King Swallowtail | Papilio thoas PUPAE

Papilio thoas, commonly known as the King Swallowtail or Thoas Swallowtail, is a large and striking butterfly belonging to the family Papilionidae. Native to the Americas, its range extends from the southern United States through Central and South America, including the Caribbean. This species is closely related to the Giant Swallowtail (Papilio cresphontes), and the two are often mistaken for one another.

With a wingspan of 4 to 5.5 inches, Papilio thoas is recognized by its black wings adorned with bright yellow bands forming distinctive diagonal stripes. The hindwings feature elongated "swallowtails" and delicate yellow spots along the edges. The underside of the wings is paler, with a similar pattern, providing camouflage when the butterfly is at rest.

The larvae mimic bird droppings in their early stages to deter predators. They primarily feed on plants in the citrus family (Rutaceae), which sometimes brings them into conflict with citrus farmers. Adults are nectar feeders and play an important role as pollinators, favoring flowers such as lantana, bougainvillea, and milkweed.

Difficulty - Easy (2/10)

Host plants - Citrus; Piper; various other related plants.

Conditions - Room temperature is sufficient however pupae emerge sooner with warmth & butterflies enjoy sunshine.

Lifecycle - Continually brooded; pupae capable of diapause.