Taxonomic revision of the huntsman spider genus Eusparassus Simon, 1903 (Araneae: Sparassidae) in Eurasia
Author
Moradmand, Majid
Author
Jäger, Peter
text
Journal of Natural History
2012
2012-10-31
46
39 - 40
2439
2496
http://dx.doi.org/10.1080/00222933.2012.707249
journal article
55831
10.1080/00222933.2012.707249
6e4a60c9-c2d5-4ed2-b640-6253aa251f7f
1464-5262
5202071
Eusparassus xerxes
(
Pocock, 1901
)
comb. nov.
(
Figures 19
,
20
,
23B
)
Sparassus xerxes
Pocock, 1901: 489–490
(description of male and female;
syntypes
, examined).
Olios xerxes
–
Gravely 1931: 240–241
, figs 5A, 6A (transfer);
Sethi and Tikader 1988: 35
, figs 157–162.
Type material
Syntypes
:
3 ♂♂
,
1 ♀
,
10 immatures
,
IRAN
:
Bushehr Province
:
1 male
,
1 female
,
1 juvenile
, Bushehr (sub
Bushier
),
F.W. Townsend
leg. (
NHM 1882.109
)
;
4 subadult
males
,
3 juveniles
,
Port Reshire
near
Bushier
,
F.W. Townsend
leg. (
NHM
0.5.9.36.41)
;
1 subadult
male
,
1 subadult
female
,
1 juvenile
,
Bushier
,
F.W. Townsend
leg. (
NHM
7.88.33)
;
1 male
,
PAKISTAN
:
Baluchistan Province
:
Ormara
,
Makran Coast
,
F.W. Townsend
leg. (
NHM
1899.10.6.7)
;
1 male
,
Ormara
,
Makran Coast
,
F.W. Townsend
leg. (
NHM
0.5.6.20)
.
Additional material examined
1 ♂
,
5 ♀♀
,
PAKISTAN
:
1 ♂
,
4 ♀♀
,
Azad Kashmir
:
Panjur
(
Mozaffarabad
:
Kupwara
,
34
◦
28
′
10" N
,
73
◦
39
′
0" E
),
E. Zugmayer
leg. (
ZSM
A20110058
)
;
1♀
,
Azad Kashmir
:
Kedsch, E
.
Zugmayer
leg. (
ZSM
A20110051
)
.
Diagnosis
Large
Eusparassus
species
(largest female: body length
30 mm
, leg span
14 cm
), with diagnostic vase-like black marking on venter of opisthosoma in both sexes (
Figure 23B
), which is absent in most Eurasian species (except
E. dufouri
and
E. levantinus
which is V-shaped). Palp similar to that of
E. fuscimanus
but differ in relative cymbium
/
tibia length: cymbium more than twice length of tibia in
E. fuscimanus
, compared with
E. xerxes
, where it is less than twice. ET more extended distally in
E. fuscimanus
than
E. xerxes
(
Figure 19A–C
).
Redescription
Male
(
n
= 4). Total length: 21.3–24.8, prosoma length 10.8–12.3, prosoma width 9.5–10.0, anterior width of prosoma 5.4–5.8, opisthosoma length 10.5–12.5, opisthosoma width 7.0–7.7. Eye diameters: AME 0.61, ALE 0.60, PME 0.57, PLE 0.60; eye interdistances: AME–AME 0.32, AME–ALE 0.15, PME–PME 0.61, PME–PLE 0.57, AME–PME 0.64, ALE–PLE 0.40, clypeus height at AME 0.41, clypeus height at ALE 0.51.
Chelicerae with two anterior and three or four posterior teeth. Cheliceral furrow without denticles. Four thick inclined bristles at distal end of basal segment (
Figure 19E
). Leg formula: 2 4 1 3. Measurements of palp and legs: Palp 15.2 [5.3, 2.2, 2.6, 5.1], I 56.7 [16.2, 5.3, 15.7, 15.8, 3.7], II 63.1 [17.5, 6.0, 17.3, 18.5, 3.8], III 53.5 [15.7, 5.5, 14.5, 14.4, 3.3], IV 60.3 [17.0, 5.3, 16.3, 18.0, 3.7].
Spination.
