<mods:titleid="132790D3D85C91E52864AA0A80CCDB35">Systematic revision of the South American “ Nuncia ” (Opiliones, Laniatores, Triaenonychidae)</mods:title>
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<mods:affiliationid="BFD3B1DDEF01CC50822516D010A1A2CF">Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA & San Diego Natural History Museum, Department of Entomology, San Diego, CA 92101, USA</mods:affiliation>
<mods:affiliationid="3138427CEC53BA268ADDADCF3F792D5D">Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA</mods:affiliation>
<mods:affiliationid="D98E71D1AB7A2CACF45D7B921C9B074E">División Aracnología, Museo Argentino de Ciencias Naturales – CONICET, Av. Ángel Gallardo 470, C 1405 DJR Buenos Aires, Argentina</mods:affiliation>
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<figureCitationid="BD867E4B8BD909F4B8F18E29F9D8A252"captionStart="Figure 75"captionStartId="F75"captionText="Figure 75. Nerudiella cachai sp. nov. male, SEM images of habitus A dorsal view B lateral view C, D ventral view. Scale bars: 500 µm (A, B, C); 200 µm (D)."figureDoi="10.3897/zookeys.1207.120068.figure75"httpUri="https://binary.pensoft.net/fig/1090688">75</figureCitation>
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<figureCitationid="298130D67A656DFE029346237CD2C9CD"captionStart="Figure 77"captionStartId="F77"captionText="Figure 77. Nerudiella cachai sp. nov. legs I A II B III C IV D. Scale bars: 200 µm."figureDoi="10.3897/zookeys.1207.120068.figure77"httpUri="https://binary.pensoft.net/fig/1090690">77</figureCitation>
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<figureCitationid="85ABECF8C8C19A47C9A3FC37705493FB"captionStart="Figure 78"captionStartId="F78"captionText="Figure 78. Nerudiella cachai sp. nov. penis: ventral A, B apical C lateral D, E dorsal F, G. Scale bars: 200 µm (A, D, F); 50 µm (B, C, E, G)."figureDoi="10.3897/zookeys.1207.120068.figure78"httpUri="https://binary.pensoft.net/fig/1090691">78</figureCitation>
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<figureCitationid="A10492C2D52C597F80715745B72F750A"captionStart="Figure 79"captionStartId="F79"captionText="Figure 79. Nerudiella cachai sp. nov. penis: ventral A apical B lateral C dorsal D. Colors: ventral plate (yellow), capsula externa (blue), capsula interna (red). Scale bars: 50 µm."figureDoi="10.3897/zookeys.1207.120068.figure79"httpUri="https://binary.pensoft.net/fig/1090692">79</figureCitation>
<collectingDateid="CC5FE9D790A8610242DBDEDB7768957E"value="1976-04-21">21. IV. 1976</collectingDate>
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that is roughly translated to “ you know what I mean? ” “ am I right? ”, or “ get it? ”. It is derived from the English term “ to catch, ” which refers to catching but is also used to mean “ understanding or understanding something. ” Noun in apposition.
<paragraphid="1E67F359DBD00AE41B3F94C78774281C">This species can be easily distinguished from other species of the genus by its male genitalia, which exhibits a highly reduced ventral plate, with a stylus that is formed by a thin and slender tube.</paragraph>
<paragraphid="0348A8D3C96CCE8787E7155701FD21FA">Measurements: Total length 2.26, carapace length 0.92, dorsal scutum length 1.84, carapace max. width 1.23, mesotergum max. width 1.70. Appendage measurements: Pedipalps. Trochanter length 0.23, femora length 0.91, patella length 0.44, tibia length 0.68, tarsus length 0.59. Leg I: trochanter (tr) 0.22, femora (fe) 1.10, patella (pa) 0.51, tibia (ti) 0.79, metatarsus (mt) 0.92, tarsus (ta) 0.92. II: tr 0.27, fe 1.33, pa 0.57, ti 1.00, mt 1.22, ta 1.45. III: tr 0.21, fe 0.91, pa 0.31, ti 0.73, mt 0.75, ta 0.74. IV: tr 0.32, fe 1.29, pa 0.59, ti 1.04, mt 1.30, ta 0.86.</paragraph>
<paragraphid="73F615F61C25744335C5B5C1A1E35008">
Dorsum (Fig.
<figureCitationid="DCDF402F48EE84693F7C98D16664C47F"captionStart="Figure 74"captionStartId="F74"captionText="Figure 74. Nerudiella cachai sp. nov. habitus, male A dorsal view C lateral view E ventral view. Female B dorsal view D lateral view F ventral view. Scale bars: 500 µm. Species of Clade C, see Fig. 3"figureDoi="10.3897/zookeys.1207.120068.figure74"httpUri="https://binary.pensoft.net/fig/1090687">74</figureCitation>
,
<figureCitationid="0A840F837D7737F2606B8DD1E653A557"captionStart="Figure 75"captionStartId="F75"captionText="Figure 75. Nerudiella cachai sp. nov. male, SEM images of habitus A dorsal view B lateral view C, D ventral view. Scale bars: 500 µm (A, B, C); 200 µm (D)."figureDoi="10.3897/zookeys.1207.120068.figure75"httpUri="https://binary.pensoft.net/fig/1090688">75</figureCitation>
). Eta (η) dorsal scutum in the shape of an hourglass. Ocularium low. Dorsal scutum microgranulate, with no clear delimitation of distinct areas. Areas III and IV with irregular rows of small rounded setiferous tubercles; posterior margin with a similar irregular row of small rounded setiferous tubercles. All free tergites covered in small setae and with a row of small rounded setiferous tubercles.
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ventral view. Scale bars: 500 µm. Species of Clade C, see Fig.
<figureCitationid="257B1B189533B9AFD09CE48BB5B7524E"captionStart="Figure 3"captionStartId="F3"captionText="Figure 3. Phylogenetics relationships of Triaenonychidae, with clade names as discussed in the main text. Phylogeny is derived from the IQ-TREE analysis. Nodes without circles have < 95 % bootstrap support to AH-aLR and UFBoot."figureDoi="10.3897/zookeys.1207.120068.figure3"httpUri="https://binary.pensoft.net/fig/1090609">3</figureCitation>
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<figureCitationid="E92E0439FA25FD0E1C397F0B19827A34"captionStart="Figure 76"captionStartId="F76"captionText="Figure 76. Nerudiella cachai sp. nov. chelicerae: mesal A ectal B pedipalps: mesal C ectal D. Scale bars: 200 µm."figureDoi="10.3897/zookeys.1207.120068.figure76"httpUri="https://binary.pensoft.net/fig/1090689">76 A, B</figureCitation>
). Segment I with a small tubercle on its dorso-distal surface. Segment II with a small frontal tubercle and scattered setae.
<taxonomicNameid="4C8910F1E6B4F3DDB59FB3DF65BEA663"authorityName="Porto & Derkarabetian & Giribet & Pérez-González"authorityYear="2024"class="Arachnida"family="Triaenonychidae"genus="Nerudiella"kingdom="Animalia"order="Opiliones"phylum="Arthropoda"rank="species"species="cachai"status="sp. nov.">
<figureCitationid="A6BBB7B72166341311B99B291D2C7A24"captionStart="Figure 76"captionStartId="F76"captionText="Figure 76. Nerudiella cachai sp. nov. chelicerae: mesal A ectal B pedipalps: mesal C ectal D. Scale bars: 200 µm."figureDoi="10.3897/zookeys.1207.120068.figure76"httpUri="https://binary.pensoft.net/fig/1090689">76 C, D</figureCitation>
). Trochanter characterized by the presence of two small dorsal tubercles and one ventral tubercle. In dorsal view, femora with three spines with subdistal setae; in ventral view, with five tubercles with subdistal setae, with four mesal setiferous tubercles and one ectal setiferous tubercle positioned beneath. Patella with both mesal and ectal setiferous tubercles. Tibia with three ectal and two mesal spines with subdistal setae. Tarsus with three mesal and ectal spines, accompanied by scattered setae.
</paragraph>
<paragraphid="EEB47B1E74D3BDC3F17294A9F3E35578">
Legs (Fig.
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). Segments I and II with two rows of setiferous tubercles; segments III and IV microgranulate but without setiferous tubercles. With three bridges connecting legs II and III, six bridges between III and IV, and four bridges between leg IV and the opisthosoma. Distal bridge longer than the others. The bridges do not obstruct the spiracles. The smooth area occupies ~ ¼ of leg II, ¾ of leg III, and <1 / 3 of leg IV. Sternum arrow-shaped, with a triangular-shaped posterior margin. Legs I – IV covered with setae, the area of the tarsus and calcaneus are densely setose. Femora I – IV with a ventral row of setiferous granules. Calcaneus smaller than astragalus, ≥ 3 × smaller (legs I, III) of the same size (II) and 4 × smaller (leg IV). Tarsal count: 3–6 – 4 – 4.
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<figureCitationid="D273813858ED5D4EBD0C997A6DB926C7"captionStart="Figure 78"captionStartId="F78"captionText="Figure 78. Nerudiella cachai sp. nov. penis: ventral A, B apical C lateral D, E dorsal F, G. Scale bars: 200 µm (A, D, F); 50 µm (B, C, E, G)."figureDoi="10.3897/zookeys.1207.120068.figure78"httpUri="https://binary.pensoft.net/fig/1090691">78</figureCitation>
,
<figureCitationid="46D6D51DE6B4B1A0FF0FB69E363FDA0D"captionStart="Figure 79"captionStartId="F79"captionText="Figure 79. Nerudiella cachai sp. nov. penis: ventral A apical B lateral C dorsal D. Colors: ventral plate (yellow), capsula externa (blue), capsula interna (red). Scale bars: 50 µm."figureDoi="10.3897/zookeys.1207.120068.figure79"httpUri="https://binary.pensoft.net/fig/1090692">79</figureCitation>
). Pars distalis with a small ventral plate divided into two distinct small lamellae by a central cleft. Each lamella adorned with three pointed macrosetae on its ventral surface, with a single macroseta on its dorsal surface. Additionally, there is a capsula externa, characterized by its square shape, which covers the dorsal and lateral surfaces. Attached to the pars basalis is a dorsolateral plate. The capsula interna, longer in length compared to the capsula externa, partially overlays the ventral plate. Apex of the capsula interna with a tubular stylus.
<taxonomicNameid="BD6EDEC976DA89F8641A69BEE28E399C"authorityName="Porto & Derkarabetian & Giribet & Pérez-González"authorityYear="2024"class="Arachnida"family="Triaenonychidae"genus="Nerudiella"kingdom="Animalia"order="Opiliones"phylum="Arthropoda"rank="species"species="cachai"status="sp. nov.">
<taxonomicNameid="4AEBF49FBCF25F21933D5B774E6AAE0E"authorityName="Porto & Derkarabetian & Giribet & Pérez-González"authorityYear="2024"class="Arachnida"family="Triaenonychidae"genus="Nerudiella"kingdom="Animalia"order="Opiliones"phylum="Arthropoda"rank="species"species="cachai"status="sp. nov.">