https://mapress.com/mt <p><strong>Megataxa</strong> is a premium open access journal for important works reporting major advances in taxonomy.</p> Magnolia press en-US Megataxa 2703-3082 <span lang="EN-GB">Authors need to complete and return an </span><span lang="EN-GB"><a href="/j/public/files/MTcopyright.rtf">Assignment of Copyright</a> </span><span lang="EN-GB">form when a paper is accepted for publication. Authors from institutions that do not allow transfer of copyrights to publishers (e.g. government institutions such as USDA, CSIRO) should attach a copyright waiver or similar document.</span> https://mapress.com/mt/article/view/megataxa.17.2.1 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">A new genus of the paederine subtribe Scopaeina Mulsant &amp; Rey, 1878 (Staphylinidae: Paederinae: Lathrobiini), <em>Frischianus</em> Herman, <strong>gen. nov.</strong>, is described from the Oriental Zoogeographical Region with <em>F. rufulus </em>(Kraatz, 1859) as the type species. <em>Frischianus</em> is distinguished from the other genera of the Scopaeina according to an epigenal ridge and dorsally contiguous groove connecting the trichobothrium to the antennal hump, bump-like metakatepisternal processes, and a unipartite gonocoxal plate of females. </span></span></span></p> <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">The following names are transferred from <em>Scopaeus</em> as new combinations: <em>Frischianus coriaceus</em> (Cameron, 1932), <em>F. laticollis</em> (Cameron, 1925), <em>F. miscellus</em> (Cameron, 1932), and <em>F</em>.<em> rufulus</em> (Kraatz, 1859). Lectotypes are designated for <em>Lithocharis rufulus</em> Kraatz, 1859, <em>Medon coriaceus</em> Cameron, 1932, <em>M. miscellus</em> Cameron, 1932, and <em>Scopaeus laticollis</em> Cameron, 1925. </span></span></span></p> <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Thirty new species of <em>Frischianus</em> are described: <em>F. barclayi</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. brenneri</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. burckhardti</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. communis</em> Frisch, <strong>sp. nov.</strong> (Bali, Borneo, Java, Malay Peninsula), <em>F. crassiphallatus</em> Frisch, <strong>sp. nov.</strong> (Thailand), <em>F. curtipennis</em> Frisch, <strong>sp. nov.</strong> (Sumatra), <em>F. echinatospinatus</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. hamatus</em> Frisch, <strong>sp. nov.</strong> (Sumatra), <em>F. huijbregtsi</em> Frisch, <strong>sp. nov.</strong> (Sulawesi), <em>F. karneri</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. keralensis</em> Frisch, <strong>sp. nov.</strong> (India), <em>F. latilobatoides</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. latilobatus</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. lineatocollis</em> Frisch, <strong>sp. nov.</strong> (India), <em>F. lineolatus</em> Frisch, <strong>sp. nov.</strong> (India), <em>F. loebli</em> Frisch, <strong>sp. nov.</strong> (Sumatra), <em>F. mariae</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. parentium</em> Frisch, <strong>sp. nov.</strong> (India), <em>F. pedator</em> Frisch, <strong>sp. nov.</strong> (Sumatra), <em>F. puthzi</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. rubiginicollis</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. schuriani</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. serratispinatus</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. setifer</em> Frisch, <strong>sp. nov.</strong> (Java), <em>F. similis</em> Frisch, <strong>sp. nov.</strong> (Java), <em>F. strigaticollis</em> Frisch, <strong>sp. nov.</strong> (India), <em>F. subalpinus</em> Frisch, <strong>sp. nov.</strong> (Sumatra), <em>F. telnovi</em> Frisch, <strong>sp. nov.</strong> (Borneo), <em>F. tridens</em> Frisch, <strong>sp. nov.</strong> (Malay Peninsula), <em>F. uhligi</em> Frisch, <strong>sp. nov.</strong> (Borneo).</span></span></span></p> <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><em>Frischianus</em> is considered a monophyletic group mainly according to the unipartite female gonocoxal plate. The phylogenetic relationships of <em>Frischianus</em> within the Scopaeina and its infrageneric phylogeny are discussed. According to putative apomorphic characters, <em>Frischianus</em> is subdivided into the <em>F. strigaticollis</em> species group from South India and the speciose, Southeast Asian <em>F. laticollis</em> species group. Within the <em>F. laticollis</em> subgroup, subordinate phylogenetic lineages are distinguished.</span></span></span></p> JOHANNES FRISCH LEE HERMAN Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0 2025-06-17 2025-06-17 17 2 217 290 10.11646/megataxa.17.2.1