Carpenter et al.: Mosquitoes of Southern U. S. 125 



ous anteriorly and on prescutellar space). Postspiracular bristles present. Abdo- 

 men: First tergite pale scaled; remaining tergites predominantly dark scaled, 

 with scattered yellow scales laterally, and yellow and white scales apically; 

 stemites with intermixed white, yellow, and brown scales. Eighth segment 

 blunt, largely retracted within the seventh; eighth tergite (Fig. 63D) with 

 numerous short stout spines arranged in a curved posterior row and an irregu- 

 lar anterior row; middle of posterior row with six to nine closely set spines 

 distinctly separated from the others in the row. Apical margin of seventh ter- 

 gite with a close-set row of short stout pointed spines (much smaller than those 

 of 8th tergite). Legs: Femora and tibiae of fore, middle and hind legs dark- 

 brown scaled, speckled with pale scales; inner surfaces of femora II and III 

 predominantly pale scaled. Tarsal segments 1 to 4 of fore and middle legs each 

 with a narrow basal white band; all segments of hind tarsus with white basal 

 bands. Wing: Scales mixed brown and white, very broad, intermingled with a 

 few narrower scales, particularly on veins 3, 4, and 5. 



adult male. — Coloration similar to that of female, terminalia (Fig. 

 63). Ninth tergite (IX-T) moderately sclerotized medially and laterally, 

 remainder hyaline, with lobes indistinct. Tenth sternite (X-S) prominent, 

 heavily sclerotized beyond middle; dorsal arm long, curved dorsally, weakly 

 sclerotized. Phallosome (Ph) large, lightly sclerotized, open ventrally, closed 

 dorsally near apex, expanded laterally and apically, broadly rounded at apex. 

 Claspette absent. Basistyle (Bs) about three times as long as basal width, sub- 

 cyiindrical (width at apical fourth about equal to that across middle), rounded 

 at apex; outstanding vestiture consisting of a group of strong setae at apex and 

 several very long strong setae near base. Basal lobe (B-L) very long and slen- 

 der, extending to apical fourth of basistyle; basal two-thirds of lobe narrow, 

 stem-like; apical third swollen, bearing a short stout bluntly pointed terminal 

 rod. Apical lobe absent. Dististyle (Ds) nearly half as long as basistyle, broad 

 and stout at base, evenly curved and narrowed to tip, not convoluted, with a 

 short stout pointed inner branch arising a little before middle; terminal claw 

 (Ds-C) short, stout. 



LARVA. (Fig. 64). — Head much broader than long. Antenna about twice as 

 long as head, whip-like, sparsely spined basally; antennal tuft multiple, barbed, 

 arising from a notch on basal third; a pair of long stout setae inserted at 

 middle of shaft and extending to tip of antenna; apex of antenna bearing a 

 short spine, seta, and membranous papilla. Head hairs: Preantennal (A) mul- 

 tiple, barbed; lower (B), upper (C), and postclypeal (d) short, multiple; 

 sutural (e) double or triple; trans-sutural (f) multiple; supraorbital double or 

 triple. Lateral spine of maxilla strongly serrated on one side. Prothoracic lateral 

 hairs (5 to 7) as follows: 5, double or triple; 6, single; and 7, single or double. 

 Upper lateral abdominal hairs single on segments I to VI. Comb of eighth 

 segment of about 7 or 8 scales in a single row, the scales becoming progressively 

 much smaller ventrally; scales on dorsal portion of row long, spine-like, each 

 with small lateral spinules near base. Subsiphonal hair long, 2 or 3 -branched, 

 barbed. Siphon short, sharply conical, strongly attenuated beyond middle; 

 attenuated portion of siphon heavily sclerotized, bearing saw-like projections 



