534 GoleojJterological Notices, VI. 



1. C. serricollis Lee. — Proc. Acad. Nat. Sci., Phila., IHGfi, p. 356 

 (Pristost'elis). 



Oblong, strongly convex, j)olished, l)lack, the elytra and legs 

 throughout pale rufo-ferruginous ; abdomen black ; antennae 

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

 and very 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 transversely impressed pale apical prolongation ; labrum 

 blackish, setose, strongly rounded at apex ; eyes moderate in size 

 but prominent and distant from the base; antenufe stout and 

 strongl}' serrate, barely 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 feebl}' 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 ; margins 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 very broadly rounded behind, strongly and rather 

 sparsely punctate, the punctures gradually' fine behind ; epi- 

 pleurpe narrow as in Trichochrous, dilated toward base. Length 

 5.0 mm.; width 2.0 mm. 



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

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

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

 middle tibire 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 slightl3' unequal. 



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

 somewhat shining, black, the tibiic and tarsi slightly piceous; antennai pic- 

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

 even and cinereous, intermixed with nximerons erect bristling seta*, whicli are 

 shorter, denser and in great part pale on the elytra. Hcnd three-fonrths as 

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



