Crane Fly Larva (Leatherjacket)

Natural Habitat

Typically found in moist soil, muddy banks of streams, decaying vegetation, or under layers of damp leaves. They are commonly associated with turfgrass and lawn soil.

Diet & Feeding

Mostly feeds on decaying organic matter, plant roots (including grass roots), and sometimes small insects or algae.

Behavior Patterns

The larvae (often called 'leatherjackets' due to their tough skin) live underground or in submerged/semi-submerged environments. They are the juvenile stage of the adult Crane Fly (often mistaken for giant mosquitoes). They are most active in spring and fall.

Risks & Benefits

Generally harmless to humans (they do not bite or sting). As pests, high populations can damage turfgrass and lawns by eating the roots, causing yellow patches. Ecologically, they are important decomposers and serve as a food source for birds, fish, and small mammals.

Identified on: 2/12/2026