iul. 992, U. S. Dept. of Agriculturo. 



Plate I ! I 



The Walnut Husk-Maggot. 



a, Flies of husk-maggot on black walnut; b, fly of husk-maggot much enlarged; a, female in the 

 act of depositing eggs in a black walnut; d, female laying eggs and guarded by a male; e, female 

 with ovipositor extended. All enlarged. 



