COLEOPTERA. 165 ceous ; meso- and metasterna black ; remahider of antennae dark piccousbrovvn. Pubescence rather abundant, sericeous, cinereous. Head moderate, twice as wide as long ; eyes moderate ; interocular surface ratlier feebly convex, 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 onefourth 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 asperate.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, transverse 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, twothirds 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, "ornamented 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-cinereous. 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, testaceous.Pubescenceofheadandprothoraxexcessivelyfine,shortandsparse, almost invisible, that of elytra rather short, sub-recumbent, pale yellowishcinereous 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 behind.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. Abdominalsegments decreasing in length posteriorly, finely and sparsely punctate, 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 distinguished 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 necessarily be distinct, it gives me great pleasure to dedicate the abovedescribed 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 prominent,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 produced,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 semicircular, 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 onethird 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, semicircularly 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 continueswith 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 throughout.
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 extremelyfeeblyemarginate,aboutfour-fifthsaslongasthewidthbetweenthe 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 threefourths 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 terminatingbeforereachingthebase.Abdonninalsegmentsveiyfinelyandrather closely punctate, first four sub-equal in length. Legs rather short, pubescent;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 pubescence, espiicially of the elytra and alidomen. In coloration and structure of the sculellum the two species are entirely different. IIRASTEICICS Esch.
D. fretus n. sp. — Forni very elongated, elliptical. Head black, prothorax 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, becoming finely attenuated and reaching the extreme tip, but with a slight paling of the color ; epipleurae very pale ; under surface black except a small posterior 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 throughout, 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 surface 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 distinction in the structure and shape of the palpi, antennae, and prosternal 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.