90 Transactions of the Royal Canadian Institute 



The larvae live in early spring pools, particularly cranberry bogs, 

 hatching from overwintering eggs. The attack of the adult is described 

 as blood-thirsty. The mating habits of the males are unknown. The 

 species is local and rare. 



Distribution: Southern Canada to New Jersey; Minnesota. 



Canadian Records. 

 Ottawa, OnJ:ario, June 12, 1917 (A. B. Klugh). 



Aedes (Heteronycha) pullatus Coquillett. 



Culex pullatus Coquillett, Proc. Ent. Soc. Wash., vi, 168, 1904. 

 Aedes acrophilus Dyar, Ins. Ins. Mens., v, 127, 1917. 



A medium sized black mosquito. Mesonotum dull olivaceous yellow 

 when fresh, fading to mossy whitish ; lines distinct, narrow, approximate, 

 median lines normally present, the side stripes more often obsolete. 

 Abdomen black, the basal segmental white bands narrowed centrally or 

 obsolete dorsally, widened at the sides; venter pale, with dark apical 

 segmental bands. Legs black, the femora pale below; knee-spots white. 

 Wing-scales narrow, all dark. 



The winter is passed in the egg stage. The larvae develop in early 

 ground-pools, more especially muddy pools along streams and lakes. 

 They are somewhat late in development, being the last of the forest 

 species to be found as larvae. The species frequents high altitudes. The 

 males swarm after sunset in openings of the forest or over willows. In the 

 far north, in Jurie., when it is light practically all night, the swarms may 

 be seen as early as 4 p.m. when the sun passes behind a temporary cloud. 



Distribution : Alaska and the Yukon, down the Rocky mountains to 

 Colorado. 



Canadian Records. 



Lake Louise, Alberta, July 11, 1918 (H,. G. Dyar). 

 Banff, Alberta, July 14, 19 18 (H,. G. Dyar). 

 Kalso, British Columbia, July 2, 1903 (H. G. Dyar). 

 Kwinitsa, British Columbia, May 29, 19 19 (H. G. Dyar). 

 Bennett, British Columbia, July 28, 1919 (H. G. Dyar). 

 Atlin, British Columbia, July 23, 1919 (H. G. Dyar). 

 Carcross, Yukon Territory, July 21, 1919 (H. G. Dyar). 

 Whitehorse, Yukon Territory, June 27, 19 19 (H, G. Dyar). 

 Tahkeena River, Yukon Territory, July 19, 19 19 (H. G. Dyar). 



