Inchworm (Cankerworm / Geometer Moth Larva)
Scientific Name: Geometridae (Family level identification)
Order & Family: Order: Lepidoptera, Family: Geometridae
Size: 10mm to 25mm (0.4 to 1 inch) depending on species and growth stage.
Natural Habitat
Deciduous and coniferous forests, gardens, and shrubbery across various global regions.
Diet & Feeding
Mostly herbivorous, feeding on the leaves of various trees and shrubs; some species specialize in certain host plants.
Behavior Patterns
Characterized by a unique looping gait caused by a lack of middle prolegs; they often mimic twigs by standing stiffly when threatened.
Risks & Benefits
Generally harmless to humans; while some species can cause defoliation in forests or gardens, they are a vital food source for birds and beneficial insects.
Identified on: 2/13/2026