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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Revision of the genus <italic>Dercetina</italic> from Taiwan and their similar species, with description of a new species from Myanmar (Insecta, Chrysomelidae, Galerucinae)</title><author><name sortKey="Lee, Chi Feng" sort="Lee, Chi Feng" uniqKey="Lee C" first="Chi-Feng" last="Lee">Chi-Feng Lee</name><affiliation><nlm:aff id="A1">Applied Zoology Division, Taiwan Agricultural Research Institute, 189 Chung-Cheng Road, Wufeng, Taichung 413, Taiwan</nlm:aff></affiliation></author><author><name sortKey="Bezd K, Jan" sort="Bezd K, Jan" uniqKey="Bezd K J" first="Jan" last="Bezd K">Jan Bezd K</name><affiliation><nlm:aff id="A2">Mendel University, Department of Zoology, Zemědělská 1, 613 00 Brno, Czech Republic</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24003313</idno><idno type="pmc">3760291</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3760291</idno><idno type="RBID">PMC:3760291</idno><idno type="doi">10.3897/zookeys.323.5195</idno><date when="2013">2013</date><idno type="wicri:Area/Pmc/Corpus">000269</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000269</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Revision of the genus <italic>Dercetina</italic> from Taiwan and their similar species, with description of a new species from Myanmar (Insecta, Chrysomelidae, Galerucinae)</title><author><name sortKey="Lee, Chi Feng" sort="Lee, Chi Feng" uniqKey="Lee C" first="Chi-Feng" last="Lee">Chi-Feng Lee</name><affiliation><nlm:aff id="A1">Applied Zoology Division, Taiwan Agricultural Research Institute, 189 Chung-Cheng Road, Wufeng, Taichung 413, Taiwan</nlm:aff></affiliation></author><author><name sortKey="Bezd K, Jan" sort="Bezd K, Jan" uniqKey="Bezd K J" first="Jan" last="Bezd K">Jan Bezd K</name><affiliation><nlm:aff id="A2">Mendel University, Department of Zoology, Zemědělská 1, 613 00 Brno, Czech Republic</nlm:aff></affiliation></author></analytic><series><title level="j">ZooKeys</title><idno type="ISSN">1313-2989</idno><idno type="eISSN">1313-2970</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><label>Abstract</label><p>Species of the genus <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> Gressitt & Kimoto, 1963 in Taiwan are revised. <italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic> Gressitt and Kimoto, 1966, <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto, 1969, and <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, 1969 are redescribed. <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> (Weise, 1889), <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> (Chûjô, 1938), and <italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic> (Allard, 1889) are removed from synonymy with <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> (Hope, 1831). <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> and <italic><named-content content-type="taxon-name">Dercetina nakanei</named-content></italic> Kimoto, 1969 are transferred to the genus <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic> Motschulsky, 1858. Lectotypes are designated for <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> Chûjô, 1938, and <italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic> Jacoby, 1890. The synonymies of <italic><named-content content-type="taxon-name">Antipha flavofasciata</named-content></italic> Baly, 1879 and <italic><named-content content-type="taxon-name">Dercetes femoralis</named-content></italic> Weise, 1922 with <italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic> (Hope, 1831), <italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic> Jacoby, 1890 with <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> (Weise, 1889) are supported. A new species, <italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic><bold>sp. n.</bold> which was confused with <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic>, is described from Myanmar.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Allard, E" uniqKey="Allard E">E Allard</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Baly, Js" uniqKey="Baly J">JS Baly</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Beenen, R" uniqKey="Beenen R">R Beenen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chujo, M" uniqKey="Chujo M">M Chûjô</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chujo, M" uniqKey="Chujo M">M Chûjô</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chujo, M" uniqKey="Chujo M">M Chûjô</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gressitt, Jl" uniqKey="Gressitt J">JL Gressitt</name></author><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gressitt, Jl" uniqKey="Gressitt J">JL Gressitt</name></author><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Hope, Fw" uniqKey="Hope F">FW Hope</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jacoby, M" uniqKey="Jacoby M">M Jacoby</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author><author><name sortKey="Gressitt, Jl" uniqKey="Gressitt J">JL Gressitt</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author><author><name sortKey="Takizawa, H" uniqKey="Takizawa H">H Takizawa</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kimoto, S" uniqKey="Kimoto S">S Kimoto</name></author><author><name sortKey="Takizawa, H" uniqKey="Takizawa H">H Takizawa</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Maulik, S" uniqKey="Maulik S">S Maulik</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ogloblin, Da" uniqKey="Ogloblin D">DA Ogloblin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Takizawa, H" uniqKey="Takizawa H">H Takizawa</name></author><author><name sortKey="Nakamura, S" uniqKey="Nakamura S">S Nakamura</name></author><author><name sortKey="Kojima, K" uniqKey="Kojima K">K Kojima</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Weise, J" uniqKey="Weise J">J Weise</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Weise, J" uniqKey="Weise J">J Weise</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Weise, J" uniqKey="Weise J">J Weise</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wilcox, Ja" uniqKey="Wilcox J">JA Wilcox</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wilcox, Ja" uniqKey="Wilcox J">JA Wilcox</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Zookeys</journal-id><journal-id journal-id-type="iso-abbrev">Zookeys</journal-id><journal-id journal-id-type="publisher-id">ZooKeys</journal-id><journal-title-group><journal-title>ZooKeys</journal-title></journal-title-group><issn pub-type="ppub">1313-2989</issn><issn pub-type="epub">1313-2970</issn><publisher><publisher-name>Pensoft Publishers</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">24003313</article-id><article-id pub-id-type="pmc">3760291</article-id><article-id pub-id-type="doi">10.3897/zookeys.323.5195</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Revision of the genus <italic>Dercetina</italic> from Taiwan and their similar species, with description of a new species from Myanmar (Insecta, Chrysomelidae, Galerucinae)</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Lee</surname><given-names>Chi-Feng</given-names></name><xref ref-type="aff" rid="A1">1</xref><uri content-type="lsid" xlink:type="simple" xlink:href="http://zoobank.org/9F5D86AB-3DCE-4DE8-A079-75B2073BAB01">http://zoobank.org/9F5D86AB-3DCE-4DE8-A079-75B2073BAB01</uri></contrib><contrib contrib-type="author"><name><surname>Bezděk</surname><given-names>Jan</given-names></name><xref ref-type="aff" rid="A2">2</xref><uri content-type="lsid" xlink:type="simple" xlink:href="http://zoobank.org/668F3A35-3E6E-40F3-9F06-356EEB50E45F">http://zoobank.org/668F3A35-3E6E-40F3-9F06-356EEB50E45F</uri></contrib></contrib-group><aff id="A1"><label>1</label>Applied Zoology Division, Taiwan Agricultural Research Institute, 189 Chung-Cheng Road, Wufeng, Taichung 413, Taiwan</aff><aff id="A2"><label>2</label>Mendel University, Department of Zoology, Zemědělská 1, 613 00 Brno, Czech Republic</aff><author-notes><corresp>Corresponding author: Chi-Feng Lee (<email xlink:type="simple">chifeng@tari.gov.tw</email>)</corresp><fn fn-type="edited-by"><p>Academic editor: A. Konstantinov</p></fn></author-notes><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>13</day><month>8</month><year>2013</year></pub-date><issue>323</issue><fpage>1</fpage><lpage>33</lpage><history><date date-type="received"><day>23</day><month>3</month><year>2013</year></date><date date-type="accepted"><day>6</day><month>8</month><year>2013</year></date></history><permissions><copyright-statement>Chi-Feng Lee, Jan Bezděk</copyright-statement><license license-type="creative-commons-attribution" xlink:href="http://creativecommons.org/licenses/by/3.0"><license-p>This is an open access article distributed under the terms of the Creative Commons Attribution License 3.0 (CC-BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p></license></permissions><self-uri content-type="lsid" xlink:type="simple" xlink:href="http://zoobank.org/EE619CDD-5399-4349-B79D-47EC4EA4C3CA">http://zoobank.org/EE619CDD-5399-4349-B79D-47EC4EA4C3CA</self-uri><abstract><label>Abstract</label><p>Species of the genus <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> Gressitt & Kimoto, 1963 in Taiwan are revised. <italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic> Gressitt and Kimoto, 1966, <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto, 1969, and <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, 1969 are redescribed. <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> (Weise, 1889), <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> (Chûjô, 1938), and <italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic> (Allard, 1889) are removed from synonymy with <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> (Hope, 1831). <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> and <italic><named-content content-type="taxon-name">Dercetina nakanei</named-content></italic> Kimoto, 1969 are transferred to the genus <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic> Motschulsky, 1858. Lectotypes are designated for <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> Chûjô, 1938, and <italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic> Jacoby, 1890. The synonymies of <italic><named-content content-type="taxon-name">Antipha flavofasciata</named-content></italic> Baly, 1879 and <italic><named-content content-type="taxon-name">Dercetes femoralis</named-content></italic> Weise, 1922 with <italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic> (Hope, 1831), <italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic> Jacoby, 1890 with <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> (Weise, 1889) are supported. A new species, <italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic><bold>sp. n.</bold> which was confused with <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic>, is described from Myanmar.</p></abstract><kwd-group><label>Keywords</label><kwd><italic>Dercetina</italic></kwd><kwd><italic>Arthrotus</italic></kwd><kwd>Taiwan</kwd><kwd>taxonomic revision</kwd><pmc-comment>PageBreak</pmc-comment>
</kwd-group></article-meta></front><body><sec><title>Introduction</title><p><italic><named-content content-type="taxon-name">Dercetina</named-content></italic> Gressitt & Kimoto, 1963 is very similar to the genus <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic> Motschulsky, 1858. These genera differ from each other only by the structure of male antenna: the antennomere III is about twice longer than antennomere II in <italic><named-content content-type="taxon-name">Dercetina</named-content></italic>, while antennomeres II and III are subequal in length in <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic>. Thus females are impossible to assign to either genus if they are not associated with males. Moreover, most members of <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> have similar shapes of male aedeagi and some species have great color variation. These factors have caused taxonomic confusion in <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> and <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic>. To solve this problem, examination of extensive collections and evaluation of characters other than the external morphology of the male aedeagi are necessary. The examination of endophallic sclerites, which we studied here for the first time in <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> and <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic>, seems to be very helpful for resolving many taxonomical problems in both genera.</p><p><italic><named-content content-type="taxon-name">Dercetina</named-content></italic> is an Asian genus and comprises 88 species (<xref ref-type="bibr" rid="B27">Wilcox 1971</xref>, <xref ref-type="bibr" rid="B28">1975</xref>, Bezděk, unpublished data), of which 23 species are distributed in the Palearctic region (<xref ref-type="bibr" rid="B3">Beenen 2010</xref>). Five species were recorded from Taiwan (<xref ref-type="bibr" rid="B20">Kimoto and Takizawa 1997</xref>). <italic><named-content content-type="taxon-name">Dercetes flaviventris</named-content></italic> (Jacoby, 1890) was the first species to be recorded from Taiwan by <xref ref-type="bibr" rid="B25">Weise (1922)</xref>. Later <xref ref-type="bibr" rid="B4">Chûjô (1938)</xref> described the new species <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic>. <xref ref-type="bibr" rid="B13">Kimoto (1969)</xref> indicated that the record of <italic><named-content content-type="taxon-name">Dercetes flaviventris</named-content></italic> was a misidentification and described a new species as <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic>. In addition to <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic>, two more new species were described (<italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, 1969 and <italic><named-content content-type="taxon-name">Dercetina nakanei</named-content></italic> Kimoto, 1969) and one new country record for Taiwan (<italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic> Kimoto & Gressitt, 1966).</p><p><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> (Chûjô, 1938) has a complicated nomenclatural history. It was synonymized with <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> (Weise, 1889) by <xref ref-type="bibr" rid="B7">Gressitt and Kimoto (1963)</xref>. <italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic> Jacoby, 1890 was also regarded as a junior synonym in the same paper. Later, <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> was synonymized with <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> (Hope, 1831) by <xref ref-type="bibr" rid="B16">Kimoto (1989b)</xref>. <italic><named-content content-type="taxon-name">Antipha unifasciata</named-content></italic> Allard, 1889 and <italic><named-content content-type="taxon-name">Dercetes femoralis</named-content></italic> Weise, 1922 were also regarded as junior synonyms of <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> in the same paper. <italic><named-content content-type="taxon-name">Antipha flavofasciata</named-content></italic> Baly, 1879 was synonymized with <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> by <xref ref-type="bibr" rid="B21">Maulik (1936)</xref>. To clarify the status of all available names, the types of them were re-examined and diagnostic characters examined.</p></sec><sec sec-type="materials|methods"><title>Material and methods</title><p>To study specimens and prepare drawings of the adult reproductive systems, the abdomens of adults were separated and boiled in a 10% KOH solution, cleared in distilled water, and then mounted on slides with glycerin. Slides were examined using a Leica M165 stereomicroscope, and figures were drawn using a Nikon ECLIPSE 50i microscope.</p><p>Studied specimens have been deposited at the following institutes and museums and</p><p><abbrev>BMNH<def><p> The Natural History Museum, London, UK [Maxwell V. L. Barclay]</p></def></abbrev></p><p><abbrev>BPBM<def><p> Bernice P. Bishop Museum, Honolulu, USA [Shepherd Myers]</p></def></abbrev></p><pmc-comment>PageBreak</pmc-comment>
<p><abbrev>ISNB<def><p> Institut royal des Sciences Naturelles de Belgique, Bruxelles, Belgium [Pol Limbourg]</p></def></abbrev></p><p><abbrev>KMNH<def><p> Kitakyushu Museum of Natural History and Human History, Kitakyushu, Japan [Kyoichiro Ueda]</p></def></abbrev></p><p><abbrev>KUEC<def><p> Faculty of Agriculture, Kyushu University, Fukuoka, Japan [Osamu Tadauchi]</p></def></abbrev></p><p><abbrev>MCZC<def><p> Museum of Comparative Zoology, Harvard University, Massachusetts, USA [Philip D. Perkins]</p></def></abbrev></p><p><abbrev>MNHUB<def><p> Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung an der Humboldt-Universität zu Berlin, Berlin, Germany [Joachim Willer, Johannes Frisch]</p></def></abbrev></p><p><abbrev>NHRS<def><p> Naturhistoriska Riksmusset, Stockholm, Sweden [Johannes Bergsten]</p></def></abbrev></p><p><abbrev>SDEI<def><p> Senckenberg Deutsches Entomologisches Institut, Müncheberg, Germany [Stephan Blank]</p></def></abbrev></p><p><abbrev>TARI<def><p> Taiwan Agricultural Research Institute, Taichung, Taiwan.</p></def></abbrev></p><p><abbrev>USNM<def><p> National Museum of Natural History, Smithsonian Institution, Washington DC, USA [Alexander Konstantinov]</p></def></abbrev></p></sec><sec sec-type="Results"><title>Results</title><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Dercetina_azumai"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">azumai</named-content></named-content></title><p><named-content content-type="taxon-authority">Kimoto & Gressitt, 1966</named-content></p><p>http://species-id.net/wiki/Dercetina_azumai</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina azumai</named-content><named-content content-type="comment"> Kimoto & Gressitt, 1966: 534 (Japan: Iriomote island); <xref ref-type="bibr" rid="B13">Kimoto 1969</xref>: 66 (Taiwan); <xref ref-type="bibr" rid="B15">Kimoto 1989a</xref>; 260 (Taiwan).</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic>: Holotype ♀ (KUEC): “RYUKYU IS. Iriomote I. Ushiku-mori 11.III.1964 / S. Kimoto Collector / Japan-U. S. Co-op. Sci. Programme (yellow label) / HOLOTYPE DERCETINA AZUMAI J. L. GRESSITT (red label)”.</p></sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>TAIWAN:</bold> 1♂, Kaoshiung, Chuyunshan trail, 1.III.2009, leg. U. Ong (TARI); 1♀, Kaoshiung, Taoyuan, 3.VII.2009, leg. S.-F. Yu (TARI); 5♂♂, 12♀♀, Kaoshiung, Tengchih (= Shihshan trail), 2-5.VI.2008, leg. C.-F. Lee (TARI); 3♂♂, 16♀♀, same locality, 2.X.2008, leg. M.-H. Tsou (TARI); 6♀♀, same locality, 1–3.X.2008, leg. M.-H. Tsou (TARI); 1♂, 1♀, same locality, 5.II.2009, leg. M.-H. Tsou (TARI); 1♂, 1♀, same locality, 26.V.2009, leg. C.-F. Lee (TARI); 1♂, same locality, 4.VII.2011, leg. M.-H. Tsou (TARI); 1♀, Pingtung, Jinshuiying, 12.IV.2012, leg. C.-F. Lee (TARI); 2♀♀, Pingtung, Tahanshan, 22.I.2009, leg. S.-F. Yu (TARI); 1♀, same locality, 24.I.2009, leg. M.-H. Tsou (TARI); 1♀, same locality, 8.V.2009, leg. U. Ong (TARI); 1♂, same locality, 21.VII.2009, leg. J.-C. Chen (TARI); 6♂♂, 14.VIII.2011, leg. Y.-T. Wang (TARI); 1♀, same locality, 6.VI.2012, leg. C.-F. Lee (TARI); 1♂, same locality, 19.VII.2012, leg. C.-F. Lee (TARI); 2♂♂, Taitung, Motien, 23.VI.2010, leg. S.-F. Yu (TARI); 1♂, same locality, 19.VI.2011, leg. C.-F. Lee (TARI).</p><pmc-comment>PageBreak</pmc-comment>
</sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic> is similar to <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> with metallic green elytra but differs by the yellowish brown head, prothorax, meso- and metathoracic ventrites (in contrast with metallic green head, prothorax, meso- and metathoracic ventrites in <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic>).</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F1">Figs 1–2</xref>) yellowish brown except eye black; antennomeres III-XI dark brown; elytron metallic green or blue. Head shagreened and impunctate. Pronotum transverse, 1.4–1.5 times wider than long, disc with a pair of deep fovea, and scattered prominent and fine punctures; lateral margin sinuate, narrowed posterior, anterior margin slightly concave, posterior margin slightly rounded. Elytra more or less widened posterior, apex convergent rounded, 1.6–1.7 times longer than wide, disc with densely prominent punctures; epipleurae with scattered prominent prunctures.</p><fig id="F1" orientation="portrait" position="float"><label>Figures 1–4.</label><caption><p>Habitus of <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> species. <bold>1</bold><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic>, dorsal view <bold>2</bold><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic>, ventral view <bold>3</bold><italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n., dorsal view <bold>4</bold><italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n., ventral view.</p></caption><graphic xlink:href="ZooKeys-323-001-g001"></graphic></fig><p><bold>Male.</bold> Length 4.9–5.6 mm, width 2.1–2.4 mm. Antenna filiform (<xref ref-type="fig" rid="F2">Fig. 5</xref>), ratio of length of antennomeres III to XI about 1.0: 1.6: 1.6: 1.6: 1.6: 1.3: 1.2: 1.1: 1.4; ratio of length to width of antennomeres III to XI about 3.9: 6.4: 6.1: 6.0: 6.2: 5.1: 4.8: 4.1: 5.1. Penis (<xref ref-type="fig" rid="F2">Fig. 7</xref>) extremely slender, about 8.9 times longer than wide, parallel-sided, basally widened, apex pointed; tectum membranous, with scattered stout <pmc-comment>PageBreak</pmc-comment>membranous setae; weakly curved in lateral view (<xref ref-type="fig" rid="F2">Fig. 8</xref>); endophallic sclerite elongate, about 0.7 times as long as penis, apex curved in lateral view, bifurcate, with a cluster of dense setae near apex; a pair of hooked dorsal slclerite connected at apical 1/5, an <pmc-comment>PageBreak</pmc-comment>elongate sclerite between dorsal sclerite and ventral sclerite, connected at apical 1/3; ventral sclerite with base deeply bifurcate.</p><fig id="F2" orientation="portrait" position="float"><label>Figures 5–11.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic>. <bold>5</bold> Antenna, male <bold>6</bold> Antenna, female <bold>7</bold> Aedeagus, dorsal view <bold>8</bold> Aedeagus, lateral view <bold>9</bold> Sternite VIII <bold>10</bold> Gonocoxae <bold>11</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g002"></graphic></fig><p><bold>Female.</bold> Length 5.5–6.8 mm, width 2.6–3.3 mm. Ratio of length of antennomeres III to XI about 1.0: 1.7: 1.6: 1.6: 1.5: 1.4: 1.3: 1.3: 1.5; ratio of length to width of antennomeres III to XI about 3.8: 6.3: 6.1: 5.9: 5.6: 5.1: 4.9: 4.9: 5.7 (<xref ref-type="fig" rid="F2">Fig. 6</xref>). Sternite VIII (<xref ref-type="fig" rid="F2">Fig. 9</xref>) weakly sclerotized laterally and apically, with scattered setae along lateral and apical margin, spiculum extremely slender. Spermathecal receptaculum (<xref ref-type="fig" rid="F2">Fig. 11</xref>) weakly swollen; pump narrow and moderately curved, apex broadly rounded; spermathecal duct long, strongly curved, deeply projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F2">Fig. 10</xref>) widely connected at middle, about 4.4 times longer than wide, curved inwards at apical 1/3, with one long seta at apical 1/3, eleven setae at apex.</p></sec><sec sec-type="treatment-Host plants"><title>Host plants.</title><p><named-content content-type="taxon-name">Myrsinaceae</named-content>: <italic><named-content content-type="taxon-name">Embelia lenticellata</named-content></italic> Hayata; <named-content content-type="taxon-name">Saxifragaceae</named-content>: <italic><named-content content-type="taxon-name">Hydrangea angustipetala</named-content></italic> Hayata.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>Japan (Iriomote island) and Taiwan. This species occurs in mountains (1000–2000 m) of southern Taiwan (<xref ref-type="fig" rid="F3">Fig. 12</xref>) but locally abundant.</p><fig id="F3" orientation="portrait" position="float"><label>Figures 12–15.</label><caption><p>Distribution map of <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> species, solid line: 1000 m, broken line: 2000 m. <bold>12</bold><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic><bold>13</bold><italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic><bold>14</bold><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic><bold>15</bold><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>.