192 THE CANADIAN ENTOMOLOGIST. 



of the North Forks of the Saskatchewan, flying with Beanii, and it was 

 common on all the high mountains north of that." I am indebted to her 

 for a dozen specimens, both sexes. These are all labelled, " Sheep 

 Mountain, July 30th," and agree with ^;7/^^/ from Colorado. Mr. Sanson 

 took it on Sulphur Mountain, Banff, last year (J. Fletcher). 



579. Lyccea aquilo, Bdv. — Rather common on Mt. Piran, from 

 about 6,500 to 7,500 feet, on July 20th, 1904. Not having access 

 to my collection of blues at present, I cannot be sure from memory 

 that it does not occur below and above these limits. Mrs. Nicholl reports 

 it common far north of Laggan last year. In 1904 she did not come 

 across it between Banff and Mt. Assiniboine, but found it locallv abundant 

 near Lake O'Hara and Hector, B. C, and says : " It fairly swarmed on 

 the damp patch at the head of Lake Louise" (July 21st). I bred a specimen 

 on July 29th last from a larva found full-grown, on a rock in sunshine, far 

 above timber, about 7,500 feet, on Mt. Stephen, Field, on July 7th. 



580. L. Scudderii, Edw. — I am convinced that some of the forms 

 referred to under this name in my notes on melissa are distinct from that 

 species. I took a few females at Laggan, near the station, on July i Stb, 1 904, 

 which were quite different from melissa females, and which I associated 

 with males I had taken near Calgary, where it appears to be rare in places 

 where I have collected. In the absence of my collection, I can make no 

 comparisons. 



58 1. Pieris occidentalism Reak. — I take this species here as well as 

 protodice. (Cf. my notes on that species). I have six west British 

 Columbian specimens in my collection. Mrs. Nicholl says in her 1904 

 report : " Var. calyce is the high mountain form of occidentalism and is 

 much paler on the under side, and the veins yellow." A specimen sent 

 me by Dr. Barnes as calyce is, however, the dark form. Holland does not 

 mention calyce^ so I am here in the dark. Moreover, the high mountain 

 specimens I have taken are of the dark form. I saw four or five together 

 on a high bare ridge of Mt. Field, about 7,500 feet, one of which I caught. 

 I also took one at about the same altitude on Mt. Stephen, and several as 

 high as the extreme summit of Piran. I doubt whether it breeds above 

 tree level, and both light and dark forms occur at Calgary. All Calgary 

 specimens bearing dates between April 2 ist and May 22nd are the dark 

 form, and those from June 24th to Aug. 20th — two of these from Gleichen 

 — are lighter, some very light and X^^ protodice. The high mountain dark 

 specimens are all July. There would seem to be two broods on the prairie, 

 the early one the darkest. It is much less scarce than protodice. 



