International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS
Oo
Oodescelis Motschulsky 1845, Bulletin de la Société Impériale des Sciences des Naturalistes de Moscou, 18(1): 76 (gender: feminine) (type species, by subsequent designation by Kaszab 1940, Mitteilungen der Münchner Entomologischen Gesellschaft, 30(3): 937: Blaps polita Sturm 1807) (Insecta, Coleoptera). Opinion 1729
Oosternum Sharp 1882, Insecta. Coleoptera. Vol. 1, part 2 in Godman, F.D. & Salvin, O., Biologia Centrali-Americana, vol. 16, p. 112 (gender: neuter) (type species, by monotypy: Oosternum costatum Sharp 1882) (Insecta, Coleoptera). Opinion 1891