yS FAMILY ir. (• AT^ABin.-V,. 



138 (577). I'TEKosTiciiL s PLKPLKATis l>e<'.. Joiini. I'liil. Acad. Nat. Sci.. 

 II. 1853, 242. 

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

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

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

 tuse. Elytra 1 striie deej), 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. 



*13!) (578). Pterostichus mutus Say, Trans. Amer. 

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



Elongate, rather slender, subdepressed. Black, sbin- 

 ing; antenna? and legs piceniis. Thorax more evident- 

 ly narrowed at base, sides less rounded, hind angles 

 distinct. Elytral strisse deep, tinely punctured, inter- 

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



Throughout the State; common. Hibernates. 



Fig. 60a. (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, tibife and tarsi 

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

 l)ase, basal impressions linear with a few punctures. Elytral striae deep, 

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

 punctures, the l)asal 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 de])ressed ; hind angles obtuse, basal impressions 

 sparsely punctured. Elytral 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 L3. 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 



