Leaf-mine: The mine is less than 14 mm long, single crease in lower epidermis. The frass random in summer, but in U- or V-shaped lining to cocoon in autumn (British leafminers).

Rather small, lower-surface tentiform mine, less than 14 mm long, with one strong fold in the lower epidermis. Pupa in a tough white cocoon that is attached to both the floor and roof of the mine. Before ecdysis the pupa half emerges from the underside of the mine (Bladmineerders van Europa).

The leaf-mine is also illustrated in UKMoths and illustrated in the Encyclopedia of Life.

Larva: Details unknown.

Pupa: The cremaster is illustrated in British leafminers, Bladmineerders van Europa and the Encyclopedia of Life.

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: June - July, September - October (British leafminers).

Time of year - adults: On the wing in May and June, and again in the autumn (UKMoths).

Distribution in Great Britain and Ireland: Fairly common over much of Britain, but less so in Ireland (UKMoths) including Anglesey, Bedfordshire, Buckinghamshire, Caernarvonshire, Cambridgeshire, Carmarthenshire, Cheshire, Derbyshire, East Cornwall, East Kent, East Norfolk, East Ross, East Suffolk, East Sussex, East Sutherland, Flintshire, Glamorgan, Herefordshire, Hertfordshire, Merionethshire, Middlesex, Monmouthshire, North Ebudes, North Essex, North Somerset, North Wiltshire, Shropshire, South Aberdeen, South Devon, South Essex, South Hampshire, South Lancaster, South Wiltshire, Stafford, Surrey, Warwickshire, West Cornwall, West Gloucestershire, West Kent, West Lancaster, West Norfolk, West Ross, 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.

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, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Republic of Moldova, Norwegian mainland, Poland, Romania, Russia - Central, East, Northwest and South, Slovakia, Spanish mainland, Sweden, Switzerland and Ukraine. Also recorded in the 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: