174 A Monograph of Culicidae. 
Wings with typical brown Culex scales; first sub-marginal 
cell longer and narrower than the second posterior cell, its base 
considerably nearer the base of the wing than that of the latter ; 
stem of the first sub-marginal very short, almost as short as in 
C. pipiens, stem of the second posterior about two-thirds the 
length of the cell ; posterior cross-vein a little more than its own 
length distant from the mid-cross vein ; third long vein, also the 
fifth and sixth and basal portion of the fourth, second and all 
the costal darker scaled than the rest. Halteres with almost 
white stem and pale ochraceous knob. ; 
Length.—5:5 mm. 
gd. Palpi deep brown, with yellow bands ; abdomen with 
basal white bands; ungues of the fore and mid legs unequal, 
uniserrated, hind equal and simple. 
Length.—5°5 mm. 
Locality Para, Brazil (Prof. Goeldi); Rio de Janeiro 
(Lutz). 
Time of capture.—30.8.02 (Dr. Lutz). 
Observations —Described from two females and a male 
collected by Prof. Goeldi. It can at once be told by the 
thoracic ornamentation. 
There is another female and three males which show no 
thoracic ornamentation with a hand lens and which would be 
mistaken for C. cingulatus, F., but careful examination with the 
microscope shows traces of the ornamentation and also the large 
number of mid scutellar chaetae. 
Dr. Lutz has also sent me a male and female which he 
bred, and pointed out at the same time their resemblance to 
C. cingulatus. 
BB. Proboscis unbanded. 
6. Legs basally banded. 
CULEX VITTIGER. Skuse. 
(Mono. Culicid. I., p. 387, 1901.) 
Dr. Bancroft has observed the method of egg-laying in this 
species. The eggs are laid separately, but all close together ; 
they are very large eggs and different in shape, he finds, from 
the general type of Culex egg. 
I have not had time to re-examine this species, but I am 
sure it must be removed from Culex. 
