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^ refer to the discal spot of the 
forewing of lahradorensis as being entirely absent or only faintly outlined by 
a few scattering dark scales and figure a male specimen from Hopedale, Labra- 
dor.- In our specimens the discal spot is present but faint. Verity^ figures a 
female from Labrador. The butterfly is also figured by Holland*. 
Eurymus palaeno chippewa Edw. 
Colias helena Edw.: Butt, of N.A., Vol. I, Colias 1; 
Colias chippewa Edw.: Proc. Ent. Soe. 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); 
Ladue 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 l)ranch 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^, 
the lower wings being not so bright resulting from the dark scales of the underside 
shewing 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^ resemble closely specimens in our series as do also those of Verity^. 
1 Cont. Nat. Hist. Lep. N.A., III, 2, pi. VII, 6. 
2 Dr. MoDunnough 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 Rh( palocera Palsearctica, pi. XL, 20. 
' The Butterfly Book, pi. XXXV, 14; XXXVI, 1.5, Hi. 
^ Ridgway's Color Standards and Nomenclature, 1912. 
« Butt, of N.A., Vol. 1, Colias 1, figs. 5, 6, 7. 
' Rhopalocera Palsearctica, pi. VIII, 43, 44, 45. 
