Moth

The Moth is a rare mob that spawns in the Underground Jungle once the Wall of Flesh has been defeated. Upon killing the Moth, there is a chance that it will drop Butterfly Dust, which is used in the creation of Butterfly Wings. They are immune to the Poisoned, Venom and Confused debuffs. They also have a tiny chance to drop a Moth Banner.

History
triva

moth are brown butterfiles.