Synonyms: Amphimallon aestivus; Melolontha aestivus (homotypic); Melolontha bimaculata (heterotypic); Melolontha gracilis (heterotypic); Melolontha inanis (heterotypic); Melolontha maculicollis (heterotypic); Rhizotrogus aestivus castaneipennis; Rhizotrogus aestivus incertus; Rhizotrogus aestivus lividigaster; Rhizotrogus aestivus nudicollis; Rhizotrogus aestivus subvittatus; Rhizotrogus faldermanni (heterotypic); Rhizotrogus faldermannis; Rhizotrogus incertus (heterotypic); Rhizotrogus lividigaster (heterotypic); Rhizotrogus nudicollis (heterotypic); Rhizotrogus subvittatus (heterotypic)