338 CASEY 



subcoalescent laterally ; elytra nearly four-fifths longer than wide, 

 between three and four tunes as long as the prothorax and slightly 

 wider, the pvnictures minute, rather feeble, close-set in irregular 

 and wholly unimpressed series, the confused punctures of the in- 

 tervals still more minute and sparse. Length 6. 8-7. 7 mm. ; width 

 2.7-3.3 mm. Utah (Great Salt Lake) brunnescens n. sp. 



5 — Form oblong-oval, moderately convex, alutaceous, castaneous, the 

 under surface piceo-rufous, the legs slightly paler ; head minutely, 

 sparsely punctate, densely so anteriorly, the frontal margin broadly 

 sinuato-truncate, the sides strongly converging and evenly arcuate, 

 the oblique sutures distinct throughout their extent ; prothorax 

 nearly four-fifths wider than long, only moderately narrowed and 

 broadly sinuate at apex, the latter four-fifths as wide as the base, 

 widest just before the basal angles, the sides evenly, broadly arcuate 

 and moderately converging to the apex, the punctures minute and 

 sparse, becoming gradually coarser and close, with the surface 

 rugulose laterally as in the two preceding species ; scutellum 

 small, smooth, parallel, but little wider than long and about 

 an eighth or ninth as wide as the base of an elytron ; elytra 

 as in bf'unnescens^ with unimpressed and but slightly irregular 

 series of extremely minute, not very close-set punctures, those of 

 the intervals still more minute, sparser and irregularly uniseriate ; 

 abdomen shining, minutely, sparsely punctulate and feebly rugu- 

 lose. Length 7.3 mm. ; width 3.0 mm. Utah (Stockton), — H. 

 F. Wickham fraternus n. sp. 



Form oblong-oval, slightly stouter, rather more shining, piceous-black, 

 the under surface and legs dark piceo-rufous ; head nearly sim- 

 ilar but with the oblique sutures more obliterated toward the mar- 

 gin and the minute punctures rather stronger; prothorax less 

 transverse, about three-fourths wider than long and very much 

 more narrowed from base to apex, widest at base, the sides evenly 

 converging, evenly and still more feebly arcuate, the apex sinuate, 

 about two-thirds as wide as the base, the sculpture nearly similar ; 

 scutellum much larger, rather more than a sixth as wide as the 

 base of an elytron ; elytra rather less elongate, more obtusely 

 rounded at apex and more distinctly wider than the prothorax, 

 almost similarly and extremely feebly sculptured, except that the 

 very minute serial punctures are rather more approximate ; abdo- 

 men nearly similar. Length 6. S-7.1 mm.; width 2.S-3.i8mm. 

 Utah (Stockton) umbrosus n. sp. 



Paravius n. subgen. 



Form oblong, parallel, rather feebly convex, polished, castaneous, the 

 under surface and legs rufous ; head rather coarsely, closely 

 and subrugosely punctate, the eyes unusually prominent, the sides 

 before them strongly converging and evenly, moderately arcuate, 

 the apex unusually deeply sinuate and only about half the wddth 

 at the eyes, the oblique sutures feeble, scarcely attaining the mar- 



