Genus Culex. 
33 
curved grey scales in front of the scutellum; in some lights, 
under the microscope, the thorax appears almost grey in ground 
colour; scutellum brown, with narrow curved pale scales; meta- 
notum deep brown to almost black; pleurae dark brown, with 
several large creamy-scaled spots. 
Abdomen steely black when denuded, covered with jet-black 
scales, each segment with a pure-white basal band and lateral 
white spots; first segment deep ochraceous-brown; venter 
with broad basal bands of creamy-white scales, the apices of 
the segments being more or less dark; posterior borders of the 
segments with short pale bristles. 
Legs deep brown to almost black; coxae deep brown, with 
a patch of creamy scales, base of the femora and their under 
surfaces pallid ; apices of femora pale yellow to white, also the 
apices of the tibiae; in the hind legs the white apical tibial band 
is most strongly developed; ungues of the fore and mid legs 
black, equal, rather thick and uniserrated; hind ungues equal 
and simple. 
Wings with the veins clothed with typical dark brown Culex 
scales, and with a deep brown fringe; the first sub-marginal cell 
longer and narrower than the second posterior cell, its base just 
a little nearer the base of the wing than that of the second 
posterior cell, its stem less than half the length of the cell; stem 
of the second posterior cell equal to about two-thirds the length 
of the cell; posterior cross-vein about one and a half times its 
length distant from and considerably longer than the mid cross¬ 
vein ; supernumerary and mid cross-veins meeting at a slight 
angle; halteres with a pale ochraceous stem and fuscous knob. 
Length .—5 mm. 
Habitat. —Salisbury, Mashonaland (Marshall) (79). 
Time of capture. —February. 
Observations .—Described from a single 9 i 11 good preser¬ 
vation. It resembles very closely C. univittatus, mihi, from the 
same and other localities in Africa, &c., but can at once be 
distinguished by the two black patches on the head, by the 
ungues of the fore and mid legs in the female being serrated, 
and by the scale structure of the thorax. I have also seen, I 
think, a female of this species from Natal. 
VOL. II. 
D 
