THE BUTTERFLIES OF CEYLON 89 
in expanse is very common at Haldummulla. 
While in the Northern Province in November, 1915, and 
January, 1916 (wet season), I noticed that a large number of 
specimens showed exceptionally few markings on the under 
side. I caught many with both spots in the cell wanting, 
others with only one spot, and even a specimen with two 
spots on one wing and none on the other. More than half of 
those I caught were abnormal. I have subsequently found 
similar varieties plentiful at Haldummulla, Kottawa, etc. 
On the upper side the markings are normal, but the colour 
of the females is rather paler than usual, the under side of 
the hind wing being, as a rule, very pale. There are two 
specimens in the Colombo Museum labelled 7. savi, which 
are, I believe, only this variety of hecabe. They are very 
unlike Indian specimens of sart. 
It is one of the commonest butterflies everywhere in the 
Island, and both wet and dry season forms fly together all 
the year round. 
The colour is much affected by cyanide; specimens which 
have been kept too long in the killing bottle are often changed 
to deep orange. 
155, TERIAS SILHETANA. Moore gives citvina, uniforms, 
and templetonit. From the illustrations the two former are 
clearly only varieties of silhetana, and the latter is described 
as having three spots in the cell. Also found in India, 
Burma, and Malaya. 
It is as common as the last in the hills, but less plentiful in 
the low-country. I have taken it all over the southern half 
of the Tsland, but not so far in the north. When Albizzza 
moluccana was first planted through the tea it became a pest, 
but latterly its natural enemies have kept it fairly well in 
check. The best way to get fine specimens and varieties is 
to find an Albizzia leaf of which all the soft part has been 
eaten, and the pupe are hanging about an inch apart along 
theribs. Thirty to forty pup# may be found on one leaf, and 
a fine series of varieties will probably hatch out, as the wet 
and dry season forms fly together. These pupe on Allizzia 
leaves are always black, but'a few larve sometimes descend 
