264 
THE DARK PORCELAIN. 
when at rest, the anterior pair nearly linear, the 
hinder pair of a similar shape and very slender, all 
of them wtli a very long fringe. Twenty-five 
British species have been described, one of which 
is represented on the adjoining plate. It expands 
about three lines and a half; the anterior wings 
white, having a short ash-coloiured band at the base, 
a rectangular one near the middle, both of them 
edged ndth dusky and glossed with golden-yellow ; 
and towards the apex there is a cruciform mark of 
a similar colour, and a minute eye-like spot, with a 
black oblique pupil at the tip. Tlie hmder udngs 
are white, inclining to cinereous. 
Apparently not generally distributed : it has cc- 
curred near London and elsewhere. 
