Hortipes, A Huge Genus Of Tiny Afrotropical Spiders (Araneae, Liocranidae)
Author
BOSSELAERS, JAN
Author
JOCQUÉ, RUDY
text
Bulletin of the American Museum of Natural History
2000
2000-10-19
2000
256
4
4
http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0090(2000)256%3C0004%3AHAHGOT%3E2.0.CO%3B2
journal article
10.1206/0003-0090(2000)256<0004:HAHGOT>2.0.CO;2
0003-0090
5351417
Hortipes oronesiotes
,
new species
Figures 17i–l
,
18f
;
Map 1
TYPES:
Male
holotype
:
Mt.
Mulanje
,
Thuchila
hut,
Nambiti
stream, elev.
2000 m
,
Malawi
S16°00'
,
E35°30'
(
11 November 1981
;
R. Jocque´
) (
MRAC 156.329
).
Paratypes
:
2♀
together with
holotype
;
16,
2♀
under
Philippia
and
Setaria
,
1 km
E from the hut on the crossing of the
Madzeka
path with a small stream,
Thuchila
,
Mt.
Mulanje
,
Malawi
S16°00'
,
E35°30'
(
11 November 1981
;
R. Jocque´
) (
MRAC
;
1♀
in
AMNH
)
;
2♀
from sweeping in
Widdringtonia
evergreen forest, elev.
2000 m
,
Lichenya Plateau
,
Malawi
S16°00'
,
E35°30'
(
7 November 1981
;
R. Jocque´
) (
MRAC
)
;
1♀
sifted from litter in bamboo forest,
Lichenya Plateau
, elev.
1750 m
,
Malawi
S16°00'
,
E35°30'
(
6 November 1981
;
R. Jocque´
) (
MRAC
)
.
ETYMOLOGY: The species’ epithet is derived from the classical Greek opos, mountain and νηơιωτηs, islander, referring to the
type
locality Mt.
Mulanje
, a typical Malawian inselberg (Porembski, 1996).
DIAGNOSIS: Males of
H. oronesiotes
are recognized by the RTA with three sharp, subequal prongs all pointing up in combination with the MA of which the base is obliquely pointing forward. Females can be recognized by the small, elongate ST1, the subglobular stalked ST2 lying close together, and the outward Uloop of the ID.
MALE:
Measurements.
Total length 1.62; carapace 0.78 long, 0.59 wide; length of fe: I 0.62, II 0.68, III 0.51, IV 0.76.
Leg spination.
Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 5; mt: III plt 0 vt 0 rlt 0; IV plt 0 vt 1 rlt 0.
Coloration.
Carapace orange yellow, lighter at the fovea. Chelicerae and legs yellow, sternum pale yellow. Abdomen pale yellow, no pattern.
Palp.
RTA a ventrolateral swelling, its retrolateral side provided with three sharp, subequal, slightly diverging prongs pointing up; cymbium fairly elongate, without retrolateral concavity or series of long curved setae; sperm duct fairly narrow over entire course, slightly more narrowed toward embolus, with sharp turn before entering triangular swelling at base of embolus; MA originating in center of tegulum, with fairly long ally tapered part pointing down; embolus originating on flat triangular extension on posterior part of tegulum, whiplike, looped over slightly less than 360° (fig. 17i, j, l).
FEMALE:
Measurements.
Total length 2.19; carapace 0.97 long, 0.76 wide; length of fe: I 0.81, II 0.84, III 0.65, IV 0.95.
Leg spination.
Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 6; mt: III plt 1 vt 0 rlt 0; IV plt 1 vt 1 rlt 1.
Coloration.
Carapace orange brown, with darker radial striae. Chelicerae yellow brown, sternum yellow. Legs I and II orange brown, legs III and IV yellow brown. Abdomen brownish yellow, no pattern.
Genitalia.
Vulva: first stretches of IDs fused into one weakly sclerotized entrance chamber with entrance toward posterior side, second part of ID with sclerotized wall, first making outward Uloop and then running in posterior direction and entering the elongate ST1. A subglobular, stalked ST2 attached to ID at transition between thinwalled and sclerotized part (figs. 17k, 18f).
OTHER MATERIAL EXAMINED:
Malawi
:
1♀
:
Church of Central Africa Presbyterian
(
CCAP
) hut, elev.
2000 m
,
Lichenya Plateau
, Mt.
Mulanje
S16°00'
,
E35°30'
(
25 November 1981
;
R. Jocque´
) (
MRAC
)
;
1♀
from evergreen forest near forestry hut, elev.
1800 m
,
Lichenya Plateau
, Mt.
Mulanje
S16°00'
,
E35°30'
(
14 November 1981
;
R. Jocque´
) (
MRAC
)
.
VARIABILITY: The transparency of the vulva is variable.
DISTRIBUTION: Mt.
Mulanje
,
Malawi
, between elev.
1750 m
and
2000 m
.