Platnick sanglok, Marusik & Fomichev, 2020

Marusik, Yuri M. & Fomichev, Alexander A., 2020, A new genus of Liocranidae (Arachnida: Araneae) from Tajikistan, Acta Biologica Sibirica 6, pp. 583-594 : 583

Platnick sanglok sp. n.

Figs 14 , 16 , 18 , 20 , 29-34

Type.

Holotype ♀ (ZMMU), TAJIKISTAN, Khatlon Region, Dangara Distr., SW slope of Sanglogh (= Sanglok ) Mt. Range , 38°13.091'N, 69°14.282'E, clay-sand cliffs along road and among litter under Artemisia , 1362 m, 30.04.2015 (Y.M. Marusik) .

Etymology.

The species epithet is a noun in apposition taken from the type locality.

Diagnosis.

The new species differs from those of P. astana sp. n. by the indistinct fovea and unconcealed copulatory openings (Co) (vs. fovea distinct, copulatory openings concealed by hoods), as well as by the copulatory ducts (Cd) directed posteriorly and the short glands of the receptacles (Rg) not extended anteriorly as much as the receptacles (vs. copulatory ducts directed anteriorly, and glands of receptacles located anterior to receptacles). The two species differ by the spination of tibia II: P. sanglok sp. n. has 5 pairs of ventral spines, whereas P. astana sp. n. has 4 pairs.

Description.

Female. Total length 2.18. Prosoma 0.5 high. Carapace: 1.03 long, 0.81 wide, 0.33 high. Prosoma and chelicerae brown. Legs and palps pale yellow, femora and coxae I darker than other segments. Abdomen and spinnerets white. Postgastral scuta elongate, ovoid, about 4 times longer than wide.

Epigyne as in Figs 29-32 ; fovea indistinct, copulatory openings (Co) unconcealed, hood absent; copulatory ducts directed posteriorly; glands of receptacles short, shorter than anterior extension of receptacles, diverging.

Leg measurements:							Leg spination:
	Fe	Pt	Ti	Mt	Ta	Total		Fe		Ti	Mt
I	0.77	0.41	0.66	0.43	0.43	2.7	I	-		pv6 rv5	d1 pv1 rv1
II	0.7	0.37	0.57	0.41	0.41	2.46	II	-		pv5 rv5	pv1 rv1
III	0.53	0.3	0.4	0.4	0.37	2.0	III	d1		pv1 v1	pv1
IV	0.76	0.4	0.66	0.61	0.5	2.93	IV	d1		pv1 r1	-

Distribution.

Known from the type locality only (Figs 33-34 ).

Figures

Figures 14 - 26. Female habitus and details: 14, 16, 18, 20 - Platnick sanglok sp. n. 15, 17, 19, 21 - 25 - P. astana sp. n. 26 - P. shablyai sp. n. 14, 15 - Habitus, dorsal, 16, 17 - ditto, ventral, 18, 19 - ditto, lateral, 20, 21 - female leg I, prolateral, 22 - female maxillae and palps, dorsal, 23, 24 - female chelicera, mesal and anterior, 25 - the fang of the female chelicera, posterior, 26 - leg I Ta of the male. Scale bars: 0.5 mm (14, 15); 0.2 mm (20, 22); 0.05 mm (24, 26); 0.02 mm (25).

Figures 27 - 34. Epigynes: 27, 28 - Platnick astana sp. n.; 29 - 32 - P. sanglok sp. n.; 33, 34 - collecting localities of Platnick species. 27, 29 - Intact, ventral, 31, 32 - macerated, ventral, 28, 30 - macerated, dorsal. Abbreviations: Ah - anterior hood, Cd - copulatory ducts, Co - copulatory opening, Fd - fertilization duct, Fo - fovea, Re - receptacle, Rg - receptacle gland. P. shablyai sp. n. - circle, P. astana sp. n. - triangle, P. sanglok sp. n. - diamond. Frame on Fig. 34 refers to Fig. 33. Scale bars: 0.2 mm (27, 29).