144 lines
16 KiB
XML
144 lines
16 KiB
XML
<document id="3A4AB561B9836D624471E1DC5097C963" ID-DOI="http://dx.doi.org/10.3897/AfrInvertebr.57.8696" ID-GBIF-Dataset="dffce400-a1b8-4e08-863a-5082c6745bf2" ID-Pensoft-Pub="2305-2562-1-67" ID-ZooBank="17A94A5084C2469DAE1DA9E2A78C502B" ModsDocAuthor="" ModsDocDate="2016" ModsDocID="2305-2562-1-67" ModsDocOrigin="African Invertebrates 57 (1)" ModsDocTitle="A review of the genus Gibbasilus Londt, 1986 in southern Africa (Diptera, Asilidae)" checkinTime="1468017305404" checkinUser="pensoft" docAuthor="Londt, Jason G. H." docDate="2016" docId="F6B96B9FB0B8D86EBD481D1A3A0784FC" docLanguage="en" docName="AfrInvert 57(1): 67-81" docOrigin="African Invertebrates 57 (1)" docSource="http://dx.doi.org/10.3897/AfrInvertebr.57.8696" docTitle="Gibbasilus condylus Londt, 2016, sp. n." docType="treatment" docUuid="05FD0B63-7794-4BE7-8A88-57900F8A8B5A" docUuidSource="ZooBank" docVersion="7" lastPageNumber="76" masterDocId="2A2BBE684276A033A53B5268FFFF2036" masterDocTitle="A review of the genus Gibbasilus Londt, 1986 in southern Africa (Diptera, Asilidae)" masterLastPageNumber="81" masterPageNumber="67" pageNumber="73" updateTime="1701315758028" updateUser="plazi">
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<mods:title id="16F763A503B7B94734D278C7829FDE17">A review of the genus Gibbasilus Londt, 1986 in southern Africa (Diptera, Asilidae)</mods:title>
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<mods:name id="B022A7125CC2C214450C06EBEBBD492C" type="personal">
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<mods:namePart id="D4EAE6CE93C101684F960CF804061499">Londt, Jason G. H.</mods:namePart>
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<mods:typeOfResource id="3EE3A00D940AFD24113538CE152E18E3">text</mods:typeOfResource>
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<mods:titleInfo id="7CF1CEC19B61677D7DA652EE54DF0985">
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<mods:title id="7818F8E590B06396ACDAEB46E5D63B3E">African Invertebrates</mods:title>
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</mods:titleInfo>
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<mods:part id="CBE6B5F1808B12DEBAAB3699CB3D4D31">
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<mods:date id="F9CC7E9991538135375B4844C3009221">2016</mods:date>
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<mods:number id="BA75B171829B545CB64E8914BF19DAE9">57</mods:number>
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<mods:number id="20286B55DE8990F7C507C2DB8FC49F10">1</mods:number>
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<mods:url id="2F96EF3B7699432CC63D5677FFAB1B76">http://dx.doi.org/10.3897/AfrInvertebr.57.8696</mods:url>
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<mods:classification id="F2268FA73CE571D1A42DC8A6A427F7B4">journal article</mods:classification>
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<mods:identifier id="20EAD0864C1BB2EED9C5FE2EACC89A60" type="DOI">http://dx.doi.org/10.3897/AfrInvertebr.57.8696</mods:identifier>
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<treatment id="F6B96B9FB0B8D86EBD481D1A3A0784FC" ID-GBIF-Taxon="127879933" LSID="urn:lsid:zoobank.org:act:05FD0B63-7794-4BE7-8A88-57900F8A8B5A" httpUri="http://treatment.plazi.org/id/F6B96B9FB0B8D86EBD481D1A3A0784FC" lastPageId="9" lastPageNumber="76" pageId="6" pageNumber="73">
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<subSubSection id="3CE4F3D275F67FA793657A3FBEBC2BED" pageId="6" pageNumber="73" type="multiple">
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<paragraph id="7B89A9B97CF84E8AF02510B10C7D86FA" pageId="6" pageNumber="73">Taxon classification Animalia Diptera Asilidae</paragraph>
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</subSubSection>
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<subSubSection id="1FF138FE7B60492AA969933FD842A2FF" pageId="6" pageNumber="73" type="nomenclature">
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<paragraph id="CB89039C8E4E249A554AAB77FE727588" pageId="6" pageNumber="73">
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<taxonomicName id="A32FB2DC1EB47C48E74FA3A269C380C9" LSID="http://zoobank.org/05FD0B63-7794-4BE7-8A88-57900F8A8B5A" class="Insecta" family="Asilidae" genus="Gibbasilus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gibbasilus condylus" order="Diptera" pageId="6" pageNumber="73" phylum="Arthropoda" rank="species" species="condylus">Gibbasilus condylus</taxonomicName>
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<taxonomicNameLabel id="A64B3EF5885C3C2148C407D0B47D80EB" pageId="6" pageNumber="73">sp. n.</taxonomicNameLabel>
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Figs 9, 11-14, 15, 20B
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</paragraph>
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</subSubSection>
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<subSubSection id="F3A3642FAB9757DBA6519F67D99CAEBA" pageId="7" pageNumber="74" type="etymology">
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<paragraph id="6812AF26B9EB803ED242F348DF87C3F9" pageId="7" pageNumber="74">
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<pageBreakToken id="D8DCEC5EFF1E5F1CDCAD61EB0407D5A4" pageId="7" pageNumber="74" start="start">Etymology</pageBreakToken>
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.
