Leaf-mine: Whitish blotches in the leaves (UKMoths).

The mine begins as a short zigzagging corridor, that very soon becomes overrun by a large, perfectly transparent blotch. Frass in a big black central lump. In fresh mines something like primary feeding lines are recognisable, normally seen only in Diptera mines. Pupation external, exit a rather untidy hole (Bladmineerders van Europa).

A large, whitish blotch sometimes occupying most or all of the leaf. The frass is mostly ejected from the mine. (British leafminers).

The mine is also illustrated in British leafminers.

Larva: The larva has a pale head and blackish brown prothoracic plate (British leafminers). The larva is illustrated in UKMoths and Bladmineerders van Europa.

Pupa: On the ground in detritus (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, August - September (British leafminers).

Time of year - adults: A bivoltine species, with adults on the wing in May and June, then again in August (UKMoths).

Distribution in Great Britain and Ireland: Widely distributed throughout the British Isles common in some places. (UKMoths) including Anglesey, Bedfordshire, Berkshire, Caernarvonshire, Cambridgeshire, Cheshire, Denbighshire, East Ross, East Suffolk, Flintshire, Herefordshire, Kincardine, Leicestershire, North Aberdeen, North Hampshire, North Somerset, Shropshire, South Aberdeen, South Wiltshire, South-east Yorkshire, Stafford, Warwickshire, West Cornwall, West Gloucestershire, West Kent, West Norfolk, West Suffolkand 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.

Its favoured habitat is waste ground and similar areas where the foodplants are found, tending to inhabit more sheltered locations (UKMoths).

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 Albania, Austria, Belarus, Belgium, Bosnia and Herzegovina, Corsica, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania, Macedonia, Norwegian mainland, Poland, Portuguese mainland, Romania, Russia Central, East, North, Northwest and South, Sardinia, Sicily, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia (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.