334 
Appendix. 
Legs brown, unbanded, ventral surface of the femora nearly 
white ; ungues equal and simple. 
Wings with pale brown typical Culex scales; fork-cells rather 
long and narrow, the first sub-marginal longer, but no narrower 
than the second posterior cell, its base nearer the base of the 
wing than that of the latter, its stem less than one-third the 
length of the cell : stem of the second posterior cell less than 
one-half the length of the cell; supernumerary cross-vein long 
and sloping, forming a very acute angle with the mid cross-vein ; 
posterior cross-vein longer than the mid, about one and a-half 
times its own length distant from it. 
Halteres ochraceous. 
Length. —5 to 5 * 2 mm. 
$. Palpi ochraceous, covered with dark brown scales, a 
small pale band near the base, the last two joints with dense 
black hairs, and also on one side of the apex of the ante¬ 
penultimate joint ; antennae banded, brown and grey, with deep 
flaxen-brown plumes; proboscis deep-brown, apex testaceous. 
Abdomen narrow, expanding apically, the fourth and fifth 
segments with basal white bands, the apical ones as in the 9 j 
moderately hairy. Fore and mid ungues unequal, the larger one 
uniserrated, the smaller with a tooth near the base, hind equal 
and simple. 
Length. —5 to 5 * 3 mm. 
Time of capture. — August. 
Habitat. —West Africa (Annett). 
Observations. —Described from five specimens in Dr. Annett’s 
collection. A very distinct species, with hoary scaled thorax, which 
has a dull golden tinge, however, in some lights; the banding of 
the abdomen and the form of the cross-veins are also characteristic. 
The original spelling of the specific name is wrong; it should 
not be pruina, but pruinosus. 
10. Culex decens. Theobald. 
(Kept. Liverpool School Trop. Med.p. vii. App. 1901.) 
Thorax deep brown to black, with chestnut-brown scales. Abdo¬ 
men almost black, with basal regular white bands on the third to 
fifth segments, which widen out prominently on the sixth and 
seventh to form clear lateral spots. Legs dark brown, unbanded. 
9 . Head almost black, with small narrow curved creamy 
scales and numerous dark upright forked scales, quite black in 
some lights, the pale scales form a distinct line round the eyes ; 
clypeus dark brown ; palpi deep black ; antennae dark brown, 
with black verticillate hairs and pale pubescence; proboscis deep 
bronzy-brown. 
Thorax black, deep brown in some lights, with very narrow 
