Research article

• Revision of the cricket genus Nisitrus Saussure (Orthoptera: Gryllidae: Eneopterinae) and descriptions of five new species

  Ming Kai Tan, Rodzay bin Haji Abdul Wahab, Razy Japir, Authur Y.C. Chung, Tony Robillard

  1-75

  2021-07-28

• Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules

  Regan Drennan, Helena Wiklund, Muriel Rabone, Magdalena N. Georgieva, Thomas G. Dahlgren, Adrian G. Glover

  160-185

  2021-07-27

• A new riparian Andean Potamites (Reptilia, Squamata, Gymnophtalmidae) from El Sira Mountains, central Peru, with comments on P. ecpleopus Cope 1875, and on the taxonomy and biogeography of Potamites

  Germán Chávez, Jose Malqui, Alessandro Catenazzi

  136-159

  2021-07-23

• Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions

  Tulio F. Villalobos-Guerrero, Jyothi Kara, Izwandy Idris

  101–135

  2021-07-22

• Six new species of Anthuridae (Peracarida: Isopoda) from the southern Mexican Pacific

  Ubaldo Jarquín-Martínez, María del Socorro García-Madrigal

  61–100

  2021-07-21

• Proposal of two new genera of the family Zosimeidae Seifried (Copepoda: Harpacticoida): Heterozosime gen. nov. and Acritozosime gen. nov.

  Jong Guk Kim, Jimin Lee

  32–60

  2021-07-19

• Two new species of cheilostomate Bryozoa from Iberian waters

  Oscar Reverter-Gil, Javier Souto

  16-31

  2021-07-15

• Relicthemisia, a new subgenus of the oil-collecting bee genus Centris Fabricius, 1804 with notes on distribution and host plants of C. xanthomelaena Moure & Castro, 2001 (Hymenoptera: Apidae)

  Felipe Vivallo, Fernando César Vieira Zanella

  1-15

  2021-07-14

• Revisions to the faunas of Andrena of the Iberian Peninsula and Morocco with the descriptions of four new species (Hymenoptera: Andrenidae)

  Thomas J. Wood, Guillaume Ghisbain, Denis Michez, Christophe J. Praz

  147-193

  2021-07-12

• Integrative description of a new Tunisian tardigrade species, Macrobiotus azzunae sp. nov. (Eutardigrada, Macrobiotidae, hufelandi group)

  Jamila Ben Marnissi, Michele Cesari, Lorena Rebecchi, Roberto Bertolani

  122–146

  2021-07-09

• Taxonomic revision of the genus Elmomorphus Sharp, 1888 I. Japanese and Korean species (Coleoptera: Dryopidae)

  Ján Kodada, Dávid Selnekovič, Manfred A. Jäch, Katarína Goffová, Peter Vďačný

  97–121

  2021-07-08

• Hydroids (Cnidaria, Hydrozoa) from the Vema and Valdivia seamounts (SE Atlantic)

  Marta Gil, Fran Ramil

  49-96

  2021-07-07

• Seven new giant pill-millipede species and numerous new records of the genus Zoosphaerium from Madagascar (Diplopoda, Sphaerotheriida, Arthrosphaeridae)

  Thomas Wesener, Christina Sagorny

  1-48

  2021-07-06

• Three new species of herb gall wasps (Hymenoptera: Cynipidae) from Turkey

  Musa Azmaz, Yusuf Katılmış

  152-168

  2021-07-05

• Revision of Ganomymar De Santis, 1972, a remarkable genus of Mymaridae (Hymenoptera, Chalcidoidea) from Madagascar

  Serguei V. Triapitsyn

  127–151

  2021-07-02

• A fresh start in ambersnail (Gastropoda: Succineidae) taxonomy: finding a foothold using a widespread species of Oxyloma

  Kathryn E. Perez, Marco A. Martinez Cruz, Brent W. Steury, Gary M. Barker

  102–126

  2021-07-01

• Six new species of Handaoia Seyrig, 1952 (Hymenoptera, Ichneumonidae, Phygadeuontinae): the first to be described from the New World

  Santiago Bordera, Gavin R. Broad

  80-101

  2021-06-30

• Varadia, a new helicarionoidean semi-slug genus from India’s Western Ghats (Stylommatophora: Helicarionoidea)

  Amrut R. Bhosale, Ahmed J. Saadi, Christopher M. Wade, Tejas U. Thackeray, Asif S. Tamboli, Suhas K. Kadam, Dipak V. Muley, Dinarzarde C. Raheem

  50-79

  2021-06-29

• A review of the genus Alcathousiella Monné, 2005 (Coleoptera, Cerambycidae)

  Francisco E. de L. Nascimento, Miguel A. Monné, James E. Wappes

  37–49

  2021-06-28

• Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species

  Yuxia Yang, Shujuan Ge, Xingke Yang, Haoyu Liu

  1–36

  2021-06-25

• The fossil record of the family Benthopectinidae (Echinodermata, Asteroidea), a reappraisal

  Andy S. Gale, John W.M. Jagt

  149-190

  2021-06-23

• Two new species of Sonerila Roxb. (Melastomataceae) from Laos

  Phongphayboun Phonepaseuth, Phetlasy Souladeth, Keooudone Souvannakhoummane, Thyraphon Vongthavone, Shuichiro Tagane

  136-148

  2021-06-22

• Revision of the Merodon bombiformis group (Diptera: Syrphidae) – rare and endemic African hoverflies

  Ante Vujić, Snežana Radenković, Ljiljana Šašić Zorić, Laura Likov, Tamara Tot, Sanja Veselić, Mihajla Djan

  88–135

  2021-06-21

• Eleven new species of Amblypsilopus Bigot (Diptera: Dolichopodidae: Sciapodinae) and a key to the species of Madagascar and adjacent islands

  Igor Ya. Grichanov

  47–87

  2021-06-18

• Electrocambalidae fam. nov., a new family of Cambalidea from Cretaceous Burmese amber (Diplopoda, Spirostreptida)

  Leif Moritz, Thomas Wesener

  22-46

  2021-06-17

• Sechelleptus arborivagus sp. nov., a new arboreal spirostreptid millipede (Diplopoda, Spirostreptidae) endemic to Mayotte Island (Comoros Archipelago), Indian Ocean

  Didier VandenSpiegel, Arnaud Henrard, Aurore Mathys

  1–21

  2021-06-16

• Review of the millipede genus Levizonus Attems, 1898, with description of a new species from the Far East of Russia (Diplopoda, Polydesmida, Xystodesmidae)

  Elena V. Mikhaljova

  159-184

  2021-06-10

• Three new genera and five new species of the tribe Meconematini (Orthoptera: Tettigoniidae: Meconematinae) from Southwestern China

  Yan-Lin Chang, Tao Wang, Fu-Ming Shi

  140-158

  2021-06-08

• Monsters in the dark: systematics and biogeography of the stygobitic genus Godzillius (Crustacea: Remipedia) from the Lucayan Archipelago

  Lauren Ballou, Thomas M. Iliffe, Brian Kakuk, Brett C. Gonzalez, Karen J. Osborn, Katrine Worsaae, Kenneth Meland, Kenneth Broad, Heather Bracken-Grissom, Jørgen Olesen

  115-139

  2021-06-07

• One new genus and nineteen new species of ground spiders (Araneae: Gnaphosidae) from Iran, with other taxonomic considerations

  Alireza Zamani, Maria Chatzaki, Sergei L. Esyunin, Yuri M. Marusik

  68-114

  2021-06-04