42 DESCBIPTION OF INSECTS 



Feet black ; tibia and tarsi deep piceous. 

 Belongs to the genus Pterostichus of Bonelli. 



'0'= 



12. F. *m(Esta apterous, black, glabrous ; thorax as broad as 

 the elytra, much contracted behind ; elytra very obtusely 

 rounded behind, striae impunctured. 



Length seven-tenths of an inch. 



Body black, glabrous, impunctured, rounded behind. 



Antennae brownish or ferruginous towards the tips; palpi 

 piceous. 



Thorax before the middle as broad as the base of the elytra, 

 much contracted behind, posterior angles obtusely rounded, 

 dorsal line very distinct, basal ones excavated, slightly 

 punctured and placed at the lateral angles, base not wider 

 than the petiole, basal edge rectilinear. 



Elytra slightly tinged with purplish, very obtusely rounded 

 behind, striae profoundly indented, impunctured, inter- 

 stitial lines very convex, third with about four distant 

 punctures. 



Postpectus, peduncle punctured each side. 



Feet, thighs robust ; ta7^si piceous. 



Is distinguished from stygicus by the very narrow tho- 

 racic base, and very obtuse termination of the body. 



13. F. *sigillata apterous, black, glabrous; thorax slightly 

 contracted behind, anterior transverse line acute and 

 deeply impressed ; elytral strife punctured. 



Length more than seven-tenths of an inch. 



Body black, glaltrous, impunctured. 



Jintennae brownish towards the tip ; lahrum dark piceous ; 

 mandibles ol)liquely striated above conspicuously; palpi 

 piceous. 



Thorix broadest before the middle, gradually a little con- 

 tracted behind, dorsal line acute, impressed, continued, 

 anterior transverse line acute, deeply impressed resem- 



