| 2021-09-09 | New taxonomic reference entry | Otacilia shanxi Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New taxonomic reference entry | Otacilia arcuata Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New taxonomic reference entry | Otacilia dentigera Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Otacilia shanxi Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Otacilia arcuata Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Otacilia dentigera Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New taxonomic reference entry | Otacilia wuli Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New taxonomic reference entry | Otacilia lubrica Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New taxonomic reference entry | Otacilia spiralis Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New taxonomic reference entry | Grandilithus ensifer (Mu & Zhang, 2021) | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Otacilia wuli Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Otacilia lubrica Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Otacilia spiralis Mu & Zhang, 2021 | China | | Mu & Zhang, 2021 |
| 2021-09-09 | New species inserted | Grandilithus ensifer (Mu & Zhang, 2021) | China | | Mu & Zhang, 2021 |
| 2021-09-09 | Reference included | | | Portuguez, 2021 |
| 2021-09-09 | New taxonomic reference entry | Kalcerrytus yacuruna Portuguez, 2021 | Peru | | Portuguez, 2021 |
| 2021-09-09 | New taxonomic reference entry | Kalcerrytus mapinguari Portuguez, 2021 | Peru | | Portuguez, 2021 |
| 2021-09-09 | New species inserted | Kalcerrytus yacuruna Portuguez, 2021 | Peru | | Portuguez, 2021 |
| 2021-09-09 | New species inserted | Kalcerrytus mapinguari Portuguez, 2021 | Peru | | Portuguez, 2021 |
| 2021-09-07 | Reference included | | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Brachytheliscus bicolor Pocock, 1897 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species transferred to new genus | Brachytheliscus bicolor Pocock, 1897 | South Africa | Species transferred from Hermacha to Brachytheliscus | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New genus inserted | Brachytheliscus Pocock, 1902 | | Pocock, 1902b |
| 2021-09-07 | New taxonomic reference entry | Hermacha septemtrionalis Ríos-Tamayo, Engelbrecht & Goloboff, 2021 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New species inserted | Hermacha septemtrionalis Ríos-Tamayo, Engelbrecht & Goloboff, 2021 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Ekapa nigrum (Tucker, 1917) | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Ekapa curvipes (Purcell, 1902) | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermachola lyleae Ríos-Tamayo, Engelbrecht & Goloboff, 2021 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New species inserted | Hermachola lyleae Ríos-Tamayo, Engelbrecht & Goloboff, 2021 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermachola crudeni (Hewitt, 1913) | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species synonymy | Hermachola crudeni (Hewitt, 1913) | South Africa | Hermachola grahami synonymized with Hermachola crudeni | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species updated | Hermachola grahami (Hewitt, 1915) | South Africa | Status: Synonym (Old value) | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species transferred to new genus | Hermachola grahami (Hewitt, 1915) | South Africa | Species transferred from Hermacha to Hermachola | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species transferred to new genus | Hermachola crudeni (Hewitt, 1913) | South Africa | Species transferred from Hermacha to Hermachola | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermachola capensis (Ausserer, 1871) | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species transferred to new genus | Hermachola capensis (Ausserer, 1871) | South Africa | Species transferred from Hermacha to Hermachola | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Genus updated | Hermachola Hewitt, 1915 | Removed synonymy (Old value) | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha maraisae Ríos-Tamayo, Engelbrecht & Goloboff, 2021 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New species inserted | Hermacha maraisae Ríos-Tamayo, Engelbrecht & Goloboff, 2021 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha lanata Purcell, 1902 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | First description of female | Hermacha lanata Purcell, 1902 | South Africa | (Old value) | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha evanescens Purcell, 1903 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | First description of male | Hermacha evanescens Purcell, 1903 | South Africa | (Old value) | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha caudata Simon, 1889 | Mozambique | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species synonymy | Hermacha brevicauda Purcell, 1903 | South Africa | Hermacha capensis synonymized with Hermacha brevicauda | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species updated | Hermacha capensis (Zonstein, 2016) | South Africa | Status: Synonym (Old value) | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | Species transferred to new genus | Hermacha capensis (Zonstein, 2016) | South Africa | Species transferred from Pionothele to Hermacha | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha brevicauda Purcell, 1903 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha tuckeri Raven, 1985 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |
| 2021-09-07 | New taxonomic reference entry | Hermacha sericea Purcell, 1902 | South Africa | | Ríos-Tamayo, Engelbrecht & Goloboff, 2021 |