Lepidoptera 111 
Eurymus nastes Bdv. 
Colias nastes Bdv.: Icones, p. 245, pi. 8, 1832. 
Thirty-eight specimens from the following locaUties: Barter island, northern 
Alaska, July 17, 1914, 1 female (D. Jenness); Collinson point, Alaska, July 10, 
17, 1914, 2 females (F. Johansen); Cockburn point, Dolphin and Union strait, 
Northwest Territories, September 2, 1914, 1 male, 1 female (F. Johansen). 
Bernard harbour. Northwest Territories, 13 males, 20 females, July 30, 1915, 
August 1, 4, 6, 11, 14, 17, 25, 1915, July 14, 1916 (F. Johansen). 
This excellent series has enabled us to form a good idea of the range of 
variation which may occur within the species. The wing expanse of the males 
varies from 35 mm. to 38 mm. and the females from 34 mm. to 43 mm. In 
the males the underside both in colour and markings is fairly constant but the 
upperside shows more variation. The secondaries are mostly of a pale fluorite 
green^ more or less dusted with black. The primaries in most specimens are 
darker than the secondaries, the whole wings in some examples being heavily 
dusted with black. In the females there is more colour variation on the under- 
sides, some specimens being greenish-yellow others darker green and others 
again dark green with a pinkish tinge. In most of the specimens the marginal 
band of yellow is conspicuous. 
Verity- has figured a male and a female (types) of the variety rossii Guenee 
brought back by Captain Ro.ss. None of our males can with certainty be 
definitely associated with the figure of the male type but one or two of the females 
match fairly well the figure of the female type. The figures on plate 27 d. of 
Seitz's Macrolepidoptera of the World are more like our specimens. 
A single example (female) was brought back by the Northern Party of the 
Canadian Arctic Expedition. This was collected at Armstrong point, Victoria 
island. Northwest Territories, early July, 1916 (J. Hadley). 
In addition to the above specimens there are in the Canadian National 
collection three females from Sore-head river, east coast of Hudson ba}^ August 
15, 1898 (A. P. Low), and one male specimen from Labrador (collector and 
exact locality unknown). 
FAMILY SATYRIDAE. 
Genus Coenonympha Hbn. 
Coenonympha kodiak yukonensis Holland. 
Coenonympha kodiak var. yukonensis Holland: Ent. News, XI, 386, 1900. 
In 1905, Mr. Joseph Keele, of the Department of Mines, Ottawa, collected 
five specimens of this butterfly as follows: Lansing river, Yukon Territory, June 
24, 3 males, 1 female; Ladue river, Yukon Territory, July 4, female. 
These specimens are in the National collection at Ottawa. This butterfly 
was not collected by any members of the Canadian Arctic Expedition. 
Genus Oeneis Hbn. 
Oeneis chryxus Dbldy. and Hew. 
Oeneis chryxus Dbldy. and Hew.: Gen. Diurn. Lep., II, 383, 1851. 
In the Canadian National collection are two specimens of this specie^ 
takfen by Mr. J. Keele, on the Pelly river, at Hoole canyon, Yukon Territory, 
July 3, 1907, both males. One of the specimens, although rubbed, resembles 
a specimen of the variety Calais Scud, in the Ottawa National collection from 
Go Home bay, Ontario. 
' Ridgway's Color Standards and Nomenclature, 1912. 
2 Rhopalocera Palsearctica. 
