10 THE BUTTERFLIES OF CEYLON 
they have, as was to be expected, bred fairly true. The very 
small number of collectors in the Island prohibits experiments 
being carried out on a large enough scale to settle the question. 
17. MycaLesis (CALYSISME) RAMA, E.; Calysisme drusia, 
M.—Peculiar to Ceylon, and only found in the wet zone. 
Moore describes drusia from a single specimen taken in the 
Kottawa forest. M.vama has been taken there, and Moore’s 
description agrees fairly well with it. 
I procured specimens of the dry season form from 
Ratnapura in March, 1917. It differs in having the ocelli 
and other markings on the under side more or less obsolescent 
and the ground colour paler. The upper side is almost 
identical with that of the wet season form in both sexes. 
Till recently it was only known from specimens taken at 
Udagama (near Kottawa) by the late Mr. John Pole. It has 
now been discovered to be quite common in bamboo jungle 
at Ratnapura. 
I have never taken it personally, but have specimens given 
to me by Mr. Mackwood from Katnapura, and some caught 
by a native collector at Kottawa. 
It can be distinguished at once by the colour of the under 
side, which is ochreous brown, viz., far more yellow than in 
any other Ceylon Mycalesis. 
18. NiISSANGA PATNIA, M. Mycalests (Nissanga) patnia, E. 
The genitalia of this species differ so widely from those of 
Mycalesis in Ceylon, that I keep it in a separate genus. 
It shows considerable seasonal variation and very dark 
forms may be taken in the wettest districts. I have a fine 
series of them from Kandy, taken in June, July and August, 
and specimens from Deniyaya. 
It frequents jungle or shady roadsides and swarms on the 
fallen fruit of Ficus and other trees. It also comes readily 
to toddy, or sugar, but is easily alarmed. 
It is very common at Haldummulla all the year round, and 
in the South, at Galle and other places, but I have not yet 
come across it in the Northern Province. 
