42 L. cle J^lceYilh^Biitterflies from tlie Tndo-Malayan region. [No. 1, 



hairs. Hindwing at the apex with a short dull ochreous-brown stih- 

 marginal line ending in the second median interspace in a narrow black 

 line ; four short black lines placed in echelon across the disc, one each 

 in the second and first median, submedian and internal interspaces; the 

 three large round black spots on the margin towards the anal angle 

 as on the upperside, but larger, more prominent, and of a deeper shade, 

 the one on the anal lobe with a black line placed against it anteriorly ; 

 between the anal lobe and the line above it are a few pale greenish 

 metallic scales, the middle black spot also bears a few similar scales 

 scattered over it ; a fine black anteciliary thread traverses the whole 

 length of the margin and extends as above for a short distance along 

 the bases of the tails. Head, thorax, and abdomen above pale blue ; 

 beneath, 'palpi and legs white. The antennce are very interesting — the 

 club and shaft above are black, but the shaft beneath is pure white. 



Unfortunately I possess no male specimen of the type species of 

 the genus, Neoeheritra amrita, Felder, with which to compare the struc- 

 ture of JV. namoa. As far as I can judge, however, it comes into that 

 genus, as it possesses four subcostal nervules and a tuft of hairs attached 

 to the inner margin of the forewing and turned under and forwards, and 

 the cup-like depression (as seen from above) to the hindwing mentioned 

 by Hewitson as found in the typical species. Both Hewitson and 

 Distant figure the male of N. amrita, from which N. namoa differs on 

 the upperside in the forewing having the blue area of less extent, in 

 the hindwing in having the black apical area twice as large, in both the 

 tails being very considerably shorter, and on the underside in having 

 the apical area of the forewing dull brownish-ochreous, not deep ful- 

 vous or reddish-ochreous. I have female specimens of N. amrita from 

 Porak, Singapore, and Sumatra. To this genus probably belongs the 

 very distinct " Sitlion " teunga, Grose Smith, from Borneo.* Another 

 allied species is " Hypolycmna " clwlla, Weymer,t from the Island of Nias, 

 of which I possess a female specimen. It has much shorter tails than 

 N. namoa, and the discal series of black spots on the underside of the 

 hindwing instead of being placed in echelon are arranged in a straight 

 line, as they are also in N. amrita. The ground-colour of the two species 

 on the underside agrees exactly, but N. clrella (the species is a true 

 Neoeheritra) has the dull brownish-ochreous coloration moi'e extensive 

 on the forewing. Probably still another allied species (which 1 have not 

 seen) is " Sithon " paluana, Staudinger, from Palawan in the Philippines. J 

 Described from an unique specimen taken on 21st May, 1893, in the 



• Ann. and Mag. of Nat. Hist., sixth series, vol. iii, p. 317 (1889). 

 t Stet. Ent. Zeit., vol. xlviii, p. 10, n. 8, pi. ii, fig. 5, female (1887), 

 X Irie, vol. ii, p. 107, pi. i, fig. 9, female (1889). 



