Description of four new species of Hypaeus Simon and redescription of H. taczanowskii Mello-Leitão (Araneae: Salticidae: Amycinae) Author Araújo, Magda H. S. Author Ruiz, Gustavo R. S. text Zootaxa 2015 3963 1 27 44 journal article 10.11646/zootaxa.3963.1.2 c216fc8d-6e98-4503-afdc-a3583adc635c 1175-5326 288636 DCB435FD-F703-42B8-9037-9407D709B89C Hypaeus terraemediae sp. nov. Figs 51–61, 64–65 Types . Holotype : male from Parque Nacional da Serra do Pardo ( 5.877806°S , 52.795389°W ), São Félix do Xingu, Pará, Brazil , 27.IV.2012 , G.R.S. Ruiz et al. (MPEG 21129). Paratype : one female, same data as holotype , except for 28.IV.2012 (MPEG 21130). Etymology. The epithet is a genitive latinization of the local term “Terra do Meio”, commonly used to refer to a vast area covered with rain forest between rivers Xingu and Iriri, in the state of Pará, Brazil , which includes the type locality. Diagnosis. Males of H. terraemediae sp. nov. are similar to those of H. miles Simon and H. femoratus sp. nov. for the dilated femora and reduced RTA ( Figs 44 , 55 ). However, they can be distinguished from those of H. femoratus sp. nov. for the stout embolus tip, and from those of H. miles for the shorter projections on palpal tibia and the embolus abruptly tightening close to its tip ( Fig. 54 ). Females of H. terraemediae sp. nov. are similar to those of H. femoratus sp. nov. in having digitiform glands curving from the center of the epigyne to the anterior lateral portions, but can be distinguished for the more oblique copulation openings ( Fig. 59 ) (the female of H. miles is unknown). Hypaeus terraemediae sp. nov. also seems to have an extra loop in the copulation duct. Description. Male ( holotype , MPEG 21129): Total length: 7.40. Carapace dark brown with light brown spot behind fovea ( Fig. 56 ), 3.30 long, 2.55 wide, 1.95 high. Ocular quadrangle 2.00 long. Anterior eye row 2.20 wide, posterior 2.05 wide. Black eyebrow. Sparse white setae among eyes. AME 0.80 in diameter. Clypeus 0.55 high, dark brown ( Fig. 51 ). Chelicera dark brown, with frontal excavation and dilated distally, where there is a small mastidion ( Fig. 52 ); four teeth on promargin and three or four teeth on retromargin. Labium and endite dark brown. Sternum light brown. Palp: femur curved with dorsal bump; tibia with short RTA; embolus emerging from proximal tegulum ( Figs 53–55 ), distal portion with dent (arrow in Fig. 54 ). Legs 1342 (10.60/8.75/8.50/7.45). Coxae and troncanters yellow. Femora yellow with dark distal portion, lighter in posterior legs. Patellae and tibiae dark brown, lighter in posterior legs. Metatarsi and tarsi dark brown, lighter in posterior legs. Length of femur I 3.10, II 2.30, III 3.00, IV 2.70. Patella + tibia I 4.40, II 2.95, III 3.00, IV 2.90. Metatarsus + tarsus I 3.10, II 2.20, III 2.75, IV 2.90. Abdomen pale with dorsal light brown pattern ( Fig. 56 ); ventrally with wide median longitudinal dark brown stripe. Spinnerets light brown. FIGURES 53–55. Hypaeus terraemediae sp. nov. 53. left male palp (MPEG 21129), prolateral view; 54. same, ventral view (arrow shows diagnostic embolus); 55. same, retrolateral view (RTA: retrolateral tibial apophysis). Female ( paratype , MPEG 21130). Total length: 7.10. Carapace yellow with orange cephalic area and darker posterior part ( Fig. 57 ), 3.25 log, 2.40 wide, 1.70 high. Ocular quadrangle 1.80 long. Anterior eye row 2.15 wide, posterior 1.90 wide. No eyebrow. Sparse white setae among eyes. AME 0.80 in diameter. Clypeus 0.30 high, yellow with marginal dark brown stripe ( Fig. 58 ). Chelicera yellow with darker proximal and dorsal portions ( Fig. 58 ), no mastidion, and three teeth on both promargin and retromargin. Labium and endite light brown. Sternum yellow. Legs 4132 (7.65/7.40/7.15/6.20). Coxae and trochanters yellow. Femora yellow, distally dark. Patellae and tibiae yellow with dark joints. Metatarsus and tarsus yellow with dark joints. Length of femur I 2.30, II 2.00, III 2.20, IV 2.55. Patella + tibia I 3.10, II 2.50, III 2.60, IV 2.60. Metatarsus + tarsus I 2.00, II 1.70, III 2.35, IV 2.50. Abdomen as in male, with stronger dark pattern ( Fig. 57 ). Epigyne with a pair of oblique copulation openings, long digitiform gland ducts and long and stout copulation ducts ( Figs 59–61, 64 ). Spinnerets light brown. Distribution. Known only from the type locality ( Fig. 65 ).