Sinopoda rotunda, Grall & Jäger, 2020

Grall, Elena & Jäger, Peter, 2020, Forty-seven new species of Sinopoda from Asia with a considerable extension of the distribution range to the South and description of a new species group (Sparassidae: Heteropodinae), Zootaxa 4797 (1), pp. 1-101 : 55-56

Sinopoda rotunda spec. nov.

Figs 36 a–b, 62 e–f

Type material: Holotype: female (SD 1452), CHINA: Yunnan Province: Fugong County, Lishadi Cave , 3.9 km E of Yamu River Fork, N27.12818°, E98.86014°, 1500 m, 10 August 2005, P. Paquin leg., field number PP-3105 ( CAS, CASENT 9022584 ).

Additional material examined: 1 juvenile with same data as for holotype ( CAS, CASENT 9022584 ) .

Etymology: The species name is derived from the Latin word “rotundus, -a, -um” meaning “round” and refers to the rounded posterior part of the spermathecae; adjective.

Diagnosis: Females of S. rotunda spec. nov. are similar to those of S. wayala spec. nov. ( Figs. 51 a–b) in having a wide lobal septum with median indentation anteriorly and a spherical posterior part of spermatheacae which is distinctly wider than the anterior part. They can be distinguished from the latter species by: 1. three short anterior bands (two long anterior bands in S. wayala spec. nov.), 2. slit sensilla absent (two present in S. wayala spec. nov.), 3. epigynal pockets extending in posterior half of epigyne (extending not in posterior half of epigyne in S. wayala spec. nov.), and 4. glandular appendages narrow, straight and without distinctive glands (wide, curved and with distinctive glands in S. wayala spec. nov.).

Description: Female (holotype): Total length 12.10; prosoma 5.40 long, 4.60 wide, anterior width of prosoma 2.70; opisthosoma 6.70 long, 3.60 wide. Eye measurements: AME 0.20; ALE 0.28; PME 0.18; PLE 0.27; AME– AME 0.17; AME–ALE 0.09; PME–PME 0.32; PME–PLE 0.37; AME–PME 0.34; ALE–PLE 0.33; clypeus AME 0.37; clypeus ALE 0.35. Leg formula: 2143. Measurements of palp and legs: palp: 8.75 (2.60, 1.30, 2.05, 2.80); I: 24.10 (6.60, 2.70, 6.90, 6.10, 1.80); II: 26.10 (7.40, 2.80, 7.50, 6.50, 1.90); III: 22.50 (6.50, 2.60, 6.30, 5.40, 1.70); IV: 23.80 (6.80, 2.20, 6.60, 6.30, 1.90). Spination: palp: 131, 101, 2121, 1014; legs: Fe I–III 323, IV 321; Pa I–III 001, IV 000; Ti I–II 2026, III 2126, IV 2226; Mt I–II 0014, III 2016, IV 3036. Cheliceral furrow with 3 anterior and 4 posterior teeth.

Colouration in ethanol: Prosoma yellow, antero-laterally yellowish-brow, posterior margin brown. Sternum yellowish-white, laterally with light brown margin. Opisthosoma greyish-white with brown spots, posterior part darker, ventral part medially without patterning, laterally brown spots. Chelicerae yellowish-brown. Palps and legs yellow.

Copulatory organ as in diagnosis. Epigynal field wider than long, left anterior band discontinuous. Lateral lobes fused, posterior part with shallow median indentation. Epigynal pockets running from latero-posterior to medio- anterior. Fusion bubbles arranged medially at a longitudinal line at epigyne. Internal duct system nearly as wide as long. Spermathecae fused along median line. Glandular appendages extending only in anterior half of internal duct system, postero-laterad. Proximal part of fertilization ducts wider than distal part, curved. Fertilization ducts arising postero-laterally and proximal part wider than distal part.

Male: Unknown.

Distribution: Known only from the type locality.

Figures

FIGURES 36 a–b. Sinopoda rotunda spec. nov., holotype female from Lishadi Cave, copulatory organ. a Epigyne, ventral; b Vulva, dorsal.

FIGURES 51 a–b. Sinopoda wayala spec. nov., holotype female from Wayala Ku Cave, copulatory organ. a Epigyne, ventral; b Vulva, dorsal.