Liphistius hpruso, Aung, Khin Pyae Pyae, Xu, Xin, Lwin, Wai Wai, Sang, Men Zing, Yu, Long, Liu, Hao, Liu, Fengxiang & Li, Daiqin, 2019

Aung, Khin Pyae Pyae, Xu, Xin, Lwin, Wai Wai, Sang, Men Zing, Yu, Long, Liu, Hao, Liu, Fengxiang & Li, Daiqin, 2019, Two new species of the primitively segmented spider genus Liphistius Schioedte, 1849 (Mesothelae, Liphistiidae) from Myanmar, ZooKeys 882, pp. 29-39 : 29

Liphistius hpruso sp. nov. Fig. 3

Type material.

Holotype: MYNAMAR · ♀; Kayah State, Loi Kaw District, Hpruso, Dokhule, along a small road near Queen of Peace Church; 19.41N, 97.10E; alt. 1157 m; 17 July 2018; D. Li, F.X. Liu, X. Xu and L. Yu leg.; XUX-2018-151. Deposited in CBEE.

Paratype: MYANMAR · 1 ♀; same data as for holotype; XUX-2018-152. Deposited in CBEE.

Diagnosis.

Females of Liphistius hpruso sp. nov. resemble those of L. birmanicus and L. pinlaung sp. nov. by the poreplate with paired anterior lobes and anterolateral lobes, but can be distinguished from those of L. birmanicus and L. pinlaung sp. nov. by the globosely receptacular cluster ( Fig. 3D, E ), and the smaller anterolateral lobes of the pore plate ( Fig. 3D, E ); from L. pinlaung sp. nov. by the narrower posterior stalk; from the other Liphistius species by the pore plate with similarly sized anterior lobes and anterolateral lobes, and with the narrow posterior stalk ( Fig. 3 B–E ).

Description.

Female (holotype). Total length, excluding chelicerae, 16.85. Four thick setae on clypeus ( Fig. 3A ). Carapace 7.02 long, 6.16 wide, longer than wide, light brown, furnished with few short, scattered bristles. Eight eyes on darkened ocular tubercle, ALE> PLE> PME> AME. Eye sizes and interdistances: AME 0.05, ALE 0.57, PME 0.35, PLE 0.45; AME-AME 0.09, AME-ALE 0.17, PME-PME 0.08, PME-PLE 0.13, ALE-PLE 0.17, ALE-ALE 0.19, PLE-PLE 0.41, AME-PME 0.09. Chelicerae light and glabrous proximally, robust, dark brown; promargin of chelicerae groove with ten denticles of variable size. Labium 0.77 long, 1.47 wide. Sternum 3.61 long, 1.83 wide, brown with several setae. Opisthosoma 9.50 long, 7.53 wide, dark brown, with 12 tergites, and eight spinnerets. Legs brown with strong hairs and spines, long and short black sparse setae, with three tarsal claws. Measurements: palp 10.59 (3.18 + 2.20 + 2.69 + 2.52), leg I 11.77 (3.09 + 2.31 + 2.85 + 1.99 + 1.52), leg II 12.17 (2.72 + 2.21 + 2.92 + 2.49 + 1.83), leg III 12.45 (2.80 + 2.22 + 3.16 + 2.70 + 1.57), leg IV 20.99 (4.87 + 2.79 + 4.31 + 5.96 + 3.06).

Female genitalia: vulva with nearly rectangular pore plate; pore plate with similarly sized anterior lobes and anterolateral lobes; distinct transition between the pore plate and posterior stalk ( Fig. 3 B–E ); posterior stalk narrow and long; receptacular cluster spherical and small; central dorsal opening small and circular ( Fig. 3 B–E ).

Male. unknown.

Entomology.

" hpruso " refers to the type locality of this species.

Distribution.

Myanmar (Loi Kaw District, Kayah State).

Figures

Figure 3. General somatic morphology (taken after fixed by ethanol) and female genitalia of Liphistius hpruso sp. nov. A female (XUX- 2018 - 151, holotype) B, D XUX- 2018 - 151 C, E XUX- 2018 - 152 B, C vulvae, dorsal view D, E vulvae, ventral view. Scale bars: 10 mm (A); 0.5 mm (B-E).