98 



FAMILY II. CAEABIDJE 



138 (577). Ptekosttchus purpuratus Lee. Journ. Phil. Acad. Nat. Sci.. 

 II, 1853. 242. 



Elongate, rather robust. Head and thorax black, shining; elytra and 

 femora with a distinct purplish tinge; antennae and tarsi piceous. Thorax 

 subquadrate. but little narrowed behind, sides rounded, hind angles ob- 

 tuse. Elytral stria; deep, not punctured ; intervals convex. Length 13-14 mm. 



Knox and Lawrence counties; rare. August 31-September 26. 

 This and the next species have the hind tarsi with three joints 

 grooved on the outer side ; the dorsal punctures three and the front 

 transverse line of thorax short and interrupted. 



*139 ( 578). Pterostichus mutus Say, Trans. Amer. 



Phil. Sac., II. 1823. 44; ibid. II. 470. 

 ElongateT rather slender, subdepressed. Black, shin- 

 ing ; antenna and legs piceous. Thorax more evident- 

 ly narrowed at base, sides less rounded, hind angles 

 distinct. Elytral striae deep, finely punctured, inter- 

 vals subconvex. Length 10-12.5 mm. (Fig. 60a.) 



Throughout the State; common. Hibernates. 

 Fig. eol. (After Leng). April 8-December 18. _ • 



140 (580). Pterostichus pennsylvanicus Lee. Proc. Phil. Acad. Nat. 



Sci.. 1873, 314. 



Elongate, rather robust. Black, very shining; palpi, tibise and tarsi 

 dark reddish-brown. Side margins of thorax a little wider toward the 

 base basal impressions linear with a few punctures. Elytral striae deep, 

 indistinctly punctured; intervals slightly convex, the third with five large 

 punctures,"' the basal one near the third stria, the others on or near the 

 second. Length 11-12.5 mm. 



A northern species taken in Lake County, near Pine; rare. 

 June 26. 



141 (583). Pterostichus luczotii Dej.. Spec, III. 1827, 321. 

 Elongate-oval, rather slender, subdepressed. Head and thorax black; 



antennae, legs and elytra dark reddish-brown. Thorax narrowed behind: 

 sides oblique, narrowly depressed; hind angles obtuse, basal impressions 

 sparsely punctured. Elytra! striae finely punctured, the second and third 

 with five or six large, indented dorsal punctures placed somewhat alter- 

 nately : intervals nearly flat. Length 11-12.5 mm. 



Steuben County ; rare. August 1 3. Four specimens were taken 

 from beneath leaves in a low wooded tract on the eastern border 

 of Clear Lake. A species of northern range. 



Group D. 



Three small species comprise this group. In addition to the 

 characters given in key to Groups, they have the side pieces of 



