222 PROCEED [.\'( IS OF THE NATIONAL MUSEUM. vol. xxix. 



black; fringe black. Secondaries white, the margins, except base of 

 inner margin black. In the female, only the base of wing is white. 



Expanse. — Male, 38 nnn.; female, 37 mm. 



ITahltat. — Maroni River, French Guiana. 



The male antennas are serrate and ciliate; vein 10 is from angle of 

 cell. 



Ti/pe.—C'At. No. 8607, U.S.N.M. 



HYPERTHiEMA COCCINATA, new species. 



Body crimson. Pal})i tipped with black; a black point on tegulse; 

 two lateral rows of black spots on al)d()men. Legs crimson; tibi* 

 and tarsi brown. Primaries crimson; a black point at base; around 

 white antemedial spot below cell, and one beyond cell from veins 5 to 

 6 both circled with Idack; fringe brown. Secondaries: the base and a 

 spot beyond (^ell white; otherwise black, thinlv scaled; some red scales 

 at l)ase of inner margin. 



Expanse. — Male, 31 nun. 



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



Antennai pectinated; vein 10 is slightly stalked with 8. 



Type.— Ciit. No. 8608, U.S.N.M. 



Genus PACHYDOTA Hampson. 

 PACHYDOTA DUCASA, new species. 



Head and thorax dark brown; the vertex white. Abdomen yellow 

 on first and last three segments; other segments black with lateral 

 yellow spots; underneath dark brown. Legs brown; femoi'a yellow. 

 Primaries violaceous brown, with dark transverse fascife; the ante- 

 medial, medial, and postmedial fasciis straight to inner margin, the 

 last followed by an incurved fascia from costa to outer margin below 

 vein 3, where it is joined by the subterminal; a shorter shade at apex. 

 Secondaries white, the veins and margins suffused with violaceous 

 brown. 



Expanse. — 57 mm. 



Habitat. — Aroa, Venezuela. 



Type.—Cvit. No. 8609, U.S.N.M. 



Genus DIALEUCIAS Hampson. 

 DIALEUCIAS VIOLASCENS, new species. 



Head, thorax, and primaries violaceous brown. Abdomen and 

 secondaries black-grey. AbdomiMi underneath yellowish buii'. Pri- 

 maries, a medial and a postmedial darker shade. 



Expanse. — Female, 31 mm. 



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



Ty2)e.—C^i. No. 8610, U.S.N.M. 



