| 2021-11-24 | New taxonomic reference entry | Loxosceles imazighen Ribera & Massa, 2021 | Morocco | | Massa & Ribera, 2021 |
| 2021-11-24 | New species inserted | Loxosceles imazighen Ribera & Massa, 2021 | Morocco | | Massa & Ribera, 2021 |
| 2021-11-24 | Species distribution update | Scotinotylus vettonicus Barrientos & Hernández-Corral, 2020 | Portugal, Spain, France | (Old value) | Déjean & Danflous, 2021 |
| 2021-11-24 | Reference included | | | Déjean & Danflous, 2021 |
| 2021-11-24 | New taxonomic reference entry | Scotinotylus vettonicus Barrientos & Hernández-Corral, 2020 | Portugal, Spain, France | | Déjean & Danflous, 2021 |
| 2021-11-24 | New taxonomic reference entry | Scotinotylus evansi (O. Pickard-Cambridge, 1894) | Greenland, Europe | | Déjean & Danflous, 2021 |
| 2021-11-24 | Reference included | | | Jacquet & Oger, 2021 |
| 2021-11-24 | New taxonomic reference entry | Porrhomma montanum Jackson, 1913 | Europe, Georgia, Russia (Europe to Far East), Korea, Japan | | Jacquet & Oger, 2021 |
| 2021-11-24 | New taxonomic reference entry | Peponocranium praeceps Miller, 1943 | France, Germany to Russia (Europe), Finland | | Jacquet & Oger, 2021 |
| 2021-11-24 | Species distribution update | Peponocranium praeceps Miller, 1943 | France, Germany to Russia (Europe), Finland | (Old value) | Jacquet & Oger, 2021 |
| 2021-11-24 | Reference included | | | Déjean & Oger, 2021 |
| 2021-11-24 | New taxonomic reference entry | Moebelia penicillata (Westring, 1851) | Europe, Caucasus | | Déjean & Oger, 2021 |
| 2021-11-24 | New taxonomic reference entry | Moebelia berolinensis (Wunderlich, 1969) | France, Germany | | Déjean & Oger, 2021 |
| 2021-11-24 | Species distribution update | Moebelia berolinensis (Wunderlich, 1969) | France, Germany | (Old value) | Déjean & Oger, 2021 |
| 2021-11-24 | Reference included | | | Courtial et al., 2021 |
| 2021-11-24 | New taxonomic reference entry | Phaeocedus hebraeus Levy, 1999 | Greece, Cyprus, Israel | | Courtial et al., 2021 |
| 2021-11-24 | New taxonomic reference entry | Phaeocedus braccatus (L. Koch, 1866) | Europe, Turkey, Caucasus, Russia (Europe to Far East), Iran, Kazakhstan, Central Asia, China, Japan | | Courtial et al., 2021 |
| 2021-11-24 | New taxonomic reference entry | Phaeocedus vankeeri Chatzaki, 2019 | France (incl. Corsica), Greece (Rhodes, Symi) | | Courtial et al., 2021 |
| 2021-11-24 | Species distribution update | Phaeocedus vankeeri Chatzaki, 2019 | France (incl. Corsica), Greece (Rhodes, Symi) | (Old value) | Courtial et al., 2021 |
| 2021-11-24 | Reference included | | | Michaud, 2021 |
| 2021-11-24 | New taxonomic reference entry | Janetschekia monodon (O. Pickard-Cambridge, 1873) | France, Switzerland, Germany, Austria, Italy, Albania | | Michaud, 2021 |
| 2021-11-24 | Species distribution update | Janetschekia monodon (O. Pickard-Cambridge, 1873) | France, Switzerland, Germany, Austria, Italy, Albania | (Old value) | Michaud, 2021 |
| 2021-11-22 | New taxonomic reference entry | Spiracme mongolica (Schenkel, 1963) | Slovakia, Serbia, Ukraine, Russia (Europe to Central Asia), Azerbaijan, Kazakhstan, Mongolia, China | | Marusik & Logunov, 1990 |
| 2021-11-22 | Reference included | | | Im, Kim & Lee, 2021 |
| 2021-11-22 | New taxonomic reference entry | Bassaniana birudis Im, Kim & Lee, 2021 | Korea | | Im, Kim & Lee, 2021 |
| 2021-11-22 | New species inserted | Bassaniana birudis Im, Kim & Lee, 2021 | Korea | | Im, Kim & Lee, 2021 |
