554 PROCEEDIXGS OF THE XATIONAL :MUSEUM vol.86 



the veins. Hind wing below white; a short dark line below base of 

 costa and similar terminal spots at apex. 



Expanse, 42 mm. 



Habitat. — Espirito Santo, Brazil. 



Tt/pg.— U.S.N.M. no. 34716. 



RIFARGIA VALTERIA. new species 



Male. — Head hehotrope-slate wdth some lateral white hairs; collar 

 pale smoke gray edged posteriori}^ by a fuscous line; thorax and 

 patagia grayish white, the patagia vnth a lateral black line ; abdomen 

 with the base and three terminal segments grayish white, the inter- 

 mediate segments deep mouse gra}^, underneath white. Fore wing 

 with the basal half white with grayish irrorations limited by a deep 

 mouse-gray thick line, outcur^'ed on costa; a subbasal black hne; an 

 antemedial double outcurved line, dentate from costa to median then 

 lunular; outer half of wing pale purplish gray, with the veins and a 

 double postmedial lunular Une light purplish gray; a subterminal 

 lunular black line from costa to vein 4, then fainter and straight to 

 inner margin; a terminal deeply lunular black line. Hind wang with 

 basal half and inner margin whitish, the veins finely dark; termen 

 broadly deep mouse gray. Fore wing below dark violet-gray, the 

 base whitish, also postmedially on interspaces; costa terminally finely 

 white also the ciUa. Hind wing below white, the termen broadly 

 dark violet gray, the ciUa white. 



Expanse, 48 mm. 



Habitat. — Hansa Humboldt, vSanta Catharina, Brazil. 



Type.— U.S.N. M. no. 34715. 



Two paratypes in collection. 



RIFARGIA OGDENI. new species 



Male. — Head and collar mottled gray and brown; thorax mottled 

 with brown and gray hairs; abdomen above dark purple-drab with 

 dull grayish hairs at base and on terminal segments. Fore wing 

 grayish white at base on inner margin and at tomus; basal and sub- 

 basal irregular black lines and spots; antemedial line black, double, 

 lunular partly filled in with buff; medial space white with fine dark 

 irrorations; a conspicuous velvety-black spot at end of cell followed 

 by a fine outcurved dark line and a fine double lunular postmedial 

 line followed on costa by short black streaks; a whitish subterminal 

 line preceded and followed by black streaks on veins; subterminal 

 fuscous spots on interspaces and similar spots on tips of veins; some 

 fuscous scaling at tornus. Hind wdng hair brown, slightly paler at 

 base; ciUa white also a small spot above anal angle. Fore wing below 

 hair brown with slight paler suffusions on basal half; cUia white on 



