Capobula gen. nov., a new Afrotropical dark sac spider genus related to Orthobula Simon, 1897 (Araneae: Trachelidae)
Author
Haddad, Charles R.
0000-0002-2317-7760
Department of Zoology & Entomology, University of the Free State, P. O. Box 339, Bloemfontein 9300, South Africa. & haddadcr @ ufs. ac. za; https: // orcid. org / 0000 - 0002 - 2317 - 7760; & booysenr @ ufs. ac. za; https: // orcid. org / 0000 - 0002 - 0841 - 9143
haddadcr@ufs.ac.za
Author
Jin, Chi
0000-0002-4694-4870
College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Hebei 056038, P. R. China. & jinchi _ spider @ 163. com; https: // orcid. org / 0000 - 0002 - 4694 - 4870
Author
Platnick, Norman I.
0000-0003-4868-7529
Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79 th Street, New York, NY 10024, U. S. A. & https: // orcid. org / 0000 - 0003 - 4868 - 7529; deceased
Author
Booysen, Ruan
0000-0002-2317-7760
Department of Zoology & Entomology, University of the Free State, P. O. Box 339, Bloemfontein 9300, South Africa. & haddadcr @ ufs. ac. za; https: // orcid. org / 0000 - 0002 - 2317 - 7760; & booysenr @ ufs. ac. za; https: // orcid. org / 0000 - 0002 - 0841 - 9143
haddadcr@ufs.ac.za
text
Zootaxa
2021
2021-03-11
4942
1
41
71
journal article
7679
10.11646/zootaxa.4942.1.2
25d73144-c90c-45c3-a9a2-2454f87a9aef
1175-5326
4596097
79353662-7653-4F41-8B39-40E6E4B2E005
Capobula neethlingi
spec. nov.
Figs 9
,
71, 72
Type material.
Holotype
♀
:
SOUTH AFRICA
:
Western Cape
:
George
,
Saasveld Pass
,
33°58.198’S
,
22°31.778’E
,
149 m
a.s.l.
,
7.XII.2012
, leg.
J. Neethling
(leaf litter, indigenous forest) (
NCA 2019
/1002a)
.
Paratypes
: together with
holotype
,
1♀
(
NCA 2019
/1002b).
SOUTH AFRICA
:
Western Cape
:
Laingsburg
,
Anysberg Nature Reserve
,
33°27.300’S
,
20°34.862’E
,
735 m
a.s.l.
,
8.IX–8.X.2015
, leg.
Z. Mbo
(
pitfall traps
, karoo veld) (
NCA 2016
/2464);
Swartberg Nature Reserve
,
Gamkaskloof
,
33°21’S
,
21°41’E
,
15.I.2001
, leg.
Z. van der Walt
(on ground),
2♀
(
NCA 2002
/198)
.
Diagnosis.
Females of
C. neethlingi
spec. nov.
have a similar epigyne to that of
C. montana
spec. nov.
, but can be distinguished by the V- rather than J-shaped ridges containing the copulatory openings, the slightly separated copulatory ducts (touching medially in
C. neethlingi
spec. nov.
), and the bursae that are separated by approximately half their diameter, while almost touching in
C. neethlingi
spec. nov.
(compare
Figs 71 and 72
with
Figs 65 and 66
). Male unknown.
Etymology.
Named for arachnologist Jan Andries Neethling, who collected the
holotype
; name in genitive case.
Female (
holotype
, NCA 2019/1002).
Measurements: CL 0.84, CW 0.64, AL 1.02, AW 0.87, TL 1.95 (1.80– 1.98), PERW 0.30, MOQAW 0.12, MOQPW 0.15, MOQL 0.16. Length of leg segments: I 0.60 + 0.24 + 0.52 + 0.45 + 0.25 = 2.06; II 0.54 + 0.23 + 0.41 + 0.38 + 0.24 = 1.80; III 0.46 + 0.21 + 0.33 + 0.38 + 0.23 = 1.61; IV 0.59 + 0.24 + 0.49 + 0.56 + 0.27 = 2.15.
Colour: carapace deep orange-brown, with black mottling at centre, pits and lateral margins with black edges; chelicerae deep yellow-brown, with faint black mottling; endites and labium yellow-brown, cream at distal ends; sternum bright orange, pits slightly darker, lateral margins orange-brown; palps pale yellow-brown; legs with femora and tibiae I and II pale orange-brown, yellow-brown distally; patellae, metatarsi and tarsi I and II, and legs III and IV yellow-brown; abdomen dark grey dorsally and laterally, dorsally with eight fine cream chevrons in posterior half to spinnerets; venter slightly paler mottled grey; spinnerets cream.
Leg spination: femora and patellae: spineless; tibiae: I plv 6 rlv 6, II plv 6 rlv 5; metatarsi: I plv 4 rlv 4, II plv 4 rlv 4; tarsi: I plv 3 rlv 3, II plv 3 rlv 2.
Epigyne with small copulatory openings in J-shaped epigynal ridges (
Fig. 71
); copulatory ducts initially curving medially, then posteriorly, looping dorsally and anterolaterally before entering teardrop-shaped primary spermathecae along their interior margin; bursae subtriangular, apices converging mesally, similar in size to primary spermathecae (
Fig. 72
).
Habitat and biology.
This species was recorded in two very contrasting biotopes,
viz
. moist Afromontane Forest and xeric Nama Karoo.
Distribution.
Only known from three localities in the
Western Cape Province
,
South Africa
(
Fig. 75
).