535 lines
53 KiB
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535 lines
53 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/dez.70.96994" ID-Pensoft-Pub="1860-1324-1-143" ID-Pensoft-UUID="C21F222C29BF5095A8D4A296DFDDD0E0" ID-ZooBank="12B52C903F0940939DDF2A89DB92255C" ModsDocID="1860-1324-70-1-143" checkinTime="1679703447475" checkinUser="pensoft" docAuthor="Minoshima, Yusuke N., Kamite, Yuuki & Fikacek, Martin" docDate="2023" docId="C9C469C12DE05F57BE0547B479F753D8" docLanguage="en" docName="DeutEntomolZeit 70(1): 143-157" docOrigin="Deutsche Entomologische Zeitschrift 70 (1)" docPubDate="2023-03-24" docSource="http://dx.doi.org/10.3897/dez.70.96994" docTitle="Anacaena okinawana Minoshima & Kamite & Fikáček 2023, sp. nov." docType="treatment" docUuid="28410C22-C8A5-4EDD-A41A-5DEC6A4FE8E7" docUuidSource="ZooBank" docVersion="1" id="C21F222C29BF5095A8D4A296DFDDD0E0" lastPageNumber="143" masterDocId="C21F222C29BF5095A8D4A296DFDDD0E0" masterDocTitle="The genus Anacaena Thomson from the Ryukyu Archipelago of Japan (Coleoptera, Hydrophilidae)" masterLastPageNumber="157" masterPageNumber="143" pageNumber="143" updateTime="1679703447475" updateUser="pensoft">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>The genus Anacaena Thomson from the Ryukyu Archipelago of Japan (Coleoptera, Hydrophilidae)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Minoshima, Yusuke N.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-2575-4082</mods:nameIdentifier>
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<mods:affiliation>Natural History Division, Kitakyushu Museum of Natural History and Human History, 2 - 4 - 1 Higashida, Yahatahigashi-ku, Kitakyushu-shi, Fukuoka 805 - 0071, Japan</mods:affiliation>
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<mods:nameIdentifier type="email">minoshima@kmnh.jp</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Kamite, Yuuki</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-5187-8484</mods:nameIdentifier>
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<mods:affiliation>Nagoya City Public Health Research Institute, 4 - 207 Sakurazaka, Moriyama-ku, Nagoya-shi, Aichi 463 - 8585, Japan</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Fikacek, Martin</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-2078-6798</mods:nameIdentifier>
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<mods:affiliation>Department of Biological Sciences, National Sun Yat-sen University, No. 70 Lien-hai Rd., Kaohsiung City 80424, Taiwan & National Museum, Department of Entomology, Cirkusova 1740, CZ- 19300 Prague 9, Czech Republic</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Deutsche Entomologische Zeitschrift</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2023</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2023-03-24</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>70</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>143</mods:start>
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<mods:end>157</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/dez.70.96994</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/dez.70.96994</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1860-1324-1-143</mods:identifier>
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<mods:identifier type="ZooBank">12B52C903F0940939DDF2A89DB92255C</mods:identifier>
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<mods:identifier type="Pensoft-UUID">C21F222C29BF5095A8D4A296DFDDD0E0</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:zoobank.org:act:28410C22-C8A5-4EDD-A41A-5DEC6A4FE8E7" httpUri="http://treatment.plazi.org/id/C9C469C12DE05F57BE0547B479F753D8" lastPageNumber="143" pageId="0" pageNumber="143">
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<subSubSection pageId="0" pageNumber="143" type="nomenclature">
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<paragraph pageId="0" pageNumber="143">
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<taxonomicName LSID="https://zoobank.org/28410C22-C8A5-4EDD-A41A-5DEC6A4FE8E7" authority="Minoshima & Kamite & Fikáček, 2023" authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena okinawana" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="okinawana" status="sp. nov.">Anacaena okinawana</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="143">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="description">
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<paragraph pageId="0" pageNumber="143">
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">Figs 2</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-E. Maxillary palpus; A. Anacaena kumejimana, paratype; B-D. A. okinawana, paratypes; B. from Okinawa-jima I., C, D. from Aka-jima I. (Kerama Is.); E. A. torikaii, holotype; F-I. Mentum; F. A. kumejimana, paratype; G, H. A. okinawana, paratypes; G. from Okinawa-jima I.; H. from Aka-jima I. (Kerama Is.); I. A. torikaii, holotype; J-M. Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base; J. A. kumejimana, paratype; K, L. A. okinawana, paratypes; K. from Okinawa-jima I.; L. from Aka-jima I. (Kerama I.); M. A. torikaii, holotype." figureDoi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143">, 3B-D, G, H, K, L</figureCitation>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">, 4C-F, G</figureCitation>
