Salomona ustulata Redtenbacher, 1891
publication ID |
https://doi.org/10.11646/zootaxa.5600.1.1 |
publication LSID |
lsid:zoobank.org:pub:C553BC28-88FF-481D-A639-2188B29DABE7 |
DOI |
https://doi.org/10.5281/zenodo.14970562 |
persistent identifier |
https://treatment.plazi.org/id/03A6895C-FFE7-FFE3-FF6C-D16CFE691067 |
treatment provided by |
Plazi (2025-03-05 07:58:06, last updated 2025-03-05 08:10:31) |
scientific name |
Salomona ustulata Redtenbacher, 1891 |
status |
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Salomona ustulata Redtenbacher, 1891 View in CoL
( Figs 45 View FIGURE 45 , 51 View FIGURE 51 , 52 View FIGURE 52 )
Specimens studied: 4 males, 1 female PNG, McAdam Nat. Park , Bulolo Gorge, 28 viii 1981, (G.K. Morris NBC Leiden, MKMM) .
Systematics. The specimens fit fully the diagnosis in Redtenbacher (1891), Karny (1926, as S. lambda ) and especially as given in a synopsis of this large genus by C. Willemse (1957). The reliability of a number of characters could be underlined, among others frons, male cercus, measurements, pattern of coloration. Opportunity is taken here to give some details of the strigin in this species. The left file in ventral view ( Fig. 51 View FIGURE 51 ) straight, fusiform, widest part in distal fourth, length 1.9 mm, in profile sinuate with its most bulging part also in distal 4th; number of teeth about 58, most of them regularly spaced, about 7 teeth per 0.25 mm but distally (towards posterior margin of elytron) more closely set. ‘Mirror’/speculum of both elytra short trapezoid, length 1.4 mm, greatest width 1.8 mm along proximal edge which is close to and parallel to the file: membrane transparent, bordering veins without modifications, no fold. The cell bordering the mirror (the harp) distally, and that anteriorly, widened and transparent. Titillators with outer pair of sclerites as a left and right triangular-shaped sclerotized sheet; inner one medially strongly sclerotized, strongly divergent basally, scarcely divergent apically, the latter with tip simply rounded.
Distribution and habitat. The locality of the series at hand is in between the two already known, Mt. Lamington near Kokoda in the south and Sattelburg, Huon Gulf in the north. Calling at height from trees.
Comments. Type species of the genus Salomona is S. marmorata (Blanchard,1846) by original monotypy.
Stridulation. Readily audible to a human listener, this insect’s song recalls the regularity of a ticking clock and ‘ticker’ was its assigned field name. Silent intervals of several seconds (e.g., 4 s, Fig. 52A View FIGURE 52 ) separated tick bouts, a dozen or so ticks per bout. There is a very stable tick period of about 300 ms ( Fig. 52B View FIGURE 52 ). Forming the substructure of the ticks are trains of scarcely time-separated sinusoid amplitude fluctuations ( Fig. 52C, E View FIGURE 52 ). Time separation of pulses in this species is far less distinct than that seen with Salomona ‘darth’. This appears to be a kind of subresonant stridulation, with teeth engaging at just below the repetition rates needed for sustained resonance. The spectrum, in keeping with the waveform is relatively low Q with a broad peak occupying much of the higher audio and centred near 13 kHz.
Karny, H. H. (1926) Beitrage zur Malayischen Orthopterenfauna XII-XVII. Treubia, 9, 11-292.
Redtenbacher, J. (1891) Monographie der Conocephaliden. Verhandlungen der Kaiserlich-Koniglichen Zoologisch-Botanischen Gesellschaft in Wien, 41, 315-562, pls. 3 - 4.
Willemse, C. (1957) Notes on Mecopodidae (Orthoptera, Tettigonoidea). Tijdschrift voor Entomologie, 100, 35-42.
FIGURE 52. S. ustulata acoustic analysis: A) Four calling bouts at coarse time resolution. [dorsal aspect 11.5 cm 20°C, QMC]; song resolved by human ear as a succession of ticks; B) showing 5 such ticks; C) high resolution of one tick showing erratic amplitude envelope and run-on multiple tooth-event waveforms; D) Fourier spectrum has highest intensity audio band 8–16 kHz with lower intensity ultrasonics up to 40kHz; E) at high resolution waves almost suggesting resonance stridulation.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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