Leaf
miner: A large blotch mine is formed from the tip of a leaf (as shown).
The pupa is formed in the disc - as above (top right). The species
has a long feeding period, more than two months (similar to Heterarthrus
nemoratus).
Larva:
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 British
leafminers.
Pupa:
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Adult:
Details unknown.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: August - September (British
leafminers). Completed mines may be found at the end of July
in lower regions of Austria. (British
leafminers).
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland:
Fleet, Hants (British
leafminers).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Czech Republic, Germany, Hungary, ? Italian mainland, Poland, Slovakia
and Ukraine (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.
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