32 



starting from the costa before the apex, extends inward more 

 obliquely than the outer margin, but does not reach the fissure. 

 This line is widest on the costa, tapering to a point inwardly, and 

 is darker at its lower end. Fringes white within the fissure, with 

 a cinereous line near their bases, shaded with fuscous at the 

 anal angle. Hind wings pale cinereous; fringes slightly darker 

 towards the end of the feathers. 



Habitat. Arctic America. Early stages and food plant un- 

 known. 



PLATYPTILIA ADUSTA. 



Platyptilus adustus Wlsm., Pter, Cal. and Ore., p. 5, Plate I., fig. 4 

 (1880). 



Expanse of wings, 23 mm. Head, frontal tuft, thorax and 

 abdomen fawn color, with a brownish tinge. Legs pale fawn 

 color, with the feet and anterior parts of the tibiae slightly paler. 



Fore wings fawn color, somewhat streaked with a paler tint; 

 the costa much darker. Fringes but little paler than the wings, 

 but with a fine brown basal line. Hind wings fawn color, the 

 first and second feathers slightly darker than the fore wings. 

 ' Habitat. California. Early stages and food plant unknown. 



PLATYPTILIA ALBICILIATA. 



Platyptilus albiciliatus Wlsm., Pter. Cal. and Ore., p. 17, Plate I., fig. 13 

 (1880). 



Expanse of wings, 24 mm. Head cinnamon brown ; frontal 

 tuft short. Thorax grayish brown. Hind legs cinereous ; feet 

 and spurs paler. 



Fore wings cinnamon brown, with a slight grayish tinge on the 

 costa and outer margin. Fringes whitish except at the base, 

 where they are of the same color as the wing. Hind wings pale 

 brown, with the fringes paler at the base. 



Habitat. California. Early stages and food plant unknown. 



PLATYPTILIA ALBICANS. 

 Platyptilia albicans Fish, Can Ent., Vol. XIII., p. 71 (1881). 



Expanse of wings, 22 mm. Head and thorax cream color, 

 frontal tuft short and blunt. Palpi extending beyond frontal 

 tuft, slightly ascending. Antennae cinnamon brown, dotted above 

 with white. Abdomen ochreous, lighter at base. Legs whitish, 

 anterior and middle femora and tibiae cinnamon brown > sprinkled 



