32 AMERICAN LEPIDOPTERA. 



Eiicosnia sosana sp. nov. 



Expanse 16-19 mm. 



Head, antenna and palpi pale clay-yellow, latter dusted with a shade darker 

 externally; thorax clay-yellow, atomized with pale fuscous; abdomen and legs 

 clay-yellow, latter handed and dusted with brown. 



Forewing: clay-yellow, with basal area, one broad fascia and a shade on upper 

 third of wing of a light olivaceous fuscous. This darker color is nearly uniform 

 wherever it occurs, and is composed of olivaceous fuscous scales, with clay-yellow 

 tips, giving an atomized or powdered appearance. The upper third of wing is of 

 this darker shade, interrupted on the inner half of costa by five or six clay-yellow 

 geminate dashes, those close to base are somewhat obscuie, and in the outer half 

 of costa by four strongly-defined clay-yellow geminate dashes; the dark shade 

 between these outer dashes are somewhat ochreous below the costa ; the outer 

 dash of the second pair and inner dash of the third pair join together below costa 

 and form a V, the lower point is tipped with golden-metallic scales; the outer 

 dash of the third pair is prolonged beneath the fouith pair, and its lower half is 

 leaden-metallic. From the middle of the dorsal margin a broad fascia of clay- 

 yellow, slightly oblique, extends to upper third of wing, it is broader on dorsum 

 than above, a horizontal line of yellow leaves it near upper end and lies below 

 the first and second pair of geminate streaks in outer half of costa. The ocellic 

 spot is large, clay-yellow scales, slightly shining, with in some specimens a hori- 

 zontal black dash in middle and another near upper edge, two black dots occur 

 on before the upper end of ocellic spot in other specimens. Cilia fuscous out- 

 wardly, speckled within. 



Hind wing: light brownish-fuscous, cilia whitish fuscous; underside grayish, 

 shaded with light brownish-fuscous below costa. 



Underside forewing: smoky brown, costal spots repeated, yellowish before ter- 

 men, with very dark terminal line. 



Eight specimens ; Stockton, Utah, May 23d to Aug. 2d ; col- 

 lected by Tom Spalding. 



Eucosma totana sp. nov. 



Expanse 14-19 mm. 



Head, palpi, antenna, thorax, abdomen and legs ashy-white, outside of palpi 

 shaded with pale fuscous, and dots of the same color on patagia, legs banded and 

 powdered with pale fuscous. 



Forewing: ashy-gray, lightly marked with brown shades, varying from light 

 brown to blackish-brown. There is a dark shade through middle of wing, angu- 

 lated at inner third obliquely inward toward dorsum, and forming the outer 

 edge of basal area, but only defined in the middle of wing; a few dark dots con- 

 nect this shade along middle of wing with a similar dark shade between end of 

 cell and termen above middle of wing. The ocellic spot is concolorous, but with 

 shining scales on sides and two or three black horizontal lines; before this spot 

 on dorsum, and outlining it internally, is a small triangular dark spot. On the 

 male costal fold are four or five dark dashes, between the fold and middle, two 

 or three dark lines, one of which is as long as a third the width of wing ; beyond 

 the middle are three large dark spots, between each two a slender dark line; an 

 oblique dark dash is in the apex. There are several dark dots below fold on 

 internal third. Cilia white, dotted with gray internally and externally. 



