189 lines
20 KiB
XML
189 lines
20 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.700.11784" ID-GBIF-Dataset="30d1c76a-41e1-4f66-9fb5-460bf381f752" ID-PMC="PMC5711039" ID-Pensoft-Pub="1313-2970-700-1" ID-PubMed="29358897" ID-ZBK="EBA4322720AD4CFFA04E8D2542DDA3D6" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1313-2970-700-1" ModsDocOrigin="ZooKeys 700" ModsDocTitle="Revision of the ant genus Melophorus (Hymenoptera, Formicidae)" checkinTime="1506009303549" checkinUser="pensoft" docAuthor="Heterick, Brian E., Castalanelli, Mark & Shattuck, Steve O." docDate="2017" docId="F7436E208C23BCFA1B16786B44526FEB" docLanguage="en" docName="ZooKeys 700: 1-420" docOrigin="ZooKeys 700" docSource="http://dx.doi.org/10.3897/zookeys.700.11784" docTitle="Melophorus graciliceps Heterick, Castalanelli & Shattuck, sp. n." docType="treatment" docUuid="76F8E129-AA19-498A-8E2B-FDD57235C147" docUuidSource="ZooBank" docVersion="5" lastPageNumber="167" masterDocId="FF93E60CA711CB7BFF95D521FFFDFF9A" masterDocTitle="Revision of the ant genus Melophorus (Hymenoptera, Formicidae)" masterLastPageNumber="420" masterPageNumber="1" pageNumber="164" updateTime="1668164819442" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Revision of the ant genus Melophorus (Hymenoptera, Formicidae)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Heterick, Brian E.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Castalanelli, Mark</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Shattuck, Steve O.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>700</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>420</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.700.11784</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.700.11784</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-700-1</mods:identifier>
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<mods:identifier type="ZBK">EBA4322720AD4CFFA04E8D2542DDA3D6</mods:identifier>
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<mods:identifier type="ZooBank">EBA4322720AD4CFFA04E8D2542DDA3D6</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="150814445" LSID="urn:lsid:zoobank.org:act:76F8E129-AA19-498A-8E2B-FDD57235C147" httpUri="http://treatment.plazi.org/id/F7436E208C23BCFA1B16786B44526FEB" lastPageId="166" lastPageNumber="167" pageId="163" pageNumber="164">
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<subSubSection pageId="163" pageNumber="164" type="nomenclature">
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<paragraph pageId="163" pageNumber="164">
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<taxonomicName LSID="http://zoobank.org/76F8E129-AA19-498A-8E2B-FDD57235C147" authority="Heterick, Castalanelli & Shattuck" class="Insecta" family="Formicidae" genus="Melophorus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Melophorus graciliceps" order="Hymenoptera" pageId="163" pageNumber="164" phylum="Arthropoda" rank="species" species="graciliceps">Melophorus graciliceps Heterick, Castalanelli & Shattuck</taxonomicName>
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<taxonomicNameLabel pageId="163" pageNumber="164">sp. n.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="164" lastPageNumber="165" pageId="163" pageNumber="164" type="types">
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<paragraph pageId="163" pageNumber="164">Types.</paragraph>
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<paragraph lastPageId="164" lastPageNumber="165" pageId="163" pageNumber="164">
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Holotype minor worker (bottom ant) from Heathcote, near Bendigo, Victoria, 26 May 1961, B.B. Lowery, 1000 ft, dry sclerophyll, ANIC ants vial 20.238 [ANIC32-900175] (ANIC). Paratypes: 2 major workers on same pin and with same details as
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<pageBreakToken pageId="164" pageNumber="165" start="start">Holotype</pageBreakToken>
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(ANIC); 1 major and 2 minor workers from Heathcote near Bendigo, Victoria, 29 May 1961, B.B. Lowery, 1000ft, dry sclerophyll, ANIC Ants Vial 20.239 (BMNH); 3 minor workers from Yathong Nature Reserve
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<geoCoordinate direction="south" orientation="latitude" precision="15" value="-145.67584">145°40'33"S</geoCoordinate>
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,
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<geoCoordinate direction="south" orientation="latitude" precision="15" value="-32.6275">32°37'39"S</geoCoordinate>
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, New South Wales, 3-25 October 2003, C. Lambkin & N. Starwick, 205m, ANIC Bulk Sample 2154, open woodland, field of flowers, Malaise [ANIC32-030855] (MCZ); 6 major and 2 minor workers from St George, Queensland, 7 January 1966, B.B. Lowery, '
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<taxonomicName class="Insecta" family="Formicidae" genus="Melophorus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Melophorus" order="Hymenoptera" pageId="164" pageNumber="165" phylum="Arthropoda" rank="genus">Melophorus</taxonomicName>
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', Reddish soil, savannah woodland, R10 (back of
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<normalizedToken originalValue="label–‘">label-'</normalizedToken>
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strange
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<normalizedToken originalValue="nest–deep">nest-deep</normalizedToken>
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narrow cone, smooth, a perfect insect
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<normalizedToken originalValue="trap’">trap'</normalizedToken>
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) (QM); 2 major and one minor worker from Calca, South Australia, 26 September 1957, B.B. Lowery, mallee scrub, ANIC Ants Vial 22.188 (SAM); 2 major workers from Westonia, Western Australia, coll. approx. 2000; Environmental Biology Department, Curtin University of Technology, [JDM32-001979] (WAM).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="164" pageNumber="165" type="materials_examined">
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<paragraph pageId="164" pageNumber="165">Other material examined.</paragraph>
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<paragraph pageId="164" pageNumber="165">
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New South Wales: 24 km E Rankins Spring (Lowery, B.B.), 4 km N Coombah Road House, Route 79 (Crozier, R.H., Imai, H.T. & Ward, P.S.), CSIRO Lake Mere Field Station, near Louth (Bryannah,
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<taxonomicName genus="M." lsidName="M." pageId="164" pageNumber="165" rank="genus">M.</taxonomicName>
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), Queensland:
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<normalizedToken originalValue="‘Merigol’">'Merigol'</normalizedToken>
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(Beutel, T.). South Australia: Brookfield Conservation park (Shattuck, S.O. [ANIC32-900110]), Cambrai (Greenslade, P.J.
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<taxonomicName genus="M." lsidName="M." pageId="164" pageNumber="165" rank="genus">M.</taxonomicName>
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), Cambrai (Greenslade, P.J.
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<taxonomicName genus="M." lsidName="M." pageId="164" pageNumber="165" rank="genus">M.</taxonomicName>
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), Cambrai (Greenslade, P.J.
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<taxonomicName genus="M." lsidName="M." pageId="164" pageNumber="165" rank="genus">M.</taxonomicName>
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). Victoria: Sea Lake (Goudie [ANIC32-900111]). Western Australia: 30 km N Billabong RH (Heterick, B.E. [M25/M35/M36]), 7 km E of Burakin (Heterick, B.E. [JDM32-001978]), Dryandra SF (Norwood, C. [JDM32-001980]).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="164" pageNumber="165" type="diagnosis">
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<paragraph pageId="164" pageNumber="165">Diagnosis.</paragraph>
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<paragraph pageId="164" pageNumber="165">
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<taxonomicName class="Insecta" family="Formicidae" genus="Melophorus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Melophorus graciliceps" order="Hymenoptera" pageId="164" pageNumber="165" phylum="Arthropoda" rank="species" species="graciliceps">Melophorus graciliceps</taxonomicName>
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can be placed in the
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<taxonomicName lsidName="M. biroi" pageId="164" pageNumber="165" rank="species" species="biroi">M. biroi</taxonomicName>
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species-group on the basis of characters of the clypeus, propodeum, mandible and palps. The species is also placed in the
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<taxonomicName lsidName="M. mjobergi" pageId="164" pageNumber="165" rank="species" species="mjobergi">M. mjobergi</taxonomicName>
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clade but differs from the most derived species, and the major worker does not have the deeply recessed area around the frontal carinae and medial sector of clypeus or the impressed setae-bearing sockets visible in the major and media workers that is seen in
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<taxonomicName lsidName="M. mjobergi" pageId="164" pageNumber="165" rank="species" species="mjobergi">M. mjobergi</taxonomicName>
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,
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<taxonomicName lsidName="M. postlei" pageId="164" pageNumber="165" rank="species" species="postlei">M. postlei</taxonomicName>
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and
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<taxonomicName lsidName="M. compactus" pageId="164" pageNumber="165" rank="species" species="compactus">M. compactus</taxonomicName>
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. Minor and major workers workers of
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<taxonomicName lsidName="M. graciliceps" pageId="164" pageNumber="165" rank="species" species="graciliceps">M. graciliceps</taxonomicName>
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are clothed with fine, appressed silvery setae that form pubescence in the minor worker, at least, in conjunction with multiple scattered, modified erect setae (the modified setae varying from distally slightly flattened to clavate) on the head, mesosoma and gaster. This species can only be confused with its near relation,
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<taxonomicName lsidName="M. lissotriches" pageId="164" pageNumber="165" rank="species" species="lissotriches">M. lissotriches</taxonomicName>
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, but differs in having an only weakly convex eye in the minor worker (strongly convex in
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<taxonomicName lsidName="M. lissotriches" pageId="164" pageNumber="165" rank="species" species="lissotriches">M. lissotriches</taxonomicName>
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), the eye barely interrupting the outline of head capsule. In profile, the pronotum of the minor worker rises gently, and the mesosoma is thereafter more-or-less straight, the mesonotum does not dip towards the propodeum and the metanotal groove is not demarcated by a v-shaped notch. The frontal carinae of the major worker is concave (straight or weakly convex in
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<taxonomicName lsidName="M. graciliceps" pageId="164" pageNumber="165" rank="species" species="graciliceps">M. graciliceps</taxonomicName>
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) and the cuticle of its head is smooth and shining (matt or weakly shining in
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<taxonomicName lsidName="M. graciliceps" pageId="164" pageNumber="165" rank="species" species="graciliceps">M. graciliceps</taxonomicName>
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).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="165" lastPageNumber="166" pageId="164" pageNumber="165" type="description">
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<paragraph pageId="164" pageNumber="165">Minor worker description.</paragraph>
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<paragraph lastPageId="165" lastPageNumber="166" pageId="164" pageNumber="165">
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Head. Head square; posterior margin of head planar to strongly convex; frons shining with superficial shagreenation or microreticulation only; frons consisting almost completely of appressed setae that may form pubescence (tiny, erect setae, if present, usually confined to ocular triangle). Eye moderate (eye length 0.20-0.49 length of side of head capsule); in full-face view, eyes set above mid
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<pageBreakToken pageId="165" pageNumber="166" start="start">point</pageBreakToken>
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of head capsule; in profile, eye set anteriad of midline of head capsule; eyes elliptical or slightly reniform. In full-face view, frontal carinae straight or weakly convex; frontal lobes straight in front of antennal insertion. Anteromedial clypeal margin broadly and evenly convex; clypeal psammophore set at or just above anterior clypeal margin; palp formula 6,4. Five mandibular teeth in minor worker; mandibles triangular, weakly incurved; third mandibular tooth distinctly shorter than apical tooth and teeth numbers two and four; masticatory margin of mandibles approximately vertical or weakly oblique. Mesosoma. Integument of pronotum, mesonotum and mesopleuron with weak to moderate sheen and superficial microreticulation (more pronounced on mesopleuron); anterior mesosoma in profile weakly elevated anteriad, thereafter gently sinuate, pronotum and mesonotum on same plane; appearance of erect pronotal setae short and often expanded distally, at times clavate; in profile, metanotal groove a weak or vestigial furrow; propodeum shining and shagreenate; propodeum smoothly rounded or with indistinct angle; propodeal dorsum and declivity confluent; erect propodeal setae present and abundant (greater than 12), or present and sparse to moderate (1-12); appressed propodeal setulae long and closely aligned, creating pubescence; propodeal spiracle situated on or beside declivitous face of propodeum, and longer (length ≥ 0.50
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<normalizedToken originalValue="×">x</normalizedToken>
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height of propodeum). Petiole. In profile, petiolar node squamiform; in full-face view, shape of petiolar node square with sharp angles; node shining and distinctly shagreenate-microreticulate. Gaster. Gaster weakly shining with indistinct shagreenation; pilosity of first gastral tergite consisting of thick, appressed setae that form pubescence, interspersed with numerous short, modified (sometimes clavate), erect setae. General characters. Colour brown to blackish-brown.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="166" lastPageNumber="167" pageId="165" pageNumber="166" type="description">
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<paragraph pageId="165" pageNumber="166">Major worker description.</paragraph>
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<paragraph lastPageId="166" lastPageNumber="167" pageId="165" pageNumber="166">
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Head. Head square; posterior margin of head planar or weakly concave; cuticle of frons shining and smooth except for piliferous pits; frons consisting mainly of well-spaced appressed and a few mainly modified, clavate (feather-like) erect setae. Eye moderate (eye length 0.20-0.49 length of head capsule); in full-face view, eyes set above midpoint of head capsule; in profile, eye set anteriad of midline of head capsule; eyes elliptical. In full-face view, frontal carinae straight, divergent posteriad; frontal lobes straight in front of antennal insertion. Anterior clypeal margin broadly and evenly convex; clypeal psammophore set below midpoint of clypeus; palp formula 6,4. Five mandibular teeth in major worker; mandibles triangular, weakly incurved; third mandibular tooth distinctly shorter than apical tooth and teeth numbers two and four; masticatory margin of mandibles approximately aligned vertically or weakly oblique. Mesosoma. Integument of pronotum, mesonotum and mesopleuron shining and mainly smooth, vestigial shagreenation most noticeable on humeri and mesopleuron; anterior mesosoma in profile broadly convex; erect pronotal setae short and often expanded distally, at times clavate; in profile, metanotal groove shallow, broadly V- or U-shaped; propodeum shining and generally smooth, with only weak, indistinct shagreenation; propodeum always smoothly rounded; propodeal dorsum and declivity confluent; erect propodeal setae present and abundant (at least a dozen); appressed propodeal setae long and closely aligned, creating pubescence; propodeal spiracle situated on or beside declivitous face of propodeum, and longer (length ≥ 0.50
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<normalizedToken originalValue="×">x</normalizedToken>
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height of propodeum). Petiole. In
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<pageBreakToken pageId="166" pageNumber="167" start="start">profile</pageBreakToken>
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, petiolar node squamiform; in full-face view, shape of petiolar node square with rounded angles; node shining and faintly shagreenate-microreticulate. Gaster. Gaster shining with superficial microreticulation; pilosity of first gastral tergite consisting of thick, often distally flattened, erect setae over well-spaced, short, appressed setae. General characters. Colour reddish-orange, gaster brown.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="166" pageNumber="167" type="description">
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<paragraph pageId="166" pageNumber="167">Measurements.</paragraph>
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<paragraph pageId="166" pageNumber="167">Worker (n = 8): CI 90-117; EI 20-32; EL 0.19-0.31; HL 0.67-1.32; HW 0.60-1.55; ML 0.98-1.87; MTL 0.71-0.95; PpH 0.09-0.15; PpL 0.43-0.69; SI 70-158; SL 0.95-1.08</paragraph>
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</subSubSection>
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<subSubSection pageId="166" pageNumber="167" type="comments">
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<paragraph pageId="166" pageNumber="167">Comments.</paragraph>
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<paragraph pageId="166" pageNumber="167">
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<taxonomicName class="Insecta" family="Formicidae" genus="Melophorus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Melophorus graciliceps" order="Hymenoptera" pageId="166" pageNumber="167" phylum="Arthropoda" rank="species" species="graciliceps">Melophorus graciliceps</taxonomicName>
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has a very wide distribution and has been recorded from all mainland Australian states except the ACT. This ant is distinguishable from all others except
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<taxonomicName lsidName="M. lissotriches" pageId="166" pageNumber="167" rank="species" species="lissotriches">M. lissotriches</taxonomicName>
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by virtue of the combination of silvery appressed pubescence and modified, erect setae. The species differs from
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<taxonomicName lsidName="M. lissotriches" pageId="166" pageNumber="167" rank="species" species="lissotriches">M. lissotriches</taxonomicName>
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in terms of the appearance of the frontal carinae (major worker) which are concave in this ant and weakly convex in
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<taxonomicName lsidName="M. lissotriches" pageId="166" pageNumber="167" rank="species" species="lissotriches">M. lissotriches</taxonomicName>
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, and the appearance of the mesonotal groove and the position of the compound eyes (minor worker). Molecular sequencing has been only partially successful, but a three-gene tree indicates a close relationship between
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<taxonomicName lsidName="M. graciliceps" pageId="166" pageNumber="167" rank="species" species="graciliceps">M. graciliceps</taxonomicName>
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and
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<taxonomicName lsidName="M. biroi" pageId="166" pageNumber="167" rank="species" species="biroi">M. biroi</taxonomicName>
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. On the basis of morphology, however, we predict that more inclusive sampling will reveal the former will still fall within the
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<taxonomicName lsidName="M. mjobergi" pageId="166" pageNumber="167" rank="species" species="mjobergi">M. mjobergi</taxonomicName>
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clade.
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</paragraph>
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<paragraph pageId="166" pageNumber="167">
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In general, this species prefers drier areas that support mallee or savanna vegetation, and appears to favour dunes. However, there is one record from a paddock (Coombah, NSW). One interesting note refers to the nest of this ant as being (verbatim) 'strange nest, deep, narrow cone, smooth, a perfect insect trap.' However, the principal author of this paper found a nest that was unremarkable, and it seems more likely the author of the label (B. B. Lowery) may have somehow confused the entrance burrow of an
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<taxonomicName class="Insecta" family="Formicidae" genus="Aphaenogaster" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Aphaenogaster" order="Hymenoptera" pageId="166" pageNumber="167" phylum="Arthropoda" rank="genus">Aphaenogaster</taxonomicName>
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species (known to make that sort of nest) with the domicile of this
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<taxonomicName class="Insecta" family="Formicidae" genus="Melophorus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Melophorus" order="Hymenoptera" pageId="166" pageNumber="167" phylum="Arthropoda" rank="genus">Melophorus</taxonomicName>
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. Six workers collected at Yathong, NSW, were also taken in a malaise trap, indicating this ant may climb on vegetation if the need arises.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="166" pageNumber="167" type="etymology">
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<paragraph pageId="166" pageNumber="167">Etymology.</paragraph>
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<paragraph pageId="166" pageNumber="167">
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Latin
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<taxonomicName lsidName="gracilis" pageId="166" pageNumber="167" rank="species" species="gracilis">gracilis</taxonomicName>
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(
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<normalizedToken originalValue="‘slender’">'slender'</normalizedToken>
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) plus -ceps (
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<normalizedToken originalValue="‘-headed’">'-headed'</normalizedToken>
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[from caput]); adjective in the nominative singular.
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</paragraph>
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<caption pageId="166" pageNumber="167">
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<paragraph pageId="166" pageNumber="167">
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Figure 36.
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<taxonomicName class="Insecta" family="Formicidae" genus="Melophorus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Melophorus graciliceps" order="Hymenoptera" pageId="166" pageNumber="167" phylum="Arthropoda" rank="species" species="graciliceps">Melophorus graciliceps</taxonomicName>
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sp. n.: major worker paratype (ANIC32-900175-top ant) frons (a), profile (b) and dorsum (c); minor worker holotype (ANIC32-900175-bottom ant) frons (d), profile (e) and dorsum (f); distribution map for the species (g). Low resolution scale bars: 1 mm (b, c); 0.5 mm (a, e, f); 0.2 mm (d).
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</paragraph>
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</caption>
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</subSubSection>
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</treatment>
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</document> |