405 lines
42 KiB
XML
405 lines
42 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1125.90802" ID-Pensoft-Pub="1313-2970-1125-1" ID-Pensoft-UUID="475DBBC4E2395205AF5ACF5B642B6D41" ID-ZooBank="F4ACDB4D5BC1415CB0985D494A15263A" ModsDocID="1313-2970-1125-1" checkinTime="1666143252397" checkinUser="pensoft" docAuthor="Phlai-ngam, Sirikamon, Boonsoong, Boonsatien, Gattolliat, Jean-Luc & Tungpairojwong, Nisarat" docDate="2022" docId="6C4ABD259911546D9273936C7A550A6C" docLanguage="en" docName="ZooKeys 1125: 1-31" docOrigin="ZooKeys 1125" docPubDate="2022-10-18" docSource="http://dx.doi.org/10.3897/zookeys.1125.90802" docTitle="Megabranchiella scutulata Phlai-ngam & Tungpairojwong 2022, sp. nov." docType="treatment" docUuid="9DBB55FF-E63C-4DDA-9235-D825D0A0C08E" docUuidSource="ZooBank" docVersion="1" id="475DBBC4E2395205AF5ACF5B642B6D41" lastPageNumber="1" masterDocId="475DBBC4E2395205AF5ACF5B642B6D41" masterDocTitle="Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species" masterLastPageNumber="31" masterPageNumber="1" pageNumber="1" updateTime="1666143252397" 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>Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species</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>Phlai-ngam, Sirikamon</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-3638-6123</mods:nameIdentifier>
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<mods:affiliation>Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, 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>Boonsoong, Boonsatien</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8166-0021</mods:nameIdentifier>
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<mods:affiliation>Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, 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>Gattolliat, Jean-Luc</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5873-5083</mods:nameIdentifier>
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<mods:affiliation>Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland & Department of Ecology and Evolution, University of Lausanne, CH- 1015 Lausanne, Switzerland</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>Tungpairojwong, Nisarat</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8135-4246</mods:nameIdentifier>
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<mods:affiliation>Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand</mods:affiliation>
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<mods:nameIdentifier type="email">knisar@kku.ac.th</mods:nameIdentifier>
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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>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-10-18</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>1125</mods:number>
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</mods:detail>
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||
<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>31</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.1125.90802</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.1125.90802</mods:identifier>
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||
<mods:identifier type="Pensoft-Pub">1313-2970-1125-1</mods:identifier>
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||
<mods:identifier type="ZooBank">F4ACDB4D5BC1415CB0985D494A15263A</mods:identifier>
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<mods:identifier type="Pensoft-UUID">475DBBC4E2395205AF5ACF5B642B6D41</mods:identifier>
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||
</mods:mods>
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||
<treatment LSID="urn:lsid:zoobank.org:act:9DBB55FF-E63C-4DDA-9235-D825D0A0C08E" httpUri="http://treatment.plazi.org/id/6C4ABD259911546D9273936C7A550A6C" lastPageNumber="1" pageId="0" pageNumber="1">
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||
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
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||
<paragraph pageId="0" pageNumber="1">
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<taxonomicName LSID="https://zoobank.org/9DBB55FF-E63C-4DDA-9235-D825D0A0C08E" authority="Phlai-ngam & Tungpairojwong" authorityName="Phlai-ngam & Tungpairojwong" authorityYear="2022" genus="Megabranchiella" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" rank="species" species="scutulata" status="sp. nov.">Megabranchiella scutulata Phlai-ngam & Tungpairojwong</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="materials_examined">
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<paragraph pageId="0" pageNumber="1">Materials examined.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<materialsCitation collectingDate="2020-12-21" collectorName="S. Phlai-ngam" country="Thailand" county="One" elevation="779" latitude="18.867125" location="Mae Kampong" longLatPrecision="1" longitude="99.32245" municipality="Mae On district" specimenCount="1" stateProvince="Chiang Mai" typeStatus="Holotype">
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||
<emphasis bold="true" pageId="0" pageNumber="1">
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||
<emphasis italics="true" pageId="0" pageNumber="1">
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<typeStatus>Holotype</typeStatus>
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</emphasis>
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.
