betuleti (Klug, 1816)
betuleti Klug, 1816 [not 1814]
Blennocampa betuleti (Klug, 1816)
Messa betuleti (Klug, 1816) [not 1814]
Messa (Scolioneura) betuleti (Klug, 1816) [not 1814]
Scolioneura betuleti (Klug, 1816) [not 1814]
Selandria betuleti (Klug, 1816)
Tenthredo (Allantus) betuleti Klug, 1816 [not 1814]
Tenthredo (Blennocampa) betuleti Klug, 1816
Selandria tenuicornis (Klug, 1816). [Unavailable]
Emphytus (Fenusa) nigricans (Klug, 1818). [Unavailable]
Fenusa nigricans (Klug, 1818). [Unavailable]
Fenusella nigricans (Klug, 1818). [Unavailable]
Messa nigricans (Klug, 1818). [Unavailable]
Phaenusa nigricans Klug, 1818. [Unavailable]
Phoenusa nigricans Klug, 1818. [Unavailable]
Scolioneura nigricans (Klug, 1818). [Unavailable]
Tenthredo nigricans Klug, 1818. [Unavailable]
Tenthredo (Emphytus) nigricans Klug, 1818. [Unavailable]
Fenusa betulae Zaddach, 1859 [not 1874]
Phaenusa betulae (Zaddach, 1859)
Phoenusa betulae (Zaddach, 1859)
Scolioneura betulae (Zaddach, 1859).
miner: Large, transparent, in fresh condition pale green blotch that begins
at the leaf margin, without an accumulation of frass. Mine and larva
are undistinguishable from those of S.
vicina, but vicina larvae live from mid May till
mid June, while the larvae of betuleti are found only in
August - October (Bladmineerders van Europa).
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 has three smaller ventral spots and dark legs (British
leafminers). Illustrated in Bladmineerders van Europa.
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
The adult is illustrated in ECatSym - Electronic World Catalog of Symphyta.
Hosts in Great Britain & Ireland:
of year - larvae: Early Summer and Autumn (British
of year - adults: Currently unknown.
Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.
in Great Britain & Ireland: Widespread in Britain including Bedfordshire (VC30),
Berkshire (VC22), Buckinghamshire (VC24), Cumberland (VC70), Derbyshire (VC57), Glamorganshire (VC41), Leicestershire (VC55),
Middlesex (VC21), South Northumberland (VC67), South Lancashire (VC59), South Wiltshire (VC8),
South-east Yorkshire (VC61), Surrey and West Suffolk (VC26) (NBN
Gateway). Mines and larvae on Alnus viridis have recently been recorded from Orkney by Derek Mayes (pers. comm.), which given the time of year are most likely Scolioneura betuleti.
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elsewhere: Widespread in continental Europe including Austria,
Belgium, Bulgaria, Croatia, ? Czech Republic, Danish mainland, ?
Estonia, Finland, French mainland, Germany, Hungary, Italian mainland,
Latvia, Luxembourg, Poland, Russia - Central, Slovakia, Spanish
mainland, Sweden, The Netherlands and Ukraine (van Achterberg in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: