ENTOMOLOGY 837 
larva which they refer to the typical C. wnivittatus. According to Edwards 
(1922, loc. cit., XIII, p. 102), however, this was probably an immature larva of 
C. quasigelidus. 
C. univittatus is a West African species, which may, however, be identical 
with the Mediterranean C. pereviguus Theobald, the adults of these two forms 
being indistinguishable. 
Culex (Culex) ninagongoensis Edwards 
Culex ninagongoensis Edwards, 1928, Rev. Zool. Bot. Afric., XVI, 3, p. 324, fig. 1( 9 #). 
BELGIAN Conco. — Mt. Ninagongo, February 23, 1927; both sexes bred 
from larvae found in a small hole filled with spring-water, amidst lava rocks, at 
the altitude of 10,200 ft. 
The original description of this species is here reproduced: 
“Belongs to the pipiens group; resembles C’. pipiens in its very long upper fork-cell, but dif- 
fers markedly in male palpi and hypopygium. 
‘“ Male. — Head with yellowish scales above, the upright ones scarcely darker than the others. 
Proboscis entirely dark. Palpi entirely dark, the last two segments without white scales beneath; 
slender, almost bare, and only very slightly longer than the proboscis, last segment a little shorter 
than penultimate. Thorax with dark brown integument, scales light bronzy brown, almost uni- 
colorous. Abdomen with complete and rather broad yellowish bands at bases of segments. Hypo- 
pygium with the side pieces unusually short and thick, rather densely clothed externo-ventrally 
with short hair; claspers rather short, broad, and almost straight; basal division of lobe scarcely 
prominent, with three strong rods; apical division of lobe placed almost at tip of side-piece, bearing 
internally a pair of short rods, one very stout, and externally an oval leaf and a flattened seta. 
Basal parts of hypopygium almost as in C. andersont Edw. Legs blackish; all femora and hind 
tibiae with conspicuous yellow knee-spots; under surfaces of femora pale; hind femora with dark 
dorsal line and dark externally on the last sixth. Wings with linear dark scales; upper fork-cell 
about three times as long as its stem. Wing-length about 4.5 mm. 
“‘ Female. — Resembles the male in colouring. Proboscis rather paler beneath except towards 
tip. Palpi about one-sixth as long as proboscis. Under side of abdomen all yellowish, no dark 
apical bands on sternites. Wings with the upper fork even longer than in male, fully four times as 
long as its stem.” 
Culex (Culex) consimilis Newstead 
Culex tigripes var. consimilis Newstead, 1907, Ann. Trop. Med. Paras., I, p. 23 (9; Tshumbiri, 
Kasongo, Yambinga, Miambwe, and Leopoldville; all in the Belgian Congo). 
Culex consimilis Edwards, 1911, Bull. Ent. Res., II, p. 259; 1912, loc. cit., III, pp. 29 and 381 
(larva). Macfie and Ingram, 1916, loc. cit., VII, 1, p. 12 (larva and pupa). 
Culex pseudoannulioris Theobald, 1909, Colonial Office (London), Miscell. No. 237, p. 15, fig. (on 
p. 30) ( ?; Obuasi, Gold Coast); 1910, ‘Monogr. Culic.,’ V, p. 333, fig. 148 ( ¢). 
Culex annulioris var. congolensis Evans, 1923, Ann. Trop. Med. Paras., XVII, p. 91 (.%; Leopold- 
ville, Belgian Congo). 
Liperia. — Du River, Camp No. 3, July 1926. 
BELGIAN Conao.— Common on the Congo River, where it was taken on 
board ship at Bolobo and Lukolela, in December 1926. 
At our camp on the Du River this mosquito was bred from larvae living in 
an open pond of a forest clearing, together with those of Anopheles gambiae 
(No. 474). 
C. consimilis is chiefly a West African species, known from Sierra Leone to 
the Belgian Congo and Uganda. 
