Mago pardo, Ruiz, 2017

Ruiz, Gustavo R. S., 2017, On four new species of the jumping spider genus Mago O. Pickard-Cambridge, 1882 from South America (Araneae: Salticidae), Zootaxa 4329 (6), pp. 584-593 : 589

Mago pardo sp. nov.

Figs 14–17 , 20–23, 26

Type material. Holotype: male from Parque Nacional da Serra do Pardo , São Félix do Xingu, Pará, Brazil (5.877806°S 52.795389°W), 28.IV.2012, G.R.S. Ruiz et al. leg. ( MPEG 34321 ) . Paratype: female, same data as holotype ( MPEG 34322 ) .

Etymology. The epithet, a noun in apposition, is taken from the name of the park where the type specimens were collected.

Diagnosis. This species seems closely related to Mago saperda Simon, 1900 and Mago procax Simon, 1900 for having an entire tegulum (with no membranous cleft, as seen in most species of the genus; see Patello & Ruiz 2014: fig. 23). However, both M. saperda and M. procax have rounded tegulum and RTA with acute tip (see Galiano 1963: pl. 26, figs 11–12; pl. 27, figs 7–8), while M. pardo sp. nov. has an elongated tegulum (Fig. 20) and RTA with rounded tip (Fig. 21). Details of the male palp of Mago chickeringi ( Caporiacco, 1954) are still needed, but M. chickering has a RTA curved dorsally (see Caporiacco 1954: fig. 50a), while M. pardo has a RTA curved ventrally (Fig. 21). The epigyne of M. pardo is similar to that of Mago steindachneri (Taczanowski, 1878) (see Galiano 1968: fig. 59) for having copulatory openings far from the epigynal border, but can be distinguished for having a pair of separate copulatory openings (Fig. 22), as opposed to fused into an atrium, as in M. steindachneri .

Description. Male (holotype). Total length: 5.41. Carapace orange with a trapezoid brown marking in front of fovea ( Fig. 14 ); 3.25 long, 2.26 wide, 2.19 high. Length of ocular quadrangle: 1.50; anterior eye row 2.10 wide, posterior 1.90 wide. No eyebrow or clypeal tuft ( Figs 14–15 ). Chelicera orange, with no mastidion, but frontal surface flattened, with keel along border; slightly expanded laterally; two promarginal teeth, a line of four minute subpromarginal teeth, not overlapping prolateral teeth, and three fused (basal) and two separate retrolateral teeth; fang unmodified. Palp yellow ( Figs 14–15 ); hooked RTA (Fig. 21); thin embolus arising at about 10 o’clock in the left palp (Fig. 20); subtegulum projected from beneath tegulum to retrolateral border of bulb (Fig. 21). Sternum pale. All legs yellow, with brown rings on distal femora, patellae, tibiae and metatarsi ( Fig. 15 ). Leg formula: 1432. Length of femur I: 2.08; II: 1.65; III: 2.07; IV: 2.21; patella + tibia I: 2.89; II: 2.25; III: 2.14; IV: 2.13; metatarsus + tarsus I: 2.08; II: 1.57; III: 1.80; IV: 1.95. Abdomen pale with two dorsal longitudinal interrupted black lines ( Fig. 14 ); ventrally with three longitudinal black lines converging at middle ( Fig. 15 ). Spinnerets brown.

Female (paratype). Total length: 7.75. Carapace as in male ( Fig. 16 ); 3.46 long, 2.47 wide, 1.79 high. Length of ocular quadrangle: 1.60; anterior eye row 2.26 wide, posterior 2.03 wide. Chelicera yellow, with two promarginal, seven subpromarginal and five retrolateral teeth, prolateral and subpromarginal not overlapping. Palp yellow. Sternum pale. All legs yellow ( Fig. 17 ). Leg formula: 3412. Length of femur I: 2.01; II: 1.83; III: 2.62; IV: 2.79; patella + tibia I: 2.59; II: 2.20; III: 2.56; IV: 2.12; metatarsus + tarsus I: 1.58; II: 1.52; III: 2.03; IV: 2.17. Abdomen as in male ( Figs 16–17 ). Epigyne with long and straight copulatory ducts and small, posteriorly placed spermathecae (Figs 22–23). Spinnerets brown.

Distribution. Known only from the type locality ( Fig. 26 ).

Figures

FIGURE 26. Collection records of Mago spp described herein: yellow circle: M. furcatus sp. nov.; red circle: M. mimicus sp. nov.; cyan circles: M. apophysis sp. nov.; purple circle: M. pardo sp. nov.

FIGURES 14 – 17. Mago pardo sp. nov.: 14 male holotype, dorsal view; 15 same, ventral view; 16 female paratype, dorsal view; 17 same, ventral view.