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</emphasis>
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<collectingCountry name="Thailand">Thailand</collectingCountry>
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,
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<collectingCounty>One</collectingCounty>
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male larva on slide (KKU-AIC),
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<collectingRegion country="Thailand" name="Chiang Mai">Chiang Mai</collectingRegion>
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,
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<collectingMunicipality>Mae On district</collectingMunicipality>
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,
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<location LSID="urn:lsid:plazi:treatment:6C4ABD259911546D9273936C7A550A6C:0289463A06997CEDA1255099F618B932" country="Thailand" county="One" latitude="18.867125" longLatPrecision="1" longitude="99.32245" municipality="Mae On district" name="Mae Kampong" stateProvince="Chiang Mai">Mae Kampong</location>
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,
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<location LSID="urn:lsid:plazi:treatment:6C4ABD259911546D9273936C7A550A6C:DB59B854F31807D8D29AFD1B2F10DC45" country="Thailand" county="One" latitude="18.867125" longLatPrecision="1" longitude="99.32245" municipality="Mae On district" name="The Royal Project of Teen Tok" stateProvince="Chiang Mai">The Royal Project of Teen Tok</location>
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,
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<geoCoordinate degrees="18" direction="north" minutes="52" orientation="latitude" precision="1" seconds="01.65" value="18.867125">18°52'01.65N</geoCoordinate>
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,
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<geoCoordinate degrees="99" direction="east" minutes="19" orientation="longitude" precision="1" seconds="20.83" value="99.32245">99°19'20.83E</geoCoordinate>
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,
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<quantity metricMagnitude="2" metricUnit="m" metricValue="7.79" unit="m" value="779.0">
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<elevation metricMagnitude="2" metricUnit="m" metricValue="7.79" unit="m" value="779.0">779 m</elevation>
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</quantity>
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,
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<collectingDate value="2020-12-21">21.12.2020</collectingDate>
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,
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<collectorName>S. Phlai-ngam</collectorName>
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leg.
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</materialsCitation>
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<materialsCitation collectingDate="2022-01-01" collectingDateMax="2022-12-31" collectingDateMin="2022-01-01" collectorName="S. Phlai-ngam" country="Thailand" county="One" elevation="779" latitude="18.867125" location="Mae Kampong" longLatPrecision="1" longitude="99.32245" municipality="Mae On district" specimenCount="1" stateProvince="Chiang Mai" typeStatus="Paratypes">
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<emphasis bold="true" pageId="0" pageNumber="1">
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<emphasis italics="true" pageId="0" pageNumber="1">
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<typeStatus>Paratypes</typeStatus>
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</emphasis>
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.
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</emphasis>
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One larva on slide (KKU-AIC), same data as holotype
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</materialsCitation>
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;
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<materialsCitation collectingDate="2022-01-01" collectingDateMax="2022-12-31" collectingDateMin="2022-01-01" collectorName="S. Phlai-ngam" country="Thailand" county="One" elevation="779" latitude="18.867125" location="Mae Kampong" longLatPrecision="1" longitude="99.32245" municipality="Mae On district" specimenCount="21" specimenCount-larva="21" stateProvince="Chiang Mai" typeStatus="paratype">
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<specimenCount type="larva">21 larvae</specimenCount>
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in alcohol, same data as holotype
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</materialsCitation>
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;
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<materialsCitation collectingDate="2022-01-01" collectingDateMax="2022-12-31" collectingDateMin="2022-01-01" collectorName="S. Phlai-ngam" country="Thailand" county="One" elevation="779" latitude="18.867125" location="Mae Kampong" longLatPrecision="1" longitude="99.32245" municipality="Mae On district" specimenCount="1" stateProvince="Chiang Mai" typeStatus="paratype">Four larvae in alcohol (MZL), same data as holotype</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="materials_examined">
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<paragraph pageId="0" pageNumber="1">Other materials.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<materialsCitation collectingDate="2022-01-01" collectingDateMax="2022-12-31" collectingDateMin="2022-01-01" collectorName="B. Boonsoong, C. Sutthinun" country="Thailand" county="Two" elevation="476" latitude="20.011" location="Pong Phra Baht" longLatPrecision="1" longitude="99.80402" municipality="Muang district" specimenCount="1" stateProvince="Chiang Rai">
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<collectingCounty>Two</collectingCounty>
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larvae in alcohol (ZMKU),
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<collectingCountry name="Thailand">Thailand</collectingCountry>
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,
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<collectingRegion country="Thailand" name="Chiang Rai">Chiang Rai</collectingRegion>
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,
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<collectingMunicipality>Muang district</collectingMunicipality>
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,
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<location LSID="urn:lsid:plazi:treatment:6C4ABD259911546D9273936C7A550A6C:02D33EB0FAF324B08A54D5A157E1B32A" country="Thailand" county="Two" latitude="20.011" longLatPrecision="1" longitude="99.80402" municipality="Muang district" name="Pong Phra Baht" stateProvince="Chiang Rai">Pong Phra Baht</location>
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waterfall,
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<geoCoordinate degrees="20" direction="north" minutes="00" orientation="latitude" precision="1" seconds="39.60" value="20.011">20°00'39.60N</geoCoordinate>
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,
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<geoCoordinate degrees="99" direction="east" minutes="48" orientation="longitude" precision="1" seconds="14.47" value="99.80402">99°48'14.47E</geoCoordinate>
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,
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<quantity metricMagnitude="2" metricUnit="m" metricValue="4.76" unit="m" value="476.0">
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<elevation metricMagnitude="2" metricUnit="m" metricValue="4.76" unit="m" value="476.0">476 m</elevation>
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</quantity>
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,
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<collectorName>B. Boonsoong</collectorName>
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and
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<collectorName>C. Sutthinun</collectorName>
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leg.
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="description">
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<paragraph pageId="0" pageNumber="1">Description.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Coloration</emphasis>
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(Figs
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Megabranchiella scutulata sp. nov., male larva A early larval stage B last larval instar." figureDoi="10.3897/zookeys.1125.90802.figure1" httpUri="https://binary.pensoft.net/fig/758195" pageId="0" pageNumber="1">1</figureCitation>
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-
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megabranchiella scutulata sp. nov., female larva. A early larval stage B last larval instar." figureDoi="10.3897/zookeys.1125.90802.figure2" httpUri="https://binary.pensoft.net/fig/758196" pageId="0" pageNumber="1">2</figureCitation>
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). Head dorsally yellow to brownish, with a darker brown pattern between ocelli. Thorax dorsally brown; pronotum with dark brown pattern laterodorsally, mesonotum with longitudinally dark brown pattern medially. Abdomen dorsally brownish; tergite I light brown; tergites I-VIII brown with reddish brown pattern posterolaterally, tergites IV and V slightly lighter; tergites IX and X light brown with or without pale markings. Head and thorax ventrally light brown to yellow; abdomen ventrally light brown; sternites I-V light brown; sternites V-X medium to dark brown (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megabranchiella scutulata sp. nov., ventral view A early larval stage B last larval instar. (arrow: gills I)." figureDoi="10.3897/zookeys.1125.90802.figure3" httpUri="https://binary.pensoft.net/fig/758197" pageId="0" pageNumber="1">3</figureCitation>
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). Legs light brown; dorsal, ventral, and apical femur margins dark brown; claws distally dark brown. Caudal filaments brownish.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Body</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megabranchiella scutulata sp. nov., larval habitus A dorsal view B lateral view C ventral view. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1125.90802.figure4" httpUri="https://binary.pensoft.net/fig/758198" pageId="0" pageNumber="1">4</figureCitation>
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). Relatively short and ventrally flattened (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megabranchiella scutulata sp. nov., larval habitus A dorsal view B lateral view C ventral view. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1125.90802.figure4" httpUri="https://binary.pensoft.net/fig/758198" pageId="0" pageNumber="1">4B</figureCitation>
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), body length 3.6 mm, covered with scattered long, hair-like setae.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Head</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megabranchiella scutulata sp. nov., larval habitus A dorsal view B lateral view C ventral view. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1125.90802.figure4" httpUri="https://binary.pensoft.net/fig/758198" pageId="0" pageNumber="1">4B</figureCitation>
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). Lateral view rounded, head width ca. 1.5
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as head length.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" pageId="0" pageNumber="1">
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<emphasis italics="true" pageId="0" pageNumber="1">Antenna</emphasis>
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.
