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Leaf-mine:
The mine is upper side, oval, over midrib or side-vein - the
upper epidermis flimsy with one strong crease (British
leafminers). Unlike other species that form an upperside mine,
the surface is not papery, but quite glossy and heavily creased.
The mine begins green and then turns orange or brown when more mature
(UKMoths).
The mine is also illustrated in Nederlandse
bladmineerders.
Larva:
The
larva is illustrated in British
leafminers and Nederlandse
bladmineerders.
Pupa:
The
pupa is formed in a white cocoon (British
leafminers).
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: July, October (British
leafminers).
Time
of year - adults: Two generations, with a flight period in May
and August (UKMoths).
Distribution
in Britain: A common and widespread moth in England and Wales,
with only a very few Scottish records (UKMoths)
including Bucks, Cambridge, Dorset, East Cornwall, Hereford, Hunts,
Isle of Wight, Middlesex, North Ebudes, North Hants, Salop,
South Devon, Stafford, West Suffolk and
Worcester (NBN
Gateway distribution map - BRERC,
DBRC,
GiGL, HBRG,
JNCC and NE).
See also British
leafminers distribution.
Distribution
elsewhere: Widespread in Europe including Austria, Belgium,
Bulgaria, Corsica, Czech Republic, Danish mainland, Estonia, Finland,
French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania,
Norwegian mainland, Poland, Romania, Russia - Central and Northwest,
Slovakia, Slovenia, Sweden, Switzerland and The Netherlands (Karsholt
& van Nieukerken in Fauna
Europaea).
Parasitoids:
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