OF WASHINGTON. 229 



Four examples, July i, 7, and 16. All are a Itttle smaller than 

 Lord Walsingham's measurements, c? 26, ? 27-30 mm. ; the 

 head is white, not fawn brown, and there is no pink suffusion. 

 But the description applies so well otherwise that I cannot think 

 them specifically distinct. 



Eucosma gilletteana, n. sp. 



Allied to bolanderana Wals., but the wings more elongate and 

 the markings likewise more drawn out and less serpentine. Also 

 near agassizii Robs., but the serpentine streak is obliquely 

 separated from the basal lanceolate portion. 



Light brown, top of head, ends of patagia and center of thorax white. 

 A lanceolate white streak at base of fore wing, not reaching middle; be 

 yond it a serpentine bar not touching costa at basal third nor outer margin 

 above anal angle, but almost doing so; a slightly oblique costa*! spot at 

 outer third and an apical one slightly oblique in the reverse direction; a 

 small, irregularly double spot on outer margin and fringe ; a streak along 

 interior margin, nearly divided at basal third. Hind wings grayish, fringe 

 lighter. Expanse, 16-24 mm - 



One d", June 16. I have also three other d"c^ and one ? col 

 lected in Colorado by Prof. C. P. Gillette. 



Type. No. 6737, U. S. National Museum. 

 Eucosma (?) edemoidana, n. sp. 



Resembles Lord Walsingham's figure of Semasia bucepha- 

 loides, but it is smaller, the head and thorax marked in yellow 

 and brown. 



Palpi ocherous brown; head light ocher, brown at the sides; thorax 

 reddish brown, ocherous on the disk before. Fore wing gray, finely 

 transversely lined in dark gray; a straight heavier line at basal third de 

 fines the darker basal portion, of which the costa at base is ocherous 

 brown; middle of wing lighter, still crossed by the fine, strigose, trans 

 verse lines; beyond this the transverse lines are again heavier, edged by 

 pale scales; terminal fourth of wing reddish and ocher, contrasting, nar 

 rowed toward internal margin, bordered basallj' by pale gray scales and 

 crossed by a line of the same color with a few blackish scales centrally. 

 A dark terminal line; fringe ocherous, mixed with gray. Hind wing 

 blackish, fringe pale, interlined with gray. Expanse, 19 mm. 



One 9, July 19. I have another 9 specimen from Las Vegas 

 Hot Springs, New Mexico. (Schwarz and Barber.) 



Type. No. 6740, U. S. National Museum. 

 5201. Thiodia obliterana Wals. 



Nine specimens, bred from larvae in the roots of Artemisia. 

 The specimens vary in the amount of ocherous shading on the 

 costal half of wings. In some this is quite pronounced, in others 

 fainter, but never absent as in Lord Walsingham's figure. Ap- 



