Euploea is a genus of milkweed butterflies. The species are generally dark in coloration, often quite blackish, for which reason they are commonly called crows. As usual for their subfamily, they are poisonous due to feeding on milkweeds and other toxic plants as caterpillars. The latter are aposematically colored to warn off predators from eating them, and the adult butterflies are often mimicked by unrelated species which are not or less poisonous.

Species: Listed alphabetically.

• Euploea albicosta – Biak dark crow
• Euploea alcathoe – no-brand crow, striped black crow
• Euploea alcathoe enastri – Gove crow
• Euploea algea – long-branded blue crow, mournful crow, Algea crow
• Euploea andamanensis – Andaman crow
• Euploea asyllus
• Euploea batesii
• Euploea blossomae – Schaus´s crow
• Euploea boisduvali
• Euploea caespes – Murphy´s crow
• Euploea camaralzeman – Malayan crow
• Euploea climena
• Euploea configurata – Sulawesi striped blue crow
• Euploea cordelia – Cordelia crow
• Euploea core – common crow
• Euploea corinna – Australian common crow
• Euploea crameri – spotted black crow
• Euploea darchia – small brown crow
• Euploea dentiplaga – Seram crow
• Euploea desjardinsii
• Euploea doretta – Pagenstecher´s crow
• Euploea doubledayi – striped black crow
• Euploea eboraci – Bismark crow
• Euploea eleusina – Vollenhov´s crow
• Euploea eunice – blue-banded king crow
• Euploea eupator – Vanoort´s crow
• Euploea euphon – Mascarene crow
• Euploea eurianassa
• Euploea eyndhovii
• Euploea gamelia – Javan crow
• Euploea goudotii
• Euploea hewitsonii – Hewitson´s dwarf crow
• Euploea klugii – blue king crow
• Euploea lacon – Spartan crow
• Euploea latifasciata – Weymer´s crow, broad-banded crow
• Euploea leucostictos – orange-flash crow
• Euploea lewinii
• Euploea magou – magou crow
• Euploea martinii – Sumatran crow
• Euploea midamus – blue spotted crow
• Euploea mitra – Seychelles crow
• Euploea modesta
• Euploea morosa
• Euploea mulciber – striped blue crow
• Euploea nechos
• Euploea netscheri
• Euploea orontobates

• Euploea phaenareta – great crow, large crow
• Euploea phaenareta juvia – Taiwan or juvia large crow, extinct (1960s)
• Euploea radamanthus – magpie crow
• Euploea redtenbacheri – Malayan crow, Redtenbacher´s crow
• ?Euploea rogeri – Roger´s monarch
• Euploea stephensii
• Euploea swainson – Swainson´s crow
• Euploea sylvester – double-branded crow
• Euploea tobleri – Tobler´s crow
• Euploea transfixa
• Euploea treitschkei
• Euploea tripunctata – Biak threespot crow
• Euploea tulliolus – eastern brown crow, dwarf crow
• Euploea usipetes
• Euploea wallacei
• Euploea westwoodii – Westwood´s king crow

Nomenclature: This genus has a large number of junior synonyms, due in part to Moore committing what probably ranks as one of the most drastic cases of oversplitting in the history of zoology:

Crastia Hübner, 1816

Trepsichrois Hübner, 1816

Salpinx Hübner, 1819

Eudaemon Billberg, 1820

Terpsichrois Hübner, 1821 (lapsus)

Euplaea Boisduval, 1832 (lapsus)

Calliploea Butler, 1875

Macroploea Butler, 1878

Stictoploea Butler, 1878

Euplea W.F. Kirby, 1879 (lapsus)

Adigama Moore, 1880

Andasena Moore, 1883

Betanga Moore, 1883

Bibisana Moore, 1883

Chanapa Moore, 1883

Chirosa Moore, 1883

Danisepa Moore, 1883

Deragena Moore, 1883

Gamatoba Moore, 1883

Glinama Moore, 1883

Hirdapa Moore, 1883

Isamia Moore, 1883

Karadira Moore, 1883

Lontara Moore, 1883

Mahintha Moore, 1883

Menama Moore, 1883

Mestapra Moore, 1883

Nacamsa Moore, 1883

Narmada Moore, 1880

Nipara Moore, 1883

Oranasma Moore, 1883

Pademma Moore, 1883

Patosa Moore, 1883

Penoa Moore, 1883

Pramasa Moore, 1883

Pramesta Moore, 1883

Rasuma Moore, 1883

Sabanosa Moore, 1883

Saphara Moore, 1883

Sarobia Moore, 1883

Satanga Moore, 1883

Selinda Moore, 1883

Tabada Moore, 1883

Tagata Moore, 1883

Tiruna Moore, 1883

Tronga Moore, 1883

Vadebra Moore, 1883

Vonona Moore, 1883

Anadara Moore, 1883 (non Gray, 1847: preoccupied)

Doricha Moore, 1883 (non Reichenbach, 1853: preoccupied)

Karadina Moore, 1891 (lapsus)

Chirosia Sharp, 1904 (lapsus)

Daniseppa Fruhstorfer, 1910 (lapsus)

Pamasa Fruhstorfer, 1910 (lapsus)

Rausuma Fruhstorfer, 1910 (lapsus)

Ironga Martin, 1914 (lapsus)

Makroploea Martin, 1915 (lapsus)

Eupolea Hulstaert, 1931 (lapsus)

Ramasa Hulstaert, 1931 (lapsus)