Leaf-mine: Larvae feeding singly, forming a long, widening mine on the upper surface of the leaf, which is generally limited to one side of the leaf. Pupation external, puparium glued to the leaf near the end of the mine (Spencer, 1976: 128).

Broad corridor, generally beginning near the leaf margin or close to the leaf tip. Most of the times the mine remains at one side of the midrib. The mine is upper-surface, but has some full depth, translucent spots here and there. Frass in rather regularly scattered grains. Pupation outside the mine. According to Dempewolf (2004a) only the male genitalia enable a reliable discrimination from A. abipennis and A. graminicola (Bladmineerders van Europa).

Larva: The larva was decribed by Griffiths (1963) and illustrated in Bladmineerders van Europa.

Puparium: Varying from black to reddish; posterior spiracular processes distinctly separated, each with 3 bulbs (Spencer, 1972: 34 (fig. 97); Spencer, 1976: 128).

Black or dark brown; not unfrequently stuck to the leaf (Bladmineerders van Europa).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: August.

Time of year - adults: There are two generations, in early summer and autumn.

Distribution in Great Britain and Ireland: Widespread and common in Britain including London (Hampstead), Surrey (Ash Vale and Bookham), Buckinghamshire (Beaconsfield) (Spencer, 1972: 38), Warwickshire (Longford) (Robbins, 1991: 136), Cambridgeshire, East Cornwall, Huntingdonshire, North Hampshire, North Somerset, Northamptonshire, Pembrokeshire, Stafford, Surrey, West Cornwall, West Kent and Westmorland (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. Clare (Spencer, 1972: 38).

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 Denmark, Finland, Norway, Sweden (Spencer, 1976: 128), The Netherlands (Bladmineerders van Europa), Belgium (de Bruyn and von Tschirnhaus, 1991) and Germany (Spencer, 1976: 546), Corsica, Czech Republic, Estonia, French mainland, Hungary, ? Italian mainland, Latvia, Lithuania, Poland, Slovakia and Spanish mainland (Martinez in Fauna Europaea).

Also recorded in Canada (Spencer, 1969a: 50; Spencer, 1990).

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

Parasitoids in Britain and elsewhere:

Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea [128913]
NBN Gateway