THE INSECT WORLD. 



235 



made. The lan^a hatches and the Httle wound through which 

 the egg was laid heals so completely that no trace of it is visible 



Fig. 242. 



Work of the potato-stalk borer, Trichobaris 3-notata, in potato-vines. 



in the fully developed fruit. When the nut is ripe and drops to 

 the ground the larva is full grown, and eats a round hole in the 



