Leaf-mine: Gradually widening mine in the base of the blade; the sides very irregulary scalloped out. In the end the blade may be eaten out completely. When lit from behind the mine is not uniformly transparant, but rather yellowish green and mottled because the larva leaves parts of the leaf tissue uneaten, and does not feed full depth. Pupation external (Bladmineerders van Europa).

Larva: Described by Parenti (2005a). The larva is dark olive green, almost black (Bladmineerders van Europa).

Pupa: Described by Parenti (2005a) (Bladmineerders van Europa).

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: September - April; larva overwinters in the mine (Bladmineerders van Europa).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Britain including Herefordshire and West Gloucestershire
(NBN Gateway - N.B. includes Watsonian Vice Counties having publicly available records that fall within or overlap the vice county border at 10km resolution or better i.e. a record for a vice county may relate to an adjacent vice county - for included datasets see NBN Grid map below).

NBN Grid map: Note that not all datasets on the NBN Gateway may be available on the map below. If you are an NBN Gateway registered user you can request access for missing datasets via the link 'Open interactive map in new window' below.

Distribution elsewhere: Widespread in continental Europe including Austria, Finland, French mainland, Hungary, Norwegian mainland, Poland, Romania, Russia - East and North, Sweden and The Netherlands (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.