Further additions to the guardstone spider fauna from China (Araneae: Phrurolithidae)
Author
Mu, Yannan
The Key Laboratory of Zoological Systematics and Application, Institute of Life Science and Green Developed, Hebei University, Baoding, Hebei 071002, P. R. China & 15188605531 @ 163. com; https: // orcid. org / 0000 - 0002 - 2504 - 673 X
Author
Zhang, Feng
The Key Laboratory of Zoological Systematics and Application, Institute of Life Science and Green Developed, Hebei University, Baoding, Hebei 071002, P. R. China
text
Zootaxa
2023
2023-08-25
5338
1
1
104
http://dx.doi.org/10.11646/zootaxa.5338.1.1
journal article
10.11646/zootaxa.5338.1.1
e7148a02-ac1a-4172-9071-606bd1e703fc
11755334
8283738
CAA37212-3008-43F4-98DE-94D7A3FFD3B6
Xilithus wangi
sp. nov.
(ƗOiẇdzff)
Figs 82–84
Type material.
Holotype
♁,
CHINA
:
Sichuan Province
,
Aba Tibetan
and
Qiang Autonomous Prefecture
,
Mao County
,
Mountain Ecosystem Positioning Station
(
31°41.539´N
,
103°53.809´E
,
1885 m
a.s.l.
),
26 May 2015
, leg.
Luyu Wang.
Paratypes
: 2 ♁
2 ♀
, with same data as holotype
.
Etymology.
The specific name is taken from the family name of Luyu Wang, the collector of this new species.
Diagnosis.
This new species resembles
X. pseudostella
(
Fu, Jin & Zhang, 2014
)
in having a similarly shaped embolus and large epigynal atrium, but can be recognized by: 1) the wider and shorter prolateral tegular apophysis (vs thin and long, cf.
Fig. 83B
and fig. 4B in
Fu
et al.
[2014]
), 2) the absence of a retroventral tibial apophysis (vs presence, cf.
Fig. 83B, C
and fig. 4B, C in
Fu
et al.
[2014]
), and 3) the smaller and rectangular-shaped bursa (vs large and oval, cf.
Fig. 83G
and fig. 4E in
Fu
et al.
[2014]
).
FIGURE 82.
Habitus of
Xilithus wangi
sp. nov.
:
A.
Male holotype, dorsal view;
B.
Same, ventral view;
C.
Female paratype, dorsal view;
D.
Same, ventral view.
FIGURE 83.
Copulatory organs of
Xilithus wangi
sp. nov.
:
A.
Male left palp, prolateral view;
B.
Same, ventral view;
C.
Same, retrolateral view;
D.
Same, dorsal view;
E.
Same, retro-dorsal view;
F.
Epigyne, ventral view;
G.
Same, dorsal view. Abbreviations: E—embolus; PTA—prolateral tegular apophysis; RTA—retrolateral tibial apophysis; SD—sperm duct; B— bursa; CO—copulatory opening; CD—copulatory duct; FD—fertilization duct; GA—glandular appendage; S—spermathecae.
Description.
Male (
Holotype
): total length 3.26, carapace 1.62 long, 1.44 wide; abdomen 1.64 long, 1.23 wide. Eye sizes and interdistances:AME 0.10, ALE 0.09, PME 0.13, PLE 0.10; AME–AME 0.04, AME–ALE 0.01, ALE– ALE 0.24, PME–PME 0.06, PME–PLE 0.06, PLE–PLE 0.37, ALE–PLE 0.05. EAW 0.52, CRW 0.82, EAW/CRW 0.65, CRW/CW 0.56. MOA 0.27 long, anterior width 0.22, posterior width 0.25.
CH
0.15,
CH
/AME 1.50. Labium 0.22 long, 0.27 wide. Sternum 0.93 long, 0.89 wide. Leg measurements: Ⅰ 5.78 (1.59, 0.62, 1.53, 1.26, 0.78), II 4.83 (1.36, 0.54, 1.14, 1.08, 0.71), III 4.22 (1.16, 0.49, 0.84, 1.06, 0.67), IV 6.30 (1.73, 0.56, 1.40, 1.67, 0.94). Spination: femora I–IV d 1, femur Ⅰ pl 3, femur II pl 1, tibia Ⅰ pv 7 rv 7, tibia II pv 7 rv 6, metatarsus Ⅰ–II pv 4 rv 3.
FIGURE 84.
Copulatory organs of
Xilithus wangi
sp. nov.
:
A.
Male left palp, ventral view;
B.
Same, retrolateral view;
C.
Same, dorsal view;
D.
Same, retro-dorsal view;
E.
Epigyne, ventral view;
F.
Same, dorsal view. Scale bars: 0.2 mm.
Coloration. Carapace red brown, with several shapes resembling flowing water droplets beside fovea. Abdomen lighter color than carapace, with large dorsal scutum covered nearly entire abdomen (
Fig. 82A, B
).
Palp as in
Figs 83A–E
,
84A–C
. Retrolateral tibial apophysis base wide, narrower tip digit-shaped and curved towards cymbium; retroventral tibial apophysis absent. Tegulum wider than cymbium, pyriform-shaped; tegular apophysis absent. Sperm duct indistinct, tapering from retrolateral of tegulum to embolus. Embolus long, needle-like, transverse but curved upwards at end. Conductor absent.
FIGURE 85.
Habitus of
Xilithus xiaojing
Liu & Li, 2022
:
A.
Male, dorsal view;
B.
Same, ventral view;
C.
Female, dorsal view;
D.
Same, ventral view.
Female (
Paratype
): total length 4.41, carapace 1.85 long, 1.68 wide; abdomen 2.56 long, 1.63 wide. Eye sizes and interdistances: AME 0.11, ALE 0.14, PME 0.11, PLE 0.11; AME–AME 0.04, AME–ALE 0.01, ALE–ALE 0.28, PME–PME 0.08, PME–PLE 0.06, PLE–PLE 0.39, ALE–PLE 0.08. EAW 0.58, CRW 0.90, EAW/CRW 0.64, CRW/CW 0.54. MOA 0.29 long, anterior width 0.25, posterior width 0.29.
CH
0.15,
CH
/AME 1.36. Labium 0.22 long, 0.31 wide. Sternum 1.14 long, 1.07 wide. Leg measurements: Ⅰ 7.03 (1.91, 0.66, 1.95, 1.60, 0.91), II 5.91 (1.63, 0.62, 1.48, 1.29, 0.89), III 5.01 (1.34, 0.57, 0.99, 1.30, 0.81), IV 7.72 (2.10, 0.65, 1.79, 2.07, 1.11). Spination: femora I–IV d 1, femora Ⅰ–II pl 3, tibia Ⅰ pv 7 rv 8, tibia II pv 7 rv 5, metatarsus Ⅰ pv 4 rv 4, metatarsus II pv 4 rv 3. Other characters as for male, except dorsal scutum absent, color darker and body larger (
Fig. 82C, D
).
Epigyne as in
Figs 83F–G
,
84D–E
.Epigynal plate weakly sclerotized,with pair of shallow concavities.Copulatory openings small, located at anterior of atrium. Copulatory ducts slender, slightly curved. Bursa nearly rectangular. Glandular appendages mastoid-shaped. Connecting tubes short, wider than copulatory ducts. Spermathecae globular, widely separated. Fertilization ducts located at anterior margin of spermathecae.
Distribution.
China
(
Sichuan Province
).