27 
1891.} W. Doherty — A List of the Butterflies of Engano. 
25. Neptts ombalata, Kheil, var. engano. Like the Nias form 
described by Herr Kheil, but on the upperside the subapical white spots 
are smaller and better separated, the two lines of submarginal lunules 
distinct, and the upper white band of the hindwing much narrower and 
more broken. The colour of the underside is a rich red-brown, and the 
black borders of the white bands are very conspicuous. 
Family Lyc.enida:. 
Subfamily Aphnceince. 
26. Hypolycaxa thecloides, Felder. This butterfly occurs locally 
in the Nicobars and the Malay Peninsula, and seems to feed on some 
shore-plant. It seemed scarce in Engano. 
27. Eooxylides tharis, Hiibner. Common in the forests of the 
interior. The specimens are smaller than Sumatran ones, with the 
inner black fascia of the underside obsolescent. 
28. Bindahara sugriva, Horsf. Only two males taken, both quite 
normal. Herr Kheil mentions B ■ phocides in his Nias list, probably by 
mistake. I have taken sugriva in Great and Kar Nicobar, and again in 
Java. 
Subfamily Beudorigince. 
29. Deudorix epiarbas, Moore. The cell of the forewing is touched 
with red in the female. 
Subfamily Lycmnince. 
30. Nacaduba Ardates, Moore. Common. 
31. Nacaduba viola, Moore. Only one or two seen. 
32. Nacaduba prominens, Moore. Scarce. 
33. Nacaduba macropiithalma, Felder. Scarce. None of these 
species are mentioned as occurring in Nias, but Herr Kheil s Plebeius 
kxipu is apparently the female of N. viola. 
34. CatochRysops strabo, Fab., var. lithargyria. I think the true 
strabo was also seen, and no doubt 0 . pandava and cneius also occur. 
Those species all seem to feed on a leguminous plant growing on the sea- 
beach, and are found on many small islands. Catoehrysops pandava is per- 
