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Life History: Males patrol for females. Females lay single eggs on undersides of host leaves. Chrysalids hibernate. Flight: Two to three in northern part of range; 7-8 in the south. It is usually the first butterfly to emerge in spring. Caterpillar Hosts: Many plants in the mustard (Brassicaceae) family and occasionally some in the caper family (Capparidaceae). Adult Food: Flower nectar from a very wide array of plants including mustards, dandelion, red clover, asters, and mints. Habitat: Almost any type of open space including weedy areas, gardens, roadsides, cities, and suburbs. Range: From central Canada south through the United States (except Florida Keys, southern Louisiana, and South Texas) to northwest Mexico.