Leaf-mine: The larva forms a cone and feeds within it (UKMoths). The larva makes a relatively long, lower surface gallery, that widens into a blotch of c. 6 mm long, where all leaf tissue is consumed, leaving only the venation. Later larval stages live free, living in three, successively larger, leaf rolls made of downfolded leaf segments (Bladmineerders van Europa).

Larva: The larva is illustrated in Bladmineeders van Europa.

Pupa: The pupa is illustrated in Bladmineeders van Europa.

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

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: July-August (British leafminers).

Time of year - adults: The adult flies from September and overwinters (UKMoths).

Distribution in Great Britain and Ireland: A very rare species in Britain, which has not been recorded reliably since the 1950's where it was noted in Gloucester. It is also believed to have been present in Northampton in the 19th century. A number of supposed records elsewhere are now believed to be misidentifications (UKMoths); Derbyshire and Stafford (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, Belgium, Czech Republic, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Norwegian mainland, Poland, Portuguese mainland, Romania, Russia - Central and South, Slovakia, Sweden, Switzerland and Ukraine (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.