274 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Head and face sordid white, the former strongly suffused with gray 
above. Thorax and fore wing with sordid white ground color almost 
obliterated by grayish-fuscous suffusion and overlying grayish- 
fuscous scales; extreme base and two or three short, ill-defined, ob- 
lique costal dashes blackish fuscous; on lower fold, nearly to middle 
of wing, a blackish-fuscous longitudinal dash with a few ochreous 
scales mixed; in the cell at middle, a shorter dash followed by an 
ill-defined small spot of the same color; cilia sordid whitish suffused 
with gray and irrorated with blackish-fuscous. Hind wing light 
smoky fuscous; cilia light fuscous tipped with sordid white and with 
a distinct dirty-yellowish basal band. Legs whitish suffused and 
irrorated with blackish fuscous. Abdomen grayish fuscous above, 
sordid white suffused and irrorated with blackish fuscous beneath. 
Male genitalia—Terminal points of harpe as long as thickened 
basal portion. Posterior processes of vinculum long, slender, and 
acutely pointed. Uncus dilated and compressed posteriorly. Aedea- 
gus curved in distal third, with a slender, curved lateral arm for 
attachment of vesica. 
Female genitalia —Ostium protruding, rounded. Signum weak, 
two of the four points poorly developed. 
Alar expanse, 14-16 mm. 
Type—vU.S.N.M. No. 56275. 
Type locality —Pullman, Wash. 
Food plant——Unknown. 
Remarks.—Described from the type male (18-VITI-1930), 1 ¢ 
(5-VITI-1932), and 4 2? @ (27-VII to 4-VITI-1932) paratypes from 
the type locality, all collected by the author. Type and paratypes 
in the United States National Museum. 
The genitalia of this species most closely resemble those of Aroga 
rigidae (Clarke). 
This species is named in honor of my friend and former professor, 
Dr. R. L. Webster, head of the department of zoology, Washington 
State College. 
Family OECOPHORIDAE 
BATIA LUNARIS (Haworth) 
Recurvaria lunaris HawortH, Lepidoptera Britannica, pt. 4, p. 556, 1829. 
In the course of making identifications of moths associated with 
studies on the Dutch elm disease, the apparent similarity between 
English specimens of Batia lunaris (Haworth) and a series of two 
males and three females from the State of Washington was noted. 
Further investigation and a comparison of the male genitalia of these 
with the English specimens and other European material proved 
them to be identical. 
