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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1123.90308" ID-Pensoft-Pub="1313-2970-1123-63" ID-Pensoft-UUID="1BCB0D62026158E7B962D3F2EE741FB4" ID-ZooBank="13556B2ABE8744F69A43FCDAFE1C68CB" ModsDocID="1313-2970-1123-63" checkinTime="1664944213626" checkinUser="pensoft" docAuthor="Kaltenbach, Thomas, Garces, Jhoana &amp; Gattolliat, Jean-Luc" docDate="2022" docId="1D2BF28F1C4B5EE0914C52BFEF043B43" docLanguage="en" docName="ZooKeys 1123: 63-81" docOrigin="ZooKeys 1123" docPubDate="2022-10-04" docSource="http://dx.doi.org/10.3897/zookeys.1123.90308" docTitle="Labiobaetis brao Kaltenbach &amp; Garces &amp; Gattolliat 2022, sp. nov." docType="treatment" docUuid="A5F61492-39FC-4FBC-A77F-C5620E5EDC1E" docUuidSource="ZooBank" docVersion="1" id="1BCB0D62026158E7B962D3F2EE741FB4" lastPageNumber="63" masterDocId="1BCB0D62026158E7B962D3F2EE741FB4" masterDocTitle="First contribution to Labiobaetis Novikova &amp; Kluge in Cambodia (Ephemeroptera, Baetidae), with description of two new species" masterLastPageNumber="81" masterPageNumber="63" pageNumber="63" updateTime="1664944213626" updateUser="pensoft">
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<mods:titleInfo>
<mods:title>First contribution to Labiobaetis Novikova &amp; Kluge in Cambodia (Ephemeroptera, Baetidae), with description of two new species</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kaltenbach, Thomas</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8052-0388</mods:nameIdentifier>
<mods:affiliation>Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland &amp; University of Lausanne (UNIL), Department of Ecology and Evolution, CH- 1015 Lausanne, Switzerland</mods:affiliation>
<mods:nameIdentifier type="email">thomas.kaltenbach@bluewin.ch</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Garces, Jhoana</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5150-0281</mods:nameIdentifier>
<mods:affiliation>Ateneo Biodiversity Research Laboratory, Department of Biology, School of Science and Engineering, Ateneo de Manila University, Quezon City, 1108 Metro Manila, Philippines</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gattolliat, Jean-Luc</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5873-5083</mods:nameIdentifier>
<mods:affiliation>Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland &amp; University of Lausanne (UNIL), Department of Ecology and Evolution, CH- 1015 Lausanne, Switzerland</mods:affiliation>
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<mods:title>ZooKeys</mods:title>
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<mods:part>
<mods:date>2022</mods:date>
<mods:detail type="pubDate">
<mods:number>2022-10-04</mods:number>
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<mods:detail type="volume">
<mods:number>1123</mods:number>
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<mods:start>63</mods:start>
<mods:end>81</mods:end>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.1123.90308</mods:url>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1123.90308</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-1123-63</mods:identifier>
<mods:identifier type="ZooBank">13556B2ABE8744F69A43FCDAFE1C68CB</mods:identifier>
<mods:identifier type="Pensoft-UUID">1BCB0D62026158E7B962D3F2EE741FB4</mods:identifier>
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<treatment LSID="urn:lsid:zoobank.org:act:A5F61492-39FC-4FBC-A77F-C5620E5EDC1E" httpUri="http://treatment.plazi.org/id/1D2BF28F1C4B5EE0914C52BFEF043B43" lastPageNumber="63" pageId="0" pageNumber="63">
<subSubSection pageId="0" pageNumber="63" type="nomenclature">
<paragraph pageId="0" pageNumber="63">
<taxonomicName LSID="https://zoobank.org/A5F61492-39FC-4FBC-A77F-C5620E5EDC1E" authority="Kaltenbach &amp; Garces &amp; Gattolliat, 2022" authorityName="Kaltenbach &amp; Garces &amp; Gattolliat" authorityYear="2022" class="Insecta" family="Baetidae" genus="Labiobaetis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Labiobaetis brao" order="Ephemeroptera" pageId="0" pageNumber="63" phylum="Arthropoda" rank="species" species="brao" status="sp. nov.">Labiobaetis brao</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="63">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="description">
<paragraph pageId="0" pageNumber="63">
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">Figs 1</figureCitation>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">, 2</figureCitation>
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Distribution of Labiobaetis in Cambodia a overview map b Labiobaetis species." figureDoi="10.3897/zookeys.1123.90308.figure6" httpUri="https://binary.pensoft.net/fig/752848" pageId="0" pageNumber="63">, 6b</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="diagnosis">
<paragraph pageId="0" pageNumber="63">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" pageId="0" pageNumber="63">Larva.</emphasis>
Following combination of characters: A) antennal scape with well developed distolateral process (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2g</figureCitation>
); B) dorsal surface of labrum with submarginal arc of 9-11 feathered setae (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1a</figureCitation>
); B) labial palp segment II with broad, extended, thumb-like distomedial protuberance; segment III rather oblong, apically truncate (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1h</figureCitation>
); C) fore femur rather broad, length ca 3
<normalizedToken originalValue="×">x</normalizedToken>
maximum width, dorsal margin with 11-25 curved, short, spine-like setae (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2a</figureCitation>
); D) hind protoptera well developed; E) seven pairs of tergalii; F) paraproct distally not expanded, with ca 34 marginal spines and additional row of minute spines along inner, proximal margin (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2e, f</figureCitation>
).
</paragraph>
<caption doi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" pageId="0" pageNumber="63">Figure 2.</emphasis>
<emphasis bold="true" pageId="0" pageNumber="63">a-c, e-h</emphasis>
<taxonomicName authorityName="Kaltenbach &amp; Garces &amp; Gattolliat" authorityYear="2022" class="Insecta" family="Baetidae" genus="Labiobaetis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Labiobaetis brao" order="Ephemeroptera" pageId="0" pageNumber="63" phylum="Arthropoda" rank="species" species="brao">
<emphasis italics="true" pageId="0" pageNumber="63">Labiobaetis brao</emphasis>
</taxonomicName>
sp. nov., larva morphology
<emphasis bold="true" pageId="0" pageNumber="63">a</emphasis>
foreleg
<emphasis bold="true" pageId="0" pageNumber="63">b</emphasis>
fore claw
<emphasis bold="true" pageId="0" pageNumber="63">c</emphasis>
tergum IV
<emphasis bold="true" pageId="0" pageNumber="63">e</emphasis>
tergalius IV
<emphasis bold="true" pageId="0" pageNumber="63">f</emphasis>
paraproct
<emphasis bold="true" pageId="0" pageNumber="63">g</emphasis>
spines along paraproct margin
<emphasis bold="true" pageId="0" pageNumber="63">h</emphasis>
antennal base
<emphasis bold="true" pageId="0" pageNumber="63">d</emphasis>
<taxonomicName authorityName="Kaltenbach &amp; Gattolliat" authorityYear="2019" class="Insecta" family="Baetidae" genus="Labiobaetis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Labiobaetis paraoperosus" order="Ephemeroptera" pageId="0" pageNumber="63" phylum="Arthropoda" rank="species" species="paraoperosus">
<emphasis italics="true" pageId="0" pageNumber="63">Labiobaetis paraoperosus</emphasis>
</taxonomicName>
: tergum IV.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="description">
<paragraph pageId="0" pageNumber="63">Description.</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" pageId="0" pageNumber="63">Larva</emphasis>
(Figs
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1a-g, i, j</figureCitation>
,
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2 a-c, e-h</figureCitation>
,
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Habitus, larvae a Labiobaetis brao sp. nov., dorsal view b Labiobaetis brao sp. nov., ventral view c Labiobaetis kui sp. nov., dorsal view d Labiobaetis kui sp. nov., ventral view. Scale bar: 1 mm." figureDoi="10.3897/zookeys.1123.90308.figure5" httpUri="https://binary.pensoft.net/fig/752847" pageId="0" pageNumber="63">5a, b</figureCitation>
). Body length 6.4-8.4 mm. Cerci: ca 2/3 of body length. Paracercus: ca 2/3 of cerci length. Antenna: approximately twice as long as head length.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Colouration</emphasis>
(Fig.
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Habitus, larvae a Labiobaetis brao sp. nov., dorsal view b Labiobaetis brao sp. nov., ventral view c Labiobaetis kui sp. nov., dorsal view d Labiobaetis kui sp. nov., ventral view. Scale bar: 1 mm." figureDoi="10.3897/zookeys.1123.90308.figure5" httpUri="https://binary.pensoft.net/fig/752847" pageId="0" pageNumber="63">5a, b</figureCitation>
). Head, thorax and abdomen dorsally grey-brown, with pattern as in Figure
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Distribution of Labiobaetis in Cambodia a overview map b Labiobaetis species." figureDoi="10.3897/zookeys.1123.90308.figure6" httpUri="https://binary.pensoft.net/fig/752848" pageId="0" pageNumber="63">6a</figureCitation>
. Abdominal tergits I and X brighter. Fore protoptera light grey-brown with dark striation. Head ventrally brownish, thorax and abdomen ventrally light grey-brown. Legs ecru to light brown, femur with grey-brown distomedial spot, apex and dorsal margin grey-brown. Caudalii grey-brown.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Antenna</emphasis>
(Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2h</figureCitation>
) with scape and pedicel subcylindrical, with well-developed distolateral process at scape.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Labrum</emphasis>
(Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1a</figureCitation>
). Subrectangular, length 0.65
<normalizedToken originalValue="×">x</normalizedToken>
maximum width. Distal margin with medial emargination and a small process. Dorsally with medium, fine, simple setae scattered over surface; submarginal arc of setae composed of 9-11 long, feathered setae. Ventrally with marginal row of setae composed of lateral and anterolateral long, feathered setae and medial long, bifid, pectinate setae; ventral surface with ca three short, spine-like setae near lateral and anterolateral margin.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Right mandible</emphasis>
(Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1b, c</figureCitation>
). Incisor and kinetodontium fused. Incisor with five denticles; kinetodontium with three denticles, inner margin of innermost denticle with a row of thin setae. Prostheca robust, apically denticulate. Margin between prostheca and mola slightly convex, with few minute denticles. Tuft of setae at apex of mola present.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Left mandible</emphasis>
(Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1d, e</figureCitation>
). Incisor and kinetodontium fused. Incisor with four denticles; kinetodontium with three denticles. Prostheca robust, apically with small denticles and comb-shaped structure. Margin between prostheca and mola slightly convex, with minute denticles. Tuft of setae at apex of mola present.
</paragraph>
<paragraph pageId="0" pageNumber="63">Both mandibles with lateral margins almost straight. Basal half with fine, simple setae scattered over dorsal surface.</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Hypopharynx and superlinguae</emphasis>
(Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1f</figureCitation>
). Lingua approx. as long as superlinguae. Lingua longer than broad; medial tuft of stout setae well developed, broad; distal half laterally expanded. Superlinguae distally rounded; lateral margin rounded; fine, long, simple setae along distal margin.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Maxilla</emphasis>
(Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1g</figureCitation>
). Galea-lacinia ventrally with two simple, apical setae under canines. Inner dorsal row of setae with three denti-setae, distal denti-seta tooth-like, middle and proximal denti-setae slender, bifid and pectinate. Medially with one spine-like seta and three long, simple setae. Maxillary palp 1.3
<normalizedToken originalValue="×">x</normalizedToken>
as long as length of galea-lacinia; 2-segmented; palp segment II approximately as long as segment I; setae on maxillary palp fine, simple, scattered over surface of segments I and II; apex of last segment rounded, with excavation at inner distolateral margin.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Labium</emphasis>
(Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. a-g, i, j Labiobaetis brao sp. nov., larva morphology a labrum (left: ventral view, right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and Labiobaetis superlinguae g maxilla i labium (left: ventral view, right: dorsal view) j apex of paraglossa h Labiobaetis paraoperosus: maxillary palp." figureDoi="10.3897/zookeys.1123.90308.figure1" httpUri="https://binary.pensoft.net/fig/752843" pageId="0" pageNumber="63">1i, j</figureCitation>
). Glossa basally broad, narrowing toward apex; shorter than paraglossa; inner margin with 8-10 spine-like setae, distalmost seta much longer than other setae; apex with three medium and one short, robust setae; outer margin with ca 6 spine-like setae; ventral surface with fine, simple, scattered setae. Paraglossa subrectangular, curved inward; apex rounded; with three rows of long, robust, distally pectinate setae in apical area and three medium, simple setae in anteromedial area; dorsally with a row of four long, spine-like, simple setae near inner margin. Labial palp with segment I 0.8
<normalizedToken originalValue="×">x</normalizedToken>
length of segments II and III combined. Segment I ventrally with short, fine, simple setae. Segment II with broad, extended, thumb-like distomedial protuberance; distomedial protuberance 0.7
<normalizedToken originalValue="×">x</normalizedToken>
width of base of segment III; ventral surface with short, fine, simple setae; dorsally with a row of three long, spine-like setae near outer margin. Segment III rather oblong, apically truncate; length 1.1
<normalizedToken originalValue="×">x</normalizedToken>
width; ventrally covered with short, spine-like, simple setae and short, fine, simple setae.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Hind protoptera</emphasis>
well developed.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Foreleg</emphasis>
(Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2a, b</figureCitation>
). Ratio of foreleg segments 1.4:1.0:0.6:0.2.
<emphasis bold="true" pageId="0" pageNumber="63">
<emphasis italics="true" pageId="0" pageNumber="63">Femur</emphasis>
.
</emphasis>
Length ca 3
<normalizedToken originalValue="×">x</normalizedToken>
maximum width. Dorsal margin with 11-25 curved, short, spine-like setae, often one seta additionally near margin in basal area; length of setae 0.14
<normalizedToken originalValue="×">x</normalizedToken>
maximum width of femur. Apex rounded, with a spine-like seta and some short, stout setae. Many stout, lanceolate setae scattered along ventral margin; femoral patch absent.
<emphasis bold="true" pageId="0" pageNumber="63">
<emphasis italics="true" pageId="0" pageNumber="63">Tibia</emphasis>
.
</emphasis>
Dorsal margin with row of short, stout, apically rounded setae, and some fine, simple setae; many more stout, apically rounded setae along dorsal margin; on apex one seta of same type. Ventral margin with row of short, curved, spine-like setae, on apex some longer setae and a tuft of fine, simple setae. Anterior surface with row of stout, lanceolate setae near ventral margin. Patellatibial suture present on basal 1/3 area.
<emphasis bold="true" pageId="0" pageNumber="63">
<emphasis italics="true" pageId="0" pageNumber="63">Tarsus</emphasis>
.
</emphasis>
Dorsal margin with row of short, stout setae and some fine, simple setae. Ventral margin with row of curved, spine-like setae. Claw with one row of 7-10 denticles; distally pointed; with ca four stripes; subapical setae absent.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" pageId="0" pageNumber="63">
<emphasis italics="true" pageId="0" pageNumber="63">Middle and hind legs</emphasis>
.
</emphasis>
As foreleg, but with reduced or rudimentary femoral patch on middle femur, and reduced or well developed on hind femur.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Terga</emphasis>
(Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2c</figureCitation>
). Surface with irregular rows of U-shaped scale bases. Posterior margin of tergum IV with spines varying between mostly triangular to mostly rounded, wider than long.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Tergalii</emphasis>
(Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2e</figureCitation>
). Present on segments I-VII. Margins with small denticles intercalating fine simple setae. Tracheae extending from main trunk to inner and outer margins. Tergalius I ca 2/3 length of segment II. Tergalius IV as long as length of segments V and 1/2 VI combined. Tergalius VII as long as length of segment VIII.
</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" italics="true" pageId="0" pageNumber="63">Paraproct</emphasis>
(Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. a-c, e-h Labiobaetis brao sp. nov., larva morphology a foreleg b fore claw c tergum IV e tergalius IV f paraproct g spines along paraproct margin h antennal base d Labiobaetis paraoperosus: tergum IV." figureDoi="10.3897/zookeys.1123.90308.figure2" httpUri="https://binary.pensoft.net/fig/752844" pageId="0" pageNumber="63">2f, g</figureCitation>
). Distally not expanded, with ca 34 stout, marginal spines, and additional row of minute spines along inner, proximal margin. Surface scattered with U-shaped scale bases and fine, simple setae. Cercotractor with numerous small, marginal spines.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="etymology">
<paragraph pageId="0" pageNumber="63">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="63">The new species is dedicated to the indigenous Brao people from northeastern Cambodia.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="distribution">
<paragraph pageId="0" pageNumber="63">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="63">
Cambodia (Fig.
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Distribution of Labiobaetis in Cambodia a overview map b Labiobaetis species." figureDoi="10.3897/zookeys.1123.90308.figure6" httpUri="https://binary.pensoft.net/fig/752848" pageId="0" pageNumber="63">6b</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="biological aspects">
<paragraph pageId="0" pageNumber="63">Biological aspects.</paragraph>
<paragraph pageId="0" pageNumber="63">The specimens were mainly collected in secondary forest remnants at altitudes of 100 m, partly on littoral gravel.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="63" type="type material">
<paragraph pageId="0" pageNumber="63">Type material.</paragraph>
<paragraph pageId="0" pageNumber="63">
<emphasis bold="true" pageId="0" pageNumber="63">
<emphasis italics="true" pageId="0" pageNumber="63">Holotype</emphasis>
.
</emphasis>
Cambodia • larva; Kampong Speu Province, Kokie waterfall, sec. forest remnants; 110 m;
<geoCoordinate degrees="11" direction="north" minutes="12" orientation="latitude" precision="15" seconds="11" value="11.203055">11°12'11&quot;N</geoCoordinate>
,
<geoCoordinate degrees="104" direction="east" minutes="03" orientation="longitude" precision="15" seconds="49" value="104.063614">104°03'49&quot;E</geoCoordinate>
; 12.07.2018; leg. H. Freitag and J. Garces; on slide; GBIFCH00592700; MZL.
<emphasis bold="true" pageId="0" pageNumber="63">
<emphasis italics="true" pageId="0" pageNumber="63">Paratypes</emphasis>
.
</emphasis>
Cambodia • 8 larvae; same data as holotype; 1 on slide; GenBank ON982739; GBIFCH00829878; RUPP; 1 on slide; GBIFCH00975576; MZL; 6 in alcohol; GBIFCH00975580, GBIFCH00975581; MZL • 1 larva; Kampong Speu Province, Chambok River, 1.83 Km from Chambok Community, sec. forest, littoral gravel; 240 m;
<geoCoordinate degrees="11" direction="north" minutes="21" orientation="latitude" precision="15" seconds="58" value="11.366112">11°21'58&quot;N</geoCoordinate>
,
<geoCoordinate degrees="104" direction="east" minutes="06" orientation="longitude" precision="15" seconds="17" value="104.10472">104°06'17&quot;E</geoCoordinate>
; 11.07.2018; leg. H. Freitag and J. Garces; on slide; GBIFCH00592730; RUPP.
</paragraph>
</subSubSection>
</treatment>
</document>