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Leaf-mine:
The larva mines downwards and forms an irregular mine with a silken
tube in the centre, which is mixed with frass (British
leafminers).
Larva:
The larva is illustrated in British
leafminers and UKMoths.
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: September-April (British
leafminers).
Time
of year - adults: There is a single generation, adults flying
during May and June (UKMoths).
Distribution
in Britain: Distributed in southern England and Wales, and also
occurring in parts of northern England and Ireland (UKMoths),
including Hereford, Isle of Wight, North Devon, North Hants, North
Somerset, West Kent (NBN
Gateway distribution map - BRERC
and NE)
and the Channel Is. (Karsholt & van Nieukerken in Fauna
Europaea). See also British
leafminers distribution map.
Also
recorded in the Republic of Ireland (Karsholt & van Nieukerken
in Fauna
Europaea).
Distribution
elsewhere: Widespread in Europe including Austria, Belgium,
Czech Republic, Danish mainland, French mainland, Germany, Greek
mainland, Hungary, Italian mainland, Latvia, Poland, Romania, Russia
- Central, Slovakia, Sweden, Switzerland and The Netherlands (Karsholt
& van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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