438 
L. de Niceville &Dr. L. Martin — Butterflies of Sumatra. [No. 3, 
sea (Fa}^a Bakong) to Bekantschan. It occurs in every forest, where it 
is especially partial to faeces and moist spots. It is a very variable 
insect as regards the extent of the black coloration on the upperside of 
the fore wing, and the colouring of both wings on the underside. 
Some of our specimens agree very well with Mr. Moore’s figures of 
C. corax , Felder, in Lep. Ind., vol. ii, pi. clxxv (1895). This species 
is restricted by Mr. Moore to Sikhim, Bhutan, Assam and Burma. 
Other specimens agree very closely with the figures of G. hierax , Felder, 
given on the next plate of Mr. Moore’s work above mentioned, and re¬ 
corded by him from Assam only. Of the three names, liarpax , corax , and 
hierax , the last is the oldest. It is more than probable, how r ever, that 
the species will hereafter stand as G. baya , Moore, originally described 
from Java, which is still older, and with the description of which (it has 
never been figured) some of our specimens agree very closely. The 
females are very rare ; Dr. Martin possesses two only. The tails are 
much longer than in the male, and somewhat spoon-sliaped, one specimen 
in Dr. Martin’s collection has two tails, one each at the terminations 
of the first and third median nervules. 
264. Charaxes ( Haridra ) aristogiton, Felder. 
Originally described without locality, but found in the eastern 
Himalayas, Assam, Burma, the Malay Peninsula, and Sumatra. Our 
specimens agree better with Mr. Moore’s figures of G. desa , Moore, 
Lep. Ind., pi. clxxii, from Lower Burma, but I am not prepared to 
admit that species to be distinct from G. aristogiton. Occurs only 
at the higher elevations, from Bekantschan to the Central Plateau, 
is not very common, and is not at all variable as is G . harpax , Felder. The 
underside of both wings is of a richer and darker red than in specimens 
from Sikhim. No female has been obtained. 
265. Charaxes ( Haridra ) distanti, Honrath. 
Originally described from Perak and Sarawak (Borneo). It is 
perhaps a local race of G. marmax, Westwood, from the eastern Hima¬ 
layas, Assam and Burma, but may be instantly known from it by the 
basal half of the costa of the forewing on the underside being pure 
snow-white instead of concolorous with the rest of the wing. Occurs 
in Middle Tenasserim of Lower Burma, and in Sumatra in the forests of 
the plains, at Paya Bakong and at Selesseli, perhaps not higher than 
Namoe Oekor. It is a rare species, and we have not seen its female. 
266. Prothoe calydonia, Hewitson. 
Originally described from Malacca. Two local races of this splendid 
