264 PHYTOPHAGA — CHRYSOMELIDAE. 



2, Length '2\ — 3 lines. 



Oblong elliptic, flatly arched. Golden-green ; suture of 

 elytra and an abbreviated longitudinal band on each darker. 

 Thorax parallel-sided, moderately strongly punctured 

 (coarsely in the depressed posterior angles only) ; elytra 

 evenly coarsely punctured, with more finely punctured and 

 scratched interstices. Common. Cfastuosa^JAii. 



II, Side margin of thorax thickened. 



1. Elytra striped with purple, green, gold and 

 copper. 



Oblong elliptic. Upper-side metallic-green or red ; base 

 of antennae brownish ; thorax with three darker longitu- 

 dinal lines ; elytra as above. Thorax punctured, side 

 border separated by a broad, interrupted impression ; elytra 

 finely punctured. L. 3 — 4 1. Scarce. C. cerealis, Lin. 



2, Elytra unicolorous red-brown. 



Oblong-elliptic. Golden-green ; base of antennae red- 

 yellow ; elytra red-brown, metallic. Thorax punctured, 

 side margin dilated in a curve in front, separated behind 

 by a deep impression ; elytra coarsely punctured, interstices 

 with isolated, fine puftctures. L. 2f — 3v 1. Common. 



C. polita, Lin. 



H. Elytra with regular rows of punctures. 



a. Elytra roughened, with simple rows of punctures, 

 interstices with fine, scattered punctures. 



Elliptic, much narrowed at ends. Olive-green, shiny; 

 base of antennae reddish. Lateral impressions of thorax 

 deep behind ; interstices on elytra equal in breadth, finely 

 and scantily punctured. L. 3 — 3| 1. Eather common. 



C. I ami 71 a, Fab. 



b. Each elytron with five double rows of coarse punc- 

 tures, the first becoming simple behind middle and 

 ending in a furrow, also with scattered fine punctures. 



I. Body narrow elliptic. 



Brassy, blue or blackish-bronze ; base of antennae 

 brownish. Punctuation of thorax effaced in front ; double 

 rows of punctures on elytra coarse. L. 2| — 3 1. Common. 



C. hyperici, Forst. 



II, Body broad elliptic. 



