Revision of the acutidens group of Mago (Araneae: Salticidae: Amycinae) Author Patello, Thyago J. C. Author Ruiz, Gustavo R. S. text Zootaxa 2014 3786 4 443 457 journal article 45997 10.11646/zootaxa.3786.4.3 a49ede07-03df-4174-99f6-47843af3fe76 1175-5326 250259 5FAA040D-61E6-4ED2-886A-19AD03E0FCB8 Mago similis sp. nov. Figs 37–39 , 46 Holotype : male from Sítio Barroso, Juruti, Pará, Brazil ( 2.461583°S 56.003222°W ), 06.VI.2007 , N.F. Lo-Man- Hung ( MPEG 20953). Paratypes : one male and one female with same data, except for 12.VIII.2008 , L.T. Miglio ( MPEG 20937); one female with same data, except for 11.II.2007 , J.A.P. Barreiros ( MPEG 20952); one female with same data, except for ( 2.464278°S 56.002389°W ), 12.VIII.2008 , L.T. Miglio ( MPEG 20977). FIGURES 23–29. Mago spp. 23. male lectotype of M. acutidens , palp, ventral view; 24. same, retrolateral view; 25. female, epigynal plate, ventral view; 26. same, dissected and cleared, dorsal view; 27. male holotype of M. jurutiensis sp. nov. , palp, ventral view; 28. female, epigynal plate, ventral view; 29. same, dissected and cleared, dorsal view. Scale bar (23–24, 27) = 0.5 mm; (25–26, 28–29) = 0.25 mm. FIGURES 30–36. Mago spp. 30. male holotype of M. delicatus sp. nov. , palp, ventral view; 31. same, retrolateral view; 32. female, epigynal plate, ventral view; 33. same, dissected and cleared, dorsal view; 34. male holotype of M. balbina sp. nov. , palp, ventral view; 35. female, epigynal plate, ventral view; 36. same, dissected and cleared, dorsal view. Scale bar (30–31, 34) = 0.5 mm; (32–33, 35–36) = 0.25 mm. FIGURES 37–43. Mago spp. 37. male holotype of M. similis sp. nov. , palp, ventral view; 38. female, epigynal plate, ventral view; 39. same, dissected and cleared, dorsal view; 40. male holotype of M. longidens , palp, ventral view; 41. same, chelicera, anterior view; 42. female, epigynal plate, ventral view; 43. same, dissected and cleared, dorsal view. Scale bar (37, 40) = 0.5 mm; (38–39, 41–43) = 0.25 mm. FIGURE 44. Distribution records for Mago acutidens (red squares) and M. jurutiensis sp. nov. (orange circles). FIGURE 45. Distribution records for Mago delicatus sp. nov. (red squares) and M. balbina sp. nov. (orange circles). Etymology. The epithet is a Latin adjective and refers to the similarity of the male palp with those of other species of the group, causing the late recognition of this species. Diagnosis. This species is similar to M. delicatus sp. nov. and M. balbina sp. nov. by having an acute median projection only on the prolateral side of the embolus, but can be recognized by the embolus tip, more robust and curved distally ( Fig. 37 ). Females of this species differ from the others within the acutidens group by the round copulation openings near the posterior border of the epigynal plate ( Figs 38–39 ). Description. Male ( holotype ). Total length: 6.27. Carapace 3.32 long, 2.28 wide, 1.90 high. Length of ocular quadrangle: 1.71; anterior eye row 2.09 wide, posterior 1.80 wide. Legs 1342. Length of femur I: 2.18; II: 1.90; III: 2.47; IV: 2.09; patella+tibia I: 3.04; II: 2.09; III: 2.47; IV: 2.18; metatarsus+tarsus I: 1.99; II: 1.71; III: 2.09; IV: 2.18. Female ( paratype MPEG 20977). Total length: 6.65. Carapace 3.42 long, 2.47 wide, 1.80 high. Length of ocular quadrangle: 1.90; anterior eye row 2.37 wide, posterior 2.18 wide. Legs 3412. Length of femur I: 1.80; II: 1.90; III: 2.56; IV: 2.18; patella+tibia I: 2.37; II: 2.18; III: 2.47; IV: 2.37; metatarsus+tarsus I: 1.61; II:1.52; III: 2.09; IV: 2.18. Variation. Males (n=9). Total length: 5.89–7.41; length of carapace: 3.13–3.80; length of leg I: 7.12–9.40. Additional material examined. BRAZIL , Pará : Juruti (Base Capiranga, 2.383333°S 56.333333°W ), 1m , 14.IV.2006 , B.V.B, Rodrigues ( MPEG 20926); (Sítio Barroso, 2.464278°S 56.002389°W ), 2m , 24.V.2009 , N. Abrahim & N.C. Bastos, ( MPEG 20936, 20943); 1m , 0 3.III.2006 , D.R. Santos-Souza ( MPEG 20951); ( 2.461583°S 56.003222°W ), 2m , 07.VI.2007 , N.F. Lo-Man-Hung ( MPEG 20954); (Sítio 3 Irmãos, 2.462639°S 56.014167°W ), 1m , 12.VIII.2008 , N.F. Lo-Man-Hung ( MPEG 20928); (Linha 168E, 2.472806°S 56.208167°W ), 1m , 20.V.2009 , N. Abrahim ( MPEG 20956). Distribution. Known only from the type locality, in the state of Pará ( Brazil ) ( Fig. 46 ).