678 Coleopterological Notices, VII. 



parts of the femora densely clothed with white scales, only sparsely inter- 

 mingled with isolated brown scales and solely toward the sides of the under 

 surface. Head and eyes well developed, the latter below the middle sep- 

 arated by scarcely % of their own width; beak and antennae black, the 

 second funicular joint shorter than the first but fully as long as the next two 

 combined. Prothorax not quite as long as wide, the sides subparallel and 

 broadly, somewhat unevenly arcuate, oblique and sinuate for a short distance 

 at apex, the latter broadly sinuato-truncate ; surface completely concealed, the 

 scales very broadly and deeply concave. Elytra fully % longer than wide, % 

 longer than the prothorax and about }^ wider, the sides broadly arcuate; sub- 

 apical umbones small and feeble ; striae concealed, the crust of scales broadly 

 convex on the intervals. Length 2.8 mm. ; width 1.0 mm. 



Colorado. 



This species is evidently more allied to subcupreus than to the 

 Pacific coast species in the form of the antennae and general 

 facies ; it is decidedly larger than subcupreus, and differs in the 

 ornamentation of the elytra. In both of them the triangular 

 glabrous space at the middle of the occiput is unusually large. 



C. dispersus. — Cylindric-oval and convex, densely clothed with a crust 

 of moderately large overlapping scales, which are uniformly white beneath, 

 on the base of the beak and on the femora except above and toward apex of the 

 latter; scales of the upper surface dark chocolate-brown, interspersed vpith 

 isolated white scales toward the sides and median regions of the pronotum, 

 sometimes not especially more evidently so toward base, and, on the elytra, in 

 two transversely and posteriorly arcuate regions before and behind the middle 

 and also at apex. Head more largely clothed with white scales, the eyes large, 

 broad and well developed, separated at lower fourth of their extent by scarcely 

 }q of their own width, the inner margins thence widely and rapidly diverging 

 inferiorly and strongly arcuate. Prothorax distinctly shorter than wide, the 

 Bides parallel and scarcely arcuate, becoming oblique and sinuate near the 

 apex; sculpture entirely concealed, the scales generally more or less impressed 

 along their median lines, especially toward their bases. Elytra ratljer more 

 than }4 longer than wide, twice as long as the prothorax and 3^ wider, just 

 visibly arcuate at the sides; humeri rounded for a very short distance to the 

 prothorax, the prominence scarcely distinct ; subapical umbones feeble ; striae 

 concealed, the scaly crust but feebly convex along the intervals. Length 

 2.2-2,5 mm. ; width 0.8-0.95 mm. 



Canada (Ontario); Kentucky. 



The beak in the type is rather slender but becomes unusually 

 rapidly and conspicuously wider toward base ; it is probably a 

 female. This species differs from the preceding in its still more 

 narrowly separated eyes. 



