Answer: sulphurs

AnswerCrossword Clue
SULPHURSYellow butterflies, to Brits
SULPHURSBrimstones.
SULPHURSYellow butterflies
sulphursAn American butterfly with predominantly yellow wings that may bear darker patches
sulphursThe material of which hellfire and lightning were believed to consist
sulphursSULPHUR, to treat with sulphur, also SULFUR
sulphursThe chemical element of atomic number 16, a yellow combustible nonmetal
sulphursA pale greenish-yellow color