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<document id="4ED77981D244CE4D1CB5D3D40C9BF206" ID-DOI="10.5281/zenodo.211139" ID-GBIF-Dataset="ad8544f5-b354-4890-8806-5fd38411b161" ID-ISSN="1175-5326" ID-Zenodo-Dep="211139" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460559066857" checkinUser="plazi" docAuthor="Mendes, Luis F." docDate="2012" docId="7C7D87957E51FFC969BD9B5EFAACFC09" docLanguage="en" docName="zt03573p032.pdf" docOrigin="Zootaxa 3573" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Lasiotheus nanus Escherich 1903" docType="treatment" docVersion="7" lastPageNumber="20" masterDocId="8044FFED7E50FFCB692A9D6EFFF9FFCE" masterDocTitle="Description of the male of Lasiotheus Paclt, 1963, its implication in Atelurinae supra-generic taxonomy and keys for the genera (Insecta: Zygentoma)" masterLastPageNumber="32" masterPageNumber="18" pageNumber="19" updateTime="1698319938537" updateUser="plazi">
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<mods:title id="3CC4520F3C18F09C4A86834ACD2DC042">Description of the male of Lasiotheus Paclt, 1963, its implication in Atelurinae supra-generic taxonomy and keys for the genera (Insecta: Zygentoma)</mods:title>
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<mods:namePart id="806B283B2266BA540395F125C645FB9B">Mendes, Luis F.</mods:namePart>
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<mods:date id="73C7C9A85D68E118E15F64417C78E472">2012</mods:date>
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<treatment id="7C7D87957E51FFC969BD9B5EFAACFC09" ID-DOI="http://doi.org/10.5281/zenodo.6176765" ID-GBIF-Taxon="119556455" ID-Zenodo-Dep="6176765" LSID="urn:lsid:plazi:treatment:7C7D87957E51FFC969BD9B5EFAACFC09" httpUri="http://treatment.plazi.org/id/7C7D87957E51FFC969BD9B5EFAACFC09" lastPageId="2" lastPageNumber="20" pageId="1" pageNumber="19">
<subSubSection id="BCCE65087E51FFCA69BD9B5EFEC3F9A5" pageId="1" pageNumber="19" type="nomenclature">
<paragraph id="F46B36837E51FFCA69BD9B5EFDB5F984" blockId="1.[151,588,1584,1643]" box="[151,588,1584,1610]" pageId="1" pageNumber="19">
<heading id="AF2381EF7E51FFCA69BD9B5EFDB5F984" bold="true" box="[151,588,1584,1610]" fontSize="11" level="1" pageId="1" pageNumber="19" reason="1">
<taxonomicName id="33D44D007E51FFCA69BD9B5EFDB5F984" authority="Escherich, 1903" authorityName="Escherich" authorityYear="1903" box="[151,588,1584,1610]" class="Insecta" family="Ateluridae" genus="Lasiotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="1" pageNumber="19" phylum="Arthropoda" rank="species" species="nanus">
<emphasis id="C6A0EA917E51FFCA69BD9B5EFDB5F984" bold="true" box="[151,588,1584,1610]" pageId="1" pageNumber="19">
<emphasis id="C6A0EA917E51FFCA69BD9B5EFE94F984" bold="true" box="[151,365,1584,1610]" italics="true" pageId="1" pageNumber="19">Lasiotheus nanus</emphasis>
(
<bibRefCitation id="90454B727E51FFCA68569B5EFDBDF984" author="Escherich" box="[380,580,1584,1610]" pageId="1" pageNumber="19" refString="Escherich, K. (1903) Beitrage zur Kenntnis der Thysanuren. I Reihe. Zoologischer Anzeiger, 26 (697), 345 - 366." type="journal article" year="1903">Escherich, 1903</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="F46B36837E51FFCA69BD9B3DFEC3F9A5" blockId="1.[151,588,1584,1643]" box="[151,314,1619,1643]" pageId="1" pageNumber="19">
(
<figureCitation id="6CEF2A067E51FFCA69B59B3DFF14F9A5" box="[159,237,1619,1643]" captionStart="FIGURE 1" captionStartId="1.[151,250,1380,1403]" captionTargetBox="[440,1148,383,1350]" captionTargetId="figure@1.[432,1155,375,1359]" captionTargetPageId="1" captionText="FIGURE 1. Lasiotheus nanus (Escherich, 1903), male. A) Base of antenna. B) Tergite X, ventral. C) Right coxites and stylus VIII and IX, and right paramere. D) Base of paracercus, dorsal view. Scales: 0.1 mm." httpUri="https://zenodo.org/record/211140/files/figure.png" pageId="1" pageNumber="19">Figs. 1</figureCitation>
, AD)
</paragraph>
</subSubSection>
<subSubSection id="BCCE65087E51FFCA69BD9BF5FAE2F8D1" pageId="1" pageNumber="19" type="materials_examined">
<paragraph id="F46B36837E51FFCA69BD9BF5FAE2F8D1" blockId="1.[151,1436,1691,2003]" pageId="1" pageNumber="19">
Material examined:
<collectingCountry id="8CC376137E51FFCA68559BF5FE37F97D" box="[383,462,1691,1715]" name="Gabon" pageId="1" pageNumber="19">Gabon</collectingCountry>
: Province of Ogooué-Ivindo, lodge in the vicinity of the Parc National de La Lopé, 0 6.08.2009, sandy slope at the Offoué River left bank,
<specimenCount id="E2D2FD0A7E51FFCA6BD19BD1FCBFF919" box="[763,838,1727,1751]" pageId="1" pageNumber="19" type="male">1 male</specimenCount>
(CZ-5749). Province of Moyen Ogooué, Lambarené, garden,
<date id="806A10437E51FFCA69DC9B8DFE8FF935" box="[246,374,1763,1787]" pageId="1" pageNumber="19" value="2009-08-13">13.08.2009</date>
, ca.
<quantity id="332C9B667E51FFCA68999B8DFE09F935" box="[435,496,1763,1787]" metricMagnitude="1" metricUnit="m" metricValue="3.0" pageId="1" pageNumber="19" unit="m" value="30.0">30 m</quantity>
from the Ogooué River right bank,
<specimenCount id="E2D2FD0A7E51FFCA6A8F9B8DFBF2F935" box="[933,1035,1763,1787]" pageId="1" pageNumber="19" type="female">1 female</specimenCount>
(CZ-5752). Province of Ngounié, Mouila, untreated garden not far from the Ngounié River right bank,
<date id="806A10437E51FFCA6AB69A69FBE4F8D1" box="[924,1053,1799,1823]" pageId="1" pageNumber="19" value="2009-08-16">16.08.2009</date>
,
<specimenCount id="E2D2FD0A7E51FFCA6D029A69FB6DF8D1" box="[1064,1172,1799,1823]" pageId="1" pageNumber="19" type="female">2 females</specimenCount>
(CZ-5755).
</paragraph>
</subSubSection>
<subSubSection id="BCCE65087E51FFC969ED9A42FAACFC09" lastPageId="2" lastPageNumber="20" pageId="1" pageNumber="19" type="description">
<paragraph id="F46B36837E51FFC969ED9A42FEFFFE49" blockId="1.[151,1436,1691,2003]" lastBlockId="2.[151,1436,151,968]" lastPageId="2" lastPageNumber="20" pageId="1" pageNumber="19">
<emphasis id="C6A0EA917E51FFCA69ED9A42FEF4F88A" bold="true" box="[199,269,1836,1860]" pageId="1" pageNumber="19">
<collectingCountry id="8CC376137E51FFCA69ED9A42FEF1F88A" box="[199,264,1836,1860]" name="Malta" pageId="1" pageNumber="19">Male</collectingCountry>
:
</emphasis>
Body length 2.4 mm, length and width of thorax 0.9 mm. Antennae and terminal filaments apically damaged though much shorter than body. The great majority of the morphological features agree well with those of females (
<bibRefCitation id="90454B727E51FFCA69D69A1DFBD5F845" author="Mendes" box="[252,1068,1907,1931]" pageId="1" pageNumber="19" refString="Mendes, L. F. (1986) Nova contribuicao para o conhecimento dos tisanuros africanos (Zygentoma: Lepismatidae e Ateluridae). Revue de Zoologie Africaine, 100 (2), 213 - 227." type="journal article" year="1986">Mendes, 1986 and recent material collected in Lambarené and in Mouila</bibRefCitation>
), viz. body shape, head and body chaetotaxy (scales,
<typeStatus id="2B6F88217E51FFCA685F9AF6FE5CF87E" box="[373,421,1944,1968]" pageId="1" pageNumber="19">type</typeStatus>
and distribution of macrochaetae and small setae), shape and proportions of mouthparts, shape of pretarsus and empodium morphology, number of abdominal stylets and number and shape of vesicles and pseudovesicles. However, the antennal pedicellus is modified, round, as long as wide, and with a clear fovea; like that of female, it lacks an apophysis (
<figureCitation id="6CEF2A067E52FFC96B769DD2FD59FF1A" box="[604,672,188,212]" captionStart="FIGURE 1" captionStartId="1.[151,250,1380,1403]" captionTargetBox="[440,1148,383,1350]" captionTargetId="figure@1.[432,1155,375,1359]" captionTargetPageId="1" captionText="FIGURE 1. Lasiotheus nanus (Escherich, 1903), male. A) Base of antenna. B) Tergite X, ventral. C) Right coxites and stylus VIII and IX, and right paramere. D) Base of paracercus, dorsal view. Scales: 0.1 mm." httpUri="https://zenodo.org/record/211140/files/figure.png" pageId="2" pageNumber="20">Fig. 1</figureCitation>
A); tergite X is similar to that of female in dorsal view, though somewhat deeper incised apically, but it shows three ventral, sub-equal, thin, cylindrical, sclerotized pegs on each side (
<figureCitation id="6CEF2A067E52FFC969FD9C6AFEE3FED2" box="[215,282,260,284]" captionStart="FIGURE 1" captionStartId="1.[151,250,1380,1403]" captionTargetBox="[440,1148,383,1350]" captionTargetId="figure@1.[432,1155,375,1359]" captionTargetPageId="1" captionText="FIGURE 1. Lasiotheus nanus (Escherich, 1903), male. A) Base of antenna. B) Tergite X, ventral. C) Right coxites and stylus VIII and IX, and right paramere. D) Base of paracercus, dorsal view. Scales: 0.1 mm." httpUri="https://zenodo.org/record/211140/files/figure.png" pageId="2" pageNumber="20">Fig. 1</figureCitation>
B); parameres are short and very wide, with dense and strong distal glandular setae (
<figureCitation id="6CEF2A067E52FFC96C2F9C6AFAB1FED2" box="[1285,1352,260,284]" captionStart="FIGURE 1" captionStartId="1.[151,250,1380,1403]" captionTargetBox="[440,1148,383,1350]" captionTargetId="figure@1.[432,1155,375,1359]" captionTargetPageId="1" captionText="FIGURE 1. Lasiotheus nanus (Escherich, 1903), male. A) Base of antenna. B) Tergite X, ventral. C) Right coxites and stylus VIII and IX, and right paramere. D) Base of paracercus, dorsal view. Scales: 0.1 mm." httpUri="https://zenodo.org/record/211140/files/figure.png" pageId="2" pageNumber="20">Fig. 1</figureCitation>
C); the median posterior coxite VIII is entire, more or less straight, not protruded (
<figureCitation id="6CEF2A067E52FFC96ACD9C49FBDEFEF1" box="[999,1063,295,319]" captionStart="FIGURE 1" captionStartId="1.[151,250,1380,1403]" captionTargetBox="[440,1148,383,1350]" captionTargetId="figure@1.[432,1155,375,1359]" captionTargetPageId="1" captionText="FIGURE 1. Lasiotheus nanus (Escherich, 1903), male. A) Base of antenna. B) Tergite X, ventral. C) Right coxites and stylus VIII and IX, and right paramere. D) Base of paracercus, dorsal view. Scales: 0.1 mm." httpUri="https://zenodo.org/record/211140/files/figure.png" pageId="2" pageNumber="20">Fig. 1</figureCitation>
C); and cerci are similar to those of female, but the dorsal basal divisions of the paracercus have a few long and thin, cylindrical, sclerotized pegs (
<figureCitation id="6CEF2A067E52FFC969B59C01FF26FE49" box="[159,223,367,391]" captionStart="FIGURE 1" captionStartId="1.[151,250,1380,1403]" captionTargetBox="[440,1148,383,1350]" captionTargetId="figure@1.[432,1155,375,1359]" captionTargetPageId="1" captionText="FIGURE 1. Lasiotheus nanus (Escherich, 1903), male. A) Base of antenna. B) Tergite X, ventral. C) Right coxites and stylus VIII and IX, and right paramere. D) Base of paracercus, dorsal view. Scales: 0.1 mm." httpUri="https://zenodo.org/record/211140/files/figure.png" pageId="2" pageNumber="20">Fig. 1</figureCitation>
D).
</paragraph>
<paragraph id="F46B36837E52FFC969ED9CFBFD9CFD3F" blockId="2.[151,1436,151,968]" pageId="2" pageNumber="20">
<taxonomicName id="33D44D007E52FFC969ED9CFBFEDEFE62" box="[199,295,405,428]" class="Insecta" family="Ateluridae" genus="Lasiotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="species" species="nanus">
<emphasis id="C6A0EA917E52FFC969ED9CFBFEDEFE62" box="[199,295,405,428]" italics="true" pageId="2" pageNumber="20">L. nanus</emphasis>
</taxonomicName>
is known to occur (probably due at least partly to human-introduced populations) in
<collectingCountry id="8CC376137E52FFC96DC89CFAFACFFE62" box="[1250,1334,404,428]" name="Guinea-Bissau" pageId="2" pageNumber="20">Guinea</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC96C6B9CFAFA61FE62" box="[1345,1432,404,428]" name="Nigeria" pageId="2" pageNumber="20">Nigeria</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC969BD9CD9FF15FE01" box="[151,236,439,463]" name="Angola" pageId="2" pageNumber="20">Angola</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC969D09CD9FE75FE01" box="[250,396,439,463]" name="South Africa" pageId="2" pageNumber="20">South Africa</collectingCountry>
(Kwazulu
<collectingCountry id="8CC376137E52FFC96B399CD9FDABFE01" box="[531,594,439,463]" name="South Africa" pageId="2" pageNumber="20">Natal</collectingCountry>
, Durban area), several African islands and archipelagos (
<collectingCountry id="8CC376137E52FFC96DCD9CD9FA89FE01" box="[1255,1392,439,463]" name="Cape Verde" pageId="2" pageNumber="20">Cape Verde</collectingCountry>
, St. Tomé and
<collectingCountry id="8CC376137E52FFC968319CB2FE82FE3A" box="[283,379,476,500]" name="Sao Tome and Principe" pageId="2" pageNumber="20">Príncipe</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC968A49CB2FE09FE3A" box="[398,496,476,500]" name="Réunion" pageId="2" pageNumber="20">Reunion</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC96B289CB2FD79FE3A" box="[514,640,476,500]" name="Saint Helena, Ascension and Tristan da Cunha" pageId="2" pageNumber="20">St. Helena</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC96BB89CB2FCF7FE3A" box="[658,782,476,500]" name="Seychelles" pageId="2" pageNumber="20">Seychelles</collectingCountry>
), as well as in
<collectingCountry id="8CC376137E52FFC96AFD9CB3FBF4FE3A" box="[983,1037,477,500]" name="Peru" pageId="2" pageNumber="20">Peru</collectingCountry>
,
<collectingCountry id="8CC376137E52FFC96D359CB2FB9FFE3A" box="[1055,1126,476,500]" name="Brazil" pageId="2" pageNumber="20">Brazil</collectingCountry>
, Hawaii,
<collectingCountry id="8CC376137E52FFC96DF59CB2FADCFE3A" box="[1247,1317,476,500]" name="China" pageId="2" pageNumber="20">China</collectingCountry>
, Sumatra, Melanesia (
<collectingCountry id="8CC376137E52FFC968339C91FE21FDD9" box="[281,472,511,535]" name="Solomon Islands" pageId="2" pageNumber="20">Solomon Islands</collectingCountry>
) and Polynesia (
<collectingCountry id="8CC376137E52FFC96BB99C91FCD4FDD9" box="[659,813,511,535]" name="Cook Islands" pageId="2" pageNumber="20">Cook Islands</collectingCountry>
). In most of its huge known range the species is almost always found with ants of the genus
<taxonomicName id="33D44D007E52FFC96B639F4AFCAFFDF2" authority="Myrmicinae" authorityName="Myrmicinae" box="[585,854,548,572]" class="Insecta" family="Formicidae" genus="Pheidole" kingdom="Animalia" order="Hymenoptera" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC96B639F4AFD54FDF2" box="[585,685,548,572]" italics="true" pageId="2" pageNumber="20">Pheidole</emphasis>
(Myrmicinae)
</taxonomicName>
, which almost certainly is its primary host-genus; however, it also was reported once from an insectarium in
<collectingCountry id="8CC376137E52FFC96A489F29FC45FD91" box="[866,956,583,607]" name="Netherlands" pageId="2" pageNumber="20">Holland</collectingCountry>
in a
<taxonomicName id="33D44D007E52FFC96D2E9F27FAE7FDAE" box="[1028,1310,585,608]" class="Insecta" family="Formicidae" genus="Tetramorium" kingdom="Animalia" order="Hymenoptera" pageId="2" pageNumber="20" phylum="Arthropoda" rank="species" species="guyanensis">
<emphasis id="C6A0EA917E52FFC96D2E9F27FAE7FDAE" box="[1028,1310,585,608]" italics="true" pageId="2" pageNumber="20">Tetramorium guyanensis</emphasis>
</taxonomicName>
nest (also Myrmicinae). The
<collectingCountry id="8CC376137E52FFC968469F02FE4EFD4A" box="[364,439,620,644]" name="Gabon" pageId="2" pageNumber="20">Gabon</collectingCountry>
male, also associated with
<taxonomicName id="33D44D007E52FFC96BC59F02FCAAFD4A" box="[751,851,620,644]" class="Insecta" family="Formicidae" genus="Pheidole" kingdom="Animalia" order="Hymenoptera" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC96BC59F02FCAAFD4A" box="[751,851,620,644]" italics="true" pageId="2" pageNumber="20">Pheidole</emphasis>
</taxonomicName>
sp., is new record for
<collectingCountry id="8CC376137E52FFC96D7E9F02FB5BFD4A" box="[1108,1186,620,644]" name="Gabon" pageId="2" pageNumber="20">Gabon</collectingCountry>
, from which only one
<taxonomicName id="33D44D007E52FFC969BD9FFEFEEEFD66" box="[151,279,656,680]" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="order">Zygentoma</taxonomicName>
was hitherto known:
<taxonomicName id="33D44D007E52FFC96B0D9FFEFCFCFD66" box="[551,773,656,680]" class="Insecta" family="Nicoletiidae" genus="Hematelura" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="species" species="doriae">
<emphasis id="C6A0EA917E52FFC96B0D9FFEFCFCFD66" box="[551,773,656,680]" italics="true" pageId="2" pageNumber="20">Hematelura doriae</emphasis>
</taxonomicName>
, reported from near Libreville by
<bibRefCitation id="90454B727E52FFC96D989FE1FEBCFD02" author="Silvestri" pageId="2" pageNumber="20" refString="Silvestri, F. (1918) Contribuzione alla conoscenza dei termitidi e termitofili dell'Africa occidentale. II. Termitofili. Parte prima. Thysanura. Bolletino del Laboratorio di Zoologia Generale e Agraria di Portici, 12, 287 - 346." type="journal article" year="1918">
Silvestri (1918, sub
<taxonomicName id="33D44D007E52FFC969BD9FDAFEC3FD02" box="[151,314,692,716]" class="Insecta" family="Nicoletiidae" genus="Monachtinella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC969BD9FDAFEC3FD02" box="[151,314,692,716]" italics="true" pageId="2" pageNumber="20">Monachtinella</emphasis>
</taxonomicName>
)
</bibRefCitation>
. The presence of males and females of
<taxonomicName id="33D44D007E52FFC96A219FDBFC94FD02" box="[779,877,693,716]" class="Insecta" family="Ateluridae" genus="Lasiotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="species" species="nanus">
<emphasis id="C6A0EA917E52FFC96A219FDBFC94FD02" box="[779,877,693,716]" italics="true" pageId="2" pageNumber="20">L. nanus</emphasis>
</taxonomicName>
in
<collectingCountry id="8CC376137E52FFC96ABE9FDAFC26FD02" box="[916,991,692,716]" name="Gabon" pageId="2" pageNumber="20">Gabon</collectingCountry>
suggests that Central West Africa may correspond to the species original range.
</paragraph>
<paragraph id="F46B36837E52FFC969ED9F92FAACFC09" blockId="2.[151,1436,151,968]" pageId="2" pageNumber="20">
The set of morphological features observed in the
<taxonomicName id="33D44D007E52FFC96A0E9F92FC64FCDA" box="[804,925,764,788]" class="Insecta" family="Ateluridae" genus="Lasiotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC96A0E9F92FC64FCDA" box="[804,925,764,788]" italics="true" pageId="2" pageNumber="20">Lasiotheus</emphasis>
</taxonomicName>
male reinforces its complete independence relative to the remaining genera of
<taxonomicName id="33D44D007E52FFC96B1A9E71FD53FCF9" box="[560,682,799,823]" class="Insecta" family="Nicoletiidae" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="subFamily" subFamily="Atelurinae">Atelurinae</taxonomicName>
. Regarding the features already considered as diagnostic for both
<taxonomicName id="33D44D007E52FFC969BD9E2AFEE9FC92" box="[151,272,836,860]" class="Insecta" family="Ateluridae" genus="Lasiotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC969BD9E2AFEE9FC92" box="[151,272,836,860]" italics="true" pageId="2" pageNumber="20">Lasiotheus</emphasis>
</taxonomicName>
and
<taxonomicName id="33D44D007E52FFC9686F9E2AFDE0FC92" box="[325,537,836,860]" class="Insecta" family="Ateluridae" genus="Pseudogastrotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC9686F9E2AFDE0FC92" box="[325,537,836,860]" italics="true" pageId="2" pageNumber="20">Pseudogastrotheus</emphasis>
</taxonomicName>
(
<bibRefCitation id="90454B727E52FFC96B029E2AFD5AFC92" author="Paclt" box="[552,675,836,860]" pageId="2" pageNumber="20" refString="Paclt, J. (1963) Thysanura. Fam. Nicoletiidae. Genera Insectorum, Creinham, 216, 1 - 56." type="journal article" year="1963">Paclt 1963</bibRefCitation>
, Mendes 2003), as well as the newly reported characters linked with sexual dimorphism of the terminal filaments, it is very likely they belong to distinct evolutionary lines. In
<taxonomicName id="33D44D007E52FFC969BD9EE2FEE9FC6A" box="[151,272,908,932]" class="Insecta" family="Ateluridae" genus="Lasiotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC969BD9EE2FEE9FC6A" box="[151,272,908,932]" italics="true" pageId="2" pageNumber="20">Lasiotheus</emphasis>
</taxonomicName>
the sclerotized pegs are restricted to the dorsal basal paracercus (cerci without pegs) and in
<taxonomicName id="33D44D007E52FFC969BD9EDEFE92FC06" box="[151,363,944,968]" class="Insecta" family="Ateluridae" genus="Pseudogastrotheus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Zygentoma" pageId="2" pageNumber="20" phylum="Arthropoda" rank="genus">
<emphasis id="C6A0EA917E52FFC969BD9EDEFE92FC06" box="[151,363,944,968]" italics="true" pageId="2" pageNumber="20">Pseudogastrotheus</emphasis>
</taxonomicName>
they are exclusive to the basal inner cerci (paracercus, devoid of specialized chaetotaxy).
</paragraph>
</subSubSection>
</treatment>
</document>