Butterfly Dust

Butterfly Dust is a rare Hardmode crafting material used solely to craft Butterfly Wings. It has a 1/2 (50%) chance of being dropped by Moths in the Underground Jungle. As of update 1.4.0.1, Butterfly Dust will only drop after the player has defeated at least one of the Mechanical Bosses.

History
Poussière de papillon 蝴蝶尘