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 reznori sp. nov. Figs 166–168 , Map 10 Type material. Holotype male from [ 22º 31’ 30.54” S 44º 06’ 13.60” W ], Volta Redonda , Rio de Janeiro , Brazil , ii.2002 , A. L. Costa do Carmo leg. ( IBSP 109992 ) . Paratypes : BRAZIL . Bahia : Barreiras , [ 12º 08’ 51.89” S 44º 59’ 42.38” W ], 1♂, 30.vii.2000 , E. Folly leg. ( IBSP 114462 ) . Rio de Janeiro : Volta Redonda , [ 22º 31’ 30.54” S 44º 06’ 13.60” W ], Floresta de Cicuta , 1♂, 11–18.vi.2001 – 4–11.iii.2002 , Equipe Biota leg. ( IBSP 136745 ) ; Barra Mansa , [ 22º 32’ 38.03” S 44º 07’ 19.83” W ], Campus do Sobeu , 1♂, 26–27.xii.1995 , E. F. Ramos leg. ( IBSP 107954 ) ; Itaguaí , Universidade Federal Rural do Rio de Janeiro ( UFRRJ ) , Km 47, [ 22º 45’ 47” S 43º 41’ 19” W ], 1♂, 8.vii.1957 , R . Mello leg. ( MNRJ 1972 ) ; Rio de Janeiro , Ilha do Fund „o, Instituto de Biologia , Dentro do Prédio RLCB , [ 22º 50’ 30” S 43º 14’ 09” W ], 2♂, 2008–2009 ( MNRJ 6793 ) . São Paulo : Ubatuba , Praia da Fortaleza , [ 23º 31’ 42.93” S 45º 09’ 57.15” W ], 1♂, 05.vi.2004 , A. M. Rosa leg. ( IBSP 114466 ) . Etymology. The specific name refers to musician and multi-instrumentalist Michael Trent Reznor, founder of industrial music, leader of the Nine Inch Nails and affiliated to many other bands, in addition to his producer career. Diagnosis. Males of Actinopus reznori differ from those of A. anselmoi ( Fig. 171 A–C) by the more conspicuous PA; two keels visible on prolateral copulatory bulb and serrated area dorsally located on prolateral embolus ( Fig. 168 A–C). MALE (IBSP 9992): Total length 7.4; Carapace, long 3.9; wide 3.5. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved ( Fig. 166 B ). With few short and weak bristles between AME-clypeus, between ALE–ALP, between posterior eyes-fovea and lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused than others ( Fig. 166 C ). Rastellum protuberant, digitiform, hirsute, with a row of short spines apically ( Fig. 166 E–F). Chelicerae with ten denticles along prolateral row of teeth. Prolateral row with five megateeth and one basal tooth. Retrolateral row with six megateeth and three denticles along three basal megateeth ( Fig. 166 D ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 167 A–B). Patellae III and IV with spines on prolaterodorsal surface ( Fig. 167 A, C ). Tibia IV without spines on dorsal surface ( Fig. 167 D ). Ventral pseudoscopulae occupying 50% of tarsus I, 70% of II, 10% of metatarsi III 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, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi and tarsi yellowish brown; tibia of palp yellow; Abdomen pale gray ( Fig. 166 A ). Eyes: Diameters: PME 0.18, PLE 0.28, ALE 0.34, AME 0.15; MOQ: Length 0.84, front width 2.18, back width 1.96; Interdistances: PME–PME 1.09, PLE–PME 0.09, AME–AME 0.18, ALE–AME 0.62, ALE–PLE 0.34, AME–PME 0.40. Ocular area: OAL 2.5, OAW 2.1, and IF 1.3. Body: Clypeus: 2; Fovea: 1.4; Labium: long 1.1; wide 0.9; Chelicerae: long 1.9; wide 1; Sternum: long 3.2; wide 2.8. Abdomen: long 3.3; wide 2.4. Leg measurements: I: Fe 4.75/ Pa 2/ Ti 3/ Me 3.5/ Ta 2.125/ total 15.37. II: 4.25/ 2/ 3.12/ 3.75/ 2/ 15.12. III: 3.5/ 2/ 2.25/ 3.87/ 2.37/ 14. IV: 4.87/ 2.12/ 4.25/ 4.37/ 2.5/ 18.12. Formula 4123. MAP 10. Distribution map of Actinopus reznori sp. nov. and Actinopus anselmoi sp. nov. FIGURE 168. Actinopus reznori sp. nov. , male: A–C IBSP 9992: A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA- Paraembolic apophysis; BTA -Basal Tegular Apophysis; PI -Prolateral Inferior keel; PS -Prolateral Superior keel. Arrow: Serrated area. Scale line: 1 mm. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0- 3-4, d0, p0-0-1, r0-0-1; Me v6-6-7, d0, p0-2-2, r2-3-2; ta v2-2-4, d0, p0, r0-2-2. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v2-4-4, d0, p0-0-2, r0-2-7; Me v3-6-7, d0, p0- 2-1, r2-3-3; ta v3-2-4, d0, p0-2-4, r0-3-6. III—Fe v0, d0, p0, r0; Pa v0, d6-5-28, p0-0-4, r0-0-1; ti v0-0-3, d1-0-13, p0-0-2, r0-0-3; Me v3-5-6, d0-1-5, p0-2-3, r0-3-4; ta v0, d0, p0-4-3, r0-0-5; IV—Fe v0, d0, p0, r0; Pa v0, d14-18- 10, p0, r0; ti v0-0-2, d0-0-1, p0, r0; Me v2-6-8, d0-0-2, p1-4-4, r0-0-1; ta v0, d0, p1-6-5, r1-3-4. Palp: PA small but conspicuous. Embolus with two keels (PI and PS). BTA developed, displaced dorsally in relation to a middle longitudinal line along prolateral tegular surface; serrated area represented by cusps dorsally located in prolateral view of embolus; PA continuous to PI; Embolar base thin ( Fig. 168 A–C). Distribution. BRAZIL . Bahia : Barreiras; Rio de Janeiro : Volta Redonda, Barra Mansa, Itaguaí, Rio de Janeiro ; and S„o Paulo: Ubatuba (Map 10).