300 Mr. H. Druce on some new Heterocera 
This species is allied to O. ecuadorina, Westwood, from 
which it is at once distinguished by the entirely different 
shape of the yellow marking on the secondaries, the yellow 
collar, and yellow sides to the abdomen. 
Phasis mardava, sp. n. 
Primaries deep black, crossed about the middle by a curved 
cream-coloured band, which extends from the costal margin 
to the apex: secondaries dark brown. ‘The head, antenne, 
thorax, abdomen, and legs black. 
Expanse 2 inches. 
Hab. East Peru (Mus. Druce). 
Letosoma buprasium, sp. n. 
Male.—Primaries deep reddish brown, palest near the 
apex, where the wing is thickly irrorated with greyish-white 
scales ; a narrow brown line crosses the wing from the costal 
margin to the anal angle; a marginal row of very minute 
white dots extends from the apex to the anal angle: second- 
aries pale chrome-yellow, very broadly bordered with deep 
black. The head, antenne, abdomen, and legs black; the 
thorax reddish brown; anus yellow. 
Expanse 1# inch. 
Hab. Ecuador, Sarayacu (Buckley, Mus. Druce). 
Euthisanotia lycaon, sp. u. 
Male.—Primaries dark reddish brown, with three white 
marks along the costal margin—the first V-shaped, close to 
the base, the second a wide U-shaped mark, and the third a 
large almost square-shaped mark nearest the apex: second- 
aries pale chrome-yellow, broadly bordered from the apex to 
the anal angle with dark reddish brown. Underside very 
similar to the upperside, but with more white on the pri- 
maries. The head, collar, and tegule white; thorax reddish 
brown; abdomen yellow, banded with black on the upper- 
side; antennee black; legs yellow. 
Expanse 1 inch. 
Aub. Ecuador, Sarayacu (Buckley, Mus. Druce). 
This species is very distinct. 
Fam. Zygenide. 
Calanotos (?) nana, sp. n. 
Male.—FPrimaries dull black, with a small white spot on 
