106 THE CANADIAN ENTOMOLOGIST. 



antemedial line obsolete on costal half, white, nearly straight and oblique 

 from median nervure to inner margin ; medial area black-brown from cell 

 to inner margin ; claviform absent ; orbicular with faint whitish annulus, 

 with gray centre, slightly defined by black above, round ; reniform with 

 whitish annulus, its inner edge straight and oblique, defined on each side 

 by black, its outer concave at middle with some black in upper part and 

 beyond middle ; a U-shaped silvery-white mark filled in with gray below 

 median nervure, its inner arm bent inwards ; postmedial line double, filled 

 in with whitish, slightly excurved below costa, oblique to vein 5, then 

 slightly incurved ; subterminal line absent ; a terminal series of slight, 

 black lunules, defined on inner side by gray lunules; cilia gray, mixed 

 with brown and with series of blackish spots. Hind wing orange-yellow ; 

 some brown suffusion at base ; a slight discoidal striga ; the terminal area 

 black-brown, narrowing to tornus ; cilia chequered brown and white, and 

 with brown line through them ; the under side with the costal area slightly 

 irrorated with brown, traces of a curved postmedial line. 



Alberta, 1907, Brobokton Creek, 6 (^ , 2 ? type. U. S. A., Wash- 

 ington Forest Reserve, 1907, Early Winter Creek, i (^ . Expanse, 



34-40 mm. 



A specimen of this species was identified by Dr. Ottolengui as ^P. 

 diasema, Boisd.; this, however, which is found in N. Europe and Asia, and 

 in America, from Greenland to Labrador, has the head, thorax and fore 

 wing much more strongly tinged with red-brown, the last with the ante- 

 medial line excurved below the cell, the stigma more V-shaped, with a 

 slight tail or point beyond its lower extremity ; the hind wing with the 

 terminal area reddish-brown. The record from Colorado probably refers 

 to the new species. 



2528. Plusia saccetii, Grote. 



Alberta, 1907, Mt. Athabasca, i S- 



2532. Plus la p a rilis , H ii b n . 



Alberta, 1907, Mt. Athabasca, 6 (^ 's ; Wilcox Pass, i ^. 



2535. Plusia alticola, Wlk. 



Alberta, Mt. Assiniboine, 1 ?; 1907, Wilcox Pass, 2 (^ 's; Brobokton 

 Creek, i $ \ Brazeau Creek, 19. B. C, 1904, Kicking Horse Pass, 

 Hector, i $ . 



The type was taken by Lord Derby in the Canadian Rockies in 1845, 

 and is quite distinct from the European deverge?is, Hiibn. The record 

 from Colorado probably refers to this species. 



