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 twothirds 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 twothirds 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 divergent 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, fiavotestaceous, 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 Columbia, 2.
Just outside of the upper epipleural edge there is a row of small closely placed non-setigerous punctures. This species probably belongs 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 piceousblack, anterior margin extremely narrowly, sides and base more broadly brownish-testaceous, translucent; elytra brownish-testaceous, very pale, indefinitelycloudedwithdarkercastaneous-browntowardtlieapicesandalong 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, irapunctate 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 rugulose 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 structure in many parallel cases. The three rows of elytral punctures in Bolitobius ai)pears to be a very constant character, and taken in connection 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 maintained 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 punctuation 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 ; prothorax (lark reddish-testaceous; elytra dark piceo-testaceous, very indelinitely darker and brownish along the sides, and near the suture ; abdomen piceousblack, apices of tlie segments jjaler ; under surface of body intense black, legs pale testaceous, oral organs and basal joints of antennae same, remainder 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 twothirds 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 compressed.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 impressedalongthesuture;puncturesfine,suturalrowofeightornine,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. Abdomen 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 satisfactory 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)iceousbrown, 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 granulated,moderately pro^iinent, situated at more than twice their length from the posterior angles ; interocular surface polished, not punctate ; supraanteunal tuberculations very prominent, elongated, nearly parallel ; antennaeslightly 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 emarginate 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 depressed, 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 impressedalongthemiddleofitsundersurface.
Female. — Sixth segment very broadly and evenly rounded behind throughout; 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 infuscate 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. Prothorax 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 slender,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 propriety of placing the specimens with tiiis species may be questionable, 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 sphrtricollis. 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 convergentandarcuate;broadlytruncatebehind;interocularsurfacepolislied, impunctate, minutely and conspicuously rugulose near the anteunal tuberculations ; 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