Three new species of the genus Asceua Thorell, 1887 (Araneae: Zodariidae) from Yunnan Province, China
Author
Li, Song-Lin
0000-0002-1127-0781
College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China. & someonelikeyou 33 @ 163. com; https: // orcid. org / 0000 - 0002 - 1127 - 0781
Author
Liu, Ping
College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China.
Author
Peng, Xian-Jin
0000-0002-2614-3910
College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China. & xjpeng @ 126. com; https: // orcid. org / 0000 - 0002 - 2614 - 3910
text
Zootaxa
2022
2022-09-27
5190
1
56
68
journal article
53820
10.11646/zootaxa.5190.1.2
35e73672-b03a-4afa-af12-979d0a88ca8a
1175-5326
7119793
6B27ABAD-CAA3-4021-A9AA-2223F1A47C7B
Asceua digitata
sp. nov.
Figures 4
,
5
,
9
Type material.
Holotype
♂
:
CHINA
,
Yunnan Province
:
Longyang County
,
Bawan Township
,
Nankang forest
station,
24.82260ºN
,
98.78201ºE
,
2060 m
,
23 May 2005
,
Heng-mei Yan
and
Ke-ji Guo
leg. (GKJ018)
Etymology.
The specific epithet is derived from the Latin “
digitata
” (finger-shaped), referring to the fingershaped ventral ramus of RTA, adjective.
Diagnosis.
The male of this new species resembles males of
A. menglun
Song & Kim, 1997
(see
Song & Kim, 1997
, figs 11, 12) and
A. similis
Song & Kim, 1997
(see
Song & Kim, 1997
, figs 16, 17) in having a bifurcate VTA and a V-shaped RTA, but can be distinguished from them by: (1) dorsal ramus of RTA much shorter than ventral ramus in retrolateral view in
A. digitata
sp. nov.
(
Fig 5B
) (vs. dorsal ramus longer than ventral ramus); (2) median apophysis spoon-shaped, distal end located in the inner side of cymbium in ventral view in
A. digitata
sp. nov.
(
Fig 5C
) (vs. hook-shaped, distal end beyond the lateral margin of cymbium).
Description. Male
(
holotype
) (
Fig. 4
). Total length 3.47; carapace 1.60 long, 1.12 wide; abdomen 1.66 long, 1.26 wide. Carapace brown, with a V-shaped dark patch medianly; fovea and radial grooves distinct, cervical grooves indistinct. Clypeus 0.37 high. Eye sizes and interdistances:AME 0.07, ALE 0.09, PME 0.08, PLE 0.10; AME–AME 0.04, AME–ALE 0.06, PME–PME 0.10, PME–PLE 0.11, MOA 0.28 long, anterior width 0.18, posterior width 0.29. Chelicerae yellowish brown, with two promarginal teeth and with one retromarginal tooth. Endites yellow. Labium yellowish brown, triangular. Sternum yellowish brown, edge slightly darker. Legs yellow. Measurements of legs: I, 5.30 (1.49, 1.79, 1.28, 0.74); II, 4.34 (1.22, 1.44, 1.08, 0.60); III, 4.22 (1.21, 1.33, 1.11, 0.57); IV, 5.94 (1.55, 1.83, 1.75, 0.81). Leg formula: 4123. Abdomen oval, dorsum dark brown, median portion with two pairs of light patches medianly, posterior ones much smaller than anterior ones, posterior portion with three transversal light bands medianly; venter yellow, with dense field of short setae anteriorly, a dark chevron posteriorly and one pair of longitudinal dark patches laterally. Spinnerets pale yellow.
FIGURE 4
.
Asceua digitata
sp. nov.
A.
Male holotype, habitus, dorsal view;
B.
Ditto, ventral view.
FIGURE 5.
Asceua digitata
sp. nov.
A.
Male holotype, left palp, prolateral view;
B.
Ditto, retrolateral view;
C.
Ditto, ventral view, the black arrow points to the tooth at the base of conductor;
D.
Median apophysis, the white arrows indicate two lateral processes;
E.
Tibia, ventral view;
F.
Ditto, retrolateral view, the black arrow points to the central dentation. Abbreviations: C, conductor; E, embolus; MA, median apophysis; RTA, retrolateral tibial apophysis; VTA, ventral tibial apophysis; VVTA, ventral ramus of VTA.
Palp (
Fig. 5
). Tibia with two apophyses and a dentation medially; VTA bifurcate, all rami thumb-shaped; RTA bifurcate, ventral ramus longer and finger-shaped, dorsal ramus shorter and dentiform. Median apophysis with two lateral processes. Conductor membranous, with expanded tip and a tooth basally. Embolus slender and whip-shaped, distal portion cross over the conductor in retrolateral view extending clockwise.
Female
unknown.
Distribution.
Known only from the
type
locality (
Fig. 9
).