Leaf-mine: The slender larva mines the leaves, stems and upper rootstock (UKMoths).

Larva: The larva is illustrated in UKMoths.

Pupa: Details unknown.

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

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: September to May (UKMoths).

Time of year - adults: The adults fly in July and August and are attracted to light (UKMoths).

Distribution in Great Britain and Ireland: Scarce and locally distributed in marshes, fens and other wet habitats in south and south-east England, including Dorset and Gloucester, with some records as far north as Chester and Lancaster (UKMoths); Bedfordshire, Berkshire, Buckinghamshire, Cambridgeshire, Derbyshire, Dorset, East Kent, East Norfolk, East Suffolk, East Sussex, Glamorgan, Herefordshire, Hertfordshire, Huntingdonshire, Isle Of Wight, Middlesex, Monmouthshire, North Essex, North Somerset, North Wiltshire, South Devon, South Essex, South Hampshire, South Wiltshire, Stafford, Surrey, West Gloucestershire, 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).

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, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia, European Turkey, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Macedonia, Norwegian mainland, Poland, Portuguese mainland, Romania, Russia - Central, East and South, Sardinia, Slovakia, Spanish mainland, Sweden, The Netherlands and Ukraine (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.