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">, 5A-G</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Collecting localities of the species of Anacaena on the Ryukyu Archipelago. A-B. Anacaena kumejimana; A. Daruma-yama, Kumejima I., 21 May 2007; B. Nakandakari, Kumejima I., 20 May 2007; C-E. A. okinawana; C. tributary of Benoki Dam, Kunigami-son, Okinawa-jima I., 26 Jul. 2015; D. Aka, Aka-jima I., 15 Mar. 2019; E. Geruma, Geruma-jima I., 15 Mar. 2019, after Kamite et al. (2019); F. A. torikaii; F, Kinsakubaru, Amami-oshima I., 17 Jul. 2006." figureDoi="10.3897/dez.70.96994.figure6" httpUri="https://binary.pensoft.net/fig/829448" pageId="0" pageNumber="143">, 6C-E</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="reference_group">
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<paragraph pageId="0" pageNumber="143">
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<taxonomicName authority="Minoshima & Kamite & Fikáček, 2023" authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="genus" status="sp. nov.">Anacaena</taxonomicName>
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sp.:
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<bibRefCitation author="Kamite, Y" journalOrPublisher="Sayabane New Series" pageId="0" pageNumber="143" pagination="26 - 31" refId="B17" refString="Kamite, Y, Aoyagi, M, 2018. Records on aquatic Coleoptera of Zamami-jima, Okinawa Prefecture, Japan. Sayabane New Series 32: 26 - 31" title="Records on aquatic Coleoptera of Zamami-jima, Okinawa Prefecture, Japan." volume="32" year="2018">Kamite and Aoyagi 2018</bibRefCitation>
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: 26.
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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<taxonomicName authority="Minoshima & Kamite & Fikáček, 2023" authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Paracymus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paracymus orientalis" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="orientalis" status="sp. nov.">Paracymus orientalis</taxonomicName>
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:
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<bibRefCitation author="Kamite, Y" journalOrPublisher="New Series" pageId="0" pageNumber="143" refId="B20" refString="Kamite, Y, Aoyagi, M, Kamite, N, 2019. Records on aquatic Coleoptera of Aka-jima and Geruma-jima, Okinawa Prefecture, Japan Sayabane New Series, 36 pp. [In Japanese]" title="Records on aquatic Coleoptera of Aka-jima and Geruma-jima, Okinawa Prefecture, Japan Sayabane New Series, 36 pp. [In Japanese]" year="2019">Kamite et al. 2019</bibRefCitation>
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: 23 [misidentification, see
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<bibRefCitation author="Kamite, Y" journalOrPublisher="Linnean Society of London" pageId="0" pageNumber="143" refId="B16" refString="Kamite, Y, 2020. [Corrigendum] Misidentification in Kamite et al. (2019) in Sayabane New Series, No. 36]. Sayabane New Series 38: 42. [In Japanese]" title="[Corrigendum] Misidentification in Kamite et al. (2019) in Sayabane New Series, No. 36]. Sayabane New Series 38: 42. [In Japanese]" year="2020">Kamite 2020</bibRefCitation>
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: 42].
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="type locality">
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<paragraph pageId="0" pageNumber="143">Type locality.</paragraph>
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<paragraph pageId="0" pageNumber="143">Japan, Okinawa-ken (Prefecture), Okinawa-jima I., Kunigami-son, Benoki, tributary of Benoki Dam.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="type series">
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<paragraph pageId="0" pageNumber="143">Type series.</paragraph>
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<paragraph pageId="0" pageNumber="143">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="143">Holotype</emphasis>
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: Japan • male, "JAPAN: Okinawa Pref.," / "Okinawa-jima I.," / "Kunigami-son, Benoki," / "tributary of Benoki Dam;" / "26.VII.2015; Y. Kamite leg." //
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<normalizedToken originalValue="“spec.#”">"spec.#"</normalizedToken>
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/
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<normalizedToken originalValue="“20-47”">"20-47"</normalizedToken>
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//
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<normalizedToken originalValue="“HOLOTYPE”">"HOLOTYPE"</normalizedToken>
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/
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<normalizedToken originalValue="“ANACAENA”">"ANACAENA"</normalizedToken>
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/
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<normalizedToken originalValue="“okinawana”">"okinawana"</normalizedToken>
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/ "des. YN Minoshima 2021"; KMNH.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="143">Paratypes</emphasis>
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: Japan -
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<emphasis bold="true" pageId="0" pageNumber="143">Okinawa Pref., Okinawa-jima I.</emphasis>
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• 1 male, 4 females, 3 exs; same data as holotype; KMNH, YKC • 2 males, 3 females, 1 ex.; Benoki, Kunigami-son; 16 Oct. 2020; M. Moriguchi leg.; KMNH • 1 male, 1 female; Nishime-dake, Uka, Kunigami-son; 3 Oct. 2020; M.
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<normalizedToken originalValue="Katô">Kato</normalizedToken>
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leg.; KMNH • 2 exs; same locality; 27 Oct. 2020; J. Nakajima leg.; JNC. -
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<emphasis bold="true" pageId="0" pageNumber="143">Aka-jima I. (Kerama Is.)</emphasis>
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• 3 males, 1 female, 2 exs; Aka; 15 Mar. 2019; Y. Kamite leg.; small stream; KMNH, YKC • 2 males; Aka; 16 Mar. 2019; Y. Kamite leg.; small stream; KMNH, YKC • 1 female; Aka; 17 Mar. 2019; Y. & N. Kamite leg.; marsh, slow water flow; YKC. -
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<emphasis bold="true" pageId="0" pageNumber="143">Geruma-jima I. (Kerama Is.)</emphasis>
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• 1 male; Geruma; 15 Mar. 2019; Y. Kamite leg.; YKC. -
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<emphasis bold="true" pageId="0" pageNumber="143">Zamami-jima I. (Kerama Is.)</emphasis>
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• 1 male, 2 exs; upstream of Zamami Dam; 16 Mar. 2018; Y. Kamite leg.; KMNH, YKC • 1 ex.; Ama; 17 Mar. 2018; Y. Kamite leg.; KMNH • 2 males, 1 female, 1 ex.; Zamami; 17 Mar. 2018; Y. Kamite leg.; KMNH, YKC • 1 male; same locality; 19 Mar. 2018.; YKC.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="diagnosis">
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<paragraph pageId="0" pageNumber="143">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="143">Pronotum and elytra variable in colour, black to light yellowish brown. Pronotum with yellowish lateral margin. Antenna with eight antennomeres; antennomere 3 narrow. Maxillary palpus uniformly yellowish or with infuscate apex. Pronotum with very fine and sparsely distributed ground punctation consisting of uniformly-sized punctures. Metafemoral pubescence with horizontal hairline. Median lobe wide, elongate triangular with narrow basal apophyses. Gonopore large, situated at apex. Parameres slightly attenuated apically, rounded apically with weak inner angle; lateral margin of paramere weakly sinuate in dorsal view. Phallobase longer to slightly longer than parameres, almost parallel-sided in basal half, then narrowing to narrow and short manubrium.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="differential diagnosis">
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<paragraph pageId="0" pageNumber="143">Differential diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="143">
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The species is most similar to
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<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
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</taxonomicName>
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. Dorsal colouration and the morphology of the aedeagus separate this species from
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<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
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<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
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</taxonomicName>
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and
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<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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Light brown individuals (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">2A</figureCitation>
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) are not known in
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<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
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<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
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</taxonomicName>
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and
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<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
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</taxonomicName>
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so far. In dark coloured specimens, yellowish margin on pronotum is narrower in
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<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
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</taxonomicName>
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than in
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<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
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<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
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</taxonomicName>
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(Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-E. Maxillary palpus; A. Anacaena kumejimana, paratype; B-D. A. okinawana, paratypes; B. from Okinawa-jima I., C, D. from Aka-jima I. (Kerama Is.); E. A. torikaii, holotype; F-I. Mentum; F. A. kumejimana, paratype; G, H. A. okinawana, paratypes; G. from Okinawa-jima I.; H. from Aka-jima I. (Kerama Is.); I. A. torikaii, holotype; J-M. Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base; J. A. kumejimana, paratype; K, L. A. okinawana, paratypes; K. from Okinawa-jima I.; L. from Aka-jima I. (Kerama I.); M. A. torikaii, holotype." figureDoi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143">3F</figureCitation>
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). The median lobe (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4C-F</figureCitation>
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) is wider in
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<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
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</taxonomicName>
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than in
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<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
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<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
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</taxonomicName>
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(Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4B</figureCitation>
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). Lateral face of the paramere is weakly convex at base in
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<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
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</taxonomicName>
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, the convexity ends more apically (at basal third) in
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<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
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<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
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</taxonomicName>
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(Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4A</figureCitation>
|
|
). This results in a different lateral sinuation of the lateral margin of the paramere in dorsal view. The median lobe is slightly longer in
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
than in
|
|
<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
|
|
</taxonomicName>
|
|
, in which the apex of the median lobe does not reach close to the parameral apices (Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4A</figureCitation>
|
|
).
|
|
</paragraph>
|
|
<caption doi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143" start="Figure 2" startId="F2">
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" pageId="0" pageNumber="143">Figure 2.</emphasis>
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena okinawana" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena okinawana</emphasis>
|
|
</taxonomicName>
|
|
, holotype (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C, D</emphasis>
|
|
) and paratypes (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A, B, E-H</emphasis>
|
|
).
