Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae) Author Miglio, Laura Tavares 0000-0002-9101-8657 Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Laboratório de Aracnologia, Av. Perimetral, 1901, Terra Firme, Cep: 66077 - 830, Belém, Pará, Brazil. https: // orcid. org / 0000 - 0002 - 9101 - 8657, lauramiglio@gmail.com Author Pérez-Miles, Fernando 0000-0002-4367-6276 Facultad de Ciencias, Sección Entomología, Iguá 4225, 11400, Montevideo, Uruguay. ® myga @ fcien. edu. uy, https: // orcid. org / 0000 - 0002 - 4367 - 6276 myga@fcien.edu.uy Author Bonaldo, Alexandre B. 0000-0002-9101-8657 Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Laboratório de Aracnologia, Av. Perimetral, 1901, Terra Firme, Cep: 66077 - 830, Belém, Pará, Brazil. https: // orcid. org / 0000 - 0002 - 9101 - 8657, bonaldo@museu-goeldi.br text Megataxa 2020 2020-10-09 2 1 1 256 journal article 3667 10.11646/megataxa.2.1.1 f7793976-e4e9-4562-a9cd-eda910d77fa0 2703-3090 5597237 D8203766-9E7B-468F-9E75-F21393A1BA3D 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 ) . FIGURE 133. Actinopus osbournei sp. nov. , male: A–F MCTP 8859 (Automontage photos) and MCTP 8850 (SEM Images): A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral; D. Cheliceral teeth, ventral; E. Rastellum, dorsal; F. Rastellum, ventral. 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. FIGURE 134. Actinopus osbournei sp. nov. , male: A–D MCTP 8859 (Automontage photos) and MCTP 8850 (SEM Images): A. Patella III, dorsal; B. Tibia III, dorsal; C. Patella IV, dorsal; D. Tibia IV, dorsal. MAP 7. Distribution map of Actinopus dioi sp. nov. and Actinopus osbournei sp. nov. FIGURE 135. Actinopus osbournei sp. nov. , male: A–C MCTP 8859: A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA- Paraembolic apophysis; BTA -Basal Tegular Apophysis; PAc -Prolateral Accessory keel; PI - Prolateral Inferior keel; PS -Prolateral Superior keel; Arrows: Serrated area. Scale line: 1 mm. 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). FIGURE 136. Actinopus dioi sp. nov. , male: A–F MPEG (Automontage photos) and MPEG (SEM Images): A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral; D. Cheliceral teeth, ventral; E. Rastellum, dorsal; F. Rastellum, ventral. FIGURE 137. Actinopus dioi sp. nov. , male: A–D MPEG (Automontage photos) and MPEG (SEM Images): A. Patella III, dorsal; B. Tibia III, dorsal; C. Patella IV, dorsal; D. Tibia IV, dorsal. Distribution. BRAZIL . Rio Grande do Sul : Uruguaiana ( Map 7 ).