34 SPOLIA ZEYLANICA. 
I know nothing of this, so,asked Mr. Mackwood for par- 
ticulars. He writes: ‘ Alella ceylonica is a distinct species or 
sub-species. Major Manders described it. So far it has only 
appeared in one valley in the Nitre Cave, surrounded by 
6,000 feet hills, except towards the north-west and east, 
where it faces the Bintenna country. ‘The butterflies are found 
from 2,000 to 4,000 feet. Principal appearance, May-June. 
A few at end of tke year.”’ 
I possess a pair given to me by Mr. Mackwocd. 
64. ERGOLIS TAPROBANA, M. & De N.; Lrgolis merione 
taprobana, B. & E.—Also found in Southern India. A well- 
defined race, which, in Ceylon at any rate, shows very little 
variation. 
Common all over the Island up to 6,000 feet at least. ‘The 
wings, especially of the females, seem to split extremely easily, 
and perfect specimens are not easy to procure. 
Found at Haldummulla all the year round, but is only 
numerous in the flights. I have seen it at Galle, Jaffna, 
Mannar, &c., and up to 6,000 feet at Ohiya. 
65. ERGOLIS ARIADNE, De N., B., & E.; Lrgolis minorata, 
M.—Also in India, Burma, Malaya, Formosa, &c. 
Flights with the last at Haldummulla, but is rather more 
numerous. It is far easier to catch perfect. 
It is found in the same localities as the last, viz., all over the 
Island. 
66. Bypiia miruyis, M., De N., & B.; Byblia ilithia, E.— 
Central and Southern India, Africa, Arabia, &c. 
An extremely local fly, and is apparently gregarious. .In 
March, 1909, I found numbers,settled on a small bush at 
Palatupane, in the Hambantota District, but in all my 
subsequent visits there I have never seen another specimen. 
I have specimens from Anuradhapura and Giant’s tank, 
and caught one very battered female at Kankesanturai, 
probably the sole survivor of a brood. | 
It is apparently confined to the driest districts of the 
Island. . 
If disturbed, it flies off fast and low, but is almost certain 
to return in a few minutes,.and can be found in the same place 
day afier day. 
