396 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 



Melanitis, Amathnsia and Thaumantis flying at the same time. Only when 

 they come down to rest, or to deposit their eggs are they caught. The 

 larva feeds on different Graminese, Dr. Martin has found them even on 

 the famous Lalang grass (Imperata arundinacea), and on the sugar- 

 cane (Saccharum officinale). The larva3 always keep in pairs, never 

 more than two together; they rest with the head downwards, 

 and eat the lower portions of the leaves on which they rest. 

 The pupa is quite green, and is very similar to that of A. phidippus. 

 J). necJio is not found at a higher elevation than Bekantschan. It is pro- 

 hable that B. necho, Felder, D. cheops, Felder, and D. dis, de "Niceville, 

 from Java, Borneo and Sumatra respectively, all represent a single 

 species, of which the first-named is the oldest. 



115. Discophora sondaica, Boieduval. 



Hagen. Distant. Dr. Hagen records D. tidlia, Cramer, as well as 

 this species from Sumatra, hut according to Mr. Moore, D. tidlia is con- 

 fined to China, especially to Hongkong. In all Dr. Hagen records four 

 species of Discophora from Sumatra; we know two only. It is found at 

 lower elevations than D. necho, Felder, not much higher than Bindjei, 

 where it is not uncommon near bamboo hedges. The females as usual 

 in the genus are much rarer than the males. Dr. Martin obtained his 

 first female from a pupa which he found near the manager's house of the 

 Bekalla Estate under the roof of a small attap shed on the riverside 

 near a thicket of bamboos. The female is much more beautiful than 

 the same sex of D. necho, which has only a broad oblique yellow band 

 across the forewing on the upperside. 



116. Enispe euthymius, Doubleday. 



Hagen as errfymius [sic]. Sumatran specimens resemble the dark 

 form of this species found in Assam and Burma which has been named 

 E. tessellata by Mr. Moore, but which is certainly not a distinct species, 

 as it is found in some localities with, and grades imperceptibly into, 

 the typical form. Its occurrence in Sumatra while apparently absent 

 from the Malay Peninsula is an interesting fact in geographical dis- 

 tribution. It is everywhere rare, and in Sumatra is found only on the 

 Central Plateau, and is occasionally brought in by the Battak collec- 

 tors. Dr. Hagen states that he has always obtained this species together 

 with Limenitis bockii, Moore, which is a curious coincidence. 



117. Clerome arcesilaus, Fabricius. 



Grose Smith. Snellen. Hagen. Distant. The commonest species 

 of the genus in Sumatra as elsewhere. 



