Sorbus torminalis
The larvae feed on "Amelanchier ovalis", "Amelanchier spicata", "Cotoneaster integerrimus", "Malus sylvestris", "Sorbus aucuparia" and "Sorbus torminalis". They mine the leaves of their host plant. The mine consists of a narrow corridor. It sometimes follows the leaf margin for a while, more often it is found along a major vein. The frass is concentrated in a narrow, regularly interrupted central line.