274 lines
25 KiB
XML
274 lines
25 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/evolsyst.7.90973" ID-Pensoft-Pub="2535-0730-1-51" ID-Pensoft-UUID="ABE1527AFB225DE3B1CDE6FE4E7BB38C" ID-ZooBank="15FBAE73903B4E14BDE3CCC2D65AAD81" ModsDocID="2535-0730-7-1-51" checkinTime="1672842668324" checkinUser="pensoft" docAuthor="Brahma, Shubhranil, Chatterjee, Somnath & Hazra, Niladri" docDate="2023" docId="F97A3D646D605BE7AE8127BEE65DCD2C" docLanguage="en" docName="EvolutSyst 7(1): 51-66" docOrigin="Evolutionary Systematics 7 (1)" docPubDate="2023-01-03" docSource="http://dx.doi.org/10.3897/evolsyst.7.90973" docTitle="Dasyhelea (Sebessia) falxa Brahma & Chatterjee & Hazra 2023, sp. nov." docType="treatment" docUuid="D0ABBE88-3364-41BF-B418-85D03543EF81" docUuidSource="ZooBank" docVersion="1" id="ABE1527AFB225DE3B1CDE6FE4E7BB38C" lastPageNumber="51" masterDocId="ABE1527AFB225DE3B1CDE6FE4E7BB38C" masterDocTitle="Five new Indian species of the genus Dasyhelea Kieffer (Diptera, Ceratopogonidae) with a key to the adult males" masterLastPageNumber="66" masterPageNumber="51" pageNumber="51" updateTime="1672842668324" updateUser="pensoft">
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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>Five new Indian species of the genus Dasyhelea Kieffer (Diptera, Ceratopogonidae) with a key to the adult males</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>Brahma, Shubhranil</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5007-9704</mods:nameIdentifier>
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<mods:affiliation>Iswar Chandra College, Department of Zoology, Belonia, Tripura, 799155, India</mods:affiliation>
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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>Chatterjee, Somnath</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8572-1779</mods:nameIdentifier>
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<mods:affiliation>Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, 713104, India</mods:affiliation>
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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>Hazra, Niladri</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8149-9445</mods:nameIdentifier>
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<mods:affiliation>Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, 713104, India</mods:affiliation>
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<mods:nameIdentifier type="email">nhazra@zoo.buruniv.ac.in</mods:nameIdentifier>
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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>Evolutionary Systematics</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2023</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2023-01-03</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>7</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>51</mods:start>
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<mods:end>66</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/evolsyst.7.90973</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/evolsyst.7.90973</mods:identifier>
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<mods:identifier type="Pensoft-Pub">2535-0730-1-51</mods:identifier>
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<mods:identifier type="ZooBank">15FBAE73903B4E14BDE3CCC2D65AAD81</mods:identifier>
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<mods:identifier type="Pensoft-UUID">ABE1527AFB225DE3B1CDE6FE4E7BB38C</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:zoobank.org:act:D0ABBE88-3364-41BF-B418-85D03543EF81" httpUri="http://treatment.plazi.org/id/F97A3D646D605BE7AE8127BEE65DCD2C" lastPageNumber="51" pageId="0" pageNumber="51">
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<subSubSection pageId="0" pageNumber="51" type="nomenclature">
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<paragraph pageId="0" pageNumber="51">
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<taxonomicName LSID="https://zoobank.org/D0ABBE88-3364-41BF-B418-85D03543EF81" authority="Brahma & Chatterjee & Hazra, 2023" authorityName="Brahma & Chatterjee & Hazra" authorityYear="2023" class="Insecta" family="Ceratopogonidae" genus="Dasyhelea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dasyhelea (Sebessia) falxa" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="falxa" status="sp. nov." subGenus="Sebessia">Dasyhelea (Sebessia) falxa</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="51">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="51" type="type material">
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<paragraph pageId="0" pageNumber="51">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Holotype</emphasis>
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♂, India, West Bengal, South 24 Parganas, Dayapur [
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<geoCoordinate degrees="22" direction="north" minutes="07" orientation="latitude" precision="1" seconds="25.0" value="22.123611">22°07'25.0"N</geoCoordinate>
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,
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<geoCoordinate degrees="88" direction="east" minutes="50" orientation="longitude" precision="1" seconds="46.5" value="88.84625">88°50'46.5"E</geoCoordinate>
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], 23.V.2018, Coll. S. Brahma.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Paratype</emphasis>
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: 1♂, same as before.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="51" type="diagnosis">
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<paragraph pageId="0" pageNumber="51">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="51">
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The only species in the subgenus
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<taxonomicName class="Insecta" family="Ceratopogonidae" genus="Dasyhelea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dasyhelea (Sebessia)" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="subGenus" subGenus="Sebessia">Dasyhelea Sebessia</taxonomicName>
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with an elongated, oval shaped gonocoxite; gonostylus with less sclerotised middle region; basal arms of parameres sickle-shaped and funnel-shaped aedeagus.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="51" type="description">
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<paragraph pageId="0" pageNumber="51">Description.</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" pageId="0" pageNumber="51">Male adult</emphasis>
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(n = 2) (Figs
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6A-K</figureCitation>
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,
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-E Adult male genitalia structures. A Dasyhelea (Dasyhelea) incisura sp. nov.; B Dasyhelea (Dasyhelea) quasifulcillata sp. nov.; C Dasyhelea (Dasyhelea) trigona sp. nov.; D Dasyhelea (Sebessia) falxa sp. nov.; E Dasyhelea (Sebessia) folia sp. nov. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure8" httpUri="https://binary.pensoft.net/fig/790308" pageId="0" pageNumber="51">8D</figureCitation>
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). Total body length 2 mm.
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</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Head</emphasis>
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. Brown in colour. Eyes not separated. Frontal sclerite (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6A</figureCitation>
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) 46-53
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long and 34.5-39
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, rhomboid, evenly sclerotised moderately, without any apical projection. Flagellum (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6B</figureCitation>
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) pale brown, 0.6 mm long; flagellomere XIII without any distinct apical projection; length ratio of flagellomeres (I-XIII): 24: 14: 13: 12: 12-13: 13: 13: 12-13: 12: 20: 20-21: 28: 35-36; AR 1.0; flagellomeres II-XIII with sensilla basiconica. Clypeus as in figure 6C, with 4 pairs of setae. Palpus (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6D</figureCitation>
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) pale, straw coloured; length ratio of palp segments (I-V): 10: 13-13.5: 14-15: 10-10.5: 12; PR 2.3; palp segment III with 3 capitate sensilla at its basal one third region.
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</paragraph>
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<caption doi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51" start="Figure 6" startId="F6">
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" pageId="0" pageNumber="51">Figure 6.</emphasis>
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<emphasis bold="true" pageId="0" pageNumber="51">A-K</emphasis>
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Adult male of
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<taxonomicName authorityName="Brahma & Chatterjee & Hazra" authorityYear="2023" class="Insecta" family="Ceratopogonidae" genus="Dasyhelea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dasyhelea (Sebessia) falxa" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="falxa" subGenus="Sebessia">Dasyhelea (Sebessia) falxa</taxonomicName>
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sp. nov.
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<emphasis bold="true" pageId="0" pageNumber="51">A</emphasis>
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Frontal sclerite;
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<emphasis bold="true" pageId="0" pageNumber="51">B</emphasis>
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Flagellum;
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<emphasis bold="true" pageId="0" pageNumber="51">C</emphasis>
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Clypeus;
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<emphasis bold="true" pageId="0" pageNumber="51">D</emphasis>
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Palpus;
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<emphasis bold="true" pageId="0" pageNumber="51">E</emphasis>
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Thorax;
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<emphasis bold="true" pageId="0" pageNumber="51">F</emphasis>
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Wing;
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<emphasis bold="true" pageId="0" pageNumber="51">G</emphasis>
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Femora and tibiae (right to left) of fore, mid and hind legs;
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<emphasis bold="true" pageId="0" pageNumber="51">H</emphasis>
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Hind tibial comb;
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<emphasis bold="true" pageId="0" pageNumber="51">I</emphasis>
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Genitalia (left dorsal and right ventral view);
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<emphasis bold="true" pageId="0" pageNumber="51">J</emphasis>
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Apicolateral process;
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<emphasis bold="true" pageId="0" pageNumber="51">K</emphasis>
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Aedeagus. Scale bars: 0.05 mm.
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Thorax</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6E</figureCitation>
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). Yellowish brown with pale streaks running laterads. Scutellum with 5 setae.
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</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Wing</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6F</figureCitation>
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). Macrotrichia sparse, RM cross vein broad, M1, Cu and CuA1 more prominent. Wing margin with short, prominent macrotrichia and membrane with reduced macrotrichia at wing membrane. Wing 0.90 mm long, 0.29-0.30 mm wide; CR 0.47-0.53. Costa ending beyond cubital fork.
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</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Legs</emphasis>
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(Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6G</figureCitation>
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). Pale brown in colour. TRI 3.11-3.16, TRII 2.87-3.57 and TRIII 2.77. Hind tibial comb (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6H</figureCitation>
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) with 5 spines where outer one smallest.
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</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Abdomen</emphasis>
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. Pale brown in colour.
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</paragraph>
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<paragraph pageId="0" pageNumber="51">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="51">Genitalia</emphasis>
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(Figs
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6I</figureCitation>
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,
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<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. A-E Adult male genitalia structures. A Dasyhelea (Dasyhelea) incisura sp. nov.; B Dasyhelea (Dasyhelea) quasifulcillata sp. nov.; C Dasyhelea (Dasyhelea) trigona sp. nov.; D Dasyhelea (Sebessia) falxa sp. nov.; E Dasyhelea (Sebessia) folia sp. nov. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure8" httpUri="https://binary.pensoft.net/fig/790308" pageId="0" pageNumber="51">8D</figureCitation>
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). Tergite 9 broad apically, inverted dome shaped, 142.5-152
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long and 145-161
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide. Apicolateral processes (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6J</figureCitation>
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) indistinct, with one prominent seta, cercus with a single seta. Sternite 9 (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6I</figureCitation>
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) with 34.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long posteromedian process, 1.47
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<normalizedToken originalValue="×">x</normalizedToken>
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wider than length. Gonocoxite stout, with a mesoventral knob like structure, 71-73.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, 46-53
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide at middle, having 6-7 setae on dorsal side. Gonostylus stout, somewhat stumpy, 62-66.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, 18.5-23
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide basally and 7
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide apically, somewhat abruptly narrowed, bearing an apical, pale, oval depression; mid region less sclerotised; 2 inwardly directed setae at basal region; 1 dorsal seta at proximal one third length, centered between two lateral setae, ventrally 9-10 prominent setae, subapex bearing 3 setae. Parameres (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6I</figureCitation>
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) with each basal arm 48.5-53
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long, sickle shaped with 30
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long projection. Aedeagus (Fig.
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<figureCitation captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. A-K Adult male of Dasyhelea (Sebessia) falxa sp. nov. A Frontal sclerite; B Flagellum; C Clypeus; D Palpus; E Thorax; F Wing; G Femora and tibiae (right to left) of fore, mid and hind legs; H Hind tibial comb; I Genitalia (left dorsal and right ventral view); J Apicolateral process; K Aedeagus. Scale bars: 0.05 mm." figureDoi="10.3897/evolsyst.7.90973.figure6" httpUri="https://binary.pensoft.net/fig/790306" pageId="0" pageNumber="51">6K</figureCitation>
|
||
) funnel shaped with 43.5-46
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
long, 53-60
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
wide; basal arm indistinct, 7-9
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
long, enclosing 34.5-39
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
wide basal arch; posterolateral arm 27.5-30
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
long, apex recurved inwardly, both basal arm and posterolateral arm highly sclerotised; ventromedian projection bulging laterally and extended beyond posterolateral arm forming finger like apical projection.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="51">
|
||
<emphasis bold="true" pageId="0" pageNumber="51">Female adult.</emphasis>
|
||
Unknown.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="51">
|
||
<emphasis bold="true" pageId="0" pageNumber="51">Pupa and larva.</emphasis>
|
||
Unknown.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="51" type="etymology">
|
||
<paragraph pageId="0" pageNumber="51">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="51">
|
||
The name, "
|
||
<taxonomicName authorityName="Brahma & Chatterjee & Hazra" authorityYear="2023" class="Insecta" family="Ceratopogonidae" genus="Dasyhelea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dasyhelea falxa" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="falxa">
|
||
<emphasis italics="true" pageId="0" pageNumber="51">Dasyhelea falxa</emphasis>
|
||
</taxonomicName>
|
||
" derived from Latinised version of
|
||
<emphasis italics="true" pageId="0" pageNumber="51">sickle</emphasis>
|
||
, referring to the sickle-shaped basal arms of the parameres of male genitalia.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="51" type="remarks">
|
||
<paragraph pageId="0" pageNumber="51">Remarks.</paragraph>
|
||
<paragraph pageId="0" pageNumber="51">
|
||
The new species shares similarities with
|
||
<taxonomicName class="Insecta" kingdom="Animalia" lsidName="D. ona" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="ona">
|
||
<emphasis italics="true" pageId="0" pageNumber="51">D. ona</emphasis>
|
||
</taxonomicName>
|
||
<normalizedToken originalValue="Díaz">Diaz</normalizedToken>
|
||
, Spinelli & Ronderos, 2010 (Argentina) in the shape of the basal arms of the parameres but the shape of projection of parameres, gonostylus and aedeagus are markedly different. It also owes similarities with
|
||
<taxonomicName class="Insecta" kingdom="Animalia" lsidName="D. (S.) holosericea" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="holosericea" subGenus="S.">D. (S.) holosericea</taxonomicName>
|
||
(Meigen, 1804) (Estonia, Finland, Poland, Lithuania, France, and Russia) in the structure of the gonostylus and basal arms of the parameres, but differs in the shape of gonocoxite and aedeagus. The shape of the parameres in the new species are quite similar with that of
|
||
<taxonomicName class="Insecta" kingdom="Animalia" lsidName="D. caribbeana" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="caribbeana">
|
||
<emphasis italics="true" pageId="0" pageNumber="51">D. caribbeana</emphasis>
|
||
</taxonomicName>
|
||
Spinelli & Wirth, 1984 (Jamaica, Haiti, Panama, Mexico, and France), but the shapes of aedeagus and gonostylus shapes are markedly different.
|
||
<taxonomicName authorityName="Yu & Zhan" authorityYear="2005" class="Insecta" family="Ceratopogonidae" genus="Dasyhelea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dasyhelea (S.) pauca" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="pauca" subGenus="S.">Dasyhelea (S.) pauca</taxonomicName>
|
||
Yu and Zhan in Yu et al. 2005 (China) has somewhat similar shaped gonostylus and parameres, but the shape of the aedeagus is contrasting. The blend of characters stated in the diagnosis validates
|
||
<taxonomicName class="Insecta" kingdom="Animalia" lsidName="D. (S.) falxa" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="falxa" subGenus="S.">D. (S.) falxa</taxonomicName>
|
||
as a new member of this subgenus.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="51" type="distribution">
|
||
<paragraph pageId="0" pageNumber="51">Distribution.</paragraph>
|
||
<paragraph pageId="0" pageNumber="51">The specimens were collected from the Deltaic Proper of Gangetic West Bengal at an altitude of 8 meters above sea level - new species from India.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="51" type="ecological notes">
|
||
<paragraph pageId="0" pageNumber="51">Ecological notes.</paragraph>
|
||
<paragraph pageId="0" pageNumber="51">
|
||
Imagines of
|
||
<taxonomicName authorityName="Brahma & Chatterjee & Hazra" authorityYear="2023" class="Insecta" family="Ceratopogonidae" genus="Dasyhelea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dasyhelea (S.) falxa" order="Diptera" pageId="0" pageNumber="51" phylum="Arthropoda" rank="species" species="falxa" subGenus="S.">Dasyhelea (S.) falxa</taxonomicName>
|
||
sp. nov. were captured in proximity of shrub vegetation, close to a brackish water river (Fig.
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. A-E Photographs of collection sites where light traps were operated. A Collection site of Dasyhelea (Dasyhelea) incisura sp. nov.; B Collection site of Dasyhelea (D.) quasifulcillata sp. nov.; C Collection site of Dasyhelea (D.) trigona sp. nov. (adjacent fresh water river shown as different image at upper right corner); D Collection site of Dasyhelea (Sebessia) falxa sp. nov.; E. Collection site of Dasyhelea (S.) folia sp. nov. (adjacent brackish water river is same for both D and E, shown as different image at upper middle)." figureDoi="10.3897/evolsyst.7.90973.figure2" httpUri="https://binary.pensoft.net/fig/790302" pageId="0" pageNumber="51">2D</figureCitation>
|
||
) when the air temperature was 33-35 °C and the relative humidity was 80-82%.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |