initial mine expands to form a full depth blotch. It resembles Phyllonorycter
tenerella, but has a mottled lower surface. It then forms
two folds (British
angular, full depth blotch, often in a vein axil. Lower, in the
end also upper, epidermis brown. The larva deposits some silk in
the mine, but the quantity is so low that the mine remains practicaly
flat. Later the larva leaves the mine and continues feeding within
a downfolded leaf margin or leaf tip (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).
Described by Emmet (1987a). Pronotum with four black spots (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, but not the female genitalia (check for update), are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: June-July, September-October (British
of year - adults: Currently unknown.
in Great Britain & Ireland: South-east England including
North Essex (VC19), South Hampshire (VC11), South Wiltshire (VC8), Surrey and West Kent
See also British
leafminers distribution map.
NBN Grid Map:
elsewhere: Widespread in continental Europe including Austria,
Belgium, Bulgaria, Croatia, Czech Republic, French mainland, Germany,
Greek mainland, Hungary, Italian mainland, Macedonia, Poland, Romania,
Russia - Central, Sardinia, Sicily, Slovakia, Slovenia, Sweden,
Switzerland, The Netherlands 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: Currently unknown.