730 MOSQUITOES OF NOETH AMEEICA 



pinned specimens; genitalia dark brown. Legs cream coloured, the anterior part 

 of all femora and also anterior part of tibia of fore leg brownish; the apical two 

 or three joints of fore and mid tarsi also brownish; claws all uniserrated; wings 

 hyaline with slender brown scales and broad whitish ones, petiole of first sub- 

 marginal cell about half the length of this cell. Length 4.5-5 mm. 



Types, 2 females in the New Jersey Experiment Station collection. This species 

 is at once recognizable by its silvery lustre and cream-coloured legs. 



A single specimen of this species hatched May 5th out of a lot of larvse and pupse 

 sent in by Mr. Brehme, who collected them as Culex Canadensis from the Orange 

 Mountains. The remaining larvae were immediately put into alcohol and the pupae 

 left to develop; but all Canadensis emerged from the pupse and no larvae distinguish- 

 able from that species could be found. Another collection in the same locality was 

 made several days after the first and from this lot another female hatched May 26th. 

 Of the numerous other larvas with which they were associated all were Canadensis 

 and one Corethra cinctipes. We had evidently gotten hold of the tail end of the 

 brood; no larvae remaining. 

 Okiginal DESCEiPTioiir or Cttlex paixidocephai.a: 



A light coloured medium sized species, with creamy coloured unhanded legs, 

 brownish unhanded beak and silvery-grey unhanded abdomen. Wings unspotted. 

 Thorax pale brown, marked with darker scales on the sides of a narrow median 

 groove, and enclosed in a semicircular lateral line on the posterior half. 



United States. 



I have the above description, but cannot trace the reference. — P. V. T. 



Desceiption of Female, Male, Larva, and Pupa or Aisdes fuscus : 



Female. — Proboscis rather stout, subcylindrical, uniform, the labellae conically 

 tapered; vestiture bronzy-brown; setse on the labellse minute, outstanding. 

 Palpi short, about one-sixth as long as the proboscis, black; setae moderate, 

 bristly. Antennae with the joints subequal, rugose, pilose, black, second joint 

 slightly thickened and paler ; tori subspherical, with a cup-shaped apical exca- 

 vation, luteous, darker and with a patch of small black scales on inner side ; hairs 

 of whorls sparse, moderate, black. Clypeus rounded triangular, prominent, 

 black, nude. Eyes black. Occiput pale golden brown scaled on the vertex, the 

 scales partly narrow, a large area of flat black scales on each side, cheeks clothed 

 with broad shining yellowish scales, many erect, short, pale forked scales on the 

 nape; bristles along margins of eyes black, those projecting between the eyes 

 pale. 



Prothoracic lobes elliptical, remote dorsally, brown, clothed with narrow yel- 

 lowish scales and dark bristles. Mesonotimi reddish brown, clothed with narrow 

 curved scales, uniformly golden brown, paler about antescutellar space and over 

 roots of wings. Scutellum trilobate, dark gray, clothed with narrow curved, pale 

 yellow scales, each lobe with a group of brown bristles. Postnotum elliptical, 

 prominent, yellowish brown, shining, nude. Pleurse pale brown, coxse luteous, 

 clothed with patches of elliptical, flat white scales and rows of pale bristles; 

 epimera of prothorax clothed with golden brown scales like those on mesonotum. 



Abdomen subcylindrical tapering posteriorly; dorsal vestiture black with 

 slight bronzy-brown luster, the segments with narrow whitish basal bands which 

 widen at the sides and join a continuous yellowish white lateral stripe ; first seg- 

 ment with a large patch of black scales in the middle, some light ones at base 

 and sides, and with numerous fine, pale hairs; venter entirely yellowish-white 

 scaled. Cerci black. 



Wings moderate, hyaline; petiole of second marginal cell shorter than its 

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

 distant more than its own length from anterior cross- vein; scales brown, the 

 outstanding ones broadly linear. Halteres whitish, with dark knobs. 



Legs moderately long and slender ; femora clothed with yellowish-white scales 

 at base and below, with bronzy-bi'own ones above; tibiae bronzy-brown scaled 

 above, paler below; tarsi uniformly bronzy-brown scaled. Claw formula, 

 1.1-1.1-1.1. 



Length : Body about 4 mm. ; wing 3.5 mm. 



