Leaf-mine: The larva mines downwards and forms an irregular mine with a silken tube in the centre, which is mixed with frass (British leafminers).

Mine transparent (therefore conspicuous), generally descending from the leaf tip. Over the entire length of the mine stretches a central silken tube, in which the larva can retreat and can move quickly up or down. The tube also contains the frass. The larva feeds laterally from the tube, which makes the sides of the mine very irregular (Bladmineerders van Europa).

Larva: The larva is illustrated in British leafminers, UKMoths and Bladmineerders van Europa.

Pupa: Details unknown.

Adult: The adult is illustrated in UKMoths by John Walters. The male genitalia, but not the female genitalia (check for update), are illustrated by the Lepidoptera Dissection Group.

Hosts in Britain:

Hosts elsewhere:

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

Time of year - adults: There is a single generation, adults flying during May and June (UKMoths).

Distribution in Great Britain and Ireland: Distributed in southern England and Wales, and also occurring in parts of northern England and Ireland (UKMoths), including Bedfordshire, Denbighshire, East Suffolk, Herefordshire, Isle Of Wight, North Devon, North Essex, North Hampshire, North Somerset, South Wiltshire, 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) and the Channel Is. (Karsholt and van Nieukerken in Fauna Europaea). 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, Belgium, Czech Republic, Danish mainland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Poland, Romania, Russia - Central, Slovakia, Sweden, Switzerland and The Netherlands (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.