Euploea alcathoe, commonly known as the no-brand crow, Eichhorn's crow or striped black crow, is a common butterfly found from India to Borneo, and in the Moluccas, New Guinea and Australia. It belongs to the crows and tigers subfamily of the Nymphalidae (brushfooted butterflies). Euploea alcathoe adults are most common in the monsoonal wet season between December and May in Australia, and there may be several generations over the course of a year.