Hi Ian
Not sure whether we fixed this in the meantime or whether it's a R6/iRecord issue but I have the following now which seems ok? :
Acantholyda posticalis Matsumura, 1912
=Acantholyda nemoralis (Linnaeus, 1758) Thomson, 1871 misident.
=Acantholyda pinivora Enslin, 1918
=Acantholyda posticalis Thomson, 1871 misident.
=Tenthredo stellata Christ, 1791
=Itycorsia pinivora Enslin, 1917
=Itycorsia stellata (Christ, 1791) preocc.
=Acantholyda (Itycorsia) posticalis (Matsumura, 1912)
=Itycorsia nemoralis
=Itycorsia posticalis Matsumura
=Keeled Pine Spinner
Chris R.
Chris Raper, Manager of the UK Species Inventory, Angela Marmont Centre for UK Biodiversity,
Natural History Museum, Cromwell Road, London, SW7 5BD. (tel: 020 7942 5894)
also Tachinid Recording Scheme (http://tachinidae.org.uk/)