Zootaxa

**On species groups in the jumping spider genus Hypaeus Simon, 1900 (Araneae: Salticidae: Amycini), with a revision of the H. porcatus species group**

2026-05-19T11:37:40+12:00

Hypaeus Simon, 1900 is one of the most diverse genera of Amycini, but its limits and internal structure remain poorly defined. Herein, we focus on species closely related to the type species H. taczanowskii (Mello-Leitão, 1948) and propose four species groups within Hypaeus based on shared morphological traits: the H. taczanowskii, the H. miles, the H. ignicomus, and the H. porcatus species groups. The H. porcatus species group is revised in detail. Fresh males of H. flavipes Simon, 1900, H. frontosus Simon, 1900, and H. porcatus (Taczanowski, 1871) are described, and their unknown females are described for the first time. Dasyophrys nigra Mello-Leitão, 1930 is revalidated, and Dasyophrys Mello-Leitão, 1930 is confirmed as a junior synonym of Hypaeus. Maenola lunata Mello-Leitão, 1940 is synonymized with H. niger comb. nov., which is redescribed based on both sexes. Noegus lodovicoi Ruiz & Brescovit, 2008 and Agelista petrusewiczi Caporiacco, 1947 are transferred to Hypaeus. Hypaeus lodovicoi comb. nov. is proposed as a junior synonym of H. frontosus. The female of Hypaeus petrusewiczi comb. nov. is redescribed and the male is described for the first time. Hypaeus tapajonicus sp. nov. is described from Brazil based on males and females. Detailed description of cheliceral dentition in the H. porcatus species group is given. These four species groups are interpreted as composing Hypaeus sensu stricto, whereas the placement of other species currently assigned to the genus remains to be tested in future comparative or phylogenetic studies.

New and interesting spiders (Arthropoda, Araneae) from Vashlovani National Park and Chachuna Managed Reserve (Georgia). Part II.

2026-05-19T11:39:03+12:00

Spiders collected individually during short outings at different locations, as well as during a trip to Vashlovani National Park and Chachuna Managed Reserve, were identified, resulting in the recognition of 22 species, of which three are described as new: Harpactea digitata Seropian, sp. nov. (♂, Dedoplistskaro) (Dysderidae), Leptopilos longiembolus Seropian & Japaridze, sp. nov. (♂, Vashlovani National Park), and Palpimanus obscurus Seropian & Bulbulashvili, sp. nov. (♂♀, Georgia, Azerbaijan, and Iran) (Palpimanidae). A female of Synema inexpectatum Seropian, Bulbulashvili, Makharadze & Baznikin, 2024, collected with several males, is described, while the species is recorded for the first time from the Kvemo Kartli region. Furthermore, Bogdocosa kronebergi (Andreeva, 1976), Marinarozelotes adriaticus (Caporiacco, 1951), and Pseudicius palaestinensis Strand, 1915 are recorded in Georgia for the first time. Diagnostic drawings and photographs of preserved specimens are included, along with detailed collecting data.

**Five new species of Phraortes Stål, 1875 from the Ryukyus, Japan (Phasmatodea: Lonchodidae)**

2026-05-19T11:40:35+12:00

Five new species of Phraortes are described from the Ryukyus, Japan. Phraortes tokaraensis sp. nov. is described from Nakanoshima Island, P. kenmun sp. nov. from Amami-Oshima Island, P. okinawaensis sp. nov. from Okinawa-honto Island, P. yaeyamaensis sp. nov. from Ishigaki-jima Island, Iriomote-jima Island and Kuroshima Island, and P. maisan sp. nov. from Yonaguni-jima Island. The morphology of females, males, and eggs of the new species is illustrated. A key to the species of Phraortes from the Ryukyus is also provided.

Relationships and description of a new genus of psammophilic catfish from northeastern Brazil (Siluriformes: Trichomycteridae)

2026-05-19T11:41:46+12:00

Relationships of trichomycterid catfishes of the clade comprising Glanapteryginae and Sarcoglanidinae are still insufficiently known. We performed a multigene phylogeny, 3,252 bp, constituting the richest taxon sample of the Glanapteryginae-Sarcoglanidinae lineage in phylogenetic studies until now. It supported Ammoglanis multidentatus as sister to a clade comprising all other taxa of the Glanapteryginae-Sarcoglanidinae lineage, justifying the description of a new genus, diagnosed by the unique morphology of the sesamoid supraorbital, anteroventral process of the opercle, vomer and parurohyal, besides being distinguished from other glanapterygines by having 15 or 16 opercular odontodes and the anal-fin base posterior to the dorsal-fin base. Ammoglanis is supported as a monotypic genus, sister to Stauroglanis. Hyaloglanis and Salpynx were supported as sister taxa but do not form a monophyletic group with the Glanapteryginae as recently proposed, whereas Sarcoglanis is recovered as sister to the Glanapteryginae.

**A new species of Columbisoga (Delphacidae, Delphacinae, Tropidocephalini) from Argentina**

2026-05-19T11:43:01+12:00

A new species of Columbisoga Muir (Delphacidae, Delphacinae) is described from Tucumán province, Argentina. This is the first species in the tribe Tropidocephalini reported from Argentina. Including the new species, C. dentipyga sp. nov., the genus Columbisoga comprises one species from India (the type species) and 13 from the Americas.

**On the genus Phloeostiba Thomson, 1858 (Coleoptera: Staphylinidae: Omaliinae: Omaliini) of Indonesia, with description of two new species from Sulawesi**

2026-05-19T11:44:22+12:00

Three Indonesian species of the genus Phloeostiba Thomson, 1858 are (re-) described and illustrated: Ph. hammondi sp. nov. and Ph. truncata sp. nov. (both from one locality in Bogani Nani Wartabone National Park in Minahassa Peninsula, Sulawesi), and Ph. subapicalis (Cameron, 1928), known from Sumatra. A lectotype is designated for Phloeonomus subapicalis. Additionally, Ph. plana (Paykull, 1792) is recorded from Bhutan for the first time.

**Observations on Archiclaviger gaofani Yin, Hlaváč & Cuccodoro (Coleoptera: Staphylinidae: Pselaphinae), with new faunistic records from Nanjing**

2026-05-19T11:45:27+12:00

The myrmecophilous pselaphine beetle Archiclaviger gaofani Yin, Hlaváč & Cuccodoro, 2020 (Coleoptera: Staphylinidae: Pselaphinae: Clavigeritae) is reported from Nanjing, Jiangsu Province, eastern China. This discovery represents the second known locality of this species, extending its distribution for 95 km westward from the type locality in Changzhou. A relatively large population comprising approximately 20 individuals was discovered in nests of Nylanderia bourbonica (Forel, 1886) (Hymenoptera: Formicidae) under stones and bricks in a riparian wetland park along the Yangtze River. For the first time, detailed behavioral observations are provided for the genus Archiclaviger Heller, 1936.

**One new species of Thymistida Walker, 1865, and two new records from Xizang, China (Lepidoptera, Drepanidae, Drepaninae)**

2026-05-19T11:46:55+12:00

Three species of Thymistida (Walker, 1865) were found from Drepaninae specimens in Linzhi, Xizang, including a new species of Thymistida motuoensis Pan & Yang, sp. nov., two new records of Thymistida tripunctata (Walker, 1865) and Thymistida nigritincta (Warren, 1923) in Xizang, China. In this paper, the external morphology of adults, female and male genitalia were provided, and the identification characteristics were described in detail. The distribution of host plants and domestic and foreign are given. The specimens are preserved in the Institute of Plateau Ecology, Xizang Agriculture and Animal Husbandry University.

New records of four typhlocybine leafhoppers (Hemiptera: Cicadellidae) from Japan

2026-05-19T11:48:24+12:00

The following four species of typhlocybine leafhoppers are recorded from Japan for the first time: Hebata (Signatasca) fissurata (Dworakowska), Nikkotettix cuspidata Qin et Zhang, Tautoneura polymitusa Oh et Jung, Aguriahana sichotana (Anufriev). Among these species, N. cuspidata and T. polymitusa are considered likely alien species, based on their host association with non-native plants and their occurrence primarily in urban environments. Biological notes, host plant information, and taxonomic remarks are provided for each species.

**First larval record of Sudis hyalina Rafinesque, 1810 from the Southeast Brazilian Bight**

2026-05-19T11:49:37+12:00