Name Authorship Pages Forms Locality Notes
Orectognathus nigriventris Mercovich, 1958 195, fig. w. AUSTRALIA (New South Wales) Date of publication 28.vii.1958.
Orectognathus parvispinus Taylor, 1977 603, figs. 17-19 w.q. AUSTRALIA (Queensland)
Orectognathus perplexus Smith, 1876c 491 w.q. NEW ZEALAND
Orectognathus phyllobates Brown, 1958b 25, fig. 4 w. AUSTRALIA (Queensland)
Orectognathus robustus Taylor, 1977 599, figs. 14-16 w.q. AUSTRALIA (Queensland)
Orectognathus roomi Taylor, 1977 606, figs. 24-27 w. NEW GUINEA (Papua New Guinea)
Orectognathus rostratus Lowery, 1967 137, figs. 1, 2 w.q. AUSTRALIA (New South Wales)
Orectognathus sarasini Emery, 1914f 416 w.m. NEW CALEDONIA
Orectognathus satan Brown, 1953k 102, fig. 3 w.q. AUSTRALIA (Queensland)
Orectognathus sexspinosus Forel, 1915b 39, pl. 2, figs. 1, 2 w.q.m. AUSTRALIA (Queensland)
Orectognathus velutinus Taylor, 1977 610, figs. 37-42 w. NEW GUINEA (Papua New Guinea)
Orectognathus versicolor Donisthorpe, 1940a 46 w. AUSTRALIA (Queensland)
Oreomyrma Wheeler, 1914e 118 (in text) [as subgenus of Myrmica]
Ornatinoda Enzmann, 1944 61 [as "branch" of Pseudomyrma]
Orthocrema Santschi, 1918d 182 [as subgenus of Crematogaster]
Orthocrema esterelana Bernard, 1978b 43, fig. 1 w.q.m. FRANCE
Orthonotomyrmex Ashmead, 1906 31
Orthonotus Ashmead, 1905c 384
Otomyrmex Forel, 1891c 147 [as subgenus of Cataulacus]
†Ovalicapito Hong, 2002 596
†Ovalicapito fushunensis Hong, 2002 596, figs. 519-527 w. CHINA (Liaoning, Fushun Amber, Eocene)
†Ovaligastrula Hong, 2002 599
†Ovaligastrula xilutianensis Hong, 2002 599, figs. 528-537 w. CHINA (Liaoning, Fushun Amber, Eocene)
Overbeckia Viehmeyer, 1916a 151
Overbeckia jambiensis Klimeš, 2022 569, figs. 4, 7 w. INDONESIA (Sumatra)
Overbeckia papuana Klimeš, 2022 570, figs. 5-7 w.q.m. PAPUA NEW GUINEA
Overbeckia subclavata Viehmeyer, 1916a 152, figs. 11, 12 w.q.m. SINGAPORE
Oxyepoecus Santschi, 1926d 6
Oxyepoecus bidentatus Delsinne & Mackay, 2011 2, figs. 2, 3 w. PARAGUAY
Oxyepoecus browni Albuquerque & Brandão, 2004 60, figs. 1a-c w. BRAZIL (Minas Gerais)
Oxyepoecus bruchi Santschi, 1926d 6, figs. A-D q. ARGENTINA (Córdoba)
Oxyepoecus crassinodus Kempf, 1974b 482, figs. 2, 8, 15, 21 w. BRAZIL (Paraná, Santa Catarina)
Oxyepoecus ephippiatus Albuquerque & Brandão, 2004 64, figs. 2a-c w.q. BRAZIL (Amazonas)
Oxyepoecus kempfi Albuquerque & Brandão, 2004 67, figs. 3a-c w. BRAZIL (Piauí)
Oxyepoecus longicephalus Albuquerque & Brandão, 2004 69, figs. 4a-c w. BRAZIL (Rio Grande do Sul)
Oxyepoecus myops Albuquerque & Brandão, 2009 295, figs. 1a-c, 6 w.q. BRAZIL (São Paulo)
Oxyepoecus plaumanni Kempf, 1974b 492, figs. 27-30 w.q. BRAZIL (Rio Grande do Sul)
Oxyepoecus quadratus Albuquerque & Brandão, 2004 73, figs. 6a-c w. ECUADOR
Oxyepoecus regularis Ulysséa & Brandão, 2012 169, figs. 1, 2 w.q. BRAZIL (Bahia)
Oxyepoecus reticulatus Kempf, 1974b 502, figs. 23-26 w.q. BRAZIL (Santa Catarina)
Oxyepoecus rosai Albuquerque & Brandão, 2009 304, figs. 5a-c, 8 w.q. BRAZIL (São Paulo)
Oxyepoecus striatus Mackay & Delsinne, 2011 5, fig. 4 w. PARAGUAY
Oxyepoecus turgidus Kempf, 1969 278, figs. 1-3 w. BRAZIL (São Paulo, Goiás)
Oxyepoecus vivax Kempf, 1974b 508, figs. 31-33, 38, 39 q. BRAZIL (Minas Gerais)
Oxygyne Forel, 1901j 375 [as subgenus of Crematogaster]
†Oxyidris Wilson, 1985a 5
†Oxyidris antillana Wilson, 1985a 5, fig. 3 w. DOMINICAN REPUBLIC (Dominican Amber, Miocene)
Oxyopomyrmex André, 1881c 72
Oxyopomyrmex (Goniomma) blanci r. tuneticus Forel, 1905e 175 w. TUNISIA
Oxyopomyrmex (Goniomma) hispanicus r. tuneticus var. thoracica Santschi, 1907 330 w. TUNISIA