Mine of Liriomyza flaveola on Festuca gigantea Image: Willis Ellis (Bladmineerders van Europa)

Leaf-mine: A narrow whitish linear mine, running down the leaf from the apex, with frass in two rows of separate grains. Pupation external (Spencer, 1976: 246).

Narrow corridor from start to end, whitish, uppper- or lower-surface, genarally running downwards. Mine often along the leaf margin. Frass in distict grains of regular size, alternating along the sides of the corridor. Pupation outside the mine (Bladmineerders van Europa).

Larva: The larva is illustrated in Bladmineerders van Europa.

Puparium: Orange-yellow to reddish; posterior spiracles each with 3 bulbs, one conspicuously elongated (Spencer, 1976: 246).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: June-August, October.

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Common and widespread throughout Britain, including Aberdeen, Banff, Inverness, Elgin (Spencer, 1972: 52),Caernarvonshire, Cambridgeshire, Cardiganshire, Cumberland, Derbyshire, East Kent, East Norfolk. East Sussex, Elgin, Glamorgan, Herefordshire, Middlesex, Monmouthshire, North Devon, North Hampshire, North Somerset, North-east Yorkshire, Nottinghamshire, Pembrokeshire, Shropshire, South Lancaster, South Somerset, South-west Yorkshire, Stafford, Surrey, Warwickshire, West Kent, West Sussex, 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) and the Channel Is. (Martinez in Fauna Europaea).

Also recorded in the Republic of Ireland: Co. Clare (Spencer, 1972: 52).

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: Common throughout much of Europe including Denmark, Finland, Norway, Sweden (Spencer, 1976: 245), The Netherlands (Bladmineerders van Europa), Belgium (de Meijere, 1924; de Bruyn and von Tschirnhaus, 1991), Germany (Spencer, 1976: 558), Belarus, Canary Is., Czech Republic, Estonia, European Turkey, French mainland, Hungary, Italian mainland, Lithuania, Monaco, Poland, Spanish mainland and Switzerland (Martinez in Fauna Europaea).

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

Parasitoids in Britain and elsewhere: