256 lines
30 KiB
XML
256 lines
30 KiB
XML
<document id="177511E2AFCA4EF808F80D8AEE396D18" ID-DOI="10.11646/zootaxa.2845.1.1" ID-ISSN="11755334" ID-Zenodo-Dep="5287811" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629719132675" checkinUser="felipe" docAuthor="Heterick, Brian E. & Shattuck, Steve" docDate="2011" docId="F72587FD7036FFD2FF73EEC2893FFED9" docLanguage="en" docName="zt02845p174.pdf" docOrigin="Zootaxa 2845 (1)" docSource="https://www.biotaxa.org/Zootaxa/article/view/zootaxa.2845.1.1" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Iridomyrmex difficilis Heterick & Shattuck 2011, sp. n." docType="treatment" docVersion="5" lastPageNumber="75" masterDocId="0B1CFF85707EFF98FFE4EE558A0BFFC5" masterDocTitle="Revision of the ant genus Iridomyrmex (Hymenoptera: Formicidae) 2845" masterLastPageNumber="174" masterPageNumber="1" pageNumber="73" updateTime="1699101301303" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:titleInfo id="A73CE562BB5178E60C3836559296300A">
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<mods:title id="905D6B47994EF5EB74B4DF1C304D985D">Revision of the ant genus Iridomyrmex (Hymenoptera: Formicidae) 2845</mods:title>
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<mods:name id="820548A18D9311C157AD220D9E5A9F18" type="personal">
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<mods:namePart id="C5FBC745BA800FB6ED3B48AB5635C817">Heterick, Brian E.</mods:namePart>
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<mods:name id="7B92C92B9A2C64AEA16985614B4A3CC2" type="personal">
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<mods:roleTerm id="9CF90E8006B31D634FFD5EDA311DED2D">Author</mods:roleTerm>
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<mods:namePart id="5DF408891CB3BF2C81ECA1BC802509A7">Shattuck, Steve</mods:namePart>
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<mods:typeOfResource id="3C30D697A1A54E64E0D0B08B11E8EDE0">text</mods:typeOfResource>
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<mods:title id="9161D325B1E1A8457A71453F557EEBC1">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="F610258AA7785ED25AFEC079CC691109">
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<mods:date id="2B084C55277BA620F46E8CF23DB1AE5C">2011</mods:date>
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<mods:detail id="EB6658DEF9FF9EA29A0340373098131A" type="pubDate">
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<mods:number id="876346AD0BAACE987C56721A3B6FAA15">2011-04-29</mods:number>
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<mods:number id="E8F382F69A846FAAB7F0007C09BD99C9">2845</mods:number>
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<mods:detail id="B6BB8F5EC7DE209136589B36AA49AE29" type="issue">
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<mods:url id="5834730ABD8D2FE95CC01F1AE60A3142">https://www.biotaxa.org/Zootaxa/article/view/zootaxa.2845.1.1</mods:url>
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<mods:classification id="74482A16B651317A1C772FB0ACC62DC7">journal article</mods:classification>
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<mods:identifier id="F16842EBA4D6C6F90DFD21334884C6A2" type="DOI">10.11646/zootaxa.2845.1.1</mods:identifier>
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<mods:identifier id="1325632C1AD063BE0106A59DD2C9CC49" type="ISSN">11755334</mods:identifier>
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<treatment id="F72587FD7036FFD2FF73EEC2893FFED9" ID-DOI="http://doi.org/10.5281/zenodo.5293986" ID-Zenodo-Dep="5293986" LSID="urn:lsid:plazi:treatment:F72587FD7036FFD2FF73EEC2893FFED9" httpUri="http://treatment.plazi.org/id/F72587FD7036FFD2FF73EEC2893FFED9" lastPageId="74" lastPageNumber="75" pageId="72" pageNumber="73">
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<subSubSection id="379665607036FFD0FF73EEC28BE3FF74" box="[151,488,151,177]" pageId="72" pageNumber="73" type="nomenclature">
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<paragraph id="7F3336EB7036FFD0FF73EEC28BE3FF74" blockId="72.[151,488,151,208]" box="[151,488,151,177]" pageId="72" pageNumber="73">
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<heading id="247B81877036FFD0FF73EEC28BE3FF74" bold="true" box="[151,488,151,177]" fontSize="11" level="1" pageId="72" pageNumber="73" reason="1">
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<emphasis id="4DF8EAF97036FFD0FF73EEC28BE3FF74" bold="true" box="[151,488,151,177]" pageId="72" pageNumber="73">
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<taxonomicName id="B88C4D687036FFD0FF73EEC28B94FF74" authority="Heterick & Shattuck, 2011" authorityName="Heterick & Shattuck" authorityYear="2011" box="[151,415,151,177]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis" status="sp. nov.">
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<emphasis id="4DF8EAF97036FFD0FF73EEC28B94FF74" bold="true" box="[151,415,151,177]" italics="true" pageId="72" pageNumber="73">Iridomyrmex difficilis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="56CB57827036FFD0FE42EEC28BE3FF74" box="[422,488,151,177]" pageId="72" pageNumber="73" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="379665607036FFD0FF73EEEF8AC4FA50" pageId="72" pageNumber="73" type="description">
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<paragraph id="7F3336EB7036FFD0FF73EEEF8B13FF15" blockId="72.[151,488,151,208]" box="[151,280,186,208]" pageId="72" pageNumber="73">
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(
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<figureCitation id="E7B72A6E7036FFD0FF7AEEEF8AE7FF15" box="[158,236,186,208]" captionStart="FIGURE 31" captionStartId="73.[150,249,1934,1957]" captionTargetBox="[151,1436,287,1916]" captionTargetId="figure-107@73.[151,1436,287,1916]" captionTargetPageId="73" captionText="FIGURE 31. Iridomyrmex difficilis, pale form with rounded propodeum (Mount Webb, Qld, ANIC32-032094): A. Front of head; B. Side of body; C. Top of body. Iridomyrmex difficilis, dark form with angular propodeum (Darwin, NT, ANIC32- 047320): D. Front of head; E. Side of body; F. Top of body; G. Distribution of material examined." figureDoi="http://doi.org/10.5281/zenodo.5287895" httpUri="https://zenodo.org/record/5287895/files/figure.png" pageId="72" pageNumber="73">Figs 31</figureCitation>
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,
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<figureCitation id="E7B72A6E7036FFD0FF13EEEF8B1AFF15" box="[247,273,186,208]" captionStart="FIGURE 95" captionStartId="163.[151,250,1962,1985]" captionTargetBox="[168,1423,1104,1923]" captionTargetId="figure-48@163.[151,1435,1094,1935]" captionTargetPageId="163" captionText="FIGURE 95. Scape length versus head width for I. difficilis and I. mjobergi." figureDoi="http://doi.org/10.5281/zenodo.5288076" httpUri="https://zenodo.org/record/5288076/files/figure.png" pageId="72" pageNumber="73">95</figureCitation>
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)
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</paragraph>
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<paragraph id="7F3336EB7036FFD0FF73EEA88BD8FDB8" blockId="72.[151,1436,252,2005]" pageId="72" pageNumber="73">
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<emphasis id="4DF8EAF97036FFD0FF73EEA88AE8FED0" bold="true" box="[151,227,253,277]" inLineHeading="true" pageId="72" pageNumber="73" reason="1">Types.</emphasis>
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<typeStatus id="A03788497036FFD0FF0FEEA88B58FED0" box="[235,339,253,277]" pageId="72" pageNumber="73" type="holotype">Holotype</typeStatus>
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worker from
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<quantity id="B8749B0E7036FFD0FE0AEEA8882BFED0" box="[494,544,253,277]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="72" pageNumber="73" unit="km" value="2.0">2km</quantity>
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NNW Crossman,
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<geoCoordinate id="1AB8502C7036FFD0FD14EEA88947FED0" box="[752,844,252,277]" degrees="32" direction="south" minutes="45" orientation="latitude" pageId="72" pageNumber="73" precision="925" value="-32.75">32°45’S</geoCoordinate>
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<geoCoordinate id="1AB8502C7036FFD0FCB7EEA889CBFED0" box="[851,960,252,277]" degrees="116" direction="east" minutes="34" orientation="longitude" pageId="72" pageNumber="73" precision="925" value="116.566666">116°34’E</geoCoordinate>
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,
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<collectingRegion id="BD48F8097036FFD0FC28EEAB8E93FED0" box="[972,1176,253,277]" country="Australia" name="Western Australia" pageId="72" pageNumber="73">Western Australia</collectingRegion>
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,
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<date id="0B32102B7036FFD0FB47EEA88F74FED0" box="[1187,1407,253,277]" pageId="72" pageNumber="73" value="1981-09-24">24 September 1981</date>
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, I. D. Naumann & J. C. Cardale (ANIC, ANIC32-042124).
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<typeStatus id="A03788497036FFD0FCF7EF77898FFEFF" box="[787,900,290,314]" pageId="72" pageNumber="73" type="paratype">Paratypes</typeStatus>
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:
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<specimenCount id="698AFD627036FFD0FC6AEF7489F6FEFC" box="[910,1021,289,313]" pageId="72" pageNumber="73" type="worker">3 workers</specimenCount>
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from Mt Magnet area,
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<collectingRegion id="BD48F8097036FFD0FAE7EF778AD8FE98" country="Australia" name="Western Australia" pageId="72" pageNumber="73">Western Australia</collectingRegion>
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,
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<date id="0B32102B7036FFD0FF04EF108B70FE98" box="[224,379,325,350]" pageId="72" pageNumber="73" value="1967-05-15">15 May 1967</date>
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, C. T. Mercovich, ANIC Ants Vial 63.233 (ANIC, ANIC32-032540);
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<specimenCount id="698AFD627036FFD0FB46EF108F18FE98" box="[1186,1299,325,349]" pageId="72" pageNumber="73" type="worker">3 workers</specimenCount>
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from
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<quantity id="B8749B0E7036FFD0FAB8EF108F97FE98" box="[1372,1436,325,349]" metricMagnitude="4" metricUnit="m" metricValue="1.6" pageId="72" pageNumber="73" unit="km" value="16.0">16km</quantity>
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NNW Gibson,
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<geoCoordinate id="1AB8502C7036FFD0FEA1EF3C8BAAFE44" box="[325,417,361,385]" degrees="33" direction="south" minutes="31" orientation="latitude" pageId="72" pageNumber="73" precision="925" value="-33.516666">33°31’S</geoCoordinate>
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<geoCoordinate id="1AB8502C7036FFD0FE4EEF3C8813FE44" box="[426,536,361,385]" degrees="121" direction="east" minutes="43" orientation="longitude" pageId="72" pageNumber="73" precision="925" value="121.71667">121°43’E</geoCoordinate>
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,
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<date id="0B32102B7036FFD0FDC3EF3C890DFE44" box="[551,774,361,385]" pageId="72" pageNumber="73" value="1969-11-17">17 November 1969</date>
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, R. W. Taylor, ANIC Ants Vial 60.148 (ANIC, ANIC32- 038317);
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<specimenCount id="698AFD627036FFD0FEE0EFD88B7FFE60" box="[260,372,397,421]" pageId="72" pageNumber="73" type="worker">9 workers</specimenCount>
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from Mt. Magnet area,
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<collectingRegion id="BD48F8097036FFD0FD62EFDB895FFE60" box="[646,852,397,421]" country="Australia" name="Western Australia" pageId="72" pageNumber="73">Western Australia</collectingRegion>
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,
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<date id="0B32102B7036FFD0FCBBEFD889F2FE60" box="[863,1017,397,422]" pageId="72" pageNumber="73" value="1967-05-15">15 May 1967</date>
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, C. T. Mercovich (ANIC,
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<specimenCount id="698AFD627036FFD0FAC0EFDB8F9CFE60" box="[1316,1431,397,421]" pageId="72" pageNumber="73" type="worker">7 workers</specimenCount>
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, MCZC,
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<specimenCount id="698AFD627036FFD0FF10EFE48B6DFE0C" box="[244,358,433,457]" pageId="72" pageNumber="73" type="worker">2 workers</specimenCount>
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, ANIC32-040017). Note: A
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<typeStatus id="A03788497036FFD0FD42EFE788F6FE0F" box="[678,765,434,458]" pageId="72" pageNumber="73" type="syntype">syntype</typeStatus>
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of
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<taxonomicName id="B88C4D687036FFD0FCC7EFE78995FE0C" box="[803,926,433,457]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="mjobergi">
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<emphasis id="4DF8EAF97036FFD0FCC7EFE78927FE0C" box="[803,812,434,457]" italics="true" pageId="72" pageNumber="73">I</emphasis>
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.
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<emphasis id="4DF8EAF97036FFD0FCDEEFE48995FE0C" box="[826,926,433,457]" italics="true" pageId="72" pageNumber="73">mjobergi</emphasis>
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</taxonomicName>
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from the Kimberley district,
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<collectingRegion id="BD48F8097036FFD0FB02EFE78ABDFE28" country="Australia" name="Western Australia" pageId="72" pageNumber="73">Western Australia</collectingRegion>
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, examined during this study actually belongs to this species. With the designation of another
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<taxonomicName id="B88C4D687036FFD0FB27EF838F35FE28" box="[1219,1342,469,493]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="mjobergi">
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<emphasis id="4DF8EAF97036FFD0FB27EF838EC7FE28" box="[1219,1228,470,493]" italics="true" pageId="72" pageNumber="73">I</emphasis>
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.
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<emphasis id="4DF8EAF97036FFD0FB3EEF808F35FE28" box="[1242,1342,469,493]" italics="true" pageId="72" pageNumber="73">mjobergi</emphasis>
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</taxonomicName>
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<typeStatus id="A03788497036FFD0FAA1EF838F97FE2B" box="[1349,1436,470,494]" pageId="72" pageNumber="73" type="syntype">syntype</typeStatus>
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(from the same locality) as the
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<typeStatus id="A03788497036FFD0FE1CEFAC8855FDD4" box="[504,606,505,529]" pageId="72" pageNumber="73" type="lectotype">lectotype</typeStatus>
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for
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<taxonomicName id="B88C4D687036FFD0FD6BEFAF8900FDD4" box="[655,779,505,529]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="mjobergi">
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<emphasis id="4DF8EAF97036FFD0FD6BEFAF8893FDD4" box="[655,664,506,529]" italics="true" pageId="72" pageNumber="73">I</emphasis>
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||
.
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<emphasis id="4DF8EAF97036FFD0FD43EFAC8900FDD4" box="[679,779,505,529]" italics="true" pageId="72" pageNumber="73">mjobergi</emphasis>
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</taxonomicName>
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, this specimen loses its type status (ICZN, article 73.2.2), and hence its name bearing function. Since this specimen is badly mounted and its features are poorly displayed (though still recognizable on close inspection), a new and better quality pinned worker has been chosen as a
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<typeStatus id="A03788497036FFD0FA85EC148ACCFDBB" pageId="72" pageNumber="73" type="holotype">holotype</typeStatus>
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to represent
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<taxonomicName id="B88C4D687036FFD0FEBCEC338BC7FDB8" authorityName="Heterick & Shattuck" authorityYear="2011" box="[344,460,613,637]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
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<emphasis id="4DF8EAF97036FFD0FEBCEC338B6AFDB8" box="[344,353,614,637]" italics="true" pageId="72" pageNumber="73">I</emphasis>
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||
.
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<emphasis id="4DF8EAF97036FFD0FE94EC308BC7FDB8" box="[368,460,613,637]" italics="true" pageId="72" pageNumber="73">difficilis</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph id="7F3336EB7036FFD0FF23ECDC8B87FAEC" blockId="72.[151,1436,252,2005]" pageId="72" pageNumber="73">
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<emphasis id="4DF8EAF97036FFD0FF23ECDC8802FD67" bold="true" box="[199,521,649,674]" pageId="72" pageNumber="73">
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Worker Description.
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<emphasis id="4DF8EAF97036FFD0FE20ECDC8802FD67" bold="true" box="[452,521,649,674]" italics="true" pageId="72" pageNumber="73">Head.</emphasis>
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</emphasis>
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Posterior margin of head weakly concave; erect setae on posterior margin in fullface view, present singly or as a couple of setae on either side of posterior margin of head, or absent; sides of head noticeably convex; erect genal setae absent from sides of head in full-face view (one to a few small setae may be present near mandibular insertion). Ocelli absent; in full-face view, eyes set at about midpoint of head capsule; in profile, eye set anteriad of head capsule; eye asymmetrical, curvature of inner eye margin more pronounced than that of its outer margin. Frontal carinae straight; antennal scape barely attaining posterior margin of head, or surpassing it by less than 1 x its diameter. Erect setae on scape absent, except at tip; prominence on anteromedial clypeal margin present as an indistinct swelling or undulation; mandible triangular with distinct angle between masticatory and basal margins; long, curved setae on venter of head capsule absent.
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<emphasis id="4DF8EAF97036FFD0FBA0EDFF8ECEFC04" bold="true" box="[1092,1221,938,961]" italics="true" pageId="72" pageNumber="73">Mesosoma.</emphasis>
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pronotum strongly inclined anteriorly. Erect pronotal setae sparse to absent. Mesonotum straight, or evenly curved. Mesothoracic spiracles always inconspicuous; propodeal dorsum protuberant, or straight and short (equal in length to propodeal declivity); placement of propodeal spiracle posteriad and near propodeal declivity; propodeal angle present as sharply defined angle, the dorsal and declivitous propodeal faces often separated by a carina, or present as a bluntly defined right angle, the dorsal and declivitous propodeal faces never separated by a carina. Erect propodeal setae lacking or very minute (one or two tiny setae present).
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<emphasis id="4DF8EAF97036FFD0FCEDEAD48954FB5F" bold="true" box="[777,863,1153,1178]" italics="true" pageId="72" pageNumber="73">Petiole.</emphasis>
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Dorsum of node acuminate, or convex; node thin, scale-like, orientation more-or-less vertical.
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<emphasis id="4DF8EAF97036FFD0FD6BEAF088EAFB7B" bold="true" box="[655,737,1189,1214]" italics="true" pageId="72" pageNumber="73">Gaster.</emphasis>
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Non-marginal erect setae of gaster present or absent on first gastral tergite; marginal erect setae of gaster present on first tergite, or absent on first tergite.
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<emphasis id="4DF8EAF97036FFD0FB52EA9C8F90FB27" bold="true" box="[1206,1435,1225,1250]" italics="true" pageId="72" pageNumber="73">General characters.</emphasis>
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Allometric differences between workers of same nest absent. Colour uniformly medium to blackish-brown. Colour of erect setae whitish.
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</paragraph>
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<paragraph id="7F3336EB7036FFD0FF23EB608AC4FA50" blockId="72.[151,1436,252,2005]" pageId="72" pageNumber="73">
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<emphasis id="4DF8EAF97036FFD0FF23EB608B76FA88" bold="true" box="[199,381,1333,1357]" inLineHeading="true" pageId="72" pageNumber="73" reason="1">Measurements.</emphasis>
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||
<emphasis id="4DF8EAF97036FFD0FE63EB608BD3FA88" box="[391,472,1333,1357]" italics="true" pageId="72" pageNumber="73">Worker</emphasis>
|
||
(n = 9)—CI 85–92; EI 24–30; EL 0.13–0.16; EW 0.10–0.12; HFL 0.49–0.67; HL 0.55–0.68; HW 0.48–0.60; ML 0.57–0.78; MTL 0.36–0.49; PpH 0.08–0.12; PpL 0.26–0.36; SI 85–94; SL 0.44– 0.54.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="379665607036FFD2FF23EBF48EC6FF32" lastPageId="74" lastPageNumber="75" pageId="72" pageNumber="73" type="discussion">
|
||
<paragraph id="7F3336EB7036FFD0FF23EBF4893DF848" blockId="72.[151,1436,252,2005]" pageId="72" pageNumber="73">
|
||
<emphasis id="4DF8EAF97036FFD0FF23EBF48B44FA7F" bold="true" box="[199,335,1441,1466]" inLineHeading="true" pageId="72" pageNumber="73" reason="1">Comments.</emphasis>
|
||
<taxonomicName id="B88C4D687036FFD0FEBEEBF48859FA7C" authorityName="Heterick & Shattuck" authorityYear="2011" box="[346,594,1441,1465]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97036FFD0FEBEEBF48859FA7C" box="[346,594,1441,1465]" italics="true" pageId="72" pageNumber="73">Iridomyrmex difficilis</emphasis>
|
||
</taxonomicName>
|
||
, as its name suggests, poses some taxonomic difficulties because of its bland yet variable morphology. Workers of southern populations tend to have a steeply ascending anterior pronotum and weakly truncate propodeum and often also have a few small setae on the posterior margin of the head and on the pronotum. Further north, workers tend to be glabrous with a strongly protuberant propodeum, while populations in the Torresian zone, also glabrous, often have only a moderately ascending pronotum and a truncate propodeum that may have a sharp or even slightly dentate propodeal angle. Intermediate forms that link the more distinctive phenotypes occur throughout the range of the species. Workers of this very small brown ant are most easily mistaken for small workers of
|
||
<taxonomicName id="B88C4D687036FFD0FDDFE8CB88BCF970" box="[571,695,1693,1717]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="mjobergi">
|
||
<emphasis id="4DF8EAF97036FFD0FDDFE8CB884FF970" box="[571,580,1694,1717]" italics="true" pageId="72" pageNumber="73">I</emphasis>
|
||
.
|
||
<emphasis id="4DF8EAF97036FFD0FDB7E8C888BCF970" box="[595,695,1693,1717]" italics="true" pageId="72" pageNumber="73">mjobergi</emphasis>
|
||
</taxonomicName>
|
||
, which also have yellow mandibles. However, the antennal scape is always shorter in
|
||
<taxonomicName id="B88C4D687036FFD0FE9DE8978BE6F91C" authorityName="Heterick & Shattuck" authorityYear="2011" box="[377,493,1729,1753]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97036FFD0FE9DE8978B89F91C" box="[377,386,1730,1753]" italics="true" pageId="72" pageNumber="73">I</emphasis>
|
||
.
|
||
<emphasis id="4DF8EAF97036FFD0FE75E8948BE6F91C" box="[401,493,1729,1753]" italics="true" pageId="72" pageNumber="73">difficilis</emphasis>
|
||
</taxonomicName>
|
||
than in
|
||
<taxonomicName id="B88C4D687036FFD0FDAEE89788CDF91C" box="[586,710,1729,1753]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="mjobergi">
|
||
<emphasis id="4DF8EAF97036FFD0FDAEE8978858F91C" box="[586,595,1730,1753]" italics="true" pageId="72" pageNumber="73">I</emphasis>
|
||
.
|
||
<emphasis id="4DF8EAF97036FFD0FD86E89488CDF91C" box="[610,710,1729,1753]" italics="true" pageId="72" pageNumber="73">mjobergi</emphasis>
|
||
</taxonomicName>
|
||
, and, in full-face view, barely breaks the outline of the posterior margin of the head, if at all (see key). The metanotal groove is also stronger in
|
||
<taxonomicName id="B88C4D687036FFD0FBE6E8B38E7EF938" authorityName="Heterick & Shattuck" authorityYear="2011" box="[1026,1141,1765,1789]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97036FFD0FBE6E8B38E00F938" box="[1026,1035,1766,1789]" italics="true" pageId="72" pageNumber="73">I</emphasis>
|
||
.
|
||
<emphasis id="4DF8EAF97036FFD0FBFDE8B08E7EF938" box="[1049,1141,1765,1789]" italics="true" pageId="72" pageNumber="73">difficilis</emphasis>
|
||
</taxonomicName>
|
||
. Glabrous specimens with a strongly rounded and protuberant propodeum are very similar to
|
||
<taxonomicName id="B88C4D687036FFD0FC6CE95F89FDF8E4" authorityName="Heterick & Shattuck" authorityYear="2011" box="[904,1014,1802,1825]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="gumnos">
|
||
<emphasis id="4DF8EAF97036FFD0FC6CE95F899AF8E4" box="[904,913,1802,1825]" italics="true" pageId="72" pageNumber="73">I</emphasis>
|
||
.
|
||
<emphasis id="4DF8EAF97036FFD0FC7BE95F89FDF8E4" box="[927,1014,1802,1825]" italics="true" pageId="72" pageNumber="73">gumnos</emphasis>
|
||
</taxonomicName>
|
||
, but the latter has a strongly concave posterior margin of the head in full-face view, and the antennal scape exceeds the posterior margin of the head by approximately twice its greatest diameter. The closest relative to
|
||
<taxonomicName id="B88C4D687036FFD0FC9DE90789E6F8AC" authorityName="Heterick & Shattuck" authorityYear="2011" box="[889,1005,1873,1897]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97036FFD0FC9DE90789E6F8AC" box="[889,1005,1873,1897]" italics="true" pageId="72" pageNumber="73">I. difficilis</emphasis>
|
||
</taxonomicName>
|
||
is likely to be
|
||
<taxonomicName id="B88C4D687036FFD0FB7EE9078F07F8AC" box="[1178,1292,1874,1897]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="cyaneus">
|
||
<emphasis id="4DF8EAF97036FFD0FB7EE9078F07F8AC" box="[1178,1292,1874,1897]" italics="true" pageId="72" pageNumber="73">I. cyaneus</emphasis>
|
||
</taxonomicName>
|
||
, but that ant has an iridescence always lacking in
|
||
<taxonomicName id="B88C4D687036FFD0FDD0E92388A3F848" authorityName="Heterick & Shattuck" authorityYear="2011" box="[564,680,1909,1933]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97036FFD0FDD0E92388A3F848" box="[564,680,1909,1933]" italics="true" pageId="72" pageNumber="73">I. difficilis</emphasis>
|
||
</taxonomicName>
|
||
(see above).
|
||
</paragraph>
|
||
<paragraph id="7F3336EB7036FFD2FF23E9CC8EC6FF32" blockId="72.[151,1436,252,2005]" lastBlockId="74.[151,1436,151,284]" lastPageId="74" lastPageNumber="75" pageId="72" pageNumber="73">
|
||
<taxonomicName id="B88C4D687036FFD0FF23E9CC8BB6F874" authorityName="Heterick & Shattuck" authorityYear="2011" box="[199,445,1945,1969]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="72" pageNumber="73" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97036FFD0FF23E9CC8BB6F874" box="[199,445,1945,1969]" italics="true" pageId="72" pageNumber="73">Iridomyrmex difficilis</emphasis>
|
||
</taxonomicName>
|
||
is a very widespread, relatively common species, and has been recorded from all the mainland Australian states as well as on islands in the Torres Strait and off the
|
||
<collectingRegion id="BD48F8097036FFD0FBE0E9E88E83F810" box="[1028,1160,1981,2005]" country="Australia" name="Queensland" pageId="72" pageNumber="73">Queensland</collectingRegion>
|
||
coastline. The species is capable of occupying a range of habitats, including rainforest, grassland, dry sclerophyll forest, acacia woodland and even paddocks, and is predominantly a ground forager that nests in soil. There is one series taken from a nest under a rock (Sevenhill,
|
||
<collectingRegion id="BD48F8097034FFD2FE56EEC28863FF6A" box="[434,616,151,175]" country="Australia" name="South Australia" pageId="74" pageNumber="75">South Australia</collectingRegion>
|
||
). While many, perhaps most records come from pitfall traps, specimens have also been collected by hand, from a berlesate and from sieved litter. Like many other
|
||
<taxonomicName id="B88C4D687034FFD2FB79EEE98F25FF11" box="[1181,1326,188,212]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="4DF8EAF97034FFD2FB79EEE98F25FF11" box="[1181,1326,188,212]" italics="true" pageId="74" pageNumber="75">Iridomyrmex</emphasis>
|
||
</taxonomicName>
|
||
, this species has been found tending the caterpillar of
|
||
<taxonomicName id="B88C4D687034FFD2FD71EEB58967FF3D" baseAuthorityName="Donovan" baseAuthorityYear="1805" box="[661,876,224,248]" class="Insecta" family="Lycaenidae" genus="Jalmenus" kingdom="Animalia" order="Lepidoptera" pageId="74" pageNumber="75" phylum="Arthropoda" rank="species" species="evagoras">
|
||
<emphasis id="4DF8EAF97034FFD2FD71EEB58967FF3D" box="[661,876,224,248]" italics="true" pageId="74" pageNumber="75">Jalmenus evagoras</emphasis>
|
||
</taxonomicName>
|
||
(Whiporie,
|
||
<collectingRegion id="BD48F8097034FFD2FC10EEB58ECAFF32" box="[1012,1217,223,247]" country="Australia" name="New South Wales" pageId="74" pageNumber="75">New South Wales</collectingRegion>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="2BF366637037FFD1FF72E9DB8E7FF827" ID-DOI="http://doi.org/10.5281/zenodo.5287895" ID-Zenodo-Dep="5287895" httpUri="https://zenodo.org/record/5287895/files/figure.png" pageId="73" pageNumber="74" startId="73.[150,249,1934,1957]" targetBox="[151,1436,287,1916]" targetPageId="73">
|
||
<paragraph id="7F3336EB7037FFD1FF72E9DB8E7FF827" blockId="73.[150,1436,1934,2018]" pageId="73" pageNumber="74">
|
||
<emphasis id="4DF8EAF97037FFD1FF72E9DB8B2AF860" bold="true" box="[150,289,1934,1957]" pageId="73" pageNumber="74">FIGURE 31.</emphasis>
|
||
<taxonomicName id="B88C4D687037FFD1FECEE9DA8803F860" authorityName="Heterick & Shattuck" authorityYear="2011" box="[298,520,1935,1957]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97037FFD1FECEE9DA8803F860" box="[298,520,1935,1957]" italics="true" pageId="73" pageNumber="74">Iridomyrmex difficilis</emphasis>
|
||
</taxonomicName>
|
||
, pale form with rounded propodeum (Mount Webb, Qld, ANIC32-032094): A. Front of head; B. Side of body; C. Top of body.
|
||
<taxonomicName id="B88C4D687037FFD1FDA4E9F88914F806" authorityName="Heterick & Shattuck" authorityYear="2011" box="[576,799,1965,1987]" class="Insecta" family="Formicidae" genus="Iridomyrmex" kingdom="Animalia" order="Hymenoptera" pageId="73" pageNumber="74" phylum="Arthropoda" rank="species" species="difficilis">
|
||
<emphasis id="4DF8EAF97037FFD1FDA4E9F88914F806" box="[576,799,1965,1987]" italics="true" pageId="73" pageNumber="74">Iridomyrmex difficilis</emphasis>
|
||
</taxonomicName>
|
||
, dark form with angular propodeum (Darwin, NT, ANIC32- 047320): D. Front of head; E. Side of body; F. Top of body; G. Distribution of material examined.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="379665607034FFD2FF23EF51893FFED9" box="[199,820,260,284]" pageId="74" pageNumber="75" type="etymology">
|
||
<paragraph id="7F3336EB7034FFD2FF23EF51893FFED9" blockId="74.[151,1436,151,284]" box="[199,820,260,284]" pageId="74" pageNumber="75">
|
||
<emphasis id="4DF8EAF97034FFD2FF23EF518B45FED9" bold="true" box="[199,334,260,284]" inLineHeading="true" pageId="74" pageNumber="75" reason="1">Etymology.</emphasis>
|
||
Latin meaning ‘troublesome’ or ‘difficult’.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |