Zootaxa

A new species and new records of Scathophagidae (Diptera) from high-altitude wetlands in South Korea, with an assessment of DNA barcoding utility

SANGJIN HAN — 2026-05-12

Scathophagidae (Diptera: Calyptratae) are among the most diverse fly families in cool, montane habitats, yet its Korean fauna is still incompletely documented. During surveys of high-altitude wetlands (> 974 m above sea level) on Mt Jirisan, we collected two species of Cordilura (Fallén, 1810), a previously unrecorded species in Korea, Cordilura monochroma Ozerov & Krivosheina, 2014, a new species, Cordilura paludicola sp. nov., and two newly recorded genera Cleigastra and Megaphthalma, with Cleigastra (Cleigastra) flavipes (Fallén, 1819) and Megaphthalma pallida (Fallén, 1819). Diagnostic morphology, habitus photographs, and illustrations of the male and female terminalia are provided, together with a revised key to the species of South Korean Cordilura. We documented biological notes on C. paludicola sp. nov. and its phenotypic variation of female specimens. To assist in species identification, mitochondrial cytochrome c oxidase subunit I (COI) gene sequences were obtained from specimens to assess DNA barcoding. Species boundaries were assessed by analyzing the distribution of all pairwise genetic distances to visually identify the barcoding gap.

Contribution to the knowledge of the weevil tribe Rhamphini (Coleoptera: Curculionidae, Curculioninae) of India

ILYA A. ZABALUEV — 2026-05-12

A study on Rhamphini from different states of India was conducted during which one new subgenus and five new species new were discovered, as well as a number of species new to the Indian fauna. A new subgenus, Orchomizo Zabaluev subgen. nov. (type species Orchestes combinatus Zabaluev sp. nov.), of the genus Orchestes Illiger, 1798 is described based on the structure of the metatibiae, prosternum and mesosternum. Five new species are described from India as follows: Morimotonomizo chilikaensis Zabaluev sp. nov. (Odisha), Indodinorrhopalus surya Zabaluev sp. nov. (Goa), I. yaksha Zabaluev sp. nov. (Goa), Orchestes (Orchomizo) combinatus Zabaluev sp. nov. (Odisha) and O. (Salius) asetosus Zabaluev sp. nov. (Goa). A new combination, Morimotonomizo freyi (Voss, 1958) comb. nov., is proposed. The following species are recorded for India for the first time: Rhamphus medvedevi Korotyaev, 1994, Morimotonomizo fasciatus Kojima, 1997, M. flacourtiae (Marshall, 1957), M. freyi (Voss, 1958) comb. nov., Indodinorrhopalus guttatus Morimoto & Miyakawa, 1996, Orchestes (s. str.) basirostris (Voss, 1953), and O. (Salius) parvidens (Voss, 1958). Images of the habitus, genitalia, and other morphological details are provided for most species for the first time.

Four new species of Fauveliopsidae (Annelida, Sedentaria) from the Gulf of Thailand

JINTANA PLATHONG — 2026-05-12

Four new species of Fauveliopsidae, Fauveliopsis pladang sp. nov., Laubieriopsis tantawan sp. nov., Riseriopsis chaba sp. nov., and R. plahmuk sp. nov., are described from the Gulf of Thailand from sediments at 50–80 m water depth. Fauveliopsis pladang sp. nov., can be distinguished from other species by having 41 chaetigers; anterior parapodia with two acicula chaetae per bundle; in median and posterior segments 1 aciculum and 1 capillary per bundle. Laubieriopsis tantawan sp. nov., differs from all other species in the genus by having 27–43 chaetigers, body annulate; 2 acicula per bundle in anterior parapodia; in median and posterior parapodia with 1 aciculum and 1 capillary per bundle. Riseriopsis chaba sp. nov., can be distinguished from other species by having 34 chaetigers; anterior parapodia with 2 acicula per bundle; median and posterior notopodia with one aciculum and one capillary per bundle; median neuropodia with 1 aciculum and 2 capillaries per bundle; posterior neuropodia with 1–2 acicula and 1 capillary per bundle. Riseriopsis plahmuk sp. nov., can be distinguished from other species by having 2–4 acicula per bundle along anterior segments; median segments with 1–2 acicula and 1–2 capillaries per bundle; and posterior parapodia with 1–6 acicula and 1–5 capillaries per bundle. Genetic data, sequencing of the cytochrome oxidase subunit I (COI) of L. tantawan sp. nov., and R. plahmuk sp. nov., are reported. Update keys for identifying species of Fauveliopsis, Laubieriopsis and Riseriopsis are also provided.

**Review of the genus Apolysis Loew, 1860 (Diptera: Bombyliidae: Apolysini) from Iran, with taxonomic notes on the pusilla species group**

BABAK GHARALI — 2026-05-12

Apolysis Loew is a speciose genus of bee flies (Bombyliidae) distributed throughout the Northern Hemisphere. The genus is reviewed in Iran based on the examination of type material of previously recorded species. The species Apolysis flavipes (Efflatoun, 1945) belonging to the pusilla species group, is redescribed and recorded from Iran for the first time. Apolysis szappanosi Papp, 2005, syn. nov. is found to be the conspecific with Apolysis pusilla (Paramonov), and also redescribed here. An identification key to the species of Apolysis known from Iran is provided, and the status of the genus Dagestania Paramonov is briefly discussed.

**Eggs of six East Palearctic Suwallia Ricker, 1943 species (Plecoptera, Chloroperlidae)**

VALENTINA A. TESLENKO — 2026-05-12

Eggs of six East Palearctic Suwallia Ricker, 1943 species are examined, illustrated, and described using scanning electron microscopy images for the first time. It is suggested that collar morphology characters and chorion punctuations may be considered potential diagnostic features for Suwallia eggs. Keys for their identification are proposed.

**A revision of the genus Robsonomyia Matile & Vockeroth, 1980 of the Keroplatidae (Diptera, Sciaroidea)**

TOYOHEI SAIGUSA — 2026-05-12

The genus Robsonomyia Matile & Vockeroth, 1980 of the family Keroplatidae (Sciaroidea) is revised, with three new species described from the eastern Palaearctic Region. Two known species, Robsonomyia reducta Matile & Vockeroth, 1980 including the female, and Robsonomyia sciaraeformis (Okada, 1939) are redescribed. Revised generic characters, a key to extant species and short notes on morphological characters and geographical distributions are given.

**Taxonomic study of the genus Caryanda Stål, 1878 (Orthoptera: Acrididae) from Thailand**

PATTARAWICH DAWWRUENG — 2026-05-12

Until now only two species of the genus Caryanda Stål, 1878 were reported from Thailand. Our study showed more diversity of this genus in the country. Two new species, C. eunigritibia sp. nov. and C. chloronota sp. nov., are described from northern Thailand and C. yunnana Zheng, 1981 is firstly recorded from this country. The species C. neoelegens Otte, 1995 is divided on four subspecies: C. n. neoelegens stat. nov., C. neoelegans zheminzhengi Storozhenko, 2021, stat. nov., C. neoelegans doitungensis ssp. nov., and C. neoelegans nanensis ssp. nov. The hitherto unknown female of C. beybienkoi Storozhenko, 2005 is described. The new Caryanda neoelegens species group is proposed for C. neoelegens and C. beybienkoi. The characteristics of this species group are low sexual dimorphism, coloration of body green or bright green with shining black and white markings on head and pronotum in both sexes, tegmina bicolor, male epiphallus with outer lophi larger than inner lophi, outer lophi always broader than long in anterior view, and apical valves of penis usually short. Keys to Thai species of Caryanda and to subspecies of C. neoelegens are given.

**Taxonomic revision of the Psylliodes picipes species group (Coleoptera: Chrysomelidae: Galerucinae) with description of a new species from Central Apennines**

PAOLA D’ALESSANDRO — 2026-05-12

The Central Apennines host a taxonomically complex scenario within the genus Psylliodes. Building on previous molecular evidence, we conducted a detailed morphological and morphometric investigation of Psylliodes biondii, P. picipes, and P. springeri to clarify the taxonomic status of the Maiella population previously attributed to P. biondii. Our results support the description of Psylliodes caroli sp. nov., excluding the hypothesis that the Maiella population represents a disjunct population of P. picipes. We provide a comprehensive assessment of the distinctiveness of each species within the Psylliodes picipes species group, and present a diagnostic key based on external morphological characters, as well as the median lobe of the aedeagus, and spermatheca.

The Hidden Dragon-Katydid: a new genus and species of predatory Listroscelidinae katydids (Orthoptera: Tettigoniidae) from Diamantina National Park, Northeastern Brazil

MARCOS FIANCO — 2026-05-12

Tettigoniidae is one of the most diverse families of Orthoptera, comprising more than 8,000 described species worldwide. Within it, Listroscelidinae is distinctive for its predatory habits, a rare condition among katydids. Members of this subfamily exhibit morphological adaptations associated with active predation, including robust mandibles and spined forelegs. In Brazil, Listroscelidinae are mainly known from the Atlantic Forest, while seasonally dry biomes such as the Caatinga remain poorly studied. Herein, we describe a new genus of predatory katydids from the Caatinga biome of northeastern Brazil based on detailed morphological examination. Draconatus Fianco gen. nov. is diagnosed by a combination of several characters, as the labrum white, short tegmina with yellowish veins contrasting against dark cells, and tibia II bearing a single dorsal spine. Comparative analysis reveals clear morphological differences from other Neotropical genera, including Cerberodon Perty, Listroscelis Serville, Monocerophora Walker, Venatorellus Mendes, Chamorro-Rengifo, Rafael & Carliella Karny particularly in head sculpture and coloration, labral proportions, tegminal condition, tibial armature, and female terminalia. Carliella is also considered as the senior synonym of Isocarliella Mello-Leitão syn. nov. and Macrometopon Bruner syn. nov. The new genus is endemic to the central Caatinga, highlighting the underestimated diversity of predatory katydids in xeric Brazilian biomes.

**A new species of Flexocerus Kuoh & Fang (Hemiptera: Cicadellidae: Idiocerinae) from China**

HUI ZHANG — 2026-05-12

A new leafhopper species, Flexocerus neoevodianus Zhang sp. nov., is described and illustrated from Guizhou, Hunan and Hainan Provinces, China. A checklist and key to species of the genus are provided.

**New records of the As Sareen Semaphore Gecko (Pristurus assareen, Gekkota: Sphaerodactylidae) provide novel insights into the distribution of this microendemic Critically Endangered species**

BERNAT BURRIEL-CARRANZA — 2026-05-12

**Erratum: JEAN-PAUL HAENNI & KAWTAR KETTANI (2026) The Bibionidae (Diptera) from Morocco, with description of four new species. Zootaxa, 5793 (2): 392–420.**

JEANPAUL HAENNI — 2026-05-12

Erratum: DANIEL OCHOA-VÁZQUEZ, JESÚS A. CRUZ-LÓPEZ, ROGELIO ROSAS-VALDEZ & ELIZABETH A. MARTÍNEZ-SALAZAR (2026) From the monotypic to the diverse: three new species of Diguetinus Roewer, 1912 (Opiliones, Eupnoi, Globipedidae) from Mexico. Zootaxa, 5799 (3): 521–547.

DANIEL OCHOAVÁZQUEZ — 2026-05-12