LYCANIDA. RATHINDA. 413 
Gonus 168.—RATHINDA, Moore. (PLATE XXIX). 
Rathinda, Moore, Lep. Cey., vol. i, p. 99 (188r). 
‘© Wings, small. FOREWING, short, triangular ; costa arched in the middle, exterior 
margin slightly convex ; costal nervure very short [normal in length], not extending to quite half 
the wing ; first subcostal nervule emitted at half the length of the cell, second at one-third, and the 
third at one-fifth before the end, fourth from the end of the cell ; désco-ce//u/ar nervules nearly 
erect, radial from their middle ; discoidal cel] extending to more than half the wing; second 
median nervule at one-sixth, fst median at one-fifth before the end of the cell ; submedian 
wervure slightly waved. HINDWING, short, broadly oval, exterior margin indented above the end 
of the third median nervule and thence broadly lobular to the anal angle ; both sexes furnished 
with three slender ¢ails ; costal nervure arched at the base ; first subcostal nervule at one-fourth 
before the end of the cell ; désco-cellular nervules recurved, radial from their middle ; discoédal 
cell broad ; second median nervule at one-sixth, frst at one-third before the end of the cell ; 
submedian nervure straight, internal nervure recurved. BoDy, moderate, abdomen extending 
to anal angle [in the male only, much shorter in the female] ; palpi very long, porrect, slender, 
second joint extending two-thirds beyond the head, third joint one-third length of second ; /egs 
squamose 3 avtenne with a gradually-thickened club. Type, R. amor, Fabricius.” (Joore, 1. c.) 
Larva, cylindrical, armed with numerous curved upright tubercles of varying length. 
PupPA, normal. 
In Mr. Moore’s description above it will be observed that, in speaking of the forewing, he 
treats the upper discoidal as a fourth subcostal nervule, and terms the lower discoidal the radial 
nervule. In the forewing the costa is considerably arched, the costal nervure and subcostal ner- 
vules lying far apart ; the costal nervure extends to about opposite to the apex of the discoidal 
cell ; the first subcostal nervule is slightly bowed upwards soon after its origin towards the costal 
nervure, from which however it is well separated ; the origin of the second subcostal is rather 
nearer to the base of the first than it is to the base of the upper discoidal ; there is of course 
no upper disco-cellular nervule, the middle disco-cellular originates from the upper discoidal 
soon after the origin of the latter, and is slightly outwardly oblique ; the lower disco-cellular 
as long as the middle disco-cellular, and slightly inwardly oblique ; the second median nervule 
has its origin a little before the lower end of the cell. In the hindwing the first subcostal ner- 
vule originates some distance before the apex of the cell ; the disco-cellular nervules are of 
about equal length, outwardly oblique (the lower slightly less outwardly oblique than the upper, 
the two veins therefore not quite in a straight line), the upper sinuous, the lower straight ; the 
second median nervule originating just before the lower end of the cell ; submedian nervure 
straight, internal nervure with its base straight and lying close to the base of the submedian 
nervure, then suddenly strongly bowed outwards, rather short. The tails are short and filiform, 
the middle tail at the termination of the first median nervule longer than the one on either side 
of it; the anal lobe is small. Eyes naked. Palpi much longer in the female than in the male. 
The genus Lathinda contains but a single species, which is brown on the upperside, 
with an oblique transverse discal macular white or ochreous band on the forewing, anda 
submarginal reddish-ochreous band on the hindwing. The underside is very beautifully 
marked, the apex of the forewing is ochreous-brown, the base of the forewing and the entire 
hindwing is sometimes pure white, sometimes pale ochreous-brown or greyish-ochreous, 
sometimes entirely ochreous, marked with dark ochreous-brown lines, patches and spots ; the 
hindwing with a submarginal metallic silvery-green line. The middle tail is about twice as long 
as the one on either side of it. The male has no secondary sexual characters. Its distribution 
is confined to eastern and southern India and Ceylon. Its full-grown larva is most aberrant, 
and were the characters exhibited by the skins of full-grown larvee of much if any value in 
showing the alliances of genera they would in this case seem to link Rathinda to Spalgis, 
Moore, which also has the larva furnished with tubercles; these appear in that genus to be 
even longer than in Rathinda, 
