Bui. 491 , U. S. Dept. of Agriculture. 



Plate XXIII. 



Reproductive System of the Female Melon Fly. 



Reproductive system of the adult female melon fly: a, System as a whole; b, egg tube from ovary of 

 newly emerged female; c, same as 6, 23 days after emergence (January) of adult; d , same as 6, 33 days 

 after emergence (January-February) of adult; e, egg tube containing) mature egg ready to be fer- 

 tilized. Highly magnified. (Original.) 



