194 lines
19 KiB
XML
194 lines
19 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1159.99218" ID-Pensoft-Pub="1313-2970-1159-87" ID-Pensoft-UUID="ECCECB868071523DB7628E304850BD62" ID-ZooBank="CD97DD120549412F976508D8DE21605B" ModsDocID="1313-2970-1159-87" checkinTime="1682458941538" checkinUser="pensoft" docAuthor="Okada, Ryohei, Jaitrong, Weeyawat & Wewalka, Guenther" docDate="2023" docId="0A7211761CF1522295AA7A35CFED94ED" docLanguage="en" docName="ZooKeys 1159: 87-119" docOrigin="ZooKeys 1159" docPubDate="2023-04-25" docSource="http://dx.doi.org/10.3897/zookeys.1159.99218" docTitle="Microdytes jeenthongi Okada & Wewalka 2023, sp. nov." docType="treatment" docUuid="D3B3AE52-D18B-49E8-AAB7-E0DC2F5E6CD1" docUuidSource="ZooBank" docVersion="1" id="ECCECB868071523DB7628E304850BD62" lastPageNumber="87" masterDocId="ECCECB868071523DB7628E304850BD62" masterDocTitle="A review of Microdytes J. Balfour-Browne, 1946 from Thailand, Laos, and Cambodia with descriptions of five new species and new records (Coleoptera, Dytiscidae)" masterLastPageNumber="119" masterPageNumber="87" pageNumber="87" updateTime="1682458941538" 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>A review of Microdytes J. Balfour-Browne, 1946 from Thailand, Laos, and Cambodia with descriptions of five new species and new records (Coleoptera, Dytiscidae)</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>Okada, Ryohei</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8488-0660</mods:nameIdentifier>
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<mods:affiliation>Thailand Natural History Museum, National Science Museum, Technopolis, Pathum Thani, Thailand & Coleopterological Society of Japan, National Museum of Nature and Science, Tsukuba, Japan</mods:affiliation>
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<mods:nameIdentifier type="email">wasserinsekt@kub.biglobe.ne.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>Jaitrong, Weeyawat</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-1362-0754</mods:nameIdentifier>
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<mods:affiliation>Thailand Natural History Museum, National Science Museum, Technopolis, Pathum Thani, Thailand</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>Wewalka, Guenther</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-2994-8001</mods:nameIdentifier>
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<mods:affiliation>Starkfriedgasse 16 / 1 / 3, A - 1190 Vienna, Austria</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>ZooKeys</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>2023-04-25</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>1159</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>87</mods:start>
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<mods:end>119</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/zookeys.1159.99218</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/zookeys.1159.99218</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-1159-87</mods:identifier>
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<mods:identifier type="ZooBank">CD97DD120549412F976508D8DE21605B</mods:identifier>
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<mods:identifier type="Pensoft-UUID">ECCECB868071523DB7628E304850BD62</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:zoobank.org:act:D3B3AE52-D18B-49E8-AAB7-E0DC2F5E6CD1" httpUri="http://treatment.plazi.org/id/0A7211761CF1522295AA7A35CFED94ED" lastPageNumber="87" pageId="0" pageNumber="87">
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<subSubSection pageId="0" pageNumber="87" type="nomenclature">
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<paragraph pageId="0" pageNumber="87">
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<taxonomicName LSID="https://zoobank.org/D3B3AE52-D18B-49E8-AAB7-E0DC2F5E6CD1" authority="Okada & Wewalka" authorityName="Okada & Wewalka" authorityYear="2023" class="Insecta" family="Dytiscidae" genus="Microdytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microdytes jeenthongi" order="Coleoptera" pageId="0" pageNumber="87" phylum="Arthropoda" rank="species" species="jeenthongi" status="sp. nov.">Microdytes jeenthongi Okada & Wewalka</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="87">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="description">
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<paragraph pageId="0" pageNumber="87">
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<figureCitation captionStart="Figures 2–6" captionStartId="F2" captionText="Figures 2 - 6. Habitus of 2 Microdytes eliasi sp. nov., female, paratype 3 M. jeenthongi sp. nov., male, holotype 4 M. maximiliani sp. nov., male, holotype 5 M. sekaensis sp. nov., male, holotype 6 M. ubonensis sp. nov., male, holotype. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures2-6" httpUri="https://binary.pensoft.net/fig/842221" pageId="0" pageNumber="87">Figs 3</figureCitation>
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<figureCitation captionStart="Figures 7–11" captionStartId="F3" captionText="Figures 7 - 11. Variation of markings of 7 Microdytes eliasi sp. nov. 8 M. jeenthongi sp. nov 9 M. maximiliani sp. nov. 10 M. sekaensis sp. nov. 11 M. ubonensis sp. nov. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures7-11" httpUri="https://binary.pensoft.net/fig/842222" pageId="0" pageNumber="87">, 8</figureCitation>
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<figureCitation captionStart="Figures 12–14" captionStartId="F4" captionText="Figures 12 - 14. 12 Microdytes eliasi sp. nov. 13 M. jeenthongi sp. nov. 14 M. maximiliani sp. nov. A median lobe in ventral aspect B median lobe in lateral aspect C left paramere in lateral aspect D right paramere in medial aspect. Scale bar: 0.25 mm." figureDoi="10.3897/zookeys.1159.99218.figures12-14" httpUri="https://binary.pensoft.net/fig/842223" pageId="0" pageNumber="87">, 13</figureCitation>
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<figureCitation captionStart="Figures 38–40" captionStartId="F8" captionText="Figures 38 - 40. Diagnostic characters of Microdytes species. 38 Impression of lateral side (M. maximiliani sp. nov.) 39 ventral surface A with setae (M. heineri) B with very coarse punctures (M. schoedli) C with coarse punctures (M. maculatus) D with fine punctures (M. balkei) E with very fine punctures (M. jeenthongi sp. nov.) 40 clypeus bead A not bordered (M. ubonensis sp. nov.) B finely bordered (M. schwendingeri) C produced (M. dimorphus)." figureDoi="10.3897/zookeys.1159.99218.figures38-40" httpUri="https://binary.pensoft.net/fig/842228" pageId="0" pageNumber="87">, 39E</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="type locality">
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<paragraph pageId="0" pageNumber="87">Type locality.</paragraph>
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<paragraph pageId="0" pageNumber="87">
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Thailand, Chiang Mai Province, Mae Chaem District, Tha Pha,
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<geoCoordinate degrees="18" direction="north" minutes="30" orientation="latitude" precision="15" seconds="46" value="18.512777">18°30'46"N</geoCoordinate>
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,
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<geoCoordinate degrees="98" direction="east" minutes="25" orientation="longitude" precision="15" seconds="25" value="98.42361">98°25'25"E</geoCoordinate>
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, alt. 720 m.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="type material">
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<paragraph pageId="0" pageNumber="87">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="87">Holotype</emphasis>
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(THNHM): ♂, "THAI: Chiang Mai Mae Chaem Dist., Tha Pha St. 166 (alt. 720 m) 15.VIII.2020" [printed white label] \ "HOLOTYPE
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<taxonomicName authorityName="Okada & Wewalka" authorityYear="2023" class="Insecta" family="Dytiscidae" genus="Microdytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microdytes jeenthongi" order="Coleoptera" pageId="0" pageNumber="87" phylum="Arthropoda" rank="species" species="jeenthongi">Microdytes jeenthongi</taxonomicName>
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sp. nov. Okada & Wewalka 2022 [printed red label]".
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<emphasis bold="true" italics="true" pageId="0" pageNumber="87">Paratypes</emphasis>
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(3 exs.): 2♂♂, same data as the holotype (CGW, NMW); 1♂, same locality, 4.VII.2020, R Okada leg (CRO). All paratypes are provided with printed red paratype labels.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="diagnosis">
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<paragraph pageId="0" pageNumber="87">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<taxonomicName authorityName="Okada & Wewalka" authorityYear="2023" class="Insecta" family="Dytiscidae" genus="Microdytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Microdytes jeenthongi" order="Coleoptera" pageId="0" pageNumber="87" phylum="Arthropoda" rank="species" species="jeenthongi">
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<emphasis italics="true" pageId="0" pageNumber="87">Microdytes jeenthongi</emphasis>
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</taxonomicName>
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sp. nov. resembles
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<taxonomicName lsidName="M. shunichii" pageId="0" pageNumber="87" rank="species" species="shunichii">
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<emphasis italics="true" pageId="0" pageNumber="87">M. shunichii</emphasis>
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</taxonomicName>
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<normalizedToken originalValue="Satô">Sato</normalizedToken>
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, 1995 (Fig.
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<figureCitation captionStart="Figures 18–37" captionStartId="F7" captionText="Figures 18 - 37. Habitus of 18 Microdytes akitai 19 M. balkei 20 M. dimorphus 21 M. feryi (paratype, from Myanmar) 22 M. franzi 23 M. gabrielae 24 M. heineri 25 M. maculatus 26 M. mariannae 27 M. menopausis 28 M. paoloi 29 M. pasiricus 30 M. pederzanii 31 M. rocchii 32 M. schoedli 33 M. schoenmanni (from Myanmar) 34 M. schwendingeri 35 M. shepardi 36 M. shunichii 37 M. zetteli. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures18-37" httpUri="https://binary.pensoft.net/fig/842227" pageId="0" pageNumber="87">36</figureCitation>
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) and
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<taxonomicName lsidName="M. zetteli" pageId="0" pageNumber="87" rank="species" species="zetteli">
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<emphasis italics="true" pageId="0" pageNumber="87">M. zetteli</emphasis>
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</taxonomicName>
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Wewalka, 1997 (Fig.
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<figureCitation captionStart="Figures 18–37" captionStartId="F7" captionText="Figures 18 - 37. Habitus of 18 Microdytes akitai 19 M. balkei 20 M. dimorphus 21 M. feryi (paratype, from Myanmar) 22 M. franzi 23 M. gabrielae 24 M. heineri 25 M. maculatus 26 M. mariannae 27 M. menopausis 28 M. paoloi 29 M. pasiricus 30 M. pederzanii 31 M. rocchii 32 M. schoedli 33 M. schoenmanni (from Myanmar) 34 M. schwendingeri 35 M. shepardi 36 M. shunichii 37 M. zetteli. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures18-37" httpUri="https://binary.pensoft.net/fig/842227" pageId="0" pageNumber="87">37</figureCitation>
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) in habitus, coloration and very finely punctured metasternum and metacoxae. From
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<taxonomicName lsidName="M. shunichii" pageId="0" pageNumber="87" rank="species" species="shunichii">
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<emphasis italics="true" pageId="0" pageNumber="87">M. shunichii</emphasis>
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</taxonomicName>
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it differs by the reddish brown pronotum and very finely and sparsely punctured elytra. From
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<taxonomicName lsidName="M. zetteli" pageId="0" pageNumber="87" rank="species" species="zetteli">
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<emphasis italics="true" pageId="0" pageNumber="87">M. zetteli</emphasis>
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</taxonomicName>
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it can be distinguished by larger size, less finely and sparsely punctured head.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="description">
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<paragraph pageId="0" pageNumber="87">Description.</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<emphasis bold="true" pageId="0" pageNumber="87">
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<emphasis italics="true" pageId="0" pageNumber="87">Measurements</emphasis>
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.
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</emphasis>
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TL = 1.77-1.82 mm (1.79 mm), TL-H = 1.23-1.26 mm (1.26 mm), MW = 1.18-1.23 mm (1.23 mm), TL/MW = 1.46-1.50 (1.49). Body regularly oval, moderately convex (Fig.
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<figureCitation captionStart="Figures 2–6" captionStartId="F2" captionText="Figures 2 - 6. Habitus of 2 Microdytes eliasi sp. nov., female, paratype 3 M. jeenthongi sp. nov., male, holotype 4 M. maximiliani sp. nov., male, holotype 5 M. sekaensis sp. nov., male, holotype 6 M. ubonensis sp. nov., male, holotype. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures2-6" httpUri="https://binary.pensoft.net/fig/842221" pageId="0" pageNumber="87">3</figureCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<emphasis bold="true" pageId="0" pageNumber="87">
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<emphasis italics="true" pageId="0" pageNumber="87">Coloration</emphasis>
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.
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</emphasis>
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Head reddish brown. Pronotum reddish brown, along the anterior margin narrowly and along the posterior margin more widely dark brown, especially medially. Elytron dark brown with a distinct transverse band at the base not reaching suture, continuing along the margin to a post-median transverse band and a triangular spot near the apex, and a small round post-median spot near suture (Figs
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<figureCitation captionStart="Figures 2–6" captionStartId="F2" captionText="Figures 2 - 6. Habitus of 2 Microdytes eliasi sp. nov., female, paratype 3 M. jeenthongi sp. nov., male, holotype 4 M. maximiliani sp. nov., male, holotype 5 M. sekaensis sp. nov., male, holotype 6 M. ubonensis sp. nov., male, holotype. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures2-6" httpUri="https://binary.pensoft.net/fig/842221" pageId="0" pageNumber="87">3</figureCitation>
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,
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<figureCitation captionStart="Figures 7–11" captionStartId="F3" captionText="Figures 7 - 11. Variation of markings of 7 Microdytes eliasi sp. nov. 8 M. jeenthongi sp. nov 9 M. maximiliani sp. nov. 10 M. sekaensis sp. nov. 11 M. ubonensis sp. nov. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures7-11" httpUri="https://binary.pensoft.net/fig/842222" pageId="0" pageNumber="87">8</figureCitation>
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). Ventral surface of head and prothorax yellowish brown; thorax, abdominal ventrites and elytral epipleuron reddish brown to dark brown. Legs, antennae and palpi yellowish brown.
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</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<emphasis bold="true" pageId="0" pageNumber="87">
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<emphasis italics="true" pageId="0" pageNumber="87">Sculpture and structure</emphasis>
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.
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</emphasis>
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Head finely and sparsely, slightly irregularly punctured; anterior forth finely microreticulate; clypeus not bordered. Pronotum punctured moderately irregularly, finely, and sparsely, very coarsely along posterior margin; without microreticulation; lateral margins finely bordered, regularly rounded. Elytron very sparsely and finely punctured, progressively finer and sparser towards lateral margin; one longitudinal row of punctures distinct; highly polished and shining; without microreticulation. Ventral surface: metasternum and metacoxae very finely, sparsely, and irregularly punctured; abdomen almost without punctures; without microreticulation.
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</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<emphasis bold="true" pageId="0" pageNumber="87">Male.</emphasis>
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The two parts of the median lobe expanded and pointed at apex forming the unique arrowhead shape in ventral aspect (Fig.
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<figureCitation captionStart="Figures 12–14" captionStartId="F4" captionText="Figures 12 - 14. 12 Microdytes eliasi sp. nov. 13 M. jeenthongi sp. nov. 14 M. maximiliani sp. nov. A median lobe in ventral aspect B median lobe in lateral aspect C left paramere in lateral aspect D right paramere in medial aspect. Scale bar: 0.25 mm." figureDoi="10.3897/zookeys.1159.99218.figures12-14" httpUri="https://binary.pensoft.net/fig/842223" pageId="0" pageNumber="87">13A</figureCitation>
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); almost straight and slightly expanded downwards at apex in lateral aspect (Fig.
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<figureCitation captionStart="Figures 12–14" captionStartId="F4" captionText="Figures 12 - 14. 12 Microdytes eliasi sp. nov. 13 M. jeenthongi sp. nov. 14 M. maximiliani sp. nov. A median lobe in ventral aspect B median lobe in lateral aspect C left paramere in lateral aspect D right paramere in medial aspect. Scale bar: 0.25 mm." figureDoi="10.3897/zookeys.1159.99218.figures12-14" httpUri="https://binary.pensoft.net/fig/842223" pageId="0" pageNumber="87">13B</figureCitation>
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). Parameres moderate triangular in lateral aspect (Figs
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<figureCitation captionStart="Figures 12–14" captionStartId="F4" captionText="Figures 12 - 14. 12 Microdytes eliasi sp. nov. 13 M. jeenthongi sp. nov. 14 M. maximiliani sp. nov. A median lobe in ventral aspect B median lobe in lateral aspect C left paramere in lateral aspect D right paramere in medial aspect. Scale bar: 0.25 mm." figureDoi="10.3897/zookeys.1159.99218.figures12-14" httpUri="https://binary.pensoft.net/fig/842223" pageId="0" pageNumber="87">13C, D</figureCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="87">
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<emphasis bold="true" pageId="0" pageNumber="87">Female.</emphasis>
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Unknown.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="variation">
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<paragraph pageId="0" pageNumber="87">Variation.</paragraph>
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<paragraph pageId="0" pageNumber="87">
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Variation of markings is shown in Fig.
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<figureCitation captionStart="Figures 7–11" captionStartId="F3" captionText="Figures 7 - 11. Variation of markings of 7 Microdytes eliasi sp. nov. 8 M. jeenthongi sp. nov 9 M. maximiliani sp. nov. 10 M. sekaensis sp. nov. 11 M. ubonensis sp. nov. Scale bar: 1.0 mm." figureDoi="10.3897/zookeys.1159.99218.figures7-11" httpUri="https://binary.pensoft.net/fig/842222" pageId="0" pageNumber="87">8</figureCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="etymology">
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<paragraph pageId="0" pageNumber="87">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="87">This species is dedicated to Tadsanai Jeenthong, collection manager of National Science Museum, Thailand. The species epithet is a name in the genitive singular.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="habitat">
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<paragraph pageId="0" pageNumber="87">Habitat.</paragraph>
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<paragraph pageId="0" pageNumber="87">
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This species was collected in a small, shallow stream with gravel bottom flowing through a small valley. In this stream, specimens were collected from a restricted point where tree roots were exposed along the river bottom (Fig.
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<figureCitation captionStart="Figures 45–48" captionStartId="F11" captionText="Figures 45 - 48. Collecting localities of Microdytes species in Thailand 45 Ban Kaeng, Sa Kaeo Province, one of the localities of M. eliasi sp. nov. 46 Tha Pha, Chiang Mai Province, type locality of M. jeenthongi sp. nov. 47 Ban Tong, Bueng Kan Province, type locality of M. sekaensis sp. nov. 48 Nam Thaeng, Ubon Ratchathani Province, type locality of M. ubonensis sp. nov." figureDoi="10.3897/zookeys.1159.99218.figures45-48" httpUri="https://binary.pensoft.net/fig/842231" pageId="0" pageNumber="87">46</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="87" type="distribution">
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<paragraph pageId="0" pageNumber="87">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="87">Thailand: Chiang Mai Province.</paragraph>
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</subSubSection>
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</treatment>
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</document> |