{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T16:12:37Z","timestamp":1774887157738,"version":"3.50.1"},"reference-count":29,"publisher":"Pensoft Publishers","license":[{"start":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T00:00:00Z","timestamp":1774828800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006420","name":"Naturvidenskab og Teknologi, Aarhus Universitet","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100006420","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ZK"],"abstract":"<jats:p>\n                    <jats:italic>Lomechusoides umbrosus<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . (Coleoptera: Staphylinidae: Aleocharinae: Lomechusini) is described, a socially integrated myrmecophile associated with\n                    <jats:italic>Formica polyctena<\/jats:italic>\n                    Foerster, 1850. The species is documented from Sweden, Finland, Estonia, Poland, Belarus, and Western Russia (incl. Ural Mountains) based on both newly collected and museum specimens. Field observations show beetles on the surface of host mounds and within nest material, indicating a close association with red wood ant hills. Morphological comparison of the new species and similar\n                    <jats:italic>Lomechusoides<\/jats:italic>\n                    species is provided, including an identification key for\n                    <jats:italic>Lomechusoides<\/jats:italic>\n                    species of Northern Europe, and an update to the global\n                    <jats:italic>L. strumosus<\/jats:italic>\n                    group key. A detailed account of differences between the new species and\n                    <jats:italic>L. strumosus<\/jats:italic>\n                    (hosted by\n                    <jats:italic>F. sanguinea<\/jats:italic>\n                    ), for which it has until now been misidentified as, is made. Mitochondrial COI barcodes are provided to support the morphology and show low but robustly supported genetic divergence (0.7%) between\n                    <jats:italic>L. umbrosus<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . and\n                    <jats:italic>L. strumosus<\/jats:italic>\n                    , which are similar to divergences between other currently recognised species in the genus. Key diagnostic characters include the shape of the pronotum, colour and microsculpture of the head, pronotum and abdomen, dimensions of the antennae, genital structures, as well as the ant host. Our study clarifies long-standing confusion over records of \u201c\n                    <jats:italic>L. strumosus<\/jats:italic>\n                    \u201d from nests of the\n                    <jats:italic>Formica rufa<\/jats:italic>\n                    group and suggests that host specificity is prevalent within\n                    <jats:italic>Lomechusoides<\/jats:italic>\n                    . The holotype is deposited at the Natural History Museum Denmark.\n                  <\/jats:p>","DOI":"10.3897\/zookeys.1275.182781","type":"journal-article","created":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T15:28:31Z","timestamp":1774884511000},"page":"229-257","source":"Crossref","is-referenced-by-count":0,"title":["A new species of Lomechusoides (Coleoptera, Staphylinidae) from Formica polyctena anthills in Northeastern Europe"],"prefix":"10.3897","volume":"1275","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-6436-185X","authenticated-orcid":true,"given":"Hjalte Sebastian","family":"Kj\u00e6rby","sequence":"first","affiliation":[{"name":"Aarhus University, Department of Biology, Aarhus, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-9142-7762","authenticated-orcid":true,"given":"Sean Birk","family":"Bek Craig","sequence":"additional","affiliation":[{"name":"Aarhus University, Department of Agroecology, Aarhus, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9867-4366","authenticated-orcid":true,"given":"Philip Francis","family":"Thomsen","sequence":"additional","affiliation":[{"name":"Aarhus University, Department of Biology, Aarhus, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2089-7233","authenticated-orcid":true,"given":"Aslak Kappel","family":"Hansen","sequence":"additional","affiliation":[{"name":"Natural History Museum Denmark, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2258","published-online":{"date-parts":[[2026,3,30]]},"reference":[{"key":"182781_B1","unstructured":"De Lattin G (1967) Grundriss der Zoogeographie. Fischer, Jena, 602 pp."},{"key":"182781_B2","doi-asserted-by":"publisher","DOI":"10.3389\/fenvs.2017.00011"},{"key":"182781_B3","doi-asserted-by":"publisher","DOI":"10.7717\/peerj.7745"},{"key":"182781_B4","unstructured":"Franc V, Majzlan O, Kri\u0161t\u00edn A, Wiezik M (2015) On the distribution and ecology of the ant cricket (Myrmecophilus acervorum) (Orthoptera: Myrmecophilidae) in Slovakia. Matthias Belivs University Proceedings 5: 40\u201350."},{"key":"182781_B5","doi-asserted-by":"publisher","DOI":"10.18476\/2024.210366"},{"key":"182781_B6","doi-asserted-by":"publisher","DOI":"10.37520\/aemnp.2022.017"},{"key":"182781_B7","doi-asserted-by":"publisher","DOI":"10.3897\/contrib.entomol.73.e102511"},{"key":"182781_B8","doi-asserted-by":"publisher","DOI":"10.1111\/icad.12072"},{"key":"182781_B9","unstructured":"Harrison T, Lapeva-Gjonova A (2014) Two Lomechusini (Coleoptera: Staphylinidae: Aleocharinae) species new to Bulgaria. ZooNotes 66: 1\u20132."},{"key":"182781_B10","unstructured":"Hlav\u00e1\u010d P, Newton AF, Maruyama M (2011) World catalogue of the species of the tribe Lomechusini (Staphylinidae: Aleocharinae). Zootaxa 3075(1): 1\u2013151. https:\/\/mapress.com\/zt\/article\/view\/12102"},{"key":"182781_B11","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0200309"},{"key":"182781_B12","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.3683.1.4"},{"key":"182781_B13","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.5343.6.4"},{"key":"182781_B14","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkf436"},{"key":"182781_B15","doi-asserted-by":"publisher","DOI":"10.1111\/2041-210X.12410"},{"key":"182781_B16","doi-asserted-by":"publisher","DOI":"10.1111\/1755-0998.13756"},{"key":"182781_B17","doi-asserted-by":"publisher","DOI":"10.48580\/dfqf-3gk"},{"key":"182781_B18","doi-asserted-by":"publisher","DOI":"10.1007\/s00040-014-0357-3"},{"key":"182781_B19","doi-asserted-by":"publisher","DOI":"10.1093\/biolinnean\/blw052"},{"key":"182781_B20","doi-asserted-by":"publisher","DOI":"10.33338\/ef.84133"},{"key":"182781_B21","doi-asserted-by":"publisher","DOI":"10.25849\/myrmecol.news_032:093"},{"key":"182781_B22","doi-asserted-by":"publisher","DOI":"10.1093\/sysbio\/sys029"},{"key":"182781_B23","doi-asserted-by":"publisher","DOI":"10.1111\/cla.12566"},{"key":"182781_B24","doi-asserted-by":"publisher","DOI":"10.1186\/s12915-021-01141-x"},{"key":"182781_B25","doi-asserted-by":"publisher","DOI":"10.2144\/00291bm09"},{"key":"182781_B26","doi-asserted-by":"crossref","unstructured":"Wasmann E (1894) Die europ\u00e4ischen Dinarda, mit Beschreibung einer neuen deutschen Art. \u2013 Deutsche Entomologische Zeitschrift (Berliner Entomologische Zeitschrift und Deutsche Entomologische Zeitschrift in Vereinigung) 1894: 275\u2013280.","DOI":"10.1002\/mmnd.48018940527"},{"key":"182781_B27","doi-asserted-by":"publisher","DOI":"10.5962\/bhl.part.10633"},{"key":"182781_B28","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.3955.3.8"},{"key":"182781_B29","doi-asserted-by":"publisher","DOI":"10.21248\/contrib.entomol.36.1.79-98"}],"container-title":["ZooKeys"],"original-title":[],"link":[{"URL":"https:\/\/zookeys.pensoft.net\/article\/182781\/download\/pdf\/","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/zookeys.pensoft.net\/article\/182781\/download\/xml\/","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/zookeys.pensoft.net\/article_preview.php?id=182781&skip_redirect=1","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T15:28:35Z","timestamp":1774884515000},"score":1,"resource":{"primary":{"URL":"https:\/\/zookeys.pensoft.net\/article\/182781\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,3,30]]},"references-count":29,"URL":"https:\/\/doi.org\/10.3897\/zookeys.1275.182781","relation":{},"ISSN":["1313-2970","1313-2989"],"issn-type":[{"value":"1313-2970","type":"electronic"},{"value":"1313-2989","type":"print"}],"subject":[],"published":{"date-parts":[[2026,3,30]]}}}