NEW SPECIES OF SPIDERS (ARANEAE) FROM HAINAN ISLAND, CHINA
Author
Alberto T. Barrion
Author
Aimee Lynn A. Barrion-Dupo
Author
Josie Lynn A. Catindig
Author
Sylvia C. Villareal
Author
Ducheng Cai
Author
Qianhua Yuan
Author
Kong Luen Heong
text
UPLB Museum Publications in Natural History
2016
3
1
103
journal article
10.5281/zenodo.269136
aa2af867-04e4-4d4d-b40f-5d3d530c15d2
0119-0084
269136
Tetragnatha zhuzhenrongi
Barrion
, Barrion- Dupo & Heong, new species
[
Figure
37
A-F]
FEMALE.
Holotype
female, total length
6.70 mm
. Cephalothorax length
2.90 mm
, width
1.30 mm
.
Abdomen length 4.00 mm, width 1.00 mm.
Carapace.
Brownish yellow with a distinct V-shaped cephalic projected to the double convex or C-shaped fovea,
2.2
x longer than wide. Chelicerae dark yellow, long and diverging, narrow basally and stout subapically. Promargin bears nine teeth and retromargin with
10
teeth. Pedipalps yellow and slender. Maxillae, labium and sternum all yellow, general shape as in the genus
Tetragnatha
.
Eyes.
In two rows of four, AER longer than
PER
(
0.80
:
0.69 mm
). Eye diameter (mm): AME (
0.11
)> PME = PLE (
0.09
)> ALE (
0.07
). Eye separation (mm): PME-PLE = AME-ALE (
0.14
)> AME-AME (
0.13
)> PME-PME (
0.10
). Clypeus height a little wider than one AME diameter.
Legs.
Yellow except black anterior ends of metatarsi I-IV, long and slender. Tibia I the longest segment, as long as metatarsus I.
Patella
I as long as tibia of pedipalp. Spination in femur
I
1
-
0-3
-
4
and
IV
4
-0-0-0; tibia
I
1
-
0-4
-
4
and
IV
2
-
0-1
-0. Leg formula
1243
.
Leg measurements (mm):
| Leg |
Femur |
Patella
|
Tibia |
Meta- tarsus |
Tarsus |
Total |
| 1 2 |
6.75 4.80 |
0.90 0.80 |
7.20 4.25 |
7.20 4.40 |
1.90 1.25 |
23.95 15.50 |
|
3 4 Pedipalp
|
3.00 5.45 1.20 |
0.45 0.55 0.30 |
1.70 3.50 0.90 |
2.00 4.15 - |
0.75 1.05 1.40 |
7.90 14.70 3.80 |
Abdomen.
Long and yellowish white,
4
x
longer than wide, curved towards posterior one-half (concave in lateral view) and posterior tip strongly rounded. Curved posterior tip of abdomen bears five vertical furrows on each lateral side. Venter dull white.
Epigynal fold tongue-like with a rounded tip, internally bears a pair of oppositely twisted process.
MALE.
Unknown.
no.
Material Examined.
Holotype
female (coll.
Ha
2011
-
8
),
CHINA
, Hainan Island, Haiko,
9
April
2011
,
SCVillareal.
ATBarrion,
JLACatindig
and
Diagnostic Features.
Very similar to
T. extensa
(Linnaeus,
1758
)
but differs mainly from the latter in the following, (
1
) cheliceral dentation, (
2
) genital (epigynum) features, (
3
) leg length, and (
4
) shorter body length and presence of vertical grooves in the lateral sides of abdomen.
Etymology.
Patronym, in recognition of Dr. Zhen Rong’s promotion of ecological engineering project in
China
.