Milkweed butterflies : their cladistics and biology : being an account of the natural history of the danainae, a subfamily of the lepidoptera, nymphalidae /
Ackery, P. R.(Phillip Ronald)
Vane-Wright, R. I.
London Department of Entomology, British Museum (Natural History)
c1984
Bibliography: p251-287. - Includes index
Milkweed butterflies.