153 

 PSEUDOTEPHRITIS Johnson 



P. vau Say. Montreal VI (Be). 



CHAETOPSIS Loew. 

 C. massyla Walk. Rigaud VIII (Be). 



SEOPTERA Loew. 



S. vibrans Linn. Levis (Fy); Montreal (Cd); Chateaiiguay VII (C); Gatinoau VII (Be^; 

 Hull VII (Beaulne). 



Family TRYPETIDAE 



Called "Peacock flies" on account of their habit of strutting about like peacocks with 

 their prettily marked wings elevated. The flies are gracefully built, fly slowly and keep their 

 wings constantly in motion. Many of the species feed on the leaves or stems of plants, some 

 causing very conspicuous galls to form. 



STRAUSSIA Desv. 



S. longipennis Wied. Quebec (Fy); Montreal VI (Cd). 



ACIDIA Desv. 



A. fratria Loew. Prov. Que. (Johnson). 



TRYPETA Linn. 



T. ruficauda Fabr. ( = florescentiae Fallen). Throughout Province (F); Destroys seeds 

 of Canada Thistle. 



RHAGOLETIS Loew. 



R. pomonella Walsh. Covey Hill; Montreal; Como (Lochhead). The apple maggot. 



EUTRETA Loew. 

 E. sparsa Wied. Quebec (Fy;) Montreal VII (Be). 



EUROSTA Loew. 



E. solidaginis Fitch. Montreal V-VI (W); Como (Fy). Makes spherical galls on Golden 

 Rod stems. 



