Genus Anopheles. 
131 
the cell. Mid cross-vein short, lying a little nearer the base of 
the wing than the supernumerary cross-vein. Posterior cross-vein 
as long as the supernumerary, rather more than half its length 
distant from the mid cross-vein. 
Halteres pale, with fuscous knob. 
Length. —5 to 5 • 5 mm. 
. Head brown, with a few curved white scales in front, 
white upright ones on the front and the middle; brown, tipped 
with ochraceous, on the occiput; on the nape a row of pale upright 
ones, and a tuft of white hairs projecting forwards between the 
eyes; antennae banded grey and testaceous; basal joint dark 
brown, testaceous inside, plume hairs flaxen; palpi dark brown, 
almost black, last two joints much swollen, with three irregular 
white bands on the apical portions, hair-tufts dark brown, another 
faint band noticeable towards the base ; fore ungues unequal, 
the larger one with a distinct tooth, the smaller very minute, 
simple; mid and hind ungues equal and simple. 
Length. —5 to 5 • 5 mm. 
Habitat. —Salisbury, Mashonaland (Marshall) (79) ; British 
Central Africa (Daniels) (82); Gold Coast (Osborn Brown) (81); 
Mauritius (Bigot). 
Time of appearance. —January, March, and October in 
Mashonaland. 
Observations. —A number of specimens sent by Mr. Marshall 
from Mashonaland very closely resemble A. paludis, mihi, but 
they differ in several minor points, which are, I feel sure, of 
non-specific value. I therefore describe these Central African 
a. 
forms as a variety of the Sierra Leone species 'previously 
described. The chief points of difference are in (1) the leg 
banding and (2) the absence of the pale patch on the wing 
fringe. There is evident variation in the leg banding in the few 
specimens sent, but in no case is the second hind tarsal all white, 
as in paludis , nor do we find in paludis the basal banding seen in 
the Mashonaland specimens. This variety also occurs on the 
Gold Coast, differing in no ways from the Central African form. 
Unfortunately I have not seen a £ of paludis , so the 
ungues, which often form a clue as to the identity of the 
species in the £ , might prove that the colour variation here 
described is one of specific value, but I fancy the two forms 
are as nearly related as A. Sinensis, Wied.,'and A. pseudopictus, 
Grassi. I find a specimen undoubtedly of this variety in Bigot’s 
collection from Mauritius. 
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