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 itacolomi sp. nov. Figs 149–153 , Map 8 Type material. Holotype male from 20° 24.618’ S 43° 30.469’ W , Parque do Itacolomi , Ouro Preto , Minas Gerais , Brazil , 10–14.i.2005 , R . Bertani, C. S . Fukushima, M. P. M . Pavani & R . Martins leg. ( IBSP ) . Paratypes : BRAZIL . Bahia : Chapada Diamantina, Gerais da Volta da Serra, Estrada, 1198 m, 12° 39’ 1.62” S 41° 33’ 8.69” W , 1♂, 18.ii.2008 ( IBSP ) . Minas Gerais : Grão Mogol , Parque Estadual de Gr „o Mogol , 16º 33’ 11.6” S 42º 54’ 9.68” W , 1♂, 10–24.i.2014 , F. Leal leg. ( UFMG 14841 ) ; leme do Prado , Estaç „o Ecológica de Acau„, Linha de pitfall 1, aceiro em área de mata secundária/Acau„ 1, 17º 7’ 56.5” S 42º 43’ 58.9” W , 1♀ , 18–28.ii.2013 , P. H. Martins leg ( UFMG 18773 , UFMG 18774 ) ; linha de pitfall , trilha em área de mata com afloramento de cana, próximo a lagoa/ AC3-9 , 17º 8’ 0.7” S 42º 46’ 5.1” W , 1♂, 18–28.ii.2013 , P. H. Martins leg. ( UFMG 18784 , UFMG 18785 ) ; linha de pitfall , trilha em área de mata com afloramento de cana, próximo a lagoa/ AC3-10 , 17º 8’ 0.7” S 42º 46’ 5.1” W , 1♀ , 18–28.ii.2013 , P. H. Martins leg. ( UFMG 18786 ) ; sede da Estaç „o, coleta aleatória, área de mata secundária, próxima a ambiente urbano/ AC10-1 , 17º 7’ 56.22” S 42º 46’ 7.98” W , 1♀ , 18–28.ii.2013 , P. H. Martins leg. ( UFMG 18807 ) ; 2♀ , 18–28.ii.2013 , P. H. Martins leg. ( UFMG 18808 ) ; três Marias , [ 18° 12’ S 45° 13’ W ], 1♂, A. J. Mayhé-Nunes & J. M. Queiroz leg. ( IBSP , IBSP ) ; 2♂, A. J. Mayhé-Nunes & J. M. Queiroz leg. ( IBSP ); Diamantina , [ 18° 14’ S 43° 36’ W ], 1♂, 01.iii.2010 ( CAD 78); são Gonçalo do Rio Preto , Parque Estadual do Rio Preto ( PERP ) , [ 18° 9’ 15” S 43° 20’ 50” W ], 1♂, 10.xi.2009 , C. Rodrigues ( CAD 79); 20–25.x.2010 , G. Monteiro , F. Sá , W. F. Silva & J. P. L. Guadanucci leg. ( CAD 251); Gouveia , Fazenda Fagundes , 18º 25’ 56.42” S 43º 44’ 49.56” W , 1♂, 7.i.2013 , P. H. Martins leg. ( UFMG 19886 ) ; Carrancas , Fazenda Chapada , [ 21º 29’ 23” S 44º 38’ 43” W ], 1♂, 18.i.2008 , S. S. P. Almeida leg. ( MNRJ 6796 ) . FIGURE 151. Actinopus itacolomi sp. nov. , female: A–F UFMG 18876: A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral; D. Cheliceral teeth, ventral; E. Rastellum, dorsal; F. Rastellum, ventral. Etymology. The specific name is a noun in apposition from the type locality name. Diagnosis. Males of Actinopus itacolomi resemble those of A. longipalpis ( Fig. 156 A–C), A. tutu ( Fig. 143 A–C) and A. azaghal ( Fig. 148 A–C) by the presence of three keels in prolateral view of embolus, small total length, and inconspicuous patterns of coloration on legs and palp, when present. Differs from A. longipalpis by the presence of embolar serrated area. They resemble those of A. tutu by BTA inserted medialy in the prolateral tegulum. They differ from those of all those species by the point of origin of PA between PI and PAc; serrated area, along to PAc; tegulum and embolus large; swelling above PA present. FIGURE 152. Actinopus itacolomi sp. nov. , female: A–D UFMG 18876: A. Patella III, dorsal; B. Tibia III, dorsal; C. Patella IV, dorsal; D. Tibia IV, dorsal. MALE (IBSP): Total length 10.12; Carapace, long 3.87; wide 4.62. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved ( Fig. 149 B ). With 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. 149 C ). Rastellum inconspicuous than others, inverted V-shaped, hirsute, without spines apically ( Fig. 149 E–F). Chelicerae with five denticles along Prolateral row and one along retrolateral row. Prolateral row with six megateeth and one basal tooth. Retrolateral row with seven megateeth ( Fig. 149 D ). Patella and tibia III with distal crown of well-developed thorns, on patella III interrupted in middle and on tibia III not interrupted in middle ( Fig. 150 A–B). Patellae III and IV with spines on prolaterodorsal face( Fig.150A,C ).Tibia IV without spines on dorsal surface ( Fig. 150 D ). Ventral pseudoscopulae occupying 50% of tarsus I, 70% of II, 100% of III and IV and 10% of metatarsus IV. Pseudoscopula of tarsi I, tarsi II and metatarsi IV 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 reddish brown; tibia of palp orangish brown, paler than other articles. Abdomen pale brown ( Fig. 149 A ). Eyes: Diameters: PME 0.2, PLE 0.28, ALE 0.36, AME 0.4; MOQ: Length 0.88, front width 2.24, back width 2; Interdistances: PME–PME 1.2, PLE–PME 0.04, AME–AME 0.2, ALE–AME 0.6, ALE–PLE 0.44, AME–PME 0.4. Ocular area: OAL 3.25, OAW 2.5, and IF 1.75. Body: Clypeus: 0.25; Fovea: 1.87; Labium: long 1; wide 0.75; Chelicerae: long 2.12; wide 1.25; Sternum: long 3.12; wide 2.5. Abdomen: long 6.25; wide 4.12. Leg measurements: I: Fe 4.75/ Pa 2/ Ti 3.5/ Me 3.12/ Ta 2/ total 15.37. II: 4.12/ 2/ 2.62/ 3.5/ 2.12/ 14.37. III: 3.5/ 2/ 2.12/ 3.25/ 2.12/ 13. IV: 4.75/ 2.12/ 3.87/ 3.87/ 2.5/ 17.12. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-3-4, d0, p0-0-2, r0-0-1; Me v5-6-4, d0, p2-3-3, r3-4-2; ta v4-3-5, d0, p2-3-2, r0. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-2-5, d0, p0- 0-1, r0-0-1; Me v6-4-5, d0, p1-4-3, r2-2-0; ta v6-5-5, d0, p2-4-3, r0. III—Fe v0, d0, p0, r0; Pa v0, d5-11-24, p0-0-1, r0-0-2; ti v0-0-2, d1-0-14, p0-0-1, r0-0-1; Me v3-5-3, d2- 1-1, p0-1-2, r1-3-5; ta v0, d0, p0, r0-4-5; IV—Fe v0, d0, p0, r0; Pa v0, d11-11-5, p0, r0; ti v0-0-2, d0, p0, r0; Me v3-2-4, d0, p1-2-2, r0-1-0; ta v0, d0, p2-3-2, r0. Palp: PA well developed. Embolus with three keels (PAc, PI and PS). BTA developed, dorsally inserted; Prolateral tegulum with cusps along middle of width of PAc to embolar base; Point of origin of PA between PI and PAc; Embolar base wide ( Fig. 153 A–C). FIGURE 153. Actinopus itacolomi sp. nov. , male: A–C IBSP: 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. Paratype, female: D UFMG 18876: D. Spermathecae, dorsal view. Scales lines: 1 mm. FEMALE (UFMG 18786): Total length 22.5; Carapace, long 8.66; wide 8.33. Carapace anterior part square and posterior part triangular. Anterior eye row procurved, posterior row recurved ( Fig. 151 B ). Many short and long bristles between AME-clypeus, one long bristle between PLE–ALE, many long bristles between posterior eyes-fovea and few short bristles between lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused to each other than others ( Fig. 151 C ). Rastellum protuberant, subquadrate, hirsute, with a row of short spines on the edge of rastellum and o lot of short spines covering the dorsal rastellum ( Fig. 151 E–F). Chelicerae with twelve denticles between prolateral and retrolateral row of teeth. Prolateral row with one basal denticle and five megateeth. Retrolateral row with six megateeth and two teeth between three basal megateeth ( Fig. 151 D ). Patella III with distal crown of thorns and tibiae III with distal developed crown of thorns ( Fig. 152 A–B). Patella IV with prolaterodorsal short spines along extension of article, these spines are more numerous on basal portion ( Fig. 152 C ). Tibia IV without spines and with long bristles on prolaterodorsal surface ( Fig. 152 D ). Carapace and chelicerae brown, chelicerae with one longitudinal row lighter, yellowish brown; sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi, tarsi and palp reddish brown; Abdomen pale brow ( Fig. 151 A ). 13 labial cuspules, 98 on right maxilla and 85 on left. Eyes: Diameters: PME 0.24, PLE 0.36, ALE 0.2, AME 0.4; MOQ: Length 1.32, front width 3.84, back width 3.72; Interdistances: PME–PME 2.36, PLE–PME 0.12, AME–AME 0.36, ALE–AME 1.32, ALE–PLE 0.72, AME–PME 0.96. Ocular area: OAL 6.4, OAW 5.1, and IF 3.25. Body: Clypeus: 0.83; Fovea: 3.66; Labium: long 2; wide 1.68; Chelicerae: long 5.66; wide 3; Sternum: long 5.93; wide 5.87. Abdomen: long 12.33; wide 8.5. Leg measurements: I: Fe 7.5/ Pa 5.5/ Ti 3.5/ Me 4.66/ Ta 2.16/ total 23.33. II: 7.66/ 5.33/ 3.66/ 4.83/ 2.66/ 24.16. III: 7.5/ 6.16/ 2.83/ 5.5/ 2.16/ 24.16. IV: 10/ 6.16/ 6/ 6.33/ 2.66/ 31.16. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v2-4-4, d0, p0-4-3, r6-8-5; Me v3-2-5, d0- 0-4, p5-9-6, r5-12-9; ta v1-4-3, d0, p5-4-2, r5-3-4. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v4-4-3, d0, p0, r11-7-7; Me v3-4-5, d0, p2-6-4, r1-14-6; ta v2-4-7, d0, p6-4-2, r4- 0-2. III—Fe v0, d0, p0, r0; Pa v0, d0-0-35, p0-0-2, r0-1-9; ti v0, d1-0-23, p0-0-3, r0-13-11; Me v0-0-3, d6-9-10, p0, r0; ta v29-16-12, d0-4-5, p3-5-5, r3-7-5; IV—Fe v0, d0, p0, r0; Pa v0, d21-19-7, p0, r0; ti v0, d0, p0, r0; Me v0- 0-3, d0-0-1, p0-1-3, r0; ta v5-8-8, d0-0-3, p2-6-6, r0-0-3. Spermathecae: Represented by two seminal receptacles weakly fused to base, longer than wide, with short duct. Receptacle with one single lobe, with lateral sides longer than internal sides. Pore distribution reaching 50% of length of each receptacle; receptacle bases without pores. Lateral swelling absent ( Fig. 153 D ). FIGURE 154. Actinopus longipalpis C. L. Koch, 1842 , holotype, male:A–C ZMB 2107: A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral. VARIATION FEMALES (n=5): Eyes: Diameters: PME 0.16–0.24, PLE 0.24–0.4, ALE 0.16–0.24, AME 0.28–0.4; MOQ: Length 0.92–1.32, front width 2.72–3.84, back width 2.4– 3.72; Interdistances: PME–PME 1.52 – 2.36 , PLE–PME 0.12–0.2, AME–AME 0.2–0.36, ALE–AME 0.8–0.32, ALE–PLE 0.44–0.72, AME–PME 0.6–0.96. Ocular area : OAL 4.1–9.1, OAW 3.3–7.7, and IF 2–3.5. Body : Total length: 13.3–22.5; Carapace : long 5.6–7.5; wide 4.8–8.33; Clypeus : 0.5–0.83; Fovea : 2.2–3.66; Labium : long 1.3–2; wide 1–1.68; Chelicerae : long 3.12–5.66; wide 1.93–3; Sternum : long 3.62–5.93; wide 3.06–4.68. Abdomen : long 7.5–12.33; wide 5.2–8,5. Leg measurements: I: Fe 3–7.5/ Pa 2–5.5/ Ti 1.33–3.5/ Me 1.66–4.66/ Ta 1–2.16/ total 9–23.33. II : 1.5–7.66/ 1.16–5.33/ 1.33–3.66/ 1.83– 4.83/ 1–2.66/ 6.83–24.16. III : 3–7.5/ 2.5–6.16/ 1–2.83/ 1.83–5.5/ 0.83–2.16/ 9,16–24.16. IV : 4–10/ 2.5–6.16/ 2.33–6/ 2.5–6.33/ 1.16–2.66/ 12.5–31.16. Formula 4123 . Distribution. BRAZIL . Minas Gerais : Ouro Preto, Três Marias, S„o Gonçalo do Rio Preto, Gr„o Mogol, Leme do Prado, Gouveia, Carrancas; Bahia : Chapada Diamantina ( Map 8 ).