or Luna moth
- a large, pale-green, American moth, Actias luna, having purple-brown markings, lunate spots, and long tails.
Origin of luna moth
An Americanism dating back to 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a large American saturniid moth, Tropaea (or Actias) luna, having light green wings with a yellow crescent-shaped marking on each forewing
C19: so named from the markings on its wings