84 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
New York: Plattsburgh, April, 1905 (H. G. Dyar). 
Karner, May 16, 1904 (KE. P. Felt). 
Ithaca, May 12, 1901 (O. A. Johannsen). 
WISCONSIN: Saxeville, May 31, 1909 (B. K. Miller). 
Group ALPINUS. 
AEDES (HETERONYCHA) ALPINUS Linnaeus. 
Culex alpinus LINNAEUS Flora Lapp., ed. 2, p. 381, 1792. 
Culex nigripes ZETTERSTEDT, Ins. Lapp., p. 807, 1838. 
Aédes innuitus Dyar and Knap, Ins. Ins. Mens., vol. 5, p. 166, 1917. 
Aédes n. sp. Dyar, Rept. Can. Arct. Exp., vol. 3, pt. C, p. 33, 1919. 
A rather large black mosquito, with long hairy vestiture, espe- 
cially conspicuous on under side of thorax. Mesonotum dark brown 
scaled, usually uniformly, a little lighter on the margins; setae long. 
Abdomen black, with broad basal segmental white bands; venter 
whitish scaled. Legs black, more or less sprinkled with white scales. 
The femora pale beneath. Wing scales black. 
The larva develops in early summer in ground pools in the Arctic 
regions. The larva has the anal segment ringed, and detached teeth on 
the pecten of air tube, and is well figured by Wesenberg-Lund in his 
classical paper ori Danish mosquitoes. The habits of the males are 
unknown. 
Distribution—Arctic Europe, Greenland, and North America. 
United States Records. 
ALASKA: Konganevik, Camden Bay, July 4, 1914 (I. Johannsen). 
Collinson Point, July 22, 1914 (F. Johannsen). 
AEDES (HETERONYCHA) NEARCTICUS Dyar. 
Aédes nearcticus Dyar, Rept. Can. Arct. Exp., vol. 3, pt. C, p. 32, 1919. 
Aédes (Ochlerotaius) parvulus Enwarpbs, Bull. Ent. Res., vol. 3, p. 314, 1921. 
A medium-sized black mosquito, much like alpinus, rather smaller, 
the legs less white speckled. The male genitalia differ in being less 
strongly chitinized, and the filament of the claspette has a broader 
expansion. The larvae have the pecten teeth of the air tube even, 
the anal segment not ringed. 
The larvae develop in early summer in ground pools in the arctic 
regions. The habits of the males are unknown. This species flies 
with alpinus, both having a circumpolar distribution. 
In both this species and alpinus, the basal lobe of the sidepiece of 
the male hypopygium is normally evenly haired, though sometimes 
the marginal hair is thickened into a distinct spine. 
Distribution.—Arctic Europe and America. 
United States Records. 
ALASKA: Konganevik, Camden Bay, July 4, 1914 (F. Johannsen). 
