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<document id="5CE03317A0F9041661AF9974D5289A0A" ID-DOI="10.11646/zootaxa.3887.3.4" ID-GBIF-Dataset="f7c0564c-01cd-4deb-9385-fac07e1fdc67" ID-ISSN="1175-5326" ID-Zenodo-Dep="227166" ID-ZooBank="ABD688ED-D7F6-40F1-8821-0C339293A2A5" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460978591861" checkinUser="plazi" docAuthor="Jia, Fenglong, Aston, Paul &amp; Fikáček, Martin" docDate="2014" docId="297C0906F211FFBC0CBA84779198E5EF" docLanguage="en" docName="zt03887p376.pdf" docOrigin="Zootaxa 3887 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Coelostoma (Lachnocoelostoma) horni Regimbart 1902" docType="treatment" docVersion="9" lastPageNumber="365" masterDocId="D545717EF21AFFB00C2D87339317E41B" masterDocTitle="Review of the Chinese species of the genus Coelostoma Brullé, 1835 (Coleoptera: Hydrophilidae: Sphaeridiinae)" masterLastPageNumber="376" masterPageNumber="354" pageNumber="365" updateTime="1698559891384" updateUser="plazi">
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<mods:title id="247E7F36E3D9F82AAF7661828B201B5A">Review of the Chinese species of the genus Coelostoma Brullé, 1835 (Coleoptera: Hydrophilidae: Sphaeridiinae)</mods:title>
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<mods:namePart id="34D8A9DA3288EE62F9793EAF79BD0C93">Jia, Fenglong</mods:namePart>
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<mods:namePart id="5B7575886611D3DFF6AB3C34F960A1BA">Aston, Paul</mods:namePart>
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<mods:namePart id="190F1A982CC0235CCD5D0B7F6392145C">Fikáček, Martin</mods:namePart>
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<mods:title id="42FB11B3542554A37DBD6128A3D9E378">Zootaxa</mods:title>
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<mods:date id="F1DA9E3833E3682A4AA0BFBF89B519B6">2014</mods:date>
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<mods:number id="CD0C4873BE07C705206591AC424CB314">3887</mods:number>
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<treatment id="297C0906F211FFBC0CBA84779198E5EF" ID-DOI="http://doi.org/10.5281/zenodo.6140248" ID-GBIF-Taxon="119594450" ID-Zenodo-Dep="6140248" LSID="urn:lsid:plazi:treatment:297C0906F211FFBC0CBA84779198E5EF" httpUri="http://treatment.plazi.org/id/297C0906F211FFBC0CBA84779198E5EF" lastPageId="12" lastPageNumber="365" pageId="11" pageNumber="365">
<subSubSection id="E9CFEB9BF211FFBB0CBA847793EEE764" pageId="11" pageNumber="365" type="nomenclature">
<paragraph id="A16AB810F211FFBB0CBA8477904FE745" blockId="11.[151,856,836,895]" box="[151,856,836,862]" pageId="11" pageNumber="365">
<heading id="FA220F7CF211FFBB0CBA8477904FE745" bold="true" box="[151,856,836,862]" fontSize="11" level="1" pageId="11" pageNumber="365" reason="1">
<taxonomicName id="66D5C393F211FFBB0CBA8477904FE745" ID-CoL="WTHR" authority="Regimbart, 1902" authorityName="Regimbart" authorityYear="1902" box="[151,856,836,862]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni" subGenus="Lachnocoelostoma">
<emphasis id="93A16402F211FFBB0CBA8477904FE745" bold="true" box="[151,856,836,862]" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CBA84779232E745" bold="true" box="[151,293,836,862]" italics="true" pageId="11" pageNumber="365">Coelostoma</emphasis>
(
<emphasis id="93A16402F211FFBB0D188477910EE745" bold="true" box="[309,537,836,862]" italics="true" pageId="11" pageNumber="365">Lachnocoelostoma</emphasis>
)
<emphasis id="93A16402F211FFBB0E0684779179E745" bold="true" box="[555,622,836,862]" italics="true" pageId="11" pageNumber="365">horni</emphasis>
(
<bibRefCitation id="C544C5E1F211FFBB0E5184779047E745" author="Regimbart" box="[636,848,836,862]" pageId="11" pageNumber="365" refString="Regimbart, M. (1902) Voyage du Dr. W. Horn a Ceylan. Coleopteres aquatiques. Annales de la Societe Entomologique de France, 71, 468 - 475." type="journal article" year="1902">Régimbart, 1902</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="A16AB810F211FFBB0CBA845593EEE764" blockId="11.[151,856,836,895]" box="[151,249,870,895]" pageId="11" pageNumber="365">
(
<figureCitation id="39EEA495F211FFBB0CB2845593E6E764" box="[159,241,870,895]" captionStart="FIGURES 24 31" captionStartId="19.[151,264,1953,1976]" captionTargetBox="[223,1356,215,1921]" captionTargetId="figure@19.[210,1377,193,1932]" captionTargetPageId="19" captionText="FIGURES 24 31. Aedeagus of Chinese Coelostoma and related species. 24: C. coomani, 25: C. gentilii sp. nov., 26: C. phallicum, 27: C. huangi sp. nov., 28: C. martensi (paratype from Nepal), 29: C. wui, 30: C. vagum, 31: C. horni from southern Yunnan: Xishuangbanna)." httpUri="https://zenodo.org/record/227170/files/figure.png" pageId="11" pageNumber="365">Fig. 31</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="E9CFEB9BF211FFBB0CBA849D900AE03B" pageId="11" pageNumber="365" type="reference_group">
<paragraph id="A16AB810F211FFBB0CBA849D9128E7DF" blockId="11.[151,807,942,1056]" box="[151,575,942,965]" pageId="11" pageNumber="365">
<treatmentCitationGroup id="81C59F3EF211FFBB0CBA849D9128E7DF" box="[151,575,942,965]" pageId="11" pageNumber="365">
<taxonomicName id="66D5C393F211FFBB0CBA849D912CE7DF" ID-CoL="8XKPM" authority="Horni Regimbart, 1902: 474" authorityName="Horni Regimbart" authorityPageNumber="474" authorityYear="1902" box="[151,571,942,965]" class="Insecta" family="Hydrophilidae" genus="Cyclonotum" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="genus">
<emphasis id="93A16402F211FFBB0CBA849D9244E7DE" box="[151,339,942,965]" italics="true" pageId="11" pageNumber="365">Cyclonotum Horni</emphasis>
<treatmentCitation id="20749E01F211FFBB0D77849D912CE7DF" author="Regimbart" box="[346,571,942,964]" page="474" pageId="11" pageNumber="365" year="1902">
<bibRefCitation id="C544C5E1F211FFBB0D77849D911EE7DF" author="Regimbart" box="[346,521,942,964]" pageId="11" pageNumber="365" refString="Regimbart, M. (1902) Voyage du Dr. W. Horn a Ceylan. Coleopteres aquatiques. Annales de la Societe Entomologique de France, 71, 468 - 475." type="journal article" year="1902">Régimbart, 1902</bibRefCitation>
: 474
</treatmentCitation>
</taxonomicName>
.
</treatmentCitationGroup>
</paragraph>
<paragraph id="A16AB810F211FFBB0CBA84FE918DE7F8" blockId="11.[151,807,942,1056]" box="[151,666,973,995]" pageId="11" pageNumber="365">
<treatmentCitationGroup id="81C59F3EF211FFBB0CBA84FE918DE7F8" box="[151,666,973,995]" pageId="11" pageNumber="365">
<taxonomicName id="66D5C393F211FFBB0CBA84FE9297E7F8" ID-CoL="WTG2" box="[151,384,973,995]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="orbiculare">
<emphasis id="93A16402F211FFBB0CBA84FE9297E7F8" box="[151,384,973,995]" italics="true" pageId="11" pageNumber="365">Coelostoma orbiculare</emphasis>
</taxonomicName>
f.
