1895.] L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. 457 



say for certain, as the upperside is alone figured and that very badly, 

 while the description of the underside " Very pale brown, streaked and 

 mottled with white. Hindwing with two black spots at the anal angle 

 as above " is quite inadequate to distinguish the species. 



351. Nacaduba nanda, de Niceville. 



N. nanda, de Niceville, Journ. Bomb. Nat. Hist. Soo., vol. x, p. 34, n. 16, 

 pi. S, fig. 23, male (1895). 



352. Nacaduba nelides, de Niceville. 



N. nelides, de Niceville, Journ. Bomb. Nat. Hist. Soc, vol. ix, p. 280, n. 16, 

 pi. 0, fig. 24, male (1895). 



353. Nacaduba noreia, Felder. 



Hagen as nora. The Lycsena nora, of Felder, from Amboina, has 

 tails, and almost certainly equals N. ardates, Moore. N. noreia is 

 typically tailless, and was described from Ceylon from a female. I have 

 seen the type at Vienna, and it is what I have called the tailless form of 

 N. ardates. N. noreia occurs typically in Sumatra. "What I consider to 

 be its female, and of which we possess many specimens (all of them to 

 my eyes are obviously females, though Dr. Martin disputes the fact, as 

 he says he has taken them sucking up moisture on damp spots on the 

 roads, a habit quite unknown to female Lycsenidse, being confined to the 

 males), is very curiously marked on the underside, having the ground- 

 colour ochreous-yellow or luteous, in both wings with a very prominent 

 marginal series of black spots, those in the fore wing of equal size 

 throughout, in the hindwing counting from anteriorly backwards the 

 first and the sixth larger than the rest ; within this series of spots is 

 another submarginal obscure fuscous series ; no basal or discal markings 

 to both wings whatever. Dr. Martin proposes to call this " species " 

 Nacaduba lutea, and has described it in a paper published in Munich 

 entitled " Einige neue Tagsehmetterlinge von Nordost-Sumatra, pt. 1, 

 p. 1, n. 1 (1895), and I have figured it from a female in Journ. Bomb. 

 Nat. Hist. Soc, vol. x, pi. S, fig. 24 (1895). In Sumatra also occurs 

 typical N. ardates, which is tailed. This I hold to be a dimorphic 

 form in both sexes of N. noreia. Its female is most variable, some 

 forms of it from Burma in my collection being marked almost exactly 

 as in N. lutea, Martin, the basal and discal markings being almost 

 obliterated. I have not seen any females of true 2V. ardates with tails 

 from Sumatra. The Plebeius hupu, Kheil, from Nias = N. ardates, Moore. 



354. Nacaduba dana, de Niceville. 



If the species of Cyaniris are more restricted to higher elevations, 



