Tylogonus yanayacu, Zhang, Jun-Xia & Maddison, Wayne P., 2012

Zhang, Jun-Xia & Maddison, Wayne P., 2012, New euophryine jumping spiders from Central and South America (Araneae: Salticidae: Euophryinae), Zootaxa 3578, pp. 1-35 : 32-34

Tylogonus yanayacu sp. nov.

Figs 118–127

Type material. Holotype: male, ECUADOR: Napo: Caucheras, Estación Yanayacu , 0.6049° S, 77.8886° W, elev. 2150 m, 20 July 2004, coll. Maddison, Agnarsson, Iturralde, Salazar, Avilés, WPM#04–052 (UBC-SEM AR00166, QCAZ). Paratypes: 1 female, same data as holotype (UBC-SEM AR00167); 1 male, same data as holotype.

Etymology. The specific name refers to the type locality.

Diagnosis. Similar in male cheliceral shape to Tylogonus auricapillus Simon (see Galiano 1960), but differs in the shorter embolus, the shape of the embolic division and the retrolateral tibial apophysis of the male palp ( Figs 120–121 ). This species differs from T. viridimicans (Simon) (see Galiano 1963) by the shorter embolus and the presence of a dorsal branch on the retrolateral tibial apophysis of the male palp ( Figs 120–121 ).

Description. Male (holotype, UBC-SEM AR00166). Carapace length 1.6 (variation 1.6–1.8, n=2); abdomen length 1.7. Chelicera ( Figs 122–123 ): pale yellow; front surface with a long spur. Palp ( Figs 120–121 ): pale yellow. Proximal tegular lobe absent; embolic haemotodocha reduced; embolus short and dagger-like, with a wide ridged apophysis near its base; retrolateral tibial apophysis branched with the ventral branch thick and further forked, and the dorsal one thin and finger-like. First tibia with nine ventral macrosetae, 4–5 aligned; first metatarsus with two pairs of ventral macrosetae. Measurements of legs: I 3.4, II 3.2, III 3.5, IV 3.7. Color in alcohol ( Fig. 118 ): carapace brown, with a white stripe at each side of eye area composed of white setae extending obliquely almost to posterior end of carapace; abdomen brown with white anterior margin and two pairs of lateral white patches; legs pale yellow. The male paratype specimen paler in color than the male holotype.

Female (paratype, UBC-SEM AR00167). Carapace length 1.5; abdomen length 2.2. First tibia with three pairs of ventral macrosetae; metatarsus with two pairs. Measurements of legs: I 3.2, II 2.8, III 3.2, IV 3.4. Epigynum ( Fig. 126 ): with two large depressions posteriorly. Vulva ( Fig. 127 ): copulatory duct thin and short; spermatheca almost kidney-shaped. Color in alcohol ( Fig. 119 ): paler than that of male, carapace yellowish brown, white markings absent; abdomen brownish, without white anterior margin or white patches.

Natural history. Specimens were found by beating foliage in a cloud forest.

Figures

FIGURES 118 – 127. Tylogonus yanayacu sp. nov. 118 male holotype, dorsal view; 119 female paratype, dorsal view; 120 male left palp, ventral view; 121 male left palp, retrolateral view; 122 male right chelicera, front view; 123 male right chelicera, back view; 124 female carapace; dorsal view; 125 female right chelicera, back view; 126. epigynum, ventral view; 127 cleared epigynum, dorsal view. Scale bars: 118 – 119, 0.5 mm; 120 – 127, 0.2 mm.