90 THE BUTTERFLIES OF CEYLON 
and pupate on the under side of tea leaves; these pupz are 
usually green. 
It is extremely variable and cream-coloured specimens 
are not at all rare. With one possible exception mentioned 
below, every specimen I have seen had three spots in the 
basal half of the cell, but Manders mentioned one in his notes 
in which the basal spot was ‘‘ almost obsolete. There is a 
form which I believe to be only a variety found in the wettest 
forests, the male of which was described by Moore as 
volundalis 8, probably because it is usually found in company 
with that species. It differs from normal silhetana in the 
narrower and more intense black borders to both wings, 
that on the fore wing being usually continued to the base of 
the costa, and that on the hind wing being clearly defined, 
never diffuse, as usual in st/hetana. The reddish-brown 
apical patch, when present, is a narrew streak from the costa 
to vein 4, as in hecabe. There are three basal spots in the 
cell. On the lower wing below there is a black streak across 
the angle at the base of vein 8, which I find in all my 
stlhetana, but never in hecabe or rotundalis. 
Mr. A. C. Hayley has given me a specimen, which I believe 
to be an aberration of st/hztana. The spots in the basal half 
of the cell have coalesced into one large irregular figure, and 
the black streak across the angle of vein 8 on the hind wing is 
wanting. 
156. TERIAS ROTUNDALIS, M. Occasionally plentiful in 
forests in the wettest zone, but rare elsewhere. Mr. Mackwood, 
who is by far the greatest authority on our butterflies, has 
always insisted on its claim to specific rank. See Plate 3, 
figs. 7 and 8. 
At the first glance the upper side of the ¢ is very like a 
variety of silhetana, but its rounded wings distinguish it. 
On the under side of the fore wing there is only one very dark 
streak in the basal half of the cell. It answers nearly to 
Bingham ’s description of andersoni, but in the specimens I 
have examined the inner margin of the black border of the 
fore wing is very rarely angulated on vein 7, and the ground 
colour of the under side is not noticeably paler than that of 
33 
