ˈī(ˌ)ō- noun
Etymology: New Latin io (specific epithet of Automeris io ), from Latin Io, mythical priestess of Argos who was loved by Zeus, from Greek Iō
: a large yellowish American moth ( Automeris io ) having a large ocellate spot on each hind wing and a larva covered with fascicles of spines that sting like nettles