Genus Culex. 199 
Abdomen almost black, the fourth, fifth and sixth segments 
with a creamy basal band, a few basal white scales on the third, 
remainder unbanded ; posterior border-bristles pale; venter 
almost entirely clothed with creamy scales. 
Legs deep brown, unbanded, the coxaeand venter 
of femora pale, ungues small, equal and simple. 
Wings with the costa, first long vein, third and 
lower part of the fifth black, other veins brown ; 
first sub-marginal cell longer and narrower than 
the second posterior, its base considerably nearer 
the base of the wing, its stem rather less than one- 
third the length of the cell; stem of the second 
posterior more than half the length of the cell; 
posterior cross-vein nearly twice its own length 
distant from the mid. Halteres testaceous, with 
slightly fuscous knob. : 
Length. 4 mm. Fig. 102. 
Habitat.—St. Michaels, Azores (Dr. Grabham). te. te 
Time of capture.—22.9.02. 
Observations—Very closely related to C. Azoriensis. The 
abdomen has three or four prominent pale basal bands, and there 
are no long curved scales in the middle of the occiput. The 
venation is much as in ©. Azoriensis. Described from a series 
taken by Dr. Grabham in the Azores. I am not certain of its 
male, so have not described it. It is very close to C. fatigans, 
but I feel sure distinct; the last few segments of apex never 
being banded. 

CULEX PEREXIGUUS.  n. sp. 
Thorax brown, covered with narrow-curved golden-brown 
scales in the middle, almost white ones at the sides and behind. 
Abdomen dark violet-brown, with narrow basal white bands. 
Legs dark brown, unbanded, bases and venter of femora paler ; 
knee spot indistinct. 
@. Head dark brown, with small narrow- poedl arora and 
golden scales above, almost white along the border of the eyes, 
and with small flat white lateral ones; a white tuft of hairs 
projecting between the eyes; antennae deep brown, basal joint 
testaceous brown, and also the base of the second joint, basal joint 
with small flat white scales; palpi black, with a few grey apical 
and basal seales ; proboscis black. ies. 
