Pipevine Swallowtail, Battus  philenor

Pipevine Swallowtail

Battus philenor

Description:
Above: black, with a strong blue-green iridescence, more pronounced in the male, and a row of white, submarginal spots on both wings. Below: very distinct submarginal row of orange spots, ringed with black, on an iridescent blue-green background.

Habitat:
Open areas near woodlands where the larval hostplants grow.

Overwintering Strategy:   Chrysalis

Flight:   
Two generations; late May/June and then in July with adults flying through August.

Caterpillar Host Plants:
Pipevines (Aristolochia macrophylla, Aristolochia serpentaria and Aristolochia tomentosa)

Notes:   
The Pipevine Swallowtail is an uncommon butterfly in Wisconsin. It feeds solely on Pipevines (Aristolochia sp.), none of which are native to Wisconsin. Records of this species in Wisconsin are mainly associated with plantings of Dutchmans Pipevine.

Overwintering Strategy

Two-way migration: Adult migrates from Wisconsin to Central Mexico
Small migration: Adult migrates from Wisconsin to southern US
Immigrant: Adult migrates into Wisconsin from warmer areas and don't fly south in winter
Adult Butterfly: Hibernates overwinter as an adult butterfly
Eggs: Eggs laid on stems, twigs or foot plants overwinter in diapause
Caterpillar: Caterpillars make nests on the base of plants and hibernate until spring
Chrysalis: Caterpillars shed their last skin, form a chrysalis and enter diapause.

For more information, read: Where Do Butterflies Go In Winter?

Further Information:   

 Design A Butterfly Garden
 Take The Butterfly Quiz
 Monarch Life Cycle
 Butterflies and Moths of North America
 WisconsinButterflies.org
 Southern Wisconsin Butterfly Assn (NABA)
 The Butterfly Site

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