Horn.] O JO [Dec. 19, 



angles gives them an aspect of being more prominent than in 

 Schaumii. The tarsi are formed similarly to that species, but 

 a little longer. The next species is also closely allied, but 

 the legs lose their fossorial character and become ambulato- 

 rial. 



This species is widely distributed in the Pacific region. 



C. pilosicollis Horn. 



Closely related to angularis, but usually flatter above, and, when recently 

 captured, with longer hairs. The head and thorax do not differ especially, 

 except that the transverse impression behind the anterior angles is more 

 distinct, and the median line more marked. The legs are ambulatorial, the 

 tibiae slender at base. The tarsi are as long, or very nearly so, as the tibiae, 

 slender, compressed and scarcely wider at base. Length .40-.50 inch ; 10- 

 13 mm. 



Specimens recently captured have moderately long hair on 

 the thorax, and the elytra have whitish spots arranged in 

 irregular transverse strigse, these characteristics are evanes- 

 cent and are of no specific value. If the figure of the legs 

 of C. armatus Walker be correct, the name should have 

 priority over pilosicollis (see Westw. Thesaurus, pi. xiv, fig. 1). 



Occurs in California, Nevada and Oregon. 



C. crinitus Lee. 



Black, opaque, body above clothed with long, yellowish hairs, which are, 

 however deciduous. Head densely punctured, clypeus a little wider than 

 the head, in front feebly arcuate, sides rounded, anterior margin broadly 

 reflexed. Mentum plate smooth, transversely oval, pointed behind, at 

 bottom flat, margins reflexed more widely at the sides. Thorax broader 

 than long, between the basal angles wider than at apex, sides moderately 

 arcuate, anterior angles moderately prominent in front, within foveate and 

 pubescent, posterior angles triangular, smooth, limited within by an oblique 

 impression, disc of thorax flat, a vague median line, surface very coarsely 

 punctured. Elytra flat on the disc, very vaguely bicostate, surface coarsely 

 foveate punctate. Pygidium coarsely, sparsely punctate. Body beneath 

 coarsely punctate, more shining. Legs ambulatorial, anterior tibia? bid^n- 

 tate near the tip, middle and posterior slender at base, gradually broader to 

 tip. Tarsi nearly as long as the tibiae, compressed. Length .50 inch ; 13.5 

 mm. PI. iv, fig. 6. 



I have seen but one 9 of this species. It is closely allied 

 to pilosicollis and Knochii, but differs from both by the 

 clypeus being wider than the head between the eyes. It 

 differs also from the former by the absence of transverse 



