NO. 1420. NEW HOVTII AMERICAN MOTHS— SVHAllS. 285 



Friniaiics dark reddish l)rown, in a fresh female violaceous; the inner 

 niaroin straight, sluuh^d with lilacine; basal line white, interrupted, not 

 reaching' subniedian; a larue white spot in cell crossed by a wav}' red- 

 dish brown line, a smaller white spot al)ove it on costa; an antemedial 

 dark streak on inner margin; a dark spot at end of cell; on costa at 

 four-Hfths from base a white spot; l)elovv it a grey line to iiuier mar- 

 g-in at two-thirds from base. Secondaries whitish with blackish grey 

 hairs; the veins dark brown; the outer margin and opaipie spot black- 

 ish brown. 



K.i'pan^e. — 38 nun. 



Hahltat. — Omai, British (niiana; St. Laurent, Maroni River, French 

 Guiana. 



7)/7>.y. -Cat. No. S76»i, T.S.N.M. 



HEMICERAS CRASSA, new species. 



Palpi lilacine. Head reddish brown; some white hairs at Ijase of 

 antenna; thorax violaceous brown; patagia lilacine. Abdomen dull 

 blackish l)rown above, ventrally lilacine, late)*ally butf. Primaries 

 ver}^ dark reddish brown; inner margin straight, narrowly shaded with 

 grey; a dark point at its center; a large darker spot at end of cell; 

 some grey scales on costa just before its middle; postmedial line at 

 four-tifths from base, dark g'rey", edged with black; no other lines 

 visible; a few greyish scales on costa at postmedial Hue. The sec- 

 ondaries as in //. goi'fyuoUlexi Schaus. 



Eitpaiixe. — 37 mm. 



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



%>6^— Cat. No. 876T, U.S.N.M. 



HEMICERAS COMMENTICA, new species. 



Palpi and frons light reddish brown; some white at base of anten- 

 na'. Vertex, collar, and thorax lilacine streaked with lig-ht reddish 

 brown. Abdomen buli', becoming dark grey dorsally on last seg- 

 ments. Primaries grey, irrorated with light brown, the outer margin 

 brown; a darker grey spot at end of cell; a l)asal and an antemedial 

 fine wav}^ darker line, very indistinct; the postmedial from costa at 

 twx)-thirds from base, oblique to just above vein 6, where it is angled 

 and tinely wavy to inner margdn at two-thirds from base; the brown 

 marginal shade is inwardly bordered above vein 8 by a tine darker 

 l)rown shade. Secondaries butf at base; outer margin dark grey- 

 brown. 



Expanse.— MaX^^ 39 mm.; female, 41 nun. 



Hahitat. — Maroni River, French Guiana. 



This species is ver}^ similar to //. angulinea Schans, the t3'pe of 

 which is a female with simple antenna. In II. eommentica the female 

 antennse are pectinated but more shortly than in the male. 



Type.- 0^it. No. 8768, U.S.N.M. 



