220 



F. W. EDWARDS. 



the synonyms given previously I have added Duttoma africana, since specimens 

 received from Sierra Leone {A. Bacot) have convinced me that it is nothing more than 

 a variety of 0. tarsalis. On the other hand, since no males have been received from 

 the Seychelles Is., the name Reedomyia seychellensis is omitted ; and in addition, 

 Stenoscutus africanus proves on more careful examination to be a distinct species. 



Fig. 7. Male genital claspers of Ochlerotatus : — {a) O. adersi, Edw., sp. n. ; 



(b) 0. fryeri, Theo. ; (c) O. minutus, Theo. ; (d) O. tarsalis, Newst. ; (e) 



O. abnormaUs, Theo. ; (/) O. albo ventral is, Tiieo. ; (</) O. irritans, Theo. ; 



(h) O. nigricephalus, Theo. 



Ochlerotatus abnormalis, Theo. (fig. 7 e). 



Bailiosomyia abnormalis, Theo., Mon. Cul. v, p. 268 (1910). 



Stenoscutus africanus, Theo., Mon. Cul. v, p. 263 (1910). 



Ochlerotatus minutus var. stenoscutus, Edw., Bull. Ent. Res. iii, p. 22 (1912). 



I have remounted Theobald's slide of the genitalia of the type male, and give here- 

 with a figure of the clasper. I think there can be no doubt that S. africanus is the 

 female of this species. The lateral abdominal spots are dull creamy-white, not 

 brilliant silvery- white as they are in 0. minutus and 0. tarsalis. 



