troides

Troides is a genus of birdwing butterflies belonging to the family Papilionidae. These butterflies are among the largest in the world, with some species having wingspans exceeding 25 centimeters. They are native to Southeast Asia and Australasia, inhabiting rainforests and tropical woodlands. The genus is characterized by its striking coloration, often featuring iridescent green or yellow markings on black wings. Both males and females are large, though females are typically larger and less brightly colored.

The larvae of Troides butterflies feed on plants of the genus Aristolochia, commonly known as pipevines. This host plant relationship is crucial for the survival of the butterflies, as the larvae sequester toxic compounds from the plant, making them unpalatable to predators. This toxicity is retained in the adult butterfly, providing a defense mechanism. Due to their size and beauty, Troides butterflies are highly sought after by collectors, which, combined with habitat loss, has led to conservation concerns for several species within the genus. Many Troides species are protected by law in their native countries.