Species richness estimation of European Collembola using morphology is challenged by molecular detection of cryptic species. In this study, the morphological and molecular analysis of 26 European Lepidocyrtus species reveals that the common L. violaceus morphospecies is a polyphyletic entity in Europe. The number and distribution of pseudopores on body and appendages is a promising morphological character with a clear phylogenetic signal that can help in describing the detected cryptic diversity.

Our knowledge of many species of Neotropical harvestmen (Arachnida: Opiliones) of the superfamily Zalmoxoidea is still scarce. In this regard, a phylogenetic reanalysis of this group was performed to elucidate the ancestral range reconstruction of this clade, specifically on the neglected family Icaleptidae. In this way, we included molecular data of Ethobunus pilosus (formerly Cynortina pilosa), originally described in Phalangodidae and later transferred to Zalmoxidae. Through phylogenetic methods, we assigned this species into Icaleptidae, creating the new genus Trypophobica to allocate it, describing also the new species Trypophobica llama sp. nov.

Trapdoor spiders of the Euoplos variabilis-group are abundant and diverse in subtropical eastern Australia. We explore the phylogeny and taxonomy of species in the group using an integrative systematics approach. We describe five new species from south-eastern Queensland, redescribe two previously named species, and reillustrate one recently described species. We reveal a case of sympatry in the Brisbane Valley, south of the Brisbane River – a notable result given that closely related mygalomorph species usually occur allopatrically.

It appears that some marine and coastal species of the Western Pacific are widely distributed throughout the area, with either no clear or only shallow phylogeographic structure. The present study describes a new species of sesarmid crab, Parasesarma daviei sp. nov., from New Caledonia and other oceanic islands of the Western Pacific. Genetically, specimens of the new species from different islands (e.g. Guam, Palau, Fiji and Loyalty Islands) are quite homogeneous and cluster together in a well-supported clade, while also being markedly divergent from their closest congeners.

Asian cicadas have diversified rapidly and steadily, creating a challenging and unstable situation for taxonomists. This first focused molecular systematic study of a large primarily Asian cicada clade containing nearly 20% of world species shows that charismatic and taxonomically relevant phenotypes have evolved repeatedly and convergently while the group diversified in both Asia and India during the middle Cenozoic Era. Several long-established tribes require revision, and we intend for the genetic results to stimulate a broader morphological revision.