black closely set spinules ; mesosternum very narrowly and
strongly carinate ; presternum having a median tuberculation bearing five
long slender parallel setae, the middle one the longest. Length (strongly
contracted) 2.4 mm.

Jenkintown, near Philadelphia, 1.

Tliis species belongs immediately after crassus in the catalogue,
and may be distinguished from that species by its much smaller size,
coloration, and shape of the epistuma, it being very strongly transverse,
transversely truncate anteriorly with the sides parallel and slightly
sinuate. Tiie two species also differ in the structure of the antennae,
in which the tenth joint is not shorter than the ninth, is less strongly
compressed, and is much longer than wide in crassus; also in the
latter the eleventh joint is more abruptly compressed, is extremely
thin and two and one-half times as long as wide. The emargination
of the pronotum for the head in crassus is much shallower, and the
sides near the anterior angles are very widely divergent.

The beautiful fimbriation along the edge of the anterior tibiae
which also exists to a less marked degree in crassus, is a character
which does not seem to have been noticed, as may perliap.s also be
the case in regard to the prosternal spines.

C initoricatus n. sp. — Form very convex, rather slender. Color
piceous-black, posterior margin of the pronotum very narrowly paler from
diaphaneity ; abdomen paler, reddish-fuscous, paler toward tip ; pubescence
very fine, rather dense, recumbent, almost equally distributed over the entire
dorsal surface. Head wider than long, polished, very minutely sparsely and
evenly punctate, slightly more strongly so anteriorly ; eyes rather small and
slightly prominent ; antennae scarcely as long as the width of head, slender
and paler toward base, piceous-brown, apical joint very pale flavate, penul-

144 NORTH AMERICAX

tiuiatc (larkpr not very densely pubescent, first joint slender, very slightly
thicker than the second and but one-fourth longer, more than three times as
long as wide, second slender, sub-cyliudrical, three-fourths as long as the
third which is very slender, slightly narrowed toward base, third to fifth
slightly decreasing in length and increasing in thickness, the latter about
twice as long as wide and almost cylindrical, sixth to tenth nearly equal in
length, shorter than the lifth, increasing in width, the former slightly longer
than wide, the latter one-third wider than long, sides moderately convergent
toward base, basal angles broadly rounded, eleventh nearly as long as the
ninth and tenth together, slightly wider than the tenth, somewhat abruptly
constricted toward the tip whicji is obliquely produced and acutely rounded,
outer joints somewhat distinctly compressed ; third joint of the maxillary
palpi much longer and thicker than the second, third thin, conical, shorter
than the second. Prothorax widest at one-fourth the length from the base
where it is about one-third wider than long ; sides not strongly arcuate ;
apex from above rather strongly arcuate, about one-half as long as the base
with the angles rounded and obsolete, basal angles slightly produced, right,
and not rounded from above, slightly obtuse viewed laterally and not
rounded ; base transverse and straight ; pronotum not punctate except in
the minute impressions left by the denuded pubescence, transversely very
minutely and feebly strigose. Elytra at base very slightly narrower than the
pronotum ; sides feebly convergent posteriorly and slightly arcuate, apical
angles rounded broadly behind ; together transversely and just visibly
emarginate behind; inner apical angles narrowly rounded; disk broadly
convex, very slightly wider than long, about as long as the pronotum, shin-
ing, densely finely and feebly imbricate, imbrications slightly longer than
wide, coarsely reticulate, very minutely punctato-asperate. Abdomen at
base as wide as the contiguous elytra, having a very few short, black setae
along the sides, and long black prominent setae on the sixth segment, ex-
cessively finely alutaceous. Legs rather long and slender, dark reddish-
testaceous ; middle femora with a single long stout erect spine on the lower
edge near the tip ; middle tibiae with a long stout and a second small slender
terminal spine, also fimbriate at tip with short very robust equal spinules,
pale in color. Length (somewhat extended) 3.3 mm.

Staten Island, New York, 1 9.

The sixth ventral segment is narrowly ami roundly produced in
the middle, the edge of the almost semicircular produced portion
bearing six equal and stout porrected spines which are parallel, there
is also a very small obtuse projection of the edge at each side which
bears an extremely long black seta ; dorsal quadridenfale, middle
teeth projecting slightly beyond the lateral, acute ; middle notch less
deep than the lateral ; lateral teeth each bearing three stout black
discal setae, the terminal two very long, the middle pair each one,
much siiorter; each tooth is prolonged posteriorly in a stout porrected
pale seta. The species belongs inimediately alter pubescens in the
catalosrue.

COLEOPTEUA. 145

It will be noticed that there is a very marked difference in the
structure of the antennae in the present group and tliat containing
crassns and versicolor.

C. OCCUltus n. sp. — Form rather robust, oval. Color black ; elytra near
the hiiiueri sliglitly reddish, and also paler and reddish narrowly ah)ng the
apices ; pronotum much paler in a narrow border along the base ; abdomen
piceous-black, apices of the segments narrowly trauslucent and bright fulvous
by transmitted light, scarcely paler by reflected light, terminal segment not
paler ; pubescence rather sparse, coarse and somewhat unevenly distributed,
pale yellowish-cinereous. Head much wider than long, rather convex,
highly polished, very feebly and minutely punctulate ; eyes small, not
prominent; antennae slightly shorter than the head and prothorax together,
two basal joints pale testaceous, remainder dark piceous-brown, terminal
joint paler, joints rather strongly compressed toward tip, basal joint rather
robust, two and one-half times as long as wide, narrowed toward base, bear-
ing two short black setae near the tip, second slightly more slender, oval,
third scarcely as long as the second, very slender, narrowed toward base,
fourth slightly shorter and wider than the third, slightly more than twice as
long as wide, much broader at base than the third, joints five to ten decreas-
ing very slightly in length a7id increasing in width, the former very slightly
shorter than the fourth, about two-thirds longer than wide, the latter about
as wide as long, sides rather strongly convergent to the bases, basal angles
very slightly rounded, eleventh distinctly shorter than the ninth and tenth
togetlier, scarcely more than one-half longer than wide, feebly constricted
near the tip which is obtusely but not appreciably obliquely rounded. Pro-
thorax widest at the base where it is scarcely one-fourth wider than long ;
sides very evenly and rather strongly arcuate ; apex broadly and distinctly
arcuate, very slightly more than one-half as long as the base which is broadly
and feebly arcuate and feebly sinuate toward the basal angles : the latter,
viewed laterally, strongly obtuse and rather broadly rounded ; sides straight
toward the apical angles which are nari'owly rounded ; disk very strongly
convex, highly polished, finely evenly and very distinctly punctato-asperate,
intervals transversely and very minutely strigate. Elytra at base about as
wide as the pronotum ; sides feebly convergent posteriorly, slightly arcuate
near the humeri, straight near the apices ; together broadly triangularly and
feebly emarginate behind ; disk shining, strongly convex, sculpture coarsely
and obscurely imbricate, imbrications broader than long, finely and distinctly
reticulated, each with a minute but distinct and strongly asperate puncture
at base. Abdomen very convex, shining, sculptured like the elytra, iuibri-
cations obscure, segments smoother and less punctate toward the apices ;
along the sides there are a few short erect black setae, and a cluster of about
ten larger and longer ones bristling from the posterior segment ; under sur-
face much more coarsely and closely punctate. Legs rather slender, dark
reddish-testaceous ; middle femora with four erect spines along the lower
edge near the tip, the penultimate much the longest ; posterior femora with
three such spiiies, the middle one the longest; middle tibiae fimbriate at tip
with short equal closely set spinules, terminated by a single very robust

146 NORTH AMERICAN

spine, liaving at the middle of its length one or two interior and two exterior
stout oblique spines ; anterior tarsi strongly dilated ; corresponding coxae
strongly globose, dark brown in color, surface coarsely imbricate. Length
(contracted) 2.8 mm.

District of Columbia, 1.

It may be possible that tliere is a second smaller spine at the apex
of the middle tibiae, but it is not visible in the type specimen. It
appears to belong immediately after bisignatus. The structure and
shape of the pronotum and elytra in many species of the present
genus call to mind very vividly several forms of Tricliopteryx on a

C. corticola n. sp. — Form rather slender. Color piceous-black ; elytral
humeri scarcely distinguishably reddish ; abdomen not paler except at- tip
and by transmitted light ; pubescence rather dense, short and coarse, very
pale yellowish, more dense and conspicuous on the abdomen. Head much
wider than long, rather convex, highly polished, very minutely punctate,
punctures being nearly com])letely filled by the hairs ; sides of the contigu-
ous emargination of the pronotum nearly parallel at the apical angles viewed
longitudinally ; antennae robust, scarcely as long as the head and prothorax
together, first two joints translucent, dark tlaVo-testaceous, eleventh opaque,
pale tiavate, remainder piceous-black, basal joint rather robust, narrowed
toward base, scarcely more than twice as long as wide, second but very
slightly shorter and thinner, oval, third as long as the first, slightly thinner
than the second, narrowed toward base, four to ten decreasing very gradually
in length and increasing in width, the former about three-fourths as long as
the third, scarcely two-thirds longer than wide, the latter one-fourth wider
than long, sides of all very feebly convergent toward the base, nearly straight,
basal angles feebly rounded, eleventh very abruptly pale, scarcely one-third
longer than wide, oval, very feebly constricted at tip which is obliquely and
obtusely rounded, outer joints rather strongly compressed, basal joints with
two long setae above near the tips, outer joints coarsely setose and finely
pubescent. Prothorax widest at one-fourth the length from the base where
it is nearly two-thirds wider than long; sides moderately arcuate; apex
broadly and feebly arcuate, sinuate near the apical angles, fully tiiree-fifths
as long as the base which is broadly and feebly arcuate ; basal angles from
above obtuse and not rounded, viewed laterally obtuse, very slightly pro-
duced and very slightly rounded, sides almost straight toward the apical
angles which are right and not at all rounded ; disk very strongly convex,
polished, minutely evenly and rather distantly punctato-asperate, inter-
spaces very minutely and feebly strigato-reticulate. Elytra at base slightly
narrower than the pronotum ; sides feebly convergent posteriorly, rather
distinctly arcuate near the humeri, straight toward the apical angles which
are rounded ; together nearly transversely truncate behind ; inner apical
angles slightly rounded ; disk very strongly convex, shining, slightly wider
than long and distinctly longer than the pronotum ; sculpture strongly
rather finely and somewhat distinctly imbricate, imbrications as wide as

COLEOPTERA. 147

long, finely and obscurely reticulate, each having at base a fine but very
distinct asperate puncture. First abdominal segment much narrower than
the contiguous elytra ; surface more finely and densely punctat<^ than the
elytra, feebly shining through the very dense coarse pubescence, having
along the sides a few rather small erect black setae. Legs moderate ; coxae
and femora dark reddish-brown ; tibiae and tarsi distinctly paler, reddish-
testaceous ; spinules of the fimbriate row along the outer edge of the anterior
tibiae short, equal, contiguous and very pale in color ; anterior tarsi strongly
dilated toward base, densely pubescent beneath ; middle tibiae slender,
fimbriate at tip with short equal pale spinules, als,o having a rather long
terminal spine and a second much shorter one, having at the middle of its
length two small oblique inner and two outer spines, also at one-third the
length from the apex two inner and one or two similar outer spines. Under
surface of the body dark piceous -brown. Length (contracted) 2.3 mm.

Jenkintown, near Philadelphia, 2 S •

The description is taken from a male while that of occnltus is
drawn from the female ; the differences noted in the shape of the
pronotnm, together with the structure of the middle tibiae are too
great to be accounted for by sex, although it may be possible that the
lateral spines alluded to are not altogether constant. It appears to
belong near pubescens in the tables.

C setifer n. sp. — Form rather slender, very convex. Color of head and
prothorax black, basal margin of the latter paler ; elytra dark piceous-black,
paler and reddish at the base, especially near the middle of each, also nar-
rowly paler at the apices ; abdomen reddish-fuscous ; pubescence very fine
and moderately dense, very short and recumbent, cinereous. Head rather
small, convex, polished, very sparsely pubescent; eyes very coarsely reti-
culated ; antennae not as long as the head and prothorax together, very
strongly compressed toward tip, basal joints dark piceo-testaceous, paler
toward tip, joints two to seven nearly piceous-black, basal joint sub-cylin-
drical, about two and one-half times as long as wide, second thinner, nearly
cylindrical, scarcely two-thirds as long as the first, three-fourths as long as
the third which is thinner and narrowed toward base, third and fourth
equal, fifth equal in length, slightly thicker and less strongly narrowed
toward base, nearly three times as long as wide, joints six to ten slightly
shorter, equal in length, increasing in width, the former nearly one-half
longer than wide, the latter about as wide as long, eleventh about one-half
longer than wide, oval, obliquely and rather obtusely acuminate at tip.
Prothorax about one-third wider than long; sides very evenly and almost
circularly arcuate throughout, nearly parallel for a short distance from the
base ; apex broadly arcuate, nearly three-fifths as long as the base which is
broadly and very feebly arcuate ; basal angles from above slightly obtuse
and not rounded, viewed laterally they are obtuse and narrowly rounded ;
disk very convex, highly polished, impuuctate except the scars left by fallen
hairs. Elytra at base slightly narrower than the pronotuni ; sides slightly
convergent posteriorly, feebly arcuate near the humeri, nearly straight

148 NORTH AMERICAN

toward the apical angles which are obtusely rounded ; together broadly
triangularly and feebly eniarginate behind ; disk very convex, shining,
distinctly wider than long and equal in length to the pronotum ; sculpture
rather coarsely and very distinctly irabriuate, fnu'ly reticulate, very minutely
and not distinctly punctato-asperate. Abdomen at base narrower than the
elytra ; surface more finely and indistinctly sculptured ; apices not punctate,
transversely and excessively finely strigose, having along each side a double
line of erect very coarse long black bristles which are very prominent. Legs
long and slender, dark rufo-testaceous, darker toward the coxae ; middle
tibiae with one terminal spine, and also fimbriate at tip with unusually
short and equal spinnles which are not as close as those of the preceding
species, this tibia also has usually one outer and two inner spines along the
sides ; under surface of the body nearly piceous-black. Length (contracted)
1.9-2.3 mm.

Jcnkintown, near Philadclpliia, 2.

Tlie (k'scription is drawn from the male ; the female lias on the
discal surface of the second and tliird abdominal segments a third
inner line of black bristles, one on each segment ; none of the bristles
are apical, and they are all very large and conspicuous. The female
is the smaller.

This species should probably be placed after basalis in Dr. Horn's
table, and may be distinguished from that species by its very small
size and the single terminal spine of the middle tibiae.

In Conurus the anterior tarsi are dilated equally in both sexes, at
least in all the species which 1 have examined ; and not as stated by
Dr. Horn in the male only. It is probably a very extensive genus in
the United States, judging by the above new forms found near Phila-
delphia, and the large number described from the tropical regions of
our continents. They are exceedingly active and often difficult to
capture, disappearing as soon as the bark, under which they usuallv
live, is removed from the fallen log, and, unless a cloth is held in
readiness below, they are generally lost.

BOLITOBIUS Steph.

It. facilis n. sp. — Form moderately robust, depressed. Head black;
})n>ii(itum jiale flavo-testaceous, very translucent; elytra very translucent,
tlavo- testaceous except a black spot near the apex of each indefinitely
shaded, not attaining the apical edges, extending broadly to and along the
epii)leurae, and becoming narrower toward the suture which is nearly at-
tained, suture very narrowly dark oast aneous ; abdomen unicolorous above
and beneath, reddish-brown ; apices of the segments translucent and paler
above, nearly black beneath. Head very slightly longer than wide, very
liighly polished ; labrum, oral organs and first three joints of the antennae
pale flavo-testaceous, remaining joints of the latter piceous-black ; maxillary

C'OLEOPTKUA. 149

palpi long and slender, third joint nearly as long as the second and as
rol)Ust, second bent, fonrth much longer than the third, exactly conical,
extremely acute at tip, nearly as wide at base as tip of third, nearly four
times as long as wide at base ; antennae nearly as long as the head and
prothorax together, first joint slender, as long as the next two together,
second thinner, sub-cylindrical, one-half longer than wide, third one-third
longer than the second, conical, very slender at base, truncate at tip and
very slightly longer than tlie fourth, joints four to seven increasing in width,
the former cylindro-conical, one-third longer than wide, the latter as wide as
long, joints seven to eleven sub-equal in width, ninth and tenth just visibly
wider than long, eleventh slightly shorter than the two preceding together,
elongate oval, paler in its distal half, joints from the fifth rather strongly
compressed, fifth to tenth truncate at tip, narrowed toward base, having
around the edge at tip several long stout setae. Prothorax widest at two-
thirds its length from the apex where it is nearly one-third wider than long,
sides broadly rounded, more strongly so toward the base ; apex about two-
thirds as long as the base, broadly arcuate, the latter transverse in the
middle, broadly rounded toward the basal angles which are also rather
broadly rounded ; disk without median punctures, having the usual marginal
punctures. Elytra at base as \Yide as the pronotum ; sides very feebly diver-
gent posteriorly, feebly arcuate ; disk depressed, narrowly impressed along
the suture, broadly and triangularly emarginate behind, slightly longer than
wide, highly polished ; sutural row of about ten punctures, row at the outer
two-thirds exactly parallel to the suture of about nine, mai-ginal row of about
eleven punctures, all small but distinct, setigerous. Abdomen decreasing
very rapidly in width, first segment about as wide as the contiguous elytra ;
border rather strong toward base ; surface broadly convex, rather sparsely
finely strongly and asperately punctate, somewhat thickly clothed with long
fulvous setae ; punctures of under surface equally dense but much more
elongated, appearing like minute canaliculations. Legs very pale, fiavo-
testaceous, slightly more dense and rufous toward the ends of the tarsi ;
tibiae terminated by four or five very unequal spines ; middle and posterior
femora having a few short closely set erect spines along the inner edge at
the tips ; posterior tarsi long and very slender, distinctly longer than the
femora, first joint as long as the next three together.

Male. — Sixth ventral segment having a rather feeble oval impression near
the tip, which is coarsely and peculiarly roughened, tip slightly prolonged
and broadly rounded behind ; seventh segment rather acutely rounded
behind.

Female. — Smaller in size and more slender, abdomen extremely sparsely
and finely punctate, ventral segments normal.

Length 2.8-4.0 mm.

Jeiikintown, near Philadelphia, 3; Washington, District of Colum-
bia, 2.

Just outside of the upper epipleural edge there is a row of small
closely placed non-setigerous punctures. This species probably be-
longs immediately after axillaris in Dr. Horn's table of the genus.

150 NORTH AMERICAN

One specimen, a female, I shook into the beating net from a low
bushy tree.

B. OCCidllllS n. sp. — Form rather robust. Head black, oral organs and
first three joints of the antennae Havo-testaceous ; disk of prothorax piceous-
black, anterior margin extremely narrowly, sides and base more broadly
brownish-testaceous, translucent; elytra brownish-testaceous, very pale, in-
definitely clouded with darker castaneous-brown toward tlie apices and along
the epipleurae, very translucent ; abdomen dark piceous-brown, darker,
nearly black beneath, apices of the segments paler in both cases ; under
surface anteriorly piceous-black ; legs pale brownish-testaceous, anterior
coxae slightly darker. Head robust, distinctly wider than long, moderately
convex, very highly polished ; maxillary palpi moderately slender, second
joint very feebly arcuate, about twice as long as wide, third as long as the
second, conical, twice as thick at apex as at the base, fourth conical, no
longer than the third, very acute, slightly more than twice as long as wide
at base ; antennae slightly shorter than the head and prothorax together,
first joint scarcely as long as the next two together, second three-fourths
longer than wide, nearly cylindrical, as long as the third, third more slender,
strongly constricted toward base, joints four* to ten increasing gradually in
width, the former slightly longer than wide, seven to ten distinctly wider
than long, slightly compressed, nearly equal in length, trapezoidal, eleventh
compressed, elongated, oval, not as long as the two preceding together, not
paltr at tip, joints four to eleven black, coarsely and longitudinally punctate.
Prothorax widest at two-thirds its length from the apex where it is one-fourth
wider than long ; sides thence very feebly convergent and very slightly
arcuate to the basal angles, which are rather broadly rounded, slightly more
convergent and very feebly arcuate anteriorly ; apex transverse and nearly
straight, three-fourths as long as the base which is broadly arcuate ; disk
rather convex, highly polished, middle apical punctures at a slight distance
from the apical margin. Elytra at base as wide as the prothorax ; sides
feebly divergent and feebly arcuate, more strongly so toward tb.e apices ;
together broadly and very feebly emarginate toward the suture behind ;
disk depressed, highly polished, as long as wide, narrowly impressed along
the suture ; punctures very fine, setigerous, sutural row of four or five, discal
row of five or six, marginal of five or six all somewhat irregularly spaced,
along the crest of the raised upper margin of the epipleurae there is a row
of very minute slightly oval non-setigerous punctures, seven or eight in
number. Abdomen polished, moderately convex ; sides straight and rapidly
convergent, basal segnu^it nearly as wide as the contiguous elytra; border
strong on the first four ; -surface si»arsely and canalicularly punctate, ira-
punctate in the middle toward the base; pubescence coarse and very sparse,
iinder surface more densely and coarsely punctate. Legs moderate, posterior
slender ; posterior tibiae terminated by seven to eight very unequal spines,
corresponding tarsi slightly longer than the tibiae, first joint not as long as
the next three together; middle and posterior femora with three or four long
slender erect spines near and at the tip, along the inner edge. Prosternum
strongly carinate ; anterior coxae strougly globose ; posterior aud lateral

COLEOPTERA. 151

portions of the mider surface of the head rather coarsely and strongly rugu-
lose or obliquely strigate. Length 3.4 mm.

AVashington Territory, 1.

This species also belongs near axillaris because of" the unicolorous
abdomen, and the transverse joints of the antennae. Tiie [)ronotum
somewhat resembles that of cincticoUis.

BRYOPORUS Kraatz.

B. parvilllIS n. sp. — Form very slender, linear, convex. Head black ;
remainder of the body very dark blackish-red ; elytra slightly paler from
diaphaneity ; legs paler, testaceous ; antennae at base and oral organs same,
the former toward tip dark fuscous. Head moderately convex, slightly
longer than wide, strongly deflexed, highly polished ; antennae about as
long as the head and prothorax together, rather slender, basal joint longer
than the next two together, second and third equal in length, the latter
more conical and much narrower toward base, joints four to ten increasing
in width, nearly of equal length, the former slightly longer than wide, the
latter one-third wider than long, all truncate at base and apex, sides very
feebly convergent toward base, eleventh slightly longer than wide, as wide
as the tenth, oides gradually convergent toward tip which is rather acutely
rounded, outer joints rather strongly compressed; maxillary palpi rather
slender, last three joints equal in length, fourth conical, acute, as wide at
base as the apex of the third, sides very feebly arcuate. Prothorax widest
at three-fourths the length from the apex where it is very slightly wider
than long ; sides nearly evenly and rather feebly arcuate throughout; basal
angles rather narrowly rounded ; apex nearly transverse, about two-thirds
as long as the base which is very broadly and feebly arcuate ; disk polished.
Elytra at base as wide as the pronotum ; sides parallel and nearly straight ;
together just visibly emarginate behind; disk poHslied, depressed, scarcely
perceptibly longer than wide ; sutural row of six or seven distinct punctures ;
elsewhere the punctures are sparse, very feebly impressed, and arranged in
many incomplete rows ; punctures along the crest of the upper marginal line
of tliH epipleurae widely spaced and few in number; epipleurae narrow, not
attaining the apices of the elytra which are strongl}' indexed toward the
apical angles. Abdomen at base fully as wide as the elytra; sides feebly
convergent behind and nearly straight ; border strong ; surface rather feebly
convex, polished, finely and rather closely punctate, nearly piceous-black,
apices paler, rufous ; leather densely pubescent, hairs fulvous ; under surface
fulvous toward tip. Legs long and slender ; anterior coxae robust, globose
beneath ; femora with several coarse erect unequal spines along the inner
edge at tip ; middle and posterior tibiae having three or four long stout very
unequal spines at tip, and also fimbriate with very short close sub-equal
spinules ; posterior tarsi very long, first joint as long as the next two
together, basal joints fimbriate at tip with short very close sub-equal
spinules. Length 2.6 mm.

Pennsylvania, near Philadelphia, 1.

152 NORTH AMERICAN

Tlie jicnus Bryoporus cannot |»roperly be separated from Bolitobius
by tbe form of the maxillary palpi, as this organ is identical in struc-
ture in many parallel cases. The three rows of elytral punctures in
Bolitobius ai)pears to be a very constant character, and taken in con-
nection with the much more linear parallel form of the body, and
polyserial punctuation of the elytra in Bryoporus, forms apparently a
much more steadfast mark of distinction than can possibly be main-
tained from the palpal structure. The very long posterior tarsi in
Bryoporus is another distinctive feature, and there are differences in
the form and extent of the elytral epipleurae.

The present species differs greatly from rufescens in size and punc-
tuation of the elytra, and very distinctly in the structure of the elytral
epipleurae and number of [)unctures along the crest of its up[)er margin.

IttYCETOPORUS M:nin.

M. iiKluisitlls n. sp. — Form somewliat robust. Head bhick ; protho-
rax (lark reddish-testaceous; elytra dark piceo-testaceous, very indelinitely
darker and brownish along the sides, and near the suture ; abdomen piceous-
black, apices of tlie segments jjaler ; under surface of body intense black,
legs pale testaceous, oral organs and basal joints of antennae same, remain-
der of antennae dark piceous-l)ro\vn, terminal joint pale toward tip. Head
very highly ])olished, small, distinctly wider than long ; labrum paler, rather
convex ; maxillary palpi rather slender, second joint slightly bent, feebly
narrowed toward base, more tlian twice as long as wide, third nearly as long
as the first two together, narrowed toward base, nearly three times as long
as wide, swollen toward tip which is squarely truncate, fourth nearly two-
thirds as long as the third, very slender, finely acicular, abruptly swollen
and somewhat bulbous toward base ; antennae distinctly shorter than the
head and prothorax together, first joint slender, about as long as the next
two together, second scarcely narrower than the first, nearly twice as long as
wide, oval, third just visibly sIkm tii' than the second, conical, very narrow
at base, as wide at apex as the scc-ond, joints four to ten increasing in width,
the former very sliglitly longer than wide, the latter nearly one-half wider
than long, fourth slightly shorter than the fifth, fifth to tenth equal in
length, eleventh scarcely longer than wide, oval, outer joints slightly com-
pressed. Prothorax widest at one-fourtli the length from the base where
it is one-fointli wider than long ; sides moderately arcuate ; basal angles
broadly rounded ; apex Vi^ry feebly arcuate, two-tiiirds as long as the base,
tbe latter broadly and very feebly arcuate ; disk rather convex, highly
polished, most excessively feebly minutely and transversely strigate, having
on each side at the outer two-thirds two setigerous punctures, round and
rather deeply impressed, the posterior one at the middle, the anterior slightly
nearer the meilian line ; the usual two apical punctures are rather distant
from the margin. Elytra at base scarcely as wide as the pronotum ; sides
very slightly divergent posteriorly and very feebly arcuate; together very

COLEOPTERA. 153

feeV)ly einarginate belihid ; disk depressed, highly polished, narrowly im-
pressed along the suture ; punctures fine, sutural row of eight or nine, discal
row arc-uate toward the suture, of about nine, lateral row of ten, usual row of
fine closely placed punctures along the crest of the upper epipleural margin,
and another of excessively fine punctures along the upper edge of the lower
margin ; surface strigate, slightly more strongly than the pronotum. Abdo-
men at base nearly as wide as the elytra ; sides nearly straight and strongly
convergent ; border strong toward base ; surface broadly convex, highly
polished, minutely and transversely strigate ; each segmpnt rather coarsely
and closely punctate toward base, impunctate toward apex except a row of
punctures along the apical edge ; under surface slightly more closely and
coarsely punctate, not appreciably strigate. Legs long and slender ; middle
and posterior tibiae fimbriate at apex with unequal coarse spines ; femora
with three or four erect coarse spines along the lower edge at tip ; posterior
tarsi slender, first joint but slightly longer than the next two together.
Length 3.5 mm.

PeniLsylvania, near Philadelphia, 1.

According to tlie table given V)y Dr. Horn this species should follow
consors. In inqirisitvs the sides of the pronotum near the apical
angles are strongly margined ; the margin becomes much narrower
toward the base.

Dr. Horn's paper on this genus is rather misleading in regard to
the two species lucidulus and consors, as no mention is made of the
important punctures to be seen on the pronotal disk outside of the
two specified by him ; they are, however, mentioned by Dr. LeConte
in iiis original descriptions.

APOCEI.I.IJS Erichs.

From the marked variations ascribed by Dr. LeConte (Trans. Am.
Ent. Soc. VI. p. 247) to the insects of this genus, it occurred to me
that a revision under better conditions might give rise to a more satis-
factory solution of the difficulty; the following synopsis is the result
of this study. All the characters of the table are taken from males,
and the descriptions are also drawn from the same sex except when
indicated to the contrary.

Our species seven in number may be tabulated as follows : —

Head about equal in width to the prothorax ; sides of the latter arcuate ;
femora generally robust.

Second joint of the antennae equal in length to the third 1. 'bicolor.

Second joint much shorter than the third, the latter more elongated.

Prothorax as wide as long ; antennae rather slender ; abdomen i)iceous-

brown, border becoming narrower posteriorly 2. spliaei'icollis.

Prothorax broader than long; antennae short, nearly black, robust;
al)domen nearly black, border very deep, vertical, very thin, not
gradually decreasing posteriorly 3. cra.SSlC01'IllS>

l.H NORTH AMERICAN

Prothorax longer than wide ; antennae long and slender ; abdomen
nearly black, border not vertical, much less strong, thicker, not

gradually diminishing posteriorly 4. gracilicoriiis.

Head wider than the prothorax which is trapezoidal ; sides of pronutum
sinuate ; femora generally slender.
Penultimate joint of the antennae longer than wide...."). breTipeililis.
Penultimate joint wider than loug.

Antennal joints 7-10 wider than long; epistoma transversely truncate

anteriorly 6. aiialis.

Antennae very mucli shorter and more robust, joints 5—10 wider than
long ; epistoma strongly arcuate anteriorly, semicircular.

7. stilicoides.

For synonymy tlie student is referred to the above-mentioned notes
by Dr. LeConte except tor the iiutliorship of splicericollis, which is
due to Say and not to Ericiison.

1. A. 1>icolor n. sp. — Form moderately robust, depressed, widest across
the aluiomen. Pubescence sparse, semi-erect, fine and very inconspicuous.
Color of head piceous, almost black, under surface somewhat paler ; abdomen
intense black above, dark piceo-fuscous beneath ; remainder of the body, legs
and base of the antennae pale testaceous, antennae infuscate toward tip.
Head moderate, depressed ; sides feebly convergent and rather strongly
arcuate behind the eyes ; truncate behind ; eyes very small, coarsely granu-
lated, moderately pro^iinent, situated at more than twice their length from
the posterior angles ; interocular surface polished, not punctate ; supra-
anteunal tuberculations very prominent, elongated, nearly parallel ; an-
tennae slightly longer than the head and prothorax together, all the joints
longer than wide, very minutely pubescent, basal joint not as long as the
next two together, outer joints twice as robust as the second, eleventii much
shorter than the two preceding together ; labrura broadly and deeply emar-
ginate anteriorly where it is densely ciliate, testaceous in color. Prothorax
slightly wider than long, widest at the middle where it is equal in width to
the head ; sides evenly and strongly arcuate ; base just visibly shorter than
the apex, the former feebly sinuate, the latter very broadly and rather feebly
arcuate ; apical angles broadly rounded, posterior very obtuse and but
slightly rounded ; disk very convex, not setose, polished, not punctate.
Elytra at base just percej)til)ly wider than the head ; sides extremely feebly
divergent posteriorly, sliglitly shorter than the width at base, very feebly
arcuate; together very broadly and feebly emargiuate behind; suture and
scutellum together distinctly longer than the pronotum ; disk very de-
pressed, shining, impunotate. Scuteliuui rather large, triangular, slightly
wider than loug, disk minutely rugulose. Abdominal segments increasing
in width to the fourth, first at base slightly narrower than the contiguous
elytra, fourth much wider, equal in width to the fifth ; surface very depressed,
polished, minutely reticulated, impunctate ; border very strong, nearly erect
on tin; first five segments, abruptly very narrow and inconspicuous on the
remainder, sparsely herissate toward the tip with coarse piceous setae. Legs
rather long, testaceous thioughout ; femora somewhat robust, tibiae very

COI.EOPTERA. 155

slender, tarsi slender, third joint of tlie posterior less than twice as long as
tlie two preceding together.

M(tle. — Sixth ventral segment broadly and roundly emarginate in its
middle three-fifths at apex, edge of the emargination strongly reflexed and
densely fimbriate, paler in color ; the reflexed portion of the edge does not
occu^jy the entire emargination, but abruptly leaves a small portion of the
curve at the ends with the edge not modified. Seventh segment extremely
deeply impressed in the middle four-fifths, sides of the impression in the
form of very thin laminae projecting and acutely angulate posteriorly, where
they converge toward each other, arching far over the emargination. Eighth
segment acutely rounded behind, longitudinally and somewhat sliglitly im-
pressed along the middle of its under surface.

Female. — Sixth segment very broadly and evenly rounded behind through-
out ; seventh very much narrower, acutely rounded behind.

Length 3.2-3.5 mm. Male smaller than the female.

Nebraska, 3.

It is almost impossible to describe the wonderful sexual characters
of" the male so as to convey an entirely lucid idea to one who has
never seen the structure in nature. This species is distinct in its
very marked contrasts of color, the abdomen being very black, and
also by tlie peculiar structure of tlie antennae, in which the second
joint is as long as the third ; in addition to these differences there is
a complete absence of the long coarse setae which bristle upon the
pronotum and elytra of most of the others.

2. A. spliaBricollis (Say). — Form ratlier more slender than in bicolor.
Color of head dark piceo-testaceous ; pronotum slightly paler ; elytra nearly
as dark as the head ; abdomen dark piceous above, piceo-testaceous beneath ;
metasternum much darker than the prosternuni ; legs uniform throughout,
very pale testaceous ; antennae pale testaceous at base, becoming deeply in-
fuscate toward the tip. Pubescence in the form of stiff erect coarse setae,
piceous-black in color and very sparse. Head moderate ; eyes very small,
slightly prominent, situated at more than twice their length in advance of
the posterior angles ; sides behind them slightly convergent and arcuate ;
interocular surface polished, impunctate ; supra-antennal tuberculations
long, strong, parallel, each having a foveate impressed puncture at its
posterior extremity; antennae much longer than the head and prothorax
together, rather slender, second joint much shorter than the third. Pro-
thorax widest at the apical angles where it is as wide as long ; sides thence
very feebly convergent posteriorly and very feebly arcuate ; base transverse
and very feebly sinuate in the middle, apex bioadly and strongly arcuate ;
surface very convex, impunctate and highly polished. Elytra at base
slightly wider than the prothorax ; sides slightly divergent and feebly
arcuate ; together broadly and extremely feebly emarginate behind, almost
transversely truncate ; suture and scutellum together distinctly longer than
the pronotum ; disk highly polished, impunctate except a row of very feeble
distant punctures near the exterior edges. First abdominal segment as wide

l"»r) NORTH AMERICAN

as the contiguous elytra; sides very feebly divergent to the fourth and fifth
segments which are equal in width and but slightly wider than the first;
border erect, very strong toward the base, gradually becoming narrower to
the tip of the sixth where it vanishes ; Surface dejtressed, impunctate, not
reticulated, very highly polislied. Legs rather short ; tarsi extremely slen-
der, third joint of the posterior more than twice as long as the two preceding
together ; claws very long.

Mule. — Characters nearly as in hirolnr, except that the eighth segment is
more deeply and broadly impressed, and the arching laminae of the seventh
nearly meet posteriorly.

Female. — Sexual characters nearly as in hicolor.

Length 2.7-2.9 mm.

Southern States (locality unknown), 1; Capfon and Enterprise,
Florida, 2.

The two Floridan specimens are females, and there are certain
differences to be observed between them and the above-described
tyi)e, viz. : the head is distinctly wider than the pronotum, the elytra
are slightly longer, and the antennae have the terminal joint paler.
As the first of these characters usually belongs to the male, the pro-
priety of placing the specimens with tiiis species may be question-
able, but in the absence of the male it would be useless to attempt a
description.

Longicornis Sachse appears to be identical with this species, the
type in Dr. LeConte's cabinet has the terminal joint of the antennae
slightly paler, the size is somewhat larger, the colors darker, and the
laminae of the seventh ventral segment much more widely separated.

3. A. crassicorilis n. sp. — Form slightly more robust than in sphrtri-
collis. Pubescence of abdomen fine, sub-recumbent and rather plentiful
especially beneath, elsewhere rather sparse with a few rigid setae on the
liead and along the Hanks of the pronotum, but not on the elytra. Color of
head nearly black ; prothorax dark fusco-testaceous ; elytra rather paler,
pieeo-testaceous ; abdomen piceous-black above, scarcely paler beneath ;
antennae testaceous at the base, l)lackisli toward the tip, outer half of
terminal joint very slightly paler ; legs very p\le testaceous, upper surface
of ftuiora rather abruptly castaneous in the outer third. Head moderate,
depressed ; eyes small, rather prominent; sides behind them very feebly con-
vergent and arcuate ; broadly truncate behind ; interocular surface polislied,
impunctate, minutely and conspicuously rugulose near the anteunal tuber-
culations ; the latter very prominent, parallel, gradually becoming extinct
jHtsteriorly, anterior tips slightly paler ; antennae twice as long as the head,
penultimate joints slightly longer than wide but more than twice as robust
as the second, second much shorter than the third, longer than the fourth.
Prothorax robust ; sides parallel and feebly arcuate ; widest in the middle
where it is slightly wider than long; anterior and posterior angles equally
and strongly rounded ; base truncate iu the middle, apex broadly and rather

COLEOPTEKA. 157

strongly arcuate; disk very convex, more so than in splnvricolliK, polished,
impunctate. Elytra at base slightly wider than the pronotuni ; sides feebly
divergent posteriorly, feebly sinuate near the humeri, arcuate toward the
apices, distinctly shorter than the width at base ; broadly and extremely
feebly emarginate behind, edges very slightly divergent at the inner apical
angles ; sutui'e and scutellum together distinctly longer than the pronotum :
disk depressed, polished, impunctate except a row of very feeble distant
punctures near the exterior edge ; color paler along the base and apices.
Scutellum broader than long, rather small, rugulose, angulate behind.
First abdominal segment nearly as wide as the contiguous elytra ; sides
divergent and very feebly arcuate to the fifth segment which is the widest,
and one-fourth wider than the first ; border extremely strong, erect, almost
reflexed, abruptly nearly obsolete on the sixth ; surface depressed, polished,
minutely reticulate, impunctate. Legs rather long ; tarsi slender, third
joint of the posterior slightly less than twice as long as the first two together,
first slightly shorter than the second ; claws long, feebly arcuate, appendi-
culate.

■ Male. — General sexual characters similar to those of the preceding species,
the emargination of the sixth segment is, however, much broader, less strong
and more transverse at the bottom.

Female. — Unknown.

Length 3.0 mm.

F'ort Gai'laiid, Colorado (Schwarz).

ICasily recognized by its very spherical protliorax, thick dark
antennae, and strong abdominal border.

The first joint in one of the posterior tarsi exhibits signs of a trans-
verse lobation, and gives a distinct impression of a 4-jointed tarsus,
althougli this appearance is generally not at all observable.

4. A. gracilicornis n. sp. — Form rather slender. Pubescence very
sparse, setiform, very long and coarse, erect, testaceous. Color of head and
protliorax dark reddish-testaceous ; the same color extends to the base of
the elytra and along the suture, remainder of the elytra piceous ; abdomen
piceous-black, slightly paler and more pubescent beneath; metasternum
dark piceous. remainder of the under surface pale rufo-testaceous ; legs
testaceous, femora much darker in the distal half; antennae testaceous
toward the base, brownish-fuscous toward tip, last joint not paler. Head
moderate ; eyes very small, not prominent ; sides behind them feebly con-
vergent, broadly rounded at the posterior angles ; transverse behind ; inter-
ocular surface smooth, impunctate, polished, having a deeply impressed
foveate piincture near the point of origin of each supra-antennal tubercula-
tion ; the latter rather strong but short ; just in front of this puncture there
is another very small one ; epistoma broadly rounded, sides nearly parallel ;
antennae very long, as long as the elytra, pronotum and one-half the head
together, rather slender, basal joint much elongated, all the joints much
longer than wide, incrassate toward tip, second joint much shorter than the
third. Prothorax just perceptibly narrower than the head across the eyes,
Cont. Part II. 7 January, 1885.

158 NORTH AMERICAN

widest at the middle where it is slightly narrower than long ; sides parallel
and feebly arcnate ; anterior and posterior angles equally and rather broadly
rounded ; base transverse, just visibly sinuate in the middle, apex very
strongly arcuate ; disk almost globular, impunctate, highly polished. Elytra
at base distinctly wider than the prothorax ; sides as in crussicornis ; together
transversely truncate behind, truncation just perceptibly sinuate near the
outer apical angles ; inner angles feebly rounded ; suture and scutellum
together distinctly longer than the prothorax ; disk very depressed, without
trace of punctures or reticulation, highly polished. Scutellum much broader
than long, rather short, strongly granulose. First five abdominal segments
increasing arcuately and very gradually in width, first as wide as the con-
tiguous elytra and rapidly constricted toward the base; segments three to
five almost equal in width, posterior edge of the sixth broadly sinuate dor-
sally ; surface depressed, polished, impunctate, not reticulate ; lateral border
very strong but less so than in the preceding species, abruptly much more
feeble on the sixth segment. Legs long ; femora robust ; tibiae distinctly
arcuate ; third joint of the posterior tarsi twice as long as the first two
together, very slender, first joint much shorter than the second.

Mule. — Sexual characters of the same nature as in the preceding species,
refU'xed arcuate emargination of the sixth segment very strong and more
ar(;uate than in crussicornis: eighth segment less strongly impressed, laminae
of seventh much less convergent behind.

fi'inale. — Unknown.

Length 3.3 mm.

California.

tlasily distinguisiied from crassicorni's by its much lon<];er and more
slender antennae and le.ss strongly developed abdominal border; from
spha-ricollis it differs in the antennae, conformation of the abdominal
border, much blacker abdomen, size and structure of the pronotum
wliicli in splicer icoll Is is gradually, though very feebly narrowed
posteriorly.

5. A. "brevipennis n. sp. — Form rather slender. Pubescence sparse
and fine, coarser and more herissate on the abdomen, testaceous. Color of
head, prothorax, elytra and first five segments of the abdomen rather pale
reddish-testaceous ; abdomen and elytra slightly darker than the head, last
three segments dark piceous-brown ; under surface and legs yellowish-testa-
ceous, except the metasternum which is darker ; antennae pale testaceous,
almost uniform throughout, terminal joint slightly paler than the penulti-
mate. Head robust, dejiressed ; eyes very small, about three times their
length from the posterior angles, very slightly prominent ; sides behind them
nearly parallel and strongly arcuate ; broadly and transversely truncate
behind and rather strongly sinuate in the middle; upper surface highly
polished and impunctate; supra-antenual tuberculations rather strong, much
elongated, rather strongly convergent posteriorly; between them and before
the middle of the disk there is a small well-marked puncture; punctures
at the points of origin wanting; antennae slightly shorter than the head,

COLEOPTEKA. 159

prothorax and elytra together, all the joints elongated, basal joint as long as
the next two together, second shorter than the third, eleventh nearly cylin-
drical. Prothorax small, much narrower than the head, widest at the apical
angles where it is distinctly broader than long ; sides feebly convergent
posteriorly, sinuate in the middle ; anterior angles acutely rounded, poste-
rior very broadly so ; apex broadly and moderately arcuate, base truncate
and just perceptibly sinuate in the middle; disk highly polished and im-
punctate, very convex, more so anteriorly than posteriorly. Elytra at base
distinctly narrower than the head and slightly wider than the prothorax ;
sides feebly divergent posteriorly, much shorter than the width at base,
evenly and feebly arcuate ; together broadly, angularly and extremely feebly
emarginate behind ; inner apical angles not rounded, outer very acute and
well-marked ; suture and scutellum together equal in length to the protho-
I'ax ; disk highly polished and impunctate. Scutellum very small, rounded
behind. Abdonninal segments increasing arcuately and gradually in width
to the fourth which is very slightly wider than the fifth, first as wide as the
contiguous elytra ; border very strong, thin, nearly vertical, slightly less
strong on the fifth, feeble on the sixth segment ; surface highly polished
and impunctate. Legs slender, uniform in color tViroughout; tarsi slender ;
claws moderately long.

Mule. — Sexual luodifications of the same character as in the preceding
species, the edge of the emargination of the sixth segment being much less
strongly reflexeil, longer, more feeble in curvature, and having the emargina-
tion of the membranous portion much stronger and less transverse ; seventh
segment deeply impressed, with no appearance of the lateral arched laminae,
the edges of the impression being in the form of rounded ridges ; eighth
deeply impressed, acute at tip.

Female. — Unknown.

Length 3.0 mm.

Louisiana, 1.

Tlie above type is very distinct in all of its characters and cannot
be confounded with any other species of the genus.

6. A. analis Lee. — Form somewhat robust. Entire body, legs and base
of the antennae pale testaceous ; head more reddish ; last three segments of
the abdomen above and beneath and the metasternum piceous. Pubescence
consisting of a few widely scattered long erect setae which are more sparse
on the head and pronotum. Head rather large, depressed, moderate in size ;
eyes scarcely prominent; sides behind them feebly convergent and arcuate;
broadly truncate behind ; posterior angles broadly rounded ; upper surface
highly polished and impunctate ; supra-antennal tuberculations rather nar-
row, strong, elongated and parallel ; surface between them feebly and evenly
coiivex, having in the middle an elongated and prominent puncture; no
puncture at the posterior extremities of the tuberculatijns ; antennae but
very slightly longer than the head and prothorax together, slightly infus-
cate toward tip, basal joint scarcely as long as the next two together, second
much shorter than the third which is slender and nearly twice as long as the
fourth, joints rather abruptly thicker after the fourth, eleventh most robust,

160 NORTH AMKRICAN

obtns<^ at tip. Prothorax but slightly narrower than the head, widest at the
apex where it is very sliglitly wider than long ; sides very feebly convergent
posteriorly, feebly sinuate just behind the middle ; apical and basal angles
nearly equally and rather broadly rounded ; apex broadly and evenly arcn-
ate, base truncate, feebly sinuate in the middle ; disk rather strongly convex,
very slightly more so than tlie head, highly polished and impunctate. Elytra
at base as wide as the head and distinctly wider than the contiguous pro-
thorax ; sides moderately divergent posteriorly, nearly straight near the
humeri, strongly arcuate near the apices, slightly shorter than the basal
widtii ; together broadly and just perceptibly emarginate behind ; inner
apical angles feebly rounded ; suture and scutellum together nearly one-
third longer than the pronotum ; disk highly polished and impunctate, with
a slight indication of very faint sutural striae which become stronger and
widely divergent at the scutellum. Scutellum transverse, short, triangular.
Abdominal segments increasing arcuately and rather gradually in width,
lirst slightly wider than the contiguous elytra; border strong, nearly verti-
cal, thin, becoming narrower posteriorly, suddenly very strongly convergent
on the sixth segment ; surface highly polislied and impunctate. Legs n)ode-
rate in length, slender throughout, not clouded with darker tint.

Mule — Emargination of the sixth segment one-half as long as the edge,
strong, broadly angiilate at the bottom, edge scarcely reflexed except toward
the ends of the emargination which are produced backward in the form of
two long parallel porrected horns, the latter concave on their inner faces,
the concavity extending under the emargination ; the horn-like projections
are membranous and very thin ; the thin membrane is also broadly and
roundly emarginate. Seventh segment deeply impressed in the middle,
margins of the impression broadly rounded, not having tliin laminae, im-
pression extending without break and with equal intensity to the eighth
segment which is acute behind.

Female. — All the segments normal.

Length 2,S-3.0 mm.

Calilorniu and Arizona, 11.

The above description was taken from Dr. LeConte's type which
is a female; the male differs slightly in its larger head, in the absence
of the median puncture, and in the slightly shorter elytra ; it also has
the anterior angles of the pronotum distinctly more acutely rounded
tlian tlie posterior. It also differs in tlie antennae, the basal joint of
wliicli is fully as long as the next two together and is much more
strongly clubbed.

The very singular sexual characters of this species are different
from tliose of any other in the genus and will identify it at once.

It will be seen that besides the characters given in the table for
separating the species into two divisions according to the size of the
head, shape of tiie jjronotiim, and siiape ot the femora, there is a fourth
of perhaps more importance tlian any of tliem, viz. : tlie lack of the

COLEOPTERA. 101

arclied laminae of the seventh segment in the males ot the second
division.

7. A. stilicoides Lee. — Form rather slender ; castaneous, abdomen
darker. Head and prothorax glabrous, strongly and minutely granulose,
almost opaque ; elytra and abdomen clothed rather densely with very short
fine recumbent pubescence, less strongly ga-anulose, feebly shining. Head
robust ; sides parallel and arcuate behind the eyes ; posterior angles acutely
rounded ; upper surface longitudinally impressed near the very short and
prominent antennal tuberculations, just behind which there is a very small
and distinct puncture on each side ; in the middle of the disk there is a very
short and somewhat feeble canaliculation ; epistoma strongly produced and
arcuate anteriorly ; antennae very short and robust, infuscate toward tip,
last joint short, most robust, conoidal. Prothorax very small, trapezoidal,
widest at the apical angles ; sides nearly straight ; disk scarcely more convex
than the head ; base squarely truncate ; anterior angles rounded, posterior
obtuse and very slightly rounded. Elytra at base wider than the prothorax ;
sides rather strongly divergent posteriorly, sinuate near the humeri, feebly
arcuate toward the apices, slightly shorter than the width at base ; almost
transversely truncate posteriorly ; much longer than the prothorax. Scutel-
lum very small, broadly rounded behind. Abdominal segments rapidly and
arcuately increasing in width ; border very strong. Legs and tarsi slender,
third joint of the latter much less than twice as long as the two preceding
together.

Male. — Emargination of the sixth segment very small, scarcely one-eighth
as wide as the segment, feebly curvate, edge very narrowly and feebly re-
flexed ; seventh and eighth segments scarcely modified, the former slightly
flattened.

Female. — Unknown.

Length 2.0 mm.

Florida (Baldwin and Enterprise), 2.

The characters of this species differ so strikingly from those of any-
other, that it may after careful dissection necessitate the creation of
a subgenus. The feeble sexual characters, narrow and prominently
arcuate epistoma, granulate surface, and short terminal joint of the
maxillary palpi are characters foreign to the remainder of the genus.
These may be accompanied by others, of a structural nature in the
oral organs, of more positive value.

The longitudinal elevation at the anterior portion of the pronotum
is excessively feeble, and is obscurely triple, the ridges being sepa-
rated by very broadly rounded feeble impressions. The elytra and
abdomen are not punctulate, but obsoletely granulate. The sexual
characters are not exposed to view in Dr. LeConte's type, the other
specimen is a male and is the one above described.

162 NORTH AMERICAN

PTILIUMT Erichs.

P. flin^icola n. sp. — Form elongated, nearly as in Collnni. Color above
piceou.s-ljhuk, iieneath very slightly paler ; oral organs, legs and parts of
the prosternum pale reddish-flavate ; antennae black, basal joints paler.
Pubescence rather abundant, cinereous, short. Head two-thirds wider than
long, sub-triangular ; sides distinctly sinuate at the antennae ; eyes large,
rather prominent ; interocular surface shining, very feebly finely and evenly
tuberculate ; antennae slightly longer than the head and prothorax together,
slender, third joint narrowest, two-thirds as long as the fourth, joints four
to eight cylindrical, nearly equal, ninth slightly thicker, tenth and eleventh
much more rol)ust, slightly flattened, eleventh distinctly longer and slightly
more robust than the tenth ; basal joints equal, slightly elongated, dark
flavo-testaceous. Prothorax widest very slightly behind the middle where
it is slightly wider than the head, and three-fourths wider than long; sides
evenly and rather strongly arcuate ; apex slightly shorter than the base, both
very feebly broadly and equally arcuate, the latter feebly sinuate in the
middle ; anterior and posterior angles rounded ; disk distinctly longer than
the head, rather strongly convex, evenly and rather coarsely tuberculate,
tubercles round, flattened and generally distant by their own widths. Scu-
tellum rather large, triangular, roughly asperate. Elytra at base very
slightly narrower than the pronotum, widest at the middle where they are
slightly wider than the same ; sides evenly and distinctly arcuate ; together
somewhat abruptly and obtusely rounded behind ; inner apical angles feebly
rounded ; disk two-fifths longer than wide, convex, apex scarcely paler,
evenly strongly and coarsely asperate, having almost an imbricated appear-
ance, very slightly more than twice as long as the pronotum. Legs some-
what slender, translucent: tarsi excessively slender; posterior coxae well
separated. Length 0.4;') mm.

Pennsylvania, near Philadelphia, 27.

Common in decaying funsri fjrowinjj amonjist fallen leaves in tiie
woods. The abdomen in all tlie specimens wliieli I have collected is
stronjjly retracted, so that it comes very far from attaining even the
tips of the elytra. Tiie species appears to approximate very closely
to P. CoUani Miikl., and differs as far as 1 can determine without
having seen specimens of that form, in its mucii smaller size, rela-
tively longer protliorax, black antennae, and coarser sculpture. On
comparing it with the figure of CoUani given by Mr. Matthews, the
following difi'erences are observable : —

Tlie elytra in the figure are nearly three times as long as the pro-
notum and tiie apex of each is more bioadly rounded, especially at
the inner apical angles; the pronotum appears to be nearly twice as
wide as long, and its disk is seen tti \n\ nnu'h more finely antl closely
tuberculate.

I have selected one of the larger specimens for measurement, and
many of tliem are scarcely more than 0.38 mm. in length.

COLEOPTEUA. 103

P. triincatuin n. sp. — Form short, broad; sidos nearly parallel;
rather depressed. Color throughout piceous-hlack ; pubescence sliort, not
dense, sericeous, pale fulvo-cinereous ; integuments polished. Head large,
twice as wide as long ; anterior margin strongly arcuate between the an-
tennae; eyes large, prominent; interocular surface broadly convex, smooth,
excessively finely punctulate at the bases of the hairs ; antennae distinctly
longer than the head and prothorax together, strongly geniculate, black
except the two basal joints which are dark piceous-brown ; second joint
more than twice as long as wide, cylindrical, third much more slender,
shorter than the fourth, joints four to eight gradually decreasing in length
and very slightly increasing in thickness, ninth distinctly thicker andJonger
than the eighth, joints of club increasing rapidly in length and thickness,
eleventh somewhat abruptly enlarged at the base, much elongated, nearly as
long as the two preceding together, somewhat pyriform. Prothorax widest
just behind the middle, where it is about one-half wider than long and but
very slightly wider than the head ; sides moderately arcuate ; apex very
slightly sliorter than the base, the former broadly and extremely feebly
arcuate, the latter transverse and extremely feebly sinuate in the middle ;
posterior angles obtuse and very slightly rounded ; disk moderately convex,
smooth, extremely narrowly margined at the base and sides, polished; hairs
growing from very minute ev^enly distributed and sparse punctures. Scu-
telluni rather large, finely asperate, equilatero-triangular. Elytra at base as
wide as the contiguous pronotum, widest at two-thirds the length posteriorly,
where they are conjointly slightly narrower than long and as wide as the
pronotum ; abruptly truncate behind, outer angles rounded, inner extremely
slightly so ; disk moderately convex, finely evenly irregularly and somewhat
closely asperate, shining, about four-fifths longer than the pronotum. Abdo-
men extending slightly beyond the elytra, very short in comparison with the
metasternum. Legs rather robust ; femora reddish-brown ; tibiae and tarsi
paler and more flavate ; posterior coxae strongly laminate, rather widely
separated ; epipleurae of pronotum finely and distinctly rugulose. Length
0.(3 mm.

Pennsylvania, near Philadelphia, 1.

Found in the same locality as in the preceding. It appears to
resemble P. Knnzei slightly in form. It is as far as I can determine
very distinct by reason of the large eyes, very broad head, polished
integuments and more particularly in the curious structure of the
antennae because of which it may have to be generically separated.

TRICHOPTERYX Kirby.
T. radicola n. sp. — Form very robust, convex. Color above black;
legs, coxae, oral organs dark reddish-testaceous ; antennae piceous-black,
basal joints testaceous ; pubescence very sparse, recumbent, short, pale
piceo-cinereous. Head large, much more than twice as wide as long; sides
convergent and deeply sinuate over the bases of the antennae ; anterior
margin truncate in the middle, rounded at the anterior angles ; interocular
surface evenly convex, highly polished and impunctate ; eyes rather small,

104 NORTH AMERICAN

not prominent, more visible from beneath than above ; labrum rather large,
concealed from above, strongly inllexed, wider than long, truncate at tip
where it bears four or five short setae ; antennae about as long as the width
of head, rather slender, club moderate, basal joint longer and more robust
than the second. Prothorax large, just visibly wider at apex than the head,
four-fifths wider posteriorly, widest slightly before the base where it is about
twice as wide as long ; anterior margin transverse, posterior broadly emargi-
nate, transverse and straight in the middle of the emargination, sinuate
toward the posterior angles which are rather strongly produced and very
acute; disk very convex, polished, very finely feebly and transversely stri-
gose. itnpunctate except the rather conspicuous pores for the reception of the
bulbous roots of the hairs. Scutellum large, triangular, wider than Ion";,
asperate. Elytra widest in the middle where they are distiiu-tly iKirrower
than the pronotum ; sides parallel and just visi))ly arcuate; conjointly
abiuptly truncate behind, truncation broadly arcuate ; inner apical angles
very slightly rounded ; disk but very slightly longer than wide, about two-
fifths longer than the pronotum, moderately convex, rather coarsely some-
what strongly and distantly asperate, shining. Legs rather short ; femora
robust, compressed ; tarsi extremely slender ; anterior coxae large, nearly
globose ; anterior tibia having at the tip several fine slender interior spines.
Abdomen very short, basal joints concealed under large transverse lamellar
extensions of the posterior cttxae ; pubescence long and fine. Length 0.8 mm.

Milf'ord, Delaware, 1.

I found this spec-imen running amongst the roots of" grass in a dense
turf. It appears to be distinct troni ifhibricuUls, the only described
species with which it can be compared, as in that species the elytra
are widest behind the middle and are shorter than the head and pro-
thorax together, while in the present form the elytra are widest if
anything before the middle and are slightly longer than the head and
prothorax together; the antennae are fiavate in f/hibn'col/is wliicl^ is
not the case in rndicola. The sides of the prothorax are much less
arcuate than in the figure of glahriruIUs given by Mr. iNIatlhews, and
the sides of the elytra are much more convergent posteriorly through
the apical half.

The abdomen in the type is very much drawn up so that the tip
scarcely attains the elytral apex, and the light shining through the
lateral portions of the latter is of a |)ale flavate color ; I do not think,
however, that the tip is actually paler. The same translucency is
seen in the thin posterior angles of the pronotum, whi(;h are conse-
(pu-ntly paler and fulvous.

T. fllllgiiillH n. sp. — Form robust, oldong ; sides parallel ; rather con-
vex. Color above ])iceous-black, elytra becoming rufo-piivous toward the
tips which are margined with fulvous ; under surface of the alidomen, legs,
coxae, oral organs, and basal joints of the antennae rather dark piceo-testa-

COLEOPTERA. 165

ceous ; meso- and metasterna black ; remahider of antennae dark piccous-
brovvn. Pubescence rather abundant, sericeous, cinereous. Head moderate,
twice as wide as long ; eyes moderate ; interocular surface ratlier feebly con-
vex, polished, inipunctate except the pores for the entrance of the bulbous
roots of the hairs; antennae slightly longer than the pronotum, first two
joints nearly equal in length, third extremely small, scarcely one-half as
long as the fourth or fifth, joints of club increasing almost uniformly and
rapidly in length and width, strongly compressed. Prothorax widest at one-
fourth its length from the base where it is four-fifths wider than long and
nearly twice as wide as the head, nearly one-half wider at base than at
apex ; lateral edges nearly straight and strongly divergent from th^ apical
angles for two-thirds the length, where they become abruptly very arcuate
and thence convergent to the posterior angles, the latter very moderately
produced, right and very slightly rounded ; base transverse, broadly and
just visibh' emarginate along the base of the scutellum, rather strongly
sinuate laterally ; disk very convex, flanks slightly inflexed near the lateral
edges, shining, covered with very minute asperities arranged in transverse
wavy rows, interspaces minutely reticulated. Scutellum rather large, slightly
wider than long, triangular, acute, sides straight, surface transversely aspe-
rate. Elytra at base very slightly narrower than the pronotum ; sides nearly
parallel and almost straight, very feebly convergent jjosteriorly, conjointly
abruptly truncate behind, lateral angles broadly rounded, truncation straight
at the inner angles ; disk just visibly longer than wide, distinctly longer
than the head and prothorax together, one-half longer than the pronotum,
rather convex, more strongly and closely asperate than the pronotum, trans-
verse rows only distinct near the suture, interspaces feebly rugulose and
confusedly reticulate, shining. Legs well developed, ratlier long; anterior
coxae large, contiguous, globose ; posterior somewhat widely sejjarated, two-
thirds wider than long, very strongly arcuate behind interiorly, not attaining
the elytra and leaving a large i:)ortion of the first venti-al segment exposed at
the sides, although extending beyond the first segment longitudinally, very
thin and lamellate. Length 0.(i5— 0.8 mm.

Jenkintown, near Philadelphia, 3.

Occurs in decaying fungus together with the two species of Ptilium
previously described. The posterior coxae differ very greatly in form
from those (tf radicola where they are oblicjuely truncate behind and
extend with almost undiminished length from their line of mutual
contiguity in the middle to the elytra at the sides, concealing tiie
entire first ventral segment and, near tlie middle, portions of several
others. In funginus the anterior coxae are larger and much more
globose, and the eyes are very large and prominent beneath ; from
their posterior limits to the posterior limits of the buccal fissure there
is a narrow strong carina.

This species appears to resemble diffinis Matt., but from the direct
statement made by Matthews in reference to (he pronotum, "orna-
mented with small tubercles irregularly arranged," it ai)pears to be

166 NOKTII AMERICAN

distinct from it. Tlie ornatnentation of the pronotum in fnnginns
does not consist of tubercles round and distinct as in longipennis, but
rather of very minute acute asperities at the roots of the hairs, and
in all my specimens these have a distinct arrangement in transverse
wavv lilies, more especially toward the middle of the disk.

T. loilgipeiinis n. sp. — Form ratlier elongated ; sides parallel. Color
above piceoiis-blafk throughout ; legs, basal joints of the antennae, coxae,
and oral organs dark piceo-rufous ; remainder of antennae and under surface
piceous-black ; pubescence rather sparse, fine, slightly sericeous, piceo-cine-
reous. Head distinctly more than twice as wide as long, nearly transversely
truncate anteriorly ; surface smooth, strongly shining, minutely reticulated,
excessively minutely asperate at the roots of the hairs ; eyes ratlier large
and prominent ; labrum minute, very strongly inflexed, strongly rounded
anteriorly ; antennae nearly as long as the head and prothorax together,
slender, third joint two-tliirds as long as the fourth, remaining joints equally
thick, club large, very strongly compressed, eighth joint shorter and wider
than the seventh, last three joints abruptly much wider, nearly equal in
width, rapidly increasing in length. Prothorax widest slightly in advance
of tlie base, where it is about twice as wide as long ; base scarcely one-third
wider than tiie apex ; sides evenly divergent, evenly and rather feebly
arcuate throughout their length ; posterior angles not at all produced,
slightly obtuse and very slightly rounded ; base and apex transverse and
nearly straight ; disk strongly convex, very slightly inflexed at the sides,
finely rather strongly and evenly tuberculate, tubercles round, flattened,
without regular arrangement, interspaces strongly rugulose, shining ; finely
maigined along the sides ; just inside the posterior angles there is a very
feeble impression. Scutellum moderate, triangular, very slightly wider than
long, finely asperate. Elytra just visibly narrower than tht; pronotum ; sides
jiaialli'l and nearly straight, obliquely truncate behind ; exterior angles very
broadly rounded, interior distinctly rounded ; disk moderately convex, about
one-fifth longer than wide, two-thirds longer than the pronotum, finely and
feebly asperate, the points being arranged in oblique and irregular rows near
the suture, also finely and strongly rugulose and reticulated, shining. Legs
well developed ; anterior coxae globose and prominent, posterior lamellate,
strongly arcuate posteriorly, most strongly so near the raiddU of each, not
attaining the elytra. Last segment of the abdomen equal in length to the
three preceding together. Length 0.9 mm.

Philadelphia, Fairmount Park, 3.

Found in fungous earth under fallen leaves in a wooded ravine. It
differs from fnnginns in its more elongate narrow form, in the nature
of the pronotal sculpture, and very markedly in tiie nature of tlie sides
and posterior angles of tlu^ pronotum ; the posterior coxae are sligiitly
longer and more regularly arcuate In-hind. The antennal club is so
strongly compressed, that viewing it from above tlie antenna a|)pt'ars
to be attenuated and without a vestige of club; laterally, however,
the club is seen to be unusually strong.

COLEOPTERA. 1G7

In niakinf; the statement tluit the posterior anghis of the pronotnin
are riglit or obtuse in tliis and other species, the angle is viinved not
from above but in a line perpendicular to the plane of the angle.

CRYPTAIWORPHA WoU.

C HlllJtoardi n. sp. — Form nearly as in Desjcirdensi, depressed. Color
of head and prothorax dark rnfo-testaceous, that of th« elytra paler and
more flavate, the latter with a rather small oval discal spot at tlie scntellum,
and, at the posterior two-thirds a broad transverse anteriorly arcuate and
irregular band not attaining the sides, both of blackish-castaneous : under
surface and legs pale rnfo-testaceous ; antennae at base dark rufo-testaceous,
joints seven to ten dark-fuscous to piceous-black, eleventh joint paler, testa-
ceous. Pubescence of head and prothorax excessively fine, short and sparse,
almost invisible, that of elytra rather short, sub-recumbent, pale yellowish-
cinereous and rather dense, arranged serially. Head much wider than long,
squarely truncate anteriorly at the epistomal suture ; eyes large, very
prominent, nearly hemispherical, extremely coarsely granulated, lenses very
convex and conspiciious ; interocnlar surface nearly flat ; apical angles
rounded ; on each side a strong very feebly sigmoid groove extends from the
apical margin to a point nearly opposite the middle of the eyes ; disk
strongly shining, ratlier coarsely evenly and feebly punctate ; epistoma
slightly wider than long, transversely truncate anteriorly, apical angles
right and not at all rounded, sides extremely feebly divergent posteriorly
and nearly straight, surface feeble convex and rather abruptly declivous
from the epistomal suture which Is very strongly marked ; labrum more
than twice as wide as long, broadly and very feebly sinuate anteriorly,
angles rounded, sides very feebly divergent posteriorly ; antennae as long
as the head and prothorax together, basal joint robust, sub-oval, nearly
twice as long as wide, second much narrower, slightly longer than wide,
third to sixth nearly eqiial in length, one-half longer than the second, sub- -
equal in thickness, slightly narrowed toward base, the latter very slightly
wider at tip, seventh slighily shorter, distinctly broader, slightly longer
than wide, truncate at base and apex, sides strongly convergent toward base
and feebly sinuate toward the basal angles, eight to ten sub-equal, as wide
as long, successively slightly broader at base, sides and apices as in the
seventh, eleventh two-thirds longer than wide, abruptly constricted toward
the tip which is produced in an oblique narrowly rounded process ; last joint
of the maxillary palpi slender, cylindro-conical, nearly three times as long
as wide ; under surface strongly and coarsely punctate. Prothorax as wide
as the head ; sides parallel and very feebly sinuate in tlie anterior half, then
very feebly convergent and straight ; apical angles rather acutely rounded ;
apex and base broadly equally and rather feebly arcuate ; disk one-fourth
longer than wide, depressed above, roundly and abruptly declivous at the
sides, shining, rather densely and evenly punctate, and minutely granulose,
broadly impressed just before the base. Scutellum transverse, rounded be-
hind. Elytra at base broadly rounded, one-third wider than tlie pronotum ;
sides parallel and straight for two-thirds the length from the humeri, then

168 NORTH AMERICAN

TOoderat«'ly convergent ; disk obtusely rounded at the unmediate apex, two
and one-half times as long as wide, nearly twice as long as the head and
prothorax together, nearly Hat above, strongly declivous near the sides
which are narrowly reflexed, shining, very translucent, punctato-striate ;
punctures round, deeply impressed, closer in the rows than the width of
the intervals between the latter, with a short scutellar row ; humeral angles
rounded. Legs rather long ; femora strongly swollen ; tibiae slender ; tarsi
short, robust, slightly dilated, clothed beneath with very dense pale setae,
the setae bulbous at tip ; penultimate joints very strongly bilobed. Abdo-
minal segments decreasing in length posteriorly, finely and sparsely punc-
tate, minutely strigato-granulose ; pro-meso- and metasterna extremely
coarsely deeply and ratber closely punctate, the former i>roduced posteriorly
between the coxae in a long process squarely truncate at tip and strongly
narrowed toward base, with the ajjical angles acute and the sides bisinuate.
Length 4.0-4.5 mm.

Crescent City, Florida.

The genus Cryptamorpha is evidently distinct from Psammoecus
altliongh often confounded with it, the two genera being amply dis-
tinguished by tlie cylindrical terminal joint of the maxillary palpus in
the former and its triangular form in tiie latter. The present species is
very interesting, bearing a I'emarkable resemblance to C Desjardlnsi
whicli is said to be cosmopolitan in its range, and yet differing most
remarkably in the structure of the epistoma and Uibrum, and especially
in the terminal joint of the antennae. It was found abundantly at
one isolated spot in Florida by Mr. H. jG. Hubbard, who informs me
that it has a most deceptive resemblance to an insect of the same
genus described by Braun from New Zealand. As two local species
occurring in such antipodal and limited regions must almost neces-
sarily be distinct, it gives me great pleasure to dedicate the above-
described form to its discoverer.

KIIIZOPIIAGUS llerbst.

R. procerus n. sp. — Form elongate, rather strongly depressed ; sides
parallel ; color piceous-black to dark brownish-testaceous, legs and autennal
club slightly jtaler ; integuments glabrous and polished. Head distinctly
longer than wide, widest across the eyes ; the latter are small, rather promi-
nent, and finely granulated, situated at the middle of the sides whicli, bi'liind
them, are feebly convergent to the base and distinctly sinuate ; sides of the
front very slightly more strongly convergent ; epistoma ratber strongly pro-
duced, narrowly sinuate in the middle anteriorly, angles broadly rounded ;
interocula*' surface feebly convex, very feebly and minutely sub-granulose,
finely, evenly and not strongly punctate, punctures distant by about three
times their own width ; mandibles short and robust, external outline semi-
circular, apex very acute, inner tooth minute, near the apex ; antennae
much shorter than the liead, first joint robust, slightly longer than wide,

COLEOPTKRA. 169

oval, as long as the next two together, second small, suh-globular, third
naiTow, elongate, as long as the next two together, joints three to nine equal
in width, club strong, slightly longer than wide, oval, very abriijit, last
joint spongy, with several rings of pubescence. Prothorax widest at one-
third its length from the apex where it is scarcely perc-ptibly wider than at
the apex and very slightly narrower than long ; sides very feebly converg(!nt
toward the apex and base, straight ; apex broadly and feebly arcuate, angles
obtuse and very slightly rounded ; base transverse in the middle, angles
broadly rounded ; disk broadly convex, narrowly margined along tlie sides
and base, finely and loosely punctate, punctures much larger and more
elongate-oval in the middle portion. Scutellum small, transverse, semi-
circularly rounded behind. Elytra at base broadly emarginate and as wide
as the pronotum ; sides parallel and feebly arcute for two-thirds the length
from the base, thence gradually convergent to the tip, each elytron narrowly
but obtusely rounded behind ; together leaving a small pubescent portion of
the abdomen exposed behind them ; disk striate ; striae fine and feebly
impressed, punctate, punctures fine, round, rather deeply impressed, and
very closely placed in the series ; intervals feebly convex, polished, very
faintly and minutely sub-reticulate ; the sutural interval alone has a row of
very minute and very widely spaced punctures, and the sutural stria con-
tinues with equal depth around the apex of each elytron, being continued
anteriorly as the marginal stria ; humeri prominent, acutely rounded.
Abdomen finely punctate. Legs short and slender ; posterior tarsi very
slender, last joint much longer than the preceding together; claws slender,
slightly dilated at base. Length 3. 2-3. 6 mm.

Arizona (Morrison), 4.

Tlie prosternum and its side pieces are strongly and almost equally
punctate ; the metasternum is punctate througliout, but mucli more
tinely so in the middle. The first segment of the abdomen is as long
as the next three together, second slightly longer than the third, the
latter as long as the fourth, fifth slightly longer than the second and
third togetlier, small additional segment very short, broadly arcuate.
The species should be placed near brunneus Horn ; the iirst segment
of the abdomen is not smooth in the middle, as is mentioned in the
description of the latter, but is uniformly and finely punctate through-
out.

MOi\OCREPIDIUS Esch.

M. fillitiinilS n. sp. — Form rather robust: sides parallel. Color black,
narrow indefinitely clouded median pronotal vitta dark rufous, posterior
pronotal procesjses very slightly paler, also narrowly along the lateral edges
of the prothorax, under surface black except narrowly along the edge of the
prothorax, more broadly behind where it includes the under surface of the
prosternal processes, legs brownish-flavate, antennae slightly paler toward
base, becoming dark fuscous, palpi paler ; pubescence short, recumbent, fine
and dense, very conspicuous, pale brownish-flavate, pubescence of abdomen

170 NORTH AMERICAN

extremely dense, that of prosternura much more sparse. Head three- fonrths
wider than long ; front moderately convex, apical margin very broadly
rounded, narrowly sinuate at the sides before the eyes; the latter rather
large and prominent ; surface finely and evenly punctate, punctures round,
perforate, distant by about their own widths, interspaces nearly flat, shining ;
antennae as long as the head and protliorax together, basal joint strongly
flattened, somewliat lunate, about two-thirds . longer than wide, scarcely
longer than tlie next two together, second not one-half longer than wide,
about two-tliirds as long as the third, third scarcely perceptibly shorter than
the fourth and distinctly longer than the fifth, outer joints slender, one-hall
longer than wide, narrowed almost equally toward base, eleventh very
slender, finely acuminate at tip. Prothorax slightly wider than the medial
length ; sides nearly parallel and very feebly convergent in the anterior
third, broadly and feebly arcuate, broadly and rather stronglj' sinuate along
the exterior edges of the basal processes, the latter slightly projecting
laterally, very strong and acute, narrowly carinate internally and above ;
disk very strongly convex, rather coarsely punctate, punctures deep, the
larger separated by much more than their own widths, intervals flat, polished,
sparsely and much more finel}' punctate ; apex from above broadly and ex-
tremely feebly emarginate, about four-fifths as long as the width between the
apices of the basal processes. Scutellum longer than wide, broadly rounded
behind, sides straight, densely pubescent. Elytra as wide as the pronotum ;
sides parallel and extremely feebly arcuate for two-thirds the length from
the base, thence gradually convergent, ajiex obtusely rounded; disk three-
fourths longer than the head and prothorax together, much less convex than
the latter, about twice as long as wide, narrowly and deeply striate ; striae
distantly finely and scarcely perceptibly punctate, intervals very feebly
convex, densely minutely and rather evenly punctato-asperate, shining ;
humeral angles obsolete ; each elytron acutely rounded at base, lateral
portions within the processes of tlie ]>ronotum feebly sinuate ; striae termi-
nating before reaching the base. Abdonninal segments veiy finely and rather
closely punctate, first four sub-equal in length. Legs rather short, pubes-
cent; tibiae fimbriate externally along the entire edge with a double row of
sliort equal rather distant spinules. Length (i.2 mm.

Cape May, New Jersey, 1.

The basal segments of the abdomen have a small discal impression
at each side. The S[)ecies is distingiiisiiable from OKritfis by its much
more robust form, more convex and shorter pronotum wliicii is less
densely punctate, and by its much more dense and conspicuous pubes-
cence, espiicially of the elytra and alidomen. In coloration and struc-
ture of the sculellum the two species are entirely different.

IIRASTEICICS Esch.

D. fretus n. sp. — Forni very elongated, elliptical. Head black, protho-
rax same except the posterior angles and in their vicinity, and also a small
spot near the apjcal angles which are pale yellowish-testaceous, elytra of the

COLEOPTERA. 171

latter color except a broad irregular transverse band at the posterior thinl
and tlu-ee small sijots near the base, one on the suture beliind the scutellum,
and one on each elytron nearer the suture than the exterior edges and at
one-third the length from the base, all of black ; the posterior band does not
attain the extreme margins with its full color but is very narrowly paler
along the lateral edge, it is deeply emarginate anteriorly on the suture and
is very strongly and narrowly produced along tlie suture posteriorly, becom-
ing finely attenuated and reaching the extreme tip, but with a slight paling
of the color ; epipleurae very pale ; under surface black except a small poste-
rior portion of the prosternum and the apical portions of the last venti-al
segment which are paler ; legs very pale tiavate throughout ; antennae pale
and very uniformly rufo-flavate throughout, palpi same ; pubescence short,
rather sjiarse and coarse, pale flavate in color ; integuments polished. Head
scarcely one-half wider tiian long; front feebly and evenly convex through-
out, very strongly coarsely and deeply punctate ; punctures round, distant
by scarcely more than their own widths, perforate, interspaces flat ; apical
margin very broadly rounded, sides feebly sinuate near the eyes ; labrum
coarsely and deeply punctate ; antennae as long as the head and pronotum
together, basal joint nearly three times as long as wide, sub-cylindrical, as
long as the third and fourth together, second slightly elongated, two-thirds
as long as the third which is narrowed toward base, third much shorter than
the fourth and very slightly shorter than the fifth, fifth to tenth sub-equal,
slightly compressed, sub-triangular, much longer than wide, symmetrical
internally and externally, eleventh more than twice as long as wide, having
a broadly oval terminal process. Prothorax having the sides almost parallel
from the basal angles to one-fourth the length from the apex, very feebly
arcuate and almost imperceptibly sinuate along the basal portions ; apex
transverse, fully five-sixths as long as the extreme width across the tips of
the basal processes ; the latter much longer than wide at base, very acute,
narrowly and strongly carinate ; basal margin bro^idly arcuate at the bottom
of the emargination ; disk medially distinctly longer than wide, very coarsely
and evenly punctate ; punctures rounded, very deep, perforate, distant by
slightly more than their widths, interspaces flat. Scutellum longer than
wide, convex, black, strongly arcuate behind, feebly so anteriorly, sides
nearly straight, finely punctate. Elytra as wide as the pronotum; sides
parallel in the basal three-fifths and feebly arcuate, thence elliptically
rounding behind; immediate apex acutely rounded ; disk scarcely one-half
longer than the head and prothorax together and slightly more than twice as
long as wide, moderately convex, feebly declivous at base, strongly striate ;
striae strongly and coarsely punctate, intervals flat, finely and asperately
punctulate, striae abruptly terminating along an imaginary transverse line
tangent to the posterior margin of the scutellum, leaving a large space at the
base of each elytron without striae or punctures ; humeral angles entirely
obsolete ; sides broadly rounding, each elytron being rather acutely rounded
at base and very feebly depressed toward the scutellum. Entire under sur-
face very strongly and coarsely punctate; posterior coxae pieeousblack,
longest at two-fifths their width from the middle. Tarsi finely and densely
ciliate beneath, fourth joints rudimentarily lobed beneath. Length 4.7 nun. ;
width 1.4 mm.

172 NORTH AMERICAN

Pennsylvania, near Philadelphia, 1.

From amabills this species differs greatly in its much more dense
pronofal punctuation, siiorter second antennal joint, more robust form,
and different coloration especially in the color of the under surface.
In frctiis the black under surface and excessively pale flavate legs
form a very striking contrast.

A XT II A XI A Esch.

There are in my cabinet five species of this genus wjiich belong to
the group combined by Dr. Horn under the name ceneogaster of
Laporte and Gory. I have compared them all with the types in Dr.
LeConte's cabinet, but only succeeded in identifying one form, wliicii
is strigata Lee; another from California so greatly resembled Dr.
LeConte's type of inornuta that 1 determined tlie same to be tliat
species. Recently, liowever, in reading the above author's original
description of inornata it appears that the front is without short setae,
and, since it is described from New York, I have concluded that it
must represent a distinct species and not having a representative of it,
it is not included in the following study. Strigttta is a very distinct
species in shape color and pronotal ornamentation, and it is therefore
preserved. The species alluded to above as resembling inornata is
quite distinct from striyata ; it approaches very nearly the form
figured as ceneogaster by Laporte and Gory, and I have therefore
determined to perpetuate this name by its means. The remaining
three species not appearing to have been seen by Dr. LeConte or by
Dr. Horn, are described as new in order to make the group complete;
they cannot unfortunately be identified with any of the species allied
to strigata described by Dr. LeConte, either fiom direct observation
or by description.

The sexual characters in the group are strongly marked and lie not
onlv in the differences to be oltserved in the sexual organs themselves,
which are generally protruded and easily seen, but in the structure of
the middle and posterior trochanters, these being acutely toothed
behind in tiie males and broadly rounded posteriorly in the females.

The species are separated primarily according to the pronotal
sculpture, this not being the same in any two, but in the subseipient
descriptions it will be seen that there are many other points of dis-
tinction in the structure and shape of the palpi, antennae, and pro-
sternal intercoxal process. The species can also be separated at a
Mance by the unaided eye from their general form. Tiie narrow
elevated lines forming tlie reticulation are termed rctal lines and tiie
spaces limited by tlieni maculae.

COLEOrXERA. 17,3

Retal lines coalescent laterally near the median line forming transverse
ca^rinae which are abruptly bent posteriorly along the median line toward
the base, so that from the former, in the basal half, tfie long retal lines
extend outward, giving an arborescent appearance. Toward the sides of
the disk the maculae are completely enclosed by the retal lines. The
maculae have an interior elevated ring, and within this, a verrucate seti-
gerous puncture, just behind the middle of the macula Strigafa.

Maculae distinct toward the sides of the disk, becoming smaller and con-
fusedly broken up in the middle, without transverse lines ; the maculae
even when distinct do not contain an elevated ring, but the surface is
rugulose with partial indications of a ring at some points ; each contains
an indistinct and very small verrucate setigerous puncture.

aeneogaster.

Maculae usually distinctly enclosed by the retal lines at all points of the
disk, but very slightly smaller in the middle ; each contains an interior
and usually indistinct ring, and within the ring, the usual verrucate
puncture. Prothorax widest before the middle 1... nan Ilia.

Maculae nearly as in the preceding species except that the interior ring is
smaller, stronger, and at a greater distance from the retal lines, and the
maculae are more broken up near the middle. Prothorax widest behind
the middle siniiola.

Maculae much larger than in any of the preceding species, very distinct
throughout the disk ; retal lines very fine, within them scarcely any trace
of an elevated ring, their surface being flat and very finely and strongly
granulose. Near the middle of the disk there are two minute impressions,
and toward the base, a narrow and distinct longitudinal canaliculation.

aenescens.

A. Strigata Lee. — Tr. Am. Phil. Soc. 1859, p. 215. — Form broad; sides
parallel. Color bronzed above, metallic greenish beneath ; elytra obscurely
punctate and very strongly and roughly asperate, also irregularly undulated
throughout ; pronotum distinctly more than twice as wide as long widest at
or very slightly behind the middle ; sides broadly arduate, feebly sinuate just
behind the middle. Antennae long and slender, first two joints very feebly
reticulated, second very slightly elongate, oval, very much shorter than the
third, third and fourth sub-equal in length, the latter about twice as long as
wide. Prosternal intercoxal process very wide, lateral terminal teeth very
broad and strong, apex slightly acute ; apical tooth long and slender, acumi-
nate at tip, sides almost parallel, ■almost filling the cavity of the mesosternum ;
sides of the latter not parallel, rounding behind ; maxillary palpi long and
rather slender, second joint longer than the third, the latter much longer
than wide, fourth much shorter than the second and third together. Length
5.5-7.0 mm. ; width 2.2-2.8 mm.

California, 7.

Besides the sexual character indicated above, another very remark-
able one may be mentioned beautifully displayed in the present species,
viz.: the inferior genital armor in tlie male is not punctate but finely
Cont. Part II. 8 January, 1885.

174 NORTH AMERICAN

reticulate, while in the female it is highly polished and strongly and
sparsely punctate.

A. aeiieogaster L. et G. — Mon. Anth. p. 32. — Form rather narrow and
elongate; sides parallel. Color very obscure and dull blackish-bronze above,
aeneous beneath ; elytra much less strongly asperate and more feebly undu-
lated ; pronotnm widest far behind the middle, more than twice as wide as
long ; sides broadly arcuate, not at all sinuate behind the middle. luter-
coxal process of the prosternum narrower, lateral terminal teeth broad and
rather short, very acute at apex ; apical tooth very long and conspicuous,
sides nearly parallel, leaving a large cavity in the mesosternum unfilled ;
sides of the latter parallel. Antennae much shorter and more robust, first
two joints very feebly reticulate, second nearly one-half longer than wide,
much shorter than the third, the latter distinctly longer than the fourth,
fourth but slightly more than on<'-half longer than wide ; maxillary palpi
long, second joint but very slightly longer than the third, the latter dis-
tinctly longer than wide, fourth joint very long and slender, nearly as long
as the second and third together. Length 5.5-tj.O mm. ; width 2.1-2.2 mm.

Arizona (Morrison), 4.

This species is very distinct, and, as the prothorax seems to resem-
ble that figured for ceneogaster by Laporte and Gory, I have ciioseii
this name for it. The expression employed in its descriijtion "d'un
noir pourpre tres-fonce," seems to strengthen this conclusion.

A. naniila n. sp. — Form rather narrow; sides parallel. Color above
dull bronze, beneath metallic greenish ; elytra finely and very strongly
asperate, rather feebly undulated ; prouotum very slightly more than twice
as wide as long, sides rather strongly rounded, widest a little before the
middle, sides thence nearly parallel for a short distance. Prosternal inter-
coxal process rather wide, more coarsely reticulate, more deeply emarginate
at the sides, lateral terminal teeth narrower, longer and more pronounced,
very acute at apex where there is, as usual, a distinct callosity, general form
of the teeth that of an equilateral triangle ; apical tooth scarcely longer than
the lateral, narrow, acuminate at tip, nearly filling the entire cavity of the
mesosternum ; the latter rounded behind as in stritjata. Antennae long and
slender, two basal joints rather strongly reticulate, second distinctly longer
than wide, but slightly shorter than the third, the latter about as long as
the fourth, fourth about one-third longer than wide, remaining joints more
strongly serrate than in the preceding species ; maxillary palpi moderate,
second joint much longer than the third, the latter scarcely longer than
wide, fourth rather short and robust, much shorter than the two preceding
together. Length 4.2-5.0 mm. ; width 1.6-1.9 mm.

California, G.

Easily distinguished by its small size, narrow form, and pronotum
widest before the middle.

COLEOPTERA. 175

A. Sillliola n. sp. — Form broad and depressed; sides parallel. Color
above dark and obscure brownish-bronze, beneath metallic greenish ; pro-
notum twice as wide. as long, widest behind the middle, much less strongly
emarginate anteriorly, sides very broadly arcuate, irregularly and coarsely
sub-serrate near the middle ; elytra feebly undulated, asperities much less
prominent than in naimla. Prosternal interooxal jirocess very broad, feebly
emarginate at the sides, lateral apical teeth very short and broad, rather
obtuse at the apices which are very strongly callous ; apical tooth rather
short, rapidly acuminate toward tip, filling nearly the entire cavity in the
mesosternum ; the Side-pieces of the latter very arcuate, nearly closing the
cavity behind. Antennae robust, first two joints rather strongly reticulate,
second slightly longer than wide, very slightly shorter than the third, third
and fourth equal in length, the latter as wide as long ; maxillary palpi short
and robust, second joint longer than the third, the latter scarcely longer
than wide, fourth scarcely perceptibly shorter than the second and third
together. Length 4.8 mm. ; width 2.1 mm.

California, 1.

Distinguished from nanula by its much broader and more depressed
form and by the shape of the pronotum.

A. aenescens n. sp. — Form moderately broad ; sides parallel. Color
above bright bronze, beneath obscure aeneous ; jjronotum distinctly more
than twice as wide as long, sides broadly arcuate, distinctly sinuate for a
short distance immediately behind the middle ; elytra much smoother and
less asperate or undulate than in the preceding species, the fine deep sparse
punctures being very distinct and the interspaces moderately convex, finely
and strongly granulate. Lateral terminal teeth of the prosternal process
slightly wider than long, acute at tip ; terminal tooth small, narrow, nearly
entirely filling the cavity of the mesosternum, the latter almost closed be-
hind : maxillary palpi very short and robust, third joint scarcely as long as
wide. Antennae having a cupreous lustre, first two joints strongly reticu-
late, second nearly globular, very slightly shorter than the third, third and
fourth equal in length, the latter but very slightly longer than wide.
Length 4.8 mm. ; width 2.0 mm.

California, 1.

This species is distinguishable at a glance by its smooth surface,
brilliant^ bronzed color, and very large reticulations of the pronotum
with comparatively feeble retal lines.

LYCTUS Fabr.

I.. parvullIS n. sp. — Form slender, convex ; sides parallel. Color
throughout black, legs and abdomen dark piceo-fuscons, apical margins of
the segments narrowly pale testaceous ; pubescence rather short, coarse and
sparse, pale fulvous, arranged serially on the elytra ; sculi^ture of head and
protliorax scabrous, cellular, the intervals being a fine network of narrow
raised lines. Head small, much wider than long ; eyes large, very convex ;

170 NORTH a:merican

interocular surface moderately convex, declivous toward tlie epistoraal sntnre
which is transverse and very strongly marked, terminating laterally at the
supra-antennal tiiberculations which are very strong ; epistoma short, four
times as wide as long, strongly sinuate anteriorly ; labrum very short,
strongly sinuate ; antennae much longer than the width of head, slender,
two basal joints moderately robust, slightly elongate, equal in length, third
much longer than the fourth, fourth and fifth siib-equal, seventh longer than
the sixth or eighth, the former longer than the latter, ninth equal to the
seventh, last two joints more robust, compressed, equal in length, the tenth
triangular, the eleventh conoidal, both as wide as long ; last joint of the
maxillary palpi twice as long as the third, moderately slender, acuminate.
Prothorax widest at one-third the length from the apex where it is one-half
wider than the head and about as wide as long ; sides strongly arcuate
anteriorly, strongly convergent and straight posteriorly ; basal angles obtuse,
not rounded, base one-third longer than the apex, arcuate except near the
basal angles ; apex rery feebly arcuate ; apical angles obsolete from above ;
disk moderately convex, scarcely impressed along the middle except near
the base where there is a very narrow short canaliculation. Elytra at base
about as wide as the pronotum ; sides parallel and straight for five-sixths
the length from the base, then obtusely rounding behind ; humeral angles
narrowl}' rounded ; disk sub-cylindrically convex, nearly twice as long as
the head and prothorax together, two and one-third times as long as wide,
shining, strongly and rather closely punctate ; punctures elongated longi-
tudinally and arranged serially ; near the suture they are smaller and more
confused. Scutellum minute, wider than lojig, tuberculiform. Abdominal
segments moderately convex, decreasing almost uniformly in length, finely
and strongly granulo-rugulose, more coarsely so toward base, very sparsely
pubescent. Legs sliort and slender ; first joint of tbe posterior tarsi very
minute, last equal in length to the first four together ; anterior coxae mutu-
ally one-fourth as distant as either from the anterior margin of the pro-
sternum. Length 2.8-3.2 mm.

Arizona (IMorrison), 2.

Differs very greatly from planicoUis Lee. in size, sliape of the
pronotum and sculpture, especially tliat of tin; under surface of the
abdomen, this being much coarser in parvulus. In both these species
the outer apical angles of the anterior tibiae are sliglitly prolonged ;
in Trogoxylon, however, tliey are iu>t prolonged, but merely very
acute.

SEICICA MacLeay.

S. parallela n. sp. — Form sub-cylindrical; sides parallel ; color pale
yellowisli-t>rruginons, legs and under surface slightly jialer, concoloroiis;
integuments opaque throughout, not iridescent. Head one-half wider than
long; occiput very finely sparsely and feebly punctate; clypeus strongly
rather finely and not rugulosely punctate ; epistomal suture very fine, clearly
defined, roundly angulate posteriorly, anterior margin sinuate in tlie middle
and refit'xed ; eyes very large, convex ; last joint of the maxillary palpi
three times as long as wide, slightly clavate, rather obtusely acuminate at

COLEOPTEKA. 177

tip; third joint of th(^ antennae very slightly longer than the fonrth, clnb
sliglitly longer than the remainder ; there are near the eye on the upper
surface several short setae which sometimes extend iu-a curved line across
the head along the clypeal suture, and there are also a few scattered setae
on the disk of the clypeus. Prothorax from above about twice as wide as
long; sides very slightly convergent from base to apex, and rather evenly
and distinctly arcuate ; apex about two-thirds as long as tlie base, trans-
versely and strongly eraarginate, angles acute ; base broadly arcuate, feebly
sinuate at each side of the middle, angles slightly obtuse and rather strongly
rounded ; disk glabrous, moderately convex, finely and rather feebly punc-
tate ; punctures distant by from two to three times their own widths ; lateral
margins very narrowly reflexed and having a row of a few long erect setae.
Scutellum very Hat, much longer than wide, sparsely punctate. Elytra
across the humeri slightly wider than the pronotum ; sides parallel and
nearly straight ; together very abruptly and obtusely rounded behind ; disk
two-thirds longer than wide and three times as long as the pronotum, convex,
glabl'ous ; longitudinal costae fine, not punctate, rather feeble, intervals
narrower, feebly impressed, finely and irregularly punctate ; epipleurae
having a row of rather closely placed erect setae. Under surface opaque,
finely and feebly punctate, nearly glabrous except on the coxae and last
ventral segment where there is a rather long fine and somewhat conspicuous
pubescence. Legs slender, long slender posterior tibial spurs but sliglitly
unequal in length ; posterior tarsi very long and slender, each joint having
throughout its length beneath two. acute unequal carinae, the larger one
being finely granulose ; first joint slightly longer than the second; claws
rather long, deeply cleft at tip, terminal portion strongly bent, inner tooth
robust, having the tip acute and very oblique. Length 8.0-9.0 mm. ; width
4.3-4.7 mm.

