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<document ID-DOI="10.11646/zootaxa.5256.2.7" ID-ISSN="1175-5326" ID-Zenodo-Dep="7745567" ID-ZooBank="1EC38594-73DC-4FEC-9942-33145160566D" approvalRequired="2" approvalRequired_for_taxonomicNames="1" approvalRequired_for_textStreams="1" checkinTime="1679055901558" checkinUser="plazi" docAuthor="Novelo-Gutiérrez, Rodolfo &amp; Gómez-Anaya, José Antonio" docDate="2023" docId="FF4387BBB75EFFD837F8FE45FF2EFB1C" docLanguage="en" docName="zootaxa.5256.2.7.pdf" docOrigin="Zootaxa 5256 (2)" docSource="http://dx.doi.org/10.11646/zootaxa.5256.2.7" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Heteragrion azulum Dunkle 1989" docType="treatment" docVersion="2" lastPageNumber="200" masterDocId="037AFFC3B75FFFDD376FFFD6FFF9FFF4" masterDocTitle="The rediscovery of Heteragrion azulum Dunkle, 1989 with additional notes on the female (Odonata: Heteragrionidae)" masterLastPageNumber="200" masterPageNumber="195" pageNumber="196" updateTime="1679056278908" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title>The rediscovery of Heteragrion azulum Dunkle, 1989 with additional notes on the female (Odonata: Heteragrionidae)</mods:title>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Novelo-Gutiérrez, Rodolfo</mods:namePart>
<mods:affiliation>Instituto de Ecología, A. C. Red de Biodiversidad y Sistemática. Carretera antigua a Coatepec 351, El Haya 91073 Xalapa, Veracruz, MEXICO.</mods:affiliation>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Gómez-Anaya, José Antonio</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-4598-9663</mods:nameIdentifier>
<mods:affiliation>Instituto de Ecología, A. C. Red de Biodiversidad y Sistemática. Carretera antigua a Coatepec 351, El Haya 91073 Xalapa, Veracruz, MEXICO. &amp; antonio. gomez @ inecol. mx; http: // orcid. org / 0000 - 0002 - 4598 - 9663</mods:affiliation>
<mods:nameIdentifier type="email">antonio.gomez@inecol.mx</mods:nameIdentifier>
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<mods:title>Zootaxa</mods:title>
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<mods:date>2023</mods:date>
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<mods:number>2023-03-17</mods:number>
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<mods:number>5256</mods:number>
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<subSubSection box="[151,569,402,429]" pageId="1" pageNumber="196" type="nomenclature">
<paragraph blockId="1.[151,569,402,465]" box="[151,569,402,429]" pageId="1" pageNumber="196">
<heading bold="true" box="[151,569,402,429]" fontSize="11" level="1" pageId="1" pageNumber="196" reason="1">
<taxonomicName ID-CoL="3L73S" authority="Dunkle, 1989" authorityName="Dunkle" authorityYear="1989" box="[151,569,402,429]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="1" pageNumber="196" phylum="Arthropoda" rank="species" species="azulum">
<emphasis bold="true" box="[151,569,402,429]" pageId="1" pageNumber="196">
<emphasis bold="true" box="[151,397,402,429]" italics="true" pageId="1" pageNumber="196">Heteragrion azulum</emphasis>
<bibRefCitation author="Dunkle, S. W." box="[404,569,402,429]" pageId="1" pageNumber="196" pagination="195 - 197" refId="ref2322" refString="Dunkle, S. W. (1989) Heteragrion azulum spec. nov., a new damselfly from Mexico (Zygoptera: Megapodagrionidae). Odonatologica, 18 (2), 195 - 197." type="journal article" year="1989">Dunkle, 1989</bibRefCitation>
</emphasis>
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</heading>
</paragraph>
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<subSubSection box="[151,295,439,465]" pageId="1" pageNumber="196" type="description">
<paragraph blockId="1.[151,569,402,465]" box="[151,295,439,465]" pageId="1" pageNumber="196">
<figureCitation box="[151,258,439,465]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStartId-0="1.[151,250,1965,1989]" captionStartId-1="2.[151,250,1636,1660]" captionStartId-2="3.[151,250,1263,1287]" captionTargetBox-0="[151,1436,634,1942]" captionTargetBox-1="[151,1436,597,1613]" captionTargetBox-2="[229,1359,181,1239]" captionTargetId-0="figure-152@1.[151,1436,633,1942]" captionTargetId-1="figure-194@2.[151,1436,597,1613]" captionTargetId-2="figure-17@3.[229,1359,181,1239]" captionTargetPageId-0="1" captionTargetPageId-1="2" captionTargetPageId-2="3" captionText-0="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." captionText-1="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." captionText-2="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi-0="http://doi.org/10.5281/zenodo.7745569" figureDoi-1="http://doi.org/10.5281/zenodo.7745571" figureDoi-2="http://doi.org/10.5281/zenodo.7745575" httpUri-0="https://zenodo.org/record/7745569/files/figure.png" httpUri-1="https://zenodo.org/record/7745571/files/figure.png" httpUri-2="https://zenodo.org/record/7745575/files/figure.png" pageId="1" pageNumber="196">Figs. 13</figureCitation>
,
<figureCitation box="[269,295,439,465]" captionStart="FIGURE 4" captionStartId="3.[151,250,2012,2036]" captionTargetBox="[233,1354,1384,1988]" captionTargetId="figure-67@3.[233,1354,1384,1988]" captionTargetPageId="3" captionText="FIGURE 4. Heteragrion spp., dorsal view of female head: a) H. azulum; b) H. albifrons; c) H. alienum; d) H. tricellulare." figureDoi="http://doi.org/10.5281/zenodo.7745577" httpUri="https://zenodo.org/record/7745577/files/figure.png" pageId="1" pageNumber="196">4a</figureCitation>
</paragraph>
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<subSubSection pageId="1" pageNumber="196" type="materials_examined">
<paragraph blockId="1.[151,1437,510,611]" pageId="1" pageNumber="196">
<emphasis bold="true" box="[151,262,510,536]" pageId="1" pageNumber="196">Material.</emphasis>
6 ♁♁,
<materialsCitation collectingDate="2022-08-20" collectionCode="R" collectorName="Novelo, J. A. &amp; Gomez" country="Mexico" county="Municipality of Catemaco" elevation="402" latitude="18.255817" location="Tebanca-Miguel" longLatPrecision="1" longitude="-94.9586" municipality="Km" pageId="1" pageNumber="196" specimenCount="2" specimenCount-female="2" stateProvince="Veracruz de Ignacio de la Llave">
<specimenCount box="[354,412,511,537]" pageId="1" pageNumber="196" type="female">2♀♀</specimenCount>
.
<collectingCountry box="[427,541,511,537]" name="Mexico" pageId="1" pageNumber="196">MEXICO</collectingCountry>
.
<collectingRegion box="[553,721,511,537]" country="Mexico" name="Veracruz de Ignacio de la Llave" pageId="1" pageNumber="196">Veracruz State</collectingRegion>
;
<collectingCounty box="[736,1038,511,537]" pageId="1" pageNumber="196">Municipality of Catemaco</collectingCounty>
,
<collectingMunicipality box="[1051,1093,511,537]" pageId="1" pageNumber="196">Km</collectingMunicipality>
7.1 road
<location LSID="urn:lsid:plazi:treatment:FF4387BBB75EFFD837F8FE45FF2EFB1C:72356076B75EFFDC33D9FE29FA94FDED" box="[1206,1389,511,537]" country="Mexico" county="Municipality of Catemaco" latitude="18.255817" longLatPrecision="1" longitude="-94.9586" municipality="Km" name="Tebanca-Miguel" pageId="1" pageNumber="196" stateProvince="Veracruz de Ignacio de la Llave">Tebanca-Miguel</location>
Hi- dalgo, stream at
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<quantity box="[339,410,547,573]" metricMagnitude="2" metricUnit="m" metricValue="4.02" pageId="1" pageNumber="196" unit="m" value="402.0">402 m</quantity>
asl
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,
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,
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,
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<collectingDate box="[785,967,547,573]" pageId="1" pageNumber="196" value="2022-08-20">20 August 2022</collectingDate>
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,
<collectionCode box="[978,1000,547,573]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="1" pageNumber="196">R</collectionCode>
.
<collectorName box="[1012,1243,547,573]" pageId="1" pageNumber="196">Novelo, J.A. Gómez</collectorName>
leg.
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;
<materialsCitation collectingDate="2022-10-04" collectionCode="R" collectorName="Novelo, J. A. &amp; Gomez" country="Mexico" county="Municipality of Catemaco" elevation="402" latitude="18.255817" location="Tebanca-Miguel" longLatPrecision="1" longitude="-94.9586" municipality="Km" pageId="1" pageNumber="196" specimenCount="1" stateProvince="Veracruz de Ignacio de la Llave">
5♁♁; same data but
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<collectingDate box="[248,426,583,609]" pageId="1" pageNumber="196" value="2022-10-04">4 October 2022</collectingDate>
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;
<materialsCitation box="[437,896,582,611]" collectingDate="2022-10-05" collectionCode="R" collectorName="Novelo, J. A. &amp; Gomez" country="Mexico" county="Municipality of Catemaco" elevation="402" latitude="18.255817" location="Tebanca-Miguel" longLatPrecision="1" longitude="-94.9586" municipality="Km" pageId="1" pageNumber="196" specimenCount="2" specimenCount-female="2" stateProvince="Veracruz de Ignacio de la Llave">
<specimenCount box="[437,501,583,609]" pageId="1" pageNumber="196" type="female">2 ♀♀</specimenCount>
; 1♁ same data but
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<collectingDate box="[717,896,582,609]" pageId="1" pageNumber="196" value="2022-10-05">5 October 2022</collectingDate>
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.
</paragraph>
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<caption ID-DOI="http://doi.org/10.5281/zenodo.7745569" ID-Zenodo-Dep="7745569" box="[151,970,1965,1989]" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="1" pageNumber="196" startId="1.[151,250,1965,1989]" targetBox="[151,1436,634,1942]" targetPageId="1">
<paragraph blockId="1.[151,970,1965,1989]" box="[151,970,1965,1989]" pageId="1" pageNumber="196">
<emphasis bold="true" box="[151,275,1965,1989]" pageId="1" pageNumber="196">FIGURE 1.</emphasis>
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[281,486,1965,1989]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="1" pageNumber="196" phylum="Arthropoda" rank="species" species="azulum">
<emphasis box="[281,486,1965,1989]" italics="true" pageId="1" pageNumber="196">Heteragrion azulum</emphasis>
</taxonomicName>
habituses, left lateral view: a) Female; b) male.
</paragraph>
</caption>
<subSubSection lastPageId="5" lastPageNumber="200" pageId="2" pageNumber="197" type="description">
<paragraph blockId="2.[151,1437,150,573]" box="[199,365,150,176]" pageId="2" pageNumber="197">
<emphasis bold="true" box="[199,365,150,176]" pageId="2" pageNumber="197">Redescription</emphasis>
</paragraph>
<paragraph blockId="2.[151,1437,150,573]" pageId="2" pageNumber="197">
<emphasis bold="true" box="[199,286,187,213]" pageId="2" pageNumber="197">Female</emphasis>
(
<figureCitation box="[300,379,187,213]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="2" pageNumber="197">Fig. 1a</figureCitation>
).
<emphasis box="[400,461,187,213]" italics="true" pageId="2" pageNumber="197">Head</emphasis>
: Labrum and clypeus solid black metallic, frons grayish-violet, mandibles base grayishblue, genae pale violet (
<figureCitation box="[420,503,223,249]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="2" pageNumber="197">Fig. 2a</figureCitation>
). Clypeus and frons right-angled in profile view, but clypeal angle rounded. Vertex black, occiput mostly violet (
<figureCitation box="[478,561,259,285]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="2" pageNumber="197">Fig. 2b</figureCitation>
). Rear of head, maxillae, and labium creamy pale.
</paragraph>
<paragraph blockId="2.[151,1437,150,573]" pageId="2" pageNumber="197">
<emphasis box="[199,280,295,321]" italics="true" pageId="2" pageNumber="197">Thorax</emphasis>
: Anterior lobe of pronotum mostly pale, with anterior margin black; middle lobe creamy pale; posterior lobe black with a small, triangular spot at sides, its posterior margin evenly arcuate (
<figureCitation box="[1099,1183,331,357]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="2" pageNumber="197">Fig. 2b</figureCitation>
); intersternite straight, without a recurved carina, a little higher and broader than setifer (
<figureCitation box="[891,974,367,393]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="2" pageNumber="197">Fig. 2c</figureCitation>
). Middorsal carina and antealar crest and sinuses black (
<figureCitation box="[312,394,403,429]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="2" pageNumber="197">Fig. 2d</figureCitation>
). Mesepisternum mostly grayish-blue with a
<quantity box="[891,976,402,429]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="197" unit="mm" value="0.5">0.5 mm</quantity>
wide black stripe (
<figureCitation box="[1183,1261,403,429]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="2" pageNumber="197">Fig. 1a</figureCitation>
). Mesepimeron with a
<quantity box="[228,314,438,465]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="197" unit="mm" value="0.5">0.5 mm</quantity>
wide dark brown stripe just posterior to humeral suture, this stripe extends onto mesekatepisternum but thinner (
<figureCitation box="[287,366,475,501]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="2" pageNumber="197">Fig. 1a</figureCitation>
). Remainder of pterothorax grayish-blue. Coxa and trochanter grayish-blue (
<figureCitation box="[1221,1303,475,501]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="2" pageNumber="197">Fig. 2b</figureCitation>
), femur and tibia light brown, tarsi and spurs black. All wings with two postquadrangular cells, pterostigmata reddish-brown (
<figureCitation box="[159,239,547,573]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="2" pageNumber="197">Fig. 1a</figureCitation>
).
</paragraph>
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<paragraph blockId="2.[151,1436,1636,1696]" pageId="2" pageNumber="197">
<emphasis bold="true" box="[151,276,1636,1660]" pageId="2" pageNumber="197">FIGURE 2.</emphasis>
<emphasis box="[284,497,1636,1660]" italics="true" pageId="2" pageNumber="197">
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[284,494,1636,1660]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="2" pageNumber="197" phylum="Arthropoda" rank="species" species="azulum">Heteragrion azulum</taxonomicName>
,
</emphasis>
female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal.
