157 lines
16 KiB
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157 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.775.26893" ID-GBIF-Dataset="94bbfedc-52a9-4eb5-9470-6949ba161042" ID-PMC="PMC6062568" ID-Pensoft-Pub="1313-2970-775-103" ID-PubMed="30057474" ID-ZBK="8480FFF6647640E7A08C47DDC92ED854" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1313-2970-775-103" ModsDocOrigin="ZooKeys 775" ModsDocTitle="Two new species of the Aenictuswroughtonii species group (Hymenoptera, Formicidae, Dorylinae) from Thailand" checkinTime="1532073548727" checkinUser="pensoft" docAuthor="Jaitrong, Weeyawat & Ruangsittichai, Jiraporn" docDate="2018" docId="3E69B2DA56A3339A313C7D4BF25E1DF0" docLanguage="en" docName="ZooKeys 775: 103-115" docOrigin="ZooKeys 775" docSource="http://dx.doi.org/10.3897/zookeys.775.26893" docTitle="Aenictus nuchiti Jaitrong & Ruangsittichai, 2018, sp. n." docType="treatment" docUuid="C0440537-2B93-4EA6-8A29-0D7CACEB3ABB" docUuidSource="ZooBank" docVersion="5" lastPageNumber="103" masterDocId="AE4CFFC83133FF8B7601FF8F0133E133" masterDocTitle="Two new species of the Aenictuswroughtonii species group (Hymenoptera, Formicidae, Dorylinae) from Thailand" masterLastPageNumber="115" masterPageNumber="103" pageNumber="103" updateTime="1668166045101" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Two new species of the Aenictuswroughtonii species group (Hymenoptera, Formicidae, Dorylinae) from Thailand</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Jaitrong, Weeyawat</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Ruangsittichai, Jiraporn</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2018</mods:date>
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<mods:detail type="volume">
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<mods:number>775</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>103</mods:start>
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<mods:end>115</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.775.26893</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.775.26893</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-775-103</mods:identifier>
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<mods:identifier type="ZBK">8480FFF6647640E7A08C47DDC92ED854</mods:identifier>
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<mods:identifier type="ZooBank">8480FFF6647640E7A08C47DDC92ED854</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="146639838" LSID="urn:lsid:zoobank.org:act:C0440537-2B93-4EA6-8A29-0D7CACEB3ABB" httpUri="http://treatment.plazi.org/id/3E69B2DA56A3339A313C7D4BF25E1DF0" lastPageNumber="103" pageId="0" pageNumber="103">
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<subSubSection pageId="0" pageNumber="103" type="nomenclature">
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<paragraph pageId="0" pageNumber="103">
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<taxonomicName LSID="http://zoobank.org/C0440537-2B93-4EA6-8A29-0D7CACEB3ABB" class="Insecta" family="Formicidae" genus="Aenictus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Aenictus nuchiti" order="Hymenoptera" pageId="0" pageNumber="103" phylum="Arthropoda" rank="species" species="nuchiti">Aenictus nuchiti</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="103">sp. n.</taxonomicNameLabel>
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Figs 1, 2, 4
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="types">
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<paragraph pageId="0" pageNumber="103">Types.</paragraph>
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<paragraph pageId="0" pageNumber="103">Holotype (THNHM-I-02612, THNHM), 55 paratype workers (THNHM-I-02614, MHNG, SKYC, THNHM, USNM) and queen (THNHM-I-02613, THNHM), N Thailand, Chiang Mai Province, Omkoi District, Omkoi Forest, DDF (dry dipterocarp forest), 17.89583333°'N, 98.40750000°E, ca 1000 m a.s.l., 16.VII.2016, W. Jaitrong leg., Colony no. TH16-WJT-859.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="type material">
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<paragraph pageId="0" pageNumber="103">Non-type material examined.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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28 workers, Thailand, Chiang Mai Province, San Sai District, San Sai Luang Sub-district, near Maejo University Campus, mixed deciduous forest, collected from leaf litter,
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="18.927778">18.92777778°N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="99.050835">99.05083333°E</geoCoordinate>
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, ca 350 m a.s.l., 15.X.2015, N. Likhitrakarn leg., Colony no. NL151015-1 (THNHM).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="description">
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<paragraph pageId="0" pageNumber="103">Worker measurements.</paragraph>
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<paragraph pageId="0" pageNumber="103">Holotype: HL 0.53; HW 0.40; ML 0.69; PH 0.17; PL 0.18; SL 0.41; TL 2.28; CI 75; PI 91; SI 104. Paratype workers (n = 10): HL 0.50-0.53; HW 0.38-0.43; ML 0.66-0.73; PH 0.13-0.17; PL 0.17-0.18; SL 0.40-0.43; TL 2.24-2.41; CI 77-83; PI 90-91; SI 94-104.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="description">
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<paragraph pageId="0" pageNumber="103">Queen measurements.</paragraph>
