DERMESTIDJE 197 



narrowed from the humeral prominences but broadly, obtusely rounded 

 at apex, deep black, shining, the elytra feebly rufescent posteriorly; 

 pubescence obscurely luteous and moderately distinct; head small, finely, 

 rather sparsely punctate, the ocellus small but distinct; antennae pale, 

 with fuscous club, the cavity extending fully to basal fifth of the prothorax; 

 club unusually long, its basal joint two-thirds longer than wide, the 

 second two-thirds as long as the first, the suture rather deep; prothorax 

 the length always being measured along the median line twice as 

 wide as long, distinctly narrower than the elytra and a third as long, the 

 sides strongly arcuate, becoming subparallel in about basal half, the 

 punctures minute as usual; elytra with moderate humeral swellings; 

 punctures moderately large but very shallow and subasperate, subtri- 

 angular, separated by two or three times their diameters; under surface 

 closely punctured, becoming finely, feebly and sparsely so inwardly on the 

 metasternum. Length (c?) 1.7-2.25 mm.; width 0.95-1.2 mm. Utah 

 (southwestern), -Weidt, and California (Inyo Mts. 8000 ft.), Wickham. 



In my former treatment of this genus I placed the type of this 

 species with that of fuscidava, but now find that it is not the same 

 specifically, differing in its narrower and shorter prothorax and 

 stronger elytral sculpture; the antennal club of the male is a little 

 narrower than in that species and longer than in uteanum; the 

 elytral punctures are not as strong or close as in the latter species 

 but more so than in nephianum. From fuscuhim Lee., inhabiting 

 the lower Colorado and Gila valleys, it may be known by its slightly 

 stouter form and less close or conspicuous vestiture, and also by the 

 more elongate and darker antennal club of the male. The five 

 examples at hand are all males and I have not seen the female. 



Cryptorhopalum bakeri n. sp. Evenly oval, moderately stout and 

 convex, shining, black, the elytra rather pale rufous though somewhat 

 blackish basally; pubescence obscure, not dense, even and not conspicu- 

 ous though evident, short, ashy and much closer on the under surface; head 

 finely, not densely punctate, broadly concave on the front, the ocellus 

 small; antennse testaceous, the cavity extending not quite to the middle 

 of the prothorax, testaceous, the club oval, piceous-black, with its first 

 joint distinctly shorter than the second, the suture moderate; prothorax 

 not quite twice as wide as the median length, the lobe strong, truncate; 

 sides strongly converging and evenly, moderately arcuate, the punctures 

 small, perforate, separated by about four times their diameter; elytra 

 fully a third longer than wide, wider than the prothorax but evenly oval, 

 so that the sides from a dorsal viewpoint are almost evenly coarcuate with 

 the thoracic sides, with the humeral swellings longitudinally prominent; 

 punctures minute and very widely separated; sterna strongly, closely 

 punctate, the abdomen much more feebly and irregularly; legs rufous in 

 great part. Length (9) 2.35 mm.; width 1.35 mm. California (moun- 

 tains near Claremont), C. F. Baker. 



