428 NEW YORK STATE MUSEUM 



ning from base of winj? toward the head. Abdomen brownish 

 above, paler below; knob of halteres brown, stem pale. Feet 

 brow'nish paler at the base; a snow-white dot on the upper side 

 of tip of femora and of tibiae; when looked at very obliquely, 

 th<»se 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 

 N. 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 claw» 

 of both male and female are simple, the middle tarsi of the mal*-^ 

 with but a single large strongly curved claw [fig.15]. The claws 

 of the hind legs small and but slightly curved. Wing venation a» 

 in the figures [fig.l3 female, fig.l4 male]. The hypopygium of 

 the male, moderate sized with the jointed appendage slender 

 and curved up at the tip [fig.l2] ; 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.^ According to the figures 

 and description given by Br Dyar, this species difi'ers from the 

 known members of the genus Culex in the following particulars: 

 "Antennae moderate, divergent [fig.lO]. The hairs of the 

 thorax and abdomen [fig.S] 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 

 gillsj. Pupa essentially as in Culex. . . Segments dorsally 



IX. Y. Ent. Soc. Jour. 1901. 9:179. 