</paragraph>
</caption>
<paragraph blockId="2.[151,1437,1743,2021]" pageId="2" pageNumber="197">
<emphasis box="[199,305,1743,1769]" italics="true" pageId="2" pageNumber="197">Abdomen</emphasis>
: S1 grayish-blue; S27 black dorsally, pale at sides, with posterobasal dark strikes on S36 (
<figureCitation box="[1341,1420,1743,1769]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="2" pageNumber="197">Fig. 1a</figureCitation>
); S8 mostly yellow with a dark, large, triangular spot along the middorsal full-length; S9 yellow with a thin, brown, longitudinal stripe to each side of midline on the basal 0.66; S10 yellow with a dark, triangular spot along the middorsal full-length (
<figureCitation box="[362,444,1851,1877]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="2" pageNumber="197">Fig. 3a</figureCitation>
). Cerci (
<figureCitation box="[542,609,1851,1877]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="2" pageNumber="197">Fig. 3</figureCitation>
) convex dorsally, flattened ventrally, elongate, yellowish-brown on basal half, dark brown on distal half, with abundant, small, dark brown spines and short stiff setae. Gonapophyses (
<figureCitation captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="2" pageNumber="197">Figs. 3bc</figureCitation>
) scarcely surpassing posterior margin of S10, lateral valvae light yellow, with the ventral margin convex bearing a row of 1416 strong, dark, downcurved spines, gonostyli dark brown (
<figureCitation box="[1014,1098,1959,1985]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="2" pageNumber="197">Fig. 3b</figureCitation>
); ventral valvae dark reddishbrown, in ventral view as shown in
<figureCitation box="[551,632,1995,2021]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="2" pageNumber="197">Fig. 3c</figureCitation>
.
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7745575" ID-Zenodo-Dep="7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="3" pageNumber="198" startId="3.[151,250,1263,1287]" targetBox="[229,1359,181,1239]" targetPageId="3">
<paragraph blockId="3.[151,1437,1263,1360]" pageId="3" pageNumber="198">
<emphasis bold="true" box="[151,274,1263,1287]" pageId="3" pageNumber="198">FIGURE 3.</emphasis>
<emphasis box="[280,493,1263,1287]" italics="true" pageId="3" pageNumber="198">
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[280,487,1263,1287]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="198" phylum="Arthropoda" rank="species" species="azulum">Heteragrion azulum</taxonomicName>
:
</emphasis>
ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e)
<emphasis box="[366,415,1335,1359]" italics="true" pageId="3" pageNumber="198">ídem</emphasis>
, dorsolateral view.
</paragraph>
</caption>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7745577" ID-Zenodo-Dep="7745577" box="[151,1390,2012,2036]" httpUri="https://zenodo.org/record/7745577/files/figure.png" pageId="3" pageNumber="198" startId="3.[151,250,2012,2036]" targetBox="[233,1354,1384,1988]" targetPageId="3">
<paragraph blockId="3.[151,1390,2012,2036]" box="[151,1390,2012,2036]" pageId="3" pageNumber="198">
<emphasis bold="true" box="[151,275,2012,2036]" pageId="3" pageNumber="198">FIGURE 4.</emphasis>
<taxonomicName box="[281,457,2012,2036]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="198" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis box="[281,406,2013,2036]" italics="true" pageId="3" pageNumber="198">Heteragrion</emphasis>
spp.
</taxonomicName>
, dorsal view of female head: a)
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[781,885,2012,2036]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="198" phylum="Arthropoda" rank="species" species="azulum">
<emphasis box="[781,885,2012,2036]" italics="true" pageId="3" pageNumber="198">H. azulum</emphasis>
</taxonomicName>
; b)
<taxonomicName authorityName="Ris" authorityYear="1918" box="[926,1048,2012,2036]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="198" phylum="Arthropoda" rank="species" species="albifrons">
<emphasis box="[926,1048,2012,2036]" italics="true" pageId="3" pageNumber="198">H. albifrons</emphasis>
</taxonomicName>
; c)
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[1087,1200,2012,2036]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="198" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[1087,1200,2012,2036]" italics="true" pageId="3" pageNumber="198">H. alienum</emphasis>
</taxonomicName>
; d)
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[1240,1384,2012,2036]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="3" pageNumber="198" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[1240,1384,2012,2036]" italics="true" pageId="3" pageNumber="198">H. tricellulare</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7745579" ID-Zenodo-Dep="7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="4" pageNumber="199" startId="4.[151,250,1945,1969]" targetBox="[167,1421,181,1921]" targetPageId="4">
<paragraph blockId="4.[151,1436,1945,2041]" pageId="4" pageNumber="199">
<emphasis bold="true" box="[151,277,1945,1969]" pageId="4" pageNumber="199">FIGURE 5.</emphasis>
<taxonomicName box="[286,464,1946,1969]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="199" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis box="[286,411,1946,1969]" italics="true" pageId="4" pageNumber="199">Heteragrion</emphasis>
spp.
</taxonomicName>
, females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration.
<taxonomicName authorityName="Ris" authorityYear="1918" box="[335,457,2017,2041]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="199" phylum="Arthropoda" rank="species" species="albifrons">
<emphasis box="[335,457,2017,2041]" italics="true" pageId="4" pageNumber="199">H. albifrons</emphasis>
</taxonomicName>
(a, d, g);
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[555,668,2017,2041]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="199" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[555,668,2017,2041]" italics="true" pageId="4" pageNumber="199">H. alienum</emphasis>
</taxonomicName>
(b, e, h);
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[766,910,2017,2041]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="4" pageNumber="199" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[766,910,2017,2041]" italics="true" pageId="4" pageNumber="199">H. tricellulare</emphasis>
</taxonomicName>
(c, f, i).
</paragraph>
</caption>
<paragraph blockId="5.[151,1437,150,1256]" box="[199,1386,150,177]" pageId="5" pageNumber="200">
<emphasis bold="true" box="[199,563,150,176]" pageId="5" pageNumber="200">Measurements (in mm) [N=2]:</emphasis>
TL 43.145.8, AL 35.037.5, FW 27.527.7, HW 27.328.0, Ce 0.70.9.
</paragraph>
</subSubSection>
<subSubSection pageId="5" pageNumber="200" type="discussion">
<paragraph blockId="5.[151,1437,150,1256]" pageId="5" pageNumber="200">
<emphasis bold="true" box="[199,315,186,212]" pageId="5" pageNumber="200">Remarks.</emphasis>
The females we collected are larger in all the rank of measurements than those described by
<bibRefCitation author="Dunkle, S. W." pageId="5" pageNumber="200" pagination="353 - 356" refId="ref2360" refString="Dunkle, S. W. (1993) The female of Heteragrion azulum Dunkle from Mexico (Zygoptera: Megapodagrionidae). Odonatologica, 22 (3), 353 - 356." type="journal article" year="1993">Dunkle (1993)</bibRefCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="5" pageNumber="200" type="diagnosis">
<paragraph blockId="5.[151,1437,150,1256]" pageId="5" pageNumber="200">
<emphasis bold="true" box="[199,314,258,284]" pageId="5" pageNumber="200">Diagnosis</emphasis>
.
<bibRefCitation author="Dunkle, S. W." box="[328,491,258,284]" pageId="5" pageNumber="200" pagination="353 - 356" refId="ref2360" refString="Dunkle, S. W. (1993) The female of Heteragrion azulum Dunkle from Mexico (Zygoptera: Megapodagrionidae). Odonatologica, 22 (3), 353 - 356." type="journal article" year="1993">Dunkle (1993)</bibRefCitation>
made a very complete description and diagnosis of the female of
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[1222,1337,258,284]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="azulum">
<emphasis box="[1222,1337,258,284]" italics="true" pageId="5" pageNumber="200">H. azulum</emphasis>
</taxonomicName>
comparing it with females of other Mexican species. Unfortunately, he did not provide any illustration at all. Here, we give an illustrated diagnosis of the female of
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[593,707,330,356]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="azulum">
<emphasis box="[593,707,330,356]" italics="true" pageId="5" pageNumber="200">H. azulum</emphasis>
</taxonomicName>
as follows (features of the other Mexican species in square brackets): two postquadrangular cells [three,
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[604,765,366,392]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[604,765,366,392]" italics="true" pageId="5" pageNumber="200">H. tricellulare</emphasis>
</taxonomicName>
]; labrum metallic black (
<figureCitation box="[1056,1138,366,392]" captionStart="FIGURE 4" captionStartId="3.[151,250,2012,2036]" captionTargetBox="[233,1354,1384,1988]" captionTargetId="figure-67@3.[233,1354,1384,1988]" captionTargetPageId="3" captionText="FIGURE 4. Heteragrion spp., dorsal view of female head: a) H. azulum; b) H. albifrons; c) H. alienum; d) H. tricellulare." figureDoi="http://doi.org/10.5281/zenodo.7745577" httpUri="https://zenodo.org/record/7745577/files/figure.png" pageId="5" pageNumber="200">Fig. 4a</figureCitation>
) [tan in
<taxonomicName authorityName="Ris" authorityYear="1918" box="[1238,1374,366,392]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="albifrons">
<emphasis box="[1238,1374,366,392]" italics="true" pageId="5" pageNumber="200">H. albifrons</emphasis>
</taxonomicName>
(
<figureCitation captionStart="FIGURE 4" captionStartId="3.[151,250,2012,2036]" captionTargetBox="[233,1354,1384,1988]" captionTargetId="figure-67@3.[233,1354,1384,1988]" captionTargetPageId="3" captionText="FIGURE 4. Heteragrion spp., dorsal view of female head: a) H. azulum; b) H. albifrons; c) H. alienum; d) H. tricellulare." figureDoi="http://doi.org/10.5281/zenodo.7745577" httpUri="https://zenodo.org/record/7745577/files/figure.png" pageId="5" pageNumber="200">Fig. 4b</figureCitation>
), brown with a yellow central spot in
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[598,722,402,428]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[598,722,402,428]" italics="true" pageId="5" pageNumber="200">H. alienum</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[774,932,402,428]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[774,932,402,428]" italics="true" pageId="5" pageNumber="200">H. tricellulare</emphasis>
</taxonomicName>
(
<figureCitation box="[947,1118,402,428]" captionStart="FIGURE 4" captionStartId="3.[151,250,2012,2036]" captionTargetBox="[233,1354,1384,1988]" captionTargetId="figure-67@3.[233,1354,1384,1988]" captionTargetPageId="3" captionText="FIGURE 4. Heteragrion spp., dorsal view of female head: a) H. azulum; b) H. albifrons; c) H. alienum; d) H. tricellulare." figureDoi="http://doi.org/10.5281/zenodo.7745577" httpUri="https://zenodo.org/record/7745577/files/figure.png" pageId="5" pageNumber="200">Figs. 4c and 4d</figureCitation>
, respectively]; pale colors in head and thorax grayish-blue [pale colors yellow in the other species]; intersternite straight, without recurved carina (
<figureCitation box="[159,241,474,500]" captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="5" pageNumber="200">Fig. 2c</figureCitation>
) [with recurved carina in all other species (
<figureCitation box="[735,857,474,501]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Figs. 5ac</figureCitation>
)]; antealar crest and sinuses completely black (
<figureCitation captionStart="FIGURE 2" captionStartId="2.[151,250,1636,1660]" captionTargetBox="[151,1436,597,1613]" captionTargetId="figure-194@2.[151,1436,597,1613]" captionTargetPageId="2" captionText="FIGURE 2. Heteragrion azulum, female: a) Head, frontal view; b) same, dorsal view; c) partial view of thorax showing the intersternite; d) partial view of pterothorax showing black antealar crest and sinuses, dorsal." figureDoi="http://doi.org/10.5281/zenodo.7745571" httpUri="https://zenodo.org/record/7745571/files/figure.png" pageId="5" pageNumber="200">Fig. 2c</figureCitation>
) [with a large pale spot to each side in all other species (
<figureCitation box="[823,945,510,537]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Figs. 5df</figureCitation>
)]; dorsum of S27 black, pale at sides (
<figureCitation captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="5" pageNumber="200">Fig. 1a</figureCitation>
) [reddish-brown, slightly paler at sides in the other species]; S8 yellow with a dark, large, triangular spot (
<figureCitation captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="5" pageNumber="200">Fig. 3a</figureCitation>
) [S8 reddish-brown with a black, longitudinal, middorsal line in
<taxonomicName authorityName="Ris" authorityYear="1918" box="[910,1045,582,608]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="albifrons">
<emphasis box="[910,1045,582,608]" italics="true" pageId="5" pageNumber="200">H. albifrons</emphasis>
</taxonomicName>
(
<figureCitation box="[1061,1142,582,609]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">
Fig.
<quantity box="[1113,1142,582,609]" metricMagnitude="-3" metricUnit="kg" metricValue="5.0" pageId="5" pageNumber="200" unit="g" value="5.0">5g</quantity>
</figureCitation>
) and
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[1206,1330,582,608]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[1206,1330,582,608]" italics="true" pageId="5" pageNumber="200">H. alienum</emphasis>
</taxonomicName>
, wider at base in this last species (
<figureCitation box="[426,510,618,645]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Fig. 5h</figureCitation>
), yellow with an irregular, brown spot and a black middorsal line in
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[1277,1436,618,644]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[1277,1436,618,644]" italics="true" pageId="5" pageNumber="200">H. tricellulare</emphasis>
</taxonomicName>
(
<figureCitation box="[159,238,654,681]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Fig. 5i</figureCitation>
)]; S9 yellow with a brown, longitudinal stripe to each side of midline (
<figureCitation box="[1056,1137,654,680]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="5" pageNumber="200">Fig. 3a</figureCitation>
) [S9 reddish-yellow more or less concolorous in
<taxonomicName authorityName="Ris" authorityYear="1918" box="[406,541,690,716]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="albifrons">
<emphasis box="[406,541,690,716]" italics="true" pageId="5" pageNumber="200">H. albifrons</emphasis>
</taxonomicName>
(
<figureCitation box="[557,640,690,717]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">
Fig.
<quantity box="[609,640,690,717]" metricMagnitude="-3" metricUnit="kg" metricValue="5.0" pageId="5" pageNumber="200" unit="g" value="5.0">5g</quantity>
</figureCitation>
); brown dorsally, yellow at sides in
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[1049,1174,690,716]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[1049,1174,690,716]" italics="true" pageId="5" pageNumber="200">H. alienum</emphasis>
</taxonomicName>
(
<figureCitation box="[1190,1274,690,717]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Fig. 5h</figureCitation>
); light yellow, unmarked in
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[297,456,726,752]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[297,456,726,752]" italics="true" pageId="5" pageNumber="200">H. tricellulare</emphasis>
</taxonomicName>
(
<figureCitation box="[470,546,726,753]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Fig. 5i</figureCitation>
)]; S10 yellow with a dark, triangular spot at middorsal full-length (
<figureCitation box="[1290,1369,726,752]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="5" pageNumber="200">Fig. 3a</figureCitation>
) [S10 yellowish-brown with a thin, middorsal, dark line in
<taxonomicName authorityName="Ris" authorityYear="1918" box="[742,877,762,788]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="albifrons">
<emphasis box="[742,877,762,788]" italics="true" pageId="5" pageNumber="200">H. albifrons</emphasis>
</taxonomicName>
(
<figureCitation box="[892,975,762,789]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">
Fig.
<quantity box="[945,975,762,789]" metricMagnitude="-3" metricUnit="kg" metricValue="5.0" pageId="5" pageNumber="200" unit="g" value="5.0">5g</quantity>
</figureCitation>
), reddish-yellow in
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[1200,1324,762,788]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[1200,1324,762,788]" italics="true" pageId="5" pageNumber="200">H. alienum</emphasis>
</taxonomicName>
(
<figureCitation box="[1340,1423,762,789]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Fig. 5h</figureCitation>
), yellow in
<taxonomicName authorityName="Calvert" authorityYear="1901" box="[263,422,798,824]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="tricellulare">
<emphasis box="[263,422,798,824]" italics="true" pageId="5" pageNumber="200">H. tricellulare</emphasis>
</taxonomicName>
(
<figureCitation box="[438,515,798,825]" captionStart="FIGURE 5" captionStartId="4.[151,250,1945,1969]" captionTargetBox="[167,1421,181,1921]" captionTargetId="figure-23@4.[167,1421,181,1921]" captionTargetPageId="4" captionText="FIGURE 5. Heteragrion spp., females: ac) Partial view of thorax showing intersternite, setifer, and posterior plate, lateral view; df) partial view of pterothorax showing the antealar crest and sinuses with large yellow spots, dorsal; gi) S810 showing dorsal coloration. H. albifrons (a, d, g); H. alienum (b, e, h); H. tricellulare (c, f, i)." figureDoi="http://doi.org/10.5281/zenodo.7745579" httpUri="https://zenodo.org/record/7745579/files/figure.png" pageId="5" pageNumber="200">Fig. 5i</figureCitation>
)].
</paragraph>
<paragraph blockId="5.[151,1437,150,1256]" pageId="5" pageNumber="200">
<emphasis bold="true" box="[199,676,834,861]" pageId="5" pageNumber="200">
Additional notes for males of
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[554,676,834,861]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="azulum">
<emphasis bold="true" box="[554,676,834,861]" italics="true" pageId="5" pageNumber="200">H. azulum</emphasis>
</taxonomicName>
</emphasis>
(
<figureCitation box="[692,785,834,860]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="5" pageNumber="200">Figs. 1b</figureCitation>
,
<figureCitation box="[798,857,834,860]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="5" pageNumber="200">3de</figureCitation>
). The male specimens we collected agree well with the Dunkles description of the
<typeStatus box="[503,601,870,896]" pageId="5" pageNumber="200">holotype</typeStatus>
(
<bibRefCitation author="Dunkle, S. W." box="[615,766,870,896]" pageId="5" pageNumber="200" pagination="195 - 197" refId="ref2322" refString="Dunkle, S. W. (1989) Heteragrion azulum spec. nov., a new damselfly from Mexico (Zygoptera: Megapodagrionidae). Odonatologica, 18 (2), 195 - 197." type="journal article" year="1989">Dunkle 1989</bibRefCitation>
). All males have the antealar crest and sinuses totally black. Here we provide some additional measurements (in mm) (N=6) [averages in brackets]: TL 4953 [50.2], AL 40.1 44.0 [41.9], FW 27.230.0 [28.3], HW 26.929.7 [28], Ce 1.01.1 [1.0]. Some high-quality photos of the males morphology are given too (
<figureCitation box="[457,547,978,1004]" captionStart="FIGURE 1" captionStartId="1.[151,250,1965,1989]" captionTargetBox="[151,1436,634,1942]" captionTargetId="figure-152@1.[151,1436,633,1942]" captionTargetPageId="1" captionText="FIGURE 1. Heteragrion azulum habituses, left lateral view: a) Female; b) male." figureDoi="http://doi.org/10.5281/zenodo.7745569" httpUri="https://zenodo.org/record/7745569/files/figure.png" pageId="5" pageNumber="200">Figs. 1b</figureCitation>
and
<figureCitation box="[602,660,978,1004]" captionStart="FIGURE 3" captionStartId="3.[151,250,1263,1287]" captionTargetBox="[229,1359,181,1239]" captionTargetId="figure-17@3.[229,1359,181,1239]" captionTargetPageId="3" captionText="FIGURE 3. Heteragrion azulum: ac, Female; de, male: a) S710 showing coloration, dorsal view; b) S810 showing coloration, gonapophyses, and cerci, lateral view; c) S910 showing gonapophyses and cerci, ventral view; d) S10 and caudal appendages, dorsal view; e) ídem, dorsolateral view." figureDoi="http://doi.org/10.5281/zenodo.7745575" httpUri="https://zenodo.org/record/7745575/files/figure.png" pageId="5" pageNumber="200">3de</figureCitation>
).
</paragraph>
<paragraph blockId="5.[151,1437,150,1256]" pageId="5" pageNumber="200">
<emphasis bold="true" box="[199,298,1014,1040]" pageId="5" pageNumber="200">Habitat.</emphasis>
Adults of
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[417,533,1014,1040]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="azulum">
<emphasis box="[417,533,1014,1040]" italics="true" pageId="5" pageNumber="200">H. azulum</emphasis>
</taxonomicName>
were found in a probably 3
<superScript attach="left" box="[846,860,1014,1028]" fontSize="6" pageId="5" pageNumber="200">rd</superScript>
order rocky stream, with a good coverage of riparian vegetation, although the adjacent areas have been altered for pasture lands. Individuals were collected perching on vertical twigs close to a big boulder five meters from the waters edge. Although
<bibRefCitation author="Dunkle, S. W." box="[1097,1261,1086,1112]" pageId="5" pageNumber="200" pagination="353 - 356" refId="ref2360" refString="Dunkle, S. W. (1993) The female of Heteragrion azulum Dunkle from Mexico (Zygoptera: Megapodagrionidae). Odonatologica, 22 (3), 353 - 356." type="journal article" year="1993">Dunkle (1993)</bibRefCitation>
speculated that perhaps
<taxonomicName authorityName="Dunkle" authorityYear="1989" box="[246,361,1122,1148]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="azulum">
<emphasis box="[246,361,1122,1148]" italics="true" pageId="5" pageNumber="200">H. azulum</emphasis>
</taxonomicName>
breeds on seepages, we did not see this habitat at any part of the stream. In the same stream we collected males and females of the common
<taxonomicName authorityName="Williamson" authorityYear="1919" box="[643,766,1158,1184]" class="Insecta" family="Megapodagrionidae" genus="Heteragrion" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="alienum">
<emphasis box="[643,766,1158,1184]" italics="true" pageId="5" pageNumber="200">H. alienum</emphasis>
</taxonomicName>
, as well as other odonates such as
<taxonomicName authority="Selys, 1868" authorityName="Selys" authorityYear="1868" box="[1149,1432,1158,1185]" class="Insecta" family="Polythoridae" genus="Cora" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="marina">
<emphasis box="[1149,1293,1159,1185]" italics="true" pageId="5" pageNumber="200">Cora marina</emphasis>
Selys, 1868
</taxonomicName>
,
<taxonomicName authority="Selys, 1886" authorityName="Selys" authorityYear="1886" box="[151,566,1194,1220]" class="Insecta" family="Platystictidae" genus="Palaemnema" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="desiderata">
<emphasis box="[151,423,1194,1220]" italics="true" pageId="5" pageNumber="200">Palaemnema desiderata</emphasis>
Selys, 1886
</taxonomicName>
,
<taxonomicName authority="Calvert, 1905" authorityName="Calvert" authorityYear="1905" box="[578,1039,1194,1221]" class="Insecta" family="Gomphidae" genus="Erpetogomphus" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="ophibolus">
<emphasis box="[578,874,1194,1220]" italics="true" pageId="5" pageNumber="200">Erpetogomphus ophibolus</emphasis>
Calvert, 1905
</taxonomicName>
, and
<taxonomicName authority="Calvert, 1898" authorityName="Calvert" authorityYear="1898" class="Insecta" family="Libellulidae" genus="Brechmorhoga" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="200" phylum="Arthropoda" rank="species" species="rapax">
<emphasis box="[1099,1338,1194,1220]" italics="true" pageId="5" pageNumber="200">Brechmorhoga rapax</emphasis>
Calvert, 1898
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>