Leaf-mine: Mine a brownish blotch, at apex of leaf segment, several larvae feed together. Pupation in mine (Spencer, 1972: 94).

Greenish, later brownish, upper-surface blotch in the tip of a leaf segment, without a trace of an initial corridor. Often several larvae share a mine. No secondary feeding lines. Frass in numerous blackish green granules that are irregularly scattered. Pupation within the mine, puparia loose in the mine (Bladmineerders van Europa).

Larva: The puparium is described by (Hering, 1957a) (Bladmineerders van Europa).

Puparium: Brown (Spencer, 1972: 94).

Reddish brown; described by de Meijere (1926a) (Bladmineerders van Europa).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: August.

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Uncommon. Derby (Miller's Dale) (Spencer, 1972: 94) and Warwickshire (Combrook) (Robbins, 1991: 122).

NBN Grid map:

Distribution elsewhere: Widespread in continental Europe including Germany (Hendel, 1920: 167)

NBN interactive distribution map(s) of known host species in Great Britain and Ireland and elsewhere:

Parasitoids in Britain and elsewhere: Unknown.