Synagelides longus Song & Chai, 1992

Wang, Cheng, Mi, Xiao-Qi, Irfan, Muhammad & Peng, Xian-Jin, 2020, On eight species of the spider genus Synagelides Strand, 1906 from China (Araneae: Salticidae), European Journal of Taxonomy 724, pp. 1-33 : 16-19

Synagelides longus Song & Chai, 1992

Figs 9–10

Synagelides longus Song & Chai, 1992: 82 , fig. 10a–c (d = ♀).

Synagelides longus – Song & Li 1997: 441, fig. 52a–c (♀). — Song et al. 1999: 561, fig. 319h (♀).

Differential diagnosis

Synagelides longus resembles S. palpalis Żabka, 1985 ( Żabka 1985: figs 573–580; Fig. 17D ) in the general shape of the copulatory organs and habitus, but differs in: 1) retrolateral tibial apophysis is shorter than half the cymbial length, slightly broadened medially and curved apically in retrolateral view

in S. longus ( Fig. 9B ), whereas longer than half the cymbial length, tapered and straight in S. palpalis ( Fig. 17D ); 2) epigynal hood is about two times wider than long in S. longus ( Fig. 10A ), whereas about two times longer than wide in S. palpalis ( Żabka 1985: fig. 577).

Material examined

CHINA • 4 ♂♂, 4 ♀♀; Guizhou Province, Jiangkou County, Taiping Township, Kuaichang Village ; 27°53.10′ N, 108°48.85′ E; ca 540 m a.s.l.; 8–10 May 2013, Xiaoqi Mi et al. leg.; TRU-Salticid-0020 to 0027 .

Description

Male (TRU-Salticid-0020)

Total length 4.44. Carapace 1.93 long, 1.48 wide. Abdomen 2.48 long, 1.04 wide. Eye sizes and interdistances: AME 0.44, ALE 0.24, PLE 0.22, AREW 1.37, PERW 1.44, EFL 1.11. Legs: I 7.08 (2.20, 3.95, 0.56, 0.37), II 3.75 (1.15, 1.41, 0.80, 0.39), III 3.93 (1.12, 1.41, 1.01, 0.39), IV 6.06 (1.49, 2.84, 1.32, 0.41). Carapace ( Fig. 10D ) stippled, red-brown, darker anteriorly, covered with sparse hairs. Fovea oval, hollowed. Chelicerae ( Fig. 10G ) yellow, with two promarginal teeth and one retromarginal tooth fissident with two cusps. Endites, labium, and sternum ( Fig. 10E ) yellow. Legs pale to red-yellow. Spination of leg I ( Fig. 10H ): femur v2-2-2-2; metatarsus v0-1-1. Abdomen ( Fig. 10 D–E) elongated, slightly contracted medially; dorsum brown, pale median-laterally and dark posteriorly, with two pairs of muscle depressions and herringbone stripes; venter pale brown to dark brown, with dots posteriorly. Palp ( Fig. 9 A–F): patella swollen; tibia wider than long; retrolateral tibial apophysis L-shaped and sclerotized, slightly broadened medially and curved apically; cymbium with dorsal and prolateral apophyses; bulb inflated, with sperm duct extending along margin; embolus coiled spirally, apically extending above the cymbium apex; median apophysis strongly sclerotized, consisting of square and trapeziform parts in retrolateral view.

Female (TRU-Salticid-0024)

Total length 4.48. Carapace 1.89 long, 1.41 wide. Abdomen 2.41 long, 1.23 wide. Eye sizes and interdistances: AME 0.44, ALE 0.25, PLE 0.22, AREW 1.38, PERW 1.47, EFL 1.07. Legs: I 4.96 (1.54, 2.66, 0.44, 0.32), II 3.22(1.02, 1.20, 0.68, 0.32), III 3.51 (1.05, 1.27, 0.85, 0.34), IV 4.81 (1.37, 1.90, 1.20, 0.34). Carapace ( Fig. 10F ) similar to that of male except paler. Abdomen ( Fig. 10F ) elongated, lacking contraction; dorsum brown, with four transverse white patches median-posteriorly, covered by white and brown hairs. Epigyne ( Fig. 10 A–C): almost as long as wide, with a pair of anterior arcuated rims and a bell-shaped anterior hood slightly wider than long; atrium large, separated by a narrow median septum; copulatory openings located antero-laterally; copulatory ducts curved anteriorly and then descending median-posteriorly, terminally with short gland ducts; spermathecae oval, touching each other; fertilization ducts extending transversely.

Distribution

China (Hubei, Guizhou) ( Fig. 18 ).

Figures

Fig. 9. Male palp of Synagelides longus Song & Chai, 1992 (TRU-Salticid-0020). A. Prolateral view. B. Retrolateral view. C. Ventral view. D. Embolus and median apophysis, ventral view. E. Embolus and median apophysis, retrolateral view. F. Dorsal view. Abbreviations: see Material and methods. Scale bars = 0.1 mm.

Fig. 10. Synagelides longus Song & Chai, 1992. A–C, F. ♀ (TRU-Salticid-0024). D–E, G–H. ♂ (TRU- Salticid-0020). A. Epigyne, ventral view. B. Epigyne, dorsolateral view. C. Epigyne, dorsal view. D. Habitus, dorsal view. E. Habitus, ventral view. F. Habitus, dorsal view. G. Chelicerae, dorsal view. H. Leg I, prolateral view. Abbreviations: see Material and methods. Scale bars: A–C, G = 0.1 mm; D–F, H = 0.5 mm.

Fig. 17. Male palp of Synagelides spp. A, C. Holotype, retrolateral view. B, D. Male, retrolateral view. A. S. logunovisp. nov. (TRU-Salticid-0016). B. S. forkiformaYang, Zhu & Song, 2007 (HNU-20040428- 01). C. S. bohdanowiczi sp. nov. (TRU-Salticid-0010). D. S. palpalis Żabka, 1985 (TRU-Salticid-0053). Abbreviations: see Material and methods. Scale bars = 0.1 mm.

Fig. 18. Distributional map of eight species of Synagelides Strand, 1906: S. bohdanowiczi sp. nov.; S. forkiforma Yang, Zhu & Song, 2007; S. leigongensis sp. nov.; S. longus Song & Chai, 1992; S. logunovi sp. nov., S. subgambosus sp. nov.; S. wuliangensis sp. nov.; S. xingdouensis sp. nov.