Leaf-miner: The larvae mine oak leaves, initially in a gallery following a vein,
then creating a triangular blotch between vein and midrib. It can
be distinguished from the similar mines of E.
heringi by the presence of a slit in the lower epidermis
which allows frass and water to pass (UKMoths).
on the upperside of the leaf, next to a vein. The mine begins as
a narrow corridor, filled with frass, running along a vein: usually
the midrib, or along a lateral vein and then running in the direction
of the midrib. The corridor abruptly widens into a blotch, usually
in the axil of the midrib and a side vein. The larva makes a slit
in the lower epidermis of the blotch, by which part of the frass
is ejected. Pupation external (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 white, head and pronotal plate blackish-brown
leafminers). The larva is also illustrated in
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.
The male and female
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: October - November (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Commonest in south-east England,
the distribution expands north and westwards, though the exact distribution
is unclear because of earlier confusion with similar species (UKMoths)
including Bedfordshire (VC30), Cambridgeshire (VC29), Cheshire (VC58), Derbyshire (VC57), East Kent (VC15), East Norfolk (VC27), East Suffolk (VC25), East Sussex (VC14), Glamorganshire (VC41), Herefordshire (VC36),
Huntingdonshire (VC31), Middlesex (VC21), North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), Shropshire (VC40), South Hampshire (VC11), South Lancashire (VC59),
South Wiltshire (VC8), South-west Yorkshire (VC63), Staffordshire (VC39), Surrey (VC17), Warwickshire (VC38),
West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26) and
Worcestershire (VC37) (NBN
See also British
leafminers distribution map.
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See also Ireland's NBDC interactive map.
NBN Grid Map:
NBN Grid Map : NBN Terms and Conditions
Maps are only displayed if the NBN server is active. N.B. Only publicly available records, if any, are shown by default
elsewhere: Widespread in continental Europe including Austria,
Belgium, Bosnia and Herzegovina, Croatia, Czech Republic, Danish
mainland, Estonia, Finland, French mainland, Germany, Greek mainland,
Hungary, Italian mainland, Latvia, Luxembourg, ? Macedonia, Republic
of Moldova, Norwegian mainland, Poland, Portuguese mainland, Romania,
Russia - Central, Sicily, Slovakia, Slovenia, Spanish mainland,
Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia (Karsholt
and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: