Name Authorship Pages Forms Locality Notes
Pheidole nodus st. rhombinoda var. gratiosa Santschi, 1937h 371 s.w. INDIA (Karnataka)
Pheidole nodus var. flebilis Santschi, 1937h 370 s.w. TAIWAN
Pheidole nodus var. praevexata Wheeler, 1929g 3 (in text) s.w. JAPAN
Pheidole noggii var. zoceana [sic] Santschi, 1925f 83 s.w. CHINA (Shanghai) Note: Pheidole noggii is a misspelling of Pheidole nodgii.
Pheidole notabilis Smith, 1860b 111, pl. 1, figs. 3, 4 s.w. INDONESIA (Bacan)
Pheidole nubicola Wilson, 2003a 329, figs. s.w. MEXICO (Tamaulipas)
Pheidole nuculiceps Wheeler, 1908h 473 s.w. U.S.A. (Texas)
Pheidole oaxacana Wilson, 2003a 476, figs. s.w. MEXICO (Oaxaca)
Pheidole obapara Casadei-Ferreira et al., 2020 11, figs. 7, 11 s.w. BRAZIL (Paraná)
Pheidole obrima Wilson, 2003a 729, figs. s.w. VENEZUELA
Pheidole obturaculum Longino, 2019 51, plate 33 s.w. MEXICO (Veracruz)
Pheidole obtusopilosa Mayr, 1887 586, 602 (diagnoses in keys) s.w. URUGUAY
Pheidole obtusopilosa st. heterothrix Santschi, 1923d 59 s.w. ARGENTINA (Entre Ríos)
Pheidole obtusospinosa Pergande, 1896 889 s. MEXICO (Nayarit)
Pheidole occipitalis André, 1890 321 s.w. SIERRA LEONE
Pheidole occipitalis st. neutralis Santschi, 1914d 336 s.w. GUINEA
Pheidole occipitalis var. adami Santschi, 1939f 161 w. GUINEA
Pheidole oceanica Mayr, 1866a 510 s.w.q.m. FIJI (Ovalau)
Pheidole oceanica subsp. nigriscapa var. tahitiana Santschi, 1928 516 w. FRENCH POLYNESIA
Pheidole oceanica var. boraborensis Wheeler, 1932g 15 s.w. FRENCH POLYNESIA
Pheidole oceanica var. pattesoni Mann, 1919 317 s.w. SOLOMON IS (Santa Cruz)
Pheidole ocellata Zhou, 2001a 134, 236, figs. 264-266 s.w. CHINA (Guangxi)
Pheidole ocellifera Smith, 1858a 174 w. MYANMAR, CHINA (Hong Kong)
Pheidole ochracea Eguchi, 2008 63, figs. 17a-h s.w. VIETNAM
Pheidole ocypodea Salata & Fisher, 2020a 82, figs. 32A-F, 85O, 87T s.w. MADAGASCAR
Pheidole ogloblini Kusnezov, 1952d 85 s.w.q. ARGENTINA (Misiones)
Pheidole oliveirai Wilson, 2003a 332, figs. s.w. COLOMBIA
Pheidole olsoni Wilson, 2003a 478, figs. s. COSTA RICA
Pheidole onifera Mann, 1921 427, fig. 12 s.w. FIJI (Viti Levu)
Pheidole onyx Wilson, 2003a 479, figs. s.w. COSTA RICA
Pheidole opaca Mayr, 1862 749 s.w. BRAZIL
Pheidole opaca subsp. apterostigmoides Weber, 1943b 71, fig. 3 s.w. TRINIDAD
Pheidole opaca subsp. sarrita Forel, 1908c 59 w. COSTA RICA
Pheidole opaca var. incrustata Forel, 1908c 59 w. COSTA RICA
Pheidole opaciventris Mayr, 1876 105 s.w. AUSTRALIA (Queensland)
Pheidole optiva Forel, 1901d 132 s.w. MEXICO (Morelos)
Pheidole orbica Forel, 1893j 415 s.w.q.m. ST VINCENT AND THE GRENADINES (St Vincent)
Pheidole oregonica Emery, 1895d 291 s.w. U.S.A. (Oregon)
Pheidole orophila Eguchi, 2001b 85, figs. 32, 62 s.w. WEST MALAYSIA
Pheidole oswaldi Forel, 1891c 173 s.w.q.m. MADAGASCAR
Pheidole oswaldi r. bessonii Forel, 1891c 176, pl. 5, fig. 3 w. MADAGASCAR
Pheidole oswaldi r. decollata Forel, 1892l 527 s.w. MADAGASCAR
Pheidole otisi Wilson, 2003a 481, figs. s.w. COSTA RICA
Pheidole ovalinoda Salata & Fisher, 2020c 47, figs. 21A-F, 27M, 28M s.w. MADAGASCAR
Pheidole oxyops Forel, 1908 377 s.q. PARAGUAY
Pheidole oxyops r. jujuyensis Forel, 1913m 229 w. ARGENTINA (Jujuy)
Pheidole oxyops subsp. regia Forel, 1908 378 s.w. BRAZIL (São Paulo)
Pheidole pabulator Smith, 1860b 112 s.w. INDONESIA (Bacan)
Pheidole palenquensis Wilson, 2003a 482, figs. s.w. ECUADOR
Pheidole pallidula selenia Özdikmen, 2010b 805