173 



emerges, when it is f(pun(l tlmt tlip greater jiart of tlie inside luis beeu coii- 

 suincd. In wlieat anil otlier small eereals a single larva inhabits a grain, 

 lint a kernel of corn furnishes food for several individuals. The mature 

 beetles also feed upon tlie grain, and live for a long time, so that iu warm 



^> ^^ 



(Fig. 01.) 

 (9) Uice Weevil; 1.7) Common (iranary Weevil, 

 places where grain is kept in store for a length of time, the injury may be 

 considerable. In the course of a single year, it has been estimated that one 

 pair of these weevils will produce 6,000 descendants, so it can be readily 

 .seen that the.v are capable in a short time of doing much damage. 



KicE Weevil (Calnni}ra or]i:a-, L.) 

 This insect differs somewhat in size and general ai>pearau<-c from the 

 granary weevil. Unlike that .species, it possesses fully-develoiied wings, has 

 two yellowish blotches on each wing-case, is slightly smaller and of a pale 

 brown colour. The life history of this insect is similar to that of the jireced- 

 ing species, except that in very warm climates the beetles are often found in 

 fields away from any granary, and iu the extreme South and iu the Tropics 

 the females lay their eggs in standing grain. The rice weevil is often found 

 injuring stored grain in company with the granary weevil. 



AjiGOUMois Gr.\in Moth (Sitotror/a cerealclla. Or..) 

 In (^'anada the grain moth has never developed sufflciently to be consid- 

 ered an important enemy of stored grain. In southern climates, however, 

 where it is very abundant, this insect is a liad pest. The moths fly from the 

 granaries to the field and lay their eggs upon the standing grain. The eggs. 

 or young caterpillars are thus carried with the threshed grain into the 

 granary, where they develop and cause great loss. The moths, however, 

 have not so far been recorded as laying their eggs upon standing grain iu 

 Canada, and where damage has occurred, it has beeu to infested grain which 

 has been imjiorted. The eggs are deposited in groups of from l.j to 2."). 

 generally upon the under side of the grain or in the crease of the kernel. 

 They are white at first, turning pink before hatching. The young caterpillar 

 is a minute creature, slender, and covered with long hair. When mature it 

 is two-fifths of an inch in length, and of a dirty white colour. As a rule 



