Anise Swallowtail Butterfly

The Anise Swallowtail (Papilio zelicaon) is a beautiful large butterfly, black with yellow spots along wing edges. The forewing has a large yellow band across the center.

It ranges throughout the western United States (except Arizona and New Mexico) and Canada.

Size: 2 5/8" - 3"
Host plants: Sweet Fennel (Anise), Citrus trees

Anise Swallowtail Life Cycle: Stages and Times

Stage Typical Duration
Egg stage Generally 4 to 10 days, depending on temperature and host plant
Caterpillar (larval) stage 3 to 4 weeks
Chrysalis (pupal) stage 10 to 20 days
Adult butterfly stage 6 to 14 days


Anise Swallowtail Butterfly
Anise Swallowtail Butterfly