Pub Date : 2025-08-29DOI: 10.1016/j.jcz.2025.08.013
Miguel A. Bustos , Christian A. Salazar , Claudio F. Cornejo , Hugo A. Benítez , Christian M. Ibáñez
Changes in species diversity may be accompanied by morphospace variation at different spatial and temporal scales. Evidence indicates that shifts in species diversity and morphological disparity (morphodisparity) are prevalent among marine invertebrates across the geological scale. This study estimates the diversity and morphodisparity of ammonites across the Jurassic–Cretaceous (J/K) transition—from the Tithonian to the Valanginian stages—by examining 158 specimens representing 33 species and 21 genera from four localities in central Chile. Ammonites were photographed in lateral and frontal views to perform geometric morphometrics analyses based on landmarks and semilandmarks. The resulting shapes were evaluated using multivariate statistical approaches across geological stages. Results suggest that faunal changes in diversity during the J/K transition are associated with significant variations in ammonite morphospace. Notably, significant changes in morphodisparity were observed between the late Tithonian and early Berriasian, and again between the early and late Berriasian. This study not only documents faunal turnover in central Chile but also contributes to our understanding of how extinction pulses can drive morphological innovation or constraint during key evolutionary transitions.
{"title":"Unravelling morphological disparity and faunal change across the J/K transition using geometric morphometrics: A case study of ammonites from central Chile","authors":"Miguel A. Bustos , Christian A. Salazar , Claudio F. Cornejo , Hugo A. Benítez , Christian M. Ibáñez","doi":"10.1016/j.jcz.2025.08.013","DOIUrl":"10.1016/j.jcz.2025.08.013","url":null,"abstract":"<div><div>Changes in species diversity may be accompanied by morphospace variation at different spatial and temporal scales. Evidence indicates that shifts in species diversity and morphological disparity (morphodisparity) are prevalent among marine invertebrates across the geological scale. This study estimates the diversity and morphodisparity of ammonites across the Jurassic–Cretaceous (J/K) transition—from the Tithonian to the Valanginian stages—by examining 158 specimens representing 33 species and 21 genera from four localities in central Chile. Ammonites were photographed in lateral and frontal views to perform geometric morphometrics analyses based on landmarks and semilandmarks. The resulting shapes were evaluated using multivariate statistical approaches across geological stages. Results suggest that faunal changes in diversity during the J/K transition are associated with significant variations in ammonite morphospace. Notably, significant changes in morphodisparity were observed between the late Tithonian and early Berriasian, and again between the early and late Berriasian. This study not only documents faunal turnover in central Chile but also contributes to our understanding of how extinction pulses can drive morphological innovation or constraint during key evolutionary transitions.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 1-11"},"PeriodicalIF":1.5,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144920329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-29DOI: 10.1016/j.jcz.2025.08.012
Julia K. Zograf, Kseniya V. Efimova, Vladimir V. Mordukhovich
Summary - Nematodes from the family Thoracostomopsidae are ubiquitous in the World Ocean. Two species were found in subtidal bottom sedments off the eastern coast of the Kamchatka Peninsula. A taxonomic revision of the genus Trileptium has been provided. The new genus Neotrileptium gen. nov. was established and two new species Neotrileptium gracilis gen. et sp. nov. and Neotrileptium unicum gen. et sp. nov. are described. Neotrileptium gen.nov. shows all the main characters of Thoracostomopsidae, but differs from all known thoracostomopsids in the shape and position of the mandibular complexes (situated well forward in a spacious buccal cavity). The new species differ from others in this genus by a very large body size (more than 20,000 μm for N. unicum gen. et sp. nov. and more than 9000 μm for N. gracilis gen. et sp. nov.) and the presence of a pronounced circle of short cervical setae. Data on the nearly full length of the 18S rDNA, D1-D3 and D8-D10 domains of the 28S rDNA and ITS/5.8S and cox1 mtDNA nucleotide sequences were obtained. A phylogenetic analysis of the family Thoracostomopsidae was carried out using data on the nucleotide sequences of nuclear DNA of representatives of all three subfamilies (Thoracostominae, Enoplolaiminae, and Trileptiinae). The results of phylogenetic analysis did not confirm the monophyly of the last two subfamilies and many genera.
