{"status":"ok","message-type":"work-list","message-version":"1.0.0","message":{"facets":{},"total-results":15,"items":[{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T13:53:17Z","timestamp":1791553997999,"version":"4.3.4"},"reference-count":56,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T00:00:00Z","timestamp":1756684800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Zhejiang Province","award":["LY23C040002"],"award-info":[{"award-number":["LY23C040002"]}]},{"name":"Natural Science Foundation of Zhejiang Province","award":["32470475"],"award-info":[{"award-number":["32470475"]}]},{"name":"Natural Science Foundation of China","award":["LY23C040002"],"award-info":[{"award-number":["LY23C040002"]}]},{"name":"Natural Science Foundation of China","award":["32470475"],"award-info":[{"award-number":["32470475"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Insects"],"abstract":"<jats:p>Bristletails (Microcoryphia) represent a relatively understudied group of class Insecta. These wingless hexapods, which retain numerous plesiomorphic structures, remain less well understood compared to most other insect lineages. Through detailed morphological examination of specimens collected from southern China, we describe six new species (Pedetontus (Verhoeffilis) elegans\u00a0sp. n. from Zhejiang; P. (V.) hezhouensis\u00a0sp. n., P. (V.) jinxiuensis\u00a0sp. n., and P. (V.) nanningensis\u00a0sp. n. from Guangxi; and P. (V.) shenzhenensis\u00a0sp. n. and P. (V.) xanthospilus\u00a0sp. n. from Guangdong) of subgenus Verhoeffilis Paclt, 1972. This subgenus is distinguished from other members of the Petrobiinae by several diagnostic features: paired ocelli shoe-shaped (fusiform-shaped) and submedian; two pairs of retractile vesicles on abdominal segments II\u2013V; parameres restricted to coxite IX; penis opening small and apical; male genitalia not exceeding coxite IX; and ovipositor of primary type. The new species can be distinguished from known species and each other by the morphology of the compound eyes, maxilla, labial palps, legs, and genitalia; here, we provide detailed illustrations, tables, and descriptions. Furthermore, we sequence the COX1 gene to construct a phylogenetic tree of Microcoryphia. This contribution increases the total number of reported Pedetontus species in China to seventeen.<\/jats:p>","DOI":"10.3390\/insects16090916","type":"journal-article","created":{"date-parts":[[2025,9,2]],"date-time":"2025-09-02T16:05:22Z","timestamp":1756829122000},"page":"916","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Six New Species of Genus Pedetontus Silvestri, 1911 (Microcoryphia: Machilidae), from Southern China"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-8411-7781","authenticated-orcid":false,"given":"Chen-Yang","family":"Shen","sequence":"first","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4592-8550","authenticated-orcid":false,"given":"Ting","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie-Hong","family":"Ji","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7679-2548","authenticated-orcid":false,"given":"Jia-Yong","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"},{"name":"Key Laboratory of Wildlife Biotechnology, Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,9,1]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Orden Microcoryphia","volume":"38","author":"Baltanas","year":"2015","journal-title":"Ibero Divers. Entomol\u00f3gica"},{"key":"ref_2","unstructured":"Sturm, H., and Machida, R. (2001). Archaeognatha. Handbook of Zoology, Walter de Gruyter."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"510","DOI":"10.1098\/rsbl.2009.0029","article-title":"Gliding Hexapods and the Origins of Insect Aerial Behaviour","volume":"5","author":"Yanoviak","year":"2009","journal-title":"Biol. Lett."},{"key":"ref_4","unstructured":"Grimaldi, D.A., and Engel, M.S. (2006). Evolution of the Insects, Cambridge Univ. Press. Repr."},{"key":"ref_5","first-page":"225","article-title":"Taxonomy of Zygentoma and Microcoryphia: Historical Overview, Present Status and Goals for the New Millennium","volume":"46","author":"Mendes","year":"2002","journal-title":"Pedobiologia"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"887","DOI":"10.1134\/S0013873813070105","article-title":"A New Species of the Bristletail Genus Pedetontus Silv. (Thysanura, Machilidae) from Thailand","volume":"93","author":"Kaplin","year":"2013","journal-title":"Entmol. Rev."},{"key":"ref_7","unstructured":"Mendes, L.F. (1990). An Annotated List of Generic and Specific Names of Machilidae (Microcoryphia, Insecta) with Identification Keys for the Genera and Geographical Notes, Instituto de Investiga\u00e7\u00e3o Cient\u00edfica Tropical."},{"key":"ref_8","first-page":"361","article-title":"Quelques Formes Nouvelles de La Famille Des Machilides","volume":"6","author":"Silvestri","year":"1907","journal-title":"Ann. Sci. Nat."},{"key":"ref_9","first-page":"325","article-title":"Note sui Machilidae. III. Descrizione di un nuovo genere e di sei nuove specie","volume":"3","author":"Silvestri","year":"1906","journal-title":"Redia"},{"key":"ref_10","first-page":"1","article-title":"Machilidae (Thysanura). Entomologische Ergebnisse der schwedischen Kamtchatka-Expedition 1920\u20131922","volume":"17","author":"Silvestri","year":"1925","journal-title":"Ark. F\u00f6r Zool."},{"key":"ref_11","first-page":"324","article-title":"Contributo Alla Conoscenza Dei Machilidae Dell\u2019America Settentrionale","volume":"5","author":"Silvestri","year":"1911","journal-title":"Bolletino Lab. Zool. Gen. Agrar. Della R. Sc. Super. d\u2019Agricoltura Portici"},{"key":"ref_12","first-page":"103","article-title":"Descripzione Di Alcuni Machilidae (Thysanura) Della Cina","volume":"3","author":"Silvestri","year":"1936","journal-title":"Notes D\u2019entomologie Chin."},{"key":"ref_13","first-page":"283","article-title":"Contributto Alla Conoscenza Dei Machilidae (Insecta, Thysanura) Del Giappone","volume":"32","author":"Silvestri","year":"1943","journal-title":"Bolletino Lab. Zool. Gen. Agrar. Della R. Sc. Super. d\u2019Agricoltura Portici"},{"key":"ref_14","first-page":"3","article-title":"Possibilities and Problems of Morphological Taxonomy Shown by North American Representatives of the Subgenus Pedetontus s. str. and Petridiobius canadensis (Archaeognatha, Machilidae, Petrobiinae)","volume":"48","author":"Sturm","year":"2001","journal-title":"Dtsch. Entomol. Z."},{"key":"ref_15","first-page":"195","article-title":"Pedetontus gershneri, a New Species of Machilidae from the Interior Highlands of North America (Insecta: Microcoryphia)","volume":"106","author":"Allen","year":"1995","journal-title":"Entomol. News"},{"key":"ref_16","unstructured":"Kaplin, V.G. (1980). New species of bristletails (Microcoryphia, Machilidae) from the Kuril Islands and Primorsky Kari. Txonomy Insects Far East., 3\u20139."},{"key":"ref_17","first-page":"19","article-title":"Two New Species of Microcoryphia (Insecta) from Korea","volume":"8","author":"Lee","year":"1992","journal-title":"Korean J. Syst. Zool."},{"key":"ref_18","first-page":"220","article-title":"A New Species of the Genus Pedetontus from Japan (Insecta, Thysanura)","volume":"53","author":"Machida","year":"1980","journal-title":"Annot. Zool. Jpn."},{"key":"ref_19","first-page":"15","article-title":"Sur Quelques Microcoryphia de l\u2019Asie Orientale: Notes et Descriptions (Insecta; Apterygota)","volume":"11","author":"Mendes","year":"1981","journal-title":"Nouv. Rev. d\u2019Entomologie"},{"key":"ref_20","first-page":"67","article-title":"New Contribution towards the Knowledge of the Northern Korean Thysanurans (Microcoryphia and Zygentoma: Insecta)","volume":"18","author":"Mendes","year":"1991","journal-title":"Garcia Orta"},{"key":"ref_21","first-page":"247","article-title":"Two Species of Pedetontus from Amami-o-Sima (Thysanura: Machilidae)","volume":"28","author":"Uchida","year":"1960","journal-title":"Entomol. Soc. Jpn."},{"key":"ref_22","first-page":"249","article-title":"Pedetontus from Formosa (Thysanura: Machilidae)","volume":"1","author":"Uchida","year":"1965","journal-title":"Spec. Bull. Lepidopterol. Soc. Jpn."},{"key":"ref_23","unstructured":"Wygodzinsky, P.W. (1980). Survey of the Microcoryphia (Insecta) of the Northeastern United States and Adjacent Provinces of Canada, American Museum of Natural History."},{"key":"ref_24","first-page":"77","article-title":"Two new species of bristletail from the Tianmu Mountain (Microcoryphia, Machilidae)","volume":"10","author":"Xue","year":"1991","journal-title":"Contrib. Shanghai Inst. 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Am."},{"key":"ref_28","first-page":"36","article-title":"A new species of the genus Pedetontinus (Microcoryphia, Machilidae) from China","volume":"36","author":"Chen","year":"2011","journal-title":"Acta Zootaxonomica Sin."},{"key":"ref_29","first-page":"882","article-title":"A New Species of the Genus Haslundichilis (Microcoryphia, Machilidae) from China and Redescription of Haslundichilis hedini (Silvestri)","volume":"36","author":"Deng","year":"2011","journal-title":"Acta Zootaxonomica Sin."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1080\/00305316.2006.10417479","article-title":"A New Bristletail Species of the Genus Allopsontus Silvestri (Microcoryphia: Machilidae) from Shaanxi, China","volume":"40","author":"Huang","year":"2006","journal-title":"Orient. Insects"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1134\/S0013873815010091","article-title":"Description of a New Species of the Bristletail Genus Pedetontinus Silv. (Thysanura, Machilidae) from China with a Review of Species of This Genus","volume":"95","author":"Kaplin","year":"2015","journal-title":"Entmol. Rev."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1134\/S0013873816010140","article-title":"A New Species of the Genus Allopsontus Silv. (Microcoryphia, Machilidae) from Northwestern China","volume":"96","author":"Kaplin","year":"2016","journal-title":"Entomol. Rev."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"23","DOI":"10.25221\/fee.376.3","article-title":"A New Species of Bristletails of the Genus Silvestrichilis Wygodzinsky, 1950 (Archaeognatha: Machilidae) from South China","volume":"376","author":"Kaplin","year":"2019","journal-title":"Far East. Entomol."},{"key":"ref_34","first-page":"740","article-title":"A New Species of the Genus Pedetontinus (Microcoryphia, Machilidae) from China","volume":"37","author":"Li","year":"2012","journal-title":"Acta Zootaxonomica Sin."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"268","DOI":"10.1078\/S0031-4056(04)70047-5","article-title":"On Some Silvestri Species of Machilidae (Microcoryphia, Insecta) Which Types Are in the Mus\u00e9um National d\u2019Histoire Naturelle, Paris","volume":"44","author":"Mendes","year":"2000","journal-title":"Pedobiologia"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"437","DOI":"10.11646\/zootaxa.5621.4.3","article-title":"A New Species of Silvestrichilis Wygodzinsky, 1950 (Insecta: Microcoryphia) from Wudang Mountain, Hubei, China, with the Description of Both Sexes","volume":"5621","author":"Shen","year":"2025","journal-title":"Zootaxa"},{"key":"ref_37","first-page":"1","article-title":"Schwedisch-chinesiche wissenschaftliche Expedition nach den nordwestlichen Provinzen Chinas (38. Thysanura, Machilidae)","volume":"27","author":"Silvestri","year":"1934","journal-title":"Ark. Zool."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"61","DOI":"10.11646\/zootaxa.2822.1.4","article-title":"Machilontus (s. str.) medogensis Song & Huang, Sp. n. from Tibet, the Northernmost Record of the Genus Machilontus Silvestri, 1912 and the First Record of the Family Meinertellidae (Insecta: Microcoryphia: Machiloidea) in China","volume":"2822","author":"Song","year":"2011","journal-title":"Zootaxa"},{"key":"ref_39","first-page":"57","article-title":"A new record genus and species of Machilinae from China (Microcoryphia: Machilidae)","volume":"33","author":"Zhang","year":"2010","journal-title":"Jiangxi Plant Prot."},{"key":"ref_40","first-page":"203","article-title":"A New Bristletail Species of the Genus Pedetontinus (Microcoryphia, Machilidae) from China","volume":"34","author":"Zhang","year":"2009","journal-title":"Acta Zootaxonomica Sin."},{"key":"ref_41","first-page":"549","article-title":"A new species of the genus Pedetontinus (Microcoryphia, Machilidae) from China","volume":"30","author":"Zhang","year":"2005","journal-title":"Acta Zootaxonomica Sin."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1131","DOI":"10.1080\/00222933.2011.552801","article-title":"Descriptions of One New Genus and Six New Species of Machilidae (Insecta: Archaeognatha) from China: Morphological and Molecular Data","volume":"45","author":"Zhang","year":"2011","journal-title":"J. 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B"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"99","DOI":"10.3109\/19401736.2012.723001","article-title":"The Complete Mitochondrial Genome of the Bristletail Songmachilis xinxiangensis (Archaeognatha: Machilidae)","volume":"24","author":"He","year":"2013","journal-title":"Mitochondrial DNA"},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Ma, Y., He, K., Yu, P.P., Yu, D.N., Cheng, X.F., and Zhang, J.Y. (2015). The Complete Mitochondrial Genomes of Three Bristletails (Insecta: Archaeognatha): The Paraphyly of Machilidae and Insights into Archaeognathan Phylogeny. PLoS ONE, 10.","DOI":"10.1371\/journal.pone.0117669"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1111\/j.1365-2583.2006.00640.x","article-title":"The Mitochondrial Genome of the Bristletail Petrobius brevistylis (Archaeognatha: Machilidae)","volume":"15","author":"Podsiadlowski","year":"2006","journal-title":"Insect Mol. 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Biol."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"W587","DOI":"10.1093\/nar\/gkad359","article-title":"Tree Visualization By One Table (tvBOT): A Web Application for Visualizing, Modifying and Annotating Phylogenetic Trees","volume":"51","author":"Xie","year":"2023","journal-title":"Nucleic Acids Res."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1134\/S0013873810030061","article-title":"On the Fauna of Bristletails of the Genera Petrobius and Trigoniophthalmus (Thysanura, Machilidae) from the Caucasus","volume":"90","author":"Kaplin","year":"2010","journal-title":"Entmol. Rev."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"951","DOI":"10.1134\/S0013873812090011","article-title":"On the Fauna of the Bristletail Family Machilidae (Thysanura) of the Caucasus and Southern Kazakhstan","volume":"92","author":"Kaplin","year":"2012","journal-title":"Entmol. Rev."}],"container-title":["Insects"],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4450\/16\/9\/916\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T18:37:32Z","timestamp":1760035052000},"score":14.570873,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4450\/16\/9\/916"}},"issued":{"date-parts":[[2025,9,1]]},"references-count":56,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2025,9]]}},"alternative-id":["insects16090916"],"URL":"https:\/\/doi.org\/10.3390\/insects16090916","ISSN":["2075-4450"],"issn-type":[{"value":"2075-4450","type":"electronic"}],"published":{"date-parts":[[2025,9,1]]}},{"indexed":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T15:18:41Z","timestamp":1788189521428,"version":"build-2803163510"},"reference-count":0,"publisher":"Entomological Society of Indochina","issue":"49","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ICE"],"abstract":"<jats:p>A new bristletail species of the genus Pedetontus Silvestri, 1911, Pedetontus (Verhoeffilis) wuhuangensis sp. nov., is described based on male and female specimens collected from Wuhuang Mountain, Guangxi, China. This new species is most similar to P. (V.) shenzhenensis Shen, Yang, Ji &amp; Zhang, 2025 and P. (V.) xanthospilus Shen, Yang, Ji &amp; Zhang, 2025, both of which were reported from southern China. 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The internal phylogenetic relationships and divergence times within this ancient order have long been a subject of scientific debate. In this study, we assembled 14 mitochondrial genomes from species within the genera Pedetontus and Pedetontinus to clarify the phylogenetic relationship and estimate divergence times within Archaeognatha. Phylogenetic analyses revealed that both Machilidae and Machilinae are paraphyletic; Pedetontinus included in this analysis formed a well-supported monophyletic clade, whereas the sampled Pedetontus species were not recovered as a monophyletic clade. Divergence time estimates indicate that Archaeognatha originated during the Late Carboniferous (301.15 Mya, 95% HPD: 298.88\u2013303.67 Mya), with subsequent diversification spanning from the Mesozoic era to the present. The adaptive radiation of epiphytic bryophytes and potential coevolutionary interactions between plants and insects are proposed to have significantly contributed to the diversification of Archaeognatha. Based on multiple lines of evidence, we propose that the current morphological criteria for species delineation within Pedetontus (Pd.) require revision to better reflect its evolutionary history. In the branch-site model analysis, when Pd. silvestrii\u2014collected from temperate regions\u2014was designated as the foreground branch, two positively selected sites were detected at the 66th position of the Cytb and the 34th position of ATP6. When Pd. hainanensis and Pd. bawanglingensis\u2014collected from tropical regions\u2014were used as the foreground branches, six positively selected sites were identified at the 622nd position of Cytb, the 499th position of ATP6, and the 623rd, 873rd, 1106th, and 1141st positions of COI.<\/jats:p>","DOI":"10.3390\/insects16121194","type":"journal-article","created":{"date-parts":[[2025,11,24]],"date-time":"2025-11-24T10:24:17Z","timestamp":1763979857000},"page":"1194","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Comparative Mitogenomics of Pedetontus and Pedetontinus (Insecta: Archaeognatha) Unveils Phylogeny, Divergence History, and Adaptive Evolution"],"prefix":"10.3390","volume":"16","author":[{"given":"Wei","family":"Cen","sequence":"first","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4592-8550","authenticated-orcid":false,"given":"Ting","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia-Wen","family":"Li","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9870-1926","authenticated-orcid":false,"given":"Dan-Na","family":"Yu","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7363-1853","authenticated-orcid":false,"given":"Kenneth B.","family":"Storey","sequence":"additional","affiliation":[{"name":"Department of Biology, Carleton University, Ottawa, ON K1S5B6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7679-2548","authenticated-orcid":false,"given":"Jia-Yong","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China"},{"name":"Key Laboratory of Wildlife Biotechnology, Conservation and Utilization of Zhejiang Province, Zhejiang Normal University, Jinhua 321004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jcz.2025.05.005","article-title":"Systematics of the genus Dilta Strand, 1911 (Machilidae) in the Canary Islands (NW Africa, Spain) with comments on the phylogeny of Microcoryphia (Insecta)","volume":"317","year":"2025","journal-title":"Zool. 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Newly laid eggs of <jats:italic>P. unimaculatus<\/jats:italic> are in the metaphase of the first maturation division, and two successive maturation divisions produce two polar bodies. Nuclear divisions up to the eighth or ninth are accompanied by cytoplasmic divisions, and are holoblastic. Each resulting blastomere contains a single nucleus. Most cleavages are radial, but a few are tangential resulting in the formation of primary yolk nuclei. After the eighth or ninth nuclear division, cytoplasmic divisions are restricted to the egg periphery, and these later cleavages are superficial. Boundaries of blastomeres gradually disappear. Nuclei, which settle in the peripheral cytoplasm, proliferate and differentiate into blastoderm cells, and they also give rise to secondary yolk nuclei. A posterior circular region of blastoderm thickens and concentrates to form a germ rudiment 50\u2013100 \u03bcm in diameter. During the formation of a germ rudiment the serosal cuticle begins to form.<\/jats:p><jats:p>A similar pattern of cleavage was observed in other species of the Machilidae belonging to four genera in two subfamilies (Machilinae, genus <jats:italic>Haslundichilis<\/jats:italic>; Petrobiinae, genera <jats:italic>Pedetontus, Pedetontinus, Petrobiellus<\/jats:italic>). The cleavage pattern of the machilids closely resembles that found in the myriapod groups, the Symphyla, Diplopoda, ana Pauropoda, as well as in the apterygote Collembola, but it differs from the purely superficial cleavage pattern characteristic of the apterygote Thysanura sensu stricto (Zygentoma) and the Pterygota.<\/jats:p><jats:p>It is concluded 1) that the pattern of early total cleavage changing later to superficial cleavage is a plesiomorphic character for the Antennata, and 2) that the purely superficial pattern is an apomorphic character within the Hexapoda.<\/jats:p>","DOI":"10.1002\/jmor.1052060205","type":"journal-article","created":{"date-parts":[[2005,2,24]],"date-time":"2005-02-24T15:31:09Z","timestamp":1109259069000},"page":"181-195","source":"Crossref","is-referenced-by-count":20,"title":["The early embryonic development of the jumping bristletail <i>Pedetontus unimaculatus<\/i> machida (Hexapoda: Microcoryphia, Machilidae)"],"prefix":"10.1002","volume":"206","author":[{"given":"Ryuichiro","family":"Machida","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayuki","family":"Nagashima","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Ando","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,2,6]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"95","volume-title":"Developmental Systems: Insects","author":"Anderson D. 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The genus has two subgenera: the nominative, Pedetontus s. str., with seven species (6 from North America and one from Kamchatka) and Verhoeffilis Paclt, 1972, with 26 species (three species from North America, 12 from the southeastern Palaearctic and 11 from the Indo-Malayan Region). Both subgenera are distinguished by the presence of two pairs of retractable vesicles on abdominal segments II\u2013VI or II\u2013V, respectively. Two new species of the latter subgenus are described from the Primorsky Territory of the Russian Federation: P. furuhjelmi sp. n., from Furugelm Island, and P. nigrus sp. n., from near Ussuriysk. Both these new species are very close to P. ussuriensis Kaplin, 1980, widespread in the Primorsky Territory, and P. silvestrii Mendes, 1993, from North Korea, but differ well in body length, the relative length of the antennae, the structure of the antennal flagella, the compound eyes, the paired ocelli, the maxillary and labial palps, the sternites, styli and coxites of abdominal segment IX, as well as by the chaetotaxy of the legs and urocoxites IX, and the ovipositor.<\/jats:p>","DOI":"10.7868\/s3034545625060034","type":"journal-article","created":{"date-parts":[[2025,11,14]],"date-time":"2025-11-14T12:36:36Z","timestamp":1763123796000},"page":"36","source":"Crossref","is-referenced-by-count":0,"title":["Two new species of bristletails of the genus Pedetontus silvestri, 1911 (Microcoryphia, Machilidae) from the Russian Far East"],"prefix":"10.7868","volume":"104","author":[{"given":"V. 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