Zootaxa

**Morphological and phylogenetic study of Acanthosquilla Manning, 1963 (Stomatopoda: Nannosquillidae) mantis shrimps, with description of two new species from the Ryukyu Islands, Japan**

HIROKI NAKAJIMA — 2023-02-01

Three species of nannosquillid mantis shrimps, including two new species, Acanthosquilla ryukyuensis n. sp. and Acanthosquilla shoheii n. sp., are described based on specimens collected from the Ryukyu Islands, Japan. The two new species resemble A. derijardi Manning, 1970, but can be distinguished from A. derijardi by the following features: 1) rostral plate anterolateral corner forms almost a right angle; 2) the distal tip of the antennular somite dorsal process reaches or slightly falls short of proximal half of rostral plate; and 3) eighth thoracic somite (= TS8) posterior margin is black medially. Furthermore, A. ryukyuensis n. sp. and A. shoheii n. sp. are easy to identify by the bifurcated lateral tooth of the telson, and by the posterodorsal pattern of the telson, respectively. In this study, molecular analyses based on partial sequences of mitochondrial 12S and 16S ribosomal DNA, cytochrome oxidase subunit I (COI), and the partial nuclear gene of 28S ribosomal DNA recovers these three species of Acanthosquilla and A. multifasciata (Wood-Mason, 1895) (the type species of the genus) in a single clade. The resulting trees also suggest the polyphyly of Nannosquillidae but with low nodal support. Detailed examinations of the morphological and color features and DNA barcoding results allowed us to delineate intraspecific variations and interspecific differences. The number and shape of setae under the dorsal spine of raptorial claw carpus was found to be useful in distinguishing A. shoheii n. sp. from A. derijardi and A. ryukyuensis n. sp., while combinations of the coloration of the rostral plate, posterior margin of TS8 and posterodorsal surface of telson are useful to distinguish the three species.

**A new deep-sea palaemonid shrimp assigned to Periclimenes Costa, 1844 (Decapoda: Caridea) from the West Mariana Ridge, northwestern Pacific**

TOMOYUKI KOMAI — 2023-02-01

A new palaemonid species, Periclimenes variabilis, is described and illustrated on the basis of four specimens from the Ritto Seamount, West Marina Ridge, northwestern Pacific, at depths of 642–666 m. Specimens of the new species were collected with an unidentified hexacoral of Primnoidae (Cnidaria), an antipatharian octocoral Leiopathes sp. (Cnidaria), and an unidentified crinoid (Echinodermata), suggesting association with those invertebrates. Morphological comparison and molecular phylogenetic analyses using the mitochondrial 16S ribosomal RNA and cytochrome C oxidase subunit I genes indicate that the new species is closest to Periclimenes uniunguiculatus Bruce, 1990 although the possession of more than two spiniform setae on either side of the telson in the new species is consistent with the generic diagnosis of Bathymenes Kou, Li & Bruce, 2016. In reference to the close relationship to the species currently assigned to Periclimenes Costa, 1844 and the unsettled taxonomy of the genus, the new species is provisionally assigned to Periclimenes. Differentiating characters between the new species and closely related taxa are discussed.

**A revision of eastern Palaearctic Anthobium Leach, 1819 (Coleoptera: Staphylinidae: Omaliinae: Anthophagini). VII. Six new species and faunistic records from Middle Asia, Himalayan Region and China**

ALEXEY V. SHAVRIN — 2023-02-01

Seven species of the genus Anthobium Leach, 1819 from the eastern Palaearctic Region are (re-) described and illustrated: Nepalese A. jaegeri Shavrin & Smetana, 2019 of the consanguineum group, A. schawalleri sp. n. (China, Gansu: Lianhuashan) of the convexior group, A. ruzickai sp. n. (China, Yunnan: Biluo Mts.) of the crassum group, and a. faillei sp. n. (Nepal, Myagdi Khola), A. luteolum sp. n. (Nepal, Kulanga Khola), A. pauxillum sp. n. (Nepal, Solukhundu) and A. wittmeri sp. n. (India, Kashmir) of the fusculum group. Distributional maps for all (re-) described species are provided. Key to species of the Fusculum group is modified. Faunistic records of eleven species of the atrocephalum, fusculum, gracilipalpe, nigrum and reflexum groups are provided. Anthobium nigrum (Cameron, 1924) is recorded from Nepal for the first time. A checklist of species of the eastern Palaearctic Region is provided.

