Sinopoda mat, 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 : 45-46

Sinopoda mat spec. nov.

Figs 29 a–b, 60 i–j

Type material: Holotype: female ( SD 1148 ), VIETNAM: Cao Bang Province: Lake Tahng Hen , pestera tunnel, TH06, floor, near station 21, N22°46’46.8’’, E106°18’49.6’’, 10 March 2012, S. E. Marin leg., field number 340/12- ( SMF).

Additional material: 1 juvenile with same data as for holotype ( SMF) .

Etymology: The species name is derived from the Vietnamese word “mắt” meaning “eye” and refers to the fact that all eight eyes are developed but reduced in size; noun in apposition.

Diagnosis: Females of S. mat spec. nov. are similar to those of S. tham in having elevations medially on bent posterior part of spermathecae and to those of S. semicirculata in having elevations medially on bent posterior part of spermathecae and the lateral endings of the epigynal pockets extending anteriorly beyond visible part of lobal septum. They can be distinguished from S. tham by 1. lobal septum with median part wider than anterior part (median part narrower than anterior part in S. tham ), 2. epigynal pockets running from latero-anterior to medio-posterior (from latero-posterior to medio-anterior in S. tham ), 3. posterior part of lateral lobes completely fused (with median indentation in S. tham ), 4. glandular appendages wide (narrow in S. tham ), 5. elevations wider than long (nearly as long as wide in S. tham ) and 6. fertilization ducts wide (slender in S. tham ); from S. semicirculata by 1. reduced eyes (not reduced in S. semicirculata ), 2. spermathecae completely fused along median line and posterior part bent laterally at right angle (only partly fused along median line and posterior part bent latero-ventrally in S. semicirculata ) and 3. elevations spherical (not spherical in S. semicirculata ).

Description: Female (holotype): Total length 13.20; prosoma 6.10 long, 5.10 wide, anterior width of prosoma 3.30; opisthosoma 7.10 long, 3.90 wide. Eye measurements: AME 0.12; ALE 0.14; PME 0.11; PLE 0.17; AME–AME 0.23; AME–ALE 0.19; PME–PME 0.43; PME–PLE 0.52; AME–PME 0.36; ALE–PLE 0.55; clypeus AME 0.50; clypeus ALE 0.48. Leg formula: 2143. Measurements of palp and legs: palp: 9.60 (2.90, 1.50, 2.20, 3.00); I: 26.60 (7.30, 3.10, 7.70, 6.40, 2.10); II: 29.50 (8.40, 3.30, 8.60, 6.90, 2.30); III: 25.10 (7.10, 2.90, 7.10, 6.00, 2.00); IV: 26.50 (7.20, 2.60, 7.40, 7.00, 2.30). Spination: palp: 131, 101, 2121, 1014; legs: Fe I–III 323, IV 331; Pa I–IV 001; Ti I–III 2026, IV 2126; Mt I–II 0014, III 2026, IV 3036. Cheliceral furrow with 3 anterior and 4 posterior teeth.

Colouration in ethanol: Prosoma yellowish-red, antero-laterally yellowish-brown. Sternum yellow with brown margins. Opisthosoma yellowish-white, ventral part medially yellowish-white, laterally yellow. Chelicerae reddishbrown. Palps yellowish-brown; Ti and Mt reddish-brown. Legs yellow; Mt and Ta yellowish-brown.

Copulatory organ as in diagnosis. Epigynal field nearly as wide as long with two anterior bands and two slit sensilla. Internal duct system wider than long. Glandular appendages extending only in anterior half of internal duct system, slightly curved. Fertilization ducts thick and short.

Male: Unknown.

Distribution: Known only from the type locality.

Figures

FIGURES 29 a–b. Sinopoda mat spec. nov., holotype female from Lake Tahng Hen, copulatory organ. a Epigyne, ventral; b Vulva, dorsal.