Leaf-miner:
Initially a narrow brownish mine with blackish frass at its base,
then moves to another leaf, forming a broader mine. Both mines can
pucker the blade (British
leafminers). Oviposition on the upperside of the leaf, often 2-3 eggs on the same leaf. Initially a narrow, brown, ascending corridor is made, with most frass in its basal part. This mine is soon vacated, and a new mine is made in another leaf. This secondary mine is an elongated, somewhat inflated blotch, as wide as the 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). Dull grey green; head light brown; prothoracic shield dark brown, divided (Traugott-Olsen & Nielsen, 1977a) (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Attached to leaf or stem with silken girdle (British
leafminers). Described by Patočka (1999a) (Bladmineerders van Europa).
Adult:
The adult is not illustrated in UKMoths. The species is illustrated in mothdissection.co.uk
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: October-April, July (British
leafminers).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Britain including Bedfordshire,
Cambridgeshire, Denbighshire, Derbyshire, Dorset, Durham, East Cornwall, East Norfolk, Glamorgan, Herefordshire, Hertfordshire, Huntingdonshire, North Hampshire, North Somerset, South Wiltshire, Stafford,
Surrey, West Cornwall, West Kent, West Lancashire, West Suffolk and Westmorland (NBN
Atlas).
See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland (Fauna Europaea). See National Biodiversity Data Centre Map).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, Danish mainland, Estonia, French mainland,
Germany, Hungary, Italian mainland, Latvia, Norwegian mainland,
Poland, Portuguese mainland, Romania, Russia - East, Slovakia, Spanish
mainland, Sweden, Switzerland and Ukraine (Fauna Europaea).
NBN
interactive distribution map(s) of known host species in Great Britain and Ireland:
British and Irish Parasitoids in Britain and elsewhere:
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