Tricholathys chenzhenningi sp. nov. (陈氏毛隐蛛)
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publication ID |
https://dx.doi.org/10.3897/zookeys.1185.107005 |
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publication LSID |
lsid:zoobank.org:pub:568A472D-950D-4338-A7DF-56C6EE473761 |
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persistent identifier |
https://treatment.plazi.org/id/1A6CA21C-C5FC-5184-9B49-8310F58751E6 |
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treatment provided by |
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scientific name |
Tricholathys chenzhenningi sp. nov. (陈氏毛隐蛛) |
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Tricholathys chenzhenningi sp. nov. (陈氏毛隐蛛)
Figs 1 View Figure 1 , 4 View Figure 4 , 5 View Figure 5 , 16 View Figure 16
Type materials.
Holotype male: China, Qinghai, Menyuan County, Huangcheng Township, Liuhuanggou, 37°47′50.69″N, 101°16′48.23″E, elev. 3491 m, 13 August 2019, L.Y. Wang and Z.J. Shi leg. (SWUC-T-DI-08-01). Paratypes: 5 males and 5 females (SWUC-T-DI-08-02~11), with same data as holotype; 1 male (SWUC-T-DI-08-12), Qilian County, Ebao Town, Jiangyangling, 37°50′21.27″N, 101°6′47.75″E, elev. 3733 m, L.Y. Wang and Z.J. Shi leg.
Etymology.
The specific name is a patronym in honor of Prof. Zhenning Chen from Qinghai Normal University in Xining.
Diagnosis.
The new species is similar to T. ovtchinnikovi ( Marusik et al. 2017: 258, figs 2E, F, 4G-I, 5A-E, 6J-L) in having the embolus originating at about 7:30 o’clock position, the anterior arm of the conductor tapering gradually and terminating at about 9:30 o’clock, the posterior arm of conductor spiral, distal, and with a small tooth at the center, the copulatory ducts semicircular, the spermathecae spherical, and the fertilization ducts thin and hook-shaped; the new species differs from T. ovtchinnikovi in having the posterior arm of the conductor wide (narrow in T. subnivalis ), the retrolateral tibial apophysis fat and as wide as the tibia (slender in T. subnivalis and narrower than the tibia) (Figs 4A, B View Figure 4 , 5C, E-G View Figure 5 ), and the copulatory ducts rounded (oval in T. subnivalis ) (Figs 4C, D View Figure 4 , 5H-I View Figure 5 ).
Description.
Male (holotype). Habitus as in Fig. 5A View Figure 5 . Total length 3.73 (3.40-4.57 in male paratypes). Prosoma 1.77 long, 1.36 wide; opisthosoma 2.12 long, 1.36 wide. Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.06, PLE 0.08; AME-AME 0.05, AME-ALE 0.04, PME-PME 0.12, PME-PLE 0.09, ALE-PLE 0.05. MOA 0.20 long, anterior width 0.18, posterior width 0.24. Clypeus height 0.12. Chelicerae with 4 promarginal and 3 retromarginal teeth. Leg measurements: I 4.08 (1.12, 1.55, 0.84, 0.57); II 3.29 (0.95, 1.09, 0.73, 0.52); III 2.92 (0.94, 0.91, 0.63, 0.44); IV 4.26 (1.24, 1.47, 1.00, 0.55). Leg formula: 4123.
Palp (Figs 4A, B View Figure 4 , 5C, E-G View Figure 5 ). Tip of cymbium with shorter tip and 4 spines. Anterior arm of conductor tapering gradually and terminating at about 9:30 o’clock position; posterior arm with small spine (Fig. 5C, F, G View Figure 5 ; 4A, B View Figure 4 ). Embolus originating at about 7:30 o’clock position; distal part covered by conductor.
Female (paratype). Habitus as in Fig. 5B View Figure 5 . Total length 3.84 (3.33-4.72 in other female paratypes). Prosoma 1.74 long, 1.35 wide; opisthosoma 2.37 long, 1.50 wide. Eye sizes and interdistances: AME 0.07, ALE 0.10, PME 0.07, PLE, 0.07; AME-AME 0.07, AME-ALE 0.05, PME-PME 0.11, PME-PLE 0.10, ALE-PLE 0.05. MOA 0.22 long, anterior width 0.20, posterior width 0.25. Clypeus height 0.10. Leg measurements: I 3.78 (1.11, 1.37, 0.75, 0.55); II 3.31 (1.00, 1.12, 0.70, 0.49); III 2.71 (0.81, 0.79, 0.67, 0.44); IV 4.03 (1.17, 1.37, 0.99, 0.50). Leg formula: 4123.
Epigyne (Figs 4C, D View Figure 4 , 5H, I View Figure 5 ). Copulatory openings cochleate, space between them wider than the diameter of the copulatory openings. Weakly sclerotized parts of copulatory ducts S-shaped, and strongly sclerotized part forming almost an entire circle. Spermathecae small, comma-shaped, nearly two times longer than its width. Space between spermathecae slightly narrower than space between copulatory ducts, nearly two times of the width of spermathecae.
Distribution.
China (Qinghai).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.