Leaf-mine: The mine is less than 10 mm long, creases in lower epidermis small or absent (British leafminers).

Small lower-surface tentiform mine, generally equals 10 mm in length. Usually, though not always, situated near the leaf margin or in a leaf lobe. Mines of the summer generation have one fine length fold, those of the fall generation have a large number of quite fine wrinkles. Pupa in a cocoon; The summer cocoon is small, white, anchored to the floor and the ceiling of the mine, and has frass incrusted along the sides. The autumn cocoon is larger, more delicate, and completely free of frass, that may be heaped in a corner of the mine or be more or less scattered (Bladmineerders van Europa).

Larva: Whitish with pale brown head (Emmet, Watkinson and Wilson, 1985a) (Bladmineerders van Europa).

Pupa: The pupa illustrated in Bladmineerders van Europa and just the cremaster in British leafminers.

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

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: July, September - October (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Widespread in England including Bedfordshire, Brecon, Caernarvonshire, Cambridgeshire, Carmarthenshire, Denbighshire, Derbyshire, East Kent, East Suffolk, East Sutherland, Flintshire, Glamorgan, Herefordshire, Hertfordshire, Huntingdonshire, Merionethshire, Middlesex, Monmouthshire, North Devon, North Essex, North Hampshire, North Somerset, Northamptonshire, Shropshire, South Aberdeen, South Devon, South Essex, South Lancaster, South Wiltshire, Stafford, Surrey, Warwickshire, 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, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Norwegian mainland, Poland, Romania, Slovakia, Sweden, Switzerland and Ukraine. Also recorded in 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: Unknown.