Takeoa nishimurai ( Yaginuma, 1963 )

Fomichev, A. A. & Omelko, M. M., 2024, NEW FOR THE ASIAN PART OF RUSSIA TAXA OF SPIDERS (ARACHNIDA: ARANEI), Far Eastern Entomologist 502, pp. 12-20 : 16-17

Takeoa nishimurai ( Yaginuma, 1963)

Figs 6–12

Zoropsis nishimurai Yaginuma, 1963: 1 , 3, pl. I, pl. III, f. 1–12 (♂ ♀).

Takeoa nishimurai Lehtinen, 1967: 266 , f. 403, 405; Ono, 2009: 141, f. 1–6; Kim, 2021: 184, f. 80A–I, pl. 38.

MATERIAL EXAMINED. Russia: Primorsky krai, Krounovka River valley , 43°39.342’N, 131°33.853’E, rocks and screes in oak forest, 200 m, 10.VII 2022, 1♀ ( ISEA, 001.9082), 1♀ ( ISEA, 001.9083) A.A. Fomichev .

DIAGNOSIS. The female of Takeoa nishimurai differs from that of all known species of Zoropsis , the only other East Palaearctic genus of Zoropsidae , by short scape (Sc) not reaching epigastral furrow (vs. long scape, reaching epigastral furrow) and by converging receptacles (Re) with almost touching heads (RH) (diverging or parallel receptacles with widely separated heads) (cf. Figs 8–10 vs. Marusik & Kovblyuk, 2004: figs 5–6). The male of T. nishimurai can be distinguished from that of Zoropsis by wide retrolateral tibial apophysis with blunt tip (vs. narrow, sharply pointed retrolateral tibial apophysis), triangular retrolateral marginal bump of cymbium (vs. elliptical) and by triangular bulging proximal part of tegulum (vs. circular; cf. Bosselaers, 2002: fig. 1A–B and Griswold & Ubick, 2001: figs 2, 5). Additionally, the male of T. nishimurai differs from that of T. huangshan Tang, Xu et Zhu, 2004 by non-bifurcated distal part of embolus (vs. bifurcated; cf. Bosselaers, 2002: fig. 1A and Tang et al., 2004: fig. 4). The female of T. huangshan is unknown.

REDESCRIPTION. Female. Total length 12.3. Carapace: 5.9 long, 4.5 wide. Abdomen: 7.4 long, 4.2 wide. Coloration. Carapace yellow brown with yellow median band. Chelicerae, labium and endites dark brown, almost black. Sternum and coxae yellow. Palps: Fe–Pa yellow, Ti–Ta brown. Legs: Fe–Pa dirty yellow with gray spots, Ti–Ta brown, darker distally. Abdomen dirty yellow with gray spots. Spinnerets yellow gray. Eye sizes and interdistances: AME 0.21, ALE 0.3, PME 0.3, PLE 0.27; AME–AME 0.24, AME–ALE 0.13, PME–PME 0.19, PME–PLE 0.49, MOA long 0.73, MOA front width 0.64, MOA back width 0.76. Clypeus height at AME 0.21. Chelicerae with 3 promarginal and 3 retromarginal teeth. Legs and palp measurements: Palp: 5.8 (1.95, 1.0, 1.1, -, 1.75); I: 17.25 (4.8, 2.3, 4.9, 4.05, 1.2); II: 14.95 (4.25, 2.15, 3.95, 3.5, 1.1); III: 12.15 (3.6, 1.75, 2.8, 2.9, 1.1); IV: 16.7 (4.75, 1.95, 4.05, 4.6, 1.35). Legs and palp spination: Palp: Fe d3; Pa p1; Ti d2 p3; Ta p2. I: Fe d3 p3 r4; Ti p2 r2 v2-2-2-2-2-2-2-2; Mt p2 r2 v2-2-2-2. II: Fe d3 p2 r4; Ti p2 r2 v2-2-2-2-2-2-2- 2; Mt p2 r1 v2-2-2-2. III: Fe d3 p3 r4; Pa p1 r1; Ti d1 p2 r2 v2-2-2; Mt d3 p3 r3 v2-2-1. IV: Fe d3 p2 r1; Pa p1 r1; Ti d1 p2 r2 v2-2-2; Mt d3 p3 r3 v2-1-2-1.

Epigyne as in Figs 8–10 . Epigynal plate 1.2 times wider than long. Fovea (Fo) elliptical, 2.7 times wider than long. Lips of epigyne (Li) almost square-shaped, with rectangular handle (HL). Scape (Sc) divided into two parts: trapezoidal smooth dorsal part (DS) and fusiform haired ventral one (VS). Copulatory ducts (CD) located posteriorly, irregularly twisted. Receptacles (Re) rod-shaped, with globular heads (RH).

DISTRIBUTION. This species is widely distributed in East Asia: China (Zhejiang), South Korea and Japan ( Song et al., 1999) but firstly recorded from Russia ( Fig. 14 ).

Figures

Figs 6–12. Takeoa nishimurai. 6 – body, dorsal view; 7 – same, ventral view; 8, 9 – epigyne, dorsal view; 10 – same, ventral view; 11 – habitat; 12 – living specimens. Abbreviations: CD – copulatory ducts, DS – dorsal part of scape, Fo – fovea, HL – handle of lip of epigyne, Li – lip of epigyne, Re – receptacle, RH – receptacle head, Sc – scape, VS – ventral part of scape. Scale bars = 2 mm (6, 7), 0.2 mm (8–10).

Fig. 14. Distribution map of Takeoa spp. Squares – T. nishimurai (red symbol – new record, black symbols – previous records); circle – T. huangshan.