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
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
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Heterarthrus leucomela is treated as a junior synonym of Heterarthus
aceris in Bladmineerders van Europa, but not in ECatSym - Electronic World Catalog of Symphyta.
Hosts in Great Britain & Ireland:
of year - larvae: August - September (British
leafminers). Completed mines may be found at the end of July
in lower regions of Austria. (British
of year - adults: Currently unknown.
in Great Britain & Ireland:
Fleet, Hants (British
NBN Grid Map:
elsewhere: Widespread in continental Europe including Austria,
Czech Republic, Germany, Hungary, ? Italian mainland, Poland, Slovakia
and Ukraine (van Achterberg in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.