Xiruana Brescovit, 1997

Xiruana Brescovit, 1997: 102 (type species by original designation: Aysha gracilipes Keyserling, 1891).

Diagnosis. Xiruana differs from other Anyphaeninae genera by a combination of the following characters: tracheal spiracle close to the epigastric furrow (Figs 1 B, D), male palp with bifid retrolateral tibial apophysis (Figs 2 E, F), conductor of Anyphaeninae furrowed longitudinally (Figs 2 A, B); female epigynum with large median septum, with lateral borders strongly concave and sclerotized (Fig. 2 G).

Description. See description in Brescovit (1997: 102–104). The following characters are included: carapace sub-rectangular and enlarged near coxae III–IV, with short thoracic furrow (Figs 1 A, C). Chelicerae slightly projected, approximately half-the length of the carapace, basal condyle conspicuous, with 3–5 promarginal teeth and 4–5 retromarginal denticles (Fig. 4 A). One row of trichobothria (Figs 4 C, D) on metatarsi I–IV and two rows on tarsi I–IV. Paired tarsal claws with 6–7 teeth (Figs 4 E, F). Male palp: patellar apophysis short and rounded (Figs 2 D–F); median tibial apophysis short and usually triangular (Figs 2 D–F); tibia with retrolateral tibial apophysis bifid distally, with anterior branch narrow and long and posterior branch short and conical (Figs 2 D–F); conductor of Anyphaeninae with or without retrolateral keel and with longitudinal furrow (Figs 2 A, B; 3A, B); ventral tegular process short and hyaline (Figs 2 A, B). Female epigynum: epigynal plate with anterior border usually shorter than posterior border (Fig. 2 G).