Seven new species of Meta C. L. Koch, 1836 (Araneae, Tetragnathidae) from Southwest China
Author
Wang, Lu-Yu
6C219212-8F77-4037-949C-1F17B252BFCE
Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China.
wangluyu1989@163.com
Author
Irfan, Muhammad
81552C4A-93FC-4B6E-8EA1-0B4E38CC6466
Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China.
irfanuos94@yahoo.com
Author
Chen, Hui-Ming
0B0FF1C7-C0A8-4836-B5D0-019F290EB663
Guizhou Institute of Biology, Guiyang 550009, China.
mei0601@126.com;zhangzs327@qq.com
Author
Zhang, Zhi-Sheng
91F0C98D-A307-431A-BAAD-9691F014E6BA
Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, China.
mei0601@126.com;zhangzs327@qq.com
text
European Journal of Taxonomy
2022
2022-08-22
834
117
147
http://dx.doi.org/10.5852/ejt.2022.834.1905
journal article
128002
10.5852/ejt.2022.834.1905
4c24df32-5d1d-468e-a85a-e8c8ae263477
2118-9773
7017596
508297E3-787B-4B87-8C51-FCB35BB1D652
Meta bowo
sp. nov.
urn:lsid:zoobank.org:act:
791783C1-74A5-4987-AC31-4A0C3BEDB30F
Figs 1A–B
,
2–4
,
22
Differential diagnosis
This new species resembles
M. yani
Wang, Zhou, Irfan, Yang & Peng, 2020
(
Wang
et al.
2020a
: figs 1ef, 10a–d, 11a–b, 12a–e) in having the similar conductor of male palp and the similar oval outline of female epigynal plate, but can be distinguished by the following characters: cymbial ectobasal process oval with a depression on distal margin in ventral view, a small tooth medially in retrolateral view in
M. bowo
sp. nov.
(
Figs 2B–C
,
3B–D
), whereas Y-shaped, with a small tooth laterally in retrolateral view in
M. yani
(
Wang
et al.
2020a
: figs 10b–c, 12b); lower outgrowth of metaine embolic apophysis thumb-shaped with blunt end in ventral view in
M. bowo
sp. nov.
(
Fig. 3E
), whereas narrow with sharp pointed end in
M. yani
(
Wang
et al.
2020a
: figs 10c, 12b); spermathecae kidney-shaped in
M. bowo
sp. nov.
(
Figs 2D–E
,
4B
), boxing glove-shaped in
M. yani
(
Wang
et al.
2020a
: figs 11b, 12e); a pair of conspicuous sclerotized corners in
M. bowo
sp. nov.
(
Fig. 4A
) whereas smooth, rounded margin posteriorly in
M. yani
(
Wang
et al.
2020a
: fig 11a).
Etymology
The epithet refers to the
type
locality.
Type material
Holotype
CHINA
•
♂
;
Tibet
,
Bowo County
,
29°52′11.10″ N
,
95°45′22.67″ E
; alt.
2720 m
;
15 Jul. 2020
;
L.Y. Wang
,
T. Yuan
,
P. Liu
and
Y.M. Hou
leg.;
SWUC-T-TEg-02-01
.
Paratypes
CHINA
•
4 ♂♂
; same collection data as for holotype;
SWUC-T-TEg-02-02–05
•
3 ♀♀
; same collection data as for preceding;
SWUC-T-TEg-02-06–08
•
2 ♂♂
;
Bowo County
,
Gu Township
,
Gu Village
;
29°54′38.58″ N
,
95°27′47.94″ E
; alt.
2597 m
;
16 Jul. 2020
;
L.Y. Wang
,
T. Yuan
,
P. Liu
and
Y.M. Hou
leg.;
SWUC-T-TEg-02-09–10
•
1 ♂
;
Bowo County
;
29°52′20.17″ N
,
95°45′18.29″ E
; alt.
2719 m
;
16 Jul. 2020
;
L.Y. Wang
,
T. Yuan
,
P. Liu
and
Y.M. Hou
leg.;
SWUC-T-TEg-02-11
•
2 ♂♂
;
Bowo County
;
29°52′7.60″ N
,
95°45′19.06″ E
; alt.
2700 m
;
8 Aug. 2020
;
L.Y. Wang
,
T. Yuan
,
P. Liu
and
Y.M. Hou
leg.;
SWUC-T-TEg-02-12–13
•
1 ♀
; same collection data as for preceding;
SWUC-T-TEg-02-14
•
1 ♂
;
Bowo County
;
29°51.956′ N
,
95°45.381′ E
; alt.
2810 m
;
18 May 2019
;
L.Y. Wang
,
T. Yuan
,
P. Liu
and
H. Wang
leg.;
SWUC-T-TEg-02-15
.
Description
Male
(
holotype
,
Fig. 1A
)
MEASUREMENTS. Total length 4.94. Prosoma 2.47 long, 1.91 wide; opisthosoma 2.55 long, 1.87 wide. Eye sizes and interdistances: AME 0.15, ALE 0.18, PME 0.16, PLE 0.16; AME–AME 0.10, AME–
Fig. 1. A
.
Meta bowo
sp. nov.
, ♂, holotype (SWUC-T-TEg-02-01), habitus, dorsal view.
B
.
Meta bowo
sp. nov.
, ♀, paratype (SWUC-T-TEg-02-06), habitus, dorsal view.
C
.
Meta cona
sp. nov.
, ♂, holotype (SWUC-T-TEg-03-01), habitus, dorsal view.
D
.
Meta cona
sp. nov.
, ♀, paratype (SWUC-T-TEg-03-02), habitus, dorsal view.
E
.
Meta gyirong
sp. nov.
, ♂, holotype (SWUC-T-TEg-04-01), habitus, dorsal view.
F
.
Meta hongyuan
sp. nov.
, ♂, holotype (SWUC-T-TEg-05-01), habitus, dorsal view.
G
.
Meta hongyuan
sp. nov.
, ♀, paratype (SWUC-T-TEg-05-03), habitus, dorsal view.
H
.
Meta tibet
sp. nov.
, ♂, holotype (SWUC-T-TEg-06-01), habitus, dorsal view.
I
.
Meta tibet
sp. nov.
, ♀, paratype (SWUC-T-TEg-06-05), habitus, dorsal view.
J
.
Meta wanglang
sp. nov.
, ♂, holotype (SWUC-T-TEg-07-01), habitus, dorsal view.
K
.
Meta wanglang
sp. nov.
, ♀, paratype (SWUC-T-TEg-07-03), habitus, dorsal view.
L
.
Meta weining
sp. nov.
, ♂, holotype (SWUC-T-TEg-08-01), habitus, dorsal view.
M
.
Meta weining
sp. nov.
, ♀, paratype (SWUC-T-TEg-08-03), habitus, dorsal view.
ALE 0.13, PME–PME 0.10, PME–PLE 0.16, ALE–PLE 0.02. MOA 0.41 long, front width 0.37, back width 0.45. Clypeus height 0.13.
CHELICERAE. Strong, with three promarginal and four retromarginal teeth.
LEG MEASUREMENTS. I = 12.96 (3.45, 4.53, 3.56, 1.42); II = 9.90 (2.81, 3.38, 2.50, 1.21); III = 5.29 (1.67, 1.61, 1.28, 0.73); IV = 7.12 (2.36, 2.19, 1.86, 0.71). Leg formula: 1243.
OPISTHOSOMA. Oval, with two pairs of sigillae. Both dorsum and venter white, with black markings.
PALP (
Figs 2A–C
,
3A–E
). Cymbial ectobasal process simple, oval, with a deep depression on distal end and a sharp conspicuous tooth in retrolateral view. Paracymbium finger-like, widest medially, with sparse long hairs. Metaine embolic apophysis longer than wide, bifurcated, extending forward; lower outgrowth thumb-shaped with blunt end.
EMBOLUS. Short, abruptly thin with very fine tip. Conductor strong, arising meso-retrolaterally from bulb and extending clockwise, longer than wide, with membranous end.
Female
(
paratype
SWUC-T-TEg-02-06,
Fig. 1B
)
MEASUREMENTS. Total length 8.82. Prosoma 3.09 long, 2.45 wide; opisthosoma 5.72 long, 4.95 wide. Eye sizes and interdistances: AME 0.22, ALE 0.23, PME 0.20, PLE 0.21; AME–AME 0.10, AME–
Fig. 2.
Meta bowo
sp. nov.
A–C
. ♂, holotype (SWUC-T-TEg-02-01).
D–E
. ♀, paratype (SWUC-T- TEg-02-06).
A
. Left palp, prolateral view.
B
. Same, ventral view.
C
. Same, retrolateral view.
D
. Epigyne, ventral view.
E
. Vulva, dorsal view.
Fig. 3.
Meta bowo
sp. nov.
A–
D. ♂, holotype (SWUC-T-TEg-02-01).
E
. ♂, paratype (SWUC-T- TEg-02-02).
A
. Left palp, prolateral view.
B
. Same, ventral view.
C
. Same, retrolateral view.
D
. Same, dorsal view.
E
. Embolus and metaine embolic apophysis, dorsal view.
ALE 0.18, PME–PME 0.10, PME–PLE 0.22, ALE–PLE 0.03. MOA 0.53 long, front width 0.54, back width 0.56. Clypeus height 0.33.
LEG MEASUREMENTS. I = 13.94 (3.88, 4.88, 3.55, 1.63); II = 11.17 (3.29, 3.85, 2.68, 1.35); III = 6.47 (2.00, 2.16, 1.54, 0.77); IV = 8.72 (2.97, 2.94, 1.95, 0.86). Leg formula: 1243. Other morphological characteristics same as in male except opisthosoma light brownish with black markings.
Fig. 4.
Meta bowo
sp. nov.
, ♀, paratype (SWUC-T-TEg-02-06).
A
. Epigyne, ventral view.
B
. Vulva, dorsal view.
EPIGYNE (
Figs 2D–E
,
4A–B
). Posterior margin of epigynal plate wave-like, posterior margin corners sclerotized with a pair of small protrusions.
VULVA (
Figs 2D–E
,
4A–B
). Spermathecae kidney-shaped. Fertilization ducts thick, S-shaped.
Distribution
China
,
Tibet (Bowo)
(
Fig. 22
).