478 L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. [No. 3, 
in May, 1893. Since then a second specimen was obtained in December, 
1894, at the same locality by a clever Battak collector named Sinobar. 
471. Neocheritra nisibis, de Niceville. 
N. nisibis, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. ix, p. 316, n. 33, 
pi. P, fig. 45, female (1895). 
Described from two females, one each from the Malay Peninsula 
and Sumatra. 
472. Thrix gama, Distant. 
This is a very remarkable genus, the male having a somewhat 
similar tuft of hairs on the upperside of the forewing to that found in the 
genera Dacalana and Arrhenothrix. It occurs rarely in Sumatra from 
.Selesseh to Soengei Batoe in May, June and July. The males vary in 
size from 1'45 to 1'75 inches. 
473. Manto martina, Hewitson. 
M. martina, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. ix, p. 314, n. S!£, 
pi. P, fig. 44, female (1895). 
Originally described from Borneo, but is found also in Burma, the 
Malay Peninsula and Sumatra. Occurs at low elevations as high only 
as Namoe Oekor from February to July and again in October. 
474. Jacoona anasuja, Felder. 
Hitherto known only from the Malay Peninsula. The female 
has still to be discovered. Very rare, only two specimens obtained in 
thirteen years, both at Selesseh in May. 
475. Neomyrina hiemalis, Godman and Salvin. 
Hagen. With the exception of Arrhopala agnis, Felder, this is the 
largest of our Bycsenidse. Very rare, as it flies very high and quickly in 
the forest. Dr. Martin once saw a specimen flying across a small open 
grassy patch from one piece of forest to another. Its flight was so 
rapid that its long tails were nearly invisible, and at first sight 
it gave the impression of being a specimen of the smaller white 
Catopsilia (G . pyranthe , Linnasus). It is found over the whole of our 
area, with the exception perhaps of the Central Plateau. Dr. Martin 
has specimens from the Gayoe-lands, Selesseh, Deli and Asahan. It is 
probably less rare in the western part of our area, as at Padang Tjer- 
min in Langkat an amateur collector obtained some ten specimens in 
one year. 
