1921] NATURAL SCIENCES OF PHILADELPHIA. 19 



SCYTHRIDAE. 

 Scythris magnatella Biisck. ^ 



Larvae in webs on fireweed {Chamaenerion angustifolium) , imagoes 

 August 5. 

 Scythris impositella Zoller. 



Glacier Park Station, July 29. Mines, presumably of this spe- 

 cies, were observed on Aster and on Arnica sp. 

 Scjrthris eboracensis Zeller. 



Two Medicine Lake, July 16; Going-to-the-Sun, July 20-21. 

 Some of these specimens are unusually pale and grayish. 



LYONETIIDAE. 



With the exception of Tischeria heliopsiseUa Chambers, which 

 was a common miner on sunflower near Baring Creek, only one 

 other member of this family was observed, a Bucculatrix feeding 

 on Arnica sp. 



INCURVARIIDAE. 

 Lampronia quieta n. sp. 



Palpi brownish yellow, outer side of labial palpi dark brown; 

 antennae dark brown, face and head brownish yellow. Thorax 

 brown, patagia and a small spot on the middle of the base of the 

 fore wing buff. Fore wing brown, scarcely shining, marked with 

 pale buff spots; a large oblique quadrate spot at basal fourth on 

 dorsum, reaching a little more than halfway across the wing; a 

 large costal spot at two-thirds, concave on its inner side, convex 

 on its outer side, and produced a little along the costa towards apex; 

 a dorsal spot just before tornus, with its inner edge perpendicular 

 to the margin, its outer edge oblique; a narrow elongate spot along 

 termen below apex; costal cilia brown, buff-tipped towards apex, 

 cilia buf! at apex and on termen to the lower end of the buff spot, 

 thence dark brown to the tornus. Hind wings and cilia gray. Legs 

 buff, the two anterior pair with fuscous shading. Expanse, 18 

 mm. 



Type ( 9 ) , Canyon Creek, 5500 feet, July 23 ; resting on a rock 

 near the water. 



Nearest to tayloreUa Kearf., but without the purple and coppery 

 luster of that species, 



Lampronia obscuromaculata n. sp. 



Palpi gray, second segment of labial palpi white above; antennae 

 gray, white scaled toward base, cilia of the male 1 ; head with gray 

 and whitish hairs intermixed. Fore wings shining very pale gray, 

 with a few scattered fuscous scales, base of costa fuscous; marked 



