Subgenus Pseudoanthidium (Pseudoanthidium)

As key character traits of the type species of nominate Pseudoanthidium largely fit the subgeneric characters of the subgenus Royanthidium Pasteels, 1969, the subgenus Royanthidium is regarded as a junior synonym of Pseudoanthidium (Kasparek 2024a) . Pseudoanthidium melanurum (Klug, 1832) and P. reticulatum (Mocsáry, 1884) are therefore transferred to the nominate subgenus.