<documentID-CLB-Dataset="279807"ID-DOI="http://dx.doi.org/10.3897/zookeys.1185.107005"ID-GBIF-Dataset="0427b0cd-34c7-48f7-a72f-77bee78fe5f3"ID-PMC="PMC10701746"ID-Pensoft-Pub="1313-2970-1185-255"ID-Pensoft-UUID="DEA7C60064865535B07A16D0F5AC891D"ID-PubMed="38074911"ID-ZooBank="568A472D950D4338A7DF56C6EE473761"ModsDocID="1313-2970-1185-255"checkinTime="1701287306545"checkinUser="pensoft"docAuthor="Wang, Lu-Yu, Peng, Xian-Jin & Zhang, Zhi-Sheng"docDate="2023"docId="3809D617BDC05189A41621845D25E680"docLanguage="en"docName="ZooKeys 1185: 255-267"docOrigin="ZooKeys 1185"docPubDate="2023-11-29"docSource="http://dx.doi.org/10.3897/zookeys.1185.107005"docTitle="Tricholathys xizangensis sp. nov. (西藏毛隐蛛)"docType="treatment"docVersion="5"id="DEA7C60064865535B07A16D0F5AC891D"lastPageNumber="255"masterDocId="DEA7C60064865535B07A16D0F5AC891D"masterDocTitle="The first record of Tricholathys Chamberlin & Ivie, 1935 (Araneae, Dictynidae) from China, with a new combination and descriptions of seven new species"masterLastPageNumber="267"masterPageNumber="255"pageNumber="255"updateTime="1720490822158"updateUser="ExternalLinkService">
<mods:titleid="963E80A77B0399388223BDFC2924A096">The first record of Tricholathys Chamberlin & Ivie, 1935 (Araneae, Dictynidae) from China, with a new combination and descriptions of seven new species</mods:title>
<mods:affiliationid="CF9FF99C82E7A529883E4BC614B713DF">Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China</mods:affiliation>
<mods:affiliationid="85425F9B47F547F209622ECE45F9499C">College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China</mods:affiliation>
<mods:affiliationid="297B68789EDBD7C8AB152D90326921F4">Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China</mods:affiliation>
<figureCitationid="17586231936C603D779BF20D883E261C"captionStart="Figure 14"captionStartId="F14"captionText="Figure 14. Tricholathys xizangensis sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B same, retrolateral view C Epigyne, ventral view D same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; DP = digitiform process; Em = embolus; FD = fertilization duct; PA posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure14"httpUri="https://binary.pensoft.net/fig/944664"pageId="0"pageNumber="255">Figs 14</figureCitation>
<figureCitationid="1A4BE682266A808D7E2E3199F37EE7EB"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">, 15</figureCitation>
<figureCitationid="82BE08A2674313695E7B4870754E4A0C"captionStart="Figure 16"captionStartId="F16"captionText="Figure 16. Distribution of Tricholathys in China."figureDoi="10.3897/zookeys.1185.107005.figure16"httpUri="https://binary.pensoft.net/fig/944666"pageId="0"pageNumber="255">, 16</figureCitation>
<paragraphid="EEA6749CC7DA1EF66630EE723255BFDB"pageId="0"pageNumber="255">The specific name is derived from the type locality the location of the type locality in Tibet; Xizang is a Chinese name for Tibet.</paragraph>
This species can be distinguished from all other congeners in having the posterior arm of conductor short and with a hook-shaped end, the anterior arm of the conductor terminating at about the 9
<figureCitationid="1467562093186881BC2B8A549D204E64"captionStart="Figure 14"captionStartId="F14"captionText="Figure 14. Tricholathys xizangensis sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B same, retrolateral view C Epigyne, ventral view D same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; DP = digitiform process; Em = embolus; FD = fertilization duct; PA posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure14"httpUri="https://binary.pensoft.net/fig/944664"pageId="0"pageNumber="255">14A, B</figureCitation>
,
<figureCitationid="6366B66855BDD893AC6BE2376CDE2373"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">15C-E</figureCitation>
), the copulatory ducts long, with 3 turns, and with an indistinct membranous part (Figs
<figureCitationid="3E98812AE9FFC09116C229D6DF504E42"captionStart="Figure 14"captionStartId="F14"captionText="Figure 14. Tricholathys xizangensis sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B same, retrolateral view C Epigyne, ventral view D same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; DP = digitiform process; Em = embolus; FD = fertilization duct; PA posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure14"httpUri="https://binary.pensoft.net/fig/944664"pageId="0"pageNumber="255">14C, D</figureCitation>
,
<figureCitationid="81553CBEDA6194D5283D3F04526975B0"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">15F, G</figureCitation>
same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; DP = digitiform process; Em = embolus; FD = fertilization duct; PA posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp spermatheca.
