Nativus janai, 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 : 12-14

Nativus janai sp. nov.

Figs 34−41

Type material: Holotype: COLOMBIA: Leticia : ♂, Reserva Forestal del Rio Calderon, Estación Biologica el Zafire (-4.0058, -69.9125), 146 m, 5−7 December 2007, L. Franco & S. Florez leg. ( MPUJ _ ENT0070440 ) . Paratypes: COLOMBIA: Leticia: 2 ♂, same data as for holotype, ( MPUJ _ ENT0086798 ) .

Additional material examined: COLOMBIA: Leticia: 1♂, Leticia, Comunidad Monilla Amena Km 9 (-4.1121, -69.928), 70 m, 30 October 2004, A. Daza & E. Torres leg. ( MPUJ _ ENT0086786 ); 1 ♂, same locality as for previous specimen, 35m, October 2005, Marin & M. Salgado leg. ( MPUJ _ ENT0087072 )

Etymology. The specific name refers to Janai (meaning incomprehensible to the senses), a general designation of the indigenous Uitoto tribe, from southeastern Colombia and northern Peru, for ghostly or supernatural creatures; noun in apposition.

Diagnosis. Males of N. janai sp. nov. resemble those of N. napo sp. nov. ( Figs 74−76 ) and N. yurupari sp. nov. ( Figs 136−138 ) by the tegulum with large triangular RdP, at least 1.5 times longer than wide and E sinuous in the male palps. It is distinguished from N. napo sp. nov. by the dRTA bifid with two branches ( Figs 40−41 ) (single and distally truncated in N. napo sp. nov.) and from N. yurupari sp. nov. by the bp large, irregularly-shaped, slightly wider than long, with anterior margin medially depressed ( Fig. 40 ) (keel-like, over two times wider than long in N. yurupari sp. nov.). Females unknown.

Description. Male (holotype): Prosoma orange brown with darker margins, slightly darker at eye area; fovea dark brown; eye borders black. Chelicerae pale brown, lighter than prosoma. Legs and palps pale brownish orange. Endites pale brown. Labium brown, anteriorly lighter. Sternum yellowish cream colored with pale brown margins. Opisthosoma grey; dorsally with two pairs of brownish gray, rounded muscle impressions. Spinnerets cream colored ( Figs 34−35 ). Total length 5.77. Prosoma: 2.95 long, 3.15 wide. Opisthosoma: 2.89 long, 1.86 wide. Eyes: diameters: 0.31, 0.33, 0.31, 0.42; interdistances: 0.49, 0.52, 0.70, 0.63, 0.67, 0.68. Legs (2143): I: 19.97 (5.13, 1.43, 5.87,.31, 2.23); II: 23.26 (5.97, 1.56, 6.85, 6.36, 2.52); III: 13.61 (3.74, 1.10, 3.76, 3.53, 1.48); IV: 18.87 (4.91, 1.20, 4.96, 5.60, 2.20). Spination follows the generic pattern, except femur III: r0-0-1; tibia III: p0-0-1; tibia IV: d1-0-1; metatarsus III: p0-1-0. Palp: PTA finger-like, bent distally, two times longer than wide; VTA triangular, displaced retrolaterally; vRTA roughly 2.5 times longer than wide in retrolateral view; dRTA with dorsal branch large, spoon-shaped, slightly longer than wide, widest medially, and ventral branch small, distally pointed ( Figs 36−41 ).

Female: Unknown.

Variation. Males (n = 5): Total length 5.77−6.52; prosoma length 2.95−3.44; femur I length 5.13−5.85.

Distribution. Only known from the type locality in Leticia, southern 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 34–38. Nativus janai sp. nov., male (MPUJ_ENT0070440). 34−35 Habitus (34 dorsal, 35 ventral); 36−38 Left palp (36 prolateral, 37 ventral, 38 retrolateral). Scale lines: 34−35 = 2 mm; 36−38 = 1 mm.

FIGURES 39–41. Nativus janai sp. nov., male (MPUJ_ENT0070440), left palp (39 prolateral, 40 ventral, 41 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 74–79. Nativus napo sp. nov. 74−76 Male (AMNH), left palp (74 prolateral, 75 ventral, 76 retrolateral); 77−79 Female (INPA), epigyne/vulva (77 ventral, 78 dorsal, 79 schematic course of internal duct system). Scale lines: 1 mm. bp = projection at base of embolus; C = conductor; CO = copulatory opening; 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.

FIGURES 136–141. Nativus yurupari sp. nov. 136−138 Male (IAvH-I-3156), left palp (136 prolateral, 137 ventral, 138 retrolateral); 139−141 Female (IAvH-I-3126), epigyne/vulva (139 ventral, 140 dorsal, 141 schematic course of internal duct system). Scale lines: 1 mm. bp = projection at base of embolus; C = conductor; CO = copulatory opening; 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.