48 BULLETIN 123, UNITED STATES NATIONAL MUSEUM. 



ochreous-fuscous. It is distinguished from all the TModia having 

 a mid dorsal white patch and a white ocelloid patch on fore wing by 

 the character of the black lines in the ocellus; the latter are three, 

 the middle one very short and the lower one extending downward 

 on each side of the vertical pale bars, forming a thin black half 

 circle like a very much arched eyebrow. The cuculli of the harpes 

 of the genitalia are also broader in proportion to their length than 

 are those in any of the three preceding species. Hind wing dark 

 fuscous; veins 3 and 4 long stalked. 



Male genitalia of type figured. 



Alar expanse. — 17 mm. 



Type. — In collection Barnes. 



Paratypes. — Cat. No. 24791,U.S.N.M. Also in American Museum 

 and collection Barnes. 



Type locality. — Crater Lake, Oregon. 



Food plant. — Unknown. 



Described from male type and one male and two female paratypes 

 labeled " July 24r-31, Crater Lake, Oregon," all from Doctor Barnes' 

 collection. 



24. THIODIA TOMONANA (Kearfott). 

 (Fig. 105.) 



Eucosma tomonana Kearfott, Can. Ent., vol. 39, 1907, p. 78. — Barnes and 



McDuNNOUGH, Check List Lepid. Bor. Amer., no. 6976, 1917. 

 Eucosma Umigena Meyrick, Ent, Mo. Mag., vol. 48, 1912, p. 36. 



Male genitalia figured from cotype in National Collection from 

 Montreal, Canada (" 12-VIII-05"). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes : New Jersey, Pennsylvania, Con- 

 necticut, Quebec. 



Alar expanse. — 12-15 mm. 



Type. — In American Museum. 



Type locality. — Essex County Park, New Jersey. 



Food plant. — Unknown. 



25. THIODIA APACHEANA ( Walsingham) . 

 (Fig. 130.) 



Eemasia apacJieana Walsingham, Trans. Ent. Soc. Lond., 1884, p. 143. 

 Thiodia apacJieana Feknald, in Dyar List N. Amer. Lepid., no. 5199, 1903. 

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

 no. 7099, 1917. 



Veins 3 and 4 of hind wing united. 



Male genitalia figured from specimen in National Collection from 

 Kaslo, British Columbia (" H. G. Dyar, Coll., no, 19945"). 



