NO. 2132. REVISION OF THE SUBFAMILY IIYPENINAE—SCHAUS. 323 



OIDEMASTIS, nev^ genus. 



Male. — Antennae serrate, pubescent ciliate. Palpi upciu'ved 

 reaching well above head; second joint slender, shortly fringed in 

 front; third joint a little more than half the length of second. Fore 

 tibiae and base of tarsi heavily fringed; hind tibiae smooth. Fore 

 wings: Costa arched at base, medially depressed; apex acute; lower 

 angle of cell rounded; veins 3, 4, 5 equally apart; 6 near upper angle; 

 areole narrow; 7 from end; 8, 9, 10 stalked from end of arcole; 11 

 free. Base of costa below, and the entire inner margin densely and 

 roughly scaled. Hind wings : Veins 3 and 4 stalked ; 5 from near lower 

 angle; 6 and 7 more shortly stalked. 



Ty2)e of genus. — Oidemastis caliginosa Schaus. 



OIDEMASTIS CALIGINOSA, new species. 



Female. — Body dark brown; abdomen irrorated with buff; a dorsal 

 buff spot at base. Wings dark brown to postmedial line, the outer 

 space slate gray; a sub terminal buff brown line, nearly straight, 

 edged with fuscous brown, bifurcating on fore wing at vein 6 to 

 apex; a marginal dark brown line, outwardly partly edged with buff 

 brown; cilia with dark lino at base, the tips partly wliite. Fore 

 wings: An indistinct antemedial darker line; costa mottled with buff 

 brown; orbicular a white point; reniform linear, white, edged with 

 dark brown, and followed by a large brownish buff shade; postmedial 

 dark brown, fine, outcurved, inwardly edged with buff brown. Hind 

 wmgs : Some buff' bro^vn mottlings below vein 3 ; a darker shade on 

 discocellular, and indistinct postmedial line. Fore wings below 

 grayish, the costa yellow buff' striated with brown; the spots as 

 above. Hind wings below grayish brown, broadly shaded with 

 white on inner margin, and striated with yellow buff"; a dark line on 

 discocellular; the buff sub terminal line distinct. 



Expanse. — 17 mm. 



Habitat. — St. Jean, Maroni River, French Guiana. 



Type.— C&t. No. 19763, U.S.N.M. 



Genus SCOPIFERA Herrich-Schaffer. 



Scopifcra Herrich-Schaffer, Corr.-Blatt, Rogensliurg, 1870, pp. 103, 108. 



Male. — Palpi long, upturned, reaching well beyond thorax; second 

 joint with upturned lateral hairs. Antennae pubescent ciliate. 

 Legs smooth; fore tibiae hairy. Wings long, outer margin rounded. 

 Fore wings: Vein 3 from near lower angle; 4 from lower angle; 

 5 close above angle; 6 from upper angle; areole very small; 8, 9, 10 

 stalked; 11 free. Hind wings: Veins 3 and 4, and 6 and 7 shortly 

 stalked; 5 close to lower angle. 



