Carpenter et al.: Mosquitoes of Southern U. S. 225 



faces and usually have a few white scales at tips. Hind legs black scaled except 

 for femora, which have the basal one-half to two-thirds whitish scaled on all 

 aspects and the tips conspicuously white scaled. Wing: Scales narrow, dark. 



ADULT MALE. — Coloration similar to that of female, terminalia (Fig. 

 123A). Lobes of ninth stermte (IXT-L) distinct but not as long as broad, 

 moderatelv sclerotized, well separated, each bearing a row of stout setae. Tenth 

 stermte (X-S) prominent, sclerotized apically. Phallosome (Ph) a stout 

 cylinder, truncate apically, open ventrally, closed dorsally, lightly sclerotized. 

 Claspette stem (Cl-S) slender, cylindrical, curved, pilose, reaching ba.sal third 

 of basistyle; claspette filament (Cl-F) ligulate, slightly longer and narrower 

 than stem, gradually tapering to a pointed, somewhat recurved tip, and extend- 

 ing a little beyond middle of basistyle. Basistyle (Bs) nearly three times as 

 long as broad, rounded apically, clothed with large scales and moderately long 

 setae; basal lobe (B-L) ill-defined, represented by a dense patch of setae near 

 base of basistyle; apical lobe also ill-defined, but probably represented by a 

 small dense patch of long setae on inner face of basistyle at apical third. Disti- 

 style (Ds) less than half as long as basistyle, broader basally and medially; 

 termnial claw (Ds-C) slender, curved, about half as long as dististyle. 



larva. (Fig. 124). — Head slightly broader than long. Antemia about half 

 as long as head, slightly curved, smooth; antennal tuft represented by a single 

 hair inserted near middle of shaft, nearly reaching tip. Head hairs: Preantennal 

 (A) short, multiple; lower (B) 2 to 4-branched; upper (C) long, single; post- 

 clypeal (d) well-developed, multiple; sutural (e) and trans-sutural (f) single 

 or double; supraorbital single. Lateral abdominal hairs on segments I and II 

 triple, sometimes double; double on III to VI. Comb of eighth segment of 

 about 9 to 15 scales in a single or partially double row; individual scale long, 

 gradually tapered, evenly fringed with short spinules. Siphon two and one-half 

 to three times as long as wide; pecten of numerous evenly spaced teeth extend- 

 ing to near middle of siphon; subventral tuft represented by a single, sometimes 

 double, barbed hair inserted beyond pecten. Anal segment about as wide as 

 long, with dorsal plate extending a little more than half-way down the sides; 

 lateral hair large, multiple, inserted near ventro-lateral margin; dorsal brush 

 consisting of a long lower caudal hair and a shorter multiple upper caudal tuft 

 on either side; ventral brush well developed, consisting of long rather sparse 

 tufts and with two or three smaller tufts preceding the barred area; gills 4, 

 small, blunt, shorter than the anal segment, the dorsal pair somewhat longer 

 than the ventral pair. 



distribution. — Southern Canada; eastern United States west to Mon- 

 tana. Southern States: Alabama (170); Arkansas (30); Florida and Georgia 

 (52); Kentucky (140); Louisiana, Mississippi, Missouri, North Carolina, 

 South Carolina, Tennessee and Virginia (52). Other States: Colorado (134); 

 Connecticut (52); Delaware (106); District of Columbia (52); Illinois (42); 

 Indiana (76); Iowa and Kansas (52); Maine (90); Maryland (19); Mas.^a- 

 chusetts (52); Michigan (88); Minnesota (131); Montana (52); Nebraska 

 (178); New Hampshire (52); New Jersey (77); New York (52); Oklahoma 

 (159); Rhode Island (99) ; Texas (108); Wisconsin (48). 



