411 lines
38 KiB
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411 lines
38 KiB
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.902.46844" ID-GBIF-Dataset="d4ed6281-9d8a-4055-bbe0-a1b996512927" ID-PMC="PMC6971129" ID-Pensoft-Pub="1313-2970-902-17" ID-Pensoft-UUID="F4535196A3EF5764B53961A797893D78" ID-PubMed="31988597" ID-ZooBank="5086252D43AC42149D740987C59AB555" ModsDocID="1313-2970-902-17" checkinTime="1578966016174" checkinUser="pensoft" docAuthor="Auychinda, Chonlakran, Sartori, Michel & Boonsoong, Boonsatien" docDate="2020" docId="85D690061E6F57A2A1B86602C0042EE5" docLanguage="en" docName="ZooKeys 902: 17-36" docOrigin="ZooKeys 902" docSource="http://dx.doi.org/10.3897/zookeys.902.46844" docTitle="Vietnamella maculosa Auychinda & Sartori & Boonsoong 2020, sp. nov." docType="treatment" docUuid="E75B83EC-A077-4533-83EC-224D5A26E1DA" docUuidSource="ZooBank" docVersion="6" id="F4535196A3EF5764B53961A797893D78" lastPageNumber="17" masterDocId="F4535196A3EF5764B53961A797893D78" masterDocTitle="Vietnamellidae (Insecta, Ephemeroptera) of Thailand" masterLastPageNumber="36" masterPageNumber="17" pageNumber="17" updateTime="1668168290480" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Vietnamellidae (Insecta, Ephemeroptera) of Thailand</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Auychinda, Chonlakran</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Sartori, Michel</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Boonsoong, Boonsatien</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>902</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>17</mods:start>
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<mods:end>36</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.902.46844</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.902.46844</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-902-17</mods:identifier>
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<mods:identifier type="ZooBank">5086252D43AC42149D740987C59AB555</mods:identifier>
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<mods:identifier type="Pensoft-UUID">F4535196A3EF5764B53961A797893D78</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="161677755" LSID="urn:lsid:zoobank.org:act:E75B83EC-A077-4533-83EC-224D5A26E1DA" httpUri="http://treatment.plazi.org/id/85D690061E6F57A2A1B86602C0042EE5" lastPageNumber="17" pageId="0" pageNumber="17">
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<subSubSection pageId="0" pageNumber="17" type="nomenclature">
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<paragraph pageId="0" pageNumber="17">
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<taxonomicName LSID="85D69006-1E6F-57A2-A1B8-6602C0042EE5" authority="Auychinda & Sartori & Boonsoong, 2020" authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa" status="sp. nov.">Vietnamella maculosa</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="17">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Vietnamella spp. A Vietnamella maculosa sp. nov., habitus in dorsal view B Vietnamella sp. B, habitus in dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.902.46844.figure1" httpUri="https://binary.pensoft.net/fig/371638" pageId="0" pageNumber="17">Figs 1A</figureCitation>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">, 2A-G</figureCitation>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">, 3A-L</figureCitation>
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Vietnamella spp. Vietnamella maculosa sp. nov. (A, D, G, J): A outer projection on head (arrow) D inner and outer projections on head G, J tubercle on tergite VII and X; Vietnamella sp. B (B, E, H, K): B outer projection on head (arrow) E inner and outer projections with serration on head H, K tubercles on tergite VII and X; Vietnamella thani (C, F, I, L): C outer projection on head (arrow) F inner and outer projections on head I, L tubercles on tergite VII and X. Scale bars: 1 mm (A-C); 0.5 mm (G); 0.1 mm (D-F, H, I); 0.05 mm (J-L)." figureDoi="10.3897/zookeys.902.46844.figure4" httpUri="https://binary.pensoft.net/fig/371641" pageId="0" pageNumber="17">, 4A, D, G, J</figureCitation>
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Forefemur and setae A forefemur of Vietnamella maculosa sp. nov. with serration of transverse ridge (arrow) B setae on transverse ridge of Vietnamella maculosa sp. nov. C setae on transverse ridge of V. thani. Scale bars: 1 mm (A); 0.01 mm (B, C)." figureDoi="10.3897/zookeys.902.46844.figure5" httpUri="https://binary.pensoft.net/fig/371642" pageId="0" pageNumber="17">, 5A, B</figureCitation>
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. SEM of egg structure of Vietnamella maculosa sp. nov. A overview B detail of Knob Terminated Coiled Thread (KCT) C micropyle and chorionic surface. Scale bars: 50 µm (A); 20 µm (B); 10 µm (C)." figureDoi="10.3897/zookeys.902.46844.figure6" httpUri="https://binary.pensoft.net/fig/371643" pageId="0" pageNumber="17">, 6A-C</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="materials_examined">
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<paragraph pageId="0" pageNumber="17">Material examined.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="17">Holotype</emphasis>
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: 1 male larva Thailand, Chiang Rai Province, Mueang Chiang Rai, Pong Phra Bat waterfall,
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<geoCoordinate degrees="20" direction="north" minutes="00" orientation="latitude" precision="1" seconds="41.0" value="20.011389">20°00'41.0"N</geoCoordinate>
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,
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<geoCoordinate degrees="99" direction="east" minutes="48" orientation="longitude" precision="1" seconds="15.0" value="99.80417">99°48'15.0"E</geoCoordinate>
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, 470 m, 6.V.2019, D. Chainthong leg. [ZMKU].
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<emphasis bold="true" italics="true" pageId="0" pageNumber="17">Paratypes</emphasis>
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: 2 larvae same data as holotype; 1 larva on slide [ZMKU] and another in ethanol [MZL GBIFCH00673059]. Both paratypes were used for DNA extraction.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="17" type="description">
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<paragraph pageId="0" pageNumber="17">Description.</paragraph>
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<paragraph pageId="0" pageNumber="17">
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Mature larva (in alcohol, Fig.
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Vietnamella spp. A Vietnamella maculosa sp. nov., habitus in dorsal view B Vietnamella sp. B, habitus in dorsal view. Scale bars: 1 mm." figureDoi="10.3897/zookeys.902.46844.figure1" httpUri="https://binary.pensoft.net/fig/371638" pageId="0" pageNumber="17">1A</figureCitation>
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). Body length 11.25 mm without cerci; cerci 4.8 mm; body brown with dark brown markings on thorax and femora.
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</paragraph>
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<caption doi="10.3897/zookeys.902.46844.figure1" httpUri="https://binary.pensoft.net/fig/371638" pageId="0" pageNumber="17" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" pageId="0" pageNumber="17">Figure 1.</emphasis>
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<taxonomicName class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella</emphasis>
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</taxonomicName>
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spp.
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<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
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<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
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<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
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</taxonomicName>
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sp. nov., habitus in dorsal view
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<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
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<taxonomicName class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella</emphasis>
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</taxonomicName>
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sp. B, habitus in dorsal view. Scale bars: 1 mm.
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" pageId="0" pageNumber="17">
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<emphasis italics="true" pageId="0" pageNumber="17">Head</emphasis>
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.
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</emphasis>
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Brown with a pair of occipital tubercles, a single sub-occipital tubercle medially; two projections below eyes; inner pairs of projections small, spine-like and sharp (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2A</figureCitation>
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); outer pair large, triangular, cone shaped without any serrated spines (Fig.
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Vietnamella spp. Vietnamella maculosa sp. nov. (A, D, G, J): A outer projection on head (arrow) D inner and outer projections on head G, J tubercle on tergite VII and X; Vietnamella sp. B (B, E, H, K): B outer projection on head (arrow) E inner and outer projections with serration on head H, K tubercles on tergite VII and X; Vietnamella thani (C, F, I, L): C outer projection on head (arrow) F inner and outer projections on head I, L tubercles on tergite VII and X. Scale bars: 1 mm (A-C); 0.5 mm (G); 0.1 mm (D-F, H, I); 0.05 mm (J-L)." figureDoi="10.3897/zookeys.902.46844.figure4" httpUri="https://binary.pensoft.net/fig/371641" pageId="0" pageNumber="17">4A, D</figureCitation>
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). Labrum, similar to other vietnamellid mayflies, anterior half of dorsal surface and margins with relatively long setae, ventral surface with short setae (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2B</figureCitation>
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). Labium, glossae width greater than length, glossae and paraglossae with dense setae on surface, setae on dorsal surface and margins longer; labial palpi three segmented, basal segment broader and longer than the second, apical segment very small; palpi with tiny setae (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2C</figureCitation>
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). Left mandible, slender, a little concave at sub-median area; molar block-like shape with a tuff of short setae below inner molar margin (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2D</figureCitation>
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). Right mandible, slender, slightly concave at sub-median area; molar block-like shape with a row of setae below inner molar margin (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2E</figureCitation>
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). Maxillae slender; maxillary palpi three segmented, with tiny setae; length ratio from basal to apical = 1.3:1.2:1 (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2F</figureCitation>
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). Hypopharynx, lingua square and superlinguae nearly round, with setae on surface (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Vietnamella maculosa sp. nov. A ventral view of head with outer projection and small inner projection (arrow) B labrum C labium D left mandible E right mandible F maxilla G hypopharynx. Scale bars: 1 mm (A); 0.1 mm (B-G)." figureDoi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17">2G</figureCitation>
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)
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</paragraph>
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<caption doi="10.3897/zookeys.902.46844.figure2" httpUri="https://binary.pensoft.net/fig/371639" pageId="0" pageNumber="17" start="Figure 2" startId="F2">
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" pageId="0" pageNumber="17">Figure 2.</emphasis>
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<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
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<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
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</taxonomicName>
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sp. nov.
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<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
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ventral view of head with outer projection and small inner projection (arrow)
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<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
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labrum
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<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
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labium
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<emphasis bold="true" pageId="0" pageNumber="17">D</emphasis>
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left mandible
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<emphasis bold="true" pageId="0" pageNumber="17">E</emphasis>
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right mandible
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<emphasis bold="true" pageId="0" pageNumber="17">F</emphasis>
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maxilla
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<emphasis bold="true" pageId="0" pageNumber="17">G</emphasis>
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hypopharynx. Scale bars: 1 mm (
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<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
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); 0.1 mm (
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<emphasis bold="true" pageId="0" pageNumber="17">B-G</emphasis>
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).
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" pageId="0" pageNumber="17">
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<emphasis italics="true" pageId="0" pageNumber="17">Thorax</emphasis>
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.
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</emphasis>
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Pronotum with small moderately sharp anterolateral projections, and slightly pointed protuberances below the anterolateral projection (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3A</figureCitation>
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). Forefemur, strongly expanded with serrations or teeth projections on ventral margin (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3B</figureCitation>
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); transverse ridge serrated with small rounded setae (Fig.
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<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Forefemur and setae A forefemur of Vietnamella maculosa sp. nov. with serration of transverse ridge (arrow) B setae on transverse ridge of Vietnamella maculosa sp. nov. C setae on transverse ridge of V. thani. Scale bars: 1 mm (A); 0.01 mm (B, C)." figureDoi="10.3897/zookeys.902.46844.figure5" httpUri="https://binary.pensoft.net/fig/371642" pageId="0" pageNumber="17">5A, B</figureCitation>
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) and long thin setae near inner dorsal margin. Midfemur without any projection, expanded, dorsal margin convex apically and with a row of hair-like setae (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3C</figureCitation>
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). Hindfemur without any projection, expanded, longer than midfemur, dorsal margin with a row of hair-like setae (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3D</figureCitation>
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). All claws similar, strongly hooked with a single small denticle basally (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3E</figureCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="17">
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<emphasis bold="true" pageId="0" pageNumber="17">
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<emphasis italics="true" pageId="0" pageNumber="17">Abdomen</emphasis>
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.
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</emphasis>
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Tergites I-X with a pair of median ridges or tubercles; posterolateral angles of tergites II-X extended into sharp projection; tergite VII with a pair of tubercles (Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Vietnamella spp. Vietnamella maculosa sp. nov. (A, D, G, J): A outer projection on head (arrow) D inner and outer projections on head G, J tubercle on tergite VII and X; Vietnamella sp. B (B, E, H, K): B outer projection on head (arrow) E inner and outer projections with serration on head H, K tubercles on tergite VII and X; Vietnamella thani (C, F, I, L): C outer projection on head (arrow) F inner and outer projections on head I, L tubercles on tergite VII and X. Scale bars: 1 mm (A-C); 0.5 mm (G); 0.1 mm (D-F, H, I); 0.05 mm (J-L)." figureDoi="10.3897/zookeys.902.46844.figure4" httpUri="https://binary.pensoft.net/fig/371641" pageId="0" pageNumber="17">4G</figureCitation>
|
|
) and tergite X with well-developed a pair of tubercles (Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Vietnamella spp. Vietnamella maculosa sp. nov. (A, D, G, J): A outer projection on head (arrow) D inner and outer projections on head G, J tubercle on tergite VII and X; Vietnamella sp. B (B, E, H, K): B outer projection on head (arrow) E inner and outer projections with serration on head H, K tubercles on tergite VII and X; Vietnamella thani (C, F, I, L): C outer projection on head (arrow) F inner and outer projections on head I, L tubercles on tergite VII and X. Scale bars: 1 mm (A-C); 0.5 mm (G); 0.1 mm (D-F, H, I); 0.05 mm (J-L)." figureDoi="10.3897/zookeys.902.46844.figure4" httpUri="https://binary.pensoft.net/fig/371641" pageId="0" pageNumber="17">4J</figureCitation>
|
|
); lateral margins of tergite with dense setae. Gill on segments I-VII: gill I finger-like with setae (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3F</figureCitation>
|
|
); gills on segments II-VI similar in structure, with dorsal and ventral lamellae, the latter further divided into two clusters, each with several smaller lobes (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3G-K</figureCitation>
|
|
); gill on segment VII small, with two lamellae but ventral lamella divided into three lobes (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Vietnamella maculosa sp. nov. A thorax B forefemur C middle femur D hind femur E foreleg claw F first gills on segment I (arrow) G gill II H gill III I gill IV J gill V K gill V L gill VII. Scale bars: 1 mm (A-D, F); 0.2 mm (G-L); 0.1 mm (E)." figureDoi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17">3L</figureCitation>
|
|
). Caudal filaments with dense lateral setae on inner and outer margins of middle part.
|
|
</paragraph>
|
|
<caption doi="10.3897/zookeys.902.46844.figure3" httpUri="https://binary.pensoft.net/fig/371640" pageId="0" pageNumber="17" start="Figure 3" startId="F3">
|
|
<paragraph pageId="0" pageNumber="17">
|
|
<emphasis bold="true" pageId="0" pageNumber="17">Figure 3.</emphasis>
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov.
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
|
|
thorax
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
|
|
forefemur
|
|
<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
|
|
middle femur
|
|
<emphasis bold="true" pageId="0" pageNumber="17">D</emphasis>
|
|
hind femur
|
|
<emphasis bold="true" pageId="0" pageNumber="17">E</emphasis>
|
|
foreleg claw
|
|
<emphasis bold="true" pageId="0" pageNumber="17">F</emphasis>
|
|
first gills on segment I (arrow)
|
|
<emphasis bold="true" pageId="0" pageNumber="17">G</emphasis>
|
|
gill II
|
|
<emphasis bold="true" pageId="0" pageNumber="17">H</emphasis>
|
|
gill III
|
|
<emphasis bold="true" pageId="0" pageNumber="17">I</emphasis>
|
|
gill IV
|
|
<emphasis bold="true" pageId="0" pageNumber="17">J</emphasis>
|
|
gill V
|
|
<emphasis bold="true" pageId="0" pageNumber="17">K</emphasis>
|
|
gill V
|
|
<emphasis bold="true" pageId="0" pageNumber="17">L</emphasis>
|
|
gill VII. Scale bars: 1 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A-D, F</emphasis>
|
|
); 0.2 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">G-L</emphasis>
|
|
); 0.1 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">E</emphasis>
|
|
).
|
|
</paragraph>
|
|
</caption>
|
|
<caption doi="10.3897/zookeys.902.46844.figure4" httpUri="https://binary.pensoft.net/fig/371641" pageId="0" pageNumber="17" start="Figure 4" startId="F4">
|
|
<paragraph pageId="0" pageNumber="17">
|
|
<emphasis bold="true" pageId="0" pageNumber="17">Figure 4.</emphasis>
|
|
<taxonomicName class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella</emphasis>
|
|
</taxonomicName>
|
|
spp.
