94 Transactions of the Royal Canadian Institute 



Canadian Records. 

 None. 



Aedes (Heteronycha) hirsuteron Theobald. 

 Culex hirsuteron Theobald, Mon. CuHc, ii, 98, 1901. 

 Culex pretans Grossbeak, Ent. News, xv, 332, 1904. 

 Culex aestivalis Dyar, Journ, N.Y. Ent. Soc, xii, 245, 1904. 

 Aedes vinnipegensis Dyar, Ins. Ins. Mens., vii, 34, 1919. 



A rather small, dark gray mosquito. Mesonotum dark brown in the 

 middle, gray on the sides and over antescutellar space. Abdomen black, 

 with basal segmental straight white bands; venter whitish. Wing scales 

 all dark, but the costa, first and third veins distinctly darker than the 

 others. Legs black, whitish below, the femora largely white; kn^se-spots 

 white. 



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

 spring pools. The mating habits of the males are unobserved. The 

 form vinnipegensis is a diminutive race from Manitoba; aestivalis is the 

 western form, large and showing slight larval differences. The adults 

 inhabit wooded country, not being found in the open. 



Distribution: Eastern United States from the Gulf of Mexico to 

 southern Canada, thence along the southern fringe of the forest to the 

 Pacific coast. 



CANADii^N Record. 

 Ottawa, Ontario, June 16, 1917 (A. B. Klugh). 

 Winnipeg Beach, Manitoba, July 4, 1918 (Hj. G. Dyar). 

 Aweme, Manitoba, July 6, 191 o (N. Criddle). 

 Kaslo, British Columbia, July 4, 1903 (H. G. Dyar). 

 Lardo, British Columbia, July 7, 1093 (H. G. Dyar). 

 Sicamous, British Columbia, July 28, 1916 (C. G. Hiewitt). 

 Ainsworth, British Columbia, July 10, 1903 (H. G. Dyar). 

 Wigwam, British Columbia, August 14, 1903 (H. G. Dyar). 

 P/rince George, British Columbia, September 7, 1919 (H. G. Dyar). 

 Nanoose Bay, British Columbia, August i, 1903 (J. Fletcher). 



A^des (Heteronycha) aldrichi Dyar & Knab. 

 Aedes aldrichi Dyar & Knab, Proc. U.S. Nat. Mus., xxxv, 57, 1908. 



A small dark gray mosquito. Mesonotum yellowish, with two median 

 dark brown lines and short posterior lateral ones. Abdomen black, with 

 basal segmental white bands, often narrowed in the middle; venter 

 whitish. Legs black, largely whitish below, the femora white below. 

 Wing scales all blackish. 



