214 



ECONOMIC ENTOMOLOGY 



matting the flour together and causing much damage. Full grown 

 in 40 days. 



Pupa. — Formed in a cocoon; duration 11 days; cylindrical, reddish- 

 brown above and lighter below; a cluster of small hooklets at tip of 

 abdomen. 



Control. — Fumigate with carbon bisulphide, carbon tetrachloride 

 or hydrocyanic acid gas; or better still raise room to high temperature 

 of 120-130° for 6 hours. 



Fig. 133. — Mediterranean flour moth (Ephestia kuehniella) : a, moth; b, same 

 from side, resting; c, larva; d, pupa; e, abdominal segments of larva; a-d, enlarged; 

 e, more enlarged. {After Chittenden, U. S. Bur. Ent.) 



Indian Meal -moth (Plodia inter punctella Hbn.). Adult. — A pyralid 

 moth, ^ inch wing expanse. Fore wings with outer portion red- 

 dish-brown with fine transverse markings, the middle copper and the 

 inner portion grey; hind wings grey. A new generation in about five 

 weeks. 



Eggs. — Small, whitish; as many as 350 eggs laid either singly or 

 in clusters; hatch in 4 days. 



Larva. — One-half inch long, whitish or pinkish, sparsely hairy. 



Pupa. — Cocoon elliptical-cylindrical. 



Gelechiid.^ 



Angoumois Grain Moth {Sitotroga cereal ella Oliv.). Adult.— A 

 small moth like a clothes moth; % inch long; yellowish-grey. Hind 

 wing dark grey, bordered with fine silvery fringe. Fore wing with a 

 black dot between base and middle. 



Eggs. — Milky-white to pale red;3^^o i^ch long; bottle-shaped; 60-90 

 eggs hatching in 4 to 10 days. 



J 



