Revision and cladistic analysis of the Afrotropical endemic genus Smeringopus Simon, 1890 (Araneae: Pholcidae)
Author
HUBER, BERNHARD A.
text
Zootaxa
2012
2012-09-07
3461
1
1
138
http://dx.doi.org/10.11646/zootaxa.3461.1.1
journal article
53629
10.11646/zootaxa.3461.1.1
664d9cee-5b75-4788-a394-6b35a37de652
11755334
6415657
0704C43A-73D8-4A28-915A-7FF8611C8606
Smeringopus tombua
new species
Figs. 436–437
,
457–458
,
473–474
,
526–529
Type.
Male
holotype
from
Angola
,
Namib Province
, “
Désert de Moçamedes
”, between km 30 and 34 of route [from Moçamedes = Namib] to
Porto Alexandre
[= Tômbua] [~
15°26’S
,
12°11’E
], under
Welwitschia
leaves,
23.x.1949
(
A. de Barros Machado
), in
SMF
(
Ang 1947.6
)
.
Etymology. The name is a noun in apposition, derived from the
type
locality.
Diagnosis. Distinguished from similar congeners by shapes of procursus (distal structures,
Fig. 526
; similar
S. atomarius
and
S. uisib
), bulb (processes of embolus,
Fig. 529
; similar
S. atomarius
and
S. uisib
), cheliceral apophyses (with proximal humps;
Figs. 527, 528
), shape of epigynum (
Fig. 473
; wide plate with small round pockets; like
S. atomarius
and
S. uisib
), and spotted leg femora (only proximally).
Male (
holotype
). Total body length 6.2, carapace width 1.7. Leg 1: 43.6 (12.5 + 0.8 + 10.8 + 17.5 + 2.0), tibia 2: 8.0, tibia 3: 6.0, tibia 4: 8.8; tibia 1 L/d: 55. Habitus as in
Figs. 436 and 437
. Carapace ochre-yellow with brown median and very indistinct lateral marks, clypeus with indistinct pair of dark stripes, sternum slightly darkened medially, leg femora with some brown spots proximally, femora and tibiae with indistinct subdistal rings, abdomen monochromous pale whitish. Distance PME-PME 115 µm, diameter PME 150 µm, distance PME-ALE 55 µm, distance AME-AME 60 µm, diameter AME 135 µm. Ocular area slightly elevated, secondary eyes with small ‘pseudo-lenses’; deep thoracic pit. Chelicerae with conical proximal humps and distal apophyses (
Figs. 527, 528
). Palps as in
Figs. 457 and 458
, coxa with distinct retrolateral apophysis, trochanter barely modified, femur with retrolateral furrow with distinct proximal rim, procursus with distinctive distal processes in dorsal view (
Fig. 526
; retrolateral view as in
S. uisib
; cf.
Fig. 509
), bulb with complex embolus, distinctive in prolateral view (
Fig. 529
; dorsal view as in
S. uisib
; cf.
Fig. 512
). Legs without spines, few vertical hairs, with curved hairs on tibiae and metatarsi 1 and 2; retrolateral trichobothrium on tibia 1 at 2.5%; prolateral trichobothrium present on tibia 1. Gonopore with two epiandrous spigots.
Variation. Tibia
1 in
4 other males: 8.9, 9.3, 10.0, 10.8.
FIGURES 526–529.
Smeringopus tombua
. 526. Left procursus, dorsal view. 527–528. Male chelicerae, frontal and lateral views. 529. Left embolus, prolateral view. Scale lines: 0.3 mm.
Female. In general similar to male; tibia
1 in
2 females
: 9.3, 9.6.
Epigynum
a wide plate with round pockets (
Fig. 473
; very similar
S. atomarius
and
S. uisib
); internal genitalia as in
Fig. 474
.
Distribution. Only known from
type
locality in southwestern
Angola
(
Fig. 475
).
Material
examined.
Angola
:
Namib Province
:
between Namib and Tômbua
:
type
above; same data,
4♂
3♀
(3 vials) in
SMF
.