| 2021-02-23 | New taxonomic reference entry | Argiope cameloides Zhu & Song, 1994 | China | | Wang, Gan & Mi, 2021 |
| 2021-02-23 | First description of male | Argiope cameloides Zhu & Song, 1994 | China | (Old value) | Wang, Gan & Mi, 2021 |
| 2021-02-23 | New species inserted | Belisana xiaolongha Zhu & Li, 2021 | China | | Zhu & Li, 2021a |
| 2021-02-23 | New species inserted | Belisana bubeng Zhu & Li, 2021 | China | | Zhu & Li, 2021a |
| 2021-02-22 | Species distribution update | Syedra apetlonensis Wunderlich, 1992 | Austria, Slovakia, Serbia, Russia (Europe) | (Old value) | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Species distribution update | Harpactea samuili Lazarov, 2006 | North Macedonia, Bulgaria, Greece | (Old value) | Stefanovska et al., 2008 |
| 2021-02-22 | Reference included | | | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Pritha vestita (Simon, 1873) | France (Corsica), Bulgaria | | Naumova & Deltshev, 2021 |
| 2021-02-22 | Species distribution update | Pritha vestita (Simon, 1873) | France (Corsica), Bulgaria | (Old value) | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Pritha parva Legittimo, Simeon, Di Pompeo & Kulczycki, 2017 | France, Italy, Switzerland, Bulgaria, Greece | | Naumova & Deltshev, 2021 |
| 2021-02-22 | Species distribution update | Pritha parva Legittimo, Simeon, Di Pompeo & Kulczycki, 2017 | France, Italy, Switzerland, Bulgaria, Greece | (Old value) | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Loxosceles rufescens (Dufour, 1820) | Southern Europe, northern Africa to Iran, Afghanistan. Introduced to USA, Mexico, Peru, Macaronesia, South Africa, India, China, Japan, Korea, Laos, Thailand, Philippines, Australia, Hawaii | | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Harpactea samuili Lazarov, 2006 | North Macedonia, Bulgaria, Greece | | Naumova & Deltshev, 2021 |
| 2021-02-22 | Species distribution update | Harpactea samuili Lazarov, 2006 | North Macedonia, Bulgaria, Greece | (Old value) | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Filistata insidiatrix (Forsskål, 1775) | Mediterranean to Turkmenistan. Introduced to Azores, Cape Verde, Angola, Yemen (Socotra), Venezuela | | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Eresus moravicus Řezáč, 2008 | Austria, Hungary, Czechia, Slovakia, Romania, Albania, Bulgaria, Greece, Ukraine | | Naumova & Deltshev, 2021 |
| 2021-02-22 | Species distribution update | Eresus moravicus Řezáč, 2008 | Austria, Hungary, Czechia, Slovakia, Romania, Albania, Bulgaria, Greece, Ukraine | (Old value) | Naumova & Deltshev, 2021 |
| 2021-02-22 | New taxonomic reference entry | Altella lucida (Simon, 1874) | Europe, Turkey | | Naumova & Deltshev, 2021 |
| 2021-02-22 | Species distribution update | Clubiona rosserae Locket, 1953 | Britain, France, Netherlands, Poland, Slovakia, Hungary, Romania, Serbia | (Old value) | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Reference included | | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Titanoeca spominima (Taczanowski, 1866) | Sweden, Finland, Central Europe, Serbia, Albania, Ukraine, Russia (Europe) | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Species distribution update | Titanoeca spominima (Taczanowski, 1866) | Sweden, Finland, Central Europe, Serbia, Albania, Ukraine, Russia (Europe) | (Old value) | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Theridion uhligi Martin, 1974 | France to Russia (Europe) | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Tallusia vindobonensis (Kulczyński, 1898) | Italy, Switzerland to Ukraine and Greece, Turkey | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Sintula spiniger (Balogh, 1935) | Austria to Greece and Russia (Europe) | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Glyphesis