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<document id="D5684E914664CA6917CC28D188FE1505" ID-CLB-Dataset="295713" ID-DOI="10.11646/zootaxa.5446.4.11" ID-GBIF-Dataset="9ab78e8e-5132-4f54-abc3-9b100b7112c0" ID-ISSN="1175-5326" ID-Zenodo-Dep="11102071" ID-ZooBank="F82D6551-38AC-4732-B602-0BBDE4EA4377" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="julia" checkinTime="1714635682967" checkinUser="plazi" docAuthor="Nel, André" docDate="2024" docId="7F4A8799FFF3FF85FF44FABDFAEEF849" docLanguage="en" docName="zootaxa.5446.4.11.pdf" docOrigin="Zootaxa 5446 (4)" docSource="http://dx.doi.org/10.11646/zootaxa.5446.4.11" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Petrolestes inexpectatus Nel 2024, sp. nov." docType="treatment" docVersion="6" lastPageNumber="592" masterDocId="8373FFE1FFF0FF81FFD3FFC7FF80FFB8" masterDocTitle="Two new damselflies from the Eocene Green River Formation (Odonata, Zygoptera, Dysagrionidae, Thaumatoneuridae)" masterLastPageNumber="594" masterPageNumber="588" pageNumber="591" updateTime="1732709455579" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="8E47B356BE597228F40E8DEEF755ECA6">Two new damselflies from the Eocene Green River Formation (Odonata, Zygoptera, Dysagrionidae, Thaumatoneuridae)</mods:title>
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<mods:namePart id="8F4CA50285A23E7EBF82B0835B548D7D">Nel, André</mods:namePart>
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<treatment id="7F4A8799FFF3FF85FF44FABDFAEEF849" ID-DOI="http://doi.org/10.5281/zenodo.11102090" ID-GBIF-Taxon="229715469" ID-Zenodo-Dep="11102090" LSID="urn:lsid:plazi:treatment:7F4A8799FFF3FF85FF44FABDFAEEF849" httpUri="http://treatment.plazi.org/id/7F4A8799FFF3FF85FF44FABDFAEEF849" lastPageId="4" lastPageNumber="592" pageId="3" pageNumber="591" scope_family="Dysagrionidae" scope_order="Odonata">
<subSubSection id="BFF96504FFF3FF82FF44FABDFD9DFA2D" box="[151,541,1402,1429]" pageId="3" pageNumber="591" type="nomenclature">
<paragraph id="F75C368FFFF3FF82FF44FABDFD9DFA2D" blockId="3.[151,954,1402,1501]" box="[151,541,1402,1429]" pageId="3" pageNumber="591">
<heading id="AC1481E3FFF3FF82FF44FABDFD9DFA2D" bold="true" box="[151,541,1402,1429]" fontSize="11" level="1" pageId="3" pageNumber="591" reason="1">
<emphasis id="C597EA9DFFF3FF82FF44FABDFD9DFA2D" bold="true" box="[151,541,1402,1429]" pageId="3" pageNumber="591">
<taxonomicName id="30E34D0CFFF3FF82FF44FABDFE39FA2D" authority="Nel, 2024" authorityName="Nel" authorityYear="2024" box="[151,441,1402,1429]" class="Insecta" genus="Petrolestes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="591" phylum="Arthropoda" rank="species" species="inexpectatus" status="sp. nov.">
<emphasis id="C597EA9DFFF3FF82FF44FABDFE39FA2D" bold="true" box="[151,441,1402,1429]" italics="true" pageId="3" pageNumber="591">Petrolestes inexpectatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="DEA457E6FFF3FF82FE13FABCFD9DFA2D" box="[448,541,1403,1429]" pageId="3" pageNumber="591" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
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<subSubSection id="BFF96504FFF3FF82FF44FA58FC3AFA65" pageId="3" pageNumber="591" type="description">
<paragraph id="F75C368FFFF3FF82FF44FA58FE88FA01" blockId="3.[151,954,1402,1501]" box="[151,264,1439,1465]" pageId="3" pageNumber="591">
(
<figureCitation id="6FD82A0AFFF3FF82FF4CFA58FE80FA01" box="[159,256,1439,1465]" captionStart="FIGURE 2" captionStartId="4.[151,250,1721,1745]" captionTargetBox="[151,1435,597,1697]" captionTargetId="figure-224@4.[151,1435,597,1697]" captionTargetPageId="4" captionText="FIGURE 2. Petrolestes inexpectatus sp. nov., holotype IP.359116. Photographs under alcohol of wing. A, part; B, counterpart. Scale bars = 5 mm." figureDoi="http://doi.org/10.5281/zenodo.11102075" httpUri="https://zenodo.org/record/11102075/files/figure.png" pageId="3" pageNumber="591">Figure 2</figureCitation>
)
</paragraph>
<paragraph id="F75C368FFFF3FF82FF44FA05FC3AFA65" blockId="3.[151,954,1402,1501]" box="[151,954,1474,1501]" pageId="3" pageNumber="591">
<uri id="83723A8DFFF3FF82FF44FA05FC3AFA65" box="[151,954,1474,1501]" pageId="3" pageNumber="591">
urn:lsid:zoobank.org:act:
<uuid id="83450C5AFFF3FF82FE7AFA05FC3AFA65" box="[425,954,1474,1501]" pageId="3" pageNumber="591">64CA7115-25F1-4FAD-87E4-200896B07A63</uuid>
</uri>
</paragraph>
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<subSubSection id="BFF96504FFF3FF82FF44F9CDFDF0F929" pageId="3" pageNumber="591" type="materials_examined">
<paragraph id="F75C368FFFF3FF82FF44F9CDFDE9F9F1" blockId="3.[151,1437,1546,2041]" pageId="3" pageNumber="591">
<emphasis id="C597EA9DFFF3FF82FF44F9CDFF7FF99C" bold="true" box="[151,255,1546,1572]" pageId="3" pageNumber="591">Material</emphasis>
.
<materialsCitation id="478B3CD2FFF3FF82FEDFF9CCFDE9F9F1" ID-GBIF-Occurrence="4853285302" country="United States of America" location="Invertebrate Paleontology Collection" municipality="Yale Peabody Museum" pageId="3" pageNumber="591" specimenCount="1" typeStatus="holotype">
<typeStatus id="2858882DFFF3FF82FEDFF9CCFEF4F99D" box="[268,372,1547,1573]" pageId="3" pageNumber="591" type="holotype">Holotype</typeStatus>
IP.359116 (part and counterpart of a nearly complete wing), stored at
<location id="F23C6054FFF3FF82FBA8F9CCFE8FF9F1" LSID="urn:lsid:plazi:treatment:7F4A8799FFF3FF85FF44FABDFAEEF849:F23C6054FFF3FF82FBA8F9CCFE8FF9F1" country="United States of America" municipality="Yale Peabody Museum" name="Invertebrate Paleontology Collection" pageId="3" pageNumber="591">Invertebrate Paleontology Collection</location>
,
<collectingMunicipality id="1738ACF5FFF3FF82FECAF9E8FD9EF9F1" box="[281,542,1583,1609]" pageId="3" pageNumber="591">Yale Peabody Museum</collectingMunicipality>
,
<collectingCountry id="8FF4761FFFF3FF82FDFAF9E8FDE5F9F1" box="[553,613,1583,1609]" name="United States of America" pageId="3" pageNumber="591">USA</collectingCountry>
.
</materialsCitation>
</paragraph>
<paragraph id="F75C368FFFF3FF82FF14F995FDF0F929" blockId="3.[151,1437,1546,2041]" pageId="3" pageNumber="591">
<emphasis id="C597EA9DFFF3FF82FF14F995FE11F9D5" bold="true" box="[199,401,1618,1645]" pageId="3" pageNumber="591">Age and outcrop</emphasis>
. Eocene (Ypresian), Green River Formation, Parachute Creek member, Gus pit, two miles west of Rio Blanco store,
<collectingRegion id="3527F86DFFF3FF82FE69F9B0FDA5F929" box="[442,549,1655,1681]" country="United States of America" name="Colorado" pageId="3" pageNumber="591">Colorado</collectingRegion>
,
<collectingCountry id="8FF4761FFFF3FF82FDE3F9B0FDECF929" box="[560,620,1655,1681]" name="United States of America" pageId="3" pageNumber="591">USA</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="BFF96504FFF3FF82FF14F95CFE94F961" pageId="3" pageNumber="591" type="etymology">
<paragraph id="F75C368FFFF3FF82FF14F95CFE94F961" blockId="3.[151,1437,1546,2041]" pageId="3" pageNumber="591">
<emphasis id="C597EA9DFFF3FF82FF14F95CFEC8F90D" bold="true" box="[199,328,1691,1717]" pageId="3" pageNumber="591">Etymology</emphasis>
. Named after the unexpected presence of a second species of
<taxonomicName id="30E34D0CFFF3FF82FBE5F95CFB31F90D" authorityName="Cockerell" authorityYear="1927" box="[1078,1201,1691,1717]" class="Insecta" genus="Petrolestes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="591" phylum="Arthropoda" rank="genus">
<emphasis id="C597EA9DFFF3FF82FBE5F95CFB31F90D" box="[1078,1201,1691,1717]" italics="true" pageId="3" pageNumber="591">Petrolestes</emphasis>
</taxonomicName>
in the Green River Formation.
</paragraph>
</subSubSection>
<subSubSection id="BFF96504FFF3FF82FF14F925FD22F899" pageId="3" pageNumber="591" type="diagnosis">
<paragraph id="F75C368FFFF3FF82FF14F925FD22F899" blockId="3.[151,1437,1546,2041]" pageId="3" pageNumber="591">
<emphasis id="C597EA9DFFF3FF82FF14F925FEBAF944" bold="true" box="[199,314,1762,1788]" pageId="3" pageNumber="591">Diagnosis</emphasis>
. Wing characters only. Base of RP2 four cells distad subnodus; pterostigma covering two cells; presence of very long cells in cubito-anal area.
</paragraph>
</subSubSection>
<subSubSection id="BFF96504FFF3FF85FF14F8EDFD92FD85" lastPageId="4" lastPageNumber="592" pageId="3" pageNumber="591" type="description">
<paragraph id="F75C368FFFF3FF85FF14F8EDFD92FD85" blockId="3.[151,1437,1546,2041]" lastBlockId="4.[151,1437,151,573]" lastPageId="4" lastPageNumber="592" pageId="3" pageNumber="591">
<emphasis id="C597EA9DFFF3FF82FF14F8EDFED1F8FC" bold="true" box="[199,337,1834,1860]" pageId="3" pageNumber="591">Description</emphasis>
. Wings hyaline, distal third of wing deformed, thus its exact length is difficult to determine, wing ca.
<quantity id="301B9B6AFFF3FF82FF6EF888FE9FF8D1" box="[189,287,1871,1897]" metricMagnitude="-2" metricUnit="m" metricValue="2.78" pageId="3" pageNumber="591" unit="mm" value="27.8">27.8 mm</quantity>
long; max. width
<quantity id="301B9B6AFFF3FF82FE35F888FDBDF8D1" box="[486,573,1871,1897]" metricMagnitude="-3" metricUnit="m" metricValue="6.8" pageId="3" pageNumber="591" unit="mm" value="6.8">6.8 mm</quantity>
, wing
<quantity id="301B9B6AFFF3FF82FD57F888FD59F8D1" box="[644,729,1871,1897]" metricMagnitude="-3" metricUnit="m" metricValue="6.2" pageId="3" pageNumber="591" unit="mm" value="6.2">6.2 mm</quantity>
wide at nodus level; a very short petiole,
<quantity id="301B9B6AFFF3FF82FB73F888FB75F8D1" box="[1184,1269,1871,1897]" metricMagnitude="-3" metricUnit="m" metricValue="2.3" pageId="3" pageNumber="591" unit="mm" value="2.3">2.3 mm</quantity>
long; anal area with one row of cells between AA and AP; subdiscoidal cell broad elongate,
<quantity id="301B9B6AFFF3FF82FC2EF8B4FBD4F835" box="[1021,1108,1907,1933]" metricMagnitude="-3" metricUnit="m" metricValue="1.7" pageId="3" pageNumber="591" unit="mm" value="1.7">1.7 mm</quantity>
long,
<quantity id="301B9B6AFFF3FF82FB4FF8B5FB73F835" box="[1180,1267,1906,1933]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="3" pageNumber="591" unit="mm" value="0.5">0.5 mm</quantity>
wide; distance from base to arculus 5.0 mm, from arculus to nodus
<quantity id="301B9B6AFFF3FF82FD3CF850FCC8F809" box="[751,840,1943,1969]" metricMagnitude="-3" metricUnit="m" metricValue="7.8" pageId="3" pageNumber="591" unit="mm" value="7.8">7.8 mm</quantity>
, from nodus to pterostigma ca. 10.0 mm; nodus in a basal position; pterostigma rather short but broad,
<quantity id="301B9B6AFFF3FF82FD0CF87CFCB7F86D" box="[735,823,1979,2005]" metricMagnitude="-3" metricUnit="m" metricValue="2.1" pageId="3" pageNumber="591" unit="mm" value="2.1">2.1 mm</quantity>
long,
<quantity id="301B9B6AFFF3FF82FC50F87CFC5CF86D" box="[899,988,1979,2005]" metricMagnitude="-3" metricUnit="m" metricValue="6.2" pageId="3" pageNumber="591" unit="mm" value="6.2">6.2 mm</quantity>
wide, covering two cells; pterostigmal brace perpendicular to RA and RP1; distance from wing base to Ax1
<quantity id="301B9B6AFFF3FF82FC4BF818FC70F841" box="[920,1008,2015,2041]" metricMagnitude="-3" metricUnit="m" metricValue="3.4" pageId="3" pageNumber="591" unit="mm" value="3.4">3.4 mm</quantity>
, from Ax1 to Ax2
<quantity id="301B9B6AFFF3FF82FB6DF818FA96F841" box="[1214,1302,2015,2041]" metricMagnitude="-3" metricUnit="m" metricValue="1.4" pageId="3" pageNumber="591" unit="mm" value="1.4">1.4 mm</quantity>
, Ax2 nearly aligned with arculus; no supplementary antenodal crossvein; discoidal cell unicellular,
<quantity id="301B9B6AFFF4FF85FBB6FF50FB3BFF09" box="[1125,1211,151,177]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="4" pageNumber="592" unit="mm" value="1.1">1.1 mm</quantity>
long,
<quantity id="301B9B6AFFF4FF85FAD1FF50FAD8FF09" box="[1282,1368,151,177]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="4" pageNumber="592" unit="mm" value="1.1">1.1 mm</quantity>
wide, distinctly broadened in its distal part, with basal side
<quantity id="301B9B6AFFF4FF85FD24FF7CFCD0FF6D" box="[759,848,187,213]" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="4" pageNumber="592" unit="mm" value="0.3">0.3 mm</quantity>
, anterior side
<quantity id="301B9B6AFFF4FF85FC21FF7CFBCBFF6D" box="[1010,1099,187,213]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="4" pageNumber="592" unit="mm" value="0.9">0.9 mm</quantity>
, posterior side
<quantity id="301B9B6AFFF4FF85FB2AFF7CFAD3FF6D" box="[1273,1363,187,213]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="4" pageNumber="592" unit="mm" value="1.1">1.1 mm</quantity>
, distal side MAb
<quantity id="301B9B6AFFF4FF85FEDCFF18FEE8FF41" box="[271,360,223,249]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="4" pageNumber="592" unit="mm" value="1.1">1.1 mm</quantity>
; ScP not crossing through nodus as in
<taxonomicName id="30E34D0CFFF4FF85FCCFFF18FBC4FF41" authority="Scudder, 1895" authorityName="Scudder" authorityYear="1895" box="[796,1092,222,249]" class="Insecta" family="Sieblosiidae" genus="Stenolestes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="592" phylum="Arthropoda" rank="genus">
<emphasis id="C597EA9DFFF4FF85FCCFFF18FC18FF41" box="[796,920,223,249]" italics="true" pageId="4" pageNumber="592">Stenolestes</emphasis>
Scudder, 1895
</taxonomicName>
; nodal crossvein very oblique; subnodus perpendicular to RA and RP with corresponding crossvein below (between RP1/2 and IR2) of inverted obliquity; ca. 14 postnodal crossveins preserved, not aligned with 14 postsubnodal crossveins; bases of RP3/4 and IR2 between arculus and nodus, closer to nodus than to arculus, base of RP3/4
<quantity id="301B9B6AFFF4FF85FBCDFE8CFBF5FEDD" box="[1054,1141,331,357]" metricMagnitude="-3" metricUnit="m" metricValue="4.6" pageId="4" pageNumber="592" unit="mm" value="4.6">4.6 mm</quantity>
from arculus and
<quantity id="301B9B6AFFF4FF85FA96FE8CFA1DFEDD" box="[1349,1437,331,357]" metricMagnitude="-3" metricUnit="m" metricValue="3.2" pageId="4" pageNumber="592" unit="mm" value="3.2">3.2 mm</quantity>
from nodus; base of RP2 four cells, 3.0 mm distal of subnodus; base of IR1 two cells distally; oblique crossvein O absent; cubito-anal area with three-four rows of cells between CuA and posterior wing margin, some of these being very long; CuA reaching posterior wing margin well distal of nodus level; CuA weakly curved; postdiscoidal area with one row of cells; area between RP3/4 and MA with two secondary longitudinal veins in between; three rows of cells between RP3/4 and IR2 and one row between RP1 and IR1; three rows of cells between IR1 and RP2 opposite pterostigma, but only one basally.
</paragraph>
</subSubSection>
<caption id="A39C6607FFF4FF85FF44F97EFEDBF94C" ID-DOI="http://doi.org/10.5281/zenodo.11102075" ID-Zenodo-Dep="11102075" httpUri="https://zenodo.org/record/11102075/files/figure.png" pageId="4" pageNumber="592" startId="4.[151,250,1721,1745]" targetBox="[151,1435,597,1697]" targetPageId="4" targetType="figure">
<paragraph id="F75C368FFFF4FF85FF44F97EFEDBF94C" blockId="4.[151,1437,1721,1781]" pageId="4" pageNumber="592">
<emphasis id="C597EA9DFFF4FF85FF44F97EFE93F969" bold="true" box="[151,275,1721,1745]" pageId="4" pageNumber="592">FIGURE 2.</emphasis>
<taxonomicName id="30E34D0CFFF4FF85FECAF97EFD8EF969" authority="Nel, 2024" authorityName="Nel" authorityYear="2024" box="[281,526,1721,1745]" class="Insecta" genus="Petrolestes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="592" phylum="Arthropoda" rank="species" species="inexpectatus" status="sp. nov.">
<emphasis id="C597EA9DFFF4FF85FECAF97EFD8EF969" box="[281,526,1721,1745]" italics="true" pageId="4" pageNumber="592">Petrolestes inexpectatus</emphasis>
</taxonomicName>
<emphasis id="C597EA9DFFF4FF85FDC7F97EFDEBF969" bold="true" box="[532,619,1721,1745]" pageId="4" pageNumber="592">
<taxonomicNameLabel id="DEA457E6FFF4FF85FDC7F97EFDE7F969" box="[532,615,1721,1745]" pageId="4" pageNumber="592" rank="species">sp. nov.</taxonomicNameLabel>
,
</emphasis>
holotype IP.359116. Photographs under alcohol of wing. A, part; B, counterpart. Scale bars = 5 mm.
</paragraph>
</caption>
<subSubSection id="BFF96504FFF4FF85FF14F880FAEEF849" pageId="4" pageNumber="592" type="discussion">
<paragraph id="F75C368FFFF4FF85FF14F880FAEEF849" blockId="4.[151,1437,1863,2034]" pageId="4" pageNumber="592">
<emphasis id="C597EA9DFFF4FF85FF14F880FEA9F8D9" bold="true" box="[199,297,1863,1889]" pageId="4" pageNumber="592">Remark</emphasis>
. This wing is strongly similar to those of the two species of the genus
<taxonomicName id="30E34D0CFFF4FF85FB8BF880FB53F8D9" authorityName="Cockerell" authorityYear="1927" box="[1112,1235,1863,1889]" class="Insecta" genus="Petrolestes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="592" phylum="Arthropoda" rank="genus">
<emphasis id="C597EA9DFFF4FF85FB8BF880FB53F8D9" box="[1112,1235,1863,1889]" italics="true" pageId="4" pageNumber="592">Petrolestes</emphasis>
</taxonomicName>
, especially in the shape of the petiole, discoidal cell, subnodus, cubital veins, patterns of veins between main longitudinal veins, etc. (
<bibRefCitation id="93724B7EFFF4FF85FF4CF848FECEF811" author="Cockerell, T. D. A." box="[159,334,1935,1961]" pageId="4" pageNumber="592" pagination="81 - 82" refId="ref3448" refString="Cockerell, T. D. A. (1927) A new fossil dragonfly from the Eocene of Colorado. The Entomologist, 60, 81 - 82." type="journal article" year="1927">Cockerell 1927</bibRefCitation>
;
<bibRefCitation id="93724B7EFFF4FF85FE8BF848FDD3F812" author="Garrouste, R. &amp; Nel, A." box="[344,595,1935,1962]" pageId="4" pageNumber="592" pagination="354 - 366" refId="ref3595" refString="Garrouste, R. &amp; Nel, A. (2015) New Eocene damselflies and first Cenozoic damsel-dragonfly of the isophlebiopteran lineage (Insecta: Odonata). Zootaxa, 4028 (3), 354 - 366. https: // doi. org / 10.11646 / zootaxa. 4028.3.2" type="journal article" year="2015">Garrouste &amp; Nel 2015</bibRefCitation>
). It can be attributed to this genus, but differs from the two described species in the base of RP2 situated four cells distad subnodus vs. only two, in the pterostigma covering only two cells vs. four or more, and in the presence of very long cells in the cubito-anal area. Thus I consider it as a new species.
</paragraph>
</subSubSection>
</treatment>
</document>