Palp 131, 000
/
001, 1111; Legs: Femur I–III 323, IV 322; Patella I–IV 000
/
101; Tibia
I–IV 2024
/
23(2)24; Metatarsus
I–III 2024
, IV 3034
/
3036.
Palp.
As in diagnosis with dRTA strongly bent and vRTA is not well developed, palp generally elongated, cymbium longer than tibia (
Figure 19A,B
); ET pointing proximo-ventrad (
Figure 19C,F
).
Female
(
n
= 6). Total length: 21.5–29.8, prosoma length 10.5–13.0, prosoma width 8.4–10.7, anterior width of prosoma 6.0–7.3, opisthosoma length 11.0–16.8, opisthosoma width 8.2–10.5. Eye diameters: AME 0.63, ALE 0.62, PME 0.60, PLE 0.64; eye interdistances: AME–AME 0.43, AME–ALE 0.17, PME–PME 0.70, PME–PLE 0.78, AME–PME 0.70, ALE–PLE 0.50, clypeus height at AME 0.55, clypeus height at ALE 0.60.
Chelicerae with two anterior and three or four posterior teeth. Cheliceral furrow without denticles. Leg formula: 2 4 1 3. Measurements of palp and legs: Palp 15.5 [4.8, 2.3, 3.2, 5.2], I 51.9 [14.7, 6.1, 13.3, 14.5, 3.3], II 55.3 [16.1, 6.2, 15.0, 14.7, 3.3], III 47.1 [14.5, 5.5, 12.5, 11.8, 2.8], IV 52.4 [15.7, 5.5, 13.7, 14.3, 3.2].
Spination.
Palp 131, 001, 1111, 1013; legs: Femur I–III 323, IV 322; Patella I–IV 000 (001); Tibia
I–IV 2024
–21(2)24; Metatarsus
I–III 2024
, IV 3034 (3036).
Figure 19.
Eusparassus xerxes
(
Pocock, 1901
)
comb. nov.
, (A–C) syntype male from Ormara, Makran coast, Pakistan: (A) left palp, ventral; (B) left palp, retrolateral; (C) tip of embolus and conductor, ventral; (D–F) syntype male from Bushehr, Persian Gulf coast, Iran: (D) eye arrangement; (E) left chelicera, ventral; (F) tip of embolus and conductor from left palp, ventral. Scale bars: (A, B, D, E) 1 mm, (C, F) 0.5 mm.
Figure 20.
Eusparassus xerxes
(
Pocock, 1901
)
comb. nov.
, (A, B) syntype female from Bushehr, Persian Gulf coast, Iran: (A) epigyne, ventral; (B) left vulva, anterio-dorso-lateral; (C, D) female from Kedsh, Azad Keshmir, Pakistan: (C) epigyne, ventral; (D) left vulva, anterio-dorso-lateral. Scale bars: (A, C) 1 mm, (B, D) 0.5 mm.
Epigyne
/
vulva.
EF longer than wide, AMLL well developed but not fused together, EFB present but not combined to AMLL; EF longer than wide (
Figure 20A,C
); vulva generally short and compact, glandular pores situated on a widened semicircular process (
Figures 20B,D
).
Colouration
[in ethanol]. Prosoma and legs reddish brown with creamy opisthosoma, ventral opisthosoma as diagnosis.
Remarks
Gravely (1931)
, using an unreliable character at generic level (number of distal bristles at basal segment of chelicerae), transferred
E. xerxes
comb. nov.
(sub
Sparassus
and along with unjustified former junior synonyms:
E. pearsoni
comb. nov.
and
E. maynardi
comb. nov.
) to
Olios
.
Eusparassus pearsoni
comb. nov.
and
E. xerxes
comb. nov.
have three and four bristles, respectively, whereas one bristle appears in most
Eusparassus
spp.
This is the largest
Eusparassus
species
in Eurasia (leg span
14 cm
). After its original description from Makran coast in
Iran
and
Pakistan
(
Pocock 1901
), we describe conspecifics from Central
Pakistan
in Kashmir. The species exhibit dorsal tibial spines normally absent in other
Eusparassus
species.
Ventral marking of opisthosoma resembles some
Eusparassus
species
in African Sahara and Arabia.
Known geographical distribution
From southern
Iran
(
Bushehr
port in the Persian Gulf) to Makran Coast and Central
Pakistan
(
Baluchistan
and Azad Kashmir provinces).