small, contorted gallery, in 'green island' often many in one leaf.
to the other Ectoedemia's on oak, the egg is deposited on
the leaf underside, near a vein. The larva makes a strongly contorted
corridor, that is not appreciably widenend at its end; often a number
of mines in a leaf. Puption outside 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).
Larva yellow, with green gut-line and dark brown head. Early
instars have black ventral plates, which are not present in the
final instar British
leafminers. Yellow with a dark head; ventral plates conspicuous, black (Gustafsson and van Nieukerken, 1990a). They can easily be confused with the larvae of E. rufifrontella (van Nieukerken ao, 2010a) (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The adult is illustrated in UKMoths by Rob Edmunds. The genitalia are not illustrated by the Lepidoptera
Dissection Group (check for update).
Hosts in Great Britain & Ireland:
of year - larvae: October - November (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread in southern England
including Bedfordshire (VC30), Cambridgeshire (VC29), East Norfolk (VC27), East Suffolk (VC25),
Huntingdonshire (VC31), North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), South Essex (VC18), South Hampshire (VC11), South Wiltshire (VC8), West Kent (VC16),
West Norfolk (VC28) and West Suffolk (VC26) (NBN
See also British
leafminers distribution map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Belgium,
Croatia, French mainland, Greek mainland, Italian mainland, ? Macedonia,
Romania 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.