Nativus gen. nov., a new huntsman spider genus from South America (Araneae: Sparassidae: Heteropodinae) Author Casas, Cristian M. Grupo de Investigación Biodiversidad del Caribe Colombiano, Semillero de Investigación Sistemática de Artrópodos Neotropicales, Departamento de Biología, Universidad del Atlántico, Barranquilla, Colombia. Author Rheims, Cristina A. 0000-0003-4418-0552 Laboratório de ColeçƖes Zoológicas, Instituto Butantan, Av. Vital Brasil, 1500, 05503 - 900, São Paulo, SP, Brazil. carheims @ gmail. com; https: // orcid. org / 0000 - 0003 - 4418 - 0552 carheims@gmail.com text Zootaxa 2023 2023-10-25 5360 1 1 43 https://www.mapress.com/zt/article/download/zootaxa.5360.1.1/52103 journal article 278360 10.11646/zootaxa.5360.1.1 f88dc475-4761-4d63-bf1a-9c14122d381b 1175-5326 10146274 C97810F4-A6EB-4040-8DC4-0BBCD687E9AF Nativus hazzii sp. nov. Figs 19−33 Type material: Holotype : COLOMBIA : Amazonas : ♂, corregimiento La Pedrera , quebrada El Ayo ( -1.5833 , -69.4666 ), April 2001 , J. Pinzón & A. Sabogal leg. (ICN-Ar-12999) . Paratypes : COLOMBIA : Amazonas : 1♂, 2 ♀ , same locality as for holotype, April 2001 , J. Pinzón & A. Sabogal leg. (ICN-Ar-5789); 1 ♂, 2 ♀ , same locality as holotype, May 2002 , J. Pinzón leg. (ICN-Ar-13000) . Vaupés : 1♀ , Taraira , Serranía Taraira ( -0.8988 , -69.7021 ), April 2012 (ICN-Ar-13001) . FIGURES 19–23 . Nativus hazzii sp. nov. , male (ICN-Ar-12999). 19−20 Habitus (19 dorsal, 20 ventral); 21−23 Left palp (21 prolateral, 22 ventral, 23 retrolateral). Scale lines 19−20 = 2 mm; 21−23 = 1 mm. FIGURES 24–27 . Nativus hazzii sp. nov. , female (ICN-Ar-12999). 24−25 Habitus (24 dorsal, 25 ventral); 26−27 Epigyne/ vulva (26 ventral, 27 dorsal). Scale lines: 24−25 = 2 mm; 26−27 = 1 mm. Etymology. The specific name honors arachnologist Dr. Nicolas Hazzi (George Washington University), for his contributions to the knowledge of biogeography, systematics and taxonomy of Neotropical ctenids; name in genitive case. Diagnosis. Males of N. hazzii sp. nov. resemble those of N. juruti sp. nov. ( Figs 47−49 ), N. nocaima sp. nov. ( Figs 91−93 ) and N. tupana sp. nov. ( Figs 119−121 ) by the palps with tegulum bearing small, wider than long RdP and sinuous E. They are distinguished from N. tupana sp. nov. by the DTA smooth with no medial projections ( Figs 28−29 ) (present in N. tupana sp. nov. ) and from N. juruti sp. nov. and N. nocaima sp. nov. by the dRTA with two similar sized branches (ventral branch shorter than dorsal branch in N. juruti sp. nov. and N. nocaima sp. nov. ). Females are distinguished from all congeners by LL in roughly an inverted Y-shape ( Fig. 31 ). Description. Male ( holotype ): Prosoma orange brown, with slightly darker lateral margins; cephalic region with longitudinal stripes extending posteriorly from behind posterior eyes; fovea dark brown, thoracic striae slightly lighter; eye borders black. Chelicerae pale orange brown. Legs pale brown, lighter than prosoma. Endites pale brown, distally lighter. Labium orange brown, distally pale brown. Sternum yellowish cream colored with orange margins. Opisthosoma yellowish cream colored; dorsally with few scattered white marks laterally and two pairs of round, brown muscle impressions; ventrally with V-shaped lines of muscle impressions. Spinnerets pale yellowish cream colored ( Figs 19−20 ). Total length 5.51. Prosoma: 2.6 long, 2.84 wide. Opisthosoma: 2.76 long, 1.84 wide. Eyes: diameters: 0.15, 0.17, 0.28, 0.36; interdistances: 0.51, 0.52, 0.70, 0.63, 0.69, 0.68. Legs (2143): I: 17.44 (4.38, 1.22, 5.08, 4.9, 1. 86); II: 20.96 (5.42, 1.02, 5.87, 6.05, 2.6); III: 13.01 (3.61, 0.81, 3.94, 3.34, 3.84, 1.41); IV: 17.27 (4.9, 0.94, 3.78, 5.55, 2.1). Spination follows the generic pattern, except femur IV: p1-1-1, d0-1-1, r0-1-1; tibiae I−II: p1-0-1, d1-1-1, r1-0-1, v2-2-0; tibia III: p1-0-1, d1-0-1, r1-0-1, v2-2-0; tibia IV: p1-0-1, d1-1-1, r1-0-1, v2-2-0. Palp: PTA finger-like, roughly 1.5 times longer than wide; VTA triangular, displaced retrolaterally; vRTA two times longer than wide in retrolateral view; dRTA bifid, resembling a small bird (in retrolateral view), with two pointed branches; tegulum with small RdP at least three times wider than long; bp roughly triangular, as long as wide, membranous at center with hyaline margins; DTA with no projections ( Figs 21−23 , 28−30 ). FIGURES 28–33 . Nativus hazzii sp. nov. 28−30 Male (ICN-Ar-12999), left palp (28 prolateral, 29 ventral, 30 retrolateral); 31−33 Female (ICN-Ar-5789), epigyne/vulva (31 ventral, 32 dorsal, 33 schematic course of internal duct system). Scale lines: 1 mm. bp = projection at base of embolus; C = conductor ; CO = copulatory opening; COd = copulatory opening depression; dRTA = dorsal branch of RTA; DTA = dorsal tegular apophysis; E = embolus; ed = encapsulated part of internal ducts; FD = fertilization duct; fw = first winding of copulatory duct; LL = lateral lobe; MS = median septum; PTA = prolateral tibial apophysis; RdP = retrodistal tegular protrusion; RpP = retroproximal cymbial projection; STlb = subtegular locking lobe; vRTA = ventral branch of RTA; VTA = ventral tibial apophysis. Female ( paratype ): Prosoma orange-brown; cephalic area with longitudinal brown stripes extending posteriorly from behind PLE, PME and from between AME; fovea and thoracic striae brown; eye borders black. Chelicerae orange-brown. Legs orange brown, lighter than prosoma. Endites pale orange, distally lighter. Labium brown, distally orange brown. Sternum yellowish cream colored with orange margins. Opisthosoma brownish gray; dorsally with few scattered white marks laterally on anterior half and two pairs of brown, round muscular impressions; ventrally with two roughly parallel lines of muscle impressions. Spinnerets orange brown, distally lighter ( Figs 24−25 ). Total length: 7.11. Prosoma: 2.60 long, 3.00 wide. Opisthosoma: 4.11 long, 2.51 wide. Eyes: diameters: 0.23, 0.27, 0.27, 0.30; interdistances: 0.33, 0.35, 0.46, 0.44, 0.46, 0.47. Legs (2143): I: 14.58 (3.93, 1.38, 4.23, 3.41, 1.63); II: 15.71 (4.05, 1.60, 4.61, 3.96, 1.49); III: 11.90 (3.38, 1.15, 3.08, 3.11, 1.18); IV: 14.45 (4.12, 1.14, 3.53, 3.98, 1.68). Spination follows the generic pattern, except tibiae I−II: p0-0-1, r0-0-1; tibiae III−IV: d1-0-1; metatarsus IV: p1-1-2, r1-1-2, v2-2-0. Epigyne: EF roughly as wide as long; LL fused medially, converging anteriorly; MS triangular, as wide as long, posterior to fused part of LL; pair of long elliptical COd, bearing pair of CO situated posteriorly ( Figs 26 , 31 ). Vulva: CD with first winding posteriad then bent antero-laterad; encapsulated part of internal ducts more than two times longer than wide, more dilated posteriorly; FD anteriad ( Figs 27 , 32−33 ). Variation. Males (n = 3): Total length 5.51−6.78; prosoma length 2.6−3.17; femur I length 4.04−4.38. Females (n = 4): Total length 6.78−7.11; prosoma length 2.60−3.17; femur I length 3.93−4.04. Distribution. Only known from the type locality, in Amazonas, Colombia ( Fig. 142 ).