Zootaxa

**Revision of the treehopper genus Gelastogonia Kirkaldy, 1904 (Hemiptera, Membracidae) with description of new species from Ecuador and Colombia**

2026-04-21T13:30:13+12:00

We present a taxonomic revision of the Andean treehopper genus Gelastogonia Kirkaldy, 1904. After reviewing all the type material of the genus, we transfer Gelastogonia parva Sakakibara to Ennya parva (Sakakibara) comb. nov. and designate a Lectotype for Gelastogonia bicristata (Stål). The genus is redescribed, along with the species Gelastogonia bicristata, Gelastogonia pulchella (Funkhouser), and Gelastogonia rufipes (Fairmaire) for which new distributional records are also provided. Additionally, sexual dimorphism is reported in the genus for the first time. Three new species are described from Ecuador: Gelastogonia andyi sp. nov. Montalvo-Salazar, Rueda-Rodríguez & López-García from the Subandean mountain range Cordillera del Cóndor, Gelastogonia cosanga sp. nov. Montalvo-Salazar, Rueda-Rodríguez & López-García from the Quijos Valley in the northeastern Andes, and Gelastogonia tandayapa sp. nov. Montalvo-Salazar, Rueda-Rodríguez & López-García from the northwestern Andes. Two new species are described from Colombia: Gelastogonia nubicola sp. nov. Flórez-V from the northern of the Cordillera Central and the Cordillera Occidental, and Gelastogonia xanthonota sp. nov. Flórez-V from the PNN Los Nevados. Keys to species for males and females, illustrations of each species, and distributional maps are provided.

**Review of fig wasps (Hymenoptera: Chalcidoidea: Agaonidae & Pteromalidae) associated with Ficus (Moraceae) in South Korea, with descriptions of two new species**

2026-04-21T13:31:10+12:00

This study presents the first comprehensive review of South Korean fig wasps (Hymenoptera: Chalcidoidea: Agaonidae, Pteromalidae) associated with Ficus. Two new species, Wiebesia confusa Park & Kim, sp. nov. (Agaonidae) and Philotrypesis bicolor Park & Kim, sp. nov. (Pteromalidae), were reared from the figs of Ficus oxyphylla (=F. sarmentosa var. nipponica, Moraceae). Furthermore, two additional agaonid species, Blastophaga nipponica Grandi, 1922 and Wiebesia pumilae (Hill, 1967), and a pteromalid species, Sycoscapter inubiae (Ishii, 1934), are formally recorded from South Korea for the first time. The mitochondrial cytochrome c oxidase subunit I and cytochrome b genes were used to corroborate the morphological identification of the wasps. A key to Korean species, descriptions, diagnoses and host plant records are provided, along with detailed images of morphological characters for each species.

Observations on Zealandian Triassic and Jurassic Brachiopoda

2026-04-21T13:32:08+12:00

This paper includes a series of new records, nomenclatural changes and changes in stratigraphic and geographic ranges of Brachiopoda from the Triassic and Jurassic of New Zealand and New Caledonia. Following a suggestion in the Treatise on Invertebrate Paleontology, the Early Jurassic species Vincentirhynchia uitoeensis and Vincentirhynchia pomeyroli are assigned to the genus Prionorhynchia. Specimens of Aparimarhynchia dunrobinensis from the Kaka Point Fold Belt, South Otago are recorded and figured, and the time range of the genus Aparimarhynchia is reviewed. Two species of Norellidae are now recognised, and are tentatively placed in the subfamily Diholkorhynchiinae. Clavigera drotae is reviewed on New Caledonian material in University of Auckland collections. A single related specimen is recorded from Kawhia. The New Zealand material identified by Trechmann (1918) as Spiriferina fragilis is assigned to Punctospirella Dagys, 1974, of which S. fragilis is the type species. The use of Punctospirella cf. fragilis is recommended for the Zealandian material. A newly found spiriferinide from the Late Triassic (Otapirian / Rhaetian) of Marokopa, Kawhia Syncline is identified as Dispiriferina cf. davidsoni. A spiriferinide previously noted as Psioidiella from the Hettangian of New Caledonia is doubtfully identified as Spiriferina arakiwa. New records of Linguithyris ageri, Murihikurhynchia malingi and Herangirhynchia awakinoensis extend the stratigraphic and geographic ranges of these species.

**Revision of the bee genus Anthophora Latreille (Hymenoptera, Apidae) in Japan**

2026-04-21T13:32:56+12:00

The Japanese fauna of the bee genus Anthophora Latreille is revised. Three species are recognized from Japan: A. (A.) villosula Smith, 1854, A. (Clisodon) terminalis Cresson, 1869, and A. (C.) japonica Murao sp. nov. Anthophora terminalis is formally recorded from Japan. Two taxa of unclear origin, Anthophora hilgendorfi Cockerell, 1911 (= A. clessini Fedchenko, 1875) and A. venerabilis Cockerell, 1911 (= A. subterranea (Germar, 1826)), were originally described from Japan but may have been mislabeled with incorrect type localities and probably do not actually occur in Japan. A key to the Japanese species is provided, along with bionomical data such as flight periods and floral associations in Japan are given.

