NUTS OF THE FARM 27 



very finely adapted for such a life. The snout or rostrum 

 of the beetle is excessively elongated, especially in the female 



Fig. 11. Thechestnv.tweevil(.Balaninus proboscideus): 

 o, adult; &, same, from side-female; c, head of male, with ^ 



its shorter beak; c, larva; d, eggs; e, pupa from front 

 and from the side (from Bureau of Entomology of the 

 U. S. Department of Agriculture). 



beetle. The jaws are at its tip. It is used for boring 

 deep holes through the thick hulls, down to the kernel. The 

 egg is then inserted into the hole, and the larva hatching 



