150 THE, CANADIAN ENTOMOLOGIST. 



by Holland as hasta. The hasta of Hampson's Catalogue is pruiii of 

 Smith and Dyar. I have seen types of neither hasta nor furcif era. 



136. This should be A. grisea Walker, some Alberta specimens 

 agreeing well with Walker's type from "Hudson's Bay." The anal dagger 

 in my series varies somewhat in thickness, but is lacking from none, as it 

 is from Hampson's figure of an Alberta specimen. In the Kootenai List, 

 Dr. Dyar refers the Kaslo form to ^'grisea, var. revellata,'' and implies that 

 Kaslo larvae are like larvae of eastern grisea. Revellata was described 

 from Salida and Glenwood Springs, Colo., and is larger and a little darker 

 than the average run of Calgary specimens, with the anal dagger rather 

 heavier. The male type at Washington is somewhat fuscous and like 

 Kaslo specimens. The female type is bluer and like Vancouver Island 

 specimens in the same collection. A {tv^ of my Calgary examples, if 

 mixed, could probably not be picked out from a Kaslo series, and I have 

 no reason for considering the names to refer to two species. Dyar gives 

 birch as the food-plant of both forms. I have not discovered its food-plant 

 here, but know of no birch within two miles, though the moth is sometimes 

 ■common. 



138. A illita Smith. — Specimens from Aweme, Cartwright and 

 Miniota, Man.; Kaslo, B. C, and Duncans, Vane. Is., are all much like 

 my only Alberta specimen, and all are dark, somewhat suffused, but 

 blue-gray, not brown as in Hampson's figure, which is poor. The species 

 was described from Denver and Glenwood Springs, Colo. Dr. Dyar, in 

 the Kootenai List, calls Kaslo specimens " ivipleta^ var. illitay My 

 impleta, from New Brighton, Pa., New York and Montreal, are paler and 

 less contrastingly marked. I have no actual intergrades, nor did I notice 

 any when at Washington, yet I can see nothing contrary to Dr. Dyar's 

 •opinion, 



139. A, emaculata Smith. — The male type in Prof. Smith's collection 

 is from Calgary, and I have a specimen labelled by myself as almost a 

 dead mate to it. A Calgary specimen very like it is well figured by Sir 

 ■George Hampson. The female type is in the Washington Museum, and 

 is from Easton, Washington. It is very dark and uniform, with no con- 

 trasting shades. These two specimens form the whole of the type 

 material. Hundreds of Calgary specimens have passed through my hands? 

 and I have over forty picked specimens in my series now, but have seen 

 none as evenly dark as the female type. But a Kaslo female in the 

 Washington Museum is extremely like it, though having a trifle more contrast 



