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Leaf-mine:
Initially in short gallery becoming a blotch in the leaf. Later
in up to three cones at the edge of the leaf (UKMoths).
The mines and cones are the same as for Caloptilia
alchimiella and the moth needs to be bred out to confirm
identity (British
leafminers).
Larva:
Details
unknown.
Pupa:
The pupa forms in a cocoon under a turned over leaf edge (British
leafminers).
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: May - July, September - October (British
leafminers).
Time
of year - adults: A number of generations, any time between
April and November (UKMoths).
Distribution
in Britain: British Is. (Karsholt & van Nieukerken in Fauna
Europaea) including Hants (Fleet) (British
leafminers), Bedford (Studham) (UKMoths),
Hunts, Leicester, Middlesex, North Essex, North Hants, Northampton,
Salop, South Aberdeen, South Devon, South Lancaster, South Lincoln,
South Wilts, Stafford, Surrey, Warwick, West Suffolk and Worcester
(NBN
Gateway distribution map - BRERC,
GiGL, JNCC,
NE,
NESBRC
and SHWRG).
Also
recorded in the Republic of Ireland (Karsholt & van Nieukerken
in Fauna
Europaea).
Distribution
elsewhere: Widespread in Europe including Austria, Balearic
Is., Belgium, Canary Is., Czech Republic, Danish mainland, Estonia,
Finland, French mainland, Germany, Hungary, Italian mainland, Latvia,
Lithuania, Luxembourg, Norwegian mainland, Poland, Romania, Russia
- Central, Sardinia, Sicily, Slovakia, Spanish mainland, Sweden,
Switzerland and The Netherlands (Karsholt & van Nieukerken in
Fauna
Europaea).
Parasitoids:
Unknown.
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