534 Goleox)terological Notices, VI. 



1. C. serricollis Lee— Proc. Acad. Nat. Sci., Phila., 1866, p. 35& 

 (Pristoscelis). 



Oblong, strongl}' convex, polished, black, the elytra and legs 

 throughout pale rufo-ferruginous ; abdomen black; antennje 

 blackish, the funicle pale toward base ; pubescence coarse, erect 

 and ver}' conspicuous though not dense, the erect hairs black an- 

 teriorly, intermixed with shorter and more decumbent pale hairs 

 toward the sides of the pronotum, white on the elytra and inter- 

 mingled with a few black hairs toward the suture and base; mar- 

 ginal cilia long and white throughout. Head three-fifths as wide 

 as the prothorax, nearly smooth, strongly and rather sparsely 

 punctured, the impressions feeble ; epistoma rather long, with a 

 thin and transverseh' impressed pale apical prolongation; labrum 

 blackish, setose, strongly rounded at apex ; e3"es moderate in size 

 but prominent and distant from the base; antennte stout and 

 strongly' serrate, barel}' as long as the prothorax, the joints 

 strongly transverse, inserted near their outer margins. Protho- 

 rax scarcely more than one-fourth wider than long, the sides par- 

 allel and feebly arcuate, oblique at apex, the latter arcuate and 

 only two-thirds as wide as the base ; basal angles obtuse but dis- 

 tinct, the apical wholly obliterated ; mai'gins strongly serrate es- 

 pecially before the middle ; disk coarsel}^ and deeply punctate, 

 sparsely toward the middle, not rugose near the sides. Elytra, 

 two-thirds longer than wide, slightly wider than the prothorax, 

 parallel, not verj- broadly rounded behind, strongl}' and rather 

 sparsel^^ punctate, the punctures graduallj' fine behind ; epi- 

 pleurse narrow as in Trichochrous, dilated toward base. Length 

 5.0 mm.; width 2.0 ram. 



New Mexico and Colorado. The male, from which the descrip- 

 tion is taken, has the fifth ventral truncate at apex and feeble- 

 sinuate toward the middle, and the inner spur of the anterior and 

 middle tibite dilated. The ungual appendages do not seem to be 

 quite as long as the claws, and are attached through only about 

 basal half of the latter ; they are also slightl}' unequal. 



2. C. longicollis n. sp. — Elongate, parallel, rather cylindrically convex, 

 somewhat shining, black, the tibite and tarsi slightly piceous; antennae pic- 

 eous-black, pubescence coarse, rather short and somewhat dense, semi-erect, 

 even and cinereous, intermixed with numerous erect bristling setse, -whicli are 

 shorter, denser and in great part pale on the elytra. Head three-fourths as 

 wide as the prothorax, very feebly rugulose, strongly and rather closely punc- 



