Inchworm (Geometer moth caterpillar)

Scientific Name: Family Geometridae

Order & Family: Order: Lepidoptera; Family: Geometridae

Size: Typically 10mm to 50mm (0.4 to 2 inches) in length depending on the species.

Inchworm (Geometer moth caterpillar)

Natural Habitat

Found worldwide in forests, gardens, and urban green spaces, typically on the leaves and branches of host plants.

Diet & Feeding

Mostly herbivorous, feeding on the leaves of trees, shrubs, and flowering plants; some rare species are carnivorous.

Behavior Patterns

Characterized by a 'looping' gait caused by having prolegs only at the front and back ends. They often mimic twigs to stay camouflaged from predators.

Risks & Benefits

Generally harmless to humans. While some species can be agricultural pests by defoliating trees, they serve as a vital food source for birds and other wildlife.

Identified on: 12/27/2025