Sinopoda bispina, 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 : 13-14

Sinopoda bispina spec. nov.

Figs 5 a–c, 55 m–n

Type material: Holotype: male (SD 1317), MYANMAR: Southern Shan State: Pin Leung, Cave Pagoda near Thibao , N20°04’10’’, E96°46’13’’, 1480 m, 16 June 2017, S. Huber & P. Schwendinger leg. ( SMF).

Etymology: The species name is a compound word and derived from the Latin word “bi” meaning “two” and the Latin word “spina” meaning “thorn”, referring to the two thorn-shaped parts of the embolus and the embolic apophysis; noun in apposition.

Diagnosis: Males of S. bispina spec. nov. are similar to those of S. mamillata in having embolus tip and embolic apophysis with small thorn-shaped apophyses distally. They can be distinguished from the latter species by 1. conductor arising from 1 o’clock position and tip rounded in ventral view (arising from 2 o’clock position and tip tapering in ventral view in S. mamillata ), 2. bigger body size reaching 15.10 (9.10 in S. mamillata ), 3. tegulum with distal part nearly as wide as proximal part (distal part narrower than proximal part in S. mamillata ) and 4. RTA with dRTA not curved in ventral view and slightly longer than vRTA, vRTA short and rounded in retrolateral view (dRTA about twice the size of vRTA and curved, vRTA long and tapering in S. mamillata ).

Description: Male (holotype): Total length 15.10; prosoma 7.20 long, 6.50 wide, anterior width of prosoma 3.40; opisthosoma 7.90 long, 4.80 wide. Eye measurements: AME 0.35; ALE 0.52; PME 0.39; PLE 0.53; AME– AME 0.23; AME–ALE 0.05; PME–PME 0.32; PME–PLE 0.43; AME–PME 0.41; ALE–PLE 0.47; clypeus AME 0.46; clypeus ALE 0.42. Leg formula: 2143. Measurements of palp and legs: palp: 11.85 (3.90, 1.80, 2.15, 4.00); I: 43.50 (10.90, 4.20, 12.20, 12.70, 3.50); II: 47.60 (12.30, 4.40, 13.50, 13.90, 3.50); III: 37.80 (10.30, 3.80, 10.50, 10.30, 2.90); IV: 40.80 (10.90, 3.50, 11.10, 12.00, 3.30). Spination: palp: 131, 101, 2111; legs: Fe I–III 323, IV 331/321; Pa I–III 101, IV 100; Ti I–IV 2326; Mt I–II 1014, III 2016, IV 3036. Cheliceral furrow with 3 anterior and 5 posterior teeth.

Colouration in ethanol: Prosoma yellowish-brown, posteriorly with brown stripe, lateral part with brown stripes. Sternum yellow. Prosoma margin and chelicerae hairy. Opisthosoma brown, anterior and median part with white spots, laterally and medially with brown dots, median part with four brown dots, posteriorly dark brown, ventrally yellowish-grey. Chelicerae reddish-brown. Palps yellowish-brown. Legs yellowish-brown, dorsally strong hirsute.

Palp as in diagnosis. Embolus slightly curved, shorter than embolic apophysis, distal part with long, thornshaped apophysis. Embolic apophysis long and curved, distal part with thorn-shaped apophysis. Conductor long and curved. Spermophore slightly sinuous in ventral view. Tegulum median part wider than proximal part. vRTA shorter than dRTA. dRTA long, in ventral view slender, in retrolateral view short with proximal part wide.

Female: Unknown.

Distribution: Known only from the type locality.

Figures

FIGURES 5 a–c. Sinopoda bispina spec. nov., holotype male and paratype female from Pin Leung. a–c left male palp (a prolateral, b ventral, c retrolateral).