48 1 ' Canadian Arctic Expedition, 1913-18 
Plate I. 
Fig. 1. Genitalia of Oeneis taygete Hbn. (Near Whitehorse, Yukon Territory). 
2. Genitalia of Oeneis semidea Say. (Gravel river, Northwest Territories.). 
3. Genitalia of Oeneis semidea Say. (New Hampshire, U.S.). 
4. Genitalia of Oeneis semidea arctica Gibson. (Bernard harbour. Northwest Territories). 
.5. Genitalia of Oeneis simulans Gibson. (Bernard harbour. Northwest Territories). 
6. Genitalia of Oeneis cairnesi Gibson. (Yukon Territory). 
7. Genitalia of Oeneis peartice Edw. (Bernard harbour, Northwest Territories). 
8. Genitalia of Oeneis brucei yukonensis Gibson. (Yukon Territory). 
(All magnified 14 times.) 
