Food Plant: Artemisiae vulgaris (Mugwort), occasionally Eupatorium cannabium (Hemp Agrimony).

Mine: Bivoltine, Summer and Autumn

Pupa: on the ground

Notes: A whitish blotch mine occuring on the upper leaf surface. Starts with a short corridor and does not show feeding lines. Superficially similar to the lepidopterous mine made by Leucospilapteryx omissella, but the latter mine turns purple as it ages

Data: 21.ix.2003

Image:© Colin Plant