Zootaxa

**First record of the genus Uroxys Westwood, 1842 in Martinique (Lesser Antilles), with descriptions of two new species from cloud forests (Coleoptera: Scarabaeidae: Scarabaeinae)**

2026-02-10T11:31:31+13:00

Two new species of Uroxys Westwood, 1842 are described from Martinique: Uroxys martinicensis Huchet, sp. nov., and Uroxys aphanes Huchet, sp. nov. These species represent the first documented presence of Uroxys in Martinique. Both new species are flightless due to their brachypterous condition (reduced metathoracic wings), a condition that highlights the role of the cloud forests of the Lesser Antilles as centers of endemism and attests to the long-term isolation of some insular lineages of Scarabaeinae. These new taxa are compared with the three other Uroxys species currently known from the Lesser Antilles, namely U. vincentiae Arrow, 1903, U. productus Arrow, 1933, and U. trinitatis Arrow, 1933, and diagnostic characters are provided. An identification key to the Uroxys species from the Lesser Antilles is provided, along with two distribution maps: one detailing the Martinican records of the new taxa, and another summarizing the distribution of the genus across the archipelago.

**A new species of the Ololygon catharinae group from the Brazilian Cerrado (Anura, Hylidae, Scinaxini)**

2026-02-10T11:32:24+13:00

We describe a new species of the Ololygon catharinae group from the Cerrado biome, in the state of Minas Gerais, Brazil. Ololygon paracatu sp. nov. is morphologically similar to O. goya and O. skaios, although in phylogenetic analyses, it is recovered as the poorly supported sister taxon of O. pombali. It is distinguished from other species of the O. catharinae group by having a canthus rostralis marked and curved; subovoid snout in dorsal view and protruding in profile; inverted triangle shaped interocular blotch, exceeding the posterior margin of the eyes; inguinal region and hidden areas of thighs with dark brown irregular blotches on a pale yellow background in life; and advertisement call composed of 3–5 pulsed notes and dominant frequency of 2.5–3.5 kHz. Ololygon paracatu sp. nov. inhabits gallery forests associated with streams in the Cerrado biome.

**The newly found imagoes of Ochernova tshernovae (Kazlauskas, 1963) from China validating its position in the family (Ephemeroptera: Neoephemeridae)**

2026-02-10T11:33:20+13:00

Previously, the male imago of the mayfly Ochernova tshernovae (Kazlauskas, 1963) was not reported. The nymphs and adults of it found in northwestern China in 2025 not only show that this species has a vaster distribution than previously known but also demonstrate it is close to the European species Leucorhoenanthus maxima (Joly, 1871). Both of them share smaller posterolateral projections of abdominal terga in nymphs and smaller compound eyes in males than other genera. Biogeographically, this new finding illustrates that three neoephemerid genera of China (Ochernova, Potamanthellus, and Pulchephemera) are connected. Therefore, both its nymphs and adults are described in detail herein, and the observed biology of it is also presented.

Description of a new subterranean species of Plutomurus (Collembola: Tomoceridae) from the Nanatsuoguchi Mine, central Honshu, Japan with notes on Plutomurus yamatensis

2026-02-10T11:34:12+13:00

A new species of Plutomurus Yosii, 1956, P. asuwaensis sp. nov., from the Nanatsuoguchi Mine in Fukui, central Honshu, Japan, is described and illustrated. The new species is clearly distinguished from all other congeners by the combination of following characters: absence of eyes, number of prelabral chaetae, and shape of the claws. Morphological observation of topotypes of P. yamatensis Yosii, 1956 from Gansuiji-Shonyudo Cave showed that the number of prelabral chaetae differs from its previous description. Phylogenetic positions of the new species and P. yamatensis are estimated within the genus based on the sequences of the mitochondrial cytochrome c oxidase subunit I. The obtained phylogeny indicates that P. asuwaensis sp. nov. belongs to a unique lineage, and thus corroborates its distinct species status revealed by morphological examination.

Anterhynchium mellyi (de Saussure, 1852) (Hymenoptera, Vespidae): lectotypification, redescription, and a new synonymy

2026-02-10T11:35:02+13:00

To clarify correct identification of the potter wasp Anterhynchium mellyi (de Saussure, 1852), this species is redescribed and illustrated, its lectotype is designated and a new synonym, A. punctatum Nguyen, 2015, syn. nov., is proposed.

**New data on the genus Opilio Herbst, 1798 (Arachnida, Opiliones) in Azerbaijan Republic including a description of two new species**

2026-02-10T11:36:00+13:00

Two new opilionid species of the family Phalangiidae, Opilio zuvandicus sp. nov. and Opilio zangezuricus sp. nov. are diagnosed, illustrated and described on the basis of morphological methods from the territory of the Lerik and Kelbajar discticts of the Azerbaijan Republic. The described species are characterized by large body sizes and long thin legs, wide wings in the distal part of the penis.

Magnischistura khaokrajom, a new genus and species of loach (Cypriniformes: Nemacheilidae) from the Pachi River drainage in Western Thailand

2026-02-10T11:36:44+13:00

Magnischistura khaokrajom, new genus and species, is described from a small tributary of the Pachi River in the Suan Phueng region of the Tenasserim Hills in western Thailand. Magnischistura shares with several recently described genera of nemacheilids a globulous suborbital flap with tubercles at its extremity and a highly modified pectoral fin on mature males, but molecular data failed to support a close relationship to any of them. Morphologically, the new genus is distinguished by the presence of a suborbital flap in the female. The highly modified pectoral fin of males is hypothesized to facilitate juxtaposition with a female during spawning.

**Erratum: KAZUHIRO TAKAHASHI & MAHADIMENAKBAR MOHAMED DAWOOD (2025) Notes on the genus Asiosilis Wittmer, 1977 (Coleoptera, Cantharidae, Silinae) in northern Borneo. Zootaxa, 5737 (1): 67–95.**

2026-02-10T11:37:41+13:00