Leaf-mine: Oviposition at the leaf underside, usually near a vein. The mine is a narrow, hardly widening, corridor that makes about 5 whole of half circles closely around the egg. The leaf tissue around th mine is intensely reddened; often several mines in a leaf. Frass in a narrow central line. Pupation outside the mine (Bladmineerders van Europa).

The gallery starts in tight spirals, turning leaf red (British leafminers).

The larva moves away in an irregular gallery (UKMoths).

Larva: Larva pale yellow (British leafminers). Body pale yellowish, head very pale light brown (Gustafsson and van Nieukerken, 199a) (Bladmineerders van Europa).

Pupa: Pupation on detritus in a cocoon (British leafminers).

Adult: The adult is illustrated in UKMoths. The genitalia are not illustrated by the Lepidoptera Dissection Group (check for update).

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: May - June, August - October (British leafminers).

Time of year - adults: There are two or three generations, with adults on the wing between April and July (UKMoths).

Distribution in Great Britain and Ireland: Britain including Cardiganshire, East Norfolk, East Suffolk, North Devon, Surrey, West Norfolk 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). See also British leafminers distribution map.

Also recorded in the Republic of Ireland (Karsholt and van Nieukerken in Fauna Europaea).

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, Czech Republic, Danish mainland, Estonia, French mainland, Germany, Lithuania, Poland, Romania, Slovakia, Slovenia, Sweden, Switzerland 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.