Common Mormon Caterpillar
Scientific Name: Papilio polytes
Order & Family: Lepidoptera, Papilionidae
Size: Late-instar larvae can reach approximately 40 mm to 45 mm in length.

Natural Habitat
Gardens, orchards, and forests; primarily found on host plants in the family Rutaceae (citrus family).
Diet & Feeding
Larvae feed exclusively on the foliage of citrus plants (lemon, lime, orange) and other Rutaceous plants like Curry leaf.
Behavior Patterns
Early instars mimic bird droppings to avoid predators, while later instars (green) use camouflage. If threatened, they evert a forked, foul-smelling organ called an osmeterium from behind their head.
Risks & Benefits
They can be minor pests in citrus cultivation due to leaf consumption. However, they are essential parts of the ecosystem and mature into beautiful, ecologically beneficial pollinating butterflies.
Identified on: 4/8/2026