50 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. VIIT 
inner angle, rather far apart en the costa, close together posteriorly, the inner 
band twice as wide as the outer; a short obscure fine marginal white line 
at the inner angle. Hindwing outwardly becoming pale brown; the outer 
third of the wing pure white, but apically and anally of the brown ground- - 
colour ; a small white spot at the apex, then two large jet-black spots divided 
by, and bounded anteriorily and posteriorly by, the rich ochreous termina- 
tions of the second subcostal, discoidal, and third median nervules, the anterior 
black spot surrounded on three sides by a white line, the posterior spot 
marked anteriorly and posteriorly by a white line; a rather large triangular 
brown spot at the base of the tail; a very small brown spot in the first 
median interspace; a duplicated jet-black spot divided only by the fold in the 
submedian interspace ; a narrow black line at the anal angle along the margin, 
with similar, but still narrower, decreasing black limes in the three anterior 
interspaces ; a very narrow marginal black line ; tai white. Cilia of the 
forewing brown, of the hindwing pure white. UNDERSIDE, both wings with 
the ground-colour much paler than above, hoary at the base. Forewing with 
the discal lines more prominent than on the upperside, pure white; the fine 
white line at the inner angle more prominent. Aindwing marked much as 
above, but the outer white area is seen to bear inwardly an almost continuous 
brown line, it being broken only in the median interspaces, where it is 
represented by two brown spots, and is recurved to the abdominal margin 
above the anal angle. 
In the ground-colour of the upperside, A. ata resembles A. neophron, 
Hewitson, but the two whitish bands of the forewing ally it more nearly to 
A, savitri, Felder, which also occurs in Sumatra. A. ata is abundantly 
distinct from all its allies by the presence of the large outer white area on both 
sides of the hindwing. 
Described from two examples in my collection. 
Family LYCASNID A. 
10. YASODA PITANE, n. sp., Pl. L, Fig. 5, ¢. 
Hasitat : Battak Mountains, Sumatra. 
Expanse: @, 1°35 inches, 
Description : Maur. UPpERsIpn, both wings rich orange-yellow. Fore- 
wing with a very broad deep black outer border with its inner edge evenly 
curved, the border broadest at the apex, nearly three millimeters broad at the 
inner angle ; a minute black dot in the second median interspace ; the base of 
the wing powdered with dusky. Aindwing with more than the outer half of 
the wing deep black, this black area commencing very narrowly on the costa, 
then broadly on the outer margin as far as the discoidal nervule, when it is 
continued across the wing to the abdominal margin parallel with the costa ; the 
