THE TUSSEH SILKWORM MOTH. 125 
the Bughy and Jarvoo insects, and I have received 
parcels of them from other quarters. These have 
all produced their insects ; and after minute inves- 
tigation, I am not able to observe any difference, 
except in the size, and that is even trifling, so that 
I can at most only call them varieties of the same 
species. But very different is that which lives on 
the leaves of the Palma Christi plant, a species I am 
now able to give an account and drawings of, having 
often reared and conducted them through their vari- 
ous stages, in my own room, within these three 
years. 
This moth is called the Bughy by the natives of 
the Burbhoom hills, where the silk (which the same 
people call Z'sseh) is manufactured. 
«© They are found in such abundance, over many 
parts of Bengal and the adjoining provinces, as to 
have afforded to the natives, from time immemorial, 
an abundant supply of a most durable, coarse, dark 
coloured’ silk, commonly called Tusseh silk, which 
_ ig woven into a kind of cloth called Tusseh doot’hies, 
much worn by Bramins and other sects of Hindoos. 
This substance would, no doubt, be highly useful 
to the inhabitants of many parts of America and 
the south of Europe, where a cheap, light, cool, 
durable dress, such as this silk,makes, is much 
wanted.” 
This cloth, though of a loose texture, is uncom- 
monly durable, wearing constantly for fifteen or 
