Gnaphosa esyunini, Marusik, Yuri M., Fomichev, Alexander A. & Omelko, Mikhail M., 2014

Marusik, Yuri M., Fomichev, Alexander A. & Omelko, Mikhail M., 2014, A survey of East Palaearctic Gnaphosidae (Araneae). 2. Two new Gnaphosa Latreille, 1804 species from Western Mongolia, ZooKeys 426, pp. 1-9 : 4-6

Taxon classification Animalia Araneae Gnaphosidae

Gnaphosa esyunini sp. n. Figs 7-16

Material.

MONGOLIA, Khovd Aimag: Holotype ♂ (NHMB) and paratypes 2♀ (NHMB) with label "Nr. 666. Chovd aimak: Chovd (Kobdo), ca 5 km SW von der Stadt, 1500 m, 10.VII.1966. - Von kahlen, felsigen Bergen umgegebener Tal mit sandigem Schotter, geeinzelt unter Steinen, vom Boden und zwischen den Pflansenwurzeln, sowie von den Pflanzen"; 1 ♀ (IZCAS), collecting number: mk408, 18.5 km of Monhhairhan Town, Monhhairhan Sum, Khovd Aimag, Mongolia, 47.22783°N, 91.89552°E, 1945 m, 22.07.2011 (Meng Kaibayier).

Note.

Different maps provide different spelling of Monhhairhan, one alternative spelling is Monkh Khayrkhan.

Etymology.

The species is named after our colleague Sergei L. Esyunin from Perm University (Russia), noun.

Diagnosis.

Males of the new species differ from all congeners by the large embolic spine directed prolaterally. Females of Gnaphosa esyunini sp. n. substantially differ from other species by the very wide fovea and the shape and angle of the lateral pockets.

Description.

Male. Total length 14.4. Carapace: 7.3 long, 5.6 wide. Coloration: carapace and legs brown. Labium, maxillae and sternum dark brown. Chelicerae dark brown, almost black. Abdomen grayish-brown. Spinnerets light brown. Spination: I: Fe d1-1-0, p0-0-1; Ti v0-1-1; Mt v0-2-0. II: Fe d1-1-0, p0-1-1; Ti v0-0-1; Mt v0-2-0. III: Fe d1-1-0, p0-1-1, r0-1-1; Pt p1, r1; Ti d1-0-0, p3-1-1, r2-1-1, v2-2-2; Mt d0-2-0, p2-1-0, r1-1-0, v0-3-2. IV: Fe d1-1-0, p0-1-1, r0-1-1; Pt r1; Ti p2-3-3, r3-2-3, v4-1-4; Mt d0-3-0, p3-4-1, r3-1-0, v3-3-3. Leg article length. I: 5.7+3.3+5.25+4.4+2.65. II: 5.3+3.0+4.75+4.4+2.75. III: 4.85+2.5+3.85+5.05+2.65. IV: 6.0+3.0+5.2+7.25+3.05.

Palp as in Figs 7-11; tibial apophysis with parallel margins and triangle-shaped tip; median apophysis relatively large and strong, partly turned due to inflation of distal haematodocha; base of embolus with long spine directed prolaterally and small teeth below the spine; prolateral edge of embolus distinctly serrated.

Female. Total length: 15.5. Carapace: 8.3 long, 6.15 wide. Coloration as in male. Spination: I: Fe d1-1-0, p0-0-1; Ti v0-1-1; Mt v0-2-0. II: Fe d1-1-0, p0-1-1; Ti p0-0-1, v0-1-2; Mt p1-0-0, v0-2-0. III: Fe d1-1-0, p0-1-1, r0-1-1; Pt p1, r1; Ti d2-0-0, p3-1-1, r2-1-1, v2-2-2, Mt d0-2-0, p2-1-0, r2-1-0, v2-0-2. IV: Fe d1-1-0, p0-1-1, r0-1-1; Pt r1; Ti p3-1-1, r2-1-2, v2-3-2; Mt d0-2-0, p2-2-0, r2-1-1, v2-1-2. Leg length. I: 5.9+3.6+4.9+3.95+2.8. II: 5.55+3.35+4.55+4.0+2.8. III: 5.05+2.75+3.8+4.7+2.8. IV: 6.15+3.3+5.3+7.1+3.2.

Epigyne as in Figs 13-16; fovea very wide, especially in posterior half, 2.2 times wider than scape; scape oval, wider than long, with large hood; lateral pockets long, at an angle of about 45° to epigastral fold; glandular part of receptacles stretched horizontally.

Distribution.

Known only from two localities in Khovd Aimag (Fig. 19).