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<document id="5248F9D93F5C146625422A275F24D024" ID-DOI="10.5281/zenodo.211467" ID-GBIF-Dataset="5e03585d-9854-4b46-ac58-c2a5494114d3" ID-ISSN="1175-5326" ID-Zenodo-Dep="211467" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460500172947" checkinUser="plazi" docAuthor="Tuzovskij, Petr V." docDate="2012" docId="64766016FFB1FFFA258DFC30D55FFADF" docLanguage="en" docName="zt03393p052.pdf" docOrigin="Zootaxa 3393" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Atractides graecus K. Viets 1950" docType="treatment" docVersion="8" lastPageNumber="51" masterDocId="984F186EFFB9FFF0251AFFE4D45BFFEF" masterDocTitle="Larval morphology of Atractides ildensis Tuzovskij, 2005, A. moniezi (Motaş, 1927), and A. graecus Viets, 1950 (Acari: Hydrachnidia: Hygrobatidae)" masterLastPageNumber="52" masterPageNumber="41" pageNumber="49" updateTime="1698311568771" updateUser="plazi">
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<mods:title id="0154CE92D5128D71F3C99FFE299AB3C0">Larval morphology of Atractides ildensis Tuzovskij, 2005, A. moniezi (Motaş, 1927), and A. graecus Viets, 1950 (Acari: Hydrachnidia: Hygrobatidae)</mods:title>
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<mods:namePart id="C155869DC5CF71B2926BCE1A706E7CDC">Tuzovskij, Petr V.</mods:namePart>
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<mods:date id="837EB6152B909BBF96E5C102C1FC9230">2012</mods:date>
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<treatment id="64766016FFB1FFFA258DFC30D55FFADF" ID-DOI="http://doi.org/10.5281/zenodo.6169170" ID-GBIF-Taxon="119521116" ID-Zenodo-Dep="6169170" LSID="urn:lsid:plazi:treatment:64766016FFB1FFFA258DFC30D55FFADF" httpUri="http://treatment.plazi.org/id/64766016FFB1FFFA258DFC30D55FFADF" lastPageId="10" lastPageNumber="51" pageId="8" pageNumber="49">
<subSubSection id="A4C5828BFFB1FFF8258DFC30D041F829" pageId="8" pageNumber="49" type="nomenclature">
<paragraph id="EC60D100FFB1FFF8258DFC30D670FC02" blockId="8.[151,555,979,1038]" box="[151,555,979,1006]" pageId="8" pageNumber="49">
<heading id="B728666CFFB1FFF8258DFC30D670FC02" bold="true" box="[151,555,979,1006]" fontSize="11" level="1" pageId="8" pageNumber="49" reason="1">
<taxonomicName id="2BDFAA83FFB1FFF8258DFC30D670FC02" authority="K. Viets, 1950" authorityName="K. Viets" authorityYear="1950" box="[151,555,979,1006]" class="Arachnida" family="Hygrobatidae" genus="Atractides" kingdom="Animalia" order="Trombidiformes" pageId="8" pageNumber="49" phylum="Arthropoda" rank="species" species="graecus">
<emphasis id="DEAB0D12FFB1FFF8258DFC30D670FC02" bold="true" box="[151,555,979,1006]" pageId="8" pageNumber="49">
<emphasis id="DEAB0D12FFB1FFF8258DFC30D52DFC01" bold="true" box="[151,374,980,1006]" italics="true" pageId="8" pageNumber="49">Atractides graecus</emphasis>
K. Viets, 1950
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="EC60D100FFB1FFF8258DFC12D57CFBE1" blockId="8.[151,555,979,1038]" box="[151,295,1014,1038]" pageId="8" pageNumber="49">(Figs 2534)</paragraph>
<paragraph id="EC60D100FFB1FFF8258DF871D041F829" blockId="8.[151,1435,1939,1992]" pageId="8" pageNumber="49">
<emphasis id="DEAB0D12FFB1FFF8258DF871D513F846" bold="true" box="[151,328,1940,1961]" pageId="8" pageNumber="49">FIGURES 2530.</emphasis>
<taxonomicName id="2BDFAA83FFB1FFF82455F870D6D6F846" authority="Viets, 1950" authorityName="Viets" authorityYear="1950" box="[335,653,1939,1962]" class="Arachnida" family="Hygrobatidae" genus="Atractides" kingdom="Animalia" order="Trombidiformes" pageId="8" pageNumber="49" phylum="Arthropoda" rank="species" species="graecus">
<emphasis id="DEAB0D12FFB1FFF82455F870D654F845" box="[335,527,1940,1962]" italics="true" pageId="8" pageNumber="49">Atractides graecus</emphasis>
Viets, 1950
</taxonomicName>
, larva: 25, dorsal plate; 26, coxae IIII, ventral view; 27, seta
<emphasis id="DEAB0D12FFB1FFF82014F870D175F846" box="[1294,1326,1940,1961]" italics="true" pageId="8" pageNumber="49">Ci;</emphasis>
28, excretory pore plate; 29, chelicerae; 30, pedipalp. Scale bars: 2527 = 50 μm, 2830 = 20 μm.
</paragraph>
</subSubSection>
<subSubSection id="A4C5828BFFB0FFF9258DFF73D59CFF3B" pageId="9" pageNumber="50" type="materials_examined">
<paragraph id="EC60D100FFB0FFF9258DFF73D59CFF3B" blockId="9.[151,1436,151,500]" pageId="9" pageNumber="50">
<emphasis id="DEAB0D12FFB0FFF9258DFF73D5D9FF5F" bold="true" box="[151,386,151,176]" pageId="9" pageNumber="50">Material examined.</emphasis>
Larva (n = 1),
<collectingCountry id="94C89190FFB0FFF9272FFF73D6C9FF40" box="[565,658,151,175]" name="Ukraine" pageId="9" pageNumber="50">Ukraine</collectingCountry>
, Crimea, Yalta, Bystraya stream; single larva was collected together with female,
<date id="9861F7C0FFB0FFF92430FF58D598FF3B" box="[298,451,188,213]" pageId="9" pageNumber="50" value="1974-05-31">31 May 1974</date>
.
</paragraph>
</subSubSection>
<subSubSection id="A4C5828BFFB0FFF925D3FF3BD491FED0" pageId="9" pageNumber="50" type="diagnosis">
<paragraph id="EC60D100FFB0FFF925D3FF3BD491FED0" blockId="9.[151,1436,151,500]" pageId="9" pageNumber="50">
<emphasis id="DEAB0D12FFB0FFF925D3FF3BD518FF17" bold="true" box="[201,323,223,248]" pageId="9" pageNumber="50">Diagnosis.</emphasis>
Dorsal plate elongated (L/W ratio 2.07), with reticulated pattern consisting of elongated cells only. Coxae III indented posteromedially,
<emphasis id="DEAB0D12FFB0FFF92720FEE1D634FEF3" box="[570,623,261,284]" italics="true" pageId="9" pageNumber="50">tmas</emphasis>
not developed. Setae
<emphasis id="DEAB0D12FFB0FFF9266AFEE1D7D1FEF3" box="[880,906,261,284]" italics="true" pageId="9" pageNumber="50">Ci</emphasis>
located on small, short projections (L/D ratio 1.0).
</paragraph>
</subSubSection>
<subSubSection id="A4C5828BFFB0FFFA25D3FEAFD555FB93" lastPageId="10" lastPageNumber="51" pageId="9" pageNumber="50" type="description">
<paragraph id="EC60D100FFB0FFF925D3FEAFD065FE1B" blockId="9.[151,1436,151,500]" pageId="9" pageNumber="50">
<emphasis id="DEAB0D12FFB0FFF925D3FEAFD500FE8B" bold="true" box="[201,347,331,356]" pageId="9" pageNumber="50">Description.</emphasis>
Idiosoma flat, dorsal plate in unengorged larvae covering almost the whole dorsum (Fig. 25), with almost straight lateral margins, its anterior margin straight, posterior margin rounded, with elongate scale-like patterns. Simple setae on dorsal plate long and thick, anterior setae (
<emphasis id="DEAB0D12FFB0FFF926B4FE70D782FE43" box="[942,985,404,428]" italics="true" pageId="9" pageNumber="50">Fch</emphasis>
) shorter than posterior setae (
<emphasis id="DEAB0D12FFB0FFF9202FFE71D108FE43" box="[1333,1363,404,428]" italics="true" pageId="9" pageNumber="50">Vi)</emphasis>
. Both pairs of trichobothria relatively short, thin and equal in length. Nine pairs of setae (
<emphasis id="DEAB0D12FFB0FFF9215AFE5CD4E9FE1B" italics="true" pageId="9" pageNumber="50">Oe, Hi, He, Sci, Sce, Li, Le, Si, Se</emphasis>
) situated on soft wrinkled membrane, all thin and approximately equal in length.
</paragraph>
<paragraph id="EC60D100FFB0FFF9258DF848D53AF80D" blockId="9.[151,1436,1962,2020]" pageId="9" pageNumber="50">
<emphasis id="DEAB0D12FFB0FFF9258DF848D513F82F" bold="true" box="[151,328,1963,1984]" pageId="9" pageNumber="50">FIGURES 3034.</emphasis>
<taxonomicName id="2BDFAA83FFB0FFF92454F84FD6D1F82F" authority="Viets, 1950" authorityName="Viets" authorityYear="1950" box="[334,650,1962,1985]" class="Arachnida" family="Hygrobatidae" genus="Atractides" kingdom="Animalia" order="Trombidiformes" pageId="9" pageNumber="50" phylum="Arthropoda" rank="species" species="graecus">
<emphasis id="DEAB0D12FFB0FFF92454F84FD656F82E" box="[334,525,1963,1985]" italics="true" pageId="9" pageNumber="50">Atractides graecus</emphasis>
Viets, 1950
</taxonomicName>
, larva: 31, leg I; 32, leg II; 33, leg III; 34, claws of leg I. Scale bars: 3133 = 50 μm; 34 = 20 μm.
</paragraph>
<paragraph id="EC60D100FFB3FFFA25D3FF73D15AFF18" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">
Coxae III indented posteromedially (Fig. 26). Setae C1, C2 and C3 approximately equal in length and shorter than C4;
<emphasis id="DEAB0D12FFB3FFFA25E4FF59D568FF3B" box="[254,307,189,212]" italics="true" pageId="10" pageNumber="51">tmas</emphasis>
in posteromedial corner of coxae III not developed. All leg coxae with reticulated pattern consisting of elongated cells. Seta
<emphasis id="DEAB0D12FFB3FFFA24BBFF04D5E0FF18" box="[417,443,224,247]" italics="true" pageId="10" pageNumber="51">Ci</emphasis>
(Fig. 27) moderately long and located on short projections (L/D ratio 1.0).
</paragraph>
<paragraph id="EC60D100FFB3FFFA25D3FEE1D5FCFE20" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">
Excretory pore plate (Fig. 28) large, slightly less than twice as wide as long, rounded posteriorly, concave laterally and anteriorly, and with small protrusion anteromedially; bearing four pairs of setae (
<emphasis id="DEAB0D12FFB3FFFA21ACFECCD116FEAF" box="[1206,1357,296,320]" italics="true" pageId="10" pageNumber="51">Ai, Ae, Pi, Pe</emphasis>
). Both pairs of anal setae (
<emphasis id="DEAB0D12FFB3FFFA246EFEA8D5E2FE8B" box="[372,441,332,356]" italics="true" pageId="10" pageNumber="51">Ai, Ae</emphasis>
) usually reduced and represented only by their alveoli, setae
<emphasis id="DEAB0D12FFB3FFFA216BFEA8D0D1FE8B" box="[1137,1162,332,356]" italics="true" pageId="10" pageNumber="51">Ai</emphasis>
located well away from anterior margin,
<emphasis id="DEAB0D12FFB3FFFA2447FE94D521FE67" box="[349,378,368,392]" italics="true" pageId="10" pageNumber="51">Ae</emphasis>
slightly posterior to middle of excretory pore plate, flanking of excretory pore, distance between setae
<emphasis id="DEAB0D12FFB3FFFA2424FE70D5D9FE43" box="[318,386,404,428]" italics="true" pageId="10" pageNumber="51">Ae-Ae</emphasis>
almost twice as long as distance between setae
<emphasis id="DEAB0D12FFB3FFFA26B5FE70D7B1FE43" box="[943,1002,404,428]" italics="true" pageId="10" pageNumber="51">Ai-Ai</emphasis>
; setae
<emphasis id="DEAB0D12FFB3FFFA2127FE71D00DFE43" box="[1085,1110,405,428]" italics="true" pageId="10" pageNumber="51">Pi</emphasis>
and
<emphasis id="DEAB0D12FFB3FFFA218BFE71D0F5FE43" box="[1169,1198,405,428]" italics="true" pageId="10" pageNumber="51">Pe</emphasis>
equal in length near anterior margin of plate.
</paragraph>
<paragraph id="EC60D100FFB3FFFA25D3FE38D743FDF8" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">Basal segments of chelicerae fused to each other medially, their posterior edge straight (Fig. 29). Cheliceral stylet small, crescentshaped with single subapical tooth.</paragraph>
<paragraph id="EC60D100FFB3FFFA25D3FDC0D11CFD6B" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">Pedipalps comparatively long (Fig. 30): P1 very short, without setae; P2 large with one short, thin laterodistal seta; P3 with very long, thick lateroproximal seta and short, fine laterodistal one; P4 with three thin setae and massive dorsodistal claw; P5 small, with one rather long solenidion and short, thin simple setae.</paragraph>
<paragraph id="EC60D100FFB3FFFA25D3FD6BD15BFC90" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">Shape and arrangement of setae on legs segments as shown in Figs 3133. Total number of leg setae, excluding eupathidia, as follows (specialized setae indicated in parentheses): I Leg15: 1, 7, 5 (s), 11 (2s), 14 (s, ac); IILeg15: 1, 7, 5 (s), 11 (2s), 14 (s, ac); IIILeg15: 1, 6, 5 (s), 9 (s), 11 (ac). Seta on ILeg1, IILeg1 and III Leg1approximately equal in length. Solenidion on ILeg3 and both solenidia on ILeg4 subequal. Proximal solenidion on IILeg4 longer than distal one. Solenidion on IIILeg3 shorter than solenidion on IIILeg4. Solenidion on ILeg5 occupying dorsodistal position, solenidion on IILeg5 situated proximally. Acanthoid seta located distally on tarsus of all legs. Claws of all legs (Fig. 34) with fine lateral teeth.</paragraph>
<paragraph id="EC60D100FFB3FFFA25D3FC69D555FB93" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">
Measurements (n=1). L of dorsal plate 185, W 90; L of setae
<emphasis id="DEAB0D12FFB3FFFA266FFC68D7FAFC4B" box="[885,929,908,932]" italics="true" pageId="10" pageNumber="51">Fch</emphasis>
30, L of setae
<emphasis id="DEAB0D12FFB3FFFA215FFC69D03FFC4B" box="[1093,1124,909,932]" italics="true" pageId="10" pageNumber="51">Fp</emphasis>
and
<emphasis id="DEAB0D12FFB3FFFA2180FC69D0EDFC4B" box="[1178,1206,909,932]" italics="true" pageId="10" pageNumber="51">Oi</emphasis>
2529, L of setae
<date id="9861F7C0FFB3FFFA209FFC69D4EDFC28" pageId="10" pageNumber="51" value="1945-06">
<emphasis id="DEAB0D12FFB3FFFA209FFC69D1C1FC4B" box="[1413,1434,909,932]" italics="true" pageId="10" pageNumber="51">Vi</emphasis>
45
</date>
, L of setae
<emphasis id="DEAB0D12FFB3FFFA2422FC54D6BBFC28" box="[312,736,944,968]" italics="true" pageId="10" pageNumber="51">Oe, Hi, He, Sci, Sce, Li, Le, Si and Se</emphasis>
1926, L of setae
<emphasis id="DEAB0D12FFB3FFFA26ABFC55D791FC27" box="[945,970,945,968]" italics="true" pageId="10" pageNumber="51">Pi</emphasis>
16, L of setae
<emphasis id="DEAB0D12FFB3FFFA2169FC55D0CBFC27" box="[1139,1168,945,968]" italics="true" pageId="10" pageNumber="51">Pe</emphasis>
19, L of setae C1 22, L of setae C2 22, L of setae C3 25, L of setae C4 38; L of medial edges of coxae IIII 157162; D of urstigma 1516; L of excretory pore plate 23, W 42; L of basal segment of chelicera 67, L of cheliceral stylet 22; L of pedipalpal segments (P15): 6, 34, 19, 6, 4; L of base of setae
<emphasis id="DEAB0D12FFB3FFFA27F5FBF9D752FBDB" box="[751,777,1053,1076]" italics="true" pageId="10" pageNumber="51">Ci</emphasis>
6, distance between setae
<emphasis id="DEAB0D12FFB3FFFA212CFBF8D02DFBDB" box="[1078,1142,1052,1076]" italics="true" pageId="10" pageNumber="51">AiAi</emphasis>
8, distance between setae
<emphasis id="DEAB0D12FFB3FFFA258DFBA4D4BAFBB7" box="[151,225,1088,1112]" italics="true" pageId="10" pageNumber="51">AeAe</emphasis>
16; L of legs segments: ILeg15: 29, 42, 35, 36, 46; IILeg15: 32, 38, 38, 38, 50; IIILeg15: 38, 48, 42, 48, 58.
</paragraph>
</subSubSection>
<subSubSection id="A4C5828BFFB3FFFA25D3FB6CD55FFADF" pageId="10" pageNumber="51" type="discussion">
<paragraph id="EC60D100FFB3FFFA25D3FB6CD55FFADF" blockId="10.[151,1437,151,1328]" pageId="10" pageNumber="51">
<emphasis id="DEAB0D12FFB3FFFA25D3FB6CD566FB4F" bold="true" box="[201,317,1160,1184]" pageId="10" pageNumber="51">Remarks.</emphasis>
The combination of the following characters separate larvae of
<taxonomicName id="2BDFAA83FFB3FFFA2116FB6CD0DFFB4F" box="[1036,1156,1160,1184]" class="Arachnida" family="Hygrobatidae" genus="Atractides" kingdom="Animalia" order="Trombidiformes" pageId="10" pageNumber="51" phylum="Arthropoda" rank="species" species="graecus">
<emphasis id="DEAB0D12FFB3FFFA2116FB6CD0DFFB4F" box="[1036,1156,1160,1184]" italics="true" pageId="10" pageNumber="51">A. graecus</emphasis>
</taxonomicName>
from all other species of the genus
<taxonomicName id="2BDFAA83FFB3FFFA2413FB48D527FB2B" box="[265,380,1196,1220]" class="Arachnida" family="Hygrobatidae" genus="Atractides" kingdom="Animalia" order="Trombidiformes" pageId="10" pageNumber="51" phylum="Arthropoda" rank="genus">
<emphasis id="DEAB0D12FFB3FFFA2413FB48D527FB2B" box="[265,380,1196,1220]" italics="true" pageId="10" pageNumber="51">Atractides</emphasis>
</taxonomicName>
: (1) coxae III indented posteromedially (Fig. 26), (2) all nine pairs of setae are situated on the soft interscutal membrane approximately equal in length, and (3) setae
<emphasis id="DEAB0D12FFB3FFFA26AEFB34D795FB08" box="[948,974,1232,1255]" italics="true" pageId="10" pageNumber="51">Ci</emphasis>
located on short projections. This species is found in
<collectingCountry id="94C89190FFB3FFFA24B1FB10D65EFAE3" box="[427,517,1268,1292]" name="Ukraine" pageId="10" pageNumber="51">Ukraine</collectingCountry>
for the first time. In the Bystraya stream only one species of
<taxonomicName id="2BDFAA83FFB3FFFA21A5FB10D169FAE3" box="[1215,1330,1268,1292]" class="Arachnida" family="Hygrobatidae" genus="Atractides" kingdom="Animalia" order="Trombidiformes" pageId="10" pageNumber="51" phylum="Arthropoda" rank="genus">
<emphasis id="DEAB0D12FFB3FFFA21A5FB10D169FAE3" box="[1215,1330,1268,1292]" italics="true" pageId="10" pageNumber="51">Atractides</emphasis>
</taxonomicName>
has been collected.
</paragraph>
</subSubSection>
</treatment>
</document>