1208 FAMILY LIII. — CHRYSOMELID^E. 



very small couieal terminal joiut; hind tibitp sinuate and deeply 

 grooved on outer edge near apex ; tar.si stout, first joint broadly tri- 

 angular, fourth slender. 



2233 (6919). Blephaeida ehois Forst., Nov. Spec, Ins., 1771, 21. 



Short, robust, oval, convex. Under surface and legs 

 reddish-brown; above dull yellow, the elytra paler, irregu- 

 larly variegated with dark reddish-brown ; antennte pieeous, 

 the four basal joints paler. Thorax more than twice as wide 

 as long, narrowed in front, sides regularly curved, front an- 

 gles prominent, hind ones obtuse; disk sparsely and finely 

 punctured and with a row of coarser punctures around the 

 ^'^^'^' margins. Elytra scarcely wider at base than thorax, each 



with nine feebly impressed rows of coarse, deep, distant punctures. Length 



5-6.5 mm. (Fig. 532.) 



Throughout the State; rather common on sumac. .May 19-0i'- 

 tober 1. The elytra vary greatly in the proportion of reddish- 

 brown markings, these sometimes covering the entire surface except 

 the sides and apex. Known as the "jumping sumac beetle." 



LXIV Cni/ETOCNEMA Stephens. ]8ol. (Gr., " spine -t-tibin?.") 



Small elongate or oval, black or brown, usually faintly bronze! 

 species having the head immersed in thorax to eyes, the front not 

 carinate ; antennas slender, at least half the length of body, second 

 .ioint elongate-oval, 3 to 6 slender and longer, 7 to 11 gradually 

 broader and flattened, the 11th nearly as long as the two preceding, 

 acute at tip; thorax ahva\s broader than long, narrowed in front, 

 base regularly curved, without an impression in front; elytra at 

 most but little wider than thorax, their punctures in rows; hind 

 tibiae sinuate near apex, with a triangular tooth above the curve, 

 grooved at apex on the outer side and terminating in a rather long, 

 stout spur; tarsal claws simple. The following species have been 

 taken or probably occur in the State: 



KEY TO INDIANA SPIX'IKS OF CIl.lCTOCNEMA. 



./. Sides of thorax regularly cuvved from base to apex, the front angles 

 not obliquely truncated. 

 6. Head punctate, sometimes indistinctly so. 



c. Pvciws of clytral piiuclnrcs confused or irregular at liasc. 

 d. Punctures of elytral stria- 1 to s much rdufused to beyond the 



middle. CRIBATA. 



d<l. Punctures of clylral slriie 1 to :>, irregular near the base only; 

 punctures of thorax coai-sc. 



