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
Neobrettus heongi
Barrion & Barrion-Dupo
,
new species
[
Figure
26
A-F]
Leg measurements (mm):
MALE
.
Holotype
male, total length
3.10 mm
. Cephalothorax length
1.70 mm
., width
1.50 mm
. Abdomen length
1.80 mm
, width
1.45 mm
.
Paratype
male, total length
2.80 mm
. Cephalothorax length
1.65 mm
, width
1.60 mm
. Abdomen length
1.70 mm
, width
1.40 mm
.
Paratype
female, total length 4.00 mm. Cephalothorax length
1.90 mm
, width
1.70 mm
. Abdomen length
2.10 mm
, width
2.10 mm
.
Carapace.
Long dark blue green hairs covered the carapace in fresh live specimens. In alcohol, carapace brown except for black eye margins and square-like yellow plate in the eye area. Thoracic area more heavily sclerotized than the cephalic area. Lateral margins of carapace with four vertically straight brown bands. Chelicerae yellow with gray tinge frontomedially,
1.9
x longer than wide and bear a single (unidentate) retromarginal tooth. Promargin with two teeth. Apico-inner chelicerae with
15
or more long and inwardly curved hairs. Pedipalps dark brown except yellow brown patellae. Maxillae yellow almost as wide as long, apicoprolaterals strongly convex, narrow basally and parallel-sided retrolaterally. Labium yellowish brown to yellow, subtruncate anterior margin lined with brown hairs anterolaterally. Sternum yellow with slightly pointed posterior end,
1.44
x longer than wide.
Eyes.
In three rows of 4, 2 and
2
. AER recurved. Eye diameter (mm): AME (
0.39
)> ALE (
0.20
)> PLE (
0.17
)> PME (
0.11
). Clypeus height narrow, barely
0.15
AME diameter.
Legs.
Yellow with longitudinal dark brown bands on retrolateroventral of femur I, venter of
patella
I, basal two-thirds of retrolateroventral and apicoretrolateral one-third of tibia I extended to metatarsus I. Leg II band pattern of
patella
to metatarsus similar to leg I. Prolateroventral of
patella
III to metatarsus III, prolateral of
patella
IV and both laterals of tibia IV bear similar bands. Prolateroventral sides of femur I and tibia I with a thick mass of gray and white semiclub-like hairs forming a fan. Three trichobothria present on tibia I located on basal
0.16
,
0.20
and
0.60
of tibia I length. Leg formula
4123
.
| Leg 1 |
Femur 0.90 |
Patella
0.43
|
Tibia
0.69
|
Meta- tarsus
0.83
|
Tarsus
0.43
|
Total
3.28
|
|
2
|
0.83 |
0.48 |
0.57 |
0.83 |
0.43 |
3.14 |
|
3
|
0.73 |
0.34 |
0.53 |
0.80 |
0.40 |
2.80 |
|
4
|
1.00 |
0.46 |
0.77 |
1.20 |
0.60 |
4.03 |
|
Pedipalp
|
0.60 |
0.16 |
0.26 |
- |
0.86 |
1.88 |
Abdomen.
Ovoid,
1.24
x longer than wide. Color as in carapace in live specimen. In alcohol, it is brown with black hairs anteriorly and dark brown triangular spot posteriorly.
Palpal organ with basal tegulum lobed at
6
o’clock and relatively long femoral organ (M
1
) and rhomboid M
2
present. Ventral tibial apophysis short, with a bulb-like process at tip. Entire tegulum
1.22
x longer than wide.
FEMALE.
Similar to male except for more robust body size and less colorful body hairs. Total length ranges from
3.25
-4.00 mm.
Abdomen.
Prominently ovoid, anteriorly and broadly rounded posteriorly.
narrow
Epigynum with a pair of small oblique copulatory opening on each side of a short scape, spermathecae oblique and diverging towards posterior epigynal margin, copulatory tube M-shaped.
Leg measurements (mm):
| Leg 1 |
Femur 1.06 |
Patella
0.61
|
Tibia
0.69
|
Meta- tarsus
0.56
|
Tarsus
0.47
|
Total
3.39
|
|
2
|
1.08 |
0.57 |
0.66 |
0.51 |
0.46 |
3.28 |
|
3
|
1.17 |
0.46 |
0.60 |
0.62 |
0.57 |
3.42 |
|
4
|
1.23 |
0.57 |
0.91 |
0.94 |
0.60 |
4.25 |
|
Pedipalp
|
0.63 |
0.37 |
0.29 |
- |
0.46 |
1.75 |
Material Examined.
Holotype
male (coll. no. Dap
47
),
CHINA
, Hainan Island, Dapo town, Dapo village,
25
March-
9
April
2012
, ATBarrion, JLACatindig and SCVillareal;
paratypes
2
males
,
3
females
and
3
immatures, same data as
holotype
.
Diagnostic Features.
This species closely resembles
N. tibialis
(Proszynski,
1978
)
but differs from the latter in terms of the (
1
) epigynal structure, (
2
) femoral organs (M
1
and M
2
), (
3
) highly colorful hairs of the males, (
4
) leg measurements--metatarsus I and II subequal & tarsus I as long as II, and (
5
) heavily sclerotized thoracic plate distinct from the cephalic plate.
Etymology.
Patronym, in honor of Dr. Kong Luen Heong,
IRRI
Principal Scientist, Insect Ecologist and Project Leader of the biodiversity exploration and conservation in Hainan Island.