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 hrown stripes extending 

 from the hase to beyond the middle, the remainder 

 of the surface reticulated with hands, formed by two 

 brown approximating lines ; the hinder margin with 

 a continuous band, the fringe pure white, brown at 

 the base. The posterior wings are likewise white, 

 with two brown transverse bands. The arrange- 

 ment of the bands varies much in different indivi- 

 duals, and, in some instances, they are almost wholly 

 obliterated. 



The caterpillar, of which we have seen no de- 

 scription, feeds on the common duckweed, and the 

 moth frequents the borders of ponds and marsh) 

 places. It occurs not umfrequently both in England 

 and Scotland. 



