miner: A flat blotch at the leaf margin. The leaf is not rolled inwards over the mine. Rarely more than one mine per leaf. Mines mainly in the canopy. Frass grains elliptic, abbout 0.5 mm long (Bladmineerders van Europa).
The 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 is a pale brown, with pale brown head (British
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Adult: Details unkinown.
Hosts in Great Britain & Ireland:
of year - larvae: May
of year - adults: Currently unknown.
Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.
in Great Britain & Ireland: Discovered in the UK in June 2007 by Keith Palmer. More mines were then confirmed in Cheshire by Steve Hind. By 2009 it was found to have a wide distribution in the UK.
NBN Grid Map:
elsewhere: Currently unknown. No map.
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Unknown.