Stem borer: Larva an internal stem-borer. Pupation internal (Spencer, 1972: 19).

Larva: Details unknown.

Puparium: Puparium pale, straw-coloured. Posterior spiracular processes black, separated approxiamately by own diameter, each with 14-18 bulbs around a black central horn (Spencer, 1972: 19).

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: Unknown.

Time of year - adults: May.

Distribution in Great Britain and Ireland: London (Hampstead), Surrey (Bookham, Selsdon), Middlesex. (Scratch Wood), Hampshire (Is. of Wight, Branscombe), Devon (Studland), Huntingdonshire (Woodwalton Fen), Glamorgan, Dunbarton (Bonhill) (Spencer, 1972:19); Cambridgeshire, East Kent, Glamorgan, Huntingdonshire, Surrey, West Kent and West Norfolk (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).

Also recorded in Ireland (Spencer, 1972:19).

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 and widespread through much of Europe including S. Spain, Denmark, Finland, Sweden (Spencer, 1976: 45), Germany (Spencer, 1976: 542), Austria, Belgium, Czech Republic, Estonia, French mainland, Hungary, Italian mainland, Lithuania, Poland, Slovakia, Switzerland 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: