NO. 2039. NOCTUID MOTHS FROM TROPICAL AMERICA— SGHAUS. 541 



fuscous interrupted by white points at veins; a small whitish shade 

 at tornus. Hind wings gray, darkest on outer margin; an outer 

 whitish shade, darker edged, and slightly upcurved at vein 3 ; terminal 

 white points. Wings below whitish irrorated with gray and with 

 darker postmedial and subterminal shades. 



Expanse. — 21 mm. 



Habitat. — Geldersland, Surinam River. 



Type.— Cat. No. 16642, U.S.N.M. 



CORNA OENONE, new sjfecies. 



Male. — Head, collar, and thorax dark brown; some white scales 

 on vertex and thorax. Abdomen fuscous gray; the dorsal tufts 

 at base dark brown. Wings not quite so dark as thorax; a white 

 point at base of median; some white irrorations on costa near base; 

 a white line on costa above orbicular, which is small, white, finely 

 edged with brown black; reniform outlined in fuscous brown, irrorated 

 behind with white ; a fine white line on costa above it ; some marginal 

 whitish scaling, very indistinct; terminal fuscous spots on interspaces; 

 cilia finely wliite basally at middle of interspaces. Wings below 

 grayish, the fore wings shaded with brown except on inner margin; 

 hind wings with a discal spot, fine wavy postmedial line, and broad 

 terminal brown shade; a whitish terminal shade at anal angle. 



Expanse. — 31 mm. 



Habitat. — Geldersland, Surinam River. 



Type.— Cat. No. 16643, U.S.N.M. 



POLYGNAMPTIA, new genus. 



Male. — Antennae bipectinate. Palpi upturned, straight, the tips 

 level with frontal tuft, the second joint slightly fringed below, the 

 third Yery short. Fore tibiae and base of tarsi hairy; legs other- 

 wise moderately scaled. Fore wings broad; costa arched at base; 

 the outer margin outbent to vein 3, incurved below it; cell long, two 

 thirds the length of wing; vein 2 nearer angle than middle of cell; 3 

 and 4 apart from lower angle; 5 slightly above 4 ; 6 below upper angle; 

 7, 8, 10 from areole, 8 and 9 stalked; 1 1 from cell approximating areole. 

 Hind wings: Costa straight; termen produced before anal angle; cell 

 a little more than half the length of wing; veins 3 and 4 well stalked; 

 5 above angle; 6 and 7 from upper angle. 



Type of genus, — Potygnamptia chloristicta Schans. 



POLYGNAMPTIA CHLORISTICTA, new species. 



MaVe. — Palpi yellow brown. Head, collar, and thorax whitish 

 gray, the collar shaded behind with brown; patagia lilacine brown 

 irrorated with white. Abdomen pale buff, with light brown dorsal 

 tufts. Fore wings pale buff-gray, thickly irrorated with dull brown; 



