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Life History: Males perch on low growth near host plants to watch for females. Eggs are laid singly on plants. Eggs hibernate until spring; caterpillars eat leaves. Flight: Two in the north and west, from June-September; three in southern part of range, from May-November. Caterpillar Hosts: Herbs of the buckwheat family (Polygonaceae) including curly dock (Rumex crispus). Adult Food: Adults visit flowers only occasionally, but have been seen taking nectar at blackberry and red clover. Habitat: Low, wet areas such as bogs, marshes, wet meadows, ponds. Range: Maine west across southern Canada and the Great Lake states to eastern Montana and central Colorado; south to Arkansas, Mississippi, West Virginia, and Maryland.