216 A Monograph of Culicidae. 
little nearer the base of the wing, its stem equal to half the 
length of the cell, stem of the second posterior cell nearly as long 
as the cell ; posterior cross-vein about half its own length distant 
from the mid cross-vein ; scales on the sub-costal, first long vein 
and bases of the others rather broad and short. Halteres pallid. 
Length.—7 mm. 
Habitat.—Bahr-el-Ghazal, Central Africa (Captain Cummins, 
R.A.M.C.); Uganda (Drs. Low and Moffat). 
Observations.—Described from a single @ sent by Captain 
Cummins in paper, but perfect except the ends of the hind legs. 
It is a large and handsome species, unlike anything else I have 
seen from Africa. Numerous specimens have also been recently 
sent from Uganda. When these are studied I fancy it can 
easily be removed from Culea (sens. strict). 
CuLEXx INvipIosus. Theobald. 
(Mono. Culicid. II., p. 329, 1901.) 
Additional localities.—Nigeria (A. H. Hanley), July and 
August, two 9’s ; Sierra Leone. 
CULEX GENICULATUS. Olivier (1791). 
Culex hortensis. Ficalbi (1889). (2) 
(Encyclop. Méthodique, Hist. Naturelle, Insectes, T. 16, Olivier; Bull. Soc. 
Ent. Ital., p. 292 (hortensis), Ficalbi.) 
Thorax dark brown, covered with narrow-curved pale mouse- 
coloured scales, showing traces of two median dark lines and traces 
of lateral lines—only seen in certain lights ; palpi of the female 
dark brown, with a band of white scales in the middle. Abdomen 
deep blackish-brown, with narrow apical white bands. Legs 
blackish, with clear white knee spots; ungues of the ? all equal 
and simple of the male, the fore and mid unequal, the larger 
uniserrated, hind equal and simple. 
?. Head brown, with pale narrow-curved scales almost 
white round the eyes, blackish upright forked scales and yellow 
bristles ; proboscis black ; palpi covered with black scales, with 
a median band of white scales ; antennae black, basal joint and 
base of second joint partly testaceous, with white scales. 
Thorax dark brown, covered with narrow-curved scales of a 
mouse colour, with three rows of black bristles, traces of two 