摘要-胸腹线虫科的线虫在世界海洋中普遍存在。在堪察加半岛东海岸的潮下底部沉积物中发现了两种。提供了三棱属的分类修订。建立了新属Neotrileptium gen. 11 .，并描述了新种Neotrileptium gracilis gen. et sp. 11和Neotrileptium unicum gen. et sp. 11两个新种。Neotrileptium gen.nov。显示了胸口科的所有主要特征，但在下颌复合体的形状和位置上与所有已知的胸口科不同（位于一个宽敞的颊腔中）。该新种与该属其他物种的不同之处是体型非常大（N. unicum gen. et sp. 11 .超过20,000 μm， N. gracilis gen. et sp. 11 .超过9000 μm），并且存在明显的短颈刚毛圈。获得了18S rDNA的近全长、28S rDNA的D1-D3和D8-D10结构域以及ITS/5.8S和cox1 mtDNA核苷酸序列的数据。利用3个亚科（胸口蝗科、Enoplolaiminae和Trileptiinae）代表的核DNA核苷酸序列数据对胸口蝗科进行了系统发育分析。系统发育分析结果未证实最后两个亚科和许多属的单系性。
{"title":"Integrative descriptions of two new Thoracostomopsidae species (Nematoda, Enoplida) with the brief discussion on nematode spicules origin","authors":"Julia K. Zograf, Kseniya V. Efimova, Vladimir V. Mordukhovich","doi":"10.1016/j.jcz.2025.08.012","DOIUrl":"10.1016/j.jcz.2025.08.012","url":null,"abstract":"<div><div>Summary - Nematodes from the family Thoracostomopsidae are ubiquitous in the World Ocean. Two species were found in subtidal bottom sedments off the eastern coast of the Kamchatka Peninsula. A taxonomic revision of the genus <em>Trileptium</em> has been provided. The new genus <em>Neotrileptium gen. nov.</em> was established and two new species <em>Neotrileptium gracilis</em> gen. et sp. nov. and <em>Neotrileptium unicum</em> gen. et sp. nov. are described. <em>Neotrileptium</em> gen.nov. shows all the main characters of Thoracostomopsidae, but differs from all known thoracostomopsids in the shape and position of the mandibular complexes (situated well forward in a spacious buccal cavity). The new species differ from others in this genus by a very large body size (more than 20,000 μm for <em>N. unicum</em> gen. et sp. nov. and more than 9000 μm for <em>N. gracilis</em> gen. et sp. nov.) and the presence of a pronounced circle of short cervical setae. Data on the nearly full length of the 18S rDNA, D1-D3 and D8-D10 domains of the 28S rDNA and ITS/5.8S and <em>cox1</em> mtDNA nucleotide sequences were obtained. A phylogenetic analysis of the family Thoracostomopsidae was carried out using data on the nucleotide sequences of nuclear DNA of representatives of all three subfamilies (Thoracostominae, Enoplolaiminae, and Trileptiinae). The results of phylogenetic analysis did not confirm the monophyly of the last two subfamilies and many genera.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 50-69"},"PeriodicalIF":1.5,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-26DOI: 10.1016/j.jcz.2025.08.010
Nur Liyana Binti Khairul Yusri , Jamsari Amirul Firdaus Jamaluddin , Abdullah Halim Muhammad-Rasul , Mohd Lokman Ilham-Norhakim , Sahat Ratmuangkhwang , Sébastien Lavoué
Tropical Asia is home to the brackish/freshwater fish genus Brachygobius (Teleostei: Oxudercidae: Gobionellinae), commonly known as bumblebee gobies due to the alternating black and yellow/whitish bands on their bodies. The taxonomy of these miniature fishes is insufficiently studied, making their identification difficult. Here, we examined the species diversity of bumblebee gobies in Peninsular Malaysia by applying two molecular markers: the “barcode” fragment of the cytochrome c oxidase subunit I (COI) gene and a fragment of the nuclear rhodopsin (rho) gene. Twenty-four COI sequences and 20 rho sequences of Brachygobius were newly determined, combined and analysed with available data from both within and outside Peninsular Malaysia. A species delimitation approach conservatively revealed nine species of Brachygobius in our dataset. Conflicts with the current morphology-based classification were identified. Brachygobius sabanus and Brachygobius doriae are not reciprocally monophyletic, while Brachygobius nunus and Brachygobius kabiliensis each represent a species complex. Four species occur in Peninsular Malaysia, which we identified as Brachygobius xanthomelas, Brachygobiussabanus, Brachygobiusnunus, and Brachygobius cf. aggregatus. A photograph of a specimen from each species in Peninsular Malaysia, along with habitat and distribution information, is provided.
{"title":"Molecular taxonomy of bumblebee gobies (Oxudercidae: Gobionellinae: Brachygobius) in Peninsular Malaysia","authors":"Nur Liyana Binti Khairul Yusri , Jamsari Amirul Firdaus Jamaluddin , Abdullah Halim Muhammad-Rasul , Mohd Lokman Ilham-Norhakim , Sahat Ratmuangkhwang , Sébastien Lavoué","doi":"10.1016/j.jcz.2025.08.010","DOIUrl":"10.1016/j.jcz.2025.08.010","url":null,"abstract":"<div><div>Tropical Asia is home to the brackish/freshwater fish genus <em>Brachygobius</em> (Teleostei: Oxudercidae: Gobionellinae), commonly known as bumblebee gobies due to the alternating black and yellow/whitish bands on their bodies. The taxonomy of these miniature fishes is insufficiently studied, making their identification difficult. Here, we examined the species diversity of bumblebee gobies in Peninsular Malaysia by applying two molecular markers: the “barcode” fragment of the <em>cytochrome c oxidase subunit I</em> (<em>COI</em>) gene and a fragment of the nuclear <em>rhodopsin</em> (<em>rho</em>) gene. Twenty-four <em>COI</em> sequences and 20 <em>rho</em> sequences of <em>Brachygobius</em> were newly determined, combined and analysed with available data from both within and outside Peninsular Malaysia. A species delimitation approach conservatively revealed nine species of <em>Brachygobius</em> in our dataset. Conflicts with the current morphology-based classification were identified. <em>Brachygobius sabanus</em> and <em>Brachygobius doriae</em> are not reciprocally monophyletic, while <em>Brachygobius nunus</em> and <em>Brachygobius kabiliensis</em> each represent a species complex. Four species occur in Peninsular Malaysia, which we identified as <em>Brachygobius xanthomelas</em>, <em>B</em><em>rachygobius</em> <em>sabanus</em>, <em>B</em><em>rachygobius</em> <em>nunus</em>, and <em>B</em><em>rachygobius</em> cf. <em>aggregatus</em>. A photograph of a specimen from each species in Peninsular Malaysia, along with habitat and distribution information, is provided.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 20-30"},"PeriodicalIF":1.5,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-25DOI: 10.1016/j.jcz.2025.08.009
Ning-Bo Ma , Xiu-Fang Dong , Yu Ji , Xin Jin , De-Wei Wei , Yan-Fei Li , Zheng-Hao Yue , Wen-Jun Bu , Ke-Long Jiao
In this study, we first obtained the complete mitochondrial genome of Contarinia maculipennis, an important worldwide invasive flower and vegetable pest, from Hengzhou, Nanning, Guangxi, China, then annotated its mitogenome, and analyzed its tRNA secondary structures, which is the first report of comprehensive set of the tRNA secondary structures provided in Family Cecidomyiidae. And we also annotated Dasineura ulmaria's mitogenome sequence from NCBI too. By comparing the rearrangement features of the mitogenome of C. maculipennis with all the other identified and sequenced gall midge species as well as the outgroups, we identified the particularities of rearrangement features and tRNA-Val secondary structure of C. maculipennis. By further sorting out and analyzing the tRNA-Val secondary structures of all the identified gall midge species as well as the outgroups, combined with the classification, phylogenetic analysis and rearrangement characteristics, we found some patterns in Cecidomyiidi as well as Cecidomyiinae, and especially the related powerfully verified particularities of C. maculipennis, which may be a potential key to reveal its extensive host radiation.
{"title":"Contarinia maculipennis, a worldwide invasive flower and vegetable pest possessing the particularities of rearrangement and tRNA secondary structures of mitogenome: A potential key to revealing its extensive host radiation","authors":"Ning-Bo Ma , Xiu-Fang Dong , Yu Ji , Xin Jin , De-Wei Wei , Yan-Fei Li , Zheng-Hao Yue , Wen-Jun Bu , Ke-Long Jiao","doi":"10.1016/j.jcz.2025.08.009","DOIUrl":"10.1016/j.jcz.2025.08.009","url":null,"abstract":"<div><div>In this study, we first obtained the complete mitochondrial genome of <em>Contarinia maculipennis</em>, an important worldwide invasive flower and vegetable pest, from Hengzhou, Nanning, Guangxi, China, then annotated its mitogenome, and analyzed its tRNA secondary structures, which is the first report of comprehensive set of the tRNA secondary structures provided in Family Cecidomyiidae. And we also annotated <em>Dasineura ulmaria</em>'s mitogenome sequence from NCBI too. By comparing the rearrangement features of the mitogenome of <em>C</em>. <em>maculipennis</em> with all the other identified and sequenced gall midge species as well as the outgroups, we identified the particularities of rearrangement features and <em>tRNA-Val</em> secondary structure of <em>C</em>. <em>maculipennis</em>. By further sorting out and analyzing the <em>tRNA-Val</em> secondary structures of all the identified gall midge species as well as the outgroups, combined with the classification, phylogenetic analysis and rearrangement characteristics, we found some patterns in Cecidomyiidi as well as Cecidomyiinae, and especially the related powerfully verified particularities of <em>C</em>. <em>maculipennis</em>, which may be a potential key to reveal its extensive host radiation.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 12-19"},"PeriodicalIF":1.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-25DOI: 10.1016/j.jcz.2025.08.008
Haotian Lei , Xuankun Li
Species of the mythicomyiid genus Platypygus are mainly known from Eurasia, but are also found in Africa and North America, with only one species recorded from China. In this study, we describe two new species from China, Platypygus cangyuanensissp. nov. and Platypygus wenkaiisp. nov. The DNA barcode sequences of both new species were generated. Species validity was supported by morphological characters, phylogenetic analyses, and genetic distance of COI barcodes. A key to all Chinese species of Platypygus is provided.
鸭嘴兽属（mythicomyiid genus Platypygus）的种类主要来自欧亚大陆，但在非洲和北美也有发现，只有一种来自中国。本文描述了两种来自中国的新种——沧源鸭嘴兽（Platypygus沧源鸭嘴兽）和文凯鸭嘴兽（Platypygus wenkaii sp.十一月），并生成了这两个新种的DNA条形码序列。COI条形码的形态特征、系统发育分析和遗传距离支持物种有效性。提供了所有中国鸭嘴兽种的钥匙。
{"title":"Descriptions of two new species of Platypygus Loew (Diptera: Bombyliidae: Mythicomyiinae) from China","authors":"Haotian Lei , Xuankun Li","doi":"10.1016/j.jcz.2025.08.008","DOIUrl":"10.1016/j.jcz.2025.08.008","url":null,"abstract":"<div><div>Species of the mythicomyiid genus <em>Platypygus</em> are mainly known from Eurasia, but are also found in Africa and North America, with only one species recorded from China. In this study, we describe two new species from China, <em>Platypygus cangyuanensis</em> <strong>sp. nov.</strong> and <em>Platypygus wenkaii</em> <strong>sp. nov.</strong> The DNA barcode sequences of both new species were generated. Species validity was supported by morphological characters, phylogenetic analyses, and genetic distance of <em>CO</em>I barcodes. A key to all Chinese species of <em>Platypygus</em> is provided.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 41-49"},"PeriodicalIF":1.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-23DOI: 10.1016/j.jcz.2025.08.007
Beatriz B. Groppo, Millke Jasmine A. Morales, Tiago Belintani, José Paulo L. Guadanucci
Sickius Soares & Camargo, 1948 is a monotypic genus (Sickius longibulbi) characterized by a broad geographic distribution across Brazil and conservative morphology. Notably, females lack spermathecae, and males possess palpal bulb with a long embolus, both traits with taxonomic importance. The genus belongs to the infraorder Mygalomorphae, a group with intricate taxonomic challenges due to uniform morphology, complicating species delimitation. In the present study, we employed an integrative taxonomic approach, combining mitochondrial DNA sequences of the Cytochrome Oxidase I (COI) gene with Fourier Elliptical Analysis of the male palpal bulb shape to investigate lineage differentiation and evolutionary patterns within the genus Sickius. We observed genetic structured populations along with morphometric variation and geographic distribution, except for the two lineages localized in northeast Cerrado. We retain S. longibulbi as a single species with great diversity and possibly undergoing a process of divergence. Future studies with larger sample sizes are encouraged to confirm these findings and further investigate the evolutionary history of the genus.
{"title":"High diversity and population structure in a widespread tarantula Sickius longibulbi (Mygalomorphae: Theraphosidae)","authors":"Beatriz B. Groppo, Millke Jasmine A. Morales, Tiago Belintani, José Paulo L. Guadanucci","doi":"10.1016/j.jcz.2025.08.007","DOIUrl":"10.1016/j.jcz.2025.08.007","url":null,"abstract":"<div><div><em>Sickius</em> Soares & Camargo, 1948 is a monotypic genus <em>(Sickius longibulbi</em>) characterized by a broad geographic distribution across Brazil and conservative morphology. Notably, females lack spermathecae, and males possess palpal bulb with a long embolus, both traits with taxonomic importance. The genus belongs to the infraorder Mygalomorphae, a group with intricate taxonomic challenges due to uniform morphology, complicating species delimitation. In the present study, we employed an integrative taxonomic approach, combining mitochondrial DNA sequences of the Cytochrome Oxidase I (COI) gene with Fourier Elliptical Analysis of the male palpal bulb shape to investigate lineage differentiation and evolutionary patterns within the genus <em>Sickius</em>. We observed genetic structured populations along with morphometric variation and geographic distribution, except for the two lineages localized in northeast Cerrado. We retain <em>S. longibulbi</em> as a single species with great diversity and possibly undergoing a process of divergence. Future studies with larger sample sizes are encouraged to confirm these findings and further investigate the evolutionary history of the genus.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 31-40"},"PeriodicalIF":1.5,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-22DOI: 10.1016/j.jcz.2025.08.004
André Vital Ferreira , James P. Pitts , Cecilia Waichert
Pompilidae are a group of wasps popularly known as spider hunters due to their behavior of capturing spiders for the development of their larvae. Many of the Neotropical genera lack extensive studies and taxonomic keys, for instance Priocnemella Banks. This genus has recently undergone changes in taxonomic composition following a revision of Eragenia Banks, a morphologically and phylogenetically related genus. Eragenia has received some species transferred from Priocnemella, while Phanochilus Banks was synonymized with Priocnemella. Despite the proposed changes, the group has never been revised taxonomically. Species identification is hampered by the lack of updated keys and illustrations. This study aims to review the genus Priocnemella, examining external morphology of both sexes and male genitalia morphology. Priocnemella aurata (Fox, 1897) has its status revalidated; Priocnemella hexagona omissa Banks, 1946 and Priocnemella eurytheme (Banks, 1944) are synonymized with P. hexagona (Fox, 1897) new syn.; and Priocnemella dimidiaticornis (Spinola, 1851) is discussed, with its male described and illustrated for the first time. Ten species of Priocnemella are recognized: Priocnemis fairchildi (Banks, 1925), Priocnemella fuscomarginata (Fox, 1897), Priocnemella hexagona (Banks, 1925), Priocnemella gloriosa (Smith, 1873), Priocnemella aurata (Fox, 1897) status rev., Priocnemella aurodecorata (Cameron, 1912), Priocnemella nobilitata (Smith, 1866), Priocnemella ornata (Banks, 1946); Priocnemella insignis (Banks, 1946), and Priocnemella dimidiaticornis (Spinola, 1851). Our results underscore the critical need for further taxonomic studies to enhance our understanding of biodiversity.
