Genus Culex. 171 
to some extent the lower branch of the second fork-cell, rather 
larger than in most Culex and very dark. Halteres pale. 
Length.—4°5 mm. 
Habitat.—Gambia (Dutton) ; Free Town (Austen). | 
Time of capture.—September (Austen) ; November (Dutton). 
Observations.— Described from a single ? bred from a larva 
found in a drain at Free Town by Mr. Austen. A specimen 
brought back by Dr. Dutton is evidently this species, but it is 
too damaged to be sure of its identification. Aye. 
This species differs from Culex dissimilis, Theobald, in that 
the base of the first fork-cell is nearer the base of the wing than 
that of the second posterior-cell, but it is closely allied. Dr. 
Dutton found that Filaria nocturna only partly developed in it. 
CULEX APICALIS. n. sp. 
Proboscis with a faint pale band. Thorax rich umber-brown, 
with scanty irregular ornamentation of pale golden scales. 
Abdomen brown, with apical silvery spots, especially prominent 
in the g and almost forming bands. Legs dark brown, with 
the femora and tibiae spotted, and the tarsi with basal white 
bands. 
Q. Head with narrow-curved grey scales and numerous 
black upright forked ones ; proboscis dark brown, with a narrow 
pale band on the apical half, very distinct in some lights ; palpi 
dark brown, with a few white scales at the apex, apparently 
truncated ; antennae brown, with narrow pale bands. 
Thorax deep rich umber-brown, with narrow-curved dull 
scales and some pale golden ones giving irregular ornamentation, 
especially at the sides, and a few in the middle of the meso- 
thorax ; scutellum brown (denuded), with eight median lobe 
border-bristles ; metanotum rich brown; pleurae bright brown, 
with patches of pale scales. 
Abdomen deep brown, with apical silvery white lateral spots, 
which show on the dorsum ; apical and basal segments all brown ; 
border-bristles dull brown ; venter ochraceous. 
Legs deep brown ; the femora and tibiae with creamy white 
spots, especially prominent on the latter ; the femora have a clear 
garter-like ring near the apex ; fore and mid metatarsi and first 
two tarsals with narrow basal white bands; hind tarsi all 
basally banded, tibiae with pale hairs; ungues equal and 
simple. 
