Stem-mine: An external stem mine, with widely spaced grains of black frass. Pupation takes place at the end of the mine (Spencer, 1976: 60).

Larva: Details unknown.

Puparium: Black; posterior spiracles each with 6-7 bulbs (Spencer, 1976: 60).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: September.

Time of year - adults: Two generations a year.

Distribution in Great Britain and Ireland: Local. Huntingdonshire (Woodwalton Fen) (Griffiths, 1963a: 128; Spencer, 1972: 29) and Cambridgeshire (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: Germany, Sweden (Spencer, 1976: 60) and Estonia (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.