139 
Genus Anopheles. 
long vein have all brown scales except where the yellow costal 
spots are carried over them; fringe yellow at the apex, a small 
black patch separating it from the costal spot, a pale patch where 
the lower half of the fifth vein joins the border, all the rest dusky 
violet-black, except the “ border scales ” (Fig. 30, a), which are 
pale yellow in reflected light; first sub-marginal cell and second 
posterior cell of nearly equal length, base of the latter just a 
little nearer the base of the wing than that of the former; stem 
of the first sub-marginal about two-thirds the length of the cell ; 
stem of the second posterior equal to that of the former cell ; 
posterior cross-vein not quite half its length distant from the mid 
cross-vein ; mid cross-vein a little nearer the base of the wing 
than the supernumerary; the posterior cross-vein slightly the 
longest of the three; base of the first sub-marginal cell some 
distance from the junction of the sub-costal with the costal. 
Halteres with pale stem and dusky knob. 
Length. —5 mm.; proboscis, 2'5 mm. 
Habitat. —Tamsui, Formosa (Dr. G. Mackay) (2. 8. 1899); 
China (Wiedemann) ; Foo-chow (Rennie) (84) ; Tai Po, Pokfu- 
lam, Lamma (Rees). 
Time of capture. —June (Mackay), August (Rennie), October 
(Rees). 
Observations. —A somewhat denuded series of this species has 
been received from Dr. Mackay, and which I think is clearly the 
Anopheles Sinensis described by Wiedemann from China. It is 
closely related to A. annularis, Van d. Wulp, and A. barbirostris, 
Van d. Wulp, but differs, I find, in the following points : (1) from 
A. annularis by having the cross-veins closer together, especially 
the posterior cross-vein being nearer the mid cross-vein, in the 
larger size of the two costal spots, and on account of the base of 
the second posterior cell being a little nearer the base of the wing 
than that of the first sub-marginal; lastly the basal joint of the 
antennae is testaceous instead of black ; (2) from A. barbirostris 
it differs in having the apical fringe pure yellow, the presence of 
a pale spot on the fringe at the end of the lower half of the fifth 
long vein, the position of the cross-veins and the smaller size of the 
proboscis, and especially in the different form of the wing scales, 
which are shorter and broader in A. barbirostris (vide PI. A.). 
Since the above was written a series of this species has been 
received from Foo-chow, where, according to the collector, Mr. 
Rennie, it is rare, and another has been sent me by Dr. Rees 
from Hong Kong, but unfortunately again no males are present. 
