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Spot ID Characters for the Family


Swallowtail Butterflies

To view close-ups, mouse over each butterfly in the left image.

Key Characters:

  • Front legs well-developed
  • Charcteristic tail on hind wings

Picture Gallery

The swallowtail butterflies are commonly seen in the eastern United States and have several defining characteristics.  Unique to this family is a short ‘tail-like’ piece extension apparent from the distal end of the hind wing.  There is also only one anal vein in the hind wing.  The Cu- crossveins are in the front wings, allowing it look 4-branched.  The larvae are smooth bodied.