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Genus
<taxonomicName LSID="https://zoobank.org/A9F66B30-FEDB-46FA-B8E7-D6A338E10D63" authority="Phlai-ngam &amp; Tungpairojwong" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" genus="Megabranchiella" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Megabranchiella" order="Ephemeroptera" pageId="0" pageNumber="1" rank="genus" status="gen. nov.">Megabranchiella Phlai-ngam &amp; Tungpairojwong</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="1">gen. nov.</taxonomicNameLabel>
<taxonomicName id="44EC80DC2A1AC4D452D8F68C10E7BE7A" LSID="https://zoobank.org/A9F66B30-FEDB-46FA-B8E7-D6A338E10D63" authority="Phlai-ngam &amp; Tungpairojwong" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus" status="gen. nov.">Megabranchiella Phlai-ngam &amp; Tungpairojwong</taxonomicName>
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<paragraph pageId="0" pageNumber="1">Type species.</paragraph>
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<taxonomicName authorityName="Phlai-ngam &amp; 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>
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<paragraph id="2FD88AA51E536C61452E94B3D0396004" pageId="0" pageNumber="1">Type species.</paragraph>
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<taxonomicName id="047C8E7436480EA7E4528751C98D5ADD" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
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sp. nov., by present designation.
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<paragraph pageId="0" pageNumber="1">Included species.</paragraph>
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<taxonomicName authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" genus="Megabranchiella" kingdom="Animalia" lsidName="Megabranchiella longusa" order="Ephemeroptera" pageId="0" pageNumber="1" rank="species" species="longusa">
<emphasis italics="true" pageId="0" pageNumber="1">Megabranchiella longusa</emphasis>
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<paragraph id="592DB195FE50ACAA869A27C9DE3941CE" pageId="0" pageNumber="1">Included species.</paragraph>
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<taxonomicName id="550E99B4C4A9BCEBCF55BC0989ACD09C" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella longusa" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="longusa">
<emphasis id="E45A6447F2AA5712C2D7EAFF0260B717" italics="true" pageId="0" pageNumber="1">Megabranchiella longusa</emphasis>
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sp. nov.
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<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Phlai-ngam &amp; 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>
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<taxonomicName id="E6C3560E5AF26681A34CEF5C51757221" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="4EB4B235FD5D53A7FCA666BBCD4B9E88" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
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sp. nov.
</paragraph>
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<subSubSection pageId="0" pageNumber="1" type="diagnosis">
<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
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<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Larva</emphasis>
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<paragraph id="235043A94BED2B98018EFE8352A9DFDF" pageId="0" pageNumber="1">Diagnosis.</paragraph>
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<emphasis id="75953062EBED87B79243750C4EE4DFB6" bold="true" italics="true" pageId="0" pageNumber="1">Larva</emphasis>
(Figs
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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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). Larval body ventrally flattened (Fig.
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<figureCitation id="BFED01B383513B518E20957CC7283156" 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>
). Margins of head capsule relatively densely covered with fine, long setae. Antenna without process on scape, margins of scape and pedicel densely covered with long, fine, simple setae; flagellum short, covered with scattered long, fine, simple setae. Mouthparts relatively compact. Labrum (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">5A</figureCitation>
<figureCitation id="B8831D09BF7C54D86DB939AA9A775299" 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>
) broadly rounded, dorsally with one central seta and a row of setae reduced in number. Mandibles with smooth margin between mola and prostheca, without setae, right and left prostheca comb-shaped. Maxilla (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>
<figureCitation id="538C2AEE0D096B6F7705543A7B193AC9" 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>
) with 2-segmented palp, with a small tip at apex. Labium compact (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>
<figureCitation id="23AD5B5BB6FAC9989AB276C413A0E64E" 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 and paraglossa covered with stout setae, labial palp 3-segmented, terminal segment rounded. Thorax broad; forewing pad broad, large, divergent; hindwing pad highly reduced. Femur with a regular row of long, stout, setae on dorsal margin, surface covered with scattered tiny spine-like setae anteromedially, ventral femoral patch present. Tibia with long feathered setae on dorsal margin, covered with scattered fine setae and short, pectinate setae. Tarsus without preapical setae, tarsal claw with one row of denticles. Abdominal tergites covered with scattered long, fine setae; posterior margin smooth. Abdominal gills segment 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>
<figureCitation id="6EF5668C2124FABFAB82B0587F32BCC8" 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>
) ventrally oriented, enlarge covering abdominal sternites II to V; gill margin smooth without setae. Abdominal gills segment II-VII dorsolaterally oriented, gill margins with densely covered with long fine setae. Gonostily under larval cuticule
<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 id="346D3237681E5875532712BD59F35F8B" 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 id="5F2027F6D71ECC3AF55E2311C5F7D883" italics="true" pageId="0" pageNumber="1">Acentrella</emphasis>
</taxonomicName>
-type (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>
<figureCitation id="25C6B8A95358B442BA28D3497FED7187" 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>
). Paraproct surface with notched scales and long setae; distal margin smooth without prolongation. Caudal filaments with swimming setae; median filament reduced to shorter than 0.4
<normalizedToken originalValue="×">x</normalizedToken>
<normalizedToken id="0329E05257E09BFB6B05C5A6A8A16288" originalValue="×">x</normalizedToken>
of cerci length.
</paragraph>
<caption doi="10.3897/zookeys.1125.90802.figure1" httpUri="https://binary.pensoft.net/fig/758195" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="7E35CA8A42E5DFE1E9E91C836D72C5C8" doi="10.3897/zookeys.1125.90802.figure1" httpUri="https://binary.pensoft.net/fig/758195" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
<paragraph id="0C8C3C473A98C67A7C723C1F3CD06F37" pageId="0" pageNumber="1">
<emphasis id="DA8FC7AF42FE48C456C0548E5E271C43" bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
<taxonomicName id="675FB9B1BDCEC8C4D2EF2483523C9B80" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="EA671248FD3EE6B9C00C4571CC67159B" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., male larva
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="D49E69933FA704268351AF766A1615B3" bold="true" pageId="0" pageNumber="1">A</emphasis>
early larval stage
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="974E6139BC15D9C9419F467C84500722" bold="true" pageId="0" pageNumber="1">B</emphasis>
last larval instar.
</paragraph>
</caption>
<caption doi="10.3897/zookeys.1125.90802.figure2" httpUri="https://binary.pensoft.net/fig/758196" pageId="0" pageNumber="1" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 2.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="4781CB1CC8649042CA335722D52CF27E" doi="10.3897/zookeys.1125.90802.figure2" httpUri="https://binary.pensoft.net/fig/758196" pageId="0" pageNumber="1" start="Figure 2" startId="F2">
<paragraph id="37F4BEACD86BDF70FFD30093F2EED96C" pageId="0" pageNumber="1">
<emphasis id="8DC0A90D1A079921F537108DB2176A3E" bold="true" pageId="0" pageNumber="1">Figure 2.</emphasis>
<taxonomicName id="3CCC4AD8C69B71DF42797FC73BB8DC38" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="2D3A50DCFB955E76A14FA324F3872F2E" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., female larva.
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="7C441C3BE9ABDBB4F2FF8BB2C33D4762" bold="true" pageId="0" pageNumber="1">A</emphasis>
early larval stage
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="95F3939D6FA24C467EA2B82ABB475F81" bold="true" pageId="0" pageNumber="1">B</emphasis>
last larval instar.
</paragraph>
</caption>
<caption doi="10.3897/zookeys.1125.90802.figure3" httpUri="https://binary.pensoft.net/fig/758197" pageId="0" pageNumber="1" start="Figure 3" startId="F3">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 3.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="9FE1CDBEC37530F02A2EBEC62E679ED4" doi="10.3897/zookeys.1125.90802.figure3" httpUri="https://binary.pensoft.net/fig/758197" pageId="0" pageNumber="1" start="Figure 3" startId="F3">
<paragraph id="54C4178A459444B55C02AB1C35FEB3A0" pageId="0" pageNumber="1">
<emphasis id="E3DD8244B04C1D1CF913C7CFE333D27D" bold="true" pageId="0" pageNumber="1">Figure 3.</emphasis>
<taxonomicName id="10BB8DBA80448275B1A2288B63AD177A" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="5E6F6C74218EFE3CB4C9B1AF216F243C" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., ventral view
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="481A7302A5E9237DCAB84ADAA4F51659" bold="true" pageId="0" pageNumber="1">A</emphasis>
early larval stage
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="8723946B6D551E1745F2BF8DAE2F95B4" bold="true" pageId="0" pageNumber="1">B</emphasis>
last larval instar. (arrow: gills I).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="winged stage">
<paragraph pageId="0" pageNumber="1">Winged stage.</paragraph>
<paragraph pageId="0" pageNumber="1">Unknown.</paragraph>
<subSubSection id="32FFCDE7CBEA7DDD862CDF519A478ECD" pageId="0" pageNumber="1" type="winged stage">
<paragraph id="0B907F8C8D3C27A6912C8A2668ED5C92" pageId="0" pageNumber="1">Winged stage.</paragraph>
<paragraph id="F7EC09FD535871E31AF6B84A4D52005E" 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">
<taxonomicName authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" genus="Megabranchiella" kingdom="Animalia" lsidName="Megabranchiella" order="Ephemeroptera" pageId="0" pageNumber="1" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Megabranchiella</emphasis>
<subSubSection id="02DB16E5AED04B32BEA071ABD9ED0BF0" pageId="0" pageNumber="1" type="etymology">
<paragraph id="9B0BEEB32372099D6539C3FA04D42EAF" pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph id="90C7662244D9CC01DFBA3E657FC32D48" pageId="0" pageNumber="1">
<taxonomicName id="6030B3EF73105EF8DAD2AF3E2BDB656F" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="F353111B983C4C5DA53C9143456F1404" italics="true" pageId="0" pageNumber="1">Megabranchiella</emphasis>
</taxonomicName>
is a combination of
<emphasis italics="true" pageId="0" pageNumber="1">Mega</emphasis>
<emphasis id="E3EF3C673162FB6B9526E9D1BAFE380F" italics="true" pageId="0" pageNumber="1">Mega</emphasis>
- in reference to the enlarged, -
<emphasis italics="true" pageId="0" pageNumber="1">branchio</emphasis>
<emphasis id="9E84D9F97E575AEB5FE3E938B76EC7CA" italics="true" pageId="0" pageNumber="1">branchio</emphasis>
- in reference to gills and -
<emphasis italics="true" pageId="0" pageNumber="1">iella</emphasis>
<emphasis id="C372A5FA0A9DAD72C0CF58383B7CD1EA" italics="true" pageId="0" pageNumber="1">iella</emphasis>
in reference to the genera
<taxonomicName authorityName="Waltz &amp; McCafferty" authorityYear="1987" class="Insecta" family="Baetidae" genus="Liebebiella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Liebebiella" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Liebebiella</emphasis>
<taxonomicName id="EC21B5C1177AF6DF57C0C98331F936FE" authorityName="Waltz &amp; McCafferty" authorityYear="1987" class="Insecta" family="Baetidae" genus="Liebebiella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Liebebiella" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="41BD674EAC83FBF4D0549FE14AE160D6" italics="true" pageId="0" pageNumber="1">Liebebiella</emphasis>
</taxonomicName>
and
<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 id="DB109BB49CFCE521CE1D46593C0316CB" 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 id="0085084C17128BBB0CBDE9EEEDE2716E" italics="true" pageId="0" pageNumber="1">Acentrella</emphasis>
</taxonomicName>
which are most certainly the closely related genera. The &quot;
<taxonomicName authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" genus="Megabranchiella" kingdom="Animalia" lsidName="Megabranchiella" order="Ephemeroptera" pageId="0" pageNumber="1" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Megabranchiella</emphasis>
<taxonomicName id="3375F928D2FFF73A204959E519B3F532" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="5BD9996842E6C077E095C508932FC649" italics="true" pageId="0" pageNumber="1">Megabranchiella</emphasis>
</taxonomicName>
&quot; refers to the remarkable enlarged abdominal gill segment I of baetid mayfly. The gender is feminine.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Larva</emphasis>
<subSubSection id="5DC8E76318C697D361CBBD3C855327AA" pageId="0" pageNumber="1" type="description">
<paragraph id="6F255EF37C6E5E930F80788F8512C661" pageId="0" pageNumber="1">Description.</paragraph>
<paragraph id="0A0518FAF2C961DB335E1D96542AB576" pageId="0" pageNumber="1">
<emphasis id="093C410CA0AE6BD8F1303120040AE78A" bold="true" italics="true" pageId="0" pageNumber="1">Larva</emphasis>
(Figs
<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>
<figureCitation id="A82E1906E39811F6CA74987A779EDF89" 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>
-
<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>
<figureCitation id="3E44E6809E8F2347A5D5DF3E6717BC5A" 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>
).
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Body</emphasis>
<emphasis id="65E82E36C9375BB0C8C691371C393557" bold="true" italics="true" pageId="0" pageNumber="1">Body</emphasis>
Relatively short and ventrally flattened (Fig.
<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>
<figureCitation id="FED2037A4C85729A21A3EB3F2C5F7B3B" 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>
), covered with scattered long, fine setae; head and thorax in lateral view rounded.
</paragraph>
<caption doi="10.3897/zookeys.1125.90802.figure4" httpUri="https://binary.pensoft.net/fig/758198" pageId="0" pageNumber="1" start="Figure 4" startId="F4">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 4.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="FF542BC3E20EFEED860DB94F5075CBA4" doi="10.3897/zookeys.1125.90802.figure4" httpUri="https://binary.pensoft.net/fig/758198" pageId="0" pageNumber="1" start="Figure 4" startId="F4">
<paragraph id="C21C77F505070F2512285FA4EFE245B8" pageId="0" pageNumber="1">
<emphasis id="A2B7E2E37DA7B7A8C446E00EF9F81D8D" bold="true" pageId="0" pageNumber="1">Figure 4.</emphasis>
<taxonomicName id="1BE511390766B04BA12404E5A78E33FF" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="A4A58A8CA97C5666B98F5DBBC7A47256" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., larval habitus
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="7A3CEAC65D968C29037A77C26B3E3DBB" bold="true" pageId="0" pageNumber="1">A</emphasis>
dorsal view
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="73FB16FC7E3EA8FE1E9C963DD3BBFA0C" bold="true" pageId="0" pageNumber="1">B</emphasis>
lateral view
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="01DF15810351B68A32169B78ABFDD3E0" bold="true" pageId="0" pageNumber="1">C</emphasis>
ventral view. Scale bars: 0.5 mm.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Head</emphasis>
<paragraph id="4B9F6460A330E361123C25F1E8964823" pageId="0" pageNumber="1">
<emphasis id="95820DEC885A9B9196D8DDA75A467BE1" bold="true" pageId="0" pageNumber="1">
<emphasis id="D349DEEA9761B82B4F17A4D360A77A07" italics="true" pageId="0" pageNumber="1">Head</emphasis>
.
<emphasis italics="true" pageId="0" pageNumber="1">Antenna</emphasis>
<emphasis id="EAAA71B1F9F4D187BC5D77D102A81F69" italics="true" pageId="0" pageNumber="1">Antenna</emphasis>
.
</emphasis>
ca. 2
<normalizedToken originalValue="×">x</normalizedToken>
<normalizedToken id="0337243A54D0EC38B8DDAE9A39B3824A" originalValue="×">x</normalizedToken>
as long as head length; scape, pedicel and flagellum without process, without scale bases and spines, covered with scattered long, fine setae; flagellum covered with scattered long, fine setae in each segment.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Labrum</emphasis>
<paragraph id="C91AFA80D3FFCFC062F30547421DCE43" pageId="0" pageNumber="1">
<emphasis id="590B24E0CA5F0A292BC15EC625DC4B77" bold="true" italics="true" pageId="0" pageNumber="1">Labrum</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">5A</figureCitation>
<figureCitation id="5E3192166695D71678421DCE4DA7BBD9" 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>
). Broadly rounded; wider than long; dorsal surface with one central seta and a row of setae reduced in number, long scattered simple setae along dorsal margin, scattered simple, hairlike setae; distal margin with anteromedian notch shallow, disterolateral margin with long feathered setae; distomedial margin with a row of small, short, feathered setae.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Right mandible</emphasis>
<paragraph id="38385EDAB51054B3C5BCD3A0D674571B" pageId="0" pageNumber="1">
<emphasis id="9C667E9302F4A54FB664110C62E9FAF9" bold="true" italics="true" pageId="0" pageNumber="1">Right mandible</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">5B-D</figureCitation>
<figureCitation id="ADED574D1FC7DCCE479B340AD5C1D2FE" 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-D</figureCitation>
). Canine with almost completely fused outer and inner incisors, incisors well developed, apically rounded; prostheca robust, apically with small denticles and comb-shaped structure; edge between mola and prostheca smooth, without setae; molar area with numerous small, apically rounded teeth; apex of mola with tuft of spines like setae.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Left mandible</emphasis>
<paragraph id="91A10992EB24D174C964C3AFEC3C38D2" pageId="0" pageNumber="1">
<emphasis id="656D1BEB86B851302379F98568E48D49" bold="true" italics="true" pageId="0" pageNumber="1">Left mandible</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">5E-G</figureCitation>
<figureCitation id="54AE4CBEC2227073075EE163B10B3D3A" 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-G</figureCitation>
). Canine with almost completely fused outer and inner incisors, well developed incisors, apically rounded; prostheca robust, apically with small denticles; margin between mola and prostheca smooth, without setae; molar area with numerous small, round teeth, apex of mola with tuft of thin setae.
</paragraph>
<caption doi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1" start="Figure 5" startId="F5">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 5.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="B29780AC4F47DCC435B0C1E49990934F" doi="10.3897/zookeys.1125.90802.figure5" httpUri="https://binary.pensoft.net/fig/758199" pageId="0" pageNumber="1" start="Figure 5" startId="F5">
<paragraph id="837160B975B1FF94D93DCB30F69EC62F" pageId="0" pageNumber="1">
<emphasis id="C31C450B4C7EF3A67DBF659FBCB8C2C2" bold="true" pageId="0" pageNumber="1">Figure 5.</emphasis>
<taxonomicName id="3C455AF9AD464EAC67508638D7C96BF9" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="F96A88070C6A5E6CAD92F9037F27F59C" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., larval morphology
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="430E8562F4AB3D434848F3696E8AA2FE" bold="true" pageId="0" pageNumber="1">A</emphasis>
labrum
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="2752BF391AEFA51F1791877B8C75834F" bold="true" pageId="0" pageNumber="1">B</emphasis>
right mandible
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="E337CE5ABACB7FA499D86C9BA31B70B7" bold="true" pageId="0" pageNumber="1">C</emphasis>
right incisor
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="283493DB0264B459324FC064E54C7CF0" bold="true" pageId="0" pageNumber="1">D</emphasis>
right prostheca
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="FD558114F65F3E195D8334740ABBB61E" bold="true" pageId="0" pageNumber="1">E</emphasis>
left mandible
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
<emphasis id="19728151A89205CD6C0F9599C06858FF" bold="true" pageId="0" pageNumber="1">F</emphasis>
left incisor
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
<emphasis id="A994FB6AD47B84933611F17576D97C59" bold="true" pageId="0" pageNumber="1">G</emphasis>
left prostheca
<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
<emphasis id="25B7B430A903B92EFCCF8819EDD24730" bold="true" pageId="0" pageNumber="1">H</emphasis>
maxilla
<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
<emphasis id="0E95CDD4198DC2242C341E6E53979CB4" bold="true" pageId="0" pageNumber="1">I</emphasis>
apex of galea-lacinia
<emphasis bold="true" pageId="0" pageNumber="1">J</emphasis>
<emphasis id="6F3BBBA9AA589AD472275565CBF2E9E5" bold="true" pageId="0" pageNumber="1">J</emphasis>
denti-seta
<emphasis bold="true" pageId="0" pageNumber="1">K</emphasis>
<emphasis id="C589C4FD4EB00F6DADE0614BB9896A63" bold="true" pageId="0" pageNumber="1">K</emphasis>
labium
<emphasis bold="true" pageId="0" pageNumber="1">L</emphasis>
<emphasis id="84DF9CE79974F8988DBADBBF323BCAF3" bold="true" pageId="0" pageNumber="1">L</emphasis>
long, robust, pectinate setae
<emphasis bold="true" pageId="0" pageNumber="1">M</emphasis>
<emphasis id="BE94A83632EE35284E2472159D8F8992" bold="true" pageId="0" pageNumber="1">M</emphasis>
hypopharynx.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Maxilla</emphasis>
<paragraph id="9C0DC5EB4109A543F0B5E1309A75D442" pageId="0" pageNumber="1">
<emphasis id="3E71D1ED31589FBC6E870729EFD4F0CD" 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>
<figureCitation id="CE5A0713DD0EACF13AEB7BA3BAF151BB" 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>
<figureCitation id="AA26E8AA956FD1DA974ACD16F9E2FE15" 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 setae 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>
<figureCitation id="37333270B42300ADA0F024FC9439662A" 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; innermost denticles with a row of robust, simple setae; medially with one seta and four short to long, simple setae. Short, stocky, 2-segmented maxillary palp, with scattered small setae; distal segment with distinct, small tip.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Labium</emphasis>
<paragraph id="4C53B078E217FF132C7A8F1D851149DF" pageId="0" pageNumber="1">
<emphasis id="E0FFE8F7AA6CCDCC2BDF8CDDEE22DE7A" 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>
<figureCitation id="2F90DC013D2A400BEE1A04211DD5EE47" 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>
). Short and compact; glossa basally broad, narrower toward apex, slightly shorter than paraglossa; paraglossa sub-rectangular, broader than glossa, apically curved inward, apical margin with three rows of medium stout setae; labial palp 3-segmented, segment II with small distolateral expansion, segment III rounded, ventral surface covered with scattered setae.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Hypopharynx</emphasis>
<paragraph id="9F8081085E02382225811AC26BEBC153" pageId="0" pageNumber="1">
<emphasis id="B5829E8810A07403E109441624E6B482" 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>
<figureCitation id="5678624A588AAA3D649212E89025FBC2" 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, long, 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>
<paragraph id="0E33E0B965F56D323DB9E6C4A284AB92" pageId="0" pageNumber="1">
<emphasis id="B19A91EF8C78A255C7132042FCA01004" bold="true" pageId="0" pageNumber="1">
<emphasis id="36F8C029B00D3273F43D0340D15299F8" italics="true" pageId="0" pageNumber="1">Thorax</emphasis>
.
<emphasis italics="true" pageId="0" pageNumber="1">Forewing pads</emphasis>
<emphasis id="6D5C6D11290C4B39FEDF8F2613C1A6A6" italics="true" pageId="0" pageNumber="1">Forewing pads</emphasis>
.
</emphasis>
Highly developed related to body size; clearly divergent.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Hindwing pads</emphasis>
<paragraph id="5DB02BD94A5CF04CD8397FF128DC3BEE" pageId="0" pageNumber="1">
<emphasis id="3D850B477F1E3571FE3EE1F60F9315CB" bold="true" pageId="0" pageNumber="1">
<emphasis id="345BD50AC9E0BE26F0322A5E0A05AEF0" italics="true" pageId="0" pageNumber="1">Hindwing pads</emphasis>
.
</emphasis>
Highly reduced.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Forelegs</emphasis>
<paragraph id="BC7D6B1CD1C474844AF73DB718275803" pageId="0" pageNumber="1">
<emphasis id="B8C8B6FB143C264FA98BED0F62ACC1F1" bold="true" italics="true" pageId="0" pageNumber="1">Forelegs</emphasis>
(Figs
<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>
<figureCitation id="85AA092D59F64E5DDE351CF8B4A8F1E8" 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>
,
<figureCitation captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Megabranchiella longusa 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.figure12" httpUri="https://binary.pensoft.net/fig/758206" pageId="0" pageNumber="1">12A</figureCitation>
<figureCitation id="9843022358B3C82AB2B0AF0E7E774A89" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Megabranchiella longusa 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.figure12" httpUri="https://binary.pensoft.net/fig/758206" pageId="0" pageNumber="1">12A</figureCitation>
). Dorsal margin of femur with a row of long, simple setae; short, stout, lanceolate, laterally pectinate setae and scattered fine hair-like setae along dorsal and ventral margins; femora patch present; dorsal surface with scattered tiny spine-like setae anteromedially; scattered long translucent scales present; dorsal margin of tibia with a row of long, simple setae; several broad, lanceolate, laterally pectinate setae and scattered hair-like setae along dorsal and ventral margins, patella-tibial suture present; tarsus dorsally with a row of spine-like simple setae, ventral margin bare or with a row of spine-like simple setae, surface covered with scattered fine hair-like setae; tarsal claw with one row of denticles increasing in length toward apex, subapical setae absent.
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Midlegs and hindlegs</emphasis>
<emphasis id="CD6D92235A193723DC5C3AA0186AE331" bold="true" pageId="0" pageNumber="1">
<emphasis id="90698B50010FD64CB39141D00F22F7E8" italics="true" pageId="0" pageNumber="1">Midlegs and hindlegs</emphasis>
.
</emphasis>
As forelegs.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Abdomen</emphasis>
<paragraph id="F7CF5F8E10372131F91A7BED6C4234C0" pageId="0" pageNumber="1">
<emphasis id="F788BBB3826B48B8E53290BE4D386025" 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>
<figureCitation id="DCEF3598ACA4F46380A548BBD5FB88BB" 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 id="CB0EE1B6003E3D7CCAC46BE956F6E98D" bold="true" pageId="0" pageNumber="1">
<emphasis id="9AF16F1B26AFEE33E16B8C016D18CC93" italics="true" pageId="0" pageNumber="1">Tergites</emphasis>
.
</emphasis>
Posterior margin smooth, posterior marginal spines reduced to absent, tergal surface with scattered stout, fine, hair-like setae and scattered long translucent scales distally. Gonosyli under larval cuticule
<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 id="330620CFD0E261E6719963CF260C21FE" 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 id="F3333FC3A39F7C88831847A53642CA27" italics="true" pageId="0" pageNumber="1">Acentrella</emphasis>
</taxonomicName>
-type (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>
<figureCitation id="453CE8567E164019217C3145EEAE1502" 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>
).
</paragraph>
<caption doi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1" start="Figure 6" startId="F6">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 6.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="FBE703EF84B5B05953C552770BDA32FF" doi="10.3897/zookeys.1125.90802.figure6" httpUri="https://binary.pensoft.net/fig/758200" pageId="0" pageNumber="1" start="Figure 6" startId="F6">
<paragraph id="A7FDCDED71BA083B73599CF76E07F7FE" pageId="0" pageNumber="1">
<emphasis id="782273543BC02B15116C9B748BE79D84" bold="true" pageId="0" pageNumber="1">Figure 6.</emphasis>
<taxonomicName id="6FC934D7297980754E29510FE2143806" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="84934BF5E8AA7453673270B55940E4A6" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., larval morphology
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="8CDFB809AD919337A9721FC2827E3657" bold="true" pageId="0" pageNumber="1">A</emphasis>
dorsal margin of femur
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="76B9542C89163ECB165BE502FCAD40E6" bold="true" pageId="0" pageNumber="1">B</emphasis>
dorsal view of abdomen
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="260B5C4923B46395EA6360A306282697" bold="true" pageId="0" pageNumber="1">C</emphasis>
enlargement of abdominal tergites V-VII
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="CDDB7DCCA4AADDF3F8EC5524A15AF105" bold="true" pageId="0" pageNumber="1">D</emphasis>
ventral view of abdominal gills I (arrow)
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="A318A20C33A82079A2AC0BAE6F4B5327" bold="true" pageId="0" pageNumber="1">E</emphasis>
ventral view of gonostyli. Scale bars: 0.15 mm (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="A27CFB0366928A38F616D763EFD9136D" bold="true" pageId="0" pageNumber="1">A</emphasis>
); 0.5 mm (
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="FE541933E702214A6D94788F9CDCF639" bold="true" pageId="0" pageNumber="1">B</emphasis>
); 0.25 mm (
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="FD0E3813E189761A8F8DB9E932857ACB" bold="true" pageId="0" pageNumber="1">C</emphasis>
); 0.4 mm (
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="999871CB3327C92D80531918BD7A25FF" bold="true" pageId="0" pageNumber="1">D</emphasis>
); 0.3 mm (
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="86E0360AB39F4A5CAA7F6B0AD5706770" bold="true" pageId="0" pageNumber="1">E</emphasis>
).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Gills</emphasis>
<paragraph id="501533366D726DB9FE6233F1C13A5EE7" pageId="0" pageNumber="1">
<emphasis id="2F68DC530EBBDFA5ED7FD9E81FA6E91D" bold="true" pageId="0" pageNumber="1">
<emphasis id="DD6CD952604696BE3345F08116946439" italics="true" pageId="0" pageNumber="1">Gills</emphasis>
.
</emphasis>
Seven pairs of gills present on abdominal tergites I-VII; gills I enlarged to covered abdominal sternites II-V, oriented ventrally (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>
<figureCitation id="0B63FAAD1A79DFB3B0739ADEF8108DA4" 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>
), gill margin smooth, without fine hair-like setae; gills II-VII slightly oval, oriented dorsolaterally, gills margin smooth with scattered, long, fine hair-like setae.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Paraproct</emphasis>
<paragraph id="7305BC86020304271ADF6904C37BB3FC" pageId="0" pageNumber="1">
<emphasis id="66A6009BD06C5B25078B248BE6F5395D" 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>
<figureCitation id="41C5AF45B3CDA0D3B235BAA0C5294672" 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.
</paragraph>
<caption doi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1" start="Figure 7" startId="F7">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 7.</emphasis>
<taxonomicName authorityName="Phlai-ngam &amp; 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>
<caption id="B4704AD60585E3C0F71BDB5AC9D947F7" doi="10.3897/zookeys.1125.90802.figure7" httpUri="https://binary.pensoft.net/fig/758201" pageId="0" pageNumber="1" start="Figure 7" startId="F7">
<paragraph id="956B4FD1068BFA03431A35131491B78A" pageId="0" pageNumber="1">
<emphasis id="4DBFE5974EFE68ACF76A5912B9B2B305" bold="true" pageId="0" pageNumber="1">Figure 7.</emphasis>
<taxonomicName id="E3EEB0AC7CCEAE688C0EF98AFF67C774" authorityName="Phlai-ngam &amp; Tungpairojwong" authorityYear="2022" class="Insecta" family="Baetidae" genus="Megabranchiella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Megabranchiella scutulata" order="Ephemeroptera" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="scutulata">
<emphasis id="ED9C103E559C7C9FB62144B4E7FC0DDB" italics="true" pageId="0" pageNumber="1">Megabranchiella scutulata</emphasis>
</taxonomicName>
sp. nov., larval morphology
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="3CE2F241FB1A418A8E5C54EC0D995C49" bold="true" pageId="0" pageNumber="1">A</emphasis>
foreleg
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="0266E8FEC8A6FE909398A5FA2B209F88" bold="true" pageId="0" pageNumber="1">B</emphasis>
tarsal claw
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="FB506B3088AB6F1E6FB494FADDF66814" bold="true" pageId="0" pageNumber="1">C</emphasis>
tergite V
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="1BBDB3C56C6264774AD026D4CEBC2CF2" bold="true" pageId="0" pageNumber="1">D</emphasis>
abdominal gills I-VII
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="318E6162C59009CA098B5051D1E85C6E" bold="true" pageId="0" pageNumber="1">E</emphasis>
Paraproct and notched scales on surface.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Caudal filaments</emphasis>
<paragraph id="55B563682B243F515562CF29665F309A" pageId="0" pageNumber="1">
<emphasis id="2CF48E801DC5D09D2070CD0E4A7CBFB1" bold="true" pageId="0" pageNumber="1">
<emphasis id="6F1AB74EB6CD7DC83AE52BEBB5FDC1C0" italics="true" pageId="0" pageNumber="1">Caudal filaments</emphasis>
.
</emphasis>
Inner margin of cerci with very thin, long setae; median filament reduced shorter than 0.4
<normalizedToken originalValue="×">x</normalizedToken>
<normalizedToken id="F2FE905A226C5D2A02563EF84208502A" originalValue="×">x</normalizedToken>
of cerci length, lateral margins with very thin, long setae.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="winged stage">
<paragraph pageId="0" pageNumber="1">Winged stage.</paragraph>
<paragraph pageId="0" pageNumber="1">Unknown.</paragraph>
<subSubSection id="3C1B9D4416414C93647F39EE55A6961C" pageId="0" pageNumber="1" type="winged stage">
<paragraph id="9E8F82AF76B27B9860DC13173B850C9C" pageId="0" pageNumber="1">Winged stage.</paragraph>
<paragraph id="3B610A750824BF20F97A256D95355790" pageId="0" pageNumber="1">Unknown.</paragraph>
</subSubSection>
</treatment>
</document>