<documentid="388F48BDF082B1B8F649E35B6CB1F39D"ID-CLB-Dataset="299942"ID-DOI="10.11646/zootaxa.5481.1.5"ID-GBIF-Dataset="0423a610-a41f-4de4-9d39-289e7ec7168f"ID-ISSN="1175-5326"ID-Zenodo-Dep="12742641"ID-ZooBank="987E3EFF-7867-4186-A26A-79359DF762C8"IM.bibliography_approvedBy="juliana"IM.illustrations_approvedBy="felipe"IM.materialsCitations_approvedBy="juliana"IM.metadata_approvedBy="juliana"IM.taxonomicNames_approvedBy="juliana"IM.treatmentCitations_approvedBy="juliana"IM.treatments_approvedBy="juliana"checkinTime="1721033360048"checkinUser="plazi"docAuthor="Wimolsuthikul, Chaipat, Yamane, Seiki, Samung, Yudthana & Jaitrong, Weeyawat"docDate="2024"docId="542287ABFFB241382CD640A44859F879"docLanguage="en"docName="zootaxa.5481.1.5.pdf"docOrigin="Zootaxa 5481 (1)"docSource="http://dx.doi.org/10.11646/zootaxa.5481.1.5"docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article"docStyleId="647186512141C8FC8976D5BCC54AEB7D"docStyleName="Zootaxa.2013-.journal_article"docStyleVersion="9"docTitle="Carebara pygmaea"docType="treatment"docVersion="6"lastPageNumber="96"masterDocId="A81BFFD3FFBC41292C4144224C40FF9D"masterDocTitle="A revision of the Carebara pygmaea (Emery, 1887) species group (Hymenoptera: Formicidae) in Thailand"masterLastPageNumber="100"masterPageNumber="79"pageNumber="93"updateTime="1732492712269"updateUser="ExternalLinkService"zenodo-license-document="CLOSED">
<mods:titleid="CFEFCE50909C46EBE3D35E62C6817984">A revision of the Carebara pygmaea (Emery, 1887) species group (Hymenoptera: Formicidae) in Thailand</mods:title>
<mods:affiliationid="7DC353DBFF4386CCCA9B73709B2581FF">Khlong & Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.</mods:affiliation>
<mods:affiliationid="736A6DB8A231192558297CA58C86E389">Office of Natural Science Research, National Science Museum, 39, Moo & Office of Natural Science Research, National Science Museum, 39, Moo & Khlong Luang, Pathum Thani, 12120 Thailand.</mods:affiliation>
<bibRefCitationid="B81A4B4CFFB241272DCA40A44E6BFB3D"author="Emery, C."box="[395,555,1158,1184]"pageId="14"pageNumber="93"pagination="465 - 473"refId="ref11909"refString="Emery, C. (1887) Catalogo delle formiche esistenti nelle collezioni del Museo Civico di Genova. Parte terza. Formiche della regione Indo-Malese e dell'Australia (continuazione e fine). Annali del Museo civico di storia naturale di Genova, 25 [= (2) (5)], 465 - 473."type="journal article"year="1887">Emery, 1887</bibRefCitation>
<figureCitationid="44B02A38FFB241272CDE40894D66FB58"box="[159,294,1195,1221]"captionStart-0="FIGURE 10"captionStart-1="FIGURE 11"captionStart-2="FIGURE 12"captionStartId-0="16.[151,250,1891,1915]"captionStartId-1="17.[151,250,1455,1479]"captionStartId-2="18.[151,250,1624,1648]"captionTargetBox-0="[195,1393,561,1868]"captionTargetBox-1="[238,1349,181,1431]"captionTargetBox-2="[151,1436,181,1600]"captionTargetId-0="figure-190@16.[195,1393,561,1868]"captionTargetId-1="figure-17@17.[238,1349,181,1431]"captionTargetId-2="figure-22@18.[151,1436,181,1600]"captionTargetPageId-0="16"captionTargetPageId-1="17"captionTargetPageId-2="18"captionText-0="FIGURE 10. Carebara pygmaea, non-type major worker (THNHM-I-2013-05969). A, Body in profile view; B, head in fullface view; C, body in dorsal view."captionText-1="FIGURE 11. Carebara pygmaea, non-type minor worker (THNHM-I-2013-05970). A, Body in profile view; B, head in fullface view; C, body in dorsal view."captionText-2="FIGURE 12. Carebara pygmaea, non-type dealate queen (THNHM-I-00028221).A, Body in profile view; B, head in full-face view; C, body in dorsal view."figureDoi-0="http://doi.org/10.5281/zenodo.12742667"figureDoi-1="http://doi.org/10.5281/zenodo.12742669"figureDoi-2="http://doi.org/10.5281/zenodo.12742673"httpUri-0="https://zenodo.org/record/12742667/files/figure.png"httpUri-1="https://zenodo.org/record/12742669/files/figure.png"httpUri-2="https://zenodo.org/record/12742673/files/figure.png"pageId="14"pageNumber="93">Figs. 10–12</figureCitation>
<bibRefCitationid="B81A4B4CFFB241272DE140D24E1AFA9A"author="Emery, C."box="[416,602,1263,1288]"pageId="14"pageNumber="93"pagination="465 - 473"refId="ref11909"refString="Emery, C. (1887) Catalogo delle formiche esistenti nelle collezioni del Museo Civico di Genova. Parte terza. Formiche della regione Indo-Malese e dell'Australia (continuazione e fine). Annali del Museo civico di storia naturale di Genova, 25 [= (2) (5)], 465 - 473."type="journal article"year="1887">Emery, 1887: 465</bibRefCitation>
<bibRefCitationid="B81A4B4CFFB24127295640D24CB0FABB"author="Emery, C."pageId="14"pageNumber="93"pagination="310 - 338"refId="ref12008"refString="Emery, C. (1900) Formicidarum species novae vel minus cognitae in collectione Musaei Nationalis Hungarici quas in Nova- Guinea, colonia germanica, collegit L. Biro. Publicatio secunda. Termeszetrajzi Fuzetek, 23, 310 - 338."type="journal article"year="1900">Emery 1900: 327</bibRefCitation>
<bibRefCitationid="B81A4B4CFFB241272EB3412C4F8FFABB"author="Ettershank, G."box="[754,975,1294,1318]"pageId="14"pageNumber="93"pagination="73 - 171"refId="ref12084"refString="Ettershank, G. (1966) A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Australian Journal of Zoology, 14, 73 - 171. https: // doi. org / 10.1071 / ZO 9660073"type="journal article"year="1966">Ettershank 1966: 119</bibRefCitation>
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<bibRefCitationid="B81A4B4CFFB241272E56416E4E8AFAFE"author="Emery, C."box="[535,714,1355,1380]"pageId="14"pageNumber="93"pagination="259 - 270"refId="ref11968"refString="Emery, C. (1893) Voyage de M. E. Simon aux iles Philippines (mars et avril 1890). Formicides. Annales de la Societe entomologique de France, 62, 259 - 270."type="journal article"year="1893">Emery, 1893: 266</bibRefCitation>
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<bibRefCitationid="B81A4B4CFFB241272C8642624DE3F9C4"author="Ettershank, G."box="[199,419,1600,1625]"pageId="14"pageNumber="93"pagination="73 - 171"refId="ref12084"refString="Ettershank, G. (1966) A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Australian Journal of Zoology, 14, 73 - 171. https: // doi. org / 10.1071 / ZO 9660073"type="journal article"year="1966">Ettershank 1966: 124</bibRefCitation>
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<collectingMunicipalityid="3C50ACC7FFB341262FCA46D948C2FC88"box="[907,1154,763,789]"pageId="15"pageNumber="94">Khao Noi Subdistrict</collectingMunicipality>
,
<locationid="D9546066FFB3412628D146D94941FC88"LSID="urn:lsid:plazi:treatment:542287ABFFB241382CD640A44859F879:D9546066FFB3412628D146D94941FC88"box="[1168,1281,763,789]"country="Thailand"county="Sichon District"latitude="8.919383"longLatPrecision="1"longitude="99.73274"municipality="Khao Noi Subdistrict"name="Yod Nam"pageId="15"pageNumber="94"stateProvince="Nakhon Si Thammarat">Yod Nam</location>
<materialsCitationid="6CE33CE0FFB341262D604745480CFC38"ID-GBIF-Occurrence="4906507304"collectingDate="2022-02-18"collectionCode="THNHM"collectorName="W. Jaitrong"country="Thailand"county="Palian Dist."elevation="67"latitude="7.293945"location="Khao Ban Tad"longLatPrecision="1"longitude="99.880684"municipality="Ban Kuan Mai Dam"pageId="15"pageNumber="94"specimenCount="1"stateProvince="Trang">
<collectingMunicipalityid="3C50ACC7FFB341262E0847454F73FC1C"box="[585,819,871,897]"pageId="15"pageNumber="94">Ban Kuan Mai Dam</collectingMunicipality>
,
<locationid="D9546066FFB341262F0047454FA5FC1C"LSID="urn:lsid:plazi:treatment:542287ABFFB241382CD640A44859F879:D9546066FFB341262F0047454FA5FC1C"box="[833,997,871,897]"country="Thailand"county="Palian Dist."latitude="7.293945"longLatPrecision="1"longitude="99.880684"municipality="Ban Kuan Mai Dam"name="Khao Ban Tad"pageId="15"pageNumber="94"stateProvince="Trang">Khao Ban Tad</location>
WS.,
<locationid="D9546066FFB34126286C47454943FC1C"LSID="urn:lsid:plazi:treatment:542287ABFFB241382CD640A44859F879:D9546066FFB34126286C47454943FC1C"box="[1069,1283,871,897]"country="Thailand"county="Palian Dist."latitude="7.293945"longLatPrecision="1"longitude="99.880684"municipality="Ban Kuan Mai Dam"name="Ton Tae Waterfall."pageId="15"pageNumber="94"stateProvince="Trang">Ton Tae Waterfall.</location>
<emphasisid="EEFFEAAFFFB341262C86478D4EE3FC54"bold="true"box="[199,675,942,969]"pageId="15"pageNumber="94">Measurements (in mm). Major worker</emphasis>
<figureCitationid="44B02A38FFB341262DE140A54DB3FB3C"box="[416,499,1159,1185]"captionStart="FIGURE 10"captionStartId="16.[151,250,1891,1915]"captionTargetBox="[195,1393,561,1868]"captionTargetId="figure-190@16.[195,1393,561,1868]"captionTargetPageId="16"captionText="FIGURE 10. Carebara pygmaea, non-type major worker (THNHM-I-2013-05969). A, Body in profile view; B, head in fullface view; C, body in dorsal view."figureDoi="http://doi.org/10.5281/zenodo.12742667"httpUri="https://zenodo.org/record/12742667/files/figure.png"pageId="15"pageNumber="94">Fig. 10</figureCitation>
): head, promesonotum, and gastral tergite I without erect hairs; with head in full-face view, posterior one-third with transverse striation, while anterior two-thirds with longitudinal striation; eye small, with ca. 12–13 ommatidia; gastral tergite I punctate; propodeal spine almost absent.
<figureCitationid="44B02A38FFB34126288140ED4955FB74"box="[1216,1301,1231,1257]"captionStart="FIGURE 11"captionStartId="17.[151,250,1455,1479]"captionTargetBox="[238,1349,181,1431]"captionTargetId="figure-17@17.[238,1349,181,1431]"captionTargetPageId="17"captionText="FIGURE 11. Carebara pygmaea, non-type minor worker (THNHM-I-2013-05970). A, Body in profile view; B, head in fullface view; C, body in dorsal view."figureDoi="http://doi.org/10.5281/zenodo.12742669"httpUri="https://zenodo.org/record/12742669/files/figure.png"pageId="15"pageNumber="94">Fig. 11</figureCitation>
): propodeal dorsum smooth and shiny; petiole and postpetiole without hairs; propodeal junction bluntly angulate; body reddish brown.
<figureCitationid="44B02A38FFB341262D3241194D85FAC8"box="[371,453,1339,1365]"captionStart="FIGURE 12"captionStartId="18.[151,250,1624,1648]"captionTargetBox="[151,1436,181,1600]"captionTargetId="figure-22@18.[151,1436,181,1600]"captionTargetPageId="18"captionText="FIGURE 12. Carebara pygmaea, non-type dealate queen (THNHM-I-00028221).A, Body in profile view; B, head in full-face view; C, body in dorsal view."figureDoi="http://doi.org/10.5281/zenodo.12742673"httpUri="https://zenodo.org/record/12742673/files/figure.png"pageId="15"pageNumber="94">Fig. 12</figureCitation>
). Head in full-face view almost as broad as long; lateral margin weakly convex, posterior margin shallowly concave, and posterolateral corner roundly convex; cephalic median furrow indistinct. Mandible short, subtriangular. Clypeus broad, with anterior margin weakly convex. Frontal lobe poorly developed, only partly covering antennal socket; frontal carina conspicuous, reaching level of anterior margin of eye. Eye larger than in worker, located at mid-length of head laterally; three ocelli present, located slightly above level of posterior margin of eye; distances between median ocellus and lateral ocelli almost as long as distance between lateral ocelli.Antenna 11-segmented with 2-segmented club; scape thin, clavate (its width at apex almost same as length of antennal segment X), and short (when laid backward reaching posterior one-third of head length).
larger than head, in lateral view stout, with weakly convex dorsal outline. Pronotum in dorsal view invisible, overhanging by mesoscutum; in lateral view subquadrate; mesoscutum distinctly longer than broad, anterior margin roundly convex; mesoscutellum in dorsal view shorter than broad, anterior and posterior margin convex. Mesopleuron in profile clearly demarcated from lateral face of pronotum, mesoscutum, and metapleuron by distinct sutures; anepisternum clearly demarcated from katepisternum by deep oblique mesopleural sulcus; metapleuron clearly demarcated from lateral face of propodeum; metanotum short (just a ‘narrow’ band). Metanotal groove distinct. Propodeum in profile view distinctly lower than promesonotum, with its dorsal outline almost straight; propodeal spine in profile short and subtriangular, shorter than its base.
large; its anterior margin concave in dorsal view.
</paragraph>
<paragraphid="DC3436BDFFB341392C8643BD48BFFF64"blockId="15.[151,1437,150,2013]"lastBlockId="16.[151,1437,151,537]"lastPageId="16"lastPageNumber="95"pageId="15"pageNumber="94">Posterior one-third of head dorsum with fine transvers striation,anterior two thirds with fine longitudinal striation;lateral face slightly shiny; mandible smooth and shiny; clypeus smooth and shiny in median portion; antennal scape somewhat smooth and shiny. Pronotum punctate, but punctation weaker than on mesopleuron and propodeum; mesonotum punctate; mesopleuron punctate; mesopleuron largely smooth and shiny; metapleuron entirely punctate; propodeum entirely punctate. Petiole and postpetiole punctate. Gastral tergite I superficially reticulate with smooth and shiny interspaces.</paragraph>
<paragraphid="DC3436BDFFAC41392C8645214EA2FE14"blockId="16.[151,1437,151,537]"pageId="16"pageNumber="95">Dorsum of head with dense very short hairs over surface; vertex with a pair of erect hairs; frons sparse erect hairs; mandible with sparse decumbent hairs; antennal scape covered with dense decumbent hairs; pronotum without hairs; mesosomal dorsum with sparse erect hairs; legs without hairs; petiole with 2 erect hairs in the middle of peak; postpetiole without erect hairs; gastral tergite I with few erect hairs.</paragraph>
<paragraphid="DC3436BDFFAC41392C8645B14882FE30"blockId="16.[151,1437,151,537]"box="[199,1218,403,429]"pageId="16"pageNumber="95">Body dark brown to reddish brown; gaster dark brown to black; antenna and legs reddish brown.</paragraph>
a.s.l.). Most colonies were collected from dead logs on the forest floor, while one colony (TH20-WJT-21) was collected from a dead part (stem) of a living tree.
<collectingRegionid="1E4FF85FFFAD41382E3342404F33F9E1"box="[626,883,1634,1660]"country="Thailand"name="Nakhon Si Thammarat"pageId="17"pageNumber="96">Nakhon Si Thammarat</collectingRegion>
<figureCitationid="44B02A38FFAD4138283242404885F9E1"box="[1139,1221,1634,1660]"captionStart="FIGURE 13"captionStartId="19.[151,250,1999,2023]"captionTargetBox="[213,1378,244,1975]"captionTargetId="figure-45@19.[199,1389,237,1975]"captionTargetPageId="19"captionText="FIGURE 13. Distribution of Carebara pygmea species group in Thailand."figureDoi="http://doi.org/10.5281/zenodo.12742675"httpUri="https://zenodo.org/record/12742675/files/figure.png"pageId="17"pageNumber="96">Fig. 13</figureCitation>
in lacking erect hairs on the head, mesosoma, and gastral tergite I (except for 3 pairs on the frontal carinae). However, this species can be separated from the latter two by: short propodeal spine, shorter than its base or almost absent (relatively longer than their base in the letter two), and punctate lateral face of pronotum, petiolar node, and postpetiole (slightly smooth and shiny in the latter two). Pronotum of the
major worker is rather smooth but it is weakly punctate in the Thai population. However, we did not find any important differentiate between the Thai specimens from the