400 lines
38 KiB
XML
400 lines
38 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/afrinvertebr.62.73911" ID-GBIF-Dataset="21ca9a8e-41e9-40e1-8858-01834b716ec6" ID-GBIF-Taxon="190303533" ID-Pensoft-Pub="2305-2562-2-465" ID-Pensoft-UUID="8A4D6DDC71045E939CBAE666537D4D5E" ID-ZooBank="1AD5CF82F14B4ADA80344646C0AF300D" LSID="urn:lsid:zoobank.org:act:871DA221-4FDB-4CF6-B81B-88E6C35527AB" ModsDocID="2305-2562-62-2-465" checkinTime="1636778585649" checkinUser="pensoft" docAuthor="Kaltenbach, Thomas & Gattolliat, Jean-Luc" docDate="2021" docId="E80635D7273A59B78BED44574B3C4762" docLanguage="en" docName="AfrInvert 62(2): 465-484" docOrigin="African Invertebrates 62 (2)" docPubDate="2021-11-12" docSource="http://dx.doi.org/10.3897/afrinvertebr.62.73911" docTitle="Megalabiops Kaltenbach & Gattolliat 2021, gen. nov." docType="treatment" docUuid="871DA221-4FDB-4CF6-B81B-88E6C35527AB" docUuidSource="ZooBank" docVersion="3" id="8A4D6DDC71045E939CBAE666537D4D5E" lastPageNumber="465" masterDocId="8A4D6DDC71045E939CBAE666537D4D5E" masterDocTitle="A new genus from Madagascar with strongly enlarged labium (Ephemeroptera, Baetidae)" masterLastPageNumber="484" masterPageNumber="465" pageId="0" pageNumber="465" updateTime="1637334741434" updateUser="ExternalLinkService">
|
|
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
|
|
<mods:titleInfo>
|
|
<mods:title>A new genus from Madagascar with strongly enlarged labium (Ephemeroptera, Baetidae)</mods:title>
|
|
</mods:titleInfo>
|
|
<mods:name type="personal">
|
|
<mods:role>
|
|
<mods:roleTerm>Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart>Kaltenbach, Thomas</mods:namePart>
|
|
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8052-0388</mods:nameIdentifier>
|
|
<mods:affiliation>Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland & University of Lausanne (UNIL), Department of Ecology and Evolution, CH- 1015 Lausanne, Switzerland</mods:affiliation>
|
|
<mods:nameIdentifier type="email">thomas.kaltenbach@bluewin.ch</mods:nameIdentifier>
|
|
</mods:name>
|
|
<mods:name type="personal">
|
|
<mods:role>
|
|
<mods:roleTerm>Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart>Gattolliat, Jean-Luc</mods:namePart>
|
|
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5873-5083</mods:nameIdentifier>
|
|
<mods:affiliation>Museum of Zoology, Palais de Rumine, Place Riponne 6, CH- 1005 Lausanne, Switzerland & University of Lausanne (UNIL), Department of Ecology and Evolution, CH- 1015 Lausanne, Switzerland</mods:affiliation>
|
|
</mods:name>
|
|
<mods:typeOfResource>text</mods:typeOfResource>
|
|
<mods:relatedItem type="host">
|
|
<mods:titleInfo>
|
|
<mods:title>African Invertebrates</mods:title>
|
|
</mods:titleInfo>
|
|
<mods:part>
|
|
<mods:date>2021</mods:date>
|
|
<mods:detail type="pubDate">
|
|
<mods:number>2021-11-12</mods:number>
|
|
</mods:detail>
|
|
<mods:detail type="volume">
|
|
<mods:number>62</mods:number>
|
|
</mods:detail>
|
|
<mods:detail type="issue">
|
|
<mods:number>2</mods:number>
|
|
</mods:detail>
|
|
<mods:extent unit="page">
|
|
<mods:start>465</mods:start>
|
|
<mods:end>484</mods:end>
|
|
</mods:extent>
|
|
</mods:part>
|
|
</mods:relatedItem>
|
|
<mods:location>
|
|
<mods:url>http://dx.doi.org/10.3897/afrinvertebr.62.73911</mods:url>
|
|
</mods:location>
|
|
<mods:classification>journal article</mods:classification>
|
|
<mods:identifier type="DOI">http://dx.doi.org/10.3897/afrinvertebr.62.73911</mods:identifier>
|
|
<mods:identifier type="Pensoft-Pub">2305-2562-2-465</mods:identifier>
|
|
<mods:identifier type="ZooBank">1AD5CF82F14B4ADA80344646C0AF300D</mods:identifier>
|
|
<mods:identifier type="Pensoft-UUID">8A4D6DDC71045E939CBAE666537D4D5E</mods:identifier>
|
|
</mods:mods>
|
|
<treatment ID-GBIF-Taxon="190303533" LSID="urn:lsid:zoobank.org:act:871DA221-4FDB-4CF6-B81B-88E6C35527AB" httpUri="http://treatment.plazi.org/id/E80635D7273A59B78BED44574B3C4762" lastPageNumber="465" pageId="0" pageNumber="465">
|
|
<subSubSection pageId="0" pageNumber="465" type="nomenclature">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<taxonomicName LSID="http://zoobank.org/871DA221-4FDB-4CF6-B81B-88E6C35527AB" authority="Kaltenbach & Gattolliat, 2021" authorityName="Kaltenbach & Gattolliat" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Megalabiops" order="Diptera" pageId="0" pageNumber="465" rank="genus" status="gen. nov.">Megalabiops</taxonomicName>
