<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="7A7067980C525F2F82108BC090A83215"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 serrata sp. nov. (齿状毛隐蛛)"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="B2342C0764E340F83652B7DE7FB3FC04">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="179C27675AAFDD5FDE41DDC42D15E981">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="D60B4777E18FB52B13AECDEC2EF69936">College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China</mods:affiliation>
<mods:affiliationid="5FD09AD9D4972DC72DE75DD462050B6A">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="429AA7BF716FE57CB26857F2271ECAEB"captionStart="Figure 12"captionStartId="F12"captionText="Figure 12. Tricholathys serrata 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; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure12"httpUri="https://binary.pensoft.net/fig/944662"pageId="0"pageNumber="255">Figs 12</figureCitation>
<figureCitationid="95B09D67F1E896A308B734330F5E9087"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">, 13</figureCitation>
<figureCitationid="54392C3D824A633B7B37354919B560D0"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>
This species can be distinguished from all congeners by the bifurcated tip of the posterior arm of the conductor (Figs
<figureCitationid="ABCE9EB95A615B063ED0D7F3EDBE2CBB"captionStart="Figure 12"captionStartId="F12"captionText="Figure 12. Tricholathys serrata 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; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure12"httpUri="https://binary.pensoft.net/fig/944662"pageId="0"pageNumber="255">12A, B</figureCitation>
,
<figureCitationid="B418CF74FB250C1CB2BF78A0A7ED7279"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13C-E</figureCitation>
), the very short tibia, the rounded tip of retrolateral tibial apophysis, the short, almost straight copulatory ducts which originate from the mesal part of the epigynal plate, and the spermathecae which is wider than long (Figs
<figureCitationid="F10919703A5CC6CD81CC018AA72358CE"captionStart="Figure 12"captionStartId="F12"captionText="Figure 12. Tricholathys serrata 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; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure12"httpUri="https://binary.pensoft.net/fig/944662"pageId="0"pageNumber="255">12C, D</figureCitation>
,
<figureCitationid="DD19D25C3FE2F33C15658BB77743054F"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13F, G</figureCitation>
same, dorsal view. Abbreviations: AA = anterior arm of conductor; CD = copulatory duct; CO = copulatory opening; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca.
<figureCitationid="271EDD5621CC758374782F2D8E1B0794"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13A</figureCitation>
. Total length 4.04. Prosoma 2.05 long, 1.59 wide; opisthosoma 2.13 long, 1.40 wide. Eye sizes and interdistances: AME 0.09, ALE 0.10, PME 0.07, PLE, 0.07; AME-AME 0.09, AME-ALE 0.04, PME-PME 0.10, PME-PLE 0.09, ALE-PLE 0.05. MOA 0.22 long, anterior width 0.22, posterior width 0.25. Clypeus height 0.10. Chelicerae with 3 promarginal and 2 retromarginal teeth. Leg measurements: I 5.62 (1.60, 2.12, 1.16, 0.74); II 5.06 (1.41, 1.82, 1.12, 0.71); III 4.65 (1.29, 1.53, 1.13, 0.70); IV 5.83 (1.58, 2.01, 1.46, 0.78). Leg formula: 4123.
<figureCitationid="8757C8302BAC2CE3BC610BC9D9EC7FB7"captionStart="Figure 12"captionStartId="F12"captionText="Figure 12. Tricholathys serrata 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; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure12"httpUri="https://binary.pensoft.net/fig/944662"pageId="0"pageNumber="255">12A, B</figureCitation>
,
<figureCitationid="EF8089D24F8C048723B382AA361D919F"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13C-E</figureCitation>
). Tibia short, as long as wide. Retrolateral tibial apophysis wider than long, with rounded tip. Anterior arm of conductor terminating at about 11:00
position; tip of posterior arm of conductor bifurcated; ventral branch longer than dorsal; dorsal branch serrated (Figs
<figureCitationid="2DB2D47BFFBF0139A238C7BE7620868F"captionStart="Figure 12"captionStartId="F12"captionText="Figure 12. Tricholathys serrata 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; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure12"httpUri="https://binary.pensoft.net/fig/944662"pageId="0"pageNumber="255">12B</figureCitation>
,
<figureCitationid="49D0C10A978EE72A44C5AD0BEC493AAC"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13C, E</figureCitation>
). Embolus with large base; filamentous part originating at about 9:30
<figureCitationid="72DBA9F68CD5E62B1D91B18968CA6D0E"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13B</figureCitation>
. Total length 5.45 (4.86 in other paratype female). Prosoma 2.03 long, 1.59 wide; opisthosoma 3.40 long, 2.24 wide. Eye sizes and interdistances: AME 0.08, ALE 0.10, PME 0.08, PLE, 0.09; AME-AME 0.10, AME-ALE 0.04, PME-PME 0.13, PME-PLE 0.10, ALE-PLE 0.06. MOA 0.26 long, anterior width 0.24, posterior width 0.27. Clypeus height 0.11. Leg measurements: I 5.34 (1.57, 1.90, 1.13, 0.74); II 4.95 (1.41, 1.71, 1.07, 0.76); III 4.72 (1.33, 1.58, 1.03, 0.78); IV 5.69 (1.61, 1.86, 1.40, 0.82). Leg formula: 4123.
<figureCitationid="628734083651149821A768C7B50FC9C3"captionStart="Figure 12"captionStartId="F12"captionText="Figure 12. Tricholathys serrata 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; Em = embolus; FD = fertilization duct; PA = posterior arm of conductor; RTA = retrolaterial tibial apophysis; Sp = spermatheca."figureDoi="10.3897/zookeys.1185.107005.figure12"httpUri="https://binary.pensoft.net/fig/944662"pageId="0"pageNumber="255">12C, D</figureCitation>
,
<figureCitationid="216C189A1B9C317BAB4E0B7B16891016"captionStart="Figure 13"captionStartId="F13"captionText="Figure 13. Tricholathys serrata 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.figure13"httpUri="https://binary.pensoft.net/fig/944663"pageId="0"pageNumber="255">13F, G</figureCitation>
). Copulatory openings about as large as the spermathecae, separated by a space wider than their diameter. Strongly sclerotized part of copulatory ducts twice as long as length of weakly sclerotized part and with a tapered accessorial caecus. Spermathecae globular, small, diameter slightly more than width of copulatory ducts.
Known only from the type locality, Tibet, China (Fig.
<figureCitationid="2C0843BB384F003DAEE0D332CB47A1F4"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>
