Sechelleptus arborivagus sp. nov., a new arboreal spirostreptid millipede (Diplopoda, Spirostreptidae) endemic to Mayotte Island (Comoros Archipelago), Indian Ocean
Didier VANDENSPIEGEL et al.
1-21, Publié le 16 juin 2021, art. 755 (1)
Electrocambalidae fam. nov., a new family of Cambalidea from Cretaceous Burmese amber (Diplopoda, Spirostreptida)
Eleven new species of Amblypsilopus Bigot (Diptera: Dolichopodidae: Sciapodinae) and a key to the species of Madagascar and adjacent islands
Revision of the Merodon bombiformis group (Diptera: Syrphidae) – rare and endemic African hoverflies
Ante VUJIĆ et al.
88-135, Publié le 21 juin 2021, art. 755 (88) 
Two new species of Sonerila Roxb. (Melastomataceae) from Laos
Phongphayboun PHONEPASEUTH et al.
136-148, Publié le 22 juin 2021, art. 755 (136)
The fossil record of the family Benthopectinidae (Echinodermata, Asteroidea), a reappraisal
Andy S. GALE & John W. M. JAGT
149-190, Publié le 23 juin 2021, art. 755 (149) 
