Zootaxa

**The cumacean family Leuconidae in the south-west Atlantic deep-sea basins obtained during the cruise DIVA 3 with RV Meteor (cruise No. M 79/1)**

UTE MÜHLENHARDT-SIEGEL — Thu, 30 Oct 2025 00:00:00 +1300

The Leuconidae (Cumacea) from the expedition DIVA 3 with RV Meteor to the Argentine and Brazil Basins (July to August 2009) were analysed, 8 new species and 1 new genus are described. These species are Bytholeucon paucidentatis sp. nov., Eudorella paramonodon sp. nov., Eudorellopsis dentata sp. nov., Leucon (Alytoleucon) argentinensis n.sp., Leucon (Crymoleucon) pinocchio sp. nov., Leucon (Leucon) brevirostratis sp. nov., Leucon (L.) paravasilei sp. nov., and Remyleucon hyalorostris gen. nov. sp. nov. Only 1 leuconid species, Leucon (C.) cf. lufupa, was already known from the Angola and Cape Basins.

**Five new species of Radomaniola Szarowska, 2006 (Truncatelloidea: Hydrobiidae)**

Thu, 30 Oct 2025 00:00:00 +1300

The genus Radomaniola Szarowska, 2006 (Horatiinae) groups minute gastropods inhabiting mostly springs, but also streams, rivers and subterranean waters in the Balkans, and which are widely spread in the former Yugoslavia, but were recorded also from Italy and Greece. Thirty-six valid species distinguished so far still represent only a part of the real biodiversity within the genus. Wide morphological variability forces the application of molecular characters in the taxonomy of the genus. Cytochrome c oxidase subunit I (COI) is the most widely used marker, appropriate for genus level identification, but not sufficient for the reconstruction of deeper nodes in the phylogeny. Our materials were collected for more than 20 years: from 2001 to 2022, at 101 localities in Croatia, Bosnia and Herzegovina, Montenegro, Albania, and Greece, with 67 of them not previously studied. Many COI haplotypes have not been recorded previously. In the present paper we describe five molecularly well supported species new to science, found at 21 localities in Croatia, Bosnia and Herzegovina, and Greece, considering both morphological and molecular (COI) data. The shells, female reproductive organs and penes are described and illustrated. Wide intraspecies variability, coupled with slight differences between the taxa, were observed in the shells, penes, and female reproductive organs, suggesting morphostatic evolution in the genus Radomaniola.

Swarming microbombyliids (Diptera, Mythicomyiidae) in amber from Ukraine: a new species and a new synonymy

EVGENY E. PERKOVSKY, HAORAN SUN, ALISA A. PERKOVSKY, THOMAS PAPE — Thu, 30 Oct 2025 00:00:00 +1300

Mythenteles evenhuisi sp. nov. is described from Rovno amber and compared with Mythenteles baltica Evenhuis, 2002. The discovery of fourteen males of Mythenteles Hall & Evenhuis within a single Rovno amber piece, along with six specimens of Glabellula Bezzi in another amber piece, strongly suggests that swarming behavior in Mythicomyiidae occurred as frequently in Eocene forest as observed in extant European populations. Glabellula aggregata Evenhuis, 2013 is considered a senior synonym of Glabellula perkovskyi Evenhuis, 2013 syn. nov. Localities of findings of all Eocene microbombyliids known from Ukraine and Denmark are indicated. The higher frequency of Mythicomyiidae in Rovno amber as compared to Baltic amber may indicate a greater prevalence of open, dry habitats in the Rovno amber forest.

**Looks can deceive: a troglomorphic but not troglobitic Attaleachernes species (Pseudoscorpiones: Chernetidae) from the eastern Amazon**

LUCIANA LAIBE, GUILHERME C. PRADO, RODRIGO L. FERREIRA — Thu, 30 Oct 2025 00:00:00 +1300

A new species of pseudoscorpion, Attaleachernes spelaeus sp. nov., is described, featuring detailed morphological characteristics, diagnostic traits, and illustrations that distinguish it from its congener. Additionally, a comparative discussion on the genus is provided, including a description of the species’ habitat. This new species represents the second recorded occurrence of the genus Attaleachernes. Recommendations are proposed for future research on A. spelaeus sp. nov., highlighting the need for further exploration of its characteristics and ecology.

**On the genus Paccius (Araneae, Trachelidae) in Madagascar: two new species, redescriptions, and a key to the species**

BROGAN L. PETT, JAIME ESCOBAR-TOLEDO, ELODIE FERREIRA — Thu, 30 Oct 2025 00:00:00 +1300

The Malagasy and Seychellois endemic dark sac spider genus Paccius Simon, 1898 is a putatively highly diverse radiation of trachelids that is currently very poorly known. Here, we describe two new species based on recently collected specimens in Madagascar: P. haddadi sp. nov., from the dry forests of the north-west, and P. mahimborondro sp. nov., from rainforests in the far north. We also redescribe P. madagascariensis (Simon, 1889) and P. mucronatus Simon, 1898, species previously described without illustrations, and provide the first key to the species of the genus.

Two new species of the genus Limois (Hemiptera: Fulgoromorpha: Fulgoridae) from China

WENQIAN WANG, JÉRÔME CONSTANT, JUN CHEN, YAN ZHENG, DAOZHENG QIN — Thu, 30 Oct 2025 00:00:00 +1300

Two new species of the genus Limois Stål, 1863, L. balteatus sp. nov. and L. yingjingensis sp. nov. from China are described based on the holotype and paratypes. The illustrations of male and female genitalia of the new species are provided. The species group division of the genus is discussed. The check-list and a key to all species of this genus are also provided.

**Rediscovery of the enigmatic genus Pilia Simon, 1902 (Araneae: Salticidae) with the description of a new species from India**

JOHN T.D. CALEB, AJITH PADIYAR, A.P.C. ABHIJITH, JITHESH PAI — Thu, 30 Oct 2025 00:00:00 +1300

The jumping spider genus Pilia Simon, 1902, previously known from only three species and exclusively from male specimens, has remained taxonomically enigmatic due to limited material and uncertain placement within Salticidae. During recent field surveys in Chickmagaluru, Karnataka, we rediscovered the genus in the wild after 123 years and collected both male and female specimens, leading to the description of a new species, Pilia malenadu sp. nov. This work represents the first documented female of the genus. Natural history observations are presented for the new species. Pilia albicoma Szombathy, 1915 is transferred to Simaetha Thorell, 1881 to become Simaetha albicoma (Szombathy, 1915) comb. nov. The updated distribution of the genus Pilia and new insights into its taxonomy, and phylogenetic context within Salticidae are provided.

**A new species of genus Euxestocis Miyatake, 1954 (Coleoptera, Ciidae) from Yunnan Province, China**

NAN LI, BEN-YONG MAO, JI-SHAN XU — Thu, 30 Oct 2025 00:00:00 +1300

There is a new species named Euxestocis menglaensis sp. nov. is described and illustrated from Yunnan Province, China. Key to all described species of the genus Euxestocis is updated. We also provide habitat and host fungi photos of the new species.

**Replacement name for a junior primary homonym in Empis Linnaeus (Diptera: Empididae)**

BRADLEY J. SINCLAIR, SCOTT E. BROOKS, JEFFREY M. CUMMING — Thu, 30 Oct 2025 00:00:00 +1300

N/A

**A new species of the genus Xya Latreille, 1809 from Hainan, China (Orthoptera, Trydctyloidea, Trydactylidae)**

CHENG-QUAN CAO, SHEN-ZHI CHEN, ZHAN YIN — Thu, 30 Oct 2025 00:00:00 +1300

N/A