96 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 42. 



miiial line curved at apex, silvery, cutting off a dark brown patch at 



apex, then obliquely toward inner margm, but lost below; an angular 



velvety brown patch between this and the digitate projections near 



middle of wing. Hind wing red-brown. .Expanse, 25 mm. 



Type.— Fern&le, No. 14082, U.S.N.M., "unf. Br6sil." (collector 



unlaiown). 



NAROSOPSIS, new genus. 



Antennae of the male bipectinated at the base, the terminal third 

 coarsely serrate; palpi upturned to the middle of the front, tliick, 

 the end joint short; veins 2 and 3 of fore wing well separated; spurs 

 of the mid tibise long and distuict; vem 7 of fore whig from the cell; 

 thorax with posterior truncated tuft. 



Genotype. — Narosopsis leucospila, new species. 



NAROSOPSIS LEUCOSPILA, new species. 



White; fore wing outwardl}^ shaded with purplish brown in which 

 are scattered blacldsh scales forming a line from costa before apex 

 toward tornus. Hind wing grayish shaded, especially on the veins. 

 Expanse, 17 mm. 



Type.—lidlQ, No. 14083, U.S.N.M., Sixola River, Costa Rica, 

 September, 1909 (W. Schaus). 



Genus EUPROSTERNA Dyar. 

 ETJPROSTERNA HOSIA, new species. 



Bronzy brown, the apex purplish brown, shaded; two indistinct 

 parallel dark lines across the wing. Hind wing dark chocolate 

 brown. Expanse, 17 nam. 



T^pe.— Male, No. 14084, U.S.N.M., Carillo, Costa Rica, August 2, 

 1909 (W. Schaus). 



Genus NATADA Walker. 



NATADA MICHORTA, new species. 



Head and collar shaded with orange; else carneous brown; fore 

 wing lustrous silky brown with transverse impressed lines, some- 

 what irrorate with dark scales, the base and anal angle with a slight 

 orange tint, the apex purplish; outer margin shallowly emarginate 

 on upper half. Hind wing uniform brown. Expanse, 25 mm. 



Type.—UaXQ, No. 14085, U.S.N.M., Esparta, Costa Rica, May 25, 

 1908 (W. Schaus). 



NATADA NINDLA, new species. 



Head and collar broadly yellow, the color invading the center of 

 the thorax; rest of thorax dark purplish brown; fore wing of the 

 same dark brown; a blackish patch at lower angle of cell and one 



