Qiongthela dongfang, Yu & Liu & Zhang & Li & Xu, 2021
|
publication ID |
https://dx.doi.org/10.3897/zookeys.1009.57857 |
|
publication LSID |
lsid:zoobank.org:pub:5CD8C660-7CDB-4664-AF88-B79090215BA3 |
|
persistent identifier |
https://treatment.plazi.org/id/6A654737-8B5C-48F0-84F6-BC0C14333BAD |
|
taxon LSID |
lsid:zoobank.org:act:6A654737-8B5C-48F0-84F6-BC0C14333BAD |
|
treatment provided by |
|
|
scientific name |
Qiongthela dongfang |
| status |
sp. nov. |
Qiongthela dongfang sp. nov. Figures 2 View Figure 2 , 3 View Figure 3
Type material.
Holotype ♂: China, Hainan Province, Dongfang City, between Puguang and the 14th Dongfang Farm, 19.08°N, 108.92°E, alt. 160 m, 24 August 2019, D. Li, F.X. Liu, X. Xu and L. Yu leg., XUX-2019-159 (matured on 2 October 2019 at HNU). Paratypes: 3 ♀♀, same data as holotype, XUX-2019-156, 157, 160; 1 ♂, same locality as holotype, 5 August 2017, D. Li, F.X. Liu, Z.T. Zhang and X. Xu leg., XUX-2017-065 (♂ matured on 20 October 2018 at HNU).
Diagnosis.
Males of Q. dongfang sp. nov. resemble those of Q. jianfeng , but can be distinguished from the latter by the tegular marginal apophysis with a pointed, sharp apex (Fig. 3D, E, G View Figure 3 ) and the tegular terminal apophysis with a hook-like apex (Fig. 3A, B View Figure 3 ); from those of the rest of Qiongthela species by the conductor base with a semioval apophysis ventrally (Fig. 3E View Figure 3 ). Females of Q. dongfang sp. nov. differ from those of Q. bawang and Q. qiongzhong by the receptacular clusters all similar in size and with short genital stalks (Fig. 3H-K View Figure 3 ); from those of Q. nankai sp. nov. by the bases of middle receptacular clusters separated from each other (Fig. 3H-K View Figure 3 ); from those of the rest of Qiongthela species by the two paired receptacular clusters separated from each other, and situated along the anterior margin of the bursa copulatrix and all similar in size (Fig. 3H-K View Figure 3 ).
Description.
Male (holotype, Fig. 2D View Figure 2 ). Carapace light brown; opisthosoma brown, with 12 dark brown tergites, close to each other, the first 2-7 larger than the others, and the fourth largest; sternum narrow, much longer than wide; a few fine pointed hairs running over the ocular area; chelicerae with promargin of cheliceral groove bearing 8 denticles; legs with firm hairs and spines; 7 spinnerets. Measurements: BL 10.89, CL 5.35, CW 4.85, OL 5.26, OW 3.56; ALE> PLE> PME> AME; leg I 16.22 (4.82 + 1.45 + 3.59 + 4.33 + 2.03), leg II 15.90 (4.48 + 1.30 + 3.58 + 4.37 + 2.17), leg III 15.34 (3.83 + 1.08 + 3.25 + 4.63 + 2.55), leg IV 20.64 (4.95 + 1.10 + 4.43 + 7.00 + 3.16).
Palp. Cymbium with a short projection dorsally (Fig. 3G View Figure 3 ); paracymbium unpigmented and unsclerotised prolaterally, with numerous setae at the tip (Fig. 3A-C View Figure 3 ). Contrategulum with two edges distally: the inner one finely dentate, the outer one sharp, semi-translucent (Fig. 3D-F View Figure 3 ). Marginal apophysis of the tegulum long, pointed, wide basally, with a sharp apex (Fig. 3D View Figure 3 ), proximally-directed terminal apophysis of tegulum with several denticles, narrowing to a hooked apex (Fig. 3A, B, E View Figure 3 ). Conductor situated ventro-proximally on the embolus, basal portion fused with the embolus and forming a semioval apophysis ventrally, distal portion free, narrowing to a slightly bent apex (Fig. 3A, B, E View Figure 3 ). Embolus largely sclerotised, with a wide, flat opening of the sperm duct distally (Fig. 3B, C, E View Figure 3 ).
Female (Fig. 2E View Figure 2 ). Carapace reddish brown; opisthosoma brown, with 12 light brown tergites, close to each other, the first 2-7 larger than the others, and the fourth largest; sternum narrow, much longer than wide; a few fine pointed hairs running over the ocular area; chelicerae robust with promargin of cheliceral groove containing 10 denticles of variable size; legs with firm hairs and spines; 7 spinnerets. Measurements: BL 17.47, CL 8.25, CW 6.78, OL 8.36, OW 6.43; ALE> PLE> PME> AME; palp 11.01 (3.66 + 1.40 + 2.81 + 3.14), leg I 15.16 (4.87 + 1.89 + 3.54 + 3.07 + 1.79), leg II 14.86 (4.78 + 1.85 + 3.20 + 3.15 + 1.88), leg III 15.37 (4.37 + 1.94 + 3.04 + 3.74 + 2.28), leg IV 22.99 (6.70 + 2.58 + 4.55 + 6.06 + 3.10).
Female genitalia. Two pairs of similar-sized receptacular clusters along the anterior margin of the bursa copulatrix, with short genital stalks (Fig. 3H-K View Figure 3 ).
Variation.
Males and females vary in body size. Range of measurements in males (N = 2): BL 10.89-14.76, CL 5.35-7.20, CW 4.85-6.50, OL 5.26-7.18, OW 3.56-4.58; in females (N = 3): BL 12.63-17.47, CL 6.00-8.25, CW 5.46-6.78, OL 6.19-8.36, OW 4.93-6.43.
Etymology.
The species epithet, a noun in apposition, refers to the type locality.
Distribution.
Hainan (Dongfang), China
GenBank accession number.
XUX-2019-159: MT900751.
Remarks.
The maximum and mean intraspecific genetic distances of Q. dongfang sp. nov. are 0.3% and 0.2% based on Kimura 2-parameter (K2P) model, respectively (N = 5). We calculated the interspecific genetic distance between the holotypes of the two closest species. The genetic distances between Q. dongfang sp. nov. and Q. jianfeng (GenBank accession code: KP229838 (paratype); we used the sequence of paratype because the DNA barcodes of the holotype and paratype are identical; Xu et al. 2017), Q. nankai sp. nov., and Q. yalin sp. nov. are 7.7%, 15.7%, and 9.1% based on K2P, respectively.
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.