4 I Canadian Arctic Expedition, 1913-18 
Papilio glaucus canadensis R. & J. 
Papilio glaucus canadensis R. & J.: Novitates Zoologicse, XIII, 586, 1906. 
Two Yukon specimens of the form canadensis are in the Canadian National 
Collection, namely from: Klotassin river area, lat. 62° 31' to 63° 06'; long. 137° 30' 
to 139° 30', summer, 1916 (D. D. Cairnes), and Frances river (lat. 60° 29'), July 
1, 1887 (Dawson and McEvoy). 
Genus Parnassius Latr. 
Pamassius smintheus Dbldy. and Kew. 
Parnassius smintheus Dbldy. & Hew.: Gen. Diur. Lep., pi. 4, 1847. 
Two specimens in the Canadian National collection from the following 
northern localities: White river district, international boundary, Yukon Terri- 
tory, lat. 61° 55', long. 141°, July 13, 1913 (D. D. Cairnes); White river, 
Yukon Territory, long. 141°, July 23, 1913 (D. D. Cairnes). 
FAMILY PIERIDAE. 
Genus Pieris Schrank. 
Pieris occidentalis Reak. 
Pieris occidentalis Reak.: Proc. Ent. Soc. Phil., VI, 133, 1866. 
One specimen from Bernard harbour, Northwest Territories, July 30, 1915, 
female (F. Johansen). 
In addition to this specimen there is in the Canadian National collection 
at Ottawa, specimens from the following Arctic localities: Mackenzie river, 
opposite Gravel river. Northwest Territories, July 18, 1908 (J. Keele); Mt. 
Eduni, Gravel river. Northwest Territories, July 8, 1908 (J. Keele); Klutlan 
Glacier, elevation 7,500 feet, 141st meridian, international boundary, June 21, 
1913 (E. W. Nesham). 
Pieris napi L. 
Verity^ has treated, at length, the various races and forms of this species. 
More recently, however, Barnes and McDunnough- have discussed the forms 
of napi which occur in the extreme north. 
No specimens of this species were collected by members of the Canadian 
Arctic Expedition but it is of interest to include here records of specimens in 
the Canaclian National collection, which were collected by other explorers. 
Pieris napi arctica Verity. 
Pieris napi arctica Verity: Rhopalocera Palaearctica, 334, 1911. 
In the Ottawa collection there are ten specimens which we have determined 
as this form, namely from the following localities: White river district, Yukon 
Territory, lat. 62° 31' to 63° 06', long. 137° 30' to 139° 30', summer 1916, 2 
males (D. D. Cairnes); valley of the Mayo river, Yukon Territory, July, 1904, 
1 male (J. Keele); Nansen creek. Placer Mining camp, Yukon Territory, July 
4-7, 1914, 3 males (D. D. Cairnes); near Bear creek, 120 miles from Whitehorse, 
on Kluane road, June 17, 1914, 1 male (D. D. Cairnes); between latitudes 67° 25' 
and 66° 30', long. 141°, June 15, 1912, 1 female (D. D. Cairnes); Pelly river, 
Yukon Territory, July 13, 1907, 1 female (J. Keele). In the Entomological 
Record for 1907^ this latter specimen is recorded under the name hulda. 
1 Rhopalocera Palsearctica, Vol. 1. 
2 Cont. Nat. Hist. Lop. N.A., III, No. 2, and IV, No. 2. 
3 Rep. Ent. Soc. Ont., 1907. 
