ZooKeys最新文献

Two new species from the genus Metopiellus Raffray, 1908 (Staphylinidae, Pselaphinae, Metopiasini) are described from both sides of the Ecuadorian Andes: Metopiellus palamaku sp. nov. from the Amazon in eastern Ecuador and Metopiellus chasqui sp. nov. from montane cloud forest in western Ecuador. These findings represent the first country record of the genus.

Three species, Cerodontha (Dizygomyza) flavilunulatasp. nov., C. (D.) granditergasp. nov., C. (D.) tumefactasp. nov., are new to science, and four species, C. (Cerodontha) flavicornis (Egger, 1862), C. (D.) labradorensis Spencer, 1969, C. (Poemyza) beigerae Nowakowski, 1972, and C. (P.) muscina (Meigen, 1830), are recorded from China for the first time. A key and a checklist with photographs of morphological features and male genitalia are presented.

Four species of the genus Cloeon have previously been reported in Thailand: C. bicolor Kimmins, 1947, C. bimaculatum Eaton, 1885, C. harveyi (Kimmins, 1947) and C. marginale Hagen, 1858. However, since 1961, no systematic studies or investigations of this genus have been conducted in that country. This study reviews Cloeon Leach, 1815 in Thailand and investigates five species-C. bengalense, C. bicolor, C. harveyi, C. rubellum, and C. viridulum-based on morphological, molecular, and taxonomic analyses. Three species (C. bengalense, C. rubellum, and C. viridulum) are recorded for the first time in Thailand, and C. rubellum is described for the first time as a mature nymph and adult female. Additionally, the egg chorionic surface of all five species is described for the first time, and its use is demonstrated for species identification in Thailand. A key to the species of Cloeon in Thailand is provided based on the egg structure, mature nymph, and adult female and male.

Xanthephialtes Cameron, 1906 (Hymenoptera, Ichneumonidae, Pimplinae) is a small Afrotropical Darwin wasp genus with only two previously known species, for which we provide images of the holotypes. Here, we describe a new species of the genus, X. iida sp. nov., which is also the first record of the genus in Uganda. We provide a re-definition of the genus and a key to species along with notes on the morphological variation and mimicry of X. schoutedeni Benoit, 1954. Online Lucid identification keys and images of all the species treated herein are available at http://www.waspweb.org.

The little-known subgenus Lagria (Lagriella) Borchmann, 1916 is characterized by pronounced sexual dimorphism, notably manifested in apterous females. In this paper, the Asian species of Lagria (Lagriella) are reviewed, including three known species, Lagria (Lagriella) bimarginata Fairmaire, 1896, L. (Lagriella) andrewesi Borchmann, 1916, L. (Lagriella) mima Borchmann, 1916, and the newly described L. (Lagriella) cordatasp. nov. from Guangxi, Guizhou, Hong Kong, Hunan, China. The new species represents the first record of the subgenus in China. Lectotypes are designated for L. (Lagriella) andrewesi and L. (Lagriella) mima. Habitus images, key diagnostic characters, ecological habitats of the new species, and type habitus of three known Asian species are documented. An identification key to the four Asian species is also provided.

Sudan's unique biogeographic position at the Afrotropical-Palearctic interface, coupled with the ecological gradient of the Nile River, fosters a diverse odonate fauna. Despite this, the genus Paragomphus Cowley, 1934 remains understudied in the region. This study describes Paragomphus alami sp. nov., a new species of Paragomphus from the White Nile floodplain in Sudan, based on integrated morphological and molecular evidence. Field surveys conducted between 2017 and 2022 documented adult populations across the Sudanese floodplains. Specimens were morphologically analysed using microscopy compared to congeners P. lacustris Karsch, 1890 and P. elpidius Ris, 1921. DNA barcoding (COI gene) was performed on two specimens, with maximum-likelihood phylogenetic reconstruction using 28 sequences of Paragomphus and related species in addition to an outgroup. Mean interspecific genetic distance was computed manually. Morphological comparisons with congeners revealed unique diagnostic traits in P. alami sp. nov., including short, thick cerci ending with a black tooth, and an epiproct that is noticeably shorter than those of P. lacustris and P. elpidius. The phylogenetic analysis revealed that P. alami forms a well-supported monophyletic clade (bootstrap value = 100%), which is corroborated by morphological evidence, and no observed intraspecific variation, which supports the recognition of this species as distinct; this was further supported by the mean interspecific distance of 12.34%. This discovery highlights Sudan's role as a biogeographic crossroads and the need for further research of Odonata in the region. Habitat sensitivity highlights conservation urgency. The species seasonal emergence, habitat specificity, and sensitivity to deforestation underscore its conservation importance.

