Seed-feeder and case-bearer: Larva feeds on seeds. The full-grown case is 5 mm long, the oral end enclosed within a seed-head (British leafminers).

The case is illustrated in UKMoths.

Larva: Details unknown.

Pupa: Details unknown.

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

Hosts in Britain:

Hosts elsewhere: Unknown.

Time of year - larvae: August to November (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Britain and Northern Ireland (Karsholt and van Nieukerken in Fauna Europaea) including Anglesey, Bedfordshire, Caernarvonshire, Cambridgeshire, Dorset, East Kent, East Ross, East Suffolk, Easterness, Glamorgan, Herefordshire, Huntingdonshire, Merionethshire, North Aberdeen, North Ebudes, North Wiltshire, Northamptonshire, Shropshire, South Aberdeen, South Hampshire, South Lancaster, South Wiltshire, Stafford, Surrey, West Cornwall, West Gloucestershire, West Kent, West Norfolk, West Suffolk 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).

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 Albania, Austria, Belgium, Croatia, Czech Republic, Danish mainland, Finland, French mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Liechtenstein, Lithuania, North Aegean Is., Norwegian mainland, Poland, Portuguese mainland, Romania, Russia - South, Sardinia, Slovakia, Spanish mainland, Sweden, Switzerland and The Netherlands. Also recorded in the Near East (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: