1176 



FAMILY LIII. CHRYSOMELJD/E. 



it from vittata. According to Knab there are, in the U. S. Museum 

 collection, two males of lengi, placed as males of vittata, while there 

 is no true vittata male present. Named in honor of Chas. W. Leng, 

 of New York City, who has shown me many favors during my work 

 on this paper. 



XLIX. Luperodes Motsch. 1858. (Gr., ^troublesome.") 



This genus comprises the majority of the species formerly listed 

 under Lu per us. They are oblong, small-sized beetles, having the 

 head transversely grooved between the eyes and carinate between 

 the antennas; the latter slender, longer than half the body, joints 

 2 and 3 small, together not longer than fourth ; thorax variable in 

 form, transverse to quadrate, the disk never distinctly impressed; 

 elytra with epipleurae extending nearly to apex; front coxal cavities 

 open behind, the coxa?, often separated by a narrow prolongation 

 of the prosternum; tibia- with a terminal spur, that of the hind 

 pair the longer ; claws appendiculate and divaricate. But one spe- 

 cies has been recognized from the State, though two others may 

 occur. 



KEY. TO INDIANA SPECIES OF LUPERODES. 



a. Thorax yellow, twice as wide as long; form oval; elytra black or pic- 

 eous, sparsely punctate ; legs yellow. thoracicus. 

 aa. Thorax blue or black ; antennas yellow. 



b. Elytra punctate and alutaceous ; hind angles of thorax dentiform ; all 

 the femora more or less piceous. meraca. 

 bb. Elytra very obsoletely punctate, scarcely alutaceous; hind angles of 

 thorax not dentiform ; middle and hind femora often partly piceous. 



2178. CYANELLUS. 



L. thoracicus Melsh., length 4.5-5 mm., and L. meraca Say, 

 length 5 mm., both range from Pennsylvania to Kansas; the latter 

 has been recorded from Illinois. 



2178 (6865). Luperodes cyanellus Lee, Proc. Phil. Acad. Nat. Sci., 1865, 

 209. 



Elongate-oblong. Above dark blue, strongly shining, beneath piceous; 

 antenna? and legs usually entirely yellow, the middle and hind thighs some- 

 times piceous near base. Thorax a little wider than long, sides slightly 

 curved, bird angles distinct, not prominent; disk convex, smooth, sparsely 

 punctured at sides and base. Elytra sparsely and finely punctate, feebly 

 alutaceous. Length 3.5-4.5 mm. 



Marion, Jackson and Crawford counties ; scarce. May 17-June 

 24. Occurs on the flowers of wild rose. 



