The larvae feed on Calamintha nepeta, Calamintha nepeta glandulosa, Calamintha sylvatica and Micromeria species. They mine the leaves of their host plant. The mine consists of a long, slender gallery with a narrow central frass line. Normally, the mine begins at the underside of a leaf, then descends along the petiole to the rind of the stem. Here a long gallery is made, either ascending or descending. Sometimes the mine is limited to the stem. Pupation takes place outside of the mine.
