THE BUTTERFLIES OF CEYLON 21 
brassy green ’’ (De N.). There are also constant differences 
in the markings, and it seems to deserve specific rank. 
Above 2,500 feet it seems rarely to settle, but is always seen 
flying fast and straight across country. In the low-country 
its Lehaviour is quite different ; it is usually found in jungle 
and settles high up in the trees, going off occasionally for a 
rapid fly round, but nearly always returning to the same 
spot. From this I fancy that the up-country specimens are 
probably all females searching for new breeding grounds. 
Unfortunately they are very hard to catch, so I cannot 
be certain. ’ 
Occurs at Haldummulla all the year round. In December 
and January the high wind sometimes forces them to settle 
in the tea, and they are then easy to catch. 
I have taken them on the Horton Plains (7,200 feet), and 
at Haputale (5,000 feet), Wellawaya (600 feet), Ratnapura, 
Kottawa, and Kegalla, and believe they are common 
wherever there is a fair rainfall. | 
35. EUTHALIA NAIS, B., E.; Symphaedra nais, M., DeN.— 
Also found in Southern India and the Himalayas. See Plate 
Ly, figs © 
Very variable in the amount of black on the upper side and 
white below. 
Very unlike the other Euthalias in Ceylon, both in appear- - 
ance and habits, except that both sexes come readily to 
toddy. The latter are far more like those of a Precis. It 
almost invariably settles on the ground, and if disturbed, 
flies very quickly for a short distance, returning to the 
original spot, usually in a few minutes. Very rarely 
individuals seem to be afflicted with the migrating mania, 
and may be met a few miles from their haunts, flying very 
fast and straight. These sometimes settle, but if disturbed 
go on straight away. I have noticed them in March and 
August on this estate, going straight in the direction of 
Adam’s Peak. If these are efforts to find new breeding 
grounds, they do not appear to be very successful. They 
are, so far as 1 am aware, only common in one very limited 
