178 FAMILY II. CARABINE. 



Dubois, Crawford and Jennings counties; scarce. May 1- 

 May 17. 



LXV. DISCODERUS Lee.. 1 853. (Gr., ' ' disk + neck. ") 



Oblong black or piceous beetles, of small or medium size, having 

 the basal joint of hind tarsi elongate and the second, fifth and sev- 

 enth dorsal stri^ each with a number of small dorsal punctures. 

 The males have but one bristle-bearing puncture on each side of the 

 last ventral segment, while the females have two. The genus is 

 treated by : 



Horn. In Bull. Brook. Ent. Soc., VI. 1883, 52. 



One species occurs in Indiana. 



328 (1067). DISCODERUS PARALLELUS Hald., Proc. Phil. Acad. Nat. Sci., I. 

 1842, 301. 



Elongate-oblong. Black, subopaque, finely alutaceous ; antennae pale 

 reddish-brown; under surface and legs piceous. Thorax as broad as long, 

 slightly narrower at apex than base; disk strongly convex, side margin 

 narrowly depressed toward the base and with numerous minute punctures ; 

 hind angles rounded. Elytral strife rather deep, intervals convex. Length 

 7-7.5 mm. 



Putnam and Marion counties; rare. September 7-October 1. 



Subtribe B. (HARPALI.) 



To this group Horn ascribes eight genera, seven of which are 

 represented in Indiana. 



KEY TO INDIANA GENERA OF GROUP B. 



a. Antennae with only two basal joints glabrous. 



7>. Last joint of labial palpi shorter than the preceding, the latter with 



a number of setae in front. 



c. Front tarsi dilated in both sexes, the first joint only in the female; 

 body not pedunculate. LXVI. GYNANDROPUS. 



cc. Front tarsi dilated in the male only. 



'/. Elytra with at most one dorsal puncture; first joint of hind tar- 

 sus not longer than the two following. LXVII. HARPALUS. 

 <lrl. Elytra with three rows of dorsal punctures; first joint of hind 

 tarsus equal to the next three; length 5-10 mm. 



LXVIII. SELENOPHORUS. 

 lii>. Last joint of labial palpi equal to or even a little longer than the 



preceding, the latter with only two setae. 



c. Next to last joint of front and middle tarsi of male bilobed ; middle 

 tarsi dilated : length less than 8 mm. LXIX. STENOLOPHUS. 



ee. Next to last joint simply emarginate; middle tarsi of male not or 

 very feebly dilated. 