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-D.</emphasis>
|
|
From Okinawa-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">E-H.</emphasis>
|
|
From Kerama Is. (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">E, F.</emphasis>
|
|
Aka-jima I.,
|
|
<emphasis bold="true" pageId="0" pageNumber="143">G, H.</emphasis>
|
|
Zamami-jima I.).
|
|
</paragraph>
|
|
</caption>
|
|
<caption doi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143" start="Figure 3" startId="F3">
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" pageId="0" pageNumber="143">Figure 3.</emphasis>
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-E.</emphasis>
|
|
Maxillary palpus;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A.</emphasis>
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena kumejimana" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena kumejimana</emphasis>
|
|
</taxonomicName>
|
|
, paratype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">B-D.</emphasis>
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
, paratypes;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">B.</emphasis>
|
|
from Okinawa-jima I.,
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C, D.</emphasis>
|
|
from Aka-jima I. (Kerama Is.);
|
|
<emphasis bold="true" pageId="0" pageNumber="143">E.</emphasis>
|
|
<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
|
|
</taxonomicName>
|
|
, holotype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">F-I.</emphasis>
|
|
Mentum;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">F.</emphasis>
|
|
<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
|
|
</taxonomicName>
|
|
, paratype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">G, H.</emphasis>
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
, paratypes;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">G.</emphasis>
|
|
from Okinawa-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">H.</emphasis>
|
|
from Aka-jima I. (Kerama Is.);
|
|
<emphasis bold="true" pageId="0" pageNumber="143">I.</emphasis>
|
|
<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
|
|
</taxonomicName>
|
|
, holotype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">J-M.</emphasis>
|
|
Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">J.</emphasis>
|
|
<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
|
|
</taxonomicName>
|
|
, paratype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">K, L.</emphasis>
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
, paratypes;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">K.</emphasis>
|
|
from Okinawa-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">L.</emphasis>
|
|
from Aka-jima I. (Kerama I.);
|
|
<emphasis bold="true" pageId="0" pageNumber="143">M.</emphasis>
|
|
<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
|
|
</taxonomicName>
|
|
, holotype.
|
|
</paragraph>
|
|
</caption>
|
|
<caption doi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143" start="Figure 4" startId="F4">
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" pageId="0" pageNumber="143">Figure 4.</emphasis>
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-F.</emphasis>
|
|
Aedeagus (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-F</emphasis>
|
|
) and abdominal segment 9 (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">G</emphasis>
|
|
), dorsal view.
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A.</emphasis>
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena kumejimana" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena kumejimana</emphasis>
|
|
</taxonomicName>
|
|
, holotype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">B.</emphasis>
|
|
<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
|
|
</taxonomicName>
|
|
, holotype;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C-G.</emphasis>
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
, holotype (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C</emphasis>
|
|
) and paratypes (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">D-G</emphasis>
|
|
);
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C, D, G.</emphasis>
|
|
from Okinawa-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">E, F.</emphasis>
|
|
from Kerama Is. (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">E.</emphasis>
|
|
Aka-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">F.</emphasis>
|
|
Zamami-jima I.).
|
|
</paragraph>
|
|
</caption>
|
|
<caption doi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143" start="Figure 5" startId="F5">
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" pageId="0" pageNumber="143">Figure 5.</emphasis>
|
|
Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena</emphasis>
|
|
</taxonomicName>
|
|
species.
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-G.</emphasis>
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena okinawana" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena okinawana</emphasis>
|
|
</taxonomicName>
|
|
;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-C.</emphasis>
|
|
from Okinawa-jima I.,
|
|
<emphasis bold="true" pageId="0" pageNumber="143">D-G.</emphasis>
|
|
from Kerama Is. (
|
|
<emphasis bold="true" pageId="0" pageNumber="143">D, E.</emphasis>
|
|
Aka-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">F.</emphasis>
|
|
Geruma-jima I.;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">G.</emphasis>
|
|
Zamami-jima I.);
|
|
<emphasis bold="true" pageId="0" pageNumber="143">H, I.</emphasis>
|
|
<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
|
|
</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
</caption>
|
|
<caption doi="10.3897/dez.70.96994.figure6" httpUri="https://binary.pensoft.net/fig/829448" pageId="0" pageNumber="143" start="Figure 6" startId="F6">
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" pageId="0" pageNumber="143">Figure 6.</emphasis>
|
|
Collecting localities of the species of
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena</emphasis>
|
|
</taxonomicName>
|
|
on the Ryukyu Archipelago.
