NO. 3557 SUBGENUS CULEX—BRAM 21 
Culex scutatus was originally described as a member of the subgenus 
Culex from male specimens along with their associated larval and 
pupal skins; however, the technique of completely dissecting the male 
terminalia utilized by the above authors, made comparison with 
terminalia mounted in the natural closed position difficult. One 
male paratype was left unmounted, and during this study the male 
terminalia of this paratype was mounted in the closed position (USNM 
RB62 718) and forwarded to Dr. Forattini for comparison with the 
holotype male terminalia of C. abnormalis. A comparison of these 
type specimens revealed that C. abnormalis and C. scutatus are con- 
specific (Forattini, pers. comm., 1963). 
Characters of the male terminalia indicate some affinity with 
Culex tarsalis, but the arrangement and number of appendicles on the 
apical lobe of the basistyle are clearly distinctive. 
SALIENT CHARACTERS.—Adult female: See table 1. 
Male terminalia: Basistyle conical, about twice as long as wide; 
except for the basal fourth, clothed with fine setae in addition to 
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 pointed; median rod 
stout, prominently curved apically, and slightly longer than basal 
rod; apical rod more slender than median rod, prominently curved 
apically, and slightly longer than median rod; leaf obovate, moderate 
in size; accessory setae three in number, two of which are prominently 
curved, the third being long, straight, and slender. Dististyle normal. 
Tenth sternite crowned with a dense tuft of short, pointed spines 
apically and approximately five spatulate, scalelike spines on the 
lateral outer margins; basal arm moderate in length and slightly 
twisted dorsally; about three cercal setae present in a compact group. 
External process twisted at the apical third, exceeding the ventral 
cornu in length. Ventral cornu dentiform, pointed, and close to, but 
larger than the teeth of the median process. Median process possess- 
ing about 10 subequal teeth which become progressively larger 
apically. Basal process small, straight, and only slightly larger than 
the teeth of the median process. 
Larva: The larva of this species was described by Rozeboom and 
Komp (1948) as Culex scutatus. The paratype larvae described by 
Lane (1936 and 1953) are actually members of the subgenus Micro- 
culex and were misassociated with the adult form. 
Antennal tuft located in a constriction near the outer third. Pre- 
clypeal spines long and slender. Frontal head hair 4 unusually large, 
with five to nine branches; frontal head hairs 5, 6, and 7 large, with 
four branches. Mentum with teeth equal in size, about 12 on each 
side. Abdominal integument glabrous. Comb with about 40 scales 
