Bui. 1066, U. S. Dept. of Agriculture. 
Plate IV. 
The Black-Walnut Curculio. 
and d, Female beetles excavating egg chamber in young black walnuts; b, egg; c, larva con- 
structing pupal cell in the ground; e, egg punctures "in young walnut; /,pupa;V> eggpunctures 
in walnuts. 
