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Family MUSCIDAE. 



The "Housefly" is the commonest member of the family and its love for filthy decay- 

 ing animal and vegetable matter has given a well deserved bad reputation as a carrier of 

 diseases, especially typhoid fever. The killing of a few million flies will have no permanent 

 effect in freeing the cities of these pests so long as refuse and decaying matter is allowed to 

 remain in streets, lanes, shops and dwellings. The presence of flies in quantities is a sure sign 

 of decaying matter and filth with the accompanying disease germs. If the flies do not spread 

 the germs something will. Keep the cities and towns clean and there will be no need to "swat 

 the flies" — there won't be any. 



POLLENIA Desv. 



P. rudis Fabr. Quebec (Fy); East Bolton VII (W); St. Johns IX-X (C); Montreal IV, IX 

 and X (C); Rigaud IX (C); Hull VII (Beaulne). 



CHRYSOMYIA Desv. 



C. macellaria Fabr. Montreal VII (Be). 



CYNOMYIA Desv. 



C. cadaverina Desv. Montreal VII (Be). 



• CALLIPHORA Desv. 



C. erythrocephala Meig. Montreal VII-VIII (C). 



C. vomitoria Linn. Levis (Fy.); Montreal VII-IX (C). 



LUCILIA Desv. 



L. caesar Linn. Levis VI (Fy); East Bolton VII (W); Montreal VII-VIII (C). 



PHORMIA Desv. 



P. regina Meig. Montreal VI (C); Hull VII (Beaulne). 

 P. terrae-novae Desv. Montreal VII (Be). 



PYRELLIA Desv. 



P. Serena Meig. East Bolton VII (W). 



MORELLIA Desv. 

 IVI. micans Macq. Mt. St. Hilaire VI-VII (C); Montreal VI-VII (C); Rigaud V-VII (C). 



MUSCA Linn. 



M. domestica Linn. The "Housefly" or "Tj^jhoid fly". Common everywhere. Larvae feed 

 in decaying animal or vegetable matter. 



