Leaf-mine: A short linear mine which considerably widens towards the end, normally starting in the centre of the leaf (Spencer, 1972: 86 (fig. 288); Spencer, 1976: 447).

A short, narrow, upper-surface corridor, starting the in the centre of the leaf, that suddenly widens strongly. The widened corridor loosely follows the leaf margin. Frass in irregularly scattered black granules. Primary feeding lines conspicuous. Pupation outside the mine; according to Allen (1956a) the exit slit is in the upper epidermis (Bladmineerders van Europa).

Larva: The larva is described by Allen (1957b); posterior spiracles each with approx., 13 bulbs; frontal appendix absent (Bladmineerders van Europa).

Puparium: Black, oval; posterior spiracles each with an ellipse of 12-15 bulbs (Spencer, 1976: 447).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: June-September.

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Surrey (Egham) (Spencer, 1972: 88), Warwickshire (Sutton Park and Alderman's Green) (Robbins, 1991: 65); Surrey (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 Austria, Germany, the [former] U.S.S.R (Ib, Byborg, Murula) (Spencer, 1976: 447) and Poland (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: