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The mukariine species Mohunia biguttata (Wang & Li, 2003) had been transferred to the subfamily Typhlocybinae, but its tribal placement and generic status remained uncertain. In t…

Nebria (Falcinebria) reflexa Bates and its relatives are among the most diverse groups of the genus in Japan, but their diversity has not yet been fully elucidated. In this study,…

Rodentia is the most widely distributed, diverse, and numerous order of the class Mammalia. Nevertheless, rodents are poorly studied in terms of their conservation compared to oth…

Four new species of Strepsiptera from the genus Deltoxenos Benda, Pohl, Nakase, Beutel & Straka (Xenidae) are described based on the female cephalothoraces. These include the firs…

Indomasonaphis Verma, 1971 is a small genus primarily distributed in the southern Himalayan region. The genus is morphologically characterized by a concave frons; sparse, long, th…

Fourteen species of Aprostocetus Westwood from China are reviewed, including one new species, A. maculosus sp. nov., and new country records for four species: A. viridinitens Grah…

Pilumnus is a highly speciose brachyuran crab genus distributed in tropical and temperate oceans. Previous systematic studies of the genus have revealed a high degree of uncertain…

A new genus, Serralanguria gen. nov. (type species: Serralanguria sinensis sp. nov.), of the tribe Languriini from Asia is described and illustrated. This genus is characterized b…

Aquatic coleopteran and hemipteran insects primarily inhabit lentic waters, many of which are at risk of extinction due to development, agriculture, and invasive alien species. En…

In many snakes, the color pattern of neonates differs from that of adults, often superficially resembling a separate species. This phenomenon is known as ontogenetic color pattern…

The status of the Japanese fauna of the family Chrysomelidae is reviewed from the viewpoints of systematics and zoogeography based on a new systematic catalog in which 648 species…

Five subfamilies within Chrysomelidae (leaf beetles) have larvae that retain their feces as a coat or armor which serves for thermoregulation, camouflage, or barrier to enemies. T…

Female genital diversity and co-evolution of female and male genitalia have been increasingly unveiled, particularly through recent studies. These findings highlight the importanc…

The intromittent part – the median lobe – of the male copulatory organ – the aedeagus – of beetles is strongly sclerotised and so could give the impression of being just a rigid t…

Most Taiwanese species of Galerucinae s. str. have been revised taxonomically in recent years. In Taiwan, reduction of hindwings occurs in 37 species in eight genera. A citizen sc…

Classification of the subgenus Apterosoma Motschulsky of the genus Chrysolina is fraught with several problems. In particular, the northern Japanese Apterosoma can be separated in…

Research on Chrysomelidae 10 Editorial

Seven species of the genus Eversmannia Staudinger, 1871 are recognized from China. Among them, three species are described as new species: E. atromarginata sp. nov., E. spiralis s…

Nearly seven decades have passed since the first records of helminths in rodents in Slovakia were published. Thereafter, the number of documented helminth species within the terri…

The lace bugs (Hemiptera, Heteroptera, Tingidae) from the Ogasawara Islands, Japan, which are known as “Oriental Galapagos”, are taxonomically revised. The following eight species…

Blattella germanica (Linnaeus, 1767), a member of the Blattellidae family within the order Blattodea, is a significant global sanitary pest. Several species within the genus Blatt…

This study reviewed the genus Erechthias Meyrick, 1880 on the Ogasawara Islands, Japan with regards to eight recognized species, two of which were known (E. itoi Moriuti & Kadohar…

A taxonomic reassessment of Pseudophoxinus populations in the upper Jordan River basin has revealed that specimens previously identified as Pseudophoxinus kervillei actually repre…

Basic knowledge of species distribution and diversity is crucial for broader studies of ecology, evolutionary biology, and conservation. However, a basic inventory of species dive…

The last immature stage of the New World treehopper Campylocentrus nigris Funkhouser, 1930 is described for the first time. Detailed figures of the adult are also provided, as wel…

Saxicola is a genus of insectivorous birds widely distributed across Eurasia and Africa. Their mitochondrial genomes (mitogenomes), classification, phylogeny, and biogeography are…

In this study, the moth genus Clethrorasa Hampson, 1908 is reviewed, and a new genus, Minclethrorasa gen. nov. with its type species, M. chinensis sp. nov. are described from sout…

We describe a new genus and species of freshwater mussel, Ligodonta obscura gen. et sp. nov., using an integrative taxonomic approach consisting of morphological, genetic, biogeog…

Multiple factor analysis (MFA) is introduced as a diagnostic tool for taxonomy and discussed using examples from the herpetological literature. Its methodology and output are comp…

The fossil crown wasp †Tumidistephanus epimetheus sp. nov. is described based on a well-preserved male specimen embedded in mid-Cretaceous Burmese amber. This discovery adds to th…

Phylum Annelida are ubiquitous metazoans found in almost every terrestrial and aquatic habitat on Earth. Historically, taxonomic studies on the phylum have been focused largely on…

Fish eggs and larval stages are essential components of marine ecosystems and play important roles in sustaining marine food webs. However, the egg and larval stages often lack di…

Scale insects are significant pests impacting agriculture, forestry, and ornamental plants. They play a dual role in ecosystems, serving as a food source for insects like bees, pr…

Two new species belonging to the genera Eupachyrrhynchus Heller, 1912 and Metapocyrtus Heller, 1912—E. joybelmonteae sp. nov. and M. (M.) daraitanensis sp. nov.—are described and …

A taxonomic review and redescription of the genus Ectinogramma Thomson, 1864 are presented. Spinogramma Breuning, 1947 is proposed as a junior synonym of Ectinogramma Thomson, 186…

A new genus and two new species of Empoascini from China are depicted in detail in this study: Singulus Yao & Yu, gen. nov., with a new species Singulus furcatus Yao & Yu, sp. nov…

The genus Pachyrhynchus comprises a group of entimine weevils with diverse body coloration, endemic to the islands of Southeast Asia, with the highest diversity of species found i…

The brackish-water crabs of the genus Ptychognathus Stimpson, 1858, currently the most diverse genus within the family Varunidae, typically inhabit estuaries or seashores influenc…

Afropisa sanctaehelenae (Chace, 1966) was originally described from three specimens collected from Saint Helena Island, South Atlantic, and assigned to Pisa Leach, 1814. It is a p…

The Indo-Pacific lizardfish Synodus autumnus sp. nov. (Aulopiformes, Synodontidae) is morphologically distinct from all other nominal species of Synodus, and is described as new. …

Dichocrocis frenatalis Lederer, 1863, the little-known type species of the polyphyletic genus Dichocrocis, was discovered in the Ryukyu Islands, Japan. We provide a redescription …

A new genus, Cyclomacula Qiao & Wang, gen. nov., is established to accommodate a new species and three new combinations from China: C. medogensis Qiao & Wang, sp. nov., C. glaucin…

Amphicercidus Oestlund, 1923 is distinguished from other aphid genera by a body in life heavily covered with white wax powder, antennal segment III rather long and with numerous s…

The family Ostreidae (Mollusca, Bivalvia) is an important component of marine ecosystems. The unique location and marine environment of Hainan Island provide diverse habitats for …

The 14 species of Terrilimosina Roháček now known from China are reviewed and keyed, including three new species (T. bicruris sp. nov., T. dentata sp. nov., and T. digitata sp. no…

Lake Victoria is home to a unique and taxonomically understudied species flock of endemic haplochromine cichlid fishes, with many morphologically specialized trophic groups and ma…

Two new species of the genus Narynia Martynova from China are described: Narynia alxaica sp. nov. from the western Inner Mongolia Autonomous Region, northern China and Narynia rit…

Mukaria sakaeratensis Piraonapicha & Chomphuphuang, sp. nov. is described based on male and female specimens recently collected in Nakhon Ratchasima, Thailand. The new species is …

The Muricanthus radix/ambiguus/nigritus complex includes species with a great diversity of shell shapes and shared habitats in various regions, which has raised questions and doub…

The study of biodiversity and ecosystems must be based on detailed knowledge of animal and plant organisms. European strategies for the protection of biodiversity and the restorat…