Atlantic City, New Jersey, 2.

This species eiin be distinguished from sericea by its smaller size,
much paler color, and very large prominent eyes, and also by the
shape of the posterior tarsal claw which is slightly shorter, more
robust, and with the a[)ical portion finer and prolonged further
beyond the inner in sericea. The surface when viewed perpen-
dicuhiHy is not iridescent, but a slight amount may be observed
when it is viewed very obliquely. The large eyes referred to above
is apparently not a sexual character, as the sexes may be very readily
separated by the longer or shorter antennal club, and there is then
seen to be no very markeil difference in the size of the eye. It may
prove a constant character for grouping aptirt some of the species in
this difficult genus, as there is another species represented in my
cabinet allied to tristis but having much larger eyes.

S. porcilla n. sp. — About twice as long as wide, sub-<;ylindrical, dark
reddish-brown, legs and under surface sliglitly paler ; shining throughout,
not iridescent ; glabrous above. Head but slightly wider than long ; occiput
rather sparsely finely and irregularly punctate ; clypeus very densely and

178 NORTH AMEniCAN

conflupiitly so, the latter two-thirds wider tlian long, sides rather strongly-
convergent anteriorly and strongly arcuate, apical margin strongly sinuate,
edges reHexed, scarcely more strongly so anteriorly than along the sides ;
eyes small, not prominent ; last joint of the maxillary palpi equal in length
to the first three together ; third joint of the antennae scarcely more than
two-thirds as long as the fourth, fifth twice as long as the sixth, conical,
irregularly hopper-shaped. Prothorax twice as wide as long ; sides slightly
convergent from base to apex and moderately arcuate, straight toward the
basal angles which are narrowly rounded ; apex slightly more than two-
thirds as long as the base, broadly and not strongly emargiuate, bottom of
the emargination broadly arcuate ; base brO'idly arcuate, very feebly sinuate
at each side of the middle ; disk moderately convex, polished, finely and
somewhat irregularly punctate, narrowly impunctate along the middle toward
the base, punctures smaller and more distant in the middle. Scutellum as
wide as long, triangular, acutely rounded at tip, punctate except broadly
along the middle. Elytra at base as wide as the pronotum, widest at two-
thirds the length from the base ; sides very feebly arcuate ; together abruptly
and very obtusely rounded behind ; disk convex, very slightly more tlian
one-half longer than wide, about three times as long as the pronotum ;
longitudinal costae very feeble, broadly convex, impunctate, polished, in-
tervals much narrower, finely and very irregularly punctate; punctures
round, rather feebly impressed. Under surface somewhat finely, sparsely,
and irregularly punctate throughout ; legs slender ; first joint of the poste-
rior tarsi very slightly longer than the second ; claws long and slender,
deeply and very narrowly cleft at tip, teeth of about equal length, the outer
very fine and acute, straight near the tip, the inner robust, obliquely
acuminate at tip. Length 7.0 mm.

Arizona (Morrison), 2.

The usual rows of setae along the latcM-al e<l2:es of the pronotum
and elytra are present. The relative length of the third aiitennal
joint may suffice to create a division in the genus.

I>IPLOTAXIS Kirby.

D, leTicllla n. sp. — F<irm moderately robust. Color throughout dark
reddish-brown, tarsi very slightly paler ; dorsal surface glabrous, moderately
shining, under surface having a few widely scattered erect robust setae which
are very short. Head four-fifths wider than long; occiput broadly convex,
coarsely and confusedly punctate, punctures somewhat transversely coal es-
cent, scabrous and not very deep ; clypeal suture transverse in the middle,
bent posteriorly at the sides to the eyes, rather well marked ; clypeus very
densely and coarsely punctate throughout, transversely truncate and very
feebly sinuous anteriorly, bent rather abruptly posteriorly at the sides to
the eyes just before which the margin is slightly sinuous, margin somewhat
strongly retloxed throughout from eye to eye ; labrum six times as wide as
its median length, broadly and somewhat strongly sinuous anteriorly ; disk
having a strongly elevated transverse ridge ; last joint of the maxillary palpi
slender, fusiform, as long as the two preceding together ; antennae pale

C'OLEOPTKUA. 179

testaceous throughout, very short, not as long as the head, club scarcely as
long as the first two joints together, second joint not one-half as long as the
first. Prothorax widest at two-fifths the length from the base where it is
distinctly more than twice as wide as long ; sides almost equally convergent
anteriorly and posteriorly and very feebly arcuate ; apex distinctly shorter
than the base, broadly emarginate ; base broadly arcuate, very feebly sinuate
toward each basal angle, the latter very obtuse and very slightly rounded :
disk rather convex, finely and closely punctate; punctures round, shallow
and variolate, separated by two to three times their own widths. Scutelluni
small, ogival, as long as wide. Elytra at base very slightly narrower than
the pronotum, widest at two-thirds the length from the apex where they are
but very slightly wider; sides very feebly arcuate ; disk abruptly and very
broadly rounded behind, slightly less than one-half longer than wide and
about three times as long as the pronotum, very minutely granuloso-reticu-
late, punctate ; punctures impressed, rather large, arranged in rows, the
sutural row being composed of smaller punctures much more closely placed ;
between this and the next regular row there is a wide area of larger punc-
tures irregularly disposed ; along the middle of the epipleurae there is a
row of stout erect setae. Legs rather long and slender ; tarsi very slender,
first joint of the posterior equal in length to the second, more robust and
strongly davate, third very slightly shorter, fifth about one-fourth longer
than the first ; claws very strongly compressed, strongly toothed, tooth
slightly shorter and more robust than the apical portion ; posterior tibial
spurs equal in width, slender, very unequal in length. Abdominal segments
imi)unctate except a close and somewhat irregular row of veiy large setigerous
punctures arranged transversely along the middle of each, those of the last
segment being scattered over nearly the entire disk ; pygidinni small, semi-
circularly rounded throughout beneath, disk very coarsely punctate, punc-
tures very shallow and variolate, surface irregularly undulated, upper
margin entirely exposed by the elytra. Length 7.5 mm. ; width 4.0 mm.

Arizona (Morrison), 1.

D. popillO n. sp. — Form moderately slender. Color throughout rather
dark brownish-red, head slightly darker, tarsi slightly paler than the tibiae ;
dorsal surface moderately shining, rather sparsely but distinctly clothed with
long erect rather coarse setae which are slightly longer, but scarcely more
dense, beneath. Head about one-third wider than long, moderately con-
vex, coarsely and very densely punctate ; punctures sofnewhat transversely
coalescent on the front, rugulose or scabrous ; clypeal suture narrow and
well-defined, transv^-se, bent slightly posteriorly near the eyes and feebly
sinuate for a short distance in the middle; clypeus strongly transverse,
apical margin broadly emarginate through three-fifths of its width, sides very
widely divergent to the eyes, forming at the sides of the emargination two
short rounded teeth, margin strongly reflexed throughout, most broadly so at
the apical projections ; labrum bilobed, very transverse, having a transverse
discal ridge, apical margin very deeply and narrowly sinuate; last joint of
the maxillary palpi srimewhat lunate, elongate, nearly as long as the two
preceding together, the latter equal in length ; antennae short, first joint

180 NORTH AMKRICAN

much more than twice as long as the second, club fully as long as the first
two joints togetiier. Prothorax widest at two-fifths its length from the base
where it is slightly more than twice as wide as long ; sides almost equally
convergent anteriorly and posteriorly, very feebly sinuate in the former,
straight in the latter sense ; apex slightly shorter than the base, broadly
and feebly emarginate ; base broadly arcuate ; apical angles acute and not
at all rounded, posterior obtuse and very slightly rounded ; disk moderately
convex, very coarsely aifd somewhat irregularly punctate, punctures deeply
impressed and generally separated by two to three times their own widths.
Scutellum small, scarcely longer than wide, narrowly rounded behind.
Elytra at base as wide as the pronotura, widest at two-thirds the length
from the base where they are nearly one-fourth wider; sides straight; disk
abruptly and very broadly rounded behind, scarcely more than one-third
longer than wide, convex, very coarsely and deeply punctate ; punctures
round, deeply impressed, arranged in widely distant double or triple rows,
the intervals being irregularly punctate; between the clearly defined sutural
row and the suture there is a row of more widely distant punctures. Abdo-
men rather finely sparsely and evenly punctate throughout ; pygidium
entirely exposed, slightly wider than long, parabolically rounded beneath,
surface coarsely and rather closely punctate, fringed beneath with a dense
line of short yellowish setae. Legs rather long and slender ; tibiae having
a cluster of teeth just beyond the middle exteriorly ; first and second joints
of the posterior tarsi equal in length, the former much more robust and
clavate ; claws strongly compressed, wide, sides nearly parallel, cleft at tip,
notch slightly more than one-fourth as long as the claw, inner tooth much
more robust than the outer. In the male tlie outer tooth is longer and more
slender. Length 8.5-9.5 mm. ; width 4.0-5.0 mm.

Arizona (Morrison), 2.

Tliis species should apparently be placed in a distinct subgenus
together with LeConte's pithenihts from the same region, not only
on account of the claws rather cleft at tip than properly toothed, and
the hairy vestiture, but more especially because of the prominent
anterior angles of the clypeus, and the deeply sinuate or bilohed
labrum.

AXOillALA Sam.

•

In looking over Dr. Horn's revision of the American species of
this genus. I find that this author combines htteipennis Lee. and
binofata Gyll. As I have very good sets of each of these foruis before
me I feel prepared to maintain their specific distinctness. They differ
in the following characters, which are independent of sex : —

In iiiteipenuis the form of the body is more robust and the pronotum
is proportionally much wider, the sculpture of the head and pronotum
is coarser while that of the elytra is finer, the last joint of the maxil-
lary palpi is very noticeably shorter and stouter, and the last joint of

COLEOPTERA. 181

the posterior tarsi when compared with the first two combined is miicii
longer and more slender than in hiuotuta. In addition we have many
minor differences, for example the color and elytral maculations wliich
are very different, and also the sparser pubescence of the under surface
in hinotata, and tlie more convex occiput in lateipennis.

STRIGODERMA Burra.

S. piinalis n. sp. — Rather dopressecl ; sides nearly parallel. Color
very variable, median portions of the sterna usually darker, black to pale
testaceous-brown, always strongly opalescent with metallic green or red
which is more evident in the dark specimens ; elytra glabrous, pronotum
clothed sparsely with long fine pubescence ; under surface sparsely and more
coarsely pubescent, more coarsely and very sparsely so on the abdomen ;
integuments polished. Head very slightly longer than wide ; interocular
surface moderately convex, very coarsely deeply and closely sculptured, with
very short impressed and vermiculate channels except along the base of the
occiput where the punctures are isolated ; first two joints of the antennae fus-
cous, the remainder dark piceous, club shorter than the remainder ; last joint
of the maxillary palpi much longer than the three preceding together, robust,
sub-cylindrical, obtusely acuminate at tip \ sides of the mentum narrowly
and deeply emarginate. Prothorax slightly wider than long ; sides almost
evenly arcuate, slightly more strongly so anteriorly ; basal angles broadly
rounded, apical acute and scarcely rounded ; apex about two-thirds as long
as the base, the former broadly emarginate, the latter strongly arcuate in
the middle, very feebly sinuate toward the basal angles; disk moderately
convex, narrowly margined throughout its circumference, sparsely and
rather coarsely punctate, the punctures becoming larger and more coales-
cent toward the sides; having at each side near the apical angles an oblique
canaliculate impression, and, just before the middle, a rounded punctiform
impression j just behind which there is another broadly impressed oblique
impression parallel to the one at the anterior angles, the two posterior often
coalescent ; median canaliculation broadly impressed nearer the apex than
the base, not attaining either. Scutellum very slightly wider than long,
sparsely and finely punctate. Elytra nearly one-half wider than the pro-
notum ; sides parallel and very slightly arcuate ; humeral protuberances
prominent, elongated posteriorly; each elytron evenly rounded behind ; disk
depressed, deeply striate ; striae coarsely foveolate, ])unctures very shallow
and in close contact ; intervals very slightly wider than the striae, in the
form of very convex ridges ; disk two-fifths longer than wide and four-fifths
longer than the head and pronotum together. Pygidium strongly rugulose ;
ridges transverse. Larger claw of anterior and middle tarsi cleft at tip.
Length 11.0 mm.

Arizona, 5.

This species, until now confounded with arboricola, I find to differ
in many characters irrespective of color and siiape. In pimalis tlie
two teeth formed by the cleft at the tip of the middle tarsal claws are

182 NORTH AMERICAN

equal in length, while in arboricola they are very unequal in length
and much more unecjual in thickness. Perhaps the most decisive
point of difference is in the sexual characters ; the first and some-
times also the second ventral segments in the males of arboricola are
ornamented with a transverse series of broad deeply impressed longi-
tudinal canaliculations, while in the males of piiua/is tiiere is no trace
of tiiis formation, but a mere trace of two very narrow exceedingly
feeble distant and partial longitudinal impressions. Tiiere is also a
decidetl difference in the nature of the abdominal pubescence, this
being much more abundant and finer in arboricola. In color and
form the two species differ very greatly, piinalis being relatively
longer and narrower, with the sides mucli less arcuate. They also
differ greatly in tlie sculpture of the scutellum.

»ISO-\YCHA Cliev.

D. pi'OCera n. sp. — Form elongate narrow ; sides parallel. Color of
liead lilack, with a dilfused band of fuscous between the antennae, pronotum
pale reddish, with narrow paler liavate margins, elytra having a broad
sutiiral vitta, a very broad discal one which does not attain tlie apex, and a
broad lateral vitta not attaining the reflexed side margins and not attaining
the apical angles, all of black, remaining portions bright yellowish-white,
and so narrow as to give the appearance of black elytra with narrow silvery
vittae ; under surface black, except the prosternum and its side pieces which
are pale flavo-testaceous, and the last ventral segment which is fuscous, the
remaining segments also have at each side a small diffused patch of dark
fuscous ; femora dark rufous, tibiae and tarsi black, antennae intense black
throughout; upper surface glabrous, polished, under surface covered some-
wliat densely with very short fine and inconspicuous pubescence ; elytral
epipleurae black, outer edge pale Havate. Head slightly wider than long,
median portions impunctate ; occiput having a very small median imjjres-
sion, between which and each eye, there is a large irregular impression
containing three or four large punctures, also in the mid'lle of the front
between the middle points of the eyes, a small deep impression with four
short radiating canaliculations, and between this and each eye a few small
scattered punctures ; labrum much wider than long, strongly sinuate ante-
riorly; antennae one-half as long as tlie body, covered densely with very
fine short pale pubescence, second joint huiger than wide, oval, one-half as
long as the tiiird, the latter three-fourths as long as the fourth. Prothorax
distinctly more than twice as wide as long ; sides feebly convergent ante-
riorly, feebly arcuate ; anterior angles slightly thickened, rounded ; apex
transverse, feebly indented near each apical angle ; base broadly arcuate,
broadly and feebly trisiuuate, basal angles narrowly rounded, each bearing
an erect seta; disk broadly convex, almost imi)unctate, very minutely and
feelily reticulate, transparent, not maculate except a vague longitudinal
median spot. Elytra at base as wide as the pronotum, widest at two-thirds

• COLEOPTERA. 183

the length from the base where they are but very slightly wider ; sides
nearly straight ; apical angles obtuse and slightly rounded ; disk abruptly
and obtusely rounded behind, rather broadly convex nearly twice as long as
wide, and more than five times as long as the pronotum, feebly and sparsely
punctnlate and very minutely sub-granulate, polished ; each elytron has in
the median black vitta, beginning at one-fifth the length from the base and
terminating at one-fourth the length from the apex, two long narrow ridges
with an intervening canaliculation ; lateral margins narrowly reflexed.
Legs , robust ; posterior femora very robust, strongly compressed ; tibiae
finely and densely pubescent ; first joint of the posterior tarsi but slightly
shorter than the remainder couibined. Abdominal segments very finely and
densely ruguloso-jjunctulate. Prosternal intercoxal process slightly dilated
and depressed at tip, pubescent. Length 6.8 mm, ; width 3.0 mm.

Milt'ord, Delaware, 1.

The coarse granulation of the under surface of the elytra sinning
through the transparent substance of the latter, gives to the narrow
pale vittae a most beautiful appearance when examined with sufficient
power ; these vittae are of a pure silvery white when the insect is
living, but subsequently turn to a yellowish color. The species is
one of the most distinct, and, according to Mr. Crotch's table of this
genus, should apparently follow alternata in the catalogue.

BRUCHUS Linn.

B. cnl>iculus n. sp. — Form slightly elongate. Head and entire under
surface black ; pronotum black except a large spot near the basal angles
and a smaller one near the apical angles which are obscure rufous ; elytra
mottled with black and rufous, the most prominent black spots being a
small humeral, a broad medial one not attaining the suture, and a nuich
larger and irrregular apical spot ; pubesc<^nce very sparse, cinei-eous. Head
strongly deflexed, much longer than wide, abruptly constricted behind tlie
eyes into a rather long neck, entire surface* finely and strongly ruguloso-
punctulate ; interocular surface abruptly slightly below the surface of the
eyes, much narrower than the latter, having a broadly obtuse but very dis-
tinct longitudinal carina ; eyes coarsely granulated, large, lenses very
convex ; antennae shorter than the head and prothorax together, first four
joints fuscous and slender, remainder strongly compressed, black, with the
joints strongly serrate externally, becoming much more strongly so toward
tip and also wider, very compact, terminal joint resting obliquely along the
tooth of the preceding joint, pubescence very fine and short, cinereous,
second joint oval, slightly longer than wide, much shorter and more robust
than the third, third slightly longer and less robust than the fourth.
Prothorax widest at base where it is about one-half wider than long ; sides
strongly convergent anteriorly and very feebly arcuate ; apex less than
one-half as wide as the base, broadly and very feebly arcuate ; base strongly
arcuate, feebly sinuate at each side of the middle with the intermediate
edge at the middle very broadly arcuate, almost truncate, also more strongly

184 NORTH AMERICAN

sinuate near each basal angle, the two lateral sinuations being separated by
a very broad and feeble tooth ; disk strongly convex, not elevated along the
middle, strongly ruguloso-punctulate, having at the base a short and strong
medial canalicnlatiou, also feebly impressed at the base on each side of the
middle. Scutellum wider than long, transversely sub-oval, not densely
pubescent. Elytra at base very slightly wider than the pronotum ; sides
parallel and very feebly arcuate ; each elytron broadly rounded behind ;
disk distinctly longer than wide, not impressed along tlie suture, moderately
convex ; striae strong and impressed, scarcely punctate ; intervals nearly
tlat, strongly ruguloso-reticulate, shining ; humeri very prominent. Pygi-
diiim very large, much longer than wide, triangular, sides all broadly arcuate,
disk strongly and coarsely ruguloso-punctulate, black, rufous along the base,
sparsely pubescent, more densely so at the base near the elytra, apex
narrowly rounded. Ventral segments abruptly and broadly rufous at tlie
sides near the elytra, the rufous color extending on the last segment tb rough-
out its extent, remainder black. Femora not dentate ; posterior tibiae having
two large strong and unequal terminal teeth and also several very minute
ones ; first joint of the posterior tarsi cylindrical distinctly arcuate more
than three-fourths longer tlian tlie remainder, second much longer than the
tliiid. Length 1.5 mm.

