64 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



AGONOPTERIX MURICOLORELLA (Busck) 



Plate 26, Figitbes 158, 15Sa ; Plate 42, Figuee 243 



Depressaria muricolorella Busck, Proc. U. S. Nat. Mus., vol. 24, p. 741, 1902; 

 in Dyar, U. S. Nat. Mus. Bull. 52, No. 5873, 1903.— Kearfott, in Smith, 

 List of the Lepidoptera of Boreal America, No. 6416, 1903.— Meyrick, in 

 Wytsman, Genera insectorum, fasc. 180, p. 176, 1922,— Gaisde, in Bryk, 

 Lepidopterorum catalogus, pt. 92, p. 333, 1939. 



Agonopteryx muricolorella Busck, Proc. U. S. Nat. Mus., vol. 35, p. 199, 1908. 



Agonopterix muricolorella (Busck) McDunnough, Check list of the Lepi- 

 doptera of Canada and tlie United States of America (Part 2, Microlepidop- 

 tera). No. 8441, 1939. 



Agnopteryx muricolorella (Busck) Barnes and McDunnough, Check list of the 

 Lepidoptera of Boreal America, No. 6455, 1917. 



Labial palpus creamy white; outside of second and all of third 

 segment suffused with ochreous-gray ; second segment sparsely ir- 

 rorated with fuscous. Antenna dark ochreous-gray. Head, thorax, 

 base and basal third of costa of fore wing light grayish brown ; fore 

 wing dark mouse gray with sparse blackish-fuscous irrorations and 

 with a purple tint around edges and at apex; at end of cell a 

 white discal spot edged outwardly with a semicircle of blackish- 

 fuscous scales ; first discal spot indicated by a few scattered blackish- 

 fuscous scales at basal third; on costa and around termen a series 

 of indistinct blackish-fuscous spots; cilia mouse gray with some 

 mixture of pale whitish ochreous. Hind wing grayish fuscous; 

 cilia a shade lighter with light fuscous band and whitish tips. 

 Legs light grayish ochreous suffused with fuscous. Abdomen dark 

 purplish gray above; beneath grayish ochreous shaded with fuscous. 



Male genitalia. — Harpe moderately clothed with fine hairs ; cucul- 

 lus pointed ; clasper rather stout, lightly sclerotized, constricted just 

 before middle and having a twisted appearance; apex heavily scler- 

 otized, rough. Anellus oval, longer than broad, with large hairy 

 lateral lobes; posterior edge concave. Vinculum rounded with a 

 well developed dorso-anterior process. Aedeagus stout, cur\xd, and 

 terminating in a sharp, slightly upturned point. Transtilla a scler- 

 otized band with well developed hairy lateral lobes. Gnathos oval, 

 clothed with spines. Socii broad, hairy lobes. Tegumen terminating 

 in a single short median projection. 



Female genitalia. — Genital plate moderately broad; deeply cleft 

 on posterior edge. Ostium small; near anterior margin of genital 

 plate ; at posterior end of ostium two small, sclerotized lateral areas. 

 Ductus bursae long, gradually enlarged to form the small oval 

 bursa copulatrix. Signum an oblong, sclerotized plate with pro- 

 jections on the anterior and posterior edges. 



Alar expanse, 17-18 nun. 



Type. — In the United States National Museum. 