{"title":"Revisiting the genus Priocnemella (Hymenoptera: Pompilidae): a long-overdue taxonomic update","authors":"André Vital Ferreira , James P. Pitts , Cecilia Waichert","doi":"10.1016/j.jcz.2025.08.004","DOIUrl":"10.1016/j.jcz.2025.08.004","url":null,"abstract":"<div><div>Pompilidae are a group of wasps popularly known as spider hunters due to their behavior of capturing spiders for the development of their larvae. Many of the Neotropical genera lack extensive studies and taxonomic keys, for instance <em>Priocnemella</em> Banks. This genus has recently undergone changes in taxonomic composition following a revision of <em>Eragenia</em> Banks, a morphologically and phylogenetically related genus. <em>Eragenia</em> has received some species transferred from <em>Priocnemella,</em> while <em>Phanochilus</em> Banks was synonymized with <em>Priocnemella</em>. Despite the proposed changes, the group has never been revised taxonomically. Species identification is hampered by the lack of updated keys and illustrations. This study aims to review the genus <em>Priocnemella</em>, examining external morphology of both sexes and male genitalia morphology. <em>Priocnemella aurata</em> (Fox, 1897) has its status revalidated; <em>Priocnemella hexagona omissa</em> Banks, 1946 and <em>Priocnemella eurytheme</em> (Banks, 1944) are synonymized with <em>P. hexagona</em> (Fox, 1897) <strong>new syn.</strong>; and <em>Priocnemella dimidiaticornis</em> (Spinola, 1851) is discussed, with its male described and illustrated for the first time. Ten species of <em>Priocnemella</em> are recognized: <em>Priocnemis fairchildi</em> (Banks, 1925), <em>Priocnemella fuscomarginata</em> (Fox, 1897), <em>Priocnemella hexagona</em> (Banks, 1925), <em>Priocnemella gloriosa</em> (Smith, 1873), <em>Priocnemella aurata</em> (Fox, 1897) <strong>status rev.</strong>, <em>Priocnemella aurodecorata</em> (Cameron, 1912)<em>, Priocnemella nobilitata</em> (Smith, 1866), <em>Priocnemella ornata</em> (Banks, 1946); <em>Priocnemella insignis</em> (Banks, 1946)<em>,</em> and <em>Priocnemella dimidiaticornis</em> (Spinola, 1851). Our results underscore the critical need for further taxonomic studies to enhance our understanding of biodiversity.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"319 ","pages":"Pages 90-102"},"PeriodicalIF":1.5,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-21DOI: 10.1016/j.jcz.2025.08.005
Marc Domènech , Arnau Calatayud-Mascarell , Álvaro Pérez-Gómez , Mattia Giacomelli , Arturo Iglesias Baquero , Maite Mojica , Juan José Guerrero , Miquel A. Arnedo , Jesus Lozano-Fernandez
Because of its wide variety of climates and habitats, the Iberian Peninsula harbors a rich and diverse arachnological fauna, including numerous endemisms. This is especially true for habitats like arid and semiarid areas. Many of them are threatened despite containing interesting –and sometimes uncharacterised– fauna, such as the huntsman spiders in the genus Cebrennus.
Previously known to occur from North Africa to the Middle East, new sightings of these spiders in Europe have drawn attention. Here, we use morphological and molecular data to describe a new species of Cebrennus from specimens collected in eastern Spain. Additionally, we use genetic data to place the new species, Cebrennus herculis sp. n., in a phylogenetic context and speculate on the biogeographic processes that lead to its presence in Europe.
Genetic distances among individuals of C. herculis sp. n. were low for the three molecular markers analysed (COI, 18S and 28S). Our phylogenetic tree recovered the monophyly of the Iberian Cebrennus, and placed them as sister to the only African representative with genetic data available, Cebrennus rungsi. Furthermore, divergence time analysis revealed a Palaeogene-Neogene split between the Iberian lineage and C. rungsi, compatible with an allopatric speciation following one of the ancient connections between Europe and Africa landmasses.
These findings show that habitats such as arid and semiarid areas still hide new and interesting diversity, underscoring the importance of preserving them.
{"title":"Description of the first continental European species of the huntsman spider Cebrennus (Araneae, Sparassidae), confirming the presence of the genus in the region","authors":"Marc Domènech , Arnau Calatayud-Mascarell , Álvaro Pérez-Gómez , Mattia Giacomelli , Arturo Iglesias Baquero , Maite Mojica , Juan José Guerrero , Miquel A. Arnedo , Jesus Lozano-Fernandez","doi":"10.1016/j.jcz.2025.08.005","DOIUrl":"10.1016/j.jcz.2025.08.005","url":null,"abstract":"<div><div>Because of its wide variety of climates and habitats, the Iberian Peninsula harbors a rich and diverse arachnological fauna, including numerous endemisms. This is especially true for habitats like arid and semiarid areas. Many of them are threatened despite containing interesting –and sometimes uncharacterised– fauna, such as the huntsman spiders in the genus <em>Cebrennus</em>.</div><div>Previously known to occur from North Africa to the Middle East, new sightings of these spiders in Europe have drawn attention. Here, we use morphological and molecular data to describe a new species of <em>Cebrennus</em> from specimens collected in eastern Spain. Additionally, we use genetic data to place the new species, <em>Cebrennus herculis</em> sp. n., in a phylogenetic context and speculate on the biogeographic processes that lead to its presence in Europe.</div><div>Genetic distances among individuals of <em>C. herculis</em> sp. n. were low for the three molecular markers analysed (COI, 18S and 28S). Our phylogenetic tree recovered the monophyly of the Iberian <em>Cebrennus</em>, and placed them as sister to the only African representative with genetic data available, <em>Cebrennus rungsi</em>. Furthermore, divergence time analysis revealed a Palaeogene-Neogene split between the Iberian lineage and <em>C. rungsi,</em> compatible with an allopatric speciation following one of the ancient connections between Europe and Africa landmasses.</div><div>These findings show that habitats such as arid and semiarid areas still hide new and interesting diversity, underscoring the importance of preserving them.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 178-186"},"PeriodicalIF":1.5,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-21DOI: 10.1016/j.jcz.2025.08.006
Jociel Klleyton Santos Santana , Jader de Oliveira , João Aristeu da Rosa
Rhodnius is a genus with unresolved taxonomic questions. These insects are potential vectors of Trypanosoma spp., including the etiological agent of Chagas disease. Their presence in urban areas has become increasingly frequent, and in some cases, immature specimens are observed in the absence of adults, making identification on the species level difficult. Given their vector capacity and the scarcity of taxonomic studies on immatures, this study aims to describe morphologically, as well as through linear and geometric morphometry, the five nymphal instars of R. montenegrensis, R. nasutus, R. neglectus, R. neivai, and R. stali. The morphological description of the immature instars allows for differentiation among the studied species. In linear morphometry, at least one trait in all instars showed a statistically significant difference between groups (p < 0.05). Geometric morphometry of the head highlighted differences that segregated the species; however, the pronotum was not an informative structure. The techniques used in this study enabled the specific identification of the analyzed species. As with Rhodnius adults, the head is highly informative for nymphs and should continue to be explored in taxonomic studies.
{"title":"Morphological description and morphometry of the nymphal instars of five species of Rhodnius Stål, 1859 (Hemiptera: Reduviidae: Triatominae)","authors":"Jociel Klleyton Santos Santana , Jader de Oliveira , João Aristeu da Rosa","doi":"10.1016/j.jcz.2025.08.006","DOIUrl":"10.1016/j.jcz.2025.08.006","url":null,"abstract":"<div><div><em>Rhodnius</em> is a genus with unresolved taxonomic questions. These insects are potential vectors of <em>Trypanosoma</em> spp., including the etiological agent of Chagas disease. Their presence in urban areas has become increasingly frequent, and in some cases, immature specimens are observed in the absence of adults, making identification on the species level difficult. Given their vector capacity and the scarcity of taxonomic studies on immatures, this study aims to describe morphologically, as