Tegenaria egrisiana, Zamani & Kaya & Marusik, 2024

Zamani, Alireza, Kaya, Rahşen S. & Marusik, Yuri M., 2024, New taxonomic and faunistic data on the funnel-weavers (Araneae, Agelenidae) of Turkiye and the Caucasus, with five new species, ZooKeys 1218, pp. 251-286 : 251-286

Tegenaria egrisiana sp. nov.

Figs 16 D – F , 17 A – D , 18 A, B , 20 C

Type material.

Holotype • ♂ ( ZMMU), Georgia: Imereti Prov.: cave between Gumbrini and Khamali , 42°18'56.4"N, 42°38'09.4"E, 161 m, 19.07.2012 (Y. M. Marusik) . Paratypes: • 1 ♂ 1 ♀ ( ZMUT), 2 ♀ ( ZMMU), same data as for the holotype .

Diagnosis.

Tegenaria egrisiana sp. nov. is very similar to T. pallens Zamani & Marusik, 2023 from Iran in the overall shape of the copulatory organs. However, the male differs from T. pallens in the shorter tip of the cymbium, ~ 0.7 the length of the palpal tibia (Fig. 17 A – D , 20 C ; vs as long as the palpal tibia), the blunt tip of the conductor (vs pointed and curved; Zamani et al. 2023: fig. 2 A), the embolus base positioned at the 9: 00 o’clock position (vs 8: 30 o’clock), the tip of the embolus terminating at ~ 2: 00 o’clock position (Fig. 17 A ; vs 1: 00 o’clock), and the median apophysis (Ma) with a different shape. The female of the new species differs from that of T. pallens in the epigynal plate nearly twice as wide as it is long (vs> 3 × wider than long; cf. Fig. 16 D and Zamani et al. 2023: fig. 3 C), in having a distinct median plate (vs absent), and a small rectangular fovea (vs oval; cf. Fig. 16 D, E and Zamani et al. 2023: fig. 3 A, B).

Description.

Male. Habitus as in Fig. 18 A . Total length 7.10. Carapace 3.23 long, 2.37 wide. Eye sizes: AME: 0.12, ALE: 0.17, PME: 0.14, PLE: 0.18. Carapace, labium, and maxillae pale brown; carapace with darker submedian bands; chelicerae reddish brown; sternum greyish brown, with yellow median band and six spots. Legs pale brown, with very faint annulations; Fe with long ventral setae at basal 1 / 2. Abdomen pale beige, with greyish dots, patches, and stripes. Spinnerets uniformly pale beige. Measurements of legs: I: 22.92 (6.12, 1.44, 6.26, 6.50, 2.60), II: 19.02 (5.05, 1.28, 4.96, 5.50, 2.23), III: 16.90 (4.63, 1.15, 4.15, 5.15, 1.82), IV: 20.79 (5.50, 1.28, 5.24, 6.65, 2.12).

Palp as in Fig. 17 A – D ; femur longer than patella + tibia; femur ~ 2.2 × longer than tibia (Fig. 20 C ); patella 2 × longer than wide; cymbium ~ 1.8 × longer than tibia; tibia ~ 2 × longer than wide, with two apophyses: large and membranous retroventral apophysis (Rv) and conical retrolateral apophysis (Rl) with a notched blunt tip (Figs 17 D , 20 C ); retrolateral apophysis shorter than ventrolateral one; cymbium 2 × longer than wide; bulb longer than wide; median apophysis (Ma) large and wide, originating at ~ 4 o’clock position; conductor as long as wide, with a spatula-like tip; embolus filiform, roundly bent, originating at ~ 9: 00 o’clock position (Fig. 17 A ).

Female. Habitus as in Fig. 18 B . Total length 8.68. Carapace 4.25 long, 2.95 wide. Eye sizes: AME: 0.12, ALE: 0.20, PME: 0.18, PLE: 0.20. Coloration as in male. Measurements of legs: I: 22.80 (6.13, 1.65, 6.00, 6.30, 2.72), II: 19.81 (5.53, 1.57, 4.96, 5.47, 2.28), III: 18.03 (5.07, 1.44, 4.32, 5.22, 1.98), IV: 22.57 (6.18, 1.47, 5.63, 7.00, 2.29).

Epigyne as in Fig. 16 D – F ; epigynal plate ~ 2 × wider than long with two sclerotized and barely visible teeth; fovea small and almost rectangular; copulatory openings (Co) located on anterior edges of holes (Fig. 16 D, E ); copulatory ducts (Cd) with a membranous anterior part and a widened slightly sclerotized posterior part; receptacles tubular and twisted along their axis (Fig. 16 F ).

Distribution.

Known only from the type locality in Imereti Province, central-western Georgia.

Etymology.

The specific epithet refers to the historical Georgian polity of Egrisi, which was centered in present-day western Georgia.

Figures

Figure 16. Epigyne of Tegenaria dalmatica (A – C) and T. egrisiana sp. nov. (D – F). A, E macerated, ventral view B, F vulva, dorsal view C, D intact, ventral view. Abbreviations: Cd – copulatory duct, Co – copulatory opening. Scale bars: 0.2 mm.

Figure 17. Male palp of Tegenaria egrisiana sp. nov. A ventral view B prolateral view C dorsal view D retrolateral view. Abbreviations: Ma – median apophysis, Rl – retrolateral apophysis, Rv – retroventral apophysis. Scale bars: 0.2 mm.

Figure 18. Habitus of Tegenaria egrisiana sp. nov. (A, B), T. dalmatica (C), T. beyazcika sp. nov. (D), and T. tekke (E), dorsal view. A, D males B, C, E females.

Figure 20. Full male palp of Tegenaria longimana (A), T. anhela (B), and T. egrisiana sp. nov. (C). A prolateral view B, C retrolateral view.