MOSQUITOS OR CULICIDAE OE' NEW YORK STATE 



365 



semitransparent, whitish. Basal segment of clasp straw yellow, 

 nearly cylindric, densely clothed with long, yellowish hairs, apical 

 portion slender, nearlj' straight, dark brown. Harpes near base 

 of claspers, chitinous, claw-shaped. Legs, pale straw yellow, 

 rather sparsely clothed with pale straw 

 yellow hairs. Anterior tarsi and ter- 

 minal segment of middle and posterior 

 tarsi distinctly shaded with gray, 

 ungues simple. Wings, pale straw 

 yellow, veins sparsely clothed with 

 similar colored scales ; posterior fringe 

 pearly white. Posterior cross vein less 

 than half its length from mid cross 

 vein. Petiole of first snbmarginal cell 

 about one third the length of cell, that 

 of posterior submarginal cell nearly 

 one half the length of cell. 



Described from a recently emerged, 

 well colored individual. 



The larva of this species is as trans- 

 parent and difficult to detect in the 

 water as the species met with at I'i^-ws Labrumof s. aibipes 

 Poughkeepsie, and i'ts transparency is likewise retained in 

 balsam. 



Pupa. Air tube with irregularly hexagonal cells, about four 

 times as long as wide, inner margin nearly straight, outer more or 

 less uniformly arcuate; tip light 

 brown, chitinous. Posterior three 

 fourths of the inner edge of the 

 inner paddle distinctly serrate, a 

 few teeth near the tip at almost 

 right angles to the margin. Pos- 

 terior appendages simple, sub- 

 conic, with inner margin slightly 

 irregular, serrate near the apical 

 fourth, and at their base an incon- 

 spicuous pair of subtriangular 

 lobes. 



Larva. Head, somewhat elongate, subconic. Basal segment of 

 antennae long, deeply notched at base and tipped with four nearly 

 equal, tapering processes and one about half as long. Just behind 

 the antennae are 10 long, light brownish filaments, five on each 

 side. These are the filaments of the third metamere of Meinert. 

 Leaflike appendages slender, rounded anteriorly to a narrow base 



i 



^J 



Fig. 106 Ventral hooks of S. aibipes 



