138 lines
13 KiB
XML
138 lines
13 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.94.1161" ID-GBIF-Dataset="544588a8-23da-4a6c-9ea8-95bc6b2f987c" ID-PMC="PMC3095179" ID-Pensoft-Pub="1313-2970-94-61" ID-PubMed="21594075" ModsDocAuthor="" ModsDocDate="2011" ModsDocID="1313-2970-94-61" ModsDocOrigin="ZooKeys 94" ModsDocTitle="Rhantus fengi sp. n. from Xizang, China, and notes on Laccoporus nigritulus (Gschwendtner) (Coleoptera, Dytiscidae)" checkinTime="1451250459252" checkinUser="pensoft" docAuthor="Zhao, Shuang, Jia, Fenglong & Balke, Michael" docDate="2011" docId="F7470DC04D5CA92F074017A5A81C5912" docLanguage="en" docName="ZooKeys 94: 61-71" docOrigin="ZooKeys 94" docSource="http://dx.doi.org/10.3897/zookeys.94.1161" docTitle="Rhantus fengi Zhao, Jia & Balke, 2011, sp. n." docType="treatment" docVersion="5" lastPageNumber="64" masterDocId="FFD2FFA8FFECEC0DFFB8FFB3005ADF55" masterDocTitle="Rhantus fengi sp. n. from Xizang, China, and notes on Laccoporus nigritulus (Gschwendtner) (Coleoptera, Dytiscidae)" masterLastPageNumber="71" masterPageNumber="61" pageNumber="63" updateTime="1668169061551" 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>Rhantus fengi sp. n. from Xizang, China, and notes on Laccoporus nigritulus (Gschwendtner) (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>Zhao, Shuang</mods:namePart>
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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>Jia, Fenglong</mods:namePart>
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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>Balke, Michael</mods:namePart>
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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>2011</mods:date>
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<mods:detail type="volume">
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<mods:number>94</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>61</mods:start>
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<mods:end>71</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.94.1161</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.94.1161</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-94-61</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159365010" LSID="urn:lsid:zoobank.org:act:F0EC468E-CA7D-4A0C-B722-65A0616873FA" httpUri="http://treatment.plazi.org/id/F7470DC04D5CA92F074017A5A81C5912" lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63">
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<subSubSection pageId="2" pageNumber="63" type="nomenclature">
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<paragraph pageId="2" pageNumber="63">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:F0EC468E-CA7D-4A0C-B722-65A0616873FA" class="Insecta" family="Dytiscidae" genus="Rhantus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhantus fengi" order="Coleoptera" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="fengi">Rhantus fengi</taxonomicName>
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<taxonomicNameLabel pageId="2" pageNumber="63">sp. n.</taxonomicNameLabel>
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Figs 1-8
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="63" type="type locality">
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<paragraph pageId="2" pageNumber="63">Type locality:</paragraph>
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<paragraph pageId="2" pageNumber="63">China: Xizang, Mount Sejila, 29°37'N, 94°37'E.</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="63" type="type material">
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<paragraph pageId="2" pageNumber="63">Type material.</paragraph>
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<paragraph pageId="2" pageNumber="63">Holotype ♂ CHINA: Xizang, Mount Sejila, altitude 4200 m, 16.viii.2009, leg. Fenglong Jia [translation; labeled in Chinese] (SYSU); Paratypes (47 exs): 12 exs, same data as holotype (SYSU; 3 exs in CGC; 2 exs in ZSM); 4 exs same data as holotype but 12.viii.2009 (SYSU); 7 exs same data as holotype but 15.viii.2009 (SYSU); 4 exs same data as holotype but 17.viii.2009 (SYSU); 4 exs same data as holotype but 18.viii.2009 (SYSU); 3 exs same data as holotype but 13.-15.viii.2009 (SYSU); 2 exs Xizang, Bayi Town, Biological Study Base of SYSU, altitude 4200 m, vii.-ix.2009, leg. Shuai Jiang (SYSU); 4 exs Xizang, Mount Sejila, altitude 4100 m, vi.2009, leg. Shuang Zhao (SYSU).</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="63" type="diagnosis">
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<paragraph pageId="2" pageNumber="63">Diagnosis.</paragraph>
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<paragraph pageId="2" pageNumber="63">General appearance of beetle rather dark, epipleuron black.</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="63" type="description">
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<paragraph pageId="2" pageNumber="63">Description.</paragraph>
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<paragraph pageId="2" pageNumber="63">Body elongate-oval (Fig. 1).</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="63" type="measurements">
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<paragraph pageId="2" pageNumber="63">Measurements.</paragraph>
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<paragraph pageId="2" pageNumber="63">Body length 13.2-14.1 mm, width 6.2-6.5 mm.</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="63" type="colour">
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<paragraph pageId="2" pageNumber="63">Colour.</paragraph>
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<paragraph pageId="2" pageNumber="63">Head black, with orange triangular mark on frons and contrasting yellow clypeus (Fig. 3). Scape and pedicel yellow, antennomeres 2-5 piceous with yellow base, antennomeres 6-11 piceous. Maxillary and labial palps piceous. Pronotum yellow to yellowish brown, with a wide transverse black medial maculation that not reaching anterior and posterior margin; anterior and posterior margins with black bands rather broad medially that become lighter laterally, sometimes becoming thin laterally, lateral margin black except anterior angle, near anterior and posterior margins usually with somewhat regular black spots. Elytra yellow to yellowish brown, disc with very dense black speckles giving elytra dark appearance; lateral margin, base of elytra and near suture with yellow band, suture black; epipleura black. Ventral surface and legs black (Fig. 2), trochanters with yellowish base, pro- and mesotarsal claws somewhat dark brown.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63" type="surface sculpture">
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<paragraph pageId="2" pageNumber="63">Surface sculpture.</paragraph>
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<paragraph lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63">
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Head with irregular polygonal meshes and fine punctation; meshes rather elongated and punctures coarser behind posterior margins of eyes; along inner face of eye with series of coarse setiferous punctures. Pronotum with irregular polygonal meshes and fine punctuation; along anterior and posterior margins with rows of coarse punctures, interrupted posteromedially; lateral portion distinctly depressed, without microreticulation, with broad rim (or border) reaching anterior angle; posterior angle broadly rounded. Elytra with irregular polygonal meshes and fine microreticulation best visible laterally and posteriorly (at 50
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<normalizedToken originalValue="×">x</normalizedToken>
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); each elytron with five rows of coarse setiferous punctures being somewhat irregular except in row
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<pageBreakToken pageId="3" pageNumber="64" start="start">1</pageBreakToken>
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(sutural row) and very regular row immediately along lateral margin; elytral disc with similar meshes and fine punctures as on pronotum, mircroreticulation faint, hardly visible. Metaventrite ("metasternal wings") broad laterally. Metafemur without group of setae on posteroexternal angle. Pro- and mesotarsomeres with claws gently curved; outer protarsal claw slightly shorter than inner one (Fig. 5) and inner mesotarsal claw distinctly shorter than outer one; inner hindclaw twice as long as outer one. Abdominal ventrites 4 and 5 with a transverse rows of coarse setiferous punctures; ventrite 6 rugose with stronger punctures and setae laterally, more or less depressed and smooth posteromedially.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="male">
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<paragraph pageId="3" pageNumber="64">Male.</paragraph>
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<paragraph pageId="3" pageNumber="64">Abdominal ventrite 6 posteriorly emarginate, with fine wrinkles laterally. Pro- and mesotarsomeres 1-3 clearly expanded laterally, with four rows of stalked suction discs ventrally (Fig. 6). Number of discs per transverse row: 5 discs (on tarsomere 1) - 5 discs (second row on tarsomere 1) - 5 discs (on tarsomere 2) - 5 discs (on tarsomere 3). Parameres with dense and long setation, some setae distally trumpet-shaped (Fig. 7). Median lobe of aedeagus as in Fig. 8.</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="female">
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<paragraph pageId="3" pageNumber="64">Female.</paragraph>
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<paragraph pageId="3" pageNumber="64">Abdominal ventrite 6 simply rounded posteriorly (Fig. 4), pro- and mesotarsomeres 1-3 not expanded laterally, without stalked suction discs.</paragraph>
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<caption pageId="3" pageNumber="64">
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<paragraph pageId="3" pageNumber="64">
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Figures 1-8.
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<taxonomicName class="Insecta" family="Dytiscidae" genus="Rhantus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhantus fengi" order="Coleoptera" pageId="3" pageNumber="64" phylum="Arthropoda" rank="species" species="fengi">Rhantus fengi</taxonomicName>
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sp. n. 1 habitus, dorsal view 2 habitus, ventral view 3 head and pronotum, dorsal view 4 ventral view of 6th ventrite 5 male protarsal claws 6 ventral view of male protarsomeres 1-4 7 right paramere, inner view 8 median lobe of aedeagus, lateral view.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="remarks">
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<paragraph pageId="3" pageNumber="64">Remarks.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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The elytral sculpture of polygonal meshes and microreticulation as well as the parameres with some trumpet shaped setae, place this species in the
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<taxonomicName class="Insecta" family="Dytiscidae" genus="Rhantus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhantus suturalis" order="Coleoptera" pageId="3" pageNumber="64" phylum="Arthropoda" rank="species" species="suturalis">Rhantus suturalis</taxonomicName>
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group (
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<bibRefCitation author="Balke, M" journalOrPublisher="Koleopterologische Rundschau" pageId="7" pageNumber="68" pagination="39 - 84" title="Taxonomische Revision der pazifischen, australischen und indonesischen Arten der Gattung Rhantus Dejean, 1833 (Coleoptera: Dytiscidae)." volume="63" year="1993">Balke 1993</bibRefCitation>
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). The species is well characterized by its black epipleura; this is shared only with the Bhutanese species
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<taxonomicName class="Insecta" family="Dytiscidae" genus="Rhantus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhantus gogonensis" order="Coleoptera" pageId="3" pageNumber="64" phylum="Arthropoda" rank="species" species="gogonensis">Rhantus gogonensis</taxonomicName>
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Wewalka, 1975 (Fig. 9) which is only known from the female holotype (Bhutan: Sha Gogona; http://www.species-id.net/wiki/Rhantus_gogonensis).
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<taxonomicName class="Insecta" family="Dytiscidae" genus="Rhantus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhantus fengi" order="Coleoptera" pageId="3" pageNumber="64" phylum="Arthropoda" rank="species" species="fengi">Rhantus fengi</taxonomicName>
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differs from the latter by the darker body, pronotum not narrower than the base of elytra; pronotum distinctly impressed laterally; head, pronotum and elytra with very dense fine punctures, and black tarsi and antenna.
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</paragraph>
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<caption pageId="3" pageNumber="64">
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<paragraph pageId="3" pageNumber="64">
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Figure 9.
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<taxonomicName class="Insecta" family="Dytiscidae" genus="Rhantus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhantus gogonensis" order="Coleoptera" pageId="3" pageNumber="64" phylum="Arthropoda" rank="species" species="gogonensis">Rhantus gogonensis</taxonomicName>
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habitus.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="etymology">
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<paragraph pageId="3" pageNumber="64">Etymology.</paragraph>
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<paragraph pageId="3" pageNumber="64">
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The species is named in honour of Hsiao-Tang Feng, a pioneer in the Chinese
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<taxonomicName family="Dytiscidae" lsidName="" pageId="3" pageNumber="64" rank="family">Dytiscidae</taxonomicName>
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studies.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="64" type="habitat">
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<paragraph pageId="3" pageNumber="64">Habitat.</paragraph>
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<paragraph pageId="3" pageNumber="64">Collected from a branch of a small stream with fine sand on bottom. The water of the stream was about 10-15 cm deep and slowly flowing.</paragraph>
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</subSubSection>
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</treatment>
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</document> |