Actinopus palmar Rios-Tamayo & Goloboff 2018
Creators: name: Miglio, Laura Tavares
name: Pérez-Miles, Fernando
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Actinopodidae
Actinopus
Actinopus palmar

description: Actinopus palmar Ríos-Tamayo & Goloboff, 2018
Figs 187–189, Map 11
Actinopus palmar Ríos-Tamayo & Goloboff, 2018: 81, fig. 26 A–G, 45 (holotype ♂, [31º 51’ S 58º 19’ W], Parque Nacional “El Palmar”, Entre Ríos, 12–16.ii.1980, P. Grosso and P. Goloboff leg., MACN-Ar 198206, examined); World Spider Catalog, 2020.
Diagnosis. Males of Actinopus palmar differ from those of all other species of the group cucutaensis by the narrow ATP base, copulatory bulb with three prolateral keels in prolaterodorsal view and ATP with a big serrated area (Fig. 189 A–C). Additionally, they differ from those of all other species of Actinopus, except A. crassipes, A. dubiomaculatus, A. pusillus, A. emas, A. bocaina, A. laventana and A. gerschiapelliarum, by the distal leg articles being paler than proximal leg articles and the palp.
MALE (MACN 19826): Total length 8.62; Carapace, long 4.3; wide 3.6. Carapace anterior part tapering. Eyes. Anterior row slightly procurved, posterior row recurved (Fig. 187 B). One bristle between AME-clypeus and also ALE–PLE. Sternum with eight sigilla near center and two distal sigilla very fused to each other (Fig. 187 C). Rastellum protuberant, inverted V-shaped, hirsute, with many spines on apex (Fig. 189 D–E). Chelicerae with denticles along Prolateral row (Fig. 187 D). Patella and tibia III with distal crown of well-developed thorns (Fig. 188 A–B).Patellae III and IV with spines on prolaterodorsal face (Fig. 188 A, C). Patella IV without spines dorsally (Fig. 188 D). Ventral pseudoscopulae occupying 30% of tarsi I, 50% of II and 100% of III and IV. Pseudoscopula of tarsi I and II with setae spaced, forming diffuse group of bristles; On tarsi III and IV, compact. Carapace and Chelicerae reddish brown, sternum yellowish brown, coxae, trochantera, femora and patellae reddish brown, tibiae, metatarsi and tarsi yellowish brown, abdomen pale gray (Fig. 187 A). Eyes: Diameters: PME 0.15 PLE 0.18 ALE 0.28, AME 0.21; MOQ: Length 0.68, front width 1.78, back width 1.5; Interdistances: PME–PME 0.90, PLE–PME 0.12, AME–AME 0.09, ALE–AME 0.65, ALE–PLE 0.34, AME–PME 0.25. Ocular area: OAL 2.53, OAW 2.62, and IF 1.4. Body: Clypeus: 0.15; Fovea: 1.3; Labium: long 0.85; wide 0.75; Chelicerae: long 2.43; wide 1.18; Sternum: long 2.8; wide 2.1. Abdomen: long 4.56; wide 3.5. Leg measurements: I: Fe 3.62/ Pa 1.62/ Ti 2.12/ Me 3.25/ Ta 1.75/ total 12.37. II: 4/ 1.75/ 2.5/ 2.87/ 1.87/ 13. III: 3/ 2.37/ 1.75/ 3/ 2.125/ 12.25. IV: 4.12/ 1.37/ 3.25/ 3.12/ 2.37/ 14.25. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0-0-1, d0, p0, r0; ti v5-6-8, d0, p0, r0; Me v5-14-11, d0, p1-0-2, r0; ta v6-10-9, d0, p0-0- 2, r1-3-4. II—Fe v0, d0, p0, r0; Pa v0-0-2, d0, p0, r0; ti v4-4-6, d0, p0-0-1, r4-8-6; Me v5-5-8, d0, p0-0-2, r2-2-4; ta v7-11-13, d0, p0-0-1, r3-3-7. III—Fe v0, d1-4-3, p0, r0; Pa v0-0-2, d5-3-14, p2-0-3, r0-0-2; ti v0-0-2, d1-0-9, p0- 0-3, r0-0-2; Me v0-0-3, d1-3-0, p0-2-1, r0-1-2; ta v0, d0, p1-2-7, r0-2-5; IV—Fe v0, d0, p0, r0; Pa v0, d16-16-8, p0-1-1, r0; ti v0-0-2, d0, p0-0-1, r0; Me v0-0-2, d0, p0-2- 3, r0; ta v0, d0, p2-6-7, r0-1-2. Palp: PA well-developed embolus with three keels (Pa, PI and PS). ATP almost 1/2 size of embolus. BTA developed; serrated area large, from beside embolus base to middle of embolus; embolus inserted at 80°; embolar base thin (Fig. 189 A–C).
VARIATION
MALES (n=2): Eyes: Diameters: PME 0.12–0.15, PLE 0.15–0.18, ALE 0.28–0.31, AME 0.12–0.21; MOQ: Length 0.62–0.68, front width 1.68–1.78, back width 1.5– 1.56; I nterdistances: PME–PME 0.84–0.90, PLE–PME 0.09–0.12, AME–AME 0.09–0.15, ALE–AME 0.59–0.65, ALE–PLE 0.28–0.34, AME–PME 0.25–0.28. Ocular area: OAL 2.5–2.53, OAW 2.12–2.62, and IF 1.12–1.4. Body: Total length: 6.75–8.62; Carapace: long 3.62–4.3; wide 3.25–3.6; Clypeus: 0.12–0.15; Fovea: 1.30–1.40; Labium: long 0.84–0.85; wide 0.75–0.76; Chelicerae: long 1.56–2.43; wide 1.03–1.18; Sternum: long 2.24–2.8; wide 2–2.1. Abdomen: long 3.62–4.56; wide 2.75–3.5. Leg measurements: I: Fe 3.62–4/ Pa 1.37–1.62/ Ti 2.12– 2.37/ Me 2.87–3.25/ Ta 1.75–1.87/ total 12.37–12.5. II: 3.75–4/ 1.12–1.75/ 2.12–2.5/ 2.87/ 1.75–1.87/ 11.62–13. III: 2.75–3/ 1.5–2.37/ 1.25–1.75/ 2.5–3/ 2–2.12/ 10–12.25. IV: 3.62–4.12/ 1.37–1.62/ 2.75–3.25/ 3–3.12/ 2.25–2.37/ 13.25–14.25. Formula 4123.
Material examined. ARGENTINA: Entre Ríos, Parque Nacional “El Palmar”, [58° 19’ 21” S 31° 51’ 11” W], 1♂, 12–16.ii.1980, Grosson & P. A. Goloboff leg. (MACN 19826); iii.1995, C. J. Grismado leg. (MACN 19839).
Distribution. ARGENTINA. Entre Ríos (Map 11).
description: Published as part of Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020, Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae), pp. 1-256 in Megataxa 2 (1) on pages 207-210, DOI: 10.11646/megataxa.2.1.1, http://zenodo.org/record/5597237