NOTES. 283 
Terias rotundalis.—Moore in his “‘ Lepidoptera of Ceylon” des 
cribes and figures this species. Subsequent authors have treated 
it as a variety of Terias silhetana, partly, I believe, because 
they have never seen a specimen, and partly owing to Moore’s 
reputation for splitting the butterflies into unnecessary species. 
Mr. Mackwood, who is by far our greatest authority on the 
subject, has for many years insisted on its specific rank. 
I saw my first specimens in February last, when I was 
lucky enough to catch one in the Kottawa forest, near Galle. 
Mr. Mackwood gave me another specimen from Ratnapura, 
and I found one in the Museum collection from Peradeniya 
labelled Teria silhetana. 
I give a short description :— 
Male (I have not examined a female yet).----Wings short and 
more rounded than in silhetana or hecabe, hence the name 
rotundalis. 
Upperside: Colour a very bright citron-yellow. Black 
border very similar to 7’. silhetana, but of a far more intense 
black. Not sharply angulated on vein 7 as in 7’. andersont. 
Lower Wing: Narrow terminal border intense black, broader 
anteriorly, extended along veins near apex as a fine streak. 
Underside : Can be distinguished at once from 7’. silhetana 
by having only one streak in cell, whereas silhetana has 
invariably three. Narrow black border to upperwing, extended 
as a triangular black patch down each vein from 4 to 11. In 
place ef the pre-apical red patch in hecabe and silhetana, 
there is a slight dusting of intense black scales. 
Lower Wing: Markings as in silhetana, but narrow black 
border from vein 7 to tornus, slightly thickened at end of 
each vein. General colour of underside quite as bright as 
upper, not paler as in 7’. andersoni. 
Sexual mark similar to szlhetana. 
Thorax and abdomen much blacker above than in any other 
Ceylon Terias ; yellow below. Antenne longer in proportion 
to size than in silhetana. 
Habits : So far as is known is found in the forests of the 
wettest zone. The Peradeniya specimen is probably an 
accidental visitor. 
Haldummulla, April 6, 1916. W. ORMISTON. 
