Leaf-miner: The mine starts from brown spot, later filled with greenish
frass. The mine is difficult to locate initially but becomes brown
as it ages (British
leafminers).
Egg
at the underside, often in a vein axil. The mine is a slender, little
widening corridor. Its first part is strongly contorted; the leaf
tissue that is cut off thereby is killed, mostly resulting in a
brown spot. The remainder of the corridor in contrast is very little
contorted, often remarkably straight, when it runs alongside a vein.
The corridor is almost completely filled with coiled frass, that
is green when fresh, brown later. Pupation external (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 yellow but appears green in mine (British
leafminers).
The
larva is yellow, but appears green when inside the mine. See Gustafsson
and van Nieukerken (1990a) for a description (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 (check for update). The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts elsewhere:
Time
of year - larvae: June - July, September - October (British
leafminers).
Time
of year - adults: On the wing in May and August (UKMoths).
Distribution
in Great Britain and Ireland: Occurring in southern and north-west
England (UKMoths)
including Bedfordshire, Buckinghamshire, Cambridgeshire, Carmarthenshire,
Cheshire, Derbyshire, East Kent, East Norfolk, East Suffolk, Glamorgan, Hertfordshire, Huntingdonshire, Monmouthshire, North Essex, North Hampshire, North Somerset, Northamptonshire, Shropshire, South Lancashire,
South Wiltshire, Stafford, Surrey, West Kent, West Norfolk, West Suffolk and Worcestershire (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,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Lithuania, Poland, Russia Central, 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: Currently unknown.
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