NORTH AMERICAN EUCOSMINAE. 257 



Alar expanse. — 30-31 mm, 



Type.~C2i,t. No. 24860, U.S.N.M. 



Paratypes. — In American Museum and collection Barnes. 



Type locality. — Siskiyou County, California. 



Food plant. — Unknown. 



Described from male type from the type locality and one male 

 paratype from Deer Park Springs, Lake Tahoe, California (" July 

 8-15"), and 1 female paratype from Cloud Cap Inn, Mount Hood, 

 Oregon. 



A California and Oregon variety of stygiaTia. Probably not 

 worthy of a name, but apparently a local race. I am giving names 

 to the varieties in this genus to prevent confusion of such variable 

 species as stygiana, roessleri, and asphodelanu, possibly themselves 

 also varieties of a single variable species but again as likely as not 

 distinct species with different food plants. Until all are reared it 

 would be unwise to do any lumping. 



■ 6. HYSTKICOPHORA ROESSLERI (Zeller). 



(Fig. 418.) 



Orapholitha roessleri Zelleb, Verh. Zool.-bot. Ges, Wien, vol. 25, 1875, p. 291. 

 Thiodia roessleri Fernald, in Dyar List N. Amer. Lepid., no. 5170, 1903. 

 Eucosma roessleri Barnes and McDunnough, Check List Lepid, Bor. Amer., 

 no. 7089, 1917. 



A sordid whitish ochreous species suffused with dirty brownish 

 ochreous and more or less spotted and streaked with blackish or 

 grayish fuscous. 



Male genitalia figured from specimen in National Collection from 

 Sonoma County, California ("A. H. VacheU, May 10 to 25"). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes : California, Oregon. 



Alar expanse. — 26-31 mm. 



Type. — In collection — Unknown. 



Type locality. — ^" North America." 



Food plants. — Unknown. 



7, HYSTRICOPHORA ASPHODELANA (Kearfott). ' 



Thiodia asphodelana Keaefott, Trans. Amer. Ent. Soc, vol. 33, 1907, p. 42. 

 Eucosma asphodelana Barnes and McDunnough, Check List Lepid. Bor. Amer.. 

 no. 7105, 1917. 



A somewhat variable whitish gray species with a slight brownish 

 or semimetallic fuscous suffusion over dorsal half of fore wing and 

 sometimes a patch of the same color above dorsal margin beyond 

 middle. 



There is considerable difference in specimens from different locali- 

 ties suggesting the possibility of different local races. I am, however. 



