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Leaf-mine:
The larva mines the lower surface of rachis, close to the lesf
tip. The upper surface is left intact, resulting in growth disturbance
that causes the leaf tip to strongly curl downwards. Larva generally
solitary. Pupation within the roll (Nederlandse
bladmineerders). The mine is also illustrated in British
leafminers.
Larva:
The larva is described by de Meijere (1911) and illustrated in Nederlandse
bladmineerders.
Puparium:
Details unknown.
Comments:
Included in Redfern et al. (2002:
397, fig 645) in keys to galls, although the diagnostic features
state 'a white larva mines along main vein'.
Hosts
in Britain:
Hosts
elsewhere:
Time
of year - mines: Unknown.
Time
of year - adults: Unknown.
Distribution
in Britain: Common and widely distributed. Dorset, Hants, Cambridge,
Sussex (Mike Ackland, pers. comm.); Warwick (Robbins,
1991), East Ross, Easterness and South Devon (NBN
Gateway distribution map - DF
and HBRG).
Also
recorded in the Republic of Ireland (Michelsen, 2004 in Fauna
Europaea).
Distribution
elsewhere: Europe including The Netherlands (Nederlandse
bladmineerders)
and Belgium (Gosseries
& Ackland, 1991), Croatia, Czech Republic, Denmark, Finland,
French mainland, Germany, Lithuanaia, Norwegian mainland, Russia
- Central and North, Slovakia, Spanish mainland and Sweden (Michelsen,
2004 in Fauna
Europaea).
Also
recorded East Palaearctic Region (Michelsen, 2004 in Fauna
Europaea).
Parasitoids:
Unknown.
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