1270 FAMILY LVJ. CISTELID.E. 



closely punctate. Elytral striie feebly impressed, rather finely punctured; 

 intervals almost flat, thickly punctulate. Length 11-13 mm. 



Throughout the State; frequent. May IS-September 18. Oc- 

 curs singly beneath logs and bark, especially that of oak. 



Tribe IX. STKOXGYLI1NI. 



Elongate, rather slender, convex species, having the head dilated 

 on the sides, the eyes and antenna/ as in the preceding tribe; hind 

 coxa 1 narrowly separated; inner wings present. The tribe is com- 

 prised of the single genus : 



XXVII. STRONGYLIUM Kirby. 1837. (Gr., "round.") 



This genus, as characterized above, is represented by six species, 

 two of which have been taken in the State. 



KEY TO INDIANA SPECIES OF STRONGYLIUM. 



(/. Thorax as long as wide, without a median groove. 2.">52. TKXUK ou K. 

 <KI. Thorax broader than long, with a shallow median groove. 



2353. TEU.MINATUM. 



2.'!52 (757!>)- STRONGYLIUM TENUICOLLE Say, Journ. Phil. Acad. Nat. Sci.. 

 V, 1820, 241; ibid. II. 300. 



Elongate, convex. Brownish-black or piceous, shining; last joint of an- 

 teuuse yellowish. Thorax subcylindrical, narrower than elytra, as long as 

 or slightly longer than wide; sides feebly curved, surface finely and rather 

 closely punctured. Elytra with deeply impressed punctured striie; inter- 

 vals convex, smooth. Length 14 mm. 



Lake County; scarce. July 16-July 21. Taken at Hessville and 

 Lake beneath bark of pine. 



2353 (7580). STRONGYLIUM TEBMINATUM Say. Journ. Phil. Acad. Nat. Sci.. 

 Ill, 1824, 207; ibid. II, 157. 



Elongate, parallel, convex. Blackish-brown ; last joint of autennre yel- 

 low. Thorax broader than long, front angles rounded; surface finely, rather 

 closely and irregularly punctured. Elytra as in tniuic<>U<\ Length 11- 

 12 mm. 



Putnam and Crawford counties; scarce. June 28-July 1. 



Family LVI. CISTELIDJE. 

 THE COMB-CLAWED BARK BEETLES. 



This family embodies in North America about 100 known species 

 of brownish beetles without spots, which live, for the most part, be- 

 neath bark or on flowers and leaves. In form they are usually elon- 

 gate-oval, quite convex, and clothed above with minute hairs which 

 give a. silken gloss to the surface. Although closely allied to the 

 Tenebrionidr, they are readily separated by the comb-like or per- 

 linale tarsal claws. 



