264 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XIII. 
The two sexes of P. herbifera are very different, and it remains to 
be seen whether the same is the case with regard to P. fumosa. I 
give descriptions of both sexes taken from my specimens. 
&. Head and thorax dark brown, the latter with a pea-green patch 
on each side. Forewing dark maroon-brown, with the basal two-thirds 
reddish. Abdomen and hindwing dark brown. zp. 21-23 millim. 
Q. Head and thorax pale brown, the former with an indistinct 
green line from the base of the antennee over the eyes, the latter with 
a pea-green patch on each side. Forewing pea-green with an oval 
brown patch from the base along the costa to just before the middle, 
a postmedial waved brown line becoming medial at the inner margin, 
beyond which the area is purplish grey-brown suffused with silvery 
scales; a submarginal patch of brown between veins 4 and 5, and 
another at the outer angle. Abdomen and hindwing pale brown, the 
latter slightly paler towards the base. wp. 27-34 millim. 
I reared two batches of Jarvee, which emerged in February-March 
and August-Sepsember. I also took a male at light in May. 
The larve feed gregariously ona plant which is parasitic to Shorea 
robusta and other trees, the Nepalese name for the plant is “ Aijhal.” 
Larva. Two distinct forms are found together. The first is greenish, 
with three pale yellow dorsal lines throughout, a sub-dorsal row of 
short spiny tubercles on a yellow line, those on the érd, 4th, 10th 
and lith somites longer and with black points ; three lateral yellow 
lines followed by a sub-lateral row of yellow-brown tipped tubercles 
longer than the sub-dorsa] ones ; 1st somite with a pair of black spots, 
- followed by a bright blue band which is generally hidden; 12th 
somite with a pair of large velvety black spots, and terminating in two 
tubercles similar to the sub-lateral ones. Head brownish, under- 
surface yellowish-green. The second form, which is assumed by some 
of the larvee two moults before pupating, by others not until the 
last moult, and still not atall by others, differs from the first form 
in the central dorsal and central lateral lines being blue-green, and 
all the tubercles orange or scarlet on lines of the same colour. 
Pupa is formed in a cocoon of brownish silk of the ordinary ‘Lima- 
codid form beneath a protecting outer web onthe under-surface of 
dead leaves of the food-plant. Four or five cocoons are often joined 
together. Iyeared 22 specimens from larve taken. 
Rah pdt bee toga 
