﻿32 F. W. EDWAKDS — A SYNOPSIS OF THE SPECIES OF 



13. C univittatus, Theo., Mon. Cul. II, p. 29 (1901). 

 Add to synonymy : 



Culex per exiguus, Theo., Mon. Cul. Ill, p. 199 (1903). 



Culex goughii, Theo., U. South Afr. Dept. Agric, First Rept. Vet. lies., 

 p. 268 (1911) (Q only). 

 C. goughii is described as " A rather obscure species of fatigans type, but can 

 be easily told in both sexes by the white scaled line on the palpi, which is ventral 

 and very marked in the male." This white-scaled line on the under side of the 

 last two joints of the male palpi is characteristic of the pipiens group of species, 

 and occurs in a modified form in C. univittatus. In every one of 380 males of 

 C. pipiens, C. fatigans, etc., examined by the writer, this character was present 

 and showed no variation. The male type of C. goughii is a typical C. pallidoccphalus. 

 Additional localities: Palestine (C. perexiguus) ; S. Spain, four typical 

 specimens in British Museum (Major P. Fowler, July, 1909) ; Mauritius; Sudan; 

 Gambia ; S. Nigeria ; Gold Coast ; N.E. Rhodesia ; Brit. E. Africa ; British 

 Central Africa ; Transvaal ; Natal. One specimen from Salisbury, S. Rhodesia 

 (G. A. K. Marshall) appears to belong to this species, yet lacks the most striking 

 feature — the tibial stripe. This specimen superficially much resembles 

 Ochlerotatus quasiunivittatus. One or two specimens sent by Dr. Ingram, from 

 the Gold Coast, show traces of a pale band on the proboscis, more especially on 

 the under surface, quite half of which is dull ochreous. This is another point 

 oi resemblance to C. duttoni, but the two are quite distinct. The larva of 

 C. duttoni has a thick, swollen air-tube, rather like that of a Janthinosoma ; 

 while in C. univittatus the air-tube is long and thin, as in most species of Culex. 



14. C. pygmaeus, N.-L., Arch. Parasit. X, p. 256 (1906). 



" Espece de petite taille a coloration generale fauve . . . Trompe jaune 

 . . . Pattes fauves . . . Abdomen brun, annele de jaune a la base des 

 segments." The species is a true Culex, and from the above statements would 

 seem to be well distinguished from other African forms, notably by the yellow 

 proboscis. 



Abyssinia (Imi, Brumpt). 



15. C. pipiens, L., etc. 



Messrs. Dyar and Knab distinguish several American species in this group by 

 means of the basal parts of the male genitalia. They consider C. fatigans, 

 Wied., to be a synonym of C. quinquefasciatus, Say. It is very likely that a 

 careful study of the male genitalia of African specimens would enable one or two 

 forms to be properly separated from C. pipiens, but this does not seem possible on 

 external characters. I am inclined to think that C. pallidocephalus (= stoehri) 

 may be distinct from C. pipiens ; the thorax is a good deal darker and shows in- 

 distinct lines of pale scales, somewhat as in O. dentatus. When I sank this as a 

 variety of C. pipiens I had seen only two or three specimens ; a number of others 

 have now been received. 



C. didieri, N.-L. (Arch. Parasit. X, p. 257, 1906), apparently belongs to the 

 pipiens group. 



16. C. decens, Theo., Rept. Liverp. S. Trop. Med., Mem. IV, App. p. vii (1901). 

 Additional locality : Gold Coast. 



