IXSHCTS L\Fl:STIi\G THIi ONION. 



The Onion Maggot (Anthotnijia cepanim) Chap. 227 



CTIAPTKR CCXXVII. 



The Onion Maggot. (Cal.) 



{Antli(iiiii/ia ccjxim.iii. — Liiunfus.) 



Order, Dipteka ; Family, MrscicE. 



[Boring into the bulb of the onion, causing it to wilt and 

 decay; a white footless maggot, wliieh tai)ers at one end, the 

 opposite end appearing as if oblicpiely cut off, and marked 

 near the middle with two elevated eye-like Ijrown dots.] 



Fis. 336. 



Fiu;. 380. — An Onion 



Fig. 337. 



infested l)y Onion Mag- 

 gots — color of maggots, 

 white. 



Fig. '■Vol. — Onion Fly, 

 enlarged — colors, ashy- 

 gi-ay and black. 



When fully grown thcsg 

 maggots sometimes as. 

 sume the pupa form in a cavity 

 which they have gnawed in the 

 onion (Fig. o."](j), l)ut they usually l)urrow a sliort distance into 

 the earth and form a small cell ; here the change to the pupa 

 state takes place, and the perfect fly issues in the course of a 

 wi'ck or so. This fly (Fig. 387) closely resembles the 

 common house-fly, but is more slender; it is of an ashen-gray 

 color ; the face is silvery, Avith a rust}' black stripe between 

 the eyes, and there is usually a black strii)e or row of lilack 

 spots along the back. 



Remedy. — Use same as recommended in Chap. CC"X\'11I. 



