Paramolotra metok Tong & Li, 2021

Cheng, Weihua, Bian, Dongju, Tong, Yanfeng & Li, Shuqiang, 2021, A new genus and two new species of oonopid spiders from Tibet, China (Araneae, Oonopidae), ZooKeys 1052, pp. 55-69 : 55

Paramolotra metok Tong & Li sp. nov.

Figures 4 , 5 , 6 , 7C, D, G, H , 8G-L , 9C, D , 10

Type materials.

Holotype ♂: China, Tibet, Nyingchi, Metok County, Metok Town; 29°19.399'N, 95°20.448'E; 1300 m a.s.l.; 3.VIII.2013; Y. Lin leg. (SYNU-441). Paratypes 1♂2♀: same data as for holotype (SYNU-442-444); 1♀: same data as for holotype (SYNU-446); 1♀: Metok County, Yadang Village; 29°20.605'N, 95°20.807'E; 1360 m a.s.l.; Y. Lin leg. (SYNU-445); 2♀: Metok County, Metok Town, Countryside Tour, back hills; 29°19.087'N, 95°18.876'E; 1280 m a.s.l.; Y. Lin leg. (SYNU-447-448); 1♂: Metok County, Metok Town; 29°19.382'N, 95°19.016'E; 980 m a.s.l.; Y. Lin leg. (SYNU-449).

Diagnosis.

This new species is similar to Paramolotra pome sp. nov., but can be distinguished by the long, curved hook like anterior protrusion (ap) of embolar region (Fig. 5 ), and the very short anterior arm of T-shaped sclerite of endogyne (Fig. 9D ). Paramolotra pome sp. nov. males have the narrow anterior protrusion (ap) of embolar region (Fig. 2 ), and females have very long anterior arm of T-shaped sclerite of endogyne (Fig. 9B ).

Description.

Male (holotype). Body: dark brown; habitus as in Fig. 4A, C, E ; body length 2.16. Carapace (Fig. 4B, F ): 1.06 long, 0.87 wide. Clypeus (Fig. 4G ): ALE separated from edge of carapace by 1.3 times their diameter. Abdomen (Fig. 4H, I ): 0.99 long, 0.79 wide. Palp (Figs 5 , 7C, D ): femur 0.24 long, patella 0.17 long, tibia 0.13 long; cymbiobulbus 0.52 long, 0.28 wide, length/maximal width = 1.86; embolar region with an ear-shaped basal protrusion (bp), a long, curved hook like anterior protrusion (ap), a basally broad, distally finger like posterior protrusion (pp), an anterior membrane (am) and a posterior membrane (pm).

Female (paratype, SYNU-443). As in male except as noted. Body: length 2.48; habitus as in Fig. 6A, C, E . Carapace (Fig. 6B, F, G ): 1.12 long, 0.89 wide. Abdomen: 1.28 long, 0.98 wide. Epigastric area (Figs 6H , 9C ): genital atrium relatively wide, broadly oval. Endogyne (Fig. 9D ): with a T-shaped sclerite; the anterior arm of the T-shaped sclerite very small.

Etymology.

The specific name is a noun in apposition taken from the type locality.

Distribution.

Known only from the type locality (Fig. 10 ).

Figures

Figure 2. Paramolotra pome sp. nov., male left palp, SEM A, B, D prolateral, retrolateral, and dorsal views C, E, F distal part of cymbiobulbus, prolateral, retrolateral, and dorsal views. Abbreviations: ap = anterior protrusion; bp = basal protrusion; dp = distal protrusion; pp = posterior protrusion. Scale bars: 0.2 mm (A, B, D); 0.02 mm (C, E, F).

Figure 4. Paramolotra metok sp. nov., male holotype (SYNU- 441) A, C, E habitus in dorsal, ventral, and lateral views B, D, F, G prosoma in dorsal, ventral, lateral, and anterior views H, I abdomen in ventral and lateral views. Scale bars: 0.8 mm (A, C, E); 0.4 mm (B, D, F-I).

Figure 5. Paramolotra metok sp. nov., male left palp, SEM A, B, D prolateral, retrolateral, and dorsal views C, E, F distal part of cymbiobulbus, prolateral, retrolateral, and dorsal views. Abbreviations: am = anterior membrane; ap = anterior protrusion; bp = basal protrusion; pm = posterior membrane; pp = posterior protrusion. Scale bars: 0.2 mm (A, B, D); 0.02 mm (C, E, F).

Figure 6. Paramolotra metok sp. nov., female paratype (SYNU- 443) A, C, E habitus in dorsal, ventral, and lateral views B, D, F, G prosoma in dorsal, ventral, lateral, and anterior views H abdomen in ventral view. Scale bars: 0.8 mm (A, C, E); 0.4 mm (B, D, F, G); 0.2 mm (H).

Figure 7. Paramolotra pome sp. nov. A, B, E, F, male holotype (SYNU- 435); Paramolotra metok sp. nov. C, D, G, H male holotype (SYNU- 441) A, C left palp, prolateral view B, D left palp, retrolateral view E, G left chelicerae, anterior view F, H left chelicerae, lateral view. Scale bars: 0.2 mm (A-D); 0.1 mm (E-H).

Figure 8. Paramolotra pome sp. nov. A-F male holotype (SYNU- 435); Paramolotra metok sp. nov. G-L male holotype (SYNU- 441) A, G labium and endite, ventral view B, H left endite, ventral view C, I, E, K, F, L left chelicerae, lateral, posterior, and anterior views D, J left chelicerae, posterior magnified views. Abbreviations: ami = anterior median indentation; csp = cone-shaped protuberance; lt = large tooth; ss = slit sensillum. Scale bars: 0.1 mm (A, C, E-G, I, K, L); 0.04 mm (B, D, H, J).

Figure 9. Paramolotra pome sp. nov. A, B female paratype (SYNU- 438); Paramolotra metok sp. nov. C, D female paratype (SYNU- 443) A, C copulatory organ, ventral view B, D copulatory organ, dorsal view. Abbreviations: apo = apodemes; pr = posterior receptaculum; tls = tube-like structure; tsc = T-shaped sclerite. Scale bars: 0.1 mm.

Figure 10. Distribution records of Paramolotra species from Tibet, China 1. P. pome sp. nov. 2. P. metok sp. nov.