{"status":"ok","message-type":"work-list","message-version":"1.0.0","message":{"facets":{},"total-results":1,"items":[{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T22:43:00Z","timestamp":1789512180687,"version":"build-2803163510"},"reference-count":31,"publisher":"Public Library of Science (PLoS)","issue":"8","license":[{"start":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T00:00:00Z","timestamp":1660089600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000781","name":"European Research Council","doi-asserted-by":"publisher","award":["ERCCoG-2017-773067"],"award-info":[{"award-number":["ERCCoG-2017-773067"]}],"id":[{"id":"10.13039\/501100000781","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000270","name":"Natural Environment Research Council","doi-asserted-by":"publisher","award":["T014806\/1"],"award-info":[{"award-number":["T014806\/1"]}],"id":[{"id":"10.13039\/501100000270","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["DEB-1937815"],"award-info":[{"award-number":["DEB-1937815"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010665","name":"H2020 Marie Sk\u0142odowska-Curie Actions","doi-asserted-by":"publisher","award":["829208"],"award-info":[{"award-number":["829208"]}],"id":[{"id":"10.13039\/100010665","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Determining the acoustic ecology of extinct or rare species is challenging due to the inability to record their acoustic signals or hearing thresholds. Katydids and their relatives (Orthoptera: Ensifera) offer a model for inferring acoustic ecology of extinct and rare species, due to allometric parameters of their sound production organs. Here, the bioacoustics of the orthopteran<jats:italic>Prophalangopsis obscura<\/jats:italic>are investigated. This species is one of only eight remaining members of an ancient family with over 90 extinct species that dominated the acoustic landscape of the Jurassic. The species is known from only a single confirmed specimen\u2013the 150-year-old holotype material housed at the London Natural History Museum. Using Laser-Doppler Vibrometry, 3D surface scanning microscopy, and known scaling relationships, it is shown that<jats:italic>P<\/jats:italic>.<jats:italic>obscura<\/jats:italic>produces a pure-tone song at a frequency of ~4.7 kHz. This frequency range is distinct but comparable to the calls of Jurassic relatives, suggesting a limitation of early acoustic signals in insects to sonic frequencies (&lt;20 kHz). The acoustic ecology and importance of this species in understanding ensiferan evolution, is discussed.<\/jats:p>","DOI":"10.1371\/journal.pone.0270498","type":"journal-article","created":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T17:25:35Z","timestamp":1660152335000},"page":"e0270498","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":14,"title":["Reviving the sound of a 150-year-old insect: The bioacoustics of Prophalangopsis obscura (Ensifera: Hagloidea)"],"prefix":"10.1371","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7342-0792","authenticated-orcid":true,"given":"Charlie","family":"Woodrow","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5887-9543","authenticated-orcid":true,"given":"Ed","family":"Baker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thorin","family":"Jonsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5186-2186","authenticated-orcid":true,"given":"Fernando","family":"Montealegre-Z","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2022,8,10]]},"reference":[{"key":"pone.0270498.ref001","volume-title":"Insect Sounds and Communication: Physiology, Behaviour, Ecology and Evolution","author":"S Drosopoulos","year":"2006"},{"key":"pone.0270498.ref002","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1002\/jemt.20051","article-title":"The structure and function of auditory chordotonal organs in insects","volume":"63","author":"JE Yack","year":"2004","journal-title":"Microsc Res Tech"},{"key":"pone.0270498.ref003","doi-asserted-by":"crossref","first-page":"203","DOI":"10.2307\/3503478","article-title":"Phylogeny of the Ensifera (Orthoptera): A Hypothesis Supporting Multiple Origins of Acoustical Signalling, Complex Spermatophores and Maternal Care in Crickets, Katydids, and Weta.","volume":"4","author":"DT Gwynne","year":"1995","journal-title":"J Orthoptera Res."},{"key":"pone.0270498.ref004","doi-asserted-by":"crossref","first-page":"1479","DOI":"10.1242\/jeb.00281","article-title":"Wing resonances in the Australian field cricket Teleogryllus oceanicus","volume":"206","author":"HC Bennet-Clark","year":"2003","journal-title":"J Exp Biol"},{"key":"pone.0270498.ref005","doi-asserted-by":"crossref","first-page":"1219","DOI":"10.1242\/jeb.01526","article-title":"The mechanics of sound production in Panacanthus pallicornis (Orthoptera: Tettigoniidae: Conocephalinae): The stridulatory motor patterns.","volume":"208","author":"F Montealegre-Z","year":"2005","journal-title":"J Exp Biol"},{"key":"pone.0270498.ref006","first-page":"508","volume-title":"Song in Arthropods.","author":"GK Morris","year":"1999"},{"key":"pone.0270498.ref007","doi-asserted-by":"crossref","first-page":"2068","DOI":"10.1111\/jeb.13179","article-title":"Morphological determinants of signal carrier frequency in katydids (Orthoptera): a comparative analysis using biophysical evidence of wing vibration.","volume":"30","author":"F Montealegre-Z","year":"2017","journal-title":"J Evol Biol"},{"key":"pone.0270498.ref008","doi-asserted-by":"crossref","first-page":"0","DOI":"10.1098\/rsbl.2017.0573","article-title":"Structural biomechanics determine spectral purity of bush-cricket calls.","volume":"13","author":"BD Chivers","year":"2017","journal-title":"Biol Lett"},{"key":"pone.0270498.ref009","unstructured":"Cigliano, M.M., Braun, H., Eades, D.C., Otte D. Orthoptera Species File Version 5.0\/5.0. 2021 [cited 20 Dec 2019]. Available: http:\/\/orthoptera.speciesfile.org"},{"key":"pone.0270498.ref010","volume-title":"Fossil Orthoptera Ensifera.","author":"FE Zeuner","year":"1939"},{"key":"pone.0270498.ref011","doi-asserted-by":"crossref","first-page":"525","DOI":"10.1046\/j.1463-6409.2003.00142.x","article-title":"Phylogeny and the evolution of acoustic communication in extant Ensifera (Insecta, Orthoptera).","volume":"32","author":"L Desutter-Grandcolas","year":"2003","journal-title":"Zool Scr"},{"key":"pone.0270498.ref012","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1111\/cla.12116","article-title":"300 million years of diversification: Elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling","volume":"31","author":"H Song","year":"2015","journal-title":"Cladistics"},{"key":"pone.0270498.ref013","doi-asserted-by":"crossref","first-page":"53","DOI":"10.11646\/zootaxa.2026.1.6","article-title":"New data on taxonomy of recent Prophalangopsidae (Orthoptera: Hagloidea).","volume":"62","author":"X Liu","year":"2009","journal-title":"Zootaxa"},{"key":"pone.0270498.ref014","doi-asserted-by":"crossref","first-page":"43","DOI":"10.3897\/asp.70.e31747","article-title":"Grylloptera\u2014A unique origin of the stridulatory file in katydids, crickets, and their kin (Archaeorthoptera).","volume":"70","author":"O. B\u00e9thoux","year":"2012","journal-title":"Arthropod Syst Phylogeny"},{"key":"pone.0270498.ref015","doi-asserted-by":"crossref","first-page":"3868","DOI":"10.1073\/pnas.1118372109","article-title":"Wing stridulation in a Jurassic katydid (Insecta, Orthoptera) produced low-pitched musical calls to attract females.","volume":"109","author":"J-J Gu","year":"2012","journal-title":"Proc Natl Acad Sci U S A"},{"key":"pone.0270498.ref016","first-page":"41","article-title":"Revision and new taxa of fossil Prophalangopsidae (Orthoptera: Ensifera) Published by: Orthopterists \u2018 Society Stable URL: http:\/\/www.jstor.org\/stable\/20789566 REFERENCES Linked references are available on JSTOR for this article: You may need to log.","volume":"19","author":"AJ Gu","year":"2010","journal-title":"J Orthoptera Res."},{"key":"pone.0270498.ref017","first-page":"117","article-title":"New data on taxonomy and evolution of fossil and Recent Prophalangopsidae (Orthoptera: Hagloidea).","volume":"46","author":"V. Gorochov A","year":"2003","journal-title":"Acta Zool cracoviensia."},{"key":"pone.0270498.ref018","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1242\/jeb.022731","article-title":"Mechanical phase shifters for coherent acoustic radiation in the stridulating wings of crickets: The plectrum mechanism","volume":"212","author":"F Montealegre-Z","year":"2009","journal-title":"J Exp Biol"},{"key":"pone.0270498.ref019","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1016\/0020-7322(93)90008-O","article-title":"Structure and evolution of stridulatory mechanisms in New Zealand wetas (Orthoptera: Stenopelmatidae).","volume":"22","author":"LH Field","year":"1993","journal-title":"Int J Insect Morphol Embryol"},{"key":"pone.0270498.ref020","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1139\/z02-003","article-title":"Calling-song function in male haglids (Orthoptera: Haglidae, Cyphoderris).","volume":"80","author":"GK Morris","year":"2002","journal-title":"Can J 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infrequent and acoustically indistinct vocalizations","volume":"162","author":"KM Schroeder","year":"2020","journal-title":"Ibis (Lond 1859)."}],"container-title":["PLOS 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