Stem-miner: An external stem mine. Pupation in the stem, near or even below ground level, with the anterior spiracles projecting through the epidermis (Spencer, 1976: 72-3).

Larva: Details unknown.

Puparium: Reddish-brown; posterior spiracles widely separated, each having 17-22 bulbs (Spencer, 1972: 21 (fig. 36), 25; Spencer, 1976: 72, 73 (fig. 90).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: Unknown.

Time of year - adults: June-July.

Distribution in Great Britain and Ireland: Widespread in south. Middlesex (Scratch Wood), Hertfordshire (Potters Bar), Cambridgeshire (Snailwell), Suffolk (Orford) (Spencer, 1972: 25) and Warwickshire (Coventry) (Robbins, 1991: 47); East Sussex and Glamorgan (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 much of Europe including Denmark, Finland, Norway, Sweden, Hungary, [former] Yugoslavia, the [former] U.S.S.R. (Spencer, 1976: 72), Germany (Spencer, 1976: 542), Austria, Belarus, Czech republic, European Turkey, French mainland, Lithuania, Poland, Slovakia, Spanish mainland and Yugoslavia (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: Unknown.