440 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



Doctor Strecker refers to this species a number of exauiples of 

 Brentltlx Avhicli he received from (xort'ckon. These were siiid to have 

 been collected in the Athabaska region.-' 



BRENTHIS CHARICLEA var. BOISDUVALII (Duponchel). 



I found this beautiful variety oiil}- upon the summit of Mount Tha- 

 oii-tha, in the Nahanni Mountains, Mackenzie, where two were captured, 

 Jul}^ 16, 1903. The insects were flying in a crater-like depression 

 grown up with Yihutnuin., Rosa^ and Delphi nhnn. Mr. Preble 

 secured a specimen at Fort Kae, July 29, 19(>3; one at Fort Simpson, 

 May 22, 1904; and four at the mouth of the North Nahanni River, 

 July 25, 1904. 



1 can lind no pul)lished records of this variety for the Athabaska- 

 Mackenzie region. 



BRENTHIS TRICLARIS (Hiibner). 



This species is uncommon, if not rare, in the Athabaska-Mackenzie 

 region. It was not secured by either Mr. Preble or myself in 1903-4. 

 Edwards records it from Fort Simpson;'^ while Strecker mentions a 

 number of specimens from the Athabaska region.' 



BRENTHIS FREIJA (Thunberg). 



I secured my lirst specimen of this species at Athabaska Landing, 

 Alberta, May 15, 1903. It was next noted on the Smith Portage, 

 June 12 and 13, where a tine series of both sexes was collected. At 

 Fort Simpson in 1904 Mr. Preble lirst observed B. frr/ja^ May 15, on 

 which date he collected three males. He informs me the insects were 

 then just beginning to appear, but were common about the post a week 

 later. Farther down the Mackenzie River Mr. Preble took two males 

 at Fort (xood Hope, June 22, and another specimen at the mouth of 

 the North Nahanni River, July 25, 1904. 



Butler records a specimen from Fort Oood Hope, Mackenzie, col- 

 lected July 18, 1892, by Miss Elizabeth Taylor." 



Edwards apparently did not find freija in Mrs. Ross's collection, 

 I tut Strecker mentions several specimens from the Athabaska region 

 which he received from Geffcken.'' 



A Brenthis y^hicXx Richardson secured on the "Arctic coast between 

 C7i'" and 68'^,""'' was listed by White as the form farqain/as: Curtis.-^ 

 The type of this dark Arctic variety was collected in Boothia Felix by 

 Sir John. Ross in the early thirties of last century.!^ 



«Lepidoptera, Rhopaloceres and Heteroceres, 1872, p. 132. 



^ Butterflies of North America, I, 1879 [Synopsis, p. 14]. 



^ Lepidoptera, Rhopaloceres and Heteroceres, 1872, \^. 133. 



''Annals Nat. Hist. (6), XII, 1893, p. 12. 



''See Introduction, p. 428 (footnote). 



/Arctic Searching Expedition, II, 1851, p. 362. 



ffSee Curtis, in Ross's Second Voyage, App., 1835, p. 68. 



