46 A Monograph of Culicidae. 
Legs dark brown; coxae, under surfaces of the femora and 
the tibiae white ; in some lights the legs show metallic blue and 
deep purple reflections; ungues equal and uniserrated. 
Wings with a dusky-yellowish tinge, testaceous at the base ; 
veins clothed with dark brown scales, and edged with long scales 
towards the apex of the wing, without long scales towards the 
Fig. 168. 
Wing of ? Culex serratus. n. sp. (Rio de 
Janeiro.) (X. 9.) 
base; costal and first longitudinal veins covered with deep 
purplish-black scales ; posterior cross-vein scarcely its own length 
distant from the mid cross-vein ; fork-cells both rather short ; 
the first sub-marginal cell very little longer and narrower than 
the second posterior cell. Halteres pale ochraceous. 
Length. —5*5 to 6‘5 mm. 
$ . Antennae pale ochraceous, with narrow brownish bands 
at the verticils ; plume-hairs brown ; proboscis black ; palpi covered 
with dark brown scales, the last joint pale 
brown, hairs brown; a little longer than 
proboscis. 
Thorax, &c., as in 9 • Abdomen 
narrow, covered with dark purplish-brown 
scales, except at the base of the seg¬ 
ments and laterally, where they are more 
or less nude and testaceous in colour; 
Fig. 169. there are also a few white scales on each 
Culex serratus. n. sp. 
a, Fore ungues, and b, mid side of the fifth, sixth, and seventh seg- 
unecues, of the cf ! c, fore , t t , i • i 
ungues Of the 9. (Abnormal ments, and several over the apical seg- 
vanety.) ments ; posterior borders with golden 
hairs, ventrally pale; $ claspers brown; fore and mid ungues 
unequal, larger one with two, smaller with one tooth; hind 
ungues equal, each with small thick tooth and basal swelling. 
Length. —6-5 mm. 
Habitat .—Rio de Janeiro (Senhor Carlos Moreira) (9. 12. 
1899) ; Lower Amazon (Austen) (25. 11. 96) ; New Amsterdam 
(Rowland) (61); Trinidad (UTich). 
Time of capture. —November, in Brazil (November 5), Feb¬ 
ruary, in British Guiana. 
