Phylogeography of the endemic red-tailed cicadas of New Zealand (Hemiptera: Cicadidae: Rhodopsalta), and molecular, morphological and bioacoustical confirmation of the existence of Hudson’s Rhodopsalta microdora
Author
Bator, John
Author
Marshall, David C
Author
Hill, Kathy B R
Author
Cooley, John R
Author
Leston, Adam
Author
Simon, Chris
text
Zoological Journal of the Linnean Society
2022
2022-08-01
195
4
1219
1244
https://academic.oup.com/zoolinnean/article/195/4/1219/6365998
journal article
121332
10.1093/zoolinnean/zlab065
812a47cb-8654-4d5e-90af-fac9fe237911
0024-4082
6985713
Rhodopsalta cruentata
(
Fabricius, 1775
)
(Supporting Information,
Figs S3
, S
4
, S
8
)
Rhodopsalta cruentata
was described by I. C. Fabricius in 1775 as
Tettigonia cruentata
(see translation of the original Latin in the Supporting Information, Supplementary Materials). The description was based on specimens collected during Cook’s first
Endeavour
voyage by the naturalist Joseph Banks or one of his associates, as indicated by ‘Mus. Banks’ in the original description (see also
Radford, 1981
).
Rhodopsalta cruentata
possesses, among other features listed in that description, a prominent yellow midline stripe on the head, yellow forewing costa, and prominent red bands on the margins of all but the first or second abdominal segments. In addition, the proximal wing veins are green, the cruciform elevation is uniformly pale yellow–green to red in colour, and a broken silvery midline stripe is usually present from the head to at least the first abdominal segments.
Zimsen (1964: 290)
and
Larivière
et al.
(2010: 54)
state that
two syntypes
of this species are lodged at The Natural History Museum in London (NHM). This matches the NHM entomology register from 1863, which records the transfer of
two types
from the Linnean Society (B. Price, pers. comm.). The
two specimens
are kept in a separate drawer together with other Banks collection material, and they are accompanied by an unattached outlined label that reads, on two lines, ‘
Tettigonia cruentata
/ Fab. Entomol. p.
680 n.
10’ and a second unattached small underlined label reading ‘Type’. The outlined label text resembles other labels attributed to Fabricius by
Radford (1981)
.
Both
syntypes
were photographed for us by B. Price. One of them, number BMNH(E)#668764 (Supporting Information,
Fig. S6
), is a poor match to the description and current concept of
R. cruentata
. This specimen is ~
13.5 mm
in body length (tip of head to tip of abdomen). In addition to its NHM code label, it bears handwritten labels reading ‘
New Zealand
.’ and ‘63 / 47’. (The latter numbers are written one above the other and indicate entry 47 for
1863 in
the NHM specimen register mentioned above.) It has a black ground colour, a small, partial midline stripe on the pronotum, a dark midline stripe through the cruciform elevation and metanotum, and muted, narrow yellow bands on the abdomen, all features that are consistent with
N. sericea
rather than
R. cruentata
.
The other NHM
syntype
, male specimen BMNH(E)#668765 (
Fig. 8
), bears a red-circled round label that reads ‘Type’ and a handwritten round label ambiguously reading either ‘63 / 47’ or (less likely) ‘69 / 47’, in addition to its NHM specimen code label. The specimen has a body length of ~
16 mm
, has only one (left) antenna protruding anteriorly (the other is tucked beneath the head) and is missing the left forewing. The features of this specimen are consistent with the current concept of
R. cruentata
, especially the prominent red bands on the margins of the abdominal segments, the prominent yellow midline stripe on the pronotum and the yellow forewing costa. In addition, the specimen possesses a declivous, unflanged pronotum and a subacute, subascending upper pygofer lobe, which is a combination of attributes reported for
Rhodopsalta
but not the other
NZ
genera (for illustrations of the male and female genitalia of
R. cruentata
, see
Dugdale, 1972
).
Andrews & Gibbs (1989: 105–106)
reported finding an unlabelled male of
N. sericea
pinned alongside an
R. cruentata
specimen that they inspected in Fabricius’ personal collection now kept at the Zoologisk Museum, Copenhagen. We believe that the Copenhagen specimens are the two indicated by
Zimsen (1964: 290)
with the parenthetical phrase ‘Kiel 2 specimens’, because the Zoological Museum in Kiel now holds no material of
Tettigonia cruentata
(M. Kuhlmann, pers. comm.). Photographs of these
two specimens
sent to us by L. Vilhelmsen confirm the report by Andrews and Gibbs. One specimen is clearly an
N. sericea
male and bears only a determination label from J. S. Dugdale dated 1987. The other matches the description of
R. cruentata
and bears a small handwritten label with what looks like the species epithet ‘cruentata’, consistent with other labels made by Fabricius (
Zimsen, 1964: 10
). Not being part of the Banks collection in London, the two Copenhagen specimens are not regarded as
syntypes
.
Figure 8.
Lectotype of
Tettigonia cruentata
Fabricius, 1775
, type species of genus
Rhodopsalta
Dugdale, 1972
, with attached labels shown. Scale bars: 1 cm. Photographs by B. Price.
To eliminate the uncertainty caused by the heterogeneous
syntype
series for the identity of
R. cruentata
and for genus
Rhodopsalta
, of which
R. cruentata
is the type species, we designate NHM specimen BMNH(E)#668765 as the
lectotype
for
Tettigonia cruentata
Fabricius,
1775
in accordance with Article 74.7 of the Code of Zoological Nomenclature (
ICZN, 1999
). Given that the other NHM
syntype
is not a
R. cruentata
specimen, we designate no
paralectotype
.
Rhodopsalta cruentata
is the most widely distributed species of the genus, and it can be found singing on a wide range of vegetation
types
, ranging from grasses and sedges, including those on sand dunes, to native manuka myrtle (
Leptospermum scoparium
J.R.Forst. & G.Forst
.) to introduced species, such as common alder (
Alnus glutinosa
L
.) and kiwifruit (Chinese gooseberry,
Actinidia
Lindl.
). Adults are active from November to April (
Myers, 1929b
;
Larivière
et al.
, 2010
).