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<document ID-DOI="http://doi.org/10.5281/zenodo.4760380" ID-GBIF-Dataset="53754ae5-8913-4e45-b546-b9edae8f726b" ID-GBIF-Taxon="182135166" ID-ISSN="1854-0392" ID-Zenodo-Dep="4760380" ID-ZooBank="150B2555-91E3-4110-8BBC-25F1AAC0E6B2" checkinTime="1620964466541" checkinUser="felipe" docAuthor="Sandberg, John B. &amp; Kondratieff, Boris C." docDate="2013" docId="1B32387A831EB271F436A3C3FBEEA323" docLanguage="en" docName="Illiesia.9.05.34-64.pdf" docOrigin="Illiesia 9 (5)" docStyle="DocumentStyle:3ED4ECBC8873166DC296BE619562C54F.3:Illiesia.2009-.journal_article" docStyleId="3ED4ECBC8873166DC296BE619562C54F" docStyleName="Illiesia.2009-.journal_article" docStyleVersion="3" docTitle="Isoperla baumanni Szczytko &amp; Stewart 1984" docType="treatment" docVersion="9" lastPageNumber="43" masterDocId="E70B40028317B278F535A704FF9CA45D" masterDocTitle="The Isoperla Of California (Plecoptera: Perlodidae); Updated Male Descriptions And Adult Keys For 18 Western Nearctic Species" masterLastPageNumber="64" masterPageNumber="34" pageId="9" pageNumber="43" updateTime="1632021822729" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>The Isoperla Of California (Plecoptera: Perlodidae); Updated Male Descriptions And Adult Keys For 18 Western Nearctic Species</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Sandberg, John B.</mods:namePart>
<mods:affiliation>, &amp; Boris C. Kondratieff &amp; California Dept. of Fish &amp; Wildlife - A. B. L. and CSUC Research Foundation, California State University, Chico, CA 95929 - 0555 U. S. A. E-mail: jsandberg @ csuchico. edu</mods:affiliation>
<mods:nameIdentifier type="email">jsandberg@csuchico.edu</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kondratieff, Boris C.</mods:namePart>
<mods:affiliation>Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado 80523, U. S. A. E-mail: Boris. Kondratieff @ Colostate. edu</mods:affiliation>
<mods:nameIdentifier type="email">Boris.Kondratieff@Colostate.edu</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Illiesia</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2013</mods:date>
<mods:detail type="volume">
<mods:number>9</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>5</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>34</mods:start>
<mods:end>64</mods:end>
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</mods:relatedItem>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://doi.org/10.5281/zenodo.4760870</mods:identifier>
<mods:identifier type="GBIF-Dataset">53754ae5-8913-4e45-b546-b9edae8f726b</mods:identifier>
<mods:identifier type="ISSN">1854-0392</mods:identifier>
<mods:identifier type="Zenodo-Dep">4760870</mods:identifier>
<mods:identifier type="ZooBank">150B2555-91E3-4110-8BBC-25F1AAC0E6B2</mods:identifier>
</mods:mods>
<treatment ID-DOI="http://doi.org/10.5281/zenodo.4760380" ID-GBIF-Taxon="182135166" ID-Zenodo-Dep="4760380" LSID="urn:lsid:plazi:treatment:1B32387A831EB271F436A3C3FBEEA323" httpUri="http://treatment.plazi.org/id/1B32387A831EB271F436A3C3FBEEA323" lastPageNumber="43" pageId="9" pageNumber="43">
<subSubSection box="[259,727,1223,1247]" pageId="9" pageNumber="43" type="nomenclature">
<paragraph blockId="9.[259,727,1223,1247]" box="[259,727,1223,1247]" pageId="9" pageNumber="43">
<heading bold="true" box="[259,727,1223,1247]" centered="true" fontSize="10" level="2" pageId="9" pageNumber="43" reason="2">
<taxonomicName authority="Szczytko &amp; Stewart" authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[259,727,1223,1247]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis bold="true" box="[259,727,1223,1247]" pageId="9" pageNumber="43">
<emphasis bold="true" box="[259,482,1223,1247]" italics="true" pageId="9" pageNumber="43">Isoperla baumanni</emphasis>
Szczytko &amp; Stewart
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection box="[400,586,1259,1284]" pageId="9" pageNumber="43" type="description">
