<p class = " HeadingRunIn " align = " left "> <strong> A revision of the <em> Pauropsalta annulata </ em> Goding & amp; Froggatt species group (Hemiptera: Cicadidae) based on morphology, calling songs and ecology, with investigations into calling song structure, molecular phylogenetic relationships and a case of hybridisation between two subspecies </ strong> </ p>
Author
POPPLE, L. W.
text
Zootaxa
2013
2013-10-25
3730
1
1
102
http://dx.doi.org/10.11646/zootaxa.3730.1.1
journal article
10.11646/zootaxa.3730.1.1
1175-5326
5268476
0C2C146B-FEE4-4150-A6D3-B3A5E5491E8B
Pauropsalta torrensis
sp. nov.
(
Figs 2J
,
4K
,
22E
,
27E–F
,
28
,
31B
,
34
)
Types:
Holotype
:
♂
‘
AUSTRALIA
/
Qld
/
Torrens Creek
via
Hughenden’
, ‘m.
v. lamp
/
20–21.xi.2005
’, ‘
L. Popple
&
N. Hando’
, ‘385-0002’, ‘
QM Reg. No. T
156327’ (
QM
)
;
Paratypes
:
QUEENSLAND
:
4♂
65km
E. of
Hughenden
,
4.ii.1981
,
Moulds
&
Moulds
(
MSM
)
;
1♂
Torrens Ck
, old road xing E. of
Torrens Ck township
,
N. Qld
,
4.ii.2006
,
Ewart
, light,
20°46.05'S
145°01.76'E
(
AE
)
;
3♂
2♀
Torrens Creek
via
Hughenden
, m.
v. lamp
,
20–21.xi.2005
,
Popple
&
Hando
(
LWP
)
;
1f #
Torrens Creek
via
Hughenden
, m.
v. lamp
,
20–21.xi.2005
,
Popple
&
Hando
, 385- 0005 (
QM
)
;
1♀
Torrens Creek township
,
90km
E. of
Hughenden
,
Qld
,
3.ii.1981
,
Moulds
&
Moulds
(
MSM
)
.
Diagnosis
(
Figs 4K
,
22E
,
27E–F
,
31B
). Both males and females entirely match the morphological description given for
P. subtropica
given above.
Distinguishing features
. Males and females are identical to those of
P. subtropica
in morphology; however, fundamental differences are evident in the structure of the male calling song (see below). In addition,
P. torrensis
is distributed parapatrically in relation to
P. subtropica
. In other words, the latter species occurs west to the White Mountains area, adjacent to the currently recognised eastern limit of the distribution of
P. torrensis
. The two species also occur in association with a completely different soil
types
(see below). This may also be useful for identification purposes.
Measurements
. N=
10 ♂
4 ♀
. Ranges and means (in parentheses), mm; BL:
♂
12.4–13.9 (13.2);
♀
13.4–15.6 (14.2); FWL:
♂
14.7–16.0 (15.4);
♀
16.0–17.6 (16.7); FWB:
♂
4.9–5.7 (5.4);
♀
5.3–5.7 (5.5); HW:
♂
3.8–4.5 (4.3);
♀
4.5–4.8 (4.6); PW:
♂
3.3–3.7 (3.4);
♀
3.6–3.8 (3.7); AW:
♂
3.6–4.1 (3.9);
♀
3.6–4.1 (3.9); OL:
♀
4.4–4.5 (4.5).
Etymology
. Named after Torrens Creek, a township in central
Queensland
, which forms part of the very restricted distribution of this species and is also the locality from which most of the
type
material was collected.
FIGURE 34.
Male calling song structure of
Pauropsalta torrensis
sp. nov.
illustrated in expanded waveform plots (explained in Fig. 8), showing both buzzing and lilting components. The spectrogram at the bottom of the figure displays song frequency, which exhibits no modulation between the song components in this species. This specimen was recorded in the field at Torrens Creek (20°47'S 145°01'E).
Distribution and Ecology
(
Figure 28
). Restricted to a small area of central
Queensland
west of the Burra Range, from
65 km
east of Hughenden east to Torrens Creek. Populations occur in association with eucalypts (including
E. xanthoclada
) growing on flats. Adults are present from at least November to February.
Geological and Pedological Associations
. Occurs in deep kandosols on a highly weathered Cainozoic sandplain.
Calling Song
(
Fig. 2J
,
34
). The calling song of
P. torrensis
is unusual within the
P. annulata
species group, in that both echemes in the lilting song are of almost equal duration. The lilting component comprises a short echeme (1–4 syllables,
0.011
–
0.036
s) followed by a short silence (
0.029
–
0.048
s), another short echeme (1–3 syllables,
0.011
–
0.031
s) and a long silence (
0.061
–
0.140
s) (all statistics, n=8 individuals). Buzzing components are brief and comprise a run of short echemes (1–3 syllables,
0.018
–
0.030
s) punctuated by short silences (
0.029
–
0.045
s). The call has a phrase repetition rate of
0.112
–
0.230
s, syllable repetition rate of 90–110 Hz and highest amplitude dominant frequency from 9.1–11.0 kHz, with a broad plateau from ~8.0–14.0 kHz. Male–female duets have yet to be heard and recorded from this species.