266 PHYTOPHAOA — CHRYSOMELIDAE. 



Oblong-elliptic. Black ; anterior angles of thorax and 

 the elytra sometimes red, latter spotted with black ; base 

 of antennae, tibiae and apex of abdomen red. Thorax nar- 

 rowed in front, anterior angles acute ; elytra with rows of 

 punctures and rough interstices. L. 2|— 3 1. Rare. 



G. af finis, Schoenh. 

 JS, Body convex, oval ; interstices on elytra finely and 



closely punctured ; anterior tibiae inconspicuously spined. 



Upper-side and legs reddish-yellow ; a bilobed frontal 

 spot, a band on each elytron and the under-side black ; 

 whole insect sometimes yellow. Elytra with coarse rows 

 of punctures. L. If — 2 1. Common. G. litura, Fab. 



C. Body somewhat cylindrical ; interstices on elytra finely 

 and scantily punctured ; anterior tibiae without spine. 



Eeddish-yellow, more or less marked with black, or 

 even entirely black. Elytra with coarse rows of punctures, 

 sutural apical angle distinctly produced ; last abdominal 

 segment simple; hinder pairs of tibiae equally strongly 

 spined. L. 2| — 3 1. I^Tot uncommon. G. pallida, Liu. 



Gastvophysa. 

 A, Thorax red. 



Blue-green ; thorax, base of antennae, femora, tibiae and 

 apex of abdomen red. L. If — 2| 1. Common. 



G. polygoni, Lin. 

 -B. Thorax green. 



Golden-green ; club of antennae and mouth parts blackish. 

 Posterior angles of thorax bluntly rounded. L. 2 — 2-| 1. 

 Common. G. raphani, Fab. 



JPlagiodera, 



Almost circular, very flatly arcTied. Black, upper-side 

 blue, green, violet or coppery ; base of antennae red-brown. 

 Elytra confusedly punctured, with a furrow on shoulder. 

 L. 1| — 2 1. Scarce. P. armor aciae, Lin. 



JPhaedoii. 



A, Thorax distinctly punctured at base only. 



Short ovate. Brassy-black, punctulated ; antennae pitch- 

 black, basal joint pitchy-red. Head wnth a smooth im- 

 pressed line ; thorax very smooth, disc flattened, sides 



