treatments-xml/data/03/E3/87/03E387B6FD12FFF8FF5C538D3AA2FE45.xml
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<document id="D2744CFE4FCD3B32C885C50345857398" ID-CLB-Dataset="8921" ID-DOI="10.11646/zootaxa.4820.2.11" ID-GBIF-Dataset="31966ce9-2658-4f41-8b84-7299c6280cfa" ID-ISSN="1175-5326" ID-Zenodo-Dep="4397560" ID-ZooBank="F8C130D8-6AB9-4E3B-8986-DE539A4001EA" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1609208093062" checkinUser="plazi" docAuthor="Benetti, Cesar J., Gustafson, Grey T., Hamada, Neusa &amp; Short, Andrew Edward Z." docDate="2020" docId="03E387B6FD12FFF8FF5C538D3AA2FE45" docLanguage="en" docName="zootaxa.4820.2.11.pdf" docOrigin="Zootaxa 4820 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Hydaticus aequalis Benetti &amp; Gustafson &amp; Hamada &amp; Short 2020, sp. n." docType="treatment" docVersion="8" lastPageNumber="381" masterDocId="FFDAFFCEFD13FFFAFFCB52733912FFB0" masterDocTitle="Hydaticus aequalis sp. n. and a new record of H. devexus Trémouilles, 1996 from Brazil (Coleoptera, Dytiscidae, Hydaticini)" masterLastPageNumber="384" masterPageNumber="379" pageNumber="380" updateTime="1698848255764" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="CE93EB92FD84533B671D92A2FCCDACC6">Hydaticus aequalis sp. n. and a new record of H. devexus Trémouilles, 1996 from Brazil (Coleoptera, Dytiscidae, Hydaticini)</mods:title>
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<mods:namePart id="79C5919567CFA8F08597BE3DC080CD47">Benetti, Cesar J.</mods:namePart>
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<mods:namePart id="DEF788CB1B48DB6E01992DD38B8FDB3F">Gustafson, Grey T.</mods:namePart>
<mods:nameIdentifier id="BABEC2D1A7BC30AE9C43D9BBDF3121CC" type="ORCID">0000-0002-2014-7128</mods:nameIdentifier>
<mods:affiliation id="0199D55B87474D3E34A200318702F225">Department of Ecology &amp; Evolutionary Biology &amp; Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA. gtgustafson @ gmail. com; https: // orcid. org / 0000 - 0002 - 2014 - 7128</mods:affiliation>
<mods:nameIdentifier id="84EC598B3D408229A413E637FD500B0B" type="email">gtgustafson@gmail.com</mods:nameIdentifier>
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<mods:namePart id="97EA82B5349EA2553A8F6DC5CD65F6AB">Hamada, Neusa</mods:namePart>
<mods:affiliation id="8F14CED76C27EBA8A931FF9251125247">Coordenação de Biodiversidade, Programa de Pós-Graduação em Entomologia (PPGEnt), Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, CEP 69067 - 375, Manaus, AM, Brazil.</mods:affiliation>
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<mods:namePart id="CFA176C79887FF6CEDC1F4919E156725">Short, Andrew Edward Z.</mods:namePart>
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<mods:affiliation id="FFD6C86133380572CDDFA0C93585FD78">Department of Ecology &amp; Evolutionary Biology &amp; Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA. aezshort @ ku. edu; https: // orcid. org / 0000 - 0002 - 7467 - 7116</mods:affiliation>
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<mods:date id="5BFFABFE680FA3977A8E38C060DB23B5">2020</mods:date>
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<taxonomicName id="4C4A4D23FD12FFFBFF5C538D386CFDA9" ID-CoL="8LZKD" authority="Benetti &amp; Gustafson &amp; Hamada &amp; Short, 2020" authorityName="Benetti &amp; Gustafson &amp; Hamada &amp; Short" authorityYear="2020" box="[151,382,510,537]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="1" pageNumber="380" phylum="Arthropoda" rank="species" species="aequalis" status="sp. nov.">
<emphasis id="B93EEAB2FD12FFFBFF5C538D386CFDA9" bold="true" box="[151,382,510,537]" italics="true" pageId="1" pageNumber="380">Hydaticus aequalis</emphasis>
