1280 



FA.M ILY IJII. — CIIRYSOMELID.K 



sliort, the Ixxly more eonvex than in the next genus. Five species 

 })r()l)al)]y dccui' in the State. 



KEY TO INDIANA SPECIES OF CASSIDA. 



«. Elytra with black spots or stripes. 



b. Elytra each with three small, obscure lilack spots near the middle, 



two of these sometimes absent. 



('. Dull red; larger, G-7.5 mm. 2277. nigrtpes. 



cc. Dull yellow; smaller, not over 5.5 mm. 227S. atkipes. 



bh. Elytra dnll yellow, each with sutural line iind two stri[)es black; 



thorax reddish-yellow. 2279. BivrrTATA. 



(Id. Elytra uniform green or greenish-yellow without spots or stripes. 



(1. Under surface black ; elytral punctures confused. thoracica. 



(Id. I'nder surface pale; elytra each with nine rows of very coarse punc- 

 tures. 2280. PALunii^. 



2277 (70'.»7). C'assida nigripks Oliv., Encyc. Meth., V, 1790, 348. 

 Broadly ovate. Dull red; elytra each with three ob- 

 scure Id.nck dots near the middle; under surface and legs 

 black, shining; base of antennas tibi;c in part and tarsi 

 reddish. Thorax twice wider than long, broadly rounded 

 in front, smootli. P]lytra with edges thickened and re- 

 Hexed, base deeply emarginate, the humeral angles promi- 

 nent ; each with nearly regular rows of fine, scarcely im- 

 ])ressed punctures. Length G-7.5 mm. (Fig. 549.) 



Throughout the State; scarce. April 26-Sep- 

 tember 28. Occurs on wild morning-gloi-y and sweet potato vines. 



2278 (7007a). Cassida atripes Lee, Col. of Kan., 1859, 28. 



Smaller and less broadly oval than nigripcs. Color (after death) dnll 

 yellow, the elytra each witii ;t small, round black spot near middle of disk 

 and usually two oblong ones on sides. Thorax shorter and proportionally 

 wider than in ulijripvs, the hind angles much less rounded than thei'e. Ely- 

 tra as in nigripcs except that the sides on basal half are less abruptly de- 

 clivous or sloping; intervals finely alutaceous. Length 5-5.5 mm. 



Taken in small nutiibers by Wolcott near Pine and Millers, Lake 

 County. IMay 21-]May 30. Descril)ed froni Long's Peak. Listed as 

 a variety of ))i</rip<s, 'hut in my opinion distinct. 



*2279 (70;)S). Cassida iuvittata Say, .Tourn. riiil. Acad. Nat. Sci., V, 1S2(;, 

 295; ibid. 11. lUl. 

 Oval, convex. Thorax yellowisli, witli 

 a large triangular brownish-red space at 

 base; eljirra dull yellow, with the suture 

 .•nid fwn sli'ipes on each, connected at aiiex, 

 black oi' dark brown; inider surface .and 

 legs piceons. Thorax coarsely, sparsely and 

 siinilowly itunctate. Elytra witii regul.nr 

 rows <if ralliei" coarse, deep punctures, 

 those of Ihe suliiiini'uin.-il riiw iiiruer and lil.-ick. 



Fig. 549. 





Fig. 550. 2, Larva; 3, pupa; 4, bct'tlo. 

 (After Riley.) 



Length 4.5-(; nun. ( Fig. ."5( I. ) 



