{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,7]],"date-time":"2025-01-07T05:23:51Z","timestamp":1736227431503,"version":"3.32.0"},"reference-count":61,"publisher":"Pensoft Publishers","license":[{"start":{"date-parts":[[2025,1,6]],"date-time":"2025-01-06T00:00:00Z","timestamp":1736121600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ZK"],"abstract":"<jats:p>A comprehensive revision is presented of the Oriental and Australasian diving beetle genus <jats:italic>Sandracottus<\/jats:italic> Sharp, 1882 (Coleoptera: Dytiscidae: Dytiscinae: Aciliini) and seven junior subjective synonyms are proposed. <jats:italic>Sandracottus guerini<\/jats:italic> Balfour-Browne, 1939, <jats:bold>syn. nov.<\/jats:bold> is a junior subjective synonym of <jats:italic>S. femoralis<\/jats:italic> Heller, 1934; <jats:italic>S. manipurensis<\/jats:italic> Vazirani, 1969, <jats:bold>syn. nov.<\/jats:bold> of <jats:italic>S. hunteri<\/jats:italic> (Crotch, 1872); <jats:italic>S. mixtus<\/jats:italic> Blanchard, 1843, <jats:bold>syn. nov.<\/jats:bold> of <jats:italic>S. chevrolati<\/jats:italic> (Aub\u00e9, 1838); and <jats:italic>S. angulifer<\/jats:italic> Heller, 1934, <jats:bold>syn. nov.<\/jats:bold>, <jats:italic>S. nauticus<\/jats:italic> Sharp, 1882, <jats:bold>syn. nov.<\/jats:bold>, and <jats:italic>S. palawanensis<\/jats:italic> Sat\u00f4, 1978, <jats:bold>syn. nov.<\/jats:bold> of <jats:italic>S. maculatus<\/jats:italic> (Wehncke, 1876). Finally, <jats:italic>S. vijayakumari<\/jats:italic> Anand et al., 2021, <jats:bold>syn. nov.<\/jats:bold> is a new synonym of <jats:italic>S. dejeanii<\/jats:italic> (Aub\u00e9, 1838). New status is assigned to <jats:italic>S. bakewellii guttatus<\/jats:italic> (Sharp, 1882), <jats:bold>stat. nov.<\/jats:bold> as well as <jats:italic>S. hunteri<\/jats:italic> (Crotch, 1872), <jats:bold>stat. rev.<\/jats:bold> Lectotypes are designated for the following taxa: <jats:italic>Dytiscus flavocinctus<\/jats:italic> Gu\u00e9rin-M\u00e9neville, 1830, <jats:italic>Hydaticus chevrolati<\/jats:italic> Aub\u00e9, 1838, <jats:italic>Hydaticus insignis<\/jats:italic> Wehncke, 1876, <jats:italic>Sandracottus baeri<\/jats:italic> R\u00e9gimbart, 1899, <jats:italic>Sandracottus bizonatus<\/jats:italic> R\u00e9gimbart, 1899, and <jats:italic>Sandracottus ornatus<\/jats:italic> Sharp, 1882. A neotype is designated for <jats:italic>Hydaticus maculatus<\/jats:italic> Wehncke, 1876. In total, three Oriental species, two of which also occur in the East Palaearctic, six Southeast Asian species, one species from New Guinea and the Moluccas, and one from Australia with an endemic subspecies in Central Australia (<jats:italic>S. bakewellii guttatus<\/jats:italic>) are recognised. Each taxon is presented with a diagnosis, habitat preferences, conservation assessments, distribution data, and a comprehensive bibliography. Important characters (habitus, dorsal colouration, median lobes and parameres) are illustrated. All currently valid taxa are redescribed. <jats:italic>Sandracottus jaechi<\/jats:italic> Wewalka &amp; Vazirani, 1975 from Sri Lanka, <jats:italic>S. bizonatus<\/jats:italic> from Borneo, <jats:italic>S. insignis<\/jats:italic> from the Philippines and <jats:italic>S. rotundus<\/jats:italic> Sharp, 1882 from Sulawesi are recommended to be listed in the next IUCN red data book. A key to all species is provided.<\/jats:p>","DOI":"10.3897\/zookeys.1223.138220","type":"journal-article","created":{"date-parts":[[2025,1,6]],"date-time":"2025-01-06T16:04:33Z","timestamp":1736179473000},"page":"87-147","source":"Crossref","is-referenced-by-count":0,"title":["Revision of the Oriental and Australasian diving beetle genus Sandracottus Sharp, 1882 (Coleoptera, Dytiscidae, Dytiscinae)"],"prefix":"10.3897","volume":"1223","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8366-0749","authenticated-orcid":true,"given":"Lars","family":"Hendrich","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michel","family":"Brancucci","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2258","published-online":{"date-parts":[[2025,1,6]]},"reference":[{"key":"138220_B1","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.5263.3.1"},{"key":"138220_B2","doi-asserted-by":"publisher","DOI":"10.11609\/jott.6193.13.3.17999-18003"},{"issue":"1","key":"138220_B3","first-page":"91","article-title":"Diving beetles of the Sakaerat Biosphere Reserve, Nakhon Ratchasima Province, with four new records for Thailand (Coleoptera, Dytiscidae).","volume":"41","author":"Atthakor","year":"2018","journal-title":"Spixiana"},{"key":"138220_B4","author":"Aub\u00e9","year":"1838"},{"key":"138220_B5","author":"Balke","year":"2004","journal-title":"Insecta: Coleoptera, pp. 555\u2013609. 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