1) Birch leaf eater 2) Delicate light green critter 3) Green flitter 4) Insect with lime-green wings 5) Night-flying insect 
(from the article `saturniid moth`) ...plants is a common North American saturniid moth. The female moth is maroon in colour, and the male is dark brown. The cocoon, formed inside a ...
[n] - large pale-green American moth with long-tailed hind wings and a yellow crescent-shaped mark on each fore wing
Actias luna noun large pale-green American moth with long-tailed hind wings and a yellow crescent-shaped mark on each forewing
a large, pale-green, American moth, Actias luna, having purple-brown markings, lunate spots, and long tails.