Smith, 1858a: 172 (diagnosis); Mayr, 1861: 70 (Europe species key); Roger, 1863b: 27, 30 (catalogue); Mayr, 1863a: 424, 440 (Ischnomyrmex, Pheidole catalogues); Mayr, 1865: 18, 22 (Ischnomyrmex, Pheidole diagnoses); Mayr, 1867a: 92, 96 (Ischnomyrmex, Pheidole diagnoses); Mayr, 1870b: 977, 979 (Australia & New World species keys); Mayr, 1876: 102 (Australia species key); André, 1883b: 382 (Europe & Algeria species key); Mayr, 1879: 674 (Asia species key); Mayr, 1887: 582 (New World species key); Cresson, 1887: 262 (U.S.A., catalogue); Nasonov, 1889: 75 (Russia species key); Dalla Torre, 1893: 88, 98 (Pheidole, Pheidolacanthinus catalogues); Emery, 1895d: 288 (North America species key); Mayr, 1896: 241 (Africa species, partial key); Emery, 1896g: 80 (Pheidole flavens group, key); Forel, 1902c: 165 (India species key); Forel, 1902g: 523 (India & Sri Lanka species key); Bingham, 1903: 223 (India, Sri Lanka & Burma species key); Wheeler, 1908a: 133 (Puerto Rico species key); Arnold, 1920a: 414 (diagnosis, South Africa species key); Emery, 1921c: 78 (diagnosis, subgenera key, catalogue); Emery, 1921c: 81 (Pheidole (Macropheidole) & Pheidole (Pheidolacanthinus) diagnoses, catalogues); Emery, 1921c: 83 (Pheidole (Stegopheidole) diagnosis, catalogue); Mann, 1921: 442 (Fiji Is species key); Emery, 1922c: 110 (Pheidole (Elasmopheidole) diagnosis, catalogue); Emery, 1922c: 111 (Pheidole (Trachypheidole) diagnosis, catalogue); Emery, 1922c: 112 (Pheidole (Scrobopheidole), Pheidole (Decapheidole) & Pheidole (Ceratopheidole) diagnoses, catalogues); Emery, 1922c: 113 (Ischnomyrmex diagnosis, catalogue); Emery, 1922c: 114 (Epipheidole diagnosis, catalogue); Emery, 1922c: 115 (Sympheidole, Parapheidole diagnoses, catalogues); Emery, 1922c: 116 (Anergatides diagnosis, catalogue); Wheeler, 1922: 126, 672 (diagnosis, subgenera key); Wheeler, 1922: 806, 879 (Afrotropical Pheidole, Anergatides catalogues); Wheeler, 1922: 1017, 1021 (Malagasy Pheidole, Parapheidole catalogues); Gallardo, 1932d: 179 (Argentina Elasmopheidole species key); Finzi, 1936: 165 (Egypt species key); Menozzi, 1939a: 298 (Himalaya species key); Cole, 1942: 362 (U.S.A., Utah species key); Buren, 1944a: 285 (U.S.A., Iowa species key); Creighton, 1950a: 163 (North America species key); Creighton, 1950a: 192, 194 (North America Epipheidole, Sympheidole species); Chapman & Capco, 1951: 135, 137 (Asia Ceratopheidole, Conothorax, Ischnomyrmex, Pheidole checklists); Kusnezov, 1952d: 61 (Argentina species key); Smith, 1955d: 302 (Pheidole (Hendecapheidole) species key); Gregg, 1959: 9 (U.S.A. species key); Gregg, 1963: 407 (U.S.A., Colorado species key); Wheeler & Wheeler, 1963: 126 (U.S.A., North Dakota species key); Bernard, 1967a: 149 (diagnosis, Western Europe species key); Gregg, 1969b: 95 (addition to Gregg, 1959 U.S.A. key); Kempf, 1972b: 183 (Neotropical catalogue); Alayo, 1974: 11 (Cuba species key); Smith, 1979: 1365 (North America catalogue); Allred, 1982: 441 (U.S.A., Utah species key); Ogata, 1982: 191 (Japan species key); Collingwood, 1985: 253 (Saudi Arabia species key); Naves, 1985: 54 (U.S.A., Florida species key); Taylor & Brown, 1985: 74 (Australia catalogue); Wheeler & Wheeler, 1986g: 41 (U.S.A., Nevada species key); Taylor, 1987a: 53 (Australia, New Caledonia & New Zealand checklists); Agosti & Collingwood, 1987b: 271 (Balkans species key); Hölldobler & Wilson, 1990: 15 (synoptic classification); Kupyanskaya, 1990a: 123 (Far Eastern Russia species key); Brandão, 1991: 368 (Neotropical catalogue); Morisita et al., 1992: 22 (Japan species key); Bolton, 1994: 106 (synoptic classification); Kupyanskaya, 1995: 345 (Far Eastern Russia species key); Bolton, 1995a: 1051 (census); Bolton, 1995b: 316 (catalogue); Wu & Wang, 1995a: 99 (China species key); Collingwood & Agosti, 1996: 322 (Saudi Arabia species key); Park & Kim, 2000a: 109 (Korea species key); Shattuck, 1999: 152 (Australia synopsis); Eguchi, 1999: 103 (Borneo Pheidole longipes group, key); Ward, 2000a: 96 (U.S.A. Pheidole hyatti complex, key); Zhou, 2001a: 121 (China, Guangxi species key); Eguchi, 2001b: 10 (Borneo species key); Mackay & Mackay, 2002: 149 (U.S.A., New Mexico species key); Wilson, 2003a: 27 (New World, all species revision, keys); Sarnat, 2008: 8 (Fiji Is Pheidole roosevelti group, key); Eguchi, 2008: 8 (North Vietnam species key); Terayama, 2009: 171 (Taiwan species key); Heterick, 2009: 169 (south-western Australia species key); Sarnat & Moreau, 2011: 114 (Pheidole roosevelti group phylogeny and radiation); Fischer et al., 2012: 9 (Afrotropical Pheidole pulchella group key); Sarnat & Economo, 2012: 93 (Fiji species key); Economo et al., 2015: 1 (global phylogeny);Sarnat et al., 2015: 14 (Introduced species); Sarnat et al., 2016: 1 (cervicornis species group); Fischer et al., 2016: 1 (knowlesi species group); Cantone, 2017: 226 (brief male diagnosis); Salata & Fisher, 2020a: 9 (key to species groups from Madagascar); Fernández & Serna, 2019: 868 (Colombia fauna); Serna et al., 2019: 919 (Colombia species, diagrammatic identifications); Salata & Fisher, 2020b: 8 (key to sikorae group); Salata & Fisher, 2020c: 7 (key to bessonii group); Casadei-Ferreira et al., 2020: 5 (updated key to species from Brazilian grasslands); Klunk et al., 2021: 1 (mandible functional morphology); Zhong, 2021: 2 (key to species (Fujian, China major workers); Salata & Fisher, 2022: 1 (revision of Malagasy Pheidole megacephala species-group), 6 (Malagasy Pheidole megacephala species-group synopsis, diagnosis), 8 (key to Malagasy Pheidole megacephala species-group); Gómez et al., 2022: 133 (synoptic list of Pheidole pulchella species group), 145 (Pheidole pulchella species group key (minor workers), 147 (Pheidole pulchella species group key (major workers).