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
Mallinella chengjiaani
Barrion, Barrion-Dupo & Heong
,
new species
[
Figure
53
A-E]
FEMALE.
Holotype
female, total length
7.30mm
. Cephalothorax length
3.60mm
, width
2.40mm
, height
1.70mm
.Abdomen length
4.25mm
, width
2.85mm
and height
2.10mm
.
Carapace.
Reddish black with a median reddish brown band running from eye area to fovea, oblongate and
1.5
x longer than wide. Cephalic area rounded anteriorly. Chelicerae reddish brown,
1.7
x longer than wide (
1.43
:
0.86mm
), broad base
2
x
wider than its apical width. Pedipalps concolorous with brownish legs and sternum, tarsus heavily spinedretrolaterally and ventrally.Maxillae longer than wide, light reddish brown with yellow apical one -third converging.Labium triangular with yellow apex. Chilum triangular. Sternum as long as wide.
Eyes.
In three rows, ALE in the first row of two eyes, PLE and AME in second row of
4
eyes and PME in the third with
2
eyes. Both AER and
PES
rows strongly procurved. PLE and AMEs almost in a straight line. Eye diameter (mm): AME (
0.21
)> ALE (
0.18
)> PME = PLE (
0.16
). Eye separation (mm): PME-PLE (
0.33
)> AME-PLE (
0.14
)> AME-ALE (
0.13
)> PME-PME (
0.12
)> AME-AME (
0.08
)> ALE-PLE (
0.07
). Median ocular quad wider in front than behind (
0.47 mm
vs
0.43 mm
) and
1.19
x longer than frontal width. Clypeus height nearly
3
x
AME diameter along ALE and
3.7
x AME diameter at AME area.
Legs.
Brownish red with dark reddish brown femora I-IV. Tibia I with
4
ventral spines, II with
3
retrolateral and
6
ventral spines, III with
3-6
-
4
-
3
, and IV similar to III except for having
4
retrolateral spines. Femur III and metatarsus III subequal. Leg formula
4132
.
Leg measurements (mm):
Abdomen.
Globose, black dorsally with white longitudinal and irregular venter with two white longitudinal bands. Spinnerets uniformly yellow and relatively short.
| Leg |
Femur |
Patella
|
Tibia |
Meta- tarsus |
Tarsus |
Total |
| 1 2 |
2.10 1.80 |
1.00 0.90 |
1.85 1.45 |
1.65 1.55 |
1.40 1.35 |
8.00 7.05 |
|
3
|
2.00 |
1.00 |
1.40 |
2.00 |
1.30 |
7.70 |
|
4
|
2.50 |
1.15 |
1.95 |
2.80 |
1.75 |
10.15 |
|
Pedipalp
|
1.00 |
0.50 |
0.60 |
- |
0.90 |
3.00 |
Epigynum with transverse lip-like plate and a
pair of subparallelspermathecae with inner coils.
MALE.
Unknown.
Material Examined
.
Holotype
female, (coll. no.
S0
58
),
CHINA
, Hainan Island,
Panja
Town, Songtao Reservoir,
3
April
2011
,
AT
Barrion,
JLA
Catindig, SC Villareal;
paratype
one female (coll. no. La
2
), Laocheng, Hongji Village,
24
April
2012
,
AT
Barrion,
JLA
Catindig, SC Villareal;
paratype
one female (coll. no. Ha
2012
-
1
), Haiko,
9
April
2011
,
AT
Barrion,
JLA
Catindig, SC Villareal.
Diagnostic Features.
Mallinella chengjiaani
Barrion, Barrion-Dupo & Heong
new species
is similar to
M. panchoi
(Barrion & Litsinger,
1992
)
but differs from the latter in having (
1
) elongated and inner-coiled spermathecae, (
2
) femur III as long as metatarsus III, and (
3
) tibial supination. For example, tibia I-IV of female
M. panchoi
has
4
ventral spines while
M. chengjiaani
tibia II has
6
ventral spines.
Etymology.
Patronym, in honor of Dr. Jiaan Cheng, in recognition of his outstanding legacy in improving the ecological management of rice insect pests in
China
, particularly, the highly invasive rice planthoppers.