Pamirosa archalturica, Fomichev & Omelko, 2025

Fomichev, Alexander A. & Omelko, Mikhail M., 2025, Three new species of Pamirosa Fomichev, Omelko & Marusik, 2024 (Araneae: Lycosidae) from Kyrgyzstan, extending the known range of Artoriinae in Central Asia, Zootaxa 5618 (2), pp. 249-266 : 253-254

Pamirosa archalturica sp. nov.

Figs 4–6 , 12–13 , 17 , 22–24 , 31–33 , 39–40 , 46–48 , 67 , 71–72

Type material. KYRGYZSTAN: Osh Region: holotype ♂ ( ISEA, 001.9174 ), Alay Mountain Range, Archaltur Mt. Ridge , 18 km W of Erkeshtam Village, 39°41.335’N, 73°41.024’E, scree, 3700–4000 m, 19.VII.2024, A.A. Fomichev .

Etymology. The specific name is derived from Archaltur Mt. Ridge, adjective.

Diagnosis. The male of P. archalturica sp. nov. differs from all known species of the genus by having the retrolateral process of the tegular apophysis (RP) hook-shaped (vs. semicircular: cf. Figs 47 and 44, 50 , Fomichev et al. 2024: fig. 22), distal part of the embolus with a cone-shaped process (CP) and a shortened and hooked tip of embolus (vs. without a process, coiled tip; cf. Figs 40 and 38, 42 , Fomichev et al. 2024: fig. 20). For a more detailed list of differences between P. archalturica sp. nov. and other Pamirosa species see Table 11 .

Description. Male. Total length 7.0. Carapace: 3.75 long, 2.7 wide. Opisthosoma: 3.3 long, 2.25 wide. General appearance as in Fig. 4 . Coloration. Carapace dark brown with light median stripe. Eye field black. Clypeus, chelicerae, labium and sternum dark brown. Endites and coxae yellow brown. Palps brown, cymbium yellow brown. Legs brown, without annulations. Opisthosoma gray, with contrasting brick-red colored cardiac mark. Spinnerets gray. Eye sizes and interdistances: AME 0.10, ALE 0.10, PME 0.36, PLE 0.29, AME–AME 0.14, AME–ALE 0.11, PME–PME 0.29, PLE–PLE 0.94. Width of anterior eye row 0.67, 2 nd row 0.93, 3 rd row 1.24. Clypeus height at AME 0.14. For legs measurements see Table 5 . For legs spination see Table 6 .

Male palp as shown in Figs 5–6 , 12–13 , 17 , 22–24 , 31–33 , 39–40 , 46–48 . Femur 2.4 times longer than tibia, with 3 dorsal and 2 prolateral spines. Patella 1.3 times longer than tibia, without spines. Tibia 2.4 times shorter than cymbium, with 1 dorsal spine. Cymbium length/width ratio 1.5. Tip of cymbium wide and thick, unmodified. Subtegulum (St) square in retrolateral view. Tegulum (Te) circular, length-width ratio 0.8. Retrolateral ridge (RR) straight. Conductor (Cn) square in ventral view, abrupt. Prolateral outgrowth of tegulum (PO) with parallel lateral edges. Tegular apophysis (TA) extends 1/2 beyond conductor. Prolateral process of tegular apophysis (PP) ventrally-directed, digitiform in prolateral view. Secondary prolateral process of tegular apophysis (SP) racemose, consisting of four blades. Retrolateral process of tegular apophysis (RP) hook-shaped, bent prolaterad. Proximal part of embolus (PE) semicircular, steeply curved. Basoembolic apophysis (BA) with anterior (AL) and posterior (PL) lobes equal in size. Terminal apophysis (Tr) with blunt tip. Dorsal process of embolic division (DP) elongated triangle-shaped in dorsal view. Distal part of embolus (DE) with massive cone-shaped process (CP) and shortened tip of embolus.

Female. Unknown.

Distribution. Known only from the type locality ( Figs 71–72 ).

Comments. Based on all the examined characters, P. archalturica sp. nov. stands apart from all other species of the genus ( Table 11 ). The most important feature that distinguishes this species from all others is the distal part of the embolus with cone-shaped process (CP) and shortened tip of embolus. The female of P. archalturica sp. nov. is unknown, but it can be assumed that it possesses shortened copulatory ducts corresponding to the shortened embolic tip in the male.

Figures

FIGURES 1–9. Habitus (1, 4, 7), whole palp (2, 5, 8) and its terminal part (3, 6, 9) of Pamirosa alaica sp. nov. (1–3), P. archalturica sp. nov. (4–6) and P. transalaica sp. nov. males (7–9). 1, 3, 4, 6, 7, 9—dorsal; 2, 5, 8—retrolateral. Scale bars: 1, 4, 7 = 2 mm; 2–3, 5–6, 8–9 = 0.2 mm. Abbreviations: SS—stick-like setae.

FIGURES 10–15. Terminal part of male palp of Pamirosa alaica sp. nov. (10–11), P. archalturica sp. nov. (12–13) and P. transalaica sp. nov. (14–15). 10, 12, 14—ventral; 11, 13, 15—prolateral. Scale bars: 0.2 mm.

FIGURES 16–18. Terminal part of male palp of Pamirosa alaica sp. nov. (16), P. archalturica sp. nov. (17) and P. transalaica sp. nov. (18), retrolateral. Scale bars: 0.2 mm.

FIGURES 19–27. Bulb of Pamirosa alaica sp. nov. (19–21), P. archalturica sp. nov. (22–24) and P. transalaica sp. nov. (25– 27). 19, 22, 25— prolateral; 20, 23, 26—ventral; 21, 24, 27— retrolateral. Scale bars: 0.2 mm. Abbreviations: St —subtegulum, Te —tegulum.

FIGURES 28–36. Embolic division of Pamirosa alaica sp. nov. (28–30), P. archalturica sp. nov. (31–33) and P. transalaica sp. nov. (34–36). 28, 31, 34—prolateral; 29, 32, 35—ventral; 30, 33, 36—retrolateral. Scale bars: 0.2 mm. Abbreviations: AL—anterior lobe of basoembolic apophysis, AM—accompanying membrane, BA—basoembolic apophysis, DE—distal part of embolus, PE—proximal part of embolus, PL—posterior lobe of basoembolic apophysis, Tr—terminal apophysis.

FIGURES 37–42. Embolic division of Pamirosa alaica sp. nov. (37–38), P. archalturica sp. nov. (39–40) and P. transalaica sp. nov. (41–42). 37, 39, 41—dorsal; 38, 40, 42—anterior. Scale bars: 0.2 mm. Abbreviations: BA—basoembolic apophysis, CP—cone-shaped process of distal part of embolus, DE—distal part of embolus, DP—dorsal process of embolic division, Tr—terminal apophysis.

FIGURES 43–51. Tegulum of Pamirosa alaica sp. nov. (43–45), P. archalturica sp. nov. (46–48) and P. transalaica sp. nov. (49–51). 43, 46, 49—prolateral; 44, 47, 50—ventral; 45, 48, 51—retrolateral. Scale bars: 0.2 mm. Abbreviations: Cn— conductor, PP—prolateral process of tegular apophysis, PO—prolateral outgrowth of tegulum, RP—retrolateral process of tegular apophysis, RR—retrolateral ridge of tegulum, SD—sperm duct, SP—secondary prolateral process of tegular apophysis, TA—tegular apophysis, TS—stalk of tegular apophysis.

FIGURES 66–70. Habitat of Pamirosa alaica sp. nov. in Tengizbai Mt. Pass (66), P. archalturica sp. nov. in Archaltur Mt. Range (67) and P. transalaica sp. nov. near Bardobo Border Outpost (68) and live female (69) and male (70) of P. transalaica sp. nov.

FIGURES 71–72. Collecting localities of Pamirosa spp. Diamond—P. alaica sp. nov.; inverted triangle—P. archalturica sp. nov.; triangle—P. kudratbekovi; square—P. transalaica sp. nov.; circle with star—Evippa spp.; empty circle—studied locality without Lycosidae records. The frame on Fig. 72 refers to the content of Fig. 71.