INHABITING NORTH AMERICA. 47 



Carabus adoxus. Melsh. Calal. 



Body black, glabrous, i in punctured. 



AfitenjKv robust, the joints attenuated towards tbcir basos), 

 and with the palpi dark rufous ; labvuin truncate, dark 

 rufous. 



Thorax large, iinpunctured, gradually contracted bebind, 

 edge excurved at the bind angles, dorsal line not attaining 

 the base, basal lines strongly impressed, cutting the i>ase 

 near the angles ; pectus im|)unctured ; poMpcctns punctured. 



Elytra, striaj impunctured, interstitial lines convex. 



Feet piceous ; abdomen piceous. 



Corresponds with M. Latreille's definition of the genus 

 Pterochistus of Bonelli. 



21. F. *gregaria dark reddish-brown; limbs and margin of 

 the thorax paler, thorax at base equal to the base of the 

 elytra. 



Carabus ^regarius. Melsh, Catal. 



LengtJi two-fifths of an inch. 



Body dark ciiesnut, blackish each side beneath. 



Head dark ciiesnut : eyes and tnaiidibirs at tip black ; antenmt 

 and palpi reddish-brown, the former iialf as long as tlic 

 body. 



Thorax rather longer than liroad, impunctured, lateral mar- 

 gin distinct and witli the posterior margin paler, tlic latter 

 rather broader than at tip and equal to tlie base of the 

 elytra, dorsal and posterior lines indistinct, angles rounded. 



Elytra with impunctured strife, margin paler and distantly 

 punctured, without emargina near the tip, but regularly 

 rontulcd i?i that part. 



Epipleurn distinctly canalicidate to near the tip ; /ct/ colour 

 of the antennse, long : renter blackish. 



Belongs to the kciuis Calathus of Bonelli and Latreille. 



