Crassignatha xichou Y. Lin & S. Li, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.988.56188 |
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publication LSID |
lsid:zoobank.org:pub:6E64D69B-DD73-4A7E-AE2B-3CD21247A5E3 |
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persistent identifier |
https://treatment.plazi.org/id/41448EB7-E443-4F85-985A-556905296DA6 |
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taxon LSID |
lsid:zoobank.org:act:41448EB7-E443-4F85-985A-556905296DA6 |
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treatment provided by |
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scientific name |
Crassignatha xichou Y. Lin & S. Li |
| status |
sp. nov. |
Crassignatha xichou Y. Lin & S. Li sp. nov. Figs 33 View Figure 33 , 38 View Figure 38
Type material.
Holotype ♀ (NHMSU Ar 130), China: Yunnan Province, Wenshan Prefecture, Xichou County, near to radio and television transmitting tower, in leaf litter (23.43302°N, 104.67320°E; 1556 m), 17.V.2015, Z. Chen and Y. Li leg.; paratype 1♀ (NHMSU Ar 131), China: Yunnan Province, Nanjian County, Xiaowan Township, Huilongshan Village, near to entrance of Banpoyan Cave, in bushes (24.93353°N, 100.31443°E; 1990 m), 23.VIII.2018, Y. Lin et al. leg.
Diagnosis.
This new species can be easily distinguished from all species of Crassignatha by the lack of a scape, the fertilization ducts starting at the posterolateral margin of the spermathecae, the copulatory ducts connecting to the anterolateral margin of spermathecae, fusing into an H-shaped atrium above copulatory opening (Fig. 33E, F View Figure 33 ).
Description.
Female (holotype). Total length 0.60. Carapace 0.24 long, 0.28 wide, 0.24 high. Clypeus 0.06 high. Sternum 0.16 long, 0.16 wide. Abdomen 0.44 long, 0.40 wide, 0.48 high. Length of legs: I 0.88 (0.24, 0.10, 0.20, 0.14, 0.20); II 0.78 (0.20, 0.10, 0.18, 0.12, 0.18); III 0.64 (0.14, 0.10, 0.14, 0.10, 0.16); IV 0.74 (0.20, 0.10, 0.16, 0.10, 0.18).
Somatic characters (Fig. 33A-C View Figure 33 ). Coloration: carapace dark brownish, darker in thoracic center and margins. Mouthparts and sternum dark. Abdomen dark grayish. Prosoma: carapace nearly pear shaped, surface indistinctly textured. Cephalic part raised. ALE slightly protruded. PER straight. Chelicerae lighter than endites and labium, bears short setae anteriorly. Labium nearly semicircular. Sternum scutiform, slightly swollen, surface pitted, truncated posteriorly. Legs: metatarsi and tarsi yellow-brown, tibiae and femora dark. Abdomen: oval dorsally, with light brown sclerotized dots. Spinnerets tiny.
Epigyne (Fig. 33D-F View Figure 33 ): epigynal area dark, slightly sclerotized, with sparse, short setae. Scape absent. Internal structures faintly visible via translucent tegument. Paired spermathecae small, globose, separated by their diameter. Fertilization ducts originating posteromedially from spermathecae, coiled below spermathecae. Copulatory ducts long, connected to outer lateral margin of spermathecae, making four turns before merging into an H-shaped atrium.
Male. Unknown.
Etymology.
The specific name is derived from the type locality; noun in apposition.
Distribution.
China (Yunnan) (Fig. 38 View Figure 38 ).
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.