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A-B.</emphasis>
|
|
<taxonomicName authorityName="Minoshima & Kamite & Fikáček" authorityYear="2023" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena kumejimana" order="Coleoptera" pageId="0" pageNumber="143" phylum="Arthropoda" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Anacaena kumejimana</emphasis>
|
|
</taxonomicName>
|
|
;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">A.</emphasis>
|
|
Daruma-yama, Kumejima I., 21 May 2007;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">B.</emphasis>
|
|
Nakandakari, Kumejima I., 20 May 2007;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C-E.</emphasis>
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">C.</emphasis>
|
|
tributary of Benoki Dam, Kunigami-son, Okinawa-jima I., 26 Jul. 2015;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">D.</emphasis>
|
|
Aka, Aka-jima I., 15 Mar. 2019;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">E.</emphasis>
|
|
Geruma, Geruma-jima I., 15 Mar. 2019, after
|
|
<bibRefCitation author="Kamite, Y" journalOrPublisher="New Series" pageId="0" pageNumber="143" refId="B20" refString="Kamite, Y, Aoyagi, M, Kamite, N, 2019. Records on aquatic Coleoptera of Aka-jima and Geruma-jima, Okinawa Prefecture, Japan Sayabane New Series, 36 pp. [In Japanese]" title="Records on aquatic Coleoptera of Aka-jima and Geruma-jima, Okinawa Prefecture, Japan Sayabane New Series, 36 pp. [In Japanese]" year="2019">Kamite et al. (2019)</bibRefCitation>
|
|
;
|
|
<emphasis bold="true" pageId="0" pageNumber="143">F.</emphasis>
|
|
<taxonomicName lsidName="A. torikaii" pageId="0" pageNumber="143" rank="species" species="torikaii">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. torikaii</emphasis>
|
|
</taxonomicName>
|
|
; F, Kinsakubaru,
|
|
<normalizedToken originalValue="Amami-ôshima">Amami-oshima</normalizedToken>
|
|
I., 17 Jul. 2006.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph pageId="0" pageNumber="143">
|
|
The pale specimens of
|
|
<taxonomicName lsidName="A. okinawana" pageId="0" pageNumber="143" rank="species" species="okinawana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. okinawana</emphasis>
|
|
</taxonomicName>
|
|
resemble
|
|
<taxonomicName lsidName="A. maculata" pageId="0" pageNumber="143" rank="species" species="maculata">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. maculata</emphasis>
|
|
</taxonomicName>
|
|
Pu, 1964 distributed in southeast Asia and China:
|
|
<taxonomicName lsidName="A. maculata" pageId="0" pageNumber="143" rank="species" species="maculata">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. maculata</emphasis>
|
|
</taxonomicName>
|
|
has distinctly speckled elytra (with very small blackish spots) and a different morphology of the aedeagus (fig. 12 in
|
|
<bibRefCitation author="Komarek, A" journalOrPublisher="Koleopterologische Rundschau" pageId="0" pageNumber="143" pagination="235 - 284" refId="B29" refString="Komarek, A, 2012. Taxonomic revision of Anacaena Thomson, 1859 IX. The People's Republic of China (Coleoptera: Hydrophilidae). Koleopterologische Rundschau 82: 235 - 284" title="Taxonomic revision of Anacaena Thomson, 1859 IX. The People's Republic of China (Coleoptera: Hydrophilidae)." volume="82" year="2012">Komarek 2012</bibRefCitation>
|
|
). For other similar species in Asia, see Differential diagnosis of
|
|
<taxonomicName lsidName="A. kumejimana" pageId="0" pageNumber="143" rank="species" species="kumejimana">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">A. kumejimana</emphasis>
|
|
</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="143" type="description">
|
|
<paragraph pageId="0" pageNumber="143">Description.</paragraph>
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="143">Body</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">2</figureCitation>
|
|
) 1.9-2.6 mm in length, oval, slightly attenuated posteriad (Fig.
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">2</figureCitation>
|
|
).
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="143">Colour</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">2</figureCitation>
|
|
). Head black, lateral part of clypeus yellowish. Pronotum and elytra light yellowish brown to black; margins of pronotum yellowish in dark-coloured specimens. Ventral face dark brown, legs slightly paler. Antenna yellow with infuscate antennal club. Maxillary and labial palpi uniformly yellowish or with infuscate apex.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="143">
|
|
<emphasis bold="true" pageId="0" pageNumber="143">
|
|
<emphasis italics="true" pageId="0" pageNumber="143">Head</emphasis>
|
|
.
|
|
</emphasis>
|
|
Labrum with a fringe of long erect setae. Clypeus and frons bearing densely arranged fine setae but very often setae missing (possibly already broken when collected or during preparation). Ground punctures of clypeus and frons fine, densely arranged; interspace between punctures ca. 2-4 times the width of a puncture. Frontoclypeal sulcus indistinct. Systematic punctures on clypeus and frons slightly larger than ground punctures, each bearing a fine seta. Systematic punctures of clypeus sparsely distributed, especially on anterior part. Systematic punctures of frons on anterolateral and posterolateral parts close to compound eye and frontoclypeal sulcus.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="143">
|
|
Antenna with eight antennomeres. Scape stout, moderately long. Antennomere 2 stout, somewhat conical, ca. as long as antennomeres 3 and 4 combined; antennomere 3 narrow; antennomere 4 wider than 3; antennal club longer than antennomeres 2-5 combined. Maxillary palpus short (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-E. Maxillary palpus; A. Anacaena kumejimana, paratype; B-D. A. okinawana, paratypes; B. from Okinawa-jima I., C, D. from Aka-jima I. (Kerama Is.); E. A. torikaii, holotype; F-I. Mentum; F. A. kumejimana, paratype; G, H. A. okinawana, paratypes; G. from Okinawa-jima I.; H. from Aka-jima I. (Kerama Is.); I. A. torikaii, holotype; J-M. Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base; J. A. kumejimana, paratype; K, L. A. okinawana, paratypes; K. from Okinawa-jima I.; L. from Aka-jima I. (Kerama I.); M. A. torikaii, holotype." figureDoi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143">3B-D</figureCitation>
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); palpomere 2 stout, longer than palpomere 3; palpomere 3 short, about half or slightly shorter than palpomere 4; palpomere 4 longest, shorter than palpomeres 2 and 3 combined. Labial palpus short, shorter than width of mentum. Mentum (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-E. Maxillary palpus; A. Anacaena kumejimana, paratype; B-D. A. okinawana, paratypes; B. from Okinawa-jima I., C, D. from Aka-jima I. (Kerama Is.); E. A. torikaii, holotype; F-I. Mentum; F. A. kumejimana, paratype; G, H. A. okinawana, paratypes; G. from Okinawa-jima I.; H. from Aka-jima I. (Kerama Is.); I. A. torikaii, holotype; J-M. Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base; J. A. kumejimana, paratype; K, L. A. okinawana, paratypes; K. from Okinawa-jima I.; L. from Aka-jima I. (Kerama I.); M. A. torikaii, holotype." figureDoi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143">3G, H</figureCitation>
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) ca. 1.7 times wider than long, subtrapezoidal, rounded anteriorly with median depression; lateral margin with lateral angle but generally indistinct (this character was observed without dissection of head appendages, thus not very accurate). Ground punctation on mentum fine, rather sparsely distributed. Lateral margin of mentum with fringe of fine setae.
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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<emphasis bold="true" pageId="0" pageNumber="143">
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<emphasis italics="true" pageId="0" pageNumber="143">Thorax</emphasis>
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.
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</emphasis>
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Pronotum with very fine and sparsely distributed ground punctation consisting of uniformly-sized punctures. Systematic punctures on pronotum arranged as irregular transverse row along anterolateral and posterolateral areas. Prosternum weakly and evenly convex.
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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Ground punctation on elytra coarser than that of head and pronotum; punctures rather densely distributed; interspaces between punctures ca. 1-3 times the width of a puncture. Mesoventrite with median process pointed apically; process as subtrigonal pyramid with posterior transverse and anterior median longitudinal carinas. Metaventrite with inverted triangular portion medially elevated, with small, oval, glabrous area. Metafemora (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-E. Maxillary palpus; A. Anacaena kumejimana, paratype; B-D. A. okinawana, paratypes; B. from Okinawa-jima I., C, D. from Aka-jima I. (Kerama Is.); E. A. torikaii, holotype; F-I. Mentum; F. A. kumejimana, paratype; G, H. A. okinawana, paratypes; G. from Okinawa-jima I.; H. from Aka-jima I. (Kerama Is.); I. A. torikaii, holotype; J-M. Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base; J. A. kumejimana, paratype; K, L. A. okinawana, paratypes; K. from Okinawa-jima I.; L. from Aka-jima I. (Kerama I.); M. A. torikaii, holotype." figureDoi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143">3K, L</figureCitation>
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) pubescent along basal area and anterior half excluding apical area, with horizontal hairline; hairline indistinct along basal part.
