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<document id="5EF78C9106465C2404005033E0DCD993" ID-CLB-Dataset="31639" ID-DOI="10.11646/zootaxa.4342.1.1" ID-GBIF-Dataset="15799d2a-1968-4874-8100-452597d4e26b" ID-ISSN="1175-5326" ID-Zenodo-Dep="1041066" ID-ZooBank="2ACD54D2-3487-432D-9323-EEC131FE2E64" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1509694849742" checkinUser="plazi" docAuthor="Perkins, Philip D." docDate="2017" docId="038587BBE398FF31FF75FAFBBC3BFEE1" docLanguage="en" docName="zootaxa.4342.1.1.pdf.imf" docOrigin="Zootaxa 4342 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Limnebius Leach 1815" docType="treatment" docVersion="9" lastPageNumber="161" masterDocId="FFBCFFC3E307FF91FFE2FFA5B93CFF85" masterDocTitle="Hydraenidae of Madagascar (Insecta: Coleoptera)" masterLastPageNumber="264" masterPageNumber="1" pageNumber="160" updateTime="1698480684898" updateUser="ExternalLinkService">
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<mods:title id="F74879DB31A53D809FB41E8875A64D28">Hydraenidae of Madagascar (Insecta: Coleoptera)</mods:title>
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<mods:namePart id="519B887969A07D1B042F3908EDA2245A">Perkins, Philip D.</mods:namePart>
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<treatment id="038587BBE398FF31FF75FAFBBC3BFEE1" ID-DOI="http://doi.org/10.5281/zenodo.5323690" ID-GBIF-Taxon="137233395" ID-Zenodo-Dep="5323690" LSID="urn:lsid:plazi:treatment:038587BBE398FF31FF75FAFBBC3BFEE1" httpUri="http://treatment.plazi.org/id/038587BBE398FF31FF75FAFBBC3BFEE1" lastPageId="160" lastPageNumber="161" pageId="159" pageNumber="160">
<subSubSection id="C3366526E398FF0EFF75FAFBBB2FF9AF" pageId="159" pageNumber="160" type="nomenclature">
<paragraph id="8B9336ADE398FF0EFF75FAFBBA11FAFD" blockId="159.[151,813,1374,1400]" box="[151,813,1374,1400]" pageId="159" pageNumber="160">
<heading id="D0DB81C1E398FF0EFF75FAFBBA11FAFD" bold="true" box="[151,813,1374,1400]" fontSize="11" level="1" pageId="159" pageNumber="160" reason="1">
<emphasis id="B958EABFE398FF0EFF75FAFBBA11FAFD" bold="true" box="[151,813,1374,1400]" pageId="159" pageNumber="160">
<taxonomicName id="4C2C4D2EE398FF0EFF75FAFBB893FAFD" ID-CoL="8VRSL" authority="Leach 1815" authorityName="Leach" authorityYear="1815" box="[151,431,1374,1400]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE398FF0EFF75FAFBB824FAFD" bold="true" box="[151,280,1374,1400]" italics="true" pageId="159" pageNumber="160">Limnebius</emphasis>
Leach 1815
</taxonomicName>
, subgenus
<taxonomicName id="4C2C4D2EE398FF0EFDD5FAFBBA11FAFD" authority="Rey 1883" authorityName="Rey" authorityYear="1883" box="[567,813,1374,1400]" class="Insecta" family="Hydraenidae" genus="Bilimneus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE398FF0EFDD5FAFBBB8FFAFD" bold="true" box="[567,691,1374,1400]" italics="true" pageId="159" pageNumber="160">Bilimneus</emphasis>
Rey 1883
</taxonomicName>
</emphasis>
</heading>
</paragraph>
<paragraph id="8B9336ADE398FF0EFF75FA00BB2FF9AF" blockId="159.[151,1436,1445,2010]" pageId="159" pageNumber="160">
Previously unrecorded for Madagascar, ten new species of
<taxonomicName id="4C2C4D2EE398FF0EFCCAFA00BAA1FA3B" authorityName="Leach" authorityYear="1815" box="[808,925,1445,1470]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE398FF0EFCCAFA00BAA1FA3B" box="[808,925,1445,1470]" italics="true" pageId="159" pageNumber="160">Limnebius</emphasis>
</taxonomicName>
are described herein. The species are, as is so common for the genus, very similar in external morphology; reliable determinations require examination of the aedeagi, in temporary slide mounts, with a compound microscope. Species vary in size from ca.
<quantity id="4CD49B48E398FF0EFB02FA4BBC7AF980" box="[1248,1350,1518,1542]" metricMagnitude="-4" metricUnit="m" metricValue="7.7" pageId="159" pageNumber="160" unit="mm" value="0.77">0.77 mm</quantity>
to
<quantity id="4CD49B48E398FF0EFA89FA48B9F9F9AC" metricMagnitude="-3" metricUnit="m" metricValue="1.15" pageId="159" pageNumber="160" unit="mm" value="1.15">1.15 mm</quantity>
, and are very similar in color.
</paragraph>
</subSubSection>
<subSubSection id="C3366526E398FF31FF25F990BC3BFEE1" lastPageId="160" lastPageNumber="161" pageId="159" pageNumber="160" type="description">
<paragraph id="8B9336ADE398FF0EFF25F990BD2DF93C" blockId="159.[151,1436,1445,2010]" pageId="159" pageNumber="160">
<taxonomicName id="4C2C4D2EE398FF0EFF25F990B800F9CB" authorityName="Leach" authorityYear="1815" box="[199,316,1589,1614]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE398FF0EFF25F990B800F9CB" box="[199,316,1589,1614]" italics="true" pageId="159" pageNumber="160">Limnebius</emphasis>
</taxonomicName>
in
<collectingCountry id="F33B763DE398FF0EFE86F990B8D7F9CB" box="[356,491,1589,1614]" name="Madagascar" pageId="159" pageNumber="160">Madagascar</collectingCountry>
have been collected in both streams and ponds. Specimens have been collected at localities from sea level up to
<quantity id="4CD49B48E398FF0EFE12F9FFBB7EF9F7" box="[496,578,1626,1650]" metricMagnitude="3" metricUnit="m" metricValue="1.47" pageId="159" pageNumber="160" unit="m" value="1470.0">1470m</quantity>
. Some species have a wide altitudinal range; for example
<taxonomicName id="4C2C4D2EE398FF0EFB35F9FFBC53F9F7" authorityName="Perkins" authorityYear="2017" box="[1239,1391,1625,1650]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="species" species="nanostillus">
<emphasis id="B958EABFE398FF0EFB35F9FFBC53F9F7" box="[1239,1391,1625,1650]" italics="true" pageId="159" pageNumber="160">H nanostillus</emphasis>
</taxonomicName>
has been collected at six localities at elevations of 50, 71, 400, 545, 781, and 1470 meters. Other species appear to have a narrower range, for example
<taxonomicName id="4C2C4D2EE398FF0EFE12F907BB48F93F" authorityName="Perkins" authorityYear="2017" box="[496,628,1697,1722]" class="Insecta" family="Hydraenidae" genus="Hydraena" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="species" species="bergsteni">
<emphasis id="B958EABFE398FF0EFE12F907BB48F93F" box="[496,628,1697,1722]" italics="true" pageId="159" pageNumber="160">L. bergsteni</emphasis>
</taxonomicName>
with a known range of
<quantity id="4CD49B48E398FF0EFC9CF907BD31F93C" box="[894,1037,1698,1722]" metricMagnitude="3" metricUnit="m" metricValue="1.0" metricValueMax="1.1" metricValueMin="0.9" pageId="159" pageNumber="160" unit="m" value="1000.0" valueMax="1100.0" valueMin="900.0">9001100 m</quantity>
.
</paragraph>
<paragraph id="8B9336ADE398FF0EFF25F960BD51F85F" blockId="159.[151,1436,1445,2010]" pageId="159" pageNumber="160">
Based on the structure of the aedeagus the Malagasy species appear to be related to species from
<collectingCountry id="F33B763DE398FF0EFAEEF960BCA0F95B" box="[1292,1436,1733,1758]" name="South Africa" pageId="159" pageNumber="160">
<collectingRegion id="49E8F84FE398FF0EFAEEF960BC71F95B" box="[1292,1357,1733,1758]" country="Tanzania" name="Kusini Unguja" pageId="159" pageNumber="160">South</collectingRegion>
Africa
</collectingCountry>
(see
<bibRefCitation id="EFBD4B5CE398FF0EFF29F94CB85DF887" author="Perkins" box="[203,353,1769,1794]" pageId="159" pageNumber="160" refString="Perkins, P. D. (2015) Taxonomy of the water beetle genus Limnebius in southern Africa (Coleoptera: Hydraenidae). Zootaxa, 3948 (1), 41 - 59. https: // doi. org / 10.11646 / zootaxa. 3948.1.3" type="journal article" year="2015">Perkins 2015</bibRefCitation>
) and
<collectingCountry id="F33B763DE398FF0EFE7DF94CBB3AF887" box="[415,518,1769,1794]" name="Australia" pageId="159" pageNumber="160">Australia</collectingCountry>
(Perkins 2004). The aedeagi have an internal capsule, which is located in various positions in the main piece, but always above the basal curve (i.e., not located in a basal bulb). In some Malagasy species the capsule occupies nearly the entire length of the main piece (e.g.,
<figureCitation id="13172A28E398FF0EFC09F894BD76F8CF" box="[1003,1098,1841,1866]" captionStart="FIGURES 158 161" captionStartId="167.[151,264,1876,1899]" captionText="FIGURES 158 161. Limnebius, aedeagi of holotypes." pageId="159" pageNumber="160">Fig. 161</figureCitation>
) whereas in others (especially very long and slender aedeagi) the capsule is located in the distal 1/4 or 1/3 of the main piece (e.g.,
<figureCitation id="13172A28E398FF0EFAC9F8F0BCACF8EB" box="[1323,1424,1877,1902]" captionStart="FIGURES 154 157" captionStartId="166.[151,264,1912,1935]" captionText="FIGURES 154 157. Limnebius, aedeagi of holotypes." pageId="159" pageNumber="160">Fig. 156</figureCitation>
). Within the capsule, or with the tip slightly emerging subapically on the main piece, is the protrudable gonopore bearing duct; the duct varies in size among the species. The single species of
<taxonomicName id="4C2C4D2EE398FF0EFC1BF838BD52F833" authorityName="Leach" authorityYear="1815" box="[1017,1134,1949,1974]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE398FF0EFC1BF838BD52F833" box="[1017,1134,1949,1974]" italics="true" pageId="159" pageNumber="160">Limnebius</emphasis>
</taxonomicName>
known from
<collectingCountry id="F33B763DE398FF0EFAE4F838BC51F833" box="[1286,1389,1949,1974]" name="Australia" pageId="159" pageNumber="160">Australia</collectingCountry>
and
<collectingCountry id="F33B763DE398FF0EFF75F867B84EF85F" box="[151,370,1985,2010]" name="Papua New Guinea" pageId="159" pageNumber="160">Papua New Guinea</collectingCountry>
,
<taxonomicName id="4C2C4D2EE398FF0EFE9FF867BB44F85F" authority="Perkins" authorityName="Perkins" authorityYear="2004" box="[381,632,1985,2010]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="159" pageNumber="160" phylum="Arthropoda" rank="species" species="acupunctus">
<emphasis id="B958EABFE398FF0EFE9FF867BB26F85C" box="[381,538,1986,2009]" italics="true" pageId="159" pageNumber="160">L. acupunctus</emphasis>
Perkins
</taxonomicName>
, also has this aedeagal
<typeStatus id="5497880FE398FF0EFC9EF867BA90F85F" box="[892,940,1986,2010]" pageId="159" pageNumber="160">type</typeStatus>
(
<bibRefCitation id="EFBD4B5CE398FF0EFC58F864BD5DF85F" author="Perkins" box="[954,1121,1985,2010]" pageId="159" pageNumber="160" refString="Perkins, P. D. (2004 c) Limnebius acupunctus, a new species of water beetle from Australia and Papua New Guinea (Coleoptera: Hydraenidae). Zootaxa, 749, 1 - 12." type="journal article" year="2004" yearSuffix="c">Perkins 2004c</bibRefCitation>
).
</paragraph>
<paragraph id="8B9336ADE3A7FF31FF25FF32BC3BFEE1" blockId="160.[151,1436,151,357]" pageId="160" pageNumber="161">
Rudoy
<emphasis id="B958EABFE3A7FF31FEF8FF3CB86FFF35" box="[282,339,151,176]" italics="true" pageId="160" pageNumber="161">et al.</emphasis>
(2016) constructed a molecular phylogeny for the genus
<taxonomicName id="4C2C4D2EE3A7FF31FC3CFF32BD6FFF35" authorityName="Leach" authorityYear="1815" box="[990,1107,151,176]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE3A7FF31FC3CFF32BD6FFF35" box="[990,1107,151,176]" italics="true" pageId="160" pageNumber="161">Limnebius</emphasis>
</taxonomicName>
and found that there are two main lineages:
<emphasis id="B958EABFE3A7FF31FEA1FF19BB73FF51" box="[323,591,188,213]" italics="true" pageId="160" pageNumber="161">
<taxonomicName id="4C2C4D2EE3A7FF31FEA1FF19B884FF50" authority="Perkins, 2017" authorityName="Perkins" authorityYear="2017" box="[323,440,188,213]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="genus" sensu="stricto">Limnebius</taxonomicName>
<taxonomicNameLabel id="A26B57C4E3A7FF31FE22FF18BB73FF51" box="[448,591,189,212]" pageId="160" pageNumber="161" sensu="stricto">sensu stricto</taxonomicNameLabel>
</emphasis>
and
<taxonomicName id="4C2C4D2EE3A7FF31FD6AFF19BAB6FF51" authority="(Bilimneus)" authorityName="Perkins" authorityYear="2017" baseAuthorityName="Bilimneus" box="[648,906,188,213]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE3A7FF31FD6AFF19BBC1FF50" box="[648,765,188,213]" italics="true" pageId="160" pageNumber="161">Limnebius</emphasis>
(
<emphasis id="B958EABFE3A7FF31FCEDFF19BA43FF50" box="[783,895,188,213]" italics="true" pageId="160" pageNumber="161">Bilimneus</emphasis>
)
</taxonomicName>
; consequently the subgenus
<taxonomicName id="4C2C4D2EE3A7FF31FB32FF19BC7CFF50" authorityName="Rey" authorityYear="1883" box="[1232,1344,188,213]" class="Insecta" family="Hydraenidae" genus="Bilimneus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE3A7FF31FB32FF19BC7CFF50" box="[1232,1344,188,213]" italics="true" pageId="160" pageNumber="161">Bilimneus</emphasis>
</taxonomicName>
was reerected. Their DNA sequencing included three species of interest for this study:
<taxonomicName id="4C2C4D2EE3A7FF31FBB6FF44BC79FF7D" authority="Perkins" authorityName="Perkins" authorityYear="2015" box="[1108,1349,223,248]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="species" species="endroedyi">
<emphasis id="B958EABFE3A7FF31FBB6FF44BDDAFF7D" box="[1108,1254,223,248]" italics="true" pageId="160" pageNumber="161">L. endroedyi</emphasis>
Perkins
</taxonomicName>
(
<collectingCountry id="F33B763DE3A7FF31FABBFF7AB9DFFE98" name="South Africa" pageId="160" pageNumber="161">
<collectingRegion id="49E8F84FE3A7FF31FABBFF7ABCA0FF7D" box="[1369,1436,223,248]" country="Tanzania" name="Kusini Unguja" pageId="160" pageNumber="161">South</collectingRegion>
Africa
</collectingCountry>
),
<taxonomicName id="4C2C4D2EE3A7FF31FF15FEA0B8ADFE98" authority="Perkins, 2017" authorityName="Perkins" authorityYear="2017" box="[247,401,260,285]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="species" species="nanostillus" status="sp. nov.">
<emphasis id="B958EABFE3A7FF31FF15FEA0B8ADFE98" box="[247,401,260,285]" italics="true" pageId="160" pageNumber="161">L. nanostillus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26B57C4E3A7FF31FE78FEA1B8E6FE98" box="[410,474,260,285]" pageId="160" pageNumber="161" rank="species">
<emphasis id="B958EABFE3A7FF31FE78FEA1B8E6FE98" bold="true" box="[410,474,260,285]" pageId="160" pageNumber="161">n. sp.</emphasis>
</taxonomicNameLabel>
(specimen &quot;
<collectingCountry id="F33B763DE3A7FF31FD85FEA1BBCDFE98" box="[615,753,260,285]" name="Madagascar" pageId="160" pageNumber="161">Madagascar</collectingCountry>
AI549&quot;), and
<taxonomicName id="4C2C4D2EE3A7FF31FC75FEA0BDAEFE98" authority="Perkins" authorityName="Perkins" authorityYear="2004" box="[919,1170,260,285]" class="Insecta" family="Hydraenidae" genus="Limnebius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="species" species="acupunctus">
<emphasis id="B958EABFE3A7FF31FC75FEA0BD0AFE99" box="[919,1078,261,284]" italics="true" pageId="160" pageNumber="161">L. acupunctus</emphasis>
Perkins
</taxonomicName>
(
<collectingCountry id="F33B763DE3A7FF31FB40FEA1BC31FE98" box="[1186,1293,260,285]" name="Australia" pageId="160" pageNumber="161">Australia</collectingCountry>
,
<collectingCountry id="F33B763DE3A7FF31FAF8FEA0B9D1FEC5" name="Papua New Guinea" pageId="160" pageNumber="161">Papua New Guinea</collectingCountry>
). All three of these species group within
<taxonomicName id="4C2C4D2EE3A7FF31FD56FE82BD33FEC5" authority="(Rudoy et al., 2016)" authorityName="Rudoy et al." authorityYear="2016" box="[692,1039,295,320]" class="Insecta" family="Hydraenidae" genus="Bilimneus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE3A7FF31FD56FE82BA18FEC5" box="[692,804,295,320]" italics="true" pageId="160" pageNumber="161">Bilimneus</emphasis>
(Rudoy
<emphasis id="B958EABFE3A7FF31FC67FE8CBA81FEC5" box="[901,957,295,320]" italics="true" pageId="160" pageNumber="161">et al.</emphasis>
, 2016)
</taxonomicName>
. The aedeagi of all of the Malagasy species lack parameres, and the species are therefore considered members of the subgenus
<taxonomicName id="4C2C4D2EE3A7FF31FB72FEE9BC3CFEE0" box="[1168,1280,332,357]" class="Insecta" family="Hydraenidae" genus="Bilimneus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="160" pageNumber="161" phylum="Arthropoda" rank="genus">
<emphasis id="B958EABFE3A7FF31FB72FEE9BC3CFEE0" box="[1168,1280,332,357]" italics="true" pageId="160" pageNumber="161">Bilimneus</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>