Genus Culex. RS 
cell, its base a little nearer the apex of the wing to nearly 
level with it, its stem less to more than half the length of the 
cell; stem of the second posterior more than half the length of 
the cell; posterior cross-vein longer than the mid, not quite its 
own length to twice its own length distant from it. 
Halteres with an ochraceous stem and pale fuscous knob. 
Length.—3°5 to 4 mm. 
$- Palpi deep brown, black at the apex, the last two joints 
of nearly equal length, with black hairs, and also a black hair 
tuft on one side of the apex of the antepenultimate joint ; a very 
minute pale band may be detected towards the base of the palpi. 
Antennae and proboscis deep brown. Thorax, abdomen and legs 
as in the 9; fore and mid ungues unequal, both uniserrated, 

Hig. 112. 
Culex viridis. mn. sp. 
o genitalia. 
black ; hind, small, equal and simple. Wings with the fork-cells 
small, the first sub-marginal longer and narrower than the 
second posterior, its stem half as long as the cell, its base about 
level with that of the second posterior, whose stem is about two- 
thirds the length of the cell. Halteres with pale stem and 
dusky knob. Claspers much curved (fig. 112). 
Length.—3°5 to 4 mm. 
Habitat.—Busé, Uganda (Dr. Low) ; Gambia (Dr. Dutton). 
Time of capture.—October. 
Observations.—Described from a perfect ¢ and 9? bred by 
Dr. Low. It is a small delicate species somewhat resembling a 
