Gall-former: A slender cylindrical gall in the upper part of the stem (Spencer, 1972: 18; Redfern et al, 2002: 363, fig. 459). Pupation internal.

Larva: Details unknown.

Puparium: Posterior spiracles separated by slightly less than their own diameter; each with a ring of 6-8 ill-defined bulbs around the low protuberance replacing the normal horn (Spencer, 1972: 16, fig. 19).

Hosts in Britain:

Hosts elsewhere:

Time of year - galls: Unknown.

Time of year - adults: August.

Distribution in Great Britain and Ireland: Uncommon. Surrey (Box Hill), Buckinghamshire (Ivinghoe), Hereford (Tarrington) (Spencer, 1972: 19); East Sussex, Glamorgan, North Somerset, South Wiltshire and West Gloucestershire (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: 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 Sweden, Germany and Austria but more common in Mediterranean areas, with records from Corsica, Italian mainland, Spain and Yugoslavia (Spencer, 1976: 50), Belgium, Canary Is., Czech Republic, European Turkey, French mainland, Hungary, Italian mainland, Lithuania, Poland, Slovakia 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: