NORTH AMERICAN EUCOSMINAE. 113 



white; the apical fuscous spot more conspicuous than the rest and 

 broad as long; ocellar area and the space between outer dorsal and 

 basal patches the only conspicuously whitish areas ; cilia ashy fuscous 

 with little or no admixture of white, especially from above tornus 

 to apex. Hind wings smoky fuscous, cilia concolorous. 



Male genitalia of type figured. 



Alar expanse. — 15-19.5 mm. 



Type. — In collection Barnes. 



Paratypes. — Cat. No. 24811, U.S.N.M. Also in collection Barnes. 



Type locality. — Deer Park Springs, Lake Tahoe, California. 



Food plant. — ^Unknown. 



Described from three males from Doctor Barnes' material, labeled 

 "Deer Park Springs, Lake Tahoe, July 1-7" and "July 8-15." 

 Closest to shastana Walsingham from which it is chiefly distinguished 

 by its much smaller size. The genitalia are only about half the size 

 of those of Walsingham species. 



76. EUCOSMA SHASTANA (Walsingham). 



(Pig. 221.) 



Paedisca shastana AValsingham, Illus. Lepid. Heter. Brit. Mus., vol. 4, 1879, 



p. 46. 

 Fjucosma shastana Fernald, in Dyar List N. Amer. Lepid., no. 5109, 1903. — • 



Barnes and McDunnough, Check List Lepid. Bor. Amer.. no. 7045, 1917. 



The only specimens I have seen that answer to Walsingham's 

 description are a series from Doctor Barnes' collection taken at Deer 

 Park Springs, Lake Tahoe, California. Eepresentatives of these are 

 in his collection and in the National Collection. 



Male genitalia figured from specimen in National Collection. 



Ala?' expanse. — 27 mm. 



Type. — In British Museum. 



Type locality. — Mount Shasta, California. 



Food plant. — Unknown. 



77. EUCOSMA PALPANA (Walsingham). 



(Fig. 225.) 



Paedisca palpana Walsingham, Illus. Lepid. Heter. Brit. Mus., vol. 4, 1S79, 



p. 54. 

 Eucosma palpana Feenald, in Dyar List N. Amer. Lepid., no. 5112, 1903. — 



Barnes and McDunnough, Check List Lepid. Bor. Amer. no. 6947, 1917. 



Male genitalia figured from cotype in National Collection. 

 Represented also by two specimens from California in the Ameri- 

 can Museum of Natural History. 

 Alar expanse. — 14 mm. 

 Type. — In British Museum. 

 Tyjje locality. — Mount Shasta, California. 

 Food plant. — Unknown. 



