Research Article |
Corresponding author: Shuqiang Li ( lisq@ioz.ac.cn ) Academic editor: Yuri Marusik
© 2015 Lu Chen, Shuqiang Li, Zhe Zhao.
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:
Chen L, Li S, Zhao Z (2015) A new genus of Coelotinae (Araneae, Agelenidae) from southern China. ZooKeys 541: 41-56. https://doi.org/10.3897/zookeys.541.6678
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One new genus of the spider subfamily Coelotinae, Flexicoelotes gen. n., with five new species is described from southern China: F. huyunensis sp. n. (female), F. jiaohanyanensis sp. n. (male and female), F. jinlongyanensis sp. n. (male and female), F. pingzhaiensis sp. n. (female), F. xingwangensis sp. n. (male and female).
Taxonomy, spider, coelotine, SE Asia, Guanxi, Yunnan
Coelotine spiders are common in the northern hemisphere. So far, a total of 646 valid species belonging to 23 genera (
In this paper, we describe a new genus of Coelotine spiders, Flexicoelotes gen. n., and five new species. All species were collected from caves in Guangxi and Yunnan, China.
Specimens were examined with a Leica M205C stereomicroscope. Images were captured with an Olympus C7070 wide zoom digital camera (7.1 megapixels) mounted on an Olympus SZX12 dissecting microscope. Epigynes and male palps were examined after dissection from the spiders’ bodies. The epigyne was cleared by boiling it in a 10% KOH solution before taking photos of the vulva.
All measurements were obtained using a Leica M205C stereomicroscope and are given in millimeters. Leg measurements are given as: Total length (femur, patella + tibia, metatarsus, tarsus). Only structures (palp and legs) of the left side of the body are described and measured. The terminology used in the text and the figure legends follows Wang (2002). Abbreviations used in this paper and in the figure legends are: A = epigynal atrium; ALE = anterior lateral eye; AA = anterior apophysis; AME = anterior median eye; AME-ALE = distance between AME and ALE; AME-AME = distance between AME and AME; ALE-PLE = distance between ALE and PLE; C = conductor; CD = copulatory duct; CDA = dorsal conductor apophysis; CF = cymbial furrow; E = embolus; EB = embolic base; ET = epigynal teeth; FD = fertilization duct; H = epigynal hood; LTA = dorso-retrolateral tibial apophysis; MA = median apophysis; PA = patellar apophysis; PLE = posterior lateral eye; PME = posterior median eye; PME-PLE = distance between PME and PLE; PME-PME = distance between PME and PME; RTA = retrolateral tibial apophysis; S = spermatheca; SH = spermathecal head; SST = spermathecal stalk; ST = subtegulum; T = tegulum.
A partial fragment of the mitochondrial gene cytochrome oxidase subunit I (COI) was amplified and sequenced for F. huyunensis sp. n., F. jiaohanyanensis sp. n., F. jinlongyanensis sp. n., F. pingzhaiensis sp. n., and F. xingwangensis sp. n. following the protocol in Miller et al. (2009). Primers used in this study are: LCO1490 (5’-CWACAAAYCATARRGATATTGG-3’) (
Species | GenBank accession number | Sequence length | Collection localities |
---|---|---|---|
Flexicoelotes huyunensis sp. n. | KT727020 | 1194 bp | TanjiawanVillage, Malipo County, Wenshan Prefecture, Yunnan Province, China |
Flexicoelotes jiaohanyanensis sp. n. | KT727021 | 1194 bp | Equan Village, Jingxi County, Baise City, Guangxi Zhuang Autonomous Region, China |
Flexicoelotes jinlongyanensis sp. n. | KT727018 | 1194 bp | Yongning Village, Napo County, Baise City, Guangxi Zhuang Autonomous Region, China |
Flexicoelotes pingzhaiensis sp. n. | KT727019 | 1194 bp | Pingzhai Village, Xichou County, Wenshan Prefecture, Yunnan Province, China |
Flexicoelotes xingwangensis sp. n. | KT727017 | 1194 bp | Xingwang Village, Debao County, Baise City, Guangxi Zhuang Autonomous Region, China |
All of the specimens (including molecular vouchers) are deposited in the
Flexicoelotes jiaohanyanensis sp. n.
