THE BROAD-BEAN WEEVIL. 
5 
semination is through the transportation from one locality to another 
of beans infested with live weevils. It is possible for the adults to 
escape both after the beans have reached their destination and while 
they are en route. Planting of these infested beans in a new locality 
is bound to result in an infested crop. 
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Fig. 4. — Map of California, showing counties from which the hroad-bean weevil has been 
taken or reported. 
NATURE OF DAMAGE. 
Damage caused by the broad-bean weevil is principally due to the 
fact that the larva feeds and transforms to the adult within the 
beans (PI. I, fig. 3, a, h). Many adults remain in the beans for sev- 
eral months, and their presence renders the beans unfit for food. 
Some adults emerge soon after forming, leaving round holes in the 
