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



221 



margined with pale yellow scales; posterior pronotum clothed with narrow 

 dark scales dorsally, broader pale scales ventrally. Abdomen: First tergite dark 

 scaled; remaining tergites dark, all except the last with narrow basal white 

 bands. Venter white scaled basally, speckled or entirely covered with dark 

 scales apically. Legs: Hind leg dark scaled except for pale inner surface of 

 femur, prominent white knee spot, white tip of tibia, and rather broad basal 

 and apical rings on tarsal segments, the last segment entirely white. Fore and 

 middle legs similarly marked, but with tarsal rings narrower on segments 1 and 

 2, entirely lacking or greatly reduced on 3 and 4; segment 5 always entirely 

 dark. Wtng: Scales narrow, all dark except for a small white-scaled patch at 

 base of costa. 



f , KA>to«« 



Fig. 121. Acdes alropalpus (Coquillett). A, Hind tarsus. B, Male 

 terminalia. C, Scutum and scutellum. 



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

 121B). Lobes of ninth tergite inconspicuous, without spines or setae. Tenth 

 sternite (X-S) prominent, heavily sclerotized beyond middle. Phallosome (Ph) 

 nearly twice as long as broad, subcylindrical (slightly constricted at basal third 

 and somewhat bulbous at apical third), bluntly pointed at tip, open ventrally, 

 closed dorsally. Claspette stem (CI-S) slender, extending a little beyond basal 

 third of basistyle, pilose, slightly curved, and with a subapical seta arising from 



