Wikipedia
Danaini
The Danaini are a tribe of brush-footed butterflies ( family Nymphalidae). Their type genus Danaus contains the well-known Monarch Butterfly (D. plexippus) and is also the type genus of the tribe's subfamily, the milkweed butterflies (Danainae).
The Danaini do not have a fixed colloquial name; for the entire tribe but in particular for subtribe Danaina the term tiger butterflies is occasionally used in reference to the numerous species in several genera commonly known as "tigers".