Nativus hazzii, Casas & Rheims, 2023

Casas, Cristian M. & Rheims, Cristina A., 2023, Nativus gen. nov., a new huntsman spider genus from South America (Araneae: Sparassidae: Heteropodinae), Zootaxa 5360 (1), pp. 1-43 : 9-12

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) .

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 ).

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 ).

Figures

FIGURE 142. Record map for Nativus carare sp. nov., N. hazzii sp. nov., N. juriti sp. nov., N. janai sp. nov. and N. tawu sp. nov.

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.

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.

FIGURES 47–49. Nativus juriti sp. nov., male (MPEG 8561), left palp (47 prolateral, 48 ventral, 49 retrolateral). Scale lines: 1 mm. bp = projection at base of embolus; C = conductor; dRTA = dorsal branch of RTA; DTA = dorsal tegular apophysis; E = embolus; 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.

FIGURES 91–96. Nativus nocaima sp. nov. 91−93 Male (MPUJ_ENT0086707), left palp (91 prolateral, 92 ventral, 93 retrolateral); 94−96 Female (MPUJ_ENT0086708), epigyne/vulva (94 epigyne, dorsal, 95 vulva, ventral, 96 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.

FIGURES 117–120. Nativus tupana sp. nov., female (IBSP 8828). 117−120 Habitus (117 dorsal, 118 ventral); 119−120 Epigyne/vulva (119 ventral, 120 dorsal). Scale lines: 117−118 = 2 mm, 119−120 = 1 mm.

FIGURES 121–126. Nativus tupana sp. nov. 121−123 Male (IBSP 8828), left palp (121 prolateral, 122 ventral, 123 retrolateral); 124−126 Female (AMNH), epigyne/vulva (124 epigyne, ventral, 125 vulva, dorsal, 126 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; mp = median projection of the DTA; MS = median septum; PTA = prolateral tibial apophysis; RdP = retrodistal tegular protrusion; RpP = retroproximal cymbial projection; STlbn = subtegular locking lobe; vRTA = ventral branch of RTA.