| 2021-11-22 | Reference included | | | Purgat et al., 2021b |
| 2021-11-22 | New taxonomic reference entry | Spiracme mongolica (Schenkel, 1963) | Slovakia, Serbia, Ukraine, Russia (Europe to Central Asia), Azerbaijan, Kazakhstan, Mongolia, China | | Purgat et al., 2021b |
| 2021-11-22 | Species transferred to new genus | Spiracme mongolica (Schenkel, 1963) | Slovakia, Serbia, Ukraine, Russia (Europe to Central Asia), Azerbaijan, Kazakhstan, Mongolia, China | Species transferred from Xysticus to Spiracme | Purgat et al., 2021b |
| 2021-11-22 | Species distribution update | Spiracme mongolica (Schenkel, 1963) | Slovakia, Serbia, Ukraine, Russia (Europe to Central Asia), Azerbaijan, Kazakhstan, Mongolia, China | (Old value) | Purgat et al., 2021b |
| 2021-11-22 | New taxonomic reference entry | Walckenaeria stylifrons (O. Pickard-Cambridge, 1875) | Europe, Turkey | | Purgat et al., 2021b |
| 2021-11-21 | Reference included | | | Paquin & Arbour, 2021f |
| 2021-11-21 | New taxonomic reference entry | Cicurina itasca Chamberlin & Ivie, 1940 | USA | | Paquin & Arbour, 2021f |
| 2021-11-21 | New taxonomic reference entry | Cicurina brevis (Emerton, 1890) | Canada, USA | | Paquin & Arbour, 2021f |
| 2021-11-21 | Reference included | | | Paquin, Arbour & Simard, 2021 |
| 2021-11-21 | New taxonomic reference entry | Emblyna cruciata (Emerton, 1888) | Canada, USA | | Paquin, Arbour & Simard, 2021 |
| 2021-11-21 | Reference included | | | Paquin & Lebrun, 2021 |
| 2021-11-21 | New taxonomic reference entry | Scytodes thoracica (Latreille, 1802) | Europe, North Africa, Turkey, Iran, temperate Asia to China, Korea, Japan. Introduced to North America, Argentina, South Africa, India, Australia, New Zealand | | Paquin & Lebrun, 2021 |
| 2021-11-21 | Reference included | | | Paradis & Paquin, 2021 |
| 2021-11-21 | New taxonomic reference entry | Erigone dentosa O. Pickard-Cambridge, 1894 | Canada, USA, Mexico, Guatemala. Introduced to Europe | | Paradis & Paquin, 2021 |
| 2021-11-21 | Reference included | | | Leclerc, 2021 |
| 2021-11-21 | New taxonomic reference entry | Clubiona pallidula (Clerck, 1757) | Europe, Caucasus, Russia (Europe to Far East), Central Asia. Introduced to North America | | Leclerc, 2021 |
| 2021-11-21 | New taxonomic reference entry | Clubiona lutescens Westring, 1851 | Europe, Turkey, Caucasus, Russia (Europe to Far East), Iran, Kazakhstan, Korea, Japan. Introduced to North America | | Leclerc, 2021 |
| 2021-11-21 | Reference included | | | Paquin & Arbour, 2021e |
| 2021-11-21 | New taxonomic reference entry | Trabeops aurantiacus (Emerton, 1885) | Canada, USA | | Paquin & Arbour, 2021e |
| 2021-11-21 | Reference included | | | Paquin & Arbour, 2021d |
| 2021-11-21 | New taxonomic reference entry | Araneus diadematus Clerck, 1757 | Europe, Middle East, Turkey, Caucasus, Russia (Europe to Far East), Iran, Central Asia, China, Japan. Introduced to North America | | Paquin & Arbour, 2021d |
| 2021-11-21 | New taxonomic reference entry | Araneus marmoreus Clerck, 1757 | North America, Europe, Turkey, Caucasus, Russia (Europe to Far East), Iran, Central Asia, India, China, Korea, Japan | | Paquin & Arbour, 2021d |
| 2021-11-21 | Reference included | | | Paquin & Arbour, 2021c |
| 2021-11-21 | New taxonomic reference entry | Phrurolithus festivus (C. L. Koch, 1835) | Europe, Turkey, Caucasus, Russia (Europe to Far East), Kazakhstan, Iran, China, Korea, Japan. Introduced to Canada | | Paquin & Arbour, 2021c |