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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<emphasis bold="true" pageId="0" pageNumber="143">
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<emphasis italics="true" pageId="0" pageNumber="143">Abdomen</emphasis>
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.
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</emphasis>
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Aedeagus (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4C-F</figureCitation>
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; see also Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">5A-G</figureCitation>
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): Median lobe wide, elongate triangular with narrow basal apophyses, ca. 2.5 times longer than its greatest width, dully pointed apically, longer than parameres. Basal apophysis weakly incurved in proximal part. Gonopore large, situated at apex. Parameres rather variable, slightly attenuated apically, rounded apically with weak inner angle; apical third of dorsal face of paramere membranous or very weakly sclerotised. In dorsal view, lateral margin of paramere weakly convex to slightly sinuate in specimens from Okinawa-jima I. (Figs
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4C, D</figureCitation>
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;
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">5A-C</figureCitation>
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), slightly sinuate from Kerama Is. (Figs
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4E, F</figureCitation>
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,
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">5D-G</figureCitation>
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). Lateral face of parameres convex basally; dorsal inner margin of parameres sinuated. Phallobase longer to slightly longer than paramere, almost parallel-sided in basal half, then narrowing to narrow and short manubrium; borderline between membrane and sclerite (unpigmented and pigmented area) of ventral face of phallobase generally indistinct, incision of anterior margin moderately deep.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="distribution">
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<paragraph pageId="0" pageNumber="143">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="143">Okinawa Is.: Okinawa-jima I. and Kerama Is. (Aka-jima I., Geruma-jima I., Zamami-jima I.).</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="habitat">
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<paragraph pageId="0" pageNumber="143">Habitat.</paragraph>
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<paragraph pageId="0" pageNumber="143">
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Aquatic species. Examined specimens were collected from a small stream (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Collecting localities of the species of Anacaena on the Ryukyu Archipelago. A-B. Anacaena kumejimana; A. Daruma-yama, Kumejima I., 21 May 2007; B. Nakandakari, Kumejima I., 20 May 2007; C-E. A. okinawana; C. tributary of Benoki Dam, Kunigami-son, Okinawa-jima I., 26 Jul. 2015; D. Aka, Aka-jima I., 15 Mar. 2019; E. Geruma, Geruma-jima I., 15 Mar. 2019, after Kamite et al. (2019); F. A. torikaii; F, Kinsakubaru, Amami-oshima I., 17 Jul. 2006." figureDoi="10.3897/dez.70.96994.figure6" httpUri="https://binary.pensoft.net/fig/829448" pageId="0" pageNumber="143">6C, D</figureCitation>
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) and from a marsh with a slow water flow. The specimen from Geruma-jima I. was collected from small pool on a concrete drainage (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Collecting localities of the species of Anacaena on the Ryukyu Archipelago. A-B. Anacaena kumejimana; A. Daruma-yama, Kumejima I., 21 May 2007; B. Nakandakari, Kumejima I., 20 May 2007; C-E. A. okinawana; C. tributary of Benoki Dam, Kunigami-son, Okinawa-jima I., 26 Jul. 2015; D. Aka, Aka-jima I., 15 Mar. 2019; E. Geruma, Geruma-jima I., 15 Mar. 2019, after Kamite et al. (2019); F. A. torikaii; F, Kinsakubaru, Amami-oshima I., 17 Jul. 2006." figureDoi="10.3897/dez.70.96994.figure6" httpUri="https://binary.pensoft.net/fig/829448" pageId="0" pageNumber="143">6E</figureCitation>
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) (
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<bibRefCitation author="Kamite, Y" journalOrPublisher="Sayabane New Series" pageId="0" pageNumber="143" pagination="26 - 31" refId="B17" refString="Kamite, Y, Aoyagi, M, 2018. Records on aquatic Coleoptera of Zamami-jima, Okinawa Prefecture, Japan. Sayabane New Series 32: 26 - 31" title="Records on aquatic Coleoptera of Zamami-jima, Okinawa Prefecture, Japan." volume="32" year="2018">Kamite and Aoyagi 2018</bibRefCitation>
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;
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<bibRefCitation author="Kamite, Y" journalOrPublisher="New Series" pageId="0" pageNumber="143" refId="B20" refString="Kamite, Y, Aoyagi, M, Kamite, N, 2019. Records on aquatic Coleoptera of Aka-jima and Geruma-jima, Okinawa Prefecture, Japan Sayabane New Series, 36 pp. [In Japanese]" title="Records on aquatic Coleoptera of Aka-jima and Geruma-jima, Okinawa Prefecture, Japan Sayabane New Series, 36 pp. [In Japanese]" year="2019">Kamite et al. 2019</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="etymology">
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<paragraph pageId="0" pageNumber="143">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="143">Named after the type locality: Okinawa Is., Japan.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="143" type="variation">
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<paragraph pageId="0" pageNumber="143">Variation.</paragraph>
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<paragraph pageId="0" pageNumber="143">
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This species shows morphological variations partly correlated with geography (Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">5</figureCitation>
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), indicating that the populations from Okinawa I. and Kerama Is. may be isolated from each other (see Discussion).
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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Colouration of pronotum and elytra. Dorsal colouration is highly variable, yellowish brown (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">2A</figureCitation>
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) to black (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Anacaena okinawana, holotype (C, D) and paratypes (A, B, E-H). A-D. From Okinawa-jima I.; E-H. From Kerama Is. (E, F. Aka-jima I., G, H. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure2" httpUri="https://binary.pensoft.net/fig/829444" pageId="0" pageNumber="143">2B, C, E-H</figureCitation>
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). We examined two yellow individuals collected from Okinawa-jima I.; although they are females, we consider them conspecific with dark specimens from the same population based on external characters. The range of variation seems to be smaller in specimens from Kerama Is. (mostly black specimens) than in those from Okinawa-jima I. (yellowish to black).
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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Maxillary palpus. Two types of colourations of maxillary palpus were observed (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-E. Maxillary palpus; A. Anacaena kumejimana, paratype; B-D. A. okinawana, paratypes; B. from Okinawa-jima I., C, D. from Aka-jima I. (Kerama Is.); E. A. torikaii, holotype; F-I. Mentum; F. A. kumejimana, paratype; G, H. A. okinawana, paratypes; G. from Okinawa-jima I.; H. from Aka-jima I. (Kerama Is.); I. A. torikaii, holotype; J-M. Hind femora, indicating femoral pubescence but borderline of pubescence often not clear at base; J. A. kumejimana, paratype; K, L. A. okinawana, paratypes; K. from Okinawa-jima I.; L. from Aka-jima I. (Kerama I.); M. A. torikaii, holotype." figureDoi="10.3897/dez.70.96994.figure3" httpUri="https://binary.pensoft.net/fig/829445" pageId="0" pageNumber="143">3B-D</figureCitation>
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): uniformly yellowish palpus and infuscate at apex. This variation seems not to be affected by geography.
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</paragraph>
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<paragraph pageId="0" pageNumber="143">
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Aedeagus of the species vary both within and between islands. Specimens of Okinawa-jima I. (Figs
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4C, D</figureCitation>
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;
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">5A-C</figureCitation>
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) have slightly smaller aedeagus with not or weakly sinuate lateral face of parameres and slightly narrower median lobe in dorsal view. Aedeagus of the specimens from Kerama Islands (specimens from Aka-jima I., Geruma-jima I., and Zamami-jima I. were examined) is slightly larger, with weakly sinuate lateral face of parameres and slightly wider median lobe (Figs
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. A-F. Aedeagus (A-F) and abdominal segment 9 (G), dorsal view. A. Anacaena kumejimana, holotype; B. A. torikaii, holotype; C-G. A. okinawana, holotype (C) and paratypes (D-G); C, D, G. from Okinawa-jima I.; E, F. from Kerama Is. (E. Aka-jima I.; F. Zamami-jima I.)." figureDoi="10.3897/dez.70.96994.figure4" httpUri="https://binary.pensoft.net/fig/829446" pageId="0" pageNumber="143">4E, F</figureCitation>
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,
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Map of the Central Ryukyus (Amami Is. to Okinawa Is.) and aedeagus of Anacaena species. A-G. Anacaena okinawana; A-C. from Okinawa-jima I., D-G. from Kerama Is. (D, E. Aka-jima I.; F. Geruma-jima I.; G. Zamami-jima I.); H, I. A. kumejimana." figureDoi="10.3897/dez.70.96994.figure5" httpUri="https://binary.pensoft.net/fig/829447" pageId="0" pageNumber="143">5D-G</figureCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |