120 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



sectorum, fasc. 180, p. 173, 1922. — Gab3)e, in Bryk, Lepidopterorum catalogus, 



pt. 92, p. 340, 1939. 

 Agonoptcryx posticella (Walsingham) Busck, Proc. U. S. Nat. Mus., vol. 35, p. 



190, 1908. 

 Agonopterix posticella (Walsingham) McDunnough, Check list of the Lepidop- 



tera of Canada and the United States of America (Part 2, Microlepidoptera ) , 



No. 8411, 1939. 

 Agnopteryx posticella (Walsingham) Barnes and McDunnough, Check list of the 



Lepidoptera of Boreal America, No. 6469, 1917. 



Labial palpus dull whitish ochreous ; second segment irrorated with 

 fuscous exteriorly ; third segment with apex fuscous and, in a few speci- 

 mens, a faint indication of a fuscous subterminal annulus. Antenna 

 fuscous. Head, thorax, and fore wing dull whitish ochreous; thorax 

 with slight inf uscation ; fore wing irrorated with black and fuscous and 

 suffused with reddish especially toward apex ; on costa at base and on 

 inner angle near base a blackish-fuscous spot; at basal third a black 

 discal spot followed by a similar one at end of cell, the latter frequently 

 obsolete ; on inner margin, before tornus a fuscous blotch not attaining 

 costal half; cilia fuscous with reddish tinge. Hind wing light grayish 

 fuscous; cilia lighter with rosy tinge. Legs pale whitish ochreous 

 heavily overlaid with fuscous except at joints and on posterior tibiae, 

 the latter with faint rosy tinge. Abdomen pale ochreous, suffused with 

 f uscuous above and with a row of more or less confluent spots on each 

 side beneath ; anal tuft usually with rosy tint. 



Male genitalia. — Harpe slender, almost entirely clothed with long 

 hairs; clasper reaching beyond costa, slightly narrowed about the 

 middle and somewhat enlarged at the distal end, terminating in a 

 sharp point. Anellus a sclerotized plate, posterior edge concave, and 

 with weak lateral lobes. Vinculum rounded, broad, with well de- 

 veloped dorsoanterior process. Aedeagus slender, slightly curved, 

 gradually tapering to a sharp, dorsally upturned point; at the base 

 is a bifid sclerotized arm by which the aedeagus articulates with the 

 anellus. Transtilla a narrow band, with well developed, hairy, lat- 

 eral lobes. Gnathos a long, spined cone. Socii rather small, clothed 

 with fine hairs. 



Female genitalia. — Genital plate broad, with pronounced anterior 

 median ventral evagination. Ostium large, oval, in posterior half 

 of genital plate. Ductus bursae membranous, long; inception of 

 ductus seminalis well before ostium. Bursa copulatrix large, oval; 

 signum a small, oval plate, with serrate edges and a pointed process 

 from the posterior margin. 



Alar expanse, 17-21 mm. 



Type. — In the British Museum. 



Type locality. — Lake County, Calif. 



