198 HOUSEHOLD INSECTS 



gray. There is a tiny dark spot about midway of the 

 hind edge of each wing and two similar dots with a 

 dark area at the apex of each wing. The hind wings 

 are light gray in color, while the head bears a tuft of 

 long white hairs. 



The larvse feed on a variety of materials, such as pelts, 

 felts, carpets, horse blankets, and upholstering of carriages. 

 In England the larvae are met with more frequently in out- 

 houses where carriages are kept than in the dwelling-houses. 

 The larvae burrow inside of the material upon which they 

 feed when this is thick enough to enable them to do it. 

 They, therefore, do not construct cases, but they do line 

 their burrows with silk. On account of this borrowing 

 habit these larvae destroy much more material than they 

 eat. Within these galleries it undergoes its transforma- 

 tions to the pupal stage. 



One of the parasites (Apanteles carpatus) on the case- 

 making moth has also been reared from the tapestry moth. 



METHODS OF CONTROL 



First of all, it should be definitely understood that 

 odors emanating from small quantities of various sub- 

 stances like camphor balls, cedar, or naphthalene, have 

 no killing effect on the moths or larvae. Cedar chests or 

 closets lined with cedar are of no avail if eggs are once 

 deposited on clothes stored in them. Apparently, the 

 odor of cedar has some effect in keeping the moths 

 away. The odor of camphor balls also has a repelling 

 effect on the moths. But a few moth-balls placed among 

 clothes in a chest do not prevent injury if eggs are deposited 

 on the garments before the latter are put away. The 



