Consideration of the ‘‘complete’’ set of expected two‐particle structures in even mass deformed nuclei together with the ‘‘complete’’ set of transitions, connecting states with defined spin and energy ranges and the precisely determined transition energies from crystal spectrometer studies is sought to reveal as yet unidentified levels and band structures involving unplaced transitions. Further a side‐by‐side study of the odd‐odd and the even‐even structures points to a possible isospin dependence of the residual interaction. Energy levels of166Ho and168Er are used to illustrate these features.