Revision of the grass huntsman spider genus Pseudomicrommata Järvi, 1914 (Araneae: Sparassidae) in the Afrotropical Region
Author
Moradmand, Majid
text
African Invertebrates
2015
2015-08-12
56
2
425
425
http://www.bioone.org/doi/10.5733/afin.056.0213
journal article
10.5733/afin.056.0213
2305-2562
7914200
Pseudomicrommata longipes
(
Bösenberg & Lenz, 1895
)
Figs 1
,
3–14
Micrommata longipes
BÖsenberg & Lenz, 1895: 34
, pl. 1, fig. 11 (
♂
holotype
: East Africa [exact locality not clear],
31.i.1896
, leg. S.F. Stuhlmann, ZMH – examined);
Lessert 1936: 271
, figs 68–69.
Pseudomicrommata vittigera
(
Simon, 1897
)
:
JÄrvi 1914: 49
, 162, pl. 3, figs 4–6, 40 (material from
Kenya
,
misidentified); Lawrence 1942: 168 (in part, misidentification).
Pseudomicrommata longipes
(
Bösenberg & Lenz, 1895
)
:
Levy 1989: 163
; JÄger & Kunz 2005: 168, figs
255–258, 262–267.
Diagnosis: Males with diagnostic EA, which in ventral view is narrow proximally, widened medially and bifurcated distally (
Figs 3, 5
,
14
). Females can be recognised (especially in comparison with closely similar
P. vittigera
) by the vulva equipped with several glandular pores (GPO) (
Figs 9, 10
,
12
) and sTL extending beyond fTL laterally in dorsal view (
Figs 9
,
12
).
Redescription:
Male
(ranges: n=11, single measurements:
holotype
).
Measurements
: Medium sized; total length 10.9–12.9, total length of
holotype
: 11.3, prosoma length 5.1–5.5, prosoma width 4.2–4.7, anterior width of prosoma 2.3–2.6, opisthosoma length 5.8–7.4, opisthosoma width 2.3–3.0. Eye diameters: AME 0.22, ALE 0.31, PME 0.24, PLE 0.30; eye interdistances:AME–AME 0.15, AME–ALE 0.09, PME–PME 0.40, PME–PLE 0.30, AME–PME 0.75, ALE–PLE 0.42, clypeus height at AME 0.17, clypeus height at ALE 0.28.
Chelicerae
: With 2 anterior and 3 posterior teeth (first two larger than the third one) (
Fig. 7
).
Legs
: Leg formula: IV II I III. Palp 6.6 [2.6, 1.1, 0.5, 2.4], I 21.7 [6.1, 2.6, 5.2, 5.7, 2.1], II 23.8 [7.0, 2.8, 6.1, 5.9, 2.0], III 21.5 [6.2, 3.2, 5.0, 5.1, 2.0], IV 23.3 [7.1, 2.4, 5.8, 5.9, 2.1].
Spination
: Palp 131, 001/101, 1211; Legs: Femur I–III 323, IV 321/322; Patella I–IV 000/101; Tibia
I–IV 2126
/2226; Metatarsus
I–III 2024
, IV 3036.
Palp
: As in diagnosis, with dRTA pointed and vRTA rounded at distal end in ventral view (
Fig. 3
), both with the same length (
Figs 3, 4
); cymbium more than 2 times longer than tibia (
Fig. 4
).
Female
(ranges: n=20, single measurements: MRAC 211305 from
Tanzania
).
Measurements
: Medium sized; total length 15.3–18.3, prosoma length 5.8–6.5, prosoma width 4.7–5.1, anterior width of prosoma 2.8–3.1, opisthosoma length 9.5–11.8, opisthosoma width 4.1–6.0. Eye diameters:AME 0.34, ALE 0.48, PME 0.44, PLE 0.46; eye interdistances: AME–AME 0.21, AME–ALE 0.08, PME–PME 0.56, PME–PLE 0.37, AME–PME 0.85, ALE–PLE 0.52, clypeus AME 0.27, clypeus ALE 0.38.
Chelicerae
: As in males.
Figs 3–7.
Pseudomicrommata longipes
(
Bösenberg & Lenz, 1895
)
, male, Tanzania (MRAC):(3–5) left palp: (3) ventral view, (4) retrolateral view and (5) tip of embolus, embolic apophysis and conductor, ventral view; (6) eye arrangement; (7) left chelicera, ventral view. Abbreviations: C – conductor; dRTA – dorsal retrolateral tibial apophysis; E – embolus; EA – embolic apophysis; EM – embolus membrane; ET – embolus tip; H – haematodocha; T – tegulum; vRTA – ventral retrolateral tibial apophysis.
Figs 8–10.
Pseudomicrommata longipes
(
Bösenberg & Lenz, 1895
)
, female, Tanzania (MRAC):(8) epigyne, ventral view; (9) vulva, dorsal view; (10) left vulva, anterio-dorso-lateral view.Abbreviations:AMP – anterior margin of epigynal pocket; CD – copulatory duct; CO – copulatory opening; EF – epigynal field; EP – epigynal pocket; FD – fertilization duct; fTL – first turning loop; GPO – glandular pores; LL – lateral lobes; MS – median septum; PMP – posterior margin of epigynal pocket; SS – slit sensillum; sTL – second turning loop.
Figs 11–14.
Pseudomicrommata longipes
(
Bösenberg & Lenz, 1895
)
, (11–13) female, Barberspan, South Africa (NCA) and (14) male, Brandfort, South Africa (SMF): (11) epigyne, ventral view; (12) vulva, dorsal view; (13) schematic course of internal duct system; (14) tip of embolus, embolic apophysis and conductor, ventral view.Abbreviation:AB – anterior bands of epigynal field; for others see Figs 8–10.
Legs
: Leg formula: IV II I III. Measurements of palp and legs. Palp 6.9 [2.0, 1.1, 1.3, 2.5], I 19.8 [6.5, 3.0, 4.9, 5.0, 2.0], II 21.4 [6.5, 3.0, 4.9, 5.0, 2.0], III 19.0 [6.0, 2.7, 4.3, 4.4, 1.6], IV 21.8 [6.7, 2.6, 5.2, 5.6, 1.8].
Spination
: Palp 131, 001/101, 1013; Legs: Femur I–III 323, IV 321/322; Patella I–IV 000/101; Tibia
I–IV 1016
/2026; Metatarsus I–III 0004/1014/2024, IV 3036.
Epigyne/vulva
: As in diagnosis (
Figs 8–13
), with AMP slightly longer than PMP (for more details the genus redescription).
Other material examined:
BOTSWANA
:
Palapaye
,
23.xii.1980
, leg.
P. Reavell
, on herbs,
1♂
(
NCA 81
/82)
.
KENYA
:
Eastern Prov.
:
Kibwezi
,
23–24.xii.1905
, leg.
K.P. Scheffler
, grassland steppes,
2♂
5♀
5 imm.
(
ZMB 31331
)
.
NAMIBIA
:
Kunene
:
Annabis Farm
,
20°00'S
,
14°38'E
,
23–24.ii.1969
, leg.
B. Lamoral
&
R. Day
, with egg sac attached to grass,
1♀
(
NMSA 11526
)
.
SOUTH AFRICA
:
Free State Prov.
:
Brandfort district
,
Amanzi Private Game Reserve
,
28°36.042'S
26°25.791'E
,
17.xii.2010
, leg.
C. Haddad
&
V. Butler
, canopy fogging,
Olea europea africana
, canopy height
8 m
, 10:00 am,
1♀
(SD742, SMF); same locality,
28°35.435'S
,
26°26.157'E
,
1425 m
,
25.x.2011
, leg.
C. Haddad
,
1♂
(SD1117, SMF)
.
Gauteng Prov.
:
Roodeplaat Dam
,
20.xi.1991
, leg.
A. Leroy
, in grass,
1♀
(
NCA 92
/164)
.
KwaZulu-Natal Prov.
:
Maritzburg
(=
Pietermaritzburg
),
ii.1945
,
4♀
(
NMSA 4309
)
;
Ndumo Game Reserve
,
26°54.425'S
32°19.191'E
,
11.ii.2005
, post AFRAS 2005 excursion, leg.
D. Kunz
,
1♀
(DK323, SMF); same data as previous but
26°53.025'S
32°10.050'E
,
8.ii.2005
,
1♀
(DK298, SMF); same data as previous but
26°54.425'S
32°19.191'E
,
5.ii.2005
,
1♂
(DK269, SMF);
Ndumo Game Reserve
,
28.xi.1973
,
1♂
(
NMSA 20171
)
;
Pietermaritzburg
,
Ashburton
,
27.i.1982
, under brick in
Acacia karroo
veld,
1♂
(
NMSA 20170
)
;
Nyala Game Reserve
,
12.xii.1980
, in dense grass at side of path,
1♀
(
NMSA 20171
)
;
Zululand
,
Mfongosi
,
ii.1918
, leg.
W.E. Gonzo
,
1♀
(misidentified as
Micrommata vittigera
, Lawrence
det.) (
SAMC
B4023
)
.
Limpopo Prov.
:
Tuinplaas
,
Springbokvlakte
,
Settlers
(
Tweekaansen
),
19.xii.2002
, leg.
M. van Jaarsveld
,
1♂
(
NCA 2003
/1322);
Nylsvley Nature Reserve
,
6.iii.1998
, leg.
J. Leeming
, on grass,
sweep net
,
1♀
(
NCA 98
/570); Farm Rochdale,
between Waterpoort and
Louis Trichardt
IV, slopes of Soutpansberg,
4.xii.1998
, leg.
W. Croucamp
,
1♀
(
NCA 2001
/308)
.
North West Prov.
:
Barberspan
,
xii.1990
, leg.
K. Morgan
, in passage of house,
1♂
(
NCA 91
/812); same data as previous but
2.ii.1991
,
1♀
(
NCA 91
/813)
.
TANZANIA
:
Mkomazi Game Reserve
,
Igire Ridge
,
15.iii.1995
, leg.
A. Russell-Smith
, grassland,
2♂
1♀
(
MRAC 211305
)
.
Known geographical distribution:
Kenya
,
Tanzania
,
Botswana
,
South Africa
and
Namibia
(
Fig. 40
).
Remarks: For a long time
P. longipes
was thought to be the only species of
Pseudomicrommata
widespread in tropical Africa. Recent molecular investigation (
Moradmand
et al
. 2014
) revealed a clue, that in spite of similarity in morphology between species in
South Africa
and
Guinea
(in particular females), considerable genetic distance can be observed (see
Moradmand
et al
. 2014
: fig. 3).