Inchworm (Geometer moth caterpillar)

Scientific Name: Family Geometridae (various species)

Order & Family: Order Lepidoptera, Family Geometridae

Size: Typically 1 to 2 inches (25 to 50 mm) in length.

Inchworm (Geometer moth caterpillar)

Natural Habitat

Found globally on a wide variety of host plants, including trees, shrubs, and garden vegetables.

Diet & Feeding

Herbivorous, primarily feeding on the leaves of host plants; some species are generalists while others are host-specific.

Behavior Patterns

Known for a unique "looping" locomotion caused by having legs at both ends of the body but none in the middle; many species can produce silk and mimic twigs to avoid predators.

Risks & Benefits

While they are important food sources for birds and other wildlife, certain species can be significant agricultural or forest pests when populations surge, causing defoliation.

Identified on: 12/26/2025