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Nudibranchs, also known as sea slugs, represent a high species diversity within Heterobranchia (Mollusca, Gastropoda); however, the systematics within this order remain controvers…

Four new species of the poorly known genus Megapleonum Huang, Shih & Ahyong, 2018, are described from Guangdong Province, China: Megapleonum falx sp. nov. from Huizhou City, M. ya…

A new species of the genus Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), Alloperla triquetra Rehman, Huo & Du, sp. nov., is described from Liaoning Province, China, with dia…

Mesomexovis Gonzalez-Santillan & Prendini, 2013 is a scorpion genus of the Vaejovidae family that comprises seven species, all endemic to Mexico. The present study describes a new…

Molecular and morphological data suggest that the Mediterranean populations of the non-indigenous genus Dendostrea are part of a single clade. This clade includes oysters from Rod…

This study documents the diversity and distribution of the subfamily Attageninae (Coleoptera: Dermestidae) in Saudi Arabia based on the examination of specimens from institutional…

This study presents the first comprehensive cytogenetic analysis of the common amphibian parasite Acanthocephalus ranae. A combination of classical cytogenetic methods and molecul…

Among the very rarest of Nearctic ants are three species of inquiline social parasites belonging to the genus Monomorium, namely Monomorium inquilinum DuBois, Monomorium pergandei…

The Neotropical species of the hoverfly genus Serichlamys Curran, 1925 are revised. A total number of 14 Neotropical species are recognized, two of which were previously described…

The marsupials of Mato Grosso do Sul (MS) state in southwestern Brazil are still poorly known, with most research being concentrated around the Pantanal wetland. In this work, the…

This is the first part of a catalogue containing all known types in the mammal collection of Naturalis Biodiversity Center, Leiden, The Netherlands, covering the orders Monotremat…

The discovery and description of a new representative of the Ceratonotus group (Copepoda, Harpacticoida, Cletodidae T. Scott) in the Grussaí Canyon off the coast of Brazil opened …

Two new dasytid species of the genus Danaceothrix Majer, 1989 are discovered from Xizang, China and described under the names of D. medogense sp. nov. and D. xizangense sp. nov. T…

The genus Pseudobornella Baba, 1932 (Gastropoda, Nudibranchia, Dendronotidae), which was previously thought to be monotypic and restricted to the Western Pacific, is here expanded…

Two new species of the primitively segmented spider genus Songthela Ono, 2000, which were collected from Hunan Province, China, are described based on specimens of both sexes: S. …

Growing evidence indicates that species diversity within the genus Chiloglanis Peters 1868 is poorly resolved and major taxonomic revisions are required. By integrating genetic an…

The taxonomy of crab spiders (Thomisidae) has been the focus of many reviews, adding new genera such as Ibana and Crockeria while synonymising Ascurisoma with Cebrenninus, and des…

A new species of stalked crinoid, Endoxocrinus (Diplocrinus) kexuei sp. nov. belonging to the family Balanocrinidae, is described from cold seeps in the South China Sea. The gener…

A new scorpion species, Scorpiops (Euscorpiops) doiphukha sp. nov., belonging to the family Scorpiopidae Kraepelin, 1905, is described based on 12 specimens of both sexes (three a…

Phylogenetic analyses based on 1459 base pairs of the mitochondrial gene ND2 and its flanking tRNAs indicate that Cyrtodactylus consobrinus from the type locality in Sarawak, East…

A new species, Stemonosudis adenensis sp. nov., of slender barracudina is described based on a specimen collected off Somalia, Western Indian Ocean. The new species differs from i…

Asiageodromicus dawai Yang & Peng, sp. nov. (Xizang: Langkazi) and Asiageodromicus zhangi Yang & Peng, sp. nov. (Xizang: Cuona) are described and illustrated. Additional records o…

In the Afrotropical Region, Sphyracephala beccarii (Rondani) and S. munroi Curran are found, the former just extending into the Palaearctic Region. In the latter region, S. babadj…

Spiders of the family Philodromidae Thorell, 1869 from Guizhou and Hubei provinces, China are studied. A total of three genera and seven species are reported and illustrated, comp…

Fruit flies of the tribe Dacini (Tephritidae) include many agricultural pests, but also crucial pollinators of orchids and other plants. Surveys for Dacini fruit flies were conduc…

Two new species of the genus Nitocrella are described from a karstic spring in Loei Province, northeast Thailand. They are the first representatives of the genus Nitocrella Chappu…

The gastropod Siphonaria japonica, belonging to the family Siphonariidae, is an important grazer in the rocky intertidal zone of China, possessing significant ecological functions…

The genus Acantholycosa Dahl, 1908 from China is reviewed, including five species: A. aborigenica Zyuzin & Marusik, 1988, A. lignaria (Clerck, 1757), A. sterneri (Marusik, 1993), …

A new species of false pit scale (Hemiptera, Coccoidea, Lecanodiaspididae), Lecanodiaspis jiangxiensis Zhang & Wang, sp. nov., collected on Castanea mollissima Blume (Fagaceae) in…

In this study, we employ a geometric morphometric approach to quantify morphological differences among taxa of the genus Oropodisma Uvarov,1942, a complex of alpine grasshoppers c…

The small microgastrine braconid genus Wilkinsonellus Mason was known previously from parts of the Australo-Oriental region, but it has never been reported from Borneo (Brunei and…

This study provides a taxonomic revision of the Quasipaa verrucospinosa complex in Vietnam. Based on integrative taxonomic analyses, Quasipaa verrucospinosa sensu stricto is distr…

A new species of karst-dwelling Bent-toed Gecko (genus Cyrtodactylus) is described from an unexplored karstic archipelago in western Cambodia. Cyrtodactylus kampingpoiensis sp. no…

Thirteen spider species of the genus Pholcus Walckenaer, 1805 are reported from a diversity survey in eastern Sichuan and neighboring areas (northeastern Yunnan and western Guizho…

Historically, herpetological research in Madagascar has largely overlooked small forest fragments outside the country protected area network. Despite substantial declines in speci…

The genus Orchestina is recorded for the first time from Xizang, China. One known species and three new species are reported: Orchestina colubrina Liu, Henrard & Xu, 2019 (♂♀), Or…

The swallowtail butterflies (Lepidoptera: Papilionidae) have been researched extensively as a model species in biology, ecology, and conservation biology. During a recent expediti…

Previous DNA-based studies identified four genetic lineages within Pseudobarbus afer: (i) the Mandela lineage confined to the Sundays, Swartkops, and Baakens river systems, (ii) t…

The rather small millipede family Rhachodesmidae is endemic to Central America, and is represented in Costa Rica by only four species of the genus Aceratophallus, including A. log…

A list of 94 salticid species of 48 genera collected from Jinggangshan National Nature Reserve in Jiangxi Province is provided. Four new salticid species are diagnosed, described,…

Three new genera as well as one new species belonging to Lycosidae are described, Houcosa gen. nov. (type species: Houcosa zhaoi sp. nov., ♂♀), Kuncosa gen. nov. (type species: Ar…

Three new species within the genus Psectrocladius Kieffer, 1906, namely Psectrocladius (Mesopsectrocladius) wangi Liu, sp. nov., Psectrocladius (Psectrocladius) gracilis Liu, sp. …

Agrotis villenensis sp. nov. is described from the Iberian Peninsula. Differential superficial, genital and genetic (barcode) characters from its closest Iberian and European rela…

Norfolk Island is a small, isolated archipelago in the Pacific Ocean, 1400 km east of the Australian mainland. The history of human colonisation and land use on the island has res…

To date, 26 species of the subfamily Nomiinae are known to occur in Pakistan. Among these, most of the species have been reported from the northern parts of Punjab, particularly t…

The flat-back millipede genus Touranella Attems, 1937 is currently comprised of 13 species, including three new ones from Laos: T. chenla Likhitrakarn, sp. nov., T. srisonchaii Li…

The superfamily Chrysomeloidea (Cerambycidae + Chrysomelidae + Megalopodidae) encompasses a diverse phytophagous beetles, whose larvae exhibit internal or external feeding on leav…

One new species, Agnesiella (Draberiella) geminicruciata sp. nov., is described and illustrated. Agnesiella (D.) lidia, A. (D.) olena and A. (D.) magda are documented from China f…

For the first time, Bethylus Latreille, the type genus of Bethylidae (Hymenoptera, Chrysidoidea, Bethylinae), is reported from the Korean Peninsula based on the discovery of a new…

Paravelia Breddin, 1898 is the most speciose genus of the subfamily Veliinae (Hemiptera, Heteroptera, Gerromorpha, Veliidae). It has gone through revisions since the 1990s, with s…