Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species
Yuxia YANG et al.
1-36, Published on 25 June 2021, art. 757 (1)
Varadia, a new helicarionoidean semi-slug genus fromIndia’s Western Ghats (Stylommatophora: Helicarionoidea)
Amrut R. BHOSALE et al.
50-79, Published on 29 June 2021, art. 757 (50) 
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, Published on 30 June 2021, art. 757 (80) 
A fresh start in ambersnail (Gastropoda: Succineidae) taxonomy: finding a foothold using a widespread species of Oxyloma
Kathryn E. PEREZ et al.
102-126, Published on 01 July 2021, art. 757 (102) 
Revision of Ganomymar De Santis, 1972, a remarkable genus of Mymaridae (Hymenoptera, Chalcidoidea) from Madagascar
Three new species of herb gall wasps (Hymenoptera: Cynipidae) from Turkey