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</emphasis>
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ca. 2
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as head length (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megabranchiella scutulata sp. nov., larval habitus A dorsal view B lateral view C ventral view. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1125.90802.figure4" httpUri="https://binary.pensoft.net/fig/758198" pageId="0" pageNumber="1">4B</figureCitation>
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); scape without process, subequal in width and length, pedicel length, ca. 2
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as width, scape and pedicel almost bare, without scales bases and spines, covered with scattered long fine setae; flagellum covered with scattered long fine setae in each segment.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Labrum</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5A</figureCitation>
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). Broadly rounded; wider than long, width ca. 1.75
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as length; dorsal surface with submarginal row composed of one long, point, simple seta medially plus three medium, simple setae anterolaterally, dorsal surface with scattered simple, hairlike setae; distal margin with shallow anteromedian notch. Ventrally with submarginal row of setae composed of lateral and anterolateral long, feathered setae and medial long, pectinate setae; ventral surface with six short, spine-like setae near lateral and anterolateral margin.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Right mandible</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5B</figureCitation>
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). Canine with 4 + 4 apically rounded denticles (Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5C</figureCitation>
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), largely fused outer and inner incisors, inner margin of inner incisor with small denticulation; prostheca robust (Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5D</figureCitation>
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), apically with small denticles and comb-shaped structure; margin between mola and prostheca smooth, without setae; mola with well-developed denticulation; apex of mola with tuft of spines like setae.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Left mandible</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5E</figureCitation>
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). Canine with 4 + 3 apically rounded denticles (Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5F</figureCitation>
|
||
), largely fused outer and inner incisors, outer and inner incisors separated by a small, rounded tooth; prostheca robust (Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5G</figureCitation>
|
||
), apically with small denticles and comb-shaped structure; margin between mola and prostheca smooth, without setae; mola with reduced denticulation, apex of mola with tuft of spines like setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Maxilla</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5H</figureCitation>
|
||
). Short and compact; galea-lacinia (Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5I</figureCitation>
|
||
) with long, robust, simple seta under crown; inner dorsal row of setae with three denti-setae, distal denti-seta tooth-like, middle denti-seta slender, bifid and pectinate (Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5J</figureCitation>
|
||
); proximal denti-seta slender, pectinate; inner ventral row of seven robust, simple setae; medially with one seta and four short to long, simple setae. Maxillary palp 2-segmented, with scattered small, blunt setae; distal segment with distinct, small tip at apex.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Labium</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5K</figureCitation>
|
||
). Glossa basally broad, narrower toward apex, slightly shorter than paraglossa; inner margin with medium, pointed, simple setae; apex with four long, robust, pectinate setae; basal area with fine scattered setae. Paraglossa sub-rectangular, broader than glossa, apically curved inward, apical margin with three rows of long, robust, apically pectinate setae (Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5L</figureCitation>
|
||
), ventrally with 4-5 long, spine-like setae near inner margin, with an arch of 4-5 long, simple setae on outer margin; basal area with a single medium seta. Labial palp 3-segmented, segment I rectangular and broad, covered with scattered fine, setae and several micropores; segment II with small distolateral expansion, with a few scattered, simple setae and row of setae reduced to two large, blunt, robust, simple setae near distal margin; segment III rounded, covered with long, robust, simple setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Hypopharynx</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megabranchiella scutulata sp. nov., larval morphology A labrum B right mandible C right incisor D right prostheca E left mandible F left incisor G left prostheca H maxilla I apex of galea-lacinia J denti-seta K labium L long, robust, pectinate setae M hypopharynx." figureDoi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1">5M</figureCitation>
|
||
). Lingua subequal to superlingua, apically rounded, with apical tuft of fine, simple setae; superlingua with distal margin slightly incurved, margin covered with fine simple setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Thorax</emphasis>
|
||
.
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Hindwing pads</emphasis>
|
||
</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Megabranchiella scutulata sp. nov., larval morphology (SEM) A hindwing pad B forefemur (dorsal view) C setae on dorsal margin of forefemur D setae on ventral margin of forefemur E abdominal tergites F tergite V. Scale bars: 50 um (A); 100 um (B-C, F); 20 um (D); 500 um (E)." figureDoi="10.3897/zookeys.1125.90802.figure8" httpUri="https://binary.pensoft.net/fig/758202" pageId="0" pageNumber="1">8A</figureCitation>
|
||
). Highly reduced.
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.1125.90802.figure8" httpUri="https://binary.pensoft.net/fig/758202" pageId="0" pageNumber="1" start="Figure 8" startId="F8">
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">Figure 8.</emphasis>
|
||
<taxonomicName authorityName="Phlai-ngam & Tungpairojwong" authorityYear="2022" genus="Megabranchiella" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" rank="species" species="scutulata">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
|
||
</taxonomicName>
|
||
sp. nov., larval morphology (SEM)
|
||
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
|
||
hindwing pad
|
||
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
|
||
forefemur (dorsal view)
|
||
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
|
||
setae on dorsal margin of forefemur
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
|
||
setae on ventral margin of forefemur
|
||
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
|
||
abdominal tergites
|
||
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
|
||
tergite V. Scale bars: 50 um (
|
||
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
|
||
); 100 um (
|
||
<emphasis bold="true" pageId="0" pageNumber="1">B-C, F</emphasis>
|
||
); 20 um (
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
|
||
); 500 um (
|
||
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Forelegs</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megabranchiella scutulata sp. nov., larval morphology A foreleg B tarsal claw C tergite V D abdominal gills I-VII E Paraproct and notched scales on surface." figureDoi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1">7A</figureCitation>
|
||
). Ratio of foreleg segments 0.58: 0.48: 0.22.
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Femur</emphasis>
|
||
. Length ca. 2.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
maximum width. Dorsal margin of femur (Figs
|
||
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megabranchiella scutulata sp. nov., larval morphology A dorsal margin of femur B dorsal view of abdomen C enlargement of abdominal tergites V-VII D ventral view of abdominal gills I (arrow) E ventral view of gonostyli. Scale bars: 0.15 mm (A); 0.5 mm (B); 0.25 mm (C); 0.4 mm (D); 0.3 mm (E)." figureDoi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1">6A</figureCitation>
|
||
,
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Megabranchiella scutulata sp. nov., larval morphology (SEM) A hindwing pad B forefemur (dorsal view) C setae on dorsal margin of forefemur D setae on ventral margin of forefemur E abdominal tergites F tergite V. Scale bars: 50 um (A); 100 um (B-C, F); 20 um (D); 500 um (E)." figureDoi="10.3897/zookeys.1125.90802.figure8" httpUri="https://binary.pensoft.net/fig/758202" pageId="0" pageNumber="1">8B-C</figureCitation>
|
||
) with a row of 11-13 long, robust, apically rounded, simple setae; short stout, lanceolate, laterally pectinate setae and scattered fine hair-like setae along dorsal and ventral margins (Fig.
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Megabranchiella scutulata sp. nov., larval morphology (SEM) A hindwing pad B forefemur (dorsal view) C setae on dorsal margin of forefemur D setae on ventral margin of forefemur E abdominal tergites F tergite V. Scale bars: 50 um (A); 100 um (B-C, F); 20 um (D); 500 um (E)." figureDoi="10.3897/zookeys.1125.90802.figure8" httpUri="https://binary.pensoft.net/fig/758202" pageId="0" pageNumber="1">8D</figureCitation>
|
||
); femora patch present; surface with scattered tiny spines anteromedially (Fig.
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Megabranchiella scutulata sp. nov., larval morphology (SEM) A hindwing pad B forefemur (dorsal view) C setae on dorsal margin of forefemur D setae on ventral margin of forefemur E abdominal tergites F tergite V. Scale bars: 50 um (A); 100 um (B-C, F); 20 um (D); 500 um (E)." figureDoi="10.3897/zookeys.1125.90802.figure8" httpUri="https://binary.pensoft.net/fig/758202" pageId="0" pageNumber="1">8E</figureCitation>
|
||
); scattered long translucent scales present; dorsal margin of tibia with a row of long, simple setae; several short stout, lanceolate, laterally pectinate setae and scattered hair-like setae along dorsal and ventral margins, patella-tibial suture present; tarsus dorsally with a row of fine, spine-like, simple setae, ventral margin bare or with a row of fine, spine-like, simple setae, surface covered with scattered fine hair-like setae; tarsal claw (Fig.
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megabranchiella scutulata sp. nov., larval morphology A foreleg B tarsal claw C tergite V D abdominal gills I-VII E Paraproct and notched scales on surface." figureDoi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1">7B</figureCitation>
|
||
) with one row of about 12 denticles increasing in length toward apex, subapical setae absent.
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Midlegs and hindlegs</emphasis>
|
||
. As forelegs.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Abdomen</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megabranchiella scutulata sp. nov., larval morphology A dorsal margin of femur B dorsal view of abdomen C enlargement of abdominal tergites V-VII D ventral view of abdominal gills I (arrow) E ventral view of gonostyli. Scale bars: 0.15 mm (A); 0.5 mm (B); 0.25 mm (C); 0.4 mm (D); 0.3 mm (E)." figureDoi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1">6B</figureCitation>
|
||
).
|
||
<emphasis bold="true" pageId="0" pageNumber="1">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Tergites</emphasis>
|
||
.
|
||
</emphasis>
|
||
Posterior margin smooth, posterior marginal spines extremely reduced to absent, tergal surface with scattered stout, fine, hair-like setae and scattered long translucent scales distally (Figs
|
||
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megabranchiella scutulata sp. nov., larval morphology A dorsal margin of femur B dorsal view of abdomen C enlargement of abdominal tergites V-VII D ventral view of abdominal gills I (arrow) E ventral view of gonostyli. Scale bars: 0.15 mm (A); 0.5 mm (B); 0.25 mm (C); 0.4 mm (D); 0.3 mm (E)." figureDoi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1">6C</figureCitation>
|
||
,
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megabranchiella scutulata sp. nov., larval morphology A foreleg B tarsal claw C tergite V D abdominal gills I-VII E Paraproct and notched scales on surface." figureDoi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1">7C</figureCitation>
|
||
,
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Megabranchiella scutulata sp. nov., larval morphology (SEM) A hindwing pad B forefemur (dorsal view) C setae on dorsal margin of forefemur D setae on ventral margin of forefemur E abdominal tergites F tergite V. Scale bars: 50 um (A); 100 um (B-C, F); 20 um (D); 500 um (E)." figureDoi="10.3897/zookeys.1125.90802.figure8" httpUri="https://binary.pensoft.net/fig/758202" pageId="0" pageNumber="1">8F</figureCitation>
|
||
); abdominal sternites without posterior marginal spines; sternal surface with loose scattered fine, hair-like setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Gills</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megabranchiella scutulata sp. nov., larval morphology A foreleg B tarsal claw C tergite V D abdominal gills I-VII E Paraproct and notched scales on surface." figureDoi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1">7D</figureCitation>
|
||
). Seven pairs of gills present on abdominal tergites I-VII; gills I (Fig.
|
||
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megabranchiella scutulata sp. nov., larval morphology A dorsal margin of femur B dorsal view of abdomen C enlargement of abdominal tergites V-VII D ventral view of abdominal gills I (arrow) E ventral view of gonostyli. Scale bars: 0.15 mm (A); 0.5 mm (B); 0.25 mm (C); 0.4 mm (D); 0.3 mm (E)." figureDoi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1">6D</figureCitation>
|
||
) enlarged to covered abdominal sternites II-V, ventrally oriented, relatively rhombus shape, length approximately 1.4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
of width, medially part broad, tracheation extending from main trunk to outer margin, gill margin smooth, surface and gill margin without long, fine hair-like setae; gills II-VII oriented dorsolaterally, slightly oval length approximately 2.1
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
of width, gill margin smooth, surface and gill margin covered with scattered long, fine hair-like setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Gonostyli bud</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megabranchiella scutulata sp. nov., larval morphology A dorsal margin of femur B dorsal view of abdomen C enlargement of abdominal tergites V-VII D ventral view of abdominal gills I (arrow) E ventral view of gonostyli. Scale bars: 0.15 mm (A); 0.5 mm (B); 0.25 mm (C); 0.4 mm (D); 0.3 mm (E)." figureDoi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1">6E</figureCitation>
|
||
).
|
||
<taxonomicName authorityName="Bengtsson" authorityYear="1912" class="Insecta" family="Baetidae" genus="Acentrella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acentrella" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Acentrella</emphasis>
|
||
</taxonomicName>
|
||
-type, three-segmented, segment I very short, 0.3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
of segment II length, segment III relatively short and broad, rounded at apex.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Paraproct</emphasis>
|
||
(Fig.
|
||
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megabranchiella scutulata sp. nov., larval morphology A foreleg B tarsal claw C tergite V D abdominal gills I-VII E Paraproct and notched scales on surface." figureDoi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1">7E</figureCitation>
|
||
). Margin smooth without marginal spines and without prolongation at posterior margin. Surface without scale bases, with micropores and fine, stout, simple setae and scattered fine, hair-like setae, and with a patch of notch scales.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Caudal filaments</emphasis>
|
||
.
