Actinopus osbournei, Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020

Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020, Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae), Megataxa 2 (1), pp. 1-256: 147-152

publication ID

http://doi.org/ 10.11646/megataxa.2.1.1

publication LSID

lsid:zoobank.org:pub:D8203766-9E7B-468F-9E75-F21393A1BA3D

DOI

http://doi.org/10.5281/zenodo.5655631

persistent identifier

http://treatment.plazi.org/id/0975136A-FF1F-CECA-FCD5-F8B5DA203997

treatment provided by

Plazi

scientific name

Actinopus osbournei
status

sp. nov.

Actinopus osbournei   sp. nov.

Figs 133–135 View FIGURE 133 View FIGURE 134 View FIGURE 135 , Map 7 View 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 View Materials ) GoogleMaps   . Paratypes: BRAZIL. Rio Grande do Sul: Uruguaiana, Imbaá , [29º 47’ 15.98” S 57º 03’ 43.35” W], 1♂, i. 2009, R GoogleMaps   . Alves ( MCTP 8848 View Materials , 8849 View Materials , 8855 View Materials , 8856 View Materials , 8858 View Materials , 8875 View Materials ); 24.iv.2009, R. Alves leg. ( MCTP 8848 View Materials ); ii.2010, R. Alves leg. ( MCTP 8861 View Materials , 8862 View Materials ); 2♂, i. 2009, R   . Alves ( MCTP 8851 View Materials , 8852 View Materials , 8853 View Materials ); ii.2010, R. Alves leg. ( MCTP 8860 View Materials , 8863 View Materials , 8864 View Materials ); 3♂, i. 2009, R   . Alves ( MCTP 8854 View Materials ); 4♂, i. 2009, R   . Alves ( MCTP 8850 View Materials , 2 View Materials ♂ 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 View FIGURE 115 A–C) by PA developed; tegulum shorter; cusps of serrated area present below PAc; and thinner embolus ( Fig. 135 View FIGURE 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 View FIGURE 133 ). 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 View FIGURE 133 ). Rastellum protuberant, digitiform, hirsute, with spines apically ( Fig. 133 View FIGURE 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 View FIGURE 133 ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 134 View FIGURE 134 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 134 A, C View FIGURE 134 ). Tibia IV without spines on dorsal surface ( Fig. 134 D View FIGURE 134 ). 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 View FIGURE 133 ). 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 View FIGURE 135 A–C).

Distribution. BRAZIL. Rio Grande do Sul: Uruguaiana ( Map 7 View MAP 7 ).

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Departamento de Geologia, Universidad de Chile