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<document id="AA64DC227376EA2F3D76E0D201631EBD" ID="10.11646/zootaxa.4276.2.10SLASH11311" ID-CLB-Dataset="32858" ID-DOI="10.11646/zootaxa.4276.2.10" ID-GBIF-Dataset="77a97faa-24fe-4724-9305-a90765c44f54" ID-ISSN="1175-5326" ID-Zenodo-Dep="806137" ID-ZooBank="F7749F3C-BD1C-4450-8622-A36E3E8A9061" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1497254955075" checkinUser="plazi" docAuthor="Lima, Lucas R. C. &amp; Boldrini, Rafael" docDate="2017" docId="114287BF3466FFF149B4F9EA371FD70E" docLanguage="en" docName="zootaxa.4276.2.10SLASH11311.pdf" docOrigin="Zootaxa 4276 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Caenis reissi Malzacher 1986" docType="treatment" docVersion="10" lastPageNumber="291" masterDocId="ED7BFFC73465FFF74923FFBA3368D452" masterDocTitle="New distributional records and life stage description of Caenis species (Ephemeroptera: Caenidae) from Brazil" masterLastPageNumber="292" masterPageNumber="285" pageNumber="288" updateTime="1698440405901" updateUser="ExternalLinkService">
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<mods:title id="141D1F8C8556A51BE34CAA6CDFA10DCA">New distributional records and life stage description of Caenis species (Ephemeroptera: Caenidae) from Brazil</mods:title>
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<mods:namePart id="79C9347079D9FBB81689086C50178AD2">Lima, Lucas R. C.</mods:namePart>
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<mods:namePart id="BF50DE9FD194C32D598D2F8BDE6E0C21">Boldrini, Rafael</mods:namePart>
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<treatment id="114287BF3466FFF149B4F9EA371FD70E" ID-DOI="http://doi.org/10.5281/zenodo.6029218" ID-GBIF-Taxon="131876646" ID-Zenodo-Dep="6029218" LSID="urn:lsid:plazi:treatment:114287BF3466FFF149B4F9EA371FD70E" httpUri="http://treatment.plazi.org/id/114287BF3466FFF149B4F9EA371FD70E" lastPageId="6" lastPageNumber="291" pageId="3" pageNumber="288">
<subSubSection id="D1F165223466FFF449B4F9EA327DD2DE" pageId="3" pageNumber="288" type="nomenclature">
<paragraph id="995436A93466FFF449B4F9EA316CD238" blockId="3.[151,516,1616,1676]" box="[151,516,1616,1642]" pageId="3" pageNumber="288">
<heading id="C21C81C53466FFF449B4F9EA316CD238" bold="true" box="[151,516,1616,1642]" fontSize="11" level="1" pageId="3" pageNumber="288" reason="1">
<taxonomicName id="5EEB4D2A3466FFF449B4F9EA316CD238" ID-CoL="P9ND" authority="Malzacher, 1986" authorityName="Malzacher" authorityYear="1986" box="[151,516,1616,1642]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="3" pageNumber="288" phylum="Arthropoda" rank="species" species="reissi">
<emphasis id="AB9FEABB3466FFF449B4F9EA316CD238" bold="true" box="[151,516,1616,1642]" pageId="3" pageNumber="288">
<emphasis id="AB9FEABB3466FFF449B4F9EA3258D238" bold="true" box="[151,304,1616,1642]" italics="true" pageId="3" pageNumber="288">Caenis reissi</emphasis>
<bibRefCitation id="FD7A4B583466FFF4481BF9EA316CD238" author="Malzacher" box="[312,516,1616,1642]" pageId="3" pageNumber="288" refString="Malzacher, P. (1986) Caenidae aus dem Amazonasgebiet (Insecta, Ephemeroptera). Spixiana, 9, 83 - 103." type="journal article" year="1986">Malzacher, 1986</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="995436A93466FFF449B4F9C9327DD2DE" blockId="3.[151,516,1616,1676]" box="[151,277,1651,1676]" pageId="3" pageNumber="288">
(
<figureCitation id="01D02A2C3466FFF449BCF9C93264D2DE" box="[159,268,1651,1676]" captionStart-0="FIGURES 4 7" captionStart-1="FIGURES 8 10" captionStart-2="FIGURES 11 16" captionStartId-0="3.[151,264,1482,1505]" captionStartId-1="4.[151,264,1948,1971]" captionStartId-2="5.[151,264,1946,1969]" captionTargetBox-0="[192,1392,420,1430]" captionTargetBox-1="[280,1302,1000,1905]" captionTargetBox-2="[216,1406,257,1916]" captionTargetId-0="figure@3.[151,1436,371,1461]" captionTargetId-1="figure@4.[226,1360,953,1976]" captionTargetId-2="figure@5.[178,1420,185,1941]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionText-0="FIGURES 4 7. Caenis spp., eggs. 4 - 5, C. cuniana: 4, detail of surface (c = chorion; mc = micropylar canal; pc = polar cap); 5, detail of polar cap. 6 - 7, C. reissi: 6, detail of surface (c; chorion; mc = micropylar canal; pc = polar cap); 7, detail of micropyle." captionText-1="FIGURES 8 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view)." captionText-2="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri-0="https://zenodo.org/record/806141/files/figure.png" httpUri-1="https://zenodo.org/record/806143/files/figure.png" httpUri-2="https://zenodo.org/record/806146/files/figure.png" pageId="3" pageNumber="288">Fig. 616</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="D1F165223466FFF449B4F906305BD30C" pageId="3" pageNumber="288" type="reference_group">
<paragraph id="995436A93466FFF449B4F90637BCD283" blockId="3.[151,1236,1723,1745]" box="[151,1236,1723,1745]" pageId="3" pageNumber="288">
<treatmentCitationGroup id="B9FB11873466FFF449B4F90637BCD283" box="[151,1236,1723,1745]" pageId="3" pageNumber="288">
<taxonomicName id="5EEB4D2A3466FFF449B4F9063287D283" ID-CoL="P9ND" authority="Malzacher, 1986: 95" authorityName="Malzacher" authorityPageNumber="95" authorityYear="1986" box="[151,495,1723,1745]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="3" pageNumber="288" phylum="Arthropoda" rank="species" species="reissi">
<emphasis id="AB9FEABB3466FFF449B4F9063272D283" box="[151,282,1724,1745]" italics="true" pageId="3" pageNumber="288">Caenis reissi</emphasis>
<treatmentCitation id="184A10B83466FFF44803F9013287D283" author="Malzacher" box="[288,495,1723,1745]" page="95" pageId="3" pageNumber="288" year="1986">
<bibRefCitation id="FD7A4B583466FFF44803F90132A4D283" author="Malzacher" box="[288,460,1723,1745]" pageId="3" pageNumber="288" refString="Malzacher, P. (1986) Caenidae aus dem Amazonasgebiet (Insecta, Ephemeroptera). Spixiana, 9, 83 - 103." type="journal article" year="1986">Malzacher, 1986</bibRefCitation>
: 95
</treatmentCitation>
</taxonomicName>
(male and female imagos, egg);
<treatmentCitation id="184A10B83466FFF44A1FF9013757D283" author="Lima" box="[828,1087,1723,1745]" page="4" pageId="3" pageNumber="288" year="2016">
<bibRefCitation id="FD7A4B583466FFF44A1FF9013741D283" author="Lima" box="[828,1065,1723,1745]" pageId="3" pageNumber="288" refString="Lima, L. R. C. &amp; Boldrini, R. (2016) First records of small squaregilled mayflies (Ephemeroptera, Caenidae) from the state of Roraima, Northern Brazil. Check List, 12 (4), 1 - 5." type="journal article" year="2016">Lima &amp; Boldrini, 2016</bibRefCitation>
: 4
</treatmentCitation>
(male imago).
</treatmentCitationGroup>
</paragraph>
<paragraph id="995436A93466FFF449B4F947305BD30C" blockId="3.[151,1437,1789,2031]" pageId="3" pageNumber="288">
<emphasis id="AB9FEABB3466FFF449B4F94733A4D344" bold="true" box="[151,204,1789,1814]" pageId="3" pageNumber="288">Egg.</emphasis>
Length: 102123µm; width: 5565µm. Coloration light yellow. Oval shaped with length 1.82.1 maximum width. Chorion densely punctured. Two hood-like polar caps each on an egg pole (
<figureCitation id="01D02A2C3466FFF44D49F89B37DAD368" box="[1130,1202,1825,1850]" captionStart="FIGURES 4 7" captionStartId="3.[151,264,1482,1505]" captionTargetBox="[192,1392,420,1430]" captionTargetId="figure@3.[151,1436,371,1461]" captionTargetPageId="3" captionText="FIGURES 4 7. Caenis spp., eggs. 4 - 5, C. cuniana: 4, detail of surface (c = chorion; mc = micropylar canal; pc = polar cap); 5, detail of polar cap. 6 - 7, C. reissi: 6, detail of surface (c; chorion; mc = micropylar canal; pc = polar cap); 7, detail of micropyle." httpUri="https://zenodo.org/record/806141/files/figure.png" pageId="3" pageNumber="288">Fig. 6</figureCitation>
). Micropyle funnelshaped, narrow and long, with a small sperm guide (
<figureCitation id="01D02A2C3466FFF44BC2F8FF304DD30C" box="[737,805,1861,1886]" captionStart="FIGURES 4 7" captionStartId="3.[151,264,1482,1505]" captionTargetBox="[192,1392,420,1430]" captionTargetId="figure@3.[151,1436,371,1461]" captionTargetPageId="3" captionText="FIGURES 4 7. Caenis spp., eggs. 4 - 5, C. cuniana: 4, detail of surface (c = chorion; mc = micropylar canal; pc = polar cap); 5, detail of polar cap. 6 - 7, C. reissi: 6, detail of surface (c; chorion; mc = micropylar canal; pc = polar cap); 7, detail of micropyle." httpUri="https://zenodo.org/record/806141/files/figure.png" pageId="3" pageNumber="288">Fig. 7</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="D1F165223466FFF149E4F8D3318DD512" lastPageId="6" lastPageNumber="291" pageId="3" pageNumber="288" type="description">
<paragraph id="995436A93466FFF449E4F8D336FED3D3" blockId="3.[151,1437,1789,2031]" box="[199,1430,1897,1922]" pageId="3" pageNumber="288">
<emphasis id="AB9FEABB3466FFF449E4F8D3324ED3D0" bold="true" box="[199,294,1897,1922]" pageId="3" pageNumber="288">Nymph.</emphasis>
Length of male: body,
<quantity id="5E139B4C3466FFF44B0AF8D031EAD3D3" box="[553,642,1898,1922]" metricMagnitude="-3" metricUnit="m" metricValue="2.4" pageId="3" pageNumber="288" unit="mm" value="2.4">2.4 mm</quantity>
; cercus, broken. Length of female: body,
<quantity id="5E139B4C3466FFF44D73F8D037B1D3D3" box="[1104,1241,1898,1922]" metricMagnitude="-3" metricUnit="m" metricValue="3.15" metricValueMax="3.2" metricValueMin="3.1" pageId="3" pageNumber="288" unit="mm" value="3.15" valueMax="3.2" valueMin="3.1">3.13.2 mm</quantity>
; cercus,
<quantity id="5E139B4C3466FFF44C19F8D036FAD3D3" box="[1338,1426,1898,1922]" metricMagnitude="-3" metricUnit="m" metricValue="2.8" pageId="3" pageNumber="288" unit="mm" value="2.8">2.8 mm</quantity>
.
</paragraph>
<paragraph id="995436A93466FFF449E4F837303DD3BC" blockId="3.[151,1437,1789,2031]" pageId="3" pageNumber="288">
<emphasis id="AB9FEABB3466FFF449E4F8373272D3F4" bold="true" box="[199,282,1933,1958]" pageId="3" pageNumber="288">Ratios.</emphasis>
Mouthparts: width of maxillary palp segment I 1.9 times the width of segment II; length of maxillary palp segment I 1.6 times the length of segment II; length of maxillary palp segment I 0.9 times the length of segment III. Leg: length of fore femur 2.4 its maximum width.
</paragraph>
<paragraph id="995436A93461FFF349E4FF2D3732D487" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="289">
<emphasis id="AB9FEABB3461FFF349E4FF2D3220D4E2" bold="true" box="[199,328,151,176]" pageId="4" pageNumber="289">Coloration</emphasis>
(
<figureCitation id="01D02A2C3461FFF34874FF2D32F1D4E2" box="[343,409,151,176]" captionStart="FIGURES 8 10" captionStartId="4.[151,264,1948,1971]" captionTargetBox="[280,1302,1000,1905]" captionTargetId="figure@4.[226,1360,953,1976]" captionTargetPageId="4" captionText="FIGURES 8 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view)." httpUri="https://zenodo.org/record/806143/files/figure.png" pageId="4" pageNumber="289">Fig. 8</figureCitation>
).
<emphasis id="AB9FEABB3461FFF3488CFF2D3284D4E2" box="[431,492,151,176]" italics="true" pageId="4" pageNumber="289">Head</emphasis>
: light brown; occiput and mouthparts paler, grayish markings on posterior margin of occiput; also shaded gray behind eyes.
<emphasis id="AB9FEABB3461FFF34B6FFF0631DBD481" box="[588,691,188,211]" italics="true" pageId="4" pageNumber="289">Antenna:</emphasis>
scape, pedicel and flagellum hyaline.
</paragraph>
<paragraph id="995436A93461FFF349E4FF653154D537" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="289">
<emphasis id="AB9FEABB3461FFF349E4FF653248D4AA" box="[199,288,223,248]" italics="true" pageId="4" pageNumber="289">Thorax.</emphasis>
Nota light with black sutures. Pronotum shaded with black in the males, with anterolateral corners translucent, and blackish paramedian spots. Mesonotum with pair of medial blackish lines in females. Legs yellowish, with blackish banding present on subapical zones of femora, the majority of the central portion of the tibiae and tarsi. Thoracic sterna paler.
</paragraph>
<paragraph id="995436A93461FFF349E4FED5314BD5A7" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="289">
<emphasis id="AB9FEABB3461FFF349E4FED53250D5DA" box="[199,312,367,392]" italics="true" pageId="4" pageNumber="289">Abdomen.</emphasis>
Terga yellowish; segments III shaded with gray; segments IIIVIII, paler medially and with blackish marks laterally. Operculate gills translucent yellow, almost completely shaded with black and with 24 blackish spots in male and
<quantity id="5E139B4C3461FFF348E7FE0D3163D582" box="[452,523,439,464]" metricMagnitude="-1" metricUnit="m" metricValue="1.905" metricValueMax="2.286" metricValueMin="1.524" pageId="4" pageNumber="289" unit="in" value="7.5" valueMax="9.0" valueMin="6.0">69 in</quantity>
female nymphs. Abdominal sterna much paler, with only small grayish sublateral marks. Caudal filaments yellowish.
</paragraph>
<paragraph id="995436A93461FFF349E4FE453096D632" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="289">
<emphasis id="AB9FEABB3461FFF349E4FE453209D64A" bold="true" box="[199,353,511,536]" pageId="4" pageNumber="289">Morphology.</emphasis>
<emphasis id="AB9FEABB3461FFF3484BFE4532CCD64A" box="[360,420,511,536]" italics="true" pageId="4" pageNumber="289">Head</emphasis>
: hind margin without setae.
<emphasis id="AB9FEABB3461FFF34BCAFE45301DD64A" box="[745,885,511,536]" italics="true" pageId="4" pageNumber="289">Mouthparts:</emphasis>
lateral margins of labrum slightly rounded, with long subapical setae on dorsal surface (
<figureCitation id="01D02A2C3461FFF34B68FD9E31A6D66E" box="[587,718,548,573]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Figs. 11, 11</figureCitation>
a); mandibles with dorso-lateral row of pectinate setae; lingua of hypopharynx with fore margin almost straight (
<figureCitation id="01D02A2C3461FFF34B8AFDFD3195D632" box="[681,765,583,608]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 12</figureCitation>
); maxilla as in
<figureCitation id="01D02A2C3461FFF34A8BFDFD3092D632" box="[936,1018,583,608]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 13</figureCitation>
.
</paragraph>
<paragraph id="995436A93461FFF349E4FDD63287D7F7" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="289">
<emphasis id="AB9FEABB3461FFF349E4FDD63248D6D7" box="[199,288,620,645]" italics="true" pageId="4" pageNumber="289">Thorax.</emphasis>
Pronotum with anterolateral margins rounded and directed anteriorly; lateral margins smooth.
<emphasis id="AB9FEABB3461FFF34C7DFDD736F3D6D6" box="[1374,1435,621,644]" italics="true" pageId="4" pageNumber="289">Legs:</emphasis>
meso and metacoxal process semicircular, weakly projected and with smooth margins (
<figureCitation id="01D02A2C3461FFF34D50FD3537ACD6FA" box="[1139,1220,655,680]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 15</figureCitation>
a). Fore femur with submarginal row of short and long setae (
<figureCitation id="01D02A2C3461FFF34B52FD0E31ADD69E" box="[625,709,692,717]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 14</figureCitation>
); middle and hind femora each with long robust setae on dorsal margin (
<figureCitation id="01D02A2C3461FFF349D5FD6D32E8D6A2" box="[246,384,727,752]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Figs. 1516</figureCitation>
); transverse rows of spatulate setae of forefemur reduced, only with six robust setae apically frayed (
<figureCitation id="01D02A2C3461FFF349D2FD46322FD746" box="[241,327,764,789]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 14</figureCitation>
). Tibiae of all legs with longitudinal row of long and slender setae, except pectinate and robust spine-like setae at apex. Fore tarsus with one marginal row of simple spine-like setae near to apex (
<figureCitation id="01D02A2C3461FFF34DC4FCA53652D76A" box="[1255,1338,799,824]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 14</figureCitation>
); middle tarsus with one marginal row of serrated setae, and hind tarsus with two rows of setae (
<figureCitation id="01D02A2C3461FFF34D5DFCFE3663D70F" box="[1150,1291,836,861]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Figs. 15, 16</figureCitation>
): one simple and one serrated. Claws: tarsal claws I and II slender without denticles (
<figureCitation id="01D02A2C3461FFF34A9EFCDD3771D7D2" box="[957,1049,871,896]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Figs. 14</figureCitation>
a, 15b); tarsal claw III curved with 10 minute denticles (
<figureCitation id="01D02A2C3461FFF348A2FC3632BCD7F7" box="[385,468,908,933]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="4" pageNumber="289">Fig. 16</figureCitation>
a).
</paragraph>
<caption id="CD9466213461FFF349B4F826366DD3E1" box="[151,1285,1948,1971]" httpUri="https://zenodo.org/record/806143/files/figure.png" pageId="4" pageNumber="289" targetBox="[280,1302,1000,1905]" targetPageId="4">
<paragraph id="995436A93461FFF349B4F826366DD3E1" blockId="4.[151,1285,1948,1971]" box="[151,1285,1948,1971]" pageId="4" pageNumber="289">
<emphasis id="AB9FEABB3461FFF349B4F826322ED3E0" bold="true" box="[151,326,1948,1971]" pageId="4" pageNumber="289">FIGURES 810.</emphasis>
<taxonomicName id="5EEB4D2A3461FFF3486EF82432B8D3E1" authorityName="Malzacher" authorityYear="1986" box="[333,464,1950,1971]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="4" pageNumber="289" phylum="Arthropoda" rank="species" species="reissi">
<emphasis id="AB9FEABB3461FFF3486EF82432B8D3E1" box="[333,464,1950,1971]" italics="true" pageId="4" pageNumber="289">Caenis reissi</emphasis>
</taxonomicName>
, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view).
</paragraph>
</caption>
<caption id="CD9466213460FFF249B4F820324DD3BC" httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="5" pageNumber="290" targetBox="[216,1406,257,1916]" targetPageId="5">
<paragraph id="995436A93460FFF249B4F820324DD3BC" blockId="5.[151,1436,1946,2030]" pageId="5" pageNumber="290">
<emphasis id="AB9FEABB3460FFF249B4F820323AD3E2" bold="true" box="[151,338,1946,1969]" pageId="5" pageNumber="290">FIGURES 1116.</emphasis>
<taxonomicName id="5EEB4D2A3460FFF24874F82132B1D3E2" authorityName="Malzacher" authorityYear="1986" box="[343,473,1947,1968]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="5" pageNumber="290" phylum="Arthropoda" rank="species" species="reissi">
<emphasis id="AB9FEABB3460FFF24874F82132B1D3E2" box="[343,473,1947,1968]" italics="true" pageId="5" pageNumber="290">Caenis reissi</emphasis>
</taxonomicName>
, nymph. 11, labrum. 11a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14a, detail of foreleg. claw, 15, mid leg. 15a, metacoxal process. 15b, detail of mid leg claw. 16, hind leg. 16a, detail of hind leg claw.
</paragraph>
</caption>
<paragraph id="995436A93463FFF149E4FF2D318DD512" blockId="6.[151,1437,151,861]" pageId="6" pageNumber="291">
<emphasis id="AB9FEABB3463FFF149E4FF2D3250D4E2" box="[199,312,151,176]" italics="true" pageId="6" pageNumber="291">Abdomen.</emphasis>
Tergum II with small projection, wide at base and posteriorly curved. Operculate gills with submarginal ventral row of frayed, subtriangular microtrichia (
<figureCitation id="01D02A2C3463FFF14A72FF0630FDD486" box="[849,917,188,213]" captionStart="FIGURES 8 10" captionStartId="4.[151,264,1948,1971]" captionTargetBox="[280,1302,1000,1905]" captionTargetId="figure@4.[226,1360,953,1976]" captionTargetPageId="4" captionText="FIGURES 8 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view)." httpUri="https://zenodo.org/record/806143/files/figure.png" pageId="6" pageNumber="291">Fig. 9</figureCitation>
); Y-ridge complete and well developed; dorsal surface smooth with long, simple setae (
<figureCitation id="01D02A2C3463FFF14B4AFF6531D8D4AA" box="[617,688,223,248]" captionStart="FIGURES 8 10" captionStartId="4.[151,264,1948,1971]" captionTargetBox="[280,1302,1000,1905]" captionTargetId="figure@4.[226,1360,953,1976]" captionTargetPageId="4" captionText="FIGURES 8 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view)." httpUri="https://zenodo.org/record/806143/files/figure.png" pageId="6" pageNumber="291">Fig. 9</figureCitation>
). Posterolateral projections on abdominal segments VVIII short and pointed, not reaching the basal half of following tergum. Sternum IX with broadly rounded hind margin, laterally posteriorly with long simple setae (
<figureCitation id="01D02A2C3463FFF14BA6FE9D31B0D512" box="[645,728,295,320]" captionStart="FIGURES 8 10" captionStartId="4.[151,264,1948,1971]" captionTargetBox="[280,1302,1000,1905]" captionTargetId="figure@4.[226,1360,953,1976]" captionTargetPageId="4" captionText="FIGURES 8 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view)." httpUri="https://zenodo.org/record/806143/files/figure.png" pageId="6" pageNumber="291">Fig. 10</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="D1F165223463FFF149E4FEF6319AD537" box="[199,754,332,357]" pageId="6" pageNumber="291" type="distribution">
<paragraph id="995436A93463FFF149E4FEF6319AD537" blockId="6.[151,1437,151,861]" box="[199,754,332,357]" pageId="6" pageNumber="291">
<emphasis id="AB9FEABB3463FFF149E4FEF63208D537" bold="true" box="[199,352,332,357]" pageId="6" pageNumber="291">Distribution.</emphasis>
<collectingCountry id="E1FC76393463FFF14844FEF632D8D537" box="[359,432,332,357]" name="Brazil" pageId="6" pageNumber="291">Brazil</collectingCountry>
: States of
<collectingRegion id="5B2FF84B3463FFF14B01FEF6313CD536" box="[546,596,332,356]" country="Brazil" name="Para" pageId="6" pageNumber="291">Pará</collectingRegion>
and
<collectingRegion id="5B2FF84B3463FFF14BA9FEF63186D537" box="[650,750,332,357]" country="Brazil" name="Roraima" pageId="6" pageNumber="291">Roraima</collectingRegion>
.
</paragraph>
</subSubSection>
<subSubSection id="D1F165223463FFF149E4FED532B1D64A" pageId="6" pageNumber="291" type="materials_examined">
<paragraph id="995436A93463FFF149E4FED532B1D64A" blockId="6.[151,1437,151,861]" pageId="6" pageNumber="291">
<materialsCitation id="29833CF43463FFF149E4FED5315FD582" ID-GBIF-Occurrence="1563642370" collectingDate="2016-02-16" collectingDateMax="2016-02-18" collectingDateMin="2016-02-16" collectorName="Lima, L. R. C. &amp; Boldrini, R." country="Brazil" county="Material" latitude="3.6641667" location="Amajari" longLatPrecision="21" longitude="-61.358887" municipality="One" pageId="6" pageNumber="291" specimenCount="1" stateProvince="Roraima">
<emphasis id="AB9FEABB3463FFF149E4FED532DFD5DA" bold="true" box="[199,439,367,392]" pageId="6" pageNumber="291">
<collectingCounty id="70354E253463FFF149E4FED53247D5DA" box="[199,303,367,392]" pageId="6" pageNumber="291">Material</collectingCounty>
examined.
</emphasis>
<collectingMunicipality id="7930ACD33463FFF148E5FECA329DD5DA" box="[454,501,368,392]" pageId="6" pageNumber="291">One</collectingMunicipality>
nymhal exuvium,
<collectingCountry id="E1FC76393463FFF14BFEFED5304CD5DA" box="[733,804,367,392]" name="Brazil" pageId="6" pageNumber="291">Brazil</collectingCountry>
,
<collectingRegion id="5B2FF84B3463FFF14A15FED530FED5DA" box="[822,918,367,392]" country="Brazil" name="Roraima" pageId="6" pageNumber="291">Roraima</collectingRegion>
State,
<location id="9C3460723463FFF14AD1FED53739D5DA" LSID="urn:lsid:plazi:treatment:114287BF3466FFF149B4F9EA371FD70E:9C3460723463FFF14AD1FED53739D5DA" box="[1010,1105,367,392]" country="Brazil" county="Material" latitude="3.6641667" longLatPrecision="21" longitude="-61.358887" municipality="One" name="Amajari" pageId="6" pageNumber="291" stateProvince="Roraima">Amajari</location>
,
<location id="9C3460723463FFF14D40FED53791D5DA" LSID="urn:lsid:plazi:treatment:114287BF3466FFF149B4F9EA371FD70E:9C3460723463FFF14D40FED53791D5DA" box="[1123,1273,367,392]" country="Brazil" county="Material" latitude="3.6641667" longLatPrecision="21" longitude="-61.358887" municipality="One" name="Rio Amajari" pageId="6" pageNumber="291" stateProvince="Roraima">Rio Amajari</location>
,
<geoCoordinate id="FCDF506E3463FFF14C28FED536FCD5DA" box="[1291,1428,367,392]" direction="north" orientation="latitude" pageId="6" pageNumber="291" precision="15" value="3.6641667">3°3951” N</geoCoordinate>
/
<geoCoordinate id="FCDF506E3463FFF149B4FE2E3246D5FE" box="[151,302,404,429]" direction="west" orientation="longitude" pageId="6" pageNumber="291" precision="15" value="-61.358887">61°2132” W</geoCoordinate>
,
<collectingDate id="FD11E9813463FFF1481AFE2E32BAD5FF" box="[313,466,404,429]" pageId="6" pageNumber="291" value="2016-02-16" valueMax="2016-02-18" valueMin="2016-02-16">
<date id="ED5510693463FFF1481AFE2E32BAD5FF" box="[313,466,404,429]" pageId="6" pageNumber="291" value="2016-02-16" valueMax="2016-02-18" valueMin="2016-02-16">16-18.ii.2016</date>
</collectingDate>
,
<collectorName id="341E537F3463FFF148FDFE2E311BD5FE" box="[478,627,404,429]" pageId="6" pageNumber="291">Lima, L.R.C.</collectorName>
and
<collectorName id="341E537F3463FFF14B8AFE2E3047D5FE" box="[681,815,404,429]" pageId="6" pageNumber="291">Boldrini, R.</collectorName>
cols.; same data as preceding except one female imago with its respective exuvium (reared)
</materialsCitation>
;
<materialsCitation id="29833CF43463FFF14B67FE0232B1D64A" ID-GBIF-Occurrence="1563642371" collectingDate="2016-02-17" collectingDateMax="2016-03-30" collectingDateMin="2016-02-17" collectorName="Boldrini, R. &amp; Lima, L. R. C." country="Brazil" county="Material" latitude="3.6186113" location="Igarape Pau Baru" longLatPrecision="21" longitude="-61.595554" municipality="Amajari" pageId="6" pageNumber="291" specimenCount="1" stateProvince="Roraima">
same data as preceding except three nymphs,
<collectingDate id="FD11E9813463FFF14D71FE0D37A6D582" box="[1106,1230,439,464]" pageId="6" pageNumber="291" value="2016-03-30">
<date id="ED5510693463FFF14D71FE0D37A6D582" box="[1106,1230,439,464]" pageId="6" pageNumber="291" value="2016-03-30">30.iii.2016</date>
</collectingDate>
,
<collectorName id="341E537F3463FFF14DF8FE0D360AD59D" box="[1243,1378,439,464]" pageId="6" pageNumber="291">Boldrini, R.</collectorName>
coll. One nymph,
<collectingCountry id="E1FC76393463FFF14811FE663211D5A7" box="[306,377,476,501]" name="Brazil" pageId="6" pageNumber="291">Brazil</collectingCountry>
,
<collectingRegion id="5B2FF84B3463FFF148A9FE663282D5A7" box="[394,490,476,501]" country="Brazil" name="Roraima" pageId="6" pageNumber="291">Roraima</collectingRegion>
State,
<collectingMunicipality id="7930ACD33463FFF14B62FE6631C8D5A7" box="[577,672,476,501]" pageId="6" pageNumber="291">Amajari</collectingMunicipality>
,
<location id="9C3460723463FFF14B8CFE663016D5A6" LSID="urn:lsid:plazi:treatment:114287BF3466FFF149B4F9EA371FD70E:9C3460723463FFF14B8CFE663016D5A6" box="[687,894,476,500]" country="Brazil" latitude="3.6186113" longLatPrecision="21" longitude="-61.595554" municipality="Amajari" name="Igarape Pau Baru" pageId="6" pageNumber="291" stateProvince="Roraima">Igarapé Pau Barú</location>
,
<geoCoordinate id="FCDF506E3463FFF14AACFE66377ED5A6" box="[911,1046,476,500]" direction="north" orientation="latitude" pageId="6" pageNumber="291" precision="15" value="3.6186113">3°3707” N</geoCoordinate>
/
<geoCoordinate id="FCDF506E3463FFF14D09FE6637ADD5A6" box="[1066,1221,476,501]" direction="west" orientation="longitude" pageId="6" pageNumber="291" precision="15" value="-61.595554">61°3544” W</geoCoordinate>
,
<collectingDate id="FD11E9813463FFF14DF6FE663621D5A7" box="[1237,1353,476,501]" pageId="6" pageNumber="291" value="2016-02-17">
<date id="ED5510693463FFF14DF6FE663621D5A7" box="[1237,1353,476,501]" pageId="6" pageNumber="291" value="2016-02-17">17.ii.2016</date>
</collectingDate>
,
<collectorName id="341E537F3463FFF14C79FE66338AD64A" pageId="6" pageNumber="291">Lima, L.R.C.</collectorName>
and
<collectorName id="341E537F3463FFF1483AFE4532F6D645" box="[281,414,511,536]" pageId="6" pageNumber="291">Boldrini, R.</collectorName>
cols.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="D1F165223463FFF149E4FD9E371FD70E" pageId="6" pageNumber="291" type="discussion">
<paragraph id="995436A93463FFF149E4FD9E371FD70E" blockId="6.[151,1437,151,861]" pageId="6" pageNumber="291">
<emphasis id="AB9FEABB3463FFF149E4FD9E3227D66F" bold="true" box="[199,335,548,573]" pageId="6" pageNumber="291">Comments.</emphasis>
The nymphal stage of
<taxonomicName id="5EEB4D2A3463FFF14B77FD9F318ED66E" authorityName="Malzacher" authorityYear="1986" box="[596,742,549,572]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="reissi">
<emphasis id="AB9FEABB3463FFF14B77FD9F318ED66E" box="[596,742,549,572]" italics="true" pageId="6" pageNumber="291">Caenis reissi</emphasis>
</taxonomicName>
shares the characters of the absence of denticles on fore and median tarsal claws with the nymphs of
<taxonomicName id="5EEB4D2A3463FFF14B5FFDF237BCD632" authority="Lima, Molineri, Pinheiro &amp; Salles, 2016" authorityName="Lima et al." authorityYear="2016" box="[636,1236,583,608]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="elidioi">
<emphasis id="AB9FEABB3463FFF14B5FFDF23180D632" box="[636,744,583,608]" italics="true" pageId="6" pageNumber="291">C. elidioi</emphasis>
<bibRefCitation id="FD7A4B583463FFF14BD7FDFD37BCD632" author="Lima" box="[756,1236,583,608]" pageId="6" pageNumber="291" refString="Lima, L. R. C., Molineri, C., Pinheiro, U. &amp; Salles, F. F. (2016 a) Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America. Zootaxa, 4170 (1), 114 - 124. http: // dx. doi. org / 10.11646 / zootaxa. 4170.1.5" type="journal article" year="2016">Lima, Molineri, Pinheiro &amp; Salles, 2016</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="5EEB4D2A3463FFF14DC7FDF23289D6D6" authority="Alba Tercedor &amp; Mosquera, 1999" authorityName="Alba Tercedor &amp; Mosquera" authorityYear="1999" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="chamie">
<emphasis id="AB9FEABB3463FFF14DC7FDF23632D632" box="[1252,1370,583,608]" italics="true" pageId="6" pageNumber="291">C. chamie</emphasis>
Alba Tercedor &amp; Mosquera, 1999
</taxonomicName>
, and
<taxonomicName id="5EEB4D2A3463FFF14B01FDD730FED6D6" authority="Malzacher, 1990" authorityName="Malzacher" authorityYear="1990" box="[546,918,620,645]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="pflugfelderi">
<emphasis id="AB9FEABB3463FFF14B01FDD731A1D6D7" box="[546,713,620,645]" italics="true" pageId="6" pageNumber="291">C. pflugfelderi</emphasis>
<bibRefCitation id="FD7A4B583463FFF14BF7FDD630FED6D6" author="Malzacher" box="[724,918,620,645]" pageId="6" pageNumber="291" refString="Malzacher, P. (1990) Neue Arten der Eintagsfliegen-Familie Caenidae (Insecta, Ephemeroptera) aus Sudamerika. Studies on Neotropical Fauna and Environment, 25, 31 - 39." type="journal article" year="1990">Malzacher, 1990</bibRefCitation>
</taxonomicName>
. This species differs from
<taxonomicName id="5EEB4D2A3463FFF14DECFDD7361ED6D7" authorityName="Malzacher" authorityYear="1990" box="[1231,1398,620,645]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="pflugfelderi">
<emphasis id="AB9FEABB3463FFF14DECFDD7361ED6D7" box="[1231,1398,620,645]" italics="true" pageId="6" pageNumber="291">C. pflugfelderi</emphasis>
</taxonomicName>
by present coxal processes small and weakly projected (
<figureCitation id="01D02A2C3463FFF14BD6FD353039D6FA" box="[757,849,655,680]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="6" pageNumber="291">Figs. 15</figureCitation>
b) (in
<taxonomicName id="5EEB4D2A3463FFF14AB9FD2A3757D6FA" authorityName="Malzacher" authorityYear="1990" box="[922,1087,655,680]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="pflugfelderi">
<emphasis id="AB9FEABB3463FFF14AB9FD2A3757D6FA" box="[922,1087,655,680]" italics="true" pageId="6" pageNumber="291">C. pflugfelderi</emphasis>
</taxonomicName>
it is longer and with marginal teeth.
<taxonomicName id="5EEB4D2A3463FFF149F8FD0F325FD69E" authorityName="Malzacher" authorityYear="1986" box="[219,311,693,716]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="reissi">
<emphasis id="AB9FEABB3463FFF149F8FD0F325FD69E" box="[219,311,693,716]" italics="true" pageId="6" pageNumber="291">C. reissi</emphasis>
</taxonomicName>
can be distinguished from the nymphal stages of all three species by the number and size of denticles on hind claw with about 10 minutes denticles (
<figureCitation id="01D02A2C3463FFF14B83FD6D3198D6A2" box="[672,752,727,752]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="6" pageNumber="291">Fig. 16</figureCitation>
a) rather than about 2030 longer and slender denticles in the others. Besides that, the middle and hind claws are strongly curved (
<figureCitation id="01D02A2C3463FFF14A8DFD463764D747" box="[942,1036,764,789]" captionStart="FIGURES 11 16" captionStartId="5.[151,264,1946,1969]" captionTargetBox="[216,1406,257,1916]" captionTargetId="figure@5.[178,1420,185,1941]" captionTargetPageId="5" captionText="FIGURES 11 16. Caenis reissi, nymph. 11, labrum. 11 a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14 a, detail of foreleg. claw, 15, mid leg. 15 a, metacoxal process. 15 b, detail of mid leg claw. 16, hind leg. 16 a, detail of hind leg claw." httpUri="https://zenodo.org/record/806146/files/figure.png" pageId="6" pageNumber="291">Figs. 15</figureCitation>
b, 16a) instead of slender and only slightly curved in the other species. The sternum IX has the hind margin broadly rounded (
<figureCitation id="01D02A2C3463FFF14D80FCA5379ED76A" box="[1187,1270,799,824]" captionStart="FIGURES 8 10" captionStartId="4.[151,264,1948,1971]" captionTargetBox="[280,1302,1000,1905]" captionTargetId="figure@4.[226,1360,953,1976]" captionTargetPageId="4" captionText="FIGURES 8 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view)." httpUri="https://zenodo.org/record/806143/files/figure.png" pageId="6" pageNumber="291">Fig. 10</figureCitation>
) which differs from truncate margin in
<taxonomicName id="5EEB4D2A3463FFF1488BFCFF3124D70F" authorityName="Malzacher" authorityYear="1990" box="[424,588,836,861]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="pflugfelderi">
<emphasis id="AB9FEABB3463FFF1488BFCFF3124D70F" box="[424,588,836,861]" italics="true" pageId="6" pageNumber="291">C. pflugfelderi</emphasis>
</taxonomicName>
and the medially excavated margin of
<taxonomicName id="5EEB4D2A3463FFF14ADCFCFF3719D70F" authorityName="Alba Tercedor &amp; Mosquera" authorityYear="1999" box="[1023,1137,836,861]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="6" pageNumber="291" phylum="Arthropoda" rank="species" species="chamie">
<emphasis id="AB9FEABB3463FFF14ADCFCFF3719D70F" box="[1023,1137,836,861]" italics="true" pageId="6" pageNumber="291">C. chamie</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>