514 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. VIII. 
T. apicalis appears fairly distinct, it is represented in the British 
Museum, as far as I remember, by two specimens only, both dry-season 
forms. | 
T. sari, Horsfield, is possibly a distinct species. Mr. Butler speaks 
of it as ‘‘ purely Malayan,” but I took a perfectly typical specimen in 
the Nilgirisin January. It occurs fairly commonly in Burma, and 
seems very constant. The shape of the marginal band on the forewing 
and the entirely brown apical patch on the underside are very distinc- 
tive, but before the species can be considered established, some character 
should be pointed out which is not found to vary in other species of 
the genus, and the rainy-season form should also be designated. 
Of T. kana, Moore, I have only seen two specimens, both from 
Burma, and both rainy-season forms; this may turn out to be the 
rainy-season form of 7. sar, although it does not agree with it at all 
in the shape of the marginal band of the forewing. 
Of the species referred to above I have examined the type specimens 
of 7. mooret, T.templetonit, T. curtosa, T. heliophila, T. fraterna, 
LT. swinhoer, T. purreea, T. excavata, T. irregularis, T. narcissus, 
T. asphodelus, T. simplea, T. apicalis, and T. kana. Figs. 8 to 11 
on Plate II represent the undersides of four seasonal forms of 
T. silhetana ; figs. 8, 9,10 from three males taken at Thayetmyo, Lower 
Burma, the first in August and the others in September, and fig. 11 
from a male, taken in the Yaw District, Upper Burma, in December. 
Figs. 12 to 16 represent the undersides of five seasonal forms of 
T. hecabe ;:figs. 12 and 13 from two males taken at Thayetmyo in 
August ; fig. 14 from a male taken in Mysore in October; fig. 15 
from a male taken at Madras in March, and fig. 16 from a male taken 
in the Yaw District in December. 
The species of the 7. leta group may be compared as follows :— 
A. Apex of forewing very acuminate, marginal band of forewing 
extending scarcely beyond the lower median branch (7. lata). 
a. Underside, hindwing reddish. 
T. Lata, Boisduval, 
6 Underside, hindwing flesh-coloured. 
T. sacERi, Ménétriés. 
c. Underside, hindwing yellow. 
T. vacans, Wallace. 
