78 GEODEPHAGA — CARABIDAE. 



h» Sides of thorax less rounded ; elytra oblong ovate, 

 sides slightly rounded. 



Bronze or greenish-bronze; antennae brown-black, apex 

 somewhat reddish ; legs red, femora darker. Thorax less 

 narrowed in front and behind than in P. littoralis ; striae 

 on elytra rather feebler ; body slightly less convex. L. 3 1. 

 Common. P. chalceus, Marsh. 



TRBCHIDEA. 



A, Apical joint of the palpi conical, pointed at apex. 



a. Elytra jointly rounded, covering abdomen, with dis- 

 tinct striae. 



Tooth of mentum generally double ; eyes large and 

 prominent ; first stria on elytra turned round at the apex 

 and running some distance again forw^ard, being here deeply 

 impressed. Trcchus, Clairv. 



6. Elytra separately rounded, not completely covering 



abdomen, without striae. 

 Tooth of mentum blunt ; eyes small and flat ; fourth 

 joint of anterior tarsi with a curved spine beneath. 



Aepris, Leach. 



JB, Apical joint of palpi very thin, awllike, but nearly as 

 long as the thick penultimate joint. 



Tooth of mentum pointed ; eyes prominent and hairy ; 

 fourth joint of anterior tarsi with a curved spine beneath ; 

 body hairy, especially the elytra, the first stria on which 

 is not curved again forward at the apex. 



Pe r i I cp t u s, Schaum. 



TrecJivs, 



A. Elytra hairy and narrow. 



a. Kljtva red-yellow, with a broad, black, common, 

 transverse band behind middle. 



Head, thorax and legs red-yellow, forehead brown. 

 Thorax almost heart-shaped, posterior angles acute ; elytra 

 elongate oval, with fine punctured striae toward suture. 

 L. 2| 1. Kather connnon. T. discus, Fab, 



