miner: Blotch, starting in the centre of the leaf. An ill-defined accumulation
of frass in its first part. The blotch develops with little consideration
of the major veins. Several mines may occur in a leaf, and coalesce
into one large blister (Bladmineerders van Europa).
mine is also illustrated in British
The larvae of sawflies have a head capsule, chewing mouthparts with opposable mandibles, six thoracic legs and abdominal legs (although they may be reduced) (see examples).
The larva has short feet and dark markings on the prosternum and
two spots on the meso- and meta-sternum (British
leafminers). The larva is also illustrated in (Bladmineerders van Europa).
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Outside the mine (British
Hosts in Great Britain & Ireland:
of year - larvae: Late summer (British
of year - adults: Currently unknown.
Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.
in Great Britain & Ireland: Hants (Fleet) (British
leafminers); West Suffolk (NBN
NBN Grid Map:
elsewhere: Widespread in continental Europe including Bulgaria,
Czech Republic, Estonia, Finland, French mainland, Germany, Italian
mainland, Poland, Romania, Russia - Central, Sweden and The Netherlands
(van Achterberg in Fauna Europaea).
recorded in the Nearctic Region (van Achterberg in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: