AEDES VARIPALPUS 645 



the same length; supernumerary cross-vein slightly shorter and slightly interior of 

 the mid cross-vein, the posterior about the same length as mid and a little more 

 than its own length distant; halteres light. Length, 6 mm. 



Male is very like the female; palpi nearly as long as the proboscis, the ultimate 

 joint small and basally white banded, the penultimate also basally white, otherwise 

 the organ is brown, and is not plumose. Length, 4 mm. Habitat. Sierra Nevada 

 Mts., California. 



Described from several specimens sent from Three Rivers (?), Cal., by Dr. E. J. 

 Bingham, 1st Lt., Asst. Surg., U. S. A. The thoracic scaling at first suggests Culex 

 triseriatus, Say, but the abdominal marking and the banded legs carry it away from 

 that, and besides that the wing scales are distinctively Tocniorhynchus scales. 



Description of Female, Male, and Larva of Aedes vabipalpus : 



Female. Proboscis slender and rather long, cylindrical, uniform, the labellee 

 conically tapered ; vestiture black. Palpi short, less than one-fourth as long a.? 

 the proboscis, rather stout ; vestiture of black scales, apex broadly white scaled 

 and tips of the two basal joints white ringed ; setas moderate, black. Antennae 

 moderate, joints subequal, rugose, shining black, second joint with a small tuft 

 of white scales within at base ; tori subspherical, with a cup-shaped apical excava- 

 tion, with a large patch of flat white scales on inner side ; hairs of whorls mod- 

 erate, coarse, black. Clypeus bluntly conical, dull black, nude. Eyes black. 

 Occiput blackish, clothed with creamy white scales, in the middle rather broad 

 curved ones, broad, flat appressed ones at the sides, a large patch of dark brown 

 ones each side of middle, a smaller one well down the sides, many erect, forked, 

 pale scales on the nape ; bristles bordering eyes coarse, black. 



Prothoracic lobes, moderate, remote, black, clothed with broad, flat, white 

 scales and black bristles. Mesonotum black, clothed with dark bronzy-brown 

 and shining yellowish-white, rather dense, coarse, curved scales, forming a 

 variegated pattern ; the pale scales form a broad, median pale golden stripe on 

 the anterior half which spreads in front to the humeri ; antescutellar bare space 

 surroimded by silvery scales and connected with the median stripe by a narrow 

 line of pale scales ; posteriorly a narrow silvery line on each side of antescutellar 

 space and nearly joining the median stripe; lateral margins irregularly pale 

 scaled and near the middle sending an oblique branch to the median stripe ; two 

 narrow bare lines anteriorly ; bristles rather long, coarse and black. Scutellum 

 trilobate, blackish, clothed with broad, flat, shining white scales, each lobe with 

 about eight black bristles. Postnotum elliptical, prominent, dull blackish- 

 brown, nude. Pleurae brown, coxae pale, with broad flat white scales and pale 

 bristles. 



Abdomen subcylindrical, flattened, tapering posteriorly, the cerci exserted; 

 dorsal vestiture of black scales, each segment with a large basal, median, roughly 

 triangular patch of white scales and larger lateral patches which are narrowly 

 connected basally with the median patch, the last three or four segments bear 

 also a few apical white scales ; first segment clothed with white scales and with 

 many pale hairs ; venter clothed with white scales with a few black ones inter- 

 mixed, a series of subapical broad black bands, broadly interrupted medianly on 

 all but the sixth and seventh segments ; cerci black. 



Wings moderate hyaline ; petiole of second marginal cell a little shorter than 

 its cell, that of second posterior about the same length as its cell ; basal cross- 

 vein about its own length distant from anterior cross-vein ; scales of veins dense, 

 long, all brown, the outstanding ones on outer half of wings broadly linear, costa 

 with a blue reflection and a minute white spot at base; fringe dusky with a 

 whitish luster. Halteres entirely whitish. 



Legs rather long and slender ; femora clothed with black and white scales, the 

 white ones predominating basally, the black ones apically, tip broadly white; 

 tibiae clothed with bluish-black scales, a few white ones at extreme base and tip, 



