336 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.50. 



costa above orbicular, which is very small; reniform consisting of a 

 yellow white shade surrounded by dark spots, the one behind largest ; 

 postmedial finely wavy, outcurved, followed by a fuscous shade from 

 vein 5 to termen at vein 4; a well-marked fine dark terminal line. 

 Hind %vings white, the termen shaded with light brown; a dark brown 

 terminal line. Wings below white. Fore wings: Costa and apex with 

 dark striae; a fuscous shade from costa postmedially to termen at vein 

 4. Hind wings thinly striated with brown except below cell ; the apex 

 more heavily striated; a dark discal hne; a postmedial line; subter- 

 minal line interrupted from vein 4 to near inner margin. 



Expanse. — 19 mm. 



Habitat. — Cayenne, French Guiana. 



Type.— Cut. No. 19810, U.S.N.M. 



DERCETIS PERDICCAS, new species. 



Hale. — Body and fore wings gray brown. Abdomen with fine whit- 

 ish segmental lines. Fore wings: The brown scaling forming fine 

 lines; traces of an antemedial and a postmedial lunular dentate fine 

 darker hne. Hind wings whitish ocher, suffused with brown; traces 

 of a postmedial and a subterminal line toward inner margin, the latter 

 line angled. Hind wings below white irrorated with brown, less so on 

 inner margin. 



Expanse. — 9 mm. 



Hahitat. — Taboga Island, Panama. 



Type.— C&t. No. 19811, U.S.N.M. 



DERCETIS IPHIAS, new species. 



Hale. — Bod}^ gray; abdomen with pale segmental lines. Fore 

 wings gray, finely mottled with grayish brown; lines fine indistinct 

 browTii, originating from fuscous costal spots; antemedial wavy, verti- 

 cal; postmedial outcurved beyond cell, dentate lunular; reniform 

 white and light brown crossed by a dark brown line; an interrupted 

 termmal dark line. Hind wings white shaded with pale grayish 

 bro^vn; a terminal dark line. Fore wings below gray, the costa white 

 crossed by dark striae; reniform white crossed by a dark line; a fus- 

 cous streak on costa above it; a subterminal dark line on costa. 

 Hind wings below wliitc mottled with brown, chiefly on costa; a brown 

 discal spot; postmedial and subterminal brown lines; an interiiipted 

 fuscous brown terminal line on both wings. 



Female grayer. Fore wings : The lines more distmct, not originating 

 from costal spots; reniform mwardly white, outwardly yellow; a whit- 

 ish subterminal line. Hind wings: A fine postmedial lino; a whitish 

 subterminal line; the terminal line on both wings finer than in male. 

 Fore wings below dull brown; the costa medially irrorated with white; 

 reniform as above. Hind wings below brown irrorated with white, the 



