INSECTS INJURIOUS TO STORED GRAINS 



189 



however, the good trait of feeding on other injurious grain- 

 insects. The beetle is oblong, flat, nearly black, and about 

 one'-third of an inch long. The larva is of a whitish color, with a 



FIG. 138. TheCadellc (Tenfbroides mauritanicus) : a, adult l>eetle with greatly 

 enlarged antenna alxve; b, pupa; c, larva -all enlarged. (After 

 Chittenden, U. S. Dept. Agr.) 



brown head, the thoracic segments are marked with brown, and 

 the abdomen terminates in two dark horny processes. It is a 

 fleshy grub, nearly three-fourths of an inch long when full grown. 



Flour- and Meal-moths 



. The larva? of several small moths sometimes infest grain 

 in store, but rarely do it serious damage, preferring the softer 

 flour, meal, and food-products. 



The most destructive of these is the Mediterranean Flour- 



