Ketambea liupanensis ( Tang & Song, 1992 ) Li & Liu & Chen, 2018

Li, Jian Yong, Liu, Jie & Chen, Jian, 2018, A review of some Neriene spiders (Araneae, Linyphiidae) from China, Zootaxa 4513 (1), pp. 1-90 : 5-6

publication ID

https://doi.org/ 10.11646/zootaxa.4513.1.1

publication LSID

lsid:zoobank.org:pub:2A0837FC-0B2B-41B3-9C0E-25D9E73E43A1

DOI

https://doi.org/10.5281/zenodo.5977341

persistent identifier

https://treatment.plazi.org/id/8D7387E9-C006-FF86-FF1F-FADBFF7CFCD1

treatment provided by

Plazi

scientific name

Ketambea liupanensis ( Tang & Song, 1992 )
status

comb. nov.

Ketambea liupanensis ( Tang & Song, 1992) View in CoL new combination

Figs 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 , 69 View FIGURE 69

Neriene liupanensis Tang & Song, 1992b: 415 View in CoL , f. 1–3 (Df); Song, Zhu & Chen, 1999: 194, f. 110H–I (f); Hu, Zhang & Li, 2011: 528, f. 1a–e (f, Dm).

Material examined. Ningxia: GoogleMaps Guyuan City, Longde County, Liupanshan Mt.   GoogleMaps Red Army Memorial Tower, 35.67°N, 106.21°E, 2782m, 8.viii.2010, F.X. Liu, J. Chen & B.R. Zhu leg., 3FF (CBEE); Xizang: Linzhi Prefecture, Linzhi County, Boshuwang Park , 29.65°N, 94.36°E, 3100m, 18.viii.2009, Z.Z. Yang leg., 1M ( HEBU) GoogleMaps .

Diagnosis: The long filiform embolus, the absence of terminal apophysis, the claviform distal suprategular apophysis, the absence of parmula, the erect fertilization grooves indicated that Neriene liupanensis Tang & Song, 1992 and Neriene nigripectoris ( Oi, 1960) should not belong to the genus Neriene ( Figs 1 View FIGURE 1 , 2 View FIGURE 2 B–D, 3B–D, 4–5, 6C– E). According to Millidge & Russell-Smith (1992) and Tanasevitch (2017), the atrium with paired, more or less round openings anteriorly, the lightly sclerotized suprategular apophysis largely hidden by the embolic division, the reduced paracymbium (except K. liupanensis ) and the coiled embolus with fairly slender end indicate N. liupanensis and N. nigripectoris should belong to the genus Ketambea Millidge & Russell-Smith, 1992 . The male of K. liupanensis can be distinguished from other Ketambea species by the developed paracymbium ( Figs 1B View FIGURE 1 , 2B, 2D View FIGURE 2 ). The female of K. liupanensis is similar to K. nigripectoris and Ketambea acuta Tanasevitch, 2017 in having similar fertilization grooves tracing which are running downwards from the spermathecae inside the spiral tracing of copulatory groove, but can be distinguished from the latters by the copulatory groove with more coils ( K. liupanensis with three coils, but K. nigripectoris and K. acuta with two coils) ( Figs 1 View FIGURE 1 D–E, 3C–D, 4F–G, 6D–E).

Description: The measurements see Hu et al. (2011). Male palp ( Figs 1 View FIGURE 1 A–B, 2B–D): Tibia shorter than cymbium. Paracymbium simple, U-shaped, with distal part widened. Distal suprategular apophysis small, claviform. Lamella well-developed, with four projections: lateral one long, U-shaped, with a claviform end curved upwardly, and posterior one short, with a slightly sharp end; anterior one blunt, with round margin; dorsal one short, with a sharp end. Embolus long, coiled. Embolic membrane massive, long, with coiled end. Male habitus as in Fig. 2A View FIGURE 2 .

Epigynum ( Figs 1C View FIGURE 1 , 3B View FIGURE 3 ): aperture triangular, septum narrow, dividing aperture into two parts. Vulva ( Figs 1 View FIGURE 1 D– E, 3C–D): Vulva longer than wide; copulatory grooves spiral, with about three coils; fertilization groove without coils, directly running downwards from the spermatheca inside the spiral tracing of copulatory groove; turningpoints situated laterally, pointing mesally; spermathecae oval. Female habitus as in Fig. 3A View FIGURE 3 .

Distribution: China (Ningxia, Gansu, Xizang), Russia ( Fig. 69 View FIGURE 69 ).

Remarks. Though we did not examine any Ketambea type specimens, Dr. Anderi V. Tanasevitch just examined the male holotype of K. rostrata Millidge & Russell-Smith, 1992 in 2017 for the diagnosis of K. acuta Tanasevitch, 2017 . N. nigripectoris and the female of N. liupanensis are very similar to K. acuta . We think it will be better to place these two species tentatively in Ketambea than Neriene , although the Ketambea needs further revision.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Ketambea

Loc

Ketambea liupanensis ( Tang & Song, 1992 )

Li, Jian Yong, Liu, Jie & Chen, Jian 2018
2018
Loc

Neriene liupanensis

Song, D. X. & Zhu, M. S. & Chen, J. 1999: 194
Tang, Y. Q. & Song, D. X. 1992: 415
1992
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