<paragraph blockId="9.[400,586,1259,1284]" box="[400,586,1259,1284]" pageId="9" pageNumber="43">
(
<figureCitation box="[409,484,1259,1283]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Figs. 3</figureCitation>
a-d,
<figureCitation box="[537,565,1260,1284]" captionStart="Figs" captionStartId="27.[189,236,1503,1525]" captionTargetBox="[294,1339,251,1437]" captionTargetId="figure-54@27.[294,1339,251,1437]" captionTargetPageId="27" captionText="Figs. 20a-f. The cleared aedeagus of six western Nearctic Isoperla species after live evertion; membranous opening of internal tube like process or apex (white arrows); tube like internal process (black arrows). 50x (20b, d &amp; e, cropped and enlarged). 20a. I. baumanni, lateral view, partially everted; 20b. I. fulva, lateral view; 20c. I. marmorata, lateral view; 20d. I. miwok, dorsoapical view, tube like process openings along anteroapical margin; 20e. I. roguensis, ventral view, tube like process openings along anteroapical margin; 20f. I. tilasqua, lateral view." figureDoi="http://doi.org/10.5281/zenodo.4764597" httpUri="https://zenodo.org/record/4764597/files/figure.png" pageId="9" pageNumber="43">20</figureCitation>
a)
</paragraph>
</subSubSection>
<subSubSection box="[227,669,1330,1352]" pageId="9" pageNumber="43" type="reference_group">
<paragraph blockId="9.[227,797,1330,1417]" box="[227,669,1330,1352]" pageId="9" pageNumber="43">
<treatmentCitation author="Szczytko &amp; Stewart" box="[227,665,1330,1352]" pageId="9" pageNumber="43" year="1984">
<taxonomicName authority="Szczytko &amp; Stewart 1984" authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[227,665,1330,1352]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[227,406,1330,1351]" italics="true" pageId="9" pageNumber="43">Isoperla baumanni</emphasis>
<bibRefCitation author="Szczytko, S. W. &amp; K. W. Stewart" box="[410,665,1330,1352]" pageId="9" pageNumber="43" pagination="251 - 263" refId="ref18631" refString="Szczytko, S. W. &amp; K. W. Stewart. 1984. Descriptions of Calliperla Banks, Rickera Jewett, and two new western Nearctic Isoperla species (Plecoptera: Perlodidae). Annals of the Entomological Society of America, 77: 251 - 263." type="journal article" year="1984">Szczytko &amp; Stewart 1984</bibRefCitation>
</taxonomicName>
</treatmentCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="9" pageNumber="43" type="materials_examined">
<paragraph blockId="9.[227,797,1330,1417]" pageId="9" pageNumber="43">
<materialsCitation ID-GBIF-Occurrence="3111810350" county="Plumas County" location="Domingo Spring Campground" municipality="Domingo Spring" pageId="9" pageNumber="43" specimenCount="1" specimenCount-male="1" stateProvince="California" typeStatus="holotype">
<typeStatus box="[672,769,1330,1352]" pageId="9" pageNumber="43">Holotype</typeStatus>
<specimenCount box="[774,792,1330,1352]" pageId="9" pageNumber="43" type="male">♂</specimenCount>
,
<collectingRegion box="[227,336,1363,1385]" country="United States of America" name="California" pageId="9" pageNumber="43">California</collectingRegion>
,
<collectingCounty box="[344,509,1363,1385]" pageId="9" pageNumber="43">Plumas County</collectingCounty>
,
<collectingMunicipality box="[518,691,1363,1385]" pageId="9" pageNumber="43">Domingo Spring</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:1B32387A831EB271F436A3C3FBEEA323:9644DFB7831EB271F78EA257FE5EA1D4" county="Plumas County" municipality="Domingo Spring" name="Domingo Spring Campground" pageId="9" pageNumber="43" stateProvince="California">Domingo Spring Campground</location>
,
<locationDeviation box="[460,650,1395,1417]" location="Chester." pageId="9" pageNumber="43">
<quantity box="[460,506,1395,1417]" metricMagnitude="3" metricUnit="m" metricValue="9.656064" pageId="9" pageNumber="43" unit="mi" value="6.0">6 mi</quantity>
NW Chester.
</locationDeviation>
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="9" pageNumber="43" type="description">
<paragraph blockId="9.[189,797,1464,1914]" lastBlockId="9.[835,1444,225,1918]" pageId="9" pageNumber="43">
<emphasis bold="true" box="[189,251,1464,1488]" pageId="9" pageNumber="43">Male</emphasis>
. Aedeagus: sclerotized posterior process absent; body with one posterobasal lobe, one posteromedian lobe and expanded apex, apex deeply inverted (
<figureCitation box="[314,404,1570,1595]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Fig. 3a</figureCitation>
); one large patch of spinulae concentrated below posteromedian lobe (
<figureCitation box="[697,783,1606,1630]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Fig. 3b</figureCitation>
), and a long thin patch along posteroapical margin (
<figureCitation box="[197,276,1677,1701]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Fig. 3c</figureCitation>
). Abdominal terga 8-9, 9, 9-10: without stout spinulae or long stout setae. Posterolateral margins of at least abdominal segment 8 with scale-like setae clustered in brushes of several setae. Paraprocts: curved dorsally, length if straightened subequal to first cercal segment, tapering abruptly to blunt apices (
<figureCitation box="[197,277,1890,1914]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Fig. 3c</figureCitation>
). Vesicle: rounded lobe, widest at base with broadly rounded apical margin (
<figureCitation box="[1219,1302,225,249]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Fig. 3d</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="9" pageNumber="43" type="discussion">
<paragraph blockId="9.[835,1444,225,1918]" pageId="9" pageNumber="43">
The males of
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1035,1167,260,284]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[1035,1044,261,284]" italics="true" pageId="9" pageNumber="43">I</emphasis>
.
<emphasis box="[1059,1167,260,284]" italics="true" pageId="9" pageNumber="43">baumanni</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[1229,1337,260,284]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[1229,1337,260,284]" italics="true" pageId="9" pageNumber="43">I. tilasqua</emphasis>
</taxonomicName>
are very similar, with the exception of recently preserved specimens. Males of
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1121,1265,331,355]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[1121,1265,331,355]" italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
have yellow abdominal pigmentation which can be easily separated from the much darker
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[1262,1377,402,426]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[1262,1377,402,426]" italics="true" pageId="9" pageNumber="43">I. tilasqua</emphasis>
</taxonomicName>
. The aedeagal spinulae and lobe characters are very similar; both species possess one large patch of spinulae concentrated below the posteromedian lobe, a long thin patch along posteroapical margin, and bulbous apex deeply inverted (
<figureCitation box="[1229,1311,580,604]" captionStart="Figs" captionStartId="8.[189,236,1752,1774]" captionTargetBox="[336,1296,246,1699]" captionTargetId="figure-54@8.[336,1296,246,1699]" captionText="Figs. 3-4. Adult male characters of Isoperla baumanni, Domingo Springs, Plumas Co., CA and I.bifurcata, Mosquito Spring, Plumas Co., CA, 25-50x. Fig. 3a. I. baumanni aedeagus, lateral; large posterobasal spinule patch &amp; thin apical patch (arrows). Lobes A: posterobasal, B: posteromedian. Fig. 3b. Aedeagus, posterior; large basal spinule patch (arrow).Fig. 3c. Paraproct (white arrow); apical thin spinule patch (black arrow). Fig. 3d. Vesicle. Fig. 4a. I. bifurcata aedeagus, lateral. Lobes A: posterobasal, B: posteromedian, C: dorsal, D: anterior lobe.Sclerotized process characters 1: base, 2: median arm, 3: bifurcate arms, 4: subapical barb &amp; apical tine. Fig. 4b. Aedeagus, ventral. Fig. 4c. Paraproct (arrow). Fig. 4d. Vesicle" figureDoi="http://doi.org/10.5281/zenodo.4764052" httpUri="https://zenodo.org/record/4764052/files/figure.png" pageId="9" pageNumber="43">Figs. 3</figureCitation>
a-c, 17a-c).
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[835,1009,615,639]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[835,1009,615,639]" italics="true" pageId="9" pageNumber="43">Isoperla tilasqua</emphasis>
</taxonomicName>
differs slightly from
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1256,1385,615,639]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[1256,1385,615,639]" italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
(live everted) by usually possessing a pair of small apicolateral lobes (similar to
<taxonomicName authority="(Hagen 1874))" authorityName=": Szczytko &amp; Stewart" authorityYear="1979" baseAuthorityName="Hagen" baseAuthorityYear="1874" box="[1177,1440,686,711]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="sobria">
<emphasis box="[1177,1264,686,710]" italics="true" pageId="9" pageNumber="43">I. sobria</emphasis>
(
<bibRefCitation author="Hagen, H. A." box="[1279,1422,687,711]" pageId="9" pageNumber="43" pagination="571 - 606" refId="ref17984" refString="Hagen, H. A. 1874. Report on the Pseudo-Neuroptera and Neuroptera collected by Lieut. W. L. Carpenter in 1873 in Colorado. Pp. 571 - 606. In F. V. Hayden (editor). Annual Report of the United States Geological and Geographical Survey of the Territories, embracing Colorado, being a Report of Progress of the Exploration for the year 1873. Government Printing Office, Washington, D. C. 688 pp." type="book chapter" year="1874">Hagen 1874</bibRefCitation>
))
</taxonomicName>
. Males of both species may be identified using the thin extended apical lobe characters illustrated in
<bibRefCitation author="Szczytko, S. W. &amp; K. W. Stewart" box="[835,1146,793,817]" pageId="9" pageNumber="43" pagination="1 - 120" refId="ref18581" refString="Szczytko, S. W. &amp; K. W. Stewart. 1979. The genus Isoperla (Plecoptera) of western North America; Holomorphology and systematics, and a new stonefly genus Cascadoperla. Memoirs of the American Entomological Society, 32: 1 - 120." type="journal article" year="1979">Szczytko &amp; Stewart (1979</bibRefCitation>
, fig. 116; 1984, fig. 53);
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
has only one extended tube-like lobe and
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[835,953,864,888]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[835,953,864,888]" italics="true" pageId="9" pageNumber="43">I. tilasqua</emphasis>
</taxonomicName>
has two.
<bibRefCitation author="Sandberg, J. B." box="[1087,1306,864,888]" pageId="9" pageNumber="43" pagination="202 - 258" refId="ref18432" refString="Sandberg, J. B. 2011 b. The Isoperla of California (Plecoptera: Perlodidae); larval descriptions and a key to 17 western Nearctic species. Illiesia, 7: 202 - 258." type="journal article" year="2011">Sandberg (2011b)</bibRefCitation>
suggested that extended lobes are normally inverted internal structures, and evert only when using the KOH clearing-eversion method for preserved males (
<bibRefCitation author="Szczytko, S. W. &amp; K. W. Stewart" box="[843,1154,1006,1030]" pageId="9" pageNumber="43" pagination="1 - 120" refId="ref18581" refString="Szczytko, S. W. &amp; K. W. Stewart. 1979. The genus Isoperla (Plecoptera) of western North America; Holomorphology and systematics, and a new stonefly genus Cascadoperla. Memoirs of the American Entomological Society, 32: 1 - 120." type="journal article" year="1979">Szczytko &amp; Stewart 1979</bibRefCitation>
). These lobes could not be everted using the live eversion, hot water fixing, and KOH clearing methods described in this study.
</paragraph>
<paragraph blockId="9.[835,1444,225,1918]" pageId="9" pageNumber="43">
The aedeagi of live everted
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1223,1359,1148,1172]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[1223,1232,1149,1172]" italics="true" pageId="9" pageNumber="43">I</emphasis>
.
<emphasis box="[1251,1359,1148,1172]" italics="true" pageId="9" pageNumber="43">baumanni</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[1427,1436,1149,1172]" italics="true" pageId="9" pageNumber="43">I</emphasis>
.
<emphasis box="[835,919,1184,1208]" italics="true" pageId="9" pageNumber="43">tilasqua</emphasis>
</taxonomicName>
were cleared in KOH to detect the inverted tube-like processes. The internal membrane of a single inverted apical process was visible inside the aedeagus of
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[981,1111,1290,1314]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[981,990,1291,1314]" italics="true" pageId="9" pageNumber="43">I</emphasis>
.
<emphasis box="[1003,1111,1290,1314]" italics="true" pageId="9" pageNumber="43">baumanni</emphasis>
</taxonomicName>
after clearing (
<figureCitation box="[1286,1380,1290,1315]" captionStart="Figs" captionStartId="27.[189,236,1503,1525]" captionTargetBox="[294,1339,251,1437]" captionTargetId="figure-54@27.[294,1339,251,1437]" captionText="Figs. 20a-f. The cleared aedeagus of six western Nearctic Isoperla species after live evertion; membranous opening of internal tube like process or apex (white arrows); tube like internal process (black arrows). 50x (20b, d &amp; e, cropped and enlarged). 20a. I. baumanni, lateral view, partially everted; 20b. I. fulva, lateral view; 20c. I. marmorata, lateral view; 20d. I. miwok, dorsoapical view, tube like process openings along anteroapical margin; 20e. I. roguensis, ventral view, tube like process openings along anteroapical margin; 20f. I. tilasqua, lateral view." figureDoi="http://doi.org/10.5281/zenodo.4764597" httpUri="https://zenodo.org/record/4764597/files/figure.png" pageId="9" pageNumber="43">Fig. 20a</figureCitation>
). The apical inverted process could only be partially everted for
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[990,1129,1361,1385]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[990,1129,1361,1385]" italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
, with the longitudinally striated apex remaining inverted. For
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[1301,1412,1397,1421]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[1301,1412,1397,1421]" italics="true" pageId="9" pageNumber="43">I. tilasqua</emphasis>
</taxonomicName>
, a pair of inverted tube-like processes could be observed within the aedeagus, but could not be everted after clearing (
<figureCitation box="[1100,1192,1504,1528]" captionStart="Figs" captionStartId="27.[189,236,1503,1525]" captionTargetBox="[294,1339,251,1437]" captionTargetId="figure-54@27.[294,1339,251,1437]" captionText="Figs. 20a-f. The cleared aedeagus of six western Nearctic Isoperla species after live evertion; membranous opening of internal tube like process or apex (white arrows); tube like internal process (black arrows). 50x (20b, d &amp; e, cropped and enlarged). 20a. I. baumanni, lateral view, partially everted; 20b. I. fulva, lateral view; 20c. I. marmorata, lateral view; 20d. I. miwok, dorsoapical view, tube like process openings along anteroapical margin; 20e. I. roguensis, ventral view, tube like process openings along anteroapical margin; 20f. I. tilasqua, lateral view." figureDoi="http://doi.org/10.5281/zenodo.4764597" httpUri="https://zenodo.org/record/4764597/files/figure.png" pageId="9" pageNumber="43">Fig. 20f</figureCitation>
).
</paragraph>
<paragraph blockId="9.[835,1444,225,1918]" pageId="9" pageNumber="43">
The
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[930,1066,1539,1563]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[930,1066,1539,1563]" italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
aedeagal shape, stout spinule patches, paraproct and vesicle shape are also similar to
<taxonomicName authority="(Needham &amp; Claassen 1925)" baseAuthorityName="Needham &amp; Claassen" baseAuthorityYear="1925" box="[877,1401,1610,1634]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="gravitans">
<emphasis box="[877,1014,1611,1634]" italics="true" pageId="9" pageNumber="43">I. gravitans</emphasis>
(
<bibRefCitation author="Needham, J. G. &amp; P. W. Claassen" box="[1041,1393,1610,1634]" pageId="9" pageNumber="43" refId="ref18365" refString="Needham, J. G. &amp; P. W. Claassen. 1925. A monograph of the Plecoptera or stoneflies of America north of Mexico. Thomas Say Foundation, 397 pp." type="book" year="1925">Needham &amp; Claassen 1925</bibRefCitation>
)
</taxonomicName>
in
<bibRefCitation author="Szczytko, S. W. &amp; K. W. Stewart" box="[835,1144,1646,1670]" pageId="9" pageNumber="43" pagination="1 - 120" refId="ref18581" refString="Szczytko, S. W. &amp; K. W. Stewart. 1979. The genus Isoperla (Plecoptera) of western North America; Holomorphology and systematics, and a new stonefly genus Cascadoperla. Memoirs of the American Entomological Society, 32: 1 - 120." type="journal article" year="1979">Szczytko &amp; Stewart (1979</bibRefCitation>
, figs. 106-110).
<bibRefCitation author="Sandberg, J. B." pageId="9" pageNumber="43" pagination="202 - 258" refId="ref18432" refString="Sandberg, J. B. 2011 b. The Isoperla of California (Plecoptera: Perlodidae); larval descriptions and a key to 17 western Nearctic species. Illiesia, 7: 202 - 258." type="journal article" year="2011">Sandberg (2011b)</bibRefCitation>
also had difficulty separating
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1307,1443,1681,1705]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[1307,1443,1681,1705]" italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
from
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[900,1006,1717,1741]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">
<emphasis box="[900,1006,1717,1741]" italics="true" pageId="9" pageNumber="43">I. tilasqua</emphasis>
</taxonomicName>
nymphs using lacinia characters and tentatively placed
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1049,1178,1752,1776]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">
<emphasis box="[1049,1178,1752,1776]" italics="true" pageId="9" pageNumber="43">I. baumanni</emphasis>
</taxonomicName>
into the
<taxonomicName authorityName=": Szczytko &amp; Stewart" authorityYear="1979" baseAuthorityName="Hagen" baseAuthorityYear="1874" box="[1275,1357,1752,1776]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="sobria">
<emphasis box="[1275,1357,1752,1776]" italics="true" pageId="9" pageNumber="43">I. sobria</emphasis>
</taxonomicName>
species complex. The three species appear to have locally restricted distributions and further study will be necessary to understand species limits of
<emphasis italics="true" pageId="9" pageNumber="43">
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1984" box="[1311,1439,1859,1883]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="baumanni">I. baumanni</taxonomicName>
,
<taxonomicName authorityName="Szczytko &amp; Stewart" authorityYear="1979" box="[835,944,1894,1918]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="tilasqua">I. tilasqua</taxonomicName>
,
</emphasis>
and
<taxonomicName baseAuthorityName="Needham &amp; Claassen" baseAuthorityYear="1925" box="[1007,1131,1895,1918]" class="Insecta" family="Perlodidae" genus="Isoperla" kingdom="Animalia" order="Plecoptera" pageId="9" pageNumber="43" phylum="Arthropoda" rank="species" species="gravitans">
<emphasis box="[1007,1131,1895,1918]" italics="true" pageId="9" pageNumber="43">I. gravitans</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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