Name Authorship Pages Forms Locality Notes
Pheidole rotundata st. costauriensis Santschi, 1914a 433 s. GHANA
Pheidole rotundata subsp. ilgii Forel, 1907f 139 w.q.m ETHIOPIA
Pheidole rotundiceps Wilson, 2003a 744, figs. s. ECUADOR
Pheidole roushae Wilson, 2003a 344, figs. s.w. MEXICO (Veracruz)
Pheidole rubiceps Wilson, 2003a 345, figs. s.w. VENEZUELA
Pheidole rubra Smith, 1860b 111 s.w. INDONESIA (Bacan)
Pheidole rubrobrunea Dalla Torre, 1892 91
Pheidole rufipilis Forel, 1908 371 s.w. BRAZIL (São Paulo)
Pheidole rufipilis st. industa Santschi, 1939e 316, fig. 3 s.w. URUGUAY
Pheidole rufipilis var. dione Forel, 1913m 225 s.w. ARGENTINA (Jujuy)
Pheidole rufipilis var. divexa Forel, 1908 372 s.w.m. BRAZIL (São Paulo)
Pheidole rufipilis var. laevinota Forel, 1908 371 (in text) w. BRAZIL (São Paulo)
Pheidole rugaticeps Emery, 1877c 375 s.w.q. ERITREA
Pheidole rugaticeps var. arabs Emery, 1881b 535 s.w.q. YEMEN
Pheidole rugiceps Wilson, 2003a 620, figs. s.w. COSTA RICA
Pheidole rugifera Eguchi, 2001b 106, fig. 43 s.w. BORNEO (East Malaysia: Sarawak)
Pheidole rugifrons Pergande, 1896 880 s. MEXICO (Nayarit)
Pheidole rugithorax Eguchi, 2008 84, figs. 23a-g s.w.q. VIETNAM
Pheidole rugocephala Salata & Fisher, 2020a 98, figs. 36A–F, 85U, 88E s.w.q. MADAGASCAR
Pheidole rugofitarata Salata & Fisher, 2020a 128, figs. 47A-C, 85V, 88F s. MADAGASCAR
Pheidole rugosa Smith, 1858a 175 s. SRI LANKA
Pheidole rugulosa Gregg, 1959 26 s.w.q.m. U.S.A. (Arizona)
Pheidole ruida Wilson, 2003a 499, figs. s.w. PANAMA (Barro Colorado)
Pheidole rutilana Wilson, 2003a 746, figs. s.w. BRAZIL (Pará)
Pheidole ryukyuensis Ogata, 1982 193, figs. 1-5 s.w.q. JAPAN
Pheidole sabahna Eguchi, 2000 688, figs. 1-10 s.w.m. BORNEO (East Malaysia: Sabah)
Pheidole sabella Wilson, 2003a 500, figs. s. PERU
Pheidole sabina Wilson, 2003a 747, figs. s.w. MEXICO (Veracruz)
Pheidole sagana Wheeler, 1934g 169 s.w. MEXICO (Veracruz)
Pheidole sagax Wilson, 2003a 227, figs. s.w. COLOMBIA
Pheidole sagei Forel, 1902c 174 (diagnosis in key), 192 s.w. INDIA (Himachal Pradesh)
Pheidole sagittaria Wilson, 2003a 502, figs. s.w. COSTA RICA
Pheidole santschii Forel, 1907e 204 s.w. TUNISIA
Pheidole sarpedon Wilson, 2003a 749, figs. s. ECUADOR
Pheidole sauberi Forel, 1905f 18 s.w. INDONESIA (Java)
Pheidole sauberi subsp. sarawakana Forel, 1911a 45 s.w. BORNEO (East Malaysia: Sarawak)
Pheidole sauteri Wheeler, 1909d 334 s.w. TAIWAN
Pheidole sava Salata & Fisher, 2020b 136, figs. 52A-F, 64J, 67B s.w. MADAGASCAR
Pheidole savegre Longino, 2019 56, pl. 55 s.w. COSTA RICA
Pheidole saxicola Wheeler, 1922 138, fig. 35 s.w. DEMOCRATIC REPUBLIC OF THE CONGO
Pheidole sayapensis Eguchi, 2001b 114, fig. 47 s.w.q.m. BORNEO (East Malaysia: Sabah)
Pheidole scabriuscula Gerstäcker, 1871 356 w. KENYA
Pheidole scabriventris Wilson, 2003a 503, figs. s.w. MEXICO (Veracruz)
Pheidole scalaris Wilson, 2003a 643, figs. s.w. COSTA RICA
Pheidole scapulata Santschi, 1923d 63 w. ARGENTINA (Córdoba)
Pheidole schmitzi Forel, 1911l 455 s.w.q. ISRAEL
Pheidole schoedli Eguchi et al., 2006 32, figs. 1-7 s.w.m. BORNEO (East Malaysia: Sabah)
Pheidole schoutedeni Forel, 1913b 329 s.w. DEMOCRATIC REPUBLIC OF THE CONGO
Pheidole schultzei Forel, 1910e 9, fig. 1 s.w.q.m. BOTSWANA
Pheidole schultzei st. ebangana Santschi, 1937d 222, figs. 7, 8 w. ANGOLA