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Leaf-miner: The mine is rounded, between veins. The lower epidermis appears smooth or with several small creases (British leafminers).

The mine is also illustrated in 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).

The cremaster is illustrated in British leafminers.

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

Hosts in Great Britain and Ireland:

Aceraceae
Acer	platanoides	Norway Maple		British leafminers
Acer	platanoides	Norway Maple		Pitkin & Plant
Acer	platanoides	Norway Maple		UKMoths

Hosts elsewhere:

Aceraceae
Acer	platanoides	Norway Maple		Belgian Lepidoptera
Acer	platanoides	Norway Maple		Bladmineerders van Europa

Time of year - larvae: July, October (British leafminers).

Time of year - adults: May and August are the flight periods for the two generations of adults (UKMoths).

Distribution in Great Britain and Ireland: Commonest in south-east England, but is expanding northwards and has recently been found as far north as York (UKMoths) including Bedfordshire, Denbighshire, East Kent, East Norfolk, East Suffolk, Glamorgan, Hertfordshire, Huntingdonshire, Leicestershire, Middlesex, North Devon, North Essex, North Somerset, Shropshire, South-west Yorkshire, Stafford, Surrey, West Gloucetster, West Kent, West Lancashire, West Norfolk, West Suffolk, Westmorland and Worcestershire (NBN Atlas).

See also British leafminers distribution map.

Distribution elsewhere: Widespread in continental Europe including Austria, Belgium, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Italian mainland, Latvia, Lithuania, Republic of Moldova, Norwegian mainland, Poland, Russia - Central and Northwest, Slovakia, Slovenia, Sweden, Switzerland, The Netherlands and Ukraine (Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere: