TUt: CANADIAN ENTOMOLOGIST. 89 



PRELIMIXARY IJ5T OF THE MACRO-LEPIDOPTKRA OF 



ALBERTA, N.-W.T. 



BY F. H. WOLLEY DOD, MILLARVILLE, ALBERTA. 

 (Continued from page 54.) 



Geomktrid^. 

 [Note. — -The generic names are as used by Rev. G. W. Taylor,] 



452. Rachela Bruceata, Hulst. — Not observed previous to 1898. 



It appeared in millions in 1902, and in the following year was still more 



abundant. In those two years hundieds of acres of Populus tremuloides 



were completely denuded by the larvae during June. It appeared to be 



aided in its depredations by a Tortrix, the name of which I have not yet 



discovered, but subsequent observation brings me ,to believe that by far 



the greater part of the denudation was caused by this species. I rarely 

 saw more than eight or ten acres cleared in one patch, usually much less, 

 but its ravages extended over a large tract of country, some twenty square 

 miles, between Fish and Sheep Creeks. Beyond that I did not travel 

 where there were poplars in any quantity. Salix was also attacked, but 

 not so vigorously. The moths appeared in early October, and the apterous 

 females could be found in numbers hanging with the males on the leafless 

 twigs of poplars after dark. The males flew freely in the daytime, but in 

 far greater numbers at dusk. Both the Rev. G.W.Taylor and Dr. Fletcher 

 have seen the species. 



453. Talledega tnontafiata. Pack. — Two ^^ 6 ^.nd a 9 . June 23rd 

 to 28th, 1S98 and 1904. Occurs at both the Billing's Mill locality and on 

 Pine Creek. 



454. Eupithecia {Tephroclystis) Regina, Taylor (MSS.) — Fairly 

 common some years, flying at dusk. End June and July. 



4^5. E- borealis, Hulst? — Mr. Taylor has a specimen from me, 

 dated July 21st, 1901, on which he comments: "A prairie species, and in 

 Mr. Hanham's collection from Winnipeg, bearing Hulst's label borealis, 

 but does not agree with the description." I am not aware that I have 

 taken another specimen of the same species. 



456. E. Casloata, Dyar (Proc. U.S. Nat. Mus., XXVII., 891).— 

 Described from two specimens taken at Kaslo. Eight specimens are at 

 present in my series, and I fancy the species is not altogether rare here. 

 July to middle of August. 



March, 1906 