**Description of three new species of Myrmeleon Linnaeus, 1767 from West Africa (Neuroptera: Myrmeleontidae)**

BRUNO MICHEL — 2023-02-01

Three antlion species, Myrmeleon croceus n. sp., Myrmeleon foucarti n. sp. and Myrmeleon nemoleontoides n. sp. from West Africa are described and illustrated. Information on their distribution, ecology and predators is provided.

**The genus Holaptilon Beier, 1964: discussion on the poorly known boxer mantis genus, with a new species (Mantodea, Gonypetidae)**

KAAN YILMAZ — 2023-02-01

The boxer mantis genus Holaptilon Beier, 1964 (Mantodea: Gonypetidae: Gonypetinae) is known to include two flightless species with a similar body size and morphology. Type species of the genus, H. pusillulum Beier, 1964, is reported from Israel and Jordan. An interesting species of the genus was recently identified from Iran (H. brevipugilis Kolnegari, 2018). In this research, a new species of H. yagmur Yılmaz & Sevgili sp. n. is described from Turkey. This new species was collected from Karacadağ (Şanlıurfa), a volcanic mountain in the Southeastern Anatolia region. Its typical habitat is steppic stony areas. It indicates that the species may be cryptic or nocturnal since it was collected from under stones and ground traps. This finding indicates that the genus is more widespread than previously known and may have more species yet to be discovered. The existence of the genus Holaptilon was reported for the first time in Turkey. Meanwhile, while reviewing the praying mantis list of Turkey, we determined that the samples collected from Ağrı, which are given in the Mantodea list of Turkey, were misdiagnosed as Armene robusta Mishchenko, 1956 and actually belong to the genus Holaptilon, and that Turkey currently hosts 20 praying mantis species/subspecies.

**Three new Spinirta species from China (Araneae, Corinnidae), with the first description of the male of S. leigongshanensis Jin & Zhang, 2020**

LU ZHANG — 2023-02-01

Three new species of the genus Spinirta Jin & Zhang, 2020 are described from China: S. shenwushanensis sp. nov., S. lanceola sp. nov. and S. caudata sp. nov.. Additionally, the male of S. leigongshanensis Jin & Zhang, 2020 is described for the first time. Finally, we provide an updated distribution map of the genus.

**An updated key to the genus Limnophora Robineau-Desvoidy (Diptera: Muscidae) from China, with descriptions of two new species**

BINTAO DU — 2023-02-01

A key to the 80 species and 2 subspecies of the genus Limnophora Robineau-Desvoidy, 1830 from China based on males is provided, including two new species Limnophora magnipulvilla sp. nov. and Limnophora apiciflata sp. nov. Photographs of habitus and male genitalia as well as illustrations of the male genitalia of the new species are given.

First report of two eulophid genera (Hymenoptera: Chalcidoidea: Eulophidae) from India with the description of two new species

A.P. RANJITH — 2023-02-01

The eulophid genera Dermatopelte Erdös & Novicky and Iniostichus Kamijo & Ikeda are reported for the first time from India. Two new species, Dermatopelte striata n. sp. and Iniostichus proximus n. sp. are described and illustrated. A revised key to the Indo-Malayan species of Dermatopelte and a key to the extant species of Iniostichus are included.

**First record of Neorthostigma Belokobylskij (Hymenoptera: Braconidae: Alysiinae) from Neotropical region with description of two new species**

FRANCIÉLLE DIAS DE OLIVEIRA — 2023-02-01

The genus Neorthostigma Belokobylskij, 1998 is recorded in the Neotropical region for the first time, with description of two new species from Brazil viz. Neorthostigma neotropicalis sp. nov. and Neorthostigma signifrons sp. nov. A dichotomous identification key for the known species of Neorthostigma is provided.

Integrative taxonomy revealing a troglobitic new genus of Diplommatinidae from Jiangxi, China (Gastropoda: Caenogastropoda: Cyclophoroidea)

ZHE-YU CHEN — 2023-02-01

A new subterranean diplommatinid snail is described and illustrated from Jiangxi, China. The species is diagnosed by its cylindrical-fusiform shell and absence of internal columellar lamellae and parietal folds. The morphological and molecular phylogenetic characterization of the new species supports the erection of a new genus, Sohtsuia Z.-Y. Chen, gen. nov. A molecular phylogeny of representative East Asian continental species of Diplommatina Benson, 1949 is provided and the relationships of the new genus are discussed. Sohtsuia diting sp. nov. is described as new species.