Tangguoa gen. nov., one new genus of daddy-long-leg spiders (Araneae: Pholcidae) from southern China
Author
Yao, Zhiyuan
0000-0002-1631-0949
College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China & yaozy @ synu. edu. cn; https: // orcid. org / 0000 - 0002 - 1631 - 0949
yaozy@synu.edu.cn
Author
Luo, Yiping
0000-0002-9001-3571
College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China & luoyp 2000 @ outlook. com; https: // orcid. org / 0000 - 0002 - 9001 - 3571
luoyp2000@outlook.com
Author
Li, Shuqiang
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
text
Zootaxa
2021
2021-02-25
4938
1
131
140
journal article
8040
10.11646/zootaxa.4938.1.7
1ff1e1ee-8a21-4026-842d-4a973c995bfc
1175-5326
4561477
8450237F-B985-4FEE-82FC-93B06FC635D1
Tangguoa tongguling
Yao & Li
sp. nov.
Figs 4–5
Type material.
Holotype
:
male (IZCAS-Ar41643), Tongguling (
19°40.303′N
,
111°1.068′E
,
elevation
337 m
),
Longlou Town
,
Wenchang
,
Hainan
,
China
,
22 March 2012
,
Z. Chen
leg.
Paratypes
:
1 male
(IZCAS-Ar41644) and
2 females
(IZCAS-Ar41645–41646), same data as holotype
.
Etymology.
The specific name refers to the
type
locality and is a noun in apposition.
Diagnosis.
This species can be easily distinguished from
T. laibin
sp. nov.
by procursus with sclerotized, narrow and curved ventral apophysis (arrow
2 in
Fig. 4C
; absent in
T. laibin
sp. nov.
,
Fig. 2C
), wide, sclerotized dorsal apophysis with scales (arrow
4 in
Fig. 4C
; angular dorsal apophysis without scales in
T. laibin
sp. nov.
, arrow
3 in
Fig. 2C
), and retrolateral apophysis with scales and pointed sclerite (arrow
5 in
Fig. 4C
; two retrolateral processes without scales and sclerite in
T. laibin
sp. nov.
, arrows in
Fig. 2D
), by male chelicerae with frontal apophyses with scales (arrow in
Fig. 5C
; absent in
T. laibin
sp. nov.
,
Fig. 3C
), by external female genitalia with two postero-lateral apophyses (arrows
1–2 in
Fig. 5A
; absent in
T. laibin
sp. nov.
,
Fig. 3A
), by vulval pore plates anteriorly wide and posteriorly narrow and blunt (
Fig. 5B
; anteriorly wide and posteriorly sharply pointed in
T. laibin
sp. nov.
,
Fig. 3B
), and by opisthosoma with dorsal and lateral spots (
Figs 5
E–H; with posterior marks in
T. laibin
sp. nov.
,
Figs 3
E–H).
Description. Male (
holotype
):
Total length 2.03 (2.23 with clypeus), carapace 0.67 long, 0.96 wide, opisthosoma 1.36 long, 0.94 wide. Leg I: – (4.34 + 0.36 + 4.50 + 6.45 + –), leg II: 10.42 (3.16 + 0.35 + 2.78 + 3.02 + 1.11), leg III: 8.48 (2.42 + 0.31 + 2.04 + 2.90 + 0.81), leg IV: 11.05 (3.28 + 0.33 + 2.73 + 3.93 + 0.78); tibia I L/d: 49. Distance PME-PME 0.16, diameter PME 0.11, distance PME-ALE 0.03, AME absent. Sternum slightly wider than long (0.58/0.48). Habitus as in
Figs 5
E–F. Carapace yellowish, with brown margins and wide, brown median stripe; ocular area brown; clypeus yellowish, with brown lateral marks; sternum brown. Legs brownish, but slightly whitish on distal parts of femora and tibiae, with distinct darker rings on subdistal parts of femora and proximal and subdistal parts of tibiae. Opisthosoma yellowish, with large, brown, dorsal and lateral spots. Ocular area slightly elevated and separated from rest of carapace. Thoracic furrow shallow, but distinct. Chelicerae (
Figs 5
C–D) with pair of proximo-lateral apophyses (arrow pa in
Figs 5
C–D) with lateral apophyses and scales (arrow in
Fig. 5D
), pair of frontal apophyses with scales (arrow in
Fig. 5C
), and pair of distal apophyses with row of teeth each (arrow da in
Figs 5
C–D). Pedipalps as in
Figs 4
A–B; trochanter with retrolateral apophysis and ventral apophysis; femur strongly curved dorsally, with retrolateral apophysis; patella large; procursus simple proximally but complex distally, with sclerotized prolatero-ventral apophysis (arrow
1 in
Fig. 4C
), sclerotized, narrow and curved ventral apophysis (arrow
2 in
Fig. 4C
), sclerotized distal apophysis with scales (arrow
3 in
Fig. 4C
), wide, sclerotized dorsal apophysis with scales (arrow
4 in
Fig. 4C
), and retrolateral apophysis with scales and pointed sclerite (arrow
5 in
Fig. 4C
); bulb simple, without other projections except for embolus. Retrolateral trichobothrium of tibia I at 11% proximally; legs with short vertical setae on metatarsi and tarsi, without spines or curved setae.
FIGURE 4.
Tangguoa tongguling
sp. nov.
, holotype male. A–B. Pedipalp (A. Prolateral view; B. Retrolateral view); C–D. Distal part of procursus (C. Prolateral view, arrows 1–5 indicate prolatero-ventral, ventral, distal, dorsal, and retrolateral apophysis, respectively; D. Retrolateral view). b = bulb, e = embolus, pr = procursus. Scale bars: 0.10 (A–B), 0.05 (C–D).
FIGURE 5.
Tangguoa tongguling
sp. nov.
, holotype male (C–F) and paratype female (A–B, G–H). A. External female genitalia, ventral view, arrows 1–2 indicate postero-lateral apophyses; B. Vulva, dorsal view; C–D. Chelicerae (C. Frontal view, arrow indicates frontal apophysis; D. Lateral view, arrow indicates lateral apophysis); E–H. Habitus (E, G. Dorsal view; F. Lateral view; H. Ventral view). da = distal apophysis, ma = postero-median apophysis, pa = proximo-lateral apophysis, pp = pore plate. Scale bars: 0.10 (A–D), 0.50 (E–H).
Female:
Similar to male, habitus as in
Figs 5
G–H. Total length 2.28 (2.43 with clypeus), carapace 0.79 long, 0.98 wide, opisthosoma 1.49 long, 1.06 wide; tibia I: 4.48; tibia I L/d: 49. Distance PME-PME 0.15, diameter PME 0.11, distance PME-ALE 0.03, AME absent. Sternum slightly wider than long (0.62/0.52). External female genitalia (
Fig. 5A
) brown, with postero-median apophysis (much longer than wide, arrow ma in
Fig. 5A
) provided with pointed tip and two pointed postero-lateral apophyses (arrows
1–2 in
Fig. 5A
), without pockets. Vulva (
Fig. 5B
) with curved anterior arch and pair of anteriorly wide and posteriorly narrow and blunt pore plates.
Variation:
Tibia I in male
paratype
: 4.52. Tibia I in another female
paratype
: 4.56.
Natural history.
The species was found in the leaf litter.
Distribution.
China
(
Hainan
,
type
locality;
Fig. 1
).