390 L. de Niceville & Dr. L. Martin —Butterflies of Sumatra. [No. 3, 
Staudinger as panther a, Fabricius, var. lutescens , Butler. Wallace. Very 
rare in the forests of the plains and as high as Namoe Oekor. This 
insect is perhaps not really as rare as it appears to be; as it greatly 
resembles on the wing a brown Euploea , it probably often from this cause 
escapes the notice of the collector. 
95. Elymnias dara, Distant. 
E. dara, Distant, Ann. and Mag. of Nat. Hist., fifth series, vol. xix, p. 50, 
n. 86 (1887). 
This species was described from Northern Borneo. An allied spe¬ 
cies is the E. albofasciata , Staudinger, fiom Palawan in the Philippine 
Isles, described in Iris, vol. ii, p. 39 (1889). We have not had tbe 
opportunity of comparing E. dara and E. albofasciata from typical 
localities, but a female of the latter from Palawan kindly sent to me by 
Dr. Staudinger agrees exactly with Sumatran specimens of the same sex. 
The Burmese species, E. dsedalion , de Niceville, is certainly distinct 
from the Sumatran and Philippine form which we here identify as 
E. dara , but whether it is separable from E. dara from Borneo we cannot 
say. It is very rare in Sumatra, and bas been brought in from the 
Gayoe and Battak mountains from high elevations only. 
96. Elymnias ( Melynias ) laisidis, de Niceville, n. sp. 
Grose Smith as lais. Hagen as lais , Horsfield and Moore [sfe]. 
Wallace as lais. Distant as lais. 
Habitat: N.-E. Sumatra. 
Expanse : d 1 , 2 9 to 3’3 ; 9 , 3’5 to 3'7 inches. 
Description: Male. Very similar to E. lais , Cramer, from Nias, 
Java, and Borneo. Female. In general appearance very similar to the 
same sex of E. malelas , Hewitson, from Sikhim, Bhutan, Assam, and 
Burma, the wings being greatly elongated, and the forewing on the 
UPPERSIDE having the apical half strongly washed with purple. 
I possess a single female only of E. lais from Java, from which 
the female of E. laisidis differs in its more elongated forewing 
glossed with purple on the upperside. Dr. A. R. Wallace has des¬ 
cribed but not named the Sumatran form of E. lais in Trans. Ent. Soc. 
Lond., 1869, p. 325, n. 11. E. laisidis occurs nearly always near human 
habitations, and Dr. Martin feels sure that the larva feeds on bamboos, 
as the females are always seen flying along the bamboo hedges surround¬ 
ing the gardens of Malay houses. It occurs most commonly in Decem¬ 
ber and January, and in some years (1892 and 1893) was unusually 
abundant, being seen almost in swarms. In India the allied E. timandra , 
Wallace, has been noted in the Kliasi Hills of Assam occurring in 
