LYCANID. “RAPALA. 465 
being entirely jet black. The description also answers to R. nissa except the character given 
above as distinguishing it from 2. fara. 
1004. Rapala potosiris, Hewitson. 
Deudorix petosiris, Hewitson, Ill, Diurn. Lep., p. 22, n. 13, pl. ix, figs. 30, 31, wale (1863); Vadebra petosiriss 
Moore, Proc. Zool. Soc. Lond., 1883, p. 528; V. heretima, Moore (mec Hewitson), Journ, Linn, Soc. Lond., 
Zoology, vol, xxi, p. 43 (1886). 
HapsiTat: East India (Hewztsovz), Sikkim, Cachar, Sylhet, Orissa, Burma. © 
' Expanse: &, 2, 1°4 to 1°8 inches. . 
DESCRIPTION : ‘MALE. UPPERSIDE, doth wings rufous. Forewing with the costal margin 
and apex broadly brown. indwing tailed. UNDERSIDE, doth wings with two rufous-brown 
spots before the middle, crossed beyond the middle by a nearly straight rufous-brown band, 
and by an indistinct submarginal band of the same colour. Hindwing with the caudal spot 
and anal lobe dark brown, a submarginal white line near the tails) FEMALE. UPPERSIDE, 
both wings brown, slightly glossed with dull blue. UNDERSIDE, Azndwing differs from the 
male only in having the transverse band bordered below and near the inner margin on both 
sides with white,” (ewifson, 1. c.) 
Inthe male on the upperside the forewing is rufous, with the costa broadly, the apex 
still more broadly, the outer margin decreasingly (terminating in a point at the anal angle) | 
black. Hindwing entirely rufous except the costal and abdominal margins which are pale fuscous, 
and a narrow black anteciliary thread ; the anal lobe rufous-ochreous, with a fine outer white line 
reaching the base of the tail, the latter is black tipped with white. The underside of both 
wings is brown. Forewing with a blackish spot crossing the discoidal cell at its middle, two 
fine lines on the disco-cellular nervules, a gently curved discal line from the costa almost to 
the submedian nervure, and an indistinct submarginal fascia. Hindwing with a rounded spot 
placed on the raised glandular patch below the costa (in the male only of course, this spot being 
invariably absent in the female), two narrow disco-cellular lines, a discal irregular fascia posteri- 
orly curved upwards to the abdominal margin, where it is defined with a very narrow white line 
on both sides, an obscure ochreous submarginal rather broad fascia, anal lobe jet black, a small 
black spot on the margin inthe first median interspace, with a few scattered silvery scales 
between it and the anal lobe, and continued to the abdominal margin above the lobe. The 
female on the upperside is glossed with dull steel-blue, which colour merges into the blackish 
outer margins of the wings. 
R. petosiris is a fairly common species at low elevations in Sikkim ; Mr. Otto Moller pos- 
sesses specimens caught in August, October, November, and December. It occurs rarely in the 
hills of Orissa, also throughout Assam and in Burma. It isa very variable species, in speci- 
mens from a single locality such as Sikkim I find that the basal spots on the underside of both 
wings in both sexes are often entirely wanting, and that they are sometimes present though 
very small. 
Three other species of this group have been recorded from the Malay Peninsula. 
R. pheretima, Hewitson, may be known from its near ally 2. Aetoszris, Hewitson, by the male on 
the upperside having the rufous colour much restricted, confined to the disc of both wings, 
leaving all the margins broadly black. Mr. Moore has recorded this species from the 
Mergui Archipelago, but the specimens are now before me, and are quite typical 2. fetosiris, 
which is very distinct from typical 2. pheretima. The latter is typically a Bornean species, but a 
slight variety of it was described by Hewitson from Singapore. Mr. Moore also gives Tounghoo, 
Burma, as another locality for it. &. seguetva, Distant, and 2. wtimutis, Distant, may perhaps 
be known from #. Zefosiriz, the former by having the discal band on the underside of the 
hindwing strongly dislocated, the band on the forewing more curved; the latter by having the 
discal band of the forewing sinuous, much bowed outwardly in the middle and reaching the 
submedian nervure, very broad and prominent on the hindwing. As the spots on the underside 
