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
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).
The adult is not illustrated in UKMoths (check for update). The male
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: August to September, with some larvae developing
more slowly, and feeding again in April and May (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Bedfordshire (VC30),
Buckinghamshire (VC24), East Kent (VC15), East Ross (VC106), East Suffolk (VC25), Glamorganshire (VC41),
Herefordshire (VC36), Hertfordshire (VC20), Isle of Wight (VC10), Middlesex (VC21), North Essex (VC19),
North Hampshire (VC12), Shropshire (VC40), South Aberdeenshire (VC92), South Hampshire (VC11), South Wiltshire (VC8), South-west Yorkshire (VC63), Staffordshire (VC39), Surrey (VC17), West Gloucestershire (VC34),
West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See also Ireland's NBDC interactive map.
NBN Grid Map:
NBN Grid Map : NBN Terms and Conditions
Maps are only displayed if the NBN server is active. N.B. Only publicly available records, if any, are shown by default
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 (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: