Leaf-miner: A
small, contorted gallery, in 'green island' often many in one leaf.
(British
leafminers).
Contrary
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).
Adult:
The adult is illustrated in UKMoths by Rob Edmunds. The species is included in mothdissection.co.uk.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: October - November (British
leafminers).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Widespread in southern England
including Bedfordshire, Cambridgeshire, Dorset, East Cornwall, East Norfolk, East Suffolk,
Huntingdonshire, Isle of Wight, North Essex, North Hampshire, North Somerset, North Wiltshire, Shropshire, South Essex, South Hampshire, South Wiltshire, West Norfolk, West Suffolk and Worcestershire (NBN
Atlas).
See also British
leafminers distribution map.
Distribution
elsewhere: Widespread in continental Europe including Belgium,
Croatia, French mainland, Greek mainland, Italian mainland, ? Macedonia,
Romania and The Netherlands (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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