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<document id="690CD0C0BBF95B269F999FCE2A7497D9" ID-DOI="10.3897/zookeys.1216.129803" ID-ZooBank="2312FE20-8C12-48B2-8D97-CFC920CCF5C2" ID-publisher-id="129803" URI-arpha="A3CDEAEA-9B77-5E53-AEA4-E47BCCB892F1" URI-zoobank="http://zoobank.org/2312FE20-8C12-48B2-8D97-CFC920CCF5C2" XM.bibliography_approvedBy="admin" XM.materialsCitations_approvedBy="admin" XM.taxonomicNames_approvedBy="admin" XM.treatmentCitations_approvedBy="admin" article-type="research-article" checkinTime="1729695835341" checkinUser="pensoft" docAuthor="Tong, Xiaoli, Zhou, Zhiheng &amp; Wu, Bangyi" docDate="2024" docId="7B0507CD145355E5BE2483370FC43629" docLanguage="en" docName="ZooKeys 1216: 115-148" docOrigin="ZooKeys 1216" docSource="https://zookeys.pensoft.net/article/129803/download/xml/" docStyle="DocumentStyle:PensoftTaxPub.0000.journal_article.generic" docStyleName="PensoftTaxPub.0000.journal_article.generic" docTitle="Megabranchiella longusa Phlai-ngam &amp; Tungpairojwong 2022" docType="treatment" docVersion="3" dtd-version="3.0" lastPageNumber="148" masterDocId="A3CDEAEA9B775E53AEA4E47BCCB892F1" masterDocTitle="First contribution to the genera Branchiobaetis and Megabranchiella (Ephemeroptera, Baetidae) in China, with descriptions of two new species" masterLastPageNumber="148" masterPageNumber="115" pageNumber="115" updateTime="1729698259975" updateUser="admin">
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<mods:title id="D4F512C5B39E7B2EEAC1C8DD2FD604F7">First contribution to the genera Branchiobaetis and Megabranchiella (Ephemeroptera, Baetidae) in China, with descriptions of two new species</mods:title>
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<mods:namePart id="C1242F668CF1BA01F2F4B0C7DC855D64">Tong, Xiaoli</mods:namePart>
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<mods:affiliation id="E0C31F4E6C2B49709DB247D63928D1D1">Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong Province, China</mods:affiliation>
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<mods:namePart id="8A41C6C69879E65ADD38A8E843574264">Zhou, Zhiheng</mods:namePart>
<mods:nameIdentifier id="AFEFE83D42925C9122CB339DCB5782E7" type="ORCID">https://orcid.org/0009-0009-0763-8713</mods:nameIdentifier>
<mods:affiliation id="E1A4D90C627A23A4796D09B7CAFEBB4A">Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong Province, China</mods:affiliation>
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<mods:namePart id="2A5458C618F83699001CDA2D199AF967">Wu, Bangyi</mods:namePart>
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<mods:affiliation id="4D099C94BA327932CCD0CC3EC4B52335">Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong Province, China</mods:affiliation>
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<paragraph id="0EC6F48103DBE8F5952B0B4E5E0FA78B">
<taxonomicName id="1859EBB2A2F515085F6327C9E997648A" authority="Phlai-ngam &amp; Tungpairojwong, 2022" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="E4A5E020F61AB90B9A774A7B452C4982" italics="true">Megabranchiella longusa</emphasis>
<bibRefCitation id="9025B1C69B189FA44146CA7BEEFC33E7" DOI="10.3897/zookeys.1125.90802" author="Phlai-ngam S &amp; Boonsoong B &amp; Gattolliat J-L &amp; Tungpairojwong N" journalOrPublisher="ZooKeys" pagination="1-31" refId="B30" refString="Phlai-ngam S, Boonsoong B, Gattolliat J-L, Tungpairojwong N (2022) Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species. ZooKeys 1125: 1 - 31. https: // doi. org / 10.3897 / zookeys. 1125.90802" title="Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species." volume="1125" year="2022">Phlai-ngam &amp; Tungpairojwong, 2022</bibRefCitation>
</taxonomicName>
</paragraph>
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<subSubSection id="691784401F9222F545E274EBC5315DF9" type="description">
<paragraph id="7814E571D35FA2782601C6FE7B3E9D83">
<figureCitation id="97C3B8C5E9B9CBDB9FF24AC390468CE0" captionStart="Figure 18" captionStartId="F18" captionText="Figure 18. Larval habitus of Megabranchiella longusa a, b female larva (dorsal view) c female larva (lateral view) d female larva (ventral view)." figureDoi="10.3897/zookeys.1216.129803.figure18" httpUri="https://binary.pensoft.net/fig/1159415">Figs 18</figureCitation>
