Karakumosa zyuzini, Logunov & Ponomarev, 2020

Logunov, Dmitri V. & Ponomarev, Alexander V., 2020, Karakumosa gen. nov., a new Central Asian genus of fossorial wolf spiders (Araneae: Lycosidae: Lycosinae), Revue suisse de Zoologie 127 (2), pp. 275-313 : 305-309

Karakumosa zyuzini sp. nov.

Figs 155 , 169-186

Holotype: ISEA, 001.8405 ; male; UZBEKISTAN, Navoiy Region , Kanimekh Distr., near Chengeldy (c. 40°56’44.1”N, 64°18’06.0”E), flat clay clough between sandy plots; 22.-23.V.1994; leg. A.A. Zyuzin.

Paratypes: ISEA, 001.4188 ; 11 males, 3 females; collected together with the holotype . – ZMMU; 2 males, 2 females; same data . – MMUE; 3 males, 3 females; same data . – MHNG; 2 males, 2 females; same data .

Etymology: The species is dedicated to our friend and colleague, Dr Alexei A. Zyuzin (Almaty, Kazakhstan), an expert on the Lycosidae , who collected the type specimens of this species.

Diagnosis: The male of K. zyuzini sp. nov. can be readily distinguished from males of all other known Karakumosa species by the shape of the large, poorly marked proximal extension of the MA ( Figs 174, 176 ). The female of K. zyuzini sp. nov. is most similar to that of K. repetek sp. nov. from which it differs in the shape of the posterior transverse epigynal plate (with straight posterior margin vs. dumbbell-shaped, Fig. 179 cf. Fig. 96 ) and the straight vs. C-curved spermathecae ( Fig. 182 cf. Fig. 95 ). See also comments under ‘Diagnoses’ of K. shmatkoi sp. nov. and K. turanica sp. nov.

Description: Male (paratype, MMUE). Measurements: Carapace 10.50 long, 8.00 wide. Eye sizes and interdistances: AME 0.51, ALE 0.35, PME 1.00, PLE 0.90, AME-AME 0.25, AME-ALE 0.30, PME-PME 1.25, PME-PLE 1.40. Width of anterior eye row 2.00, of second row 3.00, of third row 3.90. Clypeus height 0.37; chelicera length 4.30. Abdomen 10.50 long, 6.30 wide. Length of leg segments: I 11.00 + 4.00 + 9.90 + 9.80 + 5.00 (39.70); II 10.50 + 3.80 + 9.10 + 10.00 + 4.80 (38.20); III 9.30 + 3.30 + 7.10 + 10.50 + 4.10 (34.30); IV 11.50 + 3.80 + 9.60 + 13.80 + 5.00 (43.70). Leg formula: IV, I, II, III.

Colouration in alcohol ( Figs 169-170 ): Carapace brown, densely covered with white setae and with two poorlymarked wide brownish longitudinal paramedian bands. Sternum yellow, densely covered with white setae. Maxillae brownish yellow. Labium brownish yellow, with yellow tip. Chelicerae brown, their frontal and lateral sides densely covered with white setae. Abdomen: dorsum densely covered with white setae, with a brownish colour pattern consisting of longitudinal lines outlining cardiac mark and transverse lines in rear half of dorsum; sides and venter yellow, densely covered with white setae. Book-lung covers yellow, densely covered with white setae. Spinnerets yellow brownish. All legs yellow brownish, densely covered with white setae; metatarsi and tarsi of all legs ventrally darker (brownish). Palp yellow brownish, densely covered with white setae. Palp structure ( Figs 173-178, 180-181, 183-186 ):Acutely pointed synembolic lamellae both curved downwards and subparallel to each other; median tooth bifurcated, with a serrated prolateral edge; proximal extension large and ovoid, not distinct from margin of outer plate; inner plate large, transverse-ovoid; conductor triangular, pointed at its tip.

Female (paratype, MMUE). Measurements: Carapace 12.00 long, 9.70 wide. Eye sizes and interdistances: AME 0.50, ALE 0.40, PME 1.00, PLE 1.00, AME-AME 0.40, AME-ALE 0.25, PME-PME 1.40, PME-PLE 1.60. Width of anterior eye row 2.40, of second row 3.00, of third row 4.25. Clypeus height 0.65; chelicera length 6.20. Abdomen 16.20 long, 12.00 wide. Length of leg segments: I 10.00 + 4.20 + 8.10 + 6.50 + 3.70 (32.50); II 9.40 + 4.10 + 7.40 + 7.10 + 3.60 (31.60); III 8.50 + 3.90 + 6.10 + 7.50 + 3.90 (29.90); IV 11.00 + 4.00 + 8.60 + 10.50 + 4.60 (38.70). Leg formula: IV, I, II, III.

Colouration in alcohol ( Figs 171-172 ): Carapace dark brown, densely covered with yellowish white setae and with a poorly marked pattern of two wide brownish longitudinal paramedian bands. Sternum yellow-orangecoloured, densely covered with white setae. Maxillae and labium brown, with yellow tips. Chelicerae dark brown, their frontal and lateral sides densely covered with yellowish white setae. Abdomen: dorsum densely covered with yellowish white setae, with a brownish cardiac mark; sides and venter yellow, densely covered with white setae. Book-lung covers yellow, covered with white setae. Spinnerets yellow brownish. All legs yellow brownish, densely covered with white setae; metatarsi and tarsi of all legs darker (brownish). Palp yellow brownish, densely covered with white setae, carrying a tarsal claw.

Epigyne and vulva ( Figs 179, 182 ): Epigynal atrium twice as long as wide, with almost subparallel, slightly sigmoid lateral edges; posterior transverse plate narrow and straight; spermathecae tube-shaped, slightly swollen in anterior part and straight, directed antero-mediad, inclined towards each other.

Distribution: Only known from the type locality, Chengeldy in Navoiy Region of Uzbekistan ( Fig. 155 ).

Figures

Fig. 155. Localities of four species in the genus Karakumosa gen. nov.

Figs 169-172. Karakumosa zyuzini sp. nov., male paratype (169-170) and female paratype (171-172), in MMUE. (169, 171) Body, ventral view. (170, 172) Ditto, dorsal view. Scal bars 1 cm.

Figs 173-186. Karakumosa zyuzini sp. nov., male paratype (173-176, 178, 180-181, 183-186) and female paratype (177, 179, 182), in MMUE. (173-174, 176) Bulbus, ventral view. (175) Embolic division. (177) Left female chelicera, ventral view. (178) Bulbus, retrolateral view. (179) Epigyne, ventral view. (180-181, 183-186) Median tooth of MA, posterior view. (182) Vulva, dorsal view. Scale bars 0.5 mm (173, 176-179), 0.25 mm (182), 0.2 (174), 0.1 mm (175, 180-181, 183-186).

Figs 93-102. Karakumosa repetek sp. nov.; male holotype (97-98), male paratype (93-94, 99-102) and female paratype (95-96). (93-94, 98). Bulbus, ventral view. (95) Vulva, dorsal view. (96) Epigyne, ventral view. (97) Median tooth of MA, ventral view. (99) Embolic division, ventral view. (100) Median tooth of MA, posterior view. (101) Embolic division, apical view. (102) Bulbus, retrolateral view. Scale bars 0.5 mm (93, 96), 0.25 mm (94, 102), 0.2 mm (98), 0.1 mm (95, 97, 99-101). Abbreviations as explained in Material and methods.