Plate XL VI 



Stages of Simnliidae 



Fig. 1. Simvlium joliamiseni, larva, dorsal view. 

 Fip:. 2. Simulium piscicidi}irn, })upa, lateral view. 

 Fiji'. 3. Sinudium joliannsem, pupa, lateral view. 

 Fif?. 4. Simulium venustum, pupae in their cocoons. 

 Fig. 5. The same, head and thoi-ax of male imago. 



