20 



The pronotum is elongate, much narrower than the elytra, one-third longer 

 than wide; broadly rounded behind; the sides subparallel on the hinder half, 

 somewhat wider at the middle, rather strongly narrowed in front of the middle, 

 and very broadly rounded in front; the punctures moderate and very close on 

 the disc, very dense and strongly granulate on the sides, much smaller, dense 

 and finely granulate at the front margin; the median line smooth and slightly 

 elevated, stronger behind. 



The elytra are twice as long as wide; slightly arcuate at the base; the sides 

 nearly parallel for over half the length then gradually arcuately narrowed to 

 the rather narrowly rounded hind margin as viewed from above, narrowly 

 rounded at the apex; the striae narrow, but rather deeply impressed on the disc 

 and declivity, finely but distinctly impressed on the sides; the strial punctures 

 small and closely placed, becoming very small on the declivity; the interspaces 

 wider than the striae, moderately convex on the disc and declivity, flattened on 

 the sides, strongly granulate, with a few small tubercles uniseriately placed on 

 the declivity. 



The venter is rather coarsely sparsely punctured, the last ventral strongly 

 convex, rather finely, closely, roughly punctured; the prothorax below finely 

 asperate in longitudinal rows, the punctures indistinct. 



The type is from Colorado. Only one sex is represented. 



Pseudocryphalus, new genus. 



The form very stout; the pronotum feebly arched; the head slightly 

 visible from above; the pubescence of the dorsal area scale-like; the antennal 

 funicle 5-segmented, the club narrow, compressed, elongate, with three trans- 

 verse sutures; the eyes narrow, elongate and feebly sinuate in front; the 

 pronotum much wider than long, very strongly constricted in front, the cephalic 

 margin practically unarmed, not acutely margined on the sides or behind, the 

 rugosities of the disc very few; the elytral base very strongly elevated at the 

 scutellar region; evidently punctate-striate ; the two first ventral sternites of 

 the abdomen subequal in length and each as long as the next two united; fore- 

 coxae contiguous, prosternum very short; the mentum as wide as long, with 

 very long plumose hairs; the tarsi slender, retractile; the tibial teeth long and 

 slender. 



The type is P. hrittaini, n.sp., described herewith. 



Pseudocryphalus brittaini, n.sp. 



Length, 1.9 mm.; stout, black, with brown and gray scales; the front 

 plano-concave, with a strong transversely arcuate impression behind the 

 epistoma, the middle line impressed, clothed with stout pubescence, becoming 

 long, dense and pale on the epistomal margin, with a rather coarse granule 

 behind the impression on each side the middle line; the eyes long, narrow, 

 extending upon the ventral surface. 



The pronotum twice as wide as long; the sides very strongly rounded behind 

 and very strongly constricted in front; the front margin broadly emarginate at 

 the middle; very densely subgranulately punctured, clothed with brown and 

 grey, very stout pubescence, the grey predominating on the sides and behind; 

 the cephalic margin unarmed or nearly so, somewhat elevated, with pale fine 

 pubescence and brown, elongate, elevated scales; with three pairs of elongate 

 recurved rugosities in a longitudinal row on the middle of each side in front, 

 the first pair on the front margin. 



The elytra as wide as the pronotum, slightly less than one half longer than 

 wide, the basal margin very strongly elevated, recurved and coarsely serrate in the 

 scutellar region; the sides subparallel on the basal half, broadly rounded 

 behind; the striae distinctly rather strongly impressed, the strial punctures 



