Patu damtao S. Li & Lin, 2021

Li, Ya, Li, Shuqiang & Lin, Yucheng, 2021, Taxonomic study on fourteen symphytognathid species from Asia (Araneae, Symphytognathidae), ZooKeys 1072, pp. 1-47 : 1

Patu damtao S. Li & Lin sp. nov.

Figures 4 , 23

Type material.

Holotype ♂ (IZCAS-Ar 41037) Vietnam: Dam Tao National Park (21.47200°N, 105.63644°E; 1023 m alt.), 31.X.2012, H. Zhao and Z. Chen leg.

Etymology.

The specific epithet derives from the name of the type locality; noun in apposition.

Diagnosis.

Patu damtao sp. nov. can be distinguished from other congeners, with the exception of P. catba sp. nov., by having a conductor and lacking a tegular process (Fig. 4D ). It is similar to P. catba sp. nov. in the shape of the male palp, but it differs by lacking a median apophysis, the embolus has more coils and is 4 × the length of the conductor vs. having a median apophysis and an embolus with fewer coils that is ca. 2 × the length of the conductor (Figs 4D and E vs. 1D and E).

Description.

Male (IZCAS-Ar 41037). Total length 0.60. Carapace 0.24 long, 0.28 wide, 0.32 high. Clypeus 0.16 high. Sternum 0.20 long, 0.20 wide. Abdomen 0.40 long, 0.36 wide, 0.44 high. Length of legs: I 0.84 (0.24, 0.10, 0.18, 0.14, 0.18); II 0.68 (0.20, 0.10, 0.12, 0.10, 0.16); III 0.52 (0.12, 0.08, 0.10, 0.10, 0.12); IV 0.64 (0.16, 0.10, 0.14, 0.10, 0.14).

Somatic characters (Fig. 4A-C ). Colouration: carapace dark, darker in thoracic centre, clypeus light grey. Chelicerae, endites and labium dark. Sternum black. Legs dim yellow, with black pigmentation, tibia darkest. Abdomen charcoal grey, dorsally lighter, covered with light dots. Prosoma: carapace wider than long, laterally triangular. Eyes with ocular mound, PME> ALE> PLE, ALE protruded, PER recurved. Chelicerae anteriorly plump. Labium semi-lunar. Sternum smooth, slightly plump. Legs: densely covered with bristles on tibia, metatarsi and tarsi. Patella with 1 seta disto-dorsally. Tibia with 1 subproximal seta dorsally. Tibia II with 2 adnate clasping spines. Opisthosoma: dorsally globular, laterally ovoid. Spinnerets darkish.

Palp (Fig. 4D and E ): relatively large, ~ ½ size of carapace. Patella short, about half of tibial length. Tibia flat and lamellar. Cymbium translucent, surrounding the bulb prolaterally. Bulb elongate ovoid. Tegulum smooth, cup-shaped, apically truncated. Conductor strongly sclerotised, long, spatulate, ~ ¼ length of embolus, protruded from dorsal base of tegulum, basally narrow and distally sharp. Embolus long, ca. 4 × length of conductor, ribbon shaped, protruded below the conductor, coiled into ~ 1¼ loops at the apex of tegulum.

Female. Unknown.

Distribution.

Vietnam (Fig. 23 ).

Figures

Figure 4. Patu damtao sp. nov. A male habitus, dorsal B male habitus, ventral C male habitus, lateral D male palp, prolateral E male left palp, retrolateral. Abbreviations: Co = conductor; Cy = cymbium; E = embolus; Pa = patella; T = tegulum; Ti = tibia; TS = male clasping spines on tibia II. Scale bars: 0.50 (A-C); 0.10 (D, E).

Figure 23. Distribution records of fourteen species of genera Patu, Kirinua gen. nov. and Swilda gen. nov. in Asia 1 P. catba sp. nov. 2 P. dakou sp. nov. 3 P. damtao sp. nov. 4 P. jiangzhou sp. nov. 5 P. jidanweishi 6 P. nagarat sp. nov. 7 P. nigeri 8 P. putao sp. nov. 9 P. qiqi 10 P. xiaoxiao 11 K. maguai sp. nov. 12 K. yangshuo sp. nov. 13 S. longtou 14 S. spinathoraxi.