article: Viceroy (butterfly)
links: Family (biology) Cascade Range Nature (journal) Lepidoptera Animal United States Müllerian mimicry Canada Rhopalocera Arthropod Nymphalidae Populus Northwest Territories Insect Danaus eresimus Sierra Nevada (US) Papilionoidea Salicaceae North America Mexico Monarch (butterfly) Florida Danaus gilippus Danaus plexippus