Description:
Essentially the same above and below the Viceroy is an orange butterfly with heavy black veins, including one through the middle of the hind wings, and has white spots in the black margins of the wings.
Habitat:
Wetland areas, especially along streams, where willows, its host plants are found.
Overwintering Strategy:
Mid-stage Caterpillars
Flight:
Two broods. Late May through July and then late July into September.
Caterpillar Host Plants:
Trees in the willow family (Salicaceae) including Willows (Salix species), and Poplars and Cottonwoods (Populus species)
Notes:
The Viceroy is a mimic of the Monarch and can easily be confused with it, especially in flight. The Viceroy is smaller, is found along wetland areas where its host plants, willows, are found, and has a dark postmedian line on the hindwing that can be seen from above or below. This butterfly, like the Monarch, is also found commonly throughout Wisconsin.
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