556 PROCEEDIXGS OF THE NATIONAL, MUSEUINI vol.86 



wing buflfy olive, somewhat glossy, the costa broadly pale ochraceoiis- 

 salmon; a dark spot at base of costa. Hind wing dark olive-buff, 

 somewhat metallic, with faint whitish suffusions at base. Fore wing 

 below paler than above, strongly metallic, the costa slightly vinaceous. 

 Hind wing below glossy white with faint darker suffusions. 



Expanse, 48 mm. 



Habitat. — Hansa Humboldt, Brazil. 



Type.— U.S. ISiM. no. 34721. 



Genus HEMICERAS Guen#e 



HEMICERAS TRISTANA. new species 



Mfl/f.— Palpi chamois, the upper edge tawny; vertex gray with a 

 few dark scales; collar in front and patagia light grayish vinaceous, 

 the latter dorsally edged with fuscous, also the thorax; abdomen dor- 

 sally drab, sublaterally and underneath cameo pink. Fore wing 

 honey yellow, silky and with a faint roseate tinge with dark irrorations 

 forming lines; at base a costal spot to median vein; an antemedial 

 shade slightly outcurved from subcostal to inner margin followed by 

 black points on subcostal, median and below median; some dark shad- 

 ing medially above inner margin ; a small black spot in cell at subcostal; 

 an oval narrow black spot on discocellular; a black point at base of 

 vein 5 closely followed b}' a larger black spot; a pale postmedial line 

 from costa to vein 2, then slightly incurved, its proximal edge with 

 black points on veins and with darker shading distally at inner 

 margin; termen with irregular dark shading. Hind wing whitish with 

 honey-yellow suffusions, dark at anal angle. Fore wing below light 

 pinkish cinnamon, the hind wing white. 



Female. — The wings distinctly darker, the suffusions broader, al- 

 most dark vinaceous-drab; a fine pale outcurved antemedial line. 



Expanse. — Male 44 mm.; female 47 mm. 



Habitat. — Santa Catharina, Brazil. 



7^/^e.— U.S.N.M. no. 34726. 



Allied to Herniceras latior Draudt and 77. piindata Dognin, differing 

 in the three discal spots on fore wing. Five males and two females in 

 collection. 



HEMICERAS R09TERIA, new species 



Male. — Head and body above cinnamon-buff, abdomen laterally 

 and underneath pinkish buff. Fore wing antimony yellow, somewhat 

 darker on inner margin; the lines fine, darker, the antemedial, vertical, 

 pale edged proximally, the postmedial from costa at two-thirds from 

 base, inbent to inner margin near antemedial, pale edge distally; a 

 subterminal line more indistinct; a faint streak on discocellular, the 

 inner margin lobed at middle. Hind wing white suffused with pale 



