171 lines
17 KiB
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171 lines
17 KiB
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.386.6913" ID-GBIF-Dataset="3a2df501-1763-4f11-a2ea-f9abaac99c00" ID-PMC="PMC3970064" ID-Pensoft-Pub="1313-2970-386-29" ID-PubMed="24693214" ID-ZBK="357FE9805295436EB40CFDD307D00D48" ModsDocAuthor="" ModsDocDate="2014" ModsDocID="1313-2970-386-29" ModsDocOrigin="ZooKeys 386" ModsDocTitle="The Megophthalmidia (Diptera, Mycetophilidae) of North America including eight new species" checkinTime="1451246199718" checkinUser="pensoft" docAuthor="Kerr, Peter H." docDate="2014" docId="A6D89543EAF80484306E83C837E10C95" docLanguage="en" docName="ZooKeys 386: 29-83" docOrigin="ZooKeys 386" docSource="http://dx.doi.org/10.3897/zookeys.386.6913" docTitle="Megophthalmidia browni Kerr, 2014, sp. n." docType="treatment" docUuid="D35852D1-4B12-4360-8565-54AC77009DE3" docUuidSource="ZooBank" docVersion="4" lastPageNumber="34" masterDocId="FFE4CC07FFFAC50AFFB0FFF4FFD6FFF4" masterDocTitle="The Megophthalmidia (Diptera, Mycetophilidae) of North America including eight new species" masterLastPageNumber="83" masterPageNumber="29" pageNumber="31" updateTime="1668157894205" 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>The Megophthalmidia (Diptera, Mycetophilidae) of North America including eight new species</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>Kerr, Peter H.</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>2014</mods:date>
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<mods:detail type="volume">
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<mods:number>386</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>29</mods:start>
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<mods:end>83</mods:end>
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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.386.6913</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.386.6913</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-386-29</mods:identifier>
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<mods:identifier type="ZBK">357FE9805295436EB40CFDD307D00D48</mods:identifier>
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<mods:identifier type="ZooBank">357FE9805295436EB40CFDD307D00D48</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152051503" LSID="urn:lsid:zoobank.org:act:D35852D1-4B12-4360-8565-54AC77009DE3" httpUri="http://treatment.plazi.org/id/A6D89543EAF80484306E83C837E10C95" lastPageId="5" lastPageNumber="34" pageId="2" pageNumber="31">
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<subSubSection pageId="2" pageNumber="31" type="nomenclature">
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<paragraph pageId="2" pageNumber="31">
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<taxonomicName LSID="http://zoobank.org/D35852D1-4B12-4360-8565-54AC77009DE3" class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="2" pageNumber="31" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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<taxonomicNameLabel pageId="2" pageNumber="31">sp. n.</taxonomicNameLabel>
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Figs 1-10
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="32" pageId="2" pageNumber="31" type="type material">
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<paragraph pageId="2" pageNumber="31">Type material.</paragraph>
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<paragraph pageId="2" pageNumber="31">
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Holotype: ♂, "USA: CA: Santa Barbara Co., UC Sedgwick Reserve, Malaise, 34.6853°N,-120.0461°W, 1-5.ii.2005 M. Caterino CSCA12L353" / "HOLOTYPE 12K450,
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="2" pageNumber="31" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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♂, Kerr, 2014" [red label]. Deposited in CSCA, mounted on gray point, complete specimen in good condition (Fig. 1).
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</paragraph>
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<paragraph pageId="3" pageNumber="32">
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<pageBreakToken pageId="3" pageNumber="32" start="start">Paratypes</pageBreakToken>
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(all bearing a blue paratype label): ♂, "USA: CA: Los Angeles Co., Brentwood
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<geoCoordinate direction="north" orientation="latitude" precision="555" value="34.07">34.07°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="555" value="-118.49">118.49°W</geoCoordinate>
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, 2-20.iii.2008 M. Schulman, MT, backyard garden CSCA08L642" [CSCA; locality Fig. 105, specimen # 12J952 (dissected, Figs 2-10)]; ♂, "USA: CA: Los Angeles Co., Brentwood
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<geoCoordinate direction="north" orientation="latitude" precision="555" value="34.07">34.07°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="555" value="-118.49">118.49°W</geoCoordinate>
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, 20.
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<normalizedToken originalValue="iii–">iii-</normalizedToken>
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9.iv.2008 M. Schulman, MT, backyard garden CSCA08L640" [CSCA; specimen # 09E060].
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</paragraph>
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<paragraph pageId="3" pageNumber="32">
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Additional material examined: 3 ♂♂, "MEX. Baja Calif. Norte, Arr. Santo Domingo, 5.7mi E. Hamilton Ranch / dam site, 18
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<normalizedToken originalValue="–IV–">-IV-</normalizedToken>
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1963, H.B. Leech, P.H. Arnaud, Jr." [CAS; one specimen dissected, specimen # 13M591].
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="33" pageId="3" pageNumber="32" type="diagnosis">
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<paragraph pageId="3" pageNumber="32">Diagnosis.</paragraph>
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<paragraph pageId="4" pageNumber="33">
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="browni">
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<pageBreakToken pageId="4" pageNumber="33" start="start">Megophthalmidia</pageBreakToken>
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browni
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</taxonomicName>
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sp. n. is most similar to
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia lenimenta" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="lenimenta">Megophthalmidia lenimenta</taxonomicName>
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sp. n. having epandria that have a medial furrow and central notch, with slender apical processes. In
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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, the apical epandrial processes are longer (Fig. 2) than in
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia lenimenta" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="lenimenta">Megophthalmidia lenimenta</taxonomicName>
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(Fig. 22), but differences between the species are more obvious in the aedeagal morphology.
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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bears a recurved aedeagal fork (Fig. 8) whereas in
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia lenimenta" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="lenimenta">Megophthalmidia lenimenta</taxonomicName>
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, this structure is lacking (Fig. 28).
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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may be distinguished from
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia ignea" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="ignea">Megophthalmidia ignea</taxonomicName>
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and
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia perignea" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="perignea">Megophthalmidia perignea</taxonomicName>
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by the shape of the apical epandrial processes (narrow elongate, as opposed to shortened) and from
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia mckibbeni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="mckibbeni">Megophthalmidia mckibbeni</taxonomicName>
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by the distinctive invagination of the apical epandrial processes at their base and the presence of a dorsally-reflexed bifurcation of the aedeagal fork (absent in
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia mckibbeni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="mckibbeni">Megophthalmidia mckibbeni</taxonomicName>
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). The aedeagal complex of
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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displays bifurcating tines of approximately the same width, in which the shorter fork is directed anteriorly (Fig. 8).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="34" pageId="4" pageNumber="33" type="description">
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<paragraph pageId="4" pageNumber="33">Description.</paragraph>
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<paragraph pageId="4" pageNumber="33">Male. Body length: 2.7-2.8, 2.1 [2.7] mm (n=2). Wing length: 2.6-2.8, 2.7 [2.8] mm (n=3).</paragraph>
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<paragraph pageId="4" pageNumber="33">Coloration (Fig. 1). Head dark brown; antennal scape dark brown, pedicel brown or bearing some cream-color or pale yellow, and flagellomeres brown; face dark brown, clypeus and labrum brown to dark brown; palps and labellum cream-colored to pale yellow (palpomeres 1 and 2 usually slightly darker than others, palpomere 2 with light patch where sensilla present). Thorax brown to dark brown throughout, except at the anterolateral margin of the dorsum and dorsal pronotal area, where it is cream-colored or pale yellow; scutum setae golden brown to dark brown. Coxae clearly lighter in color than thorax, cream-colored to pale yellow; femora cream-colored to light brown throughout (except sometimes slightly brown at dorsal apex); tibiae and tarsi cream-colored to pale yellow, with densely-arranged dark brown setae; hind tibial comb yellowish, preceded by 0-3 (usually 3) dark brown setae. Wing hyaline without markings, wing veins brown; haltere stem and knob white to cream-colored. Abdominal segments light brown to brown, darker laterally. Terminalia light brown to brown.</paragraph>
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<caption pageId="4" pageNumber="33">
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<paragraph pageId="4" pageNumber="33">
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Figure 1.
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="4" pageNumber="33" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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sp. n., habitus [holotype male, # 12K450; female unknown]. Scale bar = 1 mm.
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="34">
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<pageBreakToken pageId="5" pageNumber="34" start="start">Head</pageBreakToken>
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. Ocelli slightly raised, median ocellus in line with anterior margin of lateral ocelli, median ocellus approx. 0.5
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<normalizedToken originalValue="×">x</normalizedToken>
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size of lateral ocelli; lateral ocellus located approx. 2
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<normalizedToken originalValue="×">x</normalizedToken>
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diameter of ocellus from eye margin, separated from median ocellus by approx. 2.3
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<normalizedToken originalValue="–2.8×">-2.8x</normalizedToken>
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its own diameter. Eyes with microsetae, which are approximately as long as width of facet. Frons microtrichose, without setae, flattened. Antennal length 1.4-1.6, 1.5 [1.6] mm (n=3). Face clearly longer than wide, setose; clypeus and labrum microtrichose, without setae. Palpus with four palpomeres; palpomere 1 oblong, without setae; other palpomeres with brown setae; palpomere 2 bearing small pocket of sensilla; palpomere 1 length longer than or subequal in length to palpomere 2; palpomere 3 length shorter than combined length of palpomeres 1 and 2; palpomere 4 subequal in length to combined length of palpomeres 2 and 3.
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</paragraph>
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<paragraph pageId="5" pageNumber="34">
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Thorax. Dorsum with evenly-distributed, short, appressed setae, bearing longer setae only along lateral and posterior margins. Antepronotum, proepisternum, and laterotergite bearing setae; remaining lateral thoracic sclerites bare. Costal wing vein extends beyond R5, approx. two-thirds distance between R5 and M1; R1 approximately the same length as r-m or slightly longer; cubital fork proximad of r-m base (as in
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia occidentalis" order="Diptera" pageId="5" pageNumber="34" phylum="Arthropoda" rank="species" species="occidentalis">Megophthalmidia occidentalis</taxonomicName>
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, Fig. 52); R1, M1, M2, CuA1, and CuA2 with setae on upper surface (lacking setae on M1 + M2). Wing veins A1 and CuP absent.
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</paragraph>
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<paragraph pageId="5" pageNumber="34">
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Male genitalia (Figs 2-10). Epandrium dorsal surface with clear medial depression, where setae are lacking; posterior margin narrowly emarginate at center (Fig. 4). Posterior processes of epandrium elongate, approx. 5
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<normalizedToken originalValue="–6×">-6x</normalizedToken>
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longer than wide, separated at base by approx. 1
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<normalizedToken originalValue="×">x</normalizedToken>
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width of process, length of setae at base of epandrial processes 2
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<normalizedToken originalValue="–3×">-3x</normalizedToken>
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width of process, bare along most of length (Figs 2, 3). Gonocoxites as in Figs 5-7. Aedeagal fork bifurcated into elongated tines of similar width; shorter tine recurved to point anteriorly, longer tine curved outward (Figs 8-10).
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</paragraph>
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<caption pageId="5" pageNumber="34">
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<paragraph pageId="5" pageNumber="34">
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Figures 2-4.
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="5" pageNumber="34" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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sp. n., male epandrium [paratype, # 12J952] 2 Lateral view 3 Posterior view 4 Dorsal view. Scale bar = 0.1 mm. Abbreviations: ael apical epandrial lobe.
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</paragraph>
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</caption>
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<caption pageId="5" pageNumber="34">
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<paragraph pageId="5" pageNumber="34">
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Figures 5-7.
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="5" pageNumber="34" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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sp. n., male hypandrium [paratype, # 12J952] 5 Lateral view 6 Dorsal view 7 Ventral view. Scale bar = 0.1 mm.
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</paragraph>
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</caption>
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<caption pageId="5" pageNumber="34">
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<paragraph pageId="5" pageNumber="34">
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Figures 8-10.
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<taxonomicName class="Insecta" family="Mycetophilidae" genus="Megophthalmidia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megophthalmidia browni" order="Diptera" pageId="5" pageNumber="34" phylum="Arthropoda" rank="species" species="browni">Megophthalmidia browni</taxonomicName>
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sp. n., male aedeagus [paratype, # 12J952] 8 Lateral view 9 Dorsal view 10 Posterior view. Scale bar = 0.1 mm. Abbreviations: urt upward recurved tine.
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="34">Female unknown.</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="34" type="etymology">
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<paragraph pageId="5" pageNumber="34">Etymology.</paragraph>
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<paragraph pageId="5" pageNumber="34">
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The species epithet
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<normalizedToken originalValue="“browni”">"browni"</normalizedToken>
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is a noun in the genitive case, named in honor of Brian V. Brown, friend, colleague, mentor, and Curator, Natural History Museum of Los Angeles County.
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</paragraph>
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</subSubSection>
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</treatment>
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</document>
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