Actinopus osbournei, sp. nov.
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 osbournei

description: Actinopus osbournei sp. nov.
Figs 133–135, Map 7
Type material. Holotype male from [29º 47’ 15.98” S 57º 03’ 43.35” W], Imbaá, Uruguaiana, Rio Grande do Sul, Brazil, ii.2010, R. Alves leg. (MCTP 8859). Paratypes: BRAZIL. Rio Grande do Sul: Uruguaiana, Imbaá, [29º 47’ 15.98” S 57º 03’ 43.35” W], 1♂, i. 2009, R. Alves (MCTP 8848, 8849, 8855, 8856, 8858, 8875); 24.iv.2009, R. Alves leg. (MCTP 8848); ii.2010, R. Alves leg. (MCTP 8861, 8862); 2♂, i. 2009, R. Alves (MCTP 8851, 8852, 8853); ii.2010, R. Alves leg. (MCTP 8860, 8863, 8864); 3♂, i. 2009, R. Alves (MCTP 8854); 4♂, i. 2009, R. Alves (MCTP 8850, 2 ♂ removed for SEM).
Etymology. The specific name is in honor of musician John Michael Osbourne or Ozzy Osbourne, the founder of heavy metal, affiliated to a band called Black Sabbath, in addition to his solo career.
Diagnosis. Males of A. osbournei differs from those of A. dioi (Fig. 115 A–C) by PA developed; tegulum shorter; cusps of serrated area present below PAc; and thinner embolus (Fig. 135 A–C).
MALE (MCTP 8859): Total length 6.83; Carapace, long 3.5; wide 3.25. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved (Fig. 133 B). With few weak short bristles between AME-clypeus, between ALE–ALP, between posterior eyes-fovea and lateral eyes-edge of carapace. Sternum with eight sigilla converging to the middle, but separated, two basal sigilla bigger and more fused than others (Fig. 133 C). Rastellum protuberant, digitiform, hirsute, with spines apically (Fig. 133 E–F). Chelicerae with nine denticles along prolateral row of teeth. Prolateral row with five megateeth and one basal tooth. Retrolateral row with five megateeth and three denticles, two between the three basal and two basal megateeth and one between the two basal megateeth (Fig. 133 D). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle (Fig. 134 A–B). Patellae III and IV with spines on prolaterodorsal face (Fig. 134 A, C). Tibia IV without spines on dorsal surface (Fig. 134 D). Ventral pseudoscopulae occupying 50% of tarsus I, 80% of II and 90% 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, chelicerae, sternum, coxae, trochantera, femora, patellae and tibiae yellowish brown; Metatarsi and tarsi yellowish brown, paler than other articles; Abdomen gray with small spots of unpigmentation on dorsal surface (Fig. 133 A). Eyes: Diameters: PME 0.16, PLE 0.16, ALE 0.28, AME 0.12; MOQ: Length 0.59, front width 1.62, back width 0.5; Interdistances: PME–PME 0.84, PLE–PME 0.09, AME–AME 0.16, ALE–AME 0.44, ALE–PLE 0.28, AME–PME 0.28. Ocular area: OAL 2.2, OAW 2, and IF 1.6. Body: Clypeus: 0.17; Fovea: 1.33; Labium: long 0.75; wide 0.67; Chelicerae: long 1.25; wide 0.83; Sternum: long 2.33; wide 2. Abdomen: long 3.33; wide 2.58. Leg measurements: I: Fe 3.58/ Pa 1.5/ Ti 2.08/ Me 2.58/ Ta 1.75/ total 11.5. II: 3.17/ 1.42/ 1.92/ 2.58/ 1.67/ 10.75. III: 2.58/ 1.5/ 1.5/ 2.58/ 1.83/ 10. IV: 3.5/ 1.67/ 2.75/ 2.5/ 2/ 12.42. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v2-2-7, d0, p0, r0-0-2; Me v4-7-8, d0, p0- 3-2, r0; ta v1-2-3, d0, p1-1-3, r0. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v2-4-5, d0, p0, r0; Me v5-7-9, d0, p0, r0; ta v3-3-7, d0, p0-1-0, r0. III—Fe v0, d0, p0, r0; Pa v0, d4- 8-19, p0-0-1, r0-0-1; ti v0, d1-0-12, p0-0-2, r0-1-3; Me v1-1-3, d0, p0-1-1, r0-1-3; ta v0, d0, p0, r0; IV—Fe v0, d0, p0, r0; Pa v0, d14-7-5, p0-0-1, r0; ti v0-0-2, d0, p0, r0- 0-1; Me v2-1-3, d0, p0-1-1, r0-0-1; ta v0, d0, p0, r0. Palp: PA developed, embolus with three keels (PAc, PI and PS). BTA developed and placed medially on prolateral tegular surface; serrated area developed represented by many cusps below PAc in prolateral view; thin and elongated tegulum and thin embolar base. PS length on dorsal view reaching embolar edge (Fig. 135 A–C).
Distribution. BRAZIL. Rio Grande do Sul: Uruguaiana (Map 7).
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 147-152, DOI: 10.11646/megataxa.2.1.1, http://zenodo.org/record/5597237