Mine of Agromyza ferruginosa on Symphytum officinale Image: Willem Ellis (Bladmineerders van Europa)

Leaf-mine: A large blotch mine, several larvae feeding together (Spencer, 1972: 31).

A dozen eggs are deposited in a semicircle at the leaf underside. After hatching the larvae eat themselves a communual corridor. After the first moult they begin the making of a very large, dark brown communal blotch, with conspicuous secondary feeding lines (Bladmineerders van Europa).

Larva: The larva is illustrated in Bladmineerders van Europa.

Puparium: Details unknown.

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: September.

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Widespread including Surrey (Charterhouse), Cambridge (Chippenham Fen), Huntingdonshire (Woodwalton Fen) (Spencer, 1972: 31), Cambridgeshire, North Hampshire, West Kent and West Suffolk (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 Germany (Mines in BMNH), The Netherlands, Luxembourg (Bladmineerders van Europa), Belgium (Scheirs, de Bruyn and von Tschirnhaus, 1996), Czech Republic, French mainland, Poland and Slovakia (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: