58 PROCEEDINGS OF THE NATIONAL MUSEUM. VoL. 62. 
The markings are not distinguishable from dazarensis, although, 
as seen from the male genitalia and larvae, the species is extremely 
close to punctor. The winter is passed in the egg state, the larvae 
developing in early muskeg pools in the rainy Pacific coast strip. 
The mating habits of the males have not been observed. 
Distribution.—Pacific coast, British Columbia to Alaska. 
United States Records. 
ALASKA: Ketchikan, June 20, 1919 (H. G. Dyar). 
Cape Fanshaw, June 22, 1919 (H. G. Dyar). 
AEDES (HETERONYCHA) CYCLOCERCULUS Dyar. 
Aédes cyclocerculus Dyar, Ins. Ins. Mens., vol. 8, p. 28, 1920. 
A medium-sized blackish mosquito. Mesonotum brownish yel- 
low, with two median brown lines, and short thick posterior lateral 
ones, heavier and blacker than the median ones. Abdomen black, 
with narrow basal segmental white bands, narrowed centrally; ven- 
ter whitish scaled. Legs black, mixed with gray scales, especially 
below, the femora white below. Wing scales wholly dark. 
By the male genitalia and larvae, this species is closely allied to 
punctor. It is a rather small species, the winter being passed in 
the egg state, the larvae developing in early muskeg pools in the 
rainy Pacific coast strip. The mating habits of the males have not 
been observed. 
Distribution.—Pacific coast, British Columbia to Alaska. 
United States Records. 
ALASKA: Juneau, June 23, 1919 (H. G. Dyar). 
Ketchikan, June 20, 1919 (H. G. Dyar). 
Cape Fanshaw, June 22, 1919 (H. G. Dyar). 
AEDES (HETERONYCHA) ABORIGINIS Dyar. 
Aédes aboriginis Dyan, Ins. Ins. Mens., vol. 5, p. 99, 1917. 
A large blackish mosquito. Mesonotum yellow brown, with two 
broad central stripes, sometimes confluent, and short thick posterior 
lateral ones. Abdomen black, with basal segmental narrow white 
bands; venter white scaled, with more or less distinct black bands 
at the apices of the segments. Legs black, some whitish scales in- 
termixed; femora white below. Wing scales wholly dark. 
The markings of the mesonotum are not separable from lazarensis. 
The form with the mesonotal stripes united is practically as in 
punctor, to which this species is closely allied in the male genitalia; 
the larvae, however, are distinctive. The winter is passed in the 
egg state, the larvae developing in early spring pools of a foul 
character, not in typical muskeg pools. The males have been ob- 
