THE DARKLING BEETLES. 



1253 



2316 ( 7444). Biapstinus ihtebbufius Say, Journ. Phil. Acad. Nat. Scl, 

 III, 1824, 204; ibid II, 155. 

 Oblong, rather robust and convex. Black, finely alutaceous; elytra pic- 

 eous o^urely tinged with bronze. Thorax three-f^r ths wnl« than 1 , 

 sirt<4 straight to near apex, then converging to the apical angles, apex 

 bCdlfmartlnate hind angles acute; surface rather densely and coarsely 

 nunrturr he fovea, well marked. Elytra together about one-half 



rig^ tfan wtde; strbe feebly impressed, very finely and 

 the rows more or less interrupted; intervals sparsely and rathet coarselj 

 punctured. Length 4.5-5 mm. 



Throughout the state ; scarce. April 23-May 29. Several speci- 

 mens were taken from a dead hen and others front cement Side- 

 walks and beneath rubbish, usually in sandy localities. Broader 

 and more oblong than the next. 



2317 (7445) Blapstinus metallicus Fabr., Syst. Eleut, I, 1801, 143. 



Oblong-oval, convex. Bronzed, rather strongly shining. Thorax as in 

 *«ZZ, except that the disk is more fin «^ ly^n, 

 middle. Elytra! punctures coarse and widely interrupted in sets of one to 

 four or five, thus causing the surface to appear rugose, intervals flat, 

 sparsely and very finely punctate. Length 4-4.8 mm. 



Lake, Marion and Vigo counties; frequent. March 26-October 

 1. Occurs with mmstus and probably hibernates. Often attracted 

 by light. 



Tribe III ULOMINI. 

 Elongate or oval, usually somewhat depressed species having the 

 head immersed in thorax to eyes, which are transverse and emargi- 

 nate; front dilated to cover the base of mandibles; antennas 11- 

 jointed, the outer joints more or less thickened ; middle coxa, with- 

 out trochantin, hind coxa, slightly separated; tarsi pubescent be- 

 neath, the last joint much elongated. They live under bark in 

 fungi or in dried vegetable products. Representatives of but five 

 of the 16 genera have been taken in the State, though those of three 

 others perhaps occur. 



KEY TO INDIANA GENERA OF ULOMINI. 



a Antennae with the last two or three Joints suddenly broader (except in 

 Tribolium confusum) ; length less than 5 mm. 

 J). Club of antennae 3-jointed ; epipleura very narrow at Up. 



m>. Club of antenna- 2-.iointed ; epipleura distinct at tip. XI. Dicedus 

 an Antennal ioints gradually broader to tip. 



0. "of thorax not margined, the hind angles never covering the hu 



nieral angles of elytra. 

 d, Last joint of maxillary palpi oval; length less than 4 mm. 