Arizona (Morrison), 1.

Much smaller than inipiger Horn, after wliicii it should be placed
in the catalogue; the shape of the pronotum is very different in the
two species.

In tliis connection it should be stated that there are two species of
Bruchus which may be easily confounded, viz., hibisci Oliv. and
alboscittellatus Horn. I have identified a series in my cabinet as the
last-iuimed species, although they were taken in Pennsylvania and
Delaware and vary in size from 1.7 to 2.2 mm. Dr. Horn gives the
locality as Georgia, Louisiana and Missouri, and, as he states the
length to be 2.;} mm., the species is seen to have a great range of
variation in length as well as an extended distribution. Tlie
scutellum is smaller than that of hibisci and the form of body more
slender; the posterior femora has a large tooth and between it and
the tip two minute dentacles almost e(piidistant from each other and
the large tooth, and also near the latter and toward the base of the
femur a second smaller and much shorter tooth.

EPITK.KiUS Latr.

E. ovalis n. sp. — Form moderately robust, oval, rather strongly convex ;
liead and pronotum black, elytra dark rufous, under surface dark pioeous-
brown, legs and antennae not paler ; pubescence of upper surface very short
and ratber dense, briglit fulvous, less conspicuous on the elytra; integu-
ments sub-opaque. Head as long as wide ; sides from the posterior limits of

COLEOPTERA. 185

tlie eyes straight and rapidly convergent anteriorly ; supra-antennal ridges
Hat above, transverse anteriorly and disappearing in the general surface of the
clypeus which is declivous anteriorly, produced, and vt;ry strongly rounded
at the apex, almost angulate ; eyes flat, rather large, having just within
each on the front a very fine carina ; interoeular surface feebly convex,
broadly impressed on each side witliin the antennal ridges, very deeply
densely, and slightly unevenly punctate, punctures round, rather more
sparse along the middle, and much smaller on the epistoma ; labrum trans-
verse, feebly sinuate anteriorly ; antennae slightly shorter than the pronotum,
outer joints strongly compressed, second joint nearly two-thirds as long as
the third, three to five decreasing in length, seven to ten slightly produced
outwardly at apex. Proihorax widest at the base where it is about two-fifths
wider than long ; sides very feebly arcuate, straight in the posterior half;
apex broadly eraarginate, about three-fourths as long as the base, angles
acute ; base strongly arcuate in the middle, sinuate in the middle of each
side, and thence straight and transverse to the basal angles which are right
and not at all rounded ; disk strongly convex, densely finely and coalesnently
punctate, punctures round, deep and somewhat scabrous toward the sides,
interspaces very minutely granulose. Elytra at base very slightly wider
than the pronotum, widest in the middle where they are about one-half
wider than the pronotum ; sides rather strongly arcuate, strongly convergent
and nearly straight to the apex which, conjointly, is somewhat obtuse but
scarcely rounded ; disk from above two and one-half times as hmg as the
pronotum, convex, strongly declivous toward the apex, finely feebly and
rather densely punctate, punctures almost uniformly distributed; striate,
striae scarcely perceptibly impressed and very slightly more densely punc-
tate, darker in color ; surface also confusedly creased. Under surface finely
punctate, the metasternum sparsely and more coarsely so, the abdomen very
densely ; prosternum and its side-pieces eqiTally strongly and confusedly
ruguloso-punctate. Legs slender ; anterior tibiae slightly prolonged exter-
nally at tip, terminal spurs almost exactly equal, long and stout ; first joint
of the corresponding tarsi slightly longer than the next two together; first
joint of the posterior much longer than the next two together and very
slightly shorter than the last ; claws very long and slender, perfectly simple.
Length 9.5 mm. ; width 4.2 mm.

Texas, 5.

Tlie description is taken from the female. There is a very narrow
median space toward the base wl)ich is very sparsely punctate, but
which is scarcely noticeable ; the anterior iangles are acute but not
produced, and the surface is very evenly convex througiiout ; in the
male the punctuation is less dense. I cannot identify it with any of
the species described in the Biologia Cent.-Amer.

BI.APSTI1VIJS Latr.

B. pinialis n. sp. — Form rather slender, moderately convex. Color
black above, piceous-black beneath, legs slightly paler, dark fuscous, au-

186 NORTH AMERICAN

tennae scarcely paler except toward base where they are slightly piceons ;
pubescence above rather fine, short and sparse, recumbent, dark fulvous,
more conspicuous beneath, cinereous. Head distinctly wider than long;
anterior angles very broadly rounded ; apical margin narrowly and feebly
sinuate ; eyes small ; surface feebly convex, rather coarsely densely deeply
and sliglitly confusedly punctate, punctures slightly elongate ; antennae as
long as the pronotum, rather slender, slightly geniculate, outer joints dis-
tinctly compressed, second one-half as long as the tliird and three-fourths as
long as the fourth, about as long as wide, seventh sub-globular, eightli
slightly wider than long, ninth still wider, ninth and tenth equal in width,
eleventh slightly narrower, conoidal, very slightly longer than wide, joints
four to nine sub-equal in leiifitb ; labrum very short and transverse, rather
deeply sinuate anteriorly. Prothorax widest at the middle where it is about
one-lialf wider than long ; sides evenly and feebly arcuate ; apex slightly
shorter than the base, broadly and feebly emarginate, angles from above
right and slightly rounded ; base broadly arcuate in the middle, distinctly
sinuate near the basal angles which are right and very slightly rounded ;
disk broadly convex, narrowly and acutely margined at the sides and along
the base, coarsely deeply very densely and nearly evenly punctate ; ijunc-
tures perforate, elongated, interspaces nearly flat, very minutely granulo-
reticulate. Elytra at base as wide as the pronotum, slightly wider at two-
thirds the length from the base ; together thence gradually and acutely
rounded behind; sides very feebly arcuate anteriorly; disk about twice as
long as the head and prothorax together, coarsely striate ; striae feebly im-
pressed, punctate: punctures round, rather fine, feebly impressed, distant
in the rows by nearly twice their widths, intervals feebly convex, finely and
feebly ruguloso-punctulate, moderately shining. Under surface finely and
sparsely punctate ; prosternum deeply and very densely punctate, scabrous,
side-pieces very densely and longitudinally rugulose ; first three ventral
segments decreasing very gradually in length, fourth shorter ; sutures be-
tween the last three segments very deeply impressed. Legs rather slender ;
first joint of the posterior tarsi longer than the next two together. Length
4.7-5.0 mm.

Arizona (Morrison), n.

Tiie jtubescent'e of the elytra is rather coarser ami more conspicu-
ous tlian that ol" tlie lieail and pronotum. In general form this species
reseml)h's piilreriilentns Mann., being only a little shorter and more
robust ; it diflers from that species in its rougher and more dense
sculpture and especially in the form of the pronotal punctures, wiiich
are circular in pulverulenfus, and in its very much deeper and d<'nser
rugulosity of the prosternal side-pieces; it should probably follow that
species in the catalogue.

MORDELI.A Linn.

M, deserta n. sp. — Form rather robust: sides nearly parallel. Pubes-
cence very coarse, close, recumbent and sericeous, setiform, very pale fulvo-

COLEOPTKRA. 187

cinereous on tlie flanks of the head and pronotuni, piceous on the middle
portions of the disk, also fulvo-cinereoiis in two hroad lateral vittae extend-
ing from the humeri of the elytra to the apex and slightly increasing in width
through the basal third, also on the scutellum and very narrowly along
the suture ; .on the remainder of the elytral surface dark piceous-brown by
reflected light, dark reddish-purple by transmitted light ; integuments uni-
formly piceous-black, very finely feebly and closely punctate, much more
finely so on the pi'othorax than on the elytra. Head slightly wider than
long; interocular surface broadly and very evenly convex throughout; eyes
continuous in curvature with it and somewhat large, rather finely granu-
lated ; anterior margin of the epistoma narrow and very feebly arcuate,
slightly less than one-half as long as the distance between the eyes ; last
joint of the maxillary palpi more than twice as long as wide, so obliquely
truncate as to be scalene in outline, truncated edge very broadly arcuate ;
antennae short, scarcely longer than the width of head, first and second
joints nearly equal in length, shorter than the third, first four joints sub-
cylindrical, five to ten decreasing in length, narrowed toward base, trape-
zoidal, the former slightly longer than wide, the latter distinctly transverse,
eleventli longer than wide, oval in outline, obtusely rounded at tip, joints
five to eleven strongly flattened. Prothorax one-third wider than long,
rather strongly and evenly convex; sides feebly and evenly arcuate ; apex
. very slightly shorter than the base, broadly and somewhat angularly
arcuate, the latter strongly and abruptly arcuate through the middle third.
Scutellum slightly wider than long, evenly and acutely rounded behind,
sides feebly arcuate, surface flat, finely and asperately punctate. Elytra at
base just visibly narrower tlian the pronotum ; sides parallel and nearly
straight for three-fouii;hs the length from the humeri, thence rather obtusely
rounded behind, each elytron evenly and rather acutely rounded at apex ;
disk conjointly very slightly more than twice as long as wide. Legs and
under surface of the body black, with ^ne fulvo-ciuereous pubescence;
posterior tarsi longer than the femora, first joint much longer than the next
two together, slightly shorter than the tibiae ; tibiae and first three tarsal
joints densely fimbriate at tip with short stout equal spinules ; claws feebly
arcuate, not at all cleft nor pectinate, but having on the inner edge two or
three very minute tuberculiform denticulations ; spurs of posterior tibiae
rather long, very stout, acute, straight and very unequal. Length from tij^
of anal style 4.5 mm. ; width of pronotum 1.7 mm.

Arizona, 1.

According to the table given by Mr. J. B. Smith, tliis species would
enter the first of his groups in the second division of Mordella, and I
see nothing there which will at all fit the above description.

XYLOPHILUS Latr.

X. densus n. sp. — Form elongate, rather slender, sub-cylindrical, in-
tense black throughout, antennae piceous, last joint pale testaceous, femora
piceous, tibiae and tarsi paler, dark testaceous ; pubescence very fine, short,

188 NORTH AMERICAN

sub-recumbent, plumbeous, rather dense but not at all conspicuous, uniform
in color tlirougliout, mucli more sparse beneath ; integuments sliining. Head
moderate mueli wider than long ; base broadly and roundly eraarginate
throughout ; basal angles slightly prominent, narrowly rounded ; eyes very
large, coarsely granulated, glabrous, at less than one-third their length from
the tips of tlie basal angles, inner edges feebly sigmoid, strongly convergent
anteriorly ; interocular surface finely strongly and evenly punctate, punc-
tures roun<l, perforate, distant by about twice their own widths, interspaces
feebly sub-granulose, flat ; antennae rather distant at base, robust, one-
third longer than the width of liead ; excavations deep, narrowly margined,
entering the eye as a rather feeble emargination ; first joint moderately
robust, slightly elongate, oval, second very slightly narrower, sub-globular,
thiid slightly narrower, much elongated, about as long as the next two
together, four to six slightly wider, quadrate, seven to eleven abruptly wider,
increasing slightly in widtli, forming a five-jointed club, seventh very slightly
wider than long, tenth one-half wider than long, eleventh conoidal, mode-
rately elongate ; last joint of the maxillary palpi nearly twice as wide as long,
transversely truncate and spongy at the apex, triangular, convex outwardly,
slightly concave internally, remaining joints very narrow. Prothorax widest
near the middle where it is one-third wider than long; sides strongly con-
vergent and nearly straight antei'iorly, less strongly convergent and feebly
arcuate to the base which is nearly transverse ; basal angles obtuse, not at
all rounded, somewhat prominent ; apex broadly arcuate, about two-thirds
as long as the base ; disk broadly convex, finely very densely and strongly
punctate ; punctures perforate, round, generally separated by their own
widtiis or less ; aiear the base there is on each side of the middle a large
deeply impressed lunate area, the two being completely divided. Scutellum
small, nearly circular. Elytra three-fourths wider than the pronotuui ;
sides parallel and nearly straight ; humeral angles rounded; together rather
abruptly and obtusely rounded behind, leaving the tip of the pygidium
exposed ; disk broadly convex, distinctly more than twice as long as wide,
rather finely very deeply and nearly evenly punctate ; punctures perforate,
round -near the base, finer and more elongate near the apices, generally
separated by twice their own widths, interspaces flat, extremely minutely
punctulate ; each elytron is narrowly margined along the suture, and is
broadly impressed in the middle near the base and slightly swollen between
the impression and tlie scutellum. Legs slender; posterior femora strongly
toothed on the internal edge at two-thiids the length from the base, the
opposite outer edge is also slightly swollen. Abdomen finely punctate and
minutely reticulate. Length 2.0 nnii.

Gleiiolden, neai" Pliiladelphia, 1.

I can distinguish but tour ventral segments besides tlio very short
pygidium, the lirst two being perhaps connate and together as long as
tlie remaining tliree. The only species whicii can be conibunded
with this is iinpressus, after which it should stand in the catalogue;
it ditl't-rs from tliat species, according to Dr. LeConte's description,
in size color and t'orni.

COLEOPTERA. IgQ

IVOTOXUS Geoff.

IV. delicatllS n. sp. — Form slender, ratlier convex. Pale testaceous,
head and prothorax slightly darker, on the disk of each elytron near the
middle and very near the base there is a rounded suffused spot of slightly
darker tint; also at or just behind the middle a transverse very narrow baud
of fuscous tint, bent forward near the suture so that the anterior point on
the suture is distinctly in front of the middle, also at the apical fifth a
narrow band of the same color, somewhat broader and much more regular,
slightly bent forward toward the elytra, apices pale, under surface very pale
reddish llavate, legs same, antennae slightly darker ; pubescence fine, very
dense and recumbent with a few erect scattered setae. Head slightly longer
than wide, very broadly sinuate behind ; eyes moderate, very coarsely granu-
late, three-fourths their own length in advance of the posterior angles ;
interocular surface broadly and strongly impressed, rather densely pubes-
cent, coarsely alutaceous or reticulate ; supra-ocular carinae very fine rather
feebly convergent anteriorly; antennae longer than the head and prothorax
together, second joint rather robust, one-half longer than wide, two-thirds
as long as the third, very much shorter than the fourth, outer joints com-
pressed. Prothorax very slightly longer than wide ; sides very arcuate
anteriorly, straight and moderately convergent posteriorly; disk very con-
vex, very finely and feebly punctate, basal groove transversely and poste-
riorly angulate, narrow, very strong, not attaining the basal margin ; horn
much shorter than the pronotum, narrow, not constricted at base, rather
acutely rounded anteriorly, edge reflexed, finely and rather distantly dentate
throughout the circumference, crest rather feebly elevated, long, narrow,
acute anteriorly where the surface is slightly declivous, edge broken, finely
dentate. Elytra at base one-fourth wider than the pronotum, widest slightly
behind the middle where it is nearly two-thirds wider than the pronotum ;
disk conjointly evenly rounded behind ; inner apical angles narrowly
rounded ; rather convex, feebly impressed at the basal third, two and one-
third times longer than wide, coarsely closely and evenly punctate ; punc-
tures rounded and impressed. Legs slender ; first joint of tlie posterior
tarsi very slightly longer than the remainder.

Male. — Terminal segment narrowly truncate at tip ; surface feebly reflexed
but scarcely impressed.

Female. — First segment relatively a little shorter ; terminal obtusely acumi-
nate at tip ; first joint of the posterior tarsi much longer than the remainder ;
thoracic horn much wider, strongly dilated toward tip and constricted at
base. Length 2.8 mm.

Atlantic City and Cape May, N. J., 3.

A very fine distinct little species which apparently belongs imme-
diately after b/fasciatns in the catalogue ; it is not rare along the
seacoast of New Jersey. The bands of tlie elytra are very narrow
and often very pale in color.

Cont. Part II. 9 Ja.ncakv, 1885.

190 ' NORTH AMERICAN

AXTHICUS Payk.

A. facilis n. sp. — Moderately slender, black throughout, legs and an-
tennae very dark piceo-testaceous ; pubescence somewhat coarse, sub-erect,
rather long and dense, pale fulvous in color ; integuments polished. Head
moderate in size, slightly wider than long, truncate behind ; sides behind
the eyes parallel and feebly arcuate ; basal angles moderately rounded,
prominent ; eyes small, convex, rather coarsely granulated, at more than
their own length from the base ; interocular surface convex, fiuelj' deeply
and evenly punctate ; antennae two-thirds longer than the head, slender,
basal joint one-half longer than wide, joints two to six equal in width,
elongate, narrower than the first, nearly equal in width, seven to eleven
abruptly wider, equal, in width, forming a slightly prominent five-jointed
club, joints seven to ten equal, slightly wider tlian long, eleventh longer,
acuminate. Prothorax widest at less than one-third its length from the
apex where it is slightly narrower than long; sides here strongly arcuate
and convergent to the apex, less convergent and feebly sinuate to the base ;
apex prolonged slightly as a narrow transverse band but slightly more than
one-half as long as the base, the latter broadly arcuate ; disk strongly
convex, slightly narrower than the head, finely vt^ry deeply and somewhat
unevenly jjunctate ; punctures round, perforate, interspaces flat, polished.
Scutellum very minute. Elytra at base distinctly wider than the head ;
sides parallel and slightly arcuate for four-fifths the length from the base ;
together obtusely rounded at tip, leaving the tip of the last ventral segment
and pygidium exposed ; inner apical angles sliglitly rounded ; disk twice
as long as wide, broadly convex, sliglitly impressed along the suture near
the base, coarsely very deeply and rather densely punctate ; punctures
round, perforate toward the base, becoming impressed and more fseble near
the apices. Abdomen alutaceous, feebly shining, extremely minutely and
feebly punctulate toward the base, finely and sparingly pubescent ; hairs
cinereous and recumbent ; first segment in the middle nearly as long as the
next three together ; metasternum rather coarsely and very deeply punctate.
Legs slender ; first joint of the posterior tarsi as long as the remainder ;
claws small, slender. Length 1.8 mm.

Near Chester, Pennsylvania, 3.

Taken under riil)bish on the sliores of the Delaware River in
early spring. It is easily tlistinsriiislied by its small size, black color,
and coarse deep and dense punctuation.

RnVNCHITES llerbst.

R. liaso n. sp. — Form rather slender. Color above intense black, be-
neath bluish-black, legs same, tarsi not paler, antennae slightly paler and
piceous toward base, black toward tip. Pubescence fine, short, rather sparse,
semi-erect, longer and coarser but more sparse on the alidomen, more dense
and cinereous on the tibiae and tarsi. Head rather longer, slightly wider
than long, rather convex, deeply coarsely and closely ruguloso-puuctate ;
eyes rather large and slightly prominent, somewhat finely granulated ;

COLEOPTERA. 191

beak very long and slender, n<'arly as long as the elytra and fully one-third
longer than the head and pronotum together, cylindrical except at the tip
where it is dilated and flattened ; mandibles very conspicuous, tridentate
without, sparsely truncate at tip, and having within two minute teeth near
the tip ; between them on the apex of the beak are two porrected tubercles ;
surface strongly rugulose or longitudinally channeled, the channels con-
fusedly coalescing at the base, above there is a longitudinal carina deeply
canaliculate along the crest; sides of the head finely rugulose in the form
of long vertical crowded folds ; antennae three-fourths as long as the beak,
slender, inserted at one-third the length from the eye, second joint long and
slender, miich longer than the first, very slightly longer and thicker than
the third, club abrupt, not very compact, joints almost equal in length and
slightly longer than wide. Prothorax as long as wide, widest at one-third
its length from the base ; sides feebly arcuate, more strongly so near the
base; apex and base equal in length, but very slightly shorter than the
greatest width ; disk sub-cylindrical, transversely and very feebly impressed
at the anterior fourth, very coarsely closely and deeply punctate, intervals
about one lialf as wide as the punctures, convex and polished ; sides of the
punctures irregularly and finely indented. Elytra widest at two-thirds the
length from tlie base where they are five-sixths wider than the pronotum ;
humeri prominent, rather rounded ; sides behind them feebly and broadly
sinuate ; disk rather abruptly and broadly rounded behind, more than one-
third longer than wide, very convex toward tij), flat or very feebly impressed
above and near the base, highly polished, punctato-striate ; striae feebly
impressed, punctures large, very deep, close and almost perforate, intervals
three times as wide as the punctures, feebly convex and finely undulated.
Abdomen transversely and feebly rugulose. Legs very long and slender ;
tibiae fimbriate at tip with short nearly equal spinules ; claws robust, dis-
tinctly toothed or cleft within at one-half their length from the base. Length
(exclusive of beak) 2.8 mm.

Calitbrnia, 1.

The contrast between the very coarsely and deeply punctate pro-
notum and the finely and vertically rugulose or strigilate sculpture of
the sides and under surface of the head is one of the greatest wliich
I have observed in two adjoining surfaces of the same insect. I
cannot see any species to which it can be allied, but it may for the
present be placed immediately after hirtas Oliv., from which it differs
by its more dense pronotal punctuation, and in the elytral intervals
not being serially punctulate ; it also appears to have a much longer
beak.

AlVTHOXOMUS Germ.

A. nioleCUlUS n. sp. — Form rather robust. Black throughout, an-
tennae piceous toward tip, paler and brownish-testaceous toward base, legs
black, tarsi very slightly paler, piceous,. upper surface covered not very
densely with small elongate cinereous scales which are more dense beneath,

192 NORTH AMERICAN

except on tlie abdomen where they are much more sparse, and, except near
the sides, are so narrow as to almost lose the appearance of scales. Head
small, finely and strongly granulate; eyes moderate, slightly prominent,
rather coarsely granulate ; beak somewhat robust, as long as the head from
the anterior limit of the eyes and prothorax together, very feebly enlarged
fi'om base to tip, the latter appreciably flattened, surface strongly granulose,
very obscurely and longitudinally ruguloso-punctulate, not striate ; near the
ti}} there is a small polished space and four short setae, two apical and two
lateral ; antennae attached slightly beyond the middle poiut, scape much
longer than the funicle, very slender, rather abruptly davate at tip, funicle
()-jointed, first robust and elongate, distinctly longer than the next two
together, second longer than Avide, slightly narrower and distinctly longer
than the third which is wider than long, club compact, elongate, oval,
acuminate at tip. Prothorax widest at one-third the length from the base
where it is almost twice as wide as the medial length ; sides rather strongly
arcuate, feebly convergent toward the basal angles and feebly sinuate near
the apex, the latter about one-half as long as the base, broadly emarginate ;
base nearly transverse; disk convex, very feebly constricted throughout at
the apical third, very coarsely deeply and closely punctate, interspaces about
one-third as wide as the punctures, shining. Scutellum small, oval, very
slightly longer than wide, strongly convex. Elytra widest at one-third the
length from the base where they are one-third wider than the pronotum ;
sides very feebly arcuate ; humeri narrowly rounded ; base transverse and
elevated slightly above the pronotum ; disk very convex, from al)Ove not
three times as long as the pronotum and nearly two-fifths longer than wide ;
striae very feebly impressed, very coarsely t^losely and deeply punctate, more
feebly so toward the apices, intervals much wider than the punctures, nearly
flat ; inner apical angles slightly rounded. Pygidium exposed, nearly
twice as wide as long, broadly rounded beneath, coarsely and very strongly
granulose. Fifth ventral segment distinctly longer than the fourth, third
fourth and fifth sutures curved backward at the sides successively to a
greater degree ; claws very deeply and widely cleft. Anterior femora having
a distinct but small tooth beneath at two-thirds the length from the base,
remaining femora not toothed ; anterior tibiae obliquely truncate at tij) and
armed interiorly with a short acute apical tooth which is slightly recurved.
Length 1.6 mm. ; width 0.9 mm.

Pennsylvania, near Pliiladf'lpliia, 1.

On eoniparing this specMnien with Dr. LeConte's type of rohi/sfxhis,
I had come to tiie conclusion that it was distinct on account of the
narrower form and slightly ditferent vestiture, and this opinion is
somewiiat strengthened on reading the original description M'herein
it is stated that the femora are not toothed, and the second and third
joints of the funicle are nearly etjual. It is, however, very closely
allied to rohitstiiliis which is (It'scril)e(l from Kansas. The second
ventral segment is as long as the third and fourth together, the latter
equal in length.

COLEOPTERA. 193

E;L1.ESCHUS StepU.

E. californicus n. sp. — Form long and slender, piceous or rufo-
piceous, covered densely with very elongate narrow scales which are dis-
posed transversely on the pronotum and longitudinally on the elytra,
generally yellowish-cinereous, sparser along a median line on the pronotum ;
elytra having a transverse rectangular dark spot on the suture just behind
the njiddle ; between this and the base there are a few faint mottlings ;
under surface more sparsely covered with very thin scale-like white liairs.
Head small, slightly wider than long, convex very densely and coarsely
punctate ; eyes large, moderately prominent, somewhat coarsely granulate,
separated by much less than their own width ; beak rather short and robust,
glabrous and polished in the apical two-thirds, where the punctures become
very small, isolated, and distinct, absent from a narrow medial region and
from the extreme t\]y, the latter bearing about six fine erect setae ; antennae
testaceous throughout, scape slender, bent at tip, serobes very deep, oblique,
first joint of the funicle slightly shorter than the next three together, second
slightly longer than the third, club short, oval, very compact. Prothorax
widest in the middle where it is very slightly wider than long ; sides thence
very feebly convergent and nearly straight to the base, more strongly con-
vergent and feebly sinuate near the apex, the latter nearly three-fourths as'
long as the base, both broadly and very feebly arcuate ; disk strongly convex,
coarsely deeply and very densely punctate ; punctures round. Scutellum
small, longer than wide, more densely squamulate, ogival. Elytra at base
one-third wider than the pronotum ; sides jjarallel and straight for two-thirds
the length, then convergent ; each elytron acutely rounded at tlie inner
apical angle ; disk strongly convex transversely, feebly so longitudinally,
more than twice as long as the head and pronotum together and about twice
as long as wide ; striae somewhat feebly impressed, very coarsely deeply and
closely punctate ; punctures somewhat elongate-oval, intervals nearly flat,
three times as wide as the punctures. Abdomen flat, coarsely and very
feebly punctulate. Legs short and robust, dark piceo-testaceous through-
out ; tibiae short, obliquely truncate, having a single interior terminal spine,
fimbriate at tip with short equal spinUles. Claws very small, strongly
arcuate, having a short distinct tooth near the base. Length (exclusive of
beak) 2.6 mm.

California, 2.

Of Elleschus there are in my cabinet three forms, viz. : A small

species 1.8 mm. in length, pale in color and very densely punctate

on the pronotum, abundant near the Atlantic seaboard ; another

represented by eight very uniform specimens from Kansas, 2.4 mm.

in length, with less dense pronotal punctuation, and a third, above

described, which differs from the other two by the distinct punctures

of the beak and the much coarser pronotal punctuation, as well as in

its more elongate cylindrical form and larger size. The first of those

above mentioned is probably ephippiatns, the second may be distinct

and if so is probably undescribed.

9*

194 NORTH AMERICAN

BRACIIYTARSUS Scli.

B. paillllllis n. sp. — Form short and stout, oval ; pubescence short,
very coarse and dense, piceous-browu mottled with cinereous of which a long
narrow sutural spot at the base of the elytra is the most conspicuous, pubes-
cence of under surface testaceous ; integuments deep black throughout ;
antennae pale testaceous throughout, femora piceous-black, tibiae fusco-
testaceous, tarsi slightly darker. Head and beak together two-thirds longer
than wide, slightly inllexed; surface moderately convex; punctures vario-
late, round, somewhat scabrous, very indistinct and excessively shallow ;
eyes moderate in size, rather prominent ; beak beginning at the eyes, flat,
wider than long, trapezoidal, limited laterally by the straight elevated mar-
gins ; labrum small, wider than long, broadly rounded anteriorly, slightly
paler in color ; antennae slender, about as long as the bead, third joint much
longer than the fourth, about as long as the second. Prothorax from above
widest at the base where it is about one-sixth wider than long ; sides rather
strongly convergent to tlie apex near which they are almost straight, feebly
arcuate in the middle and distinctly siuuatfe for a short distance in front of
the basal angles which are acute and quite prominent ; apex broadly arcuate,
about one-half as long as the base; disk very convex, impressed along the
somewhat reflexed and acute basal ridge, very coarsely moderately closely
and somewhat irregularly punctate, punctures round, variolate, and very
>ihaHow ; basal ridge obtusely and posteriorly angulate in the middle, sides
straight and posteriorly flexed near the basal angles, properly terminating
at the latter. Elytra at Ijase equal in width to the pronotum ; sides parallel
and feebly arcuate for two-thirds the length from the base, thence more con-
vergent, conjointly abruptly and obtusely rounded behind : disk moderately
convex, two-fifths longer than wide and about two-thirds longer than the
pronotum ; striae narrow, deeply impressed, coarsely but not very distinctly
punctate, intervals slightly convex, finely ruguloso-punctate. Scutellum
minute, oval, slightly transverse. Pygidium sliglitly wider than long, feebly
lonvex, coarsely and very feebly punctate. Abdominal segments closely and
rather feebly punctate, punctures of unequal sizes. Legs rather robust ;
tibiae sparsely fimbriate at tip with short stiff setae ; posterior tarsi equal in
length to the tibiae, first and second joints equal in length, the latter slightly
more densely pubescent, fourth slightly longer and thinner, narrow at base,
third one-half as long as the second, deeply bilobed, densely pubescent be-
neatli ; claws moderate;, deeply cleft at the .sides. Length 1.3-l.tS mm.

Milford, Delaware, 4.

The smallest species described troni our territories and somewhat
allied to to)))entosiiSj from which it ditlers in its smaller size and
mottled elytra; the basal carina properly terminates at the basal
angles which are slightly callous, but the lateral edges of the i)ro-
notiim are acute and well marked tor a very short distance ante-
riorly, much less however than one-third the pronotal length. The
posterior margin of each elytron is distinctly sinuate near the interior
apical angle, causing the latter to have the form of a very small acute
cusp.

COLEOPTKRA. 195

NOTES AND ERRATA.

Part I.

Page 8. — The species described as Harpalus opaciis is in reality an Aniso-
dactylus. Tliere is one discal puncture on the elytra at the
posterior third, and two setigerous punctures at each anterior
angle of the epistoma. The specimen described is not a male but
a female ; I have since discovered a male amongst some discarded
duplicate material ; it is more shining than the female type.

Page 11. — //. convicior should probably be placed as a synonym of ccmonictis,
and canonicus, Instralis a.i\cl' (enescens placed ks varieties of riridi-
lEiieus, at least until renewed study can be made with greatly
increased material.

Page 31. — I am informed by Mr. Pauvel that Dr. LeGonte's Edaplmf nilidus
has not four basal pronotal foveae but six, and that A\ luadentus
is probably a synonym. In order to decide this question, how-
ever, it is necessary to examine Dr. LeConte's original type of E.
iiitidus which I have been unable to do.

Page 50. — P/. parndum is perhaps a very small and singularly deformed
specimen of excavattmi, a"nd the name should therefore be entered
as a synonym of that species until future collecting can decide
upon its true relationship.

Page 57. — 6th line from bottom, /or " middle" read " base."

Page 58. — After Fig. l,Jor "antenna" read "maxillary palpus."

REVISION OF THE CUCUJIDAE.

Tr. Am. Ent. Soc. XI. ; Feb. 1884.

Synonymical notes.

Through the kindness of M. A. Orouvelle, who has provided me with types
of many species of this family, I am enabled to x^i't'sent the following
remarks : —

Page 72. — Sil. quadricolUs Guer. — This is not the species indicated but Cath-

artiis cassm Reiche.
Page 73. — ^il. advena, rectus, and 0])acidus should be read Cafliartiis adrena,

rectus, and opacidus.
Page 76. — By renewed observation I am quite positive that Prostomis americuna

Cr. is an absolute synonym of manddndaris Fab.

M. Grouvelle considered that Cath. opacidus Lee. might be a synonym of
Cath. ijitadricoUis Guer., but from a direct comparison of the types I find that
they are quite distinct. The above author also informs me that Lwrnoph.
loiKjicornis Mann, is a synonym of piisillus 'J, .

196 NOKTII AMERICAN

INDEX.

PAGE

Bembidion vernula n. sp 62

acticola n. sp 63

militare ii. sp 65

vividum n. sj) 66

dejectum n. sp 67

Tachys occultator n. sp 6ft

Barytachys glossema n. sp 70

gemellus n. sp 71

Pterostichus manhattanis ii. sp 72

Cratacanthus dubiiis J$eaiiv 74

litoreus n. sj 74

bisectiis n. sp TT)

texaniis n. sj) 75

Discoderiis pingiiis ii. sp 75

Selenophorus perpolitus n. sp 76

Stenolophus scitulus n. sp 78

Bradycelhis parallelus Cliand 79

Glycerins nitidus l'<'j 7fl

Bidessns nigriniis n. sji 8(i

Helophorus pallens n. sp 81

Philhydrus angiistulus n. sj 8:-?

Colon decoris n. sj) 84

Eiimicrus vestalis n. sp 85

punctatus n. sp 86

Bryaxis facilis ii. sp 87

Arthmius gracilior n. sp SS

Batrisiis denticollis n. sp 8J)

virginiae n. sp 90

aterrimus n. sp 91

Eiiplectus canaliculatus Li-c 96

puinilus Lt'c 97

debilis \.<-r 98

longicollis n. sj 99

difficilis l-.c 100

congener n. sp 101

sexualis n. sp K'3

spinifer n. sp 104

linearis I-ir li*6

inter ruptus I.i-c !<•"

confluens Lit- 108

COLKOl'TEKA. ] 07

PAGK

Euplectus pertenuis n. sp 100

cavicollis Leo 110

criiiitus Jhend Ill

capitulum ii. sp 112

decorus n. sp 113

arcuatus Lee 114'

leviceps n. sp llf,

ruficeps Lee ll(j

Thesium cavifrons Lee 117

laticolle n. sp 118

Faliscus bicanalis n. sp 120

Nicotheus tibialis n. sp 121

Polystoma Stepli 123

Emplenota Casey. ..., 123

Quediiis silvicola n. sp 123

Belonuchus moquinus n. sp.. 125

Xantholinus fucosus ii. sp 126

Cryptobium capito n. sp 127

convergens n. sp 129

parallelum n. sp 130

proximum n. sp ' 132

Lathrobium tricolor n. sp 133

inops 11. sp 135

Orus picipes u. sp 137

punctatus ii. sp 138

Stilicus latiusculus n. sp 139

Erchomus flavidus n. sp 140

Conuriis versicolor n. sp 142

imbricatus u. s]) 143

occultus n. sp 145

corticola n. sp 146

setifer n. sp 147

Bolitobius facilis n. sp 148

occiduus n. sp.. 150

Bryoporus parvulus n. sp 151

Mycetoporus inquisitus n. sp 152

Apocellus bicolor n. sp 154

sphaericollis Say 155

crassicoriiis ii. sp ,.... 156

gracilicornis n. sp 157

brevipennis n. sp 158

analis Lee 159

stilicoides Lee 161

Ptilium fungicola n. sp 162

truncatum n. sp 163

Trichopteryx radicola n. sp 163

funginus n. sp 164

longipennis n. sp 166

108 NORTH AMKHICAN COLKOl'TKRA.

PAGE

Cryptamorpha Hubbardi n. sj I(j7

Rhizophagus procerus n. sp I(j8

Monocrepidius finitimus ii. sp 1(59

Drasterius fretus n. sp 170

Anthaxia strigata L('(^ 173

aeneogaster L. ft a 174

nanula ii. sp 174

simiola n. sp 17")

aenescens n. sp 175

Lyctus parvulus n. sp • 175

Serica parallela n. sp 176

porcula n. sp 177

Diplotaxis levicula n. sp 178

popino n. sp 17W

Anomala luteipennis Lee 180

binotata <rvll • 180

Strigoderma pimalis n. sp 181

Disonycha procera ii. sp 182

Bruchus cubiculus n. sp 18:i

Epitragiis ovalis n. sp 184

Blapstinus pimalis n. sp 185

Mordella deserta n. sp 18t!

Xylophilus densus n. sp 187

Notoxus delicatus ii. sp 18!>

Anthicus facilis ii. sp 190

Rhynchites naso n. sp 190

Anthonomus moleculus n- sp 191

Elleschiis califoniicus n. sp 193

Brachytarsus paululus n. sp 194

I'liiladelphia
Com. INS Pkintino House,
7(15 Jayue Street.

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