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<paragraph pageId="0" pageNumber="103">(paratype). HL 0.92; HW 01.06; ML 1.55; PH 0.53; PL 0.53; SL 0.64; TL 5.31; CI 114; PI 100; SI 61.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="description">
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<paragraph pageId="0" pageNumber="103">Description of Worker.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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(Holotype and paratypes; Fig. 1). Head in full-face view elliptical, clearly longer than broad with slightly convex sides and almost straight posterior margin. Antennal scape short, extending beyond the mid-length of the head but not reaching the posterolateral corner of the head; antennal segment II slightly longer than
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<normalizedToken originalValue="III–VI">III-VI</normalizedToken>
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; the last (X) almost as long as VIII and IX combined and as long as II and III combined. Frontal carina thin and short, not extending beyond level of posterior margin of torulus. Clypeus short, with its anterior margin roundly convex, bearing 7 denticles. Mandible with an apical tooth large and curved, followed by a medium-sized subapical tooth and a series of 10-12 minute teeth on masticatory margin. Mesosoma in profile with pronotum strongly convex dorsally, demarcated from mesonotum by a shallow transverse groove; mesonotum convex, sloping gradually to metanotal groove; mesopleuron demarcated from metapleuron by a shallow groove. Propodeum in profile lower than promesonotum, with a weakly convex dorsal outline; propodeal junction angulate; declivity of propodeum widely and shallowly concave, encircled by a thin rim. Petiole in profile slightly longer than high, with a dorsal outline convex; seen from above relatively narrow with sides almost parallel; subpetiolar process present, its ventral outline convex, without angle or tooth; postpetiole slightly shorter than petiole but seen from above slightly broader than petiole; its node short, clearly shorter than high.
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</paragraph>
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<paragraph pageId="0" pageNumber="103">Head, antennal scapes, pronotum, petiole, postpetiole, gaster, femora and tibiae of legs entirely or extensively smooth and shiny. Antennal flagellum densely punctate; mesothorax and propodeum with dense punctures; metapleuron partly or extensively smooth.</paragraph>
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<paragraph pageId="0" pageNumber="103">Body with relatively sparse standing hairs mixed with sparse short hairs over surface; longest pronotal hair 0.10-0.13 mm long. Head, mesonotum, propodeum and gaster dark brown; pronotum, waist, antennae and legs reddish brown.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="description">
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<paragraph pageId="0" pageNumber="103">Description of Queen.</paragraph>
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<paragraph pageId="0" pageNumber="103">(Paratype, Fig. 2). Head in full-face view subrectangular, posteriorly narrow and gradually widening anteriorly, slightly shorter than broad, with sides weakly convex and posterior margin concave; upper frons weakly concave. Antennal scape flat, relatively short, about half as long as head, basally narrow, widening considerably apicad; flagellum of antenna missing (for this specimen). Frontal carina indistinct. Parafrontal ridge absent. Anterior clypeal margin concave, without denticles. Mandible half as long as head length, with a slender, inner margin that is convex while lateral margin weakly concave; masticatory margin without denticles. Mesosoma elongate; in profile, pronotum convex dorsally; mesonotum weakly concave; propodeal dorsum almost straight; seen from above pronotum and propodeum broader than mesonotum; propodeal junction low, roundly convex; propodeal declivity weakly convex, not encircled by a rim. Petiole longer than high, with its dorsal outline slightly elevated posteriorly, with petiole in profile posterodorsal corner bluntly angulate; seen from above petiole with a distinct longitudinal furrow running from anterior face to posterior face; subpetiolar process large, subtriangular, with its apex pointed downwards. Gaster large and elongate; first tergite narrower and shorter than second, its anterior slope weakly concave; second tergite largest; third as long as first; tip of gaster missing in this specimen. Legs relatively long and slender; femora and tibiae clavate.</paragraph>
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<caption pageId="0" pageNumber="103">
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<paragraph pageId="0" pageNumber="103">
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Figure 2.
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<taxonomicName class="Insecta" family="Formicidae" genus="Aenictus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Aenictus nuchiti" order="Hymenoptera" pageId="0" pageNumber="103" phylum="Arthropoda" rank="species" species="nuchiti">Aenictus nuchiti</taxonomicName>
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sp. n. (paratype, queen, THNHM-I-02613). A Body in profile B Body in dorsal view C Head in full-face view.
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="103">Entire body smooth and shiny, with relatively dense standing hairs; hairs slightly shorter on pronotum than on head, mandible and antennal scape; longest pronotal hair 0.08 mm long. Head dark brown; lateral and ventral faces of head and mandible reddish brown; scapes and legs yellowish brown. Mesosoma with ground colour reddish brown; lateral faces of pronotum and mesonotum, entire mesopleura and propodeal declivity dark brown. Petiole with ground colour reddish brown; lower portion of petiole, posterior slope of petiole and subpetiolar process dark brown; gaster with ground colour dark brown; lateral faces of second tergite reddish brown.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="etymology">
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<paragraph pageId="0" pageNumber="103">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="103">The species is named after Mr Supachai Nuchit (Royal Forest Department, Thailand) who kindly helped us with ant collecting at Pa Omkoi National Forest, Chiang Mai Province.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="distribution">
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<paragraph pageId="0" pageNumber="103">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="103">Northern Thailand (Chiang Mai Province).</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="comparative diagnosis">
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<paragraph pageId="0" pageNumber="103">Comparative diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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<taxonomicName class="Insecta" family="Formicidae" genus="Aenictus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Aenictus nuchiti" order="Hymenoptera" pageId="0" pageNumber="103" phylum="Arthropoda" rank="species" species="nuchiti">Aenictus nuchiti</taxonomicName>
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sp. n. is most similar to
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<taxonomicName lsidName="A. biroi" pageId="0" pageNumber="103" rank="species" species="biroi">A. biroi</taxonomicName>
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,
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<taxonomicName lsidName="A. camposi" pageId="0" pageNumber="103" rank="species" species="camposi">A. camposi</taxonomicName>
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,
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<taxonomicName lsidName="A. gutianshanensis" pageId="0" pageNumber="103" rank="species" species="gutianshanensis">A. gutianshanensis</taxonomicName>
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and
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<taxonomicName lsidName="A. vieti" pageId="0" pageNumber="103" rank="species" species="vieti">A. vieti</taxonomicName>
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in having dense punctures on the mesosoma and an angulate propodeal junction. However,
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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is much smaller than the latter four (TL 2.24-2.41 mm, HW 0.38-0.43 mm in
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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; TL> 2.6 mm, HW> 0.43 mm in the latter four). It has a short antennal scape that reaches only two-thirds the head length (in contrast, reaching or extending beyond the posterolateral corners of the head in the latter four). This species can be distinguished from
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<taxonomicName lsidName="A. gutianshanensis" pageId="0" pageNumber="103" rank="species" species="gutianshanensis">A. gutianshanensis</taxonomicName>
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and
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<taxonomicName lsidName="A. vieti" pageId="0" pageNumber="103" rank="species" species="vieti">A. vieti</taxonomicName>
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by the configuration of the subpetiolar process (ventral outline roundly convex and without anterior angle in
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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; ventral outline with anterior angle in
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<taxonomicName lsidName="A. biroi" pageId="0" pageNumber="103" rank="species" species="biroi">A. biroi</taxonomicName>
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,
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<taxonomicName lsidName="A. gutianshanensis" pageId="0" pageNumber="103" rank="species" species="gutianshanensis">A. gutianshanensis</taxonomicName>
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and
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<taxonomicName lsidName="A. vieti" pageId="0" pageNumber="103" rank="species" species="vieti">A. vieti</taxonomicName>
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).
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<taxonomicName class="Insecta" family="Formicidae" genus="Aenictus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Aenictus nuchiti" order="Hymenoptera" pageId="0" pageNumber="103" phylum="Arthropoda" rank="species" species="nuchiti">Aenictus nuchiti</taxonomicName>
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is similar to
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<taxonomicName lsidName="A. biroi" pageId="0" pageNumber="103" rank="species" species="biroi">A. biroi</taxonomicName>
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and
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<taxonomicName lsidName="A. camposi" pageId="0" pageNumber="103" rank="species" species="camposi">A. camposi</taxonomicName>
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in the unarmed subpetiolar process. In
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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, however, the body size is much smaller than that of
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<taxonomicName lsidName="A. biroi" pageId="0" pageNumber="103" rank="species" species="biroi">A. biroi</taxonomicName>
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and the head is clearly longer than broad in
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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(almost as long as broad in
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<taxonomicName lsidName="A. biroi" pageId="0" pageNumber="103" rank="species" species="biroi">A. biroi</taxonomicName>
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). The body colour is dark brown in
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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, whereas it is entirely yellow in
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<taxonomicName lsidName="A. camposi" pageId="0" pageNumber="103" rank="species" species="camposi">A. camposi</taxonomicName>
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. The propodeal declivity is broader and widely rounded above in
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<taxonomicName lsidName="A. nuchiti" pageId="0" pageNumber="103" rank="species" species="nuchiti">A. nuchiti</taxonomicName>
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but is narrow and tapers distinctly above in
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<taxonomicName lsidName="A. camposi" pageId="0" pageNumber="103" rank="species" species="camposi">A. camposi</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |