 Wealthy nations such as the United States do list species of concern, and occasionally insects are placed on its Endangered Species List.In 2017 this list had classified over 80 insects as endangered species, the majority of them beetles or butterflies; a significant percentage of these listed insects are native only to the Hawaiian Islands.Migratory species, such as the well-known monarch butterfly ("Danaus plexippus"), are in need of special conservation methods.