Leaf-mine: Egg at the upperside of the leaf, often near a vein. The mine is a strongly contorted gallery, almost entirely filled with black frass. Often many mines in a leaf (Bladmineerders van Europa). The mine is illustrated in British leafminers.

Larva: The larva is a pale colour (British leafminers).

Pupa: Pupation in a cocoon between the leaves, in captivity (British leafminers).

Adult: Not illustrated in UKMoths (check for update). The genitalia are not illustrated by the Lepidoptera Dissection Group (check for update).

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: November to April (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Initially in Greater London - now spreading through southern England (British leafminers). See also British leafminers distribution map.

NBN Grid map:

Distribution elsewhere: Widespread in continental Europe including Corsica, Croatia, Cyprus, Greek mainland, Italian mainland and Sicily (Karsholt and van Nieukerken in Fauna Europaea).

NBN interactive distribution map(s) of known host species in Great Britain and Ireland and elsewhere:

Parasitoids in Britain and elsewhere: Unknown.