Leaf-mine: Before overwintering larvae make a small, full depth blotch (Robbins, 1991a). After hibernation, they live freely under a silk. Larvae mine in late autumn (Agassiz, 1996a). Not rare, in Belgium (De Prins, 1998a) (Bladmineerders van Europa).

Larva: The larva overwinters when small (UKMoths).

Pupa: The pupa is illustrated in UKMoths.

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: Late autumn (Bladmineerders van Europa).

Time of year - adults: Flies at night during July and frequently taken at light (UKMoths).

Distribution in Great Britain and Ireland: Fairly common throughout Britain except the far north (UKMoths) including Bedfordshire, Brecon, Caernarvonshire, Cambridgeshire, Cheshire, Cumberland, Denbighshire, Derbyshire, East Cornwall, East Gloucestershire, East Kent, East Norfolk, East Suffolk, Glamorgan, Herefordshire, Hertfordshire, Huntingdonshire, Kincardine, Merionethshire, Middlesex, Monmouthshire, Montgomeryshire, North Essex, North Hampshire, North Somerset, North Wiltshire, Pembrokeshire, Shropshire, South Aberdeen, South Somerset, South Wiltshire, South-west Yorkshire, Stafford, Surrey, Warwickshire, West Gloucestershire, West Kent, West Lancaster, West Norfolk, West Suffolk, Westmorland and Worcestershire (NBN Gateway, as Paraswammerdamia . lutarea - 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. and Northern Ireland (Karsholt and van Nieukerken in Fauna Europaea).

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 Albania, Austria, Belgium, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Greek mainland, Hungary, Italian mainland, Kaliningrad Region, Latvia, Luxembourg, Norwegian mainland, Poland, Portuguese mainland, Romania, Sardinia, 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.