The generic name is derived from the species’ similarity to Coelotes and the Latin adjective “flexus”, meaning “bent, curved”, referring to the shape of the conductor. The gender is masculine.
Males can be easily distinguished from other coelotines, except Tonsilla Wang & Yin, 1992 and Lineacoelotes Xu, Li & Wang, 2008, by the broad conductor, the spoon-like median apophysis, and the elongate cymbial furrow. They can be distinguished from Tonsilla by the bent conductor apex, rather than a lobed conductor, the presence of an anterior apophysis, and the broad cymbial furrow (Fig.
Flexicoelotes are small to medium-sized, with a total length of 4–9 mm; chelicerae with three promarginal and two retromarginal teeth; male palp with one patellar apophysis; RTA with pointed tip, extending beyond the distal margin of the tibia; LTA short; conductor broad and wider than tibia; median apophysis spoon-like; anterior apophysis present; epigynal teeth very long; atrium large; spermathecae simple, located posteriorly; copulatory ducts broad, located dorsal to the spermathecae.
China (Yunnan, Guangxi) (Fig.
Holotype ♀: China: Yunnan Province: Wenshan Prefecture: Malipo County, Tanjiawan Village, Huyun Cave, N23°21'36", E105°02'03", elevation: 1464 m, 8.VIII.2010, Z.Y. Yao, X.X. Wang and C.X. Wu leg.
The specific name refers to the type locality; adjective.
The female can be distinguished from F. jiaohanyanensis sp. n. by the short epigynal teeth (1/2 of atrial height, whereas they are almost subequal to atrial height in related species) and the broad, short and opaque copulatory ducts (Fig.
Female (holotype): Total length 6.01. Carapace 3.20 long, 2.17 wide. Abdomen 2.81 long, 1.80 wide. Eye sizes and interdistances: AME 0.09, ALE 0.17, PME 0.11, PLE 0.15; AME-AME 0.05, AME-ALE 0.03, PME-PME 0.08, PME-PLE 0.08. Leg measurements: I: 11.73 (3.09, 4.00, 2.80 1.84); II: 10.89 (2.94, 3.60, 2.66, 1.69); III: 10.04 (2.72, 3.20, 2.64, 1.48); IV: 12.90 (3.40, 4.05, 3.65, 1.80). Epigyne: atrium large, occupying 2/3 of epigynal plate; teeth long, located in atrial anterior margin, about 1/2 of atrial height and separated by their length; hoods absent; spermathecae simple, located in posterior part of epigyne; copulatory ducts broad, occupying 3/4 of epigynal plate, covering most of the spermathecae (Fig.
Known only from the type locality (Fig.
Holotype ♂: China: Guangxi Zhuang Autonomous Region: Baise City: Jingxi County, Equan Village, Jiaohanyan Cave, N23°06'22", E106°24'02", elevation: 697 m, 23.XII.2012, Z.G. Chen and Z. Zhao leg. Paratypes: 3♀3♂, same data as holotype.
The specific name is derived from the type locality; adjective.
The male can be easily distinguished from other coelotines by the broad, dark conductor and the broad anterior apophysis (Fig.
Male (holotype): Total length 6.58. Carapace 3.88 long, 2.70 wide. Abdomen 3.24 long, 2.15 wide. Eye sizes and interdistances: AME 0.13, ALE 0.18, PME 0.17, P LE 0.18; AME-AME 0.04, AME-ALE 0.03, PME-PME 0.08, PME-PLE 0.07. Leg measurements: I: 15.16 (3.85, 5.10, 3.91, 2.30); II: 14.07 (3.72, 4.35, 3.76, 2.24); III: 13.13 (3.64, 3.95, 3.63, 1.91); IV: 17.05 (4.00, 5.26, 5.45, 2.34). Palp: patellar apophysis long, subequal to half of patellar width; RTA with pointed tip, extending beyond distal margin of tibia; LTA short, approximately less than 1/5 length of RTA; cymbial furrow short, about 1/4 length of cymbium; conductor broad, apex bent, with blunt tip; dorsal conductor apophysis small; median apophysis small, spoon-like; anterior apophysis broad, with blunt tip; embolus filiform, beginning at 6:30 to 7 o’clock position (Fig.
Female (one of paratypes): Total length 4.76. Carapace 2.84 long, 1.92 wide. Abdomen 3.56 long, 2.16 wide. Eye sizes and interdistances: AME 0.11, ALE 0.18, PME 0.13, PLE 0.17; AME-AME 0.02, AME-ALE 0.03, PME-PME 0.07, PME-PLE 0.06. Leg measurements: I: 10.54 (2.88, 3.60, 2.48, 1.58); II: 9.35 (2.60, 3.12, 2.31, 1.32); III: 8.84 (2.44, 2.75, 2.43, 1.22); IV: 11.50 (3.00, 3.60, 3.36, 1.54). Epigyne: atrium large, occupying 2/3 of epigynal plate; teeth located in anterior atrial margin, separated from each other, very long, and subequal to the height of the atrium; hoods absent; spermathecae simple, located in posterior part of epigyne, covered mostly by the copulatory ducts in dorsal view; copulatory ducts broad, occupying 2/3 of epigynal plate (Fig.
Known only from the type locality (Fig.
Holotype ♂: China: Guangxi Zhuang Autonomous Region: Baise City: Napo County, Yongning Village, Jinlongyan Cave, N23°21'16", E105°51'01", elevation: 826 m, 22.XII.2012, Z.G. Chen and Z. Zhao leg. Paratypes: 2♀3♂, same data as holotype.
The specific name refers to the type locality; adjective.
The male can be distinguished from F. jiaohanyanensis sp. n. by the large dorsal conductor apophysis, the short, thin anterior apophysis, the short patellar apophysis, the complex and light-colored conductor, and the long, broad cymbial furrow (Fig.
Male (holotype): Total length 6.85. Carapace 3.55 long, 2.55 wide. Abdomen 3.30 long, 2.05 wide. Eye sizes and interdistances: AME 0.13, ALE 0.17, PME 0.17, PLE 0.19; AME-AME 0.06, AME-ALE 0.02, PME-PME 0.06, PME-PLE 0.07. Leg measurements: I: 14.35 (3.80, 4.70, 3.65, 2.20); II: 13.22 (3.52, 4.20, 3.35, 2.15); III: 12.29 (3.25, 3.68, 3.52, 1.84); IV: 16.20 (4.15, 4.85, 4.90, 2.30). Palp: patellar apophysis short; RTA with pointed tip, extending slightly beyond distal margin of tibia; LTA short, about 1/5 length of RTA; cymbial furrow long, about 1/2 length of cymbium; conductor broad, with bent apex; dorsal conductor apophysis large; median apophysis small, spoon-like; anterior apophysis short, apex is thinner than basal part; embolus filiform, beginning at 6 o’clock position (Fig.
Female (one of paratypes): Total length 8.15. Carapace 3.55 long, 2.50 wide. Abdomen 4.60 long, 2.95 wide. Eye sizes and interdistances: AME 0.13, ALE 0.18, PME 0.18, PLE 0.17; AME-AME 0.09, AME-ALE 0.04, PME-PME 0.10, PME-PLE 0.11. Leg measurements: I: 12.44 (3.27, 4.23, 2.95, 1.99); II: 11.16 (3.08, 3.64, 2.68, 1.76); III: 10.48 (2.88, 3.28, 2.76, 1.56); IV: 13.38 (3.68, 4.25, 3.75, 1.70). Epigyne: atrium large, occupying 1/2 of epigynal plate; teeth long, located in atrial anterior margin, about 3/4 of atrial height; hoods absent; spermathecae simple, located posteriorly, covered mostly by copulatory ducts; copulatory ducts broad, occupying 3/4 of epigynal plate (Fig.
Known only from the type locality (Fig.
Holotype ♀: China: Yunnan Province: Wenshan Prefecture: Xichou County, Pingzhai Village, Wuming Cave, N23°23'04", E104°46'28", elevation: 1405 m, 5.VIII.2010, Z.Y. Yao, X.X. Wang and C.X. Wu. leg. Paratypes: 2♀, same data as holotype.
The specific name refers to the type locality; adjective.
The female can be distinguished from F. jiaohanyanensis sp. n. and F. huyunensis sp. n. by the subtriangular shape of the atrium, about 1/5 width of the anterior part, the large, oval copulatory ducts and the long, slender spermathecal stalks, and can be distinguished from F. jinlongyanensis sp. n. by the oval copulatory ducts, and the long, slender spermathecal stalks (Fig.
Female (holotype): Total length 6.52. Carapace 3.16 long, 2.22 wide. Abdomen 3.36 long, 2.25 wide. Eye sizes and interdistances: AME 0.12, ALE 0.17, PME 0.16, PLE 0.17; AME-AME 0.07, AME-ALE 0.02, PME-PME 0.08, PME-PLE 0.07. Leg measurements: I: 11.16 (3.04, 3.76, 2.60 1.76); II: 10.04 (2.84, 3.20, 2.44, 1.56); III: 9.23 (2.56, 2.92, 2.40, 1.35); IV: 12.12 (3.32, 3.80, 3.40, 1.60). Epigyne: atrium large, occupying 2/3 of epigynal plate; teeth long, located in atrial anterior margin, about 2/3 of atrial height; hoods absent; spermathecae simple, located in posterior of epigyne, covered mostly by copulatory ducts; spermathecal stalks long, slender, and convoluted; copulatory ducts broad, occupying 4/5 of epigynal plate (Fig.
Known only from the type locality (Fig.
Holotype ♂: China: Guangxi Zhuang Autonomous Region: Baise City: Debao County, Xingwang Village, Wuming Cave, N23°14'16", E106°38'35", elevation: 632 m, 19.XII.2012, Z.G. Chen and Z. Zhao. leg. Paratypes: 3♀2♂, same data as holotype.
The specific name refers to the type locality; adjective.
The male can be distinguished from F. jiaohanyanensis sp. n. and F. jinlongyanensis sp. n. by the longer and more slender patellar apophysis, the thin conductor, the large, oval dorsal conductor apophysis in ventral view, and the short cymbial furrow (Fig.
Male (holotype): Total length 6.80. Carapace 3.72 long, 2.52 wide. Abdomen 3.08 long, 1.96 wide. Eye sizes and interdistances: AME 0.13, ALE 0.20, PME 0.15, PLE 0.17; AME-AME 0.05, AME-ALE 0.02, PME-PME 0.06, PME-PLE 0.09. Leg measurements: I: 16.01 (4.29, 5.19, 3.97, 2.56); II: 14.56 (3.85, 4.68, 3.78, 2.25); III: 13.50 (3.60, 4.05, 3.90, 1.95); IV: 17.57 (4.50, 5.26, 5.45, 2.36). Palp: patellar apophysis long, subequal to patellar width; RTA with pointed tip, extending beyond distal margin of tibia; LTA long, about 1/3 length of RTA; cymbial furrow short, about 1/5 length of cymbium; conductor broad, with bent apex; dorsal conductor apophysis large; median apophysis small, spoon-like; anterior apophysis broad, with blunt tip; embolus filiform, beginning at 7:30 o’clock position (Fig.
Female (one of paratypes): Total length 7.64. Carapace 3.64 long, 2.53 wide. Abdomen 4.00 long, 2.78 wide. Eye sizes and interdistances: AME 0.13, ALE 0.20, PME 0.15, anterior apophysis PLE 0.17; AME-AME 0.06, AME-ALE 0.04, PME-PME 0.10, PME-PLE 0.11. Leg measurements: I: 13.48 (3.65, 4.60, 3.25, 1.98); II: 12.31 (3.40, 4.05, 3.05, 1.81); III: 11.40 (3.24, 3.60, 3.08, 1.48); IV: 15.46 (4.05, 4.75, 4.88, 1.78). Epigyne: atrium large, occupying 2/3 of epigynal plate; teeth long, located in atrial anterior margin, about 2/3 of atrial height; hoods absent; spermathecae simple, located posteriorly; copulatory ducts broad, occupying 2/3 of epigynal plate, covering most of spermathecae (Fig.
The manuscript benefited greatly from comments by Yuri M. Marusik (Magadan, Russia), Mykola Kovblyuk (Simferopol, Crimea), and Kirill Mikhailov (Moscow, Russia). This study was supported by the National Natural Sciences Foundation of China (31530067, 31471960, 31272280). English of the final draft was kindly checked by Sarah Crews.