448 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 
Martin obtained only two males of this rare species at Bekantschan in 
March and May. 
305. Poritia Sumatra, Felder. 
Felder. Butler. Grose Smith. Kirby. Distant. Originally des¬ 
cribed from Sumatra. A very distinct and easily recognised species 
which shews but little variation. Occurs in the Battak mountains. 
306. Poritia erycinoides, Felder. 
Grose Smith. Hagen. Felder originally described and figured a 
male from Java, Hewitson described and figured the female as P. phra - 
atica from Singapore, the latter being black on the upperside marked 
with orange. I have a good series of both sexes from Java, which 
agree with Sumatran ones from the Battak mountains. 
307. Poritia pleurata, Hewitson. 
The type of this species was from Singapore. The male may be 
known from P. erycinoides , Felder, by having the apical half of the fore¬ 
wing on the upperside black and unmarked instead of heavily marked 
with blue. The female of P. pleurata is marked with blue in some 
lights, green in others. Occurs in Sumatra at Bekantschan. 
308. Poritia promula, Hewitson. 
Originally described from a female from Java. Dr. Martin possesses 
female specimens which agree very well with Hewitson’s figures and 
description. 
309. Poritia philota, Hewitson. 
Hewitson. Grose Smith. Kirby. Originally described from 
Sumatra, where it occurs at Selesseh and in the Battak mountains. It 
is found also at Pahang and Johore in the Malay Peninsula. The 
female is unknown. The male is easily distinguished by the very 
dark colour of the underside, Mr. Hewitson calls it “ rufous-brown, mi: 
dulated throughout with paler colour.” I would describe the ground¬ 
colour as fuscous, the macular bands very close together, dark ferru¬ 
ginous in colour, outwardly defined with black. 
310. Poritia plateni, Staudinger. 
P. plateni , Staudinger, Iris, vol. ii, p. 104, pi. i, fig. 8, male (1889). 
Originally described from two males from Palawan in the 
Philippine Isles. It is a most distinct species, all the bands of the 
underside present in every Poritia are in this species broken up into well- 
separated spots* I he P oritias in the male sex have perhaps on the 
