THE LEAF BEETLES. 1233 



2l'So ( ). COPTOCYCLA PLICATA Bou., Moiiog. Ciissitl., Ill, lS-"iT. 493. 



Form of hicolor. Above black, shining, the margins of thorax and ely- 

 tra, except humeral angles of latter, pale yellow. Under surface jiale, the 

 center of abdomen darker. Elytra each with a round, deep fovea on mid- 

 lUe; puuctiues coarse and shallow. Tarsal claws pectinate at base. Length 

 <i-7 mm. 



ThrotiD-hout the State; scarce. ;May 12-.June 10. Swept from 

 roadside herbage. 



LXXX. Chelymorpha Chev. 1834. (Gr., "tortoise- shape.") 



This genus contains large convex species, with the margins of 

 thorax and elytra coTiiparatively narrow, the former bisinuate at 

 base and emarginate in front so as to leave the head partly visible. 

 The prostemum is grooved and prolonged behind the front coxae, 

 the apex fitting into a notch in the mesosternnm. One of the two 

 recognized species occurs in the State. 



22SG (7109). Chelymokpha ABors Herbst, CoL, Yin, 1801, 2TS. 



Oblong-oval, con-sex. Bright brick red ; thorax with 

 four blaclc dots arranged in a transverse row. and often 

 two others behind them ; elytra each with six black dots 

 and a counnon sutural one near the scutellum ; under sur- 

 face, legs and outer antennal joints black. Thorax and 

 elytra alutaceous, the former finely and sparsely, the lat- 

 ter more coarsely and rather densely punctate, the punc- 

 tures not in rows. Length 9.5-11.5 mm. (Fig. 554.) 



Throngliout the State : frequent. April 7-An- 

 gust 11. Occurs on milkweeil and on wild potato (Jff'ter Forte.) 

 (Ipomaa pandurata L.) . It is well fitting that this 

 large and difficult famih" should close ^oth this prettil.^- marked 

 species, which is among the largest and most striking of our native 

 Chrysomelids. 



Family- LIV. BKFCIilD.li. 



The Pea and Bbax AYeemls. 



A small family of .short, thick-bodied beetle>. all but one being 

 less than one-fourth of an inch in length. They are closely allied to 

 the Chrysomelidv. but differ from most sjiecies of that family in 

 having short serrate antennae and the tip of the abdomen exposed, 

 and from all in having the mentum distinctly pedunculate. They 

 also resemble ver\- clcsely the Anthri1)id;c. a family of the Rh;\-neho- 

 phora or snout beetles, but the labruu; and palpi arc of the ordinarv' 

 form and the head is but little prolonged in front. 



