46 SPOLIA ZEYLANICA. 
This I believe to be pavana, though it is considerably 
larger than the specimens of pavana I have seen from the 
Andamans. 
N. macropthalma is not rare in parts of the low-country of 
Uva and at Ratnapura, but I have taken very few specimens 
as high as 3,000 feet. 
N. pavana is not rare at Galle and elsewhere in the wet 
zone, and I have a few specimens from Haldummulla. 
Both forms vary enormously in almost every particular, 
but I have insufficient material to hazard any opinion as to 
how the group may be subdivided in Ceylon. 
92. Nacapuspa vionA, M. & E.; Nacaduba hermus, 
B. & De N.—Also found in India, Burma, Malaya, and 
Australia. : 
Very rare. I have taken about half a dozen males settled 
on wet roads in Haldummulla, but I have never seen a female. 
I have seen a male caught at Hirumbara, near Galle, and 
another from Deniyaya. 
It can be distinguished at once from any other Ceylon 
nacaduba by its very pointed wings. It varies very much in 
size. 
93. NacaDUBA DANA.—Also in India, Burma, &c. Not 
mentioned by Moore. , 
This can be at once recognized by the fact that it is the only 
Ceylon nacaduba which does not possess the conspicuous 
large black spot in interspace 2 of the under side of the hind 
wing. There is only a minute spot, nearly equal in size to the 
one in the tornal angle. 
It is not given in any of the Ceylon lists, but I have taken 
mote than a dozen males settled on wet roads, or in beds of 
streams, at Haldummulla, and in May, 1916, I found it very 
abundant at Wellawaya, and also took one at Tanamalwila, 
on. the borders of the Southern and Uva Provinces. - I have 
also got it from Ratnapura. 
It is tailless, and may easily be mistaken for a tailless 
ardaies when settled, but is of a distinctly lighter blue when 
flying. 
The female is very rare, and I have only taken two speci- 
mens. 
