art. 1. MOSQUITOES OF THE UNITED STATES—DYAR. 89 
The winter is passed in the egg state, the larvae developing in 
early ground pools in dry country. In the presence of irrigation 
several generations, or hatchings, may occur in the season and the 
species become abundant. The females are severe biters. The males 
swarm after sunset over prominent objects on the prairie. 
Distribution.—Dry valleys and plains from Mexico to Canada. 
United States Records. 
New Mexico: Springer, August 25, 1909 (C. N. Ainslie). 
Cimarron, September, 1909 (C. N. Ainslie). 
Las Vegas Hot Springs, August 3 (H. 8S. Barber). 
Koehler, July 20, 1918 (W. R. Walton). 
Cortorapo: Oxford, September 1, 1918 (I. M. Way). 
Grand Junction, July 12, 1911 (G. P. Weldon). 
Akron, June 24, 1909 (H. L. Shantz). 
Boulder, September 2, 1907 (S. A. Rohwer). 
TrxAs: Brownsville, August 28, 1916 (M. M. High). 
Plano, November (HE. 8S. Tucker). 
Montana: Cascade, July 25, 1907 (W. E. Britton). 
Laurel; July 16; 1917 (H. G. Dyar). 
Whitehall, July 11, 1917 (H. G. Dyar). 
Bozeman, July 12, 1917 (H. G. Dyar). 
Bigtimber, August 25, 190S (R. A. Cooley). 
Wyomine: Basin, August 3, 1917 (W. V. King). 
IpaHo: Boise, August 4, 1901 (C. B. Simpson). 
NortH Dakora: Devils Lake, July 20, 1921 (H. G. Dyar). 
Grand Forks, July 21, 1921 (H. G. Dyar). 
SoutH Dakota: Brookings, summer, 1889 (J. M. Aldrich). 
AEDES (TAENIORHYNCHUS) MITCHELLAE Dyar. 
Culex nitchellae Dyar, Journ. N. Y. Ent. Soc., vol. 13, p. 74, 1905. 
A medium-sized blackish-brown mosquito with ringed legs. Meso- 
notum rusty brown, darker on the sides and streaked with lighter 
centrally. Abdomen black, with yellowish-white basal segmental 
bands and median longitudinal stripe; venter gray, with black and 
white scales intermixed. Legs black, with many white scales inter- 
mixed, especially on femora and tibiae; femora pale below; tarsi 
with snowy white rings at the bases of the joints, the last joint all 
white. Wing scales entirely black. Probiscis with a white ring. 
The larvae occur in early ground pools. The species is very sel- 
dom met with, and then in small numbers. The habits are unknown. 
Distribution.—Southern States. 
United States Records. 
Trxas: Victoria, April 5, 1919 (J. D. Mitchell). 
ALABAMA: Mobile, March, 1905 (G. Dimmock). 
Fuiorma: Kissimmee, March 19, 1905 (H. G. Dyar). 
Green Cove Springs, March 4, 1905 (A. N. Caudell). 
Magnolia Springs, March 38, 1905 (Dyar and Caudell). 
Jacksonville, March 2, 1905 (Dyar and Caudell). 
SouTHERN GEoRGLA: March 2, 1905 (Dyar and Caudell). 
