GREEN SILVER-LINES. 
2(51 
pillars are usually naked, and muck attenuated 
behind, which gives them some resembhmce to a 
fish ; whence some of them are described by Eeau- 
raur as Chenilles en forma de Poisson. They have 
sixteen legs, and run ivith great activity, seemingly 
with equal ease either backwards or forwards. The 
species above referred to expands fi'om somewhat 
more than an inch to an inch and a half, the colour 
light-green ; each of the anterior wings nith three 
oblique stripes of sUvery-white, the costa likewise 
of that colour. Tlie abdomen and hinder wings are 
yelloivish-white ; antennse reddish-brown ; the an- 
terior margin of the upper wings, the hinder margin 
and the fringe, as well as the legs, tinged more or 
less with bright red in the male. 
The cateiq)Ular is light-green, with a yellow line 
on each side, and two red streaks behind. (PI. xxix. 
Fig. 3.) It feeds on a vaiiety of common trees, 
and changes into a reddish-broivn pupa, which it 
encloses in a closely woven cocoon, nearly boat- 
shaped. The moth is not rare in England, and is 
likewise found not unfrequently in the south of 
Scotland. 
