Plate XL VI 



Stages of Simuliidae 



Fig. 1. Simulium joJiannseni, larva, dorsal view. 



Fig. 2. Simulium piscicidium, pupa, lateral view. 



Fiji'. 3. Simulium joliannscni, pupa, lateral view. 



Fig. 4. Simulium venustum, pupae in their cocoons. 



Fig. 5. The same, head and thorax of male imago. 



