SIMULIIDAE OF AFRICA 



108 



110 



111 



113 



112 



114 



115 



117 v 118 119 



Figs. 108-119. Form of the ventral plate of o* genitalia in subgenera and species-groups of 

 African Simulium. 108, Anasolen. 109, Anasolen, at more tilted angle than ventral 

 view in figure 108. no, Freemanellum. in and 112, different views of plate in a 

 species of Freemanellum. 113, Wilhelmia. 114 and 116, Metomphalus, medusaeforme- 

 group. 115, Metomphalus, S. wellmanni. 117, Metomphalus, albivirgulatum-group. 

 118, Edwardsellum. 119, Odagmia. 



