278 lines
31 KiB
XML
278 lines
31 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.963.53470" ID-GBIF-Dataset="0831704f-4ecf-4989-8072-defde35921ec" ID-PMC="PMC7458944" ID-Pensoft-Pub="1313-2970-963-45" ID-Pensoft-UUID="FE8C7A0A85B45DF7848BFAB844F93C28" ID-PubMed="32922131" ID-ZooBank="9636C9F2C6BD4B34BCC6ED214C7B0D19" ModsDocID="1313-2970-963-45" checkinTime="1598316761636" checkinUser="pensoft" docAuthor="Englund, William F., Njoroge, Laban, Bistroem, Olof, Miller, Kelly B., Bilton, David T. & Bergsten, Johannes" docDate="2020" docId="49160C6A22265941BC5E7342B0895666" docLanguage="en" docName="ZooKeys 963: 45-79" docOrigin="ZooKeys 963" docSource="http://dx.doi.org/10.3897/zookeys.963.53470" docTitle="Agabus agulhas Englund & Njoroge & Biström & Miller & Bilton & Bergsten 2020, sp. nov." docType="treatment" docUuid="FD6B9312-065E-4B96-9FDF-9B1C45EA8D69" docUuidSource="ZooBank" docVersion="4" id="FE8C7A0A85B45DF7848BFAB844F93C28" lastPageNumber="45" masterDocId="FE8C7A0A85B45DF7848BFAB844F93C28" masterDocTitle="Taxonomic revision of the Afrotropical Agabus raffrayi species group with the description of four new species (Coleoptera, Dytiscidae)" masterLastPageNumber="79" masterPageNumber="45" pageNumber="45" updateTime="1668169378299" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Taxonomic revision of the Afrotropical Agabus raffrayi species group with the description of four new species (Coleoptera, Dytiscidae)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Englund, William F.</mods:namePart>
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<mods:affiliation>Swedish Museum of Natural History, Department of Zoology, Box 50007, SE- 10405 Stockholm, Sweden</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Njoroge, Laban</mods:namePart>
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<mods:affiliation>National Museums of Kenya, Section of Invertebrate Zoology, Museum Hill, P. O. BOX 40658 - 00100, Nairobi, Kenya</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Bistroem, Olof</mods:namePart>
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<mods:affiliation>Finnish Museum of Natural History, Zoology Unit, P. O. Box 17, FI- 00014 University of Helsinki, Finland</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Miller, Kelly B.</mods:namePart>
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<mods:affiliation>Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131 - 0001, USA</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Bilton, David T.</mods:namePart>
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<mods:affiliation>Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL 4 8 AA, UK & Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Bergsten, Johannes</mods:namePart>
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<mods:affiliation>Swedish Museum of Natural History, Department of Zoology, Box 50007, SE- 10405 Stockholm, Sweden</mods:affiliation>
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<mods:nameIdentifier type="email">johannes.bergsten@nrm.se</mods:nameIdentifier>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>963</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>45</mods:start>
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<mods:end>79</mods:end>
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</mods:extent>
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</mods:part>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.963.53470</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.963.53470</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-963-45</mods:identifier>
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<mods:identifier type="ZooBank">9636C9F2C6BD4B34BCC6ED214C7B0D19</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FE8C7A0A85B45DF7848BFAB844F93C28</mods:identifier>
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<treatment ID-GBIF-Taxon="167293854" LSID="urn:lsid:zoobank.org:act:FD6B9312-065E-4B96-9FDF-9B1C45EA8D69" httpUri="http://treatment.plazi.org/id/49160C6A22265941BC5E7342B0895666" lastPageNumber="45" pageId="0" pageNumber="45">
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<subSubSection pageId="0" pageNumber="45" type="nomenclature">
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<paragraph pageId="0" pageNumber="45">
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<taxonomicName LSID="49160C6A-2226-5941-BC5E-7342B0895666" authority="Bilton, Englund & Bergsten" authorityName="Englund & Njoroge & Biström & Miller & Bilton & Bergsten" authorityYear="2020" class="Insecta" family="Dytiscidae" genus="Agabus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Agabus agulhas" order="Coleoptera" pageId="0" pageNumber="45" phylum="Arthropoda" rank="species" species="agulhas" status="sp. nov.">Agabus agulhas Bilton, Englund & Bergsten</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="45">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Distribution map of the Agabus raffrayi group. Relief is expressed in meters above sea level." figureDoi="10.3897/zookeys.963.53470.figure1" httpUri="https://binary.pensoft.net/fig/444398" pageId="0" pageNumber="45">Figures 1</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. South African Agabus spp., aedeagal apices, lateral view A A. austellus sp. nov. holotype, Keurboom, Western Cape B A. austellus sp. nov., Gydo Pass, Western Cape C A. austellus sp. nov. Groote Swartberg, Western Cape D A. austellus sp. nov. Sentinel Peak, KZN Drakensberg E A. riberae sp. nov. holotype, Kamiesberg, Northern Cape; F A. riberae sp. nov. paratype, Kamiesberg, Northern Cape G A. agulhas sp. nov. holotype, Rattelrivier, Western Cape." figureDoi="10.3897/zookeys.963.53470.figure6" httpUri="https://binary.pensoft.net/fig/444403" pageId="0" pageNumber="45">, 6G</figureCitation>
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Agabus spp., aedeagus in lateral view A A. sjostedti B A. dytiscoides C A. ruwenzoricus D A. raffrayi E A. pallidus F A. anguluverpus sp. nov. G A. austellus sp. nov. H A. riberae sp. nov. I A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure8" httpUri="https://binary.pensoft.net/fig/444405" pageId="0" pageNumber="45">, 8I</figureCitation>
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<figureCitation captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. South African Agabus spp., microreticulation of male elytral disc A A. austellus sp. nov. holotype, Keurboom, Western Cape B A. austellus sp. nov. Groote Swartberg, Western Cape C A. austellus sp. nov. Sentinel Peak, KZN Drakensberg D A. austellus sp. nov. Harkerville Forest, Western Cape E A. riberae sp. nov. Kamiesberg, Northern Cape F A. agulhas sp. nov. holotype, Rattelrivier, Western Cape." figureDoi="10.3897/zookeys.963.53470.figure9" httpUri="https://binary.pensoft.net/fig/444406" pageId="0" pageNumber="45">, 9F</figureCitation>
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<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Agabus spp., habitus of males in dorsal view A, F A. sjostedti B, G A. dytiscoides; C, H A. ruwenzoricus D, I A. raffrayi E, J A. pallidus K, O A. anguluverpus sp. nov. L, P A. austellus sp. nov. M, Q A. riberae sp. nov. N, R A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure11" httpUri="https://binary.pensoft.net/fig/444408" pageId="0" pageNumber="45">, 11N</figureCitation>
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<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Agabus spp., habitus of males in dorsal view A, F A. sjostedti B, G A. dytiscoides; C, H A. ruwenzoricus D, I A. raffrayi E, J A. pallidus K, O A. anguluverpus sp. nov. L, P A. austellus sp. nov. M, Q A. riberae sp. nov. N, R A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure11" httpUri="https://binary.pensoft.net/fig/444408" pageId="0" pageNumber="45">, 11R</figureCitation>
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<figureCitation captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. The ratio between width of the metacoxal plate and metasternal wing (WC / WS) in the A. raffrayi group (incl. specimens of both sexes). Thick black line inside boxes represents medians, left and right box borders 25 th (Q 1) and 75 th (Q 3) percentiles respectively. Whiskers were calculated with the boxplot. stats function in R using the default coefficient value of 1.5 (drawn to the highest and lowest value within 1.5 * IQD (Inter Quartile Distance = Q 3 - Q 1) away from the 75 th and 25 th percentiles respectively). Note that this character fully separates A. raffrayi from A. pallidus." figureDoi="10.3897/zookeys.963.53470.figure12" httpUri="https://binary.pensoft.net/fig/444409" pageId="0" pageNumber="45">, 12</figureCitation>
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<figureCitation captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. The ratio between pronotal width and interocular distance in males of the Agabus raffrayi group. Symbols as in Fig. 12. Note the very narrow pronotum of A. dytiscoides, a distinguishing feature of this species." figureDoi="10.3897/zookeys.963.53470.figure13" httpUri="https://binary.pensoft.net/fig/444410" pageId="0" pageNumber="45">, 13</figureCitation>
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<figureCitation captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. The ratio between length of protarsal claw and length of protarsomere 4 in males of the Agabus raffrayi group. Symbols as in Fig. 12. Note the short claws of A. sjostedti and A. dytiscoides." figureDoi="10.3897/zookeys.963.53470.figure14" httpUri="https://binary.pensoft.net/fig/444411" pageId="0" pageNumber="45">, 14</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="45" type="type locality">
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<paragraph pageId="0" pageNumber="45">Type locality.</paragraph>
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<paragraph pageId="0" pageNumber="45">
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South Africa, Western Cape Province, Rooistrandveld, Bredasdorp, natural viei beside road to Die Dam at Ratelrivier
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<geoCoordinate degrees="34" direction="south" minutes="43" orientation="latitude" precision="1" seconds="00.47" value="-34.716797">34°43'00.47"S</geoCoordinate>
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,
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<geoCoordinate degrees="19" direction="east" minutes="41" orientation="longitude" precision="1" seconds="53.81" value="19.69828">19°41'53.81"E</geoCoordinate>
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, 31 m.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="45" type="type material">
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<paragraph pageId="0" pageNumber="45">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="45">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Holotype</emphasis>
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♂ (AMG) labelled: "26/ix/2010 South Africa WC Rooistrandveld, Bredasdorp natural viei beside road to Die Dam @ Ratelrivier FW marsh with tussocks etc. D. T. Bilton leg.".
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<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Paratypes</emphasis>
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3 ♂ 2 ♀ (AMG, CBP, NHRS, ZSM) labelled: "26/ix/2010 South Africa WC Rooistrandveld, Bredasdorp natural viei beside road to Die Dam @ Ratelrivier FW marsh with tussocks etc. D. T. Bilton leg.".
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="45" type="diagnosis">
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<paragraph pageId="0" pageNumber="45">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="45">
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Very similar to
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<taxonomicName lsidName="A. austellus" pageId="0" pageNumber="45" rank="species" species="austellus">
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<emphasis italics="true" pageId="0" pageNumber="45">A. austellus</emphasis>
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</taxonomicName>
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sp. nov. and
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<taxonomicName lsidName="A. riberae" pageId="0" pageNumber="45" rank="species" species="riberae">
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<emphasis italics="true" pageId="0" pageNumber="45">A. riberae</emphasis>
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</taxonomicName>
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sp. nov., but distinguishable by the distinctly curved base of the aedeagal subapical tooth (compare Fig.
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Agabus spp., aedeagus in lateral view A A. sjostedti B A. dytiscoides C A. ruwenzoricus D A. raffrayi E A. pallidus F A. anguluverpus sp. nov. G A. austellus sp. nov. H A. riberae sp. nov. I A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure8" httpUri="https://binary.pensoft.net/fig/444405" pageId="0" pageNumber="45">8I</figureCitation>
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with Fig.
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Agabus spp., aedeagus in lateral view A A. sjostedti B A. dytiscoides C A. ruwenzoricus D A. raffrayi E A. pallidus F A. anguluverpus sp. nov. G A. austellus sp. nov. H A. riberae sp. nov. I A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure8" httpUri="https://binary.pensoft.net/fig/444405" pageId="0" pageNumber="45">8G, H</figureCitation>
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and see Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. South African Agabus spp., aedeagal apices, lateral view A A. austellus sp. nov. holotype, Keurboom, Western Cape B A. austellus sp. nov., Gydo Pass, Western Cape C A. austellus sp. nov. Groote Swartberg, Western Cape D A. austellus sp. nov. Sentinel Peak, KZN Drakensberg E A. riberae sp. nov. holotype, Kamiesberg, Northern Cape; F A. riberae sp. nov. paratype, Kamiesberg, Northern Cape G A. agulhas sp. nov. holotype, Rattelrivier, Western Cape." figureDoi="10.3897/zookeys.963.53470.figure6" httpUri="https://binary.pensoft.net/fig/444403" pageId="0" pageNumber="45">6G</figureCitation>
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), the scutellum being lighter than the elytra and its relatively narrow metasternal wing (see Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological characters in the Agabus raffrayi group. WC / WS = width of metacoxal plate / width of metasternal wing, PW / ID = width of pronotum / interocular distance, TL = total body length, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/EC20EA9B30576BE179C66F15DBC0C3C6" pageId="0" pageNumber="45" tableUuid="EC20EA9B30576BE179C66F15DBC0C3C6">1</tableCitation>
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and Fig.
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<figureCitation captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. The ratio between width of the metacoxal plate and metasternal wing (WC / WS) in the A. raffrayi group (incl. specimens of both sexes). Thick black line inside boxes represents medians, left and right box borders 25 th (Q 1) and 75 th (Q 3) percentiles respectively. Whiskers were calculated with the boxplot. stats function in R using the default coefficient value of 1.5 (drawn to the highest and lowest value within 1.5 * IQD (Inter Quartile Distance = Q 3 - Q 1) away from the 75 th and 25 th percentiles respectively). Note that this character fully separates A. raffrayi from A. pallidus." figureDoi="10.3897/zookeys.963.53470.figure12" httpUri="https://binary.pensoft.net/fig/444409" pageId="0" pageNumber="45">12</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="45" type="description">
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<paragraph pageId="0" pageNumber="45">Description.</paragraph>
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<paragraph pageId="0" pageNumber="45">
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Habitus as in Fig.
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<figureCitation captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Agabus spp., habitus of males in dorsal view A, F A. sjostedti B, G A. dytiscoides; C, H A. ruwenzoricus D, I A. raffrayi E, J A. pallidus K, O A. anguluverpus sp. nov. L, P A. austellus sp. nov. M, Q A. riberae sp. nov. N, R A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure11" httpUri="https://binary.pensoft.net/fig/444408" pageId="0" pageNumber="45">11N, R</figureCitation>
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.
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</paragraph>
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<paragraph pageId="0" pageNumber="45">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Colour</emphasis>
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: Head black with weak rufous interocular spots and an anterior rufous area. Pronotum black with slightly rufous margins. Elytra blackish brown to black, with a lighter scutellum. Ventral surface black, testaceous lines on abdominal segments reduced or absent, hypomeron and epipleuron rufotestaceous to rufous. Legs rufopiceous to rufous. Antennae and palpi testacous.
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</paragraph>
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<paragraph pageId="0" pageNumber="45">
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<taxonomicName genus="Microreticulation" lsidName="Microreticulation" pageId="0" pageNumber="45" rank="genus">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Microreticulation</emphasis>
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</taxonomicName>
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: Relatively fine on both pronotum and elytra, and slightly more impressed in females. The microreticulation of the elytral disc is composed of a mix of small and larger, somewhat irregular meshes (Fig.
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<figureCitation captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. South African Agabus spp., microreticulation of male elytral disc A A. austellus sp. nov. holotype, Keurboom, Western Cape B A. austellus sp. nov. Groote Swartberg, Western Cape C A. austellus sp. nov. Sentinel Peak, KZN Drakensberg D A. austellus sp. nov. Harkerville Forest, Western Cape E A. riberae sp. nov. Kamiesberg, Northern Cape F A. agulhas sp. nov. holotype, Rattelrivier, Western Cape." figureDoi="10.3897/zookeys.963.53470.figure9" httpUri="https://binary.pensoft.net/fig/444406" pageId="0" pageNumber="45">9F</figureCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="45">
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<taxonomicName genus="Structural" lsidName="Structural features" pageId="0" pageNumber="45" rank="species" species="features">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Structural features</emphasis>
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</taxonomicName>
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: Body length: 7.60-8.00 mm (see Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological characters in the Agabus raffrayi group. WC / WS = width of metacoxal plate / width of metasternal wing, PW / ID = width of pronotum / interocular distance, TL = total body length, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/EC20EA9B30576BE179C66F15DBC0C3C6" pageId="0" pageNumber="45" tableUuid="EC20EA9B30576BE179C66F15DBC0C3C6">1</tableCitation>
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). Hypomeron marginally visible in strict lateral view, lateral bead of pronotum narrow and well defined. Metasternal wing very narrow, WC/WS> 3.6 in all specimens (see Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological characters in the Agabus raffrayi group. WC / WS = width of metacoxal plate / width of metasternal wing, PW / ID = width of pronotum / interocular distance, TL = total body length, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/EC20EA9B30576BE179C66F15DBC0C3C6" pageId="0" pageNumber="45" tableUuid="EC20EA9B30576BE179C66F15DBC0C3C6">1</tableCitation>
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and Fig.
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<figureCitation captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. The ratio between width of the metacoxal plate and metasternal wing (WC / WS) in the A. raffrayi group (incl. specimens of both sexes). Thick black line inside boxes represents medians, left and right box borders 25 th (Q 1) and 75 th (Q 3) percentiles respectively. Whiskers were calculated with the boxplot. stats function in R using the default coefficient value of 1.5 (drawn to the highest and lowest value within 1.5 * IQD (Inter Quartile Distance = Q 3 - Q 1) away from the 75 th and 25 th percentiles respectively). Note that this character fully separates A. raffrayi from A. pallidus." figureDoi="10.3897/zookeys.963.53470.figure12" httpUri="https://binary.pensoft.net/fig/444409" pageId="0" pageNumber="45">12</figureCitation>
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). Pronotum broad, more than twice as broad as interocular distance (see Table
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<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological characters in the Agabus raffrayi group. WC / WS = width of metacoxal plate / width of metasternal wing, PW / ID = width of pronotum / interocular distance, TL = total body length, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/EC20EA9B30576BE179C66F15DBC0C3C6" pageId="0" pageNumber="45" tableUuid="EC20EA9B30576BE179C66F15DBC0C3C6">1</tableCitation>
|
||
and Fig.
|
||
<figureCitation captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. The ratio between pronotal width and interocular distance in males of the Agabus raffrayi group. Symbols as in Fig. 12. Note the very narrow pronotum of A. dytiscoides, a distinguishing feature of this species." figureDoi="10.3897/zookeys.963.53470.figure13" httpUri="https://binary.pensoft.net/fig/444410" pageId="0" pageNumber="45">13</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Legs</emphasis>
|
||
: Protarsal claws very long,> 1.8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as protarsomere 4 in all males (see Table
|
||
<tableCitation captionStart="Table 2" captionStartId="T2" captionText="Table 2. Morphological characters in the Agabus raffrayi group. MT 2 L / MT 2 W = length / width of metatarsomere 2, MT 5 L / MT 5 W = length / width of metatarsomere 5, CL / PT 4 L = length of protarsal claw / length of protarsomere 4, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/59FBA533E2ADB4142B7B5363E75795AF" pageId="0" pageNumber="45" tableUuid="59FBA533E2ADB4142B7B5363E75795AF">2</tableCitation>
|
||
& Fig.
|
||
<figureCitation captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. The ratio between length of protarsal claw and length of protarsomere 4 in males of the Agabus raffrayi group. Symbols as in Fig. 12. Note the short claws of A. sjostedti and A. dytiscoides." figureDoi="10.3897/zookeys.963.53470.figure14" httpUri="https://binary.pensoft.net/fig/444411" pageId="0" pageNumber="45">14</figureCitation>
|
||
). Metatarsomeres short and broad; metatarsomere 2 <1.8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as broad (see Table
|
||
<tableCitation captionStart="Table 2" captionStartId="T2" captionText="Table 2. Morphological characters in the Agabus raffrayi group. MT 2 L / MT 2 W = length / width of metatarsomere 2, MT 5 L / MT 5 W = length / width of metatarsomere 5, CL / PT 4 L = length of protarsal claw / length of protarsomere 4, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/59FBA533E2ADB4142B7B5363E75795AF" pageId="0" pageNumber="45" tableUuid="59FBA533E2ADB4142B7B5363E75795AF">2</tableCitation>
|
||
), metatarsomere 5 <3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as broad in all specimens (see Table
|
||
<tableCitation captionStart="Table 2" captionStartId="T2" captionText="Table 2. Morphological characters in the Agabus raffrayi group. MT 2 L / MT 2 W = length / width of metatarsomere 2, MT 5 L / MT 5 W = length / width of metatarsomere 5, CL / PT 4 L = length of protarsal claw / length of protarsomere 4, N = number of specimens, Min = minimum value, Max = maximum value, SD = standard deviation, NA = not applicable." httpUri="http://table.plazi.org/id/59FBA533E2ADB4142B7B5363E75795AF" pageId="0" pageNumber="45" tableUuid="59FBA533E2ADB4142B7B5363E75795AF">2</tableCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="45">Male genitalia</emphasis>
|
||
: Aedeagus without the prolonged section between subapical broadening and the apical and subapical teeth which is present in some species in the group. In ventral view the apex is asymmetrically curved. Base of subapical tooth distinctly curved basally (see Figs
|
||
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Agabus spp., aedeagus in lateral view A A. sjostedti B A. dytiscoides C A. ruwenzoricus D A. raffrayi E A. pallidus F A. anguluverpus sp. nov. G A. austellus sp. nov. H A. riberae sp. nov. I A. agulhas sp. nov." figureDoi="10.3897/zookeys.963.53470.figure8" httpUri="https://binary.pensoft.net/fig/444405" pageId="0" pageNumber="45">8I</figureCitation>
|
||
,
|
||
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. South African Agabus spp., aedeagal apices, lateral view A A. austellus sp. nov. holotype, Keurboom, Western Cape B A. austellus sp. nov., Gydo Pass, Western Cape C A. austellus sp. nov. Groote Swartberg, Western Cape D A. austellus sp. nov. Sentinel Peak, KZN Drakensberg E A. riberae sp. nov. holotype, Kamiesberg, Northern Cape; F A. riberae sp. nov. paratype, Kamiesberg, Northern Cape G A. agulhas sp. nov. holotype, Rattelrivier, Western Cape." figureDoi="10.3897/zookeys.963.53470.figure6" httpUri="https://binary.pensoft.net/fig/444403" pageId="0" pageNumber="45">6G</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">
|
||
<emphasis bold="true" pageId="0" pageNumber="45">Female</emphasis>
|
||
: Externally similar to males. Dorsal microreticulation slightly more impressed than in males.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="45" type="distribution">
|
||
<paragraph pageId="0" pageNumber="45">Distribution.</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">
|
||
Only known from the type locality, a lowland valley wetland at 31 m on the Agulhas Plain, Western Cape Province, Republic of South Africa (see Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Distribution map of the Agabus raffrayi group. Relief is expressed in meters above sea level." figureDoi="10.3897/zookeys.963.53470.figure1" httpUri="https://binary.pensoft.net/fig/444398" pageId="0" pageNumber="45">1</figureCitation>
|
||
). The most southerly distributed
|
||
<taxonomicName class="Insecta" family="Dytiscidae" genus="Agabus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Agabus" order="Coleoptera" pageId="0" pageNumber="45" phylum="Arthropoda" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">Agabus</emphasis>
|
||
</taxonomicName>
|
||
species in the world.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="45" type="ecology">
|
||
<paragraph pageId="0" pageNumber="45">Ecology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">Collected from the base of large tussocks in a valley wetland. Despite having largely lentic conditions, this is likely to experience some seepage flow, particularly following periods of high rainfall in winter and spring.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="45" type="etymology">
|
||
<paragraph pageId="0" pageNumber="45">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">
|
||
Named after the Agulhas Plain, on which the type locality is situated. The Agulhas Plain is itself named in reference to nearby Cape Agulhas (Portuguese - Cabo das Agulhas = Cape of Needles), the most southerly point on the African continent. As with other members of the species group,
|
||
<taxonomicName lsidName="A. agulhas" pageId="0" pageNumber="45" rank="species" species="agulhas">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">A. agulhas</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. has sharp, needle-like, teeth at the aedeagal apex.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="45" type="comments">
|
||
<paragraph pageId="0" pageNumber="45">Comments.</paragraph>
|
||
<paragraph pageId="0" pageNumber="45">
|
||
COI sequence divergence between
|
||
<taxonomicName lsidName="A. agulhas" pageId="0" pageNumber="45" rank="species" species="agulhas">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">A. agulhas</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. and
|
||
<taxonomicName lsidName="A. austellus" pageId="0" pageNumber="45" rank="species" species="austellus">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">A. austellus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. ranges from 3.9 to 4.7%; that between
|
||
<taxonomicName lsidName="A. agulhas" pageId="0" pageNumber="45" rank="species" species="agulhas">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">A. agulhas</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. and
|
||
<taxonomicName lsidName="A. riberae" pageId="0" pageNumber="45" rank="species" species="riberae">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">A. riberae</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. being 6.4% (I. Ribera, pers. comm.).
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.963.53470.figure19" httpUri="https://binary.pensoft.net/fig/444416" pageId="0" pageNumber="45" start="Figure 19" startId="F19">
|
||
<paragraph pageId="0" pageNumber="45">
|
||
<emphasis bold="true" pageId="0" pageNumber="45">Figure 19.</emphasis>
|
||
Tra-Tra River at 485 m at Wupperthal, Cederberg range, Western Cape Province, South Africa. Locality for
|
||
<taxonomicName authorityName="Bilton, Englund & Bergsten" authorityYear="2020" class="Insecta" family="Dytiscidae" genus="Agabus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Agabus riberae" order="Coleoptera" pageId="0" pageNumber="45" phylum="Arthropoda" rank="species" species="riberae">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">Agabus riberae</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. September 28, 2018. Photo Stacey DeAmicis.
|
||
</paragraph>
|
||
</caption>
|
||
<caption doi="10.3897/zookeys.963.53470.figure20" httpUri="https://binary.pensoft.net/fig/444417" pageId="0" pageNumber="45" start="Figure 20" startId="F20">
|
||
<paragraph pageId="0" pageNumber="45">
|
||
<emphasis bold="true" pageId="0" pageNumber="45">Figure 20.</emphasis>
|
||
Lake Ellis on Mount Kenya, Kenya. Type locality for
|
||
<taxonomicName authorityName="Englund, Njoroge & Bergsten" authorityYear="2020" class="Insecta" family="Dytiscidae" genus="Agabus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Agabus anguluverpus" order="Coleoptera" pageId="0" pageNumber="45" phylum="Arthropoda" rank="species" species="anguluverpus">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">Agabus anguluverpus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. September 17, 2015. Photo Wanyoike Wamiti.
|
||
</paragraph>
|
||
</caption>
|
||
<caption doi="10.3897/zookeys.963.53470.figure21" httpUri="https://binary.pensoft.net/fig/444418" pageId="0" pageNumber="45" start="Figure 21" startId="F21">
|
||
<paragraph pageId="0" pageNumber="45">
|
||
<emphasis bold="true" pageId="0" pageNumber="45">Figure 21.</emphasis>
|
||
Part of Lake Ellis on Mount Kenya, Kenya. Type locality for
|
||
<taxonomicName authorityName="Englund, Njoroge & Bergsten" authorityYear="2020" class="Insecta" family="Dytiscidae" genus="Agabus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Agabus anguluverpus" order="Coleoptera" pageId="0" pageNumber="45" phylum="Arthropoda" rank="species" species="anguluverpus">
|
||
<emphasis italics="true" pageId="0" pageNumber="45">Agabus anguluverpus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. September 17, 2015. Photo Wanyoike Wamiti.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |