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THE BOOK OF CORN 



occasionally invades Canada and Alaska. It is most 

 troublesome in the southern states, where it is com- 

 monly, but erroneously called the "black weevil." 

 Large cargoes of grain have frequently been destroyed 

 during transportation by this insect. The annual 

 losses by it are very great in India, Mexico, South 

 America and other tropical countries. It. resembles 



Fig 76— Grain Weevils 



Calandra gra?iaria : a, beetle; b, larva; c, pupa; d, C. oryza beetle — all en 

 larged (after Chittenden) 



the granary weevil in size and in general appearance, 

 but has well developed wings. It is a dull brown and 

 its wing covers are ornamented with four more or less 

 distinct red spots. The larva and pupa are similar to 

 those of the granary weevil. Although the rice weevil 

 feeds upon rice, it attacks a great variety of other 

 cereals, particularly corn and wheat. 



