480 Lord Rothschild on some 
towards apex, pale areas of abdominal and distal margins 
greyish olivaceous brown. Body and wings above with 
whole ground-colour olivaceous, not ochraceous. Below 
fawn-olive, broad basal area below median nervure of fore 
wing deep blackish brown. 
Length of fore wing 70 mm.; expanse 155 mm. 
Hab. Lebong-Tandai, Benkoelen District, Sumatra, 1912- 
1919 (C.J. Brooks); 13% 
4, Marumba cristata titan, subsp. n. 
?. Very much larger and darker than er. cristata; the 
bands on the fore wing are much broader and the four basal 
ones wider apart. Ground-colour deep sooty grey-brown 
with a purplish violet suffusion, with no rufous or sandy tinge 
whatever. The subtornal spot on fore wings is very large 
and broadly ringed with orange. Abdominal area on hind 
wings grey. 
Length of fore wing, 2 cristata cristata, 60 mm.; expanse 
132 mm. 
Length of fore wing, 2 cristata titan, 74 mm.; expanse 
163 mm. 
Hab. Lebong-Tandai, Benkoelen District, Sumatra, 1912- 
1919 (C. J. Brooks) ; 1 2. 
5. Marumba scott, sp. n. 
3. Nearest to sperchius gigas, Butl., but smaller, at once 
distinguished by its grey colour, the sandy and buff tints 
being entirely absent, and by the presence of an extra oblique 
band from costa passing through the stigma and joining 
band 4 on vein 1, where they stop short. Band 5 and the 
following shadow band are much closer to the stigma than in 
sp. gigas. Hind wing deep brown washed with grey, and 
nervures chestnut ; margins much less crenulated. 
Length of fore wing 43 mm.; expanse 98 mm. 
Hab. Shillong, Assam, 1919 (Major F. B. Scott). 
“The larvee were common in Shillong (Khasia Hills) 
during July and August 1919, feeding on Spanish Chestnut 
and a species of Oak. I did not find the egg. 
«The larva is coloured as follows :—Head and body green 
varying from apple-green to nearly white. A whitish stripe 
on either side of front of head ending in two short points. 
Head and body dotted with white tubercles, sometimes with 
reddish points. A whitish lateral stripe on the first to the 
third segments and seven oblique stripes, whitish edged above 
with dark green, on the usual segments. ‘The lower portion 
of the anterior oblique stripe widens out into an irregular 
quadrate spot. A white ventral [? lateral, R.] stripe from 
