Leaf-mine: Winding full depth corridor up to 15 mm long with a long larval chamber. Black frass in a central line, broad, but leaving a clear zone at either side. Characteristically the corridor has 2-4 short, frass-free, side branches (diverticula) occurring at points where the main corridor makes a sharp turn. The first one often is interparenchymatous tissue and difficult to see; the following turns usually have opening in the lower epidermis at their end. Older larvae live free on the leaf, creating windows; the exit hole is in the underside of the leaf (Bladmineerders van Europa).

The mine is also illustrated in British leafminers.

Larva: Mining larva with a black ventral spot on each abdominal segment. Free-living larva dull green above, pale yellow laterally and ventrally with some fragmented purplish subdorsal lines (Langmaid, Porter and Collins, 2007a) (see Bladmineerders van Europa).

The larva is illustrated in British leafminers.

Pupa: The larva pupates in an oval cocoon that, contrary to what is usual in Bucculatrix, is not ribbed lengthwise (Langmaid, Porter and Collins, 2007a) (see Bladmineerders van Europa).

Adult: The adult is illustrated in UKMoths. The male and female genitalia are illustrated by the Lepidoptera Dissection Group.

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: July -September (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Britain including Hampshire (Dogmersfield and Odiham Common), Suffolk and Surrey (Farnham) (British leafminers); Bedfordshire, Cambridgeshire, Derbyshire, East Norfolk, East Suffolk, Herefordshire, Isle Of Wight, North Essex, South Devon, South Wiltshire, Stafford, West Kent, West Norfolk, West Suffolk and Worcestershire (NBN Gateway, includes Watsonian Vice Counties having records that fall within or overlap the vice county border at 10km resolution or better). See also British leafminers dsitribution map.

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, Belarus, Belgium, Croatia, Czech Republic, Estonia, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Macedonia, Norwegian mainland, Poland, Romania, Russia - Central, East and Northwest, Sardinia, Slovakia, Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia (Karsholt and van Nieukerken in Fauna Europaea).

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

Parasitoids in Britain and elsewhere: Unknown.