364 lines
35 KiB
XML
364 lines
35 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.842.33609" ID-GBIF-Dataset="61d1cb94-3556-4b0d-95c6-02fff542f54c" ID-PMC="PMC6517370" ID-Pensoft-Pub="1313-2970-842-113" ID-PubMed="31130808" ID-ZBK="103E24CE9F0E4214954BC719F6EFE91D" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1313-2970-842-113" ModsDocOrigin="ZooKeys 842" ModsDocTitle="Two new species of the ant genus Acanthomyrmex Emery, 1893 (Hymenoptera, Formicidae, Myrmicinae) from Thailand" checkinTime="1557277109605" checkinUser="pensoft" docAuthor="Jaitrong, Weeyawat & Asanok, Lamthai" docDate="2019" docId="36BE872AB8E43D9F485A6622C7667319" docLanguage="en" docName="ZooKeys 842: 113-134" docOrigin="ZooKeys 842" docSource="http://dx.doi.org/10.3897/zookeys.842.33609" docTitle="Acanthomyrmex mizunoi Jaitrong & Asanok, sp. n." docType="treatment" docUuid="F5FCA88F-E507-420D-8FA1-84383C83ECDE" docUuidSource="ZooBank" docVersion="5" lastPageNumber="132" masterDocId="FFE1185B2C19FFB3FFA79707FFAACF4A" masterDocTitle="Two new species of the ant genus Acanthomyrmex Emery, 1893 (Hymenoptera, Formicidae, Myrmicinae) from Thailand" masterLastPageNumber="134" masterPageNumber="113" pageNumber="123" updateTime="1668167202799" updateUser="ExternalLinkService">
|
||
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo>
|
||
<mods:title>Two new species of the ant genus Acanthomyrmex Emery, 1893 (Hymenoptera, Formicidae, Myrmicinae) from Thailand</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Jaitrong, Weeyawat</mods:namePart>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Asanok, Lamthai</mods:namePart>
|
||
</mods:name>
|
||
<mods:typeOfResource>text</mods:typeOfResource>
|
||
<mods:relatedItem type="host">
|
||
<mods:titleInfo>
|
||
<mods:title>ZooKeys</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part>
|
||
<mods:date>2019</mods:date>
|
||
<mods:detail type="volume">
|
||
<mods:number>842</mods:number>
|
||
</mods:detail>
|
||
<mods:extent unit="page">
|
||
<mods:start>113</mods:start>
|
||
<mods:end>134</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:location>
|
||
<mods:url>http://dx.doi.org/10.3897/zookeys.842.33609</mods:url>
|
||
</mods:location>
|
||
<mods:classification>journal article</mods:classification>
|
||
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.842.33609</mods:identifier>
|
||
<mods:identifier type="Pensoft-Pub">1313-2970-842-113</mods:identifier>
|
||
<mods:identifier type="ZBK">103E24CE9F0E4214954BC719F6EFE91D</mods:identifier>
|
||
<mods:identifier type="ZooBank">103E24CE9F0E4214954BC719F6EFE91D</mods:identifier>
|
||
</mods:mods>
|
||
<treatment ID-GBIF-Taxon="157063286" LSID="urn:lsid:zoobank.org:act:F5FCA88F-E507-420D-8FA1-84383C83ECDE" httpUri="http://treatment.plazi.org/id/36BE872AB8E43D9F485A6622C7667319" lastPageId="19" lastPageNumber="132" pageId="10" pageNumber="123">
|
||
<subSubSection pageId="10" pageNumber="123" type="nomenclature">
|
||
<paragraph pageId="10" pageNumber="123">
|
||
<taxonomicName LSID="http://zoobank.org/F5FCA88F-E507-420D-8FA1-84383C83ECDE" authority="Jaitrong & Asanok" class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="10" pageNumber="123" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi Jaitrong & Asanok</taxonomicName>
|
||
<taxonomicNameLabel pageId="10" pageNumber="123">sp. n.</taxonomicNameLabel>
|
||
Figures 4, 5, 6
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="11" pageNumber="124" type="materials_examined">
|
||
<paragraph pageId="11" pageNumber="124">
|
||
<pageBreakToken pageId="11" pageNumber="124" start="start">Type</pageBreakToken>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="11" pageNumber="124">
|
||
Holotype major worker (THNHM-I-01197, THNHM), central Thailand, Nakhon Nayok Prov., Muang Dist., Ban Hin Tang,
|
||
<geoCoordinate direction="north" orientation="latitude" precision="1" value="14.40611">14.40611°N</geoCoordinate>
|
||
,
|
||
<geoCoordinate direction="east" orientation="longitude" precision="1" value="101.37139">101.37139°E</geoCoordinate>
|
||
, 22.X.2017, W. Jaitrong leg., colony no. WJT221017-12. Paratypes: 5 major workers (THNHM-I-01198, MHNG, SKYC, THNHM), 64 minor workers (THNHM-I-01199, MHNG, SKYC, THNHM, USNM) and 3 dealate queens (THNHM-I-01200, SKYC, THNHM), same data as holotype; 4 ergatoid queens (THNHM-I-00054, THNHM-I-00061, THNHM-I-00063, THNHM-I-00065, SKYC, THNHM), 8 minor workers (THNHM-I-00055, THNHM-I-00057 to THNHM-I-00060, THNHM-I-00062, THNHM-I-00064, THNHM-I-00066, SKYC, THNHM, USNM), and 1 male (THNHM-I-00056), NE Thailand, Nakhon Ratchasima Prov., Pak Chong Dist., dry evergreen forest, 31.V.2000, W. Jaitrong leg., colony no. WJT310500-1; 1 ergatoid queen (THNHM-I-0053, THNHM) and 1 male (AMK007, THNHM), NE Thailand, Nakhon Ratchasima Prov., Khao Yai N.P., hill evergreen forest, 30.V.2000, C. Bourmas leg.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="12" lastPageNumber="125" pageId="11" pageNumber="124" type="description">
|
||
<paragraph pageId="11" pageNumber="124">Measurements and indices.</paragraph>
|
||
<paragraph pageId="11" pageNumber="124">Holotype major: HL 2.67, HW 2.24, EL 0.23, SL 1.06, HFL 1.29, CI 84, EI 10, HFI 57, SI 47.</paragraph>
|
||
<paragraph pageId="11" pageNumber="124">Major workers (6 paratypes): HL 2.48-2.67, HW 2.05-2.28, EL 0.17-0.20, SL 0.96-1.02, HFL 1.22-1.35, CI 83-85, EI 8-9, HFI 56-60, SI 45-47.</paragraph>
|
||
<paragraph pageId="11" pageNumber="124">Minor workers (10 paratypes): HL 0.96-1.02, HW 1.02-1.09, EL 0.13-0.17, SL 0.79-0.86, HFL 0.96-1.02, CI 106-110, EI 12-16, HFI 91-97, SI 73-81.</paragraph>
|
||
<paragraph pageId="11" pageNumber="124">Dealate queens (3 paratypes): HL 1.78-1.82, HW 1.98-2.01, EL 0.23, SL 0.92-0.96, HFL 1.35-1.39, MNL 1.75-1.78, MSL 1.39-1.42, CI 109-111, EI 11-12, HFI 68-70, MNI 79-80, MSI 70-72, SI 47-48.</paragraph>
|
||
<paragraph pageId="12" pageNumber="125">
|
||
<pageBreakToken pageId="12" pageNumber="125" start="start">Ergatoid</pageBreakToken>
|
||
queen (4 paratypes): HL 2.18-2.24, HW 1.95-2.01, EL 0.20, SL 0.92-0.96, HFL 1.19-1.25, CI 89-91, EI 10, HFI 60-63, SI 47-48.
|
||
</paragraph>
|
||
<paragraph pageId="12" pageNumber="125">Male (paratype): HL 0.69, HW 0.86, EL0.30, SL 0.17, HFL 1.06, MNL 0.96, MSW 0.83, CI 124, EI 35, HFI 123, MNI 86, MSI 96, SI 19. Non-type (n = 5): HL 0.66-0.73, HW 0.86-0.89, EL 0.26-0.30, SL 0.17-0.20, HFL 1.0-1.06, MNL 0.96-0.99, MSW 0.86-0.89, CI 123-130, EI 30-33, HFI 115-119, MNI 90, MSI 96-100, SI 19-22.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="16" lastPageNumber="129" pageId="12" pageNumber="125" type="description">
|
||
<paragraph pageId="12" pageNumber="125">Description.</paragraph>
|
||
<paragraph pageId="12" pageNumber="125">
|
||
Major worker (Fig. 4
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
). Head, in full-face view, clearly longer than broad, lateral cephalic margins straight, posterior cephalic corners rounded, and posterior cephalic margin shallowly concave medially; cephalic median furrow well developed, extending anteriad to frontal area; dorsum of head entirely with dense erect hairs; mandible massive, subtriangular and superficially reticulate with smooth and shiny interspaces; masticatory margin without distinct denticles; basal margin weakly concave; mandible with few hairs along its masticatory margin and outer margin; median portion of anterior clypeal margin weakly produced anteriad, produced portion with anterior margin weakly concave at middle; clypeus lacking medial and lateral setae; median portion of clypeus smooth and shiny; frontal lobe poorly developed, partly concealing antennal socket; frontal carina conspicuous, reaching midlength of head; antennal scrobe deep and conspicuous, with 8-10 longitudinal ridges running from lateral portion of clypeus; eye relatively small, weakly convex, located at anterior
|
||
<normalizedToken originalValue="¼">1/4</normalizedToken>
|
||
of head length laterally; antenna 12-segmented with 3-segmented club; antennal scape thin and short, not extending beyond midlength of head; scape with more than 15 long erect hairs. Mesosoma short and stout; pronotal spine absent; mesonotum weakly convex, with sparse erect hairs; promesonotal suture present as a weak groove dorsally; metanotal groove present as inconspicuous, broad impression just in front of base of propodeal spine; propodeal spine in profile relatively broad basally and sharp apically, largely smooth and shiny, without erect hairs and decumbent hairs; dorsum of each femur without erect hairs; legs smooth and shiny. Petiole in profile with long anterior pedicel, usually a pair of posterolateral hairs present; petiolar node, in profile, subtriangular with blunt angle dorsally; posterior face of petiolar node with 2 or 3 pairs of erect hairs; in posterior view dorsum of petiolar node with a pair of blunt angles, dorsal outline between angles strongly concave; postpetiole clearly shorter than high, in dorsal view rectangular with parallel sides and in profile with convex dorsal outline; dorsum of postpetiole with sparse erect hairs; postpetiole entirely rugose. Gaster smaller than head; gastral tergite I circular, smooth and shiny and with dense erect hairs. Body sculpture basically as in Figure 4
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
. Head, mesosoma, petiole, and postpetiole reddish brown; gaster darker than head, mesosoma and waist often black; mandible and legs reddish brown but paler than head.
|
||
</paragraph>
|
||
<caption pageId="12" pageNumber="125">
|
||
<paragraph pageId="12" pageNumber="125">
|
||
Figure 4.
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="12" pageNumber="125" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi</taxonomicName>
|
||
sp. n. Holotype major worker, THNHM-I-01197
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
paratype minor worker, THNHM-I-01199 A, D body in profile B, E head in full-face view C, F dorsal view of body. Photos by Mr Yudthana Samung (
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
) or Weeyawat Jaitrong (
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph lastPageId="14" lastPageNumber="127" pageId="12" pageNumber="125">
|
||
Minor worker (Fig. 4
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
). Head, in full-face view, slightly shorter than broad, with slightly convex sides and strongly concave posterior margin; head entirely coarsely punctorecticulate, punctures large, 0.07-0.13 mm in diameter; dorsum of head entirely with dense erect hairs; mandible massive, subtriangular and superficially reticulate with smooth and shiny interspaces; masticatory margin with few ill-defined denticles; basal margin almost straight; mandible with few hairs along its masticatory margin
|
||
<pageBreakToken pageId="13" pageNumber="126" start="start">and</pageBreakToken>
|
||
outer margin; anterior clypeal margin armed with several teeth, with conspicuous median and lateral setae; median portion of clypeus with two distinct longitudinal ridges; frontal lobe poorly developed, partly concealing antennal socket; frontal carina conspicuous, reaching 2/3 of head length; antennal scrobe deep and conspicuous; compound eye relatively small, moderately protruding, located anterior to mid-length
|
||
<pageBreakToken pageId="14" pageNumber="127" start="start">of</pageBreakToken>
|
||
head; antenna 12-segmented with 3-segmented club; antennal scape slender, when laid backward surpassing posterolateral corner of head by 1.2 times width of antennal scape; antenna with dense long erect hairs. Mesosoma in profile relatively stout, its dorsum sparsely with erect hairs; pronotum with a pair of straight spines, which are clearly shorter than propodeal spine; promesonotum convex and sloping gradually to metanotal groove; promesonotal suture absent dorsally; metanotal groove present as inconspicuous broad impression just anterior to base of propodeal spine; propodeal spine in profile relatively long and slender, gradually down-curved, largely smooth and shiny, without erect hairs and decumbent hairs; all femora smooth and shiny, dorsally without erect hairs. Petiole in profile with long anterior pedicel; petiolar node in profile moderately to strongly raised, with relatively angulate apex, in posterior view with strong concavity between acute lateral sharp spines or angles; posterior face of petiolar node with a pair of erect hairs; postpetiole rectangular, almost as long as high, in dorsal view with parallel sides and in profile with straight dorsal outline; postpetiole entirely rugose, its dorsum with sparse erect hairs. First gastral tergite suboval, smooth and shiny and with less than 10 erect hairs around anterior portion. Body sculpture basically as in Figure 4
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
. Body entirely yellowish brown to reddish brown, gaster darker than head and mesosoma; mandible, antenna and legs yellowish brown to reddish brown but paler than head.
|
||
</paragraph>
|
||
<paragraph lastPageId="16" lastPageNumber="129" pageId="14" pageNumber="127">
|
||
Dealate queen (Fig. 5
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
). Head, in full-face view, subrectangular, shorter than broad, slightly broader posteriorly, with concave posterior margin; cephalic median furrow well developed, extending anteriad to frontal area; dorsum and lateral face of head foveate with smooth and shiny interspaces; dorsum of head entirely with dense erect hairs; mandible massive, subtriangular and superficially reticulate with smooth and shiny interspaces; masticatory margin straight with 3 or 4 small denticles near basal angle; basal margin weakly concave without denticles; median portion of anterior clypeal margin weakly produced anteriad, anterior margin of the produced portion concave at middle, with medial seta; median portion of clypeus smooth and shiny; frontal lobe poorly developed, partly concealing antennal socket; frontal carina conspicuous, reaching 2/3 of head length; antennal scrobe deep and conspicuous; eye relatively large, convex, located anterior to midlength of head; ocelli present, median ocellus, in full-face view, almost as long as lateral ocelli and almost located at level of posterior margin of eye; antenna 12-segmented with 3-segmented club; antennal scape thin and short, when laid backward surpassing midlength of head by 2.5 times width of antennal scape; scape with sparse long erect hairs. Mesosoma enlarged and high, its dorsum with erect hairs; pronotum narrow, without spine; promesonotal suture distinct; scutellum in profile with strongly convex dorsal outline, in dorsal view large and subtrapezoidal; mesoscutellum in dorsal view subrectangular with posterior margin weakly concave, demarcated from mesoscutum by deep groove, mesoscutellum protruding posteriorly and overhanging narrowed metanotum; propodeal spine in profile relatively broad basally and weakly down-curved, smooth and shiny, without erect hairs and decumbent hairs; dorsum of each femur without erect hairs; legs smooth and shiny. Petiole in profile with long anterior pedicel, 1 or 2 pairs of posterolateral
|
||
<pageBreakToken pageId="15" pageNumber="128" start="start">hairs</pageBreakToken>
|
||
present; petiolar node in profile subtriangular with blunt angle dorsally; posterior face of petiolar node with 2 or 3 pairs of erect hairs; in posterior view dorsum of petiolar node with a pair of blunt angles, dorsal outline between angles strongly concave; postpetiole clearly shorter than high, in dorsal view rectangular with parallel sides and
|
||
<pageBreakToken pageId="16" pageNumber="129" start="start">in</pageBreakToken>
|
||
profile with convex dorsal outline; dorsum of postpetiole with sparse erect hairs; postpetiole entirely rugose. First gastral tergite oval, smooth and shiny, with dense erect hairs. Body sculpture basically as in Figure 5
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
. Head, mesosoma, petiole, and pospetiole reddish brown to dark brown; gaster darker than head and mesosoma, often black; mandible and legs reddish brown, always paler than head.
|
||
</paragraph>
|
||
<caption pageId="16" pageNumber="129">
|
||
<paragraph pageId="16" pageNumber="129">
|
||
Figure 5.
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="16" pageNumber="129" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi</taxonomicName>
|
||
sp. n.
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
paratype dealate queen, THNHM-I-01200
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
paratype ergatoid queen, THNHM-I-00053 A, D body in profile B, E head in full-face view C, F dorsal view of body. Photos by Mr Yudthana Samung (
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
) or Weeyawat Jaitrong (
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="16" pageNumber="129">
|
||
Ergatoid queen (Fig. 5
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
). Apterous. Similar to the major worker in structure, sculpture, coloration and pilosity, with the following conditions that should be noted: relatively smaller (HW 1.95-2.01 mm in ergatoid queen, 2.05-2.28 mm in major worker); median ocellus present; lateral ocelli absent; body colour paler than in major worker. Body sculpture basically as in Figure 5
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="16" pageNumber="129">
|
||
Male (Fig. 6
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
). Body dark brown, but apical part of antenna, legs, and gaster reddish brown; wings light brown. Head, in full-face view, broadened-subpentagonal, posterior margin almost straight; anterolateral part of head in which compound eye is located well produced laterally; mandible subtriangular, masticatory margin with large apical tooth, followed by 5 teeth including basal tooth; anterior clypeal margin roundly convex; frontal lobe, frontal carina and antennal scrobe absent; ocelli present, with diameter less than distance between them; median ocellus, in full-face view, located slightly behind level of posterior margin of eye and slightly larger than lateral ocelli; antenna 13-segmented, without club; antennal scape short, when laid backward not reaching level of posterior margin of eye; antennal segment II very short; III much longer than broad and longer than each of segments
|
||
<normalizedToken originalValue="IV–X">IV-X</normalizedToken>
|
||
; IX narrower and shorter than VIII and X. Mesosoma short and high; pronotal spine absent; mesoscutellum in profile strongly raised posterodorsally, in dorsal view with straight posterior margin, demarcated from mesoscutum by deep and broad groove; mesoscutellum strongly convex; posterolateral part of propodeal dorsum in profile forming a blunt angle. Petiole, in profile, with long anterior pedicel; petiolar node in profile very low and bluntly raised; postpetiole almost as long as high and its dorsal outline convex. Gaster relatively small and oval. Legs relatively long, smooth and shiny. Body sculpture basically as in Figure 6
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
<caption pageId="16" pageNumber="129">
|
||
<paragraph pageId="16" pageNumber="129">
|
||
Figure 6.
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="16" pageNumber="129" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi</taxonomicName>
|
||
sp. n. (paratype male, THNHM-I-00056) A body in profile B head in full-face view C dorsal view of body. Photos by Mr Yudthana Samung.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="16" pageNumber="129" type="type material">
|
||
<paragraph pageId="16" pageNumber="129">Non-type material examined.</paragraph>
|
||
<paragraph pageId="16" pageNumber="129">
|
||
N Thailand, Chiang Rai Prov., Huai Pong Coffee Plantation,
|
||
<geoCoordinate direction="north" orientation="latitude" precision="1" value="19.08917">19.08917°N</geoCoordinate>
|
||
,
|
||
<geoCoordinate direction="east" orientation="longitude" precision="1" value="99.3625">99.36250°E</geoCoordinate>
|
||
, 31.VIII.2016, R. Mizuno leg., colony no. RM-65 (10 minor workers, 4 ergatoid queens, 4 males) (THNHM); NE Thailand, Nakhon Ratchasima Prov., Pak Chong Dist., Hill Evergreen Forest, 30.V.2000, C. Boumas leg., general collection (1 male) (THNHM); central Thailand, Nakhon Nayok Prov., Muang Dist., Ban Hin Tang,
|
||
<geoCoordinate direction="north" orientation="latitude" precision="1" value="14.40611">14.40611°N</geoCoordinate>
|
||
,
|
||
<geoCoordinate direction="east" orientation="longitude" precision="1" value="101.37139">101.37139°E</geoCoordinate>
|
||
, 22.X.2017, W. Jaitrong leg., colony no. WJT221017-8 (1 major worker and 1 major worker) (THNHM); central Thailand, Nakhon Nayok Prov., Muang Nakhon Nayok, Ban Hin Tang [Ban in Tang], 70 m a.s.l., 7.VII.2018, W. Jaitrong leg., colony no. WJT070718-10 (1 male); central Thailand, Nakhon Nayok Prov., Muang Dist., Hill evergreen forest, 8.VII.2018, W. Jaitrong leg., colony no. WJT080718-3 (6 minor workers, 4 major workers, 1 dealate queen, 1 male) (SKYC, THNHM).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="17" lastPageNumber="130" pageId="16" pageNumber="129" type="bionomics">
|
||
<paragraph pageId="16" pageNumber="129">Bionomics.</paragraph>
|
||
<paragraph lastPageId="17" lastPageNumber="130" pageId="16" pageNumber="129">
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="16" pageNumber="129" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi</taxonomicName>
|
||
inhabits highlands and nests in soil. The type series and non-types were collected from Nakhon Nayok and Nakhon Ratchasima
|
||
<pageBreakToken pageId="17" pageNumber="130" start="start">Provinces</pageBreakToken>
|
||
in a primary hill evergreen forest (ca 800 m a.s.l.). A colony (Colony no. RM-65) from the Chiang Rai Province, northern Thailand was collected in a coffee plantation (ca 900 m a.s.l.).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="17" pageNumber="130" type="etymology">
|
||
<paragraph pageId="17" pageNumber="130">Etymology.</paragraph>
|
||
<paragraph pageId="17" pageNumber="130">The specific name is dedicated to Mr Riou Mizuno (Kagawa University, Japan), who confirmed the ergatoid queen of this new species and donated to us the specimens collected from the Chiang Rai Province.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="18" pageNumber="131" type="distribution">
|
||
<paragraph pageId="18" pageNumber="131">
|
||
<pageBreakToken pageId="18" pageNumber="131" start="start">Distribution</pageBreakToken>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="18" pageNumber="131">Thailand (Chiang Rai, Nakhon Nayok and Nakhon Ratchasima Provinces).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="19" lastPageNumber="132" pageId="18" pageNumber="131" type="remarks">
|
||
<paragraph pageId="18" pageNumber="131">Remarks.</paragraph>
|
||
<paragraph pageId="18" pageNumber="131">
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="18" pageNumber="131" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi</taxonomicName>
|
||
can be distinguished from all other species in
|
||
<taxonomicName lsidName="A. luciolae" pageId="18" pageNumber="131" rank="species" species="luciolae">A. luciolae</taxonomicName>
|
||
group by the following combination of characters: 1) major and minor workers having reddish brown to dark brown body; 2) in major worker, anterior dorsum of head lacking rugae; 3) major worker with sparse shallow foveae on dorsum of head; 4) head with dense erect hairs in both castes; 5) major worker without erect hairs on dorsum of each femur; and 6) minor worker with fewer than 10 erect hairs around anterior portion of first gastral tergite. This species is most similar to
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
. However, it is easily distinguishable from the latter by the following characteristics: 1) in the major worker, anterior dorsum of head lacking rugae in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(rugulose in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); 2) postpetiole clearly shorter than high in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(almost as long as high, with straight dorsal outline in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); 3) first gastral tergite with very short appressed hairs in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(without very short appressed hairs in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); 4) dorsal and lateral faces of femora without hairs in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(with erect hairs in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); 5) in the minor worker, first gastral tergite without or with 1-4 erect hairs in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(with dense erect hairs in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); 6) in the ergatoid queen, mesoscutellum not protruding posteriorly in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(protruding posteriorly and overhanging narrow metanotum in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); 7) in the male, mesopleuron almost smooth in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(strongly sculptured in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
); and 8) postpetiole in profile clearly shorter than high in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(as long as high and cylindrical in
|
||
<taxonomicName lsidName="A. malikuli" pageId="18" pageNumber="131" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
).
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex mizunoi" order="Hymenoptera" pageId="18" pageNumber="131" phylum="Arthropoda" rank="species" species="mizunoi">Acanthomyrmex mizunoi</taxonomicName>
|
||
is also similar to
|
||
<taxonomicName lsidName="A. crassipinus" pageId="18" pageNumber="131" rank="species" species="crassipinus">A. crassipinus</taxonomicName>
|
||
Wheeler, 1930 in terms of the general appearance of the minor worker. After careful examination of the holotype and paratype workers of
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
with non-type workers of
|
||
<taxonomicName lsidName="A. crassispinus" pageId="18" pageNumber="131" rank="species" species="crassispinus">A. crassispinus</taxonomicName>
|
||
from Taiwan, Orchid Island (Fig. 7), 13.III.2017, collected by P.C. Hsu, we concluded that
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
can be easily distinguished from the latter by the following characteristics: 1) major worker with dense erect hairs on the head and first gastral tergite in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(completely without hairs in
|
||
<taxonomicName lsidName="A. crassipinus" pageId="18" pageNumber="131" rank="species" species="crassipinus">A. crassipinus</taxonomicName>
|
||
); 2) propodeal spine thin and cylindrical in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(flat and broad at the base in
|
||
<taxonomicName lsidName="A. crassipinus" pageId="18" pageNumber="131" rank="species" species="crassipinus">A. crassipinus</taxonomicName>
|
||
); 3) minor worker having a petiole and postpetiole with sparse erect hairs in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(without hairs in
|
||
<taxonomicName lsidName="A. crassipinus" pageId="18" pageNumber="131" rank="species" species="crassipinus">A. crassipinus</taxonomicName>
|
||
); and 4) first gastral tergite with 1-4 erect hairs in
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
(without hairs in
|
||
<taxonomicName lsidName="A. crassipinus" pageId="18" pageNumber="131" rank="species" species="crassipinus">A. crassipinus</taxonomicName>
|
||
). A specimen (CASENT0101994ANTWEB; images available on Antweb), collected from Khao Yai National Park, Thailand, has been identified as
|
||
<taxonomicName lsidName="A. crassispinus" pageId="18" pageNumber="131" rank="species" species="crassispinus">A. crassispinus</taxonomicName>
|
||
. Images of this specimen agree well with the minor worker of
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
in having dense erect hairs on the head, with sparse erect hairs on the petiole and postpetiole. Thus, this specimen (CASENT0101994ANTWEB) should be reidentified as a non-type of our new species,
|
||
<taxonomicName lsidName="A. mizunoi" pageId="18" pageNumber="131" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
. The new species can be easily distinguished from
|
||
<taxonomicName lsidName="A. padanensis" pageId="18" pageNumber="131" rank="species" species="padanensis">A. padanensis</taxonomicName>
|
||
by the following characteristics: 1) in major worker, mid anterior margin of clypeus shallowly concave (anterior clypeal margin weakly convex in
|
||
<taxonomicName lsidName="A. padanensis" pageId="18" pageNumber="131" rank="species" species="padanensis">A. padanensis</taxonomicName>
|
||
); 2) in major worker, head with denes erect hairs (without hairs in
|
||
<taxonomicName lsidName="A. padanensis" pageId="18" pageNumber="131" rank="species" species="padanensis">A. padanensis</taxonomicName>
|
||
); and 3) in ergatoid queen, without pronotal spine, general shape as in major worker (with pronotal spine, general shape as in minor worker in
|
||
<taxonomicName lsidName="A. padanensis" pageId="18" pageNumber="131" rank="species" species="padanensis">A. padanensis</taxonomicName>
|
||
).
|
||
</paragraph>
|
||
<caption pageId="18" pageNumber="131">
|
||
<paragraph pageId="18" pageNumber="131">
|
||
Figure 7.
|
||
<taxonomicName class="Insecta" family="Formicidae" genus="Acanthomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthomyrmex crassispinus" order="Hymenoptera" pageId="18" pageNumber="131" phylum="Arthropoda" rank="species" species="crassispinus">Acanthomyrmex crassispinus</taxonomicName>
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
Non-type major worker (THNHM-I-05475)
|
||
<normalizedToken originalValue="D–F">D-F</normalizedToken>
|
||
Non-type minor worker (THNHM-I-05476) A, D body in profile B, E head in full-face view C, F dorsal view of body. Photos by Mr Yudthana Samung.
|
||
</paragraph>
|
||
</caption>
|
||
<subSection pageId="19" pageNumber="132" type="key to thai species based on major worker">
|
||
<paragraph pageId="19" pageNumber="132">
|
||
<pageBreakToken pageId="19" pageNumber="132" start="start">Key</pageBreakToken>
|
||
to Thai species based on major worker
|
||
</paragraph>
|
||
<paragraph pageId="19" pageNumber="132">
|
||
<table pageId="19" pageNumber="132">
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">2</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. thailandensis" pageId="19" pageNumber="132" rank="species" species="thailandensis">A. thailandensis</taxonomicName>
|
||
</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">HW</td>
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. ferox" pageId="19" pageNumber="132" rank="species" species="ferox">A. ferox</taxonomicName>
|
||
</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">HW</td>
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">3</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. malikuli" pageId="19" pageNumber="132" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
sp. n.
|
||
</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. mizunoi" pageId="19" pageNumber="132" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
sp. n.
|
||
</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
</subSection>
|
||
<subSection pageId="19" pageNumber="132" type="key to thai species based on minor worker">
|
||
<paragraph pageId="19" pageNumber="132">Key to Thai species based on minor worker</paragraph>
|
||
<paragraph pageId="19" pageNumber="132">
|
||
<table pageId="19" pageNumber="132">
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. ferox" pageId="19" pageNumber="132" rank="species" species="ferox">A. ferox</taxonomicName>
|
||
</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">2</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. mizunoi" pageId="19" pageNumber="132" rank="species" species="mizunoi">A. mizunoi</taxonomicName>
|
||
sp. n.
|
||
</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">3</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. thailandensis" pageId="19" pageNumber="132" rank="species" species="thailandensis">A. thailandensis</taxonomicName>
|
||
</td>
|
||
</tr>
|
||
<tr pageId="19" pageNumber="132">
|
||
<td colspan="1" pageId="19" pageNumber="132" rowspan="1">
|
||
<taxonomicName lsidName="A. malikuli" pageId="19" pageNumber="132" rank="species" species="malikuli">A. malikuli</taxonomicName>
|
||
sp. n.
|
||
</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
</subSection>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |