Swilda spinathoraxi, (Lin & Li, 2009)

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

Swilda spinathoraxi, (Lin & Li, 2009) comb. nov.

Figures 21 , 22 , 23

Patu spinathoraxi Lin & Li, 2009: 60, figs 14A, B, 15A, B, 16A-E, 17A and B (♂♀).

Type material.

Holotype ♀ (IZCAS) and paratypes 15♂ 19♀ (IZCAS) China: Yunnan Province, Mengla County, Menglun Town, Rubber Plantation near Menglun Nature Reserve (21.90000°N, 101.26667°E; 569 m alt.), 1-15.V.2007, G. Zheng leg.; 2♂ 2♀ (IZCAS): Yunnan Province, Mengla County, Menglun Town, Menglun Nature Reserve, rubber-tea plantation (21.91667°N, 101.26667°E; 572 m alt.), 5-12.I.2007, G. Zheng leg.; 2♀ (IZCAS) same locality, secondary seasonal tropical rainforest (21.90000°N, 101.28333°E; 612 m alt.), 10.VIII.2007, G. Zheng leg.

Other material examined.

1♂ 1♀ (NHMSU-HA082) China: Yunnan Province, Mengla County, Menglun Town, Xishuangbanna Tropical Botanic Garden , in forest of Paramichelia baillonii (21.91207°N, 101.26836°E; 527 m alt.), 2.X.2017, Y. Lin and Y. Li leg. ; 1♂ (NHMSU-HA082) and 1♀ (NHMSU-HA082) used for sequencing, GenBank : MW970238 and MW970237 , same data as for preceding ; 1♂ (NHMSU-HA060): Yunnan Province, Mengla County, Menglun Town, Xishuangbanna Tropical Botanic Garden , Rubber-Tea plantation (21.91077°N, 101.27095°E, 572 m alt.), 8-12.VIII.2006, G. Zheng leg. ; 1♀ (NHMSU-HA076): Yunnan Province, Xishuangbanna Natural Reserve , monsoon forest off greenstone road, in the bamboo forest (21.90707°N, 101.28183°E, 607 m alt.), 24.V.2013, Z. Zhao and Z. Chen leg.

Diagnosis.

see diagnosis for S. longtou.

Description.

Male (NHMSU-HA082). Total length 0.52. Carapace 0.28 long, 0.32 wide, 0.32 high. Clypeus 0.14 high. Sternum 0.20 long, 0.20 wide. Abdomen 0.40 long, 0.32 wide, 0.36 high. Length of legs: I 1.00 (0.28, 0.12, 0.24, 0.16, 0.20); II 0.78 (0.18, 0.12, 0.18, 0.12, 0.18); III 0.58 (0.12, 0.08, 0.12, 0.10, 0.16); IV 0.80 (0.20, 0.12, 0.18, 0.12, 0.18).

Somatic characters (Fig. 21A-C ). Colouration: carapace brown, sternum light brown ventrally. Legs light brown. Abdomen pale at middle, light brown laterally and ventrally. Prosoma: PME separated by ~ ⅓ their diameter. ALE protruded, PER slightly recurved. Clypeus concave, smooth. Sternum surface rugose, pitted, slightly plump. Legs: with long disto-dorsal spine on patella; 2 long dorsal spines on tibiae I and II, 1 on tibia III and IV. Opisthosoma: round dorsally, ovoid laterally, extended posteriorly beyond spinnerets, abdominal surface with sparse, long setae, with a postero-lateral scutum. Spinnerets light brown, surrounded by an annular plate.

Palp (Fig. 22A and B ): bulb oblate, femur plump. Cymbium broad, with needle-like apical process and nodular distal one. Tegulum nearly rectangular. Median apophysis small, tubercle-like. Conductor long, wide basally, narrow mesally and distally. Embolus long, jutting out from prolateral margin of tegulum, curved upwards, extended beneath distal part of cymbium.

Female (NHMSU-HA076). Total length 0.80. Carapace 0.32 long, 0.32 wide, 0.28 high. Clypeus 0.12 high. Sternum 0.20 long, 0.20 wide. Abdomen 0.56 long, 0.56 wide, 0.60 high. Length of legs: I 0.84 (0.24, 0.12, 0.20, 0.12, 0.16); II 0.72 (0.18, 0.10, 0.16, 0.12, 0.16); III 0.60 (0.16, 0.10, 0.12, 0.10, 0.12); IV 0.78 (0.20, 0.10, 0.20, 0.12, 0.16).

Somatic characters (Fig. 21D-F ). Colouration: prosoma and legs as in male. Abdomen pale dorsally and light grey ventrally. Carapace modified as in male. Cephalic part lower than in male. Legs: the spination same as in male, except tibia II lacking clasping spine. Opisthosoma: globose, with sparse, long setae, without posterolateral scutum. Other modifications same as in male.

Epigyne (Fig. 22C-E ): sclerotised, cuticle weakly rugose. Epigynal posteromargin slightly protruded. Spermathecae separated by ca. 1.5 diameters. Copulatory openings adjacent. Copulatory ducts long, encircle spermathecae, forming ~ ¾ loop from posterior to anterolateral connecting with the inner middle margins of spermathecae. Fertilisation ducts short, starting at postero-lateral margin of spermathecae, extending to lateral of posterior epigynal margin.

Distribution.

China (Yunnan) (Fig. 23 ).

Figures

Figure 21. Swilda spinathoraxi A male habitus, dorsal B male habitus, ventral C male habitus, lateral D female habitus, dorsal E female habitus, ventral F female habitus, lateral. Abbreviation: TS = male clasping spines on tibia II. Scale bars: 0.50 (A-F).

Figure 22. Swilda spinathoraxi A male palp, prolateral B male palp, retrolateral C epigyne, ventral D vulva, ventral E vulva, dorsal. Abbreviations: CA = cymbial apophysis; CD = copulatory ducts; Co = conductor; CO = copulatory opening; Cy = cymbium; CP 1 = proximal cymbial process; CP 2 = distal cymbial process; E = embolus; FD = fertilisation ducts; Fe = femur; MA = median apophysis; Pa = patella; S = spermathecae; T = tegulum; Ti = tibia. Scale bars: 0.10 (A-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.