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Genus Zerene - Dogfaces

California Dogface, Colias eurydice - Zerene eurydice - female sulpher butterfly - Zerene cesonia - male Adult emerging - Zerene cesonia Yellow butterfly needs ID. - Zerene eurydice - female Coliadinae - Zerene cesonia Southern Dogface Sulphur - Zerene cesonia Sulfur - Dogface? - Zerene cesonia sulphur - Zerene cesonia
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Papilionoidea (Butterflies and Skippers)
Family Pieridae (Whites, Sulphurs, Yellows)
Subfamily Coliadinae (Sulphurs and Yellows)
Genus Zerene (Dogfaces)
Synonyms and other taxonomic changes
formerly included in the genus Colias
2 species in North America, the Southern Dogface (Z. cesonia) and the California Dogface (Z. eurydice)
pattern of the upper forewing resembles a yellow "dog face" bordered by black, with a black circle forming the eye
resident in California, Texas, and Florida; regular migrant across southern two-thirds of United States, with occasional strays recorded as far north as central Canada and the Great Lakes
open areas such as roadsides and pastures
larvae feed on legumes
Internet References
live adult images of Z. cesonia (Jeffrey Pippen, Texas, courtesy of Duke U.)
pinned adult images plus other info on Z. eurydice (