<figureCitationid="B5C7BC7F9273B8F0A360E15232EB116B"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">15A</figureCitation>
) total length 4.95. Total length of males 4.95-5.50. Prosoma 2.52 long, 1.90 wide; opisthosoma 2.70 long, 1.74 wide. Eye sizes and interdistances: AME 0.08, ALE 0.11, PME 0.08, PLE 0.11; AME-AME 0.08, AME-ALE 0.06, PME-PME 0.15, PME-PLE 0.12, ALE-PLE 0.04. MOA 0.25 long, anterior width 0.25, posterior width 0.31. Clypeus height 0.13. Chelicerae with 4 promarginal and 2 retromarginal teeth. Leg measurements: I 5.59 (1.63, 2.05, 1.11, 0.80); II 4.93 (1.43, 1.68, 1.07, 0.75); III 4.44 (1.34, 1.41, 0.95, 0.74); IV 5.86 (1.66, 1.96, 1.37, 0.87).
<figureCitationid="C6186EAC0A0EB2EBD21C0E8953DE3782"captionStart="Figure 14"captionStartId="F14"captionText="Figure 14. Tricholathys xizangensis sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B same, retrolateral view C Epigyne, ventral view D same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; DP = digitiform process; Em = embolus; FD = fertilization duct; PA posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure14"httpUri="https://binary.pensoft.net/fig/944664"pageId="0"pageNumber="255">14A, B</figureCitation>
,
<figureCitationid="A6EDECB9550A59F097EEF192A7723E95"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">15C-E</figureCitation>
). Tibia with retrolateral apophysis with broad, rounded tip. Tip of Cymbium with 3 spines. Anterior arm terminating at about 9:00
<figureCitationid="ED77B8B3A5AF6CB4F6478708A89901CA"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">15B</figureCitation>
. Total length 4.35 (4.35-5.91 in other paratype females). Prosoma 2.26 long, 1.67 wide; opisthosoma 2.48 long, 1.53 wide. Eye sizes and interdistances: AME 0.09, ALE 0.11, PME 0.08, PLE, 0.09; AME-AME 0.09, AME-ALE 0.04, PME-PME 0.14, PME-PLE 0.12, ALE-PLE 0.06. MOA 0.27 long, anterior width 0.27, posterior width 0.31. Clypeus height 0.17. Leg measurements: I 4.88 (1.43, 1.65, 1.08, 0.72); II 4.58 (1.37, 1.52, 1.00, 0.69); III 4.08 (1.16, 1.27, 1.00, 0.65); IV 5.49 (1.49, 1.92, 1.26, 0.82).
<figureCitationid="34F8AD4FC6B96A1415F938DDE8F0EE0B"captionStart="Figure 14"captionStartId="F14"captionText="Figure 14. Tricholathys xizangensis sp. nov. A, B holotype male C, D paratype female A left male palp, ventral view B same, retrolateral view C Epigyne, ventral view D same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; DP = digitiform process; Em = embolus; FD = fertilization duct; PA posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure14"httpUri="https://binary.pensoft.net/fig/944664"pageId="0"pageNumber="255">14C, D</figureCitation>
,
<figureCitationid="44AB94ABDDB0935591B4B613CCD0B835"captionStart="Figure 15"captionStartId="F15"captionText="Figure 15. Tricholathys xizangensis sp. nov. A, C-E holotype male B, F, G paratype female A male habitus, dorsal view B Female habitus, dorsal view C left male palp, prolateral view D same, ventral view E same, retrolateral view F epigyne, ventral view G same, dorsal view."figureDoi="10.3897/zookeys.1185.107005.figure15"httpUri="https://binary.pensoft.net/fig/944665"pageId="0"pageNumber="255">15F, G</figureCitation>
). Copulatory openings almost semicircular. Spermathecae small. Weakly sclerotized part indistinct; strongly sclerotized part spiral, with 3 turns.
<figureCitationid="058F0D2E57D78ADFCD88AD4246C22B06"captionStart="Figure 16"captionStartId="F16"captionText="Figure 16. Distribution of Tricholathys in China."figureDoi="10.3897/zookeys.1185.107005.figure16"httpUri="https://binary.pensoft.net/fig/944666"pageId="0"pageNumber="255">16</figureCitation>
<taxonomicNameid="26C3842DE93D4BB9F8B75D6610DE6274"authorityName="Chamberlin & Ivie"authorityYear="1935"class="Arachnida"family="Dictynidae"genus="Tricholathys"kingdom="Animalia"lsidName="Tricholathys"order="Araneae"pageId="0"pageNumber="255"phylum="Arthropoda"rank="genus">