taoplesius Wunderlich, 1969 | Denmark, Germany, Poland, Slovakia, Hungary, Serbia, Russia (Urals) | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Species distribution update | Glyphesis taoplesius Wunderlich, 1969 | Denmark, Germany, Poland, Slovakia, Hungary, Serbia, Russia (Urals) | (Old value) | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Canariphantes nanus (Kulczyński, 1898) | Central to eastern Europe, Turkey, Israel | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Pardosa maisa Hippa & Mannila, 1982 | Finland, Estonia, Central and eastern Europe, Russia (Urals, West Siberia) | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Haplodrassus moderatus (Kulczyński, 1897) | Europe, Russia (Europe to Far East), China | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Haplodrassus bohemicus Miller & Buchar, 1977 | Czechia, Slovakia, Austria, Hungary, Serbia, North Macedonia, Bulgaria, Greece, Ukraine, Russia (Europe, Caucasus) | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Species distribution update | Haplodrassus bohemicus Miller & Buchar, 1977 | Czechia, Slovakia, Austria, Hungary, Serbia, North Macedonia, Bulgaria, Greece, Ukraine, Russia (Europe, Caucasus) | (Old value) | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Gnaphosa mongolica Simon, 1895 | Slovakia, Hungary, Serbia, Romania, Ukraine, Turkey, Russia (Europe) to China | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Species distribution update | Gnaphosa mongolica Simon, 1895 | Slovakia, Hungary, Serbia, Romania, Ukraine, Turkey, Russia (Europe) to China | (Old value) | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | New taxonomic reference entry | Argenna patula (Simon, 1874) | Europe, Caucasus, Russia (Europe to South Siberia), Kazakhstan, Kyrgyzstan, China, Iran? | | Grbić, Hänggi & Krnjajić, 2021 |
| 2021-02-22 | Species distribution update | Tetragnatha tenera Thorell, 1881 | Sri Lanka, Australia (Queensland) | (Old value) | |
| 2021-02-22 | Species distribution update | Tetragnatha chauliodus (Thorell, 1890) | China, Japan, Myanmar to Papua New Guinea, Brazil (introduced?) | (Old value) | |
| 2021-02-22 | Reference included | | | Bertani & Almeida, 2021 |
| 2021-02-22 | New taxonomic reference entry | Yanomamius neblina Bertani & Almeida, 2021 | Brazil | | Bertani & Almeida, 2021 |
| 2021-02-22 | New taxonomic reference entry | Yanomamius raonii Bertani & Almeida, 2021 | Brazil | | Bertani & Almeida, 2021 |
| 2021-02-22 | New taxonomic reference entry | Yanomamius franciscoi Bertani & Almeida, 2021 | Brazil | | Bertani & Almeida, 2021 |
| 2021-02-22 | Species distribution update | Yanomamius waikoshiemi (Bertani & Araújo, 2006) | Venezuela | (Old value) | Bertani & Almeida, 2021 |
| 2021-02-22 | New taxonomic reference entry | Yanomamius waikoshiemi (Bertani & Araújo, 2006) | Venezuela | | Bertani & Almeida, 2021 |
| 2021-02-22 | Species transferred to new genus | Yanomamius waikoshiemi (Bertani & Araújo, 2006) | Venezuela | Species transferred from Guyruita to Yanomamius | Bertani & Almeida, 2021 |
| 2021-02-22 | New species inserted | Yanomamius neblina Bertani & Almeida, 2021 | Brazil | | Bertani & Almeida, 2021 |
| 2021-02-22 | New species inserted | Yanomamius raonii Bertani & Almeida, 2021 | Brazil | | Bertani & Almeida, 2021 |
| 2021-02-22 | New species inserted | Yanomamius franciscoi Bertani & Almeida, 2021 | Brazil | | Bertani & Almeida, 2021 |
| 2021-02-22 | New genus inserted | Yanomamius Bertani & Almeida, 2021 | | Bertani & Almeida, 2021 |
| 2021-02-20 | Reference included | | | Sen & Sureshan, 2021a |
| 2021-02-20 | New taxonomic reference entry | Polyboea vulpina Thorell, 1895 | India, Myanmar, Thailand, Malaysia, Singapore | | Sen & Sureshan, 2021a |