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Leaf-mine:
The larvae mine the leaves of hawthorn, creating a gallery which
begins narrowly with black linear frass. The mine then widens, and
the frass is laid in distinct arcs, finally becoming irregular and
central near the end (UKMoths).
Larva:
The
larva is green (British
leafminers).
Pupa:
Details unknown.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: End June - early August (British
leafminers).
Time
of year - adults: Single generation. The adults are on the wing
in May and June (UKMoths).
Distribution
in Britain: Common throughout the British Isles (UKMoths)
including Banff, Cambridge, East Kent, East Perth, Fife, Forfar,
Hunts, Kincardine, Lanark, Leicester, Mid Perth, Mid-west York,
Middlesex, North Aberdeen, North Devon, North Hants, North-west
York, South Aberdeen, South Essex, South Hants, South Lancaster,
Stirling, Surrey, West Kent and West Suffolk (NBN
Gateway distribution map - BRERC,
GiGL, 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, Croatia,
Czech Republic, Danish mainland, Estonia, Finland, French mainland,
Germany, ? Greek mainland, Hungary, Italian mainland, Lithuania,
Macedonia, Poland, Portuguese mainland, Romania, Slovakia, Slovenia,
Spanish mainland, Sweden, Switzerland, The Netherlands.
Also
recorded in East Palaearctic and Near East (Karsholt & van Nieukerken
in Fauna
Europaea).
Parasitoids:
Unknown.
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