Leaf-mine: The frass linear in early gallery, widening to blotch with dispersed frass (British leafminers).

Oviposition at random point of the leaf, either at upper- or lower-surface. First a quite slender corridor is made, with a relatively broad, continuous, frass line, that always leaves a clear margin at either side; the corridor winds freely through the leaf. This initial corridor often abruptly changes in direction, widens into a blotch that mostly lie along the leaf margin. Pupation outside the mine (Bladmineerders van Europa).

Larva: The larva is whitish (British leafminers).

Described by Gustafsson and van Nieukerken (1990a) (Bladmineerders van Europa).

Pupa: Details unknown.

Adult: The adult is illustrated in UKMoths. 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: End of May-June, August-September (British leafminers).

Time of year - adults: April and May and July and August (UKMoths).

Distribution in Great Britain and Ireland: Common throughout the British Isles (UKMoths) including Ayrshire, Bedfordshire, Buckinghamshire, Caernarvonshire, Cambridgeshire, Carmarthenshire, Cheshire, Denbighshire, Derbyshire, East Gloucestershire, East Kent, East Norfolk, East Ross, East Suffolk, Glamorgan, Herefordshire, Hertfordshire, Huntingdonshire, Kincardine, Middlesex, Monmouthshire, North Aberdeen, North Devon, North Ebudes, North Essex, North Hampshire, North Somerset, North Wiltshire, Pembrokeshire, Shropshire, South Aberdeen, South Essex, South Hampshire, South Lancaster, South Wiltshire, Stafford, Surrey, Warwickshire, West Cornwall, West Gloucestershire, West Kent, West Lancaster, West Norfolk, West Suffolk, Westmorland 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). 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, Belgium, Bosnia and Herzegovina, Bulgaria, Corsica, Croatia, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania, Republic of Moldova, Norwegian mainland, Poland, Portuguese mainland, Romania, Romania, Russia - Central and East, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia. Also recorded in East Palaearctic and Near East (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: