| 2021-04-30 | Reference included | | | Kaito & Suzuki, 2020 |
| 2021-04-30 | New taxonomic reference entry | Cicurina japonica (Simon, 1886) | Korea, Japan. Introduced to Europe | | Kaito & Suzuki, 2020 |
| 2021-04-30 | Reference included | | | Komei, 2020b |
| 2021-04-30 | New taxonomic reference entry | Trachelas vulcani Simon, 1896 | China, Japan, Indonesia (Java, Moluccas) | | Komei, 2020b |
| 2021-04-30 | New taxonomic reference entry | Yaginumena maculosa (Yoshida & Ono, 2000) | Turkey, Caucasus (Georgia, Azerbaijan), India, China, Korea, Japan | | Komei, 2020b |
| 2021-04-30 | Reference included | | | Komei, 2020a |
| 2021-04-30 | New taxonomic reference entry | Grandilithus lynx (Kamura, 1994) | Taiwan, Japan (Ryukyu Is.) | | Komei, 2020a |
| 2021-04-30 | Reference included | | | Hayashi & Baba, 2020 |
| 2021-04-30 | New taxonomic reference entry | Hakka himeshimensis (Dönitz & Strand, 1906) | China, Korea, Japan. Introduced to USA (Hawaii, eastern USA) | | Hayashi & Baba, 2020 |
| 2021-04-30 | Reference included | | | Baba, Nakajima & Okumura, 2020 |
| 2021-04-30 | New taxonomic reference entry | Dichodactylus tarumii (Arita, 1976) | Japan | | Baba, Nakajima & Okumura, 2020 |
| 2021-04-30 | Reference included | | | Suzuki & Andoh, 2020 |
| 2021-04-30 | New taxonomic reference entry | Savignia saitoi Eskov, 1988 | Russia (Far East), Japan | | Suzuki & Andoh, 2020 |
| 2021-04-30 | Species distribution update | Savignia saitoi Eskov, 1988 | Russia (Far East), Japan | (Old value) | Suzuki & Andoh, 2020 |
| 2021-04-30 | Reference included | | | Suzuki & Okumura, 2020 |
| 2021-04-30 | New taxonomic reference entry | Draconarius dialeptus Okumura, 2013 | Japan | | Suzuki & Okumura, 2020 |
| 2021-04-30 | Reference included | | | Okumura, 2020c |
| 2021-04-30 | New taxonomic reference entry | Nesiocoelotes nasensis (Shimojana, 2000) | Japan (Ryukyu Is.) | | Okumura, 2020c |
| 2021-04-30 | Reference included | | | Perger & Rubio, 2021a |
| 2021-04-30 | New taxonomic reference entry | Myrmecotypus rubrofemoratus Perger & Rubio, 2021 | Bolivia | | Perger & Rubio, 2021a |
| 2021-04-30 | New species inserted | Myrmecotypus rubrofemoratus Perger & Rubio, 2021 | Bolivia | | Perger & Rubio, 2021a |
| 2021-04-30 | Reference included | | | Suzuki, 2020c |
| 2021-04-30 | New taxonomic reference entry | Attulus albolineatus (Kulczyński, 1895) | Russia (South Siberia to Far East), China, Korea, Japan | | Suzuki, 2020c |
| 2021-04-30 | New taxonomic reference entry | Xysticus transversomaculatus Bösenberg & Strand, 1906 | Korea, Japan | | Suzuki, 2020c |
| 2021-04-30 | New taxonomic reference entry | Oxyopes koreanus Paik, 1969 | Korea, Japan | | Suzuki, 2020c |
| 2021-04-30 | Reference included | | | Hayashi, 2020 |
| 2021-04-30 | New taxonomic reference entry | Weintrauboa insularis (Saito, 1935) | Russia (Sakhalin), Japan | | Hayashi, 2020 |
| 2021-04-30 | Reference included | | | Suzuki, 2020b |
| 2021-04-30 | New taxonomic reference entry | Marinarozelotes jaxartensis (Kroneberg, 1875) | Northern Africa to Caucasus, Russia (Europe) to Central Asia, Iran. Introduced to Hawaii, USA, Mexico, Ascension Is., South Africa, India, China, Japan | | Suzuki, 2020b |
| 2021-04-30 | Species distribution update | Marinarozelotes jaxartensis (Kroneberg, 1875) | Northern Africa to Caucasus, Russia (Europe) to Central Asia, Iran. Introduced to Hawaii, USA, Mexico, Ascension Is., South Africa, India, China, Japan | (Old value) | Suzuki, 2020b |
| 2021-04-30 | Reference included | | | Satoru, 2020 |
| 2021-04-30 | New taxonomic reference entry | Cyclosa alba Tanikawa, 1992 | Japan | | Satoru, 2020 |
| 2021-04-30 | Reference included | | | Baba, 2020 |
| 2021-04-30 | New taxonomic reference entry | Siler ruber Baba, Yamasaki & Tanikawa, 2019 | Japan | | Baba, 2020 |
| 2021-04-30 | Reference included | | | Serita & Kubota, 2020 |
| 2021-04-30 | New taxonomic reference entry | Zelotes exiguus (Müller & Schenkel, 1895) | Europe, Turkey, Russia (Europe to Far East), China, Korea, Japan | | Serita & Kubota, 2020 |
| 2021-04-30 | Reference included | | | Serita, 2020a |
| 2021-04-30 | New taxonomic reference entry | Pholcus yoshikurai Irie, 1997 | Japan | | Serita, 2020a |
| 2021-04-30 | Reference included | | | Suguro, 2020c |
| 2021-04-30 | New taxonomic reference entry | Dictis striatipes L. Koch, 1872 | Yemen, United Arab Emirates, Iraq, Iran, tropical Asia, Korea, Japan, China to Australia, Pacific Isles. Introduced to USA, Mexico | | Suguro, 2020c |
| 2021-04-30 | Reference included | | | Serita, 2019e |
| 2021-04-30 | New taxonomic reference entry | Tibellus fengi Efimik, 1999 | Russia (Far East), China, Korea, Japan | | Serita, 2019e |
| 2021-04-30 | New taxonomic reference entry | Trachelas vulcani Simon, 1896 | China, Japan, Indonesia (Java, Moluccas) | | Serita, 2019e |
| 2021-04-30 | New taxonomic reference entry | Xysticus kansuensis Tang, Song & Zhu, 1995 | China, Japan | | Serita, 2019e |
| 2021-04-30 | New taxonomic reference entry | Arctosa hikosanensis Tanaka, 1985 | Japan | | Serita, 2019e |
| 2021-04-30 | Reference included | | | Suzuki, 2019f |
| 2021-04-30 | New taxonomic reference entry | Cyclosa monticola Bösenberg & Strand, 1906 | China, Korea, Taiwan, Japan, Russia (Far East)? | | Suzuki, 2019f |
| 2021-04-30 | New taxonomic reference entry | Cyclosa alba Tanikawa, 1992 | Japan | | Suzuki, 2019f |
| 2021-04-30 | New taxonomic reference entry | Badumna longinqua (L. Koch, 1867) | Australia. Introduced to New Zealand, USA, Mexico, Brazil, Uruguay, South Africa, Britain, Germany, Japan | | Suzuki, 2019f |
| 2021-04-30 | Reference included | | | Serita, 2019d |