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</paragraph>
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<paragraph id="4806C8A8827706F293CEB8500AA9F3E2" pageId="7" pageNumber="74">
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L. m.
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<taxonomicName id="9843E7CAF9B667E279DC75A96644619D" lsidName="condylus" pageId="7" pageNumber="74" rank="species" species="condylus">condylus</taxonomicName>
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- prominence; refers to the lobed S8 in males.
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</paragraph>
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</subSubSection>
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<subSubSection id="9054C7F72089221876B523B456121648" lastPageId="8" lastPageNumber="75" pageId="7" pageNumber="74" type="description">
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<paragraph id="C56E623C39761540D693645977A0D099" pageId="7" pageNumber="74">Description.</paragraph>
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<paragraph id="9493F68D923A4175DF420C0B8CB12C08" pageId="7" pageNumber="74">Based on 2♂ and 6♀.</paragraph>
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<paragraph id="9D8D72A004327EF468D0F62B354C23A7" pageId="7" pageNumber="74">Head: Black, silver pruinose, black, pale yellow and white setose. Antenna: Black, fine silver pruinose, scape and pedicel black setose. Segmental ratios (scape as 1) = 1: 0.7: 1.4: 0.8 (style = 0.2, 0.5, 0.1). Style composed of three elements (small basal segment-like element, long middle rod-like element, terminal seta-like sensory element). Face black, fine silver pruinose, profile plane. Mystax long, well-developed, extending from epistomal margin to antennal sockets, macrosetae white along epistomal margin, otherwise black. Frons and vertex black, silver pruinose, fine, long, black setose. Ocellar tubercle with long, fine, black setae. Occipital region black, silver pruinose, black setose dorsally (may be a few orange), pale yellow laterally, fine white setose ventrally. Palpi 2-segmented, segment 1 white setose, 2 black setose. Proboscis shiny dark red-brown to black, fine white setose.</paragraph>
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<paragraph id="A40E71606AF990261E7B78E5343F4DE9" lastPageId="8" lastPageNumber="75" pageId="7" pageNumber="74">
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Thorax: Dark red-brown to black, fine, dull, silver pruinose, black, pale orange, pale yellow and white setose. Pronotum dark red-brown to black, white setose. Mesonotum black, entirely dull silver pruinose. Acrostichals numerous, mane-like, predominantly black except for few white setae anteriorly and a cluster of fine white setae posteriorly. Dorsocentrals well-developed, black, extending both anterior and posterior of transverse suture. Mesonotal macrosetae: Strong, orange and black, 2 npl (orange), 2 spal (black), 1 pal (black). Scutellum black, entirely silver pruinose; disc fine white setose, 2 long, black apical scutellar macrosetae. Pleura: Dark red-brown to black, entirely silver pruinose, pale yellow and white setose. Katatergal setae pale yellowish. Anatergites uniformly dull silver pruinose, asetose. Mediotergite weakly fine white setose medially. Legs: Coxae dark red-brown to black, fine, dull silver pruinose, fine white setose. Trochanters shiny black, apruinose, fine white setose. Femora slightly inflated, dark red-brown to black except for narrow orange distal tip, macrosetae mostly yellowish
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<pageBreakToken id="1625250B86B0B4C48C96FDC4A5734BE5" pageId="8" pageNumber="75" start="start">(</pageBreakToken>
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except for 3-5 black proximoventral setae on fore femora). Tibiae mostly brown-orange becoming progressively darker distally, macrosetae mostly orange (a few black at distal tip). Tarsi dark red-brown with black and orange macrosetae. Claws dark red-brown to black, pulvilli and empodia well developed, brown-orange. Wings: ♂ 7.6 (7.4-7.8)
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<normalizedToken id="91E2E72B62E196BC30899C5C8F8353F9" originalValue="×">x</normalizedToken>
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2.6 mm, ♀ 7.6 (6.3-8.6)
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<normalizedToken id="1984EE114C1979EE42F4066667A8A403" originalValue="×">x</normalizedToken>
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2.5 (2.1-2.9) mm. Veins brown, cells r1, m3, and cua closed and stalked, membrane unstained (wing tip may be slightly brown stained), entirely transparent and lacking microtrichia. Halter pale yellow to orange.
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</paragraph>
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<paragraph id="64D033793D9E9E7BAEFD1EF6AA11D48D" pageId="8" pageNumber="75">Abdomen: Entirely dark red-brown to black, extensively dull silver pruinose, except lateral margins of T2-5 and parts of S2-2 which are shiny apruinose. Terga fine short white setose except for narrow medial strip of fine black setae, T1-6 with 1-3 laterally situated pale yellow macrosetae (progressively diminishing in size and number towards terminalia). Sterna fine, longish setose. ♂ genitalia (Figs 11-14): Epandrium almost three times longer than deep in lateral view, with widest part proximal to mid-length; not very broadly rounded distally; lobes gradually diverging distally in dorsal view. Gonocoxite almost ⅓ as long as epandrium, smoothly rounded distally. Gonostylus elongate, almost half the length of epandrium, of approximately same width for entire length in ventral view, distally with a subtriangular upwardly directed process, best appreciated in lateral view. Hypandrium short, about four times as wide as long in ventral view, distal margin very slightly indented medially. Aedeagus long and thin, slightly dorsoventrally compressed, S-shaped distally, terminating in a 3-pronged tip. Posterior margin of S8 slightly indented medially with a terminal subrectangular, dorsoventrally compressed process projecting to approximately midlength of hypandrium. ♀ ovipositor (Fig. 9): Elongate, laterally compressed and knife-like. Length: depth ratio = 2.7: 1 (more robust when compared with other species).</paragraph>
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<caption id="DB9E7997BA180BFF4D29DE46A77940E3" pageId="8" pageNumber="75">
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<paragraph id="E460EB2021C78F8FB0C6CAC17610BE11" pageId="8" pageNumber="75">
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Figures 11-14.
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<taxonomicName id="E3F9037FE34145F583ED2A221CE08A87" class="Insecta" family="Asilidae" genus="Gibbasilus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gibbasilus condylus" order="Diptera" pageId="8" pageNumber="75" phylum="Arthropoda" rank="species" species="condylus">Gibbasilus condylus</taxonomicName>
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sp. n. ♂ terminalia, lateral (11), dorsal (12), ventral (13), detail of gonostylus and aedeagus (14).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="C13DD3BD7C821B54885C67374423E823" pageId="9" pageNumber="76" type="holotype">
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<paragraph id="9A278A4E2B41D1539485EBFC308B9E6B" pageId="9" pageNumber="76">
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<pageBreakToken id="C9427DDE5F05A22BA2917572C3086D9B" pageId="9" pageNumber="76" start="start">Holotype</pageBreakToken>
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.
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</paragraph>
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<paragraph id="54B7F44101A27BD567BD1B84931619CC" pageId="9" pageNumber="76">
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SOUTH AFRICA: 1♂ "South Africa W Cape / Kagga Kamma Nat. Res. /
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<geoCoordinate id="4C196E1C8FDB6E3FADBA2C88A6F9C12B" direction="south" orientation="latitude" precision="15" value="-32.753334">32°45'12"S</geoCoordinate>
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,
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<geoCoordinate id="CAFDCC64F590E1E913CB734954846224" direction="east" orientation="longitude" precision="15" value="19.573057">019°34'23"E</geoCoordinate>
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/ J&A Londt 12.xi.2015 / 1080 m Sandy vynbos" (NMSA).
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</paragraph>
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</subSubSection>
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<subSubSection id="B498E1BFA10DDC9D97608C112843C3E8" pageId="9" pageNumber="76" type="paratypes">
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<paragraph id="0AE67F324FD404088056A6F9EF5A2670" pageId="9" pageNumber="76">Paratypes.</paragraph>
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<paragraph id="AB6388D3A8CFEF721DCB8C7776F22D78" pageId="9" pageNumber="76">
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4♀ "S Africa, Cape #65 / 22 km S Vanrhynsdorp /
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<geoCoordinate id="09332D8CA2C27E792F185D11AA96F76E" direction="south" orientation="latitude" precision="925" value="-31.766666">31°46'S</geoCoordinate>
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,
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<geoCoordinate id="90A7F0FCA1993B986F837FB920CCCB19" direction="east" orientation="longitude" precision="925" value="18.766666">18°46'E</geoCoordinate>
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600 m / Date: 23.xi.1991 / Coll: J.G.H. Londt / Gifberg Edge old land" (NMSA); 1♀ "S Africa, Cape #65 / 14 km NNW Citrusdal /
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<geoCoordinate id="FAEB4429CBC5D7E3994E8E091EFA696A" direction="south" orientation="latitude" precision="925" value="-32.516666">32°31'S</geoCoordinate>
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,
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<geoCoordinate id="64086CC60694B5ACF24C3B63F055F4BC" direction="east" orientation="longitude" precision="925" value="18.966667">18°58'E</geoCoordinate>
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300 m / Date: 1.xi.1991 / Coll: J.G.H. Londt / Woody plants; sandy" (NMSA); 1♀ with identical label data as holotype (NMSA); 1♂ "Michells Pass [c.
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<geoCoordinate id="75613B250471AF3675BB9A1C12766B4E" direction="south" orientation="latitude" precision="925" value="-33.383335">33°23'S</geoCoordinate>
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,
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<geoCoordinate id="35AF19CE889FA75BDBA2098D7D22440A" direction="east" orientation="longitude" precision="925" value="19.3">19°18'E</geoCoordinate>
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, 485 m] / Ceres Div.", " Museum Staff / Oct. 1934" (SAM).
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</paragraph>
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</subSubSection>
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<subSubSection id="5051B05A63A70077DE02FA2750590A46" pageId="9" pageNumber="76" type="remarks">
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<paragraph id="6D09462D52D43B7215513F740AC143CB" pageId="9" pageNumber="76">Remarks.</paragraph>
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<paragraph id="F4CB74F1F23EBBC968CD207C706038A6" pageId="9" pageNumber="76">
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As mentioned earlier, this species bears a strong resemblance to
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<taxonomicName id="42C9634A6422F59E8EDB73FA6BD004F5" lsidName="alboala" pageId="9" pageNumber="76" rank="species" species="alboala">alboala</taxonomicName>
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sp. n. (described above), but can easily be separated from that species as it has entirely transparent wing membranes, lacking the somewhat opaque, milky basal wing membranes diagnostic for
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<taxonomicName id="B99747283E515C53841BA2592FB49045" lsidName="alboala" pageId="9" pageNumber="76" rank="species" species="alboala">alboala</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="86A8C86346148B3D20288FD72DC99095" pageId="9" pageNumber="76" type="distribution">
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<paragraph id="54490ACBEED759DADD19FD5C400C5181" pageId="9" pageNumber="76">Distribution (Fig. 20B), phenology (Table 1) and biology.</paragraph>
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<paragraph id="D2656F5174199EC7FE2D6F0026348B33" pageId="9" pageNumber="76">
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Known from four fairly widely separated localities. Collected during the months of October and November. Specimens collected by me, at three localities, were found perching near the tops of the vertical stems of a tall unidentified species belonging to the
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<taxonomicName id="54E615FD224A423D4968092F8666F35D" family="Restionaceae" lsidName="" pageId="9" pageNumber="76" rank="family">Restionaceae</taxonomicName>
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or sunning themselves on stones. A typical habitat at the Kagga Kamma Nature Reserve is illustrated (Fig. 15). Although oviposition was not observed, it is probable that females use their knife-like ovipositors to insert eggs into suitable crevices found on these plants. The species is found sympatrically with
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<taxonomicName id="C560940D87C10625357659690B0D7047" lsidName="crinitus" pageId="9" pageNumber="76" rank="species" species="crinitus">crinitus</taxonomicName>
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.
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</paragraph>
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<caption id="1A83F8D8BEDE931F000D24AEFF9A0623" pageId="9" pageNumber="76">
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<paragraph id="439A2A316650DED5858A85D555326907" pageId="9" pageNumber="76">
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Figure 15. Typical habitat of both
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<taxonomicName id="C753DF744BFA422D397691C60B88BB60" class="Insecta" family="Asilidae" genus="Gibbasilus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gibbasilus condylus" order="Diptera" pageId="9" pageNumber="76" phylum="Arthropoda" rank="species" species="condylus">Gibbasilus condylus</taxonomicName>
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sp. n. and
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<taxonomicName id="9CFCAE3741334BE9234C3945D80E67EE" class="Insecta" family="Asilidae" genus="Gibbasilus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gibbasilus crinitus" order="Diptera" pageId="9" pageNumber="76" phylum="Arthropoda" rank="species" species="crinitus">Gibbasilus crinitus</taxonomicName>
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sp. n. - Kagga Kamma Nature Reserve, where both species may be found sympatrically.
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</paragraph>
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</caption>
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</subSubSection>
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</treatment>
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</document> |