Dysdera bakhtiari sp. nov.

Figs 3, 4A-D

Type material.

Holotype ♂ (MHNG), Iran: Chaharmahal & Bakhtiari Province: Zard Kuh, 32°23'N, 50°07'E, 2700 m, 20.06.1974 (A. Senglet).

Etymology.

The specific epithet is a noun in apposition, referring to an Iranian tribe primarily inhabiting Chaharmahal & Bakhtiari, Khuzestan, Lorestan, Bushehr, and Isfahan provinces.

Diagnosis.

This species can be distinguished from other species of the Dysdera aculeata group occurring in the region by having a wider psembolus (i.e., 1.5 × wider than the tegulum).

Description.

Male. Habitus as in Fig. 3. Total length 5.97. Carapace 2.55 long, 1.97 wide. Eye diameters: AME 0.10, PME 0.08, PLE 0.11. Carapace, sternum, chelicerae, labium, and maxillae reddish brown. Legs orange. Abdomen cream-coloured, without any pattern. Spinnerets uniformly cream-coloured. Measurements of legs: I: 7.40 (2.07, 1.26, 1.80, 1.82, 0.45), II: 6.68 (1.83, 1.17, 1.61, 1.61, 0.46), III: 5.02 (1.42, 0.81, 0.98, 1.40, 0.41), IV: 6.51 (1.87, 0.97, 1.43, 1.77, 0.47). Spination: I: Fe: 4pl. II: Fe: 3pl. III: Fe: 3pl, 1rl; Ti: 4pl, 2rl, 5v; Mt: 6pl, 2rl, 2v. IV: Fe: 7d, 1pl; Ti: 5pl, 2rl, 5v; Mt: 5pl, 2rl, 5v.

Palp as in Fig. 4A-D; bulb ca. 2 × longer than wide; tegulum bell-shaped, 1.2 × longer than wide; psembolus 1.5 × longer than tegulum; median crest (Mc) rounded, ca. 2.2 × shorter than length of psembolus, ca. 4 × wider than high; posterior apophysis (Ap) very large, rounded; incision between tegulum and psembolus absent; retrolateral crest (Rc) gradually rounded.

Female. Unknown.

Distribution.

Known only from the type locality in Chaharmahal & Bakhtiari Province, southwestern Iran (Fig. 35).