Leaf-mine: The mine starts as a long, narrow, winding corridor running towards the midrib, widening to a blotch. Usually upper-surface, but in small leaves also full-depth parts may occur. The blotch has broad lobes; in their ends most frass is accumulated in the form of green patches or clouds. Sometimes several larvae share mine. Pupation usually in the soil, less often in the leaf (and then generally not in the mine itself but in a small separated mine, that may even be made in the petiole) (Bladmineerders van Europa).

Larva: Watch a video of scatomyid fly on Arabidopsis on YouTube by mash92587.

The larva is illustrated in Bladmineerders van Europa.

Puparium: Details unknown.

Comments: Chandler (1978) did not indicate whether his host records were British or Foreign and are therefore tentatively included under 'Hosts in Britain' and 'Hosts elsewhere' as is the record by Pitkin and Plant, which was previously assumed to be British.

Lychnis flos-cuculi is treated as Silene flos-cuculi (Ragged-Robin); Rorippa nasturtium-aquaticum is treated as Nasturtium officinale (Water-cress) and Stellaria uliginosa is treated as Stellaria alsine (Bog Stitchwort) by Stace (2010).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: March, June-July, September-October.

Time of year - adults: Appears to have at least two generations a year with adults most abundant in July and October.

Distribution in Great Britain and Ireland: Widespread in Britain including Warwickshire (Hawkesbury, Ladywalk, Nelson's Quarry and Dosthill) (Robbins, 1991), Inner Hebrides (Isle of Coll) (Bland, 1992); Anglesey, Brecon, Caernarvonshire, Cardiganshire, Cumberland, Denbighshire, Dorset, East Cornwall, East Kent, East Norfolk, East Suffolk, East Sussex, Easterness, Elgin, Glamorgan, Herefordshire, Kirkudbrightshire, Merionethshire, Monmouthshire, Montgomeryshire, North Essex, North Hampshire, North Lincolnshire, North Somerset, Pembrokeshire, Radnorshire, Renfrewshire, Shropshire, South Aberdeen, South Hampshire, South Wiltshire, South-west Yorkshire, Stafford, Surrey, Warwickshire, West Gloucestershire, 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).

Also recorded in the Republic of Ireland (Bächli, 2004 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 The Netherlands (de Meijere, 1939), Belgium (Gosseries, 1991a), Andorra, Austria, Azores, Bosnia and Herzegovina, Bulgaria, Canary Is., Crete, Croatia, Cyprus, Czech Republic, Denmark, Dodecanese Is., Faroe Is., Finland, French mainland, Germany, Greek mainland, Hungary, Iceland, Italian mainland, Kaliningrad Region, Lithuania, Macedonia, Madeira, Norwegian mainland, Poland, Portuguese mainland, Romania, Russia - North and Northwest, Sicily, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland and Yugoslavia (Bächli, 2004 in Fauna Europaea).

Also recorded in Asia and North Africa (Bächli and Roche Pite, 1984).

NBN interactive distribution map(s) of known host species in Great Britain and Ireland and elsewhere:

Parasitoids in Britain and elsewhere: