Amphidraus araripe,

Salgado, Alexandre & Ruiz, Gustavo R. S., 2019, Seven new species of Amphidraus Simon, 1900 (Araneae: Salticidae: Euophryini), Zootaxa 4563 (3), pp. 451-481: 460-465

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Amphidraus araripe

sp. nov.

Amphidraus araripe  sp. nov.

Figs 11–14View FIGURE 11View FIGURE 12View FIGURE 13View FIGURE 14

Type material. Holotype: ƋGoogleMaps  from Floresta Nacional do Araripe-Apodi   GoogleMaps, 7°18'39.6"S, 39°26'49.2"W, Crato, Ceará, Brazil, 06.II.2011, L.S. Carvalho et al. leg. ( MPEG 35011View Materials); Paratypes: 1 Ƌ and 1♀ from Parque Nacional de Ubajara , Trilha da Samambaia, 3°50'19.4"S, 40°53'58.6"W, Ubajara, Ceará, Brazil, 14.V.2013, L.S. Carvalho et al. leg. ( UFMG 14887View Materials)GoogleMaps  .

Etymology. The specific epithet is a noun in apposition taken from the locality of the holotype.

Diagnosis. Among all species of Amphidraus  , A. araripe  sp. nov. is most similar to A. pulvinus Salgado & Ruiz, 2017  by having the tegulum with small retrolateral spermophore loop (RSPL) ( Figs 11DView FIGURE 11, 13BView FIGURE 13; see Salgado & Ruiz 2017: fig. 8C) and the same tibial apophysis pattern: the retroventral tibial apophysis (RvTA) and intercalary tibial apophysis (ITA) are short and blade-shaped (the ITA with an internal basal projection; black arrow in Fig. 11EView FIGURE 11; see also Salgado & Ruiz 2017: fig. 8D) and the RTA is linked to an inflated membrane ( Figs 11View FIGURE 11 E–G, 13B–C; see Salgado & Ruiz: figs 8B, 8D). These species also have an embolic disc with a distal process projected to prolateral side and a ventral process projected to retrolateral side ( Figs 11CView FIGURE 11, 13AView FIGURE 13; see Salgado & Ruiz 2017: fig. 8C). However, A. araripe  sp. nov. can be distinguished by having the RvTA and ITA more separated from each other ( Figs 11FView FIGURE 11, 13BView FIGURE 13), whereas these are almost fused in A. pulvinus  (see Salgado & Ruiz 2017: fig. 8D). In addition, A. araripe  sp. nov. has a vPED placed near the distal processes ( Figs 11CView FIGURE 11, 13AView FIGURE 13), whereas in A. pulvinus  the vPED is placed on the prolateral border of embolic disc (see Salgado & Ruiz 2017: fig. 8C). The female of A. pulvinus  is unknown, but among the Amphidraus  species currently known, the epigyne of A. araripe  sp. nov. is most similar to that of A. manaura  sp. nov., both with glands near copulatory openings and with epigynal plate with border slightly bilobed ( Figs 12CView FIGURE 12, 13DView FIGURE 13, 16DView FIGURE 16, 17DView FIGURE 17). However, the female of A. araripe  sp. nov. differs by having a longer copulatory duct (with one loop ventrally projected) and by having the less expanded border of epigynal plate ( Figs 13DView FIGURE 13, 17DView FIGURE 17).

Description. Male holotype (MPEG 35011). Total length: 2.73. Carapace 1.32 long, 0.88 wide and 0.65 high. Ocular quadrangle 0.54 long. Anterior eye row 0.93 wide, posterior 0.81 wide. Legs 4312. Length of leg: I 2.09 (0.63 + 0.77 + 0.69); II 2.04 (0.62 + 0.70 + 0.72); III 2.50 (0.75 + 0.82 + 0.93); IV 2.78 (0.79 + 0.94 + 1.05). Palp ( Figs 11View FIGURE 11 C–G, 13A–C): femur and patella without modifications; cymbium oval ( Fig. 13CView FIGURE 13); tegulum with thick lobe curved to prolateral side ( Figs 11CView FIGURE 11, 13AView FIGURE 13); embolus shaft (e) strongly arched to prolateral side, with tip retrolaterally projected ( Fig. 13AView FIGURE 13); embolic filament (ef) short, with nearly half the length of embolus shaft ( Fig. 13AView FIGURE 13). Color in alcohol ( Figs 11View FIGURE 11 A–B): cephalic area black; thoracic area brown with pale longitudinal stripe; abdomen dorsally variegated with brown, and with a pale longitudinal stripe bearing white setae; ventrally pale with posterior portion dark; legs pale.

Description. Female paratype (UFMG 14887). Total length: 2.95. Carapace 1.40 long, 0.97 wide and 0.67 high. Ocular quadrangle 0.68 long. Anterior eye row 1.02 wide, posterior 0.90 wide. Legs 4312. Length of leg: I 2.18 (0.71 + 0.82 + 0.65); II 2.06 (0.66 + 0.76 + 0.64); III 2.50 (0.79 + 0.86 + 0.85); IV 2.88 (0.81+ 0.99 + 1.08). Epigyne/vulva ( Figs 12View FIGURE 12 C–D, 13D: copulatory openings separated by about two diameters of copulatory duct; spermathecae kidney-shaped; fertilization ducts anteriorly placed and laterally projected. Color in alcohol ( Figs 12View FIGURE 12 A–B): cephalic area black; thoracic area dark brown with a longitudinal light brown stripe; abdomen dorsally black with longitudinal interrupted pale stripe; ventrally pale; femora pale with black spots; other leg segments light brown with black spots.

Distribution. Known only from the type locality (state of Ceará, Brazil) ( Fig. 14View FIGURE 14).