The Mosquitoes of Canada qq 



much extended, in the extreme form rendering the whole mesonotum 

 black. 



No colouration characters can be giveji to separate all forms of laza- 

 rensis from punctor, diantaeus, aboriginis, intrudens, etc. 



The winter is passed in the egg state, the larvae developing in early 

 ground pools in forest, and at least in on^e case in flood pools. The males 

 swarm after sunset at projecting branches of spruce trees and similar 

 locations. The females are good biters, flying in most profusion shortly 

 after dark. 



Distribution: Nbrthern forests, from Atlantic to Pacific, except the 

 moist Pacific coast belt. 



Canadian Records. 



Ottawa, Ontario, —^ — ,, — ) — (J. Fletcher). 



Height of Land, Ontario, June 17, 1918 (H. N. Awrey). 



Osnaburg, Ontario, Junfe 21, 19 18 (H. N. Awrey). 



Fort Hbpe, Ontario, June 27, 19 18 (H. N. Awrey). 



White River, Ontario, June 25, 1907 (F. Knab). 



Nipigon, Ontario, June 26, 19 18 (H. G. Dyar). 



Dryden, Ontario, July i, 19 18 (H. G. Dyar). 



Kfenora, Ontario, July 2, 19 18 (H. G. Dyar). 



Red Deer, Alberta, July 30, 1918 (H. G. Dyar). 



Lochearn, Alberta, August 5, 1918 (H. G. Dyar). 



Lamoral, Alberta, August 6, 19 18 (H. G. Dyar). 



Banff, Alberta, July 8, 19 18 (H. G. Dyar). 



Laggan, Alberta, July 11, 1918 (H. G. Dyar). 



Glacier, British Columbia, July 28, 1916 (C. G. Hewitt). 



Kalso, British Columbia, June ii, 1903 (H. G. Dyar). 



Prince George, British Columbia, May 9, 19 19 (H. G. Dyar). 



Terrace, Bjritish Columbia, August 12, 19 19 (H. G. Dyar). 



Salvus, British Columbia, May 27, 19 19 (H. G. Dyar). 



Kwinitsa, British Columbia, May 24, 19 19 (H. G. Dyar). 



Atlin, British Columbia, July 22, 19 19 (H. G. Dyar). 



Yukon Valley from Carcross to Dawson, July, 19 19 (H. G. Dyar). 



Aedes (Heteronycha) pionips Dyar. 



Aides pionips Dyar, Ins., Inp, Mens., vii, 19, 1919. 



A large blackish mosquito. Mesonotum yellow, clear and even, rarely 

 gray; two median black linies, broad and distinct and running far back; 

 two short posterior lateral ones. Abdomen black, with basal segmental 

 white bands, narrowed in the middle; venter whitish scaled, with more 



