1268 FAMILY LV. — TENEBKIONID.E. 



B. dcprefisus Rand., color of corlicola, elytra finely costate, in- 

 tervals with a single row of coarse punctures, length 5-7.5 mm., is 

 said to occur in the Eastern and ^liddle States and (*anada. 



Tribe VII. IIELOPINI. 



In this and the following tribes tlie front of head is separated 

 from the lahrum hy a short transverse elypeus of leather-like tex- 

 ture. The present tribe is composed of medium-sized oblong or oval 

 species having the head inmiersed in thorax almost to eyes, the 

 latter transverse, emai-ginate and coarsely granulated; antenna? 

 gradually thickened from l»ase to apex; front coxjc rounded, middle 

 ones with distinct trochantin ; hind coxtp narrowly separated, the 

 intercoxal process triangrdai-; farsi pubescent beneath, front and 

 middle ones of males usually dilated. The tribe is represented by 

 the single genus : 



XXV. HELOPsFab. 1775. (Gr., "a nail + face.") 



Dark metallic species, usually with a strong lustre. About 35 

 are known, chiefly from the West and Southwest. But three have 

 been taken in the State, though two others perhaps occur. 



KEY TO INDIANA SPECIES OF IIELOPS. 



«. Inner wings present. 



6. Side margins of tliorax not niidulated. 



c. Elytra finely striate; intervals finely and sparsely panctured ; ape.\ 



of last ventral segment with a depression. 2348. micans. 



cc. Elytral strife deep; intervals convex, almost without punctures; 



apex of last ventral without depression. venustus. 



?>?>. Side margins of thorax undulate; form narrower and less convex; 



elytral stria? deep. 2349. americanus. 



ua. Inner wings absent. 



d. Side pieces of prosternum with numerous shallow grooves. 



2350. .-ereus. 

 dd. Side pieces of prosternum coarsely punctured. cisteloides. 



2348 (7546). Heeops micans Fab., Syst. Eleut. I, 1801, 157. 



Elongate-oval, convex. Blackish-bronzed, shining; elytra with indis- 

 tinct bluish and greenish-metallic stripes. Antennne slender, half the length 

 of body, the three outer joints shorter. Thorax one-half broader than long, 

 emarginate in front, margins feebly sinuate, angles rectangular; surface 

 coarsely, rather closely and irregularly punctate. Elytral stria^ fine, indis- 

 tinctly punctate; intervals flat, finely and sparsely iiunctate. Apex of last 

 ventral with a broad hairy depression in male; a longitudinal and narrow 

 one in female. Length 10-17 mm. 



