Genus Culex. 
101 
sub-marginal cell very short, a little longer and about half the 
width of the second posterior cell; its base nearer the apex of 
the wing than the base of the second posterior cell; its stem 
equal in length to the cell; stem of the second posterior longer 
than the cell; posterior cross-vein about its own length distant 
from the mid cross-vein. Halteres ochraceous with a slightly 
fuscous knob. 
Length .—4 mm. 
Habitat. —Manitoba, Canada (W. I. Spencer) (19. 1. 1900). 
Time of capture.—July. 
Observations .—Four specimens of this species have been 
received. One shows considerable abdominal variation, the 
white scales being dotted irregularly over the surface; the 
abdominal ornamentation is, however, decidedly characteristic, 
as is also the thoracic, and should serve at once to separate it 
from the other Culices with unbanded legs. The distribution of 
the two coloured scales to the wing is also peculiar. Two of the 
specimens were from Stony Mountain, and the other two from 
St. Boniface. It has some resemblance to C. dorsalis , but is 
distinct, having unbanded legs, etc. 
96. Culex impudicus. Ficalbi (1890). 
(Bull. Soc. Ent. Ifal. 190; Bull. Soc. Eat. Ital. p. 209 (1896); ibid, (reprint), 
p. 166 (1899).) 
“ A large species with the thorax dark grey-brown dorsally, with two 
brassy longitudinal stripes behind, paler just over the root of the wings; 
pleurae grey with white patches of scales; abdomen in the ? pure black, 
Fig. 199. 
Male genitalia of Culex impudicus (after Ficalbi) 
with narrow basal white bands and a minute posterior white line in the 
middle of the segments, expanding in five segments into lateral white 
spots; venter leaden-wliitc, each segment with a lateral black spot at the 