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A, D, G, J</emphasis>
|
|
):
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
|
|
outer projection on head (arrow)
|
|
<emphasis bold="true" pageId="0" pageNumber="17">D</emphasis>
|
|
inner and outer projections on head
|
|
<emphasis bold="true" pageId="0" pageNumber="17">G, J</emphasis>
|
|
tubercle on tergite VII and X;
|
|
<taxonomicName class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella</emphasis>
|
|
</taxonomicName>
|
|
sp. B (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B, E, H, K</emphasis>
|
|
):
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
|
|
outer projection on head (arrow)
|
|
<emphasis bold="true" pageId="0" pageNumber="17">E</emphasis>
|
|
inner and outer projections with serration on head
|
|
<emphasis bold="true" pageId="0" pageNumber="17">H, K</emphasis>
|
|
tubercles on tergite VII and X;
|
|
<taxonomicName authorityName="Tshernova" authorityYear="1972" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella thani" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="thani">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella thani</emphasis>
|
|
</taxonomicName>
|
|
(
|
|
<emphasis bold="true" pageId="0" pageNumber="17">C, F, I, L</emphasis>
|
|
):
|
|
<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
|
|
outer projection on head (arrow)
|
|
<emphasis bold="true" pageId="0" pageNumber="17">F</emphasis>
|
|
inner and outer projections on head
|
|
<emphasis bold="true" pageId="0" pageNumber="17">I, L</emphasis>
|
|
tubercles on tergite VII and X. Scale bars: 1 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A-C</emphasis>
|
|
); 0.5 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">G</emphasis>
|
|
); 0.1 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">D-F, H, I</emphasis>
|
|
); 0.05 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">J-L</emphasis>
|
|
).
|
|
</paragraph>
|
|
</caption>
|
|
<caption doi="10.3897/zookeys.902.46844.figure5" httpUri="https://binary.pensoft.net/fig/371642" pageId="0" pageNumber="17" start="Figure 5" startId="F5">
|
|
<paragraph pageId="0" pageNumber="17">
|
|
<emphasis bold="true" pageId="0" pageNumber="17">Figure 5.</emphasis>
|
|
Forefemur and setae
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
|
|
forefemur of
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. with serration of transverse ridge (arrow)
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
|
|
setae on transverse ridge of
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov.
|
|
<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
|
|
setae on transverse ridge of
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. thani" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="thani">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. thani</emphasis>
|
|
</taxonomicName>
|
|
. Scale bars: 1 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
|
|
); 0.01 mm (
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B, C</emphasis>
|
|
).
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph pageId="0" pageNumber="17">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="17">Eggs.</emphasis>
|
|
(dissected from mature larva). Length 200
|
|
<normalizedToken originalValue="µm">µm</normalizedToken>
|
|
, width 144
|
|
<normalizedToken originalValue="µm">µm</normalizedToken>
|
|
; oval shape, chorionic surface with small protuberances, half of egg covered with helmet-shaped polar cap (Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. SEM of egg structure of Vietnamella maculosa sp. nov. A overview B detail of Knob Terminated Coiled Thread (KCT) C micropyle and chorionic surface. Scale bars: 50 µm (A); 20 µm (B); 10 µm (C)." figureDoi="10.3897/zookeys.902.46844.figure6" httpUri="https://binary.pensoft.net/fig/371643" pageId="0" pageNumber="17">6A</figureCitation>
|
|
); rod shaped KCT (Knob Terminated Coiled Thread) around egg body (Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. SEM of egg structure of Vietnamella maculosa sp. nov. A overview B detail of Knob Terminated Coiled Thread (KCT) C micropyle and chorionic surface. Scale bars: 50 µm (A); 20 µm (B); 10 µm (C)." figureDoi="10.3897/zookeys.902.46844.figure6" httpUri="https://binary.pensoft.net/fig/371643" pageId="0" pageNumber="17">6B</figureCitation>
|
|
); 2 or 3 tagenoform-type micropyles at centre (Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. SEM of egg structure of Vietnamella maculosa sp. nov. A overview B detail of Knob Terminated Coiled Thread (KCT) C micropyle and chorionic surface. Scale bars: 50 µm (A); 20 µm (B); 10 µm (C)." figureDoi="10.3897/zookeys.902.46844.figure6" httpUri="https://binary.pensoft.net/fig/371643" pageId="0" pageNumber="17">6C</figureCitation>
|
|
).
|
|
</paragraph>
|
|
<caption doi="10.3897/zookeys.902.46844.figure6" httpUri="https://binary.pensoft.net/fig/371643" pageId="0" pageNumber="17" start="Figure 6" startId="F6">
|
|
<paragraph pageId="0" pageNumber="17">
|
|
<emphasis bold="true" pageId="0" pageNumber="17">Figure 6.</emphasis>
|
|
SEM of egg structure of
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov.
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
|
|
overview
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
|
|
detail of Knob Terminated Coiled Thread (KCT)
|
|
<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
|
|
micropyle and chorionic surface. Scale bars: 50
|
|
<normalizedToken originalValue="µm">µm</normalizedToken>
|
|
(
|
|
<emphasis bold="true" pageId="0" pageNumber="17">A</emphasis>
|
|
); 20
|
|
<normalizedToken originalValue="µm">µm</normalizedToken>
|
|
(
|
|
<emphasis bold="true" pageId="0" pageNumber="17">B</emphasis>
|
|
); 10
|
|
<normalizedToken originalValue="µm">µm</normalizedToken>
|
|
(
|
|
<emphasis bold="true" pageId="0" pageNumber="17">C</emphasis>
|
|
).
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="17" type="diagnosis">
|
|
<paragraph pageId="0" pageNumber="17">Diagnosis.</paragraph>
|
|
<paragraph pageId="0" pageNumber="17">
|
|
The larva of
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. is most similar to that of
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. thani" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="thani">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. thani</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. sinensis" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="sinensis">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. sinensis</emphasis>
|
|
</taxonomicName>
|
|
in the lack of serrations on the outer projection on the head, but it can be separated from
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. thani" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="thani">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. thani</emphasis>
|
|
</taxonomicName>
|
|
based on the following characteristics: i) the pattern of serration on the ventral margin of the forefemur, ii) the setae on the transverse ridge of the forefemur, iii) a well-developed pair of median ridge projections of tergite X. It can be separated from
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. sinensis" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="sinensis">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. sinensis</emphasis>
|
|
</taxonomicName>
|
|
by the proportion of the maxillary palp on the second segment, which is slightly longer than on the third segment (1.2:1), whereas in
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. sinensis" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="sinensis">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. sinensis</emphasis>
|
|
</taxonomicName>
|
|
it is clearly longer (1.6:1).
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="17" type="remarks">
|
|
<paragraph pageId="0" pageNumber="17">Remarks.</paragraph>
|
|
<paragraph pageId="0" pageNumber="17">
|
|
The larvae of
|
|
<taxonomicName authorityName="Auychinda & Sartori & Boonsoong" authorityYear="2020" class="Insecta" family="Vietnamellidae" genus="Vietnamella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Vietnamella maculosa" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="maculosa">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">Vietnamella maculosa</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. have a unique colour pattern, with brown and dark brown banding spread over the body and femurs. However, this colour can change in intensity depending on the life stage and environment. Other species, like
|
|
<taxonomicName class="Insecta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="V. thani" order="Ephemeroptera" pageId="0" pageNumber="17" phylum="Arthropoda" rank="species" species="thani">
|
|
<emphasis italics="true" pageId="0" pageNumber="17">V. thani</emphasis>
|
|
</taxonomicName>
|
|
, have variation in body colour but do not have this pattern.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="17" type="etymology">
|
|
<paragraph pageId="0" pageNumber="17">Etymology.</paragraph>
|
|
<paragraph pageId="0" pageNumber="17">
|
|
The name
|
|
<emphasis italics="true" pageId="0" pageNumber="17">maculosa</emphasis>
|
|
(Latin for having spot or macula), refers to the brown and dark brown banding of the species.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="17" type="distribution">
|
|
<paragraph pageId="0" pageNumber="17">Distribution.</paragraph>
|
|
<paragraph pageId="0" pageNumber="17">Chiang Rai Province</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="17" type="adult">
|
|
<paragraph pageId="0" pageNumber="17">Adult.</paragraph>
|
|
<paragraph pageId="0" pageNumber="17">Unknown</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |