Some corrections and remarks regarding the nomenclature of Neotropical Athyreini, Passalini, Phanaeini, Rutelini, Cyclocephalini, Dynastini and Oryctini (Coleoptera: Scarabaeoidea)

A number of nomenclatural issues regarding Neotropical Scarabaeoidea are addressed. Athyreus soesilae Makhan, 2008 is synonymized with Neoathyreus (Neoathyreus) excavatus (Laporte, 1840) (Geotrupidae: Bolboceratinae: Athyreini). Scalmus Zang, 1905 is replaced with its senior synonym Neleuops Kuwert, 1891, nec Neleurops Kuwert, 1891, and the four species it presently contains are thus transferred to Neleuops (Passalidae: Passalinae: Passalini). The spelling of the name Oxysternon oberthueri Olsoufieff, 1924, a junior synonym of Oxysternon (Oxysternon) conspicillatum (Weber, 1801), is fixed (Scarabaeidae: Scarabaeinae: Phanaeini). The year of description of Oxysternon (Oxysternon) festivum (Linnaeus, 1758) is corrected, its existing lectotype invalidated, and a new lectotype designated (Scarabaeidae: Scarabaeinae: Phanaeini). The correct spelling of Phanaeus (Phanaeus) prasinus trinidadens Arnaud, 2001 and Phanaeus (Phanaeus) prasinus joliyi Arnaud, 2001 is discussed (Scarabaeidae: Scarabaeinae: Phanaeini). The seniority of Chlorota aulica Burmeister, 1844 over Chlorota metallica Burmeister, 1844 is restored (Scarabaeidae: Rutelinae: Rutelini). The year of description of Rutela lineola (Linnaeus, 1758) is corrected and a lectotype is designated (Scarabaeidae: Rutelinae: Rutelini). Cyclocephala aulustjaorum nomen novum is proposed as a replacement name for the preoccupied name Cyclocephala brevis Höhne, 1923 (Scarabaeidae: Dynastinae: Cyclocephalini). The spelling of the generic name Harposceles Burmeister, 1847 is fixed (Scarabaeidae: Dynastinae: Cyclocephalini). The incorrect subsequent spelling Stenocrates haackae Ratcliffe, 1977 is preserved (Scarabaeidae: Dynastinae: Cyclocephalini). The name Scarabaeus simson Linnaeus, 1767 is invalidated as a synonym of Megasoma actaeon (Linnaeus, 1758) (Scarabaeidae: Dynastinae: Dynastini). The spelling of the generic name Coelosis Hope, 1837 is found to be correct (Scarabaeidae: Dynastinae: Oryctini). The validity of Steyskal’s emendation of the name Megaceropsis quadridentata Dechambre, 1976 is confirmed (Scarabaeidae: Dynastinae: Oryctini). The lectotype of Podischnus agenor (Olivier, 1789) is invalidated and a new lectotype is designated (Scarabaeidae: Dynastinae: Oryctini)