Milkweed butterflies their cladistics and biology ; being an account of the natural history of the Danainae, a subfamily of the Lepidoptera, Nymphalidae - Ackery, Phillip R.; Vane-Wright, Richard Irwin 1942- (Dep. of Entomology, Brit. Museum (Natural History), 1984)
Keywords: Danaiden -- Schmetterlinge