170 Journal of the F.M.S. Museums. [Vol. X, 



form name for particularly black specimens. Sarawak 

 specimens of this terilus form are practically inseparable 

 from enjcina from Nias. The two post-cellular streaks are 

 not quite so obliterated in two Sarawak males, while the 

 upper cell streak and the two below the cell are more so 

 in one of them. 



Rolhscliild' records a female from the West Coast of 

 Sumatra as enjx. Fruhstorfer's subspecies maenius for 

 this part of Sumatra is probably therefore only a melanic 

 form occurring together with the typical form, which in 

 Sumatra is apparently inseparable from eryx of the Malay 

 Peninsula and Siam. The Bornean subspecies differs 

 consistently from eryx in the general reduction of the pale 

 green markings and particularly in the upper cell streak of 

 the fore wing and the submarginal row of spots in both 

 wings, which are always smaller and less developed. 



17. Danaida aglea Cr. melanoides Moore. 



Danatda aglea grammica Fruhstorfer 1909, p. 208. 

 Danaia aglea Distant 1882. p. 13. 



Loc. Pahang : Senyum — Kota Tongkat, 1 5 June-July 

 (F.M.S. Mus.). 



Distrib. North India from Kashmir to Burma, Tenas- 

 serim and Siam, with subspecies in Tonkin and Formosa. 

 The typical form aglea is restricted to Ceylon, South and 

 Central India. 



Bingham- notes that de Niceville's ligure • of aylea 

 is tliat of the northern form melanoides. The Pahang 

 specimen agrees well with the markings of this figure, 

 but differs in being smaller with narrower fore 

 wings. Bingham, however, notices that the wings of 

 melanoides are longer and narrower than in typical aglea. 

 Godfrey* records melanoides as widely distributed and 

 fairly common in Siam. Two Siamese specimens, kindly 

 sent to me by Godfrey, seem inseparable from Indian 

 melanoides, although the male agrees with the Pahang male 

 in being slightly smaller, with the fore wing narrower than 

 in the Indian male figured by de Niceville. This character 

 is evidently variable, as in a series of 12 males in the F.M.S. 

 Mus. from Pulau Condore the expanse of wings varies 

 from 61-78 mm. The fore wing from anal angle to centre 

 of costa varies from 19-22 mm. in this series. The only 

 female from this locaUty is rather darker than the Siamese 

 form. 



• Rothschild, 1920, p. 147. 

 " Bingham, 1905, p. 18. 



' DE Niceville, 1882, p. 38, pi. 6, fig. 7. 



* Godfrey, 1916, p. 118. 



