1230 



FAMILY LIII. — CIIRYSc )JIELir).E. 



short, the body more convex than in the next genus. Five species 

 probably occur in the State. 



KEY TO INDIANA SPECIES OF CASSIDA. 



a. Elytra with black spots or stripes. 



6. Elytra each with three small, obscure black spots near the middle, 



two of these sometimes absent. 



c. Dull red ; larger, 6-7.5 mm. 2277. nigripes. 



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



!//;. Elytra dull yellow, each with sutural line and two stripes black; 



thorax reddish-yellow. 2279. bivittata. 



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



d. Under surface black ; elytral punctures confused. thoracic^. 



diL Under surface pale; elytra each with nine rows of very coarse punc- 

 tures. 2280. PALLIDUL\. 



2277 (70!I7). Gassida nigeipes Oliv., Encyc. Meth., V, 1790, 348. 

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

 scure black dots near the middle ; under surface and legs 

 black, shining; base of antennte, tibite in part and tarsi 

 reddish. Thorax twice wider than long, broadly rounded 

 in front, smooth. Elytra with edges thickened and re- 

 flexed, base deeply emarginate, the humeral angles promi- 

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

 pressed punctures. Length G-7.5 mm. (Fig. 549.) 



Throughout the State; scarce. April 26-Sep- 

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



2278 (7097a). Cassida ateipes Lee, Col. of Kan., 1859, 2S. 



Smaller and less broadly oval than nlgripes. Color (after death) dull 

 yellow, the elytra each with a small, round black spot near middle of disk 

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

 wider than in nigripcs, the hind angles much less rounded than there. 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 numbers by Wolcott near Pine and IMillers, Lake 

 County. IMay 21-I\lay 30. Described from Long's Peak. Listed as 

 a variety of nigripcs, but in my opinion distinct. 

 *2270 (7098). Cassida bivittata Say, 

 295; ibid. II, .341. 

 Oval, convex. Thorax yellowish, with 

 a large triangulnr brownish-red space at 

 base; elj^ra dull yellow, with the suture 

 ami twd stripes on each, connected at apex, 

 black or dark brown; under surfai(> and 

 legs piceous. Thorax coarsely, sparsely and 

 shallewly punctate. Elytra with regular 

 rows of rather coarse, deep punctures 



Fig. 549. 



Jouru. Phil. Acad. Nat. Sei., Y, 182(3, 



lliose of tlie sulmjarginal row lariiei- and black. I.eu' 



l"ig. 5.50. 2, Larva; 3, pupi; 4, beetle. 

 (After Riloy.) 



gth4.5 r. mm. (Fig 



.>->{).) 



