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<document id="E47B94049F4C9459F151992B2F892C87" ID-ISSN="1175­5334" IM.materialsCitations_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1625624287261" checkinUser="felipe" docAuthor="Published, First" docDate="2007" docId="03CE87EB496D0739FF36FA6DFDB0DA0C" docLanguage="en" docName="zt01404p066.pdf" docOrigin="Zootaxa 1404" docStyle="DocumentStyle:C4791ACFF01C5C140D2C1A203DB3C9B0.4:Zootaxa.2007-2008.monograph" docStyleId="C4791ACFF01C5C140D2C1A203DB3C9B0" docStyleName="Zootaxa.2007-2008.monograph" docStyleVersion="4" docTitle="Pseudochasmatonotus furcatus Published 2007, n. sp." docType="treatment" docVersion="2" lastPageNumber="33" masterDocId="FFF7FF9349730719FFA1FF88FFC8DE5F" masterDocTitle="Chironomid midges from early Eocene amber of France (Diptera: Chironomidae)" masterLastPageNumber="66" masterPageNumber="1" pageNumber="31" updateTime="1698992602245" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="1FE643B4C38535A6C553E7216E72C7FD">Chironomid midges from early Eocene amber of France (Diptera: Chironomidae)</mods:title>
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<mods:part id="350C09064D9BA4AFA3BC6792A239AE76">
<mods:date id="9A9224DA556C7D60BC146583DEECDB48">2007</mods:date>
<mods:detail id="275956325C8727E0C766F5B5CF881D21" type="pubDate">
<mods:number id="5E48CA2771A634F54EB518BEC1540A4D">2007-02-05</mods:number>
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<mods:identifier id="FF7D5985CEF0148EB41167BD6E5A4D98" type="ISSN">1175­5334</mods:identifier>
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<treatment id="03CE87EB496D0739FF36FA6DFDB0DA0C" LSID="urn:lsid:plazi:treatment:03CE87EB496D0739FF36FA6DFDB0DA0C" httpUri="http://treatment.plazi.org/id/03CE87EB496D0739FF36FA6DFDB0DA0C" lastPageId="32" lastPageNumber="33" pageId="30" pageNumber="31">
<subSubSection id="C37D6576496D0707FF36FA6DFD93DBA0" box="[151,603,1509,1535]" pageId="30" pageNumber="31" type="nomenclature">
<paragraph id="8BD836FD496D0707FF36FA6DFD93DBA0" blockId="30.[151,603,1509,1570]" box="[151,603,1509,1535]" pageId="30" pageNumber="31">
<heading id="D0908191496D0707FF36FA6DFD93DBA0" bold="true" box="[151,603,1509,1535]" fontSize="11" level="1" pageId="30" pageNumber="31" reason="1">
<emphasis id="B913EAEF496D0707FF36FA6DFD93DBA0" bold="true" box="[151,603,1509,1535]" pageId="30" pageNumber="31">
<taxonomicName id="4C674D7E496D0707FF36FA6DFDD8DBA0" ID-CoL="8DHZ6" authority="Published, 2007" authorityName="Published" authorityYear="2007" box="[151,528,1509,1535]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="30" pageNumber="31" phylum="Arthropoda" rank="species" species="furcatus" status="sp. nov.">
<emphasis id="B913EAEF496D0707FF36FA6DFDD8DBA0" bold="true" box="[151,528,1509,1535]" italics="true" pageId="30" pageNumber="31">Pseudochasmatonotus furcatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2205794496D0707FDB8FA6DFD93DBA0" box="[537,603,1509,1535]" pageId="30" pageNumber="31" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C37D6576496D0707FF36F980FEFCD87D" box="[151,308,1544,1570]" pageId="30" pageNumber="31" type="description">
<paragraph id="8BD836FD496D0707FF36F980FEFCD87D" blockId="30.[151,603,1509,1570]" box="[151,308,1544,1570]" pageId="30" pageNumber="31">
(
<figureCitation id="135C2A78496D0707FF3EF980FF37D87D" box="[159,255,1544,1570]" captionStart="FIGURE 27" captionStartId="31.[151,255,1893,1917]" captionTargetBox="[377,1211,206,1834]" captionTargetId="figure-58@31.[364,1224,197,1866]" captionTargetPageId="31" captionText="FIGURE 27. Pseudochasmatonotus furcatus n. sp., holotype PA 2818, photograph of habitus." pageId="30" pageNumber="31">Figs. 27</figureCitation>
29)
</paragraph>
</subSubSection>
<subSubSection id="C37D6576496D0707FF36F9D0FC0CD82D" box="[151,964,1624,1650]" pageId="30" pageNumber="31" type="etymology">
<paragraph id="8BD836FD496D0707FF36F9D0FC0CD82D" blockId="30.[151,1435,1624,1930]" box="[151,964,1624,1650]" pageId="30" pageNumber="31">
<emphasis id="B913EAEF496D0707FF36F9D0FEEFD82D" bold="true" box="[151,295,1624,1650]" pageId="30" pageNumber="31">Etymology:</emphasis>
The name of this species refers to the forked gonostylus.
</paragraph>
</subSubSection>
<subSubSection id="C37D6576496D0707FF67F908FD79D8C5" box="[198,689,1664,1690]" pageId="30" pageNumber="31" type="diagnosis">
<paragraph id="8BD836FD496D0707FF67F908FD79D8C5" blockId="30.[151,1435,1624,1930]" box="[198,689,1664,1690]" pageId="30" pageNumber="31">
<emphasis id="B913EAEF496D0707FF67F908FE80D8C5" bold="true" box="[198,328,1664,1690]" pageId="30" pageNumber="31">Diagnosis:</emphasis>
As stated above for the genus.
</paragraph>
</subSubSection>
<subSubSection id="C37D6576496D0739FF67F920FC5BDC33" lastPageId="32" lastPageNumber="33" pageId="30" pageNumber="31" type="description">
<paragraph id="8BD836FD496D0707FF67F920FEF0D9D5" blockId="30.[151,1435,1624,1930]" pageId="30" pageNumber="31">
<emphasis id="B913EAEF496D0707FF67F920FEA8D89D" bold="true" box="[198,352,1704,1730]" pageId="30" pageNumber="31">Description:</emphasis>
Head
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long, deformed; ocelli absent; antenna
<quantity id="4C9F9B18496D0707FBA6F920FBBCD89D" box="[1031,1140,1704,1730]" metricMagnitude="-4" metricUnit="m" metricValue="6.2" pageId="30" pageNumber="31" unit="mm" value="0.62">0.62 mm</quantity>
long, much longer than head, distinctly hairy, with 11 flagellomeres covered with long setae (shortest
<quantity id="4C9F9B18496D0707FB87F958FB46D8B5" box="[1062,1166,1744,1770]" metricMagnitude="-5" metricUnit="m" metricValue="1.0" pageId="30" pageNumber="31" unit="mm" value="0.01">0.01 mm</quantity>
long, longest
<quantity id="4C9F9B18496D0707FA95F958FA53D8B5" box="[1332,1435,1744,1770]" metricMagnitude="-4" metricUnit="m" metricValue="3.7" pageId="30" pageNumber="31" unit="mm" value="0.37">0.37 mm</quantity>
long), pedicel broad and short, rounded, 11th flagellomere
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long, apex rounded, without subapical setae; eye bare, with strong parallel­sided dorsomedial extension, with 3 rows of ommatidia at minimum width; mouthparts lacking functional mandibles; postoculars absent, numerous frontals and inner and outer vertical setae.
</paragraph>
<caption id="DF186675496C0706FF36F8EDFB4BD923" box="[151,1155,1893,1917]" pageId="31" pageNumber="32" startId="31.[151,255,1893,1917]" targetBox="[377,1211,206,1834]" targetPageId="31">
<paragraph id="8BD836FD496C0706FF36F8EDFB4BD923" blockId="31.[151,1423,1893,1986]" box="[151,1155,1893,1917]" pageId="31" pageNumber="32">
<emphasis id="B913EAEF496C0706FF36F8EDFEEED922" bold="true" box="[151,294,1893,1917]" pageId="31" pageNumber="32">FIGURE 27.</emphasis>
<taxonomicName id="4C674D7E496C0706FE8CF8EDFDB0D923" authority="Published, 2007" authorityName="Published" authorityYear="2007" box="[301,632,1893,1916]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="31" pageNumber="32" phylum="Arthropoda" rank="species" species="furcatus" status="sp. nov.">
<emphasis id="B913EAEF496C0706FE8CF8EDFDB0D923" box="[301,632,1893,1916]" italics="true" pageId="31" pageNumber="32">Pseudochasmatonotus furcatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2205794496C0706FDDEF8EDFD72D923" box="[639,698,1893,1916]" pageId="31" pageNumber="32" rank="species">n. sp.</taxonomicNameLabel>
, holotype PA 2818, photograph of habitus.
</paragraph>
</caption>
<paragraph id="8BD836FD496C0706FF36F80FFB05D9C0" blockId="31.[151,1423,1893,1986]" box="[151,1229,1927,1951]" pageId="31" pageNumber="32">
<emphasis id="B913EAEF496C0706FF36F80FFEEED9C0" bold="true" box="[151,294,1927,1951]" pageId="31" pageNumber="32">FIGURE 28.</emphasis>
<taxonomicName id="4C674D7E496C0706FE8CF800FDB0D9C0" authority="Published, 2007" authorityName="Published" authorityYear="2007" box="[301,632,1928,1951]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="31" pageNumber="32" phylum="Arthropoda" rank="species" species="furcatus" status="sp. nov.">
<emphasis id="B913EAEF496C0706FE8CF800FDB0D9C0" box="[301,632,1928,1951]" italics="true" pageId="31" pageNumber="32">Pseudochasmatonotus furcatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2205794496C0706FDDEF800FD72D9C0" box="[639,698,1928,1951]" pageId="31" pageNumber="32" rank="species">n. sp.</taxonomicNameLabel>
,
<typeStatus id="54DC885F496C0706FD64F800FCEAD9C0" box="[709,802,1928,1951]" pageId="31" pageNumber="32" type="holotype">holotype</typeStatus>
PA 2818, photograph of male genitalia.
</paragraph>
<paragraph id="8BD836FD496C0706FF36F822FA47D99E" blockId="31.[151,1423,1893,1986]" box="[151,1423,1962,1986]" pageId="31" pageNumber="32">
<emphasis id="B913EAEF496C0706FF36F822FEEED99D" bold="true" box="[151,294,1962,1986]" pageId="31" pageNumber="32">FIGURE 29.</emphasis>
<taxonomicName id="4C674D7E496C0706FE8CF822FDB0D99E" authority="Published, 2007" authorityName="Published" authorityYear="2007" box="[301,632,1962,1985]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="31" pageNumber="32" phylum="Arthropoda" rank="species" species="furcatus" status="sp. nov.">
<emphasis id="B913EAEF496C0706FE8CF822FDB0D99E" box="[301,632,1962,1985]" italics="true" pageId="31" pageNumber="32">Pseudochasmatonotus furcatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2205794496C0706FDDEF822FD72D99E" box="[639,698,1962,1985]" pageId="31" pageNumber="32" rank="species">n. sp.</taxonomicNameLabel>
,
<typeStatus id="54DC885F496C0706FD64F822FCEAD99E" box="[709,802,1962,1985]" pageId="31" pageNumber="32" type="holotype">holotype</typeStatus>
PA 2818, drawing of male genitalia (scale bar =
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).
</paragraph>
<paragraph id="8BD836FD49530739FF67FF10FC5BDC33" blockId="32.[151,1437,152,1107]" pageId="32" pageNumber="33">
Thorax
<quantity id="4C9F9B1849530739FE87FF10FE4CDEED" box="[294,388,152,178]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="32" pageNumber="33" unit="mm" value="0.5">0.5 mm</quantity>
long; postnotum bare, without longitudinal median groove; surface of scutellum with numerous long setae visible in 2 rows; scutal tubercle not visible; acrostichals absent, dorsocentrals biserial; scutum with median longitudinal groove; 3 prealar setae, 1 supraalar seta; epimeron II and preepisternum bare. Wing macropterous,
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long,
<quantity id="4C9F9B1849530739FDC1FE98FD01DF75" box="[608,713,272,298]" metricMagnitude="-4" metricUnit="m" metricValue="2.8" pageId="32" pageNumber="33" unit="mm" value="0.28">0.28 mm</quantity>
wide, hyaline, membrane covered with numerous setae; anal vein An
<subScript id="17E334B849530739FF54FEC0FF35DF09" attach="left" box="[245,253,328,342]" fontSize="6" pageId="32" pageNumber="33">2</subScript>
absent; radius with 2 branches R
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and R
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, R
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seemingly absent; only M
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and M
<subScript id="17E334B849530739FB72FEC0FB25DF09" attach="left" box="[1235,1261,328,342]" fontSize="6" pageId="32" pageNumber="33">3+4</subScript>
present; crossvein MCu absent; squama fringed. Halter
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long. Fore femur
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long, tibia
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long, tarsus
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long; mid femur
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long, tibia
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long, tarsus
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long; hind femur
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long, tibia
<quantity id="4C9F9B1849530739FF74FE3AFE88DF93" box="[213,320,434,460]" metricMagnitude="-4" metricUnit="m" metricValue="5.4" pageId="32" pageNumber="33" unit="mm" value="0.54">0.54 mm</quantity>
long, tarsus
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long; ta4 of all legs cylindrical, not cordiform; fore tibia without long spur, mid and hind tibiae with 2 long spurs, hind tibial comb well developed. Abdomen
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long,
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wide; gonostylus
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long, bifurcate, each narrow and elongate, respectively
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long and
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long, outer surface of 1 gonostylus covered with few setae; gonocoxite
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long,
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wide, with numerous long setae on outer surface; anal point not visible.
</paragraph>
</subSubSection>
<subSubSection id="C37D657649530739FF67FDF2FAABDA74" pageId="32" pageNumber="33" type="discussion">
<paragraph id="8BD836FD49530739FF67FDF2FAABDA74" blockId="32.[151,1437,152,1107]" pageId="32" pageNumber="33">
<emphasis id="B913EAEF49530739FF67FDF2FE9BDCCB" bold="true" box="[198,339,634,660]" pageId="32" pageNumber="33">Discussion:</emphasis>
The placement of this fossil in the
<taxonomicName id="4C674D7E49530739FD4CFDF2FC53DCCB" authorityName="Edwards" authorityYear="1929" box="[749,923,634,660]" class="Insecta" family="Chironomidae" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="subFamily" subFamily="Orthocladiinae">Orthocladiinae</taxonomicName>
is supported by the characters stated above. In the key to the Holarctic
<taxonomicName id="4C674D7E49530739FE47FD2AFD5CDCE3" authorityName="Edwards" authorityYear="1929" box="[486,660,674,700]" class="Insecta" family="Chironomidae" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="subFamily" subFamily="Orthocladiinae">Orthocladiinae</taxonomicName>
genera of Cranston
<emphasis id="B913EAEF49530739FC2EFD2BFC0EDCE3" box="[911,966,675,700]" italics="true" pageId="32" pageNumber="33">et al</emphasis>
. (1989),
<taxonomicName id="4C674D7E49530739FB98FD2BFAF7DCE3" authority="Published, 2007" authorityName="Published" authorityYear="2007" box="[1081,1343,675,700]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus" status="gen. nov.">
<emphasis id="B913EAEF49530739FB98FD2BFAF7DCE3" box="[1081,1343,675,700]" italics="true" pageId="32" pageNumber="33">Pseudochasmatonotus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A220579449530739FAE8FD2AFA54DCE3" box="[1353,1436,674,700]" pageId="32" pageNumber="33" rank="genus">n. gen.</taxonomicNameLabel>
would fall near the recent genus
<taxonomicName id="4C674D7E49530739FDB2FD43FD01DCBB" authorityName="Loew" authorityYear="1864" box="[531,713,715,740]" class="Insecta" family="Chironomidae" genus="Chasmatonotus" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B913EAEF49530739FDB2FD43FD01DCBB" box="[531,713,715,740]" italics="true" pageId="32" pageNumber="33">Chasmatonotus</emphasis>
</taxonomicName>
because of the following characters: wing well developed; R
<subScript id="17E334B849530739FA35FD53FA54DCB6" attach="right" box="[1428,1436,731,745]" fontSize="6" pageId="32" pageNumber="33">1</subScript>
and R
<subScript id="17E334B849530739FF7EFC8DFF30DD4C" attach="left" box="[223,248,773,787]" fontSize="6" pageId="32" pageNumber="33">4+5</subScript>
not forming a thick clavus; scutum with a median longitudinal groove; and gonostylus bifurcate. However,
<taxonomicName id="4C674D7E49530739FEB1FCA9FE0FDD65" authorityName="Loew" authorityYear="1864" box="[272,455,801,826]" class="Insecta" family="Chironomidae" genus="Chasmatonotus" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B913EAEF49530739FEB1FCA9FE0FDD65" box="[272,455,801,826]" italics="true" pageId="32" pageNumber="33">Chasmatonotus</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C674D7E49530739FDC0FCA9FCAFDD65" authorityName="Published" authorityYear="2007" box="[609,871,801,826]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B913EAEF49530739FDC0FCA9FCAFDD65" box="[609,871,801,826]" italics="true" pageId="32" pageNumber="33">Pseudochasmatonotus</emphasis>
</taxonomicName>
in the following characters: male antenna short, plume reduced with only five flagellomeres; palp (often) short; eye without dorsomedial extension; anepisternals sometimes present; preepisternals present; anal lobe strongly obtuse; squama without setae but sometimes up to five setae present; and pseudospurs present on tarsomeres 1 and 2 of mid and hind legs. All these characters are absent or different in
<taxonomicName id="4C674D7E49530739FDF7FC49FC94DD85" authorityName="Published" authorityYear="2007" box="[598,860,961,986]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B913EAEF49530739FDF7FC49FC94DD85" box="[598,860,961,986]" italics="true" pageId="32" pageNumber="33">Pseudochasmatonotus</emphasis>
</taxonomicName>
. Furthermore,
<taxonomicName id="4C674D7E49530739FBB4FC49FB37DD85" authorityName="Published" authorityYear="2007" box="[1045,1279,961,986]" class="Insecta" family="Chironomidae" genus="Parachasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B913EAEF49530739FBB4FC49FB37DD85" box="[1045,1279,961,986]" italics="true" pageId="32" pageNumber="33">Parachasmatonotus</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C674D7E49530739FF36FC61FE55DA5D" authorityName="Published" authorityYear="2007" box="[151,413,1001,1026]" class="Insecta" family="Chironomidae" genus="Pseudochasmatonotus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diptera" pageId="32" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B913EAEF49530739FF36FC61FE55DA5D" box="[151,413,1001,1026]" italics="true" pageId="32" pageNumber="33">Pseudochasmatonotus</emphasis>
</taxonomicName>
by the following characters: eye without dorsomedial extension; 10 prealar setae unlike three prealars; wing membrane bare; and gonostylus simple. For these reasons we establish a new genus.
</paragraph>
</subSubSection>
<subSubSection id="C37D657649530739FF67FBB0FDB0DA0C" box="[198,632,1080,1107]" pageId="32" pageNumber="33" type="materials_examined">
<paragraph id="8BD836FD49530739FF67FBB0FDB0DA0C" blockId="32.[151,1437,152,1107]" box="[198,632,1080,1107]" pageId="32" pageNumber="33">
<emphasis id="B913EAEF49530739FF67FBB0FEF5DA0D" bold="true" box="[198,317,1080,1106]" pageId="32" pageNumber="33">Material:</emphasis>
<typeStatus id="54DC885F49530739FEE5FBB1FE79DA0C" box="[324,433,1081,1107]" pageId="32" pageNumber="33" type="holotype">Holotype</typeStatus>
PA 2818 (male).
</paragraph>
</subSubSection>
</treatment>
</document>