NO. 1488. B UTTERFLIES OF BRITISH AMERICA— GARY. 451 



ANOSIA PLEXIPPUS (Linnaus). 



I saw one of these butterflies in the poplar forest back of Fort Provi- 

 dence, July 3, 1903, but did not capture it. 



This common species seems to be rare in the north, as no previous 

 observers have recorded it from Mackenzie. Scudder records it from 

 the "Athabasca country" on the authority of Geffcken," but it is not 

 mentioned by Strecker in his list of the northern collection which he 

 received from Geii'cken.''' 



A. plexipjpus occurs in portions of Alaska, and is common in the 

 southern provinces of Canada. 



INCISALIA IROIDES (Boisduval). 



A common ])utterfly in the forest region. I took live at FortChipe- 

 wyan, Athabaska, June 3, 1903, and others on the Smith Portage, June 

 13. In 1904, Mr. Preble secured a specimen at Fort Good Hope, June 

 22. Apparently it has been overlooked by former observers in the 

 Athabaska-Mackenzie region. 



In Alberta the species was taken at Edmonton, and observed along 

 the Athabaska trail between that point and Athabaska Landing. It 

 was flying abundantl}^ in a forest of Banksian pine along Towattinow 

 Creek, some 20 miles south of the Landing, May 14, 1903. 



EPIDEMIA DORCAS (Kirby). 



Apparently uncommon. One was seen at Fort Chipewyan, June 3, 

 1903, and a fresh specimen taken in the Nahanni Mountains, ,]\\\y 13. 



E. dofcas occurs in the southern provinces, and also in Alaska. The 

 type locality is Cumberland House, Saskatchewan (latitude SI"-). 



CUPIDO SiEPIOLUS (Boisduval). 



Several were seen July 1, 1903, in a marsh bordering Great Slave 

 Lake, near Hay River post. At Fort Providence, a little later in the 

 month, ssepiolus was common in an open pasture just back of the 

 Catholic Mission. Four males were taken, two at each locality. Mr. 

 Preble collected another male example near the mouth of the North 

 Nahanni River, July 25, 1904. 



Doctor Fletcher has recorded this species from the Devil's Portage, 

 Liard River (126° 10' W.), where R. G. McConnell, of the Canadian 

 Geological Survey, secured specimens in 1888.^ 



"Butterflies of Eastern United States and Canada, I, 1889, p. 728. 



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



cAnn. Kept. Can. Geol. Surv., Ill (new ser.), Pt. 1, App. IV, (1889), p. 231 B. 



Proc. N. M. vol. xxxi— 06 30 



