THE BEAUTIFUL CHINA MARK. 259 
aquatic plants, from which it cuts out a portion in 
order to form its cocoon. The species figured on 
the adjoining plate measures from ten lines to an 
inch across the wings ; the latter white and shining, 
the anterior pair with two brown stripes extending 
from the base to beyond the middle, the remainder 
of the surface reticulated with hands, formed by two 
hroivn approximating lines ; the hinder margin with 
a continuous hand, the fringe pure white, brown at 
the base. The posterior wings are likewise white, 
ivith two brown transverse bands. The arrange- 
ment of the hands varies much in different indivi- 
duals, and, in some instances, they ai'e almost wholly 
obliterated. 
Tlie caterpillar, of which we have seen no de- 
scription, feeds on the common duckweed, and the 
moth frequents the borders of ponds and marshy 
places. It occurs not unfrequently both in England 
and Scotland. 
