Food Plant: Glechoma hederacea (Ground-ivy).
Recorded Elsewhere: Mentha aquatica (Water Mint), Mentha pulegium (Pennyroyal), Mentha suaveolens (Apple Mint)

Egg: on the leaf

Mine: May-July (Hering 1957)

Notes: Forms a large transparent mine at the leaf edge (shown in top photo, of upper leaf surface). The egg at the start of the mine is covered in a glossy black secretion (shown in bottom photo, of the lower leaf surface, at top right). The pupa is formed inside the mine and is not in a cocoon.

Data: 31.v.2016, Meerhout~Zeeploop (Antwerpen), Belgium

Image:© Carina van Steenwinkel

References:
Hering, EM (1957), Bestimmunstabellen der Blattminen von Europa