Emery, 1911e: 52, 53 (Probolomyrmex, Escherichia); Wheeler, 1922: 761 (Afrotropical Probolomyrmex, Escherichia); Kempf, 1972b: 210 (Neotropical); Taylor & Brown, 1985: 39 (Australia); Taylor, 1987a: 64 (Australia); Bolton, 1995b: 366; Fisher & Bolton, 2016: 390 (Afrotropical, Malagasy checklist).
Emery, 1911e: 52, 53 (Probolomyrmex, Escherichia diagnoses); Arnold, 1915: 33 (diagnosis); Taylor, 1965d: 352 (diagnosis, all species revision, key); Brown, 1975: 7 (diagnosis, review of genus); Ogata, 1987a: 104 (diagnosis, Japan); Morisita et al., 1989: 13 (Japan species key); Bolton, 1995a: 1052 (census); Agosti, 1995: 432 (Neotropical species key); O'Keefe & Agosti, 1998: 190 (Neotropical species key); Shattuck, 1999: 202 (Australia synopsis); Perrault, 2000: 253 (anatomy); Xu & Zeng, 2000: 214 (China species key); Bolton, 2003: 49, 180 (diagnosis, synopsis); Eguchi et al., 2006: 4 (Oriental species revision, key); Sosa-Calvo & Longino, 2008: 233 (Neotropical species key); Yoshimura & Fisher, 2009: 12 (Malagasy males diagnosis); Shattuck et al., 2012: 41 (Australia & Melanesia species key); Eguchi et al., 2014: 42 (diagnosis, Vietnam synopsis); Hita Garcia & Fisher, 2014b: 67 (Madagascar species key); Baccaro et al., 2015: 348 (genus in Brazil); Fisher & Bolton, 2016: 389 (diagnosis); Oliveira & Feitosa, 2019: 65 (Neotropical species revision, key); Escárraga et al., 2019: 684 (Colombia species key); Varghese, 2024: 4 (diagnosis), 5 (antennal sensilla morphology), 10 (India worker-based species key); Ramamonjisoa et al., 2024: 356 (Malagasy region male diagnosis).
Extant: 30 valid species
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