Bui. 45, Div. of Entomology, U. S. Dept. of Agriculture. 



Plate XIII. 



Favorable and Unfavorable Conditions for Weevil Activity. 



Fig. 49, Device used to test effect of temperature upon weevil activitv, one-tliird natural size; 

 tig. 50. comparison of pilosity on " King " (at left) and " Mit Atiti " '(at riglit) sterna, natural 

 •size; fig. 51, locality found very favorable to hibernation of manv weevils. (Original.) 



