"Rh. mannerheimi Motschulsky 1845, syn. nov., Rh. komarovi Lukjanovich 1939, syn. nov. and Rh. amnoni Lopatin et Chikatunov 2000 syn. nov. are synonymous with Rh. gebleri."

Review of the genus Rhaebus Fischer von Waldheim, 1824 (Coleoptera: Chrysomelidae: Bruchinae)
https://www.biotaxa.org/em/article/view/76615