428 NEW YORK STATE MUSEUM 
ning from base of wing toward the head. Abdomen brownish 
above, paler below; knob of halteres brown, stem pale. Feet 
brownish paler at the base; a snow-white dot on the upper side 
of tip of femora and of tibiae; when looked at very obliquely, 
these white dots appear slightly pale bluish, and the tibiae and 
tarsi likewise show a faint bluish reflection. Wings clothed 
with brown scales, but showing in an oblique light numerous 
blue reflections, especially a stripe near the basis between the 
third and fourth longitudinal veins. Obs.—In female specimen 
the scales are rubbed on the feet; therefore appear pale tawny; 
still, white dots are distinctly visible. Length 3mm. Wing 
3mm. Habitat United States, Washington D. C., Brooklyn 
Ni Y¥?? 
To the above I may add that in well preserved specimens the 
abdomen has a very narrow, pale posterior margin, and that the 
female also possesses the white spot at the tip of the femora, 
rather faint, and at tip of tibia very distinct. The tarsal claws 
of both male and female are simple, the middle tarsi of the male 
with but a single large strongly curved claw [fig.15]. The claws 
of the hind legs small and but slightly curved. Wing venation as 
in the figures [fig.13 female, fig14 male]. The hypopygium of 
the male, moderate sized with the jointed appendage slender 
and curved up at the tip [fig.12]; its ventral tooth simple. 
[P1.46, fig.8-15]. The larva and pupa, and the life history of 
this species are described by Dr Dyar.t. According to the figures 
and description given by Dr Dyar, this species differs from the 
known members of the genus Culex in the following particulars: 
“Antennae moderate, divergent [fig.10]. The hairs of the 
thorax and abdomen [fig.8] black, the thoracic ones equal, 
long; those of the first and second abdominal segment also long; 
but the rest very short and inconspicuous, stellate. The lateral 
comb [fig.9] of the eighth abdominal segment is a large plate 
with a row of stout teeth on the posterior edge ... air tube 
rather short, not longer than two segments, widened at the tip 
by four distinct, flattened teeth, as long as the width of the tube; 
last segment moderate, with the usual four anal fingers (blood 
gills)} Pupa essentially as in Culex. .. Segments dorsally 
tN, ¥.. Hot, Soc. Journ . 90 O17. 
