Leaf-miner
and case-bearer: Larva mining leaves, the blotches brownish. The final case is 8-11
mm long, slender, and fixed at 45° to leaf surface, with anal
end laterally compressed. The case has a serrated keel due to formation
from the edge of a leaf (British
leafminers).
Spatulate
leaf case. Strikingly slender, bivalved case, 8-11 mm long, with
a slight curve at the rear end, that is keeled and often toothed.
The end is laterally compressed. Mouth angle 45°. The full depth
mines often are conspicuously brown (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 illustrated in 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: August to September, with some larvae developing
more slowly, and feeding again in April and May (British
leafminers).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Britain including Bedfordshire,
Cambridgeshire, Dorset, East Cornwall, East Kent, East Norfolk, East Ross, East Suffolk, Flintshire, Glamorgan,
Herefordshire, Hertfordshire, Huntingdonshire, Isle of Wight, Leicestershire, North Essex,
North Hampshire, Nottinghamshire, Shropshire, South Aberdeenshire, South Hampshire, South Somerset, South Wiltshire, South-west Yorkshire, Stafford, Stirlingshire, Surrey, West Gloucestershire,
West Norfolk, West Perthshire, West Suffolk, Westmorland and Worcestershire (NBN
Atlas).
Also
recorded in the Republic of Ireland (Fauna Europaea and National Biodiversity Data Centre Map).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Croatia, Czech Republic, Danish mainland, Estonia, Finland,
French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania,
Macedonia, Norwegian mainland, Poland, Romania, Russia - Central,
North and South, Sardinia, Slovakia, Slovenia, Spanish mainland,
Sweden, Switzerland and The Netherlands. Also recorded in East Palaearctic
and Near East (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
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