Parasyrisca szinetari, Marusik & Fomichev & Omelko, 2019

Marusik, Yuri M., Fomichev, Alexander A. & Omelko, Mikhail M., 2019, New data on Parasyrisca (Araneae: Gnaphosidae) from Mongolia, Zootaxa 4688 (2), pp. 199-212 : 202

Parasyrisca szinetari sp. n.

Figs 2 e–h, 4d–f, 5j, 6a–d, 9d–f, 10b, 11

Types. Holotype ♂ ( ZMMU) MONGOLIA, Bayan-Ölgii Aimag, Cengel-Khairkhan-Nuruu Mt. Range, Cengel- Khairkhan Mt. (48°38’36”N, 89°10’22”E), moraine, 3300–3400 m, 15.07.2017 (A.A. Fomichev) . Paratypes: 2♀ ( ZMMU) together with the holotype .

Etymology. The specific name is a patronym in honour of our colleague, Csaba Szinetár (Szombathely, Hungary), who recently described new species of Parasyrisca from Central Europe.

Diagnosis. Male of P. szinetari sp. n. differs from similar P. polchaninovae sp. n. by thicker conductor (cf. Figs 4e , 6a and 4b , 6e ) and rectangular embolus composed of 2 parts ( Figs 6 b–d) vs. claw-like embolus ( Figs 5h , 6g, h ). Female of P. szinetari sp. n. differs from sibling P. polchaninovae sp. n. by having wide anchor like posterior pocket of epigyne ( Figs. 9 d–f) vs. thin arch shaped ( Figs 9 a–c) and having very broad receptacles (wider than receptacular ducts).

Description. Male (holotype). Total length 7.75. Carapace 3.1 long, 2.45 wide. Colouration: carapace brown. Sternum, labium, chelicerae and endites dark brown. Palps: Fe–Pt pale yellow, Ti and cymbium dark brown. Legs dirty yellow. Abdomen and spinnerets yellow-gray. Leg spination: I: Fe d2 p1, Ti v4, Mt v2; II: Fe d2 p2, Ti v3, Mt v2; III: Fe d2 p2 r2, Ti p3 r2 v6, Mt d2 p1 r1 v2; IV: Fe d2 p1 r1, Ti p3 r3 v6, Mt d2 p1 r 1 v 2. Leg measurements: I 11.60 (3.00, 1.65, 2.90, 2.40, 1.65); II 9.95 (2.75, 1.50, 2.40, 1.90, 1.40); III 8.90 (2.50, 1.35, 2.05, 1.75, 1.25); 11.95 (3.25, 1.50, 3.00, 2.70, 1.50).

Palp as in Figs 2 e–h, 4d–f, 5j, 6a–d. Tibia with rectangular apophysis bearing teeth in posterior part. Cymbium broad, length less than 2 widths ( Fig. 2f ). Conductor broad, about 2.5 times longer than wide, terminal half bent dorsally; embolus complex composed of flat part (Ef) with longitudinal ridges and thin part (Et), 2 parts fused near visible base of embolus (arrowed on Fig. 6d ). Terminal and median apophyses without modifications.

Female. Total length 9.25. Carapace 4.0 long, 3.3 wide. Colouration: carapace brown. Sternum, labium, chelicerae and endites dark brown. Palps: Fe–Pt pale yellow, Ti–Ta brown. Legs: Fe yellow, Pt–Ta yellow-brown. Abdomen yellow-gray. Spinnerets pale yellow. Leg spination: I: Fe d2 p1, Ti v4, Mt v2; II: Fe d2 p2, Ti v3, Mt v2; III: Fe d2 p2 r2, Ti p3 r2 v5, Mt d2 p1 r2 v2; IV: Fe d2 p1 r1, Ti p3 r3 v5, Mt d2 p1 r 1 v 2. Leg measurement: I 13.35 (3.75, 2.00, 3.25, 2.60, 1.75); II 12.40 (3.50, 1.90, 3.00, 2.35, 1.65); III 9.76 (3.25, 1.75, 2.60, 2.25, 1.65); IV 15.30 (4.25, 2.00, 3.75, 3.40, 1.90).

Epigyne as in Figs 9 d–f. Anterior pocket arch shaped, thinner than posterior pocket over 2 times; posterior pocket subdivided in 2 parts; receptacles broad, almost as wide as anterior pocket, spaced by about 1.5 diameters, anterior parts of receptacles coincides with anterior part of anterior pocket; diameter of receptacular ducts half the diameter of the receptacles, ducts almost as long as receptacles.

Size variation. Females vary from 9.25 to 11.5 in the body length, carapace 4.0–4.5 long, 3.3–3.5 wide (n=2).

Figures

FIGURE 2. Palp of Parasyrisca polchaninovae sp. n. (a–d) and the holotype of P. szinetari sp. n. (e–h). a, e ventral; b, f dorsal; c, g retrolateral; d, h prolateral. Scale = 0.2 mm.

FIGURE 4. Bulb of Parasyrisca polchaninovae sp. n. (a–c), P. szinetari sp. n. (d–f) and P. platnicki sp. n. (g–i). a, d, g ventral; b, e, h prolateral; c, f, i retrolateral. Scale = 0.2 mm. Abbreviations: Co conductor, Em embolus, Ma median apophysis, Te terminal apophysis.

FIGURE 5. Bulb of Parasyrisca khubsugul (a–d), P. polchaninovae sp. n. (h), P. platnicki sp. n. (i) and P. szinetari sp. n. (j) and epigyne of P. khubsugul (e–g). a–c, dorso-prolateral, prolateral and ventral; d, h–j anterior; e–f variation in shape, ventral; g dorsal. Scale = 0.2 mm.

FIGURE 6. Bulb of Parasyrisca szinetari sp. n. (a–d) and P. polchaninovae sp. n. (e–h) and P. platnicki sp. n. (i). a, e prolateral; b, d, f antero-ventral; c, h–i anterior; g embolus and conductor anterior. Scale = 0.1 mm if not otherwise indicated. Abbreviations: Ef flat part of the embolus, Em embolus, Et thin part of the embolus, Co conductor, Ma median apophysis, Te terminal apophysis.

FIGURE 9. Epigynes of Parasyrisca polchaninovae sp. n. (a–c), P. szinetari sp. n. (d–f) and P. platnicki sp. n. (g–j).