Segestidea novaeguineae
Fuente:
Zenodo
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Recurso digital |
| Veröffentlicht: |
Zenodo
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866901167326363648 |
|---|---|
| author | Morris, Glenn K Ingrisch, Sigfrid Willemse, Fer Willemse, Luc De Luca, Paul A. Klimas, Dita |
| author_facet | Morris, Glenn K Ingrisch, Sigfrid Willemse, Fer Willemse, Luc De Luca, Paul A. Klimas, Dita |
| contents | <p><b><i>Segestidea novaeguineae</i> (Brancski, 1897)</b></p><p>(Figs 33, 34)</p><p><b>Specimens studied.</b> (1 male) Papua New Guinea, McAdam Nat. Park, Bulolo Gorge, 28 viii 1981, Coll. G.K.Morris.</p><p><b>Systematics.</b> The male fits perfectly the redescription (F. Willemse 1977, 1979).</p><p><b>Comments.</b> Common name palm katydid. Several <i>Sexava</i> spp. are pests of Oil Palm (Page 2005).</p><p><b>Distribution.</b> The locality of this species is covered by the distribution as mapped in F. Willemse (1977, 1979).</p><p><b>Stridulation.</b> Sustained over many seconds, the buzzes of the single recorded male (Fig. 34A) time resolved to regularly repeated wave trains of about 60 ms duration (Fig. 34B) with a regular period of a quarter second (0.25 s). The trains are characterized by a highly erratic amplitude envelope (Fig. 34B). Spectrum frequencies formed one broad aggregate in the audio range (Fig. 34D): for 10 averaged calls this aggregate centred on 10.0 kHz. Though the spectrum is markedly low Q, the waveform of the pulse is not a train of distinctly time-separated transients and at higher time resolution these are seen to be almost sinusoid (Fig 34C); visible are distortions of the sine waves which might be the result of overloading the recording equipment or alternatively of a low sampling rate.</p><p>A related species <i>Sexava femorata</i> C. Willemse, exhibits mandibular stridulation as a protest sound.A restrained female moved her labrum to and fro, sliding it “vertically over the anterior surface of her mandibles” (Lloyd & Gurney 1975). Working with a recorder (Uher 4000 Report L) limited to the audio frequency range these authors found sound spectral energy for this defensive strigin near 3.5 kHz.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_14970548 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Segestidea novaeguineae Morris, Glenn K Ingrisch, Sigfrid Willemse, Fer Willemse, Luc De Luca, Paul A. Klimas, Dita Biodiversity Taxonomy Animalia Arthropoda Insecta Orthoptera Tettigoniidae Segestidea Segestidea novaeguineae <p><b><i>Segestidea novaeguineae</i> (Brancski, 1897)</b></p><p>(Figs 33, 34)</p><p><b>Specimens studied.</b> (1 male) Papua New Guinea, McAdam Nat. Park, Bulolo Gorge, 28 viii 1981, Coll. G.K.Morris.</p><p><b>Systematics.</b> The male fits perfectly the redescription (F. Willemse 1977, 1979).</p><p><b>Comments.</b> Common name palm katydid. Several <i>Sexava</i> spp. are pests of Oil Palm (Page 2005).</p><p><b>Distribution.</b> The locality of this species is covered by the distribution as mapped in F. Willemse (1977, 1979).</p><p><b>Stridulation.</b> Sustained over many seconds, the buzzes of the single recorded male (Fig. 34A) time resolved to regularly repeated wave trains of about 60 ms duration (Fig. 34B) with a regular period of a quarter second (0.25 s). The trains are characterized by a highly erratic amplitude envelope (Fig. 34B). Spectrum frequencies formed one broad aggregate in the audio range (Fig. 34D): for 10 averaged calls this aggregate centred on 10.0 kHz. Though the spectrum is markedly low Q, the waveform of the pulse is not a train of distinctly time-separated transients and at higher time resolution these are seen to be almost sinusoid (Fig 34C); visible are distortions of the sine waves which might be the result of overloading the recording equipment or alternatively of a low sampling rate.</p><p>A related species <i>Sexava femorata</i> C. Willemse, exhibits mandibular stridulation as a protest sound.A restrained female moved her labrum to and fro, sliding it “vertically over the anterior surface of her mandibles” (Lloyd & Gurney 1975). Working with a recorder (Uher 4000 Report L) limited to the audio frequency range these authors found sound spectral energy for this defensive strigin near 3.5 kHz.</p> |
| title | Segestidea novaeguineae |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Orthoptera Tettigoniidae Segestidea Segestidea novaeguineae |
| url | https://doi.org/10.5281/zenodo.14970548 |