Fig. 26. The cheese fly (Piophila casei) : a, larva ; b, puparium ; c, pupa; 

 d, adult male; e, adult female ; all enlarged. (Author's illustration.) 



Fig. 27. The fruit fly (Drosophila ampelophila) ; a, adult male; 



b, antennae ; c, fore tibia ; d, e, puparium ; f, larva ; g, anal segment 



of larva; enlarged. (Author's illustration.) 



