June-Sept., 1919.] NOTMAN : CaRABIDjE. 233 



sub-prominent, rounded, posterior angles rounded ; side margins, moderately 

 broad, slightly wider and more strongly reflexed behind ; anterior transverse 

 impression indistinct, posterior distinct; median line strong, sub-entire; basal 

 foveas large, round, indistinct, indistinctly rugose and finely alutaceous. 

 Elytra two and one half times as long as the thorax, one and one half times 

 as long as wide ; humeri broadly rounded ; sides nearly straight to apical one 

 third, thence strongly rounded to the apex, indistinctly sinuate at apex; striae 

 deep, distinctly crenate-punctate ; intervals convex, smooth, strongly shining, 

 third interval with three punctures, first at basal fourth on the third stria, 

 second and third behind the middle on the second stria. Legs moderate in 

 length, tarsi of the intermediate and posterior pairs, strongly grooved. Length, 

 6.5 mm. ; width, 2.5 mm. 1 $. 



North America, locality uncertain. Collection C. W. Leng. 



This species seems best placed with P. collaris Say in section D of 

 Leconte's synopsis, from which it would differ by its color, small size, 

 and narrower thorax. 



Platynus foveiceps new species. 



Form elongate-oblong, depressed. Color black, shining, bronzed with a 

 purplish tinge. Head slightly longer than wide, as wide as the thorax at apex, 

 strongly longitudinally rugose, either side, with a punctiform impression over 

 either eye ; antennae slender, reaching the base of the thorax, second joint 

 shorter, outer joints three times longer than wide. Thorax one fifth wider 

 than long, three fourths the width of the elytra, as wide at base as at apex, 

 widest before the middle; sides rounded in front, nearly straight and oblique 

 behind to the strongly rounded posterior angles; anterior angles rounded, not 

 prominent ; apex slightly emarginate ; basal foveae distinct, linear, angles with 

 a strong blunt tubercle ; side margins narrow, very slightly broader and reflexed 

 behind; transverse impressions obsolete; median line strong, entire or nearly 

 so, surface strongly transverse-rugose throughout. Elytra as wide as the 

 thorax at base, two and one half times as long, twice as long as wide; humeral 

 angles broadly rounded, sides moderately and evenly arcuate to near the apex, 

 thence strongly arcuate and faintly sinuate to the apex ; striae moderately fine, 

 impunctate, intervals flat, third with six impressed punctures, first on the third 

 stria. Tarsi grooved. Length, 9.5 mm. ; width, 3.5 mm. 1 $. 



Franktown, Nevada. Collection C. W. Leng. 



This species resembles P. fossiger. It may be distinguished by the 

 strongly rugose head and thorax, the punctiform impressions on the 

 occiput, the basal thoracic tubercles and the thorax flatter behind the 

 middle. 



