Lower-surface tentiform mine; lower epidermis with a numerous extremely
fine folds. The mine is exceptionally large, 25 mm on average, and
extends from midrib to leaf margin. The roof of the mine is largely
eaten out but generally a green centre is left over. Often several
mines in a leaf. The mine causes the leaf to contract strongly.
The pupa hangs in the mine, suspended by a loose net of silk. Frass
heaped in a corner of the mine (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).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Gregor and Patocka (200a), Patocka and Turcani (2005a). The
pupa strongly resembles the one of Phyllonorycter
harrisella (Bladmineerders van Europa).
The adult is illustrated in UKMoths. The genitalia are not illustrated by the Lepidoptera
Dissection Group (check for update).
Phyllonorycter distentella adult
Church Wood near Canterbury, Kent
Image: © Francis Solly
Hosts in Great Britain & Ireland:
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including East Kent
and Herefordshire (NBN
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NBN Grid Map Phyllonorycter distentella
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elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, French mainland, Germany, Hungary, Italian
mainland, Poland, Russia - South, Slovakia, Switzerland and Ukraine.
Also recorded in 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: