Pine sawfly larva

Natural Habitat

Pine forests and plantations where they feed on pine needles.

Diet & Feeding

Strictly herbivorous, feeding on the needles of pine trees. Different species may prefer specific pine species.

Behavior Patterns

Sawfly larvae often feed in groups, stripping needles from branches. They undergo several instars (molts) and then pupate, often in cocoons in the soil or on the host plant, before emerging as adult sawflies. Adults are non-feeding and primarily focused on reproduction.

Risks & Benefits

Risks include defoliation of pine trees, which can weaken or kill trees, especially young ones or those stressed by other factors. This can have significant economic impacts in forestry. They are considered pests. Benefits are minimal to humans, though they are part of the forest ecosystem and can be a food source for birds and other predators.

Identified on: 11/29/2025