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<taxonomicNameLabel id="A20D57C9FD12FFFBFE4E538C38D5FDA9" box="[389,455,511,537]" pageId="1" pageNumber="380" rank="species">sp. n.</taxonomicNameLabel>
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(
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,
<figureCitation id="13712A25FD12FFFBFEC450503821FD8D" box="[271,307,547,573]" captionStart="FIGURE 2" captionStartId="4.[151,250,937,961]" captionTargetBox="[194,1375,173,904]" captionTargetId="figure-26@4.[158,1430,163,913]" captionTargetPageId="4" captionText="FIGURE 2. Median lobe of aedeagus in dorsal (left) and lateral (right) view of Hydaticus spp. (A) H. aequalis sp. n., (B) H. devexus. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4397567" httpUri="https://zenodo.org/record/4397567/files/figure.png" pageId="1" pageNumber="380">2A</figureCitation>
,
<figureCitation id="13712A25FD12FFFBFEF450503859FD8D" box="[319,331,547,573]" captionStart="FIGURE 3" captionStartId="4.[151,250,1946,1970]" captionTargetBox="[193,1394,1021,1922]" captionTargetId="figure-61@4.[193,1394,1021,1922]" captionTargetPageId="4" captionText="FIGURE 3. Habitat of Hydaticus spp.: (A) Habitat of H. aequalis sp. n., collecting event BR18-0712-01B; (B) Habitat of H. aequalis sp. n., collecting event BR18-0712-01A; (C) Habitat of H. devexus, near the summit of Pico do Barbardo; red arrow indicates location of pool; (D) Vegetated pool in which H. devexus was found, collecting event BR18-0226-01A." figureDoi="http://doi.org/10.5281/zenodo.4397569" httpUri="https://zenodo.org/record/4397569/files/figure.png" pageId="1" pageNumber="380">3</figureCitation>
AB, 4)
</paragraph>
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<paragraph id="8BF536A0FD12FFFBFF5C50183C83FD36" blockId="1.[151,1437,618,1977]" box="[151,1425,618,646]" pageId="1" pageNumber="380">
<materialsCitation id="3B223CFDFD12FFFBFF5C50183C9FFD36" ID-GBIF-Occurrence="3015252302" box="[151,1421,618,646]" country="Brazil" county="Tapaua County" latitude="-5.503" location="Amazonas State" longLatPrecision="78" longitude="-62.124" pageId="1" pageNumber="380" specimenCount="1" typeStatus="holotype">
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<typeStatus id="54F18802FD12FFFBFF5C501839C0FD35" box="[151,210,619,645]" pageId="1" pageNumber="380">Type</typeStatus>
locality.
<collectingCountry id="F35D7630FD12FFFBFEF7501938BEFD34" box="[316,428,618,644]" name="Brazil" pageId="1" pageNumber="380">BRAZIL</collectingCountry>
:
</emphasis>
<location id="8E95607BFD12FFFBFE7D50183B62FD35" LSID="urn:lsid:plazi:treatment:03E387B6FD12FFF8FF5C538D3AA2FE45:8E95607BFD12FFFBFE7D50183B62FD35" box="[438,624,619,645]" country="Brazil" county="Tapaua County" latitude="-5.503" longLatPrecision="78" longitude="-62.124" name="Amazonas State" pageId="1" pageNumber="380">Amazonas State</location>
:
<collectingCounty id="62944E2CFD12FFFBFDB150183A37FD35" box="[634,805,619,645]" pageId="1" pageNumber="380">Tapauá County</collectingCounty>
, c.
<locationDeviation id="9A472F82FD12FFFBFC8150183D36FD35" box="[842,1060,619,645]" location="Humaita" pageId="1" pageNumber="380">
<quantity id="4CB29B45FD12FFFBFC8150183A8DFD35" box="[842,927,619,645]" metricMagnitude="5" metricUnit="m" metricValue="2.4" pageId="1" pageNumber="380" unit="km" value="240.0">240 km</quantity>
N Humaita
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, on BR-319 (
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,
<geoCoordinate id="EE7E5067FD12FFFBFAD350183C97FD36" box="[1304,1413,619,646]" degrees="62.124" direction="west" orientation="longitude" pageId="1" pageNumber="380" precision="55" value="-62.124">62.124W</geoCoordinate>
)
</materialsCitation>
.
</paragraph>
<paragraph id="8BF536A0FD12FFFBFF0C50FC3C30FCA5" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C50FC3864FD18" bold="true" box="[199,374,654,681]" pageId="1" pageNumber="380">Type material.</emphasis>
<materialsCitation id="3B223CFDFD12FFFBFEB650FC3C8BFD41" ID-GBIF-Occurrence="3015252301" collectingDate="2018-07-11" collectionCode="INPA" country="Brazil" county="Humaita" elevation="54" location="Amazonas" municipality="Tapaua" pageId="1" pageNumber="380" specimenCode="BR18-0712, 01" specimenCount="1" specimenCount-male="1" typeStatus="holotype">
<emphasis id="B93EEAB2FD12FFFBFEB650FC38F8FD19" bold="true" box="[381,490,655,681]" pageId="1" pageNumber="380">
<typeStatus id="54F18802FD12FFFBFEB650FC38F8FD19" box="[381,490,655,681]" pageId="1" pageNumber="380" type="holotype">Holotype</typeStatus>
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(
<specimenCount id="9D4CFD29FD12FFFBFE3750FC3B06FD19" box="[508,532,655,681]" pageId="1" pageNumber="380" type="male"></specimenCount>
):
<emphasis id="B93EEAB2FD12FFFBFDE250FD3BBEFD18" bold="true" box="[553,684,654,680]" pageId="1" pageNumber="380">
<collectingCountry id="F35D7630FD12FFFBFDFC50FD3BB5FD18" box="[567,679,654,680]" name="Brazil" pageId="1" pageNumber="380">BRAZIL</collectingCountry>
:
</emphasis>
<location id="8E95607BFD12FFFBFD7F50FC3A3DFD19" LSID="urn:lsid:plazi:treatment:03E387B6FD12FFF8FF5C538D3AA2FE45:8E95607BFD12FFFBFD7F50FC3A3DFD19" box="[692,815,655,681]" country="Brazil" county="Humaita" municipality="Tapaua" name="Amazonas" pageId="1" pageNumber="380">Amazonas</location>
:
<collectingMunicipality id="6B91ACDAFD12FFFBFCF250FD3A9CFD19" box="[825,910,654,681]" pageId="1" pageNumber="380">Tapauá</collectingMunicipality>
/-5.50298°, -62.12392°;
<quantity id="4CB29B45FD12FFFBFB5750FD3DC7FD19" box="[1180,1237,654,681]" metricMagnitude="1" metricUnit="m" metricValue="5.4" pageId="1" pageNumber="380" unit="m" value="54.0">
<elevation id="0067D193FD12FFFBFB5750FD3DC7FD19" box="[1180,1237,654,681]" metricMagnitude="1" metricUnit="m" metricValue="5.4" pageId="1" pageNumber="380" unit="m" value="54.0">54 m</elevation>
</quantity>
/
<collectingCounty id="62944E2CFD12FFFBFB2D50FC3C54FD19" box="[1254,1350,655,681]" pageId="1" pageNumber="380">Humaita</collectingCounty>
(c.
<quantity id="4CB29B45FD12FFFBFAB950FC39A9FD7D" metricMagnitude="5" metricUnit="m" metricValue="2.4" pageId="1" pageNumber="380" unit="km" value="240.0">240 km</quantity>
N) on BR-319/
<date id="FFF41060FD12FFFBFEB950C038E1FD7D" box="[370,499,691,717]" pageId="1" pageNumber="380" value="2018-07-11">
<collectingDate id="EFB0E988FD12FFFBFEB950C038E1FD7D" box="[370,499,691,717]" pageId="1" pageNumber="380" value="2018-07-11">11.vii.2018</collectingDate>
</date>
; leg.
<collectorName id="26BF5376FD12FFFBFDE450C03B7DFD7D" box="[559,623,691,717]" pageId="1" pageNumber="380">Short</collectorName>
; forest/detrital pool;
<specimenCode id="DBEC9EDBFD12FFFBFC9150C03AF0FD7D" box="[858,994,691,717]" collectionCode="BR" country="Brazil" name="Embrapa Agrobiology Diazothrophic Microbial Culture Collection" pageId="1" pageNumber="380">BR18-0712</specimenCode>
-
<specimenCode id="DBEC9EDBFD12FFFBFC2250C03D16FD7D" box="[1001,1028,691,717]" collectionCode="BR" country="Brazil" name="Embrapa Agrobiology Diazothrophic Microbial Culture Collection" pageId="1" pageNumber="380">01</specimenCode>
A”, “
<typeStatus id="54F18802FD12FFFBFBF150C03DC3FD7D" box="[1082,1233,691,717]" pageId="1" pageNumber="380" type="holotype">HOLOTYPE</typeStatus>
/
<taxonomicName id="4C4A4D23FD12FFFBFB1250C03C58FD7D" authorityName="Leach" authorityYear="1817" box="[1241,1354,691,717]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="1" pageNumber="380" phylum="Arthropoda" rank="genus">Hydaticus</taxonomicName>
/aequalis [red label]” (
<collectionCode id="ED5BAE65FD12FFFBFE8E50A4389AFD41" box="[325,392,727,753]" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="1" pageNumber="380">INPA</collectionCode>
)
<collectorName id="26BF5376FD12FFFBFE5E50A438C9FD41" box="[405,475,727,753]" pageId="1" pageNumber="380">Notes</collectorName>
:
<collectorName id="26BF5376FD12FFFBFE2850A43B1DFD41" box="[483,527,727,753]" pageId="1" pageNumber="380">The</collectorName>
<typeStatus id="54F18802FD12FFFBFDDE50A43B65FD41" box="[533,631,727,753]" pageId="1" pageNumber="380" type="holotype">holotype</typeStatus>
lacks all tarsomeres on right hind-leg and all tarsomeres on left fore-leg
</materialsCitation>
.
<materialsCitation id="3B223CFDFD12FFFBFF5C50883A04FCA5" ID-GBIF-Occurrence="3015252303" box="[151,790,763,789]" collectionCode="BR" country="Brazil" pageId="1" pageNumber="380" specimenCount="1" specimenCount-female="1" typeStatus="paratype">
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<typeStatus id="54F18802FD12FFFBFF5C50883816FCA5" box="[151,260,763,789]" pageId="1" pageNumber="380" type="paratype">Paratype</typeStatus>
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(
<specimenCount id="9D4CFD29FD12FFFBFEDC50883838FCA5" box="[279,298,763,789]" pageId="1" pageNumber="380" type="female"></specimenCount>
): same labels, except margin of stream,
<collectionCode id="ED5BAE65FD12FFFBFD2550883A04FCA5" box="[750,790,763,789]" country="Brazil" name="Embrapa Agrobiology Diazothrophic Microbial Culture Collection" pageId="1" pageNumber="380">BR</collectionCode>
</materialsCitation>
<materialsCitation id="3B223CFDFD12FFFBFCDD50883C0CFCA5" ID-GBIF-Occurrence="3015252304" box="[790,1310,763,789]" collectionCode="SEMC" country="Brazil" pageId="1" pageNumber="380" specimenCode="01" specimenCount="1" typeStatus="paratype">
18-0712-
<specimenCode id="DBEC9EDBFD12FFFBFCB750883A85FCA5" box="[892,919,763,789]" collectionCode="BR" country="Brazil" name="Embrapa Agrobiology Diazothrophic Microbial Culture Collection" pageId="1" pageNumber="380">01</specimenCode>
B and blue
<typeStatus id="54F18802FD12FFFBFBDD50883D64FCA5" box="[1046,1142,763,789]" pageId="1" pageNumber="380" type="paratype">paratype</typeStatus>
label (
<collectionCode id="ED5BAE65FD12FFFBFB0850883C07FCA5" box="[1219,1301,763,789]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34264" name="University of Kansas - Biodiversity Institute" pageId="1" pageNumber="380" type="Museum">SEMC</collectionCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C350652BFD12FFFBFF0C516D3D12FC15" pageId="1" pageNumber="380" type="diagnosis">
<paragraph id="8BF536A0FD12FFFBFF0C516D3D12FC15" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C516D3850FC88" bold="true" box="[199,322,798,824]" pageId="1" pageNumber="380">Diagnosis.</emphasis>
Body elongate, oval. Size large (
<quantity id="4CB29B45FD12FFFBFD7F516C3A16FC89" box="[692,772,799,825]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="380" unit="mm" value="10.0">10 mm</quantity>
in length). General coloration in dorsal view evenly orangish brown; head and pronotum a little lighter; elytron evenly orangish brown; thoracic ventrite and abdomen evenly orangish brown. Median lobe of aedeagus in lateral view not dorsally recurved, with straight ventral margin, basal 1/3 dorsally bulged, apical 1/6 weakly expanded with narrowly rounded apex.
</paragraph>
</subSubSection>
<subSubSection id="C350652BFD12FFFBFF0C51DD3C0DF8C1" pageId="1" pageNumber="380" type="description">
<paragraph id="8BF536A0FD12FFFBFF0C51DD3D0DFC5D" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C51DD384BFC78" bold="true" box="[199,345,942,968]" pageId="1" pageNumber="380">Description.</emphasis>
<emphasis id="B93EEAB2FD12FFFBFE9451DC38D2FC79" box="[351,448,943,969]" italics="true" pageId="1" pageNumber="380">Habitus.</emphasis>
Body elongate, oval, slightly attenuated posteriorly, dorsoventrally depressed; subparallel medially, widest just behind middle, lateral outline continuous in dorsal view.
</paragraph>
<paragraph id="8BF536A0FD12FFFBFF0C51843A4AFBA1" blockId="1.[151,1437,618,1977]" box="[199,856,1014,1041]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C5184387BFBA0" box="[199,361,1015,1040]" italics="true" pageId="1" pageNumber="380">Measurements</emphasis>
. TL =
<quantity id="4CB29B45FD12FFFBFE7D51843B1AFBA1" box="[438,520,1015,1041]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="1" pageNumber="380" unit="mm" value="10.0">10 mm</quantity>
; TL-H =
<quantity id="4CB29B45FD12FFFBFDBB51843BA6FBA1" box="[624,692,1015,1041]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" pageId="1" pageNumber="380" unit="mm" value="9.0">9 mm</quantity>
; MW =
<quantity id="4CB29B45FD12FFFBFCDB51853A46FBA1" box="[784,852,1014,1041]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="1" pageNumber="380" unit="mm" value="5.0">5 mm</quantity>
.
</paragraph>
<paragraph id="8BF536A0FD12FFFBFF0C566839F7FB59" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C56683850FB85" box="[199,322,1051,1077]" italics="true" pageId="1" pageNumber="380">Coloration</emphasis>
. General coloration in dorsal view evenly orangish brown; head and pronotum a little paler. Clypeus brown with two black spots near anterior margin; labrum yellowish brown with anterior margin darker; antenna dark yellow; palpi yellow, paler than antennae. Pronotum slightly darker on posterior margin; elytron and epipleuron evenly orangish brown. Metacoxal plates and abdomen evenly orangish brown; prosternum and metaventrite dark yellow; prosternal process with apex darker, brown. Legs dark yellow, mesotarsus, mesotibia and hind-legs little darker.
</paragraph>
<paragraph id="8BF536A0FD12FFFBFF0C56803C6EF899" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C568038C1FABC" box="[199,467,1267,1293]" italics="true" pageId="1" pageNumber="380">Sculpture and structure</emphasis>
. Head with very fine punctation, coarser in basal margin; reticulation not visible at 100x. Pronotum with posterolateral angle slightly produced and rounded, posterior margin sinuate; lateral margins not margined; with very fine reticulation composed of rounded cells and fine punctuation; more impressed punctures with scattered setae on posterior margin; with some wrinkles near posterior and lateral margins. Elytron with very fine reticulation of elongate cells corresponding to about 1/3 of distance between punctures; with one row of punctures slightly impressed near suture bearing short setae; some scattered setae on lateroapical margins. Ventral surface generally smooth, without punctures and reticulation. Prosternum with large setae on lateral margins. Prosternal process convex, laterally entirely margined, with apex spatulate; with reticulation of rounded cells. Metaventral wings narrow, with anterolateral margin straight. Male protarsomeres IIII modified in a transversely oval palette with ventral adhesive setae; mesotarsomeres IIII enlarged with ventral adhesive setae. Female pro and mesotarsomeres IIII not enlarged. Protibia with stout spines on apicodorsal surface. Profemur with a row of spines on anterior surface, with fine, scattered spines on posterior margin and one row of spines basally, near trochanter. Metatarsus with reticulation composed of elongate, transversal cells in dorsal and ventral view; metatarsal claws unequal, anterior claw shorter than posterior one. Metatibia with reticulation of elongate, transversal cells; with few large punctures and spines in posterior surface; metatibial spurs acuminate apically. Metafemur with fine reticulation composed of transversal cells. Abdomen: ventrites 35 with a one rounded shallow depression at each side.
</paragraph>
<paragraph id="8BF536A0FD12FFFBFF0C55403C0DF8C1" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C55403863F8FD" box="[199,369,1843,1869]" italics="true" pageId="1" pageNumber="380">Male genitalia.</emphasis>
Median lobe in dorsal view narrow; in lateral view not dorsally recurved, ventral margin straight, dorsal margin bulged in basal 1/3, weakly expanded in apical 1/6 with narrowly rounded trilobate apex.
</paragraph>
</subSubSection>
<subSubSection id="C350652BFD12FFFBFF0C55083BB1F809" pageId="1" pageNumber="380" type="etymology">
<paragraph id="8BF536A0FD12FFFBFF0C55083BB1F809" blockId="1.[151,1437,618,1977]" pageId="1" pageNumber="380">
<emphasis id="B93EEAB2FD12FFFBFF0C5508385CF825" bold="true" box="[199,334,1915,1941]" pageId="1" pageNumber="380">Etymology.</emphasis>
From the Latin
<emphasis id="B93EEAB2FD12FFFBFDC155083B7EF825" box="[522,620,1915,1941]" italics="true" pageId="1" pageNumber="380">Aequalis</emphasis>
, meaning uniform, due to the more or less uniform coloration of dorsal and ventral surfaces. The name is an adjective.
</paragraph>
</subSubSection>
<subSubSection id="C350652BFD11FFF8FF0C52E53A7EFED5" pageId="2" pageNumber="381" type="distribution">
<paragraph id="8BF536A0FD11FFF8FF0C52E53B85FF65" blockId="2.[151,1437,150,501]" pageId="2" pageNumber="381">
<emphasis id="B93EEAB2FD11FFF8FF0C52E53873FF00" bold="true" box="[199,353,150,176]" pageId="2" pageNumber="381">Distribution.</emphasis>
This species is only known from the
<typeStatus id="54F18802FD11FFF8FCCE52E43A27FF01" box="[773,821,151,177]" pageId="2" pageNumber="381">type</typeStatus>
locality, in Amazonas State,
<collectingCountry id="F35D7630FD11FFF8FBB752E43DD2FF01" box="[1148,1216,151,177]" name="Brazil" pageId="2" pageNumber="381">Brazil</collectingCountry>
(
<figureCitation id="13712A25FD11FFF8FB0452E43C07FF01" box="[1231,1301,151,177]" captionStart="FIGURE 4" captionStartId="5.[151,250,1143,1167]" captionTargetBox="[151,1435,181,1119]" captionTargetId="figure-16@5.[151,1435,181,1119]" captionTargetPageId="5" captionText="FIGURE 4. Known distribution of Hydaticus aequalis sp. n. and H. devexus." figureDoi="http://doi.org/10.5281/zenodo.4397571" httpUri="https://zenodo.org/record/4397571/files/figure.png" pageId="2" pageNumber="381">Fig. 4</figureCitation>
). The site is midway along the Manaus-Humaita highway.
</paragraph>
<paragraph id="8BF536A0FD11FFF8FF0C52AD3A7EFED5" blockId="2.[151,1437,150,501]" pageId="2" pageNumber="381">
<emphasis id="B93EEAB2FD11FFF8FF0C52AD3838FF48" bold="true" box="[199,298,222,248]" pageId="2" pageNumber="381">Habitat.</emphasis>
The specimens were collected in the riparian corridor of a small forested stream. The
<typeStatus id="54F18802FD11FFF8FACD52AC3C7AFF49" box="[1286,1384,223,249]" pageId="2" pageNumber="381" type="holotype">holotype</typeStatus>
was taken from the margin of the stream itself, which was still flowing but largely reduced to a series of pools (
<figureCitation id="13712A25FD11FFF8FAFD53703C9DFEAD" box="[1334,1423,259,285]" captionStart="FIGURE 3" captionStartId="4.[151,250,1946,1970]" captionTargetBox="[193,1394,1021,1922]" captionTargetId="figure-61@4.[193,1394,1021,1922]" captionTargetPageId="4" captionText="FIGURE 3. Habitat of Hydaticus spp.: (A) Habitat of H. aequalis sp. n., collecting event BR18-0712-01B; (B) Habitat of H. aequalis sp. n., collecting event BR18-0712-01A; (C) Habitat of H. devexus, near the summit of Pico do Barbardo; red arrow indicates location of pool; (D) Vegetated pool in which H. devexus was found, collecting event BR18-0226-01A." figureDoi="http://doi.org/10.5281/zenodo.4397569" httpUri="https://zenodo.org/record/4397569/files/figure.png" pageId="2" pageNumber="381">Fig. 3A</figureCitation>
). The
<typeStatus id="54F18802FD11FFF8FF025354383BFEF1" box="[201,297,295,321]" pageId="2" pageNumber="381" type="paratype">paratype</typeStatus>
was taken in a small isolated forest puddle that was ca.
<quantity id="4CB29B45FD11FFF8FC5853553AAFFEF1" box="[915,957,294,321]" metricMagnitude="0" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="381" unit="m" value="5.0">5 m</quantity>
from the stream (
<figureCitation id="13712A25FD11FFF8FB4953543DCBFEF1" box="[1154,1241,295,321]" captionStart="FIGURE 3" captionStartId="4.[151,250,1946,1970]" captionTargetBox="[193,1394,1021,1922]" captionTargetId="figure-61@4.[193,1394,1021,1922]" captionTargetPageId="4" captionText="FIGURE 3. Habitat of Hydaticus spp.: (A) Habitat of H. aequalis sp. n., collecting event BR18-0712-01B; (B) Habitat of H. aequalis sp. n., collecting event BR18-0712-01A; (C) Habitat of H. devexus, near the summit of Pico do Barbardo; red arrow indicates location of pool; (D) Vegetated pool in which H. devexus was found, collecting event BR18-0226-01A." figureDoi="http://doi.org/10.5281/zenodo.4397569" httpUri="https://zenodo.org/record/4397569/files/figure.png" pageId="2" pageNumber="381">Fig. 3B</figureCitation>
). Both the stream and puddle had a sand and mud substrate with abundant detritus.
</paragraph>
</subSubSection>
<subSubSection id="C350652BFD11FFF8FF0C531D3AA2FE45" pageId="2" pageNumber="381" type="diagnosis">
<paragraph id="8BF536A0FD11FFF8FF0C531D3AA2FE45" blockId="2.[151,1437,150,501]" pageId="2" pageNumber="381">
<emphasis id="B93EEAB2FD11FFF8FF0C531D38DFFE38" bold="true" box="[199,461,366,392]" pageId="2" pageNumber="381">Differential diagnosis.</emphasis>
<taxonomicName id="4C4A4D23FD11FFF8FE18531C3BBBFE39" authority="Benetti &amp; Gustafson &amp; Hamada &amp; Short, 2020" authorityName="Benetti &amp; Gustafson &amp; Hamada &amp; Short" authorityYear="2020" box="[467,681,367,393]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="2" pageNumber="381" phylum="Arthropoda" rank="species" species="aequalis" status="sp. nov.">
<emphasis id="B93EEAB2FD11FFF8FE18531C3BBBFE39" box="[467,681,367,393]" italics="true" pageId="2" pageNumber="381">Hydaticus aequalis</emphasis>
</taxonomicName>
<emphasis id="B93EEAB2FD11FFF8FD64531C3BFCFE39" bold="true" box="[687,750,367,393]" pageId="2" pageNumber="381">
<taxonomicNameLabel id="A20D57C9FD11FFF8FD64531C3BFCFE39" box="[687,750,367,393]" pageId="2" pageNumber="381" rank="species">sp. n.</taxonomicNameLabel>
</emphasis>
is unique among Neotropical
<taxonomicName id="4C4A4D23FD11FFF8FBF7531C3DBCFE39" authorityName="Leach" authorityYear="1817" box="[1084,1198,367,393]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="2" pageNumber="381" phylum="Arthropoda" rank="genus">
<emphasis id="B93EEAB2FD11FFF8FBF7531C3DBCFE39" box="[1084,1198,367,393]" italics="true" pageId="2" pageNumber="381">Hydaticus</emphasis>
</taxonomicName>
in having the general coloration in dorsal view almost evenly orange-brown and without elytral markings. Among the New World
<taxonomicName id="4C4A4D23FD11FFF8FA8553E039D6FE60" authorityName="Leach" authorityYear="1817" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="2" pageNumber="381" phylum="Arthropoda" rank="genus">
<emphasis id="B93EEAB2FD11FFF8FA8553E039D6FE60" italics="true" pageId="2" pageNumber="381">Hydaticus</emphasis>
</taxonomicName>
,
<taxonomicName id="4C4A4D23FD11FFF8FF1853C43846FE61" authority="Benetti &amp; Gustafson &amp; Hamada &amp; Short, 2020" authorityName="Benetti &amp; Gustafson &amp; Hamada &amp; Short" authorityYear="2020" box="[211,340,439,465]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="2" pageNumber="381" phylum="Arthropoda" rank="species" species="aequalis" status="sp. nov.">
<emphasis id="B93EEAB2FD11FFF8FF1853C43846FE61" box="[211,340,439,465]" italics="true" pageId="2" pageNumber="381">H. aequalis</emphasis>
</taxonomicName>
<emphasis id="B93EEAB2FD11FFF8FE9053C43889FE61" bold="true" box="[347,411,439,465]" pageId="2" pageNumber="381">
<taxonomicNameLabel id="A20D57C9FD11FFF8FE9053C43889FE61" box="[347,411,439,465]" pageId="2" pageNumber="381" rank="species">sp. n.</taxonomicNameLabel>
</emphasis>
is somewhat similar to
<taxonomicName id="4C4A4D23FD11FFF8FD6C53C43A6AFE61" authority="LeConte" authorityName="LeConte" authorityYear="1863" box="[679,888,439,465]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="2" pageNumber="381" phylum="Arthropoda" rank="species" species="piceus">
<emphasis id="B93EEAB2FD11FFF8FD6C53C43A03FE60" box="[679,785,439,464]" italics="true" pageId="2" pageNumber="381">H. piceus</emphasis>
LeConte
</taxonomicName>
being reddish in color and having elytra without markings, however the latter belongs to the subgenus
<taxonomicName id="4C4A4D23FD11FFF8FD3953A83A76FE45" authorityName="Leach" authorityYear="1817" box="[754,868,475,501]" class="Insecta" family="Dytiscidae" genus="Hydaticus" kingdom="Animalia" order="Coleoptera" pageId="2" pageNumber="381" phylum="Arthropoda" rank="genus">
<emphasis id="B93EEAB2FD11FFF8FD3953A83A76FE45" box="[754,868,475,501]" italics="true" pageId="2" pageNumber="381">Hydaticus</emphasis>
</taxonomicName>
(s.str.)
</paragraph>
</subSubSection>
</treatment>
</document>