Phylogenetic systematics and a revised generic classification of anthidiine bees (Hymenoptera: Megachilidae).

•Phylogeny of worldwide Anthidiini based on a large multi-locus dataset.•Numerous genera and subgenera revealed as paraphyletic.•Revision of Michener’s (2007) suprageneric- and generic-level classification.•Molecular phylogeny imperative for defining taxonomic groups prior to assignment of diagnostic characters for these groups.