There is actually no name change from Hybosorus illigeri to H.roei. This was just a misunderstanding of the ICZN's decision not to vote for the conservation of H. illigeri. Now we have submitted a new, better documented Case that requests giving precedence to H. illigeri: https://www.researchgate.net/publication/327680800_Case_3768_-_Hybosorus_illigeri_Reiche_1853_Insecta_Coleoptera_proposed_conservation_by_giving_it_precedence_over_Hybosorus_pinguis_Westwood_1845_Hybosorus_roei_Westwood_1845_and_Hybosorus_carolinus_Le
H. illigeri is in prevailing usage and, according to Code Art 23.9.3. (and 82.1), H. illigeri has to be considered as the valid name "Wile the case is under consideration, use of the junior name is to be maintained." The valid name has been and is H. illigeri.