304 On some new Heterocera from Tropical America. 
Hematerion melanobasis, sp. n. 
Male.—Primaries hyaline, the base, costal, outer, and inner 
margin black, the veins all black: secondaries whitish — 
hyaline, broadly bordered with black ; two small hyaline 
spots on the black border close to the apex. Underside the 
same as above. The head, antenne, thorax, abdomen, and 
legs black; the first three segments of the abdomen with a 
central cream-coloured spot, the anal segments bright red. 
Expanse 13 inch. 
Hab. South Brazil (Mus. Druce). 
Argyroeides placida, sp. n. 
Male.—Primaries and secondaries yellowish hyaline; the 
fringe and veins of both wings black. The head, antenne, 
thorax, abdomen, and legs black; the basal segment of the 
abdomen cream-colour ; the abdomen banded with blue. 
Expanse 1} inch. 
flab. Ecuador (Mus. Druce). 
Fam. Pericopide. 
Eucyane albimacula, sp. n. 
Eucyane Arcei 2, Druce, Biol. Centr.-Amer. ii. t. Ixxvi. fig. 12, 
p- 385. 
I had seen four females with the band crossing the pri- 
maries white, and concluded that they belonged to H. Arcet, 
as they differed in no other respect. . Since then I have seen 
a white-banded male, which proves that they are referable to 
a distinct species and require to be named. 
Eucyane cerealia, sp. n. 
Male.—Primaries deep black : secondaries rich glossy deep 
blue, brightest near the base, the fringe carmine-red. The 
head, antenne, legs, and thorax deep black ; abdomen bright 
glossy blue. 
Expanse 1? inch. 
Hab. Keuador (Mus. Druce). 
This beautiful species is very distinct from all others 
known to me. 
Eucyane lysimachides, sp. n. 
Male.—Primaries deep black, crossed near the apex from 
the costal to the inner margin by a narrow carmine band, 
crossed by black veins: secondaries bright glossy deep blue, 