|
||
</emphasis>
|
||
Cerci 0.4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
of body length, inner margin of cerci with very thin, long setae; median filament 0.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
of cerci length, lateral margins with very thin, long setae.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="winged stages">
|
||
<paragraph pageId="0" pageNumber="1">Winged stages.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">Unknown</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="etymology">
|
||
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
The name of the species
|
||
<normalizedToken originalValue="“scutula”">"scutula"</normalizedToken>
|
||
refers to the outline of abdominal gill I which is rhombus- shaped.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="distribution">
|
||
<paragraph pageId="0" pageNumber="1">Distribution.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Northern part of Thailand (Chiang Mai and Chiang Rai Provinces) (Fig.
|
||
<figureCitation captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Distribution of genus Megabranchiella gen. nov. in Thailand A distribution of M. scutulata sp. nov. (red triangle) B distribution of M. longusa sp. nov. (blue triangle)." figureDoi="10.3897/zookeys.1125.90802.figure15" httpUri="https://binary.pensoft.net/fig/758209" pageId="0" pageNumber="1">15</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="ecological notes">
|
||
<paragraph pageId="0" pageNumber="1">Ecological notes.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
The larvae were collected in headwater stream (Mae Kampong River) (Fig.
|
||
<figureCitation captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Type locality and larval habitats of Megabranchiella gen. nov. A-C type locality and larval habitats of M. scutulata sp. nov. A Mae Kampong stream, The Royal Project of Teen Tok, Chiang Mai Province B Pong Phra Baht Waterfall, Chiang Rai Province C fast-flowing water with pebble and cobble habitats (D-F) type locality and larval habitats of M. longusa sp. nov. D Siribhum waterfall, Chiang Mai Province E Sapan River, Bor Kluea district, Nan Province F fast-flowing water with boulder, cobble, and pebble habitats." figureDoi="10.3897/zookeys.1125.90802.figure14" httpUri="https://binary.pensoft.net/fig/758208" pageId="0" pageNumber="1">14A</figureCitation>
|
||
) and Pong Phra Baht waterfall (Fig.
|
||
<figureCitation captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Type locality and larval habitats of Megabranchiella gen. nov. A-C type locality and larval habitats of M. scutulata sp. nov. A Mae Kampong stream, The Royal Project of Teen Tok, Chiang Mai Province B Pong Phra Baht Waterfall, Chiang Rai Province C fast-flowing water with pebble and cobble habitats (D-F) type locality and larval habitats of M. longusa sp. nov. D Siribhum waterfall, Chiang Mai Province E Sapan River, Bor Kluea district, Nan Province F fast-flowing water with boulder, cobble, and pebble habitats." figureDoi="10.3897/zookeys.1125.90802.figure14" httpUri="https://binary.pensoft.net/fig/758208" pageId="0" pageNumber="1">14B</figureCitation>
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). The sampling sites were located with altitudes of 475-780 m a.s.l. Both stream and waterfall were situated in forest areas with relatively complete canopy cover on mountains in the northern part of Thailand. The stream was in The Royal Project of Teen Tok area which has some human disturbances resulting from touristic attractions and resorts. The substrates were dominated by 50% cobbles, 20% pebble, 20% boulders, 10% gravels respectively with sand bottom. The waterfall was located upstream. The larvae were found on the surface of cobbles in fast-flowing water (Fig.
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<figureCitation captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Type locality and larval habitats of Megabranchiella gen. nov. A-C type locality and larval habitats of M. scutulata sp. nov. A Mae Kampong stream, The Royal Project of Teen Tok, Chiang Mai Province B Pong Phra Baht Waterfall, Chiang Rai Province C fast-flowing water with pebble and cobble habitats (D-F) type locality and larval habitats of M. longusa sp. nov. D Siribhum waterfall, Chiang Mai Province E Sapan River, Bor Kluea district, Nan Province F fast-flowing water with boulder, cobble, and pebble habitats." figureDoi="10.3897/zookeys.1125.90802.figure14" httpUri="https://binary.pensoft.net/fig/758208" pageId="0" pageNumber="1">14C</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> |