HOUSEHOLD AND CAMP INSECTS 



weeks, consequently there may 'be a number of generations in a 

 year. Continuous breeding occurs in warm buildings. 



The meal snout moth with its different shades of brown and 

 reddish reflections has a wing spreac^of about three-quarters of an 

 inch. The whitish caterpillar has a brown head and lives in long 

 silken tubes. It subsists mostly upon cereals though it has been 



* u \s 



Fig. 27 Meal snout moth: a, adult; b, larva; c, pupa in its cocoon; twice natural 

 ize. (.After Chittenden, U. S. Dep't Agr. Div. Ent. Bui. 4. n. s. 1896) 



recorded as feeding upon other seeds and dried plants and dis- 

 playing a preference for clover. There are probably at least four 

 generations annually since the life cycle may be completed in 

 8 weeks. 



The European grain moth or wolf moth 80 is a grayish, irreg- 

 ularly dark brown-spotted insect having a wing spread of about 

 half an inch. The yellowish white, brown-headed caterpillars are 

 about one-fourth of an inch long and form characteristic dull 

 reddish brown masses composed of groups of cocoons with the 

 meshes loosely filled with brownish, gnawed materials. This 



Fig. 28 Kernels of corn eaten by 

 European grain moth, enlarged. 

 (Author's illustration) 



Fig. 29 Cocoon masses of European 

 griin moth, enlarged. (Author's illus- 

 tration) 



79 Pyralis farinalis Linn. 

 80 Tinea g r a n e 1 1 a Linn. 



