186 



American Midland Naturalist Monograph No. 3 



pronotum and pleura yellow; a dark spot present beneath anterior spiracle. 

 Abdomen: Tergites yellow scaled basally and laterally, dark scaled apically; 

 the last two segments usually entirely yellow scaled. Venter yellow scaled. 

 Legs: Femur, tibia and first tarsal segment of each leg yellow to orange-yellow, 

 tipped with dark scales; remaining tarsal segments primarily dark scaled, 

 blended with yellow, the amount of yellow being variable. Wing: Scales yel» 

 low and rather broad on costa, subcosta and vein 1, narrow and darker on 

 remaining veins. 



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

 98). Lobes of ninth tergite (IXT-L) about as long as broad, rounded or trun- 

 cate apically, separated by a little less than the width of one lobe, each bearing 

 several spines. Tenth sternite (X-S) prominent, heavily sclerotized beyond 

 middle. Phallosome (Ph) stout, conical, narrowly rounded or bluntly pointed 

 apically, open ventrally, closed dorsally, lightly sclerotized. Claspette stem (CI- 

 S) slender, cylindrical, moderately pilose, extending to or slightly beyond the 

 most posterior portion of the basal lobe; claspette filament (Cl-F) nearly as 

 long as stem, broad, blade-like, gradually tapering to a recurved tip. Basistyle 



Fig. 98. Aedes fulvus pallens Ross. A, Male terminalia. 

 B, Filament of claspette (flattened). 



