NO. 3567 SUBGENUS CULEX—BRAM 57 
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 long, triple, and barbed; preantennal head hair 7 large, 
multiple. Mentum with about 20 teeth; the apical tooth broader 
and longer than the lateral teeth, the subbasal lateral teeth longer 
than the other lateral teeth. Thorax spiculate. Comb with nu- 
merous scales in a patch; each scale long, broadly expanded apically 
and fringed with subequal spinules. Siphonal index 5.0 to 6.0; with 
three pairs of siphonal tufts. Pecten with numerous teeth on the 
basal third to two-fifths of the siphon; each tooth with two to six 
barbs on one side. Anal sigment completely ringed by the saddle. 
MATERIAL EXAMINED.—T'en adult males and associated terminalia 
from Brazil, five from Colombia, three from Costa Rica, one from 
Guatemala, two from Mexico, five from Panama, one from Peru, 
one from Surinam, six from Venezuela, and 11 from the West Indies. 
The lectotype male terminalia from Trinidad was also examined. 
DistRinuTION.—This species seems to have a more northern dis- 
tribution than its close relative, Culex bidens. The range extends 
from Texas southward through the countries listed above and to at 
least the state of Sdo Paulo, Brazil (the type locality of C. forattinii). 
As indicated for C. bidens, a re-evaluation of the distributional patterns 
of this species must be made due to confusion in the literature of the 
names declarator, virgulius, bidens, interfor, and forattinit. 
Culex (Culex) delys Howard, Dyar, and Knab, 1915 
Culex (Culex) delys Howard, Dyar, and Knab, 1915, p. 317. 
SysTeMATIcs.—Culex delys was placed in synonymy with C. mollis 
by Dyar (1921b). Subsequently Lane (1951) revalidated the species. 
Neither author presented evidence to support his decision. The 
validity of this species seems questionable; however, a final decision 
must await further study of other adult forms in the subgenus. 
SALIENT CHARACTERS.—Adult female: See table 1. 
Male terminalia: Unknown. 
Larva: Unknown. 
MATERIAL EXAMINED.—The holotype adult female. 
DistrisuTion.—That of the type locality, Tabernilla, Panama 
Canal Zone. This species is known only from the holotype adult 
female. 
Culex (Culex) diplophyllum Dyar, 1929 
Ficures 14c, d 
Culex (Culex) diplophyllum Dyar, 1929, p. 509. 
Systematics.—The most characteristic feature of Culex diplo- 
phyllum is the presence of two distinct leaves on the apical lobe of 
