197 lines
19 KiB
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197 lines
19 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.225.3721" ID-GBIF-Dataset="1301ded3-c86d-4e07-aae6-dd84e348cd25" ID-PMC="PMC3487652" ID-Pensoft-Pub="1313-2970-225-1" ID-PubMed="23166461" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-225-1" ModsDocOrigin="ZooKeys 225" ModsDocTitle="A revision of the genus Planinasus Cresson (Diptera, Periscelididae)" checkinTime="1451248711591" checkinUser="pensoft" docAuthor="Mathis, Wayne N., Rung, Alessandra & Kotrba, Marion" docDate="2012" docId="A1C97A7BA5AE0005E40FB3B078FCD5AD" docLanguage="en" docName="ZooKeys 225: 1-83" docOrigin="ZooKeys 225" docSource="http://dx.doi.org/10.3897/zookeys.225.3721" docTitle="Planinasus nigrifacies Mathis, Rung & Kotrba, 2012, sp. n." docType="treatment" docVersion="4" lastPageNumber="63" masterDocId="5C00FF9EFFDAFF805469564E9829FF97" masterDocTitle="A revision of the genus Planinasus Cresson (Diptera, Periscelididae)" masterLastPageNumber="83" masterPageNumber="1" pageNumber="59" updateTime="1668154510379" 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>A revision of the genus Planinasus Cresson (Diptera, Periscelididae)</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>Mathis, Wayne N.</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>Rung, Alessandra</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>Kotrba, Marion</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>2012</mods:date>
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<mods:detail type="volume">
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<mods:number>225</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>83</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.225.3721</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.225.3721</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-225-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152037206" LSID="urn:lsid:zoobank.org:act:30CD293D-E230-4142-B007-ECF8ECE36B2D" httpUri="http://treatment.plazi.org/id/A1C97A7BA5AE0005E40FB3B078FCD5AD" lastPageId="63" lastPageNumber="63" pageId="58" pageNumber="59">
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<subSubSection pageId="58" pageNumber="59" type="nomenclature">
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<paragraph pageId="58" pageNumber="59">
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17.
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<taxonomicName LSID="urn:lsid:zoobank.org:act:30CD293D-E230-4142-B007-ECF8ECE36B2D" class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus nigrifacies" order="Diptera" pageId="58" pageNumber="59" phylum="Arthropoda" rank="species" species="nigrifacies">Planinasus nigrifacies</taxonomicName>
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<taxonomicNameLabel pageId="58" pageNumber="59">sp. n.</taxonomicNameLabel>
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Figures 87-90
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="61" lastPageNumber="62" pageId="58" pageNumber="59" type="description">
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<paragraph pageId="58" pageNumber="59">Description of male.</paragraph>
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<paragraph pageId="58" pageNumber="59">Moderately small to medium-sized flies, body length 2.50-3.50 mm.</paragraph>
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<paragraph pageId="59" pageNumber="60">
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<pageBreakToken pageId="59" pageNumber="60" start="start">Head</pageBreakToken>
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: Head ratio 0.64-0.66; frons generally brownish black to black, mostly very finely and sparsely microtomentose, subshiny to shiny, except for densely microtomentose, velvet-like anterolateral angles and anterior margin; anterolateral angles setulose; frons wider than long, frontal ratio 0.45-0.47; interfrontal seta shallowly curved, elongate, length subequal to length of lateral vertical seta. Antenna black; basal flagellomere variable but usually short, length usually not exceeding height at base, tapered to moderately acute point at apex, both dorsal and ventral margins nearly straight to very shallowly depressed dorsally and arched ventrally; pedicel with ventral projection short, length of projection conspicuously less than length of pedicel without considering projection, bearing long, ventroapical seta (extended slightly beyond apex of basal flagellomere), 1 dorsal seta, 1 dorsomedial seta, 1 medial seta; arista bearing 13-14 dorsal rays, 3-4 ventral rays. Face comparatively narrow, facial ratio 0.45-0.48; dorsad of transverse carina sparsely microtomentose, subshiny to shiny, mostly brownish black to deeply bluish black; ventrad of transverse carina densely microtomentose, silvery white, sericeous; large facial setae arranged in 2 transverse rows of 6 setae; medial pair of dorsal row widely separate, shallowly dorsoclinate; next 2 setae shallowly ventroclinate; ventral row of facial setae all ventroclinate. Clypeus black with whitish gray microtomentum; palpus brownish black.
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</paragraph>
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<paragraph lastPageId="60" lastPageNumber="61" pageId="59" pageNumber="60">
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Thorax: Mesonotum generally brownish black to deep bluish black, thinly microtomentose, subshiny to shiny; postpronotum brown, some specimens with some
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<pageBreakToken pageId="60" pageNumber="61" start="start">yellowish</pageBreakToken>
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coloration around margin; area from postpronotum and through notopleuron at most finely and thinly microtomentose, subshiny to shiny; pleural areas finely microtomentose, subshiny, blackish brown; anepisternum mostly bare but with 2-3 setulae along posterior margin; katepisternum generally setulose, bearing 2 setae toward dorsal margin. Wing without pattern, generally infumate with some areas more hyaline. Coxae generally brown to brownish black with gray to whitish gray microtomentum; midcoxa with medial portion yellowish, lateral portion blackish brown; trochanters yellowish brown; femora and tibiae uniformly brownish black; forefemur lacking a preapical annulus; tarsi mostly yellowish basally, apical 2-3 tarsomeres becoming darker; forefemur bearing 1 seta at apical 1/3 along posteroventral surface.
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</paragraph>
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<paragraph lastPageId="61" lastPageNumber="62" pageId="60" pageNumber="61">
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Abdomen: Uniformly blackish brown, mostly dull to faintly subshiny, moderately invested with microtomentum. Male abdomen: Tergites 1+2-6 well developed, lengths of 3-6 subequal; tergite 7 well developed but narrow, band-like; sternites 3-5 well developed, rectangular, wider than long, lateral margins shallowly arched; sclerotized posterior margin of sternite 5 shallowly incised medially; sternite 6 apparently lacking; sternite 7 moderately well developed, much wider than long, but
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<pageBreakToken pageId="61" pageNumber="62" start="start">not</pageBreakToken>
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fused with tergite 7 to form an annulus. Male terminalia (Figs 87-89): Epandrium in lateral view (Fig. 87) trapezoidal, higher than wide, narrowed dorsally, anterior margin nearly straight, posterior margin straight on dorsal 2/3 thereafter ventrally forming a robust truncate extension; surstylus almost as long as epandrium, extended from ventral margin of epandrium in nearly oblique alignment with it, in lateral view (Fig. 87) elongate, robustly developed basally, distinctly tapered, apex recurved, anterior margin deeply arched, posterior margin swollen medially, apical 1/4 tapered to moderately acute point, partially recurved, bearing medial, elongate setula from posteromedial extension; hypandrium in ventral view (Fig. 88) moderately robustly U- to V-shaped, posterior margin U-shaped, anterior margin truncate, arms tapered toward attachment with epandrium, anterior portion robustly developed with lateral margins nearly straight; postgonite in ventral view (Fig. 88) convoluted, with relatively short lobe bearing apical setula, in lateral view (Fig. 89) with lobe very shallowly extended, bearing 3 apical, short setulae; phallus in ventral view and lateral views (Figs 88, 89) mostly membranous and difficult to discern; phallapodeme in lateral and ventral views (Figs 88-89) elongate, irregularly parallel sided, truncate apically; ejaculatory apodeme greatly reduced.
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</paragraph>
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<caption pageId="61" pageNumber="62">
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<paragraph pageId="61" pageNumber="62">
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Figures 87-89. Illustrations of
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus nigrifacies" order="Diptera" pageId="61" pageNumber="62" phylum="Arthropoda" rank="species" species="nigrifacies">Planinasus nigrifacies</taxonomicName>
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sp. n. (male). 87 epandrium, surstylus, hypandrium, lateral view 88 structures of internal male terminalia, ventral view 89 internal structures of male terminalia, lateral view. Scale bar = 0.1 mm.
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</paragraph>
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</caption>
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<caption pageId="61" pageNumber="62">
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<paragraph pageId="61" pageNumber="62">
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Figure 90. Distribution of
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus nigrifacies" order="Diptera" pageId="61" pageNumber="62" phylum="Arthropoda" rank="species" species="nigrifacies">Planinasus nigrifacies</taxonomicName>
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sp. n.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="61" pageNumber="62" type="description">
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<paragraph pageId="61" pageNumber="62">Description of female.</paragraph>
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<paragraph pageId="61" pageNumber="62">As in male except as follows: Head generally narrower, head ratio 0.86-89; frontal ratio 0.54-0.57; facial ratio 0.33-0.36.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="62" lastPageNumber="63" pageId="61" pageNumber="62" type="type material">
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<paragraph pageId="61" pageNumber="62">Type material.</paragraph>
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<paragraph lastPageId="62" lastPageNumber="63" pageId="61" pageNumber="62">
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The holotype male is labeled "BRAZIL.
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<normalizedToken originalValue="São">Sao</normalizedToken>
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Paulo: Mogi das Cruzes, Serra do Itapeti, 29 March 1992[,] R. & A. Baptista/USNM ENT 00118280
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<pageBreakToken pageId="62" pageNumber="63" start="start">[</pageBreakToken>
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plastic bar code label]/HOLOTYPE ♂
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus nigrifacies" order="Diptera" pageId="62" pageNumber="63" phylum="Arthropoda" rank="species" species="nigrifacies">Planinasus nigrifacies</taxonomicName>
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Mathis & Rung MZUSP [red]." Ten paratypes (7♂, 3♀; MZUSP, USNM) bear the same label data as the holotype. The holotype is double mounted (glued to a paper point), is in very good condition (some cephalic setae misoriented), and is deposited in MZUSP.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="62" pageNumber="63" type="type locality">
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<paragraph pageId="62" pageNumber="63">Type locality.</paragraph>
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<paragraph pageId="62" pageNumber="63">
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Brazil.
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<normalizedToken originalValue="São">Sao</normalizedToken>
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Paulo: Mogi das Cruzes, Serra do Itapeti (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-23.525">23°31.5'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-46.18667">46°11.2'W</geoCoordinate>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="62" pageNumber="63" type="other specimens examined">
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<paragraph pageId="62" pageNumber="63">Other specimens examined.</paragraph>
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<paragraph pageId="62" pageNumber="63">
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BRAZIL. Minas Gerais: Lavras (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-21.245">21°14.7'S</geoCoordinate>
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, 45°W), 20 Jul 1992, A. and R. Baptista (11♂, 8♀; MZUSP, USNM). Rio de Janeiro: Nova Friburgo (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-22.286667">22°17.2'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="925" value="-42.533333">42°32'W</geoCoordinate>
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), 1 May 1995, A. and R. Baptista (3♂; USNM). Rio de Janeiro, Floresta da Tijuca (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-22.96">22°57.6'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-43.273335">43°16.4'W</geoCoordinate>
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), 30 Jul 1991, A. and R. Baptista (1♂; MZUSP); Parque Estadual do Desengano (near Santa Maria Madgalena;
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<geoCoordinate direction="south" orientation="latitude" precision="925" value="-21.883333">21°53'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="925" value="-41.916668">41°55'W</geoCoordinate>
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), 19-23 Dec 1991, A. and R. Baptista (1♂; MZUSP); Parque Nacional de Itatiaia, Maromba (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-22.495">22°29.7'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-44.56167">44°33.7'W</geoCoordinate>
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), 13-17 Dec 1991, A. and R. Baptista (2♀; MZUSP).
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<normalizedToken originalValue="São">Sao</normalizedToken>
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Paulo:
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<normalizedToken originalValue="São">Sao</normalizedToken>
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Paulo,
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<normalizedToken originalValue="Jaraguá">Jaragua</normalizedToken>
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(
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-22.735">22°44.1'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="925" value="-47.666668">47°40'W</geoCoordinate>
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), 9 Dec 1990, A. and R. Baptista (1♂; MZUSP);
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<normalizedToken originalValue="São">Sao</normalizedToken>
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Paulo, Jardim
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<normalizedToken originalValue="Botânico">Botanico</normalizedToken>
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(
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<geoCoordinate direction="south" orientation="latitude" precision="925" value="-23.65">23°39'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="925" value="-46.616665">46°37'W</geoCoordinate>
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), 11 Feb 1992, A. and R. Baptista (1♂, 1♀; MZUSP).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="62" pageNumber="63" type="distribution">
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<paragraph pageId="62" pageNumber="63">Distribution</paragraph>
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<paragraph pageId="62" pageNumber="63">
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(Fig. 90). Neotropical: Brazil (Minas Gerais, Rio de Janeiro,
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<normalizedToken originalValue="São">Sao</normalizedToken>
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Paulo).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="62" pageNumber="63" type="etymology">
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<paragraph pageId="62" pageNumber="63">Etymology.</paragraph>
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<paragraph pageId="62" pageNumber="63">The species epithet, nigrifacies, is derived from Latin and refers to the black face, including the all black antenna.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="63" lastPageNumber="64" pageId="62" pageNumber="63" type="remarks">
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<paragraph pageId="62" pageNumber="63">Remarks.</paragraph>
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<paragraph pageId="62" pageNumber="63">
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In the key to species, this species is close to
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus mcalpineorum" order="Diptera" pageId="62" pageNumber="63" phylum="Arthropoda" rank="species" species="mcalpineorum">Planinasus mcalpineorum</taxonomicName>
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. Besides the distribution and characters given in the key, the unique shape of the surstylus (Fig. 87) can be used to distinguish this species readily from congeners.
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</paragraph>
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<subSection lastPageId="63" lastPageNumber="64" pageId="62" pageNumber="63" type="the obscuripennis group">
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<paragraph pageId="62" pageNumber="63">The obscuripennis group</paragraph>
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<paragraph pageId="62" pageNumber="63">
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Included species.
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus obscuripennis" order="Diptera" pageId="62" pageNumber="63" phylum="Arthropoda" rank="species" species="obscuripennis">Planinasus obscuripennis</taxonomicName>
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sp. n.
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</paragraph>
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<paragraph pageId="62" pageNumber="63">Diagnosis. This species group is distinguished by the following combination of characters: Head: Interfrontal seta elongate, length subequal to length of lateral vertical seta. Scape and pedicel black; basal flagellomere pale, mostly yellowish on basal but black apically and faintly so dorsally, elongate, length much greater than height at base, tapered to moderately acute apex, dorsal margin shallow depressed, ventral margin shallowly arched. Large facial setae arranged in 2 transverse rows; dorsal transverse row consisting of 1 pair of separate, well-developed, dorso- to inclinate setae; ventral row arched, comprising 6 ventroclinate setae about equidistant from peristomal margin; face of males and females similar in shape and color. Thorax: Anepisternum mostly bare but with 2-3 setulae along posterior margin. Wing generally conspicuously and darkly infumate with base more hyaline. Forefemur with a preapical annulus, bearing 1 seta at apical 1/3 along posteroventral surface. Abdomen: Surstylus in nearly oblique alignment with epandrium, not a posterior process, or lobe; postgonite with a digitiform lobe bearing a few setulae apically; phallus mostly sclerotized; aejaculatory apodeme greatly reduced.</paragraph>
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<paragraph lastPageId="63" lastPageNumber="64" pageId="62" pageNumber="63">
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Discussion. This species group currently comprises a single species,
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus obscuripennis" order="Diptera" pageId="62" pageNumber="63" phylum="Arthropoda" rank="species" species="obscuripennis">Planinasus obscuripennis</taxonomicName>
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. It shares, with species of the atriclypeus and shannoni groups, the reduced number of setae
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<pageBreakToken pageId="63" pageNumber="64" start="start">on</pageBreakToken>
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the lobe of the postgonite (2-6), and the ejaculatory apodeme is generally reduced or inconspicuous. In all other species of
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<taxonomicName class="Insecta" family="Periscelididae" genus="Planinasus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Planinasus" order="Diptera" pageId="63" pageNumber="64" phylum="Arthropoda" rank="genus">Planinasus</taxonomicName>
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, the lobe of the postgonite, which is generally better developed, bears more than 20 setulae, and the ejaculatory apodeme is large, with a fan-like apical expansion. We recognize this group by the characters noted above but also by the unique structures associated with the male pre- and postabdomen. Among these characters are the apparent fusion of sternites 4+5 and a well-developed sternite 6, which is broadly produced medioposteriorly to form a shallowly bifurcate projection. In addition, the ejaculatory apodeme is short and its apex is not expanded.
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</paragraph>
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</subSection>
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</subSubSection>
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</treatment>
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</document> |