Smith, 1858a: 153 (diagnosis); Roger, 1863b: 24 (catalogue); Mayr, 1863a: 426, 451 (Leptalea, Pseudomyrma catalogues); Mayr, 1865: 24 (diagnosis); Mayr, 1870a: 407 (Colombia + Panama (=New Grenada) species key); Smith, 1877b: 58 (checklist); Cresson, 1887: 262 (U.S.A. catalogue); Dalla Torre, 1893: 55 (catalogue); Emery, 1921c: 28 (diagnosis, catalogue); Gallardo, 1932a: 44 (Argentina species key); Enzmann, 1944: 62 (all species keys); Creighton, 1950a: 79 (North America species key); Kempf, 1961a: 373 (P. gracilis group, partial key); Kempf, 1972b: 215 (Neotropical catalogue); Alayo, 1974: 9 (Cuba species key); Smith, 1979: 1345 (North America catalogue); Ward, 1985b: 215 (Nearctic species key); Billen, 1986b: 173 (Dufour's gland); Ward, 1989a: 407 (Pseudomyrmex oculatus group, key); Ward, 1989a: 430 (Pseudomyrmex subtilissimus group, key); Ward, 1990: 469 (diagnosis, review of genus); Brandão, 1991: 373 (catalogue); Ward, 1992: 76 (Dominican Amber species key); Ward, 1993: 130 (swollen-thorn Acacia-associated species key); Bolton, 1994: 184 (synoptic classification); Bolton, 1995a: 1052 (census); Bolton, 1995b: 370 (catalogue); Ward, 1999b: 473 (Pseudomyrmex viduus group, and other Tachigali- and Triplaris-associated species key); Mackay & Mackay, 2002: 38 (U.S.A., New Mexico species key); Ward, 2017: 524 (species groups key; ferrugineus and goeldii groups species key); Ward & Branstetter, 2017: 1 (ferrugineus group phylogeny); Cantone, 2017: 277 (brief male diagnosis); Ward, 2019: 1092 (Colombia species key); Ward & Branstetter, 2022: 1 (Pseudomyrmex elongatulus group phylogeny, divergence dating, biogeography, classification), 9 (Pseudomyrmex elongatulus group diagnosis, species key (workers, queens).