<taxonomicName id="66D5C393F211FFBB0DB684FD92C0E7F8" ID-CoL="WTHR" box="[411,471,974,995]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="373" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F211FFBB0DB684FD92C0E7F8" box="[411,471,974,995]" italics="true" pageId="11" pageNumber="365">Horni</emphasis>
</taxonomicName>
:
<treatmentCitation id="20749E01F211FFBB0DC884FE9182E7F8" author="Knisch" box="[485,661,973,995]" page="77" pageId="11" pageNumber="365" year="1921">
<bibRefCitation id="C544C5E1F211FFBB0DC884FE9178E7F8" author="Knisch" box="[485,623,973,995]" pageId="11" pageNumber="365" refString="Knisch, A. (1921 a) Die exotischen Hydrophiliden des Deutschen Entomologischen Museums (Col.) Archiv fur Naturgeschichte, 8, 55 - 88. [85 A (1919)]" type="journal article" year="1921">Knisch, 1921</bibRefCitation>
: 77
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
<paragraph id="A16AB810F211FFBB0CBA84DF900AE03B" blockId="11.[151,807,942,1056]" pageId="11" pageNumber="365">
<treatmentCitationGroup id="81C59F3EF211FFBB0CBA84DF900AE03B" pageId="11" pageNumber="365">
<taxonomicName id="66D5C393F211FFBB0CBA84DF9245E019" ID-CoL="8VWD6" authority="Horni" authorityName="Horni" box="[151,338,1004,1026]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="genus">
<emphasis id="93A16402F211FFBB0CBA84DF9245E019" box="[151,338,1004,1026]" italics="true" pageId="11" pageNumber="365">Coelostoma Horni</emphasis>
</taxonomicName>
:
<treatmentCitation id="20749E01F211FFBB0D4D84DF910FE019" author="Knisch" box="[352,536,1004,1026]" page="111" pageId="11" pageNumber="365" year="1924">
<bibRefCitation id="C544C5E1F211FFBB0D4D84DF92FDE019" author="Knisch" box="[352,490,1004,1026]" pageId="11" pageNumber="365" refString="Knisch, A. (1924 a) Hydrophilidae. In: Junk, W. &amp; Schenkling, S. (Eds.), Coleopterorum Catalogus. Vol. 14. part 79. W. Junk, Berlin, pp. 1 - 306." type="journal article" year="1924">Knisch, 1924</bibRefCitation>
: 111
</treatmentCitation>
(specific rank confirmed).
<taxonomicName id="66D5C393F211FFBB0CBA8339900DE03B" ID-CoL="WTHR" authority="Orchymont, 1940: 157" authorityName="Orchymont" authorityPageNumber="157" authorityYear="1940" box="[151,794,1034,1056]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni" subGenus="Lachnocoelostoma">
<emphasis id="93A16402F211FFBB0CBA83399134E03B" box="[151,547,1034,1056]" italics="true" pageId="11" pageNumber="365">Coelostoma (Lachnocoelostoma) horni</emphasis>
:
<treatmentCitation id="20749E01F211FFBB0E1C8339900DE03B" author="Orchymont" box="[561,794,1034,1056]" page="157" pageId="11" pageNumber="365" year="1940">
<bibRefCitation id="C544C5E1F211FFBB0E1C833991F0E03B" author="Orchymont" box="[561,743,1034,1056]" pageId="11" pageNumber="365" refString="Orchymont, A. dʼ (1940) Contribution a l'etude des Palpicornia XIV. Bulletin et Annales de la Societe Entomologique de Belgique, 80, 157 - 197." type="journal article" year="1940">Orchymont, 1940</bibRefCitation>
: 157
</treatmentCitation>
</taxonomicName>
.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="E9CFEB9BF211FFBB0CBA837E976EE0C9" pageId="11" pageNumber="365" type="materials_examined">
<paragraph id="A16AB810F211FFBB0CBA837E92FAE07D" blockId="11.[151,1437,1101,2026]" box="[151,493,1101,1126]" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CBA837E9250E07D" bold="true" box="[151,327,1101,1126]" pageId="11" pageNumber="365">
<typeStatus id="7E6E06B2F211FFBB0CBA837E93C5E07D" box="[151,210,1101,1126]" pageId="11" pageNumber="365">Type</typeStatus>
material:
</emphasis>
not examined.
</paragraph>
<paragraph id="A16AB810F211FFBB0CEA8342976EE0C9" blockId="11.[151,1437,1101,2026]" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CEA834291BDE091" bold="true" box="[199,682,1137,1162]" pageId="11" pageNumber="365">
Material examined.
<collectingCountry id="D9C2F880F211FFBB0D948342910CE091" box="[441,539,1137,1162]" name="China" pageId="11" pageNumber="365">CHINA</collectingCountry>
: YUNNAN:
</emphasis>
<specimenCount id="B7D37399F211FFBB0E9C834191EAE091" box="[689,765,1137,1162]" pageId="11" pageNumber="365" type="male">1 male</specimenCount>
(
<collectionCode id="C7C420D5F211FFBB0F2383419048E091" box="[782,863,1138,1162]" pageId="11" pageNumber="365">ASHC</collectionCode>
): Xishuangbanna,
<quantity id="662D15F5F211FFBB080283419760E091" box="[1071,1143,1137,1162]" metricMagnitude="4" metricUnit="m" metricValue="2.0" pageId="11" pageNumber="365" unit="km" value="20.0">20 km</quantity>
NW Jinghong, Man Dian vicinity, at light, 22°08ʹN 100°40ʹE,
<quantity id="662D15F5F211FFBB0E1483A59193E0B6" box="[569,644,1174,1198]" metricMagnitude="2" metricUnit="m" metricValue="7.4" pageId="11" pageNumber="365" unit="m" value="740.0">740 m</quantity>
,
<date id="D56B9ED0F211FFBB0EBC83A69015E0B5" box="[657,770,1173,1198]" pageId="11" pageNumber="365" value="2008-05-26">26.v.2008</date>
, A. Weigel leg.
<emphasis id="93A16402F211FFBB0F9183A69734E0B5" bold="true" box="[956,1059,1173,1198]" pageId="11" pageNumber="365">
<collectingCountry id="D9C2F880F211FFBB0F9183A6970AE0B5" box="[956,1053,1173,1198]" name="Nepal" pageId="11" pageNumber="365">NEPAL</collectingCountry>
:
</emphasis>
<specimenCount id="B7D37399F211FFBB080183A5976FE0B5" box="[1068,1144,1173,1198]" pageId="11" pageNumber="365" type="male">1 male</specimenCount>
(
<collectionCode id="C7C420D5F211FFBB08A783A597F7E0B5" box="[1162,1248,1174,1198]" httpUri="http://grbio.org/cool/hj12-2xm7" name="National Museum Prague" pageId="11" pageNumber="365">NMPC</collectionCode>
): prov. Narayani Saurana, bank of Rapti River,
<quantity id="662D15F5F211FFBB0DC783899124E0CA" box="[490,563,1210,1234]" metricMagnitude="2" metricUnit="m" metricValue="1.8" pageId="11" pageNumber="365" unit="m" value="180.0">180 m</quantity>
, 27°34ʹ80ʺN 84°29ʹ49ʺE,
<date id="D56B9ED0F211FFBB0F75838A90C7E0C9" box="[856,976,1209,1234]" pageId="11" pageNumber="365" value="2000-04-18">18.iv.2000</date>
, A. Weigel lgt.
</paragraph>
</subSubSection>
<subSubSection id="E9CFEB9BF211FFBB0CEA83EE9776E1D6" pageId="11" pageNumber="365" type="diagnosis">
<paragraph id="A16AB810F211FFBB0CEA83EE9776E1D6" blockId="11.[151,1437,1101,2026]" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CEA83EE9256E0ED" bold="true" box="[199,321,1245,1270]" pageId="11" pageNumber="365">Diagnosis.</emphasis>
Body size 4.5-5.0 mm. Prosternum finely carinate medially, with distinct dentiform process anteromedially. Head, pronotum and elytra with similar punctation; elytra with lateral portion not coarser punctate than dorsaly, without traces of series of punctures laterally. Mesofemora densely pubescent except at extreme apex. First abdominal ventrite with recognizable median carina basally; fifth ventrite emarginate and with a row of stout setae apically.
<emphasis id="93A16402F211FFBB0D10825E92BAE19D" bold="true" box="[317,429,1389,1414]" italics="true" pageId="11" pageNumber="365">Aedeagus</emphasis>
(
<figureCitation id="39EEA495F211FFBB0D93825E9104E19D" box="[446,531,1389,1414]" captionStart="FIGURES 24 31" captionStartId="19.[151,264,1953,1976]" captionTargetBox="[223,1356,215,1921]" captionTargetId="figure@19.[210,1377,193,1932]" captionTargetPageId="19" captionText="FIGURES 24 31. Aedeagus of Chinese Coelostoma and related species. 24: C. coomani, 25: C. gentilii sp. nov., 26: C. phallicum, 27: C. huangi sp. nov., 28: C. martensi (paratype from Nepal), 29: C. wui, 30: C. vagum, 31: C. horni from southern Yunnan: Xishuangbanna)." httpUri="https://zenodo.org/record/227170/files/figure.png" pageId="11" pageNumber="365">Fig. 31</figureCitation>
).
<quantity id="662D15F5F211FFBB0E04825E9197E19E" box="[553,640,1389,1414]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="11" pageNumber="365" unit="mm" value="0.6">0.6 mm</quantity>
long, widest at middle, Median lobe rather broad, with trilobed apex; gonopore situated apically; parameres much longer than median lobe, rather narrower than median lobe, strongly bent outwards medially, more or less curved on outer face subapically, apices truncate.
</paragraph>
</subSubSection>
<subSubSection id="E9CFEB9BF211FFBC0CEA82EA9198E5EF" lastPageId="12" lastPageNumber="366" pageId="11" pageNumber="365" type="biology_ecology">
<paragraph id="A16AB810F211FFBB0CEA82EA92B3E1E9" blockId="11.[151,1437,1101,2026]" box="[199,420,1497,1522]" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CEA82EA9230E1E9" bold="true" box="[199,295,1497,1522]" pageId="11" pageNumber="365">Biology.</emphasis>
Unknown.
</paragraph>
<paragraph id="A16AB810F211FFBB0CEA82CE90E4E3DD" blockId="11.[151,1437,1101,2026]" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CEA82CE92DDE20D" bold="true" box="[199,458,1533,1558]" pageId="11" pageNumber="365">
Occurrence in
<collectingCountry id="D9C2F880F211FFBB0D5482CE92D3E20D" box="[377,452,1533,1558]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
.
</emphasis>
The occurrence of this species in
<collectingCountry id="D9C2F880F211FFBB0F6382CE9086E20D" box="[846,913,1533,1558]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
was originally reported by
<bibRefCitation id="C544C5E1F211FFBB08E782CE968BE20D" author="Orchymont" box="[1226,1436,1533,1558]" pageId="11" pageNumber="365" refString="Orchymont, A. dʼ (1925) Contribution a l'etude des Hydrophilides III. Bulletin et Annales de la Societe Entomologique de Belgique, 65, 261 - 295." type="journal article" year="1925">Orchymont (1925)</bibRefCitation>
(
<collectingCountry id="D9C2F880F211FFBB0CB38111923FE221" box="[158,296,1570,1594]" name="Hong Kong" pageId="11" pageNumber="365">Hong Kong</collectingCountry>
). However,
<bibRefCitation id="C544C5E1F211FFBB0D8381129168E221" author="Orchymont" box="[430,639,1569,1594]" pageId="11" pageNumber="365" refString="Orchymont, A. dʼ (1935) Aquatic Insects of China. Article XX. Catalogue of Chinese Palpicornia. (Order Coleoptera). Peking Natural History Bulletin, 9, 185 - 225." type="journal article" year="1935">Orchymont (1935)</bibRefCitation>
did not list the species in his catalogue and noted, that “the Hong-kong specimens, of which three are in my cabinet, and alluded to in one of those notes, do not belong to
<taxonomicName id="66D5C393F211FFBB092581769653E246" box="[1288,1348,1605,1629]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F211FFBB092581769653E246" box="[1288,1348,1605,1629]" italics="true" pageId="11" pageNumber="365">horni</emphasis>
</taxonomicName>
. But as these three individuals are females an exact identification cannot be carried on without the males”. Wu (1937) followed
<bibRefCitation id="C544C5E1F211FFBB0D2981BE92CEE2BD" author="Orchymont" box="[260,473,1677,1702]" pageId="11" pageNumber="365" refString="Orchymont, A. dʼ (1935) Aquatic Insects of China. Article XX. Catalogue of Chinese Palpicornia. (Order Coleoptera). Peking Natural History Bulletin, 9, 185 - 225." type="journal article" year="1935">Orchymont (1935)</bibRefCitation>
, and did not list this species for
<collectingCountry id="D9C2F880F211FFBB0F7E81BE908DE2BD" box="[851,922,1677,1702]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
. In contrast,
<bibRefCitation id="C544C5E1F211FFBB080281BE961AE2BD" author="Mouchamps" box="[1071,1293,1677,1702]" pageId="11" pageNumber="365" refString="Mouchamps, R. (1958) Notes sur quelques Coelostoma (Brulle) (Coleopteres Hydrophilidae) principalement africains (12 me note). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, 34 (41), 1 - 36." type="journal article" year="1958">Mouchamps (1958)</bibRefCitation>
and
<bibRefCitation id="C544C5E1F211FFBB096581BD93F6E2D1" author="Hansen" pageId="11" pageNumber="365" refString="Hansen, M. (1999) World Catalogue of Insects 2: Hydrophiloidea (s. str.) (Coleoptera). Apollo Books, Stenstrup, 416 pp." type="book" year="1999">Hansen (1999)</bibRefCitation>
listed
<taxonomicName id="66D5C393F211FFBB0D018181929EE2D2" box="[300,393,1713,1737]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F211FFBB0D018181929EE2D2" box="[300,393,1713,1737]" italics="true" pageId="11" pageNumber="365">C. horni</emphasis>
</taxonomicName>
from
<collectingCountry id="D9C2F880F211FFBB0DE181819144E2D1" box="[460,595,1714,1738]" name="Hong Kong" pageId="11" pageNumber="365">Hong Kong</collectingCountry>
, likely based on the original record by
<bibRefCitation id="C544C5E1F211FFBB0828818297CDE2D1" author="Orchymont" box="[1029,1242,1713,1738]" pageId="11" pageNumber="365" refString="Orchymont, A. dʼ (1925) Contribution a l'etude des Hydrophilides III. Bulletin et Annales de la Societe Entomologique de Belgique, 65, 261 - 295." type="journal article" year="1925">Orchymont (1925)</bibRefCitation>
. After examining extensive material of the genus
<taxonomicName id="66D5C393F211FFBB0E2081E69184E2F6" box="[525,659,1749,1773]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="genus">
<emphasis id="93A16402F211FFBB0E2081E69184E2F6" box="[525,659,1749,1773]" italics="true" pageId="11" pageNumber="365">Coelostoma</emphasis>
</taxonomicName>
from southern
<collectingCountry id="D9C2F880F211FFBB0F6781E6909AE2F5" box="[842,909,1749,1774]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
including
<collectingCountry id="D9C2F880F211FFBB082181E59781E2F5" box="[1036,1174,1750,1774]" name="Hong Kong" pageId="11" pageNumber="365">Hong Kong</collectingCountry>
, we failed to find any representative of this species except the Yunnan one listed above. The locality of Xishuangbanna is situated in extreme southwest of
<collectingCountry id="D9C2F880F211FFBB0DB9802E92C0E32D" box="[404,471,1821,1846]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
in lowlands close to the borders of
<collectingCountry id="D9C2F880F211FFBB0F5A802D90BAE32E" box="[887,941,1822,1845]" name="Laos" pageId="11" pageNumber="365">Laos</collectingCountry>
and
<collectingCountry id="D9C2F880F211FFBB0FC5802D9742E32D" box="[1000,1109,1822,1846]" name="Myanmar" pageId="11" pageNumber="365">Myanmar</collectingCountry>
and already hosts the beetle fauna typical for true Southeast Asia (J. Hájek, pers. comm.). We thus suppose that
<emphasis id="93A16402F211FFBB085D80729629E342" box="[1136,1342,1857,1881]" italics="true" pageId="11" pageNumber="365">
Coelsotoma
<taxonomicName id="66D5C393F211FFBB092C80729629E342" box="[1281,1342,1857,1881]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni">horni</taxonomicName>
</emphasis>
reaches
<collectingCountry id="D9C2F880F211FFBB0CBA805693CDE365" box="[151,218,1893,1918]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
only in this extreme southwest and does not occur in the more eastern parts of South
<collectingCountry id="D9C2F880F211FFBB08FA80569609E365" box="[1239,1310,1893,1918]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
. We hence consider the specimens from
<collectingCountry id="D9C2F880F211FFBB0DCE80B99170E3B9" box="[483,615,1930,1954]" name="Hong Kong" pageId="11" pageNumber="365">Hong Kong</collectingCountry>
reported by
<bibRefCitation id="C544C5E1F211FFBB0ED580BA90DDE3B9" author="Orchymont" box="[760,970,1929,1954]" pageId="11" pageNumber="365" refString="Orchymont, A. dʼ (1925) Contribution a l'etude des Hydrophilides III. Bulletin et Annales de la Societe Entomologique de Belgique, 65, 261 - 295." type="journal article" year="1925">Orchymont (1925)</bibRefCitation>
as
<taxonomicName id="66D5C393F211FFBB0FDF80B99747E3BA" box="[1010,1104,1929,1953]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F211FFBB0FDF80B99747E3BA" box="[1010,1104,1929,1953]" italics="true" pageId="11" pageNumber="365">C. horni</emphasis>
</taxonomicName>
as misidentified and actually belonging to another species.
<emphasis id="93A16402F211FFBB0DC9809E90E4E3DD" bold="true" box="[484,1011,1965,1990]" pageId="11" pageNumber="365">
First reliable record of
<taxonomicName id="66D5C393F211FFBB0ED7809E904DE3DD" box="[762,858,1965,1990]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F211FFBB0ED7809E904DE3DD" bold="true" box="[762,858,1965,1990]" italics="true" pageId="11" pageNumber="365">C. horni</emphasis>
</taxonomicName>
from
<collectingCountry id="D9C2F880F211FFBB0F8E809E90F9E3DD" box="[931,1006,1965,1990]" name="China" pageId="11" pageNumber="365">China</collectingCountry>
.
</emphasis>
</paragraph>
<paragraph id="A16AB810F211FFBC0CEA80E29198E5EF" blockId="11.[151,1437,1101,2026]" lastBlockId="12.[151,1436,151,501]" lastPageId="12" lastPageNumber="366" pageId="11" pageNumber="365">
<emphasis id="93A16402F211FFBB0CEA80E2929BE3F1" bold="true" box="[199,396,2001,2026]" pageId="11" pageNumber="365">Taxonomic note.</emphasis>
<taxonomicName id="66D5C393F211FFBB0DB980E29148E3F2" box="[404,607,2001,2025]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="11" pageNumber="365" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F211FFBB0DB980E29148E3F2" box="[404,607,2001,2025]" italics="true" pageId="11" pageNumber="365">Coelostoma horni</emphasis>
</taxonomicName>
was originally described from
<collectingCountry id="D9C2F880F211FFBB0FEF80E29724E3F1" box="[962,1075,2001,2026]" name="Sri Lanka" pageId="11" pageNumber="365">Sri Lanka</collectingCountry>
, and is nowadays considered as widely distributed both in Oriental Region (known from Malay Archipelago, continental southeast Asia and Indian subcontinent:
<bibRefCitation id="C544C5E1F216FFBC0D18878E92DEE4CF" author="Hansen" box="[309,457,188,212]" pageId="12" pageNumber="366" refString="Hansen, M. (1999) World Catalogue of Insects 2: Hydrophiloidea (s. str.) (Coleoptera). Apollo Books, Stenstrup, 416 pp." type="book" year="1999">Hansen 1999</bibRefCitation>
) and in Afrotropical Region (recorded from Arabian Peninsula, Mascarene Islands and
<collectingCountry id="D9C2F880F216FFBC0CBA87EC923CE4E3" box="[151,299,223,248]" name="South Africa" pageId="12" pageNumber="366">South Africa</collectingCountry>
:
<bibRefCitation id="C544C5E1F216FFBC0D1887D392DAE4E3" author="Hansen" box="[309,461,224,248]" pageId="12" pageNumber="366" refString="Hansen, M. (1999) World Catalogue of Insects 2: Hydrophiloidea (s. str.) (Coleoptera). Apollo Books, Stenstrup, 416 pp." type="book" year="1999">Hansen 1999</bibRefCitation>
). The genitalia of specimens from the Arabian Peninsula (
<collectingCountry id="D9C2F880F216FFBC087587D397BBE4E3" box="[1112,1196,224,248]" name="Yemen" pageId="12" pageNumber="366">Yemen</collectingCountry>
: deposited in NMPC, aedeagus figured by Fikáček
<emphasis id="93A16402F216FFBC0DCD8636910EE507" box="[480,537,260,284]" italics="true" pageId="12" pageNumber="366">et al.</emphasis>
2010) are indeed similar to the specimens of
<taxonomicName id="66D5C393F216FFBC08368637976FE507" box="[1051,1144,260,284]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="12" pageNumber="366" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F216FFBC08368637976FE507" box="[1051,1144,260,284]" italics="true" pageId="12" pageNumber="366">C. horni</emphasis>
</taxonomicName>
from the Oriental Region (
<figureCitation id="39EEA495F216FFBC0CB2861493E3E55B" box="[159,244,295,320]" captionStart="FIGURES 24 31" captionStartId="19.[151,264,1953,1976]" captionTargetBox="[223,1356,215,1921]" captionTargetId="figure@19.[210,1377,193,1932]" captionTargetPageId="19" captionText="FIGURES 24 31. Aedeagus of Chinese Coelostoma and related species. 24: C. coomani, 25: C. gentilii sp. nov., 26: C. phallicum, 27: C. huangi sp. nov., 28: C. martensi (paratype from Nepal), 29: C. wui, 30: C. vagum, 31: C. horni from southern Yunnan: Xishuangbanna)." httpUri="https://zenodo.org/record/227170/files/figure.png" pageId="12" pageNumber="366">Fig. 31</figureCitation>
illustrates the Chinese specimen, the examined Nepalese specimen has identical genitalia) in general shape. However, the aedeagus of the Arabian specimens is relatively larger and narrower (smaller and relatively wider in Oriental specimens), and its median lobe is only indistinctly widened apically (very distinctly widened in Oriental specimens). Based on these differences, we cannot exclude the possibility that the Arabian specimen are in fact not conspecific with true
<taxonomicName id="66D5C393F216FFBC0DC9868B9155E5CB" box="[484,578,440,464]" class="Insecta" family="Hydrophilidae" genus="Coelostoma" kingdom="Animalia" order="Coleoptera" pageId="12" pageNumber="366" phylum="Arthropoda" rank="species" species="horni">
<emphasis id="93A16402F216FFBC0DC9868B9155E5CB" box="[484,578,440,464]" italics="true" pageId="12" pageNumber="366">C. horni</emphasis>
</taxonomicName>
and represent an undescribed species. The identity of the African specimens remains unknown as none was studied by us.
</paragraph>
</subSubSection>
</treatment>
</document>