528 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



Under side yellow straw-color, black speckled; median line blackish; 

 a black and chestnut-brown postmedian fascia; the inner half V)lack. 

 not reaching costa, the outer half brown, not reaching innei* margin; 

 thorax, abdomen, and legs ochreoas, mottled with brown and fuscous; 

 face, palpi, and vertex brown, becoming paler below. 



Expanse of wings. — 80 mm. 



Locality. — St. Jean, Maroni River, French Guiana; 1 female; April, 

 1904. 



Probably near I'lujngiata Guenee. 



Tijpe.-Q2i^. No. 9393, U.S.N.M. 



SEMIOTHISA FERVENS, new species. 



Forei'vtxj. — Pale ochreous, almost entireh' covered with violet-gray 

 stria' and sutt'usion; costal edge yellow, with dark dots; lines deep fer- 

 ruginous, mixed Avith yellow scales; tirst at one-fourth, oblique out- 

 ward, bent in cell and curved l)elow median; the areas inclosed within 

 it on each side of the median vein whitish, the fovea preceding large, 

 triangular, its edges marked by dark scales; median line from middle 

 of costa to two-fifths of inner margin, almost straight, touching cell 

 spot; outer line thick and sinuous at two-thirds, edged with paler; 

 forming a larger sinus be^'ond cell and on submedian fold; submarginal 

 line pale, preceded by a ferruginous waved shade; marginal area with 

 black-gray stria^; marginal lunules black; fringe gray. 



Hindwing. — Without fovea or basal line. 



Under side pale straw-color with ferruginous striations; middle line 

 and cell spot marked with ferruginous; outer line slightly marked, fol- 

 lowed by a narrow bright f urruginous shade, dift'use externally and 

 edged by dark lunules with pale spots before the violet-gray marginal 

 area. Head and antennjc dark l)rown; thorax and abdomen like wings. 



Expanse of nHngs. — 25 mm. 



Locality. — St. Laurent, Maroni River, French Guiana; 1 male, Sep- 

 tember, 1904. 



Hind margin of forewing sinuous, not excised; of hindwing hardly 

 toothed at middle; straight below middle, crenulate above; antennae of 

 male thickened, with tuberculate fascicles of cilia. 



Very much like S. hcterogenata Guenee, but the course of the outer 

 line is altogether dilierent. 



Type.—OAi. No. 9394, U.S.N.M. 



SEMIOTHISA LAPIDATA, new species. 



Eorewing. — Pale stone-color, covered with faint grav strife, those 

 along the nmrginal area darker; costa with short dark marks; oblique 

 dark streaks from costa at one-fourth, one- half , and three-fourths, from 

 whicii the usual three lines run to inner margin, the first and s(>cond 

 curved and simple, third marked b}- black dots on veins, followed by 