</p></caption><graphic xlink:href="ZooKeys-323-001-g003"></graphic></fig></sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">barclayi</named-content></named-content><named-content content-type="taxon-status">sp. n.</named-content></title><p>http://zoobank.org/AD8891A6-94FF-483F-B6D8-70378076A04E</p><p>http://species-id.net/wiki/Dercetina_barclayi</p><sec sec-type="treatment-Type series"><title>Type series.</title><p>Holotype ♂ (BMNH): “Doherty / Birmah RubyMes / Fry Coll. 1905. 100.”. Paratypes: 1♂, same as holotype (BMNH); 1♂, 2♀♀: “Ruby Mines. Burma. 5.500 to 7.500 ft. 1904-150.” (BMNH); 4♂♂, 1♀: “Ruby Mines U. M. / Gift of F. G. Bowditch” (USNM).</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p>This new species is similar to <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> but differs by yellowish brown antennae, no color variation, wider penis, and with longer endophallic sclerites.</p></sec><sec sec-type="treatment-Description"><title>Description.</title><p>Color (<xref ref-type="fig" rid="F1">Figs 3–4</xref>) bluish black, prothorax, coxae, and tibiae yellowish brown; elytron with one trasverse white stripe at basal 1/3; head brown, vertex and labium black. Head smooth and impunctate. Pronotum transverse, 2.2 times wider than long, evenly convex on disc and lacking fovea or punctured depression, disc with scattered fine punctures; lateral margin rounded, anterior margin slightly concave, posterior margin straight. Elytra more or less widened posteriorly, apex convergently rounded, 1.4-1.5 times longer than wide, disc with punctures in part arranged in longitudinal rows, epipleurae smooth and impunctate.</p><p><bold>Male</bold>. Length 3.9–4.3 mm, width 2.1–2.4 mm. Antennomeres III-X weakly serrate (<xref ref-type="fig" rid="F4">Fig. 16</xref>), ratio of length of antennomeres III to XI about 1.0: 1.2: 1.2: 1.2: 1.2: 1.2: 1.1: 1.1: 1.3; ratio of length to width of antennomeres III to XI about 2.6: 3.0: 3.3: 3.4: 3.4: 3.9: 3.8: 3.7: 4.8. Penis (<xref ref-type="fig" rid="F4">Fig. 18</xref>) extremely slender, about 7.3 times longer than wide, parallel-sided, basally and apically widened, apex narrowly rounded; tectum membranous, with scatted stout setae; weakly curved in lateral view (<xref ref-type="fig" rid="F4">Fig. 19</xref>); endophallic sclerites elongate, about 0.5 times as long as penis, dorsal scler<pmc-comment>PageBreak</pmc-comment><pmc-comment>PageBreak</pmc-comment>ite with base bifurcate, apex truncate; ventral sclerite much longer than dorsal sclerite, apex bifurcate, base rounded, with a cluster of short setae at middle; in lateral view moderately curved.</p><fig id="F4" orientation="portrait" position="float"><label>Figures 16–22.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n. <bold>16</bold> Antenna, male <bold>17</bold> Antenna, female <bold>18</bold> Aedeagus, dorsal view <bold>19</bold> Aedeagus, lateral view <bold>20</bold> Sternite VIII <bold>21</bold> Gonocoxae <bold>22</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g004"></graphic></fig><pmc-comment>PageBreak</pmc-comment>
<p><bold>Female</bold>. Length 4.7–5.3 mm, width 2.8–3.1 mm. Antenna 11-segmented, antennomeres III-X weakly serrate (<xref ref-type="fig" rid="F4">Fig. 17</xref>), comparatively narrower than male, ratio of length of antennomeres III to XI about 1.0: 1.2: 1.2: 1.2: 1.2: 1.2: 1.0: 1.0: 1.2; ratio of length to width of antennomeres III to XI about 3.2: 3.6: 3.4: 3.6: 3.5: 3.3: 3.0: 3.2: 3.8. Sternite VIII (<xref ref-type="fig" rid="F4">Fig. 20</xref>) weakly sclerotized subapically, apex rounded, with dense short setae along lateral and apical margin, spiculum long. Spermathecal receptaculum (<xref ref-type="fig" rid="F4">Fig. 22</xref>) strongly swollen; pump narrow and strongly curved, apex widely rounded; spermathecal duct short, deeply projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F4">Fig. 21</xref>) narrowly connected in middle, about 5.5 times longer than wide, slightly curved inwards near apex, apex rounded, with one short setae at apical 1/3, ten to eleven setae at apex.</p></sec><sec sec-type="treatment-Etymology"><title>Etymology.</title><p>This new species is named for Maxwell V. L. Barclay who is one of Britain’s leading entomologists and curator of <named-content content-type="taxon-name">Coleoptera</named-content> at the Natural History Museum in London.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>Only known from the type locality.</p></sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Dercetina_chinensis"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">chinensis</named-content></named-content></title><p><named-content content-type="taxon-authority">(Weise, 1889)</named-content><named-content content-type="taxon-status">stat. r.</named-content></p><p>http://species-id.net/wiki/Dercetina_chinensis</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Arthrotus chinensis</named-content><named-content content-type="comment"> Weise, 1889: 626; <xref ref-type="bibr" rid="B22">Ogloblin 1936</xref>: 330 (Jiangsu); <xref ref-type="bibr" rid="B16">Kimoto 1989b</xref>: 229 (as synonym of <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic> Hope, 1831)</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina chinensis</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B8">Gressitt and Kimoto 1965</xref>: 802.</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Antipha varipennis</named-content><named-content content-type="comment"> Jacoby, 1890: 214. synonymy confirmed</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina varipennis</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B7">Gressitt and Kimoto 1963</xref>: 710 (as synonym of senior <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>); <xref ref-type="bibr" rid="B11">Kimoto 1965</xref>: 489; <xref ref-type="bibr" rid="B8">Gressitt and Kimoto 1965</xref>: 802 (corrected as junior synonym of <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>).</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p><italic><named-content content-type="taxon-name">Arthrotus chinensis</named-content></italic>: Holotype ♀ (MNHUB): “Yunnan Fischer / Yünnan Fischer / Arthrotus chinensis 89., m. / Typus (red label) / <italic><named-content content-type="taxon-name">Arthrotus chinensis</named-content></italic> Wse L. N. Medvedev det. 1987”. Although locality labels of the holotype didn’t fit the original description, where Peking is clearly indicated, we prefer to treat it as true holotype because the specimen perfectly fit the original description and bears also original Weise´s handwritten identification label.</p><p><italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic>: Lecotype ♂ (BMNH), here designated, labeled: “Chang Yang A. E. Pratt Coll. July 1888. / Jacoby Coll. 1909-28a / <italic>varipennis</italic> Jac”. Paralectotypes: 1♂ (BMNH), same with lecotype but without determination label; 2♂♂ with black elytra and same labels are not designated as paralectotypes since <xref ref-type="bibr" rid="B10">Jacoby (1890)</xref> himself explicitely excluded dark specimens from the type series. Three more paralectotypes are deposited at the MCZC: 2♂♂, labeled “Chang Yang A. E. Pratt Coll. July 1888. / 1<sup>st</sup> Jacoby Coll.”; 1♂, same but with additional labels: “Type 18269 (red label) / <italic><named-content content-type="taxon-name">Antipha varipennis</named-content></italic> Jac. / Jan.-Jul. 2004 MCZ Image Database”.</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><pmc-comment>PageBreak</pmc-comment>
<p><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> is similar to <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> by the absence of lateral fovea on the pronotum and by the antennomere IV being slightly longer than III. It can be distinguished by its characteristic color patterns (yellowish brown elytra with black longitudinal bands along suture and lateral margins) and oblong elytra (1.6 times longer than wide in contrast to 1.4 times longer than wide in <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>).</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color very variable, in pale individuals generally yellowish brown, antennae, apical 2/3 of tibiae, and tarsi dark brown, meso- and metathoracic and abdominal ventrites blackish brown, margin of scutellum, and suture and lateral margins of elytra darkened (<xref ref-type="fig" rid="F5">Fig. 23</xref>); in darker individuals black areas on elytra expanding inside, scutellum blackish brown, and head sometimes darkened (<xref ref-type="fig" rid="F5">Fig. 24</xref>); in some individuals entire elytra black (<xref ref-type="fig" rid="F5">Fig. 25</xref>); in darkest individuals entire body black (<pmc-comment>PageBreak</pmc-comment><xref ref-type="fig" rid="F5">Fig. 26</xref>). Head smooth and impunctate. Pronotum transverse, 1.8 times wider than long, evenly convex on disc and lacking fovea or punctured depression, disc with scattered fine punctures; lateral margin rounded, anterior margin slightly concave, posterior margin slightly rounded. Elytra parallel-sided, apex convergently rounded, 1.6 times longer than wide, disc with random punctures, epipleurae smooth and impunctate.</p><fig id="F5" orientation="portrait" position="float"><label>Figures 23–28.</label><caption><p>Habitus of <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> species. <bold>23</bold><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>, pale individual <bold>24</bold><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>, pale individual <bold>25</bold><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>, dark individual <bold>26</bold><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>, dark individual <bold>27</bold><italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic>, dorsal view <bold>28</bold><italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic>, ventral view.</p></caption><graphic xlink:href="ZooKeys-323-001-g005"></graphic></fig><p><bold>Male.</bold> Length 4.7–5.2 mm, width 2.4–2.8 mm. Atennomere II as long as antennomere III, ratio of length of antennomeres III to VIII (IX–XI lost) about 1.0: 1.3: 1.3: 1.3: 1.5: 1.5; ratio of length to width of antennomeres III to VIII about 2.3: 2.7: 2.9: 3.3: 3.5 (<xref ref-type="fig" rid="F6">Fig. 29</xref>). Penis (<xref ref-type="fig" rid="F6">Fig. 31</xref>) extremely slender, about 10.6 times longer than wide, parallel-sided, basally and apically widened; apex narrowly rounded, with small process in middle; tectum membranous, with dense stout setae; moderately curved in lateral view (<xref ref-type="fig" rid="F6">Fig. 32</xref>); endophallic sclerites elongate, about 0.5 times as long as penis, apex concave and membranous, with a dorsal sclerite connected at middle, almost reaching base, with a row of short setae along lateral margin at apical 1/3; in lateral view almost straight.</p><fig id="F6" orientation="portrait" position="float"><label>Figures 29–35.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>. <bold>29</bold> Antenna, male <bold>30</bold> Antenna, female <bold>31</bold> Aedeagus, dorsal view <bold>32</bold> Aedeagus, lateral view <bold>33</bold> Sternite VIII <bold>34</bold> Gonocoxae <bold>35</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g006"></graphic></fig><p><bold>Female.</bold> Length 4.5 mm, width 2.5 mm. Antenna comparatively narrower than male (<xref ref-type="fig" rid="F6">Fig. 30</xref>), ratio of length of antennomeres III to XI about 1.0: 1.3: 1.3: 1.3: 1.3: 1.3: 1.3: 1.3: 1.6; ratio of length to width of antennomeres III to XI about 2.9: 3.4: 3.5: 3.5: 3.5: 4.0: 4.0: 4.0: 4.9. Sternite VIII (<xref ref-type="fig" rid="F6">Fig. 33</xref>) very small, weakly sclerotized subapically, setae along lateral and apical margins, spiculum short. Spermathecal receptaculum (<xref ref-type="fig" rid="F6">Fig. 35</xref>) strongly swollen; pump narrow and strongly curved, apex narrowly rounded; spermathecal duct short and stout, shallowly projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F6">Fig. 34</xref>) narrowly connected in middle, elongate, about 4.7 times longer than wide, slightly curved inwards at apical 1/4, with one short setae at apical 1/3, ten short and long setae located apically or subapically.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>China (Yunnan).</p></sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Dercetina_itoi"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">itoi</named-content></named-content></title><p><named-content content-type="taxon-authority">Kimoto, 1969</named-content></p><p>http://species-id.net/wiki/Dercetina_itoi</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetes flaviventris</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B25">Weise 1922</xref>: 94 (Taiwan; misidentification); <xref ref-type="bibr" rid="B5">Chûjô 1962</xref>: 143 (redescription).</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina itoi</named-content><named-content content-type="comment"> Kimoto, 1969: 64 (Taiwan); <xref ref-type="bibr" rid="B14">Kimoto 1987</xref>: 190 (Taiwan).</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p>Holotype ♀ (KUEC): “(Taiwan) Alishan, 2300m Chiayi Hsien / 6.vii.1965 S. Ito / Japan-U. S. Co-op. Sci. Programme (yellow label) / HOLOTYPE (red label) / <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto, n. sp.”. Paratypes: 1 ex. (KMNH): “(Taiwan) Sungkang Nantou Hsien / 31.v.1965 T. Shirôzu / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto, n. sp.”; 1 ex. (KMNH): “(Taiwan) Sungkang, 2000m – Tsuifeng, 2300m Nantou Hsien / 29.vi.1965 S. Kimoto / Japan-U. S. Co-op. Sci. Programme (yellow label) / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto, n. sp.”; 1 ex. (KMNH): “[Formosa] Oiwake (Tsuifeng in Nantou county) 2,300 m 4.V.1965 T. Shirôzu / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto, n. sp.”.</p><pmc-comment>PageBreak</pmc-comment>
</sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>TAIWAN:</bold> 6♂♂, 4♀♀, Ilan, Ssuyuan, 25.IV.2009, leg. C.-F. Lee (TARI); 6♂♂, 12♀♀, same locality, 25.IV.2009, leg. M.-H. Tsou (TARI); 1♀, same locality, 9.VI.2009, leg. S.-F. Yu (TARI); 1♀, same locality, 6.V.2011, leg. <pmc-comment>PageBreak</pmc-comment>S.-F. Yu (TARI); 1♀, Hohuanshan, 17.V.2009, leg. C.-F. Lee (TARI); 1♀, Nantou, Meifeng, 7–9.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♀, same locality, 24–26.VI.1981, leg. K. S. Lin & W. S. Tang (TARI); 1♀, same locality, 22.V.1982, leg. L. Y. Chou (TARI); 1♀, same locality, 3.VII.2008, leg. M.-H. Tsou (TARI); 1♂, same locality, 20.IV.2011, leg. C.-F. Lee (TARI); 2♂♂, 2♀♀, same locality, 30.V.2011, leg. M.-H. Tsou (TARI); 1♀, Nantou, Tatachia, 9.VI.2009, leg. C.-F. Lee (TARI); 1♂, same locality, 20.VII.2009, leg. S.-F. Yu (TARI); 1♂, same locality, 21.IX.2009, leg. C.-F. Lee (TARI); 1♂, 4♀♀, same locality, 17.V.2010, leg. C.-F. Lee (TARI); 1♂, Nantou, Tsuifeng, 3.VI.1980, leg. L. Y. Chou & C. C. Chen (TARI); 2♂♂, 6♀♀, same locality, 8.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 2♀♀, same locality, 25–27.VI.1981, leg. K. S. Lin & W. S. Tang (TARI); 1♂, 4♀♀, same locality, IV.1984, leg. K. S. Lin & K. C. Chou (TARI); 1♀, same locality, 23.VII.1984, leg. K. S. Lin (TARI); 2♂♂, 3♀♀, Nantou, Tungfu, 8.V.2011, leg. C.-F. Lee (TARI); 2♂♂, Nantou, Musha (= Wushe), 18.V.-15.VI.1919, leg. T. Okuni (TARI); 2♀♀, same locality, 6–11.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 4♂♂, 3♀♀, Taichung, Pilu, 17.V.2009, leg. C.-F. Lee (TARI); 6♂♂, same locality, 17.V.2009, leg. M.-H. Tsou (TARI); 2♂♂, 1♀, Taoyuan, Lalashan, 1–2.IV.2009, leg. C.-F. Lee (TARI); 2♀♀, same locality, 14.V.2009, leg. C.-F. Lee (TARI).</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p><italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> is characterized by its metallic purple color. Some individuals of <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> with blackish brown legs are similar to <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> in color pattern. <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> can be separated from <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> by the tiny punctures on the pronotum (in contrast with the prominent puncures on the pronotum in <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic>).</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F1">Figs 3–4</xref>) dark metallic purple, antennae and legs blackish brown, abdomen yellowish brown. Antennal calli separated by deep furrow; vertex with distinct punctures, disc shagreened. Pronotum 1.6–1.7 times wider than long, disc evenly convex, with scattered fine punctures, and a pair of deep round fovea at sides; lateral margin straight, narrowed posteriorly, anterior margin straight, posterior margin slightly rounded. Elytra more or less widened posteriorly, apex convergently rounded, 1.6–1.7 times longer than wide, disc with densely prominent punctures; epipleurae impunctate, somewhat rugose.</p><p><bold>Male.</bold> Length 5.1–5.3 mm, width 2.4–2.6 mm., Antennomeres VIII-XI filiform, ratio of length of antennomeres III to XI about 1.0: 1.5: 1.4: 1.3: 1.4: 1.5: 1.6: 1.5: 1.9; ratio of length to width of antennomeres III to XI about 2.4: 3.6: 3.0: 2.7: 2.9: 3.5: 3.7: 3.5: 4.0 (<xref ref-type="fig" rid="F7">Fig. 36</xref>). Penis (<xref ref-type="fig" rid="F7">Fig. 38</xref>) slender, about 7.7 times longer than wide, parallel-sided, apically and basally widened, apex broadly rounded; tectum membranous, with scattered stout setae; weakly curved in lateral view (<xref ref-type="fig" rid="F7">Fig. 39</xref>); endophallic sclerite elongate, about 0.7 times as long as penis, apex pointed, and recurved in lateral view, with a cluster of setae near apex; dorsal sclerite with base deeply bifurcate, narrower than ventral sclerite, base bifurcate, in lateral view weakly curved.</p><fig id="F7" orientation="portrait" position="float"><label>Figures 36–42.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic>. <bold>36</bold> Antenna, male <bold>37</bold> Antenna, female <bold>38</bold> Aedeagus, dorsal view <bold>39</bold> Aedeagus, lateral view <bold>40</bold> Sternite VIII <bold>41</bold> Gonocoxae <bold>42</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g007"></graphic></fig><p><bold>Female.</bold> Length 5.9–6.6 mm, width 3.0–3.3 mm. Ratio of length of antennomeres III to XI about 1.0: 1.4: 1.3: 1.3: 1.4: 1.4: 1.4: 1.3: 1.8; ratio of length to width of antennomeres III to XI about 2.7: 3.3: 3.2: 3.0: 3.2: 3.1: 3.2: 3.1: 4.1 (<xref ref-type="fig" rid="F7">Fig. 37</xref>). Sternite VIII (<xref ref-type="fig" rid="F7">Fig. 40</xref>) weakly sclerotized subapically, apex truncate, with few setae <pmc-comment>PageBreak</pmc-comment>along apical margin, spiculum extremely long. Spermathecal receptaculum (<xref ref-type="fig" rid="F7">Fig. 42</xref>) weakly swollen; pump narrow and strongly curved, apex pointed; spermathecal duct long, deeply projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F7">Fig. 41</xref>) narrowly connected at <pmc-comment>PageBreak</pmc-comment>middle, about 4.8 times longer than wide, curved inwards at apical 1/3, with one short setae at apical 1/3, ten or eleven setae at apex.</p></sec><sec sec-type="treatment-Host plants"><title>Host plants.</title><p><named-content content-type="taxon-name">Sabiaceae</named-content>: <italic><named-content content-type="taxon-name">Sabia transarisanensis</named-content></italic> Hayata; <named-content content-type="taxon-name">Stachyuraceae</named-content>: <italic><named-content content-type="taxon-name">Stachyurus himalaicus</named-content></italic> Hook. f. & Thomson ex Benth.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>Taiwan. It is widespread in high mountains (above 2000 m) (<xref ref-type="fig" rid="F3">Fig. 13</xref>).</p></sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Dercetina_shirozui"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">shirozui</named-content></named-content></title><p><named-content content-type="taxon-authority">Kimoto, 1969</named-content></p><p>http://species-id.net/wiki/Dercetina_shirozui</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina shirozui</named-content><named-content content-type="comment"> Kimoto, 1969: 63; <xref ref-type="bibr" rid="B16">Kimoto 1989b</xref>: 260 (Taiwan); <xref ref-type="bibr" rid="B17">Kimoto 1991</xref>: 17 (Taiwan).</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p>Holotype ♀ (KUEC): “(Taiwan) Sungkang Nantou Hsien / 5.V.1965 T. Shirôzu / HOLOTYPE (red label) / <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, n. sp.”. Paratypes: 1 ex., same as holotype (KMNH); 1 ex.: “(Taiwan) Sungkang Nantou Hsien / 1.VI.1965 T. Shirôzu / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Sungkang Nantou Hsien / 18.V.1965 T. Shirôzu / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Taiko (= Tahu) – Nihonmatsu (= Sungen) Byoritsu-ken (= Miaoli county) 9.iv.1967 T. Shirozu / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Alishan, 2300m Chiayi Hsien / 6.vii.1965 S. Kimoto / Japan-U. S. Co-op. Sci. Programme (yellow label) / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, n. sp.” (KMNH); 1 ex.: “(Taiwan) Hokuko (= Peikeng) – Kaminoshima-onsen (= Hushan) Byoritsu-ken (= Miaoli county) 11.iv.1967 T. Shirozu / PARATYPE (blue label) / <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto, n. sp.” (KMNH).</p></sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>TAIWAN</bold>: 1♂, Hsinchu, Litungshan, 23.III.2007, leg. M.-H. Tsou (TARI); 3♂♂, same locality, 15.III.2009, leg. M.-H. Tsou (TARI); 1♂, Hsinchu, Mamei, 13.III.2011, leg. M.-H. Tsou (TARI); 2♀♀, Hsinchu, Tahunshan, 24.II.2009, leg. S.-F. Yu (TARI); 1♂, 2♀♀, same locality, 1.III.2009, leg. M.-H. Tsou (TARI); 1♂, Hsinchu, Wufeng, 17.II.2009, leg. S.-F. Yu (TARI); 1♂, Hualien, Pilu, 17.V.2009, leg. C.-F. Lee (TARI); 8♂♂, Ilan, Chiuchihtse, 7.XII.2008, leg. M.-H. Tsou (TARI); 1♂, 1♀, Ilan, Suyuan, 28.IV.2009, leg. M.-H. Tsou (TARI); 1♀, Kaoshiung, Tengchih (= Shihshan trail), 2–5.VI.2008, leg. C.-F. Lee (TARI); 22♂♂, same locality, 6.II.2009, leg. M.-H. Tsou (TARI); 1♀, Nantou, Hohuanshan, 18.V.2009, leg. C.-F. Lee (TARI); 1♀, Nantou, Meifeng, 5–8.VI.1980, leg. C. C. Chen (TARI); 1♀, same locality, 7–9.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♀, same locality, 24–26.VI.1981, leg. K. S. Lin & W. S. Tang (TARI); 1♂, 1♀, same locality, 22.V.1982, leg. L. Y. Chou (TARI); 1♀, Nantou, Tattaka (= Sungkang), VI.1925, leg. J. Sonan (TARI); 1♂, 1♀, same locality, 4.IV.2010, leg. Y.-T. Wang (TARI); 2♂♂, Nantou, Tatachia, 9.VI.2009, leg. C.-F. Lee (TARI); 3♀♀, same locality, 27.IV.2010, leg. C.-F. Lee (TARI); 2♀♀, Nantou, Tayuling, 9-16.VI.1981, leg. K. S. Lin & B. H. Chen (TARI); 1♀, Nantou, Tsuifeng, 3.VI.1980, <pmc-comment>PageBreak</pmc-comment>leg. L. Y. Chou & C. C. Chen (TARI); 3♀♀, same locality, 8.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♀, same locality, 25–27.VI.1981, leg. K. S. Lin & W. S. Tang (TARI); 2♀♀, Nantou, Wushe, 6–11.V.1981, leg. K. S. Lin & S. C. Lin (TARI); 1♂, Pingtung, Tahanshan, 2.II.2008, leg. M.-H. Tsou (TARI); 1♀, same locality, 3.III.2008, leg. C.-F. Lee (TARI); 1♂, 1♀, same locality, 21.III.2009, leg. M.-H. Tsou (TARI); 1♂, same locality, 6.III.2010, leg. U. Ong (TARI); 1♂, same locality, 28.IV.2012, leg. M.-H. Tsou (TARI); 2♀♀, same locality, 16.IV.2012, leg. C.-F. Lee (TARI); 1♂, 2♀♀, Taoyuan, Hsitsun, 12.IV.2009, leg. M.-H. Tsou (TARI); 2♂♂, 2♀♀, Taoyuan, Hsuehwunao, 10.IV.2011, leg. M.-H. Tsou (TARI); 1♀, Taoyuan, Lalashan, 2.IV.2009, leg. H.-J. Chen (TARI); 1♀, same locality, 2.IV.2009, leg. C.-<pmc-comment>PageBreak</pmc-comment>F. Lee (TARI); 1♂, same locality, 4.V.2010, leg. S.-F. Yu (TARI); 1♀, same locality, 14.V.2009, leg. C.-F. Lee (TARI).</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> is similar to <italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic> with metallic green elytra and yellowish brown legs but differs by its metallic green head, prothorax, meso- and metathoracic ventrites (in contrast with yellowish brown ones in <italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic>). Some individuals of <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> with blackish brown legs may be similar to <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic>. However, <italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> is distinguished from <italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> by the prominent punctures on the pronotum.