139 



ONCOMYIA Loew. 



O. abbreviata Loew. East Bolton VII (W); Montreal IX (C). 

 O. loraria Loew. Montreal VIII (Be). 



MYOPA Fabr. 



M. vesiculosa Say. Montreal VI (C). 

 M. vicaria Walk. Montreal (C). 



Family OESTRIDAE. 



The "Bot-flies" are usually large species, somewhat resembling bees. The larvae are 

 parasitic, living beneath the skin or in the stomach of domestic animals such as the ox, horse 

 and sheep, while deer, rabbits squirrels, etc., are attacked by other species. 



GASTROPHILUS Leach. 

 G. equi Fabr. Cowansville (Fy). 



HYPODERMA Clark 



H. bovis De Geer. Levis VII; La Trappe, Oka VII (Fr. Isidore); Richelieu VII (T. E. 

 Lareau); Covey Hill VII (Fetch). 



Family TACHINIDAE 



The "Tachinid-flies" are all parasitic on other insects, feeding on cut-worms and other 

 caterpillars to such an extent that a very small percentage escape their attack. The flies 

 resemble the housefly but have the bodies covered with an array of sharp spines. They are 

 sometimes laid on the skin of the caterpillar, and sometimes on the leaves and thus eaten with 

 the leaves. 



GYMNOCLYTIA B. & B. 



G. immaculate Macq. Quebec (Fy); Montreal VI and VIII (C). 

 G. occidua Walk. East Bolton VII (W). 



GYMNOSOMA Meig. 



G. fuliginosa Desv. East Bolton VII (W); Montreal VIII (C); Rigaud V (C); Hull VII 

 (Beaulne). 



