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Leaf-mine: The mine in the petiole and midrib leads to an oval blotch,
then a cut-out in leaf-blade (British
leafminers).
The
larva begins its life as a borer in the pith of a twig. Only when
it is almost full grown it enters a petiole, then the midrib, of
a leaf. The leaf becomes starved that way, and turns somehwat pale.
From the midrib a short full depth corridor runs into the blade,
generally in the basal part of the leaf. The corridor usually is
quite short but when it happens to be longer a central frass line
is visible. Finally an oval excision of about 3 x 5 mm is cut out,
in which the larva drops to the ground (Bladmineerders
van Europa).
Larva:
Described by Patočka and Turčáni (2005a) (Bladmineerders
van Europa).
Pupa:
Details unknown.
Adult:
The adult is illustrated in UKMoths by Jon Baker.
The male
and female
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - larvae: July - August (British
leafminers).
Time
of year - adults: The moths fly in May and June (UKMoths).
Distribution
in Great Britain and Ireland: Distributed in England and Wales
north to Cumbria, this tiny leaf-mining species is locally common
(UKMoths)
including Banff, Bedfordshire, Buckinghamshire, Cambridgeshire,
Cheshire, Derbyshire, East Cornwall, East Norfolk, East Suffolk,
Glamorgan, Herefordshire, Isle Of Wight, Kincardine, Mid-west Yorkshire,
North Aberdeen, North Devon, North Ebudes, North Essex, North Wiltshire,
Northamptonshire, Shropshire, South Aberdeen, South Devon, South
Wiltshire, South-west Yorkshire, Stafford, Surrey, West Gloucestershire,
West Norfolk and West Suffolk (NBN
Gateway - N.B. includes Watsonian Vice Counties having publicly available records
that fall within or overlap the vice county border at 10km resolution
or better i.e. a record for a vice county may relate to an adjacent vice county - for included datasets see NBN Grid map below). See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna
Europaea).
NBN Grid map: Note that not all datasets on the NBN Gateway may be available on the map below. If you are an NBN Gateway registered user you can request access for missing datasets via the link 'Open interactive map in new window' below.
Distribution
elsewhere: Widespread in continental Europe including Austria,
Czech Republic, Danish mainland, Finland, French mainland, Germany,
Latvia, Lithuania, Norwegian mainland, Poland, Romania, Russia -
Central and North, Sweden and The Netherlands (Karsholt and van
Nieukerken in Fauna
Europaea).
NBN
interactive distribution map(s) of known host species in Great Britain
and Ireland and elsewhere:
Parasitoids
in Britain and elsewhere: Unknown.
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