14 LEPIDOPTERA. 



fifth segment; horn rough, blue above, paler or yellowish 

 beneath, tip pale greenish ; spiracles yellow edged with 

 red ; head purple, the face edged with a yellow line ; anal flap 

 with the encrustation orange. 



Or with the back dull olive green tinged with purple and 

 profusely dotted with greenish-yellow or pale emerald-green ; 

 the dots disposed in tranverse rows or bauds ; the seven 

 oblique lateral stripes very pale lilac, edged above with dull 

 purple ; horn bright blue above, lilac beneath, tip yellow ; 

 anal scutcheon light orange-yellow, enclosing a ferruginous 

 patch ; spiracles deep red, centred with yellow ; head olive- 

 green, with the usual yellow line round the face ; belly and 

 sides below the spiracles very pale dull greenish ; legs tipped 

 with pink. (Fenn.) 



When very young the larva is yellowish-green, very 

 slender, with the horn black, bristly, and bifid at the tip, 

 but very soon the horn becomes single and yellowish and the 

 lateral stripes begin to appear. At the second moult the 

 yellow raised points are developed, and after the third, the 

 scutcheon upon the anal flap. The adult colours are gradually 

 assumed as it grows, and sometimes a larva changes from 

 green to purple before pupation. This is a graceful and very 

 handsome larva. 



July and August. On elm and lime, and, very rarely, on 

 birch. 



Pupa not very stout, rather rough, tail blunt with a stout 

 spike. Dull dark purplish-brown. Subterranean, usually 

 at the foot of a tree, in a large cocoon of earth and silk. 

 May often be dug up in the autumn and winter at the foot 

 of an elm or lime tree. 



This beautiful moth may sometimes be seen at rest on the 

 lower part of the trunk of a lime tree in the London suburbs, 

 with fore wings hanging back and hind wiugs projecting a 

 little forward; in shape and colour resembling in a most curious 



