146 lines
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146 lines
15 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.372.6665" ID-GBIF-Dataset="51a5d1e4-cd9e-4114-8976-249d1e4d4eb8" ID-PMC="PMC3909802" ID-Pensoft-Pub="1313-2970-372-17" ID-PubMed="24493956" ID-ZBK="F21A2F551F464C6492CAFABBFCD9E7A7" ModsDocAuthor="" ModsDocDate="2014" ModsDocID="1313-2970-372-17" ModsDocOrigin="ZooKeys 372" ModsDocTitle="The second confirmed record of the scorpion genus Chactas Gervais, 1844 (Scorpiones, Chactidae) from Ecuador with description of a new species from the Amazonian Province of Sucumbíos" checkinTime="1451246414941" checkinUser="pensoft" docAuthor="Lourenco, Wilson R." docDate="2014" docId="1E4DEDAE68F07330CF283A30963C8658" docLanguage="en" docName="ZooKeys 372: 17-26" docOrigin="ZooKeys 372" docSource="http://dx.doi.org/10.3897/zookeys.372.6665" docTitle="Chactas moreti Lourenco, 2014, sp. n." docType="treatment" docUuid="8FDFBB1B-E14C-4A41-BBAA-A3EE95BEA6C7" docUuidSource="ZooBank" docVersion="4" lastPageNumber="21" masterDocId="A15CFC22DA38FFAEFFB4FFD2FFAEFFBF" masterDocTitle="The second confirmed record of the scorpion genus Chactas Gervais, 1844 (Scorpiones, Chactidae) from Ecuador with description of a new species from the Amazonian Province of Sucumbios" masterLastPageNumber="26" masterPageNumber="17" pageNumber="19" updateTime="1668157514723" 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>The second confirmed record of the scorpion genus Chactas Gervais, 1844 (Scorpiones, Chactidae) from Ecuador with description of a new species from the Amazonian Province of Sucumbios</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>Lourenco, Wilson R.</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>2014</mods:date>
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<mods:detail type="volume">
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<mods:number>372</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>17</mods:start>
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<mods:end>26</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.372.6665</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.372.6665</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-372-17</mods:identifier>
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<mods:identifier type="ZBK">F21A2F551F464C6492CAFABBFCD9E7A7</mods:identifier>
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<mods:identifier type="ZooBank">F21A2F551F464C6492CAFABBFCD9E7A7</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152050635" LSID="urn:lsid:zoobank.org:act:8FDFBB1B-E14C-4A41-BBAA-A3EE95BEA6C7" httpUri="http://treatment.plazi.org/id/1E4DEDAE68F07330CF283A30963C8658" lastPageId="4" lastPageNumber="21" pageId="2" pageNumber="19">
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<subSubSection pageId="2" pageNumber="19" type="nomenclature">
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<paragraph pageId="2" pageNumber="19">
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<taxonomicName LSID="http://zoobank.org/8FDFBB1B-E14C-4A41-BBAA-A3EE95BEA6C7" class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas moreti" order="Scorpiones" pageId="2" pageNumber="19" phylum="Arthropoda" rank="species" species="moreti">Chactas moreti</taxonomicName>
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<taxonomicNameLabel pageId="2" pageNumber="19">sp. n.</taxonomicNameLabel>
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Figs 1-5, 7-9, 11-12, 14-17
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="19" type="material examined">
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<paragraph pageId="2" pageNumber="19">Material examined.</paragraph>
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<paragraph pageId="2" pageNumber="19">
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Ecuador, Province of
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<normalizedToken originalValue="Sucumbíus">Sucumbius</normalizedToken>
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, San Pablo de Kantesiya, near to the Aguarico River, 20/V/1985 (J.-M. Touzet & P. Moret). Rainforest, under rotten log.
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</paragraph>
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<paragraph pageId="2" pageNumber="19">
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Male holotype, one male and two female paratypes. Deposited in the
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<normalizedToken originalValue="Muséum">Museum</normalizedToken>
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national
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<normalizedToken originalValue="d’Histoire">d'Histoire</normalizedToken>
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naturelle, Paris.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="19" type="etymology">
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<paragraph pageId="2" pageNumber="19">Etymology.</paragraph>
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<paragraph pageId="2" pageNumber="19">
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Specific name honours Dr. Pierre Moret
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<normalizedToken originalValue="Université">Universite</normalizedToken>
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de Toulouse - Le Mirail, who sends us the specimens and donated it to our collections.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="21" pageId="2" pageNumber="19" type="diagnosis">
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<paragraph pageId="2" pageNumber="19">Diagnosis.</paragraph>
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<paragraph pageId="2" pageNumber="19">
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Moderate in size with the male holotype being 43.1 mm in total length and 40.6 mm for the female paratype. Coloration blackish-brown, except for the venter which is reddish-yellow and legs which are reddish. Body and appendages very weakly granulated or smooth, with minute punctation. Pectines with 8 teeth in males and 8-9 in females. Trichobothrial pattern type C neobothriotaxic
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<normalizedToken originalValue="‘majorante’">'majorante'</normalizedToken>
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. Chela with 4 ventral trichobothria; patella with 5 ventral and 17 external trichobothria. Sexual dimorphism strongly marked by distinct morphometric values (see measurements after description).
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</paragraph>
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<paragraph pageId="2" pageNumber="19">
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Relationships. The new species can be distinguished from others in the genus
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas" order="Scorpiones" pageId="2" pageNumber="19" phylum="Arthropoda" rank="genus">Chactas</taxonomicName>
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, and in particular from
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="2" pageNumber="19" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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<normalizedToken originalValue="Lourenço">Lourenco</normalizedToken>
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, 1995 which is distributed in Ecuadorian Andes, by the following features: (i) a generally darker coloration, blackish-brown, whereas
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="2" pageNumber="19" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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is overall reddish-yellow to reddish-brown, (ii) a smaller global size and quite distinct morphometric values - see measurements after the description, (iii) metasomal segments are very weakly granulated and vesicle totally smooth in the new species, (iv) anterior margin of male carapace is concave in the new species, whereas the male carapace of
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="2" pageNumber="19" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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is convex.
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</paragraph>
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<paragraph pageId="2" pageNumber="19">Description based on holotype and paratypes.</paragraph>
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<paragraph lastPageId="4" lastPageNumber="21" pageId="2" pageNumber="19">
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Coloration. Generally blackish-brown. Prosoma: carapace blackish-brown. Tergites blackish-brown, paler than the carapace and with a central longitudinal yellowish
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<pageBreakToken pageId="3" pageNumber="20" start="start">stripe</pageBreakToken>
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. Metasomal segments blackish-brown, with blackish zones over carinae; vesicle reddish-brown. Chelicerae reddish-yellow to reddish-brown with diffused variegated brownish spots; fingers uniformly dense and blackish; some teeth are reddish. Pedipalps blackish-brown; femur blackish; patella blackish-brown, darker than chela; chela
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<pageBreakToken pageId="4" pageNumber="21" start="start">hand</pageBreakToken>
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very dark reddish-brown; finger blackish. Legs reddish-yellow. Venter and sternites reddish with some yellowish zones; pectines and genital operculum yellow to reddish-yellow.
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</paragraph>
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<paragraph pageId="4" pageNumber="21">
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Morphology. Anterior margin of carapace with a weak to moderate concavity; lustrous and acarinate, with minute punctation behind median eyes; furrows shallow. Sternum pentagonal, wider than long. Tergites acarinate, smooth and shiny with punctations. Pectinal tooth count 8-8 (male holotype) 8-8 (male paratype), 8-8 and 9-9 (female paratypes), fulcra absent. Sternites smooth and shiny with punctations, VII acarinate; spiracles moderate in size and oval to round in shape. Metasomal segments with a lustrous tegument; dorsal carinae weak to moderate on all segments, but better marked in males; latero-dorsal carinae vestigial on segments I to III, absent on IV; other carinae absent; segment V with small spinoid granulations on distal half of ventral aspect; vesicle smooth and lustrous. Pedipalps: Femur with dorsal internal, dorsal external and ventral internal carinae moderately to strongly marked; ventral external carina absent; dorsal and ventral faces without granulations, smooth; internal face weakly granular. Patella smooth and lustrous; dorsal internal and ventral internal carinae moderate to weak; ventral external carinae weak to vestigial; other carinae absent. Chela lustrous; ventral median and dorsal internal carinae weak; other carinae vestigial or absent; internal face with a few weak granules, other faces smooth. Dentate margins on movable and fixed fingers with a median denticle row composed of 7-8 groups of granules. Chelicerae with the dentition typical of the family
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<taxonomicName family="Chactidae" lsidName="" pageId="4" pageNumber="21" rank="family">Chactidae</taxonomicName>
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(Vachon, 1963), and with intense setation ventrally. Trichobothriotaxy type C; neobothriotaxic
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<normalizedToken originalValue="‘majorante’">'majorante'</normalizedToken>
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(
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<bibRefCitation author="Vachon, M" journalOrPublisher="Paris" pageId="7" pageNumber="24" pagination="857 - 958" title="Etude des caracteres utilises pour classer les familles et les genres de Scorpions (Arachnides). 1. La trichobothriotaxie en arachnologie. Sigles trichobothriaux et types de trichobothriotaxie chez les Scorpions." volumeTitle="Bulletin du Museum national d'Histoire naturelle" year="1974">Vachon 1974</bibRefCitation>
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); chela with 4 ventral trichobothria; patella with 5 ventral and 17 external trichobothria. Ventral surface of tarsus in legs III and IV with a median series of small spines and 5-6 external and internal setae.
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</paragraph>
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<paragraph pageId="4" pageNumber="21">Morphometric values (in mm) of male holotype and female paratype. Total length (including telson) 43.1/40.6. Carapace: length 5.6/6.0; anterior width 3.8/4.2; posterior width 5.8/6.4. Mesosoma length 12.2/12.4. Metasomal segment I: length 2.5/2.3, width 2.8/3.0; II: length 2.8/2.5, width 2.5/2.5; III: length 3.3/2.6, width 2.4/2.4; IV: length 4.2/3.3, width 2.3/2.3; V: length 6.1/5.6, width 2.2/2.3, depth 1.9/1.9. Telson length 6.4/5.9. Vesicle: width 2.4/2.3, depth 2.0/1.8. Pedipalp length 25.2/21/4: femur length 6.8/5.3, width 1.8/1.9; patella length 6.8/5.3, width 1.9/2.2; chela length 11.6/10.8, width 2.9/3.4, depth 2.7/3.0; movable finger length 5.0/5.4.</paragraph>
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<paragraph pageId="4" pageNumber="21">
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Comparative morphometric values (in mm) of male holotype and female non-type of
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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. Total length (including telson) 51.9/45.4. Carapace: length 7.6/6.8; anterior width 5.0/4.4; posterior width 7.3/7.1. Mesosoma length 12.6/14.7. Metasomal segment I: length 3.3/2.5, width 4.0/2.9; II: length 3.4/2.7, width 3.4/2.7; III: length 4.0/3.1, width 3.4/2.6; IV: length 5.0/3.4, width 3.2/2.5; V: length 7.7/5.9, width 3.1/2.4, depth 2.8/2.1. Telson length 8.3/6.3. Vesicle: width 3.2/2.4, depth 2.8/2.2. Pedipalp length 35.8/24/1: femur length 9.8/6.1, width 2.3/2.3; patella length 10.1/6.2, width 2.3/2.6; chela length 15.9/11.8, width 3.2/3.6, depth 2.8/3.6; movable finger length 6.2/6.0.
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</paragraph>
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<caption pageId="4" pageNumber="21">
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<paragraph pageId="4" pageNumber="21">
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Figures 1-4.
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas moreti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="moreti">Chactas moreti</taxonomicName>
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sp. n., male holotype and female paratype. Dorsal and ventral aspects.
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</paragraph>
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</caption>
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<caption pageId="4" pageNumber="21">
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<paragraph pageId="4" pageNumber="21">
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Figures 5-6. Carapace and chelicerae of male holotypes of
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas moreti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="moreti">Chactas moreti</taxonomicName>
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sp. n. and
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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.
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</paragraph>
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</caption>
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<caption pageId="4" pageNumber="21">
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<paragraph pageId="4" pageNumber="21">
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Figures 7-9.
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas moreti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="moreti">Chactas moreti</taxonomicName>
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sp. n., male holotype. 7 Chelicera, dorsal aspect 8 Disposition of granulation over the dentate margins of the pedipalp-chela movable finger 9 Metasomal segments V and telson, lateral aspect 10 Idem for
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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, male holotype (scale bars = 2 mm).
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</paragraph>
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</caption>
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<caption pageId="4" pageNumber="21">
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<paragraph pageId="4" pageNumber="21">
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Figures 11-17. Trichobothrial pattern. 11-12, 14-17
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas moreti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="moreti">Chactas moreti</taxonomicName>
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sp. n., male holotype 11-12 Chela, dorso-external and ventral aspects 13 Idem for
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<taxonomicName class="Arachnida" family="Chactidae" genus="Chactas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chactas mahnerti" order="Scorpiones" pageId="4" pageNumber="21" phylum="Arthropoda" rank="species" species="mahnerti">Chactas mahnerti</taxonomicName>
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, male holotype 14-16 Patella, dorsal, external and ventral aspects 17 Femur, dorsal aspect (scale bars = 2 mm).
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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> |