Leaf-mine: The mine is a whitish blotch with scattered blackish frass (UKMoths), usually low on the plant (British leafminers).

Oviposition on the basal part of the midrib. The young larva makes a number of short corridors radiating from this point, either in the same leaf, or on different ones; they have a central frassline, but their final sections are free of frass. Later an elongate blotch is make, also beginning on the midrib (although not necessarily its basal part). Pupation external (Bladmineerders van Europa).

Larva: Greyish green; head and prothoracic plate black (Koster, 2002b; Koster and Sinev, 2003a) (Bladmineerders van Europa).

Pupa: Pupation in a white cocoon, which is attached to vegetation or leaf litter (British leafminers). See also Patocka and Turcáni (2005a) (Bladmineerders van Europa).

Adult: The adult is illustrated in UKMoths (by Jon Baker) and the Encyclopedia of Life. The male genitalia, but not the female genitalia (check for update), are illustrated by the Lepidoptera Dissection Group.

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: April and May, then again in July and August (UKMoths).

Time of year - adults: The two generations of adult moths are on the wing from May to July and again in August and September (UKMoths).

Distribution in Great Britain and Ireland: Distributed widely throughout much of the British Isles (UKMoths) including Anglese, Caernarvonshire, Cheshir, Cumberland, Denbighshire, East Cornwall, East Kent, East Sussex, Flintshire, Glamorgan, Merionethshire, Monmouthshire, Montgomeryshire, North Aberdeen, North Devon, North Wiltshire, Shropshire, South Aberdeen, South Hampshire, South Somerset, South Wiltshire, Stafford, Surrey, Warwickshire, West Gloucestershire and Worcestershire (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), the Channel Is., Northern Ireland and Ireland (Karsholt and van Nieukerken in Fauna Europaea). See also British leafminers distribution map.

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, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Kaliningrad Region, Latvia, Lithuania, Norwegian mainland, Poland, Romania, Russia - Central, North and Northwest, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands 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.