BEETLES. 161 



irregular bluish-green transverse bands. It is found in 

 North-Eastern Europe, on willows. 



* C. {Lino) populiy Linn. (Plate XX., Eig. 7). Blue-black, 

 with brick-red elytra, tipped with black. The sides of the 

 pronotum are slightly raised at the edges behind. It is 

 common on poplars. 



* C. (Liiia) tremula\ Eabr. (Plate XX., Eig. 8). This species 

 closely resembles the foregoing, but is smaller, and has the 

 edges of the pronotum more raised. It is found on poplars. 



* C. (Gastropliysa) polygoni, Linn. (Plate XX., Eig. 9). 

 Bluish-green, with the base of the antennae, the pronotum, 

 femora, and tip of the abdomen, red. It is common on knot- 

 grass {Polygonum). 



* C. {Plagiodera) armor acice, Linn. (Plate XX., Eig. 10). 

 Blue, green, violet, or coppery, with the base of the antennae- 

 reddish-brown. It is met with on willows. 



* C. {FhratoroL) vulgatissima^ Linn. (Plate XX., Eig. 11). 

 Metallic-bluish-green, greenish, or purple, with the base of 

 the antennae and border of the abdomen reddish. It is. 

 common on willows. 



* C. {Helodes) j^hellandrii, Linn. (Plate XX., Eig. 12). This 

 is an elongated species, with the lateral margins of the pro- 

 notum and elytra, and a straight longitudinal band on the 

 latter, yellow. It is common on Phellandrium, in the stalks. 

 of which the larva lives. 



Genus Adimonia, Laich. 



Wing-cases broader than the pronotum, expanded and 

 bulging behind. The third joint of the antennae is longer 

 than the fourth. The females are much larger than the males^ 

 and have a projecting abdomem. They live on various plants. 