well as through linear and geometric morphometry, the five nymphal instars of <em>R</em>. <em>montenegrensis</em>, <em>R</em>. <em>nasutus</em>, <em>R</em>. <em>neglectus</em>, <em>R</em>. <em>neivai</em>, and <em>R</em>. <em>stali</em>. The morphological description of the immature instars allows for differentiation among the studied species. In linear morphometry, at least one trait in all instars showed a statistically significant difference between groups (p < 0.05). Geometric morphometry of the head highlighted differences that segregated the species; however, the pronotum was not an informative structure. The techniques used in this study enabled the specific identification of the analyzed species. As with <em>Rhodnius</em> adults, the head is highly informative for nymphs and should continue to be explored in taxonomic studies.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 165-177"},"PeriodicalIF":1.5,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Definition of the pygmy grasshopper subfamily Criotettiginae (Orthoptera: Tetrigidae) with a preliminary catalogue of genera","authors":"Madan Subedi , Niko Kasalo , Josip Skejo","doi":"10.1016/j.jcz.2025.08.003","DOIUrl":"10.1016/j.jcz.2025.08.003","url":null,"abstract":"<div><div>A new pygmy grasshopper subfamily is established, Criotettiginae Kevan, 1966 <strong>subfam. nov</strong>. to include 24 genera—<em>Acanthalobus</em> Hancock, 1904, <em>Afrocriotettix</em> Günther, 1938b, <em>Amphinotulus</em> Günther, 1939, <em>Apterotettix</em> Hancock, 1904, <em>Aryalidonta</em> Subedi & Kasalo, 2023, <em>Bolivaritettix</em> Günther, 1939, <em>Bolotettix</em> Hancock, 1907, <em>Cotysoides</em> Zheng & Jiang, 2000, <em>Criotettix</em> Bolívar, 1887, <em>Dasyleurotettix</em> Rehn, 1904, <em>Eucriotettix</em> Hebard, 1930, <em>Hyboella</em> Hancock, 1915, <em>Indomiriatra</em> Tinkham, 1939, <em>Loxilobus</em> Hancock, 1904, <em>Miriatroides</em> Zheng & Jiang, 2002, <em>Probolotettix</em> Günther, 1939, <em>Rhopalina</em> Tinkham, 1939, <em>Rostella</em> Hancock, 1913, <em>Spadotettix</em> Hancock, 1910, <em>Syzygotettix</em> Günther, 1938b, <em>Tettitelum</em> Hancock, 1915 (tentative assignment), <em>Thoradonta</em> Hancock, 1909, <em>Timoritettix</em> Günther, 1971 and <em>Yunnantettix</em> Zheng, 1995. The new subfamily is defined based on clear morphological apomorphies and previously published phylogenetic data evidencing a well-supported clade. Members of this subfamily have until now been scattered across the Tetrigidae subfamilies—Cladonotinae (<em>Yunnantettix</em>), Metrodorinae (<em>Cotysoides, Hyboella, Indomiriatra, Miriatroides, Rostella, and Timoritettix</em>), and Tetriginae (<em>Afrocriotettix</em>)—or have been without subfamily assignment (<em>Bolotettix, Probolotettix, Syzygotettix, Tettitelum</em>). Criotettiginae consists of tribes Criotettigini and Thoradontini, the monophyly of which has to be tested. Ten new combinations are proposed—(1) <em>Acanthalobus afghanus</em> (Čejchan, 1969) <strong>comb. nov.</strong> for <em>Criotettix afghanus</em> (2) <em>Acanthalobus gidhavensis</em> (Gupta & Chandra, 2018) <strong>comb. nov.</strong> for <em>Criotettix gidhavensis</em>; (3) <em>Acanthalobus gariyabandicus</em> (Gupta & Chandra, 2018) <strong>comb. nov.</strong> for <em>Criotettix gariyabandicus;</em> (4) <em>Acanthalobus latifrons</em> (Hebard, 1930) <strong>comb. nov.</strong> for <em>Criotettix latifrons</em>; (5) <em>Aryalidonta subulata</em> (Bolívar, 1887) <strong>comb. nov.</strong> for <em>Criotettix subulatus</em>; (6) <em>Loxilobus convexus</em> (Deng, Zheng & Wei, 2007) <strong>comb. nov</strong>. for <em>Mazarredia convexa,</em> (7) <em>Loxilobus convexaoides</em> (Deng & Zheng, 2015) <strong>comb. nov</strong>. for <em>Mazarredia convexaoides</em>; (8) <em>Loxilobus shiwanshanensis</em> (Deng & Zheng, 2015) <strong>comb. nov</strong>. of <em>Mazarredia shiwanshanensis</em>; (9) <em>Loxilobus neesoon</em> (Tan et Storozhenko, 2018) <strong>comb. nov</strong>. for <em>Eucriotettix neesoon</em>; (10) <em>Loxilobus simulans</em> (Tan et Storozhenko, 2017) for <em>Eucriotettix simulans</em>; and (11) <em>Yunnantettix yunnanensis</em> (Zheng, 1993) <strong>c","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 133-151"},"PeriodicalIF":1.5,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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