THE GROUND BEETLES. 



103 



our largest species, and are elongate-oblong and convex in form, 

 black or pieeous in line, usually strongly shining, rarely very feebly 

 bronzed. The apical spur of front tibia? is always simple and the 

 elytral striae are punctured. It includes the Indiana representa- 

 tives of the subgenera Cyrtonotus, Leioenemis .and Bradytus of 

 Hayward 's paper. 



KEY TO SPECIES OE GROUP A. 



a. Prosternuin not margined at tip; middle tibiae of male with two teeth 

 on the inner side: punctures on base of thorax limited to the im- 

 pressions. 151. PENNSYLVANIA. 

 aa. Prosteruum margined at tip; middle tibiae of males not toothed. 



6. Hind tibiae of males not distinctly pubescent on the inner side; 

 thorax punctured from side to side at base. 152. ayida. 



&6. Hind tibiae of males distinctly, usually densely pubescent on the 

 inner side; basal impressions of thorax broad, bifoveate, with few 

 or no punctures between them, 

 c. Scutellar stria very short or obsolete ; side pieces of metasternum 

 punctured. 153. exarata. 



cc. Scutellar stria long ; side pieces of metasternum smooth. 



d. Prosteruum of male with a shallow sparsely punctured oval 

 space at middle, simple in the female : larger.. 8.7-10.5 mm. 



154. LATIOR. 



dd. Prosteruum of male not punctured, but with a lengthwise groove, 

 more feebly grooved in female ; smaller. 7-8 mm. schwarzi. 



151 (645). Amaea PENNSYLVANIA Hayward. Trans. Amer. Ent. Soc. 



XXXIV. 190S. 34. 



Elongate-oblong, moderately convex. Black or pieeous. shining; an- 

 tennae and legs rufous. Thorax less than one-halt wider than long, slightly 

 wider at base than apex, widest a little in front of middle: hind angles 

 rectangular, carinate ; basal impressions broad, deep, indistinctly bifoveate. 

 coarsely punctured. Elytral striae punctured, more finely toward the apex. 

 Length 10-11. 5 mm. 



Southern half of State: frequent. Hibernates. February 26- 

 October 9. Listed as fulvipes Putz. but Hayward shows this name 

 To have been preoccupied. 



152 (623). Amaea avida Say. Journ. Phil. Acad. Nat. Sci.. III. 1823, 14S : 



ibid. II. 95. 511. 



Oblong, convex. Black or pieeous. shining: antenme and legs rufous. 

 Thorax nearly twice as wide as long, widest in front of middle, as wide 

 at base as apex: hind angles rectangular, not carinate. basal impressions 

 ill-defined: disk smooth at middle, sparsely punctate near apex, more 

 densely and coarsely across the base. Elytra scarcely wider than thorax, 

 the striae deep, distinctly punctured, intervals convex. Length 8-9 5 mm 

 ( Fig. 63. ) 



Vigo arid Floyd counties: scarce. April 26-June 23. 



