THE CANADIAN ENTOMOLOGIST. 153 



to mifiuscula, I am willing to accept Prof. Smith's word. As to tofisa, I 

 have seen the type in the British Museum, a female from Nevada, and am 

 inclined to agree with Sir George Hampson in considering it distinct from 

 the Calgary species which he figures as subju?icta, and which is the form 

 that has for years stood in my collection as such, and was previously listed 

 by me as tonsa. In the Washington Museum are male and female types 

 subjuncta from Glenwood Springs, Colo., a female co-type '• Colo.," and a 

 pair of co-types from Calgary. The female type and the other Colo, 

 female appeared to me to be tonsa. The variation puzzled me a bit, but 

 I have come to the conclusion that the male type and Calgary male 

 co-type, which are alike, must be tonsa also. There were also in the 

 collection Kaslo specimens, and a female from Williams, Ariz., which 

 agreed with the female type. 



I possess as tonsa, females from Kaslo and Prescott, Ariz., from which 

 latter locality there is one in the British Museum, agreeing with the type. 

 This is dark gray, suffused, blackish centrally, with spots outlined in black, 

 and claviform well defined, moderate in size. Kaslo and Arizona speci- 

 mens differ principally only in being slightly brown-tinged. But, with one 

 exception, all my Calgary series {subjuncta Hampson, probably on my 

 authority) are very much paler, scarcely suffused, reddish-brown tinged, 

 and the spots are not distinctly outlined in black. The claviform in none 

 is distinctly outlined, is very small where discernible, but as often as not 

 entirely lacking. Similar Calgary specimens are at Washington. They 

 may grade through to subjuncta Smith, = tofisa Grote, but I was unable 

 to decide. From my own material I should not suspect it. Subjuncta 

 Hampson, which is also the subjuncta of Holland's figure, is very near 

 semicaiia Walker, which is the species known in eastern collections as 

 hausta Grote, of which I have not yet seen the type. Hampson places 

 them next one another in the genus Oligia Hubn. Semicana is shorter- 

 winged, and has them proportionately a little broader near the base. He 

 separates them in the table by subjuncta having the terminal area darker 

 than subterminal, as against "not darker" in semicana. This seemed 

 correct, and I noticed that semicafia had a more cream coloured ground. 

 But this scarcely holds in my own series from New Brighton and Oak 

 Station, Pa., in which the diffuse pale s. t. line is crowded closer up to 

 the hind margin (termen) than in the Calgary form, though such margin as 

 it leaves is dark. Barring that and the wing form, my two series are 

 exactly alike. The locality of type semicana is known merely as 

 ^' U. S. A." 



