636 MOSQUITOES OF NORTH AMERICA 



Wings clear, speckled with black and white scales, the costa being mostly black, 

 and the sixth long vein white, first submarginal a little longer and more narrow than 

 the second posterior cell, the petiole in each case about half as long as the cell; mid 

 cross-vein twice as long as the " supernumerary," and equal to the posterior cross- 

 vein, which is about its own length distant; halteres, light stem and dark knobs. 



The leg banding involves both sides of most of the joints, and in this greatly, 

 resembles O. Curriei, the thoracic marking suggests G. lativitatta, but the abdominal 

 marking is clear, in some cases being only clean-cut lines, in others a little ragged. 

 The types do not however, suggest either species more than to indicate their close 

 relationship, having a peculiarly tidy appearance which the others lack. 



Length, 7.5 mm. 



Habitat, Fort Lincoln, N. D. Taken June, July, August. 



Desceiption of Female, Maxe, Labva, and Egg of Aedes curriei: 



Female. Proboscis moderate, subcylindrical, uniform, the labellse conically 

 tapered ; vestiture of black scales mixed with a few white ones centrally ; setse 

 minute, curved, black, those on the labellse more outstanding. Palpi short and 

 stout, about one-fourth as long as the proboscis ; vestiture black with a few white 

 scales intermixed ; setas rather long and black. Antennae moderate, the joints 

 subequal, rugose, pilose, blackish, the second joint a little longer, with a yellow 

 base ; tori subspherical, with a cup-shaped apical excavation, largely shaded with 

 blackish, inner half covered with small flat sordid-white scales. Clypeus rounded 

 triangular, prominent, black, nude. Eyes black. Occiput rather broad, black, 

 densely covered with narrow curved coarse scales, dull white on the vertex, a 

 large patch of flat brown ones laterally and continued forward along the mar- 

 gins of the eyes, many dull white, short, broad, erect forked scales on the nape. 



Prothoracic lobes narrowly elliptical, remote dorsally, clothed with narrow 

 coarse dark-brown scales at tip, whitish ones below, and short brown bristles. 

 Mesonotum brown, densely clothed with coarse, narrow curved, dull white scales, 

 a bright brown and usually narrow median stripe, a narrow stripe on either side 

 anteriorly along the lateral margins, a short narrow stripe posteriorly on either 

 side of antescutellar space ; bristles dark brown. Scutellmn trilobate, luteous, 

 clothed with coarse dull white scales, each lobe with a group of about twelve very 

 pale bristles. Postnotum elliptical, prominent, nude, brownish luteous, with a 

 slight pruinosity. Pleurae and coxae brownish, clothed with flat white scales and 

 pale bristles. 



Abdomen subcylindrical, flattened, posterior segments tapered; vestiture of 

 flat sordid-white scales with two large patches of black ones on each segment, the 

 patches becoming smaller posteriorly, absent on first and last segment; venter 

 clothed with sordid-white scales, a row of small median black spots basally on f 

 the segments and sublateral ones distally on the segments; cerci black; setse 

 mostly pale. 



Wings rather broad, hyaline ; petiole of second marginal cell somewhat shorter w 

 than its cell, that of second posterior cell a little longer than its cell ; basal cross- 

 vein distant about its own length from anterior cross-vein; vestiture of black 

 and white scales, on the costal, subcostal, and first veins and on the basal half 

 of the fifth vein the white scales largely predominate, on base of first and whole 

 of second veins the scales are almost entirely white, while on the third vein, 

 the forks of the fourth vein, and the ends of the forks of the fifth vein there are 

 many black scales ; outstanding scales narrowly lanceolate, mostly white ; fringe 

 blackish with a white reflection which gives a mottled appearance. Halteres 

 yellowish, with a white-scaled knob. 



Legs rather slender; femora clothed with whitish scales, mixed with a few 

 black ones dorsally and predominating at apex, extreme tip narrowly white; 

 tibiae with whitish scales and black ones intermixed which tend to form lines 

 dorsally and ventrally and a small annulus before the tip on hind pair; hind 

 tarsi black-scaled, with a white ring at base and apex of each joint, first joint also 



