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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.214.3437" ID-GBIF-Dataset="28934e03-d227-471e-ad9f-85e0d8cfae46" ID-PMC="PMC3426878" ID-Pensoft-Pub="1313-2970-214-13" ID-PubMed="22936864" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-214-13" ModsDocOrigin="ZooKeys 214" ModsDocTitle="An aberrant species of Nipponocercyon from Sichuan, China (Coleoptera, Hydrophilidae, Sphaeridiinae)" checkinTime="1451248810979" checkinUser="pensoft" docAuthor="Fikacek, Martin, Ryndevich, Sergey &amp; Jia, Fenglong" docDate="2012" docId="17430C4C07678335241508A84A6D5306" docLanguage="en" docName="ZooKeys 214: 13-27" docOrigin="ZooKeys 214" docSource="http://dx.doi.org/10.3897/zookeys.214.3437" docTitle="Nipponocercyon sichuanicus Ryndevich 2005, comb. n." docType="treatment" docVersion="3" lastPageNumber="21" masterDocId="CB07FFD6FF8CFFEE3C605D587C6B7A49" masterDocTitle="An aberrant species of Nipponocercyon from Sichuan, China (Coleoptera, Hydrophilidae, Sphaeridiinae)" masterLastPageNumber="27" masterPageNumber="13" pageNumber="17" updateTime="1668154341217" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>An aberrant species of Nipponocercyon from Sichuan, China (Coleoptera, Hydrophilidae, Sphaeridiinae)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Fikacek, Martin</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ryndevich, Sergey</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Jia, Fenglong</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2012</mods:date>
<mods:detail type="volume">
<mods:number>214</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>13</mods:start>
<mods:end>27</mods:end>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.214.3437</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.214.3437</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-214-13</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="152036624" LSID="urn:lsid:plazi:treatment:17430C4C07678335241508A84A6D5306" httpUri="http://treatment.plazi.org/id/17430C4C07678335241508A84A6D5306" lastPageId="8" lastPageNumber="21" pageId="4" pageNumber="17">
<subSubSection pageId="4" pageNumber="17" type="nomenclature">
<paragraph pageId="4" pageNumber="17">
<taxonomicName LSID="http://species-id.net/wiki/Nipponocercyon_sichuanicus" authority="Ryndevich, 2005" authorityName="Ryndevich" authorityYear="2005" class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="4" pageNumber="17" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus (Ryndevich, 2005)</taxonomicName>
<taxonomicNameLabel pageId="4" pageNumber="17">comb. n.</taxonomicNameLabel>
Figs 1
<normalizedToken originalValue="–47–1219–2123–">-47-1219-2123-</normalizedToken>
24
</paragraph>
</subSubSection>
<subSubSection pageId="4" pageNumber="17" type="reference_group">
<paragraph pageId="4" pageNumber="17">
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum sichuanicum" order="Coleoptera" pageId="4" pageNumber="17" phylum="Arthropoda" rank="species" species="sichuanicum">Cryptopleurum sichuanicum</taxonomicName>
Ryndevich, 2005: 244
</paragraph>
<paragraph pageId="4" pageNumber="17">
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum sichuanicum" order="Coleoptera" pageId="4" pageNumber="17" phylum="Arthropoda" rank="species" species="sichuanicum">Cryptopleurum sichuanicum</taxonomicName>
:
<bibRefCitation author="Short, AEZ" journalOrPublisher="Koleopterologische Rundschau" pageId="11" pageNumber="24" pagination="315 - 359" title="World catalogue of the Hydrophiloidea - additions and corrections, 1 (1999 - 2005)." volume="76" year="2006">Short and Hebauer (2006</bibRefCitation>
: 348, catalogue).
</paragraph>
</subSubSection>
<subSubSection pageId="4" pageNumber="17" type="type material examined">
<paragraph pageId="4" pageNumber="17">Type material examined.</paragraph>
<paragraph pageId="4" pageNumber="17">Paratype: 1 female (CSR): 'CH, S Sichuan, near / Bijishan Village, left / tr. of Lianhegou River / 2500-3200 m, 19.6.2000 / Belousov, Kabak, Davidian // Paratype / Cryptopleurum / sichuanicum / Ryndevich S. K. // Coll. / SKR // Cryptopleurum / sp.n. / det HEBAUER'.</paragraph>
</subSubSection>
<subSubSection pageId="4" pageNumber="17" type="additional material examined">
<paragraph pageId="4" pageNumber="17">Additional material examined.</paragraph>
<paragraph pageId="4" pageNumber="17">
CHINA: Sichuan: 2 males, 1 spec. (CSR, NMPC): 2.1 km N of Dengsheng, SE of Balanguan Pass, elev. 3455 m,
<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.884167">30°53'3&quot;N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="15" value="102.97305">102°58'23&quot;E</geoCoordinate>
, 29.viii.2004, lgt. Belousov &amp; Kabak; 1 spec. (NHMW): 20 km N
<normalizedToken originalValue="Sabdȇ">Sabdȇ</normalizedToken>
, elev. 3300 m,
<geoCoordinate direction="north" orientation="latitude" precision="925" value="29.583334">29°35'N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="925" value="102.38333">102°23'E</geoCoordinate>
, 14.vii.1998, lgt. A. Smetana (C82); 1 spec. (CSR): S of Musu village, elev. 2850 m,
<geoCoordinate direction="north" orientation="latitude" precision="15" value="31.948055">31°56'53&quot;N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="15" value="103.25305">103°15'11&quot;E</geoCoordinate>
, 19.viii.2007, lgt. Belousov &amp; Kabak; 1 male (NMPC): N Sichuan, SW of Baima, elev. 2980-3040 m [ca.
<geoCoordinate direction="north" orientation="latitude" precision="925" value="27.916666">27°55'N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="925" value="101.933334">101°56'E</geoCoordinate>
], 23.vi.2006, lgt. I. Kabak; 5 spec. (CSR, NMPC, SYSU, KSEM): SW of Jiabi, elev. 3240 m,
<geoCoordinate direction="north" orientation="latitude" precision="15" value="31.51111">31°30'40&quot;N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="15" value="102.728615">102°43'43&quot;E</geoCoordinate>
, 8-13.viii.2007, lgt. Belousov &amp; Kabak; 1 male, 3 spec. (NHMW, NMPC): Ganzi, Daxue Shan, Mugecuo, ca. 26 km NW Kangding, elev. 3200-3400 m,
<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.11">30°06'36&quot;N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="15" value="101.520004">101°31'12&quot;E</geoCoordinate>
, 21.v.1997, lgt. A.
<normalizedToken originalValue="Pütz">Puetz</normalizedToken>
.
</paragraph>
</subSubSection>
<subSubSection lastPageId="8" lastPageNumber="21" pageId="4" pageNumber="17" type="redescription">
<paragraph pageId="4" pageNumber="17">Redescription.</paragraph>
<paragraph pageId="4" pageNumber="17">Body widely oval, widest in anterior third of elytra. Body length 2.2-2.9 mm, body width 1.4-1.7 mm.</paragraph>
<paragraph pageId="5" pageNumber="18">
<pageBreakToken pageId="5" pageNumber="18" start="start">General</pageBreakToken>
coloration of dorsal surface dark brown, anterior and anterolateral margins of clypeus and lateral portions of frontoclypeal suture pale reddish, anterior margin of pronotum widely reddish, each elytron slightly paler in humeral area and at elytral apex. Ventral surface dark brown, mentum, mouthparts and posterior portions of temporae reddish brown. Maxillary palpi, antennae and legs pale reddish brown.
</paragraph>
<paragraph pageId="5" pageNumber="18">Head. Clypeus widely rounded, constricted above antennal bases, with very distinct marginal bead. Dorsal surface of clypeus and frons with strong scale-like microsculpture obscuring the punctation, sparsely arranged punctures not apparent among microsculpture, only evident according to long thin setae arising from punctures. Frontoclypeal suture apparent as a non-sculptured stripe directing mesad, strongly bent posteriad submesally. Mentum with sparsely arranged fine setiferous punctures medially and posteriorly, interstices with strong scale-like microsculpture. Antennal club without distinct groups of peg-like sensilla dorsally or ventrally. Maxilla of male without sucking disc ventrally.</paragraph>
<paragraph lastPageId="6" lastPageNumber="19" pageId="5" pageNumber="18">
Prothorax. Pronotum with sparsely arranged fine setiferous punctures, larger punctures along posterior margin absent. Whole dorsal surface with mesh-like microsculpture, microsculpture strong along anterior and posterior margins and on lateral portions of pronotum, obsolete on pronotal disc; pronotal disc with
<pageBreakToken pageId="6" pageNumber="19" start="start">irregular</pageBreakToken>
longitudinal striae. Lateral portions of pronotum slightly deflexed (and hence seen in ventral view). Prosternum with well defined median plate 2.0
<normalizedToken originalValue="×">x</normalizedToken>
wider than long, bearing strong rugose sculpture, indistinctly carinate mesally. Anterolateral corners of prosternum (at contact with hypomeron) with small but distinct tooth. Antennal grooves large, but not quite reaching lateral margin of hypomeron. Profemur with a rather shallow sculptured depression on a large portion of ventral surface. Protibia angulate distally.
</paragraph>
<paragraph pageId="7" pageNumber="20">
<pageBreakToken pageId="7" pageNumber="20" start="start">Mesothorax</pageBreakToken>
. Scutellar shield with sparse fine punctation, without microsculpture. Elytra with 10 punctural series, all series deeply impressed, lateral striae deeper than median ones; serial punctures minute and rather inconspicuous; elytral intervals highly convex, bearing sparsely arranged fine setiferous punctation, interstices with strong microsculpture consisting of small bumps; lateral portions of elytra deflexed laterally (hence, visible in ventral view); epipleuron present only on elytral base, reduced to extremelly narrow stripe behind level of mesocoxae. Mesoventrite with pentagonal posteromedian elevation, the elevation 1.3
<normalizedToken originalValue="×">x</normalizedToken>
wider than long, with rugose setiferous sculpture.
</paragraph>
<paragraph lastPageId="8" lastPageNumber="21" pageId="7" pageNumber="20">
Metathorax. Anteromedian process with very weakly developed short longitudinal ridges, in many individuals completely obscured by microsculpture; median portion of metaventrite slightly elevated bearing densely arranged coarse setiferous punctures separated by 0.5
<normalizedToken originalValue="–1.2×">-1.2x</normalizedToken>
puncture diameter; lateral portions of metaventrite with extremelly large setiferous punctures; whole surface of metaventrite except its posterom
<pageBreakToken pageId="8" pageNumber="21" start="start">edian</pageBreakToken>
portion with mesh-like microsculpture on interstices, microsculpture stronger laterally than medially. Hind wings well developed.
</paragraph>
<paragraph pageId="8" pageNumber="21">Abdomen. All abdominal ventrites with strong scale-like microsculpture, punctation of ventrite 1 consisting of extremelly large setiferous punctures similar to that on lateral portions of metaventrite; punctation of ventrites 2-5 sparse and very fine, nearly completely obscured by microsculpture.</paragraph>
<paragraph pageId="8" pageNumber="21">
Male genitalia. Parameres slender, 1.8
<normalizedToken originalValue="×">x</normalizedToken>
longer than phallobase. Median lobe robust, very wide and parallel-sided in basal 0.35, slighly and continually narrowing apicad in apical 0.65, apex widely rounded; gonopore situated in basal 0.4 of median lobe. Stenite 9 with slightly asymmetrical median projection.
</paragraph>
<caption pageId="8" pageNumber="21">
<paragraph pageId="8" pageNumber="21">
Figures 1-2. General habitus of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
. 1 dorsal view 2 lateral view.
</paragraph>
</caption>
<caption pageId="8" pageNumber="21">
<paragraph pageId="8" pageNumber="21">
Figures 3-6. Morphological details of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Nipponocercyon</taxonomicName>
species. 3-4
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
:3 ventral view 4 male genitalia; 5-6
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
: 5 ventral view 6 male genitalia [the drawing is based on that by
<bibRefCitation author="Hoshina, H" journalOrPublisher="Acta Entomologica Musei Nationalis Pragae" pageId="11" pageNumber="24" pagination="117 - 130" title="Morphological study and taxonomic revision of the genus Nipponocercyon (Coleoptera: Hydrophilidae: Sphaeridiinae)." volume="50" year="2010">
Hoshina and
<normalizedToken originalValue="Fikáček">Fikacek</normalizedToken>
(2010)
</bibRefCitation>
in combination with the photo sent to us by H. Hoshina, we did not examine any male specimen for this study]). Parts of male genitalia: a tegmen, b median lobe, c sternite 9. Abbreviations: aes3 metanepisternum, ang antennal groove, epi epipleuron, grp grooves for reception of procoxae, mtr anteromesal ridge of metaventrite, pfd profemoral depression.
</paragraph>
</caption>
<caption pageId="8" pageNumber="21">
<paragraph pageId="8" pageNumber="21">
Figures 7-18. Morphological details of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
and its comparison with
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
and
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum minutum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="minutum">Cryptopleurum minutum</taxonomicName>
. 7-12
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
:7 head in dorsal view 8 pronotum 9 superficial microsculpture of elytral intervals 10 mentum 11 antennal groove 12 median portion of prosternum. 13-15
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
:13 mentum 14 antennal groove 15 median portion of prosternum. 16-18
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum minutum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="minutum">Cryptopleurum minutum</taxonomicName>
:16 mentum 17 antennal groove 18 median portion of prosternum. Abbreviations: ang antennal groove, hyp hypomeron.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="8" pageNumber="21" type="differential diagnosis">
<paragraph pageId="8" pageNumber="21">Differential diagnosis.</paragraph>
<paragraph pageId="8" pageNumber="21">
See the identification key above for characters distinguishing
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
from
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
.
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
may be confused with some species of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Cryptopleurum</taxonomicName>
,
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Pachysternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pachysternum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Pachysternum</taxonomicName>
or
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cyrtonion" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cyrtonion" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Cyrtonion</taxonomicName>
(the latter not occurring in Asia, however)which are also characterized by large antennal grooves and strongly sculptured dorsal surface.
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
may be easily distinguished from them by the combination of following characters: (1) metaventrite without femoral lines (femoral lines present in
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Cryptopleurum</taxonomicName>
,
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Pachysternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pachysternum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Pachysternum</taxonomicName>
and
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cyrtonion" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cyrtonion" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Cyrtonion</taxonomicName>
, see e.g. Fig. 22, feml); (2) metanepisternum wide throughout (Fig. 20) (reduced anteriorly and widening posteriad in the above genera as well as in all other genera of the
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Megasternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megasternum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Megasternum</taxonomicName>
group characterized by large antennal grooves, see e.g. Fig. 22, aes3); (3) gonopore situated in basal portion of the median lobe (Fig. 4; this character distinguishes both species of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Nipponocercyon</taxonomicName>
from all other
<taxonomicName lsidName="" pageId="8" pageNumber="21" rank="tribe" tribe="Megasternini">Megasternini</taxonomicName>
); (4) mesoventral plate only slightly wider than long, without acute angles (Fig. 19) (mesoventral plate large and distinctly transverse in
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Cryptopleurum</taxonomicName>
, see e.g. Fig. 22); (5) anterolateral corners of mentum not sharply angulate (Fig. 10) (sharply angulate in
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Cryptopleurum</taxonomicName>
, as in Fig. 16).
</paragraph>
<caption pageId="8" pageNumber="21">
<paragraph pageId="8" pageNumber="21">
Figures 19-22. Ventral morphology of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
and its comparison with
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum ferrugineum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="ferrugineum">Cryptopleurum ferrugineum</taxonomicName>
. 19-21
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
:19 mesoventral plate 20 meso- and metaventrite 21 abdominal ventrites. 22 meso- and metaventrite of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum ferrugineum" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="ferrugineum">Cryptopleurum ferrugineum</taxonomicName>
. Abbreviations: aes3 metanepisternum, epi epipleuron, feml femoral line, grp groove for reception of procoxae, msv mesoventral plate, mtr anteromedian ridge of metaventrite.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="8" pageNumber="21" type="biology">
<paragraph pageId="8" pageNumber="21">Biology.</paragraph>
<paragraph pageId="8" pageNumber="21">
No details on the biology are known. The terrestrial habits of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
(Hoshina &amp;
<normalizedToken originalValue="Fikáček">Fikacek</normalizedToken>
2010) as well as the vast majority of the megasternine taxa suggest that
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
is a terrestrial species.
</paragraph>
</subSubSection>
<subSubSection pageId="8" pageNumber="21" type="distribution">
<paragraph pageId="8" pageNumber="21">Distribution.</paragraph>
<paragraph pageId="8" pageNumber="21">The species occurs in the mountains of the Sichuan province in South China, at altitudes between 2500-3500 m a.s.l. (Fig. 24).</paragraph>
<caption pageId="8" pageNumber="21">
<paragraph pageId="8" pageNumber="21">
Figures 23-24. Maps. 23 generaldistribution of the genus
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="genus">Nipponocercyon</taxonomicName>
(data for
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
adopted from
<bibRefCitation author="Hoshina, H" journalOrPublisher="Acta Entomologica Musei Nationalis Pragae" pageId="11" pageNumber="24" pagination="117 - 130" title="Morphological study and taxonomic revision of the genus Nipponocercyon (Coleoptera: Hydrophilidae: Sphaeridiinae)." volume="50" year="2010">
Hoshina and
<normalizedToken originalValue="Fikáček">Fikacek</normalizedToken>
2010
</bibRefCitation>
) 24 distribution of
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
in the Sichuan Province. Symbols: red dot
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon sichuanicus" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="sichuanicus">Nipponocercyon sichuanicus</taxonomicName>
, blue dot
<taxonomicName class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon shibatai" order="Coleoptera" pageId="8" pageNumber="21" phylum="Arthropoda" rank="species" species="shibatai">Nipponocercyon shibatai</taxonomicName>
.
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>
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