NO. 1488. BUTTERFLIES OF BRITISH AMERICA— CARY. 441 



BRENTHIS POLARIS (Boisduval). 



In 1908, I did not meet with B. polarlx in the region south of Fort 

 Wrigle}^ (latitude 63^). Mr. Preble captured a single example at 

 Fort (xood Hope, June 20, 1904. 



Mr. Hanbury found this species fairly conmion along the Arctic 

 coast early in July, 1902, according to Elwes." Specimens were taken 

 by the Hanbur}- expedition, as follows: Gray's Bay, July 3, two males, 

 one female; Point Epworth, July 9 and 12, one pair; Barren Grounds, 

 114° W., 67^ 40' N., one pair. 



B. polar is is a species of the Arctic fauna, occurring rarely in the 

 Hudsonian, 



BRENTHIS FRIGGA (Thunberg). 



This beautiful species was first observed on the Smith Portage, 

 June 12, 1903. Three males and four females were collected at this 

 point. Another individual, which was not captured, was noted at Fort 

 Providence, July 8. \n 1904, Mr. Preble collected four specimens at 

 Fort Good Hope, June 21 and 22 — three males and a female. 



The only previous record is from Fort Simpson, In his report on 

 the butterflies collected by E. W. Nelson in Alaska, Edwards com- 

 pares specimens of B. frtgya from St. Michael with Fort Simpson 

 examples.* 



B. fr!<j(ja is a splendid butterfl}^ and as it flits about in a grassy 

 muskeg the rich purplish brown on the underside of the secondaries 

 contrasts most beautifully with its surroundings. Specimens are not 

 difficult to capture, as the flight is slower and weaker than with the 

 majorit}' of the genus. 



BRENTHIS FRIGGA var. SAGA (Kaden). 



A male example of this variety was collected at the Rapids of the 

 Drowned, Slave River, June 29, 1892, by Miss Elizabeth Taylor, and 

 is now in the British Museum. This specimen has previously been 

 recorded as B. lellona by A. G. Butler,'' but I am informed by Francis 

 A. Hei'on that it is properly referable to the present form. 



Strecker records specimens secured by Gefl'cken from the "Atha- 

 basca region."'^ Whether these specimens were actually collected 

 within the limits of Athabaska district is an open question, as no defi- 

 nite localities are given, 



« Trans. Ent. Soc. London, Pt. .S, 1903, p. 241. 



6Rept. Nat. Hist. Collections in Alaska, Pt. 4, 1887, p. 328. 



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



fl Lepidoptera, Rhopaloceres and Heteroceres, 1872, p. 133. 



