N.B.: transferred from the Pycnothelidae to Nemesiidae (Pycnothenidae) by Raven, 1985a: 79 and back by revalidation of the family by Opatova et al., 2020: 701; considered a senior synonym of Agersborgia Strand, 1936: 167 [urn:lsid:nmbe.ch:spidergen:05004] (type Heteromma anomala Mello-Leitão, 1935 = Pycnothele perdita Chamberlin, 1917) (transferred from the Barychelidae to the Pycnothelidae) by Lucas & Bücherl, 1973: 241, Agersborgia is a replacement name for Heteromma Mello-Leitão, 1935c: 356 [urn:lsid:nmbe.ch:spidergen:05009], preoccupied in fossil Araneae by Menge, 1856; considered a senior synonym of Androthelopsis Mello-Leitão, 1934c: 401 [urn:lsid:nmbe.ch:spidergen:05005] (type A. singularis Mello-Leitão, 1934) (transferred from the Barychelidae to the Pycnothelidae by Lucas & Bücherl, 1973: 239) by Pérez-Miles & Capocasale, 1989: 288, Androthelopsis considered a senior synonym of Pycnothelopsis Schiapelli & Gerschman, 1942: 319 [urn:lsid:nmbe.ch:spidergen:05014] (type P. modesta Schiapelli & Gerschman, 1942) by Raven, 1985a: 101; considered a senior synonym of Neostothis Vellard, 1925: 79 [urn:lsid:nmbe.ch:spidergen:00126] (type N. gigas Vellard, 1925) by Montes de Oca et al., 2022: 11; Neostothis was removed from the synonymy of Chaco Tullgren, 1905 by Goloboff, 1995: 169; considered a senior synonym of Bayana Pérez-Miles, Costa & Montes de Oca, 2014: 1938 [urn:lsid:nmbe.ch:spidergen:04216] (type B. labordai Pérez-Miles, Costa & Montes de Oca, 2014) by Montes de Oca et al., 2022: 11.