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Leaf-mine:
Early mine a squarish or triangular blotch with brownish lower
epidermis. Thereafter two or three successive folds formed by folding
the leaf margin upwards (British
leafminers).
Larva:
The larva is illustrated in Nederlandse
bladmoneerders.
Pupa:
In folded leaf-edge, usually on ground (British
leafminers).
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: July, September (British
leafminers).
Time
of year - adults: Two generations, firstly in May and again
in August (UKMoths).
Distribution
in Britain: Relatively common wherever its foodplant is found
(UKMoths)
including East Kent, East Perth, Hereford, Hunts, Mid Perth, North
Aberdeen, North Devon, North Ebudes, North Essex, North Hants, South
Aberdeen, South Devon, South Lancaster, South Wilts, West Kent,
Worcester (NBN
Gateway distribution map - BRERC,
DBRC,
GiGL, HBRG,
NE,
NESBRC,
SNH and SHWRG)
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, Belarus,
Belgium, Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Hungary, Italian mainland, Latvia,
Lithuania, Luxembourg, Republic of Moldova, Norwegian mainland,
Poland, Romania, Russia - Central, East, Northwest and South, Slovakia,
Slovenia, Sweden, Switzerland, The Netherlands, Ukraine. Also recorded
in Near East (Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
Unknown.
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