Thyreus aberrans ( Morawitz, 1875 )

Risch, Stephan, Roberts, Stuart P. M., Smit, Jan, Wood, Thomas J., Michez, Denis & Reverté, Sara, 2023, The new annotated checklist of the wild bees of Europe (Hymenoptera: Anthophila), Zootaxa 5327 (1), pp. 1-147 : 28

Thyreus aberrans ( Morawitz, 1875)

This taxon has been confused, as the location of the type material is uncertain. According to Proshchalykin (pers. comm.) the type could be located in Moscow. The species was described from Uzbekistan as Crocisa aberrans , and its identity is unclear. Lieftinck (1968) notes that in the original description, the scutellum has the posterior margin truncate, with the apex produced into a median lobe. This does not fit any known Thyreus species, and is reminiscent of a Dioxyine bee. Without a type, the concept is unclear, and the name must be treated as a nomen dubium. Records from the European part of Russia must therefore be considered to be unclear due to this taxonomic uncertainty. We therefore remove this taxon from the European checklist.