Dysdera achaemenes, 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 achaemenes sp. nov.

Figs 1A-C , 2A, B

Type material.

Holotype ♀ (ZMUT), Iran: Fars Province: Khanj, Khan Cave, 27°44'N, 53°20'E.

Etymology.

The specific epithet is a noun in apposition, referring to the apical ancestor of the Achaemenid dynasty of rulers of Persia.

Diagnosis.

The new species differs from its congeners occurring in the region by the very long receptacle (Re), longer than the posterior margin of the dorsal arch (Da) (vs. shorter).

Description.

Female. Habitus as in Fig. 1A-C . Total length 8.13. Carapace 3.28 long, 2.58 wide. Eye diameters: AME 0.12, PME 0.12, PLE 0.14. Carapace, sternum, chelicerae, labium, and maxillae reddish. Legs pale orange. Abdomen pale cream-coloured, without any pattern. Spinnerets uniformly pale cream-coloured. Measurements of legs: I: 8.77 (2.64, 1.56, 2.21, 1.78, 0.58), II: 8.49 (2.42, 1.44, 2.02, 2.08, 0.53), III: 6.54 (1.87, 0.99, 1.30, 1.92, 0.46), IV: 8.99 (2.51, 1.32, 2.07, 2.47, 0.62). Spination: I: Fe: 3pl. II: Fe: 1pl. III: Fe: 1pl; Ti: 4pl, 1rl, 6v; Mt: 3pl, 2rl, 6v. IV: Fe: 9d, 1rl; Ti: 4pl, 6v; Mt: 3pl, 2rl, 5v.

Endogyne as in Fig. 2A, B ; length/width ratio ca. 2.6; receptacle slightly arched, 5 × longer than wide, anterior angles (Aa) rounded, not long; dorsal arch (Da) trapezoidal; transverse bar (Tb) as wide as receptacle, lateral edges (Le) directed posterolaterally; posterior diverticulum (Pd) hexagonal.

Male. Unknown.

Distribution.

Known only from the type locality in Fars Province, southern Iran (Fig. 35 ).

Figures

Figure 1. Female of Dysdera achaemenes sp. nov., habitus. A dorsal view B ventral view C lateral view. Scale bars: 1.0 mm.

Figure 2. Female of Dysdera achaemenes sp. nov., endogyne. A ventral view B dorsal view. Scale bars: 0.25 mm. Abbreviations: Aa - anterior angle, Da - dorsal arch, Le - lateral edge, Pd - posterior diverticulum, Re - receptacle, Tb - transverse bar.

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.