F. W. EDWARDS — FURTHER NOTES ON AFRICAN CULICIDAE. 49 



Ochlerotatus durbanensis, Theo. 



Additional localities : -ABYSSINIA : Mt. Fantali, 4000 ft., 21 viii. 1908 

 (Dr. R. E. Drake-Brockman). Uganda : L. Bogosu, 19. xi. 1912, numerous 

 on rim of crater morning and evening (Dr. R. E. McConnell). 



The Uganda specimens differ from those from Durban and Delagoa Bay in 

 having the yellow apical markings of the abdominal segments forming complete 

 bands instead of lateral spots. 



Ochlerotatus geniculatus, Olivier. 



Culex geniculatus, Olivier, Encycl. Method, vi, p. 134 (1791). 



Culex lateralis, Mg., Syst. Beschr. i, p. 5 (1818). 

 Elsewhere (Ent. Mo. Mag., May 1913) I have given in full my reasons for 

 the above substitution. After careful consideration it seems advisable to refer 

 back the two specimens named previously (). ornatus, Mg. (Bull. Ent. Res. iii, 

 p. 21) to O. penicillatus, Oliv., and accept as the true (). ornatus, Mg., the 

 species so designated by Ficalbi, of which I have recently received a pair from 

 Hungary. The North African specimens constitute a distinct variety of O. 

 geniculates, differing from the European form in having complete white bands 

 (though narrow in the middle) on the abdominal segments, and flat scales on 

 the scutellum. Until more specimens come to hand, however, it does not seem 

 advisable to name this form. 



Ochlerotatus salinus, Fie, 



Culex salinus, Ficalbi, Bull. Soc. Ent. Ital., xxviii, p. 29 (1896). 

 This is the species referred to in the writer's earlier papers as (). nenwrosus, 

 Mg. It differs from the true nemorosus in having dark and light scales inter- 

 mixed on the wings, femora, and tibiae ; it breeds in salt-marshes, whereas 

 O. nemorosus is almost confined to woods and heaths. 



Ochlerotatus quasiunivittatus, Theo. 



An examination of mounted male genitalia of specimens from Salisbury, 

 Mashonaland, and Nairobi, British East Africa, led to the quite unexpected 

 conclusion that the insects from these localities are distinct species, as the genitalia 

 differ very markedly. The name quasiunivittatus must be retained for the 

 Mashonaland form, while the East African form may be referred, for the present 

 at least, to O. dentatus. In this species the hind claws may or may not be toothed. 

 (). caliginosus, Grab., from Ashanti, though appearing distinct from being smaller 

 and much blacker, has genitalia almost exactly like those of (). dentatus. and may 

 eventually have to be ranked as a variety of it. The genitalia of O. cumminsi, 

 Theo., are also very similar. 



Aedes (Skusea) pembaensis, Theo. 



This was previously (Bull. Ent. Res. iii, p. 13.) included with doubt in 



Howardina, as only Theobald's type, in very bad condition, was known. Recently 



however a small series of females has been received from Mr. S. A. Neave, who 



took them near Siyu, Patta Island, British East Africa, 19-20. ii. 1912. In 



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