ClCINDELID/E AND CARABID/E 47 



*Notiophilus chihuahuas n. sp. Parallel, rather depressed, shining, 

 black, the upper surface with but very feeble metallic lustre; head sub- 

 equal in width to the elytra, with very coarse subocular grooves and 

 coarse median plicae, the latter some six in number; labrum deep black, 

 opaque, finely medially striate, narrowed at apex, less than one-half 

 wider than long, the apex truncate and only about half as wide as the 

 base; prothorax of the usual form, sinuately narrowed toward base, 

 coarsely, closely punctured laterally and toward apex and base, the basal 

 impressions distinct; elytra with seven impressed discal striae which are 

 strongly and closely punctured, the striae distinct though only obsoletely 

 punctate apically, the inner and outer striae more widely separated, the 

 sutural and marginal distinct and closely punctate, Length 5.4-5.6 

 mm.; width 1.8 mm. Mexico (Sierra Madre Mts., Chihuahua), C. H. 

 T. Townsend. Two examples. 



Resembles senristriatus but differs in the peculiar opaque and 

 anteriorly narrowed labrum and larger size. It is one of the larger 

 species of the genus. 



Notiophilus evanescens n. sp. Small, elongate-oval, rather convex, 

 strongly shining, black throughout, the upper surface with strong bronzy 

 lustre; head decidedly narrower than the elytra, the subocular grooves 

 deep and more acutely impressed than in the preceding, the plicae six in 

 number, the labrum very short and transverse, shining and bronzy; pro- 

 thorax only moderately narrowed and with almost straight sides toward 

 base, the peripheral punctures of the upper surface close-set but notably 

 fine, the basal impressions narrow and rather feeble; elytra more oval 

 than usual, convex, the seven discal striae subequally and rather widely 

 spaced, fine, feeble and finely, remotely punctate even basally, becoming 

 vestigial and scarcely at all punctate behind about the middle, the 

 sutural and marginal striae subsimilar to the others. Length 4.2-4.6 

 mm.; width 1.5 mm. Colorado (Boulder Co.). Six examples. 



Somewhat related to <zneus but differing in the much shorter 

 labrum, much less sinuate oblique sides of the prothorax, with 

 denser pronotal punctures, and in its much smaller size. 



Nebria Latr. 



In this genus, which is much more extended in its range, it is 

 probable that hardly more than a third of our species have been 

 described as a conservative estimate. They are assignable to 

 seven well defined groups, of which the typical species are ingens, 

 gregaria, diversa, metallica, obliqua, virescens and pallipes. These 

 groups are not exactly equivalent to those suggested by LeConte, 

 for in my opinion diversa should be a group by itself and is not 

 associable with ingens and ovipennis; it has very short oval elytra, 



