identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03AD87D6FFA4FFF8FDBA02CA0147BF86.text	03AD87D6FFA4FFF8FDBA02CA0147BF86.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nativus yasuni Rheims & Casas 2025	<div><p>Nativus yasuni sp. nov.</p><p>Figs 1–16</p><p>Type material. Holotype: ECUADOR: Orellana: ♂, Orellana, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-76.144165&amp;materialsCitation.latitude=-0.6319445" title="Search Plazi for locations around (long -76.144165/lat -0.6319445)">Tiputini Biodiversity Station</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-76.144165&amp;materialsCitation.latitude=-0.6319445" title="Search Plazi for locations around (long -76.144165/lat -0.6319445)">near Yasuní National Park</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-76.144165&amp;materialsCitation.latitude=-0.6319445" title="Search Plazi for locations around (long -76.144165/lat -0.6319445)">Erwin Transect T/1 Sta. 1</a>, 200–250 mts., lot 2024 (00º37'55"S, 76º08'39"W), 8 February 1999, T.L. Erwin et al. leg. (USNM).</p><p>Paratypes: ECUADOR: Napo: 1 ♂, Napo, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-77.61672&amp;materialsCitation.latitude=-1.0659722" title="Search Plazi for locations around (long -77.61672/lat -1.0659722)">Jatun Sacha Biological Station</a> (01º03'57.5"S, 77º37'0.2"W). 1–5 December 2009, Oonopidae PBI Team leg. (IBSP 306712) . Orellana: 1 ♀, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-76.452995&amp;materialsCitation.latitude=-0.6569444" title="Search Plazi for locations around (long -76.452995/lat -0.6569444)">Reserva Étnica Waorani</a>, transect ent, 1km S Onkone Gare Camp, 216.3 mts, lot 928 (00º39'25"S, 76º27'10.8"W), 9 October 1994, T.L. Erwin et al. leg. (USNM) ; 1 ♀, same collection data as for previous specimen, lot 1953 (USNM) . PERU: Loreto: 1 ♂, Maynas, Rio Shino, 212 mts. (01º16'58.58"S, 75º16'25'21"W), 28 December 2008, R. Yawarcani leg. (MUSM) ; 1 ♀, same collection data as for previous specimen (MUSM); [Maynas], <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-74.78584&amp;materialsCitation.latitude=-1.7026223" title="Search Plazi for locations around (long -74.78584/lat -1.7026223)">Rio Napo</a>, 206 mts. (01º42'9.44"S, 74º47'9.03"W), 3 November 2008, R. Yawarcani leg. (MUSM) .</p><p>Additional material examined. PERU: Loreto: 1 ♂, 2 ♀, Maynas, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-75.254166&amp;materialsCitation.latitude=-1.2834527" title="Search Plazi for locations around (long -75.254166/lat -1.2834527)">Rio Shino</a>, 200 mts. (01º17'0.43"S, 75º15'14.99"W, 28 December 2012, R. Yawarcani leg. (MUSM) ; 1 ♀, same collection locality as for previous specimen, 95 mts. (01º12'33.8"S, 75º22'32"W), 3 January 2009, R. Yawarcani leg. (MUSM); 2 ♀, [Maynas], <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-74.78584&amp;materialsCitation.latitude=-1.7026223" title="Search Plazi for locations around (long -74.78584/lat -1.7026223)">Rio Napo</a>, 206 mts. (01º42'9.44"S, 74º47'9.03"W), 3 November 2008, R. Yawarcani leg. (MUSM) ; 1 ♀, [Maynas], <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-75.37556&amp;materialsCitation.latitude=-1.209389" title="Search Plazi for locations around (long -75.37556/lat -1.209389)">Rio Nashano</a>, 195 mts. (01º12'33.8"S, 75º22'32"W), 3 January 2009, R. Yawarcani leg. (MUSM) .</p><p>Etymology. The specific name refers to the Yasuní National Park in Ecuador, one of the localities in which the species has been found, noun in apposition.</p><p>Diagnosis. Males of N. yasuni sp. nov. resemble those of N. carare Casas &amp; Rheims, 2023 (figs 16–18), N. mariua Casas &amp; Rheims, 2023 (figs 59–61) and N. tawu Casas &amp; Rheims, 2023 (figs 106–108) by the palps with embolus roughly straight and tegulum lacking a retrodistal tegular protrusion (RdP). They are distinguished from these species by the dorsal branch of RTA (dRTA) being hook-shaped and subdistal (Figs 7, 12) (vs. more distally located in the other species, spade-shaped in N. carare, and bifid in N. mariua and N. tawu) and by the presence of a laminar and curved tegular projection close to the hyaline projection at the base of the embolus (Figs 5–7, 10–12) (vs. absent in N. carare, and small and triangular in N. mariua and N. tawu). Females differ from all congeners by the epigyne with lateral lobes touching each other medially (Figs 8, 13) (vs. fused medially or slightly posteriorly in all other species) and vulva with first winding laterad and then curved and encapsulated in a rounded structure (Figs 9, 14–15) (vs. first winding antero-laterad and then strongly convoluted, encapsulated within a sclerotized, elongated structure in the other species).</p><p>Description. Male (Holotype): Prosoma brown, with slightly darker margins, short longitudinal marks extending posteriorly from behind eyes and radiating thoracic striae slightly darker than carapace; fovea very slightly conspicuous, dark brown; eye borders black; legs, chelicerae and pedipalps brown, lighter than prosoma; labium yellowish cream-colored with orange brown base; sternum yellowish cream-colored with slightly darker margins; opisthosoma cream-colored (Figs 1–2). Total length 6.1. Prosoma: 2.8 long, 2.8 wide. Opisthosoma: 2.9 long, 1.9 wide. Eyes: diameters: 0.16, 0.22, 0.19, 0.26; interdistances: 0.09, 0.03, 0.21, 0.23, 0.20, 0.19. Legs (2143): I: 19.1 (4.6, 2.1, 5.1, 4.9, 2.4); II 21.8 (5.4, 1.4, 6.1, 6.2, 2.7); III: 13.6 (3.8, 1.0, 3.5, 3.8, 1.5): IV: 17.2 (4.6, 1.0, 4.1, 5.3, 2.2). Palp: ventral tibial apophysis (VTA) absent; ventral branch of RTA (vRTA) slightly over two times longer than wide in retrolateral view; projection close to the embolus base (bp) laminar, two times longer than wide, apically rounded; dorsal tegular apophysis (DTA) sickleshaped; embolus short and straight, with wide base, with tip reaching slightly more than half conductor length (Figs 5–7, 10–12).</p><p>Female (Paratype, lot 928): Coloration pattern as in male, but darker overall (Figs 3–4). Total length 5.8. Prosoma: 2.7 long, 2.7 wide. Opisthosoma: 3.0 long, 1.9 wide. Eyes: diameters: 0.15, 0.25, 0.17, 0.26; interdistances: 0.08, 0.03, 0.20, 0.25, 0.20, 0.20. Legs (2413): I: 11.5 (3.2, 1.2, 3.1, 2.7, 1.3); II: 13.1 (4.0, 1.2, 3.5, 3.1, 1.3); III: 9.9 (2.9, 1.0, 2.4, 2.5, 1.0); IV: 11.6 (3.2, 0.9, 2.8, 3.3, 1.4). Epigyne: epigynal field slightly longer than wide; with lateral lobe (LL) with curved lateral margins, touching each other medially throughout a third of their length; pair of elongated copulatory depressions bearing copulatory openings posteriorly (Figs 8, 13). Vulva: internal duct system with first winding strongly sclerotized, with rugged margins, curving into rounded structure; fertilization ducts antero-laterad (Figs 9, 14–15).</p><p>Variation. Males (n=5): total length 5.3–6.1; prosoma length 2.51–2.9; femur I length 4.2–4.7. Females (n=9): total length 4.87–7.0; prosoma length 2.41–3.15; femur I length 3.1–3.66.</p><p>Distribution. Known from the Amazonian region of Ecuador, in the vicinities of Yasuní National Park, in the provinces of Orellana and Napo, and from northern Peru, at Maynas province, Loreto department (Fig. 16).</p></div>	https://treatment.plazi.org/id/03AD87D6FFA4FFF8FDBA02CA0147BF86	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Rheims, Cristina A.;Casas, Cristian M.	Rheims, Cristina A., Casas, Cristian M. (2025): A new species of the spider genus Nativus Casas & Rheims, 2023 from Ecuador and Peru (Sparassidae: Heteropodinae). Zootaxa 5696 (2): 293-297, DOI: 10.11646/zootaxa.5696.2.9, URL: https://doi.org/10.11646/zootaxa.5696.2.9
