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<mods:title id="60636CDD4E3D142BD8BECBC13DFAB19D">The genus Rhyacophila Stephens (Trichoptera, Rhyacophilidae) in Yakushima Island, northern Ryukyu, southwestern Japan</mods:title>
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<mods:date id="59EC8357A788F8AD8D3F3C826F41F91D">2021</mods:date>
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<paragraph id="8BD936994F2CFFFA68A81FC2FDEDFDE7" blockId="3.[151,517,1507,1571]" box="[151,517,1507,1534]" pageId="3" pageNumber="47">
<heading id="D09181F54F2CFFFA68A81FC2FDEDFDE7" bold="true" box="[151,517,1507,1534]" fontSize="11" level="1" pageId="3" pageNumber="47" reason="1">
<emphasis id="B912EA8B4F2CFFFA68A81FC2FDEDFDE7" bold="true" box="[151,517,1507,1534]" pageId="3" pageNumber="47">
<taxonomicName id="4C664D1A4F2CFFFA68A81FC2FE48FDE7" authority="Ito, 2021" authorityName="Ito" authorityYear="2021" box="[151,416,1507,1534]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="arakawa" status="sp. nov.">
<emphasis id="B912EA8B4F2CFFFA68A81FC2FE48FDE7" bold="true" box="[151,416,1507,1534]" italics="true" pageId="3" pageNumber="47">Rhyacophila arakawa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22157F04F2CFFFA69981FC5FDEDFDE7" box="[423,517,1508,1534]" pageId="3" pageNumber="47" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
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<subSubSection id="C37C65124F2CFFFA68A81C29FD2DFE7D" pageId="3" pageNumber="47" type="description">
<paragraph id="8BD936994F2CFFFA68A81C29FEF5FE3A" blockId="3.[151,517,1507,1571]" box="[151,285,1544,1571]" pageId="3" pageNumber="47">
(
<figureCitation id="135D2A1C4F2CFFFA68A01C29FF0FFE3B" box="[159,231,1544,1570]" captionStart="FIGURE 3" captionStartId="4.[151,250,1761,1785]" captionTargetBox="[188,1416,185,1724]" captionTargetId="figure-16@4.[151,1436,181,1737]" captionTargetPageId="4" captionText="FIGURE 3. Rhyacophila arakawa sp. nov. 3A3D, male: 3A, genitalia, left lateral with enlarged figure of apex of a paramere; 3B, same, dorsal; 3C, apical part of segment X, left ventrolateral; 3D, right inferior appendage, dorsomesal, with enlarged figure of mesal spinules. 3E3I, female: 3E, abdominal segments VIIIXI, left lateral; 3F, segment VIII, dorsal; 3G, same, ventral; 3H, vaginal apparatus, left lateral; 3I, same, ventral. Abbreviations: VIIIXI = abdominal segments VIIIXI; a inf app = apical segment of inferior appendage (paired); ae = aedeagus; ap ba = apical band; b inf app = basal segment of inferior appendage (paired); la pl= lateral plate (paired); pa = paramere (paired); ph = phallotheca; pp = posterior process; ps = processus spermathecae; t b = tergal band." figureDoi="http://doi.org/10.5281/zenodo.5225408" httpUri="https://zenodo.org/record/5225408/files/figure.png" pageId="3" pageNumber="47">Figs 3</figureCitation>
,
<figureCitation id="135D2A1C4F2CFFFA68CB1C29FEFDFE3A" box="[244,277,1544,1571]" captionStart="FIGURE 6" captionStartId="12.[151,250,1943,1967]" captionTargetBox="[232,1361,183,1919]" captionTargetId="figure-16@12.[225,1363,181,1919]" captionTargetPageId="12" captionText="FIGURE 6. Adult collection sites of seven species of Rhyacophila on Yakushima. Solid circle = 14 adults collected; open circle = more than 5 adults collected." figureDoi="http://doi.org/10.5281/zenodo.5225422" httpUri="https://zenodo.org/record/5225422/files/figure.png" pageId="3" pageNumber="47">6B</figureCitation>
)
</paragraph>
<paragraph id="8BD936994F2CFFFA68A81C6DFD2DFE7D" blockId="3.[151,709,1612,1637]" box="[151,709,1612,1637]" pageId="3" pageNumber="47">
<taxonomicName id="4C664D1A4F2CFFFA68A81C6DFEA7FE7C" box="[151,335,1612,1637]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="undefined-1">
<emphasis id="B912EA8B4F2CFFFA68A81C6DFEFFFE7D" box="[151,279,1612,1636]" italics="true" pageId="3" pageNumber="47">Rhyacophila</emphasis>
sp. 1
</taxonomicName>
:
<bibRefCitation id="EFF74B684F2CFFFA69641C6DFDF5FE7C" author="Kuhara, N. &amp; Ito, T." box="[347,541,1612,1637]" pageId="3" pageNumber="47" pagination="11 - 20" refId="ref9051" refString="Kuhara, N. &amp; Ito, T. (2017) Caddisflies (Trichoptera) of Yakushima, northern Ryukyus, southwestern Japan. Biology of Inland Waters, 31, 11 - 20. [in Japanese with English abstract]" type="journal article" year="2017">Kuhara &amp; Ito 2017</bibRefCitation>
, 16, Yakushima.
</paragraph>
</subSubSection>
<subSubSection id="C37C65124F2CFFFC68A81CB3FC28FBF4" lastPageId="5" lastPageNumber="49" pageId="3" pageNumber="47" type="diagnosis">
<paragraph id="8BD936994F2CFFFA68A81CB3FC81FFE8" blockId="3.[151,1437,1682,2033]" pageId="3" pageNumber="47">
<emphasis id="B912EA8B4F2CFFFA68A81CB3FEE2FEB5" bold="true" box="[151,266,1682,1708]" pageId="3" pageNumber="47">Diagnosis</emphasis>
. This new species belongs to the
<taxonomicName id="4C664D1A4F2CFFFA6ABF1CB2FCE9FEB4" authorityName="Ulmer" authorityYear="1951" box="[640,769,1683,1709]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="lieftincki">
<emphasis id="B912EA8B4F2CFFFA6ABF1CB2FCE9FEB4" box="[640,769,1683,1709]" italics="true" pageId="3" pageNumber="47">R. lieftincki</emphasis>
</taxonomicName>
Species Group, and the male is similar to those of
<taxonomicName id="4C664D1A4F2CFFFA6D061CB2FED8FEC8" authority="Schmid 1970" authorityName="Schmid" authorityYear="1970" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="kando">
<emphasis id="B912EA8B4F2CFFFA6D061CB2FAA2FEB5" box="[1337,1354,1683,1708]" italics="true" pageId="3" pageNumber="47">R</emphasis>
.
<emphasis id="B912EA8B4F2CFFFA6D671CB2FA74FEB4" box="[1368,1436,1683,1709]" italics="true" pageId="3" pageNumber="47">kando</emphasis>
<bibRefCitation id="EFF74B684F2CFFFA68A81C96FED8FEC8" author="Schmid, F." box="[151,304,1719,1745]" pageId="3" pageNumber="47" pagination="1 - 230" refId="ref9493" refString="Schmid, F. (1970) Le genre Rhyacophila et la famille des Rhyacophilidae (Trichoptera). Memoires de la Societe Entomologique du Canada, 66, 1 - 230, 52 pls. [in French] https: // doi. org / 10.4039 / entm 10266 fv" type="journal article" year="1970">Schmid 1970</bibRefCitation>
</taxonomicName>
, found in
<collectingCountry id="F37176094F2CFFFA699D1C96FE0DFEC8" box="[418,485,1719,1745]" name="Nepal" pageId="3" pageNumber="47">Nepal</collectingCountry>
and
<collectingCountry id="F37176094F2CFFFA6A221C96FD86FEC8" box="[541,622,1719,1745]" name="Bhutan" pageId="3" pageNumber="47">Bhutan</collectingCountry>
(
<bibRefCitation id="EFF74B684F2CFFFA6A421C96FCF0FEC8" author="Schmid, F." box="[637,792,1719,1745]" pageId="3" pageNumber="47" pagination="1 - 230" refId="ref9493" refString="Schmid, F. (1970) Le genre Rhyacophila et la famille des Rhyacophilidae (Trichoptera). Memoires de la Societe Entomologique du Canada, 66, 1 - 230, 52 pls. [in French] https: // doi. org / 10.4039 / entm 10266 fv" type="journal article" year="1970">Schmid 1970</bibRefCitation>
;
<bibRefCitation id="EFF74B684F2CFFFA6B1B1C96FC58FEC8" author="Morse, J. C." box="[804,944,1719,1745]" pageId="3" pageNumber="47" refId="ref9313" refString="Morse, J. C. (Ed.) (2021) Trichoptera World Checklist. Available from: http: // entweb. clemson. edu / database / trichopt / index. htm (accessed 31 March 2021)." type="url" year="2021">Morse 2021</bibRefCitation>
),
<taxonomicName id="4C664D1A4F2CFFFA6BFB1C96FAD9FEC8" authority="Sun &amp; Yang 1998" authorityName="Sun &amp; Yang" authorityYear="1998" box="[964,1329,1719,1745]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="claviforma">
<emphasis id="B912EA8B4F2CFFFA6BFB1C96FBB5FEC8" box="[964,1117,1719,1745]" italics="true" pageId="3" pageNumber="47">R. claviforma</emphasis>
<bibRefCitation id="EFF74B684F2CFFFA6C5A1C96FAD9FEC8" author="Sun, C. &amp; Yang, L." box="[1125,1329,1719,1745]" pageId="3" pageNumber="47" pagination="15 - 17" refId="ref9545" refString="Sun, C. &amp; Yang, L. (1998) Studies on the genus Rhyacophila of China. Braueria, 25, 15 - 17." type="journal article" year="1998">Sun &amp; Yang 1998</bibRefCitation>
</taxonomicName>
, found in eastern and southwestern
<collectingCountry id="F37176094F2CFFFA69831CFAFE17FEEC" box="[444,511,1755,1781]" name="China" pageId="3" pageNumber="47">China</collectingCountry>
(
<bibRefCitation id="EFF74B684F2CFFFA6A301CFAFD08FEEC" author="Sun, C. &amp; Yang, L." box="[527,736,1755,1781]" pageId="3" pageNumber="47" pagination="15 - 17" refId="ref9545" refString="Sun, C. &amp; Yang, L. (1998) Studies on the genus Rhyacophila of China. Braueria, 25, 15 - 17." type="journal article" year="1998">Sun &amp; Yang 1998</bibRefCitation>
), and
<taxonomicName id="4C664D1A4F2CFFFA6B181CFAFBADFEEC" authority="Martynov 1914" authorityName="Martynov" authorityYear="1914" box="[807,1093,1755,1781]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="impar">
<emphasis id="B912EA8B4F2CFFFA6B181CFAFCD0FEED" box="[807,824,1755,1780]" italics="true" pageId="3" pageNumber="47">R</emphasis>
.
<emphasis id="B912EA8B4F2CFFFA6B781CFAFC62FEED" box="[839,906,1755,1780]" italics="true" pageId="3" pageNumber="47">impar</emphasis>
<bibRefCitation id="EFF74B684F2CFFFA6BAC1CFAFBADFEEC" author="Martynov, A. V." box="[915,1093,1755,1781]" pageId="3" pageNumber="47" pagination="74 - 84" refId="ref9275" refString="Martynov, A. V. (1914) Notes on the Trichoptera collected by the Prof. P. Sushkin's expedition to the Altai during 1912. Revue Russe d'Entomologie, 14, 74 - 84." type="journal article" year="1914">Martynov 1914</bibRefCitation>
</taxonomicName>
, found in
<collectingCountry id="F37176094F2CFFFA6C861CFAFB11FEEC" box="[1209,1273,1755,1781]" name="Japan" pageId="3" pageNumber="47">Japan</collectingCountry>
(Honshu) and
<collectingCountry id="F37176094F2CFFFA68A81CDEFF0AFF00" box="[151,226,1791,1817]" name="Russia" pageId="3" pageNumber="47">Russia</collectingCountry>
(Siberia, Far East) (
<bibRefCitation id="EFF74B684F2CFFFA69F61CDEFDB5FF00" author="Hattori, T." box="[457,605,1790,1817]" pageId="3" pageNumber="47" pagination="414 - 437" refId="ref8732" refString="Hattori, T. (2005) Rhyacophilidae. In: Kawai, T. &amp; Tanida, K. (Eds.), Aquatic Insects of Japan: Manual with Keys and Illustrations. Tokai University Press, Kanagawa, pp. 414 - 437. [in Japanese]" type="book chapter" year="2005">Hattori 2005</bibRefCitation>
;
<bibRefCitation id="EFF74B684F2CFFFA6A551CDEFD13FF00" author="Ivanov, V. D." box="[618,763,1791,1817]" pageId="3" pageNumber="47" pagination="171 - 209" refId="ref8868" refString="Ivanov, V. D. (2011) Caddisflies of Russia: Fauna and biodiversity. Zoosymposia, 5, 171 - 209. https: // doi. org / 10.11646 / zoosymposia. 5.1.15" type="journal article" year="2011">Ivanov 2011</bibRefCitation>
), in having a long triangular segment IX in lateral view, an ax-shaped segment X and a sock-like apical segment of each inferior appendage. However, the male of this new species is distinct from the three similar species in the combination of the following characteristics: Segment IX is triangular in dorsal view; apical parts of segment X are strongly broadened with irregularly serrated caudal margin and pair of lateral plates; and parameres are circular-saw-like apically. The female of
<taxonomicName id="4C664D1A4F2CFFFA6C631DAEFB35FFB0" authorityName="Ito" authorityYear="2021" box="[1116,1245,1935,1961]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="arakawa">
<emphasis id="B912EA8B4F2CFFFA6C631DAEFB35FFB0" box="[1116,1245,1935,1961]" italics="true" pageId="3" pageNumber="47">R. arakawa</emphasis>
</taxonomicName>
is similar to that of
<taxonomicName id="4C664D1A4F2CFFFA68891D92FEF0FFD5" authorityName="Martynov" authorityYear="1914" box="[182,280,1971,1996]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="impar">
<emphasis id="B912EA8B4F2CFFFA68891D92FEF0FFD5" box="[182,280,1971,1996]" italics="true" pageId="3" pageNumber="47">R. impar</emphasis>
</taxonomicName>
(
<bibRefCitation id="EFF74B684F2CFFFA69191D92FE28FFD4" author="Arefina, T. I." box="[294,448,1971,1997]" pageId="3" pageNumber="47" pagination="21 - 44" refId="ref8660" refString="Arefina, T. I. (2001) An outline of females of the genus Rhyacophila (Trichoptera: Rhyacophilidae) from eastern Asia. In: Bae, Y. J. (Ed.), The 21 th Century and Aquatic Entomology in East Asia. Proceedings of 1 st Symposium of AESEA. Korean Society of Aquatic Entomology, Seoul, pp. 21 - 44." type="book chapter" year="2001">Arefina 2001</bibRefCitation>
;
<bibRefCitation id="EFF74B684F2CFFFA69F31D92FDB4FFD4" author="Hattori, T." box="[460,604,1970,1997]" pageId="3" pageNumber="47" pagination="414 - 437" refId="ref8732" refString="Hattori, T. (2005) Rhyacophilidae. In: Kawai, T. &amp; Tanida, K. (Eds.), Aquatic Insects of Japan: Manual with Keys and Illustrations. Tokai University Press, Kanagawa, pp. 414 - 437. [in Japanese]" type="book chapter" year="2005">Hattori 2005</bibRefCitation>
) but is distinguished by the ratio of length to basal width of segment VIII, which is about
<quantity id="4C9E9B7C4F2CFFFA697D1DF6FE6AFFE8" box="[322,386,2007,2033]" metricMagnitude="-2" metricUnit="m" metricValue="3.302" pageId="3" pageNumber="47" unit="in" value="1.3">1.3 in</quantity>
<taxonomicName id="4C664D1A4F2CFFFA69B71DF6FDE1FFE8" authorityName="Ito" authorityYear="2021" box="[392,521,2007,2033]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="arakawa">
<emphasis id="B912EA8B4F2CFFFA69B71DF6FDE1FFE8" box="[392,521,2007,2033]" italics="true" pageId="3" pageNumber="47">R. arakawa</emphasis>
</taxonomicName>
but lower than 1.0 in
<taxonomicName id="4C664D1A4F2CFFFA6B3F1DF6FC8AFFE9" authorityName="Martynov" authorityYear="1914" box="[768,866,2007,2032]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="3" pageNumber="47" phylum="Arthropoda" rank="species" species="impar">
<emphasis id="B912EA8B4F2CFFFA6B3F1DF6FC8AFFE9" box="[768,866,2007,2032]" italics="true" pageId="3" pageNumber="47">R. impar</emphasis>
</taxonomicName>
.
</paragraph>
<caption id="DF1966114F2BFFFD68A81CC0FE33FFC8" ID-DOI="http://doi.org/10.5281/zenodo.5225408" ID-Zenodo-Dep="5225408" httpUri="https://zenodo.org/record/5225408/files/figure.png" pageId="4" pageNumber="48" startId="4.[151,250,1761,1785]" targetBox="[188,1416,185,1724]" targetPageId="4">
<paragraph id="8BD936994F2BFFFD68A81CC0FE33FFC8" blockId="4.[151,1437,1761,2001]" pageId="4" pageNumber="48">
<emphasis id="B912EA8B4F2BFFFD68A81CC0FEE5FEE0" bold="true" box="[151,269,1761,1785]" pageId="4" pageNumber="48">FIGURE 3</emphasis>
.
<taxonomicName id="4C664D1A4F2BFFFD69261CC0FE10FEE0" authority="Ito, 2021" authorityName="Ito" authorityYear="2021" box="[281,504,1761,1785]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="4" pageNumber="48" phylum="Arthropoda" rank="species" species="arakawa" status="sp. nov.">
<emphasis id="B912EA8B4F2BFFFD69261CC0FE10FEE0" box="[281,504,1761,1785]" italics="true" pageId="4" pageNumber="48">Rhyacophila arakawa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22157F04F2BFFFD69C11CC3FDA7FEE0" box="[510,591,1762,1786]" pageId="4" pageNumber="48" rank="species">
<emphasis id="B912EA8B4F2BFFFD69C11CC3FDA1FEE3" bold="true" box="[510,585,1762,1786]" pageId="4" pageNumber="48">sp. nov</emphasis>
.
</taxonomicNameLabel>
3A3D, male: 3A, genitalia, left lateral with enlarged figure of apex of a paramere; 3B, same, dorsal; 3C, apical part of segment X, left ventrolateral; 3D, right inferior appendage, dorsomesal, with enlarged figure of mesal spinules. 3E3I, female: 3E, abdominal segments VIIIXI, left lateral; 3F, segment VIII, dorsal; 3G, same, ventral; 3H, vaginal apparatus, left lateral; 3I, same, ventral. Abbreviations: VIIIXI = abdominal segments VIIIXI; a inf app = apical segment of inferior appendage (paired); ae = aedeagus; ap ba = apical band; b inf app = basal segment of inferior appendage (paired); la pl= lateral plate (paired); pa = paramere (paired); ph = phallotheca; pp = posterior process; ps = processus spermathecae; t b = tergal band.
</paragraph>
</caption>
<paragraph id="8BD936994F2AFFFC68F81AB7FDEDF9B4" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81AB7FEE3F8A9" bold="true" box="[199,267,150,176]" pageId="5" pageNumber="49">Adult</emphasis>
. Lengths of forewings and hind wings: Each forewing
<quantity id="4C9E9B7C4F2AFFFC6B4F1AB6FBECF8A8" box="[880,1028,151,177]" metricMagnitude="-3" metricUnit="m" metricValue="9.35" metricValueMax="10.3" metricValueMin="8.4" pageId="5" pageNumber="49" unit="mm" value="9.35" valueMax="10.3" valueMin="8.4">8.410.3 mm</quantity>
long (mean
<quantity id="4C9E9B7C4F2AFFFC6CB01AB6FB0FF8A8" box="[1167,1255,151,177]" metricMagnitude="-3" metricUnit="m" metricValue="9.6" pageId="5" pageNumber="49" unit="mm" value="9.6">9.6 mm</quantity>
, n = 7) and each hind wing 7.19.0 mm (mean
<quantity id="4C9E9B7C4F2AFFFC69DC1A9AFDD2F8CC" box="[483,570,187,213]" metricMagnitude="-3" metricUnit="m" metricValue="8.1" pageId="5" pageNumber="49" unit="mm" value="8.1">8.1 mm</quantity>
, n = 7) in males,
<quantity id="4C9E9B7C4F2AFFFC6ACA1A9AFC7EF8CC" box="[757,918,187,213]" metricMagnitude="-2" metricUnit="m" metricValue="1.08" metricValueMax="1.09" metricValueMin="1.0699999999999998" pageId="5" pageNumber="49" unit="mm" value="10.8" valueMax="10.9" valueMin="10.7">10.710.9 mm</quantity>
(mean
<quantity id="4C9E9B7C4F2AFFFC6BD81A9AFBA4F8CC" box="[999,1100,187,213]" metricMagnitude="-2" metricUnit="m" metricValue="1.08" pageId="5" pageNumber="49" unit="mm" value="10.8">10.8 mm</quantity>
, n = 2) and
<quantity id="4C9E9B7C4F2AFFFC6CF41A9AFAB9F8CC" box="[1227,1361,187,213]" metricMagnitude="-3" metricUnit="m" metricValue="8.9" metricValueMax="9.4" metricValueMin="8.4" pageId="5" pageNumber="49" unit="mm" value="8.9" valueMax="9.4" valueMin="8.4">8.49.4 mm</quantity>
(mean
<quantity id="4C9E9B7C4F2AFFFC68A81AFEFF18F8E0" box="[151,240,223,249]" metricMagnitude="-3" metricUnit="m" metricValue="8.9" pageId="5" pageNumber="49" unit="mm" value="8.9">8.9 mm</quantity>
, n = 2) in females, respectively. Head brown, warts light brown with brown setae; antennae brown, scapes thicker and longer than other apical segments; palpi brown to light brown. Thorax brown dorsally. Legs brown, spurs dark brown. Wings brown with darker veins and whitish pterostigmas, light-colored dots scattered on apical 1/3 of forewings. Abdomen with brown tergites and sternites, darker pigments scattered dorsally; small mid-ventral process on sternite VII (or VI and VII) in male and on sternite VI in female, process on sternite VI of male often very small or completely absent.
</paragraph>
<paragraph id="8BD936994F2AFFFC68F81B96FEBDFA9F" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81B96FE99F9C9" bold="true" box="[199,369,438,465]" pageId="5" pageNumber="49">Male genitalia</emphasis>
(
<figureCitation id="135D2A1C4F2AFFFC69401B96FDE1F9C8" box="[383,521,439,465]" captionStart="FIGURE 3" captionStartId="4.[151,250,1761,1785]" captionTargetBox="[188,1416,185,1724]" captionTargetId="figure-16@4.[151,1436,181,1737]" captionTargetPageId="4" captionText="FIGURE 3. Rhyacophila arakawa sp. nov. 3A3D, male: 3A, genitalia, left lateral with enlarged figure of apex of a paramere; 3B, same, dorsal; 3C, apical part of segment X, left ventrolateral; 3D, right inferior appendage, dorsomesal, with enlarged figure of mesal spinules. 3E3I, female: 3E, abdominal segments VIIIXI, left lateral; 3F, segment VIII, dorsal; 3G, same, ventral; 3H, vaginal apparatus, left lateral; 3I, same, ventral. Abbreviations: VIIIXI = abdominal segments VIIIXI; a inf app = apical segment of inferior appendage (paired); ae = aedeagus; ap ba = apical band; b inf app = basal segment of inferior appendage (paired); la pl= lateral plate (paired); pa = paramere (paired); ph = phallotheca; pp = posterior process; ps = processus spermathecae; t b = tergal band." figureDoi="http://doi.org/10.5281/zenodo.5225408" httpUri="https://zenodo.org/record/5225408/files/figure.png" pageId="5" pageNumber="49">Figs 3A3D</figureCitation>
). Segment IX (IX) in lateral view subtriangular with dorsum about 5 times as long as venter, in dorsal view subquadrate at basal 1/3, long and triangular at apical 2/3. Segment X (X) arising from mesal base of segment IX, in lateral view ax-shaped with long stem, irregularly serrate caudal margins and pair of thin semicircular lateral plates (la pl) apicoventrally. Apical band (ap ba) slightly sclerotized, round in lateral view, U-shaped in ventral and caudal views. Anal sclerites lacking. Tergal band (t b) long, connected to apical band and phallotheca (ph).
</paragraph>
<paragraph id="8BD936994F2AFFFC68F818AEFCA3FAD4" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">Phallotheca large roundish. Aedeagus (ae) slender, curved dorsoposterad subapically. Parameres (pa) long barlike, posterior 1/10 compressed, circular-saw-shaped apically.</paragraph>
<paragraph id="8BD936994F2AFFFC68F818F6FACDFB20" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">Inferior appendages large. Basal segments (b inf app) in lateral view rectangular, length 1.5 times as long as basal width, dorsal, ventral and caudal margins shallowly concave; apical segment (a inf app) in lateral view subquadrate with enlarged ventro-caudal corner, in dorso-mesal view subtriangular, with numerous spinules mesally.</paragraph>
<paragraph id="8BD936994F2AFFFC68F81962FC28FBF4" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81962FE66FB45" bold="true" box="[199,398,834,861]" pageId="5" pageNumber="49">Female genitalia</emphasis>
(
<figureCitation id="135D2A1C4F2AFFFC69A21962FDF6FB44" box="[413,542,835,861]" captionStart="FIGURE 3" captionStartId="4.[151,250,1761,1785]" captionTargetBox="[188,1416,185,1724]" captionTargetId="figure-16@4.[151,1436,181,1737]" captionTargetPageId="4" captionText="FIGURE 3. Rhyacophila arakawa sp. nov. 3A3D, male: 3A, genitalia, left lateral with enlarged figure of apex of a paramere; 3B, same, dorsal; 3C, apical part of segment X, left ventrolateral; 3D, right inferior appendage, dorsomesal, with enlarged figure of mesal spinules. 3E3I, female: 3E, abdominal segments VIIIXI, left lateral; 3F, segment VIII, dorsal; 3G, same, ventral; 3H, vaginal apparatus, left lateral; 3I, same, ventral. Abbreviations: VIIIXI = abdominal segments VIIIXI; a inf app = apical segment of inferior appendage (paired); ae = aedeagus; ap ba = apical band; b inf app = basal segment of inferior appendage (paired); la pl= lateral plate (paired); pa = paramere (paired); ph = phallotheca; pp = posterior process; ps = processus spermathecae; t b = tergal band." figureDoi="http://doi.org/10.5281/zenodo.5225408" httpUri="https://zenodo.org/record/5225408/files/figure.png" pageId="5" pageNumber="49">Figs 3E3I</figureCitation>
). Segment VIII (VIII) large, length 1.3 times as long as basal width, gradually narrowing posteriorly in lateral, dorsal, and ventral views; posterior margin with deep, wide, U-shaped incision dorsally and shallow incision ventrally. Vaginal apparatus slender; processus spermathecae (ps) very weakly sclerotized basically, round in ventral view, directed dorsocaudad in lateral view; posterior process (pp) membranous, subacute apically in ventral view and with thickened end in lateral view.
</paragraph>
</subSubSection>
<subSubSection id="C37C65124F2AFFFC68F819D6FF13FCF3" pageId="5" pageNumber="49" type="materials_examined">
<paragraph id="8BD936994F2AFFFC68F819D6FD08FC2C" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<materialsCitation id="3B0E3CC44F2AFFFC68F819D6FD08FC2C" collectingDate="2007-10-16" collectionCode="TI" country="Japan" county="Seiryu-bashi" elevation="1030" location="Male" municipality="Ara-kawa" pageId="5" pageNumber="49" specimenCode="CBM-ZI 0159997" specimenCount="1" typeStatus="holotype">
<emphasis id="B912EA8B4F2AFFFC68F819D6FEDCFC08" bold="true" box="[199,308,1015,1041]" pageId="5" pageNumber="49">
<typeStatus id="54DD883B4F2AFFFC68F819D6FEDCFC08" box="[199,308,1015,1041]" pageId="5" pageNumber="49" type="holotype">Holotype</typeStatus>
</emphasis>
.
<location id="8EB960424F2AFFFC697A19D6FE69FC08" LSID="urn:lsid:plazi:treatment:03CF878F4F2CFFFC68A81FC2FD47FD84:8EB960424F2AFFFC697A19D6FE69FC08" box="[325,385,1015,1041]" country="Japan" county="Seiryu-bashi" municipality="Ara-kawa" name="Male" pageId="5" pageNumber="49">Male</location>
,
<emphasis id="B912EA8B4F2AFFFC69B019D6FE30FC08" bold="true" box="[399,472,1015,1041]" pageId="5" pageNumber="49">
<collectingCountry id="F37176094F2AFFFC69B019D6FE30FC08" box="[399,472,1015,1041]" name="Japan" pageId="5" pageNumber="49">Japan</collectingCountry>
</emphasis>
,
<emphasis id="B912EA8B4F2AFFFC69D619D7FD2CFC08" bold="true" box="[489,708,1014,1041]" pageId="5" pageNumber="49">
<location id="8EB960424F2AFFFC69D619D7FD2CFC08" LSID="urn:lsid:plazi:treatment:03CF878F4F2CFFFC68A81FC2FD47FD84:8EB960424F2AFFFC69D619D7FD2CFC08" box="[489,708,1014,1041]" country="Japan" county="Seiryu-bashi" municipality="Ara-kawa" name="Yakushima Island" pageId="5" pageNumber="49">Yakushima Island</location>
</emphasis>
,
<location id="8EB960424F2AFFFC6AEC19D6FC90FC08" LSID="urn:lsid:plazi:treatment:03CF878F4F2CFFFC68A81FC2FD47FD84:8EB960424F2AFFFC6AEC19D6FC90FC08" box="[723,888,1015,1041]" country="Japan" county="Seiryu-bashi" municipality="Ara-kawa" name="Yakusugi-land" pageId="5" pageNumber="49">Yakusugi-land</location>
,
<collectingMunicipality id="6BBDACE34F2AFFFC6BBA19D6FC1EFC08" box="[901,1014,1015,1041]" pageId="5" pageNumber="49">Ara-kawa</collectingMunicipality>
,
<collectingCounty id="62B84E154F2AFFFC6C3B19D6FB7AFC08" box="[1028,1170,1015,1041]" pageId="5" pageNumber="49">Seiryu-bashi</collectingCounty>
(30.304˚N, 130.569˚E,
<elevation id="004BD1AA4F2AFFFC68A81E3AFEC0FC2F" box="[151,296,1051,1078]" metricMagnitude="3" metricUnit="m" metricValue="1.03" pageId="5" pageNumber="49" unit="m" value="1030.0">
<quantity id="4C9E9B7C4F2AFFFC68A81E3AFF04FC2C" box="[151,236,1051,1077]" metricMagnitude="3" metricUnit="m" metricValue="1.03" pageId="5" pageNumber="49" unit="m" value="1030.0">1030 m</quantity>
a.s.l.
</elevation>
),
<date id="FFD810594F2AFFFC69011E3AFE58FC2C" box="[318,432,1051,1077]" pageId="5" pageNumber="49" value="2007-10-16">
<collectingDate id="EF9CE9B14F2AFFFC69011E3AFE58FC2C" box="[318,432,1051,1077]" pageId="5" pageNumber="49" value="2007-10-16">16.x.2007</collectingDate>
</date>
,
<collectionCode id="ED77AE5C4F2AFFFC69831E3AFE31FC2C" box="[444,473,1051,1077]" country="Japan" name="Herbarium of the Department of Botany, University of Tokyo" pageId="5" pageNumber="49">TI</collectionCode>
, S (
<specimenCode id="DBC09EE24F2AFFFC6A3D1E3AFD3CFC2C" box="[514,724,1050,1077]" collectionCode="CBM-ZI" pageId="5" pageNumber="49">CBM-ZI 0159997</specimenCode>
).
</materialsCitation>
</paragraph>
<paragraph id="8BD936994F2AFFFC68F81E1EFAB0FCB8" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<materialsCitation id="3B0E3CC44F2AFFFC68F81E1EFD46FC40" box="[199,686,1086,1113]" collectionCode="SPMN-IS" location="Yakushima Island" pageId="5" pageNumber="49" specimenCount="1" typeStatus="paratype">
<emphasis id="B912EA8B4F2AFFFC68F81E1EFED7FC40" bold="true" box="[199,319,1087,1113]" pageId="5" pageNumber="49">
<typeStatus id="54DD883B4F2AFFFC68F81E1EFED7FC40" box="[199,319,1087,1113]" pageId="5" pageNumber="49" type="paratype">Paratypes</typeStatus>
</emphasis>
(
<collectionCode id="ED77AE5C4F2AFFFC69711E1EFE2BFC40" box="[334,451,1087,1113]" pageId="5" pageNumber="49">SPMN-IS</collectionCode>
).
<emphasis id="B912EA8B4F2AFFFC69EA1E1FFD46FC40" bold="true" box="[469,686,1086,1113]" pageId="5" pageNumber="49">
<location id="8EB960424F2AFFFC69EA1E1FFD46FC40" LSID="urn:lsid:plazi:treatment:03CF878F4F2CFFFC68A81FC2FD47FD84:8EB960424F2AFFFC69EA1E1FFD46FC40" box="[469,686,1086,1113]" name="Yakushima Island" pageId="5" pageNumber="49">Yakushima Island</location>
</emphasis>
</materialsCitation>
:
<materialsCitation id="3B0E3CC44F2AFFFC6A821E1EFB66FC40" box="[701,1166,1087,1113]" collectingDate="2007-10-16" collectionCode="TI" country="Japan" county="Seiryu-bashi" elevation="1030" location="Male" municipality="Ara-kawa" pageId="5" pageNumber="49" specimenCount="3" specimenCount-female="1" specimenCount-male="2" typeStatus="paratype">
<specimenCount id="9D60FD104F2AFFFC6A821E1EFCFEFC40" box="[701,790,1087,1113]" pageId="5" pageNumber="49" type="male">2 males</specimenCount>
,
<specimenCount id="9D60FD104F2AFFFC6B1D1E1EFC6FFC40" box="[802,903,1087,1113]" pageId="5" pageNumber="49" type="female">1 female</specimenCount>
, same data as holotype
</materialsCitation>
;
<materialsCitation id="3B0E3CC44F2AFFFC6CA51E1EFDC4FC64" collectingDate="2007-10-16" collectionCode="TI" country="Japan" pageId="5" pageNumber="49" specimenCount="1" specimenCount-male="1" typeStatus="paratype">
<specimenCount id="9D60FD104F2AFFFC6CA51E1EFB00FC40" box="[1178,1256,1087,1113]" pageId="5" pageNumber="49" type="male">1 male</specimenCount>
, Yakusugi-land, Ara-kawa, a tributary,
<date id="FFD810594F2AFFFC69AD1E42FDECFC64" box="[402,516,1123,1149]" pageId="5" pageNumber="49" value="2007-10-16">
<collectingDate id="EF9CE9B14F2AFFFC69AD1E42FDECFC64" box="[402,516,1123,1149]" pageId="5" pageNumber="49" value="2007-10-16">16.x.2007</collectingDate>
</date>
,
<collectionCode id="ED77AE5C4F2AFFFC6A301E42FDC4FC64" box="[527,556,1123,1149]" country="Japan" name="Herbarium of the Department of Botany, University of Tokyo" pageId="5" pageNumber="49">TI</collectionCode>
</materialsCitation>
, S;
<materialsCitation id="3B0E3CC44F2AFFFC6A6A1E42FB57FC64" box="[597,1215,1122,1149]" collectingDate="2007-10-15" collectionCode="TI" country="Japan" pageId="5" pageNumber="49" specimenCount="1" specimenCount-male="1" typeStatus="paratype">
<specimenCount id="9D60FD104F2AFFFC6A6A1E42FD4AFC64" box="[597,674,1123,1149]" pageId="5" pageNumber="49" type="male">1 male</specimenCount>
, Miyanoura-gawa, Yukawa-bashi,
<date id="FFD810594F2AFFFC6C1A1E43FB70FC64" box="[1061,1176,1122,1149]" pageId="5" pageNumber="49" value="2007-10-15">
<collectingDate id="EF9CE9B14F2AFFFC6C1A1E43FB70FC64" box="[1061,1176,1122,1149]" pageId="5" pageNumber="49" value="2007-10-15">15.x.2007</collectingDate>
</date>
,
<collectionCode id="ED77AE5C4F2AFFFC6C9D1E42FB57FC64" box="[1186,1215,1123,1149]" country="Japan" name="Herbarium of the Department of Botany, University of Tokyo" pageId="5" pageNumber="49">TI</collectionCode>
</materialsCitation>
, P;
<materialsCitation id="3B0E3CC44F2AFFFC6CD71E42FD7EFCB8" collectingDate="2007-10-17" collectionCode="TI" country="Japan" pageId="5" pageNumber="49" specimenCount="1" specimenCount-female="1" typeStatus="paratype">
<specimenCount id="9D60FD104F2AFFFC6CD71E42FAA3FC64" box="[1256,1355,1123,1149]" pageId="5" pageNumber="49" type="female">1 female</specimenCount>
, Anborindo, Harumaki-rokugo-bashi,
<date id="FFD810594F2AFFFC69C41EA6FD86FCB8" box="[507,622,1159,1185]" pageId="5" pageNumber="49" value="2007-10-17">
<collectingDate id="EF9CE9B14F2AFFFC69C41EA6FD86FCB8" box="[507,622,1159,1185]" pageId="5" pageNumber="49" value="2007-10-17">17.x.2007</collectingDate>
</date>
,
<collectionCode id="ED77AE5C4F2AFFFC6A461EA6FD7EFCB8" box="[633,662,1159,1185]" country="Japan" name="Herbarium of the Department of Botany, University of Tokyo" pageId="5" pageNumber="49">TI</collectionCode>
</materialsCitation>
, S;
<specimenCount id="9D60FD104F2AFFFC6AFF1EA6FCF1FCB8" box="[704,793,1159,1185]" pageId="5" pageNumber="49" type="male">2 males</specimenCount>
, Onoaida, Onoaida-gyoko,
<date id="FFD810594F2AFFFC6C721EA6FB2DFCB8" box="[1101,1221,1159,1185]" pageId="5" pageNumber="49" value="2003-04-24">24.iv.2003</date>
, A. Ishizuka.
</paragraph>
<paragraph id="8BD936994F2AFFFC68F81E8BFF13FCF3" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81E8BFE66FCDD" bold="true" box="[199,398,1194,1220]" pageId="5" pageNumber="49">Other specimens</emphasis>
.
<emphasis id="B912EA8B4F2AFFFC69A21E8BFD9DFCDC" bold="true" box="[413,629,1194,1221]" pageId="5" pageNumber="49">Yakushima Island</emphasis>
:
<specimenCount id="9D60FD104F2AFFFC6ABB1E8AFD3AFCDC" box="[644,722,1195,1221]" pageId="5" pageNumber="49" type="male">1 male</specimenCount>
, near Yodogawa-goya, small stream,
<date id="FFD810594F2AFFFC6C491E8BFB18FCDC" box="[1142,1264,1194,1221]" pageId="5" pageNumber="49" value="2003-09-25">25.ix.2003</date>
, N. Kuhara (N. Kuhara).
</paragraph>
</subSubSection>
<subSubSection id="C37C65124F2AFFFC68F81ED3FEEDFD4F" pageId="5" pageNumber="49" type="distribution">
<paragraph id="8BD936994F2AFFFC68F81ED3FDADFD17" blockId="5.[151,1437,150,1437]" box="[199,581,1266,1294]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81ED3FEB1FD15" bold="true" box="[199,345,1266,1292]" pageId="5" pageNumber="49">Distribution</emphasis>
.
<collectingCountry id="F37176094F2AFFFC69581ED2FE4FFD14" box="[359,423,1267,1293]" name="Japan" pageId="5" pageNumber="49">Japan</collectingCountry>
(Yakushima).
</paragraph>
<paragraph id="8BD936994F2AFFFC68F81F37FEEDFD4F" blockId="5.[151,1437,150,1437]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81F37FECBFD29" bold="true" box="[199,291,1302,1328]" pageId="5" pageNumber="49">Habitat</emphasis>
. Adults of this species were collected beside streams with stony bottoms located at
<quantity id="4C9E9B7C4F2AFFFC6CF31F36FA89FD28" box="[1228,1377,1303,1329]" metricMagnitude="2" metricUnit="m" metricValue="6.6" metricValueMax="13.0" metricValueMin="0.2" pageId="5" pageNumber="49" unit="m" value="660.0" valueMax="1300.0" valueMin="20.0">20 to 1300 m</quantity>
a.s.l. (
<figureCitation id="135D2A1C4F2AFFFC689F1F1AFF10FD4F" box="[160,248,1339,1366]" captionStart="FIGURE 6" captionStartId="12.[151,250,1943,1967]" captionTargetBox="[232,1361,183,1919]" captionTargetId="figure-16@12.[225,1363,181,1919]" captionTargetPageId="12" captionText="FIGURE 6. Adult collection sites of seven species of Rhyacophila on Yakushima. Solid circle = 14 adults collected; open circle = more than 5 adults collected." figureDoi="http://doi.org/10.5281/zenodo.5225422" httpUri="https://zenodo.org/record/5225422/files/figure.png" pageId="5" pageNumber="49">Fig. 6B</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C37C65124F2AFFFC68F81F7EFD47FD84" pageId="5" pageNumber="49" type="etymology">
<paragraph id="8BD936994F2AFFFC68F81F7EFAC6FD60" blockId="5.[151,1437,150,1437]" box="[199,1326,1375,1401]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81F7EFEA0FD60" bold="true" box="[199,328,1375,1401]" pageId="5" pageNumber="49">Etymology</emphasis>
. The name “
<taxonomicName id="4C664D1A4F2AFFFC69E71F7EFDD2FD60" authorityName="Ito" authorityYear="2021" box="[472,570,1375,1401]" class="Insecta" family="Rhyacophilidae" genus="Rhyacophila" kingdom="Animalia" order="Trichoptera" pageId="5" pageNumber="49" phylum="Arthropoda" rank="species" species="arakawa">
<emphasis id="B912EA8B4F2AFFFC69E71F7EFDD2FD60" box="[472,570,1375,1401]" italics="true" pageId="5" pageNumber="49">arakawa</emphasis>
</taxonomicName>
” is a noun in apposition, coined from the name of the
<typeStatus id="54DD883B4F2AFFFC6CA21F7EFB25FD60" box="[1181,1229,1375,1401]" pageId="5" pageNumber="49">type</typeStatus>
locality.
</paragraph>
<paragraph id="8BD936994F2AFFFC68F81FA2FD47FD84" blockId="5.[151,1437,150,1437]" box="[199,687,1411,1437]" pageId="5" pageNumber="49">
<emphasis id="B912EA8B4F2AFFFC68F81FA2FE94FD84" bold="true" box="[199,380,1411,1437]" pageId="5" pageNumber="49">Japanese name</emphasis>
. Arakawa-nagare-tobikera.
</paragraph>
</subSubSection>
</treatment>
</document>