Mekonglema bailang 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/83DB76B2-BC6C-44FE-9D93-9DDB2B5CBB40 |
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taxon LSID |
lsid:zoobank.org:act:83DB76B2-BC6C-44FE-9D93-9DDB2B5CBB40 |
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treatment provided by |
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scientific name |
Mekonglema bailang Zhao & Li |
| status |
sp. nov. |
Mekonglema bailang Zhao & Li sp. nov. Figures 12 View Figure 12 , 13 View Figure 13 , 33 View Figure 33
Type material.
Holotype: ♂ (IZCAS), China, Yunnan Province, Baoshan Prefecture, Shidian County, Bailang Town, Xianren Cave, 24.6536N, 99.2645E, elevation ca. 1987 m, 29.VII.2010, C. Wang and Q. Zhao leg. Paratypes: 5♂ and 1♀ (IZCAS), same data as holotype.
Etymology.
The species name refers to the type locality; noun in apposition.
Diagnosis.
This species resembles M. yan sp. nov. but can be distinguished by the following characters: abdominal scutae present in the male (vs. absent); the embolus is sclerotized (Fig. 12B-D View Figure 12 ) (vs. unsclerotized), the bulb length/width ratio is ca. 1.2 (Fig. 12C, D View Figure 12 ) (vs. ca. 1.7); the receptacle is short and almost straight (Fig. 13A View Figure 13 ) (vs. long and U-shaped). This species also resembles M. xinpingi comb. nov. but can be differentiated by the following: the absence of eyes (vs. presence), the nearly ellipsoid shape of the bulb (Fig. 12C, D View Figure 12 ) (vs. droplet shaped), the fin-like embolus (Fig. 12C View Figure 12 ) (vs. cone shaped), and the receptacle is short and not swollen distally (vs. receptacle long and swollen distally).
Description.
Male (holotype). Total length 1.50. Carapace 0.65 long, 0.61 wide. Abdomen 0.85 long, 0.79 wide. Carapace brown (Fig. 12A View Figure 12 ). Four vestigial eyes (Fig. 12A View Figure 12 ). Chelicerae, legs, labium, and endites light brown. Sternum bright brown with sparse setae (Fig. 12A View Figure 12 ). Leg measurements: I 5.05 (1.45, 0.23, 1.60, 1.13, 0.64); II 4.54 (1.36, 0.23, 1.41, 0.95, 0.59); III 3.20 (0.98, 0.21, 0.92, 0.62, 0.47); IV 4.17 (1.30, 0.20, 1.24, 0.88, 0.55). Abdomen pale brown (Fig. 12A View Figure 12 ).
Palp. Tibia 2.12 times longer than patella, cymbium 1.74 times longer than tibia, cymbial apophysis length 2/3 as wide as cymbial base (Fig. 12C View Figure 12 ); bulb shaped as shown in Fig. 12C, D View Figure 12 ; bulbal apophysis sclerotized and semi-circular with claw-like tip, embolus sclerotized (Fig. 12B-D View Figure 12 ).
Female. Total length 1.48. Carapace 0.65 long, 0.63 wide. Abdomen 0.81 long, 0.80 wide. Coloration as in male (Fig. 13B, C View Figure 13 ). Leg measurements: I 4.78 (1.47, 0.24, 1.45, 1.00, 0.62); II 4.35 (1.34, 0.22, 1.33, 0.88, 0.58); III 3.04 (0.96, 0.22, 0.87, 0.54, 0.45); IV 4.05 (1.28, 0.19, 1.18, 0.85, 0.55). Abdomen pale grey. Insemination entrance membranous, two times thinner than receptacle (Fig. 13A View Figure 13 ); receptacle tube-like and straight (Fig. 13A View Figure 13 ).
Distribution.
China (Yunnan, Baoshan, site 2 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.