The first case is cut out of an oval mine in the centre of the leaf.
The second and third, final, case are excised out of a mine along
the leaf margin, and therefore have a serrate dorsal keel. The final
case is a spatulate leaf case, 6-7 mm long, with a bivalved, square-cut
rear end. The mouth angle is c. 45°. See Emmet et al. (1996a)
(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).
See Emmet at al. (1996a) (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: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including Bedfordshire (VC30),
Cambridgeshire (VC29), Isle of Wight (VC10),
Northamptonshire and South Devon (NBN
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elsewhere: Widespread in continental Europe including Austria,
Czech Republic, Danish mainland, French mainland, Germany, Greek
mainland, Italian mainland, Norwegian mainland, Poland, Sardinia,
Sicily, Slovakia, Spanish mainland and Sweden (Karsholt and van
Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: