CICINDELID.E AND CARABID^; 139 



and convex surface, about a fourth wider than the prothorax, the 

 striae punctulate, feebly impressed inwardly but not at all so exter- 

 nally, the five foveae strong. Length (9 ) 12.0 mm.; width 4.6 mm. 

 Pennsylvania LeConte. Locality not indicated in the Levette 

 collection. Apparently not common pennsylvanicus Lee. 



Elytra strongly shining in the male but more or less evidently sericeous 

 in the female 2 



2 Converging sides of the prothorax becoming distinctly sinuate toward 

 the basal angles. Body rather short in form, rather convex, shining, 

 black, the legs dark rufo-piceous, the palpi piceous-black; antennae 

 brown distally; head fully three-fifths as wide as the prothorax, the 

 eyes rather prominent, the impressions short but somewhat deep, 

 distinct, diverging; prothorax not quite a third wider than long and 

 much narrower than the elytra, the sides rounded, converging and 

 sinuate basally, widest at two-fifths from the apex; angles right and 

 very sharply defined, subprominent; base barely visibly wider than 

 the apex; surface convex, rather abruptly though moderately 

 reflexed at the sides, having many punctures basally, except medially, 

 the linear impression deep, less than a third the total length; elytra 

 barely one-half longer than wide ( 9 ) to three-fifths (cf), oblong, 

 with slightly rounded sides, a little wider behind the middle than 

 at base, more than a third wider than the prothorax; surface polished 

 (cf) or not strongly sericeous (9), finely striate, the striae feebly 

 impressed suturally and basally, minutely, irregularly subpunctulate, 

 the scutellar very long, nearly a fifth the total length. Length 

 (cf 9 ) 10.5-1 1.2 mm. ; width 4.0-4.2 mm. California (Lake Tahoe). 



latescans n. sp. 



Converging thoracic sides oblique basally, feebly arcuate to straight, 

 never distinctly sinuate 3 



3 Form stouter, the elytra always distinctly wider than the prothorax; 

 female elytra sometimes very strongly sericeous and faintly brown- 

 ish 4 



Form more elongate and more parallel, the elytra never more than very 

 slightly wider than the prothorax in either sex and never strongly 

 sericeous 7 



4 Prothorax relatively rather large and less transverse, the oblique 

 sides posteriorly generally feebly arcuate to the obtuse but minutely 

 denticulate basal angles. Body unusually stout, oblong-suboval, 

 black and strongly shining throughout (cf), or with the elytra 

 brownish and strongly, subopaquely sericeous (9); under surface 

 and legs piceous or rufescent, the palpi testaceous; head well de- 

 veloped, the impressions feeble and irregular; antennae blackish- 

 piceous; prothorax scarcely more than a fourth wider than long, the 

 base and apex equal, the sides rather strongly rounded, widest near 

 apical third; surface convex, rather thickly punctured laterally 

 toward base, broadly and strongly reflexed at the sides, the linear 

 impression deep and acute; elytra three-fifths (cf) to one-half (9) 

 longer than wide, oblong-oval, slightly widest behind the middle and 

 nearly a third wider than the prothorax, rather finely striate, the 

 striae faintly and closely, minutely and irregularly punctulate, more 



