NO. 3557 SUBGENUS CULEX—BRAM 27 
basistyle. Mattingly (personal communication, 1962) remounted the 
male terminalia of the lectotype and sent figures which indicated that 
the leaves on the apical lobe of the basistyle of both species are 
identical. Differences in the retrorse process may be attributed to 
variation within the species (as indicated by variation among other 
specimens examined). The mesosomes of both species are identical. 
It is for these reasons that C. alticola is here considered a synonym of 
C. apicinus. 
Culex apicinus is readily distinguished from other members of the 
subgenus by the distinctive appendicles of the apical lobe of the basi- 
style and the robust mesosome. The species appears to be somewhat 
related to C. articularis. 
SALIENT CHARACTERS.—Female: See table 1. 
Male terminalia: Basistyle rather short and stout; not quite twice 
as long as broad. In addition to normal long setal pattern, basistyle 
clothed with fine setae; a distinct circular patch of more than 25 long 
setae on the basal inner surface. Apical lobe of the basistyle divided 
into two sections; the basal section is characterized by a dense patch 
of strong, hooked setae, and two very stout, hooked rods (the distal 
rod being more robust, longer, and with a furcate tip); the distal 
section of the apical lobe possesses a thick, heavily sclerotized, bi- 
terminal projection and a large gradually tapering leaf (the basal 
portion of the leaf is serrate and the apical half tapers gradually to a 
point). The dististyle is rather stout and tubular; minute annula- 
tions ring the apical fourth and the apex is developed into a hooked 
structure; four to six setae are present on the dististyle in contrast 
to the normal complement of two. Tenth sternite crowned with a 
dense tuft of short, pointed spines; the basal arm very short, thick, and 
slightly curved: three to six cercal setae present, broadly distributed 
on the tenth sternite. External process robust, gradually tapering 
apically but not reaching the ventral cornu. Ventral cornu dentiform, 
indistinguishable from the teeth of the median process. Median 
process with three or four stout, pointed teeth. Basal process repre- 
sented only by a slight basal bulge of the median process. 
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 long, multiple. Mentum 
with about 13 robust teeth; the apical tooth larger than the lateral 
teeth. Body glabrous. Comb with numerous scales in a patch; 
each scale rounded apically and fringed with subequal spinules. 
Siphonal index about 3.0; six multiple siphonal tufts present, the 
apical tuft short and only double. Pecten with about eight teeth 
