Amphidraus belzonte, Ruiz, 2017

Ruiz, Gustavo R. S., 2017, Ten new species of Amphidraus Simon, 1900 (Araneae: Salticidae: Euophryini) and three new combinations, Zootaxa 4312 (3), pp. 401-437 : 412-414

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Amphidraus belzonte

sp. nov.

Amphidraus belzonte sp. nov.

Figs 9–10 View FIGURE 9 View FIGURE 10

Type material. Holotype: ♂ from Estação Ecológica da Universidade Federal de Minas Gerais , 19°52’S, 43°58’W, Belo Horizonte, Minas Gerais, Brazil, VII.1999 – II.2001, E.S.S. Álvares et al. leg. ( IBSP 32545 View Materials ) GoogleMaps . Paratype: 1♂, same data as holotype ( MPEG 32763 View Materials ) GoogleMaps .

Etymology. Noun referring to the type locality (Belo Horizonte), in the way the name of the city is pronounced by some local people.

Diagnosis. A. belzonte sp. nov. differs from all Amphidraus species by the bifid tegular lobe (when seen laterally, Fig. 10 View FIGURE 10 A), the ITA emerging from proximal portion of the tibia ( Figs 10 View FIGURE 10 B, 10C, 10D), the flattening of the embolus in its initial portion, its emerging point in the median portion of the embolic disc ( Fig. 10 View FIGURE 10 C), and the conspicuous distal cavity on the femur, in which the proximal tegular lobe fits when the palp is flexed ( Fig. 10 View FIGURE 10 A). In other Amphidraus species, the ITA emerges from the distal region of the tibia, the emerging point of the embolus is proximal, and the distal cavity of the femur is less conspicuous.

Description. Male holotype ( IBSP 32545). Total length: 2.89. Carapace 1.48 long, 0.95 wide, 0.68 high. Ocular quadrangle 0.72 long. Anterior eye row 1.03 wide, posterior 0.91 wide. Legs: 4312. Length of leg I 2.51 (0.76 + 0.95 + 0.80); II 2.36 (0.76 + 0.84 + 0.76); III 2.97 (0.95 + 0.99 + 1.03); IV 3.28 (1.00 + 1.10 + 1.18). Palp ( Figs 10 View FIGURE 10 A–D): RvTA short and rounded, RTA retrolaterally projected, with tip curved towards ventral side, and ITA retrolaterally projected ( Figs 10 View FIGURE 10 B–D); cymbium with proximal, retrolateral cavity, in which the RTA fits ( Fig. 10 View FIGURE 10 D); embolic disc well developed, with two acute processes, one of them longer, emerging from the distal region of the disc, projected to the prolateral side, and the other shorter, emerging at the middle of distal part of the disc and projected to the retrolateral side ( Fig. 10 View FIGURE 10 C); embolic filament very short, less than a quarter the length of the straight, sclerotized portion ( Fig. 10 View FIGURE 10 C). Color in alcohol: thoracic area brown and cephalic area black; abdomen dorsally brown and variegated; ventrally pale; legs light brown ( Figs 9 View FIGURE 9 A–B).

Female. Unknown.

Distribution. Known only from the type locality ( Brazil, Minas Gerais) ( Fig. 28 View FIGURE 28 ).


Instituto Biologico de Sao Paulo