280 
A Monograph of Culicidae. 
reddish-brown, with purplish reflections, with four distinct chaetae 
and traces of two others, forming two tufts of bristles close 
together on the apical half of the metanotum; pleurae bright 
chestnut-brown, with a dense mass of flat, shiny, creamy-white to 
pale golden scales running from the head to just below the root 
of wing; the scales are closely applied, and overlap one another 
regularly, like those on a lepidopterous wing, a few similar scales 
scattered about over the legs. 
Abdomen covered with dusky purplish-brown scales, with here 
and there bright brown patches where the scales have been 
denuded ; laterally there are apical patches of shiny creamy-white 
to golden scales, except on the first and last segments, although 
those on the second and third often do not show; these lateral 
patches are continuations of the ventral scales upwards, the 
ventral surface being mostly covered with such scales, but each 
segment has a triangular basal patch of dark scales on each side; 
posterior border-hairs small and fine, reddish-brown; the first 
segment is ochraceous, with dark median scales and pallid 
hairs. 
Legs clothed with deep brown scales, with bronzy-ochraceous 
reflections; bases and under-sides of the femora with bright 
yellowish-brown scales; a yellowish spot at the tibio-metatarsal 
joint; the last fore tarsal of a somewhat yellowish tint; mid and 
hind legs the same, but with bright metallic ochraceous reflections ; 
steel blue reflections also seen in some lights; ungues equal and 
simple. 
Wings with veins covered with broadish brown scales, except 
on the basal half of the fourth long vein, the lower branch of 
the fifth and the sixth, which have long scales as well; the scales 
are particularly thick, and rather darker towards the tips of the 
veins; costa, first longitudinal, and base of the fifth long vein 
with darker purple scales; first sub-marginal cell longer and a 
little narrower than the second posterior cell, its stem less than 
half the length of the cell; mid cross-vein considerably longer 
than the supernumerary cross-vein; posterior cross-vein only a 
little way distant from the mid cross-vein, sloping towards the 
apex of the wing. 
Halteres ochraceous, with fuscous knob. 
Length. —6 mm. 
Habitat. —Rio de Janeiro (Moreira, 9. 12. 1899). 
Time of capture. —J uly. 
Observations. —A series of this species sent by Senhor Moreira 
