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<mods:title id="74A10FB1B343DE12981825D93187A2AE">Reclassification of Cybistrinae Sharp, 1880 in the Neotropical Region (Coleoptera, Adephaga, Dytiscidae), with description of new taxa</mods:title>
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<mods:affiliation id="8382EB539B727DECFC1570B557232640">Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131 - 0001, USA</mods:affiliation>
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<mods:namePart id="F7111A741CEA0C99766519A7336E6985">Michat, Mariano C.</mods:namePart>
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<mods:affiliation id="2401044BDA453982AFEFFB50301A887C">Instituto de Biodiversidad y Biologia Experimental y Aplicada, CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina</mods:affiliation>
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<mods:affiliation id="C262BF923B680ED3BA9B0EB56134A35F">Laboratorio de Entomologia, Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasi</mods:affiliation>
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&quot;
<taxonomicName id="254DAA9BE1B95389943C86D1298DDABD" ID-CoL="5MNZ" LSID="48CC716A-2E36-5B0F-B94A-97BF0A249787" authority="species &quot; Ribera et al. 2008" authorityName="species ” Ribera et al." authorityYear="2008" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="genus">Megadytes species&quot; Ribera et al. 2008</taxonomicName>
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<paragraph id="CEF83031EDD9E2B01E1AFB197E154006" pageId="0" pageNumber="125">
<figureCitation id="80B22C305F9FD39FD108BD1B94412705" captionStart="Figures 914" captionStartId="F2" captionText="Figures 9 - 14. Neotropical Cybistrinae species, habitus 9 Cybister festae 10 Cybister puncticollis 11 Nilssondytes diversus 12 Megadytes parvus 13 Megadytes latus 14 species &quot; IR 57 &quot; (Ribera et al. 2008). Scale bar: 10.0 mm." figureDoi="10.3897/zookeys.1188.110081.figures9-14" httpUri="https://binary.pensoft.net/fig/963584" pageId="0" pageNumber="125">Figs 14</figureCitation>
<figureCitation id="C047DEA357347604261688DD30E342E8" captionStart="Figures 1529" captionStartId="F3" captionText="Figures 15 - 29. Neotropical Cybistrinae species, metatarsal claws and tarsomere VI of males and females 15, 16 Cybister festae 17, 18 Cybister puncticollis 19, 20 Nilssondytes diversus 21, 22 Megadytes latus 23, 24 Megadytes parvus 25 species &quot; IR 57 &quot; (Ribera et al. 2008) 26, 27 Paramegadytes glaucus 28, 29 Metaxydytes fraternus. Scale bars: 1.0 mm." figureDoi="10.3897/zookeys.1188.110081.figures15-29" httpUri="https://binary.pensoft.net/fig/963585" pageId="0" pageNumber="125">, 25</figureCitation>
<figureCitation id="DBEE2A794AEF7CC912619B1D9F25C253" captionStart="Figures 3050" captionStartId="F4" captionText="Figures 30 - 50. Neotropical Cybistrinae species, male genitalia 30 - 32 Cybister festae: 30 median lobe, right lateral aspect 31 median lobe, ventral aspect 32 right lateral lobe, right lateral aspect 33 - 35 Cybister puncticollis: 33 median lobe, right lateral aspect 34 median lobe, ventral aspect 35 right lateral lobe, right lateral aspect 36 - 38 Nilssondytes diversus: 36 median lobe, right lateral aspect 37 median lobe, ventral aspect 38 right lateral lobe, right lateral aspect 39 - 43 Megadytes parvus: 39 median lobe, right lateral aspect 40 median lobe, ventral aspect 41 right lateral lobe, right lateral aspect 42 apex of median lobe, right lateral aspect 43 apex of median lobe, ventral aspect 44 - 47 Megadytes latus: 44 median lobe, right lateral aspect 45 median lobe, ventral aspect 46 right lateral lobe, right lateral aspect 47 apex of median lobe, ventral aspect 48 - 50 species &quot; IR 57 &quot; (Ribera et al. 2008): 48 median lobe, right lateral aspect 49 median lobe, ventral aspect 50 right lateral lobe, right lateral aspect." figureDoi="10.3897/zookeys.1188.110081.figures30-50" httpUri="https://binary.pensoft.net/fig/963586" pageId="0" pageNumber="125">, 48-50</figureCitation>
</paragraph>
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<paragraph id="B306336B4316D33A1E7C7E248A98CF72" pageId="0" pageNumber="125">
<taxonomicName id="7E64679A6E897AA03057461C12D3F21B" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="genus">Megadytes</taxonomicName>
species IR57:
<bibRefCitation id="C1786E2C8C4EAFA9F2372F77BF64B91D" DOI="https://doi.org/10.1111/j.1096-0031.2007.00192.x" author="Ribera, I" journalOrPublisher="Cladistics" pageId="0" pageNumber="125" pagination="563 - 590" refId="B35" refString="Ribera, I, Vogler, AP, Balke, M, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24 (4): 563 - 590, DOI: https://doi.org/10.1111/j.1096-0031.2007.00192.x" title="Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae)." url="https://doi.org/10.1111/j.1096-0031.2007.00192.x" volume="24" year="2008">Ribera et al. 2008</bibRefCitation>
: 25.
</paragraph>
</subSubSection>
<subSubSection id="08D6E2BD8682E1FA490DC9C8D29F04DA" pageId="0" pageNumber="125" type="discussion">
<paragraph id="4E5CE11BE4C4D5ACE3AA00515DFC27D6" pageId="0" pageNumber="125">Discussion.</paragraph>
<paragraph id="2773062DEBCB5D20B962A557A3D34014" pageId="0" pageNumber="125">
This single male specimen of a cybistrine from Peru presents some problems. It appears to be an undescribed species based on the male genitalia (Figs
<figureCitation id="E87CEE4EC0BD7A46B3128BB4F39D335D" captionStart="Figures 3050" captionStartId="F4" captionText="Figures 30 - 50. Neotropical Cybistrinae species, male genitalia 30 - 32 Cybister festae: 30 median lobe, right lateral aspect 31 median lobe, ventral aspect 32 right lateral lobe, right lateral aspect 33 - 35 Cybister puncticollis: 33 median lobe, right lateral aspect 34 median lobe, ventral aspect 35 right lateral lobe, right lateral aspect 36 - 38 Nilssondytes diversus: 36 median lobe, right lateral aspect 37 median lobe, ventral aspect 38 right lateral lobe, right lateral aspect 39 - 43 Megadytes parvus: 39 median lobe, right lateral aspect 40 median lobe, ventral aspect 41 right lateral lobe, right lateral aspect 42 apex of median lobe, right lateral aspect 43 apex of median lobe, ventral aspect 44 - 47 Megadytes latus: 44 median lobe, right lateral aspect 45 median lobe, ventral aspect 46 right lateral lobe, right lateral aspect 47 apex of median lobe, ventral aspect 48 - 50 species &quot; IR 57 &quot; (Ribera et al. 2008): 48 median lobe, right lateral aspect 49 median lobe, ventral aspect 50 right lateral lobe, right lateral aspect." figureDoi="10.3897/zookeys.1188.110081.figures30-50" httpUri="https://binary.pensoft.net/fig/963586" pageId="0" pageNumber="125">48-50</figureCitation>
). The specimen was DNA sequenced and analyzed for a project by
<bibRefCitation id="B98A88794133ACB40530715E8D05CD86" DOI="https://doi.org/10.1111/j.1096-0031.2007.00192.x" author="Ribera, I" journalOrPublisher="Cladistics" pageId="0" pageNumber="125" pagination="563 - 590" refId="B35" refString="Ribera, I, Vogler, AP, Balke, M, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24 (4): 563 - 590, DOI: https://doi.org/10.1111/j.1096-0031.2007.00192.x" title="Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae)." url="https://doi.org/10.1111/j.1096-0031.2007.00192.x" volume="24" year="2008">Ribera et al. (2008)</bibRefCitation>
where it was found to be in a group with species then
<taxonomicName id="128555C0AE003094EDCB0BC59D65F526" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes assigned" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="assigned">Megadytes assigned</taxonomicName>
to
<taxonomicName id="9E5177CE1FAE044B9B457ECFF1FE02A0" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="genus">
<emphasis id="5FEA0009961E3A4CC5656352BC6F7D30" italics="true" pageId="0" pageNumber="125">Megadytes</emphasis>
</taxonomicName>
(including species of
<taxonomicName id="C2816D6BD205E158F153189F283FCE76" authority=")" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="M. (Bifurcitus)" order="Coleoptera" pageId="0" pageNumber="125" rank="subGenus" subGenus="Bifurcitus">M. (Bifurcitus)</taxonomicName>
,
<taxonomicName id="E92B7F39D644EF44C9484EB72314B37A" authority=")" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="M. (Paramegadytes)" order="Coleoptera" pageId="0" pageNumber="125" rank="subGenus" subGenus="Paramegadytes">M. (Paramegadytes)</taxonomicName>
and
<taxonomicName id="241E2495E9A163F8F52986149FE49E63" authority=")" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="M. (Megadytes)" order="Coleoptera" pageId="0" pageNumber="125" rank="subGenus" subGenus="Megadytes">M. (Megadytes)</taxonomicName>
). The male specimen currently includes a single metathoracic leg (the other is absent). On it, there are two unequal length metatarsal claws with the posterior short, much shorter than the anterior (Fig.
<figureCitation id="85FDBB846FF8AD25C9325F3BF0060F03" captionStart="Figures 1529" captionStartId="F3" captionText="Figures 15 - 29. Neotropical Cybistrinae species, metatarsal claws and tarsomere VI of males and females 15, 16 Cybister festae 17, 18 Cybister puncticollis 19, 20 Nilssondytes diversus 21, 22 Megadytes latus 23, 24 Megadytes parvus 25 species &quot; IR 57 &quot; (Ribera et al. 2008) 26, 27 Paramegadytes glaucus 28, 29 Metaxydytes fraternus. Scale bars: 1.0 mm." figureDoi="10.3897/zookeys.1188.110081.figures15-29" httpUri="https://binary.pensoft.net/fig/963585" pageId="0" pageNumber="125">25</figureCitation>
), which places it outside the historical diagnosis of
<taxonomicName id="97353CEE54E514EF6C794BBBEB31BFD5" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="genus">
<emphasis id="0812CD449840CF9CE9524D0519BFDD6B" italics="true" pageId="0" pageNumber="125">Megadytes</emphasis>
</taxonomicName>
which includes males with equal-length metatarsal claws (although see above). However, the specimen is missing important morphological structures for further interpreting its placement within
<taxonomicName id="1A78211D3ABF18B5EE01BA19AD5D76C6" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
including the mesothoracic legs (which are important for examining the posterodorsal series of setae on the mesotarsomeres) and components of the genital capsule (which are important for examining the emargination of the medial margins of abdominal sternite IX). Because of this, the specimen cannot be placed within a known genus. Nor is it reasonable to place it in a new genus or expand the definition of an existing genus to include it given the lack of information about its features. Hopefully, additional specimens will be found to allow this species to be described and placed. The species is described here to the extent possible to allow for future identification and investigation.
</paragraph>
<caption id="A8380663C9D7A09E1007C96B2EB512D4" doi="10.3897/zookeys.1188.110081.figures9-14" httpUri="https://binary.pensoft.net/fig/963584" pageId="0" pageNumber="125" start="Figures 914" startId="F2">
<paragraph id="457311616B39858BE882518F7090DEC2" pageId="0" pageNumber="125">
<emphasis id="C33D1AAAF1B2CAD95675EB333072B1DA" bold="true" pageId="0" pageNumber="125">Figures 9-14.</emphasis>
Neotropical
<taxonomicName id="5D2CB49333B31B1F32ED77FF53580512" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
species, habitus
<emphasis id="D9F202C9F017131B80030F0CCF8B99C8" bold="true" pageId="0" pageNumber="125">9</emphasis>
<taxonomicName id="629317956073AF7151F9FD690D413040" authorityName="Griffini" authorityYear="1895" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister festae" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="festae">
<emphasis id="FDC3B14D8B20BFCEB45BFEC072E01AAB" italics="true" pageId="0" pageNumber="125">Cybister festae</emphasis>
</taxonomicName>
<emphasis id="83B1DEFB017C4F8A4F39471F929B0F20" bold="true" pageId="0" pageNumber="125">10</emphasis>
<taxonomicName id="6693D25A59E1069501FFB608D53D7366" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister puncticollis" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="puncticollis">
<emphasis id="5F22FDB64D8F7C5A758AD02E2C76AE33" italics="true" pageId="0" pageNumber="125">Cybister puncticollis</emphasis>
</taxonomicName>
<emphasis id="255C631CAE8D37D0734E46338566CB43" bold="true" pageId="0" pageNumber="125">11</emphasis>
<taxonomicName id="BD39DAE482823CE67E5210E148B43DB9" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="B2025C541D2DFD1416273A7F42DD3617" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
<emphasis id="7BEE98AB606F1D29441DA392C317ACF0" bold="true" pageId="0" pageNumber="125">12</emphasis>
<taxonomicName id="1E9274032D3B429EC8D413D6904FF23C" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" baseAuthorityName="Tremouilles" baseAuthorityYear="1984" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes parvus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="parvus">
<emphasis id="02C60A88E907C5CB97CA6AB40E825EF3" italics="true" pageId="0" pageNumber="125">Megadytes parvus</emphasis>
</taxonomicName>
<emphasis id="94D9B34F057EEE139516367ED5C5C448" bold="true" pageId="0" pageNumber="125">13</emphasis>
<taxonomicName id="CA513EEDF11A70C27EBEA021599070A5" baseAuthorityName="Fabricius" baseAuthorityYear="1801" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes latus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="EB50B9119E119C8F84B9353214692086" italics="true" pageId="0" pageNumber="125">Megadytes latus</emphasis>
</taxonomicName>
<emphasis id="4D7CE098A7A2040936781C4F2788F4F8" bold="true" pageId="0" pageNumber="125">14</emphasis>
species
<normalizedToken id="E5E12DDFEDCBDA12567DEF26A75C4428" originalValue="“IR57”">&quot;IR57&quot;</normalizedToken>
(
<bibRefCitation id="226526A5B9CAE09CFC689480081C0A82" DOI="https://doi.org/10.1111/j.1096-0031.2007.00192.x" author="Ribera, I" journalOrPublisher="Cladistics" pageId="0" pageNumber="125" pagination="563 - 590" refId="B35" refString="Ribera, I, Vogler, AP, Balke, M, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24 (4): 563 - 590, DOI: https://doi.org/10.1111/j.1096-0031.2007.00192.x" title="Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae)." url="https://doi.org/10.1111/j.1096-0031.2007.00192.x" volume="24" year="2008">Ribera et al. 2008</bibRefCitation>
). Scale bar: 10.0 mm.
</paragraph>
</caption>
<caption id="7F77A72FDC45299663A90D4306EB0577" doi="10.3897/zookeys.1188.110081.figures15-29" httpUri="https://binary.pensoft.net/fig/963585" pageId="0" pageNumber="125" start="Figures 1529" startId="F3">
<paragraph id="658E6FCFF5C1B23CEB65C8EE44CBB2E4" pageId="0" pageNumber="125">
<emphasis id="E14077874DB1F73C0DF92ED9FFC9AF4F" bold="true" pageId="0" pageNumber="125">Figures 15-29.</emphasis>
Neotropical
<taxonomicName id="BAEB63BDF3751B3A2DB078B3BB7EB4DD" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
species, metatarsal claws and tarsomere VI of males and females
<emphasis id="D2448DE73AA7B2A915C508F1C150EA1A" bold="true" pageId="0" pageNumber="125">15, 16</emphasis>
<taxonomicName id="670B328CEBA804BD51B4234DE5745982" authorityName="Griffini" authorityYear="1895" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister festae" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="festae">
<emphasis id="50C36452B1A15EB9318B96C16AFC25C3" italics="true" pageId="0" pageNumber="125">Cybister festae</emphasis>
</taxonomicName>
<emphasis id="286A930DB58B2816544655F250DA2056" bold="true" pageId="0" pageNumber="125">17, 18</emphasis>
<taxonomicName id="B6ED94BB0D4503C2313061C284BDCAC5" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister puncticollis" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="puncticollis">
<emphasis id="27A13A565A11247DEEDB1E95955612DC" italics="true" pageId="0" pageNumber="125">Cybister puncticollis</emphasis>
</taxonomicName>
<emphasis id="EEC697ABA4D067F70C78BE7C6F8BF381" bold="true" pageId="0" pageNumber="125">19, 20</emphasis>
<taxonomicName id="3B47E017466156C9B8280AA6F54E3454" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="8ACBA90F422C1467EED0554733BE9281" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
<emphasis id="4FC61983DAA65B0E86BEF32609FED543" bold="true" pageId="0" pageNumber="125">21, 22</emphasis>
<taxonomicName id="434FA2125D0A3EA90831047C3E638C78" baseAuthorityName="Fabricius" baseAuthorityYear="1801" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes latus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="399928206B3A7B3E6B793D8D59F840BF" italics="true" pageId="0" pageNumber="125">Megadytes latus</emphasis>
</taxonomicName>
<emphasis id="4D0954D816298F0E2824DA1F7F385AF0" bold="true" pageId="0" pageNumber="125">23, 24</emphasis>
<taxonomicName id="887752F25BAAF4E63570EC120C568FE5" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" baseAuthorityName="Tremouilles" baseAuthorityYear="1984" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes parvus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="parvus">
<emphasis id="E171A14AC741B9332D9DDE2D271B9E23" italics="true" pageId="0" pageNumber="125">Megadytes parvus</emphasis>
</taxonomicName>
<emphasis id="E26B18B2B7E39836F6D910FAA8878FAC" bold="true" pageId="0" pageNumber="125">25</emphasis>
species
<normalizedToken id="ACEF4F0ED247EBCDF8BC78750B068136" originalValue="“IR57”">&quot;IR57&quot;</normalizedToken>
(
<bibRefCitation id="69FE4FD1C51506EC09B740A6AD934ACC" DOI="https://doi.org/10.1111/j.1096-0031.2007.00192.x" author="Ribera, I" journalOrPublisher="Cladistics" pageId="0" pageNumber="125" pagination="563 - 590" refId="B35" refString="Ribera, I, Vogler, AP, Balke, M, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24 (4): 563 - 590, DOI: https://doi.org/10.1111/j.1096-0031.2007.00192.x" title="Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae)." url="https://doi.org/10.1111/j.1096-0031.2007.00192.x" volume="24" year="2008">Ribera et al. 2008</bibRefCitation>
)
<emphasis id="CA50D767DA28252D9F1F374BFBDD13BE" bold="true" pageId="0" pageNumber="125">26, 27</emphasis>
<taxonomicName id="8184CC3CADB5EF6831BE64FA2BE828CA" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Paramegadytes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paramegadytes glaucus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="glaucus">
<emphasis id="13651B03071FD94FCC8D6AF46313D089" italics="true" pageId="0" pageNumber="125">Paramegadytes glaucus</emphasis>
</taxonomicName>
<emphasis id="025A6EFDAA084FC6850BEC28FFC4AE5A" bold="true" pageId="0" pageNumber="125">28, 29</emphasis>
<taxonomicName id="C4929A8799F118366F8947557B6C8859" family="Dytiscidae" genus="Metaxydytes" kingdom="Animalia" lsidName="Metaxydytes fraternus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="fraternus">
<emphasis id="A613862CB9B13E28119C1058DFC68E04" italics="true" pageId="0" pageNumber="125">Metaxydytes fraternus</emphasis>
</taxonomicName>
. Scale bars: 1.0 mm.
</paragraph>
</caption>
<caption id="399B0D550D1DCD0DCFB5CFF8EB6217C3" doi="10.3897/zookeys.1188.110081.figures30-50" httpUri="https://binary.pensoft.net/fig/963586" pageId="0" pageNumber="125" start="Figures 3050" startId="F4">
<paragraph id="FFBC6B36AA12F22E8D9CF30B421F03F4" pageId="0" pageNumber="125">
<emphasis id="DAC0B2B72C02B6635891EF3A2C40BFFE" bold="true" pageId="0" pageNumber="125">Figures 30-50.</emphasis>
Neotropical
<taxonomicName id="9D648917A87AE4F49815A1C2A7A64A51" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
species, male genitalia
<emphasis id="30ED645306136E370A03B850265593E3" bold="true" pageId="0" pageNumber="125">30-32</emphasis>
<taxonomicName id="08EE75EF83C692ACD23B8DEA2AB74446" authorityName="Griffini" authorityYear="1895" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister festae" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="festae">
<emphasis id="529AA43D67F2205AFB2EAE0D80149EDE" italics="true" pageId="0" pageNumber="125">Cybister festae</emphasis>
</taxonomicName>
:
<emphasis id="FFAB822F8FAF8B4B08A386CDBD7BBA00" bold="true" pageId="0" pageNumber="125">30</emphasis>
median lobe, right lateral aspect
<emphasis id="D67D5AE1175B973051497033573FEC55" bold="true" pageId="0" pageNumber="125">31</emphasis>
median lobe, ventral aspect
<emphasis id="31D10A9EDF56922545C68BF886284A85" bold="true" pageId="0" pageNumber="125">32</emphasis>
right lateral lobe, right lateral aspect
<emphasis id="A9925A3A882AF74B05A36471EB7EE242" bold="true" pageId="0" pageNumber="125">33-35</emphasis>
<taxonomicName id="69DCD8B42D6C18B5AFE1C1CE12CFB752" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister puncticollis" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="puncticollis">
<emphasis id="0E24CA423D7F35C9CCC5DB4412531CE6" italics="true" pageId="0" pageNumber="125">Cybister puncticollis</emphasis>
</taxonomicName>
:
<emphasis id="910D6AEEA91EC79D355BBDB00E2F1ED2" bold="true" pageId="0" pageNumber="125">33</emphasis>
median lobe, right lateral aspect
<emphasis id="F345C5E14E2DBD73013841B3F1830751" bold="true" pageId="0" pageNumber="125">34</emphasis>
median lobe, ventral aspect
<emphasis id="7031C8BB955DAB1BEDD5EA97325EFC33" bold="true" pageId="0" pageNumber="125">35</emphasis>
right lateral lobe, right lateral aspect
<emphasis id="A5DBCDFC31476E495ADFCBA2783A3939" bold="true" pageId="0" pageNumber="125">36-38</emphasis>
<taxonomicName id="0365FF6B88A6D9166338B91879F885AB" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="E00AFB0DB04C23EE09FFC7F56211ED97" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
:
<emphasis id="FE17C66D90629869BD0417E26113455F" bold="true" pageId="0" pageNumber="125">36</emphasis>
median lobe, right lateral aspect
<emphasis id="485FAEC10C83972249A084F54A3A4A0F" bold="true" pageId="0" pageNumber="125">37</emphasis>
median lobe, ventral aspect
<emphasis id="B030327ABB3CF0C557CD4F539253C28E" bold="true" pageId="0" pageNumber="125">38</emphasis>
right lateral lobe, right lateral aspect
<emphasis id="7A3931529F1A67C2F26A0C17483F50BF" bold="true" pageId="0" pageNumber="125">39-43</emphasis>
<taxonomicName id="F3CA848D14E7A262022B64739DBB4E85" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" baseAuthorityName="Tremouilles" baseAuthorityYear="1984" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes parvus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="parvus">
<emphasis id="89512F72D0E4E9715552F062C222D574" italics="true" pageId="0" pageNumber="125">Megadytes parvus</emphasis>
</taxonomicName>
:
<emphasis id="B3B6E5A8DF12BB41F14D7FB922A9D20C" bold="true" pageId="0" pageNumber="125">39</emphasis>
median lobe, right lateral aspect
<emphasis id="49B76897A43EC94FF1AA0C6CB441B07B" bold="true" pageId="0" pageNumber="125">40</emphasis>
median lobe, ventral aspect
<emphasis id="64F5B6B8B7C639AA5BA05C37BD76C54B" bold="true" pageId="0" pageNumber="125">41</emphasis>
right lateral lobe, right lateral aspect
<emphasis id="F871D12F36349F460970119643EBB436" bold="true" pageId="0" pageNumber="125">42</emphasis>
apex of median lobe, right lateral aspect
<emphasis id="C4E27164DA7CD81D62B54AC1CA473314" bold="true" pageId="0" pageNumber="125">43</emphasis>
apex of median lobe, ventral aspect
<emphasis id="D8B11E9B91111F790A2EFFE699D93ECF" bold="true" pageId="0" pageNumber="125">44-47</emphasis>
<taxonomicName id="D973A31149CFFE43DF9408EA17D2EEEB" baseAuthorityName="Fabricius" baseAuthorityYear="1801" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes latus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="0035838C063B82B9771A9C43990C8CC9" italics="true" pageId="0" pageNumber="125">Megadytes latus</emphasis>
</taxonomicName>
:
<emphasis id="03B871E6582A395F3DF120B556D3FF25" bold="true" pageId="0" pageNumber="125">44</emphasis>
median lobe, right lateral aspect
<emphasis id="4FE2D0FC9C45849BD5D704AD9E7CE3B2" bold="true" pageId="0" pageNumber="125">45</emphasis>
median lobe, ventral aspect
<emphasis id="EFBFFF38B5338A21E3E45E80BD6D0867" bold="true" pageId="0" pageNumber="125">46</emphasis>
right lateral lobe, right lateral aspect
<emphasis id="3F65EB6385B734C29481D2185684027C" bold="true" pageId="0" pageNumber="125">47</emphasis>
apex of median lobe, ventral aspect
<emphasis id="6AF1DF9BA6768336A3590DC335A1DE92" bold="true" pageId="0" pageNumber="125">48-50</emphasis>
species
<normalizedToken id="F4624E8F1FE6F5948C1FD8A4EDF6FBC1" originalValue="“IR57”">&quot;IR57&quot;</normalizedToken>
(
<bibRefCitation id="5193B4990D06C81F6D461A3024FB32BE" DOI="https://doi.org/10.1111/j.1096-0031.2007.00192.x" author="Ribera, I" journalOrPublisher="Cladistics" pageId="0" pageNumber="125" pagination="563 - 590" refId="B35" refString="Ribera, I, Vogler, AP, Balke, M, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24 (4): 563 - 590, DOI: https://doi.org/10.1111/j.1096-0031.2007.00192.x" title="Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae)." url="https://doi.org/10.1111/j.1096-0031.2007.00192.x" volume="24" year="2008">Ribera et al. 2008</bibRefCitation>
):
<emphasis id="12A8DC412E47FF68F0E82CD25A72EA2F" bold="true" pageId="0" pageNumber="125">48</emphasis>
median lobe, right lateral aspect
<emphasis id="DEAC070E4083773AF1D11FF49898811C" bold="true" pageId="0" pageNumber="125">49</emphasis>
median lobe, ventral aspect
<emphasis id="5BFD4141822DE5D24C5720E32352B71F" bold="true" pageId="0" pageNumber="125">50</emphasis>
right lateral lobe, right lateral aspect.
</paragraph>
</caption>
<caption id="F14CAEE4B84D174FB4999B7F2FED43F3" doi="10.3897/zookeys.1188.110081.figures51-57" httpUri="https://binary.pensoft.net/fig/963587" pageId="0" pageNumber="125" start="Figures 5157" startId="F5">
<paragraph id="2DBD65E0725F09076A80F9FBF457B535" pageId="0" pageNumber="125">
<emphasis id="551BFB370F5D9D73CA6D2B8BB6A3F5BC" bold="true" pageId="0" pageNumber="125">Figures 51-57.</emphasis>
Neotropical
<taxonomicName id="C1E31C4AED9FDF684C27F281D4F317FB" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
species, male sternite IX, ventral aspect
<emphasis id="94D0085C9DE8ADAD0EC2B7A732E83501" bold="true" pageId="0" pageNumber="125">51</emphasis>
<taxonomicName id="2FD7161B266D1C7FB99A9CBDDFF839C3" authorityName="Griffini" authorityYear="1895" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister festae" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="festae">
<emphasis id="08BEFF27C0A220B289919CDAB4458002" italics="true" pageId="0" pageNumber="125">Cybister festae</emphasis>
</taxonomicName>
<emphasis id="D72A1C37E8B5C8CD9984A5E10612963D" bold="true" pageId="0" pageNumber="125">52</emphasis>
<taxonomicName id="FF9AFB708E68F7EBE326E1F0C1B86118" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister puncticollis" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="puncticollis">
<emphasis id="8D7D982BE099CA909D7C4723546D91CA" italics="true" pageId="0" pageNumber="125">Cybister puncticollis</emphasis>
</taxonomicName>
<emphasis id="0C288918729F87B9B9F317655826D263" bold="true" pageId="0" pageNumber="125">53</emphasis>
<taxonomicName id="FB53D5450E0B96204F17A69520FFBE48" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="28319F98F951CB1AA27EB57486B24B85" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
<emphasis id="80D0843D7847F920678EE92BDBB75F30" bold="true" pageId="0" pageNumber="125">54</emphasis>
<taxonomicName id="4DE71E7CD74B771C413D1DAE614A4CBB" baseAuthorityName="Fabricius" baseAuthorityYear="1801" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes latus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="D6C552EF3E949C6F536609F53E3A0331" italics="true" pageId="0" pageNumber="125">Megadytes latus</emphasis>
</taxonomicName>
<emphasis id="30AAEB4D8F458AD7B0A36FF9B7A08C52" bold="true" pageId="0" pageNumber="125">55</emphasis>
<taxonomicName id="A75AC7C316E1B53FEBBD93C7572E83F6" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" baseAuthorityName="Tremouilles" baseAuthorityYear="1984" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes parvus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="parvus">
<emphasis id="47F802A089BD983088790CC50492E4BF" italics="true" pageId="0" pageNumber="125">Megadytes parvus</emphasis>
</taxonomicName>
<emphasis id="B1D87F680C0D298B240834A1CF398FBB" bold="true" pageId="0" pageNumber="125">56</emphasis>
<taxonomicName id="AFA31576DC99C4BE2D7A1D7852710D6A" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Paramegadytes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paramegadytes glaucus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="glaucus">
<emphasis id="D93B2415D8AEC4B8B59050DA35E70441" italics="true" pageId="0" pageNumber="125">Paramegadytes glaucus</emphasis>
</taxonomicName>
<emphasis id="F228D252940B4586F7765BF125B853E3" bold="true" pageId="0" pageNumber="125">57</emphasis>
<taxonomicName id="E35E20A2CD4BC15DD04F5FD5B525C4A8" family="Dytiscidae" genus="Metaxydytes" kingdom="Animalia" lsidName="Metaxydytes fraternus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="fraternus">
<emphasis id="B5DFF4B21EA21961E866A80DF639A995" italics="true" pageId="0" pageNumber="125">Metaxydytes fraternus</emphasis>
</taxonomicName>
. Scale bars: 1.0 mm.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="D95FD0BE1E86DAEEE64D0465E0136A68" pageId="0" pageNumber="125" type="collection locality">
<paragraph id="D508293094AB027D3FF284C4C2074657" pageId="0" pageNumber="125">Collection locality.</paragraph>
<paragraph id="2915CEC7DFAEC54DA547AD91017608ED" pageId="0" pageNumber="125">
Peru, Atalapa, Rio Carbon at Rio Madre de Dios, in river, Apr 1999 (
<bibRefCitation id="DB3670471541D0C381D2C2CC176E85D5" DOI="https://doi.org/10.1111/j.1096-0031.2007.00192.x" author="Ribera, I" journalOrPublisher="Cladistics" pageId="0" pageNumber="125" pagination="563 - 590" refId="B35" refString="Ribera, I, Vogler, AP, Balke, M, 2008. Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae). Cladistics 24 (4): 563 - 590, DOI: https://doi.org/10.1111/j.1096-0031.2007.00192.x" title="Phylogeny and diversification of diving beetles (Coleoptera: Dytiscidae)." url="https://doi.org/10.1111/j.1096-0031.2007.00192.x" volume="24" year="2008">Ribera et al. 2008</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="DE0C983011130A9544ED16C37E001B0E" pageId="0" pageNumber="125" type="description">
<paragraph id="42EE761BCF453F13C6BE5931D4E81CE3" pageId="0" pageNumber="125">Description.</paragraph>
<paragraph id="79E5ADD6A812B8DAE018C4F43145C617" pageId="0" pageNumber="125">
<emphasis id="DBDC85251D6EB75DEF6CF8B544514E53" bold="true" pageId="0" pageNumber="125">
<emphasis id="794C4A2973C83CE9672D9C52D151401B" italics="true" pageId="0" pageNumber="125">Measurements</emphasis>
.
</emphasis>
TL = 17.5 mm, GW = 10.4 mm, PW = 12.8 mm, HW = 4.8 mm, EW = 2.4 mm, TL/GW = 1.7, HW/EW = 2.0, WC/WV = 4.2. Body shape (Fig.
<figureCitation id="6DDF35E79F1F5814EC45B1F9FF2546DF" captionStart="Figures 914" captionStartId="F2" captionText="Figures 9 - 14. Neotropical Cybistrinae species, habitus 9 Cybister festae 10 Cybister puncticollis 11 Nilssondytes diversus 12 Megadytes parvus 13 Megadytes latus 14 species &quot; IR 57 &quot; (Ribera et al. 2008). Scale bar: 10.0 mm." figureDoi="10.3897/zookeys.1188.110081.figures9-14" httpUri="https://binary.pensoft.net/fig/963584" pageId="0" pageNumber="125">14</figureCitation>
) broad, expanded posteriorly, widest at ~ 3/5 of length; lateral margins evenly, continuously curved between pronotum and elytron. Depressed and somewhat flattened in lateral aspect.
</paragraph>
<paragraph id="C7D55F682620DFB9FD8697356E3674E4" pageId="0" pageNumber="125">
<emphasis id="681D8D6B7CFC93F69725475B9FA97017" bold="true" pageId="0" pageNumber="125">
<emphasis id="1E7CD5A90229B9CAC7C2662727150C19" italics="true" pageId="0" pageNumber="125">Coloration</emphasis>
.
</emphasis>
All dorsal surfaces dark reddish brown, without yellow margins on pronotum or elytron. Ventral surfaces entirely dark reddish brown, somewhat more reddish on ventral surfaces of prothorax and pro- and mesothoracic legs.
</paragraph>
<paragraph id="AB2B021A37419247B678F668541D96FE" pageId="0" pageNumber="125">
<emphasis id="3DC2A5C008AD817A2BF966087DB3859B" bold="true" pageId="0" pageNumber="125">
<emphasis id="7F65A3E9F6DA547E4AC2C5E7DCEB3B60" italics="true" pageId="0" pageNumber="125">Sculpture and structure</emphasis>
.
</emphasis>
Head broad; anterior clypeal margin broadly, shallowly and evenly concave; eyes large (HW/EW = 2.0). Dorsal surface shiny and evenly covered with fine micropunctures on head and pronotum, very few sparse micropunctures on elytron. Pronotum with lateral margins evenly and broadly curved. Elytral lateral margin evenly and slightly curved for most of length, apically broadly curved. Prosternal process apically broadly, shallowly concave, ventral surface flat throughout, apex robust, acutely pointed. Metaventral wing narrow, ~ 1/4 width of lateral portion of metacoxa (WC/WV = 4.2); surface smooth, with extremely fine punctation. Lateral portion of metacoxa large, broad, surface smooth, with dispersed, very fine micropunctures; metacoxal lines short, extending only ~ 1/3 distance across metacoxa. Abdominal ventrites smooth, unsculptured.
</paragraph>
<caption id="0866E4D49A45E66C8786A570BEE69CDB" doi="10.3897/zookeys.1188.110081.figures58-61" httpUri="https://binary.pensoft.net/fig/963588" pageId="0" pageNumber="125" start="Figures 5861" startId="F6">
<paragraph id="3478ADEDBC10D951C4D19938F18E6110" pageId="0" pageNumber="125">
<emphasis id="24285D6BD46E0339887C90E2CB7385A8" bold="true" pageId="0" pageNumber="125">Figures 58-61.</emphasis>
Neotropical
<taxonomicName id="C6A5BEB5F7311DD21896EBA3B27C5A9A" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
species, female genitalia including left gonocoxosternite, ventral aspect, except Fig.
<figureCitation id="F830336809E9AE6A94C2FFE498FFBAC6" captionStart="Figures 5861" captionStartId="F6" captionText="Figures 58 - 61. Neotropical Cybistrinae species, female genitalia including left gonocoxosternite, ventral aspect, except Fig. 60 without internal genitalia 58 Cybister festae 59 Cybister puncticollis 60 Megadytes latus 61 Nilssondytes diversus. Scale bars: 1.0 mm." figureDoi="10.3897/zookeys.1188.110081.figures58-61" httpUri="https://binary.pensoft.net/fig/963588" pageId="0" pageNumber="125">60</figureCitation>
without internal genitalia
<emphasis id="A4235116F3C65009CFDA8C6E646A64A6" bold="true" pageId="0" pageNumber="125">58</emphasis>
<taxonomicName id="2FCA13F8A4738A4412EE1520674FFFC4" authorityName="Griffini" authorityYear="1895" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister festae" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="festae">
<emphasis id="E99764470B7A97693EEC3CBA80E2EEAA" italics="true" pageId="0" pageNumber="125">Cybister festae</emphasis>
</taxonomicName>
<emphasis id="C503F591CB8C53FE785FDBEF7AF89837" bold="true" pageId="0" pageNumber="125">59</emphasis>
<taxonomicName id="9E9AD40DC632813251048424F859A33F" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister puncticollis" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="puncticollis">
<emphasis id="43DD3A8C4F32B7315826D110241A3EE6" italics="true" pageId="0" pageNumber="125">Cybister puncticollis</emphasis>
</taxonomicName>
<emphasis id="703CFB32A1A4229B88707F5F12804FE1" bold="true" pageId="0" pageNumber="125">60</emphasis>
<taxonomicName id="FD3E9FDC0CE43DBEA748092D18836DC4" baseAuthorityName="Fabricius" baseAuthorityYear="1801" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes latus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="C4709E346C2D51F6164BFB0732E68A08" italics="true" pageId="0" pageNumber="125">Megadytes latus</emphasis>
</taxonomicName>
<emphasis id="F3C34C94879807D861070EFBBBC127E5" bold="true" pageId="0" pageNumber="125">61</emphasis>
<taxonomicName id="9CDD268F16EF61D32A97350426DD87CA" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="AC7697E07613FB4F24EA6C377FB21879" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
. Scale bars: 1.0 mm.
</paragraph>
</caption>
<caption id="8DC2FB5DD978EE209AB3D09AF197E622" doi="10.3897/zookeys.1188.110081.figures62-66" httpUri="https://binary.pensoft.net/fig/963589" pageId="0" pageNumber="125" start="Figures 6266" startId="F7">
<paragraph id="CB7DAA230BE769426772D93CBA858F2D" pageId="0" pageNumber="125">
<emphasis id="2E9D4C595A1A901F7DB8F12DC75B8318" bold="true" pageId="0" pageNumber="125">Figures 62-66.</emphasis>
Neotropical
<taxonomicName id="B6032748685EA4588D3720D167D745EB" authorityName="Sharp" authorityYear="1880" lsidName="" pageId="0" pageNumber="125" rank="subFamily" subFamily="Cybistrinae">Cybistrinae</taxonomicName>
species, female genitalia including left gonocoxosternite, ventral aspect
<emphasis id="23A54D649E0DA13BD3633D75FE020CBF" bold="true" pageId="0" pageNumber="125">62</emphasis>
<taxonomicName id="4CB423610D032EA0FF4E49E73D760579" family="Dytiscidae" genus="Metaxydytes" kingdom="Animalia" lsidName="Metaxydytes fraternus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="fraternus">
<emphasis id="365EEF2F30DC40020EF8E2361D4F6074" italics="true" pageId="0" pageNumber="125">Metaxydytes fraternus</emphasis>
</taxonomicName>
<emphasis id="1D7F4365A6C6DB04BD09AEBEEB9C335A" bold="true" pageId="0" pageNumber="125">63</emphasis>
<taxonomicName id="3328077E8AE711979783F14C3B6C5094" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Paramegadytes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paramegadytes glaucus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="glaucus">
<emphasis id="D4EFD37423D1B2B1FCE3E5E6428BC97B" italics="true" pageId="0" pageNumber="125">Paramegadytes glaucus</emphasis>
</taxonomicName>
<emphasis id="F9B467BB587AD6162A354BC1148FB212" bold="true" pageId="0" pageNumber="125">64</emphasis>
<taxonomicName id="5627BE7D0404E21396D768A0753F4A30" baseAuthorityName="Guerin-Meneville" baseAuthorityYear="1829" class="Insecta" family="Dytiscidae" genus="Bifurcitus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Bifurcitus lherminieri" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="lherminieri">
<emphasis id="CA9989B6276B7C3E58B2DA068D7804FD" italics="true" pageId="0" pageNumber="125">Bifurcitus lherminieri</emphasis>
</taxonomicName>
<emphasis id="F1E73288EBF402C9A3BF94F6635DEFCF" bold="true" pageId="0" pageNumber="125">65</emphasis>
<taxonomicName id="39F5981D8D58EE73F1DE29EE4AA3F757" baseAuthorityName="Aube" baseAuthorityYear="1838" class="Insecta" family="Dytiscidae" genus="Trifurcitus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Trifurcitus robustus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="robustus">
<emphasis id="CD2E50776F57124E0D5DA4DD38853BF2" italics="true" pageId="0" pageNumber="125">Trifurcitus robustus</emphasis>
</taxonomicName>
<emphasis id="D9735D6A95D9BD54CEA8706129F7E719" bold="true" pageId="0" pageNumber="125">66</emphasis>
<taxonomicName id="4EDF29F2CA9AB67B27D2A16F4780F434" baseAuthorityName="Say" baseAuthorityYear="1825" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister fimbriolatus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="fimbriolatus">
<emphasis id="D2CC1E91BF5C7FA913719E0E4EA3B1BF" italics="true" pageId="0" pageNumber="125">Cybister fimbriolatus</emphasis>
</taxonomicName>
. Scale bars: 1.0 mm.
</paragraph>
</caption>
<caption id="BE4BABB715120ECFF410E3765A9E5E0D" doi="10.3897/zookeys.1188.110081.figures67-71" httpUri="https://binary.pensoft.net/fig/963590" pageId="0" pageNumber="125" start="Figures 6771" startId="F8">
<paragraph id="934DBC69017787949EAF56E7BDF3868A" pageId="0" pageNumber="125">
<emphasis id="99CD6CEA7D9BEFDD4C4F43690EB8518B" bold="true" pageId="0" pageNumber="125">Figures 67-71.</emphasis>
Third instar larva, anterior clypeal margin
<emphasis id="C8E4F5B2F3F66EC126A45B97776BB328" bold="true" pageId="0" pageNumber="125">67</emphasis>
<taxonomicName id="0986892385F3053BFA5D3CC9FC5BB1C5" authorityName="Tremouilles &amp; Bachmann" authorityYear="1980" class="Insecta" family="Dytiscidae" genus="Bifurcitus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Bifurcitus magnus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="magnus">
<emphasis id="239DF68D72FFE73E2137A8CBCE38E0E0" italics="true" pageId="0" pageNumber="125">Bifurcitus magnus</emphasis>
</taxonomicName>
<emphasis id="3F7D43C5E4BDC68C0E3AE38CF96ADC0B" bold="true" pageId="0" pageNumber="125">68</emphasis>
<taxonomicName id="98E9C7DE9ADA294712B583D522DB1DEF" baseAuthorityName="Fabricius" baseAuthorityYear="1801" class="Insecta" family="Dytiscidae" genus="Megadytes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megadytes latus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="7194BFC9868ED874F0FD5D9E49C968DF" italics="true" pageId="0" pageNumber="125">Megadytes latus</emphasis>
</taxonomicName>
<emphasis id="30A26A0CC07D62F1177403AFC1861432" bold="true" pageId="0" pageNumber="125">69</emphasis>
<taxonomicName id="D1A25F4349A776E043070B66E85CABD7" family="Dytiscidae" genus="Metaxydytes" kingdom="Animalia" lsidName="Metaxydytes carcharias" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="carcharias">
<emphasis id="22C49744B4E94056877EEA6F4BC3C37C" italics="true" pageId="0" pageNumber="125">Metaxydytes carcharias</emphasis>
</taxonomicName>
<emphasis id="D882201858EDC15F2AB82D3EA4A97A81" bold="true" pageId="0" pageNumber="125">70</emphasis>
<taxonomicName id="0405F4D679C7730607A73F40A3509174" baseAuthorityName="Brulle" baseAuthorityYear="1837" class="Insecta" family="Dytiscidae" genus="Paramegadytes" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Paramegadytes glaucus" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="glaucus">
<emphasis id="AF8C56D0E5983A4AAD16BD69315A3647" italics="true" pageId="0" pageNumber="125">Paramegadytes glaucus</emphasis>
</taxonomicName>
<emphasis id="C7602B27C7D41EB2E18BEF87CCD7EEA1" bold="true" pageId="0" pageNumber="125">71</emphasis>
<taxonomicName id="4EC1A188FD1867AD7C7ADBD5983C9B52" baseAuthorityName="Aube" baseAuthorityYear="1838" class="Insecta" family="Dytiscidae" genus="Trifurcitus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Trifurcitus fallax" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="fallax">
<emphasis id="24D7E788B6B2E49F0CC7A8E976D36106" italics="true" pageId="0" pageNumber="125">Trifurcitus fallax</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<caption id="6D2BCDD2EA85F804FF8B5C164C46D50B" doi="10.3897/zookeys.1188.110081.figure72" httpUri="https://binary.pensoft.net/fig/963591" pageId="0" pageNumber="125" start="Figure 72" startId="F9">
<paragraph id="5907215520E695F0CCDE5445B87ADF81" pageId="0" pageNumber="125">
<emphasis id="CA331AE633076426DE8FFB9A3F510E17" bold="true" pageId="0" pageNumber="125">Figure 72.</emphasis>
<taxonomicName id="9D3C5E7C6A372C64277DCC50AFE7D256" authorityName="Griffini" authorityYear="1895" class="Insecta" family="Dytiscidae" genus="Cybister" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cybister (Neocybister) festae" order="Coleoptera" pageId="0" pageNumber="125" phylum="Arthropoda" rank="species" species="festae" subGenus="Neocybister">Cybister (Neocybister) festae</taxonomicName>
, lectotype male (left) and paralectotype female (right). Photograph courtesy of F. Giachino, MRSN.
</paragraph>
</caption>
<caption id="66203BC9BFFF4584644958D1919BD166" doi="10.3897/zookeys.1188.110081.figure73" pageId="0" pageNumber="125" start="Figure 73" startId="F10">
<paragraph id="FA98FEC0F0B8F9FFBE4EE6566C113740" pageId="0" pageNumber="125">
<emphasis id="362E2F988C472AC842E5132820D7B39A" bold="true" pageId="0" pageNumber="125">Figure 73.</emphasis>
<taxonomicName id="D60AEF8BB561278E83EFAF9DDD4CC4C4" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="E132FA2EE9317CD272071CEEF79CBB82" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
, holotype specimen. Scale bar: 5.0 mm.
</paragraph>
</caption>
<caption id="2E839C17F3073794072778D1EB100C61" doi="10.3897/zookeys.1188.110081.figure74" httpUri="https://binary.pensoft.net/fig/963592" pageId="0" pageNumber="125" start="Figure 74" startId="F11">
<paragraph id="31E043C33DB89CFF0993C301D596E0AA" pageId="0" pageNumber="125">
<emphasis id="D84C4189C4AF9C4347519C9B279282B7" bold="true" pageId="0" pageNumber="125">Figure 74.</emphasis>
Distribution of
<taxonomicName id="7D105E4FA58759A91688BC4AA1314C96" authorityName="Miller &amp; Michat &amp; Ferreira Jr" authorityYear="2024" family="Dytiscidae" genus="Nilssondytes" kingdom="Animalia" lsidName="Nilssondytes diversus" order="Coleoptera" pageId="0" pageNumber="125" rank="species" species="diversus">
<emphasis id="2351176A16434DD499FF6F67F03049C9" italics="true" pageId="0" pageNumber="125">Nilssondytes diversus</emphasis>
</taxonomicName>
in northern South America.
</paragraph>
</caption>
<paragraph id="FBF4BD69921625910EF32B911C50162D" pageId="0" pageNumber="125">
<emphasis id="62109AA18BE67A8B14DE1ECB0896F40F" bold="true" pageId="0" pageNumber="125">
<emphasis id="C964D98050AA1A67A7915AEF48579037" italics="true" pageId="0" pageNumber="125">Male genitalia</emphasis>
.
</emphasis>
Male median lobe in lateral aspect slender, broader submedially and gradually narrowed apically to slightly curved apex, apex bluntly rounded (Fig.
<figureCitation id="477D78499A16DDC7EB795C0AE082E697" captionStart="Figures 3050" captionStartId="F4" captionText="Figures 30 - 50. Neotropical Cybistrinae species, male genitalia 30 - 32 Cybister festae: 30 median lobe, right lateral aspect 31 median lobe, ventral aspect 32 right lateral lobe, right lateral aspect 33 - 35 Cybister puncticollis: 33 median lobe, right lateral aspect 34 median lobe, ventral aspect 35 right lateral lobe, right lateral aspect 36 - 38 Nilssondytes diversus: 36 median lobe, right lateral aspect 37 median lobe, ventral aspect 38 right lateral lobe, right lateral aspect 39 - 43 Megadytes parvus: 39 median lobe, right lateral aspect 40 median lobe, ventral aspect 41 right lateral lobe, right lateral aspect 42 apex of median lobe, right lateral aspect 43 apex of median lobe, ventral aspect 44 - 47 Megadytes latus: 44 median lobe, right lateral aspect 45 median lobe, ventral aspect 46 right lateral lobe, right lateral aspect 47 apex of median lobe, ventral aspect 48 - 50 species &quot; IR 57 &quot; (Ribera et al. 2008): 48 median lobe, right lateral aspect 49 median lobe, ventral aspect 50 right lateral lobe, right lateral aspect." figureDoi="10.3897/zookeys.1188.110081.figures30-50" httpUri="https://binary.pensoft.net/fig/963586" pageId="0" pageNumber="125">48</figureCitation>
). In dorsal aspect slender, evenly and gradually narrowed to narrowly rounded apex; dorsal sclerite very slender and elongate (Fig.
<figureCitation id="529A93DEB2510385E95A1DD1A52CAAB2" captionStart="Figures 3050" captionStartId="F4" captionText="Figures 30 - 50. Neotropical Cybistrinae species, male genitalia 30 - 32 Cybister festae: 30 median lobe, right lateral aspect 31 median lobe, ventral aspect 32 right lateral lobe, right lateral aspect 33 - 35 Cybister puncticollis: 33 median lobe, right lateral aspect 34 median lobe, ventral aspect 35 right lateral lobe, right lateral aspect 36 - 38 Nilssondytes diversus: 36 median lobe, right lateral aspect 37 median lobe, ventral aspect 38 right lateral lobe, right lateral aspect 39 - 43 Megadytes parvus: 39 median lobe, right lateral aspect 40 median lobe, ventral aspect 41 right lateral lobe, right lateral aspect 42 apex of median lobe, right lateral aspect 43 apex of median lobe, ventral aspect 44 - 47 Megadytes latus: 44 median lobe, right lateral aspect 45 median lobe, ventral aspect 46 right lateral lobe, right lateral aspect 47 apex of median lobe, ventral aspect 48 - 50 species &quot; IR 57 &quot; (Ribera et al. 2008): 48 median lobe, right lateral aspect 49 median lobe, ventral aspect 50 right lateral lobe, right lateral aspect." figureDoi="10.3897/zookeys.1188.110081.figures30-50" httpUri="https://binary.pensoft.net/fig/963586" pageId="0" pageNumber="125">49</figureCitation>
). Lateral lobe extremely slender throughout, broadly curved with long series of long setae along dorsal margin (Fig.
<figureCitation id="660626D36C23CB1CC4C4532056BF440F" captionStart="Figures 3050" captionStartId="F4" captionText="Figures 30 - 50. Neotropical Cybistrinae species, male genitalia 30 - 32 Cybister festae: 30 median lobe, right lateral aspect 31 median lobe, ventral aspect 32 right lateral lobe, right lateral aspect 33 - 35 Cybister puncticollis: 33 median lobe, right lateral aspect 34 median lobe, ventral aspect 35 right lateral lobe, right lateral aspect 36 - 38 Nilssondytes diversus: 36 median lobe, right lateral aspect 37 median lobe, ventral aspect 38 right lateral lobe, right lateral aspect 39 - 43 Megadytes parvus: 39 median lobe, right lateral aspect 40 median lobe, ventral aspect 41 right lateral lobe, right lateral aspect 42 apex of median lobe, right lateral aspect 43 apex of median lobe, ventral aspect 44 - 47 Megadytes latus: 44 median lobe, right lateral aspect 45 median lobe, ventral aspect 46 right lateral lobe, right lateral aspect 47 apex of median lobe, ventral aspect 48 - 50 species &quot; IR 57 &quot; (Ribera et al. 2008): 48 median lobe, right lateral aspect 49 median lobe, ventral aspect 50 right lateral lobe, right lateral aspect." figureDoi="10.3897/zookeys.1188.110081.figures30-50" httpUri="https://binary.pensoft.net/fig/963586" pageId="0" pageNumber="125">50</figureCitation>
).
</paragraph>
<paragraph id="D08F204AE6910290CE8CA4A1F6A9A0A1" pageId="0" pageNumber="125">
<emphasis id="B573A2BD12FEE6847D9C6E6769A53C68" bold="true" pageId="0" pageNumber="125">
<emphasis id="4E2C63FF05201E6C82D3F16252229CD7" italics="true" pageId="0" pageNumber="125">Female genitalia</emphasis>
.
</emphasis>
Females are not known.
</paragraph>
<paragraph id="09EC391BEC6031F95EC2D2FB296905CC" pageId="0" pageNumber="125">
<emphasis id="3DCAD1E4366A90391A74124202855D19" bold="true" pageId="0" pageNumber="125">
<emphasis id="B6DE8953C3112406069D4F700E1308F8" italics="true" pageId="0" pageNumber="125">Sexual dimorphism</emphasis>
.
</emphasis>
Only a single male was examined. However, this male has a characteristic broad protarsal palette with ventral adhesive setae. Males also have mesotarsomeres with clumps of posteroventral setae. Other typical sexually dimorphic features cannot be compared.
</paragraph>
<paragraph id="A5CFF90E41CE7CBBAEDB5FB9EA7414E9" pageId="0" pageNumber="125">
<emphasis id="0996AFADC96CC54C80DAACA008070FC3" bold="true" pageId="0" pageNumber="125">
<emphasis id="F575029F7AB31F380195CB48ED6FE50D" italics="true" pageId="0" pageNumber="125">Variation</emphasis>
.
</emphasis>
Only a single specimen was examined.
</paragraph>
</subSubSection>
<subSubSection id="CC6E75BC873079F8CCF70D8DF4056ADC" pageId="0" pageNumber="125" type="materials_examined">
<paragraph id="D2AD9BF24551AAD006A68BBE28F57CC8" pageId="0" pageNumber="125">Material examined.</paragraph>
<paragraph id="43B1A591138E5C3754AB4B595BB443C0" pageId="0" pageNumber="125">
A single male specimen examined labeled, &quot;271297
<collectingCountry id="3A1DC6FCE8C0EC8AA882B1AB591BAC42" name="Peru">PERU</collectingCountry>
ZUNGARO COHA 16u:TO [handwritten, somewhat illegible].&quot;
</paragraph>
</subSubSection>
</treatment>
</document>