60 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
shape of the basal process; it differs from C. archegus in possessing a 
ventral cornu which is dentiform and very similar in size and shape 
to the teeth of the median process. 
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. Apical lobe of the basistyle prominent, undivided, and 
also clothed with fine setae. Appendicles of the apical lobe as follows: 
basal rod strong, straight, rounded terminally; median rod broader 
and longer than the basal rod, and terminating in a gentle hook; 
apical rod not as broad as the median rod, also terminating in a 
gentle hook; leaf moderate in size, obovate, exhibiting distinct longi- 
tudinal striations; two accessory setae present, one shorter than the 
leaf and prominently hooked terminally, the other very long, pointed, 
and gently curved. Dististyle normal. ‘Tenth sternite crowned with 
a dense tuft of short, pointed spines; basal arm very long, prominently 
recurved; three or four cercal setae present. External process gradu- 
ally tapering to a blunt point; considerably exceeding the ventral 
cornu in length. Ventral cornu dentiform, very similar in size and 
shape to the teeth of the median process. Median process with about 
six to eight sharply pointed, distinct teeth. Basal process sharply 
pointed distally, acutely bent so as to be directed posteriorly; reaching, 
at most, to the middle of the median process. 
Larva: After Lane (1953). Antennal tuft located in a constriction 
near the outer third; antennal shaft spiculate basally. Postclypeal 
head hair 4 short, single; frontal head hairs 5, 6, and 7 multiple, long, 
barbed. Body glabrous. Comb with numerous scales in a patch; 
each scale rounded apically and fringed with subequal spinules. 
Siphonal index 5.0 to 6.0; four triple siphonal tufts inserted on the 
siphon beyond the pecten. Pecten with about 13 teeth on the basal 
third of the siphon; each tooth with coarse barbs on one side. Anal 
segment completely ringed by the saddle, spiculate dorsally. 
MATERIAL EXAMINED.— Six male terminalia from Bolivia, Argentina, 
and Brazil. 
DistriBnuTion.— Reported from Argentina, Chile, Uruguay, Brazil, 
Bolivia, and Ecuador. 
Culex (Culex) duplicator Dyar and Knab, 1909 
Fiaures 15c, d 
Culex (Culex) duplicator Dyar and Knab, 1909a, p. 258. 
SysTEeMATIcS.— This species is similar to Culex salianensis but is 
distinctive in possessing a serrate ventral cornu and a broad external 
process. 
