Bird Poop Weevil / Bird-dropping Weevil

Scientific Name: Mesonychium species (specifically Clytomyias or similar genera)

Order & Family: Order Coleoptera, Family Curculionidae

Size: 3mm to 10mm in length depending on the specific species.

Bird Poop Weevil / Bird-dropping Weevil

Natural Habitat

Typically found on host plants in temperate and tropical forests, gardens, and shrublands.

Diet & Feeding

Strictly herbivorous; larvae often bore into plant stems or roots, while adults feed on foliage or fruit.

Behavior Patterns

Utilizes aggressive mimicry (crypsis) by resembling a bird dropping to avoid predation by birds and other sight-oriented predators. They often remain motionless for long periods during the day.

Risks & Benefits

Generally harmless to humans. While they may cause minor aesthetic damage to garden plants, they serve as a food source for larger invertebrates and are fascinating examples of evolutionary camouflage.

Identified on: 4/19/2026