Pseudoanthidium (Micranthidium) xanthopygum

Pseudoanthidium (Micranthidium) xanthopygum (Klug, 1832) Anthidium xanthopygum Klug, 1832. – Male, Saudi Arabia or Yemen. Type in Berlin (MFN). Pseudoanthidium (Micranthidium) xanthopygum Klug, 1832. – Pasteels (1969 a) mentioned under Pseudoanthidium (Micranthidium) “ Palaearctic region: only one known species: xanthopygum Klug from Anatolia (or Arabia). ” Notes. The brief note by Pasteels (1969 a) is the only published information indicating that Klug’s xanthopygum should be assigned to Pseudoanthidium. The note that the description is based on material from Anatolia or Arabia is not correct. The underlying specimen was collected by Christian Ehrenberg (MFN, drawer image examined), who never visited Anatolia. The collecting site is given as “ Arabia felix ” (Klug 1832) and refers to SW Saudi Arabia or Yemen (see Ehrenberg’s travel itinerary in Bradley 1968). Elshaier (2022) listed material of this species from the Mediterranean region: 1 ♀; Alexandria Governorate: Borg El Arab; 19 October 1933; coll. Dr. Hodges (PPRI); and 1 ♀; Marsa Matrouh: Salloum; 14 May 1917 (AUCE). These records are likely based on a misidentification. Notably, Anthidium xanthopygum was not included in the list of Salem and El-Azab (2017), although they examined the same collection material.