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Leaf-mine:
The larva mines in a birch leaf, forming a large blotch (UKMoths)
starting at or near the leaf edge and then widens into a blotch
(British
leafminers).
Larva:
The larvae are white or yellowish (UKMoths)
and is illustrated in Nederlandse
bladmineerders.
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: April - May (British
leafminers).
Time
of year - adults: The adults fly in March and April, especially
in sunshine (UKMoths).
Distribution
in Britain: The commonest and most widespread of the Eriocrania
species that feed on birch, occurring throughout most of Britain
(UKMoths)
including Banff, Chester, East Kent, East Sutherland, Elgin, Fife,
Kincardine, North Aberdeen, North Hants, South Aberdeen, South Lancaster,
Surrey, Warwick, Westmorland and Worcester (NBN
Gateway distribution map - BRERC,
GiGL,HBRG,
NE,
NESBRC,
SNH and SHWRG).
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, Belarus,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Greek mainland, Hungary, Italian mainland, Latvia,
Lithuania, Luxembourg, Norwegian mainland, Poland, Romania, Russia
- Central, North and South, Slovakia, Spanish mainland, Sweden,
Switzerland and The Netherlands (Karsholt & van Nieukerken in
Fauna
Europaea).
Parasitoids:
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