42, PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Culex (Culex) lahillei Bachmann and Casal, 1962 
Fiaures 19c, d 
Culex (Culex) lahillei Bachmann and Casal, 1962, p. 267. 
SysTEMATICS.—This species possesses two leaves on the apical lobe 
of the basistyle and is, therefore, related to Culex diplophyllum and 
C. foliaceus; however, it does not exhibit an apical enlargement or 
annulations on the dististyle. Other characters of the mesosome are 
also distinctive. 
SALIENT CHARACTERS.—Adult female: See table 1. 
Male terminalia: Basistyle conical, slightly longer than twice the 
basal width. Apical lobe of the basistyle rather flattened, undivided. 
Appendicles of the apical lobe as follows: three subequal, strong, 
hooked rods; a prominently hooked accessory seta; two leaves, the 
proximal leaf broad and tapering to an apical point, the distal leaf 
narrow and bluntly rounded at the apex. Dististyle normal. Tenth 
sternite crowned with a dense tuft of short, pointed spines; basal arm 
moderate in length, gently curved. External process gradually 
tapering to a point, slightly exceeding the ventral cornu in length. 
Ventral cornu dentiform, close to the teeth of the median process. 
Median process with about nine distinct, sharply pointed teeth. 
Basal process short, straight, and bluntly rounded. 
Larva: Unknown. 
MATERIAL EXAMINED.—The holotype male terminalia (INM 5219). 
DisTRIBUTION.—That of the type locality, Achiras, Cordoba, 
Argentina. 
Culex (Culex) laticlasper Galindo and Blanton, 1954 
FiaurE 20a 
Culex (Culex) laticlasper Galindo and Blanton, 1954, p. 209. 
Systrematics.—Culex laticlasper is very similar to other species 
which possess a reduced mesosome. It is distinguished from C. 
brethesi and C. restuans by the appendicles of the apical lobe of the 
basistyle. It differs from C. acharistus by lacking the annulations of 
the dististyle. 
SALIENT CHARACTERS.—Adult female: See table 1. 
Male terminalia: Basistyle conical, not quite twice as long as 
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, and bluntly rounded; median rod 
more robust, and longer than the basal rod and with a prominent hook 
at the apex; apical rod longer than the median rod and hooked; 
leaf moderate in size, obovate; two accessory setae present, one long 
and gently curved, the other almost as strong as the apical rod and 
