| 2021-04-06 | New taxonomic reference entry | Linothele soricina (Simon, 1889) | Venezuela | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Diplura riveti (Simon, 1903) | Ecuador | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Masteria cavicola (Simon, 1892) | Philippines | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Fufius ecuadorensis (Simon, 1892) | Ecuador | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Fufius atramentarius Simon, 1888 | Central America | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Fufius albovittatus (Simon, 1891) | Brazil | | Dupérré & Tapia, 2021 |
| 2021-04-06 | Reference included | | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia nidulans (Fabricius, 1787) | Jamaica, West Indies | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia salebrosa (Simon, 1892) | St. Vincent | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia tunapuna Godwin & Bond, 2021 | Trinidad and Tobago | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia neblina Godwin & Bond, 2021 | Venezuela | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia tunapuna Godwin & Bond, 2021 | Trinidad and Tobago | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia neblina Godwin & Bond, 2021 | Venezuela | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia asperula (Simon, 1889) | Venezuela | | Godwin & Bond, 2021 |
| 2021-04-06 | First description of male | Ummidia asperula (Simon, 1889) | Venezuela | (Old value) | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia tibacuy Godwin & Bond, 2021 | Colombia | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia quijichacaca Godwin & Bond, 2021 | Colombia | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia tibacuy Godwin & Bond, 2021 | Colombia | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia quijichacaca Godwin & Bond, 2021 | Colombia | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia erema (Chamberlin, 1925) | Panama | | Godwin & Bond, 2021 |
| 2021-04-06 | First description of male | Ummidia erema (Chamberlin, 1925) | Panama | (Old value) | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia cerrohoya Godwin & Bond, 2021 | Panama | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia quepoa Godwin & Bond, 2021 | Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia varablanca Godwin & Bond, 2021 | Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia cerrohoya Godwin & Bond, 2021 | Panama | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia quepoa Godwin & Bond, 2021 | Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia varablanca Godwin & Bond, 2021 | Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia carlosviquezi Godwin & Bond, 2021 | Nicaragua, Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia rugosa (Karsch, 1880) | Nicaragua, Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | Species distribution update | Ummidia rugosa (Karsch, 1880) | Nicaragua, Costa Rica | (Old value) | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia matagalpa Godwin & Bond, 2021 | Nicaragua | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia yojoa Godwin & Bond, 2021 | Honduras | | Godwin & Bond, 2021 |
| 2021-04-06 | Species synonymy | Ummidia rugosa (Karsch, 1880) | Nicaragua, Costa Rica | Ummidia lanthanus synonymized with Ummidia rugosa | Godwin & Bond, 2021 |
| 2021-04-06 | Species updated | Ummidia lanthanus (Valerio, 1988) | Costa Rica | Status: Synonym (Old value) | Godwin & Bond, 2021 |
| 2021-04-06 | Species transferred to new genus | Ummidia lanthanus (Valerio, 1988) | Costa Rica | Species transferred from Hebestatis to Ummidia | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia carlosviquezi Godwin & Bond, 2021 | Nicaragua, Costa Rica | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia matagalpa Godwin & Bond, 2021 | Nicaragua | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia yojoa Godwin & Bond, 2021 | Honduras | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia zilchi Kraus, 1955 | Mexico, El Salvador, Belize | | Godwin & Bond, 2021 |
| 2021-04-06 | Species distribution update | Ummidia zilchi Kraus, 1955 | Mexico, El Salvador, Belize | (Old value) | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia hondurena Godwin & Bond, 2021 | Honduras, El Salvador | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia frankellerae Godwin & Bond, 2021 | Belize | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia riverai Godwin & Bond, 2021 | Guatemala | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia hondurena Godwin & Bond, 2021 | Honduras, El Salvador | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia frankellerae Godwin & Bond, 2021 | Belize | | Godwin & Bond, 2021 |
| 2021-04-06 | New species inserted | Ummidia riverai Godwin & Bond, 2021 | Guatemala | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia zebrina (F. O. Pickard-Cambridge, 1897) | Mexico, Guatemala | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia brandicarlileae Godwin & Bond, 2021 | Mexico | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia cuicatec Godwin & Bond, 2021 | Mexico | | Godwin & Bond, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia anaya Godwin & Bond, 2021 | Mexico | | Godwin & Bond, 2021 |