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Leaf-mine:
The initial gallery is narrow and is filled with red-brown coiled
frass. It then turns abruptly to form a blotch with a thin line
of blackish frass, which may be coiled or irregular (British
leafminers).
Larva:
The
larva is yellow with a pale brown head (British
leafminers).
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: August - November (British
leafminers).
Time
of year - adults: Unknown.
Distribution
in Britain: British Is. (Karsholt & van Nieukerken in Fauna
Europaea) including Bucks, East Kent, Hunts, Isle of Wight,
North Hants, West Suffolk and Worcester (NBN
Gateway distribution map - BRERC
and NE).
See also British
leafminers distribution map.
Distribution
elsewhere: Widespread in Europe including Austria, Belgium,
Bosnia and Herzegovina, Corsica, Croatia, Czech Republic, Danish
mainland, Estonia, French mainland, Germany, Hungary, Italian mainland,
Macedonia, Poland, Romania, Slovakia, Slovenia, Spanish mainland,
Sweden, Switzerland, The Netherlands and Ukraine. Also recorded
in East Palaearctic (Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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