5338
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
56075
10.11646/zootaxa.5338.1.1
e7148a02-ac1a-4172-9071-606bd1e703fc
11755334
8283738
CAA37212-3008-43F4-98DE-94D7A3FFD3B6
Xilithus pugious
sp. nov.
(Ŀẇdzff)
Figs 79–81
Type material.
Holotype
♁,
CHINA
:
Zhejiang Province
:
Lishui City
,
Longquan County
,
Fengyang Mountain National Nature Reserve
(
27°52′49.46″N
,
119°10′10.76″E
,
1494 m
a.s.l.
),
29 Apr. 2016
, leg.
Yannan Mu.
FIGURE 79.
Habitus of
Xilithus pugious
sp. nov.
:
A.
Male holotype, dorsal view;
B.
Same, ventral view.
Etymology.
This specific name is derived from the Latin word “
pugio
”, referring to the dagger-shaped prolateral tegular apophysis; adjective.
Diagnosis.
This new species resembles
X. shijiao
Liu & Li,
2022
in having a similar embolus shape, but can be recognized by: 1) the wider, shorter and dagger-shaped prolateral tegular apophysis (vs thin and long, cf.
Fig. 80C
and fig. 9G in Liu
et al.
[2022]), 2) claviform retroventral tibial apophysis with compressed tip (vs cylindrical tip, cf.
Fig. 80E
and fig. 9I in Liu
et al.
[2022]), 3) retrolateral tibial apophysis bifurcate, with the short branch nearly triangular (vs short branch almost rectangular, cf.
Fig. 80D
and fig. 9I in Liu
et al.
[2022]).
FIGURE 80.
Male left palp of
Xilithus pugious
sp. nov.
:
A.
Prolateral view;
B.
Retrolateral view;
C.
Ventral view;
D.
Dorsal view;
E.
Retro-dorsal view. Abbreviations: E—embolus; FA—femoral apophysis; PTA—prolateral tegular apophysis; RTA— retrolateral tibial apophysis; RvTA—retroventral tibial apophysis; SD—sperm duct.
Description.
Male (
Holotype
): total length 3.58, carapace 1.82 long, 1.57 wide; abdomen 1.76 long, 1.27 wide. Eye sizes and interdistances: AME 0.11, ALE 0.14, PME 0.10, PLE 0.10; AME–AME 0.04, AME–ALE 0.02, ALE– ALE 0.28, PME–PME 0.09, PME–PLE 0.08, PLE–PLE 0.44, ALE–PLE 0.07. EAW 0.59, CRW 0.83, EAW/CRW 0.71, CRW/CW 0.53. MOA 0.26 long, anterior width 0.26, posterior width 0.29.
CH
0.19,
CH
/AME 1.73. Labium 0.24 long, 0.27 wide. Sternum 1.00 long, 0.94 wide. Leg measurements: Ⅰ 6.36 (1.75, 0.60, 1.69, 1.46, 0.86), II 5.61 (1.47, 0.56, 1.40, 1.30, 0.88), III 4.95 (1.36, 0.54, 1.01, 1.25, 0.79), IV 7.06 (1.86, 0.63, 1.66, 1.94, 0.97). Spination: femora I–IV d 1, femur Ⅰ pl 4, tibia Ⅰ pv 7 rv 7, tibia II pv 6 rv 6, metatarsus Ⅰ pv 4 rv 4, metatarsus II pv 4 rv 3.
Coloration. Carapace nearly round, red-brown, with several markings resembling flowing water droplets beside fovea. Abdomen lighter in color than carapace, with large dorsal scutum covering almost entire abdomen, with indistinct light triangular marking anteriorly (
Fig. 79
). Legs brown.
Palp as in
Figs 80–81
. Femur apophysis large, well-developed, located near middle. Retroventral tibial apophysis extending towards retrolateral side, with wide base and compressed tip. Retrolateral tibial apophysis with wide base, tip bifurcated with two branches, long branch lamelliform, curved towards cymbium, short branch nearly triangular. Tegulum wider than cymbium, pyriform; tegular apophysis absent. Sperm duct distinct, tapering from retrolateral side of tegulum to embolus. Embolus long, needle-like, slanting upwards. Conductor absent.
Female: unknown.
Distribution.
China
(
Zhejiang Province
).