Research Article |
Corresponding author: Yong-hong Xiao ( yonghong.xiao1@mail.cn ) Corresponding author: Xiang Xu ( xux@hunnu.edu.cn ) Academic editor: Yuri Marusik
© 2022 Ke-Ke Liu, Yuan-hao Ying, Alexander A. Fomichev, Dan-chen Zhao, Wen-hui Li, Yong-hong Xiao, Xiang Xu.
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:
Liu K-K, Ying Y-h, Fomichev AA, Zhao D-c, Li W-h, Xiao Y-h, Xu X (2022) Crab spiders (Araneae, Thomisidae) of Jinggang Mountain National Nature Reserve, Jiangxi Province, China. ZooKeys 1095: 43-74. https://doi.org/10.3897/zookeys.1095.72829
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A list of 34 thomisid species belonging to 21 genera collected in Jangxi Province of China is provided. Five new species are described: Angaeus xieluae Liu, sp. nov. (♂♀), Lysiteles subspirellus Liu, sp. nov. (♀), Oxytate mucunica Liu, sp. nov. (♀), Pharta lingxiufengica Liu, sp. nov. (♀), Stephanopis xiangzhouica Liu, sp. nov. (♀). A new combination is proposed: Ebelingia forcipata (Song & Zhu, 1993) comb. nov. (ex. Ebrechtella Dahl, 1907). Previously unknown females of E. forcipata (Song & Zhu, 1993), Oxytate bicornis Liu, Liu & Xu, 2017, and Xysticus lesserti Schenkel, 1963 are described for the first time. Stephanopis O Pickard-Cambridge, 1869, a genus previously known from Australasia and South America, is recorded from the Asian mainland for the first time.
Aranei, biodiversity, distribution, East Asia, new record, new species, taxonomy
Thomisidae Sundevall, 1833, commonly known as crab spiders, is the seventh largest spider family with a global distribution, comprising 2154 extant species belonging to 171 genera (
The family has never been globally revised, but regional revisions have been made in, e.g., Canada (
Thomisids in China are relatively well studied due to the revisions by
The aims of the present paper are (1) to report findings of 34 species belonging to 21 genera, (2) to provide detailed descriptions of five new species, (3) to provide descriptions of previously unknown females of three species, (4) to propose a new combination, and (5) to provide the first record of the genus Stephanopis from Asian mainland.
More than 300 adult specimens belonging to 34 species from 21 genera were collected from Jinggang Reserve. Specimens were examined using a Zeiss Stereo Discovery V12 stereomicroscope with a Zoom Microscope System. Both male palps and female copulatory organs were detached and examined in 75% ethanol, using a Zeiss Axio Scope A1 compound microscope with a KUY NICE CCD. For SEM photographs, specimens were dried under natural conditions and photographed with a ZEISS EVO LS15 scanning electron microscope. The epigynes were cleared in pancreatin. Specimens including detached male palps and epigynes were stored in 80% ethanol after examination. All the specimens treated in this work are deposited in the Animal Specimen Museum, Life Science of College, Jinggangshan University (ASM-JGSU).
Measurements were taken with the AxioVision software (SE64 Rel. 4.8.3) and are given in millimetres. Terminology of the male and female copulatory organs follows
Leg measurements are given as total length (femur, patella, tibia, metatarsus, tarsus). The abbreviations used in the text are:
Eyes
ALE anterior lateral eye;
AME anterior median eye;
MOA median ocular area;
PLE posterior lateral eye;
PME posterior median eye.
Leg segments
Fe femur;
Mt metatarsus;
Pt Patella;
Ta tarsus;
Ti tibia.
Spination
d dorsal;
p prolateral;
r retrolateral;
v ventral.
Male palp
Mac macroseta;
BTA basal tegular apophysis;
C conductor;
E embolus;
Eb base of the embolus;
Gr embolic groove;
MA median apophysis;
RTA retrolateral tibial apophysis;
RTP ridge-shaped tegular process;
SD sperm duct;
T tegulum;
TR tegular ridge;
Tt tutaculum;
VTA ventral tibial apophysis.
Epigyne
AH anterior hood;
At atrium;
CD copulatory duct;
CO copulatory openings;
ET epigynal teeth;
FD fertilisation duct;
GA glandular appendage;
MS membranous sac;
P lateral pocket;
Se septum;
SP spermatheca;
SS septal stem;
TrR transverse ridge of copulatory opening.