</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F8">Figs 43–44</xref>) metallic green or blue, legs and abdomen yellowish brown, antenna dark brown or blackish brown. Antennal calli with deep furrow in middle; vertex with dense distinct punctures, disc shagreened. Pronotum 1.5-1.6 times wider than long, disc evenly flat, with dense prominent punctures, and a pair of deep round fovea at sides; lateral margin straight, narrowed posteriorly, anterior margin slightly concave, posterior margin slightly rounded. Elytra more or less widened posteriorly, apex convergently rounded, 1.7–1.8 times longer than wide, disc with densely prominent punctures; epipleurae with dense prominent punctures.</p><fig id="F8" orientation="portrait" position="float"><label>Figures 43–48.</label><caption><p>Habitus of <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> species. <bold>43</bold><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic>, dorsal view <bold>44</bold><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic>, ventral view <bold>45</bold><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic>, color variation <bold>46</bold><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>, dorsal view <bold>47</bold><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>, ventral view <bold>48</bold><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>, color variation.</p></caption><graphic xlink:href="ZooKeys-323-001-g008"></graphic></fig><p><bold>Male.</bold> Length 4.8–5.1 mm, width 2.1–2.3 mm. Ratio of length of antennomeres III to XI about 1.0: 2.2: 2.0: 2.0: 2.1: 2.0: 1.9: 1.7: 2.2; ratio of length to width of antennomeres III to XI about 2.4: 4.9: 3.9: 4.1: 4.1: 3.9: 3.8: 3.4: 4.6 (<xref ref-type="fig" rid="F9">Fig. 49</xref>). Penis (<xref ref-type="fig" rid="F9">Fig. 51</xref>) slender, about 7.3 times longer than wide, parallel-sided, basally widened, apex broadly rounded; tectum membranous, with two longitudinal rows of stout setae; weakly curved in lateral view (<xref ref-type="fig" rid="F9">Fig. 52</xref>); endophallus with four pairs of small teeth near apex, ventral sclerite long, about 0.7 times as long as penis, base truncate, apex bifurcate and curved in lateral view; with a cluster of setae near apex; a pair of elongate dorsal sclerites located from base to apical 1/3, apices pointed and recurved subapically.</p><fig id="F9" orientation="portrait" position="float"><label>Figures 49–55.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic>. <bold>49</bold> Antenna, male <bold>50</bold> Antenna, female <bold>51</bold> Aedeagus, dorsal view <bold>52</bold> Aedeagus, lateral view <bold>53</bold> Sternite VIII <bold>54</bold> Gonocoxae <bold>55</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g009"></graphic></fig><p><bold>Female.</bold> Length 5.5–6.3 mm, width 2.7–3.0 mm. Antenna 11-segmented, filiform (<xref ref-type="fig" rid="F9">Fig. 50</xref>), ratio of length of antennomeres III to XI about 1.0: 1.6: 1.5: 1.5: 1.5: 1.5: 1.4: 1.4: 1.7; ratio of length to width of antennomeres III to XI about 2.6: 4.3: 3.7: 3.7: 3.6: 3.7: 3.4: 3.4: 4.1. Sternite VIII (<xref ref-type="fig" rid="F9">Fig. 53</xref>) weakly sclerotized laterally and apically, with a few setae along apical margin, spiculum extremely long. Spermathecal receptaculum (<xref ref-type="fig" rid="F9">Fig. 51</xref>) elongate and weakly swollen; pump narrow and strongly curved, apex narrowly rounded; spermathecal duct short, apically narrowed, shallowly projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F9">Fig. 54</xref>) widely connected in middle, about 3.4 times longer than wide, curved inwards in apical 1/3, with ten long setae in apical 1/3.</p><p><bold>Color variation.</bold> Some populations have blackish brown legs and black antenna (<xref ref-type="fig" rid="F8">Fig. 45</xref>).</p></sec><sec sec-type="treatment-Host plants"><title>Host plants.</title><p><named-content content-type="taxon-name">Aceraceae</named-content>: <italic><named-content content-type="taxon-name">Acer albopurpurascens</named-content></italic> Hayata; <named-content content-type="taxon-name">Actinidiaceae</named-content>: <italic><named-content content-type="taxon-name">Actinidia callosa</named-content></italic> Lindl.; <named-content content-type="taxon-name">Rosaceae</named-content>: <italic><named-content content-type="taxon-name">Prunus phaeosticta</named-content></italic> (Hance) Maxim.; <named-content content-type="taxon-name">Saxifragaceae</named-content>: <italic><named-content content-type="taxon-name">Deutzia pulchra</named-content></italic> Vidal and <italic><named-content content-type="taxon-name">Schizophragma integrifolium</named-content></italic> Oliv. var. <italic>fauriei</italic> (Hayata) Hayata; <named-content content-type="taxon-name">Stachyuraceae</named-content>: <italic><named-content content-type="taxon-name">Stachyurus himalaicus</named-content></italic> Hook. f. & Thomson ex Benth.; <named-content content-type="taxon-name">Staphyleaceae</named-content>: <italic><named-content content-type="taxon-name">Turpinia formosana</named-content></italic> Nakai.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>Taiwan. It is widespread in mountains above 1000 m (<xref ref-type="fig" rid="F3">Fig. 14</xref>).</p><pmc-comment>PageBreak</pmc-comment>
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</sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Dercetina_taiwana"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">taiwana</named-content></named-content></title><p><named-content content-type="taxon-authority">(Chûjô, 1938)</named-content><named-content content-type="taxon-status">stat. r.</named-content></p><p>http://species-id.net/wiki/Dercetina_taiwana</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetis taiwana</named-content><named-content content-type="comment"> Chûjô, 1938: 140; <xref ref-type="bibr" rid="B5">Chûjô 1962</xref>: 145 (redescription); <xref ref-type="bibr" rid="B7">Gressitt and Kimoto 1963</xref>: 710 (as synonymy of <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>).</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetis taiwana</named-content><named-content content-type="comment"> ab. <italic>melania</italic> Chûjô, 1938: 140; <xref ref-type="bibr" rid="B7">Gressitt and Kimoto 1963</xref>: 710 (confirmed as infraspecific variation of <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>)</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetis taiwana</named-content><named-content content-type="comment"> var. <italic>melania</italic>: <xref ref-type="bibr" rid="B5">Chûjô 1962</xref>: 146 (redescription).</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetis taiwana</named-content><named-content content-type="comment"> f. <italic>melania</italic>: <xref ref-type="bibr" rid="B6">Chûjô 1965</xref>: 95 (Taiwan).</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina chinensis</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B12">Kimoto 1966</xref>: 33 (Taiwan); <xref ref-type="bibr" rid="B13">Kimoto 1969</xref>: 66 (Taiwan); <xref ref-type="bibr" rid="B23">Takizawa et al. 1995</xref>: 63 (Taiwan).</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina flavocincta</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B15">Kimoto 1989a</xref>: 260 (Taiwan); <xref ref-type="bibr" rid="B17">Kimoto 1991</xref>: 17 (Taiwan).</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p><italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic>: Lecotype ♂, here designated, labeled: “Formosa Shinchiku (= Hsinchu), -18. VII 1–30. J. Sonan / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / 1916” (TARI). Paralectotypes: 3♀♀: “Urai (= Wulai, in Taipei county) FORMOSA 28.III.1932 COL. M. CHUJO / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / 2379, 2380, 2384 (respectively)” (TARI); 2♀♀: “Taiheizan (= Taipingshan, in Ilan county) FORMOSA Jul 1930 S. Minowa / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / 2162 or 2385” (TARI); 1♀: “Formosa Arisan (= Alisan, in Chiayi county), 1918 X 2-23. J. Sonan COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / 2159” (TARI); 1♂: “Formosa Y. Miwa / Rimogan (= Fushan, in Taipei county) 22.7.1929 (on the back) / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / 2160” (TARI); 1♀: “Formosa Y. Miwa / Kobayashi, 25.7.1929 / Syntypus (red label) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / DEI Müncheberg Col - 03095” (SDEI); 1♀: “Paroe (Form.) H. Sauter IX.1912 / Syntypus (red label) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / DEI Müncheberg Col - 03096” (SDEI); 1♀: “Taihorin (= Talin, in Chiayi county) Formosa H. Sauter, 1911 / 7.VII. / Syntypus (red label) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / DEI Müncheberg Col - 03097” (SDEI); 1♀: “Formosa Y. Miwa / Hsuanyan (in Japanese) 23.7.1929 / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> CHÛJÔ DET. M. CHUJO / 2161” (TARI).</p><pmc-comment>PageBreak</pmc-comment>
<p><italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> ab. <italic>melania</italic>: Syntypes: 1♂, 1♀: “Urai (= Wulai, in Taipei county) FORMOSA 28.III.1932 COL. M. CHUJO / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> ab. <italic>melania</italic> CHÛJÔ DET. M. CHUJO / 2374 or 2375” (TARI); 2♀♀: “Urai (= Wulai, in Taipei county) FORMOSA 28.III.1932 COL. M. CHUJO / Syntypus (red label) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> ab. <italic>melania</italic> CHÛJÔ DET. M. CHUJO / DEI Müncheberg Col – 03098 and 03099” (SDEI); 1♂, 1♀: “Formosa Shinchiku (= Hsinchu), -18. VII 1-30. J. Sonan / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> ab. <italic>melania</italic> CHÛJÔ DET. M. CHUJO / 2163 or 1923” (TARI); 1♀: “Formosa Y. Miwa / Urai (= Wulai in Taipei county) 20.7.1929 (on the back) / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> ab. <italic>melania</italic> CHÛJÔ DET. M. CHUJO / 1915” (TARI); 1♂: “Formosa Y. Miwa / Hsitsun (in Chinensis) 24.7.1929 (on the back) / COType (circular label with yellow letters and border) / <italic><named-content content-type="taxon-name">Dercetis taiwana</named-content></italic> ab. <italic>melania</italic> CHÛJÔ DET. M. CHUJO / 2164”.</p></sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>CHINA</bold>: 1♂, 1♀, Guangdong, Tsha-jiu-san, V.-VI.1912, leg. S. V. Mell (KMNH); 1♂, Hubei, Lichuan, Suisapa, 23.VIII.1948, leg. J. L. Gressitt (KMNH); 1♂, Hubei, Lichuan, Lianghokeu, 1.IX.1948, leg. Gressitt & Djou (KMNH); <bold>TAIWAN</bold>: 1♀, Hsinchu, Chienshih, 26.VII.2008, leg. H.-J. Chen (TARI); 1♂, same locality, 26.IX.2009, leg. H.-J. Chen (TARI); 1♂, 1♀, Hsinchu, Lupi, 24.VI.2008, leg. H. Lee (TARI); 1♀, Hsinchu, Peitelaman, 26.VI.2008, leg. S.-F. Yu (TARI); 3♂♂, 5♀♀, Hsinchu, Talu trail, 22.VIII.2009, leg. Y.-L. Lin (TARI); 1♀, same locality, 19.VI.2010, leg. Y.-L. Lin (TARI); 2♂♂, Hsinchu, Wufeng, 12.VII.2008, leg. H.-J. Chen (TARI); 1♀, same locality, 29.IX.2009, leg. Y.-L. Lin (TARI); 1♂, 2♀♀, Hsinchu, Yulao, 3.IV.2011, leg. M.-H. Tsou (TARI); 2♀♀, Ilan, Fushan Botanical Park, 1.IV.2008, leg. H.-J. Chen (TARI); 4♂♂, 5♀♀, same locality, 1.IV.2008, leg. M.-H. Tsou (TARI); 1♂, same locality, 2.IV.2008, leg. H.-J. Chen (TARI); 2♂♂, same locality, 20.III.2009, leg. C.-F. Lee (TARI); 1♂, 1♀, Ilan, Mingchi, 17.III.2007, leg. M.-H. Tsou (TARI); 2♂♂, 7♀♀, same locality, 29.VII.2007, leg. M.-H. Tsou (TARI); 3♂♂, 2♀♀, same locality, 27.IV.2008, leg. S.-F. Yu (TARI); 2♀♀, same locality, 25.V.2008, leg. M.-H. Tsou (TARI); 1♀, Ilan, Suchi trail, 19.V.1910, leg. H.-J. Chen (TARI); 1♀, Ilan, Taipingshan, 3.VI.2007, leg. S.-F. Yu (TARI); 1♂. 5♀♀, Ilan, Tsuifenghu, 3.VII.2010, leg. M.-H. Tsou (TARI); 1♀, Taichung, Yuantsuishan, 16.VII.2010, leg. J.-C. Chen (TARI); 2♀♀, Taipei, Chutzuhu, 16.IX.2007, leg. S.-F. Yu (TARI); 3♂♂, same locality, 15.VI.2008, leg. M.-H. Tsou (TARI); 1♂, 1♀, Taipei, Erhkoshan, 26.XI.2006, leg. M.-H. Tsou (TARI); 1♂, 1♀, Taipei, Fengkueitsui, 29.VI.2007, leg. S.-F. Yu (TARI); 1♀, Taipei, Fushan, 5.IV.2007, leg. S.-F. Yu (TARI); 1♂, 2♀♀, Taipei, Hsiaoyuken, 29.III.2008, leg. M.-H. Tsou (TARI); 1♂, 2♀♀, Taipei, Lengshuiken, 22.VI.2008, leg. S.-F. Yu (TARI); 3♂♂, 2♀♀, Taipei, Menghu, 27.IX.2007, leg. S.-F. Yu (TARI); 3♂♂, 7♀♀, Taipei, Pinglin, 29.III.2008, leg. M.-H. Tsou (TARI); 1♂, 3♀♀, Taipei, Wulai, 10.VII.2007, leg. H.-T. Cheng (TARI); 4♀♀, same locality, 27.IX.2006, leg. H.-J. Chen (TARI); 2♂♂, 3♀♀, same locality, 22.X.2006, leg. S.-F. Yu (TARI); 1♂, 1♀, same locality, 26.X.2006, leg. S.-F. Yu (TARI); 2♀♀, same locality, 19.VI.2007, leg. M.-H. Tsou (TARI); 2♀♀, 30.IX.2007, leg. M.-H. Tsou (TARI); 1♀, Taipei, Yangmingshan, 3.III.1998, leg. C.-F. Lee (TARI); 1♂, same locality, 15.III.1998, leg. C.-F. Lee (TARI); 1♂, 1♀, same locality, 29.VIII.2006, leg. H.-J. Chen (TARI); 1♀, same locality, 15.IV.2007, leg. M.-H. Tsou (TARI); 1♀, same locality, 19.V.2007, leg. M.-H. Tsou (TARI); 2♀♀, same locality, 1.VI.2007, leg. S.-F. Yu (TARI); 3♂♂, 1♀, same locality, 23.VI.2007, leg. S.-F. Yu (TARI); 1♂, Taipei, Yingtzuling, 24.VII.2010, leg. Y.-L. Lin (TARI); 2♀♀, same locality, 25.IX.2010, leg. Y.-L. Lin (TARI); 1♀, Taoyuan, Hsiaowulai, <pmc-comment>PageBreak</pmc-comment>29.IX.2009, leg. M.-H. Tsou (TARI); 1♂, same locality, 1.VI.2010, leg. S.-F. Yu (TARI); 1♂, Taoyuan, Tsuehwunao, 10.IV.2011, leg. M.-H. Tsou (TARI); 2♂♂, Taoyuan, Mamei, 3.IV.2011, leg. M.-H. Tsou (TARI); 6♂♂, 13♀♀, Taoyuan, Paling, 8.XI.2009, leg. M.-H. Tsou (TARI); 1♂, same locality, 11.IV.2010, leg. M.-H. Tsou (TARI); 1♂, 1♀, Taoyuan, Tungyanshan, 14.VII.2008, leg. H. Lee (TARI); 1♀, same locality, 17.IV.2009, leg. H. Lee (TARI); 3♂♂, same locality, 10.V.2009, leg. H. Lee (TARI); 1♀, same locality, 16.VI.2009, S.-F. Yu (TARI);</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> is similar to <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> and <italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n. in the absence of lateral fovea on the pronotum and antennomere III slightly longer than IV. <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> and <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> are separated from <italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n. by its sexually dimorphic antennae. Both species have their distinct color patterns in most individuals: the bluish black elytra with white transverse band at middle in <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>; the yellowish brown elytra with or without longitudinal black bands long suture and lateral margins in <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>. Although some individual specimens of both species share the same color pattern, <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> differs from <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> by a more oval elytra (1.4 times longer than wide in contrast with 1.6 times longer than wide in <italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic>).</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F8">Figs 46–47</xref>) bluish black, head (except eyes and antennae), prothorax, coxae, and tibiae yellowish brown; elytra with one transverse white stripe at basal 1/3. Head smooth and impunctate. Pronotum transverse, 1.9–2.0 times wider than long, evenly convex on disc and lacking fovea or punctured depression, disc with scattered fine punctures; lateral margin rounded, anterior margin concave, posterior margin slightly rounded. Elytra more or less widened posteriorly, apex convergently rounded, 1.4 times longer than wide, disc with punctures in part arranged in longitudinal rows, epipleurae smooth and impunctate.</p><p><bold>Male.</bold> Length 4.0–4.5 mm, width 2.2–2.5 mm. Ratio of length of antennomeres III to XI about 1.0: 1.3: 1.3: 1.3: 1.3: 1.2: 1.2: 1.1: 1.3; ratio of length to width of antennomeres III to XI about 2.5: 2.9: 3.0: 3.2: 3.3: 3.3: 3.6: 3.6: 4.5 (<xref ref-type="fig" rid="F10">Fig. 56</xref>). Penis (<xref ref-type="fig" rid="F10">Fig. 58</xref>) extremely slender, about 8.4 times longer than wide, parallel-sided, basally widened, apex narrowly rounded; tectum membranous, with scatted stout setae; weakly curved in lateral view (<xref ref-type="fig" rid="F10">Fig. 59</xref>); endophallic sclerite elongate, about 0.4 times as long as penis, base and apex concave and membranous, with a dorsal sclerite connected at basal 1/4, almost reaching base, with a row of short setae along lateral margin at apical 1/4; in lateral view almost straight.</p><fig id="F10" orientation="portrait" position="float"><label>Figures 56–62.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic>. <bold>56</bold> Antenna, male <bold>57</bold> Antenna, female <bold>58</bold> Aedeagus, dorsal view <bold>59</bold> Aedeagus, lateral view <bold>60</bold> Sternite VIII <bold>61</bold> Spermatheca <bold>62</bold> Gonocoxae.</p></caption><graphic xlink:href="ZooKeys-323-001-g010"></graphic></fig><p><bold>Female.</bold> Length 5.2–5.7 mm, width 3.0–3.3 mm. Antenna 11-segmented, filiform (<xref ref-type="fig" rid="F10">Fig. 57</xref>), comparatively narrower than in male, ratio of length of antennomeres III to XI about 1.0: 1.3: 1.3: 1.3: 1.3: 1.3: 1.3: 1.2: 1.5; ratio of length to width of antennomeres III to XI about 2.9: 3.1: 3.3: 3.5: 3.6: 3.5: 3.9: 4.0: 5.4. Sternite VIII (<xref ref-type="fig" rid="F10">Fig. 60</xref>) weakly sclerotized subapically, apex truncate, setae along lateral and apical margin, spiculum long. Spermathecal receptaculum (<xref ref-type="fig" rid="F10">Fig. 61</xref>) swollen; pump narrow and strongly curved, apex narrowly rounded; spermathecal duct short, deeply projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F10">Fig. 62</xref>) narrowly connected in middle, about 4.6 times longer than wide, straight, with one short setae at apical 1/3 and nine setae at apex.</p><pmc-comment>PageBreak</pmc-comment>
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<p><bold>Color variation.</bold> A number of individuals have transverse white strip on elytra reduced at various degrees, or even totally absent (<xref ref-type="fig" rid="F8">Fig. 48</xref>); some have the vertex, clypeus, and labrum darkened; a few individuals have pronotum darkened.</p></sec><sec sec-type="treatment-Host plants"><title>Host plants.</title><p><named-content content-type="taxon-name">Betulaceae</named-content>: <italic><named-content content-type="taxon-name">Alnus formosana</named-content></italic> (Burkill ex Forbes & Hemsl.) Makin; <named-content content-type="taxon-name">Compositae</named-content>: <italic><named-content content-type="taxon-name">Eupatorium formosanum</named-content></italic> Hayata; <named-content content-type="taxon-name">Fagaceae</named-content>: <italic><named-content content-type="taxon-name">Quercus variabilis</named-content></italic> Bl.; <named-content content-type="taxon-name">Lauraceae</named-content>: <italic><named-content content-type="taxon-name">Cinnamomum camphora</named-content></italic> (L.) Presl. and <italic><named-content content-type="taxon-name">Litsea cubeba</named-content></italic> (Lour.) Persoon; <named-content content-type="taxon-name">Lythraceae</named-content>: <italic><named-content content-type="taxon-name">Lagerstroemia subcostata</named-content></italic> Koehne; <named-content content-type="taxon-name">Moraceae</named-content>: <italic><named-content content-type="taxon-name">Humulus scandens</named-content></italic> (Lour.) Merr.; <named-content content-type="taxon-name">Rosaceae</named-content>: <italic><named-content content-type="taxon-name">Prunus campanulata</named-content></italic> Maxim.; <named-content content-type="taxon-name">Rutaceae</named-content>: <italic><named-content content-type="taxon-name">Tetradium glabrifolium</named-content></italic> (Champ. ex Benth.) T. Hartley; <named-content content-type="taxon-name">Stachyuraceae</named-content>: <italic><named-content content-type="taxon-name">Stachyurus himalaicus</named-content></italic> Hook. f. & Thomson ex Benth.; <named-content content-type="taxon-name">Ulmaceae</named-content>: <italic><named-content content-type="taxon-name">Trema orientalis</named-content></italic> (L.) Bl.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>China (Guandung, Hubei) and Taiwan. <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> is widespread in northern Taiwan from lowlands to high mountains (above 2000 m) (<xref ref-type="fig" rid="F3">Fig. 15</xref>). This species is rather abundant.</p></sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Dercetina_unifasciata"><named-content content-type="genus">Dercetina</named-content><named-content content-type="species">unifasciata</named-content></named-content></title><p><named-content content-type="taxon-authority">(Allard, 1889)</named-content><named-content content-type="taxon-status">stat. r. and comb. n.</named-content></p><p>http://species-id.net/wiki/Dercetina_unifasciata</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Antipha unifasciata</named-content><named-content content-type="comment"> Allard, 1889: 107; <xref ref-type="bibr" rid="B16">Kimoto 1989b</xref>: 229. (as synonymy of <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic>)</named-content></p></list-item></list><sec sec-type="treatment-Type material"><title>Type material.</title><p><italic><named-content content-type="taxon-name">Antipha unifasciata</named-content></italic>: Holotype ♀ (head lost; ISNB): “Cambodge / Coll. Chapuis / E. Allard det.: <italic><named-content content-type="taxon-name">Antipha unifasciata</named-content></italic> All. / <italic><named-content content-type="taxon-name">Antipha unifasciata</named-content></italic> All. (yellow label) / TYPE (pink label) / cf. Ann. Soc Ent. Belg., XXXIII, 1889, p. 107-108 / sec. Weise, Col. Cat. Junk (78), 1924: p. 145<italic><named-content content-type="taxon-name">Dercetis unifasciata</named-content></italic> All.”.</p></sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>CAMBODIA</bold>: 1♀, Kampot prov., Bokor, 8.V.1961, leg. J. L. Nickel (USNM); <bold>INDIA</bold>: 1♀ (BMNH), Darjeeling, Bengal, Debrepani, 6000’, 18.IX.1929, leg. J.C.M. Gardner; <bold>LAOS</bold>: 1♀, Attapeu Prov., Houei Kong, 31.V.1965, leg. Native Collector (BPBM); 1♀, Borikhane Prov., Pakkading, 31.VII.1965, leg. Native Collector (BPBM); 1♀, Sayabouly Prov., Sayaboury, 16.IV.1965, leg. J. L. Gressitt (BPBM); 1♀, Sedone Prov., Paksong, 18.V.1965, leg. P. D. Ashlock (BPBM); 1♂, 1♀, Vientiane Prov., Ban Van Eue, 20km E of Phou-kow-kuei, 1–15.V.1965, leg. J. A. Rondon (BPBM); 1♂, same locality, 11.IV.1965, leg. J. L. Gressitt (KMNH); 1♂, 1♀, same locality, 12.IV.1965, leg. J. L. Gressitt (BPBM); 1♂, 15.VIII.1965, leg. J. L. Gressitt (BPBM); 1♀, same locality, 15.III.1966, leg. Native Collector (BPBM); 1♀, 15.XII.1966, leg. Native Collector (BPBM); 1♀, same locality, 2.II.1968, leg. Native Collector (BPBM); 1♀, same locality, 15.II.1968, leg. Native Collector (BPBM); 1♀, same locality, 15.VIII.1968, leg. Native Collector (BPBM); 1♀, Phou-kow-kuei, 15.IV.1965, leg. J. L. Gressitt (BPBM); 1♀, Vientiane Prov., Vientiane, 30.IV.1967, leg. Native Collector (BPBM); 1♀, Xieng Kyouang Prov., Ban Sam Thang, 5.XI.1965, leg. Native Collector (BPBM).</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><pmc-comment>PageBreak</pmc-comment>
<p><italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic> is similar to <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> and <italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n. with the evenly convex pronotum and similar color pattern but differing by antennomere IV much longer than III (1.8 times in <italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic> in contrast with 1.2 or 1.3 times in <italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> and <italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n.).</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F11">Figs 63–64</xref>) bluish black, head, prothorax, coxae, and tibiae yellowish brown; elytra with one transverse white stripe at basal 1/3. Head smooth and impunctate. Pronotum transverse, 2.0 times wider than long, evenly convex on disc and lacking fovea or punctured depression, disc with scattered fine punctures; lateral margin almost straight, anterior margin slightly concave, posterior margin slightly rounded. Elytra more or less widened posteriorly, apex convergently rounded, 1.4 times longer than wide, disc with punctures in part arranged in longitudinal rows, epipleurae smooth and impunctate.</p><fig id="F11" orientation="portrait" position="float"><label>Figures 63–68.</label><caption><p>Dorsal habitus of <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> and <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic> species. <bold>63</bold><italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic>, male <bold>64</bold><italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic>, female <bold>65</bold><italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic>, male <bold>66</bold><italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic>, female <bold>67</bold><italic><named-content content-type="taxon-name">Arthrotus nakanei</named-content></italic>, male; 68. <italic><named-content content-type="taxon-name">Arthrotus nakanei</named-content></italic>, female.</p></caption><graphic xlink:href="ZooKeys-323-001-g011"></graphic></fig><pmc-comment>PageBreak</pmc-comment>
