458 L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. [No. 3, 
.the greater number of Nacadubas occur in the plains at low elevations; 
From the Central Plateau N. nelides , de Niceville, alone occurs, while 
N. pavana, Horsfield, and N. atrata , Horsfield, are found on the outer 
hills. All the other species occur in the plains. N. macrophthalma , 
Felder, N. kerriana , Distant, N. nanda , de Niceville, N. nelides , 
de Niceville, and N. dana are rare, the rest are more or less common. 
All Nacadubas- are very fond of water, the males are usually captured 
sucking up this element on damp spots; the females are rare in all the 
species, and never come to water. 
355. *Nacaduba perusia, Felder. 
Snellen. Originally described from Amboina. It is quite pro¬ 
bable I think that this species will be found to be a synonym of 
,N. atrata , Horsfield, which species appears to have been unknown to 
Dr. Felder. 
356. Jamides siraha, Kheil. 
Plebeius siraha, Kheil, Ilhop. Nias, p. 30, n. 91, pi. v, fig. 35, male (1884). 
Snellen as Plebejus [sic] plato. Hagen as bochus* Originally 
described from Nias. It is a very distinct species, the male having the 
lovely metallic steel-blue coloration on the upperside of the fore wing 
reduced to less than half the surface ; in J. bochus , Cramer, from 
India and Ceylon, that colour occupies more than two-thirds the surface. 
J. siraha is figured by Distant in Rhop. Malay., p. 222, n. J, pi. xxi, figs. 
19, male ; 16, female (1884), as J. bochus , var., from Province Wellesley. 
In Sumatra it is found all over our area, but is rare everywhere. 
Dr. Martin has specimens taken in February, April, October and 
November, and he caught a male at the door of his hospital at Bindjei 
on a flowering creeper ( Pharbitis nil , Chois.). 
357. Lampides celeno, Cramer. 
Snellen as celeno and agnata. Grose Smith. Hagen as celeno and 
malaccanus. This species is better known under the name of L. sell anus, 
Fabricius. The L. malaccanus of Rober, and L. agnata of Druce are 
both synonyms. 
358. Lampides cleodus, Felder. 
Originally described from Luzon in the Philippine Isles. L. pura, 
Moore, described from the Mergui Archipelago in Lower Burma, but 
which occurs also in Assam, Upper Burma, and Nias Island, is a 
synonym of L. cleodus. In Sumatra it is found at Selesseh and in the 
Battak mountains. 
