Revision of the Afrotropical crab-spider genus Parabomis Kulczyński, 1901 (Araneae: Thomisidae)
Author
Dippenaar-Schoeman, Anna S.
0000-0003-1532-1379
ARC-Plant Health and Protection, Private Bag X 134, Queenswood 0121, South Africa & Department of Zoology, Centre for Invasion Biology, University of Venda, Thohoyandou 0950, South Africa DippenaarA @ arc. agric. za; https: // orcid. org / 0000 - 0003 - 1532 - 1379
Author
Foord, Stefan H.
0000-0002-9195-2562
stefan. foord @ univen. ac. za; https: // orcid. org / 0000 - 0002 - 9195 - 2562
stefan.foord@univen.ac.za
text
Zootaxa
2020
2020-12-30
4899
1
161
174
journal article
8697
10.11646/zootaxa.4899.1.8
90855d8d-93eb-4a4f-a4cf-3c36fdf9c2a5
1175-5326
4400882
A0C2249D-1099-4F9E-80F2-04A3770E8744
Parabomis martini
Lessert, 1919
Figures 3
,
10–14
Parabomis martini
Lessert, 1919: 116
, pl. 2, figs 6–8, 15 (
Lectotype
³ and
1♀
paralectotype
, here designated:
TANZANIA
:
Kilimandjaro Region
: Kibonoto (Kibognoto),
03°12’S
,
37°07’E
, MNHN—examined;
2♀
paralectotypes
:
KENYA
:
Mt
Meru
, Ngare na Nyuki [now Nanyuki],
03°05’S
,
39°51’E
, MGNH—examined);
Millot 1942: 33
, fig. 15A–B.
Parabomis anabensis
Lawrence, 1928: 246
, pl. 22, fig. 29 (
Holotype
♀
:
NAMIBIA
:
Kaoko Otavi,
18°18’S
,
13°41’E
, found on tree
Grewia monticola,
SAM
7035—examined);
1♀
paratype
:
NAMIBIA
:
Anabib
,
18º10’S
,
12º31’E
,
SAM 6690
—examined).
syn nov
.
FIGURES 10–14.
Parabomis martini
Lessert, 1919
. 10 Male habitus, dorsal view; 11 Female habitus, dorsal view; 12 Left male palp, ventral view; 13 Epigyne, ventral view; 14 Epigyne, dorsal view. Scales: 1 mm.
Diagnosis.
Males resemble those of
P. wandae
sp. nov.
, with the RTA apex directed laterad in both species. They differ by the RTA in
P. wandae
sp. nov.
having a broad base and beak-like form (
Fig. 28
), compared to sharply pointed tip of
P. martini
. The males also differ in the profile of the abdomen, which is round in
P. martini
and humpshaped in
P. wandae
sp. nov.
In the females, the atrium is subtriangular (
Fig. 13
) in
P. martini
and egg-shaped in
P. wandae
sp. nov.
Remark.
Parabomis anabensis
Lawrence, 1928
from
Namibia
is known only from a female, which resembles
P. martini
closely in all aspects and is here regarded as its junior synonym.
Description.
Female.
Measurements: TL 3.6; CL 1.3; CW 1.5. Legs: I 1.91 (0.68, 0.29, 0.42, 0.25, 0.27); II 1.84 (0.61, 0.28, 0.43, 0.24, 0.28); III 1. 21 (0.42, 0.22, 0.26, 0.12, 0.19); IV 1.72 (0.55, 0.46, 0.28, 0.31, 0.12). Carapace fawn, with clypeus and eye region strongly infused with white; sometimes with green hue (
Fig. 3
); carapace lateral sides slightly darker; carapace wider than long; chelicerae, mouthparts yellowish white. Eyes as in genus description. Sternum yellowish. Legs fawn to brown, infused with white; femora darker, especially legs II and III; articulation area of joints with strong white rim. Abdomen fawn to white with faint spots; depressions on dorsum bearing two brownish triangular indentations (
Fig. 11
). Epigyne with atrium subtriangular (
Fig. 13
); spermathecae with two lobes, ventral lobe with folds (
Fig. 14
); intromittent orifices uncovered and situated in anterior part.
Male.
Measurements: TL 1.7; CL 0.9; CW 1.0. Legs: I 1.43 (0.51, 0.13, 0.30, 0.27, 0.22); II 1.43(0.63, 0.22, 0.28, 0.20, 0.10); III 1.09 (0.34, 0.12, 0.32, 0.21, 0.10); IV 1.32 (0.47, 0.15, 0.32, 0.19, 0.19). Male smaller than the female and darker in colour (
Fig. 10
). Carapace dark brown, with darker patches laterally; chelicerae, mouthparts, sternum dark to yellowish brown. Sternum dark to yellowish brown, granulose. Legs brown, with coxae and femora darker; articulation area of joints with strong white rim. Abdomen dorsum shield-like, white with brown hue, with two longitudinal series of black spots dorsally in depressions; venter creamish white. Palp with VTA small and triangular, RTA with broad base, apex sharply pointed, directed laterad (
Fig.12
).
Other material examined.
SOUTH AFRICA
:
Eastern Cape Province
:
Farm Gretna
,
6 km
SW of Grahamstown
,
31°30’S
,
26°38’E
,
leg.
P. Croeser
,
7.XI.1978
(on flower
Pterocelastrus tricuspidatus
), 1³ (
NCA 92
/604);
Alexandria
,
46 km
SSW of Grahamstown
,
33°43’S
,
26°22’E
,
leg.
P. Croeser
,
21.X.1978
(coastal dune forest, in undergrowth),
1♀
(
NCA 92
/606);
Grahamstown
,
33°18’S
,
26°31’E
,
leg.
P. Croeser
,
20.X.1979
, 1³ (
NCA 2009
/261);
Hankey
,
Baviaanskloof
,
33°39’S
,
24°27’E
,
leg.
L. Lotz
,
26.
II
.2008
(beating grass),
1♀
(
NMBA 11531
)
;
East
London,
Pineapple Research Station
,
33°01’S
,
27°55’E
,
leg.
A.S. Dippenaar-Schoeman
,
7.XII.1977
(sweeping undergrowth), 1³ (
NCA 97
/480);
Prentjiesberg
,
31°12’S
,
28°17’E
,
leg.
M. Hamer
,
10.XII.2005
(sweeping grass), 1³ (
NCA 2007
/750);
Thyspunt
,
12 km
WNW of
Cape
St Francis
,
34º17’S
,
24º43’E
,
leg.
Linda Wiese
,
11.
II
.2012
(sweeping),
1♀
(
NCA 2013
/1147);
Same
locality data,
1♀
(
NCA 2012
/5636)
.
Gauteng Province
:
Roodeplaatdam Nature Reserve
,
28º22’S
,
25º37’E
,
leg.
A.S. Dippenaar-Schoeman
,
27.XI.1979
(beating trees),
5♀
(
NCA 1980
/276, 1980/292);
Same
locality
,
leg.
E.A. Ueckermann
29.XI.1979
(beating
Euclea crispa
),
3♀
,
1 imm.
(
NCA 1980
/275, 1981/472);
Same
locality
,
leg.
E. A. Ueckermann
27.XI.1979
(beating trees),
1♀
(
NCA 1980
/274, 1981/431); Walter
Sisulu National Botanical Gardens
,
26º05’S
,
27º50’E
,
leg.
A. Leroy
,
22.IX.2008
(in flower head),
1♀
(
NCA 2009
/183)
.
KwaZulu-Natal Province
:
Tembe Elephant Park
,
27º02’S
,
32º25’E
, leg.
R
.
Harris
,
22.XI.1989
(sweeping grass),
1♀
(
NCA 1999
/32);
Umgeni Valley
,
29º28’S
,
30º16’E
, leg.
A. Leroy
,
7.I.1997
(deep forest),
1♀
(
NCA 1999
/33);
Dukuduku Forest
,
28º22’S
,
32º14’E
, leg.
M. Filmer
7.XI.1991
(forest),
1♀
(
NCA 1991
/662);
Sodwana Bay
,
27º31’S
,
32º41’E
,
leg.
C. Car
,
19.v.1981
(dune forest),
1imm.
(
SAM
/
Aran
880 C329);
Spioenkop Dam
,
30 km
SW Ladysmith
,
28º41’S
,
29º25’E
, leg. C. &
T
.
Griswold
,
9. XII.1985
(sweeping mixed grassland),
1♀
(
NMSA 23718
)
.
Limpopo Province
:
Nylsvley Nature Reserve
,
24°39’S
,
28°42’E
,
leg.
G. Ferriera
,
1.
II
.1976
(beating
Vitex rehmanni
tree),
1imm.
(
NCA 1978
/470);
Same
locality
,
leg.
G. Ferriera
,
1.I.1977
(beating
Dombeya
sp. tree),
1♀
(
NCA 1978
/515);
Mabula Private Game Reserve
,
24°44’S
,
27°55’E
,
leg.
M. Braack
,
17.XII.1989
(in flower head),
1♀
(
NCA 1991
/484);
Waterberg
, near
Vaalwater
, farm
Klipfontein
,
28°18’S
,
24°08’E
,
leg.
C. Car
,
4.XII.1979
, 1³ (
NMZ
/
A432
)
;
Same
locality, leg.
C.A. Car
,
6.XII.1979
(on grass), 1³ (
NMZ
/
A 364
)
;
Weltevreden Nature Reserve
,
24°39’S
,
27°58’E
,
leg.
H. Kilian
,
16.VIII.2006
,
1♀
(
NCA 2009
/184);
Tshulu
,
22°57’S
,
30°58’E
,
leg.
S. Foord
,
19.
II
.2008
(branch beating),
1♀
(
NCA 2009
/530);
Makalali Nature Reserve
,
29°09’S
,
30°42’E
,
leg.
C. Whitmore
,
1.XII.1999
, 1³ (
NCA 2009
/262)
.
Mpumalanga Province
: 2D
Ranch
near
Loskopdam
,
25°25’S
,
29°21’E
,
leg.
A. Leroy
,
27.
II
.1994
,
1♀
(
NCA 2009
/263)
.
North West Province
:
Kgaswane Mountain Reserve
,
25°46’S
,
27°20’E
,
leg.
S. Stiemie
,
5.
II
.1980
(sweeping grass),
1♀
(
NCA 1980
/250);
Same
locality
,
leg.
A.S. Dippenaar-Schoeman
,
20.XI.1981
(sweeping grass), 1³ (
NCA 1996
/302);
Same
locality
,
leg.
E. Ueckermann
,
11.XII.1979
(beating
Buddleia saligna
), 1³ (
NCA 1981
/478);
Same
locality
,
leg.
M.K.P. Meyer
,
7.XI.1979
(beating
Euclea crispa
), 1³ (
NCA 1981
/469);
Farm Steelpoort
, on
Krugersdorp
road,
25°45’S
,
27°51’E
,
leg.
A.S. Dippenaar-Schoeman
,
12.XI.1976
(beating trees),
1♀
(
NCA 1976
/1965);
Same
locality
,
leg.
A.S. Dippenaar-Schoeman
,
25.XI.1982
(beating trees),
1♀
,
1imm.
(
NCA 1992
/605);
Meyer
farm,
Magaliesberg
, near
Rustenburg
,
25°47’S
,
27°16’E
,
leg.
J. Leroy
,
7.XII.1997
(beating
Celtis africana
tree),
1♀
(
NCA 2009
/259);
Zeerust
,
25°33’S
,
26°06’E
,
leg.
N. Hahn
,
2.
IV
.2010
(branch beating),
1♀
(
NCA
)
.
GUINEA
:
Kindia
,
10°09’N
,
12°31’W
,
VII.1937
,
1♀
(
MNHN
)
;
Dalaba
,
10°41’N
,
12°15’W
,
VIII.1937
,
1♀
(
MNHN
)
.
MALAWI
:
Chintheche
,
11°50’S
,
34°13’E
, leg.
R
.
Jocqué
,
3.
II
.1976
,
1♀
(
MRAC 148.050
)
.
NAMIBIA
:
Grootfontein
,
19º35’S
,
18º07’E
, leg.
R
.
W. Tucker
, no date,
1♀
(
SAM 5065
)
.
RWANDA
:
Ihema
,
01°52’S
,
30°46’E
, leg.
R
.
Jocqué
,
Nsengimara
and
Michiels
,
8.XII.1985
,
1♀
(
MRAC 165.827
)
;
Same
locality, 14.XI-XII.1985,
1♀
(
MRAC 165.292
)
.
TANZANIA
:
Zanzibar
(no exact locality), leg.
C. Cooke
, 1863,
1♀
(
MCZ
)
;
Mkomazi Game Reserve
,
Camp Ibayi
,
04°37’S
,
38°04’E
, leg.
A. Russell-Smith
,
1.XI.1996
, 1³ (
NCA 1997
/860)
.
ZAMBIA
:
Choma
,
Wildlife Game Farm
,
Hunters Camp
,
16°58’S
,
26°36’E
, leg.
C. Haddad
,
4.XII.2006
(beating short shrubs), 1³ (
NCA 2007
/518)
.
ZIMBABWE
:
Sibizini Dam
,
Doddieburn Ranch
, 2129A4, leg.
J. Minshull
,
11.XII.1985
,
1♀
(
NMZ
A4227
)
.
Distribution.
Tanzania
,
Kenya
,
Namibia
. New records:
Guinea
,
Malawi
,
Rwanda
,
South Africa
,
Zambia
and
Zimbabwe
(
Fig. 31
).
Biology/Habitat.
Parabomis martini
has been collected from a variety of habitats in the Grassland and Savanna Biomes, ranging from grass, trees in thorny bushveld, and the undergrowth of coastal dune forest. Tree species that they have been collected from include
Buddleia saligna
,
Euclea crispa
,
Dombeya
sp.,
Vitex rehmanni
and
Pterocelastrus tricuspidatus
(
Dippenaar-Schoeman
et al.
, 2009
)
. In
Namibia
,
P. anabensis
was collected from the tree
Grewia monticola
, and according to
Lawrence (1928)
the spider closely resembles its flowers.