Leaf-miner: The
larva creates a narrow gallery containing black or brownish frass,
and subsequently one or more shorter mines or windows (UKMoths).
At
first a long, narrow, corridor with brown or black frass in a central
line; the mine may be upper- or lower-surface of even interparenchymatous,
and often enters the cortex of the stem. After some time this mine
is vacated and the larva starts making several short full depth
blotches. Some larvae keep this habit until short before pupation,
others soon begin window-feeding (Bladmineerders van Europa).
The
mine is also illustrated in British
leafminers.
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 illustrated in UKMoths
and by Emmet (1985a) (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The larva pupates in a white ribbed cocoon and is illustrated in UKMoths.
Adult:
The adult is illustrated in UKMoths.
The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: April - May and July - August (British
leafminers).
Time
of year - adults: June and August (UKMoths).
Distribution
in Great Britain and Ireland: A relatively common species
around the coastal saltings of England and Wales, though probably
overlooked as an adult due to its size (UKMoths);
Anglesey, Caernarvonshire, Cardiganshire, Denbighshire, Dorset, Dunbartonshire, Durham, East Cornwall, East Norfolk, East Suffolk, Flintshire, Glamorgan, Haddington, Isle of Wight, Kirkudbrightshire, Merionethshire, North
Essex, North Northumberland, North Somerset, Pembrokeshire, South-east Yorkshire, and West Cornwall, West Gloucesterhire, West Lancashire, West Norfolk and Westmorland (NBN
Atlas).
See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland and Northern Ireland (Fauna Europaea and National Biodiversity Data Centre Map).
Distribution elsewhere: Widespread in continental Europe including Austria, Belgium,
Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Italian mainland, Latvia, Norwegian
mainland, Poland, Portuguese mainland, Romania, Russia - Central,
East, North and Northwest, Slovakia, Sweden, The Netherlands and
Ukraine (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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