Phylogenetic position of genera Acrostilicus Hubbardand Pachystilicus Casey (Staphylinidae, Paederinae)and their redescription
Dagmara ŻYŁA et al.
1-22, Published on 09 May 2022, art. 819 (1)
Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra fromnorthern Tanzania
Martin J. GENNER et al.
23-54, Published on 11 May 2022, art. 819 (23) 
Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra fromnorthern Tanzania
Rodrigo Barbosa GONÇALVES & Felipe Walter PEREIRA
55-89, Published on 12 May 2022, art. 819 (55) 
Review of the genus Caucaseuma Strasser, 1970, with the description of a new cavernicolous species from the Western Caucasus and an updated key and distribution (Diplopoda, Chordeumatida, Anthroleucosomatidae)
Dragan Ž. ANTIĆ & Slobodan E. MAKAROV
90-107, Published on 13 May 2022, art. 819 (90) 
Revision of the Eurasian species of Aegilips Haliday, 1835 (Hymenoptera: Figitidae: Anacharitinae)
Noel MATA-CASANOVA et al.
108-139, Published on 16 May 2022, art. 819 (108) 
A review of Atlantic deep-water species in the genus Talassia (Caenogastropoda, Vanikoridae)
HOFFMAN Leon & FREIWALD André
140-157, Published on 17 May 2022, art. 819 (140) 
Description of two new species of Oecetis (Trichoptera, Leptoceridae) from Borneo
Kjell Arne JOHANSON et al.
158-165, Published on 18 May 2022, art. 819 (158) 
The first Arctic conspicuously coloured Pleusymtes(Crustacea: Amphipoda: Pleustidae)associated with sea anemones in the Barents Sea
Ivan MARIN et al.
166-187, Published on 19 May 2022, art. 819 (166) 
