1895.] L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. 395 



112. Thaumantis (Eringana) noureddin, Westwood. 



Occurs at tlie lowest elevations and nearest the sea of all the 

 species in the genus, as nearly all specimens obtained by Dr. Martin 

 came from Kampong Stabat, and were caught in forests on both sides 

 of the Wampoe River. He also obtained one pair as far south as 

 Asahan. 



112. Thaumantis (Eringana) lccipor, Westwood. 



The commonest of the three Sumatran species of the genus. It 

 appears as low down as Bindjei, and is found as high as Namoe Oekor. 

 Dr. Martin caught his first specimen of this species, a female, in June, 

 18S8, at 7-30 p. m., flying along the white walls of his hospital so 

 that he could just distinguish it to be a butterfly. In this species the blue 

 reflections of the male on the upperside of both wings are so richly bril- 

 liant and powei-ful that in opening the wings of a closed specimen the 

 pinchers used are strongly coloured with blue like the wings. All Thau- 

 mantides are inhabitants of the high virgin forest. They all like shade, 

 and are on the wing very late after sunset. All are fond of the ripe 

 fallen fruit of the Sumatran sugar-palm (Arenga saccharifera) on which 

 they regale themselves in the shadow of the tree. They rest with 

 closed wings, and only display their rich blue coloration when on the 

 wing. 



113. *Tenaris birchi, Distant. 



Originally described from Singapore. Recently taken by Dr. 

 Hagen in Mandaheling, a Malay state in Western Sumatra. 



114. Discophora necho, Felder. 



Hagen as necho, Felder, var. cheops, Felder. Staudinger as cheaps. 

 Semper as cheops. I described this species as D. dis (Journ. Bomb. Nat. 

 Hist. Soc, vol. vii, p. 325, n. 3, pi. H, fig. 3, male (1892). D. necho is 

 a common species, and is found also in Java and Borneo. Semper 

 records D. celinde, Cramer [should be Stoll] as well as D. necho 

 from Sumatra. As D. celinde was described from Java where 

 D. necho also occurs undoubtedly, it may be that both D. celinde 

 and D. necho occur also in Sumatra. Amathusia phidippus, Joh- 

 anssen, is the commonest, and D. necho the next commonest species 

 of the subfamily in Sumatra. The males are very fond of fre- 

 quenting faeces on roads, from which they fly into the jungle 

 when disturbed, but return again as soon as danger is past. The females 

 are much rarer, and only fly in the evening after sunset and then only 

 very high up in the air, so that they can hardly be distinguished from 

 J. n. 50 



