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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1072.71307" ID-GBIF-Dataset="796ae285-4013-427c-be7e-0c39efe251b3" ID-PMC="PMC8632875" ID-Pensoft-Pub="1313-2970-1072-185" ID-Pensoft-UUID="93D2C64D1D025A37BAA0D1367D030C2B" ID-PubMed="34899011" ID-ZooBank="99A66CB2FE4B466CB6791B0589A50DFC" ModsDocID="1313-2970-1072-185" checkinTime="1637727079460" checkinUser="pensoft" docAuthor="Potapov, Mikhail, Deharveng, Louis &amp; Janion-Scheepers, Charlene" docDate="2021" docId="06F19A81B54A58ED88365E6555B4317F" docLanguage="en" docName="ZooKeys 1072: 185-204" docOrigin="ZooKeys 1072" docPubDate="2021-11-23" docSource="http://dx.doi.org/10.3897/zookeys.1072.71307" docTitle="Bagnallella tenella Potapov &amp; Deharveng &amp; Janion-Scheepers 2021, comb. nov." docType="treatment" docVersion="5" id="93D2C64D1D025A37BAA0D1367D030C2B" lastPageNumber="185" masterDocId="93D2C64D1D025A37BAA0D1367D030C2B" masterDocTitle="Taxonomy of the Proisotoma complex. VI. Rediscovery of the genus Bagnallella Salmon, 1951 and epitoky in Bagnallella davidi (Barra, 2001), comb. nov. from South Africa" masterLastPageNumber="204" masterPageNumber="185" pageNumber="185" updateTime="1668151164259" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Taxonomy of the Proisotoma complex. VI. Rediscovery of the genus Bagnallella Salmon, 1951 and epitoky in Bagnallella davidi (Barra, 2001), comb. nov. from South Africa</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Potapov, Mikhail</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6111-3354</mods:nameIdentifier>
<mods:affiliation>Moscow State Pedagogical University, Kibalchicha str., 6, korp. 3, Moscow, 129278, Russia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Deharveng, Louis</mods:namePart>
<mods:affiliation>Institut de Systematique, Evolution, Biodiversite, ISYEB-UMR 7205 - CNRS, MNHN, UPMC, EPHE, Museum national d'Histoire naturelle, Sorbonne Universites, 45 rue Buffon, CP 50, F- 75005 Paris, France</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Janion-Scheepers, Charlene</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5942-7912</mods:nameIdentifier>
<mods:affiliation>University of Cape Town, Department of Biological Sciences, Rondebosch, 7701, Private Bag x 3, South Africa &amp; Iziko Museums of South Africa, Cape Town, 8000, South Africa</mods:affiliation>
<mods:nameIdentifier type="email">cjanion@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2021</mods:date>
<mods:detail type="pubDate">
<mods:number>2021-11-23</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>1072</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>185</mods:start>
<mods:end>204</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.1072.71307</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1072.71307</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-1072-185</mods:identifier>
<mods:identifier type="ZooBank">99A66CB2FE4B466CB6791B0589A50DFC</mods:identifier>
<mods:identifier type="Pensoft-UUID">93D2C64D1D025A37BAA0D1367D030C2B</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="190652267" LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F" httpUri="http://treatment.plazi.org/id/06F19A81B54A58ED88365E6555B4317F" lastPageNumber="185" pageId="0" pageNumber="185">
<subSubSection pageId="0" pageNumber="185" type="nomenclature">
<paragraph pageId="0" pageNumber="185">
<taxonomicName LSID="06F19A81-B54A-58ED-8836-5E6555B4317F" authority="(Reuter, 1895)" authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" baseAuthorityName="Reuter" baseAuthorityYear="1895" class="Collembola" genus="Bagnallella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Bagnallella tenella" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="tenella" status="comb. nov.">Bagnallella tenella (Reuter, 1895)</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="185">comb. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="description">
<paragraph pageId="0" pageNumber="185">
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">Figures 5-8</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="reference_group">
<paragraph pageId="0" pageNumber="185">
<taxonomicName authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" class="Collembola" family="Isotomidae" genus="Isotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Isotoma tenella" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="tenella" status="comb. nov.">Isotoma tenella</taxonomicName>
Reuter, 1895
</paragraph>
<paragraph pageId="0" pageNumber="185">
<taxonomicName authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" baseAuthorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" baseAuthorityYear="2021" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma tenella" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="tenella" status="comb. nov.">Proisotoma tenella</taxonomicName>
(Reuter, 1895)
</paragraph>
<paragraph pageId="0" pageNumber="185">
<taxonomicName authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma simplex" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="simplex" status="comb. nov.">Proisotoma simplex</taxonomicName>
Folsom, 1937
</paragraph>
<paragraph pageId="0" pageNumber="185">
<taxonomicName authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma alba" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="alba" status="comb. nov.">Proisotoma alba</taxonomicName>
Yosii, 1939
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="materials_examined">
<paragraph pageId="0" pageNumber="185">Material examined.</paragraph>
<paragraph pageId="0" pageNumber="185">
<materialsCitation collectingDate="2017-07-18" collectingMethod="litter trap" collectorName="O. Cowan" country="South Africa" latitude="-34.3425" location="Swellendam" longLatPrecision="6" longitude="20.3167" municipality="Haarwegskloof" specimenCount="1" stateProvince="Western Cape">
<collectingCountry name="South Africa">South Africa</collectingCountry>
,
<collectingRegion country="South Africa" name="Western Cape">Western Cape</collectingRegion>
,
<collectingMunicipality>Haarwegskloof</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F:A80CFA495F7C8800B1159D06748B09E4" country="South Africa" latitude="-34.3425" longLatPrecision="6" longitude="20.3167" municipality="Haarwegskloof" name="Swellendam" stateProvince="Western Cape">Swellendam</location>
,
<geoCoordinate degrees="34.3425" direction="south" orientation="latitude" precision="5" value="-34.3425">34.3425°S</geoCoordinate>
,
<geoCoordinate degrees="20.3167" direction="east" orientation="longitude" precision="5" value="20.3167">20.3167°E</geoCoordinate>
,
<collectingDate value="2017-07-18">18.vii.2017</collectingDate>
,
<collectingMethod>litter trap</collectingMethod>
(R17) with
<taxonomicName class="Magnoliopsida" family="Asteraceae" genus="Dicerothamnus" kingdom="Plantae" lsidName="Dicerothamnus rhinocerotis" order="Asterales" pageId="0" pageNumber="185" phylum="Tracheophyta" rank="species" species="rhinocerotis">
<emphasis italics="true" pageId="0" pageNumber="185">Dicerothamnus rhinocerotis</emphasis>
</taxonomicName>
litter,
<collectorName>O. Cowan</collectorName>
leg.
</materialsCitation>
;
<materialsCitation collectingDate="2017-07-18" collectingMethod="litter trap" collectorName="O. Cowan" country="South Africa" latitude="-34.3444" location="Swellendam" longLatPrecision="6" longitude="20.3225" municipality="Haarwegskloof" specimenCount="1" stateProvince="Western Cape">
<collectingMunicipality>Haarwegskloof</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F:896030B080C8A41583CD99B62BBC8E9C" country="South Africa" latitude="-34.3444" longLatPrecision="6" longitude="20.3225" municipality="Haarwegskloof" name="Swellendam" stateProvince="Western Cape">Swellendam</location>
,
<geoCoordinate degrees="34.3444" direction="south" orientation="latitude" precision="5" value="-34.3444">34.3444°S</geoCoordinate>
,
<geoCoordinate degrees="20.3225" direction="east" orientation="longitude" precision="5" value="20.3225">20.3225°E</geoCoordinate>
,
<collectingDate value="2017-07-18">18.vii.2017</collectingDate>
,
<collectingMethod>litter trap</collectingMethod>
(A17) with
<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Medicago" kingdom="Plantae" lsidName="Medicago sativa" order="Fabales" pageId="0" pageNumber="185" phylum="Tracheophyta" rank="species" species="sativa">
<emphasis italics="true" pageId="0" pageNumber="185">Medicago sativa</emphasis>
</taxonomicName>
litter,
<collectorName>O. Cowan</collectorName>
leg.
</materialsCitation>
;
<materialsCitation collectingDate="2013-04-24" collectorName="A. Liu" country="South Africa" latitude="-33.7311" location="Baviaanskloof" longLatPrecision="6" longitude="23.9655" specimenCount="1" stateProvince="Eastern Cape">
<collectingRegion country="South Africa" name="Eastern Cape">Eastern Cape</collectingRegion>
,
<location LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F:B71C404371BA03F3CD8C295A9C92B40F" country="South Africa" latitude="-33.7311" longLatPrecision="6" longitude="23.9655" name="Baviaanskloof" stateProvince="Eastern Cape">Baviaanskloof</location>
,
<geoCoordinate degrees="33.7311" direction="south" orientation="latitude" precision="5" value="-33.7311">33.7311°S</geoCoordinate>
,
<geoCoordinate degrees="23.9655" direction="east" orientation="longitude" precision="5" value="23.9655">23.9655°E</geoCoordinate>
,
<collectingDate value="2013-04-24">24.iv.2013</collectingDate>
, BAV_F_49,
<collectorName>A. Liu</collectorName>
leg.
</materialsCitation>
;
<materialsCitation collectingDate="2019-04-24" collectorName="Berlese-Tullgren, H. Badenhorst" country="South Africa" latitude="-30.0567" location="Bankfontein Farm" longLatPrecision="6" longitude="24.8942" specimenCount="1" stateProvince="Free State Province">
<collectingRegion country="South Africa" name="Free State">Free State Province</collectingRegion>
,
<location LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F:D493F3BE605B25133F2AF5A944F5AFF6" country="South Africa" latitude="-30.0567" longLatPrecision="6" longitude="24.8942" name="Bankfontein Farm" stateProvince="Free State Province">Bankfontein Farm</location>
,
<geoCoordinate degrees="30.0567" direction="south" orientation="latitude" precision="5" value="-30.0567">30.0567°S</geoCoordinate>
,
<geoCoordinate degrees="24.8942" direction="east" orientation="longitude" precision="5" value="24.8942">24.8942°E</geoCoordinate>
,
<collectingDate value="2019-04-24">24.iv.2019</collectingDate>
,
<collectorName>Berlese-Tullgren</collectorName>
, tree leaf litter,
<collectorName>H. Badenhorst</collectorName>
leg.
</materialsCitation>
</paragraph>
<caption doi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185" start="Figures 58" startId="F2">
<paragraph pageId="0" pageNumber="185">
<emphasis bold="true" pageId="0" pageNumber="185">Figures 5-8.</emphasis>
<taxonomicName authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" baseAuthorityName="Reuter" baseAuthorityYear="1895" class="Collembola" genus="Bagnallella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Bagnallella tenella" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="tenella">
<emphasis italics="true" pageId="0" pageNumber="185">Bagnallella tenella</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="185">5</emphasis>
chaetotaxy of posterior part of Abd. IV, Abd.V and VI
<emphasis bold="true" pageId="0" pageNumber="185">6</emphasis>
ocelli, PAO, and Ant. I
<emphasis bold="true" pageId="0" pageNumber="185">7</emphasis>
furca, lateral view
<emphasis bold="true" pageId="0" pageNumber="185">8</emphasis>
macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="185">
<collectingCountry name="Cuba">Cuba</collectingCountry>
,
<collectingRegion country="Cuba" name="Cienfuegos">Cienfuegos Province</collectingRegion>
, 1984, J. Banasco-Almenteros leg.
</paragraph>
<paragraph pageId="0" pageNumber="185">
<materialsCitation collectingDate="2017-04-04" collectorName="V. Makarov" country="Indonesia" latitude="-8.7411" location="Lombok Island" longLatPrecision="7" longitude="116.0011" municipality="Toko Nusa Sari" specimenCount="1">
<collectingCountry name="Indonesia">Indonesia</collectingCountry>
,
<location LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F:1D4B384C3747597828D062581ECA91FB" country="Indonesia" latitude="-8.7411" longLatPrecision="7" longitude="116.0011" municipality="Toko Nusa Sari" name="Lombok Island">Lombok Island</location>
, vic.
<collectingMunicipality>Toko Nusa Sari</collectingMunicipality>
, marine beech,
<geoCoordinate degrees="8.7411" direction="south" orientation="latitude" precision="5" value="-8.7411">8.7411° S</geoCoordinate>
,
<geoCoordinate degrees="116.0011" direction="east" orientation="longitude" precision="5" value="116.0011">116.0011° E</geoCoordinate>
,
<collectingDate value="2017-04-04">4.IV.2017</collectingDate>
,
<collectorName>V. Makarov</collectorName>
leg.
</materialsCitation>
</paragraph>
<paragraph pageId="0" pageNumber="185">
<materialsCitation collectingDate="2000-07-04" collectorName="M. Culik" country="Brazil" location="Arace" municipality="Domingos Martins" specimenCount="1" stateProvince="Espirito Santo">
<collectingCountry name="Brazil">Brazil</collectingCountry>
,
<collectingRegion country="Brazil" name="Espirito Santo">Espirito Santo</collectingRegion>
,
<collectingMunicipality>Domingos Martins</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:06F19A81B54A58ED88365E6555B4317F:A19CA0D227FAEAF55621F98BF536A47C" country="Brazil" municipality="Domingos Martins" name="Arace" stateProvince="Espirito Santo">Arace</location>
,
<collectingDate value="2000-07-04">4.VII.2000</collectingDate>
,
<collectorName>M. Culik</collectorName>
leg.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="diagnosis">
<paragraph pageId="0" pageNumber="185">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="185">Maxillary palp simple. Four prelabral chaetae. Dens slender, with ca 20-30 anterior chaetae. Mucro bidentate. Anterior side of manubrium with 3+3 chaetae. 33/22235 s and 11/111 ms on body. No ventral chaetae on Th.III.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="description">
<paragraph pageId="0" pageNumber="185">Description.</paragraph>
<paragraph pageId="0" pageNumber="185">
Colour grey of different intensity. Cuticle outwardly smooth. 8+8 ocelli, G and H smaller. PAO (Fig.
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">6</figureCitation>
) about half as long as width of Ant.I and 0.8-0.9 as long as Claw 3. Maxillary outer lobe with four sublobal hairs and simple maxillary palp. Labral formula as 4/554. Labium without guards e7, with three proximal and four basomedian chaetae. Ventral side of head with 4-5+4-5 postlabial chaetae. With several additional chaetae on Ant.I. Ant.I with three basal micro s-chaetae (
<emphasis italics="true" pageId="0" pageNumber="185">bms</emphasis>
), one dorsal large, Ant.II with three
<emphasis italics="true" pageId="0" pageNumber="185">bms</emphasis>
, Ant. III without
<emphasis italics="true" pageId="0" pageNumber="185">bms</emphasis>
. Thorax without ventral axial chaetae. Macrochaetae rather long, differentiated (11/3334), medial ones on Abd.V about as long as tergal midline. S-chaetae on tergites slightly shorter than ordinary chaetae. S-formula as 33/22235 (s), 11/111 (
<emphasis italics="true" pageId="0" pageNumber="185">ms</emphasis>
) (Figs
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">5</figureCitation>
,
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">8</figureCitation>
). S-chaetae subequal, on Abd.I-III in mid-tergal position. Micro s-chaetae on Abd.I-II in front of lateral s-chaetae, on Abd.III between medial and lateral s-chaetae (Fig.
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">8</figureCitation>
). Tibiotarsal tenent chaetae (1,1,1) often present, weakly clavate (see Discussion). Retinaculum with 4+4 teeth and 1-2 chaetae. Furca long. Anterior side of manubrium with 3+3 chaetae arranged in two lines (Fig.
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">7</figureCitation>
). Dens with more than 20 anterior chaetae, posterior side of dens with crenulation and 7-10 chaetae (Fig.
<figureCitation captionStart="Figures 58" captionStartId="F2" captionText="Figures 5 - 8. Bagnallella tenella 5 chaetotaxy of posterior part of Abd. IV, Abd. V and VI 6 ocelli, PAO, and Ant. I 7 furca, lateral view 8 macrochaetae and s and ms-chaetae on body. s = s-chaetae, ms = ms-chaetae." figureDoi="10.3897/zookeys.1072.71307.figures5-8" httpUri="https://binary.pensoft.net/fig/614139" pageId="0" pageNumber="185">7</figureCitation>
). Mucro bidentate. Ratio of manubrium: dens: mucro = 7-8: 9: 1.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="discussion">
<paragraph pageId="0" pageNumber="185">Discussion.</paragraph>
<paragraph pageId="0" pageNumber="185">
The species belongs to the genus
<taxonomicName authorityName="Salmon" authorityYear="1951" class="Collembola" genus="Bagnallella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Bagnallella" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="185">Bagnallella</emphasis>
</taxonomicName>
by having two last abdominal segments separated and three and five s-chaetae on Abd. IV and V. It shares 3+3 anterior chaetae on manubrium with
<taxonomicName class="Collembola" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="B. biseta" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="biseta">
<emphasis italics="true" pageId="0" pageNumber="185">B. biseta</emphasis>
</taxonomicName>
,
<taxonomicName class="Collembola" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="B. koepckei" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="koepckei">
<emphasis italics="true" pageId="0" pageNumber="185">B. koepckei</emphasis>
</taxonomicName>
, and
<taxonomicName class="Collembola" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="B. paronai" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="paronai">
<emphasis italics="true" pageId="0" pageNumber="185">B. paronai</emphasis>
</taxonomicName>
from South America from which it differs by fewer chaetae on dens.
</paragraph>
<paragraph pageId="0" pageNumber="185">
Number of posterior chaetae on dens, clavate tibiotarsal chaetae, and chaetae on retinaculum vary. We treat all this variation within one species, but further study is needed. The independence of
<taxonomicName authorityName="Folsom, JW" authorityYear="1932" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma nigromaculosa" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="nigromaculosa">
<emphasis italics="true" pageId="0" pageNumber="185">Proisotoma nigromaculosa</emphasis>
</taxonomicName>
(Hawaiian Islands) is doubtful.
</paragraph>
<paragraph pageId="0" pageNumber="185">
Although we have no material from Europe,
<bibRefCitation author="Stach, J" journalOrPublisher="Kongliga Vetenskaps-Akademiens Handlingar" pageId="0" pageNumber="185" refId="B39" refString="Stach, J, 1947. The apterygotan fauna of Poland in relation to the world-fauna of this group of insects. Family: Isotomidae. In: Polska Akademia Umiejetnosci, Acta Monographica Musei Historiae Naturalis, Krakow." title="The apterygotan fauna of Poland in relation to the world-fauna of this group of insects. Family: Isotomidae" volumeTitle="Polska Akademia Umiejetnosci, Acta Monographica Musei Historiae Naturalis, Krakow." year="1947">
<normalizedToken originalValue="Stachs">Stach's</normalizedToken>
(1947)
</bibRefCitation>
concept of
<taxonomicName lsidName="P. tenella" pageId="0" pageNumber="185" rank="species" species="tenella">
<emphasis italics="true" pageId="0" pageNumber="185">P. tenella</emphasis>
</taxonomicName>
based on the specimens from Poland is accepted by us (for details see Potapov 2001;
<bibRefCitation DOI="https://doi.org/10.1163/ej.9789004157705.i-265" author="Fjellberg, A" journalOrPublisher="Fauna Entomologica Scandinavica" pageId="0" pageNumber="185" pagination="1 - 264" refId="B15" refString="Fjellberg, A, 2007. The Collembola of Fennoscandia and Denmark. Part II: Entomobryomorpha and Symphypleona. Fauna Entomologica Scandinavica 42: 1 - 264, DOI: https://doi.org/10.1163/ej.9789004157705.i-265" title="The Collembola of Fennoscandia and Denmark. Part II: Entomobryomorpha and Symphypleona." url="https://doi.org/10.1163/ej.9789004157705.i-265" volume="42" year="2007">Fjellberg 2007</bibRefCitation>
). Our tropical material fits
<bibRefCitation author="Stach, J" journalOrPublisher="Kongliga Vetenskaps-Akademiens Handlingar" pageId="0" pageNumber="185" refId="B39" refString="Stach, J, 1947. The apterygotan fauna of Poland in relation to the world-fauna of this group of insects. Family: Isotomidae. In: Polska Akademia Umiejetnosci, Acta Monographica Musei Historiae Naturalis, Krakow." title="The apterygotan fauna of Poland in relation to the world-fauna of this group of insects. Family: Isotomidae" volumeTitle="Polska Akademia Umiejetnosci, Acta Monographica Musei Historiae Naturalis, Krakow." year="1947">
<normalizedToken originalValue="Stachs">Stach's</normalizedToken>
(1947)
</bibRefCitation>
descriptions.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="distribution">
<paragraph pageId="0" pageNumber="185">Distribution and ecology.</paragraph>
<paragraph pageId="0" pageNumber="185">Widely distributed cosmopolitan species. Common in tropics. In higher latitudes only in protected soils.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="185" type="description of bagnallella davidi and its forms in south africa">
<paragraph pageId="0" pageNumber="185">
Description of
<taxonomicName authorityName="Potapov &amp; Deharveng &amp; Janion-Scheepers" authorityYear="2021" baseAuthorityName="Barra" baseAuthorityYear="2001" class="Collembola" genus="Bagnallella" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Bagnallella davidi" order="Collembola" pageId="0" pageNumber="185" phylum="Arthropoda" rank="species" species="davidi">
<emphasis italics="true" pageId="0" pageNumber="185">Bagnallella davidi</emphasis>
</taxonomicName>
and its forms in South Africa
</paragraph>
</subSubSection>
</treatment>
</document>