miner: transparent blotch, quickly turning brown, starting at the leaf
margin. Frass in scattered grains (Bladmineerders van Europa).
must be taken in identifying this miner as the mines of Fenusella
glaucopis can appear similar (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).
Identification is on larval characteristics, in particular the sclerotization
of the anal ring (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.
Pupation outside the mine (Bladmineerders van Europa).
The adult is illustrated in ECatSym - Electronic World Catalog of Symphyta.
Hosts in Great Britain & Ireland:
of year - larvae: May (British
of year - adults: Currently unknown.
Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.
in Great Britain & Ireland: Cambridgeshire (NBN
recorded in the Republic of Ireland (van Achterberg in Fauna Europaea).
NBN Grid Map:
elsewhere: Widespread in continental Europe including Austria,
Balearic Is., Belgium, Czech Republic, Danish mainland, French mainland,
Germany, Hungary, Italian mainland, Luxembourg, Poland, Romania,
Sicily and Switzerland. Also 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: Unknown.