Systematic Entomology最新文献

{"title":"Evolutionary history, novel lineages and symbiont coevolution in the ant tribe Camponotini (Hymenoptera: Formicidae)","authors":"Philip S. Ward,&nbsp;Brian L. Fisher,&nbsp;Jennifer J. Wernegreen,&nbsp;Bonnie B. Blaimer","doi":"10.1111/syen.12678","DOIUrl":"https://doi.org/10.1111/syen.12678","url":null,"abstract":"<p>Many insect groups have acquired obligate microbial symbionts, and the resulting associations can have important ecological and evolutionary consequences. A notable example among ants is the species-rich tribe Camponotini, whose members derive nutritional benefits from a vertically inherited bacterial endosymbiont, <i>Blochmannia</i>. We generate ultraconserved element (UCE) phylogenomic data for 220 ingroup and 5 outgroup taxa to reconstruct a detailed evolutionary history of the Camponotini, including the inference of divergence times and dispersal events. Under multiple modes of analysis, including both concatenation and species-tree approaches, we recover a well-supported backbone phylogeny comprising eight lineages: three large genera (<i>Camponotus</i>, <i>Colobopsis</i>, <i>Polyrhachis</i>) and several smaller genera or clusters of genera. Three novel lineages are uncovered that cannot be placed in any existing genus: <i>Lathidris</i> <b>gen. n</b>., from the mountains of Mesoamerica; <i>Retalimyrma</i> <b>gen. n</b>., from the Indian Himalayas; and <i>Uwari</i> <b>gen. n</b>., from eastern Asia. The species in these new genera were described and placed erroneously in <i>Camponotus</i>. The tribe Camponotini is estimated to have a crown origin in the Eocene (median age 38.4 Ma), with successively younger crown ages for <i>Colobopsis</i> (22.5 Ma), <i>Camponotus</i> (18.6 Ma) and <i>Polyrhachis</i> (18.5 Ma). We infer an Australasian or Indomalayan origin for the tribe, with multiple dispersal events to the Afrotropics, Palearctic region, and New World. Phylogenetic analysis of selected <i>Blochmannia</i> genes from a subset of 97 camponotine taxa yields results that are largely congruent with the ant host phylogeny, at least for well-supported nodes, but we find evidence that <i>Blochmannia</i> from some old lineages—especially <i>Lathidris</i>—may have discordant histories, suggesting possible lability of this symbiosis in the early evolution of camponotine ants.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"646-676"},"PeriodicalIF":4.7,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/syen.12678","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Systematics and biogeography of the Holarctic dragonfly genus Somatochlora (Anisoptera: Corduliidae)","authors":"Aaron Goodman,&nbsp;John Abbott,&nbsp;Jesse W. Breinholt,&nbsp;Seth Bybee,&nbsp;Paul B. Frandsen,&nbsp;Rob Guralnick,&nbsp;Vincent J. Kalkman,&nbsp;Manpreet Kohli,&nbsp;Lacie Newton,&nbsp;Jessica L. Ware","doi":"10.1111/syen.12672","DOIUrl":"https://doi.org/10.1111/syen.12672","url":null,"abstract":"<p>The striped emeralds (<i>Somatochlora</i> Selys) are a Holarctic group of medium-sized metallic green dragonflies that mainly inhabit bogs and seepages, alpine streams, lakes, channels and lowland brooks. With 42 species they are the most diverse genus within Corduliidae (Odonata: Anisoptera). Systematic, taxonomic and biogeographic resolution within <i>Somatochlora</i> remains unclear, with numerous hypotheses of relatedness based on wing veins, male claspers (epiproct and paraprocts) and nymphs. Furthermore, <i>Somatochlora borisi</i> was recently described as a new genus (<i>Corduliochlora</i>) based on 17 morphological characters, but its position with respect to <i>Somatochlora</i> is unclear. We present a phylogenetic reconstruction of <i>Somatochlora</i> using Anchored Hybrid Enrichment (AHE) sequences of 40/42 <i>Somatochlora</i> species (including <i>Corduliochlora borisi</i>). Our data recover the monophyly of <i>Somatochlora</i>, with <i>C. borisi</i> recovered as sister to the remaining <i>Somatochlora</i>. We also recover three highly supported clades and one of mixed support; this lack of resolution is most likely due to incomplete lineage sorting, third-codon position saturation based on iterative analyses run on variations of our dataset and hybridization. Furthermore, we constructed a dataset for all species based on 20 morphological characters from the literature which were used to evaluate phylogenetic groups recovered with molecular data; the data support the validity of <i>Corduliochlora</i> as a genus distinct from <i>Somatochlora</i>. Finally, divergence time estimation and biogeographic analysis indicate <i>Somatochlora</i> originated in the Western North Hemisphere during the Miocene, with three dispersal events to the Eastern North Hemisphere (11, 7 and 5 Ma, respectively) across the Beringian Land Bridge.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"585-610"},"PeriodicalIF":4.7,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An insect †Archaeopteryx: Cretaceous amber fossil elucidates the evolution of complex host detection and ovipositor mechanisms in parasitoid woodwasps (Hymenoptera: Orussoidea)","authors":"Lars Vilhelmsen,&nbsp;Brendon E. Boudinot,&nbsp;Jörg U. Hammel,&nbsp;Hiroshi Nakamine,&nbsp;Shûhei Yamamoto","doi":"10.1111/syen.12673","DOIUrl":"https://doi.org/10.1111/syen.12673","url":null,"abstract":"<p>We describe †<i>Cretovelona orussopteryx</i> n. gen. &amp; sp., a female orussoid from mid-Cretaceous Kachin amber. We examine the fossil with synchrotron scanning and integrate it into an existing morphological data set for Orussoidea. †<i>Cretovelona</i> is placed as sister to crown group Orussoidea by Bayesian phylogenetic analyses. It is unique in displaying a combination of plesiomorphic (e.g. 12 antennomeres, exposed ovipositor sheaths, partly internalized ovipositor that does not extend further than anterior part of abdomen) and apomorphic characters (e.g. antenna with club, fore tarsus 3-segmented) that display intermediate stages in the evolution of the host detection mechanism and the fully internalized ovipositor in extant Orussidae. The wing venation of †<i>Cretovelona</i> is even more reduced than observed in extant Orussidae, likely correlated with the small body size (&lt;2 mm). Tracing the changes in body size across the orussoid tree indicates that the stem group underwent a size reduction event in the Cretaceous, something that might have influenced character evolution in for example wing venation and internalization of the ovipositor. †<i>Cretovelona</i> is a rare example of a transitional fossil that elucidates the evolution of complex features when adapting to a highly specialized lifestyle, in this case detecting and targeting hosts deep inside wood. We propose to recognize only the family Orussidae within Orussoidea. Orussidae comprises the crown group Orussoidea, including all Cenozoic fossils described so far. The stem group taxa, all Mesozoic fossils, are not assigned to any specific family within Orussoidea. Zoobank Registration: urn:lsid:zoobank.org:pub:397F76A5-7467-4BCA-9963-6A380EC05200.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"630-645"},"PeriodicalIF":4.7,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/syen.12673","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revision of subfamily Calonecrinae (Coleoptera: Cucujoidea: Nitidulidae) systematics and natural history of a mysterious group","authors":"Min Hyeuk Lee,&nbsp;Seunghyun Lee,&nbsp;Josef Jelínek,&nbsp;Richard A. B. Leschen,&nbsp;Ming Bai,&nbsp;Sheryl A. Yap,&nbsp;Seunghwan Lee","doi":"10.1111/syen.12671","DOIUrl":"https://doi.org/10.1111/syen.12671","url":null,"abstract":"<p>Calonecrinae represent a unique but small subfamily of Nitidulidae that is endemic to South Asia. Their habitats, the South Asian lowland forests, are under the imminent threat of degradation, posing a risk of rapid extinction for these species in their specific locales. Despite the looming threat to their existence, our understanding of this enigmatic group remains limited. We conducted an examination of museum and newly collected specimens, alongside a review of the literature, which led to the discovery of a new species, <i>Calonecrus mindanaoensis</i> <b>sp. nov</b>., from Mindanao, Philippines. Additionally, we provide detailed illustrations of various type specimens of the genus <i>Calonecrus</i> Thomson. For the first time, the immature stages of Calonecrinae were described based on <i>Calonecrus jendeki</i>, with detailed photographs including scanning electron microscopy images. Additionally, their natural history was uncovered, revealing that all life stages are uniquely adapted to complete their entire life cycle in sticky sap. We reevaluate the phylogenetic placement of the Calonecrinae based on phylogenetic analyses of mitochondrial genomes. Calonecrinae positioned within the Epuraeinae clade and are phylogenetically related to the epuraeine genus <i>Trimenus</i>. Consequently, this study proposes reclassifying Calonecrinae as Calonecrini <b>stat. nov</b>., an extremely modified tribe within the Epuraeinae. This research significantly broadens our understanding of the ecology of Calonecrini. Along with the taxonomic and phylogenetic results, we provide a solid foundation for the conservation of this group and further research into their unique habitat preferences and evolutionary behaviour.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"568-584"},"PeriodicalIF":4.7,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparison of phylogenomic inference pipelines for low-coverage whole-genome sequencing in Formica ants","authors":"Junxia Zhang,&nbsp;Long Lin,&nbsp;Yannan Mu,&nbsp;Alan Brelsford,&nbsp;Jessica Purcell","doi":"10.1111/syen.12670","DOIUrl":"https://doi.org/10.1111/syen.12670","url":null,"abstract":"<p>A rapid proliferation in the availability of whole genome sequences (WGS), often with relatively low read depth, offers an unprecedented opportunity for phylogenomic advances using publicly available data, but there are several key challenges in applying these data. Using low-coverage WGS data for the ant species of <i>Formica</i>, we conducted detailed comparisons on two different analytical pipelines (reference-based vs. de novo genome assembly), four types of datasets (5-kbp-window, ultra-conserved element [UCE], single-copy ortholog [BUSCO] and mitogenome), and a series of analytical procedures (e.g. concatenation vs. coalescent analyses) to identify which are robust to typical WGS data. The results show that at a shallow scale of phylogenetic relationships of closely related species 5-kbp-windows from the reference-based pipeline and UCEs from the de novo assemblies are more successful than the BUSCOs in recovering informative markers for phylogenetic inference. Compared with concatenation analyses, coalescent analyses often resulted in disparate deeper relationships in the phylogeny. This study also uncovers evident mito-nuclear discordance and demonstrates genome-wide gene conflicts in phylogenetic signals, both pointing to possible incomplete lineage sorting and/or hybridization during the early, rapid radiation of <i>Formica</i> ants. Divergence dating analyses show that different types of data and analytical methods could result in inconsistent time estimates, highlighting the potential need for multiple approaches to better understand species divergence. The strengths and weaknesses of different analytical pipelines and strategies are discussed. Findings from this study provide valuable insights for large-scale phylogenomic projects using WGS data.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"611-629"},"PeriodicalIF":4.7,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular phylogeny of the tribe Luciini (Lepidoptera: Lycaenidae): systematics and life history evolution","authors":"Michael F. Braby,&nbsp;Naomi E. Pierce,&nbsp;David J. Lohman","doi":"10.1111/syen.12667","DOIUrl":"https://doi.org/10.1111/syen.12667","url":null,"abstract":"<p>The butterfly tribe Luciini (Theclinae), which currently includes 22 species, is restricted to Australia and mainland New Guinea and its adjacent islands. All species appear to have obligate, highly specialised associations with ants, and half of them are known or assumed to be myrmecophagous. Despite considerable progress in taxonomy and classification, no robust phylogenetic hypothesis currently exists for the tribe that could form a framework for a better understanding of the evolution of ant attendance in the group. Here, we reconstruct the phylogeny of the Luciini based on an extensive molecular dataset (up to 391 genetic loci for 101 ingroup samples representing 17 (77%) species and all four genera). Bayesian and maximum likelihood analyses found that the genus <i>Pseudodipsas</i> C. &amp; R. Felder is polyphyletic, with the species <i>Pseudodipsas cephenes</i> Hewitson distantly related to the type species <i>Pseudodipsas eone</i> (C. &amp; R. Felder). Comparative morphological evidence corroborates our molecular phylogenetic results and supports the establishment of a new monotypic genus, <i>Paradipsas</i> Braby, <b>gen. nov</b>., to accommodate the species <i>Paradipsas cephenes</i> (Hewitson) <b>comb. nov</b>. Phylogenetic relationships among genera in our well-supported trees are as follows: <i>Lucia</i> Swainson + (<i>Pseudodipsas</i> + (<i>Paralucia</i> Waterhouse &amp; R.E. Turner + (<i>Paradipsas</i> + <i>Acrodipsas</i> Sands))). The ancestor of the tribe most likely associated with Dolichoderinae ants (possibly arboreal <i>Anonychomyrma</i> Donisthorpe) in wet biomes during the Eocene (stem-group: 37.91 ± 2.66 million years ago ‘Mya’). Differentiation of three of the butterfly genera in the Oligocene-Miocene (crown-group: 27.17 ± 3.75 Mya) involved shifts to other dolichoderine species (subterranean species of <i>Anonychomyrma</i> for <i>Paralucia</i>) or genera (<i>Iridomyrmex</i> Mayr for <i>Lucia</i>, <i>Papyrius</i> Shattuck for <i>Acrodipsas</i>) coinciding with shifts to drier biomes. Associations with other ant subfamilies represent more recent, secondary shifts within Luciini genera in the Miocene–Pliocene, and include single ant shifts to Formicinae (<i>Notoncus</i> Emery for <i>Paralucia pyrodiscus</i> (Rosenstock)) and Myrmicinae (<i>Crematogaster</i> Lund for <i>Acrodipsas</i> spp.). These patterns strongly suggest obligate ant attendance has been pivotal in the diversification of Luciini. Aspects of the ecology and biology of <i>Paradipsas cephenes</i> <b>comb. nov</b>. are clarified, particularly its critical habitat and attendant ant <i>Anonychomyrma gilberti</i> (Forel).</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"519-539"},"PeriodicalIF":4.7,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/syen.12667","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogenomics reveals the timescale of diversification in Amblycera","authors":"Tomáš Najer,&nbsp;Jorge Doña,&nbsp;Aleš Buček,&nbsp;Andrew D. Sweet,&nbsp;Oldřich Sychra,&nbsp;Kevin P. Johnson","doi":"10.1111/syen.12668","DOIUrl":"https://doi.org/10.1111/syen.12668","url":null,"abstract":"<p>Recently, genomic approaches have helped to resolve phylogenetic questions in many groups of parasitic organisms, including lice (Phthiraptera). However, these approaches have still not been applied to one of the most diverse groups of lice, Amblycera. To fill this gap, we applied phylogenomic methods based on genome-level exon sequence data to resolve the relationships within and among the families of Amblycera. Our phylogenomic trees support the monophyly of the families Ricinidae and Laemobothriidae. However, the families Trimenoponidae and Gyropidae are not monophyletic, indicating that they should be merged into a single family. The placement of <i>Trinoton</i> is unstable with respect to Boopiidae and Menoponidae, and we suggest recognizing Trinotonidae as a separate family. At the genus level, the genera <i>Colpocephalum</i>, <i>Hohorstiella</i>, <i>Menacanthus</i> and <i>Ricinus</i> were recovered as paraphyletic. Regarding generic complexes, the tree revealed the <i>Menacanthus</i> complex to be monophyletic, but the <i>Colpocephalum</i> complex paraphyletic, including genera not traditionally placed in this group. Dating analysis suggests that the divergence among families of Amblycera occurred shortly after the Cretaceous–Paleogene boundary 66 Mya. Cophylogenetic analyses revealed many host-switching events during the diversification of Amblycera, indicating that the evolutionary history of Amblycera does not tightly mirror that of its hosts. Ancestral host reconstructions revealed that the ancestral host of Amblycera was most likely a bird, with two host switching events to mammals. By combining phylogenomics, molecular dating and cophylogenetic analyses, we provide the first large-scale picture of amblyceran evolution, which will serve as a basis for future studies of this group.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"540-553"},"PeriodicalIF":4.7,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/syen.12668","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogeny of euophryine jumping spiders from ultra-conserved elements, with evidence on the intersexual coevolution of genitalia (Araneae: Salticidae: Euophryini)","authors":"Zhaoyi Li,&nbsp;Feng Zhang,&nbsp;Wenqiang Zhang,&nbsp;Kiran Marathe,&nbsp;Wayne P. Maddison,&nbsp;Junxia Zhang","doi":"10.1111/syen.12669","DOIUrl":"https://doi.org/10.1111/syen.12669","url":null,"abstract":"<p>Knowledge of phylogeny is required to understand the evolution of highly diverse groups such as the euophryine jumping spiders, a lineage showing high species and morphological diversity. In this study, we applied a phylogenomic approach using ultra-conserved elements (UCE) obtained from 145 taxa to infer the phylogeny of euophryine jumping spiders. The results provide a well-supported phylogenetic framework for Euophryini, especially for the deeper relationships, in which the monophyly of Euophryini, as well as most clades corresponding to a genus or a group of closely related genera, are strongly supported. Additionally, the evolutionary patterns of male embolus length and female copulatory duct length of 117 euophryine species were investigated through ancestral character state reconstruction and phylogenetically independent contrast analyses using the UCE phylogenetic framework. The results suggest strongly that the evolution of the lengths of male embolus and female copulatory duct in Euophryini is positively correlated. The common ancestor of Euophryini likely had relatively short embolus and copulatory duct, followed by repeated lengthening or shortening of both structures in different lineages. Possible mechanisms that may have caused this intersexual coevolution pattern in Euophryini are discussed. This study advances our understandings of the phylogeny, systematics and genitalic evolution of euophryines, providing a solid foundation for future studies on the diversification and evolution of this jumping spider group.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"554-567"},"PeriodicalIF":4.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogenomic insights into the relationship and the evolutionary history of planthoppers (Insecta: Hemiptera: Fulgoromorpha)\u0000 基于基因组的系统发育分析为蜡蝉亚目(Fulgoromorpha)的系统发育关系及进化提供新见解","authors":"Junchen Deng,&nbsp;Adam Stroiński,&nbsp;Jacek Szwedo,&nbsp;Hamid Reza Ghanavi,&nbsp;Etka Yapar,&nbsp;Diego Castillo Franco,&nbsp;Monika Prus-Frankowska,&nbsp;Anna Michalik,&nbsp;Niklas Wahlberg,&nbsp;Piotr Łukasik","doi":"10.1111/syen.12666","DOIUrl":"https://doi.org/10.1111/syen.12666","url":null,"abstract":"<p>Planthoppers (Hemiptera: Fulgoromorpha) are a species-rich and globally distributed insect clade with high economic, ecological and evolutionary importance. However, the relationships among planthopper lineages and families remain unclear. Previous efforts based on inconsistent morphological traits, a few genes or limited sampling often resulted in conflicting tree topologies. Here, we used genome-level data to assemble 1164 nuclear single-copy genes and 13 mitochondrial protein-coding genes for 149 planthopper species representing 19 out of 21 extant families. Additional markers were added from published mitogenomes, expanding our sampling to 285 species. These markers were used for maximum likelihood–based tree inference and dating analyses. The newly inferred phylogenies validated well-accepted relationships and recovered novel placements for several taxa, including the family Achilixiidae and species from the tribe Lyncidini and genus <i>Madagascaritia</i> in Dictyopharidae and Fulgoridae. Based on molecular and morphological evidence, we proposed taxonomic changes including the establishment of a new family Borysthenidae stat. rev. within Delphacoidea and a new superfamily Meenoploidea superfam. nov. with redefined Kinnaridae stat. rev. and Meenoplidae stat. rev. The time analyses based on 57 nuclear markers and 30 fossils dated the origin of extant Fulgoromorpha back to Guadalupian, Permian (~263 Ma), close to the maximum constraint at 267.3 Ma, while applying an older root constraint resulted in an origin in Mississippian, Carboniferous (~332 Ma). While future sampling of unstudied fauna in unexplored regions or habitats may change the topology, the current phylogenomic analysis will serve as a solid foundation for research into planthopper ecology, evolution and significance.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"495-518"},"PeriodicalIF":4.7,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/syen.12666","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogenomic approach to integrative taxonomy resolves a century-old taxonomic puzzle and the evolutionary history of the Acromyrmex octospinosus species complex","authors":"Daniela Mera-Rodríguez,&nbsp;Hermógenes Fernández-Marín,&nbsp;Christian Rabeling","doi":"10.1111/syen.12665","DOIUrl":"https://doi.org/10.1111/syen.12665","url":null,"abstract":"<p>Accurately delimiting species boundaries is essential for understanding biodiversity. Here, we assessed the taxonomy of the leaf-cutting ants in the <i>Acromyrmex octospinosus</i> (Reich) species complex using an integrative approach incorporating morphological, population genetic, phylogenetic and biogeographical data. We sampled populations across the biogeographic distribution of the species complex and reconstructed their evolutionary relationships using ultraconserved elements (UCEs) as molecular markers. We evaluated traditional morphological characters used to distinguish putative taxa and performed species delimitation analyses to investigate divergence between evolutionary lineages. Our results support the hypothesis that the <i>A. octospinosus</i> species complex consists of two species: the widely distributed and polymorphic species <i>A. octospinosus</i> and its inquiline social parasite <i>A. insinuator</i> Schultz et al. We consider <i>A. echinatior</i> (Forel) <b>syn. nov</b>. and <i>A. volcanus</i> Wheeler <b>syn. nov</b>. as well as the subspecies <i>A. octospinosus cubanus</i> Wheeler <b>syn. nov</b>., <i>A. octospinosus ekchuah</i> Wheeler <b>syn. nov</b>. and <i>A. octospinosus inti</i> Wheeler <b>syn. nov</b>. as junior synonyms of <i>A. octospinosus</i>. We also investigated the biogeographic history of the species complex and the evolutionary origin of the social parasite <i>A. insinuator</i>. We inferred that <i>A. octospinosus</i> originated during the late Miocene approximately 6.9 Ma ago in the Neotropical rainforest. <i>Acromyrmex insinuator</i> shared a common ancestor with <i>A. octospinosus</i> approximately 3.4 Ma ago, with a crown-group age of approximately 0.9 Ma. Our phylogeny supports the hypothesis that the inquiline social parasite speciated via the intra-specific route of social parasite evolution in direct sympatry from its host. Our findings reshape our understanding of the <i>A. octospinosus</i> species complex and provide a foundation for future studies of <i>Acromyrmex</i> leaf-cutting ants.</p>","PeriodicalId":22126,"journal":{"name":"Systematic Entomology","volume":"50 3","pages":"469-494"},"PeriodicalIF":4.7,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/syen.12665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}