CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 335 



Control. — Burn all the old stalks and rubbish as soon as crop is 

 harvested. 



The Black-snouted Rose Beetle (Rhynchiles hicolor Fab.) occurs 

 chiefly in the Transition zone and injures roses by puncturing the 

 flower buds, and blackberries and raspberries by puncturing the 

 fruit. 



Bronze Apple-tree Weevil (Magdalis cBnescens Leconte). — Young 

 apple trees are sometimes severely injured in B. C. and the Pacific 

 States. 



Adult. — A slender, blackish-bronze weevil, }-q inch long. April- 

 August. Feeds on the leaves. 



Eggs. — Smooth, shining, yellowish-white; 1 aid in holes in the 

 bark. 



Larva. — A plump, legless, white grub, }i, inch long; burrows under 

 the bark. 



Pupa. — Formed in the spring. 



Grape Curculio {Craponius incBqualis Say). — (Consult Bull. 730, 

 U. S. Bur. Ent.) This snout-beetle is one of the worst pests of the 

 grape in the Upper Austral Zone, East of the Rockies, the adult feeding 

 on the leaf in the spring and fall and the larva feeding on the pulp and 

 seeds of the fruit. 



Adult. — A short, robust, chocolate-brown, snout-beetle about jy-g 

 inch long. Thorax and elytra with prominent acute tubercles, and 

 body and elytra clothed with minute whitish scales. 



Eggs. — Oblong-elliptical, smooth, opaque, yellowish; deposited in 

 cavities in the fruit during July and August. About 250 laid by each 

 female. Hatch in 6 days. 



Larva. — A legless, fusiform, curved grub; white with light brown 

 head; 3^^ inch long; body sparsely covered with short fine hairs; 

 mature in 10-12 days. 



Pupa. — Short, stout, yellowish- white ; eyes and tip of beak reddish; 

 occupies a small spherical cocoon formed of earthen grains and lined 

 with a delicate membrane. Duration about 18 days. 



Natural Enemies. — Certain members of the following ant genera: 

 Solenopsis, Camponotus, Myrmica, Lasius, and Cremastogaster. Also 

 the parasites Anaphoridea and Microbracon. 



Control. — Spray with arsenicals on the first appearance of the beetles, 

 and again in 2 weeks. 



