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<document id="F06AF7DBD6519C05E8A12EC6C28F0C0F" ID-DOI="10.5281/zenodo.180070" ID-GBIF-Dataset="2622ce69-15e9-40d4-891b-850491e5f8fb" ID-ISSN="1175-5326" ID-Zenodo-Dep="180070" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460030220392" checkinUser="plazi" docAuthor="Ballesteros, Alfonso &amp; Francke, Oscar F." docDate="2007" docId="03D84C6B7E49FFB5FAD754D0FCB36283" docLanguage="en" docName="zt01665p068.pdf" docOrigin="Zootaxa 1665" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Eremocosta arenarum Ballesteros &amp; Francke, 2007, sp. nov." docType="treatment" docVersion="9" lastPageNumber="67" masterDocId="FFE134137E48FFB3FA405277FFEE6371" masterDocTitle="A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)" masterLastPageNumber="68" masterPageNumber="61" pageNumber="62" updateTime="1698234103786" updateUser="plazi">
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<mods:title id="2A7CA02377B1DE91F947486802F3BD9B">A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)</mods:title>
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<mods:name id="1F45DB9187E89FB4A5D0A0F6BB7A4282" type="personal">
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<mods:namePart id="02CBBD731ED9C784F9D28E3C41328501">Ballesteros, Alfonso</mods:namePart>
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<mods:namePart id="D34C768148F9D547F2CF7D6FADEBD0CB">Francke, Oscar F.</mods:namePart>
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<mods:date id="0DEFDB6C2DFEA642FA89B90E1DE66A85">2007</mods:date>
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<treatment id="03D84C6B7E49FFB5FAD754D0FCB36283" ID-DOI="http://doi.org/10.5281/zenodo.6248449" ID-GBIF-Taxon="119382346" ID-Zenodo-Dep="6248449" LSID="urn:lsid:plazi:treatment:03D84C6B7E49FFB5FAD754D0FCB36283" httpUri="http://treatment.plazi.org/id/03D84C6B7E49FFB5FAD754D0FCB36283" lastPageId="6" lastPageNumber="67" pageId="1" pageNumber="62">
<subSubSection id="C36BAEF67E49FFB2FAD754D0FEEA6595" pageId="1" pageNumber="62" type="nomenclature">
<paragraph id="8BCEFD7D7E49FFB2FAD754D0FDE465B0" blockId="1.[151,522,1703,1764]" box="[151,522,1703,1729]" pageId="1" pageNumber="62">
<heading id="D0864A117E49FFB2FAD754D0FDE465B0" bold="true" box="[151,522,1703,1729]" fontSize="11" level="1" pageId="1" pageNumber="62" reason="1">
<emphasis id="B905216F7E49FFB2FAD754D0FDE465B0" bold="true" box="[151,522,1703,1729]" pageId="1" pageNumber="62">
<taxonomicName id="4C7186FE7E49FFB2FAD754D0FE4865B0" ID-CoL="6GGLK" box="[151,422,1703,1729]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="1" pageNumber="62" phylum="Arthropoda" rank="species" species="arenarum" status="sp. nov.">
<emphasis id="B905216F7E49FFB2FAD754D0FE4865B0" bold="true" box="[151,422,1703,1729]" italics="true" pageId="1" pageNumber="62">Eremocosta arenarum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2369C147E49FFB2FBED54D0FDE465B0" box="[429,522,1703,1729]" pageId="1" pageNumber="62" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BCEFD7D7E49FFB2FAD754BDFEEA6595" blockId="1.[151,522,1703,1764]" box="[151,260,1738,1764]" pageId="1" pageNumber="62">
<figureCitation id="134AE1F87E49FFB2FAD754BDFEEA6595" box="[151,260,1738,1764]" captionStart-0="FIGURES 1 2" captionStart-1="FIGURE 3" captionStart-2="FIGURE 4" captionStart-3="FIGURES 5 6" captionStartId-0="3.[151,269,1587,1611]" captionStartId-1="4.[151,255,709,733]" captionStartId-2="4.[151,255,1613,1637]" captionStartId-3="5.[151,269,1474,1498]" captionTargetBox-0="[309,1285,440,1586]" captionTargetBox-1="[206,1422,194,701]" captionTargetBox-2="[466,1125,780,1573]" captionTargetBox-3="[331,1217,234,1377]" captionTargetId-0="figure@3.[302,1285,401,1591]" captionTargetId-1="figure@4.[181,1425,194,702]" captionTargetId-2="figure@4.[436,1129,763,1574]" captionTargetId-3="figure@5.