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 
Fic. 11. The chestnut-weevil (Balaninus proboscideus): 
a, adult; b, same, from side-female; c, head of male, with 
its shorter beak; d, eggs; e, larva; f and_g, 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 
