Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Colias

Sulphur - Colias philodice Pink-edged Sulfur - Colias interior An oldie: image from 1989 - Colias philodice - female Sulphur - Colias nastes Cream Butterfly - Colias - female Clouded Sulphur Butterfly - Colias philodice - female Sulphur butterfly - Colias eurytheme Colias philodice
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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 Colias
All Colias species are migratory in behaviour. Some simply move up and down mountainsides as the seasons advance, to take advantage of fresh growth of their larval foodplants and adult nectar sources. Others undertake much longer migrations.
Internet References