286 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 50. 



THURSANIA TIGURIALIS, new species, 



Male.— Body and wings brown. Fore wings: antemedial line 

 dark brown, fine, wavy, outwardly oblique from costa; a minute 

 black point as orbicular; medial shade darker brown, narrow, verti- 

 cal; a fine dark line on discocellular, faintly inangled; an irregular 

 fine whitish ocher subterminal line, inwardly broadly shaded with 

 dark brown; termen dull grayish brown; an interrupted terminal 

 black line. Hind wings slightly paler; a discal point and dark 

 postmedial line; the subterminal minutely lunular dentate, whitish 

 ocher. Hind wings below whitish irrorated with gray brown; a 

 black point in cell, and large spot on discocellular; the postmedial 

 and subterminal lines fine, dark; an interrupted terminal black line 

 on both wings. The antennae are tufted very near tips. The 

 palpi are smootUy scaled, the 3d joint with very short fringe behind. 



Expanse. — 27 mm. 



Habitat. — Tiguri, Carabaya, Peru. 

 . Type.— Cixt. No. 19719, U.S.N.M. 



THURSANIA GRANDIRENALIS, new species. 



Male. — Antenna! tuft before middle. Palpi upcurved, fringed 

 behind, the second joint reaching just above vertex; the third joint 

 half as long as second. Body and wings dark grayish brown, the lines 

 clearer brown, fine, indistinct; antemedial nearly vertical and straight; 

 medial line similar ; postmedial outcurved around renif orm, somewhat 

 lunular, and outwardly edged with whitish gray on inner margin; 

 subterminal very fine, partly edged outwardly with whitish gray; 

 spots 3^ellowish edged with dark brown; orbicular small, round; 

 reniform large, its outer edge incurved, and containing two black 

 points. Hind wings : The darker medial line only near inner 

 margin, the postmedial to near costal margin, both finely edged out- 

 wardly with gray. Wings below more grayish; liind wings with fine 

 streak on discocellular; a fine postmedial line; a pale subterminal 

 line, indicated by dark edging. 



Expanse. — 25 mm. 



Hahitat. — A male from Ai'oa, Venezuela. 



Type.— Cat. No. 19720, U.S.N.M. 



A female from La Chorrera, Panama. 



PSEUDARISTA, new genus. 



Male. — Palpi porrect, the second joint fringed above and below 

 with long hairs; third joint short, upturned. Antennae pubescent 

 with tuft on medial third. Legs smoothly scaled. Wings long and 

 narrow, the hind wings truncate at anal angle. Fore wings: Vein 

 3 before lower angle ; 4 and 5 from lower angle ; 6 below upper angle ; 



