Two new species and one new record species of genus Arrenurus Dugès, 1834 (Acari, Hydrachnidia, Arrenuridae) from China

Parasitylenchus myiophagus n. sp. (Nematoda: Parasitylenchidae), a tylenchid nematode parasite of long-legged flies (Diptera: Dolichopodidae)

Variation in Fukienogomphus prometheus (Lieftinck, 1939) reveals Stylurus takashii (Asahina, 1966) as a junior synonym, with discussion on the status of F. choifongae Wilson & Tam, 2006 (Odonata: Gomphidae)

A new species of fossil Calosoma (Coleoptera: Carabidae) from the Geumgwangdong Formation (Early Miocene), South Korea

A new species of Placospongia Gray, 1867 (Porifera, Demospongiae, Placospongiidae) and new record of P. ruetzleri van Soest, 2017 from Northeast, Brazil

A new species and new distributional records of Haroldius Boucomont, 1914 (Coleoptera: Scarabaeidae: Scarabaeinae) from southern Africa

First record of the genus Lodosocoris Ahmad & Afzal (Hemiptera: Heteroptera: Pentatomidae: Halyini) from India with description of a new species

A new tiger beetle from the Gulf Coast of Texas (Coleoptera, Cicindelidae, Cicindelini)

Five species of the family Odiidae (Crustacea: Amphipoda) collected from Japan, with descriptions of a new genus and four new species

Cherax latimanus sp. nov., a new burrow-dwelling freshwater crayfish (Decapoda, Parastacidae) from the mid-Murray River catchment, Australia

The first record of Cavernulina orientalis (Thomson & Simpson, 1909) (Octocorallia: Pennatulacea: Veretillidae) from the Bay coast of Visakhapatnam, Andhra Pradesh

Is it time to describe new species without diagnoses?—A comment on Sharkey et al. (2021)

A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan

Morphological groupings within Euphlyctis (Anura: Dicroglossidae) and description of a new species from the surroundings of Thattekad Bird Sanctuary, Kerala, India