102 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



Female genitalia. — Ostium large, round, near anterior margin of 

 genital plate ; anterior edge of genital plate produced, the production 

 nearly as wide as the plate is long. Ductus bursae membranous, 

 long ; ductus seminalis entering well before ostium. Bursa copulatrix 

 relatively small; signum a weakly sclerotized, oval, toothed plate. 



Alar expanse, 20-23 mm. 



Type. — In the United States National Museum. 



Type locality. — Cincinnati, Ohio. 



Food plants. — Xanthoxylum amsricanum Mill, and Oarya (sp. ?). 



Distribution. — Eastern United States and Canada and probably 

 as far west as Texas in the South, following the distribution of the 

 food plant. 



United States records 



Ohio: Cincinnati, 2 S S , 4 $ 5 (June and July dates, A. F. Braun). 



Canadian records 

 Ontario: St. Davids, 2 5 2 (VII-16-34, W. L. Putnam). 



Remarks. — Busck^^ recorded this species from Ptelea trifoliata., 

 but the food plants of nigrinotella are Xanthoxylum annericanum 

 and Carya (sp. ?). The species referred to by Mr. Busck is an 

 undescribed species, the description of which follows. 



AGONOPTERIX COSTIMACULA, new species 



Plate 30, Figures 174, 174a; Plate 45, Figure 261 



Agonopteryx nigrinotella Barnes and Busck (not Busck), Contr. Lepid. North 

 America, vol. 4, p. 232, 1920. 



Superficially much like nigrinotella but lighter, less immaculate, 

 and averaging larger with correspondingly wider wings. 



Head light ochreous-f uscous ; face whitish ochreous; labial palpus 

 light ochreous-fuscous, lighter interiorly on second segment and 

 irrorated with blackish fuscous exteriorly; terminal segment with 

 blackish- fuscous subbasal and supramedial annuli and apex ; antenna 

 ochreous-fuscous, darker toward apex, narrowly annulated with 

 blackish fuscous. Thorax light ochreous-fuscous mixed with fuscous 

 anteriorly; ground color of fore wing ochreous-fuscous, the base and 

 costa to about middle slightly lighter; light basal area followed by 

 a blackish- fuscous shading; at basal third two obliquely placed black 

 discal spots, the upper, inner one large, the outer, lower one small; 

 at end of cell a light whitish-ochreous discal spot narrowly edged 

 with fuscous; on costa, six or eight conspicuous fuscous spots and a 

 series of smaller ones at ends of veins around termen; the whole 



Busck, Contr. Lepid. Nortli America, vol. 4, p. 232, 1920. 



