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Leaf-mine:
The first generation gallery is short, the second generation is
longer. The frass is in a narrow line (British
leafminers).
Larva:
The larva whitish-yellow, head pale brown (this distinguishes it
from S. atricapitella
which has a dark head) (British
leafminers).
Pupa:
Details
unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: July, September - October (British
leafminers).
Time
of year - adults: Unknown.
Distribution
in Britain: British Is. (Karsholt & van Nieukerken in Fauna
Europaea) including Banff, Bedford, East Cornwall, East Kent,
Elgin, Hunts, Isle of Wight, Main Argyll, Middlesex, North Aberdeen,
North Ebudes, North Essex, South Aberdeen, South Devon, South Lancaster,
Stirling, Surrey, Warwick and Worcester (NBN
Gateway distribution map - BRERC,
DBRC,
GiGL, HBRG,
JNCC, NE,
NESBRC,
SNH and SHWRG).
See also British
leafminers distribution map.
Distribution
elsewhere: Widespread in Europe including Austria, Belgium,
Croatia, Czech Republic, Danish mainland, Finland, French mainland,
Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania,
Macedonia, Norwegian mainland, Poland, Russia - Central, Sardinia,
Sicily, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland,
The Netherlands and Ukraine. Also recorded in Near East (Karsholt
& van Nieukerken in Fauna
Europaea).
Parasitoids:
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