1) Noctuid 2) Noctuid moth 3) Owlet moth 
• (n.) Any one of numerous species of noctuid moths belonging to Catocala and allied genera, in which the hind wings are banded with red and black or other conspicuous colors. Many of the species are called red underwing. • (n.) One of the posterior wings of an insect.
[n] - moth having dull forewings and brightly colored hind wings
Undersurface of a wing including the linings and flight feathers
noun moth having dull forewings and brightly colored hind wings
one of the hind wings of an insect. · any of several noctuid moths of the genus Catocala, characterized by red-, yellow-, or orange-banded hind wings.