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Bucculatrix thoracella

Lime bent-wing moth

Description

Bucculatrix thoracella, commonly known as the lime bent-wing moth, is a leaf-mining species from the family Bucculatricidae. It primarily feeds on Tilia species but also occurs on Acer and several other broadleaf trees. The larvae initially create small, hook-shaped mines along leaf veins before emerging to feed externally. This species is widespread in Europe, except for Ireland and the Balkans, and is also found in Japan. It produces two generations per year in continental Europe but is typically univoltine in Britain. Infestations can cause visible aesthetic damage to host trees, with mined and skeletonized leaves reducing ornamental value, though they do not significantly impact tree health.

Symptom

Leaves contain small, hook-like mines near vein junctions, later forming a narrow corridor along the vein. External feeding results in characteristic window-like damage on the underside of leaves, leading to discoloration and premature leaf drop.

Tree Species: Maple, Lime

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes