NO. 3557 SUBGENUS CULEX—BRAM 51 
present on the distal tubercle. A patch of setae is present at the apex 
of the basistyle, but the setae are short. 
SALIENT CHARACTERS.—Adult female: See table 1. 
Male terminalia: Basistyle conical, slightly longer than twice the 
basal width; clothed with fine setae in addition to the normal, long 
setal pattern; at the apex is a small patch of short setae. Apical lobe 
of the basistyle prominent, divided into a large proximal lobe and a 
small distal tubercle; also clothed with fine setae. Appendicles of the 
apical lobe as follows: rods absent; a group of approximately 10 
subequal, gently curved setae evenly distributed on the proximal 
lobe; four or five subequal, gently curved setae on the distal tubercle; 
leaf absent. Dististyle normal. Tenth sternite crowned with a 
sparse tuft of short, pomted spines; basal arm rather long, gently 
curved; three to five cercal setae present. External process gradually 
expanding distally to the midpoint, then tapering to a point; slightly 
exceeding the ventral cornu in length. Ventral cornu long and slender, 
distinctly separated from the teeth of the median process, bent so as to 
be directed laterally; at the crest of the bend the margin seems to be 
somewhat rugulose. Median process with six to 10 strong, sharply 
pointed, subequal teeth. Basal process short, straight, and bluntly 
rounded. 
Larva: Similar to Culex coronator. Detailed descriptions of the 
immature stages are not available, and individual rearings of speci- 
mens belonging to this species were not examined. 
MATERIAL EXAMINED.—Twenty male terminalia from areas indi- 
cated in table 3. 
Distrisution.—Probable distribution of this species is plotted 
on figure 1le. 
Culex (Culex) usquatissimus Dyar, 1922 
Figure 12e 
Culex (Culex) usquatissmus Dyar, 1922a, p. 19. 
SysteMatics.—Appendicles on the apical lobe of the basistyle 
distinguish this species from other members of the complex. The 
apical lobe is divided into a large, proximal lobe and a small distal 
tubercle. On the proximal lobe there are three subequal, strong rods, 
which are gently curved at the apex; on the distal tubercle there are 
three to five subequal, gently curved setae. A small patch of setae 
is present at the apex of the basistyle; these setae are very long, 
reaching to at least the midpoint of the dististyle. The mesosome 
cannot be distinguished from other members of the complex, except 
Culex covagarciat. 
