Paraphyly and low levels of genetic divergence in morphologically distinct taxa: revision of the Pseudoanthidium scapulare complex of carder bees (Apoidea: Megachilidae: Anthidiini)
…mitochondrial cytochrome c oxidase subunit I (COI) sequences, combined with a thorough examination of the relevant literature and type material, to delimit species within this complex, assign names to species…