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 deelemanae
Huber, 2011
Fig. 9
Calapnita deelemanae
Huber 2011
: 59
, figs 72–73, 198–201 (♂♀).
Diagnosis
. Males can be easily distinguished from
C. subphyllicola
by bulbal appendix (pointed distally with small subdistal process, very similar to
C. phasmoides
and
C. anai
; cf.
Figs 101
,
110
); from
C. anai
and
C. phasmoides
by distally strongly bent procursus (figs
198–199 in
Huber 2011
; very similar to
C. subphyllicola
). Females of these four species appear indistinguishable externally, but the round internal membranous ‘sac’ of
C. deelemanae
(fig.
201 in
Huber 2011
) might be distinctive.
New
material examined
. MALAYSIA-BORNEO:
2♂
3♀
,
ZFMK
(
Ar
16001),
Sabah
,
Mount Kinabalu
,
Poring Hot Springs
, forest near beginning of
Kipungit Trail
(
6.048°N
,
116.706°E
),
450 m
a.s.l.
, on undersides of leaves,
7.viii.2014
(
B.A. Huber
,
S.B. Huber
)
;
1♂
7♀
2 juvs in absolute ethanol,
ZFMK
(
Bor
207), same data
.
1♂
,
RMNH
(
ARA
17804),
Poring
, fruit plantation, canopy fogging,
23.i.2001
(collector not given)
.
1♀
,
RMNH
(
ARA
17805),
Poring Hot Springs
(
6.033°N
,
116.833°E
), canopy fogging
Aglaia
sp., primary forest,
500–700 m
a.s.l.
,
28.iii.1998
(
A. Floren
)
.
1♂
1♀
(2 vials),
RMNH
(
ARA
17806–07
),
Kinabalu National Park
,
Monggis
(
6.220°N
,
116.735°E
; not as on labels:
6.083°N
,
116.65°E
),
23.ix.2006
(
A. Floren
)
.
3♀
(2 vials),
RMNH
(
ARA
17808–09
),
Kinabalu National Park
(coordinates on label probably wrong:
6.083°N
,
116.65°E
), 16/
17.ix.2006
(
A. Floren
)
.
5♂
4♀
2 juvs,
ZFMK
(
Ar
16002),
Sabah
,
Sepilok
, Rainforest Discovery
Centre
, forest along
Pitta Trail
(5.875–
5.878°N
, 117.937–
117.942°E
),
30 m
a.s.l.
, on undersides of leaves,
9.viii.2014
(
B.A. Huber
,
S.B. Huber
)
;
1♂
1♀
3 juvs in absolute ethanol,
ZFMK
(
Bor
175), same data.
FIGURES 72–80
.
Calapnita semengoh
Huber
, SEM micrographs (ZFMK, Ar 15999–16000).
72
. Male chelicerae, oblique frontal view.
73
. Male palpal tarsal organ.
74
. Basis of left bulb, prolateral view (arrow points at membranous process; asterisk marks unidentified structure).
75
. Detail of embolus, showing serrated edge.
76
. Tips of procursus and embolus (arrow points at sperm duct opening).
77
. Split hair on procursus.
78
. Male ALS.
79
. Female prosoma, frontal view.
80
. Epigynum, ventral view. b, genital bulb; e, embolus; p, procursus. Scale lines: 10 µm (73, 75, 77, 78), 50 µm (74), 100 µm (72, 76, 79, 80).
Notes
. As mentioned in the original description, there is slight variation among males from different localities. This is confirmed by the new material: the appendix of males from Sepilok resembles that of males from the
type
locality (Danum Valley), while males from Mount Kinabalu appear identical to the single male specimen previously known from this locality (i.e., with slightly longer subdistal side branch on appendix). Tibia
1 in
new material:
6 males
: 6.7–7.9 (mean 7.4);
11 females
: 5.6–6.9 (mean 6.3).
Natural history
. At Poring, most specimens were found on large leaves along the trail near the park entrance; the species seemed to be much less abundant in the forest. At Sepilok, specimens were found on leaves of various monocot and dicot plants. Egg-sacs contained 9–
12 eggs
each, consistently lined up in a single row (
Fig. 9
).
Distribution
. Widely distributed in
Sabah
, northeastern Borneo (
Fig. 281
).