Genus Culex. 209 
dusky ; venter with dull creamy grey scales and traces of dusky 
apical bands. Legs entirely brown, except the coxae and bases 
of the femora, which are pallid grey ; ungues large, equal, all’ 
three pairs with a very large tooth. | 
Wings very slightly brown, with typical brown Culex scales ; 
the fork-cells short ; the first sub-marginal a little longer and 
narrower than the second posterior, its base about level with 
that of the latter, its stem about half the length of the cell ; 
stem of the second posterior about two-thirds the length of the 
cell; posterior cross-vein longer than the mid, about two-thirds 
of its own length distant from it ; halteres with pale ochraceous 
stem and slightly fuscous knob. 
Length.— 5 to 6 mm. 
Habitat.— British Guiana (Dr. bon). 
Observations.—Described from five ?’s. They were taken un 
the bush on the Pomeroon mission and on the Christianburg 
River. The species is very distinct and can at once be told by 
the bristly basal antennal joint, its general dusky-brown appear- 
ance and markedly serrated ungues. One specimen shows the 
brown proboscis very dark at the apex. It bears some resem- 
blance to Gilesia aculeata, Theobald. | 
Dr. Low tells me it is a common forest species widely 
distributed in virgin forest in British Guiana. 
CULEX CRINIFER. Ni. sp. 
Head covered with creamy-grey scales, with a black patch 
on each side ; thorax deep rich brown on each side, with a broad 
median creamy area with two more or less parallel brown lines ; 
abdomen black, unbanded, with small white lateral basal spots. 
Legs black, unbanded ; coxae, base and venter of femora white. 
Wings with typical brown Culex scales. 
@. Head densely clothed with narrow-curved pale creamy 
scales and ochraceous upright forked scales ; there is a patch of 
black scales and black upright forked ones on each side, forming 
a distinct black lateral spot ; palpi and proboscis black ; antennae 
brown, basal and second joints testaceous, the basal joint with 
black bristles on the inside and the second joint with a few 
black scales. 
Thorax black, with very thin narrow-curved bronzy-brown 
scales on each side, and a broad median creamy area with two 
very marked parallel dark lines covered with similar bronzy-brown. - 
VOL. III. P 
