CASE-BEARERS FEEDING ON THE LEAVES 



307 



short case, which it carries to a twig and in which it spends the 

 winter. 



The remedy is an appHcation of arsenate of lead or Paris green as 

 soon as the caterpillars are seen feeding. 



Fig. 467. — Larval cases of the Pistol Case-bearer. Enlarged. Original. 



The Pistol Case-bearer (Coleophora malivorella Riley) has a similar 

 life history and does about the same injury. It is distinguished from 

 the above by the shape of the larval case, wliich in this species is 

 slender, somewhat tapering, and distinctly 

 curved. 



The Bag-worm 



( Thyridopteryx ephemeroeformis Steph.) 



This curious larva makes a bag out of 

 silk and pieces of leaves as a protection 

 to its body. The female is wingless and 



never leaves 



the bag. The 



male is a small, 



clear-winged 



moth. Eggs 



are deposited 



by the female 



within the bag, and remain there until the 



following spring. 



Removal of the bags in winter will put a 



Fig. 468. — Larval case of the 

 Bag-worm. Original. 



Fig. 469. — Adult male of 

 the Bag-worm. Slightly 

 enlarged. Original. 



