1895.] L. de Niceville & Dr. L. Martin—Butterflies of Sumatra. 361 



1893 and 1894, Mr. de Niceville induced three amateur collectors in 

 British India to send down to Sumatra some of the well-known 

 Lepcha collectors from Darjiling to Dr. Martin's care. These men 

 met with very good success, though at first they were afraid to mix 

 with the cannibal Battaks and refused to go to the mountains. How- 

 ever, after giving them a Battak guide and interpreter they went off 

 to the hills regularly, and did very well there. 



A large proportion of the really rare endemic species of butter- 

 flies found in the island occur only in the mountains, from the lower 

 slopes of which and from the high Central Plateau, alone, are obtained 

 the interesting species that are common to the eastern Himalayas 

 and Sumatra, clearly showing the aforetime continuation of the Asiatic 

 continent by way of the Malay Peninsula through Sumatra to Java 

 and Bali, between which latter small island and the equally small island 

 of Lombok occurs the deep depression in the sea floor which forms 

 M Wallace's Line," dividing the Indo-Malayan from the Austro-Malayan 

 region. The most remarkable of these species which are common 

 to the Sikhim Himalayas and the mountains of Sumatra, but which 

 have not as yet been recorded from the intervening Malay Peninsula 

 are — 



Enispe euthymius, Doubleday. 



Pareba vesta, Fabricius, local race vestita, de Niceville. 



Apattera namouna, Doubleday. 



Neptis sankara, Kollai\ 



Argynnis niphe, Linnaeus. 



Limenitis danava, Moore, local race albomarginata, Weymer. 

 ,, dudu, Westwood, local race bockii, Moore. 



Cyrestis (Chersonesia) risa, Doubleday and Hewitson, local race 

 cyanee, de Niceville. 



Castalius ananda, de Niceville. 



An-hopala teesta, de Niceville. 



llerda spicles, Godart, local race ita, de Niceville. 



Bapala schistacea, Moore. 

 „ scintilla, de Niceville. 



Delias belladonna, Fabricius. 



Terias libythea, Fabricius. 



Huphina nadina, Lucas. 



„ nerissa, Fabricius, local race sumatrana, Hagen. 



Papilio cloanthus, Westwood, local race sumatrana, Hagen, 

 ,, payeni, Boisduval. 



Ctepitha purreea, Moore. 



Ealpe zema, Hewitson. 



