Leaf-mine: The mine in the petiole and midrib leads to an oval blotch, then a cut-out in leaf-blade (British leafminers).

The larva begins its life as a borer in the pith of a twig. Only when it is almost full grown it enters a petiole, then the midrib, of a leaf. The leaf becomes starved that way, and turns somehwat pale. From the midrib a short full depth corridor runs into the blade, generally in the basal part of the leaf. The corridor usually is quite short but when it happens to be longer a central frass line is visible. Finally an oval excision of about 3 x 5 mm is cut out, in which the larva drops to the ground (Bladmineerders van Europa).

Larva: Described by Patočka and Turčáni (2005a) (Bladmineerders van Europa).

Pupa: Details unknown.

Adult: The adult is illustrated in UKMoths by Jon Baker. The male and female genitalia are illustrated by the Lepidoptera Dissection Group.

Hosts in Britain:

Hosts elsewhere:

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

Time of year - adults: The moths fly in May and June (UKMoths).

Distribution in Great Britain and Ireland: Distributed in England and Wales north to Cumbria, this tiny leaf-mining species is locally common (UKMoths) including Banff, Bedfordshire, Buckinghamshire, Cambridgeshire, Cheshire, Derbyshire, East Cornwall, East Norfolk, East Suffolk, Glamorgan, Herefordshire, Isle Of Wight, Kincardine, Mid-west Yorkshire, North Aberdeen, North Devon, North Ebudes, North Essex, North Wiltshire, Northamptonshire, Shropshire, South Aberdeen, South Devon, South Wiltshire, South-west Yorkshire, Stafford, Surrey, West Gloucestershire, West Norfolk and West Suffolk (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). See also British leafminers distribution map.

Also recorded in the Republic of Ireland (Karsholt and van Nieukerken in Fauna Europaea).

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, Czech Republic, Danish mainland, Finland, French mainland, Germany, Latvia, Lithuania, Norwegian mainland, Poland, Romania, Russia - Central 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.