Leaf-miner: The gallery is contorted in a series of S turns. The frass is initailly
cloudy but then darker green being either dispersed or coiled (as
shown). A little area of uneaten leaf is between each traverse.
Finally the frass turns black and is deposited in a central line.
The larva is greenish yellow, head pale brown (British
leafminers).
Full
depth corridor, beginning at an under-surface egg shell. The corridor
makes several sharp turns, causing the loops to (mostly) almost
touch each other. In the last section the corridor is appreciably
wider. Frass olive green when fresh, brown later, coiled for most
of the length of the corridor. Pupation outside the mine (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 yellow, head pale brown (British
leafminers). Yellowish green; see the description in 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 (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: Currently unknown.
Distribution
in Great Britain and Ireland: Britain including Bedfordshire,
Cambridgeshire, East Gloucestershire, Glamorgan, Herefordshire,
Huntingdonshire, North Hampshire, North Somerset, South Wiltshire,
Surrey, West Gloucestershire, 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, Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Hungary, Italian mainland, Latvia,
Lithuania, Norwegian mainland, Poland, Romania, Russia - Central
and East, 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:
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