250 A Monograph of Culicidae. 
Note.—This species is closely related to dorsalis, puleri- 
palpis and pulcritarsis ; but it is certainly distinct from dorsalis, 
for I have never seen that species with white hind tarsus; this 
occurs in pulcripalpis, but that species has simple hind ungues. 
I have not seen the species, but I feel sure it is distinct 
9 a eed NY 
GRABHAMIA SPENCERII. Theobald. 
Culez Spencerii. Theobald. 
(Mono. Culicid. II., p. 99, 1901.) 
Additional locality. Idaho, Market Lake (Prof. Aldrich). 
Notes and observations.—Professor Aldrich sent me some 
specimens of this mosquito under the name Culex Curriei, 
Coquillett. They cannot be that species, as they have unbanded 
legs. On the other hand, they resemble structurally my 
Spencerii, described from Canada, but differ from it in abdominal 
ornamentation. As the Canadian specimens, all from the same 
locality, showed marked abdominal variation, I propose to place 
the Idaho specimens as a distinct variety only, the differences 
from the type being defined below :— 
Variety Idahoensis. na. v. 
Abdominal basal bands almost white, broad apical bands 
yellowish-white to white, very narrow, almost obliterated on 
some segments ; the abdomen not pale at the sides, so that only 
broad basal and narrow apical pale areas are shown, the two 
apical segments are mostly pale scaled, and there are scattered 
pale scales on the others. The pale thoracic scales are also of a 
more frosty hue than in the type. 
Professor Aldrich sends the following note regarding this 
species: “It is so small that it readily crawls through ordinary 
mosquito screen. At the hotel in Market Lake it was found 
necessary to apply a thick coat of paint to the screens after they 
were in place; this reduced the size of the holes enough so that 
no further trouble was experienced in their coming through. It 
is a very annoying species, and seems to breed altogether in an 
arm of the Snake River which lies beside the little town, and 
which has no current except during the period of high water in 
the spring. Two miles from the town, where the only breeding- 
place is the seepage from irrigating ditches, there is a different 
species of mosquito.” 
An error occurs in my description of this species (Vol. II., 
p. 10Q): the third vein is dark scaled, as shown in the figure—not 
the second, as stated in the text. 
