Taxonomic history
Lectotype designation: MacKay, 1996 PDF: 159.Santschi, 1933f PDF: 106 (m.); MacKay, 1996 PDF: 158 (q.).Combination in Acanthostichus (Acanthostichus): Emery, 1911e PDF: 13.Status as species: Emery, 1911e PDF: 13; Forel, 1911e PDF: 288; Santschi, 1916e PDF: 365; Santschi, 1933f PDF: 106; Wheeler, 1934g PDF: 162 (in key); Kusnezov, 1962a PDF: 131; Kempf, 1972b PDF: 10; Brown, 1975 PDF: 42; Zolessi et al., 1988: 3; Bolton, 1995b: 54; MacKay, 1996 PDF: 158 (redescription); Wild, 2007b PDF: 23.Senior synonym of Acanthostichus laticornis obscuridens: Kusnezov, 1962a PDF: 131; Kempf, 1972b PDF: 10; Brown, 1975 PDF: 42; Bolton, 1995b: 54; MacKay, 1996 PDF: 158.Cordillera (MCSN, MHNG, NHMB). Literature records: Cordillera, “Paraguay” (s. loc.) (Forel 1908b, Forel 1911a, MacKay 1996, Santschi 1916).
San Bernardino, Paraguay (Fiebrig). Wiedergefunden.