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Leaf-mine:
The larval mine is a long gallery with linear black frass to
begin with, subsequently neatly scattered, and finally more central
and irregular. The egg is usually laid on the underside of the leaf
(UKMoths).
Larva:
Details
unknown.
Pupa:
Details
unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: July to September (UKMoths).
Time
of year - adults: Thought to be only a single extended generation,
adults in May and June (UKMoths).
Distribution
in Britain: British Is. (Karsholt & van Nieukerken in Fauna
Europaea) including Berks, Dunbarton, East Kent, Hunts, Main
Argyll, North Aberdeen, North Devon, Salop, South Essex, South Hants,
South Wilts, Stafford, Stirling, West Perth and Worcester (NBN
Gateway distribution map - JNCC,
NE,
NESBRC
and SNH).
Also
doubtfully recorded in the Republic of Ireland (Karsholt & van
Nieukerken in Fauna
Europaea).
Distribution
elsewhere: Europe including Danish mainland, Finland, French
mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia,
Norwegian mainland, Slovakia, Sweden and The Netherlands (Karsholt
& van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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