10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75 



toward apex; all the larger fuscous markings more or less margined 

 by black scales; ocelloid patch obscure, whitish ocherous; cilia ashy 

 fuscous with two or three obscure white dashes below apex; veins 3, 

 4, and 5 not approximate at termen; termen slanting and very slightly 

 concave. Hind wing smoky fuscous; cilia concolorous, with a dark 

 basal band and the tips of the scales white. 



Alar expanse. — 27 mm. 



Type. — In collection Barnes. 



Paratype. — Cat. No. 41207, U.S.N.M., also in American Museum. 



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



Food plant. — Unknown. 



Described from male type and two male paratypes from the type 

 locality ("June 24-30")- These specimens I had previously deter- 

 mined as sJiastana Walsingham (see above) and the genitaha of the 

 type I had figured under that name in my revision of the Eucosminae 

 (fig. 221). I have also before me three males from Warner Moun- 

 tains, "three miles east of Davis Creek," Modoc County, Calif. ("24- 

 31 July 1922, 5,500 feet, A. W. Lindsey, collector"), which I take to 

 be merely a color variety. They have similar genitalia and pattern 

 but are considerably paler, the ground color being distinctly white. 

 I should not name this variety at all were it not for the fact that its 

 genitalia are about twice the size of those of typical tahoensis. If the 

 species is a stem borer this may not be significant; but in the absence 

 of intergrades and any information on larvae or life history it seems 

 advisible to keep the two forms separate. 



EUCOSMA NUNTIA, new species 



Figure 15 



A pale whitish gray species with a faint white transverse line from 

 tornus to costa just beyond middle. 



Palpus white, faintly dusted on outer side with fuscous. Antenna 

 white, annulated with light brown. Face and head white. Thorax 

 and fore wing white, finely dusted with ocherous fuscous, giving them 

 a whitish (or cream) gray color; costa of fore wing faintly striated 

 with white from base to apex; ocelloid patch obscure, consisting of 

 three short black dashes or dots on a whitish field; from the latter 

 a thin straight white line to the white strigulae of mid costa; cilia 

 pale ocherous fuscous and white, finely dusted with black ; underside 

 of wing somewhat darker, finely and evenly dusted with fuscous. 

 Hind wing but slightly darker than fore wing, pale fuscous; cilia 

 white with a dark basal band. 



Male genitaha of type figured. 



Alar expanse. — 19-23 mm. 



Type. — In collection Barnes. 



Paratype. — Cat. No. 41208, U.S.N.M., also in collection Barnes. 



