80 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
United States Records. 
Montana: Drummond, July 10, 1917 (H. G. Dyar). 
Whitehall, July 11, 1917 (H. G. Dyar) . 
Bozeman, July 12, 1917 (H. G. Dyar). 
AEDES (HETERONYCHA) PALUSTRIS Dyar. 
Aédes palustris Dyan, Ins. Ins. Mens., vol. 4, p. 89, 1916. 
Aédes palustris, var. pricei Dyar, Ins. Ins. Mens., vol. 5, p. 16, 1917. 
A large blackish mosquito with ringed legs. Mesonotum gray at 
the sides, often intermixed with brown, a broad brown dorsal stripe 
and short posterior side stripes, not clearly marked. Abdomen black 
with basal segmental triangular spots, often separated from the lat- 
eral spots and sometimes joined into a longitudinal dorsal line (var. 
pricet) ; venter white, with broken narrow median black line. Legs 
black, with many white scales on femora, tibiae and first tarsal joint, 
the femora pale below; tarsi black, with white rings at the bases of 
the joints, broad on the hind legs. Wing scales black, with many 
white ones intermixed on all the veins. 
The larvae live in early marsh pools. The form is considered a 
race of fitchii, the differences in larvae and male genitalia not being 
marked. The adults fly in forest till late summer. 
Habitat—Mountains of California and Oregon, coastal region of 
Pacific from Washington to Alaska where the land is not too pre- 
cipitous. 
United States Records. 
CaLtrorNiA: Yosemite, May 20, 1916 (H. G. Dyar). 
Fallen Leaf Lake, June 24, 1916 (H. G. Dyar). 
Tahoe City, June 17, 1920 (H. G. Dyar). 
Truckee, June 21, 1920 (H. G. Dyar). 
Summit, June 22, 1920 (H. G. Dyar). 
Gold Lake Camp, July 21, 1916 (H. G. Dyar). 
Camp Elwell, June 24, 1920 (H. G. Dyar). 
OrEGON: Crater Lake, July 30, 1920 (H. G. Dyar). 
WasHINGTON: Lake Cushman, June 27, 1917 (H. G. Dyar). 
ALASKA: Healy, June 24, 1921 (J. M. Aldrich). 
AEDES (HETERONYCHA) RIPARIUS Dyar and Knab. 
Aédes riparius Dyar and Knap, Journ. N. Y. Ent. Soce., vol. 15, p. 218, 1907. 
A large yellowish mosquito. Mesonotum dark yellow on the sides, 
a broad brown band in the middle, contiguous to faint short posterior 
lateral stripes, the mesonotum more or less overspread with brown. 
Abdomen blackish, with yellowish diffuse basal segmental bands and 
scattering pale scales; venter yellowish, with black scales intermixed. 
Legs mostly yellow scaled, the tarsi black, with basal white rings on 
the joints, those on the hind legs large. Wings with the scales dark, 
many yellowish ones intermixed. 
