The genus Planaeschna McLachlan, 1895 and its subgroupings in Vietnam, with descriptions of three new species (Odonata: Aeshnidae)
New records of solitary vespid wasps (Hymenoptera: Vespidae: Masarinae and Eumeninae s. l.) from the Nakhchivan Autonomous Republic of Azerbaijan
A taxonomic revision of the South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini)
The mainly South African genus Lanurgus revised (Coleoptera, Scolytinae)
Morphology of the pupae of Physonota humilis Boheman and Physonota stigmatilis Boheman (Coleoptera: Chrysomelidae: Cassidinae: Ischyrosonychini)
A new Gonamytta katydid from central Mozambique (Orthoptera: Tettigoniidae: Meconematinae)
Comparative mitogenomes and phylogenetic analysis reveal taxonomic relationship of genera Teredorus and Systolederus (Orthoptera, Tetrigoidea)
Description of nymph of Brasilocaenis atawallpa Lima, Molineri, Vieira, Pinheiro & Salles, 2019 (Ephemeroptera: Caenidae) and notes on its taxonomic status
New species of Chaetonerius Hendel (Diptera: Neriidae) from the Oriental Region
Pseudococcus inconstans nom. nov., a replacement name for Pseudococcus variabilis von Ellenrieder & Watson, 2016 (Hemiptera: Coccomorpha: Pseudococcidae), and a correction