New records of Lace bugs in New Caledonia (Hemiptera: Heteroptera: Tingidae) and their potential impacts on endemic fauna and agriculture

2026-04-21T13:33:42+12:00

Recent arrivals of lace bug species to New Caledonia pushed us to update the catalog of this family. We listed the endemics and the recently arrived species, making a total of 51 species currently recorded. We also reported new sites and new hosts in New Caledonia. A partial lace bug fauna from Wallis and Futuna is also given. Their environmental and agricultural impacts are reviewed in the context of a biodiversity hotspot.

New distribution records and molecular characterization of six commercially important groupers (Teleostei: Perciformes: Epinephelidae) from the Lakshadweep Islands, India

2026-04-21T13:34:28+12:00

This study documents the first recorded occurrence of six commercially important grouper fish species (Teleostei: Perciformes: Epinephelidae) from the Lakshadweep Islands, India. The species documented in this study are the Snubnose grouper Epinephelus macrospilos (Bleeker, 1855), Brownspotted grouper Epinephelus chlorostigma (Valenciennes, 1828), Dotted grouper Epinephelus epistictus (Temminck and Schlegel, 1842), Slender grouper Anyperodon leucogrammicus (Valenciennes, 1828), White-edged lyretail Variola albimarginata Baissac, 1953 and Oblique-banded grouper Epinephelus radiatus (Day, 1868). Both morphological examination and molecular analysis were carried out to characterize and confirm the identity of these species. This investigation represents the first documentation of these six grouper species from the Lakshadweep Islands. The results enhance current understanding of the marine biodiversity of the region and provide valuable information for the management and sustainability of its commercially important fisheries.

**A new Tetranchyroderma species (Gastrotricha, Macrodasyida) from Tunisia, with its phylogenetic position based on molecular markers**

2026-04-21T13:35:18+12:00

Data on marine gastrotrichs fauna from the southern coast of the Mediterranean Sea is scanty. To address the gap, a series of faunistic surveys along the northern Tunisian coastline is ongoing. In a shallow sublittoral sample collected at Chat Zwerâa, Béja, a new species of the genus Tetranchyroderma was found. Detailed morphological descriptions, along with molecular phylogenetic analysis based on ribosomal genes (18S and 28S) of the new species are provided. The new Tetranchyroderma has a pentancrous covering and prominent cephalic pestle organs; the caudal pedicles have three tubes each. The new species is also defined by a number and arrangement of adhesive tubes different from its congeners. Phylogenetic analyses using maximum likelihood (ML) and Bayesian inference (BI) methods, based on concatenated ribosomal gene sequences from 43 taxa, which included 31 thaumastodermatids, confirmed that the genus Tetranchyroderma is non-monophyletic. The analysis positioned the new species alongside other species that possess pestle organs, including Tetranchyroderma antenniphorum, T. esarabdophorum, T. papii and Ptychostomella tyrrhenica.

Misidentifications of four native Indian mosquito species (Diptera: Culicidae) erroneously reported as new country records

2026-04-21T13:36:19+12:00

The misidentifications of four native Indian mosquito species (Diptera: Culicidae) erroneously reported to be new country records are corrected. The misidentified species include Aedes (Mucidus) scatophagoides, Ae. (Neomelanoconion) lineatopennis, Coquillettidia (Coquillettidia) crassipes and a species of the Campestris Series of Uranotaenia, tentatively identified as Ur. (Uranotaenia) rampae. The four species were incorrectly identified as the Australasian Ae. alternans, the Afrotropical Ae. mcintoshi, the Australasian Cq. xanthogaster and the American Ur. lowii, respectively. Causes of the misidentifications are explained.

**Description of a new intertidal genus Zeahalorhadinus (Coleoptera: Staphylinidae: Aleocharinae) from New Zealand and discussion of its systematic position**

2026-04-21T13:37:08+12:00

Zeahalorhadinus Yoo & Ahn, gen. nov. is described based on the new species discovered along the coasts of New Zealand. Zeahalorhadinus nunni Yoo & Ahn, sp. nov. is described with illustrations of diagnostic characters. Based on the galea bearing several long setae only on mesal surface from middle to apex, the lacinia with setae on mesal surface, as well as the shape of apical lobe of paramere and the internal sclerites of the median lobe of the aedeagus, the new genus is hypothesized to be a member of the tribe Liparocephalini. Zeahalorhadinus Yoo & Ahn, gen. nov. can be distinguished from related genera by the combination of the following characters: all antennomeres elongate; labrum semicircular with truncate anterior margin, bearing more than 80 setae; ligula very long; mentum with anterior margin deeply emarginate and anterolateral region triangular; elytra distinctly wider than pronotum; and female tergite X with prolonged posterior margin. A comparison table of the new genus with related liparocephaline genera is also provided.

An unexpected new genus of the relict nematocerous family Pachyneuridae (Diptera) from Japan

2026-04-21T13:37:55+12:00

Plesiopachyneura ohtaniensis gen. et sp. nov. of the rare nematocerous family Pachyneuridae is described and illustrated from Honshu, Japan. Plesiopachyneura is superficially similar to the genus Pachyneura, but distinguished from the latter by differences in the antenna, chaetotaxy of the tibiae, wing shape and venation, and female terminalia. Biogeography and bionomics of the new genus are briefly discussed.

**First record of Rhysodinae (Coleoptera: Adephaga: Carabidae) from Peru, with description of a new species of Clinidium Kirby, 1835**

2026-04-21T13:38:41+12:00

**On the validity of Placogobio varidiscus (Thoni & Arrindell, 2025)**

2026-04-21T13:39:28+12:00