Research Article |
Corresponding author: Xianjin Peng ( xjpeng@126.com ) Academic editor: Shuqiang Li
© 2016 Chen Zeng, Cheng Wang, Xianjin Peng.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Zeng C, Wang C, Peng X-J (2016) Three spider species of the genus Mimetus Hentz, 1832 (Araneae, Mimetidae) from China. ZooKeys 626: 125-135. https://doi.org/10.3897/zookeys.626.7918
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The present paper deals with three species of the genus Mimetus from China, including M. echinatus Wang, 1990, M. lamelliformis sp. n. (male), and M. wangi sp. n. (female and male). M. lamelliformis differs from the related species M. echinatus Wang, 1990 by: cymbial tip with several slender long macrosetae; cymbium boat-shaped, length/width ratio about 3/1 in retrolateral view; vexillum about 1/2 length of cymbium in retrolateral view. M. wangi sp. n. differs from the related species M. sinicus Song & Zhu, 1993 by: the opisthosoma with a pair of distinct outgrowths in the dorsum; sperm duct nearly horizontal; spermathecae kidney shaped and contiguous. Photos of body and copulatory organs, line drawings of copulatory organs, as well as the locality map are provided.
Taxonomy, new species, Asia, diagnosis, redescription
The genus Mimetus was established by
While examining specimens collected from Hunan, Guizhou and Yunnan Provinces, two members of Mimetus were identified as new species and one was identified to be M. echinatus Wang, 1990. Descriptions and diagnoses of the new species and a redescription of M. echinatus have been presented in this paper.
All specimens were kept in 75% ethanol, examined and measured with an Olympus SZX16 stereomicroscope and an Olympus BX53 compound microscope, respectively. Photos were taken with a digital camera Canon Powershot G12 mounted on an Olympus SZX16 and compound focus images were generated using Helicon Focus Software (3.10).
Specimens are deposited in the College of Life Sciences, Hunan Normal University, Changsha, China. All measurements are given in millimeters (mm). Leg measurements are given as: total length (femur, patella + tibia, metatarsus, tarsus). The abbreviations used in text including:
AER anterior eye row
ALE anterior lateral eye
AME anterior median eye
CD copulatory duct
CO copulatory opening
E embolus
FD fertilization duct
M membrane
MOA median ocular area
P paracymbium
PER posterior eye row
PLE posterior lateral eye
PME posterior median eye
S spermatheca
SH shovel
ST subtegulum
VE vexillum
Mimetus echinatus Wang, 1990: 44, fig. IV.6–10 (male and female).
2♂, 1♀, China, Hunan, Changsha City, Yuelu Mountain, 20 April 1981, Jiafu Wang leg.;
6♂, 2♀, China, Hunan, Shimen County, Huping Township, Daling Village, 30.02175°N, 110.37455°E, 710m, 19 June 2014, Cheng Wang, Bing Zhou, Jiahui Gan and Yuhui Gong leg.
Male. Carapace (Fig.
Male palp (Figs
Female. Carapace (Fig.
Epigyne (Figs
China (Hunan).
Holotype ♂, China, Guizhou: Yanhe County, Daheba Township, Mayanhe National Nature Reserve 28.65839°N, 108.26033°E, 364m, 28 July 2014, Xianjin Peng, Cheng Wang, Bing Zhou, Ping Liu, Yi Huang and Mingyong Liao leg.
The specific name comes from the Latin word lamellaris, meaning flaky and referring to the flaky vexillum on the cymbial tip; adjective.
The new species can be distinguished from all known congeneric species by: cymbial tip with several slender long macrosetae (Fig.
Male: Total length 3.05. Prosoma 1.65 long, 1.30 wide. Opisthosoma 1.40 long, 1.13 wide. Clypeus 0.20 high. Carapace (Fig.
Male palp (Figs
Female. Unknown.
China (Guizhou).
Holotype ♂, China, Yunnan: Gaoligong Mountains, Dulongjiang Township, Xianjiudang Village, 27.93682°N, 98.3260°E, 1634m, 5 April 2004, Guo Tang leg. Paratypes: 5♀, same data as holotype.
The specific name is a patronym in honor of Professor Jiafu Wang, a well known spider taxonomist in China; noun.
The new species can be distinguished from all known congeneric species by: the dorsum of the opisthosoma with a pair of distinct outgrowths (Fig.
Male: Total length 3.34. Prosoma 1.50 long, 1.20 wide. Opisthosoma 1.84 long, 1.40 wide. Clypeus 0.05 height. Carapace (Fig.
Male palp (Figs
Female. Total length 3.65. Prosoma 1.55 long, 1.10 wide. Opisthosoma 1.95 long, 2.05 wide. Clypeus 0.10 high. Carapace (Fig.
Length of legs: I 12.92 (3.51, 4.30, 3.60, 1.50), II 9.55 (2.87, 2.91, 2.38, 1.38), III 5.93 (1.82, 1.91, 1.21, 1.00), IV 6.75 (2.10, 2.30, 1.35, 1.00). Dorsum of opisthosoma (Fig.
Epigyne (Figs
China (Yunnan).
We are grateful to Yi Huang, Ping Liu, Bing Zhou, Jiahui Gan, Yuhui Gong Mingyong Liao and Guo Tang for collecting the specimens. This research was sponsored by the National Science Foundation of the USA through the grant Biotic survey of the Gaoligongshan, a biodiversity hotspot in western Yunnan, China (No. DEB-0103795). It is also partly supported by the National Natural Sciences Foundation of China (NSFC-30970327, 31272271, 31272272), the National Special Fund on Basic Research of Science and Technology of China (No. 2014FY110100), Hunan Provincial Natural Science Foundation of China (No.11JJ1004/12JJ3028), Program for New Century Excellent Talents in University (NCET-12-0717), China Postdoctoral Science Foundation (No. 20100471221/201104506), the program of Hunan Provincial Science and Technology Plans (No. 2010RS4006) and the Hunan Provincial Program for Development of Key Disciplines in Ecology.