- a showy, yellow moth, Automeris io, of North America, having a prominent pink and bluish eyespot on each hind wing.
Origin of Io moth
First recorded in 1865–70; named after Io
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- an American saturniid moth, Automeris io, bright yellow with a blue-and-pink eyelike spot on each of the hind wings
C19: after Io 1 (who was tormented by a gadfly), referring to the sting of the larva
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012