112 CASEY 



Body larger, always over lo.o mm. in length, the head well developed 



2 



Body small, always much under lo.o mm. in length, more oblong- 

 oval in form, the head small 7 



2 — Hind femora minutely and remotely punctate 3 



Hind femora coarsely, more closely and conspicuously punctured, at 



least toward base 6 



3 — Sides of the head before the eyes more or less broadly rounded 



and as prominent as the posterior canthus or nearly so; body 



broader in form 4 



Sides more oblique, coming to a more point-like canthus, which is 

 much less prominent than the posterior; body narrower 5 



4 — Body oblong, stout and parallel (9) or feebly cuneiform and 



much narrower (J^), moderately convex, strongly alutaceous 

 above, black, the tarsi and antennal apex rufescent ; pubescence 

 sparse, long, fulvous in color ; head coarsely, very deeply but not 

 densely punctate, the sinus moderate, rather deep, triangular; 

 anterior canthus a little less prominent than the posterior; pro- 

 thorax transverse, two-thirds wider than long, the sides broadly 

 rounded and converging anteriorly, becoming parallel and straight 

 or feebly arcuate in about basal half; apex moderately sinuate, 

 three-fourths as wide as the base, the angles slightlv obtuse but 

 not much rounded ; surface very finely and remotely punctate 

 medially, becoming notably coarsely, deeply and much more 

 closely so toward the sides, the marginal bead moderately strong; 

 scutellum well developed, only moderately transverse, evenly tri- 

 angular; elytra two and one-half times as long as the prothorax, 

 the sides parallel or feebly converging and nearly straight to a 

 little behind the middle, then unusually gradually converging, 

 becoming straight to the acute apex ; surface nearly smooth, w^ith 

 some obsolescent irregular grooves, the punctures moderately 

 coarse, deep and very sparse, becoming not much larger but closer 

 laterally ; prosternum with moderate, perforate, mpre close-set 

 punctures, the process convex, margined except at the middle of 

 the apex ; abdomen very finely but distinctly, sparsely punctate. 

 Length 10. 8-13.0 mm.; width 4.9-6.2 mm. California (Lake 

 Tahoe). Collected only by the writer so far as known. 



montana Csy. 



Body oblong, still less convex, somewhat piceous-black, the tarsi and 

 entire antennas ferruginous; upper surface alutaceous, the hairs 

 rather long, more close-set and conspicuous on the elytra than in 

 motitana; head coarsely, loosely punctate, more finely and more 

 densely on the base of the vertex, the parabolic sinus rather deep, 

 the anterior canthus very broadly rounded, fully as prominent as 

 the posterior ; prothorax formed as in montana but with the hind 

 angles slightly more posteriorly prominent; surface less finely, 

 more closely and very distinctly punctate mediall}', becoming 

 coarsely and still more closely so laterally, the lateral bead simi- 