This study describes Semioscopis sinicella Wang, Zhu & Xiao, sp. nov. of the genus Semioscopis Hübner, 1825 (Lepidoptera, Depressariidae) from China. The new species is similar in external morphology and male genitalia to the European S. avellanella (Hübner, 1793) and the Japanese S. similis Saito, 1989, but it can be distinguished in female genitalia mainly by the distinctly shorter sclerotised section of the ductus bursae and the length ratios of the ductus bursae and corpus bursae to the papillae anales. Morphological descriptions and illustrations of the new species are provided. Furthermore, a phylogenetic analysis based on COI gene sequences using IQ-tree supports S. sinicella sp. nov. as a monophyletic lineage and further divides the genus Semioscopis into seven species groups.

A new species Cheironitis van Lansberge, 1875 (Cheironitis aiweiae sp. nov.), is described from Shiren Gou, Urumqi, in the XinJiang Uygur Autonomous Region of China. Cheironitis moeris (Pallas, 1787) is also reported from this region. These two original observations complement the composition of Cheironitis species in China and further expand our knowledge of their distribution.

Tylototriton anguliceps and T. ngoclinhensis are two species of crocodile newts native to Vietnam. In this study, we assemble and describe for the first time the complete mitochondrial genomes of T. anguliceps (16,720 bp) and T. ngoclinhensis (16,260 bp). Both genomes consist of 37 genes, which is consistent with most other vertebrates, including 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), and two ribosomal RNAs (rRNAs). The arrangements of these mitochondrial genes are the same in T. anguliceps and T. ngoclinhensis, but some genes have slight differences in their lengths, start codons, and stop codons. Phylogenetic analysis using 13 PCGs from the mitogenomes as well as concatenated 16S and ND2 sequences confirm the taxonomic identities of the samples, with T. anguliceps belonging to the subgenus Tylototriton and T. ngoclinhensis to the subgenus Yaotriton. Furthermore, the phylogenetic analysis reveals that the previously assembled mitogenome (GenBank accession KR733683) thought to represent T. wenxianensis is likely belongs to T. maolanensis, thus providing the first mitogenome for this species. This study's re-identification and the completion of two new mitogenomes provide a total of three new mitogenomes for future studies: those of T. anguliceps, T. ngoclinhensis, and the re-identified T. maolanensis. The new mitogenomes can contribute valuable data for future molecular and evolutionary studies, as well as a basis for conservation genomics of the genus Tylototriton and other salamanders.

Five new species of the trapdoor spider genus Latouchia Pocock, 1901 are described from southern China based on both morphological and molecular evidence: L. jihe sp. nov. (♂♀), L. wufeng sp. nov. (♂♀), L. wuhan sp. nov. (♂♀), L. yinggen sp. nov. (♂♀), and L. zhangping sp. nov. (♂♀). The male and female of L. jinyun Hao, Yu & Zhang, 2025 are also redescribed from specimens collected in Nanchong City, Sichuan Province, China, located over 100 km from the type locality in Chongqing Municipality. Species delimitation is supported by genetic distance analyses of the mitochondrial DNA barcode gene (cytochrome c oxidase subunit I, COI), comparing the five new species with five previously described taxa. GenBank accession codes for the five new species and L. jinyun are provided to facilitate future identification and taxonomic research.