SIMULIIDAE OF AFRICA 



155 



140 



142 



144 



146 



145 



147 



148 



149 



150 



151 



152 



153 



155 



Figs. 140-155. Form of coxite and style of o* genitalia in subgenera and species-groups of 

 African Simulium. 140 and 141, Pomeroyellum. 142, Eusimulium, aureum-group. 143, 

 and 144, Eusimulium, ruficorne-group. 145, Lewisellum (form similar in Meilloniellum) . 

 146, Phoretomyia. 147, Freemanellum. 148, Xeno simulium. 149, Anasolen. 

 150, Edwardsellum 151, Wilhelmia. 152, Me tomphalus, most forms. 153, Metomphalus, 

 S. wellmanni. 154, Byssodon. 155, Odagmia (form similar in Tetisimulium and Simulium 

 s. str.). 



