Last modified: Feb. 27, 2024, 11:24 a.m.
A very rare and local species in Belgium.
Native
Young larvae make small, brown, full depth blotch mines without frass in the young leaves, from the protection of a spinning. Later they cause upper-surface window feeding, while hidden among spun leaves.
The adults become active from dusk onwards and are easily disturbed by day from the food plant.
The adults fly during mid-June towards late August.
The larva lives on various species of Thymus like Thymus pulegioides, Thymus praecox, Thymus serpyllum and also Mentha and Satureja.
It inhabits dry and sandy places, sandhills and limestone habitats.