227 lines
21 KiB
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227 lines
21 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1112.85752" ID-GBIF-Dataset="5b4d920a-898b-49da-b958-8ee8a0774e8a" ID-Pensoft-Pub="1313-2970-1112-11" ID-Pensoft-UUID="59936DE5F02E5E1D8346772863977AEA" ID-ZooBank="F9F1E9A2CB9249CB8D4CFB3FAC592F96" ModsDocID="1313-2970-1112-11" checkinTime="1657650131167" checkinUser="pensoft" docAuthor="Sanchez, Enrico Gerard S., Delocado, Emmanuel D. & Freitag, Hendrik" docDate="2022" docId="1F1266B781235291B023B3190488AEC5" docLanguage="en" docName="ZooKeys 1112: 11-25" docOrigin="ZooKeys 1112" docPubDate="2022-07-12" docSource="http://dx.doi.org/10.3897/zookeys.1112.85752" docTitle="Anacaena auxilium Sanchez & Delocado & Freitag 2022, sp. nov." docType="treatment" docUuid="E3BC4B40-3228-4317-8213-CF2BE3A13748" docUuidSource="ZooBank" docVersion="2" id="59936DE5F02E5E1D8346772863977AEA" lastPageNumber="11" masterDocId="59936DE5F02E5E1D8346772863977AEA" masterDocTitle="Two new species of Anacaena Thomson, 1859 (Coleoptera, Hydrophilidae) from Northern Luzon, Philippines" masterLastPageNumber="25" masterPageNumber="11" pageNumber="11" updateTime="1657650815543" 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>Two new species of Anacaena Thomson, 1859 (Coleoptera, Hydrophilidae) from Northern Luzon, Philippines</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>Sanchez, Enrico Gerard S.</mods:namePart>
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<mods:affiliation>Ateneo Biodiversity Research Laboratory, Department of Biology, School of Science and Engineering, Ateneo de Manila University, Quezon City, 1108 Philippines</mods:affiliation>
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<mods:nameIdentifier type="email">enrico.sanchez@obf.ateneo.edu</mods:nameIdentifier>
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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>Delocado, Emmanuel D.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-7731-3476</mods:nameIdentifier>
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<mods:affiliation>Ateneo Biodiversity Research Laboratory, Department of Biology, School of Science and Engineering, Ateneo de Manila University, Quezon City, 1108 Philippines</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Freitag, Hendrik</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-1325-0979</mods:nameIdentifier>
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<mods:affiliation>Ateneo Biodiversity Research Laboratory, Department of Biology, School of Science and Engineering, Ateneo de Manila University, Quezon City, 1108 Philippines</mods:affiliation>
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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>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-07-12</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>1112</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>11</mods:start>
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<mods:end>25</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.1112.85752</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.1112.85752</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-1112-11</mods:identifier>
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<mods:identifier type="ZooBank">F9F1E9A2CB9249CB8D4CFB3FAC592F96</mods:identifier>
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<mods:identifier type="Pensoft-UUID">59936DE5F02E5E1D8346772863977AEA</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:zoobank.org:act:E3BC4B40-3228-4317-8213-CF2BE3A13748" httpUri="http://treatment.plazi.org/id/1F1266B781235291B023B3190488AEC5" lastPageNumber="11" pageId="0" pageNumber="11">
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<subSubSection pageId="0" pageNumber="11" type="nomenclature">
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<paragraph pageId="0" pageNumber="11">
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<taxonomicName LSID="http://zoobank.org/E3BC4B40-3228-4317-8213-CF2BE3A13748" authority="Sanchez & Delocado & Freitag, 2022" authorityName="Sanchez & Delocado & Freitag" authorityYear="2022" class="Insecta" family="Hydrophilidae" genus="Anacaena" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Anacaena auxilium" order="Coleoptera" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="auxilium" status="sp. nov.">Anacaena auxilium</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="11">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="description">
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<paragraph pageId="0" pageNumber="11">
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<figureCitation captionStart="Figure 1–4" captionStartId="F1" captionText="Figure 1 - 4. Habitus of new Anacaena species 1, 2 Anacaena angatbuhay sp. nov. 3, 4 Anacaena auxilium sp. nov. in (1, 3) dorsal and (2, 4) lateral views. Scale bar: 1 mm." figureDoi="10.3897/zookeys.1112.85752.figure1-4" httpUri="https://binary.pensoft.net/fig/713647" pageId="0" pageNumber="11">Figs 3-4</figureCitation>
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<figureCitation captionStart="Figure 5–6" captionStartId="F2" captionText="Figure 5 - 6. Aedeagi of 5 Anacaena angatbuhay sp. nov. holotype (GS 076) 6 Anacaena auxilium sp. nov. holotype (GS 066) in dorsal view. Scale bar: 0.25 mm." figureDoi="10.3897/zookeys.1112.85752.figure5-6" httpUri="https://binary.pensoft.net/fig/713648" pageId="0" pageNumber="11">, 6</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="type locality">
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<paragraph pageId="0" pageNumber="11">Type locality.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Philippines • Luzon, Mountain Province, Bauko; Besang mountain river, Chico River tributary; rural/agricultural area; boulders;
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<geoCoordinate degrees="17" direction="north" minutes="00" orientation="latitude" precision="15" seconds="14" value="17.00389">17°00'14"N</geoCoordinate>
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,
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<geoCoordinate degrees="120" direction="east" minutes="53" orientation="longitude" precision="15" seconds="49" value="120.89694">120°53'49"E</geoCoordinate>
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; ca. 1080 m a.s.l.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="type material">
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<paragraph pageId="0" pageNumber="11">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="11">Holotype</emphasis>
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: Philippines • ♂ (PNM: GS066), "PHIL.: Luzon, Mountain Province, \ Bauko; Besang mt. river, Chico River tributary; \ rural/agricultural area; boulders, \
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<geoCoordinate degrees="17" direction="north" minutes="00" orientation="latitude" precision="15" seconds="14" value="17.00389">17°00'14"N</geoCoordinate>
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;
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<geoCoordinate degrees="120" direction="east" minutes="53" orientation="longitude" precision="15" seconds="49" value="120.89694">120°53'49"E</geoCoordinate>
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; ca. 1080 m a.s.l.; \ Nov. 1997, leg. Mey (451)L"; GS066, specimen and terminal parts of the abdomen, including genitalia, were glued separately on the entomological card.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="11">Paratypes</emphasis>
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: Philippines • 1♂, 2♀♀ (ADMU: GS009, GS067; ZMB: GS010): same data as holotype. • 1♂, 2♀♀ (ADMU: GS034, GS035, GS038): Luzon, Ilocos Sur, Suyo Municipality, Tagudin-Cervantes-Sabangan Road, Besang Pass Area; secondary forest, mountain creek;
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<geoCoordinate degrees="16" direction="north" minutes="57" orientation="latitude" precision="15" seconds="17" value="16.954723">16°57'17"N</geoCoordinate>
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;
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<geoCoordinate degrees="120" direction="east" minutes="38" orientation="longitude" precision="15" seconds="57" value="120.64916">120°38'57"E</geoCoordinate>
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; ca. 1200 m a.s.l.; 15 Apr. 2019, leg. Freitag, Garces, Pangantihon
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<normalizedToken originalValue="“(448)L”">"(448)L"</normalizedToken>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="description">
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<paragraph pageId="0" pageNumber="11">Description.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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(Fig.
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<figureCitation captionStart="Figure 1–4" captionStartId="F1" captionText="Figure 1 - 4. Habitus of new Anacaena species 1, 2 Anacaena angatbuhay sp. nov. 3, 4 Anacaena auxilium sp. nov. in (1, 3) dorsal and (2, 4) lateral views. Scale bar: 1 mm." figureDoi="10.3897/zookeys.1112.85752.figure1-4" httpUri="https://binary.pensoft.net/fig/713647" pageId="0" pageNumber="11">3</figureCitation>
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). TL 2.8 mm (2.3-2.8 mm); TW 1.7 mm (1.4-1.7 mm); EL 1.8 mm (1.5-1.9 mm). Body form oval, moderately convex (Fig.
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<figureCitation captionStart="Figure 1–4" captionStartId="F1" captionText="Figure 1 - 4. Habitus of new Anacaena species 1, 2 Anacaena angatbuhay sp. nov. 3, 4 Anacaena auxilium sp. nov. in (1, 3) dorsal and (2, 4) lateral views. Scale bar: 1 mm." figureDoi="10.3897/zookeys.1112.85752.figure1-4" httpUri="https://binary.pensoft.net/fig/713647" pageId="0" pageNumber="11">4</figureCitation>
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); elytra about 3.4 times as long as pronotum (dorsal view), greatest width at anterior one-third.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="11">Head</emphasis>
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: Clypeus black, moderately large, straight anteriorly, with distinct antero-lateral angle. Frons black; frontoclypeal suture visible laterally. Labrum black. Puncturation regular, coarse, shallowly impressed; interstices as wide as diameter of one puncture mediad, approximately twice as wide as diameter of punctures laterad; series of densely arranged punctures along inner margin of eyes absent. Ventral punctures obsolete. Maxillary palpomeres yellow to brown; palpomeres 1-3 dark yellow; palpomere 2 moderately inflated. Palpomere 4 almost entirely infuscated, lighter towards palpomere 3, widest towards mid-length; inner margin slightly convex; outer margin distinctly convex. Mentum with fine setae on lateral margins; anterior margin with median incision. Labial palpi stout, not longer than lateral edge of mentum; palpomere 3 slightly longer than palpomere 2. Eyes not constricted anteriorly, dorsal and ventral portions of almost equal size. Antennae capitate, 9-segmented; scape parallel-sided; pedicel narrowest towards mid-length; antennomere 1 (segment 3) not distinctly elongated, broadest at base, narrows distally; antennomeres 2-4 smallest in length and width, lighter than adjacent segments, smaller than antennomere 1 (segment 3), increasing size distally; antennomere 5-7 darkest of all antennomeres; antennomeres 5 and 6 of equal length; setae along lateral margins black, long, thick, erect. Segment 7 irregularly shaped, asymmetrical; segment 8 globular. Terminal segment as long as segments 7 and 8, widest at base, subparallel on lateral margins, asymmetrical apicad with apex present on distal side; setae distributed throughout, black, long, thick, erect, but setae on apical one-third longer. Preocular patches absent.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="11">Thorax</emphasis>
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: PW/PL = 2.62; PL/PW = 0.38. Pronotum largely black, with narrow light brown or yellow lateral margins not wider than diameter of eye. Puncturation of two series: larger, coarser series evenly spaced, with interstices as wide as diameter of one puncture; smaller, fine series near postero-medial margin, irregularly scattered, one-fourth as wide as larger series. Anterior margin curving inwards on both sides from antero-lateral angle, with deepest point on 0.2 laterad and curving outwards mediad. Lateral margins slightly curved, without setae. Postero-lateral angle ca. 70-80°. Posterior margin almost straight with curvature laterad. Prosternum flat. EL/EW = 1.13; EL/PL = 4.13; EW/PW = 1.11; TL/EW = 1.69. Elytra black, with very narrow brown lateral margins and posterior area; setae absent. Shoulder regions not accentuated. Punctures coarse, strongly impressed especially near the disc, arrangement dense, spacing as wide as punctures near the disc, wider than punctures laterad; depressions or rows of coarser punctures on lateral portion absent. Mesoventrite distinctly elevated medially, with slightly pointed protuberance.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="11">Legs</emphasis>
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: Dark brown, but tarsi lighter. Spine-like setae on procoxa present. Metafemur pubescent on proximal one-fourth and near outer margin, hairline direction horizontal and recumbent. Tibia with long, thick, black, spine-like setae along lateral margins, pointing distally; terminal pair of setae at least 1.5 times as long as adjacent setae; tibiae length ratio (protibia: mesotibia: metatibia) 1: 1.3: 1.5. Metatarsus size as long as metatibia or slightly shorter. Tarsi length ratio (protarsus: mesotarsus: metatarsus) 1.0: 1.4: 2.2.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="11">Aedeagus</emphasis>
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: (Fig.
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<figureCitation captionStart="Figure 5–6" captionStartId="F2" captionText="Figure 5 - 6. Aedeagi of 5 Anacaena angatbuhay sp. nov. holotype (GS 076) 6 Anacaena auxilium sp. nov. holotype (GS 066) in dorsal view. Scale bar: 0.25 mm." figureDoi="10.3897/zookeys.1112.85752.figure5-6" httpUri="https://binary.pensoft.net/fig/713648" pageId="0" pageNumber="11">6</figureCitation>
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) Parameres apical region blunt, broadly pointing medially, slightly asymmetrical; inner margins almost straight on anterior half, widening medially on posterior half, mesal gap tapering to a narrow opening about 0.25 times as long as parameres; outer margins convex, bulging at anterior 0.5; combined width of parameres approximately the same or slightly broader as diameter of phallobase; basal portion 4 times as wide as apical part. Median lobe with apex blunt, apical portion subparallel, broadening starting in anterior 0.25, broadest before basal apophyses; base of median lobe not distinctly connected with parameres, about 2 times as wide as the width of the apex of median lobe; basal apophyses barely extending beyond the anterior portion of phallobase, narrow and subparallel. Phallobase longer than parameres, longer than wide; median reinforcement or pigmented line absent.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="differential diagnosis">
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<paragraph pageId="0" pageNumber="11">Differential diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<taxonomicName genus="A." lsidName="A. auxilium" pageId="0" pageNumber="11" rank="species" species="auxilium">
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<emphasis italics="true" pageId="0" pageNumber="11">A. auxilium</emphasis>
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</taxonomicName>
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sp. nov. (Fig.
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<figureCitation captionStart="Figure 1–4" captionStartId="F1" captionText="Figure 1 - 4. Habitus of new Anacaena species 1, 2 Anacaena angatbuhay sp. nov. 3, 4 Anacaena auxilium sp. nov. in (1, 3) dorsal and (2, 4) lateral views. Scale bar: 1 mm." figureDoi="10.3897/zookeys.1112.85752.figure1-4" httpUri="https://binary.pensoft.net/fig/713647" pageId="0" pageNumber="11">3</figureCitation>
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) is remarkably larger than most Philippine congeners. In length,
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<taxonomicName genus="A." lsidName="A. auxilium" pageId="0" pageNumber="11" rank="species" species="auxilium">
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<emphasis italics="true" pageId="0" pageNumber="11">A. auxilium</emphasis>
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</taxonomicName>
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sp. nov. (2.3-2.8 mm) overlaps with
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">
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<emphasis italics="true" pageId="0" pageNumber="11">A. cordillera</emphasis>
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</taxonomicName>
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Komarek & Freitag, 2014 (2.6-3.1 mm) and
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<taxonomicName genus="A." lsidName="A. levistriata" pageId="0" pageNumber="11" rank="species" species="levistriata">
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<emphasis italics="true" pageId="0" pageNumber="11">A. levistriata</emphasis>
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</taxonomicName>
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Komarek & Freitag, 2014 (2.1-2.7 mm). However, the new species has a smaller body width than
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">
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<emphasis italics="true" pageId="0" pageNumber="11">A. cordillera</emphasis>
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</taxonomicName>
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(1.3 mm vs.> 1.5-1.8 mm) and a longer elytral length (1.5 mm vs. <1.20-1.27 mm) than both congeners. Additionally, the new species has stout labial palpi which are not longer than the lateral edge of the mentum, while both
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<emphasis italics="true" pageId="0" pageNumber="11">
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">A. cordillera</taxonomicName>
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and
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<taxonomicName genus="A." lsidName="A. levistriata" pageId="0" pageNumber="11" rank="species" species="levistriata">A. levistriata</taxonomicName>
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</emphasis>
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have labial palpi longer than the lateral edge of the mentum. Additionally, the labial palpi of
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<taxonomicName genus="A." lsidName="A. auxilium" pageId="0" pageNumber="11" rank="species" species="auxilium">
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<emphasis italics="true" pageId="0" pageNumber="11">A. auxilium</emphasis>
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</taxonomicName>
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sp. nov. are stout, while the labial palpi of
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">
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<emphasis italics="true" pageId="0" pageNumber="11">A. cordillera</emphasis>
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</taxonomicName>
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are slender. Moreover, pre-ocular patches are absent in
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<taxonomicName genus="A." lsidName="A. auxilium" pageId="0" pageNumber="11" rank="species" species="auxilium">
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<emphasis italics="true" pageId="0" pageNumber="11">A. auxilium</emphasis>
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</taxonomicName>
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sp. nov., while these are distinct in
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">
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<emphasis italics="true" pageId="0" pageNumber="11">A. cordillera</emphasis>
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</taxonomicName>
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. Remarkably, the new species has a bi-punctuate elytra with large, coarse series and small, fine series, while
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">
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<emphasis italics="true" pageId="0" pageNumber="11">A. cordillera</emphasis>
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</taxonomicName>
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only exhibits the latter and
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<taxonomicName genus="A." lsidName="A. levistriata" pageId="0" pageNumber="11" rank="species" species="levistriata">
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<emphasis italics="true" pageId="0" pageNumber="11">A. levistriata</emphasis>
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</taxonomicName>
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only exhibits the former.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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While the parameres of the new species and
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<taxonomicName genus="A." lsidName="A. levistriata" pageId="0" pageNumber="11" rank="species" species="levistriata">
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<emphasis italics="true" pageId="0" pageNumber="11">A. levistriata</emphasis>
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</taxonomicName>
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look similar,
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<taxonomicName genus="A." lsidName="A. auxilium" pageId="0" pageNumber="11" rank="species" species="auxilium">
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<emphasis italics="true" pageId="0" pageNumber="11">A. auxilium</emphasis>
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</taxonomicName>
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sp. nov. can be differentiated in that its median lobe is distinctly longer (ca. 0.4
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<normalizedToken originalValue="×">x</normalizedToken>
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) than its parameres. Meanwhile, the apical portions of the median lobe and parameres of
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<taxonomicName genus="A." lsidName="A. cordillera" pageId="0" pageNumber="11" rank="species" species="cordillera">
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<emphasis italics="true" pageId="0" pageNumber="11">A. cordillera</emphasis>
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</taxonomicName>
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are clearly different from those of the new species.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="distribution">
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<paragraph pageId="0" pageNumber="11">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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The species is documented from two nearby localities, namely Ilocos Sur and Mountain Province (Fig.
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<figureCitation captionStart="Figure 7" captionStartId="F3" captionText="Figure 7. Map showing the updated distribution of Anacaena in Northern Luzon, including Komarek & Freitag (2014) data." figureDoi="10.3897/zookeys.1112.85752.figure7" httpUri="https://binary.pensoft.net/fig/713649" pageId="0" pageNumber="11">7</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="remarks">
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<paragraph pageId="0" pageNumber="11">Remarks.</paragraph>
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<paragraph pageId="0" pageNumber="11">Specimens from a preserved collection during 1997 fieldwork showed no pertinent phenotypic plasticity to specimens collected in a field expedition 22 years later. No external sexual dimorphism is observed.</paragraph>
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</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="11" type="etymology">
|
||
<paragraph pageId="0" pageNumber="11">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="11">
|
||
The species epithet
|
||
<normalizedToken originalValue="‘auxilium’">'auxilium'</normalizedToken>
|
||
is Latin for
|
||
<normalizedToken originalValue="‘help’">'help'</normalizedToken>
|
||
. The new species is dedicated to the Mary Help of Christians Seminary system to which the first author expresses gratitude for constant inspiration. Additionally,
|
||
<normalizedToken originalValue="‘help’">'help'</normalizedToken>
|
||
alludes to the vulnerable state of freshwater biodiversity in the tropics.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |