Dysdera mazeruni sp. nov.

Figs 13A, B, 14E-G

Dysdera erythrina: Roewer 1955: 752 (in part, misidentification).

Type material.

Holotype ♀ (SMF), Iran: Mazandaran Province: Caspian coast, forest in Chalus, 36°40'N, 51°25'E (F. Starmühlner). Paratype: 1♀ (MMUE), north of Javaher-Deh Vil., ~ 500 m down by elevation down from vil., 36°52'19.2"N, 50°28'01.2"E, 9.06.2000 (Y.M. Marusik).

Etymology.

The specific epithet is a noun in apposition, named after an Iranian language of the northwestern branch spoken by the Mazandarani people.

Diagnosis.

The new species is similar to D. isfahanica sp. nov., but differs by the arched anterior margin of receptacle (vs. almost straight), almost square-shaped dorsal arch (vs. distinctly trapezoidal), and shorter anterior angles (vs. longer, cf. Fig. 14A-D, E-G).

Description.

Female (Holotype). Habitus as in Fig. 13A, B. Total length 8.90. Carapace 4.25 long, 3.37 wide. Eye diameters: AME 0.21, PME 0.19, PLE 0.22. Carapace, sternum, chelicerae, labium, and maxillae orange. Legs yellowish. Abdomen pale beige, without any pattern. Spinnerets uniformly pale beige. Measurements of legs: I: 10.93 (3.48, 2.02, 2.50, 2.25, 0.68), II: 10.00 (2.95, 1.86, 2.31, 2.25, 0.63), III: 7.46 (2.38, 1.08, 1.44, 1.91, 0.65), IV: 9.92 (2.71, 1.50, 2.12, 2.88, 0.71). Spination: I, II: no spines. III: Fe: 1d; Ti: 2pl, 2rl, numerous v spine-like setae; Mt: 2pl, 4rl, 5v. IV: Fe: 2d; Ti: 2pl, 2rl, numerous v spine-like setae; Mt: 3pl, 2rl, 6v.

Endogyne as in Fig. 14E-G; length/width ratio ca. 2.2; receptacle with slightly arched anterior margin, ca. 5 × longer than wide, anterior angles slightly rounded; dorsal arch almost square-shaped, posterior margin 1.2 × longer than anterior margin; transverse bar straight, 1.7 × longer than receptacle; lateral edges broad, wider than receptacle; posterior diverticulum narrowing posteriorly.

Male. Unknown.

Comments.

As for the previous species.

Distribution.

Known only from the listed localities in Mazandaran Province, northern Iran (Fig. 35).