86 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
broader than basal rod and terminating in a prominent hook; apical 
rod longer than median rod, also prominently hooked terminally; 
leaf moderate in size, obovate; one long, gently curved accessory seta 
present. Dististyle normal. Tenth sternite crowned with a dense 
tuft of short, pointed spines apically and approximately eight spatu- 
late, scalelike spines on the lateral outer margins; basal arm long and 
prominently curved; two cercal setae present. External process 
somewhat curved and bluntly rounded; not reaching the ventral cornu 
inlength. Ventral cornu distinct from the teeth of the median process, 
truncate and serrate. Median process with three to four strong, 
pointed teeth. Basal process absent. 
Larva: Antennal tuft located in a constriction near the outer third. 
Postclypeal head hair 4 short, single; upper and lower frontal head 
hairs 5 and 6 triple, barbed, extending beyond the preclypeus; pre- 
antennal head hair 7 long, multiple. Mentum with about 23 blunt 
teeth; the apical tooth longer and broader than the lateral teeth. 
Thorax densely clothed with fine spicules. Comb with many scales 
in a patch; each scale rounded apically and fringed with subequal 
spinules. Siphonal index 6.0 to 7.0; with four pairs of double or triple 
siphonal tufts. Pecten with nine to 15 teeth on the basal fourth of 
the siphon; each tooth with two to six coarse barbs on one side. Anal 
segment completely ringed by the saddle. 
MATERIAL EXAMINED.—There were 142 adult males and associ- 
ated terminalia from the United States, Bahama Islands, Brazil, 
British Guiana, Colombia, Cuba, Ecuador, Guatemala, Haiti, Hon- 
duras, Mexico, Panama, Puerto Rico, Surinam, Venezuela, and the 
Dominican Republic. 
DistRIBUTION.—Reported from the Antilles, southern United 
States, Mexico, Central America, Trinidad, Ecuador, Colombia, 
Venezuela, Guianas, and Brazil. 
Culex (Culex) oswaldoi Forattini, 1965 
FIGurEs 26c, d 
Culex (Culex) oswaldoi Bram [sic].—Forattini, 1965, p. 167. 
SysTEMATICS.—This species is a member of the group lacking a 
leaf on the apical lobe of the basistyle. It is distinct from the other 
members, however, in the number and conformation of the appendicles 
on the apical lobe of the basistyle and in the structures of the 
mesosome. 
SALIENT CHARACTERS.—Adult female: Unknown. 
Male terminalia: Basistyle conical, slightly longer than twice the 
basal width; clothed with fine spicules in addition to the normal, 
long setal pattern. Apical lobe of the basistyle somewhat flattened, 
