| 2021-02-15 | New taxonomic reference entry | Yunohamella serpatusa (Guan & Zhu, 1993) | Russia (Urals to Far East), China, Korea | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Ohlertidion ohlerti (Thorell, 1870) | North America, Europe, Russia (Europe to Far East) | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Phylloneta impressa (L. Koch, 1881) | North America, Europe, Turkey, Caucasus, Russia (Europe to Far East), Kazakhstan, Iran, Central Asia, China, India | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Selkirkiella carelmapuensis (Levi, 1963) | Chile | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Paratheridula perniciosa (Keyserling, 1886) | USA to Chile | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Theridula gonygaster (Simon, 1873) | Central and South America, Caribbean. Introduced to Europe, Congo, Madagascar, Seychelles, Georgia, China, Japan | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Grancanaridion grancanariense (Wunderlich, 1987) | Canary Is. | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Montanidion kuantanense Wunderlich, 2011 | Malaysia | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Thwaitesia meruensis (Tullgren, 1910) | Tanzania | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Achaeridion conigerum (Simon, 1914) | Europe, Turkey | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Cabello eugeni Levi, 1964 | Venezuela | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Kochiura aulica (C. L. Koch, 1838) | Cape Verde Is., Canary Is., North Africa, Europe, Turkey, Caucasus, Iran | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Dipoena torva (Thorell, 1875) | Europe, Russia (Europe to South Siberia), Kazakhstan | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Neottiura uncinata (Lucas, 1846) | Mediterranean | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Argyrodella pusilla (Saaristo, 1978) | Seychelles | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Pycnoepisinus kilimandjaroensis Wunderlich, 2008 | Kenya | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Latrodectus mactans (Fabricius, 1775) | Probably native to North America only. Introduced to South America, Asia | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Asagena phalerata (Panzer, 1801) | Europe, Turkey, Caucasus, Russia (Europe to Far East), Kazakhstan, Iran, Central Asia, China, Korea | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Robertus kastoni Eskov, 1987 | Russia (Middle Siberia to Far East), Japan | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Spheropistha miyashitai (Tanikawa, 1998) | Japan | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Guaraniella mahnerti Baert, 1984 | Brazil, Paraguay | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Yoroa clypeoglandularis Baert, 1984 | New Guinea | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Gmogala scarabaeus Keyserling, 1890 | New Guinea, Australia | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Hadrotarsus ornatus Hickman, 1943 | Australia (Tasmania). Introduced to Belgium | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Zercidium helenense Benoit, 1977 | St. Helena | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Tidarren argo Knoflach & van Harten, 2001 | Yemen, Chad | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Echinotheridion levii Ramírez & González, 1999 | Brazil | | Vanuytven, 2021 |
| 2021-02-15 | New taxonomic reference entry | Echinotheridion cartum Levi, 1963 | Brazil, Paraguay, Argentina | | Vanuytven, 2021 |
| 2021-02-15 | Species updated | Argyrodella pusilla (Saaristo, 1978) | Seychelles | Species epithet corrected (Old value) | |
| 2021-02-15 | Species updated | Cataxia cunicularius (Main, 1983) | Australia (Queensland) | Error corrected (Old value) | |
| 2021-02-15 | Reference included | | | Wang et al., 2021b |
| 2021-02-15 | New taxonomic reference entry | Trilacuna wenfeng Tong & Li, 2021 | China | | Wang et al., 2021b |
| 2021-02-15 | New taxonomic reference entry | Trilacuna difeng Tong & Li, 2021 | China | | Wang et al., 2021b |
| 2021-02-15 | New species inserted | Trilacuna wenfeng Tong & Li, 2021 | China | | Wang et al., 2021b |
| 2021-02-15 | New species inserted | Trilacuna difeng Tong & Li, 2021 | China | | Wang et al., 2021b |
| 2021-02-14 | Taxonomic reference added from other taxon | Theridion melanurum Hahn, 1831 | Macaronesia, North Africa, Europe, Turkey, Caucasus, Russia (Europe to Middle Siberia), Middle East. Introduced to USA | (Old value) | |
| 2021-02-14 | Taxonomic reference assigned to new taxon | Theridion mystaceum L. Koch, 1870 | Europe, Turkey, Russia (Europe to South Siberia), China | Taxonomic reference entry assigned to Theridion melanurum Hahn, 1831 | |
| 2021-02-14 | Taxonomic reference added from other taxon | Enoplognatha diodonta Zhu & Zhang, 1992 | Pakistan, India, China | (Old value) | |
| 2021-02-14 | Taxonomic reference assigned to new taxon | Enoplognatha mandibularis (Lucas, 1846) | Europe, North Africa, Turkey, Israel, Russia (Europe) to Central Asia, Iran, China | Taxonomic reference entry assigned to Enoplognatha diodonta Zhu & Zhang, 1992 | |
| 2021-02-14 | Taxonomic reference update | Dipoena erythropus (Simon, 1881) | Europe | (Old value) | |
| 2021-02-14 | New taxonomic reference entry | Steatoda albomaculata (De Geer, 1778) | North America, Europe, North Africa to Israel, Russia (Europe to Far East), Kazakhstan, Iran, Central Asia, China, Korea, Japan | | Vanuytven, 2021 |
| 2021-02-13 | Species distribution update | Pandercetes decipiens Pocock, 1899 | Sri Lanka | (Old value) | Bonnet, 1958 |
| 2021-02-13 | Reference included | | | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-13 | New taxonomic reference entry | Gongylidioides angustus Tu & Li, 2006 | Taiwan (Orchid Is./Lanyu) | | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-13 | New taxonomic reference entry | Zoma taiwanica (Zhang, Zhu & Tso, 2006) | Taiwan | | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-13 | Species transferred to new genus | Zoma taiwanica (Zhang, Zhu & Tso, 2006) | Taiwan | Species transferred from Theridiosoma to Zoma | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-12 | New taxonomic reference entry | Theridiosoma triumphale Zhao & Li, 2012 | China (Hainan), Taiwan (Orchid Is./Lanyu) | | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-12 | Species distribution update | Theridiosoma triumphale Zhao & Li, 2012 | China (Hainan), Taiwan (Orchid Is./Lanyu) | (Old value) | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-12 | First description of female | Theridiosoma triumphale Zhao & Li, 2012 | China (Hainan), Taiwan (Orchid Is./Lanyu) | (Old value) | Ballarin, Yamasaki & Su, 2021 |
| 2021-02-12 | New taxonomic reference entry | Brignoliella tao Ballarin & Yamasaki, 2021 | Taiwan (Orchid Is./Lanyu) | | Ballarin, Yamasaki & Su, 2021 |