Only 1 of 400 known species of scolopendrid centipedes worldwide is blind. A radiation of blind species of this group occurs in the Pilbara region of Western Australia, being restricted to subterranean habitats. Molecular phylogeny based on three genes permits the relationships of three formally named new species and two unnamed species of blind Cormocephalus to be inferred. The blind arid-zone species are more closely related to congeners from forests in the south-west of Western Australia than to geographically closer species from the arid zone.

Based on examination of newly collected samples from the Chinese provinces, the systematics of the Chinese Semisulcospiridae has been revised based on comparative anatomy and mitochondrial phylogenetics. Results revealed that Chinese Semisulcospiridae is represented by three genera, which differ in their reproductive strategy, including Semisulcospira, which is viviparous and contains three species (S. ningpoensis, S. gredleri, and S. pleuroceroides); Hua, which is oviparous and contains 11 species; and Koreoleptoxis, which is oviparous and contains one species. Namrutua and Senckenbergia are identified here as junior subjective synonyms of Semisulcospira. Additionally, four new species of Hua are described from Yunnan Province, China.

Isostenosmylus Krüger, 1913 is recognised as the most diverse lance lacewings (Neuroptera: Osmylidae) genus in the Neotropical region. Its highest diversity is found throughout the mountain chains of the Andes. In the past 4 years, the number of species classified in the genus has doubled. In this article, we describe seven new species, the male of a species that was only known by the female, and a neotype is designated. Phylogenetic and biogeographic analyses based on parsimony and morphology were performed for the first time to the Isostenosmylus species, representing the first analyses of the whole family in the Neotropical region.

In the century of extinctions, understanding the intricate relationships among organisms is a top priority. In this work we recognise a new family of South-east Asian Opiliones – the Beloniscidae, whose species were buried in the wrong family. Knowledge of tropical harvestmen is progressing by leaps and bounds when unsuspected groups are being identified, and the Beloniscidae is a well-defined group which only now is being brought to light.