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<mods:title>Diura Washingtoniana (Hanson) Resurrected From Synonymy With D. Nanseni (Kempny) (Plecoptera: Perlodidae), Supplemented With A Description Of The Larva And Egg And Comparison To Other Congeners</mods:title>
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<mods:namePart>Nelson, Charles H.</mods:namePart>
<mods:affiliation>and C. Riley Nelson &amp; Department of Biology, Geology and Environmental Science, University of Tennessee at Chattanooga, Chattanooga, TN, U. S. A. E-mail: charles-nelson @ utc. edu</mods:affiliation>
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<mods:namePart>Nelson, C. Riley</mods:namePart>
<mods:affiliation>Department of Biology, Brigham Young University, Provo, Utah, U. S. A. E-mail: rileynelson @ byu. edu</mods:affiliation>
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<mods:title>Illiesia</mods:title>
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<emphasis bold="true" box="[839,1090,911,935]" italics="true" pageId="3" pageNumber="4">Diura washingtoniana</emphasis>
(
<bibRefCitation author="Hanson, J. F." box="[1102,1253,911,935]" pageId="3" pageNumber="4" pagination="147 - 150" refId="ref13310" refString="Hanson, J. F. 1940. Descriptions of new North American Plecoptera. Proceedings of the Entomological Society of Washington, 42: 147 - 150." type="journal article" year="1940">Hanson, 1940</bibRefCitation>
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, species propria
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Presidential Springfly http://lsid.speciesfile.org/urn:lsid: 
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.speciesfile.org: TaxonName:502549
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<figureCitation box="[1077,1201,1048,1073]" captionStart-0="Fig" captionStart-1="Figs" captionStart-2="Figs" captionStart-3="Figs" captionStart-4="Figs" captionStart-5="Figs" captionStartId-0="1.[189,230,921,945]" captionStartId-1="2.[189,241,1517,1541]" captionStartId-2="4.[189,241,1089,1113]" captionStartId-3="5.[189,241,1789,1813]" captionStartId-4="6.[189,241,1415,1439]" captionStartId-5="8.[189,241,1473,1497]" captionTargetBox-1="[272,1317,262,1456]" captionTargetBox-2="[286,1343,249,1042]" captionTargetBox-3="[272,1340,255,1730]" captionTargetBox-4="[249,1383,283,1367]" captionTargetBox-5="[249,1382,247,1425]" captionTargetId-0="figure-420@1.[324,1307,247,875]" captionTargetId-1="figure-200@2.[249,1383,247,1471]" captionTargetId-2="figure-411@4.[286,1344,247,1042]" captionTargetId-3="figure-117@5.[249,1383,247,1742]" captionTargetId-4="figure-256@6.[249,1383,283,1369]" captionTargetId-5="figure-228@8.[249,1383,247,1427]" captionTargetPageId-0="1" captionTargetPageId-1="2" captionTargetPageId-2="4" captionTargetPageId-3="5" captionTargetPageId-4="6" captionTargetPageId-5="8" captionText-0="Fig. 1. Diura washingtoniana. Female and male habitus." captionText-1="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." captionText-2="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." captionText-3="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." captionText-4="Figs. 23-26. Diura washingtoniana (Coos County, New Hampshire, USA). 23. Adult male tergum 10 with sensilla basiconica, dorsal. 24. Adult male paraprocts, biased lateral. 25. Larval left mandible, ventral. 26. Larval right lacinia, ventral." captionText-5="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi-0="http://doi.org/10.5281/zenodo.4763738" figureDoi-1="http://doi.org/10.5281/zenodo.4761154" figureDoi-2="http://doi.org/10.5281/zenodo.4761156" figureDoi-3="http://doi.org/10.5281/zenodo.4761158" figureDoi-4="http://doi.org/10.5281/zenodo.4761160" figureDoi-5="http://doi.org/10.5281/zenodo.4761162" httpUri-0="https://zenodo.org/record/4763738/files/figure.png" httpUri-1="https://zenodo.org/record/4761154/files/figure.png" httpUri-2="https://zenodo.org/record/4761156/files/figure.png" httpUri-3="https://zenodo.org/record/4761158/files/figure.png" httpUri-4="https://zenodo.org/record/4761160/files/figure.png" httpUri-5="https://zenodo.org/record/4761162/files/figure.png" pageId="3" pageNumber="4">Figs. 1 - 30</figureCitation>
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<emphasis box="[873,1214,1123,1144]" italics="true" pageId="3" pageNumber="4">Dictyopterygella washingtoniana</emphasis>
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, (
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, 
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<emphasis box="[873,1013,1221,1242]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
<bibRefCitation author="Brinck, P." box="[1020,1174,1220,1242]" pageId="3" pageNumber="4" pagination="12 - 50" refId="ref12873" refString="Brinck, P. 1949. Studies on Swedish stoneflies (Plecoptera). Opuscula Entomologica, Supplement 11: 12 - 50." type="journal article" year="1949">Brinck 1949:65</bibRefCitation>
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<emphasis box="[873,1013,1253,1274]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
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“ 
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subsp. 
<emphasis box="[1105,1260,1252,1273]" italics="true" pageId="3" pageNumber="4">washingtoniana</emphasis>
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” 
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<taxonomicName authority="Illies 1966: 383" authorityName="Illies" authorityPageNumber="383" authorityYear="1966" box="[873,1168,1285,1307]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="nanseni">
<emphasis box="[873,1013,1286,1307]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
<bibRefCitation author="Illies, J." box="[1020,1168,1285,1307]" pageId="3" pageNumber="4" pagination="1 - 632" refId="ref13702" refString="Illies, J. 1966. Katalog der rezenten Plecoptera. Das Tierreich, 82: I - XXX, 1 - 632, 20 figures. Walter de Gruyter. Berlin." type="book chapter" year="1966">Illies 1966:383</bibRefCitation>
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<taxonomicName authority="Zwick 1973: 228" authorityName="Zwick" authorityPageNumber="228" authorityYear="1973" box="[873,1185,1317,1339]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="nanseni">
<emphasis box="[873,1013,1318,1339]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
<bibRefCitation author="Zwick, P." box="[1020,1185,1317,1339]" pageId="3" pageNumber="4" pagination="1 - 465" refId="ref16002" refString="Zwick, P. 1973. Insecta: Plecoptera. Phylogenetisches System und Katalog. Das Tierreich 94: I - XXXII, 1 - 465, 75 figures. Walter de Gruyter, Berlin, New York." type="book chapter" year="1973">Zwick 1973:228</bibRefCitation>
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<taxonomicName authority="Hitchcock 1974: 230" authorityName="Hitchcock" authorityPageNumber="230" authorityYear="1974" box="[873,1383,1350,1372]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="3" pageNumber="4" phylum="Arthropoda" rank="subSpecies" species="nanseni" subSpecies="washingtoniana">
<emphasis box="[873,1175,1350,1371]" italics="true" pageId="3" pageNumber="4">Diura nanseni washingtoniana</emphasis>
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<emphasis box="[873,1013,1383,1404]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
<bibRefCitation author="Stark, B. P. &amp; S. W. Szczytko &amp; C. R. Nelson" box="[1020,1221,1382,1404]" pageId="3" pageNumber="4" refId="ref15219" refString="Stark, B. P., S. W. Szczytko, &amp; C. R. Nelson. 1998. American Stoneflies: A Photographic Guide to the Plecoptera. The Caddis Press, Columbus, OH. iv + 126 pp." type="book" year="1998">Stark et al. 1998: 56</bibRefCitation>
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<emphasis box="[873,1013,1415,1436]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
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<emphasis box="[873,1013,1448,1469]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
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</treatmentCitationGroup>
</paragraph>
<paragraph blockId="3.[835,1444,1123,1824]" box="[873,1348,1479,1501]" pageId="3" pageNumber="4">
<treatmentCitationGroup box="[873,1348,1479,1501]" pageId="3" pageNumber="4">
<treatmentCitation box="[873,1348,1479,1501]" pageId="3" pageNumber="4">
<taxonomicName authority="DeWalt et al. 2017" authorityName="DeWalt" authorityYear="2017" box="[873,1211,1479,1501]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="nanseni">
<emphasis box="[873,1013,1480,1501]" italics="true" pageId="3" pageNumber="4">Diura nanseni</emphasis>
DeWalt et al. 2017
</taxonomicName>
2018: in part
</treatmentCitation>
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4" type="materials_examined">
<paragraph blockId="3.[835,1444,1123,1824]" pageId="3" pageNumber="4">
<emphasis bold="true" box="[835,1070,1512,1536]" pageId="3" pageNumber="4">Material examined.</emphasis>
<materialsCitation ID-GBIF-Occurrence="3111692323" pageId="3" pageNumber="4">
Specimens of 
<taxonomicName authority="Klapálek, 1904" authorityName="Hanson" authorityYear="1940" box="[1237,1443,1512,1536]" class="Insecta" family="Perlodidae" genus="Dictyopterygella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plecoptera" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="washingtoniana">
<emphasis box="[1237,1258,1513,1536]" italics="true" pageId="3" pageNumber="4">D</emphasis>
. 
<emphasis box="[1271,1443,1512,1536]" italics="true" pageId="3" pageNumber="4">washingtoniana</emphasis>
</taxonomicName>
examined for this study are consistent with previous descriptions and illustrations (
<bibRefCitation author="Hanson, J. F." pageId="3" pageNumber="4" pagination="147 - 150" refId="ref13310" refString="Hanson, J. F. 1940. Descriptions of new North American Plecoptera. Proceedings of the Entomological Society of Washington, 42: 147 - 150." type="journal article" year="1940">Hanson 1940</bibRefCitation>
, 
<bibRefCitation author="Brinck, P." box="[904,1044,1620,1644]" pageId="3" pageNumber="4" pagination="190 - 201" refId="ref12916" refString="Brinck, P. 1954. On the classification of the Plecopteran subfamily Perlodinae. Opuscula Entomologica, 19: 190 - 201." type="journal article" year="1954">Brinck 1954</bibRefCitation>
, 
<bibRefCitation author="Hitchcock, S. W." box="[1057,1240,1620,1645]" pageId="3" pageNumber="4" refId="ref13404" refString="Hitchcock, S. W. 1974. Guide to the insects of Connecticut. Part VII. The Plecoptera or stoneflies of Connecticut. State Geological and Natural History Survey of Connecticut, Department of Environmental Protection. Bulletin Number 107: vi + 262 pp." type="book" year="1974">Hitchcock 1974</bibRefCitation>
, and 
<bibRefCitation author="Kondratieff, B. C." pageId="3" pageNumber="4" pagination="149 - 180" refId="ref14086" refString="Kondratieff, B. C. 2004. Perlodidae - Perlodinae (the springflies), pp. 149 - 180. In B. P. Stark &amp; B. J. Armitage (eds.), Stoneflies (Plecoptera) of Eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey New Series, 14, vi + 192 pp." type="book chapter" year="2004">Kondratieff 2004</bibRefCitation>
) of this species:
</materialsCitation>
<materialsCitation ID-GBIF-Occurrence="3111692342" pageId="3" pageNumber="4">
<emphasis bold="true" box="[1106,1163,1656,1680]" pageId="3" pageNumber="4">
<collectingCountry box="[1106,1163,1656,1680]" name="United States of America" pageId="3" pageNumber="4">USA</collectingCountry>
</emphasis>
; 
<emphasis box="[1183,1364,1656,1680]" italics="true" pageId="3" pageNumber="4">
<collectingRegion box="[1183,1364,1656,1680]" country="United States of America" name="New Hampshire" pageId="3" pageNumber="4">New Hampshire</collectingRegion>
</emphasis>
; Coos County, Lakes of the Clouds between Mt. 
<collectingRegion box="[835,978,1729,1753]" country="United States of America" name="Washington" pageId="3" pageNumber="4">Washington</collectingRegion>
and Mt. Monroe, collector unknown, 
<date pageId="3" pageNumber="4" value="1907-07-04">4 July 1907</date>
, 
<specimenCount box="[965,999,1764,1789]" pageId="3" pageNumber="4" type="male">1♂</specimenCount>
, 
<specimenCount box="[1017,1051,1764,1789]" pageId="3" pageNumber="4" type="female">1♀</specimenCount>
(paratopotypes) (CHNC). Same site, D. Arenburg,
</materialsCitation>
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.4761156" ID-Zenodo-Dep="4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="4" pageNumber="5" startId="4.[189,241,1089,1113]" targetBox="[286,1343,249,1042]" targetPageId="4">
<paragraph blockId="4.[189,1442,1089,1149]" pageId="4" pageNumber="5">
Figs. 11–14. 
<taxonomicName box="[339,576,1089,1113]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="washingoniana">
<emphasis box="[339,576,1089,1113]" italics="true" pageId="4" pageNumber="5">Diura washingoniana</emphasis>
</taxonomicName>
adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral.
</paragraph>
</caption>
<paragraph blockId="4.[189,798,1233,1869]" pageId="4" pageNumber="5">
<materialsCitation ID-GBIF-Occurrence="3111692328" collectingDate="1939-06-17" collectionCode="CHNC" collectorName="Same &amp; C. H. Nelson &amp; E. S. Nelson" pageId="4" pageNumber="5" specimenCount="9" specimenCount-female="4" specimenCount-male="5">
<date box="[189,335,1233,1257]" pageId="4" pageNumber="5" value="1939-06-17">
<collectingDate box="[189,335,1233,1257]" pageId="4" pageNumber="5" value="1939-06-17">17 June 1939</collectingDate>
</date>
, 
<specimenCount box="[345,378,1233,1257]" pageId="4" pageNumber="5" type="male">5♂</specimenCount>
, 
<specimenCount box="[390,423,1233,1257]" pageId="4" pageNumber="5" type="female">4♀</specimenCount>
(paratopotypes) (
<collectionCode box="[630,717,1233,1257]" pageId="4" pageNumber="5">CHNC</collectionCode>
). 
<collectorName box="[733,797,1233,1257]" pageId="4" pageNumber="5">Same</collectorName>
site, 
<collectorName box="[243,388,1269,1293]" pageId="4" pageNumber="5">C.H. Nelson</collectorName>
and 
<collectorName box="[445,581,1269,1293]" pageId="4" pageNumber="5">E.S. Nelson</collectorName>
</materialsCitation>
, 
<materialsCitation ID-GBIF-Occurrence="3111692365" collectingDate="1996-06-27" collectionCode="CHNC, BYU, CRN" pageId="4" pageNumber="5" specimenCount="17" specimenCount-female="12" specimenCount-male="5">
<date box="[592,740,1269,1293]" pageId="4" pageNumber="5" value="1996-06-27">
<collectingDate box="[592,740,1269,1293]" pageId="4" pageNumber="5" value="1996-06-27">27 June 1996</collectingDate>
</date>
, 
<specimenCount box="[751,791,1269,1293]" pageId="4" pageNumber="5" type="male">4 ♂</specimenCount>
, 
<specimenCount box="[189,236,1305,1329]" pageId="4" pageNumber="5" type="female">11♀</specimenCount>
, 1 mature larva, 16 exuviae (
<collectionCode box="[602,688,1305,1329]" pageId="4" pageNumber="5">CHNC</collectionCode>
), 
<specimenCount box="[712,746,1305,1329]" pageId="4" pageNumber="5" type="male">1♂</specimenCount>
, 
<specimenCount box="[764,797,1305,1329]" pageId="4" pageNumber="5" type="female">1♀</specimenCount>
(
<collectionCode box="[197,257,1341,1365]" country="USA" name="Monte L. Bean Life Science Museum" pageId="4" pageNumber="5" type="University or college">BYU</collectionCode>
), [
<collectionCode box="[281,342,1341,1365]" pageId="4" pageNumber="5">CRN</collectionCode>
laboratory photo voucher 4]
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection lastPageId="8" lastPageNumber="9" pageId="4" pageNumber="5" type="description">
<paragraph blockId="4.[189,798,1233,1869]" lastBlockId="4.[835,1443,1233,1833]" pageId="4" pageNumber="5">
<emphasis bold="true" box="[189,357,1376,1400]" pageId="4" pageNumber="5">Adult habitus</emphasis>
General color dark chestnut brown in life and in alcohol (
<figureCitation box="[420,486,1413,1437]" captionStart="Fig" captionStartId="1.[189,230,921,945]" captionTargetId="figure-420@1.[324,1307,247,875]" captionTargetPageId="1" captionText="Fig. 1. Diura washingtoniana. Female and male habitus." figureDoi="http://doi.org/10.5281/zenodo.4763738" httpUri="https://zenodo.org/record/4763738/files/figure.png" pageId="4" pageNumber="5">Fig. 1</figureCitation>
, 
<figureCitation box="[500,566,1413,1437]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="4" pageNumber="5">11-14</figureCitation>
). The head dorsum exhibits an almost black X-band with an anterior margin that forms a distinct M-line (
<figureCitation box="[654,737,1485,1509]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="4" pageNumber="5">Figs. 2</figureCitation>
, 
<figureCitation box="[755,783,1485,1509]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="4" pageNumber="5">11</figureCitation>
). Anterior to the M-line is a lighter area that extends onto the clypeus; in some individuals it is shaped as a vague light M-band. Frontoclypeus with small orange-yellow oval-shaped spot near the base of each antenna and mandible. The interocellular area exhibits an orange-yellow subtriangular spot. The vertex and occiput is dark brown with a broad, longitudinal, orange-yellow, median band adjacent to, but clearly separated from, the interocellular area. Pronotum (
<figureCitation box="[412,502,1844,1869]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="4" pageNumber="5">Figs. 2</figureCitation>
, 
<figureCitation box="[526,553,1845,1869]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="4" pageNumber="5">11</figureCitation>
) dark brown and exhibiting a uniformly wide longitudinal, orangeyellow, median band. Meso- and metathoracic eusterna (
<figureCitation box="[960,1033,1305,1329]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
) dark brown with lateral areas slightly more darkly pigmented. The mesothoracic sternum (
<figureCitation box="[948,1012,1377,1401]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
) with a complete sternacostal suture (ss) separating the basisternum (bs) from the furcasternum (fs). Only the first two abdominal segments divided on each side by a pleural membrane into a separate tergum and sternum.
</paragraph>
<paragraph blockId="4.[835,1443,1233,1833]" pageId="4" pageNumber="5">
<emphasis bold="true" box="[835,904,1557,1581]" pageId="4" pageNumber="5">Male.</emphasis>
Body Length 10.1 – 15.7 (𝑥 = 11.6) mm (n = 10). Macropterous, forewing length 7.0-8.3 (𝑥 = 7.7) mm (n=9). Tergum 8 (
<figureCitation box="[1063,1137,1629,1653]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="4" pageNumber="5">Fig. 4</figureCitation>
) partially divided by a narrow, longitudinal, pale median strip that extends from near the posterior margin to near the anterior margin; setose and bearing a few blunt, stout sensilla basiconica near the hind margin on each side of the median strip. Tergum 9 (
<figureCitation box="[1256,1321,1809,1833]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="4" pageNumber="5">Fig. 4</figureCitation>
)
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.4761158" ID-Zenodo-Dep="4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="5" pageNumber="6" startId="5.[189,241,1789,1813]" targetBox="[272,1340,255,1730]" targetPageId="5">
<paragraph blockId="5.[189,1443,1789,1921]" pageId="5" pageNumber="6">
Figs. 15–22. 
<taxonomicName baseAuthorityName="Hanson" baseAuthorityYear="1940" box="[335,579,1789,1813]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" species="washingtoniana">
<emphasis box="[335,579,1789,1813]" italics="true" pageId="5" pageNumber="6">Diura washingtoniana</emphasis>
</taxonomicName>
, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm.
</paragraph>
</caption>
<caption ID-DOI="http://doi.org/10.5281/zenodo.4761160" ID-Zenodo-Dep="4761160" httpUri="https://zenodo.org/record/4761160/files/figure.png" pageId="6" pageNumber="7" startId="6.[189,241,1415,1439]" targetBox="[249,1383,283,1367]" targetPageId="6">
<paragraph blockId="6.[189,1442,1415,1511]" pageId="6" pageNumber="7">
Figs. 23-26. 
<taxonomicName baseAuthorityName="Hanson" baseAuthorityYear="1940" box="[333,578,1415,1439]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="6" pageNumber="7" phylum="Arthropoda" rank="species" species="washingtoniana">
<emphasis box="[333,578,1415,1439]" italics="true" pageId="6" pageNumber="7">Diura washingtoniana</emphasis>
</taxonomicName>
(Coos County, New Hampshire, USA). 23. Adult male tergum 10 with sensilla basiconica, dorsal. 24. Adult male paraprocts, biased lateral. 25. Larval left mandible, ventral. 26. Larval right lacinia, ventral.
</paragraph>
</caption>
<paragraph blockId="6.[189,797,1595,1907]" lastBlockId="7.[189,798,257,1900]" lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7">
nearly divided by a pale, narrow, longitudinal, lightly sclerotized area that is a U- or V- shaped at the hind margin and extends anteriorly as a narrow strip to near the front margin; setose with a posterior mesal patch of blunt, stout sensilla basiconica on each side of the median strip (
<figureCitation box="[549,617,1774,1799]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="6" pageNumber="7">Fig. 4</figureCitation>
). Tergum 
<quantity box="[739,796,1774,1799]" metricMagnitude="-1" metricUnit="m" metricValue="2.54" pageId="6" pageNumber="7" unit="in" value="10.0">10 in</quantity>
dorsal view (
<figureCitation box="[368,447,1811,1835]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="6" pageNumber="7">Fig. 4</figureCitation>
, 
<figureCitation box="[472,499,1811,1835]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="6" pageNumber="7">12</figureCitation>
) produced posteriorly; anterior half darker; divided by a paler, narrow, longitudinal, lightly sclerotized median strip that from the central broad triangular-shaped area at the posterior margin extends to the anterior margin; setose with a mesal patch of blunt, stout sensilla basiconica on each side of the median strip (
<figureCitation box="[1359,1437,1702,1727]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="6" pageNumber="7">Figs. 4</figureCitation>
, 
<figureCitation box="[835,865,1739,1763]" captionStart="Figs" captionStartId="6.[189,241,1415,1439]" captionTargetBox="[249,1383,283,1367]" captionTargetId="figure-256@6.[249,1383,283,1369]" captionTargetPageId="6" captionText="Figs. 23-26. Diura washingtoniana (Coos County, New Hampshire, USA). 23. Adult male tergum 10 with sensilla basiconica, dorsal. 24. Adult male paraprocts, biased lateral. 25. Larval left mandible, ventral. 26. Larval right lacinia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761160" httpUri="https://zenodo.org/record/4761160/files/figure.png" pageId="6" pageNumber="7">23</figureCitation>
). Tergum 
<quantity box="[1008,1076,1739,1763]" metricMagnitude="-1" metricUnit="m" metricValue="2.54" pageId="6" pageNumber="7" unit="in" value="10.0">10 in</quantity>
lateral view posteromesally somewhat convex (
<figureCitation box="[1103,1190,1774,1798]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="6" pageNumber="7">Fig. 5</figureCitation>
). Epiproct absent. Paraprocts extend from cerci on each side to meet at the median where they abruptly project caudally and are appressed or lie close to each other (
<figureCitation captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7">Figs. 4, 7</figureCitation>
). Inner surfaces of paraproct caudal projections membranous with outer surfaces largely sclerotized (
<figureCitation box="[197,304,329,353]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Figs. 6, 7</figureCitation>
) and setose bearing both short as well as long, slender setae. Caudal projections in dorsal and ventral views (
<figureCitation box="[377,495,401,425]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Figs. 4, 7</figureCitation>
, 
<figureCitation box="[514,542,401,425]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="7" pageNumber="8">12</figureCitation>
) digitate with outer surfaces broadly convex, apices somewhat bulbous; in lateral view (
<figureCitation box="[374,478,473,497]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Figs. 5, 6</figureCitation>
, 
<figureCitation box="[490,518,473,497]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="7" pageNumber="8">13</figureCitation>
, 
<figureCitation box="[530,558,473,497]" captionStart="Figs" captionStartId="6.[189,241,1415,1439]" captionTargetBox="[249,1383,283,1367]" captionTargetId="figure-256@6.[249,1383,283,1369]" captionTargetPageId="6" captionText="Figs. 23-26. Diura washingtoniana (Coos County, New Hampshire, USA). 23. Adult male tergum 10 with sensilla basiconica, dorsal. 24. Adult male paraprocts, biased lateral. 25. Larval left mandible, ventral. 26. Larval right lacinia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761160" httpUri="https://zenodo.org/record/4761160/files/figure.png" pageId="7" pageNumber="8">24</figureCitation>
) digitate, appearing boot-like as a result of upturned apices with broadly rounded margins.
</paragraph>
<paragraph blockId="7.[189,798,257,1900]" lastBlockId="8.[189,797,1617,1929]" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8">
<emphasis bold="true" box="[189,283,580,604]" pageId="7" pageNumber="8">Female.</emphasis>
Body length 11.1 – 16.6 (𝑥 = 14. 7) mm (n = 16). Macropterous, forewing length 8.9 – 11.7 (𝑥 =10.6) mm (n=16). Sternum 8 with mesal area darker than immediate lateral areas. Subgenital plate extends for a short distance over sternum 9 (
<figureCitation box="[197,276,760,785]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Figs. 8</figureCitation>
, 
<figureCitation box="[289,318,761,785]" captionStart="Figs" captionStartId="4.[189,241,1089,1113]" captionTargetBox="[286,1343,249,1042]" captionTargetId="figure-411@4.[286,1344,247,1042]" captionTargetPageId="4" captionText="Figs. 11–14. Diura washingoniana adult (Coos County, New Hampshire, USA). 11. Head and pronotum, dorsal. 12. Male terminalia, dorsal. 13. Male paraprocts, lateral, 14. Female terminalia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761156" httpUri="https://zenodo.org/record/4761156/files/figure.png" pageId="7" pageNumber="8">14</figureCitation>
); shape variable (
<figureCitation box="[528,596,760,785]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Fig. 9</figureCitation>
), lateral margins either broadly rounded or become abruptly narrowed posteriorly, posterior margin either evenly rounded or slightly excavated mesally or truncate; ca 3.1 – 4.4 times as wide as long. Sternum 9 bearing two oblique brown bands (
<figureCitation box="[703,783,940,964]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Fig. 8</figureCitation>
). Spermatheca and vagina (
<figureCitation box="[522,610,976,1001]" captionStart="Figs" captionStartId="2.[189,241,1517,1541]" captionTargetBox="[272,1317,262,1456]" captionTargetId="figure-200@2.[249,1383,247,1471]" captionTargetPageId="2" captionText="Figs. 2–10. Diura washingtoniana, adult. 2. Head and pronotum, dorsal. 3. Mesothorax, ventral. bs = basisternum, fs = furcasternum, ss =sternacostal suture. 4. Male terminalia, dorsal. 5. Male terminalia, lateral. 6. Paraproct caudal projections, lateral and frontal. 7. Paraprocts, ventral. 8. Female terminalia, ventral. 9. Examples of female subgenital plate variation. 10. Spermatheca and vagina. ag = accessory glands, s = spermatheca, sd = spermathecal duct, v = vagina. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761154" httpUri="https://zenodo.org/record/4761154/files/figure.png" pageId="7" pageNumber="8">Fig. 10</figureCitation>
) membranous; elongate spermatheca (s) elongate, somewhat sausage-link-shaped, approximately 2.3X longer than wide; spermathecal duct (sd) approximately 0.8X length of vagina (v); spermatheca and duct bearing accessory glands (ag). 
<emphasis bold="true" box="[189,264,1192,1216]" pageId="7" pageNumber="8">Larva.</emphasis>
Body length estimated from 1 mature larvae and 16 exuviae 14.5 - 16.5 (𝑥 = 15.5) mm. General body color dark brown patterned with light markings; antennae, legs and cerci light brown. Frontoclypeal region (
<figureCitation box="[493,592,1336,1360]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 15</figureCitation>
) dark brown, exhibiting a light anterior margin and a light mesolongitudinal spot just anterior to a transverse, light M-band connecting to the median ocellus. Interocellular region bears a mesal light ovalshaped spot and is bordered on each side by a light longitudinal band that extends toward the median ocellus from the lateral ocellus. Between the light longitudinal band and the antennal base of each side there is a small light round spot just anterior to the frontal suture. Vertex and occiput (
<figureCitation box="[635,720,1696,1720]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 15</figureCitation>
) dark brown with two oval light bands adjacent to the eyes and between them a transverse triangularshaped light median band; the three light bands are all patterned with dark brown lines. Labrum (
<figureCitation captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 15</figureCitation>
) dark with a mid-anterior light spot bordered on each side by a dark brown band. Left mandible (
<figureCitation captionStart="Figs" captionStartId="6.[189,241,1415,1439]" captionTargetBox="[249,1383,283,1367]" captionTargetId="figure-256@6.[249,1383,283,1369]" captionTargetPageId="6" captionText="Figs. 23-26. Diura washingtoniana (Coos County, New Hampshire, USA). 23. Adult male tergum 10 with sensilla basiconica, dorsal. 24. Adult male paraprocts, biased lateral. 25. Larval left mandible, ventral. 26. Larval right lacinia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761160" httpUri="https://zenodo.org/record/4761160/files/figure.png" pageId="7" pageNumber="8">Fig. 25</figureCitation>
) bearing three major and three minor teeth arranged as follows from dorsal aspect, a group consisting of one major tooth flanked on each side by a minor tooth, followed by a linear arrangement of a minor tooth and two major teeth; the ventralmost major tooth is the largest; teeth lack serrations; a row of acanthae arises from the bases of the three dorsal teeth. Maxillary lacinia triangular; bidentate (
<figureCitation box="[843,933,581,605]" captionStart="Figs" captionStartId="6.[189,241,1415,1439]" captionTargetBox="[249,1383,283,1367]" captionTargetId="figure-256@6.[249,1383,283,1369]" captionTargetPageId="6" captionText="Figs. 23-26. Diura washingtoniana (Coos County, New Hampshire, USA). 23. Adult male tergum 10 with sensilla basiconica, dorsal. 24. Adult male paraprocts, biased lateral. 25. Larval left mandible, ventral. 26. Larval right lacinia, ventral." figureDoi="http://doi.org/10.5281/zenodo.4761160" httpUri="https://zenodo.org/record/4761160/files/figure.png" pageId="7" pageNumber="8">Fig. 26</figureCitation>
), subapical tooth shorter, approximately one-half length of apical tooth; 2 axillary setae at base of subapical tooth; single marginal seta found just below the subapical tooth; inner margin below teeth forms a pronounced shoulder; shoulder and apical third of inner margin below the shoulder bearing setae; scattered sub-marginal setae present. Gills absent. Pronotum (
<figureCitation box="[1122,1201,832,856]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 15</figureCitation>
) with margins light; disc dark brown with light reticulate markings on each side of a light median band; anterior and posterior margins bearing row of short setae interspersed with a few long setae; lateral margins with few or no setae (
<figureCitation box="[1116,1203,1012,1036]" captionStart="Figs" captionStartId="8.[189,241,1473,1497]" captionTargetBox="[249,1382,247,1425]" captionTargetId="figure-228@8.[249,1383,247,1427]" captionTargetPageId="8" captionText="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi="http://doi.org/10.5281/zenodo.4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="7" pageNumber="8">Fig. 27</figureCitation>
). Mesothoracic and metathoracic nota (
<figureCitation box="[1070,1154,1048,1072]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 16</figureCitation>
) dark brown and from anterior to posterior bearing four rows of light spots; first row bears two somewhat indistinct spots, the second and third each exhibit four spots and the fourth a single longitudinal band. Wingpads light with elongate dark brown markings. Legs (
<figureCitation box="[1353,1434,1228,1253]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 17</figureCitation>
) with dorsal margins of the femur, tibia, and tarsi fringed with long, silky setae. Femur (
<figureCitation box="[1285,1364,1300,1325]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 17</figureCitation>
) outer surface, except for narrow medial band, bearing numerous short thick setae. Tibia (
<figureCitation box="[1274,1358,1372,1396]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 17</figureCitation>
) outer surface with setae on dorsal and ventral areas. Only abdominal segments 1 &amp; 2 divided by a pleural membrane of each side into separate terga and sterna. Abdominal tergal areas (
<figureCitation box="[1210,1282,1516,1540]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig 18</figureCitation>
) dark brown, each with anterior transverse row of light spots and a lighter posteromesal region. In lateral view paraprocts of mature male larva (
<figureCitation box="[1222,1300,1624,1648]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 22</figureCitation>
) with apical sections narrow, elongate and turned dorsally; those of mature female larva somewhat pyramidshaped with apices directed posteriorly, not narrowed or elongate. Stout setae lining eighth sternal margin of mature male larva interrupted mesally for a very short distance (
<figureCitation box="[1333,1431,1840,1864]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="7" pageNumber="8">Fig. 20</figureCitation>
); interrupted in the mature female larva for longer distance, approximately 0.3 width of segment (
<figureCitation captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="8" pageNumber="9">Fig. 21</figureCitation>
). Cercal segments (
<figureCitation box="[453,535,1653,1677]" captionStart="Figs" captionStartId="5.[189,241,1789,1813]" captionTargetBox="[272,1340,255,1730]" captionTargetId="figure-117@5.[249,1383,247,1742]" captionTargetPageId="5" captionText="Figs. 15–22. Diura washingtoniana, larva. 15. Head and pronotum, dorsal. 16. Meso- and metanota, dorsal. 17. Right mesothoracic leg, frontal. 18. Abdomen, dorsal. 19. Right cercus, ventral (basal, mid, and apical segments). 20. Male terminalia, ventral. 21. Female terminalia, ventral. 22. Male and female terminalia, lateral. Scale bars = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.4761158" httpUri="https://zenodo.org/record/4761158/files/figure.png" pageId="8" pageNumber="9">Fig. 19</figureCitation>
) with dorsal margins bearing a fringe of long silky setae; posterior margins bearing a whorl of short setae, beginning with segment 16 posterior margin bearing one or two long setae.
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.4761162" ID-Zenodo-Dep="4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="8" pageNumber="9" startId="8.[189,241,1473,1497]" targetBox="[249,1382,247,1425]" targetPageId="8">
<paragraph blockId="8.[189,1442,1473,1534]" pageId="8" pageNumber="9">
Figs. 27-30. 
<taxonomicName baseAuthorityName="Hanson" baseAuthorityYear="1940" box="[324,565,1473,1497]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="washingtoniana">
<emphasis box="[324,565,1473,1497]" italics="true" pageId="8" pageNumber="9">Diura washingtoniana</emphasis>
</taxonomicName>
(Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral.
</paragraph>
</caption>
<paragraph blockId="8.[189,797,1617,1929]" lastBlockId="8.[835,1443,1617,1929]" pageId="8" pageNumber="9">
<emphasis bold="true" box="[189,241,1832,1856]" pageId="8" pageNumber="9">Egg.</emphasis>
Length ca. 
<quantity box="[391,486,1832,1857]" metricMagnitude="-1" metricUnit="m" metricValue="4.5" pageId="8" pageNumber="9" unit="mm" value="450.0">450 µm</quantity>
; width ca. 
<quantity box="[627,719,1832,1857]" metricMagnitude="-1" metricUnit="m" metricValue="2.98" pageId="8" pageNumber="9" unit="mm" value="298.0">298 µm</quantity>
(n=1). General shape oval (
<figureCitation box="[425,503,1869,1893]" captionStart="Figs" captionStartId="8.[189,241,1473,1497]" captionTargetBox="[249,1382,247,1425]" captionTargetId="figure-228@8.[249,1383,247,1427]" captionTargetPageId="8" captionText="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi="http://doi.org/10.5281/zenodo.4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="8" pageNumber="9">Fig. 28</figureCitation>
); cross-section triangular (
<figureCitation box="[197,282,1905,1929]" captionStart="Figs" captionStartId="8.[189,241,1473,1497]" captionTargetBox="[249,1382,247,1425]" captionTargetId="figure-228@8.[249,1383,247,1427]" captionTargetPageId="8" captionText="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi="http://doi.org/10.5281/zenodo.4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="8" pageNumber="9">Fig. 29</figureCitation>
). Collar ring-shaped and stalked (
<figureCitation box="[700,785,1905,1929]" captionStart="Figs" captionStartId="8.[189,241,1473,1497]" captionTargetBox="[249,1382,247,1425]" captionTargetId="figure-228@8.[249,1383,247,1427]" captionTargetPageId="8" captionText="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi="http://doi.org/10.5281/zenodo.4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="8" pageNumber="9">Fig. 30</figureCitation>
). Anchor plate is mushroom-type of 
<bibRefCitation author="Isobe, Y." box="[1262,1406,1617,1641]" pageId="8" pageNumber="9" pagination="1 - 569" refId="ref13735" refString="Isobe, Y. 1997. Anchors of stonefly eggs. Pp. 349 - 361. In Landolt, P. &amp; M. Sartori (eds.), Ephemeroptera &amp; Plecoptera: Biology-Ecology-Systematics. Proceedings of the Eighth International Conference on Ephemeroptera and the Twelfth International Symposium on Plecoptera held in Switzerland, Lausanne-Fribourg 1995. MTL- Mauron + Tinguely &amp; Lachat SA, Fribourg / Switzerland, pp. i-xi, 1 - 569." type="proceedings paper" year="1997">Isobe (1997)</bibRefCitation>
, in 
<figureCitation box="[835,922,1653,1677]" captionStart="Figs" captionStartId="8.[189,241,1473,1497]" captionTargetBox="[249,1382,247,1425]" captionTargetId="figure-228@8.[249,1383,247,1427]" captionTargetPageId="8" captionText="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi="http://doi.org/10.5281/zenodo.4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="8" pageNumber="9">Fig. 30</figureCitation>
somewhat dorsally-ventrally compressed covering the collar margins and bearing globular processes. Chorionic surface dotted with numerous, slightly raised, similar-sized rounded protuberances (
<figureCitation box="[1018,1147,1797,1821]" captionStart="Figs" captionStartId="8.[189,241,1473,1497]" captionTargetBox="[249,1382,247,1425]" captionTargetId="figure-228@8.[249,1383,247,1427]" captionTargetPageId="8" captionText="Figs. 27-30. Diura washingtoniana (Coos County, New Hampshire, USA). 27. Larval pronotal margins, dorsal. 28. Egg, lateral. 29. Egg, dorsal. 30. Egg collar and anchor, lateral." figureDoi="http://doi.org/10.5281/zenodo.4761162" httpUri="https://zenodo.org/record/4761162/files/figure.png" pageId="8" pageNumber="9">Figs. 28-30</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9" type="diagnosis">
<paragraph blockId="8.[835,1443,1617,1929]" lastBlockId="9.[189,797,257,784]" lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
<emphasis bold="true" box="[835,964,1832,1856]" pageId="8" pageNumber="9">Diagnosis.</emphasis>
<taxonomicName baseAuthorityName="Hanson" baseAuthorityYear="1940" box="[970,1174,1832,1856]" class="Insecta" family="Perlodidae" genus="Diura" kingdom="Animalia" order="Plecoptera" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="washingtoniana">
<emphasis box="[970,991,1833,1856]" italics="true" pageId="8" pageNumber="9">D</emphasis>
. 
<emphasis box="[1003,1174,1832,1856]" italics="true" pageId="8" pageNumber="9">washingtoniana</emphasis>
</taxonomicName>
is distinguished by the following combination of features: (1) male tergum 8 partially divided by a narrow, membranous, pale median strip extending from near the posterior margin to near the anterior margin; (2) male tergum 9 nearly divided by a pale, narrow, longitudinal, lightly sclerotized area that is a U- or V- shaped at the hind margin and extends anteriorly as a narrow strip to near the front margin; (3) male tergum 10 divided by a narrow, membranous, pale median strip that from the central, broad membranous triangular-shaped area at the hind margin extends uninterrupted to the front margin; (4) male terga 8 – 10 bearing patches of blunt, stout sensilla basiconica; (5) male paraproct caudal projections in dorsal view with convex outer surfaces; (6) apices of male paraproct caudal projections broadly rounded and upturned to appear boot-like in lateral view.
</paragraph>
</subSubSection>
</treatment>
</document>