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Species (Actias luna) of saturniid moth of eastern North America. Lunas are pale green and have a wingspread of 4 in. (10 cm). The wings have a thin brown border, and each hind wing has a long tail-like projection. The larvae feed on the leaves of many kinds of trees and shrubs. See alsomoth.
This entry comes from Encyclopædia Britannica Concise. For the full entry on luna moth, visit Britannica.com.