Zootaxa

**One new species of the genus Sinocyrtaspis Liu, 2000 (Orthoptera: Tettigoniidae: Meconematinae) from Hubei, China**

2026-04-01T12:51:25+13:00

**An eyeless new species of Monoblemma Gertsch, 1941 (Araneae: Tetrablemmidae) from Venezuela, with a new record of the single-eyed Monoblemma unicum Gertsch, 1941 from the Dominican Republic**

2026-04-01T12:52:14+13:00

An annotated checklist of Ciidae (Coleoptera: Tenebrionoidea) of Ukraine

2026-04-01T12:53:27+13:00

The article provides an overview of Ukrainian Ciidae (Coleoptera: Tenebrionoidea). Based on the literature review and new data, 53 species from 12 genera (all from the subfamily Ciinae) are presented. Data on the trophic relationships of Ciidae with tinder fungi are provided. It is proposed to return the species Orthocis reflexicollis to the genus Cis based on the morphological similarity of the imago and larvae with this genus. For the first time in Europe and Ukraine, 2 species are noted: Cis seriaticribratus and Hadreule blaisdelli. Also, C. seriaticribratus is noted for the first time as a pest of mycological herbariums.

**A new species of Amiculucestus (Eucestoda: Lecanicephalidea: Eniochobothriidae) from the cownose ray, Rhinoptera bonasus (Myliobatiformes: Rhinopteridae) in the Western Atlantic**

2026-04-01T12:54:21+13:00

This study describes, on morphological and molecular grounds, Amiculucestus bonasus sp. nov., a parasite of the cownose ray Rhinoptera bonasus from the Western Atlantic. The new species is assigned to Amiculucestus Jensen & Caira, 2022 based on the presence of key diagnostic features such as protandry, presence of an inverted J-shaped cirrus sac, and absence of a seminal receptacle. It can be distinguished from all four other valid species of this genus (i.e., A. calli Jensen & Caira, 2022; A. australiensis Jensen & Caira, 2022; A. herzogae Jensen & Caira, 2022; and A. penghuensis Jensen & Caira, 2022) by the width of the terminal female-mature proglottid, gravid proglottid and ovary, and the combination of other morphometric attributes, such as number of testes, width of the terminal male-mature proglottid and posterior-most immature proglottid, and length of the gravid strobila and ovarian lobe. Phylogenetic analyses of the D1–D3 region of the 28S rDNA gene provide molecular evidence supporting its status as a new species of Amiculucestus. Amiculucestus bonasus sp. nov. is the fifth valid species of this genus and the first identified in the Southwestern Atlantic.

A review of the Plecoptera of the Xinjiang Uygur Autonomous Region, China

2026-04-01T12:55:14+13:00

Twenty-four species of stoneflies from the Xinjiang Uygur Autonomous Region in northwestern China are reviewed. Pteronarcys sachalina Klapálek, 1908 is recorded from the region for the first time, also representing the first record of this genus and Pteronarcyidae. The first larva descriptions of Filchneria tianshana Chen & Ma, 2022, F. urumqiensis Chen & Ma, 2021, and Isocapnia apicispina Chen & Du, 2017 are provided. Supplementary descriptions of the aedeagus of F. tianshana and F. urumqiensis are also included. The aedeagus of P. sachalina is likewise described for the first time. Illustrations and color photographs are provided for each species to facilitate their identification.

**Six new species of Pandercetes L. Koch, 1875 (Araneae: Sparassidae: Heteropodinae) from Southeast Asia**

2026-04-01T12:56:30+13:00

Six new species, Pandercetes batak sp. nov. (♂♀), P. barisanensis sp. nov. (♀; both from Sumatra, Indonesia), P. cheemai sp. nov. (♂♀; Laos), P. mindanaoensis sp. nov. (♂; Philippines, Mindanao), P. jaegeri sp. nov. (♀) and P. bataanensis sp. nov. (♀; both from Philippines, Luzon) are described. The genus is recorded from Laos, Philippines and Sumatra for the first time. The discovery of P. cheemai sp. nov. represents the northernmost record for the genus range. Genus Pandercetes is re-diagnosed. For two species, P. longipes Thorell, 1881 and P. peronianus (Walckenaer, 1837), the distribution data listed in the World Spider Catalog was found to be inaccurate and has now been revised. Detailed descriptions, digital photographs and a distributional map of all new species are provided.

Neotype designation and redescription of Mesacanthion armatum Timm, 1961 (Nematoda, Enoplida) along with an updated taxonomic key to the species of Mesacanthion (Filipjev, 1927) De Coninck & Schuurmans Stekhoven, 1933

2026-04-01T12:57:22+13:00

Neotype of Mesacanthion armatum is designated and the redescription is elaborated with novel morphological feature, along with comparative study of types descriptions, with the help of new specimens collected in the northeast coast of India. Despite of the dissimilarities between the original description and the present study, morphometrics along with morphological accounts were analysed. Relevance of those characters was then evaluated for confirmation to consider them as the same species. Furthermore, an updated species key of Mesacanthion is presented, along with discussion of morphological traits.

On Lamiinae (Cerambycidae, Coleoptera) from the Neotropical region: new species and taxonomic notes

2026-04-01T12:47:10+13:00

Two new species are described from Mexico: Colombicallia copei sp. nov. (Calliini); and Estoloides poggii sp. nov. (Desmiphorini). A key to species of Colombicallia Galileo & Martins, 1992 is provided. The holotype of Drycothaea guatemalana Breuning, 1950 is illustrated for the first time, and this species, together with D. mexicana Breuning, 1974, are synonymized with D. sallei Thomson, 1868. Trichestola Breuning, 1950 is synonymized with Drycothaea Thomson, 1868. Notes on Paradrycothaea Galileo & Martins, 2010, together with an updated key to species, are provided. The male of Eupogonius nayeliae Santos-Silva, Wappes & Galileo is illustrated for the first time and compared with the female holotype. Notes on Estoloides dthomasi Santos-Silva, Wappes & Galileo, 2018, and a new Mexican state record for Trichalphus albidus (LeConte, 1852) are provided. Additionally, corrections in two previously published works are indicated.

A review of Chinese Xenidae (Insecta: Strepsiptera) with the description of two new record genera and one new species

2026-04-01T12:48:03+13:00

Xenidae represents the third largest family within the order Strepsiptera, comprising parasites of various wasps and hornets. In this study, we update the checklist of Chinese Xenidae by reporting two newly recorded genera, Nipponoxenos Kifune & Maeta, 1975 and Sphecixenos Benda, Pohl, Nakase, Beutel & Straka, 2022 in China. Additionally, three newly recorded species and one new species are described herein. The known Chinese Xenidae fauna now encompasses 13 species across six genera. The male cephalothecae of two species are described and illustrated for the first time, and in addition, we present the first molecular barcode records for Sphecixenos. These new morphological, molecular, and distributional data offer valuable insights into the diversity of Xenidae in Asia.

**Two new species of the genus Parareicheia Jeannel, 1957 (Coleoptera: Carabidae: Scaritinae: Clivinini: Reicheiina) from Portugal, with faunistic notes on Anillini**

2026-04-01T12:48:59+13:00

Two new microphtalmic beetle species of the genus Parareicheia Jeannel, 1957, from Portugal are described: Parareicheia renei sp. nov. and Parareicheia barrosi sp. nov. These endogean species are diagnosed and compared with closely related endemic species from the Iberian Peninsula. The external morphology and male genitalia of both new species, as well as the female genitalia of P. barrosi sp. nov., are illustrated, and information on species’ ecology is provided. A dichotomous key for the identification of Parareicheia species is also presented. New faunistic records of Geocharis moscatelus Serrano & Aguiar, 2001 and Geocharis submersus Serrano & Aguiar, 2003 are additionally reported.

**A new species of the velvetfish genus Cocotropus (Synanceiidae: Aploactininae) from the Philippines**

2026-04-01T12:49:47+13:00

Cocotropus kanding sp. nov. (Synanceiidae: Aploactininae) is described on the basis of a single specimen (MNHN-IC 2025-0487, 42.4 mm standard length: SL) collected north of Panay Island, the Philippines, western Pacific Ocean. The new species is characterized by the following combination of characters: dorsal-fin rays XII, 10; anal-fin rays II, 6; pectoral-fin rays 13; segmented lower caudal-fin rays 6; total vertebrae 26; lacrimal spine short, its length 81.4% of upper-jaw length; pectoral fin short, its posterior tip not reaching anus; caudal fin short, its length 25.4% of SL; no papillae on posterior portion of upper jaw; 7 pairs of papillae on ventral surface of lower jaw; interneural space between 7th and 8th vertebrae lacking dorsal-fin spine proximal pterygiophores; bases of 1st–4th dorsal-fin spines anterior to 3rd neural spine; 5 preopercular spines; vomerine teeth absent; 2nd mandibular pores separated; body of preserved specimen with irregular dark smudges.

**Description of a new species of Micreriodes Yoshimoto, 1962 (Hymenoptera: Figitidae: Eucoilinae) from the Atlantic Forest in the State of Paraná, Brazil**

2026-04-01T12:50:34+13:00

A new species of the genus Micreriodes Yoshimoto is described and illustrated in the fauna of the State of Paraná, Brazil: Micreriodes lautus sp. nov. The morphological differences with Micreriodes guamensis are also analyzed. This is the first time any specimen of the genus has ever been identified at the species level outside the Pacific region.