446 Coleopterological Xofices, VI. 



not quite as long as wide, much longer than the prothorax, clis- 

 tinctl}^ narrowed behind from the base; external apical angles 

 right and but slightl}- rounded ; disk coarseh% feebly and iraper- 

 fectl}' imbricate and fineh', subtransverseh' strigilato-reticulate. 

 Abdomen with the erect black seta? only moderate in length but 

 distinct to the base. Length 1.8 mm.; width 1.2 mm. 



District of Columbia and Massachusetts. This is an isolated 

 species, in no way closely related to basalts., differing in its larger 

 size, more transverse and much less conical pi'othorax, and in its 

 longer and sparser pubescence. It difters most radicall}^, however, 

 in the male sexual characters, the fifth ventral in that sex being 

 broadly sinuate in more than median two-thirds ; the sinuation 

 rounded and about ten times as wide as deep, the sixth segment 

 having a deep rounded sinuation in about median third. The 

 epipleurffi are rather narrow but extend to the elytralapex, gradu- 

 all}' vertical externally towards base, glabrous but with a few 

 sparse hairs posteriorly. The two specimens from the last named 

 locality, since received, do not differ in any wa^- from the original 

 female type from the District of Columbia. 



13. C crassa Grav. — Mierop. p. 190 (Tachyporns); Er. : Gen. Staph., p. 

 222. (Conurus); Horn: Tr. Am. Eiit. Soc, YI., p. 110; mwsta Say, Trans. 

 Am. Phil. Soc, IV. p. 466 (Tachyporns). 



Stout, oval, strongly convex, blackish, the base of the elj'tra 

 and basal margin of the pronotum sufl'usedly rufescent ; abdominal 

 segments slightly paler at apex, especiall}' the fifth ; base of the 

 sixth also largely rufous; legs dark rufous; last joint of the an- 

 tennai yellow ; pubescence rather coarse and moderateh' dense. 

 Length 2.3-2.7 mm. ; width 1.5-1.8 mm. 



NcAV York and North Carolina (Asheville) to Wisconsin (Bay- 

 field). This is a common and widely' distributed species of large 

 size,beingmuch the largest American representative of the genus. 

 The male has the fifth A'entral perfectl}^ simple at apex, the sixth 

 having a very large and deep, almost circularly rounded emargina- 

 tion, and there are numerous long black setje on the abdomen 

 beneath and at the sides as far as the base. The epipleurte are 

 ver}' narrow, attenuate behind, not attaining the elytral apex, 

 glabrous and polished throughout and becoming strongly- vertical 

 toward base. The el3tral sculpture is not imbricate, each of the 

 minute punctures having two short divergent lines extending 

 posteriorly, and the scutellum is parabolic and rounded at tip. 