|
|
<taxonomicNameLabel pageId="0" pageNumber="465">gen. nov.</taxonomicNameLabel>
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="description">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Megalabiops madagasikara gen. et sp. nov., habitus, nymph a dorsal view b ventral view c, d lateral view. Scale bars: 1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure1" httpUri="https://binary.pensoft.net/fig/610392" pageId="0" pageNumber="465">Figures 1</figureCitation>
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megalabiops madagasikara gen. et sp. nov., nymph morphology a frontal section of head b head, ventral view c labium, lateral view d head, ventrolateral view. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465">, 2</figureCitation>
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">, 3</figureCitation>
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">, 4</figureCitation>
|
|
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megalabiops madagasikara gen. et sp. nov., nymph morphology a foreleg b fore claw c hind leg d head. Scale bars: 0.2 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure5" httpUri="https://binary.pensoft.net/fig/610396" pageId="0" pageNumber="465">, 5</figureCitation>
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megalabiops madagasikara gen. et sp. nov., nymph morphology a tergite IV (posterior margin) b paraproct c gill IV (with enlarged margins). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure6" httpUri="https://binary.pensoft.net/fig/610397" pageId="0" pageNumber="465">, 6</figureCitation>
|
|
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megalabiops madagasikara gen. et sp. nov., distribution in Madagascar." figureDoi="10.3897/afrinvertebr.62.73911.figure7" httpUri="https://binary.pensoft.net/fig/610398" pageId="0" pageNumber="465">, 7</figureCitation>
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="type species">
|
|
<paragraph pageId="0" pageNumber="465">Type species.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., by present designation.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="diagnosis">
|
|
<paragraph pageId="0" pageNumber="465">Diagnosis.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Nymph.</emphasis>
|
|
This new genus is distinguished by the combination of the following characters: A) body rather short and stocky (Fig.
|
|
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Megalabiops madagasikara gen. et sp. nov., habitus, nymph a dorsal view b ventral view c, d lateral view. Scale bars: 1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure1" httpUri="https://binary.pensoft.net/fig/610392" pageId="0" pageNumber="465">1</figureCitation>
|
|
); B) base of antennae close to each other, with rather broad carina between them (Fig.
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megalabiops madagasikara gen. et sp. nov., nymph morphology a frontal section of head b head, ventral view c labium, lateral view d head, ventrolateral view. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465">2a</figureCitation>
|
|
); C) pedicellus with many long, stout, pointed setae (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3a</figureCitation>
|
|
); D) labrum rather small, lateral margins straight, distal margin largely V-shaped; dorsal surface with one long, submedian seta and submarginal arc of setae restricted to a few simple setae (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3b</figureCitation>
|
|
); E) both mandibles with brush of medium, fine setae between prostheca and mola (Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3c, f</figureCitation>
|
|
); F) hypopharynx with large, medial tuft of stout setae (Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">4a</figureCitation>
|
|
); G) maxillary palp 2-segmented (Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">4b</figureCitation>
|
|
); H) labium with strongly enlarged mentum (Fig.
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megalabiops madagasikara gen. et sp. nov., nymph morphology a frontal section of head b head, ventral view c labium, lateral view d head, ventrolateral view. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465">2b-d</figureCitation>
|
|
); glossae basally broad, narrowing toward apex, shorter than paraglossae; inner ventrolateral margin of glossae with a row of long, simple setae, close to ventrolateral margin with a row of very long, simple setae, apically with some very robust, long, curved setae; stout paraglossae, slightly curved inward, apex with three rows of stout, pectinate setae; labial palps segment II without distolateral protuberance, segment III slightly pentagonal (Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">4d, e</figureCitation>
|
|
); I) forelegs with a row of long, spine-like setae on dorsal margin of femur; femoral patch absent on all legs; patellotibial suture absent on foreleg and present on middle and hind legs; claw strongly elongated, pointed, with two rows of numerous, minute denticles (Fig.
|
|
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megalabiops madagasikara gen. et sp. nov., nymph morphology a foreleg b fore claw c hind leg d head. Scale bars: 0.2 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure5" httpUri="https://binary.pensoft.net/fig/610396" pageId="0" pageNumber="465">5a, b</figureCitation>
|
|
); J) posterior margin of abdominal tergites with triangular spines, lateral margins without spines (Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megalabiops madagasikara gen. et sp. nov., nymph morphology a tergite IV (posterior margin) b paraproct c gill IV (with enlarged margins). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure6" httpUri="https://binary.pensoft.net/fig/610397" pageId="0" pageNumber="465">6a</figureCitation>
|
|
).
|
|
</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure1" httpUri="https://binary.pensoft.net/fig/610392" pageId="0" pageNumber="465" start="Figure 1" startId="F1">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 1.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., habitus, nymph
|
|
<emphasis bold="true" pageId="0" pageNumber="465">a</emphasis>
|
|
dorsal view
|
|
<emphasis bold="true" pageId="0" pageNumber="465">b</emphasis>
|
|
ventral view
|
|
<emphasis bold="true" pageId="0" pageNumber="465">c,d</emphasis>
|
|
lateral view. Scale bars: 1 mm.
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="imagines">
|
|
<paragraph pageId="0" pageNumber="465">Imagines.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">Unknown.</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465" start="Figure 2" startId="F2">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 2.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., nymph morphology
|
|
<emphasis bold="true" pageId="0" pageNumber="465">a</emphasis>
|
|
frontal section of head
|
|
<emphasis bold="true" pageId="0" pageNumber="465">b</emphasis>
|
|
head, ventral view
|
|
<emphasis bold="true" pageId="0" pageNumber="465">c</emphasis>
|
|
labium, lateral view
|
|
<emphasis bold="true" pageId="0" pageNumber="465">d</emphasis>
|
|
head, ventrolateral view. Scale bars: 0.1 mm.
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="etymology">
|
|
<paragraph pageId="0" pageNumber="465">Etymology.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<taxonomicName authorityName="Kaltenbach & Gattolliat" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops" order="Ephemeroptera" pageId="0" pageNumber="465" rank="genus">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops</emphasis>
|
|
</taxonomicName>
|
|
is an arbitrary combination of letters with allusion to the Greek words
|
|
<emphasis italics="true" pageId="0" pageNumber="465">mega</emphasis>
|
|
and
|
|
<emphasis italics="true" pageId="0" pageNumber="465">iops</emphasis>
|
|
, and the Latin word
|
|
<emphasis italics="true" pageId="0" pageNumber="465">labium</emphasis>
|
|
.
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalab</emphasis>
|
|
- is with reference to the strongly enlarged
|
|
<emphasis italics="true" pageId="0" pageNumber="465">labium</emphasis>
|
|
and -
|
|
<emphasis italics="true" pageId="0" pageNumber="465">iops</emphasis>
|
|
with reference to the
|
|
<taxonomicName authorityName="Leach" authorityYear="1815" class="Insecta" family="Baetidae" kingdom="Animalia" lsidName="" order="Ephemeroptera" pageId="0" pageNumber="465" phylum="Arthropoda" rank="family">Baetidae</taxonomicName>
|
|
which look and move like small fishes. The gender is feminine.
|
|
</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465" start="Figure 3" startId="F3">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 3.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., nymph morphology
|
|
<emphasis bold="true" pageId="0" pageNumber="465">a</emphasis>
|
|
base of antenna
|
|
<emphasis bold="true" pageId="0" pageNumber="465">b</emphasis>
|
|
labrum (left: ventral view, right: dorsal view)
|
|
<emphasis bold="true" pageId="0" pageNumber="465">c</emphasis>
|
|
right mandible
|
|
<emphasis bold="true" pageId="0" pageNumber="465">d</emphasis>
|
|
right prostheca
|
|
<emphasis bold="true" pageId="0" pageNumber="465">e</emphasis>
|
|
right incisor and kinetodontium
|
|
<emphasis bold="true" pageId="0" pageNumber="465">f</emphasis>
|
|
left mandible
|
|
<emphasis bold="true" pageId="0" pageNumber="465">g</emphasis>
|
|
left prostheca
|
|
<emphasis bold="true" pageId="0" pageNumber="465">h</emphasis>
|
|
left incisor and kinetodontium. Scale bars: 0.1 mm.
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="description">
|
|
<paragraph pageId="0" pageNumber="465">Description.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Nymph.</emphasis>
|
|
(Figs
|
|
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Megalabiops madagasikara gen. et sp. nov., habitus, nymph a dorsal view b ventral view c, d lateral view. Scale bars: 1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure1" httpUri="https://binary.pensoft.net/fig/610392" pageId="0" pageNumber="465">1</figureCitation>
|
|
-
|
|
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megalabiops madagasikara gen. et sp. nov., distribution in Madagascar." figureDoi="10.3897/afrinvertebr.62.73911.figure7" httpUri="https://binary.pensoft.net/fig/610398" pageId="0" pageNumber="465">7</figureCitation>
|
|
).
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Body.</emphasis>
|
|
Short and stocky (Figs
|
|
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Megalabiops madagasikara gen. et sp. nov., habitus, nymph a dorsal view b ventral view c, d lateral view. Scale bars: 1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure1" httpUri="https://binary.pensoft.net/fig/610392" pageId="0" pageNumber="465">1</figureCitation>
|
|
,
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megalabiops madagasikara gen. et sp. nov., nymph morphology a frontal section of head b head, ventral view c labium, lateral view d head, ventrolateral view. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465">2</figureCitation>
|
|
).
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Head</emphasis>
|
|
.
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Antenna</emphasis>
|
|
(Figs
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megalabiops madagasikara gen. et sp. nov., nymph morphology a frontal section of head b head, ventral view c labium, lateral view d head, ventrolateral view. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465">2a</figureCitation>
|
|
,
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3a</figureCitation>
|
|
). Antennae bases close to each other, with broad carina between them. Pedicellus with many long, stout, pointed setae; scapus bare.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Labrum</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3b</figureCitation>
|
|
). Rather small, lateral margins straight and distal margin largely V-shaped, wider than long; on dorsal surface with one submedian, long, simple seta and submarginal arc of setae restricted to few simple setae; on ventral margin anterolaterally and medially with a row of long, fine setae.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Right mandible</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3c, d, e</figureCitation>
|
|
). Incisor and kinetodontium cleft, kinetodontium with distinct denticles; inner margin of innermost denticle without a row of thin setae; prostheca stick-like, apicolaterally denticulate; margin between prostheca and mola with brush of abundant, medium, fine setae.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Left mandible</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Megalabiops madagasikara gen. et sp. nov., nymph morphology a base of antenna b labrum (left: ventral view, right: dorsal view) c right mandible d right prostheca e right incisor and kinetodontium f left mandible g left prostheca h left incisor and kinetodontium. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure3" httpUri="https://binary.pensoft.net/fig/610394" pageId="0" pageNumber="465">3f, g, h</figureCitation>
|
|
). Incisor and kinetodontium partially cleft, kinetodontium with distinct denticles; prostheca robust, apically with denticles and comb-shaped structure; margin between prostheca and mola with brush of abundant, medium, fine setae; mola slightly reduced in size.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<taxonomicName genus="Hypopharynx" lsidName="Hypopharynx" pageId="0" pageNumber="465" rank="genus">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Hypopharynx</emphasis>
|
|
</taxonomicName>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">4a</figureCitation>
|
|
). Lingua rather broad and expanded, with large dorsomedial tuft of stout setae.
|
|
</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465" start="Figure 4" startId="F4">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 4.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., nymph morphology
|
|
<emphasis bold="true" pageId="0" pageNumber="465">a</emphasis>
|
|
hypopharynx and superlinguae
|
|
<emphasis bold="true" pageId="0" pageNumber="465">b</emphasis>
|
|
maxilla (ds: denti-seta)
|
|
<emphasis bold="true" pageId="0" pageNumber="465">c</emphasis>
|
|
seta at tip of maxilla
|
|
<emphasis bold="true" pageId="0" pageNumber="465">d</emphasis>
|
|
labium (left: ventral view, right: dorsal view)
|
|
<emphasis bold="true" pageId="0" pageNumber="465">e</emphasis>
|
|
apex of paraglossa (ventral view). Scale bar: 0.1 mm.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Maxilla</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">4b, c</figureCitation>
|
|
). Apically with three canines and three denti-setae; distal denti-seta tooth-like, closely attached to canines, following same direction as canines, other denti-setae slender, bifid and pectinate; maxillary palp 2-segmented, apically pointed and with stout seta at the tip.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Labium</emphasis>
|
|
(Figs
|
|
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Megalabiops madagasikara gen. et sp. nov., nymph morphology a frontal section of head b head, ventral view c labium, lateral view d head, ventrolateral view. Scale bars: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure2" httpUri="https://binary.pensoft.net/fig/610393" pageId="0" pageNumber="465">2b-d</figureCitation>
|
|
,
|
|
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Megalabiops madagasikara gen. et sp. nov., nymph morphology a hypopharynx and superlinguae b maxilla (ds: denti-seta) c seta at tip of maxilla d labium (left: ventral view, right: dorsal view) e apex of paraglossa (ventral view). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure4" httpUri="https://binary.pensoft.net/fig/610395" pageId="0" pageNumber="465">4d, e</figureCitation>
|
|
). Mentum strongly enlarged (long, very thick). Glossae basally broad, narrowing toward apex, shorter than paraglossae; inner ventrolateral margin with row of long, simple setae and close to inner margin with row of very long, simple setae; apically with some very robust, long, curved setae. Paraglossae broad, slightly curved inward, with convex outer margin; apically with three rows of long, stout, pectinate setae. Labial palps long, segment II without distolateral protuberance, segment III almost pentagonal, distal margin straight, lateral margin curved.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">
|
|
Thorax.
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Hind protoptera</emphasis>
|
|
</emphasis>
|
|
well developed.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Foreleg</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megalabiops madagasikara gen. et sp. nov., nymph morphology a foreleg b fore claw c hind leg d head. Scale bars: 0.2 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure5" httpUri="https://binary.pensoft.net/fig/610396" pageId="0" pageNumber="465">5a, b</figureCitation>
|
|
).
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Femur</emphasis>
|
|
stocky with a row of long, spine-like setae on dorsal margin and many long, spine-like setae along ventral margin; femoral patch absent.
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Tibia</emphasis>
|
|
stocky, slightly shorter than tarsus. Patellotibial suture absent, connection between tibia and tarsus tight.
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Claw</emphasis>
|
|
strongly elongated, pointed; with two long rows of numerous, minute denticles; subapical setae absent.
|
|
</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure5" httpUri="https://binary.pensoft.net/fig/610396" pageId="0" pageNumber="465" start="Figure 5" startId="F5">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 5.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., nymph morphology
|
|
<emphasis bold="true" pageId="0" pageNumber="465">a</emphasis>
|
|
foreleg
|
|
<emphasis bold="true" pageId="0" pageNumber="465">b</emphasis>
|
|
fore claw
|
|
<emphasis bold="true" pageId="0" pageNumber="465">c</emphasis>
|
|
hind leg
|
|
<emphasis bold="true" pageId="0" pageNumber="465">d</emphasis>
|
|
head. Scale bars: 0.2 mm.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Middle and hind legs</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Megalabiops madagasikara gen. et sp. nov., nymph morphology a foreleg b fore claw c hind leg d head. Scale bars: 0.2 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure5" httpUri="https://binary.pensoft.net/fig/610396" pageId="0" pageNumber="465">5c</figureCitation>
|
|
).
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Femur</emphasis>
|
|
slenderer than at foreleg; femoral patch absent.
|
|
<emphasis bold="true" pageId="0" pageNumber="465">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Tibia</emphasis>
|
|
.
|
|
</emphasis>
|
|
Patellotibial suture present.
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Claw</emphasis>
|
|
as in foreleg.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">
|
|
Abdomen.
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Tergites</emphasis>
|
|
</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megalabiops madagasikara gen. et sp. nov., nymph morphology a tergite IV (posterior margin) b paraproct c gill IV (with enlarged margins). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure6" httpUri="https://binary.pensoft.net/fig/610397" pageId="0" pageNumber="465">6a</figureCitation>
|
|
). Posterior margin with triangular spines on all segments; lateral margins without spines.
|
|
</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure6" httpUri="https://binary.pensoft.net/fig/610397" pageId="0" pageNumber="465" start="Figure 6" startId="F6">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 6.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., nymph morphology
|
|
<emphasis bold="true" pageId="0" pageNumber="465">a</emphasis>
|
|
tergite IV (posterior margin)
|
|
<emphasis bold="true" pageId="0" pageNumber="465">b</emphasis>
|
|
paraproct
|
|
<emphasis bold="true" pageId="0" pageNumber="465">c</emphasis>
|
|
gill IV (with enlarged margins). Scale bar: 0.1 mm.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Gills</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megalabiops madagasikara gen. et sp. nov., nymph morphology a tergite IV (posterior margin) b paraproct c gill IV (with enlarged margins). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure6" httpUri="https://binary.pensoft.net/fig/610397" pageId="0" pageNumber="465">6c</figureCitation>
|
|
). Seven pairs of gills on segments I-VII, dorsally oriented.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Paraproct</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Megalabiops madagasikara gen. et sp. nov., nymph morphology a tergite IV (posterior margin) b paraproct c gill IV (with enlarged margins). Scale bar: 0.1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure6" httpUri="https://binary.pensoft.net/fig/610397" pageId="0" pageNumber="465">6b</figureCitation>
|
|
). With slight, rounded expansion at posterior margin; with numerous, stout, marginal spines.
|
|
</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" italics="true" pageId="0" pageNumber="465">Caudal filaments</emphasis>
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Megalabiops madagasikara gen. et sp. nov., habitus, nymph a dorsal view b ventral view c, d lateral view. Scale bars: 1 mm." figureDoi="10.3897/afrinvertebr.62.73911.figure1" httpUri="https://binary.pensoft.net/fig/610392" pageId="0" pageNumber="465">1</figureCitation>
|
|
). Inner margin of cerci with 3 to more than 15 long, thin primary swimming setae per segment, increasing in number distally; paracercus bilaterally with 4 to more than 13 long, thin primary swimming setae per segment, increasing in number distally.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="description">
|
|
<paragraph pageId="0" pageNumber="465">Description.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Imagines.</emphasis>
|
|
Unknown.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="0" pageNumber="465" type="distribution">
|
|
<paragraph pageId="0" pageNumber="465">Distribution.</paragraph>
|
|
<paragraph pageId="0" pageNumber="465">
|
|
(Fig.
|
|
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Megalabiops madagasikara gen. et sp. nov., distribution in Madagascar." figureDoi="10.3897/afrinvertebr.62.73911.figure7" httpUri="https://binary.pensoft.net/fig/610398" pageId="0" pageNumber="465">7</figureCitation>
|
|
). Madagascar: Eastern coast.
|
|
</paragraph>
|
|
<caption doi="10.3897/afrinvertebr.62.73911.figure7" httpUri="https://binary.pensoft.net/fig/610398" pageId="0" pageNumber="465" start="Figure 7" startId="F7">
|
|
<paragraph pageId="0" pageNumber="465">
|
|
<emphasis bold="true" pageId="0" pageNumber="465">Figure 7.</emphasis>
|
|
<taxonomicName authorityName="gen. et" authorityYear="2021" class="Insecta" family="Diopsidae" genus="Megalabiops" kingdom="Animalia" lsidName="Megalabiops madagasikara" order="Ephemeroptera" pageId="0" pageNumber="465" rank="species" species="madagasikara">
|
|
<emphasis italics="true" pageId="0" pageNumber="465">Megalabiops madagasikara</emphasis>
|
|
</taxonomicName>
|
|
gen. et sp. nov., distribution in Madagascar.
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |