THE CANADIAN ENTOMOLOGIST. 183 



47. This is the form described by Messrs. Cook and Watson as 

 Incisaiia polios {C\^. Ent., XXXIX, 202, June, 1907), and some of my 

 few specimens agree well with their figures on Plate 5 (July). It is stated 

 after the description that ''Polios most nearly resembles Mossii, Hy. Edw., 

 from which it differs in the presence of the hoary margin of the primaries, 

 the broad hoary area of the secondaries, . . . and in the colours of 

 the fringe." And further: "Undoubtedly polios has been confused by 

 collectors with incs^ Henrici or Mossii^'' and comparisons are made with 

 these species. Dr. Skinner, in Ent. News, XVIII, 327, says : " I do not 



consider it specifically distinct from T. Mossii The species 



extends across the continent from the Atlantic to the Pacific, .... 

 and the type ((^ ,/. <?., of Mossii) comes from Esquimault, V. I." My 

 dates are from May 5th to June 29th. The latter date is exceptionally 

 late, but the specimens are in fine condition. 



50. T. titus, Fab. — Red Deer River, July 25th and 26th, 1907, not 

 rare. 



55. I have described this form as a^'ethusa in Can. Ent., XXXIX, 

 169, May, 1907. It appears to be somewhat local, as I have not so far 

 met with it elsewhere than in the two localities mentioned under the 

 description. A few days after taking a series near Billings's Mill, I spent 

 an afternoon hunting closely for it over what appeared to be precisely 

 similar ground ten miles distant, without finding a specimen. Dates of 

 capture, July 5th to 20th. Dr. Skinner writes to me : " I consider it a 

 variety oi phlcp.as, and nearer to that than var. Amencana.'" He had previ- 

 ously listed the form 7\.% phlceas jn Sup. i, page 18, of his Catalogue. Mrs. 

 NichoU came across it far north of Laggan, and I am indebted to her for 

 three pairs, labelled '• Brobokton Creek, July 5th- 13th, Aug. 12th, 13th," 

 and " Brazeau Creek, July I6th." One % is my arethusa exactly, but 

 some of the rest approximate the eastern form very closely, one % being 

 inseparable therefrom. Mrs. Nicholl took other specimens, and SirGiorge 

 Hampson says they are like a form he took in Norway. I certainly 

 have a very similar male labelled " Norway sept.," which is the only 

 European specimen sent me by Bang Haas as hypophlceas. 



56. Chrysophanus S?iowi, Edw. — I found this, somewhat sparingly, 

 on Mts. Fairview and Piran, at Laggan, on July 19th and 2olh, 1904, 

 chiefly on the same ground as A. Alberta, from about b^,ooo feet up, but 

 occasionally on bare slides a little below the timber line. Mrs. Nicholl 

 writes : " A high' mountaineer, never seen below 7,000 feet. Widely 



