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The western counterpart of Black Swallowtail, and very similar to it -- Black overall with yellow postmedian and submarginal spotbands.  And, like Black Swallowtail, it is a hilltopper.


A wide variety of open habitats, especially disturbed areas.

Flight Period

Throughout warm weather, but mainly May-July.

Caterpillar Foodplants

Many species in the parsley family (Apiaceae or Umbelliferae), including, of course, anise, and also on species in the rue family (Rutaceae).

Scientific Information

Scientific Name - Papilio zelicaon