CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 3II 



Interrupted Cottonwood Leaf Beetle {Lina interrupta Fab.) having 

 reddish-yellow elytra with rounded black spots, or transverse black 

 bands. 



Fruit Tree Leaf S3nieta {Syneta albida Lee). — A small brown or 

 yellowish- white leaf beetle, 1^ inch long, is sometimes injurious to fruit 

 trees in the spring in British Columbia and Oregon. 



Fig. 201. — The grape root worm (Fidia vilicida): a, beetle; b, eggs natural 

 size under fold of bark and much enlarged at side; c, young larva; d, full grown 

 larva; e, pupa; /, injury to leaf by beetles; g, injury to roots by larvae. {After 

 Marlatt, U. S. Bur. Ent.) 



Grape Root Worm {Fidia viticida Walsh). — A native American 

 insect, and widely distributed (Fig. 201). 



Adult. — A small brownish beetle, }^^ inch long; covered with whitish 

 hairs; body stout and legs long; June- July; eating holes in the leaves 

 of grape. 



Eggs. — Whitish-yellow, cylindrical, ^25 ii^ch long; laid in masses of 

 25-40 beneath old bark; hatch in 9-12 days. 



Larva. — Young grub feeds on roots and becomes nearly full grown 



