Dysdera sagartia, Zamani & Marusik & Szűts, 2023

Zamani, Alireza, Marusik, Yuri M. & Szűts, Tamas, 2023, A survey of the spider genus Dysdera Latreille, 1804 (Araneae, Dysderidae) in Iran, with fourteen new species and notes on two fossil genera, ZooKeys 1146, pp. 43-86 : 43

Dysdera sagartia sp. nov.

Figs 18A-F , 19A-D , 20A, B

Type material.

Holotype ♂ (ZMUT), Iran: Tehran Province: Tehran, 35°45'N, 51°24'E, 04.2014 (A. Zamani). Paratypes: 1♂1♀ (ZMUT), Tehran, 35°42'N, 51°25'E, 03.2014 (A.H. Bakhtiari).

Etymology.

The specific epithet is a noun in apposition, referring to an ancient tribe dwelling in the Iranian plateau.

Diagnosis.

The male of this species differs from those of the other species of the Dysdera aculeata group occurring in Iran by the strong dorsal incision between tegulum and psembolus, and the posterior apophysis bent on right angle (vs. no or small incision, and posterior apophysis not bent on right angle); the most similar species is D. mikhailovi Fomichev & Marusik, 2021 from Tajikistan, from which the new species differs by having a dorsal incision between tegulum and psembolus, the parallel dorsal sides of tegulum and psembolus (vs. dorsal margin of psembolus inclined), and smaller retrolateral crest angled at distal 1/3 of psembolus (vs. larger and angled at mid-part). The female of D. sagartia sp. nov. differs from those of its congeners occurring in Iran by having an arched anterior margin of receptacle in combination with a lack of anterior angles (vs. species with arched receptacle have anterior angles), and the almost semiround dorsal arch (vs. trapezoidal).

Description.

Male (Holotype). Habitus as in Fig. 18D-F . Total length 8.38. Carapace 4.29 long, 3.17 wide. Eye diameters: AME 0.18, PME 0.15, PLE 0.15. Carapace, sternum, chelicerae, labium, and maxillae reddish. Legs yellowish orange. Abdomen cream-coloured, without any pattern. Spinnerets uniformly cream-coloured. Measurements of legs: I: 14.51 (3.99, 2.46, 3.61, 3.68, 0.77), II: 12.87 (3.41, 2.02, 3.19, 3.50, 0.75), III: 9.24 (2.75, 1.17, 2.04, 2.47, 0.81), IV: 11.84 (3.51, 1.62, 2.70, 3.13, 0.88). Spination: I: Fe: 3pl. II: Fe: 3pl. III: Fe: 1d, 3pl; Ti: 5pl, 2rl, 5v; Mt: 6pl, 4rl, 2v. IV: Fe: 8d, 1pl, 1rl; Ti: 6pl, 3rl, 7v; Mt: 6pl, 2rl, 5v.

Palp as in Fig. 19A-D ; bulb ca. 2.1 × longer than wide; tegulum bell-shaped, almost as long as wide; psembolus 1.44 × longer than tegulum; median crest rounded, ca. 2.3 × shorter than length of psembolus, ca. 3.1 × wider than high; posterior apophysis broad; incision between tegulum and psembolus present; retrolateral crest bent on obtuse, almost right, angle.

Female. Habitus as in Fig. 18A-C . Total length 11.7. Carapace 3.85 long, 2.91 wide. Eye diameters: AME 0.16, PME 0.14, PLE 0.12. Colouration as in male. Measurements of legs: I: 10.60 (2.87, 1.75, 2.62, 2.73, 0.63), II: 11.38 (3.24, 1.86, 3.04, 2.81, 0.43), III: 8.27 (2.46, 1.27, 1.60, 2.32, 0.62), IV: 10.86 (3.07, 1.50, 2.36, 3.16, 0.77). Spination: I: Fe: 3pl. II: Fe: 3pl. III: Fe: 1d, 1pl; Ti: 6pl, 2rl, 5v; Mt: 2d, 4pl, 2rl, 3v. IV: Fe: 7d; Ti: 2pl, 2rl, 8v; Mt: 2d, 4pl, 5v.

Endogyne as in Fig. 20A, B ; length/width ratio ca. 2; receptacle slightly arched, ca. 4.7 × longer than wide, anterior angles indistinct; dorsal arch semi-oval, its posterior margin 1.5 × longer than anterior; transverse bar 1.5 × longer than receptacle and approximately as wide, slightly arched, lateral edges longer than wide; posterior diverticulum rounded.

Distribution.

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

Figures

Figure 18. Female (A-C) and male (D-F) of Dysdera sagartia sp. nov., habitus A, D dorsal view B, E ventral view C, F lateral view. Scale bars: 1.0 mm.

Figure 19. Male of Dysdera sagartia sp. nov., bulb A retrolateral view B prolateral view C anterior view D posterior view. Scale bars: 0.25 mm.

Figure 20. Female of Dysdera sagartia sp. nov., endogyne A ventral view B dorsal view. Scale bars: 0.25 mm.

Figure 35. Distribution records of Dysdera spp. in Iran 1 D. achaemenes sp. nov. 2 D. bakhtiari sp. nov. 3 D. hormuzensis sp. nov. 4 D. iranica sp. nov. 5 D. isfahanica sp. nov. 6 D. mazeruni sp. nov. 7 D. persica sp. nov. 8 D. pococki 9 D. sagartia sp. nov. and D. medes sp. nov. 10 D. verkana sp. nov. 11 D. xerxesi sp. nov. 12 D. damavandica sp. nov. 13 D. tapuria sp. nov. 14 D. genoensis sp. nov.