Crab spiders from Xishuangbanna, Yunnan Province, China (Araneae, Thomisidae) 2703
Author
Tang, Guo
Author
Li, Shuqiang
text
Zootaxa
2010
2010-12-03
2703
1
105
journal article
11755334
Spilosynema mancum
sp. nov.
Figs 55–57
Type material.
Holotype
:
1 ♂
,
CHINA
:
Yunnan
:
Xishuangbanna
,
Mengla County
,
Menglun Town
,
Menglun Nature Reserve
,
Lvshilin Forest
Park
,
Limestone
tropical seasonal rain forest (
N21º54.705'
,
E101º16.898'
,
656 m
),
13 November 2009
, leg.
G. Tang
and
Z.Y. Yao
(Tang-Yao_No.4).
Paratypes
:
CHINA
:
Yunnan
:
Xishuangbanna
,
Mengla County
,
Menglun Town
,
Menglun Nature Reserve
,
leg.
G. Tang
and
Z.Y. Yao
:
1 ♀
, same data as holotype
;
2 ♀
,
Lvshilin Forest
Park,
Limestone
tropical seasonal rain forest (
N21º54.710'
,
E101º16.941'
,
652 m
),
16 November 2009
(
Tang-Yao
_
No.
10)
;
1 ♀
, G213 roadside,
Bamboo
plantations (
N21º54.380'
,
E101º16.815'
,
620 m
),
21 November 2009
(
Tang-Yao
_
No.
17)
;
1 ♀
, G213 roadside,
Bamboo
plantation (
N21º54.386'
,
E101º16.803'
,
627 m
),
22 November 2009
(
Tang-Yao
_
No.
18)
;
1 ♂
, G213 roadside,
Bamboo
plantation (
N21º54.380'
,
E101º16.815'
,
627 m
),
22 November 2009
(
Tang-Yao
_
No.
19)
;
1 ♀
,
Garbage
dump,
Secondary
tropical forest (
N21º54.380'
,
E101º16.815'
,
627 m
),
23 November 2009
(
Tang-Yao
_
No.
20)
;
2 ♂
,
8 ♀
, same data
as
Tang-Yao
_
No.
20 (
Tang-Yao
_
No.
21)
.
Etymology.
The specific name comes from the Latin word
mancum
(lacking or defective), referring to the palp without RTA, adjective.
Diagnosis.
This species can be easily distinguished from other members of this genus by: palp without RTA and epigynum with a large excurved sclerotized plate.
Description.
Male
(
holotype
measured): Total length 3.50. Prosoma 1.50 long, 1.50 wide; opisthosoma 2.00 long, 1.80 wide. Dorsal shield of prosoma light yellow with a pair of gray stripes, sides gray. Eye measurements: AME 0.05, ALE 0.10, PME 0.04, PLE 0.08, AME
−
AME 0.18, AME
−
ALE 0.18, PME
−
PME 0.20, PME
−
PLE 0.28. MOA 0.34 long, front width 0.26, back width 0.30. Chelicerae yellow, gnathocoxae, labium and sternum light yellow. Legs yellow with many spines. Leg measurements: I: 7.70 (2.20, 2.70, 1.80, 1.00); II: 7.90 (2.30, 2.80, 1.80, 1.00); III: 4.00 (1.30, 1.50, 0.70, 0.50); IV: 4.40 (1.50, 1.50, 0.80, 0.60), leg formula 2143. Opisthosoma dorsally grayish yellow with black stripes and white spots. Venter light gray.
Palp
(
Figs 55 B–D
,
57 A–B
). Palp only with VTA, VTA wide basally and beak-shaped distally; tutacular apophysis hook-shaped, curved distally; embolus filiform.
Female
(one of the
paratypes
measured): Total length 3.10. Prosoma 1.40 long, 1.40 wide; opisthosoma 1.80 long, 1.50 wide. Dorsal shield of prosoma light brown, with a pair of gray stripes, sides gray. Eye measurements: AME 0.07, ALE 0.12, PME 0.05, PLE 0.10, AME
−
AME 0.16, AME
−
ALE 0.17, PME
−
PME 0.20, PME
−
PLE 0.30. MOA 0.36 long, front width 0.28, back width 0.30. Chelicerae, gnathocoxae, labium and sternum yellow. Legs I, II light brown, legs III, IV yellow. Leg measurements: I: 6.50 (2.00, 2.40, 1.40, 0.70); II: 6.30 (2.00, 2.20, 1.40, 0.70); III: 3.40 (1.10, 1.20, 0.60, 0.50); IV: 3.80 (1.30, 1.30, 0.70, 0.50), leg formula 1243. Opisthosoma dorsally yellow with grayish markings and white spots. Venter yellow with black markings posteriorly.
FIGURE 55.
Spilosynema mancum
sp. nov.
, holotype from Xishuangbanna. A Habitus, dorsal; B–D Palp (B Prolateral, C Ventral, D Retrolateral). Scale bars: A = 1.0 mm; B–D = 0.1 mm.
FIGURE 56.
Spilosynema mancum
sp. nov.
,
paratype from Xishuangbanna. A Habitus, dorsal; B
Epigynum
, ventral; C Vulva, dorsal. Scale bars: A = 1.0 mm; B–C = 0.1 mm.
Epigynum
(
Figs 56 B–C
,
57 C–D
).
Epigynum
with a large, excurved sclerotized plate; copulatory openings visible; copulatory ducts long and twisted; spermathecae oval.
Variation.
Total length:
♂
2.90–3.50 (n=6);
♀
3.10–4.50 (n=20).
Distribution.
China
(
Yunnan
).