Lepidoptera 21 i 
1 female, July 16, 1913 (D. D. Cairnes) ; Alaska, collected with other species, 
the label covering all reading " lat. 59° 30' and 141st meridian-lat. 69° 40' and 
141st meridian, June-July, 1912, 1 male (J. M. Jessup)"; Labrador, July 16, 
1894, 1 male (A. P. Low) ; Sore-head river, east coast Hudson bay, lat. 60° 35', 
2 males, 3 females (A. P. Low); Kalik-took-duag inlet, north side of Hudson 
strait, July 26, 1897, 1 female (R. Bell); " Nottingham island, John McKenzie, 
1886, 2 females (R. Bell)"; Finlayson river, Yukon Territory, lat. 61° 40', 
long. 130° 16', July 22, 1887 (McConnell)i; Finlayson lake, Yukon Territory, 
July 27, 1887 (McConnell)i; Pelly or Yukon river, Yukon Territory, August 7, 
1887, 3 specimens (McConnell)i. 
Looking over the above series there is of course considerable variation among 
the specimens not only in the general colour of the upper surface of the wings, 
but also in the arrangement and colour of the markings on the underside. The 
median band particularly on the underside of the secondaries shows marked 
variation. The specimens brought back by members of the Canadian Arctic 
Expedition and also those from the Yukon Territory approach the variety 
arctica Zett., in fact one of the examples, namely the male from Ladue river, 
Yukon Territory, was some years ago determined as arctica by Dr. Henry 
Skinner. The specimens from Sore-head river, east coast of Hudson bay, are 
in general smaller and in the series there is a greater tendency to melanism. 
The marginal spots on the underside of the secondaries are white, very distinct 
and tend to coalesce. These examples differ noticeably from the variety 
boisduvali Dup. which is represented in the Labrador specimens above referred 
to, collected by Dr. A. P. Low. 
Two of the males from Bernard harbour. Northwest Territories, were 
kindly compared by Mr. H. J. Elwes, with specimens in the British Museum 
from Arctic America. Mr. Elwes reported that they agreed precisely with 
specimens collected by Hanbury on the same coast. ^ 
The specimen collected by Jessup in Alaska in 1912, in the district between 
the Porcupine river and the Arctic coast resembles very much Elwes' figure 
of chariclea.^ 
It is of interest to state that the example from Finlayson river was submitted 
.by Fletcher to W. H. Edwards, and on the envelope in which the specimen was 
sent, the following appears in Edwards' handwriting : " This is ver}^ near helena; 
if not think (it) is chariclea. Dyar* refers to helena as a variety of chariclea. 
Brenthis pales alaskensis Holl. 
Brenthis pales var. alaskensis Holland: Ent. News, XI, 383, 1900. 
One specimen, a female, as follows: Bernard harbour, Northwest Territories, 
August 25, 1915 (F. Johansen). 
In the National collection at Ottawa there are also three specimens, both 
males, two taken on July 25, 1912, at Racquet creek, international boundary, 
lat. 65° 20' (D. D. Cairnes), and the other collected on July 5, 1900, on the west 
branch of the Thelon river, Northwest Territories (J. Tyrrell). 
The variety alaskensis was described from the " mountains between Forty- 
mile and Mission creeks." One of the males taken at Racquet creek is shown 
on PI. V, fig. 5. 
Brenthis natazhati, n. sp. 
Upper side: ochraceous-orange^ the black markings much heavier than in 
chariclea or freija, to which species it is closely related, the median and basal 
areas of the secondaries being without any orange. The median spots on the 
primaries coalesce forming a wide distinct band. 
' Recorded by Fletcher as chariclea in Ann. Rep. Geo. Surv. Can. 1887. 
2 Trans. Ent. Soc. Lond., 1903, 239. 
3 Ibid, pi. IX, fig. 8. 
' Dyar, H. G., Proc. Ent. Soc. Wash. V, 130. 
* Ridgway's Color Standards and Nomenclature, 1912. 
