Hypaeus terraemediae, Araújo, Magda H. S. & Ruiz, Gustavo R. S., 2015

Araújo, Magda H. S. & Ruiz, Gustavo R. S., 2015, Description of four new species of Hypaeus Simon and redescription of H. taczanowskii Mello-Leitão (Araneae: Salticidae: Amycinae), Zootaxa 3963 (1), pp. 27-44: 40-41

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Hypaeus terraemediae

sp. nov.

Hypaeus terraemediae  sp. nov.

Figs 51 –61, 64– 65View FIGURES 49 – 52View FIGURES 53 – 55View FIGURES 56 – 59View FIGURES 60 – 64View FIGURE 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 44View FIGURES 43 – 48, 55View FIGURES 53 – 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. 54View FIGURES 53 – 55). 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. 59View FIGURES 56 – 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. 56View FIGURES 56 – 59), 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. 51View FIGURES 49 – 52). Chelicera dark brown, with frontal excavation and dilated distally, where there is a small mastidion ( Fig. 52View FIGURES 49 – 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 53–55View FIGURES 53 – 55), distal portion with dent (arrow in Fig. 54View FIGURES 53 – 55). 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. 56View FIGURES 56 – 59); ventrally with wide median longitudinal dark brown stripe. Spinnerets light brown.

Female (paratype, MPEG 21130). Total length: 7.10. Carapace yellow with orange cephalic area and darker posterior part ( Fig. 57View FIGURES 56 – 59), 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. 58View FIGURES 56 – 59). Chelicera yellow with darker proximal and dorsal portions ( Fig. 58View FIGURES 56 – 59), 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. 57View FIGURES 56 – 59). Epigyne with a pair of oblique copulation openings, long digitiform gland ducts and long and stout copulation ducts ( Figs 59 –61, 64View FIGURES 56 – 59View FIGURES 60 – 64). Spinnerets light brown.

Distribution. Known only from the type locality ( Fig. 65View FIGURE 65).


Museu Paraense Emilio Goeldi