A survey of Agroeca Westring, 1861 from China (Araneae: Liocranidae)
Author
Mu, Yannan
The Key Laboratory of Invertebrate Systematics and Application, College of Life Sciences, Hebei University, Baoding, Hebei 071002, P. R. China
Author
Jin, Chi
College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Heibei 056006, P. R. China
Author
Zhang, Feng
The Key Laboratory of Invertebrate Systematics and Application, College of Life Sciences, Hebei University, Baoding, Hebei 071002, P. R. China & The Museum of Hebei University, Baoding, Hebei 071002, P. R. China
dudu06042001@163.com
text
Zootaxa
2019
2019-06-12
4615
1
91
112
journal article
21180
10.11646/zootaxa.4615.1.4
e10913e0-44a0-4eab-9d19-cc655e790372
1175-5326
3995359
0C472D3D-A849-4BED-87D7-127683FFF524
Agroeca tumida
sp. n.
Figs 10
,
11
D–E
Type material.
Holotype
♂
,
CHINA
:
Gansu Province
,
Wuwei City
,
Minqin County
,
Lian’gucheng National Nature Reserve
(
38°25.252′N
,
102°54.633′E
),
1396 m
a.s.l.
,
23 Aug 2017
, leg.
Xiao Zang.
FIGURE 9.
Agroeca nigra
sp. n.
male: A habitus, dorsal view; B same, ventral view; C cephalothorax, ventral view; D cephalothorax, frontal view; E male left palp, prolateral view; F same, ventral view; G same, retrolateral view. Scale bars: 1 mm (A–B); 0.2 mm (C–G).
Etymology.
The specific name is a Latin adjective meaning “inflated”. It refers to the inflated patella of the male palp.
Diagnosis.
This new species can be distinguished from all other
Agroeca
species by the inflated male palpal patella with a thumb-shaped apophysis, the wide and sheet-shaped retrolateral tibial apophysis, and the presence of a small tooth at the base of the RTA.
FIGURE 10.
Agroeca tumida
sp. n.
male, A habitus, dorsal view; B same, ventral view; C cephalothorax, ventral view; D cephalothorax, frontal view; E male left palp, prolateral view; F same, ventral view; G same, retrolateral view. Scale bars: 1 mm (A–B); 0.2 mm (C–G).
Description.
Male.
Holotype
(
Figs 10
A–D) total length 4.31. Carapace 2.24 long, 1.80 wide; abdomen 2.07 long, 1.47 wide. Carapace white, margin grey; fovea dark red, with distinct radial grooves; cervical groove indistinct. Eye sizes and interdistances: ALE 0.11, PLE 0.12, PME 0.12, AME 0.09, AME–AME 0.04, AME–ALE 0.04, PME–PME 0.08, PME–PLE 0.08. MOA 0.24 long, 0.31 posterior wide, 0.20 anterior wide. Sternum white. Legs white, tibia I with two pairs of ventral spines, tibia II ventral with one thin prolateral spine, two or three long retrolateral spines. Metatarsi I and II with two pairs of ventral spines. Measurements of legs: leg I 6.62 (1.84+0.82 +1.66+1.36+0.94), leg II 5.60 (1.40+0.66+1.47+1.19+0.88), leg III 6.10 (1.66+0.95+1.12+1.51+0.86), leg IV 9.10 (2.25+1.03+2.03+2.64+1.15).
Palp (
Figs 10
E–G, 11D–E) white, tegulum brown; embolus clavate, slightly curved, with broad base; conductor membranous, behind embolus; median apophysis short, wide and smooth, base of median apophysis membranous. Tegulum wide, translucent, with faint sperm duct. Patella inflated, with distal thumb-shaped apophysis retrolaterally, tip of which is bifurcate; RTA long and wide, sheet-shaped, distally granular, with small tooth at base.
Female: unknown.
Distribution.
Known only from the
type
locality (
Fig. 17
).