The known crab spider fauna of Jiangxi Province is complemented by 31 additional species belonging to 15 genera and now numbers 38 species in 21 genera. The full list of thomisid spiders recorded in this province is presented in Table
List of Thomisidae species recorded in Jinggang Mountain National Nature Reserve. Genera recorded for the first time are marked with an asterisk (*).
Genus | Species | No. of ♂♂ | No. of ♀♀ | Total |
---|---|---|---|---|
Alcimochthes Simon, 1885 * | A. limbatus Simon, 1885 | 2 | 7 | 9 |
Angaeus Thorell, 1881 * | A. liangweii (Tang & Li, 2010) | 0 | 4 | 4 |
A. xieluae sp. nov. | 2 | 1 | 3 | |
Borboropactus Simon, 1884 * | B. jiangyong Yin et al., 2004 | 1 | 3 | 4 |
Diaea Thorell, 1869 * | D. subdola O. P.-Cambridge, 1885 | 8 | 2 | 10 |
Ebelingia Lehtinen, 2004* | E. forcipata (Song & Zhu, 1993) comb. nov. | 3 | 5 | 8 |
Ebrechtella Dahl, 1907 * | E. pseudovatia (Schenkel, 1936) | 1 | 2 | 3 |
E. tricuspidata (Fabricius, 1775) | 4 | 1 | 5 | |
Epidius Thorell, 1877 * | E. gongi (Song & Kim, 1992) | 2 | 5 | 7 |
Indoxysticus Benjamin & Jaleel, 2010 * | I. tangi Jin & Zhang, 2012 | 2 | 0 | 2 |
Lysiteles Simon, 1895 * | L. minusculus Song & Chai, 1990 | 1 | 0 | 1 |
L. silvanus Ono, 1980 | 10 | 55 | 65 | |
L. subspirellus sp. nov. | 0 | 2 | 2 | |
Misumenops F. O. P.-Cambridge, 1900 * | M. hunanensis Yin, Peng & Kim, 2000 | 1 | 2 | 3 |
Monaeses Thorell, 1869 | M. aciculus (Simon, 1903) | 2 | 1 | 3 |
Oxytate L. Koch, 1878 | O. bicornis Liu, Liu & Xu, 2017 | 1 | 2 | 3 |
O. forcipatus Zhang & Yin, 1998 | 1 | 0 | 1 | |
O. mucunica sp. nov. | 0 | 1 | 1 | |
O. striatipes L. Koch, 1878 | 4 | 0 | 4 | |
Ozyptila Simon, 1864 * | O. nipponica Ono, 1985 | 1 | 0 | 1 |
Pharta Thorell, 1891 * | P. brevipalpus (Simon, 1903) | 23 | 19 | 42 |
P. lingxiufengica sp. nov. | 0 | 1 | 1 | |
Smodicinodes Ono, 1993 * | S. hupingensis Tang, Yin & Peng, 2004 | 0 | 1 | 1 |
Stephanopis O. Pickard-Cambridge, 1869 * | S. xiangzhouica sp. nov. | 0 | 1 | 1 |
Strigoplus Simon, 1885 * | S. guizhouensis Song, 1990 | 1 | 2 | 3 |
Synema Simon, 1864 | S. zonatum Tang & Song, 1988 | 0 | 1 | 1 |
Thomisus Walckenaer, 1805 * | T. labefactus Karsch, 1881 | 36 | 8 | 44 |
Tmarus Simon, 1875 * | T. circinalis Song & Chai, 1990 | 0 | 1 | 1 |
T. longqicus Song & Zhu, 1993 | 3 | 4 | 7 | |
Xysticus C. L. Koch, 1835 | X. croceus Fox, 1937 | 26 | 8 | 34 |
X. hedini Schenkel, 1936 | 2 | 0 | 2 | |
X. kansuensis (Tang, Song & Zhu, 1995) | 0 | 2 | 2 | |
X. kurilensis Strand, 1907 | 5 | 5 | 10 | |
X. lesserti Schenkel, 1963 | 3 | 9 | 12 |
This genus includes 11 species, mainly distributed in tropical Asia (India, Malaysia (Borneo), Myanmar, Vietnam, Singapore, and Indonesia) (
Holotype : ♂, China: Jiangxi Province, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Eling Town, Tangnan Village, 26°43'8.4"N, 114°7'51.6"E, 289 m, 3.X.2015, K. Liu et al. leg. Paratypes: 1 ♀, Longshi Town, Huishi Park, 26°42'32.4"N, 113°56'49.2"E, 242 m, 2.V.2015, K. Liu et al. leg.; 1 ♂, Eling Town, Shenyuan Village, 26°43'26.4"N, 114°7'44.4"E, 277 m, 28.V.2015, K. Liu et al. leg.; 1 ♂, Huangao Town, Zhongqiuba, 4.IV.2015, K. Liu et al. leg.
The specific name is a matronym in honour of Miss Xie Lu from the College of Life Science, Jinggangshan University, who helped us in Longshi Town, where the paratype of the new species was collected.
The male of the new species resembles those of A. rhombifer Thorell, 1890, widely distributed in South-East Asia, in having embolus (E) with widened tip and retrolateral tibial apophysis (RTA) as long as tibia but can be distinguished from it by having embolus with bill-shaped tip and widened base and the median apophysis (MA) shifted retrolaterally (vs. embolus with narrow base and the median apophysis starting from the centre of the tegulum) (cf. Figs
Angaeus xieluae sp. nov., male holotype. A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral view E same, retrolateral view. Abbreviations: C – conductor, E – embolus, Eb – base of the embolus, MA – median apophysis, RTA – retrolateral tibial apophysis, SD – sperm duct. Scale bars: 0.5 mm (A, B), 0.1 mm (C–E).
SEM micrographs of Angaeus xieluae sp. nov. male palp (holotype). A prolatero-ventral view B ventral view C same, details of bulb D same, details of retrolateral tibial apophysis E retrolateral view F retrolateral view, slightly dorsal G same, details of embolus. Abbreviations: C – conductor, E – embolus, Eb – base of the embolus, Gr – groove, MA – median apophysis, RTA – retrolateral tibial apophysis. Scale bars: 0.1 mm (A–C, E, F), 20 μm (D, G).
Male (holotype). Habitus as in Fig.
Colouration. Carapace reddish brown. Chelicerae dark brown. Endites and labium reddish brown. Sternum yellow. Legs yellow brown, with several dark spots near bases of setae; legs III and IV paler, with pale and dark colours. Abdomen reddish brown, medially with arch-shaped dark mark.
Palp (Figs
Female. Habitus as in Fig.
Angaeus xieluae sp. nov., female paratype. A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: AH – anterior hood, At – atrium, CD – copulatory duct, CO – copulatory opening, ET – epigynal teeth, FD – fertilisation duct, SP – spermatheca, SS – septal stem. Scale bars: 0.5 mm (A, B), 0.1 mm (C, D).
Colouration as in Fig.
Epigyne (Fig.
Known only from the type locality in Jiangxi Province of China (Fig.
This genus includes only two species, both from East Asia (
Misumenops forcipatus
Song & Zhu, in Song, Zhu & Li, 1993: 879, fig. 50A–C (♂);
Ebrechtella forcipata: Lehtinen 2004: 165.
China: Jiangxi Province, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve: 1 ♂: Luofu Town, Changguling Forest Farm, 26°38'28"N, 114°14'6"E, 583 m, 5.X.2014, K. Liu et al. leg.; 1 ♀, Luofu Town, Pingtou Village, Changguling Forest Farm, road side, 26°39'18"N, 114°14'2.4"E, 438 m, 5.X.2014, K. Liu et al. leg.; 2 ♂, Ciping Town, Xingzhou Village, Baimukeng, 26°31'4.8"N, 114°11'9.6"E, 669 m, 3.X.2014, K. Liu et al. leg.; 1 ♀, Ciping Town, Xiazhuang Village, Zhushachong Forest Farm, 26°33'7.2"N, 114°11'27.6"E, 683 m, 4.X.2014, K. Liu et al. leg.; 2 ♀, Luofu Town, Pingtou Village, Tea forest, 26°38'14.4"N, 114°13'48"E, 419 m, 5.X.2014, K. Liu et al. leg.; 1 ♀, Huang’ao Town, Shantang Group, 26°28'22.8"N, 114°13'55.2"E, 315 m, 5.X.2015, K. Liu et al. leg.
The species differs from both congeners by the retrolateral tibial apophysis (RTA) with two equally long and thick branches (vs. dorsal branch much thinner and shorter than the ventral) (cf. Figs
Ebelingia forcipata (Song & Zhu, 1993), male. A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral view E same, retrolateral view. Abbreviations: E – embolus, RTA – retrolateral tibial apophysis, SD – sperm duct, TR – tegular ridge, VTA – ventral tibial apophysis. Scale bars: 0.5 mm (A, B), 0.1 mm (C–E).
Male. Habitus as in Fig.
Colouration (Fig.
Palp (Figs
SEM micrographs of Ebelingia forcipata (Song & Zhu, 1993) comb. nov., male palp. A ventral view B same, details of tibial apophysis C same, details of retrolateral tibial apophysis D same, details of embolus E retrolateral view F same, details of tibial apophyses. Abbreviations: E – embolus, RTA – retrolateral tibial apophysis, TR – tegular ridge, VTA – ventral tibial apophysis. Scale bars: 0.1 mm (A, E), 10 μm (B, C, D, F).
Female. Habitus as in Fig.
Ebelingia forcipata (Song & Zhu, 1993), female. A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: AH – anterior hood, At – atrium, CD – copulatory duct, CO – copulatory opening, FD – fertilisation duct, SP – spermatheca. Scale bars: 0.5 mm (A, B), 0.1 mm (C, D).
Colouration (Fig.
Epigyne (Fig.
China: Jiangxi and Fujian Provinces (
The left leg I was lost when we reviewed the holotype after photography.
This species clearly belongs to Ebelingia due to the markedly bifurcated retrolateral tibial apophysis, short embolus, broad anterior hood, and kidney-shaped spermathecae.
This genus includes 60 species, mainly distributed in eastern Asia. Half of them are recorded from China, but there are still 13 species known only from females in China, and three from males. Most of them (ten species) are recorded from Yunnan Province. No species were recorded from Jiangxi Province.
Holotype : ♀, China, Jiangxi Province, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Ciping Town, Dajing Village, Jingzhu Mountain, 26°30'10.8"N, 114°5'16.8"E, 1085 m, 20.XII.2015, K. Liu et al. leg. Paratype: 1♀, same data as for holotype, 26°29'42"N, 114°4'44.4"E, 1158 m, 13.VIII.2016, K. Liu et al. leg.
The specific name is derived from that of a similar species, L. spirellus Tang, Yin, Peng, Ubick & Griswold, 2008; adjective.
The new species is similar to L. auriculatus Tang, Yin, Peng, Ubick & Griswold, 2008 and L. spirellus Tang, Yin, Peng, Ubick & Griswold, 2008 in having coiling spermathecae (SP), but differs from them by the carapace lacking pale median band (vs. present), abdomen with three pairs of large, touching, dark brown markings (Fig.
Lysiteles subspirellus sp. nov., female. A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: At – atrium, CD – copulatory duct, CO – copulatory opening, FD – fertilisation duct, Se –septum, SP – spermatheca. Scale bars: 0.5 mm (A, B), 0.1 mm (C, D).
Habitus as in Fig.
Colouration (Fig.
Epigyne (Fig.
Male. unknown.
At present, L. digitatus Zhang, Zhu & Tso, 2006, L. distortus Tang, Yin, Peng, Ubick & Griswold, 2008, and L. torsivus Zhang, Zhu & Tso, 2006 are known only from the males in mainland China; therefore, the new species may be conspecific with one of these three species.
Known only from the type locality in Jiangxi Province of China (Fig.
This genus includes 28 species distributed mainly in Asia and Africa. Half of them have been recorded from China, mainly in Yunnan and Guangxi provinces (
Oxytate bicornis Liu, Liu & Xu, 2017: 194, figs 1A–D, 2A–C (♂).
China: holotype ♂, Jiangxi Province, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Ciping Town, Dajing village, 26.566°N, 114.125°E, 922 m, 13.VII.2014, K. Liu et al. leg.; 2 ♀, other data as in holotype; 1 ♀, Longshi Town, Yuankou Village, 26°41'31.2"N, 113°57'10.8"E, 265 m, 1.V.2015, K. Liu et al. leg.; 1 ♀, Huang’ao Town, Shantang Group, 26°28'26.4"N, 114°13'58.8"E, 306 m, 5.IV.2015, K. Liu et al. leg.
Female of this species similar to that of O. bhutanica Ono, 2001 and O. mucunica sp. nov. in having vulva with M-shaped pattern formed by copulatory ducts (CD) and spermathecae (SP), but differs from both species by the copulatory openings (CO) oriented outwards (vs. inwards or anteriorly) and copulatory ducts (CD) 2 × thinner than spermathecae (SP) (vs. equal in size) (cf. Fig.
Oxytate bicornis Liu, Liu & Xu, 2017, female. A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: CD – copulatory duct, CO – copulatory opening, FD – fertilisation duct, P – pocket, SP – spermatheca. Scale bars: 0.5 mm (A, B), 0.1 mm (C, D).
Female. Habitus as in Fig.
Colouration. Carapace, chelicerae, endites, sternum, legs, and abdomen yellowish.
Epigyne (Fig.
Male (Fig.
Oxytate bicornis Liu, Liu & Xu, 2017, male. A habitus, dorsal view B palp, ventral view C same, prolateral view D same, retrolateral view. Abbreviations: E – embolus, RTA – retrolateral tibial apophysis, SD – sperm duct, TR – tegular ridge, VTA – ventral tibial apophysis. Scale bars: 1 mm (A), 0.5 mm (B–D).
Some females were collected in the type locality and others raised from juveniles. Newly collected females have general appearance and leg spination similar to the holotype male. Based on this, we consider them conspecific. This judgment will be confirmed or rejected in future when both sexes are collected together, simultaneously.
Known only from Jiangxi Province, China (Fig.
Holotype : ♀, China, Jiangxi Province, Ji’an City, Jinggangshan City, Jinggang Mountain National Nature Reserve, Mucun Town, Guibian Village, 26°38'32.11"N, 113°53'51.99"E, 322 m, 31.VII.2019, K. Liu et al. leg.
The specific name is derived from the type locality, Mucun Town.
Female of the new species is similar to those of O. bhutanica Ono, 2001 and O. bicornis in having vulva with M-shaped pattern formed by copulatory ducts (CD) and spermathecae (SP), but differ from both species by the copulatory openings oriented anteriorly (vs. outwards or inwards) (cf. Fig.
Habitus as in Fig.
Colouration (Fig.
Epigyne (Fig.
Male. Unknown.
While many juveniles were collected and reared in the lab, only one female reached maturity.
The new species could potentially be a synonym of one of the species known only from males and occurring in China: O. clavulata Tang, Yin & Peng, 2008 (Yunnan) or O. placentiformis Wang, Chen & Zhang, 2012 (Guangxi).
Known only from the type locality in Jiangxi Province of China (Fig.
This genus includes nine species, the majority of which are distributed in Southeast Asia (
Holotype : ♀, China, Jiangxi Province, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Ciping Town, Dajing Village, Lingxiufeng Scenic Spot, 26°34'16.72"N, 114°07'00.56"E, 971 m, 1.X.2018, K. Liu et al. leg.
The specific name is derived from the type locality, Lingxiufeng Scenic Spot; adjective.
The female of P. lingxiufengica is similar to that of P. tangi Wang, Mi & Peng, 2016 in having well-developed transverse ridge of copulatory openings (TrR) (= atrial intermediate margin of
Pharta lingxiufengica sp. nov., female holotype. A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: CO – copulatory opening, FD – fertilisation duct, SP – spermatheca, TrR – transverse ridge of copulatory openings. Scale bars: 0.5 mm (A, B), 0.1 mm (C, D).
Habitus as in Fig.
Colouration (Fig.
Epigyne (Fig.
Male. unknown.
There is only one species in the region known from the male only, P. koponeni Benjamin, 2014 (Thailand); however, it is unlikely to be conspecific with our female because of differences in colouration, and the long distance between type localities.
Known only from the type locality in Jiangxi Province of China (Fig.
This genus includes 23 species (
Holotype : ♀, China, Jiangxi Province, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Luofu Town, Xiangzhou Village, Fengshuping Group, 26°36'10.8"N, 114°15'28.8"E, 412 m, 5.VIII.2015, leg. K. Liu et al. leg.
The specific name refers to the type locality, Xiangzhou Village.
The new species is similar to S. nigra O. Pickard-Cambridge, 1869 by having slit-like copulatory openings (CO), but differs by lacking lateral sclerotised margins of copulatory openings (vs. lateral margins sclerotised), touching membranous sacs (vs. separated) and slightly separated spermathecae (vs. touching) (cf. Fig.
Female. Habitus as in Fig.
Stephanopis xiangzhouica sp. nov., female holotype. A habitus, dorsal view B same, ventral view C cephalic part, dorsal view D left chelicera, mesal view E left leg I, prolateral view F patella I, prolateral view G abdomen, dorsal view. Scale bars: 1 mm (A, B), 0.1 mm (C, D, F), 0.5 mm (E, G).
Colouration as in Fig.
Epigyne (Fig.
Male. unknown.
Known only from the type locality in Jiangxi Province of China (Fig.
Xysticus is one of the most diverse genera in Thomisidae with 293 named species (
Xysticus lesserti
Schenkel, 1963: 219, fig. 124a–c (♂);
China, Jiangxi Province: 1 ♀, Ji’an City, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Ciping Town, Xiazhuang Village, Zhushachong Forest Farm, 26°33'3.6"N, 114°11'20.4"E, 630 m, 4.X.2014, K. Liu et al. leg.; 1 ♀, Ciping Town, Tongmuling, 26°37'12"N, 114°11'45.6"E, 780 m, 2.VIII.2014, Ke-ke Liu et al. leg.; 1 ♀, Ciping Town, Xiaojing Village, 26°35'20.4"N, 114°8'13.2"E, 913 m, 2.VIII.2014, K. Liu et al. leg.; 1 ♀, Ciping Town, Dajing Village, General of forest, 26.566°N, 114.125°E, 922 m, 13.VII.2014, K. Liu et al. leg.; 1 ♂, 1 ♀, Ciping Town, Dajing Village, 26°33'21.70"N, 114°07'20.08"E, 906 m, 31.VII.2019, K. Liu et al. leg.; 1 ♀, Dongshang Town, Jiangshan Village, Qilichuan, 26°46'18.91"N, 113°51'55.59"E, 666 m, 30.VII.2019, other data as previous; 1 ♀, 26°46'23.73"N, 113°52'02.83"E, 665 m, K. Liu et al. leg.; 2 ♂, Longshi Town, Bashang Village, 26°39'58.29"N, 114°04'35.34"E, 491 m, 29.VII.2019, K. Liu et al. leg.; 1 ♀, Suichuan County, Gaoping Town, Gaoping Bus Station, 26°02'49.6"N, 114°07'2.8"E, 482 m, 1.VIII.2019, K. Liu et al. leg.; 1 ♀, Ciping Town, Wuzhifeng Scenic Spot, 26°32'48.23"N, 114°09'10.61"E, 811 m, 2.X.2018, K. Liu et al. leg.
The female of this species has remained undescribed till now and the male was confused with X. kurilenis Strand, 1907 in the past until
The female of this species is similar to that of X. kurilensis in having two large oval atria (At) divided by septum (Se). Female of X. lesserti can be differentiated from those of sibling species by touching atria (vs. not touching) (cf. Fig.
Xysticus lesserti Schenkel, 1963, female. A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: At – atrium, CD – copulatory duct, CO – copulatory opening, FD – fertilisation duct, Se –septum, SP – spermatheca. Scale bars: 1 mm (A, B), 0.1 mm (C, D).
Female. Habitus as in Fig.
Colouration (Fig.
Epigyne (Fig.
Male. Habitus as in Fig.
Xysticus lesserti Schenkel, 1963, male. A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral view E same, retrolateral view. Abbreviations: BTA – basal tegular apophysis, E – embolus, MA – median apophysis, RTA – retrolateral tibial apophysis, RTP – ridge-shaped tegular process, Tt – tutaculum, VTA – ventral tibial apophysis. Scale bars: 1 mm (A, B), 0.1 mm (C–E).
Palp (Figs
SEM micrographs of Xysticus lesserti Schenkel, 1963, male palp. A prolateral view B ventral view C ventral view, slightly retrolateral D retrolateral view. Abbreviations: BTA – basal tegular apophysis, E – embolus, MA – median apophysis, RTA – retrolateral tibial apophysis, RTP – ridge-shaped tegular process, T – tegulum, Tt – tutaculum, VTA – ventral tibial apophysis. Scale bars: 0.1 mm.
We thank Zhan-Feng Wang, Zhi-Wu Chen, Ze-Yuan Meng, Xiao-Ping Huang, Pei-chong Gong, Yu-Bao Tang, Wen-Jun Xie, Sha Wu, Guang-feng Li, Ce Xu, Shi-Cong He, Yi-Fan Zhao, Huo-kai Wang (all from Jinggangshan University), and Wen Sun (Jinggangshan Economic and Trade School) for their assistance during the fieldwork. We also thank Dr. Suresh P. Benjamin and Christoph Muster for improving earlier drafts of this manuscript. We are grateful to the reviewers especially Dr. David Court and the subject editor Dr. Yuri Marusik for providing significant comments, and Dr Nathalie Yonow and Victor Fet for improving the English of the manuscript. The work of all authors except Alexander A. Fomichev was supported by the Natural Science Foundation of China (32000301, 32160243, 32070429) and PhD Research Startup Foundation of Jinggangshan University (JZB2010).