LEGUMINOUS CROPS. 



31 



The Trefoil Weevil (Apion flavipes, Tig. 11) 

 belongs to a large family {ApionidcB) of small beetles. 

 Many of tbem do not exceed one-eigbtb or one-twelfth of 

 an inch, in length. They are wingless, but possess well- 

 developed wing-cases (elytra). Both the head and thorax 

 are comparatively small and narrow. The former is pro- 

 longed into a rostrum (snout) of considerable length. The 

 antennae form lateral appendages to the rostrum (Fig. 11 B). 



Fig. 11.— TsEroii Weevil {Apion flavipes). 



A. Larvae of A^itm feeding on trefoil. 



B. The beetle (enlarged). 



The wing-cases are of various hues (green, blue, black, or 

 red). 



The larvse (Pig. 11 A) of Apion flavipes feed on and 

 are very destructive of trefoil. The perfect insect (imago) 

 is black, with red legs. 



Prevention. — Liberal manuring and the use of soot and 

 lime tend to lessen the attacks of this insect. 



The Trefoil Moth {Zygcsna trifolii). "This moth 

 flies about in the day-time, and has deep metallic green or 



