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Leaf-mine:
Early mine a silvery gallery in lower epidermis. Subsequently
a blotch on the upper epidermis. Internal spinning causes the leaf
to pucker and often fold over the blotch, concealing it British
leafminers and Nederlandse
bladmineerders.
Larva:
The larva is illustrated in Nederlandse
bladmineerders.
Pupa:
In a cocoon inside one end of the mine (British
leafminers).
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: June-July, October-April.
Time
of year - adult: There are two generations in the year, the
adults being on the wing in May and again in August. The second
generation overwinters as a larva (UKMoths).
Distribution
in Britain: British Is., including Chester and Hants (UKMoths),
Banff, East Cornwall, East Gloucester, East Ross, Easterness, Forfar,
Kincardine, Kirkudbright, Mid-west York, North Aberdeen, North Ebudes,
South Aberdeen, South Devon, South Lancaster, South-west York, West
Cornwall, West Gloucester (NBN
Gateway distribution map - BRERC,
HBRG, JNCC,
NE,
NESBRC,
SNH and SHWRG),
Northern Ireland and Channel Is. (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; British
leafminers distribution map).
Distribution
elsewhere: Widespread in Europe including Albania, Austria,
Belgium, Bulgaria, Corsica, Croatia, Czech Republic, Danish mainland,
Dodecanese Is., Estonia, Faroe Is., Finland, French mainland, Germany,
Greek mainland, Hungary, Italian mainland, Latvia, Liechtenstein,
Lithuania, Macedonia, Norwegian mainland, Poland, Portuguese mainland,
Romania, Russia - Central, Northwest and South, Sardinia, Sicily,
Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands,
Ukraine and Yugoslavia (Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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