Food Plant: Salix myrsinifolia (dark-leaved Willow), S.phylicifolia (tea-leaved Willow), possibly other Salix species

Egg: laid under the leaf

Mine: July-August

Notes: A rare montane species. First discovered in Scotland in 1983. Feeds initially in an epidermal mine, which is under the leaf and causes some leaf distortion (as shown) then folds the leaf down into a pod. Mine shown on Salix myrsinifolia (dark-leaved Willow).

Data: 28.vii.2024, Angus, VC90, Scotland

Image:© Patrick Cook