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<mods:title id="F1AC8E9BBE1FCEE0598BD92828EB04A5">Contribution to the genus Clypeocaenis Soldán, 1978 (Ephemeroptera: Caenidae) from Lao Peoples Democratic Republic with a key to Oriental species</mods:title>
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<taxonomicName id="4C5C9282FFA4FFC6FF6DFCC7FDDAFC96" ID-CoL="5ZCPM" authority="Soldan, 1983" authorityName="Soldan" authorityYear="1983" box="[151,619,858,885]" class="Insecta" family="Caenidae" genus="Clypeocaenis" kingdom="Animalia" order="Ephemeroptera" pageId="9" pageNumber="510" phylum="Arthropoda" rank="species" species="oligosetosa">
<emphasis id="B9283513FFA4FFC6FF6DFCC7FE75FC97" bold="true" box="[151,452,858,885]" italics="true" pageId="9" pageNumber="510">Clypeocaenis oligosetosa</emphasis>
<bibRefCitation id="EFCD94F0FFA4FFC6FE31FCC7FDDAFC96" author="Soldan, T." box="[459,619,858,885]" pageId="9" pageNumber="510" pagination="196 - 205" refId="ref10604" refString="Soldan, T. (1983) Two new species of Clypeocaenis (Ephemeroptera, Caenidae) with a description of adult stage and biology of the genus. Acta Entomologica Bohemoslovaca, 80, 196 - 205." type="journal article" year="1983">Soldán, 1983</bibRefCitation>
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(
<figureCitation id="1367F584FFA4FFC6FD80FCC7FD5DFC96" box="[634,748,858,884]" captionStart-0="FIGURE 6" captionStart-1="FIGURE 7" captionStart-2="FIGURE 8" captionStartId-0="10.[151,250,1689,1713]" captionStartId-1="11.[151,250,1776,1800]" captionStartId-2="12.[151,250,1776,1800]" captionTargetBox-0="[158,1430,179,1663]" captionTargetBox-1="[158,1430,181,1752]" captionTargetBox-2="[158,1430,181,1752]" captionTargetId-0="figure-26@10.[158,1430,179,1663]" captionTargetId-1="figure-18@11.[158,1430,181,1752]" captionTargetId-2="figure-26@12.[158,1430,181,1752]" captionTargetPageId-0="10" captionTargetPageId-1="11" captionTargetPageId-2="12" captionText-0="FIGURE 6. Clypeocaenis oligosetosa Soldán, 1983 observed in the Xe Nou River, Lao PDR, A. Dorsal view of the head capsule. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 1 mm; B, E = 200 μm; C, D = 300 μm; F = 400 μm." captionText-1="FIGURE 7. Clypeocaenis oligosetosa Soldán, 1983 from Xe Nou River, Lao PDR, A. Forefemur. B. Foreclaw. C. Mid claw. D. Hind claw. E. Operculate gill. FG. Eggs, arrow indicate the micropyle. Scale bars: A, E = 400 μm; BD, F = 100 μm; G = 50 μm." captionText-2="FIGURE 8. Clypeocaenis oligosetosa Soldán, 1983 (A, B) and Clypeocaenis multisetosa Soldán, 1978 (C, D). A, C. High magnification view of microtrichia on the dorsal surface of operculate gills. B, D. Microtrichia band on the ventral side of operculate gills. Scale bars: A = 20 μm; C = 50 μm; B, D = 100 μm." figureDoi-0="http://doi.org/10.5281/zenodo.13745375" figureDoi-1="http://doi.org/10.5281/zenodo.13745377" figureDoi-2="http://doi.org/10.5281/zenodo.13745381" httpUri-0="https://zenodo.org/record/13745375/files/figure.png" httpUri-1="https://zenodo.org/record/13745377/files/figure.png" httpUri-2="https://zenodo.org/record/13745381/files/figure.png" pageId="9" pageNumber="510">Figs. 68</figureCitation>
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<emphasis id="B9283513FFA4FFC6FF6DFC02FE2BFC55" box="[151,410,927,951]" italics="true" pageId="9" pageNumber="510">Clypeocaenis oligosetosa</emphasis>
<bibRefCitation id="EFCD94F0FFA4FFC6FE5BFC02FDEAFC55" author="Soldan, T." box="[417,603,927,951]" pageId="9" pageNumber="510" pagination="196 - 205" refId="ref10604" refString="Soldan, T. (1983) Two new species of Clypeocaenis (Ephemeroptera, Caenidae) with a description of adult stage and biology of the genus. Acta Entomologica Bohemoslovaca, 80, 196 - 205." type="journal article" year="1983">Soldán, 1983: 198</bibRefCitation>
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(orig. desc.,
<figureCitation id="1367F584FFA4FFC6FD1BFC02FC90FC55" box="[737,801,927,951]" captionStart="FIGURE 2" captionStartId="4.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@4.[158,1430,181,1752]" captionTargetPageId="4" captionText="FIGURE 2. Clypeocaenis laosensis sp. nov., A. Head capsule, viewed dorsally. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 500 μm; BD = 200 μm; E = 100 μm; F = 300 μm." figureDoi="http://doi.org/10.5281/zenodo.13745363" httpUri="https://zenodo.org/record/13745363/files/figure.png" pageId="9" pageNumber="510">Figs 2</figureCitation>
,
<figureCitation id="1367F584FFA4FFC6FCD7FC02FC8DFC55" box="[813,828,927,951]" captionStart="FIGURE 4" captionStartId="6.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@6.[158,1430,181,1752]" captionTargetPageId="6" captionText="FIGURE 4. Clypeocaesni laosensis sp. nov., A. Abdominal terga VIX. B. Tergum II. C. Sternum IX. D. Operculate gill, dorsal view. E. Higher magnification of the operculate gill, dorsal view. F. Spatulate setae on the medial ridge. G. Operculate gill, viewed from the ventral side. Scale bars: A, D, G = 500 μm; B = 100 μm; C, F = 200 μm; E = 50 μm." figureDoi="http://doi.org/10.5281/zenodo.13745367" httpUri="https://zenodo.org/record/13745367/files/figure.png" pageId="9" pageNumber="510">4</figureCitation>
,
<figureCitation id="1367F584FFA4FFC6FCBDFC02FCC1FC55" box="[839,880,927,951]" captionStart-0="FIGURE 6" captionStart-1="FIGURE 7" captionStartId-0="10.[151,250,1689,1713]" captionStartId-1="11.[151,250,1776,1800]" captionTargetBox-0="[158,1430,179,1663]" captionTargetBox-1="[158,1430,181,1752]" captionTargetId-0="figure-26@10.[158,1430,179,1663]" captionTargetId-1="figure-18@11.[158,1430,181,1752]" captionTargetPageId-0="10" captionTargetPageId-1="11" captionText-0="FIGURE 6. Clypeocaenis oligosetosa Soldán, 1983 observed in the Xe Nou River, Lao PDR, A. Dorsal view of the head capsule. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 1 mm; B, E = 200 μm; C, D = 300 μm; F = 400 μm." captionText-1="FIGURE 7. Clypeocaenis oligosetosa Soldán, 1983 from Xe Nou River, Lao PDR, A. Forefemur. B. Foreclaw. C. Mid claw. D. Hind claw. E. Operculate gill. FG. Eggs, arrow indicate the micropyle. Scale bars: A, E = 400 μm; BD, F = 100 μm; G = 50 μm." figureDoi-0="http://doi.org/10.5281/zenodo.13745375" figureDoi-1="http://doi.org/10.5281/zenodo.13745377" httpUri-0="https://zenodo.org/record/13745375/files/figure.png" httpUri-1="https://zenodo.org/record/13745377/files/figure.png" pageId="9" pageNumber="510">67</figureCitation>
,
<figureCitation id="1367F584FFA4FFC6FC80FC02FC0AFC55" box="[890,955,927,951]" captionStart-0="FIGURE 12" captionStart-1="FIGURE 13" captionStart-2="FIGURE 14" captionStartId-0="18.[151,250,1776,1800]" captionStartId-1="19.[151,251,1776,1800]" captionStartId-2="20.[151,250,1091,1115]" captionTargetBox-0="[158,1430,181,1752]" captionTargetBox-1="[158,1430,179,1750]" captionTargetBox-2="[160,1430,185,1064]" captionTargetId-0="figure-26@18.[158,1430,181,1752]" captionTargetId-1="figure-18@19.[158,1430,179,1750]" captionTargetId-2="figure-26@20.[158,1430,181,1067]" captionTargetPageId-0="18" captionTargetPageId-1="19" captionTargetPageId-2="20" captionText-0="FIGURE 12. Microtrichia bands on the ventral side of the operculate gill, as previously documented. A. Clypeocaenis soldani. B. Clypeocaenis multisetosa. C. Clypeocaenis oligosetosa. D. Clypeocaenis kaveri. E. Clypeocaenis afrosetosa. F. Clypeocaenis laosensis sp. nov. G. Mekongellina sangpradubae." captionText-1="FIGURE 13. Habitats of the genus Clypeocaenis Soldán, 1978 in Lao PDR, A. Xe Nou River, Xebangfai District, Khammouane Province. B. Tha Hao Stream, Xaybury District, Savannakhet Province. C. Xe Bang Hieng River, Songkhone District, Savannakhet Province. D. Outlet Stream of Nam Xouang Reservoir, Naxaythong District, Vientiane Capital." captionText-2="FIGURE 14. Geographic distribution of the Clypeocaenis laosensis sp. nov. (circle), C. oligosetosa (star); C. multisetosa (triangle)." figureDoi-0="http://doi.org/10.5281/zenodo.13745395" figureDoi-1="http://doi.org/10.5281/zenodo.13745397" figureDoi-2="http://doi.org/10.5281/zenodo.13745401" httpUri-0="https://zenodo.org/record/13745395/files/figure.png" httpUri-1="https://zenodo.org/record/13745397/files/figure.png" httpUri-2="https://zenodo.org/record/13745401/files/figure.png" pageId="9" pageNumber="510">1214</figureCitation>
, 16, 18, 1925;
<treatmentCitation id="0AFDCF10FFA4FFC6FB9BFC3DFA2DFC55" author="Martynov, A. V. &amp; Palatov, D. M." box="[1121,1436,927,952]" page="1" pageId="9" pageNumber="510" year="2017">
<bibRefCitation id="EFCD94F0FFA4FFC6FB9BFC3DFA2DFC55" author="Martynov, A. V. &amp; Palatov, D. M." box="[1121,1436,927,952]" pageId="9" pageNumber="510" pagination="21 - 22" refId="ref10212" refString="Martynov, A. V. &amp; Palatov, D. M. (2017) Distribution extension of Oriental mayfly Clypeocaenis oligosetosa Soldan, 1983 (Ephemeroptera: Caenidae). Check list, 13 (3), 21 - 22." type="journal article" year="2017">Martynov and Palatov, 2017: 1</bibRefCitation>
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<figureCitation id="1367F584FFA4FFC6FF3DFC23FE9EFC34" box="[199,303,958,982]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStart-5="FIGURE 6" captionStart-6="FIGURE 7" captionStart-7="FIGURE 8" captionStart-8="FIGURE 9" captionStart-9="FIGURE 10" captionStartId-0="3.[151,250,2008,2032]" captionStartId-1="4.[151,250,1776,1800]" captionStartId-2="5.[151,250,1776,1800]" captionStartId-3="6.[151,250,1776,1800]" captionStartId-4="7.[151,250,1776,1800]" captionStartId-5="10.[151,250,1689,1713]" captionStartId-6="11.[151,250,1776,1800]" captionStartId-7="12.[151,250,1776,1800]" captionStartId-8="14.[151,250,1776,1800]" captionStartId-9="15.[151,251,1467,1491]" captionTargetBox-0="[261,1327,626,1982]" captionTargetBox-1="[158,1430,181,1752]" captionTargetBox-2="[158,1430,181,1752]" captionTargetBox-3="[158,1430,181,1752]" captionTargetBox-4="[158,1430,181,1752]" captionTargetBox-5="[158,1430,179,1663]" captionTargetBox-6="[158,1430,181,1752]" captionTargetBox-7="[158,1430,181,1752]" captionTargetBox-8="[158,1430,179,1750]" captionTargetBox-9="[158,1430,199,1444]" captionTargetId-0="figure-232@3.[261,1327,626,1982]" captionTargetId-1="figure-26@4.[158,1430,181,1752]" captionTargetId-2="figure-18@5.[158,1430,181,1752]" captionTargetId-3="figure-26@6.[158,1430,181,1752]" captionTargetId-4="figure-18@7.[158,1430,181,1752]" captionTargetId-5="figure-26@10.[158,1430,179,1663]" captionTargetId-6="figure-18@11.[158,1430,181,1752]" captionTargetId-7="figure-26@12.[158,1430,181,1752]" captionTargetId-8="figure-26@14.[158,1430,179,1750]" captionTargetId-9="figure-18@15.[158,1430,199,1444]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionTargetPageId-4="7" captionTargetPageId-5="10" captionTargetPageId-6="11" captionTargetPageId-7="12" captionTargetPageId-8="14" captionTargetPageId-9="15" captionText-0="FIGURE 1. Clypeocaenis laosensis sp. nov., habitus. A. Female larva. B. Male larva. Scale bars: 1 mm." captionText-1="FIGURE 2. Clypeocaenis laosensis sp. nov., A. Head capsule, viewed dorsally. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 500 μm; BD = 200 μm; E = 100 μm; F = 300 μm." captionText-2="FIGURE 3. Clypeocaenis laosensis sp. nov., A. Foreleg. B. High magnification view setae of transverse row forefemur. C. Forecoxa. D. Foreclaw. E. Mid leg. F. Mid claw. G. Hind leg. H. Hind claw. Scale bars: A, E, G = 500 μm; B = 300 μm; C = 200 μm; D, F, H = 100 μm." captionText-3="FIGURE 4. Clypeocaesni laosensis sp. nov., A. Abdominal terga VIX. B. Tergum II. C. Sternum IX. D. Operculate gill, dorsal view. E. Higher magnification of the operculate gill, dorsal view. F. Spatulate setae on the medial ridge. G. Operculate gill, viewed from the ventral side. Scale bars: A, D, G = 500 μm; B = 100 μm; C, F = 200 μm; E = 50 μm." captionText-4="FIGURE 5. Clpeocaenis laosensis sp. nov., A. Gills III, IV. B. Egg, arrow indicate the micropyle. C. Epithema. D. Detail of the micropyle. Scale bars: A = 500 μm; B = 100 μm; C = 40 μm; D = 30 μm." captionText-5="FIGURE 6. Clypeocaenis oligosetosa Soldán, 1983 observed in the Xe Nou River, Lao PDR, A. Dorsal view of the head capsule. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 1 mm; B, E = 200 μm; C, D = 300 μm; F = 400 μm." captionText-6="FIGURE 7. Clypeocaenis oligosetosa Soldán, 1983 from Xe Nou River, Lao PDR, A. Forefemur. B. Foreclaw. C. Mid claw. D. Hind claw. E. Operculate gill. FG. Eggs, arrow indicate the micropyle. Scale bars: A, E = 400 μm; BD, F = 100 μm; G = 50 μm." captionText-7="FIGURE 8. Clypeocaenis oligosetosa Soldán, 1983 (A, B) and Clypeocaenis multisetosa Soldán, 1978 (C, D). A, C. High magnification view of microtrichia on the dorsal surface of operculate gills. B, D. Microtrichia band on the ventral side of operculate gills. Scale bars: A = 20 μm; C = 50 μm; B, D = 100 μm." captionText-8="FIGURE 9. Clypeocaenis multisetosa Soldán, 1978, collected from Xe Nou River, Xe Bang Hieng River, and outlet Stream of Nam Xouang Resurvoir in Lao PDR, A. Head capsule. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A, D (left maxillary palp) = 500 μm; B, C (right mandible), E = 200 μm; C (left mandible) = 300 μm; D, F (right maxillary palp) = 400 μm." captionText-9="FIGURE 10. Clypeocaenis multisetosa Soldán, 1978, from Xe Nou River, Xe Bang Hieng River, and outlet Stream of Nam Xouang Resurvoir, Lao PDR, A. Forefemur. B. Mid femur. C. Hind femur. D. Foreclaw. E. Mid claw. F. Hind claw. Scale bars: A, B = 500 μm; C = 400 μm; DF = 100 μm." figureDoi-0="http://doi.org/10.5281/zenodo.13745357" figureDoi-1="http://doi.org/10.5281/zenodo.13745363" figureDoi-2="http://doi.org/10.5281/zenodo.13745365" figureDoi-3="http://doi.org/10.5281/zenodo.13745367" figureDoi-4="http://doi.org/10.5281/zenodo.13745371" figureDoi-5="http://doi.org/10.5281/zenodo.13745375" figureDoi-6="http://doi.org/10.5281/zenodo.13745377" figureDoi-7="http://doi.org/10.5281/zenodo.13745381" figureDoi-8="http://doi.org/10.5281/zenodo.13745385" figureDoi-9="http://doi.org/10.5281/zenodo.13745389" httpUri-0="https://zenodo.org/record/13745357/files/figure.png" httpUri-1="https://zenodo.org/record/13745363/files/figure.png" httpUri-2="https://zenodo.org/record/13745365/files/figure.png" httpUri-3="https://zenodo.org/record/13745367/files/figure.png" httpUri-4="https://zenodo.org/record/13745371/files/figure.png" httpUri-5="https://zenodo.org/record/13745375/files/figure.png" httpUri-6="https://zenodo.org/record/13745377/files/figure.png" httpUri-7="https://zenodo.org/record/13745381/files/figure.png" httpUri-8="https://zenodo.org/record/13745385/files/figure.png" httpUri-9="https://zenodo.org/record/13745389/files/figure.png" pageId="9" pageNumber="510">Figs 110</figureCitation>
).
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C346BA8AFFA4FFC6FF6DFB9EFAAFFB14" pageId="9" pageNumber="510" type="materials_examined">
<paragraph id="8BE3E901FFA4FFC6FF6DFB9EFEF2FB4C" blockId="9.[151,1437,1027,1847]" pageId="9" pageNumber="510">
<emphasis id="B9283513FFA4FFC6FF6DFB9EFE38FBFC" bold="true" box="[151,393,1027,1054]" pageId="9" pageNumber="510">
<emphasis id="B9283513FFA4FFC6FF6DFB9EFE33FBFC" bold="true" box="[151,386,1027,1054]" italics="true" pageId="9" pageNumber="510">Materials examined</emphasis>
.
</emphasis>
<materialsCitation id="3B34E35CFFA4FFC6FE6FFB99FCA9FB84" collectingDate="2022-01-06" collectionCode="V" collectorName="Vannachak &amp; Natural History Museum" country="Thailand" county="Xe Nou River" elevation="154" latitude="17.068213" location="Lao" longLatPrecision="1" longitude="105.070465" municipality="Xebangfai District" pageId="9" pageNumber="510" specimenCount="10" specimenCount-female="5" specimenCount-male="5">
<specimenCount id="9D5A2288FFA4FFC6FE6FFB99FE54FBFC" box="[405,485,1028,1055]" count="5" pageId="9" pageNumber="510" type="male">5 male</specimenCount>
and
<specimenCount id="9D5A2288FFA4FFC6FDDFFB99FD3AFBFC" box="[549,651,1028,1055]" count="5" pageId="9" pageNumber="510" type="female">5 female</specimenCount>
larvae (THNHM-I-0002977000029779),
<location id="8E83BFDAFFA4FFC6FB84FB98FB1BFBFD" LSID="urn:lsid:plazi:treatment:03F55817FFA4FFC6FF6DFCC7FD36F8D4:8E83BFDAFFA4FFC6FB84FB98FB1BFBFD" box="[1150,1194,1029,1055]" country="Thailand" county="Xe Nou River" latitude="17.068213" longLatPrecision="1" longitude="105.070465" municipality="Xebangfai District" name="Lao" pageId="9" pageNumber="510">Lao</location>
PDR,
<location id="8E83BFDAFFA4FFC6FB05FB99FF4CFBA0" LSID="urn:lsid:plazi:treatment:03F55817FFA4FFC6FF6DFCC7FD36F8D4:8E83BFDAFFA4FFC6FB05FB99FF4CFBA0" country="Thailand" county="Xe Nou River" latitude="17.068213" longLatPrecision="1" longitude="105.070465" municipality="Xebangfai District" name="Khammouane Province" pageId="9" pageNumber="510">Khammouane Province</location>
,
<collectingMunicipality id="6B87737BFFA4FFC6FEF1FBB5FE51FBA0" box="[267,480,1064,1090]" pageId="9" pageNumber="510">Xebangfai District</collectingMunicipality>
,
<collectingCounty id="6282918DFFA4FFC6FE17FBB4FD20FBA0" box="[493,657,1064,1091]" pageId="9" pageNumber="510">Xe Nou River</collectingCounty>
,
<geoCoordinate id="EE688FC6FFA4FFC6FD65FBB5FC80FBA1" box="[671,817,1064,1091]" degrees="17" direction="north" minutes="4" orientation="latitude" pageId="9" pageNumber="510" precision="1" seconds="5.56" value="17.068213">17°45.56”N</geoCoordinate>
,
<geoCoordinate id="EE688FC6FFA4FFC6FCC5FBB5FC5EFBA1" box="[831,1007,1064,1091]" degrees="105" direction="east" minutes="4" orientation="longitude" pageId="9" pageNumber="510" precision="1" seconds="13.68" value="105.070465">105°413.68E</geoCoordinate>
,
<elevation id="00710E32FFA4FFC6FC07FBB5FB34FBA0" box="[1021,1157,1064,1091]" metricMagnitude="2" metricUnit="m" metricValue="1.54" pageId="9" pageNumber="510" unit="m" value="154.0">
<quantity id="4CA444E4FFA4FFC6FC07FBB5FBF7FBA1" box="[1021,1094,1064,1091]" metricMagnitude="2" metricUnit="m" metricValue="1.54" pageId="9" pageNumber="510" unit="m" value="154.0">154 m</quantity>
a.s.l.
</elevation>
,
<date id="FFE2CFC1FFA4FFC6FB6EFBB5FB42FBA0" box="[1172,1267,1064,1090]" pageId="9" pageNumber="510" value="2022-01-06">
<collectingDate id="EFA63629FFA4FFC6FB6EFBB5FB42FBA0" box="[1172,1267,1064,1090]" pageId="9" pageNumber="510" value="2022-01-06">6.I.2022</collectingDate>
</date>
,
<collectionCode id="ED4D71C4FFA4FFC6FAFBFBB4FAA4FBA1" box="[1281,1301,1065,1091]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="9" pageNumber="510" type="Museum">V</collectionCode>
.
<collectorName id="26A98CD7FFA4FFC6FADBFBB5FA2DFBA0" box="[1313,1436,1064,1090]" pageId="9" pageNumber="510">Vannachak</collectorName>
leg, deposited in the
<collectorName id="26A98CD7FFA4FFC6FE7CFBD1FD14FB85" box="[390,677,1100,1127]" pageId="9" pageNumber="510">Natural History Museum</collectorName>
,
<collectingCountry id="F34BA991FFA4FFC6FD4BFBD1FCA9FB84" box="[689,792,1100,1126]" name="Thailand" pageId="9" pageNumber="510">Thailand</collectingCountry>
</materialsCitation>
.
<materialsCitation id="3B34E35CFFA4FFC6FCDEFBD1FE14FB68" collectingDate="2022-01-06" collectionCode="V" collectorName="Vannachak &amp; Natural History Museum" country="Laos" county="Xe Nou River" elevation="154" latitude="17.068213" location="Lao" longLatPrecision="1" longitude="105.070465" municipality="Xebangfai District" pageId="9" pageNumber="510" specimenCount="24" specimenCount-female="14" specimenCount-male="10">
<specimenCount id="9D5A2288FFA4FFC6FCDEFBD1FCCEFB84" box="[804,895,1100,1126]" count="10" pageId="9" pageNumber="510" type="male">10 male</specimenCount>
and
<specimenCount id="9D5A2288FFA4FFC6FC43FBD1FB9BFB84" box="[953,1066,1100,1126]" count="14" pageId="9" pageNumber="510" type="female">14 female</specimenCount>
larvae (Cl/
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.004), same data deposited in KKU-AIC
</materialsCitation>
.
<materialsCitation id="3B34E35CFFA4FFC6FE48FBEDFEF2FB4C" collectingDate="2022-01-06" collectionCode="V" collectorName="Vannachak" country="Laos" county="Xe Nou River" elevation="154" latitude="17.068213" location="Cl" longLatPrecision="1" longitude="105.070465" municipality="Xebangfai District" pageId="9" pageNumber="510" specimenCount="40" specimenCount-female="20" specimenCount-male="20">
<specimenCount id="9D5A2288FFA4FFC6FE48FBEDFDBCFB68" box="[434,525,1136,1162]" count="20" pageId="9" pageNumber="510" type="male">20 male</specimenCount>
and
<specimenCount id="9D5A2288FFA4FFC6FDB3FBEDFD0AFB68" box="[585,699,1136,1162]" count="20" pageId="9" pageNumber="510" type="female">20 female</specimenCount>
larvae (
<location id="8E83BFDAFFA4FFC6FCE0FBEDFC87FB68" LSID="urn:lsid:plazi:treatment:03F55817FFA4FFC6FF6DFCC7FD36F8D4:8E83BFDAFFA4FFC6FCE0FBEDFC87FB68" box="[794,822,1136,1162]" country="Laos" name="Cl" pageId="9" pageNumber="510">Cl</location>
/
<collectingCountry id="F34BA991FFA4FFC6FCC5FBEDFCC8FB68" box="[831,889,1136,1162]" name="Laos" pageId="9" pageNumber="510">Laos</collectingCountry>
.004), same data deposited in NUoL-AIC, all
<collectionCode id="ED4D71C4FFA4FFC6FA7FFBECFA28FB69" box="[1413,1433,1137,1163]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="9" pageNumber="510" type="Museum">V</collectionCode>
.
<collectorName id="26A98CD7FFA4FFC6FF6DFB09FEA3FB4C" box="[151,274,1172,1198]" pageId="9" pageNumber="510">Vannachak</collectorName>
leg.
</materialsCitation>
</paragraph>
<paragraph id="8BE3E901FFA4FFC6FF3DFB25FAAFFB14" blockId="9.[151,1437,1027,1847]" pageId="9" pageNumber="510">
<emphasis id="B9283513FFA4FFC6FF3DFB25FF4EFB30" bold="true" box="[199,255,1208,1234]" pageId="9" pageNumber="510">Egg:</emphasis>
Oval shape, with 119142 μm in length and 6990 μm in width. Chorion smooth with a cap-shaped epithema. Micropyle, positioned subequatorially, moderate length, sperm guide not visible (
<figureCitation id="1367F584FFA4FFC6FB66FB41FAA0FB14" box="[1180,1297,1244,1271]" captionStart="FIGURE 7" captionStartId="11.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-18@11.[158,1430,181,1752]" captionTargetPageId="11" captionText="FIGURE 7. Clypeocaenis oligosetosa Soldán, 1983 from Xe Nou River, Lao PDR, A. Forefemur. B. Foreclaw. C. Mid claw. D. Hind claw. E. Operculate gill. FG. Eggs, arrow indicate the micropyle. Scale bars: A, E = 400 μm; BD, F = 100 μm; G = 50 μm." figureDoi="http://doi.org/10.5281/zenodo.13745377" httpUri="https://zenodo.org/record/13745377/files/figure.png" pageId="9" pageNumber="510">Fig. 7F, G</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C346BA8AFFA4FFC6FF3DFA9DFBB7F90C" pageId="9" pageNumber="510" type="discussion">
<paragraph id="8BE3E901FFA4FFC6FF3DFA9DFB14F9D8" blockId="9.[151,1437,1027,1847]" pageId="9" pageNumber="510">
<emphasis id="B9283513FFA4FFC6FF3DFA9DFE8AFAF8" bold="true" box="[199,315,1280,1306]" pageId="9" pageNumber="510">Remarks.</emphasis>
<taxonomicName id="4C5C9282FFA4FFC6FEB9FA9DFDD3FAF8" authorityName="Soldan" authorityYear="1983" box="[323,610,1280,1306]" class="Insecta" family="Caenidae" genus="Clypeocaenis" kingdom="Animalia" order="Ephemeroptera" pageId="9" pageNumber="510" phylum="Arthropoda" rank="species" species="oligosetosa">
<emphasis id="B9283513FFA4FFC6FEB9FA9DFDD3FAF8" box="[323,610,1280,1306]" italics="true" pageId="9" pageNumber="510">Clypeocaenis oligosetosa</emphasis>
</taxonomicName>
was initially recorded in
<collectingCountry id="F34BA991FFA4FFC6FC7EFA9DFC52FAF8" box="[900,995,1280,1306]" name="Vietnam" pageId="9" pageNumber="510">Vietnam</collectingCountry>
(
<bibRefCitation id="EFCD94F0FFA4FFC6FC09FA9DFB3CFAF8" author="Soldan, T." box="[1011,1165,1280,1306]" pageId="9" pageNumber="510" pagination="196 - 205" refId="ref10604" refString="Soldan, T. (1983) Two new species of Clypeocaenis (Ephemeroptera, Caenidae) with a description of adult stage and biology of the genus. Acta Entomologica Bohemoslovaca, 80, 196 - 205." type="journal article" year="1983">Soldán, 1983</bibRefCitation>
).
<bibRefCitation id="EFCD94F0FFA4FFC6FB5BFA9CFF53FADC" author="Martynov, A. V. &amp; Palatov, D. M." pageId="9" pageNumber="510" pagination="21 - 22" refId="ref10212" refString="Martynov, A. V. &amp; Palatov, D. M. (2017) Distribution extension of Oriental mayfly Clypeocaenis oligosetosa Soldan, 1983 (Ephemeroptera: Caenidae). Check list, 13 (3), 21 - 22." type="journal article" year="2017">Martynov and Palatov (2017)</bibRefCitation>
later extended its known distribution to
<collectingCountry id="F34BA991FFA4FFC6FD6DFAB9FD4CFADC" box="[663,765,1316,1342]" name="Thailand" pageId="9" pageNumber="510">Thailand</collectingCountry>
, marking a significant range expansion of over
<quantity id="4CA444E4FFA4FFC6FAFAFAB9FAD0FADC" box="[1280,1377,1316,1342]" metricMagnitude="6" metricUnit="m" metricValue="1.3" pageId="9" pageNumber="510" unit="km" value="1300.0">1300 km</quantity>
from the original locus typicus. This extension led to the anticipation of its presence in Lao PDR, which was confirmed by the specimens collected in this study. The identification of
<taxonomicName id="4C5C9282FFA4FFC6FCBFFAF1FC5DFA64" authorityName="Soldan" authorityYear="1983" box="[837,1004,1388,1414]" class="Insecta" family="Caenidae" genus="Clypeocaenis" kingdom="Animalia" order="Ephemeroptera" pageId="9" pageNumber="510" phylum="Arthropoda" rank="species" species="oligosetosa">
<emphasis id="B9283513FFA4FFC6FCBFFAF1FC5DFA64" box="[837,1004,1388,1414]" italics="true" pageId="9" pageNumber="510">Cl. oligosetosa</emphasis>
</taxonomicName>
from Lao PDR was based on a distinct combination of morphological traits, such as the setae on the clypeal protrusion with several long setae (about 4) and several short ones (
<figureCitation id="1367F584FFA4FFC6FE64FA29FE49FA2C" box="[414,504,1460,1486]" captionStart="FIGURE 6" captionStartId="10.[151,250,1689,1713]" captionTargetBox="[158,1430,179,1663]" captionTargetId="figure-26@10.[158,1430,179,1663]" captionTargetPageId="10" captionText="FIGURE 6. Clypeocaenis oligosetosa Soldán, 1983 observed in the Xe Nou River, Lao PDR, A. Dorsal view of the head capsule. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 1 mm; B, E = 200 μm; C, D = 300 μm; F = 400 μm." figureDoi="http://doi.org/10.5281/zenodo.13745375" httpUri="https://zenodo.org/record/13745375/files/figure.png" pageId="9" pageNumber="510">Fig. 6A</figureCitation>
), maxillary palp two segmented, labial palp with a short and irregularly trapezoidal second segment, and an elongated third segment (
<figureCitation id="1367F584FFA4FFC6FD21FA45FCE9FA10" box="[731,856,1496,1522]" captionStart="FIGURE 6" captionStartId="10.[151,250,1689,1713]" captionTargetBox="[158,1430,179,1663]" captionTargetId="figure-26@10.[158,1430,179,1663]" captionTargetPageId="10" captionText="FIGURE 6. Clypeocaenis oligosetosa Soldán, 1983 observed in the Xe Nou River, Lao PDR, A. Dorsal view of the head capsule. B. Labrum. C. Mandibles. D. Maxillae. E. Hypopharynx. F. Labium. Scale bars: A = 1 mm; B, E = 200 μm; C, D = 300 μm; F = 400 μm." figureDoi="http://doi.org/10.5281/zenodo.13745375" httpUri="https://zenodo.org/record/13745375/files/figure.png" pageId="9" pageNumber="510">Fig. 6D, F</figureCitation>
), forefemur setation, operculate gill structure, and the microtrichia band pattern on the ventral side of the operculate gill with single spines, spine clusters, and a few irregularly scale-shaped microtrichia, positioned closer to the lateral margin (
<figureCitation id="1367F584FFA4FFC6FC02F9BDFBEBF9D8" box="[1016,1114,1568,1594]" captionStart="FIGURE 8" captionStartId="12.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@12.[158,1430,181,1752]" captionTargetPageId="12" captionText="FIGURE 8. Clypeocaenis oligosetosa Soldán, 1983 (A, B) and Clypeocaenis multisetosa Soldán, 1978 (C, D). A, C. High magnification view of microtrichia on the dorsal surface of operculate gills. B, D. Microtrichia band on the ventral side of operculate gills. Scale bars: A = 20 μm; C = 50 μm; B, D = 100 μm." figureDoi="http://doi.org/10.5281/zenodo.13745381" httpUri="https://zenodo.org/record/13745381/files/figure.png" pageId="9" pageNumber="510">Figs. 8B</figureCitation>
,
<figureCitation id="1367F584FFA4FFC6FB9CF9BDFB29F9D8" box="[1126,1176,1568,1594]" captionStart="FIGURE 12" captionStartId="18.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@18.[158,1430,181,1752]" captionTargetPageId="18" captionText="FIGURE 12. Microtrichia bands on the ventral side of the operculate gill, as previously documented. A. Clypeocaenis soldani. B. Clypeocaenis multisetosa. C. Clypeocaenis oligosetosa. D. Clypeocaenis kaveri. E. Clypeocaenis afrosetosa. F. Clypeocaenis laosensis sp. nov. G. Mekongellina sangpradubae." figureDoi="http://doi.org/10.5281/zenodo.13745395" httpUri="https://zenodo.org/record/13745395/files/figure.png" pageId="9" pageNumber="510">12B</figureCitation>
).
</paragraph>
<paragraph id="8BE3E901FFA4FFC6FF3DF9D9FBB7F90C" blockId="9.[151,1437,1027,1847]" pageId="9" pageNumber="510">
The current investigation revealed the presence of shield-shaped microtrichia with fringed margins on the dorsal body surface, notably on the operculate gill (
<figureCitation id="1367F584FFA4FFC6FD69F9F5FD5FF960" box="[659,750,1640,1666]" captionStart="FIGURE 8" captionStartId="12.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@12.[158,1430,181,1752]" captionTargetPageId="12" captionText="FIGURE 8. Clypeocaenis oligosetosa Soldán, 1983 (A, B) and Clypeocaenis multisetosa Soldán, 1978 (C, D). A, C. High magnification view of microtrichia on the dorsal surface of operculate gills. B, D. Microtrichia band on the ventral side of operculate gills. Scale bars: A = 20 μm; C = 50 μm; B, D = 100 μm." figureDoi="http://doi.org/10.5281/zenodo.13745381" httpUri="https://zenodo.org/record/13745381/files/figure.png" pageId="9" pageNumber="510">Fig. 8A</figureCitation>
). The microtrichia band on the ventral side of the operculate gill closely follows the lateral margin, terminating well before the hind margin. This band is composed of slender spines and a few clusters of 2 or 3 spines, predominantly located along the inner margin of the band (
<figureCitation id="1367F584FFA4FFC6FB0BF92DFAE2F928" box="[1265,1363,1712,1738]" captionStart="FIGURE 8" captionStartId="12.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@12.[158,1430,181,1752]" captionTargetPageId="12" captionText="FIGURE 8. Clypeocaenis oligosetosa Soldán, 1983 (A, B) and Clypeocaenis multisetosa Soldán, 1978 (C, D). A, C. High magnification view of microtrichia on the dorsal surface of operculate gills. B, D. Microtrichia band on the ventral side of operculate gills. Scale bars: A = 20 μm; C = 50 μm; B, D = 100 μm." figureDoi="http://doi.org/10.5281/zenodo.13745381" httpUri="https://zenodo.org/record/13745381/files/figure.png" pageId="9" pageNumber="510">Figs. 8B</figureCitation>
,
<figureCitation id="1367F584FFA4FFC6FAA7F92DFA21F928" box="[1373,1424,1712,1738]" captionStart="FIGURE 12" captionStartId="18.[151,250,1776,1800]" captionTargetBox="[158,1430,181,1752]" captionTargetId="figure-26@18.[158,1430,181,1752]" captionTargetPageId="18" captionText="FIGURE 12. Microtrichia bands on the ventral side of the operculate gill, as previously documented. A. Clypeocaenis soldani. B. Clypeocaenis multisetosa. C. Clypeocaenis oligosetosa. D. Clypeocaenis kaveri. E. Clypeocaenis afrosetosa. F. Clypeocaenis laosensis sp. nov. G. Mekongellina sangpradubae." figureDoi="http://doi.org/10.5281/zenodo.13745395" httpUri="https://zenodo.org/record/13745395/files/figure.png" pageId="9" pageNumber="510">12C</figureCitation>
). Eggs extracted from mature female larvae are described here for the first time.
</paragraph>
</subSubSection>
<subSubSection id="C346BA8AFFA4FFC6FF3DF96AFD36F8D4" pageId="9" pageNumber="510" type="distribution">
<paragraph id="8BE3E901FFA4FFC6FF3DF96AFD36F8D4" blockId="9.[151,1437,1027,1847]" pageId="9" pageNumber="510">
<emphasis id="B9283513FFA4FFC6FF3DF96AFE5AF8F0" bold="true" box="[199,491,1783,1810]" pageId="9" pageNumber="510">
<emphasis id="B9283513FFA4FFC6FF3DF96AFE55F8F0" bold="true" box="[199,484,1783,1810]" italics="true" pageId="9" pageNumber="510">Distribution and habitat</emphasis>
.
</emphasis>
<collectingRegion id="499827E3FFA4FFC6FE0CF965FCB2F8F0" box="[502,771,1784,1810]" country="Laos" name="Khammouan" pageId="9" pageNumber="510">Khammouane Province</collectingRegion>
, Lao PDR (
<figureCitation id="1367F584FFA4FFC6FC6BF965FBB7F8F0" box="[913,1030,1784,1810]" captionStart="FIGURE 13" captionStartId="19.[151,251,1776,1800]" captionTargetBox="[158,1430,179,1750]" captionTargetId="figure-18@19.[158,1430,179,1750]" captionTargetPageId="19" captionText="FIGURE 13. Habitats of the genus Clypeocaenis Soldán, 1978 in Lao PDR, A. Xe Nou River, Xebangfai District, Khammouane Province. B. Tha Hao Stream, Xaybury District, Savannakhet Province. C. Xe Bang Hieng River, Songkhone District, Savannakhet Province. D. Outlet Stream of Nam Xouang Reservoir, Naxaythong District, Vientiane Capital." figureDoi="http://doi.org/10.5281/zenodo.13745397" httpUri="https://zenodo.org/record/13745397/files/figure.png" pageId="9" pageNumber="510">Figs. 13A</figureCitation>
,
<figureCitation id="1367F584FFA4FFC6FBEFF965FB85F8F0" box="[1045,1076,1784,1810]" captionStart="FIGURE 14" captionStartId="20.[151,250,1091,1115]" captionTargetBox="[160,1430,185,1064]" captionTargetId="figure-26@20.[158,1430,181,1067]" captionTargetPageId="20" captionText="FIGURE 14. Geographic distribution of the Clypeocaenis laosensis sp. nov. (circle), C. oligosetosa (star); C. multisetosa (triangle)." figureDoi="http://doi.org/10.5281/zenodo.13745401" httpUri="https://zenodo.org/record/13745401/files/figure.png" pageId="9" pageNumber="510">14</figureCitation>
).
<taxonomicName id="4C5C9282FFA4FFC6FBB6F965FB46F8F0" authorityName="Soldan" authorityYear="1983" box="[1100,1271,1784,1810]" class="Insecta" family="Caenidae" genus="Clypeocaenis" kingdom="Animalia" order="Ephemeroptera" pageId="9" pageNumber="510" phylum="Arthropoda" rank="species" species="oligosetosa">
<emphasis id="B9283513FFA4FFC6FBB6F965FB46F8F0" box="[1100,1271,1784,1810]" italics="true" pageId="9" pageNumber="510">Cl. oligosetosa</emphasis>
</taxonomicName>
was collected within the littoral zone of the Xe Nou River.
</paragraph>
</subSubSection>
</treatment>
</document>