Lepidoptera 5 1 



One of the specimens taken between latitudes 67 25' and 66 30', long. 

 141 is shown on Plate III, fig. 3, together with the underside of a specimen 

 from Nansen creek, Yukon Territory (fig. 4). Barnes and McDunnough in 

 their "Contributions," vol. Ill, No. 2, Plate VI, figure a male and a female of 

 arctica from Chatanika, Alaska. 



Pieris napi pseudobryoniae Verity. 



Pieris napi pseudobryonice Verity: Rhopalocera Palaearctica, 146, 1908. 



Specimens of this form in the Ottawa collection are from the following 

 localities: Bartlett bay, off Glacier bay, Alaska, June 10, 1907, 2 males, 1 female 

 (D. H. Nelles); Alaska, 1894, 2 females (Ogilvie). A male and a female from 

 Bartlett bay are shown on Plate III, figs. 1 and 2. 



In the Ottawa collection there is a specimen of napi taken at Dease lake, 

 northern British Columbia, June 17, 1887 (G. M. Dawson). Fletcher 1 recorded 

 this as venosa Scudd. This latter form was described from California. I have 

 recently compared the specimen from Dease lake with Edwards' figure of 

 oleracea-hiemalis on Plate 2, Vol. 1, Papilio, and while the veins are more heavily 

 lined, it otherwise is similar to the figure referred to. It is certainly different 

 from specimens of venosa from California in the Canadian National collection. 

 Long series of such northern forms are required before one can arrive at any 

 satisfactory decision regarding their status. 



Genus Euchloe Hbn. 

 Euchloe creusa Dbldy. 

 Anthocharis creusa Dbldy. : Gen. Diur. Lep., pi. 7, 1847. 



Three specimens from northern localities are in the Canadian National 

 collection, namely from Felly river, Yukon Territory (W. Ogilvie), and between 

 latitudes 67 25' and 66 30', June 12-15, 1912 (D. D. Cairnes). 



The specimen from Pelly river was named A. hyantis some years ago by 

 the late Dr. Fletcher. This latter name, however, according to Barnes and 

 McDunnough 2 , should evidently be used for the Californian race of creusa. 



In 1908, Mr. C. H. Young, of the Canadian Geological Survey, found the 

 larvae abundantly at Departure bay, British Columbia, feeding on tower mustard, 

 Arabis glabra (L.) Bernh. Unfortunately he did not make any larval notes, 

 but brought to me on his return to Ottawa a number of the chrysalids, from one 

 .of which a butterfly had emerged and from another a tachinid parasite of the; 

 genus Exorista 3 . The chrysalid is shown on Plate III, fig. 7. 



Euchloe ausonides Bdv. 



Anthocharis ausonides Bdv.: Ann. Soc. Ent. Fr. (2), X, 286, 1852. 



Four northern specimens of this species are in the Canadian National 

 collection taken at the following localities: Telegraph creek, Stikine river, 

 northern British Columbia, May 27, 29, 1887 (G. M. Dawson); Cassiar trail, 

 10 miles west of Dease lake, British Columbia, June 4, 1887 (G. M. Dawson); 

 Pelly river, below Hoole river, Yukon Territory, July 5, 1907 (J. Keele). 



1 Ann. Rep. Geo. Surv. of Canada, 1887. 



2 Cont. Nat. Hist. Lep. N.A., III, 2, 60. 



3 The specimen which was much damaged was submitted to Mr. John D. Tothill, who reported 



that it belonged to the genus Exorista and that it may be E. vulgaris Fall. 



