The Green-banded Swallowtail, also known as the Black Velvet, is a large and strikingly coloured butterfly with a wingspan of almost 10cm. Adults can be seen throughout the year, though much more commonly in the summer months. About equal in size, females can be distinguished by the greenish sheen to the bands on their wings while that boasted by males are bluer in colour. They fly fast and direct, and often hover over flowers, mud puddles and fresh droppings. The larvae feed on a wide variety of food plants, including citrus.
In South Africa the Green-banded Swallowtail occurs from the Garden Route through most of Kwazulu-Natal and into Mpumalanga, Limpopo and Gauteng, inhabiting forests, woodland, savannas and well planted suburban gardens and parks, with its distribution further extending over most of the rest of Sub-Saharan Africa.