10 i Canadian Arctic Expedition, 1913-18 



The specimen from Hannah bay was identified by W. H. Edwards as 

 pelidne and that from Koong-neow inlet bears the same name in Fletcher's hand- 

 writing. Two of the specimens from Labrador were examined by Dr. H. 

 Skinner. Dr. McDunnough has very kindly sent to me specimens of pelidne 

 from Hopedale, Labrador. The specimens from Hudson bay and Labrador we 

 presume are labradorensis Scud. 



Comparing these specimens with the series determined as chippewa referred 

 to below the following differences are apparent. In both sexes of pelidne the 

 marginal bands are narrower, especially on the secondaries, and the discal spot 

 on the underside of the secondaries is distinctly margined with red mostly of a 

 purplish shade. Barnes and McDunnough 1 refer to the discal spot of the 

 forewing of labradorensis as being entirely absent or only faintly outlined by 

 a few scattering dark scales and figure a male specimen from Hopedale, Labra- 

 dor. 2 In our specimens the discal spot is present but faint. Verity 3 figures a 

 female from Labrador. The butterfly is also figured by Holland 4 . 



Eurymus palaeno chippewa Edw. 



Colias helena Edw.: Butt, of N.A., Vol. I, Colias 1; 



Colias chippewa Edw.: Proc. Ent. Soc. Phil. 2, 80, 1863 (helena preoccupied). 



One specimen, a female, taken at Nome, Alaska, August 24-25, 1916 

 (F. Johansen). 



In the Canadian National collection at Ottawa there are fifteen other 

 specimens which we have determined as chippewa. They bear labels as follows : 

 Pelly river, Yukon Territory, 15 miles above Woodside river, July 14, 1907, 

 3 specimens, males (J. Keele) ; Stewart river, above Nadaleen river, Yukon Terri- 

 tory, July 18, 1905, 2 males (J. Keele) ; Nansen creek, Placer Mining Camp, Yukon 

 Territory, July 7, 1914, 1 male, 2 females (D. D. Cairnes); Harrington creek, 

 Yukon Territory, lat. 65° 05', long. 141°, July 30, 1912, male (D. D. Cairnes); 

 Laclue river, Yukon Territory, July 4, 1905, male (J. Keele); Champagne 

 Landing, 50 miles from Whitehorse, by Kluane road, Yukon Territory, June 

 8, 1914, female (D. D. Cairnes); Siwash creek, international boundary, lat. 65° 

 57', June 30, 2 males (D. D. Cairnes). Mt. Eduni, Gravel river, Northwest 

 Territories, 6,000 feet, July 8, 1908, male (J. Keele); west branch of the Thelon 

 river, Northwest Territories, July 5, 1900, male (J. Tyrrell). 



The males are fairly constant in markings, and in general are in good 

 condition. The colour of the upper surface of all wings is chalcedony yellow 5 , 

 the lower wings being not so bright resulting from the dark scales of the underside 

 showing through. The marginal blackish bands are noticeably wide. Under- 

 neath the colour varies in the specimens from pale yellow to a decidedly greenish- 

 yellow, the secondaries overlaid with blackish scales as is also the costal area. 

 In all the specimens the discal spot on the secondaries, beneath, is white, faintly 

 margined with yellow. The four females are also similar in appearance, being 

 whitish with broad marginal band on primaries particularly at apex. Edwards' 

 figures 6 resemble closely specimens in our series as do also those of Verity 7 . 



1 Cont. Nat. Hist. Lep. N.A., III, 2, pi. VII, 6. 



2 Dr. McDunnough has since informed me that the character is not always constant. In the Barnes 

 collection specimens have recently been added which show the discal spot. 



3 Rhcpalocera Pala?arctica, pi. XL, 20. 



4 The Butterfly Book, pi. XXXV, 14; XXXVI, 15, 16. 



5 Ridgway's Color Standards and Nomenclature, 1912. 



6 Butt, of N.A., Vol. 1, Colias 1, figs. 5, 6, 7. 



7 Rhopalocera Palaearctica, pi. VIII, 43, 44, 45. 



