260 THE CANADIAN ENTOMOLOGIST. 



These two closely-allied boreal species seem to be the common- 

 est Enallagmas of the prairies. I believe that they are one and the 

 same species, as I have seen males which could be placed about 

 equally well in either species. 



12. Enallagifia hageni Walsh. 



MANITOBA.— VVestbourne, July 27, 1908, 2 c? s, i $ (Ws). 



SASKATCHEWAN.— Regina, July 17, 1907, i $? (F). 



Apparently rarer than in Ontario, where it is by far the common- 

 est Enallagma, except, perhaps, in the far north. 



The record from Regina is quite doubtful, as the females of this 

 species are difficult to separate with certainty from certain allied 

 species. 



13. E?ial/agma ehrium Hagen. 



MANITOBA.— Westbourne, July 27, 29, 1908, 3 (^ s, 5 $s 

 (Ws). Winnipeg, July 7, 1908, i Ç ; July 24, 1908, 2 (^ s (Ws). 

 SASKATCHEWAN.— Carnduff, July 16, 1900, 2 c^ s (Wg). 

 This species is not known in Canada west of Saskatchewan. 



14. Enallagma civile Hagen. 



MANITOBA.— Winnipeg, July 9, 1908, i c^ ; July 28, 1908, 



1 9 (Ws). 



This is the northern limit of this species as far as known. 



15. Ophiogotnphus rupiiisiilensis Walsh. 



MANITOBA. — Aweme, June 30, 1907, 2 ^^ s ; July 19, 1910, 



2 9s(C). 



SASKATCHEWAN.— Saskatoon, July, 1907, i ^ (Wg). 



The dark markings of the thorax are less distinct than in speci- 

 mens from Algonquin Park, Ont. 



The females were quoted doubtfully in the Entomological Record 

 for 1 9 1 1 as O. severus Hag. 



16. Ophiogomphus severus \\2igtv\. 



ALBERTA.— Lethbridge, July 8, 1909, i ^ (Ws). 



This specimen was compared with specimens of O. severus in 

 the Hagen collection (Museum of Comparative Zoology, Cambridge, 

 Mass.). ' 



17. Gomphus externus Hagen. 



MANITOBA. — Aweme, June 30, 1907, i $ ; July 22, 1909, i 

 ^j July 9, 1910, I c^ (C, Ws). Winnipeg, June 25, 1910, i c^ , i 

 I ? (C). 



