treatments-xml/data/03/E9/11/03E911354F36E600FF02837682DCFCEE.xml
2024-06-21 12:22:17 +02:00

484 lines
67 KiB
XML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<document id="F64B9189DD7BE679C7E9153D136796E8" ID-DOI="10.5281/zenodo.179923" ID-GBIF-Dataset="d4476361-9dc4-449d-bcf8-133aa0dedc73" ID-ISSN="1175-5326" ID-Zenodo-Dep="179923" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460013795156" checkinUser="plazi" docAuthor="Molineri, Carlos &amp; Malzacher, Peter" docDate="2007" docId="03E911354F36E600FF02837682DCFCEE" docLanguage="en" docName="zt01660p031.pdf" docOrigin="Zootaxa 1660" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Caenis tenella Navas, comb. nov." docType="treatment" docVersion="9" lastPageNumber="24" masterDocId="FFD0694D4F22E617FF95816C8213FFE4" masterDocTitle="South American Caenis Stephens (Ephemeroptera, Caenidae), new species and stage descriptions" masterLastPageNumber="31" masterPageNumber="1" pageNumber="21" updateTime="1698233543632" updateUser="plazi">
<mods:mods id="72EA910FE3C2EB8FC74C216A837F3253" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="5EE4D0DE6237FC0ACFDCA07DD71F1748">
<mods:title id="F96B4AB6CE993CFCB4092D4BBF53CEE5">South American Caenis Stephens (Ephemeroptera, Caenidae), new species and stage descriptions</mods:title>
</mods:titleInfo>
<mods:name id="35AF48F7C084BC1C59582438FB543CE5" type="personal">
<mods:role id="D931AB8F4B48C764E8F4B7C0939DF048">
<mods:roleTerm id="8C088B1FAD8F0FDA65797592642192F4">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="90E5842D714812B89F5A11390CAA4394">Molineri, Carlos</mods:namePart>
</mods:name>
<mods:name id="FBF99C72396CC64D76B5358175AB0B42" type="personal">
<mods:role id="4908248BC6991232B67C5205D70A8EAF">
<mods:roleTerm id="225C30BA2EAA2CCD9A39D6A195BB90D1">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="03574366DEAA921D3CDB12BC5C20DB5B">Malzacher, Peter</mods:namePart>
</mods:name>
<mods:typeOfResource id="22D08C8CC1DEEA5DC459FA86888FA785">text</mods:typeOfResource>
<mods:relatedItem id="BA8EB15DD3BFE0FC1B0E68BE6C71AFD7" type="host">
<mods:titleInfo id="527F67A5761E9EE26D1A0F96DDDBAA0A">
<mods:title id="2F7B50D01FCA55196D372FAE4C9A0633">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="66BF68925B75074299C75867E2FF76CC">
<mods:date id="60630B8E99B48F755805E8EB3A03F340">2007</mods:date>
<mods:detail id="C48012950C48A76BC0A3C5A4CF729D21" type="volume">
<mods:number id="E7BFBF389C1E9D1E6649BA1DBC442E26">1660</mods:number>
</mods:detail>
<mods:extent id="CD913ED70EAC3B3433A84B6D205D5B8F" unit="page">
<mods:start id="BF4759739A9257E6BC2853B4583DE99E">1</mods:start>
<mods:end id="48BC79D37EB66F2FFF5E9B4458740035">31</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="245B9CDAAA2FA783ACD3C87B79E0AFD0">journal article</mods:classification>
<mods:identifier id="41ACDE0E26BFA2526AC36B7898F67C61" type="DOI">10.5281/zenodo.179923</mods:identifier>
<mods:identifier id="9AB247B5C2BC840E7FE29F20A9B431D7" type="GBIF-Dataset">d4476361-9dc4-449d-bcf8-133aa0dedc73</mods:identifier>
<mods:identifier id="FDB6450D6A92B18D854EB51BC8EB3C40" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="4A6B9573BD42DAE87338A6CE63093BE3" type="Zenodo-Dep">179923</mods:identifier>
</mods:mods>
<treatment id="03E911354F36E600FF02837682DCFCEE" ID-DOI="http://doi.org/10.5281/zenodo.6244721" ID-GBIF-Taxon="119381499" ID-Zenodo-Dep="6244721" LSID="urn:lsid:plazi:treatment:03E911354F36E600FF02837682DCFCEE" httpUri="http://treatment.plazi.org/id/03E911354F36E600FF02837682DCFCEE" lastPageId="23" lastPageNumber="24" pageId="20" pageNumber="21">
<subSubSection id="C35AF3A84F36E603FF0283768648FDD0" box="[151,1115,538,564]" pageId="20" pageNumber="21" type="nomenclature">
<paragraph id="8BFFA0234F36E603FF0283768648FDD0" blockId="20.[151,1115,538,564]" box="[151,1115,538,564]" pageId="20" pageNumber="21">
<heading id="D0B7174F4F36E603FF0283768648FDD0" bold="true" box="[151,1115,538,564]" fontSize="11" level="1" pageId="20" pageNumber="21" reason="1">
<emphasis id="B9347C314F36E603FF0283768648FDD0" bold="true" box="[151,1115,538,564]" pageId="20" pageNumber="21">
<taxonomicName id="4C40DBA04F36E603FF02837683B9FDD0" ID-CoL="P9NV" authority="Navas" authorityName="Navas" box="[151,426,538,564]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="tenella" status="comb. nov.">
<emphasis id="B9347C314F36E603FF0283768351FDD0" bold="true" box="[151,322,538,564]" italics="true" pageId="20" pageNumber="21">Caenis tenella</emphasis>
(Navas)
</taxonomicName>
<taxonomicNameLabel id="A207C14A4F36E603FE2483768024FDD0" box="[433,567,538,564]" pageId="20" pageNumber="21">comb. nov.</taxonomicNameLabel>
(
<figureCitation id="137BBCA64F36E603FDD2837680E0FDD0" box="[583,755,538,564]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="20" pageNumber="21">Figs. 123138</figureCitation>
,
<figureCitation id="137BBCA64F36E603FC948376817BFDD0" box="[769,872,538,564]" captionStart="FIGURES 139 157" captionStartId="22.[151,269,1675,1699]" captionTargetBox="[187,1404,641,1645]" captionTargetId="figure@22.[173,1413,634,1651]" captionTargetPageId="22" captionText="FIGURES 139 157. Left and right mandibles, d. v.: 139 140, C. argentina; 141 142, C. burmeisteri; 143 144, C. dominguezi; 145 146, C. gonseri; 147 148, C. tenella; 149 150, C. ludicra; 151 152, C. plaumanni; 153 154, C. uruzu. Hypopharynx, v. v.: 155, C. burmeisteri; 156, C. dominguezi; 157, C. tenella." httpUri="https://zenodo.org/record/179932/files/figure.png" pageId="20" pageNumber="21">147148</figureCitation>
,
<figureCitation id="137BBCA64F36E603FCE3837681B0FDD0" box="[886,931,538,564]" captionStart="FIGURES 162 164" captionStartId="25.[151,269,1409,1433]" captionTargetBox="[365,1220,182,1400]" captionTargetId="figure@25.[365,1221,182,1401]" captionTargetPageId="25" captionText="FIGURES 162 164. Nymph, general view: 162, C. tenella; 163, C. plaumanni; 164, C. uruzu." httpUri="https://zenodo.org/record/179934/files/figure.png" pageId="20" pageNumber="21">162</figureCitation>
, 168, 176, 182)
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C35AF3A84F36E603FF0283098159FD38" pageId="20" pageNumber="21" type="reference_group">
<paragraph id="8BFFA0234F36E603FF02830980DEFD98" blockId="20.[151,887,613,732]" box="[151,717,613,636]" pageId="20" pageNumber="21">
<treatmentCitationGroup id="AB50870D4F36E603FF02830980DEFD98" box="[151,717,613,636]" pageId="20" pageNumber="21">
<taxonomicName id="4C40DBA04F36E603FF0283098038FD98" authority="Navas, 1932a: 112" authorityName="Navas" authorityPageNumber="112" authorityYear="1932" box="[151,555,613,636]" class="Insecta" family="Caenidae" genus="Eurycaenis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F36E603FF028309834EFD98" box="[151,349,613,636]" italics="true" pageId="20" pageNumber="21">Eurycaenis tenella</emphasis>
<treatmentCitation id="0AE186324F36E603FEF183098038FD98" author="Navas" box="[356,555,613,636]" page="112" pageId="20" pageNumber="21" year="1932">
<bibRefCitation id="EFD1DDD24F36E603FEF1830983EAFD98" author="Navas" box="[356,505,613,636]" pageId="20" pageNumber="31" refString="Navas, L. (1932) Insectos de la Argentina. Revista de la Academia de Ciencias de Zaragoza, 16, 87 - 120." type="journal article" year="1932" yearSuffix="a">Navas, 1932a</bibRefCitation>
: 112
</treatmentCitation>
</taxonomicName>
(male, female)
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BFFA0234F36E603FF0283E98040FD58" blockId="20.[151,887,613,732]" pageId="20" pageNumber="21">
<treatmentCitationGroup id="AB50870D4F36E603FF0283E98040FD58" pageId="20" pageNumber="21">
<taxonomicName id="4C40DBA04F36E603FF0283E98364FD78" box="[151,375,645,668]" class="Insecta" family="Caenidae" genus="Brachycercus" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F36E603FF0283E98364FD78" box="[151,375,645,668]" italics="true" pageId="20" pageNumber="21">Brachycercus tenella</emphasis>
</taxonomicName>
;
<treatmentCitation id="0AE186324F36E603FE1083E9802FFD78" author="Thew" box="[389,572,645,668]" page="202" pageId="20" pageNumber="21" year="1960">
<bibRefCitation id="EFD1DDD24F36E603FE1083E98014FD78" author="Thew" box="[389,519,645,668]" pageId="20" pageNumber="31" refString="Thew, T. B. (1960) Revision of the genera of the family Caenidae (Ephemeroptera). Transactions of the American Entomological Society, 86, 187 - 205." type="journal article" year="1960">Thew, 1960</bibRefCitation>
: 202
</treatmentCitation>
;
<treatmentCitation id="0AE186324F36E603FDD283E98164FD78" author="Dominguez" box="[583,887,645,668]" page="197" pageId="20" pageNumber="21" year="2006">
<bibRefCitation id="EFD1DDD24F36E603FDD283E98157FD78" author="Dominguez" box="[583,836,645,668]" pageId="20" pageNumber="31" refString="Dominguez, E., Molineri, C., Pescador, M., Hubbard, M. D. &amp; Nieto, C. (2006) Aquatic Biodiversity in Latin America, Vol. 1: Ephemeroptera of South America. Pensoft, Sofia-Moscow, 646 p." type="book" year="2006">Domínguez et al., 2006</bibRefCitation>
: 197
</treatmentCitation>
<taxonomicName id="4C40DBA04F36E603FF0283C98391FD58" box="[151,386,677,700]" class="Insecta" family="Caenidae" genus="Brachycercus" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="tenellus">
<emphasis id="B9347C314F36E603FF0283C98391FD58" box="[151,386,677,700]" italics="true" pageId="20" pageNumber="21">Brachycercus tenellus</emphasis>
</taxonomicName>
;
<treatmentCitation id="0AE186324F36E603FE0583C98040FD58" author="Soldan" box="[400,595,677,700]" page="294" pageId="20" pageNumber="21" year="1986">
<bibRefCitation id="EFD1DDD24F36E603FE0583C98033FD58" author="Soldan" box="[400,544,677,700]" pageId="20" pageNumber="31" refString="Soldan, T. (1986) A revision of the Caenidae with ocellar tubercles in the nymphal stage (Ephemeroptera). Acta Universitatis Carolinae, Biologica (1982 - 1984), 289 - 362." type="book chapter" year="1986">Soldán, 1986</bibRefCitation>
: 294
</treatmentCitation>
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BFFA0234F36E603FF0283A98159FD38" blockId="20.[151,887,613,732]" box="[151,842,709,732]" pageId="20" pageNumber="21">
<treatmentCitationGroup id="AB50870D4F36E603FF0283A98159FD38" box="[151,842,709,732]" pageId="20" pageNumber="21">
<taxonomicName id="4C40DBA04F36E603FF0283A98011FD38" authority="Malzacher, 2001: 15" authorityName="Malzacher" authorityPageNumber="15" authorityYear="2001" box="[151,514,709,732]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="grimi">
<emphasis id="B9347C314F36E603FF0283A98332FD38" box="[151,289,709,732]" italics="true" pageId="20" pageNumber="21">Caenis grimi</emphasis>
<treatmentCitation id="0AE186324F36E603FEBD83A98011FD38" author="Malzacher" box="[296,514,709,732]" page="15" pageId="20" pageNumber="21" year="2001">
<bibRefCitation id="EFD1DDD24F36E603FEBD83A983CDFD38" author="Malzacher" box="[296,478,709,732]" pageId="20" pageNumber="31" refString="Malzacher, P. (2001) South and Central American Caenis species with rounded forceps tips (Insecta: Ephemeroptera: Caenidae). Stuttgarter Beitrage zur Naturkunde Ser. A, 626, 1 - 20." type="journal article" year="2001">Malzacher, 2001</bibRefCitation>
: 15
</treatmentCitation>
</taxonomicName>
(male, female, eggs) syn. nov.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C35AF3A84F36E600FF02826182DCFCEE" lastPageId="23" lastPageNumber="24" pageId="20" pageNumber="21" type="materials_examined">
<paragraph id="8BFFA0234F36E603FF02826181DAFC7B" blockId="20.[151,1437,781,2007]" pageId="20" pageNumber="21">
<typeStatus id="54FB1E814F36E603FF02826182C2FCC3" box="[151,209,781,807]" pageId="20" pageNumber="21">Type</typeStatus>
material.
<taxonomicName id="4C40DBA04F36E603FECC8261802EFCC2" box="[345,573,781,806]" class="Insecta" family="Caenidae" genus="Eurycaenis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F36E603FECC8261802EFCC2" box="[345,573,781,806]" italics="true" pageId="20" pageNumber="21">Eurycaenis tenella</emphasis>
</taxonomicName>
:
<typeStatus id="54FB1E814F36E603FDC3826180AFFCC3" box="[598,700,781,807]" pageId="20" pageNumber="21" type="holotype">holotype</typeStatus>
male imago and allotype female imago (
<collectionCode id="ED5138E64F36E603FB4882618758FCC3" box="[1245,1355,781,807]" pageId="20" pageNumber="21">MUNSA</collectionCode>
) from
<taxonomicName id="4C40DBA04F36E603FF0282598354FCAB" box="[151,327,821,847]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="29" phylum="Arthropoda" rank="species" species="argentina">
<collectingCountry id="F357E0B34F36E603FF0282598354FCAB" box="[151,327,821,847]" name="Argentina" pageId="20" pageNumber="21">ARGENTINA</collectingCountry>
</taxonomicName>
: Buenos Aires, San Miguel,
<date id="FFFE86E34F36E603FD028259810FFCAB" box="[663,796,821,847]" pageId="20" pageNumber="21" value="1932-12-09">9-XII-1932</date>
and
<date id="FFFE86E34F36E603FCC3825981C7FCAB" box="[854,980,821,847]" pageId="20" pageNumber="21" value="1931-11-03">3-XI-1931</date>
, Williner S. J. col.
<taxonomicName id="4C40DBA04F36E603FB208259875DFCAA" box="[1205,1358,821,846]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="grimi">
<emphasis id="B9347C314F36E603FB208259875DFCAA" box="[1205,1358,821,846]" italics="true" pageId="20" pageNumber="21">Caenis grimi</emphasis>
</taxonomicName>
:
<typeStatus id="54FB1E814F36E603FACB825982DAFC93" pageId="20" pageNumber="21" type="holotype">holotype</typeStatus>
male imago (
<collectionCode id="ED5138E64F36E603FEFD823183A1FC93" box="[360,434,861,887]" pageId="20" pageNumber="21">IFML</collectionCode>
) from
<taxonomicName id="4C40DBA04F36E603FD94823180A2FC93" box="[513,689,861,887]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="29" phylum="Arthropoda" rank="species" species="argentina">
<collectingCountry id="F357E0B34F36E603FD94823180A2FC93" box="[513,689,861,887]" name="Argentina" pageId="20" pageNumber="21">ARGENTINA</collectingCountry>
</taxonomicName>
:
<collectingCountry id="F357E0B34F36E603FD2E82318136FC93" box="[699,805,861,887]" name="Taiwan" pageId="20" pageNumber="21">Formosa</collectingCountry>
, Laguna Yema,
<geoCoordinate id="EE74C6E44F36E603FC748231865FFC93" box="[993,1100,861,887]" direction="south" orientation="latitude" pageId="20" pageNumber="21" precision="925" value="-24.366667">S 24° 22'</geoCoordinate>
<geoCoordinate id="EE74C6E44F36E603FBF2823186F3FC93" box="[1127,1248,861,887]" direction="west" orientation="longitude" pageId="20" pageNumber="21" precision="925" value="-61.15">W 61° 09'</geoCoordinate>
,
<date id="FFFE86E34F36E603FB7E82318764FC93" box="[1259,1399,861,887]" pageId="20" pageNumber="21" value="1985-11-11">11-XI-1985</date>
, E. Domínguez col.; 50
<typeStatus id="54FB1E814F36E603FE1382E983E5FC7B" box="[390,502,901,927]" pageId="20" pageNumber="21" type="paratype">paratypes</typeStatus>
imagos of both sexes, data as
<typeStatus id="54FB1E814F36E603FCCF82E981D6FC7B" box="[858,965,901,927]" pageId="20" pageNumber="21" type="holotype">holotype</typeStatus>
.
</paragraph>
<paragraph id="8BFFA0234F36E603FF5382C183EBF98B" blockId="20.[151,1437,781,2007]" pageId="20" pageNumber="21">
Additional material. One reared male subimago and nymphal exuviae from
<taxonomicName id="4C40DBA04F36E603FBAB82C186FDFC23" box="[1086,1262,941,967]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="29" phylum="Arthropoda" rank="species" species="argentina">
<collectingCountry id="F357E0B34F36E603FBAB82C186FDFC23" box="[1086,1262,941,967]" name="Argentina" pageId="20" pageNumber="21">ARGENTINA</collectingCountry>
</taxonomicName>
: Misiones, P.P. Urugua-í, arroyo
<taxonomicName id="4C40DBA04F36E603FEF182B983A3FC0B" box="[356,432,981,1007]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="30" phylum="Arthropoda" rank="species" species="uruzu">Uruzú</taxonomicName>
,
<geoCoordinate id="EE74C6E44F36E603FE2982B98035FC0B" box="[444,550,981,1007]" direction="south" orientation="latitude" pageId="20" pageNumber="21" precision="925" value="-25.85">S 25º 51'</geoCoordinate>
<geoCoordinate id="EE74C6E44F36E603FDD682B980A9FC0B" box="[579,698,981,1007]" direction="west" orientation="longitude" pageId="20" pageNumber="21" precision="925" value="-54.166668">W 54º 10'</geoCoordinate>
,
<quantity id="4CB80DC64F36E603FD5282B98106FC0B" box="[711,789,981,1007]" metricMagnitude="2" metricUnit="m" metricValue="3.22" pageId="20" pageNumber="21" unit="m" value="322.0">322 m</quantity>
,
<date id="FFFE86E34F36E603FCB482B981DCFC0B" box="[801,975,981,1007]" pageId="20" pageNumber="21" value="1999-12-07" valueMax="1999-12-11" valueMin="1999-12-07">7-11-XII-1999</date>
, C. Molineri col.;
<specimenCount id="9D466BAA4F36E603FB3D82B986E4FC0B" box="[1192,1271,981,1007]" pageId="20" pageNumber="21" type="male">3 male</specimenCount>
imagos and 1 nymph Misiones,
<collectingCountry id="F357E0B34F36E603FEE4829183FCFBF3" box="[369,495,1021,1047]" name="Saint Pierre and Miquelon" pageId="20" pageNumber="21">San Pedro</collectingCountry>
, confluencia ríos Alegría y Pirai-Guazu,
<date id="FFFE86E34F36E603FC718291868BFBF3" box="[996,1176,1021,1047]" pageId="20" pageNumber="21" value="1998-11-22" valueMax="1998-11-23" valueMin="1998-11-22">22-23-XI-1998</date>
, E. Domínguez et al. cols.;
<specimenCount id="9D466BAA4F36E603FF4B85498340FBDB" box="[222,339,1061,1087]" pageId="20" pageNumber="21" type="female">11 female</specimenCount>
imagos Misiones,
<quantity id="4CB80DC64F36E603FDA18549806CFBDB" box="[564,639,1061,1087]" metricMagnitude="4" metricUnit="m" metricValue="2.5" pageId="20" pageNumber="21" unit="km" value="25.0">25 km</quantity>
S El Soberbio,
<date id="FFFE86E34F36E603FCA8854981D9FBDB" box="[829,970,1061,1087]" pageId="20" pageNumber="21" value="1998-11-21">21-XI-1998</date>
, E. Domínguez et al. cols.; 1 nymph,
<specimenCount id="9D466BAA4F36E603FA18854982C3FB83" pageId="20" pageNumber="21" type="male">1 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FE8385218390FB83" box="[278,387,1101,1127]" pageId="20" pageNumber="21" type="female">2 female</specimenCount>
imagos Misiones, Candelaria,
<quantity id="4CB80DC64F36E603FC9D85218159FB83" box="[776,842,1101,1127]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="20" pageNumber="21" unit="km" value="2.0">2 km</quantity>
E Bonpland, río del Camping,
<date id="FFFE86E34F36E603FB7B85218763FB83" box="[1262,1392,1101,1127]" pageId="20" pageNumber="21" value="1985-02-15">15-II-1985</date>
, E. Domínguez col.;
<specimenCount id="9D466BAA4F36E603FEF6851983A0FB6B" box="[355,435,1141,1167]" pageId="20" pageNumber="21" type="male">1 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FE7885198047FB6B" box="[493,596,1141,1167]" pageId="20" pageNumber="21" type="female">7 female</specimenCount>
imagos Misiones, Mado,
<date id="FFFE86E34F36E603FC128519861BFB6B" box="[903,1032,1141,1167]" pageId="20" pageNumber="21" value="1985-02-16">16-II-1985</date>
, E. Domínguez col.;
<specimenCount id="9D466BAA4F36E603FA9685198740FB6B" box="[1283,1363,1141,1167]" pageId="20" pageNumber="21" type="male">5 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FA18851982F4FB53" pageId="20" pageNumber="21" type="female">5 female</specimenCount>
imagos Misiones,
<quantity id="4CB80DC64F36E603FE5085F18003FB53" box="[453,528,1181,1207]" metricMagnitude="4" metricUnit="m" metricValue="1.0" pageId="20" pageNumber="21" unit="km" value="10.0">10 km</quantity>
NE de
<collectingCountry id="F357E0B34F36E603FDFF85F180E9FB53" box="[618,762,1181,1207]" name="Saint Vincent and the Grenadines" pageId="20" pageNumber="21">San Vicente</collectingCountry>
,
<collectionCode id="ED5138E64F36E603FC9385F18159FB53" box="[774,842,1181,1207]" pageId="20" pageNumber="21">INTA</collectionCode>
Cuartel Victoria,
<date id="FFFE86E34F36E603FB8885F186B9FB53" box="[1053,1194,1181,1207]" pageId="20" pageNumber="21" value="1986-11-30">30-XI-1986</date>
, E. Domínguez col.; 1 nymph Misiones, Puerto Mado, arroyo Yacutinga,
<date id="FFFE86E34F36E603FD6A85A981A0FB3B" box="[767,947,1221,1247]" pageId="20" pageNumber="21" value="1998-11-19" valueMax="1998-11-20" valueMin="1998-11-19">19-20-XI-1998</date>
, E. Domínguez et al. cols.;
<specimenCount id="9D466BAA4F36E603FB6285A98747FB3B" box="[1271,1364,1221,1247]" pageId="20" pageNumber="21" type="male">11 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FA1885A982F4FAE3" pageId="20" pageNumber="21" type="female">3 female</specimenCount>
imagos Misiones, P.N. Iguazú,
<date id="FFFE86E34F36E603FDC9858180F9FAE3" box="[604,746,1261,1287]" pageId="20" pageNumber="21" value="1998-11-26">26-XI-1998</date>
, río Iguazú, Puerto Canoas, Domínguez, Molineri &amp; Nieto cols.;
<specimenCount id="9D466BAA4F36E603FF488479833FFACB" box="[221,300,1301,1327]" pageId="20" pageNumber="21" type="male">9 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FEF0847983CAFACB" box="[357,473,1301,1327]" pageId="20" pageNumber="21" type="female">15 female</specimenCount>
imagos Misiones,
<quantity id="4CB80DC64F36E603FD2384798112FACB" box="[694,769,1301,1327]" metricMagnitude="4" metricUnit="m" metricValue="1.0" pageId="20" pageNumber="21" unit="km" value="10.0">10 km</quantity>
NE de
<collectingCountry id="F357E0B34F36E603FCCC847981FAFACB" box="[857,1001,1301,1327]" name="Saint Vincent and the Grenadines" pageId="20" pageNumber="21">San Vicente</collectingCountry>
,
<collectionCode id="ED5138E64F36E603FC608479862AFACB" box="[1013,1081,1301,1327]" pageId="20" pageNumber="21">INTA</collectionCode>
Cuartel Victoria,
<date id="FFFE86E34F36E603FA9F84798784FACB" box="[1290,1431,1301,1327]" pageId="20" pageNumber="21" value="1998-11-20">20-XI-1998</date>
, E. Domínguez et al. cols.;
<specimenCount id="9D466BAA4F36E603FE5884518008FAB3" box="[461,539,1341,1367]" pageId="20" pageNumber="21" type="male">6 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FDC1845180DBFAB3" box="[596,712,1341,1367]" pageId="20" pageNumber="21" type="female">20 female</specimenCount>
imagos
<collectingCountry id="F357E0B34F36E603FCBF845181AFFAB3" box="[810,956,1341,1367]" name="Uruguay" pageId="20" pageNumber="21">URUGUAY</collectingCountry>
: Salto Arapey,
<quantity id="4CB80DC64F36E603FBF8845186BAFAB3" box="[1133,1193,1341,1367]" metricMagnitude="3" metricUnit="m" metricValue="4.0" pageId="20" pageNumber="21" unit="km" value="4.0">4 km</quantity>
de Las Termas, Carbonell col.;
<specimenCount id="9D466BAA4F36E603FEB184098367FA9B" box="[292,372,1381,1407]" pageId="20" pageNumber="21" type="male">2 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FE2584098004FA9B" box="[432,535,1381,1407]" pageId="20" pageNumber="21" type="female">2 female</specimenCount>
imagos Cerro Largo, arroyo Quebracho (curso superior),
<date id="FFFE86E34F36E603FB5084098748FA9B" box="[1221,1371,1381,1407]" pageId="20" pageNumber="21" value="1959-03-04" valueMax="1959-03-08" valueMin="1959-03-04">4-8-III-1959</date>
, Carbonell col.;
<specimenCount id="9D466BAA4F36E603FEBF84E1839FFA43" box="[298,396,1421,1447]" pageId="20" pageNumber="21" type="male">30 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FE5884E18055FA43" box="[461,582,1421,1447]" pageId="20" pageNumber="21" type="female">30 female</specimenCount>
imagos Tacuarembó, arroyo Laureles,
<date id="FFFE86E34F36E603FBB184E186A2FA43" box="[1060,1201,1421,1447]" pageId="20" pageNumber="21" value="1954-11-10">10-XI-1954</date>
, Carbonell col.;
<specimenCount id="9D466BAA4F36E603FAEA84E182F4FA2B" pageId="20" pageNumber="21" type="female">50 female</specimenCount>
adults Salto, Paso Yacaré, arroyo Itapebi, Zolessi et al. cols.
<collectingCountry id="F357E0B34F36E603FC2284D98635FA2B" box="[951,1062,1461,1487]" name="Brazil" pageId="20" pageNumber="21">BRAZIL</collectingCountry>
: 3 nymphs, Nova Teutonia,
<quantity id="4CB80DC64F36E603FAE584D982AEFA13" metricMagnitude="5" metricUnit="m" metricValue="1.0" pageId="20" pageNumber="21" unit="km" value="100.0">100 km</quantity>
E. Cacado,
<geoCoordinate id="EE74C6E44F36E603FEDC84B183A1FA13" box="[329,434,1501,1527]" direction="south" orientation="latitude" pageId="20" pageNumber="21" precision="925" value="-27.183332">S 27° 11'</geoCoordinate>
<geoCoordinate id="EE74C6E44F36E603FE5884B18056FA13" box="[461,581,1501,1527]" direction="west" orientation="longitude" pageId="20" pageNumber="21" precision="925" value="-52.383335">W 52° 23'</geoCoordinate>
,
<date id="FFFE86E34F36E603FDC584B180A7FA13" box="[592,692,1501,1527]" pageId="20" pageNumber="21" value="1962-03">III-1962</date>
; 1 nymph, Seara,
<geoCoordinate id="EE74C6E44F36E603FC1184B181FDFA13" box="[900,1006,1501,1527]" direction="south" orientation="latitude" pageId="20" pageNumber="21" precision="925" value="-27.15">S 27° 09'</geoCoordinate>
<geoCoordinate id="EE74C6E44F36E603FB9C84B18693FA13" box="[1033,1152,1501,1527]" direction="west" orientation="longitude" pageId="20" pageNumber="21" precision="925" value="-52.25">W 52° 15'</geoCoordinate>
,
<date id="FFFE86E34F36E603FB1984B18704FA13" box="[1164,1303,1501,1527]" pageId="20" pageNumber="21" value="1962-04-18">18-IV-1962</date>
; 2 nymphs, Tupitinga, Santa Cruz Riv.,
<geoCoordinate id="EE74C6E44F36E603FE4A87698058F9FB" box="[479,587,1541,1567]" direction="south" orientation="latitude" pageId="20" pageNumber="21" precision="925" value="-27.5">S 27° 30'</geoCoordinate>
<geoCoordinate id="EE74C6E44F36E603FDFD876980F2F9FB" box="[616,737,1541,1567]" direction="west" orientation="longitude" pageId="20" pageNumber="21" precision="925" value="-51.2">W 51° 12'</geoCoordinate>
,
<date id="FFFE86E34F36E603FD788769814DF9FB" box="[749,862,1541,1567]" pageId="20" pageNumber="21" value="1962-12">XII-1962</date>
; Rio Grande do Sul, Arroio do Hilario,
<geoCoordinate id="EE74C6E44F36E603FAA58769878EF9FB" box="[1328,1437,1541,1567]" direction="south" orientation="latitude" pageId="20" pageNumber="21" precision="925" value="-30.716667">S 30° 43'</geoCoordinate>
<geoCoordinate id="EE74C6E44F36E603FF3887418335F9A3" box="[173,294,1581,1607]" direction="west" orientation="longitude" pageId="20" pageNumber="21" precision="925" value="-53.5">W 53° 30'</geoCoordinate>
,
<date id="FFFE86E34F36E603FEA48741838BF9A3" box="[305,408,1581,1607]" pageId="20" pageNumber="21" value="1964-11">XI-1964</date>
. All the material in
<collectionCode id="ED5138E64F36E603FD15874180DAF9A3" box="[640,713,1581,1607]" pageId="20" pageNumber="21">IFML</collectionCode>
, except
<specimenCount id="9D466BAA4F36E603FCBD87418196F9A3" box="[808,901,1581,1607]" pageId="20" pageNumber="21" type="male">20 male</specimenCount>
and
<specimenCount id="9D466BAA4F36E603FC2B87418621F9A3" box="[958,1074,1581,1607]" pageId="20" pageNumber="21" type="female">50 female</specimenCount>
imagos in
<collectionCode id="ED5138E64F36E603FB2687418715F9A3" box="[1203,1286,1581,1607]" pageId="20" pageNumber="21">MCFU</collectionCode>
and nymphs from
<collectingCountry id="F357E0B34F36E603FF428739830CF98B" box="[215,287,1621,1647]" name="Brazil" pageId="20" pageNumber="21">Brazil</collectingCountry>
in col. Malzacher.
</paragraph>
<paragraph id="8BFFA0234F36E603FF5387118064F95B" blockId="20.[151,1437,781,2007]" pageId="20" pageNumber="21">
Imagos.
<bibRefCitation id="EFD1DDD24F36E603FEB8871183C9F973" author="Navas" box="[301,474,1661,1687]" pageId="20" pageNumber="31" refString="Navas, L. (1932) Insectos de la Argentina. Revista de la Academia de Ciencias de Zaragoza, 16, 87 - 120." type="journal article" year="1932" yearSuffix="a">Navas (1932a)</bibRefCitation>
descriptions are uninformative, but
<bibRefCitation id="EFD1DDD24F36E603FC198711864DF973" author="Malzacher" box="[908,1118,1661,1687]" pageId="20" pageNumber="31" refString="Malzacher, P. (2001) South and Central American Caenis species with rounded forceps tips (Insecta: Ephemeroptera: Caenidae). Stuttgarter Beitrage zur Naturkunde Ser. A, 626, 1 - 20." type="journal article" year="2001">Malzacher (2001)</bibRefCitation>
give a complete treatment of male and female imagos (as
<taxonomicName id="4C40DBA04F36E603FD9087C98075F95A" box="[517,614,1701,1726]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="grimi">
<emphasis id="B9347C314F36E603FD9087C98075F95A" box="[517,614,1701,1726]" italics="true" pageId="20" pageNumber="21">C. grimi</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="8BFFA0234F36E602FF5387A182ABFEB6" blockId="20.[151,1437,781,2007]" lastBlockId="21.[151,1437,152,338]" lastPageId="21" lastPageNumber="22" pageId="20" pageNumber="21">
Mature nymph (
<figureCitation id="137BBCA64F36E603FE1787A183FAF903" box="[386,489,1741,1767]" captionStart="FIGURES 162 164" captionStartId="25.[151,269,1409,1433]" captionTargetBox="[365,1220,182,1400]" captionTargetId="figure@25.[365,1221,182,1401]" captionTargetPageId="25" captionText="FIGURES 162 164. Nymph, general view: 162, C. tenella; 163, C. plaumanni; 164, C. uruzu." httpUri="https://zenodo.org/record/179934/files/figure.png" pageId="20" pageNumber="21">Fig. 162</figureCitation>
). Length of female: body,
<quantity id="4CB80DC64F36E603FC8F87A18164F903" box="[794,887,1741,1767]" metricMagnitude="-3" metricUnit="m" metricValue="3.8" pageId="20" pageNumber="21" unit="mm" value="3.8">3.8 mm</quantity>
; caudal filaments,
<quantity id="4CB80DC64F36E603FBC587A186F3F903" box="[1104,1248,1741,1767]" metricMagnitude="-3" metricUnit="m" metricValue="2.65" metricValueMax="2.8" metricValueMin="2.5" pageId="20" pageNumber="21" unit="mm" value="2.65" valueMax="2.8" valueMin="2.5">2.52.8 mm</quantity>
; length of male: body,
<quantity id="4CB80DC64F36E603FF7487998351F8EB" box="[225,322,1781,1807]" metricMagnitude="-3" metricUnit="m" metricValue="2.7" pageId="20" pageNumber="21" unit="mm" value="2.7">2.7 mm</quantity>
; caudal filaments, 2.0 mm. General coloration yellowish to brownish. Head shaded gray on occiput and between antennae (Fig. 168), stronger on a transverse band behind lateral ocelli; venter of head paler than dorsum; antennae whitish, with strong setae on scape and pedicel; hind margin of the head with short bifid setules. Mouthparts: clypeus (
<figureCitation id="137BBCA64F36E603FD10860180FFF863" box="[645,748,1901,1927]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="20" pageNumber="21">Fig. 123</figureCitation>
) with strong setae directed posteriorly, labrum as in
<figureCitation id="137BBCA64F36E603FAF8860182D6F84B" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="20" pageNumber="21">Fig. 123</figureCitation>
, sometimes with small bifid setae; labium (
<figureCitation id="137BBCA64F36E603FD5A86F98126F84B" box="[719,821,1941,1967]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="20" pageNumber="21">Fig. 124</figureCitation>
) with short and conic distal segment on palpi (segment II of labial palp 1.802.43 times the length of segment III), and large subquadrate glossae. Thorax. Pro- and mesonotum brownish-yellow with pale blotches, with very few grayish markings. Anterolateral margin of pronotum rounded and with setae (
<figureCitation id="137BBCA64F37E602FDA381AC808EFF3E" box="[566,669,192,218]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="21" pageNumber="22">Fig. 125</figureCitation>
). Wingbuds shaded with gray on posterior half. Metanotum whitish. Legs (
<figureCitation id="137BBCA64F37E602FE85818483ADFEE6" box="[272,446,232,258]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="21" pageNumber="22">Figs. 130132</figureCitation>
): forelegs yellowish, middle and hind legs whitish; shaded with gray on coxae; coxal projections rounded with serrated margin (
<figureCitation id="137BBCA64F37E602FD18807C8128FECE" box="[653,827,272,298]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="21" pageNumber="22">Figs. 127128</figureCitation>
); fore femora with subdistal transverse row of dorsal
</paragraph>
<caption id="DF3FF0AB4F37E602FF0286528052F804" httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="21" pageNumber="22" targetBox="[164,1415,400,1819]" targetPageId="21">
<paragraph id="8BFFA0234F37E602FF0286528052F804" blockId="21.[151,1436,1854,2016]" pageId="21" pageNumber="22">
<emphasis id="B9347C314F37E602FF028652836AF8B2" bold="true" box="[151,377,1854,1878]" pageId="21" pageNumber="22">FIGURES 123138.</emphasis>
<taxonomicName id="4C40DBA04F37E602FEEA8653800BF8B2" box="[383,536,1855,1878]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="21" pageNumber="22" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F37E602FEEA8653800BF8B2" box="[383,536,1855,1878]" italics="true" pageId="21" pageNumber="22">Caenis tenella</emphasis>
</taxonomicName>
, nymph. 123, labrum, d.v.; 124, labium, v.v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v.v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw.
</paragraph>
</caption>
<paragraph id="8BFFA0234F34E601FF0281F48047FDA6" blockId="22.[151,1436,152,578]" pageId="22" pageNumber="23">
setae (
<figureCitation id="137BBCA64F34E601FF7181F48380FF56" box="[228,403,152,178]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Figs. 129130</figureCitation>
), middle and hind femora with few dorsal setae, mainly along posterior margin (
<figureCitation id="137BBCA64F34E601FAF481F48312FF3E" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Figs. 131132</figureCitation>
); fore tarsus with one row of robust simple setae; middle tarsus with one row of serrated setae; hind tarsus with one row of simple setae and one row of serrated setae; tarsal claws with small denticles, more numerous on hind claws (
<figureCitation id="137BBCA64F34E601FE56807C8063FECE" box="[451,624,272,298]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Figs. 136138</figureCitation>
), apex moderately to strongly curved. Abdomen whitish with yellowish zones on median projection of tergum II, lateral zones of terga VIIIX, and on tergum X (
<figureCitation id="137BBCA64F34E601FAB68054879DFEB6" box="[1315,1422,312,338]" captionStart="FIGURES 172 178" captionStartId="27.[151,269,1913,1937]" captionTargetBox="[375,1213,194,1887]" captionTargetId="figure@27.[373,1213,194,1889]" captionTargetPageId="27" captionText="FIGURES 172 178. Nymph, abdominal terga: 172, C. argentina; 173, C. burmeisteri; 174, C. dominguezi; 175, C. ludicra; 176, C. tenella; 177, C. plaumanni; 178, C. uruzu." httpUri="https://zenodo.org/record/179936/files/figure.png" pageId="22" pageNumber="23">Fig. 176</figureCitation>
); median projection of abdominal tergum II small (
<figureCitation id="137BBCA64F34E601FD7B800C814BFE9E" box="[750,856,352,378]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Fig. 126</figureCitation>
). Abdominal sterna whitish without marks (
<figureCitation id="137BBCA64F34E601FAF8800C82D4FE46" captionStart="FIGURES 179 184" captionStartId="28.[151,269,1290,1314]" captionTargetBox="[151,1435,178,1265]" captionTargetId="figure@28.[151,1436,160,1266]" captionTargetPageId="28" captionText="FIGURES 179 184. Nymph, abdominal sterna: 179, C. argentina; 180, C. burmeisteri; 181, C. dominguezi; 182, C. tenella; 183, C. plaumanni; 184, C. uruzu." httpUri="https://zenodo.org/record/179937/files/figure.png" pageId="22" pageNumber="23">Fig. 182</figureCitation>
). Posterolateral pointed projections on abdominal segments IIIIX. Abdominal gill II (
<figureCitation id="137BBCA64F34E601FB2D80E48708FE46" box="[1208,1307,392,418]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Fig. 134</figureCitation>
) yellowish translucent very slightly shaded with gray, dorsum only with simple setae, stout setae (
<figureCitation id="137BBCA64F34E601FB1380DC86FAFE2E" box="[1158,1257,432,458]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Fig. 133</figureCitation>
) present on the ventral submarginal row; gills IIIVI shaded completely with grayish, with a blackish spot at the base (visible through operculate gills,
<figureCitation id="137BBCA64F34E601FE29836C8031FDFE" box="[444,546,512,538]" captionStart="FIGURES 172 178" captionStartId="27.[151,269,1913,1937]" captionTargetBox="[375,1213,194,1887]" captionTargetId="figure@27.[373,1213,194,1889]" captionTargetPageId="27" captionText="FIGURES 172 178. Nymph, abdominal terga: 172, C. argentina; 173, C. burmeisteri; 174, C. dominguezi; 175, C. ludicra; 176, C. tenella; 177, C. plaumanni; 178, C. uruzu." httpUri="https://zenodo.org/record/179936/files/figure.png" pageId="22" pageNumber="23">Fig. 176</figureCitation>
). Sternum IX apically with a deep V-shaped notch (
<figureCitation id="137BBCA64F34E601FB17836C86F5FDFE" box="[1154,1254,512,538]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="22" pageNumber="23">Fig. 135</figureCitation>
) and with bifid setules on hind margin. Cerci whitish.
</paragraph>
<caption id="DF3FF0AB4F34E601FF0287E781DBF90C" httpUri="https://zenodo.org/record/179932/files/figure.png" pageId="22" pageNumber="23" targetBox="[187,1404,641,1645]" targetPageId="22">
<paragraph id="8BFFA0234F34E601FF0287E781DBF90C" blockId="22.[151,1436,1675,1768]" pageId="22" pageNumber="23">
<emphasis id="B9347C314F34E601FF0287E7836BF947" bold="true" box="[151,376,1675,1699]" pageId="22" pageNumber="23">FIGURES 139157.</emphasis>
Left and right mandibles, d.v.: 139140,
<taxonomicName id="4C40DBA04F34E601FCD287E781C7F946" box="[839,980,1675,1698]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="argentina">
<emphasis id="B9347C314F34E601FCD287E781C7F946" box="[839,980,1675,1698]" italics="true" pageId="22" pageNumber="23">C. argentina</emphasis>
</taxonomicName>
; 141142,
<taxonomicName id="4C40DBA04F34E601FBCE87E786EEF946" box="[1115,1277,1675,1698]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="burmeisteri">
<emphasis id="B9347C314F34E601FBCE87E786EEF946" box="[1115,1277,1675,1698]" italics="true" pageId="22" pageNumber="23">C. burmeisteri</emphasis>
</taxonomicName>
; 143144,
<taxonomicName id="4C40DBA04F34E601FA1187E78301F921" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="dominguezi">
<emphasis id="B9347C314F34E601FA1187E78301F921" italics="true" pageId="22" pageNumber="23">C. dominguezi</emphasis>
</taxonomicName>
; 145146,
<taxonomicName id="4C40DBA04F34E601FE1C87C283EBF921" box="[393,504,1710,1733]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="gonseri">
<emphasis id="B9347C314F34E601FE1C87C283EBF921" box="[393,504,1710,1733]" italics="true" pageId="22" pageNumber="23">C. gonseri</emphasis>
</taxonomicName>
; 147148,
<taxonomicName id="4C40DBA04F34E601FDFA87C280C5F921" box="[623,726,1710,1733]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F34E601FDFA87C280C5F921" box="[623,726,1710,1733]" italics="true" pageId="22" pageNumber="23">C. tenella</emphasis>
</taxonomicName>
; 149150,
<taxonomicName id="4C40DBA04F34E601FCDB87C281AAF921" box="[846,953,1710,1733]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="ludicra">
<emphasis id="B9347C314F34E601FCDB87C281AAF921" box="[846,953,1710,1733]" italics="true" pageId="22" pageNumber="23">C. ludicra</emphasis>
</taxonomicName>
; 151152,
<taxonomicName id="4C40DBA04F34E601FBA787C286D1F921" box="[1074,1218,1710,1733]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="plaumanni">
<emphasis id="B9347C314F34E601FBA787C286D1F921" box="[1074,1218,1710,1733]" italics="true" pageId="22" pageNumber="23">C. plaumanni</emphasis>
</taxonomicName>
; 153154,
<taxonomicName id="4C40DBA04F34E601FAAF87C28786F921" box="[1338,1429,1710,1733]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="uruzu">
<emphasis id="B9347C314F34E601FAAF87C28786F921" box="[1338,1429,1710,1733]" italics="true" pageId="22" pageNumber="23">C. uruzu</emphasis>
</taxonomicName>
. Hypopharynx, v.v.: 155,
<taxonomicName id="4C40DBA04F34E601FE0B87BD802BF90C" box="[414,568,1745,1768]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="burmeisteri">
<emphasis id="B9347C314F34E601FE0B87BD802BF90C" box="[414,568,1745,1768]" italics="true" pageId="22" pageNumber="23">C. burmeisteri</emphasis>
</taxonomicName>
; 156,
<taxonomicName id="4C40DBA04F34E601FDE987BD8105F90C" box="[636,790,1745,1768]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="dominguezi">
<emphasis id="B9347C314F34E601FDE987BD8105F90C" box="[636,790,1745,1768]" italics="true" pageId="22" pageNumber="23">C. dominguezi</emphasis>
</taxonomicName>
; 157,
<taxonomicName id="4C40DBA04F34E601FCCC87BD81D3F90C" box="[857,960,1745,1768]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F34E601FCCC87BD81D3F90C" box="[857,960,1745,1768]" italics="true" pageId="22" pageNumber="23">C. tenella</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="8BFFA0234F34E600FF538677833EFE2E" blockId="22.[151,1436,1819,2005]" lastBlockId="23.[151,1437,152,778]" lastPageId="23" lastPageNumber="24" pageId="22" pageNumber="23">
Diagnosis.
<taxonomicName id="4C40DBA04F34E601FEDE867083E6F8D1" box="[331,501,1820,1845]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F34E601FEDE867083E6F8D1" box="[331,501,1820,1845]" italics="true" pageId="22" pageNumber="23">Caenis tenella</emphasis>
</taxonomicName>
can be distinguished from the other species of
<taxonomicName id="4C40DBA04F34E601FBB186708665F8D1" box="[1060,1142,1820,1845]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="22" pageNumber="23" phylum="Arthropoda" rank="genus">
<emphasis id="B9347C314F34E601FBB186708665F8D1" box="[1060,1142,1820,1845]" italics="true" pageId="22" pageNumber="23">Caenis</emphasis>
</taxonomicName>
by the following combination of characters. In the imago: 1) general coloration whitish-yellow; 2) prosternal triangle anteriorly elongated, pointed to slightly rounded in males, somewhat wider and rounded apically in females; 3) median filament on abdominal tergum II absent; 4) fore legs 0.50.6 times length of body; 5) forceps apically rounded; 6) central sclerite of styliger dome-shaped; 7) apophyses of styliger sclerite bent inwards; 8) penes with projected and pointed lateral lobes; 9) color of katepisternum similar to the rest of thoracic sclerites. In the nymph: 1) head color pattern as in Fig. 168, hind margin with short bifid setules; 2) meso- and metacoxal processes present but small (
<figureCitation id="137BBCA64F35E600FE7281848087FEE6" box="[487,660,232,258]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="23" pageNumber="24">Figs. 127128</figureCitation>
); 3) middle tarsus generally with one row of serrated setae; 4) tarsal claws with small denticles, apex curved (
<figureCitation id="137BBCA64F35E600FD31807C8141FECE" box="[676,850,272,298]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="23" pageNumber="24">Figs. 136138</figureCitation>
); 5) labrum with slightly rounded lateral margins, clypeus with strong setae (
<figureCitation id="137BBCA64F35E600FE408054802EFEB6" box="[469,573,312,338]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="23" pageNumber="24">Fig. 123</figureCitation>
); 6) labial glossae large and subquadrate (
<figureCitation id="137BBCA64F35E600FBA18054868FFEB6" box="[1076,1180,312,338]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="23" pageNumber="24">Fig. 124</figureCitation>
), segment II of labial palp 1.802.43 times the length of segment III (
<figureCitation id="137BBCA64F35E600FD5E800C8121FE9E" box="[715,818,352,378]" captionStart="FIGURES 123 138" captionStartId="21.[151,269,1854,1878]" captionTargetBox="[164,1415,400,1819]" captionTargetId="figure@21.[151,1436,397,1828]" captionTargetPageId="21" captionText="FIGURES 123 138. Caenis tenella, nymph. 123, labrum, d. v.; 124, labium, v. v. (palpus and setae at the right, omitted); 125, pronotum, left half; 126, detail of posteromedian projection of abdominal tergum II; 127, middle coxa; 128, hind coxa; 129, setae on dorsal transverse row of fore femora; 130, foreleg; 131, middle leg; 132, hind leg; 133, microtrichia of submarginal ventral row of operculate gill; 134, operculate gill; 135, IX sternum, v. v. (a, female; b, male); 136, foreclaw; 137, middle claw; 138, hind claw." httpUri="https://zenodo.org/record/179931/files/figure.png" pageId="23" pageNumber="24">Fig. 124</figureCitation>
); 7) lingua of hypopharynx relatively large and with concave fore margin (
<figureCitation id="137BBCA64F35E600FE0C80E48012FE46" box="[409,513,392,418]" captionStart="FIGURES 139 157" captionStartId="22.[151,269,1675,1699]" captionTargetBox="[187,1404,641,1645]" captionTargetId="figure@22.[173,1413,634,1651]" captionTargetPageId="22" captionText="FIGURES 139 157. Left and right mandibles, d. v.: 139 140, C. argentina; 141 142, C. burmeisteri; 143 144, C. dominguezi; 145 146, C. gonseri; 147 148, C. tenella; 149 150, C. ludicra; 151 152, C. plaumanni; 153 154, C. uruzu. Hypopharynx, v. v.: 155, C. burmeisteri; 156, C. dominguezi; 157, C. tenella." httpUri="https://zenodo.org/record/179932/files/figure.png" pageId="23" pageNumber="24">Fig. 157</figureCitation>
); 8) IX sternum apically with a deep V-shaped notch and with bifid setules on hind margin.
</paragraph>
<paragraph id="8BFFA0234F35E600FF5380B4810CFD5E" blockId="23.[151,1437,152,778]" pageId="23" pageNumber="24">
Discussion.
<bibRefCitation id="EFD1DDD24F35E600FEC280B483E4FE16" author="Navas" box="[343,503,472,498]" pageId="23" pageNumber="31" refString="Navas, L. (1932) Insectos de la Argentina. Revista de la Academia de Ciencias de Zaragoza, 16, 87 - 120." type="journal article" year="1932">Navas (1932)</bibRefCitation>
described this species from a pair of imagos of both sexes. As the
<typeStatus id="54FB1E814F35E600FA8B80B4874FFE16" box="[1310,1372,472,498]" pageId="23" pageNumber="24">types</typeStatus>
have been lost, serious doubts about the identity of the species existed (
<bibRefCitation id="EFD1DDD24F35E600FC0E836C8637FDFE" author="Thew" box="[923,1060,512,538]" pageId="23" pageNumber="31" refString="Thew, T. B. (1960) Revision of the genera of the family Caenidae (Ephemeroptera). Transactions of the American Entomological Society, 86, 187 - 205." type="journal article" year="1960">Thew 1960</bibRefCitation>
,
<bibRefCitation id="EFD1DDD24F35E600FBA4836C86D5FDFE" author="Soldan" box="[1073,1222,512,538]" pageId="23" pageNumber="31" refString="Soldan, T. (1986) A revision of the Caenidae with ocellar tubercles in the nymphal stage (Ephemeroptera). Acta Universitatis Carolinae, Biologica (1982 - 1984), 289 - 362." type="book chapter" year="1986">Soldán 1986</bibRefCitation>
,
<bibRefCitation id="EFD1DDD24F35E600FB46836C82C5FDA6" author="Dominguez" pageId="23" pageNumber="31" refString="Dominguez, E., Molineri, C., Pescador, M., Hubbard, M. D. &amp; Nieto, C. (2006) Aquatic Biodiversity in Latin America, Vol. 1: Ephemeroptera of South America. Pensoft, Sofia-Moscow, 646 p." type="book" year="2006">Domínguez et al. 2006</bibRefCitation>
), but the pinned
<typeStatus id="54FB1E814F35E600FE0B83448016FDA6" box="[414,517,552,578]" pageId="23" pageNumber="24" type="holotype">holotype</typeStatus>
and allotype of
<taxonomicName id="4C40DBA04F35E600FD5D8344865FFDA6" authority="Navas (1932)" authorityName="Navas" authorityYear="1932" box="[712,1100,552,578]" class="Insecta" family="Caenidae" genus="Eurycaenis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ephemeroptera" pageId="23" pageNumber="24" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F35E600FD5D834481B7FDA5" box="[712,932,552,577]" italics="true" pageId="23" pageNumber="24">Eurycaenis tenella</emphasis>
<bibRefCitation id="EFD1DDD24F35E600FC398344865FFDA6" author="Navas" box="[940,1100,552,578]" pageId="23" pageNumber="31" refString="Navas, L. (1932) Insectos de la Argentina. Revista de la Academia de Ciencias de Zaragoza, 16, 87 - 120." type="journal article" year="1932">Navas (1932)</bibRefCitation>
</taxonomicName>
were recently discovered in Salta (
<taxonomicName id="4C40DBA04F35E600FF77833C834DFD8E" box="[226,350,592,618]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="23" pageNumber="29" phylum="Arthropoda" rank="species" species="argentina">
<collectingCountry id="F357E0B34F35E600FF77833C834DFD8E" box="[226,350,592,618]" name="Argentina" pageId="23" pageNumber="24">Argentina</collectingCountry>
</taxonomicName>
). The examination of these
<typeStatus id="54FB1E814F35E600FD3D833C80F5FD8E" box="[680,742,592,618]" pageId="23" pageNumber="24">types</typeStatus>
and those of
<taxonomicName id="4C40DBA04F35E600FC1C833C8712FD8E" authority="Malzacher (2001)" authorityName="Malzacher" authorityYear="2001" box="[905,1281,592,618]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="23" pageNumber="24" phylum="Arthropoda" rank="species" species="grimi">
<emphasis id="B9347C314F35E600FC1C833C8630FD8D" box="[905,1059,592,617]" italics="true" pageId="23" pageNumber="24">Caenis grimi</emphasis>
<bibRefCitation id="EFD1DDD24F35E600FBBE833C8712FD8E" author="Malzacher" box="[1067,1281,592,618]" pageId="23" pageNumber="31" refString="Malzacher, P. (2001) South and Central American Caenis species with rounded forceps tips (Insecta: Ephemeroptera: Caenidae). Stuttgarter Beitrage zur Naturkunde Ser. A, 626, 1 - 20." type="journal article" year="2001">Malzacher (2001)</bibRefCitation>
</taxonomicName>
, showed that both species are the same, and are here proposed as subjective synonyms. Thus the new combination
<taxonomicName id="4C40DBA04F35E600FADE83148359FD5E" authority="Navas" authorityName="Navas" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="23" pageNumber="24" phylum="Arthropoda" rank="species" species="tenella">
<emphasis id="B9347C314F35E600FADE831482F4FD5D" italics="true" pageId="23" pageNumber="24">Caenis tenella</emphasis>
(Navás)
</taxonomicName>
is created to accommodate this species.
</paragraph>
<paragraph id="8BFFA0234F35E600FF5383A482DCFCEE" blockId="23.[151,1437,152,778]" pageId="23" pageNumber="24">
Distribution (
<figureCitation id="137BBCA64F35E600FEF383A483DCFD06" box="[358,463,712,738]" captionStart="FIGURES 185 188" captionStartId="29.[151,269,1964,1988]" captionText="FIGURES 185 188. Distribution maps." pageId="23" pageNumber="24">Fig. 186</figureCitation>
).
<taxonomicName id="4C40DBA04F35E600FE7083A4804AFD06" box="[485,601,712,738]" class="Insecta" family="Caenidae" genus="Caenis" kingdom="Animalia" order="Ephemeroptera" pageId="23" pageNumber="29" phylum="Arthropoda" rank="species" species="argentina">
<collectingCountry id="F357E0B34F35E600FE7083A4804AFD06" box="[485,601,712,738]" name="Argentina" pageId="23" pageNumber="24">Argentina</collectingCountry>
</taxonomicName>
(
<collectingCountry id="F357E0B34F35E600FDFE83A480C5FD06" box="[619,726,712,738]" name="Taiwan" pageId="23" pageNumber="24">Formosa</collectingCountry>
, Misiones, Buenos Aires),
<collectingCountry id="F357E0B34F35E600FB8E83A48690FD06" box="[1051,1155,712,738]" name="Uruguay" pageId="23" pageNumber="24">Uruguay</collectingCountry>
,
<collectingCountry id="F357E0B34F35E600FB0483A486CAFD06" box="[1169,1241,712,738]" name="Brazil" pageId="23" pageNumber="24">Brazil</collectingCountry>
(Rio Grande do Sul).
</paragraph>
</subSubSection>
</treatment>
</document>