3io MEMOIRS ON THE COLEOPTERA 



of the vertex unusually feeble; clypeus short, with close-set punc- 

 tures, each bearing a moderate, slender, decumbent hair; antennal 

 club short, oval, about half as long as the stem; last palpal joint very 

 small, much less than half as long as the club, oval, gradually pointed, 

 the small opaque excavation oval, not extending to apical third; 

 prothorax rather small but of the usual form, the sides parallel in 

 basal half, the punctures moderate in size, deep and very close-set 

 throughout, the erect hairs everywhere long and very numerous, 

 brownish and densely herissate, this being a conspicuous feature; 

 short decumbent hairs whitish and moderately numerous; scutellum 

 densely clothed with long decumbent fine and paler yellowish hairs 

 and without squamulesof any sort; elytra large, a third longer than 

 wide, widest behind the middle, broadly, obtusely rounded in apical 

 third, one-half wider than the prothorax, clothed throughout with 

 very small slender whitish hairs, which are twice as close as the 

 longer hairs of river si and dense along the suture; pygidium with 

 dense minute whitish hairs of the same sort, concealing the integu- 

 ment except laterally, and almost wanting narrowly around the 

 apex, the fine whitish hairs rather sparse on the abdomen medially; 

 all the segments closely connate, except the last; long shaggy hairs 

 beneath brownish, very dense and conspicuous. Length ( 9 ) 23.0- 

 23.5 mm.; width 11.7-12.0 mm. California (Los Angeles Co.). Two 

 specimens received from a different source from those of riversi. 



crinicollis n. sp. 



Body stout, pyriform, strongly convex, pale red-brown, feebly shining, 

 the vestiture white or very nearly so throughout; head with rather 

 long, coarse and very dense hairs, with others sparse, fine, long and 

 erect; clypeus concave, finely, very densely punctate, with dense and 

 rather more squamiform decumbent hairs, the angles rounded, the 

 apex broadly arcuate; last palpal joint much less than half as long as 

 the antennal club, not very stout, gradually and somewhat obliquely 

 acute at apex, with a very deep irregularly oval excavation from 

 near the base to barely beyond apical third ; prothorax one-half wider 

 than the median length, of peculiar form, trapezoidal, the sides 

 converging from base to apex and with only a trace of the medial 

 angulation, serrulate basally, even apically, the base strongly lobed, 

 with the angles nearly right, slightly rounded; apex feebly sinuate; 

 surface finely and closely but not confluently punctate, with dense 

 narrowly subsquamiform decumbent hairs and many erect finer 

 bristling hairs, the vestiture a little denser broadly parallel with the 

 sides; scutellum extremely densely, coarsely and decumbently pu- 

 bescent throughout; elytra a fourth longer than wide, fully one-half 

 wider than the prothorax, widest slightly behind the middle, thence 

 broadly, subcircularly rounded behind, each with three very broad 

 feeble ridges, very finely, feebly and densely punctulate throughout 

 and with rather short and moderately coarse, close-set hairs, dense 

 along the suture; pygidium much wider than long, narrowly parabolic 

 apically, densely clothed with short and stout but scarcely squami- 

 form decumbent hairs, the abdomen similarly but not quite so densely 

 clothed; hind tarsi three-fourths as long as the tibiae; first tooth 