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<p><bold>Male.</bold> Length 4.7 mm, width 2.5 mm. Ratio of length of antennomeres III to XI about 1.0: 1.8: 1.9: 1.9: 1.9: 1.8: 1.8: 1.7: 2.0; ratio of length to width of antennomeres III to XI about 3.8: 6.0: 6.2: 6.1: 6.3: 5.9: 6.2: 6.3: 7.1 (<xref ref-type="fig" rid="F12">Fig. 69</xref>). Penis (<xref ref-type="fig" rid="F12">Fig. 71</xref>) extremely slender, about 11.0 times longer than wide, parallel-sided, basally and apically widened, apex narrowly rounded; tectum membranous, with scattered long setae; weakly curved in lateral view, apex recurved and pointed (<xref ref-type="fig" rid="F12">Fig. 72</xref>); endophallic sclerites elongate, about 0.6 times as long as penis; apex pointed, ventrally covered with a small apically pointed sclerite; with a cluster of long setae at middle; sinuate in lateral view.</p><fig id="F12" orientation="portrait" position="float"><label>Figures 69–75.</label><caption><p><italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic>. <bold>69</bold> Antenna, male <bold>70</bold> Antenna, female <bold>71</bold> Aedeagus, dorsal view <bold>71</bold> Aedeagus, lateral view <bold>73</bold> Sternite VIII <bold>74</bold> Gonocoxae <bold>75</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g012"></graphic></fig><p><bold>Female.</bold> Length 4.7–5.8 mm, width 2.7–3.2 mm. Antenna filiform (<xref ref-type="fig" rid="F12">Fig. 70</xref>), similar to male, ratio of length of antennomeres III to XI about 1.0: 1.7: 1.7: 1.7: 1.8: 1.7: 1.6: 1.5: 1.9; ratio of length to width of antennomeres III to XI about 3.9: 6.6: 6.2: 6.3: 6.3: 5.7: 5.7: 5.4: 6.7. Sternite VIII (<xref ref-type="fig" rid="F12">Fig. 73</xref>) weakly sclerotized subapically, apex rounded, with dense short setae along apical margin, spiculum extremely long. Spermathecal receptaculum (<xref ref-type="fig" rid="F12">Fig. 75</xref>) slightly swollen; pump narrow and strongly curved, apex widened and truncate; spermathecal duct short, narrowed in middle, shallowly projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F12">Fig. 74</xref>) very close at middle, about 5.9 times longer than wide, slightly curved inwards near apex, apex rounded, with one or two short setae at apical 1/3, two subapically, eight setae at apex.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>Cambodia, India, Laos.</p></sec></sec><sec sec-type="Key to species of the genus Dercetina from Taiwan and their similar species"><title>Key to species of the genus <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> from Taiwan and their similar species</title><table-wrap content-type="key" orientation="portrait" id="d36e2191" position="anchor"><table frame="hsides" rules="groups"><tbody><tr><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">Pronotum with lateral fovea</td><td rowspan="1" colspan="1">2</td></tr><tr><td rowspan="1" colspan="1">–</td><td rowspan="1" colspan="1">Pronotum evenly convex and without lateral fovea</td><td rowspan="1" colspan="1">4</td></tr><tr><td rowspan="1" colspan="1">2.</td><td rowspan="1" colspan="1">Head, prothorax, meso- and metathoracic ventrites yellowish bown</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina azumai</named-content></italic> Gressitt & Kimoto</td></tr><tr><td rowspan="1" colspan="1">–</td><td rowspan="1" colspan="1">Head, prothorax, meso- and metathoracic ventrites metallic green or purple</td><td rowspan="1" colspan="1">3</td></tr><tr><td rowspan="1" colspan="1">3</td><td rowspan="1" colspan="1">Metallic green; pronotum with prominent punctures</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina shirozui</named-content></italic> Kimoto</td></tr><tr><td rowspan="1" colspan="1">–</td><td rowspan="1" colspan="1">Metallic purple; pronotum with fine punctures</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina itoi</named-content></italic> Kimoto</td></tr><tr><td rowspan="1" colspan="1">4</td><td rowspan="1" colspan="1">Antennomere IV much longer than III (1.8 times)</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic> (Allard)</td></tr><tr><td rowspan="1" colspan="1">–</td><td rowspan="1" colspan="1">Antennomere IV a little longer than III (1.2–1.3 times)</td><td rowspan="1" colspan="1">5</td></tr><tr><td rowspan="1" colspan="1">5</td><td rowspan="1" colspan="1">Elytra oblong (1.6 times longer than wide); elytra yellowish brown with black bands along suture and lateral margins in most individuals</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina chinensis</named-content></italic> (Weise)</td></tr><tr><td rowspan="1" colspan="1">–</td><td rowspan="1" colspan="1">Elytra oval (1.4 times longer than wide); elytra bluish black with white transverse band at middle in most individuals</td><td rowspan="1" colspan="1">6</td></tr><tr><td rowspan="1" colspan="1">6</td><td rowspan="1" colspan="1">Antenna yellowish brown; endophallic sclerites longer</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina barclayi</named-content></italic> sp. n.</td></tr><tr><td rowspan="1" colspan="1">–</td><td rowspan="1" colspan="1">Antenna blackish brown, endophallic sclerites shorter</td><td rowspan="1" colspan="1"><italic><named-content content-type="taxon-name">Dercetina taiwana</named-content></italic> (Chûjô)</td></tr><pmc-comment>PageBreak</pmc-comment>
</tbody></table></table-wrap></sec><sec sec-type="Species excluded from the genus Dercetina"><title>Species excluded from the genus <italic><named-content content-type="taxon-name">Dercetina</named-content></italic></title><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Arthrotus_flavocincta"><named-content content-type="genus">Arthrotus</named-content><named-content content-type="species">flavocincta</named-content></named-content></title><p><named-content content-type="taxon-authority">(Hope, 1831)</named-content><named-content content-type="taxon-status">comb. n.</named-content></p><p>http://species-id.net/wiki/Arthrotus_flavocincta</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Galleruca flavocincta</named-content><named-content content-type="comment"> Hope, 1831: 29.</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Monolepta flavocincta</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B26">Weise 1924</xref>: 168.</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetis flavocincta</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B21">Maulik 1936</xref>: 355.</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina flavocincta</named-content><named-content content-type="comment"> : <xref ref-type="bibr" rid="B19">Kimoto and Takizawa 1972</xref>: 222 (Nepal); <xref ref-type="bibr" rid="B16">Kimoto 1989b</xref>: 229 (Thailand, Laos, Vietnam).</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Antipha flavofasciata</named-content><named-content content-type="comment"> Baly, 1879: 456; <xref ref-type="bibr" rid="B21">Maulik 1936</xref>: 355. (as synonym of <italic><named-content content-type="taxon-name">Dercetina flavocincta</named-content></italic>) synonymy confirmed</named-content></p></list-item><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetes femoralis</named-content><named-content content-type="comment"> Weise, 1922: 97; Kimoto 1989: 229 (as synonym of <italic>flavocincta</italic>) synonymy confirmed</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p><italic><named-content content-type="taxon-name">Galleruca flavocincta</named-content></italic>: Holotype ♀ (BMNH), labeled: “Type (circular label with red border) / <italic><named-content content-type="taxon-name">Antipha flavocincta</named-content></italic> Hope Type (<italic><named-content content-type="taxon-name">Galleruca</named-content></italic>) / Hardwicke Bequest”.</p><p><italic><named-content content-type="taxon-name">Antipha flavofasciata</named-content></italic>: Holotype ♀ (BMNH), labeled: “Type (circular label with red border) / Assam / <italic><named-content content-type="taxon-name">Antipha flavofasciata</named-content></italic> Baly / <italic><named-content content-type="taxon-name">Antipha flavofasciata</named-content></italic> Baly Cist. Ent. II p. 56 [on the back] / Baly Coll.”.</p><p><italic><named-content content-type="taxon-name">Dercetina femoralis</named-content></italic>: Holotype ♂ (NHRS): “Tonkin Montes Mauson / April,May 2-3000’ H Frustorfer / femoralis m. / Typus (red label) / NHRS-JLKB 000020341”.</p></sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>INDIA</bold>: 2♀♀, Assam, 15.VIII.1918 (BMNH); 1♀, Assam, Jorhat, 3721, coll. H. E. Andrewes (BMNH); 1♀, Darjeeling, Bengal, Debrepani, 6000’, 18.IX.1929, leg. J.C.M. Gardner (BMNH); 2♂♂, 1♀, Darjeeling, Bengal, Lopchu, 5000’, 21.IX.1929, leg. J.C.M. Gardner (BMNH); 1♀, Mongpoh, Khasi Hills, 2178, coll. H. E. Andrewes (BMNH); 2♀♀, Sikkim (MUHUB); 2♀♀, Simla (MNHUB); <bold>LAOS</bold>: 1♀, Vientiane Prov., Ban Van Eue, 15.III.1966, leg. Native Collector (BPBM); 1♀, Xiengkhoang Prov., Ban Theuong, 1035 m, 10-17.VIII.1960, leg. R. E. Leech (BPBM); 1♀, Blao (Balao), 500 m, 14–21.X.1960, leg. C. M. Yoshimoto (BPBM); 1♀, Muong Sing, NW of Luang Prabang, 650 m, 6–10.VI.1960, leg. S. Quate & L. Quate (BPBM); <bold>THAILAND</bold>: 1♀, Chiengmai, 3.XII.1962 (KMNH); 2♀♀, Khao Yai Natioal Park, 800–1000m, 18.VIII.1992, leg. D. Furth (USNM); <bold>VIETNAM</bold>: 2♀♀, Dalat, 1500 m, 29.IV.–4.V.1960, leg. C. M. Yoshimoto (BPBM); 1♀, Fyan, 1200 m, 11.VII. –9.VIII.1961, leg. N. R. Spencer (BPBM); 1♀, M’Drak, E of BanMeThuot, 400-600 m, 8–19.1960, leg. C. M. Yoshimoto (BPBM);</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p>Females of <italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic> are similar to <italic><named-content content-type="taxon-name">Dercinta unifasciata</named-content></italic> with antennomere IV much long than III, but differs by more slender antenomeres IV-VII (4.5–5.7 times longer than wide in <italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic> in contrast with 6.0-6.6 times longer than in wide in <italic><named-content content-type="taxon-name">Dercetina unifasciata</named-content></italic>). Males of <italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic> are easily recognized by the similar length of antnnomeres III and IV.</p><pmc-comment>PageBreak</pmc-comment>
</sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F11">Figs 65–66</xref>) bluish black, head, prothorax, coxae, and tibiae yellowish brown; elytra with one transverse white stripe in middle; vertex darkened. Head smooth and impunctate. Pronotum transverse, 2.1 times wider than long, evenly convex on disc and lacking fovea or punctured depression, disc with scattered fine punctures; lateral margin straight, anterior margin slightly concave, posterior margin slightly rounded. Elytra parallel-sided, apex convergently rounded, 1.6 times longer than wide, disc with random punctures, epipleurae smooth and impunctate.</p><p><bold>Male.</bold> Length 4.3 mm, width 2.0 mm. Antenna filiform (<xref ref-type="fig" rid="F13">Fig. 76</xref>), antennomere II as long as antennomer III, ratio of length of antennomeres III to XI about 1.0: 3.5: 3.4: 3.3: 3.4: 3.3: 3.0: 2.8: 3.4; ratio of length to width of antennomeres III to XI about 2.1: 5.9: 5.7: 5.7: 5.4: 5.2: 4.5: 4.2: 5.4. Penis (<xref ref-type="fig" rid="F13">Fig. 78</xref>) extremely slender, about 9.4 times longer than wide, parallel-sided, basally widened but apically narrowed; apex narrowly rounded; tectum membranous, with dense long setae; weakly curved in lateral view, apex hooked (<xref ref-type="fig" rid="F13">Fig. 79</xref>); endophallic sclerites elongate, about 0.6 times as long as penis, with a cluster of long setae near apex; in lateral view apex curved; from basal 1/3 to apical 1/3 dorsally covered with a pair of longitudinal areas covered by dense setae.</p><fig id="F13" orientation="portrait" position="float"><label>Figures 76–82.</label><caption><p><italic><named-content content-type="taxon-name">Arthrotus flavocincta</named-content></italic>. <bold>76</bold> Antenna, male <bold>77</bold> Antenna, female <bold>78</bold> Aedeagus, dorsal view <bold>79</bold> Aedeagus, lateral view <bold>80</bold> Sternite VIII <bold>81</bold> Gonocoxae <bold>82</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g013"></graphic></fig><p><bold>Female.</bold> Length 4.4–6.6 mm, width 2.4–3.3 mm. Antenna much shorter than male, comparatively narrower than male (<xref ref-type="fig" rid="F13">Fig. 77</xref>), ratio of length of antennomeres III to XI about 1.0: 1.8: 1.8: 1.8: 1.8: 2.0: 1.8: 1.8: 2.3; ratio of length to width of antennomeres III to XI about 3.1: 5.7: 4.5: 4.6: 4.5: 5.2: 4.9: 5.1: 5.2. Sternite VIII (<xref ref-type="fig" rid="F13">Fig. 80</xref>) weakly sclerotized subapically, apex rounded, setae along lateral and apical margins, spiculum long. Spermathecal receptaculum (<xref ref-type="fig" rid="F13">Fig. 82</xref>) slightly swollen; pump narrow and strongly curved, apex narrowly rounded; spermathecal duct short and wide, shallowly projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F13">Fig. 81</xref>) narrowly connected in middle, extremely elongate, about 6.6 times longer than wide, slightly curved inwards at apical 1/4, with one short setae at apical 1/3, another short setae near apex, six to eight setae at apex.</p><p><bold>Color variation.</bold> Some specimens have blackish brown meso- and metacoxae, femora, and vertex, or yellowish brown abdomen.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>India, Laos, Nepal, Thailand, Vietnam.</p></sec></sec><sec sec-type="taxon-treatment"><title><named-content content-type="taxon-name" xlink:href="http://species-id.net/wiki/Arthrotus_nakanei"><named-content content-type="genus">Arthrotus</named-content><named-content content-type="species">nakanei</named-content></named-content></title><p><named-content content-type="taxon-authority">(Kimoto, 1969)</named-content><named-content content-type="taxon-status">comb. n.</named-content></p><p>http://species-id.net/wiki/Arthrotus_nakanei</p><list list-type="simple" list-content="nomenclature-citation-list"><list-item><p content-type="nomenclature-citation"><named-content content-type="taxon-name">Dercetina nakanei</named-content><named-content content-type="comment"> Kimoto, 1969: 65.</named-content></p></list-item></list><sec sec-type="treatment-Type series"><title>Type series.</title><p>Holotype ♀ (KUEC): “(Taiwan) Sungkan, 2000m – Tsifeng, 2300m Nantou Hsien / 29.vi.1965 T. Nakane / Japan-U.S. Co-op. Sci. Programme (yellow label) / <italic><named-content content-type="taxon-name">Dercetina nakanei</named-content></italic> Kimoto, n. sp. / HOLOTYPE (red label)”. Paratypes: 1♀ (KMNH): “(Taiwan) Sungkang Nantou Hsien / 19.v.1965 T. Shirôzu / <italic><named-content content-type="taxon-name">Dercetina nakanei</named-content></italic> Kimoto, n. sp. / PARATYPE (blue label)”; 1♀ (KMNH): “(Taiwan) Meifeng Nantou Hsien / 18.v.1965 B.C. Chang / <italic><named-content content-type="taxon-name">Dercetina nakanei</named-content></italic> Kimoto, n. sp. / PARATYPE (blue label)”.</p><pmc-comment>PageBreak</pmc-comment>
</sec><sec sec-type="treatment-Material examined"><title>Material examined.</title><p><bold>TAIWAN</bold>: 1♀, Hsinchu, Kuanwu, 6.IV.2010, leg. L.-H. Sun (TARI); 5♂♂, 8♀♀, same locality, 30.IV.–1.V.2010, leg. M.-H. Tsou (TARI); 1♂, 1♀, same locality, 30.IV.2010, leg. C.-F. Lee (TARI); 1♀, same locality, <pmc-comment>PageBreak</pmc-comment>7.VI.2010, leg. L.-H. Sun (TARI); 5♂♂, Nantou, Chingching, 4.IV.2010, leg. Y.-T. Wang (TARI); 6♂♂, 7♀♀, Nantou, Meifeng, 15.IX.2009, leg. H. Lee (TARI); 1♂, same locality, 20.IV.2011, leg. C.-F. Lee (TARI); 2♀♀, Nantou, Sungkang, <pmc-comment>PageBreak</pmc-comment>4.IV.2010, leg. Y.-T. Wang (TARI); 1♂, 1♀, Nantou, Tsuifeng, 5.IV.2010, leg. Y.-T. Wang (TARI); 1♂, Taichung, Anmashan (= Tashueshan), 15.X.2009, leg. J.-C. Chen (TARI); 1♀, same locality 19.X.2011, leg. C.-F. Lee (TARI); 1♀, same locality, 24.IV.2012, leg. C.-F. Lee; 1♂, Taichung, Henglingshan, 5.VI.2012, J.-C. Chen (TARI);</p></sec><sec sec-type="treatment-Diagnosis"><title>Diagnosis.</title><p><italic><named-content content-type="taxon-name">Arthrotus nakanei</named-content></italic> is easily recognized by its color pattern.</p></sec><sec sec-type="treatment-Redescription"><title>Redescription.</title><p>Color (<xref ref-type="fig" rid="F11">Figs 67–68</xref>) black, abdomen and apical 2/3 of elytra reddish brown. Head smooth and impunctate. Pronotum transverse, 1.9–2.0 times wider than long, disc with scattered prominent punctures, and a pair of round fovea at sides; lateral and posterior margins slightly rounded, anterior margin slightly concave. Elytra more or less widened posteriorly, apex convergently rounded, 1.6–1.7 times longer than wide, disc with punctures in part arranged in longitudinal rows, epipleurae smooth and impunctate.</p><p><bold>Male.</bold> Length 5.2–5.7 mm, width 2.4–2.7 mm. Antenna filiform (<xref ref-type="fig" rid="F14">Fig. 83</xref>), antennomere II a little smaller than III, ratio of length of antennomeres III to XI about 1.0: 5.7: 5.3: 5.6: 5.6: 5.1: 5.1: 5.1: 5.6; ratio of length to width of antennomeres III to XI about 1.2: 5.1: 4.8: 5.3: 5.6: 5.4: 5.7: 5.7: 5.6. Penis (<xref ref-type="fig" rid="F14">Fig. 85</xref>) extremely slender, about 8.9 times longer than wide, lateral margin medially narrowed, apex narrowly rounded, with a short process at top; tectum membranous, with scattered short setae; weakly curved in lateral view, apex recurved and hooklike (<xref ref-type="fig" rid="F14">Fig. 86</xref>); endophallic sclerites elongate, about 0.5 times as long as penis; apically narrowed, apex ventrally covered with a small curved sclerite; with a cluster of long setae from middle to apex; straight in lateral view.</p><fig id="F14" orientation="portrait" position="float"><label>Figures 83–89.</label><caption><p><italic><named-content content-type="taxon-name">Arthrotus nakanei</named-content></italic>. <bold>83</bold> Antenna, male <bold>84</bold> Antenna, female <bold>85</bold> Aedeagus, dorsal view <bold>86</bold> Aedeagus, lateral view <bold>87</bold> Sternite VIII <bold>88</bold> Gonocoxae <bold>89</bold> Spermatheca.</p></caption><graphic xlink:href="ZooKeys-323-001-g014"></graphic></fig><p><bold>Female.</bold> Length 6.0–6.2 mm, width 2.9–3.2 mm. Antenna filiform (<xref ref-type="fig" rid="F14">Fig. 84</xref>), shorter than male, ratio of length of antennomeres III to XI about 1.0: 2.5: 2.4: 2.4: 2.4: 2.1: 2.1: 2.1: 2.2; ratio of length to width of antennomeres III to XI about 2.3: 5.9: 5.7: 5.7: 5.7: 5.3: 5.2: 5.2: 5.5. Sternite VIII (<xref ref-type="fig" rid="F14">Fig. 87</xref>) weakly sclerotized subapically, apex truncate, with dense long setae along apical margin, spiculum extremely long. Spermathecal receptaculum (<xref ref-type="fig" rid="F14">Fig. 89</xref>) strongly swollen; pump narrow and strongly curved, apically narrowed; spermathecal duct short, shallowly projecting into receptaculum. Gonocoxae (<xref ref-type="fig" rid="F14">Fig. 88</xref>) very close at middle, about 5.0 times longer than wide, slightly curved inwards near apex, apex rounded, with one or two short setae at apical 1/3, two subapically, nine setae at apex.</p></sec><sec sec-type="treatment-Distribution"><title>Distribution.</title><p>Taiwan.</p></sec></sec></sec></sec><sec sec-type="Discussion"><title>Discussion</title><p>Endophallic sclerites is useful for species identities but not for generic diagnosis for <italic><named-content content-type="taxon-name">Dercetina</named-content></italic> and <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic>. The extreme narrow connection between gonocoxae seems to characterize the genus <italic><named-content content-type="taxon-name">Arthrotus</named-content></italic> based on the studies on two member of the genus, although this character should be evaluated after more species are studied.</p><pmc-comment>PageBreak</pmc-comment>
</sec><sec sec-type="supplementary-material"><title>Supplementary Material</title><supplementary-material id="zookeys.323.5195-treatment1" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">azumai</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment1.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment2" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">barclayi</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment2.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment3" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">chinensis</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment3.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment4" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">itoi</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment4.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment5" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">shirozui</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment5.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment6" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">taiwana</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment6.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment7" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Dercetina</named-content><named-content content-type="species">unifasciata</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment7.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment8" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Arthrotus</named-content><named-content content-type="species">flavocincta</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment8.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material><supplementary-material id="zookeys.323.5195-treatment9" content-type="local-data"><caption><title>XML Treatment for
<named-content content-type="genus">Arthrotus</named-content><named-content content-type="species">nakanei</named-content></title></caption><media xlink:href="zookeys.323.5195-treatment9.xml" mimetype="text" mime-subtype="xml"></media></supplementary-material></sec></body><back><ack><title>Acknowledgements</title><p>We would like to thank all curators listed above for giving us the opportunity to study the material from their collections. We thank the Taiwan Chrysomelid Research Team for assistance in collecting material, including S.-F. Yu, M.-H. Tsou, H.-J. Chen, J.-C. Chen, and H. Lee; and C. Staines for critically reading manuscript. We especially thank T.-H. Lee for photos of dorsal and ventral habitus of each species</p><p>This study was also supported by the National Science Council of Taiwan NSC 100-2313-B-055-001 and the Research plan No. MSM6215648905 ‘Biological and technological aspects of sustainability of controlled ecosystems and their adaptability to climate change’, financed by the Ministry of Education, Youth and Sports of the Czech Republic.</p></ack><ref-list><title>References</title><ref id="B1"><mixed-citation publication-type="journal"><person-group><name><surname>Allard</surname><given-names>E</given-names></name></person-group> (<year>1889</year>) <article-title>Nouvelle note sur les phytophages à la suite d’un examen des galérucides appartenant au Musée royal de Belgique.</article-title><source>Bulletin ou Comptes-Rendus des Séances de la Société Entomologique de Belgique</source><volume>1889</volume>: <fpage>102</fpage>-<lpage>117</lpage></mixed-citation></ref><ref id="B2"><mixed-citation publication-type="journal"><person-group><name><surname>Baly</surname><given-names>JS</given-names></name></person-group> (<year>1879</year>) <article-title>List of the phytophagous Coleoptera collected in Assam by A. 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