| 2021-04-07 | New species inserted | Textrix litoralis (Wunderlich, 2021) | Portugal | | Wunderlich, 2021 |
| 2021-04-07 | New taxonomic reference entry | Theridion genistae Simon, 1873 | Mediterranean | | Wunderlich, 2021 |
| 2021-04-07 | New taxonomic reference entry | Lasaeola testaceomarginata Simon, 1881 | Mediterranean | | Wunderlich, 2021 |
| 2021-04-07 | New taxonomic reference entry | Anatolidion gentile (Simon, 1881) | Morocco, Algeria, Portugal, Spain, France, Italy, North Macedonia, Greece, Turkey, Ukraine | | Wunderlich, 2021 |
| 2021-04-07 | New taxonomic reference entry | Cepheia longiseta (Simon, 1881) | Southern Europe | | Wunderlich, 2021 |
| 2021-04-07 | New taxonomic reference entry | Diplocephalus toscanaensis Wunderlich, 2011 | Portugal, Italy | | Wunderlich, 2021 |
| 2021-04-07 | Species distribution update | Diplocephalus toscanaensis Wunderlich, 2011 | Portugal, Italy | (Old value) | Wunderlich, 2021 |
| 2021-04-07 | First description of female | Diplocephalus toscanaensis Wunderlich, 2011 | Portugal, Italy | (Old value) | Wunderlich, 2021 |
| 2021-04-07 | New taxonomic reference entry | Canariphantes corona (Wunderlich, 2021) | Portugal | | Wunderlich, 2021 |
| 2021-04-07 | New species inserted | Canariphantes corona (Wunderlich, 2021) | Portugal | | Wunderlich, 2021 |
| 2021-04-07 | New genus inserted | Algarveneta Wunderlich, 2021 | | Wunderlich, 2021 |
| 2021-04-07 | Taxonomic reference update | Coleosoma blandum O. Pickard-Cambridge, 1882 | Seychelles, India, India, Sri Lanka, Bangladesh, Myanmar, Thailand, Philippines, China, Japan. Introduced to Seychelles, Hawaii | (Old value) | |
| 2021-04-06 | Reference included | | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Thalerommata caudicula (Simon, 1886) | Argentina | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Cyclosternum gaujoni Simon, 1889 | Ecuador | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Idiops opifex (Simon, 1889) | French Guiana | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Idiops fulvipes Simon, 1889 | Venezuela | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Idiops argus Simon, 1889 | Venezuela | | Dupérré & Tapia, 2021 |
| 2021-04-06 | New taxonomic reference entry | Ummidia asperula (Simon, 1889) | Venezuela | | Dupérré & Tapia, 2021 |
| 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 |