24 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
in which the basal arm of the mesosome is bent, pointed, and directed 
posteriorly. It is distinguished by the characteristic and diagnostic 
external process. 
SALIENT CHARACTERS.—Adult female: Unknown. 
Male terminalia: Basistyle conical, almost three times as long as the 
basal width; clothed with fine spicules in addition to the normal, long 
setal pattern. Apical lobe of the basistyle prominent, undivided, and 
also clothed with fine spicules. Appendicles of the apical lobe as 
follows: basal rod strong, straight and pointed; median and apical 
rods broader and longer than the basal rod, and terminating in a gentle 
hook; leaf moderate in size, obovate and possessing minute longitudinal 
striations; two accessory setae present, one very strong and promi- 
nently hooked at the apex, the other more narrow, slightly longer than 
the leaf, and gently curved. Dististyle normal. Tenth sternite 
crowned with a dense tuft of short, pointed spines; basal arm moderate 
in size, distinctly curved; three cercal setae present. External process 
expanded to an extremely broad distal third, with a blunt point 
directed posterolaterally; reaching to about the ventral cornu in 
length. Ventral cornu dentiform, considerably larger than the teeth 
of the median process. Median process with about seven to 10 
distinct, sharply pointed teeth. Basal process rather broad, pointed, 
and bent so as to be directed posteriorly. 
Larva: Unknown. 
Hoxuotypr.—An adult male and associated slide mounted terminalia 
with the following data: Colombia, Lot 152, 11—XII-40, Catera a 
Gachancipa, 2650 m, Bates; USNM RB62 205; USNM 67547. One 
paratype adult male and associated slide mounted terminalia with the 
following data: Colombia, Lot 156, 12—XII-40, Catera a Gachancipa, 
2650 m, Bates; USNM RB61 303; I take pleasure in naming this 
species in honor of Dr. Alan Stone. 
MATERIAL EXAMINED.—The holotype and paratype male terminalia. 
Distripution.—That of the type locality. 
Culex (Culex) apicinus Philippi, 1865 
FIGurE 4 
Culex (Culex) apicinus Philippi, 1865, p. 596. 
Culex (Culex) escomeli Brethes, 1920, p. 41. 
Phalangomyia debilis Dyar and Knab, 1914, p. 58. 
Culex (Culex) alticola Martini, 1931, p. 216. [New synonymy.] 
Sysrematics.—Lane (1951) synonymized Culex alticola with C. 
apicinus. Subsequently Stone (1956 (1957)) revalidated C. alticola 
after studying the lectotype male in the British Museum. Although 
Stone conceded that the two species are very similar, he pointed out 
differences in the leaf and the retrorse process on the apical lobe of the 
