104 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
MATERIAL EXAMINED.—Three adult males and associated terminalia 
from Colombia and Venezuela. 
Distrisution.—Reported from Brazil. The author has seen speci- 
mens in the U.S. National Museum collection from Lagunillas, 
Venezuela, and from Colombia. 
Culex (Culex) stenolepis Dyar and Knab, 1908 
FIGURES 3le, d 
Culex (Culex) stenolepis Dyar and Knab, 1908, p. 60. 
Systamatics.—Culez stenolepis demonstrates relationship to C. 
interrogator, O. peus, and C. thriambus. It may be distinguished from 
the first two species by the number and arrangement of the appendicles 
on the apical lobe of the basistyle. It is distinct from C. thriambus in 
the conformation of the external process. 
SALIENT CHARACTERS.—Adult female: See table 1. 
Male terminalia: Basistyle conical, about twice as long as the basal 
width; clothed with fine setae in addition to the normal, long setal 
pattern. Apical lobe of the basistyle somewhat flattened, undivided, 
and also clothed with fine setae. Appendicles of the apical lobe as 
follows: basal rod strong, straight, and pointed; median rod broader 
and longer than the basal rod and terminating in a gentle hook; 
apical rod longer than, but not as broad as the median rod, also 
terminating in a gentle hook; leaf moderate in size, obovate, with 
several prominent, longitudinal, centripetal striations; one long, 
pointed, gently curved accessory seta present. Dististyle normal. 
External process gradually tapering to a point, reaching to about 
the ventral cornu in length. Ventral cornu large, rounded, and 
rugulose. Median process with about seven sharply pointed, sub- 
equal teeth. Basal process short, straight, broad, and bluntly rounded. 
Larva: 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, and barbed. 
Mentum with about 23 teeth; the apical tooth broader and longer 
than the lateral teeth; the subbasal lateral teeth longer than the 
other lateral teeth. Body glabrous. Comb with many scales in a 
patch; each scale rounded apically and fringed with subequal spinules. 
Siphonal index about 3.5; five pairs of siphonal tufts inserted beyond 
the pecten, the basal four tufts double, the apical tuft multiple. 
Pecten with about 10 teeth, restricted to the basal third of the siphon; 
each tooth with several coarse barbs on one side. Anal segment 
completely ringed by the saddle, which is sparsely and finely spiculate distally. 
MATERIAL EXAMINED.—Seven adult males and associated ter- 
minalia from Mexico. The lectotype male terminalia was also studied. 
DistriBuTION.—Reported from Mexico and Costa Rica. 
