Taxonomy of the genus Meleonoma Meyrick, 1914 (Lepidoptera: Autostichidae) from China (IV), with descriptions of twelve new species
Rediscovery of the rare Phrynomedusa appendiculata (Lutz, 1925) (Anura: Phyllomedusidae) from the Atlantic Forest of southeastern Brazil
Two new species of Cunaxa (Acari: Prostigmata: Cunaxidae) from Vietnam
A Catalogue of Indian Hydraenidae (Insecta: Coleoptera)
Revision of Malagasy species of the genus Merma Weise (Coccinellidae: Epilachnini)
The gastromyzophorous tadpole of the pink harlequin frog from Suriname with comments on the taxonomy of Guianan Clade Atelopus (Amphibia, Bufonidae)
A new species of oak gall wasp (Hymenoptera: Cynipidae, Cynipini) from Turkey
Erratum: NING LABBISH CHAO, ALFREDO CARVALHO-FILHO & JONAS DE ANDRADE SANTOS (2021) Five new species of Western Atlantic stardrums, Stellifer (Perciformes: Sciaenidae) with a key to Atlantic Stellifer species. Zootaxa, 4991: 434–466.
Erratum: OLDRICH SYCHRA & RICARDO L. PALMA (2021) A new species of Myrsidea (Insecta: Phthiraptera: Menoponidae) from Chile. Zootaxa, 5016: 441–447.
