438 



light brown dorsal line and unusually short, scarcely longer than third feather 

 of secondaries. Thorax yellowish in front in darker specimens and slightly 

 brownish above in the lighter ones. 



Primaries clear pale yellow in the lightest specimens, with some brown 

 scales near base, sometimes a small brown dot a short distance before base of 

 cleft, and sometimes a brown subcostal shade which meets the costa in the first 

 lobe. In the type series these wings have a pale yellowish or grayish yellow 

 costal band from base to a point opposite base of cleft, in which the 

 extreme costal margin bears some brown scales. Behind this the entire wing 

 is clothed with brownish gray mixed with very pale yellowish scales, becoming 

 more whitish toward inner margin. The spot before the cleft is faintly marked, 

 continued slightly toward costa to form a transverse shade. Costal fringes 

 on first lobe yellowish, others dark grayish. Secondaries and their fringes 

 brownish gray, in the pale specimens appearing dark in contrast to the yellow 

 primaries. Expanse 17-20 mm. 



Holotype, allotype and 11 paratypes, 6 <J 5 9 , from Tuolumne Meadows, 

 Tuolumne Co., Cal., July and Aug. and 7 paratypes, S, Deer Park Springs, 

 Lake Tahoe, Cal., June and July. Of the first lot there are a paratype S in 

 the Fernald collection and 2 paratypes, S and 9 , U. S. N. M., No. 23483. Of 

 the second one paratype is in the Cambridge Museum and one in coll. Meyrick. 

 The remaining types are in coll. Barnes. 



We have also specimens from Colo., Sept., Wash., July, and B. C, 

 July and August. 



The Hfe history is unknown. 



53. OlDAEMATOPHORUS I'ERDITUS n. sp. PI. XLVI, fig. 19. Pi. LTI, 



fig. 10. 



Head dark brown, yellowish white between antennae. Antennae dark 

 with a slender line of whitish above. Palpi very slender, moderately long, 

 oblique, whitish. Legs whitish, the first two pairs brownish gray within ex- 

 cept toward end of tarsi. Thorax pale yellowish white, the patagia touched 

 with light brown. Abdomen similar to thorax, witli some gray scales, and 

 apparently a faint brown dorsal stripe. 



Costa of primaries very narrowly yellowish, sometimes obscured toward 

 base. Just inside of this line the wing is brownish gray, becoming gradually 

 paler toward inner margin with an increasing admixture of whitish scales. 

 Veins sometimes darker in second lobe. Fringes brownish gray with paler bases, 

 on costa yellowish. Secondaries and their fringes brownish gray. Expan'^e 

 19-25 mm. 



Types from Chiumey Gulch, Golden, Colo., Aug. (Oslar). 



Holot.\pe (? , allotype and one paratype 9 coll. Barnes. 



Paratype 9 U. S. N. M. No. 23484. 



We have also a single specimen each from Lonia Linda, San 

 Bernardino Co., Mar., and San Diego, Cal., Apr., and a small series 