[302,1285,194,1450]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="4" captionTargetPageId-3="5" captionText-0="FIGURES 1 2. Eremocosta arenarum sp. nov. 1 Ectal view of right male chelicera lateral view, 2 Mesal view of right male chelicera. Scale 1 mm." captionText-1="FIGURE 3. Eremocosta arenarum sp. nov. Detail of male cheliceral fixed finger, showing the mesoventral groove." captionText-2="FIGURE 4. Eremocosta arenarum sp. nov. Sternites X XII of males showing ctenidia" captionText-3="FIGURES 5 6. Eremocosta arenarum sp. nov. 5 Ectal view of right chelicerae of the putative female, 6 Mesal view of right putative female chelicera. Scale 1 mm." httpUri-0="https://zenodo.org/record/180071/files/figure.png" httpUri-1="https://zenodo.org/record/180072/files/figure.png" httpUri-2="https://zenodo.org/record/180073/files/figure.png" httpUri-3="https://zenodo.org/record/180074/files/figure.png" pageId="1" pageNumber="62">Figs. 16</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C36BAEF67E49FFB1FAD7556DFF3A63AB" lastPageId="2" lastPageNumber="63" pageId="1" pageNumber="62" type="materials_examined">
<paragraph id="8BCEFD7D7E49FFB2FAD7556DFC4064F5" blockId="1.[151,1436,1818,2004]" pageId="1" pageNumber="62">
<emphasis id="B905216F7E49FFB2FAD7556DFEBE6445" bold="true" box="[151,336,1818,1844]" pageId="1" pageNumber="62">
<typeStatus id="54CA43DF7E49FFB2FAD7556DFF3C6445" box="[151,210,1818,1844]" pageId="1" pageNumber="62">Type</typeStatus>
material:
</emphasis>
<typeStatus id="54CA43DF7E49FFB2FB18556DFE2B6445" box="[344,453,1818,1844]" pageId="1" pageNumber="62" type="holotype">Holotype</typeStatus>
and six
<typeStatus id="54CA43DF7E49FFB2F869556DFD776445" box="[553,665,1818,1844]" pageId="1" pageNumber="62" type="paratype">paratypes</typeStatus>
from Dunas de Bilbao, (
<geoCoordinate id="EE459BBA7E49FFB2F980556DFB8A6445" box="[960,1124,1818,1844]" direction="north" orientation="latitude" pageId="1" pageNumber="62" precision="1" value="25.426434">25° 25.586N</geoCoordinate>
,
<geoCoordinate id="EE459BBA7E49FFB2FE31556DFAC86445" box="[1137,1318,1818,1844]" direction="west" orientation="longitude" pageId="1" pageNumber="62" precision="1" value="-102.89423">102° 53.654W</geoCoordinate>
, 1 0
<quantity id="4C8950987E49FFB2FF18556DFA766445" box="[1368,1432,1818,1844]" metricMagnitude="1" metricUnit="m" metricValue="9.8" pageId="1" pageNumber="62" unit="m" value="98.0">98 m</quantity>
, Municipio Viesca, Coahuila,
<collectingCountry id="F366BDED7E49FFB2FBAE5535FDA7642D" box="[494,585,1858,1884]" name="Mexico" pageId="1" pageNumber="62">México</collectingCountry>
)
<date id="FFCFDBBD7E49FFB2F8195535FD1B642D" box="[601,757,1858,1884]" pageId="1" pageNumber="62" value="2006-07-20">20 July 2006</date>
, Oscar F. Francke, Kari J. McWest, Abigail Jaimes-Barrientos, Milagros Córdova-Athanasiadis and Alfonso Ballesteros leg.
</paragraph>
<paragraph id="8BCEFD7D7E49FFB1FA8755E5FF3A63AB" blockId="1.[151,1436,1818,2004]" lastBlockId="2.[151,1437,152,2018]" lastPageId="2" lastPageNumber="63" pageId="1" pageNumber="62">
<typeStatus id="54CA43DF7E49FFB2FA8755E5FEEF64DD" box="[199,257,1938,1964]" pageId="1" pageNumber="62">Type</typeStatus>
depositories:
<typeStatus id="54CA43DF7E49FFB2FBF255E5FDF164DD" box="[434,543,1938,1964]" pageId="1" pageNumber="62" type="holotype">Holotype</typeStatus>
CNAN-T0264, and
<typeStatus id="54CA43DF7E49FFB2F96455E5FC7A64DD" box="[804,916,1938,1964]" pageId="1" pageNumber="62" type="paratype">paratypes</typeStatus>
CNAN-T0265 (putative female), CNAN- T0266 (one male and one immature) deposited in the Colección Nacional de Arácnidos, Instituto de Biología,
<collectionCode id="ED6065B87E4AFFB1FAD752EFFF1A63C3" box="[151,244,152,178]" httpUri="http://grbio.org/cool/10ei-x9nj" name="Universidad Nacional Autonoma de Mexico" pageId="2" pageNumber="63">UNAM</collectionCode>
,
<collectingCountry id="F366BDED7E4AFFB1FB4352EFFEB263C3" box="[259,348,152,178]" name="Mexico" pageId="2" pageNumber="63">México</collectingCountry>
City. Three male
<typeStatus id="54CA43DF7E4AFFB1F87E52EFFD4063C3" box="[574,686,152,178]" pageId="2" pageNumber="63" type="paratype">paratypes</typeStatus>
deposited in the American Museum of Natural History, New York.
</paragraph>
</subSubSection>
<subSubSection id="C36BAEF67E4AFFB1FA875290FEAA625B" pageId="2" pageNumber="63" type="etymology">
<paragraph id="8BCEFD7D7E4AFFB1FA875290FEAA625B" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA875290FEB96270" bold="true" box="[199,343,231,257]" pageId="2" pageNumber="63">Etymology:</emphasis>
The specific epithet is the plural genitive of the Latin noun for sand “
<emphasis id="B905216F7E4AFFB1FEE1529FFB126270" box="[1185,1276,232,257]" italics="true" pageId="2" pageNumber="63">arena”,</emphasis>
and it means “of the sands”.
</paragraph>
</subSubSection>
<subSubSection id="C36BAEF67E4AFFB1FA875340FEAE60F3" pageId="2" pageNumber="63" type="diagnosis">
<paragraph id="8BCEFD7D7E4AFFB1FA875340FEAE60F3" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA875340FEA76220" bold="true" box="[199,329,311,337]" pageId="2" pageNumber="63">Diagnosis:</emphasis>
The new species belongs in the
<taxonomicName id="4C7186FE7E4AFFB1F942534FFC696220" box="[770,903,312,337]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4AFFB1F942534FFC696220" box="[770,903,312,337]" italics="true" pageId="2" pageNumber="63">montezuma</emphasis>
</taxonomicName>
species group, along with
<taxonomicName id="4C7186FE7E4AFFB1FEAD534FFEEB620B" authority="Roewer" authorityName="Roewer" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4AFFB1FEAD534FFA756220" box="[1261,1435,312,337]" italics="true" pageId="2" pageNumber="63">E. montezuma</emphasis>
(Roewer)
</taxonomicName>
,
<taxonomicName id="4C7186FE7E4AFFB1FB555317FE35620B" authority="Muma" authorityName="Muma" box="[277,475,352,378]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4AFFB1FB555317FE9D6208" box="[277,371,352,377]" italics="true" pageId="2" pageNumber="63">E. fusca</emphasis>
(Muma)
</taxonomicName>
and
<taxonomicName id="4C7186FE7E4AFFB1F8545317FBD4620B" authority="Vazquez &amp; Gavino-Rojas" authorityName="Vazquez &amp; Gavino-Rojas" box="[532,1082,352,378]" class="Arachnida" family="Eremobatidae" genus="Eremopus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="acuitlapanensis">
<emphasis id="B905216F7E4AFFB1F8545317FD036208" box="[532,749,352,377]" italics="true" pageId="2" pageNumber="63">E. acuitlapanensis</emphasis>
(Vázquez &amp; Gaviño-Rojas)
</taxonomicName>
, and they differ from all other
<taxonomicName id="4C7186FE7E4AFFB1FAD753FFFECC62D0" box="[151,290,392,417]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="genus">
<emphasis id="B905216F7E4AFFB1FAD753FFFECC62D0" box="[151,290,392,417]" italics="true" pageId="2" pageNumber="63">Eremocosta</emphasis>
</taxonomicName>
members in bearing abdominal ctenida. This new species is readily differentiated from the rest of the
<taxonomicName id="4C7186FE7E4AFFB1FA8253C7FE3762B8" box="[194,473,432,457]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4AFFB1FA8253C7FE3762B8" box="[194,473,432,457]" italics="true" pageId="2" pageNumber="63">Eremocosta montezuma</emphasis>
</taxonomicName>
species group, because it is the only one in which the males possess two ctenidia, whereas the males of the other species have four ctenidia.
<taxonomicName id="4C7186FE7E4AFFB1F90553AFFC026280" box="[837,1004,472,497]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4AFFB1F90553AFFC026280" box="[837,1004,472,497]" italics="true" pageId="2" pageNumber="63">E. montezuma</emphasis>
</taxonomicName>
and
<taxonomicName id="4C7186FE7E4AFFB1FE6553AFFB6A6280" box="[1061,1156,472,497]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4AFFB1FE6553AFFB6A6280" box="[1061,1156,472,497]" italics="true" pageId="2" pageNumber="63">E. fusca</emphasis>
</taxonomicName>
, differ in that both possess a shallow but distinct fondal notch, whereas
<taxonomicName id="4C7186FE7E4AFFB1F8945077FC896168" box="[724,871,512,537]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4AFFB1F8945077FC896168" box="[724,871,512,537]" italics="true" pageId="2" pageNumber="63">E. arenarum</emphasis>
</taxonomicName>
lacks that notch. Differences in cheliceral dentition of the movable finger are also present; according to the figures in
<bibRefCitation id="EFE0808C7E4AFFB1F9AD505FFB056133" author="Muma" box="[1005,1259,552,578]" pageId="2" pageNumber="68" refString="Muma, M. H. (1970) A systematic review of North American, Central American, and West Indian Solpugida (Arthropoda: Arachnida). Arthropods of Florida and Neighboring land Areas Vol. 5, Florida Department of Agriculture and Consumer Services, Florida, U. S. A., 62 pp." type="book" year="1970">Muma (1970, fig. 3.)</bibRefCitation>
<taxonomicName id="4C7186FE7E4AFFB1FEB4505FFA756130" box="[1268,1435,552,577]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4AFFB1FEB4505FFA756130" box="[1268,1435,552,577]" italics="true" pageId="2" pageNumber="63">E. montezuma</emphasis>
</taxonomicName>
possesses an apical tooth near the base of principal tooth, and the two intermediate teeth grow on the base of the principal tooth.
<taxonomicName id="4C7186FE7E4AFFB1FBC3500FFE0C61E0" box="[387,482,632,657]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4AFFB1FBC3500FFE0C61E0" box="[387,482,632,657]" italics="true" pageId="2" pageNumber="63">E. fusca</emphasis>
</taxonomicName>
resembles
<taxonomicName id="4C7186FE7E4AFFB1F82B500FFCEF61E0" box="[619,769,632,657]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4AFFB1F82B500FFCEF61E0" box="[619,769,632,657]" italics="true" pageId="2" pageNumber="63">E. arenarum</emphasis>
</taxonomicName>
in having well-separated principal and apical teeth, but intermediate teeth are considerably smaller in
<taxonomicName id="4C7186FE7E4AFFB1F8FB50D7FCF561C8" box="[699,795,672,697]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4AFFB1F8FB50D7FCF561C8" box="[699,795,672,697]" italics="true" pageId="2" pageNumber="63">E. fusca</emphasis>
</taxonomicName>
than in
<taxonomicName id="4C7186FE7E4AFFB1F93D50D7FBFF61C8" box="[893,1041,672,697]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4AFFB1F93D50D7FBFF61C8" box="[893,1041,672,697]" italics="true" pageId="2" pageNumber="63">E. arenarum</emphasis>
</taxonomicName>
(
<emphasis id="B905216F7E4AFFB1FE6450D7FBA661C8" box="[1060,1096,672,697]" italics="true" pageId="2" pageNumber="63">c.f.</emphasis>
with figs. 1 and
<quantity id="4C8950987E4AFFB1FF5250D7FAAE61CB" box="[1298,1344,672,698]" metricMagnitude="-2" metricUnit="m" metricValue="5.08" pageId="2" pageNumber="63" unit="in" value="2.0">2 in</quantity>
Muma, 1987). The most similar species to
<taxonomicName id="4C7186FE7E4AFFB1F80250BFFD396190" box="[578,727,712,737]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4AFFB1F80250BFFD396190" box="[578,727,712,737]" italics="true" pageId="2" pageNumber="63">E. arenarum</emphasis>
</taxonomicName>
seems to be
<taxonomicName id="4C7186FE7E4AFFB1F93A50BFFB296190" box="[890,1223,712,737]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="acuitlapanensis">
<emphasis id="B905216F7E4AFFB1F93A50BFFB296190" box="[890,1223,712,737]" italics="true" pageId="2" pageNumber="63">Eremocosta acuitlapanensis</emphasis>
</taxonomicName>
from Acuitlapan, Guerrero, in that males of both species share the possession of long ctenidia and a shallow and indistinct fondal notch. However, the “tooth like” process that
<taxonomicName id="4C7186FE7E4AFFB1F89C516FFC5B6040" box="[732,949,792,817]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="2" pageNumber="63" phylum="Arthropoda" rank="species" species="acuitlapanensis">
<emphasis id="B905216F7E4AFFB1F89C516FFC5B6040" box="[732,949,792,817]" italics="true" pageId="2" pageNumber="63">E. acuitlapanensis</emphasis>
</taxonomicName>
possesses mesoventrally near the base of the fixed finger (
<bibRefCitation id="EFE0808C7E4AFFB1FB225137FD06602B" author="Vazquez" box="[354,744,832,858]" pageId="2" pageNumber="68" refString="Vazquez, I. M. &amp; Gavino-Rojas, R. (2000) Eremopus acuitlapanensis, a new species (Solifugae, Eremobatidae, Eremobatinae) from Guerrero, Mexico. Journal of Arachnology, 28, 227 - 230." type="journal article" year="2000">Vázquez &amp; Gaviño-Rojas, 2000</bibRefCitation>
), and the number of ctenidia (four instead of two), easily separate them.
</paragraph>
</subSubSection>
<subSubSection id="C36BAEF67E4AFFB0FA8751F8FEAC6484" lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63" type="description">
<paragraph id="8BCEFD7D7E4AFFB1FA8751F8FDF160DB" blockId="2.[151,1437,152,2018]" box="[199,543,911,938]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA8751F8FEB160D8" bold="true" box="[199,351,911,937]" pageId="2" pageNumber="63">Description.</emphasis>
Male
<typeStatus id="54CA43DF7E4AFFB1FBEA51E7FDF260DB" box="[426,540,912,938]" pageId="2" pageNumber="63" type="holotype">Holotype</typeStatus>
:
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA8751CFFE2A608B" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">BL 16.0; CL 5.12; CW 2.12; FFW 0.37; PL 2.37; PW 3.50; PpL 20.0; LI 13.0; LIV 26.0; A/CP 7.87; CW/ FFW 5.72; PL/PW 0.677.</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA87567FFEA7673B" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA87567FFEDE6750" box="[199,304,1032,1057]" italics="true" pageId="2" pageNumber="63">Prosoma</emphasis>
. Pale yellow overall except for the eye tubercle, covered with several hair like bifid setae, and without spines.
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA87562FFB92664B" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA87562FFEA66700" box="[199,328,1112,1137]" italics="true" pageId="2" pageNumber="63">Chelicerae</emphasis>
(
<figureCitation id="134AE1F87E4AFFB1FB1B562FFE206703" box="[347,462,1112,1138]" captionStart-0="FIGURES 1 2" captionStart-1="FIGURE 3" captionStartId-0="3.[151,269,1587,1611]" captionStartId-1="4.[151,255,709,733]" captionTargetBox-0="[309,1285,440,1586]" captionTargetBox-1="[206,1422,194,701]" captionTargetId-0="figure@3.[302,1285,401,1591]" captionTargetId-1="figure@4.[181,1425,194,702]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionText-0="FIGURES 1 2. Eremocosta arenarum sp. nov. 1 Ectal view of right male chelicera lateral view, 2 Mesal view of right male chelicera. Scale 1 mm." captionText-1="FIGURE 3. Eremocosta arenarum sp. nov. Detail of male cheliceral fixed finger, showing the mesoventral groove." httpUri-0="https://zenodo.org/record/180071/files/figure.png" httpUri-1="https://zenodo.org/record/180072/files/figure.png" pageId="2" pageNumber="63">Figs. 13</figureCitation>
). Pale yellow without markings. Fixed finger broad, without teeth on its ventral edge, except for two small denticles at the base, the distal one very small and indistinct; mesoventral groove very shallow, not reaching the base of the finger. Flagellum complex composed exclusively of tubular setae. Mesal row of fondal teeth graded in size from bigger to smaller as follows: I-III-II-IV, ectal row: I-III-IV-II. Fondal notch very shallow and indistinct. Movable finger with two intermediate teeth between the principal and apical teeth, the proximal one slightly bigger than the distal; mesal tooth present.
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA87573FFD7C66FB" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA87573FFED76610" box="[199,313,1352,1377]" italics="true" pageId="2" pageNumber="63">Pedipalpi</emphasis>
. Pale yellow except for dusky markings at the distal end of femur, tibia and tarsus, these fading at the tip. Tarsus and tibia without papillae.
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA8757EFFCA16573" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA8757EFFE8C66C0" box="[199,354,1432,1457]" italics="true" pageId="2" pageNumber="63">Opisthosoma</emphasis>
. The abdomen is also pale yellow but somewhat transparent, appearing brownish due to the color of the viscera. First post-spiracular sternite with two needle-like ctenidia, and slightly curved outwards (
<figureCitation id="134AE1F87E4AFFB1FADF579FFF096573" box="[159,231,1512,1538]" captionStart="FIGURE 4" captionStartId="4.[151,255,1613,1637]" captionTargetBox="[466,1125,780,1573]" captionTargetId="figure@4.[436,1129,763,1574]" captionTargetPageId="4" captionText="FIGURE 4. Eremocosta arenarum sp. nov. Sternites X XII of males showing ctenidia" httpUri="https://zenodo.org/record/180073/files/figure.png" pageId="2" pageNumber="63">Fig. 4</figureCitation>
), which reach the posterior edge of the next sternite.
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA875467FF3E65D3" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA875467FEE86558" box="[199,262,1552,1577]" italics="true" pageId="2" pageNumber="63">Legs.</emphasis>
Leg I pale yellow, legs IIIV dusky at proximal half of the patella. Leg I with one small broad triangular claw at the tip of the palpal tarsus, normally obscured by several bristles. Malleoli on ventral surface of leg IV white. Legs IIIII basitasus and tarsus armed with several spines on ventral and dorso-posterior surface.
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA8754C7FE1065BB" blockId="2.[151,1437,152,2018]" box="[199,510,1712,1738]" pageId="2" pageNumber="63">
<typeStatus id="54CA43DF7E4AFFB1FA8754C7FEC065BB" box="[199,302,1712,1738]" pageId="2" pageNumber="63" type="paratype">Paratype</typeStatus>
(putative female)
</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA8754AFFA616583" blockId="2.[151,1437,152,2018]" box="[199,1423,1752,1778]" pageId="2" pageNumber="63">BL 19.0; CL 7.37; CW 2.62; PL 3.62; PW 5.25; PpL 20.0; LI 18.0; LIV 29.0; A/CP 6.09; PL/PW 0.689.</paragraph>
<paragraph id="8BCEFD7D7E4AFFB1FA875577FED3641B" blockId="2.[151,1437,152,2018]" pageId="2" pageNumber="63">Coloration similar to the male, but eye tubercle dusky instead of dark, and without any markings on pedipalpus and legs. Distal segments of palpus and leg I, appear reddish due to the presence of numerous short and dense bristles.</paragraph>
<paragraph id="8BCEFD7D7E4AFFB0FA87550FFD726273" blockId="2.[151,1437,152,2018]" lastBlockId="3.[151,1436,152,378]" lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63">
<emphasis id="B905216F7E4AFFB1FA87550FFEA664E0" box="[199,328,1912,1937]" italics="true" pageId="2" pageNumber="63">Chelicerae</emphasis>
(
<figureCitation id="134AE1F87E4AFFB1FB1A550FFE3F64E3" box="[346,465,1912,1938]" captionStart="FIGURES 5 6" captionStartId="5.[151,269,1474,1498]" captionTargetBox="[331,1217,234,1377]" captionTargetId="figure@5.[302,1285,194,1450]" captionTargetPageId="5" captionText="FIGURES 5 6. Eremocosta arenarum sp. nov. 5 Ectal view of right chelicerae of the putative female, 6 Mesal view of right putative female chelicera. Scale 1 mm." httpUri="https://zenodo.org/record/180074/files/figure.png" pageId="2" pageNumber="63">Figs. 5, 6</figureCitation>
). Fixed finger principal tooth larger than the anterior tooth, but smaller than the medial tooth. Two intermediate teeth between the principal tooth and the medial tooth, one intermediate tooth between medial and anterior tooth. Fondal teeth graded in size I-III-II-IV in mesal row and III-II-I-IV on ectal row. Movable finger with two intermediate teeth between principal and apical teeth, the distal one smaller than the proximal and only appreciable in mesal view; mesal tooth indistinct, appearing more like a soft ridge below the principal tooth of movable finger.
</paragraph>
<paragraph id="8BCEFD7D7E4BFFB0FA875367FD27620B" blockId="3.[151,1436,152,378]" pageId="3" pageNumber="64">
<emphasis id="B905216F7E4BFFB0FA875367FE8C6258" box="[199,354,272,297]" italics="true" pageId="3" pageNumber="64">Opisthosoma</emphasis>
. Genital sternite without pits, not sclerotized, almost indistinct, triangular shaped and with both edges, anterior and posterior rounded. The apical lobes of the genital opercula seem to connect in the middle on both the anterior and posterior edges.
</paragraph>
<caption id="DF0EADF57E4BFFB0FAD75444FE53651B" httpUri="https://zenodo.org/record/180071/files/figure.png" pageId="3" pageNumber="64" targetBox="[309,1285,440,1586]" targetPageId="3">
<paragraph id="8BCEFD7D7E4BFFB0FAD75444FE53651B" blockId="3.[151,1437,1587,1642]" pageId="3" pageNumber="64">
<emphasis id="B905216F7E4BFFB0FAD75444FEAD653A" bold="true" box="[151,323,1587,1611]" pageId="3" pageNumber="64">FIGURES 12.</emphasis>
<taxonomicName id="4C7186FE7E4BFFB0FB0B5444FDD7653B" box="[331,569,1587,1610]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="3" pageNumber="64" phylum="Arthropoda" rank="species" species="arenarum" status="sp. nov.">
<emphasis id="B905216F7E4BFFB0FB0B5444FDD7653B" box="[331,569,1587,1610]" italics="true" pageId="3" pageNumber="64">Eremocosta arenarum</emphasis>
</taxonomicName>
<emphasis id="B905216F7E4BFFB0F8015444FD79653A" bold="true" box="[577,663,1587,1611]" pageId="3" pageNumber="64">
<taxonomicNameLabel id="A2369C147E4BFFB0F8015444FD79653A" box="[577,663,1587,1611]" pageId="3" pageNumber="64" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
1 Ectal view of right male chelicera lateral view, 2 Mesal view of right male chelicera. Scale 1mm.
</paragraph>
</caption>
<paragraph id="8BCEFD7D7E4BFFB0FA8754ECFEA0645C" blockId="3.[151,1437,1691,2037]" pageId="3" pageNumber="64">
<emphasis id="B905216F7E4BFFB0FA8754ECFEAA65C4" bold="true" box="[199,324,1691,1717]" pageId="3" pageNumber="64">Variation.</emphasis>
Adult males measurements (n= 4): BL 14.016.0; CL 4.625.50; CW 2.002.37; FFW 0.37; PL 2.252.62; PW 3.373.62; PpL 18.019.0; LI 12.013.0; LIV 22.025.0; A/CP 7.037.56; CW/FFW 5.406.4; PL/PW 0.6670.723. Immature: BL 9.0; CL 3.5; CW 0.75; PL 2.0; PW 2.75; PpL 8.0; LI 6 LIV 13.0 A/CP: 4.9.
</paragraph>
<paragraph id="8BCEFD7D7E4BFFB0FA87554CFB6C640C" blockId="3.[151,1437,1691,2037]" pageId="3" pageNumber="64">
Some variation in color is also present, the three male
<typeStatus id="54CA43DF7E4BFFB0F901554CFC5F6424" box="[833,945,1851,1877]" pageId="3" pageNumber="64" type="paratype">paratypes</typeStatus>
show faded dusky markings on the apical end of the patella of pedipalpus, instead of the pale yellow coloration of the
<typeStatus id="54CA43DF7E4BFFB0FE535514FB93640C" box="[1043,1149,1891,1917]" pageId="3" pageNumber="64" type="holotype">holotype</typeStatus>
.
</paragraph>
<paragraph id="8BCEFD7D7E4BFFB0FA8755FCFEAC6484" blockId="3.[151,1437,1691,2037]" pageId="3" pageNumber="64">
The immature
<typeStatus id="54CA43DF7E4BFFB0FB3A55FCFE3164D4" box="[378,479,1931,1957]" pageId="3" pageNumber="64" type="paratype">paratype</typeStatus>
exhibits a cheliceral dentition similar to that of the putative female. The tarsi, metatarsi, tibiae, and distal half of the femora of palpi of the immature are dusky, and its abdomen is somewhat greenish.
</paragraph>
</subSubSection>
<caption id="DF0EADF57E4CFFB7FAD750B2FA8661AC" box="[151,1384,709,733]" httpUri="https://zenodo.org/record/180072/files/figure.png" pageId="4" pageNumber="65" targetBox="[206,1422,194,701]" targetPageId="4">
<paragraph id="8BCEFD7D7E4CFFB7FAD750B2FA8661AC" blockId="4.[151,1384,709,733]" box="[151,1384,709,733]" pageId="4" pageNumber="65">
<emphasis id="B905216F7E4CFFB7FAD750B2FEF761AC" bold="true" box="[151,281,709,733]" pageId="4" pageNumber="65">FIGURE 3.</emphasis>
<taxonomicName id="4C7186FE7E4CFFB7FB6050B1FDE361AC" box="[288,525,710,733]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="4" pageNumber="65" phylum="Arthropoda" rank="species" species="arenarum" status="sp. nov.">
<emphasis id="B905216F7E4CFFB7FB6050B1FDE361AC" box="[288,525,710,733]" italics="true" pageId="4" pageNumber="65">Eremocosta arenarum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2369C147E4CFFB7F85450B2FD8661AC" box="[532,616,709,733]" pageId="4" pageNumber="65" rank="species">
<emphasis id="B905216F7E4CFFB7F85450B2FD8C61AC" bold="true" box="[532,610,709,733]" pageId="4" pageNumber="65">sp. nov</emphasis>
.
</taxonomicNameLabel>
Detail of male cheliceral fixed finger, showing the mesoventral groove.
</paragraph>
</caption>
<caption id="DF0EADF57E4CFFB7FAD7543AFBD86515" box="[151,1078,1613,1637]" httpUri="https://zenodo.org/record/180073/files/figure.png" pageId="4" pageNumber="65" targetBox="[466,1125,780,1573]" targetPageId="4">
<paragraph id="8BCEFD7D7E4CFFB7FAD7543AFBD86515" blockId="4.[151,1078,1613,1637]" box="[151,1078,1613,1637]" pageId="4" pageNumber="65">
<emphasis id="B905216F7E4CFFB7FAD7543AFEF76514" bold="true" box="[151,281,1613,1637]" pageId="4" pageNumber="65">FIGURE 4.</emphasis>
<taxonomicName id="4C7186FE7E4CFFB7FB60543AFDE36515" box="[288,525,1613,1636]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="4" pageNumber="65" phylum="Arthropoda" rank="species" species="arenarum" status="sp. nov.">
<emphasis id="B905216F7E4CFFB7FB60543AFDE36515" box="[288,525,1613,1636]" italics="true" pageId="4" pageNumber="65">Eremocosta arenarum</emphasis>
</taxonomicName>
<emphasis id="B905216F7E4CFFB7F854543AFD876514" bold="true" box="[532,617,1613,1637]" pageId="4" pageNumber="65">
<taxonomicNameLabel id="A2369C147E4CFFB7F854543AFD876514" box="[532,617,1613,1637]" pageId="4" pageNumber="65" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Sternites XXII of males showing ctenidia
</paragraph>
</caption>
<subSubSection id="C36BAEF67E4CFFB7FA8754EFFAD5645B" pageId="4" pageNumber="65" type="distribution">
<paragraph id="8BCEFD7D7E4CFFB7FA8754EFFCE565C3" blockId="4.[151,1436,1688,2034]" box="[199,779,1688,1714]" pageId="4" pageNumber="65">
<emphasis id="B905216F7E4CFFB7FA8754EFFE8965C3" bold="true" box="[199,359,1688,1714]" pageId="4" pageNumber="65">Distribution.</emphasis>
Known only from the
<typeStatus id="54CA43DF7E4CFFB7F83354EFFD4865C3" box="[627,678,1688,1714]" pageId="4" pageNumber="65">type</typeStatus>
locality.
</paragraph>
<paragraph id="8BCEFD7D7E4CFFB7FA8754B7FCA36473" blockId="4.[151,1436,1688,2034]" pageId="4" pageNumber="65">
<emphasis id="B905216F7E4CFFB7FA8754B7FD7665AB" bold="true" box="[199,664,1728,1754]" pageId="4" pageNumber="65">Life history and habitat preferences.</emphasis>
All specimens were collected in an unconsolidated and actively drifting dune field that was sparsely vegetated with bushes.
</paragraph>
<paragraph id="8BCEFD7D7E4CFFB7FA875567FAD5645B" blockId="4.[151,1436,1688,2034]" box="[199,1339,1808,1834]" pageId="4" pageNumber="65">
They were detected with the aid of portable ultraviolet lamps and were captured by hand (
<figureCitation id="134AE1F87E4CFFB7FEA55567FAC2645B" box="[1253,1324,1808,1834]" captionStart="FIGURE 7" captionStartId="6.[151,255,1547,1571]" captionTargetBox="[151,1435,622,1519]" captionTargetId="figure@6.[151,1436,557,1521]" captionTargetPageId="6" captionText="FIGURE 7. Landscape in the type locality (Photograph by Kari J. McWest)." httpUri="https://zenodo.org/record/180075/files/figure.png" pageId="4" pageNumber="65">Fig. 7</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C36BAEF67E4CFFB5FA87554FFCB36283" lastPageId="6" lastPageNumber="67" pageId="4" pageNumber="65" type="discussion">
<paragraph id="8BCEFD7D7E4CFFB7FA87554FFF356483" blockId="4.[151,1436,1688,2034]" pageId="4" pageNumber="65">
<emphasis id="B905216F7E4CFFB7FA87554FFEAE6423" bold="true" box="[199,320,1848,1874]" pageId="4" pageNumber="65">Remarks.</emphasis>
Female identification at the species level within the
<taxonomicName id="4C7186FE7E4CFFB7F9E5554FFBC46420" box="[933,1066,1848,1873]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="4" pageNumber="65" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4CFFB7F9E5554FFBC46420" box="[933,1066,1848,1873]" italics="true" pageId="4" pageNumber="65">montezuma</emphasis>
</taxonomicName>
group is complicated. First, the female of
<taxonomicName id="4C7186FE7E4CFFB7FB565517FE2F6408" box="[278,449,1888,1913]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="4" pageNumber="65" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4CFFB7FB565517FE2F6408" box="[278,449,1888,1913]" italics="true" pageId="4" pageNumber="65">E. montezuma</emphasis>
</taxonomicName>
is unknown. Second, those of
<taxonomicName id="4C7186FE7E4CFFB7F9045517FC496408" box="[836,935,1888,1913]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="4" pageNumber="65" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4CFFB7F9045517FC496408" box="[836,935,1888,1913]" italics="true" pageId="4" pageNumber="65">E. fusca</emphasis>
</taxonomicName>
are not clearly diagnosed, as the female
<typeStatus id="54CA43DF7E4CFFB7FAD755FFFEE964D3" box="[151,263,1928,1954]" pageId="4" pageNumber="65" type="paratype">paratypes</typeStatus>
described by Muma are from different localities and show differences in size, color, and the operculum (Muma 1987), and it is probable that at least some of those specimens belong to a species other than
<taxonomicName id="4C7186FE7E4CFFB7FFC355C7FF3B6480" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="4" pageNumber="65" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4CFFB7FFC355C7FF3B6480" italics="true" pageId="4" pageNumber="65">E. fusca</emphasis>
</taxonomicName>
.
</paragraph>
<caption id="DF0EADF57E4DFFB6FAD757B5FD86668A" httpUri="https://zenodo.org/record/180074/files/figure.png" pageId="5" pageNumber="66" targetBox="[331,1217,234,1377]" targetPageId="5">
<paragraph id="8BCEFD7D7E4DFFB6FAD757B5FD86668A" blockId="5.[151,1436,1474,1531]" pageId="5" pageNumber="66">
<emphasis id="B905216F7E4DFFB6FAD757B5FEAD66AB" bold="true" box="[151,323,1474,1498]" pageId="5" pageNumber="66">FIGURES 56.</emphasis>
<taxonomicName id="4C7186FE7E4DFFB6FB0457B5FDDC66A8" box="[324,562,1474,1497]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="arenarum" status="sp. nov.">
<emphasis id="B905216F7E4DFFB6FB0457B5FDDC66A8" box="[324,562,1474,1497]" italics="true" pageId="5" pageNumber="66">Eremocosta arenarum</emphasis>
</taxonomicName>
<emphasis id="B905216F7E4DFFB6F87957B5FD7E66AB" bold="true" box="[569,656,1474,1498]" pageId="5" pageNumber="66">
<taxonomicNameLabel id="A2369C147E4DFFB6F87957B5FD7E66AB" box="[569,656,1474,1498]" pageId="5" pageNumber="66" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
5 Ectal view of right chelicerae of the putative female, 6 Mesal view of right putative female chelicera. Scale 1mm.
</paragraph>
</caption>
<paragraph id="8BCEFD7D7E4DFFB6FA875425FBDA6445" blockId="5.[151,1436,1618,2004]" pageId="5" pageNumber="66">
The
<typeStatus id="54CA43DF7E4DFFB6FABD5425FE8C651D" box="[253,354,1618,1644]" pageId="5" pageNumber="66" type="paratype">paratype</typeStatus>
(CNAN-T000265) of the new species is probably an immature female. It does not have the genital sternite sclerotized, as the adult females in this family normally show. The specimen is bigger than the adult males collected and although size has been shown to be very variable, females are usually bigger than males. The specimen was dissected and we could not confirm the presence of mature ovaries, or testes. Although it was not possible to accurately determine the sex or life-stage of this
<typeStatus id="54CA43DF7E4DFFB6FE035485FB45647D" box="[1091,1195,1778,1804]" pageId="5" pageNumber="66" type="paratype">paratype</typeStatus>
, we decided to illustrate the cheliceral dentition, because it could be useful in further comparisons.
</paragraph>
<paragraph id="8BCEFD7D7E4DFFB5FA875535FF376273" blockId="5.[151,1436,1618,2004]" lastBlockId="6.[151,1437,152,498]" lastPageId="6" lastPageNumber="67" pageId="5" pageNumber="66">
Females of
<taxonomicName id="4C7186FE7E4DFFB6FB135535FDC3642A" box="[339,557,1858,1884]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="acuitlapanensis">
<emphasis id="B905216F7E4DFFB6FB135535FE8B642A" box="[339,357,1858,1883]" italics="true" pageId="5" pageNumber="66">E</emphasis>
.
<emphasis id="B905216F7E4DFFB6FB355535FDC3642A" box="[373,557,1858,1883]" italics="true" pageId="5" pageNumber="66">acuitlapanensis</emphasis>
</taxonomicName>
differ from the putative female
<typeStatus id="54CA43DF7E4DFFB6F9F05535FBFB642D" box="[944,1045,1858,1884]" pageId="5" pageNumber="66" type="paratype">paratype</typeStatus>
of
<taxonomicName id="4C7186FE7E4DFFB6FE7F5535FB3A642A" box="[1087,1236,1858,1883]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4DFFB6FE7F5535FB3A642A" box="[1087,1236,1858,1883]" italics="true" pageId="5" pageNumber="66">E. arenarum</emphasis>
</taxonomicName>
in the cheliceral dentition of both fingers. The females of
<taxonomicName id="4C7186FE7E4DFFB6F836551DFCA164F2" box="[630,847,1898,1923]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="acuitlapanensis">
<emphasis id="B905216F7E4DFFB6F836551DFCA164F2" box="[630,847,1898,1923]" italics="true" pageId="5" pageNumber="66">E. acuitlapanensis</emphasis>
</taxonomicName>
exhibit a conspicuous mesal tooth on the movable finger, which is vestigial to obsolete in the putative female
<typeStatus id="54CA43DF7E4DFFB6F91755E5FC5264DD" box="[855,956,1938,1964]" pageId="5" pageNumber="66" type="paratype">paratype</typeStatus>
of
<taxonomicName id="4C7186FE7E4DFFB6F9A655E5FB9464DA" box="[998,1146,1938,1963]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4DFFB6F9A655E5FB9464DA" box="[998,1146,1938,1963]" italics="true" pageId="5" pageNumber="66">E. arenarum</emphasis>
</taxonomicName>
(see description above). Females of
<taxonomicName id="4C7186FE7E4DFFB6FB6055CDFE9164A2" box="[288,383,1978,2003]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4DFFB6FB6055CDFE9164A2" box="[288,383,1978,2003]" italics="true" pageId="5" pageNumber="66">E. fusca</emphasis>
</taxonomicName>
are similar to
<taxonomicName id="4C7186FE7E4DFFB6F86B55CDFD5164A2" box="[555,703,1978,2003]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="5" pageNumber="66" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4DFFB6F86B55CDFD5164A2" box="[555,703,1978,2003]" italics="true" pageId="5" pageNumber="66">E. arenarum</emphasis>
</taxonomicName>
in having an indistinct mesal tooth on the movable finger, but the cheliceral profile of
<taxonomicName id="4C7186FE7E4EFFB5FBEE52EFFDE263C0" box="[430,524,152,177]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="species" species="fusca">
<emphasis id="B905216F7E4EFFB5FBEE52EFFDE263C0" box="[430,524,152,177]" italics="true" pageId="6" pageNumber="67">E. fusca</emphasis>
</taxonomicName>
(
<emphasis id="B905216F7E4EFFB5F85D52EFFDA763C0" box="[541,585,152,177]" italics="true" pageId="6" pageNumber="67">fide</emphasis>
Muma, 1987) shows the intermediate teeth of both cheliceral fingers rising near the anterior edge of the principal tooth, whereas in
<taxonomicName id="4C7186FE7E4EFFB5F91752B7FC0563A8" box="[855,1003,192,217]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="species" species="arenarum">
<emphasis id="B905216F7E4EFFB5F91752B7FC0563A8" box="[855,1003,192,217]" italics="true" pageId="6" pageNumber="67">E. arenarum</emphasis>
</taxonomicName>
the intermediate teeth are well separated.
</paragraph>
<paragraph id="8BCEFD7D7E4EFFB5FA875367FCB36283" blockId="6.[151,1437,152,498]" pageId="6" pageNumber="67">
Members of the
<taxonomicName id="4C7186FE7E4EFFB5FBC95367FDE16258" box="[393,527,272,297]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4EFFB5FBC95367FDE16258" box="[393,527,272,297]" italics="true" pageId="6" pageNumber="67">montezuma</emphasis>
</taxonomicName>
group of
<taxonomicName id="4C7186FE7E4EFFB5F8C35367FCE06258" box="[643,782,272,297]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="genus">
<emphasis id="B905216F7E4EFFB5F8C35367FCE06258" box="[643,782,272,297]" italics="true" pageId="6" pageNumber="67">Eremocosta</emphasis>
</taxonomicName>
differ from other members of
<taxonomicName id="4C7186FE7E4EFFB5FE375367FAEC6258" box="[1143,1282,272,297]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="genus">
<emphasis id="B905216F7E4EFFB5FE375367FAEC6258" box="[1143,1282,272,297]" italics="true" pageId="6" pageNumber="67">Eremocosta</emphasis>
</taxonomicName>
in having an indistinct crease on the mesal face of the male's fixed cheliceral finger. This feature is shared with members of the genus
<taxonomicName id="4C7186FE7E4EFFB5FB535317FE7B6208" box="[275,405,352,377]" class="Arachnida" family="Eremobatidae" genus="Eremorhax" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="genus">
<emphasis id="B905216F7E4EFFB5FB535317FE7B6208" box="[275,405,352,377]" italics="true" pageId="6" pageNumber="67">Eremorhax</emphasis>
</taxonomicName>
, which differ, however in other respects (such as leg length). Members of the
<taxonomicName id="4C7186FE7E4EFFB5FF0B5317FF3B62D0" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="species" species="montezuma">
<emphasis id="B905216F7E4EFFB5FF0B5317FF3B62D0" italics="true" pageId="6" pageNumber="67">montezuma</emphasis>
</taxonomicName>
group differ further from other members of
<taxonomicName id="4C7186FE7E4EFFB5F8A253FFFC8362D0" box="[738,877,392,417]" class="Arachnida" family="Eremobatidae" genus="Eremocosta" kingdom="Animalia" order="Solifugae" pageId="6" pageNumber="67" phylum="Arthropoda" rank="genus">
<emphasis id="B905216F7E4EFFB5F8A253FFFC8362D0" box="[738,877,392,417]" italics="true" pageId="6" pageNumber="67">Eremocosta</emphasis>
</taxonomicName>
in the possession of abdominal ctenidia. While these differences could justify the erection of a new genus, we defer such a taxonomic decision until a thorough cladistic analysis of the entire family can be performed
</paragraph>
</subSubSection>
</treatment>
</document>