Leaf-miner: The initial gallery is twisted and can follow the leaf edge. It
contains broken linear frass. it then widens to form a blotch or
gallery, with scattered frass (British
on the leaf underside. There starts an initially strongly contorted
narrow corridor with a linear interrupted frass line. This is continued
in broad corridor or elongated blotch with dispersed frass. Often
a number of mines in a leaf. Pupation inside the mine, in a a violet
to blackish cocoon (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).
Greenish yellow, ganglia conspicuous, brown; head brown; ventral plates absent (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Pupation in the mine (British
The adult is not illustrated in UKMoths (check for update). The genitalia are not illustrated by the Lepidoptera
Dissection Group (check for update).
Hosts in Great Britain & Ireland:
of year - larvae: August - November (British
of year - adults: Currently unknown.
in Great Britain & Ireland: South-east England including
East Kent and South Wiltshire
See also British
leafminers distribution map.
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elsewhere: Widespread in continental Europe including Austria,
Belgium, Bulgaria, Croatia, Czech Republic, Estonia, Finland, French
mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia,
Republic of Moldova, Poland, Romania, Slovakia, Slovenia, Sweden,
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: