Guyalna bonaerensis (Berg, 1879)

Acosta, Riuler C., Timm, Vítor F., Zefa, Edison, da Costa, Maria K. M., Ruschel, Tatiana P., Lopes, Dimitrius A. R. & Kaminski, Lucas A., 2025, Pampa singers: an acoustic and visual guide to singing insects (Orthoptera and Hemiptera), Journal of Natural History 59 (21 - 24), pp. 1541-1589 : 1549-1550

Guyalna bonaerensis (Berg, 1879)

Flying song

Not observed.

Calling song

A long echemme lasting 10.64 seconds, containing 131 syllables. It can be emitted in chorus. Frequency distribution in broad-range frequency, with F1 at 3.1 ± 0.05 (3.1–3.2) and F2 at 9.65 ± 0.05 (9.6–9.7) kHz. During each second, 184.7 ± 8.36 (175–196) syllables are emitted.

Stress call

Not recorded.

Collection site

Área de ProteÇão Ambiental do Ibirapuitã. Collected on 20 January 2022, at 10 am, between 0.5 and 1 metre above the ground. The temperature was not recorded. Males were recorded on Vachellia caven ( Fabaceae ) scrubs, but only one female was collected ( Figures 3D 5E ).

Remarks

This is the first official sound record publication for the species.

Figures

Figure 3. Songs of Parnisini and Fidicinini cicadas. (A) Calling song of Parnisa sp. (B) Stress call of Parnisa sp. (C) Acanthoventris charrua Ruschel, 2023. (D) Guyalna bonaerensis (Berg, 1879). (E) Calling song of Guyalna viridifemur (Walker, 1850). (F) Stress call of Guyalna viridifemur (Walker, 1850). (G) Calling song of Pompanonia sp. (H) Stress call of Pompanonia sp. (I) Calling song of Proarna montevidensis.BERG, 1882. (J) Calling song of Proarna uruguayensis Berg, 1882

Figure 5. Visual guide of Pampa cicadas with songs recorderd. (A) Carineta diardi (Guérin-Méneville, 1829). (B) Guaranisaria llanoi Torres, 1964. (C) Parnisa sp. (D) Acanthoventris charrua Ruschel, 2023. (E) Guyalna bonaerensis (Berg, 1879). (F) Guyalna viridifemur (Walker, 1850). (G) Pompanonia sp. (H) Proarna montevidensis Berg, 1882. (I) Proarna uruguayensis Berg, 1882. (J) Quesada gigas (Olivier, 1790). (K) Tympanoterpes sp. (L) Zammara tympanum (Fabricius, 1803). Bar: 1cm. Photos by Riuler Corrêa Acosta.