Mimetus yinae, Gan & Irfan & Peng & Ran & Zhan, 2019
|
publication ID |
https://doi.org/ 10.5852/ejt.2019.525 |
|
publication LSID |
lsid:zoobank.org:pub:5437165E-9628-4642-A7BF-10C8AEABA1CD |
|
persistent identifier |
https://treatment.plazi.org/id/023B1607-FFA8-5B22-F5FF-DEA3FE6FFADA |
|
treatment provided by |
Plazi |
|
scientific name |
Mimetus yinae |
| status |
sp. nov. |
Mimetus yinae View in CoL sp. nov.
urn:lsid:zoobank.org:act:07968710-4B81-4D8C-8DFC-24217A695889
Figs 5–7 View Fig View Fig View Fig
Differential diagnosis
The new species resembles M. echinatus Wang, 1990 , especially in the cymbial apex of male palp with several macrosetae and distal part of paracymbium with a subtriangular outgrowth ( Wang 1990: figs 5A–B, 6C–D; Zeng et al. 2016: figs 1B–C, 2A–B), but can be distinguished from the latter by 1) vexillum of male palp columnar in retrolateral view ( Figs 5B View Fig , 6D View Fig ) versus sheet-like in M. echinatus ( Zeng et al. 2016: figs 1B–C, 2A–B); 2) the structure of the distal division of bulb different; 3) scape of epigyne bell-shaped in ventral view ( Figs 5C View Fig , 6F View Fig ) versus trapezoid in M. echinatus ( Zeng et al. 2016: figs 1B–C, 2A–B); 4) length of basal plate about 2.5 times of its width in ventral view ( Figs 5C View Fig , 6F View Fig ) versus about 4 times in M. echinatus ( Zeng et al. 2016: figs 1B–C, 2A–B).
Etymology
The specific name is patronym in honour of prof. Changming Yin, one of the most famous Chinese arachnologists.
Type material
Holotype
CHINA • ♂ ; Guizhou, Jiangkou County, Dewang Township, Nanmuping Village , Fanjingshan National Nature Reserve , Nanmuping ; 27°51′41″ N, 108°36′52″ E; 897 m; 17 Jul. 2015; Cheng Wang, Mingyong Liao, Tian-jun Liu, Gao-tao Liu, Xing Kuang and Peng Luo leg.; GZ-MIM-2015-005 . GoogleMaps
Paratypes
CHINA • 2 ♀♀; same data as for holotype; GZ-MIM-2015-006 , GZ-MIM-2015-007 GoogleMaps • 1 ♀, Shibing County, Maxi Township , Bajiaoping Village; 27°18′8″ N, 108°5′55″ E; 990 m; 13 Jul. 2017; Xiao-qi Mi, Cheng Wang, Feng-e Li, Gui-jie Tian and Hong Liu leg.; GZ-MIM-2017-001 GoogleMaps • 2 ♀♀; Shiqian County, Ganxi Township , Fuyan Village; 27°21′39″ N, 108°1′59″ E; 708.9 m; 16 Jul. 2017; Xiao-qi Mi, Cheng Wang, Feng-e Li, Gui-jie Tian and Hong Liu leg.; GZ-MIM-2017-002, GZ-MIM-2017-003 GoogleMaps .
Description
Male (holotype)
MEASUREMENTS. Total length. 4.68.
PROSOMA. 2.37 long, 2.01 wide, pear-shaped, yellow-brown, with a triangular brown patch, two pairs of yellow spots, and three pairs of white patches posteriorly, fovea oval, situated posteriorly ( Fig. 6A View Fig ).
CLYPEUS. 0.25 high.
EYE. Sizes and interdistances:AME 0.21, ALE 0.15, PME 0.13, PLE 0.12, AME–AME 0.05, ALE–AME 0.07, PME–PME 0.11, PME–PLE 0.22. MOA anterior width 1.08, posterior width 1.05, length 0.38.
CHELICERAE ( Figs 5E View Fig , 6E View Fig ). red-brown, with 10 promarginal peg setae and 2 retromarginal teeth.
ENDITES. Light yellow, longer than wide.
LABIUM. Light yellow, longer than wide.
STERNUM. Pear-shaped, glabrous, yellow, with few macrosetae on margin.
LEGS. Slim, spiniferous, with brown patches. Length of legs: I 13.19 (3.51, 4.32, 3.76, 1.60), II 9.76 (2.48, 3.42, 2.35, 1.51), III 6.26 (1.97, 1.93, 1.21, 1.15), IV 7.62 (2.50, 2.45, 1.53, 1.14). Leg formula: 1243.
OPISTHOSOMA. 2.47 long, 1.98 wide, oval, with a pair of triangular white patches medially, and covered with brown dots and sparse hairs ( Fig. 6A View Fig ); ventral side with three brown patches, median area grey, glabrous, with white spots on both sides.
PALP ( Figs 5 View Fig A–B, 6C–D).
CYMBIUM. Slightly domed, with a columnar vexillum, about 4 times longer than wide, and several macrosetae at the apex ( Figs 5B View Fig , 6D View Fig ).
PARACYMBIUM. Elongate, strongly sclerotized, slightly curved towards the bulb, with a subtriangular outgrowth distally ( Figs 5B View Fig , 6D View Fig ).
SUBTEGULUM. Semicircular; the distal division of bulb rolls up as sulciform to protect embolus ( Figs 5 View Fig A– B, 6C–D).
EMBOLUS. Slender, and terminal part covered by the distal division of bulb in prolateral view ( Figs 5A View Fig , 6C View Fig ).
Female (paratype)
MEASUREMENTS. Total length 5.33.
PROSOMA. 2.72 long, 1.90 wide, yellowish brown, long oval, markings are similar to male ( Fig. 6B View Fig ).
CLYPEUS. 0.21 high.
EYE. Sizes and interdistances: AER 0.20, ALE 0.23, PME 0.13, PLE 0.15, AME–AME 0.04, AME–ALE 0.11, PME–PME 0.10, PME–PLE 0.20. MOA anterior width 1.08, posterior width 1.12, length 0.47.
CHELICERAE. Endites and labium colouration as in male. Chelicerae with 8 promarginal peg setae and 2 retromarginal teeth.
LEG. Patches and spines on legs are similar to those in male. Length of legs: I 12.61 (3.01, 4.35, 3.53, 1.72), II 10.47 (2.87, 3.31, 2.65, 1.64), III 6.48 (2.02, 1.71, 1.43, 1.32), IV 8.01 (2.60, 2.54, 1.75, 1.12).
OPISTHOSOMA. 2.92 long, 2.31 wide, ( Fig. 6B View Fig ). Markings as those in male except for the darker colour; ventral side is similar to male except for three dark patches.
EPIGYNE ( Figs 5 View Fig C–D, 6F–G). Slightly longer than wide, basal plate big, concave and about 3 times longer than its width ( Figs 5C View Fig , 6F View Fig ). Scape bell-shaped, the terminal overlap the posterior margin of basal plate ( Figs 5C View Fig , 6F View Fig ). Copulatory openings cambered, posterior-bilaterally ( Figs 5C View Fig , 6F View Fig ). Spermathecae oval, touches each other medially ( Figs 5D View Fig , 6G View Fig ).
Distribution
China (Guizhou, Fig. 7 View Fig ).
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.