408 A Monograph of Culicidae. 



Wings. — First fork-cell about four times as long as the stem ; 

 the second about one and a half longer. Lateral scales long and 

 narrow, grey ; those in the middle wider, dusky bronze. The 

 cross-veins a and b (supernumerary and mid) unite in an obtuse 

 angle, open towards the base ; the posterior cross-vein (c) is from 

 3 to 4 times its own length nearer the base of the wing. 



Note. — Description of a female. Reared from a larva, 

 caught in the bromelias (wild) at Itaprica (Bahia State) 

 (Lute)." 



Ccjlex niveitarsis. Coquillett (1904). 



Culex nivitarsis. Coquillett (Blanchard). 



Proc. Ent. Soc. Wash. VI., p. 168 (1904), Coquillett; Mosq. N. Jersey, 

 pp. 227-231 (1905), Smith ; Les Moust., p. 629 (1905), Blanchard. 



Small (4 ' 5 mm.) brown, first two fore and mid tarsals with 

 pale bands involving both sides of joints ; hind tarsi wholly 

 white, except a faint dusky band in centre of three mid segments. 

 Thorax brown. Abdomen with narrow white basal bands 

 in J , broader in $ . 



$ . " Black, thorax and scutellum brown, first antennal joint, lial teres, 

 coxae, femora and tibiae yellow, the hind tarsi white and with a faint 

 median brownish band on the three middle joints. Scales of palpi brown, 

 those of the basal portion yellow, on the apex white ; scales of the upper 

 part of occiput golden yellow, on the sides and lower part chiefly white, 

 those on the mesonotum golden yellow, on the abdomen purple, those on 

 the extreme bases and front angles of the segments yellowish, including 

 all on the seventh and following segments, those on the venter white. 

 Scales of legs brown and whitish, not forming bands or spots ; those on 

 the first two pairs of tarsi brown and with white ones on the narrow 

 bases and broad apices of the first two segments as well as on the narrow 

 bases of the middle tarsi ; scales of hind tarsi almost wholly white ; all 

 tarsal claws toothed. Wings greyish hyaline, the scales brown, lateral 

 scales on the veins narrow and almost linear, petiole of the first sub- 

 marginal cell about two-thirds as long as this cell ; hind cross- vein about 

 its own length (? distant from the mid. — F. V. T.). 



d . Palpi slender, black, a broad band at middle of first joint, and 

 bases of the following segments white, proboscis reaching almost to apex 

 of penultimate joint of palpi. Front and middle tarsi with one of their 

 claws bidentate and the other unidentate, hind tarsal claws also uni- 

 dentate; some of the brown bands on the hind tarsi quite distinct, 

 especially the one on the third segment. Petiole of first sub-marginal 

 eel] almost as long as the cell. 



