372 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1891. 



nervule, these three spots together forming an inner discal fascia^ 

 which is quite separated from the outer discal fascia, this latter 

 consists of two spots touching each other and divided by the first 

 subcostal nervule, then four spots forming almost a straight line and 

 separated from the two costal spots, being shifted outwardly out of 

 line with them, then two or three spots placed internal to the four 

 on the middle of the disc, curved upwards to the abdominal margin ; 

 two submarginal fasciae more prominent than in the forewing ; a 

 small anal lobe centred with reddish-brown. Female. Upperside, 

 both icings with the purple coloration more restricted than in the 

 male, and of a lighter and brighter shade. Forewing with a prominent 

 black spot at the end of the cell, on either side of which is a small 

 shining whitish patch more distinctly visible in some lights than in 

 others. Underside, both wings paler brown than in the male, less 

 silky, and usually barely washed with violet ; all the markings 

 larger, but less prominent than in the male. 



Very near to A . rama, Kollar, which occurs probably all along the 

 Himalayas, in Burma, and in Central China. Both sexes of A. alemon 

 differ from those of A. rama in having the purple coloration of the 

 upperside more extensive, the tail of the hindwing twice as long (in 

 A. rama it is little more than a tooth) ; the female differs conspicu- 

 ously in possessing a black patch at the end of cell of the forewing 

 flanked on either side by a shining whitish patch, a feature 

 wholly wanting in A. rama. The ground-colour of the underside of 

 both sexes is also paler, and the discal band of the forewing broader 

 and more regular. In the " Butterflies of India," vol. iii, p. 252, I 

 expressed the opinion that these Burmese specimens were not suffi- 

 ciently distinct from A. rama to warrant their description as a 

 distinct species ; but Lieutenant E. Y. Watson, who has taken both 

 species side by side in the Tilin Yaw, Upper Burma, assures me that 

 they are quite distinct, so I have at his suggestion described them. It 

 is also allied to A. hhamti, Doherty, from Margherita, Upper Assam, 

 but wholly lacks the " large subanal ocellus bordered with metallic 

 green, which extends to the first median nervule" and the " dark 

 spot edged with whitish in the first median interspace " of the hind- 

 wing on the underside, which are said to be characteristic of that 

 species. 



