272 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 | 
serrate hook. Aedeagus with one large and several small lateral pro- 
jections. 
Alar expanse, 17 mm. 
Type.—vU.S.N.M. No. 56272. 
Type locality —Quincy, Grant County, Wash. 
Food plant.—Unknown. 
Remarks.—Described from the unique type (18-IV-1930, J. F. G. | 
Clarke). | 
This species cannot be confused with any other described North | 
American species because of its distinctive character. It belongs in | 
the group of Filatima having the curtain scaling from the underside of 
the costa of the hind wing. 
FILATIMA ALBICOSTELLA, new species 
PLATE 27, Figures 1—1b 
Antenna fuscous. Labial palpus white; second segment, except 
upper inner edge, completely suffused with dark fuscous; third seg- 
ment strongly overlaid with dark fuscous. Head and face shining 
whitish, the former irrorated and the latter strongly suffused with 
fuscous. Thorax blackish fuscous with a purple luster. Fore wing 
yellowish white strongly suffused and irrorated with fuscous except 
costal edge and with a purplish luster; in cell, on basal half of 
wing, a few ill-defined, blackish-fuscous streaks; cilia dirty white 
irrorated with blackish fuscous. Hind wing light purplish fuscous, 
darker toward margins; cilia pale fuscous. Legs white heavily over- 
laid with blackish fuscous. Abdomen fuscous above, white suffused 
with fuscous beneath. 
Male genitalia—Upper arm of harpe weak; lower arm longer than 
the upper, strong, with undulating ventral edge. Vinculum broad, 
excavated on posterior edge. Gnathos slightly curved, compressed 
distally. Aedeagus with a long, straight, divergent projection 
laterally. 
Alar expanse, 18-19 mm. 
Type.—U.S.N.M. No. 56273. 
Type locality—Pullman, Wash. 
Food plant—Unknown. 
Remarks.—Described from the type male (21-11-1935) and two 
male paratypes (15-II1-1938, 11-V—1925), all collected by the author. 
Paratypes in the United States National Museum. 
This species belongs in the group of Filatima, which lacks the 
curtain scaling from the underside of the costa of the hind wing. 
