CEYLON BUTTERFLIES. 153 
a seasonal variety. Intwoof my specimens from the dry zone 
this fourth band does not reach the median nervure, and is 
triangular ; those from the wet zone agree with Rothschild’s 
description. The specimens in the Colombo Museum vary 
much in this respect, and in one the band is very acutely 
triangular; unfortunately it has no label of locality. It is 
so rare and so variable in every respect that ic is difficult to 
say whether it is a local race or not, but dry zone specimens 
seem to agree approximately with Bingham’s description of 
alcibiades. 
The only place where I have personally taken it is at 
Sirigalla, near Muppane, in the low-country of Uva. I found 
it settled on wet sand in the bed of astream. A native catcher 
has brought me specimens from Ratnapura, Kottawa, and 
Deniyaya. All my specimens are males. 
“Found in the Ratnapura District February to June and 
October to December ” (F. M. Mackwood). 
187. PatHysa nomius, M. & E.; Papilio nomius, De N. 
& B.—Also found in India. 
This is usually rare in Uva, but it occasionally appears in 
great numbers at the commencement of the north-east 
monsoon. In October, 1893, I found it in hundreds settled 
on the wet roads near Wellawaya, and I have heard of two 
similar swarms in the same district since. It joins in the 
flights, and I have notes of its occurrence above Haldummulla 
at an elevation of 5,000 feet. I have also seen it in great 
numbers on the road from Trincomalee to Dambulla, and have 
received specimens from Kandy. 
It varies a great deal in the width of the black markings, 
dry season forms being much lighter than those taken during 
the rains. I have not yet obtained specimens from the wet 
zone, though it is found there. 
‘‘Numerous on roads to Trincomalee. Caught at Kottawa”’ 
(F. M. Mackwood). 
188. ZxtTipEsS poson, M. & E.; Papilio jason, De N.; 
Papilio eurypylus jason, B.—Evans gives doson as peculiar to 
Ceylon, and eleius as the Southern Indian race; Bingham and 
De Niceville give jason from both Ceylon and Southern India. 
Moore divides our Ceylon race into doson and telephus. He 
