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Fannia caniciilaris etc. 
the flies from sugar beet and Brischke found the larvae in the stalks of 
rape, I have found them commonly in human excrement and in a 
variety of decaying vegetable substances, even in rotting grass. In 
England they may be found in the larval stages from May to October. 
Howard has reared them from human excrement during the same 
pei'iod in the United States. The eggs are Avhite and cylindrically 
oval. 
Fig. 1. Fannia canicularis. Larva, x 17. 
Larva. The larva of F. canicularis (Fig. 1) is wholly different from 
that of M. domestica ; its body being provided with a number of 
appendages or spiniferous processes. These are arranged in three pairs 
of longitudinal series and there are in addition two pairs of series of 
smaller processes. 
The body is compressed dorso-ventrally and the surface is roughened 
in character and in places spiniferous. It consists of twelve segments, 
