invariably at the leaf underside. From there runs a short gallery,
often partly following the leaf margin, almost stuffed with frass.
The corridor widens into a blotch that may occupy half a leaf; the
frass here is dispersed. Pupation extrernal. Vacated mines turn
black (Bladmineerders van Europa).
A short gallery, almost filled with frass, which usually follows the leaf edge then becomes a blotch, with dispersed frass, and occupying half the leaf. The vacated mines appear black (British
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).
Yellow (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 genitalia are not illustrated by the Lepidoptera
Dissection Group (check for update).
Hosts in Great Britain & Ireland:
of year - larvae:
About the first half of July and the first half of October (Bladmineerders van Europa).
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including East Kent
See also British
leafminers distribution map.
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna Europaea).
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Belgium,
Czech Republic, Danish mainland, Finland, Germany, Lithuania, Norwegian
mainland, Poland, Russia - Central, North and Northwest, Sweden
and The Netherlands (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.