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 hay, 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 McKcnzie, 



1886, 2 females (R. Bell)"; Finlayson river, Yukon Territory, lat. 61° 40', 

 long. 130° 16', July 22, 1887 (McConnell) 1 ; Finlayson lake, Yukon Territory, 

 July 27, 1887 (McConnell) 1 ; Pelly or Yukon river, Yukon Territory, August 7, 



1887, 3 specimens (McConnell) 1 . 



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. 2 



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. 3 



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 very near helena; 

 if not think (it) is chariclea. Dyar 4 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 5 the black markings much heavier than in 

 chariclea or freij a, 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. 



1 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. 



b Ridgway's Color Standards and Nomenclature, 1912. 