,
<figureCitation id="EFEC69869D999701C132A84EDF7C3CE9" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">19</figureCitation>
,
<figureCitation id="DA4A3E22AF4C91BE32F67BFB4394CBF1" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Megabranchiella longusa a gills I, III, V, VII b hindwing pad c dorsal margin of femur d villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore . Scale bar: 0.1 mm." figureDoi="10.3897/zookeys.1216.129803.figure20" httpUri="https://binary.pensoft.net/fig/1159417">20</figureCitation>
,
<figureCitation id="9FC62F5289BC45AA5E7657F68AACC5FC" captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Megabranchiella longusa a abdominal tergites III VI b claw c foreleg d notched scales on paraproct surface e paraproct." figureDoi="10.3897/zookeys.1216.129803.figure21" httpUri="https://binary.pensoft.net/fig/1159418">21</figureCitation>
</paragraph>
</subSubSection>
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<paragraph id="BD56F91ADD8215A5D30886B1529D3915">
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<taxonomicName id="AB77CF6AF8494A7F6E5698F70E088C5A" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="644A64C39384DD09C043AFA0AA6639CF" italics="true">Megabranchiella longusa</emphasis>
</taxonomicName>
<comment id="B35E12B134FDDC7BA45C4D40593782DD">
: Phlai-ngam &amp; Tungpairojwong in
<treatmentCitation id="344730251D57306B90F99C4A0CBA25FA" LSID="urn:lsid:zoobank.org:act:65816410-4304-459F-85AF-5C372989F48A" author="Phlai-ngam S &amp; Boonsoong B &amp; Gattolliat J-L &amp; Tungpairojwong N" httpUri="http://treatment.plazi.org/id/31CA90DC3320585B8D2A2FC947835621" page="16" year="2022">
<bibRefCitation id="0D971743E9C2EC6993F50110E6B723E5" DOI="10.3897/zookeys.1125.90802" author="Phlai-ngam S &amp; Boonsoong B &amp; Gattolliat J-L &amp; Tungpairojwong N" etAl="et al." firstAuthor="Phlai-ngam" journalOrPublisher="ZooKeys" page="16" pagination="1-31" refId="B30" refString="Phlai-ngam S, Boonsoong B, Gattolliat J-L, Tungpairojwong N (2022) Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species. ZooKeys 1125: 131. https://doi.org/10.3897/zookeys.1125.90802" title="Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species." volume="1125" year="2022">Phlai-ngam et al. 2022: 16</bibRefCitation>
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.
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</paragraph>
</subSubSection>
<subSubSection id="SECID0EYMAG" type="material">
<paragraph id="ACF7D2E7AC04F12F9775E02B4735B312">
<heading id="25EFB82DBAA49D5FCA9400A075E153F8" reason="title">Material examined.</heading>
</paragraph>
<paragraph id="7C7517B0001DCA1F4AE7FBAD40374100">
<materialsCitation id="0C10E4BC22EF8657059D34B9054B1DEB" collectingDate="2019-03-21" collectorName="Xiaoli Tong" elevation="1112" location="Bajiao River" municipality="Lushui" specimenCount="1" specimenCount-larva="1" stateProvince="Yunnan">
<specimenCount id="52D505F39DF5EF7158C6EED97943E770" count="1" type="larva">One female larva</specimenCount>
on slide;
<collectingRegion id="50C22880D7B3065F649BDDD1C3DFFE9F" country="China" name="Yunnan">Yunnan</collectingRegion>
,
<collectingMunicipality id="A256D3043719506E1B2D171863FA6628">Lushui</collectingMunicipality>
,
<location id="9185B8D360F113A137C4EC814D420AF0" LSID="urn:lsid:plazi:treatment:7B0507CD145355E5BE2483370FC43629:9185B8D360F113A137C4EC814D420AF0" municipality="Lushui" name="Bajiao River" stateProvince="Yunnan">Bajiao River</location>
(a tributary of the Nujiang River, altitude
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<elevation id="0127BE9DCCAA85EDC5B0758C5912988D" metricMagnitude="3" metricUnit="m" metricValue="1.112" unit="m" value="1112.0">1112 m</elevation>
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);
<date id="8B111518B035682653E13238F8D9C3D1" value="2019-03-21">
<collectingDate id="F46752890F28DE345366089E3B5506C1" value="2019-03-21">21. iii. 2019</collectingDate>
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; leg.
<collectorName id="7B802439F078E3A10C9EAEC0D14BF44E">Xiaoli Tong</collectorName>
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.
</paragraph>
</subSubSection>
<subSubSection id="SECID0E4MAG" type="diagnosis">
<paragraph id="57FD751F91123754B80A7C93B48373DB">
<heading id="64A719CCF0071A0CCE19EF47A3191433" reason="title">Diagnosis.</heading>
</paragraph>
<paragraph id="FB77DA5CF0113D97C82A0DD683642CAD">
Female larva (Fig.
<figureCitation id="E2D8442CDE6453AE5390ED38D6D375A4" captionStart="Figure 18" captionStartId="F18" captionText="Figure 18. Larval habitus of Megabranchiella longusa a, b female larva (dorsal view) c female larva (lateral view) d female larva (ventral view)." figureDoi="10.3897/zookeys.1216.129803.figure18" httpUri="https://binary.pensoft.net/fig/1159415">18 a d</figureCitation>
), body short and flattened, length ~ 4.0 mm; body colour pattern as Fig.
<figureCitation id="7F5E26FA4F92AD3AE7BD6713495400FA" captionStart="Figure 18" captionStartId="F18" captionText="Figure 18. Larval habitus of Megabranchiella longusa a, b female larva (dorsal view) c female larva (lateral view) d female larva (ventral view)." figureDoi="10.3897/zookeys.1216.129803.figure18" httpUri="https://binary.pensoft.net/fig/1159415">18 a c</figureCitation>
.
<emphasis id="741081D329E9CC0170D2DF5FC2A819D4" bold="true">
<emphasis id="6B7A4C1BEA9076B39CB086351C76F153" bold="true" italics="true">Head</emphasis>
.
</emphasis>
Labrum nearly semicircular, ~ 1.4 × wider than long; anteromedian notch deep with a small, rounded lobe at base; dorsal surface in distal 1 / 2 with one pair of long, simple setae near midline and irregular row of three medium, simple setae (Fig.
<figureCitation id="8071F42DAAD2F7128DA692B6A9DD6C12" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">19 c</figureCitation>
). Left mandible (Fig.
<figureCitation id="FE58291595D72611A34326DE9C27601B" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">19 a</figureCitation>
), incisor and kinetodontium fused, incisor with four denticles, kinetodontium with six denticles decreasing in length, prostheca robust, apex with six bluntly denticles and one or two long, spine-like denticles; incisor of right mandible with four denticles, kinetodontium with four denticles, inner margin of innermost denticle with row of small denticles; prostheca robust, apex with comb-like structure, with many denticles apically (Fig.
<figureCitation id="048E8C90B644BCA03BCC7884430CF6B7" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">19 b</figureCitation>
). Maxilla (Fig.
<figureCitation id="F9760D74611517DB2D5F69082D178F05" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">19 e</figureCitation>
), galea-lacinia of with three robust canines, base of lacinia with one row of four long, simple setae and one seta perpendicular to lacinia margin; maxillary palp 2 - segmented, apex of segment II with a small cone-shaped projection. Labium (Fig.
<figureCitation id="FDF17DE86535465657D59A1C4FE4ECD8" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">19 d, f</figureCitation>
), glossae shorter and narrower than paraglossae, paraglossae with three rows of long curved setae distoventrally, dorsal surface on distal 1 / 2 with one longitudinal row of two or three long, spine-like setae near inner margin; labial palp 3 - segmented, segment I longer than segments II and III combined, segment II triangular with small protuberance apico-laterally, dorsal surface of segment II with row of two robust, simple setae near distal margin (Fig.
<figureCitation id="23AF028BA57762D5146A3624A1088220" captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Megabranchiella longusa a left mandible b right mandible c labrum d labium e maxilla f glossae and paraglossae (left: dorsal view; right: ventral view) g labial palp (dorsal view). Red ellipse encloses dorsal setae." figureDoi="10.3897/zookeys.1216.129803.figure19" httpUri="https://binary.pensoft.net/fig/1159416">
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).
<emphasis id="ADB910500C5B0C7895444F07EC5339A0" bold="true">
<emphasis id="E11880A7D92EE8127D671D0A85BFE780" bold="true" italics="true">Thorax</emphasis>
.
</emphasis>
Hindwing pads reduced (Fig.
<figureCitation id="446FC06662B1D564B9AEE49047DC81B2" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Megabranchiella longusa a gills I, III, V, VII b hindwing pad c dorsal margin of femur d villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore . Scale bar: 0.1 mm." figureDoi="10.3897/zookeys.1216.129803.figure20" httpUri="https://binary.pensoft.net/fig/1159417">20 b</figureCitation>
). Forelegs (Fig.
<figureCitation id="BC334443DE0977714E53A814733BE8EA" captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Megabranchiella longusa a abdominal tergites III VI b claw c foreleg d notched scales on paraproct surface e paraproct." figureDoi="10.3897/zookeys.1216.129803.figure21" httpUri="https://binary.pensoft.net/fig/1159418">21 c</figureCitation>
), femur with a row of long, robust, pointed setae along dorsal margin, surface with notched scales anteromedially (Fig.
<figureCitation id="CA750FBA61F85A8760BA944D3D3BF25E" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Megabranchiella longusa a gills I, III, V, VII b hindwing pad c dorsal margin of femur d villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore . Scale bar: 0.1 mm." figureDoi="10.3897/zookeys.1216.129803.figure20" httpUri="https://binary.pensoft.net/fig/1159417">20 c</figureCitation>
), villopore present (Fig.
<figureCitation id="CA889650AE28D18FD0402311ADA053C8" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Megabranchiella longusa a gills I, III, V, VII b hindwing pad c dorsal margin of femur d villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore . Scale bar: 0.1 mm." figureDoi="10.3897/zookeys.1216.129803.figure20" httpUri="https://binary.pensoft.net/fig/1159417">20 d</figureCitation>
); tibia with a row of long, pointed setae and short, blunt spatulate setae, tibio-patellar suture present; ventral margin of tarsus with one row of four robust, spine-like setae; claws hooked (Fig.
<figureCitation id="CF1651548BAF61A00DC6072B3F6582F4" captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Megabranchiella longusa a abdominal tergites III VI b claw c foreleg d notched scales on paraproct surface e paraproct." figureDoi="10.3897/zookeys.1216.129803.figure21" httpUri="https://binary.pensoft.net/fig/1159418">21 b</figureCitation>
) with one row of 13 acute teeth, subapical setae absent. Middle and hind legs similar to foreleg in structure.
<emphasis id="5EEB1F3D5A7D067A1008BCD0A022F0D9" bold="true">
<emphasis id="BF5C39F605B189D1AAF00F737B30D1C6" bold="true" italics="true">Abdomen</emphasis>
.
</emphasis>
Abdominal tergites and sternites with smooth posterior margins (Fig.
<figureCitation id="C6A895ADAB17A379BDDFC7FEC5297DF4" captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Megabranchiella longusa a abdominal tergites III VI b claw c foreleg d notched scales on paraproct surface e paraproct." figureDoi="10.3897/zookeys.1216.129803.figure21" httpUri="https://binary.pensoft.net/fig/1159418">21 a</figureCitation>
); gills present on abdominal tergites I VII, gill I oriented ventrally, extremely enlarged and elongated (Fig.
<figureCitation id="64D5F58FD5AD30444341E8DB6DDD93B7" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Megabranchiella longusa a gills I, III, V, VII b hindwing pad c dorsal margin of femur d villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore . Scale bar: 0.1 mm." figureDoi="10.3897/zookeys.1216.129803.figure20" httpUri="https://binary.pensoft.net/fig/1159417">20 a</figureCitation>
), covering abdominal sternites II
<collectionCode id="C3D02891F0DF4085241B7C0F75FDB8C0" country="Norway" name="Mykotektet, National Veterinary Institute">VI</collectionCode>
(Fig.
<figureCitation id="BA6CF8A0577FD86C974A2E2CA9D43771" captionStart="Figure 18" captionStartId="F18" captionText="Figure 18. Larval habitus of Megabranchiella longusa a, b female larva (dorsal view) c female larva (lateral view) d female larva (ventral view)." figureDoi="10.3897/zookeys.1216.129803.figure18" httpUri="https://binary.pensoft.net/fig/1159415">18 c</figureCitation>
), gills II VII oriented dorsolaterally, elongated oval similar to tongue blade (Figs
<figureCitation id="2C0D56F67A85E4D5D752D17D5C5690E9" captionStart="Figure 18" captionStartId="F18" captionText="Figure 18. Larval habitus of Megabranchiella longusa a, b female larva (dorsal view) c female larva (lateral view) d female larva (ventral view)." figureDoi="10.3897/zookeys.1216.129803.figure18" httpUri="https://binary.pensoft.net/fig/1159415">18 c</figureCitation>
,
<figureCitation id="266032BD738041D3F43EC99C7C94036E" captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Megabranchiella longusa a gills I, III, V, VII b hindwing pad c dorsal margin of femur d villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore . Scale bar: 0.1 mm." figureDoi="10.3897/zookeys.1216.129803.figure20" httpUri="https://binary.pensoft.net/fig/1159417">20 a</figureCitation>
), gill margins with long, fine, hair-like setae, ratio of gill length from I VII = 3.2: 1.7: 1.7: 1.7: 1.5: 1.3: 1.0; paraproct with smooth margin, without marginal spines or spatulate setae, surface with micropores and patch of notch scales (Fig.
<figureCitation id="58845DEFB993571C44F0E82FC7046E78" captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Megabranchiella longusa a abdominal tergites III VI b claw c foreleg d notched scales on paraproct surface e paraproct." figureDoi="10.3897/zookeys.1216.129803.figure21" httpUri="https://binary.pensoft.net/fig/1159418">21 d, e</figureCitation>
).
</paragraph>
<caption id="AACDA1D701131120F01A2F0216F60AA2" ID-DOI="10.3897/zookeys.1216.129803.figure18" ID-arpha="45CD6F96-52B4-58D0-9504-C067C5DB192B" httpUri="https://binary.pensoft.net/fig/1159415" startId="F18">
<paragraph id="56138B978A244D7376267A25BD20B2B9">
<label id="2E55E6558A1CDF946C1ADBDB2B440476">Figure 18.</label>
</paragraph>
<paragraph id="6DA27222B03B9B0C740EC3AE948C8E5A">
Larval habitus of
<taxonomicName id="26FC43E140A2405136DB0D0D23D66026" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="6C4CD9DB91F8307FB9F76A185564788E" italics="true">Megabranchiella longusa</emphasis>
</taxonomicName>
<emphasis id="48096BAB4DE061C4A52188303ADCDBF0" bold="true">a, b</emphasis>
female larva (dorsal view)
<emphasis id="3BEDA483D3BB6EB20FA4F8F84B94835E" bold="true">c</emphasis>
female larva (lateral view)
<emphasis id="834654248390BF5C49E91E23BB8FA2CF" bold="true">d</emphasis>
female larva (ventral view).
</paragraph>
</caption>
<caption id="F2AAAD2F06C8BC9247D4B2A778AF3B0B" ID-DOI="10.3897/zookeys.1216.129803.figure19" ID-arpha="BA9B9430-CD76-57BC-A6EC-DE460E2C1500" httpUri="https://binary.pensoft.net/fig/1159416" startId="F19">
<paragraph id="B0BE2104FAAA92EA5DB4706EEB97631D">
<label id="302674838E5570E7CD4CF23D25CD7C91">Figure 19.</label>
</paragraph>
<paragraph id="B92D7523CBEDC9B3557A9102034F19EF">
<taxonomicName id="EEEF3B5F0A2691CE34B52CA0D36D442A" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="40332B99880FAC0C5BC9F9A500D977F5" italics="true">Megabranchiella longusa</emphasis>
</taxonomicName>
<emphasis id="5F29580F36ADFB04455B05A1EED2A4EC" bold="true">a</emphasis>
left mandible
<emphasis id="912AC77CCB1856F9C758A414D747DA80" bold="true">b</emphasis>
right mandible
<emphasis id="C69CE3DE6FCE9DD9BA6386BD4BC67308" bold="true">c</emphasis>
labrum
<emphasis id="250F219E8AC3C077F8438192A01B4407" bold="true">d</emphasis>
labium
<emphasis id="426C1A42A5002746848E0790137C7EEE" bold="true">e</emphasis>
maxilla
<emphasis id="7E55930DE59C17722FD4670A1EB52188" bold="true">f</emphasis>
glossae and paraglossae (left: dorsal view; right: ventral view)
<emphasis id="4F7DE117F905862A7953B8CD0428FA1A" bold="true">g</emphasis>
labial palp (dorsal view). Red ellipse encloses dorsal setae.
</paragraph>
</caption>
<caption id="DB51F5D50D8869807C3CACEC9DE93586" ID-DOI="10.3897/zookeys.1216.129803.figure20" ID-arpha="5854585F-F87C-53FC-878C-6A35D138A87C" httpUri="https://binary.pensoft.net/fig/1159417" startId="F20">
<paragraph id="A480D7B99F4C0C5132CB1BFE724444A0">
<label id="8E558174F558E0DF368BC3426E63FA80">Figure 20.</label>
</paragraph>
<paragraph id="4BEF928DF4EDECE52FEEB3281E81DED0">
<taxonomicName id="AA78F56B922B67784E2019CDE72454E5" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="42D803E6FCF8A96D78E653BFE422950F" italics="true">Megabranchiella longusa</emphasis>
</taxonomicName>
<emphasis id="791EBBE7A83B29AA4A35FA1FA5DA6799" bold="true">a</emphasis>
gills I, III, V, VII
<emphasis id="98154B7252483F39F1FF16DA4F3AF5D1" bold="true">b</emphasis>
hindwing pad
<emphasis id="BF4DD053A6D67B4FF0B2FC5F06106CEE" bold="true">c</emphasis>
dorsal margin of femur
<emphasis id="C6E75CB5A1CA5EF89682558FC2C27C70" bold="true">d</emphasis>
villopore of femur. Red arrow indicates hindwing pad. Red ellipse encloses villopore. Scale bar: 0.1 mm.
</paragraph>
</caption>
<caption id="76E6158FAF30AE30B53F5367D4CDBE6B" ID-DOI="10.3897/zookeys.1216.129803.figure21" ID-arpha="7304CD6A-CCD5-5454-8A35-67CC9F49CA04" httpUri="https://binary.pensoft.net/fig/1159418" startId="F21">
<paragraph id="0FD8762C29E0E4760B3A385B034C148F">
<label id="B4E83266B51FBAE43FC709B5ABF49875">Figure 21.</label>
</paragraph>
<paragraph id="3BD123EF137561246274D217CE2B83AD">
<taxonomicName id="EE65FAF881337DC39A393A82495B642D" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="710D3171E79A62B349DC96F8094D6776" italics="true">Megabranchiella longusa</emphasis>
</taxonomicName>
<emphasis id="EC44281725E2654573CB51A80C13B2FB" bold="true">a</emphasis>
abdominal tergites III VI
<emphasis id="8F59A669A8B22C9488F5B06BEDC185DF" bold="true">b</emphasis>
claw
<emphasis id="69E1F6C4ED272C1BCF16CFC3899BF840" bold="true">c</emphasis>
foreleg
<emphasis id="95E25804E79F8CA366746E6E07AD64BA" bold="true">d</emphasis>
notched scales on paraproct surface
<emphasis id="0DDFC6CC8629DD4C78E352DB93BC8295" bold="true">e</emphasis>
paraproct.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="SECID0EBUAG" type="distribution">
<paragraph id="1E6B16ABB0B82F5B6FE3CA634553E8B4">
<heading id="A3AED72FDF20DCFB64A4FB9EC2B5051E" reason="title">Distribution</heading>
</paragraph>
<paragraph id="9AE782D8DF09D02F21B50369A9A7FD18">
<emphasis id="4CD95DD29D430010FA394463BE1F1E37" bold="true">
(Fig.
<figureCitation id="7F2CA5016D05BDF6B6991B7F17C14628" captionStart="Figure 23" captionStartId="F23" captionText="Figure 23. Distribution map of the genera Branchiobaetis and Megabranchiella in China." figureDoi="10.3897/zookeys.1216.129803.figure23" httpUri="https://binary.pensoft.net/fig/1159420">23</figureCitation>
).
</emphasis>
<collectingCountry id="B0E7C9AF0E3E4D7F531F373D5211D0A1" name="Thailand">Thailand</collectingCountry>
(
<collectingRegion id="44A763AC910C02507575728076BD74BA" country="Thailand" name="Chiang Mai">Chiang Mai</collectingRegion>
and
<collectingRegion id="97E3BA663F13DA622F1135A27B5A09FF" country="Thailand" name="Nan">Nan</collectingRegion>
Provinces) and
<collectingCountry id="F12BE352A3C22E58218FEADBF8E345AD" name="China">China</collectingCountry>
(
<collectingRegion id="4AFEACD527A4101EFCD73A2CAF0446A2" country="China" name="Yunnan">Yunnan Province</collectingRegion>
).
</paragraph>
</subSubSection>
<subSubSection id="SECID0EOUAG" type="Larval habitat">
<paragraph id="41979C42D39C6BC4C8074BCADF703844">
<heading id="E127F249711ADB065C6036107F75847A" reason="title">Larval habitat</heading>
</paragraph>
<paragraph id="410012F8E07069C7FC9CE35BFA53A42E">
<emphasis id="1BB76678004CFEE48EF86E95C25AFB24" bold="true">
(Fig.
<figureCitation id="260B9A79507CF7A0BE2E7451937DE931" captionStart="Figure 22" captionStartId="F22" captionText="Figure 22. Representative sites of larval habitat a Branchiobaetis megasinus sp. nov. Upper reaches of Liuxihe River, Conghua, Guangdong b Branchiobaetis borealis sp. nov. Lapu River, Weixi, Yunnan c Megabranchiella longusa Phlai-ngam &amp; Tungpairojwong. Bajiao River, Lushui, Yunnan." figureDoi="10.3897/zookeys.1216.129803.figure22" httpUri="https://binary.pensoft.net/fig/1159419">22 c</figureCitation>
).
</emphasis>
The species was collected in a swift, unshaded stream with cobble substrate at an altitude of ~
<quantity id="C98C906E2CC228F8F7A0C764F6FAC9C5" metricMagnitude="3" metricUnit="m" metricValue="1.1" unit="m" value="1100.0">1100 m</quantity>
in
<collectingRegion id="D5FE65065D244B0360AF8AC6AD7F82CF" country="China" name="Yunnan">Yunnan</collectingRegion>
,
<collectingCountry id="AEBB04DE6A5E74559950367F34FA467C" name="China">China</collectingCountry>
.
</paragraph>
<caption id="E734F55CDE5C3F93E061107AF4D6B391" ID-DOI="10.3897/zookeys.1216.129803.figure22" ID-arpha="069E6CE2-7646-519F-A816-5DD91FA3765A" httpUri="https://binary.pensoft.net/fig/1159419" startId="F22">
<paragraph id="22424D684C246870063804366CE5FEBB">
<label id="56F0577C2836F1B8953E961A4B6EB429">Figure 22.</label>
</paragraph>
<paragraph id="9530F0EF00A4D2336BE596C9D1485074">
Representative sites of larval habitat
<emphasis id="9E59D429681BE9F1864CA5822608613D" bold="true">a</emphasis>
<taxonomicName id="53E8F674F9247F95764FC867D6F7D2D9" authorityName="Tong &amp; Zhou &amp; Wu" authorityYear="2024" class="Insecta" family="Baetidae" genus="Branchiobaetis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="megasinus" status="sp. nov.">
<emphasis id="70093FEF7A5D702CE8AFB13DD549B26B" italics="true">Branchiobaetis megasinus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="B2EB46A2A203332CD605DB5D703C9FCC" rank="species">sp. nov.</taxonomicNameLabel>
Upper reaches of Liuxihe River, Conghua, Guangdong
<emphasis id="6FC1FEAD3A1F9E671E21C3DE8537F8DD" bold="true">b</emphasis>
<taxonomicName id="8682E8A99D88854E8DD3EB8FD0A5B673" authorityName="Tong &amp; Zhou &amp; Wu" authorityYear="2024" class="Insecta" family="Baetidae" genus="Branchiobaetis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="borealis" status="sp. nov.">
<emphasis id="35ACC811E9370B8F37772F48BE2F354A" italics="true">Branchiobaetis borealis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="4E36D61A7AD3D2EA70D81924F3954F44" rank="species">sp. nov.</taxonomicNameLabel>
Lapu River, Weixi, Yunnan
<emphasis id="E651E44727BA78DE09CCD8C3B69DAC25" bold="true">c</emphasis>
<taxonomicName id="4BD3CDD47C8164096BFE3F413B49CAFE" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="C5B8ECEA8D24625C75CF0391EC11A3A4" italics="true">Megabranchiella longusa</emphasis>
</taxonomicName>
Phlai-ngam &amp; Tungpairojwong. Bajiao River, Lushui, Yunnan.
</paragraph>
</caption>
<caption id="D890B696261A07664BC855C7C4B03879" ID-DOI="10.3897/zookeys.1216.129803.figure23" ID-arpha="C34625C6-D9A3-569C-AB7C-7631EE34DA9A" httpUri="https://binary.pensoft.net/fig/1159420" startId="F23">
<paragraph id="029AB93F551702304BAF318F2AF8C354">
<label id="11FEFD0F79D7A0789BAE88E7CF537B65">Figure 23.</label>
</paragraph>
<paragraph id="41ACD2DA6D0A685C3D36E58977B0DBED">
Distribution map of the genera
<taxonomicName id="40BCC01ACE8A75F0AC966969F1FC9631" authorityName="Kaltenbach, Kluge &amp; Gattolliat" authorityYear="2022" class="Insecta" family="Baetidae" genus="Branchiobaetis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="genus">
<emphasis id="F7CEB6CB77C4E259A6F16815AD7BD47F" italics="true">Branchiobaetis</emphasis>
</taxonomicName>
and
<taxonomicName id="83AA10445D6D18EF654518D321A95358" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="genus">
<emphasis id="25B08E864997EE2A03B447282E04C450" italics="true">Megabranchiella</emphasis>
</taxonomicName>
in China.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="SECID0EKXAG" type="remarks">
<paragraph id="9E6AC7DF3558D9D69CF6D4819771AF32">
<heading id="A17DE4CD249073E813BF4B35EC5387F5" reason="title">Remarks.</heading>
</paragraph>
<paragraph id="2BB555D54DCFF9F09D5C21ABE95C5F3D">
Geographically, this record represents the farthest distribution north of the genus
<taxonomicName id="DEDBCE290659670DAECD997C32BB37CC" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" phylum="Arthropoda" rank="genus">
<emphasis id="43E80842E6DF0A5E45BDBB2047FB9CFA" italics="true">Megabranchiella</emphasis>
</taxonomicName>
so far. We expect that more species of the genus will be discovered with the expansion of the investigation range in
<collectingCountry id="E1F7B6371B744BB76193BA94B64E6B07" name="China">China</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>