THE HUMPBACK FLIES 257 



The Humpback Flies 



The humpback flies of the family Phoridae need not 

 be mentioned here especially, except for the fact that 

 one of the species, Hypocera (Phora) femorata, occurs 

 occasionally in houses, and possibly others of the family 



Fig. 34. — Phora femorata; greatly enlarged. (Original.) 



may also be found from time to time in domiciles. In 

 the collection of flies made in houses in 1900 there 

 were thirty-three specimens of P. femorata out of the 

 23,087 flies captured. The larval habits of this par- 



