THE LEAF BEETLES. 



1205 



2230 (6983). Tbic'haltica scabricula Crotch, Proc. Phil. Acad. Nat. Sci., 

 1873, 71. 



Oblong, nearly parallel, moderately convex. Reddish-yellow ; elytra 

 bine; antennas piceous. Thorax more than one-half wider than long, not 

 narrowed in front, hind angles distinct ; disk convex, shining, very sparsely 

 and coarsely punctured. Elytra wider at base than thorax; disk slightly 

 flattened at middle, with a short scutellar and ten long rows of coarse, deep, 

 closely placed punctures; intervals narrower than the stria? and bearing 

 sparse, short, semierect hairs. Length 2.5-3.5 mm. 



Southern third of State; frequent. May 6 -June 24. The tho- 

 rax and under surface are sometimes of a Vandyke brown, and the 

 hairs of elytra are so small as to be visible only from the side with 

 a strong lens. Occurs from Ohio to Texas. 



Sphceroderma opima Lee, tibia? and tarsi reddish-brown, length 

 2.5 mm., occurs in Illinois, North Carolina and Texas. 



Subtribe B. (Ch^etocnemini.) 



The members of this subtribe are separated from the preceding 

 only by the closed cavities of the front coxa?. They are, for the 

 most part, very small oval or oblong species, with the upper surface 

 usually uniform in color. Although the two subtribes are each 

 probably represented in the State by about the same number of 

 genera, the present one has much the fewer species. 



Fig. 531. a, Antenna and claws of Blepharida; b, hind tibia and tarsus of Chcetocnema; c, same of 

 Dibolia; d, same of Psylliodes. (After Horn.) 



KEY TO INDIANA GENERA OF HALTICINI, SUBTRIBE B. 



a. Last joint of hind tarsi globosely swollen ; elytra with punctures in 

 rows; hind tibia? with one spur. 

 5. Thorax not impressed ; body hairy ; hind tibia? with but one carina. 



LXI. Hypolampsis. 



1)1). Thorax with a transverse impression near base; body glabrous; hind 

 tibia? with two carina? on the outer side. LXII. Pachyonychus. 

 aa. Last joint of hind tarsi not inflated, usually slender, sometimes thick- 

 ened when viewed from the side, 

 c. Antenna? 11- or 12-jointed ; hind tarsi inserted at the end of the tibia?. 



