LYCENID. ARHOPALA. 241 
792. Arhoyala vihara, Felder. 
Amblypodia vihara, Felder, Wien. Ent. Monatsch., vol. iv, p. 395,n. 5 (1860) ; id., Kheil, Rhop. der 
Insel Nias, p. 33, n. 122 (1884) ; Arhofala vihara, Felder, Reise Nov., Lep., vol. ii, p. 228, n. 253, pl. xxix, 
fig. 7 (1865) ; id., Moore, Proc. Zool. Soc. Lond., 1878, p. {835 ; Navathura vihara, Distant, Rhop. Malay., 
Pp. 270, n. 16, woodcut n. 85 (1885). 
HasiraT: Taoo, Upper Tenasserim, 3,000-5,000 feet (4Zo0re) ; Malacca interior (Felder) ; 
Nias Island (Xkei/). 
EXPANSE: 2'0 inches. 
DESCRIPTION: ‘MALE, UPPERSIDE, doth wings deep violet-blue. Forewing with a 
blackish-fuscous costal margin rather broader exteriorly, Aindwing witha fuscous costal 
border passing on into a broadish exterior border increasing in width, and with the interior 
border also fuscous. UNDERSIDE, doth wings light fuscous, with a submarginal fascia common 
to both. forewing witha pair of annular spots within the cell, of a deeper tint than the 
ground-colour, a disco-cellular spot, two spots below the median nervure, a chain-like exterior 
fascia ending at the first median nervule and broken at the third median nervule. AWindwing 
with five annular basal spots of a deeper tint than the ground-colour, a sixth spot internal, a 
small discoidal fascia in three pieces, an exterior chain-like fascia broken at the second subcostal 
nurvule close to the small fascia, bent upwards posteriorly and continuous ; all these markings 
fuscous and margined with a much paler tint. Morewzng with the internal third of its surface pale, 
Hindwing with three black anal spots increasing in size, the middle spot entirely, the other two 
only inwardly sprinkled with metallic blue. FEMALE. UPPERSIDE, both cwings of a paler tint 
than those in the male, Forewd2g, with a sinuous costal margin, and a broad exterior margin 
fuscous. Aindwintg with the costal border passing on into the exterior border of the same 
colour, the interior margin paler brown, UNDERSIDE, J0¢h wings altogether as in the male.” 
¢ Strikingly different from the above-described species [A. agnis, Felder] in the much 
darker and moderately broad-bordered upperside of the male. The forewing is blunter and 
the hindwing shorter and more produced at the apex than in 4. aguis, Felder.” (Felder, 1. c 
in Reise Novara.) 
I have not seen this species, nor has Mr. Distant obtained it from the Malay Peninsula. 
Unfortunately, no figure has been given of the upperside of the male, and it is impossible to 
gather from the description alone what is the width of the black border. The underside has 
been figured, and appears to agree very closely with that of 4. agnis, Felder. The dis- 
tinctive characters of A. vihara, as compared with A. agzis, appear to be its rather smaller 
size, the deep instead of brilliant violet-blue of the upperside of the male; the uncertain 
width of the black outer border, which isso narrow in A. agzis that it can hardly be said 
to exist, hardly extending inwardly beyond the cilia. A. vzhara is still nearer to A. amantes, 
Hewitson, from which it may be known by the discal band on the underside of the hindwing 
being anteriorly split up into three pairs of spots, instead of being continuous. 
793. Arhopala atosia, Hewitson. (FRONTISPIECE, FIG. 138 $). 
Amblypodia atosia, Hewitson, Ill. Diurn. Lep., p. 9, n. 37, pl. ii, figs. 8, 9, ferzale (1853) ; id., Druce, Proe. 
Zool. Soc. Lond., 1873, p. 353,n. 4; id., Butler, Trans. Linn. Soc. Lond., Zoology, second series, vol. i, 
p. 548, n.5 (2877); Narathura atosia, Distant, Rhop. Malay., p. 265, n. 7, pl. xxiii, figs. 6, male; 5 
Semale (1885). 
costa, commencing with a small one and getting gradually larger and ending on the first median nervule at the 
end of the band ; all the spots brown, surrounded with yellowish-white, the white borders being clearest round 
the two spots in the cell and the two outside it. Azxzdwing with four or five brown spots near the base, a 
central whirl [? whorl] of spots of the same colour, disconnected, and irregular like a zigzag band,a discal 
whorl of similar spots but paler, and the space on each side filled in with other bands of spots so pale as to be 
only here and there visible ; a black spot at the anal angle, and a white silvery streak on the margin running 
from this spot to the first median nervule, and clouded with dark brown atoms, Tails black, tips white.” 
Both wings with the margins brown, diffused inwardly. (Sz7hoe, 1. c.) 
Colonel Swinhoe describes the male of his 4. afed/aas having a deep costal band on the upperside of the 
forewing. This is incorrect, the description applies to the female, and he has evidently reversed the sees. The 
shade of colour on the underside is not a specific character, in both A. centaurus and A. amantes it is extremely 
variable, the dark-coloured specimens coming from districts of heavy rainfall or are seasonal forms occurring 
in the rains ; the light-coloured examples occur in dry localities or during the dry season. 
31 
