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

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



H 



S 



:*-q 



& 

 ^ 



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



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



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



