CASSIDA. 301 



TI. Side margin of thorax and elytra directed down- 

 ward. 



1, Posterior angles of thorax pointed. 



Elliptic. Upper-side green ; each elytron with a broad 

 greenish-golden streak ; under-side black, margins of abdo- 

 men broadly greenish, legs green. Thorax finely punctured 

 on disc, more strongly toward margins ; elytra with regular 

 rows of punctures. L. 2h — 3 1. Moderately common. 



C. oblong a, 111. 



2, Posterior angles of thorax rounded. 



Elliptic. Upper-side pale greenish-yellow ; elytra with 

 a golden streak on each ; under-side black, margins of ab- 

 domen (narrowly) and legs yellow, base of femora black. 

 Elytra with regular rows of punctures. L. 2 — 2| 1. Mode- 

 rately common. C. nohilis, Lin, 



&. Elytra with regular raised interstices. 

 J. Upper-side rust-brown. 



1, Upper-side spotted irregularly with black ; 

 elytra with regular rows of coarse punctures. 



Oval. Under-side black ; head, margins of abdomen 

 broadly and legs (except base of femora) rust-brown. Pos- 

 terior angles of thorax rounded. L. 2^ — 2| 1. Not com- 

 mon. C. nebulosa, Lin. 



2. Upper-side not spotted with black ; elytra with 

 irregular rows of punctures. 



Oval. Under-side black ; legs red. Posterior angles of 

 thorax rounded ; alternate interstices on elytra more raised. 

 L. 2 — 2 1 1. Ptare. C. ferruginea, Fab. 



II. L^pper-side pale greenish-yellow. 



Broad elliptic. Under-side black ; head and legs yellow. 

 Posterior angles of thorax rounded; elytra with regular 

 rows of punctures. L. 2 — 2^ 1. Common. 



C. ohsoleta, 111. 

 -B. Elytra confusedly punctured throughout. 



a. Body oval ; length 3| — 4i lines. 



Upper-side green ; under-side black, margins of abdomen 

 and legs reddish-yellow. Posterior angles of thorax rounded ; 

 elytra rather closely punctured, interstices very finely 



