CICINDELID.E AND CARABID^E 183 



smaller than in cribricollis, not quite one-half wider than long, in 

 outline nearly as in cribricollis but more narrowed at base, the latter 

 evidently narrower than the apex; punctures slightly less coarse 

 than in the preceding and evidently smaller than those of the head; 

 elytra fully a third longer than wide, evenly oblong-oboval, being 

 moderately and very gradually inflated posteriorly, fully two-thirds 

 wider than the prothorax; side margins finely testaceous as usual; 

 striae rather fine, very even, the punctures rather strong, unevenly 

 spaced but not or only slightly exceeding the striae in width, the 

 seventh stria obliterated but represented by a regular series of dis- 

 tinct punctures; intervals nearly flat, with the punctures irregularly 

 disposed, small, rather more distinct than in cribricollis though 

 much smaller than those of the striae, about as numerous as in that 

 species. Length (9 ) 10.5 mm.; width 3.75 mm. Colorado (Boulder 

 Co.) rupimontis n. sp. 



13 Form less broad than in cribricollis, the size smaller, feebly convex, 

 strongly shining throughout, blackish-piceous, the under surface 

 and legs nearly as in rupimontis, the elytra very gradually becoming 

 testaceous laterally and basally; hairs nearly as in cribricollis; 

 head comparatively small, nearly as in the latter species throughout, 

 except that the neck is somewhat narrower, the antennae similar; 

 prothorax nearly similar throughout; elytra fully a third longer than 

 wide and two-fifths wider than the prothorax, the stiiae and intervals 

 nearly similar; male with fully the posterior half of the last ventral 

 abruptly totally devoid of punctulation, in a way not evident in 

 the male of cribricollis. Length (cf) 8.4 mm.; width 3.2 mm. 

 British Columbia (Caribou District) marginata Kirby 



Form moderately slender, somewhat more convex, piceous-black, the 

 elytra rufo-piceous, gradually testaceous toward the humeri; under 

 surface blackish, paler medially, the legs pale; pubescence scanty, 

 stiff, yellowish, moderately short; surface very shining throughout; 

 head rather small, with unusually narrowed neck and very prominent 

 eyes, the punctures very coarse, deep, close-set, broadly wanting 

 antero-medially; antennae slender, testaceous; prothorax throughout 

 nearly as in cribricollis, except that the apex is relatively narrower, 

 the base being decidedly broader than the distance between the 

 broadly rounded apical angles, the punctures also are rather less 

 close-set; elytra also very nearly as in cribricollis but narrower and 

 with the outer angle at apex much more broadly and less abruptly 

 rounded; striae and general punctuation even finer and more super- 

 ficial; male with the last ventral as in cribricollis. Length (cf) 

 9.5 mm.; width 3.3 mm. New Hampshire (White Mts.). 



alticola n. sp. 



14 Larger species, not under 10 mm. in length, the elytral sculpture 

 very fine and feeble 15 



Small species, much under 10 mm. in length, the elytral sculpture 

 strong 16 



15 Form stout, very moderately convex, shining throughout in both 

 sexes, piceous, the head and prothorax but slightly paler and more 

 rufous than the elytra, which are sometimes very faintly paler 



