THE TUSSEH SILKWORM MOTH. 115 
state of their existence, each of them connects, by 
means of the recent glutinous filament of which the 
case is made, two or three leaves into an exterior 
envelope, which serves as a basis to spin the com- 
plete case or cocoon in; besides, the case is sus- 
pended from a branch of the tree in a wonderful 
manner by a thick strong consolidated cord, spun 
of the same materials from the bowels of the animal, 
“as represented in the following figure, which is a 
third of the size of the cocoon inhabited by the female 
insect.’ This case is of an exact oval shape, and 
exceeding firm texture: in it the animal remains 
dormant and perfectly protected for about the space 
of nine months, viz. from October until July, so 
that they make their appearance in time for the 
caterpillars to come into existence, when Providence 
