6 A Monograph of Culicidae. 
pleurae pale brown with three patches of white scales and pale 
hairs. 
Abdomen banded, covered with deep brownish-black scales, 
the base of each segment with a semicircular patch of white 
scales; each segment bordered posteriorly with pale hairs; the 
first segment is very peculiar, and I am not sure if it is not due 
to deformity ; its lateral edges are pointed, the whole segment 
being very narrow, dark in colour, bare except for two central 
patches of dusky purple scales, and clothed with numerous pale 
hairs, venter chiefly covered with creamy-white scales. 
Legs very pale at the base; fore femora dark brown above, 
grey below, with a faint yellow apical spot, tibiae brown, with a 
small apical white spot, tarsi brown, the last joint with very pale 
reflections : mid legs the same, only the tibial spot seems to be 
Fig. 153. 
Culex cingulatus, Wied. 
a, Head ; c, two abdominal segments ; and 
b, leg of a ?. 
absent; hind legs with the tibiae a little swollen and orange- 
yellow at the apex, a narrow pale band (involving both sides of 
the joints) around the junction of the metatarsus and first tarsal 
and the junction of all the tarsi, apex of last tarsal almost white; 
ungues small, equal, untoothed. 
Wings iridescent, with the veins covered with long as well 
as short brown scales • the first sub-marginal cell much longer 
than the second posterior cell, about the same width, its stem 
very short, not more than one-fourth the length of the cell, its 
base much nearer the base of the wing than that of the posterior 
cell ‘ posterior cross-vein about the same length as the mid cross¬ 
vein, and distant from the latter about its own length. 
Halteres with grey stem and pale brown and white knob. 
Length .—4 mm. 
Habitat .—Rio de Janeiro (Lutz 4. 7. 1899) ; Lower Amazons 
(Austen). 
