Zootaxa

**Revision of the cicada genus Tamasa Distant, 1905 with the description of twelve new species from Queensland (Cicadidae: Cicadinae: Tamasini)**

M.S. MOULDS — Mon, 29 Jun 2026 00:00:00 +1200

Twelve new species of Tamasa are described from Queensland, T. capensis sp. nov., T. dolabra sp. nov., T. imber sp. nov., T. ewarti sp. nov., T. gigas sp. nov., T. kirramae sp. nov., T. lanei sp. nov., T. lewisensis sp. nov., T. lindsayi sp. nov., T. pearsoni sp. nov., T. rentzi sp. nov. and T. timothyi sp. nov. A lectotype is designated for Tibicen kurandae Goding & Froggatt, 1904 and it is taken from synonymy with T. tristigma and treated as a distinct species. All 18 species are illustrated as close to live colour as possible, distinguishing features documented, and a key to males included. Distributions for all species are accurately documented for the first time. Discussion is provided on relationships and distributions.

Revision of the subfamily Callizygaeninae (Lepidoptera, Zygaenoidea, Zygaenidae)

SI-YAO HUANG, KIYOSHI HORIE, GÜNTER C. MÜLLER, GEOFF MARTIN, MARIANNE ESPELAND — Mon, 29 Jun 2026 00:00:00 +1200

The subfamily Callizygaeninae is revised. The genera Mydrothauma Butler, 1892 stat. rev. and Ancistroceron Semper, 1898 stat. rev. are restored from the synonyms of Callizygaena Felder, 1874 and recharacterised based on genitalia configuration of both sexes. The genus Chrysocaleopsis van Eecke, 1920 is synonymised with Mydrothauma (syn. nov.) rather than with Callizygaena. The genus Pteroceropsis Swinhoe, 1904 is synonymised with Ancistroceron (syn. nov.) rather than with Callizygaena. Callizygaena aurifasciata Hering, 1922 is synonymised with C. auratus auratus (Cramer, 1779) (syn. nov.). The taxon Callizygaena ada splendens Candèze, 1927 is raised to specific rank and transferred from Callizygaena to Mydrothauma, viz. M. splendens (Candèze, 1927) comb. & stat. nov. The following species are also transferred from Callizygaena to Mydrothauma: M. pangana (de Freina & Breithaupt, 2025) comb. nov., M. thomasihlei (de Freina & Breithaupt, 2026) comb. nov. and M. semperi (Druce, 1885) comb. rev. The taxa Mydrothauma ada jucunda Rothschild & Jordan, 1903 (syn. nov.), Lophosoma sarah Snellen, 1910 (syn. nov.) and Callizygaena defasciata Hering, 1928 (syn. nov.) are synonymised with Mydrothauma ada javana Rothschild & Jordan, 1903. Two new species of the genus Ancistroceron, A. hainanum Huang & Horie sp. nov. (Hainan Island, S China) and A. toshitsugui Huang & Horie sp. nov. (Nakhon Ratchasima, NE Thailand) are described. Callizygaena luzonensis (Semper, 1898) is transferred from Callizygaena to Ancistroceron, viz. A. luzonensis (Semper, 1898) comb. nov., resulting in the homonymy with the name Ancistroceron luzonensis Schultze, 1925, hence a new replacement name is proposed for the latter: Ancistroceron schultzei Huang & Horie nom. nov. The following species are also transferred from Callizygaena to Ancistroceron: A. unipuncta (Swinhoe, 1904) comb. nov., A. venusta (Jordan, 1912) comb. nov., A. flaviplaga (Hering, 1925) comb. nov. and A. amabilis (Jordan, 1907) comb. nov. Lectotypes are designated for Ancistroceron glaucon Semper, 1898, Pteroceropsis unipuncta Swinhoe, 1904, Callizygaena venusta Jordan, 1912 and Trypanophora luzonensis Semper, 1898. The genus Procotes Butler, 1876 is transferred from Procridinae to Callizygaeninae, with two new combinations proposed: P. albipuncta (Hampson, 1900) comb. nov. and P. flavipicta (Holloway, 2011) comb. nov., and a new species described from Nusa Tenggara Timur, Indonesia, viz. P. hollowayi Huang, Müller & Horie sp. nov. The genus Lamprochloe Hampson, 1900 is treated as a synonym of Procotes (syn. nov.) rather than of Callizygaena. A checklist of the subfamily Callizygaeninae is provided. Adults and genitalia of all the aforementioned taxa are illustrated.

fish-inBOLIVIA: An integrative and updated checklist of the introduced and native ichthyofauna

FERNANDO M. CARVAJAL-VALLEJOS, MABEL MALDONADO, SELVA V. MONTELLANO-ABASTO — Mon, 29 Jun 2026 00:00:00 +1200

This study presents the most comprehensive and updated checklist of fish species in Bolivia, integrating nearly two centuries of systematic literature (1855–2025) with physical records from the UMSS-Museo de Historia Natural Alcide d’Orbigny Fish Collection. The study identifies a total richness of 1,095 taxa, comprising 1,079 native and 16 introduced species, marking a significant advancement in the documentation of South American ichthyofauna. Taxonomically, the fauna spans 17 orders, 57 families, and 379 genera. The diversity is dominated by the orders Characiformes (431 spp.) and Siluriformes (407 spp.), with Loricariidae and Acestrorhamphidae emerging as the most species-rich families. Hydrographically, the Amazon basin exhibits the highest diversity with 943 species (including 15 introduced), followed by the De La Plata basin with 363 species (five introduced) and the endorheic Altiplano basin with 31 species (two introduced). A significant finding is the high degree of native faunal exclusivity in the Amazon, which contains 690 species recorded only in that basin; a number notably higher than the 120 recorded only for De La Plata. Conversely, the Altiplano, while lower in total richness, is characterized by an important number of restricted-range species corresponding to the genera Orestias and Trichomycterus. Hierarchical Cluster Analysis (HCA) validates these findings, confirming three well-defined primary clusters that mirror Bolivia’s major hydrological systems and their historical biogeographic isolation. The study also tracks 16 established non-native species introduced for aquaculture, fisheries, and the aquarium trade. Conservation assessments highlight that 43 species are currently listed in the Bolivian Red Book and 52 in the IUCN Red List. This synthesis addresses critical knowledge gaps and provides a vital baseline for ecological research, biogeographic modeling, and the sustainable management of Bolivia’s megadiverse but increasingly threatened aquatic ecosystems.

**Taxonomic review of the genus Lepidophloeus Thomas, 1984 (Coleoptera, Cucujoidea, Laemophloeidae), with the first key to Neotropical genera of Laemophloeinae**

MATHEUS BENTO, JOSÉ ALBERTINO RAFAEL — Mon, 29 Jun 2026 00:00:00 +1200

In this paper, the lined flat bark beetle genus Lepidophloeus Thomas (Coleoptera: Laemophloeidae) is taxonomically revised based on the analysis of type and additional material. New morphological and distributional data provide the basis for the reinterpretation of the specific limits between L. exquisitus (Grouvelle) and L. minusculus (Grouvelle), confirming their status as valid species. The known distribution of L. minusculus is considerably expanded, supporting the first record of the genus in South America. In addition, the genus and species are circumscribed and illustrated in detail using compound light-microscopy and scanning electron microscopy. Illustrated keys to the species of Lepidophloeus and to the Neotropical genera of Laemophloeinae are provided.

**Taxonomy of the southern Atlantic Forest mayfly Thraulodes marianoi Silva, Salles & Pinto, 2020 (Ephemeroptera: Leptophlebiidae): description of imagos, subimagos, and eggs**

BRUNA DAIANE KRUSCIELSKI PANTA, FREDERICO FALCÃO SALLES, ÂNGELO PARISE PINTO — Mon, 29 Jun 2026 00:00:00 +1200

Documenting rare species often relies on a limited number of specimens and, despite posing taxonomic challenges, has become increasingly important in the context of the current biodiversity crisis. This is the case for Thraulodes marianoi Silva, Salles & Pinto, 2020, a mayfly endemic to the Atlantic Forest and originally described from a single male collected in the Mananciais da Serra Protected Area, Pico do Marumbi State Park, state of Paraná, Brazil. Here, we expand the knowledge of this species, one of the least known mayflies in Brazil. The male is redescribed, incorporating previously unreported morphological characters, and the female, eggs, and subimagos of both sexes are described for the first time. With the discovery of the female, sexual dimorphism in coloration was identified: abdominal tergites III–V in females are not white as in males, but instead uniformly brown, while the forewings of subimagos of both sexes lack a dark brown basal half. These new data expand the species diagnosis and reduce gaps in the taxonomic and diversity knowledge of Ephemeroptera from the Atlantic Forest. Among the 32 species of Thraulodes reported from Brazil, this is the only one recorded from the state of Paraná.

**Integrative evidence resolves the taxonomic identity of the Yellow River softshell turtle previously assigned to Pelodiscus sinensis (Wiegmann, 1834)**

Mon, 29 Jun 2026 00:00:00 +1200

Softshell turtle populations from the Yellow River Basin have traditionally been assigned to Pelodiscus sinensis, but their taxonomic identity remained uncertain. Integrating evidence from nuclear SNPs, complete mitochondrial genomes, and data from external morphology and osteology, we reassessed the taxonomic identity of the Yellow River softshell turtle. Phylogenomic analyses consistently place these populations sister to Pelodiscus maackii, and external morphology and osteology further demonstrate strong resemblance to P. maackii while clearly differentiating them from P. sinensis. These results support recognizing the Yellow River softshell turtle as a distinct geographic lineage of P. maackii, clarifying its taxonomic identity and refining our understanding of diversity within Pelodiscus.

**More diverse than expected: A new troglobitic species of Seborgia Bousfield, 1970 (Amphipoda: Seborgiidae) from caves of the Brazilian semiarid**

Mon, 29 Jun 2026 00:00:00 +1200

Subterranean ecosystems play a pivotal role in shaping diversification processes, particularly among invertebrates, which frequently exhibit convergent troglomorphic traits such as ocular reduction and elongation of appendages. Among crustaceans, amphipods demonstrate exceptional adaptive potential for colonizing hypogean habitats, revealing an often underappreciated reservoir of subterranean biodiversity. In the semiarid Caatinga of northeastern Brazil, the Jandaíra Formation constitutes an extensive Cretaceous limestone system, harboring more than 1,400 documented caves and representing a critical hotspot for stygobiotic taxa. Building on this insight, we expand the known range of Seborgia within the Jandaíra Formation and describe a single new troglobitic species from a spatially isolated cave system. This species is readily diagnosable by distinct morphological characters of the gnathopods, uropods, and telson, and its occurrence in strict allopatry is consistent with diversification driven by subterranean vicariance. Its highly restricted distribution highlights the role of hydrogeological isolation and habitat fragmentation as key evolutionary forces shaping subterranean diversity in this region. Notably, the newly described species occurs in a cave in the Furna Feia National Park, highlighting the importance of protected areas for the conservation of subterranean ecosystems and their unique biodiversity.

**A new species of Serrapinnus (Characiformes: Characidae: Cheirodontinae) from the rio Manso drainage, upper rio Paraguai basin, Mato Grosso, Brazil**

ALEXANDRE C. RIBEIRO, KATIANE M. FERREIRA, FERNANDO C. JEREP — Mon, 29 Jun 2026 00:00:00 +1200

We describe Serrapinnus mansoensis sp. nov., a new species of Cheirodontinae from a headwater stream of the rio Manso basin, upper rio Paraguai drainage, Mato Grosso, Brazil. The species is immediately distinguished from all congeners by the absence of any dark melanophore-based markings in live specimens, with both the midlateral stripe and caudal peduncle spot inconspicuously evidenced in alcohol preserved specimens by the presence of scarce and scattered melanophores. It further differs by having 7–9 cusps on premaxillary teeth (vs. 4–5 in S. microdon, and S. potiguar), 36–39 scales in the longitudinal series (vs. ≤35 in S. aster, S. calliurus, S. malabarbai, S. kriegi, S. micropterus, S. notomelas, and S. piaba), incomplete lateral line (vs. complete in S. heterodon), and 16–18 ventral procurrent caudal-fin rays (vs. 11–13 in S. zanatae). The discovery of this species in a small, clear-water headwater highlights the still underestimated diversity and endemism in the upper Paraguai basin and reinforces the conservation priority of these highland aquatic systems.

**An integrative description of a new species of the genus Mauriesia Golovatch, Mikhaljova & Chang, 2010 (Diplopoda: Glomerida: Glomeridae)**

HAN-ZHI CHEN, CHIA-LUNG HUANG, XIAO-FENG XIA — Mon, 29 Jun 2026 00:00:00 +1200

The second species of Mauriesiinae, Mauriesia fuchowensis sp. nov., is described from southeastern China, representing the first formal record of Mauriesiinae from the Chinese mainland. The new species differs strikingly from Mauriesia splendida Golovatch, Mikhaljova & Chang, 2010, the type and only species of the genus, in the male pygidium, with respect to male leg 17, male leg 18, the caudomedian lobule, as well as telopod robustness and conformation. Partial sequences of the cytochrome c oxidase subunit I (COI) gene are provided for the new species, with the sequences deposited in GenBank under accession numbers PZ044645 and PZ044646. Phylogenetic analyses of a 586 bp COI fragment using Maximum Likelihood confirmed the monophyly of Mauriesia fuchowensis sp. nov. with 100% ultrafast bootstrap support, providing robust DNA evidence for its species delimitation.

Amphigomphus puerensis, a new species of dragonfly (Odonata: Gomphidae) from Yunnan, China

BU BING — Mon, 29 Jun 2026 00:00:00 +1200

Amphigomphus puerensis sp. nov. (holotype male, Pu'er City,Yunnan Province, China) is described and illustrated. A distribution map is provided.

Corrigendum: designation of the holotype depositories for 26 new species of the genus Meteorus Haliday from the Area de Conservacion Guanacaste, Costa Rica (Hymenoptera: Braconidae: Euphorinae: Meteorini)

Mon, 29 Jun 2026 00:00:00 +1200