CHltYSOMELA. 2()3 



Broad elliptic. Deep black-blue; sides of elytra red. 

 Thorax parallel-sided behind middle, shortly rounded in 

 front, side border separated by a wrinkled impression 

 formed of coarse punctures ; elytra coarsely and irregularly 

 closely punctured. L. 3| — 4| 1. Not very common. 



C. sangiLinolenta, Lin. 



2, Punctuation of elytra not deep and not confluent. 



Ovate. Deep bluish-black ; sides of elytra broadly 

 blood-red ; antennae black, with basal joints and the legs 

 bluish. Disc of thorax finely ^^unctured, its sides and the 

 elytra coarsely and closely punctured, the punctures 

 not confluent. L. 3i — 4 1. Not uncommon. 



C. distiiiguenda, Steph. 



ZI, Elytra finely punctured, with irregular double 

 rows of larger punctures. 



Narrow elliptic. Brownish-bronze ; base of antennae 

 and a narrow border to elytra yellow-red. Thorax narrowed 

 in front, side border separate before posterior angles ; elytra 

 with alternate interstices slightly raised. L. 2f — 3| 1. 

 Not common. C. marginata, Lin. 



c. Upper-side green, with or without elytra more or less 

 red or purplish. '* 



X. Side margin of thorax not thickened. 



1» Length 3| — 5 lines. 



A A, Thorax narrowed in front ; upper-side 

 unicolorous. 



Oblong-elliptic. Golden-green. Punctuation of thorax 

 close and coarse, of elytra scattered, with shiny, scratched 

 interstices. Male with an oblong depression at base of 

 last abdominal segment. L. oh — 3f 1. Common. 



G. menthrasti, Sufi'r. 



JB 1^. Thorax not narrowed in front ; thorax, 

 suture of elytra and a badly defined longitu- 

 dinal band on each of latter darker than rest 

 of upper-side. 



Oblong-elliptic, convex. Golden-green ; parts men- 

 tioned above darker. Punctuation of thorax moderately 

 strong on disc, coarse at sides, of elytra coarsely wrinkled, 

 with scratched interstices. L. 3| — 5 1. Eather common. 



C. graminis, Lin. 



