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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1193.116087" ID-Pensoft-Pub="1313-2970-1193-95" ID-Pensoft-UUID="EA19A2400D965CA3AB43B8CCC821462A" ID-ZooBank="1457DD9918B0413CA0D0FBD11878A45F" ModsDocID="1313-2970-1193-95" checkinTime="1709371463725" checkinUser="pensoft" docAuthor="Nguyen, Lien Thi Phuong, Nguyen, Anh D. &amp; Dang, Hoa T." docDate="2024" docId="57F415B0DF6650FA89D097BC0A3AC0E9" docLanguage="en" docName="ZooKeys 1193: 95-110" docOrigin="ZooKeys 1193" docPubDate="2024-03-01" docSource="http://dx.doi.org/10.3897/zookeys.1193.116087" docTitle="Orancistrocerus thanhnhat Nguyen &amp; Nguyen &amp; Dang 2024, sp. nov." docType="treatment" docUuid="B92020E8-DE78-43BF-8050-E4359442C3D2" docUuidSource="ZooBank" docVersion="1" id="EA19A2400D965CA3AB43B8CCC821462A" lastPageNumber="95" masterDocId="EA19A2400D965CA3AB43B8CCC821462A" masterDocTitle="The solitary wasp genus Orancistrocerus from Vietnam, with descriptions of two new species (Hymenoptera, Vespidae, Eumeninae)" masterLastPageNumber="110" masterPageNumber="95" pageNumber="95" updateTime="1709371463725" updateUser="pensoft">
<mods:mods id="010D399B3BB230F8930651D5ADA084D8" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="3DB0E9C2DC7E7E76B14F9B1BD7603217">
<mods:title id="0018A5BD00C6631197931473094AA90A">The solitary wasp genus Orancistrocerus from Vietnam, with descriptions of two new species (Hymenoptera, Vespidae, Eumeninae)</mods:title>
</mods:titleInfo>
<mods:name id="C0E2D06B131C5155560F31730A90A1E4" type="personal">
<mods:role id="55D94CDA680DC9B0CFC4109A8AEAB337">
<mods:roleTerm id="F5EBCE0BA4824C3E4B81BBABFA75D17F">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="1C28C1E7DF74A07E03BF88A1A6E5CD0B">Nguyen, Lien Thi Phuong</mods:namePart>
<mods:nameIdentifier id="0E01B3759205BD953BCEDEE11035D973" type="ORCID">https://orcid.org/0000-0003-3527-9577</mods:nameIdentifier>
<mods:affiliation id="4F5BA9B4F94E89060AD9A1B9BB50893F">Insect Ecology Department, Institute of Ecology &amp; Biological Resources (IEBR), Vietnam Academy of Science &amp; Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam &amp; Graduate University of Science and Technology, Vietnam Academy of Science &amp; Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam</mods:affiliation>
<mods:nameIdentifier id="5D2D99A8E56DB50FBFB7E65E656AAF72" type="email">phuonglientit@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name id="9DA37B8011B9430E7AA368D95EE44816" type="personal">
<mods:role id="931FF3E80A1491A15C3668B30108E006">
<mods:roleTerm id="0587CBE051C36961735A3342A600F389">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="03A1A2B6F8512E6A65FEA6E446BA627F">Nguyen, Anh D.</mods:namePart>
<mods:nameIdentifier id="548F5EFB09553811AAC06797E6B16831" type="ORCID">https://orcid.org/0000-0001-9273-0040</mods:nameIdentifier>
<mods:affiliation id="2FA4E48D4C2753850BE752AC41C97C0E">Insect Ecology Department, Institute of Ecology &amp; Biological Resources (IEBR), Vietnam Academy of Science &amp; Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam &amp; Graduate University of Science and Technology, Vietnam Academy of Science &amp; Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam</mods:affiliation>
</mods:name>
<mods:name id="D7097F1598E1A1271651FC8CC4B31FDA" type="personal">
<mods:role id="00074181A0314FE00935A8D0B484E71B">
<mods:roleTerm id="C9F1547563D734CDD5E13A1F8E7EF2D4">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="62E9CEA7C5DBE0F4C0C90C8C152FB3C9">Dang, Hoa T.</mods:namePart>
<mods:nameIdentifier id="60093B9D84D7A1E63F9D8A74345B04EE" type="ORCID">https://orcid.org/0000-0002-8312-2825</mods:nameIdentifier>
<mods:affiliation id="3CB46659B3D6CD7FC233910FE17496B0">Insect Ecology Department, Institute of Ecology &amp; Biological Resources (IEBR), Vietnam Academy of Science &amp; Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam &amp; Graduate University of Science and Technology, Vietnam Academy of Science &amp; Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam</mods:affiliation>
</mods:name>
<mods:typeOfResource id="6B0756D13CAFD4222E73673662713332">text</mods:typeOfResource>
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<mods:title id="6D912471189FEF370BE51C66B2BB6BA0">ZooKeys</mods:title>
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<mods:part id="7D8FBFD2F043D13B8DEFFADFCCD7F587">
<mods:date id="FCE53BBE452CBDEF9EE0D7DC7647AC8C">2024</mods:date>
<mods:detail id="44200F757E03724B032D9F8D55C02AE5" type="pubDate">
<mods:number id="2F22B1B48E550549907702E837011256">2024-03-01</mods:number>
</mods:detail>
<mods:detail id="5D09A932CFFADF30043A9F133956EF5C" type="volume">
<mods:number id="ACA16DCB5F8F60565BF20992854433EA">1193</mods:number>
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<mods:start id="CE835BA4CBFC59AD2F6E20727E51474B">95</mods:start>
<mods:end id="80F6E2BF47589DB8C003997B392414D9">110</mods:end>
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<mods:url id="388CAF8E8FCCC95E0E4EF383ABFE09A3">http://dx.doi.org/10.3897/zookeys.1193.116087</mods:url>
</mods:location>
<mods:classification id="3A6FF1306DA31E7EBCD0622753130214">journal article</mods:classification>
<mods:identifier id="CC1EFD75F2052ACCD02B2E2AA82F5B05" type="DOI">http://dx.doi.org/10.3897/zookeys.1193.116087</mods:identifier>
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<mods:identifier id="9D3C2190333BD965F941F8E553FAED68" type="Pensoft-UUID">EA19A2400D965CA3AB43B8CCC821462A</mods:identifier>
</mods:mods>
<treatment id="57F415B0DF6650FA89D097BC0A3AC0E9" LSID="urn:lsid:zoobank.org:act:B92020E8-DE78-43BF-8050-E4359442C3D2" httpUri="http://treatment.plazi.org/id/57F415B0DF6650FA89D097BC0A3AC0E9" lastPageNumber="95" pageId="0" pageNumber="95">
<subSubSection id="DBDA1B6C2C83E5D6F8558DDAC972415D" pageId="0" pageNumber="95" type="nomenclature">
<paragraph id="602CDE3863659BC41EAF0CB328C1693C" pageId="0" pageNumber="95">
<taxonomicName id="F82412912C03E28328D88168038853CD" LSID="https://zoobank.org/B92020E8-DE78-43BF-8050-E4359442C3D2" authority="Nguyen &amp; Nguyen &amp; Dang, 2024" authorityName="Nguyen &amp; Nguyen &amp; Dang" authorityYear="2024" class="Insecta" family="Vespidae" genus="Orancistrocerus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Orancistrocerus thanhnhat" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="thanhnhat" status="sp. nov.">Orancistrocerus thanhnhat</taxonomicName>
<taxonomicNameLabel id="52AD743F4A4264B00DA7D4BAD60AA681" pageId="0" pageNumber="95">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="C4C7449CC89F52AA69033D18E724B0B1" pageId="0" pageNumber="95" type="description">
<paragraph id="E6CAAB6885567CB34F0E0D56580668D2" pageId="0" pageNumber="95">
<figureCitation id="0ED893BC5C4EC90F3DC3A10E26F3BA90" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">Figs 2A-G</figureCitation>
<figureCitation id="01C5254C8E1176A7EDD8EDAAA1C34046" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">, 3A-D</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="E7E609C06FFF3770A94946A6394C1F3C" pageId="0" pageNumber="95" type="materials_examined">
<paragraph id="DDC272385B77E6793F1C20F138C7A13E" pageId="0" pageNumber="95">Material examined.</paragraph>
<paragraph id="C0DECA805F68FCDF267AB82D0972855B" pageId="0" pageNumber="95">
<materialsCitation id="853E1827379E20A8387299690E9FA72F" collectingDate="2023-05-18" collectorName="Lien Thi Phuong Nguyen, Cuong Quang Nguyen, Ngat Thi Tran" country="Vietnam" elevation="332" latitude="22.702223" location="Thanh Nhat" longLatPrecision="21" longitude="106.66361" municipality="Ha Lang" specimenCount="♂" specimenCount-male="1" stateProvince="Cao Bang" typeStatus="Holotype">
<emphasis id="4AF293B7879DA47C0B92384BBA4F3CBF" bold="true" pageId="0" pageNumber="95">
<emphasis id="8C598165BC1D5E384C1C2FBBC84C5F0E" italics="true" pageId="0" pageNumber="95">
<typeStatus id="F0E5AB3B36C139270CB200CAFFE21303" type="holotype">Holotype</typeStatus>
</emphasis>
.
</emphasis>
<collectingCountry id="599938AF36E2FA8EE79C14B69D73B2B7" name="Vietnam">Vietnam</collectingCountry>
•
<specimenCount id="96AAAB275875BEFB5B225562C2161E48" count="1" type="male">♂</specimenCount>
,
<collectingRegion id="D82C18899E9B2C16033804725FD1992D" country="Vietnam" name="Cao Bang">Cao Bang</collectingRegion>
,
<collectingMunicipality id="1CA4B0DBF72FC7A56FFBDF782C5D7C2D">Ha Lang</collectingMunicipality>
,
<location id="6C6B3B9C3B5096719B4DAEBD81C58961" LSID="urn:lsid:plazi:treatment:57F415B0DF6650FA89D097BC0A3AC0E9:6C6B3B9C3B5096719B4DAEBD81C58961" country="Vietnam" latitude="22.702223" longLatPrecision="21" longitude="106.66361" municipality="Ha Lang" name="Thanh Nhat" stateProvince="Cao Bang">Thanh Nhat</location>
;
<geoCoordinate id="737B21C1D56D9854ED3BE47DD6D87327" degrees="22" direction="north" minutes="42" orientation="latitude" precision="15" seconds="8" value="22.702223">22°42'8&quot;N</geoCoordinate>
,
<geoCoordinate id="B4A729AC28338C1E0BDF40D811132BED" degrees="106" direction="east" minutes="39" orientation="longitude" precision="15" seconds="49" value="106.66361">106°39'49&quot;E</geoCoordinate>
; alt.
<quantity id="BCF967369CB68BABBA4820A18B904799" metricMagnitude="2" metricUnit="m" metricValue="3.32" unit="m" value="332.0">
<elevation id="8ACC00CF568E27F4F9CC9A1F0C72DC81" metricMagnitude="2" metricUnit="m" metricValue="3.32" unit="m" value="332.0">332 m</elevation>
</quantity>
;
<collectingDate id="1378597CFF5BE151B1A4C6283182F5EF" value="2023-05-18">18.v.2023</collectingDate>
;
<collectorName id="109B7FCA58DF752C2D24A329BF00A5CC">Lien Thi Phuong Nguyen</collectorName>
,
<collectorName id="17637848CB48C26F879DF773B676F675">Cuong Quang Nguyen</collectorName>
&amp;
<collectorName id="3D4A6C9F250B281A8DFFC36075898369">Ngat Thi Tran</collectorName>
leg.; IEBR.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="83E2F3472C37FF90971F9C22CE35A4C3" pageId="0" pageNumber="95" type="diagnosis">
<paragraph id="D63A61D30D1185807AC46598B839FAB6" pageId="0" pageNumber="95">Diagnosis.</paragraph>
<paragraph id="31D59AD3477732ED870637A86C5622CB" pageId="0" pageNumber="95">
This species can be distinguished from other species in the genus in the following combination of characters: clypeus in frontal view as wide as high, apical margin widely emarginate medially, forming short, blunt teeth on each side, distance between teeth&gt;
<normalizedToken id="6F443DDE3275362A0905671B1D6173FB" originalValue="½">1/2</normalizedToken>
width of clypeus between inner compound eye margins (~0.55
<normalizedToken id="F22BD60E1920E83BD0D2F147040644AA" originalValue="×">x</normalizedToken>
width of clypeus between inner compound eye margins); occipital carina conspicuously widened laterally; mesoscutum in dorsal view slightly shorter than wide between tegulae; TI in dorsal view ~2.5
<normalizedToken id="5C57C8F0FCFA03896E42B9218547B00F" originalValue="×">x</normalizedToken>
as wide as long; TII sparsely punctate, interspaces much greater (2-3
<normalizedToken id="3B1217F1924D3B89191004C2EEBB402D" originalValue="×">x</normalizedToken>
) than puncture diameter, except at base and at apical margin with interspaces smaller than puncture diameter.
</paragraph>
<paragraph id="5AC0F5DDAF2EDA5E09B1B75228962468" pageId="0" pageNumber="95">
The new species is similar to
<taxonomicName id="825E11D50278768622CE5056F520C0AD" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="F6C5742C458CAB59EA1B8D3FFD5C9C87" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
in that both have TII sparsely punctate centrally, interspaces much greater (2-3
<normalizedToken id="C4CA33D5832D59A7397FC989E51A15DD" originalValue="×">x</normalizedToken>
) than puncture diameter. However, it differs from
<taxonomicName id="4EFC2C0AE611BE8AB677DEE6A93B22A0" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="7FFE2C347E523529EC31B21FFA7FB60C" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
in the following characters: mesoscutum in dorsal view slightly shorter than wide between tegulae (mesoscutum in dorsal view longer than wide between tegulae in
<taxonomicName id="7E41839F9653A989FEBB8AADCF77B080" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="F31050DD49526E43270F03CE4E8C8194" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
); TII with punctures conspicuous (TII with punctures less conspicuous in
<taxonomicName id="7799A87040EB1858F6A0E480C29E69B0" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="D6F9D8A311F7DAD3DCDF96F48AAB7C7B" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
); TII not lamellate apically (TII lamellate apically in
<taxonomicName id="EB6605CBFAC205823807960C1374757C" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="CDA6F2911E0C1D8D34D9C1FF44245C73" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
); TI-II with narrow, lateral stripes of orange-yellow (TI-II with apical thick yellow bands in
<taxonomicName id="B7AD2E3F80FB7F22397E603F17DFA092" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="9C650AC47881384518D6A050A9387FB8" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
); and digitus gradually narrowed from base to apex, penis valves long, more than 2
<normalizedToken id="43A7FB07A6CF5834BD12616E3E149BBB" originalValue="×">x</normalizedToken>
as long as basal apodeme (digitus almost parallel from base to half, then narrowed to apex in
<taxonomicName id="0DC8D463A2FB95BBDD1196B7B3031F82" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="O. drewseni" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="drewseni">
<emphasis id="5554DBF8652B218843E1725F2F0B024E" italics="true" pageId="0" pageNumber="95">O. drewseni</emphasis>
</taxonomicName>
(
<bibRefCitation id="21D80E14DD872F3801CB5AE9D883F83C" author="van der Vecht, J" journalOrPublisher="Zooelogische Verhandelingen" pageId="0" pageNumber="95" pagination="3 - 113" refId="B15" refString="van der Vecht, J, 1963. Studies on Indo-Australian and East-Asiatic Eumenidae (Hymenoptera, Vespoidea). Zooelogische Verhandelingen 60: 3 - 113" title="Studies on Indo-Australian and East-Asiatic Eumenidae (Hymenoptera, Vespoidea)." volume="60" year="1963">van der Vecht 1963</bibRefCitation>
: fig. 8f); penis valves shorter, less than 2
<normalizedToken id="793A58A63F941E28E5B7B69915214C1A" originalValue="×">x</normalizedToken>
as long as basal apodeme (
<bibRefCitation id="591DF0A4D565C00FD01F9826D667162F" author="van der Vecht, J" journalOrPublisher="Zooelogische Verhandelingen" pageId="0" pageNumber="95" pagination="3 - 113" refId="B15" refString="van der Vecht, J, 1963. Studies on Indo-Australian and East-Asiatic Eumenidae (Hymenoptera, Vespoidea). Zooelogische Verhandelingen 60: 3 - 113" title="Studies on Indo-Australian and East-Asiatic Eumenidae (Hymenoptera, Vespoidea)." volume="60" year="1963">van der Vecht 1963</bibRefCitation>
: fig. 8g)).
</paragraph>
</subSubSection>
<subSubSection id="01F156EDC20777F96CFC2C2F0F0DD903" pageId="0" pageNumber="95" type="description">
<paragraph id="34CB9F4C69612D3C21849E1F716E7DEE" pageId="0" pageNumber="95">Description.</paragraph>
<paragraph id="2E0AE1B1967DD6251FB9F91B962A4CC3" pageId="0" pageNumber="95">
<emphasis id="66CB940A6E1E34023C29C3C03C186451" bold="true" pageId="0" pageNumber="95">Male</emphasis>
(Fig.
<figureCitation id="35BDB1B538DA2CAD7CFEF9B167817A56" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">3A</figureCitation>
): body length 13.2 mm; forewing length 12.5 mm.
</paragraph>
<paragraph id="58D518F0D9BDA5E2BC8FA0E84D7F39A6" pageId="0" pageNumber="95">
<emphasis id="352C68A30F1E3EA88DBB5FB73F0FC699" bold="true" pageId="0" pageNumber="95">
<emphasis id="4E5EE8070952B46B48A46BA3D9C836EC" italics="true" pageId="0" pageNumber="95">Structure</emphasis>
.
</emphasis>
Head in frontal view subcircular, ~1.3
<normalizedToken id="21E8EA1D12B57F9B33229DADDC4A51A7" originalValue="×">x</normalizedToken>
as wide as high (Fig.
<figureCitation id="7333E8EFD9471AA3A6954483DE4A7790" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2A</figureCitation>
). Vertex sloping down behind lateral ocelli towards occipital carina, without cephalic foveae. Distance from lateral ocelli to apical margin of vertex 2.7
<normalizedToken id="23204060CAE808116E76FA5A6C697F49" originalValue="×">x</normalizedToken>
distance from lateral ocellus to inner compound eye margin (Fig.
<figureCitation id="6171A4C6B7494D199C3AF2902ED83027" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2B</figureCitation>
). Gena in lateral view much narrower than compound eye, ~0.6
<normalizedToken id="9B6D29003D7CDCDF108A553C62663962" originalValue="×">x</normalizedToken>
as wide as compound eye; occipital carina complete, present along entire length of gena, markedly widened laterally (Fig.
<figureCitation id="2F1BCB88286D2E3A315BE943A2ABB124" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2F</figureCitation>
). Inner compound eye margins in frontal view convergent ventrally, in anterior view 1.2
<normalizedToken id="FFF1EAB3D79EB7623362BD1D696E6F86" originalValue="×">x</normalizedToken>
further apart from each other at vertex than at clypeus (Fig.
<figureCitation id="9B81DB3B977153F4EDCD44428CF2DEC7" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2A</figureCitation>
). Clypeus in lateral view gradually convex from base to apical margin; in frontal view as wide as high (Fig.
<figureCitation id="86D8DDBC0BFEBF0F1350CEAE109A5874" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2A</figureCitation>
), with basal margin almost straight medially and distinctly separated from antennal toruli; apical margin widely emarginate medially, forming blunt short teeth on each side, distance between teeth&gt;
<normalizedToken id="AEEB880FAFDB8FC2FF9D290E6C31B33A" originalValue="½">1/2</normalizedToken>
width of clypeus between inner compound eye margins (~0.55
<normalizedToken id="E340EA88762012770F0713F8099BCD6C" originalValue="×">x</normalizedToken>
width of clypeus between inner compound eye margins). Mandible with prominent wide teeth. Scape long, ~4.2
<normalizedToken id="C1394EF5C2A763D38D80B5A11393F19F" originalValue="×">x</normalizedToken>
as long as its maximum width, slightly curved; FI long, ~2.3
<normalizedToken id="48E56C3512AC063EF9E8103150BDD305" originalValue="×">x</normalizedToken>
longer than wide, FII ~1.5
<normalizedToken id="56D8939E17DDF0F148C404C6344A6D05" originalValue="×">x</normalizedToken>
as long as wide, FIII ~1.3
<normalizedToken id="802D7A6EDDC9064BD2D3C49FC14A45DB" originalValue="×">x</normalizedToken>
as long as wide, FIV slightly longer than wide, FV-VIII almost as long as wide, FIX ~1.2
<normalizedToken id="8306725AAED52224E9B83FDD59104F5C" originalValue="×">x</normalizedToken>
longer than wide, FX small, terminal flagellomere slender, ~2.7
<normalizedToken id="390396E59072E9B0257AA5FEC69C4F0E" originalValue="×">x</normalizedToken>
as long as its basal width, slightly curved (Fig.
<figureCitation id="334B59E549A91A134484288D9C35D11C" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2C</figureCitation>
). Mesosoma longer than wide in dorsal view (Fig.
<figureCitation id="9EC01C4DC61AC611692E693333BFAAB4" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2D</figureCitation>
). Pronotal carina present, rounded at humeral angle, reaching ventral corner of pronotum. Mesoscutum slightly convex, slightly shorter than wide between tegulae, with depressed and oblique furrows apically, and two carinae laterally at apical one-third (Fig.
<figureCitation id="38B0FB449433ACEE987AD0CF7FFE6BEB" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2D</figureCitation>
) (with middle narrow furrow present at basal one-third). Disc of mesoscutellum convex, in lateral view at same level as mesoscutum (Fig.
<figureCitation id="73D5E0B9981F6A1191F27698F5BB94AB" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2F</figureCitation>
), narrowly depressed basally. Metanotum slightly convex. Propodeum (Fig.
<figureCitation id="379B342316AADB7CD64E6428C92FAB0B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2E</figureCitation>
) conspicuously excavated medially, with posterior surface distinctly concave, at basal quarter with median carina running to apical margin; border between dorsal and lateral surfaces slightly angled, posterior and lateral surfaces angled. TI in dorsal view narrower than TII, truncate at base (Fig.
<figureCitation id="018235BBF84896B9C1693A0DCC3B17BB" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2G</figureCitation>
); anterior vertical surface of TI slightly convex, with sparse shallow punctures, clearly separated from posterior horizontal surface by carina. TI in dorsal view ~2.5
<normalizedToken id="7548DC3BA4985FC77D84A77F731EE411" originalValue="×">x</normalizedToken>
as wide as long; TII in dorsal view ~1.1
<normalizedToken id="FC29FB9BBCD401BB0850EB3E5200D68D" originalValue="×">x</normalizedToken>
wider than long (Fig.
<figureCitation id="9AE8FB86E69D0E321EED4CA5C85D8E1C" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2G</figureCitation>
); SII in lateral view slightly depressed basally, then gradually and slightly convex to apical margin, with weak medial furrow at basal half.
</paragraph>
<caption id="D852E161C6C84ECEDCAE6A6600DB5E51" doi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95" start="Figure 2" startId="F2">
<paragraph id="A3EB87FDC1806CC9938523B45F784981" pageId="0" pageNumber="95">
<emphasis id="DFB827FF2E4E88AF5971A89B0A1ABB09" bold="true" pageId="0" pageNumber="95">Figure 2.</emphasis>
<taxonomicName id="F865522EAFEA5C74196D502C53795498" authorityName="Nguyen &amp; Nguyen &amp; Dang" authorityYear="2024" class="Insecta" family="Vespidae" genus="Orancistrocerus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Orancistrocerus thanhnhat" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="thanhnhat">
<emphasis id="AE5E68F2E9FD1CF686A391B0BDB13A4E" italics="true" pageId="0" pageNumber="95">Orancistrocerus thanhnhat</emphasis>
</taxonomicName>
sp. nov., male holotype
<emphasis id="042A0AD41FF46BAA1B2A7BDB89EB9527" bold="true" pageId="0" pageNumber="95">A</emphasis>
frontal view
<emphasis id="3C0796819F5CEA89147BAF86BDA753A9" bold="true" pageId="0" pageNumber="95">B</emphasis>
head, dorsal view
<emphasis id="0A993156D9A0EA524D73D81B00E08063" bold="true" pageId="0" pageNumber="95">C</emphasis>
antenna
<emphasis id="303948F4AEC870C2DEDB5B321E881BE7" bold="true" pageId="0" pageNumber="95">D</emphasis>
mesosoma, dorsal view
<emphasis id="C100709B0B6E85CE55EF49767270A272" bold="true" pageId="0" pageNumber="95">E</emphasis>
propodeum, posterior view
<emphasis id="760441CE5951D1CDB4FA7255FB8F093D" bold="true" pageId="0" pageNumber="95">F</emphasis>
head and mesosoma, lateral view
<emphasis id="DF7AD79D0139EFBD06E9298C328B59E6" bold="true" pageId="0" pageNumber="95">G</emphasis>
metasoma, dorsal view. Scale bars: 1 mm.
</paragraph>
</caption>
<paragraph id="4BE629D3FAC0C2F12B1BCE86A74896F4" pageId="0" pageNumber="95">
<emphasis id="CCDD2CA4B4AEF0D1171378A35A3A399C" bold="true" pageId="0" pageNumber="95">
<emphasis id="9DEFE09276FC58722BC8A6DAC0C2A661" italics="true" pageId="0" pageNumber="95">Sculpturing</emphasis>
.
</emphasis>
Clypeus with sparse, shallow, large, undefined punctures on disc; border between punctures smooth. Mandible with row of punctures laterally. Frons densely covered with coarse, flat-bottomed punctures; interspaces between punctures narrow and raised to form reticulation. Vertex with coarse punctures, punctures equal in size; gena with punctures similar to those on apical half of vertex, punctures smaller and less coarse in basal half, with several short transverse conspicuous striae laterally; occipital carina markedly widened laterally (Fig.
<figureCitation id="56CA6D9ABDAD033964B9746D65D06B21" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Orancistrocerus thanhnhat sp. nov., male holotype A frontal view B head, dorsal view C antenna D mesosoma, dorsal view E propodeum, posterior view F head and mesosoma, lateral view G metasoma, dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure2" httpUri="https://binary.pensoft.net/fig/995425" pageId="0" pageNumber="95">2F</figureCitation>
). Pronotum with punctures less coarse than those on vertex. Mesoscutum covered with flat-bottomed punctures, punctures equal in size, interspaces between punctures forming reticulation that tends to form longitudinal carina centrally; mesoscutellum with punctures similar to those on pronotum, punctures on metanotum denser than those on mesoscutellum, interspaces between punctures narrow and raised to form reticulation. Mesepisternum with flat-bottomed punctures, punctures coarser and larger than those on pronotum posterodorsally, smooth anteroventrally; border between posterodorsal and anteroventral parts distinct, without epicnemial carina. Dorsal part of metapleuron largely smooth and with several short and conspicuous striae, ventral part largely smooth, with sparse and shallow punctures laterally. Propodeum with coarse, large, flat-bottomed punctures dorsally; punctures are shallower, smaller, and sparser laterally; angle between dorsal and lateral parts of propodeum somewhat rounded; posteriorly surface of propodeum with punctures at upper and lateral parts, with oblique weak carina at lower part, and with a large smooth area centrally. Tegulae with minute punctures. Metasomal segment I covered with sparse and conspicuous punctures dorsally, fine and sparse punctures dorso-anteriorly, distance between punctures greater than puncture diameter; TII with punctures shallower than those on TI, punctures near apical margins deeper, larger and coarser than those on other parts of the tergum, interspaces between punctures greater (~2-3
<normalizedToken id="CE86F0A0F153DA05CD0915A9BD1359AE" originalValue="×">x</normalizedToken>
) than puncture diameter at central part; TIII-V with punctures conspicuous and deep, smaller than those on TII; TVI and TVII with minute punctures; SII with sparse punctures, punctures deeper and larger than those on margins of TII laterally; SIII-V with punctures smaller and shallower than those on SII; SI with narrow basal part smooth.
</paragraph>
<paragraph id="BDAFFBF7F21892C9170A9F7B2292F6B4" pageId="0" pageNumber="95">
<emphasis id="C3BB3C035649A1E7AF3CA1BCFCF9BF31" bold="true" pageId="0" pageNumber="95">
<emphasis id="30AA75FCEC8DE72E5C6236B9D4397967" italics="true" pageId="0" pageNumber="95">Color</emphasis>
.
</emphasis>
Black; clypeus yellow, except for black margin; yellow spot near base of mandible; beneath scape yellow; flagellomeres beneath light brown; two short, orange-yellow bands at apical margins of TI and TII. Propodeal valvulae dark brown. Middle coxae with two short, yellow strips; hind coxae with a yellow spot. Wings brown, transparent; veins dark brown (Fig.
<figureCitation id="C81589B9A36D29A0DFCCEE2E25B61948" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">3A</figureCitation>
).
</paragraph>
<caption id="27431B4EB32A68E63A68CEC46334234D" doi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95" start="Figure 3" startId="F3">
<paragraph id="3E4A7D9D148A407BC88CD48F5EE9D031" pageId="0" pageNumber="95">
<emphasis id="265C9FF85D753557FFFB019926B7819D" bold="true" pageId="0" pageNumber="95">Figure 3.</emphasis>
<taxonomicName id="290BBEA32E8B70C5DF258A7EA927B12C" authorityName="Nguyen &amp; Nguyen &amp; Dang" authorityYear="2024" class="Insecta" family="Vespidae" genus="Orancistrocerus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Orancistrocerus thanhnhat" order="Hymenoptera" pageId="0" pageNumber="95" phylum="Arthropoda" rank="species" species="thanhnhat">
<emphasis id="09CEB52DE1A03BB81028807B818F7645" italics="true" pageId="0" pageNumber="95">Orancistrocerus thanhnhat</emphasis>
</taxonomicName>
sp. nov., male holotype
<emphasis id="7482B43685A8709171460C21C698D6AB" bold="true" pageId="0" pageNumber="95">A</emphasis>
habitus, dorsolateral view
<emphasis id="F3516810CB17C88EB084EA6B5864BB59" bold="true" pageId="0" pageNumber="95">B</emphasis>
genitalia, inner aspect of paramere with volsella and digitus
<emphasis id="A88BF140F72AF133EA5B0C54644BDB68" bold="true" pageId="0" pageNumber="95">C</emphasis>
aedeagus, ventral view
<emphasis id="EE3B223BA3CE91FB9ADC001E12065D1D" bold="true" pageId="0" pageNumber="95">D</emphasis>
aedeagus, lateral view. Scale bars: 1 mm.
</paragraph>
</caption>
<paragraph id="6708BB74A7A01CDBB76568FDB29CECB6" pageId="0" pageNumber="95">
<emphasis id="44FF90A1AE6C7D79361C7D07F2D5649D" bold="true" pageId="0" pageNumber="95">
<emphasis id="93498FB351E3BEF8DF3251CFC3A481DD" italics="true" pageId="0" pageNumber="95">Pubescence</emphasis>
.
</emphasis>
Head and thorax with long, dense, yellow setae; metasoma with short, dense, yellow setae.
</paragraph>
<paragraph id="0C88365E20AA4B279AAB473204BB5B79" pageId="0" pageNumber="95">
<emphasis id="CBB91226FFE4274235D7A2E39F96E844" bold="true" pageId="0" pageNumber="95">Female.</emphasis>
Unknown.
</paragraph>
<paragraph id="31E89E52D9CC3B872BAF5ABF6BB0DC3F" pageId="0" pageNumber="95">
<emphasis id="AF11323F9A1A444853CD1EF2E6BB8BB9" bold="true" pageId="0" pageNumber="95">
<emphasis id="B8EEB9E10F3A84547BAAF07986024FA0" italics="true" pageId="0" pageNumber="95">Genitalia</emphasis>
.
</emphasis>
As in Fig.
<figureCitation id="1E99A17D658DB1C7D657F38928521BCB" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">3B-D</figureCitation>
. Parameral spine lacking setae. Volsella flattened, spatulate, wide on inner aspect, and without setae apically. Digitus gradually narrowing from base to apex, all setose (Fig.
<figureCitation id="1444B4E99843DFA9DEE6B8E3FA0D952D" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">3B</figureCitation>
). Penis valve long, ~2.2
<normalizedToken id="576D19EA1CC087756AA9D2B92BB94E55" originalValue="×">x</normalizedToken>
as long as basal apodeme (Fig.
<figureCitation id="C663B1D6618857E2C22BEC2BEF51FB32" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">3C</figureCitation>
), in profile apical part conspicuously produced into triangular lobe (Fig.
<figureCitation id="0012F3EFEA037279A49B30B5D249A4B4" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Orancistrocerus thanhnhat sp. nov., male holotype A habitus, dorsolateral view B genitalia, inner aspect of paramere with volsella and digitus C aedeagus, ventral view D aedeagus, lateral view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1193.116087.figure3" httpUri="https://binary.pensoft.net/fig/995426" pageId="0" pageNumber="95">3D</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="7491F0E0B5F4781D215CF96FC60FA657" pageId="0" pageNumber="95" type="distribution">
<paragraph id="8821317D146787612FE053D308C8752B" pageId="0" pageNumber="95">Distribution.</paragraph>
<paragraph id="089B14A8A34A4540358EF109B1CDFDE9" pageId="0" pageNumber="95">Northern Vietnam.</paragraph>
</subSubSection>
<subSubSection id="2288EFB0515BDAC8695D33AD2311B62F" pageId="0" pageNumber="95" type="etymology">
<paragraph id="039D0F3CA53862FDD767ABCDE723A284" pageId="0" pageNumber="95">Etymology.</paragraph>
<paragraph id="07D6B304F719755842C33624BF632917" pageId="0" pageNumber="95">The specific epithet is a noun in apposition that refers to the name of the town where the holotype was collected.</paragraph>
</subSubSection>
</treatment>
</document>
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