The Mosquitoes of Canada 79 



Canadian Records, 



White River, Ontario, June 20, 1918 (H. G, Dyar). 

 Red Deer, Alberta, July 30, 19 18 (H. G. Dyar). 

 Kalso, British Columbia, May 29, 1903 (H. G. Dyar), 

 Kwinitsa, British Columbia, June 10, 19 19 (H, G. Dyar). 

 Whitehorse, Yukon Territory, July 3, 1919 (H. G. Dyar). 



CuLisETA (Culiseta) alaskaensis Ludlow. 



Theobaldia alaskaensis Ludlow, Can. Ent., xxxviii, 326, 1906. 



A very large blackish mosquito. Proboscis dark brown, palpi with 

 small white tips at the ends of the joints. Mesonotum uniformly colour- 

 ed, without impressed lines, the vestiture of black and white narrow 

 curved scales, appearing coarsely frosted. Abdomen black, with basal 

 segmental white bands, the venter mostly whitish scaled. Legs black, 

 mixed with some white scales, femora whitish beneath, femora and tibiae 

 with a white line on the outer side ; tarsi with white rings at the bases of 

 the joints, mostly small, but large on the second and third joints of the 

 hind legs. Wings broad, the cross-veins in line; scales black, mixed with 

 some white ones along costa, forming tufts or spots at the bases of first, 

 third and fourth veins and the forks of second, fourth and fifth. 



The male genitalia have the unci simple, the penultimate segment 

 without spines. 



The larvae live in grajssy marshes, generally in river-valleys. The 

 adults pass the winter, hiding in hollow logs and similar locations, and 

 appear very early in the spring. The eggs are deposited in rafts on the 

 surface of the water. The adults will attatk man, but are never numerous 

 or particularly troublesome. 



Distribution : Rocky Mountains and ^ icinity to the Yukon Valley, 

 Alaska. 



Canadian Records. 



Calgary, Alberta, April 14, 19 13 (N. Criddle). 

 Edmonton, Alberta, April 27, 1919 (H. G. Dyar). 

 Banff, Alberta (N. B. Sanson). 



Atlin, British Columbia, July 26, 19 19 (H,, G. Dyar). 

 Hope, British Columbia;, May 20, 1919 (E. Hearle). 

 Selkirk, Yukon Territory, July 18, 19 19 (H. G. Dyar). 

 Whitehorse, Yukon Territory, June 28, 1919 (H. G. Dyar). 

 Dawson, Yukon Territory, July 8, 1919 (H. G. Dyar). 



