Stem-mine: Oviposition normally on one of the lower secondary pinnulae. The larva enters a vein and from there descends as a borer in the rachis. Often several larvae together. Attacked leaves can be recognised because the leaf is stunted, often remaining partly unfolded. Pupation in the mine or in the ground (Bladmineerders van Europa). See Brown and McGavin (1982) for details of the biology.

Larva: Larva with upper process of cephalopharyngeal skeleton bifid (Bladmineereders van Europa).

Puparium: Details unknown.

Comments: Ackland in Chandler (1978) did not indicate whether his host record was British or Foreign and is therefore included under 'Hosts in Britain' and 'Hosts elsewhere'.

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: May-June (Bladmineerders van Europa).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Widespread and not uncommon (Mike Ackland, pers. comm.) including Berkshire, Brecon, Buckinghamshire, Cumberland, Dorset, East Kent, Easterness, Elgin,
Glamorgan, Herefordshire, Huntingdonshire, Main Argyll, Monmouthshire, North Lincolnshire, North Wiltshire, Oxfordshire, South Devon, South Hampshire, South-west Yorkshire, Surrey, West Cornwall, West Gloucestershire, West Kent, West Ross, 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).

NBN Grid map:

Distribution elsewhere: Widespread in continental Europe including The Netherlands (Bladmineerders van Europa), Corsica, Crete, Czech Republic, Denmark, Finland, French mainland, Germany, Greek mainland, Italian mainland, Norwegian mainland, Poland, Romania, Russia - North, Sicily, Slovakia, Spanish mainland, Sweden and Yugoslavia (Michelsen, in Fauna Europaea).

Also recorded in East Palaearctic, Near East, North Africa and Oriental Region (Michelsen, 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.