SIMULIIDAE OF AFRICA 



147 



66 



65 



68 



70 



71 



Figs. 65-71 . Adult head form in Ethiopian Simuliini. 65, usual form in profile of $ Simul- 

 ium s.l. 66, usual form in profile of $ Simulium s.l. 67, form in profile of <$ Afrosimul- 

 ium. 68, form in profile of $ Afrosimulium. 69, profile of head and appendages of $ of 

 Simulium, (Dexomyia) atlanticum sp. n. from St. Helena. 70, head shape in dorsal view 

 of almost all Simulium s.l. $. 71, head shape in dorsal view of $ of S. {Dexomyia) 

 atlanticum sp. n. from St. Helena. 



