Tricholathys serrata sp. nov. (齿状毛隐蛛)
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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/7A706798-0C52-5F2F-8210-8BC090A83215 |
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treatment provided by |
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scientific name |
Tricholathys serrata sp. nov. (齿状毛隐蛛) |
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Tricholathys serrata sp. nov. (齿状毛隐蛛)
Figs 12 View Figure 12 , 13 View Figure 13 , 16 View Figure 16
Type materials.
Holotype male: China, Tibet, Gemucuo, 33°39′27″N, 85°49′19″E, September 1990 (SWUC-T-DI-12-01). Paratypes: 2 females (SWUC-T-DI-12-02~03), with same data as holotype.
Etymology.
The specific epithet comes from the Latin adjective serratus, meaning “serrated” and refers to the shape of the posterior arm of the conductor; the gender is feminine (serrata).
Diagnosis.
This species can be distinguished from all congeners by the bifurcated tip of the posterior arm of the conductor (Figs 12A, B View Figure 12 , 13C-E View Figure 13 ), the very short tibia, the rounded tip of retrolateral tibial apophysis, the short, almost straight copulatory ducts which originate from the mesal part of the epigynal plate, and the spermathecae which is wider than long (Figs 12C, D View Figure 12 , 13F, G View Figure 13 ).
Description.
Male (holotype). Habitus as in Fig. 13A View Figure 13 . Total length 4.04. Prosoma 2.05 long, 1.59 wide; opisthosoma 2.13 long, 1.40 wide. Eye sizes and interdistances: AME 0.09, ALE 0.10, PME 0.07, PLE, 0.07; AME-AME 0.09, AME-ALE 0.04, PME-PME 0.10, PME-PLE 0.09, ALE-PLE 0.05. MOA 0.22 long, anterior width 0.22, posterior width 0.25. Clypeus height 0.10. Chelicerae with 3 promarginal and 2 retromarginal teeth. Leg measurements: I 5.62 (1.60, 2.12, 1.16, 0.74); II 5.06 (1.41, 1.82, 1.12, 0.71); III 4.65 (1.29, 1.53, 1.13, 0.70); IV 5.83 (1.58, 2.01, 1.46, 0.78). Leg formula: 4123.
Palp (Figs 12A, B View Figure 12 , 13C-E View Figure 13 ). Tibia short, as long as wide. Retrolateral tibial apophysis wider than long, with rounded tip. Anterior arm of conductor terminating at about 11:00 o’clock position; tip of posterior arm of conductor bifurcated; ventral branch longer than dorsal; dorsal branch serrated (Figs 12B View Figure 12 , 13C, E View Figure 13 ). Embolus with large base; filamentous part originating at about 9:30 o’clock position.
Female (paratype). Habitus as in Fig. 13B View Figure 13 . Total length 5.45 (4.86 in other paratype female). Prosoma 2.03 long, 1.59 wide; opisthosoma 3.40 long, 2.24 wide. Eye sizes and interdistances: AME 0.08, ALE 0.10, PME 0.08, PLE, 0.09; AME-AME 0.10, AME-ALE 0.04, PME-PME 0.13, PME-PLE 0.10, ALE-PLE 0.06. MOA 0.26 long, anterior width 0.24, posterior width 0.27. Clypeus height 0.11. Leg measurements: I 5.34 (1.57, 1.90, 1.13, 0.74); II 4.95 (1.41, 1.71, 1.07, 0.76); III 4.72 (1.33, 1.58, 1.03, 0.78); IV 5.69 (1.61, 1.86, 1.40, 0.82). Leg formula: 4123.
Epigyne (Figs 12C, D View Figure 12 , 13F, G View Figure 13 ). Copulatory openings about as large as the spermathecae, separated by a space wider than their diameter. Strongly sclerotized part of copulatory ducts twice as long as length of weakly sclerotized part and with a tapered accessorial caecus. Spermathecae globular, small, diameter slightly more than width of copulatory ducts.
Distribution.
Known only from the type locality, Tibet, China (Fig. 16 View Figure 16 ).
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.