Kirinua maguai 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

Kirinua maguai S. Li & Lin sp. nov.

Figures 15 , 16 , 23

Type material.

Holotype ♂ (IZCAS-Ar 41046) and paratype 1♀ (IZCAS-Ar 41047) China: Guangxi Zhuang Autonomous Region, Hechi City, Fengshan County, Pingle Township, Maguai Cave (24.43194°N, 106.96737°E, 618 m alt.), 23.III.2015, Y. Li and Z. Chen leg.; 1♀ (NHMSU-HA008) used for sequencing, GenBank: MW970250, same data as for preceding.

Other material examined.

1♀ (NHMSU-HA005) China: Guangxi Zhuang Autonomous Region, Hechi City , Fengshan County, Pingle Township , Sanmen Cave (24.43163°N, 106.97124°E, 659 m alt.), 23.III.2015, Y. Li and Z. Chen leg. ; 1♀ (NHMSU-HA011) same Province and County, Fengcheng Township , nameless cave (24.31023°N, 107.00213°E, 402 m alt.), 24.III.2015, Y. Li and Z. Chen leg. ; 1♂ prosoma (NHMSU-HA016) same region, Hechi City, Donglan County, Bala Township , nameless cave (24.44368°N, 107.34726°E, 385 m alt.), 18.III.2015, Y. Li and Z. Chen leg.

Etymology.

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

Diagnosis.

Males of the new species can be distinguished from those of K. yangshuo sp. nov. by the shorter, distally blunt embolus vs. a distally sharp, longer embolus (ca. 2 × length of the former) and by a blunt cymbial apophysis vs. a truncated cymbial apophysis (Figs 16A and 18A ). The female differs from that of K. yangshuo sp. nov. by the small atrium without a knob-shaped lateral hump vs. a large atrium with a knob-shaped lateral hump and by the shorter, copulatory duct coiled less than 2 times vs. the longer copulatory duct coiled more than 5 times (Figs 16F-G and 18E-F ).

Description.

Male (IZCAS-Ar 41046). Total length 0.64. Carapace 0.32 long, 0.28 wide, 0.32 high. Clypeus 0.10 high. Sternum 0.20 long, 0.16 wide. Abdomen 0.44 long, 0.44 wide, 0.52 high. Length of legs: I 1.08 (0.30, 0.12, 0.24, 0.18, 0.24); II 0.98 (0.30, 0.12, 0.20, 0.14, 0.22); III 0.74 (0.20, 0.10, 0.14, 0.16, 0.14); IV 0.94 (0.32, 0.10, 0.20, 0.12, 0.20).

Somatic characters (Fig.. 15A-C and G-I). Colouration: carapace pale yellow, with irregular darker patches at thoracic area and margins. Mouthparts pale brown. Sternum light grey. Legs pale yellow. Abdomen pale. Prosoma: carapace longer than wide, as long as high. ALE largest, PME smallest, PER slightly recurved. Clypeus slightly concave. Clypeal notches separated by width of PME (Fig. 15G ). Chelicerae covered with sparse, long setae anteriorly. Endites longer than wide. Labium wider than long, with shallow notch on anterior margin. Sternum slightly plump. Legs: each patella with 1 disto-dorsal seta, tibia with 2 dorsal setae, 1 subproximal and 1 subdistal, metatarsus I with 1 subproximal dorsal seta. Opisthosoma: round in dorsal view and ovoid in lateral view, with sparse, long setae, posteriorly extended beyond spinnerets. Spinnerets light yellow.

Palp (Fig.. 16A-C): strongly sclerotised. Femur and patella swollen, tibia longer than femur or patella, with a small retrolateral basal tubercle. Cymbium large, with 1 hook-like process, 1 nodular process with few short setae and 1 long, finger-like distal cymbial apophysis. Bulb flattened. Median apophysis strip-shaped, located below cymbial apophysis. Rugose tegulum with triangular apical process. Embolus stiff, shorter than median apophysis, slightly bent at middle, blunt distally.

Female (IZCAS-Ar 41047). Total length 0.64. Carapace 0.32 long, 0.32 wide, 0.28 high. Clypeus 0.10 high. Sternum 0.20 long, 0.20 wide. Abdomen 0.44 long, 0.40 wide, 0.48 high. Length of legs: I 1.10 (0.34, 0.14, 0.22, 0.18, 0.22); II 0.96 (0.28, 0.12, 0.20, 0.16, 0.20); III 0.78 (0.24, 0.10, 0.12, 0.14, 0.18); IV 0.92 (0.26, 0.12, 0.20, 0.14, 0.20).

Somatic characters (Fig.. 15D-F). Colouration: same as in male. Prosoma: carapace nearly pear-shaped in dorsal view. Cephalic part elevated, lower than in male. PER slightly procurved. Legs: spination of each leg as in male. Opisthosoma: as in male, except for wrinkled abdominal cuticle that may be caused by ethanol dehydration.

Epigyne (Fig.. 16D-G) internal structures faintly visible via the translucent epigynal cuticle. Scape barely visible. Vulva relatively complex. Spermathecae subglobose, close to posterior margin, separated by about 2 diameters. Fertilisation duct thinner than copulatory duct, located dorso-posteriorly on copulatory duct, originates from posteromedial margin of spermatheca, curved outwards at sides of atrium, then extended downwards (Fig. 16G ).

Distribution.

China (Guangxi) (Fig. 23 ).

Figures

Figure 15. Kirinua maguai sp. nov. A male habitus, dorsal B male habitus, ventral C male habitus, lateral D female habitus, dorsal E female habitus, ventral F female habitus, lateral G male prosoma, anterior H male prosoma, lateral I male chelicerae, anterior. Abbreviation: TS = male clasping spines on tibia II. Scale bars: 0.50 (A-F); 0.20 (G, H); 0.10 (I).

Figure 16. Kirinua maguai sp. nov. A male palp, prolateral B male palp, ventral C male palp, retrolateral D epigyne, ventral E epigyne, lateral F vulva, ventral G vulva, dorsal. Abbreviations: Atr = atrium; AP = apical process; 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-G).

Figure 18. Kirinua yangshuo sp. nov. A male palp, prolateral B male palp, retrolateral C epigyne, ventral D epigyne, lateral E vulva, ventral F vulva, dorsal. Abbreviations: Atr = atrium; AP = apical process; 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; MA = median apophysis; S = spermathecae; T = tegulum. Scale bars: 0.10 (A-F).

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.