THE HUMPBACK FLIES 
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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- 
