Description of sp. nov., a new hard tick species (Acari, Ixodidae) collected from mouse-eared bats (Vespertilionidae, ) in Vietnam.

Historically, for more than one and a half centuries, only one so-called "long-legged bat tick" species, i.e., Koch was known to science.

Detour canal, a civil engineering heritage created through historical struggle for water resources, now provides the habitats for a rare freshwater fish.

The Ariake catfish, , is a freshwater fish endemic to Kyushu Island, Japan. However, these catfish are now endangered owing to environmental changes. Despite their status, there is scant quantitative research on the Ariake catfish regarding their potential conservation.

Preliminary assessment of genetic variation in the Japanese endemic freshwater crab, , based on mitochondrial DNA sequences.

, a freshwater crab species endemic to Japan, has the largest distribution range amongst the 19 known species in the country. Due to its low dispersal capability and restricted habitat to freshwater, it serves as an excellent model for understanding gene flow between geographically isolated populations. In this study, we analysed the genetic relationships of 26 populations collected from different locations in the Japanese archipelago using two mitochondrial DNA regions - cytochrome oxidase subunit I ( and cytochrome b ().

Erratum: Corrigendum: Nozaki T, Maruyama M (2022) Taxonomy of Kraatz, 1856 (Coleoptera, Staphylinidae) from the East Palearctic: I. (Sharp, 1874) and a new allied species. ZooKeys 1121: 39-58. https://doi.org/10.3897/zookeys.1121.85489.

[This corrects the article DOI: 10.3897/zookeys.1121.

Taxonomy of Kraatz, 1856 (Coleoptera, Staphylinidae) from the East Palearctic: I. (Sharp, 1874) and a new allied species.

There is insufficient information to identify most species of the myrmecophilous rove beetle genus . In this paper, after examining the type material, (Sharp, 1874) is redescribed in detail and its new allied species is described. We also observed the behavior of these two species in the field; the behavior was similar to that reported for (Märkel, 1842).

Fish diversity of a spring field in Hopong Town, Taunggyi District, Shan State, Myanmar (the Salween River Basin), with genetic comparisons to some "species endemic to Inle Lake".

Hopong, a small town in the Salween (Thanlwin) River Basin, Myanmar, is located 35 km northeast of Inle Lake, a famous ancient lake with numerous endemic fish species. We surveyed the fish fauna of a spring pond in Hopong in 2016, 2019 and 2020 and identified 25 species. Of these, seven, including and , had been considered endemic to Inle Lake and at least three species were genetically unique.

Morphological and molecular evidence reveals three new species of (Fagaceae) from Bidoup-Nui Ba National Park, Vietnam.

Three new species, Ngoc & Tagane, Ngoc & Yahara, and Ngoc & Binh are described from Bidoup-Nui Ba National Park, Central Highland of Vietnam. Morphological analyses and Maximum likelihood tree based on genome-wide SNPs support the distinction of those species from the previously known taxa in the region. The three new species are considered to be endemic to the Bidoup-Nui Ba National Park and the preliminary conservation status for each species is evaluated as Critically Endangered.

A parasitic insect on a parasitic plant: a new species of the genus Takahashi (Hemiptera, Coccomorpha, Pseudococcidae) from Ishigaki Island, Japan.

A new species of the genus Takahashi (Hemiptera, Coccomorpha, Pseudococcidae) collected from the holoparasitic plant J. R. & G.

Database of summer fish fauna sampled in river estuaries in the southern part of the Boso Peninsula, Japan.

Background: River estuaries provide various ecosystem services, such as nutrient circulation, climate change mitigation, habitats and coastal defence. Information on the various taxonomic groups is collected from large-scale estuaries; however, few studies have focused on river estuaries of small and medium-sized rivers. In particular, information on river estuaries in peninsulas and islands with complex marine environments is lacking.

Taxonomic study of and its allies, with description of a new species of (Hymenoptera, Chrysididae, Amiseginae).

Three related genera of Asian Amiseginae, Krombein, Kurzenko & Lelej, and Terayama are revised. The male of Kurzenko & Lelej and the female of Terayama are newly described. The following new synonymies are proposed: Krombein, 1984 = Krombein, 1984, ; Kurzenko & Lelej, 1994 = Nagase, 1995, A new species of , is described based on a female from Thailand.

sp. nov. (Hymenoptera, Chrysididae, Loboscelidiinae) found on an ant nest in Thailand.

is described from Thailand. It is the fifth species of the genus and second species from Thailand. A biological note on the species with its associated ants is provided.

, a new species of Lauraceae from Kaeng Krachan National Park, southwest Thailand.

A new species of Lauraceae, M.Z.Zhang, Yahara & Tagane, from Kaeng Krachan National Park, Phetchaburi Province, southwestern Thailand, is described and illustrated.

Photo images, 3D/CT data and mtDNA of the freshwater mussels (Bivalvia: Unionidae) in the Kyushu and Ryukyu Islands, Japan, with SEM/EDS analysis of the shell.

Background: Freshwater mussels (Bivalvia: Unionidae), which are keystone species of freshwater ecosystems, are in global decline. In addition to ecological/genetic studies, morphological examinations are needed to help provide information for the development of additional freshwater mussel studies and eventually conservation efforts for freshwater ecosystems.The microscopic structure, which can be obtained by scanning electron microscopy (SEM) and elemental composition, which can be obtained with energy dispersive X-ray spectrometry (EDS), of mollusc shells are of interest to malacologists.

A taxonomic revision and molecular phylogeny of the eastern Palearctic species of the genera Kieffer and Kovalev (Diptera, Cecidomyiidae, Asphondyliini), with descriptions of five new species of from Japan.

The genus (Diptera, Cecidomyiidae, Asphondyliini, Schizomyiina) was erected by Kovalev (1964) based on the presence of constrictions on the cylindrical male flagellomeres. In the present study, we examine the morphological features of and and found that the male flagellomeres are constricted also in , the type species of . Because no further characters clearly separating from were observed, we synonymize under .

A new genus and species of Brontinae from Borneo (Coleoptera, Silvanidae).

A new silvanid genus is described based on specimens collected from Malaysian Borneo. A new species, , is described herein. Digitiform sensilla on the apical maxillary palpomere is reported in Silvanidae for the first time.