188 



FAMILY II. CARABIDiE. 



logs and rubbish in dry or sandy places, and some of them are very 

 common on the wing during the first warm days of March or April. 

 Six species and one variety have been taken in Indiana. 



KEY TO INDIANA SPECIES OF STENOLOPHUS. 



a. Thorax but little narrower than elytra ; body stout ; front and middle 

 tarsi of male broadly dilated. 

 Z). Sides of thorax broadly flattened, scarcely reflexed ; black, feebly 

 shining; length 7-7.5 mm. 351. caebonabius. 



&6. Sides of thorax narrowly margined, the margins not reflexed. 



c. Basal impressions of thorax broad and shallow; black, shining, 

 elytra piceous or brownish-yellow, slightly iridescent ; length 7- 

 7.5 mm. 352. fuligtnosis. 



cc. Basal impressions of thorax small, rounded, not or very sparingly 

 punctured. 



d. Thorax with disk distinctly black or piceous, the margin reddish- 

 brown ; length 5 or more mm. 

 e. Pale margin of thorax narrow ; elytra wholly black. 



353. PLEBEJUS. 



ee. Pale margin of thorax broader ; elytra dull reddish-brown, the • 

 tips darker. 353a, var. fuscatus 



dd. Thorax either uniform reddish-brown or piceous, without distinct 

 blackish discal spot ; length not over 4.5 mm. 



354. CONJUNCTUS. 



aa. Thorax distinctly narrower than elytra; body more slender; front tarsi 

 of male moderately dilated, fourth joint deeply bilobed. 

 /. Thorax and elytra black or piceous, with narrow paler margin ; su- 

 tural stria long, joining the first dorsal. 355. ocheopezus. 



//. Thorax brownish-yellow ; elytra iridescent black with brownish-yel- 

 low side margins; sutural stria short, not joining first dorsal. 



DISSIMILIS. 



351 (1135). Stenolophus caebonabius Dej., Sp. Gen., IV, 1828, 398. 

 Elongate-oblong. Black, feebly shining; first joint of antenna?, tibiae 



and tarsi brownish. Thorax as broad at middle as elytra ; sides rounded 

 into base ; margins flattened, especially near hind angles ; basal impressions 

 broad, shallow, sparsely and finely punctate. Elytra alutaceous, the su- 

 tural stria long, the others deep. LeDgth 7-7.5 mm. 



Putnam County; rare. October 17. Sifted from debris near a 

 hillside spring. 



352 (1138). Stenolophus fuliginoses Dej., Spec. IV, 1828, 423. 

 Oblong-oval. Color given in key ; tarsi, base of antennae and narrow 



margin of thorax brownish-yellow ; femora and greater portion of antennae 

 darker. Thorax subquadrate ; as long as broad, hind angles broadly rounded. 

 Elytral striae rather deep; intervals moderately convex. Length 7-7.5 mm. 



Throughout the State ; frequent. Hibernates. January 1-Oc- 

 tober 21. 



