Sulfur butterfly

Several taxa of butterflies are collectively called the Sulfurs or Sulphurs:

• Coliadinae, a subfamily of butterflies commonly known as the Sulfurs or Yellows
• Dercas, a genus of Coliadinae commonly called the Sulfurs
• Colias, a genus of Coliadinae commonly called the Sulfurs (in North America) or Clouded Yellows (elsewhere)
• Phoebis, a genus of Coliadinae that is not itself called the Sulfurs but that contains a number of species which are