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Leaf-mine:
The fully developed 4 mm to 5 mm case is made of seven to ten mined
heather leaves arranged in a neat herring-bone pattern. The cases
closely resemble sprigs of heather and are best found by placing
swept debris in a box, where the larvae will reveal themselves by
climbing the sides (UKMoths).
The case is also illustrated in British
leafminers.
Larva:
Details unknown.
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: September to April (British
leafminers).
Time
of year - adults: Late June and July in afternoon sun over heather
on heaths, moors and occasionally gardens (UKMoths).
Distribution
in Britain: Most parts of Britain (UKMoths)
including Banff, East Kent, East Perth, East Ross, Easterness, Hereford,
Kincardine, Mid Perth, North Aberdeen, South Aberdeen, Surrey, West
Gloucester and Westmorland (NBN
Gateway distribution map - HBRG,
JNCC, NE,
NESBRC
and SNH).
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, Estonia, Finland, French mainland,
Germany, Greek mainland, Hungary, Italian mainland, Latvia, Norwegian
mainland, Poland, Portuguese mainland, Slovakia, Spanish mainland,
Sweden, Switzerland and The Netherlands (Karsholt & van Nieukerken
in Fauna
Europaea).
Parasitoids:
Unknown.
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