The Diurideae are the most diverse tribe in the Australian orchid flora, but the genera mostly remain unrevised and some poorly circumscribed. Even the membership of the tribe itself was a matter of controversy until recently. The last two decades has seen a dramatic increase in alpha taxonomic work on the Diurideae, with many new species described in a piecemeal fashion. Surveys of morphological and anatomical characters for potential use in cladistic analysis have found disappointingly low levels of congruence. Pollination biology of the Diurideae is unusual, even by orchid standards.
All species are either insect-pollinated or autogamous but few genera produce nectar.
Most appear to be pollinated by 'deceipt', the most common syndrome being sexual deception.