Sinopoda phom, 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 : 52-54

Sinopoda phom spec. nov.

Figs 34 a–e, 61 k–l, 62 a–b

Type material: Holotype: male ( PJ 924 , SD 1551 ), THAILAND: Kanchanaburi Province: Erawan National Park, Phra Dhat Cave , March 1986, C.L. & P. R. Deeleman leg. ( RMNH).

Paratype: 1 female ( PJ 916 ) with same data as for holotype ( RMNH) .

Additional material examined: 1 subadult female with same data as for holotype ( RMNH) .

Etymology: The species name is derived from the Thai word “phom” meaning “hair” and refers to the setose opisthosoma of the male; noun in apposition.

Diagnosis: Males of S. phom spec. nov. are similar to those of S. exspectata in having an embolic apophysis which is clearly thicker than embolus, and a curved spermophore in ventral view. They can be distinguished from the latter species by 1. cymbium with distal part elongated (not elongated in S. exspectata ), 2. embolus shorter than embolic apophysis and embolic tip straight (slightly longer than embolic apophysis and embolic tip slightly curved in S. exspectata ), 3. distal part of embolic apophysis tapering in ventral view (rounded in S. exspectata ) and 4. vRTA without serrated structure in ventral view and without indentation between vRTA and dRTA in retrolateral view (vRTA with serrated structure in ventral view and with indentation between dRTA and vRTA in retrolateral view in S. exspectata ).

Females of S. phom spec. nov. are similar to those of S. grandispinosa in having a lobal septum with an indentation anteriorly and its anterior part wider than median part. They can be distinguished from the latter species by 1. epigynal pockets running from latero-posterior to medio-anterior (running parallel to posterior margin of the epigyne in S. grandispinosa ), 2. glandular appendages wider than posterior part of spermathecae (nearly as wide as posterior part in S. grandispinosa ), 3. posterior part of spermathecae not divided into two parts (divided into two parts in S. grandispinosa ) and 4. fertilization ducts long and posterior part wider than anterior part (short and posterior part narrower than anterior part in S. grandispinosa ).

Description: Male (holotype): Total length 9.50; prosoma 4.80 long, 4.50 wide, anterior width of prosoma 2.30; opisthosoma 4.70 long, 2.30 wide. Eye measurements: AME 0.17; ALE 0.19; PME 0.14; PLE 0.22; AME–AME 0.13; AME–ALE 0.08; PME–PME 0.29; PME–PLE 0.27; AME–PME 0.19; ALE–PLE 0.24; clypeus AME 0.27; clypeus ALE 0.29. Leg formula: 2143. Measurements of palp and legs: palp: 7.80 (2.60, 1.10, 1.60, 2.50); I: 28.90 (7.50, 2.90, 8.40, 7.70, 2.40); II: 32.65 (8.80, 3.15, 9.70, 8.50, 2.50); III: 25.60 (7.00, 2.50, 7.50, 6.70, 1.90); IV: 27.30 (7.50, 2.50, 7.60, 7.50, 2.20). Spination: palp: 131, 101, 121; legs: Fe I–III 323, IV 321; Pa I–III 101, IV 001; Ti I–IV 2126; Mt I–II 2026, III–IV 3036. Cheliceral furrow with 3 anterior and 4 posterior teeth.

Colouration in ethanol: Prosoma yellowish-brown. Sternum yellowish-white with brown margin. Opisthosoma dorsal and ventral part yellowish-grey. Prosoma and opisthosoma with strong brown setae. Chelicerae yellowishbrown. Palps and legs yellowish-brown.

Palp as in diagnosis. Embolic apophysis bent at right angle and S-shaped in prolateral view. Embolic tip narrow and tapering. Conductor arising from 1-o’clock-position. Spermophore wider than embolus and slightly curved in ventral view. dRTA narrow and longer than vRTA, short, tapering and medially with short bulge in retrolateral view. vRTA developed as stout hump in retrolateral view.

Description: Female (paratype): Total length 13.00; prosoma 6.20 long, 5.40 wide, anterior width of prosoma 3.20; opisthosoma 6.80 long, 4.40 wide. Eye measurements: AME 0.16; ALE 0.20; PME 0.11; PLE 0.21; AME–AME 0.19; AME–ALE 0.17; PME–PME 0.41; PME–PLE 0.44; AME–PME 0.34; ALE–PLE 0.28; clypeus AME 0.39; clypeus ALE 0.45. Leg formula: 2143. Measurements of palp and legs: palp: 9.90 (2.60, 1.50, 2.40, 3.40); I: 30.50 (8.30, 3.50, 8.80, 7.60, 2.30); II: 33.70 (9.60, 3.90, 9.90, 7.90, 2.40); III: 29.00 (8.30, 3.20, 8.20, 7.00, 2.30); IV: 30.40 (8.60, 3.00, 8.50, 7.90, 2.40). Spination: palp: 131, 101, 2121, 1014; legs: Fe I–III 323, IV 321; Pa I–III 101, IV 001; Ti I–IV 2126; Mt I–II 0004, III 2016, IV 3036. Cheliceral furrow with 3 anterior and 4 posterior teeth.

Colouration in ethanol: Prosoma yellowish-brown, anterior part light red. Sternum yellowish-white with brown margin. Opisthosoma dorsal and ventral part yellowish-grey. Chelicerae reddish-brown. Palps and legs yellowishbrown.

Copulatory organ as in diagnosis. Epigynal field wider than long without anterior bands and slit sensilla. Lateral lobes fused. Fusion bubbles arranged medially at a longitudinal line on epigyne. Internal duct system nearly as long as wide. Glandular appendages extending posteriorly from posterior half of internal duct system, slightly curved. Spermathecae fused along median line. Anterior part nearly as wide as posterior part. Fertilization ducts arising postero-laterally.

Distribution: Known only from the type locality.

Figures

FIGURES 34 a–e. Sinopoda phom spec. nov., holotype male and paratype female from Phra Dhat Cave. a–c left male palp (a prolateral, b ventral, c retrolateral); d Epigyne, ventral; e Vulva, dorsal. Arrow on bulge of dRTA.