Nerudiella quenes Porto, Derkarabetian, Giribet & Pérez-González, 2024, sp. nov.
Creators: name: Porto, Willians
name: Derkarabetian, Shahan
name: Giribet, Gonzalo
name: Pérez-González, Abel
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Opiliones
Triaenonychidae
Nerudiella
Nerudiella quenes

description: Nerudiella quenes sp. nov.
Figs 140, 141
Material examined.
Holotype. ♂ Chile. Curicó Quebrada in front of Los Queñes, 34.99614 ° S, 70.80994 ° W, 665 m A. Ojanguren, A. Pérez-González, M. Ramírez, G. Azevedo, W. Porto coll., 10. I. 2018 (MNHNCL). Paratypes. Chile. Curicó: Quebrada in front of Los Queñes, gorge in front of Los Queñes, 34.99614 ° S, 70.80994 ° W, 665 m, A. Ojanguren, A. Pérez-González, M. Ramírez, G. Azevedo, W. Porto coll., 10. I. 2018, 1 ♀ 3 imm.
Etymology.
The specific epithet refers to the type locality of the species, the department of Los Queñes, located in the commune of Romeral, province of Curicó, Chile. Noun in apposition.
Diagnosis.
This species can be distinguished from the other species in the genus by the morphology of the male genitalia, which includes the robust capsula externa with a “ V ” - shaped slit and long capsula interna with a triangular apical portion.
Distribution.
Chile: Maule Region (Fig. 4 F).
Description of male holotype.
Measurements: Total length 2.0, carapace length 0.84, dorsal scutum length 1.7, carapace max. width 12, mesotergum max. width 1.6. Appendage measurements: Pedipalps. Trochanter length 0.22, femora length 0.79, patella length 0.43, tibia length 0.56, tarsus length 0.66. Leg I: trochanter (tr) 0.21, femora (fe) 0.87, patella (pa) 0.47, tibia (ti) 0.69, metatarsus (mt) 0.77, tarsus (ta) 0.66. II: tr 0.20, fe 1.1, pa 0.55, ti 0.86, mt 0.96, ta 1.2. III: tr 0.28, fe 0.75, pa 0.34, ti 0.58, mt 0.70, ta 0.60. IV: tr 0.30, fe 1.1, pa 0.53, ti 0.85, mt 1.1, ta 0.66.
Dorsum (Fig. 140). Eta (η) hourglass-shaped dorsal scutum. Low ocularium. Dorsal scutum microgranulate, without clear delineation of areas.
Chelicerae. Segment I with a small tubercle on the dorso-distal surface. Segment II with a frontal tubercle and bearing few setae.
Pedipalps. Trochanter with a small ectal and dorsal tubercles. Femora with two prominent ventroproximal spines and three prominent dorsal spines. Patella with two ventral setiferous granules. Tibia with three ectal and two mesal spines with subdistal setae, with scant granules in ventral view. Tarsus with four ectal and three mesal spines with subdistal setae.
Legs. Coxa II with ~ 8 rounded setiferous tubercles. Spiracles not obstructed by bridges. Sternum arrow-shaped. Legs I – IV covered in setae, tarsal area, and calcaneus densely setose. Tibiae I – III with a ventral and dorsal row of small setiferous tubercles, IV with a row of four distal-ventral tubercles with setae. Calcaneus smaller than astragalus, ≥ 3 × smaller (leg I), 4 × (II, III), and 5 × (leg IV). Tarsal count: 3–6 – 4 – 4.
Penis (Fig. 141). Pars distalis with a large ventral plate bearing a cleft that divides the plate into two lamellae. Each lamella has three pointed macrosetae on the ventral surface and one macroseta on the dorsal surface; capsula externa covering dorsal and lateral surfaces, having a cleft dividing dorsal fold into two halves; there is a dorsolateral plate attached to the pars basalis. Capsula interna longer than the capsula externa, with a visible stylus in its apical portion.
Female. Similar to male, with shorter pedipalpal femora.
Female measurements. Total length 2.07, carapace length 0.89, dorsal scutum length 1.72, carapace max. width 1.24, mesotergum max. width 1.77. Appendage measurements: Pedipalps. Trochanter length 0.19, femora length 0.76, patella length 0.47, tibia length 0.50, tarsus length 0.68. Leg I: trochanter (tr) 0.22, femora (fe) 0.84, patella (pa) 0.44, tibia (ti) 0.65, metatarsus (mt) 0.71, tarsus (ta) 0.64. II: tr 0.24, fe 1.09, pa 0.51, ti 0.87, mt 0.95, ta 1.3. III: tr 0.23, fe 0.75, pa 0.35, ti 0.60, mt 0.72, ta 0.61. IV: tr 0.31, fe 1.08, pa 0.57, ti 0.93, mt 1.16, ta 0.68.
description: Published as part of Porto, Willians, Derkarabetian, Shahan, Giribet, Gonzalo & Pérez-González, Abel, 2024, Systematic revision of the South American " Nuncia " (Opiliones, Laniatores, Triaenonychidae), pp. 1-149 in ZooKeys 1207 on pages 1-149, DOI: 10.3897/zookeys.1207.120068