Genus Culex . 
79 
scales, each segment with traces of basal white banding and 
white scales on the sides. 
Legs yellowish-brown ; the femora, especially the hind ones, 
with dusky scales above ; knee spots pale. 
Wings with the veins yellowish-brown; 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 latter, 
the cell about twice the length of the stem; stem of the second 
posterior cell a little longer than that of the first sub-marginal 
cell, more than half the length of the cell; cross-veins very 
characteristic, the supernumerary cross-vein is nearer the base 
of the wing than the mid cross-vein and considerably shorter, 
a. 
a. 
r 
Fig. 188. 
Culex consdbrinus, Rob. Desvoidy. 
a, Wing of ? ; b, cross-veins of C. consdbrinus ; 
c, cross-veins of C. consdbrinus (typical); d, head 
of ?. 
the posterior cross-vein is longer than the mid and close to it, 
in one specimen almost on a level with it. 
Halteres with an ochraceous stem and dark knob. 
Length .—Of body 6 to 7 mm.; of wings 8 mm. 
Habitat .—Colorado ; Argus Mountains (Will.); St Martin’s 
Falls, Albany River, Hudson Bay (Wlk.). 
Observations .—This large species is perfectly distinct from 
C. joijpiens, L., and I cannot see how Lieut.-Col. Giles in any way 
made it synonymous. It is a very distinct mosquito, with wings 
considerably longer than the body, and which have a peculiar 
distribution of the cross-veins, a character by which it can best 
be identified; but the position of the posterior cross-vein varies a 
