Opinions from A. Nel 2004
- 'Abia belongs to Cimbicidae'
- 'Abia maculosa belongs to Abia'
- 'Abia paurocephala belongs to Abia'
- 'Acantholyda belongs to Pamphiliidae'
- 'Acantholyda grangeoni is a subjective synonym of Acantholyda erythrocephala'
- 'Amasis is an objective synonym of Corynis'
- 'Amasis byrami is recombined as Eopachylosticta byrami'
- 'Argidae belongs to Tenthredinioidea'
- 'Arginae belongs to Argidae'
- 'Atocus belongs to Pamphiliidae'
- 'Atocus defessus belongs to Atocus'
- 'Cenocimbex belongs to Cimbicinae'
- 'Cenocimbex menatensis belongs to Cenocimbex'
- 'Cimbicidae belongs to Tenthredinioidea'
- 'Cimbicinae belongs to Cimbicidae'
- 'Clavellaria is replaced by Cimbex'
- 'Corynis belongs to Cimbicidae'
- 'Diprion belongs to Diprionidae'
- 'Diprionidae belongs to Tenthredinioidea'
- 'Eopachylosticta belongs to Cimbicidae'
- 'Juralyda belongs to Pamphiliidae'
- 'Juralyda udensis belongs to Juralyda'
- 'Lophyrus is a subjective synonym of Diprion'
- 'Manevalia belongs to Argidae'
- 'Manevalia pachyliformis belongs to Manevalia'
- 'Mesolyda rara is recombined as Pesarinia rara'
- 'Mesopamphila is a nomen nudum'
- 'Mioarge belongs to Argidae'
- 'Mioarge azari belongs to Mioarge'
- 'Paleomonoctenus belongs to Diprionidae'
- 'Paleomonoctenus patriciae belongs to Paleomonoctenus'
- 'Pamphilina was reranked as the family Pamphiliidae and belongs to Pamphilioidea'
- 'Pamphilioidea belongs to Symphyta'
- 'Pergidae belongs to Tenthredinioidea'
- 'Pesarinia belongs to Pamphiliidae'
- 'Phenacoperga belongs to Pergidae'
- 'Procimbex is a subjective synonym of Abia'
- 'Procimbex shanwangensis is recombined as Abia shanwangensis'
- 'Pseudocimbex belongs to Cimbicidae'
- 'Pseudocimbex clavatus belongs to Pseudocimbex'
- 'Pteronus is an invalid subgroup of Diprion'
- 'Pteronus prodigus is a nomen dubium'
- 'Schizocerus is a subjective synonym of Sterictiphora'
- 'Schizocerus konowi is recombined as Sterictiphora konowi'
- 'Sinocimbex belongs to Cimbicidae'
- 'Sinocimbex pellucida belongs to Sinocimbex'
- 'Sinocimbex silacea belongs to Sinocimbex'
- 'Tapholyda belongs to Pamphiliidae'
- 'Tenthredines is corrected as Tenthredinidae and belongs to Tenthredinoidea'
- 'Tenthredinoidea [misspelled as Tenthredinioidea] belongs to Symphyta'
- 'Tenthredinoidea is corrected as Tenthredinioidea and belongs to Symphyta'
- 'Tenthredo erythrocephala is recombined as Acantholyda erythrocephala'
- 'Trichiosomites belongs to Cimbicidae'
- 'Trichiosomites obliviosus belongs to Trichiosomites'
- 'Zaraea belongs to Cimbicidae'