120 lines
13 KiB
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120 lines
13 KiB
XML
<document id="17C2306CF5598D5A6D117A4F654BFD78" ENCODING="Cp1252" ID-GBIF-Dataset="295f42e2-3eaa-4815-bf8d-c90b6f9defdf" ModsDocID="22827" checkinTime="1252144181925" checkinUser="christiana" docAuthor="Yoshimura, M. & Fisher, B. L." docDate="2009" docId="BCC3B23016C7968E0FCE7E121F415C51" docLanguage="en" docName="22827_tx.xml" docOrigin="Zootaxa 2216" docSource="http://hol.osu.edu/reference-full.html?id=22827" docType="treatment" docVersion="9" lastPageNumber="20" masterDocId="36B43C9FABB50EA34A85A2CDFEEA945E" masterDocTitle="A revision of male ants of the Malagasy region (Hymenoptera: Formicidae): Key to genera of the subfamily Proceratiinae." masterLastPageNumber="21" masterPageNumber="1" pageNumber="15" updateTime="1701311882583" updateUser="plazi">
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<mods:title id="88C15A1A63E38915EA38A9A33EED1012">A revision of male ants of the Malagasy region (Hymenoptera: Formicidae): Key to genera of the subfamily Proceratiinae.</mods:title>
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<mods:namePart id="EBEDC4DCC5BC6A9E9D49FAA8E6B1C79F">Yoshimura, M.</mods:namePart>
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<mods:namePart id="007D6243576CBBFF90DC063835C07FFD">Fisher, B. L.</mods:namePart>
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<mods:typeOfResource id="58C31F720666178CD3431D3E015ED17B">text</mods:typeOfResource>
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<mods:date id="A3D74AFFD8A1E0A77B2F219A09793C35">2009</mods:date>
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<mods:number id="764210DF926DE395E4E21120767E4749">2216</mods:number>
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<mods:classification id="2C6B7CFA8D5241C015E7F39B2DCDA549">journal article</mods:classification>
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<mods:identifier id="C2E10FBFF94CC712E9BC673F51BC500B" type="HNS-Pub">22827</mods:identifier>
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<treatment id="BCC3B23016C7968E0FCE7E121F415C51" LSID="urn:lsid:plazi:treatment:BCC3B23016C7968E0FCE7E121F415C51" httpUri="http://treatment.plazi.org/id/BCC3B23016C7968E0FCE7E121F415C51" lastPageNumber="20" pageNumber="15">
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<subSubSection id="24A717D4438A7D5CB9CC2C713AE87F17" type="nomenclature">
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<paragraph id="182FDB8E26B114248B162BD619BA9A08" pageNumber="15">Genus PRm01</paragraph>
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</subSubSection>
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<subSubSection id="5E9CFCA7C6D4FF4D42275BC332F6B51E" type="description">
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<paragraph id="D1DAC17B51987DB19668BBD9B9D2FD62" pageNumber="15">(Figs 6, 12, 22-24, 30, 34)</paragraph>
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<paragraph id="4CEA2BD91C7FD6D0066E508772AA9BA9" pageNumber="15">Since only a single male specimen of this genus has been collected so far, we do not describe it as new here. However, we regard this male as belonging to an isolated genus, and its diagnostic characters and remarks are given below.</paragraph>
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<paragraph id="61A5678F937F8FC760608AEC986AB2C6" pageNumber="15">
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With characters of
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<taxonomicName id="6C69F5846F8CAA4F14DAE9527037180B" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:183173" lsidName-HNS="Proceratiinae Emery" pageNumber="15" rank="subFamily" subFamily="Proceratiinae">Proceratiinae</taxonomicName>
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. Mandible stout and shaped like a curved short blade such as a jambiya (Fig. 30). Frontoclypeal region not projecting dorsally. Frontal carinae merged into single carina between antennal sockets. Antennal sockets opening dorsally. Antenna with 12 segments. Labrum triangular: narrowed apically, with a single apex (Fig. 30). Second segment of the maxillary palp not hammer-shaped (Fig. 34). Pro- and metatibia with a single spur, mesotibia without spurs. Pygostyles absent.
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</paragraph>
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<paragraph id="B2459D13A4AD0AB3673E3556CA6AF9AE" pageNumber="15">On forewing, costa and radius completely developed, and radial sector reaches to the costal margin (Fig. 6). On hindwing, free section of radius and cubitus absent, radial sector, M+Cu, and cu-a crossvein present (Fig. 12).</paragraph>
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</subSubSection>
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<subSubSection id="970A29059C1F96DD8DDC1356E0CE5ADA" type="discussion">
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<paragraph id="D23CBD82D0869207D53DD259EB3C55A3" pageNumber="15">
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Remarks. The undescribed genus PRm01 can be distinguished easily from the other three Malagasy proceratine genera by the antennae consisting of 12 segments, a triangular labrum (Fig. 30), and the mesotibiae lacking a spur. PRm01 sp. is the first male known in
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<taxonomicName id="E8D791A08C76D8A3718E83864B7EC4CE" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:183173" lsidName-HNS="Proceratiinae Emery" pageNumber="15" rank="subFamily" subFamily="Proceratiinae">Proceratiinae</taxonomicName>
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with a 12-segmented antenna. Bolton (2003: 49) has proposed 13-segmented antenna as a diagnostic character of both tribes in
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<taxonomicName id="2AA12F04AB4DA5F71F24C147A4EB5BF6" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:183173" lsidName-HNS="Proceratiinae Emery" pageNumber="15" rank="subFamily" subFamily="Proceratiinae">Proceratiinae</taxonomicName>
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; this now must be amended.
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</paragraph>
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<paragraph id="D9F4871560A2DC97B8220996CDBFD6EE" pageNumber="15">
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There is one erroneous report of a12-segmented antenna in
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<taxonomicName id="AD09BE87A28AC2A7FE9714D90797EC0C" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24854" class="Insecta" family="Formicidae" genus="Proceratium" kingdom="Animalia" lsidName-HNS="Proceratium Roger" order="Hymenoptera" pageNumber="15" phylum="Arthropoda" rank="genus">Proceratium</taxonomicName>
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. Kennedy and Talbot (1939) previously described a male of
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<taxonomicName id="0AA454C9353E824E8CC8E5F28F934DD7" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:35569" class="Insecta" family="Formicidae" genus="Proceratium" kingdom="Animalia" lsidName-HNS="Proceratium silaceum Roger" order="Hymenoptera" pageNumber="15" phylum="Arthropoda" rank="species" species="silaceum">Proceratium silaceum Roger</taxonomicName>
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, 1863, and included a drawing and description of a male with a 12-segmented antenna (their figure 1). However, their figure 6 illustration shows an antenna with 13 segments for the same species. As Brown (1958) has pointed out, their figures and description disagree in palpal formula, and we conclude they also differ in antennal count. Baroni Urbani and De Andrade (2003: fig. 162) have included an SEM image of a male of
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<taxonomicName id="BD2BB6BB74F428479A95EA5F2AA75A2B" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:35569" class="Insecta" family="Formicidae" genus="Proceratium" kingdom="Animalia" lsidName-HNS="Proceratium silaceum Roger" order="Hymenoptera" pageNumber="15" phylum="Arthropoda" rank="species" species="silaceum">Proceratium silaceum</taxonomicName>
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, on which the antenna clearly consists of 13 segments. Therefore, males of
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<taxonomicName id="D40C758AC6362C66BBBFAAA9F61922C4" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24854" class="Insecta" family="Formicidae" genus="Proceratium" kingdom="Animalia" lsidName-HNS="Proceratium Roger" order="Hymenoptera" pageNumber="15" phylum="Arthropoda" rank="genus">Proceratium</taxonomicName>
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have 13-segmented antennae and not 12 as erroneously reported by Kennedy and Talbot (1939).
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</paragraph>
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<paragraph id="94A0E6AF9A148D601C2DB6226F26D2AC" pageNumber="15">
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The triangular labrum is a unique character for PRm01 within the
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<taxonomicName id="A218BFF1AEED172A20454CF6E1E3C51F" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:183173" lsidName-HNS="Proceratiinae Emery" pageNumber="15" rank="subFamily" subFamily="Proceratiinae">Proceratiinae</taxonomicName>
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(Fig. 30). An apically bilobed labrum is the usual pattern in the Formicidae (Gotwald 1969). The triangular labrum, a wide and bilobed clypeus, and stout mandibles with outward curved masticatory margins should be expected in conspecific workers. These characters may have a special function.
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</paragraph>
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<caption id="700116B0F5CF02D502BF8E8DB5A40518">
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<paragraph id="4850182DEBA16E79E748C23FB294F49A" pageNumber="16">
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<pageStartToken id="FEA3CFC7F48DE7F2B54B54D8871F86B4" pageNumber="16">FIGURES</pageStartToken>
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27-28. Labrum of proceratine males. Basal margin on top. 27, Discothyrea mgm01 (CASENT0083245) in internal view; 28, Probolomyrmex mgm01 (CASENT0525318) in external view.
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</paragraph>
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</caption>
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<caption id="A0011267C43AD589C3EB5470C4BBCDC6">
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<paragraph id="8FD19FD6141E9C56FF58FFA644F0842E" pageNumber="17">
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<pageStartToken id="2068A32FB98903C3F967168291126DFE" pageNumber="17">FIGURES</pageStartToken>
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29-30. Proceratine males. 29, Labrum of
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<taxonomicName id="CBB5C121FE01C7A2DE8529D3D47BEE8C" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24854" class="Insecta" family="Formicidae" genus="Proceratium" kingdom="Animalia" lsidName-HNS="Proceratium Roger" order="Hymenoptera" pageNumber="17" phylum="Arthropoda" rank="genus">Proceratium mgm</taxonomicName>
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01 (CASENT0191991) in external view, basal margin on top; 30, Labrum and mandibles of PRm01 sp. (CASENT0103485) in oblique full-face view.
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</paragraph>
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</caption>
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<caption id="E28264A211F4BE4BFF91478F7123CC44">
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<paragraph id="6D7440A44246D18FCD1E9C16D0C9452D" pageNumber="18">
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<pageStartToken id="0070513EC0618A4EB492F0CE28AFD8B6" pageNumber="18">FIGURES</pageStartToken>
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31-32. Mouthparts of proceratine males. 31, Discothyrea mgm01 (CASENT0083245), left palps on right side; 32, Probolomyrmex mgm01 (CASENT0525318), left palps on top.
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</paragraph>
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</caption>
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<caption id="C5C3E3F27E23F15CEE8C434CE22B724E">
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<paragraph id="85F8CA83751BE9A240B2C5681C5C19E7" pageNumber="19">
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<pageStartToken id="E7D433F9F27F9AB98CD348B87D4E5B18" pageNumber="19">FIGURES</pageStartToken>
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33-34. Mouthparts of proceratine males. 33,
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<taxonomicName id="3AA29D0323DE1270B77135EEF7AD0132" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24854" class="Insecta" family="Formicidae" genus="Proceratium" kingdom="Animalia" lsidName-HNS="Proceratium Roger" order="Hymenoptera" pageNumber="19" phylum="Arthropoda" rank="genus">Proceratium mgm</taxonomicName>
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01 (CASENT0191991), right palps on left side; 34, PRm01 sp. (CASENT0103485), right maxillary palp on front.
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</paragraph>
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</caption>
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<paragraph id="13CF5F9363233A34ECC756D298D1447E" pageNumber="20">
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<pageStartToken id="590695F336CBC9EE7BC39D0A23703BBB" pageNumber="20">Only</pageStartToken>
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a single specimen was collected from the Seychelles (CASENT0103485). Similarity in forewing venations between PRm01 (Fig. 6) and
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<taxonomicName id="807B532745C4906BED009CF5DC6F8712" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24852" class="Insecta" family="Formicidae" genus="Discothyrea" kingdom="Animalia" lsidName-HNS="Discothyrea Roger" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="genus">Discothyrea</taxonomicName>
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(Fig. 2) suggests their close relationship (see
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<taxonomicName id="34C3329DB36EC7FBB7F9BD15ABFFAC7F" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24852" class="Insecta" family="Formicidae" genus="Discothyrea" kingdom="Animalia" lsidName-HNS="Discothyrea Roger" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="genus">Discothyrea</taxonomicName>
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section above); however, the male of PRm01 can be distinguished easily from those of
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<taxonomicName id="79A1B3E656595EE7970A4F2661464BD1" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24852" class="Insecta" family="Formicidae" genus="Discothyrea" kingdom="Animalia" lsidName-HNS="Discothyrea Roger" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="genus">Discothyrea</taxonomicName>
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by the following characters: frontoclypeal region not expanded dorsally, 12-segmented antennae, triangular labrum (Fig. 30), longer second maxillary palpal segment (Fig. 34), absence of pygostyles, lack of a mesotibial spur, presence of cu-a in hindwing (Fig. 6), larger size, and brighter color, as PRm01 is yellowish-brown (Fig. 22), while
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<taxonomicName id="2C812A9A271BEFB8AE7E7B514A195DB2" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:24852" class="Insecta" family="Formicidae" genus="Discothyrea" kingdom="Animalia" lsidName-HNS="Discothyrea Roger" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="genus">Discothyrea</taxonomicName>
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is black (Fig. 19). Formal description of this taxon awaits the future collection of additional males and the first workers.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |