34 INSECUTOR INSCITI^ MENSTRUUS 



Males of pullatus were obsen'-ed swarming at Banff after 

 sunset, high in the spruce forest in little openings between the 

 trees, some 10 to 15 feet from the ground. They could be 

 reached only with a long net. 



Two hundred and ninety specimens were obtained, as fol- 

 lows: Banff, Alberta, July 14-15, 1918; Lake Louise, Alberta, 

 July 11-25, 1918. Only one pullatus was taken flying at Lake 

 Louise, July 11, those brought from there being in larvae and 

 pupae at that date. 



Aedes hirsuteron Theobald. 



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

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



This species occurs at the eastern limits of the Canadian 

 fauna and extends well to the south. A similar form, aestiv- 

 alis Dyar, appears in the western Rockies (Kaslo, British Co- 

 lumbia; Sand Point, Idaho), the two being apparently separ- 

 ated by a geographical interval. In the eastern wooded 

 prairies a form occurs which I am in doubt about in the absence 

 of male and larva. It is smaller than hirsuteron and aestiv- 

 alis, the mesonotum gray with median brown stripe, wing- 

 scales black. It is larger than aldrichi, and does not show the 

 divided mesonotal stripe of that species. I propose to liold it 

 under the name vinnipegensis. Type of Aedes vinnipegen- 

 sis, new species. No. 31981, U. S. Nat. Mus. A cotype has 

 been deposited at Ottawa, Canada. 



Thirty-seven females, Winnipeg Beach, Manitoba, July 4-5, 

 1918. 



Two of the specimens show a development of the posterior 

 lateral stripes, accompanied by a brown lateral dot on either 

 side of the mesonotal median stripe. I have also four speci- 

 mens of the same from Aweme, Manitoba, July 6 and August 

 4, 1910 (N. Criddle). The costa, first and third veins look 

 blacker than the subcostal, second and fourth veins, although 

 all the scales are black. 



Specimens of normal size appear farther south. I have 68 

 specimens from Fort Snelling, Minnesota, taken by Maj. E. 



