Inchworm (Cankerworm)

Scientific Name: Geometridae (larvae)

Order & Family: Order: Lepidoptera, Family: Geometridae

Size: Typically 1 to 25 mm (0.04 to 1 inch) depending on species and growth stage

Inchworm (Cankerworm)

Natural Habitat

Gardens, forests, and woodlands; commonly found on deciduous trees and shrubs

Diet & Feeding

Herbivorous; feeds on the leaves of various plants, including fruit trees and ornamental shrubs

Behavior Patterns

Moves with a distinctive looping or 'inching' gait due to having prolegs only at the front and back; often drops from silk threads when disturbed

Risks & Benefits

Generally beneficial as food for birds; however, large populations can cause significant defoliation to garden plants and trees.

Identified on: 3/11/2026