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Leaf-mine:
The mine is an underside, strongly creased blister, causing
a distinct pucker in the upperside of the leaf (UKMoths).
Difficult to distinguish between P. cydoniella and P.
blancardella on the basis of mine characteristics - both
form arched tubes on the leaf of M. sylvestris. P. cydoniella
tends to make the larger mine on M. sylvestris and the pupa
is in a cocoon, with frass to one side (British
leafminers).
Larva:
Details unknown.
Pupa:
The
pupa is illustrated in Nederlandse
bladmineerders.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: June - July, September - October (British
leafminers).
Time
of year - adults: The adults, like several related species,
are bivoltine, flying in May and again in August (UKMoths).
Distribution
in Britain: A local species, distributed mainly in the southern
and south-eastern area of England (UKMoths)
including North Hants, Worcester (NBN
Gateway distribution map - NE)
and Northern Ireland (Karsholt & van Nieukerken in Fauna
Europaea). See also British
leafminers distribution.
Also
recorded in the Republic of Ireland (Karsholt & van Nieukerken
in Fauna
Europaea).
Distribution
elsewhere: Widespread in Europe including Austria, Belarus,
Belgium, Bulgaria, Corsica, Czech Republic, Estonia, French mainland,
Germany, Hungary, Italian mainland, Latvia, Republic of Moldova,
Norwegian mainland, Portuguese mainland, Russia - Central and South,
Sardinia, Sicily, Slovakia, Switzerland, The Netherlands and Ukraine.
Also recorded in Near East (Karsholt & van Nieukerken in Fauna
Europaea).
Parasitoids:
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