Coleopterological Notices, VII. 677 



broadly arcuate from base to apex, straighter or feebly sinuate at about the 

 middle ; apex broadly sinuate ; cupreous scales broadly overlapping and 

 strongly impressed along their median lines ; where denuded the surface is 

 seen to be deeply and moderately coarsely cribrate. Elytra % longer than 

 ■wide, nearly twice as long as the prothorax and ^^ wider, the sides broadly 

 arcuate ; subapical umbones rather feeble ; striae concealed, the scaly crust 

 feebly convex along the intervals. Length 3.4 mm. ; width 1.35 mm. 



California (Siskij^ou Co.;. 



This species is allied to nubilatus, but may be distinguished by 

 a somewhat different pattern of elytral ornamentation, conforma- 

 tion of the front between the eyes, less obtuse upper angles of the 

 ej^es and other characters. The type is probably a male. 



C. Stlbcupreiis. — Narrowly cylindric-oval, convex, covered throughout 

 with a dense crust of moderately large, widely overlapping, dark cupreous 

 scales becoming largely white beneath, at the base of the beak and toward the 

 base of the femora, with some scattered white scales on the head and pronotum 

 with a larger spot near each side of the base of the latter, also with a few 

 widely scattered spots of white scales on the elytra, the more distinct of which 

 are one just behind the humeral callus and two, placed obliquely, on each be- 

 hind the middle. Head moderate in size, the eyes separated at lower fourth 

 by scarcely }4: of their own width ; second funicular joint as long as the next 

 two combined. Prothorax distinctly shorter than wide, the sides aubparallel, 

 becoming abruptly oblique and sinuate for a short distance at the apex, the 

 latter broadly sinuate ; sculpture entirely concealed, the scales impressed 

 along their median lines. Elytra barely }o, longer than wide, f-i, longer than 

 the prothorax and scarcely }^ wider, the sides nearly straight ; apex very 

 broadly obtuse ; humeri but slightly prominent ; subapical umbones distinct ; 

 striae concealed, the scaly crust very convex along the intervals. Length 2.2 

 mm. ; width 0.8 mm. 



Massachusetts. 



A small species, allied in general constitution and nature of 

 the scaly crust, to the larger Californian forms which precede. 

 The single type before me seems to be a male, but sexual differ- 

 ences are very slight and scarcely recognizable in this part of the 

 genus. 



C. oliscurellus. — Elongate and cylindric-oval, convex, densely clothed 

 throughout with a thick crust of moderately large, broadly rounded, widely 

 overlapping scales, which are dark chocolate-brown above, with a slight 

 sprinkling of white on the pronotum and white near the sides toward base but 

 only very minutely at the middle of the base, also sparsely interspersed with 

 white almost throughoiit the elytra, but especially in a dense spot just behind 

 the humeral callus, and in a transverse, posteriorly arcuate, narrow and almost 

 continuous band near apical third; under surface, base of the beak and basal 



