Leaf-mine: A gallery filled with green frass. In the older gallery the frass turns brown (British leafminers).

A narrow corridor. The coiled frass is greenish (blackish brown in old or dried mines). Generally the entire width of the corridor is filled up, making the mine rather inconspicuous. The sides of the corridor are not straight, rather irregular (Bladmineerders van Europa).

Larva: Bright green; see Gustafsson and van Nieukerken (1990a) and Schoorl et. al. (1985a) for an extensive description (Bladmineerders van Europa). The larva is green (British leafminers).

Pupa: Details unknown.

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

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: End of June-early July, August-early September (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Widespread in England including Herefordshire, Middlesex, Surrey, West Gloucestershire, West Kent and Worcestershire (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.

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, Bulgaria, Corsica, Croatia, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Lithuania, Norwegian mainland, Poland, Romania, Russia - Central, East and South, Slovakia, Slovenia, Sweden, Switzerland, 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.