Leaf-mine: The mine formed is long, inflated and puckers the leaf surface. The larva often swaps leaves (British leafminers).

Oviposition generally at the underside of the top half of the leaf. Between September and the end of February a very narrow mine is made, not longer than 3 cm, parallel to the midrib. The mine then suddenly widens to almost the full width of the leaf. The frass is concentrated in the transition area of the two mine types. In the broad part folds develop. Larvae can make a new mine, obviously without the initial part. Here the frass in concentrated around the entrance hole. Pupation outside the mine (Bladmineerders van Europa).

Larva: Head pale honey coloured, mouth-parts a little darker; prothorcic and anal plates and thoracic legs likewise; body greenish black (Langmaid, 2007a) (Bladmineerders van Europa).

Pupa: Details unknown.

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: September - June (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Occurs in South West England, from Monmouth in Wales and the East of Scotland (British leafminers) including Caernarvonshire, Derbyshire, Easterness, Herefordshire, Kincardine, Leicestershire, Merionethshire, Monmouthshire, North Aberdeen, North Devon, Northamptonshire, Shropshire, South Aberdeen, South Hampshire, South Wiltshire, Stafford, West Gloucestershire 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: Continental Europe including Romania (Karsholt and van Nieukerken in Fauna Europaea), Germany and The Netherlands (Bladmineerders van Europa).

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

Parasitoids in Britain and elsewhere: Unknown.