Leaf-mine: A short rather broad linear mine, usually confined to a single leaf segment. Pupation external (Spencer, 1976: 232).

Upper-surface short and broad corridor, or more often a secondary blotch, normally restricted to the tip of one leaf segment. Frass in strings. The yellow larva leaves the mine before pupation. Feeding punctures lower-surface (Bladmineerders van Europa).

Forms compact, very convoluted mines, with stringy frass (British leafminers).

Larva: The larva is illustrated in Bladmineerders van Europa.

Puparium: Orange; posterior spiracles each with 3 bulbs (Spencer, 1976: 232). The puparium is illustrated in British leafminers.

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: June-November.

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Widespread. Kent (Folkeston), London (Hampstead), Gloucester (Kilcot), Lancaster (nr Manchester), Denbighshire (Cefn-y-bedd) (Spencer, 1972: 52), Warwickshire (Bedworth) (Robbins, 1991: 118), Hampshire (Fleet) (British leafminers); Cambridgeshire and Middlesex (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 the Republic of Ireland: Co. Wexford (Rosslar) (Spencer, 1972: 52).

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 central and western Europe, including Denmark, Finland, Sweden (Spencer, 1976: 232), The Netherlands, Belgium, Luxembourg (Bladmineerders van Europa), Germany (Spencer, 1976: 554), Corsica, Czech Republic, French mainland, Lithuania, Poland and Switzerland (Martinez, 200 in Fauna Europaea).

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

Parasitoids in Britain and elsewhere: