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 orchatocnemis
,
new species
Figures 14f–k
,
16c
;
Map 1
TYPES:
Male
holotype
: in forest litter,
Mwenembwe Forest
, elev.
2300 m
,
Nyika Plateau
,
Malawi
S10°40'
,
E33°50'
(
17 December 1981
;
R. Jocque´
) (
MRAC 155.928
).
Paratypes
: 16,
1♀
together with
holotype
;
1♀
in forest litter, mainly
Hagenia
, same lo
2000 BOSSELAERS AND JOCQUÉ:
HORTIPES
51
stream bank, elev.
2150 m
,:
Nyika Plateau
,
Chowo Forest
,
Malawi
S10°40'
,
E33°50'
(
4– 18 December 1981
;
R. Jocque´
) (
MRAC
)
;
16,
1♀
from litter in
Juniper Forest
, elev.
2150 m
,
Nyika Plateau
,
Malawi
,
S10°40'
,
E33°50'
(13
December 13 1981
;
R. Jocque´
) (
MRAC
)
;
26,
3♀
from evergreen forest, forest area 51, elev.
2200 m
,
Nyika Plateau
,
Malawi
,
S10°40'
,
E33°50'
(10
December
10, 1981;
R. Jocque´
) (
MRAC
; 16,
1♀
in
AMNH
)
;
16 in
pitfall
near stream,
Kasyaula Forest
, elev.
2050m
,
Nyika Plateau
,
Malawi
S10°37'
,
E32°40'
(18
January
–4
February
, 1982;
R. Dowsett
and
F. Lemaire
) (
MRAC
)
;
3♀
from evergreen forest,
Chamambo Forest
,
Chikangawa
,
Viphya Mountains
,
Malawi
S11°50'
,
E33°48'
(
5 February 1978
;
R. Jocque´
) (
MRAC
)
.
ETYMOLOGY: The species’ epithet is derived from the classical Greek κνημιs, shinplate, and opxατos, fenced garden. Like the genus name, this species’ epithet refers to the peculiar circular arrangement of setae on the dorsal side of the mt I and II, which resembles a small fenced garden according to the authors.
DIAGNOSIS: Males of
H. orchatocnemis
are recognized by the strongly bent RTA with two sharp, diverging prongs, one pointing up, the other one outward. Females can be recognized by the short, stout ID and the sessile, piriform ST2.
MALE:
Measurements.
Total length 1.84; carapace 0.86 long, 0.68 wide; length of fe: I 0.73, II 0.76, III 0.57, IV 0.84.
Leg spination.
Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 5; mt: III plt 1 vt 0 rlt 0; IV plt 1 vt 1 rlt 1.
Coloration.
Carapace yellow with eight darker radial striae, lighter at the fovea. Chelicerae yellow. Sternum pale yellow, legs yellow. Abdomen pale yellow, no pattern.
Palp.
RTA a ventrolateral swelling that is strongly curved, its retrolateral side provided with two sharp, subequal, diverging prongs, one pointing up, one pointing outward; 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 shallow turn before entering illdefined swelling at base of embolus; MA originating ward, ending in evenly curved, gradually tapered part pointing down; embolus originating on posterior part of tegulum, whiplike, looped over slightly less than 360° (fig. 14f– h).
FEMALE:
Measurements.
Total length 2.62; carapace 1.11 long, 0.95 wide; length of fe: I 0.97, II 1.03, III 0.78, IV 1.11.
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 eight darker radial striae. Chelicerae and sternum yellow brown. Legs orange yellow. Abdomen peach, no pattern.
Genitalia.
Vulva: first stretches of IDs fused into one weakly sclerotized entrance chamber with entrance toward posterior side, second stretch of ID with sclerotized wall, short and stout, running in posterior direction and entering the globular ST1 after having described onehalf of a corkscrew loop. A piriform, sessile ST2 attached to ID at transition between thin walled and sclerotized parts (figs. 14i, j; 16c).
OTHER MATERIAL EXAMINED:
Malawi
: 16,
1♀
from:
Chamambo Evergreen Forest
,
Chikangawa
,
Viphya Mountains
S11°50'
,
E33°48'
(
1 November 1977
;
R. Jocque´
) (
MRAC
)
;
1♀
from
Chelinda
,
Nyika Plateau
S10°19'
,
E33°48'
(
12 December1977
;
R. Jocque´
) (
MRAC
)
;
one from under bark,
Chowo Evergreen Forest
,
Nyika Plateau
, elev.
2150 m
,
S10°40'
,
E33°50'
(
4 December 1981
;
R. Jocque´
) (
MRAC
)
;
16 in
pitfalls
at streambank, same locality, elev.
2150 m
(
4– 18 December 1981
;
R. Jocque´
) (
MRAC
)
;
26,
1♀
in
pitfalls
, same locality, elev.
2150 m
(
4 –18 December 1981
;
R. Jocque´
) (
MRAC
)
;
16 in
pitfalls
near stream, elev.
2050 m
,
Kasyaula Forest
,
Nyika Plateau
,
S10°37'
,
E32°40'
(
18 January–4 February 1982
;
R. Dowsett
and
F. Lemaire
) (
MRAC
)
;
26 from
Dambo
, along circular drive,
500 m
south from the side road to
Dembo Bridge
,
Nyika Plateau
, elev.
2350 m
,
S10°40'
,
E33°50'
(
12 December 1981
;
R. Jocque´
) (
MRAC
)
;
1♀
isolated wood west of
Dembo Bridge
, from road to
N’Ganda
hill,
Nyika Plateau
, elev.
2450 m
,
S10°40'
,
E33°50'
(
12 December 1981
;
R. Jocque´
) (
MRAC
)
;
16,
1♀
from isolated wood, same locality (12
52 BULLETIN AMERICAN MUSEUM OF NATURAL HISTORY
NO
. 256
2150 m
,
S10°40'
,
E33°50'
(
13 December 1981
;
R. Jocque´
) (
MRAC
)
;
in litter next to falls,
Juniper Forest
,
Nyika
Plateau
, elev.
2150 m
,
S10°40'
,
E33°50'
(
13 December 1981
;
R. Jocque´
) (
MRAC
)
;
16 in
pitfalls
near stream,
Manyenjere
,
Nyika
Plateau
, elev.
2025 m
,
S10°35'
,
E33°39'
(
3–20 February 1982
;
R. Dowsett
and
F. Lemaire
) (
MRAC
)
.
VARIABILITY: The transparency of the vulva and the exact orientation of ID connection to ST1 are variable.
DISTRIBUTION: Viphya Mountains and Nyika Plateau,
Malawi
.