Mekonglema walayaku Zhao & Li, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.933.38653 |
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publication LSID |
lsid:zoobank.org:pub:AE87B5CF-9728-466B-AB05-6BFFFED802D4 |
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persistent identifier |
https://treatment.plazi.org/id/5F673823-850D-4F65-B0AA-47094A9AAB16 |
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taxon LSID |
lsid:zoobank.org:act:5F673823-850D-4F65-B0AA-47094A9AAB16 |
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treatment provided by |
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scientific name |
Mekonglema walayaku Zhao & Li |
| status |
sp. nov. |
Mekonglema walayaku Zhao & Li sp. nov. Figures 16 View Figure 16 , 17 View Figure 17 , 33 View Figure 33
Type material.
Holotype: ♂ (IZCAS), China, Yunnan Province, Nujiang Lisu Autonomous Prefecture, Lushui County, Daxingdi Township, Walayaku Cave. 26.1215N, 98.8581E, elevation ca. 895 m, 24.VI.2016, Y. Li and J. Liu leg. Paratypes: 2♂ and 4♀ (IZCAS), same data as holotype.
Etymology.
The species name refers to the type locality; noun in apposition.
Diagnosis.
This species resembles M. kaorao sp. nov. but can be distinguished by the following characters: the bulb is ellipsoidal (Fig. 16C, D View Figure 16 ) (vs. nearly globular), the tip of the embolus is well sclerotized (arrow on Fig. 16B View Figure 16 ) (vs. unsclerotized); the neck of the receptacle is ca. three times thinner (vs. 1.50 times thinner) than the distal part of the receptacle (Fig. 17A View Figure 17 ).
Description.
Male (holotype). Total length 1.06. Carapace 0.49 long, 0.43 wide. Abdomen 0.56 long, 0.55 wide. Carapace light brown (Fig. 16A View Figure 16 ). Eyes vestigial (Fig. 16A View Figure 16 ). Chelicerae, legs, labium, and endites light yellow. Sternum bright brown with sparse setae. Leg measurements: I 3.65 (1.03, 0.18, 1.13, 0.78, 0.53); II 3.20 (0.96, 0.17, 0.95, 0.65, 0.47); III 2.26 (0.67, 0.16, 0.61, 0.44, 0.38); IV 2.86 (0.85, 0.16, 0.83, 0.59, 0.43). Abdomen dark blue (Fig. 16A View Figure 16 ).
Palp: Tibia 1.88 times longer than patella, cymbium 1.34 times longer than tibia, cymbial apophysis length as wide as cymbial base (Fig. 16C View Figure 16 ); bulb ellipsoidal as in Fig. 16C, D View Figure 16 ; embolus 5/7 as long as cymbium, directed dorsally (Fig. 16C, D View Figure 16 ).
Female. Total length 1.15. Carapace 0.50 long, 0.47 wide. Abdomen 0.63 long, 0.58 wide. Coloration as in male (Fig. 17B, C View Figure 17 ). Leg measurements: I 3.36 (0.97, 0.19, 1.03, 0.69, 0.48); II 3.00 (0.89, 0.19, 0.88, 0.59, 0.45); III 2.15 (0.65, 0.17, 0.59, 0.40, 0.34); IV 2.80 (0.85, 0.18, 0.79, 0.56, 0.42). Abdomen blue. Receptacle membranous, neck much longer than tip, and tip three times wider than neck (Fig. 17A View Figure 17 ).
Distribution.
China (Yunnan, Nujiang, site 4 in Fig. 33 View Figure 33 ), known only from the type locality.
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.