3o MEMOIRS ON THE COLEOPTERA 



width 4.75 mm. Lake Superior. [B. picipes || Kirby, Richardson, 

 Faun. Bor. Am., IV, p. 116; B. kirbyi Lee., Pr. Acad. Phila., 1854, 

 p. 114] kirbyi Lee. 



Form stout, less inflated behind but almost similar though much smaller, 

 deep black above, piceo-rufous beneath; head nearly similar but 

 less parallel behind the eyes, very densely sculptured, the posterior 

 subelevated flattened area indistinct; prothorax much shorter, dis- 

 tinctly less than half as long as the basal width, of the usual outline, 

 the punctures less minute than in kirbyi but almost equally dense, 

 the narrow interspaces more shining, the vestiture rather longer, 

 coarse, blacker, aggregated into a few more prominent streaks and 

 slightly variegated with small fulvous areas; scutellum relatively 

 larger, densely clothed with coarse and deep black hairs; elytra 

 similar in general form though not quite so inflated posteriorly, 

 equally broadly rounded behind, the surface opaque, with extremely 

 dense, minute and scarcely distinguishable punctures, the vestiture 

 short, dense, not fulvous but blackish-brown, largely interspersed 

 with single silvery hairs on the flanks, with condensed black vittse 

 on the alternate intervals, the second and third transversely united 

 near basal third of the elytra, the transverse black subposterior 

 spot toward the sides transverse; lunate inclosure in the type very 

 indistinct, marked principally by more even short pubescence than 

 the rest of the surface, the defining spots very minute, sparse and 

 composed each of a very few yellowish-cinereous hairs; entire under 

 surface very closely punctate and asperate, with the hairs short 

 but coarse, close and conspicuous. Length (cf) 6.5 mm.; width 

 3.8 mm. Colorado (Leadville), Wickham vafer n. sp. 



Form much more elongate than in either of the two preceding, though 

 very sensibly inflated posteriorly, black throughout, the tibiae and 

 tarsi and sometimes the under surface very feebly picescent; head 

 almost evenly convex, strongly, very densely punctate and with 

 short, close and very coarse hairs, the two ocellae-like spots distinct 

 but black, observed under high power to be impunctate but finely, 

 feebly chagrined; prothorax well developed, distinctly less than half 

 as long as the basal width, somewhat compressed apically, the sides 

 thence broadly diverging and feebly arcuate to the very acute basal 

 angles; surface finely but distinctly, deeply, very closely punctate, 

 with shining thin interspaces, the pubescence rather long, black, 

 with indistinctly fine aggregated lines and very slightly variegated 

 with cinereous; scutellum densely velvety-black; elytra about a 

 fourth longer than wide, evenly, subcircularly rounded behind in 

 barely apical third, the surface finely, very densely punctate, the 

 short blackish-fulvous pubescence abundant, the blacker aggregated 

 vittiform areas smaller, fewer and much less evident than in the 

 two preceding, the subposterior lateral black area evident, the en- 

 closed transverse lunate area very indistinct, in the form of an almost 

 even chevron, the defining spots of cinereous hairs small, sparse and 

 evanescent; under surface dull, very densely sculptured throughout 

 and covered rather closely with short and only moderately coarse 



