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Bark-miner: A gallery in the bark of the food plant generally mining upwards, similar to that of Trifurcula immundella, which usually mines downwards (British leafminers).

The mines are very hard to detect, but in late spring, the small white pupal cocoons are easy to spot among the dark stems (UKMoths).

Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).

Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).

Pupation in a white silken cocoon attached to a stem (British leafminers). The cocoon is also illustrated in UKMoths.

Adult: The adult is illustrated in UKMoths. The species is included in mothdissection.co.uk.

Hosts in Great Britain and Ireland:

Fabaceae
Cytisus				British leafminers
Cytisus	scoparius	Broom		UKMoths
Genista	tinctoria	Dyer's Greenweed		British leafminers

Hosts elsewhere:

Fabaceae
Cytisus				Belgian Lepidoptera
Genista	tinctoria	Dyer's Greenweed		Belgian Lepidoptera

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

Time of year - adults: The adults fly during June and July (UKMoths).

Distribution in Great Britain and Ireland: Widespread and common throughout the whole of Britain (UKMoths) including Anglesey, Ayrshire, Banffshire, Bedfordshire, Breconshire, Caernarvonshire, Cumberland, Denbighshire, Dorset, Dumfriesshire, Dunbartonsahire, Durham, East Cornwall, East Kent, East Norfolk, East Ross, East Suffolk, Easterness, Elgin, Fife, Flintshire, Glamorgan, Haddington, Hertfordshire, Isle of Wight, Kincardineshire, Linlithgow, Montgomeryshire, North Aberdeenshire, North Northumberland, Outer Hebrides, Pembrokeshire, Shropshire, South Aberdeenshire, South Northumberland, South-west Yorkshire, Stafford, Stirlingshire, Surrey, West Cornwall, West Gloucestershire, West Norfolk, West Perthshire, West Suffolk, Westmorland, Wigtownshire and Worcestershire (NBN Atlas).

See also British leafminers distribution map.

Also recorded in the Republic of Ireland (National Biodiversity Data Centre Map).

Distribution elsewhere: Widespread in continental Europe including Austria, Belarus, Belgium, Czech Republic, Danish mainland, Estonia, French mainland, Germany, Hungary, Italian mainland, Luxembourg, Poland, Portuguese mainland, Romania, Russia - Northwest, Sicily, Slovakia, Spanish mainland, Sweden, Switzerland and The Netherlands. Also recorded in the Nearctic region and Australian region (Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere:

Belgian Lepidoptera
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
UKMoths