THE CANADIAN ENTOMOLOGIST. 263 



30. Dorocordulia lintnei'i Hagen. 



MANITOBA.— Lake Wfnnipeg (Hagen). 



31. Somatochlora setnicircularis Selys. 



ALBERTA.— Banff, July 7, 15, 18, 1908, i cf, 2 9 s (S). 



Also recorded from Laggan by Osbiirn. It occurs in abundance 

 in British Columbia, and although recorded from Maine, I consider 

 it very doubtful whether the latter record belongs to the same species. 



2,2. Somatochlora macroto?ia Williamson. 



MANITOBA.— Winnipeg Beach, June 19, 1909, 3 9 s (Ws). 

 Winnipeg, June 16, 19,1910,2 d^s, 4 9 s (Ws). Husavick, Aug. 

 17, 1910, I 9 (Ws). 



In one of the males of this beautiful insect the wings are slightly 

 tinged with yellow, in the other there is a clear yellow patch on the 

 basal half of the wings, most distinct on the hmd pair. Of the 

 females, the wings vary considerably in the amount of flavescence. 

 In one of the Winnipeg specimens, e.g., the basal half of both pairs 

 is only slightly tinged with yellowish, the rest clear ; in others the 

 basal half to three-fifths is yellowish brown, while in the specimen 

 from Husavick the wings are wholly suffused with a rather dark 

 yellowish brown. 



A male of this species was sent to Mr. Williamson for determina- 

 tion. It was hitherto known only from Duluth, Mmn. 



33. Somatochlora albicincta Barmeister. 



MANITOBA.— Aweme, June ir, 1909, i 9 (C). 

 ALBERTA.— Banff, July 7, 1908, i 9 (S). 

 A species of the north, probably distributed through almost the 

 entire Boreal Region, except the Arctic Zone. 



34. Somatochlora sp. 



I have also examined a female Somatochlora from Banff, Alta. (S), 

 which I was unable to determine. 



35. Libellula quadrijuaculata Lin ne'. 



MANITOBA.— Aweme, July 12, 1906, i d"; July 9, 1907, i cT 



Winnipeg, July 8, 9, 1908, 2 o^s (Ws). 



SASKATCHEWN.— Duck Lake, July 22, 1907, i 9 (F)- 

 Circumpolar and very generally distributed. It is conVmon in 



the Eastern Provinces and in British Columbia. 



