12 10 FAMILY LVL— CISTELIILE. 



close* punctate. Elytra] stria, feebly impressed, rather finelv punctured' 

 interval* almost flat, thickly punctulate. Length 11-13 mm PUnCtnl * a - 

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

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



Tribe IX. STRONG YLIINI. 

 Elongate rather slender, convex species, haying the head dilated 

 on the sides, the eyes and antennae as in the preceding tribe ■ Mud 

 cox* narrowly separated ■ inner wings present. The tribe is com- 

 prised of the single genus : 



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

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

 two ot which have been taken in the State. 



KEY TO INDIANA SPECIES OF STEONGYLIUM. 



». Thorax as long as wide. wtthoat a median groove. 2352 tenuicolle 

 ««■ Thorax broader than long, with a shallow median groove. ^ 



2353. TEBMINATUM. 



2352 ( 7579). Steongyliem tenuicolle Say. Journ. Phil. Acad Nat Sei 



V, 1S26, 241; ibid. II, 30C. ' ' ' 



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

 tenn* yellowish. Thorax subcyliudrical, narrower than elytra, a TlolZ 

 or slightly longer than wide; sides feebly curved, surface finelv and raft 

 closet poured. Elytra with deeply impressed punctured "stri* n te 

 vals convex, smooth. Length 14 mm. 



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

 Lake beneath bark of pine. 



2353 ( 7580). Steongylium teeminatum Say. Journ. Phil. Acad Nat Sei 



III. 1824, 267 : ibid. II. 157 



low E Th U o1^ e ', Pal 'f el ;, C ° UTe " Bla<mr <>™ ; last Joint of antenna, yel- 

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



12 mm. n ' 1,egUlarly P^red, Elytra as in tcnulcoUe. Length n 

 Putnam and Crawford counties; scarce. June 2S-July 1. 



Family LVI. ( ISTKI.I1 ). K. 



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 

 Tenehriomda.. they are readily separated by the comb-like or pec- 

 tinate tarsal claws. 1 



