Taxonomic history
[Misspelled as watsoni by Chapman & Capco, 1951 PDF: 77.].Ogata, 1987a PDF: 107 (m.); Onoyama & Yoshimura, 2002 PDF: 45 (m.).Combination in Proceratium: Brown, 1958g PDF: 248.Status as species: Emery, 1909d PDF: 362; Yano, 1910a PDF: 418; Emery, 1911e PDF: 51; Wheeler, 1928d PDF: 98; Azuma, 1950a: 34; Azuma, 1951 PDF: 86; Azuma, 1953 PDF: 1; Brown, 1958g PDF: 248; Collingwood, 1976a PDF: 300; Azuma, 1977a PDF: 112; Onoyama, 1980a PDF: 196; Morisita et al., 1989: 15; Bolton, 1995b: 367; Kim et al., 1998: 151; Onoyama & Yoshimura, 2002 PDF: 43 (redescription); Imai et al., 2003 PDF: 217; Baroni Urbani & de Andrade, 2003a PDF: 215 (redescription); Radchenko, 2005b PDF: 132.
