fHfe CANADIAN ENTOMOLOGist. 173 



PRELIMINARY LIST OF THE MACRO-LEPIDOPTERA OF 



ALBERTA, N.-W. T. 



BY F. H. WOLLEY DOD, MILLARVILLE, ALTA., N.-W. T. 



(Continued from page 156.) 



309. M. Dodii, Smith. — (Can. Ent., XXXVL, 152, June, 1904) 

 Described from Calgary and from Bullion Park, Colo. The type is a 

 Calgary specimen at Rutger's College, and I have two ^ co-types. The 



description says : " Resembling Taconia and rugosa Rjigosa 



is a smaller, less irrorate, more sharply defined species, with ordinary 

 spots of different form, s. t. line hardly indented, costal region gray, and 

 colour of secondaries more decidedly yellow." A year's endeavour to 

 procure rugosa for comparison has elicited a single ^ , in i)erfect condi- 

 tion, through the kindness of Dr. Fletcher. The specimen comes from 

 Mr. C. H. Young, of Hurdman's Bridge, which I believe is within about 

 12 miles of Ottawa. It is hardly below the average size ot Dodii,hnt 

 almost entirely lacks the rusty red-brown suffusion so characteristic in 

 that species. As it is reasonable to suspect similar variation in discoidal 

 spots to Dodii, I will not compare them. There is practically no trace of 

 the W in. s. t. line, rather prominent and constant in Dodit, and unlike 

 that species, this line is preceded by black dentate points. The basal 

 half of costal region is gray, which is never the case in Dodii, and there is 

 a distinct black basal streak reaching to t. a. line, of which the new species 

 never shows any trace whatever. The secondaries in Dodii vary much in 

 shade, but most of them are quite as yellowish as in my rugosa. Pre" 

 suming that this Ottawa specimen is not altogether off type, I feel pretty 

 safe in saying what I have long suspected, viz.: that Dr. Holland's figure 

 of rugosa is Dodii, which, on the whole, seems more likely to be confused 

 with Tacotna. Fairly common at light and treacle. June and July. 



310. M. lilacina, Herv. — Common. July to middle August. A 

 widely variable species, which I have for years been trying to separate 

 into two. My series at present consists of 72 specimens, about one- 

 third 9 9 > and there seems after all to be every intergrade betv/een the 

 two extreme forms. One form is of a dirty, bluish-gray, with rusty shad- 

 ings above the median vein. The maculation is very indistinct, and there 

 are no contrasts, even fresh specimens often having a very sordid appear- 

 ance. The other extreme form has marked contrasts between the light 

 and dark shades. Such specimens sometimes have the orbicular and 

 median and sub-median veins centrally, very conspicuously whitish, the 



May, 1905, 



