250 
Monograph of Culicidae. 
Abdomen brownish above, pale below, with pale apical bands. 
Legs brownish, with white dots on the apices of the femora and 
tibiae (probably banded on the tarsi). 
Head with blue scales along the eyes, especially in the 
middle ; antennae blackish, basal joint tawny ; proboscis long. 
Thorax brownish-tawny, darker above, paler on the pleurae, 
with a metallic blue longitudinal median line reaching to the 
scutellum, a short blue line in front of the wings, and two blue 
spots on the pleurae (Fig. 272, III.). 
Abdomen brownish above, paler below, with apical pearly 
bands. 
Legs brownish, paler at the base, a snow-white spot on the 
upper side of the femora and tibiae, which appear pale bluish 
when looked at obliquely ; tibiae and tarsi also show a light 
bluish reflection. 
Wings with brown scales, which show blue reflections, 
especially a stripe near the base between the third and fourth 
longitudinal veins. 
Length. —2 • 5 mm. 
Habitat .—United States, at Washington, Brooklyn (O.- 
Sacken) ; Ithaca (Howard). 
Observations .—Described by Osten-Sacken, evidently from 
denuded specimens. Howard figures the species (“ Notes on 
Mosquitoes of the United States,” Bull. 25, N.S., Fig. 22), and 
shows the abdomen to be banded, but I cannot see any banding 
marked on the tarsi. The species is clearly distinct, and can be 
told by the median pale line running down to the scutellum, a 
character which evidently separates it from both U. pulcherrima 
and U. geometrica. 
4. UliANOTAENIA ANNULATA. 11. sp. 
Head creamy-white. Thorax chestnut-brown, pleurae grey, 
sharply separated from the brown dorsum. Abdomen black, 
with apical grey bands. Legs brown, fore and mid unbanded, 
hind with apical whitish bands, last two tarsi all whitish. 
9. Head covered with flat creamy-white scales all over, 
except just in the middle, where there is a dark line of scales; 
with a few upright ochraceous forked scales, which are rather 
darker towards the nape; a few large dark brown bristles 
projecting inwards in front of the head; antennae dark brown, 
