CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 219 



the ground. Full grown in April. Total feeding period 5-6 months. 

 Spends the first 3 or 4 weeks of its life under a silken covering on the 

 under side of the leaf, afterward within a succession of folded leaves. 

 It folds the leaf along the mid-rib and forms its nest within. 



Pupa. — Dark yellowish-brown, but head, eyes and wing shields 

 black mottled with yellow. Duration about 10 days. 



Pig. 134. — Codling moth. A, adult moth with wings expanded; B, egg much 

 enlarged; C, half of worm-eaten apple; D, cocoon with empty pupa shell protruding; 

 E, cocoon with pupa enclosed; F, leaf and apple showing eggs of a codling moth; 

 G, caterpillar or "apple worm" enlarged; H, a, young apple just after petals fall; 

 b, cup beginning to close; c, too late to spray. {Montana Ag. Exp. St.) 



Codling Moth {Carpocapsa pomonella Linn.). — This European insect 

 is probably the most destructive of apple insects and is practically 

 cosmopolitan (Fig. 134). 



Adult. — A small greyish-brown moth, ^ inch expanse; fore wings 

 crossed by alternate irregular transverse waxy bands of brown and grey, 

 and with a large dark brown spot in the inner hind angle; hind wings 



