Pamirosa Fomichev, Omelko & Marusik, 2024

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 : 250-263

Genus Pamirosa Fomichev, Omelko & Marusik, 2024

Pamirosa Fomichev, Omelko & Marusik 2024: 1006 .

Type species Pamirosa kudratbekovi Fomichev, Omelko & Marusik, 2024 , from Tajikistan.

Remarks. This hitherto monotypic genus was described based on two specimens (male and female) collected in stony scree at an altitude of 4700 m in Muzkol Mountain Range (Gorno-Badakhshan Region, Tajikistan). Pamirosa was placed in Artoriinae , judging from several features concerning mainly the male palp (see Fomichev et al. 2024 for details). The type species, P. kudratbekovi , was the first record of this subfamily in Central Asia. The genus differs from all other known genera of Artoriinae by the helicoid tip of the embolus and corresponding screw-shaped membranous copulatory ducts in female. Pamirosa is the only known genus of Lycosidae with membranous copulatory ducts.

Key to Pamirosa species

Males

1. Tip of cymbium bent dorsally ( Figs 2 , 11 , 16 , figs 5, 7, 9 in Fomichev et al. 2024).................................. 2

– Tip of cymbium unmodified ( Figs 5, 8 , 13, 15 , 17, 18 )........................................................ 3

2. Tegular apophysis (TA) Г-shaped, with ventrally-directed prolateral process (PP) ( Fig. 44 ).............. P. alaica sp. nov.

– Tegular apophysis irregularly shaped with clearly prolateral-directed prolateral process (fig. 22 in the same paper)................................................................................................. P. kudratbekovi

3. Retrolateral process of tegular apophysis (RP) hook-shaped, distal part of embolus with cone-shaped process (CP) tip of embolus shortened and hooked ( Figs 40 , 47 ).............................................. P. archalturica sp. nov.

– Retrolateral process of tegular apophysis semicircular, distal part of embolus without cone-shaped process with apical part making 2 complete loops ( Figs 42 , 50 )................................................... P. transalaica sp. nov.

Females (female of P. archalturica sp. nov. is unknown)

1. Fovea (Fo) triangular, heads of receptacles (RH) parallel ( Figs 53–55 , 60–61 )....................... .. P. alaica sp. nov.

– Fovea trapezoidal, heads of receptacles converging ( Figs 57–59 , 63–64 , figs 33–37 in the same paper).................. 2

2. Posterior part receptacles (Re) circular ( Figs 63–65 )......................................... P. transalaica sp. nov.

– Posterior part of receptacles screw-shaped (figs 36–38 in the same paper).............................. P. kudratbekovi

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 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 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 52–59. Female habitus (52, 56) and epigyne (53–55, 57–59) of Pamirosa alaica sp. nov. (52–55) and P. transalaica sp. nov. (56–59). 52, 56—dorsal; 53, 57—intact, ventral; 54, 58—dissected, ventral; 55, 59—macerated, ventral. Scale bars: 52, 56 = 2 mm; 53–55, 57–59 = 0.2 mm. Abbreviations: CO—copulatory opening, EP—epigynal plate, Fo—fovea.

FIGURES 60–65. Female internal genitalia of Pamirosa alaica sp. nov. (60–62) and P. transalaica sp. nov. (63–65). 60, 63—macerated, dorsal; 61–62, 64–65—macerated and painted, dorsal. Scale bars: 0.2 mm. Abbreviations: CD—copulatory duct, FD—fertilization duct, Re—posterior part of receptacle, RG—rod-shaped gland, RH—receptacle head.