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Leaf-miner: A narrow gallery leads abruptly to large blotch (British leafminers).

Oviposition on the leaf underside. The mine begins as a very slender winding corridor of 15-20 mm, the second part of which is almost stuffed with frass. The corridor abruptly widens into a blotch with dispersed frass; in large leaves this blotch is almost circular. Mostly the midrib is not crossed, but the mine can occupy the major part of a leaflet. Often several mines in leaf (Bladmineerders van Europa).

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).

The larva is greenish-white, with dark ventral spots (British leafminers).

Very pale green, head light brown; described by Gustafsson and van Nieukerken (1990a) (Bladmineerders van Europa).

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

Adult: The adult is not illustrated in UKMoths. The species is included in mothdissection.co.uk.

Hosts in Great Britain and Ireland:

Rosaceae
Sorbus				Pitkin & Plant
Sorbus	aucuparia	Rowan		British leafminers
Sorbus	aucuparia	Rowan		UKMoths

Hosts elsewhere:

Rosaceae
Amelanchier				Bladmineerders van Europa
Cotoneaster	integerrimus	Wild Cotoneaster		Bladmineerders van Europa
Cotoneaster	simonsii	Himalayan Cotoneaster		Bladmineerders van Europa
Malus	pumila	Apple		Bladmineerders van Europa, as Malus domestica
Sorbus	americana			Belgian Lepidoptera
Sorbus	aucuparia	Rowan		Belgian Lepidoptera
Sorbus	aucuparia	Rowan		Bladmineerders van Europa
Sorbus	intermedia	Swedish Whitebeam		Bladmineerders van Europa
Sorbus	torminalis	Wild Service-tree		Bladmineerders van Europa

Time of year - larvae: June (British leafminers).

Time of year - adults: On the wing in May (UKMoths).

Distribution in Great Britain and Ireland: The species is commonest in the north of England and Scotland, and is more localised in southern England and Ireland (UKMoths) including Banffshire, Breconshire, Caernarvonshire, Cardiganshire, Cheshire, Cumberland, Denbighshire, Derbyshire, Dumfriesshire, Dunbartonshire, Durham, East Cornwall, East Norfolk, East Ross, East Sutherland, Easterness, Edinburgh, Elgin, Glamorgan, Haddington, Hertfordshire, Kincardineshire, Kirkudbrightshire, Linlithgow, Main Argyll, Merionethshire, Mid-west Yorkshire, Monrgomershire, North Aberdeenshire, North Devon, North Ebudes, North Northumberland, North Somerset, North-east Yorkshire, Shropshire, South Aberdeenshire, South Northumberland, South-east Yorkshire, South-west Yorkshire, Stafford, Stirlingshire, West Cornwall, West Gloucestershire, West Norfolk, West Perthshire, West Suffolk, West Sutherland, Westmorland, Wigtownshire, Worcestershire and Shetland (NBN Atlas).

See also British leafminers distribution map.

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

Distribution elsewhere: Widespread in continental Europe including Austria, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Greek mainland, Italian mainland, Latvia, Lithuania, Norwegian mainland, Poland, Romania, Russia - Central, North and Northwest, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine. Also recorded in East Palaearctic (Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere: