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<document ID-CLB-Dataset="22234" ID-DOI="http://dx.doi.org/10.3897/dez.67.50078" ID-GBIF-Dataset="08ff13dd-7087-482a-b2bc-e18330938025" ID-Pensoft-Pub="1860-1324-1-35" ID-Pensoft-UUID="42CBDE9B2C305189858C3A18211EA41F" ID-ZooBank="56BB973DBE4E47AEBC98C1F1151C41C4" ModsDocID="1860-1324-1-35" checkinTime="1589248568054" checkinUser="pensoft" docAuthor="Jia, Fenglong, Liang, Zulong &amp; Fikacek, Martin" docDate="2020" docId="38BC7AF31E3C5723A29D6DEC897FECCB" docLanguage="en" docName="DeutEntomolZeit 67(1): 35-49" docOrigin="Deutsche Entomologische Zeitschrift 67 (1)" docSource="http://dx.doi.org/10.3897/dez.67.50078" docTitle="Himalcercyon mirus Jia &amp; Liang &amp; Fikáček 2020, stat. nov." docType="treatment" docVersion="5" id="42CBDE9B2C305189858C3A18211EA41F" lastPageNumber="35" masterDocId="42CBDE9B2C305189858C3A18211EA41F" masterDocTitle="A review of Himalcercyon stat. nov., with description of a new species from the Chinese Himalaya and an updated key to Asian genera of Megasternini (Coleoptera, Hydrophilidae)" masterLastPageNumber="49" masterPageNumber="35" pageNumber="35" updateTime="1732799722832" updateUser="ExternalLinkService">
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<mods:title id="672046D500100039F162F51498B5F80D">A review of Himalcercyon stat. nov., with description of a new species from the Chinese Himalaya and an updated key to Asian genera of Megasternini (Coleoptera, Hydrophilidae)</mods:title>
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<mods:namePart id="942CB6543DD070439CB887C693EC5861">Jia, Fenglong</mods:namePart>
<mods:affiliation id="A29DFF16B5DD3D99CEC6CB9E6EF75296">Institute of Entomology, Life Science School, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China</mods:affiliation>
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<mods:namePart id="FDE16E0DEB298685E5BCE20D15CF20D9">Liang, Zulong</mods:namePart>
<mods:affiliation id="BD4610255BFFEE171BE553859F5DD901">Institute of Entomology, Life Science School, Sun Yat-sen University, Guangzhou, 510275, Guangdong, China</mods:affiliation>
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<mods:namePart id="FB393E7515F64632B11D1306811DC80E">Fikacek, Martin</mods:namePart>
<mods:affiliation id="3DC01F196A3A561B974D538FA2D65B53">Department of Entomology, National Museum, Cirkusova 1740, CZ- 193 00 Praha 9, Czech Republic &amp; Department of Zoology, Faculty of Science, Charles University, Vinicna 7, CZ- 128 44 Praha 2, Czech Republic</mods:affiliation>
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<mods:nameIdentifier id="37ECF2EF2B1936246358FFF30C8F65D0" type="email">mfikacek@gmail.com</mods:nameIdentifier>
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<treatment id="38BC7AF31E3C5723A29D6DEC897FECCB" ID-GBIF-Taxon="164106731" LSID="urn:lsid:plazi:treatment:38BC7AF31E3C5723A29D6DEC897FECCB" httpUri="http://treatment.plazi.org/id/38BC7AF31E3C5723A29D6DEC897FECCB" lastPageNumber="35" pageId="0" pageNumber="35" scope_family="Hydrophilidae" scope_order="Coleoptera" scope_tribe="Megasternini">
<subSubSection id="0C9CBDC372A2BD506F008B8A9646685D" pageId="0" pageNumber="35" type="nomenclature">
<paragraph id="D35FCD5F8B214713DA88140B4E529281" pageId="0" pageNumber="35">
<taxonomicName id="CE14C765975945052AD97A187DF659E4" LSID="38BC7AF3-1E3C-5723-A29D-6DEC897FECCB" authority="(Hebauer, 2002)" authorityName="Jia &amp; Liang &amp; Fikáček" authorityYear="2020" baseAuthorityName="Hebauer" baseAuthorityYear="2002" class="Insecta" family="Hydrophilidae" genus="Himalcercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Himalcercyon mirus" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="mirus" status="stat. nov.">Himalcercyon mirus (Hebauer, 2002)</taxonomicName>
<taxonomicNameLabel id="B31255746738BE8E3B3E76F6159C3C00" pageId="0" pageNumber="35">stat. nov.</taxonomicNameLabel>
<figureCitation id="33AFF58A4CE5FD58A2E784160BC7F0A4" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus and genital morphology of Himalcercyon species. A-D. H. mirus (A, B. Paratypes; C, D. Holotype). E-H. H. franzi sp. nov. (E, F. Paratypes; G, H. Holotype). A, E. Dorsal view; B, F. Lateral view; C, G. Aedeagus in dorsal view; D, H. Sternite IX in dorsal view." figureDoi="10.3897/dez.67.50078.figure1" httpUri="https://binary.pensoft.net/fig/408727" pageId="0" pageNumber="35">Figures 1A-D</figureCitation>
<figureCitation id="2889D7A633B533C8CEE1F83954AE5285" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">, 2</figureCitation>
<figureCitation id="E21E78D7C91BCEA39E17F18F6E5A677F" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Known distribution of Himalcercyon: Circles. H. mirus (Hebauer); Square. H. franzi sp. nov. Color shading of the map indicated altitude: green = lowest, brown = highest." figureDoi="10.3897/dez.67.50078.figure4" httpUri="https://binary.pensoft.net/fig/408730" pageId="0" pageNumber="35">, 4</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="F345180C8E60F6A8F1A329D8020B01FA" pageId="0" pageNumber="35" type="reference_group">
<paragraph id="C39CA3EA1340C1C06F88C09BE7ADF690" pageId="0" pageNumber="35">
<taxonomicName id="AA220D280982B75CEBFBE572185A50AC" authorityName="Hebauer" authorityYear="2002" class="Insecta" family="Hydrophilidae" genus="Cercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cercyon (Himalcercyon) mirus" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="mirus" subGenus="Himalcercyon">Cercyon (Himalcercyon) mirus</taxonomicName>
Hebauer 2002: 39.
</paragraph>
</subSubSection>
<subSubSection id="7B29A98B16BB20D2B1218ADCA41E146A" pageId="0" pageNumber="35" type="type locality">
<paragraph id="AE0459197A1344414330746E7F6707DF" pageId="0" pageNumber="35">Type locality.</paragraph>
<paragraph id="E66ED566C1A2B0300D864DD2E6FA6623" pageId="0" pageNumber="35">
Nepal, Kathmandu district, Sheopuri Mt., 2100-2300 m a.s.l. [GPS ca
<geoCoordinate id="B7CC74055B1FB0FA8D1D06FC785F7F10" degrees="27.816672" direction="north" orientation="latitude" precision="1" value="27.816671">27.816672N</geoCoordinate>
,
<geoCoordinate id="2EFD58E2C0B1F2F6CD7FC01F73591F2E" degrees="85.400000" direction="east" orientation="longitude" precision="1" value="85.4">85.400000E</geoCoordinate>
].
</paragraph>
</subSubSection>
<subSubSection id="EABBAF785A9939A11E58F30DAB8B12EF" pageId="0" pageNumber="35" type="materials_examined">
<paragraph id="246E83AC81A1ED2D035BF8B6926AEF02" pageId="0" pageNumber="35">Material examined.</paragraph>
<paragraph id="8C7A78EA761432AF239D6E0D186CCA9D" pageId="0" pageNumber="35">
<emphasis id="3C167A0C0B6CC88CD37C6881371FA685" bold="true" pageId="0" pageNumber="35">Holotype</emphasis>
: NEPAL ● 1 ♂; Kathmandu Distr. Sheopuri Mt.; 2100-2300 m a.s.l.; 25 Jun 1988; W. Schawaller leg.; SMNS.
</paragraph>
<paragraph id="E4462823AFE25CB44DB6F35EA00E1544" pageId="0" pageNumber="35">
<emphasis id="621CC463BD53272C43EDB1DE1A536724" bold="true" pageId="0" pageNumber="35">Paratypes</emphasis>
: NEPAL ● 2 ♀♀; same data as for holotype; SMNS ● 1 ♀; same data as for holotype; NMPC ● 1 ♀; Annapurna, Telbrung Danda; 2600-2800 m a.s.l.; 13 Jun 1997; Schmidt leg.; SMNS.
</paragraph>
</subSubSection>
<subSubSection id="7C7F73FCC34A1289FFC5D06D463B7F8C" pageId="0" pageNumber="35" type="redescription">
<paragraph id="CE6A25026D41405FFE4B7E8641A6B0F6" pageId="0" pageNumber="35">Redescription.</paragraph>
<paragraph id="7813420A3186A801BA8834CF8528B0FF" pageId="0" pageNumber="35">
<emphasis id="705CD01D664046214F751D509717B22A" bold="true" italics="true" pageId="0" pageNumber="35">Form and color.</emphasis>
Body size 3.1-3.5 mm (3.4 mm in holotype), body width 2.0-2.1 mm (2.0 mm in holotype), widest at anterior third of elytra, weakly narrowing posteriad (Fig.
<figureCitation id="3AB602B61AC8461A9C7AA766F9D1B142" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus and genital morphology of Himalcercyon species. A-D. H. mirus (A, B. Paratypes; C, D. Holotype). E-H. H. franzi sp. nov. (E, F. Paratypes; G, H. Holotype). A, E. Dorsal view; B, F. Lateral view; C, G. Aedeagus in dorsal view; D, H. Sternite IX in dorsal view." figureDoi="10.3897/dez.67.50078.figure1" httpUri="https://binary.pensoft.net/fig/408727" pageId="0" pageNumber="35">1A</figureCitation>
). Dorsum pitchy-brown to black; head with paler clypeus; pronotal margins brown; elytral apices and posterior half of lateral elytral margins brownish; epipleuron pitchy brown laterally, reddish mesally; antenna, maxillary and labial palpi brown to reddish brown; legs reddish brown, with darker femora.
</paragraph>
<paragraph id="70D5F8BBF4365F18657D55EA69AA01F5" pageId="0" pageNumber="35">
<emphasis id="954C5F1F55EF82D8247621606714AFCA" bold="true" italics="true" pageId="0" pageNumber="35">Head.</emphasis>
Clypeus with moderately dense fine setiferous semicircular punctures, smooth between punctures. Frons with punctures of the same size and density as those on clypeus, smooth between punctures. Mentum 1.4
<normalizedToken id="BFCBC383B27E882E20FD09AF5B599E12" originalValue="×">x</normalizedToken>
wider than long, rugose, with dense punctures (Fig.
<figureCitation id="C95EC0304861DE5A34605946682C6E94" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">2B</figureCitation>
), slightly concave anteriorly. Antenna with pedicel ca 0.2
<normalizedToken id="A88FCA7E01813793F1832819E1B2E19A" originalValue="×">x</normalizedToken>
as long as scape, pedicel ca. as long as antennomeres 3 and 4 combined, cupule small.
</paragraph>
<paragraph id="762FC5949500FEB555D0A5A005EF24ED" pageId="0" pageNumber="35">
<emphasis id="7DA874150E332ED431D4826D32843C7F" bold="true" italics="true" pageId="0" pageNumber="35">Thorax.</emphasis>
Pronotum with punctation similar to that on frons, interstices without microsculpture; lateral marginal bead shortly overlapping to anterior margin but not to posterior margin, stopping at posterior angle. Scutellar shield smooth, with five to seven punctures. Elytral striae sharply impressed (Fig.
<figureCitation id="97260FC48A8796BF21C7D04626C138B5" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus and genital morphology of Himalcercyon species. A-D. H. mirus (A, B. Paratypes; C, D. Holotype). E-H. H. franzi sp. nov. (E, F. Paratypes; G, H. Holotype). A, E. Dorsal view; B, F. Lateral view; C, G. Aedeagus in dorsal view; D, H. Sternite IX in dorsal view." figureDoi="10.3897/dez.67.50078.figure1" httpUri="https://binary.pensoft.net/fig/408727" pageId="0" pageNumber="35">1A</figureCitation>
), striae 6, 8, and 9 not reaching base; intervals with finer and sparser punctures than on pronotum, each puncture bearing a fine short seta, interstices between punctures smooth. Epipleuron with bare outer and pubescent inner portion delimited from each other by a fine ridge, inner pubescent part narrower than the outer part, reaching the level of posterior part of metaventrite (Fig.
<figureCitation id="3C3FD9821CE68154F773F730FF15F34F" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus and genital morphology of Himalcercyon species. A-D. H. mirus (A, B. Paratypes; C, D. Holotype). E-H. H. franzi sp. nov. (E, F. Paratypes; G, H. Holotype). A, E. Dorsal view; B, F. Lateral view; C, G. Aedeagus in dorsal view; D, H. Sternite IX in dorsal view." figureDoi="10.3897/dez.67.50078.figure1" httpUri="https://binary.pensoft.net/fig/408727" pageId="0" pageNumber="35">1A</figureCitation>
). Mesoventral elevation arrowhead-shaped, ca 1.5
<normalizedToken id="FA81259A4C072FE6B4E0160BFC60D90D" originalValue="×">x</normalizedToken>
longer than wide, sparsely pubescent (Fig.
<figureCitation id="138E4C18B6043925903B91029BFDF17C" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">2F</figureCitation>
). Metaventrite with large median elevation, finely and sparsely punctate (Fig.
<figureCitation id="05EF6ECCB1DB2B69705F4DB37767D8B7" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">2E</figureCitation>
), interstices without microsculpture; lateral portions microsculptured, with sparse coarse punctures and dense pubescence. Legs with trochanters densely pubescent, femora with sparse and moderately coarse punctures, interstice between punctures with fine microsculpture consisting of transverse lines.
</paragraph>
<paragraph id="B27C9D8FBD25E33BFDD88925240F887F" pageId="0" pageNumber="35">
<emphasis id="40275FC9B97E54BED6380F074F377FD7" bold="true" italics="true" pageId="0" pageNumber="35">Male genitalia.</emphasis>
Middle lobe of abdominal sternite IX narrow, shorter than lateral struts (Fig.
<figureCitation id="E523600B9C94C4043A8A23016C5B29BC" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus and genital morphology of Himalcercyon species. A-D. H. mirus (A, B. Paratypes; C, D. Holotype). E-H. H. franzi sp. nov. (E, F. Paratypes; G, H. Holotype). A, E. Dorsal view; B, F. Lateral view; C, G. Aedeagus in dorsal view; D, H. Sternite IX in dorsal view." figureDoi="10.3897/dez.67.50078.figure1" httpUri="https://binary.pensoft.net/fig/408727" pageId="0" pageNumber="35">1D</figureCitation>
). Aedeagus (Fig.
<figureCitation id="A5C46CFC9FF08C6A4400B4DF6B09C14D" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Habitus and genital morphology of Himalcercyon species. A-D. H. mirus (A, B. Paratypes; C, D. Holotype). E-H. H. franzi sp. nov. (E, F. Paratypes; G, H. Holotype). A, E. Dorsal view; B, F. Lateral view; C, G. Aedeagus in dorsal view; D, H. Sternite IX in dorsal view." figureDoi="10.3897/dez.67.50078.figure1" httpUri="https://binary.pensoft.net/fig/408727" pageId="0" pageNumber="35">1C</figureCitation>
) with median lobe ca as long as tegmen; paramere ca 1.5
<normalizedToken id="57EC382A1F88096BE50203E1C32BA81E" originalValue="×">x</normalizedToken>
as long as phallobase. Paramere gradually narrowed from base to apex, obliquely truncate apically, widened inwards to form a process with a few setae. Median lobe ca as wide as paramere, gradually narrowing in apical third, apex narrowly rounded, gonopore subapical.
</paragraph>
</subSubSection>
<subSubSection id="919949C1CA8380A235FA28A152A7D44B" pageId="0" pageNumber="35" type="distribution">
<paragraph id="E7359CC249F98CA5B7385998BD000F5F" pageId="0" pageNumber="35">Distribution.</paragraph>
<paragraph id="FAB83092376727985A1F20A43E5BB0C0" pageId="0" pageNumber="35">
Known from two localities in central Nepal (Fig.
<figureCitation id="EE9F1F45A7C6AEDCB3E22554700A936F" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Known distribution of Himalcercyon: Circles. H. mirus (Hebauer); Square. H. franzi sp. nov. Color shading of the map indicated altitude: green = lowest, brown = highest." figureDoi="10.3897/dez.67.50078.figure4" httpUri="https://binary.pensoft.net/fig/408730" pageId="0" pageNumber="35">4</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="295F239CC4787E2307CB156EFA297028" pageId="0" pageNumber="35" type="key to eastern palaearctic and oriental genera of the megasternini">
<paragraph id="2F4B61BF076CE10CDCCCAEC097BF67C0" pageId="0" pageNumber="35">
Key to Eastern Palaearctic and Oriental genera of the
<taxonomicName id="2F89AF97CFC33B29AECAE1687DCAEEEC" authorityName="Mulsant" authorityYear="1844" lsidName="" pageId="0" pageNumber="35" rank="tribe" tribe="Megasternini">Megasternini</taxonomicName>
</paragraph>
<paragraph id="4CE87223683D4068BC1874B1A22C0854" pageId="0" pageNumber="35">
The following key is mainly based in the ventral characters, namely the form of prosternum and meso- and metaventrite, which are illustrated in Figures
<figureCitation id="A22B017703BEEADBEB37D3029AEAEE47" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5</figureCitation>
-
<figureCitation id="B7BA4F2BE320BC6ABB863B3F78319B13" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8</figureCitation>
. The concept of some of the genera will likely be modified in the future; the key reflects the current status. The key includes all genera occurring east of Iran, the Black Sea, and the Ural Mountains. (i.e. it does not cover the Near East and the Arabian Peninsula); eastwards it includes all regions west of New Guinea. See Table
<tableCitation id="7E88CC70DEDB6893DACD1B220584FB63" captionStart="Table 1" captionStartId="T1" captionText="Table 1. List of Eastern Palaearctic and Oriental general of the Megasternini, with number of described species and references to the most important keys or taxonomic treatments." httpUri="http://table.plazi.org/id/28E98DED638397E743FA97026DE60011" pageId="0" pageNumber="35" tableUuid="28E98DED638397E743FA97026DE60011">1</tableCitation>
for the number of described species and references to the most important keys or taxonomic treatments for each genus. Remarks and numbers of species only refer to those from the Eastern Palaeartic and Oriental Regions.
</paragraph>
<paragraph id="7ECE197DCFA9EE3571D884620F0407D5" pageId="0" pageNumber="35">
<table id="99C60835EF618826C045D2C612FB6DE9" pageId="0" pageNumber="35">
<tr id="A8AB5765C3B8C4B62D4A58528894B69B" pageId="0" pageNumber="35">
<td id="7C624CEECF26CC7402B30B140E26517E" colspan="1" pageId="0" pageNumber="35" rowspan="1">1</td>
<td id="E72FB9B7260CF6797D09086C12A6E2FF" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Antennal grooves large, reaching to the lateral margin of hypomeron (Fig.
<figureCitation id="426853106092379F28C662F7633C0CEA" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5A, B, D</figureCitation>
).
</td>
<td id="581FD1634E90197ACF3F7234EBD181DB" colspan="1" pageId="0" pageNumber="35" rowspan="1">2</td>
</tr>
<tr id="C836879B2C4BD9CD6C30DAD23C5FC2A2" pageId="0" pageNumber="35">
<td id="6465A0375E8B8EA72A43596F064DE237" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="85EDAC1ABEBAF0098BDE79E60E47EC30" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Antennal grooves absent or small, not reaching to the lateral margin of the hypomeron (Figs
<figureCitation id="2F14ED4E0141F01868FBC78B645055E5" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5E, F</figureCitation>
,
<figureCitation id="41A90E4A29749B3915D96D04710EF6C9" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6</figureCitation>
,
<figureCitation id="331CC4684FA5D1A1D9CCAC898C7E6087" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7</figureCitation>
,
<figureCitation id="6DF432A8373C4C31D88613CC5F9113FB" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8A-C</figureCitation>
)
</td>
<td id="FFB5BFE853EB06AAB37CD0CC4773FC1E" colspan="1" pageId="0" pageNumber="35" rowspan="1">5</td>
</tr>
<tr id="496D7A24E65B998D7469174F4E62CC5D" pageId="0" pageNumber="35">
<td id="28850E79C9E94642C50218CF13665C1C" colspan="1" pageId="0" pageNumber="35" rowspan="1">2</td>
<td id="749ED3EF664D7846134FAB122753DD3E" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite with complete femoral lines reaching from posteriomesal portion to anterolateral corner (Fig.
<figureCitation id="BE70654FF949468205565BB9FAD8D7FA" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5A, D</figureCitation>
)
</td>
<td id="F312CC7915B9101589F6597976902A62" colspan="1" pageId="0" pageNumber="35" rowspan="1">3</td>
</tr>
<tr id="E61F5016C694A827E82C4DD9BB56E651" pageId="0" pageNumber="35">
<td id="CC8F8A8A3DCBA492691EFC93564DCCB9" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="61418F7F580D4B7A9CA24006695A5175" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite without complete femoral lines, at most with short vestiges anterolaterally. (Fig.
<figureCitation id="C3938B8287D74C1EC31AC44BE60D8721" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5B, C</figureCitation>
)
</td>
<td id="1F797770EB63E77A9AE9B4E1FE320E9C" colspan="1" pageId="0" pageNumber="35" rowspan="1">4</td>
</tr>
<tr id="D5F92FBE6A546D8CAACD6AFE5A7A2A2C" pageId="0" pageNumber="35">
<td id="2C007DD9B936FC4625E00CFC7D08607F" colspan="1" pageId="0" pageNumber="35" rowspan="1">3</td>
<td id="7CDD681F0A2D3D8EB11EF971F2CDAFE2" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral plate wider than long. Prosternum with wide plate without median carina (Fig.
<figureCitation id="8D006B35037079CDA59BCAE59BF22E84" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5A</figureCitation>
). Mentum with sharply pointed anterolateral corners (Fig.
<figureCitation id="E0A815B94D62B4EBE5DCBB3460D01890" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8D</figureCitation>
)
</td>
<td id="E9A2DD9FAB6FB3C5FFEA30171E21B96F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="0BCA0F9AED0A7BE353CC33CB4C1A1691" authorityName="Mulsant" authorityYear="1844" class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="765BEC9F1BFDB8722120445D70755197" italics="true" pageId="0" pageNumber="35">Cryptopleurum</emphasis>
</taxonomicName>
Mulsant
</td>
</tr>
<tr id="928E13771B657B55BCD814AE370C1A7B" pageId="0" pageNumber="35">
<td id="027DB47CF7E7E79210444C2A799CC290" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="6A5DF45C7C952487039B0680B4339C3C" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral plate approximatley as long as wide. Prosternal plate approximately as long as wide, with more or less distinct median carina (Fig.
<figureCitation id="8E2F65E834D0CD5E0C3FD8E8B002942C" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5D</figureCitation>
). Mentum with bluntly rounded anterolateral corners
</td>
<td id="DFDE6DF2A123D6245FEABC903D533A1F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="627B2BBDD45A085FB227D21E234608E8" authorityName="Motschoulsky" authorityYear="1863" class="Insecta" family="Hydrophilidae" genus="Pachysternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pachysternum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="6147AD23728C7002FCD95E7D5E038D30" italics="true" pageId="0" pageNumber="35">Pachysternum</emphasis>
</taxonomicName>
Motschulsky
</td>
</tr>
<tr id="4BACC109826C9D81D87751A6BF9DD69B" pageId="0" pageNumber="35">
<td id="BFD3DFAF2E20C5B71483D36635CB3B9C" colspan="1" pageId="0" pageNumber="35" rowspan="1">4</td>
<td id="3FEBCA8BB16BAEB904F6DC089256E9CA" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum roof-like, high (Fig.
<figureCitation id="CBD3DBB6EBDB6C45D13C067AB38ECDB4" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5C</figureCitation>
). Mesoventral plate longer than wide. Metaventrite without any traces of femoral lines (Fig.
<figureCitation id="FE60EA9EEA156E3039D2309A78A6665C" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5C</figureCitation>
). Anterior tibia without anterolateral excision
</td>
<td id="C4E643B3A3083112BF670A4499B6E46E" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="40367A8888A6D5F10463070B31DEB0EE" authorityName="d'Orchymont" authorityYear="1941" class="Insecta" family="Hydrophilidae" genus="Pacrillum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pacrillum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="B44491212D76F7625063171469D9C0E3" italics="true" pageId="0" pageNumber="35">Pacrillum</emphasis>
</taxonomicName>
d'Orchymont
</td>
</tr>
<tr id="2A6F1AF57D72057B08547FA6005BF865" pageId="0" pageNumber="35">
<td id="57B63D6875A3D1761B0453A68C3516F0" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="9442DEF30675D072267798878125BB0B" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum with flat hexagonal plate, not carinate medially (Fig.
<figureCitation id="4C3EE479304AF6C432ADCB3A6B3F5C00" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5B</figureCitation>
). Mesoventral plate slightly wider than long. Metaventrite with vestiges of femoral lines in anterolateral corners (Fig.
<figureCitation id="E4195635CFF188EB61EF7C2E4063D11C" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5B</figureCitation>
). Anterior tibia anterolaterally with emargination
</td>
<td id="56D505D8F66BC3329E1528D425356E59" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="ED4308B3B6007F56F2023B9DE78549B2" class="Insecta" family="Hydrophilidae" genus="Megasternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megasternum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="22027CCAF797F4342404FDFD5B7A06E2" italics="true" pageId="0" pageNumber="35">Megasternum</emphasis>
</taxonomicName>
Mulsant
</td>
</tr>
<tr id="CD63BD7E7C76C2C3C2E5168ABE899727" pageId="0" pageNumber="35">
<td id="176856DC6805CB71FF8B43C17BBD700F" colspan="1" pageId="0" pageNumber="35" rowspan="1">5</td>
<td id="36741355F21F843A84A1C38EE8EE022A" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite with postcoxal ridge widely diverging from posterior margin of coxal cavity and forming an arcuate ridge reaching lateral margin of metaventrite (Figs
<figureCitation id="054DC20A2A0DB62042D971DB97F26293" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5E, F</figureCitation>
,
<figureCitation id="4E1620F9CA71E0211D3C60AB1939E3F4" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6A, B</figureCitation>
)
</td>
<td id="6D582A33947E2446EF2A9CCE6C50B426" colspan="1" pageId="0" pageNumber="35" rowspan="1">6</td>
</tr>
<tr id="0602B27A0619AE44CF89E7E95250EE77" pageId="0" pageNumber="35">
<td id="85A347C7C42D7AE3BB107C8FD72DED04" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="176BCC7F23E83FD562C723324C26BFDC" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite with postcoxal ridge parallel to posterior margin of coxal cavity or nearly so, reaching anterolateral corner of metaventrite and not forming any arcuate ridge (Figs
<figureCitation id="2BB2625B36A1D3C4974519283AD214DE" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6C-F</figureCitation>
,
<figureCitation id="E923D6359D8DDEABAC318D118D738780" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7</figureCitation>
,
<figureCitation id="B3C3E453339FCACD3B13BE4B46A443F8" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8A-C</figureCitation>
)
</td>
<td id="75665AE04D25E6D4DF831F54A7802572" colspan="1" pageId="0" pageNumber="35" rowspan="1">9</td>
</tr>
<tr id="7A5C569EE60469FFE233354090D7FB4B" pageId="0" pageNumber="35">
<td id="845F941298A393584B745096410D6D7D" colspan="1" pageId="0" pageNumber="35" rowspan="1">6</td>
<td id="2D0915A3A0F16D4D8121A6484DBD0CB2" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite with complete femoral lines crossing the arcuate postcoxal ridge and X-shape in form (Fig.
<figureCitation id="D0622D848005D74E6723C1A4DD4076AF" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5E</figureCitation>
). Mesoventral elevation narrowly elongate or narrow but widely contacting metaventrite
</td>
<td id="FF4C504B0E515726F4E5C252B1A41C0E" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="40C6223043AF0ED4F34A1620CA4B027A" authorityName="d'Orchymont" authorityYear="1925" class="Insecta" family="Hydrophilidae" genus="Peltocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Peltocercyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="E8D6F396EB64DC3455795BD58BB92067" italics="true" pageId="0" pageNumber="35">Peltocercyon</emphasis>
</taxonomicName>
d'Orchymont
</td>
</tr>
<tr id="0991D9F3FA5F018FC091A7CBDCE99C81" pageId="0" pageNumber="35">
<td id="569023C83214618346A32F9B43F5D968" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="F1CCBCB66801FF62EF953FAA95C8CC4F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite without X-shaped structure, femoral lines absent or short, not crossing with arcuate postcoxal ridge (Figs
<figureCitation id="C030554AA62273869FFBB7B25EA71FB6" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5F</figureCitation>
,
<figureCitation id="0960D7B2744E4CCBB15EFDA69679B8F3" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6A, B</figureCitation>
).
</td>
<td id="EBBF99AA7A8EFB2F8973E8C7BD19054D" colspan="1" pageId="0" pageNumber="35" rowspan="1">7</td>
</tr>
<tr id="84F4B0FD4943A22079301BE12F919399" pageId="0" pageNumber="35">
<td id="AE7E94555AAB872BF1F29295297B25F9" colspan="1" pageId="0" pageNumber="35" rowspan="1">7</td>
<td id="D51AE86A7A9C11BCFA0AFFD453076BD1" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral plate widely contacting metaventrite (Fig.
<figureCitation id="C11197C3C29A591BCD767DEB9151DFFD" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6A, B</figureCitation>
). Median portion of prosternum at least weakly delimited from lateral portions
</td>
<td id="1CAA1994419F0DEBC297FAC30C1CDBD8" colspan="1" pageId="0" pageNumber="35" rowspan="1">8</td>
</tr>
<tr id="25571A77381F24C0DE1FBD360107CBBA" pageId="0" pageNumber="35">
<td id="3B5990088A43079FFC975A9B09DC95DE" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="F2F59E9AAB4D3C771B3075F0F09AB0E2" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral plate separated from metaventrite by a wide deep gap (Fig.
<figureCitation id="E1799E96CEA55EE714BCAC3509351B5C" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Cryptopleurum ferrugineum. B. Megasternum concinnum. C. Pacrillum manchuricum. D. Pachysternum nigrovittatum. E. Peltocercyon coomani. F. Armostus schenklingi." figureDoi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35">5F</figureCitation>
). Median portion of prosternum simply carinate, not delimited from lateral portions
</td>
<td id="9F98FD3C9C0903E91B0823F34E596225" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="17E7463DE15EC211250597B4F4B62866" authorityName="Sharp" authorityYear="1890" class="Insecta" family="Hydrophilidae" genus="Armostus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Armostus" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="61F8AAC6FDD39E264FF64FF72B972761" italics="true" pageId="0" pageNumber="35">Armostus</emphasis>
</taxonomicName>
Sharp
</td>
</tr>
<tr id="3E2EA5D52FA42B72D0683056782AA678" pageId="0" pageNumber="35">
<td id="7220A96F018B4885E2AB35FE7DDFCA5B" colspan="1" pageId="0" pageNumber="35" rowspan="1">8</td>
<td id="A3B900C2BA803DA7552112B07A2F5E5B" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite with deep triangular impression along its lateral margin (Fig.
<figureCitation id="814F19953C9FFBE35D666A25A74AF299" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6A</figureCitation>
)
</td>
<td id="91E3381C8FB34520F3995E30EE4F40F9" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="B7DD45C887BF26391866A09BFE47F172" authorityName="d'Orchymont" authorityYear="1926" class="Insecta" family="Hydrophilidae" genus="Morastus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Morastus" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="114D169C9C73B986BA7FCE415C248DB5" italics="true" pageId="0" pageNumber="35">Morastus</emphasis>
</taxonomicName>
d'Orchymont
</td>
</tr>
<tr id="1225A296E961428320FC09C17A39A4E2" pageId="0" pageNumber="35">
<td id="275DE4FB4E75909AD126F62CDD561174" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="E0B1A6F91CDA935BE650200601F9C7AF" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Metaventrite without such impression (Fig.
<figureCitation id="DA81F9925DBC6E998F6A8B5E8E79ED33" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6B</figureCitation>
)
</td>
<td id="C0D2D7720C15D2C67267F6D7546BD15A" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="3FC64D8D0C99CB8885E7280371F1EFD5" authorityName="Sharp" authorityYear="1882" class="Insecta" family="Hydrophilidae" genus="Oosternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oosternum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="7198068DC378F7EC8DE6306E5E9FB3EB" italics="true" pageId="0" pageNumber="35">Oosternum</emphasis>
</taxonomicName>
Sharp
</td>
</tr>
<tr id="7B02AE9070512987D28C10F27EF7735F" pageId="0" pageNumber="35">
<td id="62B9CCEC1B7CB3725C488755F31D3FED" colspan="1" pageId="0" pageNumber="35" rowspan="1">9</td>
<td id="A32C60C91A2B63700FA114C6938623DD" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum highly elevated and/or delimited from lateral portions by sharp ridges (Figs
<figureCitation id="6F69876321888D962108E46E2F41E057" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6C-F</figureCitation>
,
<figureCitation id="76CFF080B38896A14D62E461E4F7E8BF" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7A-D</figureCitation>
)
</td>
<td id="CFF9928947B22100DFBC4831389C9BFF" colspan="1" pageId="0" pageNumber="35" rowspan="1">10</td>
</tr>
<tr id="09BCD5885F7F6E512C530D47F6B36C65" pageId="0" pageNumber="35">
<td id="979A616D45A74AA180EBB3B9002B0E90" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="6E230A8208F96F05DD92506CBF07A408" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum finely carinate, not delimited from lateral portions (Figs
<figureCitation id="EB1A2CF2FC93A959444617BA1153FA88" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7E, F</figureCitation>
,
<figureCitation id="146026B4A89C3F41111681E3ED126526" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8A, B</figureCitation>
)
</td>
<td id="CFF0855D9FD2F2AE97C13505DD3568C0" colspan="1" pageId="0" pageNumber="35" rowspan="1">18</td>
</tr>
<tr id="F67CEB8E1F8BC68636E2F26FBCBE7176" pageId="0" pageNumber="35">
<td id="096FA80FB90022432C26DF6CC2980B07" colspan="1" pageId="0" pageNumber="35" rowspan="1">10</td>
<td id="E45F76CF83FD3B88B832A3FD05D6A25F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Pronotum with deep longitudinal grooves (Fig.
<figureCitation id="F93BEA548454BD1A8C18040A1F5FAAB3" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8E</figureCitation>
). Bare portion of metaventrite very wide (Fig.
<figureCitation id="85BC8A50FCA57AB30D97C9FF73291CEC" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6C</figureCitation>
). Tiny beetles: length ca 1.2 mm
</td>
<td id="B7E7CA696258A195BA8613F0F89EAC42" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="DACD77935BE81D3E9D9BB437063EF0F5" authorityName="d'Orchymont" authorityYear="1937" class="Insecta" family="Hydrophilidae" genus="Emmidolium" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Emmidolium" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="E6A89A7187EC3DECD70A56A60EC5B74E" italics="true" pageId="0" pageNumber="35">Emmidolium</emphasis>
</taxonomicName>
d'Orchymont
</td>
</tr>
<tr id="9C18E269F594414E3B1DD4752F319F78" pageId="0" pageNumber="35">
<td id="0C198BCC4CDA0B03110418361A325DA1" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="5A02A63BCF4AAF010B3E8C98C3409C85" colspan="1" pageId="0" pageNumber="35" rowspan="1">Surface of pronotum without distinct longitudinal depressions. Bare portion of metaventrite confined to medial part only. Tiny to moderately large beetles</td>
<td id="CA1AC543A4ABD7B81E6D6B025379C64D" colspan="1" pageId="0" pageNumber="35" rowspan="1">11</td>
</tr>
<tr id="A2465C9CCD5E54A3E6E2631DFF6ABC95" pageId="0" pageNumber="35">
<td id="EECAC72D9CB9568BE77464F509F53DE2" colspan="1" pageId="0" pageNumber="35" rowspan="1">11</td>
<td id="3EC92C14C7DBD46B5661DCB7A9DAF788" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum in form of very small triangular, very highly elevated projection. Antennal grooves absent (Fig.
<figureCitation id="6DFC69704293FB9D1C6F01EDCB0F7DAE" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6D</figureCitation>
). Abdomen with apical emargination
</td>
<td id="F871A2F3FD308E1345AE7654D26E2761" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="05342F4AC532843763006A8004CE1AF8" authorityName="Fikacek, Maruyama, Vondracek &amp; Short" authorityYear="2013" class="Insecta" family="Hydrophilidae" genus="Chimaerocyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chimaerocyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="645910805755D9B6E68612BB1F6AD8EF" italics="true" pageId="0" pageNumber="35">Chimaerocyon</emphasis>
</taxonomicName>
<normalizedToken id="437A434C7EB406FA458C6DB08C257E2A" originalValue="Fikáček">Fikacek</normalizedToken>
, Maruyama,
<normalizedToken id="886535098310A6B574FD4999022DE852" originalValue="Vondráček">Vondracek</normalizedToken>
&amp; Short
</td>
</tr>
<tr id="565BC50641699679ACE9E33A792505B7" pageId="0" pageNumber="35">
<td id="FD3021CE8BB4FA7E8F2725901066126D" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="3BFA833207BCC964F4DD791F105C9559" colspan="1" pageId="0" pageNumber="35" rowspan="1">Median portion of prosternum never so tiny and not so highly elevated. Antennal grooves present, even though sometimes rather small. Abdomen never with apical emargination</td>
<td id="77672E3405A7A50C12877AB4EEDC7E2E" colspan="1" pageId="0" pageNumber="35" rowspan="1">12</td>
</tr>
<tr id="129669560469951B5B36210228F836AF" pageId="0" pageNumber="35">
<td id="F0D5C2C2466783F67DF09D512132DC33" colspan="1" pageId="0" pageNumber="35" rowspan="1">12</td>
<td id="F0086E08105473C609A5E8E499815268" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Prosternal elevation with lateral margins deeply excised (Fig.
<figureCitation id="984B7C43CAD0E112F2CAEBF1B1662C1B" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6E, F</figureCitation>
)
</td>
<td id="848B878FF8AC28C3B11A25525D858ADA" colspan="1" pageId="0" pageNumber="35" rowspan="1">13</td>
</tr>
<tr id="F72DC92C94EBEFA04F10BC50C38782C3" pageId="0" pageNumber="35">
<td id="A50677B8F4DE799D901FF026C22D43D2" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="0030B95BBBEB978245BBEB2A32EB467B" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Prosternal elevation with lateral margins or ridges straight (Fig.
<figureCitation id="33846BC9C7E351C806A819AA1F60FD6B" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7A-D</figureCitation>
)
</td>
<td id="8ECC827F3E01BFB9BF3546F73A861AB8" colspan="1" pageId="0" pageNumber="35" rowspan="1">14</td>
</tr>
<tr id="5AE4C19909DE8A20FC55ED256A824AE0" pageId="0" pageNumber="35">
<td id="EC6A2A23310A712666B05681154F6451" colspan="1" pageId="0" pageNumber="35" rowspan="1">13</td>
<td id="52B982CD570ECD289E2A69C22FC56E6D" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Tiny species, 1.2-1.6 mm. Metaventrite with complete femoral lines (Fig.
<figureCitation id="303B0658AF066A8F89783C69C3B58F3A" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6E</figureCitation>
). Antennal grooves present
</td>
<td id="206267346116511438BAD0E9BF0AE32C" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="0A556F511F95609433CAAAED995A5DF8" authorityName="Scott" authorityYear="1913" class="Insecta" family="Hydrophilidae" genus="Paroosternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paroosternum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="8ECA060C1B6CFEE5AD3CB88463357EC7" italics="true" pageId="0" pageNumber="35">Paroosternum</emphasis>
</taxonomicName>
Scott
</td>
</tr>
<tr id="B29C68019D1CEB5E745CA3296BF30E54" pageId="0" pageNumber="35">
<td id="54671750F2536E8F169FA64C307CE11B" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="0D87E8431D669786AA3FDC7A25E4285C" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Large species, ca 3.0 mm. Metaventrite without femoral lines (Fig.
<figureCitation id="033A0CDAE28268EA6F432CAA7F7DA8ED" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Ventral view of thorax of eastern Palaearctic and Oriental genera of the Megasternini. A. Morastus gracilipalpis. B. Oosternum sp. (O. soricoides group). C. Emmidolium excavatum. D. Chimaerocyon shimadai. E. Paroosternum sp. F. Oreosternum frigidum." figureDoi="10.3897/dez.67.50078.figure6" httpUri="https://binary.pensoft.net/fig/408732" pageId="0" pageNumber="35">6F</figureCitation>
). Antennal grooves absent
</td>
<td id="A9939A2E99F70C914E059F26F54700AB" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="FD84E002D20771515474811A39024358" authorityName="Jia &amp; Liang &amp; Fikáček" authorityYear="2020" class="Insecta" family="Hydrophilidae" genus="Oreosternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oreosternum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="596583F614E210AFEC27D6A1FFB4F997" italics="true" pageId="0" pageNumber="35">Oreosternum</emphasis>
</taxonomicName>
nom. nov.
</td>
</tr>
<tr id="B1B526606ABB5583DC6B6996B4280EE8" pageId="0" pageNumber="35">
<td id="89C33FD320F22F63E6A3721C6C9D8B80" colspan="1" pageId="0" pageNumber="35" rowspan="1">14</td>
<td id="199774A6DCBB80345C35113C8FE7FC4C" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Elytral series deeply impressed with the impressions contiguous to anterior margin of each elytron (Fig.
<figureCitation id="ABB4FAEEE4FA4B8D2D314BBB42D6AFFC" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8F, G</figureCitation>
). Mesoventral elevation longer than wide, rhomboid to suboval (Fig.
<figureCitation id="526B0C702C1A5BE11358DF7EF90B5CDE" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7A, B</figureCitation>
)
</td>
<td id="EF23A78DBEF0B6274EC51C499B9DC207" colspan="1" pageId="0" pageNumber="35" rowspan="1">15</td>
</tr>
<tr id="BC29293EA791F96AC5D4467466163768" pageId="0" pageNumber="35">
<td id="672DB66F6A4D3F492CE25BE8A793C0EC" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="C1A131352C0AE2BB05D4FE17D2EECD29" colspan="1" pageId="0" pageNumber="35" rowspan="1">Elytral series not impressed or impressions of elytral striae series not reaching anterior margin of each elytron. Mesoventral elevation elongate or as long as wide</td>
<td id="AB95C49C62B42AAB9A9135C8EE3DA43D" colspan="1" pageId="0" pageNumber="35" rowspan="1">16</td>
</tr>
<tr id="24CBE815A987363F90D8BFDB7F19AFE1" pageId="0" pageNumber="35">
<td id="5F1619C7F45FB0D8591D945F866631C9" colspan="1" pageId="0" pageNumber="35" rowspan="1">15</td>
<td id="444F7540E656C41B855063B2FB95B1E2" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Pronotum highly bulged in lateral view, not forming a continuous curve with elytra. Anterior margin of prosternal elevation strongly projecting anteriad (Fig.
<figureCitation id="2160BA4D815F76A407C7D7717CA16A05" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7A</figureCitation>
). Mesoventral elevation subrhomboid
</td>
<td id="0F3F4DF4BD9E262175A77F70953C3921" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="9C04549F563C0B969DCDE99668C3BE51" authorityName="Hansen" authorityYear="1999" class="Insecta" family="Hydrophilidae" genus="Bolbonotum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Bolbonotum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="41CE3DDDD8B313F0AB76750F14DD3408" italics="true" pageId="0" pageNumber="35">Bolbonotum</emphasis>
</taxonomicName>
Hansen
</td>
</tr>
<tr id="9783BE600EF631B0C02BC07DAD4880FB" pageId="0" pageNumber="35">
<td id="A5F95DCFF23D8EE89F3B81B27EBEE73C" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="01708FA21D04C1DE6F0CD6E70276B99F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Pronotum not highly bulged in lateral view, forming a continuous curve with elytra. Anterior margin of prosternal elevation straight (Fig.
<figureCitation id="2CEFEAF58063A1D1AD8EA1757A339892" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7B</figureCitation>
). Mesoventral elevation suboval
</td>
<td id="EADCC0E319E80ED2C781A6F6CF3DD2DA" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="2BEF5C9AFD9FE952E2B02C82FE1E7288" authorityName="Hansen" authorityYear="1999" class="Insecta" family="Hydrophilidae" genus="Kahanga" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Kahanga" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="12CEDA76EBB57F08345EBB6C3BF79084" italics="true" pageId="0" pageNumber="35">Kahanga</emphasis>
</taxonomicName>
Hansen
</td>
</tr>
<tr id="45DE2745422205C582A047DBA40A5BF5" pageId="0" pageNumber="35">
<td id="F55B26E6BEF88DDCAF5D936DEB9F7301" colspan="1" pageId="0" pageNumber="35" rowspan="1">16</td>
<td id="E610A29A2D3E2B91BF7089E55ED8740B" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Grooves for reception of procoxae ending far before the anterior margin of mesocoxal cavities (Fig.
<figureCitation id="23599DCF47D9B9E5F764735E1CBDD807" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8C</figureCitation>
). Mesoventral plate elongate
</td>
<td id="BF787CD77DBD2730BA078A9E78497083" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="AF23BD3EF8E9B810993A2B0B1AA8FB20" authorityName="d'Orchymont" authorityYear="1925" class="Insecta" family="Hydrophilidae" genus="Gillisius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gillisius" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="02D51DEEE95CD7879630D69833EEC945" italics="true" pageId="0" pageNumber="35">Gillisius</emphasis>
</taxonomicName>
d'Orchymont (part)*
</td>
</tr>
<tr id="60FC3EAF955AF3365660638023F851E9" pageId="0" pageNumber="35">
<td id="87E040A1D50EA2146A30122027365FC8" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="E9BF49694020D3A51E627F5564B6AD67" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Grooves for reception of proxocae reaching nearly the mesocoxal cavities (Fig.
<figureCitation id="9420FCE6B6871DEABABCFA1DFCEBA44E" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7C, D</figureCitation>
). Mesoventral elevation approximately as wide as long
</td>
<td id="0B295CEC793BF1874C33E6F65734F5EC" colspan="1" pageId="0" pageNumber="35" rowspan="1">17</td>
</tr>
<tr id="24D65DCFF76B25C69F00F12CADDF5057" pageId="0" pageNumber="35">
<td id="17507B06446D991D41C9D9649C8390D9" colspan="1" pageId="0" pageNumber="35" rowspan="1">17</td>
<td id="C7079EB1BEF26BD09CF15E37E8E780FB" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral elevation nearly semi-elliptical (Fig.
<figureCitation id="A83A84F82B5CBA72A486B609CBF24EE9" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7C</figureCitation>
), with wide marginal rim. Postcoxal ridges on the metaventrite meeting mesally and forming a short median longitudinal ridge. Metatibiae densely pubescent ventrally (Fig.
<figureCitation id="7715228D2457E66E4E7B1378755E5E86" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8H</figureCitation>
). Large species: 2.5-3.3 mm
</td>
<td id="A09E7BCE4E066AD0C20BB8026225C47F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="2AE6B4CBBE8FF0FA229043BBDCB994FF" authorityName="Hansen" authorityYear="1990" class="Insecta" family="Hydrophilidae" genus="Australocyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Australocyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="75FCC84F295DF3F828782ACF62E5B927" italics="true" pageId="0" pageNumber="35">Australocyon</emphasis>
</taxonomicName>
Hansen
</td>
</tr>
<tr id="AB575307A560952D8DA228004F827A1F" pageId="0" pageNumber="35">
<td id="C4BB9BDED6B6D32F5644D4A4C1F8AF9C" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="DA759729EA97ADE2065E7365005C1047" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral elevation more less pentagonal, without any marginal rim (Fig.
<figureCitation id="14AE706D2D43B68A2661BE7A92DEC4B2" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7D</figureCitation>
). Postcoxal ridges mesally bending posteriad, remaining separate, forming two short median longitudinal ridges (in one species largely obsolete). Metatibie without dense ventral pubescence. Medium sized to tiny species: 2.0-2.9 mm
</td>
<td id="7C9BD64761CFA2528418BF1AD68BB0EE" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="6BC328EAB53CDBC56C7F101DAAB6E402" authorityName="Sato" authorityYear="1963" class="Insecta" family="Hydrophilidae" genus="Nipponocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nipponocercyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="501C6664E6B3537A4A2416FB258FA065" italics="true" pageId="0" pageNumber="35">Nipponocercyon</emphasis>
</taxonomicName>
<normalizedToken id="1BE4DF8FEEF2872A5FD404A5836A399D" originalValue="Satô">Sato</normalizedToken>
</td>
</tr>
<tr id="E88523368D1ADE9B142BAFD7C4713148" pageId="0" pageNumber="35">
<td id="44DCCFD2F4B2B0E9CC31E1C965F7A0C8" colspan="1" pageId="0" pageNumber="35" rowspan="1">18</td>
<td id="674B2737B06D0425CAAB9D1512605ACF" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Abdominal ventrite 1 without median carina. Mesoventral elevation narrowly laminar (Fig.
<figureCitation id="83C5BA785C1C0908F49FCFC684AA4A8B" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7E</figureCitation>
)
</td>
<td id="4EB522501C1A8E3536FA766DE9E5495A" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="5C34C6CF4D520D7D0971FEFF5B6F33D8" authorityName="d'Orchymont" authorityYear="1919" class="Insecta" family="Hydrophilidae" genus="Cycreon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cycreon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="A3673406C98CAF69BF3600D1C9CC8031" italics="true" pageId="0" pageNumber="35">Cycreon</emphasis>
</taxonomicName>
d'Orchymont
</td>
</tr>
<tr id="A3DA92A73C5153AD482D9EA2684FCAD9" pageId="0" pageNumber="35">
<td id="30A4A4C902758197141BFBC5007C0A29" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="60583448C46F6A54BAE07E6EA72C710A" colspan="1" pageId="0" pageNumber="35" rowspan="1">Abdominal ventrite 1 carinate medially. Mesoventral elevation in form of a lamina or an elongate plate</td>
<td id="921E7D9EA44409C721D05DD8A7250951" colspan="1" pageId="0" pageNumber="35" rowspan="1">19</td>
</tr>
<tr id="083A1EA4768747873B2222AE2407C9B4" pageId="0" pageNumber="35">
<td id="93BC14DA2CD2808FBA50AF6CE1BB2945" colspan="1" pageId="0" pageNumber="35" rowspan="1">19</td>
<td id="5D4E5D4F12B5394EEE2EA33688CF2641" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Ventral face of meso- and metatibiae with dense, long pubescence. Ventral morphology similar to Figure
<figureCitation id="A920BC60533A9D2B35607F7EE55C647A" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Ventral view of thorax of eastern Palaearctic and Oriental Megasternini. A. Bolbonotum sp. B. Kahanga inconspicua, holotype. C. Australocyon sp. (A. pilocnemoides group). D. Nipponocercyon shibatai. E. Cycreon floricola. F. Pilocnema sp." figureDoi="10.3897/dez.67.50078.figure7" httpUri="https://binary.pensoft.net/fig/408733" pageId="0" pageNumber="35">7F</figureCitation>
</td>
<td id="6B41F9CB266040CEAD15E31CDB919BC3" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="AA7682EE8BA2D63F206668D45F36C97F" authorityName="Hansen" authorityYear="1990" class="Insecta" family="Hydrophilidae" genus="Pilocnema" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pilocnema" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="20E52BE5D71734C30D341FC071FF6B1D" italics="true" pageId="0" pageNumber="35">Pilocnema</emphasis>
</taxonomicName>
Hansen
</td>
</tr>
<tr id="BC06877BC6F9CEA35449B7B063D6997B" pageId="0" pageNumber="35">
<td id="D12F438D169B2FC73E800312ABF96534" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="740114CB80585C3DCA0F4BC913A38418" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Ventral face of meso- and metatibiae never densely pubescent, at most with sparse short setae. Ventral morphology similar to Figures
<figureCitation id="9059051B3389E2E62188E7A0C51C4927" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">2</figureCitation>
,
<figureCitation id="26D88AB1948162D44C34994489601FA2" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Morphology of Himalcercyon franzi sp. nov. A. Mentum. B. Prosternum and hypomeron. C. Mesoventral elevation. D. Antenna. E. Mesotarsus, ventral view. F. Median portion of metaventrite. G. Elytral punctation. H. Elytral apex." figureDoi="10.3897/dez.67.50078.figure3" httpUri="https://binary.pensoft.net/fig/408729" pageId="0" pageNumber="35">3</figureCitation>
, and
<figureCitation id="E7480D6C027837283DB5862B8F117AF6" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8A, B</figureCitation>
</td>
<td id="6EFF556B7BB998B109D7B001BD7504ED" colspan="1" pageId="0" pageNumber="35" rowspan="1">20</td>
</tr>
<tr id="F061C408550C2D4C083764F7C053313C" pageId="0" pageNumber="35">
<td id="DFC65ECB02D22D69BEA764AC169151FA" colspan="1" pageId="0" pageNumber="35" rowspan="1">20</td>
<td id="C14D6213A363403B9C7FC972F2DF84A1" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral elevation laminar or forming an oval elongate plate; posterior part of the plate rounded or acute (as in Fig.
<figureCitation id="5A6247749381EF68EC3F2031AAE15395" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8A, B</figureCitation>
)
</td>
<td id="5907EA09D7021B51E4347B38C692B45C" colspan="1" pageId="0" pageNumber="35" rowspan="1">21</td>
</tr>
<tr id="FA2BB948890E293B69FCB6987EDE1EFE" pageId="0" pageNumber="35">
<td id="578EB90ED884BCF0F02597059FA4D73C" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="CD0E63EE4E5CAFA8D042E63E4EAA2494" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral elevation elongate, but sharply cut off posteriorly, contacting metaventrite more or less in a straight line (as in Figs
<figureCitation id="545362F83D309E52A728327E2E2D223A" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">2F</figureCitation>
,
<figureCitation id="CD35748A4237D982843A6079AF090488" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8C</figureCitation>
)
</td>
<td id="E85BC9E6B152B9A52FF0D1E62BC52D86" colspan="1" pageId="0" pageNumber="35" rowspan="1">22</td>
</tr>
<tr id="D0E199889F065A4269007C9B92E12E8B" pageId="0" pageNumber="35">
<td id="C110A28CFC768763BAD6F0B5FC37E11E" colspan="1" pageId="0" pageNumber="35" rowspan="1">21</td>
<td id="6574E39BE2C738697B45F65C825D158C" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum with a pair of transverse ridges partly delimiting prosternal process (Fig.
<figureCitation id="50CDD61FBC6D4BF690961E131E45F1EA" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8A</figureCitation>
)
</td>
<td id="CABB14D5746158A0DC6858AA1098006D" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="835E2EEB834D56A01202F5D35CE5C0C7" authorityName="d'Orchymont" authorityYear="1926" class="Insecta" family="Hydrophilidae" genus="Pseudocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocercyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="F21872DD342B4E9D8B016E3A99821854" italics="true" pageId="0" pageNumber="35">Pseudocercyon</emphasis>
</taxonomicName>
d'Orchymont
</td>
</tr>
<tr id="2F8D51945E8FA4DB7EE38E22ACA2D8AC" pageId="0" pageNumber="35">
<td id="3A9E2BE21C74EB754C59A37E8C907B9C" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="A6DE3A15C0072BEC5A8805D36AA8D86F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Median portion of prosternum without such ridges, only simply carinate (Fig.
<figureCitation id="06B5F3DAABF1860649E4BF28B7603FAE" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8B</figureCitation>
)
</td>
<td id="865FF4ECC910E2CAABFECB711949FD6F" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="A7DB929FAD7B18BD0D42CF9803E25AE7" authorityName="Leach" authorityYear="1817" class="Insecta" family="Hydrophilidae" genus="Cercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cercyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="6777D3F6A9A03E0D80642FA9B897B7A0" italics="true" pageId="0" pageNumber="35">Cercyon</emphasis>
</taxonomicName>
Leach
</td>
</tr>
<tr id="3758F0B349D76A173C102F19BD0815C2" pageId="0" pageNumber="35">
<td id="A563A95BE4818982B666B838A171FF64" colspan="1" pageId="0" pageNumber="35" rowspan="1">22</td>
<td id="5BC3E7BF221098BABD22F085B63E7C72" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral elevation arrowhead-shaped, with lateral angulate lobes (Figs
<figureCitation id="8ACB799F0A96331AE2F8AA5D887CA62D" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Morphology of Himalcercyon mirus (Hebauer, 2002). A. Complete ventral view. B. Mentum. C. Prosternal carina in ventrolateral view. D. Prosternum and hypomeron. E. Meso- and metaventrite. F. Details of mesoventral plate." figureDoi="10.3897/dez.67.50078.figure2" httpUri="https://binary.pensoft.net/fig/408728" pageId="0" pageNumber="35">2F</figureCitation>
,
<figureCitation id="A7D06FAD8564C15016EB76167E4A03CB" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Morphology of Himalcercyon franzi sp. nov. A. Mentum. B. Prosternum and hypomeron. C. Mesoventral elevation. D. Antenna. E. Mesotarsus, ventral view. F. Median portion of metaventrite. G. Elytral punctation. H. Elytral apex." figureDoi="10.3897/dez.67.50078.figure3" httpUri="https://binary.pensoft.net/fig/408729" pageId="0" pageNumber="35">3C</figureCitation>
)
</td>
<td id="545C94B877C77F43094EC1A3349E3AB8" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="40C18DFEF4B864ACE9625375ACF4C7E9" authorityName="Hebauer" authorityYear="2002" class="Insecta" family="Hydrophilidae" genus="Himalcercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Himalcercyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="C8158B17D4A9A65A68C28507731271E4" italics="true" pageId="0" pageNumber="35">Himalcercyon</emphasis>
</taxonomicName>
Hebauer
</td>
</tr>
<tr id="47D9049FF25B5B61DA9E80FF973955AC" pageId="0" pageNumber="35">
<td id="61EB7A7FD0414F70E894CC7962947C51" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="95ADD736ACEB8B9FDC04905A9F7F2A3D" colspan="1" pageId="0" pageNumber="35" rowspan="1">
Mesoventral elevation elongate oval (as in Fig.
<figureCitation id="11A5C7807348DD93D48B3FAD7BEFB532" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Ventral view of thorax and additional diagnostic characters of eastern Palaearctic and Oriental genera of the Megasternini. A-C. Ventral view: A. Pseudocercyon andrewesi. B. Cercyon sp. C. Gillisius madurensis, holotype. D-H. Other characters: D. Cryptopleurum coomani, mentum. E. Emmidolium excavatum, pronotum. F. Bolbonotum sp., base of elytra. G. Kahanga inconspicua, holotype, base of elytra. H. Australocyon sp. (A. pilocnemoides group), hind femur." figureDoi="10.3897/dez.67.50078.figure8" httpUri="https://binary.pensoft.net/fig/408734" pageId="0" pageNumber="35">8C</figureCitation>
); if small lateral lobes are present, they are below the plate
</td>
<td id="F41DB20C3EB691E24A56269C78F630FD" colspan="1" pageId="0" pageNumber="35" rowspan="1">23</td>
</tr>
<tr id="DA8472C0BC81FAC1BA0A6603DC1BB5C5" pageId="0" pageNumber="35">
<td id="3843E8FA3FC1B142A12563C8E4CAEFBA" colspan="1" pageId="0" pageNumber="35" rowspan="1">23</td>
<td id="F9E45EDEE2581BCC923FD40EB44C1E11" colspan="1" pageId="0" pageNumber="35" rowspan="1">India, continental Southeast Asia and China.</td>
<td id="0880CDEBCF3C8D0EEBDE21AA6C17B38C" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="904FF50C23C8C2B0CBC8D68EB9EDDE2C" authorityName="d'Orchymont" authorityYear="1925" class="Insecta" family="Hydrophilidae" genus="Gillisius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gillisius" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="F8CE8B5B7B5DDE95A7C1A67C03531EF1" italics="true" pageId="0" pageNumber="35">Gillisius</emphasis>
</taxonomicName>
d'Orchymont (part)
</td>
</tr>
<tr id="F6B71794FF98FCCB37F0DCDEC26A7CD0" pageId="0" pageNumber="35">
<td id="FFF0DB479BAD2846CEA9874F8A7A6DDF" colspan="1" pageId="0" pageNumber="35" rowspan="1">-</td>
<td id="AC83863EA55E58A85C1720AA23EA918E" colspan="1" pageId="0" pageNumber="35" rowspan="1">Islands of the Malay Archipelago.</td>
<td id="1E202F27989B2089A4AE2CE999AC79B0" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="22D3A6B620C654D88031AE5A199A1DA4" authorityName="Mulsant" authorityYear="1844" class="Insecta" family="Hydrophilidae" genus="Pelosoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pelosoma" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="E7205C542B1436E33B81740C6F44B843" italics="true" pageId="0" pageNumber="35">Pelosoma</emphasis>
</taxonomicName>
Mulsant*
</td>
</tr>
</table>
</paragraph>
<paragraph id="5614DC26D3A07176621163579FD044C6" pageId="0" pageNumber="35">
<tableNote id="9A0DDFE8F7F3286003ACE2D16E7591D9" pageId="0" pageNumber="35">
* the type species,
<emphasis id="84B095D51F183A84816F0ED2DAC13F12" italics="true" pageId="0" pageNumber="35">G. madurensis</emphasis>
<normalizedToken id="F816B3F2324FFD3490885FC3D5AB9894" originalValue="dOrchymont">d'Orchymont</normalizedToken>
, 1925, keys out here.
</tableNote>
</paragraph>
<paragraph id="7C51A1A899EE353B3D9F0CB271DB3E99" pageId="0" pageNumber="35">
<tableNote id="20F2D97EF32C74F45BC03769C134F591" pageId="0" pageNumber="35">
* the status of
<emphasis id="B6092E0457CE57D9469A2C303048CB71" italics="true" pageId="0" pageNumber="35">Gillisius</emphasis>
and Asian Pelosoma is unclear.
</tableNote>
</paragraph>
<caption id="61D9CFE9036C7BD84AA79ACD98A3B79A" doi="10.3897/dez.67.50078.figure5" httpUri="https://binary.pensoft.net/fig/408731" pageId="0" pageNumber="35" start="Figure 5" startId="F5">
<paragraph id="46927491ADC2434F274DA324AB3D8A69" pageId="0" pageNumber="35">
<emphasis id="D6D78AB2FBE16F332D2D97ACE1CD6DFD" bold="true" pageId="0" pageNumber="35">Figure 5.</emphasis>
Ventral view of thorax of eastern Palaearctic and Oriental genera of the
<taxonomicName id="0329D4D4BCE878C5C972FB368A7CF345" authorityName="Mulsant" authorityYear="1844" lsidName="" pageId="0" pageNumber="35" rank="tribe" tribe="Megasternini">Megasternini</taxonomicName>
.
<emphasis id="85F5605F02388DA7A0CF39E25BE18120" bold="true" pageId="0" pageNumber="35">A.</emphasis>
<taxonomicName id="1350887C048F0FCC03393C9BAE3ABB5C" authorityName="Motschulsky" authorityYear="1863" class="Insecta" family="Hydrophilidae" genus="Cryptopleurum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptopleurum ferrugineum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="ferrugineum">
<emphasis id="D265AF85B6DB83EB423CD7995003A3CF" italics="true" pageId="0" pageNumber="35">Cryptopleurum ferrugineum</emphasis>
</taxonomicName>
.
<emphasis id="0ED0AA40E7C91B690BEAD7F7027204D5" bold="true" pageId="0" pageNumber="35">B.</emphasis>
<taxonomicName id="7ED374ACE924277A2E82C744B435F983" baseAuthorityName="Marsham" baseAuthorityYear="1802" class="Insecta" family="Hydrophilidae" genus="Megasternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megasternum concinnum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="concinnum">
<emphasis id="D77E2F9C966FA81B7CC73168A314F201" italics="true" pageId="0" pageNumber="35">Megasternum concinnum</emphasis>
</taxonomicName>
.
<emphasis id="A21458D238F319B56DA97A90C6FC9B2F" bold="true" pageId="0" pageNumber="35">C.</emphasis>
<taxonomicName id="2D5E2421D182D2B66FEBC3E8EC7EEF6B" authorityName="Orchymont" authorityYear="1941" class="Insecta" family="Hydrophilidae" genus="Pacrillum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pacrillum manchuricum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="manchuricum">
<emphasis id="92020368766826BF262365833AF3D701" italics="true" pageId="0" pageNumber="35">Pacrillum manchuricum</emphasis>
</taxonomicName>
.
<emphasis id="F1F1430076226C122000C7EB7D2F787E" bold="true" pageId="0" pageNumber="35">D.</emphasis>
<taxonomicName id="E47DB9B54DE6B0F4D92A76F74C28D213" authorityName="Motschulsky" authorityYear="1863" class="Insecta" family="Hydrophilidae" genus="Pachysternum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pachysternum nigrovittatum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="nigrovittatum">
<emphasis id="74A90C2436AAA7CE1E4E2652D16EE2A5" italics="true" pageId="0" pageNumber="35">Pachysternum nigrovittatum</emphasis>
</taxonomicName>
.
<emphasis id="208051D6BD3EF4C01AF75DE400A7218A" bold="true" pageId="0" pageNumber="35">E.</emphasis>
<taxonomicName id="311D6AA008D317A9FFBE692313A74585" authorityName="Orchymont" authorityYear="1925" class="Insecta" family="Hydrophilidae" genus="Peltocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Peltocercyon coomani" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="coomani">
<emphasis id="F2F528128C884BE7D0A4483A5DB075D0" italics="true" pageId="0" pageNumber="35">Peltocercyon coomani</emphasis>
</taxonomicName>
.
<emphasis id="3C156E6AE5B72F7E1F8B60B66DB46B5A" bold="true" pageId="0" pageNumber="35">F.</emphasis>
<taxonomicName id="930259C9F88B574334D6E8C472BD6FA0" baseAuthorityName="Orchymont" baseAuthorityYear="1914" class="Insecta" family="Hydrophilidae" genus="Armostus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Armostus schenklingi" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="species" species="schenklingi">
<emphasis id="112B56E6B4FAB47B6BCCDB37F5F9C526" italics="true" pageId="0" pageNumber="35">Armostus schenklingi</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<caption id="28E98DED638397E743FA97026DE60011" ID-Table-UUID="28E98DED638397E743FA97026DE60011" httpUri="http://table.plazi.org/id/28E98DED638397E743FA97026DE60011" pageId="0" pageNumber="35" start="Table 1" startId="T1">
<paragraph id="66902CF365202667C3B212A6C9ED7140" pageId="0" pageNumber="35">
<emphasis id="3FA615B2DCA958465E09EBD344F95B68" bold="true" pageId="0" pageNumber="35">Table 1.</emphasis>
List of Eastern Palaearctic and Oriental general of the
<taxonomicName id="12B8C06756104E034BB0ADC92D7455FE" authorityName="Mulsant" authorityYear="1844" lsidName="" pageId="0" pageNumber="35" rank="tribe" tribe="Megasternini">Megasternini</taxonomicName>
, with number of described species and references to the most important keys or taxonomic treatments.
</paragraph>
</caption>
<paragraph id="E426C464E1B010D8A2195FA0C4E3A5B4" pageId="0" pageNumber="35">
<table id="6D069C926B6C84BC946C2A1E35EC07D0" pageId="0" pageNumber="35">
<tr id="5A0D59CFD35E25A4F85AF26A97D724B7" pageId="0" pageNumber="35">
<th id="51985047678CDD737AFAE6B88FAFF871" colspan="1" pageId="0" pageNumber="35" rowspan="1">Genus</th>
<th id="2562082B212F1C84FB8891E756C216C8" colspan="1" pageId="0" pageNumber="35" rowspan="1">Described species</th>
<th id="36CD301552166F9B08404E3886005EA7" colspan="1" pageId="0" pageNumber="35" rowspan="1">Keys or original descriptions</th>
</tr>
<tr id="C04CB232FDC70405577BD03557DD01FC" pageId="0" pageNumber="35">
<td id="946B6384257C59B8322A2C342E3CD9F3" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="FF69E7E95433F922EAFCD77327BE5B3A" authorityName="Sharp" authorityYear="1890" class="Insecta" family="Hydrophilidae" genus="Armostus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Armostus" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="3D6FAC3227D9993A327BCF16EC443A60" italics="true" pageId="0" pageNumber="35">Armostus</emphasis>
</taxonomicName>
</td>
<td id="9CA743A14A6959DA382F0AB25AAD5463" colspan="1" pageId="0" pageNumber="35" rowspan="1">11</td>
<td id="F564AD9164C1A53CB42B96E4A2BFB1F6" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<bibRefCitation id="5D5B832D5CC172F86935D5FCE59406D8" author="d'Orchymont, A" journalOrPublisher="Bulletin du Musee Royal d'Histoire Naturelle de Belgique" pageId="0" pageNumber="35" pagination="1 - 20" refId="B12" refString="d'Orchymont, A, 1942. Palpicornia (Coleoptera). Notes diverses et especes nouvelles. III. Bulletin du Musee Royal d'Histoire Naturelle de Belgique 18 (26): 1 - 20" title="Palpicornia (Coleoptera). Notes diverses et especes nouvelles. III." volume="18" year="1942">
<normalizedToken id="6FFE4A5195E72F240A9910E243F5FE15" originalValue="dOrchymont">d'Orchymont</normalizedToken>
1942
</bibRefCitation>
;
<bibRefCitation id="ACB86F4396A9BF5EE8F7D991D881617D" author="Hebauer, F" journalOrPublisher="Acta Coleopterologica" pageId="0" pageNumber="35" pagination="3 - 72" refId="B27" refString="Hebauer, F, 2002a. Hydrophilidae of northern India and southern Himalaya (Coleoptera: Hydrophilidae). Acta Coleopterologica 18 (1): 3 - 72" title="Hydrophilidae of northern India and southern Himalaya (Coleoptera: Hydrophilidae)." volume="18" year="2002 a">Hebauer 2002a</bibRefCitation>
;
<bibRefCitation id="6AB3077F1B5C92D4BCAACF61E091BA11" DOI="https://doi.org/10.1649/840.1" author="Hoshina, H" journalOrPublisher="The Coleopterists Bulletin" pageId="0" pageNumber="35" pagination="95 - 104" refId="B38" refString="Hoshina, H, Sato, M, 2006. A taxonomic study of the genus Armostus (Coleoptera: Hydrophilidae) from Japan. The Coleopterists Bulletin 60: 95 - 104, DOI: https://doi.org/10.1649/840.1" title="A taxonomic study of the genus Armostus (Coleoptera: Hydrophilidae) from Japan." url="https://doi.org/10.1649/840.1" volume="60" year="2006">
Hoshina and
<normalizedToken id="2356B73F59ABCA153A05E634A5AA7545" originalValue="Satô">Sato</normalizedToken>
2006
</bibRefCitation>
</td>
</tr>
<tr id="63C6F663298C447BE4AE9A013283EE29" pageId="0" pageNumber="35">
<td id="F5A1B665C6417400F8FB2413830EE31B" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="DFE65E19E013B3F8BD856AE8791B862B" authorityName="Hansen" authorityYear="1990" class="Insecta" family="Hydrophilidae" genus="Australocyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Australocyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="5BE2CD6777E270AC9C19CF48CA1E9430" italics="true" pageId="0" pageNumber="35">Australocyon</emphasis>
</taxonomicName>
</td>
<td id="F34A5CF41C18A4A1911D593E75565B30" colspan="1" pageId="0" pageNumber="35" rowspan="1">7</td>
<td id="0CEA7E0F9CD02634FAE0173F4419E89A" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<bibRefCitation id="9C0CDE49249FB184F31CBB464C607E6D" author="Hansen, M" editor="Cuccodoro, G" journalOrPublisher="Memoirs of Entomology International Associate Publisher" pageId="0" pageNumber="35" pagination="53 - 84" refId="B26" refString="Hansen, M, 2003. Discovery of Australocyon Hansen and Pilocnema Hansen (Coleoptera, Hydrophilidae) outside the Australian region. In: Cuccodoro, G, Leschen, RAB, Eds., Systematics of Coleoptera: papers celebrating the retirement of Ivan Loebl. Memoirs of Entomology International Associate Publisher 17: 53 - 84" title="Discovery of Australocyon Hansen and Pilocnema Hansen (Coleoptera, Hydrophilidae) outside the Australian region." volume="17" volumeTitle="Systematics of Coleoptera: papers celebrating the retirement of Ivan Loebl." year="2003">Hansen 2003</bibRefCitation>
;
<bibRefCitation id="292837D186FA383C2BF539F6B911EBC2" DOI="https://doi.org/10.11646/zootaxa.3219.1.1" author="Fikacek, M" journalOrPublisher="Zootaxa" pageId="0" pageNumber="35" pagination="1 - 53" refId="B16" refString="Fikacek, M, Jia, F-L, Prokin, A, 2012a. A review of the Asian species of the genus Pachysternum (Coleoptera: Hydrophilidae: Sphaeridiinae). Zootaxa 3219 (1): 1 - 53, DOI: https://doi.org/10.11646/zootaxa.3219.1.1" title="A review of the Asian species of the genus Pachysternum (Coleoptera: Hydrophilidae: Sphaeridiinae)." url="https://doi.org/10.11646/zootaxa.3219.1.1" volume="3219" year="2012 a">
<normalizedToken id="083DECD694796E6A83E70BFAA51338D8" originalValue="Fikáček">Fikacek</normalizedToken>
et al. 2012
</bibRefCitation>
</td>
</tr>
<tr id="5B843D5CF6AAD1D4F3CF50AF26F5B610" pageId="0" pageNumber="35">
<td id="8F9CFBECCA61D4FF4E5CE32D682FCF49" colspan="1" pageId="0" pageNumber="35" rowspan="1">
<taxonomicName id="13D1B0B17E1031E2E792C2A6EACF9623" authorityName="Hansen" authorityYear="1999" class="Insecta" family="Hydrophilidae" genus="Bolbonotum" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Bolbonotum" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="67F55F88CFFEC03219686EB5978B95D6" italics="true" pageId="0" pageNumber="35">Bolbonotum</emphasis>
</taxonomicName>
</td>
<td id="EA33E7C9FE2B906528208896BB26DBBA" colspan="1" pageId="0" pageNumber="35" rowspan="1">3</td>
<td id="ACF9DBB38FB481CA1627FF8AF81D1055" colspan="1" pageId="0" pageNumber="35" rowspan="1">
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<td id="E1F7267FFD39F0F641D4D029360F99D1" colspan="1" pageId="0" pageNumber="35" rowspan="1">this paper</td>
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<taxonomicName id="85ADCF7A5133D0D4D381901E3718C477" authorityName="Hansen" authorityYear="1999" class="Insecta" family="Hydrophilidae" genus="Kahanga" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Kahanga" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="1B6311F0E7C780AF2ADC33CC05D922B2" italics="true" pageId="0" pageNumber="35">Kahanga</emphasis>
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<bibRefCitation id="6A73AFA86BDD2A9E0A4D8BF27C5CCDD9" author="Hansen, M" editor="Cuccodoro, G" journalOrPublisher="Memoirs of Entomology International Associate Publisher" pageId="0" pageNumber="35" pagination="53 - 84" refId="B26" refString="Hansen, M, 2003. Discovery of Australocyon Hansen and Pilocnema Hansen (Coleoptera, Hydrophilidae) outside the Australian region. In: Cuccodoro, G, Leschen, RAB, Eds., Systematics of Coleoptera: papers celebrating the retirement of Ivan Loebl. Memoirs of Entomology International Associate Publisher 17: 53 - 84" title="Discovery of Australocyon Hansen and Pilocnema Hansen (Coleoptera, Hydrophilidae) outside the Australian region." volume="17" volumeTitle="Systematics of Coleoptera: papers celebrating the retirement of Ivan Loebl." year="2003">Hansen 2003</bibRefCitation>
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<taxonomicName id="A0459246C4EC5DC2795540AA2D2C11E1" authorityName="d'Orchymont" authorityYear="1926" class="Insecta" family="Hydrophilidae" genus="Pseudocercyon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocercyon" order="Coleoptera" pageId="0" pageNumber="35" phylum="Arthropoda" rank="genus">
<emphasis id="E3A641E07965DCAD2893B6857E1F9A5A" italics="true" pageId="0" pageNumber="35">Pseudocercyon</emphasis>
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<bibRefCitation id="891AEBB24556E7F6C0DDA86D2888A659" author="d'Orchymont, A" journalOrPublisher="Bulletin et Annales de la Societe Entomologique de Belgique" pageId="0" pageNumber="35" pagination="201 - 248" refId="B9" refString="d'Orchymont, A, 1926. Contribution a l'etude des hydrophilides VI. Bulletin et Annales de la Societe Entomologique de Belgique 66: 201 - 248" title="Contribution a l'etude des hydrophilides VI." volume="66" year="1926">
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1926
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<paragraph id="883DF9FB9C92832188398AE7E2EA77A7" pageId="0" pageNumber="35">New replacement name</paragraph>
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