Samara-miner: The larva feeds on buds in the spring. In the Summer it feeds on
seeds forming a gallery in the wing (British
on the wing of a key (samara). The larva makes a short superfical
corridor (sometime only the egg is visible) running towards the
seed. Finally the seed is eaten out. Attacked fruits remain on the
plant (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).
Pale amber, head yellowish (Emmet, 1983a; Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Pupation in a brownish cocoon, often on the stem (Bladmineerders van Europa).
The adult is illustrated in UKMoths. The female genitalia, but not the male gemitalia (check for update), are illustrated by the Lepidoptera
Hosts in Great Britain & Ireland:
of year - larvae: June, August - September, October (British
of year - adults: Emmet (1983a) speculates that in the UK sometimes
two summer generation occur (Bladmineerders van Europa).
in Great Britain & Ireland: Widespread in Britain including
Bedfordshire (VC30), Buckinghamshire (VC24), Cambridgeshire (VC29), East Norfolk (VC27), East Suffolk (VC25), Glamorganshire (VC41), Herefordshire (VC36), Monmouthshire (VC35), North Essex (VC19), South Wiltshire (VC8), Surrey (VC17), West Gloucestershire (VC34), West Kent (VC16), West Suffolk (VC26) and Worcestershire (VC37) (NBN
See also British
leafminers distribution map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Austria,
Croatia, Czech Republic, Danish mainland, Germany, Hungary, Italian
mainland, Poland, Romania, Slovakia, Slovenia, Switzerland and Ukraine
(Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: