Dysdera medes, 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

publication ID	https://dx.doi.org/10.3897/zookeys.1146.97517
publication LSID	lsid:zoobank.org:pub:01E76F6A-B991-4F33-9BD6-991090F07E80
persistent identifier	https://treatment.plazi.org/id/ED370972-D544-4411-A52E-4599D12E3850
taxon LSID	lsid:zoobank.org:act:ED370972-D544-4411-A52E-4599D12E3850
treatment provided by	ZooKeys by Pensoft
scientific name	Dysdera medes
status	sp. nov.

Treatment

Dysdera medes sp. nov.

Figs 27A-C View Figure 27 , 28A-D View Figure 28

Type material.

Holotype ♂ (ZMUT), Iran: Tehran Province: Tehran, 35°43'N, 51°24'E, 1994 (A. Savoji).

Etymology.

The specific epithet is a noun in apposition, referring to an ancient Iranian people who inhabited an area known as Media between western and northern Iran.

Diagnosis.

The male of the new species is similar to that of D. granulata Kulczyński, 1897 from Italy and the Balkan Peninsula, but differs by the shape of the tegulum (i.e., almost as wide as long, vs. 1.5 × longer than wide), and by thinner psembolus (as wide as tegulum, vs. wider than tegulum). The male of D. medes sp. nov. differs from those of its congeners occurring in Iran by the very long median crest (i.e., longer than half of psembolus, vs. shorter), abrupt tip of psembolus in ventral and dorsal views (Fig. 28C, D View Figure 28 ) (vs. not abrupt), and posterior apophysis with two teeth (vs. one).

Description.

Male. Habitus as in Fig. 27A-C View Figure 27 . Total length 10.0. Carapace 4.19 long, 3.17 wide. Eye diameters: AME 0.14, PME 0.14, PLE 0.14. Carapace, sternum, chelicerae, labium, and maxillae reddish brown. Legs orange. Abdomen greyish, without any pattern. Spinnerets uniformly dark yellowish. Measurements of legs: I: 12.33 (3.54, 2.03, 2.89, 3.00, 0.87), II: 13.50 (3.80, 2.40, 3.12, 3.29, 0.89), III: 9.99 (2.95, 1.59, 1.86, 2.69, 0.90), IV: 12.31 (3.73, 1.80, 2.46, 3.30, 1.02). Spination: I, II: no spines. III: Ti: 4pl, 2rl, 5v; Mt: 6pl, 3rl, 2v. IV: Fe: 7d; Ti: 7pl, 4rl, 8v; Mt: 7pl, 3rl, 4v.

Palp as in Fig. 28A-D View Figure 28 ; bulb ca. 2.8 × longer than wide; tegulum bell-shaped, almost as long as wide; psembolus 1.9 × longer than tegulum; median crest rounded, ca. 2.42 × shorter than length of psembolus, ca. 5.3 × wider than high; posterior apophysis claw-shaped, with 2 teeth (Fig. 28B, D View Figure 28 ); incision between tegulum and psembolus absent; retrolateral crest almost straight.

Female. Unknown.

Distribution.

Known only from the type locality in Tehran Province, northern Iran (Fig. 35 View Figure 35 ).