30 THE BUTTERFLIES OF CEYLON 
white discal band very much narrower and only extending to 
vein 6 on the hind wing, whereas in erota it extends to vein 2. 
The series of females in the Colombo Museum vary extremely 
in the width of this white band. In some it is almost obsolete 
on the hind wing, in others it extends to vein 5. In two of 
my specimens it just extends over vein 6. It also differs 
in the ground colour, that of evota from S. India being bronzy 
ereen instead of blue grey. The form with 3 ocelli on the 
lower wing, instead of 2, has been called ¢riocellata by 
Fruhstorfer. The female is not very rare, but I have not 
yetseen a male; it is only a minor variety, and hardly worth 
naming. 
The male is common at Haldummulla from May to August. 
It usually basks high up on trees, taking short flights, and 
returning to the same spot. It is also very frequently found 
settled on wet patches on the roads. It is then very easy to 
catch, as it is not at all shy. The female is rarer; it is 
usually seen flying fast and straight, but it occasionally stops 
at flowers. I once saw them in numbers at the blossom of 
Acacia caesia, while travelling in the coach from Polgahawella 
to Kegalle. I have specimens from Galle, Kandy, Wella- 
waya, Nuwara Eliya, etc. 
52. CIRROCHROA THAIS LANKA, E. 
Moore split it into thats, lanka, and cognata. De Nicéville 
gives lanka and cognata. He also mentions swinhoer trom 
Ceylon but says it is not “‘ sufficiently distinct to constitute 
a separate sub-species.’’ It is very questionable whether 
our specimens are distinct from the S. Indian thais. Bingham 
says: ‘‘ After carefully examining a long series of specimens 
from Southern India and Ceylon, I am quite unable to find 
any constant characters that would serve to distinguish 
C. lanka, Moore, from C. thais, Fabr.’’ He entirely ignores 
cognata and swinhoet, and I personally agree with him that 
there is only one species in Ceylon. It is extremely variable, 
but all varieties seem to grade. The males can be distin- 
guished by the different shape of the fore wing, that of the 
female being falcated. They also have a sex mark, the 
