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Leaf-mine:
The mine formed in the leaf-veins and midrib leads to an oval
blotch (British
leafminers). When fully fed, the larva cuts out an oval case,
in which it descends to the ground and pupates (UKMoths).
The leaf-mine is also illustrated in Nederlandse
bladmineerders.
Larva:
Details unknown.
Pupa:
Details
unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: June-September (British
leafminers).
Time
of year - adults: The adult moths fly in a single generation
from late May to July, often in sunshine around alder branches (UKMoths).
Distribution
in Britain: The moth is widespread and locally common throughout
England, Wales and parts of Southern Scotland (UKMoths)
including Banff, Cambridge, East Kent, East Perth, East Ross, Isle
of Wight, North Aberdeen, North Devon, North Ebudes, North Hants,
South Aberdeen, South Devon, South-west York, Stirling, Warwick,
Worcester (NBN
Gateway distribution map - DBRC,
HBRG, NE,
NESBRC
and SNH) and
Northern Ireland (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,
Corsica, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Kaliningrad Region, Latvia, Norwegian
mainland, Poland, Romania, Russia - Central and North, Slovakia,
Sweden, Switzerland and The Netherlands (Karsholt & van Nieukerken
in Fauna
Europaea).
Parasitoids:
Unknown.
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