Sinopoda brevis, Zhong & Jäger & Chen & Liu, 2019

Zhong, Yang, Jäger, Peter, Chen, Jian & Liu, Jie, 2019, Taxonomic study of Sinopoda spiders from China (Araneae: Sparassidae), Zootaxa 4607 (1), pp. 1-81 : 12-19

Sinopoda brevis sp. nov.

Figs 10–12 , 62

urn:lsid:zoobank.org:act:76900D08-18F7-41CC-B115-99196EDDE5E3

Type material. Holotype male: CHINA: Liaoning Province: Dalian City, Daheishan Scenic Area , 39.09°N, 121.78°E, 290 m, footpath, 25 May 2017, Y. Zhong & Z.C. Li leg. (CBEE). Paratypes: 7 males and 16 females ( CBEE) , 1 male and 1 female ( SMF) , with same data as holotype ; 1 male, 2 females, Zhuanghe City , Xidashan Scenic Area, 39.70°N, 122.95°E, 53 m, native forest, 3 July 2016, L. Y. Wang & Z.S. Wu leg. ( CBEE) .

Etymology. The specific name is derived from the Latin adjective brevis , -is, - e, meaning “short” referring to the embolus tip shorter than the embolic apophysis.

Diagnosis. Males of S. brevis sp. nov. may be recognised by the following combination of characters: 1. Embolus tip distinctly shorter than the embolic apophysis; 2. dRTA wide, with tip slender and finger-shaped in lateral view. Females of S. brevis sp. nov. are similar to those of Sinopoda horizontalis Zhong, Cao & Liu, 2017 ( Zhong et al. 2017: figs 5A–B, 6A–B) in having the horizontal anterio-lateral margins of lateral lobes and posterior margin of epigyne distinctly bilobate, but differ from S. horizontalis in the glandular appendages of vulva being as wide as posterior parts of spermathecae, with slender ends (slightly wider, with swollen ends in S. horizontalis ).

Description. Male (holotype): Measurements: PL 6.9, PW 6.4; AW 3.0; OL 8.1, OW 4.7. Eyes: AME 0.26, ALE 0.36, PME 0.27, PLE 0.40, AME–AME 0.24, AME–ALE 0.12, PME–PME 0.38, PME–PLE 0.60, AME–PME 0.41, ALE–PLE 0.40, CH AME 0.21, CH ALE 0.26. Spination: Palp: 131, 101, 2121; Fe: I–III 323, IV 331; Pa: I–IV 101; Ti: I–IV 2326; Mt: I–III 1014, IV 3036. Measurements of palp and legs: Palp 11.1 (4.3, 2.0, 1.9, –, 2.9); I 35.5 (9.7, 2.5, 9.7, 10.5, 3.1); II 39.2 (10.7, 3.0, 11.0, 11.4, 3.1); III 31.3 (8.7, 2.4, 6.9, 10.1, 3.2); IV 33.6 (9.5, 2.4, 8.5, 10.2, 3.0). Leg formula: II-I-IV-III. Cheliceral furrow with 3 anterior, 4 posterior teeth and ca. 30 denticles.

Palp as in diagnosis. Cymbium longer than tibia. Embolus arising from direction of tegulum at 6:30, with tip only slightly bent. Tegulum covering proximal part of embolus. Spermophor slightly curved in ventral view. RTA arising medially from tibia, with distinct brush of stiff setae, vRTA roughly rectangular in retrolateral view. ( Figs 10 A–C, 11A–D).

Colouration in ethanol. Dorsal prosoma yellowish-brown, with yellow submarginal transversal light band posteriorly. Fovea brown, distinctly marked. Labium and gnathocoxae yellowish-brown, both with distal parts lighter. Sternum yellowish-brown, with margin deep brown. Chelicerae deep reddish-brown. Legs yellowish-brown with dark spots. Dorsal opisthosoma yellowish-brown, covered by grey hairs, with three pairs of dark patches laterally and one dark transversal band above spinnerets. Ventral opisthosoma yellowish-brown ( Figs 11 E–F).

Female: Measurements: PL 6.9, PW 6.6; AW 3.9; OL 10.2, OW 6.9. Eyes: AME 0.31, ALE 0.45, PME 0.33, PLE 0.48, AME–AME 0.30, AME–ALE 0.09, PME–PME 0.40, PME–PLE 0.72, AME–PME 0.42, ALE–PLE 0.47, CH AME 0.15, CH ALE 0.20. Spination: Palp: 131, 0 0 1, 2121, 1014; Fe: I–III 323, IV 331; Pa: I–IV 101; Ti: I–III 2026, IV 2226; Mt: I–II 0 0 0 4, III 2014, IV 3036. Measurements of palp and legs: Palp 9.1 (2.7, 1.1, 2.2, –, 3.1); I 26.7 (7.4, 2.8, 7.4, 6.9, 2.2); II 29.3 (8.5, 2.8, 8.2, 7.5, 2.3); III 24.5 (7.7, 2.0, 6.7, 5.9, 2.2); IV 26.2 (7.3, 2.1, 7.0, 7.4, 2.4). Leg formula: II-I-IV-III. Cheliceral furrow with 3 anterior, 4 posterior teeth and ca. 32 denticles.

Copulatory organ as in diagnosis. Epigynal field wider than long, with thin anterior bands and one slit sensillum on each side of the epigynal field. Lobal septum narrow. Lateral lobes sutured, with median incision, posterior humps medio- posteriad. Fertilization ducts arising posterio-laterally. Membranous sac transversally subsquared and expandable ( Figs 10 D–E, 12A–B).

Colouration in ethanol. As in males ( Figs 12 C–D).

Distribution. China (Liaoning) ( Fig. 62 ).

Figures

FIGURES 10. Sinopoda brevis sp. nov., holotype male and paratype female from Daheishan Forest Park. A–C Left male palp (A prolateral, B ventral, C retrolateral); D Epigyne, ventral; E Vulva, dorsal.AB—anterior bands, C—conductor, dRTA—dorsal retrolateral tibial apophysis, E—embolus, EA—embolic apophysis, FD—fertilization duct, GA—glandular appendage, LLlateral lobes, LS—lobal septum, MS—membranous sac, PP—posterior part of spermathecae, SP—spermophor, SS—slit sensillum, ST—subtegulum, T—tegulum, vRTA—ventral retrolateral tibial apophysis. Scale bars: 0.5 mm.

FIGURES 11. Sinopoda brevis sp. nov., holotype male from Daheishan Forest Park. A–C Left male palp (A prolateral, B ventral, C retrolateral); D Left male palpal tibia, retrolateral; E–F Male habitus (E dorsal, F ventral). Scale bars: A–D 0.5 mm, E–F 2 mm.

FIGURES 12. Sinopoda brevis sp. nov., paratype female from Daheishan Forest Park. A Epigyne, ventral; B Vulva, dorsal; C–D Female habitus (C dorsal, D ventral). Scale bars: A–B 0.5 mm; C–D 2 mm.

FIGURES 62. Locality records for twenty-two species of Sinopoda: 1. S. abstrusa sp. nov. (Xizang); 2. S. aequalis sp. nov. (Henan); 3. S. apiculiformis sp. nov. (Hunan); 4, 5. S. brevis sp. nov. (Liaoning); 6, 7. S. changde sp. nov. (Hunan, Shaanxi); 8. S. columnaris sp. nov. (Guizhou); 9. S. curva sp. nov. (Guangxi); 10. S. dehiscens sp. nov. (Hunan); 11. S. erromena sp. nov. (Hunan); 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24. S. globosa Zhang et al., 2015 (Guizhou, Henan, Shaanxi, Sichuan, Yunnan); 25, 26. S. improcera sp. nov. (Yunnan); 27. S. lata sp. nov. (Yunnan); 28. S. liui Zhong et al., 2017 (Fujian); 14, 29, 30. S. longiducta Zhang et al., 2015 (Sichuan, Yunnan); 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41. S. longshan Yin et al., 2000 (Guizhou, Hubei, Hunan); 42, 43. S. luyui sp. nov. (Sichuan, Gansu); 44, 45. S. ovata sp. nov. (Chongqing); 14, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56. S. pengi Song & Zhu, 1999 (Yunnan); 57. S. pyramidalis sp. nov. (Sichuan); 58, 59. S. tumefacta sp. nov. (Yunnan); 14, 26, 29, 30. S. yaanensis sp. nov. (Sichuan, Yunnan); 60. S. yanlingensis sp. nov. (Hunan).