miner: A large, practically full depth blotch without an apparent initial
corridor, starting in the centre of a leaf. The full grown larva
makes a circular cocoon, attached to upper epidermis. Before that
a circular cut has been made in the upper epidermis. The completed
cocoon falls out of the mine together with the disk of upper epidermis
(Bladmineerders van Europa).
The mine is also illustrated in British Leafminers.
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 is illustrated in Bladmineerders van Europa.
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Hosts in Great Britain & Ireland:
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.
in Great Britain & Ireland: Currently unknown.
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elsewhere: Continental Europe including Austria, Germany, Hungary
and Switzerland (van Achterberg in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Unknown.