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Leaf-mine:
The frass is brown and in arcs, with narrow clear margins (unlike
S. continuella where the green frass completely fills the
gallery) (British
leafminers). The mine is also illustrated in Nederlandse
bladmineerders.
Larva:
The larva is yellow, brown head, and dark ventral spots (British
leafminers). The larva is illustrated in Nederlandse
bladmineerders.
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: July - October (British
leafminers).
Time
of year - adults: Unknown.
Distribution
in Britain: British Is. (Karsholt & van Nieukerken in Fauna
Europaea) including North Somerset (NBN
Gateway distribution map - BRERC).
See also British
leafminers distribution map.
Distribution
elsewhere: Widespread in Europe including Austria, Belgium,
Czech Republic, French mainland, Hungary, Italian mainland, Norwegian
mainland, Poland, Russia - Central, Slovakia, Slovenia, Sweden,
Switzerland, The Netherlands and Yugoslavia. Also recorded in East
Palaearctic (Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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