1895.] L. de Niceville & Dr. L. Martin —Butterflies of Sumatra. 3G1 
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 
“ 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. 
Apatura namouna , Doubleday. 
Neptis sankara, Kollar. 
Argynnis niphe , Linngeus. 
Limenitis danava, Moore, local race albomarginata, Weymer. 
,, dudu , Westwood, local race bockii, Moore. 
Cyrestis ( Ghersonesia ) visa, Doubleday and Hewitson, local race 
cyanee, de Niceville. 
Castalius ananda , de Niceville. 
Arrhopala teesta , de Niceville. 
llerda epicles , Godart, local race ila , de Niceville. 
Papala 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. 
Gupitha purreea , Moore. 
Halpe zema, Hewitson. 
