Dysdera haykana, Kosyan & Zamani & Marusik, 2023

Kosyan, Armine, Zamani, Alireza & Marusik, Yuri M., 2023, Notes on Dysderidae (Arachnida, Araneae) of Armenia and Iran, with new species and records, ZooKeys 1172, pp. 117-130 : 117

Dysdera haykana sp. nov.

Figs 1A , 2A-D , 3A, B

Type materials.

Holotype ♂ (ZMMU), Armenia: Lori Province: Mets Parni, 40°49'15.4"N, 44°04'33.2"E, 30.04.2022 (A. Kosyan). Paratypes: 1♂ (ZMMU), same data as for the holotype; 1♂ (ZMMU), Kotayk Province: env. of Solak Vill., 40°28'34"N, 44°42'57"E, 14.05.2021 (Y.M. Marusik).

Etymology.

The specific epithet is an adjective referring to Hayk Nahapet (in Armenian: Հայկ), the legendary patriarch and founder of the Armenian nation.

Diagnosis.

The new species belongs to the Dysdera asiatica species-group and is most similar to D. asiatica Nosek, 1905 (see Deeleman-Reinhold and Deeleman 1988: figs 226, 227) and D. ukrainensis Charitonov, 1956 (as illustrated by Charitonov 1956: fig. 16) in possessing a spine-like median process (Mp) (vs either lacking or of a different shape (with 2 or more teeth) in other species). Dysdera haykana sp. nov. can be distinguished from both species by the almost indistinct spine-like outgrowth (So) on the median crest (vs distinct). From D. ukrainensis , it also differs by having median crest (Mc) ca 2.5 times longer than high (vs as long as high), the median process extending the median crest (vs not extending), and the relatively larger posterior apophysis (Pa) (cf. Fig. 2A and Charitonov 1956: fig. 16).

Description.

Male (Holotype). Habitus as in Fig. 1A . Total length 9.22. Carapace 4.16 long, 3.33 wide. Eye sizes: AME 0.22, PME 0.16, PLE 0.19. Carapace and chelicerae dark reddish; carapace slightly lighter posteriorly. Sternum, labium, and maxillae reddish. Legs yellowish orange. Abdomen light beige, without any pattern. Spinnerets uniformly beige. Measurements of legs: I: 11.00 (3.09, 2.11, 2.59, 2.49, 0.72), II: 10.91 (3.13, 1.90, 2.52, 2.69, 0.67), III: 8.23 (2.48, 1.34, 1.52, 2.26, 0.63), IV: 10.85 (3.16, 1.80, 2.23, 2.91, 0.75). Spination: I, II: no spines; III: Ti: 2pl, 1rl, 2v; Mt: 3pl, 3rl, 6v. IV: Fe: 1d; Ti: 2pl, 2rl, 2v; Mt: 2d, 3pl, 3rl, 4v.

Palp as in Figs 2A-D , 3A, B ; bulb 3 times longer than its maximal width; psembolus 1.5 times longer than tegulum; tegulum 1.27 times longer than wide; median crest (Mc) elongate, ca 2.5 times longer than high, with almost indistinct spine-like outgrowth (So), middle part of psembolus with spine-like process (Mp), its tip extending dorsal margin of median crest.

Female. Unknown.

Note.

The record of D. ukrainensis in central Georgia (cf. Otto 2022) may belong to this species. Kovblyuk et al. (2008) redescribed the types of D. ukrainensis , although their figures of the lectotype male differs from those provided in Charitonov (1956) in the shape of the median process. Moreover, according to Kovblyuk et al. (2008), the median process can vary in shape and may be bifurcated on the tip.

Distribution.

Known only from the listed localities in Kotayk and Lori provinces, central and northern Armenia (Fig. 10 ).

Figures

Figure 1. Habitus of the holotype male of Dysdera haykana sp. nov. (A) and the female of D. nakhchivanica (B), dorsal.

Figure 2. Male of Dysdera haykana sp. nov., bulb. A retrolateral B prolateral C dorsal D ventral. Abbreviation: Mc - median crest, Mp - median process, Pa - posterior apophysis, So - spine-like outgrowth. Scale bar: 0.2 mm.

Figure 3. Male of Dysdera haykana sp. nov., bulb. A prolateral B dorso-prolateral. Scale bar: 0.1 mm.

Figure 10. Distribution records of Dysdera haykana sp. nov. (circles), D. nakhchivanica (squares), and Harpactea armenica (triangles). Type localities are marked with red.