• Emery, 1890c: 75 (s.q.); Emery, 1896h: 636 (m.); Wheeler & Wheeler, 1954b: 156 (l.)
• Combination in Cryptocerus (Paracryptocerus): Emery, 1915g: 192.
• Combination in Paracryptocerus (Paracryptocerus): Kempf, 1951: 176; Kempf, 1958a: 14.
• Combination in Zacryptocerus: Brandão, 1991: 388.
• Combination in Cephalotes: Baroni Urbani, 1998b: 316; De Andrade & Baroni Urbani, 1999: 172.
• Status as species: Guérin-Méneville, 1844a: 426; Smith, 1853: 220; Smith, 1858a: 190; Smith, 1862d: 410; Mayr, 1863a: 406; Roger, 1863b: 38; Dalla Torre, 1893: 144; Forel, 1895b: 134; Emery, 1896h: 636; Forel, 1905e: 158; Emery, 1906c: 170; Forel, 1906d: 234; Forel, 1907h: 3; Forel, 1908: 354; Forel, 1908a: 69; Forel, 1909a: 257; Forel, 1912f: 201; Bruch, 1914: 218; Wheeler, 1916c: 12; Wheeler, 1916f: 326; Mann, 1916: 450; Crawley, 1916b: 371; Santschi, 1916e: 383; Luederwaldt, 1918: 41; Wheeler, 1918b: 26; Santschi, 1921h: 127; Wheeler, 1922e: 11; Wheeler, 1923a: 4; Emery, 1924f: 307; Wheeler, 1925a: 36; Borgmeier, 1927c: 116; Menozzi, 1935b: 197; Eidmann, 1936b: 83; Wheeler, 1942: 209; Kempf, 1951: 176 (redescription); Kempf, 1958a: 14; Kempf, 1961b: 514; Kempf, 1972b: 179; Brandão, 1991: 388; Bolton, 1995b: 427; De Andrade & Baroni Urbani, 1999: 172 (redescription); Wild, 2007b: 32; Bezděčková et al., 2015: 116; Sandoval-Gómez & Sánchez-Restrepo, 2019: 913; Oliveira et al., 2021: 42 (in list).
• Senior synonym of Cephalotes pusillus brevispinosa: Kempf, 1951: 176; Kempf, 1958a: 14; Kempf, 1972b: 180; Brandão, 1991: 388; Bolton, 1995b: 427; De Andrade & Baroni Urbani, 1999: 172; Oliveira et al., 2021: 42 (in list).
• Senior synonym of Cephalotes caustica: Emery, 1924f: 307; Borgmeier, 1927c: 116; Kempf, 1951: 176; Kempf, 1958a: 14; Kempf, 1972b: 180; Brandão, 1991: 388; Bolton, 1995b: 427; De Andrade & Baroni Urbani, 1999: 172; Oliveira et al., 2021: 42 (in list).
• Senior synonym of Cephalotes elongatus: Roger, 1862c: 297; Mayr, 1863a: 406; Roger, 1863b: 38; Dalla Torre, 1893: 144; Forel, 1895b: 134; Emery, 1924f: 307; Borgmeier, 1927c: 116; Kempf, 1951: 176; Kempf, 1972b: 180; Brandão, 1991: 388; Bolton, 1995b: 427; De Andrade & Baroni Urbani, 1999: 172; Oliveira et al., 2021: 42 (in list).
• Senior synonym of Cephalotes obtusus: Forel, 1911g: 262; Emery, 1924f: 307; Borgmeier, 1927c: 116; Kempf, 1951: 176; Kempf, 1972b: 180; Brandão, 1991: 388; Bolton, 1995b: 427; De Andrade & Baroni Urbani, 1999: 172; Oliveira et al., 2021: 42 (in list).
• Material of the unavailable name Cephalotes pusillus brevispinosa rufescens referred here by Kempf, 1951: 177; Kempf, 1958a: 14; Kempf, 1972b: 180; Brandão, 1991: 388.

Junior synonyms

• Cephalotes caustica (Kollar, 1832)
  Obsolete combination(s): Formica caustica
• Cephalotes elongatus (Klug, 1824)
  Obsolete combination(s): Cryptocerus elongatus
• Cephalotes obtusus (Smith, 1858)
  Obsolete combination(s): Cryptocerus obtusus
• Cephalotes pusillus brevispinosa (Santschi, 1921)
  Obsolete combination(s): Cryptocerus pusillus brevispinosa

Obsolete combinations

• Cryptocerus pusillus

Citations

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