NORTH AMERICAN EUCOSMINAE. 259 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes : Colorado, Utah, Kansas, Iowa. 

 Alar expanse. — 16-19 mm. 

 Type. — In British Museum. 

 Type locality. — Montana. 

 Food plant. — Unknown. 



10. HYSTRICOPHORA KOKANA (Kearfott). 



EuGOsma kokana Keaefott, Trans Amer. Ent. Soc, vol. 33, 1907, p. 29. — Barnes 

 and McDuNNOUGH, Check List Lepid. Bor. Amer., no. 7006, 1917. 



Eucosma chortaea Meykick, Ent. Mo. Mag., vol. 48, 1912, p. 35. 



I refer this species here only provisionally, as I have seen no speci- 

 mens other than the type, and that is a female. It is distinguished 

 from other species in this genus by the evenly concave dark line 

 along inside of termen of fore wing. 



Alar expatise. — 20 mm. 



Type. — In American Museum. 



Type locality. — Cincinnati, Ohio. 



Food plant. — Unknown. 



11. HYSTRICOPHORA VESTALIANA (Zeller). 



(Fig. 420.) 



GraphoUtha vestaliana Zeixeb, Verh. Zool.-bot. Ges. Wien, vol. 25, 1875, p. 286. 

 Thiodia vestaliana Fernald, in Dyar List N. Amer. Lepid., no. 5171, 1903. 

 Eucosma vestaliana Barnes and MoDunnough, Cheek List Lepid. Bor. Amer., 

 no. 7091, 1917. 



A striking species easily recognized by its white fore and hind 

 wings, the black strigulae on outer half of costa, the fine black line 

 bordering the termen of fore wing and the symmetrical harpes of its 

 genitalia. . 



Male genitalia figured from specimen in National Collection from 

 Boulder, Colorado ("T. D. A. Cockerell, July 29"). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: Colorado, Wyoming, Kansas, 

 Iowa, Florida. 



Alar expanse. — 19-25 mm. 



Type. — In Museum of Comparative Zoology. 



Type locality. — Dallas, Texas. 



Food plant. — Unknown. 



SPECIES REFERABLE ELSEWHERE. 



The following species now listed with the Eucosminae are referable 

 to other groups. The numbers before each are those of the Barnes 

 and McDunnough List and the Dyar Catalogue in the order given. 

 Where only one number is given it is that of the Barnes and McDun- 

 nough List. 



