| 2018-05-01 | New taxonomic reference entry | Cuacuba morrodopilar Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New taxonomic reference entry | Cuacuba mariana Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New species inserted | Cuacuba morrodopilar Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New species inserted | Cuacuba mariana Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New genus inserted | Cuacuba Prete, Cizauskas & Brescovit, 2018 | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New taxonomic reference entry | Plato novalima Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New taxonomic reference entry | Plato striatus Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New taxonomic reference entry | Plato ferriferus Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New species inserted | Plato novalima Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New species inserted | Plato striatus Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | New species inserted | Plato ferriferus Prete, Cizauskas & Brescovit, 2018 | Brazil | | Prete, Cizauskas & Brescovit, 2018 |
| 2018-05-01 | Reference included | | | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Cyrtophora citricola (Forsskål, 1775) | Southern Europe, Africa, Middle East, Pakistan, India, China, Japan. Introduced to Cuba, Dominican Rep., Costa Rica, Colombia, Brazil | | Martins & Santos, 2018 |
| 2018-05-01 | Species distribution update | Cyrtophora citricola (Forsskål, 1775) | Southern Europe, Africa, Middle East, Pakistan, India, China, Japan. Introduced to Cuba, Dominican Rep., Costa Rica, Colombia, Brazil | (Old value) | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Kapogea sellata (Simon, 1895) | Greater Antilles, Costa Rica to Argentina | | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Manogea porracea (C. L. Koch, 1838) | Panama to Argentina | | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Mecynogea lemniscata (Walckenaer, 1841) | USA to Argentina | | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Mecynogea buique Levi, 1997 | Brazil | | Martins & Santos, 2018 |
| 2018-05-01 | First description of male | Mecynogea buique Levi, 1997 | Brazil | (Old value) | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Argiope carvalhoi (Mello-Leitão, 1944) | Brazil | | Levi, 1997 |
| 2018-05-01 | New taxonomic reference entry | Argiope carvalhoi (Mello-Leitão, 1944) | Brazil | | Martins & Santos, 2018 |
| 2018-05-01 | Species transferred to new genus | Argiope carvalhoi (Mello-Leitão, 1944) | Brazil | Species transferred from Mecynogea to Argiope | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Argiope carvalhoi (Mello-Leitão, 1944) | Brazil | | Mello-Leitão, 1944a |
| 2018-05-01 | Species updated | Argiope carvalhoi (Mello-Leitão, 1944) | Brazil | New status (Old value) | Martins & Santos, 2018 |
| 2018-05-01 | Species synonymy | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | Mecynogea chavona synonymized with Mecynogea infelix | Martins & Santos, 2018 |
| 2018-05-01 | Species updated | Mecynogea chavona Levi, 1997 | Colombia | Status: Synonym (Old value) | Martins & Santos, 2018 |
| 2018-05-01 | New taxonomic reference entry | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | | Levi, 1997 |
| 2018-05-01 | New taxonomic reference entry | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | | Levi, 1997 |
| 2018-05-01 | New taxonomic reference entry | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | | Martins & Santos, 2018 |
| 2018-05-01 | Taxonomic reference added from other taxon | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | (Old value) | |
| 2018-05-01 | Taxonomic reference assigned to new taxon | Mecynogea bigibba Simon, 1903 | Brazil, Uruguay | Taxonomic reference entry assigned to Mecynogea infelix (Soares & Camargo, 1948) | |
| 2018-05-01 | Taxonomic reference added from other taxon | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | (Old value) | |
| 2018-05-01 | Taxonomic reference assigned to new taxon | Mecynogea bigibba Simon, 1903 | Brazil, Uruguay | Taxonomic reference entry assigned to Mecynogea infelix (Soares & Camargo, 1948) | |
| 2018-05-01 | Species updated | Mecynogea infelix (Soares & Camargo, 1948) | Colombia, Brazil | Removed synonymy (Old value) | Martins & Santos, 2018 |
| 2018-05-01 | Reference included | | | Malik et al., 2018 |
| 2018-05-01 | New taxonomic reference entry | Parasteatoda kompirensis (Bösenberg & Strand, 1906) | India, China, Korea, Japan | | Malik et al., 2018 |
| 2018-05-01 | Species distribution update | Parasteatoda kompirensis (Bösenberg & Strand, 1906) | India, China, Korea, Japan | (Old value) | Malik et al., 2018 |
| 2018-04-30 | Reference included | | | Zhang, Yu & Zhong, 2018 |
| 2018-04-30 | New taxonomic reference entry | Clubiona lamellaris Zhang, Yu & Zhong, 2018 | China | | Zhang, Yu & Zhong, 2018 |
| 2018-04-30 | New taxonomic reference entry | Clubiona bifurcata Zhang, Yu & Zhong, 2018 | China | | Zhang, Yu & Zhong, 2018 |
| 2018-04-30 | New species inserted | Clubiona lamellaris Zhang, Yu & Zhong, 2018 | China | | Zhang, Yu & Zhong, 2018 |
| 2018-04-30 | New species inserted | Clubiona bifurcata Zhang, Yu & Zhong, 2018 | China | | Zhang, Yu & Zhong, 2018 |
| 2018-04-27 | New taxonomic reference entry | Padillothorax taprobanicus Simon, 1902 | Sri Lanka | | Prószyński, 2018b |
| 2018-04-27 | Species transferred to new genus | Padillothorax taprobanicus Simon, 1902 | Sri Lanka | Species transferred from Stagetillus to Padillothorax | Prószyński, 2018b |
| 2018-04-27 | New taxonomic reference entry | Padillothorax semiostrinus Simon, 1901 | Malaysia (peninsula), Singapore, Taiwan? | | Prószyński, 2018b |
| 2018-04-27 | Species transferred to new genus | Padillothorax semiostrinus Simon, 1901 | Malaysia (peninsula), Singapore, Taiwan? | Species transferred from Stagetillus to Padillothorax | Prószyński, 2018b |
| 2018-04-27 | Genus updated | Padillothorax Simon, 1901 | Removed synonymy (Old value) | Prószyński, 2018b |
| 2018-04-27 | New taxonomic reference entry | Padillothorus elegans (Reimoser, 1927) | Indonesia (Sumatra) | | Prószyński, 2018b |
| 2018-04-27 | Species transferred to new genus | Padillothorus elegans (Reimoser, 1927) | Indonesia (Sumatra) | Species transferred from Stagetillus to Padillothorus | Prószyński, 2018b |
| 2018-04-27 | New genus inserted | Padillothorus Prószyński, 2018 | | Prószyński, 2018b |