60 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



Labial palpus yellowish mottled exteriorly with purplish fuscous; 

 third segment with indistinct basal and subapical fuscous annuli. 

 Antenna fuscous broadly annulated with tawny. Head and thorax 

 cinereous, the former with a fuscous median shade, the latter irrorated 

 with purplish fuscous ; tegula purplish fuscous. Fore wing brownish 

 purple dusted with fuscous and with much cinereous scaling along 

 costa; at base, from inner angle almost to costa a narrow, cream- 

 colored, transverse line preceded at inner angle by a distinct black 

 spot; on disk, before middle, a short outwardly curved, black 

 crescent-shaped dash edged with reddish and followed by cinereous; 

 at end of cell a small cream-colored spot edged with fuscous; from 

 costa to termen at apical third a more or less distinct cinereous fascia ; 

 inner margin narrowly shaded with reddish ; around termen, at base 

 of cilia, a narrow blackish-fuscous line; cilia purplish gray. Hind 

 wing and cilia brownish gray, the latter edged with cinereous. Legs 

 cream-colored strongly overlaid and irrorated exteriorly with pur- 

 plish fuscous except at joints. Abdomen purplish gray above; 

 beneath, cream-colored strongly suffused and overlaid with purplish 

 fuscous. 



Alar expanse, 13-18 mm. 



Tyfe. — In the British Museum. 



Type locality. — "Illinois." 



Food plant. — Lythrum alatum Pursh. 



Distribution. — Eastern United States. 



United States records 

 Illinois. 

 North Carolina: Black Mountains (July 20, from larvae). 



Remarks. — The male genitalia of this species are nearly identical 

 with those of hyperella, arcuella, nuhiferella, and gelidella. The 

 clasper of the harpe (fig. 155), however, is much more slender than 

 that of any of the other four. Each of the hairy lobes of the 

 transtilla bears about half a dozen strong hairs. In hyperella and 

 arcuellu there are only two or three hairs and in gelidella the hairs 

 are numerous but weak. I have not seen the female genitalia of this 

 species. All females examined are without abdomens. 



AGONOPTERIX NUBIFERELLA (Walsingham) 



Plate 26, Figuees 161, 161a 



Depressaria nuhiferella Walsingham, Proc. Zool. See. Lonclou, ISSl, p. 316, 

 pi. 36, fig. 6.— BuscK, Proc. U. S. Nat. Mus., vol. 24, p. 745, 1C02 ; iyi Dyar, 

 U. S. Nat. Mus. Bull. 52, No. 5S81, 1903.— Kearfott, in Smith, List of the 

 Lepidoptera of Boreal America, No 6424, 1903. — Busck, Proc. U. S. Nat. Mus., 

 vol. 27, p. 764, 1904. — MeyeicKs in Wytsman, Genera insectorum, fasc. 180, 

 p. 176, 1922. — Gaede, in Bryk, Lepidopterorum catalogus, pt. 92, p. 335, 1939. 



Agonopteryx nuMferella (Walsingham) Busck, Proc. U. S. Nat. Mus., vol. 35, 

 p. 199, 1908. 



