Revision and cladistic analysis of the Southeast Asian leaf-dwelling spider genus Calapnita Simon (Araneae, Pholcidae)
Author
Bernhard A. Huber
text
Zootaxa
2017
4219
1
1
63
journal article
37319
10.5281/zenodo.273086
0d2332a5-1968-49d7-a570-f31d386eccb3
1175-5326
273086
0FA0F51A-3868-4F13-A93D-E34CA5A689F8
Calapnita saluang
Huber, 2011
Figs 124–125
,
188–195
“
Micromerys vermiformis
” (misidentification)
—
Simon 1901
: 51
.
“
Calapnita vermiformis
” (misidentification)—
Deeleman-Reinhold 1986b
: 212
(only specimens from Sumatra).
Huber 1998
: fig. 2f.
Huber 2000
: figs 34, 69, 124, 177. Murphy & Murphy 2000: fig. 47.8.
Calapnita saluang
Huber, 2011
: 48
, figs 43–44, 153–169 (♂♀).
Diagnosis
. Distinguished from other species of
vermiformis
group by tip of procursus (distal part and ventral flap of approximately same size, parallel and curved towards dorsal;
Figs 188–189
; see also figs
153, 154, 158 in
Huber 2011
) and by crescent-shaped pore plates (
Fig. 194
; see also fig.
157 in
Huber 2011
); from most (except
C. bugis
) also by thin proximal part of bipartite cheliceral apophysis (
Fig. 192
; see also fig.
161 in
Huber 2011
) and by strong and regular fringes at tip of embolus (figs
153, 160, 163 in
Huber 2011
); from several species also by narrow and distinct epigynal ‘knob’ (
Fig. 195
).
New
material examined
. INDONESIA-SUMATRA:
5♂
4♀
,
ZFMK
(
Ar
16030),
North Sumatra
, near
Berastagi
, forest near
Sikulikap Fall
(
3.242°N
,
98.538°E
),
1150 m
a.s.l.
,
17.x.2009
(
S. Sutono
)
;
1♂
5♀
1 juv.
in absolute ethanol,
ZFMK
(
Ind
128), same data
.
3♂
5♀
,
ZFMK
(
Ar
16031),
West Sumatra
,
Lembah
Anai
Forest Reserve
, forest along stream (
0.472°S
,
100.363°E
),
600 m
a.s.l.
,
19.x.2009
(
S. Sutono
)
;
1♂
1♀
in absolute ethanol,
ZFMK
(
Ind
133), same data
.
1♀
,
ZFMK
(
Ar
16032),
West Sumatra
, forest at
Ngalau Indah Cave
near
Payakumbuh
(
0.255°S
,
100.603°E
),
640 m
a.s.l.
,
20.x.2009
(
S. Sutono
)
.
1♂
1♀
,
ZFMK
(
Ar
16033),
West Sumatra
, forest at
Gua
Limpa (
Cave
) above
Harau Valley
(
0.104°S
,
100.680°E
),
770 m
a.s.l.
,
21.x.2009
(
S. Sutono
)
;
1♂
1♀
in absolute ethanol,
ZFMK
(
Ind
147), same data
.
FIGURES 188–203
.
Calapnita saluang
Huber
(188–195; ZFMK, Ar 16031) and
C. vermiformis
Simon
from Mount Isarog (196–203; ZFMK, Ar 16041).
188–189, 196–197
. Left procursi, prolateral and retrolateral views (arrow points at distinctive sclerite).
190, 198
. Left palpal trochanters, retrolateral views.
191, 199
. Left palpal femora, prolateral views.
192–193, 200– 201
. Right male chelicerae, frontal and lateral views.
194, 202
. Cleared female genitalia, dorsal views.
195, 203
. Epigyna, ventral views. Scale lines: 0.3 mm.
MALAYSIA
:
1♂
1♀
,
ZFMK
(
Ar
16034),
Johor
,
Gunung Ledang
, forest near
Puteri Falls
(2°21.2’–
2°21.6’N
, 102°37.8’–
102°38.1’E
),
100–300 m
a.s.l.
, on leaves,
17.ii.2015
(
B.A. Huber
)
;
1♂
1♀
in absolute ethanol,
ZFMK
(
Mal
240), same data
.
2♀
,
ZFMK
(
Ar
16035),
Gunung Ledang
, forest near
Puteri Falls
(
2°21.3’N
,
102°38.1’E
),
110 m
a.s.l.
, on leaves,
18.ii.2015
(
B.A. Huber
), night collecting
.
1♀
in absolute ethanol,
ZFMK
(
Mal
259),
Pahang
,
Ulu Dong
(
3°56.2’N
,
102°01.9’E
),
190 m
a.s.l.
, forest near river, on leaf,
21.ii.2015
(
B.A. Huber
,
A.R.M. Ghazali
,
K.A. Braima
)
.
1♀
in absolute ethanol,
ZFMK
(
Mal
271),
Perak
,
Gunung Liang
(
3°47.7’N
,
101°32.0’E
),
250 m
a.s.l.
, forest along river, on leaf,
22.ii.2015
(
B.A. Huber
,
A.R.M. Ghazali
,
K.A. Braima
).
THAILAND
:
5♂
2♀
1 juv.
,
ZFMK
(
Ar
16036), and
1♂
1♀
,
PSUZC
,
Krabi
,
Khao Phanom Bencha National Park
, trails near headquarters (
8°14.1’N
,
98°55.1’E
),
150–300 m
a.s.l.
, on leaves,
8.iii.2015
(
B.A. Huber
,
B. Petcharad
)
;
1♂
8♀
in absolute ethanol,
ZFMK
(
Mal
337), same data
.
1♀
,
ZFMK
(
Ar
16037),
Narathiwat
,
Hala Bala Wildlife Sanctuary
, ‘site 1’, forest at river near headquarters (
5°47.8’N
,
101°49.9’E
),
90 m
a.s.l.
, on leaf,
1.iii.2015
(
B.A. Huber
,
B. Petcharad
)
;
2♀
in absolute ethanol,
ZFMK
(
Mal
300), same data
.
1♀
,
ZFMK
(Ar 16038), same locality, night collecting, on leaf,
2.iii.2015
(
B.A. Huber
,
B. Petcharad
)
;
1♀
in absolute ethanol,
ZFMK
(
Mal
317), same data
.
1♂
,
ZFMK
(
Ar
16039),
Hala Bala Wildlife Sanctuary
, dry ravine near station (
5°48.0’N
,
101°50.0’E
),
130 m
a.s.l.
, on leaf, night collecting,
3.iii.2015
(
B.A. Huber
,
B. Petcharad
)
;
2♀
in absolute ethanol,
ZFMK
(
Mal
319), same data
.
2♀
in absolute ethanol,
ZFMK
(
Mal
306),
Hala Bala Wildlife Sanctuary
, ‘site 2’ (
5°48.4’N
,
101°48.6’E
),
330 m
a.s.l.
, forest near river, on leaves,
2.iii.2015
(
B.A. Huber
,
B. Petcharad
)
.
6♂
2♀
,
ZFMK
(
Ar
16040),
Surat Thani
,
Khao Sok National Park
, forest along nature trail (
8°54.8’N
, 98°29.3’–
98°30.5’E
), on leaves,
110–160 m
a.s.l.
,
11–12.iii.2015
(
B.A. Huber
,
B. Petcharad
)
;
1♂
2♀
in absolute ethanol,
ZFMK
(
Mal
358), same data
.
Measurements and variation
. Male from Lembah
Anai
: palpal femur as in
Fig. 191
, distal process at 28% of femur length; palpal tibia length/diameter 0.55/0.33; bulb length 0.38; embolus length 0.50.
There seems to be no significant genitalic variation among specimens from different localities in this widely distributed species. Tibia
1 in
20 newly examined males: 6.2–7.5 (mean 6.9); in
19 females
: 5.3–6.5 (mean 6.0).
Natural history
. At Sikulikap Fall, most specimens were collected at one patch of large-leaved herbaceous plants close to the ground; webs were barely visible, consisting of only a few threads directly attached to the leaf surface; when disturbed the spiders did not vibrate but ran away (and eventually dropped to the ground). At most localities, this species occurs together with either
C. phyllicola
or with
C. anai
(or with both). Egg-sacs in this species are only moderately elongated (
Fig. 125
).
Distribution
. Widely distributed on the Malay Peninsula and on
Sumatra
, reaching into western
Java
(
Fig. 283
). The specimens from
Java
(Cibodas;
1♂
3♀
in RMNH, ARA 17408) listed in
Huber 2011
were re-examined for the present paper and their identification confirmed.