<documentid="BA8F47A95EDD5CCA604BA229AB265985"ID-CLB-Dataset="303513"ID-DOI="10.50826/bnmnszool.48.2_29"ID-GBIF-Dataset="393dba31-cf98-4b3a-ba15-836e1018bdb1"ID-ISSN="2434-091X"ID-Zenodo-Dep="13824151"IM.bibliography_approvedBy="karina"IM.illustrations_approvedBy="karina"IM.materialsCitations_approvedBy="karina"IM.metadata_approvedBy="karina"IM.taxonomicNames_approvedBy="karina"IM.treatments_approvedBy="karina"checkinTime="1718643428702"checkinUser="felipe"docAuthor="Naven Kumar, R K, Sivalingam, Azhagu Madhavan, Alex, Arockia & Brahma, Neha"docDate="2022"docId="625F87DDFF8328656DD1FE16FCBEF99C"docLanguage="en"docName="BullNatlMusNatSciSerA.48.2.29-34.pdf"docOrigin="Bulletin of the National Museum of Nature and Science. Series A, Zoology 48 (2)"docSource="http://dx.doi.org/10.4103/jpbs.jpbs_562_23"docStyle="DocumentStyle:A6FFB80BFE6276686563735C80A89639.2:BullNatlMusNatSciSerA.2021-.journal_article.english.affilindex"docStyleId="A6FFB80BFE6276686563735C80A89639"docStyleName="BullNatlMusNatSciSerA.2021-.journal_article.english.affilindex"docStyleVersion="2"docTitle="Utivarachna phyllicola Deeleman-Reinhold 2001"docType="treatment"docVersion="3"lastPageNumber="33"masterDocId="9E66FFA5FF8228616F12FFE1FFF1FF89"masterDocTitle="A Record of Utivarachna phyllicola (Araneae, Trachelidae) from Lampi Island, Southern Myanmar"masterLastPageNumber="34"masterPageNumber="29"pageNumber="30"updateTime="1726956012540"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0">
<mods:titleid="BB4EF127D1715BF749FC632AB5593F78">A Record of Utivarachna phyllicola (Araneae, Trachelidae) from Lampi Island, Southern Myanmar</mods:title>
<bibRefCitationid="8E674B3AFF8328606CD2FE16FB25FD86"author="Deeleman-Reinhold, C. L."box="[960,1236,503,527]"pageId="1"pageNumber="30"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
<materialsCitationid="5A9E3C96FF8328606CAEFDD3FC49FD06"collectingDate="1986-03-03"collectingDateMax="1986-03-07"collectingDateMin="1986-03-03"collectionCode="R"collectorName="C. L. Deeleman & Naturalis Biodiversity Center & Leiden & Rijksmuseum van Natuurlijke Historie"country="Thailand"elevation="1000"location="Khao Yai National Park"pageId="1"pageNumber="30"specimenCount="2"specimenCount-female="1"specimenCount-male="1"stateProvince="Nakhon Ratchasima"typeStatus="holotype">
<bibRefCitationid="8E674B3AFF8328606CAEFDD3FB20FDC3"author="Deeleman-Reinhold, C. L."box="[956,1233,562,586]"pageId="1"pageNumber="30"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
<materialsCitationid="5A9E3C96FF8328606CD0FD99FB93FC0B"collectingDate="1986-03-03"collectingDateMax="1986-03-07"collectingDateMin="1986-03-03"collectionCode="R"collectorName="C. L. Deeleman & Naturalis Biodiversity Center & Leiden & Rijksmuseum van Natuurlijke Historie"country="Thailand"elevation="1000"location="Khao Yai National Park"pageId="1"pageNumber="30"specimenCount="2"specimenCount-female="1"specimenCount-male="1"stateProvince="Nakhon Ratchasima"typeStatus="holotype">
<locationid="EF296010FF8328606B88FD5CFC57FD7E"LSID="urn:lsid:plazi:treatment:625F87DDFF8328656DD1FE16FCBEF99C:EF296010FF8328606B88FD5CFC57FD7E"country="Thailand"name="Khao Yai National Park"pageId="1"pageNumber="30"stateProvince="Nakhon Ratchasima">Khao Yai National Park</location>
<collectionCodeid="8CE7AE0EFF8328606B5AFCE3FBACFC90"box="[1096,1117,770,793]"country="Chile"name="Departamento de Geologia, Universidad de Chile"pageId="1"pageNumber="30">R</collectionCode>
. and
<collectorNameid="4703531DFF8328606B89FCE3FCB8FCB4"pageId="1"pageNumber="30">C. L. Deeleman</collectorName>
<figureCitationid="72CD2A4EFF8328606CE4FC14FBC8FB84"box="[1014,1081,1013,1037]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="1"pageNumber="30">Fig. 4</figureCitation>
However, we are not sure which species group it belongs to, because the subdivision proposed by
<bibRefCitationid="8E674B3AFF8328606DD1FB9EFC1DFB1E"author="Deeleman-Reinhold, C. L."box="[707,1004,1151,1175]"pageId="1"pageNumber="30"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold (2001)</bibRefCitation>
should be reviewed. In the key of the article (p. 372),
was treated as a species group of its own with characteristics including some variable features of the eyes and chelicerae. For instance, the posterior eye row shows different phases by the viewing angle, and the number of teeth on the retromargin of the fang furrow of the chelicera can be variable, as it is four in the present specimen, not three as specified in the key. The comparison of the palpal organs and female genitalia among species was also insufficient. Focusing on the structure of the male palp among species of the genus, in fact,
<bibRefCitationid="8E674B3AFF8328606CB3F94BFB21F94B"author="Deeleman-Reinhold, C. L."box="[929,1232,1706,1730]"pageId="1"pageNumber="30"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
<bibRefCitationid="8E674B3AFF8328606B73F92CFC9EF88E"author="Deeleman-Reinhold, C. L."pageId="1"pageNumber="30"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
<bibRefCitationid="8E674B3AFF8028636ECAFBB3FD3DFBEE"author="Deeleman-Reinhold, C. L."box="[472,716,1106,1128]"pageId="2"pageNumber="31"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
</taxonomicName>
, a male from Lampi Island, Myanmar. Body length: 3.6 mm.
Prosoma. Carapace wholly granulated, longer than wide (length/width 1.25), posteriorly narrowed to the width of the pedicel, with a small but distinct fovea (
<figureCitationid="72CD2A4EFF8028636E4AF92CFE68F96C"box="[344,409,1741,1765]"captionStart="Fig"captionStartId="2.[163,196,1106,1128]"captionTargetBox="[367,1010,215,1071]"captionTargetId="figure-297@2.[365,1011,213,1072]"captionTargetPageId="2"captionText="Fig. 1. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. Body length: 3.6mm."figureDoi="http://doi.org/10.5281/zenodo.13824153"httpUri="https://zenodo.org/record/13824153/files/figure.png"pageId="2"pageNumber="31">Fig. 1</figureCitation>
). Anterior eye row procurved, posterior eye row slightly procurved or straight in dorsal view, differs depending on the viewing angle. AME round, other eyes oval. ALE>PME>PLE>AME (10: 8: 7: 6), AME– AME<AME–ALE (3: 4), PME–PME>PME– PLE (8: 7), ALE and PLE close to each other. Median ocular area as long as wide, wider behind than in front (6: 4). Clypeus narrow, as same as the diameter of AME. Chelicera with three teeth on the promargin of fang furrow, four teeth on the retromargin (
<figureCitationid="72CD2A4EFF8028636CCFFA1CFBD3F99C"box="[989,1058,1533,1557]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="2"pageNumber="31">Fig. 2</figureCitation>
). Maxillae wide and round distally, labium longer than wide (length/width 1.20), sternum slightly longer than wide (length/width 1.06). Legs without spines and strong hairs, coxae of legs I and II remarkably long, as long as tibia of the legs, metatarsi of legs I and II ventrally with rows of thin hairs with granular base, metatarsi of legs III and IV apically with scopula, tarsus with claw tuft and two claws which are small and not pectinate.
<bibRefCitationid="8E674B3AFF8128626EE6F9FFFD17F9BA"author="Deeleman-Reinhold, C. L."box="[500,742,1566,1588]"pageId="3"pageNumber="32"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
</taxonomicName>
, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2 mm.
<bibRefCitationid="8E674B3AFF8628656D2CFD1BFCC1FC99"author="Deeleman-Reinhold, C. L."box="[574,816,762,784]"pageId="4"pageNumber="33"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold, 2001</bibRefCitation>
: 1. Khao Yai National Park in the Nakhon Ratchasima Province, Thailand (the type locality). 2. Mt. Kinabalu, Sabah, Borneo, Malaysia. 3. Ketambe, Gunung Leuser National Park, northern Sumatra, Indonesia. 4. Mt. Singgalang, Jambi Province, western Sumatra, Indonesia. All recorded by
<bibRefCitationid="8E674B3AFF8628656DDEFCB3FC38FCE0"author="Deeleman-Reinhold, C. L."box="[716,969,850,873]"pageId="4"pageNumber="33"refId="ref2540"refString="Deeleman-Reinhold, C. L. 2001. Forest spiders of South East Asia: with a Revision of the Sac and Ground Spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae). 591 pp. Brill, Leiden."type="book"year="2001">Deeleman-Reinhold (2001)</bibRefCitation>
. +: 5. Lampi Island, west of Malay Peninsula, Bokepying Township, Tanintharyi Region, Myanmar (the present record). The previous record in Myanmar was made by
<bibRefCitationid="8E674B3AFF8628656D1EFC6CFCF3FC2A"author="Dankittipakul, P. & M. Tavano & T. Singtripop"box="[524,770,909,931]"pageId="4"pageNumber="33"pagination="133 - 146"refId="ref2490"refString="Dankittipakul, P., M. Tavano and T. Singtripop 2011. Two new species of the spider genus Utivarachna Kishida, 1940 from Southeast Asia (Araneae, Corinnidae). Annali del Museo Civico di Storia Naturale Giacomo Doria, 103: 133 - 146."type="book chapter"year="2011">
<figureCitationid="72CD2A4EFF8628656E31FBDBFE7AFBDB"box="[291,395,1082,1106]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="4"pageNumber="33">Figs. 3–5</figureCitation>
). The basal part of femur slightly bent downward, without swelling or apophysis, the length of patella one-third of the femur, tibia basally short, the retrolateral tibial apophysis large, its apical part furnished with a sclerotized hook and the surrounding membrane (
<figureCitationid="72CD2A4EFF8628656F86FAEBFF0CFAAB"box="[148,253,1290,1314]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="4"pageNumber="33">Figs. 4–5</figureCitation>
). Cymbium longer than wide, apically with two strong hairs, palpal organ large and globular, without distinct tegular apophysis and conductor, embolus filiform, long, coiled around the tegulum and visible through the cymbium as shown by the arrow on
<figureCitationid="72CD2A4EFF8628656E99FA56FE3DFA46"box="[395,460,1463,1487]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="4"pageNumber="33">Fig. 4</figureCitation>
<figureCitationid="72CD2A4EFF8628656E5AF9A3FE79F9D3"box="[328,392,1602,1626]"captionStart="Fig"captionStartId="2.[163,196,1106,1128]"captionTargetBox="[367,1010,215,1071]"captionTargetId="figure-297@2.[365,1011,213,1072]"captionTargetPageId="2"captionText="Fig. 1. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. Body length: 3.6mm."figureDoi="http://doi.org/10.5281/zenodo.13824153"httpUri="https://zenodo.org/record/13824153/files/figure.png"pageId="4"pageNumber="33">Fig. 1</figureCitation>
<figureCitationid="72CD2A4EFF8628656FE9F966FEB1F916"box="[251,320,1671,1695]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="4"pageNumber="33">Fig. 6</figureCitation>
). Colulus absent, replaced by a pair of vestigial hairs, all spinnerets without distinct large spigots, anterior-lateral spinnerets semi-cylindrical, thicker than others, median ones small and short, posterior-lateral ones longest (
<figureCitationid="72CD2A4EFF8628656DEEFBF6FCCFFBA6"box="[764,830,1047,1071]"captionStart="Figs"captionStartId="3.[163,205,1566,1588]"captionTargetBox="[158,1217,214,1532]"captionTargetId="figure-9@3.[157,1218,213,1533]"captionTargetPageId="3"captionText="Figs. 2–7. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. 2. Left chelicera, ventral view. 3. Palpal organ of the left palp, ventral view. 4. Tibia and cymbium of the left palp, dorsal view. The arrow indicates the location of the embolus visible through the cuticle of the cymbium. 5. Retrolateral tibial apophysis of left male palp, lateral view. 6. Pedicel with membranous base, ventral view. 7. Spinnerets, ventral view. Scales: 0.2mm."figureDoi="http://doi.org/10.5281/zenodo.13824155"httpUri="https://zenodo.org/record/13824155/files/figure.png"pageId="4"pageNumber="33">Fig. 7</figureCitation>
<figureCitationid="72CD2A4EFF8628656B19FBDBFBA0FBDB"box="[1035,1105,1082,1106]"captionStart="Fig"captionStartId="2.[163,196,1106,1128]"captionTargetBox="[367,1010,215,1071]"captionTargetId="figure-297@2.[365,1011,213,1072]"captionTargetPageId="2"captionText="Fig. 1. Utivarachna phyllicola Deeleman-Reinhold, 2001, a male from Lampi Island, Myanmar. Body length: 3.6mm."figureDoi="http://doi.org/10.5281/zenodo.13824153"httpUri="https://zenodo.org/record/13824153/files/figure.png"pageId="4"pageNumber="33">Fig. 1</figureCitation>
). Prosoma: Carapace brown with three pairs of black dots on both sides; chelicerae, maxillae, labium and sternum brown; coxa, trochanter, the basal two thirds of femur of leg I and the middle part of femur of leg II also brown, other segments of leg I and II yellow; legs III and IV basally light yellowish brown, distally yellow. Opisthosoma: dorsal plate light yellowish brown with indistinct markings; other parts yellowish white; spinnerets yellow.
<figureCitationid="72CD2A4EFF8628656C67FA56FC4FFA46"box="[885,958,1463,1487]"captionStart="Fig"captionStartId="4.[163,196,762,784]"captionTargetBox="[311,1064,214,728]"captionTargetId="figure-306@4.[310,1065,213,729]"captionTargetPageId="4"captionText="Fig. 8. Records of Utivarachna phyllicola Deeleman-Reinhold, 2001, in southeast Asia. ˔: 1. Khao Yai National Park in the Nakhon Ratchasima Province, Thailand (the type locality). 2. Mt. Kinabalu, Sabah, Borneo, Malaysia. 3. Ketambe, Gunung Leuser National Park, northern Sumatra, Indonesia. 4. Mt. Singgalang, Jambi Province, western Sumatra, Indonesia. All recorded by Deeleman-Reinhold (2001). +: 5. Lampi Island, west of Malay Peninsula, Bokepying Township, Tanintharyi Region, Myanmar (the present record). The previous record in Myanmar was made by Dankittipakul et al. (2011) from Thahtay Kyun Island near Kawthaung, in the same area and about 90 km South of Lampi Island."figureDoi="http://doi.org/10.5281/zenodo.13824157"httpUri="https://zenodo.org/record/13824157/files/figure.png"pageId="4"pageNumber="33">Fig. 8</figureCitation>
